a5e5af7f20
The variable storages of the same name are merged together if compiled with -fcommon. This is the default. This default behaviour allows to declare a variable in a header file and share the variable in every .o binaries thanks to merge at link-time. In the case of dlopen linking of the glue library, the pointer mlx4_glue is referencing the glue functions struct and is set after calling dlopen. If compiling with -fno-common (default in GCC 10), the variables must be declared as extern to avoid multiple re-definitions. In case the glue layer is split in glue library, the variable mlx4_glue needs to have its own storage for the rest of the PMD. Cc: stable@dpdk.org Signed-off-by: Thomas Monjalon <thomas@monjalon.net> Acked-by: Matan Azrad <matan@mellanox.com>
90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright 2018 6WIND S.A.
|
|
* Copyright 2018 Mellanox Technologies, Ltd
|
|
*/
|
|
|
|
#ifndef MLX4_GLUE_H_
|
|
#define MLX4_GLUE_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
/* Verbs headers do not support -pedantic. */
|
|
#ifdef PEDANTIC
|
|
#pragma GCC diagnostic ignored "-Wpedantic"
|
|
#endif
|
|
#include <infiniband/mlx4dv.h>
|
|
#include <infiniband/verbs.h>
|
|
#ifdef PEDANTIC
|
|
#pragma GCC diagnostic error "-Wpedantic"
|
|
#endif
|
|
|
|
#ifndef MLX4_GLUE_VERSION
|
|
#define MLX4_GLUE_VERSION ""
|
|
#endif
|
|
|
|
/* LIB_GLUE_VERSION must be updated every time this structure is modified. */
|
|
struct mlx4_glue {
|
|
const char *version;
|
|
int (*fork_init)(void);
|
|
int (*get_async_event)(struct ibv_context *context,
|
|
struct ibv_async_event *event);
|
|
void (*ack_async_event)(struct ibv_async_event *event);
|
|
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);
|
|
const char *(*get_device_name)(struct ibv_device *device);
|
|
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_port)(struct ibv_context *context, uint8_t port_num,
|
|
struct ibv_port_attr *port_attr);
|
|
const char *(*port_state_str)(enum ibv_port_state port_state);
|
|
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_flow *(*create_flow)(struct ibv_qp *qp,
|
|
struct ibv_flow_attr *flow);
|
|
int (*destroy_flow)(struct ibv_flow *flow_id);
|
|
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_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);
|
|
int (*dv_init_obj)(struct mlx4dv_obj *obj, uint64_t obj_type);
|
|
int (*dv_set_context_attr)(struct ibv_context *context,
|
|
enum mlx4dv_set_ctx_attr_type attr_type,
|
|
void *attr);
|
|
};
|
|
|
|
extern const struct mlx4_glue *mlx4_glue;
|
|
|
|
#endif /* MLX4_GLUE_H_ */
|