4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
33 * Author: Isaac Huang <isaac@clusterfs.com>
35 * 2012-05-13: Liang Zhen <liang@whamcloud.com>
36 * - percpt data for service to improve smp performance
40 #define DEBUG_SUBSYSTEM S_LNET
52 static struct smoketest_rpc {
53 spinlock_t rpc_glock; /* global lock */
54 struct srpc_service *rpc_services[SRPC_SERVICE_MAX_ID + 1];
55 lnet_handler_t rpc_lnet_handler;/* _the_ LNet event handler */
56 enum srpc_state rpc_state;
57 struct srpc_counters rpc_counters;
58 __u64 rpc_matchbits; /* matchbits counter */
62 srpc_serv_portal(int svc_id)
64 return svc_id < SRPC_FRAMEWORK_SERVICE_MAX_ID ?
65 SRPC_FRAMEWORK_REQUEST_PORTAL : SRPC_REQUEST_PORTAL;
69 static int srpc_handle_rpc(struct swi_workitem *wi);
71 void srpc_get_counters(struct srpc_counters *cnt)
73 spin_lock(&srpc_data.rpc_glock);
74 *cnt = srpc_data.rpc_counters;
75 spin_unlock(&srpc_data.rpc_glock);
78 void srpc_set_counters(const struct srpc_counters *cnt)
80 spin_lock(&srpc_data.rpc_glock);
81 srpc_data.rpc_counters = *cnt;
82 spin_unlock(&srpc_data.rpc_glock);
86 srpc_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i, int off,
89 LASSERT(off < PAGE_SIZE);
90 LASSERT(nob > 0 && nob <= PAGE_SIZE);
92 bk->bk_iovs[i].bv_offset = off;
93 bk->bk_iovs[i].bv_page = pg;
94 bk->bk_iovs[i].bv_len = nob;
99 srpc_free_bulk(struct srpc_bulk *bk)
106 for (i = 0; i < bk->bk_niov; i++) {
107 pg = bk->bk_iovs[i].bv_page;
114 LIBCFS_FREE(bk, offsetof(struct srpc_bulk, bk_iovs[bk->bk_niov]));
118 srpc_alloc_bulk(int cpt, unsigned bulk_off, unsigned bulk_npg,
119 unsigned bulk_len, int sink)
121 struct srpc_bulk *bk;
124 LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV);
126 LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt,
127 offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
129 CERROR("Can't allocate descriptor for %d pages\n", bulk_npg);
133 memset(bk, 0, offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
135 bk->bk_len = bulk_len;
136 bk->bk_niov = bulk_npg;
138 for (i = 0; i < bulk_npg; i++) {
142 pg = cfs_page_cpt_alloc(lnet_cpt_table(), cpt, GFP_KERNEL);
144 CERROR("Can't allocate page %d of %d\n", i, bulk_npg);
149 nob = min_t(unsigned, bulk_off + bulk_len, PAGE_SIZE) -
152 srpc_add_bulk_page(bk, pg, i, bulk_off, nob);
165 spin_lock(&srpc_data.rpc_glock);
166 id = srpc_data.rpc_matchbits++;
167 spin_unlock(&srpc_data.rpc_glock);
172 srpc_init_server_rpc(struct srpc_server_rpc *rpc,
173 struct srpc_service_cd *scd,
174 struct srpc_buffer *buffer)
176 memset(rpc, 0, sizeof(*rpc));
177 swi_init_workitem(&rpc->srpc_wi, srpc_handle_rpc,
178 srpc_serv_is_framework(scd->scd_svc) ?
179 lst_sched_serial : lst_sched_test[scd->scd_cpt]);
181 rpc->srpc_ev.ev_fired = 1; /* no event expected now */
184 rpc->srpc_reqstbuf = buffer;
185 rpc->srpc_peer = buffer->buf_peer;
186 rpc->srpc_self = buffer->buf_self;
187 LNetInvalidateMDHandle(&rpc->srpc_replymdh);
191 srpc_service_fini(struct srpc_service *svc)
193 struct srpc_service_cd *scd;
194 struct srpc_server_rpc *rpc;
195 struct srpc_buffer *buf;
199 if (svc->sv_cpt_data == NULL)
202 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
204 if (!list_empty(&scd->scd_buf_posted))
205 q = &scd->scd_buf_posted;
206 else if (!list_empty(&scd->scd_buf_blocked))
207 q = &scd->scd_buf_blocked;
211 while (!list_empty(q)) {
212 buf = list_entry(q->next,
215 list_del(&buf->buf_list);
216 LIBCFS_FREE(buf, sizeof(*buf));
220 LASSERT(list_empty(&scd->scd_rpc_active));
222 while (!list_empty(&scd->scd_rpc_free)) {
223 rpc = list_entry(scd->scd_rpc_free.next,
224 struct srpc_server_rpc,
226 list_del(&rpc->srpc_list);
227 LIBCFS_FREE(rpc, sizeof(*rpc));
231 cfs_percpt_free(svc->sv_cpt_data);
232 svc->sv_cpt_data = NULL;
236 srpc_service_nrpcs(struct srpc_service *svc)
238 int nrpcs = svc->sv_wi_total / svc->sv_ncpts;
240 return srpc_serv_is_framework(svc) ?
241 max(nrpcs, SFW_FRWK_WI_MIN) : max(nrpcs, SFW_TEST_WI_MIN);
244 int srpc_add_buffer(struct swi_workitem *wi);
247 srpc_service_init(struct srpc_service *svc)
249 struct srpc_service_cd *scd;
250 struct srpc_server_rpc *rpc;
255 svc->sv_shuttingdown = 0;
257 svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
258 sizeof(struct srpc_service_cd));
259 if (svc->sv_cpt_data == NULL)
262 svc->sv_ncpts = srpc_serv_is_framework(svc) ?
