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numam-dpdk/drivers/net/mlx5/mlx5_glue.h
Matan Azrad f15db67df0 net/mlx5: accelerate DV flow counter query 
All the DV counters are cashed in the PMD memory and are contained in
pools which are contained in containers according to the counters
allocation type - batch or single.

Currently, the flow counter query is done synchronously in pool
resolution means that on the user request a FW command is triggered to
read all the counters in the pool.

A new feature of devX to asynchronously read batch of flow counters
allows to accelerate the user query operation.

Using the DPDK host thread, the PMD periodically triggers asynchronous
query in pool resolution for all the counter pools and an interrupt is
triggered by the FW when the values are updated.
In the interrupt handler the pool counter values raw data is replaced
using a double buffer algorithm (very fast).
In the user query, the PMD just returns the last query values from the
PMD cache - no system-calls and FW commands are triggered from the user
control thread on query operation!

More synchronization is added with the host thread:
        Container resize uses double buffer algorithm.
        Pools growing in container uses atomic operation.
        Pool query buffer replace uses a spinlock.
        Pool minimum devX counter ID uses atomic operation.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
2019-07-23 14:31:35 +02:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2018 6WIND S.A.
* Copyright 2018 Mellanox Technologies, Ltd
*/
#ifndef MLX5_GLUE_H_
#define MLX5_GLUE_H_
#include <stddef.h>
#include <stdint.h>
/* Verbs headers do not support -pedantic. */
#ifdef PEDANTIC
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
#include <infiniband/mlx5dv.h>
#include <infiniband/verbs.h>
#ifdef PEDANTIC
#pragma GCC diagnostic error "-Wpedantic"
#endif
#ifndef MLX5_GLUE_VERSION
#define MLX5_GLUE_VERSION ""
#endif
#ifndef HAVE_IBV_DEVICE_COUNTERS_SET_V42
struct ibv_counter_set;
struct ibv_counter_set_data;
struct ibv_counter_set_description;
struct ibv_counter_set_init_attr;
struct ibv_query_counter_set_attr;
#endif
#ifndef HAVE_IBV_DEVICE_COUNTERS_SET_V45
struct ibv_counters;
struct ibv_counters_init_attr;
struct ibv_counter_attach_attr;
#endif
#ifndef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
struct mlx5dv_qp_init_attr;
#endif
#ifndef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
struct mlx5dv_wq_init_attr;
#endif
#ifndef HAVE_IBV_FLOW_DV_SUPPORT
struct mlx5dv_flow_matcher;
struct mlx5dv_flow_matcher_attr;
struct mlx5dv_flow_action_attr;
struct mlx5dv_flow_match_parameters;
struct ibv_flow_action;
enum mlx5dv_flow_action_packet_reformat_type { packet_reformat_type = 0, };
enum mlx5dv_flow_table_type { flow_table_type = 0, };
#endif
#ifndef HAVE_IBV_FLOW_DEVX_COUNTERS
#define MLX5DV_FLOW_ACTION_COUNTERS_DEVX 0
#endif
#ifndef HAVE_IBV_DEVX_OBJ
struct mlx5dv_devx_obj;
struct mlx5dv_devx_umem;
#endif
#ifndef HAVE_IBV_DEVX_ASYNC
struct mlx5dv_devx_cmd_comp;
struct mlx5dv_devx_async_cmd_hdr;
#endif
#ifndef HAVE_MLX5DV_DR
enum mlx5dv_dr_domain_type { unused, };
struct mlx5dv_dr_domain;
#endif
/* LIB_GLUE_VERSION must be updated every time this structure is modified. */
struct mlx5_glue {
const char *version;
