Merge branch 'mlx5-fixes-2023-11-13-manual'

Saeed Mahameed says:

====================
This series provides bug fixes to mlx5 driver.
====================

Link: https://lore.kernel.org/r/20231114215846.5902-1-saeed@kernel.org/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kuba-moo

drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c

@@ -177,6 +177,8 @@ static void mlx5e_ptpsq_mark_ts_cqes_undelivered(struct mlx5e_ptpsq *ptpsq,
 
 static void mlx5e_ptp_handle_ts_cqe(struct mlx5e_ptpsq *ptpsq,
 				    struct mlx5_cqe64 *cqe,
+				    u8 *md_buff,
+				    u8 *md_buff_sz,
 				    int budget)
 {
 	struct mlx5e_ptp_port_ts_cqe_list *pending_cqe_list = ptpsq->ts_cqe_pending_list;
@@ -211,19 +213,24 @@ static void mlx5e_ptp_handle_ts_cqe(struct mlx5e_ptpsq *ptpsq,
 	mlx5e_ptpsq_mark_ts_cqes_undelivered(ptpsq, hwtstamp);
 out:
 	napi_consume_skb(skb, budget);
-	mlx5e_ptp_metadata_fifo_push(&ptpsq->metadata_freelist, metadata_id);
+	md_buff[*md_buff_sz++] = metadata_id;
 	if (unlikely(mlx5e_ptp_metadata_map_unhealthy(&ptpsq->metadata_map)) &&
 	    !test_and_set_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state))
 		queue_work(ptpsq->txqsq.priv->wq, &ptpsq->report_unhealthy_work);
 }
 
-static bool mlx5e_ptp_poll_ts_cq(struct mlx5e_cq *cq, int budget)
+static bool mlx5e_ptp_poll_ts_cq(struct mlx5e_cq *cq, int napi_budget)
 {
 	struct mlx5e_ptpsq *ptpsq = container_of(cq, struct mlx5e_ptpsq, ts_cq);
-	struct mlx5_cqwq *cqwq = &cq->wq;
+	int budget = min(napi_budget, MLX5E_TX_CQ_POLL_BUDGET);
+	u8 metadata_buff[MLX5E_TX_CQ_POLL_BUDGET];
+	u8 metadata_buff_sz = 0;
+	struct mlx5_cqwq *cqwq;
 	struct mlx5_cqe64 *cqe;
 	int work_done = 0;
 
+	cqwq = &cq->wq;
+
 	if (unlikely(!test_bit(MLX5E_SQ_STATE_ENABLED, &ptpsq->txqsq.state)))
 		return false;
 
@@ -234,14 +241,19 @@ static bool mlx5e_ptp_poll_ts_cq(struct mlx5e_cq *cq, int budget)
 	do {
 		mlx5_cqwq_pop(cqwq);
 
-		mlx5e_ptp_handle_ts_cqe(ptpsq, cqe, budget);
+		mlx5e_ptp_handle_ts_cqe(ptpsq, cqe,
+					metadata_buff, &metadata_buff_sz, napi_budget);
 	} while ((++work_done < budget) && (cqe = mlx5_cqwq_get_cqe(cqwq)));
 
 	mlx5_cqwq_update_db_record(cqwq);
 
 	/* ensure cq space is freed before enabling more cqes */
 	wmb();
 
+	while (metadata_buff_sz > 0)
+		mlx5e_ptp_metadata_fifo_push(&ptpsq->metadata_freelist,
+					     metadata_buff[--metadata_buff_sz]);
+
 	mlx5e_txqsq_wake(&ptpsq->txqsq);
 
 	return work_done == budget;

drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c

@@ -492,11 +492,11 @@ static int mlx5e_rx_reporter_dump(struct devlink_health_reporter *reporter,
 
 void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
 {
-	char icosq_str[MLX5E_REPORTER_PER_Q_MAX_LEN] = {};
 	char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
 	struct mlx5e_icosq *icosq = rq->icosq;
 	struct mlx5e_priv *priv = rq->priv;
 	struct mlx5e_err_ctx err_ctx = {};
+	char icosq_str[32] = {};
 
 	err_ctx.ctx = rq;
 	err_ctx.recover = mlx5e_rx_reporter_timeout_recover;
@@ -505,7 +505,7 @@ void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
 	if (icosq)
 		snprintf(icosq_str, sizeof(icosq_str), "ICOSQ: 0x%x, ", icosq->sqn);
 	snprintf(err_str, sizeof(err_str),
-		 "RX timeout on channel: %d, %sRQ: 0x%x, CQ: 0x%x",
+		 "RX timeout on channel: %d, %s RQ: 0x%x, CQ: 0x%x",
 		 rq->ix, icosq_str, rq->rqn, rq->cq.mcq.cqn);
 
