Merge tag 'mlx5-updates-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2023-02-07

1) Minor and trivial code Cleanups

2) Minor fixes for net-next

3) From Shay: dynamic FW trace strings update.

* tag 'mlx5-updates-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: fw_tracer, Add support for unrecognized string
  net/mlx5: fw_tracer, Add support for strings DB update event
  net/mlx5: fw_tracer, allow 0 size string DBs
  net/mlx5: fw_tracer: Fix debug print
  net/mlx5: fs, Remove redundant assignment of size
  net/mlx5: fs_core, Remove redundant variable err
  net/mlx5: Fix memory leak in error flow of port set buffer
  net/mlx5e: Remove incorrect debugfs_create_dir NULL check in TLS
  net/mlx5e: Remove incorrect debugfs_create_dir NULL check in hairpin
  net/mlx5: fs, Remove redundant vport_number assignment
  net/mlx5e: Remove redundant code for handling vlan actions
  net/mlx5e: Don't listen to remove flows event
  net/mlx5: fw reset: Skip device ID check if PCI link up failed
  net/mlx5: Remove redundant health work lock
  mlx5: reduce stack usage in mlx5_setup_tc
====================

Link: https://lore.kernel.org/r/20230208003712.68386-1-saeed@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c

@@ -233,6 +233,8 @@ static int mlx5_fw_tracer_allocate_strings_db(struct mlx5_fw_tracer *tracer)
 	int i;
 
 	for (i = 0; i < num_string_db; i++) {
+		if (!string_db_size_out[i])
+			continue;
 		tracer->str_db.buffer[i] = kzalloc(string_db_size_out[i], GFP_KERNEL);
 		if (!tracer->str_db.buffer[i])
 			goto free_strings_db;
@@ -278,6 +280,8 @@ static void mlx5_tracer_read_strings_db(struct work_struct *work)
 	}
 
 	for (i = 0; i < num_string_db; i++) {
+		if (!tracer->str_db.size_out[i])
+			continue;
 		offset = 0;
 		MLX5_SET(mtrc_stdb, in, string_db_index, i);
 		num_of_reads = tracer->str_db.size_out[i] /
@@ -384,6 +388,8 @@ static struct tracer_string_format *mlx5_tracer_get_string(struct mlx5_fw_tracer
 	str_ptr = tracer_event->string_event.string_param;
 
 	for (i = 0; i < tracer->str_db.num_string_db; i++) {
+		if (!tracer->str_db.size_out[i])
+			continue;
 		if (str_ptr > tracer->str_db.base_address_out[i] &&
 		    str_ptr < tracer->str_db.base_address_out[i] +
 		    tracer->str_db.size_out[i]) {
@@ -459,6 +465,7 @@ static void poll_trace(struct mlx5_fw_tracer *tracer,
 
 	tracer_event->event_id = MLX5_GET(tracer_event, trace, event_id);
 	tracer_event->lost_event = MLX5_GET(tracer_event, trace, lost);
+	tracer_event->out = trace;
 
 	switch (tracer_event->event_id) {
 	case TRACER_EVENT_TYPE_TIMESTAMP:
@@ -581,6 +588,26 @@ void mlx5_tracer_print_trace(struct tracer_string_format *str_frmt,
 	mlx5_tracer_clean_message(str_frmt);
 }
 
+static int mlx5_tracer_handle_raw_string(struct mlx5_fw_tracer *tracer,
+					 struct tracer_event *tracer_event)
+{
+	struct tracer_string_format *cur_string;
+
+	cur_string = mlx5_tracer_message_insert(tracer, tracer_event);
+	if (!cur_string)
+		return -1;
+
+	cur_string->event_id = tracer_event->event_id;
+	cur_string->timestamp = tracer_event->string_event.timestamp;
+	cur_string->lost = tracer_event->lost_event;
+	cur_string->string = "0x%08x%08x";
+	cur_string->num_of_params = 2;
+	cur_string->params[0] = upper_32_bits(*tracer_event->out);
+	cur_string->params[1] = lower_32_bits(*tracer_event->out);
+	list_add_tail(&cur_string->list, &tracer->ready_strings_list);
+	return 0;
+}
+
 static int mlx5_tracer_handle_string_trace(struct mlx5_fw_tracer *tracer,
 					   struct tracer_event *tracer_event)
 {
@@ -589,7 +616,7 @@ static int mlx5_tracer_handle_string_trace(struct mlx5_fw_tracer *tracer,
 	if (tracer_event->string_event.tdsn == 0) {
 		cur_string = mlx5_tracer_get_string(tracer, tracer_event);
 		if (!cur_string)
-			return -1;
+			return mlx5_tracer_handle_raw_string(tracer, tracer_event);
 