int (*fork_init)(void);
struct ibv_pd *(*alloc_pd)(struct ibv_context *context);
int (*dealloc_pd)(struct ibv_pd *pd);
struct ibv_device **(*get_device_list)(int *num_devices);
void (*free_device_list)(struct ibv_device **list);
struct ibv_context *(*open_device)(struct ibv_device *device);
int (*close_device)(struct ibv_context *context);
int (*query_device)(struct ibv_context *context,
struct ibv_device_attr *device_attr);
int (*query_device_ex)(struct ibv_context *context,
const struct ibv_query_device_ex_input *input,
struct ibv_device_attr_ex *attr);
int (*query_rt_values_ex)(struct ibv_context *context,
struct ibv_values_ex *values);
int (*query_port)(struct ibv_context *context, uint8_t port_num,
struct ibv_port_attr *port_attr);
struct ibv_comp_channel *(*create_comp_channel)
(struct ibv_context *context);
int (*destroy_comp_channel)(struct ibv_comp_channel *channel);
struct ibv_cq *(*create_cq)(struct ibv_context *context, int cqe,
void *cq_context,
struct ibv_comp_channel *channel,
int comp_vector);
int (*destroy_cq)(struct ibv_cq *cq);
int (*get_cq_event)(struct ibv_comp_channel *channel,
struct ibv_cq **cq, void **cq_context);
void (*ack_cq_events)(struct ibv_cq *cq, unsigned int nevents);
struct ibv_rwq_ind_table *(*create_rwq_ind_table)
(struct ibv_context *context,
struct ibv_rwq_ind_table_init_attr *init_attr);
int (*destroy_rwq_ind_table)(struct ibv_rwq_ind_table *rwq_ind_table);
struct ibv_wq *(*create_wq)(struct ibv_context *context,
struct ibv_wq_init_attr *wq_init_attr);
int (*destroy_wq)(struct ibv_wq *wq);
int (*modify_wq)(struct ibv_wq *wq, struct ibv_wq_attr *wq_attr);
struct ibv_flow *(*create_flow)(struct ibv_qp *qp,
struct ibv_flow_attr *flow);
int (*destroy_flow)(struct ibv_flow *flow_id);
int (*destroy_flow_action)(void *action);
struct ibv_qp *(*create_qp)(struct ibv_pd *pd,
struct ibv_qp_init_attr *qp_init_attr);
struct ibv_qp *(*create_qp_ex)
(struct ibv_context *context,
struct ibv_qp_init_attr_ex *qp_init_attr_ex);
int (*destroy_qp)(struct ibv_qp *qp);
int (*modify_qp)(struct ibv_qp *qp, struct ibv_qp_attr *attr,
int attr_mask);
struct ibv_mr *(*reg_mr)(struct ibv_pd *pd, void *addr,
size_t length, int access);
int (*dereg_mr)(struct ibv_mr *mr);
struct ibv_counter_set *(*create_counter_set)
(struct ibv_context *context,
struct ibv_counter_set_init_attr *init_attr);
int (*destroy_counter_set)(struct ibv_counter_set *cs);
int (*describe_counter_set)
(struct ibv_context *context,
uint16_t counter_set_id,
struct ibv_counter_set_description *cs_desc);
int (*query_counter_set)(struct ibv_query_counter_set_attr *query_attr,
struct ibv_counter_set_data *cs_data);
struct ibv_counters *(*create_counters)
(struct ibv_context *context,
struct ibv_counters_init_attr *init_attr);
int (*destroy_counters)(struct ibv_counters *counters);
int (*attach_counters)(struct ibv_counters *counters,
struct ibv_counter_attach_attr *attr,
struct ibv_flow *flow);
int (*query_counters)(struct ibv_counters *counters,
uint64_t *counters_value,
uint32_t ncounters,
uint32_t flags);
void (*ack_async_event)(struct ibv_async_event *event);
int (*get_async_event)(struct ibv_context *context,
struct ibv_async_event *event);
const char *(*port_state_str)(enum ibv_port_state port_state);
struct ibv_cq *(*cq_ex_to_cq)(struct ibv_cq_ex *cq);
