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-rw-r--r--drivers/scsi/fnic/Makefile5
-rw-r--r--drivers/scsi/fnic/fdls_disc.c4980
-rw-r--r--drivers/scsi/fnic/fdls_fc.h253
-rw-r--r--drivers/scsi/fnic/fip.c1005
-rw-r--r--drivers/scsi/fnic/fip.h159
-rw-r--r--drivers/scsi/fnic/fnic.h288
-rw-r--r--drivers/scsi/fnic/fnic_attrs.c12
-rw-r--r--drivers/scsi/fnic/fnic_debugfs.c11
-rw-r--r--drivers/scsi/fnic/fnic_fcs.c1742
-rw-r--r--drivers/scsi/fnic/fnic_fdls.h434
-rw-r--r--drivers/scsi/fnic/fnic_fip.h48
-rw-r--r--drivers/scsi/fnic/fnic_io.h14
-rw-r--r--drivers/scsi/fnic/fnic_isr.c28
-rw-r--r--drivers/scsi/fnic/fnic_main.c758
-rw-r--r--drivers/scsi/fnic/fnic_pci_subsys_devid.c131
-rw-r--r--drivers/scsi/fnic/fnic_res.c77
-rw-r--r--drivers/scsi/fnic/fnic_scsi.c1161
-rw-r--r--drivers/scsi/fnic/fnic_stats.h49
-rw-r--r--drivers/scsi/fnic/fnic_trace.c97
19 files changed, 9301 insertions, 1951 deletions
diff --git a/drivers/scsi/fnic/Makefile b/drivers/scsi/fnic/Makefile
index 6214a6b2e96d..c025e875009e 100644
--- a/drivers/scsi/fnic/Makefile
+++ b/drivers/scsi/fnic/Makefile
@@ -2,11 +2,13 @@
obj-$(CONFIG_FCOE_FNIC) += fnic.o
fnic-y := \
+ fip.o\
fnic_attrs.o \
fnic_isr.o \
fnic_main.o \
fnic_res.o \
fnic_fcs.o \
+ fdls_disc.o \
fnic_scsi.o \
fnic_trace.o \
fnic_debugfs.o \
@@ -15,4 +17,5 @@ fnic-y := \
vnic_intr.o \
vnic_rq.o \
vnic_wq_copy.o \
- vnic_wq.o
+ vnic_wq.o \
+ fnic_pci_subsys_devid.o
diff --git a/drivers/scsi/fnic/fdls_disc.c b/drivers/scsi/fnic/fdls_disc.c
new file mode 100644
index 000000000000..c2b6f4eb338e
--- /dev/null
+++ b/drivers/scsi/fnic/fdls_disc.c
@@ -0,0 +1,4980 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ */
+
+#include <linux/workqueue.h>
+#include "fnic.h"
+#include "fdls_fc.h"
+#include "fnic_fdls.h"
+#include <scsi/fc/fc_fcp.h>
+#include <scsi/scsi_transport_fc.h>
+#include <linux/utsname.h>
+
+#define FC_FC4_TYPE_SCSI 0x08
+#define PORT_SPEED_BIT_8 8
+#define PORT_SPEED_BIT_9 9
+#define PORT_SPEED_BIT_14 14
+#define PORT_SPEED_BIT_15 15
+
+/* FNIC FDMI Register HBA Macros */
+#define FNIC_FDMI_NUM_PORTS 1
+#define FNIC_FDMI_NUM_HBA_ATTRS 9
+#define FNIC_FDMI_TYPE_NODE_NAME 0X1
+#define FNIC_FDMI_TYPE_MANUFACTURER 0X2
+#define FNIC_FDMI_MANUFACTURER "Cisco Systems"
+#define FNIC_FDMI_TYPE_SERIAL_NUMBER 0X3
+#define FNIC_FDMI_TYPE_MODEL 0X4
+#define FNIC_FDMI_TYPE_MODEL_DES 0X5
+#define FNIC_FDMI_MODEL_DESCRIPTION "Cisco Virtual Interface Card"
+#define FNIC_FDMI_TYPE_HARDWARE_VERSION 0X6
+#define FNIC_FDMI_TYPE_DRIVER_VERSION 0X7
+#define FNIC_FDMI_TYPE_ROM_VERSION 0X8
+#define FNIC_FDMI_TYPE_FIRMWARE_VERSION 0X9
+#define FNIC_FDMI_NN_LEN 8
+#define FNIC_FDMI_MANU_LEN 20
+#define FNIC_FDMI_SERIAL_LEN 16
+#define FNIC_FDMI_MODEL_LEN 12
+#define FNIC_FDMI_MODEL_DES_LEN 56
+#define FNIC_FDMI_HW_VER_LEN 16
+#define FNIC_FDMI_DR_VER_LEN 28
+#define FNIC_FDMI_ROM_VER_LEN 8
+#define FNIC_FDMI_FW_VER_LEN 16
+
+/* FNIC FDMI Register PA Macros */
+#define FNIC_FDMI_TYPE_FC4_TYPES 0X1
+#define FNIC_FDMI_TYPE_SUPPORTED_SPEEDS 0X2
+#define FNIC_FDMI_TYPE_CURRENT_SPEED 0X3
+#define FNIC_FDMI_TYPE_MAX_FRAME_SIZE 0X4
+#define FNIC_FDMI_TYPE_OS_NAME 0X5
+#define FNIC_FDMI_TYPE_HOST_NAME 0X6
+#define FNIC_FDMI_NUM_PORT_ATTRS 6
+#define FNIC_FDMI_FC4_LEN 32
+#define FNIC_FDMI_SUPP_SPEED_LEN 4
+#define FNIC_FDMI_CUR_SPEED_LEN 4
+#define FNIC_FDMI_MFS_LEN 4
+#define FNIC_FDMI_MFS 0x800
+#define FNIC_FDMI_OS_NAME_LEN 16
+#define FNIC_FDMI_HN_LEN 24
+
+#define FDLS_FDMI_PLOGI_PENDING 0x1
+#define FDLS_FDMI_REG_HBA_PENDING 0x2
+#define FDLS_FDMI_RPA_PENDING 0x4
+#define FDLS_FDMI_ABORT_PENDING 0x8
+#define FDLS_FDMI_MAX_RETRY 3
+
+#define RETRIES_EXHAUSTED(iport) \
+ (iport->fabric.retry_counter == FABRIC_LOGO_MAX_RETRY)
+
+#define FNIC_TPORT_MAX_NEXUS_RESTART (8)
+
+#define SCHEDULE_OXID_FREE_RETRY_TIME (300)
+
+/* Private Functions */
+static void fdls_fdmi_register_hba(struct fnic_iport_s *iport);
+static void fdls_fdmi_register_pa(struct fnic_iport_s *iport);
+static void fdls_send_rpn_id(struct fnic_iport_s *iport);
+static void fdls_process_flogi_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr,
+ void *rx_frame);
+static void fnic_fdls_start_plogi(struct fnic_iport_s *iport);
+static void fnic_fdls_start_flogi(struct fnic_iport_s *iport);
+static struct fnic_tport_s *fdls_create_tport(struct fnic_iport_s *iport,
+ uint32_t fcid,
+ uint64_t wwpn);
+static void fdls_target_restart_nexus(struct fnic_tport_s *tport);
+static void fdls_start_tport_timer(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport, int timeout);
+static void fdls_tport_timer_callback(struct timer_list *t);
+static void fdls_send_fdmi_plogi(struct fnic_iport_s *iport);
+static void fdls_start_fabric_timer(struct fnic_iport_s *iport,
+ int timeout);
+static void fdls_init_plogi_frame(uint8_t *frame, struct fnic_iport_s *iport);
+static void fdls_init_els_acc_frame(uint8_t *frame, struct fnic_iport_s *iport);
+static void fdls_init_els_rjt_frame(uint8_t *frame, struct fnic_iport_s *iport);
+static void fdls_init_logo_frame(uint8_t *frame, struct fnic_iport_s *iport);
+static void fdls_init_fabric_abts_frame(uint8_t *frame,
+ struct fnic_iport_s *iport);
+
+uint8_t *fdls_alloc_frame(struct fnic_iport_s *iport)
+{
+ struct fnic *fnic = iport->fnic;
+ uint8_t *frame = NULL;
+
+ frame = mempool_alloc(fnic->frame_pool, GFP_ATOMIC);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame");
+ return NULL;
+ }
+
+ memset(frame, 0, FNIC_FCOE_FRAME_MAXSZ);
+ return frame;
+}
+
+/**
+ * fdls_alloc_oxid - Allocate an oxid from the bitmap based oxid pool
+ * @iport: Handle to iport instance
+ * @oxid_frame_type: Type of frame to allocate
+ * @active_oxid: the oxid which is in use
+ *
+ * Called with fnic lock held
+ */
+uint16_t fdls_alloc_oxid(struct fnic_iport_s *iport, int oxid_frame_type,
+ uint16_t *active_oxid)
+{
+ struct fnic *fnic = iport->fnic;
+ struct fnic_oxid_pool_s *oxid_pool = &iport->oxid_pool;
+ int idx;
+ uint16_t oxid;
+
+ lockdep_assert_held(&fnic->fnic_lock);
+
+ /*
+ * Allocate next available oxid from bitmap
+ */
+ idx = find_next_zero_bit(oxid_pool->bitmap, FNIC_OXID_POOL_SZ, oxid_pool->next_idx);
+ if (idx == FNIC_OXID_POOL_SZ) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Alloc oxid: all oxid slots are busy iport state:%d\n",
+ iport->state);
+ return FNIC_UNASSIGNED_OXID;
+ }
+
+ WARN_ON(test_and_set_bit(idx, oxid_pool->bitmap));
+ oxid_pool->next_idx = (idx + 1) % FNIC_OXID_POOL_SZ; /* cycle through the bitmap */
+
+ oxid = FNIC_OXID_ENCODE(idx, oxid_frame_type);
+ *active_oxid = oxid;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "alloc oxid: 0x%x, iport state: %d\n",
+ oxid, iport->state);
+ return oxid;
+}
+
+/**
+ * fdls_free_oxid_idx - Free the oxid using the idx
+ * @iport: Handle to iport instance
+ * @oxid_idx: The index to free
+ *
+ * Free the oxid immediately and make it available for new requests
+ * Called with fnic lock held
+ */
+static void fdls_free_oxid_idx(struct fnic_iport_s *iport, uint16_t oxid_idx)
+{
+ struct fnic *fnic = iport->fnic;
+ struct fnic_oxid_pool_s *oxid_pool = &iport->oxid_pool;
+
+ lockdep_assert_held(&fnic->fnic_lock);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "free oxid idx: 0x%x\n", oxid_idx);
+
+ WARN_ON(!test_and_clear_bit(oxid_idx, oxid_pool->bitmap));
+}
+
+/**
+ * fdls_reclaim_oxid_handler - Callback handler for delayed_oxid_work
+ * @work: Handle to work_struct
+ *
+ * Scheduled when an oxid is to be freed later
+ * After freeing expired oxid(s), the handler schedules
+ * another callback with the remaining time
+ * of next unexpired entry in the reclaim list.
+ */
+void fdls_reclaim_oxid_handler(struct work_struct *work)
+{
+ struct fnic_oxid_pool_s *oxid_pool = container_of(work,
+ struct fnic_oxid_pool_s, oxid_reclaim_work.work);
+ struct fnic_iport_s *iport = container_of(oxid_pool,
+ struct fnic_iport_s, oxid_pool);
+ struct fnic *fnic = iport->fnic;
+ struct reclaim_entry_s *reclaim_entry, *next;
+ unsigned long delay_j, cur_jiffies;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Reclaim oxid callback\n");
+
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+
+ /* Though the work was scheduled for one entry,
+ * walk through and free the expired entries which might have been scheduled
+ * at around the same time as the first entry
+ */
+ list_for_each_entry_safe(reclaim_entry, next,
+ &(oxid_pool->oxid_reclaim_list), links) {
+
+ /* The list is always maintained in the order of expiry time */
+ cur_jiffies = jiffies;
+ if (time_before(cur_jiffies, reclaim_entry->expires))
+ break;
+
+ list_del(&reclaim_entry->links);
+ fdls_free_oxid_idx(iport, reclaim_entry->oxid_idx);
+ kfree(reclaim_entry);
+ }
+
+ /* schedule to free up the next entry */
+ if (!list_empty(&oxid_pool->oxid_reclaim_list)) {
+ reclaim_entry = list_first_entry(&oxid_pool->oxid_reclaim_list,
+ struct reclaim_entry_s, links);
+
+ delay_j = reclaim_entry->expires - cur_jiffies;
+ schedule_delayed_work(&oxid_pool->oxid_reclaim_work, delay_j);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Scheduling next callback at:%ld jiffies\n", delay_j);
+ }
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+}
+
+/**
+ * fdls_free_oxid - Helper function to free the oxid
+ * @iport: Handle to iport instance
+ * @oxid: oxid to free
+ * @active_oxid: the oxid which is in use
+ *
+ * Called with fnic lock held
+ */
+void fdls_free_oxid(struct fnic_iport_s *iport,
+ uint16_t oxid, uint16_t *active_oxid)
+{
+ fdls_free_oxid_idx(iport, FNIC_OXID_IDX(oxid));
+ *active_oxid = FNIC_UNASSIGNED_OXID;
+}
+
+/**
+ * fdls_schedule_oxid_free - Schedule oxid to be freed later
+ * @iport: Handle to iport instance
+ * @active_oxid: the oxid which is in use
+ *
+ * Gets called in a rare case scenario when both a command
+ * (fdls or target discovery) timed out and the following ABTS
+ * timed out as well, without a link change.
+ *
+ * Called with fnic lock held
+ */
+void fdls_schedule_oxid_free(struct fnic_iport_s *iport, uint16_t *active_oxid)
+{
+ struct fnic *fnic = iport->fnic;
+ struct fnic_oxid_pool_s *oxid_pool = &iport->oxid_pool;
+ struct reclaim_entry_s *reclaim_entry;
+ unsigned long delay_j = msecs_to_jiffies(OXID_RECLAIM_TOV(iport));
+ int oxid_idx = FNIC_OXID_IDX(*active_oxid);
+
+ lockdep_assert_held(&fnic->fnic_lock);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Schedule oxid free. oxid: 0x%x\n", *active_oxid);
+
+ *active_oxid = FNIC_UNASSIGNED_OXID;
+
+ reclaim_entry = (struct reclaim_entry_s *)
+ kzalloc(sizeof(struct reclaim_entry_s), GFP_ATOMIC);
+
+ if (!reclaim_entry) {
+ FNIC_FCS_DBG(KERN_WARNING, fnic->host, fnic->fnic_num,
+ "Failed to allocate memory for reclaim struct for oxid idx: %d\n",
+ oxid_idx);
+
+ /* Retry the scheduling */
+ WARN_ON(test_and_set_bit(oxid_idx, oxid_pool->pending_schedule_free));
+ schedule_delayed_work(&oxid_pool->schedule_oxid_free_retry, 0);
+ return;
+ }
+
+ reclaim_entry->oxid_idx = oxid_idx;
+ reclaim_entry->expires = round_jiffies(jiffies + delay_j);
+
+ list_add_tail(&reclaim_entry->links, &oxid_pool->oxid_reclaim_list);
+
+ schedule_delayed_work(&oxid_pool->oxid_reclaim_work, delay_j);
+}
+
+/**
+ * fdls_schedule_oxid_free_retry_work - Thread to schedule the
+ * oxid to be freed later
+ *
+ * @work: Handle to the work struct
+ */
+void fdls_schedule_oxid_free_retry_work(struct work_struct *work)
+{
+ struct fnic_oxid_pool_s *oxid_pool = container_of(work,
+ struct fnic_oxid_pool_s, schedule_oxid_free_retry.work);
+ struct fnic_iport_s *iport = container_of(oxid_pool,
+ struct fnic_iport_s, oxid_pool);
+ struct fnic *fnic = iport->fnic;
+ struct reclaim_entry_s *reclaim_entry;
+ unsigned long delay_j = msecs_to_jiffies(OXID_RECLAIM_TOV(iport));
+ unsigned long flags;
+ int idx;
+
+ for_each_set_bit(idx, oxid_pool->pending_schedule_free, FNIC_OXID_POOL_SZ) {
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Schedule oxid free. oxid idx: %d\n", idx);
+
+ reclaim_entry = kzalloc(sizeof(*reclaim_entry), GFP_KERNEL);
+ if (!reclaim_entry) {
+ schedule_delayed_work(&oxid_pool->schedule_oxid_free_retry,
+ msecs_to_jiffies(SCHEDULE_OXID_FREE_RETRY_TIME));
+ return;
+ }
+
+ clear_bit(idx, oxid_pool->pending_schedule_free);
+ reclaim_entry->oxid_idx = idx;
+ reclaim_entry->expires = round_jiffies(jiffies + delay_j);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_add_tail(&reclaim_entry->links, &oxid_pool->oxid_reclaim_list);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ schedule_delayed_work(&oxid_pool->oxid_reclaim_work, delay_j);
+ }
+}
+
+static bool fdls_is_oxid_fabric_req(uint16_t oxid)
+{
+ int oxid_frame_type = FNIC_FRAME_TYPE(oxid);
+
+ switch (oxid_frame_type) {
+ case FNIC_FRAME_TYPE_FABRIC_FLOGI:
+ case FNIC_FRAME_TYPE_FABRIC_PLOGI:
+ case FNIC_FRAME_TYPE_FABRIC_RPN:
+ case FNIC_FRAME_TYPE_FABRIC_RFT:
+ case FNIC_FRAME_TYPE_FABRIC_RFF:
+ case FNIC_FRAME_TYPE_FABRIC_GPN_FT:
+ case FNIC_FRAME_TYPE_FABRIC_LOGO:
+ break;
+ default:
+ return false;
+ }
+ return true;
+}
+
+static bool fdls_is_oxid_fdmi_req(uint16_t oxid)
+{
+ int oxid_frame_type = FNIC_FRAME_TYPE(oxid);
+
+ switch (oxid_frame_type) {
+ case FNIC_FRAME_TYPE_FDMI_PLOGI:
+ case FNIC_FRAME_TYPE_FDMI_RHBA:
+ case FNIC_FRAME_TYPE_FDMI_RPA:
+ break;
+ default:
+ return false;
+ }
+ return true;
+}
+
+static bool fdls_is_oxid_tgt_req(uint16_t oxid)
+{
+ int oxid_frame_type = FNIC_FRAME_TYPE(oxid);
+
+ switch (oxid_frame_type) {
+ case FNIC_FRAME_TYPE_TGT_PLOGI:
+ case FNIC_FRAME_TYPE_TGT_PRLI:
+ case FNIC_FRAME_TYPE_TGT_ADISC:
+ case FNIC_FRAME_TYPE_TGT_LOGO:
+ break;
+ default:
+ return false;
+ }
+ return true;
+}
+
+static void fdls_reset_oxid_pool(struct fnic_iport_s *iport)
+{
+ struct fnic_oxid_pool_s *oxid_pool = &iport->oxid_pool;
+
+ oxid_pool->next_idx = 0;
+}
+
+void fnic_del_fabric_timer_sync(struct fnic *fnic)
+{
+ fnic->iport.fabric.del_timer_inprogress = 1;
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ timer_delete_sync(&fnic->iport.fabric.retry_timer);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ fnic->iport.fabric.del_timer_inprogress = 0;
+}
+
+void fnic_del_tport_timer_sync(struct fnic *fnic,
+ struct fnic_tport_s *tport)
+{
+ tport->del_timer_inprogress = 1;
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ timer_delete_sync(&tport->retry_timer);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ tport->del_timer_inprogress = 0;
+}
+
+static void
+fdls_start_fabric_timer(struct fnic_iport_s *iport, int timeout)
+{
+ u64 fabric_tov;
+ struct fnic *fnic = iport->fnic;
+
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x: Canceling fabric disc timer\n",
+ iport->fcid);
+ fnic_del_fabric_timer_sync(fnic);
+ iport->fabric.timer_pending = 0;
+ }
+
+ if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED))
+ iport->fabric.retry_counter++;
+
+ fabric_tov = jiffies + msecs_to_jiffies(timeout);
+ mod_timer(&iport->fabric.retry_timer, round_jiffies(fabric_tov));
+ iport->fabric.timer_pending = 1;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fabric timer is %d ", timeout);
+}
+
+static void
+fdls_start_tport_timer(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport, int timeout)
+{
+ u64 fabric_tov;
+ struct fnic *fnic = iport->fnic;
+
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid 0x%x: Canceling disc timer\n",
+ tport->fcid);
+ fnic_del_tport_timer_sync(fnic, tport);
+ tport->timer_pending = 0;
+ }
+
+ if (!(tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED))
+ tport->retry_counter++;
+
+ fabric_tov = jiffies + msecs_to_jiffies(timeout);
+ mod_timer(&tport->retry_timer, round_jiffies(fabric_tov));
+ tport->timer_pending = 1;
+}
+
+void fdls_init_plogi_frame(uint8_t *frame,
+ struct fnic_iport_s *iport)
+{
+ struct fc_std_flogi *pplogi;
+ uint8_t s_id[3];
+
+ pplogi = (struct fc_std_flogi *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pplogi = (struct fc_std_flogi) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REQ, .fh_d_id = {0xFF, 0xFF, 0xFC},
+ .fh_type = FC_TYPE_ELS, .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .els = {
+ .fl_cmd = ELS_PLOGI,
+ .fl_csp = {.sp_hi_ver = FNIC_FC_PH_VER_HI,
+ .sp_lo_ver = FNIC_FC_PH_VER_LO,
+ .sp_bb_cred = cpu_to_be16(FNIC_FC_B2B_CREDIT),
+ .sp_features = cpu_to_be16(FC_SP_FT_CIRO),
+ .sp_bb_data = cpu_to_be16(FNIC_FC_B2B_RDF_SZ),
+ .sp_tot_seq = cpu_to_be16(FNIC_FC_CONCUR_SEQS),
+ .sp_rel_off = cpu_to_be16(FNIC_FC_RO_INFO),
+ .sp_e_d_tov = cpu_to_be32(FC_DEF_E_D_TOV)},
+ .fl_cssp[2].cp_class = cpu_to_be16(FC_CPC_VALID | FC_CPC_SEQ),
+ .fl_cssp[2].cp_rdfs = cpu_to_be16(0x800),
+ .fl_cssp[2].cp_con_seq = cpu_to_be16(0xFF),
+ .fl_cssp[2].cp_open_seq = 1}
+ };
+
+ FNIC_STD_SET_NPORT_NAME(&pplogi->els.fl_wwpn, iport->wwpn);
+ FNIC_STD_SET_NODE_NAME(&pplogi->els.fl_wwnn, iport->wwnn);
+ FNIC_LOGI_SET_RDF_SIZE(pplogi->els, iport->max_payload_size);
+
+ hton24(s_id, iport->fcid);
+ FNIC_STD_SET_S_ID(pplogi->fchdr, s_id);
+}
+
+static void fdls_init_els_acc_frame(uint8_t *frame,
+ struct fnic_iport_s *iport)
+{
+ struct fc_std_els_acc_rsp *pels_acc;
+ uint8_t s_id[3];
+
+ pels_acc = (struct fc_std_els_acc_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pels_acc = (struct fc_std_els_acc_rsp) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REP,
+ .fh_type = FC_TYPE_ELS, .fh_f_ctl = {FNIC_ELS_REP_FCTL, 0, 0}},
+ .acc.la_cmd = ELS_LS_ACC,
+ };
+
+ hton24(s_id, iport->fcid);
+ FNIC_STD_SET_S_ID(pels_acc->fchdr, s_id);
+ FNIC_STD_SET_RX_ID(pels_acc->fchdr, FNIC_UNASSIGNED_RXID);
+}
+
+static void fdls_init_els_rjt_frame(uint8_t *frame,
+ struct fnic_iport_s *iport)
+{
+ struct fc_std_els_rjt_rsp *pels_rjt;
+
+ pels_rjt = (struct fc_std_els_rjt_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pels_rjt = (struct fc_std_els_rjt_rsp) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REP, .fh_type = FC_TYPE_ELS,
+ .fh_f_ctl = {FNIC_ELS_REP_FCTL, 0, 0}},
+ .rej.er_cmd = ELS_LS_RJT,
+ };
+
+ FNIC_STD_SET_RX_ID(pels_rjt->fchdr, FNIC_UNASSIGNED_RXID);
+}
+
+static void fdls_init_logo_frame(uint8_t *frame,
+ struct fnic_iport_s *iport)
+{
+ struct fc_std_logo *plogo;
+ uint8_t s_id[3];
+
+ plogo = (struct fc_std_logo *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *plogo = (struct fc_std_logo) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REQ, .fh_type = FC_TYPE_ELS,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0}},
+ .els.fl_cmd = ELS_LOGO,
+ };
+
+ hton24(s_id, iport->fcid);
+ FNIC_STD_SET_S_ID(plogo->fchdr, s_id);
+ memcpy(plogo->els.fl_n_port_id, s_id, 3);
+
+ FNIC_STD_SET_NPORT_NAME(&plogo->els.fl_n_port_wwn,
+ iport->wwpn);
+}
+
+static void fdls_init_fabric_abts_frame(uint8_t *frame,
+ struct fnic_iport_s *iport)
+{
+ struct fc_frame_header *pfabric_abts;
+
+ pfabric_abts = (struct fc_frame_header *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pfabric_abts = (struct fc_frame_header) {
+ .fh_r_ctl = FC_RCTL_BA_ABTS, /* ABTS */
+ .fh_s_id = {0x00, 0x00, 0x00},
+ .fh_cs_ctl = 0x00, .fh_type = FC_TYPE_BLS,
+ .fh_f_ctl = {FNIC_REQ_ABTS_FCTL, 0, 0}, .fh_seq_id = 0x00,
+ .fh_df_ctl = 0x00, .fh_seq_cnt = 0x0000,
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID),
+ .fh_parm_offset = 0x00000000, /* bit:0 = 0 Abort a exchange */
+ };
+}
+
+static void
+fdls_send_rscn_resp(struct fnic_iport_s *iport,
+ struct fc_frame_header *rscn_fchdr)
+{
+ uint8_t *frame;
+ struct fc_std_els_acc_rsp *pels_acc;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_acc_rsp);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send RSCN response");
+ return;
+ }
+
+ pels_acc = (struct fc_std_els_acc_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_els_acc_frame(frame, iport);
+
+ FNIC_STD_SET_D_ID(pels_acc->fchdr, rscn_fchdr->fh_s_id);
+
+ oxid = FNIC_STD_GET_OX_ID(rscn_fchdr);
+ FNIC_STD_SET_OX_ID(pels_acc->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send RSCN response with oxid: 0x%x",
+ iport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+static void
+fdls_send_logo_resp(struct fnic_iport_s *iport,
+ struct fc_frame_header *req_fchdr)
+{
+ uint8_t *frame;
+ struct fc_std_els_acc_rsp *plogo_resp;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_acc_rsp);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send LOGO response");
+ return;
+ }
+
+ plogo_resp = (struct fc_std_els_acc_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_els_acc_frame(frame, iport);
+
+ FNIC_STD_SET_D_ID(plogo_resp->fchdr, req_fchdr->fh_s_id);
+
+ oxid = FNIC_STD_GET_OX_ID(req_fchdr);
+ FNIC_STD_SET_OX_ID(plogo_resp->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send LOGO response with oxid: 0x%x",
+ iport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+void
+fdls_send_tport_abts(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport)
+{
+ uint8_t *frame;
+ uint8_t s_id[3];
+ uint8_t d_id[3];
+ struct fnic *fnic = iport->fnic;
+ struct fc_frame_header *ptport_abts;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_frame_header);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send tport ABTS");
+ return;
+ }
+
+ ptport_abts = (struct fc_frame_header *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *ptport_abts = (struct fc_frame_header) {
+ .fh_r_ctl = FC_RCTL_BA_ABTS, /* ABTS */
+ .fh_cs_ctl = 0x00, .fh_type = FC_TYPE_BLS,
+ .fh_f_ctl = {FNIC_REQ_ABTS_FCTL, 0, 0}, .fh_seq_id = 0x00,
+ .fh_df_ctl = 0x00, .fh_seq_cnt = 0x0000,
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID),
+ .fh_parm_offset = 0x00000000, /* bit:0 = 0 Abort a exchange */
+ };
+
+ hton24(s_id, iport->fcid);
+ hton24(d_id, tport->fcid);
+ FNIC_STD_SET_S_ID(*ptport_abts, s_id);
+ FNIC_STD_SET_D_ID(*ptport_abts, d_id);
+ tport->flags |= FNIC_FDLS_TGT_ABORT_ISSUED;
+
+ FNIC_STD_SET_OX_ID(*ptport_abts, tport->active_oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send tport abts: tport->state: %d ",
+ iport->fcid, tport->state);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_tport_timer(iport, tport, 2 * iport->e_d_tov);
+}
+static void fdls_send_fabric_abts(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ uint8_t s_id[3];
+ uint8_t d_id[3];
+ struct fnic *fnic = iport->fnic;
+ struct fc_frame_header *pfabric_abts;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_frame_header);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send fabric ABTS");
+ return;
+ }
+
+ pfabric_abts = (struct fc_frame_header *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_fabric_abts_frame(frame, iport);
+
+ hton24(s_id, iport->fcid);
+
+ switch (iport->fabric.state) {
+ case FDLS_STATE_FABRIC_LOGO:
+ hton24(d_id, FC_FID_FLOGI);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_FABRIC_FLOGI:
+ hton24(d_id, FC_FID_FLOGI);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_FABRIC_PLOGI:
+ FNIC_STD_SET_S_ID(*pfabric_abts, s_id);
+ hton24(d_id, FC_FID_DIR_SERV);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_RPN_ID:
+ FNIC_STD_SET_S_ID(*pfabric_abts, s_id);
+ hton24(d_id, FC_FID_DIR_SERV);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_SCR:
+ FNIC_STD_SET_S_ID(*pfabric_abts, s_id);
+ hton24(d_id, FC_FID_FCTRL);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_REGISTER_FC4_TYPES:
+ FNIC_STD_SET_S_ID(*pfabric_abts, s_id);
+ hton24(d_id, FC_FID_DIR_SERV);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_REGISTER_FC4_FEATURES:
+ FNIC_STD_SET_S_ID(*pfabric_abts, s_id);
+ hton24(d_id, FC_FID_DIR_SERV);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+
+ case FDLS_STATE_GPN_FT:
+ FNIC_STD_SET_S_ID(*pfabric_abts, s_id);
+ hton24(d_id, FC_FID_DIR_SERV);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+ break;
+ default:
+ return;
+ }
+
+ oxid = iport->active_oxid_fabric_req;
+ FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send fabric abts. iport->fabric.state: %d oxid: 0x%x",
+ iport->fcid, iport->fabric.state, oxid);
+
+ iport->fabric.flags |= FNIC_FDLS_FABRIC_ABORT_ISSUED;
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+ iport->fabric.timer_pending = 1;
+}
+
+static void fdls_send_fdmi_abts(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ uint8_t d_id[3];
+ struct fnic *fnic = iport->fnic;
+ struct fc_frame_header *pfabric_abts;
+ unsigned long fdmi_tov;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_frame_header);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send FDMI ABTS");
+ return;
+ }
+
+ pfabric_abts = (struct fc_frame_header *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_fabric_abts_frame(frame, iport);
+
+ hton24(d_id, FC_FID_MGMT_SERV);
+ FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
+
+ if (iport->fabric.fdmi_pending & FDLS_FDMI_PLOGI_PENDING) {
+ oxid = iport->active_oxid_fdmi_plogi;
+ FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ } else {
+ if (iport->fabric.fdmi_pending & FDLS_FDMI_REG_HBA_PENDING) {
+ oxid = iport->active_oxid_fdmi_rhba;
+ FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ }
+ if (iport->fabric.fdmi_pending & FDLS_FDMI_RPA_PENDING) {
+ oxid = iport->active_oxid_fdmi_rpa;
+ FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ }
+ }
+
+ fdmi_tov = jiffies + msecs_to_jiffies(2 * iport->e_d_tov);
+ mod_timer(&iport->fabric.fdmi_timer, round_jiffies(fdmi_tov));
+ iport->fabric.fdmi_pending |= FDLS_FDMI_ABORT_PENDING;
+}
+
+static void fdls_send_fabric_flogi(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_flogi *pflogi;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_flogi);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send FLOGI");
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ pflogi = (struct fc_std_flogi *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pflogi = (struct fc_std_flogi) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REQ, .fh_d_id = {0xFF, 0xFF, 0xFE},
+ .fh_type = FC_TYPE_ELS, .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .els.fl_cmd = ELS_FLOGI,
+ .els.fl_csp = {.sp_hi_ver = FNIC_FC_PH_VER_HI,
+ .sp_lo_ver = FNIC_FC_PH_VER_LO,
+ .sp_bb_cred = cpu_to_be16(FNIC_FC_B2B_CREDIT),
+ .sp_bb_data = cpu_to_be16(FNIC_FC_B2B_RDF_SZ)},
+ .els.fl_cssp[2].cp_class = cpu_to_be16(FC_CPC_VALID | FC_CPC_SEQ)
+ };
+
+ FNIC_STD_SET_NPORT_NAME(&pflogi->els.fl_wwpn, iport->wwpn);
+ FNIC_STD_SET_NODE_NAME(&pflogi->els.fl_wwnn, iport->wwnn);
+ FNIC_LOGI_SET_RDF_SIZE(pflogi->els, iport->max_payload_size);
+ FNIC_LOGI_SET_R_A_TOV(pflogi->els, iport->r_a_tov);
+ FNIC_LOGI_SET_E_D_TOV(pflogi->els, iport->e_d_tov);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_FLOGI,
+ &iport->active_oxid_fabric_req);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send FLOGI",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(pflogi->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send fabric FLOGI with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ atomic64_inc(&iport->iport_stats.fabric_flogi_sent);
+err_out:
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+static void fdls_send_fabric_plogi(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_flogi *pplogi;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_flogi);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send PLOGI");
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ pplogi = (struct fc_std_flogi *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_plogi_frame(frame, iport);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_PLOGI,
+ &iport->active_oxid_fabric_req);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send fabric PLOGI",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(pplogi->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send fabric PLOGI with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ atomic64_inc(&iport->iport_stats.fabric_plogi_sent);
+
+err_out:
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+static void fdls_send_fdmi_plogi(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_flogi *pplogi;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_flogi);
+ uint8_t d_id[3];
+ u64 fdmi_tov;
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send FDMI PLOGI");
+ goto err_out;
+ }
+
+ pplogi = (struct fc_std_flogi *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_plogi_frame(frame, iport);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FDMI_PLOGI,
+ &iport->active_oxid_fdmi_plogi);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send FDMI PLOGI",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(pplogi->fchdr, oxid);
+
+ hton24(d_id, FC_FID_MGMT_SERV);
+ FNIC_STD_SET_D_ID(pplogi->fchdr, d_id);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send FDMI PLOGI with oxid: 0x%x",
+ iport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+err_out:
+ fdmi_tov = jiffies + msecs_to_jiffies(2 * iport->e_d_tov);
+ mod_timer(&iport->fabric.fdmi_timer, round_jiffies(fdmi_tov));
+ iport->fabric.fdmi_pending = FDLS_FDMI_PLOGI_PENDING;
+}
+
+static void fdls_send_rpn_id(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_rpn_id *prpn_id;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_rpn_id);
+ uint8_t fcid[3];
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send RPN_ID");
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ prpn_id = (struct fc_std_rpn_id *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *prpn_id = (struct fc_std_rpn_id) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
+ .fh_d_id = {0xFF, 0xFF, 0xFC}, .fh_type = FC_TYPE_CT,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .fc_std_ct_hdr = {.ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_DIR,
+ .ct_fs_subtype = FC_NS_SUBTYPE,
+ .ct_cmd = cpu_to_be16(FC_NS_RPN_ID)}
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(prpn_id->fchdr, fcid);
+
+ FNIC_STD_SET_PORT_ID(prpn_id->rpn_id, fcid);
+ FNIC_STD_SET_PORT_NAME(prpn_id->rpn_id, iport->wwpn);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_RPN,
+ &iport->active_oxid_fabric_req);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send RPN_ID",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(prpn_id->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send RPN ID with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+err_out:
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+static void fdls_send_scr(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_scr *pscr;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_scr);
+ uint8_t fcid[3];
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send SCR");
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ pscr = (struct fc_std_scr *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pscr = (struct fc_std_scr) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REQ,
+ .fh_d_id = {0xFF, 0xFF, 0xFD}, .fh_type = FC_TYPE_ELS,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .scr = {.scr_cmd = ELS_SCR,
+ .scr_reg_func = ELS_SCRF_FULL}
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(pscr->fchdr, fcid);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_SCR,
+ &iport->active_oxid_fabric_req);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send SCR",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(pscr->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send SCR with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ atomic64_inc(&iport->iport_stats.fabric_scr_sent);
+
+err_out:
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+static void fdls_send_gpn_ft(struct fnic_iport_s *iport, int fdls_state)
+{
+ uint8_t *frame;
+ struct fc_std_gpn_ft *pgpn_ft;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_gpn_ft);
+ uint8_t fcid[3];
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send GPN FT");
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ pgpn_ft = (struct fc_std_gpn_ft *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pgpn_ft = (struct fc_std_gpn_ft) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
+ .fh_d_id = {0xFF, 0xFF, 0xFC}, .fh_type = FC_TYPE_CT,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .fc_std_ct_hdr = {.ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_DIR,
+ .ct_fs_subtype = FC_NS_SUBTYPE,
+ .ct_cmd = cpu_to_be16(FC_NS_GPN_FT)},
+ .gpn_ft.fn_fc4_type = 0x08
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(pgpn_ft->fchdr, fcid);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_GPN_FT,
+ &iport->active_oxid_fabric_req);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send GPN FT",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ iport->fabric.flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(pgpn_ft->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send GPN FT with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+err_out:
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+ fdls_set_state((&iport->fabric), fdls_state);
+}
+
+static void
+fdls_send_tgt_adisc(struct fnic_iport_s *iport, struct fnic_tport_s *tport)
+{
+ uint8_t *frame;
+ struct fc_std_els_adisc *padisc;
+ uint8_t s_id[3];
+ uint8_t d_id[3];
+ uint16_t oxid;
+ struct fnic *fnic = iport->fnic;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_adisc);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send TGT ADISC");
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ padisc = (struct fc_std_els_adisc *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+
+ hton24(s_id, iport->fcid);
+ hton24(d_id, tport->fcid);
+ memcpy(padisc->els.adisc_port_id, s_id, 3);
+ FNIC_STD_SET_S_ID(padisc->fchdr, s_id);
+ FNIC_STD_SET_D_ID(padisc->fchdr, d_id);
+
+ FNIC_STD_SET_F_CTL(padisc->fchdr, FNIC_ELS_REQ_FCTL << 16);
+ FNIC_STD_SET_R_CTL(padisc->fchdr, FC_RCTL_ELS_REQ);
+ FNIC_STD_SET_TYPE(padisc->fchdr, FC_TYPE_ELS);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_TGT_ADISC, &tport->active_oxid);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send TGT ADISC",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(padisc->fchdr, oxid);
+ FNIC_STD_SET_RX_ID(padisc->fchdr, FNIC_UNASSIGNED_RXID);
+
+ tport->flags &= ~FNIC_FDLS_TGT_ABORT_ISSUED;
+
+ FNIC_STD_SET_NPORT_NAME(&padisc->els.adisc_wwpn,
+ iport->wwpn);
+ FNIC_STD_SET_NODE_NAME(&padisc->els.adisc_wwnn,
+ iport->wwnn);
+
+ padisc->els.adisc_cmd = ELS_ADISC;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send ADISC to tgt fcid: 0x%x",
+ iport->fcid, tport->fcid);
+
+ atomic64_inc(&iport->iport_stats.tport_adisc_sent);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+err_out:
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_tport_timer(iport, tport, 2 * iport->e_d_tov);
+}
+
+bool fdls_delete_tport(struct fnic_iport_s *iport, struct fnic_tport_s *tport)
+{
+ struct fnic_tport_event_s *tport_del_evt;
+ struct fnic *fnic = iport->fnic;
+
+ if ((tport->state == FDLS_TGT_STATE_OFFLINING)
+ || (tport->state == FDLS_TGT_STATE_OFFLINE)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid 0x%x: tport state is offlining/offline\n",
+ tport->fcid);
+ return false;
+ }
+
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_OFFLINING);
+ /*
+ * By setting this flag, the tport will not be seen in a look-up
+ * in an RSCN. Even if we move to multithreaded model, this tport
+ * will be destroyed and a new RSCN will have to create a new one
+ */
+ tport->flags |= FNIC_FDLS_TPORT_TERMINATING;
+
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid 0x%x: Canceling disc timer\n",
+ tport->fcid);
+ fnic_del_tport_timer_sync(fnic, tport);
+ tport->timer_pending = 0;
+ }
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ fnic_rport_exch_reset(iport->fnic, tport->fcid);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+
+ if (tport->flags & FNIC_FDLS_SCSI_REGISTERED) {
+ tport_del_evt =
+ kzalloc(sizeof(struct fnic_tport_event_s), GFP_ATOMIC);
+ if (!tport_del_evt) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Failed to allocate memory for tport fcid: 0x%0x\n",
+ tport->fcid);
+ return false;
+ }
+ tport_del_evt->event = TGT_EV_RPORT_DEL;
+ tport_del_evt->arg1 = (void *) tport;
+ list_add_tail(&tport_del_evt->links, &fnic->tport_event_list);
+ queue_work(fnic_event_queue, &fnic->tport_work);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport 0x%x not reg with scsi_transport. Freeing locally",
+ tport->fcid);
+ list_del(&tport->links);
+ kfree(tport);
+ }
+ return true;
+}
+
+static void
+fdls_send_tgt_plogi(struct fnic_iport_s *iport, struct fnic_tport_s *tport)
+{
+ uint8_t *frame;
+ struct fc_std_flogi *pplogi;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_flogi);
+ uint8_t d_id[3];
+ uint32_t timeout;
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send TGT PLOGI");
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ pplogi = (struct fc_std_flogi *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_plogi_frame(frame, iport);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_TGT_PLOGI, &tport->active_oxid);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate oxid to send PLOGI to fcid: 0x%x",
+ iport->fcid, tport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+ FNIC_STD_SET_OX_ID(pplogi->fchdr, oxid);
+
+ tport->flags &= ~FNIC_FDLS_TGT_ABORT_ISSUED;
+
+ hton24(d_id, tport->fcid);
+ FNIC_STD_SET_D_ID(pplogi->fchdr, d_id);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send tgt PLOGI to tgt: 0x%x with oxid: 0x%x",
+ iport->fcid, tport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ atomic64_inc(&iport->iport_stats.tport_plogi_sent);
+
+err_out:
+ timeout = max(2 * iport->e_d_tov, iport->plogi_timeout);
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_tport_timer(iport, tport, timeout);
+}
+
+static uint16_t
+fnic_fc_plogi_rsp_rdf(struct fnic_iport_s *iport,
+ struct fc_std_flogi *plogi_rsp)
+{
+ uint16_t b2b_rdf_size =
+ be16_to_cpu(FNIC_LOGI_RDF_SIZE(plogi_rsp->els));
+ uint16_t spc3_rdf_size =
+ be16_to_cpu(plogi_rsp->els.fl_cssp[2].cp_rdfs) & FNIC_FC_C3_RDF;
+ struct fnic *fnic = iport->fnic;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "MFS: b2b_rdf_size: 0x%x spc3_rdf_size: 0x%x",
+ b2b_rdf_size, spc3_rdf_size);
+
+ return min(b2b_rdf_size, spc3_rdf_size);
+}
+
+static void fdls_send_register_fc4_types(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_rft_id *prft_id;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_rft_id);
+ uint8_t fcid[3];
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send RFT");
+ return;
+ }
+
+ prft_id = (struct fc_std_rft_id *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *prft_id = (struct fc_std_rft_id) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
+ .fh_d_id = {0xFF, 0xFF, 0xFC}, .fh_type = FC_TYPE_CT,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .fc_std_ct_hdr = {.ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_DIR,
+ .ct_fs_subtype = FC_NS_SUBTYPE,
+ .ct_cmd = cpu_to_be16(FC_NS_RFT_ID)}
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(prft_id->fchdr, fcid);
+ FNIC_STD_SET_PORT_ID(prft_id->rft_id, fcid);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_RFT,
+ &iport->active_oxid_fabric_req);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send RFT",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(prft_id->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send RFT with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ prft_id->rft_id.fr_fts.ff_type_map[0] =
+ cpu_to_be32(1 << FC_TYPE_FCP);
+
+ prft_id->rft_id.fr_fts.ff_type_map[1] =
+ cpu_to_be32(1 << (FC_TYPE_CT % FC_NS_BPW));
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+static void fdls_send_register_fc4_features(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_rff_id *prff_id;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_rff_id);
+ uint8_t fcid[3];
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send RFF");
+ return;
+ }
+
+ prff_id = (struct fc_std_rff_id *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *prff_id = (struct fc_std_rff_id) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
+ .fh_d_id = {0xFF, 0xFF, 0xFC}, .fh_type = FC_TYPE_CT,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .fc_std_ct_hdr = {.ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_DIR,
+ .ct_fs_subtype = FC_NS_SUBTYPE,
+ .ct_cmd = cpu_to_be16(FC_NS_RFF_ID)},
+ .rff_id.fr_feat = 0x2,
+ .rff_id.fr_type = FC_TYPE_FCP
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(prff_id->fchdr, fcid);
+ FNIC_STD_SET_PORT_ID(prff_id->rff_id, fcid);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_RFF,
+ &iport->active_oxid_fabric_req);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send RFF",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(prff_id->fchdr, oxid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send RFF with oxid: 0x%x", iport->fcid,
+ oxid);
+
+ prff_id->rff_id.fr_type = FC_TYPE_FCP;
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+static void
+fdls_send_tgt_prli(struct fnic_iport_s *iport, struct fnic_tport_s *tport)
+{
+ uint8_t *frame;
+ struct fc_std_els_prli *pprli;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_prli);
+ uint8_t s_id[3];
+ uint8_t d_id[3];
+ uint32_t timeout;
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send TGT PRLI");
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ pprli = (struct fc_std_els_prli *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pprli = (struct fc_std_els_prli) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_ELS_REQ, .fh_type = FC_TYPE_ELS,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .els_prli = {.prli_cmd = ELS_PRLI,
+ .prli_spp_len = 16,
+ .prli_len = cpu_to_be16(0x14)},
+ .sp = {.spp_type = 0x08, .spp_flags = 0x0020,
+ .spp_params = cpu_to_be32(0xA2)}
+ };
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_TGT_PRLI, &tport->active_oxid);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send TGT PRLI to 0x%x",
+ iport->fcid, tport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ goto err_out;
+ }
+
+ tport->flags &= ~FNIC_FDLS_TGT_ABORT_ISSUED;
+
+ hton24(s_id, iport->fcid);
+ hton24(d_id, tport->fcid);
+
+ FNIC_STD_SET_OX_ID(pprli->fchdr, oxid);
+ FNIC_STD_SET_S_ID(pprli->fchdr, s_id);
+ FNIC_STD_SET_D_ID(pprli->fchdr, d_id);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send PRLI to tgt: 0x%x with oxid: 0x%x",
+ iport->fcid, tport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ atomic64_inc(&iport->iport_stats.tport_prli_sent);
+
+err_out:
+ timeout = max(2 * iport->e_d_tov, iport->plogi_timeout);
+ /* Even if fnic_send_fcoe_frame() fails we want to retry after timeout */
+ fdls_start_tport_timer(iport, tport, timeout);
+}
+
+/**
+ * fdls_send_fabric_logo - Send flogo to the fcf
+ * @iport: Handle to fnic iport
+ *
+ * This function does not change or check the fabric state.
+ * It the caller's responsibility to set the appropriate iport fabric
+ * state when this is called. Normally it is FDLS_STATE_FABRIC_LOGO.
+ * Currently this assumes to be called with fnic lock held.
+ */
+void fdls_send_fabric_logo(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_logo *plogo;
+ struct fnic *fnic = iport->fnic;
+ uint8_t d_id[3];
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_logo);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send fabric LOGO");
+ return;
+ }
+
+ plogo = (struct fc_std_logo *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_logo_frame(frame, iport);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_LOGO,
+ &iport->active_oxid_fabric_req);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send fabric LOGO",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(plogo->fchdr, oxid);
+
+ hton24(d_id, FC_FID_FLOGI);
+ FNIC_STD_SET_D_ID(plogo->fchdr, d_id);
+
+ iport->fabric.flags &= ~FNIC_FDLS_FABRIC_ABORT_ISSUED;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send fabric LOGO with oxid: 0x%x",
+ iport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+ fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
+}
+
+/**
+ * fdls_tgt_logout - Send plogo to the remote port
+ * @iport: Handle to fnic iport
+ * @tport: Handle to remote port
+ *
+ * This function does not change or check the fabric/tport state.
+ * It the caller's responsibility to set the appropriate tport/fabric
+ * state when this is called. Normally that is fdls_tgt_state_plogo.
+ * This could be used to send plogo to nameserver process
+ * also not just target processes
+ */
+void fdls_tgt_logout(struct fnic_iport_s *iport, struct fnic_tport_s *tport)
+{
+ uint8_t *frame;
+ struct fc_std_logo *plogo;
+ struct fnic *fnic = iport->fnic;
+ uint8_t d_id[3];
+ uint16_t oxid;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_logo);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send fabric LOGO");
+ return;
+ }
+
+ plogo = (struct fc_std_logo *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_logo_frame(frame, iport);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_TGT_LOGO, &tport->active_oxid);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send tgt LOGO",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(plogo->fchdr, oxid);
+
+ hton24(d_id, tport->fcid);
+ FNIC_STD_SET_D_ID(plogo->fchdr, d_id);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send tgt LOGO with oxid: 0x%x",
+ iport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+
+ atomic64_inc(&iport->iport_stats.tport_logo_sent);
+}
+
+static void fdls_tgt_discovery_start(struct fnic_iport_s *iport)
+{
+ struct fnic_tport_s *tport, *next;
+ u32 old_link_down_cnt = iport->fnic->link_down_cnt;
+ struct fnic *fnic = iport->fnic;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Starting FDLS target discovery", iport->fcid);
+
+ list_for_each_entry_safe(tport, next, &iport->tport_list, links) {
+ if ((old_link_down_cnt != iport->fnic->link_down_cnt)
+ || (iport->state != FNIC_IPORT_STATE_READY)) {
+ break;
+ }
+ /* if we marked the tport as deleted due to GPN_FT
+ * We should not send ADISC anymore
+ */
+ if ((tport->state == FDLS_TGT_STATE_OFFLINING) ||
+ (tport->state == FDLS_TGT_STATE_OFFLINE))
+ continue;
+
+ /* For tports which have received RSCN */
+ if (tport->flags & FNIC_FDLS_TPORT_SEND_ADISC) {
+ tport->retry_counter = 0;
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_ADISC);
+ tport->flags &= ~FNIC_FDLS_TPORT_SEND_ADISC;
+ fdls_send_tgt_adisc(iport, tport);
+ continue;
+ }
+ if (fdls_get_tport_state(tport) != FDLS_TGT_STATE_INIT) {
+ /* Not a new port, skip */
+ continue;
+ }
+ tport->retry_counter = 0;
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_PLOGI);
+ fdls_send_tgt_plogi(iport, tport);
+ }
+ fdls_set_state((&iport->fabric), FDLS_STATE_TGT_DISCOVERY);
+}
+
+/*
+ * Function to restart the IT nexus if we received any out of
+ * sequence PLOGI/PRLI response from the target.
+ * The memory for the new tport structure is allocated
+ * inside fdls_create_tport and added to the iport's tport list.
+ * This will get freed later during tport_offline/linkdown
+ * or module unload. The new_tport pointer will go out of scope
+ * safely since the memory it is
+ * pointing to it will be freed later
+ */
+static void fdls_target_restart_nexus(struct fnic_tport_s *tport)
+{
+ struct fnic_iport_s *iport = tport->iport;
+ struct fnic_tport_s *new_tport = NULL;
+ uint32_t fcid;
+ uint64_t wwpn;
+ int nexus_restart_count;
+ struct fnic *fnic = iport->fnic;
+ bool retval = true;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid: 0x%x state: %d restart_count: %d",
+ tport->fcid, tport->state, tport->nexus_restart_count);
+
+ fcid = tport->fcid;
+ wwpn = tport->wwpn;
+ nexus_restart_count = tport->nexus_restart_count;
+
+ retval = fdls_delete_tport(iport, tport);
+ if (retval != true) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Error deleting tport: 0x%x", fcid);
+ return;
+ }
+
+ if (nexus_restart_count >= FNIC_TPORT_MAX_NEXUS_RESTART) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Exceeded nexus restart retries tport: 0x%x",
+ fcid);
+ return;
+ }
+
+ /*
+ * Allocate memory for the new tport and add it to
+ * iport's tport list.
+ * This memory will be freed during tport_offline/linkdown
+ * or module unload. The pointer new_tport is safe to go
+ * out of scope when this function returns, since the memory
+ * it is pointing to is guaranteed to be freed later
+ * as mentioned above.
+ */
+ new_tport = fdls_create_tport(iport, fcid, wwpn);
+ if (!new_tport) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Error creating new tport: 0x%x", fcid);
+ return;
+ }
+
+ new_tport->nexus_restart_count = nexus_restart_count + 1;
+ fdls_send_tgt_plogi(iport, new_tport);
+ fdls_set_tport_state(new_tport, FDLS_TGT_STATE_PLOGI);
+}
+
+struct fnic_tport_s *fnic_find_tport_by_fcid(struct fnic_iport_s *iport,
+ uint32_t fcid)
+{
+ struct fnic_tport_s *tport, *next;
+
+ list_for_each_entry_safe(tport, next, &(iport->tport_list), links) {
+ if ((tport->fcid == fcid)
+ && !(tport->flags & FNIC_FDLS_TPORT_TERMINATING))
+ return tport;
+ }
+ return NULL;
+}
+
+static struct fnic_tport_s *fdls_create_tport(struct fnic_iport_s *iport,
+ uint32_t fcid, uint64_t wwpn)
+{
+ struct fnic_tport_s *tport;
+ struct fnic *fnic = iport->fnic;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS create tport: fcid: 0x%x wwpn: 0x%llx", fcid, wwpn);
+
+ tport = kzalloc(sizeof(struct fnic_tport_s), GFP_ATOMIC);
+ if (!tport) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Memory allocation failure while creating tport: 0x%x\n",
+ fcid);
+ return NULL;
+ }
+
+ tport->max_payload_size = FNIC_FCOE_MAX_FRAME_SZ;
+ tport->r_a_tov = FC_DEF_R_A_TOV;
+ tport->e_d_tov = FC_DEF_E_D_TOV;
+ tport->fcid = fcid;
+ tport->wwpn = wwpn;
+ tport->iport = iport;
+
+ FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Need to setup tport timer callback");
+
+ timer_setup(&tport->retry_timer, fdls_tport_timer_callback, 0);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Added tport 0x%x", tport->fcid);
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_INIT);
+ list_add_tail(&tport->links, &iport->tport_list);
+ atomic_set(&tport->in_flight, 0);
+ return tport;
+}
+
+struct fnic_tport_s *fnic_find_tport_by_wwpn(struct fnic_iport_s *iport,
+ uint64_t wwpn)
+{
+ struct fnic_tport_s *tport, *next;
+
+ list_for_each_entry_safe(tport, next, &(iport->tport_list), links) {
+ if ((tport->wwpn == wwpn)
+ && !(tport->flags & FNIC_FDLS_TPORT_TERMINATING))
+ return tport;
+ }
+ return NULL;
+}
+
+static void
+fnic_fdmi_attr_set(void *attr_start, u16 type, u16 len,
+ void *data, u32 *off)
+{
+ u16 size = len + FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+ struct fc_fdmi_attr_entry *fdmi_attr = (struct fc_fdmi_attr_entry *)
+ ((u8 *)attr_start + *off);
+
+ put_unaligned_be16(type, &fdmi_attr->type);
+ put_unaligned_be16(size, &fdmi_attr->len);
+ memcpy(fdmi_attr->value, data, len);
+ *off += size;
+}
+
+static void fdls_fdmi_register_hba(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_fdmi_rhba *prhba;
+ struct fc_fdmi_attr_entry *fdmi_attr;
+ uint8_t fcid[3];
+ int err;
+ struct fnic *fnic = iport->fnic;
+ struct vnic_devcmd_fw_info *fw_info = NULL;
+ uint16_t oxid;
+ u32 attr_off_bytes, len;
+ u8 data[64];
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET;
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send FDMI RHBA");
+ return;
+ }
+
+ prhba = (struct fc_std_fdmi_rhba *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *prhba = (struct fc_std_fdmi_rhba) {
+ .fchdr = {
+ .fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
+ .fh_d_id = {0xFF, 0XFF, 0XFA},
+ .fh_type = FC_TYPE_CT,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)
+ },
+ .fc_std_ct_hdr = {
+ .ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_MGMT,
+ .ct_fs_subtype = FC_FDMI_SUBTYPE,
+ .ct_cmd = cpu_to_be16(FC_FDMI_RHBA)
+ },
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(prhba->fchdr, fcid);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FDMI_RHBA,
+ &iport->active_oxid_fdmi_rhba);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send FDMI RHBA",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(prhba->fchdr, oxid);
+
+ put_unaligned_be64(iport->wwpn, &prhba->rhba.hbaid.id);
+ put_unaligned_be32(FNIC_FDMI_NUM_PORTS, &prhba->rhba.port.numport);
+ put_unaligned_be64(iport->wwpn, &prhba->rhba.port.port[0].portname);
+ put_unaligned_be32(FNIC_FDMI_NUM_HBA_ATTRS,
+ &prhba->rhba.hba_attrs.numattrs);
+
+ fdmi_attr = prhba->rhba.hba_attrs.attr;
+ attr_off_bytes = 0;
+
+ put_unaligned_be64(iport->wwnn, data);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_NODE_NAME,
+ FNIC_FDMI_NN_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "NN set, off=%d", attr_off_bytes);
+
+ strscpy_pad(data, FNIC_FDMI_MANUFACTURER, FNIC_FDMI_MANU_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MANUFACTURER,
+ FNIC_FDMI_MANU_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "MFG set <%s>, off=%d", data, attr_off_bytes);
+
+ err = vnic_dev_fw_info(fnic->vdev, &fw_info);
+ if (!err) {
+ strscpy_pad(data, fw_info->hw_serial_number,
+ FNIC_FDMI_SERIAL_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_SERIAL_NUMBER,
+ FNIC_FDMI_SERIAL_LEN, data, &attr_off_bytes);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "SERIAL set <%s>, off=%d", data, attr_off_bytes);
+
+ }
+
+ if (fnic->subsys_desc_len >= FNIC_FDMI_MODEL_LEN)
+ fnic->subsys_desc_len = FNIC_FDMI_MODEL_LEN - 1;
+ strscpy_pad(data, fnic->subsys_desc, FNIC_FDMI_MODEL_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MODEL, FNIC_FDMI_MODEL_LEN,
+ data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "MODEL set <%s>, off=%d", data, attr_off_bytes);
+
+ strscpy_pad(data, FNIC_FDMI_MODEL_DESCRIPTION, FNIC_FDMI_MODEL_DES_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MODEL_DES,
+ FNIC_FDMI_MODEL_DES_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "MODEL_DESC set <%s>, off=%d", data, attr_off_bytes);
+
+ if (!err) {
+ strscpy_pad(data, fw_info->hw_version, FNIC_FDMI_HW_VER_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_HARDWARE_VERSION,
+ FNIC_FDMI_HW_VER_LEN, data, &attr_off_bytes);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "HW_VER set <%s>, off=%d", data, attr_off_bytes);
+
+ }
+
+ strscpy_pad(data, DRV_VERSION, FNIC_FDMI_DR_VER_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_DRIVER_VERSION,
+ FNIC_FDMI_DR_VER_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "DRV_VER set <%s>, off=%d", data, attr_off_bytes);
+
+ strscpy_pad(data, "N/A", FNIC_FDMI_ROM_VER_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_ROM_VERSION,
+ FNIC_FDMI_ROM_VER_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ROM_VER set <%s>, off=%d", data, attr_off_bytes);
+
+ if (!err) {
+ strscpy_pad(data, fw_info->fw_version, FNIC_FDMI_FW_VER_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_FIRMWARE_VERSION,
+ FNIC_FDMI_FW_VER_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FW_VER set <%s>, off=%d", data, attr_off_bytes);
+ }
+
+ len = sizeof(struct fc_std_fdmi_rhba) + attr_off_bytes;
+ frame_size += len;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send FDMI RHBA with oxid: 0x%x fs: %d", iport->fcid,
+ oxid, frame_size);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ iport->fabric.fdmi_pending |= FDLS_FDMI_REG_HBA_PENDING;
+}
+
+static void fdls_fdmi_register_pa(struct fnic_iport_s *iport)
+{
+ uint8_t *frame;
+ struct fc_std_fdmi_rpa *prpa;
+ struct fc_fdmi_attr_entry *fdmi_attr;
+ uint8_t fcid[3];
+ struct fnic *fnic = iport->fnic;
+ u32 port_speed_bm;
+ u32 port_speed = vnic_dev_port_speed(fnic->vdev);
+ uint16_t oxid;
+ u32 attr_off_bytes, len;
+ u8 tmp_data[16], data[64];
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET;
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send FDMI RPA");
+ return;
+ }
+
+ prpa = (struct fc_std_fdmi_rpa *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *prpa = (struct fc_std_fdmi_rpa) {
+ .fchdr = {
+ .fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
+ .fh_d_id = {0xFF, 0xFF, 0xFA},
+ .fh_type = FC_TYPE_CT,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)
+ },
+ .fc_std_ct_hdr = {
+ .ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_MGMT,
+ .ct_fs_subtype = FC_FDMI_SUBTYPE,
+ .ct_cmd = cpu_to_be16(FC_FDMI_RPA)
+ },
+ };
+
+ hton24(fcid, iport->fcid);
+ FNIC_STD_SET_S_ID(prpa->fchdr, fcid);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FDMI_RPA,
+ &iport->active_oxid_fdmi_rpa);
+
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate OXID to send FDMI RPA",
+ iport->fcid);
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(prpa->fchdr, oxid);
+
+ put_unaligned_be64(iport->wwpn, &prpa->rpa.port.portname);
+ put_unaligned_be32(FNIC_FDMI_NUM_PORT_ATTRS,
+ &prpa->rpa.hba_attrs.numattrs);
+
+ /* MDS does not support GIGE speed.
