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/
30 * Lustre is a trademark of Sun Microsystems, Inc.
34 * Author: Isaac Huang <isaac@clusterfs.com>
36 * 2012-05-13: Liang Zhen <liang@whamcloud.com>
37 * - percpt data for service to improve smp performance
41 #define DEBUG_SUBSYSTEM S_LNET
53 static struct smoketest_rpc {
54 spinlock_t rpc_glock; /* global lock */
55 struct srpc_service *rpc_services[SRPC_SERVICE_MAX_ID + 1];
56 lnet_handler_t rpc_lnet_handler;/* _the_ LNet event handler */
57 enum srpc_state rpc_state;
58 struct srpc_counters rpc_counters;
59 __u64 rpc_matchbits; /* matchbits counter */
63 srpc_serv_portal(int svc_id)
65 return svc_id < SRPC_FRAMEWORK_SERVICE_MAX_ID ?
66 SRPC_FRAMEWORK_REQUEST_PORTAL : SRPC_REQUEST_PORTAL;
70 static int srpc_handle_rpc(struct swi_workitem *wi);
72 void srpc_get_counters(struct srpc_counters *cnt)
74 spin_lock(&srpc_data.rpc_glock);
75 *cnt = srpc_data.rpc_counters;
76 spin_unlock(&srpc_data.rpc_glock);
79 void srpc_set_counters(const struct srpc_counters *cnt)
81 spin_lock(&srpc_data.rpc_glock);
82 srpc_data.rpc_counters = *cnt;
83 spin_unlock(&srpc_data.rpc_glock);
87 srpc_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i, int off,
90 LASSERT(off < PAGE_SIZE);
91 LASSERT(nob > 0 && nob <= PAGE_SIZE);
93 bk->bk_iovs[i].bv_offset = off;
94 bk->bk_iovs[i].bv_page = pg;
95 bk->bk_iovs[i].bv_len = nob;
100 srpc_free_bulk(struct srpc_bulk *bk)
107 for (i = 0; i < bk->bk_niov; i++) {
108 pg = bk->bk_iovs[i].bv_page;
115 LIBCFS_FREE(bk, offsetof(struct srpc_bulk, bk_iovs[bk->bk_niov]));
119 srpc_alloc_bulk(int cpt, unsigned bulk_off, unsigned bulk_npg,
120 unsigned bulk_len, int sink)
122 struct srpc_bulk *bk;
125 LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV);
127 LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt,
128 offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
130 CERROR("Can't allocate descriptor for %d pages\n", bulk_npg);
134 memset(bk, 0, offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
136 bk->bk_len = bulk_len;
137 bk->bk_niov = bulk_npg;
139 for (i = 0; i < bulk_npg; i++) {
143 pg = cfs_page_cpt_alloc(lnet_cpt_table(), cpt, GFP_KERNEL);
145 CERROR("Can't allocate page %d of %d\n", i, bulk_npg);
150 nob = min_t(unsigned, bulk_off + bulk_len, PAGE_SIZE) -
153 srpc_add_bulk_page(bk, pg, i, bulk_off, nob);
166 spin_lock(&srpc_data.rpc_glock);
167 id = srpc_data.rpc_matchbits++;
168 spin_unlock(&srpc_data.rpc_glock);
173 srpc_init_server_rpc(struct srpc_server_rpc *rpc,
174 struct srpc_service_cd *scd,
175 struct srpc_buffer *buffer)
177 memset(rpc, 0, sizeof(*rpc));
178 swi_init_workitem(&rpc->srpc_wi, srpc_handle_rpc,
179 srpc_serv_is_framework(scd->scd_svc) ?
180 lst_sched_serial : lst_sched_test[scd->scd_cpt]);
182 rpc->srpc_ev.ev_fired = 1; /* no event expected now */
185 rpc->srpc_reqstbuf = buffer;
186 rpc->srpc_peer = buffer->buf_peer;
187 rpc->srpc_self = buffer->buf_self;
188 LNetInvalidateMDHandle(&rpc->srpc_replymdh);
192 srpc_service_fini(struct srpc_service *svc)
194 struct srpc_service_cd *scd;
195 struct srpc_server_rpc *rpc;
196 struct srpc_buffer *buf;
200 if (svc->sv_cpt_data == NULL)
203 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
205 if (!list_empty(&scd->scd_buf_posted))
206 q = &scd->scd_buf_posted;
207 else if (!list_empty(&scd->scd_buf_blocked))
208 q = &scd->scd_buf_blocked;
212 while (!list_empty(q)) {
213 buf = list_entry(q->next,
216 list_del(&buf->buf_list);
217 LIBCFS_FREE(buf, sizeof(*buf));
221 LASSERT(list_empty(&scd->scd_rpc_active));
223 while (!list_empty(&scd->scd_rpc_free)) {
224 rpc = list_entry(scd->scd_rpc_free.next,
225 struct srpc_server_rpc,
227 list_del(&rpc->srpc_list);
228 LIBCFS_FREE(rpc, sizeof(*rpc));
232 cfs_percpt_free(svc->sv_cpt_data);
233 svc->sv_cpt_data = NULL;
237 srpc_service_nrpcs(struct srpc_service *svc)
239 int nrpcs = svc->sv_wi_total / svc->sv_ncpts;
241 return srpc_serv_is_framework(svc) ?
242 max(nrpcs, SFW_FRWK_WI_MIN) : max(nrpcs, SFW_TEST_WI_MIN);
245 int srpc_add_buffer(struct swi_workitem *wi);
248 srpc_service_init(struct srpc_service *svc)
250 struct srpc_service_cd *scd;
251 struct srpc_server_rpc *rpc;
256 svc->sv_shuttingdown = 0;
258 svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
259 sizeof(struct srpc_service_cd));
260 if (svc->sv_cpt_data == NULL)
263 svc->sv_ncpts = srpc_serv_is_framework(svc) ?
