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 peer4,
355 struct lnet_handle_md *mdh, struct srpc_event *ev)
360 struct lnet_processid peer;
362 peer.pid = peer4.pid;
363 lnet_nid4_to_nid(peer4.nid, &peer.nid);
365 me = LNetMEAttach(portal, &peer, matchbits, 0, LNET_UNLINK,
366 local ? LNET_INS_LOCAL : LNET_INS_AFTER);
369 CERROR("LNetMEAttach failed: %d\n", rc);
370 LASSERT(rc == -ENOMEM);
378 md.options = options;
379 md.handler = srpc_data.rpc_lnet_handler;
381 rc = LNetMDAttach(me, &md, LNET_UNLINK, mdh);
383 CERROR("LNetMDAttach failed: %d\n", rc);
384 LASSERT(rc == -ENOMEM);
390 "Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
391 libcfs_id2str(peer4), portal, matchbits);
396 srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
397 int options, struct lnet_process_id peer,
398 lnet_nid_t self, struct lnet_handle_md *mdh,
399 struct srpc_event *ev)
407 md.handler = srpc_data.rpc_lnet_handler;
408 md.threshold = ((options & LNET_MD_OP_GET) != 0) ? 2 : 1;
409 md.options = options & ~(LNET_MD_OP_PUT | LNET_MD_OP_GET);
411 rc = LNetMDBind(&md, LNET_UNLINK, mdh);
413 CERROR("LNetMDBind failed: %d\n", rc);
414 LASSERT(rc == -ENOMEM);
418 /* this is kind of an abuse of the LNET_MD_OP_{PUT,GET} options.
419 * they're only meaningful for MDs attached to an ME (i.e. passive
422 if ((options & LNET_MD_OP_PUT) != 0) {
423 rc = LNetPut(self, *mdh, LNET_NOACK_REQ, peer,
424 portal, matchbits, 0, 0);
426 LASSERT((options & LNET_MD_OP_GET) != 0);
428 rc = LNetGet(self, *mdh, peer, portal, matchbits, 0, false);
432 CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
433 ((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
434 libcfs_id2str(peer), portal, matchbits, rc);
436 /* The forthcoming unlink event will complete this operation
437 * with failure, so fall through and return success here.
439 rc = LNetMDUnlink(*mdh);
443 "Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
444 libcfs_id2str(peer), portal, matchbits);
450 srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
451 struct lnet_handle_md *mdh, struct srpc_event *ev)
453 struct lnet_process_id any = {0};
455 any.nid = LNET_NID_ANY;
456 any.pid = LNET_PID_ANY;
458 return srpc_post_passive_rdma(srpc_serv_portal(service),
459 local, service, buf, len,
460 LNET_MD_OP_PUT, any, mdh, ev);
464 srpc_service_post_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf)
465 __must_hold(&scd->scd_lock)
467 struct srpc_service *sv = scd->scd_svc;
468 struct srpc_msg *msg = &buf->buf_msg;
471 LNetInvalidateMDHandle(&buf->buf_mdh);
472 list_add(&buf->buf_list, &scd->scd_buf_posted);
473 scd->scd_buf_nposted++;
474 spin_unlock(&scd->scd_lock);
476 rc = srpc_post_passive_rqtbuf(sv->sv_id,
477 !srpc_serv_is_framework(sv),
478 msg, sizeof(*msg), &buf->buf_mdh,
481 /* At this point, a RPC (new or delayed) may have arrived in
482 * msg and its event handler has been called. So we must add
483 * buf to scd_buf_posted _before_ dropping scd_lock */
485 spin_lock(&scd->scd_lock);
488 if (!sv->sv_shuttingdown)
