diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index d4b227126265..a6a57de278b4 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -57,6 +57,8 @@ pr_warn("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \ #define field_avail(type, fld, sz) (offsetof(type, fld) + \ sizeof(((type *)0)->fld) <= (sz)) +#define MLX5_IB_DEFAULT_UIDX 0xffffff +#define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index) enum { MLX5_IB_MMAP_CMD_SHIFT = 8, @@ -94,6 +96,11 @@ enum { MLX5_CROSS_CHANNEL_UUAR = 0, }; +enum { + MLX5_CQE_VERSION_V0, + MLX5_CQE_VERSION_V1, +}; + struct mlx5_ib_ucontext { struct ib_ucontext ibucontext; struct list_head db_page_list; @@ -102,6 +109,7 @@ struct mlx5_ib_ucontext { */ struct mutex db_page_mutex; struct mlx5_uuar_info uuari; + u8 cqe_version; }; static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) @@ -694,4 +702,19 @@ static inline u32 check_cq_create_flags(u32 flags) */ return (flags & ~IB_CQ_FLAGS_IGNORE_OVERRUN); } + +static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx, + u32 *user_index) +{ + if (cqe_version) { + if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) || + (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK)) + return -EINVAL; + *user_index = cmd_uidx; + } else { + *user_index = MLX5_IB_DEFAULT_UIDX; + } + + return 0; +} #endif /* MLX5_IB_H */ |