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

Saeed Mahameed says:

====================
mlx5 fixes 2023-02-07

This series provides bug fixes to mlx5 driver.

* tag 'mlx5-fixes-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Serialize module cleanup with reload and remove
net/mlx5: fw_tracer, Zero consumer index when reloading the tracer
net/mlx5: fw_tracer, Clear load bit when freeing string DBs buffers
net/mlx5: Expose SF firmware pages counter
net/mlx5: Store page counters in a single array
net/mlx5e: IPoIB, Show unknown speed instead of error
net/mlx5e: Fix crash unsetting rx-vlan-filter in switchdev mode
net/mlx5: Bridge, fix ageing of peer FDB entries
net/mlx5: DR, Fix potential race in dr_rule_create_rule_nic
net/mlx5e: Update rx ring hw mtu upon each rx-fcs flag change
====================

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

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

···
 	pages = dev->priv.dbg.pages_debugfs;
 
 	debugfs_create_u32("fw_pages_total", 0400, pages, &dev->priv.fw_pages);
-	debugfs_create_u32("fw_pages_vfs", 0400, pages, &dev->priv.vfs_pages);
-	debugfs_create_u32("fw_pages_host_pf", 0400, pages, &dev->priv.host_pf_pages);
+	debugfs_create_u32("fw_pages_vfs", 0400, pages, &dev->priv.page_counters[MLX5_VF]);
+	debugfs_create_u32("fw_pages_sfs", 0400, pages, &dev->priv.page_counters[MLX5_SF]);
+	debugfs_create_u32("fw_pages_host_pf", 0400, pages, &dev->priv.page_counters[MLX5_HOST_PF]);
 	debugfs_create_u32("fw_pages_alloc_failed", 0400, pages, &dev->priv.fw_pages_alloc_failed);
 	debugfs_create_u32("fw_pages_give_dropped", 0400, pages, &dev->priv.give_pages_dropped);
 	debugfs_create_u32("fw_pages_reclaim_discard", 0400, pages,

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

···
 			MLX5_GET(mtrc_cap, out, num_string_trace);
 	tracer->str_db.num_string_db = MLX5_GET(mtrc_cap, out, num_string_db);
 	tracer->owner = !!MLX5_GET(mtrc_cap, out, trace_owner);
+	tracer->str_db.loaded = false;
 
 	for (i = 0; i < tracer->str_db.num_string_db; i++) {
 		mtrc_cap_sp = MLX5_ADDR_OF(mtrc_cap, out, string_db_param[i]);
···
 	if (err)
 		mlx5_core_warn(dev, "FWTracer: Failed to set tracer configurations %d\n", err);
 
+	tracer->buff.consumer_index = 0;
 	return err;
 }
 
···
 	mlx5_core_dbg(tracer->dev, "FWTracer: ownership changed, current=(%d)\n", tracer->owner);
 	if (tracer->owner) {
 		tracer->owner = false;
-		tracer->buff.consumer_index = 0;
 		return;
 	}
 

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

···
 
 	mlx5_host_pf_cleanup(dev);
 
-	err = mlx5_wait_for_pages(dev, &dev->priv.host_pf_pages);
+	err = mlx5_wait_for_pages(dev, &dev->priv.page_counters[MLX5_HOST_PF]);
 	if (err)
 		mlx5_core_warn(dev, "Timeout reclaiming external host PF pages err(%d)\n", err);
 }

drivers/net/ethernet/mellanox/mlx5/core/en/rep/bridge.c

···
 
 	switch (event) {
 	case SWITCHDEV_FDB_ADD_TO_BRIDGE:
-		/* only handle the event on native eswtich of representor */
-		if (!mlx5_esw_bridge_is_local(dev, rep, esw))
-			break;
-
 		fdb_info = container_of(info,
 					struct switchdev_notifier_fdb_info,
 					info);

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

···
 
 void mlx5e_disable_cvlan_filter(struct mlx5e_flow_steering *fs, bool promisc)
 {
-	if (fs->vlan->cvlan_filter_disabled)
+	if (!fs->vlan || fs->vlan->cvlan_filter_disabled)
 		return;
 
 	fs->vlan->cvlan_filter_disabled = true;

