Leon Romanovsky | 24f5214 | 2019-10-20 10:15:56 +0300 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 2 | /* |
Sean Hefty | ef70044 | 2011-08-02 11:08:22 -0700 | [diff] [blame] | 3 | * Copyright (c) 2004, 2011 Intel Corporation. All rights reserved. |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 4 | * Copyright (c) 2004 Topspin Corporation. All rights reserved. |
| 5 | * Copyright (c) 2004 Voltaire Corporation. All rights reserved. |
Leon Romanovsky | 24f5214 | 2019-10-20 10:15:56 +0300 | [diff] [blame] | 6 | * Copyright (c) 2019, Mellanox Technologies inc. All rights reserved. |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 7 | */ |
Leon Romanovsky | a916051 | 2019-10-20 10:15:55 +0300 | [diff] [blame] | 8 | #ifndef CM_MSGS_H |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 9 | #define CM_MSGS_H |
| 10 | |
Leon Romanovsky | d05d4ac | 2020-01-16 13:00:32 -0400 | [diff] [blame] | 11 | #include <rdma/ibta_vol1_c12.h> |
Roland Dreier | a4d61e8 | 2005-08-25 13:40:04 -0700 | [diff] [blame] | 12 | #include <rdma/ib_mad.h> |
Sean Hefty | 5d861be | 2007-06-28 19:16:51 -0700 | [diff] [blame] | 13 | #include <rdma/ib_cm.h> |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 14 | |
| 15 | /* |
| 16 | * Parameters to routines below should be in network-byte order, and values |
| 17 | * are returned in network-byte order. |
| 18 | */ |
| 19 | |
| 20 | #define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */ |
| 21 | |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 22 | static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg) |
| 23 | { |
Jason Gunthorpe | b6bbee6 | 2020-01-16 13:00:33 -0400 | [diff] [blame] | 24 | u8 transport_type = IBA_GET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg); |
Wenpeng Liang | 9516b8f | 2021-04-07 16:15:49 +0800 | [diff] [blame] | 25 | switch (transport_type) { |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 26 | case 0: return IB_QPT_RC; |
| 27 | case 1: return IB_QPT_UC; |
Sean Hefty | d26a360 | 2011-05-13 10:46:20 -0700 | [diff] [blame] | 28 | case 3: |
Jason Gunthorpe | b6bbee6 | 2020-01-16 13:00:33 -0400 | [diff] [blame] | 29 | switch (IBA_GET(CM_REQ_EXTENDED_TRANSPORT_TYPE, req_msg)) { |
Sean Hefty | d26a360 | 2011-05-13 10:46:20 -0700 | [diff] [blame] | 30 | case 1: return IB_QPT_XRC_TGT; |
| 31 | default: return 0; |
| 32 | } |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 33 | default: return 0; |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg, |
| 38 | enum ib_qp_type qp_type) |
| 39 | { |
Wenpeng Liang | 9516b8f | 2021-04-07 16:15:49 +0800 | [diff] [blame] | 40 | switch (qp_type) { |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 41 | case IB_QPT_UC: |
Jason Gunthorpe | b6bbee6 | 2020-01-16 13:00:33 -0400 | [diff] [blame] | 42 | IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 1); |
Roland Dreier | 3910f44 | 2005-10-20 12:29:36 -0700 | [diff] [blame] | 43 | break; |
Sean Hefty | d26a360 | 2011-05-13 10:46:20 -0700 | [diff] [blame] | 44 | case IB_QPT_XRC_INI: |
Jason Gunthorpe | b6bbee6 | 2020-01-16 13:00:33 -0400 | [diff] [blame] | 45 | IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 3); |
| 46 | IBA_SET(CM_REQ_EXTENDED_TRANSPORT_TYPE, req_msg, 1); |
Sean Hefty | d26a360 | 2011-05-13 10:46:20 -0700 | [diff] [blame] | 47 | break; |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 48 | default: |
Jason Gunthorpe | b6bbee6 | 2020-01-16 13:00:33 -0400 | [diff] [blame] | 49 | IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 0); |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 50 | } |
| 51 | } |
| 52 | |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 53 | /* Message REJected or MRAed */ |
| 54 | enum cm_msg_response { |
| 55 | CM_MSG_RESPONSE_REQ = 0x0, |
| 56 | CM_MSG_RESPONSE_REP = 0x1, |
| 57 | CM_MSG_RESPONSE_OTHER = 0x2 |
| 58 | }; |
| 59 | |
Sean Hefty | ef70044 | 2011-08-02 11:08:22 -0700 | [diff] [blame] | 60 | static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type) |
| 61 | { |
| 62 | return (qp_type == IB_QPT_XRC_INI) ? |
Jason Gunthorpe | 01adb7f | 2020-01-16 13:00:34 -0400 | [diff] [blame] | 63 | cpu_to_be32(IBA_GET(CM_REP_LOCAL_EE_CONTEXT_NUMBER, |
| 64 | rep_msg)) : |
| 65 | cpu_to_be32(IBA_GET(CM_REP_LOCAL_QPN, rep_msg)); |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Hal Rosenstock | a977049 | 2005-07-27 11:45:40 -0700 | [diff] [blame] | 68 | #endif /* CM_MSGS_H */ |