include/linux/mlx5/cq.h
Source file repositories/reference/linux-study-clean/include/linux/mlx5/cq.h
File Facts
- System
- Linux kernel
- Corpus path
include/linux/mlx5/cq.h- Extension
.h- Size
- 5992 bytes
- Lines
- 209
- Domain
- Core OS
- Bucket
- Core Kernel Interface
- Inferred role
- Core OS: implementation source
- Status
- source implementation candidate
Why This File Exists
Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/mlx5/driver.hlinux/refcount.h
Detected Declarations
struct mlx5_core_cqstruct mlx5_cq_modify_paramsfunction cqe_sz_to_mlx_szfunction mlx5_cq_set_cifunction mlx5_cq_armfunction mlx5_cq_holdfunction mlx5_cq_putfunction mlx5_dump_err_cqe
Annotated Snippet
struct mlx5_core_cq {
u32 cqn;
int cqe_sz;
__be32 *set_ci_db;
__be32 *arm_db;
refcount_t refcount;
struct completion free;
unsigned vector;
unsigned int irqn;
void (*comp)(struct mlx5_core_cq *cq, struct mlx5_eqe *eqe);
void (*event) (struct mlx5_core_cq *, enum mlx5_event);
u32 cons_index;
unsigned arm_sn;
struct mlx5_rsc_debug *dbg;
int pid;
struct {
struct list_head list;
void (*comp)(struct mlx5_core_cq *cq, struct mlx5_eqe *eqe);
void *priv;
} tasklet_ctx;
int reset_notify_added;
struct list_head reset_notify;
struct mlx5_eq_comp *eq;
u16 uid;
};
enum {
MLX5_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01,
MLX5_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02,
MLX5_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04,
MLX5_CQE_SYNDROME_WR_FLUSH_ERR = 0x05,
MLX5_CQE_SYNDROME_MW_BIND_ERR = 0x06,
MLX5_CQE_SYNDROME_BAD_RESP_ERR = 0x10,
MLX5_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11,
MLX5_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12,
MLX5_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13,
MLX5_CQE_SYNDROME_REMOTE_OP_ERR = 0x14,
MLX5_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15,
MLX5_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16,
MLX5_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22,
};
enum {
MLX5_CQE_OWNER_MASK = 1,
MLX5_CQE_REQ = 0,
MLX5_CQE_RESP_WR_IMM = 1,
MLX5_CQE_RESP_SEND = 2,
MLX5_CQE_RESP_SEND_IMM = 3,
MLX5_CQE_RESP_SEND_INV = 4,
MLX5_CQE_RESIZE_CQ = 5,
MLX5_CQE_SIG_ERR = 12,
MLX5_CQE_REQ_ERR = 13,
MLX5_CQE_RESP_ERR = 14,
MLX5_CQE_INVALID = 15,
};
enum {
MLX5_CQ_MODIFY_PERIOD = BIT(0),
MLX5_CQ_MODIFY_COUNT = BIT(1),
MLX5_CQ_MODIFY_OVERRUN = BIT(2),
MLX5_CQ_MODIFY_PERIOD_MODE = BIT(4),
};
enum {
MLX5_CQ_OPMOD_RESIZE = 1,
MLX5_MODIFY_CQ_MASK_LOG_SIZE = 1 << 0,
MLX5_MODIFY_CQ_MASK_PG_OFFSET = 1 << 1,
MLX5_MODIFY_CQ_MASK_PG_SIZE = 1 << 2,
};
struct mlx5_cq_modify_params {
int type;
union {
struct {
u32 page_offset;
u8 log_cq_size;
} resize;
struct {
} moder;
struct {
} mapping;
} params;
};
enum {
CQE_STRIDE_64 = 0,
CQE_STRIDE_128 = 1,
Annotation
- Immediate include surface: `linux/mlx5/driver.h`, `linux/refcount.h`.
- Detected declarations: `struct mlx5_core_cq`, `struct mlx5_cq_modify_params`, `function cqe_sz_to_mlx_sz`, `function mlx5_cq_set_ci`, `function mlx5_cq_arm`, `function mlx5_cq_hold`, `function mlx5_cq_put`, `function mlx5_dump_err_cqe`.
- Atlas domain: Core OS / Core Kernel Interface.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.