diff mbox series

[net-next,03/15] net/mlx5e: TC, reuse flow attribute post parser processing

Message ID 20221203221337.29267-4-saeed@kernel.org (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series [net-next,01/15] net/mlx5e: E-Switch, handle flow attribute with no destinations | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Pull request is its own cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch warning WARNING: line length of 86 exceeds 80 columns WARNING: line length of 87 exceeds 80 columns WARNING: line length of 98 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Saeed Mahameed Dec. 3, 2022, 10:13 p.m. UTC 
From: Oz Shlomo <ozsh@nvidia.com>

After the tc action parsing phase the flow attribute is initialized with
relevant eswitch offload objects such as tunnel, vlan, header modify and
counter attributes. The post processing is done both for fdb and post-action
attributes.

Reuse the flow attribute post parsing logic by both fdb and post-action
offloads.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../net/ethernet/mellanox/mlx5/core/en_tc.c   | 96 ++++++++++---------
 1 file changed, 51 insertions(+), 45 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 10d1609ece58..46222541e435 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -606,6 +606,12 @@  int mlx5e_get_flow_namespace(struct mlx5e_tc_flow *flow)
 		MLX5_FLOW_NAMESPACE_FDB : MLX5_FLOW_NAMESPACE_KERNEL;
 }
 
+static struct mlx5_core_dev *
+get_flow_counter_dev(struct mlx5e_tc_flow *flow)
+{
+	return mlx5e_is_eswitch_flow(flow) ? flow->attr->esw_attr->counter_dev : flow->priv->mdev;
+}
+
 static struct mod_hdr_tbl *
 get_mod_hdr_table(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow)
 {
@@ -1718,6 +1724,48 @@  clean_encap_dests(struct mlx5e_priv *priv,
 	}
 }
 
+static int
+post_process_attr(struct mlx5e_tc_flow *flow,
+		  struct mlx5_flow_attr *attr,
+		  bool is_post_act_attr,
+		  struct netlink_ext_ack *extack)
+{
+	struct mlx5_eswitch *esw = flow->priv->mdev->priv.eswitch;
+	bool vf_tun;
+	int err = 0;
+
+	err = set_encap_dests(flow->priv, flow, attr, extack, &vf_tun);
+	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) {
+		if (vf_tun || is_post_act_attr) {
+			err = mlx5e_tc_add_flow_mod_hdr(flow->priv, flow, attr);
+			if (err)
+				goto err_out;
+		} else {
+			err = mlx5e_attach_mod_hdr(flow->priv, flow, attr->parse_attr);
+			if (err)
+				goto err_out;
+		}
+	}
+
+	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
+		err = alloc_flow_attr_counter(get_flow_counter_dev(flow), attr);
+		if (err)
+			goto err_out;
+	}
+
+err_out:
+	return err;
+}
+
 static int
 mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 		      struct mlx5e_tc_flow *flow,
@@ -1728,7 +1776,6 @@  mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 	struct mlx5_flow_attr *attr = flow->attr;
 	struct mlx5_esw_flow_attr *esw_attr;
 	u32 max_prio, max_chain;
-	bool vf_tun;
 	int err = 0;
 
 	parse_attr = attr->parse_attr;
@@ -1818,32 +1865,10 @@  mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 		esw_attr->int_port = int_port;
 	}
 
-	err = set_encap_dests(priv, flow, attr, extack, &vf_tun);
-	if (err)
-		goto err_out;
-
-	err = mlx5_eswitch_add_vlan_action(esw, attr);
+	err = post_process_attr(flow, attr, false, extack);
 	if (err)
 		goto err_out;
 
-	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) {
-		if (vf_tun) {
-			err = mlx5e_tc_add_flow_mod_hdr(priv, flow, attr);
-			if (err)
-				goto err_out;
-		} else {
-			err = mlx5e_attach_mod_hdr(priv, flow, parse_attr);
-			if (err)
-				goto err_out;
-		}
-	}
-
-	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
-		err = alloc_flow_attr_counter(esw_attr->counter_dev, attr);
-		if (err)
-			goto err_out;
-	}
-
 	/* we get here if one of the following takes place:
 	 * (1) there's no error
 	 * (2) there's an encap action and we don't have valid neigh
@@ -3639,12 +3664,6 @@  mlx5e_clone_flow_attr_for_post_act(struct mlx5_flow_attr *attr,
 	return attr2;
 }
 
-static struct mlx5_core_dev *
-get_flow_counter_dev(struct mlx5e_tc_flow *flow)
-{
-	return mlx5e_is_eswitch_flow(flow) ? flow->attr->esw_attr->counter_dev : flow->priv->mdev;
-}
-
 struct mlx5_flow_attr *
 mlx5e_tc_get_encap_attr(struct mlx5e_tc_flow *flow)
 {
@@ -3754,7 +3773,6 @@  alloc_flow_post_acts(struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack)
 	struct mlx5e_post_act *post_act = get_post_action(flow->priv);
 	struct mlx5_flow_attr *attr, *next_attr = NULL;
 	struct mlx5e_post_act_handle *handle;
-	bool vf_tun;
 	int err;
 
 	/* This is going in reverse order as needed.
@@ -3776,26 +3794,14 @@  alloc_flow_post_acts(struct mlx5e_tc_flow *flow, struct netlink_ext_ack *extack)
 		if (list_is_last(&attr->list, &flow->attrs))
 			break;
 
-		err = set_encap_dests(flow->priv, flow, attr, extack, &vf_tun);
+		err = actions_prepare_mod_hdr_actions(flow->priv, flow, attr, extack);
 		if (err)
 			goto out_free;
 
-		err = actions_prepare_mod_hdr_actions(flow->priv, flow, attr, extack);
+		err = post_process_attr(flow, attr, true, extack);
 		if (err)
 			goto out_free;
 
-		if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) {
-			err = mlx5e_tc_add_flow_mod_hdr(flow->priv, flow, attr);
-			if (err)
-				goto out_free;
-		}
-
-		if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
-			err = alloc_flow_attr_counter(get_flow_counter_dev(flow), attr);
-			if (err)
-				goto out_free;
-		}
-
 		handle = mlx5e_tc_post_act_add(post_act, attr);
 		if (IS_ERR(handle)) {
 			err = PTR_ERR(handle);