1 /*
2 * Copyright (c) 2004,2005 Voltaire Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 */
33
34 #if HAVE_CONFIG_H
35 # include <config.h>
36 #endif /* HAVE_CONFIG_H */
37
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <unistd.h>
41 #include <pthread.h>
42 #include <sys/time.h>
43 #include <string.h>
44 #include <netinet/in.h>
45
46 #include <infiniband/common.h>
47 #include <infiniband/umad.h>
48 #include <mad.h>
49
50 #undef DEBUG
51 #define DEBUG if (ibdebug) IBWARN
52
53 int
mad_send(ib_rpc_t * rpc,ib_portid_t * dport,ib_rmpp_hdr_t * rmpp,void * data)54 mad_send(ib_rpc_t *rpc, ib_portid_t *dport, ib_rmpp_hdr_t *rmpp, void *data)
55 {
56 uint8_t pktbuf[1024];
57 void *umad = pktbuf;
58
59 memset(pktbuf, 0, umad_size());
60
61 DEBUG("rmpp %p data %p", rmpp, data);
62
63 if (mad_build_pkt(umad, rpc, dport, rmpp, data) < 0)
64 return 0;
65
66 if (ibdebug) {
67 IBWARN("data offs %d sz %d", rpc->dataoffs, rpc->datasz);
68 xdump(stderr, "mad send data\n",
69 (char *)umad_get_mad(umad) + rpc->dataoffs, rpc->datasz);
70 }
71
72 if (umad_send(madrpc_portid(), mad_class_agent(rpc->mgtclass),
73 umad, IB_MAD_SIZE, rpc->timeout, 0) < 0) {
74 IBWARN("send failed; %m");
75 return -1;
76 }
77
78 return 0;
79 }
80
81 int
mad_respond(void * umad,ib_portid_t * portid,uint32_t rstatus)82 mad_respond(void *umad, ib_portid_t *portid, uint32_t rstatus)
83 {
84 uint8_t *mad = umad_get_mad(umad);
85 ib_mad_addr_t *mad_addr;
86 ib_rpc_t rpc = {0};
87 ib_portid_t rport;
88 int is_smi;
89
90 if (!portid) {
91 if (!(mad_addr = umad_get_mad_addr(umad)))
92 return -1;
93
94 memset(&rport, 0, sizeof(rport));
95
96 rport.lid = ntohs(mad_addr->lid);
97 rport.qp = ntohl(mad_addr->qpn);
98 rport.qkey = ntohl(mad_addr->qkey);
99 rport.sl = mad_addr->sl;
100
101 portid = &rport;
102 }
103
104 DEBUG("dest %s", portid2str(portid));
105
106 rpc.mgtclass = mad_get_field(mad, 0, IB_MAD_MGMTCLASS_F);
107
108 rpc.method = mad_get_field(mad, 0, IB_MAD_METHOD_F);
109 if (rpc.method == IB_MAD_METHOD_SET)
110 rpc.method = IB_MAD_METHOD_GET;
111 if (rpc.method != IB_MAD_METHOD_SEND)
112 rpc.method |= IB_MAD_RESPONSE;
113
114 rpc.attr.id = mad_get_field(mad, 0, IB_MAD_ATTRID_F);
115 rpc.attr.mod = mad_get_field(mad, 0, IB_MAD_ATTRMOD_F);
116 if (rpc.mgtclass == IB_SA_CLASS)
117 rpc.recsz = mad_get_field(mad, 0, IB_SA_ATTROFFS_F);
118 if (mad_is_vendor_range2(rpc.mgtclass))
119 rpc.oui = mad_get_field(mad, 0, IB_VEND2_OUI_F);
120
121 rpc.trid = mad_get_field64(mad, 0, IB_MAD_TRID_F);
122
123 /* cleared by default: timeout, datasz, dataoffs, mkey, mask */
124
125 is_smi = rpc.mgtclass == IB_SMI_CLASS ||
126 rpc.mgtclass == IB_SMI_DIRECT_CLASS;
127
128 if (is_smi)
129 portid->qp = 0;
130 else if (!portid->qp)
131 portid->qp = 1;
132
133 if (!portid->qkey && portid->qp == 1)
134 portid->qkey = IB_DEFAULT_QP1_QKEY;
135
136 DEBUG("qp 0x%x class 0x%x method %d attr 0x%x mod 0x%x datasz %d off %d qkey %x",
137 portid->qp, rpc.mgtclass, rpc.method, rpc.attr.id, rpc.attr.mod,
138 rpc.datasz, rpc.dataoffs, portid->qkey);
139
140 if (mad_build_pkt(umad, &rpc, portid, 0, 0) < 0)
141 return -1;
142
143 if (ibdebug > 1)
144 xdump(stderr, "mad respond pkt\n", mad, IB_MAD_SIZE);
145
146 if (umad_send(madrpc_portid(), mad_class_agent(rpc.mgtclass), umad,
147 IB_MAD_SIZE, rpc.timeout, 0) < 0) {
148 DEBUG("send failed; %m");
149 return -1;
150 }
151
152 return 0;
153 }
154
155 void *
mad_receive(void * umad,int timeout)156 mad_receive(void *umad, int timeout)
157 {
158 void *mad = umad ? umad : umad_alloc(1, umad_size() + IB_MAD_SIZE);
159 int agent;
160 int length = IB_MAD_SIZE;
161
162 if ((agent = umad_recv(madrpc_portid(), mad,
163 &length, timeout)) < 0) {
164 if (!umad)
165 umad_free(mad);
166 DEBUG("recv failed: %m");
167 return 0;
168 }
169
170 return mad;
171 }
172
173 void *
mad_alloc(void)174 mad_alloc(void)
175 {
176 return umad_alloc(1, umad_size() + IB_MAD_SIZE);
177 }
178
179 void
mad_free(void * umad)180 mad_free(void *umad)
181 {
182 umad_free(umad);
183 }
184