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net/mlx5e: add mlx5e_rep_indr_setup_ft_cb support 

Add mlx5e_rep_indr_setup_ft_cb to support indr block setup
in FT mode.
Both tc rules and flow table rules are of the same format,
It can re-use tc parsing for that, and move the flow table rules
to their steering domain(the specific chain_index), the indr
block offload in FT also follow this scenario.

Signed-off-by: wenxu <wenxu@ucloud.cn>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
wenxu 2020-03-25 20:18:59 +08:00 committed by Saeed Mahameed
parent 5a37a8df80
commit 07c264ab8e
1 changed files with 49 additions and 0 deletions
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49
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
View File

@ -732,6 +732,52 @@ static int mlx5e_rep_indr_setup_tc_cb(enum tc_setup_type type,
}
}
static int mlx5e_rep_indr_setup_ft_cb(enum tc_setup_type type,
void *type_data, void *indr_priv)
{
struct mlx5e_rep_indr_block_priv *priv = indr_priv;
struct flow_cls_offload *f = type_data;
struct flow_cls_offload tmp;
struct mlx5e_priv *mpriv;
struct mlx5_eswitch *esw;
unsigned long flags;
int err;
mpriv = netdev_priv(priv->rpriv->netdev);
esw = mpriv->mdev->priv.eswitch;
flags = MLX5_TC_FLAG(EGRESS) |
MLX5_TC_FLAG(ESW_OFFLOAD) |
MLX5_TC_FLAG(FT_OFFLOAD);
switch (type) {
case TC_SETUP_CLSFLOWER:
memcpy(&tmp, f, sizeof(*f));
/* Re-use tc offload path by moving the ft flow to the
* reserved ft chain.
*
* FT offload can use prio range [0, INT_MAX], so we normalize
* it to range [1, mlx5_esw_chains_get_prio_range(esw)]
* as with tc, where prio 0 isn't supported.
*
* We only support chain 0 of FT offload.
*/
if (!mlx5_esw_chains_prios_supported(esw) ||
tmp.common.prio >= mlx5_esw_chains_get_prio_range(esw) ||
tmp.common.chain_index)
return -EOPNOTSUPP;
tmp.common.chain_index = mlx5_esw_chains_get_ft_chain(esw);
tmp.common.prio++;
err = mlx5e_rep_indr_offload(priv->netdev, &tmp, priv, flags);
memcpy(&f->stats, &tmp.stats, sizeof(f->stats));
return err;
default:
return -EOPNOTSUPP;
}
}
static void mlx5e_rep_indr_block_unbind(void *cb_priv)
{
struct mlx5e_rep_indr_block_priv *indr_priv = cb_priv;
@ -809,6 +855,9 @@ int mlx5e_rep_indr_setup_cb(struct net_device *netdev, void *cb_priv,
case TC_SETUP_BLOCK:
return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data,
mlx5e_rep_indr_setup_tc_cb);
case TC_SETUP_FT:
return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data,
mlx5e_rep_indr_setup_ft_cb);
default:
return -EOPNOTSUPP;
}