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IB/mlx5: Add flow steering support

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Adding flow steering support by creating a flow-table per
priority (if rules exist in the priority). mlx5_ib uses
autogrouping and thus only creates the required destinations.

Also includes adding of these flow steering utilities

1. Parsing verbs flow attributes hardware steering specs.

2. Check if flow is multicast - this is required in order to decide
to which flow table will we add the steering rule.

3. Set outer headers in flow match criteria to zeros.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Maor Gottlieb
2016-01-11 10:26:07 +02:00
committed by David S. Miller
parent b217ea25af
commit 038d2ef875
3 changed files with 517 additions and 1 deletions
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10
include/linux/mlx5/fs.h
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@@ -38,6 +38,16 @@
#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
#define LEFTOVERS_RULE_NUM 2
static inline void build_leftovers_ft_param(int *priority,
int *n_ent,
int *n_grp)
{
*priority = 0; /* Priority of leftovers_prio-0 */
*n_ent = LEFTOVERS_RULE_NUM;
*n_grp = LEFTOVERS_RULE_NUM;
}
enum mlx5_flow_namespace_type {
MLX5_FLOW_NAMESPACE_BYPASS,
MLX5_FLOW_NAMESPACE_KERNEL,