Merge branch 'mlx5-misc-patches-2024-08-08'

Tariq Toukan says:

====================
mlx5 misc patches 2024-08-08

This patchset contains multiple enhancements from the team to the mlx5
core and Eth drivers.

Patch #1 by Chris bumps a defined value to permit more devices doing TC
offloads.

Patch #2 by Jianbo adds an IPsec fast-path optimization to replace the
slow async handling.

Patches #3 and #4 by Jianbo add TC offload support for complicated rules
to overcome firmware limitation.

Patch #5 by Gal unifies the access macro to advertised/supported link
modes.

Patches #6 to #9 by Gal adds extack messages in ethtool ops to replace
prints to the kernel log.

Patch #10 by Cosmin switches to using 'update' verb instead of 'replace'
to better reflect the operation.

Patch #11 by Cosmin exposes an update connection tracking operation to
replace the assumed delete+add implementaiton.
====================

Link: https://patch.msgid.link/20240808055927.2059700-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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

@@ -1172,14 +1172,16 @@ void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
 				 struct ethtool_ringparam *param,
 				 struct kernel_ethtool_ringparam *kernel_param);
 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
-				struct ethtool_ringparam *param);
+				struct ethtool_ringparam *param,
+				struct netlink_ext_ack *extack);
 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
 				struct ethtool_channels *ch);
 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
 			       struct ethtool_channels *ch);
 int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
 			       struct ethtool_coalesce *coal,
-			       struct kernel_ethtool_coalesce *kernel_coal);
+			       struct kernel_ethtool_coalesce *kernel_coal,
+			       struct netlink_ext_ack *extack);
 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
 			       struct ethtool_coalesce *coal,
 			       struct kernel_ethtool_coalesce *kernel_coal,

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

@@ -25,6 +25,8 @@ struct mlx5_ct_fs_ops {
 						struct mlx5_flow_attr *attr,
 						struct flow_rule *flow_rule);
 	void (*ct_rule_del)(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_rule);
+	int (*ct_rule_update)(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_rule,
+			      struct mlx5_flow_spec *spec, struct mlx5_flow_attr *attr);
 
 	size_t priv_size;
 };

drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_dmfs.c

@@ -65,9 +65,30 @@ mlx5_ct_fs_dmfs_ct_rule_del(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_ru
 	kfree(dmfs_rule);
 }
 
+static int mlx5_ct_fs_dmfs_ct_rule_update(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_rule,
+					  struct mlx5_flow_spec *spec, struct mlx5_flow_attr *attr)
+{
+	struct mlx5_ct_fs_dmfs_rule *dmfs_rule = container_of(fs_rule,
+							      struct mlx5_ct_fs_dmfs_rule,
+							      fs_rule);
+	struct mlx5e_priv *priv = netdev_priv(fs->netdev);
+	struct mlx5_flow_handle *rule;
+
+	rule = mlx5_tc_rule_insert(priv, spec, attr);
+	if (IS_ERR(rule))
+		return PTR_ERR(rule);
+	mlx5_tc_rule_delete(priv, dmfs_rule->rule, dmfs_rule->attr);
+
+	dmfs_rule->rule = rule;
+	dmfs_rule->attr = attr;
+
+	return 0;
+}
+
 static struct mlx5_ct_fs_ops dmfs_ops = {
 	.ct_rule_add = mlx5_ct_fs_dmfs_ct_rule_add,
 	.ct_rule_del = mlx5_ct_fs_dmfs_ct_rule_del,
+	.ct_rule_update = mlx5_ct_fs_dmfs_ct_rule_update,
 
 	.init = mlx5_ct_fs_dmfs_init,
 	.destroy = mlx5_ct_fs_dmfs_destroy,

drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_smfs.c

@@ -368,9 +368,35 @@ mlx5_ct_fs_smfs_ct_rule_del(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_ru
 	kfree(smfs_rule);
 }
 
