Merge tag 'mlx5-updates-2018-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2018-01-19

From: Or Gerlitz <ogerlitz@mellanox.com>
=======
First six patches of this series further enhances the mlx5 hairpin support.
The first two patches deal with using different hairpin instances
for flows whose packets have different priorities to align with the port
TX QoS model. The next four patches allow us to do HW spreading
of flows over a set of hairpin pairs using RSS. The last two patches
change the driver to also set the size of the HW hairpin queues.
========

Next four patches from Eran Ben Elisha <eranbe@mellanox.com>:
Add more debug data for TX timeout handling, and further enhance and optimize
TX timeout handling upon lost interrupts, which adds a mechanism for explicitly
polling EQ in case of a TX timeout in order to recover from a lost interrupt.
If this is not the case (no pending EQEs), perform a channels full recovery as
usual.

From Kamal Heib <kamalh@mellanox.com>, Two patches to extend the stats group API
to have an update_stats() callback which will be used to fetch the hardware or
software counters data, this will improve the current API and reduce code
duplication.

From Gal Pressman <galp@mellanox.com>, Last patch, Add likely to the common RX checksum
flow.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx5/core/en.h

@@ -44,6 +44,7 @@
 #include <linux/mlx5/port.h>
 #include <linux/mlx5/vport.h>
 #include <linux/mlx5/transobj.h>
+#include <linux/mlx5/fs.h>
 #include <linux/rhashtable.h>
 #include <net/switchdev.h>
 #include <net/xdp.h>
@@ -560,6 +561,7 @@ struct mlx5e_channel {
 
 	/* data path - accessed per napi poll */
 	struct irq_desc *irq_desc;
+	struct mlx5e_ch_stats      stats;
 
 	/* control */
 	struct mlx5e_priv         *priv;
@@ -696,6 +698,11 @@ enum {
 	MLX5E_ARFS_FT_LEVEL
 };
 
+enum {
+	MLX5E_TC_FT_LEVEL = 0,
+	MLX5E_TC_TTC_FT_LEVEL,
+};
+
 struct mlx5e_ethtool_table {
 	struct mlx5_flow_table *ft;
 	int                    num_rules;
@@ -834,7 +841,7 @@ void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix);
 void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix);
 void mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi);
 
-void mlx5e_update_stats(struct mlx5e_priv *priv, bool full);
+void mlx5e_update_stats(struct mlx5e_priv *priv);
 
 int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
@@ -1024,11 +1031,26 @@ int mlx5e_create_direct_tirs(struct mlx5e_priv *priv);
 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv);
 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
 
-int mlx5e_create_ttc_table(struct mlx5e_priv *priv);
-void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv);
+struct ttc_params {
+	struct mlx5_flow_table_attr ft_attr;
+	u32 any_tt_tirn;
+	u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
+	struct mlx5e_ttc_table *inner_ttc;
+};
 
-int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv);
-void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv);
+void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params);
+void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params);
+void mlx5e_set_inner_ttc_ft_params(struct ttc_params *ttc_params);
+
+int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
+			   struct mlx5e_ttc_table *ttc);
+void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
+			     struct mlx5e_ttc_table *ttc);
+
+int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
+				 struct mlx5e_ttc_table *ttc);
+void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv,
+				   struct mlx5e_ttc_table *ttc);
 
 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,
 		     u32 underlay_qpn, u32 *tisn);
@@ -1041,6 +1063,8 @@ int mlx5e_open(struct net_device *netdev);
 void mlx5e_update_stats_work(struct work_struct *work);
 u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout);
 
+int mlx5e_bits_invert(unsigned long a, int size);
+
 /* ethtool helpers */
 void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
 			       struct ethtool_drvinfo *drvinfo);

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

@@ -207,7 +207,7 @@ void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
 		return;
 
 	mutex_lock(&priv->state_lock);
-	mlx5e_update_stats(priv, true);
+	mlx5e_update_stats(priv);
 	mutex_unlock(&priv->state_lock);
 
 	for (i = 0; i < mlx5e_num_stats_grps; i++)

drivers/net/ethernet/mellanox/mlx5/core/en_fs.c

@@ -806,25 +806,25 @@ mlx5e_generate_ttc_rule(struct mlx5e_priv *priv,
 	return err ? ERR_PTR(err) : rule;
 }
 
-static int mlx5e_generate_ttc_table_rules(struct mlx5e_priv *priv)
+static int mlx5e_generate_ttc_table_rules(struct mlx5e_priv *priv,
+					  struct ttc_params *params,
+					  struct mlx5e_ttc_table *ttc)
 {
 	struct mlx5_flow_destination dest = {};
-	struct mlx5e_ttc_table *ttc;
 	struct mlx5_flow_handle **rules;
 	struct mlx5_flow_table *ft;
 	int tt;
 	int err;
 
-	ttc = &priv->fs.ttc;
 	ft = ttc->ft.t;
 	rules = ttc->rules;
 
 	dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
 	for (tt = 0; tt < MLX5E_NUM_TT; tt++) {
 		if (tt == MLX5E_TT_ANY)
-			dest.tir_num = priv->direct_tir[0].tirn;
+			dest.tir_num = params->any_tt_tirn;
 		else
-			dest.tir_num = priv->indir_tir[tt].tirn;
+			dest.tir_num = params->indir_tirn[tt];
 		rules[tt] = mlx5e_generate_ttc_rule(priv, ft, &dest,
 						    ttc_rules[tt].etype,
 						    ttc_rules[tt].proto);
@@ -832,12 +832,12 @@ static int mlx5e_generate_ttc_table_rules(struct mlx5e_priv *priv)
 			goto del_rules;
 	}
 
-	if (!mlx5e_tunnel_inner_ft_supported(priv->mdev))
+	if (!params->inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
 		return 0;
 
 	rules     = ttc->tunnel_rules;
 	dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
-	dest.ft   = priv->fs.inner_ttc.ft.t;
+	dest.ft   = params->inner_ttc->ft.t;
 	for (tt = 0; tt < MLX5E_NUM_TUNNEL_TT; tt++) {
 		rules[tt] = mlx5e_generate_ttc_rule(priv, ft, &dest,
 						    ttc_tunnel_rules[tt].etype,
@@ -977,25 +977,25 @@ mlx5e_generate_inner_ttc_rule(struct mlx5e_priv *priv,
 	return err ? ERR_PTR(err) : rule;
 }
 
-static int mlx5e_generate_inner_ttc_table_rules(struct mlx5e_priv *priv)
+static int mlx5e_generate_inner_ttc_table_rules(struct mlx5e_priv *priv,
+						struct ttc_params *params,
+						struct mlx5e_ttc_table *ttc)
 {
 	struct mlx5_flow_destination dest = {};
 	struct mlx5_flow_handle **rules;
-	struct mlx5e_ttc_table *ttc;
 	struct mlx5_flow_table *ft;
 	int err;
 	int tt;
 
-	ttc =  &priv->fs.inner_ttc;
 	ft = ttc->ft.t;
 	rules = ttc->rules;
 
 	dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
 	for (tt = 0; tt < MLX5E_NUM_TT; tt++) {
 		if (tt == MLX5E_TT_ANY)
-			dest.tir_num = priv->direct_tir[0].tirn;
+			dest.tir_num = params->any_tt_tirn;
 		else
-			dest.tir_num = priv->inner_indir_tir[tt].tirn;
+			dest.tir_num = params->indir_tirn[tt];
 
 		rules[tt] = mlx5e_generate_inner_ttc_rule(priv, ft, &dest,
 							  ttc_rules[tt].etype,
@@ -1075,21 +1075,42 @@ static int mlx5e_create_inner_ttc_table_groups(struct mlx5e_ttc_table *ttc)
 	return err;
 }
 
-int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv)
+void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv,
+				struct ttc_params *ttc_params)
+{
+	ttc_params->any_tt_tirn = priv->direct_tir[0].tirn;
+	ttc_params->inner_ttc = &priv->fs.inner_ttc;
+}
+
+void mlx5e_set_inner_ttc_ft_params(struct ttc_params *ttc_params)
+{
+	struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr;
+
+	ft_attr->max_fte = MLX5E_INNER_TTC_TABLE_SIZE;
+	ft_attr->level = MLX5E_INNER_TTC_FT_LEVEL;
+	ft_attr->prio = MLX5E_NIC_PRIO;
+}
+
+void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params)
+
+{
+	struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr;
+
+	ft_attr->max_fte = MLX5E_TTC_TABLE_SIZE;
+	ft_attr->level = MLX5E_TTC_FT_LEVEL;
+	ft_attr->prio = MLX5E_NIC_PRIO;
+}
+
+int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
+				 struct mlx5e_ttc_table *ttc)
 {
-	struct mlx5e_ttc_table *ttc = &priv->fs.inner_ttc;
-	struct mlx5_flow_table_attr ft_attr = {};
 	struct mlx5e_flow_table *ft = &ttc->ft;
 	int err;
 
 	if (!mlx5e_tunnel_inner_ft_supported(priv->mdev))
 		return 0;
 
