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net/mlx5: Add new miss flow table action 

Flow table supports three types of miss action:
1. Default miss action - go to default miss table according to table.
2. Go to specific table.
3. Switch domain - go to the root table of an alternative steering
   table domain.

New table miss action was added - switch_domain.
The next domain for RDMA_RX namespace is the NIC RX domain.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Maor Gottlieb 2019-04-29 18:14:14 +00:00 committed by Saeed Mahameed
parent d83eb50e29
commit f6f7d6b5bd
4 changed files with 25 additions and 5 deletions
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13
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
View File

@ -172,9 +172,14 @@ static int mlx5_cmd_create_flow_table(struct mlx5_flow_root_namespace *ns,
case FS_FT_OP_MOD_NORMAL:
if (next_ft) {
MLX5_SET(create_flow_table_in, in,
flow_table_context.table_miss_action, 1);
flow_table_context.table_miss_action,
MLX5_FLOW_TABLE_MISS_ACTION_FWD);
MLX5_SET(create_flow_table_in, in,
flow_table_context.table_miss_id, next_ft->id);
} else {
MLX5_SET(create_flow_table_in, in,
flow_table_context.table_miss_action,
ns->def_miss_action);
}
break;
@ -246,13 +251,15 @@ static int mlx5_cmd_modify_flow_table(struct mlx5_flow_root_namespace *ns,
MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
if (next_ft) {
MLX5_SET(modify_flow_table_in, in,
flow_table_context.table_miss_action, 1);
flow_table_context.table_miss_action,
MLX5_FLOW_TABLE_MISS_ACTION_FWD);
MLX5_SET(modify_flow_table_in, in,
flow_table_context.table_miss_id,
next_ft->id);
} else {
MLX5_SET(modify_flow_table_in, in,
flow_table_context.table_miss_action, 0);
flow_table_context.table_miss_action,
ns->def_miss_action);
}
}

6
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
View File

@ -2504,6 +2504,9 @@ static int init_rdma_rx_root_ns(struct mlx5_flow_steering *steering)
if (!steering->rdma_rx_root_ns)
return -ENOMEM;
steering->rdma_rx_root_ns->def_miss_action =
MLX5_FLOW_TABLE_MISS_ACTION_SWITCH_DOMAIN;
/* Create single prio */
prio = fs_create_prio(&steering->rdma_rx_root_ns->ns, 0, 1);
if (IS_ERR(prio)) {
@ -2748,7 +2751,8 @@ int mlx5_init_fs(struct mlx5_core_dev *dev)
goto err;
}
if (MLX5_CAP_FLOWTABLE_RDMA_RX(dev, ft_support)) {
if (MLX5_CAP_FLOWTABLE_RDMA_RX(dev, ft_support) &&
MLX5_CAP_FLOWTABLE_RDMA_RX(dev, table_miss_action_domain)) {
err = init_rdma_rx_root_ns(steering);
if (err)
goto err;

1
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
View File

@ -218,6 +218,7 @@ struct mlx5_flow_root_namespace {
struct mutex chain_lock;
struct list_head underlay_qpns;
const struct mlx5_flow_cmds *cmds;
enum mlx5_flow_table_miss_action def_miss_action;
};
int mlx5_init_fc_stats(struct mlx5_core_dev *dev);

10
include/linux/mlx5/mlx5_ifc.h
View File

@ -370,7 +370,9 @@ struct mlx5_ifc_flow_table_prop_layout_bits {
u8 reformat_l3_tunnel_to_l2[0x1];
u8 reformat_l2_to_l3_tunnel[0x1];
u8 reformat_and_modify_action[0x1];
u8 reserved_at_15[0xb];
u8 reserved_at_15[0x2];
u8 table_miss_action_domain[0x1];
u8 reserved_at_18[0x8];
u8 reserved_at_20[0x2];
u8 log_max_ft_size[0x6];
u8 log_max_modify_header_context[0x8];
@ -1284,6 +1286,12 @@ enum mlx5_flow_destination_type {
MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM = 0x101,
};
enum mlx5_flow_table_miss_action {
MLX5_FLOW_TABLE_MISS_ACTION_DEF,
MLX5_FLOW_TABLE_MISS_ACTION_FWD,
MLX5_FLOW_TABLE_MISS_ACTION_SWITCH_DOMAIN,
};
struct mlx5_ifc_dest_format_struct_bits {
u8 destination_type[0x8];
u8 destination_id[0x18];