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
67 static struct smoketest_rpc {
68 spinlock_t rpc_glock; /* global lock */
69 struct srpc_service *rpc_services[SRPC_SERVICE_MAX_ID + 1];
70 lnet_handler_t rpc_lnet_handler;/* _the_ LNet event handler */
71 enum srpc_state rpc_state;
72 atomic_t rpc_counters32[SRPC_COUNTER32_MAX];
73 atomic64_t rpc_counters64[SRPC_COUNTER64_MAX];
74 atomic64_t rpc_matchbits; /* matchbits counter */
78 #define RPC_STAT32(a) \
79 srpc_data.rpc_counters32[(a)]
81 #define GET_RPC_STAT32(a) \
82 atomic_read(&srpc_data.rpc_counters32[(a)])
84 #define GET_RPC_STAT64(a) \
85 atomic64_read(&srpc_data.rpc_counters64[(a)])
88 srpc_serv_portal(int svc_id)
90 return svc_id < SRPC_FRAMEWORK_SERVICE_MAX_ID ?
91 SRPC_FRAMEWORK_REQUEST_PORTAL : SRPC_REQUEST_PORTAL;
95 static int srpc_handle_rpc(struct swi_workitem *wi);
98 void srpc_get_counters(struct srpc_counters *cnt)
100 cnt->errors = GET_RPC_STAT32(SRPC_ERROR);
101 cnt->rpcs_sent = GET_RPC_STAT32(SRPC_RPC_SENT);
102 cnt->rpcs_rcvd = GET_RPC_STAT32(SRPC_RPC_RCVD);
103 cnt->rpcs_dropped = GET_RPC_STAT32(SRPC_RPC_DROP);
104 cnt->rpcs_expired = GET_RPC_STAT32(SRPC_RPC_EXPIRED);
106 cnt->bulk_get = GET_RPC_STAT64(SRPC_BULK_GET);
107 cnt->bulk_put = GET_RPC_STAT64(SRPC_BULK_PUT);
111 srpc_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i, int off,
114 LASSERT(off < PAGE_SIZE);
115 LASSERT(nob > 0 && nob <= PAGE_SIZE);
117 bk->bk_iovs[i].bv_offset = off;
118 bk->bk_iovs[i].bv_page = pg;
119 bk->bk_iovs[i].bv_len = nob;
124 srpc_free_bulk(struct srpc_bulk *bk)
131 for (i = 0; i < bk->bk_niov; i++) {
132 pg = bk->bk_iovs[i].bv_page;
139 LIBCFS_FREE(bk, offsetof(struct srpc_bulk, bk_iovs[bk->bk_niov]));
143 srpc_alloc_bulk(int cpt, unsigned bulk_off, unsigned bulk_npg,
144 unsigned bulk_len, int sink)
146 struct srpc_bulk *bk;
149 LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV);
151 LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt,
152 offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
154 CERROR("Can't allocate descriptor for %d pages\n", bulk_npg);
158 memset(bk, 0, offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
160 bk->bk_len = bulk_len;
161 bk->bk_niov = bulk_npg;
163 for (i = 0; i < bulk_npg; i++) {
167 pg = cfs_page_cpt_alloc(lnet_cpt_table(), cpt, GFP_KERNEL);
169 CERROR("Can't allocate page %d of %d\n", i, bulk_npg);
174 nob = min_t(unsigned, bulk_off + bulk_len, PAGE_SIZE) -
177 srpc_add_bulk_page(bk, pg, i, bulk_off, nob);
188 return atomic64_inc_return(&srpc_data.rpc_matchbits);
192 srpc_init_server_rpc(struct srpc_server_rpc *rpc,
193 struct srpc_service_cd *scd,
194 struct srpc_buffer *buffer)
196 memset(rpc, 0, sizeof(*rpc));
197 swi_init_workitem(&rpc->srpc_wi, srpc_handle_rpc,
198 srpc_serv_is_framework(scd->scd_svc) ?
199 lst_sched_serial : lst_sched_test[scd->scd_cpt]);
201 rpc->srpc_ev.ev_fired = 1; /* no event expected now */
204 rpc->srpc_reqstbuf = buffer;
205 rpc->srpc_peer = buffer->buf_peer;
206 rpc->srpc_self = buffer->buf_self;
207 LNetInvalidateMDHandle(&rpc->srpc_replymdh);
211 srpc_service_fini(struct srpc_service *svc)
213 struct srpc_service_cd *scd;
214 struct srpc_server_rpc *rpc;
215 struct srpc_buffer *buf;
219 if (svc->sv_cpt_data == NULL)
222 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
224 if (!list_empty(&scd->scd_buf_posted))
225 q = &scd->scd_buf_posted;
226 else if (!list_empty(&scd->scd_buf_blocked))
227 q = &scd->scd_buf_blocked;
231 while (!list_empty(q)) {
232 buf = list_entry(q->next,
235 list_del(&buf->buf_list);
236 LIBCFS_FREE(buf, sizeof(*buf));
240 LASSERT(list_empty(&scd->scd_rpc_active));
242 while (!list_empty(&scd->scd_rpc_free)) {
243 rpc = list_entry(scd->scd_rpc_free.next,
244 struct srpc_server_rpc,
246 list_del(&rpc->srpc_list);
247 LIBCFS_FREE(rpc, sizeof(*rpc));
251 cfs_percpt_free(svc->sv_cpt_data);
252 svc->sv_cpt_data = NULL;
256 srpc_service_nrpcs(struct srpc_service *svc)
258 int nrpcs = svc->sv_wi_total / svc->sv_ncpts;
260 return srpc_serv_is_framework(svc) ?
