Commit 6acfbf38 authored by Or Gerlitz's avatar Or Gerlitz Committed by Saeed Mahameed

net/mlx5e: Offload tc vlan push/pop using HW action

Currently, we are emulating the offload of vlan push/pop actions using
global setup as done by commit f5f82476 ("net/mlx5: E-Switch, Support
VLAN actions in the offloads mode"). With newer NICs, we can apply a flow
action for that matter, do that while keeping the emulated path for the
older HW brands.
Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: default avatarMark Bloch <markb@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 0c06897a
......@@ -2530,12 +2530,17 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) {
attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
} else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) {
if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q) ||
tcf_vlan_push_prio(a))
return -EOPNOTSUPP;
attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
attr->vlan = tcf_vlan_push_vid(a);
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;
}
......
......@@ -232,7 +232,9 @@ struct mlx5_esw_flow_attr {
struct mlx5_eswitch_rep *out_rep;
int action;
u16 vlan;
__be16 vlan_proto;
u16 vlan_vid;
u8 vlan_prio;
bool vlan_handled;
u32 encap_id;
u32 mod_hdr_id;
......@@ -255,6 +257,12 @@ int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
int vport, u16 vlan, u8 qos, u8 set_flags);
static inline bool mlx5_eswitch_vlan_actions_supported(struct mlx5_core_dev *dev)
{
return MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan) &&
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan);
}
#define MLX5_DEBUG_ESWITCH_MASK BIT(3)
#define esw_info(dev, format, ...) \
......
......@@ -58,8 +58,16 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
if (esw->mode != SRIOV_OFFLOADS)
return ERR_PTR(-EOPNOTSUPP);
/* per flow vlan pop/push is emulated, don't set that into the firmware */
flow_act.action = attr->action & ~(MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH | MLX5_FLOW_CONTEXT_ACTION_VLAN_POP);
flow_act.action = attr->action;
/* if per flow vlan pop/push is emulated, don't set that into the firmware */
if (!mlx5_eswitch_vlan_actions_supported(esw->dev))
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.ethtype = ntohs(attr->vlan_proto);
flow_act.vlan.vid = attr->vlan_vid;
flow_act.vlan.prio = attr->vlan_prio;
}
if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
dest[i].type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
......@@ -185,7 +193,7 @@ 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))
if (push && in_rep->vlan_refcount && (in_rep->vlan != attr->vlan_vid))
goto out_notsupp;
return 0;
......@@ -202,6 +210,10 @@ int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
bool push, pop, fwd;
int err = 0;
/* nop if we're on the vlan push/pop non emulation mode */
if (mlx5_eswitch_vlan_actions_supported(esw->dev))
return 0;
push = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH);
pop = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP);
fwd = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST);
......@@ -239,11 +251,11 @@ 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, 0,
err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, attr->vlan_vid, 0,
SET_VLAN_INSERT | SET_VLAN_STRIP);
if (err)
goto out;
vport->vlan = attr->vlan;
vport->vlan = attr->vlan_vid;
skip_set_push:
vport->vlan_refcount++;
}
......@@ -261,6 +273,10 @@ int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
bool push, pop, fwd;
int err = 0;
/* nop if we're on the vlan push/pop non emulation mode */
if (mlx5_eswitch_vlan_actions_supported(esw->dev))
return 0;
if (!attr->vlan_handled)
return 0;
......
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