 		cur_string->num_of_params = mlx5_tracer_get_num_of_params(cur_string->string);
 		cur_string->last_param_num = 0;
@@ -602,9 +629,9 @@ static int mlx5_tracer_handle_string_trace(struct mlx5_fw_tracer *tracer,
 	} else {
 		cur_string = mlx5_tracer_message_get(tracer, tracer_event);
 		if (!cur_string) {
-			pr_debug("%s Got string event for unknown string tdsm: %d\n",
+			pr_debug("%s Got string event for unknown string tmsn: %d\n",
 				 __func__, tracer_event->string_event.tmsn);
-			return -1;
+			return mlx5_tracer_handle_raw_string(tracer, tracer_event);
 		}
 		cur_string->last_param_num += 1;
 		if (cur_string->last_param_num > TRACER_MAX_PARAMS) {
@@ -930,6 +957,14 @@ int mlx5_fw_tracer_get_saved_traces_objects(struct mlx5_fw_tracer *tracer,
 	return err;
 }
 
+static void mlx5_fw_tracer_update_db(struct work_struct *work)
+{
+	struct mlx5_fw_tracer *tracer =
+			container_of(work, struct mlx5_fw_tracer, update_db_work);
+
+	mlx5_fw_tracer_reload(tracer);
+}
+
 /* Create software resources (Buffers, etc ..) */
 struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev)
 {
@@ -957,6 +992,8 @@ struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev)
 	INIT_WORK(&tracer->ownership_change_work, mlx5_fw_tracer_ownership_change);
 	INIT_WORK(&tracer->read_fw_strings_work, mlx5_tracer_read_strings_db);
 	INIT_WORK(&tracer->handle_traces_work, mlx5_fw_tracer_handle_traces);
+	INIT_WORK(&tracer->update_db_work, mlx5_fw_tracer_update_db);
+	mutex_init(&tracer->state_lock);
 
 
 	err = mlx5_query_mtrc_caps(tracer);
@@ -1003,11 +1040,15 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer)
 	if (IS_ERR_OR_NULL(tracer))
 		return 0;
 
-	dev = tracer->dev;
-
 	if (!tracer->str_db.loaded)
 		queue_work(tracer->work_queue, &tracer->read_fw_strings_work);
 
+	mutex_lock(&tracer->state_lock);
+	if (test_and_set_bit(MLX5_TRACER_STATE_UP, &tracer->state))
+		goto unlock;
+
+	dev = tracer->dev;
+
 	err = mlx5_core_alloc_pd(dev, &tracer->buff.pdn);
 	if (err) {
 		mlx5_core_warn(dev, "FWTracer: Failed to allocate PD %d\n", err);
@@ -1028,6 +1069,8 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer)
 		mlx5_core_warn(dev, "FWTracer: Failed to start tracer %d\n", err);
 		goto err_notifier_unregister;
 	}
+unlock:
+	mutex_unlock(&tracer->state_lock);
 	return 0;
 
 err_notifier_unregister:
@@ -1037,6 +1080,7 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer)
 	mlx5_core_dealloc_pd(dev, tracer->buff.pdn);
 err_cancel_work:
 	cancel_work_sync(&tracer->read_fw_strings_work);
+	mutex_unlock(&tracer->state_lock);
 	return err;
 }
 
@@ -1046,17 +1090,27 @@ void mlx5_fw_tracer_cleanup(struct mlx5_fw_tracer *tracer)
 	if (IS_ERR_OR_NULL(tracer))
 		return;
 
+	mutex_lock(&tracer->state_lock);
+	if (!test_and_clear_bit(MLX5_TRACER_STATE_UP, &tracer->state))
+		goto unlock;
+
 	mlx5_core_dbg(tracer->dev, "FWTracer: Cleanup, is owner ? (%d)\n",
 		      tracer->owner);
 	mlx5_eq_notifier_unregister(tracer->dev, &tracer->nb);
 	cancel_work_sync(&tracer->ownership_change_work);
 	cancel_work_sync(&tracer->handle_traces_work);
+	/* It is valid to get here from update_db_work. Hence, don't wait for
+	 * update_db_work to finished.
+	 */
+	cancel_work(&tracer->update_db_work);
 
 	if (tracer->owner)
 		mlx5_fw_tracer_ownership_release(tracer);
 
 	mlx5_core_destroy_mkey(tracer->dev, tracer->buff.mkey);
 	mlx5_core_dealloc_pd(tracer->dev, tracer->buff.pdn);
+unlock:
+	mutex_unlock(&tracer->state_lock);
 }
 