264 1 : cfs_cpt_number(lnet_cpt_table());
265 nrpcs = srpc_service_nrpcs(svc);
267 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
270 spin_lock_init(&scd->scd_lock);
271 INIT_LIST_HEAD(&scd->scd_rpc_free);
272 INIT_LIST_HEAD(&scd->scd_rpc_active);
273 INIT_LIST_HEAD(&scd->scd_buf_posted);
274 INIT_LIST_HEAD(&scd->scd_buf_blocked);
276 scd->scd_ev.ev_data = scd;
277 scd->scd_ev.ev_type = SRPC_REQUEST_RCVD;
279 /* NB: don't use lst_sched_serial for adding buffer,
280 * see details in srpc_service_add_buffers() */
281 swi_init_workitem(&scd->scd_buf_wi,
282 srpc_add_buffer, lst_sched_test[i]);
284 if (i != 0 && srpc_serv_is_framework(svc)) {
285 /* NB: framework service only needs srpc_service_cd for
286 * one partition, but we allocate for all to make
287 * it easier to implement, it will waste a little
288 * memory but nobody should care about this */
292 for (j = 0; j < nrpcs; j++) {
293 LIBCFS_CPT_ALLOC(rpc, lnet_cpt_table(),
296 srpc_service_fini(svc);
299 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
307 srpc_add_service(struct srpc_service *sv)
311 LASSERT(0 <= id && id <= SRPC_SERVICE_MAX_ID);
313 if (srpc_service_init(sv) != 0)
316 spin_lock(&srpc_data.rpc_glock);
318 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
320 if (srpc_data.rpc_services[id] != NULL) {
321 spin_unlock(&srpc_data.rpc_glock);
325 srpc_data.rpc_services[id] = sv;
326 spin_unlock(&srpc_data.rpc_glock);
328 CDEBUG(D_NET, "Adding service: id %d, name %s\n", id, sv->sv_name);
332 srpc_service_fini(sv);
337 srpc_remove_service(struct srpc_service *sv)
341 spin_lock(&srpc_data.rpc_glock);
343 if (srpc_data.rpc_services[id] != sv) {
344 spin_unlock(&srpc_data.rpc_glock);
348 srpc_data.rpc_services[id] = NULL;
349 spin_unlock(&srpc_data.rpc_glock);
354 srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
355 int len, int options, struct lnet_process_id peer,
356 struct lnet_handle_md *mdh, struct srpc_event *ev)
362 me = LNetMEAttach(portal, peer, matchbits, 0, LNET_UNLINK,
363 local ? LNET_INS_LOCAL : LNET_INS_AFTER);
366 CERROR("LNetMEAttach failed: %d\n", rc);
367 LASSERT(rc == -ENOMEM);
375 md.options = options;
376 md.handler = srpc_data.rpc_lnet_handler;
378 rc = LNetMDAttach(me, &md, LNET_UNLINK, mdh);
380 CERROR("LNetMDAttach failed: %d\n", rc);
381 LASSERT(rc == -ENOMEM);
387 "Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
388 libcfs_id2str(peer), portal, matchbits);
393 srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
394 int options, struct lnet_process_id peer,
395 lnet_nid_t self, struct lnet_handle_md *mdh,
396 struct srpc_event *ev)
404 md.handler = srpc_data.rpc_lnet_handler;
405 md.threshold = ((options & LNET_MD_OP_GET) != 0) ? 2 : 1;
406 md.options = options & ~(LNET_MD_OP_PUT | LNET_MD_OP_GET);
408 rc = LNetMDBind(&md, LNET_UNLINK, mdh);
410 CERROR("LNetMDBind failed: %d\n", rc);
411 LASSERT(rc == -ENOMEM);
415 /* this is kind of an abuse of the LNET_MD_OP_{PUT,GET} options.
416 * they're only meaningful for MDs attached to an ME (i.e. passive
419 if ((options & LNET_MD_OP_PUT) != 0) {
420 rc = LNetPut(self, *mdh, LNET_NOACK_REQ, peer,
421 portal, matchbits, 0, 0);
423 LASSERT((options & LNET_MD_OP_GET) != 0);
425 rc = LNetGet(self, *mdh, peer, portal, matchbits, 0, false);
429 CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
430 ((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
431 libcfs_id2str(peer), portal, matchbits, rc);
433 /* The forthcoming unlink event will complete this operation
434 * with failure, so fall through and return success here.
