drivers/infiniband/core/cm_msgs.h

Source file repositories/reference/linux-study-clean/drivers/infiniband/core/cm_msgs.h

File Facts

System
Linux kernel
Corpus path
drivers/infiniband/core/cm_msgs.h
Extension
.h
Size
1870 bytes
Lines
69
Domain
Driver Families
Bucket
drivers/infiniband
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (IBA_GET(CM_REQ_EXTENDED_TRANSPORT_TYPE, req_msg)) {
		case 1: return IB_QPT_XRC_TGT;
		default: return 0;
		}
	default: return 0;
	}
}

static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
				      enum ib_qp_type qp_type)
{
	switch (qp_type) {
	case IB_QPT_UC:
		IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 1);
		break;
	case IB_QPT_XRC_INI:
		IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 3);
		IBA_SET(CM_REQ_EXTENDED_TRANSPORT_TYPE, req_msg, 1);
		break;
	default:
		IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 0);
	}
}

/* Message REJected or MRAed */
enum cm_msg_response {
	CM_MSG_RESPONSE_REQ = 0x0,
	CM_MSG_RESPONSE_REP = 0x1,
	CM_MSG_RESPONSE_OTHER = 0x2
};

static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type)
{
	return (qp_type == IB_QPT_XRC_INI) ?
		       cpu_to_be32(IBA_GET(CM_REP_LOCAL_EE_CONTEXT_NUMBER,
					   rep_msg)) :
		       cpu_to_be32(IBA_GET(CM_REP_LOCAL_QPN, rep_msg));
}

#endif /* CM_MSGS_H */

Annotation

Implementation Notes