263 1 : cfs_cpt_number(lnet_cpt_table());
264 nrpcs = srpc_service_nrpcs(svc);
266 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
269 spin_lock_init(&scd->scd_lock);
270 INIT_LIST_HEAD(&scd->scd_rpc_free);
271 INIT_LIST_HEAD(&scd->scd_rpc_active);
272 INIT_LIST_HEAD(&scd->scd_buf_posted);
273 INIT_LIST_HEAD(&scd->scd_buf_blocked);
275 scd->scd_ev.ev_data = scd;
276 scd->scd_ev.ev_type = SRPC_REQUEST_RCVD;
278 /* NB: don't use lst_sched_serial for adding buffer,
279 * see details in srpc_service_add_buffers() */
280 swi_init_workitem(&scd->scd_buf_wi,
281 srpc_add_buffer, lst_sched_test[i]);
283 if (i != 0 && srpc_serv_is_framework(svc)) {
284 /* NB: framework service only needs srpc_service_cd for
285 * one partition, but we allocate for all to make
286 * it easier to implement, it will waste a little
287 * memory but nobody should care about this */
291 for (j = 0; j < nrpcs; j++) {
292 LIBCFS_CPT_ALLOC(rpc, lnet_cpt_table(),
295 srpc_service_fini(svc);
298 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
306 srpc_add_service(struct srpc_service *sv)
310 LASSERT(0 <= id && id <= SRPC_SERVICE_MAX_ID);
312 if (srpc_service_init(sv) != 0)
315 spin_lock(&srpc_data.rpc_glock);
317 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
319 if (srpc_data.rpc_services[id] != NULL) {
320 spin_unlock(&srpc_data.rpc_glock);
324 srpc_data.rpc_services[id] = sv;
325 spin_unlock(&srpc_data.rpc_glock);
327 CDEBUG(D_NET, "Adding service: id %d, name %s\n", id, sv->sv_name);
331 srpc_service_fini(sv);
336 srpc_remove_service(struct srpc_service *sv)
340 spin_lock(&srpc_data.rpc_glock);
342 if (srpc_data.rpc_services[id] != sv) {
343 spin_unlock(&srpc_data.rpc_glock);
347 srpc_data.rpc_services[id] = NULL;
348 spin_unlock(&srpc_data.rpc_glock);
353 srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
354 int len, int options, struct lnet_process_id peer,
355 struct lnet_handle_md *mdh, struct srpc_event *ev)
361 me = LNetMEAttach(portal, peer, matchbits, 0, LNET_UNLINK,
362 local ? LNET_INS_LOCAL : LNET_INS_AFTER);
365 CERROR("LNetMEAttach failed: %d\n", rc);
366 LASSERT(rc == -ENOMEM);
374 md.options = options;
375 md.handler = srpc_data.rpc_lnet_handler;
377 rc = LNetMDAttach(me, &md, LNET_UNLINK, mdh);
379 CERROR("LNetMDAttach failed: %d\n", rc);
380 LASSERT(rc == -ENOMEM);
386 "Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
387 libcfs_id2str(peer), portal, matchbits);
392 srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
393 int options, struct lnet_process_id peer,
394 lnet_nid_t self, struct lnet_handle_md *mdh,
395 struct srpc_event *ev)
403 md.handler = srpc_data.rpc_lnet_handler;
404 md.threshold = ((options & LNET_MD_OP_GET) != 0) ? 2 : 1;
405 md.options = options & ~(LNET_MD_OP_PUT | LNET_MD_OP_GET);
407 rc = LNetMDBind(&md, LNET_UNLINK, mdh);
409 CERROR("LNetMDBind failed: %d\n", rc);
410 LASSERT(rc == -ENOMEM);
414 /* this is kind of an abuse of the LNET_MD_OP_{PUT,GET} options.
415 * they're only meaningful for MDs attached to an ME (i.e. passive
418 if ((options & LNET_MD_OP_PUT) != 0) {
419 rc = LNetPut(self, *mdh, LNET_NOACK_REQ, peer,
420 portal, matchbits, 0, 0);
422 LASSERT((options & LNET_MD_OP_GET) != 0);
424 rc = LNetGet(self, *mdh, peer, portal, matchbits, 0, false);
428 CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
429 ((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
430 libcfs_id2str(peer), portal, matchbits, rc);
432 /* The forthcoming unlink event will complete this operation
433 * with failure, so fall through and return success here.