+ * Bit shift standard definitions from scsi_transport_fc.h to
+ * match FC spec.
+ */
+ switch (port_speed) {
+ case DCEM_PORTSPEED_10G:
+ case DCEM_PORTSPEED_20G:
+ /* There is no bit for 20G */
+ port_speed_bm = FC_PORTSPEED_10GBIT << PORT_SPEED_BIT_14;
+ break;
+ case DCEM_PORTSPEED_25G:
+ port_speed_bm = FC_PORTSPEED_25GBIT << PORT_SPEED_BIT_8;
+ break;
+ case DCEM_PORTSPEED_40G:
+ case DCEM_PORTSPEED_4x10G:
+ port_speed_bm = FC_PORTSPEED_40GBIT << PORT_SPEED_BIT_9;
+ break;
+ case DCEM_PORTSPEED_100G:
+ port_speed_bm = FC_PORTSPEED_100GBIT << PORT_SPEED_BIT_8;
+ break;
+ default:
+ port_speed_bm = FC_PORTSPEED_1GBIT << PORT_SPEED_BIT_15;
+ break;
+ }
+ attr_off_bytes = 0;
+
+ fdmi_attr = prpa->rpa.hba_attrs.attr;
+
+ put_unaligned_be64(iport->wwnn, data);
+
+ memset(data, 0, FNIC_FDMI_FC4_LEN);
+ data[2] = 1;
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_FC4_TYPES,
+ FNIC_FDMI_FC4_LEN, data, &attr_off_bytes);
+
+ put_unaligned_be32(port_speed_bm, data);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_SUPPORTED_SPEEDS,
+ FNIC_FDMI_SUPP_SPEED_LEN, data, &attr_off_bytes);
+
+ put_unaligned_be32(port_speed_bm, data);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_CURRENT_SPEED,
+ FNIC_FDMI_CUR_SPEED_LEN, data, &attr_off_bytes);
+
+ put_unaligned_be32(FNIC_FDMI_MFS, data);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MAX_FRAME_SIZE,
+ FNIC_FDMI_MFS_LEN, data, &attr_off_bytes);
+
+ snprintf(tmp_data, FNIC_FDMI_OS_NAME_LEN - 1, "host%d",
+ fnic->host->host_no);
+ strscpy_pad(data, tmp_data, FNIC_FDMI_OS_NAME_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_OS_NAME,
+ FNIC_FDMI_OS_NAME_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "OS name set <%s>, off=%d", data, attr_off_bytes);
+
+ sprintf(fc_host_system_hostname(fnic->host), "%s", utsname()->nodename);
+ strscpy_pad(data, fc_host_system_hostname(fnic->host),
+ FNIC_FDMI_HN_LEN);
+ fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_HOST_NAME,
+ FNIC_FDMI_HN_LEN, data, &attr_off_bytes);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Host name set <%s>, off=%d", data, attr_off_bytes);
+
+ len = sizeof(struct fc_std_fdmi_rpa) + attr_off_bytes;
+ frame_size += len;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send FDMI RPA with oxid: 0x%x fs: %d", iport->fcid,
+ oxid, frame_size);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+ iport->fabric.fdmi_pending |= FDLS_FDMI_RPA_PENDING;
+}
+
+void fdls_fabric_timer_callback(struct timer_list *t)
+{
+ struct fnic_fdls_fabric_s *fabric = from_timer(fabric, t, retry_timer);
+ struct fnic_iport_s *iport =
+ container_of(fabric, struct fnic_iport_s, fabric);
+ struct fnic *fnic = iport->fnic;
+ unsigned long flags;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tp: %d fab state: %d fab retry counter: %d max_flogi_retries: %d",
+ iport->fabric.timer_pending, iport->fabric.state,
+ iport->fabric.retry_counter, iport->max_flogi_retries);
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+
+ if (!iport->fabric.timer_pending) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+
+ if (iport->fabric.del_timer_inprogress) {
+ iport->fabric.del_timer_inprogress = 0;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fabric_del_timer inprogress(%d). Skip timer cb",
+ iport->fabric.del_timer_inprogress);
+ return;
+ }
+
+ iport->fabric.timer_pending = 0;
+
+ /* The fabric state indicates which frames have time out, and we retry */
+ switch (iport->fabric.state) {
+ case FDLS_STATE_FABRIC_FLOGI:
+ /* Flogi received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < iport->max_flogi_retries)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_fabric_flogi(iport);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED)) {
+ /* Flogi has time out 2*ed_tov send abts */
+ fdls_send_fabric_abts(iport);
+ } else {
+ /* ABTS has timed out
+ * Mark the OXID to be freed after 2 * r_a_tov and retry the req
+ */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ if (iport->fabric.retry_counter < iport->max_flogi_retries) {
+ iport->fabric.flags &= ~FNIC_FDLS_FABRIC_ABORT_ISSUED;
+ fdls_send_fabric_flogi(iport);
+ } else
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Exceeded max FLOGI retries");
+ }
+ break;
+ case FDLS_STATE_FABRIC_PLOGI:
+ /* Plogi received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < iport->max_plogi_retries)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_fabric_plogi(iport);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED)) {
+ /* Plogi has timed out 2*ed_tov send abts */
+ fdls_send_fabric_abts(iport);
+ } else {
+ /* ABTS has timed out
+ * Mark the OXID to be freed after 2 * r_a_tov and retry the req
+ */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ if (iport->fabric.retry_counter < iport->max_plogi_retries) {
+ iport->fabric.flags &= ~FNIC_FDLS_FABRIC_ABORT_ISSUED;
+ fdls_send_fabric_plogi(iport);
+ } else
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Exceeded max PLOGI retries");
+ }
+ break;
+ case FDLS_STATE_RPN_ID:
+ /* Rpn_id received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < FDLS_RETRY_COUNT)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_rpn_id(iport);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED))
+ /* RPN has timed out. Send abts */
+ fdls_send_fabric_abts(iport);
+ else {
+ /* ABTS has timed out */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ fnic_fdls_start_plogi(iport); /* go back to fabric Plogi */
+ }
+ break;
+ case FDLS_STATE_SCR:
+ /* scr received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < FDLS_RETRY_COUNT)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_scr(iport);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED))
+ /* scr has timed out. Send abts */
+ fdls_send_fabric_abts(iport);
+ else {
+ /* ABTS has timed out */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ABTS timed out. Starting PLOGI: %p", iport);
+ fnic_fdls_start_plogi(iport);
+ }
+ break;
+ case FDLS_STATE_REGISTER_FC4_TYPES:
+ /* scr received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < FDLS_RETRY_COUNT)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_register_fc4_types(iport);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED)) {
+ /* RFT_ID timed out send abts */
+ fdls_send_fabric_abts(iport);
+ } else {
+ /* ABTS has timed out */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ABTS timed out. Starting PLOGI: %p", iport);
+ fnic_fdls_start_plogi(iport); /* go back to fabric Plogi */
+ }
+ break;
+ case FDLS_STATE_REGISTER_FC4_FEATURES:
+ /* scr received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < FDLS_RETRY_COUNT)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_register_fc4_features(iport);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED))
+ /* SCR has timed out. Send abts */
+ fdls_send_fabric_abts(iport);
+ else {
+ /* ABTS has timed out */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ABTS timed out. Starting PLOGI %p", iport);
+ fnic_fdls_start_plogi(iport); /* go back to fabric Plogi */
+ }
+ break;
+ case FDLS_STATE_RSCN_GPN_FT:
+ case FDLS_STATE_SEND_GPNFT:
+ case FDLS_STATE_GPN_FT:
+ /* GPN_FT received a LS_RJT with busy we retry from here */
+ if ((iport->fabric.flags & FNIC_FDLS_RETRY_FRAME)
+ && (iport->fabric.retry_counter < FDLS_RETRY_COUNT)) {
+ iport->fabric.flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_gpn_ft(iport, iport->fabric.state);
+ } else if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED)) {
+ /* gpn_ft has timed out. Send abts */
+ fdls_send_fabric_abts(iport);
+ } else {
+ /* ABTS has timed out */
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ if (iport->fabric.retry_counter < FDLS_RETRY_COUNT) {
+ fdls_send_gpn_ft(iport, iport->fabric.state);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ABTS timeout for fabric GPN_FT. Check name server: %p",
+ iport);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+}
+
+void fdls_fdmi_timer_callback(struct timer_list *t)
+{
+ struct fnic_fdls_fabric_s *fabric = from_timer(fabric, t, fdmi_timer);
+ struct fnic_iport_s *iport =
+ container_of(fabric, struct fnic_iport_s, fabric);
+ struct fnic *fnic = iport->fnic;
+ unsigned long flags;
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
+
+ if (!iport->fabric.fdmi_pending) {
+ /* timer expired after fdmi responses received. */
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
+
+ /* if not abort pending, send an abort */
+ if (!(iport->fabric.fdmi_pending & FDLS_FDMI_ABORT_PENDING)) {
+ fdls_send_fdmi_abts(iport);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
+
+ /* ABTS pending for an active fdmi request that is pending.
+ * That means FDMI ABTS timed out
+ * Schedule to free the OXID after 2*r_a_tov and proceed
+ */
+ if (iport->fabric.fdmi_pending & FDLS_FDMI_PLOGI_PENDING) {
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fdmi_plogi);
+ } else {
+ if (iport->fabric.fdmi_pending & FDLS_FDMI_REG_HBA_PENDING)
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fdmi_rhba);
+ if (iport->fabric.fdmi_pending & FDLS_FDMI_RPA_PENDING)
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fdmi_rpa);
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
+
+ iport->fabric.fdmi_pending = 0;
+ /* If max retries not exhaused, start over from fdmi plogi */
+ if (iport->fabric.fdmi_retry < FDLS_FDMI_MAX_RETRY) {
+ iport->fabric.fdmi_retry++;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "retry fdmi timer %d", iport->fabric.fdmi_retry);
+ fdls_send_fdmi_plogi(iport);
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+}
+
+static void fdls_send_delete_tport_msg(struct fnic_tport_s *tport)
+{
+ struct fnic_iport_s *iport = (struct fnic_iport_s *) tport->iport;
+ struct fnic *fnic = iport->fnic;
+ struct fnic_tport_event_s *tport_del_evt;
+
+ tport_del_evt = kzalloc(sizeof(struct fnic_tport_event_s), GFP_ATOMIC);
+ if (!tport_del_evt) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Failed to allocate memory for tport event fcid: 0x%x",
+ tport->fcid);
+ return;
+ }
+ tport_del_evt->event = TGT_EV_TPORT_DELETE;
+ tport_del_evt->arg1 = (void *) tport;
+ list_add_tail(&tport_del_evt->links, &fnic->tport_event_list);
+ queue_work(fnic_event_queue, &fnic->tport_work);
+}
+
+static void fdls_tport_timer_callback(struct timer_list *t)
+{
+ struct fnic_tport_s *tport = from_timer(tport, t, retry_timer);
+ struct fnic_iport_s *iport = (struct fnic_iport_s *) tport->iport;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+ unsigned long flags;
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if (!tport->timer_pending) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+
+ if (tport->del_timer_inprogress) {
+ tport->del_timer_inprogress = 0;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport_del_timer inprogress. Skip timer cb tport fcid: 0x%x\n",
+ tport->fcid);
+ return;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid: 0x%x timer pending: %d state: %d retry counter: %d",
+ tport->fcid, tport->timer_pending, tport->state,
+ tport->retry_counter);
+
+ tport->timer_pending = 0;
+ oxid = tport->active_oxid;
+
+ /* We retry plogi/prli/adisc frames depending on the tport state */
+ switch (tport->state) {
+ case FDLS_TGT_STATE_PLOGI:
+ /* PLOGI frame received a LS_RJT with busy, we retry from here */
+ if ((tport->flags & FNIC_FDLS_RETRY_FRAME)
+ && (tport->retry_counter < iport->max_plogi_retries)) {
+ tport->flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_tgt_plogi(iport, tport);
+ } else if (!(tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)) {
+ /* Plogi frame has timed out, send abts */
+ fdls_send_tport_abts(iport, tport);
+ } else if (tport->retry_counter < iport->max_plogi_retries) {
+ /*
+ * ABTS has timed out
+ */
+ fdls_schedule_oxid_free(iport, &tport->active_oxid);
+ fdls_send_tgt_plogi(iport, tport);
+ } else {
+ /* exceeded plogi retry count */
+ fdls_schedule_oxid_free(iport, &tport->active_oxid);
+ fdls_send_delete_tport_msg(tport);
+ }
+ break;
+ case FDLS_TGT_STATE_PRLI:
+ /* PRLI received a LS_RJT with busy , hence we retry from here */
+ if ((tport->flags & FNIC_FDLS_RETRY_FRAME)
+ && (tport->retry_counter < FDLS_RETRY_COUNT)) {
+ tport->flags &= ~FNIC_FDLS_RETRY_FRAME;
+ fdls_send_tgt_prli(iport, tport);
+ } else if (!(tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)) {
+ /* PRLI has time out, send abts */
+ fdls_send_tport_abts(iport, tport);
+ } else {
+ /* ABTS has timed out for prli, we go back to PLOGI */
+ fdls_schedule_oxid_free(iport, &tport->active_oxid);
+ fdls_send_tgt_plogi(iport, tport);
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_PLOGI);
+ }
+ break;
+ case FDLS_TGT_STATE_ADISC:
+ /* ADISC timed out send an ABTS */
+ if (!(tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)) {
+ fdls_send_tport_abts(iport, tport);
+ } else if ((tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)
+ && (tport->retry_counter < FDLS_RETRY_COUNT)) {
+ /*
+ * ABTS has timed out
+ */
+ fdls_schedule_oxid_free(iport, &tport->active_oxid);
+ fdls_send_tgt_adisc(iport, tport);
+ } else {
+ /* exceeded retry count */
+ fdls_schedule_oxid_free(iport, &tport->active_oxid);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ADISC not responding. Deleting target port: 0x%x",
+ tport->fcid);
+ fdls_send_delete_tport_msg(tport);
+ }
+ break;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "oxid: 0x%x Unknown tport state: 0x%x", oxid, tport->state);
+ break;
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+}
+
+static void fnic_fdls_start_flogi(struct fnic_iport_s *iport)
+{
+ iport->fabric.retry_counter = 0;
+ fdls_send_fabric_flogi(iport);
+ fdls_set_state((&iport->fabric), FDLS_STATE_FABRIC_FLOGI);
+ iport->fabric.flags = 0;
+}
+
+static void fnic_fdls_start_plogi(struct fnic_iport_s *iport)
+{
+ iport->fabric.retry_counter = 0;
+ fdls_send_fabric_plogi(iport);
+ fdls_set_state((&iport->fabric), FDLS_STATE_FABRIC_PLOGI);
+ iport->fabric.flags &= ~FNIC_FDLS_FABRIC_ABORT_ISSUED;
+
+ if ((fnic_fdmi_support == 1) && (!(iport->flags & FNIC_FDMI_ACTIVE))) {
+ /* we can do FDMI at the same time */
+ iport->fabric.fdmi_retry = 0;
+ timer_setup(&iport->fabric.fdmi_timer, fdls_fdmi_timer_callback,
+ 0);
+ fdls_send_fdmi_plogi(iport);
+ iport->flags |= FNIC_FDMI_ACTIVE;
+ }
+}
+static void
+fdls_process_tgt_adisc_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint32_t tgt_fcid;
+ struct fnic_tport_s *tport;
+ uint8_t *fcid;
+ uint64_t frame_wwnn;
+ uint64_t frame_wwpn;
+ uint16_t oxid;
+ struct fc_std_els_adisc *adisc_rsp = (struct fc_std_els_adisc *)fchdr;
+ struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *)fchdr;
+ struct fnic *fnic = iport->fnic;
+
+ fcid = FNIC_STD_GET_S_ID(fchdr);
+ tgt_fcid = ntoh24(fcid);
+ tport = fnic_find_tport_by_fcid(iport, tgt_fcid);
+
+ if (!tport) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Tgt ADISC response tport not found: 0x%x", tgt_fcid);
+ return;
+ }
+ if ((iport->state != FNIC_IPORT_STATE_READY)
+ || (tport->state != FDLS_TGT_STATE_ADISC)
+ || (tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping this ADISC response");
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport state: %d tport state: %d Is abort issued on PRLI? %d",
+ iport->state, tport->state,
+ (tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED));
+ return;
+ }
+ if (FNIC_STD_GET_OX_ID(fchdr) != tport->active_oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping frame from target: 0x%x",
+ tgt_fcid);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Reason: Stale ADISC/Aborted ADISC/OOO frame delivery");
+ return;
+ }
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+
+ switch (adisc_rsp->els.adisc_cmd) {
+ case ELS_LS_ACC:
+ atomic64_inc(&iport->iport_stats.tport_adisc_ls_accepts);
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport 0x%p Canceling fabric disc timer\n",
+ tport);
+ fnic_del_tport_timer_sync(fnic, tport);
+ }
+ tport->timer_pending = 0;
+ tport->retry_counter = 0;
+ frame_wwnn = get_unaligned_be64(&adisc_rsp->els.adisc_wwnn);
+ frame_wwpn = get_unaligned_be64(&adisc_rsp->els.adisc_wwpn);
+ if ((frame_wwnn == tport->wwnn) && (frame_wwpn == tport->wwpn)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ADISC accepted from target: 0x%x. Target logged in",
+ tgt_fcid);
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_READY);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Error mismatch frame: ADISC");
+ }
+ break;
+
+ case ELS_LS_RJT:
+ atomic64_inc(&iport->iport_stats.tport_adisc_ls_rejects);
+ if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
+ || (els_rjt->rej.er_reason == ELS_RJT_UNAB))
+ && (tport->retry_counter < FDLS_RETRY_COUNT)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ADISC ret ELS_LS_RJT BUSY. Retry from timer routine: 0x%x",
+ tgt_fcid);
+
+ /* Retry ADISC again from the timer routine. */
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ADISC returned ELS_LS_RJT from target: 0x%x",
+ tgt_fcid);
+ fdls_delete_tport(iport, tport);
+ }
+ break;
+ }
+}
+static void
+fdls_process_tgt_plogi_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint32_t tgt_fcid;
+ struct fnic_tport_s *tport;
+ uint8_t *fcid;
+ uint16_t oxid;
+ struct fc_std_flogi *plogi_rsp = (struct fc_std_flogi *)fchdr;
+ struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *)fchdr;
+ uint16_t max_payload_size;
+ struct fnic *fnic = iport->fnic;
+
+ fcid = FNIC_STD_GET_S_ID(fchdr);
+ tgt_fcid = ntoh24(fcid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS processing target PLOGI response: tgt_fcid: 0x%x",
+ tgt_fcid);
+
+ tport = fnic_find_tport_by_fcid(iport, tgt_fcid);
+ if (!tport) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport not found: 0x%x", tgt_fcid);
+ return;
+ }
+ if ((iport->state != FNIC_IPORT_STATE_READY)
+ || (tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping frame! iport state: %d tport state: %d",
+ iport->state, tport->state);
+ return;
+ }
+
+ if (tport->state != FDLS_TGT_STATE_PLOGI) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI rsp recvd in wrong state. Drop the frame and restart nexus");
+ fdls_target_restart_nexus(tport);
+ return;
+ }
+
+ if (FNIC_STD_GET_OX_ID(fchdr) != tport->active_oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI response from target: 0x%x. Dropping frame",
+ tgt_fcid);
+ return;
+ }
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+
+ switch (plogi_rsp->els.fl_cmd) {
+ case ELS_LS_ACC:
+ atomic64_inc(&iport->iport_stats.tport_plogi_ls_accepts);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI accepted by target: 0x%x", tgt_fcid);
+ break;
+
+ case ELS_LS_RJT:
+ atomic64_inc(&iport->iport_stats.tport_plogi_ls_rejects);
+ if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
+ || (els_rjt->rej.er_reason == ELS_RJT_UNAB))
+ && (tport->retry_counter < iport->max_plogi_retries)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI ret ELS_LS_RJT BUSY. Retry from timer routine: 0x%x",
+ tgt_fcid);
+ /* Retry plogi again from the timer routine. */
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ return;
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI returned ELS_LS_RJT from target: 0x%x",
+ tgt_fcid);
+ fdls_delete_tport(iport, tport);
+ return;
+
+ default:
+ atomic64_inc(&iport->iport_stats.tport_plogi_misc_rejects);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI not accepted from target fcid: 0x%x",
+ tgt_fcid);
+ return;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Found the PLOGI target: 0x%x and state: %d",
+ (unsigned int) tgt_fcid, tport->state);
+
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid 0x%x: Canceling disc timer\n",
+ tport->fcid);
+ fnic_del_tport_timer_sync(fnic, tport);
+ }
+
+ tport->timer_pending = 0;
+ tport->wwpn = get_unaligned_be64(&FNIC_LOGI_PORT_NAME(plogi_rsp->els));
+ tport->wwnn = get_unaligned_be64(&FNIC_LOGI_NODE_NAME(plogi_rsp->els));
+
+ /* Learn the Service Params */
+
+ /* Max frame size - choose the lowest */
+ max_payload_size = fnic_fc_plogi_rsp_rdf(iport, plogi_rsp);
+ tport->max_payload_size =
+ min(max_payload_size, iport->max_payload_size);
+
+ if (tport->max_payload_size < FNIC_MIN_DATA_FIELD_SIZE) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "MFS: tport max frame size below spec bounds: %d",
+ tport->max_payload_size);
+ tport->max_payload_size = FNIC_MIN_DATA_FIELD_SIZE;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "MAX frame size: %u iport max_payload_size: %d tport mfs: %d",
+ max_payload_size, iport->max_payload_size,
+ tport->max_payload_size);
+
+ tport->max_concur_seqs = FNIC_FC_PLOGI_RSP_CONCUR_SEQ(plogi_rsp);
+
+ tport->retry_counter = 0;
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_PRLI);
+ fdls_send_tgt_prli(iport, tport);
+}
+static void
+fdls_process_tgt_prli_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint32_t tgt_fcid;
+ struct fnic_tport_s *tport;
+ uint8_t *fcid;
+ uint16_t oxid;
+ struct fc_std_els_prli *prli_rsp = (struct fc_std_els_prli *)fchdr;
+ struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *)fchdr;
+ struct fnic_tport_event_s *tport_add_evt;
+ struct fnic *fnic = iport->fnic;
+ bool mismatched_tgt = false;
+
+ fcid = FNIC_STD_GET_S_ID(fchdr);
+ tgt_fcid = ntoh24(fcid);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS process tgt PRLI response: 0x%x", tgt_fcid);
+
+ tport = fnic_find_tport_by_fcid(iport, tgt_fcid);
+ if (!tport) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport not found: 0x%x", tgt_fcid);
+ /* Handle or just drop? */
+ return;
+ }
+
+ if ((iport->state != FNIC_IPORT_STATE_READY)
+ || (tport->flags & FNIC_FDLS_TGT_ABORT_ISSUED)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping frame! iport st: %d tport st: %d tport fcid: 0x%x",
+ iport->state, tport->state, tport->fcid);
+ return;
+ }
+
+ if (tport->state != FDLS_TGT_STATE_PRLI) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PRLI rsp recvd in wrong state. Drop frame. Restarting nexus");
+ fdls_target_restart_nexus(tport);
+ return;
+ }
+
+ if (FNIC_STD_GET_OX_ID(fchdr) != tport->active_oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping PRLI response from target: 0x%x ",
+ tgt_fcid);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Reason: Stale PRLI response/Aborted PDISC/OOO frame delivery");
+ return;
+ }
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+
+ switch (prli_rsp->els_prli.prli_cmd) {
+ case ELS_LS_ACC:
+ atomic64_inc(&iport->iport_stats.tport_prli_ls_accepts);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PRLI accepted from target: 0x%x", tgt_fcid);
+
+ if (prli_rsp->sp.spp_type != FC_FC4_TYPE_SCSI) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "mismatched target zoned with FC SCSI initiator: 0x%x",
+ tgt_fcid);
+ mismatched_tgt = true;
+ }
+ if (mismatched_tgt) {
+ fdls_tgt_logout(iport, tport);
+ fdls_delete_tport(iport, tport);
+ return;
+ }
+ break;
+ case ELS_LS_RJT:
+ atomic64_inc(&iport->iport_stats.tport_prli_ls_rejects);
+ if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
+ || (els_rjt->rej.er_reason == ELS_RJT_UNAB))
+ && (tport->retry_counter < FDLS_RETRY_COUNT)) {
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PRLI ret ELS_LS_RJT BUSY. Retry from timer routine: 0x%x",
+ tgt_fcid);
+
+ /*Retry Plogi again from the timer routine. */
+ tport->flags |= FNIC_FDLS_RETRY_FRAME;
+ return;
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PRLI returned ELS_LS_RJT from target: 0x%x",
+ tgt_fcid);
+
+ fdls_tgt_logout(iport, tport);
+ fdls_delete_tport(iport, tport);
+ return;
+ default:
+ atomic64_inc(&iport->iport_stats.tport_prli_misc_rejects);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PRLI not accepted from target: 0x%x", tgt_fcid);
+ return;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Found the PRLI target: 0x%x and state: %d",
+ (unsigned int) tgt_fcid, tport->state);
+
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport fcid 0x%x: Canceling disc timer\n",
+ tport->fcid);
+ fnic_del_tport_timer_sync(fnic, tport);
+ }
+ tport->timer_pending = 0;
+
+ /* Learn Service Params */
+ tport->fcp_csp = be32_to_cpu(prli_rsp->sp.spp_params);
+ tport->retry_counter = 0;
+
+ if (tport->fcp_csp & FCP_SPPF_RETRY)
+ tport->tgt_flags |= FNIC_FC_RP_FLAGS_RETRY;
+
+ /* Check if the device plays Target Mode Function */
+ if (!(tport->fcp_csp & FCP_PRLI_FUNC_TARGET)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Remote port(0x%x): no target support. Deleting it\n",
+ tgt_fcid);
+ fdls_tgt_logout(iport, tport);
+ fdls_delete_tport(iport, tport);
+ return;
+ }
+
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_READY);
+
+ /* Inform the driver about new target added */
+ tport_add_evt = kzalloc(sizeof(struct fnic_tport_event_s), GFP_ATOMIC);
+ if (!tport_add_evt) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport event memory allocation failure: 0x%0x\n",
+ tport->fcid);
+ return;
+ }
+ tport_add_evt->event = TGT_EV_RPORT_ADD;
+ tport_add_evt->arg1 = (void *) tport;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x add tport event fcid: 0x%x\n",
+ tport->fcid, iport->fcid);
+ list_add_tail(&tport_add_evt->links, &fnic->tport_event_list);
+ queue_work(fnic_event_queue, &fnic->tport_work);
+}
+
+
+static void
+fdls_process_rff_id_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fnic *fnic = iport->fnic;
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fc_std_rff_id *rff_rsp = (struct fc_std_rff_id *) fchdr;
+ uint16_t rsp;
+ uint8_t reason_code;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if (fdls_get_state(fdls) != FDLS_STATE_REGISTER_FC4_FEATURES) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RFF_ID resp recvd in state(%d). Dropping.",
+ fdls_get_state(fdls));
+ return;
+ }
+
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ return;
+ }
+
+ rsp = FNIC_STD_GET_FC_CT_CMD((&rff_rsp->fc_std_ct_hdr));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS process RFF ID response: 0x%04x", iport->fcid,
+ (uint32_t) rsp);
+
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (rsp) {
+ case FC_FS_ACC:
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ fdls->retry_counter = 0;
+ fdls_set_state((&iport->fabric), FDLS_STATE_SCR);
+ fdls_send_scr(iport);
+ break;
+ case FC_FS_RJT:
+ reason_code = rff_rsp->fc_std_ct_hdr.ct_reason;
+ if (((reason_code == FC_FS_RJT_BSY)
+ || (reason_code == FC_FS_RJT_UNABL))
+ && (fdls->retry_counter < FDLS_RETRY_COUNT)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RFF_ID ret ELS_LS_RJT BUSY. Retry from timer routine %p",
+ iport);
+
+ /* Retry again from the timer routine */
+ fdls->flags |= FNIC_FDLS_RETRY_FRAME;
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RFF_ID returned ELS_LS_RJT. Halting discovery %p",
+ iport);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ fdls->timer_pending = 0;
+ fdls->retry_counter = 0;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+fdls_process_rft_id_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fc_std_rft_id *rft_rsp = (struct fc_std_rft_id *) fchdr;
+ uint16_t rsp;
+ uint8_t reason_code;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if (fdls_get_state(fdls) != FDLS_STATE_REGISTER_FC4_TYPES) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RFT_ID resp recvd in state(%d). Dropping.",
+ fdls_get_state(fdls));
+ return;
+ }
+
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ return;
+ }
+
+
+ rsp = FNIC_STD_GET_FC_CT_CMD((&rft_rsp->fc_std_ct_hdr));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS process RFT ID response: 0x%04x", iport->fcid,
+ (uint32_t) rsp);
+
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (rsp) {
+ case FC_FS_ACC:
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ fdls->retry_counter = 0;
+ fdls_send_register_fc4_features(iport);
+ fdls_set_state((&iport->fabric), FDLS_STATE_REGISTER_FC4_FEATURES);
+ break;
+ case FC_FS_RJT:
+ reason_code = rft_rsp->fc_std_ct_hdr.ct_reason;
+ if (((reason_code == FC_FS_RJT_BSY)
+ || (reason_code == FC_FS_RJT_UNABL))
+ && (fdls->retry_counter < FDLS_RETRY_COUNT)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: RFT_ID ret ELS_LS_RJT BUSY. Retry from timer routine",
+ iport->fcid);
+
+ /* Retry again from the timer routine */
+ fdls->flags |= FNIC_FDLS_RETRY_FRAME;
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: RFT_ID REJ. Halting discovery reason %d expl %d",
+ iport->fcid, reason_code,
+ rft_rsp->fc_std_ct_hdr.ct_explan);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ fdls->timer_pending = 0;
+ fdls->retry_counter = 0;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+fdls_process_rpn_id_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fc_std_rpn_id *rpn_rsp = (struct fc_std_rpn_id *) fchdr;
+ uint16_t rsp;
+ uint8_t reason_code;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if (fdls_get_state(fdls) != FDLS_STATE_RPN_ID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RPN_ID resp recvd in state(%d). Dropping.",
+ fdls_get_state(fdls));
+ return;
+ }
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ return;
+ }
+
+ rsp = FNIC_STD_GET_FC_CT_CMD((&rpn_rsp->fc_std_ct_hdr));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS process RPN ID response: 0x%04x", iport->fcid,
+ (uint32_t) rsp);
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (rsp) {
+ case FC_FS_ACC:
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ fdls->retry_counter = 0;
+ fdls_send_register_fc4_types(iport);
+ fdls_set_state((&iport->fabric), FDLS_STATE_REGISTER_FC4_TYPES);
+ break;
+ case FC_FS_RJT:
+ reason_code = rpn_rsp->fc_std_ct_hdr.ct_reason;
+ if (((reason_code == FC_FS_RJT_BSY)
+ || (reason_code == FC_FS_RJT_UNABL))
+ && (fdls->retry_counter < FDLS_RETRY_COUNT)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RPN_ID returned REJ BUSY. Retry from timer routine %p",
+ iport);
+
+ /* Retry again from the timer routine */
+ fdls->flags |= FNIC_FDLS_RETRY_FRAME;
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RPN_ID ELS_LS_RJT. Halting discovery %p", iport);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ fdls->timer_pending = 0;
+ fdls->retry_counter = 0;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+fdls_process_scr_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fc_std_scr *scr_rsp = (struct fc_std_scr *) fchdr;
+ struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *) fchdr;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS process SCR response: 0x%04x",
+ (uint32_t) scr_rsp->scr.scr_cmd);
+
+ if (fdls_get_state(fdls) != FDLS_STATE_SCR) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "SCR resp recvd in state(%d). Dropping.",
+ fdls_get_state(fdls));
+ return;
+ }
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ }
+
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (scr_rsp->scr.scr_cmd) {
+ case ELS_LS_ACC:
+ atomic64_inc(&iport->iport_stats.fabric_scr_ls_accepts);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ iport->fabric.retry_counter = 0;
+ fdls_send_gpn_ft(iport, FDLS_STATE_GPN_FT);
+ break;
+
+ case ELS_LS_RJT:
+ atomic64_inc(&iport->iport_stats.fabric_scr_ls_rejects);
+ if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
+ || (els_rjt->rej.er_reason == ELS_RJT_UNAB))
+ && (fdls->retry_counter < FDLS_RETRY_COUNT)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "SCR ELS_LS_RJT BUSY. Retry from timer routine %p",
+ iport);
+ /* Retry again from the timer routine */
+ fdls->flags |= FNIC_FDLS_RETRY_FRAME;
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "SCR returned ELS_LS_RJT. Halting discovery %p",
+ iport);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n",
+ iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ fdls->timer_pending = 0;
+ fdls->retry_counter = 0;
+ }
+ break;
+
+ default:
+ atomic64_inc(&iport->iport_stats.fabric_scr_misc_rejects);
+ break;
+ }
+}
+
+static void
+fdls_process_gpn_ft_tgt_list(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr, int len)
+{
+ struct fc_gpn_ft_rsp_iu *gpn_ft_tgt;
+ struct fnic_tport_s *tport, *next;
+ uint32_t fcid;
+ uint64_t wwpn;
+ int rem_len = len;
+ u32 old_link_down_cnt = iport->fnic->link_down_cnt;
+ struct fnic *fnic = iport->fnic;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS process GPN_FT tgt list", iport->fcid);
+
+ gpn_ft_tgt =
+ (struct fc_gpn_ft_rsp_iu *)((uint8_t *) fchdr +
+ sizeof(struct fc_frame_header)
+ + sizeof(struct fc_ct_hdr));
+ len -= sizeof(struct fc_frame_header) + sizeof(struct fc_ct_hdr);
+
+ while (rem_len > 0) {
+
+ fcid = ntoh24(gpn_ft_tgt->fcid);
+ wwpn = be64_to_cpu(gpn_ft_tgt->wwpn);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "tport: 0x%x: ctrl:0x%x", fcid, gpn_ft_tgt->ctrl);
+
+ if (fcid == iport->fcid) {
+ if (gpn_ft_tgt->ctrl & FC_NS_FID_LAST)
+ break;
+ gpn_ft_tgt++;
+ rem_len -= sizeof(struct fc_gpn_ft_rsp_iu);
+ continue;
+ }
+
+ tport = fnic_find_tport_by_wwpn(iport, wwpn);
+ if (!tport) {
+ /*
+ * New port registered with the switch or first time query
+ */
+ tport = fdls_create_tport(iport, fcid, wwpn);
+ if (!tport)
+ return;
+ }
+ /*
+ * check if this was an existing tport with same fcid
+ * but whose wwpn has changed now ,then remove it and
+ * create a new one
+ */
+ if (tport->fcid != fcid) {
+ fdls_delete_tport(iport, tport);
+ tport = fdls_create_tport(iport, fcid, wwpn);
+ if (!tport)
+ return;
+ }
+
+ /*
+ * If this GPN_FT rsp is after RSCN then mark the tports which
+ * matches with the new GPN_FT list, if some tport is not
+ * found in GPN_FT we went to delete that tport later.
+ */
+ if (fdls_get_state((&iport->fabric)) == FDLS_STATE_RSCN_GPN_FT)
+ tport->flags |= FNIC_FDLS_TPORT_IN_GPN_FT_LIST;
+
+ if (gpn_ft_tgt->ctrl & FC_NS_FID_LAST)
+ break;
+
+ gpn_ft_tgt++;
+ rem_len -= sizeof(struct fc_gpn_ft_rsp_iu);
+ }
+ if (rem_len <= 0) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "GPN_FT response: malformed/corrupt frame rxlen: %d remlen: %d",
+ len, rem_len);
+}
+
+ /*remove those ports which was not listed in GPN_FT */
+ if (fdls_get_state((&iport->fabric)) == FDLS_STATE_RSCN_GPN_FT) {
+ list_for_each_entry_safe(tport, next, &iport->tport_list, links) {
+
+ if (!(tport->flags & FNIC_FDLS_TPORT_IN_GPN_FT_LIST)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Remove port: 0x%x not found in GPN_FT list",
+ tport->fcid);
+ fdls_delete_tport(iport, tport);
+ } else {
+ tport->flags &= ~FNIC_FDLS_TPORT_IN_GPN_FT_LIST;
+ }
+ if ((old_link_down_cnt != iport->fnic->link_down_cnt)
+ || (iport->state != FNIC_IPORT_STATE_READY)) {
+ return;
+ }
+ }
+ }
+}
+
+static void
+fdls_process_gpn_ft_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr, int len)
+{
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fc_std_gpn_ft *gpn_ft_rsp = (struct fc_std_gpn_ft *) fchdr;
+ uint16_t rsp;
+ uint8_t reason_code;
+ int count = 0;
+ struct fnic_tport_s *tport, *next;
+ u32 old_link_down_cnt = iport->fnic->link_down_cnt;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS process GPN_FT response: iport state: %d len: %d",
+ iport->state, len);
+
+ /*
+ * GPNFT response :-
+ * FDLS_STATE_GPN_FT : GPNFT send after SCR state
+ * during fabric discovery(FNIC_IPORT_STATE_FABRIC_DISC)
+ * FDLS_STATE_RSCN_GPN_FT : GPNFT send in response to RSCN
+ * FDLS_STATE_SEND_GPNFT : GPNFT send after deleting a Target,
+ * e.g. after receiving Target LOGO
+ * FDLS_STATE_TGT_DISCOVERY :Target discovery is currently in progress
+ * from previous GPNFT response,a new GPNFT response has come.
+ */
+ if (!(((iport->state == FNIC_IPORT_STATE_FABRIC_DISC)
+ && (fdls_get_state(fdls) == FDLS_STATE_GPN_FT))
+ || ((iport->state == FNIC_IPORT_STATE_READY)
+ && ((fdls_get_state(fdls) == FDLS_STATE_RSCN_GPN_FT)
+ || (fdls_get_state(fdls) == FDLS_STATE_SEND_GPNFT)
+ || (fdls_get_state(fdls) == FDLS_STATE_TGT_DISCOVERY))))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "GPNFT resp recvd in fab state(%d) iport_state(%d). Dropping.",
+ fdls_get_state(fdls), iport->state);
+ return;
+ }
+
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ }
+
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ iport->state = FNIC_IPORT_STATE_READY;
+ rsp = FNIC_STD_GET_FC_CT_CMD((&gpn_ft_rsp->fc_std_ct_hdr));
+
+ switch (rsp) {
+
+ case FC_FS_ACC:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: GPNFT_RSP accept", iport->fcid);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Canceling fabric disc timer\n",
+ iport->fcid);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ iport->fabric.retry_counter = 0;
+ fdls_process_gpn_ft_tgt_list(iport, fchdr, len);
+
+ /*
+ * iport state can change only if link down event happened
+ * We don't need to undo fdls_process_gpn_ft_tgt_list,
+ * that will be taken care in next link up event
+ */
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Halting target discovery: fab st: %d iport st: %d ",
+ fdls_get_state(fdls), iport->state);
+ break;
+ }
+ fdls_tgt_discovery_start(iport);
+ break;
+
+ case FC_FS_RJT:
+ reason_code = gpn_ft_rsp->fc_std_ct_hdr.ct_reason;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: GPNFT_RSP Reject reason: %d", iport->fcid, reason_code);
+
+ if (((reason_code == FC_FS_RJT_BSY)
+ || (reason_code == FC_FS_RJT_UNABL))
+ && (fdls->retry_counter < FDLS_RETRY_COUNT)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: GPNFT_RSP ret REJ/BSY. Retry from timer routine",
+ iport->fcid);
+ /* Retry again from the timer routine */
+ fdls->flags |= FNIC_FDLS_RETRY_FRAME;
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: GPNFT_RSP reject", iport->fcid);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Canceling fabric disc timer\n",
+ iport->fcid);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ iport->fabric.retry_counter = 0;
+ /*
+ * If GPN_FT ls_rjt then we should delete
+ * all existing tports
+ */
+ count = 0;
+ list_for_each_entry_safe(tport, next, &iport->tport_list,
+ links) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "GPN_FT_REJECT: Remove port: 0x%x",
+ tport->fcid);
+ fdls_delete_tport(iport, tport);
+ if ((old_link_down_cnt != iport->fnic->link_down_cnt)
+ || (iport->state != FNIC_IPORT_STATE_READY)) {
+ return;
+ }
+ count++;
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "GPN_FT_REJECT: Removed (0x%x) ports", count);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/**
+ * fdls_process_fabric_logo_rsp - Handle an flogo response from the fcf
+ * @iport: Handle to fnic iport
+ * @fchdr: Incoming frame
+ */
+static void
+fdls_process_fabric_logo_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fc_std_flogi *flogo_rsp = (struct fc_std_flogi *) fchdr;
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ }
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (flogo_rsp->els.fl_cmd) {
+ case ELS_LS_ACC:
+ if (iport->fabric.state != FDLS_STATE_FABRIC_LOGO) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Flogo response. Fabric not in LOGO state. Dropping! %p",
+ iport);
+ return;
+ }
+
+ iport->fabric.state = FDLS_STATE_FLOGO_DONE;
+ iport->state = FNIC_IPORT_STATE_LINK_WAIT;
+
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport 0x%p Canceling fabric disc timer\n",
+ iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Flogo response from Fabric for did: 0x%x",
+ ntoh24(fchdr->fh_d_id));
+ return;
+
+ case ELS_LS_RJT:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Flogo response from Fabric for did: 0x%x returned ELS_LS_RJT",
+ ntoh24(fchdr->fh_d_id));
+ return;
+
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGO response not accepted or rejected: 0x%x",
+ flogo_rsp->els.fl_cmd);
+ }
+}
+
+static void
+fdls_process_flogi_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr, void *rx_frame)
+{
+ struct fnic_fdls_fabric_s *fabric = &iport->fabric;
+ struct fc_std_flogi *flogi_rsp = (struct fc_std_flogi *) fchdr;
+ uint8_t *fcid;
+ uint16_t rdf_size;
+ uint8_t fcmac[6] = { 0x0E, 0XFC, 0x00, 0x00, 0x00, 0x00 };
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS processing FLOGI response", iport->fcid);
+
+ if (fdls_get_state(fabric) != FDLS_STATE_FABRIC_FLOGI) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI response received in state (%d). Dropping frame",
+ fdls_get_state(fabric));
+ return;
+ }
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fabric), oxid, iport->active_oxid_fabric_req);
+ return;
+ }
+
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (flogi_rsp->els.fl_cmd) {
+ case ELS_LS_ACC:
+ atomic64_inc(&iport->iport_stats.fabric_flogi_ls_accepts);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x Canceling fabric disc timer\n",
+ iport->fcid);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+
+ iport->fabric.timer_pending = 0;
+ iport->fabric.retry_counter = 0;
+ fcid = FNIC_STD_GET_D_ID(fchdr);
+ iport->fcid = ntoh24(fcid);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FLOGI response accepted", iport->fcid);
+
+ /* Learn the Service Params */
+ rdf_size = be16_to_cpu(FNIC_LOGI_RDF_SIZE(flogi_rsp->els));
+ if ((rdf_size >= FNIC_MIN_DATA_FIELD_SIZE)
+ && (rdf_size < FNIC_FC_MAX_PAYLOAD_LEN))
+ iport->max_payload_size = min(rdf_size,
+ iport->max_payload_size);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "max_payload_size from fabric: %u set: %d", rdf_size,
+ iport->max_payload_size);
+
+ iport->r_a_tov = be32_to_cpu(FNIC_LOGI_R_A_TOV(flogi_rsp->els));
+ iport->e_d_tov = be32_to_cpu(FNIC_LOGI_E_D_TOV(flogi_rsp->els));
+
+ if (FNIC_LOGI_FEATURES(flogi_rsp->els) & FNIC_FC_EDTOV_NSEC)
+ iport->e_d_tov = iport->e_d_tov / FNIC_NSEC_TO_MSEC;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "From fabric: R_A_TOV: %d E_D_TOV: %d",
+ iport->r_a_tov, iport->e_d_tov);
+
+ fc_host_fabric_name(iport->fnic->host) =
+ get_unaligned_be64(&FNIC_LOGI_NODE_NAME(flogi_rsp->els));
+ fc_host_port_id(iport->fnic->host) = iport->fcid;
+
+ fnic_fdls_learn_fcoe_macs(iport, rx_frame, fcid);
+
+ if (fnic_fdls_register_portid(iport, iport->fcid, rx_frame) != 0) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FLOGI registration failed", iport->fcid);
+ break;
+ }
+
+ memcpy(&fcmac[3], fcid, 3);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Adding vNIC device MAC addr: %02x:%02x:%02x:%02x:%02x:%02x",
+ fcmac[0], fcmac[1], fcmac[2], fcmac[3], fcmac[4],
+ fcmac[5]);
+ vnic_dev_add_addr(iport->fnic->vdev, fcmac);
+
+ if (fdls_get_state(fabric) == FDLS_STATE_FABRIC_FLOGI) {
+ fnic_fdls_start_plogi(iport);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI response received. Starting PLOGI");
+ } else {
+ /* From FDLS_STATE_FABRIC_FLOGI state fabric can only go to
+ * FDLS_STATE_LINKDOWN
+ * state, hence we don't have to worry about undoing:
+ * the fnic_fdls_register_portid and vnic_dev_add_addr
+ */
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI response received in state (%d). Dropping frame",
+ fdls_get_state(fabric));
+ }
+ break;
+
+ case ELS_LS_RJT:
+ atomic64_inc(&iport->iport_stats.fabric_flogi_ls_rejects);
+ if (fabric->retry_counter < iport->max_flogi_retries) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI returned ELS_LS_RJT BUSY. Retry from timer routine %p",
+ iport);
+
+ /* Retry Flogi again from the timer routine. */
+ fabric->flags |= FNIC_FDLS_RETRY_FRAME;
+
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI returned ELS_LS_RJT. Halting discovery %p",
+ iport);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport 0x%p Canceling fabric disc timer\n",
+ iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ fabric->timer_pending = 0;
+ fabric->retry_counter = 0;
+ }
+ break;
+
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI response not accepted: 0x%x",
+ flogi_rsp->els.fl_cmd);
+ atomic64_inc(&iport->iport_stats.fabric_flogi_misc_rejects);
+ break;
+ }
+}
+
+static void
+fdls_process_fabric_plogi_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fc_std_flogi *plogi_rsp = (struct fc_std_flogi *) fchdr;
+ struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *) fchdr;
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if (fdls_get_state((&iport->fabric)) != FDLS_STATE_FABRIC_PLOGI) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Fabric PLOGI response received in state (%d). Dropping frame",
+ fdls_get_state(&iport->fabric));
+ return;
+ }
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fabric_req);
+ return;
+ }
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ switch (plogi_rsp->els.fl_cmd) {
+ case ELS_LS_ACC:
+ atomic64_inc(&iport->iport_stats.fabric_plogi_ls_accepts);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x fabric PLOGI response: Accepted\n",
+ iport->fcid);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ iport->fabric.retry_counter = 0;
+ fdls_set_state(&iport->fabric, FDLS_STATE_RPN_ID);
+ fdls_send_rpn_id(iport);
+ break;
+ case ELS_LS_RJT:
+ atomic64_inc(&iport->iport_stats.fabric_plogi_ls_rejects);
+ if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
+ || (els_rjt->rej.er_reason == ELS_RJT_UNAB))
+ && (iport->fabric.retry_counter < iport->max_plogi_retries)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Fabric PLOGI ELS_LS_RJT BUSY. Retry from timer routine",
+ iport->fcid);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Fabric PLOGI ELS_LS_RJT. Halting discovery",
+ iport->fcid);
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x Canceling fabric disc timer\n",
+ iport->fcid);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ iport->fabric.retry_counter = 0;
+ return;
+ }
+ break;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI response not accepted: 0x%x",
+ plogi_rsp->els.fl_cmd);
+ atomic64_inc(&iport->iport_stats.fabric_plogi_misc_rejects);
+ break;
+ }
+}
+
+static void fdls_process_fdmi_plogi_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fc_std_flogi *plogi_rsp = (struct fc_std_flogi *)fchdr;
+ struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *)fchdr;
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fnic *fnic = iport->fnic;
+ u64 fdmi_tov;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if (iport->active_oxid_fdmi_plogi != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
+ fdls_get_state(fdls), oxid, iport->active_oxid_fdmi_plogi);
+ return;
+ }
+
+ iport->fabric.fdmi_pending &= ~FDLS_FDMI_PLOGI_PENDING;
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_plogi);
+
+ if (ntoh24(fchdr->fh_s_id) == FC_FID_MGMT_SERV) {
+ timer_delete_sync(&iport->fabric.fdmi_timer);
+ iport->fabric.fdmi_pending = 0;
+ switch (plogi_rsp->els.fl_cmd) {
+ case ELS_LS_ACC:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS process fdmi PLOGI response status: ELS_LS_ACC\n");
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Sending fdmi registration for port 0x%x\n",
+ iport->fcid);
+
+ fdls_fdmi_register_hba(iport);
+ fdls_fdmi_register_pa(iport);
+ fdmi_tov = jiffies + msecs_to_jiffies(5000);
+ mod_timer(&iport->fabric.fdmi_timer,
+ round_jiffies(fdmi_tov));
+ break;
+ case ELS_LS_RJT:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Fabric FDMI PLOGI returned ELS_LS_RJT reason: 0x%x",
+ els_rjt->rej.er_reason);
+
+ if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
+ || (els_rjt->rej.er_reason == ELS_RJT_UNAB))
+ && (iport->fabric.fdmi_retry < 7)) {
+ iport->fabric.fdmi_retry++;
+ fdls_send_fdmi_plogi(iport);
+ }
+ break;
+ default:
+ break;
+ }
+ }
+}
+static void fdls_process_fdmi_reg_ack(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr,
+ int rsp_type)
+{
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+
+ if (!iport->fabric.fdmi_pending) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Received FDMI ack while not waiting: 0x%x\n",
+ FNIC_STD_GET_OX_ID(fchdr));
+ return;
+ }
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ if ((iport->active_oxid_fdmi_rhba != oxid) &&
+ (iport->active_oxid_fdmi_rpa != oxid)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Incorrect OXID in response. oxid recvd: 0x%x, active oxids(rhba,rpa): 0x%x, 0x%x\n",
+ oxid, iport->active_oxid_fdmi_rhba, iport->active_oxid_fdmi_rpa);
+ return;
+ }
+ if (FNIC_FRAME_TYPE(oxid) == FNIC_FRAME_TYPE_FDMI_RHBA) {
+ iport->fabric.fdmi_pending &= ~FDLS_FDMI_REG_HBA_PENDING;
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rhba);
+ } else {
+ iport->fabric.fdmi_pending &= ~FDLS_FDMI_RPA_PENDING;
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rpa);
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x: Received FDMI registration ack\n",
+ iport->fcid);
+
+ if (!iport->fabric.fdmi_pending) {
+ timer_delete_sync(&iport->fabric.fdmi_timer);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport fcid: 0x%x: Canceling FDMI timer\n",
+ iport->fcid);
+ }
+}
+
+static void fdls_process_fdmi_abts_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint32_t s_id;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+
+ s_id = ntoh24(FNIC_STD_GET_S_ID(fchdr));
+
+ if (!(s_id != FC_FID_MGMT_SERV)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received abts rsp with invalid SID: 0x%x. Dropping frame",
+ s_id);
+ return;
+ }
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ switch (FNIC_FRAME_TYPE(oxid)) {
+ case FNIC_FRAME_TYPE_FDMI_PLOGI:
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_plogi);
+ break;
+ case FNIC_FRAME_TYPE_FDMI_RHBA:
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rhba);
+ break;
+ case FNIC_FRAME_TYPE_FDMI_RPA:
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rpa);
+ break;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received abts rsp with invalid oxid: 0x%x. Dropping frame",
+ oxid);
+ break;
+ }
+
+ timer_delete_sync(&iport->fabric.fdmi_timer);
+ iport->fabric.fdmi_pending &= ~FDLS_FDMI_ABORT_PENDING;
+
+ fdls_send_fdmi_plogi(iport);
+}
+
+static void
+fdls_process_fabric_abts_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint32_t s_id;
+ struct fc_std_abts_ba_acc *ba_acc = (struct fc_std_abts_ba_acc *)fchdr;
+ struct fc_std_abts_ba_rjt *ba_rjt;
+ uint32_t fabric_state = iport->fabric.state;
+ struct fnic *fnic = iport->fnic;
+ int frame_type;
+ uint16_t oxid;
+
+ s_id = ntoh24(fchdr->fh_s_id);
+ ba_rjt = (struct fc_std_abts_ba_rjt *) fchdr;
+
+ if (!((s_id == FC_FID_DIR_SERV) || (s_id == FC_FID_FLOGI)
+ || (s_id == FC_FID_FCTRL))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received abts rsp with invalid SID: 0x%x. Dropping frame",
+ s_id);
+ return;
+ }
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ if (iport->active_oxid_fabric_req != oxid) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received abts rsp with invalid oxid: 0x%x. Dropping frame",
+ oxid);
+ return;
+ }
+
+ if (iport->fabric.timer_pending) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Canceling fabric disc timer %p\n", iport);
+ fnic_del_fabric_timer_sync(fnic);
+ }
+ iport->fabric.timer_pending = 0;
+ iport->fabric.flags &= ~FNIC_FDLS_FABRIC_ABORT_ISSUED;
+