 /* Free software resources (Buffers, etc ..) */
@@ -1073,6 +1127,7 @@ void mlx5_fw_tracer_destroy(struct mlx5_fw_tracer *tracer)
 	mlx5_fw_tracer_clean_saved_traces_array(tracer);
 	mlx5_fw_tracer_free_strings_db(tracer);
 	mlx5_fw_tracer_destroy_log_buf(tracer);
+	mutex_destroy(&tracer->state_lock);
 	destroy_workqueue(tracer->work_queue);
 	kvfree(tracer);
 }
@@ -1082,6 +1137,8 @@ static int mlx5_fw_tracer_recreate_strings_db(struct mlx5_fw_tracer *tracer)
 	struct mlx5_core_dev *dev;
 	int err;
 
+	if (test_and_set_bit(MLX5_TRACER_RECREATE_DB, &tracer->state))
+		return 0;
 	cancel_work_sync(&tracer->read_fw_strings_work);
 	mlx5_fw_tracer_clean_ready_list(tracer);
 	mlx5_fw_tracer_clean_print_hash(tracer);
@@ -1092,17 +1149,18 @@ static int mlx5_fw_tracer_recreate_strings_db(struct mlx5_fw_tracer *tracer)
 	err = mlx5_query_mtrc_caps(tracer);
 	if (err) {
 		mlx5_core_dbg(dev, "FWTracer: Failed to query capabilities %d\n", err);
-		return err;
+		goto out;
 	}
 
 	err = mlx5_fw_tracer_allocate_strings_db(tracer);
 	if (err) {
 		mlx5_core_warn(dev, "FWTracer: Allocate strings DB failed %d\n", err);
-		return err;
+		goto out;
 	}
 	mlx5_fw_tracer_init_saved_traces_array(tracer);
-
-	return 0;
+out:
+	clear_bit(MLX5_TRACER_RECREATE_DB, &tracer->state);
+	return err;
 }
 
 int mlx5_fw_tracer_reload(struct mlx5_fw_tracer *tracer)
@@ -1142,6 +1200,9 @@ static int fw_tracer_event(struct notifier_block *nb, unsigned long action, void
 	case MLX5_TRACER_SUBTYPE_TRACES_AVAILABLE:
 		queue_work(tracer->work_queue, &tracer->handle_traces_work);
 		break;
+	case MLX5_TRACER_SUBTYPE_STRINGS_DB_UPDATE:
+		queue_work(tracer->work_queue, &tracer->update_db_work);
+		break;
 	default:
 		mlx5_core_dbg(dev, "FWTracer: Event with unrecognized subtype: sub_type %d\n",
 			      eqe->sub_type);

drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.h

@@ -63,6 +63,11 @@ struct mlx5_fw_trace_data {
 	char msg[TRACE_STR_MSG];
 };
 
+enum mlx5_fw_tracer_state {
+	MLX5_TRACER_STATE_UP = BIT(0),
+	MLX5_TRACER_RECREATE_DB = BIT(1),
+};
+
 struct mlx5_fw_tracer {
 	struct mlx5_core_dev *dev;
 	struct mlx5_nb        nb;
@@ -104,6 +109,9 @@ struct mlx5_fw_tracer {
 	struct work_struct handle_traces_work;
 	struct hlist_head hash[MESSAGE_HASH_SIZE];
 	struct list_head ready_strings_list;
+	struct work_struct update_db_work;
+	struct mutex state_lock; /* Synchronize update work with reload flows */
+	unsigned long state;
 };
 
 struct tracer_string_format {
@@ -158,6 +166,7 @@ struct tracer_event {
 		struct tracer_string_event string_event;
 		struct tracer_timestamp_event timestamp_event;
 	};
+	u64 *out;
 };
 
 struct mlx5_ifc_tracer_event_bits {

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

@@ -314,11 +314,11 @@ static int port_set_buffer(struct mlx5e_priv *priv,
 	err = port_update_shared_buffer(priv->mdev, current_headroom_size,
 					new_headroom_size);
 	if (err)
-		return err;
+		goto out;
 
 	err = port_update_pool_cfg(priv->mdev, port_buffer);
 	if (err)
-		return err;
+		goto out;
 
 	err = mlx5e_port_set_pbmc(mdev, in);
 out:

drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/vlan.c

@@ -44,19 +44,17 @@ parse_tc_vlan_action(struct mlx5e_priv *priv,
 		return -EOPNOTSUPP;
 	}
 