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);

drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c

@@ -300,9 +300,6 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv,
 	if (err)
 		goto destroy_neigh_entry;
 
-	e->encap_size = ipv4_encap_size;
-	e->encap_header = encap_header;
-
 	if (!(nud_state & NUD_VALID)) {
 		neigh_event_send(attr.n, NULL);
 		/* the encap entry will be made valid on neigh update event
@@ -322,6 +319,8 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv,
 		goto destroy_neigh_entry;
 	}
 
+	e->encap_size = ipv4_encap_size;
+	e->encap_header = encap_header;
 	e->flags |= MLX5_ENCAP_ENTRY_VALID;
 	mlx5e_rep_queue_neigh_stats_work(netdev_priv(attr.out_dev));
 	mlx5e_route_lookup_ipv4_put(&attr);
@@ -404,16 +403,12 @@ int mlx5e_tc_tun_update_header_ipv4(struct mlx5e_priv *priv,
 	if (err)
 		goto free_encap;
 
-	e->encap_size = ipv4_encap_size;
-	kfree(e->encap_header);
-	e->encap_header = encap_header;
-
 	if (!(nud_state & NUD_VALID)) {
 		neigh_event_send(attr.n, NULL);
 		/* the encap entry will be made valid on neigh update event
 		 * and not used before that.
 		 */
-		goto release_neigh;
+		goto free_encap;
 	}
 
 	memset(&reformat_params, 0, sizeof(reformat_params));
@@ -427,6 +422,10 @@ int mlx5e_tc_tun_update_header_ipv4(struct mlx5e_priv *priv,
 		goto free_encap;
 	}
 
+	e->encap_size = ipv4_encap_size;
+	kfree(e->encap_header);
+	e->encap_header = encap_header;
+
 	e->flags |= MLX5_ENCAP_ENTRY_VALID;
 	mlx5e_rep_queue_neigh_stats_work(netdev_priv(attr.out_dev));
 	mlx5e_route_lookup_ipv4_put(&attr);
@@ -568,9 +567,6 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
 	if (err)
 		goto destroy_neigh_entry;
 
-	e->encap_size = ipv6_encap_size;
-	e->encap_header = encap_header;
-
 	if (!(nud_state & NUD_VALID)) {
 		neigh_event_send(attr.n, NULL);
 		/* the encap entry will be made valid on neigh update event
@@ -590,6 +586,8 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
 		goto destroy_neigh_entry;
 	}
 
+	e->encap_size = ipv6_encap_size;
+	e->encap_header = encap_header;
 	e->flags |= MLX5_ENCAP_ENTRY_VALID;
 	mlx5e_rep_queue_neigh_stats_work(netdev_priv(attr.out_dev));
 	mlx5e_route_lookup_ipv6_put(&attr);
@@ -671,16 +669,12 @@ int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
 	if (err)
 		goto free_encap;
 
-	e->encap_size = ipv6_encap_size;
-	kfree(e->encap_header);
-	e->encap_header = encap_header;
-
 	if (!(nud_state & NUD_VALID)) {
 		neigh_event_send(attr.n, NULL);
 		/* the encap entry will be made valid on neigh update event
 		 * and not used before that.
 		 */
-		goto release_neigh;
+		goto free_encap;
 	}
 
 	memset(&reformat_params, 0, sizeof(reformat_params));
@@ -694,6 +688,10 @@ int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
 		goto free_encap;
 	}
 
+	e->encap_size = ipv6_encap_size;
+	kfree(e->encap_header);
+	e->encap_header = encap_header;
+
 	e->flags |= MLX5_ENCAP_ENTRY_VALID;
 	mlx5e_rep_queue_neigh_stats_work(netdev_priv(attr.out_dev));
 	mlx5e_route_lookup_ipv6_put(&attr);