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

···
 	rq->ix           = c->ix;
 	rq->channel      = c;
 	rq->mdev         = mdev;
-	rq->hw_mtu       = MLX5E_SW2HW_MTU(params, params->sw_mtu);
+	rq->hw_mtu =
+		MLX5E_SW2HW_MTU(params, params->sw_mtu) - ETH_FCS_LEN * !params->scatter_fcs_en;
 	rq->xdpsq        = &c->rq_xdpsq;
 	rq->stats        = &c->priv->channel_stats[c->ix]->rq;
 	rq->ptp_cyc2time = mlx5_rq_ts_translator(mdev);
···
 	mlx5e_free_rx_descs(rq);
 
 	return mlx5e_rq_to_ready(rq, curr_state);
-}
-
-static int mlx5e_modify_rq_scatter_fcs(struct mlx5e_rq *rq, bool enable)
-{
-	struct mlx5_core_dev *mdev = rq->mdev;
-
-	void *in;
-	void *rqc;
-	int inlen;
-	int err;
-
-	inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
-	in = kvzalloc(inlen, GFP_KERNEL);
-	if (!in)
-		return -ENOMEM;
-
-	rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
-
-	MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
-	MLX5_SET64(modify_rq_in, in, modify_bitmask,
-		   MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_SCATTER_FCS);
-	MLX5_SET(rqc, rqc, scatter_fcs, enable);
-	MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
-
-	err = mlx5_core_modify_rq(mdev, rq->rqn, in);
-
-	kvfree(in);
-
-	return err;
 }
 
 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
···
 	mlx5e_destroy_tises(priv);
 }
 
-static int mlx5e_modify_channels_scatter_fcs(struct mlx5e_channels *chs, bool enable)
-{
-	int err = 0;
-	int i;
-
-	for (i = 0; i < chs->num; i++) {
-		err = mlx5e_modify_rq_scatter_fcs(&chs->c[i]->rq, enable);
-		if (err)
-			return err;
-	}
-
-	return 0;
-}
-
 static int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd)
 {
 	int err;
···
 	return mlx5_set_ports_check(mdev, in, sizeof(in));
 }
 
+static int mlx5e_set_rx_port_ts_wrap(struct mlx5e_priv *priv, void *ctx)
+{
+	struct mlx5_core_dev *mdev = priv->mdev;
+	bool enable = *(bool *)ctx;
+
+	return mlx5e_set_rx_port_ts(mdev, enable);
+}
+
 static int set_feature_rx_fcs(struct net_device *netdev, bool enable)
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	struct mlx5e_channels *chs = &priv->channels;
-	struct mlx5_core_dev *mdev = priv->mdev;
+	struct mlx5e_params new_params;
 	int err;
 
 	mutex_lock(&priv->state_lock);
 
-	if (enable) {
-		err = mlx5e_set_rx_port_ts(mdev, false);
-		if (err)
-			goto out;
-
-		chs->params.scatter_fcs_en = true;
-		err = mlx5e_modify_channels_scatter_fcs(chs, true);
-		if (err) {
-			chs->params.scatter_fcs_en = false;
-			mlx5e_set_rx_port_ts(mdev, true);
-		}
-	} else {
-		chs->params.scatter_fcs_en = false;
-		err = mlx5e_modify_channels_scatter_fcs(chs, false);
-		if (err) {
-			chs->params.scatter_fcs_en = true;
-			goto out;
-		}
-		err = mlx5e_set_rx_port_ts(mdev, true);
-		if (err) {
-			mlx5_core_warn(mdev, "Failed to set RX port timestamp %d\n", err);
-			err = 0;
-		}
-	}
-
-out:
+	new_params = chs->params;
+	new_params.scatter_fcs_en = enable;
+	err = mlx5e_safe_switch_params(priv, &new_params, mlx5e_set_rx_port_ts_wrap,
+				       &new_params.scatter_fcs_en, true);
 	mutex_unlock(&priv->state_lock);
 	return err;
 }
···
 	features &= ~NETIF_F_GRO_HW;
 	if (netdev->features & NETIF_F_GRO_HW)
 		netdev_warn(netdev, "Disabling HW_GRO, not supported in switchdev mode\n");
+
+	features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
+	if (netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
+		netdev_warn(netdev, "Disabling HW_VLAN CTAG FILTERING, not supported in switchdev mode\n");
 
 	return features;
 }

drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c

···
 	struct mlx5_esw_bridge *bridge;
 
 	port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads);
-	if (!port || port->flags & MLX5_ESW_BRIDGE_PORT_FLAG_PEER)
+	if (!port)
 		return;
 
 	bridge = port->bridge;