+ if (fchdr->fh_r_ctl == FC_RCTL_BA_ACC) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received abts rsp BA_ACC for fabric_state: %d OX_ID: 0x%x",
+ fabric_state, be16_to_cpu(ba_acc->acc.ba_ox_id));
+ } else if (fchdr->fh_r_ctl == FC_RCTL_BA_RJT) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "BA_RJT fs: %d OX_ID: 0x%x rc: 0x%x rce: 0x%x",
+ fabric_state, FNIC_STD_GET_OX_ID(&ba_rjt->fchdr),
+ ba_rjt->rjt.br_reason, ba_rjt->rjt.br_explan);
+ }
+
+ frame_type = FNIC_FRAME_TYPE(oxid);
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+
+ /* currently error handling/retry logic is same for ABTS BA_ACC & BA_RJT */
+ switch (frame_type) {
+ case FNIC_FRAME_TYPE_FABRIC_FLOGI:
+ if (iport->fabric.retry_counter < iport->max_flogi_retries)
+ fdls_send_fabric_flogi(iport);
+ else
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Exceeded max FLOGI retries");
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_LOGO:
+ if (iport->fabric.retry_counter < FABRIC_LOGO_MAX_RETRY)
+ fdls_send_fabric_logo(iport);
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_PLOGI:
+ if (iport->fabric.retry_counter < iport->max_plogi_retries)
+ fdls_send_fabric_plogi(iport);
+ else
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Exceeded max PLOGI retries");
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_RPN:
+ if (iport->fabric.retry_counter < FDLS_RETRY_COUNT)
+ fdls_send_rpn_id(iport);
+ else
+ /* go back to fabric Plogi */
+ fnic_fdls_start_plogi(iport);
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_SCR:
+ if (iport->fabric.retry_counter < FDLS_RETRY_COUNT)
+ fdls_send_scr(iport);
+ else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "SCR exhausted retries. Start fabric PLOGI %p",
+ iport);
+ fnic_fdls_start_plogi(iport); /* go back to fabric Plogi */
+ }
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_RFT:
+ if (iport->fabric.retry_counter < FDLS_RETRY_COUNT)
+ fdls_send_register_fc4_types(iport);
+ else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RFT exhausted retries. Start fabric PLOGI %p",
+ iport);
+ fnic_fdls_start_plogi(iport); /* go back to fabric Plogi */
+ }
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_RFF:
+ if (iport->fabric.retry_counter < FDLS_RETRY_COUNT)
+ fdls_send_register_fc4_features(iport);
+ else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RFF exhausted retries. Start fabric PLOGI %p",
+ iport);
+ fnic_fdls_start_plogi(iport); /* go back to fabric Plogi */
+ }
+ break;
+ case FNIC_FRAME_TYPE_FABRIC_GPN_FT:
+ if (iport->fabric.retry_counter <= FDLS_RETRY_COUNT)
+ fdls_send_gpn_ft(iport, fabric_state);
+ else
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "GPN FT exhausted retries. Start fabric PLOGI %p",
+ iport);
+ break;
+ default:
+ /*
+ * We should not be here since we already validated rx oxid with
+ * our active_oxid_fabric_req
+ */
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Invalid OXID/active oxid 0x%x\n", oxid);
+ WARN_ON(true);
+ return;
+ }
+}
+
+static void
+fdls_process_abts_req(struct fnic_iport_s *iport, struct fc_frame_header *fchdr)
+{
+ uint8_t *frame;
+ struct fc_std_abts_ba_acc *pba_acc;
+ uint32_t nport_id;
+ uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
+ struct fnic_tport_s *tport;
+ struct fnic *fnic = iport->fnic;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_abts_ba_acc);
+
+ nport_id = ntoh24(fchdr->fh_s_id);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received abort from SID 0x%8x", nport_id);
+
+ tport = fnic_find_tport_by_fcid(iport, nport_id);
+ if (tport) {
+ if (tport->active_oxid == oxid) {
+ tport->flags |= FNIC_FDLS_TGT_ABORT_ISSUED;
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ }
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "0x%x: Failed to allocate frame to send response for ABTS req",
+ iport->fcid);
+ return;
+ }
+
+ pba_acc = (struct fc_std_abts_ba_acc *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ *pba_acc = (struct fc_std_abts_ba_acc) {
+ .fchdr = {.fh_r_ctl = FC_RCTL_BA_ACC,
+ .fh_f_ctl = {FNIC_FCP_RSP_FCTL, 0, 0}},
+ .acc = {.ba_low_seq_cnt = 0, .ba_high_seq_cnt = cpu_to_be16(0xFFFF)}
+ };
+
+ FNIC_STD_SET_S_ID(pba_acc->fchdr, fchdr->fh_d_id);
+ FNIC_STD_SET_D_ID(pba_acc->fchdr, fchdr->fh_s_id);
+ FNIC_STD_SET_OX_ID(pba_acc->fchdr, FNIC_STD_GET_OX_ID(fchdr));
+ FNIC_STD_SET_RX_ID(pba_acc->fchdr, FNIC_STD_GET_RX_ID(fchdr));
+
+ pba_acc->acc.ba_rx_id = cpu_to_be16(FNIC_STD_GET_RX_ID(fchdr));
+ pba_acc->acc.ba_ox_id = cpu_to_be16(FNIC_STD_GET_OX_ID(fchdr));
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS send BA ACC with oxid: 0x%x",
+ iport->fcid, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+static void
+fdls_process_unsupported_els_req(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint8_t *frame;
+ struct fc_std_els_rjt_rsp *pls_rsp;
+ uint16_t oxid;
+ uint32_t d_id = ntoh24(fchdr->fh_d_id);
+ struct fnic *fnic = iport->fnic;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_rjt_rsp);
+
+ if (iport->fcid != d_id) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping unsupported ELS with illegal frame bits 0x%x\n",
+ d_id);
+ atomic64_inc(&iport->iport_stats.unsupported_frames_dropped);
+ return;
+ }
+
+ if ((iport->state != FNIC_IPORT_STATE_READY)
+ && (iport->state != FNIC_IPORT_STATE_FABRIC_DISC)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping unsupported ELS request in iport state: %d",
+ iport->state);
+ atomic64_inc(&iport->iport_stats.unsupported_frames_dropped);
+ return;
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send response to unsupported ELS request");
+ return;
+ }
+
+ pls_rsp = (struct fc_std_els_rjt_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_els_rjt_frame(frame, iport);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Process unsupported ELS request from SID: 0x%x",
+ iport->fcid, ntoh24(fchdr->fh_s_id));
+
+ /* We don't support this ELS request, send a reject */
+ pls_rsp->rej.er_reason = 0x0B;
+ pls_rsp->rej.er_explan = 0x0;
+ pls_rsp->rej.er_vendor = 0x0;
+
+ FNIC_STD_SET_S_ID(pls_rsp->fchdr, fchdr->fh_d_id);
+ FNIC_STD_SET_D_ID(pls_rsp->fchdr, fchdr->fh_s_id);
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ FNIC_STD_SET_OX_ID(pls_rsp->fchdr, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+static void
+fdls_process_rls_req(struct fnic_iport_s *iport, struct fc_frame_header *fchdr)
+{
+ uint8_t *frame;
+ struct fc_std_rls_acc *prls_acc_rsp;
+ uint16_t oxid;
+ struct fnic *fnic = iport->fnic;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_rls_acc);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Process RLS request %d", iport->fnic->fnic_num);
+
+ if ((iport->state != FNIC_IPORT_STATE_READY)
+ && (iport->state != FNIC_IPORT_STATE_FABRIC_DISC)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received RLS req in iport state: %d. Dropping the frame.",
+ iport->state);
+ return;
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send RLS accept");
+ return;
+ }
+ prls_acc_rsp = (struct fc_std_rls_acc *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+
+ FNIC_STD_SET_S_ID(prls_acc_rsp->fchdr, fchdr->fh_d_id);
+ FNIC_STD_SET_D_ID(prls_acc_rsp->fchdr, fchdr->fh_s_id);
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ FNIC_STD_SET_OX_ID(prls_acc_rsp->fchdr, oxid);
+ FNIC_STD_SET_RX_ID(prls_acc_rsp->fchdr, FNIC_UNASSIGNED_RXID);
+
+ FNIC_STD_SET_F_CTL(prls_acc_rsp->fchdr, FNIC_ELS_REP_FCTL << 16);
+ FNIC_STD_SET_R_CTL(prls_acc_rsp->fchdr, FC_RCTL_ELS_REP);
+ FNIC_STD_SET_TYPE(prls_acc_rsp->fchdr, FC_TYPE_ELS);
+
+ prls_acc_rsp->els.rls_cmd = ELS_LS_ACC;
+ prls_acc_rsp->els.rls_lesb.lesb_link_fail =
+ cpu_to_be32(iport->fnic->link_down_cnt);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+static void
+fdls_process_els_req(struct fnic_iport_s *iport, struct fc_frame_header *fchdr,
+ uint32_t len)
+{
+ uint8_t *frame;
+ struct fc_std_els_acc_rsp *pels_acc;
+ uint16_t oxid;
+ uint8_t *fc_payload;
+ uint8_t type;
+ struct fnic *fnic = iport->fnic;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET;
+
+ fc_payload = (uint8_t *) fchdr + sizeof(struct fc_frame_header);
+ type = *fc_payload;
+
+ if ((iport->state != FNIC_IPORT_STATE_READY)
+ && (iport->state != FNIC_IPORT_STATE_FABRIC_DISC)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping ELS frame type: 0x%x in iport state: %d",
+ type, iport->state);
+ return;
+ }
+ switch (type) {
+ case ELS_ECHO:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "sending LS_ACC for ECHO request %d\n",
+ iport->fnic->fnic_num);
+ break;
+
+ case ELS_RRQ:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "sending LS_ACC for RRQ request %d\n",
+ iport->fnic->fnic_num);
+ break;
+
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "sending LS_ACC for 0x%x ELS frame\n", type);
+ break;
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send ELS response for 0x%x",
+ type);
+ return;
+ }
+
+ if (type == ELS_ECHO) {
+ /* Brocade sends a longer payload, copy all frame back */
+ memcpy(frame, fchdr, len);
+ }
+
+ pels_acc = (struct fc_std_els_acc_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_els_acc_frame(frame, iport);
+
+ FNIC_STD_SET_D_ID(pels_acc->fchdr, fchdr->fh_s_id);
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ FNIC_STD_SET_OX_ID(pels_acc->fchdr, oxid);
+
+ if (type == ELS_ECHO)
+ frame_size += len;
+ else
+ frame_size += sizeof(struct fc_std_els_acc_rsp);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+static void
+fdls_process_tgt_abts_rsp(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint32_t s_id;
+ struct fnic_tport_s *tport;
+ uint32_t tport_state;
+ struct fc_std_abts_ba_acc *ba_acc;
+ struct fc_std_abts_ba_rjt *ba_rjt;
+ uint16_t oxid;
+ struct fnic *fnic = iport->fnic;
+ int frame_type;
+
+ s_id = ntoh24(fchdr->fh_s_id);
+ ba_acc = (struct fc_std_abts_ba_acc *)fchdr;
+ ba_rjt = (struct fc_std_abts_ba_rjt *)fchdr;
+
+ tport = fnic_find_tport_by_fcid(iport, s_id);
+ if (!tport) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Received tgt abts rsp with invalid SID: 0x%x", s_id);
+ return;
+ }
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "tport 0x%p Canceling fabric disc timer\n", tport);
+ fnic_del_tport_timer_sync(fnic, tport);
+ }
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Received tgt abts rsp in iport state(%d). Dropping.",
+ iport->state);
+ return;
+ }
+ tport->timer_pending = 0;
+ tport->flags &= ~FNIC_FDLS_TGT_ABORT_ISSUED;
+ tport_state = tport->state;
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+
+ /*This abort rsp is for ADISC */
+ frame_type = FNIC_FRAME_TYPE(oxid);
+ switch (frame_type) {
+ case FNIC_FRAME_TYPE_TGT_ADISC:
+ if (fchdr->fh_r_ctl == FC_RCTL_BA_ACC) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "OX_ID: 0x%x tgt_fcid: 0x%x rcvd tgt adisc abts resp BA_ACC",
+ be16_to_cpu(ba_acc->acc.ba_ox_id),
+ tport->fcid);
+ } else if (fchdr->fh_r_ctl == FC_RCTL_BA_RJT) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "ADISC BA_RJT rcvd tport_fcid: 0x%x tport_state: %d ",
+ tport->fcid, tport_state);
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "reason code: 0x%x reason code explanation:0x%x ",
+ ba_rjt->rjt.br_reason,
+ ba_rjt->rjt.br_explan);
+ }
+ if ((tport->retry_counter < FDLS_RETRY_COUNT)
+ && (fchdr->fh_r_ctl == FC_RCTL_BA_ACC)) {
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ fdls_send_tgt_adisc(iport, tport);
+ return;
+ }
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "ADISC not responding. Deleting target port: 0x%x",
+ tport->fcid);
+ fdls_delete_tport(iport, tport);
+ /* Restart discovery of targets */
+ if ((iport->state == FNIC_IPORT_STATE_READY)
+ && (iport->fabric.state != FDLS_STATE_SEND_GPNFT)
+ && (iport->fabric.state != FDLS_STATE_RSCN_GPN_FT)) {
+ fdls_send_gpn_ft(iport, FDLS_STATE_SEND_GPNFT);
+ }
+ break;
+ case FNIC_FRAME_TYPE_TGT_PLOGI:
+ if (fchdr->fh_r_ctl == FC_RCTL_BA_ACC) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Received tgt PLOGI abts response BA_ACC tgt_fcid: 0x%x",
+ tport->fcid);
+ } else if (fchdr->fh_r_ctl == FC_RCTL_BA_RJT) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PLOGI BA_RJT received for tport_fcid: 0x%x OX_ID: 0x%x",
+ tport->fcid, FNIC_STD_GET_OX_ID(fchdr));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "reason code: 0x%x reason code explanation: 0x%x",
+ ba_rjt->rjt.br_reason,
+ ba_rjt->rjt.br_explan);
+ }
+ if ((tport->retry_counter < iport->max_plogi_retries)
+ && (fchdr->fh_r_ctl == FC_RCTL_BA_ACC)) {
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ fdls_send_tgt_plogi(iport, tport);
+ return;
+ }
+
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ fdls_delete_tport(iport, tport);
+ /* Restart discovery of targets */
+ if ((iport->state == FNIC_IPORT_STATE_READY)
+ && (iport->fabric.state != FDLS_STATE_SEND_GPNFT)
+ && (iport->fabric.state != FDLS_STATE_RSCN_GPN_FT)) {
+ fdls_send_gpn_ft(iport, FDLS_STATE_SEND_GPNFT);
+ }
+ break;
+ case FNIC_FRAME_TYPE_TGT_PRLI:
+ if (fchdr->fh_r_ctl == FC_RCTL_BA_ACC) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Received tgt PRLI abts response BA_ACC",
+ tport->fcid);
+ } else if (fchdr->fh_r_ctl == FC_RCTL_BA_RJT) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PRLI BA_RJT received for tport_fcid: 0x%x OX_ID: 0x%x ",
+ tport->fcid, FNIC_STD_GET_OX_ID(fchdr));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "reason code: 0x%x reason code explanation: 0x%x",
+ ba_rjt->rjt.br_reason,
+ ba_rjt->rjt.br_explan);
+ }
+ if ((tport->retry_counter < FDLS_RETRY_COUNT)
+ && (fchdr->fh_r_ctl == FC_RCTL_BA_ACC)) {
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ fdls_send_tgt_prli(iport, tport);
+ return;
+ }
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ fdls_send_tgt_plogi(iport, tport); /* go back to plogi */
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_PLOGI);
+ break;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received ABTS response for unknown frame %p", iport);
+ break;
+ }
+
+}
+
+static void
+fdls_process_plogi_req(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint8_t *frame;
+ struct fc_std_els_rjt_rsp *pplogi_rsp;
+ uint16_t oxid;
+ uint32_t d_id = ntoh24(fchdr->fh_d_id);
+ struct fnic *fnic = iport->fnic;
+ uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_rjt_rsp);
+
+ if (iport->fcid != d_id) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received PLOGI with illegal frame bits. Dropping frame from 0x%x",
+ d_id);
+ return;
+ }
+
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received PLOGI request in iport state: %d Dropping frame",
+ iport->state);
+ return;
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send response to PLOGI request");
+ return;
+ }
+
+ pplogi_rsp = (struct fc_std_els_rjt_rsp *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_els_rjt_frame(frame, iport);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: Process PLOGI request from SID: 0x%x",
+ iport->fcid, ntoh24(fchdr->fh_s_id));
+
+ /* We don't support PLOGI request, send a reject */
+ pplogi_rsp->rej.er_reason = 0x0B;
+ pplogi_rsp->rej.er_explan = 0x0;
+ pplogi_rsp->rej.er_vendor = 0x0;
+
+ FNIC_STD_SET_S_ID(pplogi_rsp->fchdr, fchdr->fh_d_id);
+ FNIC_STD_SET_D_ID(pplogi_rsp->fchdr, fchdr->fh_s_id);
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ FNIC_STD_SET_OX_ID(pplogi_rsp->fchdr, oxid);
+
+ fnic_send_fcoe_frame(iport, frame, frame_size);
+}
+
+static void
+fdls_process_logo_req(struct fnic_iport_s *iport, struct fc_frame_header *fchdr)
+{
+ struct fc_std_logo *logo = (struct fc_std_logo *)fchdr;
+ uint32_t nport_id;
+ uint64_t nport_name;
+ struct fnic_tport_s *tport;
+ struct fnic *fnic = iport->fnic;
+ uint16_t oxid;
+
+ nport_id = ntoh24(logo->els.fl_n_port_id);
+ nport_name = be64_to_cpu(logo->els.fl_n_port_wwn);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Process LOGO request from fcid: 0x%x", nport_id);
+
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Dropping LOGO req from 0x%x in iport state: %d",
+ nport_id, iport->state);
+ return;
+ }
+
+ tport = fnic_find_tport_by_fcid(iport, nport_id);
+
+ if (!tport) {
+ /* We are not logged in with the nport, log and drop... */
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Received LOGO from an nport not logged in: 0x%x(0x%llx)",
+ nport_id, nport_name);
+ return;
+ }
+ if (tport->fcid != nport_id) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Received LOGO with invalid target port fcid: 0x%x(0x%llx)",
+ nport_id, nport_name);
+ return;
+ }
+ if (tport->timer_pending) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "tport fcid 0x%x: Canceling disc timer\n",
+ tport->fcid);
+ fnic_del_tport_timer_sync(fnic, tport);
+ tport->timer_pending = 0;
+ }
+
+ /* got a logo in response to adisc to a target which has logged out */
+ if (tport->state == FDLS_TGT_STATE_ADISC) {
+ tport->retry_counter = 0;
+ oxid = tport->active_oxid;
+ fdls_free_oxid(iport, oxid, &tport->active_oxid);
+ fdls_delete_tport(iport, tport);
+ fdls_send_logo_resp(iport, &logo->fchdr);
+ if ((iport->state == FNIC_IPORT_STATE_READY)
+ && (fdls_get_state(&iport->fabric) != FDLS_STATE_SEND_GPNFT)
+ && (fdls_get_state(&iport->fabric) != FDLS_STATE_RSCN_GPN_FT)) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Sending GPNFT in response to LOGO from Target:0x%x",
+ nport_id);
+ fdls_send_gpn_ft(iport, FDLS_STATE_SEND_GPNFT);
+ return;
+ }
+ } else {
+ fdls_delete_tport(iport, tport);
+ }
+ if (iport->state == FNIC_IPORT_STATE_READY) {
+ fdls_send_logo_resp(iport, &logo->fchdr);
+ if ((fdls_get_state(&iport->fabric) != FDLS_STATE_SEND_GPNFT) &&
+ (fdls_get_state(&iport->fabric) != FDLS_STATE_RSCN_GPN_FT)) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Sending GPNFT in response to LOGO from Target:0x%x",
+ nport_id);
+ fdls_send_gpn_ft(iport, FDLS_STATE_SEND_GPNFT);
+ }
+ }
+}
+
+static void
+fdls_process_rscn(struct fnic_iport_s *iport, struct fc_frame_header *fchdr)
+{
+ struct fc_std_rscn *rscn;
+ struct fc_els_rscn_page *rscn_port = NULL;
+ int num_ports;
+ struct fnic_tport_s *tport, *next;
+ uint32_t nport_id;
+ uint8_t fcid[3];
+ int newports = 0;
+ struct fnic_fdls_fabric_s *fdls = &iport->fabric;
+ struct fnic *fnic = iport->fnic;
+ int rscn_type = NOT_PC_RSCN;
+ uint32_t sid = ntoh24(fchdr->fh_s_id);
+ unsigned long reset_fnic_list_lock_flags = 0;
+ uint16_t rscn_payload_len;
+
+ atomic64_inc(&iport->iport_stats.num_rscns);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS process RSCN %p", iport);
+
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS RSCN received in state(%d). Dropping",
+ fdls_get_state(fdls));
+ return;
+ }
+
+ rscn = (struct fc_std_rscn *)fchdr;
+ rscn_payload_len = be16_to_cpu(rscn->els.rscn_plen);
+
+ /* frame validation */
+ if ((rscn_payload_len % 4 != 0) || (rscn_payload_len < 8)
+ || (rscn_payload_len > 1024)
+ || (rscn->els.rscn_page_len != 4)) {
+ num_ports = 0;
+ if ((rscn_payload_len == 0xFFFF)
+ && (sid == FC_FID_FCTRL)) {
+ rscn_type = PC_RSCN;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "pcrscn: PCRSCN received. sid: 0x%x payload len: 0x%x",
+ sid, rscn_payload_len);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RSCN payload_len: 0x%x page_len: 0x%x",
+ rscn_payload_len, rscn->els.rscn_page_len);
+ /* if this happens then we need to send ADISC to all the tports. */
+ list_for_each_entry_safe(tport, next, &iport->tport_list, links) {
+ if (tport->state == FDLS_TGT_STATE_READY)
+ tport->flags |= FNIC_FDLS_TPORT_SEND_ADISC;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RSCN for port id: 0x%x", tport->fcid);
+ }
+ } /* end else */
+ } else {
+ num_ports = (rscn_payload_len - 4) / rscn->els.rscn_page_len;
+ rscn_port = (struct fc_els_rscn_page *)(rscn + 1);
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RSCN received for num_ports: %d payload_len: %d page_len: %d ",
+ num_ports, rscn_payload_len, rscn->els.rscn_page_len);
+
+ /*
+ * RSCN have at least one Port_ID page , but may not have any port_id
+ * in it. If no port_id is specified in the Port_ID page , we send
+ * ADISC to all the tports
+ */
+
+ while (num_ports) {
+
+ memcpy(fcid, rscn_port->rscn_fid, 3);
+
+ nport_id = ntoh24(fcid);
+ rscn_port++;
+ num_ports--;
+ /* if this happens then we need to send ADISC to all the tports. */
+ if (nport_id == 0) {
+ list_for_each_entry_safe(tport, next, &iport->tport_list,
+ links) {
+ if (tport->state == FDLS_TGT_STATE_READY)
+ tport->flags |= FNIC_FDLS_TPORT_SEND_ADISC;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RSCN for port id: 0x%x", tport->fcid);
+ }
+ break;
+ }
+ tport = fnic_find_tport_by_fcid(iport, nport_id);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "RSCN port id list: 0x%x", nport_id);
+
+ if (!tport) {
+ newports++;
+ continue;
+ }
+ if (tport->state == FDLS_TGT_STATE_READY)
+ tport->flags |= FNIC_FDLS_TPORT_SEND_ADISC;
+ }
+
+ if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON &&
+ rscn_type == PC_RSCN && fnic->role == FNIC_ROLE_FCP_INITIATOR) {
+
+ if (fnic->pc_rscn_handling_status == PC_RSCN_HANDLING_IN_PROGRESS) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PCRSCN handling already in progress. Skip host reset: %d",
+ iport->fnic->fnic_num);
+ return;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Processing PCRSCN. Queuing fnic for host reset: %d",
+ iport->fnic->fnic_num);
+ fnic->pc_rscn_handling_status = PC_RSCN_HANDLING_IN_PROGRESS;
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+
+ spin_lock_irqsave(&reset_fnic_list_lock,
+ reset_fnic_list_lock_flags);
+ list_add_tail(&fnic->links, &reset_fnic_list);
+ spin_unlock_irqrestore(&reset_fnic_list_lock,
+ reset_fnic_list_lock_flags);
+
+ queue_work(reset_fnic_work_queue, &reset_fnic_work);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FDLS process RSCN sending GPN_FT: newports: %d", newports);
+ fdls_send_gpn_ft(iport, FDLS_STATE_RSCN_GPN_FT);
+ fdls_send_rscn_resp(iport, fchdr);
+ }
+}
+
+void fnic_fdls_disc_start(struct fnic_iport_s *iport)
+{
+ struct fnic *fnic = iport->fnic;
+
+ fc_host_fabric_name(iport->fnic->host) = 0;
+ fc_host_post_event(iport->fnic->host, fc_get_event_number(),
+ FCH_EVT_LIPRESET, 0);
+
+ if (!iport->usefip) {
+ if (iport->flags & FNIC_FIRST_LINK_UP) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ fnic_scsi_fcpio_reset(iport->fnic);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+
+ iport->flags &= ~FNIC_FIRST_LINK_UP;
+ }
+ fnic_fdls_start_flogi(iport);
+ } else
+ fnic_fdls_start_plogi(iport);
+}
+
+static void
+fdls_process_adisc_req(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ struct fc_std_els_adisc *padisc_acc;
+ struct fc_std_els_adisc *adisc_req = (struct fc_std_els_adisc *)fchdr;
+ uint64_t frame_wwnn;
+ uint64_t frame_wwpn;
+ uint32_t tgt_fcid;
+ struct fnic_tport_s *tport;
+ uint8_t *fcid;
+ uint8_t *rjt_frame;
+ uint8_t *acc_frame;
+ struct fc_std_els_rjt_rsp *prjts_rsp;
+ uint16_t oxid;
+ struct fnic *fnic = iport->fnic;
+ uint16_t rjt_frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_rjt_rsp);
+ uint16_t acc_frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
+ sizeof(struct fc_std_els_adisc);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Process ADISC request %d", iport->fnic->fnic_num);
+
+ fcid = FNIC_STD_GET_S_ID(fchdr);
+ tgt_fcid = ntoh24(fcid);
+ tport = fnic_find_tport_by_fcid(iport, tgt_fcid);
+ if (!tport) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "tport for fcid: 0x%x not found. Dropping ADISC req.",
+ tgt_fcid);
+ return;
+ }
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Dropping ADISC req from fcid: 0x%x in iport state: %d",
+ tgt_fcid, iport->state);
+ return;
+ }
+
+ frame_wwnn = be64_to_cpu(adisc_req->els.adisc_wwnn);
+ frame_wwpn = be64_to_cpu(adisc_req->els.adisc_wwpn);
+
+ if ((frame_wwnn != tport->wwnn) || (frame_wwpn != tport->wwpn)) {
+ /* send reject */
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "ADISC req from fcid: 0x%x mismatch wwpn: 0x%llx wwnn: 0x%llx",
+ tgt_fcid, frame_wwpn, frame_wwnn);
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "local tport wwpn: 0x%llx wwnn: 0x%llx. Sending RJT",
+ tport->wwpn, tport->wwnn);
+
+ rjt_frame = fdls_alloc_frame(iport);
+ if (rjt_frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate rjt_frame to send response to ADISC request");
+ return;
+ }
+
+ prjts_rsp = (struct fc_std_els_rjt_rsp *) (rjt_frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+ fdls_init_els_rjt_frame(rjt_frame, iport);
+
+ prjts_rsp->rej.er_reason = 0x03; /* logical error */
+ prjts_rsp->rej.er_explan = 0x1E; /* N_port login required */
+ prjts_rsp->rej.er_vendor = 0x0;
+
+ FNIC_STD_SET_S_ID(prjts_rsp->fchdr, fchdr->fh_d_id);
+ FNIC_STD_SET_D_ID(prjts_rsp->fchdr, fchdr->fh_s_id);
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ FNIC_STD_SET_OX_ID(prjts_rsp->fchdr, oxid);
+
+ fnic_send_fcoe_frame(iport, rjt_frame, rjt_frame_size);
+ return;
+ }
+
+ acc_frame = fdls_alloc_frame(iport);
+ if (acc_frame == NULL) {
+ FNIC_FCS_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send ADISC accept");
+ return;
+ }
+
+ padisc_acc = (struct fc_std_els_adisc *) (acc_frame + FNIC_ETH_FCOE_HDRS_OFFSET);
+
+ FNIC_STD_SET_S_ID(padisc_acc->fchdr, fchdr->fh_d_id);
+ FNIC_STD_SET_D_ID(padisc_acc->fchdr, fchdr->fh_s_id);
+
+ FNIC_STD_SET_F_CTL(padisc_acc->fchdr, FNIC_ELS_REP_FCTL << 16);
+ FNIC_STD_SET_R_CTL(padisc_acc->fchdr, FC_RCTL_ELS_REP);
+ FNIC_STD_SET_TYPE(padisc_acc->fchdr, FC_TYPE_ELS);
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ FNIC_STD_SET_OX_ID(padisc_acc->fchdr, oxid);
+ FNIC_STD_SET_RX_ID(padisc_acc->fchdr, FNIC_UNASSIGNED_RXID);
+
+ padisc_acc->els.adisc_cmd = ELS_LS_ACC;
+
+ FNIC_STD_SET_NPORT_NAME(&padisc_acc->els.adisc_wwpn,
+ iport->wwpn);
+ FNIC_STD_SET_NODE_NAME(&padisc_acc->els.adisc_wwnn,
+ iport->wwnn);
+ memcpy(padisc_acc->els.adisc_port_id, fchdr->fh_d_id, 3);
+
+ fnic_send_fcoe_frame(iport, acc_frame, acc_frame_size);
+}
+
+/*
+ * Performs a validation for all FCOE frames and return the frame type
+ */
+int
+fnic_fdls_validate_and_get_frame_type(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr)
+{
+ uint8_t type;
+ uint8_t *fc_payload;
+ uint16_t oxid;
+ uint32_t s_id;
+ uint32_t d_id;
+ struct fnic *fnic = iport->fnic;
+ struct fnic_fdls_fabric_s *fabric = &iport->fabric;
+ int oxid_frame_type;
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ fc_payload = (uint8_t *) fchdr + sizeof(struct fc_frame_header);
+ type = *fc_payload;
+ s_id = ntoh24(fchdr->fh_s_id);
+ d_id = ntoh24(fchdr->fh_d_id);
+
+ /* some common validation */
+ if (fdls_get_state(fabric) > FDLS_STATE_FABRIC_FLOGI) {
+ if (iport->fcid != d_id || (!FNIC_FC_FRAME_CS_CTL(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "invalid frame received. Dropping frame");
+ return -1;
+ }
+ }
+
+ /* BLS ABTS response */
+ if ((fchdr->fh_r_ctl == FC_RCTL_BA_ACC)
+ || (fchdr->fh_r_ctl == FC_RCTL_BA_RJT)) {
+ if (!(FNIC_FC_FRAME_TYPE_BLS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received ABTS invalid frame. Dropping frame");
+ return -1;
+
+ }
+ if (fdls_is_oxid_fabric_req(oxid)) {
+ if (!(iport->fabric.flags & FNIC_FDLS_FABRIC_ABORT_ISSUED)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unexpected ABTS RSP(oxid:0x%x) from 0x%x. Dropping frame",
+ oxid, s_id);
+ return -1;
+ }
+ return FNIC_FABRIC_BLS_ABTS_RSP;
+ } else if (fdls_is_oxid_fdmi_req(oxid)) {
+ return FNIC_FDMI_BLS_ABTS_RSP;
+ } else if (fdls_is_oxid_tgt_req(oxid)) {
+ return FNIC_TPORT_BLS_ABTS_RSP;
+ }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received ABTS rsp with unknown oxid(0x%x) from 0x%x. Dropping frame",
+ oxid, s_id);
+ return -1;
+ }
+
+ /* BLS ABTS Req */
+ if ((fchdr->fh_r_ctl == FC_RCTL_BA_ABTS)
+ && (FNIC_FC_FRAME_TYPE_BLS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Receiving Abort Request from s_id: 0x%x", s_id);
+ return FNIC_BLS_ABTS_REQ;
+ }
+
+ /* unsolicited requests frames */
+ if (FNIC_FC_FRAME_UNSOLICITED(fchdr)) {
+ switch (type) {
+ case ELS_LOGO:
+ if ((!FNIC_FC_FRAME_FCTL_FIRST_LAST_SEQINIT(fchdr))
+ || (!FNIC_FC_FRAME_UNSOLICITED(fchdr))
+ || (!FNIC_FC_FRAME_TYPE_ELS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received LOGO invalid frame. Dropping frame");
+ return -1;
+ }
+ return FNIC_ELS_LOGO_REQ;
+ case ELS_RSCN:
+ if ((!FNIC_FC_FRAME_FCTL_FIRST_LAST_SEQINIT(fchdr))
+ || (!FNIC_FC_FRAME_TYPE_ELS(fchdr))
+ || (!FNIC_FC_FRAME_UNSOLICITED(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received RSCN invalid FCTL. Dropping frame");
+ return -1;
+ }
+ if (s_id != FC_FID_FCTRL)
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received RSCN from target FCTL: 0x%x type: 0x%x s_id: 0x%x.",
+ fchdr->fh_f_ctl[0], fchdr->fh_type, s_id);
+ return FNIC_ELS_RSCN_REQ;
+ case ELS_PLOGI:
+ return FNIC_ELS_PLOGI_REQ;
+ case ELS_ECHO:
+ return FNIC_ELS_ECHO_REQ;
+ case ELS_ADISC:
+ return FNIC_ELS_ADISC;
+ case ELS_RLS:
+ return FNIC_ELS_RLS;
+ case ELS_RRQ:
+ return FNIC_ELS_RRQ;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Unsupported frame (type:0x%02x) from fcid: 0x%x",
+ type, s_id);
+ return FNIC_ELS_UNSUPPORTED_REQ;
+ }
+ }
+
+ /* solicited response from fabric or target */
+ oxid_frame_type = FNIC_FRAME_TYPE(oxid);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "oxid frame code: 0x%x, oxid: 0x%x\n", oxid_frame_type, oxid);
+ switch (oxid_frame_type) {
+ case FNIC_FRAME_TYPE_FABRIC_FLOGI:
+ if (type == ELS_LS_ACC) {
+ if ((s_id != FC_FID_FLOGI)
+ || (!FNIC_FC_FRAME_TYPE_ELS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ }
+ return FNIC_FABRIC_FLOGI_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_PLOGI:
+ if (type == ELS_LS_ACC) {
+ if ((s_id != FC_FID_DIR_SERV)
+ || (!FNIC_FC_FRAME_TYPE_ELS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ }
+ return FNIC_FABRIC_PLOGI_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_SCR:
+ if (type == ELS_LS_ACC) {
+ if ((s_id != FC_FID_FCTRL)
+ || (!FNIC_FC_FRAME_TYPE_ELS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ }
+ return FNIC_FABRIC_SCR_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_RPN:
+ if ((s_id != FC_FID_DIR_SERV) || (!FNIC_FC_FRAME_TYPE_FC_GS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ return FNIC_FABRIC_RPN_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_RFT:
+ if ((s_id != FC_FID_DIR_SERV) || (!FNIC_FC_FRAME_TYPE_FC_GS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ return FNIC_FABRIC_RFT_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_RFF:
+ if ((s_id != FC_FID_DIR_SERV) || (!FNIC_FC_FRAME_TYPE_FC_GS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ return FNIC_FABRIC_RFF_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_GPN_FT:
+ if ((s_id != FC_FID_DIR_SERV) || (!FNIC_FC_FRAME_TYPE_FC_GS(fchdr))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown frame. Dropping frame");
+ return -1;
+ }
+ return FNIC_FABRIC_GPN_FT_RSP;
+
+ case FNIC_FRAME_TYPE_FABRIC_LOGO:
+ return FNIC_FABRIC_LOGO_RSP;
+ case FNIC_FRAME_TYPE_FDMI_PLOGI:
+ return FNIC_FDMI_PLOGI_RSP;
+ case FNIC_FRAME_TYPE_FDMI_RHBA:
+ return FNIC_FDMI_REG_HBA_RSP;
+ case FNIC_FRAME_TYPE_FDMI_RPA:
+ return FNIC_FDMI_RPA_RSP;
+ case FNIC_FRAME_TYPE_TGT_PLOGI:
+ return FNIC_TPORT_PLOGI_RSP;
+ case FNIC_FRAME_TYPE_TGT_PRLI:
+ return FNIC_TPORT_PRLI_RSP;
+ case FNIC_FRAME_TYPE_TGT_ADISC:
+ return FNIC_TPORT_ADISC_RSP;
+ case FNIC_FRAME_TYPE_TGT_LOGO:
+ if (!FNIC_FC_FRAME_TYPE_ELS(fchdr)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping Unknown frame in tport solicited exchange range type: 0x%x.",
+ fchdr->fh_type);
+ return -1;
+ }
+ return FNIC_TPORT_LOGO_RSP;
+ default:
+ /* Drop the Rx frame and log/stats it */
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Solicited response: unknown OXID: 0x%x", oxid);
+ return -1;
+ }
+
+ return -1;
+}
+
+void fnic_fdls_recv_frame(struct fnic_iport_s *iport, void *rx_frame,
+ int len, int fchdr_offset)
+{
+ struct fc_frame_header *fchdr;
+ uint32_t s_id = 0;
+ uint32_t d_id = 0;
+ struct fnic *fnic = iport->fnic;
+ int frame_type;
+
+ fchdr = (struct fc_frame_header *) ((uint8_t *) rx_frame + fchdr_offset);
+ s_id = ntoh24(fchdr->fh_s_id);
+ d_id = ntoh24(fchdr->fh_d_id);
+
+ fnic_debug_dump_fc_frame(fnic, fchdr, len, "Incoming");
+
+ frame_type =
+ fnic_fdls_validate_and_get_frame_type(iport, fchdr);
+
+ /*if we are in flogo drop everything else */
+ if (iport->fabric.state == FDLS_STATE_FABRIC_LOGO &&
+ frame_type != FNIC_FABRIC_LOGO_RSP)
+ return;
+
+ switch (frame_type) {
+ case FNIC_FABRIC_FLOGI_RSP:
+ fdls_process_flogi_rsp(iport, fchdr, rx_frame);
+ break;
+ case FNIC_FABRIC_PLOGI_RSP:
+ fdls_process_fabric_plogi_rsp(iport, fchdr);
+ break;
+ case FNIC_FDMI_PLOGI_RSP:
+ fdls_process_fdmi_plogi_rsp(iport, fchdr);
+ break;
+ case FNIC_FABRIC_RPN_RSP:
+ fdls_process_rpn_id_rsp(iport, fchdr);
+ break;
+ case FNIC_FABRIC_RFT_RSP:
+ fdls_process_rft_id_rsp(iport, fchdr);
+ break;
+ case FNIC_FABRIC_RFF_RSP:
+ fdls_process_rff_id_rsp(iport, fchdr);
+ break;
+ case FNIC_FABRIC_SCR_RSP:
+ fdls_process_scr_rsp(iport, fchdr);
+ break;
+ case FNIC_FABRIC_GPN_FT_RSP:
+ fdls_process_gpn_ft_rsp(iport, fchdr, len);
+ break;
+ case FNIC_TPORT_PLOGI_RSP:
+ fdls_process_tgt_plogi_rsp(iport, fchdr);
+ break;
+ case FNIC_TPORT_PRLI_RSP:
+ fdls_process_tgt_prli_rsp(iport, fchdr);
+ break;
+ case FNIC_TPORT_ADISC_RSP:
+ fdls_process_tgt_adisc_rsp(iport, fchdr);
+ break;
+ case FNIC_TPORT_BLS_ABTS_RSP:
+ fdls_process_tgt_abts_rsp(iport, fchdr);
+ break;
+ case FNIC_TPORT_LOGO_RSP:
+ /* Logo response from tgt which we have deleted */
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Logo response from tgt: 0x%x",
+ ntoh24(fchdr->fh_s_id));
+ break;
+ case FNIC_FABRIC_LOGO_RSP:
+ fdls_process_fabric_logo_rsp(iport, fchdr);
+ break;
+ case FNIC_FABRIC_BLS_ABTS_RSP:
+ fdls_process_fabric_abts_rsp(iport, fchdr);
+ break;
+ case FNIC_FDMI_BLS_ABTS_RSP:
+ fdls_process_fdmi_abts_rsp(iport, fchdr);
+ break;
+ case FNIC_BLS_ABTS_REQ:
+ fdls_process_abts_req(iport, fchdr);
+ break;
+ case FNIC_ELS_UNSUPPORTED_REQ:
+ fdls_process_unsupported_els_req(iport, fchdr);
+ break;
+ case FNIC_ELS_PLOGI_REQ:
+ fdls_process_plogi_req(iport, fchdr);
+ break;
+ case FNIC_ELS_RSCN_REQ:
+ fdls_process_rscn(iport, fchdr);
+ break;
+ case FNIC_ELS_LOGO_REQ:
+ fdls_process_logo_req(iport, fchdr);
+ break;
+ case FNIC_ELS_RRQ:
+ case FNIC_ELS_ECHO_REQ:
+ fdls_process_els_req(iport, fchdr, len);
+ break;
+ case FNIC_ELS_ADISC:
+ fdls_process_adisc_req(iport, fchdr);
+ break;
+ case FNIC_ELS_RLS:
+ fdls_process_rls_req(iport, fchdr);
+ break;
+ case FNIC_FDMI_REG_HBA_RSP:
+ case FNIC_FDMI_RPA_RSP:
+ fdls_process_fdmi_reg_ack(iport, fchdr, frame_type);
+ break;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "s_id: 0x%x d_did: 0x%x", s_id, d_id);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Received unknown FCoE frame of len: %d. Dropping frame", len);
+ break;
+ }
+}
+
+void fnic_fdls_disc_init(struct fnic_iport_s *iport)
+{
+ fdls_reset_oxid_pool(iport);
+ fdls_set_state((&iport->fabric), FDLS_STATE_INIT);
+}
+
+void fnic_fdls_link_down(struct fnic_iport_s *iport)
+{
+ struct fnic_tport_s *tport, *next;
+ struct fnic *fnic = iport->fnic;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS processing link down", iport->fcid);
+
+ fdls_set_state((&iport->fabric), FDLS_STATE_LINKDOWN);
+ iport->fabric.flags = 0;
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ fnic_scsi_fcpio_reset(iport->fnic);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ list_for_each_entry_safe(tport, next, &iport->tport_list, links) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "removing rport: 0x%x", tport->fcid);
+ fdls_delete_tport(iport, tport);
+ }
+
+ if ((fnic_fdmi_support == 1) && (iport->fabric.fdmi_pending > 0)) {
+ timer_delete_sync(&iport->fabric.fdmi_timer);
+ iport->fabric.fdmi_pending = 0;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "0x%x: FDLS finish processing link down", iport->fcid);
+}
diff --git a/drivers/scsi/fnic/fdls_fc.h b/drivers/scsi/fnic/fdls_fc.h
new file mode 100644
index 000000000000..012f43afd083
--- /dev/null
+++ b/drivers/scsi/fnic/fdls_fc.h
@@ -0,0 +1,253 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ */
+
+#ifndef _FDLS_FC_H_
+#define _FDLS_FC_H_
+
+/* This file contains the declarations for FC fabric services
+ * and target discovery
+ *
+ * Request and Response for
+ * 1. FLOGI
+ * 2. PLOGI to Fabric Controller
+ * 3. GPN_ID, GPN_FT
+ * 4. RSCN
+ * 5. PLOGI to Target
+ * 6. PRLI to Target
+ */
+
+#include <scsi/scsi.h>
+#include <scsi/fc/fc_els.h>
+#include <uapi/scsi/fc/fc_fs.h>
+#include <uapi/scsi/fc/fc_ns.h>
+#include <uapi/scsi/fc/fc_gs.h>
+#include <uapi/linux/if_ether.h>
+#include <scsi/fc/fc_ms.h>
+#include <linux/minmax.h>
+#include <linux/if_ether.h>
+#include <scsi/fc/fc_encaps.h>
+#include <scsi/fc/fc_fcoe.h>
+
+#define FDLS_MIN_FRAMES (32)
+#define FDLS_MIN_FRAME_ELEM (4)
+#define FNIC_FCP_SP_RD_XRDY_DIS 0x00000002
+#define FNIC_FCP_SP_TARGET 0x00000010
+#define FNIC_FCP_SP_INITIATOR 0x00000020
+#define FNIC_FCP_SP_CONF_CMPL 0x00000080
+#define FNIC_FCP_SP_RETRY 0x00000100
+
+#define FNIC_FC_CONCUR_SEQS (0xFF)
+#define FNIC_FC_RO_INFO (0x1F)
+
+/* Little Endian */
+#define FNIC_UNASSIGNED_OXID (0xffff)
+#define FNIC_UNASSIGNED_RXID (0xffff)
+#define FNIC_ELS_REQ_FCTL (0x000029)
+#define FNIC_ELS_REP_FCTL (0x000099)
+
+#define FNIC_FCP_RSP_FCTL (0x000099)
+#define FNIC_REQ_ABTS_FCTL (0x000009)
+
+#define FNIC_FC_PH_VER_HI (0x20)
+#define FNIC_FC_PH_VER_LO (0x20)
+#define FNIC_FC_PH_VER (0x2020)
+#define FNIC_FC_B2B_CREDIT (0x0A)
+#define FNIC_FC_B2B_RDF_SZ (0x0800)
+
+#define FNIC_LOGI_RDF_SIZE(_logi) ((_logi).fl_csp.sp_bb_data)
+#define FNIC_LOGI_R_A_TOV(_logi) ((_logi).fl_csp.sp_r_a_tov)
+#define FNIC_LOGI_E_D_TOV(_logi) ((_logi).fl_csp.sp_e_d_tov)
+#define FNIC_LOGI_FEATURES(_logi) (be16_to_cpu((_logi).fl_csp.sp_features))
+#define FNIC_LOGI_PORT_NAME(_logi) ((_logi).fl_wwpn)
+#define FNIC_LOGI_NODE_NAME(_logi) ((_logi).fl_wwnn)
+
+#define FNIC_LOGI_SET_RDF_SIZE(_logi, _rdf_size) \
+ (FNIC_LOGI_RDF_SIZE(_logi) = cpu_to_be16(_rdf_size))
+#define FNIC_LOGI_SET_E_D_TOV(_logi, _e_d_tov) \
+ (FNIC_LOGI_E_D_TOV(_logi) = cpu_to_be32(_e_d_tov))
+#define FNIC_LOGI_SET_R_A_TOV(_logi, _r_a_tov) \
+ (FNIC_LOGI_R_A_TOV(_logi) = cpu_to_be32(_r_a_tov))
+
+#define FNIC_STD_SET_S_ID(_fchdr, _sid) memcpy((_fchdr).fh_s_id, _sid, 3)
+#define FNIC_STD_SET_D_ID(_fchdr, _did) memcpy((_fchdr).fh_d_id, _did, 3)
+#define FNIC_STD_SET_OX_ID(_fchdr, _oxid) ((_fchdr).fh_ox_id = cpu_to_be16(_oxid))
+#define FNIC_STD_SET_RX_ID(_fchdr, _rxid) ((_fchdr).fh_rx_id = cpu_to_be16(_rxid))
+
+#define FNIC_STD_SET_R_CTL(_fchdr, _rctl) ((_fchdr).fh_r_ctl = _rctl)
+#define FNIC_STD_SET_TYPE(_fchdr, _type) ((_fchdr).fh_type = _type)
+#define FNIC_STD_SET_F_CTL(_fchdr, _fctl) \
+ put_unaligned_be24(_fctl, &((_fchdr).fh_f_ctl))
+
+#define FNIC_STD_SET_NPORT_NAME(_ptr, _wwpn) put_unaligned_be64(_wwpn, _ptr)
+#define FNIC_STD_SET_NODE_NAME(_ptr, _wwnn) put_unaligned_be64(_wwnn, _ptr)
+#define FNIC_STD_SET_PORT_ID(__req, __portid) \
+ memcpy(__req.fr_fid.fp_fid, __portid, 3)
+#define FNIC_STD_SET_PORT_NAME(_req, _pName) \
+ (put_unaligned_be64(_pName, &_req.fr_wwn))
+
+#define FNIC_STD_GET_OX_ID(_fchdr) (be16_to_cpu((_fchdr)->fh_ox_id))
+#define FNIC_STD_GET_RX_ID(_fchdr) (be16_to_cpu((_fchdr)->fh_rx_id))
+#define FNIC_STD_GET_S_ID(_fchdr) ((_fchdr)->fh_s_id)
+#define FNIC_STD_GET_D_ID(_fchdr) ((_fchdr)->fh_d_id)
+#define FNIC_STD_GET_TYPE(_fchdr) ((_fchdr)->fh_type)
+#define FNIC_STD_GET_F_CTL(_fchdr) ((_fchdr)->fh_f_ctl)
+#define FNIC_STD_GET_R_CTL(_fchdr) ((_fchdr)->fh_r_ctl)
+
+#define FNIC_STD_GET_FC_CT_CMD(__fcct_hdr) (be16_to_cpu(__fcct_hdr->ct_cmd))
+
+#define FNIC_FCOE_MAX_FRAME_SZ (2048)
+#define FNIC_FCOE_MIN_FRAME_SZ (280)
+#define FNIC_FC_MAX_PAYLOAD_LEN (2048)
+#define FNIC_MIN_DATA_FIELD_SIZE (256)
+
+#define FNIC_FC_EDTOV_NSEC (0x400)
+#define FNIC_NSEC_TO_MSEC (0x1000000)
+#define FCP_PRLI_FUNC_TARGET (0x0010)
+
+#define FNIC_FC_R_CTL_SOLICITED_DATA (0x21)
+#define FNIC_FC_F_CTL_LAST_END_SEQ (0x98)
+#define FNIC_FC_F_CTL_LAST_END_SEQ_INT (0x99)
+#define FNIC_FC_F_CTL_FIRST_LAST_SEQINIT (0x29)
+#define FNIC_FC_R_CTL_FC4_SCTL (0x03)
+#define FNIC_FC_CS_CTL (0x00)
+
+#define FNIC_FC_FRAME_UNSOLICITED(_fchdr) \
+ (_fchdr->fh_r_ctl == FC_RCTL_ELS_REQ)
+#define FNIC_FC_FRAME_SOLICITED_DATA(_fchdr) \
+ (_fchdr->fh_r_ctl == FNIC_FC_R_CTL_SOLICITED_DATA)
+#define FNIC_FC_FRAME_SOLICITED_CTRL_REPLY(_fchdr) \
+ (_fchdr->fh_r_ctl == FC_RCTL_ELS_REP)
+#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ(_fchdr) \
+ (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ)
+#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ_INT(_fchdr) \
+ (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ_INT)
+#define FNIC_FC_FRAME_FCTL_FIRST_LAST_SEQINIT(_fchdr) \
+ (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_FIRST_LAST_SEQINIT)
+#define FNIC_FC_FRAME_FC4_SCTL(_fchdr) \
+ (_fchdr->fh_r_ctl == FNIC_FC_R_CTL_FC4_SCTL)
+#define FNIC_FC_FRAME_TYPE_BLS(_fchdr) (_fchdr->fh_type == FC_TYPE_BLS)
+#define FNIC_FC_FRAME_TYPE_ELS(_fchdr) (_fchdr->fh_type == FC_TYPE_ELS)
+#define FNIC_FC_FRAME_TYPE_FC_GS(_fchdr) (_fchdr->fh_type == FC_TYPE_CT)
+#define FNIC_FC_FRAME_CS_CTL(_fchdr) (_fchdr->fh_cs_ctl == FNIC_FC_CS_CTL)
+
+#define FNIC_FC_C3_RDF (0xfff)
+#define FNIC_FC_PLOGI_RSP_RDF(_plogi_rsp) \
+ (min(_plogi_rsp->u.csp_plogi.b2b_rdf_size, \
+ (_plogi_rsp->spc3[4] & FNIC_FC_C3_RDF)))
+#define FNIC_FC_PLOGI_RSP_CONCUR_SEQ(_plogi_rsp) \
+ (min((uint16_t) (be16_to_cpu(_plogi_rsp->els.fl_csp.sp_tot_seq)), \
+ (uint16_t) (be16_to_cpu(_plogi_rsp->els.fl_cssp[2].cp_con_seq) & 0xff)))
+
+/* FLOGI/PLOGI struct */
+struct fc_std_flogi {
+ struct fc_frame_header fchdr;
+ struct fc_els_flogi els;
+} __packed;
+
+struct fc_std_els_acc_rsp {
+ struct fc_frame_header fchdr;
+ struct fc_els_ls_acc acc;
+} __packed;
+
+struct fc_std_els_rjt_rsp {
+ struct fc_frame_header fchdr;
+ struct fc_els_ls_rjt rej;
+} __packed;
+
+struct fc_std_els_adisc {
+ struct fc_frame_header fchdr;
+ struct fc_els_adisc els;
+} __packed;
+
+struct fc_std_rls_acc {
+ struct fc_frame_header fchdr;
+ struct fc_els_rls_resp els;
+} __packed;
+
+struct fc_std_abts_ba_acc {
+ struct fc_frame_header fchdr;
+ struct fc_ba_acc acc;
+} __packed;
+
+struct fc_std_abts_ba_rjt {
+ struct fc_frame_header fchdr;
+ struct fc_ba_rjt rjt;
+} __packed;
+
+struct fc_std_els_prli {
+ struct fc_frame_header fchdr;
+ struct fc_els_prli els_prli;
+ struct fc_els_spp sp;
+} __packed;
+
+struct fc_std_rpn_id {
+ struct fc_frame_header fchdr;
+ struct fc_ct_hdr fc_std_ct_hdr;
+ struct fc_ns_rn_id rpn_id;
+} __packed;
+
+struct fc_std_fdmi_rhba {
+ struct fc_frame_header fchdr;
+ struct fc_ct_hdr fc_std_ct_hdr;
+ struct fc_fdmi_rhba rhba;
+} __packed;
+
+struct fc_std_fdmi_rpa {
+ struct fc_frame_header fchdr;
+ struct fc_ct_hdr fc_std_ct_hdr;
+ struct fc_fdmi_rpa rpa;
+} __packed;
+
+struct fc_std_rft_id {
+ struct fc_frame_header fchdr;
+ struct fc_ct_hdr fc_std_ct_hdr;
+ struct fc_ns_rft_id rft_id;
+} __packed;
+
+struct fc_std_rff_id {
+ struct fc_frame_header fchdr;
+ struct fc_ct_hdr fc_std_ct_hdr;
+ struct fc_ns_rff_id rff_id;
+} __packed;
+
+struct fc_std_gpn_ft {
+ struct fc_frame_header fchdr;
+ struct fc_ct_hdr fc_std_ct_hdr;
+ struct fc_ns_gid_ft gpn_ft;
+} __packed;
+
+/* Accept CT_IU for GPN_FT */
+struct fc_gpn_ft_rsp_iu {
+ uint8_t ctrl;
+ uint8_t fcid[3];
+ uint32_t rsvd;
+ __be64 wwpn;
+} __packed;
+
+struct fc_std_rls {
+ struct fc_frame_header fchdr;
+ struct fc_els_rls els;
+} __packed;
+
+struct fc_std_scr {
+ struct fc_frame_header fchdr;
+ struct fc_els_scr scr;
+} __packed;
+
+struct fc_std_rscn {
+ struct fc_frame_header fchdr;
+ struct fc_els_rscn els;
+} __packed;
+
+struct fc_std_logo {
+ struct fc_frame_header fchdr;
+ struct fc_els_logo els;
+} __packed;
+
+#define FNIC_ETH_FCOE_HDRS_OFFSET \
+ (sizeof(struct ethhdr) + sizeof(struct fcoe_hdr))
+
+#endif /* _FDLS_FC_H */
diff --git a/drivers/scsi/fnic/fip.c b/drivers/scsi/fnic/fip.c
new file mode 100644
index 000000000000..19395e2aee44
--- /dev/null
+++ b/drivers/scsi/fnic/fip.c
@@ -0,0 +1,1005 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ */
+#include "fnic.h"
+#include "fip.h"
+#include <linux/etherdevice.h>
+
+#define FIP_FNIC_RESET_WAIT_COUNT 15
+
+/**
+ * fnic_fcoe_reset_vlans - Free up the list of discovered vlans
+ * @fnic: Handle to fnic driver instance
+ */
+void fnic_fcoe_reset_vlans(struct fnic *fnic)
+{
+ unsigned long flags;
+ struct fcoe_vlan *vlan, *next;
+
+ spin_lock_irqsave(&fnic->vlans_lock, flags);
+ if (!list_empty(&fnic->vlan_list)) {
+ list_for_each_entry_safe(vlan, next, &fnic->vlan_list, list) {
+ list_del(&vlan->list);
+ kfree(vlan);
+ }
+ }
+
+ spin_unlock_irqrestore(&fnic->vlans_lock, flags);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Reset vlan complete\n");
+}
+
+/**
+ * fnic_fcoe_send_vlan_req - Send FIP vlan request to all FCFs MAC
+ * @fnic: Handle to fnic driver instance
+ */
+void fnic_fcoe_send_vlan_req(struct fnic *fnic)
+{
+ uint8_t *frame;
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+ u64 vlan_tov;
+ struct fip_vlan_req *pvlan_req;
+ uint16_t frame_size = sizeof(struct fip_vlan_req);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FIP_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send VLAN req");
+ return;
+ }
+
+ fnic_fcoe_reset_vlans(fnic);
+
+ fnic->set_vlan(fnic, 0);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "set vlan done\n");
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "got MAC 0x%x:%x:%x:%x:%x:%x\n", iport->hwmac[0],
+ iport->hwmac[1], iport->hwmac[2], iport->hwmac[3],
+ iport->hwmac[4], iport->hwmac[5]);
+
+ pvlan_req = (struct fip_vlan_req *) frame;
+ *pvlan_req = (struct fip_vlan_req) {
+ .eth = {.h_dest = FCOE_ALL_FCFS_MAC,
+ .h_proto = cpu_to_be16(ETH_P_FIP)},
+ .fip = {.fip_ver = FIP_VER_ENCAPS(FIP_VER),
+ .fip_op = cpu_to_be16(FIP_OP_VLAN),
+ .fip_subcode = FIP_SC_REQ,
+ .fip_dl_len = cpu_to_be16(FIP_VLAN_REQ_LEN)},
+ .mac_desc = {.fd_desc = {.fip_dtype = FIP_DT_MAC,
+ .fip_dlen = 2}}
+ };
+
+ memcpy(pvlan_req->eth.h_source, iport->hwmac, ETH_ALEN);
+ memcpy(pvlan_req->mac_desc.fd_mac, iport->hwmac, ETH_ALEN);
+
+ atomic64_inc(&fnic_stats->vlan_stats.vlan_disc_reqs);
+
+ iport->fip.state = FDLS_FIP_VLAN_DISCOVERY_STARTED;
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Send VLAN req\n");
+ fnic_send_fip_frame(iport, frame, frame_size);
+
+ vlan_tov = jiffies + msecs_to_jiffies(FCOE_CTLR_FIPVLAN_TOV);
+ mod_timer(&fnic->retry_fip_timer, round_jiffies(vlan_tov));
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fip timer set\n");
+}
+
+/**
+ * fnic_fcoe_process_vlan_resp - Processes the vlan response from one FCF and
+ * populates VLAN list.
+ * @fnic: Handle to fnic driver instance
+ * @fiph: Received FIP frame
+ *
+ * Will wait for responses from multiple FCFs until timeout.
+ */
+void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct fip_header *fiph)
+{
+ struct fip_vlan_notif *vlan_notif = (struct fip_vlan_notif *)fiph;
+
+ struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+ u16 vid;
+ int num_vlan = 0;
+ int cur_desc, desc_len;
+ struct fcoe_vlan *vlan;
+ struct fip_vlan_desc *vlan_desc;
+ unsigned long flags;
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p got vlan resp\n", fnic);
+
+ desc_len = be16_to_cpu(vlan_notif->fip.fip_dl_len);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "desc_len %d\n", desc_len);
+
+ spin_lock_irqsave(&fnic->vlans_lock, flags);
+
+ cur_desc = 0;
+ while (desc_len > 0) {
+ vlan_desc =
+ (struct fip_vlan_desc *)(((char *)vlan_notif->vlans_desc)
+ + cur_desc * 4);
+
+ if (vlan_desc->fd_desc.fip_dtype == FIP_DT_VLAN) {
+ if (vlan_desc->fd_desc.fip_dlen != 1) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "Invalid descriptor length(%x) in VLan response\n",
+ vlan_desc->fd_desc.fip_dlen);
+
+ }
+ num_vlan++;
+ vid = be16_to_cpu(vlan_desc->fd_vlan);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "process_vlan_resp: FIP VLAN %d\n", vid);
+ vlan = kzalloc(sizeof(*vlan), GFP_KERNEL);
+
+ if (!vlan) {
+ /* retry from timer */
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "Mem Alloc failure\n");
+ spin_unlock_irqrestore(&fnic->vlans_lock,
+ flags);
+ goto out;
+ }
+ vlan->vid = vid & 0x0fff;
+ vlan->state = FIP_VLAN_AVAIL;
+ list_add_tail(&vlan->list, &fnic->vlan_list);
+ break;
+ }
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "Invalid descriptor type(%x) in VLan response\n",
+ vlan_desc->fd_desc.fip_dtype);
+ /*
+ * Note : received a type=2 descriptor here i.e. FIP
+ * MAC Address Descriptor
+ */
+ cur_desc += vlan_desc->fd_desc.fip_dlen;
+ desc_len -= vlan_desc->fd_desc.fip_dlen;
+ }
+
+ /* any VLAN descriptors present ? */
+ if (num_vlan == 0) {
+ atomic64_inc(&fnic_stats->vlan_stats.resp_withno_vlanID);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p No VLAN descriptors in FIP VLAN response\n",
+ fnic);
+ }
+
+ spin_unlock_irqrestore(&fnic->vlans_lock, flags);
+
+ out:
+ return;
+}
+
+/**
+ * fnic_fcoe_start_fcf_discovery - Start FIP FCF discovery in a selected vlan
+ * @fnic: Handle to fnic driver instance
+ */
+void fnic_fcoe_start_fcf_discovery(struct fnic *fnic)
+{
+ uint8_t *frame;
+ struct fnic_iport_s *iport = &fnic->iport;
+ u64 fcs_tov;
+ struct fip_discovery *pdisc_sol;
+ uint16_t frame_size = sizeof(struct fip_discovery);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FIP_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to start FCF discovery");
+ return;
+ }
+
+ eth_zero_addr(iport->selected_fcf.fcf_mac);
+
+ pdisc_sol = (struct fip_discovery *) frame;
+ *pdisc_sol = (struct fip_discovery) {
+ .eth = {.h_dest = FCOE_ALL_FCFS_MAC,
+ .h_proto = cpu_to_be16(ETH_P_FIP)},
+ .fip = {
+ .fip_ver = FIP_VER_ENCAPS(FIP_VER), .fip_op = cpu_to_be16(FIP_OP_DISC),
+ .fip_subcode = FIP_SC_REQ, .fip_dl_len = cpu_to_be16(FIP_DISC_SOL_LEN),
+ .fip_flags = cpu_to_be16(FIP_FL_FPMA)},
+ .mac_desc = {.fd_desc = {.fip_dtype = FIP_DT_MAC, .fip_dlen = 2}},
+ .name_desc = {.fd_desc = {.fip_dtype = FIP_DT_NAME, .fip_dlen = 3}},
+ .fcoe_desc = {.fd_desc = {.fip_dtype = FIP_DT_FCOE_SIZE, .fip_dlen = 1},
+ .fd_size = cpu_to_be16(FCOE_MAX_SIZE)}
+ };
+
+ memcpy(pdisc_sol->eth.h_source, iport->hwmac, ETH_ALEN);
+ memcpy(pdisc_sol->mac_desc.fd_mac, iport->hwmac, ETH_ALEN);
+ iport->selected_fcf.fcf_priority = 0xFF;
+
+ FNIC_STD_SET_NODE_NAME(&pdisc_sol->name_desc.fd_wwn, iport->wwnn);
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Start FCF discovery\n");
+ fnic_send_fip_frame(iport, frame, frame_size);
+
+ iport->fip.state = FDLS_FIP_FCF_DISCOVERY_STARTED;
+
+ fcs_tov = jiffies + msecs_to_jiffies(FCOE_CTLR_FCS_TOV);
+ mod_timer(&fnic->retry_fip_timer, round_jiffies(fcs_tov));
+}
+
+/**
+ * fnic_fcoe_fip_discovery_resp - Processes FCF advertisements.
