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net/mlx5e: TC, Refactor tc update skb function

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As a pre-step to process sampled packet in this function.

Signed-off-by: Chris Mi <cmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Chris Mi 2021-01-15 16:03:47 +08:00 • committed by Saeed Mahameed
parent 36a3196256
commit 7319a1cc3c
1 changed files with 33 additions and 26 deletions
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59
drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
View file

@ -611,20 +611,46 @@ static bool mlx5e_restore_tunnel(struct mlx5e_priv *priv, struct sk_buff *skb,
return true; return true;
} }
static bool mlx5e_restore_skb(struct sk_buff *skb, u32 chain, u32 reg_c1,
struct mlx5e_tc_update_priv *tc_priv)
{
struct mlx5e_priv *priv = netdev_priv(skb->dev);
u32 tunnel_id = reg_c1 >> ESW_TUN_OFFSET;
if (chain) {
struct mlx5_rep_uplink_priv *uplink_priv;
struct mlx5e_rep_priv *uplink_rpriv;
struct tc_skb_ext *tc_skb_ext;
struct mlx5_eswitch *esw;
u32 zone_restore_id;
tc_skb_ext = skb_ext_add(skb, TC_SKB_EXT);
if (!tc_skb_ext) {
WARN_ON(1);
return false;
}
tc_skb_ext->chain = chain;
zone_restore_id = reg_c1 & ESW_ZONE_ID_MASK;
esw = priv->mdev->priv.eswitch;
uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH);
uplink_priv = &uplink_rpriv->uplink_priv;
if (!mlx5e_tc_ct_restore_flow(uplink_priv->ct_priv, skb,
zone_restore_id))
return false;
}
return mlx5e_restore_tunnel(priv, skb, tc_priv, tunnel_id);
}
#endif /* CONFIG_NET_TC_SKB_EXT */ #endif /* CONFIG_NET_TC_SKB_EXT */
bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe, bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
struct sk_buff *skb, struct sk_buff *skb,
struct mlx5e_tc_update_priv *tc_priv) struct mlx5e_tc_update_priv *tc_priv)
{ {
#if IS_ENABLED(CONFIG_NET_TC_SKB_EXT)
u32 reg_c0, reg_c1, tunnel_id, zone_restore_id;
struct mlx5_rep_uplink_priv *uplink_priv;
struct mlx5e_rep_priv *uplink_rpriv;
struct mlx5_mapped_obj mapped_obj; struct mlx5_mapped_obj mapped_obj;
struct tc_skb_ext *tc_skb_ext;
struct mlx5_eswitch *esw; struct mlx5_eswitch *esw;
struct mlx5e_priv *priv; struct mlx5e_priv *priv;
u32 reg_c0, reg_c1;
int err; int err;
reg_c0 = (be32_to_cpu(cqe->sop_drop_qpn) & MLX5E_TC_FLOW_ID_MASK); reg_c0 = (be32_to_cpu(cqe->sop_drop_qpn) & MLX5E_TC_FLOW_ID_MASK);
@ -640,7 +666,6 @@ bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
priv = netdev_priv(skb->dev); priv = netdev_priv(skb->dev);
esw = priv->mdev->priv.eswitch; esw = priv->mdev->priv.eswitch;
err = mapping_find(esw->offloads.reg_c0_obj_pool, reg_c0, &mapped_obj); err = mapping_find(esw->offloads.reg_c0_obj_pool, reg_c0, &mapped_obj);
if (err) { if (err) {
netdev_dbg(priv->netdev, netdev_dbg(priv->netdev,
@ -649,31 +674,13 @@ bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
return false; return false;
} }
#if IS_ENABLED(CONFIG_NET_TC_SKB_EXT)
if (mapped_obj.type == MLX5_MAPPED_OBJ_CHAIN) { if (mapped_obj.type == MLX5_MAPPED_OBJ_CHAIN) {
if (mapped_obj.chain) { return mlx5e_restore_skb(skb, mapped_obj.chain, reg_c1, tc_priv);
tc_skb_ext = skb_ext_add(skb, TC_SKB_EXT);
if (!tc_skb_ext) {
WARN_ON(1);
return false;
}
tc_skb_ext->chain = mapped_obj.chain;
zone_restore_id = reg_c1 & ESW_ZONE_ID_MASK;
uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH);
uplink_priv = &uplink_rpriv->uplink_priv;
if (!mlx5e_tc_ct_restore_flow(uplink_priv->ct_priv, skb,
zone_restore_id))
return false;
}
} else { } else {
netdev_dbg(priv->netdev, "Invalid mapped object type: %d\n", mapped_obj.type); netdev_dbg(priv->netdev, "Invalid mapped object type: %d\n", mapped_obj.type);
return false; return false;
} }
tunnel_id = reg_c1 >> ESW_TUN_OFFSET;
return mlx5e_restore_tunnel(priv, skb, tc_priv, tunnel_id);
#endif /* CONFIG_NET_TC_SKB_EXT */ #endif /* CONFIG_NET_TC_SKB_EXT */
return true; return true;