69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/*
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* Copyright (c) 2004, 2011 Intel Corporation. All rights reserved.
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* Copyright (c) 2004 Topspin Corporation. All rights reserved.
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* Copyright (c) 2004 Voltaire Corporation. All rights reserved.
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* Copyright (c) 2019, Mellanox Technologies inc. All rights reserved.
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*/
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#ifndef CM_MSGS_H
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#define CM_MSGS_H
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#include <rdma/ibta_vol1_c12.h>
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#include <rdma/ib_mad.h>
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#include <rdma/ib_cm.h>
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/*
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* Parameters to routines below should be in network-byte order, and values
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* are returned in network-byte order.
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*/
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#define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */
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static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
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{
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u8 transport_type = IBA_GET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg);
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switch (transport_type) {
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case 0: return IB_QPT_RC;
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case 1: return IB_QPT_UC;
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case 3:
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switch (IBA_GET(CM_REQ_EXTENDED_TRANSPORT_TYPE, req_msg)) {
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case 1: return IB_QPT_XRC_TGT;
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default: return 0;
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}
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default: return 0;
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}
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}
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static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
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enum ib_qp_type qp_type)
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{
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switch (qp_type) {
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case IB_QPT_UC:
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IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 1);
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break;
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case IB_QPT_XRC_INI:
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IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 3);
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IBA_SET(CM_REQ_EXTENDED_TRANSPORT_TYPE, req_msg, 1);
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break;
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default:
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IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 0);
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}
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}
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/* Message REJected or MRAed */
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enum cm_msg_response {
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CM_MSG_RESPONSE_REQ = 0x0,
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CM_MSG_RESPONSE_REP = 0x1,
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CM_MSG_RESPONSE_OTHER = 0x2
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};
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static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type)
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{
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return (qp_type == IB_QPT_XRC_INI) ?
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cpu_to_be32(IBA_GET(CM_REP_LOCAL_EE_CONTEXT_NUMBER,
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rep_msg)) :
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cpu_to_be32(IBA_GET(CM_REP_LOCAL_QPN, rep_msg));
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}
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#endif /* CM_MSGS_H */
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