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Date: Tue, 7 Feb 2023 16:37:02 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>, Roi Dayan <roid@...dia.com>,
Maor Dickman <maord@...dia.com>
Subject: [net-next 05/15] net/mlx5e: Remove redundant code for handling vlan actions
From: Roi Dayan <roid@...dia.com>
Remove unused code which was used only with deprecated HW
which didn't support vlan actions.
Signed-off-by: Roi Dayan <roid@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../mellanox/mlx5/core/en/tc/act/vlan.c | 35 +--
.../net/ethernet/mellanox/mlx5/core/en_tc.c | 9 -
.../net/ethernet/mellanox/mlx5/core/eswitch.h | 5 -
.../mellanox/mlx5/core/eswitch_offloads.c | 208 +-----------------
4 files changed, 14 insertions(+), 243 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/vlan.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/vlan.c
index b86ac604d0c2..2e0d88b513aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/vlan.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/vlan.c
@@ -44,19 +44,17 @@ parse_tc_vlan_action(struct mlx5e_priv *priv,
return -EOPNOTSUPP;
}
+ if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, vlan_idx)) {
+ NL_SET_ERR_MSG_MOD(extack, "firmware vlan actions is not supported");
+ return -EOPNOTSUPP;
+ }
+
switch (act->id) {
case FLOW_ACTION_VLAN_POP:
- if (vlan_idx) {
- if (!mlx5_eswitch_vlan_actions_supported(priv->mdev,
- MLX5_FS_VLAN_DEPTH)) {
- NL_SET_ERR_MSG_MOD(extack, "vlan pop action is not supported");
- return -EOPNOTSUPP;
- }
-
+ if (vlan_idx)
*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2;
- } else {
+ else
*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
- }
break;
case FLOW_ACTION_VLAN_PUSH:
attr->vlan_vid[vlan_idx] = act->vlan.vid;
@@ -65,25 +63,10 @@ parse_tc_vlan_action(struct mlx5e_priv *priv,
if (!attr->vlan_proto[vlan_idx])
attr->vlan_proto[vlan_idx] = htons(ETH_P_8021Q);
- if (vlan_idx) {
- if (!mlx5_eswitch_vlan_actions_supported(priv->mdev,
- MLX5_FS_VLAN_DEPTH)) {
- NL_SET_ERR_MSG_MOD(extack,
- "vlan push action is not supported for vlan depth > 1");
- return -EOPNOTSUPP;
- }
-
+ if (vlan_idx)
*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2;
- } else {
- if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, 1) &&
- (act->vlan.proto != htons(ETH_P_8021Q) ||
- act->vlan.prio)) {
- NL_SET_ERR_MSG_MOD(extack, "vlan push action is not supported");
- return -EOPNOTSUPP;
- }
-
+ else
*action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
- }
break;
case FLOW_ACTION_VLAN_POP_ETH:
parse_state->eth_pop = true;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 4e6f5caf8ab6..bf4cff8b1d42 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1884,7 +1884,6 @@ post_process_attr(struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr,
struct netlink_ext_ack *extack)
{
- struct mlx5_eswitch *esw = flow->priv->mdev->priv.eswitch;
bool vf_tun;
int err = 0;
@@ -1896,12 +1895,6 @@ post_process_attr(struct mlx5e_tc_flow *flow,
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) {
err = mlx5e_tc_attach_mod_hdr(flow->priv, flow, attr);
if (err)
@@ -2105,8 +2098,6 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv,
if (mlx5_flow_has_geneve_opt(flow))
mlx5_geneve_tlv_option_del(priv->mdev->geneve);
- mlx5_eswitch_del_vlan_action(esw, attr);
-
if (flow->decap_route)
mlx5e_detach_decap_route(priv, flow);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 5b5a215a7dc5..fd03f076551b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -222,7 +222,6 @@ struct mlx5_eswitch_fdb {
struct mlx5_flow_handle **send_to_vport_meta_rules;
struct mlx5_flow_handle *miss_rule_uni;
struct mlx5_flow_handle *miss_rule_multi;
- int vlan_push_pop_refcount;
struct mlx5_fs_chains *esw_chains_priv;
struct {
@@ -520,10 +519,6 @@ int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
struct netlink_ext_ack *extack);
void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
-int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
- struct mlx5_flow_attr *attr);
-int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
- struct mlx5_flow_attr *attr);
int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
u16 vport, u16 vlan, u8 qos, u8 set_flags);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 3a82e385544d..8fb09143e9e8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -579,16 +579,16 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
if (esw->mode != MLX5_ESWITCH_OFFLOADS)
return ERR_PTR(-EOPNOTSUPP);
+ if (!mlx5_eswitch_vlan_actions_supported(esw->dev, 1))
+ return ERR_PTR(-EOPNOTSUPP);
+
dest = kcalloc(MLX5_MAX_FLOW_FWD_VPORTS + 1, sizeof(*dest), GFP_KERNEL);
if (!dest)
return ERR_PTR(-ENOMEM);
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, 1))
- 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) {
+
+ if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) {