435 rc = LNetMDUnlink(*mdh);
439 "Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
440 libcfs_id2str(peer), portal, matchbits);
446 srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
447 struct lnet_handle_md *mdh, struct srpc_event *ev)
449 struct lnet_process_id any = {0};
451 any.nid = LNET_NID_ANY;
452 any.pid = LNET_PID_ANY;
454 return srpc_post_passive_rdma(srpc_serv_portal(service),
455 local, service, buf, len,
456 LNET_MD_OP_PUT, any, mdh, ev);
460 srpc_service_post_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf)
461 __must_hold(&scd->scd_lock)
463 struct srpc_service *sv = scd->scd_svc;
464 struct srpc_msg *msg = &buf->buf_msg;
467 LNetInvalidateMDHandle(&buf->buf_mdh);
468 list_add(&buf->buf_list, &scd->scd_buf_posted);
469 scd->scd_buf_nposted++;
470 spin_unlock(&scd->scd_lock);
472 rc = srpc_post_passive_rqtbuf(sv->sv_id,
473 !srpc_serv_is_framework(sv),
474 msg, sizeof(*msg), &buf->buf_mdh,
477 /* At this point, a RPC (new or delayed) may have arrived in
478 * msg and its event handler has been called. So we must add
479 * buf to scd_buf_posted _before_ dropping scd_lock */
481 spin_lock(&scd->scd_lock);
484 if (!sv->sv_shuttingdown)
487 spin_unlock(&scd->scd_lock);
488 /* srpc_shutdown_service might have tried to unlink me
489 * when my buf_mdh was still invalid */
490 LNetMDUnlink(buf->buf_mdh);
491 spin_lock(&scd->scd_lock);
495 scd->scd_buf_nposted--;
496 if (sv->sv_shuttingdown)
497 return rc; /* don't allow to change scd_buf_posted */
499 list_del(&buf->buf_list);
500 spin_unlock(&scd->scd_lock);
502 LIBCFS_FREE(buf, sizeof(*buf));
504 spin_lock(&scd->scd_lock);
509 srpc_add_buffer(struct swi_workitem *wi)
511 struct srpc_service_cd *scd = container_of(wi, struct srpc_service_cd,
513 struct srpc_buffer *buf;
516 /* it's called by workitem scheduler threads, these threads
517 * should have been set CPT affinity, so buffers will be posted
518 * on CPT local list of Portal */
519 spin_lock(&scd->scd_lock);
521 while (scd->scd_buf_adjust > 0 &&
522 !scd->scd_svc->sv_shuttingdown) {
523 scd->scd_buf_adjust--; /* consume it */
524 scd->scd_buf_posting++;
526 spin_unlock(&scd->scd_lock);
528 LIBCFS_ALLOC(buf, sizeof(*buf));
530 CERROR("Failed to add new buf to service: %s\n",
531 scd->scd_svc->sv_name);
532 spin_lock(&scd->scd_lock);
537 spin_lock(&scd->scd_lock);
538 if (scd->scd_svc->sv_shuttingdown) {
539 spin_unlock(&scd->scd_lock);
540 LIBCFS_FREE(buf, sizeof(*buf));
542 spin_lock(&scd->scd_lock);
547 rc = srpc_service_post_buffer(scd, buf);
549 break; /* buf has been freed inside */
551 LASSERT(scd->scd_buf_posting > 0);
552 scd->scd_buf_posting--;
553 scd->scd_buf_total++;
554 scd->scd_buf_low = max(2, scd->scd_buf_total / 4);
558 scd->scd_buf_err_stamp = ktime_get_real_seconds();
559 scd->scd_buf_err = rc;
561 LASSERT(scd->scd_buf_posting > 0);
562 scd->scd_buf_posting--;
565 spin_unlock(&scd->scd_lock);
570 srpc_service_add_buffers(struct srpc_service *sv, int nbuffer)
572 struct srpc_service_cd *scd;
576 LASSERTF(nbuffer > 0, "nbuffer must be positive: %d\n", nbuffer);
578 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
579 spin_lock(&scd->scd_lock);
581 scd->scd_buf_err = 0;
582 scd->scd_buf_err_stamp = 0;
583 scd->scd_buf_posting = 0;
584 scd->scd_buf_adjust = nbuffer;
585 /* start to post buffers */
586 swi_schedule_workitem(&scd->scd_buf_wi);
587 spin_unlock(&scd->scd_lock);
589 /* framework service only post buffer for one partition */
590 if (srpc_serv_is_framework(sv))
594 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
595 spin_lock(&scd->scd_lock);
597 * NB: srpc_service_add_buffers() can be called inside
598 * thread context of lst_sched_serial, and we don't normally
599 * allow to sleep inside thread context of WI scheduler
600 * because it will block current scheduler thread from doing
601 * anything else, even worse, it could deadlock if it's
602 * waiting on result from another WI of the same scheduler.
603 * However, it's safe at here because scd_buf_wi is scheduled
604 * by thread in a different WI scheduler (lst_sched_test),
605 * so we don't have any risk of deadlock, though this could
606 * block all WIs pending on lst_sched_serial for a moment
607 * which is not good but not fatal.
609 lst_wait_until(scd->scd_buf_err != 0 ||
610 (scd->scd_buf_adjust == 0 &&
611 scd->scd_buf_posting == 0),
612 scd->scd_lock, "waiting for adding buffer\n");
614 if (scd->scd_buf_err != 0 && rc == 0)
615 rc = scd->scd_buf_err;
617 spin_unlock(&scd->scd_lock);
624 srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer)
626 struct srpc_service_cd *scd;
630 LASSERT(!sv->sv_shuttingdown);
632 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
633 spin_lock(&scd->scd_lock);
635 num = scd->scd_buf_total + scd->scd_buf_posting;
636 scd->scd_buf_adjust -= min(nbuffer, num);
638 spin_unlock(&scd->scd_lock);
642 /* returns 1 if sv has finished, otherwise 0 */
644 srpc_finish_service(struct srpc_service *sv)
646 struct srpc_service_cd *scd;
647 struct srpc_server_rpc *rpc;
650 LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */
652 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
653 spin_lock(&scd->scd_lock);
654 if (!swi_deschedule_workitem(&scd->scd_buf_wi)) {
655 spin_unlock(&scd->scd_lock);
659 if (scd->scd_buf_nposted > 0) {
660 CDEBUG(D_NET, "waiting for %d posted buffers to unlink\n",
661 scd->scd_buf_nposted);
662 spin_unlock(&scd->scd_lock);
666 if (list_empty(&scd->scd_rpc_active)) {
667 spin_unlock(&scd->scd_lock);
671 rpc = list_entry(scd->scd_rpc_active.next,
672 struct srpc_server_rpc, srpc_list);
673 CNETERR("Active RPC %p on shutdown: sv %s, peer %s, wi %s scheduled %d running %d, ev fired %d type %d status %d lnet %d\n",
674 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
675 swi_state2str(rpc->srpc_wi.swi_state),
676 rpc->srpc_wi.swi_workitem.wi_scheduled,