+	if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, vlan_idx)) {
+		NL_SET_ERR_MSG_MOD(extack, "firmware vlan actions is not supported");
+		return -EOPNOTSUPP;
+	}
+
 	switch (act->id) {
 	case FLOW_ACTION_VLAN_POP:
-		if (vlan_idx) {
-			if (!mlx5_eswitch_vlan_actions_supported(priv->mdev,
-								 MLX5_FS_VLAN_DEPTH)) {
-				NL_SET_ERR_MSG_MOD(extack, "vlan pop action is not supported");
-				return -EOPNOTSUPP;
-			}
-
+		if (vlan_idx)
 			*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2;
-		} else {
+		else
 			*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
-		}
 		break;
 	case FLOW_ACTION_VLAN_PUSH:
 		attr->vlan_vid[vlan_idx] = act->vlan.vid;
@@ -65,25 +63,10 @@ parse_tc_vlan_action(struct mlx5e_priv *priv,
 		if (!attr->vlan_proto[vlan_idx])
 			attr->vlan_proto[vlan_idx] = htons(ETH_P_8021Q);
 
-		if (vlan_idx) {
-			if (!mlx5_eswitch_vlan_actions_supported(priv->mdev,
-								 MLX5_FS_VLAN_DEPTH)) {
-				NL_SET_ERR_MSG_MOD(extack,
-						   "vlan push action is not supported for vlan depth > 1");
-				return -EOPNOTSUPP;
-			}
-
+		if (vlan_idx)
 			*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2;
-		} else {
-			if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, 1) &&
-			    (act->vlan.proto != htons(ETH_P_8021Q) ||
-			     act->vlan.prio)) {
-				NL_SET_ERR_MSG_MOD(extack, "vlan push action is not supported");
-				return -EOPNOTSUPP;
-			}
-
+		else
 			*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
-		}
 		break;
 	case FLOW_ACTION_VLAN_POP_ETH:
 		parse_state->eth_pop = true;

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c

@@ -92,7 +92,6 @@ static void mlx5e_ipsec_packet_setup(void *obj, u32 pdn,
 		MLX5_SET(ipsec_aso, aso_ctx, remove_flow_pkt_cnt,
 			 lower_32_bits(attrs->hard_packet_limit));
 		MLX5_SET(ipsec_aso, aso_ctx, hard_lft_arm, 1);
-		MLX5_SET(ipsec_aso, aso_ctx, remove_flow_enable, 1);
 	}
 
 	if (attrs->soft_packet_limit != XFRM_INF) {
@@ -329,8 +328,7 @@ static void mlx5e_ipsec_handle_event(struct work_struct *_work)
 
 	if (attrs->soft_packet_limit != XFRM_INF)
 		if (!MLX5_GET(ipsec_aso, aso->ctx, soft_lft_arm) ||
-		    !MLX5_GET(ipsec_aso, aso->ctx, hard_lft_arm) ||
-		    !MLX5_GET(ipsec_aso, aso->ctx, remove_flow_enable))
+		    !MLX5_GET(ipsec_aso, aso->ctx, hard_lft_arm))
 			xfrm_state_check_expire(sa_entry->x);
 
 unlock:

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c

@@ -899,8 +899,6 @@ static void mlx5e_tls_tx_debugfs_init(struct mlx5e_tls *tls,
 		return;
 
 	tls->debugfs.dfs_tx = debugfs_create_dir("tx", dfs_root);
-	if (!tls->debugfs.dfs_tx)
-		return;
 
 	debugfs_create_size_t("pool_size", 0400, tls->debugfs.dfs_tx,
 			      &tls->tx_pool->size);

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

@@ -3002,32 +3002,37 @@ int mlx5e_safe_switch_params(struct mlx5e_priv *priv,
 			     mlx5e_fp_preactivate preactivate,
 			     void *context, bool reset)
 {
-	struct mlx5e_channels new_chs = {};
+	struct mlx5e_channels *new_chs;
 	int err;
 
 	reset &= test_bit(MLX5E_STATE_OPENED, &priv->state);
 	if (!reset)
 		return mlx5e_switch_priv_params(priv, params, preactivate, context);
 
-	new_chs.params = *params;
+	new_chs = kzalloc(sizeof(*new_chs), GFP_KERNEL);
+	if (!new_chs)
+		return -ENOMEM;
+	new_chs->params = *params;
 
-	mlx5e_selq_prepare_params(&priv->selq, &new_chs.params);
+	mlx5e_selq_prepare_params(&priv->selq, &new_chs->params);
 
-	err = mlx5e_open_channels(priv, &new_chs);
+	err = mlx5e_open_channels(priv, new_chs);
 	if (err)
 		goto err_cancel_selq;
 
-	err = mlx5e_switch_priv_channels(priv, &new_chs, preactivate, context);
+	err = mlx5e_switch_priv_channels(priv, new_chs, preactivate, context);
 	if (err)
 		goto err_close;
 
+	kfree(new_chs);
 	return 0;
 
 err_close:
-	mlx5e_close_channels(&new_chs);
+	mlx5e_close_channels(new_chs);
 
 err_cancel_selq:
 	mlx5e_selq_cancel(&priv->selq);
+	kfree(new_chs);
 	return err;
 }
 

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

@@ -1124,8 +1124,6 @@ static void mlx5e_tc_debugfs_init(struct mlx5e_tc_table *tc,
 		return;
 
 	tc->dfs_root = debugfs_create_dir("tc", dfs_root);
-	if (!tc->dfs_root)
-		return;
 
 	debugfs_create_file("hairpin_num_queues", 0644, tc->dfs_root,
 			    &tc->hairpin_params, &fops_hairpin_queues);
@@ -1884,7 +1882,6 @@ post_process_attr(struct mlx5e_tc_flow *flow,
 		  struct mlx5_flow_attr *attr,
 		  struct netlink_ext_ack *extack)
 {
-	struct mlx5_eswitch *esw = flow->priv->mdev->priv.eswitch;
 	bool vf_tun;
 	int err = 0;
 
@@ -1896,12 +1893,6 @@ post_process_attr(struct mlx5e_tc_flow *flow,
 	if (err)
 		goto err_out;
 
-	if (mlx5e_is_eswitch_flow(flow)) {
-		err = mlx5_eswitch_add_vlan_action(esw, attr);
-		if (err)
-			goto err_out;
-	}
-
 	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) {
 		err = mlx5e_tc_attach_mod_hdr(flow->priv, flow, attr);
 		if (err)
@@ -2105,8 +2096,6 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv,
 	if (mlx5_flow_has_geneve_opt(flow))
 		mlx5_geneve_tlv_option_del(priv->mdev->geneve);
 
-	mlx5_eswitch_del_vlan_action(esw, attr);
-
 	if (flow->decap_route)
 		mlx5e_detach_decap_route(priv, flow);
 

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

@@ -222,7 +222,6 @@ struct mlx5_eswitch_fdb {
 			struct mlx5_flow_handle **send_to_vport_meta_rules;
 			struct mlx5_flow_handle *miss_rule_uni;
 			struct mlx5_flow_handle *miss_rule_multi;
-			int vlan_push_pop_refcount;
 
 			struct mlx5_fs_chains *esw_chains_priv;
 			struct {
@@ -520,10 +519,6 @@ int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
 					struct netlink_ext_ack *extack);
 void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
 
-int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
-				 struct mlx5_flow_attr *attr);
-int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
-				 struct mlx5_flow_attr *attr);
 int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
 				  u16 vport, u16 vlan, u8 qos, u8 set_flags);
 

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

@@ -579,16 +579,16 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
 	if (esw->mode != MLX5_ESWITCH_OFFLOADS)
 		return ERR_PTR(-EOPNOTSUPP);
 
+	if (!mlx5_eswitch_vlan_actions_supported(esw->dev, 1))
+		return ERR_PTR(-EOPNOTSUPP);
+
 	dest = kcalloc(MLX5_MAX_FLOW_FWD_VPORTS + 1, sizeof(*dest), GFP_KERNEL);
 	if (!dest)
 		return ERR_PTR(-ENOMEM);
 
 	flow_act.action = attr->action;
-	/* if per flow vlan pop/push is emulated, don't set that into the firmware */
-	if (!mlx5_eswitch_vlan_actions_supported(esw->dev, 1))
-		flow_act.action &= ~(MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH |
-				     MLX5_FLOW_CONTEXT_ACTION_VLAN_POP);
-	else if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) {
+
+	if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) {
 		flow_act.vlan[0].ethtype = ntohs(esw_attr->vlan_proto[0]);
 		flow_act.vlan[0].vid = esw_attr->vlan_vid[0];
 		flow_act.vlan[0].prio = esw_attr->vlan_prio[0];
@@ -829,204 +829,6 @@ mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw,
 	__mlx5_eswitch_del_rule(esw, rule, attr, true);
 }
 
