Merge tag 'mlx5-fixes-2020-04-08' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2020-04-08

This series introduces some fixes to mlx5 driver.

Please pull and let me know if there is any problem.

For -stable v5.3
('net/mlx5: Fix frequent ioread PCI access during recovery')
('net/mlx5e: Add missing release firmware call')

For -stable v5.4
('net/mlx5e: Fix nest_level for vlan pop action')
('net/mlx5e: Fix pfnum in devlink port attribute')
====================

Signed-off-by: David S. Miller <[e-mail]>

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

···
 	if (err)
 		return err;
 
-	return mlx5_firmware_flash(dev, fw, extack);
+	err = mlx5_firmware_flash(dev, fw, extack);
+	release_firmware(fw);
+
+	return err;
 }
 
 static u8 mlx5_fw_ver_major(u32 version)

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

···
 	struct nf_flowtable *nf_ft;
 	struct mlx5_tc_ct_priv *ct_priv;
 	struct rhashtable ct_entries_ht;
-	struct list_head ct_entries_list;
 };
 
 struct mlx5_ct_entry {
-	struct list_head list;
 	u16 zone;
 	struct rhash_head node;
 	struct flow_rule *flow_rule;
···
 	if (err)
 		goto err_insert;
 
-	list_add(&entry->list, &ft->ct_entries_list);
-
 	return 0;
 
 err_insert:
···
 	WARN_ON(rhashtable_remove_fast(&ft->ct_entries_ht,
 				       &entry->node,
 				       cts_ht_params));
-	list_del(&entry->list);
 	kfree(entry);
 
 	return 0;
···
 	ft->zone = zone;
 	ft->nf_ft = nf_ft;
 	ft->ct_priv = ct_priv;
-	INIT_LIST_HEAD(&ft->ct_entries_list);
 	refcount_set(&ft->refcount, 1);
 
 	err = rhashtable_init(&ft->ct_entries_ht, &cts_ht_params);
···
 }
 
 static void
-mlx5_tc_ct_flush_ft(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_ft *ft)
+mlx5_tc_ct_flush_ft_entry(void *ptr, void *arg)
 {
-	struct mlx5_ct_entry *entry;
+	struct mlx5_tc_ct_priv *ct_priv = arg;
+	struct mlx5_ct_entry *entry = ptr;
 
-	list_for_each_entry(entry, &ft->ct_entries_list, list)
-		mlx5_tc_ct_entry_del_rules(ft->ct_priv, entry);
+	mlx5_tc_ct_entry_del_rules(ct_priv, entry);
 }
 
 static void
···
 
 	nf_flow_table_offload_del_cb(ft->nf_ft,
 				     mlx5_tc_ct_block_flow_offload, ft);
-	mlx5_tc_ct_flush_ft(ct_priv, ft);
 	rhashtable_remove_fast(&ct_priv->zone_ht, &ft->node, zone_params);
-	rhashtable_destroy(&ft->ct_entries_ht);
+	rhashtable_free_and_destroy(&ft->ct_entries_ht,
+				    mlx5_tc_ct_flush_ft_entry,
+				    ct_priv);
 	kfree(ft);
 }
 

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

···
 #ifdef CONFIG_MLX5_CORE_EN_DCB
 	mlx5e_dcbnl_delete_app(priv);
 #endif
-	mlx5e_devlink_port_unregister(priv);
 	unregister_netdev(priv->netdev);
+	mlx5e_devlink_port_unregister(priv);
 	mlx5e_detach(mdev, vpriv);
 	mlx5e_destroy_netdev(priv);
 }