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

···
 	}
 }
 
-static int mlx5i_get_speed_settings(u16 ib_link_width_oper, u16 ib_proto_oper)
+static u32 mlx5i_get_speed_settings(u16 ib_link_width_oper, u16 ib_proto_oper)
 {
 	int rate, width;
 
 	rate = mlx5_ptys_rate_enum_to_int(ib_proto_oper);
 	if (rate < 0)
-		return -EINVAL;
+		return SPEED_UNKNOWN;
 	width = mlx5_ptys_width_enum_to_int(ib_link_width_oper);
 	if (width < 0)
-		return -EINVAL;
+		return SPEED_UNKNOWN;
 
 	return rate * width;
 }
···
 	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 
 	speed = mlx5i_get_speed_settings(ib_link_width_oper, ib_proto_oper);
-	if (speed < 0)
-		return -EINVAL;
+	link_ksettings->base.speed = speed;
+	link_ksettings->base.duplex = speed == SPEED_UNKNOWN ? DUPLEX_UNKNOWN : DUPLEX_FULL;
 
-	link_ksettings->base.duplex = DUPLEX_FULL;
 	link_ksettings->base.port = PORT_OTHER;
 
 	link_ksettings->base.autoneg = AUTONEG_DISABLE;
-
-	link_ksettings->base.speed = speed;
 
 	return 0;
 }

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

···
 	mlx5_core_verify_params();
 	mlx5_register_debugfs();
 
-	err = pci_register_driver(&mlx5_core_driver);
+	err = mlx5e_init();
 	if (err)
 		goto err_debug;
 
···
 	if (err)
 		goto err_sf;
 
-	err = mlx5e_init();
+	err = pci_register_driver(&mlx5_core_driver);
 	if (err)
-		goto err_en;
+		goto err_pci;
 
 	return 0;
 
-err_en:
+err_pci:
 	mlx5_sf_driver_unregister();
 err_sf:
-	pci_unregister_driver(&mlx5_core_driver);
+	mlx5e_cleanup();
 err_debug:
 	mlx5_unregister_debugfs();
 	return err;
···
 
 static void __exit mlx5_cleanup(void)
 {
-	mlx5e_cleanup();
-	mlx5_sf_driver_unregister();
 	pci_unregister_driver(&mlx5_core_driver);
+	mlx5_sf_driver_unregister();
+	mlx5e_cleanup();
 	mlx5_unregister_debugfs();
 }
 

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

···
 	return (u32)func_id | (ec_function << 16);
 }
 
+static u16 func_id_to_type(struct mlx5_core_dev *dev, u16 func_id, bool ec_function)
+{
+	if (!func_id)
+		return mlx5_core_is_ecpf(dev) && !ec_function ? MLX5_HOST_PF : MLX5_PF;
+
+	return func_id <= mlx5_core_max_vfs(dev) ?  MLX5_VF : MLX5_SF;
+}
+
 static struct rb_root *page_root_per_function(struct mlx5_core_dev *dev, u32 function)
 {
 	struct rb_root *root;
···
 	u32 out[MLX5_ST_SZ_DW(manage_pages_out)] = {0};
 	int inlen = MLX5_ST_SZ_BYTES(manage_pages_in);
 	int notify_fail = event;
+	u16 func_type;
 	u64 addr;
 	int err;
 	u32 *in;
···
 		goto out_dropped;
 	}
 
+	func_type = func_id_to_type(dev, func_id, ec_function);
+	dev->priv.page_counters[func_type] += npages;
 	dev->priv.fw_pages += npages;
-	if (func_id)
-		dev->priv.vfs_pages += npages;
-	else if (mlx5_core_is_ecpf(dev) && !ec_function)
-		dev->priv.host_pf_pages += npages;
 
 	mlx5_core_dbg(dev, "npages %d, ec_function %d, func_id 0x%x, err %d\n",
 		      npages, ec_function, func_id, err);
···
 	struct rb_root *root;
 	struct rb_node *p;
 	int npages = 0;
+	u16 func_type;
 
 	root = xa_load(&dev->priv.page_root_xa, function);
 	if (WARN_ON_ONCE(!root))
···
 		free_fwp(dev, fwp, fwp->free_count);
 	}
 
+	func_type = func_id_to_type(dev, func_id, ec_function);
+	dev->priv.page_counters[func_type] -= npages;
 	dev->priv.fw_pages -= npages;
-	if (func_id)
-		dev->priv.vfs_pages -= npages;
-	else if (mlx5_core_is_ecpf(dev) && !ec_function)
-		dev->priv.host_pf_pages -= npages;
 
 	mlx5_core_dbg(dev, "npages %d, ec_function %d, func_id 0x%x\n",
 		      npages, ec_function, func_id);
···
 	int outlen = MLX5_ST_SZ_BYTES(manage_pages_out);
 	u32 in[MLX5_ST_SZ_DW(manage_pages_in)] = {};
 	int num_claimed;
+	u16 func_type;
 	u32 *out;
 	int err;
 	int i;
···
 	if (nclaimed)
 		*nclaimed = num_claimed;
 