-static int esw_set_global_vlan_pop(struct mlx5_eswitch *esw, u8 val)
-{
-	struct mlx5_eswitch_rep *rep;
-	unsigned long i;
-	int err = 0;
-
-	esw_debug(esw->dev, "%s applying global %s policy\n", __func__, val ? "pop" : "none");
-	mlx5_esw_for_each_host_func_vport(esw, i, rep, esw->esw_funcs.num_vfs) {
-		if (atomic_read(&rep->rep_data[REP_ETH].state) != REP_LOADED)
-			continue;
-
-		err = __mlx5_eswitch_set_vport_vlan(esw, rep->vport, 0, 0, val);
-		if (err)
-			goto out;
-	}
-
-out:
-	return err;
-}
-
-static struct mlx5_eswitch_rep *
-esw_vlan_action_get_vport(struct mlx5_esw_flow_attr *attr, bool push, bool pop)
-{
-	struct mlx5_eswitch_rep *in_rep, *out_rep, *vport = NULL;
-
-	in_rep  = attr->in_rep;
-	out_rep = attr->dests[0].rep;
-
-	if (push)
-		vport = in_rep;
-	else if (pop)
-		vport = out_rep;
-	else
-		vport = in_rep;
-
-	return vport;
-}
-
-static int esw_add_vlan_action_check(struct mlx5_esw_flow_attr *attr,
-				     bool push, bool pop, bool fwd)
-{
-	struct mlx5_eswitch_rep *in_rep, *out_rep;
-
-	if ((push || pop) && !fwd)
-		goto out_notsupp;
-
-	in_rep  = attr->in_rep;
-	out_rep = attr->dests[0].rep;
-
-	if (push && in_rep->vport == MLX5_VPORT_UPLINK)
-		goto out_notsupp;
-
-	if (pop && out_rep->vport == MLX5_VPORT_UPLINK)
-		goto out_notsupp;
-
-	/* vport has vlan push configured, can't offload VF --> wire rules w.o it */
-	if (!push && !pop && fwd)
-		if (in_rep->vlan && out_rep->vport == MLX5_VPORT_UPLINK)
-			goto out_notsupp;
-
-	/* protects against (1) setting rules with different vlans to push and
-	 * (2) setting rules w.o vlans (attr->vlan = 0) && w. vlans to push (!= 0)
-	 */
-	if (push && in_rep->vlan_refcount && (in_rep->vlan != attr->vlan_vid[0]))
-		goto out_notsupp;
-
-	return 0;
-
-out_notsupp:
-	return -EOPNOTSUPP;
-}
-
-int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
-				 struct mlx5_flow_attr *attr)
-{
-	struct offloads_fdb *offloads = &esw->fdb_table.offloads;
-	struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
-	struct mlx5_eswitch_rep *vport = NULL;
-	bool push, pop, fwd;
-	int err = 0;
-
-	/* nop if we're on the vlan push/pop non emulation mode */
-	if (mlx5_eswitch_vlan_actions_supported(esw->dev, 1))
-		return 0;
-
-	push = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH);
-	pop  = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP);
-	fwd  = !!((attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) &&
-		   !attr->dest_chain);
-
-	mutex_lock(&esw->state_lock);
-
-	err = esw_add_vlan_action_check(esw_attr, push, pop, fwd);
-	if (err)
-		goto unlock;
-
-	attr->flags &= ~MLX5_ATTR_FLAG_VLAN_HANDLED;
-
-	vport = esw_vlan_action_get_vport(esw_attr, push, pop);
-
-	if (!push && !pop && fwd) {
-		/* tracks VF --> wire rules without vlan push action */
-		if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK) {
-			vport->vlan_refcount++;
-			attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED;
-		}
-
-		goto unlock;
-	}
-
-	if (!push && !pop)
-		goto unlock;
-
-	if (!(offloads->vlan_push_pop_refcount)) {
-		/* it's the 1st vlan rule, apply global vlan pop policy */
-		err = esw_set_global_vlan_pop(esw, SET_VLAN_STRIP);
-		if (err)
-			goto out;
-	}
-	offloads->vlan_push_pop_refcount++;
-
-	if (push) {
-		if (vport->vlan_refcount)
-			goto skip_set_push;
-
-		err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, esw_attr->vlan_vid[0],
-						    0, SET_VLAN_INSERT | SET_VLAN_STRIP);
-		if (err)
-			goto out;
-		vport->vlan = esw_attr->vlan_vid[0];
-skip_set_push:
-		vport->vlan_refcount++;
-	}
-out:
-	if (!err)
-		attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED;
-unlock:
-	mutex_unlock(&esw->state_lock);
-	return err;
-}
-
-int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
-				 struct mlx5_flow_attr *attr)
-{
-	struct offloads_fdb *offloads = &esw->fdb_table.offloads;
-	struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
-	struct mlx5_eswitch_rep *vport = NULL;
-	bool push, pop, fwd;
-	int err = 0;
-
-	/* nop if we're on the vlan push/pop non emulation mode */
-	if (mlx5_eswitch_vlan_actions_supported(esw->dev, 1))
-		return 0;
-
-	if (!(attr->flags & MLX5_ATTR_FLAG_VLAN_HANDLED))
-		return 0;
-
-	push = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH);
-	pop  = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP);
-	fwd  = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST);
-
-	mutex_lock(&esw->state_lock);
-
-	vport = esw_vlan_action_get_vport(esw_attr, push, pop);
-
-	if (!push && !pop && fwd) {
-		/* tracks VF --> wire rules without vlan push action */
-		if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK)
-			vport->vlan_refcount--;
-
-		goto out;
-	}
-
-	if (push) {
-		vport->vlan_refcount--;
-		if (vport->vlan_refcount)
-			goto skip_unset_push;
-
-		vport->vlan = 0;
-		err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport,
-						    0, 0, SET_VLAN_STRIP);
-		if (err)
-			goto out;
-	}
-
-skip_unset_push:
-	offloads->vlan_push_pop_refcount--;
-	if (offloads->vlan_push_pop_refcount)
-		goto out;
-
-	/* no more vlan rules, stop global vlan pop policy */
-	err = esw_set_global_vlan_pop(esw, 0);
-
-out:
-	mutex_unlock(&esw->state_lock);
-	return err;
-}
-
 struct mlx5_flow_handle *
 mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
 				    struct mlx5_eswitch *from_esw,

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

@@ -272,8 +272,6 @@ static int mlx5_cmd_create_flow_table(struct mlx5_flow_root_namespace *ns,
 	unsigned int size;
 	int err;
 
-	if (ft_attr->max_fte != POOL_NEXT_SIZE)
-		size = roundup_pow_of_two(ft_attr->max_fte);
 	size = mlx5_ft_pool_get_avail_sz(dev, ft->type, ft_attr->max_fte);
 	if (!size)
 		return -ENOSPC;
@@ -412,11 +410,6 @@ static int mlx5_cmd_create_flow_group(struct mlx5_flow_root_namespace *ns,
 		 MLX5_CMD_OP_CREATE_FLOW_GROUP);
 	MLX5_SET(create_flow_group_in, in, table_type, ft->type);
 	MLX5_SET(create_flow_group_in, in, table_id, ft->id);
-	if (ft->vport) {
-		MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
-		MLX5_SET(create_flow_group_in, in, other_vport, 1);
-	}
-
 	MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
 	MLX5_SET(create_flow_group_in, in, other_vport,
 		 !!(ft->flags & MLX5_FLOW_TABLE_OTHER_VPORT));

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

@@ -1776,7 +1776,6 @@ static int build_match_list(struct match_list *match_head,
 {
 	struct rhlist_head *tmp, *list;
 	struct mlx5_flow_group *g;
-	int err = 0;
 
 	rcu_read_lock();
 	INIT_LIST_HEAD(&match_head->list);
@@ -1802,7 +1801,7 @@ static int build_match_list(struct match_list *match_head,
 		list_add_tail(&curr_match->list, &match_head->list);
 	}
 	rcu_read_unlock();
-	return err;
+	return 0;
 }
 
 static u64 matched_fgs_get_version(struct list_head *match_head)

