include/rdma/ib_pack.h

Source file repositories/reference/linux-study-clean/include/rdma/ib_pack.h

File Facts

System
Linux kernel
Corpus path
include/rdma/ib_pack.h
Extension
.h
Size
7998 bytes
Lines
287
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ib_field {
	size_t struct_offset_bytes;
	size_t struct_size_bytes;
	int    offset_words;
	int    offset_bits;
	int    size_bits;
	char  *field_name;
};

#define RESERVED \
	.field_name          = "reserved"

/*
 * This macro cleans up the definitions of constants for BTH opcodes.
 * It is used to define constants such as IB_OPCODE_UD_SEND_ONLY,
 * which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives
 * the correct value.
 *
 * In short, user code should use the constants defined using the
 * macro rather than worrying about adding together other constants.
*/
#define IB_OPCODE(transport, op) \
	IB_OPCODE_ ## transport ## _ ## op = \
		IB_OPCODE_ ## transport + IB_OPCODE_ ## op

enum {
	/* transport types -- just used to define real constants */
	IB_OPCODE_RC                                = 0x00,
	IB_OPCODE_UC                                = 0x20,
	IB_OPCODE_RD                                = 0x40,
	IB_OPCODE_UD                                = 0x60,
	/* per IBTA 1.3 vol 1 Table 38, A10.3.2 */
	IB_OPCODE_CNP                               = 0x80,
	/* Manufacturer specific */
	IB_OPCODE_MSP                               = 0xe0,

	/* operations -- just used to define real constants */
	IB_OPCODE_SEND_FIRST                        = 0x00,
	IB_OPCODE_SEND_MIDDLE                       = 0x01,
	IB_OPCODE_SEND_LAST                         = 0x02,
	IB_OPCODE_SEND_LAST_WITH_IMMEDIATE          = 0x03,
	IB_OPCODE_SEND_ONLY                         = 0x04,
	IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE          = 0x05,
	IB_OPCODE_RDMA_WRITE_FIRST                  = 0x06,
	IB_OPCODE_RDMA_WRITE_MIDDLE                 = 0x07,
	IB_OPCODE_RDMA_WRITE_LAST                   = 0x08,
	IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE    = 0x09,
	IB_OPCODE_RDMA_WRITE_ONLY                   = 0x0a,
	IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE    = 0x0b,
	IB_OPCODE_RDMA_READ_REQUEST                 = 0x0c,
	IB_OPCODE_RDMA_READ_RESPONSE_FIRST          = 0x0d,
	IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE         = 0x0e,
	IB_OPCODE_RDMA_READ_RESPONSE_LAST           = 0x0f,
	IB_OPCODE_RDMA_READ_RESPONSE_ONLY           = 0x10,
	IB_OPCODE_ACKNOWLEDGE                       = 0x11,
	IB_OPCODE_ATOMIC_ACKNOWLEDGE                = 0x12,
	IB_OPCODE_COMPARE_SWAP                      = 0x13,
	IB_OPCODE_FETCH_ADD                         = 0x14,
	/* opcode 0x15 is reserved */
	IB_OPCODE_SEND_LAST_WITH_INVALIDATE         = 0x16,
	IB_OPCODE_SEND_ONLY_WITH_INVALIDATE         = 0x17,
	IB_OPCODE_FLUSH                             = 0x1C,
	IB_OPCODE_ATOMIC_WRITE                      = 0x1D,

	/* real constants follow -- see comment about above IB_OPCODE()
	   macro for more details */

	/* RC */
	IB_OPCODE(RC, SEND_FIRST),
	IB_OPCODE(RC, SEND_MIDDLE),
	IB_OPCODE(RC, SEND_LAST),
	IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE),
	IB_OPCODE(RC, SEND_ONLY),
	IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE),
	IB_OPCODE(RC, RDMA_WRITE_FIRST),
	IB_OPCODE(RC, RDMA_WRITE_MIDDLE),
	IB_OPCODE(RC, RDMA_WRITE_LAST),
	IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
	IB_OPCODE(RC, RDMA_WRITE_ONLY),
	IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
	IB_OPCODE(RC, RDMA_READ_REQUEST),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY),
	IB_OPCODE(RC, ACKNOWLEDGE),
	IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE),
	IB_OPCODE(RC, COMPARE_SWAP),
	IB_OPCODE(RC, FETCH_ADD),
	IB_OPCODE(RC, SEND_LAST_WITH_INVALIDATE),

Annotation

Implementation Notes