491 spin_unlock(&scd->scd_lock);
492 /* srpc_shutdown_service might have tried to unlink me
493 * when my buf_mdh was still invalid */
494 LNetMDUnlink(buf->buf_mdh);
495 spin_lock(&scd->scd_lock);
499 scd->scd_buf_nposted--;
500 if (sv->sv_shuttingdown)
501 return rc; /* don't allow to change scd_buf_posted */
503 list_del(&buf->buf_list);
504 spin_unlock(&scd->scd_lock);
506 LIBCFS_FREE(buf, sizeof(*buf));
508 spin_lock(&scd->scd_lock);
513 srpc_add_buffer(struct swi_workitem *wi)
515 struct srpc_service_cd *scd = container_of(wi, struct srpc_service_cd,
517 struct srpc_buffer *buf;
520 /* it's called by workitem scheduler threads, these threads
521 * should have been set CPT affinity, so buffers will be posted
522 * on CPT local list of Portal */
523 spin_lock(&scd->scd_lock);
525 while (scd->scd_buf_adjust > 0 &&
526 !scd->scd_svc->sv_shuttingdown) {
527 scd->scd_buf_adjust--; /* consume it */
528 scd->scd_buf_posting++;
530 spin_unlock(&scd->scd_lock);
532 LIBCFS_ALLOC(buf, sizeof(*buf));
534 CERROR("Failed to add new buf to service: %s\n",
535 scd->scd_svc->sv_name);
536 spin_lock(&scd->scd_lock);
541 spin_lock(&scd->scd_lock);
542 if (scd->scd_svc->sv_shuttingdown) {
543 spin_unlock(&scd->scd_lock);
544 LIBCFS_FREE(buf, sizeof(*buf));
546 spin_lock(&scd->scd_lock);
551 rc = srpc_service_post_buffer(scd, buf);
553 break; /* buf has been freed inside */
555 LASSERT(scd->scd_buf_posting > 0);
556 scd->scd_buf_posting--;
557 scd->scd_buf_total++;
558 scd->scd_buf_low = max(2, scd->scd_buf_total / 4);
562 scd->scd_buf_err_stamp = ktime_get_real_seconds();
563 scd->scd_buf_err = rc;
565 LASSERT(scd->scd_buf_posting > 0);
566 scd->scd_buf_posting--;
569 spin_unlock(&scd->scd_lock);
574 srpc_service_add_buffers(struct srpc_service *sv, int nbuffer)
576 struct srpc_service_cd *scd;
580 LASSERTF(nbuffer > 0, "nbuffer must be positive: %d\n", nbuffer);
582 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
583 spin_lock(&scd->scd_lock);
585 scd->scd_buf_err = 0;
586 scd->scd_buf_err_stamp = 0;
587 scd->scd_buf_posting = 0;
588 scd->scd_buf_adjust = nbuffer;
589 /* start to post buffers */
590 swi_schedule_workitem(&scd->scd_buf_wi);
591 spin_unlock(&scd->scd_lock);
593 /* framework service only post buffer for one partition */
594 if (srpc_serv_is_framework(sv))
598 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
599 spin_lock(&scd->scd_lock);
601 * NB: srpc_service_add_buffers() can be called inside
602 * thread context of lst_sched_serial, and we don't normally
603 * allow to sleep inside thread context of WI scheduler
604 * because it will block current scheduler thread from doing
605 * anything else, even worse, it could deadlock if it's
606 * waiting on result from another WI of the same scheduler.
607 * However, it's safe at here because scd_buf_wi is scheduled
608 * by thread in a different WI scheduler (lst_sched_test),
609 * so we don't have any risk of deadlock, though this could
610 * block all WIs pending on lst_sched_serial for a moment
611 * which is not good but not fatal.
613 lst_wait_until(scd->scd_buf_err != 0 ||
614 (scd->scd_buf_adjust == 0 &&
615 scd->scd_buf_posting == 0),
616 scd->scd_lock, "waiting for adding buffer\n");
618 if (scd->scd_buf_err != 0 && rc == 0)
619 rc = scd->scd_buf_err;
621 spin_unlock(&scd->scd_lock);
628 srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer)
630 struct srpc_service_cd *scd;
634 LASSERT(!sv->sv_shuttingdown);
636 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
637 spin_lock(&scd->scd_lock);
639 num = scd->scd_buf_total + scd->scd_buf_posting;
640 scd->scd_buf_adjust -= min(nbuffer, num);
642 spin_unlock(&scd->scd_lock);
646 /* returns 1 if sv has finished, otherwise 0 */
648 srpc_finish_service(struct srpc_service *sv)
650 struct srpc_service_cd *scd;
651 struct srpc_server_rpc *rpc;
654 LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */
656 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
657 spin_lock(&scd->scd_lock);
658 if (!swi_deschedule_workitem(&scd->scd_buf_wi)) {
659 spin_unlock(&scd->scd_lock);
663 if (scd->scd_buf_nposted > 0) {
664 CDEBUG(D_NET, "waiting for %d posted buffers to unlink\n",
665 scd->scd_buf_nposted);
666 spin_unlock(&scd->scd_lock);
670 if (list_empty(&scd->scd_rpc_active)) {
671 spin_unlock(&scd->scd_lock);
675 rpc = list_entry(scd->scd_rpc_active.next,
676 struct srpc_server_rpc, srpc_list);
677 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",
678 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
679 swi_state2str(rpc->srpc_wi.swi_state),
680 rpc->srpc_wi.swi_workitem.wi_scheduled,
681 rpc->srpc_wi.swi_workitem.wi_running,
682 rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type,
683 rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet);
684 spin_unlock(&scd->scd_lock);
688 /* no lock needed from now on */
689 srpc_service_fini(sv);
693 /* called with sv->sv_lock held */
695 srpc_service_recycle_buffer(struct srpc_service_cd *scd,
696 struct srpc_buffer *buf)
697 __must_hold(&scd->scd_lock)
699 if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) {
700 if (srpc_service_post_buffer(scd, buf) != 0) {
701 CWARN("Failed to post %s buffer\n",
702 scd->scd_svc->sv_name);
707 /* service is shutting down, or we want to recycle some buffers */
708 scd->scd_buf_total--;
710 if (scd->scd_buf_adjust < 0) {
711 scd->scd_buf_adjust++;
712 if (scd->scd_buf_adjust < 0 &&
713 scd->scd_buf_total == 0 && scd->scd_buf_posting == 0) {
715 "Try to recyle %d buffers but nothing left\n",
716 scd->scd_buf_adjust);
717 scd->scd_buf_adjust = 0;
721 spin_unlock(&scd->scd_lock);
722 LIBCFS_FREE(buf, sizeof(*buf));
723 spin_lock(&scd->scd_lock);
727 srpc_abort_service(struct srpc_service *sv)
729 struct srpc_service_cd *scd;
730 struct srpc_server_rpc *rpc;
733 CDEBUG(D_NET, "Aborting service: id %d, name %s\n",
734 sv->sv_id, sv->sv_name);
736 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
737 spin_lock(&scd->scd_lock);
739 /* schedule in-flight RPCs to notice the abort, NB:
740 * racing with incoming RPCs; complete fix should make test
741 * RPCs carry session ID in its headers
743 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list) {
744 rpc->srpc_aborted = 1;
745 swi_schedule_workitem(&rpc->srpc_wi);
748 spin_unlock(&scd->scd_lock);
753 srpc_shutdown_service(struct srpc_service *sv)
755 struct srpc_service_cd *scd;
756 struct srpc_server_rpc *rpc;
757 struct srpc_buffer *buf;
760 CDEBUG(D_NET, "Shutting down service: id %d, name %s\n",
761 sv->sv_id, sv->sv_name);
763 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
764 spin_lock(&scd->scd_lock);
766 sv->sv_shuttingdown = 1; /* i.e. no new active RPC */