261 max(nrpcs, SFW_FRWK_WI_MIN) : max(nrpcs, SFW_TEST_WI_MIN);
264 int srpc_add_buffer(struct swi_workitem *wi);
267 srpc_service_init(struct srpc_service *svc)
269 struct srpc_service_cd *scd;
270 struct srpc_server_rpc *rpc;
275 svc->sv_shuttingdown = 0;
277 svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
278 sizeof(struct srpc_service_cd));
279 if (svc->sv_cpt_data == NULL)
282 svc->sv_ncpts = srpc_serv_is_framework(svc) ?
283 1 : cfs_cpt_number(lnet_cpt_table());
284 nrpcs = srpc_service_nrpcs(svc);
286 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
289 spin_lock_init(&scd->scd_lock);
290 INIT_LIST_HEAD(&scd->scd_rpc_free);
291 INIT_LIST_HEAD(&scd->scd_rpc_active);
292 INIT_LIST_HEAD(&scd->scd_buf_posted);
293 INIT_LIST_HEAD(&scd->scd_buf_blocked);
295 scd->scd_ev.ev_data = scd;
296 scd->scd_ev.ev_type = SRPC_REQUEST_RCVD;
298 /* NB: don't use lst_sched_serial for adding buffer,
299 * see details in srpc_service_add_buffers() */
300 swi_init_workitem(&scd->scd_buf_wi,
301 srpc_add_buffer, lst_sched_test[i]);
303 if (i != 0 && srpc_serv_is_framework(svc)) {
304 /* NB: framework service only needs srpc_service_cd for
305 * one partition, but we allocate for all to make
306 * it easier to implement, it will waste a little
307 * memory but nobody should care about this */
311 for (j = 0; j < nrpcs; j++) {
312 LIBCFS_CPT_ALLOC(rpc, lnet_cpt_table(),
315 srpc_service_fini(svc);
318 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
326 srpc_add_service(struct srpc_service *sv)
330 LASSERT(0 <= id && id <= SRPC_SERVICE_MAX_ID);
332 if (srpc_service_init(sv) != 0)
335 spin_lock(&srpc_data.rpc_glock);
337 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
339 if (srpc_data.rpc_services[id] != NULL) {
340 spin_unlock(&srpc_data.rpc_glock);
344 srpc_data.rpc_services[id] = sv;
345 spin_unlock(&srpc_data.rpc_glock);
347 CDEBUG(D_NET, "Adding service: id %d, name %s\n", id, sv->sv_name);
351 srpc_service_fini(sv);
356 srpc_remove_service(struct srpc_service *sv)
360 spin_lock(&srpc_data.rpc_glock);
362 if (srpc_data.rpc_services[id] != sv) {
363 spin_unlock(&srpc_data.rpc_glock);
367 srpc_data.rpc_services[id] = NULL;
368 spin_unlock(&srpc_data.rpc_glock);
373 srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
374 int len, int options, struct lnet_process_id peer4,
375 struct lnet_handle_md *mdh, struct srpc_event *ev)
380 struct lnet_processid peer;
382 peer.pid = peer4.pid;
383 lnet_nid4_to_nid(peer4.nid, &peer.nid);
385 me = LNetMEAttach(portal, &peer, matchbits, 0, LNET_UNLINK,
386 local ? LNET_INS_LOCAL : LNET_INS_AFTER);
389 CERROR("LNetMEAttach failed: %d\n", rc);
390 LASSERT(rc == -ENOMEM);
398 md.options = options;
399 md.handler = srpc_data.rpc_lnet_handler;
401 rc = LNetMDAttach(me, &md, LNET_UNLINK, mdh);
403 CERROR("LNetMDAttach failed: %d\n", rc);
404 LASSERT(rc == -ENOMEM);
410 "Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
411 libcfs_id2str(peer4), portal, matchbits);
416 srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
417 int options, struct lnet_process_id peer4,
418 lnet_nid_t self4, struct lnet_handle_md *mdh,
419 struct srpc_event *ev)
423 struct lnet_nid self;
424 struct lnet_processid peer;
426 lnet_nid4_to_nid(self4, &self);
427 lnet_pid4_to_pid(peer4, &peer);
432 md.handler = srpc_data.rpc_lnet_handler;
433 md.threshold = ((options & LNET_MD_OP_GET) != 0) ? 2 : 1;
434 md.options = options & ~(LNET_MD_OP_PUT | LNET_MD_OP_GET);
436 rc = LNetMDBind(&md, LNET_UNLINK, mdh);
438 CERROR("LNetMDBind failed: %d\n", rc);
439 LASSERT(rc == -ENOMEM);
443 /* this is kind of an abuse of the LNET_MD_OP_{PUT,GET} options.
444 * they're only meaningful for MDs attached to an ME (i.e. passive
447 if ((options & LNET_MD_OP_PUT) != 0) {
448 rc = LNetPut(&self, *mdh, LNET_NOACK_REQ, &peer,
449 portal, matchbits, 0, 0);
451 LASSERT((options & LNET_MD_OP_GET) != 0);
453 rc = LNetGet(&self, *mdh, &peer, portal, matchbits, 0, false);
457 CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
458 ((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
459 libcfs_id2str(peer4), portal, matchbits, rc);
461 /* The forthcoming unlink event will complete this operation
462 * with failure, so fall through and return success here.
464 rc = LNetMDUnlink(*mdh);
468 "Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
469 libcfs_id2str(peer4), portal, matchbits);
475 srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
476 struct lnet_handle_md *mdh, struct srpc_event *ev)
478 struct lnet_process_id any = {0};
480 any.nid = LNET_NID_ANY;
481 any.pid = LNET_PID_ANY;
483 return srpc_post_passive_rdma(srpc_serv_portal(service),
484 local, service, buf, len,
485 LNET_MD_OP_PUT, any, mdh, ev);
489 srpc_service_post_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf)
490 __must_hold(&scd->scd_lock)
492 struct srpc_service *sv = scd->scd_svc;
493 struct srpc_msg *msg = &buf->buf_msg;
496 LNetInvalidateMDHandle(&buf->buf_mdh);
497 list_add(&buf->buf_list, &scd->scd_buf_posted);
498 scd->scd_buf_nposted++;
499 spin_unlock(&scd->scd_lock);
501 rc = srpc_post_passive_rqtbuf(sv->sv_id,
502 !srpc_serv_is_framework(sv),
503 msg, sizeof(*msg), &buf->buf_mdh,
506 /* At this point, a RPC (new or delayed) may have arrived in
507 * msg and its event handler has been called. So we must add
508 * buf to scd_buf_posted _before_ dropping scd_lock */
510 spin_lock(&scd->scd_lock);
513 if (!sv->sv_shuttingdown)
516 spin_unlock(&scd->scd_lock);
517 /* srpc_shutdown_service might have tried to unlink me
518 * when my buf_mdh was still invalid */
519 LNetMDUnlink(buf->buf_mdh);
520 spin_lock(&scd->scd_lock);
524 scd->scd_buf_nposted--;
525 if (sv->sv_shuttingdown)
526 return rc; /* don't allow to change scd_buf_posted */
528 list_del(&buf->buf_list);
529 spin_unlock(&scd->scd_lock);
531 LIBCFS_FREE(buf, sizeof(*buf));
533 spin_lock(&scd->scd_lock);
538 srpc_add_buffer(struct swi_workitem *wi)
540 struct srpc_service_cd *scd = container_of(wi, struct srpc_service_cd,
542 struct srpc_buffer *buf;
545 /* it's called by workitem scheduler threads, these threads
546 * should have been set CPT affinity, so buffers will be posted
547 * on CPT local list of Portal */
548 spin_lock(&scd->scd_lock);
550 while (scd->scd_buf_adjust > 0 &&
551 !scd->scd_svc->sv_shuttingdown) {
552 scd->scd_buf_adjust--; /* consume it */
553 scd->scd_buf_posting++;
555 spin_unlock(&scd->scd_lock);
557 LIBCFS_ALLOC(buf, sizeof(*buf));
559 CERROR("Failed to add new buf to service: %s\n",
560 scd->scd_svc->sv_name);
561 spin_lock(&scd->scd_lock);
566 spin_lock(&scd->scd_lock);
567 if (scd->scd_svc->sv_shuttingdown) {
568 spin_unlock(&scd->scd_lock);
569 LIBCFS_FREE(buf, sizeof(*buf));
571 spin_lock(&scd->scd_lock);
576 rc = srpc_service_post_buffer(scd, buf);
578 break; /* buf has been freed inside */
580 LASSERT(scd->scd_buf_posting > 0);
581 scd->scd_buf_posting--;
582 scd->scd_buf_total++;
583 scd->scd_buf_low = max(2, scd->scd_buf_total / 4);
587 scd->scd_buf_err_stamp = ktime_get_real_seconds();
588 scd->scd_buf_err = rc;
590 LASSERT(scd->scd_buf_posting > 0);
591 scd->scd_buf_posting--;
594 spin_unlock(&scd->scd_lock);
599 srpc_service_add_buffers(struct srpc_service *sv, int nbuffer)
601 struct srpc_service_cd *scd;
605 LASSERTF(nbuffer > 0, "nbuffer must be positive: %d\n", nbuffer);
607 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
608 spin_lock(&scd->scd_lock);
610 scd->scd_buf_err = 0;
611 scd->scd_buf_err_stamp = 0;
612 scd->scd_buf_posting = 0;
613 scd->scd_buf_adjust = nbuffer;
614 /* start to post buffers */
615 swi_schedule_workitem(&scd->scd_buf_wi);
616 spin_unlock(&scd->scd_lock);
618 /* framework service only post buffer for one partition */
619 if (srpc_serv_is_framework(sv))
623 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
624 spin_lock(&scd->scd_lock);
626 * NB: srpc_service_add_buffers() can be called inside
627 * thread context of lst_sched_serial, and we don't normally
628 * allow to sleep inside thread context of WI scheduler
629 * because it will block current scheduler thread from doing
630 * anything else, even worse, it could deadlock if it's
631 * waiting on result from another WI of the same scheduler.
632 * However, it's safe at here because scd_buf_wi is scheduled
633 * by thread in a different WI scheduler (lst_sched_test),
634 * so we don't have any risk of deadlock, though this could
635 * block all WIs pending on lst_sched_serial for a moment
636 * which is not good but not fatal.
638 lst_wait_until(scd->scd_buf_err != 0 ||
639 (scd->scd_buf_adjust == 0 &&
640 scd->scd_buf_posting == 0),
641 scd->scd_lock, "waiting for adding buffer\n");
643 if (scd->scd_buf_err != 0 && rc == 0)
644 rc = scd->scd_buf_err;
646 spin_unlock(&scd->scd_lock);
653 srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer)
655 struct srpc_service_cd *scd;
659 LASSERT(!sv->sv_shuttingdown);
661 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
662 spin_lock(&scd->scd_lock);
664 num = scd->scd_buf_total + scd->scd_buf_posting;
665 scd->scd_buf_adjust -= min(nbuffer, num);
667 spin_unlock(&scd->scd_lock);
671 /* returns 1 if sv has finished, otherwise 0 */
673 srpc_finish_service(struct srpc_service *sv)
675 struct srpc_service_cd *scd;
676 struct srpc_server_rpc *rpc;
679 LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */
681 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
682 spin_lock(&scd->scd_lock);
683 if (!swi_deschedule_workitem(&scd->scd_buf_wi)) {
684 spin_unlock(&scd->scd_lock);
688 if (scd->scd_buf_nposted > 0) {
689 CDEBUG(D_NET, "waiting for %d posted buffers to unlink\n",
690 scd->scd_buf_nposted);
691 spin_unlock(&scd->scd_lock);
695 if (list_empty(&scd->scd_rpc_active)) {
696 spin_unlock(&scd->scd_lock);
700 rpc = list_entry(scd->scd_rpc_active.next,
701 struct srpc_server_rpc, srpc_list);
702 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",
703 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
704 swi_state2str(rpc->srpc_wi.swi_state),
705 rpc->srpc_wi.swi_workitem.wi_scheduled,
706 rpc->srpc_wi.swi_workitem.wi_running,
707 rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type,
708 rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet);
709 spin_unlock(&scd->scd_lock);
713 /* no lock needed from now on */
714 srpc_service_fini(sv);
718 /* called with sv->sv_lock held */
720 srpc_service_recycle_buffer(struct srpc_service_cd *scd,
721 struct srpc_buffer *buf)
722 __must_hold(&scd->scd_lock)
724 if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) {
725 if (srpc_service_post_buffer(scd, buf) != 0) {
726 CWARN("Failed to post %s buffer\n",
727 scd->scd_svc->sv_name);
732 /* service is shutting down, or we want to recycle some buffers */
733 scd->scd_buf_total--;
735 if (scd->scd_buf_adjust < 0) {
736 scd->scd_buf_adjust++;
737 if (scd->scd_buf_adjust < 0 &&
738 scd->scd_buf_total == 0 && scd->scd_buf_posting == 0) {
740 "Try to recyle %d buffers but nothing left\n",
741 scd->scd_buf_adjust);
742 scd->scd_buf_adjust = 0;
746 spin_unlock(&scd->scd_lock);
747 LIBCFS_FREE(buf, sizeof(*buf));
748 spin_lock(&scd->scd_lock);
752 srpc_abort_service(struct srpc_service *sv)
754 struct srpc_service_cd *scd;
755 struct srpc_server_rpc *rpc;
758 CDEBUG(D_NET, "Aborting service: id %d, name %s\n",
759 sv->sv_id, sv->sv_name);
761 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
762 spin_lock(&scd->scd_lock);
764 /* schedule in-flight RPCs to notice the abort, NB:
765 * racing with incoming RPCs; complete fix should make test
766 * RPCs carry session ID in its headers
768 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list) {
769 rpc->srpc_aborted = 1;
770 swi_schedule_workitem(&rpc->srpc_wi);
773 spin_unlock(&scd->scd_lock);
778 srpc_shutdown_service(struct srpc_service *sv)
780 struct srpc_service_cd *scd;
781 struct srpc_server_rpc *rpc;
782 struct srpc_buffer *buf;
785 CDEBUG(D_NET, "Shutting down service: id %d, name %s\n",
786 sv->sv_id, sv->sv_name);
788 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
789 spin_lock(&scd->scd_lock);
791 sv->sv_shuttingdown = 1; /* i.e. no new active RPC */
793 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
794 spin_unlock(&scd->scd_lock);
796 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
797 spin_lock(&scd->scd_lock);
799 /* schedule in-flight RPCs to notice the shutdown */
800 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list)
801 swi_schedule_workitem(&rpc->srpc_wi);
803 spin_unlock(&scd->scd_lock);
805 /* OK to traverse scd_buf_posted without lock, since no one
806 * touches scd_buf_posted now
808 list_for_each_entry(buf, &scd->scd_buf_posted, buf_list)
809 LNetMDUnlink(buf->buf_mdh);
814 srpc_send_request(struct srpc_client_rpc *rpc)
816 struct srpc_event *ev = &rpc->crpc_reqstev;
821 ev->ev_type = SRPC_REQUEST_SENT;
823 rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service),
824 rpc->crpc_service, &rpc->crpc_reqstmsg,
825 sizeof(struct srpc_msg), LNET_MD_OP_PUT,
826 rpc->crpc_dest, LNET_NID_ANY,
827 &rpc->crpc_reqstmdh, ev);
829 LASSERT(rc == -ENOMEM);
830 ev->ev_fired = 1; /* no more event expected */
836 srpc_prepare_reply(struct srpc_client_rpc *rpc)
838 struct srpc_event *ev = &rpc->crpc_replyev;
839 u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
844 ev->ev_type = SRPC_REPLY_RCVD;
846 *id = srpc_next_id();
848 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
850 sizeof(struct srpc_msg),
851 LNET_MD_OP_PUT, rpc->crpc_dest,
852 &rpc->crpc_replymdh, ev);
854 LASSERT(rc == -ENOMEM);
855 ev->ev_fired = 1; /* no more event expected */
861 srpc_prepare_bulk(struct srpc_client_rpc *rpc)
863 struct srpc_bulk *bk = &rpc->crpc_bulk;
864 struct srpc_event *ev = &rpc->crpc_bulkev;
865 __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid;
869 LASSERT(bk->bk_niov <= LNET_MAX_IOV);
872 if (bk->bk_niov == 0)
875 opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
880 ev->ev_type = SRPC_BULK_REQ_RCVD;
882 *id = srpc_next_id();
884 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
885 &bk->bk_iovs[0], bk->bk_niov, opt,
886 rpc->crpc_dest, &bk->bk_mdh, ev);
888 LASSERT(rc == -ENOMEM);
889 ev->ev_fired = 1; /* no more event expected */
895 srpc_do_bulk(struct srpc_server_rpc *rpc)
897 struct srpc_event *ev = &rpc->srpc_ev;
898 struct srpc_bulk *bk = rpc->srpc_bulk;
899 __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid;
905 opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
910 ev->ev_type = bk->bk_sink ? SRPC_BULK_GET_RPLD : SRPC_BULK_PUT_SENT;
912 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, id,
913 &bk->bk_iovs[0], bk->bk_niov, opt,
914 rpc->srpc_peer, rpc->srpc_self,
917 ev->ev_fired = 1; /* no more event expected */
921 /* only called from srpc_handle_rpc */
923 srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status)
925 struct srpc_service_cd *scd = rpc->srpc_scd;
926 struct srpc_service *sv = scd->scd_svc;
927 struct srpc_buffer *buffer;
929 LASSERT(status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
931 rpc->srpc_status = status;
933 CDEBUG_LIMIT(status == 0 ? D_NET : D_NETERROR,
934 "Server RPC %p done: service %s, peer %s, status %s:%d\n",
935 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
936 swi_state2str(rpc->srpc_wi.swi_state), status);
939 atomic_inc(&RPC_STAT32(SRPC_RPC_DROP));
941 if (rpc->srpc_done != NULL)
942 (*rpc->srpc_done) (rpc);
943 LASSERT(rpc->srpc_bulk == NULL);
945 spin_lock(&scd->scd_lock);
947 if (rpc->srpc_reqstbuf != NULL) {
948 /* NB might drop sv_lock in srpc_service_recycle_buffer, but
949 * sv won't go away for scd_rpc_active must not be empty
951 srpc_service_recycle_buffer(scd, rpc->srpc_reqstbuf);
952 rpc->srpc_reqstbuf = NULL;
955 list_del(&rpc->srpc_list); /* from scd->scd_rpc_active */
958 * No one can schedule me now since:
959 * - I'm not on scd_rpc_active.
960 * - all LNet events have been fired.
961 * Cancel pending schedules and prevent future schedule attempts:
963 LASSERT(rpc->srpc_ev.ev_fired);
964 swi_exit_workitem(&rpc->srpc_wi);
966 if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) {
967 buffer = list_entry(scd->scd_buf_blocked.next,
968 struct srpc_buffer, buf_list);
969 list_del(&buffer->buf_list);
971 srpc_init_server_rpc(rpc, scd, buffer);
972 list_add_tail(&rpc->srpc_list, &scd->scd_rpc_active);
973 swi_schedule_workitem(&rpc->srpc_wi);
975 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
978 spin_unlock(&scd->scd_lock);
981 /* handles an incoming RPC */
982 static int srpc_handle_rpc(struct swi_workitem *wi)
984 struct srpc_server_rpc *rpc = container_of(wi, struct srpc_server_rpc,
986 struct srpc_service_cd *scd = rpc->srpc_scd;
987 struct srpc_service *sv = scd->scd_svc;
988 struct srpc_event *ev = &rpc->srpc_ev;
991 LASSERT(wi == &rpc->srpc_wi);
993 spin_lock(&scd->scd_lock);
995 if (sv->sv_shuttingdown || rpc->srpc_aborted) {
996 spin_unlock(&scd->scd_lock);
998 if (rpc->srpc_bulk != NULL)
999 LNetMDUnlink(rpc->srpc_bulk->bk_mdh);
1000 LNetMDUnlink(rpc->srpc_replymdh);
1002 if (ev->ev_fired) { /* no more event, OK to finish */
1003 srpc_server_rpc_done(rpc, -ESHUTDOWN);
1009 spin_unlock(&scd->scd_lock);
1011 switch (wi->swi_state) {
1015 case SWI_STATE_NEWBORN: {
1016 struct srpc_msg *msg;
1017 struct srpc_generic_reply *reply;
1019 msg = &rpc->srpc_reqstbuf->buf_msg;
1020 reply = &rpc->srpc_replymsg.msg_body.reply;
1022 if (msg->msg_magic == 0) {
1023 /* moaned already in srpc_lnet_ev_handler */
1024 srpc_server_rpc_done(rpc, EBADMSG);
1028 srpc_unpack_msg_hdr(msg);
1029 if (msg->msg_version != SRPC_MSG_VERSION) {
1030 CWARN("Version mismatch: %u, %u expected, from %s\n",
1031 msg->msg_version, SRPC_MSG_VERSION,
1032 libcfs_id2str(rpc->srpc_peer));
1033 reply->status = EPROTO;
1034 /* drop through and send reply */
1037 rc = (*sv->sv_handler)(rpc);
1038 LASSERT(reply->status == 0 || !rpc->srpc_bulk);
1040 srpc_server_rpc_done(rpc, rc);
1045 wi->swi_state = SWI_STATE_BULK_STARTED;
1047 if (rpc->srpc_bulk != NULL) {
1048 rc = srpc_do_bulk(rpc);
1050 return 0; /* wait for bulk */
1052 LASSERT(ev->ev_fired);
1057 case SWI_STATE_BULK_STARTED:
1058 LASSERT(rpc->srpc_bulk == NULL || ev->ev_fired);
1060 if (rpc->srpc_bulk != NULL) {
1063 if (sv->sv_bulk_ready != NULL)
1064 rc = (*sv->sv_bulk_ready) (rpc, rc);
1067 srpc_server_rpc_done(rpc, rc);
1072 wi->swi_state = SWI_STATE_REPLY_SUBMITTED;
1073 rc = srpc_send_reply(rpc);
1075 return 0; /* wait for reply */
1076 srpc_server_rpc_done(rpc, rc);
1079 case SWI_STATE_REPLY_SUBMITTED:
1080 if (!ev->ev_fired) {
1081 CERROR("RPC %p: bulk %p, service %d\n",
1082 rpc, rpc->srpc_bulk, sv->sv_id);
1083 CERROR("Event: status %d, type %d, lnet %d\n",
1084 ev->ev_status, ev->ev_type, ev->ev_lnet);
1085 LASSERT(ev->ev_fired);
1088 wi->swi_state = SWI_STATE_DONE;
1089 srpc_server_rpc_done(rpc, ev->ev_status);
1097 srpc_client_rpc_expired (void *data)
1099 struct srpc_client_rpc *rpc = data;
1101 CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
1102 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1105 spin_lock(&rpc->crpc_lock);
1107 rpc->crpc_timeout = 0;
1108 srpc_abort_rpc(rpc, -ETIMEDOUT);
1110 spin_unlock(&rpc->crpc_lock);
1112 atomic_inc(&RPC_STAT32(SRPC_RPC_EXPIRED));
1116 srpc_add_client_rpc_timer(struct srpc_client_rpc *rpc)
1118 struct stt_timer *timer = &rpc->crpc_timer;
1120 if (rpc->crpc_timeout == 0)
1123 INIT_LIST_HEAD(&timer->stt_list);
1124 timer->stt_data = rpc;
1125 timer->stt_func = srpc_client_rpc_expired;
1126 timer->stt_expires = ktime_get_real_seconds() + rpc->crpc_timeout;
1127 stt_add_timer(timer);
1131 * Called with rpc->crpc_lock held.
1133 * Upon exit the RPC expiry timer is not queued and the handler is not
1134 * running on any CPU.
1137 srpc_del_client_rpc_timer(struct srpc_client_rpc *rpc)
1139 /* timer not planted or already exploded */
1140 if (rpc->crpc_timeout == 0)
1143 /* timer successfully defused */
1144 if (stt_del_timer(&rpc->crpc_timer))
1147 /* timer detonated, wait for it to explode */
1148 while (rpc->crpc_timeout != 0) {
1149 spin_unlock(&rpc->crpc_lock);
1153 spin_lock(&rpc->crpc_lock);
1158 srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status)
1160 struct swi_workitem *wi = &rpc->crpc_wi;
1162 LASSERT(status != 0 || wi->swi_state == SWI_STATE_DONE);
1164 spin_lock(&rpc->crpc_lock);
1166 rpc->crpc_closed = 1;
1167 if (rpc->crpc_status == 0)
1168 rpc->crpc_status = status;
1170 srpc_del_client_rpc_timer(rpc);
1172 CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
1173 "Client RPC done: service %d, peer %s, status %s:%d:%d\n",
1174 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1175 swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
1178 * No one can schedule me now since:
1179 * - RPC timer has been defused.
1180 * - all LNet events have been fired.
1181 * - crpc_closed has been set, preventing srpc_abort_rpc from
1183 * Cancel pending schedules and prevent future schedule attempts:
1185 LASSERT(!srpc_event_pending(rpc));
1186 swi_exit_workitem(wi);
1188 spin_unlock(&rpc->crpc_lock);
1190 (*rpc->crpc_done)(rpc);
1193 /* sends an outgoing RPC */
1195 srpc_send_rpc(struct swi_workitem *wi)
1198 struct srpc_client_rpc *rpc;
1199 struct srpc_msg *reply;
1202 LASSERT(wi != NULL);
1204 rpc = container_of(wi, struct srpc_client_rpc, crpc_wi);
1206 LASSERT(rpc != NULL);
1207 LASSERT(wi == &rpc->crpc_wi);
1209 reply = &rpc->crpc_replymsg;
1210 do_bulk = rpc->crpc_bulk.bk_niov > 0;
1212 spin_lock(&rpc->crpc_lock);
1214 if (rpc->crpc_aborted) {
1215 spin_unlock(&rpc->crpc_lock);
1219 spin_unlock(&rpc->crpc_lock);
1221 switch (wi->swi_state) {
1224 case SWI_STATE_NEWBORN:
1225 LASSERT(!srpc_event_pending(rpc));
1227 rc = srpc_prepare_reply(rpc);
1229 srpc_client_rpc_done(rpc, rc);
1233 rc = srpc_prepare_bulk(rpc);
1237 wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
1238 rc = srpc_send_request(rpc);
1241 case SWI_STATE_REQUEST_SUBMITTED:
1242 /* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
1243 * order; however, they're processed in a strict order:
1244 * rqt, rpy, and bulk.
1246 if (!rpc->crpc_reqstev.ev_fired)
1249 rc = rpc->crpc_reqstev.ev_status;
1253 wi->swi_state = SWI_STATE_REQUEST_SENT;
1255 case SWI_STATE_REQUEST_SENT: {
1256 enum srpc_msg_type type;
1258 type = srpc_service2reply(rpc->crpc_service);
1260 if (!rpc->crpc_replyev.ev_fired)
1263 rc = rpc->crpc_replyev.ev_status;
1267 srpc_unpack_msg_hdr(reply);
1268 if (reply->msg_type != type ||
1269 (reply->msg_magic != SRPC_MSG_MAGIC &&
1270 reply->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1271 CWARN("Bad message from %s: type %u (%d expected), magic %u (%d expected).\n",
1272 libcfs_id2str(rpc->crpc_dest),
1273 reply->msg_type, type,
1274 reply->msg_magic, SRPC_MSG_MAGIC);
1279 if (do_bulk && reply->msg_body.reply.status != 0) {
1280 CWARN("Remote error %d at %s, unlink bulk buffer in case peer didn't initiate bulk transfer\n",
1281 reply->msg_body.reply.status,
1282 libcfs_id2str(rpc->crpc_dest));
1283 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1286 wi->swi_state = SWI_STATE_REPLY_RECEIVED;
1289 case SWI_STATE_REPLY_RECEIVED:
1290 if (do_bulk && !rpc->crpc_bulkev.ev_fired)
1293 rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
1295 /* Bulk buffer was unlinked due to remote error. Clear error
1296 * since reply buffer still contains valid data.
1297 * NB rpc->crpc_done shouldn't look into bulk data in case of
1300 if (do_bulk && rpc->crpc_bulkev.ev_lnet == LNET_EVENT_UNLINK &&
1301 rpc->crpc_status == 0 && reply->msg_body.reply.status != 0)
1304 wi->swi_state = SWI_STATE_DONE;
1305 srpc_client_rpc_done(rpc, rc);
1310 spin_lock(&rpc->crpc_lock);
1311 srpc_abort_rpc(rpc, rc);
1312 spin_unlock(&rpc->crpc_lock);
1316 if (rpc->crpc_aborted) {
1317 LNetMDUnlink(rpc->crpc_reqstmdh);
1318 LNetMDUnlink(rpc->crpc_replymdh);
1319 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1321 if (!srpc_event_pending(rpc)) {
1322 srpc_client_rpc_done(rpc, -EINTR);
1329 struct srpc_client_rpc *
1330 srpc_create_client_rpc(struct lnet_process_id peer, int service,
1331 int nbulkiov, int bulklen,
1332 void (*rpc_done)(struct srpc_client_rpc *),
1333 void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
1335 struct srpc_client_rpc *rpc;
1337 LIBCFS_ALLOC(rpc, offsetof(struct srpc_client_rpc,
1338 crpc_bulk.bk_iovs[nbulkiov]));
1342 srpc_init_client_rpc(rpc, peer, service, nbulkiov,
1343 bulklen, rpc_done, rpc_fini, priv);
1347 /* called with rpc->crpc_lock held */
1349 srpc_abort_rpc(struct srpc_client_rpc *rpc, int why)
1353 if (rpc->crpc_aborted || /* already aborted */
1354 rpc->crpc_closed) /* callback imminent */
1358 "Aborting RPC: service %d, peer %s, state %s, why %d\n",
1359 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1360 swi_state2str(rpc->crpc_wi.swi_state), why);
1362 rpc->crpc_aborted = 1;
1363 rpc->crpc_status = why;
1364 swi_schedule_workitem(&rpc->crpc_wi);
1367 /* called with rpc->crpc_lock held */
1369 srpc_post_rpc(struct srpc_client_rpc *rpc)
1371 LASSERT(!rpc->crpc_aborted);
1372 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
1374 CDEBUG(D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
1375 libcfs_id2str(rpc->crpc_dest), rpc->crpc_service,
1378 srpc_add_client_rpc_timer(rpc);
1379 swi_schedule_workitem(&rpc->crpc_wi);
1384 srpc_send_reply(struct srpc_server_rpc *rpc)
1386 struct srpc_event *ev = &rpc->srpc_ev;
1387 struct srpc_msg *msg = &rpc->srpc_replymsg;
1388 struct srpc_buffer *buffer = rpc->srpc_reqstbuf;
1389 struct srpc_service_cd *scd = rpc->srpc_scd;
1390 struct srpc_service *sv = scd->scd_svc;
1394 LASSERT(buffer != NULL);
1395 rpyid = buffer->buf_msg.msg_body.reqst.rpyid;
1397 spin_lock(&scd->scd_lock);
1399 if (!sv->sv_shuttingdown && !srpc_serv_is_framework(sv)) {
1400 /* Repost buffer before replying since test client
1401 * might send me another RPC once it gets the reply
1403 if (srpc_service_post_buffer(scd, buffer) != 0)
1404 CWARN("Failed to repost %s buffer\n", sv->sv_name);
1405 rpc->srpc_reqstbuf = NULL;
1408 spin_unlock(&scd->scd_lock);
1412 ev->ev_type = SRPC_REPLY_SENT;
1414 msg->msg_magic = SRPC_MSG_MAGIC;
1415 msg->msg_version = SRPC_MSG_VERSION;
1416 msg->msg_type = srpc_service2reply(sv->sv_id);
1418 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, rpyid, msg,
1419 sizeof(*msg), LNET_MD_OP_PUT,
1420 rpc->srpc_peer, rpc->srpc_self,
1421 &rpc->srpc_replymdh, ev);
1423 ev->ev_fired = 1; /* no more event expected */
1427 /* when in kernel always called with LNET_LOCK() held, and in thread context */
1429 srpc_lnet_ev_handler(struct lnet_event *ev)
1431 struct srpc_service_cd *scd;
1432 struct srpc_event *rpcev = ev->md_user_ptr;
1433 struct srpc_client_rpc *crpc;
1434 struct srpc_server_rpc *srpc;
1435 struct srpc_buffer *buffer;
1436 struct srpc_service *sv;
1437 struct srpc_msg *msg;
1438 enum srpc_msg_type type;
1440 LASSERT(!in_interrupt());
1442 if (ev->status != 0) {
1446 if (ev->status != -ECANCELED) /* cancellation is not error */
1447 errors = atomic_inc_return(&RPC_STAT32(SRPC_ERROR));
1449 errors = atomic_read(&RPC_STAT32(SRPC_ERROR));
1451 CNETERR("LNet event status %d type %d, RPC errors %u\n",
1452 ev->status, ev->type, errors);
1455 rpcev->ev_lnet = ev->type;
1457 switch (rpcev->ev_type) {
1459 CERROR("Unknown event: status %d, type %d, lnet %d\n",
1460 rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
1463 case SRPC_REQUEST_SENT:
1464 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK)
1465 atomic_inc(&RPC_STAT32(SRPC_RPC_SENT));
1468 case SRPC_REPLY_RCVD:
1469 case SRPC_BULK_REQ_RCVD:
1470 crpc = rpcev->ev_data;
1472 if (rpcev != &crpc->crpc_reqstev &&
1473 rpcev != &crpc->crpc_replyev &&
1474 rpcev != &crpc->crpc_bulkev) {
1475 CERROR("rpcev %p, crpc %p, reqstev %p, replyev %p, bulkev %p\n",
1476 rpcev, crpc, &crpc->crpc_reqstev,
1477 &crpc->crpc_replyev, &crpc->crpc_bulkev);
1478 CERROR("Bad event: status %d, type %d, lnet %d\n",
1479 rpcev->ev_status, rpcev->ev_type,
1484 spin_lock(&crpc->crpc_lock);
1486 LASSERT(rpcev->ev_fired == 0);
1487 rpcev->ev_fired = 1;
1488 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1489 -EINTR : ev->status;
1490 swi_schedule_workitem(&crpc->crpc_wi);
1492 spin_unlock(&crpc->crpc_lock);
1495 case SRPC_REQUEST_RCVD:
1496 scd = rpcev->ev_data;
1499 LASSERT(rpcev == &scd->scd_ev);
1501 spin_lock(&scd->scd_lock);
1503 LASSERT(ev->unlinked);
1504 LASSERT(ev->type == LNET_EVENT_PUT ||
1505 ev->type == LNET_EVENT_UNLINK);
1506 LASSERT(ev->type != LNET_EVENT_UNLINK ||
1507 sv->sv_shuttingdown);
1509 buffer = container_of(ev->md_start, struct srpc_buffer,
1511 buffer->buf_peer = lnet_pid_to_pid4(&ev->source);
1512 buffer->buf_self = lnet_nid_to_nid4(&ev->target.nid);
1514 LASSERT(scd->scd_buf_nposted > 0);
1515 scd->scd_buf_nposted--;
1517 if (sv->sv_shuttingdown) {
1518 /* Leave buffer on scd->scd_buf_nposted since
1519 * srpc_finish_service needs to traverse it.
1521 spin_unlock(&scd->scd_lock);
1525 if (scd->scd_buf_err_stamp != 0 &&
1526 scd->scd_buf_err_stamp < ktime_get_real_seconds()) {
1527 /* re-enable adding buffer */
1528 scd->scd_buf_err_stamp = 0;
1529 scd->scd_buf_err = 0;
1532 if (scd->scd_buf_err == 0 && /* adding buffer is enabled */
1533 scd->scd_buf_adjust == 0 &&
1534 scd->scd_buf_nposted < scd->scd_buf_low) {
1535 scd->scd_buf_adjust = max(scd->scd_buf_total / 2,
1537 swi_schedule_workitem(&scd->scd_buf_wi);
1540 list_del(&buffer->buf_list); /* from scd->scd_buf_posted */
1541 msg = &buffer->buf_msg;
1542 type = srpc_service2request(sv->sv_id);
1544 if (ev->status != 0 || ev->mlength != sizeof(*msg) ||
1545 (msg->msg_type != type &&
1546 msg->msg_type != __swab32(type)) ||
1547 (msg->msg_magic != SRPC_MSG_MAGIC &&
1548 msg->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1549 CERROR("Dropping RPC (%s) from %s: status %d mlength %d type %u magic %u.\n",
1550 sv->sv_name, libcfs_idstr(&ev->initiator),
1551 ev->status, ev->mlength,
1552 msg->msg_type, msg->msg_magic);
1554 /* NB can't call srpc_service_recycle_buffer here since
1555 * it may call LNetM[DE]Attach. The invalid magic tells
1556 * srpc_handle_rpc to drop this RPC
1561 if (!list_empty(&scd->scd_rpc_free)) {
1562 srpc = list_entry(scd->scd_rpc_free.next,
1563 struct srpc_server_rpc,
1565 list_del(&srpc->srpc_list);
1567 srpc_init_server_rpc(srpc, scd, buffer);
1568 list_add_tail(&srpc->srpc_list,
1569 &scd->scd_rpc_active);
1570 swi_schedule_workitem(&srpc->srpc_wi);
1572 list_add_tail(&buffer->buf_list,
1573 &scd->scd_buf_blocked);
1576 spin_unlock(&scd->scd_lock);
1578 atomic_inc(&RPC_STAT32(SRPC_RPC_RCVD));
1581 case SRPC_BULK_GET_RPLD:
1582 LASSERT(ev->type == LNET_EVENT_SEND ||
1583 ev->type == LNET_EVENT_REPLY ||
1584 ev->type == LNET_EVENT_UNLINK);
1587 break; /* wait for final event */
1589 case SRPC_BULK_PUT_SENT:
1590 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1593 if (rpcev->ev_type == SRPC_BULK_GET_RPLD)
1594 data = &srpc_data.rpc_counters64[SRPC_BULK_GET];
1596 data = &srpc_data.rpc_counters64[SRPC_BULK_PUT];
1598 atomic64_add(ev->mlength, data);
1601 case SRPC_REPLY_SENT:
1602 srpc = rpcev->ev_data;
1603 scd = srpc->srpc_scd;
1605 LASSERT(rpcev == &srpc->srpc_ev);
1607 spin_lock(&scd->scd_lock);
1609 rpcev->ev_fired = 1;
1610 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1611 -EINTR : ev->status;
1612 swi_schedule_workitem(&srpc->srpc_wi);
1614 spin_unlock(&scd->scd_lock);
1625 memset(&srpc_data, 0, sizeof(struct smoketest_rpc));
1626 spin_lock_init(&srpc_data.rpc_glock);
1628 /* 1 second pause to avoid timestamp reuse */
1629 schedule_timeout_uninterruptible(cfs_time_seconds(1));
1630 atomic64_set(&srpc_data.rpc_matchbits,
1631 ((__u64)ktime_get_real_seconds() << 48));
1633 srpc_data.rpc_state = SRPC_STATE_NONE;
1635 rc = LNetNIInit(LNET_PID_LUSTRE);
1637 CERROR("LNetNIInit() has failed: %d\n", rc);
1641 srpc_data.rpc_state = SRPC_STATE_NI_INIT;
1643 srpc_data.rpc_lnet_handler = srpc_lnet_ev_handler;
1645 rc = LNetSetLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1647 rc = LNetSetLazyPortal(SRPC_REQUEST_PORTAL);
1650 srpc_data.rpc_state = SRPC_STATE_EQ_INIT;
1657 srpc_data.rpc_state = SRPC_STATE_RUNNING;
1663 srpc_shutdown (void)
1669 state = srpc_data.rpc_state;
1670 srpc_data.rpc_state = SRPC_STATE_STOPPING;
1676 case SRPC_STATE_RUNNING:
1677 spin_lock(&srpc_data.rpc_glock);
1679 for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) {
1680 struct srpc_service *sv = srpc_data.rpc_services[i];
1682 LASSERTF(sv == NULL,
1683 "service not empty: id %d, name %s\n",
1687 spin_unlock(&srpc_data.rpc_glock);
1692 case SRPC_STATE_EQ_INIT:
1693 rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1694 rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
1696 lnet_assert_handler_unused(srpc_data.rpc_lnet_handler);
1699 case SRPC_STATE_NI_INIT: