xref: /freebsd/contrib/ofed/libibmad/vendor.c (revision f3c5273d315a64826d2149ac453ff8c4583ddbe8)
1 /*
2  * Copyright (c) 2004-2009 Voltaire Inc.  All rights reserved.
3  * Copyright (c) 2011 Mellanox Technologies LTD.  All rights reserved.
4  *
5  * This software is available to you under a choice of one of two
6  * licenses.  You may choose to be licensed under the terms of the GNU
7  * General Public License (GPL) Version 2, available from the file
8  * COPYING in the main directory of this source tree, or the
9  * OpenIB.org BSD license below:
10  *
11  *     Redistribution and use in source and binary forms, with or
12  *     without modification, are permitted provided that the following
13  *     conditions are met:
14  *
15  *      - Redistributions of source code must retain the above
16  *        copyright notice, this list of conditions and the following
17  *        disclaimer.
18  *
19  *      - Redistributions in binary form must reproduce the above
20  *        copyright notice, this list of conditions and the following
21  *        disclaimer in the documentation and/or other materials
22  *        provided with the distribution.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31  * SOFTWARE.
32  *
33  */
34 
35 #if HAVE_CONFIG_H
36 #  include <config.h>
37 #endif				/* HAVE_CONFIG_H */
38 
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <errno.h>
43 
44 #include <infiniband/umad.h>
45 #include <infiniband/mad.h>
46 #include "mad_internal.h"
47 
48 #undef DEBUG
49 #define DEBUG 	if (ibdebug)	IBWARN
50 
51 static inline int response_expected(int method)
52 {
53 	return method == IB_MAD_METHOD_GET ||
54 	    method == IB_MAD_METHOD_SET || method == IB_MAD_METHOD_TRAP;
55 }
56 
57 uint8_t *ib_vendor_call(void *data, ib_portid_t * portid,
58 			ib_vendor_call_t * call)
59 {
60 	return ib_vendor_call_via(data, portid, call, ibmp);
61 }
62 
63 uint8_t *ib_vendor_call_via(void *data, ib_portid_t * portid,
64 			    ib_vendor_call_t * call,
65 			    struct ibmad_port * srcport)
66 {
67 	ib_rpc_v1_t rpc = { 0 };
68 	ib_rpc_t *rpcold = (ib_rpc_t *)(void *)&rpc;
69 	int range1 = 0, resp_expected;
70 	void *p_ret;
71 
72 	DEBUG("route %s data %p", portid2str(portid), data);
73 	if (portid->lid <= 0)
74 		return NULL;	/* no direct SMI */
75 
76 	if (!(range1 = mad_is_vendor_range1(call->mgmt_class)) &&
77 	    !(mad_is_vendor_range2(call->mgmt_class)))
78 		return NULL;
79 
80 	resp_expected = response_expected(call->method);
81 
82 	rpc.mgtclass = call->mgmt_class | IB_MAD_RPC_VERSION1;
83 
84 	rpc.method = call->method;
85 	rpc.attr.id = call->attrid;
86 	rpc.attr.mod = call->mod;
87 	rpc.timeout = resp_expected ? call->timeout : 0;
88 	rpc.datasz =
89 	    range1 ? IB_VENDOR_RANGE1_DATA_SIZE : IB_VENDOR_RANGE2_DATA_SIZE;
90 	rpc.dataoffs =
91 	    range1 ? IB_VENDOR_RANGE1_DATA_OFFS : IB_VENDOR_RANGE2_DATA_OFFS;
92 
93 	if (!range1)
94 		rpc.oui = call->oui;
95 
96 	DEBUG
97 	    ("class 0x%x method 0x%x attr 0x%x mod 0x%x datasz %d off %d res_ex %d",
98 	     rpc.mgtclass, rpc.method, rpc.attr.id, rpc.attr.mod, rpc.datasz,
99 	     rpc.dataoffs, resp_expected);
100 
101 	portid->qp = 1;
102 	if (!portid->qkey)
103 		portid->qkey = IB_DEFAULT_QP1_QKEY;
104 
105 	if (resp_expected) {
106 		p_ret = mad_rpc_rmpp(srcport, rpcold, portid, 0, data);	/* FIXME: no RMPP for now */
107 		errno = rpc.error;
108 		return p_ret;
109 	}
110 
111 	return mad_send_via(rpcold, portid, 0, data, srcport) < 0 ? 0 : data;	/* FIXME: no RMPP for now */
112 }
113