// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
*/
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_verbs.h>
#include <rdma/uverbs_types.h>
#include <rdma/uverbs_ioctl.h>
#include <rdma/mlx5_user_ioctl_cmds.h>
#include <rdma/ib_umem.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/fs.h>
#include "mlx5_ib.h"
#define UVERBS_MODULE_NAME mlx5_ib
#include <rdma/uverbs_named_ioctl.h>
#define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
struct devx_obj {
struct mlx5_core_dev *mdev;
u64 obj_id;
u32 dinlen; /* destroy inbox length */
u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
};
struct devx_umem {
struct mlx5_core_dev *mdev;
struct ib_umem *umem;
u32 page_offset;
int page_shift;
int ncont;
u32 dinlen;
u32 dinbox[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)];
};
struct devx_umem_reg_cmd {
void *in;
u32 inlen;
u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
};
static struct mlx5_ib_ucontext *devx_ufile2uctx(struct ib_uverbs_file *file)
{
return to_mucontext(ib_uverbs_get_ucontext(file));
}
int mlx5_ib_devx_create(struct mlx5_ib_dev *dev)
{
u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {0};
u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
u64 general_obj_types;
void *hdr;
int err;
u16 uid;
hdr = MLX5_ADDR_OF(create_uctx_in, in, hdr);
general_obj_types = MLX5_CAP_GEN_64(dev->mdev, general_obj_types);
if (!(general_obj_types & MLX5_GENERAL_OBJ_TYPES_CAP_UCTX) ||
!(general_obj_types & MLX5_GENERAL_OBJ_TYPES_CAP_UMEM))
return -EINVAL;
MLX5_SET(general_obj_in_cmd_hdr, hdr, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
MLX5_SET(general_obj_in_cmd_hdr, hdr, obj_type, MLX5_OBJ_TYPE_UCTX);
err = mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
if (err)
return err;
uid =