+ * @fnic: Handle to fnic driver instance
+ * @fiph: Received frame
+ *
+ * FCF advertisements can be:
+ * solicited - Sent in response of a discover FCF FIP request
+ * Store the information of the FCF with highest priority.
+ * Wait until timeout in case of multiple FCFs.
+ *
+ * unsolicited - Sent periodically by the FCF for keep alive.
+ * If FLOGI is in progress or completed and the advertisement is
+ * received by our selected FCF, refresh the keep alive timer.
+ */
+void fnic_fcoe_fip_discovery_resp(struct fnic *fnic, struct fip_header *fiph)
+{
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fip_disc_adv *disc_adv = (struct fip_disc_adv *)fiph;
+ u64 fcs_ka_tov;
+ u64 tov;
+ int fka_has_changed;
+
+ switch (iport->fip.state) {
+ case FDLS_FIP_FCF_DISCOVERY_STARTED:
+ if (be16_to_cpu(disc_adv->fip.fip_flags) & FIP_FL_SOL) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "fnic 0x%p Solicited adv\n", fnic);
+
+ if ((disc_adv->prio_desc.fd_pri <
+ iport->selected_fcf.fcf_priority)
+ && (be16_to_cpu(disc_adv->fip.fip_flags) & FIP_FL_AVAIL)) {
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "fnic 0x%p FCF Available\n", fnic);
+ memcpy(iport->selected_fcf.fcf_mac,
+ disc_adv->mac_desc.fd_mac, ETH_ALEN);
+ iport->selected_fcf.fcf_priority =
+ disc_adv->prio_desc.fd_pri;
+ iport->selected_fcf.fka_adv_period =
+ be32_to_cpu(disc_adv->fka_adv_desc.fd_fka_period);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num, "adv time %d",
+ iport->selected_fcf.fka_adv_period);
+ iport->selected_fcf.ka_disabled =
+ (disc_adv->fka_adv_desc.fd_flags & 1);
+ }
+ }
+ break;
+ case FDLS_FIP_FLOGI_STARTED:
+ case FDLS_FIP_FLOGI_COMPLETE:
+ if (!(be16_to_cpu(disc_adv->fip.fip_flags) & FIP_FL_SOL)) {
+ /* same fcf */
+ if (memcmp
+ (iport->selected_fcf.fcf_mac,
+ disc_adv->mac_desc.fd_mac, ETH_ALEN) == 0) {
+ if (iport->selected_fcf.fka_adv_period !=
+ be32_to_cpu(disc_adv->fka_adv_desc.fd_fka_period)) {
+ iport->selected_fcf.fka_adv_period =
+ be32_to_cpu(disc_adv->fka_adv_desc.fd_fka_period);
+ FNIC_FIP_DBG(KERN_INFO,
+ fnic->host,
+ fnic->fnic_num,
+ "change fka to %d",
+ iport->selected_fcf.fka_adv_period);
+ }
+
+ fka_has_changed =
+ (iport->selected_fcf.ka_disabled == 1)
+ && ((disc_adv->fka_adv_desc.fd_flags & 1) ==
+ 0);
+
+ iport->selected_fcf.ka_disabled =
+ (disc_adv->fka_adv_desc.fd_flags & 1);
+ if (!((iport->selected_fcf.ka_disabled)
+ || (iport->selected_fcf.fka_adv_period ==
+ 0))) {
+
+ fcs_ka_tov = jiffies
+ + 3
+ *
+ msecs_to_jiffies(iport->selected_fcf.fka_adv_period);
+ mod_timer(&fnic->fcs_ka_timer,
+ round_jiffies(fcs_ka_tov));
+ } else {
+ if (timer_pending(&fnic->fcs_ka_timer))
+ timer_delete_sync(&fnic->fcs_ka_timer);
+ }
+
+ if (fka_has_changed) {
+ if (iport->selected_fcf.fka_adv_period != 0) {
+ tov =
+ jiffies +
+ msecs_to_jiffies(
+ iport->selected_fcf.fka_adv_period);
+ mod_timer(&fnic->enode_ka_timer,
+ round_jiffies(tov));
+
+ tov =
+ jiffies +
+ msecs_to_jiffies
+ (FIP_VN_KA_PERIOD);
+ mod_timer(&fnic->vn_ka_timer,
+ round_jiffies(tov));
+ }
+ }
+ }
+ }
+ break;
+ default:
+ break;
+ } /* end switch */
+}
+
+/**
+ * fnic_fcoe_start_flogi - Send FIP FLOGI to the selected FCF
+ * @fnic: Handle to fnic driver instance
+ */
+void fnic_fcoe_start_flogi(struct fnic *fnic)
+{
+ uint8_t *frame;
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fip_flogi *pflogi_req;
+ u64 flogi_tov;
+ uint16_t oxid;
+ uint16_t frame_size = sizeof(struct fip_flogi);
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FIP_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to start FIP FLOGI");
+ return;
+ }
+
+ pflogi_req = (struct fip_flogi *) frame;
+ *pflogi_req = (struct fip_flogi) {
+ .eth = {
+ .h_proto = cpu_to_be16(ETH_P_FIP)},
+ .fip = {
+ .fip_ver = FIP_VER_ENCAPS(FIP_VER),
+ .fip_op = cpu_to_be16(FIP_OP_LS),
+ .fip_subcode = FIP_SC_REQ,
+ .fip_dl_len = cpu_to_be16(FIP_FLOGI_LEN),
+ .fip_flags = cpu_to_be16(FIP_FL_FPMA)},
+ .flogi_desc = {
+ .fd_desc = {.fip_dtype = FIP_DT_FLOGI, .fip_dlen = 36},
+ .flogi = {
+ .fchdr = {
+ .fh_r_ctl = FC_RCTL_ELS_REQ,
+ .fh_d_id = {0xFF, 0xFF, 0xFE},
+ .fh_type = FC_TYPE_ELS,
+ .fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
+ .fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)},
+ .els = {
+ .fl_cmd = ELS_FLOGI,
+ .fl_csp = {
+ .sp_hi_ver =
+ FNIC_FC_PH_VER_HI,
+ .sp_lo_ver =
+ FNIC_FC_PH_VER_LO,
+ .sp_bb_cred =
+ cpu_to_be16
+ (FNIC_FC_B2B_CREDIT),
+ .sp_bb_data =
+ cpu_to_be16
+ (FNIC_FC_B2B_RDF_SZ)},
+ .fl_cssp[2].cp_class =
+ cpu_to_be16(FC_CPC_VALID | FC_CPC_SEQ)
+ },
+ }
+ },
+ .mac_desc = {.fd_desc = {.fip_dtype = FIP_DT_MAC, .fip_dlen = 2}}
+ };
+
+ memcpy(pflogi_req->eth.h_source, iport->hwmac, ETH_ALEN);
+ if (iport->usefip)
+ memcpy(pflogi_req->eth.h_dest, iport->selected_fcf.fcf_mac,
+ ETH_ALEN);
+
+ oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FABRIC_FLOGI,
+ &iport->active_oxid_fabric_req);
+ if (oxid == FNIC_UNASSIGNED_OXID) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Failed to allocate OXID to send FIP FLOGI");
+ mempool_free(frame, fnic->frame_pool);
+ return;
+ }
+ FNIC_STD_SET_OX_ID(pflogi_req->flogi_desc.flogi.fchdr, oxid);
+
+ FNIC_STD_SET_NPORT_NAME(&pflogi_req->flogi_desc.flogi.els.fl_wwpn,
+ iport->wwpn);
+ FNIC_STD_SET_NODE_NAME(&pflogi_req->flogi_desc.flogi.els.fl_wwnn,
+ iport->wwnn);
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FIP start FLOGI\n");
+ fnic_send_fip_frame(iport, frame, frame_size);
+ iport->fip.flogi_retry++;
+
+ iport->fip.state = FDLS_FIP_FLOGI_STARTED;
+ flogi_tov = jiffies + msecs_to_jiffies(fnic->config.flogi_timeout);
+ mod_timer(&fnic->retry_fip_timer, round_jiffies(flogi_tov));
+}
+
+/**
+ * fnic_fcoe_process_flogi_resp - Processes FLOGI response from FCF.
+ * @fnic: Handle to fnic driver instance
+ * @fiph: Received frame
+ *
+ * If successful save assigned fc_id and MAC, program firmware
+ * and start fdls discovery, else restart vlan discovery.
+ */
+void fnic_fcoe_process_flogi_resp(struct fnic *fnic, struct fip_header *fiph)
+{
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fip_flogi_rsp *flogi_rsp = (struct fip_flogi_rsp *)fiph;
+ int desc_len;
+ uint32_t s_id;
+ int frame_type;
+ uint16_t oxid;
+
+ struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+ struct fc_frame_header *fchdr = &flogi_rsp->rsp_desc.flogi.fchdr;
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p FIP FLOGI rsp\n", fnic);
+ desc_len = be16_to_cpu(flogi_rsp->fip.fip_dl_len);
+ if (desc_len != 38) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Invalid Descriptor List len (%x). Dropping frame\n",
+ desc_len);
+ return;
+ }
+
+ if (!((flogi_rsp->rsp_desc.fd_desc.fip_dtype == 7)
+ && (flogi_rsp->rsp_desc.fd_desc.fip_dlen == 36))
+ || !((flogi_rsp->mac_desc.fd_desc.fip_dtype == 2)
+ && (flogi_rsp->mac_desc.fd_desc.fip_dlen == 2))) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping frame invalid type and len mix\n");
+ return;
+ }
+
+ frame_type = fnic_fdls_validate_and_get_frame_type(iport, fchdr);
+
+ s_id = ntoh24(fchdr->fh_s_id);
+ if ((fchdr->fh_f_ctl[0] != 0x98)
+ || (fchdr->fh_r_ctl != 0x23)
+ || (s_id != FC_FID_FLOGI)
+ || (frame_type != FNIC_FABRIC_FLOGI_RSP)
+ || (fchdr->fh_type != 0x01)) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping invalid frame: s_id %x F %x R %x t %x OX_ID %x\n",
+ s_id, fchdr->fh_f_ctl[0], fchdr->fh_r_ctl,
+ fchdr->fh_type, FNIC_STD_GET_OX_ID(fchdr));
+ return;
+ }
+
+ if (iport->fip.state == FDLS_FIP_FLOGI_STARTED) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p rsp for pending FLOGI\n", fnic);
+
+ oxid = FNIC_STD_GET_OX_ID(fchdr);
+ fdls_free_oxid(iport, oxid, &iport->active_oxid_fabric_req);
+ timer_delete_sync(&fnic->retry_fip_timer);
+
+ if ((be16_to_cpu(flogi_rsp->fip.fip_dl_len) == FIP_FLOGI_LEN)
+ && (flogi_rsp->rsp_desc.flogi.els.fl_cmd == ELS_LS_ACC)) {
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "fnic 0x%p FLOGI success\n", fnic);
+ memcpy(iport->fpma, flogi_rsp->mac_desc.fd_mac, ETH_ALEN);
+ iport->fcid =
+ ntoh24(flogi_rsp->rsp_desc.flogi.fchdr.fh_d_id);
+
+ iport->r_a_tov =
+ be32_to_cpu(flogi_rsp->rsp_desc.flogi.els.fl_csp.sp_r_a_tov);
+ iport->e_d_tov =
+ be32_to_cpu(flogi_rsp->rsp_desc.flogi.els.fl_csp.sp_e_d_tov);
+ memcpy(fnic->iport.fcfmac, iport->selected_fcf.fcf_mac,
+ ETH_ALEN);
+ vnic_dev_add_addr(fnic->vdev, flogi_rsp->mac_desc.fd_mac);
+
+ if (fnic_fdls_register_portid(iport, iport->fcid, NULL)
+ != 0) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "fnic 0x%p flogi registration failed\n",
+ fnic);
+ return;
+ }
+
+ iport->fip.state = FDLS_FIP_FLOGI_COMPLETE;
+ iport->state = FNIC_IPORT_STATE_FABRIC_DISC;
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num, "iport->state:%d\n",
+ iport->state);
+ fnic_fdls_disc_start(iport);
+ if (!((iport->selected_fcf.ka_disabled)
+ || (iport->selected_fcf.fka_adv_period == 0))) {
+ u64 tov;
+
+ tov = jiffies
+ +
+ msecs_to_jiffies(iport->selected_fcf.fka_adv_period);
+ mod_timer(&fnic->enode_ka_timer,
+ round_jiffies(tov));
+
+ tov =
+ jiffies +
+ msecs_to_jiffies(FIP_VN_KA_PERIOD);
+ mod_timer(&fnic->vn_ka_timer,
+ round_jiffies(tov));
+
+ }
+ } else {
+ /*
+ * If there's FLOGI rejects - clear all
+ * fcf's & restart from scratch
+ */
+ atomic64_inc(&fnic_stats->vlan_stats.flogi_rejects);
+ /* start FCoE VLAN discovery */
+ fnic_fcoe_send_vlan_req(fnic);
+
+ iport->fip.state = FDLS_FIP_VLAN_DISCOVERY_STARTED;
+ }
+ }
+}
+
+/**
+ * fnic_common_fip_cleanup - Clean up FCF info and timers in case of
+ * link down/CVL
+ * @fnic: Handle to fnic driver instance
+ */
+void fnic_common_fip_cleanup(struct fnic *fnic)
+{
+
+ struct fnic_iport_s *iport = &fnic->iport;
+
+ if (!iport->usefip)
+ return;
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p fip cleanup\n", fnic);
+
+ iport->fip.state = FDLS_FIP_INIT;
+
+ timer_delete_sync(&fnic->retry_fip_timer);
+ timer_delete_sync(&fnic->fcs_ka_timer);
+ timer_delete_sync(&fnic->enode_ka_timer);
+ timer_delete_sync(&fnic->vn_ka_timer);
+
+ if (!is_zero_ether_addr(iport->fpma))
+ vnic_dev_del_addr(fnic->vdev, iport->fpma);
+
+ eth_zero_addr(iport->fpma);
+ iport->fcid = 0;
+ iport->r_a_tov = 0;
+ iport->e_d_tov = 0;
+ eth_zero_addr(fnic->iport.fcfmac);
+ eth_zero_addr(iport->selected_fcf.fcf_mac);
+ iport->selected_fcf.fcf_priority = 0;
+ iport->selected_fcf.fka_adv_period = 0;
+ iport->selected_fcf.ka_disabled = 0;
+
+ fnic_fcoe_reset_vlans(fnic);
+}
+
+/**
+ * fnic_fcoe_process_cvl - Processes Clear Virtual Link from FCF.
+ * @fnic: Handle to fnic driver instance
+ * @fiph: Received frame
+ *
+ * Verify that cvl is received from our current FCF for our assigned MAC
+ * and clean up and restart the vlan discovery.
+ */
+void fnic_fcoe_process_cvl(struct fnic *fnic, struct fip_header *fiph)
+{
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fip_cvl *cvl_msg = (struct fip_cvl *)fiph;
+ int i;
+ int found = false;
+ int max_count = 0;
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p clear virtual link handler\n", fnic);
+
+ if (!((cvl_msg->fcf_mac_desc.fd_desc.fip_dtype == 2)
+ && (cvl_msg->fcf_mac_desc.fd_desc.fip_dlen == 2))
+ || !((cvl_msg->name_desc.fd_desc.fip_dtype == 4)
+ && (cvl_msg->name_desc.fd_desc.fip_dlen == 3))) {
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "invalid mix: ft %x fl %x ndt %x ndl %x",
+ cvl_msg->fcf_mac_desc.fd_desc.fip_dtype,
+ cvl_msg->fcf_mac_desc.fd_desc.fip_dlen,
+ cvl_msg->name_desc.fd_desc.fip_dtype,
+ cvl_msg->name_desc.fd_desc.fip_dlen);
+ }
+
+ if (memcmp
+ (iport->selected_fcf.fcf_mac, cvl_msg->fcf_mac_desc.fd_mac, ETH_ALEN)
+ == 0) {
+ for (i = 0; i < ((be16_to_cpu(fiph->fip_dl_len) / 5) - 1); i++) {
+ if (!((cvl_msg->vn_ports_desc[i].fd_desc.fip_dtype == 11)
+ && (cvl_msg->vn_ports_desc[i].fd_desc.fip_dlen == 5))) {
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num,
+ "Invalid type and len mix type: %d len: %d\n",
+ cvl_msg->vn_ports_desc[i].fd_desc.fip_dtype,
+ cvl_msg->vn_ports_desc[i].fd_desc.fip_dlen);
+ }
+ if (memcmp
+ (iport->fpma, cvl_msg->vn_ports_desc[i].fd_mac,
+ ETH_ALEN) == 0) {
+ found = true;
+ break;
+ }
+ }
+ if (!found)
+ return;
+ fnic_common_fip_cleanup(fnic);
+
+ while (fnic->reset_in_progress == IN_PROGRESS) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ wait_for_completion_timeout(&fnic->reset_completion_wait,
+ msecs_to_jiffies(5000));
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ max_count++;
+ if (max_count >= FIP_FNIC_RESET_WAIT_COUNT) {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Rthr waited too long. Skipping handle link event %p\n",
+ fnic);
+ return;
+ }
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic reset in progress. Link event needs to wait %p",
+ fnic);
+ }
+ fnic->reset_in_progress = IN_PROGRESS;
+ fnic_fdls_link_down(iport);
+ fnic->reset_in_progress = NOT_IN_PROGRESS;
+ complete(&fnic->reset_completion_wait);
+ fnic_fcoe_send_vlan_req(fnic);
+ }
+}
+
+/**
+ * fdls_fip_recv_frame - Demultiplexer for FIP frames
+ * @fnic: Handle to fnic driver instance
+ * @frame: Received ethernet frame
+ */
+int fdls_fip_recv_frame(struct fnic *fnic, void *frame)
+{
+ struct ethhdr *eth = (struct ethhdr *)frame;
+ struct fip_header *fiph;
+ u16 op;
+ u8 sub;
+ int len = 2048;
+
+ if (be16_to_cpu(eth->h_proto) == ETH_P_FIP) {
+ fiph = (struct fip_header *)(eth + 1);
+ op = be16_to_cpu(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ fnic_debug_dump_fip_frame(fnic, eth, len, "Incoming");
+
+ if (op == FIP_OP_DISC && sub == FIP_SC_REP)
+ fnic_fcoe_fip_discovery_resp(fnic, fiph);
+ else if (op == FIP_OP_VLAN && sub == FIP_SC_REP)
+ fnic_fcoe_process_vlan_resp(fnic, fiph);
+ else if (op == FIP_OP_CTRL && sub == FIP_SC_REP)
+ fnic_fcoe_process_cvl(fnic, fiph);
+ else if (op == FIP_OP_LS && sub == FIP_SC_REP)
+ fnic_fcoe_process_flogi_resp(fnic, fiph);
+
+ /* Return true if the frame was a FIP frame */
+ return true;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Not a FIP Frame");
+ return false;
+}
+
+void fnic_work_on_fip_timer(struct work_struct *work)
+{
+ struct fnic *fnic = container_of(work, struct fnic, fip_timer_work);
+ struct fnic_iport_s *iport = &fnic->iport;
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FIP timeout\n");
+
+ if (iport->fip.state == FDLS_FIP_VLAN_DISCOVERY_STARTED) {
+ fnic_vlan_discovery_timeout(fnic);
+ } else if (iport->fip.state == FDLS_FIP_FCF_DISCOVERY_STARTED) {
+ u8 zmac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FCF Discovery timeout\n");
+ if (memcmp(iport->selected_fcf.fcf_mac, zmac, ETH_ALEN) != 0) {
+
+ if (iport->flags & FNIC_FIRST_LINK_UP) {
+ fnic_scsi_fcpio_reset(iport->fnic);
+ iport->flags &= ~FNIC_FIRST_LINK_UP;
+ }
+
+ fnic_fcoe_start_flogi(fnic);
+ if (!((iport->selected_fcf.ka_disabled)
+ || (iport->selected_fcf.fka_adv_period == 0))) {
+ u64 fcf_tov;
+
+ fcf_tov = jiffies
+ + 3
+ *
+ msecs_to_jiffies(iport->selected_fcf.fka_adv_period);
+ mod_timer(&fnic->fcs_ka_timer,
+ round_jiffies(fcf_tov));
+ }
+ } else {
+ FNIC_FIP_DBG(KERN_INFO, fnic->host,
+ fnic->fnic_num, "FCF Discovery timeout\n");
+ fnic_vlan_discovery_timeout(fnic);
+ }
+ } else if (iport->fip.state == FDLS_FIP_FLOGI_STARTED) {
+ fdls_schedule_oxid_free(iport, &iport->active_oxid_fabric_req);
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI timeout\n");
+ if (iport->fip.flogi_retry < fnic->config.flogi_retries)
+ fnic_fcoe_start_flogi(fnic);
+ else
+ fnic_vlan_discovery_timeout(fnic);
+ }
+}
+
+/**
+ * fnic_handle_fip_timer - Timeout handler for FIP discover phase.
+ * @t: Handle to the timer list
+ *
+ * Based on the current state, start next phase or restart discovery.
+ */
+void fnic_handle_fip_timer(struct timer_list *t)
+{
+ struct fnic *fnic = from_timer(fnic, t, retry_fip_timer);
+
+ INIT_WORK(&fnic->fip_timer_work, fnic_work_on_fip_timer);
+ queue_work(fnic_fip_queue, &fnic->fip_timer_work);
+}
+
+/**
+ * fnic_handle_enode_ka_timer - FIP node keep alive.
+ * @t: Handle to the timer list
+ */
+void fnic_handle_enode_ka_timer(struct timer_list *t)
+{
+ uint8_t *frame;
+ struct fnic *fnic = from_timer(fnic, t, enode_ka_timer);
+
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fip_enode_ka *penode_ka;
+ u64 enode_ka_tov;
+ uint16_t frame_size = sizeof(struct fip_enode_ka);
+
+ if (iport->fip.state != FDLS_FIP_FLOGI_COMPLETE)
+ return;
+
+ if ((iport->selected_fcf.ka_disabled)
+ || (iport->selected_fcf.fka_adv_period == 0)) {
+ return;
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FIP_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send enode ka");
+ return;
+ }
+
+ penode_ka = (struct fip_enode_ka *) frame;
+ *penode_ka = (struct fip_enode_ka) {
+ .eth = {
+ .h_proto = cpu_to_be16(ETH_P_FIP)},
+ .fip = {
+ .fip_ver = FIP_VER_ENCAPS(FIP_VER),
+ .fip_op = cpu_to_be16(FIP_OP_CTRL),
+ .fip_subcode = FIP_SC_REQ,
+ .fip_dl_len = cpu_to_be16(FIP_ENODE_KA_LEN)},
+ .mac_desc = {.fd_desc = {.fip_dtype = FIP_DT_MAC, .fip_dlen = 2}}
+ };
+
+ memcpy(penode_ka->eth.h_source, iport->hwmac, ETH_ALEN);
+ memcpy(penode_ka->eth.h_dest, iport->selected_fcf.fcf_mac, ETH_ALEN);
+ memcpy(penode_ka->mac_desc.fd_mac, iport->hwmac, ETH_ALEN);
+
+ FNIC_FIP_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Handle enode KA timer\n");
+ fnic_send_fip_frame(iport, frame, frame_size);
+ enode_ka_tov = jiffies
+ + msecs_to_jiffies(iport->selected_fcf.fka_adv_period);
+ mod_timer(&fnic->enode_ka_timer, round_jiffies(enode_ka_tov));
+}
+
+/**
+ * fnic_handle_vn_ka_timer - FIP virtual port keep alive.
+ * @t: Handle to the timer list
+ */
+void fnic_handle_vn_ka_timer(struct timer_list *t)
+{
+ uint8_t *frame;
+ struct fnic *fnic = from_timer(fnic, t, vn_ka_timer);
+
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fip_vn_port_ka *pvn_port_ka;
+ u64 vn_ka_tov;
+ uint8_t fcid[3];
+ uint16_t frame_size = sizeof(struct fip_vn_port_ka);
+
+ if (iport->fip.state != FDLS_FIP_FLOGI_COMPLETE)
+ return;
+
+ if ((iport->selected_fcf.ka_disabled)
+ || (iport->selected_fcf.fka_adv_period == 0)) {
+ return;
+ }
+
+ frame = fdls_alloc_frame(iport);
+ if (frame == NULL) {
+ FNIC_FIP_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Failed to allocate frame to send vn ka");
+ return;
+ }
+
+ pvn_port_ka = (struct fip_vn_port_ka *) frame;
+ *pvn_port_ka = (struct fip_vn_port_ka) {
+ .eth = {
+ .h_proto = cpu_to_be16(ETH_P_FIP)},
+ .fip = {
+ .fip_ver = FIP_VER_ENCAPS(FIP_VER),
+ .fip_op = cpu_to_be16(FIP_OP_CTRL),
+ .fip_subcode = FIP_SC_REQ,
+ .fip_dl_len = cpu_to_be16(FIP_VN_KA_LEN)},
+ .mac_desc = {.fd_desc = {.fip_dtype = FIP_DT_MAC, .fip_dlen = 2}},
+ .vn_port_desc = {.fd_desc = {.fip_dtype = FIP_DT_VN_ID, .fip_dlen = 5}}
+ };
+
+ memcpy(pvn_port_ka->eth.h_source, iport->fpma, ETH_ALEN);
+ memcpy(pvn_port_ka->eth.h_dest, iport->selected_fcf.fcf_mac, ETH_ALEN);
+ memcpy(pvn_port_ka->mac_desc.fd_mac, iport->hwmac, ETH_ALEN);
+ memcpy(pvn_port_ka->vn_port_desc.fd_mac, iport->fpma, ETH_ALEN);
+ hton24(fcid, iport->fcid);
+ memcpy(pvn_port_ka->vn_port_desc.fd_fc_id, fcid, 3);
+ FNIC_STD_SET_NPORT_NAME(&pvn_port_ka->vn_port_desc.fd_wwpn, iport->wwpn);
+
+ FNIC_FIP_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Handle vnport KA timer\n");
+ fnic_send_fip_frame(iport, frame, frame_size);
+ vn_ka_tov = jiffies + msecs_to_jiffies(FIP_VN_KA_PERIOD);
+ mod_timer(&fnic->vn_ka_timer, round_jiffies(vn_ka_tov));
+}
+
+/**
+ * fnic_vlan_discovery_timeout - Handle vlan discovery timeout
+ * @fnic: Handle to fnic driver instance
+ *
+ * End of VLAN discovery or FCF discovery time window.
+ * Start the FCF discovery if VLAN was never used.
+ */
+void fnic_vlan_discovery_timeout(struct fnic *fnic)
+{
+ struct fcoe_vlan *vlan;
+ struct fnic_iport_s *iport = &fnic->iport;
+ struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+ unsigned long flags;
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if (fnic->stop_rx_link_events) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ if (!iport->usefip)
+ return;
+
+ spin_lock_irqsave(&fnic->vlans_lock, flags);
+ if (list_empty(&fnic->vlan_list)) {
+ /* no vlans available, try again */
+ spin_unlock_irqrestore(&fnic->vlans_lock, flags);
+ fnic_fcoe_send_vlan_req(fnic);
+ return;
+ }
+
+ vlan = list_first_entry(&fnic->vlan_list, struct fcoe_vlan, list);
+
+ if (vlan->state == FIP_VLAN_SENT) {
+ if (vlan->sol_count >= FCOE_CTLR_MAX_SOL) {
+ /*
+ * no response on this vlan, remove from the list.
+ * Try the next vlan
+ */
+ list_del(&vlan->list);
+ kfree(vlan);
+ vlan = NULL;
+ if (list_empty(&fnic->vlan_list)) {
+ /* we exhausted all vlans, restart vlan disc */
+ spin_unlock_irqrestore(&fnic->vlans_lock,
+ flags);
+ fnic_fcoe_send_vlan_req(fnic);
+ return;
+ }
+ /* check the next vlan */
+ vlan =
+ list_first_entry(&fnic->vlan_list, struct fcoe_vlan,
+ list);
+
+ fnic->set_vlan(fnic, vlan->vid);
+ vlan->state = FIP_VLAN_SENT; /* sent now */
+
+ }
+ atomic64_inc(&fnic_stats->vlan_stats.sol_expiry_count);
+
+ } else {
+ fnic->set_vlan(fnic, vlan->vid);
+ vlan->state = FIP_VLAN_SENT; /* sent now */
+ }
+ vlan->sol_count++;
+ spin_unlock_irqrestore(&fnic->vlans_lock, flags);
+ fnic_fcoe_start_fcf_discovery(fnic);
+}
+
+/**
+ * fnic_work_on_fcs_ka_timer - Handle work on FCS keep alive timer.
+ * @work: the work queue to be serviced
+ *
+ * Finish handling fcs_ka_timer in process context.
+ * Clean up, bring the link down, and restart all FIP discovery.
+ */
+void fnic_work_on_fcs_ka_timer(struct work_struct *work)
+{
+ struct fnic
+ *fnic = container_of(work, struct fnic, fip_timer_work);
+ struct fnic_iport_s *iport = &fnic->iport;
+
+ FNIC_FIP_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p fcs ka timeout\n", fnic);
+
+ fnic_common_fip_cleanup(fnic);
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ fnic_fdls_link_down(iport);
+ iport->state = FNIC_IPORT_STATE_FIP;
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+
+ fnic_fcoe_send_vlan_req(fnic);
+}
+
+/**
+ * fnic_handle_fcs_ka_timer - Handle FCS keep alive timer.
+ * @t: Handle to the timer list
+ *
+ * No keep alives received from FCF. Clean up, bring the link down
+ * and restart all the FIP discovery.
+ */
+void fnic_handle_fcs_ka_timer(struct timer_list *t)
+{
+ struct fnic *fnic = from_timer(fnic, t, fcs_ka_timer);
+
+ INIT_WORK(&fnic->fip_timer_work, fnic_work_on_fcs_ka_timer);
+ queue_work(fnic_fip_queue, &fnic->fip_timer_work);
+}
diff --git a/drivers/scsi/fnic/fip.h b/drivers/scsi/fnic/fip.h
new file mode 100644
index 000000000000..79fee7628870
--- /dev/null
+++ b/drivers/scsi/fnic/fip.h
@@ -0,0 +1,159 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ */
+#ifndef _FIP_H_
+#define _FIP_H_
+
+#include "fdls_fc.h"
+#include "fnic_fdls.h"
+#include <scsi/fc/fc_fip.h>
+
+/* Drop the cast from the standard definition */
+#define FCOE_ALL_FCFS_MAC {0x01, 0x10, 0x18, 0x01, 0x00, 0x02}
+#define FCOE_MAX_SIZE 0x082E
+
+#define FCOE_CTLR_FIPVLAN_TOV (3*1000)
+#define FCOE_CTLR_FCS_TOV (3*1000)
+#define FCOE_CTLR_MAX_SOL (5*1000)
+
+#define FIP_DISC_SOL_LEN (6)
+#define FIP_VLAN_REQ_LEN (2)
+#define FIP_ENODE_KA_LEN (2)
+#define FIP_VN_KA_LEN (7)
+#define FIP_FLOGI_LEN (38)
+
+enum fdls_vlan_state {
+ FIP_VLAN_AVAIL,
+ FIP_VLAN_SENT
+};
+
+enum fdls_fip_state {
+ FDLS_FIP_INIT,
+ FDLS_FIP_VLAN_DISCOVERY_STARTED,
+ FDLS_FIP_FCF_DISCOVERY_STARTED,
+ FDLS_FIP_FLOGI_STARTED,
+ FDLS_FIP_FLOGI_COMPLETE,
+};
+
+/*
+ * VLAN entry.
+ */
+struct fcoe_vlan {
+ struct list_head list;
+ uint16_t vid; /* vlan ID */
+ uint16_t sol_count; /* no. of sols sent */
+ uint16_t state; /* state */
+};
+
+struct fip_vlan_req {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct fip_mac_desc mac_desc;
+} __packed;
+
+struct fip_vlan_notif {
+ struct fip_header fip;
+ struct fip_vlan_desc vlans_desc[];
+} __packed;
+
+struct fip_vn_port_ka {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct fip_mac_desc mac_desc;
+ struct fip_vn_desc vn_port_desc;
+} __packed;
+
+struct fip_enode_ka {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct fip_mac_desc mac_desc;
+} __packed;
+
+struct fip_cvl {
+ struct fip_header fip;
+ struct fip_mac_desc fcf_mac_desc;
+ struct fip_wwn_desc name_desc;
+ struct fip_vn_desc vn_ports_desc[];
+} __packed;
+
+struct fip_flogi_desc {
+ struct fip_desc fd_desc;
+ uint16_t rsvd;
+ struct fc_std_flogi flogi;
+} __packed;
+
+struct fip_flogi_rsp_desc {
+ struct fip_desc fd_desc;
+ uint16_t rsvd;
+ struct fc_std_flogi flogi;
+} __packed;
+
+struct fip_flogi {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct fip_flogi_desc flogi_desc;
+ struct fip_mac_desc mac_desc;
+} __packed;
+
+struct fip_flogi_rsp {
+ struct fip_header fip;
+ struct fip_flogi_rsp_desc rsp_desc;
+ struct fip_mac_desc mac_desc;
+} __packed;
+
+struct fip_discovery {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct fip_mac_desc mac_desc;
+ struct fip_wwn_desc name_desc;
+ struct fip_size_desc fcoe_desc;
+} __packed;
+
+struct fip_disc_adv {
+ struct fip_header fip;
+ struct fip_pri_desc prio_desc;
+ struct fip_mac_desc mac_desc;
+ struct fip_wwn_desc name_desc;
+ struct fip_fab_desc fabric_desc;
+ struct fip_fka_desc fka_adv_desc;
+} __packed;
+
+void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct fip_header *fiph);
+void fnic_fcoe_fip_discovery_resp(struct fnic *fnic, struct fip_header *fiph);
+void fnic_fcoe_process_flogi_resp(struct fnic *fnic, struct fip_header *fiph);
+void fnic_work_on_fip_timer(struct work_struct *work);
+void fnic_work_on_fcs_ka_timer(struct work_struct *work);
+void fnic_fcoe_send_vlan_req(struct fnic *fnic);
+void fnic_fcoe_start_fcf_discovery(struct fnic *fnic);
+void fnic_fcoe_start_flogi(struct fnic *fnic);
+void fnic_fcoe_process_cvl(struct fnic *fnic, struct fip_header *fiph);
+void fnic_vlan_discovery_timeout(struct fnic *fnic);
+
+extern struct workqueue_struct *fnic_fip_queue;
+
+#ifdef FNIC_DEBUG
+static inline void
+fnic_debug_dump_fip_frame(struct fnic *fnic, struct ethhdr *eth,
+ int len, char *pfx)
+{
+ struct fip_header *fiph = (struct fip_header *)(eth + 1);
+ u16 op = be16_to_cpu(fiph->fip_op);
+ u8 sub = fiph->fip_subcode;
+
+ FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "FIP %s packet contents: op: 0x%x sub: 0x%x (len = %d)",
+ pfx, op, sub, len);
+
+ fnic_debug_dump(fnic, (uint8_t *)eth, len);
+}
+
+#else /* FNIC_DEBUG */
+
+static inline void
+fnic_debug_dump_fip_frame(struct fnic *fnic, struct ethhdr *eth,
+ int len, char *pfx) {}
+#endif /* FNIC_DEBUG */
+
+#endif /* _FIP_H_ */
diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h
index ce73f08ee889..6c5f6046b1f5 100644
--- a/drivers/scsi/fnic/fnic.h
+++ b/drivers/scsi/fnic/fnic.h
@@ -10,8 +10,10 @@
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#include <linux/bitops.h>
-#include <scsi/libfc.h>
-#include <scsi/libfcoe.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc_frame.h>
#include "fnic_io.h"
#include "fnic_res.h"
#include "fnic_trace.h"
@@ -24,13 +26,15 @@
#include "vnic_intr.h"
#include "vnic_stats.h"
#include "vnic_scsi.h"
+#include "fnic_fdls.h"
#define DRV_NAME "fnic"
#define DRV_DESCRIPTION "Cisco FCoE HBA Driver"
-#define DRV_VERSION "1.7.0.0"
+#define DRV_VERSION "1.8.0.0"
#define PFX DRV_NAME ": "
#define DFX DRV_NAME "%d: "
+#define FABRIC_LOGO_MAX_RETRY 3
#define DESC_CLEAN_LOW_WATERMARK 8
#define FNIC_UCSM_DFLT_THROTTLE_CNT_BLD 16 /* UCSM default throttle count */
#define FNIC_MIN_IO_REQ 256 /* Min IO throttle count */
@@ -38,6 +42,7 @@
#define FNIC_DFLT_IO_REQ 256 /* Default scsi_cmnd tag map entries */
#define FNIC_DFLT_QUEUE_DEPTH 256
#define FNIC_STATS_RATE_LIMIT 4 /* limit rate at which stats are pulled up */
+#define LUN0_DELAY_TIME 9
/*
* Tag bits used for special requests.
@@ -75,6 +80,77 @@
#define FNIC_DEV_RST_TERM_DONE BIT(20)
#define FNIC_DEV_RST_ABTS_PENDING BIT(21)
+#define FNIC_FW_RESET_TIMEOUT 60000 /* mSec */
+#define FNIC_FCOE_MAX_CMD_LEN 16
+/* Retry supported by rport (returned by PRLI service parameters) */
+#define FNIC_FC_RP_FLAGS_RETRY 0x1
+
+/* Cisco vendor id */
+#define PCI_VENDOR_ID_CISCO 0x1137
+#define PCI_DEVICE_ID_CISCO_VIC_FC 0x0045 /* fc vnic */
+
+/* sereno pcie switch */
+#define PCI_DEVICE_ID_CISCO_SERENO 0x004e
+#define PCI_DEVICE_ID_CISCO_CRUZ 0x007a /* Cruz */
+#define PCI_DEVICE_ID_CISCO_BODEGA 0x0131 /* Bodega */
+#define PCI_DEVICE_ID_CISCO_BEVERLY 0x025f /* Beverly */
+
+/* Sereno */
+#define PCI_SUBDEVICE_ID_CISCO_VASONA 0x004f /* vasona mezz */
+#define PCI_SUBDEVICE_ID_CISCO_COTATI 0x0084 /* cotati mlom */
+#define PCI_SUBDEVICE_ID_CISCO_LEXINGTON 0x0085 /* lexington pcie */
+#define PCI_SUBDEVICE_ID_CISCO_ICEHOUSE 0x00cd /* Icehouse */
+#define PCI_SUBDEVICE_ID_CISCO_KIRKWOODLAKE 0x00ce /* KirkwoodLake pcie */
+#define PCI_SUBDEVICE_ID_CISCO_SUSANVILLE 0x012e /* Susanville MLOM */
+#define PCI_SUBDEVICE_ID_CISCO_TORRANCE 0x0139 /* Torrance MLOM */
+
+/* Cruz */
+#define PCI_SUBDEVICE_ID_CISCO_CALISTOGA 0x012c /* Calistoga MLOM */
+#define PCI_SUBDEVICE_ID_CISCO_MOUNTAINVIEW 0x0137 /* Cruz Mezz */
+/* Cruz MountTian SIOC */
+#define PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN 0x014b
+#define PCI_SUBDEVICE_ID_CISCO_CLEARLAKE 0x014d /* ClearLake pcie */
+/* Cruz MountTian2 SIOC */
+#define PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN2 0x0157
+#define PCI_SUBDEVICE_ID_CISCO_CLAREMONT 0x015d /* Claremont MLOM */
+
+/* Bodega */
+/* VIC 1457 PCIe mLOM */
+#define PCI_SUBDEVICE_ID_CISCO_BRADBURY 0x0218
+#define PCI_SUBDEVICE_ID_CISCO_BRENTWOOD 0x0217 /* VIC 1455 PCIe */
+/* VIC 1487 PCIe mLOM */
+#define PCI_SUBDEVICE_ID_CISCO_BURLINGAME 0x021a
+#define PCI_SUBDEVICE_ID_CISCO_BAYSIDE 0x0219 /* VIC 1485 PCIe */
+/* VIC 1440 Mezz mLOM */
+#define PCI_SUBDEVICE_ID_CISCO_BAKERSFIELD 0x0215
+#define PCI_SUBDEVICE_ID_CISCO_BOONVILLE 0x0216 /* VIC 1480 Mezz */
+#define PCI_SUBDEVICE_ID_CISCO_BENICIA 0x024a /* VIC 1495 */
+#define PCI_SUBDEVICE_ID_CISCO_BEAUMONT 0x024b /* VIC 1497 */
+#define PCI_SUBDEVICE_ID_CISCO_BRISBANE 0x02af /* VIC 1467 */
+#define PCI_SUBDEVICE_ID_CISCO_BENTON 0x02b0 /* VIC 1477 */
+#define PCI_SUBDEVICE_ID_CISCO_TWIN_RIVER 0x02cf /* VIC 14425 */
+#define PCI_SUBDEVICE_ID_CISCO_TWIN_PEAK 0x02d0 /* VIC 14825 */
+
+/* Beverly */
+#define PCI_SUBDEVICE_ID_CISCO_BERN 0x02de /* VIC 15420 */
+#define PCI_SUBDEVICE_ID_CISCO_STOCKHOLM 0x02dd /* VIC 15428 */
+#define PCI_SUBDEVICE_ID_CISCO_KRAKOW 0x02dc /* VIC 15411 */
+#define PCI_SUBDEVICE_ID_CISCO_LUCERNE 0x02db /* VIC 15231 */
+#define PCI_SUBDEVICE_ID_CISCO_TURKU 0x02e8 /* VIC 15238 */
+#define PCI_SUBDEVICE_ID_CISCO_TURKU_PLUS 0x02f3 /* VIC 15237 */
+#define PCI_SUBDEVICE_ID_CISCO_ZURICH 0x02df /* VIC 15230 */
+#define PCI_SUBDEVICE_ID_CISCO_RIGA 0x02e0 /* VIC 15427 */
+#define PCI_SUBDEVICE_ID_CISCO_GENEVA 0x02e1 /* VIC 15422 */
+#define PCI_SUBDEVICE_ID_CISCO_HELSINKI 0x02e4 /* VIC 15235 */
+#define PCI_SUBDEVICE_ID_CISCO_GOTHENBURG 0x02f2 /* VIC 15425 */
+
+struct fnic_pcie_device {
+ u32 device;
+ u8 *desc;
+ u32 subsystem_device;
+ u8 *subsys_desc;
+};
+
/*
* fnic private data per SCSI command.
* These fields are locked by the hashed io_req_lock.
@@ -127,8 +203,38 @@ static inline u64 fnic_flags_and_state(struct scsi_cmnd *cmd)
#define fnic_clear_state_flags(fnicp, st_flags) \
__fnic_set_state_flags(fnicp, st_flags, 1)
+enum reset_states {
+ NOT_IN_PROGRESS = 0,
+ IN_PROGRESS,
+ RESET_ERROR
+};
+
+enum rscn_type {
+ NOT_PC_RSCN = 0,
+ PC_RSCN
+};
+
+enum pc_rscn_handling_status {
+ PC_RSCN_HANDLING_NOT_IN_PROGRESS = 0,
+ PC_RSCN_HANDLING_IN_PROGRESS
+};
+
+enum pc_rscn_handling_feature {
+ PC_RSCN_HANDLING_FEATURE_OFF = 0,
+ PC_RSCN_HANDLING_FEATURE_ON
+};
+
+extern unsigned int fnic_fdmi_support;
extern unsigned int fnic_log_level;
extern unsigned int io_completions;
+extern struct workqueue_struct *fnic_event_queue;
+
+extern unsigned int pc_rscn_handling_feature_flag;
+extern spinlock_t reset_fnic_list_lock;
+extern struct list_head reset_fnic_list;
+extern struct workqueue_struct *reset_fnic_work_queue;
+extern struct work_struct reset_fnic_work;
+
#define FNIC_MAIN_LOGGING 0x01
#define FNIC_FCS_LOGGING 0x02
@@ -155,6 +261,12 @@ do { \
"fnic<%d>: %s: %d: " fmt, fnic_num,\
__func__, __LINE__, ##args);)
+#define FNIC_FIP_DBG(kern_level, host, fnic_num, fmt, args...) \
+ FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \
+ shost_printk(kern_level, host, \
+ "fnic<%d>: %s: %d: " fmt, fnic_num,\
+ __func__, __LINE__, ##args);)
+
#define FNIC_SCSI_DBG(kern_level, host, fnic_num, fmt, args...) \
FNIC_CHECK_LOGGING(FNIC_SCSI_LOGGING, \
shost_printk(kern_level, host, \
@@ -213,12 +325,26 @@ enum fnic_state {
struct mempool;
+enum fnic_role_e {
+ FNIC_ROLE_FCP_INITIATOR = 0,
+};
+
enum fnic_evt {
FNIC_EVT_START_VLAN_DISC = 1,
FNIC_EVT_START_FCF_DISC = 2,
FNIC_EVT_MAX,
};
+struct fnic_frame_list {
+ /*
+ * Link to frame lists
+ */
+ struct list_head links;
+ void *fp;
+ int frame_len;
+ int rx_ethhdr_stripped;
+};
+
struct fnic_event {
struct list_head list;
struct fnic *fnic;
@@ -235,8 +361,9 @@ struct fnic_cpy_wq {
/* Per-instance private data structure */
struct fnic {
int fnic_num;
- struct fc_lport *lport;
- struct fcoe_ctlr ctlr; /* FIP FCoE controller structure */
+ enum fnic_role_e role;
+ struct fnic_iport_s iport;
+ struct Scsi_Host *host;
struct vnic_dev_bar bar0;
struct fnic_msix_entry msix[FNIC_MSIX_INTR_MAX];
@@ -255,6 +382,7 @@ struct fnic {
unsigned int wq_count;
unsigned int cq_count;
+ struct completion reset_completion_wait;
struct mutex sgreset_mutex;
spinlock_t sgreset_lock; /* lock for sgreset */
struct scsi_cmnd *sgreset_sc;
@@ -268,25 +396,27 @@ struct fnic {
u32 vlan_hw_insert:1; /* let hw insert the tag */
u32 in_remove:1; /* fnic device in removal */
u32 stop_rx_link_events:1; /* stop proc. rx frames, link events */
- u32 link_events:1; /* set when we get any link event*/
-
- struct completion *remove_wait; /* device remove thread blocks */
+ struct completion *fw_reset_done;
+ u32 reset_in_progress;
atomic_t in_flight; /* io counter */
bool internal_reset_inprogress;
u32 _reserved; /* fill hole */
unsigned long state_flags; /* protected by host lock */
enum fnic_state state;
spinlock_t fnic_lock;
+ unsigned long lock_flags;
u16 vlan_id; /* VLAN tag including priority */
u8 data_src_addr[ETH_ALEN];
u64 fcp_input_bytes; /* internal statistic */
u64 fcp_output_bytes; /* internal statistic */
u32 link_down_cnt;
+ u32 soft_reset_count;
int link_status;
struct list_head list;
+ struct list_head links;
struct pci_dev *pdev;
struct vnic_fc_config config;
struct vnic_dev *vdev;
@@ -306,19 +436,29 @@ struct fnic {
struct work_struct link_work;
struct work_struct frame_work;
struct work_struct flush_work;
- struct sk_buff_head frame_queue;
- struct sk_buff_head tx_queue;
+ struct list_head frame_queue;
+ struct list_head tx_queue;
+ mempool_t *frame_pool;
+ mempool_t *frame_elem_pool;
+ struct work_struct tport_work;
+ struct list_head tport_event_list;
+
+ char subsys_desc[14];
+ int subsys_desc_len;
+ int pc_rscn_handling_status;
/*** FIP related data members -- start ***/
void (*set_vlan)(struct fnic *, u16 vlan);
struct work_struct fip_frame_work;
- struct sk_buff_head fip_frame_queue;
+ struct work_struct fip_timer_work;
+ struct list_head fip_frame_queue;
struct timer_list fip_timer;
- struct list_head vlans;
spinlock_t vlans_lock;
-
- struct work_struct event_work;
- struct list_head evlist;
+ struct timer_list retry_fip_timer;
+ struct timer_list fcs_ka_timer;
+ struct timer_list enode_ka_timer;
+ struct timer_list vn_ka_timer;
+ struct list_head vlan_list;
/*** FIP related data members -- end ***/
/* copy work queue cache line section */
@@ -341,11 +481,6 @@ struct fnic {
____cacheline_aligned struct vnic_intr intr[FNIC_MSIX_INTR_MAX];
};
-static inline struct fnic *fnic_from_ctlr(struct fcoe_ctlr *fip)
-{
- return container_of(fip, struct fnic, ctlr);
-}
-
extern struct workqueue_struct *fnic_event_queue;
extern struct workqueue_struct *fnic_fip_queue;
extern const struct attribute_group *fnic_host_groups[];
@@ -356,29 +491,29 @@ int fnic_set_intr_mode_msix(struct fnic *fnic);
void fnic_free_intr(struct fnic *fnic);
int fnic_request_intr(struct fnic *fnic);
-int fnic_send(struct fc_lport *, struct fc_frame *);
void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf);
void fnic_handle_frame(struct work_struct *work);
+void fnic_tport_event_handler(struct work_struct *work);
void fnic_handle_link(struct work_struct *work);
void fnic_handle_event(struct work_struct *work);
+void fdls_reclaim_oxid_handler(struct work_struct *work);
+void fdls_schedule_oxid_free(struct fnic_iport_s *iport, uint16_t *active_oxid);
+void fdls_schedule_oxid_free_retry_work(struct work_struct *work);
int fnic_rq_cmpl_handler(struct fnic *fnic, int);
int fnic_alloc_rq_frame(struct vnic_rq *rq);
void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf);
void fnic_flush_tx(struct work_struct *work);
-void fnic_eth_send(struct fcoe_ctlr *, struct sk_buff *skb);
-void fnic_set_port_id(struct fc_lport *, u32, struct fc_frame *);
-void fnic_update_mac(struct fc_lport *, u8 *new);
void fnic_update_mac_locked(struct fnic *, u8 *new);
int fnic_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
int fnic_abort_cmd(struct scsi_cmnd *);
int fnic_device_reset(struct scsi_cmnd *);
-int fnic_host_reset(struct scsi_cmnd *);
-int fnic_reset(struct Scsi_Host *);
-void fnic_scsi_cleanup(struct fc_lport *);
-void fnic_scsi_abort_io(struct fc_lport *);
-void fnic_empty_scsi_cleanup(struct fc_lport *);
-void fnic_exch_mgr_reset(struct fc_lport *, u32, u32);
+int fnic_eh_host_reset_handler(struct scsi_cmnd *sc);
+int fnic_host_reset(struct Scsi_Host *shost);
+void fnic_reset(struct Scsi_Host *shost);
+int fnic_issue_fc_host_lip(struct Scsi_Host *shost);
+void fnic_get_host_port_state(struct Scsi_Host *shost);
+void fnic_scsi_fcpio_reset(struct fnic *fnic);
int fnic_wq_copy_cmpl_handler(struct fnic *fnic, int copy_work_to_do, unsigned int cq_index);
int fnic_wq_cmpl_handler(struct fnic *fnic, int);
int fnic_flogi_reg_handler(struct fnic *fnic, u32);
@@ -390,14 +525,15 @@ const char *fnic_state_to_str(unsigned int state);
void fnic_mq_map_queues_cpus(struct Scsi_Host *host);
void fnic_log_q_error(struct fnic *fnic);
void fnic_handle_link_event(struct fnic *fnic);
-
+int fnic_stats_debugfs_init(struct fnic *fnic);
+void fnic_stats_debugfs_remove(struct fnic *fnic);
int fnic_is_abts_pending(struct fnic *, struct scsi_cmnd *);
void fnic_handle_fip_frame(struct work_struct *work);
+void fnic_reset_work_handler(struct work_struct *work);
void fnic_handle_fip_event(struct fnic *fnic);
void fnic_fcoe_reset_vlans(struct fnic *fnic);
-void fnic_fcoe_evlist_free(struct fnic *fnic);
-extern void fnic_handle_fip_timer(struct fnic *fnic);
+extern void fnic_handle_fip_timer(struct timer_list *t);
static inline int
fnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags)
@@ -406,4 +542,90 @@ fnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags)
}
void __fnic_set_state_flags(struct fnic *, unsigned long, unsigned long);
void fnic_dump_fchost_stats(struct Scsi_Host *, struct fc_host_statistics *);
+void fnic_free_txq(struct list_head *head);
+int fnic_get_desc_by_devid(struct pci_dev *pdev, char **desc,
+ char **subsys_desc);
+void fnic_fdls_link_status_change(struct fnic *fnic, int linkup);
+void fnic_delete_fcp_tports(struct fnic *fnic);
+void fnic_flush_tport_event_list(struct fnic *fnic);
+int fnic_count_ioreqs_wq(struct fnic *fnic, u32 hwq, u32 portid);
+unsigned int fnic_count_ioreqs(struct fnic *fnic, u32 portid);
+unsigned int fnic_count_all_ioreqs(struct fnic *fnic);
+unsigned int fnic_count_lun_ioreqs_wq(struct fnic *fnic, u32 hwq,
+ struct scsi_device *device);
+unsigned int fnic_count_lun_ioreqs(struct fnic *fnic,
+ struct scsi_device *device);
+void fnic_scsi_unload(struct fnic *fnic);
+void fnic_scsi_unload_cleanup(struct fnic *fnic);
+int fnic_get_debug_info(struct stats_debug_info *info,
+ struct fnic *fnic);
+
+struct fnic_scsi_iter_data {
+ struct fnic *fnic;
+ void *data1;
+ void *data2;
+ bool (*fn)(struct fnic *fnic, struct scsi_cmnd *sc,
+ void *data1, void *data2);
+};
+
+static inline bool
+fnic_io_iter_handler(struct scsi_cmnd *sc, void *iter_data)
+{
+ struct fnic_scsi_iter_data *iter = iter_data;
+
+ return iter->fn(iter->fnic, sc, iter->data1, iter->data2);
+}
+
+static inline void
+fnic_scsi_io_iter(struct fnic *fnic,
+ bool (*fn)(struct fnic *fnic, struct scsi_cmnd *sc,
+ void *data1, void *data2),
+ void *data1, void *data2)
+{
+ struct fnic_scsi_iter_data iter_data = {
+ .fn = fn,
+ .fnic = fnic,
+ .data1 = data1,
+ .data2 = data2,
+ };
+ scsi_host_busy_iter(fnic->host, fnic_io_iter_handler, &iter_data);
+}
+
+#ifdef FNIC_DEBUG
+static inline void
+fnic_debug_dump(struct fnic *fnic, uint8_t *u8arr, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i = i+8) {
+ FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "%d: %02x %02x %02x %02x %02x %02x %02x %02x", i / 8,
+ u8arr[i + 0], u8arr[i + 1], u8arr[i + 2], u8arr[i + 3],
+ u8arr[i + 4], u8arr[i + 5], u8arr[i + 6], u8arr[i + 7]);
+ }
+}
+
+static inline void
+fnic_debug_dump_fc_frame(struct fnic *fnic, struct fc_frame_header *fchdr,
+ int len, char *pfx)
+{
+ uint32_t s_id, d_id;
+
+ s_id = ntoh24(fchdr->fh_s_id);
+ d_id = ntoh24(fchdr->fh_d_id);
+ FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "%s packet contents: sid/did/type/oxid = 0x%x/0x%x/0x%x/0x%x (len = %d)\n",
+ pfx, s_id, d_id, fchdr->fh_type,
+ FNIC_STD_GET_OX_ID(fchdr), len);
+
+ fnic_debug_dump(fnic, (uint8_t *)fchdr, len);
+
+}
+#else /* FNIC_DEBUG */
+static inline void
+fnic_debug_dump(struct fnic *fnic, uint8_t *u8arr, int len) {}
+static inline void
+fnic_debug_dump_fc_frame(struct fnic *fnic, struct fc_frame_header *fchdr,
+ uint32_t len, char *pfx) {}
+#endif /* FNIC_DEBUG */
#endif /* _FNIC_H_ */
diff --git a/drivers/scsi/fnic/fnic_attrs.c b/drivers/scsi/fnic/fnic_attrs.c
index 0c5e57c7e322..705718f0809b 100644
--- a/drivers/scsi/fnic/fnic_attrs.c
+++ b/drivers/scsi/fnic/fnic_attrs.c
@@ -11,8 +11,8 @@
static ssize_t fnic_show_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct fc_lport *lp = shost_priv(class_to_shost(dev));
- struct fnic *fnic = lport_priv(lp);
+ struct fnic *fnic =
+ *((struct fnic **) shost_priv(class_to_shost(dev)));
return sysfs_emit(buf, "%s\n", fnic_state_str[fnic->state]);
}
@@ -26,9 +26,13 @@ static ssize_t fnic_show_drv_version(struct device *dev,
static ssize_t fnic_show_link_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct fc_lport *lp = shost_priv(class_to_shost(dev));
+ struct fnic *fnic =
+ *((struct fnic **) shost_priv(class_to_shost(dev)));
- return sysfs_emit(buf, "%s\n", (lp->link_up) ? "Link Up" : "Link Down");
+ return sysfs_emit(buf, "%s\n",
+ ((fnic->iport.state != FNIC_IPORT_STATE_INIT) &&
+ (fnic->iport.state != FNIC_IPORT_STATE_LINK_WAIT)) ?
+ "Link Up" : "Link Down");
}
static DEVICE_ATTR(fnic_state, S_IRUGO, fnic_show_state, NULL);
diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c
index 2619a2d4f5f1..5767862ae42f 100644
--- a/drivers/scsi/fnic/fnic_debugfs.c
+++ b/drivers/scsi/fnic/fnic_debugfs.c
@@ -7,6 +7,9 @@
#include <linux/vmalloc.h>
#include "fnic.h"
+extern int fnic_get_debug_info(struct stats_debug_info *debug_buffer,
+ struct fnic *fnic);
+
static struct dentry *fnic_trace_debugfs_root;
static struct dentry *fnic_trace_debugfs_file;
static struct dentry *fnic_trace_enable;
@@ -593,6 +596,7 @@ static int fnic_stats_debugfs_open(struct inode *inode,
debug->buf_size = buf_size;
memset((void *)debug->debug_buffer, 0, buf_size);
debug->buffer_len = fnic_get_stats_data(debug, fnic_stats);
+ debug->buffer_len += fnic_get_debug_info(debug, fnic);
file->private_data = debug;
@@ -673,26 +677,25 @@ static const struct file_operations fnic_reset_debugfs_fops = {
* It will create file stats and reset_stats under statistics/host# directory
* to log per fnic stats.
*/
-void fnic_stats_debugfs_init(struct fnic *fnic)
+int fnic_stats_debugfs_init(struct fnic *fnic)
{
char name[16];
- snprintf(name, sizeof(name), "host%d", fnic->lport->host->host_no);
+ snprintf(name, sizeof(name), "host%d", fnic->host->host_no);
fnic->fnic_stats_debugfs_host = debugfs_create_dir(name,
fnic_stats_debugfs_root);
-
fnic->fnic_stats_debugfs_file = debugfs_create_file("stats",
S_IFREG|S_IRUGO|S_IWUSR,
fnic->fnic_stats_debugfs_host,
fnic,
&fnic_stats_debugfs_fops);
-
fnic->fnic_reset_debugfs_file = debugfs_create_file("reset_stats",
S_IFREG|S_IRUGO|S_IWUSR,
fnic->fnic_stats_debugfs_host,
fnic,
&fnic_reset_debugfs_fops);
+ return 0;
}
/*
diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c
index a08293b2ad9f..1e8cd64f9a5c 100644
--- a/drivers/scsi/fnic/fnic_fcs.c
+++ b/drivers/scsi/fnic/fnic_fcs.c
@@ -14,701 +14,379 @@
#include <linux/workqueue.h>
#include <scsi/fc/fc_fip.h>
#include <scsi/fc/fc_els.h>
-#include <scsi/fc/fc_fcoe.h>
#include <scsi/fc_frame.h>
-#include <scsi/libfc.h>
+#include <linux/etherdevice.h>
+#include <scsi/scsi_transport_fc.h>
#include "fnic_io.h"
#include "fnic.h"
-#include "fnic_fip.h"
+#include "fnic_fdls.h"
+#include "fdls_fc.h"
#include "cq_enet_desc.h"
#include "cq_exch_desc.h"
+#include "fip.h"
+
+#define MAX_RESET_WAIT_COUNT 64
-static u8 fcoe_all_fcfs[ETH_ALEN] = FIP_ALL_FCF_MACS;
-struct workqueue_struct *fnic_fip_queue;
struct workqueue_struct *fnic_event_queue;
-static void fnic_set_eth_mode(struct fnic *);
-static void fnic_fcoe_send_vlan_req(struct fnic *fnic);
-static void fnic_fcoe_start_fcf_disc(struct fnic *fnic);
-static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *);
-static int fnic_fcoe_vlan_check(struct fnic *fnic, u16 flag);
-static int fnic_fcoe_handle_fip_frame(struct fnic *fnic, struct sk_buff *skb);
+static uint8_t FCOE_ALL_FCF_MAC[6] = FC_FCOE_FLOGI_MAC;
-void fnic_handle_link(struct work_struct *work)
+/*
+ * Internal Functions
+ * This function will initialize the src_mac address to be
+ * used in outgoing frames
+ */
+static inline void fnic_fdls_set_fcoe_srcmac(struct fnic *fnic,
+ uint8_t *src_mac)
{
- struct fnic *fnic = container_of(work, struct fnic, link_work);
- unsigned long flags;
- int old_link_status;
- u32 old_link_down_cnt;
- u64 old_port_speed, new_port_speed;
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
-
- fnic->link_events = 1; /* less work to just set everytime*/
-
- if (fnic->stop_rx_link_events) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
-
- old_link_down_cnt = fnic->link_down_cnt;
- old_link_status = fnic->link_status;
- old_port_speed = atomic64_read(
- &fnic->fnic_stats.misc_stats.current_port_speed);
-
- fnic->link_status = vnic_dev_link_status(fnic->vdev);
- fnic->link_down_cnt = vnic_dev_link_down_cnt(fnic->vdev);
-
- new_port_speed = vnic_dev_port_speed(fnic->vdev);
- atomic64_set(&fnic->fnic_stats.misc_stats.current_port_speed,
- new_port_speed);
- if (old_port_speed != new_port_speed)
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Current vnic speed set to: %llu\n",
- new_port_speed);
-
- switch (vnic_dev_port_speed(fnic->vdev)) {
- case DCEM_PORTSPEED_10G:
- fc_host_speed(fnic->lport->host) = FC_PORTSPEED_10GBIT;
- fnic->lport->link_supported_speeds = FC_PORTSPEED_10GBIT;
- break;
- case DCEM_PORTSPEED_20G:
- fc_host_speed(fnic->lport->host) = FC_PORTSPEED_20GBIT;
- fnic->lport->link_supported_speeds = FC_PORTSPEED_20GBIT;
- break;
- case DCEM_PORTSPEED_25G:
- fc_host_speed(fnic->lport->host) = FC_PORTSPEED_25GBIT;
- fnic->lport->link_supported_speeds = FC_PORTSPEED_25GBIT;
- break;
- case DCEM_PORTSPEED_40G:
- case DCEM_PORTSPEED_4x10G:
- fc_host_speed(fnic->lport->host) = FC_PORTSPEED_40GBIT;
- fnic->lport->link_supported_speeds = FC_PORTSPEED_40GBIT;
- break;
- case DCEM_PORTSPEED_100G:
- fc_host_speed(fnic->lport->host) = FC_PORTSPEED_100GBIT;
- fnic->lport->link_supported_speeds = FC_PORTSPEED_100GBIT;
- break;
- default:
- fc_host_speed(fnic->lport->host) = FC_PORTSPEED_UNKNOWN;
- fnic->lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
- break;
- }
-
- if (old_link_status == fnic->link_status) {
- if (!fnic->link_status) {
- /* DOWN -> DOWN */
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_LE, "Link Status: DOWN->DOWN",
- strlen("Link Status: DOWN->DOWN"));
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "down->down\n");
- } else {
- if (old_link_down_cnt != fnic->link_down_cnt) {
- /* UP -> DOWN -> UP */
- fnic->lport->host_stats.link_failure_count++;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- fnic_fc_trace_set_data(
- fnic->lport->host->host_no,
- FNIC_FC_LE,
- "Link Status:UP_DOWN_UP",
- strlen("Link_Status:UP_DOWN_UP")
- );
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "link down\n");
- fcoe_ctlr_link_down(&fnic->ctlr);
- if (fnic->config.flags & VFCF_FIP_CAPABLE) {
- /* start FCoE VLAN discovery */
- fnic_fc_trace_set_data(
- fnic->lport->host->host_no,
- FNIC_FC_LE,
- "Link Status: UP_DOWN_UP_VLAN",
- strlen(
- "Link Status: UP_DOWN_UP_VLAN")
- );
- fnic_fcoe_send_vlan_req(fnic);
- return;
- }
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "up->down->up: Link up\n");
- fcoe_ctlr_link_up(&fnic->ctlr);
- } else {
- /* UP -> UP */
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- fnic_fc_trace_set_data(
- fnic->lport->host->host_no, FNIC_FC_LE,
- "Link Status: UP_UP",
- strlen("Link Status: UP_UP"));
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "up->up\n");
- }
- }
- } else if (fnic->link_status) {
- /* DOWN -> UP */
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- if (fnic->config.flags & VFCF_FIP_CAPABLE) {
- /* start FCoE VLAN discovery */
- fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_LE, "Link Status: DOWN_UP_VLAN",
- strlen("Link Status: DOWN_UP_VLAN"));
- fnic_fcoe_send_vlan_req(fnic);
-
- return;
- }
-
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "down->up: Link up\n");
- fnic_fc_trace_set_data(fnic->lport->host->host_no, FNIC_FC_LE,
- "Link Status: DOWN_UP", strlen("Link Status: DOWN_UP"));
- fcoe_ctlr_link_up(&fnic->ctlr);
- } else {
- /* UP -> DOWN */
- fnic->lport->host_stats.link_failure_count++;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "up->down: Link down\n");
- fnic_fc_trace_set_data(
- fnic->lport->host->host_no, FNIC_FC_LE,
- "Link Status: UP_DOWN",
- strlen("Link Status: UP_DOWN"));
- if (fnic->config.flags & VFCF_FIP_CAPABLE) {
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "deleting fip-timer during link-down\n");
- del_timer_sync(&fnic->fip_timer);
- }
- fcoe_ctlr_link_down(&fnic->ctlr);
- }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Setting src mac: %02x:%02x:%02x:%02x:%02x:%02x",
+ src_mac[0], src_mac[1], src_mac[2], src_mac[3],
+ src_mac[4], src_mac[5]);
+ memcpy(fnic->iport.fpma, src_mac, 6);
}
/*
- * This function passes incoming fabric frames to libFC
+ * This function will initialize the dst_mac address to be
+ * used in outgoing frames
*/
-void fnic_handle_frame(struct work_struct *work)
+static inline void fnic_fdls_set_fcoe_dstmac(struct fnic *fnic,
+ uint8_t *dst_mac)
{
- struct fnic *fnic = container_of(work, struct fnic, frame_work);
- struct fc_lport *lp = fnic->lport;
- unsigned long flags;
- struct sk_buff *skb;
- struct fc_frame *fp;
-
- while ((skb = skb_dequeue(&fnic->frame_queue))) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Setting dst mac: %02x:%02x:%02x:%02x:%02x:%02x",
+ dst_mac[0], dst_mac[1], dst_mac[2], dst_mac[3],
+ dst_mac[4], dst_mac[5]);
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->stop_rx_link_events) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- dev_kfree_skb(skb);
- return;
- }
- fp = (struct fc_frame *)skb;
-
- /*
- * If we're in a transitional state, just re-queue and return.
- * The queue will be serviced when we get to a stable state.
- */
- if (fnic->state != FNIC_IN_FC_MODE &&
- fnic->state != FNIC_IN_ETH_MODE) {
- skb_queue_head(&fnic->frame_queue, skb);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-
- fc_exch_recv(lp, fp);
- }
+ memcpy(fnic->iport.fcfmac, dst_mac, 6);
}
-void fnic_fcoe_evlist_free(struct fnic *fnic)
+void fnic_get_host_port_state(struct Scsi_Host *shost)
{
- struct fnic_event *fevt = NULL;
- struct fnic_event *next = NULL;
+ struct fnic *fnic = *((struct fnic **) shost_priv(shost));
+ struct fnic_iport_s *iport = &fnic->iport;
unsigned long flags;
spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (list_empty(&fnic->evlist)) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
-
- list_for_each_entry_safe(fevt, next, &fnic->evlist, list) {
- list_del(&fevt->list);
- kfree(fevt);
- }
+ if (!fnic->link_status)
+ fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
+ else if (iport->state == FNIC_IPORT_STATE_READY)
+ fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
+ else
+ fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
}
-void fnic_handle_event(struct work_struct *work)
+void fnic_fdls_link_status_change(struct fnic *fnic, int linkup)
{
- struct fnic *fnic = container_of(work, struct fnic, event_work);
- struct fnic_event *fevt = NULL;
- struct fnic_event *next = NULL;
- unsigned long flags;
+ struct fnic_iport_s *iport = &fnic->iport;
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (list_empty(&fnic->evlist)) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "link up: %d, usefip: %d", linkup, iport->usefip);
- list_for_each_entry_safe(fevt, next, &fnic->evlist, list) {
- if (fnic->stop_rx_link_events) {
- list_del(&fevt->list);
- kfree(fevt);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
- /*
- * If we're in a transitional state, just re-queue and return.
- * The queue will be serviced when we get to a stable state.
- */
- if (fnic->state != FNIC_IN_FC_MODE &&
- fnic->state != FNIC_IN_ETH_MODE) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
- list_del(&fevt->list);
- switch (fevt->event) {
- case FNIC_EVT_START_VLAN_DISC:
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ if (linkup) {
+ if (iport->usefip) {
+ iport->state = FNIC_IPORT_STATE_FIP;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "link up: %d, usefip: %d", linkup, iport->usefip);
fnic_fcoe_send_vlan_req(fnic);
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- break;
- case FNIC_EVT_START_FCF_DISC:
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Start FCF Discovery\n");
- fnic_fcoe_start_fcf_disc(fnic);
- break;
- default:
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Unknown event 0x%x\n", fevt->event);
- break;
+ } else {
+ iport->state = FNIC_IPORT_STATE_FABRIC_DISC;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport->state: %d", iport->state);
+ fnic_fdls_disc_start(iport);
}
- kfree(fevt);
+ } else {
+ iport->state = FNIC_IPORT_STATE_LINK_WAIT;
+ if (!is_zero_ether_addr(iport->fpma))
+ vnic_dev_del_addr(fnic->vdev, iport->fpma);
+ fnic_common_fip_cleanup(fnic);
+ fnic_fdls_link_down(iport);
+
}
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
}
-/**
- * is_fnic_fip_flogi_reject() - Check if the Received FIP FLOGI frame is rejected
- * @fip: The FCoE controller that received the frame
- * @skb: The received FIP frame
- *
- * Returns non-zero if the frame is rejected with unsupported cmd with
- * insufficient resource els explanation.
+
+/*
+ * FPMA can be either taken from ethhdr(dst_mac) or flogi resp
+ * or derive from FC_MAP and FCID combination. While it should be
+ * same, revisit this if there is any possibility of not-correct.
*/
-static inline int is_fnic_fip_flogi_reject(struct fcoe_ctlr *fip,
- struct sk_buff *skb)
+void fnic_fdls_learn_fcoe_macs(struct fnic_iport_s *iport, void *rx_frame,
+ uint8_t *fcid)
{
- struct fc_lport *lport = fip->lp;
- struct fip_header *fiph;
- struct fc_frame_header *fh = NULL;
- struct fip_desc *desc;
- struct fip_encaps *els;
- u16 op;
- u8 els_op;
- u8 sub;
-
- size_t rlen;
- size_t dlen = 0;
-
- if (skb_linearize(skb))
- return 0;
+ struct fnic *fnic = iport->fnic;
+ struct ethhdr *ethhdr = (struct ethhdr *) rx_frame;
+ uint8_t fcmac[6] = { 0x0E, 0xFC, 0x00, 0x00, 0x00, 0x00 };
- if (skb->len < sizeof(*fiph))
- return 0;
+ memcpy(&fcmac[3], fcid, 3);
- fiph = (struct fip_header *)skb->data;
- op = ntohs(fiph->fip_op);
- sub = fiph->fip_subcode;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "learn fcoe: dst_mac: %02x:%02x:%02x:%02x:%02x:%02x",
+ ethhdr->h_dest[0], ethhdr->h_dest[1],
+ ethhdr->h_dest[2], ethhdr->h_dest[3],
+ ethhdr->h_dest[4], ethhdr->h_dest[5]);
- if (op != FIP_OP_LS)
- return 0;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "learn fcoe: fc_mac: %02x:%02x:%02x:%02x:%02x:%02x",
+ fcmac[0], fcmac[1], fcmac[2], fcmac[3], fcmac[4],
+ fcmac[5]);
- if (sub != FIP_SC_REP)
- return 0;
-
- rlen = ntohs(fiph->fip_dl_len) * 4;
- if (rlen + sizeof(*fiph) > skb->len)
- return 0;
-
- desc = (struct fip_desc *)(fiph + 1);
- dlen = desc->fip_dlen * FIP_BPW;
+ fnic_fdls_set_fcoe_srcmac(fnic, fcmac);
+ fnic_fdls_set_fcoe_dstmac(fnic, ethhdr->h_source);
+}
- if (desc->fip_dtype == FIP_DT_FLOGI) {
+void fnic_fdls_init(struct fnic *fnic, int usefip)
+{
+ struct fnic_iport_s *iport = &fnic->iport;
- if (dlen < sizeof(*els) + sizeof(*fh) + 1)
- return 0;
+ /* Initialize iPort structure */
+ iport->state = FNIC_IPORT_STATE_INIT;
+ iport->fnic = fnic;
+ iport->usefip = usefip;
- els = (struct fip_encaps *)desc;
- fh = (struct fc_frame_header *)(els + 1);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iportsrcmac: %02x:%02x:%02x:%02x:%02x:%02x",
+ iport->hwmac[0], iport->hwmac[1], iport->hwmac[2],
+ iport->hwmac[3], iport->hwmac[4], iport->hwmac[5]);
- if (!fh)
- return 0;
+ INIT_LIST_HEAD(&iport->tport_list);
+ INIT_LIST_HEAD(&iport->tport_list_pending_del);
- /*
- * ELS command code, reason and explanation should be = Reject,
- * unsupported command and insufficient resource
- */
- els_op = *(u8 *)(fh + 1);
- if (els_op == ELS_LS_RJT) {
- shost_printk(KERN_INFO, lport->host,
- "Flogi Request Rejected by Switch\n");
- return 1;
- }
- shost_printk(KERN_INFO, lport->host,
- "Flogi Request Accepted by Switch\n");
- }
- return 0;
+ fnic_fdls_disc_init(iport);
}
-static void fnic_fcoe_send_vlan_req(struct fnic *fnic)
+void fnic_handle_link(struct work_struct *work)
{
- struct fcoe_ctlr *fip = &fnic->ctlr;
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- struct sk_buff *skb;
- char *eth_fr;
- struct fip_vlan *vlan;
- u64 vlan_tov;
+ struct fnic *fnic = container_of(work, struct fnic, link_work);
+ int old_link_status;
+ u32 old_link_down_cnt;
+ int max_count = 0;
- fnic_fcoe_reset_vlans(fnic);
- fnic->set_vlan(fnic, 0);
+ if (vnic_dev_get_intr_mode(fnic->vdev) != VNIC_DEV_INTR_MODE_MSI)
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Interrupt mode is not MSI\n");
- if (printk_ratelimit())
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Sending VLAN request...\n");
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
- skb = dev_alloc_skb(sizeof(struct fip_vlan));
- if (!skb)
+ if (fnic->stop_rx_link_events) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Stop link rx events\n");
return;
-
- eth_fr = (char *)skb->data;
- vlan = (struct fip_vlan *)eth_fr;
-
- memset(vlan, 0, sizeof(*vlan));
- memcpy(vlan->eth.h_source, fip->ctl_src_addr, ETH_ALEN);
- memcpy(vlan->eth.h_dest, fcoe_all_fcfs, ETH_ALEN);
- vlan->eth.h_proto = htons(ETH_P_FIP);
-
- vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
- vlan->fip.fip_op = htons(FIP_OP_VLAN);
- vlan->fip.fip_subcode = FIP_SC_VL_REQ;
- vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
-
- vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
- vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
- memcpy(&vlan->desc.mac.fd_mac, fip->ctl_src_addr, ETH_ALEN);
-
- vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
- vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
- put_unaligned_be64(fip->lp->wwnn, &vlan->desc.wwnn.fd_wwn);
- atomic64_inc(&fnic_stats->vlan_stats.vlan_disc_reqs);
-
- skb_put(skb, sizeof(*vlan));
- skb->protocol = htons(ETH_P_FIP);
- skb_reset_mac_header(skb);
- skb_reset_network_header(skb);
- fip->send(fip, skb);
-
- /* set a timer so that we can retry if there no response */
- vlan_tov = jiffies + msecs_to_jiffies(FCOE_CTLR_FIPVLAN_TOV);
- mod_timer(&fnic->fip_timer, round_jiffies(vlan_tov));
-}
-
-static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *skb)
-{
- struct fcoe_ctlr *fip = &fnic->ctlr;
- struct fip_header *fiph;
- struct fip_desc *desc;
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- u16 vid;
- size_t rlen;
- size_t dlen;
- struct fcoe_vlan *vlan;
- u64 sol_time;
- unsigned long flags;
-
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Received VLAN response...\n");
-
- fiph = (struct fip_header *) skb->data;
-
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Received VLAN response... OP 0x%x SUB_OP 0x%x\n",
- ntohs(fiph->fip_op), fiph->fip_subcode);
-
- rlen = ntohs(fiph->fip_dl_len) * 4;
- fnic_fcoe_reset_vlans(fnic);
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- desc = (struct fip_desc *)(fiph + 1);
- while (rlen > 0) {
- dlen = desc->fip_dlen * FIP_BPW;
- switch (desc->fip_dtype) {
- case FIP_DT_VLAN:
- vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
- shost_printk(KERN_INFO, fnic->lport->host,
- "process_vlan_resp: FIP VLAN %d\n", vid);
- vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
- if (!vlan) {
- /* retry from timer */
- spin_unlock_irqrestore(&fnic->vlans_lock,
- flags);
- goto out;
- }
- vlan->vid = vid & 0x0fff;
- vlan->state = FIP_VLAN_AVAIL;
- list_add_tail(&vlan->list, &fnic->vlans);
- break;
- }
- desc = (struct fip_desc *)((char *)desc + dlen);
- rlen -= dlen;
}
- /* any VLAN descriptors present ? */
- if (list_empty(&fnic->vlans)) {
- /* retry from timer */
- atomic64_inc(&fnic_stats->vlan_stats.resp_withno_vlanID);
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "No VLAN descriptors in FIP VLAN response\n");
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- goto out;
+ /* Do not process if the fnic is already in transitional state */
+ if ((fnic->state != FNIC_IN_ETH_MODE)
+ && (fnic->state != FNIC_IN_FC_MODE)) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic in transitional state: %d. link up: %d ignored",
+ fnic->state, vnic_dev_link_status(fnic->vdev));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Current link status: %d iport state: %d\n",
+ fnic->link_status, fnic->iport.state);
+ return;
}
- vlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- fnic->set_vlan(fnic, vlan->vid);
- vlan->state = FIP_VLAN_SENT; /* sent now */
- vlan->sol_count++;
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
-
- /* start the solicitation */
- fcoe_ctlr_link_up(fip);
-
- sol_time = jiffies + msecs_to_jiffies(FCOE_CTLR_START_DELAY);
- mod_timer(&fnic->fip_timer, round_jiffies(sol_time));
-out:
- return;
-}
-
-static void fnic_fcoe_start_fcf_disc(struct fnic *fnic)
-{
- unsigned long flags;
- struct fcoe_vlan *vlan;
- u64 sol_time;
-
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- vlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- fnic->set_vlan(fnic, vlan->vid);
- vlan->state = FIP_VLAN_SENT; /* sent now */
- vlan->sol_count = 1;
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
-
- /* start the solicitation */
- fcoe_ctlr_link_up(&fnic->ctlr);
-
- sol_time = jiffies + msecs_to_jiffies(FCOE_CTLR_START_DELAY);
- mod_timer(&fnic->fip_timer, round_jiffies(sol_time));
-}
-
-static int fnic_fcoe_vlan_check(struct fnic *fnic, u16 flag)
-{
- unsigned long flags;
- struct fcoe_vlan *fvlan;
+ old_link_down_cnt = fnic->link_down_cnt;
+ old_link_status = fnic->link_status;
+ fnic->link_status = vnic_dev_link_status(fnic->vdev);
+ fnic->link_down_cnt = vnic_dev_link_down_cnt(fnic->vdev);
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- if (list_empty(&fnic->vlans)) {
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return -EINVAL;
+ while (fnic->reset_in_progress == IN_PROGRESS) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic reset in progress. Link event needs to wait\n");
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "waiting for reset completion\n");
+ wait_for_completion_timeout(&fnic->reset_completion_wait,
+ msecs_to_jiffies(5000));
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "woken up from reset completion wait\n");
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+
+ max_count++;
+ if (max_count >= MAX_RESET_WAIT_COUNT) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Rstth waited for too long. Skipping handle link event\n");
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ return;
+ }
}
-
- fvlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- if (fvlan->state == FIP_VLAN_USED) {
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return 0;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Marking fnic reset in progress\n");
+ fnic->reset_in_progress = IN_PROGRESS;
+
+ if ((vnic_dev_get_intr_mode(fnic->vdev) != VNIC_DEV_INTR_MODE_MSI) ||
+ (fnic->link_status != old_link_status)) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "old link status: %d link status: %d\n",
+ old_link_status, (int) fnic->link_status);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "old down count %d down count: %d\n",
+ old_link_down_cnt, (int) fnic->link_down_cnt);
}
- if (fvlan->state == FIP_VLAN_SENT) {
- fvlan->state = FIP_VLAN_USED;
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return 0;
+ if (old_link_status == fnic->link_status) {
+ if (!fnic->link_status) {
+ /* DOWN -> DOWN */
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "down->down\n");
+ } else {
+ if (old_link_down_cnt != fnic->link_down_cnt) {
+ /* UP -> DOWN -> UP */
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "up->down. Link down\n");
+ fnic_fdls_link_status_change(fnic, 0);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "down->up. Link up\n");
+ fnic_fdls_link_status_change(fnic, 1);
+ } else {
+ /* UP -> UP */
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "up->up\n");
+ }
+ }
+ } else if (fnic->link_status) {
+ /* DOWN -> UP */
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "down->up. Link up\n");
+ fnic_fdls_link_status_change(fnic, 1);
+ } else {
+ /* UP -> DOWN */
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "up->down. Link down\n");
+ fnic_fdls_link_status_change(fnic, 0);
}
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return -EINVAL;
-}
-static void fnic_event_enq(struct fnic *fnic, enum fnic_evt ev)
-{
- struct fnic_event *fevt;
- unsigned long flags;
-
- fevt = kmalloc(sizeof(*fevt), GFP_ATOMIC);
- if (!fevt)
- return;
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ fnic->reset_in_progress = NOT_IN_PROGRESS;
+ complete(&fnic->reset_completion_wait);
- fevt->fnic = fnic;
- fevt->event = ev;
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- list_add_tail(&fevt->list, &fnic->evlist);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-
- schedule_work(&fnic->event_work);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Marking fnic reset completion\n");
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
}
-static int fnic_fcoe_handle_fip_frame(struct fnic *fnic, struct sk_buff *skb)
+void fnic_handle_frame(struct work_struct *work)
{
- struct fip_header *fiph;
- int ret = 1;
- u16 op;
- u8 sub;
+ struct fnic *fnic = container_of(work, struct fnic, frame_work);
+ struct fnic_frame_list *cur_frame, *next;
+ int fchdr_offset = 0;
- if (!skb || !(skb->data))
- return -1;
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ list_for_each_entry_safe(cur_frame, next, &fnic->frame_queue, links) {
+ if (fnic->stop_rx_link_events) {
+ list_del(&cur_frame->links);
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ kfree(cur_frame->fp);
+ mempool_free(cur_frame, fnic->frame_elem_pool);
+ return;
+ }
- if (skb_linearize(skb))
- goto drop;
+ /*
+ * If we're in a transitional state, just re-queue and return.
+ * The queue will be serviced when we get to a stable state.
+ */
+ if (fnic->state != FNIC_IN_FC_MODE &&
+ fnic->state != FNIC_IN_ETH_MODE) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Cannot process frame in transitional state\n");
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ return;
+ }
- fiph = (struct fip_header *)skb->data;
- op = ntohs(fiph->fip_op);
- sub = fiph->fip_subcode;
+ list_del(&cur_frame->links);
- if (FIP_VER_DECAPS(fiph->fip_ver) != FIP_VER)
- goto drop;
+ /* Frames from FCP_RQ will have ethhdrs stripped off */
+ fchdr_offset = (cur_frame->rx_ethhdr_stripped) ?
+ 0 : FNIC_ETH_FCOE_HDRS_OFFSET;
- if (ntohs(fiph->fip_dl_len) * FIP_BPW + sizeof(*fiph) > skb->len)
- goto drop;
+ fnic_fdls_recv_frame(&fnic->iport, cur_frame->fp,
+ cur_frame->frame_len, fchdr_offset);
- if (op == FIP_OP_DISC && sub == FIP_SC_ADV) {
- if (fnic_fcoe_vlan_check(fnic, ntohs(fiph->fip_flags)))
- goto drop;
- /* pass it on to fcoe */
- ret = 1;
- } else if (op == FIP_OP_VLAN && sub == FIP_SC_VL_NOTE) {
- /* set the vlan as used */
- fnic_fcoe_process_vlan_resp(fnic, skb);
- ret = 0;
- } else if (op == FIP_OP_CTRL && sub == FIP_SC_CLR_VLINK) {
- /* received CVL request, restart vlan disc */
- fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
- /* pass it on to fcoe */
- ret = 1;
+ kfree(cur_frame->fp);
+ mempool_free(cur_frame, fnic->frame_elem_pool);
}
-drop:
- return ret;
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
}
void fnic_handle_fip_frame(struct work_struct *work)
{
+ struct fnic_frame_list *cur_frame, *next;
struct fnic *fnic = container_of(work, struct fnic, fip_frame_work);
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- unsigned long flags;
- struct sk_buff *skb;
- struct ethhdr *eh;
- while ((skb = skb_dequeue(&fnic->fip_frame_queue))) {
- spin_lock_irqsave(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Processing FIP frame\n");
+
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ list_for_each_entry_safe(cur_frame, next, &fnic->fip_frame_queue,
+ links) {
if (fnic->stop_rx_link_events) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- dev_kfree_skb(skb);
+ list_del(&cur_frame->links);
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ kfree(cur_frame->fp);
+ kfree(cur_frame);
return;
}
+
/*
* If we're in a transitional state, just re-queue and return.
* The queue will be serviced when we get to a stable state.
*/
if (fnic->state != FNIC_IN_FC_MODE &&
- fnic->state != FNIC_IN_ETH_MODE) {
- skb_queue_head(&fnic->fip_frame_queue, skb);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ fnic->state != FNIC_IN_ETH_MODE) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
return;
}
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- eh = (struct ethhdr *)skb->data;
- if (eh->h_proto == htons(ETH_P_FIP)) {
- skb_pull(skb, sizeof(*eh));
- if (fnic_fcoe_handle_fip_frame(fnic, skb) <= 0) {
- dev_kfree_skb(skb);
- continue;
- }
- /*
- * If there's FLOGI rejects - clear all
- * fcf's & restart from scratch
- */
- if (is_fnic_fip_flogi_reject(&fnic->ctlr, skb)) {
- atomic64_inc(
- &fnic_stats->vlan_stats.flogi_rejects);
- shost_printk(KERN_INFO, fnic->lport->host,
- "Trigger a Link down - VLAN Disc\n");
- fcoe_ctlr_link_down(&fnic->ctlr);
- /* start FCoE VLAN discovery */
- fnic_fcoe_send_vlan_req(fnic);
- dev_kfree_skb(skb);
- continue;
- }
- fcoe_ctlr_recv(&fnic->ctlr, skb);
- continue;
+
+ list_del(&cur_frame->links);
+
+ if (fdls_fip_recv_frame(fnic, cur_frame->fp)) {
+ kfree(cur_frame->fp);
+ kfree(cur_frame);
}
}
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
}
/**
* fnic_import_rq_eth_pkt() - handle received FCoE or FIP frame.
* @fnic: fnic instance.
- * @skb: Ethernet Frame.
+ * @fp: Ethernet Frame.
*/
-static inline int fnic_import_rq_eth_pkt(struct fnic *fnic, struct sk_buff *skb)
+static inline int fnic_import_rq_eth_pkt(struct fnic *fnic, void *fp)
{
- struct fc_frame *fp;
struct ethhdr *eh;
- struct fcoe_hdr *fcoe_hdr;
- struct fcoe_crc_eof *ft;
+ struct fnic_frame_list *fip_fr_elem;
+ unsigned long flags;
- /*
- * Undo VLAN encapsulation if present.
- */
- eh = (struct ethhdr *)skb->data;
- if (eh->h_proto == htons(ETH_P_8021Q)) {
- memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
- eh = skb_pull(skb, VLAN_HLEN);
- skb_reset_mac_header(skb);
- }
- if (eh->h_proto == htons(ETH_P_FIP)) {
- if (!(fnic->config.flags & VFCF_FIP_CAPABLE)) {
- printk(KERN_ERR "Dropped FIP frame, as firmware "
- "uses non-FIP mode, Enable FIP "
- "using UCSM\n");
- goto drop;
- }
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_RECV|0x80, (char *)skb->data, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
- }
- skb_queue_tail(&fnic->fip_frame_queue, skb);
+ eh = (struct ethhdr *) fp;
+ if ((eh->h_proto == cpu_to_be16(ETH_P_FIP)) && (fnic->iport.usefip)) {
+ fip_fr_elem = (struct fnic_frame_list *)
+ kzalloc(sizeof(struct fnic_frame_list), GFP_ATOMIC);
+ if (!fip_fr_elem)
+ return 0;
+ fip_fr_elem->fp = fp;
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_add_tail(&fip_fr_elem->links, &fnic->fip_frame_queue);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
queue_work(fnic_fip_queue, &fnic->fip_frame_work);
- return 1; /* let caller know packet was used */
- }
- if (eh->h_proto != htons(ETH_P_FCOE))
- goto drop;
- skb_set_network_header(skb, sizeof(*eh));
- skb_pull(skb, sizeof(*eh));
-
- fcoe_hdr = (struct fcoe_hdr *)skb->data;
- if (FC_FCOE_DECAPS_VER(fcoe_hdr) != FC_FCOE_VER)
- goto drop;
-
- fp = (struct fc_frame *)skb;
- fc_frame_init(fp);
- fr_sof(fp) = fcoe_hdr->fcoe_sof;
- skb_pull(skb, sizeof(struct fcoe_hdr));
- skb_reset_transport_header(skb);
-
- ft = (struct fcoe_crc_eof *)(skb->data + skb->len - sizeof(*ft));
- fr_eof(fp) = ft->fcoe_eof;
- skb_trim(skb, skb->len - sizeof(*ft));
- return 0;
-drop:
- dev_kfree_skb_irq(skb);
- return -1;
+ return 1; /* let caller know packet was used */
+ } else
+ return 0;
}
/**
@@ -720,206 +398,147 @@ drop:
*/
void fnic_update_mac_locked(struct fnic *fnic, u8 *new)
{
- u8 *ctl = fnic->ctlr.ctl_src_addr;
+ struct fnic_iport_s *iport = &fnic->iport;
+ u8 *ctl = iport->hwmac;
u8 *data = fnic->data_src_addr;
if (is_zero_ether_addr(new))
new = ctl;
if (ether_addr_equal(data, new))
return;
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "update_mac %pM\n", new);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Update MAC: %u\n", *new);
+
if (!is_zero_ether_addr(data) && !ether_addr_equal(data, ctl))
vnic_dev_del_addr(fnic->vdev, data);
+
memcpy(data, new, ETH_ALEN);
if (!ether_addr_equal(new, ctl))
vnic_dev_add_addr(fnic->vdev, new);
}
-/**
- * fnic_update_mac() - set data MAC address and filters.
- * @lport: local port.
- * @new: newly-assigned FCoE MAC address.
- */
-void fnic_update_mac(struct fc_lport *lport, u8 *new)
-{
- struct fnic *fnic = lport_priv(lport);
-
- spin_lock_irq(&fnic->fnic_lock);
- fnic_update_mac_locked(fnic, new);
- spin_unlock_irq(&fnic->fnic_lock);
-}
-
-/**
- * fnic_set_port_id() - set the port_ID after successful FLOGI.
- * @lport: local port.
- * @port_id: assigned FC_ID.
- * @fp: received frame containing the FLOGI accept or NULL.
- *
- * This is called from libfc when a new FC_ID has been assigned.
- * This causes us to reset the firmware to FC_MODE and setup the new MAC
- * address and FC_ID.
- *
- * It is also called with FC_ID 0 when we're logged off.
- *
- * If the FC_ID is due to point-to-point, fp may be NULL.
- */
-void fnic_set_port_id(struct fc_lport *lport, u32 port_id, struct fc_frame *fp)
-{
- struct fnic *fnic = lport_priv(lport);
- u8 *mac;
- int ret;
-
- FNIC_FCS_DBG(KERN_DEBUG, lport->host, fnic->fnic_num,
- "set port_id 0x%x fp 0x%p\n",
- port_id, fp);
-
- /*
- * If we're clearing the FC_ID, change to use the ctl_src_addr.
- * Set ethernet mode to send FLOGI.
- */
- if (!port_id) {
- fnic_update_mac(lport, fnic->ctlr.ctl_src_addr);
- fnic_set_eth_mode(fnic);
- return;
- }
-
- if (fp) {
- mac = fr_cb(fp)->granted_mac;
- if (is_zero_ether_addr(mac)) {
- /* non-FIP - FLOGI already accepted - ignore return */
- fcoe_ctlr_recv_flogi(&fnic->ctlr, lport, fp);
- }
- fnic_update_mac(lport, mac);
- }
-
- /* Change state to reflect transition to FC mode */
- spin_lock_irq(&fnic->fnic_lock);
- if (fnic->state == FNIC_IN_ETH_MODE || fnic->state == FNIC_IN_FC_MODE)
- fnic->state = FNIC_IN_ETH_TRANS_FC_MODE;
- else {
- FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
- "Unexpected fnic state: %s processing FLOGI response",
- fnic_state_to_str(fnic->state));
- spin_unlock_irq(&fnic->fnic_lock);
- return;
- }
- spin_unlock_irq(&fnic->fnic_lock);
-
- /*
- * Send FLOGI registration to firmware to set up FC mode.
- * The new address will be set up when registration completes.
- */
- ret = fnic_flogi_reg_handler(fnic, port_id);
-
- if (ret < 0) {
- spin_lock_irq(&fnic->fnic_lock);
- if (fnic->state == FNIC_IN_ETH_TRANS_FC_MODE)
- fnic->state = FNIC_IN_ETH_MODE;
- spin_unlock_irq(&fnic->fnic_lock);
- }
-}
-
static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc
*cq_desc, struct vnic_rq_buf *buf,
int skipped __attribute__((unused)),
void *opaque)
{
struct fnic *fnic = vnic_dev_priv(rq->vdev);
- struct sk_buff *skb;
- struct fc_frame *fp;
+ uint8_t *fp;
struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+ unsigned int ethhdr_stripped;
u8 type, color, eop, sop, ingress_port, vlan_stripped;
- u8 fcoe = 0, fcoe_sof, fcoe_eof;
- u8 fcoe_fc_crc_ok = 1, fcoe_enc_error = 0;
- u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
- u8 ipv6, ipv4, ipv4_fragment, rss_type, csum_not_calc;
+ u8 fcoe_fnic_crc_ok = 1, fcoe_enc_error = 0;
u8 fcs_ok = 1, packet_error = 0;
- u16 q_number, completed_index, bytes_written = 0, vlan, checksum;
+ u16 q_number, completed_index, vlan;
u32 rss_hash;
+ u16 checksum;
+ u8 csum_not_calc, rss_type, ipv4, ipv6, ipv4_fragment;
+ u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
+ u8 fcoe = 0, fcoe_sof, fcoe_eof;
u16 exchange_id, tmpl;
u8 sof = 0;
u8 eof = 0;
u32 fcp_bytes_written = 0;
+ u16 enet_bytes_written = 0;
+ u32 bytes_written = 0;
unsigned long flags;
+ struct fnic_frame_list *frame_elem = NULL;
+ struct ethhdr *eh;
dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,
- DMA_FROM_DEVICE);
- skb = buf->os_buf;
- fp = (struct fc_frame *)skb;
+ DMA_FROM_DEVICE);
+ fp = (uint8_t *) buf->os_buf;
buf->os_buf = NULL;
cq_desc_dec(cq_desc, &type, &color, &q_number, &completed_index);
if (type == CQ_DESC_TYPE_RQ_FCP) {
- cq_fcp_rq_desc_dec((struct cq_fcp_rq_desc *)cq_desc,
- &type, &color, &q_number, &completed_index,
- &eop, &sop, &fcoe_fc_crc_ok, &exchange_id,
- &tmpl, &fcp_bytes_written, &sof, &eof,
- &ingress_port, &packet_error,
- &fcoe_enc_error, &fcs_ok, &vlan_stripped,
- &vlan);
- skb_trim(skb, fcp_bytes_written);
- fr_sof(fp) = sof;
- fr_eof(fp) = eof;
-
+ cq_fcp_rq_desc_dec((struct cq_fcp_rq_desc *) cq_desc, &type,
+ &color, &q_number, &completed_index, &eop, &sop,
+ &fcoe_fnic_crc_ok, &exchange_id, &tmpl,
+ &fcp_bytes_written, &sof, &eof, &ingress_port,
+ &packet_error, &fcoe_enc_error, &fcs_ok,
+ &vlan_stripped, &vlan);
+ ethhdr_stripped = 1;
+ bytes_written = fcp_bytes_written;
} else if (type == CQ_DESC_TYPE_RQ_ENET) {
- cq_enet_rq_desc_dec((struct cq_enet_rq_desc *)cq_desc,
- &type, &color, &q_number, &completed_index,
- &ingress_port, &fcoe, &eop, &sop,
- &rss_type, &csum_not_calc, &rss_hash,
- &bytes_written, &packet_error,
- &vlan_stripped, &vlan, &checksum,
- &fcoe_sof, &fcoe_fc_crc_ok,
- &fcoe_enc_error, &fcoe_eof,
- &tcp_udp_csum_ok, &udp, &tcp,
- &ipv4_csum_ok, &ipv6, &ipv4,
- &ipv4_fragment, &fcs_ok);
- skb_trim(skb, bytes_written);
+ cq_enet_rq_desc_dec((struct cq_enet_rq_desc *) cq_desc, &type,
+ &color, &q_number, &completed_index,
+ &ingress_port, &fcoe, &eop, &sop, &rss_type,
+ &csum_not_calc, &rss_hash, &enet_bytes_written,
+ &packet_error, &vlan_stripped, &vlan,
+ &checksum, &fcoe_sof, &fcoe_fnic_crc_ok,
+ &fcoe_enc_error, &fcoe_eof, &tcp_udp_csum_ok,
+ &udp, &tcp, &ipv4_csum_ok, &ipv6, &ipv4,
+ &ipv4_fragment, &fcs_ok);
+
+ ethhdr_stripped = 0;
+ bytes_written = enet_bytes_written;
+
if (!fcs_ok) {
atomic64_inc(&fnic_stats->misc_stats.frame_errors);
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fcs error. dropping packet.\n");
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic 0x%p fcs error. Dropping packet.\n", fnic);
goto drop;
}
- if (fnic_import_rq_eth_pkt(fnic, skb))
- return;
+ eh = (struct ethhdr *) fp;
+ if (eh->h_proto != cpu_to_be16(ETH_P_FCOE)) {
+ if (fnic_import_rq_eth_pkt(fnic, fp))
+ return;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Dropping h_proto 0x%x",
+ be16_to_cpu(eh->h_proto));
+ goto drop;
+ }
} else {
- /* wrong CQ type*/
- shost_printk(KERN_ERR, fnic->lport->host,
- "fnic rq_cmpl wrong cq type x%x\n", type);
+ /* wrong CQ type */
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic rq_cmpl wrong cq type x%x\n", type);
goto drop;
}
- if (!fcs_ok || packet_error || !fcoe_fc_crc_ok || fcoe_enc_error) {
+ if (!fcs_ok || packet_error || !fcoe_fnic_crc_ok || fcoe_enc_error) {
atomic64_inc(&fnic_stats->misc_stats.frame_errors);
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fnic rq_cmpl fcoe x%x fcsok x%x"
- " pkterr x%x fcoe_fc_crc_ok x%x, fcoe_enc_err"
- " x%x\n",
- fcoe, fcs_ok, packet_error,
- fcoe_fc_crc_ok, fcoe_enc_error);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fcoe %x fcsok %x pkterr %x ffco %x fee %x\n",
+ fcoe, fcs_ok, packet_error,
+ fcoe_fnic_crc_ok, fcoe_enc_error);
goto drop;
}
spin_lock_irqsave(&fnic->fnic_lock, flags);
if (fnic->stop_rx_link_events) {
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic->stop_rx_link_events: %d\n",
+ fnic->stop_rx_link_events);
goto drop;
}
- fr_dev(fp) = fnic->lport;
+
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no, FNIC_FC_RECV,
- (char *)skb->data, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
+
+ frame_elem = mempool_alloc(fnic->frame_elem_pool,
+ GFP_ATOMIC | __GFP_ZERO);
+ if (!frame_elem) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Failed to allocate memory for frame elem");
+ goto drop;
}
+ frame_elem->fp = fp;
+ frame_elem->rx_ethhdr_stripped = ethhdr_stripped;
+ frame_elem->frame_len = bytes_written;
- skb_queue_tail(&fnic->frame_queue, skb);
- queue_work(fnic_event_queue, &fnic->frame_work);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_add_tail(&frame_elem->links, &fnic->frame_queue);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ queue_work(fnic_event_queue, &fnic->frame_work);
return;
+
drop:
- dev_kfree_skb_irq(skb);
+ kfree(fp);
}
static int fnic_rq_cmpl_handler_cont(struct vnic_dev *vdev,
@@ -945,10 +564,10 @@ int fnic_rq_cmpl_handler(struct fnic *fnic, int rq_work_to_do)
cur_work_done = vnic_cq_service(&fnic->cq[i], rq_work_to_do,
fnic_rq_cmpl_handler_cont,
NULL);
- if (cur_work_done) {
+ if (cur_work_done && fnic->stop_rx_link_events != 1) {
err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame);
if (err)
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"fnic_alloc_rq_frame can't alloc"
" frame\n");
}
@@ -966,218 +585,179 @@ int fnic_rq_cmpl_handler(struct fnic *fnic, int rq_work_to_do)
int fnic_alloc_rq_frame(struct vnic_rq *rq)
{
struct fnic *fnic = vnic_dev_priv(rq->vdev);
- struct sk_buff *skb;
+ void *buf;
u16 len;
dma_addr_t pa;
- int r;
+ int ret;
- len = FC_FRAME_HEADROOM + FC_MAX_FRAME + FC_FRAME_TAILROOM;
- skb = dev_alloc_skb(len);
- if (!skb) {
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Unable to allocate RQ sk_buff\n");
+ len = FNIC_FRAME_HT_ROOM;
+ buf = kmalloc(len, GFP_ATOMIC);
+ if (!buf) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Unable to allocate RQ buffer of size: %d\n", len);
return -ENOMEM;
}
- skb_reset_mac_header(skb);
- skb_reset_transport_header(skb);
- skb_reset_network_header(skb);
- skb_put(skb, len);
- pa = dma_map_single(&fnic->pdev->dev, skb->data, len, DMA_FROM_DEVICE);
+
+ pa = dma_map_single(&fnic->pdev->dev, buf, len, DMA_FROM_DEVICE);
if (dma_mapping_error(&fnic->pdev->dev, pa)) {
- r = -ENOMEM;
- printk(KERN_ERR "PCI mapping failed with error %d\n", r);
- goto free_skb;
+ ret = -ENOMEM;
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "PCI mapping failed with error %d\n", ret);
+ goto free_buf;
}
- fnic_queue_rq_desc(rq, skb, pa, len);
+ fnic_queue_rq_desc(rq, buf, pa, len);
return 0;
-
-free_skb:
- kfree_skb(skb);
- return r;
+free_buf:
+ kfree(buf);
+ return ret;
}
void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf)
{
- struct fc_frame *fp = buf->os_buf;
+ void *rq_buf = buf->os_buf;
struct fnic *fnic = vnic_dev_priv(rq->vdev);
dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,
DMA_FROM_DEVICE);
- dev_kfree_skb(fp_skb(fp));
+ kfree(rq_buf);
buf->os_buf = NULL;
}
-/**
- * fnic_eth_send() - Send Ethernet frame.
- * @fip: fcoe_ctlr instance.
- * @skb: Ethernet Frame, FIP, without VLAN encapsulation.
- */
-void fnic_eth_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
-{
- struct fnic *fnic = fnic_from_ctlr(fip);
- struct vnic_wq *wq = &fnic->wq[0];
- dma_addr_t pa;
- struct ethhdr *eth_hdr;
- struct vlan_ethhdr *vlan_hdr;
- unsigned long flags;
-
- if (!fnic->vlan_hw_insert) {
- eth_hdr = (struct ethhdr *)skb_mac_header(skb);
- vlan_hdr = skb_push(skb, sizeof(*vlan_hdr) - sizeof(*eth_hdr));
- memcpy(vlan_hdr, eth_hdr, 2 * ETH_ALEN);
- vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
- vlan_hdr->h_vlan_encapsulated_proto = eth_hdr->h_proto;
- vlan_hdr->h_vlan_TCI = htons(fnic->vlan_id);
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_SEND|0x80, (char *)eth_hdr, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
- }
- } else {
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_SEND|0x80, (char *)skb->data, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
- }
- }
-
- pa = dma_map_single(&fnic->pdev->dev, skb->data, skb->len,
- DMA_TO_DEVICE);
- if (dma_mapping_error(&fnic->pdev->dev, pa)) {
- printk(KERN_ERR "DMA mapping failed\n");
- goto free_skb;
- }
-
- spin_lock_irqsave(&fnic->wq_lock[0], flags);
- if (!vnic_wq_desc_avail(wq))
- goto irq_restore;
-
- fnic_queue_wq_eth_desc(wq, skb, pa, skb->len,
- 0 /* hw inserts cos value */,
- fnic->vlan_id, 1);
- spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
- return;
-
-irq_restore:
- spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
- dma_unmap_single(&fnic->pdev->dev, pa, skb->len, DMA_TO_DEVICE);
-free_skb:
- kfree_skb(skb);
-}
-
/*
* Send FC frame.
*/
-static int fnic_send_frame(struct fnic *fnic, struct fc_frame *fp)
+static int fnic_send_frame(struct fnic *fnic, void *frame, int frame_len)
{
struct vnic_wq *wq = &fnic->wq[0];
- struct sk_buff *skb;
dma_addr_t pa;
- struct ethhdr *eth_hdr;
- struct vlan_ethhdr *vlan_hdr;
- struct fcoe_hdr *fcoe_hdr;
- struct fc_frame_header *fh;
- u32 tot_len, eth_hdr_len;
int ret = 0;
unsigned long flags;
- fh = fc_frame_header_get(fp);
- skb = fp_skb(fp);
+ pa = dma_map_single(&fnic->pdev->dev, frame, frame_len, DMA_TO_DEVICE);
- if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ) &&
- fcoe_ctlr_els_send(&fnic->ctlr, fnic->lport, skb))
- return 0;
-
- if (!fnic->vlan_hw_insert) {
- eth_hdr_len = sizeof(*vlan_hdr) + sizeof(*fcoe_hdr);
- vlan_hdr = skb_push(skb, eth_hdr_len);
- eth_hdr = (struct ethhdr *)vlan_hdr;
- vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
- vlan_hdr->h_vlan_encapsulated_proto = htons(ETH_P_FCOE);
- vlan_hdr->h_vlan_TCI = htons(fnic->vlan_id);
- fcoe_hdr = (struct fcoe_hdr *)(vlan_hdr + 1);
- } else {
- eth_hdr_len = sizeof(*eth_hdr) + sizeof(*fcoe_hdr);
- eth_hdr = skb_push(skb, eth_hdr_len);
- eth_hdr->h_proto = htons(ETH_P_FCOE);
- fcoe_hdr = (struct fcoe_hdr *)(eth_hdr + 1);
- }
-
- if (fnic->ctlr.map_dest)
- fc_fcoe_set_mac(eth_hdr->h_dest, fh->fh_d_id);
- else
- memcpy(eth_hdr->h_dest, fnic->ctlr.dest_addr, ETH_ALEN);
- memcpy(eth_hdr->h_source, fnic->data_src_addr, ETH_ALEN);
-
- tot_len = skb->len;
- BUG_ON(tot_len % 4);
-
- memset(fcoe_hdr, 0, sizeof(*fcoe_hdr));
- fcoe_hdr->fcoe_sof = fr_sof(fp);
- if (FC_FCOE_VER)
- FC_FCOE_ENCAPS_VER(fcoe_hdr, FC_FCOE_VER);
-
- pa = dma_map_single(&fnic->pdev->dev, eth_hdr, tot_len, DMA_TO_DEVICE);
- if (dma_mapping_error(&fnic->pdev->dev, pa)) {
- ret = -ENOMEM;
- printk(KERN_ERR "DMA map failed with error %d\n", ret);
- goto free_skb_on_err;
- }
-
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no, FNIC_FC_SEND,
- (char *)eth_hdr, tot_len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
+ if ((fnic_fc_trace_set_data(fnic->fnic_num,
+ FNIC_FC_SEND | 0x80, (char *) frame,
+ frame_len)) != 0) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic ctlr frame trace error");
}
spin_lock_irqsave(&fnic->wq_lock[0], flags);
if (!vnic_wq_desc_avail(wq)) {
- dma_unmap_single(&fnic->pdev->dev, pa, tot_len, DMA_TO_DEVICE);
+ dma_unmap_single(&fnic->pdev->dev, pa, frame_len, DMA_TO_DEVICE);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "vnic work queue descriptor is not available");
ret = -1;
- goto irq_restore;
+ goto fnic_send_frame_end;
}
- fnic_queue_wq_desc(wq, skb, pa, tot_len, fr_eof(fp),
- 0 /* hw inserts cos value */,
- fnic->vlan_id, 1, 1, 1);
+ /* hw inserts cos value */
+ fnic_queue_wq_desc(wq, frame, pa, frame_len, FC_EOF_T,
+ 0, fnic->vlan_id, 1, 1, 1);
-irq_restore:
+fnic_send_frame_end:
spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
-
-free_skb_on_err:
- if (ret)
- dev_kfree_skb_any(fp_skb(fp));
-
return ret;
}
-/*
- * fnic_send
- * Routine to send a raw frame
+/**
+ * fdls_send_fcoe_frame - send a filled-in FC frame, filling in eth and FCoE
+ * info. This interface is used only in the non fast path. (login, fabric
+ * registrations etc.)
+ *
+ * @fnic: fnic instance
+ * @frame: frame structure with FC payload filled in
+ * @frame_size: length of the frame to be sent
+ * @srcmac: source mac address
+ * @dstmac: destination mac address
+ *
+ * Called with the fnic lock held.
*/
-int fnic_send(struct fc_lport *lp, struct fc_frame *fp)
+static int
+fdls_send_fcoe_frame(struct fnic *fnic, void *frame, int frame_size,
+ uint8_t *srcmac, uint8_t *dstmac)
{
- struct fnic *fnic = lport_priv(lp);
- unsigned long flags;
+ struct ethhdr *pethhdr;
+ struct fcoe_hdr *pfcoe_hdr;
+ struct fnic_frame_list *frame_elem;
+ int len = frame_size;
+ int ret;
+ struct fc_frame_header *fchdr = (struct fc_frame_header *) (frame +
+ FNIC_ETH_FCOE_HDRS_OFFSET);
- if (fnic->in_remove) {
- dev_kfree_skb(fp_skb(fp));
- return -1;
- }
+ pethhdr = (struct ethhdr *) frame;
+ pethhdr->h_proto = cpu_to_be16(ETH_P_FCOE);
+ memcpy(pethhdr->h_source, srcmac, ETH_ALEN);
+ memcpy(pethhdr->h_dest, dstmac, ETH_ALEN);
+
+ pfcoe_hdr = (struct fcoe_hdr *) (frame + sizeof(struct ethhdr));
+ pfcoe_hdr->fcoe_sof = FC_SOF_I3;
/*
* Queue frame if in a transitional state.
* This occurs while registering the Port_ID / MAC address after FLOGI.
*/
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->state != FNIC_IN_FC_MODE && fnic->state != FNIC_IN_ETH_MODE) {
- skb_queue_tail(&fnic->tx_queue, fp_skb(fp));
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ if ((fnic->state != FNIC_IN_FC_MODE)
+ && (fnic->state != FNIC_IN_ETH_MODE)) {
+ frame_elem = mempool_alloc(fnic->frame_elem_pool,
+ GFP_ATOMIC | __GFP_ZERO);
+ if (!frame_elem) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Failed to allocate memory for frame elem");
+ return -ENOMEM;
+ }
+
+ FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Queueing FC frame: sid/did/type/oxid = 0x%x/0x%x/0x%x/0x%x\n",
+ ntoh24(fchdr->fh_s_id), ntoh24(fchdr->fh_d_id),
+ fchdr->fh_type, FNIC_STD_GET_OX_ID(fchdr));
+ frame_elem->fp = frame;
+ frame_elem->frame_len = len;
+ list_add_tail(&frame_elem->links, &fnic->tx_queue);
return 0;
}
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return fnic_send_frame(fnic, fp);
+ fnic_debug_dump_fc_frame(fnic, fchdr, frame_size, "Outgoing");
+
+ ret = fnic_send_frame(fnic, frame, len);
+ return ret;
+}
+
+void fnic_send_fcoe_frame(struct fnic_iport_s *iport, void *frame,
+ int frame_size)
+{
+ struct fnic *fnic = iport->fnic;
+ uint8_t *dstmac, *srcmac;
+
+ /* If module unload is in-progress, don't send */
+ if (fnic->in_remove)
+ return;
+
+ if (iport->fabric.flags & FNIC_FDLS_FPMA_LEARNT) {
+ srcmac = iport->fpma;
+ dstmac = iport->fcfmac;
+ } else {
+ srcmac = iport->hwmac;
+ dstmac = FCOE_ALL_FCF_MAC;
+ }
+
+ fdls_send_fcoe_frame(fnic, frame, frame_size, srcmac, dstmac);
+}
+
+int
+fnic_send_fip_frame(struct fnic_iport_s *iport, void *frame,
+ int frame_size)
+{
+ struct fnic *fnic = iport->fnic;
+
+ if (fnic->in_remove)
+ return -1;
+
+ fnic_debug_dump_fip_frame(fnic, frame, frame_size, "Outgoing");
+ return fnic_send_frame(fnic, frame, frame_size);
}
/**
@@ -1193,64 +773,87 @@ int fnic_send(struct fc_lport *lp, struct fc_frame *fp)
void fnic_flush_tx(struct work_struct *work)
{
struct fnic *fnic = container_of(work, struct fnic, flush_work);
- struct sk_buff *skb;
struct fc_frame *fp;
+ struct fnic_frame_list *cur_frame, *next;
- while ((skb = skb_dequeue(&fnic->tx_queue))) {
- fp = (struct fc_frame *)skb;
- fnic_send_frame(fnic, fp);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Flush queued frames");
+
+ list_for_each_entry_safe(cur_frame, next, &fnic->tx_queue, links) {
+ fp = cur_frame->fp;
+ list_del(&cur_frame->links);
+ fnic_send_frame(fnic, fp, cur_frame->frame_len);
+ mempool_free(cur_frame, fnic->frame_elem_pool);
}
}
-/**
- * fnic_set_eth_mode() - put fnic into ethernet mode.
- * @fnic: fnic device
- *
- * Called without fnic lock held.
- */
-static void fnic_set_eth_mode(struct fnic *fnic)
+int
+fnic_fdls_register_portid(struct fnic_iport_s *iport, u32 port_id,
+ void *fp)
{
- unsigned long flags;
- enum fnic_state old_state;
+ struct fnic *fnic = iport->fnic;
+ struct ethhdr *ethhdr;
int ret;
- spin_lock_irqsave(&fnic->fnic_lock, flags);
-again:
- old_state = fnic->state;
- switch (old_state) {
- case FNIC_IN_FC_MODE:
- case FNIC_IN_ETH_TRANS_FC_MODE:
- default:
- fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Setting port id: 0x%x fp: 0x%p fnic state: %d", port_id,
+ fp, fnic->state);
- ret = fnic_fw_reset_handler(fnic);
+ if (fp) {
+ ethhdr = (struct ethhdr *) fp;
+ vnic_dev_add_addr(fnic->vdev, ethhdr->h_dest);
+ }
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->state != FNIC_IN_FC_TRANS_ETH_MODE)
- goto again;
- if (ret)
- fnic->state = old_state;
- break;
-
- case FNIC_IN_FC_TRANS_ETH_MODE:
- case FNIC_IN_ETH_MODE:
- break;
+ /* Change state to reflect transition to FC mode */
+ if (fnic->state == FNIC_IN_ETH_MODE || fnic->state == FNIC_IN_FC_MODE)
+ fnic->state = FNIC_IN_ETH_TRANS_FC_MODE;
+ else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Unexpected fnic state while processing FLOGI response\n");
+ return -1;
+ }
+
+ /*
+ * Send FLOGI registration to firmware to set up FC mode.
+ * The new address will be set up when registration completes.
+ */
+ ret = fnic_flogi_reg_handler(fnic, port_id);
+ if (ret < 0) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI registration error ret: %d fnic state: %d\n",
+ ret, fnic->state);
+ if (fnic->state == FNIC_IN_ETH_TRANS_FC_MODE)
+ fnic->state = FNIC_IN_ETH_MODE;
+
+ return -1;
+ }
+ iport->fabric.flags |= FNIC_FDLS_FPMA_LEARNT;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI registration success\n");
+ return 0;
+}
+
+void fnic_free_txq(struct list_head *head)
+{
+ struct fnic_frame_list *cur_frame, *next;
+
+ list_for_each_entry_safe(cur_frame, next, head, links) {
+ list_del(&cur_frame->links);
+ kfree(cur_frame->fp);
+ kfree(cur_frame);
}
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
}
static void fnic_wq_complete_frame_send(struct vnic_wq *wq,
struct cq_desc *cq_desc,
struct vnic_wq_buf *buf, void *opaque)
{
- struct sk_buff *skb = buf->os_buf;
- struct fc_frame *fp = (struct fc_frame *)skb;
struct fnic *fnic = vnic_dev_priv(wq->vdev);
dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,
DMA_TO_DEVICE);
- dev_kfree_skb_irq(fp_skb(fp));
+ mempool_free(buf->os_buf, fnic->frame_pool);
buf->os_buf = NULL;
}
@@ -1288,119 +891,218 @@ int fnic_wq_cmpl_handler(struct fnic *fnic, int work_to_do)
void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf)
{
- struct fc_frame *fp = buf->os_buf;
struct fnic *fnic = vnic_dev_priv(wq->vdev);
dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,
DMA_TO_DEVICE);
- dev_kfree_skb(fp_skb(fp));
+ kfree(buf->os_buf);
buf->os_buf = NULL;
}
-void fnic_fcoe_reset_vlans(struct fnic *fnic)
+void
+fnic_fdls_add_tport(struct fnic_iport_s *iport, struct fnic_tport_s *tport,
+ unsigned long flags)
+{
+ struct fnic *fnic = iport->fnic;
+ struct fc_rport *rport;
+ struct fc_rport_identifiers ids;
+ struct rport_dd_data_s *rdd_data;
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Adding rport fcid: 0x%x", tport->fcid);
+
+ ids.node_name = tport->wwnn;
+ ids.port_name = tport->wwpn;
+ ids.port_id = tport->fcid;
+ ids.roles = FC_RPORT_ROLE_FCP_TARGET;
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ rport = fc_remote_port_add(fnic->host, 0, &ids);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if (!rport) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Failed to add rport for tport: 0x%x", tport->fcid);
+ return;
+ }
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Added rport fcid: 0x%x", tport->fcid);
+
+ /* Mimic these assignments in queuecommand to avoid timing issues */
+ rport->maxframe_size = FNIC_FC_MAX_PAYLOAD_LEN;
+ rport->supported_classes = FC_COS_CLASS3 | FC_RPORT_ROLE_FCP_TARGET;
+ rdd_data = rport->dd_data;
+ rdd_data->tport = tport;
+ rdd_data->iport = iport;
+ tport->rport = rport;
+ tport->flags |= FNIC_FDLS_SCSI_REGISTERED;
+}
+
+void
+fnic_fdls_remove_tport(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport, unsigned long flags)
+{
+ struct fnic *fnic = iport->fnic;
+ struct rport_dd_data_s *rdd_data;
+
+ struct fc_rport *rport;
+
+ if (!tport)
+ return;
+
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_OFFLINE);
+ rport = tport->rport;
+
+ if (rport) {
+ /* tport resource release will be done
+ * after fnic_terminate_rport_io()
+ */
+ tport->flags |= FNIC_FDLS_TPORT_DELETED;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ /* Interface to scsi_fc_transport */
+ fc_remote_port_delete(rport);
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Deregistered and freed tport fcid: 0x%x from scsi transport fc",
+ tport->fcid);
+
+ /*
+ * the dd_data is allocated by fc transport
+ * of size dd_fcrport_size
+ */
+ rdd_data = rport->dd_data;
+ rdd_data->tport = NULL;
+ rdd_data->iport = NULL;
+ list_del(&tport->links);
+ kfree(tport);
+ } else {
+ fnic_del_tport_timer_sync(fnic, tport);
+ list_del(&tport->links);
+ kfree(tport);
+ }
+}
+
+void fnic_delete_fcp_tports(struct fnic *fnic)
{
+ struct fnic_tport_s *tport, *next;
unsigned long flags;
- struct fcoe_vlan *vlan;
- struct fcoe_vlan *next;
- /*
- * indicate a link down to fcoe so that all fcf's are free'd
- * might not be required since we did this before sending vlan
- * discovery request
- */
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- if (!list_empty(&fnic->vlans)) {
- list_for_each_entry_safe(vlan, next, &fnic->vlans, list) {
- list_del(&vlan->list);
- kfree(vlan);
- }
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_for_each_entry_safe(tport, next, &fnic->iport.tport_list, links) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "removing fcp rport fcid: 0x%x", tport->fcid);
+ fdls_set_tport_state(tport, FDLS_TGT_STATE_OFFLINING);
+ fnic_del_tport_timer_sync(fnic, tport);
+ fnic_fdls_remove_tport(&fnic->iport, tport, flags);
}
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
}
-void fnic_handle_fip_timer(struct fnic *fnic)
+/**
+ * fnic_tport_event_handler() - Handler for remote port events
+ * in the tport_event_queue.
+ *
+ * @work: Handle to the remote port being dequeued
+ */
+void fnic_tport_event_handler(struct work_struct *work)
{
+ struct fnic *fnic = container_of(work, struct fnic, tport_work);
+ struct fnic_tport_event_s *cur_evt, *next;
unsigned long flags;
- struct fcoe_vlan *vlan;
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- u64 sol_time;
+ struct fnic_tport_s *tport;
spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->stop_rx_link_events) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
+ list_for_each_entry_safe(cur_evt, next, &fnic->tport_event_list, links) {
+ tport = cur_evt->arg1;
+ switch (cur_evt->event) {
+ case TGT_EV_RPORT_ADD:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Add rport event");
+ if (tport->state == FDLS_TGT_STATE_READY) {
+ fnic_fdls_add_tport(&fnic->iport,
+ (struct fnic_tport_s *) cur_evt->arg1, flags);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Target not ready. Add rport event dropped: 0x%x",
+ tport->fcid);
+ }
+ break;
+ case TGT_EV_RPORT_DEL:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Remove rport event");
+ if (tport->state == FDLS_TGT_STATE_OFFLINING) {
+ fnic_fdls_remove_tport(&fnic->iport,
+ (struct fnic_tport_s *) cur_evt->arg1, flags);
+ } else {
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "remove rport event dropped tport fcid: 0x%x",
+ tport->fcid);
+ }
+ break;
+ case TGT_EV_TPORT_DELETE:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Delete tport event");
+ fdls_delete_tport(tport->iport, tport);
+ break;
+ default:
+ FNIC_FCS_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Unknown tport event");
+ break;
+ }
+ list_del(&cur_evt->links);
+ kfree(cur_evt);
}
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+}
- if (fnic->ctlr.mode == FIP_MODE_NON_FIP)
- return;
+void fnic_flush_tport_event_list(struct fnic *fnic)
+{
+ struct fnic_tport_event_s *cur_evt, *next;
+ unsigned long flags;
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- if (list_empty(&fnic->vlans)) {
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- /* no vlans available, try again */
- if (unlikely(fnic_log_level & FNIC_FCS_LOGGING))
- if (printk_ratelimit())
- shost_printk(KERN_DEBUG, fnic->lport->host,
- "Start VLAN Discovery\n");
- fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
- return;
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_for_each_entry_safe(cur_evt, next, &fnic->tport_event_list, links) {
+ list_del(&cur_evt->links);
+ kfree(cur_evt);
}
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+}
- vlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fip_timer: vlan %d state %d sol_count %d\n",
- vlan->vid, vlan->state, vlan->sol_count);
- switch (vlan->state) {
- case FIP_VLAN_USED:
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "FIP VLAN is selected for FC transaction\n");
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- break;
- case FIP_VLAN_FAILED:
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- /* if all vlans are in failed state, restart vlan disc */
- if (unlikely(fnic_log_level & FNIC_FCS_LOGGING))
- if (printk_ratelimit())
- shost_printk(KERN_DEBUG, fnic->lport->host,
- "Start VLAN Discovery\n");
- fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
- break;
- case FIP_VLAN_SENT:
- if (vlan->sol_count >= FCOE_CTLR_MAX_SOL) {
- /*
- * no response on this vlan, remove from the list.
- * Try the next vlan
- */
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Dequeue this VLAN ID %d from list\n",
- vlan->vid);
- list_del(&vlan->list);
- kfree(vlan);
- vlan = NULL;
- if (list_empty(&fnic->vlans)) {
- /* we exhausted all vlans, restart vlan disc */
- spin_unlock_irqrestore(&fnic->vlans_lock,
- flags);
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "fip_timer: vlan list empty, "
- "trigger vlan disc\n");
- fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
- return;
- }
- /* check the next vlan */
- vlan = list_first_entry(&fnic->vlans, struct fcoe_vlan,
- list);
- fnic->set_vlan(fnic, vlan->vid);
- vlan->state = FIP_VLAN_SENT; /* sent now */
- }
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- atomic64_inc(&fnic_stats->vlan_stats.sol_expiry_count);
- vlan->sol_count++;
- sol_time = jiffies + msecs_to_jiffies
- (FCOE_CTLR_START_DELAY);
- mod_timer(&fnic->fip_timer, round_jiffies(sol_time));
- break;
+void fnic_reset_work_handler(struct work_struct *work)
+{
+ struct fnic *cur_fnic, *next_fnic;
+ unsigned long reset_fnic_list_lock_flags;
+ int host_reset_ret_code;
+
+ /*
+ * This is a single thread. It is per fnic module, not per fnic
+ * All the fnics that need to be reset
+ * have been serialized via the reset fnic list.
+ */
+ spin_lock_irqsave(&reset_fnic_list_lock, reset_fnic_list_lock_flags);
+ list_for_each_entry_safe(cur_fnic, next_fnic, &reset_fnic_list, links) {
+ list_del(&cur_fnic->links);
+ spin_unlock_irqrestore(&reset_fnic_list_lock,
+ reset_fnic_list_lock_flags);
+
+ dev_err(&cur_fnic->pdev->dev, "fnic: <%d>: issuing a host reset\n",
+ cur_fnic->fnic_num);
+ host_reset_ret_code = fnic_host_reset(cur_fnic->host);
+ dev_err(&cur_fnic->pdev->dev,
+ "fnic: <%d>: returned from host reset with status: %d\n",
+ cur_fnic->fnic_num, host_reset_ret_code);
+
+ spin_lock_irqsave(&cur_fnic->fnic_lock, cur_fnic->lock_flags);
+ cur_fnic->pc_rscn_handling_status =
+ PC_RSCN_HANDLING_NOT_IN_PROGRESS;
+ spin_unlock_irqrestore(&cur_fnic->fnic_lock, cur_fnic->lock_flags);
+
+ spin_lock_irqsave(&reset_fnic_list_lock,
+ reset_fnic_list_lock_flags);
}
+ spin_unlock_irqrestore(&reset_fnic_list_lock,
+ reset_fnic_list_lock_flags);
}
diff --git a/drivers/scsi/fnic/fnic_fdls.h b/drivers/scsi/fnic/fnic_fdls.h
new file mode 100644
index 000000000000..8e610b65ad57
--- /dev/null
+++ b/drivers/scsi/fnic/fnic_fdls.h
@@ -0,0 +1,434 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ */
+
+#ifndef _FNIC_FDLS_H_
+#define _FNIC_FDLS_H_
+
+#include "fnic_stats.h"
+#include "fdls_fc.h"
+
+/* FDLS - Fabric discovery and login services
+ * -> VLAN discovery
+ * -> retry every retry delay seconds until it succeeds.
+ * <- List of VLANs
+ *
+ * -> Solicitation
+ * <- Solicitation response (Advertisement)
+ *
+ * -> FCF selection & FLOGI ( FLOGI timeout - 2 * E_D_TOV)
+ * <- FLOGI response
+ *
+ * -> FCF keep alive
+ * <- FCF keep alive
+ *
+ * -> PLOGI to FFFFFC (DNS) (PLOGI timeout - 2 * R_A_TOV)
+ * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV)
+ * <- PLOGI response
+ * -> Retry PLOGI to FFFFFC (DNS) - Number of retries from vnic.cfg
+ *
+ * -> SCR to FFFFFC (DNS) (SCR timeout - 2 * R_A_TOV)
+ * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV)
+ * <- SCR response
+ * -> Retry SCR - Number of retries 2
+ *
+ * -> GPN_FT to FFFFFC (GPN_FT timeout - 2 * R_A_TOV)a
+ * -> Retry on BUSY until it succeeds
+ * -> Retry on BUSY until it succeeds
+ * -> 2 retries on timeout
+ *
+ * -> RFT_ID to FFFFFC (DNS) (RFT_ID timeout - 3 * R_A_TOV)
+ * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV)
+ * -> Retry RFT_ID to FFFFFC (DNS) (Number of retries 2 )
+ * -> Ignore if both retires fail.
+ *
+ * Session establishment with targets
+ * For each PWWN
+ * -> PLOGI to FCID of that PWWN (PLOGI timeout 2 * R_A_TOV)
+ * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV)
+ * <- PLOGI response
+ * -> Retry PLOGI. Num retries using vnic.cfg
+ *
+ * -> PRLI to FCID of that PWWN (PRLI timeout 2 * R_A_TOV)
+ * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV)
+ * <- PRLI response
+ * -> Retry PRLI. Num retries using vnic.cfg
+ *
+ */
+
+#define FDLS_RETRY_COUNT 2
+
+/*
+ * OXID encoding:
+ * bits 0-8: oxid idx - allocated from poool
+ * bits 9-13: oxid frame code from fnic_oxid_frame_type_e
+ * bits 14-15: all zeros
+ */
+#define FNIC_OXID_POOL_SZ (512) /* always power of 2 */
+#define FNIC_OXID_ENCODE(idx, frame_type) (frame_type | idx)
+#define FNIC_FRAME_MASK 0xFE00
+#define FNIC_FRAME_TYPE(oxid) (oxid & FNIC_FRAME_MASK)
+#define FNIC_OXID_IDX(oxid) ((oxid) & (FNIC_OXID_POOL_SZ - 1))
+
+#define OXID_RECLAIM_TOV(iport) (2 * iport->r_a_tov) /* in milliseconds */
+
+#define FNIC_FDLS_FABRIC_ABORT_ISSUED 0x1
+#define FNIC_FDLS_FPMA_LEARNT 0x2
+
+/* tport flags */
+#define FNIC_FDLS_TPORT_IN_GPN_FT_LIST 0x1
+#define FNIC_FDLS_TGT_ABORT_ISSUED 0x2
+#define FNIC_FDLS_TPORT_SEND_ADISC 0x4
+#define FNIC_FDLS_RETRY_FRAME 0x8
+#define FNIC_FDLS_TPORT_BUSY 0x10
+#define FNIC_FDLS_TPORT_TERMINATING 0x20
+#define FNIC_FDLS_TPORT_DELETED 0x40
+#define FNIC_FDLS_SCSI_REGISTERED 0x200
+
+/* Retry supported by rport(returned by prli service parameters) */
+#define FDLS_FC_RP_FLAGS_RETRY 0x1
+
+#define fdls_set_state(_fdls_fabric, _state) ((_fdls_fabric)->state = _state)
+#define fdls_get_state(_fdls_fabric) ((_fdls_fabric)->state)
+
+#define FNIC_FDMI_ACTIVE 0x8
+#define FNIC_FIRST_LINK_UP 0x2
+
+#define fdls_set_tport_state(_tport, _state) (_tport->state = _state)
+#define fdls_get_tport_state(_tport) (_tport->state)
+
+#define FNIC_PORTSPEED_10GBIT 1
+#define FNIC_FRAME_HT_ROOM (2148)
+#define FNIC_FCOE_FRAME_MAXSZ (2112)
+
+
+#define FNIC_FRAME_TYPE_FABRIC_FLOGI 0x1000
+#define FNIC_FRAME_TYPE_FABRIC_PLOGI 0x1200
+#define FNIC_FRAME_TYPE_FABRIC_RPN 0x1400
+#define FNIC_FRAME_TYPE_FABRIC_RFT 0x1600
+#define FNIC_FRAME_TYPE_FABRIC_RFF 0x1800
+#define FNIC_FRAME_TYPE_FABRIC_SCR 0x1A00
+#define FNIC_FRAME_TYPE_FABRIC_GPN_FT 0x1C00
+#define FNIC_FRAME_TYPE_FABRIC_LOGO 0x1E00
+#define FNIC_FRAME_TYPE_FDMI_PLOGI 0x2000
+#define FNIC_FRAME_TYPE_FDMI_RHBA 0x2200
+#define FNIC_FRAME_TYPE_FDMI_RPA 0x2400
+#define FNIC_FRAME_TYPE_TGT_PLOGI 0x2600
+#define FNIC_FRAME_TYPE_TGT_PRLI 0x2800
+#define FNIC_FRAME_TYPE_TGT_ADISC 0x2A00
+#define FNIC_FRAME_TYPE_TGT_LOGO 0x2C00
+
+struct fnic_fip_fcf_s {
+ uint16_t vlan_id;
+ uint8_t fcf_mac[6];
+ uint8_t fcf_priority;
+ uint32_t fka_adv_period;
+ uint8_t ka_disabled;
+};
+
+enum fnic_fdls_state_e {
+ FDLS_STATE_INIT = 0,
+ FDLS_STATE_LINKDOWN,
+ FDLS_STATE_FABRIC_LOGO,
+ FDLS_STATE_FLOGO_DONE,
+ FDLS_STATE_FABRIC_FLOGI,
+ FDLS_STATE_FABRIC_PLOGI,
+ FDLS_STATE_RPN_ID,
+ FDLS_STATE_REGISTER_FC4_TYPES,
+ FDLS_STATE_REGISTER_FC4_FEATURES,
+ FDLS_STATE_SCR,
+ FDLS_STATE_GPN_FT,
+ FDLS_STATE_TGT_DISCOVERY,
+ FDLS_STATE_RSCN_GPN_FT,
+ FDLS_STATE_SEND_GPNFT
+};
+
+struct fnic_fdls_fabric_s {
+ enum fnic_fdls_state_e state;
+ uint32_t flags;
+ struct list_head tport_list; /* List of discovered tports */
+ struct timer_list retry_timer;
+ int del_timer_inprogress;
+ int del_fdmi_timer_inprogress;
+ int retry_counter;
+ int timer_pending;
+ int fdmi_retry;
+ struct timer_list fdmi_timer;
+ int fdmi_pending;
+};
+
+struct fnic_fdls_fip_s {
+ uint32_t state;
+ uint32_t flogi_retry;
+};
+
+/* Message to tport_event_handler */
+enum fnic_tgt_msg_id {
+ TGT_EV_NONE = 0,
+ TGT_EV_RPORT_ADD,
+ TGT_EV_RPORT_DEL,
+ TGT_EV_TPORT_DELETE,
+ TGT_EV_REMOVE
+};
+
+struct fnic_tport_event_s {
+ struct list_head links;
+ enum fnic_tgt_msg_id event;
+ void *arg1;
+};
+
+enum fdls_tgt_state_e {
+ FDLS_TGT_STATE_INIT = 0,
+ FDLS_TGT_STATE_PLOGI,
+ FDLS_TGT_STATE_PRLI,
+ FDLS_TGT_STATE_READY,
+ FDLS_TGT_STATE_LOGO_RECEIVED,
+ FDLS_TGT_STATE_ADISC,
+ FDL_TGT_STATE_PLOGO,
+ FDLS_TGT_STATE_OFFLINING,
+ FDLS_TGT_STATE_OFFLINE
+};
+
+struct fnic_tport_s {
+ struct list_head links; /* To link the tports */
+ enum fdls_tgt_state_e state;
+ uint32_t flags;
+ uint32_t fcid;
+ uint64_t wwpn;
+ uint64_t wwnn;
+ uint16_t active_oxid;
+ uint16_t tgt_flags;
+ atomic_t in_flight; /* io counter */
+ uint16_t max_payload_size;
+ uint16_t r_a_tov;
+ uint16_t e_d_tov;
+ uint16_t lun0_delay;
+ int max_concur_seqs;
+ uint32_t fcp_csp;
+ struct timer_list retry_timer;
+ int del_timer_inprogress;
+ int retry_counter;
+ int timer_pending;
+ unsigned int num_pending_cmds;
+ int nexus_restart_count;
+ int exch_reset_in_progress;
+ void *iport;
+ struct work_struct tport_del_work;
+ struct completion *tport_del_done;
+ struct fc_rport *rport;
+ char str_wwpn[20];
+ char str_wwnn[20];
+};
+
+/* OXID pool related structures */
+struct reclaim_entry_s {
+ struct list_head links;
+ /* oxid that needs to be freed after 2*r_a_tov */
+ uint16_t oxid_idx;
+ /* in jiffies. Use this to waiting time */
+ unsigned long expires;
+ unsigned long *bitmap;
+};
+
+/* used for allocating oxids for fabric and fdmi requests */
+struct fnic_oxid_pool_s {
+ DECLARE_BITMAP(bitmap, FNIC_OXID_POOL_SZ);
+ int sz; /* size of the pool or block */
+ int next_idx; /* used for cycling through the oxid pool */
+
+ /* retry schedule free */
+ DECLARE_BITMAP(pending_schedule_free, FNIC_OXID_POOL_SZ);
+ struct delayed_work schedule_oxid_free_retry;
+
+ /* List of oxids that need to be freed and reclaimed.
+ * This list is shared by all the oxid pools
+ */
+ struct list_head oxid_reclaim_list;
+ /* Work associated with reclaim list */
+ struct delayed_work oxid_reclaim_work;
+};
+
+/* iport */
+enum fnic_iport_state_e {
+ FNIC_IPORT_STATE_INIT = 0,
+ FNIC_IPORT_STATE_LINK_WAIT,
+ FNIC_IPORT_STATE_FIP,
+ FNIC_IPORT_STATE_FABRIC_DISC,
+ FNIC_IPORT_STATE_READY
+};
+
+struct fnic_iport_s {
+ enum fnic_iport_state_e state;
+ struct fnic *fnic;
+ uint64_t boot_time;
+ uint32_t flags;
+ int usefip;
+ uint8_t hwmac[6]; /* HW MAC Addr */
+ uint8_t fpma[6]; /* Fabric Provided MA */
+ uint8_t fcfmac[6]; /* MAC addr of Fabric */
+ uint16_t vlan_id;
+ uint32_t fcid;
+
+ /* oxid pool */
+ struct fnic_oxid_pool_s oxid_pool;
+
+ /*
+ * fabric reqs are serialized and only one req at a time.
+ * Tracking the oxid for sending abort
+ */
+ uint16_t active_oxid_fabric_req;
+ /* fdmi only */
+ uint16_t active_oxid_fdmi_plogi;
+ uint16_t active_oxid_fdmi_rhba;
+ uint16_t active_oxid_fdmi_rpa;
+
+ struct fnic_fip_fcf_s selected_fcf;
+ struct fnic_fdls_fip_s fip;
+ struct fnic_fdls_fabric_s fabric;
+ struct list_head tport_list;
+ struct list_head tport_list_pending_del;
+ /* list of tports for which we are yet to send PLOGO */
+ struct list_head inprocess_tport_list;
+ struct list_head deleted_tport_list;
+ struct work_struct tport_event_work;
+ uint32_t e_d_tov; /* msec */
+ uint32_t r_a_tov; /* msec */
+ uint32_t link_supported_speeds;
+ uint32_t max_flogi_retries;
+ uint32_t max_plogi_retries;
+ uint32_t plogi_timeout;
+ uint32_t service_params;
+ uint64_t wwpn;
+ uint64_t wwnn;
+ uint16_t max_payload_size;
+ spinlock_t deleted_tport_lst_lock;
+ struct completion *flogi_reg_done;
+ struct fnic_iport_stats iport_stats;
+ char str_wwpn[20];
+ char str_wwnn[20];
+};
+
+struct rport_dd_data_s {
+ struct fnic_tport_s *tport;
+ struct fnic_iport_s *iport;
+};
+
+enum fnic_recv_frame_type_e {
+ FNIC_FABRIC_FLOGI_RSP = 1,
+ FNIC_FABRIC_PLOGI_RSP,
+ FNIC_FABRIC_RPN_RSP,
+ FNIC_FABRIC_RFT_RSP,
+ FNIC_FABRIC_RFF_RSP,
+ FNIC_FABRIC_SCR_RSP,
+ FNIC_FABRIC_GPN_FT_RSP,
+ FNIC_FABRIC_BLS_ABTS_RSP,
+ FNIC_FDMI_PLOGI_RSP,
+ FNIC_FDMI_REG_HBA_RSP,
+ FNIC_FDMI_RPA_RSP,
+ FNIC_FDMI_BLS_ABTS_RSP,
+ FNIC_FABRIC_LOGO_RSP,
+
+ /* responses to target requests */
+ FNIC_TPORT_PLOGI_RSP,
+ FNIC_TPORT_PRLI_RSP,
+ FNIC_TPORT_ADISC_RSP,
+ FNIC_TPORT_BLS_ABTS_RSP,
+ FNIC_TPORT_LOGO_RSP,
+
+ /* unsolicited requests */
+ FNIC_BLS_ABTS_REQ,
+ FNIC_ELS_PLOGI_REQ,
+ FNIC_ELS_RSCN_REQ,
+ FNIC_ELS_LOGO_REQ,
+ FNIC_ELS_ECHO_REQ,
+ FNIC_ELS_ADISC,
+ FNIC_ELS_RLS,
+ FNIC_ELS_RRQ,
+ FNIC_ELS_UNSUPPORTED_REQ,
+};
+
+enum fnic_port_speeds {
+ DCEM_PORTSPEED_NONE = 0,
+ DCEM_PORTSPEED_1G = 1000,
+ DCEM_PORTSPEED_2G = 2000,
+ DCEM_PORTSPEED_4G = 4000,
+ DCEM_PORTSPEED_8G = 8000,
+ DCEM_PORTSPEED_10G = 10000,
+ DCEM_PORTSPEED_16G = 16000,
+ DCEM_PORTSPEED_20G = 20000,
+ DCEM_PORTSPEED_25G = 25000,
+ DCEM_PORTSPEED_32G = 32000,
+ DCEM_PORTSPEED_40G = 40000,
+ DCEM_PORTSPEED_4x10G = 41000,
+ DCEM_PORTSPEED_50G = 50000,
+ DCEM_PORTSPEED_64G = 64000,
+ DCEM_PORTSPEED_100G = 100000,
+ DCEM_PORTSPEED_128G = 128000,
+};
+
+/* Function Declarations */
+/* fdls_disc.c */
+void fnic_fdls_disc_init(struct fnic_iport_s *iport);
+void fnic_fdls_disc_start(struct fnic_iport_s *iport);
+void fnic_fdls_recv_frame(struct fnic_iport_s *iport, void *rx_frame,
+ int len, int fchdr_offset);
+void fnic_fdls_link_down(struct fnic_iport_s *iport);
+int fdls_init_frame_pool(struct fnic_iport_s *iport);
+uint8_t *fdls_alloc_frame(struct fnic_iport_s *iport);
+uint16_t fdls_alloc_oxid(struct fnic_iport_s *iport, int oxid_frame_type,
+ uint16_t *active_oxid);
+void fdls_free_oxid(struct fnic_iport_s *iport,
+ uint16_t oxid, uint16_t *active_oxid);
+void fdls_tgt_logout(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport);
+void fnic_del_fabric_timer_sync(struct fnic *fnic);
+void fnic_del_tport_timer_sync(struct fnic *fnic,
+ struct fnic_tport_s *tport);
+void fdls_send_fabric_logo(struct fnic_iport_s *iport);
+int fnic_fdls_validate_and_get_frame_type(struct fnic_iport_s *iport,
+ struct fc_frame_header *fchdr);
+void fdls_send_tport_abts(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport);
+bool fdls_delete_tport(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport);
+void fdls_fdmi_timer_callback(struct timer_list *t);
+
+/* fnic_fcs.c */
+void fnic_fdls_init(struct fnic *fnic, int usefip);
+void fnic_send_fcoe_frame(struct fnic_iport_s *iport, void *frame,
+ int frame_size);
+void fnic_fcoe_send_vlan_req(struct fnic *fnic);
+int fnic_send_fip_frame(struct fnic_iport_s *iport,
+ void *frame, int frame_size);
+void fnic_fdls_learn_fcoe_macs(struct fnic_iport_s *iport, void *rx_frame,
+ uint8_t *fcid);
+void fnic_fdls_add_tport(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport, unsigned long flags);
+void fnic_fdls_remove_tport(struct fnic_iport_s *iport,
+ struct fnic_tport_s *tport,
+ unsigned long flags);
+
+/* fip.c */
+void fnic_fcoe_send_vlan_req(struct fnic *fnic);
+void fnic_common_fip_cleanup(struct fnic *fnic);
+int fdls_fip_recv_frame(struct fnic *fnic, void *frame);
+void fnic_handle_fcs_ka_timer(struct timer_list *t);
+void fnic_handle_enode_ka_timer(struct timer_list *t);
+void fnic_handle_vn_ka_timer(struct timer_list *t);
+void fnic_handle_fip_timer(struct timer_list *t);
+extern void fdls_fabric_timer_callback(struct timer_list *t);
+
+/* fnic_scsi.c */
+void fnic_scsi_fcpio_reset(struct fnic *fnic);
+extern void fdls_fabric_timer_callback(struct timer_list *t);
+void fnic_rport_exch_reset(struct fnic *fnic, u32 fcid);
+int fnic_fdls_register_portid(struct fnic_iport_s *iport, u32 port_id,
+ void *fp);
+struct fnic_tport_s *fnic_find_tport_by_fcid(struct fnic_iport_s *iport,
+ uint32_t fcid);
+struct fnic_tport_s *fnic_find_tport_by_wwpn(struct fnic_iport_s *iport,
+ uint64_t wwpn);
+
+#endif /* _FNIC_FDLS_H_ */
diff --git a/drivers/scsi/fnic/fnic_fip.h b/drivers/scsi/fnic/fnic_fip.h
deleted file mode 100644
index 79f53029737b..000000000000
--- a/drivers/scsi/fnic/fnic_fip.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright 2008 Cisco Systems, Inc. All rights reserved.
- * Copyright 2007 Nuova Systems, Inc. All rights reserved.
- */
-
-#ifndef _FNIC_FIP_H_
-#define _FNIC_FIP_H_
-
-
-#define FCOE_CTLR_START_DELAY 2000 /* ms after first adv. to choose FCF */
-#define FCOE_CTLR_FIPVLAN_TOV 2000 /* ms after FIP VLAN disc */
-#define FCOE_CTLR_MAX_SOL 8
-
-#define FINC_MAX_FLOGI_REJECTS 8
-
-struct vlan {
- __be16 vid;
- __be16 type;
-};
-
-/*
- * VLAN entry.
- */
-struct fcoe_vlan {
- struct list_head list;
- u16 vid; /* vlan ID */
- u16 sol_count; /* no. of sols sent */
- u16 state; /* state */
-};
-
-enum fip_vlan_state {
- FIP_VLAN_AVAIL = 0, /* don't do anything */
- FIP_VLAN_SENT = 1, /* sent */
- FIP_VLAN_USED = 2, /* succeed */
- FIP_VLAN_FAILED = 3, /* failed to response */
-};
-
-struct fip_vlan {
- struct ethhdr eth;
- struct fip_header fip;
- struct {
- struct fip_mac_desc mac;
- struct fip_wwn_desc wwnn;
- } desc;
-};
-
-#endif /* __FINC_FIP_H_ */
diff --git a/drivers/scsi/fnic/fnic_io.h b/drivers/scsi/fnic/fnic_io.h
index 5895ead20e14..0d974e040ab7 100644
--- a/drivers/scsi/fnic/fnic_io.h
+++ b/drivers/scsi/fnic/fnic_io.h
@@ -7,6 +7,7 @@
#define _FNIC_IO_H_
#include <scsi/fc/fc_fcp.h>
+#include "fnic_fdls.h"
#define FNIC_DFLT_SG_DESC_CNT 32
#define FNIC_MAX_SG_DESC_CNT 256 /* Maximum descriptors per sgl */
@@ -41,6 +42,8 @@ enum fnic_ioreq_state {
};
struct fnic_io_req {
+ struct fnic_iport_s *iport;
+ struct fnic_tport_s *tport;
struct host_sg_desc *sgl_list; /* sgl list */
void *sgl_list_alloc; /* sgl list address used for free */
dma_addr_t sense_buf_pa; /* dma address for sense buffer*/
@@ -55,15 +58,4 @@ struct fnic_io_req {
unsigned int tag;
struct scsi_cmnd *sc; /* midlayer's cmd pointer */
};
-
-enum fnic_port_speeds {
- DCEM_PORTSPEED_NONE = 0,
- DCEM_PORTSPEED_1G = 1000,
- DCEM_PORTSPEED_10G = 10000,
- DCEM_PORTSPEED_20G = 20000,
- DCEM_PORTSPEED_25G = 25000,
- DCEM_PORTSPEED_40G = 40000,
- DCEM_PORTSPEED_4x10G = 41000,
- DCEM_PORTSPEED_100G = 100000,
-};
#endif /* _FNIC_IO_H_ */
diff --git a/drivers/scsi/fnic/fnic_isr.c b/drivers/scsi/fnic/fnic_isr.c
index ff85441c6cea..7ed50b11afa6 100644
--- a/drivers/scsi/fnic/fnic_isr.c
+++ b/drivers/scsi/fnic/fnic_isr.c
@@ -7,7 +7,7 @@
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
-#include <scsi/libfc.h>
+#include <scsi/scsi_transport_fc.h>
#include <scsi/fc_frame.h>
#include "vnic_dev.h"
#include "vnic_intr.h"
@@ -222,7 +222,7 @@ int fnic_request_intr(struct fnic *fnic)
fnic->msix[i].devname,
fnic->msix[i].devid);
if (err) {
- FNIC_ISR_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"request_irq failed with error: %d\n",
err);
fnic_free_intr(fnic);
@@ -250,10 +250,10 @@ int fnic_set_intr_mode_msix(struct fnic *fnic)
* We need n RQs, m WQs, o Copy WQs, n+m+o CQs, and n+m+o+1 INTRs
* (last INTR is used for WQ/RQ errors and notification area)
*/
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"rq-array size: %d wq-array size: %d copy-wq array size: %d\n",
n, m, o);
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"rq_count: %d raw_wq_count: %d wq_copy_count: %d cq_count: %d\n",
fnic->rq_count, fnic->raw_wq_count,
fnic->wq_copy_count, fnic->cq_count);
@@ -265,17 +265,17 @@ int fnic_set_intr_mode_msix(struct fnic *fnic)
vec_count = pci_alloc_irq_vectors(fnic->pdev, min_irqs, vecs,
PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"allocated %d MSI-X vectors\n",
vec_count);
if (vec_count > 0) {
if (vec_count < vecs) {
- FNIC_ISR_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"interrupts number mismatch: vec_count: %d vecs: %d\n",
vec_count, vecs);
if (vec_count < min_irqs) {
- FNIC_ISR_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"no interrupts for copy wq\n");
return 1;
}
@@ -287,7 +287,7 @@ int fnic_set_intr_mode_msix(struct fnic *fnic)
fnic->wq_copy_count = vec_count - n - m - 1;
fnic->wq_count = fnic->raw_wq_count + fnic->wq_copy_count;
if (fnic->cq_count != vec_count - 1) {
- FNIC_ISR_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"CQ count: %d does not match MSI-X vector count: %d\n",
fnic->cq_count, vec_count);
fnic->cq_count = vec_count - 1;
@@ -295,23 +295,23 @@ int fnic_set_intr_mode_msix(struct fnic *fnic)
fnic->intr_count = vec_count;
fnic->err_intr_offset = fnic->rq_count + fnic->wq_count;
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"rq_count: %d raw_wq_count: %d copy_wq_base: %d\n",
fnic->rq_count,
fnic->raw_wq_count, fnic->copy_wq_base);
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"wq_copy_count: %d wq_count: %d cq_count: %d\n",
fnic->wq_copy_count,
fnic->wq_count, fnic->cq_count);
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"intr_count: %d err_intr_offset: %u",
fnic->intr_count,
fnic->err_intr_offset);
vnic_dev_set_intr_mode(fnic->vdev, VNIC_DEV_INTR_MODE_MSIX);
- FNIC_ISR_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"fnic using MSI-X\n");
return 0;
}
@@ -351,7 +351,7 @@ int fnic_set_intr_mode(struct fnic *fnic)
fnic->intr_count = 1;
fnic->err_intr_offset = 0;
- FNIC_ISR_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Using MSI Interrupts\n");
vnic_dev_set_intr_mode(fnic->vdev, VNIC_DEV_INTR_MODE_MSI);
@@ -377,7 +377,7 @@ int fnic_set_intr_mode(struct fnic *fnic)
fnic->cq_count = 3;
fnic->intr_count = 3;
- FNIC_ISR_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_ISR_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Using Legacy Interrupts\n");
vnic_dev_set_intr_mode(fnic->vdev, VNIC_DEV_INTR_MODE_INTX);
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index adec0df24bc4..9a357ff42085 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -16,21 +16,20 @@
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/if_ether.h>
-#include <linux/blk-mq-pci.h>
#include <scsi/fc/fc_fip.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_tcq.h>
-#include <scsi/libfc.h>
#include <scsi/fc_frame.h>
#include "vnic_dev.h"
#include "vnic_intr.h"
#include "vnic_stats.h"
#include "fnic_io.h"
-#include "fnic_fip.h"
#include "fnic.h"
+#include "fnic_fdls.h"
+#include "fdls_fc.h"
#define PCI_DEVICE_ID_CISCO_FNIC 0x0045
@@ -39,12 +38,18 @@
static struct kmem_cache *fnic_sgl_cache[FNIC_SGL_NUM_CACHES];
static struct kmem_cache *fnic_io_req_cache;
+static struct kmem_cache *fdls_frame_cache;
+static struct kmem_cache *fdls_frame_elem_cache;
static LIST_HEAD(fnic_list);
static DEFINE_SPINLOCK(fnic_list_lock);
static DEFINE_IDA(fnic_ida);
+struct work_struct reset_fnic_work;
+LIST_HEAD(reset_fnic_list);
+DEFINE_SPINLOCK(reset_fnic_list_lock);
+
/* Supported devices by fnic module */
-static struct pci_device_id fnic_id_table[] = {
+static const struct pci_device_id fnic_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) },
{ 0, }
};
@@ -60,6 +65,14 @@ unsigned int fnic_log_level;
module_param(fnic_log_level, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels");
+unsigned int fnic_fdmi_support = 1;
+module_param(fnic_fdmi_support, int, 0644);
+MODULE_PARM_DESC(fnic_fdmi_support, "FDMI support");
+
+static unsigned int fnic_tgt_id_binding = 1;
+module_param(fnic_tgt_id_binding, uint, 0644);
+MODULE_PARM_DESC(fnic_tgt_id_binding,
+ "Target ID binding (0 for none. 1 for binding by WWPN (default))");
unsigned int io_completions = FNIC_DFLT_IO_COMPLETIONS;
module_param(io_completions, int, S_IRUGO|S_IWUSR);
@@ -79,15 +92,15 @@ static unsigned int fnic_max_qdepth = FNIC_DFLT_QUEUE_DEPTH;
module_param(fnic_max_qdepth, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(fnic_max_qdepth, "Queue depth to report for each LUN");
-static struct libfc_function_template fnic_transport_template = {
- .frame_send = fnic_send,
- .lport_set_port_id = fnic_set_port_id,
- .fcp_abort_io = fnic_empty_scsi_cleanup,
- .fcp_cleanup = fnic_empty_scsi_cleanup,
- .exch_mgr_reset = fnic_exch_mgr_reset
-};
+unsigned int pc_rscn_handling_feature_flag = PC_RSCN_HANDLING_FEATURE_ON;
+module_param(pc_rscn_handling_feature_flag, uint, 0644);
+MODULE_PARM_DESC(pc_rscn_handling_feature_flag,
+ "PCRSCN handling (0 for none. 1 to handle PCRSCN (default))");
-static int fnic_slave_alloc(struct scsi_device *sdev)
+struct workqueue_struct *reset_fnic_work_queue;
+struct workqueue_struct *fnic_fip_queue;
+
+static int fnic_sdev_init(struct scsi_device *sdev)
{
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
@@ -105,8 +118,8 @@ static const struct scsi_host_template fnic_host_template = {
.eh_timed_out = fc_eh_timed_out,
.eh_abort_handler = fnic_abort_cmd,
.eh_device_reset_handler = fnic_device_reset,
- .eh_host_reset_handler = fnic_host_reset,
- .slave_alloc = fnic_slave_alloc,
+ .eh_host_reset_handler = fnic_eh_host_reset_handler,
+ .sdev_init = fnic_sdev_init,
.change_queue_depth = scsi_change_queue_depth,
.this_id = -1,
.cmd_per_lun = 3,
@@ -146,7 +159,7 @@ static struct fc_function_template fnic_fc_functions = {
.get_host_speed = fnic_get_host_speed,
.show_host_speed = 1,
.show_host_port_type = 1,
- .get_host_port_state = fc_get_host_port_state,
+ .get_host_port_state = fnic_get_host_port_state,
.show_host_port_state = 1,
.show_host_symbolic_name = 1,
.show_rport_maxframe_size = 1,
@@ -157,54 +170,88 @@ static struct fc_function_template fnic_fc_functions = {
.show_starget_port_id = 1,
.show_rport_dev_loss_tmo = 1,
.set_rport_dev_loss_tmo = fnic_set_rport_dev_loss_tmo,
- .issue_fc_host_lip = fnic_reset,
+ .issue_fc_host_lip = fnic_issue_fc_host_lip,
.get_fc_host_stats = fnic_get_stats,
.reset_fc_host_stats = fnic_reset_host_stats,
- .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv),
+ .dd_fcrport_size = sizeof(struct rport_dd_data_s),
.terminate_rport_io = fnic_terminate_rport_io,
- .bsg_request = fc_lport_bsg_request,
+ .bsg_request = NULL,
};
static void fnic_get_host_speed(struct Scsi_Host *shost)
{
- struct fc_lport *lp = shost_priv(shost);
- struct fnic *fnic = lport_priv(lp);
+ struct fnic *fnic = *((struct fnic **) shost_priv(shost));
u32 port_speed = vnic_dev_port_speed(fnic->vdev);
+ struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+
+ FNIC_MAIN_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "port_speed: %d Mbps", port_speed);
+ atomic64_set(&fnic_stats->misc_stats.port_speed_in_mbps, port_speed);
/* Add in other values as they get defined in fw */
switch (port_speed) {
+ case DCEM_PORTSPEED_1G:
+ fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
+ break;
+ case DCEM_PORTSPEED_2G:
+ fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
+ break;
+ case DCEM_PORTSPEED_4G:
+ fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
+ break;
+ case DCEM_PORTSPEED_8G:
+ fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
+ break;
case DCEM_PORTSPEED_10G:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
break;
+ case DCEM_PORTSPEED_16G:
+ fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
+ break;
case DCEM_PORTSPEED_20G:
fc_host_speed(shost) = FC_PORTSPEED_20GBIT;
break;
case DCEM_PORTSPEED_25G:
fc_host_speed(shost) = FC_PORTSPEED_25GBIT;
break;
+ case DCEM_PORTSPEED_32G:
+ fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
+ break;
case DCEM_PORTSPEED_40G:
case DCEM_PORTSPEED_4x10G:
fc_host_speed(shost) = FC_PORTSPEED_40GBIT;
break;
+ case DCEM_PORTSPEED_50G:
+ fc_host_speed(shost) = FC_PORTSPEED_50GBIT;
+ break;
+ case DCEM_PORTSPEED_64G:
+ fc_host_speed(shost) = FC_PORTSPEED_64GBIT;
+ break;
case DCEM_PORTSPEED_100G:
fc_host_speed(shost) = FC_PORTSPEED_100GBIT;
break;
+ case DCEM_PORTSPEED_128G:
+ fc_host_speed(shost) = FC_PORTSPEED_128GBIT;
+ break;
default:
+ FNIC_MAIN_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Unknown FC speed: %d Mbps", port_speed);
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
break;
}
}
+/* Placeholder function */
static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host)
{
int ret;
- struct fc_lport *lp = shost_priv(host);
- struct fnic *fnic = lport_priv(lp);
- struct fc_host_statistics *stats = &lp->host_stats;
+ struct fnic *fnic = *((struct fnic **) shost_priv(host));
+ struct fc_host_statistics *stats = &fnic->fnic_stats.host_stats;
struct vnic_stats *vs;
unsigned long flags;
- if (time_before(jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT))
+ if (time_before
+ (jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT))
return stats;
fnic->stats_time = jiffies;
@@ -213,24 +260,22 @@ static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host)
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
if (ret) {
- FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fnic: Get vnic stats failed"
- " 0x%x", ret);
+ FNIC_MAIN_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "fnic: Get vnic stats failed: 0x%x", ret);
return stats;
}
vs = fnic->stats;
stats->tx_frames = vs->tx.tx_unicast_frames_ok;
- stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4;
+ stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4;
stats->rx_frames = vs->rx.rx_unicast_frames_ok;
- stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4;
+ stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4;
stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors;
stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop;
stats->invalid_crc_count = vs->rx.rx_crc_errors;
stats->seconds_since_last_reset =
- (jiffies - fnic->stats_reset_time) / HZ;
+ (jiffies - fnic->stats_reset_time) / HZ;
stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000);
stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000);
-
return stats;
}
@@ -311,8 +356,7 @@ void fnic_dump_fchost_stats(struct Scsi_Host *host,
static void fnic_reset_host_stats(struct Scsi_Host *host)
{
int ret;
- struct fc_lport *lp = shost_priv(host);
- struct fnic *fnic = lport_priv(lp);
+ struct fnic *fnic = *((struct fnic **) shost_priv(host));
struct fc_host_statistics *stats;
unsigned long flags;
@@ -325,7 +369,7 @@ static void fnic_reset_host_stats(struct Scsi_Host *host)
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
if (ret) {
- FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_MAIN_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"fnic: Reset vnic stats failed"
" 0x%x", ret);
return;
@@ -344,25 +388,19 @@ void fnic_log_q_error(struct fnic *fnic)
for (i = 0; i < fnic->raw_wq_count; i++) {
error_status = ioread32(&fnic->wq[i].ctrl->error_status);
if (error_status)
- shost_printk(KERN_ERR, fnic->lport->host,
- "WQ[%d] error_status"
- " %d\n", i, error_status);
+ dev_err(&fnic->pdev->dev, "WQ[%d] error_status %d\n", i, error_status);
}
for (i = 0; i < fnic->rq_count; i++) {
error_status = ioread32(&fnic->rq[i].ctrl->error_status);
if (error_status)
- shost_printk(KERN_ERR, fnic->lport->host,
- "RQ[%d] error_status"
- " %d\n", i, error_status);
+ dev_err(&fnic->pdev->dev, "RQ[%d] error_status %d\n", i, error_status);
}
for (i = 0; i < fnic->wq_copy_count; i++) {
error_status = ioread32(&fnic->hw_copy_wq[i].ctrl->error_status);
if (error_status)
- shost_printk(KERN_ERR, fnic->lport->host,
- "CWQ[%d] error_status"
- " %d\n", i, error_status);
+ dev_err(&fnic->pdev->dev, "CWQ[%d] error_status %d\n", i, error_status);
}
}
@@ -396,8 +434,7 @@ static int fnic_notify_set(struct fnic *fnic)
err = vnic_dev_notify_set(fnic->vdev, fnic->wq_copy_count + fnic->copy_wq_base);
break;
default:
- shost_printk(KERN_ERR, fnic->lport->host,
- "Interrupt mode should be set up"
+ dev_err(&fnic->pdev->dev, "Interrupt mode should be set up"
" before devcmd notify set %d\n",
vnic_dev_get_intr_mode(fnic->vdev));
err = -1;
@@ -416,13 +453,6 @@ static void fnic_notify_timer(struct timer_list *t)
round_jiffies(jiffies + FNIC_NOTIFY_TIMER_PERIOD));
}
-static void fnic_fip_notify_timer(struct timer_list *t)
-{
- struct fnic *fnic = from_timer(fnic, t, fip_timer);
-
- fnic_handle_fip_timer(fnic);
-}
-
static void fnic_notify_timer_start(struct fnic *fnic)
{
switch (vnic_dev_get_intr_mode(fnic->vdev)) {
@@ -522,6 +552,8 @@ static int fnic_cleanup(struct fnic *fnic)
vnic_intr_clean(&fnic->intr[i]);
mempool_destroy(fnic->io_req_pool);
+ mempool_destroy(fnic->frame_pool);
+ mempool_destroy(fnic->frame_elem_pool);
for (i = 0; i < FNIC_SGL_NUM_CACHES; i++)
mempool_destroy(fnic->io_sgl_pool[i]);
@@ -534,25 +566,36 @@ static void fnic_iounmap(struct fnic *fnic)
iounmap(fnic->bar0.vaddr);
}
-/**
- * fnic_get_mac() - get assigned data MAC address for FIP code.
- * @lport: local port.
