Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Reasonably busy this cycle, but perhaps not as busy as in the 4.12
  merge window:

   1) Several optimizations for UDP processing under high load from
      Paolo Abeni.

   2) Support pacing internally in TCP when using the sch_fq packet
      scheduler for this is not practical. From Eric Dumazet.

   3) Support mutliple filter chains per qdisc, from Jiri Pirko.

   4) Move to 1ms TCP timestamp clock, from Eric Dumazet.

   5) Add batch dequeueing to vhost_net, from Jason Wang.

   6) Flesh out more completely SCTP checksum offload support, from
      Davide Caratti.

   7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
      Neira Ayuso, and Matthias Schiffer.

   8) Add devlink support to nfp driver, from Simon Horman.

   9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
      Prabhu.

  10) Add stack depth tracking to BPF verifier and use this information
      in the various eBPF JITs. From Alexei Starovoitov.

  11) Support XDP on qed device VFs, from Yuval Mintz.

  12) Introduce BPF PROG ID for better introspection of installed BPF
      programs. From Martin KaFai Lau.

  13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.

  14) For loads, allow narrower accesses in bpf verifier checking, from
      Yonghong Song.

  15) Support MIPS in the BPF selftests and samples infrastructure, the
      MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
      Daney.

  16) Support kernel based TLS, from Dave Watson and others.

  17) Remove completely DST garbage collection, from Wei Wang.

  18) Allow installing TCP MD5 rules using prefixes, from Ivan
      Delalande.

  19) Add XDP support to Intel i40e driver, from Björn Töpel

  20) Add support for TC flower offload in nfp driver, from Simon
      Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
      Kicinski, and Bert van Leeuwen.

  21) IPSEC offloading support in mlx5, from Ilan Tayari.

  22) Add HW PTP support to macb driver, from Rafal Ozieblo.

  23) Networking refcount_t conversions, From Elena Reshetova.

  24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
      for tuning the TCP sockopt settings of a group of applications,
      currently via CGROUPs"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
  net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
  dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
  cxgb4: Support for get_ts_info ethtool method
  cxgb4: Add PTP Hardware Clock (PHC) support
  cxgb4: time stamping interface for PTP
  nfp: default to chained metadata prepend format
  nfp: remove legacy MAC address lookup
  nfp: improve order of interfaces in breakout mode
  net: macb: remove extraneous return when MACB_EXT_DESC is defined
  bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
  bpf: fix return in load_bpf_file
  mpls: fix rtm policy in mpls_getroute
  net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
  net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
  ...

1 files changed, 71 insertions, 30 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 8f4f176e204e..fc5a490880d0 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -69,6 +69,7 @@
 #include "iwl-debug.h"
 #include "iwl-io.h"
 #include "iwl-prph.h"
+#include "iwl-csr.h"
 #include "fw-dbg.h"
 #include "mvm.h"
 #include "fw-api-rs.h"
@@ -168,11 +169,6 @@ int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
 	}
 
 	pkt = cmd->resp_pkt;
-	/* Can happen if RFKILL is asserted */
-	if (!pkt) {
-		ret = 0;
-		goto out_free_resp;
-	}
 
 	resp_len = iwl_rx_packet_payload_len(pkt);
 	if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
@@ -502,6 +498,7 @@ static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u32 base)
 {
 	struct iwl_trans *trans = mvm->trans;
 	struct iwl_error_event_table table;
+	u32 val;
 
 	if (mvm->cur_ucode == IWL_UCODE_INIT) {
 		if (!base)
@@ -520,6 +517,36 @@ static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u32 base)
 		return;
 	}
 
+	/* check if there is a HW error */
+	val = iwl_trans_read_mem32(trans, base);
+	if (((val & ~0xf) == 0xa5a5a5a0) || ((val & ~0xf) == 0x5a5a5a50)) {
+		int err;
+
+		IWL_ERR(trans, "HW error, resetting before reading\n");
+
+		/* reset the device */
+		iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+		usleep_range(5000, 6000);
+
+		/* set INIT_DONE flag */
+		iwl_set_bit(trans, CSR_GP_CNTRL,
+			    CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+
+		/* and wait for clock stabilization */
+		if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
+			udelay(2);
+
+		err = iwl_poll_bit(trans, CSR_GP_CNTRL,
+				   CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
+				   CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
+				   25000);
+		if (err < 0) {
+			IWL_DEBUG_INFO(trans,
+				       "Failed to reset the card for the dump\n");
+			return;
+		}
+	}
+
 	iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
 
 	if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
@@ -671,7 +698,13 @@ static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue,
 	if (mvm->queue_info[queue].hw_queue_refcount > 0)
 		enable_queue = false;
 
-	mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue);
+	if (mac80211_queue != IEEE80211_INVAL_HW_QUEUE) {
+		WARN(mac80211_queue >=
+		     BITS_PER_BYTE * sizeof(mvm->hw_queue_to_mac80211[0]),
+		     "cannot track mac80211 queue %d (queue %d, sta %d, tid %d)\n",
+		     mac80211_queue, queue, sta_id, tid);
+		mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue);
+	}
 
 	mvm->queue_info[queue].hw_queue_refcount++;
 	mvm->queue_info[queue].tid_bitmap |= BIT(tid);
@@ -730,35 +763,39 @@ int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue,
 	return queue;
 }
 
-void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
+bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
 			u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg,
 			unsigned int wdg_timeout)
 {
+	struct iwl_scd_txq_cfg_cmd cmd = {
+		.scd_queue = queue,
+		.action = SCD_CFG_ENABLE_QUEUE,
+		.window = cfg->frame_limit,
+		.sta_id = cfg->sta_id,
+		.ssn = cpu_to_le16(ssn),
+		.tx_fifo = cfg->fifo,
+		.aggregate = cfg->aggregate,
+		.tid = cfg->tid,
+	};
+	bool inc_ssn;
+
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
-		return;
+		return false;
 
 	/* Send the enabling command if we need to */
-	if (iwl_mvm_update_txq_mapping(mvm, queue, mac80211_queue,
-				       cfg->sta_id, cfg->tid)) {
-		struct iwl_scd_txq_cfg_cmd cmd = {
-			.scd_queue = queue,
-			.action = SCD_CFG_ENABLE_QUEUE,
-			.window = cfg->frame_limit,
-			.sta_id = cfg->sta_id,
-			.ssn = cpu_to_le16(ssn),
-			.tx_fifo = cfg->fifo,
-			.aggregate = cfg->aggregate,
-			.tid = cfg->tid,
-		};
-
-		iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL,
-					 wdg_timeout);
-		WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0,
-					  sizeof(struct iwl_scd_txq_cfg_cmd),
-					  &cmd),
-		     "Failed to configure queue %d on FIFO %d\n", queue,
-		     cfg->fifo);
-	}
+	if (!iwl_mvm_update_txq_mapping(mvm, queue, mac80211_queue,
+					cfg->sta_id, cfg->tid))
+		return false;
+
+	inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn,
+					   NULL, wdg_timeout);
+	if (inc_ssn)
+		le16_add_cpu(&cmd.ssn, 1);
+
+	WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
+	     "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
+
+	return inc_ssn;
 }
 
 int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
@@ -1186,7 +1223,11 @@ static void iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm,
 	/* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */
 	for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
 		/* If some TFDs are still queued - don't mark TID as inactive */
-		if (iwl_mvm_tid_queued(&mvmsta->tid_data[tid]))
+		if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid]))
+			tid_bitmap &= ~BIT(tid);
+
+		/* Don't mark as inactive any TID that has an active BA */
+		if (mvmsta->tid_data[tid].state != IWL_AGG_OFF)
 			tid_bitmap &= ~BIT(tid);
 	}