+static int mlx5_ct_fs_smfs_ct_rule_update(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_rule,
+					  struct mlx5_flow_spec *spec, struct mlx5_flow_attr *attr)
+{
+	struct mlx5_ct_fs_smfs_rule *smfs_rule = container_of(fs_rule,
+							      struct mlx5_ct_fs_smfs_rule,
+							      fs_rule);
+	struct mlx5_ct_fs_smfs *fs_smfs = mlx5_ct_fs_priv(fs);
+	struct mlx5dr_action *actions[3];  /* We only need to create 3 actions, see below. */
+	struct mlx5dr_rule *rule;
+
+	actions[0] = smfs_rule->count_action;
+	actions[1] = attr->modify_hdr->action.dr_action;
+	actions[2] = fs_smfs->fwd_action;
+
+	rule = mlx5_smfs_rule_create(smfs_rule->smfs_matcher->dr_matcher, spec,
+				     ARRAY_SIZE(actions), actions, spec->flow_context.flow_source);
+	if (!rule)
+		return -EINVAL;
+
+	mlx5_smfs_rule_destroy(smfs_rule->rule);
+	smfs_rule->rule = rule;
+
+	return 0;
+}
+
 static struct mlx5_ct_fs_ops fs_smfs_ops = {
 	.ct_rule_add = mlx5_ct_fs_smfs_ct_rule_add,
 	.ct_rule_del = mlx5_ct_fs_smfs_ct_rule_del,
+	.ct_rule_update = mlx5_ct_fs_smfs_ct_rule_update,
 
 	.init = mlx5_ct_fs_smfs_init,
 	.destroy = mlx5_ct_fs_smfs_destroy,

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

@@ -876,15 +876,14 @@ mlx5_tc_ct_entry_add_rule(struct mlx5_tc_ct_priv *ct_priv,
 }
 
 static int
-mlx5_tc_ct_entry_replace_rule(struct mlx5_tc_ct_priv *ct_priv,
-			      struct flow_rule *flow_rule,
-			      struct mlx5_ct_entry *entry,
-			      bool nat, u8 zone_restore_id)
+mlx5_tc_ct_entry_update_rule(struct mlx5_tc_ct_priv *ct_priv,
+			     struct flow_rule *flow_rule,
+			     struct mlx5_ct_entry *entry,
+			     bool nat, u8 zone_restore_id)
 {
 	struct mlx5_ct_zone_rule *zone_rule = &entry->zone_rules[nat];
 	struct mlx5_flow_attr *attr = zone_rule->attr, *old_attr;
 	struct mlx5e_mod_hdr_handle *mh;
-	struct mlx5_ct_fs_rule *rule;
 	struct mlx5_flow_spec *spec;
 	int err;
 
@@ -902,29 +901,26 @@ mlx5_tc_ct_entry_replace_rule(struct mlx5_tc_ct_priv *ct_priv,
 	err = mlx5_tc_ct_entry_create_mod_hdr(ct_priv, attr, flow_rule, &mh, zone_restore_id,
 					      nat, mlx5_tc_ct_entry_in_ct_nat_table(entry));
 	if (err) {
-		ct_dbg("Failed to create ct entry mod hdr");
+		ct_dbg("Failed to create ct entry mod hdr, err: %d", err);
 		goto err_mod_hdr;
 	}
 
 	mlx5_tc_ct_set_tuple_match(ct_priv, spec, flow_rule);
 	mlx5e_tc_match_to_reg_match(spec, ZONE_TO_REG, entry->tuple.zone, MLX5_CT_ZONE_MASK);
 
-	rule = ct_priv->fs_ops->ct_rule_add(ct_priv->fs, spec, attr, flow_rule);
-	if (IS_ERR(rule)) {
-		err = PTR_ERR(rule);
-		ct_dbg("Failed to add replacement ct entry rule, nat: %d", nat);
+	err = ct_priv->fs_ops->ct_rule_update(ct_priv->fs, zone_rule->rule, spec, attr);
+	if (err) {
+		ct_dbg("Failed to update ct entry rule, nat: %d, err: %d", nat, err);
 		goto err_rule;
 	}
 