677 rpc->srpc_wi.swi_workitem.wi_running,
678 rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type,
679 rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet);
680 spin_unlock(&scd->scd_lock);
684 /* no lock needed from now on */
685 srpc_service_fini(sv);
689 /* called with sv->sv_lock held */
691 srpc_service_recycle_buffer(struct srpc_service_cd *scd,
692 struct srpc_buffer *buf)
693 __must_hold(&scd->scd_lock)
695 if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) {
696 if (srpc_service_post_buffer(scd, buf) != 0) {
697 CWARN("Failed to post %s buffer\n",
698 scd->scd_svc->sv_name);
703 /* service is shutting down, or we want to recycle some buffers */
704 scd->scd_buf_total--;
706 if (scd->scd_buf_adjust < 0) {
707 scd->scd_buf_adjust++;
708 if (scd->scd_buf_adjust < 0 &&
709 scd->scd_buf_total == 0 && scd->scd_buf_posting == 0) {
711 "Try to recyle %d buffers but nothing left\n",
712 scd->scd_buf_adjust);
713 scd->scd_buf_adjust = 0;
717 spin_unlock(&scd->scd_lock);
718 LIBCFS_FREE(buf, sizeof(*buf));
719 spin_lock(&scd->scd_lock);
723 srpc_abort_service(struct srpc_service *sv)
725 struct srpc_service_cd *scd;
726 struct srpc_server_rpc *rpc;
729 CDEBUG(D_NET, "Aborting service: id %d, name %s\n",
730 sv->sv_id, sv->sv_name);
732 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
733 spin_lock(&scd->scd_lock);
735 /* schedule in-flight RPCs to notice the abort, NB:
736 * racing with incoming RPCs; complete fix should make test
737 * RPCs carry session ID in its headers
739 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list) {
740 rpc->srpc_aborted = 1;
741 swi_schedule_workitem(&rpc->srpc_wi);
744 spin_unlock(&scd->scd_lock);
749 srpc_shutdown_service(struct srpc_service *sv)
751 struct srpc_service_cd *scd;
752 struct srpc_server_rpc *rpc;
753 struct srpc_buffer *buf;
756 CDEBUG(D_NET, "Shutting down service: id %d, name %s\n",
757 sv->sv_id, sv->sv_name);
759 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
760 spin_lock(&scd->scd_lock);
762 sv->sv_shuttingdown = 1; /* i.e. no new active RPC */
764 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
765 spin_unlock(&scd->scd_lock);
767 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
768 spin_lock(&scd->scd_lock);
770 /* schedule in-flight RPCs to notice the shutdown */
771 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list)
772 swi_schedule_workitem(&rpc->srpc_wi);
774 spin_unlock(&scd->scd_lock);
776 /* OK to traverse scd_buf_posted without lock, since no one
777 * touches scd_buf_posted now
779 list_for_each_entry(buf, &scd->scd_buf_posted, buf_list)
780 LNetMDUnlink(buf->buf_mdh);
785 srpc_send_request(struct srpc_client_rpc *rpc)
787 struct srpc_event *ev = &rpc->crpc_reqstev;
792 ev->ev_type = SRPC_REQUEST_SENT;
794 rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service),
795 rpc->crpc_service, &rpc->crpc_reqstmsg,
796 sizeof(struct srpc_msg), LNET_MD_OP_PUT,
797 rpc->crpc_dest, LNET_NID_ANY,
798 &rpc->crpc_reqstmdh, ev);
800 LASSERT(rc == -ENOMEM);
801 ev->ev_fired = 1; /* no more event expected */
807 srpc_prepare_reply(struct srpc_client_rpc *rpc)
809 struct srpc_event *ev = &rpc->crpc_replyev;
810 u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
815 ev->ev_type = SRPC_REPLY_RCVD;
817 *id = srpc_next_id();
819 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
821 sizeof(struct srpc_msg),
822 LNET_MD_OP_PUT, rpc->crpc_dest,
823 &rpc->crpc_replymdh, ev);
825 LASSERT(rc == -ENOMEM);
826 ev->ev_fired = 1; /* no more event expected */
832 srpc_prepare_bulk(struct srpc_client_rpc *rpc)
834 struct srpc_bulk *bk = &rpc->crpc_bulk;
835 struct srpc_event *ev = &rpc->crpc_bulkev;
836 __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid;
840 LASSERT(bk->bk_niov <= LNET_MAX_IOV);
843 if (bk->bk_niov == 0)
846 opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
851 ev->ev_type = SRPC_BULK_REQ_RCVD;
853 *id = srpc_next_id();
855 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
856 &bk->bk_iovs[0], bk->bk_niov, opt,
857 rpc->crpc_dest, &bk->bk_mdh, ev);
859 LASSERT(rc == -ENOMEM);
860 ev->ev_fired = 1; /* no more event expected */
866 srpc_do_bulk(struct srpc_server_rpc *rpc)
868 struct srpc_event *ev = &rpc->srpc_ev;
869 struct srpc_bulk *bk = rpc->srpc_bulk;
870 __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid;
876 opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
881 ev->ev_type = bk->bk_sink ? SRPC_BULK_GET_RPLD : SRPC_BULK_PUT_SENT;
883 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, id,
884 &bk->bk_iovs[0], bk->bk_niov, opt,
885 rpc->srpc_peer, rpc->srpc_self,
888 ev->ev_fired = 1; /* no more event expected */
892 /* only called from srpc_handle_rpc */
894 srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status)
896 struct srpc_service_cd *scd = rpc->srpc_scd;
897 struct srpc_service *sv = scd->scd_svc;
898 struct srpc_buffer *buffer;
900 LASSERT(status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
902 rpc->srpc_status = status;
904 CDEBUG_LIMIT(status == 0 ? D_NET : D_NETERROR,
905 "Server RPC %p done: service %s, peer %s, status %s:%d\n",
906 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
907 swi_state2str(rpc->srpc_wi.swi_state), status);
910 spin_lock(&srpc_data.rpc_glock);
911 srpc_data.rpc_counters.rpcs_dropped++;
912 spin_unlock(&srpc_data.rpc_glock);
915 if (rpc->srpc_done != NULL)
916 (*rpc->srpc_done) (rpc);
917 LASSERT(rpc->srpc_bulk == NULL);
919 spin_lock(&scd->scd_lock);
921 if (rpc->srpc_reqstbuf != NULL) {
922 /* NB might drop sv_lock in srpc_service_recycle_buffer, but
923 * sv won't go away for scd_rpc_active must not be empty
925 srpc_service_recycle_buffer(scd, rpc->srpc_reqstbuf);
926 rpc->srpc_reqstbuf = NULL;
929 list_del(&rpc->srpc_list); /* from scd->scd_rpc_active */
932 * No one can schedule me now since:
933 * - I'm not on scd_rpc_active.