- */
-static u8 *fnic_get_mac(struct fc_lport *lport)
+static void fnic_set_vlan(struct fnic *fnic, u16 vlan_id)
{
- struct fnic *fnic = lport_priv(lport);
+ vnic_dev_set_default_vlan(fnic->vdev, vlan_id);
+}
- return fnic->data_src_addr;
+static void fnic_scsi_init(struct fnic *fnic)
+{
+ struct Scsi_Host *host = fnic->host;
+
+ snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME,
+ host->host_no);
+
+ host->transportt = fnic_fc_transport;
}
-static void fnic_set_vlan(struct fnic *fnic, u16 vlan_id)
+static void fnic_free_ioreq_tables_mq(struct fnic *fnic)
{
- vnic_dev_set_default_vlan(fnic->vdev, vlan_id);
+ int hwq;
+
+ for (hwq = 0; hwq < fnic->wq_copy_count; hwq++)
+ kfree(fnic->sw_copy_wq[hwq].io_req_table);
}
static int fnic_scsi_drv_init(struct fnic *fnic)
{
- struct Scsi_Host *host = fnic->lport->host;
+ struct Scsi_Host *host = fnic->host;
+ int err;
+ struct pci_dev *pdev = fnic->pdev;
+ struct fnic_iport_s *iport = &fnic->iport;
+ int hwq;
/* Configure maximum outstanding IO reqs*/
if (fnic->config.io_throttle_count != FNIC_UCSM_DFLT_THROTTLE_CNT_BLD)
@@ -563,103 +606,160 @@ static int fnic_scsi_drv_init(struct fnic *fnic)
fnic->fnic_max_tag_id = host->can_queue;
host->max_lun = fnic->config.luns_per_tgt;
host->max_id = FNIC_MAX_FCP_TARGET;
- host->max_cmd_len = FCOE_MAX_CMD_LEN;
+ host->max_cmd_len = FNIC_FCOE_MAX_CMD_LEN;
host->nr_hw_queues = fnic->wq_copy_count;
- shost_printk(KERN_INFO, host,
- "fnic: can_queue: %d max_lun: %llu",
+ dev_info(&fnic->pdev->dev, "fnic: can_queue: %d max_lun: %llu",
host->can_queue, host->max_lun);
- shost_printk(KERN_INFO, host,
- "fnic: max_id: %d max_cmd_len: %d nr_hw_queues: %d",
+ dev_info(&fnic->pdev->dev, "fnic: max_id: %d max_cmd_len: %d nr_hw_queues: %d",
host->max_id, host->max_cmd_len, host->nr_hw_queues);
+ for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) {
+ fnic->sw_copy_wq[hwq].ioreq_table_size = fnic->fnic_max_tag_id;
+ fnic->sw_copy_wq[hwq].io_req_table =
+ kzalloc((fnic->sw_copy_wq[hwq].ioreq_table_size + 1) *
+ sizeof(struct fnic_io_req *), GFP_KERNEL);
+
+ if (!fnic->sw_copy_wq[hwq].io_req_table) {
+ fnic_free_ioreq_tables_mq(fnic);
+ return -ENOMEM;
+ }
+ }
+
+ dev_info(&fnic->pdev->dev, "fnic copy wqs: %d, Q0 ioreq table size: %d\n",
+ fnic->wq_copy_count, fnic->sw_copy_wq[0].ioreq_table_size);
+
+ fnic_scsi_init(fnic);
+
+ err = scsi_add_host(fnic->host, &pdev->dev);
+ if (err) {
+ dev_err(&fnic->pdev->dev, "fnic: scsi add host failed: aborting\n");
+ return err;
+ }
+ fc_host_maxframe_size(fnic->host) = iport->max_payload_size;
+ fc_host_dev_loss_tmo(fnic->host) =
+ fnic->config.port_down_timeout / 1000;
+ sprintf(fc_host_symbolic_name(fnic->host),
+ DRV_NAME " v" DRV_VERSION " over %s", fnic->name);
+ fc_host_port_type(fnic->host) = FC_PORTTYPE_NPORT;
+ fc_host_node_name(fnic->host) = iport->wwnn;
+ fc_host_port_name(fnic->host) = iport->wwpn;
+ fc_host_supported_classes(fnic->host) = FC_COS_CLASS3;
+ memset(fc_host_supported_fc4s(fnic->host), 0,
+ sizeof(fc_host_supported_fc4s(fnic->host)));
+ fc_host_supported_fc4s(fnic->host)[2] = 1;
+ fc_host_supported_fc4s(fnic->host)[7] = 1;
+ fc_host_supported_speeds(fnic->host) = 0;
+ fc_host_supported_speeds(fnic->host) |= FC_PORTSPEED_8GBIT;
+
+ dev_info(&fnic->pdev->dev, "shost_data: 0x%p\n", fnic->host->shost_data);
+ if (fnic->host->shost_data != NULL) {
+ if (fnic_tgt_id_binding == 0) {
+ dev_info(&fnic->pdev->dev, "Setting target binding to NONE\n");
+ fc_host_tgtid_bind_type(fnic->host) = FC_TGTID_BIND_NONE;
+ } else {
+ dev_info(&fnic->pdev->dev, "Setting target binding to WWPN\n");
+ fc_host_tgtid_bind_type(fnic->host) = FC_TGTID_BIND_BY_WWPN;
+ }
+ }
+
+ fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache);
+ if (!fnic->io_req_pool) {
+ scsi_remove_host(fnic->host);
+ return -ENOMEM;
+ }
+
return 0;
}
void fnic_mq_map_queues_cpus(struct Scsi_Host *host)
{
- struct fc_lport *lp = shost_priv(host);
- struct fnic *fnic = lport_priv(lp);
+ struct fnic *fnic = *((struct fnic **) shost_priv(host));
struct pci_dev *l_pdev = fnic->pdev;
int intr_mode = fnic->config.intr_mode;
struct blk_mq_queue_map *qmap = &host->tag_set.map[HCTX_TYPE_DEFAULT];
if (intr_mode == VNIC_DEV_INTR_MODE_MSI || intr_mode == VNIC_DEV_INTR_MODE_INTX) {
- FNIC_MAIN_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_MAIN_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"intr_mode is not msix\n");
return;
}
- FNIC_MAIN_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_MAIN_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"qmap->nr_queues: %d\n", qmap->nr_queues);
if (l_pdev == NULL) {
- FNIC_MAIN_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_MAIN_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"l_pdev is null\n");
return;
}
- blk_mq_pci_map_queues(qmap, l_pdev, FNIC_PCI_OFFSET);
+ blk_mq_map_hw_queues(qmap, &l_pdev->dev, FNIC_PCI_OFFSET);
}
static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- struct Scsi_Host *host;
- struct fc_lport *lp;
+ struct Scsi_Host *host = NULL;
struct fnic *fnic;
mempool_t *pool;
+ struct fnic_iport_s *iport;
int err = 0;
int fnic_id = 0;
int i;
unsigned long flags;
- int hwq;
+ char *desc, *subsys_desc;
+ int len;
/*
- * Allocate SCSI Host and set up association between host,
- * local port, and fnic
+ * Allocate fnic
*/
- lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic));
- if (!lp) {
- printk(KERN_ERR PFX "Unable to alloc libfc local port\n");
+ fnic = kzalloc(sizeof(struct fnic), GFP_KERNEL);
+ if (!fnic) {
err = -ENOMEM;
- goto err_out;
+ goto err_out_fnic_alloc;
}
- host = lp->host;
- fnic = lport_priv(lp);
+ iport = &fnic->iport;
fnic_id = ida_alloc(&fnic_ida, GFP_KERNEL);
if (fnic_id < 0) {
- pr_err("Unable to alloc fnic ID\n");
+ dev_err(&pdev->dev, "Unable to alloc fnic ID\n");
err = fnic_id;
goto err_out_ida_alloc;
}
- fnic->lport = lp;
- fnic->ctlr.lp = lp;
- fnic->link_events = 0;
- fnic->pdev = pdev;
- snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME,
- host->host_no);
-
- host->transportt = fnic_fc_transport;
+ fnic->pdev = pdev;
fnic->fnic_num = fnic_id;
- fnic_stats_debugfs_init(fnic);
+
+ /* Find model name from PCIe subsys ID */
+ if (fnic_get_desc_by_devid(pdev, &desc, &subsys_desc) == 0) {
+ dev_info(&fnic->pdev->dev, "Model: %s\n", subsys_desc);
+
+ /* Update FDMI model */
+ fnic->subsys_desc_len = strlen(subsys_desc);
+ len = ARRAY_SIZE(fnic->subsys_desc);
+ if (fnic->subsys_desc_len > len)
+ fnic->subsys_desc_len = len;
+ memcpy(fnic->subsys_desc, subsys_desc, fnic->subsys_desc_len);
+ dev_info(&fnic->pdev->dev, "FDMI Model: %s\n", fnic->subsys_desc);
+ } else {
+ fnic->subsys_desc_len = 0;
+ dev_info(&fnic->pdev->dev, "Model: %s subsys_id: 0x%04x\n", "Unknown",
+ pdev->subsystem_device);
+ }
err = pci_enable_device(pdev);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Cannot enable PCI device, aborting.\n");
- goto err_out_free_hba;
+ dev_err(&fnic->pdev->dev, "Cannot enable PCI device, aborting.\n");
+ goto err_out_pci_enable_device;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Cannot enable PCI resources, aborting\n");
- goto err_out_disable_device;
+ dev_err(&fnic->pdev->dev, "Cannot enable PCI resources, aborting\n");
+ goto err_out_pci_request_regions;
}
pci_set_master(pdev);
@@ -672,19 +772,17 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err) {
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "No usable DMA configuration "
+ dev_err(&fnic->pdev->dev, "No usable DMA configuration "
"aborting\n");
- goto err_out_release_regions;
+ goto err_out_set_dma_mask;
}
}
/* Map vNIC resources from BAR0 */
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "BAR0 not memory-map'able, aborting.\n");
+ dev_err(&fnic->pdev->dev, "BAR0 not memory-map'able, aborting.\n");
err = -ENODEV;
- goto err_out_release_regions;
+ goto err_out_map_bar;
}
fnic->bar0.vaddr = pci_iomap(pdev, 0, 0);
@@ -692,61 +790,79 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
fnic->bar0.len = pci_resource_len(pdev, 0);
if (!fnic->bar0.vaddr) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Cannot memory-map BAR0 res hdr, "
+ dev_err(&fnic->pdev->dev, "Cannot memory-map BAR0 res hdr, "
"aborting.\n");
err = -ENODEV;
- goto err_out_release_regions;
+ goto err_out_fnic_map_bar;
}
fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0);
if (!fnic->vdev) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "vNIC registration failed, "
+ dev_err(&fnic->pdev->dev, "vNIC registration failed, "
"aborting.\n");
err = -ENODEV;
- goto err_out_iounmap;
+ goto err_out_dev_register;
}
err = vnic_dev_cmd_init(fnic->vdev);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "vnic_dev_cmd_init() returns %d, aborting\n",
+ dev_err(&fnic->pdev->dev, "vnic_dev_cmd_init() returns %d, aborting\n",
err);
- goto err_out_vnic_unregister;
+ goto err_out_dev_cmd_init;
}
err = fnic_dev_wait(fnic->vdev, vnic_dev_open,
vnic_dev_open_done, CMD_OPENF_RQ_ENABLE_THEN_POST);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "vNIC dev open failed, aborting.\n");
- goto err_out_dev_cmd_deinit;
+ dev_err(&fnic->pdev->dev, "vNIC dev open failed, aborting.\n");
+ goto err_out_dev_open;
}
err = vnic_dev_init(fnic->vdev, 0);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "vNIC dev init failed, aborting.\n");
- goto err_out_dev_close;
+ dev_err(&fnic->pdev->dev, "vNIC dev init failed, aborting.\n");
+ goto err_out_dev_init;
}
- err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr);
+ err = vnic_dev_mac_addr(fnic->vdev, iport->hwmac);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "vNIC get MAC addr failed \n");
- goto err_out_dev_close;
+ dev_err(&fnic->pdev->dev, "vNIC get MAC addr failed\n");
+ goto err_out_dev_mac_addr;
}
/* set data_src for point-to-point mode and to keep it non-zero */
- memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN);
+ memcpy(fnic->data_src_addr, iport->hwmac, ETH_ALEN);
/* Get vNIC configuration */
err = fnic_get_vnic_config(fnic);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Get vNIC configuration failed, "
+ dev_err(&fnic->pdev->dev, "Get vNIC configuration failed, "
"aborting.\n");
- goto err_out_dev_close;
+ goto err_out_fnic_get_config;
+ }
+
+ switch (fnic->config.flags & 0xff0) {
+ case VFCF_FC_INITIATOR:
+ {
+ host =
+ scsi_host_alloc(&fnic_host_template,
+ sizeof(struct fnic *));
+ if (!host) {
+ dev_err(&fnic->pdev->dev, "Unable to allocate scsi host\n");
+ err = -ENOMEM;
+ goto err_out_scsi_host_alloc;
+ }
+ *((struct fnic **) shost_priv(host)) = fnic;
+
+ fnic->host = host;
+ fnic->role = FNIC_ROLE_FCP_INITIATOR;
+ dev_info(&fnic->pdev->dev, "fnic: %d is scsi initiator\n",
+ fnic->fnic_num);
+ }
+ break;
+ default:
+ dev_info(&fnic->pdev->dev, "fnic: %d has no role defined\n", fnic->fnic_num);
+ err = -EINVAL;
+ goto err_out_fnic_role;
}
/* Setup PCI resources */
@@ -756,29 +872,18 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err = fnic_set_intr_mode(fnic);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Failed to set intr mode, "
+ dev_err(&fnic->pdev->dev, "Failed to set intr mode, "
"aborting.\n");
- goto err_out_dev_close;
+ goto err_out_fnic_set_intr_mode;
}
err = fnic_alloc_vnic_resources(fnic);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Failed to alloc vNIC resources, "
+ dev_err(&fnic->pdev->dev, "Failed to alloc vNIC resources, "
"aborting.\n");
- goto err_out_clear_intr;
- }
-
- fnic_scsi_drv_init(fnic);
-
- for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) {
- fnic->sw_copy_wq[hwq].ioreq_table_size = fnic->fnic_max_tag_id;
- fnic->sw_copy_wq[hwq].io_req_table =
- kzalloc((fnic->sw_copy_wq[hwq].ioreq_table_size + 1) *
- sizeof(struct fnic_io_req *), GFP_KERNEL);
+ goto err_out_fnic_alloc_vnic_res;
}
- shost_printk(KERN_INFO, fnic->lport->host, "fnic copy wqs: %d, Q0 ioreq table size: %d\n",
+ dev_info(&fnic->pdev->dev, "fnic copy wqs: %d, Q0 ioreq table size: %d\n",
fnic->wq_copy_count, fnic->sw_copy_wq[0].ioreq_table_size);
/* initialize all fnic locks */
@@ -794,50 +899,56 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
fnic->fw_ack_index[i] = -1;
}
- err = -ENOMEM;
- fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache);
- if (!fnic->io_req_pool)
- goto err_out_free_resources;
-
pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
- if (!pool)
- goto err_out_free_ioreq_pool;
+ if (!pool) {
+ err = -ENOMEM;
+ goto err_out_free_resources;
+ }
fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool;
pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
- if (!pool)
+ if (!pool) {
+ err = -ENOMEM;
goto err_out_free_dflt_pool;
+ }
fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool;
+ pool = mempool_create_slab_pool(FDLS_MIN_FRAMES, fdls_frame_cache);
+ if (!pool) {
+ err = -ENOMEM;
+ goto err_out_fdls_frame_pool;
+ }
+ fnic->frame_pool = pool;
+
+ pool = mempool_create_slab_pool(FDLS_MIN_FRAME_ELEM,
+ fdls_frame_elem_cache);
+ if (!pool) {
+ err = -ENOMEM;
+ goto err_out_fdls_frame_elem_pool;
+ }
+ fnic->frame_elem_pool = pool;
+
/* setup vlan config, hw inserts vlan header */
fnic->vlan_hw_insert = 1;
fnic->vlan_id = 0;
- /* Initialize the FIP fcoe_ctrl struct */
- fnic->ctlr.send = fnic_eth_send;
- fnic->ctlr.update_mac = fnic_update_mac;
- fnic->ctlr.get_src_addr = fnic_get_mac;
if (fnic->config.flags & VFCF_FIP_CAPABLE) {
- shost_printk(KERN_INFO, fnic->lport->host,
- "firmware supports FIP\n");
+ dev_info(&fnic->pdev->dev, "firmware supports FIP\n");
/* enable directed and multicast */
vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0);
vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS);
- vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr);
- fnic->set_vlan = fnic_set_vlan;
- fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO);
- timer_setup(&fnic->fip_timer, fnic_fip_notify_timer, 0);
+ vnic_dev_add_addr(fnic->vdev, iport->hwmac);
spin_lock_init(&fnic->vlans_lock);
INIT_WORK(&fnic->fip_frame_work, fnic_handle_fip_frame);
- INIT_WORK(&fnic->event_work, fnic_handle_event);
- skb_queue_head_init(&fnic->fip_frame_queue);
- INIT_LIST_HEAD(&fnic->evlist);
- INIT_LIST_HEAD(&fnic->vlans);
+ INIT_LIST_HEAD(&fnic->fip_frame_queue);
+ INIT_LIST_HEAD(&fnic->vlan_list);
+ timer_setup(&fnic->retry_fip_timer, fnic_handle_fip_timer, 0);
+ timer_setup(&fnic->fcs_ka_timer, fnic_handle_fcs_ka_timer, 0);
+ timer_setup(&fnic->enode_ka_timer, fnic_handle_enode_ka_timer, 0);
+ timer_setup(&fnic->vn_ka_timer, fnic_handle_vn_ka_timer, 0);
+ fnic->set_vlan = fnic_set_vlan;
} else {
- shost_printk(KERN_INFO, fnic->lport->host,
- "firmware uses non-FIP mode\n");
- fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP);
- fnic->ctlr.state = FIP_ST_NON_FIP;
+ dev_info(&fnic->pdev->dev, "firmware uses non-FIP mode\n");
}
fnic->state = FNIC_IN_FC_MODE;
@@ -850,9 +961,8 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* Setup notification buffer area */
err = fnic_notify_set(fnic);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Failed to alloc notify buffer, aborting.\n");
- goto err_out_free_max_pool;
+ dev_err(&fnic->pdev->dev, "Failed to alloc notify buffer, aborting.\n");
+ goto err_out_fnic_notify_set;
}
/* Setup notify timer when using MSI interrupts */
@@ -863,13 +973,62 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
for (i = 0; i < fnic->rq_count; i++) {
err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "fnic_alloc_rq_frame can't alloc "
+ dev_err(&fnic->pdev->dev, "fnic_alloc_rq_frame can't alloc "
"frame\n");
- goto err_out_rq_buf;
+ goto err_out_alloc_rq_buf;
}
}
+ init_completion(&fnic->reset_completion_wait);
+
+ /* Start local port initialization */
+ iport->max_flogi_retries = fnic->config.flogi_retries;
+ iport->max_plogi_retries = fnic->config.plogi_retries;
+ iport->plogi_timeout = fnic->config.plogi_timeout;
+ iport->service_params =
+ (FNIC_FCP_SP_INITIATOR | FNIC_FCP_SP_RD_XRDY_DIS |
+ FNIC_FCP_SP_CONF_CMPL);
+ if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR)
+ iport->service_params |= FNIC_FCP_SP_RETRY;
+
+ iport->boot_time = jiffies;
+ iport->e_d_tov = fnic->config.ed_tov;
+ iport->r_a_tov = fnic->config.ra_tov;
+ iport->link_supported_speeds = FNIC_PORTSPEED_10GBIT;
+ iport->wwpn = fnic->config.port_wwn;
+ iport->wwnn = fnic->config.node_wwn;
+
+ iport->max_payload_size = fnic->config.maxdatafieldsize;
+
+ if ((iport->max_payload_size < FNIC_MIN_DATA_FIELD_SIZE) ||
+ (iport->max_payload_size > FNIC_FC_MAX_PAYLOAD_LEN) ||
+ ((iport->max_payload_size % 4) != 0)) {
+ iport->max_payload_size = FNIC_FC_MAX_PAYLOAD_LEN;
+ }
+
+ iport->flags |= FNIC_FIRST_LINK_UP;
+
+ timer_setup(&(iport->fabric.retry_timer), fdls_fabric_timer_callback,
+ 0);
+
+ fnic->stats_reset_time = jiffies;
+
+ INIT_WORK(&fnic->link_work, fnic_handle_link);
+ INIT_WORK(&fnic->frame_work, fnic_handle_frame);
+ INIT_WORK(&fnic->tport_work, fnic_tport_event_handler);
+ INIT_WORK(&fnic->flush_work, fnic_flush_tx);
+
+ INIT_LIST_HEAD(&fnic->frame_queue);
+ INIT_LIST_HEAD(&fnic->tx_queue);
+ INIT_LIST_HEAD(&fnic->tport_event_list);
+
+ INIT_DELAYED_WORK(&iport->oxid_pool.schedule_oxid_free_retry,
+ fdls_schedule_oxid_free_retry_work);
+
+ /* Initialize the oxid reclaim list and work struct */
+ INIT_LIST_HEAD(&iport->oxid_pool.oxid_reclaim_list);
+ INIT_DELAYED_WORK(&iport->oxid_pool.oxid_reclaim_work, fdls_reclaim_oxid_handler);
+
/* Enable all queues */
for (i = 0; i < fnic->raw_wq_count; i++)
vnic_wq_enable(&fnic->wq[i]);
@@ -880,180 +1039,131 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
for (i = 0; i < fnic->wq_copy_count; i++)
vnic_wq_copy_enable(&fnic->hw_copy_wq[i]);
- err = fnic_request_intr(fnic);
- if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Unable to request irq.\n");
- goto err_out_request_intr;
- }
+ vnic_dev_enable(fnic->vdev);
- /*
- * Initialization done with PCI system, hardware, firmware.
- * Add host to SCSI
- */
- err = scsi_add_host(lp->host, &pdev->dev);
+ err = fnic_request_intr(fnic);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "fnic: scsi_add_host failed...exiting\n");
- goto err_out_scsi_add_host;
+ dev_err(&fnic->pdev->dev, "Unable to request irq.\n");
+ goto err_out_fnic_request_intr;
}
+ fnic_notify_timer_start(fnic);
- /* Start local port initiatialization */
-
- lp->link_up = 0;
-
- lp->max_retry_count = fnic->config.flogi_retries;
- lp->max_rport_retry_count = fnic->config.plogi_retries;
- lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
- FCP_SPPF_CONF_COMPL);
- if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR)
- lp->service_params |= FCP_SPPF_RETRY;
-
- lp->boot_time = jiffies;
- lp->e_d_tov = fnic->config.ed_tov;
- lp->r_a_tov = fnic->config.ra_tov;
- lp->link_supported_speeds = FC_PORTSPEED_10GBIT;
- fc_set_wwnn(lp, fnic->config.node_wwn);
- fc_set_wwpn(lp, fnic->config.port_wwn);
-
- fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0);
-
- if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START,
- FCPIO_HOST_EXCH_RANGE_END, NULL)) {
- err = -ENOMEM;
- goto err_out_fc_exch_mgr_alloc;
- }
-
- fc_lport_init_stats(lp);
- fnic->stats_reset_time = jiffies;
+ fnic_fdls_init(fnic, (fnic->config.flags & VFCF_FIP_CAPABLE));
- fc_lport_config(lp);
+ err = fnic_scsi_drv_init(fnic);
+ if (err)
+ goto err_out_scsi_drv_init;
- if (fc_set_mfs(lp, fnic->config.maxdatafieldsize +
- sizeof(struct fc_frame_header))) {
- err = -EINVAL;
- goto err_out_free_exch_mgr;
+ err = fnic_stats_debugfs_init(fnic);
+ if (err) {
+ dev_err(&fnic->pdev->dev, "Failed to initialize debugfs for stats\n");
+ goto err_out_free_stats_debugfs;
}
- fc_host_maxframe_size(lp->host) = lp->mfs;
- fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000;
- sprintf(fc_host_symbolic_name(lp->host),
- DRV_NAME " v" DRV_VERSION " over %s", fnic->name);
+ for (i = 0; i < fnic->intr_count; i++)
+ vnic_intr_unmask(&fnic->intr[i]);
spin_lock_irqsave(&fnic_list_lock, flags);
list_add_tail(&fnic->list, &fnic_list);
spin_unlock_irqrestore(&fnic_list_lock, flags);
- INIT_WORK(&fnic->link_work, fnic_handle_link);
- INIT_WORK(&fnic->frame_work, fnic_handle_frame);
- INIT_WORK(&fnic->flush_work, fnic_flush_tx);
- skb_queue_head_init(&fnic->frame_queue);
- skb_queue_head_init(&fnic->tx_queue);
-
- fc_fabric_login(lp);
-
- vnic_dev_enable(fnic->vdev);
-
- for (i = 0; i < fnic->intr_count; i++)
- vnic_intr_unmask(&fnic->intr[i]);
-
- fnic_notify_timer_start(fnic);
-
return 0;
-err_out_free_exch_mgr:
- fc_exch_mgr_free(lp);
-err_out_fc_exch_mgr_alloc:
- fc_remove_host(lp->host);
- scsi_remove_host(lp->host);
-err_out_scsi_add_host:
+err_out_free_stats_debugfs:
+ fnic_stats_debugfs_remove(fnic);
+ fnic_free_ioreq_tables_mq(fnic);
+ scsi_remove_host(fnic->host);
+err_out_scsi_drv_init:
fnic_free_intr(fnic);
-err_out_request_intr:
- for (i = 0; i < fnic->rq_count; i++)
+err_out_fnic_request_intr:
+err_out_alloc_rq_buf:
+ for (i = 0; i < fnic->rq_count; i++) {
+ if (ioread32(&fnic->rq[i].ctrl->enable))
+ vnic_rq_disable(&fnic->rq[i]);
vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf);
-err_out_rq_buf:
+ }
vnic_dev_notify_unset(fnic->vdev);
-err_out_free_max_pool:
+err_out_fnic_notify_set:
+ mempool_destroy(fnic->frame_elem_pool);
+err_out_fdls_frame_elem_pool:
+ mempool_destroy(fnic->frame_pool);
+err_out_fdls_frame_pool:
mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]);
err_out_free_dflt_pool:
mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]);
-err_out_free_ioreq_pool:
- mempool_destroy(fnic->io_req_pool);
err_out_free_resources:
- for (hwq = 0; hwq < fnic->wq_copy_count; hwq++)
- kfree(fnic->sw_copy_wq[hwq].io_req_table);
fnic_free_vnic_resources(fnic);
-err_out_clear_intr:
+err_out_fnic_alloc_vnic_res:
fnic_clear_intr_mode(fnic);
-err_out_dev_close:
+err_out_fnic_set_intr_mode:
+ scsi_host_put(fnic->host);
+err_out_fnic_role:
+err_out_scsi_host_alloc:
+err_out_fnic_get_config:
+err_out_dev_mac_addr:
+err_out_dev_init:
vnic_dev_close(fnic->vdev);
-err_out_dev_cmd_deinit:
-err_out_vnic_unregister:
+err_out_dev_open:
+err_out_dev_cmd_init:
vnic_dev_unregister(fnic->vdev);
-err_out_iounmap:
+err_out_dev_register:
fnic_iounmap(fnic);
-err_out_release_regions:
+err_out_fnic_map_bar:
+err_out_map_bar:
+err_out_set_dma_mask:
pci_release_regions(pdev);
-err_out_disable_device:
+err_out_pci_request_regions:
pci_disable_device(pdev);
-err_out_free_hba:
- fnic_stats_debugfs_remove(fnic);
+err_out_pci_enable_device:
ida_free(&fnic_ida, fnic->fnic_num);
err_out_ida_alloc:
- scsi_host_put(lp->host);
-err_out:
+ kfree(fnic);
+err_out_fnic_alloc:
return err;
}
static void fnic_remove(struct pci_dev *pdev)
{
struct fnic *fnic = pci_get_drvdata(pdev);
- struct fc_lport *lp = fnic->lport;
unsigned long flags;
- int hwq;
/*
- * Mark state so that the workqueue thread stops forwarding
- * received frames and link events to the local port. ISR and
- * other threads that can queue work items will also stop
- * creating work items on the fnic workqueue
+ * Sometimes when probe() fails and do not exit with an error code,
+ * remove() gets called with 'drvdata' not set. Avoid a crash by
+ * adding a defensive check.
*/
+ if (!fnic)
+ return;
+
spin_lock_irqsave(&fnic->fnic_lock, flags);
fnic->stop_rx_link_events = 1;
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI)
- del_timer_sync(&fnic->notify_timer);
-
/*
* Flush the fnic event queue. After this call, there should
* be no event queued for this fnic device in the workqueue
*/
flush_workqueue(fnic_event_queue);
- skb_queue_purge(&fnic->frame_queue);
- skb_queue_purge(&fnic->tx_queue);
+
+ fnic_scsi_unload(fnic);
+
+ if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI)
+ timer_delete_sync(&fnic->notify_timer);
if (fnic->config.flags & VFCF_FIP_CAPABLE) {
- del_timer_sync(&fnic->fip_timer);
- skb_queue_purge(&fnic->fip_frame_queue);
+ timer_delete_sync(&fnic->retry_fip_timer);
+ timer_delete_sync(&fnic->fcs_ka_timer);
+ timer_delete_sync(&fnic->enode_ka_timer);
+ timer_delete_sync(&fnic->vn_ka_timer);
+
+ fnic_free_txq(&fnic->fip_frame_queue);
fnic_fcoe_reset_vlans(fnic);
- fnic_fcoe_evlist_free(fnic);
}
- /*
- * Log off the fabric. This stops all remote ports, dns port,
- * logs off the fabric. This flushes all rport, disc, lport work
- * before returning
- */
- fc_fabric_logoff(fnic->lport);
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- fnic->in_remove = 1;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ if ((fnic_fdmi_support == 1) && (fnic->iport.fabric.fdmi_pending > 0))
+ timer_delete_sync(&fnic->iport.fabric.fdmi_timer);
- fcoe_ctlr_destroy(&fnic->ctlr);
- fc_lport_destroy(lp);
fnic_stats_debugfs_remove(fnic);
/*
@@ -1063,18 +1173,13 @@ static void fnic_remove(struct pci_dev *pdev)
*/
fnic_cleanup(fnic);
- BUG_ON(!skb_queue_empty(&fnic->frame_queue));
- BUG_ON(!skb_queue_empty(&fnic->tx_queue));
-
spin_lock_irqsave(&fnic_list_lock, flags);
list_del(&fnic->list);
spin_unlock_irqrestore(&fnic_list_lock, flags);
- fc_remove_host(fnic->lport->host);
- scsi_remove_host(fnic->lport->host);
- for (hwq = 0; hwq < fnic->wq_copy_count; hwq++)
- kfree(fnic->sw_copy_wq[hwq].io_req_table);
- fc_exch_mgr_free(fnic->lport);
+ fnic_free_txq(&fnic->frame_queue);
+ fnic_free_txq(&fnic->tx_queue);
+
vnic_dev_notify_unset(fnic->vdev);
fnic_free_intr(fnic);
fnic_free_vnic_resources(fnic);
@@ -1084,8 +1189,11 @@ static void fnic_remove(struct pci_dev *pdev)
fnic_iounmap(fnic);
pci_release_regions(pdev);
pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
ida_free(&fnic_ida, fnic->fnic_num);
- scsi_host_put(lp->host);
+ fnic_scsi_unload_cleanup(fnic);
+ scsi_host_put(fnic->host);
+ kfree(fnic);
}
static struct pci_driver fnic_driver = {
@@ -1161,6 +1269,24 @@ static int __init fnic_init_module(void)
goto err_create_fnic_ioreq_slab;
}
+ fdls_frame_cache = kmem_cache_create("fdls_frames",
+ FNIC_FCOE_FRAME_MAXSZ,
+ 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (!fdls_frame_cache) {
+ pr_err("fnic fdls frame cache create failed\n");
+ err = -ENOMEM;
+ goto err_create_fdls_frame_cache;
+ }
+
+ fdls_frame_elem_cache = kmem_cache_create("fdls_frame_elem",
+ sizeof(struct fnic_frame_list),
+ 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (!fdls_frame_elem_cache) {
+ pr_err("fnic fdls frame elem cache create failed\n");
+ err = -ENOMEM;
+ goto err_create_fdls_frame_cache_elem;
+ }
+
fnic_event_queue =
alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "fnic_event_wq");
if (!fnic_event_queue) {
@@ -1177,6 +1303,19 @@ static int __init fnic_init_module(void)
goto err_create_fip_workq;
}
+ if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON) {
+ reset_fnic_work_queue =
+ create_singlethread_workqueue("reset_fnic_work_queue");
+ if (!reset_fnic_work_queue) {
+ pr_err("reset fnic work queue create failed\n");
+ err = -ENOMEM;
+ goto err_create_reset_fnic_workq;
+ }
+ spin_lock_init(&reset_fnic_list_lock);
+ INIT_LIST_HEAD(&reset_fnic_list);
+ INIT_WORK(&reset_fnic_work, fnic_reset_work_handler);
+ }
+
fnic_fc_transport = fc_attach_transport(&fnic_fc_functions);
if (!fnic_fc_transport) {
printk(KERN_ERR PFX "fc_attach_transport error\n");
@@ -1197,8 +1336,15 @@ err_pci_register:
err_fc_transport:
destroy_workqueue(fnic_fip_queue);
err_create_fip_workq:
+ if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON)
+ destroy_workqueue(reset_fnic_work_queue);
+err_create_reset_fnic_workq:
destroy_workqueue(fnic_event_queue);
err_create_fnic_workq:
+ kmem_cache_destroy(fdls_frame_elem_cache);
+err_create_fdls_frame_cache_elem:
+ kmem_cache_destroy(fdls_frame_cache);
+err_create_fdls_frame_cache:
kmem_cache_destroy(fnic_io_req_cache);
err_create_fnic_ioreq_slab:
kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
@@ -1215,11 +1361,17 @@ static void __exit fnic_cleanup_module(void)
{
pci_unregister_driver(&fnic_driver);
destroy_workqueue(fnic_event_queue);
+
+ if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON)
+ destroy_workqueue(reset_fnic_work_queue);
+
if (fnic_fip_queue)
destroy_workqueue(fnic_fip_queue);
+
kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
kmem_cache_destroy(fnic_io_req_cache);
+ kmem_cache_destroy(fdls_frame_cache);
fc_release_transport(fnic_fc_transport);
fnic_trace_free();
fnic_fc_trace_free();
diff --git a/drivers/scsi/fnic/fnic_pci_subsys_devid.c b/drivers/scsi/fnic/fnic_pci_subsys_devid.c
new file mode 100644
index 000000000000..36a2c1268422
--- /dev/null
+++ b/drivers/scsi/fnic/fnic_pci_subsys_devid.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/mempool.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/kthread.h>
+#include <linux/if_ether.h>
+#include "fnic.h"
+
+static struct fnic_pcie_device fnic_pcie_device_table[] = {
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno", PCI_SUBDEVICE_ID_CISCO_VASONA,
+ "VIC 1280"},
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno", PCI_SUBDEVICE_ID_CISCO_COTATI,
+ "VIC 1240"},
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno",
+ PCI_SUBDEVICE_ID_CISCO_LEXINGTON, "VIC 1225"},
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno", PCI_SUBDEVICE_ID_CISCO_ICEHOUSE,
+ "VIC 1285"},
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno",
+ PCI_SUBDEVICE_ID_CISCO_KIRKWOODLAKE, "VIC 1225T"},
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno",
+ PCI_SUBDEVICE_ID_CISCO_SUSANVILLE, "VIC 1227"},
+ {PCI_DEVICE_ID_CISCO_SERENO, "Sereno", PCI_SUBDEVICE_ID_CISCO_TORRANCE,
+ "VIC 1227T"},
+
+ {PCI_DEVICE_ID_CISCO_CRUZ, "Cruz", PCI_SUBDEVICE_ID_CISCO_CALISTOGA,
+ "VIC 1340"},
+ {PCI_DEVICE_ID_CISCO_CRUZ, "Cruz", PCI_SUBDEVICE_ID_CISCO_MOUNTAINVIEW,
+ "VIC 1380"},
+ {PCI_DEVICE_ID_CISCO_CRUZ, "Cruz", PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN,
+ "C3260-SIOC"},
+ {PCI_DEVICE_ID_CISCO_CRUZ, "Cruz", PCI_SUBDEVICE_ID_CISCO_CLEARLAKE,
+ "VIC 1385"},
+ {PCI_DEVICE_ID_CISCO_CRUZ, "Cruz", PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN2,
+ "C3260-SIOC"},
+ {PCI_DEVICE_ID_CISCO_CRUZ, "Cruz", PCI_SUBDEVICE_ID_CISCO_CLAREMONT,
+ "VIC 1387"},
+
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega", PCI_SUBDEVICE_ID_CISCO_BRADBURY,
+ "VIC 1457"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega",
+ PCI_SUBDEVICE_ID_CISCO_BRENTWOOD, "VIC 1455"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega",
+ PCI_SUBDEVICE_ID_CISCO_BURLINGAME, "VIC 1487"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega", PCI_SUBDEVICE_ID_CISCO_BAYSIDE,
+ "VIC 1485"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega",
+ PCI_SUBDEVICE_ID_CISCO_BAKERSFIELD, "VIC 1440"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega",
+ PCI_SUBDEVICE_ID_CISCO_BOONVILLE, "VIC 1480"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega", PCI_SUBDEVICE_ID_CISCO_BENICIA,
+ "VIC 1495"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega", PCI_SUBDEVICE_ID_CISCO_BEAUMONT,
+ "VIC 1497"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega", PCI_SUBDEVICE_ID_CISCO_BRISBANE,
+ "VIC 1467"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega", PCI_SUBDEVICE_ID_CISCO_BENTON,
+ "VIC 1477"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega",
+ PCI_SUBDEVICE_ID_CISCO_TWIN_RIVER, "VIC 14425"},
+ {PCI_DEVICE_ID_CISCO_BODEGA, "Bodega",
+ PCI_SUBDEVICE_ID_CISCO_TWIN_PEAK, "VIC 14825"},
+
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly", PCI_SUBDEVICE_ID_CISCO_BERN,
+ "VIC 15420"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly",
+ PCI_SUBDEVICE_ID_CISCO_STOCKHOLM, "VIC 15428"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly", PCI_SUBDEVICE_ID_CISCO_KRAKOW,
+ "VIC 15411"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly",
+ PCI_SUBDEVICE_ID_CISCO_LUCERNE, "VIC 15231"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly", PCI_SUBDEVICE_ID_CISCO_TURKU,
+ "VIC 15238"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly", PCI_SUBDEVICE_ID_CISCO_GENEVA,
+ "VIC 15422"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly",
+ PCI_SUBDEVICE_ID_CISCO_HELSINKI, "VIC 15235"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly",
+ PCI_SUBDEVICE_ID_CISCO_GOTHENBURG, "VIC 15425"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly",
+ PCI_SUBDEVICE_ID_CISCO_TURKU_PLUS, "VIC 15237"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly", PCI_SUBDEVICE_ID_CISCO_ZURICH,
+ "VIC 15230"},
+ {PCI_DEVICE_ID_CISCO_BEVERLY, "Beverly", PCI_SUBDEVICE_ID_CISCO_RIGA,
+ "VIC 15427"},
+
+ {0,}
+};
+
+int fnic_get_desc_by_devid(struct pci_dev *pdev, char **desc,
+ char **subsys_desc)
+{
+ unsigned short device = PCI_DEVICE_ID_CISCO_VIC_FC;
+ int max = ARRAY_SIZE(fnic_pcie_device_table);
+ struct fnic_pcie_device *t = fnic_pcie_device_table;
+ int index = 0;
+
+ if (pdev->device != device)
+ return 1;
+
+ while (t->device != 0) {
+ if (memcmp
+ ((char *) &pdev->subsystem_device,
+ (char *) &t->subsystem_device, sizeof(short)) == 0)
+ break;
+ t++;
+ index++;
+ }
+
+ if (index >= max - 1) {
+ *desc = NULL;
+ *subsys_desc = NULL;
+ return 1;
+ }
+
+ *desc = fnic_pcie_device_table[index].desc;
+ *subsys_desc = fnic_pcie_device_table[index].subsys_desc;
+ return 0;
+}
diff --git a/drivers/scsi/fnic/fnic_res.c b/drivers/scsi/fnic/fnic_res.c
index 33dd27f6f24e..763475587b7f 100644
--- a/drivers/scsi/fnic/fnic_res.c
+++ b/drivers/scsi/fnic/fnic_res.c
@@ -30,9 +30,7 @@ int fnic_get_vnic_config(struct fnic *fnic)
offsetof(struct vnic_fc_config, m), \
sizeof(c->m), &c->m); \
if (err) { \
- shost_printk(KERN_ERR, fnic->lport->host, \
- "Error getting %s, %d\n", #m, \
- err); \
+ dev_err(&fnic->pdev->dev, "Error getting %s, %d\n", #m, err); \
return err; \
} \
} while (0);
@@ -60,6 +58,11 @@ int fnic_get_vnic_config(struct fnic *fnic)
GET_CONFIG(intr_mode);
GET_CONFIG(wq_copy_count);
+ if ((c->flags & (VFCF_FC_INITIATOR)) == 0) {
+ dev_info(&fnic->pdev->dev, "vNIC role not defined (def role: FC Init)\n");
+ c->flags |= VFCF_FC_INITIATOR;
+ }
+
c->wq_enet_desc_count =
min_t(u32, VNIC_FNIC_WQ_DESCS_MAX,
max_t(u32, VNIC_FNIC_WQ_DESCS_MIN,
@@ -139,40 +142,28 @@ int fnic_get_vnic_config(struct fnic *fnic)
c->wq_copy_count = min_t(u16, FNIC_WQ_COPY_MAX, c->wq_copy_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC MAC addr %pM "
- "wq/wq_copy/rq %d/%d/%d\n",
- fnic->ctlr.ctl_src_addr,
+ dev_info(&fnic->pdev->dev, "fNIC MAC addr %p wq/wq_copy/rq %d/%d/%d\n",
+ fnic->data_src_addr,
c->wq_enet_desc_count, c->wq_copy_desc_count,
c->rq_desc_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC node wwn %llx port wwn %llx\n",
+ dev_info(&fnic->pdev->dev, "fNIC node wwn 0x%llx port wwn 0x%llx\n",
c->node_wwn, c->port_wwn);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC ed_tov %d ra_tov %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC ed_tov %d ra_tov %d\n",
c->ed_tov, c->ra_tov);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC mtu %d intr timer %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC mtu %d intr timer %d\n",
c->maxdatafieldsize, c->intr_timer);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC flags 0x%x luns per tgt %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC flags 0x%x luns per tgt %d\n",
c->flags, c->luns_per_tgt);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC flogi_retries %d flogi timeout %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC flogi_retries %d flogi timeout %d\n",
c->flogi_retries, c->flogi_timeout);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC plogi retries %d plogi timeout %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC plogi retries %d plogi timeout %d\n",
c->plogi_retries, c->plogi_timeout);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC io throttle count %d link dn timeout %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC io throttle count %d link dn timeout %d\n",
c->io_throttle_count, c->link_down_timeout);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC port dn io retries %d port dn timeout %d\n",
+ dev_info(&fnic->pdev->dev, "fNIC port dn io retries %d port dn timeout %d\n",
c->port_down_io_retries, c->port_down_timeout);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC wq_copy_count: %d\n", c->wq_copy_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC intr mode: %d\n", c->intr_mode);
+ dev_info(&fnic->pdev->dev, "fNIC wq_copy_count: %d\n", c->wq_copy_count);
+ dev_info(&fnic->pdev->dev, "fNIC intr mode: %d\n", c->intr_mode);
return 0;
}
@@ -206,18 +197,12 @@ void fnic_get_res_counts(struct fnic *fnic)
fnic->intr_count = vnic_dev_get_res_count(fnic->vdev,
RES_TYPE_INTR_CTRL);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC fw resources wq_count: %d\n", fnic->wq_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC fw resources raw_wq_count: %d\n", fnic->raw_wq_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC fw resources wq_copy_count: %d\n", fnic->wq_copy_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC fw resources rq_count: %d\n", fnic->rq_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC fw resources cq_count: %d\n", fnic->cq_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC fw resources intr_count: %d\n", fnic->intr_count);
+ dev_info(&fnic->pdev->dev, "vNIC fw resources wq_count: %d\n", fnic->wq_count);
+ dev_info(&fnic->pdev->dev, "vNIC fw resources raw_wq_count: %d\n", fnic->raw_wq_count);
+ dev_info(&fnic->pdev->dev, "vNIC fw resources wq_copy_count: %d\n", fnic->wq_copy_count);
+ dev_info(&fnic->pdev->dev, "vNIC fw resources rq_count: %d\n", fnic->rq_count);
+ dev_info(&fnic->pdev->dev, "vNIC fw resources cq_count: %d\n", fnic->cq_count);
+ dev_info(&fnic->pdev->dev, "vNIC fw resources intr_count: %d\n", fnic->intr_count);
}
void fnic_free_vnic_resources(struct fnic *fnic)
@@ -253,19 +238,17 @@ int fnic_alloc_vnic_resources(struct fnic *fnic)
intr_mode = vnic_dev_get_intr_mode(fnic->vdev);
- shost_printk(KERN_INFO, fnic->lport->host, "vNIC interrupt mode: %s\n",
+ dev_info(&fnic->pdev->dev, "vNIC interrupt mode: %s\n",
intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" :
intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" :
intr_mode == VNIC_DEV_INTR_MODE_MSIX ?
"MSI-X" : "unknown");
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC resources avail: wq %d cp_wq %d raw_wq %d rq %d",
+ dev_info(&fnic->pdev->dev, "res avail: wq %d cp_wq %d raw_wq %d rq %d",
fnic->wq_count, fnic->wq_copy_count,
fnic->raw_wq_count, fnic->rq_count);
- shost_printk(KERN_INFO, fnic->lport->host,
- "vNIC resources avail: cq %d intr %d cpy-wq desc count %d\n",
+ dev_info(&fnic->pdev->dev, "res avail: cq %d intr %d cpy-wq desc count %d\n",
fnic->cq_count, fnic->intr_count,
fnic->config.wq_copy_desc_count);
@@ -340,8 +323,7 @@ int fnic_alloc_vnic_resources(struct fnic *fnic)
RES_TYPE_INTR_PBA_LEGACY, 0);
if (!fnic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "Failed to hook legacy pba resource\n");
+ dev_err(&fnic->pdev->dev, "Failed to hook legacy pba resource\n");
err = -ENODEV;
goto err_out_cleanup;
}
@@ -444,8 +426,7 @@ int fnic_alloc_vnic_resources(struct fnic *fnic)
/* init the stats memory by making the first call here */
err = vnic_dev_stats_dump(fnic->vdev, &fnic->stats);
if (err) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "vnic_dev_stats_dump failed - x%x\n", err);
+ dev_err(&fnic->pdev->dev, "vnic_dev_stats_dump failed - x%x\n", err);
goto err_out_cleanup;
}
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index 2ba61dba4569..7133b254cbe4 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -23,11 +23,13 @@
#include <scsi/scsi_tcq.h>
#include <scsi/fc/fc_els.h>
#include <scsi/fc/fc_fcoe.h>
-#include <scsi/libfc.h>
#include <scsi/fc_frame.h>
+#include <scsi/scsi_transport_fc.h>
#include "fnic_io.h"
#include "fnic.h"
+static void fnic_cleanup_io(struct fnic *fnic, int exclude_id);
+
const char *fnic_state_str[] = {
[FNIC_IN_FC_MODE] = "FNIC_IN_FC_MODE",
[FNIC_IN_FC_TRANS_ETH_MODE] = "FNIC_IN_FC_TRANS_ETH_MODE",
@@ -65,6 +67,18 @@ static const char *fcpio_status_str[] = {
[FCPIO_LUNMAP_CHNG_PEND] = "FCPIO_LUNHMAP_CHNG_PEND",
};
+enum terminate_io_return {
+ TERM_SUCCESS = 0,
+ TERM_NO_SC = 1,
+ TERM_IO_REQ_NOT_FOUND,
+ TERM_ANOTHER_PORT,
+ TERM_GSTATE,
+ TERM_IO_BLOCKED,
+ TERM_OUT_OF_WQ_DESC,
+ TERM_TIMED_OUT,
+ TERM_MISC,
+};
+
const char *fnic_state_to_str(unsigned int state)
{
if (state >= ARRAY_SIZE(fnic_state_str) || !fnic_state_str[state])
@@ -90,8 +104,6 @@ static const char *fnic_fcpio_status_to_str(unsigned int status)
return fcpio_status_str[status];
}
-static void fnic_cleanup_io(struct fnic *fnic);
-
/*
* Unmap the data buffer and sense buffer for an io_req,
* also unmap and free the device-private scatter/gather list.
@@ -114,6 +126,65 @@ static void fnic_release_ioreq_buf(struct fnic *fnic,
SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
}
+static bool
+fnic_count_portid_ioreqs_iter(struct fnic *fnic, struct scsi_cmnd *sc,
+ void *data1, void *data2)
+{
+ u32 *portid = data1;
+ unsigned int *count = data2;
+ struct fnic_io_req *io_req = fnic_priv(sc)->io_req;
+
+ if (!io_req || (*portid && (io_req->port_id != *portid)))
+ return true;
+
+ *count += 1;
+ return true;
+}
+
+unsigned int fnic_count_ioreqs(struct fnic *fnic, u32 portid)
+{
+ unsigned int count = 0;
+
+ fnic_scsi_io_iter(fnic, fnic_count_portid_ioreqs_iter,
+ &portid, &count);
+
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "portid = 0x%x count = %u\n", portid, count);
+ return count;
+}
+
+unsigned int fnic_count_all_ioreqs(struct fnic *fnic)
+{
+ return fnic_count_ioreqs(fnic, 0);
+}
+
+static bool
+fnic_count_lun_ioreqs_iter(struct fnic *fnic, struct scsi_cmnd *sc,
+ void *data1, void *data2)
+{
+ struct scsi_device *scsi_device = data1;
+ unsigned int *count = data2;
+
+ if (sc->device != scsi_device || !fnic_priv(sc)->io_req)
+ return true;
+
+ *count += 1;
+ return true;
+}
+
+unsigned int
+fnic_count_lun_ioreqs(struct fnic *fnic, struct scsi_device *scsi_device)
+{
+ unsigned int count = 0;
+
+ fnic_scsi_io_iter(fnic, fnic_count_lun_ioreqs_iter,
+ scsi_device, &count);
+
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "lun = %p count = %u\n", scsi_device, count);
+ return count;
+}
+
/* Free up Copy Wq descriptors. Called with copy_wq lock held */
static int free_wq_copy_descs(struct fnic *fnic, struct vnic_wq_copy *wq, unsigned int hwq)
{
@@ -179,12 +250,11 @@ int fnic_fw_reset_handler(struct fnic *fnic)
struct vnic_wq_copy *wq = &fnic->hw_copy_wq[0];
int ret = 0;
unsigned long flags;
+ unsigned int ioreq_count;
/* indicate fwreset to io path */
fnic_set_state_flags(fnic, FNIC_FLAGS_FWRESET);
-
- skb_queue_purge(&fnic->frame_queue);
- skb_queue_purge(&fnic->tx_queue);
+ ioreq_count = fnic_count_all_ioreqs(fnic);
/* wait for io cmpl */
while (atomic_read(&fnic->in_flight))
@@ -198,6 +268,8 @@ int fnic_fw_reset_handler(struct fnic *fnic)
if (!vnic_wq_copy_desc_avail(wq))
ret = -EAGAIN;
else {
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "ioreq_count: %u\n", ioreq_count);
fnic_queue_wq_copy_desc_fw_reset(wq, SCSI_NO_TAG);
atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
@@ -211,11 +283,11 @@ int fnic_fw_reset_handler(struct fnic *fnic)
if (!ret) {
atomic64_inc(&fnic->fnic_stats.reset_stats.fw_resets);
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"Issued fw reset\n");
} else {
fnic_clear_state_flags(fnic, FNIC_FLAGS_FWRESET);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"Failed to issue fw reset\n");
}
@@ -231,10 +303,10 @@ int fnic_flogi_reg_handler(struct fnic *fnic, u32 fc_id)
{
struct vnic_wq_copy *wq = &fnic->hw_copy_wq[0];
enum fcpio_flogi_reg_format_type format;
- struct fc_lport *lp = fnic->lport;
u8 gw_mac[ETH_ALEN];
int ret = 0;
unsigned long flags;
+ struct fnic_iport_s *iport = &fnic->iport;
spin_lock_irqsave(&fnic->wq_copy_lock[0], flags);
@@ -246,28 +318,23 @@ int fnic_flogi_reg_handler(struct fnic *fnic, u32 fc_id)
goto flogi_reg_ioreq_end;
}
- if (fnic->ctlr.map_dest) {
- eth_broadcast_addr(gw_mac);
- format = FCPIO_FLOGI_REG_DEF_DEST;
- } else {
- memcpy(gw_mac, fnic->ctlr.dest_addr, ETH_ALEN);
- format = FCPIO_FLOGI_REG_GW_DEST;
- }
+ memcpy(gw_mac, fnic->iport.fcfmac, ETH_ALEN);
+ format = FCPIO_FLOGI_REG_GW_DEST;
- if ((fnic->config.flags & VFCF_FIP_CAPABLE) && !fnic->ctlr.map_dest) {
+ if (fnic->config.flags & VFCF_FIP_CAPABLE) {
fnic_queue_wq_copy_desc_fip_reg(wq, SCSI_NO_TAG,
fc_id, gw_mac,
- fnic->data_src_addr,
- lp->r_a_tov, lp->e_d_tov);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "FLOGI FIP reg issued fcid %x src %pM dest %pM\n",
- fc_id, fnic->data_src_addr, gw_mac);
+ fnic->iport.fpma,
+ iport->r_a_tov, iport->e_d_tov);
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI FIP reg issued fcid: 0x%x src %p dest %p\n",
+ fc_id, fnic->iport.fpma, gw_mac);
} else {
fnic_queue_wq_copy_desc_flogi_reg(wq, SCSI_NO_TAG,
format, fc_id, gw_mac);
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "FLOGI reg issued fcid 0x%x map %d dest 0x%p\n",
- fc_id, fnic->ctlr.map_dest, gw_mac);
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FLOGI reg issued fcid 0x%x dest %p\n",
+ fc_id, gw_mac);
}
atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
@@ -295,13 +362,17 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
{
struct scatterlist *sg;
struct fc_rport *rport = starget_to_rport(scsi_target(sc->device));
- struct fc_rport_libfc_priv *rp = rport->dd_data;
struct host_sg_desc *desc;
struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats;
unsigned int i;
int flags;
u8 exch_flags;
struct scsi_lun fc_lun;
+ struct fnic_tport_s *tport;
+ struct rport_dd_data_s *rdd_data;
+
+ rdd_data = rport->dd_data;
+ tport = rdd_data->tport;
if (sg_count) {
/* For each SGE, create a device desc entry */
@@ -342,7 +413,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
free_wq_copy_descs(fnic, wq, hwq);
if (unlikely(!vnic_wq_copy_desc_avail(wq))) {
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"fnic_queue_wq_copy_desc failure - no descriptors\n");
atomic64_inc(&misc_stats->io_cpwq_alloc_failures);
return SCSI_MLQUEUE_HOST_BUSY;
@@ -356,7 +427,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
exch_flags = 0;
if ((fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) &&
- (rp->flags & FC_RP_FLAGS_RETRY))
+ (tport->tgt_flags & FDLS_FC_RP_FLAGS_RETRY))
exch_flags |= FCPIO_ICMND_SRFLAG_RETRY;
fnic_queue_wq_copy_desc_icmnd_16(wq, mqtag,
@@ -371,8 +442,8 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
sc->cmnd, sc->cmd_len,
scsi_bufflen(sc),
fc_lun.scsi_lun, io_req->port_id,
- rport->maxframe_size, rp->r_a_tov,
- rp->e_d_tov);
+ tport->max_payload_size,
+ tport->r_a_tov, tport->e_d_tov);
atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
@@ -388,10 +459,10 @@ int fnic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
struct request *const rq = scsi_cmd_to_rq(sc);
uint32_t mqtag = 0;
void (*done)(struct scsi_cmnd *) = scsi_done;
- struct fc_lport *lp = shost_priv(sc->device->host);
struct fc_rport *rport;
struct fnic_io_req *io_req = NULL;
- struct fnic *fnic = lport_priv(lp);
+ struct fnic *fnic = *((struct fnic **) shost_priv(sc->device->host));
+ struct fnic_iport_s *iport = NULL;
struct fnic_stats *fnic_stats = &fnic->fnic_stats;
struct vnic_wq_copy *wq;
int ret = 1;
@@ -400,32 +471,14 @@ int fnic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
unsigned long flags = 0;
unsigned long ptr;
int io_lock_acquired = 0;
- struct fc_rport_libfc_priv *rp;
uint16_t hwq = 0;
-
- mqtag = blk_mq_unique_tag(rq);
- spin_lock_irqsave(&fnic->fnic_lock, flags);
-
- if (unlikely(fnic_chk_state_flags_locked(fnic, FNIC_FLAGS_IO_BLOCKED))) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
- "fnic IO blocked flags: 0x%lx. Returning SCSI_MLQUEUE_HOST_BUSY\n",
- fnic->state_flags);
- return SCSI_MLQUEUE_HOST_BUSY;
- }
-
- if (unlikely(fnic_chk_state_flags_locked(fnic, FNIC_FLAGS_FWRESET))) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
- "fnic flags: 0x%lx. Returning SCSI_MLQUEUE_HOST_BUSY\n",
- fnic->state_flags);
- return SCSI_MLQUEUE_HOST_BUSY;
- }
+ struct fnic_tport_s *tport = NULL;
+ struct rport_dd_data_s *rdd_data;
+ uint16_t lun0_delay = 0;
rport = starget_to_rport(scsi_target(sc->device));
if (!rport) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"returning DID_NO_CONNECT for IO as rport is NULL\n");
sc->result = DID_NO_CONNECT << 16;
done(sc);
@@ -434,50 +487,96 @@ int fnic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
ret = fc_remote_port_chkready(rport);
if (ret) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"rport is not ready\n");
- atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
+ atomic64_inc(&fnic_stats->misc_stats.tport_not_ready);
sc->result = ret;
done(sc);
return 0;
}
- rp = rport->dd_data;
- if (!rp || rp->rp_state == RPORT_ST_DELETE) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "rport 0x%x removed, returning DID_NO_CONNECT\n",
- rport->port_id);
+ mqtag = blk_mq_unique_tag(rq);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ iport = &fnic->iport;
- atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
- sc->result = DID_NO_CONNECT<<16;
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "returning DID_NO_CONNECT for IO as iport state: %d\n",
+ iport->state);
+ sc->result = DID_NO_CONNECT << 16;
done(sc);
return 0;
}
- if (rp->rp_state != RPORT_ST_READY) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "rport 0x%x in state 0x%x, returning DID_IMM_RETRY\n",
- rport->port_id, rp->rp_state);
+ /* fc_remote_port_add() may have added the tport to
+ * fc_transport but dd_data not yet set
+ */
+ rdd_data = rport->dd_data;
+ tport = rdd_data->tport;
+ if (!tport || (rdd_data->iport != iport)) {
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "dd_data not yet set in SCSI for rport portid: 0x%x\n",
+ rport->port_id);
+ tport = fnic_find_tport_by_fcid(iport, rport->port_id);
+ if (!tport) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "returning DID_BUS_BUSY for IO as tport not found for: 0x%x\n",
+ rport->port_id);
+ sc->result = DID_BUS_BUSY << 16;
+ done(sc);
+ return 0;
+ }
+
+ /* Re-assign same params as in fnic_fdls_add_tport */
+ rport->maxframe_size = FNIC_FC_MAX_PAYLOAD_LEN;
+ rport->supported_classes =
+ FC_COS_CLASS3 | FC_RPORT_ROLE_FCP_TARGET;
+ /* the dd_data is allocated by fctransport of size dd_fcrport_size */
+ rdd_data = rport->dd_data;
+ rdd_data->tport = tport;
+ rdd_data->iport = iport;
+ tport->rport = rport;
+ tport->flags |= FNIC_FDLS_SCSI_REGISTERED;
+ }
- sc->result = DID_IMM_RETRY << 16;
+ if ((tport->state != FDLS_TGT_STATE_READY)
+ && (tport->state != FDLS_TGT_STATE_ADISC)) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "returning DID_NO_CONNECT for IO as tport state: %d\n",
+ tport->state);
+ sc->result = DID_NO_CONNECT << 16;
done(sc);
return 0;
}
- if (lp->state != LPORT_ST_READY || !(lp->link_up)) {
+ atomic_inc(&fnic->in_flight);
+ atomic_inc(&tport->in_flight);
+
+ if (unlikely(fnic_chk_state_flags_locked(fnic, FNIC_FLAGS_IO_BLOCKED))) {
+ atomic_dec(&fnic->in_flight);
+ atomic_dec(&tport->in_flight);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
- "state not ready: %d/link not up: %d Returning HOST_BUSY\n",
- lp->state, lp->link_up);
return SCSI_MLQUEUE_HOST_BUSY;
}
- atomic_inc(&fnic->in_flight);
+ if (unlikely(fnic_chk_state_flags_locked(fnic, FNIC_FLAGS_FWRESET))) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "fnic flags FW reset: 0x%lx. Returning SCSI_MLQUEUE_HOST_BUSY\n",
+ fnic->state_flags);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ if (!tport->lun0_delay) {
+ lun0_delay = 1;
+ tport->lun0_delay++;
+ }
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
fnic_priv(sc)->state = FNIC_IOREQ_NOT_INITED;
fnic_priv(sc)->flags = FNIC_NO_FLAGS;
@@ -499,6 +598,7 @@ int fnic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
goto out;
}
+ io_req->tport = tport;
/* Determine the type of scatter/gather list we need */
io_req->sgl_cnt = sg_count;
io_req->sgl_type = FNIC_SGL_CACHE_DFLT;
@@ -575,6 +675,7 @@ int fnic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
mempool_free(io_req, fnic->io_req_pool);
}
atomic_dec(&fnic->in_flight);
+ atomic_dec(&tport->in_flight);
return ret;
} else {
atomic64_inc(&fnic_stats->io_stats.active_ios);
@@ -602,6 +703,14 @@ out:
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
atomic_dec(&fnic->in_flight);
+ atomic_dec(&tport->in_flight);
+
+ if (lun0_delay) {
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "LUN0 delay\n");
+ mdelay(LUN0_DELAY_TIME);
+ }
+
return ret;
}
@@ -625,7 +734,7 @@ static int fnic_fcpio_fw_reset_cmpl_handler(struct fnic *fnic,
atomic64_inc(&reset_stats->fw_reset_completions);
/* Clean up all outstanding io requests */
- fnic_cleanup_io(fnic);
+ fnic_cleanup_io(fnic, SCSI_NO_TAG);
atomic64_set(&fnic->fnic_stats.fw_stats.active_fw_reqs, 0);
atomic64_set(&fnic->fnic_stats.io_stats.active_ios, 0);
@@ -637,44 +746,37 @@ static int fnic_fcpio_fw_reset_cmpl_handler(struct fnic *fnic,
if (fnic->state == FNIC_IN_FC_TRANS_ETH_MODE) {
/* Check status of reset completion */
if (!hdr_status) {
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"reset cmpl success\n");
/* Ready to send flogi out */
fnic->state = FNIC_IN_ETH_MODE;
} else {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"reset failed with header status: %s\n",
fnic_fcpio_status_to_str(hdr_status));
- /*
- * Unable to change to eth mode, cannot send out flogi
- * Change state to fc mode, so that subsequent Flogi
- * requests from libFC will cause more attempts to
- * reset the firmware. Free the cached flogi
- */
fnic->state = FNIC_IN_FC_MODE;
atomic64_inc(&reset_stats->fw_reset_failures);
ret = -1;
}
} else {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"Unexpected state while processing reset completion: %s\n",
fnic_state_to_str(fnic->state));
atomic64_inc(&reset_stats->fw_reset_failures);
ret = -1;
}
- /* Thread removing device blocks till firmware reset is complete */
- if (fnic->remove_wait)
- complete(fnic->remove_wait);
+ if (fnic->fw_reset_done)
+ complete(fnic->fw_reset_done);
/*
* If fnic is being removed, or fw reset failed
* free the flogi frame. Else, send it out
*/
- if (fnic->remove_wait || ret) {
+ if (ret) {
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- skb_queue_purge(&fnic->tx_queue);
+ fnic_free_txq(&fnic->tx_queue);
goto reset_cmpl_handler_end;
}
@@ -710,19 +812,19 @@ static int fnic_fcpio_flogi_reg_cmpl_handler(struct fnic *fnic,
/* Check flogi registration completion status */
if (!hdr_status) {
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "flog reg succeeded\n");
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "FLOGI reg succeeded\n");
fnic->state = FNIC_IN_FC_MODE;
} else {
FNIC_SCSI_DBG(KERN_DEBUG,
- fnic->lport->host, fnic->fnic_num,
- "fnic flogi reg :failed %s\n",
+ fnic->host, fnic->fnic_num,
+ "fnic flogi reg failed: %s\n",
fnic_fcpio_status_to_str(hdr_status));
fnic->state = FNIC_IN_ETH_MODE;
ret = -1;
}
} else {
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Unexpected fnic state %s while"
" processing flogi reg completion\n",
fnic_state_to_str(fnic->state));
@@ -795,7 +897,7 @@ static inline void fnic_fcpio_ack_handler(struct fnic *fnic,
spin_unlock_irqrestore(&fnic->wq_copy_lock[wq_index], flags);
FNIC_TRACE(fnic_fcpio_ack_handler,
- fnic->lport->host->host_no, 0, 0, ox_id_tag[2], ox_id_tag[3],
+ fnic->host->host_no, 0, 0, ox_id_tag[2], ox_id_tag[3],
ox_id_tag[4], ox_id_tag[5]);
}
@@ -833,36 +935,36 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, unsigned int cq_ind
hwq = blk_mq_unique_tag_to_hwq(mqtag);
if (hwq != cq_index) {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x cq index: %d ",
hwq, mqtag, tag, cq_index);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hdr status: %s icmnd completion on the wrong queue\n",
fnic_fcpio_status_to_str(hdr_status));
}
if (tag >= fnic->fnic_max_tag_id) {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x cq index: %d ",
hwq, mqtag, tag, cq_index);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hdr status: %s Out of range tag\n",
fnic_fcpio_status_to_str(hdr_status));
return;
}
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
- sc = scsi_host_find_tag(fnic->lport->host, id);
+ sc = scsi_host_find_tag(fnic->host, id);
WARN_ON_ONCE(!sc);
if (!sc) {
atomic64_inc(&fnic_stats->io_stats.sc_null);
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"icmnd_cmpl sc is null - "
"hdr status = %s tag = 0x%x desc = 0x%p\n",
fnic_fcpio_status_to_str(hdr_status), id, desc);
FNIC_TRACE(fnic_fcpio_icmnd_cmpl_handler,
- fnic->lport->host->host_no, id,
+ fnic->host->host_no, id,
((u64)icmnd_cmpl->_resvd0[1] << 16 |
(u64)icmnd_cmpl->_resvd0[0]),
((u64)hdr_status << 16 |
@@ -885,7 +987,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, unsigned int cq_ind
atomic64_inc(&fnic_stats->io_stats.ioreq_null);
fnic_priv(sc)->flags |= FNIC_IO_REQ_NULL;
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"icmnd_cmpl io_req is null - "
"hdr status = %s tag = 0x%x sc 0x%p\n",
fnic_fcpio_status_to_str(hdr_status), id, sc);
@@ -912,7 +1014,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, unsigned int cq_ind
if(FCPIO_ABORTED == hdr_status)
fnic_priv(sc)->flags |= FNIC_IO_ABORTED;
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"icmnd_cmpl abts pending "
"hdr status = %s tag = 0x%x sc = 0x%p "
"scsi_status = %x residual = %d\n",
@@ -943,6 +1045,9 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, unsigned int cq_ind
if (icmnd_cmpl->scsi_status == SAM_STAT_TASK_SET_FULL)
atomic64_inc(&fnic_stats->misc_stats.queue_fulls);
+
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "xfer_len: %llu", xfer_len);
break;
case FCPIO_TIMEOUT: /* request was timed out */
@@ -1004,7 +1109,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, unsigned int cq_ind
if (hdr_status != FCPIO_SUCCESS) {
atomic64_inc(&fnic_stats->io_stats.io_failures);
- shost_printk(KERN_ERR, fnic->lport->host, "hdr status = %s\n",
+ shost_printk(KERN_ERR, fnic->host, "hdr status = %s\n",
fnic_fcpio_status_to_str(hdr_status));
}
@@ -1024,13 +1129,13 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, unsigned int cq_ind
desc, cmd_trace, fnic_flags_and_state(sc));
if (sc->sc_data_direction == DMA_FROM_DEVICE) {
- fnic->lport->host_stats.fcp_input_requests++;
+ fnic_stats->host_stats.fcp_input_requests++;
fnic->fcp_input_bytes += xfer_len;
} else if (sc->sc_data_direction == DMA_TO_DEVICE) {
- fnic->lport->host_stats.fcp_output_requests++;
+ fnic_stats->host_stats.fcp_output_requests++;
fnic->fcp_output_bytes += xfer_len;
} else
- fnic->lport->host_stats.fcp_control_requests++;
+ fnic_stats->host_stats.fcp_control_requests++;
/* Call SCSI completion function to complete the IO */
scsi_done(sc);
@@ -1097,27 +1202,27 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
hwq = blk_mq_unique_tag_to_hwq(id & FNIC_TAG_MASK);
if (hwq != cq_index) {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x cq index: %d ",
hwq, mqtag, tag, cq_index);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hdr status: %s ITMF completion on the wrong queue\n",
fnic_fcpio_status_to_str(hdr_status));
}
if (tag > fnic->fnic_max_tag_id) {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x cq index: %d ",
hwq, mqtag, tag, cq_index);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hdr status: %s Tag out of range\n",
fnic_fcpio_status_to_str(hdr_status));
return;
} else if ((tag == fnic->fnic_max_tag_id) && !(id & FNIC_TAG_DEV_RST)) {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x cq index: %d ",
hwq, mqtag, tag, cq_index);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hdr status: %s Tag out of range\n",
fnic_fcpio_status_to_str(hdr_status));
return;
@@ -1133,14 +1238,14 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
if (io_req)
sc = io_req->sc;
} else {
- sc = scsi_host_find_tag(fnic->lport->host, id & FNIC_TAG_MASK);
+ sc = scsi_host_find_tag(fnic->host, id & FNIC_TAG_MASK);
}
WARN_ON_ONCE(!sc);
if (!sc) {
atomic64_inc(&fnic_stats->io_stats.sc_null);
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"itmf_cmpl sc is null - hdr status = %s tag = 0x%x\n",
fnic_fcpio_status_to_str(hdr_status), tag);
return;
@@ -1152,7 +1257,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
atomic64_inc(&fnic_stats->io_stats.ioreq_null);
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
fnic_priv(sc)->flags |= FNIC_IO_ABT_TERM_REQ_NULL;
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"itmf_cmpl io_req is null - "
"hdr status = %s tag = 0x%x sc 0x%p\n",
fnic_fcpio_status_to_str(hdr_status), tag, sc);
@@ -1163,7 +1268,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
if ((id & FNIC_TAG_ABORT) && (id & FNIC_TAG_DEV_RST)) {
/* Abort and terminate completion of device reset req */
/* REVISIT : Add asserts about various flags */
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x hst: %s Abt/term completion received\n",
hwq, mqtag, tag,
fnic_fcpio_status_to_str(hdr_status));
@@ -1175,7 +1280,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
} else if (id & FNIC_TAG_ABORT) {
/* Completion of abort cmd */
- shost_printk(KERN_DEBUG, fnic->lport->host,
+ shost_printk(KERN_DEBUG, fnic->host,
"hwq: %d mqtag: 0x%x tag: 0x%x Abort header status: %s\n",
hwq, mqtag, tag,
fnic_fcpio_status_to_str(hdr_status));
@@ -1190,7 +1295,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
&term_stats->terminate_fw_timeouts);
break;
case FCPIO_ITMF_REJECTED:
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"abort reject recd. id %d\n",
(int)(id & FNIC_TAG_MASK));
break;
@@ -1225,7 +1330,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
if (!(fnic_priv(sc)->flags & (FNIC_IO_ABORTED | FNIC_IO_DONE)))
atomic64_inc(&misc_stats->no_icmnd_itmf_cmpls);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"abts cmpl recd. id %d status %s\n",
(int)(id & FNIC_TAG_MASK),
fnic_fcpio_status_to_str(hdr_status));
@@ -1238,11 +1343,11 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
if (io_req->abts_done) {
complete(io_req->abts_done);
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- shost_printk(KERN_INFO, fnic->lport->host,
+ shost_printk(KERN_INFO, fnic->host,
"hwq: %d mqtag: 0x%x tag: 0x%x Waking up abort thread\n",
hwq, mqtag, tag);
} else {
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x hst: %s Completing IO\n",
hwq, mqtag,
tag, fnic_fcpio_status_to_str(hdr_status));
@@ -1273,7 +1378,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
}
} else if (id & FNIC_TAG_DEV_RST) {
/* Completion of device reset */
- shost_printk(KERN_INFO, fnic->lport->host,
+ shost_printk(KERN_INFO, fnic->host,
"hwq: %d mqtag: 0x%x tag: 0x%x DR hst: %s\n",
hwq, mqtag,
tag, fnic_fcpio_status_to_str(hdr_status));
@@ -1285,7 +1390,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
sc->device->host->host_no, id, sc,
jiffies_to_msecs(jiffies - start_time),
desc, 0, fnic_flags_and_state(sc));
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x hst: %s Terminate pending\n",
hwq, mqtag,
tag, fnic_fcpio_status_to_str(hdr_status));
@@ -1298,7 +1403,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
sc->device->host->host_no, id, sc,
jiffies_to_msecs(jiffies - start_time),
desc, 0, fnic_flags_and_state(sc));
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"dev reset cmpl recd after time out. "
"id %d status %s\n",
(int)(id & FNIC_TAG_MASK),
@@ -1307,7 +1412,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
}
fnic_priv(sc)->state = FNIC_IOREQ_CMD_COMPLETE;
fnic_priv(sc)->flags |= FNIC_DEV_RST_DONE;
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x hst: %s DR completion received\n",
hwq, mqtag,
tag, fnic_fcpio_status_to_str(hdr_status));
@@ -1316,7 +1421,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, unsigned int cq_inde
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
} else {
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"%s: Unexpected itmf io state: hwq: %d tag 0x%x %s\n",
__func__, hwq, id, fnic_ioreq_state_to_str(fnic_priv(sc)->state));
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
@@ -1371,7 +1476,7 @@ static int fnic_fcpio_cmpl_handler(struct vnic_dev *vdev,
break;
default:
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"firmware completion type %d\n",
desc->hdr.type);
break;
@@ -1414,8 +1519,8 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data)
struct request *const rq = scsi_cmd_to_rq(sc);
struct fnic *fnic = data;
struct fnic_io_req *io_req;
- unsigned long flags = 0;
unsigned long start_time = 0;
+ unsigned long flags;
struct fnic_stats *fnic_stats = &fnic->fnic_stats;
uint16_t hwq = 0;
int tag;
@@ -1432,14 +1537,14 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data)
io_req = fnic_priv(sc)->io_req;
if (!io_req) {
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d mqtag: 0x%x tag: 0x%x flags: 0x%x No ioreq. Returning\n",
hwq, mqtag, tag, fnic_priv(sc)->flags);
return true;
}
if ((fnic_priv(sc)->flags & FNIC_DEVICE_RESET) &&
- !(fnic_priv(sc)->flags & FNIC_DEV_RST_DONE)) {
+ !(fnic_priv(sc)->flags & FNIC_DEV_RST_DONE)) {
/*
* We will be here only when FW completes reset
* without sending completions for outstanding ios.