flow_act.vlan[0].ethtype = ntohs(esw_attr->vlan_proto[0]);
flow_act.vlan[0].vid = esw_attr->vlan_vid[0];
flow_act.vlan[0].prio = esw_attr->vlan_prio[0];
@@ -829,204 +829,6 @@ mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw,
__mlx5_eswitch_del_rule(esw, rule, attr, true);
}
-static int esw_set_global_vlan_pop(struct mlx5_eswitch *esw, u8 val)
-{
- struct mlx5_eswitch_rep *rep;
- unsigned long i;
- int err = 0;
-
- esw_debug(esw->dev, "%s applying global %s policy\n", __func__, val ? "pop" : "none");
- mlx5_esw_for_each_host_func_vport(esw, i, rep, esw->esw_funcs.num_vfs) {
- if (atomic_read(&rep->rep_data[REP_ETH].state) != REP_LOADED)
- continue;
-
- err = __mlx5_eswitch_set_vport_vlan(esw, rep->vport, 0, 0, val);
- if (err)
- goto out;
- }
-
-out:
- return err;
-}
-
-static struct mlx5_eswitch_rep *
-esw_vlan_action_get_vport(struct mlx5_esw_flow_attr *attr, bool push, bool pop)
-{
- struct mlx5_eswitch_rep *in_rep, *out_rep, *vport = NULL;
-
- in_rep = attr->in_rep;
- out_rep = attr->dests[0].rep;
-
- if (push)
- vport = in_rep;
- else if (pop)
- vport = out_rep;
- else
- vport = in_rep;
-
- return vport;
-}
-
-static int esw_add_vlan_action_check(struct mlx5_esw_flow_attr *attr,
- bool push, bool pop, bool fwd)
-{
- struct mlx5_eswitch_rep *in_rep, *out_rep;
-
- if ((push || pop) && !fwd)
- goto out_notsupp;
-
- in_rep = attr->in_rep;
- out_rep = attr->dests[0].rep;
-
- if (push && in_rep->vport == MLX5_VPORT_UPLINK)
- goto out_notsupp;
-
- if (pop && out_rep->vport == MLX5_VPORT_UPLINK)
- goto out_notsupp;
-
- /* vport has vlan push configured, can't offload VF --> wire rules w.o it */
- if (!push && !pop && fwd)
- if (in_rep->vlan && out_rep->vport == MLX5_VPORT_UPLINK)
- goto out_notsupp;
-
- /* 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[0]))
- goto out_notsupp;
-
- return 0;
-
-out_notsupp:
- return -EOPNOTSUPP;
-}
-
-int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
- struct mlx5_flow_attr *attr)
-{
- struct offloads_fdb *offloads = &esw->fdb_table.offloads;
- struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
- struct mlx5_eswitch_rep *vport = NULL;
- 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, 1))
- 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) &&
- !attr->dest_chain);
-
- mutex_lock(&esw->state_lock);
-
- err = esw_add_vlan_action_check(esw_attr, push, pop, fwd);
- if (err)
- goto unlock;
-
- attr->flags &= ~MLX5_ATTR_FLAG_VLAN_HANDLED;
-
- vport = esw_vlan_action_get_vport(esw_attr, push, pop);
-
- if (!push && !pop && fwd) {
- /* tracks VF --> wire rules without vlan push action */
- if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK) {
- vport->vlan_refcount++;
- attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED;
- }
-
- goto unlock;
- }
-
- if (!push && !pop)
- goto unlock;
-
- if (!(offloads->vlan_push_pop_refcount)) {
- /* it's the 1st vlan rule, apply global vlan pop policy */
- err = esw_set_global_vlan_pop(esw, SET_VLAN_STRIP);
- if (err)
- goto out;
- }
- offloads->vlan_push_pop_refcount++;
-
- if (push) {
- if (vport->vlan_refcount)
- goto skip_set_push;
-
- err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, esw_attr->vlan_vid[0],
- 0, SET_VLAN_INSERT | SET_VLAN_STRIP);
- if (err)
- goto out;
- vport->vlan = esw_attr->vlan_vid[0];
-skip_set_push:
- vport->vlan_refcount++;
- }
-out:
- if (!err)
- attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED;
-unlock:
- mutex_unlock(&esw->state_lock);
- return err;
-}
-
-int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
- struct mlx5_flow_attr *attr)
-{
- struct offloads_fdb *offloads = &esw->fdb_table.offloads;
- struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
- struct mlx5_eswitch_rep *vport = NULL;
- 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, 1))
- return 0;
-
- if (!(attr->flags & MLX5_ATTR_FLAG_VLAN_HANDLED))
- 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);
-
- mutex_lock(&esw->state_lock);
-
- vport = esw_vlan_action_get_vport(esw_attr, push, pop);
-
- if (!push && !pop && fwd) {
- /* tracks VF --> wire rules without vlan push action */
- if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK)
- vport->vlan_refcount--;
-
- goto out;
- }
-
- if (push) {
- vport->vlan_refcount--;
- if (vport->vlan_refcount)
- goto skip_unset_push;
-
- vport->vlan = 0;
- err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport,
- 0, 0, SET_VLAN_STRIP);
- if (err)
- goto out;
- }
-
-skip_unset_push:
- offloads->vlan_push_pop_refcount--;
- if (offloads->vlan_push_pop_refcount)
- goto out;
-
- /* no more vlan rules, stop global vlan pop policy */
- err = esw_set_global_vlan_pop(esw, 0);
-
-out:
- mutex_unlock(&esw->state_lock);
- return err;
-}
-
struct mlx5_flow_handle *
mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
struct mlx5_eswitch *from_esw,
--
2.39.1
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