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

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 113 insertions, 9 deletions

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index eebc860c3655..80cdac15588a 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -21,6 +21,7 @@
 #include "txrx.h"
 #include "debug.h"
 #include "trace.h"
+#include "mac.h"
 
 #include <linux/log2.h>
 
@@ -307,7 +308,8 @@ static void ath10k_htt_rx_free_msdu_chain(struct sk_buff *skb)
 static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
 				   u8 **fw_desc, int *fw_desc_len,
 				   struct sk_buff **head_msdu,
-				   struct sk_buff **tail_msdu)
+				   struct sk_buff **tail_msdu,
+				   u32 *attention)
 {
 	int msdu_len, msdu_chaining = 0;
 	struct sk_buff *msdu;
@@ -357,6 +359,11 @@ static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
 			break;
 		}
 
+		*attention |= __le32_to_cpu(rx_desc->attention.flags) &
+					    (RX_ATTENTION_FLAGS_TKIP_MIC_ERR |
+					     RX_ATTENTION_FLAGS_DECRYPT_ERR |
+					     RX_ATTENTION_FLAGS_FCS_ERR |
+					     RX_ATTENTION_FLAGS_MGMT_TYPE);
 		/*
 		 * Copy the FW rx descriptor for this MSDU from the rx
 		 * indication message into the MSDU's netbuf. HL uses the
@@ -1215,13 +1222,15 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 		for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
 			struct sk_buff *msdu_head, *msdu_tail;
 
+			attention = 0;
 			msdu_head = NULL;
 			msdu_tail = NULL;
 			ret = ath10k_htt_rx_amsdu_pop(htt,
 						      &fw_desc,
 						      &fw_desc_len,
 						      &msdu_head,
-						      &msdu_tail);
+						      &msdu_tail,
+						      &attention);
 
 			if (ret < 0) {
 				ath10k_warn("failed to pop amsdu from htt rx ring %d\n",
@@ -1233,7 +1242,6 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			rxd = container_of((void *)msdu_head->data,
 					   struct htt_rx_desc,
 					   msdu_payload);
-			attention = __le32_to_cpu(rxd->attention.flags);
 
 			if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
 							 status,
@@ -1286,6 +1294,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	u8 *fw_desc;
 	int fw_desc_len, hdrlen, paramlen;
 	int trim;
+	u32 attention = 0;
 
 	fw_desc_len = __le16_to_cpu(frag->fw_rx_desc_bytes);
 	fw_desc = (u8 *)frag->fw_msdu_rx_desc;
@@ -1295,7 +1304,8 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 
 	spin_lock_bh(&htt->rx_ring.lock);
 	ret = ath10k_htt_rx_amsdu_pop(htt, &fw_desc, &fw_desc_len,
-				      &msdu_head, &msdu_tail);
+				      &msdu_head, &msdu_tail,
+				      &attention);
 	spin_unlock_bh(&htt->rx_ring.lock);
 
 	ath10k_dbg(ATH10K_DBG_HTT_DUMP, "htt rx frag ahead\n");
@@ -1312,10 +1322,8 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 
 	hdr = (struct ieee80211_hdr *)msdu_head->data;
 	rxd = (void *)msdu_head->data - sizeof(*rxd);
-	tkip_mic_err = !!(__le32_to_cpu(rxd->attention.flags) &
-				RX_ATTENTION_FLAGS_TKIP_MIC_ERR);
-	decrypt_err = !!(__le32_to_cpu(rxd->attention.flags) &
-				RX_ATTENTION_FLAGS_DECRYPT_ERR);
+	tkip_mic_err = !!(attention & RX_ATTENTION_FLAGS_TKIP_MIC_ERR);
+	decrypt_err = !!(attention & RX_ATTENTION_FLAGS_DECRYPT_ERR);
 	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
 			RX_MSDU_START_INFO1_DECAP_FORMAT);
 
@@ -1422,6 +1430,86 @@ static void ath10k_htt_rx_frm_tx_compl(struct ath10k *ar,
 	}
 }
 
+static void ath10k_htt_rx_addba(struct ath10k *ar, struct htt_resp *resp)
+{
+	struct htt_rx_addba *ev = &resp->rx_addba;
+	struct ath10k_peer *peer;
+	struct ath10k_vif *arvif;
+	u16 info0, tid, peer_id;
+
+	info0 = __le16_to_cpu(ev->info0);
+	tid = MS(info0, HTT_RX_BA_INFO0_TID);
+	peer_id = MS(info0, HTT_RX_BA_INFO0_PEER_ID);
+
+	ath10k_dbg(ATH10K_DBG_HTT,
+		   "htt rx addba tid %hu peer_id %hu size %hhu\n",
+		   tid, peer_id, ev->window_size);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find_by_id(ar, peer_id);
+	if (!peer) {
+		ath10k_warn("received addba event for invalid peer_id: %hu\n",
+			    peer_id);
+		spin_unlock_bh(&ar->data_lock);
+		return;
+	}
+
+	arvif = ath10k_get_arvif(ar, peer->vdev_id);
+	if (!arvif) {
+		ath10k_warn("received addba event for invalid vdev_id: %u\n",
+			    peer->vdev_id);
+		spin_unlock_bh(&ar->data_lock);
+		return;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTT,
+		   "htt rx start rx ba session sta %pM tid %hu size %hhu\n",
+		   peer->addr, tid, ev->window_size);
+
+	ieee80211_start_rx_ba_session_offl(arvif->vif, peer->addr, tid);
+	spin_unlock_bh(&ar->data_lock);
+}
+
+static void ath10k_htt_rx_delba(struct ath10k *ar, struct htt_resp *resp)
+{
+	struct htt_rx_delba *ev = &resp->rx_delba;
+	struct ath10k_peer *peer;
+	struct ath10k_vif *arvif;
+	u16 info0, tid, peer_id;
+
+	info0 = __le16_to_cpu(ev->info0);
+	tid = MS(info0, HTT_RX_BA_INFO0_TID);
+	peer_id = MS(info0, HTT_RX_BA_INFO0_PEER_ID);
+
+	ath10k_dbg(ATH10K_DBG_HTT,
+		   "htt rx delba tid %hu peer_id %hu\n",
+		   tid, peer_id);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find_by_id(ar, peer_id);
+	if (!peer) {
+		ath10k_warn("received addba event for invalid peer_id: %hu\n",
+			    peer_id);
+		spin_unlock_bh(&ar->data_lock);
+		return;
+	}
+
+	arvif = ath10k_get_arvif(ar, peer->vdev_id);
+	if (!arvif) {
+		ath10k_warn("received addba event for invalid vdev_id: %u\n",
+			    peer->vdev_id);
+		spin_unlock_bh(&ar->data_lock);
+		return;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTT,
+		   "htt rx stop rx ba session sta %pM tid %hu\n",
+		   peer->addr, tid);
+
+	ieee80211_stop_rx_ba_session_offl(arvif->vif, peer->addr, tid);
+	spin_unlock_bh(&ar->data_lock);
+}
+
 void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct ath10k_htt *htt = &ar->htt;
@@ -1516,9 +1604,25 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 		trace_ath10k_htt_stats(skb->data, skb->len);
 		break;
 	case HTT_T2H_MSG_TYPE_TX_INSPECT_IND:
+		/* Firmware can return tx frames if it's unable to fully
+		 * process them and suspects host may be able to fix it. ath10k
+		 * sends all tx frames as already inspected so this shouldn't
+		 * happen unless fw has a bug.
+		 */
+		ath10k_warn("received an unexpected htt tx inspect event\n");
+		break;
 	case HTT_T2H_MSG_TYPE_RX_ADDBA:
+		ath10k_htt_rx_addba(ar, resp);
+		break;
 	case HTT_T2H_MSG_TYPE_RX_DELBA:
-	case HTT_T2H_MSG_TYPE_RX_FLUSH:
+		ath10k_htt_rx_delba(ar, resp);
+		break;
+	case HTT_T2H_MSG_TYPE_RX_FLUSH: {
+		/* Ignore this event because mac80211 takes care of Rx
+		 * aggregation reordering.
+		 */
+		break;
+	}
 	default:
 		ath10k_dbg(ATH10K_DBG_HTT, "htt event (%d) not handled\n",
 			   resp->hdr.msg_type);