436 rc = LNetMDUnlink(*mdh);
440 "Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
441 libcfs_id2str(peer), portal, matchbits);
447 srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
448 struct lnet_handle_md *mdh, struct srpc_event *ev)
450 struct lnet_process_id any = {0};
452 any.nid = LNET_NID_ANY;
453 any.pid = LNET_PID_ANY;
455 return srpc_post_passive_rdma(srpc_serv_portal(service),
456 local, service, buf, len,
457 LNET_MD_OP_PUT, any, mdh, ev);
461 srpc_service_post_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf)
462 __must_hold(&scd->scd_lock)
464 struct srpc_service *sv = scd->scd_svc;
465 struct srpc_msg *msg = &buf->buf_msg;
468 LNetInvalidateMDHandle(&buf->buf_mdh);
469 list_add(&buf->buf_list, &scd->scd_buf_posted);
470 scd->scd_buf_nposted++;
471 spin_unlock(&scd->scd_lock);
473 rc = srpc_post_passive_rqtbuf(sv->sv_id,
474 !srpc_serv_is_framework(sv),
475 msg, sizeof(*msg), &buf->buf_mdh,
478 /* At this point, a RPC (new or delayed) may have arrived in
479 * msg and its event handler has been called. So we must add
480 * buf to scd_buf_posted _before_ dropping scd_lock */
482 spin_lock(&scd->scd_lock);
485 if (!sv->sv_shuttingdown)
488 spin_unlock(&scd->scd_lock);
489 /* srpc_shutdown_service might have tried to unlink me
490 * when my buf_mdh was still invalid */
491 LNetMDUnlink(buf->buf_mdh);
492 spin_lock(&scd->scd_lock);
496 scd->scd_buf_nposted--;
497 if (sv->sv_shuttingdown)
498 return rc; /* don't allow to change scd_buf_posted */
500 list_del(&buf->buf_list);
501 spin_unlock(&scd->scd_lock);
503 LIBCFS_FREE(buf, sizeof(*buf));
505 spin_lock(&scd->scd_lock);
510 srpc_add_buffer(struct swi_workitem *wi)
512 struct srpc_service_cd *scd = container_of(wi, struct srpc_service_cd,
514 struct srpc_buffer *buf;
517 /* it's called by workitem scheduler threads, these threads
518 * should have been set CPT affinity, so buffers will be posted
519 * on CPT local list of Portal */
520 spin_lock(&scd->scd_lock);
522 while (scd->scd_buf_adjust > 0 &&
523 !scd->scd_svc->sv_shuttingdown) {
524 scd->scd_buf_adjust--; /* consume it */
525 scd->scd_buf_posting++;
527 spin_unlock(&scd->scd_lock);
529 LIBCFS_ALLOC(buf, sizeof(*buf));
531 CERROR("Failed to add new buf to service: %s\n",
532 scd->scd_svc->sv_name);
533 spin_lock(&scd->scd_lock);
538 spin_lock(&scd->scd_lock);
539 if (scd->scd_svc->sv_shuttingdown) {
540 spin_unlock(&scd->scd_lock);
541 LIBCFS_FREE(buf, sizeof(*buf));
543 spin_lock(&scd->scd_lock);
548 rc = srpc_service_post_buffer(scd, buf);
550 break; /* buf has been freed inside */
552 LASSERT(scd->scd_buf_posting > 0);
553 scd->scd_buf_posting--;
554 scd->scd_buf_total++;
555 scd->scd_buf_low = max(2, scd->scd_buf_total / 4);
559 scd->scd_buf_err_stamp = ktime_get_real_seconds();
560 scd->scd_buf_err = rc;
562 LASSERT(scd->scd_buf_posting > 0);
563 scd->scd_buf_posting--;
566 spin_unlock(&scd->scd_lock);
571 srpc_service_add_buffers(struct srpc_service *sv, int nbuffer)
573 struct srpc_service_cd *scd;
577 LASSERTF(nbuffer > 0, "nbuffer must be positive: %d\n", nbuffer);
579 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
580 spin_lock(&scd->scd_lock);
582 scd->scd_buf_err = 0;
583 scd->scd_buf_err_stamp = 0;
584 scd->scd_buf_posting = 0;
585 scd->scd_buf_adjust = nbuffer;
586 /* start to post buffers */
587 swi_schedule_workitem(&scd->scd_buf_wi);
588 spin_unlock(&scd->scd_lock);
590 /* framework service only post buffer for one partition */
591 if (srpc_serv_is_framework(sv))
595 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
596 spin_lock(&scd->scd_lock);
598 * NB: srpc_service_add_buffers() can be called inside
599 * thread context of lst_sched_serial, and we don't normally
600 * allow to sleep inside thread context of WI scheduler
601 * because it will block current scheduler thread from doing
602 * anything else, even worse, it could deadlock if it's
603 * waiting on result from another WI of the same scheduler.
604 * However, it's safe at here because scd_buf_wi is scheduled
605 * by thread in a different WI scheduler (lst_sched_test),
606 * so we don't have any risk of deadlock, though this could
607 * block all WIs pending on lst_sched_serial for a moment
608 * which is not good but not fatal.
610 lst_wait_until(scd->scd_buf_err != 0 ||
611 (scd->scd_buf_adjust == 0 &&
612 scd->scd_buf_posting == 0),
613 scd->scd_lock, "waiting for adding buffer\n");
615 if (scd->scd_buf_err != 0 && rc == 0)
616 rc = scd->scd_buf_err;
618 spin_unlock(&scd->scd_lock);
625 srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer)
627 struct srpc_service_cd *scd;
631 LASSERT(!sv->sv_shuttingdown);
633 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
634 spin_lock(&scd->scd_lock);
636 num = scd->scd_buf_total + scd->scd_buf_posting;
637 scd->scd_buf_adjust -= min(nbuffer, num);
639 spin_unlock(&scd->scd_lock);
643 /* returns 1 if sv has finished, otherwise 0 */
645 srpc_finish_service(struct srpc_service *sv)
647 struct srpc_service_cd *scd;
648 struct srpc_server_rpc *rpc;
651 LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */
653 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
654 spin_lock(&scd->scd_lock);
655 if (!swi_deschedule_workitem(&scd->scd_buf_wi)) {
656 spin_unlock(&scd->scd_lock);
660 if (scd->scd_buf_nposted > 0) {
661 CDEBUG(D_NET, "waiting for %d posted buffers to unlink\n",
662 scd->scd_buf_nposted);
663 spin_unlock(&scd->scd_lock);
667 if (list_empty(&scd->scd_rpc_active)) {
668 spin_unlock(&scd->scd_lock);
672 rpc = list_entry(scd->scd_rpc_active.next,
673 struct srpc_server_rpc, srpc_list);
674 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",
675 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
676 swi_state2str(rpc->srpc_wi.swi_state),
677 rpc->srpc_wi.swi_workitem.wi_scheduled,
678 rpc->srpc_wi.swi_workitem.wi_running,
