11 files changed, 49 insertions, 35 deletions

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index da6886dcac37..c3f35da1b82a 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -1747,6 +1747,22 @@ static size_t efx_ef10_describe_stats(struct efx_nic *efx, u8 *names)
 				      mask, names);
 }
 
+static void efx_ef10_get_fec_stats(struct efx_nic *efx,
+				   struct ethtool_fec_stats *fec_stats)
+{
+	DECLARE_BITMAP(mask, EF10_STAT_COUNT);
+	struct efx_ef10_nic_data *nic_data = efx->nic_data;
+	u64 *stats = nic_data->stats;
+
+	efx_ef10_get_stat_mask(efx, mask);
+	if (test_bit(EF10_STAT_fec_corrected_errors, mask))
+		fec_stats->corrected_blocks.total =
+			stats[EF10_STAT_fec_corrected_errors];
+	if (test_bit(EF10_STAT_fec_uncorrected_errors, mask))
+		fec_stats->uncorrectable_blocks.total =
+			stats[EF10_STAT_fec_uncorrected_errors];
+}
+
 static size_t efx_ef10_update_stats_common(struct efx_nic *efx, u64 *full_stats,
 					   struct rtnl_link_stats64 *core_stats)
 {
@@ -2928,8 +2944,7 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 
 	/* Get the transmit queue */
 	tx_ev_q_label = EFX_QWORD_FIELD(*event, ESF_DZ_TX_QLABEL);
-	tx_queue = efx_channel_get_tx_queue(channel,
-					    tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
+	tx_queue = channel->tx_queue + (tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
 
 	if (!tx_queue->timestamping) {
 		/* Transmit completion */
@@ -4122,6 +4137,7 @@ const struct efx_nic_type efx_hunt_a0_nic_type = {
 	.get_wol = efx_ef10_get_wol,
 	.set_wol = efx_ef10_set_wol,
 	.resume_wol = efx_port_dummy_op_void,
+	.get_fec_stats = efx_ef10_get_fec_stats,
 	.test_chip = efx_ef10_test_chip,
 	.test_nvram = efx_mcdi_nvram_test_all,
 	.mcdi_request = efx_ef10_mcdi_request,
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 36c8625a6fd7..c746ca7235f1 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -920,7 +920,7 @@ static void efx_probe_vpd_strings(struct efx_nic *efx)
 	}
 
 	/* Get the Read only section */
-	ro_start = pci_vpd_find_tag(vpd_data, 0, vpd_size, PCI_VPD_LRDT_RO_DATA);
+	ro_start = pci_vpd_find_tag(vpd_data, vpd_size, PCI_VPD_LRDT_RO_DATA);
 	if (ro_start < 0) {
 		netif_err(efx, drv, efx->net_dev, "VPD Read-only not found\n");
 		return;
diff --git a/drivers/net/ethernet/sfc/efx_channels.c b/drivers/net/ethernet/sfc/efx_channels.c
index 1bfeee283ea9..a3ca406a3561 100644
--- a/drivers/net/ethernet/sfc/efx_channels.c
+++ b/drivers/net/ethernet/sfc/efx_channels.c
@@ -914,6 +914,8 @@ int efx_set_channels(struct efx_nic *efx)
 			}
 		}
 	}
+	if (xdp_queue_number)
+		efx->xdp_tx_queue_count = xdp_queue_number;
 
 	rc = netif_set_real_num_tx_queues(efx->net_dev, efx->n_tx_channels);
 	if (rc)
diff --git a/drivers/net/ethernet/sfc/enum.h b/drivers/net/ethernet/sfc/enum.h
index 3332cdf2918a..cd590e0685e5 100644
--- a/drivers/net/ethernet/sfc/enum.h
+++ b/drivers/net/ethernet/sfc/enum.h
@@ -78,7 +78,6 @@ enum efx_loopback_mode {
 			    (1 << LOOPBACK_XAUI) |		\
 			    (1 << LOOPBACK_GMII) |		\
 			    (1 << LOOPBACK_SGMII) |		\
-			    (1 << LOOPBACK_SGMII) |		\
 			    (1 << LOOPBACK_XGBR) |		\
 			    (1 << LOOPBACK_XFI) |		\
 			    (1 << LOOPBACK_XAUI_FAR) |		\
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 12a91c559aa2..058d9fe41d99 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -206,6 +206,15 @@ static int efx_ethtool_set_wol(struct net_device *net_dev,
 	return efx->type->set_wol(efx, wol->wolopts);
 }
 
+static void efx_ethtool_get_fec_stats(struct net_device *net_dev,
+				      struct ethtool_fec_stats *fec_stats)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	if (efx->type->get_fec_stats)
+		efx->type->get_fec_stats(efx, fec_stats);
+}
+
 static int efx_ethtool_get_ts_info(struct net_device *net_dev,
 				   struct ethtool_ts_info *ts_info)
 {
@@ -257,6 +266,7 @@ const struct ethtool_ops efx_ethtool_ops = {
 	.get_module_eeprom	= efx_ethtool_get_module_eeprom,
 	.get_link_ksettings	= efx_ethtool_get_link_ksettings,
 	.set_link_ksettings	= efx_ethtool_set_link_ksettings,
+	.get_fec_stats		= efx_ethtool_get_fec_stats,
 	.get_fecparam		= efx_ethtool_get_fecparam,
 	.set_fecparam		= efx_ethtool_set_fecparam,
 };
diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c
index f8979991970e..5e7a57b680ca 100644
--- a/drivers/net/ethernet/sfc/falcon/efx.c
+++ b/drivers/net/ethernet/sfc/falcon/efx.c
@@ -2800,7 +2800,7 @@ static void ef4_probe_vpd_strings(struct ef4_nic *efx)
 	}
 
 	/* Get the Read only section */
-	ro_start = pci_vpd_find_tag(vpd_data, 0, vpd_size, PCI_VPD_LRDT_RO_DATA);
+	ro_start = pci_vpd_find_tag(vpd_data, vpd_size, PCI_VPD_LRDT_RO_DATA);
 	if (ro_start < 0) {
 		netif_err(efx, drv, efx->net_dev, "VPD Read-only not found\n");
 		return;
diff --git a/drivers/net/ethernet/sfc/falcon/net_driver.h b/drivers/net/ethernet/sfc/falcon/net_driver.h
index a529ff395ead..a381cf9ec4f3 100644
--- a/drivers/net/ethernet/sfc/falcon/net_driver.h
+++ b/drivers/net/ethernet/sfc/falcon/net_driver.h
@@ -637,7 +637,7 @@ union ef4_multicast_hash {
  * struct ef4_nic - an Efx NIC
  * @name: Device name (net device name or bus id before net device registered)
  * @pci_dev: The PCI device
- * @node: List node for maintaning primary/secondary function lists
+ * @node: List node for maintaining primary/secondary function lists
  * @primary: &struct ef4_nic instance for the primary function of this
  *	controller.  May be the same structure, and may be %NULL if no
  *	primary function is bound.  Serialised by rtnl_lock.
diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c
index d75cf5ff5686..49df02ecee91 100644
--- a/drivers/net/ethernet/sfc/farch.c
+++ b/drivers/net/ethernet/sfc/farch.c
@@ -835,14 +835,14 @@ efx_farch_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 		/* Transmit completion */
 		tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_DESC_PTR);
 		tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL);
-		tx_queue = efx_channel_get_tx_queue(
-			channel, tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
+		tx_queue = channel->tx_queue +
+				(tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
 		efx_xmit_done(tx_queue, tx_ev_desc_ptr);
 	} else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_WQ_FF_FULL)) {
 		/* Rewrite the FIFO write pointer */
 		tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL);
-		tx_queue = efx_channel_get_tx_queue(
-			channel, tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
+		tx_queue = channel->tx_queue +
+				(tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
 
 		netif_tx_lock(efx->net_dev);
 		efx_farch_notify_tx_desc(tx_queue);
@@ -1081,16 +1081,16 @@ static void
 efx_farch_handle_tx_flush_done(struct efx_nic *efx, efx_qword_t *event)
 {
 	struct efx_tx_queue *tx_queue;
+	struct efx_channel *channel;
 	int qid;
 
 	qid = EFX_QWORD_FIELD(*event, FSF_AZ_DRIVER_EV_SUBDATA);
 	if (qid < EFX_MAX_TXQ_PER_CHANNEL * (efx->n_tx_channels + efx->n_extra_tx_channels)) {
-		tx_queue = efx_get_tx_queue(efx, qid / EFX_MAX_TXQ_PER_CHANNEL,
-					    qid % EFX_MAX_TXQ_PER_CHANNEL);
-		if (atomic_cmpxchg(&tx_queue->flush_outstanding, 1, 0)) {
+		channel = efx_get_tx_channel(efx, qid / EFX_MAX_TXQ_PER_CHANNEL);
+		tx_queue = channel->tx_queue + (qid % EFX_MAX_TXQ_PER_CHANNEL);
+		if (atomic_cmpxchg(&tx_queue->flush_outstanding, 1, 0))
 			efx_farch_magic_event(tx_queue->channel,
 					      EFX_CHANNEL_MAGIC_TX_DRAIN(tx_queue));
-		}
 	}
 }
 
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 9f7dfdf708cf..9b4b25704271 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -1187,6 +1187,7 @@ struct efx_udp_tunnel {
  * @get_wol: Get WoL configuration from driver state
  * @set_wol: Push WoL configuration to the NIC
  * @resume_wol: Synchronise WoL state between driver and MC (e.g. after resume)
+ * @get_fec_stats: Get standard FEC statistics.
  * @test_chip: Test registers.  May use efx_farch_test_registers(), and is
  *	expected to reset the NIC.
  * @test_nvram: Test validity of NVRAM contents
@@ -1332,6 +1333,8 @@ struct efx_nic_type {
 	void (*get_wol)(struct efx_nic *efx, struct ethtool_wolinfo *wol);
 	int (*set_wol)(struct efx_nic *efx, u32 type);
 	void (*resume_wol)(struct efx_nic *efx);
+	void (*get_fec_stats)(struct efx_nic *efx,
+			      struct ethtool_fec_stats *fec_stats);
 	unsigned int (*check_caps)(const struct efx_nic *efx,
 				   u8 flag,
 				   u32 offset);
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 89c5c75f479f..17b8119c48e5 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -94,12 +94,11 @@ static struct sk_buff *efx_rx_mk_skb(struct efx_channel *channel,
 		rx_buf->len -= hdr_len;
 
 		for (;;) {
-			skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
-					   rx_buf->page, rx_buf->page_offset,
-					   rx_buf->len);
+			skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
+					rx_buf->page, rx_buf->page_offset,
+					rx_buf->len, efx->rx_buffer_truesize);
 			rx_buf->page = NULL;
-			skb->len += rx_buf->len;
-			skb->data_len += rx_buf->len;
+
 			if (skb_shinfo(skb)->nr_frags == n_frags)
 				break;
 
@@ -111,8 +110,6 @@ static struct sk_buff *efx_rx_mk_skb(struct efx_channel *channel,
 		n_frags = 0;
 	}
 
-	skb->truesize += n_frags * efx->rx_buffer_truesize;
-
 	/* Move past the ethernet header */
 	skb->protocol = eth_type_trans(skb, efx->net_dev);
 
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 1665529a7271..0c6650d2e239 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -412,14 +412,6 @@ err:
 	return NETDEV_TX_OK;
 }
 
-static void efx_xdp_return_frames(int n,  struct xdp_frame **xdpfs)
-{
-	int i;
-
-	for (i = 0; i < n; i++)
-		xdp_return_frame_rx_napi(xdpfs[i]);
-}
-
 /* Transmit a packet from an XDP buffer
  *
  * Returns number of packets sent on success, error code otherwise.
@@ -492,12 +484,7 @@ int efx_xdp_tx_buffers(struct efx_nic *efx, int n, struct xdp_frame **xdpfs,
 	if (flush && i > 0)
 		efx_nic_push_buffers(tx_queue);
 
-	if (i == 0)
-		return -EIO;
-
-	efx_xdp_return_frames(n - i, xdpfs + i);
-
-	return i;
+	return i == 0 ? -EIO : i;
 }
 
 /* Initiate a packet transmission.  We use one channel per CPU