-	ct_priv->fs_ops->ct_rule_del(ct_priv->fs, zone_rule->rule);
-	zone_rule->rule = rule;
 	mlx5_tc_ct_entry_destroy_mod_hdr(ct_priv, old_attr, zone_rule->mh);
 	zone_rule->mh = mh;
 	mlx5_put_label_mapping(ct_priv, old_attr->ct_attr.ct_labels_id);
 
 	kfree(old_attr);
 	kvfree(spec);
-	ct_dbg("Replaced ct entry rule in zone %d", entry->tuple.zone);
+	ct_dbg("Updated ct entry rule in zone %d", entry->tuple.zone);
 
 	return 0;
 
@@ -1141,37 +1137,37 @@ mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv,
 }
 
 static int
-mlx5_tc_ct_entry_replace_rules(struct mlx5_tc_ct_priv *ct_priv,
-			       struct flow_rule *flow_rule,
-			       struct mlx5_ct_entry *entry,
-			       u8 zone_restore_id)
+mlx5_tc_ct_entry_update_rules(struct mlx5_tc_ct_priv *ct_priv,
+			      struct flow_rule *flow_rule,
+			      struct mlx5_ct_entry *entry,
+			      u8 zone_restore_id)
 {
 	int err = 0;
 
 	if (mlx5_tc_ct_entry_in_ct_table(entry)) {
-		err = mlx5_tc_ct_entry_replace_rule(ct_priv, flow_rule, entry, false,
-						    zone_restore_id);
+		err = mlx5_tc_ct_entry_update_rule(ct_priv, flow_rule, entry, false,
+						   zone_restore_id);
 		if (err)
 			return err;
 	}
 
 	if (mlx5_tc_ct_entry_in_ct_nat_table(entry)) {
-		err = mlx5_tc_ct_entry_replace_rule(ct_priv, flow_rule, entry, true,
-						    zone_restore_id);
+		err = mlx5_tc_ct_entry_update_rule(ct_priv, flow_rule, entry, true,
+						   zone_restore_id);
 		if (err && mlx5_tc_ct_entry_in_ct_table(entry))
 			mlx5_tc_ct_entry_del_rule(ct_priv, entry, false);
 	}
 	return err;
 }
 
 static int
-mlx5_tc_ct_block_flow_offload_replace(struct mlx5_ct_ft *ft, struct flow_rule *flow_rule,
-				      struct mlx5_ct_entry *entry, unsigned long cookie)
+mlx5_tc_ct_block_flow_offload_update(struct mlx5_ct_ft *ft, struct flow_rule *flow_rule,
+				     struct mlx5_ct_entry *entry, unsigned long cookie)
 {
 	struct mlx5_tc_ct_priv *ct_priv = ft->ct_priv;
 	int err;
 
-	err = mlx5_tc_ct_entry_replace_rules(ct_priv, flow_rule, entry, ft->zone_restore_id);
+	err = mlx5_tc_ct_entry_update_rules(ct_priv, flow_rule, entry, ft->zone_restore_id);
 	if (!err)
 		return 0;
 
@@ -1216,7 +1212,7 @@ mlx5_tc_ct_block_flow_offload_add(struct mlx5_ct_ft *ft,
 		entry->restore_cookie = meta_action->ct_metadata.cookie;
 		spin_unlock_bh(&ct_priv->ht_lock);
 
-		err = mlx5_tc_ct_block_flow_offload_replace(ft, flow_rule, entry, cookie);
+		err = mlx5_tc_ct_block_flow_offload_update(ft, flow_rule, entry, cookie);
 		mlx5_tc_ct_entry_put(entry);
 		return err;
 	}

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

@@ -109,6 +109,7 @@ struct mlx5e_tc_flow {
 	struct completion init_done;
 	struct completion del_hw_done;
 	struct mlx5_flow_attr *attr;
+	struct mlx5_flow_attr *extra_split_attr;
 	struct list_head attrs;
 	u32 chain_mapping;
 };

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

@@ -127,6 +127,7 @@ static void mlx5e_ipsec_packet_setup(void *obj, u32 pdn,
 		MLX5_SET(ipsec_aso, aso_ctx, remove_flow_pkt_cnt,
 			 attrs->lft.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->lft.soft_packet_limit != XFRM_INF) {