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

@@ -371,6 +371,7 @@ static int mlx5_pci_link_toggle(struct mlx5_core_dev *dev)
 		mlx5_core_err(dev, "PCI link not ready (0x%04x) after %llu ms\n",
 			      reg16, mlx5_tout_ms(dev, PCI_TOGGLE));
 		err = -ETIMEDOUT;
+		goto restore;
 	}
 
 	do {

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

@@ -62,7 +62,7 @@ enum {
 };
 
 enum {
-	MLX5_DROP_NEW_HEALTH_WORK,
+	MLX5_DROP_HEALTH_WORK,
 };
 
 enum  {
@@ -675,7 +675,7 @@ static void mlx5_fw_fatal_reporter_err_work(struct work_struct *work)
 	devlink = priv_to_devlink(dev);
 
 	mutex_lock(&dev->intf_state_mutex);
-	if (test_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags)) {
+	if (test_bit(MLX5_DROP_HEALTH_WORK, &health->flags)) {
 		mlx5_core_err(dev, "health works are not permitted at this stage\n");
 		mutex_unlock(&dev->intf_state_mutex);
 		return;
@@ -771,14 +771,8 @@ static unsigned long get_next_poll_jiffies(struct mlx5_core_dev *dev)
 void mlx5_trigger_health_work(struct mlx5_core_dev *dev)
 {
 	struct mlx5_core_health *health = &dev->priv.health;
-	unsigned long flags;
 
-	spin_lock_irqsave(&health->wq_lock, flags);
-	if (!test_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags))
-		queue_work(health->wq, &health->fatal_report_work);
-	else
-		mlx5_core_err(dev, "new health works are not permitted at this stage\n");
-	spin_unlock_irqrestore(&health->wq_lock, flags);
+	queue_work(health->wq, &health->fatal_report_work);
 }
 
 #define MLX5_MSEC_PER_HOUR (MSEC_PER_SEC * 60 * 60)
@@ -858,7 +852,7 @@ void mlx5_start_health_poll(struct mlx5_core_dev *dev)
 
 	timer_setup(&health->timer, poll_health, 0);
 	health->fatal_error = MLX5_SENSOR_NO_ERR;
-	clear_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags);
+	clear_bit(MLX5_DROP_HEALTH_WORK, &health->flags);
 	health->health = &dev->iseg->health;
 	health->health_counter = &dev->iseg->health_counter;
 
@@ -869,13 +863,9 @@ void mlx5_start_health_poll(struct mlx5_core_dev *dev)
 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health)
 {
 	struct mlx5_core_health *health = &dev->priv.health;
-	unsigned long flags;
 
-	if (disable_health) {
-		spin_lock_irqsave(&health->wq_lock, flags);
-		set_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags);
-		spin_unlock_irqrestore(&health->wq_lock, flags);
-	}
+	if (disable_health)
+		set_bit(MLX5_DROP_HEALTH_WORK, &health->flags);
 
 	del_timer_sync(&health->timer);
 }
@@ -891,11 +881,8 @@ void mlx5_start_health_fw_log_up(struct mlx5_core_dev *dev)
 void mlx5_drain_health_wq(struct mlx5_core_dev *dev)
 {
 	struct mlx5_core_health *health = &dev->priv.health;
-	unsigned long flags;
 
-	spin_lock_irqsave(&health->wq_lock, flags);
-	set_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags);
-	spin_unlock_irqrestore(&health->wq_lock, flags);
+	set_bit(MLX5_DROP_HEALTH_WORK, &health->flags);
 	cancel_delayed_work_sync(&health->update_fw_log_ts_work);
 	cancel_work_sync(&health->report_work);
 	cancel_work_sync(&health->fatal_report_work);
@@ -928,7 +915,6 @@ int mlx5_health_init(struct mlx5_core_dev *dev)
 	kfree(name);
 	if (!health->wq)
 		goto out_err;
-	spin_lock_init(&health->wq_lock);
 	INIT_WORK(&health->fatal_report_work, mlx5_fw_fatal_reporter_err_work);
 	INIT_WORK(&health->report_work, mlx5_fw_reporter_err_work);
 	INIT_DELAYED_WORK(&health->update_fw_log_ts_work, mlx5_health_log_ts_update);

include/linux/mlx5/device.h

@@ -367,6 +367,7 @@ enum mlx5_driver_event {
 enum {
 	MLX5_TRACER_SUBTYPE_OWNERSHIP_CHANGE = 0x0,
 	MLX5_TRACER_SUBTYPE_TRACES_AVAILABLE = 0x1,
+	MLX5_TRACER_SUBTYPE_STRINGS_DB_UPDATE = 0x2,
 };
 
 enum {

include/linux/mlx5/driver.h

@@ -430,8 +430,6 @@ struct mlx5_core_health {
 	u8				synd;
 	u32				fatal_error;
 	u32				crdump_size;
-	/* wq spinlock to synchronize draining */
-	spinlock_t			wq_lock;
 	struct workqueue_struct	       *wq;
 	unsigned long			flags;
 	struct work_struct		fatal_report_work;