679 rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type,
680 rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet);
681 spin_unlock(&scd->scd_lock);
685 /* no lock needed from now on */
686 srpc_service_fini(sv);
690 /* called with sv->sv_lock held */
692 srpc_service_recycle_buffer(struct srpc_service_cd *scd,
693 struct srpc_buffer *buf)
694 __must_hold(&scd->scd_lock)
696 if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) {
697 if (srpc_service_post_buffer(scd, buf) != 0) {
698 CWARN("Failed to post %s buffer\n",
699 scd->scd_svc->sv_name);
704 /* service is shutting down, or we want to recycle some buffers */
705 scd->scd_buf_total--;
707 if (scd->scd_buf_adjust < 0) {
708 scd->scd_buf_adjust++;
709 if (scd->scd_buf_adjust < 0 &&
710 scd->scd_buf_total == 0 && scd->scd_buf_posting == 0) {
712 "Try to recyle %d buffers but nothing left\n",
713 scd->scd_buf_adjust);
714 scd->scd_buf_adjust = 0;
718 spin_unlock(&scd->scd_lock);
719 LIBCFS_FREE(buf, sizeof(*buf));
720 spin_lock(&scd->scd_lock);
724 srpc_abort_service(struct srpc_service *sv)
726 struct srpc_service_cd *scd;
727 struct srpc_server_rpc *rpc;
730 CDEBUG(D_NET, "Aborting service: id %d, name %s\n",
731 sv->sv_id, sv->sv_name);
733 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
734 spin_lock(&scd->scd_lock);
736 /* schedule in-flight RPCs to notice the abort, NB:
737 * racing with incoming RPCs; complete fix should make test
738 * RPCs carry session ID in its headers
740 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list) {
741 rpc->srpc_aborted = 1;
742 swi_schedule_workitem(&rpc->srpc_wi);
745 spin_unlock(&scd->scd_lock);
750 srpc_shutdown_service(struct srpc_service *sv)
752 struct srpc_service_cd *scd;
753 struct srpc_server_rpc *rpc;
754 struct srpc_buffer *buf;
757 CDEBUG(D_NET, "Shutting down service: id %d, name %s\n",
758 sv->sv_id, sv->sv_name);
760 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
761 spin_lock(&scd->scd_lock);
763 sv->sv_shuttingdown = 1; /* i.e. no new active RPC */
765 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
766 spin_unlock(&scd->scd_lock);
768 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
769 spin_lock(&scd->scd_lock);
771 /* schedule in-flight RPCs to notice the shutdown */
772 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list)
773 swi_schedule_workitem(&rpc->srpc_wi);
775 spin_unlock(&scd->scd_lock);
777 /* OK to traverse scd_buf_posted without lock, since no one
778 * touches scd_buf_posted now
780 list_for_each_entry(buf, &scd->scd_buf_posted, buf_list)
781 LNetMDUnlink(buf->buf_mdh);
786 srpc_send_request(struct srpc_client_rpc *rpc)
788 struct srpc_event *ev = &rpc->crpc_reqstev;
793 ev->ev_type = SRPC_REQUEST_SENT;
795 rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service),
796 rpc->crpc_service, &rpc->crpc_reqstmsg,
797 sizeof(struct srpc_msg), LNET_MD_OP_PUT,
798 rpc->crpc_dest, LNET_NID_ANY,
799 &rpc->crpc_reqstmdh, ev);
801 LASSERT(rc == -ENOMEM);
802 ev->ev_fired = 1; /* no more event expected */
808 srpc_prepare_reply(struct srpc_client_rpc *rpc)
810 struct srpc_event *ev = &rpc->crpc_replyev;
811 u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
816 ev->ev_type = SRPC_REPLY_RCVD;
818 *id = srpc_next_id();
820 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
822 sizeof(struct srpc_msg),
823 LNET_MD_OP_PUT, rpc->crpc_dest,
824 &rpc->crpc_replymdh, ev);
826 LASSERT(rc == -ENOMEM);
827 ev->ev_fired = 1; /* no more event expected */
833 srpc_prepare_bulk(struct srpc_client_rpc *rpc)
835 struct srpc_bulk *bk = &rpc->crpc_bulk;
836 struct srpc_event *ev = &rpc->crpc_bulkev;
837 __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid;
841 LASSERT(bk->bk_niov <= LNET_MAX_IOV);
844 if (bk->bk_niov == 0)
847 opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
852 ev->ev_type = SRPC_BULK_REQ_RCVD;
854 *id = srpc_next_id();
856 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
857 &bk->bk_iovs[0], bk->bk_niov, opt,
858 rpc->crpc_dest, &bk->bk_mdh, ev);
860 LASSERT(rc == -ENOMEM);
861 ev->ev_fired = 1; /* no more event expected */
867 srpc_do_bulk(struct srpc_server_rpc *rpc)
869 struct srpc_event *ev = &rpc->srpc_ev;
870 struct srpc_bulk *bk = rpc->srpc_bulk;
871 __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid;
877 opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
882 ev->ev_type = bk->bk_sink ? SRPC_BULK_GET_RPLD : SRPC_BULK_PUT_SENT;
884 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, id,
885 &bk->bk_iovs[0], bk->bk_niov, opt,
886 rpc->srpc_peer, rpc->srpc_self,
889 ev->ev_fired = 1; /* no more event expected */
893 /* only called from srpc_handle_rpc */
895 srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status)
897 struct srpc_service_cd *scd = rpc->srpc_scd;
898 struct srpc_service *sv = scd->scd_svc;
899 struct srpc_buffer *buffer;
901 LASSERT(status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
903 rpc->srpc_status = status;
905 CDEBUG_LIMIT(status == 0 ? D_NET : D_NETERROR,
906 "Server RPC %p done: service %s, peer %s, status %s:%d\n",
907 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
908 swi_state2str(rpc->srpc_wi.swi_state), status);
911 spin_lock(&srpc_data.rpc_glock);
912 srpc_data.rpc_counters.rpcs_dropped++;
913 spin_unlock(&srpc_data.rpc_glock);
916 if (rpc->srpc_done != NULL)
917 (*rpc->srpc_done) (rpc);
918 LASSERT(rpc->srpc_bulk == NULL);
920 spin_lock(&scd->scd_lock);
922 if (rpc->srpc_reqstbuf != NULL) {
923 /* NB might drop sv_lock in srpc_service_recycle_buffer, but
924 * sv won't go away for scd_rpc_active must not be empty
926 srpc_service_recycle_buffer(scd, rpc->srpc_reqstbuf);
927 rpc->srpc_reqstbuf = NULL;
930 list_del(&rpc->srpc_list); /* from scd->scd_rpc_active */
933 * No one can schedule me now since:
934 * - I'm not on scd_rpc_active.
935 * - all LNet events have been fired.
936 * Cancel pending schedules and prevent future schedule attempts:
938 LASSERT(rpc->srpc_ev.ev_fired);
939 swi_exit_workitem(&rpc->srpc_wi);
941 if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) {
942 buffer = list_entry(scd->scd_buf_blocked.next,
943 struct srpc_buffer, buf_list);
944 list_del(&buffer->buf_list);
946 srpc_init_server_rpc(rpc, scd, buffer);
947 list_add_tail(&rpc->srpc_list, &scd->scd_rpc_active);
948 swi_schedule_workitem(&rpc->srpc_wi);
950 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
953 spin_unlock(&scd->scd_lock);
956 /* handles an incoming RPC */
957 static int srpc_handle_rpc(struct swi_workitem *wi)
959 struct srpc_server_rpc *rpc = container_of(wi, struct srpc_server_rpc,
961 struct srpc_service_cd *scd = rpc->srpc_scd;
962 struct srpc_service *sv = scd->scd_svc;
963 struct srpc_event *ev = &rpc->srpc_ev;
966 LASSERT(wi == &rpc->srpc_wi);
968 spin_lock(&scd->scd_lock);
970 if (sv->sv_shuttingdown || rpc->srpc_aborted) {
971 spin_unlock(&scd->scd_lock);
973 if (rpc->srpc_bulk != NULL)
974 LNetMDUnlink(rpc->srpc_bulk->bk_mdh);
975 LNetMDUnlink(rpc->srpc_replymdh);
977 if (ev->ev_fired) { /* no more event, OK to finish */
978 srpc_server_rpc_done(rpc, -ESHUTDOWN);
984 spin_unlock(&scd->scd_lock);
986 switch (wi->swi_state) {
990 case SWI_STATE_NEWBORN: {
991 struct srpc_msg *msg;
992 struct srpc_generic_reply *reply;
994 msg = &rpc->srpc_reqstbuf->buf_msg;
995 reply = &rpc->srpc_replymsg.msg_body.reply;
997 if (msg->msg_magic == 0) {
998 /* moaned already in srpc_lnet_ev_handler */
999 srpc_server_rpc_done(rpc, EBADMSG);
1003 srpc_unpack_msg_hdr(msg);
1004 if (msg->msg_version != SRPC_MSG_VERSION) {
1005 CWARN("Version mismatch: %u, %u expected, from %s\n",
1006 msg->msg_version, SRPC_MSG_VERSION,
1007 libcfs_id2str(rpc->srpc_peer));
1008 reply->status = EPROTO;
1009 /* drop through and send reply */
1012 rc = (*sv->sv_handler)(rpc);
1013 LASSERT(reply->status == 0 || !rpc->srpc_bulk);
1015 srpc_server_rpc_done(rpc, rc);
1020 wi->swi_state = SWI_STATE_BULK_STARTED;
1022 if (rpc->srpc_bulk != NULL) {
1023 rc = srpc_do_bulk(rpc);
1025 return 0; /* wait for bulk */
1027 LASSERT(ev->ev_fired);
1032 case SWI_STATE_BULK_STARTED:
1033 LASSERT(rpc->srpc_bulk == NULL || ev->ev_fired);
1035 if (rpc->srpc_bulk != NULL) {
1038 if (sv->sv_bulk_ready != NULL)
1039 rc = (*sv->sv_bulk_ready) (rpc, rc);
1042 srpc_server_rpc_done(rpc, rc);
1047 wi->swi_state = SWI_STATE_REPLY_SUBMITTED;
1048 rc = srpc_send_reply(rpc);
1050 return 0; /* wait for reply */
1051 srpc_server_rpc_done(rpc, rc);
1054 case SWI_STATE_REPLY_SUBMITTED:
1055 if (!ev->ev_fired) {
1056 CERROR("RPC %p: bulk %p, service %d\n",
1057 rpc, rpc->srpc_bulk, sv->sv_id);
1058 CERROR("Event: status %d, type %d, lnet %d\n",
1059 ev->ev_status, ev->ev_type, ev->ev_lnet);
1060 LASSERT(ev->ev_fired);
1063 wi->swi_state = SWI_STATE_DONE;
1064 srpc_server_rpc_done(rpc, ev->ev_status);
1072 srpc_client_rpc_expired (void *data)
1074 struct srpc_client_rpc *rpc = data;
1076 CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
1077 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1080 spin_lock(&rpc->crpc_lock);
1082 rpc->crpc_timeout = 0;
1083 srpc_abort_rpc(rpc, -ETIMEDOUT);
1085 spin_unlock(&rpc->crpc_lock);
1087 spin_lock(&srpc_data.rpc_glock);
1088 srpc_data.rpc_counters.rpcs_expired++;
1089 spin_unlock(&srpc_data.rpc_glock);
1093 srpc_add_client_rpc_timer(struct srpc_client_rpc *rpc)
1095 struct stt_timer *timer = &rpc->crpc_timer;
1097 if (rpc->crpc_timeout == 0)
1100 INIT_LIST_HEAD(&timer->stt_list);
1101 timer->stt_data = rpc;
1102 timer->stt_func = srpc_client_rpc_expired;
1103 timer->stt_expires = ktime_get_real_seconds() + rpc->crpc_timeout;
1104 stt_add_timer(timer);
1108 * Called with rpc->crpc_lock held.
1110 * Upon exit the RPC expiry timer is not queued and the handler is not
1111 * running on any CPU.
1114 srpc_del_client_rpc_timer(struct srpc_client_rpc *rpc)
1116 /* timer not planted or already exploded */
1117 if (rpc->crpc_timeout == 0)
1120 /* timer successfully defused */
1121 if (stt_del_timer(&rpc->crpc_timer))
1124 /* timer detonated, wait for it to explode */
1125 while (rpc->crpc_timeout != 0) {
1126 spin_unlock(&rpc->crpc_lock);
1130 spin_lock(&rpc->crpc_lock);
1135 srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status)
1137 struct swi_workitem *wi = &rpc->crpc_wi;
1139 LASSERT(status != 0 || wi->swi_state == SWI_STATE_DONE);
1141 spin_lock(&rpc->crpc_lock);
1143 rpc->crpc_closed = 1;
1144 if (rpc->crpc_status == 0)
1145 rpc->crpc_status = status;
1147 srpc_del_client_rpc_timer(rpc);
1149 CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
1150 "Client RPC done: service %d, peer %s, status %s:%d:%d\n",
1151 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1152 swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
1155 * No one can schedule me now since:
1156 * - RPC timer has been defused.
1157 * - all LNet events have been fired.
1158 * - crpc_closed has been set, preventing srpc_abort_rpc from
1160 * Cancel pending schedules and prevent future schedule attempts:
1162 LASSERT(!srpc_event_pending(rpc));
1163 swi_exit_workitem(wi);
1165 spin_unlock(&rpc->crpc_lock);
1167 (*rpc->crpc_done)(rpc);
1170 /* sends an outgoing RPC */
1172 srpc_send_rpc(struct swi_workitem *wi)
1175 struct srpc_client_rpc *rpc;
1176 struct srpc_msg *reply;
1179 LASSERT(wi != NULL);
1181 rpc = container_of(wi, struct srpc_client_rpc, crpc_wi);
1183 LASSERT(rpc != NULL);
1184 LASSERT(wi == &rpc->crpc_wi);
1186 reply = &rpc->crpc_replymsg;
1187 do_bulk = rpc->crpc_bulk.bk_niov > 0;
1189 spin_lock(&rpc->crpc_lock);
1191 if (rpc->crpc_aborted) {
1192 spin_unlock(&rpc->crpc_lock);
1196 spin_unlock(&rpc->crpc_lock);
1198 switch (wi->swi_state) {
1201 case SWI_STATE_NEWBORN:
1202 LASSERT(!srpc_event_pending(rpc));
1204 rc = srpc_prepare_reply(rpc);
1206 srpc_client_rpc_done(rpc, rc);
1210 rc = srpc_prepare_bulk(rpc);
1214 wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
1215 rc = srpc_send_request(rpc);
1218 case SWI_STATE_REQUEST_SUBMITTED:
1219 /* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
1220 * order; however, they're processed in a strict order:
1221 * rqt, rpy, and bulk.
1223 if (!rpc->crpc_reqstev.ev_fired)
1226 rc = rpc->crpc_reqstev.ev_status;
1230 wi->swi_state = SWI_STATE_REQUEST_SENT;
1232 case SWI_STATE_REQUEST_SENT: {
1233 enum srpc_msg_type type;
1235 type = srpc_service2reply(rpc->crpc_service);
1237 if (!rpc->crpc_replyev.ev_fired)
1240 rc = rpc->crpc_replyev.ev_status;
1244 srpc_unpack_msg_hdr(reply);
1245 if (reply->msg_type != type ||
1246 (reply->msg_magic != SRPC_MSG_MAGIC &&
1247 reply->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1248 CWARN("Bad message from %s: type %u (%d expected), magic %u (%d expected).\n",
1249 libcfs_id2str(rpc->crpc_dest),
1250 reply->msg_type, type,
1251 reply->msg_magic, SRPC_MSG_MAGIC);
1256 if (do_bulk && reply->msg_body.reply.status != 0) {
1257 CWARN("Remote error %d at %s, unlink bulk buffer in case peer didn't initiate bulk transfer\n",
1258 reply->msg_body.reply.status,
1259 libcfs_id2str(rpc->crpc_dest));
1260 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1263 wi->swi_state = SWI_STATE_REPLY_RECEIVED;
1266 case SWI_STATE_REPLY_RECEIVED:
1267 if (do_bulk && !rpc->crpc_bulkev.ev_fired)
1270 rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
1272 /* Bulk buffer was unlinked due to remote error. Clear error
1273 * since reply buffer still contains valid data.
1274 * NB rpc->crpc_done shouldn't look into bulk data in case of
1277 if (do_bulk && rpc->crpc_bulkev.ev_lnet == LNET_EVENT_UNLINK &&
1278 rpc->crpc_status == 0 && reply->msg_body.reply.status != 0)
1281 wi->swi_state = SWI_STATE_DONE;
1282 srpc_client_rpc_done(rpc, rc);
1287 spin_lock(&rpc->crpc_lock);
1288 srpc_abort_rpc(rpc, rc);
1289 spin_unlock(&rpc->crpc_lock);
1293 if (rpc->crpc_aborted) {
1294 LNetMDUnlink(rpc->crpc_reqstmdh);
1295 LNetMDUnlink(rpc->crpc_replymdh);
1296 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1298 if (!srpc_event_pending(rpc)) {
1299 srpc_client_rpc_done(rpc, -EINTR);
1306 struct srpc_client_rpc *
1307 srpc_create_client_rpc(struct lnet_process_id peer, int service,
1308 int nbulkiov, int bulklen,
1309 void (*rpc_done)(struct srpc_client_rpc *),
1310 void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
1312 struct srpc_client_rpc *rpc;
1314 LIBCFS_ALLOC(rpc, offsetof(struct srpc_client_rpc,
1315 crpc_bulk.bk_iovs[nbulkiov]));
1319 srpc_init_client_rpc(rpc, peer, service, nbulkiov,
1320 bulklen, rpc_done, rpc_fini, priv);
1324 /* called with rpc->crpc_lock held */
1326 srpc_abort_rpc(struct srpc_client_rpc *rpc, int why)
1330 if (rpc->crpc_aborted || /* already aborted */
1331 rpc->crpc_closed) /* callback imminent */
1335 "Aborting RPC: service %d, peer %s, state %s, why %d\n",
1336 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1337 swi_state2str(rpc->crpc_wi.swi_state), why);
1339 rpc->crpc_aborted = 1;
1340 rpc->crpc_status = why;
1341 swi_schedule_workitem(&rpc->crpc_wi);
1344 /* called with rpc->crpc_lock held */
1346 srpc_post_rpc(struct srpc_client_rpc *rpc)
1348 LASSERT(!rpc->crpc_aborted);
1349 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
1351 CDEBUG(D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
1352 libcfs_id2str(rpc->crpc_dest), rpc->crpc_service,
1355 srpc_add_client_rpc_timer(rpc);
1356 swi_schedule_workitem(&rpc->crpc_wi);
1361 srpc_send_reply(struct srpc_server_rpc *rpc)
1363 struct srpc_event *ev = &rpc->srpc_ev;
1364 struct srpc_msg *msg = &rpc->srpc_replymsg;
1365 struct srpc_buffer *buffer = rpc->srpc_reqstbuf;
1366 struct srpc_service_cd *scd = rpc->srpc_scd;
1367 struct srpc_service *sv = scd->scd_svc;
1371 LASSERT(buffer != NULL);
1372 rpyid = buffer->buf_msg.msg_body.reqst.rpyid;
1374 spin_lock(&scd->scd_lock);
1376 if (!sv->sv_shuttingdown && !srpc_serv_is_framework(sv)) {
1377 /* Repost buffer before replying since test client
1378 * might send me another RPC once it gets the reply
1380 if (srpc_service_post_buffer(scd, buffer) != 0)
1381 CWARN("Failed to repost %s buffer\n", sv->sv_name);
1382 rpc->srpc_reqstbuf = NULL;
1385 spin_unlock(&scd->scd_lock);
1389 ev->ev_type = SRPC_REPLY_SENT;
1391 msg->msg_magic = SRPC_MSG_MAGIC;
1392 msg->msg_version = SRPC_MSG_VERSION;
1393 msg->msg_type = srpc_service2reply(sv->sv_id);
1395 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, rpyid, msg,
1396 sizeof(*msg), LNET_MD_OP_PUT,
1397 rpc->srpc_peer, rpc->srpc_self,
1398 &rpc->srpc_replymdh, ev);
1400 ev->ev_fired = 1; /* no more event expected */
1404 /* when in kernel always called with LNET_LOCK() held, and in thread context */
1406 srpc_lnet_ev_handler(struct lnet_event *ev)
1408 struct srpc_service_cd *scd;
1409 struct srpc_event *rpcev = ev->md_user_ptr;
1410 struct srpc_client_rpc *crpc;
1411 struct srpc_server_rpc *srpc;
1412 struct srpc_buffer *buffer;
1413 struct srpc_service *sv;
1414 struct srpc_msg *msg;
1415 enum srpc_msg_type type;
1417 LASSERT(!in_interrupt());
1419 if (ev->status != 0) {
1422 spin_lock(&srpc_data.rpc_glock);
1423 if (ev->status != -ECANCELED) /* cancellation is not error */
1424 srpc_data.rpc_counters.errors++;
1425 errors = srpc_data.rpc_counters.errors;
1426 spin_unlock(&srpc_data.rpc_glock);
1428 CNETERR("LNet event status %d type %d, RPC errors %u\n",
1429 ev->status, ev->type, errors);
1432 rpcev->ev_lnet = ev->type;
1434 switch (rpcev->ev_type) {
1436 CERROR("Unknown event: status %d, type %d, lnet %d\n",
1437 rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
1440 case SRPC_REQUEST_SENT:
1441 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1442 spin_lock(&srpc_data.rpc_glock);
1443 srpc_data.rpc_counters.rpcs_sent++;
1444 spin_unlock(&srpc_data.rpc_glock);
1447 case SRPC_REPLY_RCVD:
1448 case SRPC_BULK_REQ_RCVD:
1449 crpc = rpcev->ev_data;
1451 if (rpcev != &crpc->crpc_reqstev &&
1452 rpcev != &crpc->crpc_replyev &&
1453 rpcev != &crpc->crpc_bulkev) {
1454 CERROR("rpcev %p, crpc %p, reqstev %p, replyev %p, bulkev %p\n",
1455 rpcev, crpc, &crpc->crpc_reqstev,
1456 &crpc->crpc_replyev, &crpc->crpc_bulkev);
1457 CERROR("Bad event: status %d, type %d, lnet %d\n",
1458 rpcev->ev_status, rpcev->ev_type,
1463 spin_lock(&crpc->crpc_lock);
1465 LASSERT(rpcev->ev_fired == 0);
1466 rpcev->ev_fired = 1;
1467 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1468 -EINTR : ev->status;
1469 swi_schedule_workitem(&crpc->crpc_wi);
1471 spin_unlock(&crpc->crpc_lock);
1474 case SRPC_REQUEST_RCVD:
1475 scd = rpcev->ev_data;
1478 LASSERT(rpcev == &scd->scd_ev);
1480 spin_lock(&scd->scd_lock);
1482 LASSERT(ev->unlinked);
1483 LASSERT(ev->type == LNET_EVENT_PUT ||
1484 ev->type == LNET_EVENT_UNLINK);
1485 LASSERT(ev->type != LNET_EVENT_UNLINK ||
1486 sv->sv_shuttingdown);
1488 buffer = container_of(ev->md_start, struct srpc_buffer,
1490 buffer->buf_peer = ev->source;
1491 buffer->buf_self = ev->target.nid;
1493 LASSERT(scd->scd_buf_nposted > 0);
1494 scd->scd_buf_nposted--;
1496 if (sv->sv_shuttingdown) {
1497 /* Leave buffer on scd->scd_buf_nposted since
1498 * srpc_finish_service needs to traverse it.
1500 spin_unlock(&scd->scd_lock);
1504 if (scd->scd_buf_err_stamp != 0 &&
1505 scd->scd_buf_err_stamp < ktime_get_real_seconds()) {
1506 /* re-enable adding buffer */
1507 scd->scd_buf_err_stamp = 0;
1508 scd->scd_buf_err = 0;
1511 if (scd->scd_buf_err == 0 && /* adding buffer is enabled */
1512 scd->scd_buf_adjust == 0 &&
1513 scd->scd_buf_nposted < scd->scd_buf_low) {
1514 scd->scd_buf_adjust = max(scd->scd_buf_total / 2,
1516 swi_schedule_workitem(&scd->scd_buf_wi);
1519 list_del(&buffer->buf_list); /* from scd->scd_buf_posted */
1520 msg = &buffer->buf_msg;
1521 type = srpc_service2request(sv->sv_id);
1523 if (ev->status != 0 || ev->mlength != sizeof(*msg) ||
1524 (msg->msg_type != type &&
1525 msg->msg_type != __swab32(type)) ||
1526 (msg->msg_magic != SRPC_MSG_MAGIC &&
1527 msg->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1528 CERROR("Dropping RPC (%s) from %s: status %d mlength %d type %u magic %u.\n",
1529 sv->sv_name, libcfs_id2str(ev->initiator),
1530 ev->status, ev->mlength,
1531 msg->msg_type, msg->msg_magic);
1533 /* NB can't call srpc_service_recycle_buffer here since
1534 * it may call LNetM[DE]Attach. The invalid magic tells
1535 * srpc_handle_rpc to drop this RPC
1540 if (!list_empty(&scd->scd_rpc_free)) {
1541 srpc = list_entry(scd->scd_rpc_free.next,
1542 struct srpc_server_rpc,
1544 list_del(&srpc->srpc_list);
1546 srpc_init_server_rpc(srpc, scd, buffer);
1547 list_add_tail(&srpc->srpc_list,
1548 &scd->scd_rpc_active);
1549 swi_schedule_workitem(&srpc->srpc_wi);
1551 list_add_tail(&buffer->buf_list,
1552 &scd->scd_buf_blocked);
1555 spin_unlock(&scd->scd_lock);
1557 spin_lock(&srpc_data.rpc_glock);
1558 srpc_data.rpc_counters.rpcs_rcvd++;
1559 spin_unlock(&srpc_data.rpc_glock);
1562 case SRPC_BULK_GET_RPLD:
1563 LASSERT(ev->type == LNET_EVENT_SEND ||
1564 ev->type == LNET_EVENT_REPLY ||
1565 ev->type == LNET_EVENT_UNLINK);
1568 break; /* wait for final event */
1570 case SRPC_BULK_PUT_SENT:
1571 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1572 spin_lock(&srpc_data.rpc_glock);
1574 if (rpcev->ev_type == SRPC_BULK_GET_RPLD)
1575 srpc_data.rpc_counters.bulk_get += ev->mlength;
1577 srpc_data.rpc_counters.bulk_put += ev->mlength;
1579 spin_unlock(&srpc_data.rpc_glock);
1582 case SRPC_REPLY_SENT:
1583 srpc = rpcev->ev_data;
1584 scd = srpc->srpc_scd;
1586 LASSERT(rpcev == &srpc->srpc_ev);
1588 spin_lock(&scd->scd_lock);
1590 rpcev->ev_fired = 1;
1591 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1592 -EINTR : ev->status;
1593 swi_schedule_workitem(&srpc->srpc_wi);
1595 spin_unlock(&scd->scd_lock);
1606 memset(&srpc_data, 0, sizeof(struct smoketest_rpc));
1607 spin_lock_init(&srpc_data.rpc_glock);
1609 /* 1 second pause to avoid timestamp reuse */
1610 schedule_timeout_uninterruptible(cfs_time_seconds(1));
1611 srpc_data.rpc_matchbits = ((__u64) ktime_get_real_seconds()) << 48;
1613 srpc_data.rpc_state = SRPC_STATE_NONE;
1615 rc = LNetNIInit(LNET_PID_LUSTRE);
1617 CERROR("LNetNIInit() has failed: %d\n", rc);
1621 srpc_data.rpc_state = SRPC_STATE_NI_INIT;
1623 srpc_data.rpc_lnet_handler = srpc_lnet_ev_handler;
1625 rc = LNetSetLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1627 rc = LNetSetLazyPortal(SRPC_REQUEST_PORTAL);
1630 srpc_data.rpc_state = SRPC_STATE_EQ_INIT;
1637 srpc_data.rpc_state = SRPC_STATE_RUNNING;
1643 srpc_shutdown (void)
1649 state = srpc_data.rpc_state;
1650 srpc_data.rpc_state = SRPC_STATE_STOPPING;
1656 case SRPC_STATE_RUNNING:
1657 spin_lock(&srpc_data.rpc_glock);
1659 for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) {
1660 struct srpc_service *sv = srpc_data.rpc_services[i];
1662 LASSERTF(sv == NULL,
1663 "service not empty: id %d, name %s\n",
1667 spin_unlock(&srpc_data.rpc_glock);
1672 case SRPC_STATE_EQ_INIT:
1673 rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1674 rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
1676 lnet_assert_handler_unused(srpc_data.rpc_lnet_handler);
1679 case SRPC_STATE_NI_INIT: