15  *      - Redistributions of source code must retain the above
19  *      - Redistributions in binary form must reproduce the above
35 #if HAVE_CONFIG_H
49 	smp->qnext = NULL;  in queue_smp()
50 	if (!engine->smp_queue_head) {  in queue_smp()
51 		engine->smp_queue_head = smp;  in queue_smp()
52 		engine->smp_queue_tail = smp;  in queue_smp()
54 		engine->smp_queue_tail->qnext = smp;  in queue_smp()
55 		engine->smp_queue_tail = smp;  in queue_smp()
61 	ibnd_smp_t *head = engine->smp_queue_head;  in get_smp()
62 	ibnd_smp_t *tail = engine->smp_queue_tail;  in get_smp()
64 	if (head) {  in get_smp()
65 		if (tail == head)  in get_smp()
66 			engine->smp_queue_tail = NULL;  in get_smp()
67 		engine->smp_queue_head = head->qnext;  in get_smp()
76 	ib_rpc_t *rpc = &smp->rpc;  in send_smp()  local
81 	if (rpc->mgtclass == IB_SMI_CLASS) {  in send_smp()
82 		agent = engine->smi_agent;  in send_smp()
83 	} else if (rpc->mgtclass == IB_SMI_DIRECT_CLASS) {  in send_smp()
84 		agent = engine->smi_dir_agent;  in send_smp()
86 		IBND_ERROR("Invalid class for RPC\n");  in send_smp()
87 		return (-EIO);  in send_smp()
90 	if ((rc = mad_build_pkt(umad, &smp->rpc, &smp->path, NULL, NULL))  in send_smp()
96 	if ((rc = umad_send(engine->umad_fd, agent, umad, IB_MAD_SIZE,  in send_smp()
97 			    engine->cfg->timeout_ms, engine->cfg->retries)) < 0) {  in send_smp()
109 	while (cl_qmap_count(&engine->smps_on_wire)  in process_smp_queue()
110 	       < engine->cfg->max_smps) {  in process_smp_queue()
112 		if (!smp)  in process_smp_queue()
115 		if ((rc = send_smp(smp, engine)) != 0) {  in process_smp_queue()
119 		cl_qmap_insert(&engine->smps_on_wire, (uint32_t) smp->rpc.trid,  in process_smp_queue()
121 		engine->total_smps++;  in process_smp_queue()
130 	if (!smp) {  in issue_smp()
132 		return -ENOMEM;  in issue_smp()
135 	smp->cb = cb;  in issue_smp()
136 	smp->cb_data = cb_data;  in issue_smp()
137 	smp->path = *portid;  in issue_smp()
138 	smp->rpc.method = IB_MAD_METHOD_GET;  in issue_smp()
139 	smp->rpc.attr.id = attrid;  in issue_smp()
140 	smp->rpc.attr.mod = mod;  in issue_smp()
141 	smp->rpc.timeout = engine->cfg->timeout_ms;  in issue_smp()
142 	smp->rpc.datasz = IB_SMP_DATA_SIZE;  in issue_smp()
143 	smp->rpc.dataoffs = IB_SMP_DATA_OFFS;  in issue_smp()
144 	smp->rpc.trid = mad_trid();  in issue_smp()
145 	smp->rpc.mkey = engine->cfg->mkey;  in issue_smp()
147 	if (portid->lid <= 0 || portid->drpath.drslid == 0xffff ||  in issue_smp()
148 	    portid->drpath.drdlid == 0xffff)  in issue_smp()
149 		smp->rpc.mgtclass = IB_SMI_DIRECT_CLASS;	/* direct SMI */  in issue_smp()
151 		smp->rpc.mgtclass = IB_SMI_CLASS;	/* Lid routed SMI */  in issue_smp()
153 	portid->sl = 0;  in issue_smp()
154 	portid->qp = 0;  in issue_smp()
173 	if ((rc = umad_recv(engine->umad_fd, umad, &length,  in process_one_recv()
174 			    -1)) < 0) {  in process_one_recv()
176 		return -1;  in process_one_recv()
182 	smp = (ibnd_smp_t *) cl_qmap_remove(&engine->smps_on_wire, trid);  in process_one_recv()
183 	if ((cl_map_item_t *) smp == cl_qmap_end(&engine->smps_on_wire)) {  in process_one_recv()
185 		return -1;  in process_one_recv()
189 	if (rc)  in process_one_recv()
192 	if ((status = umad_status(umad))) {  in process_one_recv()
194 			   portid2str(&smp->path), smp->rpc.attr.id,  in process_one_recv()
195 			   smp->rpc.attr.mod, status, strerror(status));  in process_one_recv()
196 		if (smp->rpc.attr.id == IB_ATTR_MLNX_EXT_PORT_INFO)  in process_one_recv()
198 						    smp->cb_data);  in process_one_recv()
199 	} else if ((status = mad_get_field(mad, 0, IB_DRSMP_STATUS_F))) {  in process_one_recv()
201 			   portid2str(&smp->path), smp->rpc.attr.id,  in process_one_recv()
202 			   smp->rpc.attr.mod, status);  in process_one_recv()
203 		if (smp->rpc.attr.id == IB_ATTR_MLNX_EXT_PORT_INFO)  in process_one_recv()
205 						    smp->cb_data);  in process_one_recv()
207 		rc = smp->cb(engine, smp, mad, smp->cb_data);  in process_one_recv()
219 	if (umad_init() < 0) {  in smp_engine_init()
221 		return -EIO;  in smp_engine_init()
224 	engine->umad_fd = umad_open_port(ca_name, ca_port);  in smp_engine_init()
225 	if (engine->umad_fd < 0) {  in smp_engine_init()
227 		return -EIO;  in smp_engine_init()
230 	if ((engine->smi_agent = umad_register(engine->umad_fd,  in smp_engine_init()
237 	if ((engine->smi_dir_agent = umad_register(engine->umad_fd,  in smp_engine_init()
244 	engine->user_data = user_data;  in smp_engine_init()
245 	cl_qmap_init(&engine->smps_on_wire);  in smp_engine_init()
246 	engine->cfg = cfg;  in smp_engine_init()
250 	umad_close_port(engine->umad_fd);  in smp_engine_init()
251 	return (-EIO);  in smp_engine_init()
261 	if (smp)  in smp_engine_destroy()
267 	item = cl_qmap_head(&engine->smps_on_wire);  in smp_engine_destroy()
268 	if (item != cl_qmap_end(&engine->smps_on_wire))  in smp_engine_destroy()
270 	for ( /* */ ; item != cl_qmap_end(&engine->smps_on_wire);  in smp_engine_destroy()
271 	     item = cl_qmap_head(&engine->smps_on_wire)) {  in smp_engine_destroy()
272 		cl_qmap_remove_item(&engine->smps_on_wire, item);  in smp_engine_destroy()
276 	umad_close_port(engine->umad_fd);  in smp_engine_destroy()
282 	while (!cl_is_qmap_empty(&engine->smps_on_wire))  in process_mads()
283 		if ((rc = process_one_recv(engine)) != 0)  in process_mads()