diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2017-01-25 19:31:33 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-03-28 15:34:08 +0300 |
| commit | 2f4fe4cab073c60c1a70cb540662c0a91d133946 (patch) | |
| tree | d2c3d7fa55a44c7f357f5965deab4fe3a8821007 /drivers/net | |
| parent | d79b6df6b10a206e2fe14a13318283712cd42b71 (diff) | |
| download | linux-2f4fe4cab073c60c1a70cb540662c0a91d133946.tar.bz2 | |
net/mlx5e: Add offloading of NIC TC pedit (header re-write) actions
This includes calling the parsing code that translates from pedit
speak to the HW API, allocation (deallocation) of a modify header
context and setting the modify header id associated with this
context to the FTE of that flow.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 3a31195f0d9c..4045b4768294 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -52,6 +52,7 @@ struct mlx5_nic_flow_attr { u32 action; u32 flow_tag; + u32 mod_hdr_id; }; enum { @@ -97,10 +98,12 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, .action = attr->action, .flow_tag = attr->flow_tag, .encap_id = 0, + .modify_id = attr->mod_hdr_id, }; struct mlx5_fc *counter = NULL; struct mlx5_flow_handle *rule; bool table_created = false; + int err; if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; @@ -114,6 +117,18 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, dest.counter = counter; } + if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { + err = mlx5_modify_header_alloc(dev, MLX5_FLOW_NAMESPACE_KERNEL, + parse_attr->num_mod_hdr_actions, + parse_attr->mod_hdr_actions, + &attr->mod_hdr_id); + kfree(parse_attr->mod_hdr_actions); + if (err) { + rule = ERR_PTR(err); + goto err_create_mod_hdr_id; + } + } + if (IS_ERR_OR_NULL(priv->fs.tc.t)) { priv->fs.tc.t = mlx5_create_auto_grouped_flow_table(priv->fs.ns, @@ -146,6 +161,10 @@ err_add_rule: priv->fs.tc.t = NULL; } err_create_ft: + if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) + mlx5_modify_header_dealloc(priv->mdev, + attr->mod_hdr_id); +err_create_mod_hdr_id: mlx5_fc_destroy(dev, counter); return rule; @@ -164,6 +183,10 @@ static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, mlx5_destroy_flow_table(priv->fs.tc.t); priv->fs.tc.t = NULL; } + + if (flow->nic_attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) + mlx5_modify_header_dealloc(priv->mdev, + flow->nic_attr->mod_hdr_id); } static void mlx5e_detach_encap(struct mlx5e_priv *priv, @@ -955,6 +978,7 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, struct mlx5_nic_flow_attr *attr = flow->nic_attr; const struct tc_action *a; LIST_HEAD(actions); + int err; if (tc_no_actions(exts)) return -EINVAL; @@ -976,6 +1000,17 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, continue; } + if (is_tcf_pedit(a)) { + err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_KERNEL, + parse_attr); + if (err) + return err; + + attr->action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | + MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + continue; + } + if (is_tcf_skbedit_mark(a)) { u32 mark = tcf_skbedit_mark(a); |