+	func_type = func_id_to_type(dev, func_id, ec_function);
+	dev->priv.page_counters[func_type] -= num_claimed;
 	dev->priv.fw_pages -= num_claimed;
-	if (func_id)
-		dev->priv.vfs_pages -= num_claimed;
-	else if (mlx5_core_is_ecpf(dev) && !ec_function)
-		dev->priv.host_pf_pages -= num_claimed;
 
 out_free:
 	kvfree(out);
···
 	WARN(dev->priv.fw_pages,
 	     "FW pages counter is %d after reclaiming all pages\n",
 	     dev->priv.fw_pages);
-	WARN(dev->priv.vfs_pages,
+	WARN(dev->priv.page_counters[MLX5_VF],
 	     "VFs FW pages counter is %d after reclaiming all pages\n",
-	     dev->priv.vfs_pages);
-	WARN(dev->priv.host_pf_pages,
+	     dev->priv.page_counters[MLX5_VF]);
+	WARN(dev->priv.page_counters[MLX5_HOST_PF],
 	     "External host PF FW pages counter is %d after reclaiming all pages\n",
-	     dev->priv.host_pf_pages);
+	     dev->priv.page_counters[MLX5_HOST_PF]);
 
 	return 0;
 }

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

···
 
 	mlx5_eswitch_disable_sriov(dev->priv.eswitch, clear_vf);
 
-	if (mlx5_wait_for_pages(dev, &dev->priv.vfs_pages))
+	if (mlx5_wait_for_pages(dev, &dev->priv.page_counters[MLX5_VF]))
 		mlx5_core_warn(dev, "timeout reclaiming VFs pages\n");
 }
 

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c

···
 			 rule->flow_source))
 		return 0;
 
+	mlx5dr_domain_nic_lock(nic_dmn);
+
 	ret = mlx5dr_matcher_select_builders(matcher,
 					     nic_matcher,
 					     dr_rule_get_ipv(&param->outer),
 					     dr_rule_get_ipv(&param->inner));
 	if (ret)
-		return ret;
+		goto err_unlock;
 
 	hw_ste_arr_is_opt = nic_matcher->num_of_builders <= DR_RULE_MAX_STES_OPTIMIZED;
 	if (likely(hw_ste_arr_is_opt)) {
···
 		hw_ste_arr = kzalloc((nic_matcher->num_of_builders + DR_ACTION_MAX_STES) *
 				     DR_STE_SIZE, GFP_KERNEL);
 
-		if (!hw_ste_arr)
-			return -ENOMEM;
+		if (!hw_ste_arr) {
+			ret = -ENOMEM;
+			goto err_unlock;
+		}
 	}
-
-	mlx5dr_domain_nic_lock(nic_dmn);
 
 	ret = mlx5dr_matcher_add_to_tbl_nic(dmn, nic_matcher);
 	if (ret)
···
 
 	mlx5dr_domain_nic_unlock(nic_dmn);
 
-	goto out;
+	if (unlikely(!hw_ste_arr_is_opt))
+		kfree(hw_ste_arr);
+
+	return 0;
 
 free_rule:
 	dr_rule_clean_rule_members(rule, nic_rule);
···
 		mlx5dr_matcher_remove_from_tbl_nic(dmn, nic_matcher);
 
 free_hw_ste:
-	mlx5dr_domain_nic_unlock(nic_dmn);
-
-out:
-	if (unlikely(!hw_ste_arr_is_opt))
+	if (!hw_ste_arr_is_opt)
 		kfree(hw_ste_arr);
+
+err_unlock:
+	mlx5dr_domain_nic_unlock(nic_dmn);
 
 	return ret;
 }

include/linux/mlx5/driver.h

···
 	struct dentry *lag_debugfs;
 };
 
+enum mlx5_func_type {
+	MLX5_PF,
+	MLX5_VF,
+	MLX5_SF,
+	MLX5_HOST_PF,
+	MLX5_FUNC_TYPE_NUM,
+};
+
 struct mlx5_ft_pool;
 struct mlx5_priv {
 	/* IRQ table valid only for real pci devices PF or VF */
···
 	struct mlx5_nb          pg_nb;
 	struct workqueue_struct *pg_wq;
 	struct xarray           page_root_xa;
-	u32			fw_pages;
 	atomic_t		reg_pages;
 	struct list_head	free_list;
-	u32			vfs_pages;
-	u32			host_pf_pages;
+	u32			fw_pages;
+	u32			page_counters[MLX5_FUNC_TYPE_NUM];
 	u32			fw_pages_alloc_failed;
 	u32			give_pages_dropped;
 	u32			reclaim_pages_discard;