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net/mlx5e: Refactor tc vlan push/pop actions offloading

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Extract actions offloading code to a new function, and also extend data
structures for double vlan actions.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Jianbo Liu 2018-07-03 05:46:13 +00:00 committed by Saeed Mahameed
parent 699e96ddf4
commit 1482bd3d50
3 changed files with 41 additions and 28 deletions
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51
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View file

@ -2578,6 +2578,32 @@ out_err:
return err;
}
static int parse_tc_vlan_action(struct mlx5e_priv *priv,
const struct tc_action *a,
struct mlx5_esw_flow_attr *attr,
u32 *action)
{
if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) {
*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
} else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) {
*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
attr->vlan_vid[0] = tcf_vlan_push_vid(a);
if (mlx5_eswitch_vlan_actions_supported(priv->mdev)) {
attr->vlan_prio[0] = tcf_vlan_push_prio(a);
attr->vlan_proto[0] = tcf_vlan_push_proto(a);
if (!attr->vlan_proto[0])
attr->vlan_proto[0] = htons(ETH_P_8021Q);
} else if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q) ||
tcf_vlan_push_prio(a)) {
return -EOPNOTSUPP;
}
} else { /* action is TCA_VLAN_ACT_MODIFY */
return -EOPNOTSUPP;
}
return 0;
}
static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
struct mlx5e_tc_flow_parse_attr *parse_attr,
struct mlx5e_tc_flow *flow)
@ -2589,6 +2615,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
LIST_HEAD(actions);
bool encap = false;
u32 action = 0;
int err;
if (!tcf_exts_has_actions(exts))
return -EINVAL;
@ -2605,8 +2632,6 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
}
if (is_tcf_pedit(a)) {
int err;
err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_FDB,
parse_attr);
if (err)
@ -2673,23 +2698,11 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
}
if (is_tcf_vlan(a)) {
if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) {
action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
} else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) {
action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
attr->vlan_vid = tcf_vlan_push_vid(a);
if (mlx5_eswitch_vlan_actions_supported(priv->mdev)) {
attr->vlan_prio = tcf_vlan_push_prio(a);
attr->vlan_proto = tcf_vlan_push_proto(a);
if (!attr->vlan_proto)
attr->vlan_proto = htons(ETH_P_8021Q);
} else if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q) ||
tcf_vlan_push_prio(a)) {
return -EOPNOTSUPP;
}
} else { /* action is TCA_VLAN_ACT_MODIFY */
return -EOPNOTSUPP;
}
err = parse_tc_vlan_action(priv, a, attr, &action);
if (err)
return err;
attr->mirror_count = attr->out_count;
continue;
}

6
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View file

@ -256,9 +256,9 @@ struct mlx5_esw_flow_attr {
int out_count;
int action;
__be16 vlan_proto;
u16 vlan_vid;
u8 vlan_prio;
__be16 vlan_proto[1];
u16 vlan_vid[1];
u8 vlan_prio[1];
bool vlan_handled;
u32 encap_id;
u32 mod_hdr_id;

12
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View file

@ -70,9 +70,9 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
flow_act.action &= ~(MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH |
MLX5_FLOW_CONTEXT_ACTION_VLAN_POP);
else if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) {
flow_act.vlan[0].ethtype = ntohs(attr->vlan_proto);
flow_act.vlan[0].vid = attr->vlan_vid;
flow_act.vlan[0].prio = attr->vlan_prio;
flow_act.vlan[0].ethtype = ntohs(attr->vlan_proto[0]);
flow_act.vlan[0].vid = attr->vlan_vid[0];
flow_act.vlan[0].prio = attr->vlan_prio[0];
}
if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
@ -266,7 +266,7 @@ static int esw_add_vlan_action_check(struct mlx5_esw_flow_attr *attr,
/* protects against (1) setting rules with different vlans to push and
* (2) setting rules w.o vlans (attr->vlan = 0) && w. vlans to push (!= 0)
*/
if (push && in_rep->vlan_refcount && (in_rep->vlan != attr->vlan_vid))
if (push && in_rep->vlan_refcount && (in_rep->vlan != attr->vlan_vid[0]))
goto out_notsupp;
return 0;
@ -324,11 +324,11 @@ int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
if (vport->vlan_refcount)
goto skip_set_push;
err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, attr->vlan_vid, 0,
err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, attr->vlan_vid[0], 0,
SET_VLAN_INSERT | SET_VLAN_STRIP);
if (err)
goto out;
vport->vlan = attr->vlan_vid;
vport->vlan = attr->vlan_vid[0];
skip_set_push:
vport->vlan_refcount++;
}