void *(*dr_create_flow_action_dest_flow_tbl)(void *tbl);
void *(*dr_create_flow_action_dest_vport)(void *domain, uint32_t vport);
void *(*dr_create_flow_action_drop)();
void *(*dr_create_flow_tbl)(void *domain, uint32_t level);
int (*dr_destroy_flow_tbl)(void *tbl);
void *(*dr_create_domain)(struct ibv_context *ctx,
enum mlx5dv_dr_domain_type domain);
int (*dr_destroy_domain)(void *domain);
struct ibv_cq_ex *(*dv_create_cq)
(struct ibv_context *context,
struct ibv_cq_init_attr_ex *cq_attr,
struct mlx5dv_cq_init_attr *mlx5_cq_attr);
struct ibv_wq *(*dv_create_wq)
(struct ibv_context *context,
struct ibv_wq_init_attr *wq_attr,
struct mlx5dv_wq_init_attr *mlx5_wq_attr);
int (*dv_query_device)(struct ibv_context *ctx_in,
struct mlx5dv_context *attrs_out);
int (*dv_set_context_attr)(struct ibv_context *ibv_ctx,
enum mlx5dv_set_ctx_attr_type type,
void *attr);
int (*dv_init_obj)(struct mlx5dv_obj *obj, uint64_t obj_type);
struct ibv_qp *(*dv_create_qp)
(struct ibv_context *context,
struct ibv_qp_init_attr_ex *qp_init_attr_ex,
struct mlx5dv_qp_init_attr *dv_qp_init_attr);
void *(*dv_create_flow_matcher)
(struct ibv_context *context,
struct mlx5dv_flow_matcher_attr *matcher_attr,
void *tbl);
void *(*dv_create_flow)(void *matcher, void *match_value,
size_t num_actions, void *actions[]);
void *(*dv_create_flow_action_counter)(void *obj, uint32_t offset);
void *(*dv_create_flow_action_dest_ibv_qp)(void *qp);
void *(*dv_create_flow_action_modify_header)
(struct ibv_context *ctx, enum mlx5dv_flow_table_type ft_type,
void *domain, uint64_t flags, size_t actions_sz,
uint64_t actions[]);
void *(*dv_create_flow_action_packet_reformat)
(struct ibv_context *ctx,
enum mlx5dv_flow_action_packet_reformat_type reformat_type,
enum mlx5dv_flow_table_type ft_type,
struct mlx5dv_dr_domain *domain,
uint32_t flags, size_t data_sz, void *data);
void *(*dv_create_flow_action_tag)(uint32_t tag);
int (*dv_destroy_flow)(void *flow);
int (*dv_destroy_flow_matcher)(void *matcher);
struct ibv_context *(*dv_open_device)(struct ibv_device *device);
struct mlx5dv_devx_obj *(*devx_obj_create)
(struct ibv_context *ctx,
const void *in, size_t inlen,
void *out, size_t outlen);
int (*devx_obj_destroy)(struct mlx5dv_devx_obj *obj);
int (*devx_obj_query)(struct mlx5dv_devx_obj *obj,
const void *in, size_t inlen,
void *out, size_t outlen);
int (*devx_obj_modify)(struct mlx5dv_devx_obj *obj,
const void *in, size_t inlen,
void *out, size_t outlen);
int (*devx_general_cmd)(struct ibv_context *context,
const void *in, size_t inlen,
void *out, size_t outlen);
struct mlx5dv_devx_cmd_comp *(*devx_create_cmd_comp)
(struct ibv_context *context);
void (*devx_destroy_cmd_comp)(struct mlx5dv_devx_cmd_comp *cmd_comp);
int (*devx_obj_query_async)(struct mlx5dv_devx_obj *obj,
const void *in, size_t inlen,
size_t outlen, uint64_t wr_id,
struct mlx5dv_devx_cmd_comp *cmd_comp);
int (*devx_get_async_cmd_comp)(struct mlx5dv_devx_cmd_comp *cmd_comp,
struct mlx5dv_devx_async_cmd_hdr *resp,
size_t cmd_resp_len);
struct mlx5dv_devx_umem *(*devx_umem_reg)(struct ibv_context *context,
void *addr, size_t size,
uint32_t access);
int (*devx_umem_dereg)(struct mlx5dv_devx_umem *dv_devx_umem);
};
const struct mlx5_glue *mlx5_glue;
#endif /* MLX5_GLUE_H_ */
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