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RDMA/mlx5: Access the prio bypass inside the FDB flow table namespace 

Now that we have a specific prio inside the FDB namespace allow retrieving
it from the RDMA side.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Mark Bloch 2019-03-28 15:46:21 +02:00 committed by Jason Gunthorpe
parent 2e5b8a0116
commit 13a4376568
2 changed files with 21 additions and 11 deletions
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31
drivers/infiniband/hw/mlx5/main.c
View File

@ -3809,11 +3809,16 @@ _get_flow_table(struct mlx5_ib_dev *dev,
bool mcast)
{
struct mlx5_flow_namespace *ns = NULL;
struct mlx5_ib_flow_prio *prio;
int max_table_size;
struct mlx5_ib_flow_prio *prio = NULL;
int max_table_size = 0;
u32 flags = 0;
int priority;
if (mcast)
priority = MLX5_IB_FLOW_MCAST_PRIO;
else
priority = ib_prio_to_core_prio(fs_matcher->priority, false);
if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_BYPASS) {
max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,
log_max_ft_size));
@ -3822,29 +3827,33 @@ _get_flow_table(struct mlx5_ib_dev *dev,
if (MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,
reformat_l3_tunnel_to_l2))
flags |= MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT;
} else { /* Can only be MLX5_FLOW_NAMESPACE_EGRESS */
max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev,
log_max_ft_size));
} else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_EGRESS) {
max_table_size = BIT(
MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev, log_max_ft_size));
if (MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev, reformat))
flags |= MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT;
} else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB) {
max_table_size = BIT(
MLX5_CAP_ESW_FLOWTABLE_FDB(dev->mdev, log_max_ft_size));
priority = FDB_BYPASS_PATH;
}
if (max_table_size < MLX5_FS_MAX_ENTRIES)
return ERR_PTR(-ENOMEM);
if (mcast)
priority = MLX5_IB_FLOW_MCAST_PRIO;
else
priority = ib_prio_to_core_prio(fs_matcher->priority, false);
ns = mlx5_get_flow_namespace(dev->mdev, fs_matcher->ns_type);
if (!ns)
return ERR_PTR(-ENOTSUPP);
if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_BYPASS)
prio = &dev->flow_db->prios[priority];
else
else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_EGRESS)
prio = &dev->flow_db->egress_prios[priority];
else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB)
prio = &dev->flow_db->fdb;
if (!prio)
return ERR_PTR(-EINVAL);
if (prio->flow_table)
return prio;

1
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -194,6 +194,7 @@ struct mlx5_ib_flow_db {
struct mlx5_ib_flow_prio egress_prios[MLX5_IB_NUM_FLOW_FT];
struct mlx5_ib_flow_prio sniffer[MLX5_IB_NUM_SNIFFER_FTS];
struct mlx5_ib_flow_prio egress[MLX5_IB_NUM_EGRESS_FTS];
struct mlx5_ib_flow_prio fdb;
struct mlx5_flow_table *lag_demux_ft;
/* Protect flow steering bypass flow tables
* when add/del flow rules.