Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - support "prefer busy polling" NAPI operation mode, where we defer
     softirq for some time expecting applications to periodically busy
     poll

   - AF_XDP: improve efficiency by more batching and hindering the
     adjacency cache prefetcher

   - af_packet: make packet_fanout.arr size configurable up to 64K

   - tcp: optimize TCP zero copy receive in presence of partial or
     unaligned reads making zero copy a performance win for much smaller
     messages

   - XDP: add bulk APIs for returning / freeing frames

   - sched: support fragmenting IP packets as they come out of conntrack

   - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs

  BPF:

   - BPF switch from crude rlimit-based to memcg-based memory accounting

   - BPF type format information for kernel modules and related tracing
     enhancements

   - BPF implement task local storage for BPF LSM

   - allow the FENTRY/FEXIT/RAW_TP tracing programs to use
     bpf_sk_storage

  Protocols:

   - mptcp: improve multiple xmit streams support, memory accounting and
     many smaller improvements

   - TLS: support CHACHA20-POLY1305 cipher

   - seg6: add support for SRv6 End.DT4/DT6 behavior

   - sctp: Implement RFC 6951: UDP Encapsulation of SCTP

   - ppp_generic: add ability to bridge channels directly

   - bridge: Connectivity Fault Management (CFM) support as is defined
     in IEEE 802.1Q section 12.14.

  Drivers:

   - mlx5: make use of the new auxiliary bus to organize the driver
     internals

   - mlx5: more accurate port TX timestamping support

   - mlxsw:
      - improve the efficiency of offloaded next hop updates by using
        the new nexthop object API
      - support blackhole nexthops
      - support IEEE 802.1ad (Q-in-Q) bridging

   - rtw88: major bluetooth co-existance improvements

   - iwlwifi: support new 6 GHz frequency band

   - ath11k: Fast Initial Link Setup (FILS)

   - mt7915: dual band concurrent (DBDC) support

   - net: ipa: add basic support for IPA v4.5

  Refactor:

   - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
     Siewior

   - phy: add support for shared interrupts; get rid of multiple driver
     APIs and have the drivers write a full IRQ handler, slight growth
     of driver code should be compensated by the simpler API which also
     allows shared IRQs

   - add common code for handling netdev per-cpu counters

   - move TX packet re-allocation from Ethernet switch tag drivers to a
     central place

   - improve efficiency and rename nla_strlcpy

   - number of W=1 warning cleanups as we now catch those in a patchwork
     build bot

  Old code removal:

   - wan: delete the DLCI / SDLA drivers

   - wimax: move to staging

   - wifi: remove old WDS wifi bridging support"

* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
  net: hns3: fix expression that is currently always true
  net: fix proc_fs init handling in af_packet and tls
  nfc: pn533: convert comma to semicolon
  af_vsock: Assign the vsock transport considering the vsock address flags
  af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
  vsock_addr: Check for supported flag values
  vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
  vm_sockets: Add flags field in the vsock address data structure
  net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
  tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
  net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
  nfc: s3fwrn5: Release the nfc firmware
  net: vxget: clean up sparse warnings
  mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
  mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
  mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
  mlxsw: reg: Add Router LPM Cache Enable Register
  mlxsw: reg: Add Router LPM Cache ML Delete Register
  mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
  mlxsw: reg: Add XM Router M Table Register
  ...

1 files changed, 55 insertions, 11 deletions

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 01625327eef7..205c0f1a40e9 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -274,6 +274,28 @@ static void ath11k_dp_service_mon_ring(struct timer_list *t)
 		  msecs_to_jiffies(ATH11K_MON_TIMER_INTERVAL));
 }
 
+static int ath11k_dp_purge_mon_ring(struct ath11k_base *ab)
+{
+	int i, reaped = 0;
+	unsigned long timeout = jiffies + msecs_to_jiffies(DP_MON_PURGE_TIMEOUT_MS);
+
+	do {
+		for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++)
+			reaped += ath11k_dp_rx_process_mon_rings(ab, i,
+								 NULL,
+								 DP_MON_SERVICE_BUDGET);
+
+		/* nothing more to reap */
+		if (reaped < DP_MON_SERVICE_BUDGET)
+			return 0;
+
+	} while (time_before(jiffies, timeout));
+
+	ath11k_warn(ab, "dp mon ring purge timeout");
+
+	return -ETIMEDOUT;
+}
+
 /* Returns number of Rx buffers replenished */
 int ath11k_dp_rxbufs_replenish(struct ath11k_base *ab, int mac_id,
 			       struct dp_rxdma_ring *rx_ring,
@@ -377,7 +399,7 @@ static int ath11k_dp_rxdma_buf_ring_free(struct ath11k *ar,
 	spin_lock_bh(&rx_ring->idr_lock);
 	idr_for_each_entry(&rx_ring->bufs_idr, skb, buf_id) {
 		idr_remove(&rx_ring->bufs_idr, buf_id);
-		/* TODO: Understand where internal driver does this dma_unmap of
+		/* TODO: Understand where internal driver does this dma_unmap
 		 * of rxdma_buffer.
 		 */
 		dma_unmap_single(ar->ab->dev, ATH11K_SKB_RXCB(skb)->paddr,
@@ -399,7 +421,7 @@ static int ath11k_dp_rxdma_buf_ring_free(struct ath11k *ar,
 	spin_lock_bh(&rx_ring->idr_lock);
 	idr_for_each_entry(&rx_ring->bufs_idr, skb, buf_id) {
 		idr_remove(&rx_ring->bufs_idr, buf_id);
-		/* XXX: Understand where internal driver does this dma_unmap of
+		/* XXX: Understand where internal driver does this dma_unmap
 		 * of rxdma_buffer.
 		 */
 		dma_unmap_single(ar->ab->dev, ATH11K_SKB_RXCB(skb)->paddr,
@@ -960,7 +982,7 @@ int ath11k_peer_rx_tid_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id,
 
 	rx_tid->ba_win_sz = ba_win_sz;
 
-	/* TODO: Optimize the memory allocation for qos tid based on the
+	/* TODO: Optimize the memory allocation for qos tid based on
 	 * the actual BA window size in REO tid update path.
 	 */
 	if (tid == HAL_DESC_REO_NON_QOS_TID)
@@ -2715,7 +2737,7 @@ static struct sk_buff *ath11k_dp_rx_alloc_mon_status_buf(struct ath11k_base *ab,
 
 	paddr = dma_map_single(ab->dev, skb->data,
 			       skb->len + skb_tailroom(skb),
-			       DMA_BIDIRECTIONAL);
+			       DMA_FROM_DEVICE);
 	if (unlikely(dma_mapping_error(ab->dev, paddr)))
 		goto fail_free_skb;
 
@@ -2731,7 +2753,7 @@ static struct sk_buff *ath11k_dp_rx_alloc_mon_status_buf(struct ath11k_base *ab,
 
 fail_dma_unmap:
 	dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb),
-			 DMA_BIDIRECTIONAL);
+			 DMA_FROM_DEVICE);
 fail_free_skb:
 	dev_kfree_skb_any(skb);
 fail_alloc_skb:
@@ -2795,7 +2817,7 @@ fail_desc_get:
 	idr_remove(&rx_ring->bufs_idr, buf_id);
 	spin_unlock_bh(&rx_ring->idr_lock);
 	dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb),
-			 DMA_BIDIRECTIONAL);
+			 DMA_FROM_DEVICE);
 	dev_kfree_skb_any(skb);
 	ath11k_hal_srng_access_end(ab, srng);
 	spin_unlock_bh(&srng->lock);
@@ -2856,13 +2878,9 @@ static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id,
 
 			rxcb = ATH11K_SKB_RXCB(skb);
 
-			dma_sync_single_for_cpu(ab->dev, rxcb->paddr,
-						skb->len + skb_tailroom(skb),
-						DMA_FROM_DEVICE);
-
 			dma_unmap_single(ab->dev, rxcb->paddr,
 					 skb->len + skb_tailroom(skb),
-					 DMA_BIDIRECTIONAL);
+					 DMA_FROM_DEVICE);
 
 			tlv = (struct hal_tlv_hdr *)skb->data;
 			if (FIELD_GET(HAL_TLV_HDR_TAG, tlv->tl) !=
@@ -5030,3 +5048,29 @@ int ath11k_dp_rx_pdev_mon_detach(struct ath11k *ar)
 	ath11k_dp_mon_link_free(ar);
 	return 0;
 }
+
+int ath11k_dp_rx_pktlog_start(struct ath11k_base *ab)
+{
+	/* start reap timer */
+	mod_timer(&ab->mon_reap_timer,
+		  jiffies + msecs_to_jiffies(ATH11K_MON_TIMER_INTERVAL));
+
+	return 0;
+}
+
+int ath11k_dp_rx_pktlog_stop(struct ath11k_base *ab, bool stop_timer)
+{
+	int ret;
+
+	if (stop_timer)
+		del_timer_sync(&ab->mon_reap_timer);
+
+	/* reap all the monitor related rings */
+	ret = ath11k_dp_purge_mon_ring(ab);
+	if (ret) {
+		ath11k_warn(ab, "failed to purge dp mon ring: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}