934 * - all LNet events have been fired.
935 * Cancel pending schedules and prevent future schedule attempts:
937 LASSERT(rpc->srpc_ev.ev_fired);
938 swi_exit_workitem(&rpc->srpc_wi);
940 if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) {
941 buffer = list_entry(scd->scd_buf_blocked.next,
942 struct srpc_buffer, buf_list);
943 list_del(&buffer->buf_list);
945 srpc_init_server_rpc(rpc, scd, buffer);
946 list_add_tail(&rpc->srpc_list, &scd->scd_rpc_active);
947 swi_schedule_workitem(&rpc->srpc_wi);
949 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
952 spin_unlock(&scd->scd_lock);
955 /* handles an incoming RPC */
956 static int srpc_handle_rpc(struct swi_workitem *wi)
958 struct srpc_server_rpc *rpc = container_of(wi, struct srpc_server_rpc,
960 struct srpc_service_cd *scd = rpc->srpc_scd;
961 struct srpc_service *sv = scd->scd_svc;
962 struct srpc_event *ev = &rpc->srpc_ev;
965 LASSERT(wi == &rpc->srpc_wi);
967 spin_lock(&scd->scd_lock);
969 if (sv->sv_shuttingdown || rpc->srpc_aborted) {
970 spin_unlock(&scd->scd_lock);
972 if (rpc->srpc_bulk != NULL)
973 LNetMDUnlink(rpc->srpc_bulk->bk_mdh);
974 LNetMDUnlink(rpc->srpc_replymdh);
976 if (ev->ev_fired) { /* no more event, OK to finish */
977 srpc_server_rpc_done(rpc, -ESHUTDOWN);
983 spin_unlock(&scd->scd_lock);
985 switch (wi->swi_state) {
989 case SWI_STATE_NEWBORN: {
990 struct srpc_msg *msg;
991 struct srpc_generic_reply *reply;
993 msg = &rpc->srpc_reqstbuf->buf_msg;
994 reply = &rpc->srpc_replymsg.msg_body.reply;
996 if (msg->msg_magic == 0) {
997 /* moaned already in srpc_lnet_ev_handler */
998 srpc_server_rpc_done(rpc, EBADMSG);
1002 srpc_unpack_msg_hdr(msg);
1003 if (msg->msg_version != SRPC_MSG_VERSION) {
1004 CWARN("Version mismatch: %u, %u expected, from %s\n",
1005 msg->msg_version, SRPC_MSG_VERSION,
1006 libcfs_id2str(rpc->srpc_peer));
1007 reply->status = EPROTO;
1008 /* drop through and send reply */
1011 rc = (*sv->sv_handler)(rpc);
1012 LASSERT(reply->status == 0 || !rpc->srpc_bulk);
1014 srpc_server_rpc_done(rpc, rc);
1019 wi->swi_state = SWI_STATE_BULK_STARTED;
1021 if (rpc->srpc_bulk != NULL) {
1022 rc = srpc_do_bulk(rpc);
1024 return 0; /* wait for bulk */
1026 LASSERT(ev->ev_fired);
1031 case SWI_STATE_BULK_STARTED:
1032 LASSERT(rpc->srpc_bulk == NULL || ev->ev_fired);
1034 if (rpc->srpc_bulk != NULL) {
1037 if (sv->sv_bulk_ready != NULL)
1038 rc = (*sv->sv_bulk_ready) (rpc, rc);
1041 srpc_server_rpc_done(rpc, rc);
1046 wi->swi_state = SWI_STATE_REPLY_SUBMITTED;
1047 rc = srpc_send_reply(rpc);
1049 return 0; /* wait for reply */
1050 srpc_server_rpc_done(rpc, rc);
1053 case SWI_STATE_REPLY_SUBMITTED:
1054 if (!ev->ev_fired) {
1055 CERROR("RPC %p: bulk %p, service %d\n",
1056 rpc, rpc->srpc_bulk, sv->sv_id);
1057 CERROR("Event: status %d, type %d, lnet %d\n",
1058 ev->ev_status, ev->ev_type, ev->ev_lnet);
1059 LASSERT(ev->ev_fired);
1062 wi->swi_state = SWI_STATE_DONE;
1063 srpc_server_rpc_done(rpc, ev->ev_status);
1071 srpc_client_rpc_expired (void *data)
1073 struct srpc_client_rpc *rpc = data;
1075 CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
1076 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1079 spin_lock(&rpc->crpc_lock);
1081 rpc->crpc_timeout = 0;
1082 srpc_abort_rpc(rpc, -ETIMEDOUT);
1084 spin_unlock(&rpc->crpc_lock);
1086 spin_lock(&srpc_data.rpc_glock);
1087 srpc_data.rpc_counters.rpcs_expired++;
1088 spin_unlock(&srpc_data.rpc_glock);
1092 srpc_add_client_rpc_timer(struct srpc_client_rpc *rpc)
1094 struct stt_timer *timer = &rpc->crpc_timer;
1096 if (rpc->crpc_timeout == 0)
1099 INIT_LIST_HEAD(&timer->stt_list);
1100 timer->stt_data = rpc;
1101 timer->stt_func = srpc_client_rpc_expired;
1102 timer->stt_expires = ktime_get_real_seconds() + rpc->crpc_timeout;
1103 stt_add_timer(timer);
1107 * Called with rpc->crpc_lock held.
1109 * Upon exit the RPC expiry timer is not queued and the handler is not
1110 * running on any CPU.
1113 srpc_del_client_rpc_timer(struct srpc_client_rpc *rpc)
1115 /* timer not planted or already exploded */
1116 if (rpc->crpc_timeout == 0)
1119 /* timer successfully defused */
1120 if (stt_del_timer(&rpc->crpc_timer))
1123 /* timer detonated, wait for it to explode */
1124 while (rpc->crpc_timeout != 0) {
1125 spin_unlock(&rpc->crpc_lock);
1129 spin_lock(&rpc->crpc_lock);
1134 srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status)
1136 struct swi_workitem *wi = &rpc->crpc_wi;
1138 LASSERT(status != 0 || wi->swi_state == SWI_STATE_DONE);
1140 spin_lock(&rpc->crpc_lock);
1142 rpc->crpc_closed = 1;
1143 if (rpc->crpc_status == 0)
1144 rpc->crpc_status = status;
1146 srpc_del_client_rpc_timer(rpc);
1148 CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
1149 "Client RPC done: service %d, peer %s, status %s:%d:%d\n",
1150 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1151 swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
1154 * No one can schedule me now since:
1155 * - RPC timer has been defused.
1156 * - all LNet events have been fired.
1157 * - crpc_closed has been set, preventing srpc_abort_rpc from
1159 * Cancel pending schedules and prevent future schedule attempts:
1161 LASSERT(!srpc_event_pending(rpc));
1162 swi_exit_workitem(wi);
1164 spin_unlock(&rpc->crpc_lock);
1166 (*rpc->crpc_done)(rpc);
1169 /* sends an outgoing RPC */
1171 srpc_send_rpc(struct swi_workitem *wi)
1174 struct srpc_client_rpc *rpc;
1175 struct srpc_msg *reply;
1178 LASSERT(wi != NULL);
1180 rpc = container_of(wi, struct srpc_client_rpc, crpc_wi);
1182 LASSERT(rpc != NULL);
1183 LASSERT(wi == &rpc->crpc_wi);
1185 reply = &rpc->crpc_replymsg;
1186 do_bulk = rpc->crpc_bulk.bk_niov > 0;
1188 spin_lock(&rpc->crpc_lock);
1190 if (rpc->crpc_aborted) {
1191 spin_unlock(&rpc->crpc_lock);
1195 spin_unlock(&rpc->crpc_lock);
1197 switch (wi->swi_state) {
1200 case SWI_STATE_NEWBORN:
1201 LASSERT(!srpc_event_pending(rpc));
1203 rc = srpc_prepare_reply(rpc);
1205 srpc_client_rpc_done(rpc, rc);
1209 rc = srpc_prepare_bulk(rpc);
1213 wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
1214 rc = srpc_send_request(rpc);
1217 case SWI_STATE_REQUEST_SUBMITTED:
1218 /* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
1219 * order; however, they're processed in a strict order:
1220 * rqt, rpy, and bulk.
1222 if (!rpc->crpc_reqstev.ev_fired)
1225 rc = rpc->crpc_reqstev.ev_status;
1229 wi->swi_state = SWI_STATE_REQUEST_SENT;
1231 case SWI_STATE_REQUEST_SENT: {
1232 enum srpc_msg_type type;
1234 type = srpc_service2reply(rpc->crpc_service);
1236 if (!rpc->crpc_replyev.ev_fired)
1239 rc = rpc->crpc_replyev.ev_status;
1243 srpc_unpack_msg_hdr(reply);
1244 if (reply->msg_type != type ||
1245 (reply->msg_magic != SRPC_MSG_MAGIC &&
1246 reply->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1247 CWARN("Bad message from %s: type %u (%d expected), magic %u (%d expected).\n",
1248 libcfs_id2str(rpc->crpc_dest),
1249 reply->msg_type, type,
1250 reply->msg_magic, SRPC_MSG_MAGIC);
1255 if (do_bulk && reply->msg_body.reply.status != 0) {
1256 CWARN("Remote error %d at %s, unlink bulk buffer in case peer didn't initiate bulk transfer\n",
1257 reply->msg_body.reply.status,
1258 libcfs_id2str(rpc->crpc_dest));
1259 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1262 wi->swi_state = SWI_STATE_REPLY_RECEIVED;
1265 case SWI_STATE_REPLY_RECEIVED:
1266 if (do_bulk && !rpc->crpc_bulkev.ev_fired)
1269 rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
1271 /* Bulk buffer was unlinked due to remote error. Clear error
1272 * since reply buffer still contains valid data.
1273 * NB rpc->crpc_done shouldn't look into bulk data in case of
1276 if (do_bulk && rpc->crpc_bulkev.ev_lnet == LNET_EVENT_UNLINK &&
1277 rpc->crpc_status == 0 && reply->msg_body.reply.status != 0)
1280 wi->swi_state = SWI_STATE_DONE;
1281 srpc_client_rpc_done(rpc, rc);
1286 spin_lock(&rpc->crpc_lock);
1287 srpc_abort_rpc(rpc, rc);
1288 spin_unlock(&rpc->crpc_lock);
1292 if (rpc->crpc_aborted) {
1293 LNetMDUnlink(rpc->crpc_reqstmdh);
1294 LNetMDUnlink(rpc->crpc_replymdh);
1295 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1297 if (!srpc_event_pending(rpc)) {
1298 srpc_client_rpc_done(rpc, -EINTR);
1305 struct srpc_client_rpc *
1306 srpc_create_client_rpc(struct lnet_process_id peer, int service,
1307 int nbulkiov, int bulklen,
1308 void (*rpc_done)(struct srpc_client_rpc *),
1309 void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
1311 struct srpc_client_rpc *rpc;
1313 LIBCFS_ALLOC(rpc, offsetof(struct srpc_client_rpc,
1314 crpc_bulk.bk_iovs[nbulkiov]));
1318 srpc_init_client_rpc(rpc, peer, service, nbulkiov,
1319 bulklen, rpc_done, rpc_fini, priv);
1323 /* called with rpc->crpc_lock held */
1325 srpc_abort_rpc(struct srpc_client_rpc *rpc, int why)
1329 if (rpc->crpc_aborted || /* already aborted */
1330 rpc->crpc_closed) /* callback imminent */
1334 "Aborting RPC: service %d, peer %s, state %s, why %d\n",
1335 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1336 swi_state2str(rpc->crpc_wi.swi_state), why);
1338 rpc->crpc_aborted = 1;
1339 rpc->crpc_status = why;
1340 swi_schedule_workitem(&rpc->crpc_wi);
1343 /* called with rpc->crpc_lock held */
1345 srpc_post_rpc(struct srpc_client_rpc *rpc)
1347 LASSERT(!rpc->crpc_aborted);
1348 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
1350 CDEBUG(D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
1351 libcfs_id2str(rpc->crpc_dest), rpc->crpc_service,
1354 srpc_add_client_rpc_timer(rpc);
1355 swi_schedule_workitem(&rpc->crpc_wi);
1360 srpc_send_reply(struct srpc_server_rpc *rpc)
1362 struct srpc_event *ev = &rpc->srpc_ev;
1363 struct srpc_msg *msg = &rpc->srpc_replymsg;
1364 struct srpc_buffer *buffer = rpc->srpc_reqstbuf;
1365 struct srpc_service_cd *scd = rpc->srpc_scd;
1366 struct srpc_service *sv = scd->scd_svc;
1370 LASSERT(buffer != NULL);
1371 rpyid = buffer->buf_msg.msg_body.reqst.rpyid;
1373 spin_lock(&scd->scd_lock);
1375 if (!sv->sv_shuttingdown && !srpc_serv_is_framework(sv)) {
1376 /* Repost buffer before replying since test client
1377 * might send me another RPC once it gets the reply
1379 if (srpc_service_post_buffer(scd, buffer) != 0)
1380 CWARN("Failed to repost %s buffer\n", sv->sv_name);
1381 rpc->srpc_reqstbuf = NULL;
1384 spin_unlock(&scd->scd_lock);
1388 ev->ev_type = SRPC_REPLY_SENT;
1390 msg->msg_magic = SRPC_MSG_MAGIC;
1391 msg->msg_version = SRPC_MSG_VERSION;
1392 msg->msg_type = srpc_service2reply(sv->sv_id);
1394 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, rpyid, msg,
1395 sizeof(*msg), LNET_MD_OP_PUT,
1396 rpc->srpc_peer, rpc->srpc_self,
1397 &rpc->srpc_replymdh, ev);
1399 ev->ev_fired = 1; /* no more event expected */
1403 /* when in kernel always called with LNET_LOCK() held, and in thread context */
1405 srpc_lnet_ev_handler(struct lnet_event *ev)
1407 struct srpc_service_cd *scd;
1408 struct srpc_event *rpcev = ev->md_user_ptr;
1409 struct srpc_client_rpc *crpc;
1410 struct srpc_server_rpc *srpc;
1411 struct srpc_buffer *buffer;
1412 struct srpc_service *sv;
1413 struct srpc_msg *msg;
1414 enum srpc_msg_type type;
1416 LASSERT(!in_interrupt());
1418 if (ev->status != 0) {
1421 spin_lock(&srpc_data.rpc_glock);
1422 if (ev->status != -ECANCELED) /* cancellation is not error */
1423 srpc_data.rpc_counters.errors++;
1424 errors = srpc_data.rpc_counters.errors;
1425 spin_unlock(&srpc_data.rpc_glock);
1427 CNETERR("LNet event status %d type %d, RPC errors %u\n",
1428 ev->status, ev->type, errors);
1431 rpcev->ev_lnet = ev->type;
1433 switch (rpcev->ev_type) {
1435 CERROR("Unknown event: status %d, type %d, lnet %d\n",
1436 rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
1439 case SRPC_REQUEST_SENT:
1440 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1441 spin_lock(&srpc_data.rpc_glock);
1442 srpc_data.rpc_counters.rpcs_sent++;
1443 spin_unlock(&srpc_data.rpc_glock);
1446 case SRPC_REPLY_RCVD:
1447 case SRPC_BULK_REQ_RCVD:
1448 crpc = rpcev->ev_data;
1450 if (rpcev != &crpc->crpc_reqstev &&
1451 rpcev != &crpc->crpc_replyev &&
1452 rpcev != &crpc->crpc_bulkev) {
1453 CERROR("rpcev %p, crpc %p, reqstev %p, replyev %p, bulkev %p\n",
1454 rpcev, crpc, &crpc->crpc_reqstev,
1455 &crpc->crpc_replyev, &crpc->crpc_bulkev);
1456 CERROR("Bad event: status %d, type %d, lnet %d\n",
1457 rpcev->ev_status, rpcev->ev_type,
1462 spin_lock(&crpc->crpc_lock);
1464 LASSERT(rpcev->ev_fired == 0);
1465 rpcev->ev_fired = 1;
1466 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1467 -EINTR : ev->status;
1468 swi_schedule_workitem(&crpc->crpc_wi);
1470 spin_unlock(&crpc->crpc_lock);
1473 case SRPC_REQUEST_RCVD:
1474 scd = rpcev->ev_data;
1477 LASSERT(rpcev == &scd->scd_ev);
1479 spin_lock(&scd->scd_lock);
1481 LASSERT(ev->unlinked);
1482 LASSERT(ev->type == LNET_EVENT_PUT ||
1483 ev->type == LNET_EVENT_UNLINK);
1484 LASSERT(ev->type != LNET_EVENT_UNLINK ||
1485 sv->sv_shuttingdown);
1487 buffer = container_of(ev->md_start, struct srpc_buffer,
1489 buffer->buf_peer = ev->source;
1490 buffer->buf_self = ev->target.nid;
1492 LASSERT(scd->scd_buf_nposted > 0);
1493 scd->scd_buf_nposted--;
1495 if (sv->sv_shuttingdown) {
1496 /* Leave buffer on scd->scd_buf_nposted since
1497 * srpc_finish_service needs to traverse it.
