Merge tag 'net-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from ipsec, bpf, mptcp and netfilter.

  Current release - regressions:

   - netfilter: add NFT_TRANS_PREPARE_ERROR to deal with bound set/chain

   - eth: mlx5e:
      - fix scheduling of IPsec ASO query while in atomic
      - free IRQ rmap and notifier on kernel shutdown

  Current release - new code bugs:

   - phy: manual remove LEDs to ensure correct ordering

  Previous releases - regressions:

   - mptcp: fix possible divide by zero in recvmsg()

   - dsa: revert "net: phy: dp83867: perform soft reset and retain
     established link"

  Previous releases - always broken:

   - sched: netem: acquire qdisc lock in netem_change()

   - bpf:
      - fix verifier id tracking of scalars on spill
      - fix NULL dereference on exceptions
      - accept function names that contain dots

   - netfilter: disallow element updates of bound anonymous sets

   - mptcp: ensure listener is unhashed before updating the sk status

   - xfrm:
      - add missed call to delete offloaded policies
      - fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets

   - selftests: fixes for FIPS mode

   - dsa: mt7530: fix multiple CPU ports, BPDU and LLDP handling

   - eth: sfc: use budget for TX completions

  Misc:

   - wifi: iwlwifi: add support for SO-F device with PCI id 0x7AF0"

* tag 'net-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (74 commits)
  revert "net: align SO_RCVMARK required privileges with SO_MARK"
  net: wwan: iosm: Convert single instance struct member to flexible array
  sch_netem: acquire qdisc lock in netem_change()
  selftests: forwarding: Fix race condition in mirror installation
  wifi: mac80211: report all unusable beacon frames
  mptcp: ensure listener is unhashed before updating the sk status
  mptcp: drop legacy code around RX EOF
  mptcp: consolidate fallback and non fallback state machine
  mptcp: fix possible list corruption on passive MPJ
  mptcp: fix possible divide by zero in recvmsg()
  mptcp: handle correctly disconnect() failures
  bpf: Force kprobe multi expected_attach_type for kprobe_multi link
  bpf/btf: Accept function names that contain dots
  Revert "net: phy: dp83867: perform soft reset and retain established link"
  net: mdio: fix the wrong parameters
  netfilter: nf_tables: Fix for deleting base chains with payload
  netfilter: nfnetlink_osf: fix module autoload
  netfilter: nf_tables: drop module reference after updating chain
  netfilter: nf_tables: disallow timeout for anonymous sets
  netfilter: nf_tables: disallow updates of anonymous sets
  ...

6 files changed, 31 insertions, 13 deletions

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index d30459dbfe8f..b63e47af6365 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -2950,7 +2950,7 @@ static u32 efx_ef10_extract_event_ts(efx_qword_t *event)
 	return tstamp;
 }
 
-static void
+static int
 efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 {
 	struct efx_nic *efx = channel->efx;
@@ -2958,13 +2958,14 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 	unsigned int tx_ev_desc_ptr;
 	unsigned int tx_ev_q_label;
 	unsigned int tx_ev_type;
+	int work_done;
 	u64 ts_part;
 
 	if (unlikely(READ_ONCE(efx->reset_pending)))
-		return;
+		return 0;
 
 	if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_TX_DROP_EVENT)))
-		return;
+		return 0;
 
 	/* Get the transmit queue */
 	tx_ev_q_label = EFX_QWORD_FIELD(*event, ESF_DZ_TX_QLABEL);
@@ -2973,8 +2974,7 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 	if (!tx_queue->timestamping) {
 		/* Transmit completion */
 		tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, ESF_DZ_TX_DESCR_INDX);
-		efx_xmit_done(tx_queue, tx_ev_desc_ptr & tx_queue->ptr_mask);
-		return;
+		return efx_xmit_done(tx_queue, tx_ev_desc_ptr & tx_queue->ptr_mask);
 	}
 
 	/* Transmit timestamps are only available for 8XXX series. They result
@@ -3000,6 +3000,7 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 	 * fields in the event.
 	 */
 	tx_ev_type = EFX_QWORD_FIELD(*event, ESF_EZ_TX_SOFT1);
+	work_done = 0;
 
 	switch (tx_ev_type) {
 	case TX_TIMESTAMP_EVENT_TX_EV_COMPLETION:
@@ -3016,6 +3017,7 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 		tx_queue->completed_timestamp_major = ts_part;
 
 		efx_xmit_done_single(tx_queue);
+		work_done = 1;
 		break;
 
 	default:
@@ -3026,6 +3028,8 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 			  EFX_QWORD_VAL(*event));
 		break;
 	}
+
+	return work_done;
 }
 
 static void
@@ -3081,13 +3085,16 @@ static void efx_ef10_handle_driver_generated_event(struct efx_channel *channel,
 	}
 }
 
+#define EFX_NAPI_MAX_TX 512
+
 static int efx_ef10_ev_process(struct efx_channel *channel, int quota)
 {
 	struct efx_nic *efx = channel->efx;
 	efx_qword_t event, *p_event;
 	unsigned int read_ptr;
-	int ev_code;
+	int spent_tx = 0;
 	int spent = 0;
+	int ev_code;
 
 	if (quota <= 0)
 		return spent;
@@ -3126,7 +3133,11 @@ static int efx_ef10_ev_process(struct efx_channel *channel, int quota)
 			}
 			break;
 		case ESE_DZ_EV_CODE_TX_EV:
-			efx_ef10_handle_tx_event(channel, &event);
+			spent_tx += efx_ef10_handle_tx_event(channel, &event);
+			if (spent_tx >= EFX_NAPI_MAX_TX) {
+				spent = quota;
+				goto out;
+			}
 			break;
 		case ESE_DZ_EV_CODE_DRIVER_EV:
 			efx_ef10_handle_driver_event(channel, &event);
diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index 4dc643b0d2db..7adde9639c8a 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -253,6 +253,8 @@ static void ef100_ev_read_ack(struct efx_channel *channel)
 		   efx_reg(channel->efx, ER_GZ_EVQ_INT_PRIME));
 }
 
+#define EFX_NAPI_MAX_TX 512
+
 static int ef100_ev_process(struct efx_channel *channel, int quota)
 {
 	struct efx_nic *efx = channel->efx;
@@ -260,6 +262,7 @@ static int ef100_ev_process(struct efx_channel *channel, int quota)
 	bool evq_phase, old_evq_phase;
 	unsigned int read_ptr;
 	efx_qword_t *p_event;
+	int spent_tx = 0;
 	int spent = 0;
 	bool ev_phase;
 	int ev_type;
@@ -295,7 +298,9 @@ static int ef100_ev_process(struct efx_channel *channel, int quota)
 			efx_mcdi_process_event(channel, p_event);
 			break;
 		case ESE_GZ_EF100_EV_TX_COMPLETION:
-			ef100_ev_tx(channel, p_event);
+			spent_tx += ef100_ev_tx(channel, p_event);
+			if (spent_tx >= EFX_NAPI_MAX_TX)
+				spent = quota;
 			break;
 		case ESE_GZ_EF100_EV_DRIVER:
 			netif_info(efx, drv, efx->net_dev,
diff --git a/drivers/net/ethernet/sfc/ef100_tx.c b/drivers/net/ethernet/sfc/ef100_tx.c
index 29ffaf35559d..849e5555bd12 100644
--- a/drivers/net/ethernet/sfc/ef100_tx.c
+++ b/drivers/net/ethernet/sfc/ef100_tx.c
@@ -346,7 +346,7 @@ void ef100_tx_write(struct efx_tx_queue *tx_queue)
 	ef100_tx_push_buffers(tx_queue);
 }
 
-void ef100_ev_tx(struct efx_channel *channel, const efx_qword_t *p_event)
+int ef100_ev_tx(struct efx_channel *channel, const efx_qword_t *p_event)
 {
 	unsigned int tx_done =
 		EFX_QWORD_FIELD(*p_event, ESF_GZ_EV_TXCMPL_NUM_DESC);
@@ -357,7 +357,7 @@ void ef100_ev_tx(struct efx_channel *channel, const efx_qword_t *p_event)
 	unsigned int tx_index = (tx_queue->read_count + tx_done - 1) &
 				tx_queue->ptr_mask;
 
-	efx_xmit_done(tx_queue, tx_index);
+	return efx_xmit_done(tx_queue, tx_index);
 }
 
 /* Add a socket buffer to a TX queue
diff --git a/drivers/net/ethernet/sfc/ef100_tx.h b/drivers/net/ethernet/sfc/ef100_tx.h
index e9e11540fcde..d9a0819c5a72 100644
--- a/drivers/net/ethernet/sfc/ef100_tx.h
+++ b/drivers/net/ethernet/sfc/ef100_tx.h
@@ -20,7 +20,7 @@ void ef100_tx_init(struct efx_tx_queue *tx_queue);
 void ef100_tx_write(struct efx_tx_queue *tx_queue);
 unsigned int ef100_tx_max_skb_descs(struct efx_nic *efx);
 
-void ef100_ev_tx(struct efx_channel *channel, const efx_qword_t *p_event);
+int ef100_ev_tx(struct efx_channel *channel, const efx_qword_t *p_event);
 
 netdev_tx_t ef100_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
 int __ef100_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
diff --git a/drivers/net/ethernet/sfc/tx_common.c b/drivers/net/ethernet/sfc/tx_common.c
index 67e789b96c43..755aa92bf823 100644
--- a/drivers/net/ethernet/sfc/tx_common.c
+++ b/drivers/net/ethernet/sfc/tx_common.c
@@ -249,7 +249,7 @@ void efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue)
 	}
 }
 
-void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
+int efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 {
 	unsigned int fill_level, pkts_compl = 0, bytes_compl = 0;
 	unsigned int efv_pkts_compl = 0;
@@ -279,6 +279,8 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 	}
 
 	efx_xmit_done_check_empty(tx_queue);
+
+	return pkts_compl + efv_pkts_compl;
 }
 
 /* Remove buffers put into a tx_queue for the current packet.
diff --git a/drivers/net/ethernet/sfc/tx_common.h b/drivers/net/ethernet/sfc/tx_common.h
index d87aecbc7bf1..1e9f42938aac 100644
--- a/drivers/net/ethernet/sfc/tx_common.h
+++ b/drivers/net/ethernet/sfc/tx_common.h
@@ -28,7 +28,7 @@ static inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer)
 }
 
 void efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue);
-void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
+int efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
 
 void efx_enqueue_unwind(struct efx_tx_queue *tx_queue,
 			unsigned int insert_count);