-	ft_attr.max_fte = MLX5E_INNER_TTC_TABLE_SIZE;
-	ft_attr.level   = MLX5E_INNER_TTC_FT_LEVEL;
-	ft_attr.prio    = MLX5E_NIC_PRIO;
-
-	ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
+	ft->t = mlx5_create_flow_table(priv->fs.ns, &params->ft_attr);
 	if (IS_ERR(ft->t)) {
 		err = PTR_ERR(ft->t);
 		ft->t = NULL;
@@ -1100,7 +1121,7 @@ int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv)
 	if (err)
 		goto err;
 
-	err = mlx5e_generate_inner_ttc_table_rules(priv);
+	err = mlx5e_generate_inner_ttc_table_rules(priv, params, ttc);
 	if (err)
 		goto err;
 
@@ -1111,10 +1132,9 @@ int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv)
 	return err;
 }
 
-void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv)
+void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv,
+				   struct mlx5e_ttc_table *ttc)
 {
-	struct mlx5e_ttc_table *ttc = &priv->fs.inner_ttc;
-
 	if (!mlx5e_tunnel_inner_ft_supported(priv->mdev))
 		return;
 
@@ -1122,27 +1142,21 @@ void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv)
 	mlx5e_destroy_flow_table(&ttc->ft);
 }
 
-void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv)
+void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
+			     struct mlx5e_ttc_table *ttc)
 {
-	struct mlx5e_ttc_table *ttc = &priv->fs.ttc;
-
 	mlx5e_cleanup_ttc_rules(ttc);
 	mlx5e_destroy_flow_table(&ttc->ft);
 }
 
-int mlx5e_create_ttc_table(struct mlx5e_priv *priv)
+int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
+			   struct mlx5e_ttc_table *ttc)
 {
 	bool match_ipv_outer = MLX5_CAP_FLOWTABLE_NIC_RX(priv->mdev, ft_field_support.outer_ip_version);
-	struct mlx5e_ttc_table *ttc = &priv->fs.ttc;
-	struct mlx5_flow_table_attr ft_attr = {};
 	struct mlx5e_flow_table *ft = &ttc->ft;
 	int err;
 
-	ft_attr.max_fte = MLX5E_TTC_TABLE_SIZE;
-	ft_attr.level = MLX5E_TTC_FT_LEVEL;
-	ft_attr.prio = MLX5E_NIC_PRIO;
-
-	ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
+	ft->t = mlx5_create_flow_table(priv->fs.ns, &params->ft_attr);
 	if (IS_ERR(ft->t)) {
 		err = PTR_ERR(ft->t);
 		ft->t = NULL;
@@ -1153,7 +1167,7 @@ int mlx5e_create_ttc_table(struct mlx5e_priv *priv)
 	if (err)
 		goto err;
 
-	err = mlx5e_generate_ttc_table_rules(priv);
+	err = mlx5e_generate_ttc_table_rules(priv, params, ttc);
 	if (err)
 		goto err;
 
@@ -1474,7 +1488,8 @@ static void mlx5e_destroy_vlan_table(struct mlx5e_priv *priv)
 
 int mlx5e_create_flow_steering(struct mlx5e_priv *priv)
 {
-	int err;
+	struct ttc_params ttc_params = {};
+	int tt, err;
 
 	priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
 					       MLX5_FLOW_NAMESPACE_KERNEL);
@@ -1489,14 +1504,23 @@ int mlx5e_create_flow_steering(struct mlx5e_priv *priv)
 		priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
 	}
 
-	err = mlx5e_create_inner_ttc_table(priv);
+	mlx5e_set_ttc_basic_params(priv, &ttc_params);
+	mlx5e_set_inner_ttc_ft_params(&ttc_params);
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
+		ttc_params.indir_tirn[tt] = priv->inner_indir_tir[tt].tirn;
+
+	err = mlx5e_create_inner_ttc_table(priv, &ttc_params, &priv->fs.inner_ttc);
 	if (err) {
 		netdev_err(priv->netdev, "Failed to create inner ttc table, err=%d\n",
 			   err);
 		goto err_destroy_arfs_tables;
 	}
 
-	err = mlx5e_create_ttc_table(priv);
+	mlx5e_set_ttc_ft_params(&ttc_params);
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
+		ttc_params.indir_tirn[tt] = priv->indir_tir[tt].tirn;
+
+	err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
 	if (err) {
 		netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
 			   err);
@@ -1524,9 +1548,9 @@ int mlx5e_create_flow_steering(struct mlx5e_priv *priv)
 err_destroy_l2_table:
 	mlx5e_destroy_l2_table(priv);
 err_destroy_ttc_table:
-	mlx5e_destroy_ttc_table(priv);
+	mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
 err_destroy_inner_ttc_table:
-	mlx5e_destroy_inner_ttc_table(priv);
+	mlx5e_destroy_inner_ttc_table(priv, &priv->fs.inner_ttc);
 err_destroy_arfs_tables:
 	mlx5e_arfs_destroy_tables(priv);
 
@@ -1537,8 +1561,8 @@ void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv)
 {
 	mlx5e_destroy_vlan_table(priv);
 	mlx5e_destroy_l2_table(priv);
-	mlx5e_destroy_ttc_table(priv);
-	mlx5e_destroy_inner_ttc_table(priv);
+	mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
+	mlx5e_destroy_inner_ttc_table(priv, &priv->fs.inner_ttc);
 	mlx5e_arfs_destroy_tables(priv);
 	mlx5e_ethtool_cleanup_steering(priv);
 }

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -173,182 +173,23 @@ static void mlx5e_tx_timeout_work(struct work_struct *work)
 	rtnl_unlock();
 }
 
-static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
+void mlx5e_update_stats(struct mlx5e_priv *priv)
 {
-	struct mlx5e_sw_stats temp, *s = &temp;
-	struct mlx5e_rq_stats *rq_stats;
-	struct mlx5e_sq_stats *sq_stats;
-	int i, j;
-
-	memset(s, 0, sizeof(*s));
-	for (i = 0; i < priv->channels.num; i++) {
-		struct mlx5e_channel *c = priv->channels.c[i];
-
-		rq_stats = &c->rq.stats;
-
-		s->rx_packets	+= rq_stats->packets;
-		s->rx_bytes	+= rq_stats->bytes;
-		s->rx_lro_packets += rq_stats->lro_packets;
-		s->rx_lro_bytes	+= rq_stats->lro_bytes;
-		s->rx_removed_vlan_packets += rq_stats->removed_vlan_packets;
-		s->rx_csum_none	+= rq_stats->csum_none;
-		s->rx_csum_complete += rq_stats->csum_complete;
-		s->rx_csum_unnecessary += rq_stats->csum_unnecessary;
-		s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
-		s->rx_xdp_drop += rq_stats->xdp_drop;
-		s->rx_xdp_tx += rq_stats->xdp_tx;
-		s->rx_xdp_tx_full += rq_stats->xdp_tx_full;
-		s->rx_wqe_err   += rq_stats->wqe_err;
-		s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
-		s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
-		s->rx_cqe_compress_blks += rq_stats->cqe_compress_blks;
-		s->rx_cqe_compress_pkts += rq_stats->cqe_compress_pkts;
-		s->rx_page_reuse  += rq_stats->page_reuse;
-		s->rx_cache_reuse += rq_stats->cache_reuse;
-		s->rx_cache_full  += rq_stats->cache_full;
-		s->rx_cache_empty += rq_stats->cache_empty;
-		s->rx_cache_busy  += rq_stats->cache_busy;
-		s->rx_cache_waive += rq_stats->cache_waive;
-
-		for (j = 0; j < priv->channels.params.num_tc; j++) {
-			sq_stats = &c->sq[j].stats;
-
-			s->tx_packets		+= sq_stats->packets;
-			s->tx_bytes		+= sq_stats->bytes;
-			s->tx_tso_packets	+= sq_stats->tso_packets;
-			s->tx_tso_bytes		+= sq_stats->tso_bytes;
-			s->tx_tso_inner_packets	+= sq_stats->tso_inner_packets;
-			s->tx_tso_inner_bytes	+= sq_stats->tso_inner_bytes;
-			s->tx_added_vlan_packets += sq_stats->added_vlan_packets;
-			s->tx_queue_stopped	+= sq_stats->stopped;
-			s->tx_queue_wake	+= sq_stats->wake;
-			s->tx_queue_dropped	+= sq_stats->dropped;
-			s->tx_xmit_more		+= sq_stats->xmit_more;
-			s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
-			s->tx_csum_none		+= sq_stats->csum_none;
-			s->tx_csum_partial	+= sq_stats->csum_partial;
-		}
-	}
-
-	s->link_down_events_phy = MLX5_GET(ppcnt_reg,
-				priv->stats.pport.phy_counters,
-				counter_set.phys_layer_cntrs.link_down_events);
-	memcpy(&priv->stats.sw, s, sizeof(*s));
-}
-
-static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
-{
-	int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
-	u32 *out = (u32 *)priv->stats.vport.query_vport_out;
-	u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {0};
-	struct mlx5_core_dev *mdev = priv->mdev;
-
-	MLX5_SET(query_vport_counter_in, in, opcode,
-		 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
-	MLX5_SET(query_vport_counter_in, in, op_mod, 0);
-	MLX5_SET(query_vport_counter_in, in, other_vport, 0);
-
-	mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
-}
-
-static void mlx5e_update_pport_counters(struct mlx5e_priv *priv, bool full)
-{
-	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
-	struct mlx5_core_dev *mdev = priv->mdev;
-	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
-	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
-	int prio;
-	void *out;
-
-	MLX5_SET(ppcnt_reg, in, local_port, 1);
-
-	out = pstats->IEEE_802_3_counters;
-	MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
-	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
-
-	if (!full)
-		return;
-
-	out = pstats->RFC_2863_counters;
-	MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
-	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
-
-	out = pstats->RFC_2819_counters;
-	MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
-	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
-
-	out = pstats->phy_counters;
-	MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
-	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
-
-	if (MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group)) {
-		out = pstats->phy_statistical_counters;
-		MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
-		mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
-	}
-
-	if (MLX5_CAP_PCAM_FEATURE(mdev, rx_buffer_fullness_counters)) {
-		out = pstats->eth_ext_counters;
-		MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP);
-		mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
-	}
-
-	MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
-	for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
-		out = pstats->per_prio_counters[prio];
-		MLX5_SET(ppcnt_reg, in, prio_tc, prio);
-		mlx5_core_access_reg(mdev, in, sz, out, sz,
-				     MLX5_REG_PPCNT, 0, 0);
-	}
-}
-
-static void mlx5e_update_q_counter(struct mlx5e_priv *priv)
-{
-	struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
-	u32 out[MLX5_ST_SZ_DW(query_q_counter_out)];
-	int err;
-
-	if (!priv->q_counter)
-		return;
-
-	err = mlx5_core_query_q_counter(priv->mdev, priv->q_counter, 0, out, sizeof(out));
-	if (err)
-		return;
-
-	qcnt->rx_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer);
-}
-
-static void mlx5e_update_pcie_counters(struct mlx5e_priv *priv)
-{
-	struct mlx5e_pcie_stats *pcie_stats = &priv->stats.pcie;
-	struct mlx5_core_dev *mdev = priv->mdev;
-	u32 in[MLX5_ST_SZ_DW(mpcnt_reg)] = {0};
-	int sz = MLX5_ST_SZ_BYTES(mpcnt_reg);
-	void *out;
-
-	if (!MLX5_CAP_MCAM_FEATURE(mdev, pcie_performance_group))
-		return;
-
-	out = pcie_stats->pcie_perf_counters;
-	MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP);
-	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
-}
+	int i;
 
-void mlx5e_update_stats(struct mlx5e_priv *priv, bool full)
-{
-	if (full) {
-		mlx5e_update_pcie_counters(priv);
-		mlx5e_ipsec_update_stats(priv);
-	}
-	mlx5e_update_pport_counters(priv, full);
-	mlx5e_update_vport_counters(priv);
-	mlx5e_update_q_counter(priv);
-	mlx5e_update_sw_counters(priv);
+	for (i = mlx5e_num_stats_grps - 1; i >= 0; i--)
+		if (mlx5e_stats_grps[i].update_stats)
+			mlx5e_stats_grps[i].update_stats(priv);
 }
 
 static void mlx5e_update_ndo_stats(struct mlx5e_priv *priv)
 {
-	mlx5e_update_stats(priv, false);
+	int i;
+
+	for (i = mlx5e_num_stats_grps - 1; i >= 0; i--)
+		if (mlx5e_stats_grps[i].update_stats_mask &
+		    MLX5E_NDO_UPDATE_STATS)
+			mlx5e_stats_grps[i].update_stats(priv);
 }
 
 void mlx5e_update_stats_work(struct work_struct *work)
@@ -2219,7 +2060,7 @@ static int mlx5e_rx_hash_fn(int hfunc)
 	       MLX5_RX_HASH_FN_INVERTED_XOR8;
 }
 
-static int mlx5e_bits_invert(unsigned long a, int size)
+int mlx5e_bits_invert(unsigned long a, int size)
 {
 	int inv = 0;
 	int i;
@@ -3757,26 +3598,62 @@ static netdev_features_t mlx5e_features_check(struct sk_buff *skb,
 	return features;
 }
 
+static bool mlx5e_tx_timeout_eq_recover(struct net_device *dev,
+					struct mlx5e_txqsq *sq)
+{
+	struct mlx5e_priv *priv = netdev_priv(dev);
+	struct mlx5_core_dev *mdev = priv->mdev;
+	int irqn_not_used, eqn;
+	struct mlx5_eq *eq;
+	u32 eqe_count;
+
+	if (mlx5_vector2eqn(mdev, sq->cq.mcq.vector, &eqn, &irqn_not_used))
+		return false;
+
+	eq = mlx5_eqn2eq(mdev, eqn);
+	if (IS_ERR(eq))
+		return false;
+
+	netdev_err(dev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
+		   eqn, eq->cons_index, eq->irqn);
+
+	eqe_count = mlx5_eq_poll_irq_disabled(eq);
+	if (!eqe_count)
+		return false;
+
+	netdev_err(dev, "Recover %d eqes on EQ 0x%x\n", eqe_count, eq->eqn);
+	sq->channel->stats.eq_rearm++;
+	return true;
+}
+
 static void mlx5e_tx_timeout(struct net_device *dev)
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
-	bool sched_work = false;
+	bool reopen_channels = false;
 	int i;
 
 	netdev_err(dev, "TX timeout detected\n");
 
 	for (i = 0; i < priv->channels.num * priv->channels.params.num_tc; i++) {
+		struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, i);
 		struct mlx5e_txqsq *sq = priv->txq2sq[i];
 
-		if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
+		if (!netif_xmit_stopped(dev_queue))
 			continue;
-		sched_work = true;
-		clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
-		netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n",
-			   i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc);
+		netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u\n",
+			   i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
+			   jiffies_to_usecs(jiffies - dev_queue->trans_start));
+
+		/* If we recover a lost interrupt, most likely TX timeout will
+		 * be resolved, skip reopening channels
+		 */
+		if (!mlx5e_tx_timeout_eq_recover(dev, sq)) {
+			clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
+			reopen_channels = true;
+		}
 	}
 
-	if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state))
+	if (reopen_channels && test_bit(MLX5E_STATE_OPENED, &priv->state))
 		schedule_work(&priv->tx_timeout_work);
 }
 

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

@@ -631,7 +631,7 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 		return;
 	}
 
-	if (is_last_ethertype_ip(skb, &network_depth)) {
+	if (likely(is_last_ethertype_ip(skb, &network_depth))) {
 		skb->ip_summed = CHECKSUM_COMPLETE;
 		skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
 		if (network_depth > ETH_HLEN)

drivers/net/ethernet/mellanox/mlx5/core/en_stats.c

@@ -71,6 +71,7 @@ static const struct counter_desc sw_stats_desc[] = {
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_cache_empty) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_cache_busy) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_cache_waive) },
+	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, ch_eq_rearm) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, link_down_events_phy) },
 };
 
@@ -99,6 +100,72 @@ static int mlx5e_grp_sw_fill_stats(struct mlx5e_priv *priv, u64 *data, int idx)
 	return idx;
 }
 
+static void mlx5e_grp_sw_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_sw_stats temp, *s = &temp;
+	struct mlx5e_rq_stats *rq_stats;
+	struct mlx5e_sq_stats *sq_stats;
+	struct mlx5e_ch_stats *ch_stats;
+	int i, j;
+
+	memset(s, 0, sizeof(*s));
+	for (i = 0; i < priv->channels.num; i++) {
+		struct mlx5e_channel *c = priv->channels.c[i];
+
+		rq_stats = &c->rq.stats;
+		ch_stats = &c->stats;
+
+		s->rx_packets	+= rq_stats->packets;
+		s->rx_bytes	+= rq_stats->bytes;
+		s->rx_lro_packets += rq_stats->lro_packets;
+		s->rx_lro_bytes	+= rq_stats->lro_bytes;
+		s->rx_removed_vlan_packets += rq_stats->removed_vlan_packets;
+		s->rx_csum_none	+= rq_stats->csum_none;
+		s->rx_csum_complete += rq_stats->csum_complete;
+		s->rx_csum_unnecessary += rq_stats->csum_unnecessary;
+		s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
+		s->rx_xdp_drop += rq_stats->xdp_drop;
+		s->rx_xdp_tx += rq_stats->xdp_tx;
+		s->rx_xdp_tx_full += rq_stats->xdp_tx_full;
+		s->rx_wqe_err   += rq_stats->wqe_err;
+		s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
+		s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
+		s->rx_cqe_compress_blks += rq_stats->cqe_compress_blks;
+		s->rx_cqe_compress_pkts += rq_stats->cqe_compress_pkts;
+		s->rx_page_reuse  += rq_stats->page_reuse;
+		s->rx_cache_reuse += rq_stats->cache_reuse;
+		s->rx_cache_full  += rq_stats->cache_full;
+		s->rx_cache_empty += rq_stats->cache_empty;
+		s->rx_cache_busy  += rq_stats->cache_busy;
+		s->rx_cache_waive += rq_stats->cache_waive;
+		s->ch_eq_rearm += ch_stats->eq_rearm;
+
+		for (j = 0; j < priv->channels.params.num_tc; j++) {
+			sq_stats = &c->sq[j].stats;
+
+			s->tx_packets		+= sq_stats->packets;
+			s->tx_bytes		+= sq_stats->bytes;
+			s->tx_tso_packets	+= sq_stats->tso_packets;
+			s->tx_tso_bytes		+= sq_stats->tso_bytes;
+			s->tx_tso_inner_packets	+= sq_stats->tso_inner_packets;
+			s->tx_tso_inner_bytes	+= sq_stats->tso_inner_bytes;
+			s->tx_added_vlan_packets += sq_stats->added_vlan_packets;
+			s->tx_queue_stopped	+= sq_stats->stopped;
+			s->tx_queue_wake	+= sq_stats->wake;
+			s->tx_queue_dropped	+= sq_stats->dropped;
+			s->tx_xmit_more		+= sq_stats->xmit_more;
+			s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
+			s->tx_csum_none		+= sq_stats->csum_none;
+			s->tx_csum_partial	+= sq_stats->csum_partial;
+		}
+	}
+
+	s->link_down_events_phy = MLX5_GET(ppcnt_reg,
+				priv->stats.pport.phy_counters,
+				counter_set.phys_layer_cntrs.link_down_events);
+	memcpy(&priv->stats.sw, s, sizeof(*s));
+}
+
 static const struct counter_desc q_stats_desc[] = {
 	{ MLX5E_DECLARE_STAT(struct mlx5e_qcounter_stats, rx_out_of_buffer) },
 };
@@ -128,6 +195,22 @@ static int mlx5e_grp_q_fill_stats(struct mlx5e_priv *priv, u64 *data, int idx)
 	return idx;
 }
 
+static void mlx5e_grp_q_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
+	u32 out[MLX5_ST_SZ_DW(query_q_counter_out)];
+	int err;
+
+	if (!priv->q_counter)
+		return;
+
+	err = mlx5_core_query_q_counter(priv->mdev, priv->q_counter, 0, out, sizeof(out));
+	if (err)
+		return;
+
+	qcnt->rx_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer);
+}
+
 #define VPORT_COUNTER_OFF(c) MLX5_BYTE_OFF(query_vport_counter_out, c)
 static const struct counter_desc vport_stats_desc[] = {
 	{ "rx_vport_unicast_packets",
@@ -200,6 +283,19 @@ static int mlx5e_grp_vport_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+static void mlx5e_grp_vport_update_stats(struct mlx5e_priv *priv)
+{
+	int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
+	u32 *out = (u32 *)priv->stats.vport.query_vport_out;
+	u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {0};
+	struct mlx5_core_dev *mdev = priv->mdev;
+
+	MLX5_SET(query_vport_counter_in, in, opcode, MLX5_CMD_OP_QUERY_VPORT_COUNTER);
+	MLX5_SET(query_vport_counter_in, in, op_mod, 0);
+	MLX5_SET(query_vport_counter_in, in, other_vport, 0);
+	mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
+}
+
 #define PPORT_802_3_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.eth_802_3_cntrs_grp_data_layout.c##_high)
@@ -252,6 +348,20 @@ static int mlx5e_grp_802_3_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+static void mlx5e_grp_802_3_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+	void *out;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	out = pstats->IEEE_802_3_counters;
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
+}
+
 #define PPORT_2863_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.eth_2863_cntrs_grp_data_layout.c##_high)
@@ -289,6 +399,20 @@ static int mlx5e_grp_2863_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+static void mlx5e_grp_2863_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+	void *out;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	out = pstats->RFC_2863_counters;
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
+}
+
 #define PPORT_2819_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.eth_2819_cntrs_grp_data_layout.c##_high)
@@ -336,6 +460,20 @@ static int mlx5e_grp_2819_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+static void mlx5e_grp_2819_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+	void *out;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	out = pstats->RFC_2819_counters;
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
+}
+
 #define PPORT_PHY_STATISTICAL_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.phys_layer_statistical_cntrs.c##_high)
@@ -376,6 +514,27 @@ static int mlx5e_grp_phy_fill_stats(struct mlx5e_priv *priv, u64 *data, int idx)
 	return idx;
 }
 
+static void mlx5e_grp_phy_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+	void *out;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	out = pstats->phy_counters;
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
+
+	if (!MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group))
+		return;
+
+	out = pstats->phy_statistical_counters;
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
+}
+
 #define PPORT_ETH_EXT_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.eth_extended_cntrs_grp_data_layout.c##_high)
@@ -418,6 +577,23 @@ static int mlx5e_grp_eth_ext_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+static void mlx5e_grp_eth_ext_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+	void *out;
+
+	if (!MLX5_CAP_PCAM_FEATURE(mdev, rx_buffer_fullness_counters))
+		return;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	out = pstats->eth_ext_counters;
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
+}
+
 #define PCIE_PERF_OFF(c) \
 	MLX5_BYTE_OFF(mpcnt_reg, counter_set.pcie_perf_cntrs_grp_data_layout.c)
 static const struct counter_desc pcie_perf_stats_desc[] = {
@@ -505,6 +681,22 @@ static int mlx5e_grp_pcie_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+static void mlx5e_grp_pcie_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pcie_stats *pcie_stats = &priv->stats.pcie;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(mpcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(mpcnt_reg);
+	void *out;
+
+	if (!MLX5_CAP_MCAM_FEATURE(mdev, pcie_performance_group))
+		return;
+
+	out = pcie_stats->pcie_perf_counters;
+	MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
+}
+
 #define PPORT_PER_PRIO_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.eth_per_prio_grp_data_layout.c##_high)
@@ -656,6 +848,47 @@ static int mlx5e_grp_per_prio_pfc_fill_stats(struct mlx5e_priv *priv,
 	return idx;
 }
 
+static int mlx5e_grp_per_prio_get_num_stats(struct mlx5e_priv *priv)
+{
+	return mlx5e_grp_per_prio_traffic_get_num_stats(priv) +
+		mlx5e_grp_per_prio_pfc_get_num_stats(priv);
+}
+
+static int mlx5e_grp_per_prio_fill_strings(struct mlx5e_priv *priv, u8 *data,
+					   int idx)
+{
+	idx = mlx5e_grp_per_prio_traffic_fill_strings(priv, data, idx);
+	idx = mlx5e_grp_per_prio_pfc_fill_strings(priv, data, idx);
+	return idx;
+}
+
+static int mlx5e_grp_per_prio_fill_stats(struct mlx5e_priv *priv, u64 *data,
+					 int idx)
+{
+	idx = mlx5e_grp_per_prio_traffic_fill_stats(priv, data, idx);
+	idx = mlx5e_grp_per_prio_pfc_fill_stats(priv, data, idx);
+	return idx;
+}
+
+static void mlx5e_grp_per_prio_update_stats(struct mlx5e_priv *priv)
+{
+	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+	int prio;
+	void *out;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
+	for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
+		out = pstats->per_prio_counters[prio];
+		MLX5_SET(ppcnt_reg, in, prio_tc, prio);
+		mlx5_core_access_reg(mdev, in, sz, out, sz,
+				     MLX5_REG_PPCNT, 0, 0);
+	}
+}
+
 static const struct counter_desc mlx5e_pme_status_desc[] = {
 	{ "module_unplug", 8 },
 };
@@ -723,6 +956,11 @@ static int mlx5e_grp_ipsec_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx + mlx5e_ipsec_get_stats(priv, data + idx);
 }
 
+static void mlx5e_grp_ipsec_update_stats(struct mlx5e_priv *priv)
+{
+	mlx5e_ipsec_update_stats(priv);
+}
+
 static const struct counter_desc rq_stats_desc[] = {
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, packets) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, bytes) },
@@ -767,12 +1005,18 @@ static const struct counter_desc sq_stats_desc[] = {
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, xmit_more) },
 };
 
+static const struct counter_desc ch_stats_desc[] = {
+	{ MLX5E_DECLARE_CH_STAT(struct mlx5e_ch_stats, eq_rearm) },
+};
+
 #define NUM_RQ_STATS			ARRAY_SIZE(rq_stats_desc)
 #define NUM_SQ_STATS			ARRAY_SIZE(sq_stats_desc)
+#define NUM_CH_STATS			ARRAY_SIZE(ch_stats_desc)
 
 static int mlx5e_grp_channels_get_num_stats(struct mlx5e_priv *priv)
 {
 	return (NUM_RQ_STATS * priv->channels.num) +
+		(NUM_CH_STATS * priv->channels.num) +
 		(NUM_SQ_STATS * priv->channels.num * priv->channels.params.num_tc);
 }
 
@@ -784,6 +1028,11 @@ static int mlx5e_grp_channels_fill_strings(struct mlx5e_priv *priv, u8 *data,
 	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
 		return idx;
 
+	for (i = 0; i < priv->channels.num; i++)
+		for (j = 0; j < NUM_CH_STATS; j++)
+			sprintf(data + (idx++) * ETH_GSTRING_LEN,
+				ch_stats_desc[j].format, i);
+
 	for (i = 0; i < priv->channels.num; i++)
 		for (j = 0; j < NUM_RQ_STATS; j++)
 			sprintf(data + (idx++) * ETH_GSTRING_LEN, rq_stats_desc[j].format, i);
@@ -807,6 +1056,12 @@ static int mlx5e_grp_channels_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
 		return idx;
 
+	for (i = 0; i < channels->num; i++)
+		for (j = 0; j < NUM_CH_STATS; j++)
+			data[idx++] =
+				MLX5E_READ_CTR64_CPU(&channels->c[i]->stats,
+						     ch_stats_desc, j);
+
 	for (i = 0; i < channels->num; i++)
 		for (j = 0; j < NUM_RQ_STATS; j++)
 			data[idx++] =
@@ -823,61 +1078,71 @@ static int mlx5e_grp_channels_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+/* The stats groups order is opposite to the update_stats() order calls */
 const struct mlx5e_stats_grp mlx5e_stats_grps[] = {
 	{
 		.get_num_stats = mlx5e_grp_sw_get_num_stats,
 		.fill_strings = mlx5e_grp_sw_fill_strings,
 		.fill_stats = mlx5e_grp_sw_fill_stats,
+		.update_stats_mask = MLX5E_NDO_UPDATE_STATS,
+		.update_stats = mlx5e_grp_sw_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_q_get_num_stats,
 		.fill_strings = mlx5e_grp_q_fill_strings,
 		.fill_stats = mlx5e_grp_q_fill_stats,
+		.update_stats_mask = MLX5E_NDO_UPDATE_STATS,
+		.update_stats = mlx5e_grp_q_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_vport_get_num_stats,
 		.fill_strings = mlx5e_grp_vport_fill_strings,
 		.fill_stats = mlx5e_grp_vport_fill_stats,
+		.update_stats_mask = MLX5E_NDO_UPDATE_STATS,
+		.update_stats = mlx5e_grp_vport_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_802_3_get_num_stats,
 		.fill_strings = mlx5e_grp_802_3_fill_strings,
 		.fill_stats = mlx5e_grp_802_3_fill_stats,
+		.update_stats_mask = MLX5E_NDO_UPDATE_STATS,
+		.update_stats = mlx5e_grp_802_3_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_2863_get_num_stats,
 		.fill_strings = mlx5e_grp_2863_fill_strings,
 		.fill_stats = mlx5e_grp_2863_fill_stats,
+		.update_stats = mlx5e_grp_2863_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_2819_get_num_stats,
 		.fill_strings = mlx5e_grp_2819_fill_strings,
 		.fill_stats = mlx5e_grp_2819_fill_stats,
+		.update_stats = mlx5e_grp_2819_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_phy_get_num_stats,
 		.fill_strings = mlx5e_grp_phy_fill_strings,
 		.fill_stats = mlx5e_grp_phy_fill_stats,
+		.update_stats = mlx5e_grp_phy_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_eth_ext_get_num_stats,
 		.fill_strings = mlx5e_grp_eth_ext_fill_strings,
 		.fill_stats = mlx5e_grp_eth_ext_fill_stats,
+		.update_stats = mlx5e_grp_eth_ext_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_pcie_get_num_stats,
 		.fill_strings = mlx5e_grp_pcie_fill_strings,
 		.fill_stats = mlx5e_grp_pcie_fill_stats,
+		.update_stats = mlx5e_grp_pcie_update_stats,
 	},
 	{
-		.get_num_stats = mlx5e_grp_per_prio_traffic_get_num_stats,
-		.fill_strings = mlx5e_grp_per_prio_traffic_fill_strings,
-		.fill_stats = mlx5e_grp_per_prio_traffic_fill_stats,
-	},
-	{
-		.get_num_stats = mlx5e_grp_per_prio_pfc_get_num_stats,
-		.fill_strings = mlx5e_grp_per_prio_pfc_fill_strings,
-		.fill_stats = mlx5e_grp_per_prio_pfc_fill_stats,
+		.get_num_stats = mlx5e_grp_per_prio_get_num_stats,
+		.fill_strings = mlx5e_grp_per_prio_fill_strings,
+		.fill_stats = mlx5e_grp_per_prio_fill_stats,
+		.update_stats = mlx5e_grp_per_prio_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_pme_get_num_stats,
@@ -888,6 +1153,7 @@ const struct mlx5e_stats_grp mlx5e_stats_grps[] = {
 		.get_num_stats = mlx5e_grp_ipsec_get_num_stats,
 		.fill_strings = mlx5e_grp_ipsec_fill_strings,
 		.fill_stats = mlx5e_grp_ipsec_fill_stats,
+		.update_stats = mlx5e_grp_ipsec_update_stats,
 	},
 	{
 		.get_num_stats = mlx5e_grp_channels_get_num_stats,

drivers/net/ethernet/mellanox/mlx5/core/en_stats.h

@@ -44,6 +44,7 @@
 #define MLX5E_DECLARE_STAT(type, fld) #fld, offsetof(type, fld)
 #define MLX5E_DECLARE_RX_STAT(type, fld) "rx%d_"#fld, offsetof(type, fld)
 #define MLX5E_DECLARE_TX_STAT(type, fld) "tx%d_"#fld, offsetof(type, fld)
+#define MLX5E_DECLARE_CH_STAT(type, fld) "ch%d_"#fld, offsetof(type, fld)
 
 struct counter_desc {
 	char		format[ETH_GSTRING_LEN];
@@ -88,6 +89,7 @@ struct mlx5e_sw_stats {
 	u64 rx_cache_empty;
 	u64 rx_cache_busy;
 	u64 rx_cache_waive;
+	u64 ch_eq_rearm;
 
 	/* Special handling counters */
 	u64 link_down_events_phy;
@@ -192,6 +194,10 @@ struct mlx5e_sq_stats {
 	u64 dropped;
 };
 
+struct mlx5e_ch_stats {
+	u64 eq_rearm;
+};
+
 struct mlx5e_stats {
 	struct mlx5e_sw_stats sw;
 	struct mlx5e_qcounter_stats qcnt;
@@ -201,11 +207,17 @@ struct mlx5e_stats {
 	struct mlx5e_pcie_stats pcie;
 };
 
+enum {
+	MLX5E_NDO_UPDATE_STATS = BIT(0x1),
+};
+
 struct mlx5e_priv;
 struct mlx5e_stats_grp {
+	u16 update_stats_mask;
 	int (*get_num_stats)(struct mlx5e_priv *priv);
 	int (*fill_strings)(struct mlx5e_priv *priv, u8 *data, int idx);
 	int (*fill_stats)(struct mlx5e_priv *priv, u64 *data, int idx);
+	void (*update_stats)(struct mlx5e_priv *priv);
 };
 
 extern const struct mlx5e_stats_grp mlx5e_stats_grps[];

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -51,12 +51,14 @@
 #include "en_tc.h"
 #include "eswitch.h"
 #include "vxlan.h"
+#include "fs_core.h"
 
 struct mlx5_nic_flow_attr {
 	u32 action;
 	u32 flow_tag;
 	u32 mod_hdr_id;
 	u32 hairpin_tirn;
+	struct mlx5_flow_table	*hairpin_ft;
 };
 
 enum {
@@ -64,6 +66,7 @@ enum {
 	MLX5E_TC_FLOW_NIC	= BIT(1),
 	MLX5E_TC_FLOW_OFFLOADED	= BIT(2),
 	MLX5E_TC_FLOW_HAIRPIN	= BIT(3),
+	MLX5E_TC_FLOW_HAIRPIN_RSS = BIT(4),
 };
 
 struct mlx5e_tc_flow {
@@ -100,8 +103,14 @@ struct mlx5e_hairpin {
 	struct mlx5_hairpin *pair;
 
 	struct mlx5_core_dev *func_mdev;
+	struct mlx5e_priv *func_priv;
 	u32 tdn;
 	u32 tirn;
+
+	int num_channels;
+	struct mlx5e_rqt indir_rqt;
+	u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
+	struct mlx5e_ttc_table ttc;
 };
 
 struct mlx5e_hairpin_entry {
@@ -111,7 +120,8 @@ struct mlx5e_hairpin_entry {
 	/* flows sharing the same hairpin */
 	struct list_head flows;
 
-	int peer_ifindex;
+	u16 peer_vhca_id;
+	u8 prio;
 	struct mlx5e_hairpin *hp;
 };
 
@@ -268,7 +278,7 @@ static int mlx5e_hairpin_create_transport(struct mlx5e_hairpin *hp)
 	tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
 
 	MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT);
-	MLX5_SET(tirc, tirc, inline_rqn, hp->pair->rqn);
+	MLX5_SET(tirc, tirc, inline_rqn, hp->pair->rqn[0]);
 	MLX5_SET(tirc, tirc, transport_domain, hp->tdn);
 
 	err = mlx5_core_create_tir(hp->func_mdev, in, MLX5_ST_SZ_BYTES(create_tir_in), &hp->tirn);
@@ -289,6 +299,151 @@ static void mlx5e_hairpin_destroy_transport(struct mlx5e_hairpin *hp)
 	mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn);
 }
 
+static void mlx5e_hairpin_fill_rqt_rqns(struct mlx5e_hairpin *hp, void *rqtc)
+{
+	u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE], rqn;
+	struct mlx5e_priv *priv = hp->func_priv;
+	int i, ix, sz = MLX5E_INDIR_RQT_SIZE;
+
+	mlx5e_build_default_indir_rqt(indirection_rqt, sz,
+				      hp->num_channels);
+
+	for (i = 0; i < sz; i++) {
+		ix = i;
+		if (priv->channels.params.rss_hfunc == ETH_RSS_HASH_XOR)
+			ix = mlx5e_bits_invert(i, ilog2(sz));
+		ix = indirection_rqt[ix];
+		rqn = hp->pair->rqn[ix];
+		MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
+	}
+}
+
+static int mlx5e_hairpin_create_indirect_rqt(struct mlx5e_hairpin *hp)
+{
+	int inlen, err, sz = MLX5E_INDIR_RQT_SIZE;
+	struct mlx5e_priv *priv = hp->func_priv;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	void *rqtc;
+	u32 *in;
+
+	inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
+	in = kvzalloc(inlen, GFP_KERNEL);
+	if (!in)
+		return -ENOMEM;
+
+	rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
+
+	MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
+	MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
+
+	mlx5e_hairpin_fill_rqt_rqns(hp, rqtc);
+
+	err = mlx5_core_create_rqt(mdev, in, inlen, &hp->indir_rqt.rqtn);
+	if (!err)
+		hp->indir_rqt.enabled = true;
+
+	kvfree(in);
+	return err;
+}
+
+static int mlx5e_hairpin_create_indirect_tirs(struct mlx5e_hairpin *hp)
+{
+	struct mlx5e_priv *priv = hp->func_priv;
+	u32 in[MLX5_ST_SZ_DW(create_tir_in)];
+	int tt, i, err;
+	void *tirc;
+
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
+		memset(in, 0, MLX5_ST_SZ_BYTES(create_tir_in));
+		tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
+
+		MLX5_SET(tirc, tirc, transport_domain, hp->tdn);
+		MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
+		MLX5_SET(tirc, tirc, indirect_table, hp->indir_rqt.rqtn);
+		mlx5e_build_indir_tir_ctx_hash(&priv->channels.params, tt, tirc, false);
+
+		err = mlx5_core_create_tir(hp->func_mdev, in,
+					   MLX5_ST_SZ_BYTES(create_tir_in), &hp->indir_tirn[tt]);
+		if (err) {
+			mlx5_core_warn(hp->func_mdev, "create indirect tirs failed, %d\n", err);
+			goto err_destroy_tirs;
+		}
+	}
+	return 0;
+
+err_destroy_tirs:
+	for (i = 0; i < tt; i++)
+		mlx5_core_destroy_tir(hp->func_mdev, hp->indir_tirn[i]);
+	return err;
+}
+
+static void mlx5e_hairpin_destroy_indirect_tirs(struct mlx5e_hairpin *hp)
+{
+	int tt;
+
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
+		mlx5_core_destroy_tir(hp->func_mdev, hp->indir_tirn[tt]);
+}
+
+static void mlx5e_hairpin_set_ttc_params(struct mlx5e_hairpin *hp,
+					 struct ttc_params *ttc_params)
+{
+	struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr;
+	int tt;
+
+	memset(ttc_params, 0, sizeof(*ttc_params));
+
+	ttc_params->any_tt_tirn = hp->tirn;
+
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
+		ttc_params->indir_tirn[tt] = hp->indir_tirn[tt];
+
+	ft_attr->max_fte = MLX5E_NUM_TT;
+	ft_attr->level = MLX5E_TC_TTC_FT_LEVEL;
+	ft_attr->prio = MLX5E_TC_PRIO;
+}
+
+static int mlx5e_hairpin_rss_init(struct mlx5e_hairpin *hp)
+{
+	struct mlx5e_priv *priv = hp->func_priv;
+	struct ttc_params ttc_params;
+	int err;
+
+	err = mlx5e_hairpin_create_indirect_rqt(hp);
+	if (err)
+		return err;
+
+	err = mlx5e_hairpin_create_indirect_tirs(hp);
+	if (err)
+		goto err_create_indirect_tirs;
+
+	mlx5e_hairpin_set_ttc_params(hp, &ttc_params);
+	err = mlx5e_create_ttc_table(priv, &ttc_params, &hp->ttc);
+	if (err)
+		goto err_create_ttc_table;
+
+	netdev_dbg(priv->netdev, "add hairpin: using %d channels rss ttc table id %x\n",
+		   hp->num_channels, hp->ttc.ft.t->id);
+
+	return 0;
+
+err_create_ttc_table:
+	mlx5e_hairpin_destroy_indirect_tirs(hp);
+err_create_indirect_tirs:
+	mlx5e_destroy_rqt(priv, &hp->indir_rqt);
+
+	return err;
+}
+
+static void mlx5e_hairpin_rss_cleanup(struct mlx5e_hairpin *hp)
+{
+	struct mlx5e_priv *priv = hp->func_priv;
+
+	mlx5e_destroy_ttc_table(priv, &hp->ttc);
+	mlx5e_hairpin_destroy_indirect_tirs(hp);
+	mlx5e_destroy_rqt(priv, &hp->indir_rqt);
+}
+
 static struct mlx5e_hairpin *
 mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params,
 		     int peer_ifindex)
@@ -312,13 +467,23 @@ mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params
 	}
 	hp->pair = pair;
 	hp->func_mdev = func_mdev;
+	hp->func_priv = priv;
+	hp->num_channels = params->num_channels;
 
 	err = mlx5e_hairpin_create_transport(hp);
 	if (err)
 		goto create_transport_err;
 
+	if (hp->num_channels > 1) {
+		err = mlx5e_hairpin_rss_init(hp);
+		if (err)
+			goto rss_init_err;
+	}
+
 	return hp;
 
+rss_init_err:
+	mlx5e_hairpin_destroy_transport(hp);
 create_transport_err:
 	mlx5_core_hairpin_destroy(hp->pair);
 create_pair_err:
@@ -328,41 +493,96 @@ mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params
 
 static void mlx5e_hairpin_destroy(struct mlx5e_hairpin *hp)
 {
+	if (hp->num_channels > 1)
+		mlx5e_hairpin_rss_cleanup(hp);
 	mlx5e_hairpin_destroy_transport(hp);
 	mlx5_core_hairpin_destroy(hp->pair);
 	kvfree(hp);
 }
 
+static inline u32 hash_hairpin_info(u16 peer_vhca_id, u8 prio)
+{
+	return (peer_vhca_id << 16 | prio);
+}
+
 static struct mlx5e_hairpin_entry *mlx5e_hairpin_get(struct mlx5e_priv *priv,
-						     int peer_ifindex)
+						     u16 peer_vhca_id, u8 prio)
 {
 	struct mlx5e_hairpin_entry *hpe;
+	u32 hash_key = hash_hairpin_info(peer_vhca_id, prio);
 
 	hash_for_each_possible(priv->fs.tc.hairpin_tbl, hpe,
-			       hairpin_hlist, peer_ifindex) {
-		if (hpe->peer_ifindex == peer_ifindex)
+			       hairpin_hlist, hash_key) {
+		if (hpe->peer_vhca_id == peer_vhca_id && hpe->prio == prio)
 			return hpe;
 	}
 
 	return NULL;
 }
 
+#define UNKNOWN_MATCH_PRIO 8
+
+static int mlx5e_hairpin_get_prio(struct mlx5e_priv *priv,
+				  struct mlx5_flow_spec *spec, u8 *match_prio)
+{
+	void *headers_c, *headers_v;
+	u8 prio_val, prio_mask = 0;
+	bool vlan_present;
+
+#ifdef CONFIG_MLX5_CORE_EN_DCB
+	if (priv->dcbx_dp.trust_state != MLX5_QPTS_TRUST_PCP) {
+		netdev_warn(priv->netdev,
+			    "only PCP trust state supported for hairpin\n");
+		return -EOPNOTSUPP;
+	}
+#endif
+	headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers);
+	headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
+
+	vlan_present = MLX5_GET(fte_match_set_lyr_2_4, headers_v, cvlan_tag);
+	if (vlan_present) {
+		prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c, first_prio);
+		prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio);
+	}
+
+	if (!vlan_present || !prio_mask) {
+		prio_val = UNKNOWN_MATCH_PRIO;
+	} else if (prio_mask != 0x7) {
+		netdev_warn(priv->netdev,
+			    "masked priority match not supported for hairpin\n");
+		return -EOPNOTSUPP;
+	}
+
+	*match_prio = prio_val;
+	return 0;
+}
+
 static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv,
 				  struct mlx5e_tc_flow *flow,
 				  struct mlx5e_tc_flow_parse_attr *parse_attr)
 {
 	int peer_ifindex = parse_attr->mirred_ifindex;
 	struct mlx5_hairpin_params params;
+	struct mlx5_core_dev *peer_mdev;
 	struct mlx5e_hairpin_entry *hpe;
 	struct mlx5e_hairpin *hp;
+	u64 link_speed64;
+	u32 link_speed;
+	u8 match_prio;
+	u16 peer_id;
 	int err;
 
-	if (!MLX5_CAP_GEN(priv->mdev, hairpin)) {
+	peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex);
+	if (!MLX5_CAP_GEN(priv->mdev, hairpin) || !MLX5_CAP_GEN(peer_mdev, hairpin)) {
 		netdev_warn(priv->netdev, "hairpin is not supported\n");
 		return -EOPNOTSUPP;
 	}
 
-	hpe = mlx5e_hairpin_get(priv, peer_ifindex);
+	peer_id = MLX5_CAP_GEN(peer_mdev, vhca_id);
+	err = mlx5e_hairpin_get_prio(priv, &parse_attr->spec, &match_prio);
+	if (err)
+		return err;
+	hpe = mlx5e_hairpin_get(priv, peer_id, match_prio);
 	if (hpe)
 		goto attach_flow;
 
@@ -371,14 +591,27 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv,
 		return -ENOMEM;
 
 	INIT_LIST_HEAD(&hpe->flows);
-	hpe->peer_ifindex = peer_ifindex;
+	hpe->peer_vhca_id = peer_id;
+	hpe->prio = match_prio;
 
 	params.log_data_size = 15;
 	params.log_data_size = min_t(u8, params.log_data_size,
 				     MLX5_CAP_GEN(priv->mdev, log_max_hairpin_wq_data_sz));
 	params.log_data_size = max_t(u8, params.log_data_size,
 				     MLX5_CAP_GEN(priv->mdev, log_min_hairpin_wq_data_sz));
+
+	params.log_num_packets = params.log_data_size -
+				 MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(priv->mdev);
+	params.log_num_packets = min_t(u8, params.log_num_packets,
+				       MLX5_CAP_GEN(priv->mdev, log_max_hairpin_num_packets));
+
 	params.q_counter = priv->q_counter;
+	/* set hairpin pair per each 50Gbs share of the link */
+	mlx5e_get_max_linkspeed(priv->mdev, &link_speed);
+	link_speed = max_t(u32, link_speed, 50000);
+	link_speed64 = link_speed;
+	do_div(link_speed64, 50000);
+	params.num_channels = link_speed64;
 
 	hp = mlx5e_hairpin_create(priv, &params, peer_ifindex);
 	if (IS_ERR(hp)) {
@@ -386,16 +619,23 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv,
 		goto create_hairpin_err;
 	}
 
-	netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x log data size %d\n",
-		   hp->tirn, hp->pair->rqn, hp->pair->peer_mdev->priv.name,
-		   hp->pair->sqn, params.log_data_size);
+	netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d (log) data %d packets %d\n",
+		   hp->tirn, hp->pair->rqn[0], hp->pair->peer_mdev->priv.name,
+		   hp->pair->sqn[0], match_prio, params.log_data_size, params.log_num_packets);
 
 	hpe->hp = hp;
-	hash_add(priv->fs.tc.hairpin_tbl, &hpe->hairpin_hlist, peer_ifindex);
+	hash_add(priv->fs.tc.hairpin_tbl, &hpe->hairpin_hlist,
+		 hash_hairpin_info(peer_id, match_prio));
 
 attach_flow:
-	flow->nic_attr->hairpin_tirn = hpe->hp->tirn;
+	if (hpe->hp->num_channels > 1) {
+		flow->flags |= MLX5E_TC_FLOW_HAIRPIN_RSS;
+		flow->nic_attr->hairpin_ft = hpe->hp->ttc.ft.t;
+	} else {
+		flow->nic_attr->hairpin_tirn = hpe->hp->tirn;
+	}
 	list_add(&flow->hairpin, &hpe->flows);
+
 	return 0;
 
 create_hairpin_err:
@@ -443,20 +683,24 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
 	bool table_created = false;
 	int err, dest_ix = 0;
 
-	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
-		if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) {
-			err = mlx5e_hairpin_flow_add(priv, flow, parse_attr);
-			if (err) {
-				rule = ERR_PTR(err);
-				goto err_add_hairpin_flow;
-			}
+	if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) {
+		err = mlx5e_hairpin_flow_add(priv, flow, parse_attr);
+		if (err) {
+			rule = ERR_PTR(err);
+			goto err_add_hairpin_flow;
+		}
+		if (flow->flags & MLX5E_TC_FLOW_HAIRPIN_RSS) {
+			dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+			dest[dest_ix].ft = attr->hairpin_ft;
+		} else {
 			dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_TIR;
 			dest[dest_ix].tir_num = attr->hairpin_tirn;
-		} else {
-			dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
-			dest[dest_ix].ft = priv->fs.vlan.ft.t;
 		}
 		dest_ix++;
+	} else if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
+		dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+		dest[dest_ix].ft = priv->fs.vlan.ft.t;
+		dest_ix++;
 	}
 
 	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
@@ -497,7 +741,7 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
 							    MLX5E_TC_PRIO,
 							    tc_tbl_size,
 							    MLX5E_TC_TABLE_NUM_GROUPS,
-							    0, 0);
+							    MLX5E_TC_FT_LEVEL, 0);
 		if (IS_ERR(priv->fs.tc.t)) {
 			netdev_err(priv->netdev,
 				   "Failed to create tc offload table\n");

drivers/net/ethernet/mellanox/mlx5/core/eq.c

@@ -530,6 +530,24 @@ static irqreturn_t mlx5_eq_int(int irq, void *eq_ptr)
 	return IRQ_HANDLED;
 }
 
+/* Some architectures don't latch interrupts when they are disabled, so using
+ * mlx5_eq_poll_irq_disabled could end up losing interrupts while trying to
+ * avoid losing them.  It is not recommended to use it, unless this is the last
+ * resort.
+ */
+u32 mlx5_eq_poll_irq_disabled(struct mlx5_eq *eq)
+{
+	u32 count_eqe;
+
+	disable_irq(eq->irqn);
+	count_eqe = eq->cons_index;
+	mlx5_eq_int(eq->irqn, eq);
+	count_eqe = eq->cons_index - count_eqe;
+	enable_irq(eq->irqn);
+
+	return count_eqe;
+}
+
 static void init_eq_buf(struct mlx5_eq *eq)
 {
 	struct mlx5_eqe *eqe;

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -89,6 +89,9 @@
 /* One more level for tc */
 #define KERNEL_MIN_LEVEL (KERNEL_NIC_PRIO_NUM_LEVELS + 1)
 
+#define KERNEL_NIC_TC_NUM_PRIOS  1
+#define KERNEL_NIC_TC_NUM_LEVELS 2
+
 #define ANCHOR_NUM_LEVELS 1
 #define ANCHOR_NUM_PRIOS 1
 #define ANCHOR_MIN_LEVEL (BY_PASS_MIN_LEVEL + 1)
@@ -134,7 +137,7 @@ static struct init_tree_node {
 			 ADD_NS(ADD_MULTIPLE_PRIO(ETHTOOL_NUM_PRIOS,
 						  ETHTOOL_PRIO_NUM_LEVELS))),
 		ADD_PRIO(0, KERNEL_MIN_LEVEL, 0, {},
-			 ADD_NS(ADD_MULTIPLE_PRIO(1, 1),
+			 ADD_NS(ADD_MULTIPLE_PRIO(KERNEL_NIC_TC_NUM_PRIOS, KERNEL_NIC_TC_NUM_LEVELS),
 				ADD_MULTIPLE_PRIO(KERNEL_NIC_NUM_PRIOS,
 						  KERNEL_NIC_PRIO_NUM_LEVELS))),
 		ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0,

drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c

@@ -241,7 +241,8 @@ static void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
 
 static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
 {
-	int err;
+	struct ttc_params ttc_params = {};
+	int tt, err;
 
 	priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
 					       MLX5_FLOW_NAMESPACE_KERNEL);
@@ -256,14 +257,23 @@ static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
 		priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
 	}
 
-	err = mlx5e_create_inner_ttc_table(priv);
+	mlx5e_set_ttc_basic_params(priv, &ttc_params);
+	mlx5e_set_inner_ttc_ft_params(&ttc_params);
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
+		ttc_params.indir_tirn[tt] = priv->inner_indir_tir[tt].tirn;
+
+	err = mlx5e_create_inner_ttc_table(priv, &ttc_params, &priv->fs.inner_ttc);
 	if (err) {
 		netdev_err(priv->netdev, "Failed to create inner ttc table, err=%d\n",
 			   err);
 		goto err_destroy_arfs_tables;
 	}
 
-	err = mlx5e_create_ttc_table(priv);
+	mlx5e_set_ttc_ft_params(&ttc_params);
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
+		ttc_params.indir_tirn[tt] = priv->inner_indir_tir[tt].tirn;
+
+	err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
 	if (err) {
 		netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
 			   err);
@@ -273,7 +283,7 @@ static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
 	return 0;
 
 err_destroy_inner_ttc_table:
-	mlx5e_destroy_inner_ttc_table(priv);
+	mlx5e_destroy_inner_ttc_table(priv, &priv->fs.inner_ttc);
 err_destroy_arfs_tables:
 	mlx5e_arfs_destroy_tables(priv);
 
@@ -282,8 +292,8 @@ static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
 
 static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
 {
-	mlx5e_destroy_ttc_table(priv);
-	mlx5e_destroy_inner_ttc_table(priv);
+	mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
+	mlx5e_destroy_inner_ttc_table(priv, &priv->fs.inner_ttc);
 	mlx5e_arfs_destroy_tables(priv);
 }
 

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

@@ -116,6 +116,7 @@ int mlx5_destroy_scheduling_element_cmd(struct mlx5_core_dev *dev, u8 hierarchy,
 int mlx5_wait_for_vf_pages(struct mlx5_core_dev *dev);
 u64 mlx5_read_internal_timer(struct mlx5_core_dev *dev);
 struct mlx5_eq *mlx5_eqn2eq(struct mlx5_core_dev *dev, int eqn);
+u32 mlx5_eq_poll_irq_disabled(struct mlx5_eq *eq);
 void mlx5_cq_tasklet_cb(unsigned long data);
 
 int mlx5_query_pcam_reg(struct mlx5_core_dev *dev, u32 *pcam, u8 feature_group,

drivers/net/ethernet/mellanox/mlx5/core/transobj.c

@@ -413,6 +413,7 @@ static int mlx5_hairpin_create_rq(struct mlx5_core_dev *mdev,
 	MLX5_SET(rqc, rqc, counter_set_id, params->q_counter);
 
 	MLX5_SET(wq, wq, log_hairpin_data_sz, params->log_data_size);
+	MLX5_SET(wq, wq, log_hairpin_num_packets, params->log_num_packets);
 
 	return mlx5_core_create_rq(mdev, in, MLX5_ST_SZ_BYTES(create_rq_in), rqn);
 }
@@ -430,6 +431,7 @@ static int mlx5_hairpin_create_sq(struct mlx5_core_dev *mdev,
 	MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
 
 	MLX5_SET(wq, wq, log_hairpin_data_sz, params->log_data_size);
+	MLX5_SET(wq, wq, log_hairpin_num_packets, params->log_num_packets);
 
 	return mlx5_core_create_sq(mdev, in, MLX5_ST_SZ_BYTES(create_sq_in), sqn);
 }
@@ -437,28 +439,40 @@ static int mlx5_hairpin_create_sq(struct mlx5_core_dev *mdev,
 static int mlx5_hairpin_create_queues(struct mlx5_hairpin *hp,
 				      struct mlx5_hairpin_params *params)
 {
-	int err;
+	int i, j, err;
 
-	err = mlx5_hairpin_create_rq(hp->func_mdev, params, &hp->rqn);
-	if (err)
-		goto out_err_rq;
+	for (i = 0; i < hp->num_channels; i++) {
+		err = mlx5_hairpin_create_rq(hp->func_mdev, params, &hp->rqn[i]);
+		if (err)
+			goto out_err_rq;
+	}
 
-	err = mlx5_hairpin_create_sq(hp->peer_mdev, params, &hp->sqn);
-	if (err)
-		goto out_err_sq;
+	for (i = 0; i < hp->num_channels; i++) {
+		err = mlx5_hairpin_create_sq(hp->peer_mdev, params, &hp->sqn[i]);
+		if (err)
+			goto out_err_sq;
+	}
 
 	return 0;
 
 out_err_sq:
-	mlx5_core_destroy_rq(hp->func_mdev, hp->rqn);
+	for (j = 0; j < i; j++)
+		mlx5_core_destroy_sq(hp->peer_mdev, hp->sqn[j]);
+	i = hp->num_channels;
 out_err_rq:
+	for (j = 0; j < i; j++)
+		mlx5_core_destroy_rq(hp->func_mdev, hp->rqn[j]);
 	return err;
 }
 
 static void mlx5_hairpin_destroy_queues(struct mlx5_hairpin *hp)
 {
-	mlx5_core_destroy_rq(hp->func_mdev, hp->rqn);
-	mlx5_core_destroy_sq(hp->peer_mdev, hp->sqn);
+	int i;
+
+	for (i = 0; i < hp->num_channels; i++) {
+		mlx5_core_destroy_rq(hp->func_mdev, hp->rqn[i]);
+		mlx5_core_destroy_sq(hp->peer_mdev, hp->sqn[i]);
+	}
 }
 
 static int mlx5_hairpin_modify_rq(struct mlx5_core_dev *func_mdev, u32 rqn,
@@ -505,41 +519,53 @@ static int mlx5_hairpin_modify_sq(struct mlx5_core_dev *peer_mdev, u32 sqn,
 
 static int mlx5_hairpin_pair_queues(struct mlx5_hairpin *hp)
 {
-	int err;
+	int i, j, err;
 
-	/* set peer SQ */
-	err = mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn,
-				     MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY,
-				     MLX5_CAP_GEN(hp->func_mdev, vhca_id), hp->rqn);
-	if (err)
-		goto err_modify_sq;
-
-	/* set func RQ */
-	err = mlx5_hairpin_modify_rq(hp->func_mdev, hp->rqn,
-				     MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY,
-				     MLX5_CAP_GEN(hp->peer_mdev, vhca_id), hp->sqn);
+	/* set peer SQs */
+	for (i = 0; i < hp->num_channels; i++) {
+		err = mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn[i],
+					     MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY,
+					     MLX5_CAP_GEN(hp->func_mdev, vhca_id), hp->rqn[i]);
+		if (err)
+			goto err_modify_sq;
+	}
 
-	if (err)
-		goto err_modify_rq;
+	/* set func RQs */
+	for (i = 0; i < hp->num_channels; i++) {
+		err = mlx5_hairpin_modify_rq(hp->func_mdev, hp->rqn[i],
+					     MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY,
+					     MLX5_CAP_GEN(hp->peer_mdev, vhca_id), hp->sqn[i]);
+		if (err)
+			goto err_modify_rq;
+	}
 
 	return 0;
 
 err_modify_rq:
-	mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn, MLX5_SQC_STATE_RDY,
-			       MLX5_SQC_STATE_RST, 0, 0);
+	for (j = 0; j < i; j++)
+		mlx5_hairpin_modify_rq(hp->func_mdev, hp->rqn[j], MLX5_RQC_STATE_RDY,
+				       MLX5_RQC_STATE_RST, 0, 0);
+	i = hp->num_channels;
 err_modify_sq:
+	for (j = 0; j < i; j++)
+		mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn[j], MLX5_SQC_STATE_RDY,
+				       MLX5_SQC_STATE_RST, 0, 0);
 	return err;
 }
 
 static void mlx5_hairpin_unpair_queues(struct mlx5_hairpin *hp)
 {
-	/* unset func RQ */
-	mlx5_hairpin_modify_rq(hp->func_mdev, hp->rqn, MLX5_RQC_STATE_RDY,
-			       MLX5_RQC_STATE_RST, 0, 0);
+	int i;
+
+	/* unset func RQs */
+	for (i = 0; i < hp->num_channels; i++)
+		mlx5_hairpin_modify_rq(hp->func_mdev, hp->rqn[i], MLX5_RQC_STATE_RDY,
+				       MLX5_RQC_STATE_RST, 0, 0);
 
-	/* unset peer SQ */
-	mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn, MLX5_SQC_STATE_RDY,
-			       MLX5_SQC_STATE_RST, 0, 0);
+	/* unset peer SQs */
+	for (i = 0; i < hp->num_channels; i++)
+		mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn[i], MLX5_SQC_STATE_RDY,
+				       MLX5_SQC_STATE_RST, 0, 0);
 }
 
 struct mlx5_hairpin *
@@ -550,13 +576,17 @@ mlx5_core_hairpin_create(struct mlx5_core_dev *func_mdev,
 	struct mlx5_hairpin *hp;
 	int size, err;
 
-	size = sizeof(*hp);
+	size = sizeof(*hp) + params->num_channels * 2 * sizeof(u32);
 	hp = kzalloc(size, GFP_KERNEL);
 	if (!hp)
 		return ERR_PTR(-ENOMEM);
 
 	hp->func_mdev = func_mdev;
 	hp->peer_mdev = peer_mdev;
+	hp->num_channels = params->num_channels;
+
+	hp->rqn = (void *)hp + sizeof(*hp);
+	hp->sqn = hp->rqn + params->num_channels;
 
 	/* alloc and pair func --> peer hairpin */
 	err = mlx5_hairpin_create_queues(hp, params);

include/linux/mlx5/mlx5_ifc.h

@@ -1031,7 +1031,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         log_max_hairpin_queues[0x5];
 	u8         reserved_at_3c8[0x3];
 	u8         log_max_hairpin_wq_data_sz[0x5];
-	u8         reserved_at_3d0[0xb];
+	u8         reserved_at_3d0[0x3];
+	u8         log_max_hairpin_num_packets[0x5];
+	u8         reserved_at_3d8[0x3];
 	u8         log_max_wq_sz[0x5];
 
 	u8         nic_vport_change_event[0x1];
@@ -1172,7 +1174,9 @@ struct mlx5_ifc_wq_bits {
 	u8         reserved_at_118[0x3];
 	u8         log_wq_sz[0x5];
 
-	u8         reserved_at_120[0xb];
+	u8         reserved_at_120[0x3];
+	u8         log_hairpin_num_packets[0x5];
+	u8         reserved_at_128[0x3];
 	u8         log_hairpin_data_sz[0x5];
 	u8         reserved_at_130[0x5];
 

include/linux/mlx5/transobj.h

@@ -77,15 +77,19 @@ void mlx5_core_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn);
 
 struct mlx5_hairpin_params {
 	u8  log_data_size;
+	u8  log_num_packets;
 	u16 q_counter;
+	int num_channels;
 };
 
 struct mlx5_hairpin {
 	struct mlx5_core_dev *func_mdev;
 	struct mlx5_core_dev *peer_mdev;
 
-	u32 rqn;
-	u32 sqn;
+	int num_channels;
+
+	u32 *rqn;
+	u32 *sqn;
 };
 
 struct mlx5_hairpin *