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

@@ -43,12 +43,17 @@ void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
 			       struct ethtool_drvinfo *drvinfo)
 {
 	struct mlx5_core_dev *mdev = priv->mdev;
+	int count;
 
 	strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
-	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
-		 "%d.%d.%04d (%.16s)",
-		 fw_rev_maj(mdev), fw_rev_min(mdev), fw_rev_sub(mdev),
-		 mdev->board_id);
+	count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+			 "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
+			 fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
+	if (count == sizeof(drvinfo->fw_version))
+		snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+			 "%d.%d.%04d", fw_rev_maj(mdev),
+			 fw_rev_min(mdev), fw_rev_sub(mdev));
+
 	strscpy(drvinfo->bus_info, dev_name(mdev->device),
 		sizeof(drvinfo->bus_info));
 }

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

@@ -71,13 +71,17 @@ static void mlx5e_rep_get_drvinfo(struct net_device *dev,
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	struct mlx5_core_dev *mdev = priv->mdev;
+	int count;
 
 	strscpy(drvinfo->driver, mlx5e_rep_driver_name,
 		sizeof(drvinfo->driver));
-	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
-		 "%d.%d.%04d (%.16s)",
-		 fw_rev_maj(mdev), fw_rev_min(mdev),
-		 fw_rev_sub(mdev), mdev->board_id);
+	count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+			 "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
+			 fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
+	if (count == sizeof(drvinfo->fw_version))
+		snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+			 "%d.%d.%04d", fw_rev_maj(mdev),
+			 fw_rev_min(mdev), fw_rev_sub(mdev));
 }
 
 static const struct counter_desc sw_rep_stats_desc[] = {

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

@@ -3147,7 +3147,7 @@ static struct mlx5_fields fields[] = {
 	OFFLOAD(DIPV6_31_0,   32, U32_MAX, ip6.daddr.s6_addr32[3], 0,
 		dst_ipv4_dst_ipv6.ipv6_layout.ipv6[12]),
 	OFFLOAD(IPV6_HOPLIMIT, 8,  U8_MAX, ip6.hop_limit, 0, ttl_hoplimit),
-	OFFLOAD(IP_DSCP, 16,  0xc00f, ip6, 0, ip_dscp),
+	OFFLOAD(IP_DSCP, 16,  0x0fc0, ip6, 0, ip_dscp),
 
 	OFFLOAD(TCP_SPORT, 16, U16_MAX, tcp.source,  0, tcp_sport),
 	OFFLOAD(TCP_DPORT, 16, U16_MAX, tcp.dest,    0, tcp_dport),
@@ -3158,21 +3158,31 @@ static struct mlx5_fields fields[] = {
 	OFFLOAD(UDP_DPORT, 16, U16_MAX, udp.dest,   0, udp_dport),
 };
 
-static unsigned long mask_to_le(unsigned long mask, int size)
+static u32 mask_field_get(void *mask, struct mlx5_fields *f)
 {
-	__be32 mask_be32;
-	__be16 mask_be16;
-
-	if (size == 32) {
-		mask_be32 = (__force __be32)(mask);
-		mask = (__force unsigned long)cpu_to_le32(be32_to_cpu(mask_be32));
-	} else if (size == 16) {
-		mask_be32 = (__force __be32)(mask);
-		mask_be16 = *(__be16 *)&mask_be32;
-		mask = (__force unsigned long)cpu_to_le16(be16_to_cpu(mask_be16));
+	switch (f->field_bsize) {
+	case 32:
+		return be32_to_cpu(*(__be32 *)mask) & f->field_mask;
+	case 16:
+		return be16_to_cpu(*(__be16 *)mask) & (u16)f->field_mask;
+	default:
+		return *(u8 *)mask & (u8)f->field_mask;
 	}
+}
 
-	return mask;
+static void mask_field_clear(void *mask, struct mlx5_fields *f)
+{
+	switch (f->field_bsize) {
+	case 32:
+		*(__be32 *)mask &= ~cpu_to_be32(f->field_mask);
+		break;
+	case 16:
+		*(__be16 *)mask &= ~cpu_to_be16((u16)f->field_mask);
+		break;
+	default:
+		*(u8 *)mask &= ~(u8)f->field_mask;
+		break;
+	}
 }
 
 static int offload_pedit_fields(struct mlx5e_priv *priv,
@@ -3184,11 +3194,12 @@ static int offload_pedit_fields(struct mlx5e_priv *priv,
 	struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals;
 	struct pedit_headers_action *hdrs = parse_attr->hdrs;
 	void *headers_c, *headers_v, *action, *vals_p;
-	u32 *s_masks_p, *a_masks_p, s_mask, a_mask;
 	struct mlx5e_tc_mod_hdr_acts *mod_acts;
-	unsigned long mask, field_mask;
+	void *s_masks_p, *a_masks_p;
 	int i, first, last, next_z;
 	struct mlx5_fields *f;
+	unsigned long mask;
+	u32 s_mask, a_mask;
 	u8 cmd;
 
 	mod_acts = &parse_attr->mod_hdr_acts;
@@ -3204,15 +3215,11 @@ static int offload_pedit_fields(struct mlx5e_priv *priv,
 		bool skip;
 
 		f = &fields[i];
-		/* avoid seeing bits set from previous iterations */
-		s_mask = 0;
-		a_mask = 0;
-
 		s_masks_p = (void *)set_masks + f->offset;
 		a_masks_p = (void *)add_masks + f->offset;
 
-		s_mask = *s_masks_p & f->field_mask;
-		a_mask = *a_masks_p & f->field_mask;
+		s_mask = mask_field_get(s_masks_p, f);
+		a_mask = mask_field_get(a_masks_p, f);
 
 		if (!s_mask && !a_mask) /* nothing to offload here */
 			continue;
@@ -3239,22 +3246,20 @@ static int offload_pedit_fields(struct mlx5e_priv *priv,
 					 match_mask, f->field_bsize))
 				skip = true;
 			/* clear to denote we consumed this field */
-			*s_masks_p &= ~f->field_mask;
+			mask_field_clear(s_masks_p, f);
 		} else {
 			cmd  = MLX5_ACTION_TYPE_ADD;
 			mask = a_mask;
 			vals_p = (void *)add_vals + f->offset;
 			/* add 0 is no change */
-			if ((*(u32 *)vals_p & f->field_mask) == 0)
+			if (!mask_field_get(vals_p, f))
 				skip = true;
 			/* clear to denote we consumed this field */
-			*a_masks_p &= ~f->field_mask;
+			mask_field_clear(a_masks_p, f);
 		}
 		if (skip)
 			continue;
 
-		mask = mask_to_le(mask, f->field_bsize);
-
 		first = find_first_bit(&mask, f->field_bsize);
 		next_z = find_next_zero_bit(&mask, f->field_bsize, first);
 		last  = find_last_bit(&mask, f->field_bsize);
@@ -3281,10 +3286,9 @@ static int offload_pedit_fields(struct mlx5e_priv *priv,
 		MLX5_SET(set_action_in, action, field, f->field);
 
 		if (cmd == MLX5_ACTION_TYPE_SET) {
+			unsigned long field_mask = f->field_mask;
 			int start;
 
-			field_mask = mask_to_le(f->field_mask, f->field_bsize);
-
 			/* if field is bit sized it can start not from first bit */
 			start = find_first_bit(&field_mask, f->field_bsize);
 

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

@@ -399,9 +399,9 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 		u8 metadata_index = be32_to_cpu(eseg->flow_table_metadata);
 
 		mlx5e_skb_cb_hwtstamp_init(skb);
-		mlx5e_ptpsq_track_metadata(sq->ptpsq, metadata_index);
 		mlx5e_ptp_metadata_map_put(&sq->ptpsq->metadata_map, skb,
 					   metadata_index);
+		mlx5e_ptpsq_track_metadata(sq->ptpsq, metadata_index);
 		if (!netif_tx_queue_stopped(sq->txq) &&
 		    mlx5e_ptpsq_metadata_freelist_empty(sq->ptpsq)) {
 			netif_tx_stop_queue(sq->txq);
@@ -494,10 +494,10 @@ mlx5e_sq_xmit_wqe(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 
 err_drop:
 	stats->dropped++;
-	dev_kfree_skb_any(skb);
 	if (unlikely(sq->ptpsq && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)))
 		mlx5e_ptp_metadata_fifo_push(&sq->ptpsq->metadata_freelist,
 					     be32_to_cpu(eseg->flow_table_metadata));
+	dev_kfree_skb_any(skb);
 	mlx5e_tx_flush(sq);
 }