1499 spin_unlock(&scd->scd_lock);
1503 if (scd->scd_buf_err_stamp != 0 &&
1504 scd->scd_buf_err_stamp < ktime_get_real_seconds()) {
1505 /* re-enable adding buffer */
1506 scd->scd_buf_err_stamp = 0;
1507 scd->scd_buf_err = 0;
1510 if (scd->scd_buf_err == 0 && /* adding buffer is enabled */
1511 scd->scd_buf_adjust == 0 &&
1512 scd->scd_buf_nposted < scd->scd_buf_low) {
1513 scd->scd_buf_adjust = max(scd->scd_buf_total / 2,
1515 swi_schedule_workitem(&scd->scd_buf_wi);
1518 list_del(&buffer->buf_list); /* from scd->scd_buf_posted */
1519 msg = &buffer->buf_msg;
1520 type = srpc_service2request(sv->sv_id);
1522 if (ev->status != 0 || ev->mlength != sizeof(*msg) ||
1523 (msg->msg_type != type &&
1524 msg->msg_type != __swab32(type)) ||
1525 (msg->msg_magic != SRPC_MSG_MAGIC &&
1526 msg->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1527 CERROR("Dropping RPC (%s) from %s: status %d mlength %d type %u magic %u.\n",
1528 sv->sv_name, libcfs_id2str(ev->initiator),
1529 ev->status, ev->mlength,
1530 msg->msg_type, msg->msg_magic);
1532 /* NB can't call srpc_service_recycle_buffer here since
1533 * it may call LNetM[DE]Attach. The invalid magic tells
1534 * srpc_handle_rpc to drop this RPC
1539 if (!list_empty(&scd->scd_rpc_free)) {
1540 srpc = list_entry(scd->scd_rpc_free.next,
1541 struct srpc_server_rpc,
1543 list_del(&srpc->srpc_list);
1545 srpc_init_server_rpc(srpc, scd, buffer);
1546 list_add_tail(&srpc->srpc_list,
1547 &scd->scd_rpc_active);
1548 swi_schedule_workitem(&srpc->srpc_wi);
1550 list_add_tail(&buffer->buf_list,
1551 &scd->scd_buf_blocked);
1554 spin_unlock(&scd->scd_lock);
1556 spin_lock(&srpc_data.rpc_glock);
1557 srpc_data.rpc_counters.rpcs_rcvd++;
1558 spin_unlock(&srpc_data.rpc_glock);
1561 case SRPC_BULK_GET_RPLD:
1562 LASSERT(ev->type == LNET_EVENT_SEND ||
1563 ev->type == LNET_EVENT_REPLY ||
1564 ev->type == LNET_EVENT_UNLINK);
1567 break; /* wait for final event */
1569 case SRPC_BULK_PUT_SENT:
1570 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1571 spin_lock(&srpc_data.rpc_glock);
1573 if (rpcev->ev_type == SRPC_BULK_GET_RPLD)
1574 srpc_data.rpc_counters.bulk_get += ev->mlength;
1576 srpc_data.rpc_counters.bulk_put += ev->mlength;
1578 spin_unlock(&srpc_data.rpc_glock);
1581 case SRPC_REPLY_SENT:
1582 srpc = rpcev->ev_data;
1583 scd = srpc->srpc_scd;
1585 LASSERT(rpcev == &srpc->srpc_ev);
1587 spin_lock(&scd->scd_lock);
1589 rpcev->ev_fired = 1;
1590 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1591 -EINTR : ev->status;
1592 swi_schedule_workitem(&srpc->srpc_wi);
1594 spin_unlock(&scd->scd_lock);
1605 memset(&srpc_data, 0, sizeof(struct smoketest_rpc));
1606 spin_lock_init(&srpc_data.rpc_glock);
1608 /* 1 second pause to avoid timestamp reuse */
1609 schedule_timeout_uninterruptible(cfs_time_seconds(1));
1610 srpc_data.rpc_matchbits = ((__u64) ktime_get_real_seconds()) << 48;
1612 srpc_data.rpc_state = SRPC_STATE_NONE;
1614 rc = LNetNIInit(LNET_PID_LUSTRE);
1616 CERROR("LNetNIInit() has failed: %d\n", rc);
1620 srpc_data.rpc_state = SRPC_STATE_NI_INIT;
1622 srpc_data.rpc_lnet_handler = srpc_lnet_ev_handler;
1624 rc = LNetSetLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1626 rc = LNetSetLazyPortal(SRPC_REQUEST_PORTAL);
1629 srpc_data.rpc_state = SRPC_STATE_EQ_INIT;
1636 srpc_data.rpc_state = SRPC_STATE_RUNNING;
1642 srpc_shutdown (void)
1648 state = srpc_data.rpc_state;
1649 srpc_data.rpc_state = SRPC_STATE_STOPPING;
1655 case SRPC_STATE_RUNNING:
1656 spin_lock(&srpc_data.rpc_glock);
1658 for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) {
1659 struct srpc_service *sv = srpc_data.rpc_services[i];
1661 LASSERTF(sv == NULL,
1662 "service not empty: id %d, name %s\n",
1666 spin_unlock(&srpc_data.rpc_glock);
1671 case SRPC_STATE_EQ_INIT:
1672 rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1673 rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
1675 lnet_assert_handler_unused(srpc_data.rpc_lnet_handler);
1678 case SRPC_STATE_NI_INIT: