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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) Meta Platforms, Inc. and affiliates. */
#include <linux/debugfs.h>
#include <linux/pci.h>
#include <linux/rtnetlink.h>
#include <linux/seq_file.h>
#include "fbnic.h"
static struct dentry *fbnic_dbg_root;
static void fbnic_dbg_desc_break(struct seq_file *s, int i)
{
while (i--)
seq_putc(s, '-');
seq_putc(s, '\n');
}
static int fbnic_dbg_mac_addr_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
char hdr[80];
int i;
/* Generate Header */
snprintf(hdr, sizeof(hdr), "%3s %s %-17s %s\n",
"Idx", "S", "TCAM Bitmap", "Addr/Mask");
seq_puts(s, hdr);
fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr)));
for (i = 0; i < FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES; i++) {
struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[i];
seq_printf(s, "%02d %d %64pb %pm\n",
i, mac_addr->state, mac_addr->act_tcam,
mac_addr->value.addr8);
seq_printf(s, " %pm\n",
mac_addr->mask.addr8);
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_mac_addr);
static int fbnic_dbg_tce_tcam_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
int i, tcam_idx = 0;
char hdr[80];
/* Generate Header */
snprintf(hdr, sizeof(hdr), "%3s %s %-17s %s\n",
"Idx", "S", "TCAM Bitmap", "Addr/Mask");
seq_puts(s, hdr);
fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr)));
for (i = 0; i < ARRAY_SIZE(fbd->mac_addr); i++) {
struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[i];
/* Verify BMC bit is set */
if (!test_bit(FBNIC_MAC_ADDR_T_BMC, mac_addr->act_tcam))
continue;
if (tcam_idx == FBNIC_TCE_TCAM_NUM_ENTRIES)
break;
seq_printf(s, "%02d %d %64pb %pm\n",
tcam_idx, mac_addr->state, mac_addr->act_tcam,
mac_addr->value.addr8);
seq_printf(s, " %pm\n",
mac_addr->mask.addr8);
tcam_idx++;
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_tce_tcam);
static int fbnic_dbg_act_tcam_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
char hdr[80];
int i;
/* Generate Header */
snprintf(hdr, sizeof(hdr), "%3s %s %-55s %-4s %s\n",
"Idx", "S", "Value/Mask", "RSS", "Dest");
seq_puts(s, hdr);
fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr)));
for (i = 0; i < FBNIC_RPC_TCAM_ACT_NUM_ENTRIES; i++) {
struct fbnic_act_tcam *act_tcam = &fbd->act_tcam[i];
seq_printf(s, "%02d %d %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %08x\n",
i, act_tcam->state,
act_tcam->value.tcam[10], act_tcam->value.tcam[9],
act_tcam->value.tcam[8], act_tcam->value.tcam[7],
act_tcam->value.tcam[6], act_tcam->value.tcam[5],
act_tcam->value.tcam[4], act_tcam->value.tcam[3],
act_tcam->value.tcam[2], act_tcam->value.tcam[1],
act_tcam->value.tcam[0], act_tcam->rss_en_mask,
act_tcam->dest);
seq_printf(s, " %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x\n",
act_tcam->mask.tcam[10], act_tcam->mask.tcam[9],
act_tcam->mask.tcam[8], act_tcam->mask.tcam[7],
act_tcam->mask.tcam[6], act_tcam->mask.tcam[5],
act_tcam->mask.tcam[4], act_tcam->mask.tcam[3],
act_tcam->mask.tcam[2], act_tcam->mask.tcam[1],
act_tcam->mask.tcam[0]);
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_act_tcam);
static int fbnic_dbg_ip_addr_show(struct seq_file *s,
struct fbnic_ip_addr *ip_addr)
{
char hdr[80];
int i;
/* Generate Header */
snprintf(hdr, sizeof(hdr), "%3s %s %-17s %s %s\n",
"Idx", "S", "TCAM Bitmap", "V", "Addr/Mask");
seq_puts(s, hdr);
fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr)));
for (i = 0; i < FBNIC_RPC_TCAM_IP_ADDR_NUM_ENTRIES; i++, ip_addr++) {
seq_printf(s, "%02d %d %64pb %d %pi6\n",
i, ip_addr->state, ip_addr->act_tcam,
ip_addr->version, &ip_addr->value);
seq_printf(s, " %pi6\n",
&ip_addr->mask);
}
return 0;
}
static int fbnic_dbg_ip_src_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
return fbnic_dbg_ip_addr_show(s, fbd->ip_src);
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ip_src);
static int fbnic_dbg_ip_dst_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
return fbnic_dbg_ip_addr_show(s, fbd->ip_dst);
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ip_dst);
static int fbnic_dbg_ipo_src_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
return fbnic_dbg_ip_addr_show(s, fbd->ipo_src);
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ipo_src);
static int fbnic_dbg_ipo_dst_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
return fbnic_dbg_ip_addr_show(s, fbd->ipo_dst);
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ipo_dst);
static int fbnic_dbg_pcie_stats_show(struct seq_file *s, void *v)
{
struct fbnic_dev *fbd = s->private;
rtnl_lock();
fbnic_get_hw_stats(fbd);
seq_printf(s, "ob_rd_tlp: %llu\n", fbd->hw_stats.pcie.ob_rd_tlp.value);
seq_printf(s, "ob_rd_dword: %llu\n",
fbd->hw_stats.pcie.ob_rd_dword.value);
seq_printf(s, "ob_wr_tlp: %llu\n", fbd->hw_stats.pcie.ob_wr_tlp.value);
seq_printf(s, "ob_wr_dword: %llu\n",
fbd->hw_stats.pcie.ob_wr_dword.value);
seq_printf(s, "ob_cpl_tlp: %llu\n",
fbd->hw_stats.pcie.ob_cpl_tlp.value);
seq_printf(s, "ob_cpl_dword: %llu\n",
fbd->hw_stats.pcie.ob_cpl_dword.value);
seq_printf(s, "ob_rd_no_tag: %llu\n",
fbd->hw_stats.pcie.ob_rd_no_tag.value);
seq_printf(s, "ob_rd_no_cpl_cred: %llu\n",
fbd->hw_stats.pcie.ob_rd_no_cpl_cred.value);
seq_printf(s, "ob_rd_no_np_cred: %llu\n",
fbd->hw_stats.pcie.ob_rd_no_np_cred.value);
rtnl_unlock();
return 0;
}
DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_pcie_stats);
void fbnic_dbg_fbd_init(struct fbnic_dev *fbd)
{
struct pci_dev *pdev = to_pci_dev(fbd->dev);
const char *name = pci_name(pdev);
fbd->dbg_fbd = debugfs_create_dir(name, fbnic_dbg_root);
debugfs_create_file("pcie_stats", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_pcie_stats_fops);
debugfs_create_file("mac_addr", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_mac_addr_fops);
debugfs_create_file("tce_tcam", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_tce_tcam_fops);
debugfs_create_file("act_tcam", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_act_tcam_fops);
debugfs_create_file("ip_src", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_ip_src_fops);
debugfs_create_file("ip_dst", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_ip_dst_fops);
debugfs_create_file("ipo_src", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_ipo_src_fops);
debugfs_create_file("ipo_dst", 0400, fbd->dbg_fbd, fbd,
&fbnic_dbg_ipo_dst_fops);
}
void fbnic_dbg_fbd_exit(struct fbnic_dev *fbd)
{
debugfs_remove_recursive(fbd->dbg_fbd);
fbd->dbg_fbd = NULL;
}
void fbnic_dbg_init(void)
{
fbnic_dbg_root = debugfs_create_dir(fbnic_driver_name, NULL);
}
void fbnic_dbg_exit(void)
{
debugfs_remove_recursive(fbnic_dbg_root);
fbnic_dbg_root = NULL;
}
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