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- /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
- /*
- * Copyright (c) 2004, 2011 Intel Corporation. All rights reserved.
- * Copyright (c) 2004 Topspin Corporation. All rights reserved.
- * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
- * Copyright (c) 2019, Mellanox Technologies inc. All rights reserved.
- */
- #ifndef CM_MSGS_H
- #define CM_MSGS_H
- #include <rdma/ibta_vol1_c12.h>
- #include <rdma/ib_mad.h>
- #include <rdma/ib_cm.h>
- /*
- * Parameters to routines below should be in network-byte order, and values
- * are returned in network-byte order.
- */
- #define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */
- static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
- {
- u8 transport_type = IBA_GET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg);
- switch(transport_type) {
- case 0: return IB_QPT_RC;
- case 1: return IB_QPT_UC;
- case 3:
- 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 */
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