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common/mlx5: add glue for sample action

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The new DR sample action is supported since OFED version
5.1.2 or rdma-core version v32.

MLX5 PMD adds the rdma-core command in glue to create this action.

Sample action is used for creating the sample object to implement
the sampling/mirroring function.

Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
This commit is contained in:
Jiawei Wang 2020-10-13 17:11:43 +03:00 committed by Ferruh Yigit
parent 9bb607af36
commit a3def85479
4 changed files with 40 additions and 0 deletions
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2
drivers/common/mlx5/linux/meson.build
View File

@ -172,6 +172,8 @@ has_sym_args = [
'RDMA_NLDEV_ATTR_NDEV_INDEX' ],
[ 'HAVE_MLX5_DR_FLOW_DUMP', 'infiniband/mlx5dv.h',
'mlx5dv_dump_dr_domain'],
[ 'HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE', 'infiniband/mlx5dv.h',
'mlx5dv_dr_action_create_flow_sampler'],
[ 'HAVE_MLX5DV_DR_MEM_RECLAIM', 'infiniband/mlx5dv.h',
'mlx5dv_dr_domain_set_reclaim_device_memory'],
[ 'HAVE_DEVLINK', 'linux/devlink.h', 'DEVLINK_GENL_NAME' ],

15
drivers/common/mlx5/linux/mlx5_glue.c
View File

@ -1063,6 +1063,19 @@ mlx5_glue_dr_dump_domain(FILE *file, void *domain)
#endif
}
static void *
mlx5_glue_dr_create_flow_action_sampler(
struct mlx5dv_dr_flow_sampler_attr *attr)
{
#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE
return mlx5dv_dr_action_create_flow_sampler(attr);
#else
(void)attr;
errno = ENOTSUP;
return NULL;
#endif
}
static int
mlx5_glue_devx_query_eqn(struct ibv_context *ctx, uint32_t cpus,
uint32_t *eqn)
@ -1339,6 +1352,8 @@ const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue) {
.devx_port_query = mlx5_glue_devx_port_query,
.dr_dump_domain = mlx5_glue_dr_dump_domain,
.dr_reclaim_domain_memory = mlx5_glue_dr_reclaim_domain_memory,
.dr_create_flow_action_sampler =
mlx5_glue_dr_create_flow_action_sampler,
.devx_query_eqn = mlx5_glue_devx_query_eqn,
.devx_create_event_channel = mlx5_glue_devx_create_event_channel,
.devx_destroy_event_channel = mlx5_glue_devx_destroy_event_channel,

13
drivers/common/mlx5/linux/mlx5_glue.h
View File

@ -77,6 +77,7 @@ struct mlx5dv_devx_async_cmd_hdr;
#ifndef HAVE_MLX5DV_DR
enum mlx5dv_dr_domain_type { unused, };
struct mlx5dv_dr_domain;
struct mlx5dv_dr_action;
#endif
#ifndef HAVE_MLX5DV_DR_DEVX_PORT
@ -87,6 +88,16 @@ struct mlx5dv_devx_port;
struct mlx5dv_dr_flow_meter_attr;
#endif
#ifndef HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE
struct mlx5dv_dr_flow_sampler_attr {
uint32_t sample_ratio;
void *default_next_table;
size_t num_sample_actions;
struct mlx5dv_dr_action **sample_actions;
uint64_t action;
};
#endif
#ifndef HAVE_IBV_DEVX_EVENT
struct mlx5dv_devx_event_channel { int fd; };
struct mlx5dv_devx_async_event_hdr;
@ -309,6 +320,8 @@ struct mlx5_glue {
const void *pp_context,
uint32_t flags);
void (*dv_free_pp)(struct mlx5dv_pp *pp);
void *(*dr_create_flow_action_sampler)
(struct mlx5dv_dr_flow_sampler_attr *attr);
};
extern const struct mlx5_glue *mlx5_glue;

10
drivers/common/mlx5/mlx5_prm.h
View File

@ -1479,6 +1479,16 @@ union mlx5_ifc_hca_cap_union_bits {
u8 reserved_at_0[0x8000];
};
struct mlx5_ifc_set_action_in_bits {
u8 action_type[0x4];
u8 field[0xc];
u8 reserved_at_10[0x3];
u8 offset[0x5];
u8 reserved_at_18[0x3];
u8 length[0x5];
u8 data[0x20];
};
struct mlx5_ifc_query_hca_cap_out_bits {
u8 status[0x8];
u8 reserved_at_8[0x18];