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

···
 	struct mlx5_eswitch_rep *rep = rpriv->rep;
 	struct netdev_phys_item_id ppid = {};
 	unsigned int dl_port_index = 0;
+	u16 pfnum;
 
 	if (!is_devlink_port_supported(dev, rpriv))
 		return 0;
 
 	mlx5e_rep_get_port_parent_id(rpriv->netdev, &ppid);
+	pfnum = PCI_FUNC(dev->pdev->devfn);
 
 	if (rep->vport == MLX5_VPORT_UPLINK) {
 		devlink_port_attrs_set(&rpriv->dl_port,
 				       DEVLINK_PORT_FLAVOUR_PHYSICAL,
-				       PCI_FUNC(dev->pdev->devfn), false, 0,
+				       pfnum, false, 0,
 				       &ppid.id[0], ppid.id_len);
 		dl_port_index = vport_to_devlink_port_index(dev, rep->vport);
 	} else if (rep->vport == MLX5_VPORT_PF) {
 		devlink_port_attrs_pci_pf_set(&rpriv->dl_port,
 					      &ppid.id[0], ppid.id_len,
-					      dev->pdev->devfn);
+					      pfnum);
 		dl_port_index = rep->vport;
 	} else if (mlx5_eswitch_is_vf_vport(dev->priv.eswitch,
 					    rpriv->rep->vport)) {
 		devlink_port_attrs_pci_vf_set(&rpriv->dl_port,
 					      &ppid.id[0], ppid.id_len,
-					      dev->pdev->devfn,
-					      rep->vport - 1);
+					      pfnum, rep->vport - 1);
 		dl_port_index = vport_to_devlink_port_index(dev, rep->vport);
 	}
 

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

···
 	if (err)
 		return err;
 
-	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) {
+	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR &&
+	    !(attr->ct_attr.ct_action & TCA_CT_ACT_CLEAR)) {
 		err = mlx5e_attach_mod_hdr(priv, flow, parse_attr);
 		dealloc_mod_hdr_actions(&parse_attr->mod_hdr_acts);
 		if (err)
···
 			       struct mlx5_esw_flow_attr *attr,
 			       u32 *action)
 {
-	int nest_level = attr->parse_attr->filter_dev->lower_level;
 	struct flow_action_entry vlan_act = {
 		.id = FLOW_ACTION_VLAN_POP,
 	};
-	int err = 0;
+	int nest_level, err = 0;
 
+	nest_level = attr->parse_attr->filter_dev->lower_level -
+						priv->netdev->lower_level;
 	while (nest_level--) {
 		err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
 		if (err)

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

···
 	MLX5_ESW_ATTR_FLAG_VLAN_HANDLED  = BIT(0),
 	MLX5_ESW_ATTR_FLAG_SLOW_PATH     = BIT(1),
 	MLX5_ESW_ATTR_FLAG_NO_IN_PORT    = BIT(2),
-	MLX5_ESW_ATTR_FLAG_HAIRPIN	 = BIT(3),
 };
 
 struct mlx5_esw_flow_attr {

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

···
 	bool split = !!(attr->split_count);
 	struct mlx5_flow_handle *rule;
 	struct mlx5_flow_table *fdb;
-	bool hairpin = false;
 	int j, i = 0;
 
 	if (esw->mode != MLX5_ESWITCH_OFFLOADS)
···
 		goto err_esw_get;
 	}
 
-	if (mlx5_eswitch_termtbl_required(esw, attr, &flow_act, spec)) {
+	if (mlx5_eswitch_termtbl_required(esw, attr, &flow_act, spec))
 		rule = mlx5_eswitch_add_termtbl_rule(esw, fdb, spec, attr,
 						     &flow_act, dest, i);
-		hairpin = true;
-	} else {
+	else
 		rule = mlx5_add_flow_rules(fdb, spec, &flow_act, dest, i);
-	}
 	if (IS_ERR(rule))
 		goto err_add_rule;
 	else
 		atomic64_inc(&esw->offloads.num_flows);
-
-	if (hairpin)
-		attr->flags |= MLX5_ESW_ATTR_FLAG_HAIRPIN;
 
 	return rule;
 
···
 
 	mlx5_del_flow_rules(rule);
 
-	if (attr->flags & MLX5_ESW_ATTR_FLAG_HAIRPIN) {
+	if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH)) {
 		/* unref the term table */
 		for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) {
 			if (attr->dests[i].termtbl)

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

···
 		if (mlx5_get_nic_state(dev) == MLX5_NIC_IFC_DISABLED)
 			break;
 
-		cond_resched();
+		msleep(20);
 	} while (!time_after(jiffies, end));
 
 	if (mlx5_get_nic_state(dev) != MLX5_NIC_IFC_DISABLED) {