@@ -1449,6 +1554,7 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data)
complete(io_req->dr_done);
else if (io_req && io_req->abts_done)
complete(io_req->abts_done);
+
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
return true;
} else if (fnic_priv(sc)->flags & FNIC_DEVICE_RESET) {
@@ -1458,19 +1564,19 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data)
fnic_priv(sc)->io_req = NULL;
io_req->sc = NULL;
+ start_time = io_req->start_time;
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
/*
* If there is a scsi_cmnd associated with this io_req, then
* free the corresponding state
*/
- start_time = io_req->start_time;
fnic_release_ioreq_buf(fnic, io_req, sc);
mempool_free(io_req, fnic->io_req_pool);
sc->result = DID_TRANSPORT_DISRUPTED << 16;
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
- "mqtag:0x%x tag: 0x%x sc:0x%p duration = %lu DID_TRANSPORT_DISRUPTED\n",
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "mqtag: 0x%x tag: 0x%x sc: 0x%p duration = %lu DID_TRANSPORT_DISRUPTED\n",
mqtag, tag, sc, (jiffies - start_time));
if (atomic64_read(&fnic->io_cmpl_skip))
@@ -1479,23 +1585,60 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data)
atomic64_inc(&fnic_stats->io_stats.io_completions);
FNIC_TRACE(fnic_cleanup_io,
- sc->device->host->host_no, tag, sc,
- jiffies_to_msecs(jiffies - start_time),
- 0, ((u64)sc->cmnd[0] << 32 |
- (u64)sc->cmnd[2] << 24 |
- (u64)sc->cmnd[3] << 16 |
- (u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
- fnic_flags_and_state(sc));
-
+ sc->device->host->host_no, tag, sc,
+ jiffies_to_msecs(jiffies - start_time),
+ 0, ((u64) sc->cmnd[0] << 32 |
+ (u64) sc->cmnd[2] << 24 |
+ (u64) sc->cmnd[3] << 16 |
+ (u64) sc->cmnd[4] << 8 | sc->cmnd[5]),
+ (((u64) fnic_priv(sc)->flags << 32) | fnic_priv(sc)->
+ state));
+
+ /* Complete the command to SCSI */
scsi_done(sc);
-
return true;
}
-static void fnic_cleanup_io(struct fnic *fnic)
+static void fnic_cleanup_io(struct fnic *fnic, int exclude_id)
{
- scsi_host_busy_iter(fnic->lport->host,
- fnic_cleanup_io_iter, fnic);
+ unsigned int io_count = 0;
+ unsigned long flags;
+ struct fnic_io_req *io_req = NULL;
+ struct scsi_cmnd *sc = NULL;
+
+ io_count = fnic_count_all_ioreqs(fnic);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Outstanding ioreq count: %d active io count: %lld Waiting\n",
+ io_count,
+ atomic64_read(&fnic->fnic_stats.io_stats.active_ios));
+
+ scsi_host_busy_iter(fnic->host,
+ fnic_cleanup_io_iter, fnic);
+
+ /* with sg3utils device reset, SC needs to be retrieved from ioreq */
+ spin_lock_irqsave(&fnic->wq_copy_lock[0], flags);
+ io_req = fnic->sw_copy_wq[0].io_req_table[fnic->fnic_max_tag_id];
+ if (io_req) {
+ sc = io_req->sc;
+ if (sc) {
+ if ((fnic_priv(sc)->flags & FNIC_DEVICE_RESET)
+ && !(fnic_priv(sc)->flags & FNIC_DEV_RST_DONE)) {
+ fnic_priv(sc)->flags |= FNIC_DEV_RST_DONE;
+ if (io_req && io_req->dr_done)
+ complete(io_req->dr_done);
+ }
+ }
+ }
+ spin_unlock_irqrestore(&fnic->wq_copy_lock[0], flags);
+
+ while ((io_count = fnic_count_all_ioreqs(fnic))) {
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Outstanding ioreq count: %d active io count: %lld Waiting\n",
+ io_count,
+ atomic64_read(&fnic->fnic_stats.io_stats.active_ios));
+
+ schedule_timeout(msecs_to_jiffies(100));
+ }
}
void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq,
@@ -1516,7 +1659,7 @@ void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq,
if (id >= fnic->fnic_max_tag_id)
return;
- sc = scsi_host_find_tag(fnic->lport->host, id);
+ sc = scsi_host_find_tag(fnic->host, id);
if (!sc)
return;
@@ -1545,7 +1688,7 @@ void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq,
wq_copy_cleanup_scsi_cmd:
sc->result = DID_NO_CONNECT << 16;
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num, "wq_copy_cleanup_handler:"
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num, "wq_copy_cleanup_handler:"
" DID_NO_CONNECT\n");
FNIC_TRACE(fnic_wq_copy_cleanup_handler,
@@ -1567,10 +1710,13 @@ static inline int fnic_queue_abort_io_req(struct fnic *fnic, int tag,
struct vnic_wq_copy *wq = &fnic->hw_copy_wq[hwq];
struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats;
unsigned long flags;
+ struct fnic_tport_s *tport = io_req->tport;
spin_lock_irqsave(&fnic->fnic_lock, flags);
if (unlikely(fnic_chk_state_flags_locked(fnic,
FNIC_FLAGS_IO_BLOCKED))) {
+ atomic_dec(&fnic->in_flight);
+ atomic_dec(&tport->in_flight);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
return 1;
} else
@@ -1585,7 +1731,8 @@ static inline int fnic_queue_abort_io_req(struct fnic *fnic, int tag,
if (!vnic_wq_copy_desc_avail(wq)) {
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
atomic_dec(&fnic->in_flight);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ atomic_dec(&tport->in_flight);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"fnic_queue_abort_io_req: failure: no descriptors\n");
atomic64_inc(&misc_stats->abts_cpwq_alloc_failures);
return 1;
@@ -1619,20 +1766,24 @@ static bool fnic_rport_abort_io_iter(struct scsi_cmnd *sc, void *data)
struct fnic *fnic = iter_data->fnic;
int abt_tag = 0;
struct fnic_io_req *io_req;
- unsigned long flags;
struct reset_stats *reset_stats = &fnic->fnic_stats.reset_stats;
struct terminate_stats *term_stats = &fnic->fnic_stats.term_stats;
struct scsi_lun fc_lun;
enum fnic_ioreq_state old_ioreq_state;
uint16_t hwq = 0;
+ unsigned long flags;
abt_tag = blk_mq_unique_tag(rq);
hwq = blk_mq_unique_tag_to_hwq(abt_tag);
- spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
+ if (!sc) {
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "sc is NULL abt_tag: 0x%x hwq: %d\n", abt_tag, hwq);
+ return true;
+ }
+ spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
io_req = fnic_priv(sc)->io_req;
-
if (!io_req || io_req->port_id != iter_data->port_id) {
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
return true;
@@ -1640,7 +1791,7 @@ static bool fnic_rport_abort_io_iter(struct scsi_cmnd *sc, void *data)
if ((fnic_priv(sc)->flags & FNIC_DEVICE_RESET) &&
!(fnic_priv(sc)->flags & FNIC_DEV_RST_ISSUED)) {
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d abt_tag: 0x%x flags: 0x%x Device reset is not pending\n",
hwq, abt_tag, fnic_priv(sc)->flags);
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
@@ -1655,37 +1806,40 @@ static bool fnic_rport_abort_io_iter(struct scsi_cmnd *sc, void *data)
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
return true;
}
+
if (io_req->abts_done) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "fnic_rport_exch_reset: io_req->abts_done is set "
- "state is %s\n",
+ shost_printk(KERN_ERR, fnic->host,
+ "fnic_rport_exch_reset: io_req->abts_done is set state is %s\n",
fnic_ioreq_state_to_str(fnic_priv(sc)->state));
}
if (!(fnic_priv(sc)->flags & FNIC_IO_ISSUED)) {
- shost_printk(KERN_ERR, fnic->lport->host,
- "rport_exch_reset "
- "IO not yet issued %p tag 0x%x flags "
- "%x state %d\n",
- sc, abt_tag, fnic_priv(sc)->flags, fnic_priv(sc)->state);
+ shost_printk(KERN_ERR, fnic->host,
+ "rport_exch_reset IO not yet issued %p abt_tag 0x%x",
+ sc, abt_tag);
+ shost_printk(KERN_ERR, fnic->host,
+ "flags %x state %d\n", fnic_priv(sc)->flags,
+ fnic_priv(sc)->state);
}
old_ioreq_state = fnic_priv(sc)->state;
fnic_priv(sc)->state = FNIC_IOREQ_ABTS_PENDING;
fnic_priv(sc)->abts_status = FCPIO_INVALID_CODE;
+
if (fnic_priv(sc)->flags & FNIC_DEVICE_RESET) {
atomic64_inc(&reset_stats->device_reset_terminates);
abt_tag |= FNIC_TAG_DEV_RST;
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "dev reset sc 0x%p\n", sc);
}
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fnic_rport_exch_reset dev rst sc 0x%p\n", sc);
- BUG_ON(io_req->abts_done);
-
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "fnic_rport_exch_reset: dev rst sc 0x%p\n", sc);
+ WARN_ON_ONCE(io_req->abts_done);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"fnic_rport_reset_exch: Issuing abts\n");
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- /* Now queue the abort command to firmware */
+ /* Queue the abort command to firmware */
int_to_scsilun(sc->device->lun, &fc_lun);
if (fnic_queue_abort_io_req(fnic, abt_tag,
@@ -1698,7 +1852,7 @@ static bool fnic_rport_abort_io_iter(struct scsi_cmnd *sc, void *data)
* lun reset
*/
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d abt_tag: 0x%x flags: 0x%x Queuing abort failed\n",
hwq, abt_tag, fnic_priv(sc)->flags);
if (fnic_priv(sc)->state == FNIC_IOREQ_ABTS_PENDING)
@@ -1714,11 +1868,14 @@ static bool fnic_rport_abort_io_iter(struct scsi_cmnd *sc, void *data)
atomic64_inc(&term_stats->terminates);
iter_data->term_cnt++;
}
+
return true;
}
-static void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
+void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
{
+ unsigned int io_count = 0;
+ unsigned long flags;
struct terminate_stats *term_stats = &fnic->fnic_stats.term_stats;
struct fnic_rport_abort_io_iter_data iter_data = {
.fnic = fnic,
@@ -1726,53 +1883,115 @@ static void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
.term_cnt = 0,
};
- FNIC_SCSI_DBG(KERN_DEBUG,
- fnic->lport->host, fnic->fnic_num,
- "fnic_rport_exch_reset called portid 0x%06x\n",
- port_id);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "fnic rport exchange reset for tport: 0x%06x\n",
+ port_id);
if (fnic->in_remove)
return;
- scsi_host_busy_iter(fnic->lport->host, fnic_rport_abort_io_iter,
+ io_count = fnic_count_ioreqs(fnic, port_id);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Starting terminates: rport:0x%x portid-io-count: %d active-io-count: %lld\n",
+ port_id, io_count,
+ atomic64_read(&fnic->fnic_stats.io_stats.active_ios));
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ /* Bump in_flight counter to hold off fnic_fw_reset_handler. */
+ atomic_inc(&fnic->in_flight);
+ if (unlikely(fnic_chk_state_flags_locked(fnic, FNIC_FLAGS_IO_BLOCKED))) {
+ atomic_dec(&fnic->in_flight);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ scsi_host_busy_iter(fnic->host, fnic_rport_abort_io_iter,
&iter_data);
+
if (iter_data.term_cnt > atomic64_read(&term_stats->max_terminates))
atomic64_set(&term_stats->max_terminates, iter_data.term_cnt);
+ atomic_dec(&fnic->in_flight);
+
+ while ((io_count = fnic_count_ioreqs(fnic, port_id)))
+ schedule_timeout(msecs_to_jiffies(1000));
+
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "rport: 0x%x remaining portid-io-count: %d ",
+ port_id, io_count);
}
void fnic_terminate_rport_io(struct fc_rport *rport)
{
- struct fc_rport_libfc_priv *rdata;
- struct fc_lport *lport;
- struct fnic *fnic;
+ struct fnic_tport_s *tport;
+ struct rport_dd_data_s *rdd_data;
+ struct fnic_iport_s *iport = NULL;
+ struct fnic *fnic = NULL;
if (!rport) {
- printk(KERN_ERR "fnic_terminate_rport_io: rport is NULL\n");
+ pr_err("rport is NULL\n");
return;
}
- rdata = rport->dd_data;
- if (!rdata) {
- printk(KERN_ERR "fnic_terminate_rport_io: rdata is NULL\n");
- return;
+ rdd_data = rport->dd_data;
+ if (rdd_data) {
+ tport = rdd_data->tport;
+ if (!tport) {
+ pr_err(
+ "term rport io called after tport is deleted. Returning 0x%8x\n",
+ rport->port_id);
+ } else {
+ pr_err(
+ "term rport io called after tport is set 0x%8x\n",
+ rport->port_id);
+ pr_err(
+ "tport maybe rediscovered\n");
+
+ iport = (struct fnic_iport_s *) tport->iport;
+ fnic = iport->fnic;
+ fnic_rport_exch_reset(fnic, rport->port_id);
+ }
}
- lport = rdata->local_port;
+}
- if (!lport) {
- printk(KERN_ERR "fnic_terminate_rport_io: lport is NULL\n");
- return;
- }
- fnic = lport_priv(lport);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "wwpn 0x%llx, wwnn0x%llx, rport 0x%p, portid 0x%06x\n",
- rport->port_name, rport->node_name, rport,
- rport->port_id);
+/*
+ * FCP-SCSI specific handling for module unload
+ *
+ */
+void fnic_scsi_unload(struct fnic *fnic)
+{
+ unsigned long flags;
- if (fnic->in_remove)
- return;
+ /*
+ * Mark state so that the workqueue thread stops forwarding
+ * received frames and link events to the local port. ISR and
+ * other threads that can queue work items will also stop
+ * creating work items on the fnic workqueue
+ */
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ fnic->iport.state = FNIC_IPORT_STATE_LINK_WAIT;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ if (fdls_get_state(&fnic->iport.fabric) != FDLS_STATE_INIT)
+ fnic_scsi_fcpio_reset(fnic);
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ fnic->in_remove = 1;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ fnic_flush_tport_event_list(fnic);
+ fnic_delete_fcp_tports(fnic);
+}
- fnic_rport_exch_reset(fnic, rport->port_id);
+void fnic_scsi_unload_cleanup(struct fnic *fnic)
+{
+ int hwq = 0;
+
+ fc_remove_host(fnic->host);
+ scsi_remove_host(fnic->host);
+ for (hwq = 0; hwq < fnic->wq_copy_count; hwq++)
+ kfree(fnic->sw_copy_wq[hwq].io_req_table);
}
/*
@@ -1783,10 +2002,12 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
int fnic_abort_cmd(struct scsi_cmnd *sc)
{
struct request *const rq = scsi_cmd_to_rq(sc);
- struct fc_lport *lp;
+ struct fnic_iport_s *iport;
+ struct fnic_tport_s *tport;
struct fnic *fnic;
struct fnic_io_req *io_req = NULL;
struct fc_rport *rport;
+ struct rport_dd_data_s *rdd_data;
unsigned long flags;
unsigned long start_time = 0;
int ret = SUCCESS;
@@ -1806,11 +2027,11 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
fc_block_scsi_eh(sc);
/* Get local-port, check ready and link up */
- lp = shost_priv(sc->device->host);
-
- fnic = lport_priv(lp);
+ fnic = *((struct fnic **) shost_priv(sc->device->host));
spin_lock_irqsave(&fnic->fnic_lock, flags);
+ iport = &fnic->iport;
+
fnic_stats = &fnic->fnic_stats;
abts_stats = &fnic->fnic_stats.abts_stats;
term_stats = &fnic->fnic_stats.term_stats;
@@ -1821,7 +2042,44 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
fnic_priv(sc)->flags = FNIC_NO_FLAGS;
- if (lp->state != LPORT_ST_READY || !(lp->link_up)) {
+ rdd_data = rport->dd_data;
+ tport = rdd_data->tport;
+
+ if (!tport) {
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Abort cmd called after tport delete! rport fcid: 0x%x",
+ rport->port_id);
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "lun: %llu hwq: 0x%x mqtag: 0x%x Op: 0x%x flags: 0x%x\n",
+ sc->device->lun, hwq, mqtag,
+ sc->cmnd[0], fnic_priv(sc)->flags);
+ ret = FAILED;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ goto fnic_abort_cmd_end;
+ }
+
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Abort cmd called rport fcid: 0x%x lun: %llu hwq: 0x%x mqtag: 0x%x",
+ rport->port_id, sc->device->lun, hwq, mqtag);
+
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Op: 0x%x flags: 0x%x\n",
+ sc->cmnd[0],
+ fnic_priv(sc)->flags);
+
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ atomic64_inc(&fnic_stats->misc_stats.iport_not_ready);
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport NOT in READY state");
+ ret = FAILED;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ goto fnic_abort_cmd_end;
+ }
+
+ if ((tport->state != FDLS_TGT_STATE_READY) &&
+ (tport->state != FDLS_TGT_STATE_ADISC)) {
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "tport state: %d\n", tport->state);
ret = FAILED;
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
goto fnic_abort_cmd_end;
@@ -1843,6 +2101,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
io_req = fnic_priv(sc)->io_req;
if (!io_req) {
+ ret = FAILED;
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
goto fnic_abort_cmd_end;
}
@@ -1870,7 +2129,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
else
atomic64_inc(&abts_stats->abort_issued_greater_than_60_sec);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"CDB Opcode: 0x%02x Abort issued time: %lu msec\n",
sc->cmnd[0], abt_issued_time);
/*
@@ -1893,7 +2152,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
if (fc_remote_port_chkready(rport) == 0)
task_req = FCPIO_ITMF_ABT_TASK;
else {
- atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
+ atomic64_inc(&fnic_stats->misc_stats.tport_not_ready);
task_req = FCPIO_ITMF_ABT_TASK_TERM;
}
@@ -1961,7 +2220,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
if (!(fnic_priv(sc)->flags & (FNIC_IO_ABORTED | FNIC_IO_DONE))) {
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"Issuing host reset due to out of order IO\n");
ret = FAILED;
@@ -2009,7 +2268,7 @@ fnic_abort_cmd_end:
(u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
fnic_flags_and_state(sc));
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Returning from abort cmd type %x %s\n", task_req,
(ret == SUCCESS) ?
"SUCCESS" : "FAILED");
@@ -2027,6 +2286,7 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
unsigned long flags;
uint16_t hwq = 0;
uint32_t tag = 0;
+ struct fnic_tport_s *tport = io_req->tport;
tag = io_req->tag;
hwq = blk_mq_unique_tag_to_hwq(tag);
@@ -2037,8 +2297,10 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
FNIC_FLAGS_IO_BLOCKED))) {
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
return FAILED;
- } else
+ } else {
atomic_inc(&fnic->in_flight);
+ atomic_inc(&tport->in_flight);
+ }
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
@@ -2047,7 +2309,7 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
free_wq_copy_descs(fnic, wq, hwq);
if (!vnic_wq_copy_desc_avail(wq)) {
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"queue_dr_io_req failure - no descriptors\n");
atomic64_inc(&misc_stats->devrst_cpwq_alloc_failures);
ret = -EAGAIN;
@@ -2072,6 +2334,7 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
lr_io_req_end:
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
atomic_dec(&fnic->in_flight);
+ atomic_dec(&tport->in_flight);
return ret;
}
@@ -2114,7 +2377,7 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, void *data)
* Found IO that is still pending with firmware and
* belongs to the LUN that we are resetting
*/
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Found IO in %s on lun\n",
fnic_ioreq_state_to_str(fnic_priv(sc)->state));
@@ -2124,14 +2387,14 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, void *data)
}
if ((fnic_priv(sc)->flags & FNIC_DEVICE_RESET) &&
(!(fnic_priv(sc)->flags & FNIC_DEV_RST_ISSUED))) {
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"dev rst not pending sc 0x%p\n", sc);
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
return true;
}
if (io_req->abts_done)
- shost_printk(KERN_ERR, fnic->lport->host,
+ shost_printk(KERN_ERR, fnic->host,
"%s: io_req->abts_done is set state is %s\n",
__func__, fnic_ioreq_state_to_str(fnic_priv(sc)->state));
old_ioreq_state = fnic_priv(sc)->state;
@@ -2147,7 +2410,7 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, void *data)
BUG_ON(io_req->abts_done);
if (fnic_priv(sc)->flags & FNIC_DEVICE_RESET) {
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"dev rst sc 0x%p\n", sc);
}
@@ -2169,7 +2432,7 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, void *data)
fnic_priv(sc)->state = old_ioreq_state;
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
iter_data->ret = FAILED;
- FNIC_SCSI_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
"hwq: %d abt_tag: 0x%lx Abort could not be queued\n",
hwq, abt_tag);
return false;
@@ -2248,7 +2511,7 @@ static int fnic_clean_pending_aborts(struct fnic *fnic,
iter_data.lr_sc = lr_sc;
- scsi_host_busy_iter(fnic->lport->host,
+ scsi_host_busy_iter(fnic->host,
fnic_pending_aborts_iter, &iter_data);
if (iter_data.ret == FAILED) {
ret = iter_data.ret;
@@ -2261,7 +2524,7 @@ static int fnic_clean_pending_aborts(struct fnic *fnic,
ret = 1;
clean_pending_aborts_end:
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"exit status: %d\n", ret);
return ret;
}
@@ -2274,11 +2537,11 @@ clean_pending_aborts_end:
int fnic_device_reset(struct scsi_cmnd *sc)
{
struct request *rq = scsi_cmd_to_rq(sc);
- struct fc_lport *lp;
struct fnic *fnic;
struct fnic_io_req *io_req = NULL;
struct fc_rport *rport;
int status;
+ int count = 0;
int ret = FAILED;
unsigned long flags;
unsigned long start_time = 0;
@@ -2289,31 +2552,63 @@ int fnic_device_reset(struct scsi_cmnd *sc)
DECLARE_COMPLETION_ONSTACK(tm_done);
bool new_sc = 0;
uint16_t hwq = 0;
+ struct fnic_iport_s *iport = NULL;
+ struct rport_dd_data_s *rdd_data;
+ struct fnic_tport_s *tport;
+ u32 old_soft_reset_count;
+ u32 old_link_down_cnt;
+ int exit_dr = 0;
/* Wait for rport to unblock */
fc_block_scsi_eh(sc);
/* Get local-port, check ready and link up */
- lp = shost_priv(sc->device->host);
+ fnic = *((struct fnic **) shost_priv(sc->device->host));
+ iport = &fnic->iport;
- fnic = lport_priv(lp);
fnic_stats = &fnic->fnic_stats;
- reset_stats = &fnic->fnic_stats.reset_stats;
+ reset_stats = &fnic_stats->reset_stats;
atomic64_inc(&reset_stats->device_resets);
rport = starget_to_rport(scsi_target(sc->device));
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fcid: 0x%x lun: 0x%llx hwq: %d mqtag: 0x%x flags: 0x%x Device reset\n",
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "fcid: 0x%x lun: %llu hwq: %d mqtag: 0x%x flags: 0x%x Device reset\n",
rport->port_id, sc->device->lun, hwq, mqtag,
fnic_priv(sc)->flags);
- if (lp->state != LPORT_ST_READY || !(lp->link_up))
+ rdd_data = rport->dd_data;
+ tport = rdd_data->tport;
+ if (!tport) {
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Dev rst called after tport delete! rport fcid: 0x%x lun: %llu\n",
+ rport->port_id, sc->device->lun);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ goto fnic_device_reset_end;
+ }
+
+ if (iport->state != FNIC_IPORT_STATE_READY) {
+ atomic64_inc(&fnic_stats->misc_stats.iport_not_ready);
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "iport NOT in READY state");
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ goto fnic_device_reset_end;
+ }
+
+ if ((tport->state != FDLS_TGT_STATE_READY) &&
+ (tport->state != FDLS_TGT_STATE_ADISC)) {
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "tport state: %d\n", tport->state);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
goto fnic_device_reset_end;
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
/* Check if remote port up */
if (fc_remote_port_chkready(rport)) {
- atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
+ atomic64_inc(&fnic_stats->misc_stats.tport_not_ready);
goto fnic_device_reset_end;
}
@@ -2352,6 +2647,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
io_req->port_id = rport->port_id;
io_req->tag = mqtag;
fnic_priv(sc)->io_req = io_req;
+ io_req->tport = tport;
io_req->sc = sc;
if (fnic->sw_copy_wq[hwq].io_req_table[blk_mq_unique_tag_to_tag(mqtag)] != NULL)
@@ -2366,7 +2662,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
fnic_priv(sc)->lr_status = FCPIO_INVALID_CODE;
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num, "TAG %x\n", mqtag);
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num, "TAG %x\n", mqtag);
/*
* issue the device reset, if enqueue failed, clean up the ioreq
@@ -2383,6 +2679,11 @@ int fnic_device_reset(struct scsi_cmnd *sc)
fnic_priv(sc)->flags |= FNIC_DEV_RST_ISSUED;
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ old_link_down_cnt = iport->fnic->link_down_cnt;
+ old_soft_reset_count = fnic->soft_reset_count;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
/*
* Wait on the local completion for LUN reset. The io_req may be
* freed while we wait since we hold no lock.
@@ -2390,14 +2691,39 @@ int fnic_device_reset(struct scsi_cmnd *sc)
wait_for_completion_timeout(&tm_done,
msecs_to_jiffies(FNIC_LUN_RESET_TIMEOUT));
+ /*
+ * Wake up can be due to the following reasons:
+ * 1) The device reset completed from target.
+ * 2) Device reset timed out.
+ * 3) A link-down/host_reset may have happened in between.
+ * 4) The device reset was aborted and io_req->dr_done was called.
+ */
+
+ exit_dr = 0;
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if ((old_link_down_cnt != fnic->link_down_cnt) ||
+ (fnic->reset_in_progress) ||
+ (fnic->soft_reset_count != old_soft_reset_count) ||
+ (iport->state != FNIC_IPORT_STATE_READY))
+ exit_dr = 1;
+
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
io_req = fnic_priv(sc)->io_req;
if (!io_req) {
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"io_req is null mqtag 0x%x sc 0x%p\n", mqtag, sc);
goto fnic_device_reset_end;
}
+
+ if (exit_dr) {
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Host reset called for fnic. Exit device reset\n");
+ io_req->dr_done = NULL;
+ goto fnic_device_reset_clean;
+ }
io_req->dr_done = NULL;
status = fnic_priv(sc)->lr_status;
@@ -2408,53 +2734,11 @@ int fnic_device_reset(struct scsi_cmnd *sc)
*/
if (status == FCPIO_INVALID_CODE) {
atomic64_inc(&reset_stats->device_reset_timeouts);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Device reset timed out\n");
fnic_priv(sc)->flags |= FNIC_DEV_RST_TIMED_OUT;
- spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
int_to_scsilun(sc->device->lun, &fc_lun);
- /*
- * Issue abort and terminate on device reset request.
- * If q'ing of terminate fails, retry it after a delay.
- */
- while (1) {
- spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
- if (fnic_priv(sc)->flags & FNIC_DEV_RST_TERM_ISSUED) {
- spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- break;
- }
- spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- if (fnic_queue_abort_io_req(fnic,
- mqtag | FNIC_TAG_DEV_RST,
- FCPIO_ITMF_ABT_TASK_TERM,
- fc_lun.scsi_lun, io_req, hwq)) {
- wait_for_completion_timeout(&tm_done,
- msecs_to_jiffies(FNIC_ABT_TERM_DELAY_TIMEOUT));
- } else {
- spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
- fnic_priv(sc)->flags |= FNIC_DEV_RST_TERM_ISSUED;
- fnic_priv(sc)->state = FNIC_IOREQ_ABTS_PENDING;
- io_req->abts_done = &tm_done;
- spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Abort and terminate issued on Device reset mqtag 0x%x sc 0x%p\n",
- mqtag, sc);
- break;
- }
- }
- while (1) {
- spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
- if (!(fnic_priv(sc)->flags & FNIC_DEV_RST_DONE)) {
- spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
- wait_for_completion_timeout(&tm_done,
- msecs_to_jiffies(FNIC_LUN_RESET_TIMEOUT));
- break;
- } else {
- io_req = fnic_priv(sc)->io_req;
- io_req->abts_done = NULL;
- goto fnic_device_reset_clean;
- }
- }
+ goto fnic_device_reset_clean;
} else {
spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
}
@@ -2463,7 +2747,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
if (status != FCPIO_SUCCESS) {
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
FNIC_SCSI_DBG(KERN_DEBUG,
- fnic->lport->host, fnic->fnic_num,
+ fnic->host, fnic->fnic_num,
"Device reset completed - failed\n");
io_req = fnic_priv(sc)->io_req;
goto fnic_device_reset_clean;
@@ -2479,9 +2763,8 @@ int fnic_device_reset(struct scsi_cmnd *sc)
if (fnic_clean_pending_aborts(fnic, sc, new_sc)) {
spin_lock_irqsave(&fnic->wq_copy_lock[hwq], flags);
io_req = fnic_priv(sc)->io_req;
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Device reset failed"
- " since could not abort all IOs\n");
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
+ "Device reset failed: Cannot abort all IOs\n");
goto fnic_device_reset_clean;
}
@@ -2507,6 +2790,15 @@ fnic_device_reset_clean:
mempool_free(io_req, fnic->io_req_pool);
}
+ /*
+ * If link-event is seen while LUN reset is issued we need
+ * to complete the LUN reset here
+ */
+ if (!new_sc) {
+ sc->result = DID_RESET << 16;
+ scsi_done(sc);
+ }
+
fnic_device_reset_end:
FNIC_TRACE(fnic_device_reset, sc->device->host->host_no, rq->tag, sc,
jiffies_to_msecs(jiffies - start_time),
@@ -2520,7 +2812,18 @@ fnic_device_reset_end:
mutex_unlock(&fnic->sgreset_mutex);
}
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
+ while ((ret == SUCCESS) && fnic_count_lun_ioreqs(fnic, sc->device)) {
+ if (count >= 2) {
+ ret = FAILED;
+ break;
+ }
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "Cannot clean up all IOs for the LUN\n");
+ schedule_timeout(msecs_to_jiffies(1000));
+ count++;
+ }
+
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
"Returning from device reset %s\n",
(ret == SUCCESS) ?
"SUCCESS" : "FAILED");
@@ -2531,67 +2834,78 @@ fnic_device_reset_end:
return ret;
}
-/* Clean up all IOs, clean up libFC local port */
-int fnic_reset(struct Scsi_Host *shost)
+static void fnic_post_flogo_linkflap(struct fnic *fnic)
+{
+ unsigned long flags;
+
+ fnic_fdls_link_status_change(fnic, 0);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+
+ if (fnic->link_status) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ fnic_fdls_link_status_change(fnic, 1);
+ return;
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+}
+
+/* Logout from all the targets and simulate link flap */
+void fnic_reset(struct Scsi_Host *shost)
{
- struct fc_lport *lp;
struct fnic *fnic;
- int ret = 0;
struct reset_stats *reset_stats;
- lp = shost_priv(shost);
- fnic = lport_priv(lp);
+ fnic = *((struct fnic **) shost_priv(shost));
reset_stats = &fnic->fnic_stats.reset_stats;
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Issuing fnic reset\n");
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Issuing fnic reset\n");
atomic64_inc(&reset_stats->fnic_resets);
+ fnic_post_flogo_linkflap(fnic);
- /*
- * Reset local port, this will clean up libFC exchanges,
- * reset remote port sessions, and if link is up, begin flogi
- */
- ret = fc_lport_reset(lp);
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Returning from fnic reset");
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Returning from fnic reset with: %s\n",
- (ret == 0) ? "SUCCESS" : "FAILED");
+ atomic64_inc(&reset_stats->fnic_reset_completions);
+}
- if (ret == 0)
- atomic64_inc(&reset_stats->fnic_reset_completions);
- else
- atomic64_inc(&reset_stats->fnic_reset_failures);
+int fnic_issue_fc_host_lip(struct Scsi_Host *shost)
+{
+ int ret = 0;
+ struct fnic *fnic = *((struct fnic **) shost_priv(shost));
+
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FC host lip issued");
+ ret = fnic_host_reset(shost);
return ret;
}
-/*
- * SCSI Error handling calls driver's eh_host_reset if all prior
- * error handling levels return FAILED. If host reset completes
- * successfully, and if link is up, then Fabric login begins.
- *
- * Host Reset is the highest level of error recovery. If this fails, then
- * host is offlined by SCSI.
- *
- */
-int fnic_host_reset(struct scsi_cmnd *sc)
+int fnic_host_reset(struct Scsi_Host *shost)
{
- int ret;
+ int ret = SUCCESS;
unsigned long wait_host_tmo;
- struct Scsi_Host *shost = sc->device->host;
- struct fc_lport *lp = shost_priv(shost);
- struct fnic *fnic = lport_priv(lp);
+ struct fnic *fnic = *((struct fnic **) shost_priv(shost));
unsigned long flags;
+ struct fnic_iport_s *iport = &fnic->iport;
spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (!fnic->internal_reset_inprogress) {
- fnic->internal_reset_inprogress = true;
+ if (fnic->reset_in_progress == NOT_IN_PROGRESS) {
+ fnic->reset_in_progress = IN_PROGRESS;
} else {
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "host reset in progress skipping another host reset\n");
- return SUCCESS;
+ wait_for_completion_timeout(&fnic->reset_completion_wait,
+ msecs_to_jiffies(10000));
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if (fnic->reset_in_progress == IN_PROGRESS) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_WARNING, fnic->host, fnic->fnic_num,
+ "Firmware reset in progress. Skipping another host reset\n");
+ return SUCCESS;
+ }
+ fnic->reset_in_progress = IN_PROGRESS;
}
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
@@ -2600,140 +2914,34 @@ int fnic_host_reset(struct scsi_cmnd *sc)
* scsi-ml tries to send a TUR to every device if host reset is
* successful, so before returning to scsi, fabric should be up
*/
- ret = (fnic_reset(shost) == 0) ? SUCCESS : FAILED;
- if (ret == SUCCESS) {
+ fnic_reset(shost);
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ fnic->reset_in_progress = NOT_IN_PROGRESS;
+ complete(&fnic->reset_completion_wait);
+ fnic->soft_reset_count++;
+
+ /* wait till the link is up */
+ if (fnic->link_status) {
wait_host_tmo = jiffies + FNIC_HOST_RESET_SETTLE_TIME * HZ;
ret = FAILED;
while (time_before(jiffies, wait_host_tmo)) {
- if ((lp->state == LPORT_ST_READY) &&
- (lp->link_up)) {
+ if (iport->state != FNIC_IPORT_STATE_READY
+ && fnic->link_status) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ ssleep(1);
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ } else {
ret = SUCCESS;
break;
}
- ssleep(1);
}
}
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- fnic->internal_reset_inprogress = false;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return ret;
-}
-
-/*
- * This fxn is called from libFC when host is removed
- */
-void fnic_scsi_abort_io(struct fc_lport *lp)
-{
- int err = 0;
- unsigned long flags;
- enum fnic_state old_state;
- struct fnic *fnic = lport_priv(lp);
- DECLARE_COMPLETION_ONSTACK(remove_wait);
-
- /* Issue firmware reset for fnic, wait for reset to complete */
-retry_fw_reset:
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (unlikely(fnic->state == FNIC_IN_FC_TRANS_ETH_MODE) &&
- fnic->link_events) {
- /* fw reset is in progress, poll for its completion */
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- schedule_timeout(msecs_to_jiffies(100));
- goto retry_fw_reset;
- }
-
- fnic->remove_wait = &remove_wait;
- old_state = fnic->state;
- fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
- fnic_update_mac_locked(fnic, fnic->ctlr.ctl_src_addr);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- err = fnic_fw_reset_handler(fnic);
- if (err) {
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->state == FNIC_IN_FC_TRANS_ETH_MODE)
- fnic->state = old_state;
- fnic->remove_wait = NULL;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
-
- /* Wait for firmware reset to complete */
- wait_for_completion_timeout(&remove_wait,
- msecs_to_jiffies(FNIC_RMDEVICE_TIMEOUT));
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- fnic->remove_wait = NULL;
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fnic_scsi_abort_io %s\n",
- (fnic->state == FNIC_IN_ETH_MODE) ?
- "SUCCESS" : "FAILED");
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-
-}
-
-/*
- * This fxn called from libFC to clean up driver IO state on link down
- */
-void fnic_scsi_cleanup(struct fc_lport *lp)
-{
- unsigned long flags;
- enum fnic_state old_state;
- struct fnic *fnic = lport_priv(lp);
-
- /* issue fw reset */
-retry_fw_reset:
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (unlikely(fnic->state == FNIC_IN_FC_TRANS_ETH_MODE)) {
- /* fw reset is in progress, poll for its completion */
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- schedule_timeout(msecs_to_jiffies(100));
- goto retry_fw_reset;
- }
- old_state = fnic->state;
- fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
- fnic_update_mac_locked(fnic, fnic->ctlr.ctl_src_addr);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-
- if (fnic_fw_reset_handler(fnic)) {
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->state == FNIC_IN_FC_TRANS_ETH_MODE)
- fnic->state = old_state;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- }
-
-}
-
-void fnic_empty_scsi_cleanup(struct fc_lport *lp)
-{
-}
-
-void fnic_exch_mgr_reset(struct fc_lport *lp, u32 sid, u32 did)
-{
- struct fnic *fnic = lport_priv(lp);
-
- /* Non-zero sid, nothing to do */
- if (sid)
- goto call_fc_exch_mgr_reset;
-
- if (did) {
- fnic_rport_exch_reset(fnic, did);
- goto call_fc_exch_mgr_reset;
- }
-
- /*
- * sid = 0, did = 0
- * link down or device being removed
- */
- if (!fnic->in_remove)
- fnic_scsi_cleanup(lp);
- else
- fnic_scsi_abort_io(lp);
-
- /* call libFC exch mgr reset to reset its exchanges */
-call_fc_exch_mgr_reset:
- fc_exch_mgr_reset(lp, sid, did);
-
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "host reset return status: %d\n", ret);
+ return ret;
}
static bool fnic_abts_pending_iter(struct scsi_cmnd *sc, void *data)
@@ -2771,7 +2979,7 @@ static bool fnic_abts_pending_iter(struct scsi_cmnd *sc, void *data)
* Found IO that is still pending with firmware and
* belongs to the LUN that we are resetting
*/
- FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
"hwq: %d tag: 0x%x Found IO in state: %s on lun\n",
hwq, tag,
fnic_ioreq_state_to_str(fnic_priv(sc)->state));
@@ -2804,8 +3012,81 @@ int fnic_is_abts_pending(struct fnic *fnic, struct scsi_cmnd *lr_sc)
}
/* walk again to check, if IOs are still pending in fw */
- scsi_host_busy_iter(fnic->lport->host,
+ scsi_host_busy_iter(fnic->host,
fnic_abts_pending_iter, &iter_data);
return iter_data.ret;
}
+
+/*
+ * SCSI Error handling calls driver's eh_host_reset if all prior
+ * error handling levels return FAILED. If host reset completes
+ * successfully, and if link is up, then Fabric login begins.
+ *
+ * Host Reset is the highest level of error recovery. If this fails, then
+ * host is offlined by SCSI.
+ *
+ */
+int fnic_eh_host_reset_handler(struct scsi_cmnd *sc)
+{
+ int ret = 0;
+ struct Scsi_Host *shost = sc->device->host;
+ struct fnic *fnic = *((struct fnic **) shost_priv(shost));
+
+ FNIC_SCSI_DBG(KERN_ERR, fnic->host, fnic->fnic_num,
+ "SCSI error handling: fnic host reset");
+
+ ret = fnic_host_reset(shost);
+ return ret;
+}
+
+
+void fnic_scsi_fcpio_reset(struct fnic *fnic)
+{
+ unsigned long flags;
+ enum fnic_state old_state;
+ struct fnic_iport_s *iport = &fnic->iport;
+ DECLARE_COMPLETION_ONSTACK(fw_reset_done);
+ int time_remain;
+
+ /* issue fw reset */
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if (unlikely(fnic->state == FNIC_IN_FC_TRANS_ETH_MODE)) {
+ /* fw reset is in progress, poll for its completion */
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "fnic is in unexpected state: %d for fw_reset\n",
+ fnic->state);
+ return;
+ }
+
+ old_state = fnic->state;
+ fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
+
+ fnic_update_mac_locked(fnic, iport->hwmac);
+ fnic->fw_reset_done = &fw_reset_done;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Issuing fw reset\n");
+ if (fnic_fw_reset_handler(fnic)) {
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ if (fnic->state == FNIC_IN_FC_TRANS_ETH_MODE)
+ fnic->state = old_state;
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ } else {
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Waiting for fw completion\n");
+ time_remain = wait_for_completion_timeout(&fw_reset_done,
+ msecs_to_jiffies(FNIC_FW_RESET_TIMEOUT));
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "Woken up after fw completion timeout\n");
+ if (time_remain == 0) {
+ FNIC_SCSI_DBG(KERN_INFO, fnic->host, fnic->fnic_num,
+ "FW reset completion timed out after %d ms)\n",
+ FNIC_FW_RESET_TIMEOUT);
+ }
+ atomic64_inc(&fnic->fnic_stats.reset_stats.fw_reset_timeouts);
+ }
+ fnic->fw_reset_done = NULL;
+}
diff --git a/drivers/scsi/fnic/fnic_stats.h b/drivers/scsi/fnic/fnic_stats.h
index 9d7f98c452dd..8ddd20401a59 100644
--- a/drivers/scsi/fnic/fnic_stats.h
+++ b/drivers/scsi/fnic/fnic_stats.h
@@ -3,6 +3,7 @@
#ifndef _FNIC_STATS_H_
#define _FNIC_STATS_H_
#define FNIC_MQ_MAX_QUEUES 64
+#include <scsi/scsi_transport_fc.h>
struct stats_timestamps {
struct timespec64 last_reset_time;
@@ -63,6 +64,7 @@ struct reset_stats {
atomic64_t fw_resets;
atomic64_t fw_reset_completions;
atomic64_t fw_reset_failures;
+ atomic64_t fw_reset_timeouts;
atomic64_t fnic_resets;
atomic64_t fnic_reset_completions;
atomic64_t fnic_reset_failures;
@@ -102,10 +104,51 @@ struct misc_stats {
atomic64_t no_icmnd_itmf_cmpls;
atomic64_t check_condition;
atomic64_t queue_fulls;
- atomic64_t rport_not_ready;
+ atomic64_t tport_not_ready;
+ atomic64_t iport_not_ready;
atomic64_t frame_errors;
atomic64_t current_port_speed;
atomic64_t intx_dummy;
+ atomic64_t port_speed_in_mbps;
+};
+
+struct fnic_iport_stats {
+ atomic64_t num_linkdn;
+ atomic64_t num_linkup;
+ atomic64_t link_failure_count;
+ atomic64_t num_rscns;
+ atomic64_t rscn_redisc;
+ atomic64_t rscn_not_redisc;
+ atomic64_t frame_err;
+ atomic64_t num_rnid;
+ atomic64_t fabric_flogi_sent;
+ atomic64_t fabric_flogi_ls_accepts;
+ atomic64_t fabric_flogi_ls_rejects;
+ atomic64_t fabric_flogi_misc_rejects;
+ atomic64_t fabric_plogi_sent;
+ atomic64_t fabric_plogi_ls_accepts;
+ atomic64_t fabric_plogi_ls_rejects;
+ atomic64_t fabric_plogi_misc_rejects;
+ atomic64_t fabric_scr_sent;
+ atomic64_t fabric_scr_ls_accepts;
+ atomic64_t fabric_scr_ls_rejects;
+ atomic64_t fabric_scr_misc_rejects;
+ atomic64_t fabric_logo_sent;
+ atomic64_t tport_alive;
+ atomic64_t tport_plogi_sent;
+ atomic64_t tport_plogi_ls_accepts;
+ atomic64_t tport_plogi_ls_rejects;
+ atomic64_t tport_plogi_misc_rejects;
+ atomic64_t tport_prli_sent;
+ atomic64_t tport_prli_ls_accepts;
+ atomic64_t tport_prli_ls_rejects;
+ atomic64_t tport_prli_misc_rejects;
+ atomic64_t tport_adisc_sent;
+ atomic64_t tport_adisc_ls_accepts;
+ atomic64_t tport_adisc_ls_rejects;
+ atomic64_t tport_logo_sent;
+ atomic64_t unsupported_frames_ls_rejects;
+ atomic64_t unsupported_frames_dropped;
};
struct fnic_stats {
@@ -116,6 +159,7 @@ struct fnic_stats {
struct reset_stats reset_stats;
struct fw_stats fw_stats;
struct vlan_stats vlan_stats;
+ struct fc_host_statistics host_stats;
struct misc_stats misc_stats;
};
@@ -127,6 +171,5 @@ struct stats_debug_info {
};
int fnic_get_stats_data(struct stats_debug_info *, struct fnic_stats *);
-void fnic_stats_debugfs_init(struct fnic *);
-void fnic_stats_debugfs_remove(struct fnic *);
+const char *fnic_role_to_str(unsigned int role);
#endif /* _FNIC_STATS_H_ */
diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c
index aaa4ea02fb7c..cdc6b12b1ec2 100644
--- a/drivers/scsi/fnic/fnic_trace.c
+++ b/drivers/scsi/fnic/fnic_trace.c
@@ -8,6 +8,7 @@
#include <linux/kallsyms.h>
#include <linux/time.h>
#include <linux/vmalloc.h>
+#include <scsi/scsi_transport_fc.h>
#include "fnic_io.h"
#include "fnic.h"
@@ -29,6 +30,17 @@ int fnic_fc_tracing_enabled = 1;
int fnic_fc_trace_cleared = 1;
static DEFINE_SPINLOCK(fnic_fc_trace_lock);
+static const char * const fnic_role_str[] = {
+ [FNIC_ROLE_FCP_INITIATOR] = "FCP_Initiator",
+};
+
+const char *fnic_role_to_str(unsigned int role)
+{
+ if (role >= ARRAY_SIZE(fnic_role_str) || !fnic_role_str[role])
+ return "Unknown";
+
+ return fnic_role_str[role];
+}
/*
* fnic_trace_get_buf - Give buffer pointer to user to fill up trace information
@@ -423,7 +435,8 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
"Number of Check Conditions encountered: %lld\n"
"Number of QUEUE Fulls: %lld\n"
"Number of rport not ready: %lld\n"
- "Number of receive frame errors: %lld\n",
+ "Number of receive frame errors: %lld\n"
+ "Port speed (in Mbps): %lld\n",
(u64)stats->misc_stats.last_isr_time,
(s64)val1.tv_sec, val1.tv_nsec,
(u64)stats->misc_stats.last_ack_time,
@@ -446,18 +459,68 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
(u64)atomic64_read(&stats->misc_stats.no_icmnd_itmf_cmpls),
(u64)atomic64_read(&stats->misc_stats.check_condition),
(u64)atomic64_read(&stats->misc_stats.queue_fulls),
- (u64)atomic64_read(&stats->misc_stats.rport_not_ready),
- (u64)atomic64_read(&stats->misc_stats.frame_errors));
-
- len += scnprintf(debug->debug_buffer + len, buf_size - len,
- "Firmware reported port speed: %llu\n",
- (u64)atomic64_read(
- &stats->misc_stats.current_port_speed));
+ (u64)atomic64_read(&stats->misc_stats.tport_not_ready),
+ (u64)atomic64_read(&stats->misc_stats.frame_errors),
+ (u64)atomic64_read(&stats->misc_stats.port_speed_in_mbps));
return len;
}
+int fnic_get_debug_info(struct stats_debug_info *info, struct fnic *fnic)
+{
+ struct fnic_iport_s *iport = &fnic->iport;
+ int buf_size = info->buf_size;
+ int len = info->buffer_len;
+ struct fnic_tport_s *tport, *next;
+ unsigned long flags;
+
+ len += snprintf(info->debug_buffer + len, buf_size - len,
+ "------------------------------------------\n"
+ "\t\t Debug Info\n"
+ "------------------------------------------\n");
+ len += snprintf(info->debug_buffer + len, buf_size - len,
+ "fnic Name:%s number:%d Role:%s State:%s\n",
+ fnic->name, fnic->fnic_num,
+ fnic_role_to_str(fnic->role),
+ fnic_state_to_str(fnic->state));
+ len +=
+ snprintf(info->debug_buffer + len, buf_size - len,
+ "iport State:%d Flags:0x%x vlan_id:%d fcid:0x%x\n",
+ iport->state, iport->flags, iport->vlan_id, iport->fcid);
+ len +=
+ snprintf(info->debug_buffer + len, buf_size - len,
+ "usefip:%d fip_state:%d fip_flogi_retry:%d\n",
+ iport->usefip, iport->fip.state, iport->fip.flogi_retry);
+ len +=
+ snprintf(info->debug_buffer + len, buf_size - len,
+ "fpma %02x:%02x:%02x:%02x:%02x:%02x",
+ iport->fpma[5], iport->fpma[4], iport->fpma[3],
+ iport->fpma[2], iport->fpma[1], iport->fpma[0]);
+ len +=
+ snprintf(info->debug_buffer + len, buf_size - len,
+ "fcfmac %02x:%02x:%02x:%02x:%02x:%02x\n",
+ iport->fcfmac[5], iport->fcfmac[4], iport->fcfmac[3],
+ iport->fcfmac[2], iport->fcfmac[1], iport->fcfmac[0]);
+ len +=
+ snprintf(info->debug_buffer + len, buf_size - len,
+ "fabric state:%d flags:0x%x retry_counter:%d e_d_tov:%d r_a_tov:%d\n",
+ iport->fabric.state, iport->fabric.flags,
+ iport->fabric.retry_counter, iport->e_d_tov,
+ iport->r_a_tov);
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_for_each_entry_safe(tport, next, &iport->tport_list, links) {
+ len += snprintf(info->debug_buffer + len, buf_size - len,
+ "tport fcid:0x%x state:%d flags:0x%x inflight:%d retry_counter:%d\n",
+ tport->fcid, tport->state, tport->flags,
+ atomic_read(&tport->in_flight),
+ tport->retry_counter);
+ }
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ return len;
+}
+
/*
* fnic_trace_buf_init - Initialize fnic trace buffer logging facility
*
@@ -485,8 +548,7 @@ int fnic_trace_buf_init(void)
}
fnic_trace_entries.page_offset =
- vmalloc(array_size(fnic_max_trace_entries,
- sizeof(unsigned long)));
+ vcalloc(fnic_max_trace_entries, sizeof(unsigned long));
if (!fnic_trace_entries.page_offset) {
printk(KERN_ERR PFX "Failed to allocate memory for"
" page_offset\n");
@@ -497,8 +559,6 @@ int fnic_trace_buf_init(void)
err = -ENOMEM;
goto err_fnic_trace_buf_init;
}
- memset((void *)fnic_trace_entries.page_offset, 0,
- (fnic_max_trace_entries * sizeof(unsigned long)));
fnic_trace_entries.wr_idx = fnic_trace_entries.rd_idx = 0;
fnic_buf_head = fnic_trace_buf_p;
@@ -559,8 +619,7 @@ int fnic_fc_trace_init(void)
fc_trace_max_entries = (fnic_fc_trace_max_pages * PAGE_SIZE)/
FC_TRC_SIZE_BYTES;
fnic_fc_ctlr_trace_buf_p =
- (unsigned long)vmalloc(array_size(PAGE_SIZE,
- fnic_fc_trace_max_pages));
+ (unsigned long)vcalloc(fnic_fc_trace_max_pages, PAGE_SIZE);
if (!fnic_fc_ctlr_trace_buf_p) {
pr_err("fnic: Failed to allocate memory for "
"FC Control Trace Buf\n");
@@ -568,13 +627,9 @@ int fnic_fc_trace_init(void)
goto err_fnic_fc_ctlr_trace_buf_init;
}
- memset((void *)fnic_fc_ctlr_trace_buf_p, 0,
- fnic_fc_trace_max_pages * PAGE_SIZE);
-
/* Allocate memory for page offset */
fc_trace_entries.page_offset =
- vmalloc(array_size(fc_trace_max_entries,
- sizeof(unsigned long)));
+ vcalloc(fc_trace_max_entries, sizeof(unsigned long));
if (!fc_trace_entries.page_offset) {
pr_err("fnic:Failed to allocate memory for page_offset\n");
if (fnic_fc_ctlr_trace_buf_p) {
@@ -585,8 +640,6 @@ int fnic_fc_trace_init(void)
err = -ENOMEM;
goto err_fnic_fc_ctlr_trace_buf_init;
}
- memset((void *)fc_trace_entries.page_offset, 0,
- (fc_trace_max_entries * sizeof(unsigned long)));
fc_trace_entries.rd_idx = fc_trace_entries.wr_idx = 0;
fc_trace_buf_head = fnic_fc_ctlr_trace_buf_p;
@@ -688,7 +741,7 @@ int fnic_fc_trace_set_data(u32 host_no, u8 frame_type,
*/
if (frame_type == FNIC_FC_RECV) {
eth_fcoe_hdr_len = sizeof(struct ethhdr) +
- sizeof(struct fcoe_hdr);
+ sizeof(struct fcoe_hdr);
memset((char *)fc_trace, 0xff, eth_fcoe_hdr_len);
/* Copy the rest of data frame */
memcpy((char *)(fc_trace + eth_fcoe_hdr_len), (void *)frame,
generated by cgit (git 2.34.1) at 2025-06-05 22:28:57 +0000