768 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
769 spin_unlock(&scd->scd_lock);
771 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
772 spin_lock(&scd->scd_lock);
774 /* schedule in-flight RPCs to notice the shutdown */
775 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list)
776 swi_schedule_workitem(&rpc->srpc_wi);
778 spin_unlock(&scd->scd_lock);
780 /* OK to traverse scd_buf_posted without lock, since no one
781 * touches scd_buf_posted now
783 list_for_each_entry(buf, &scd->scd_buf_posted, buf_list)
784 LNetMDUnlink(buf->buf_mdh);
789 srpc_send_request(struct srpc_client_rpc *rpc)
791 struct srpc_event *ev = &rpc->crpc_reqstev;
796 ev->ev_type = SRPC_REQUEST_SENT;
798 rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service),
799 rpc->crpc_service, &rpc->crpc_reqstmsg,
800 sizeof(struct srpc_msg), LNET_MD_OP_PUT,
801 rpc->crpc_dest, LNET_NID_ANY,
802 &rpc->crpc_reqstmdh, ev);
804 LASSERT(rc == -ENOMEM);
805 ev->ev_fired = 1; /* no more event expected */
811 srpc_prepare_reply(struct srpc_client_rpc *rpc)
813 struct srpc_event *ev = &rpc->crpc_replyev;
814 u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
819 ev->ev_type = SRPC_REPLY_RCVD;
821 *id = srpc_next_id();
823 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
825 sizeof(struct srpc_msg),
826 LNET_MD_OP_PUT, rpc->crpc_dest,
827 &rpc->crpc_replymdh, ev);
829 LASSERT(rc == -ENOMEM);
830 ev->ev_fired = 1; /* no more event expected */
836 srpc_prepare_bulk(struct srpc_client_rpc *rpc)
838 struct srpc_bulk *bk = &rpc->crpc_bulk;
839 struct srpc_event *ev = &rpc->crpc_bulkev;
840 __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid;
844 LASSERT(bk->bk_niov <= LNET_MAX_IOV);
847 if (bk->bk_niov == 0)
850 opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
855 ev->ev_type = SRPC_BULK_REQ_RCVD;
857 *id = srpc_next_id();
859 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
860 &bk->bk_iovs[0], bk->bk_niov, opt,
861 rpc->crpc_dest, &bk->bk_mdh, ev);
863 LASSERT(rc == -ENOMEM);
864 ev->ev_fired = 1; /* no more event expected */
870 srpc_do_bulk(struct srpc_server_rpc *rpc)
872 struct srpc_event *ev = &rpc->srpc_ev;
873 struct srpc_bulk *bk = rpc->srpc_bulk;
874 __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid;
880 opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
885 ev->ev_type = bk->bk_sink ? SRPC_BULK_GET_RPLD : SRPC_BULK_PUT_SENT;
887 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, id,
888 &bk->bk_iovs[0], bk->bk_niov, opt,
889 rpc->srpc_peer, rpc->srpc_self,
892 ev->ev_fired = 1; /* no more event expected */
896 /* only called from srpc_handle_rpc */
898 srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status)
900 struct srpc_service_cd *scd = rpc->srpc_scd;
901 struct srpc_service *sv = scd->scd_svc;
902 struct srpc_buffer *buffer;
904 LASSERT(status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
906 rpc->srpc_status = status;
908 CDEBUG_LIMIT(status == 0 ? D_NET : D_NETERROR,
909 "Server RPC %p done: service %s, peer %s, status %s:%d\n",
910 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
911 swi_state2str(rpc->srpc_wi.swi_state), status);
914 spin_lock(&srpc_data.rpc_glock);
915 srpc_data.rpc_counters.rpcs_dropped++;
916 spin_unlock(&srpc_data.rpc_glock);
919 if (rpc->srpc_done != NULL)
920 (*rpc->srpc_done) (rpc);
921 LASSERT(rpc->srpc_bulk == NULL);
923 spin_lock(&scd->scd_lock);
925 if (rpc->srpc_reqstbuf != NULL) {
926 /* NB might drop sv_lock in srpc_service_recycle_buffer, but
927 * sv won't go away for scd_rpc_active must not be empty
929 srpc_service_recycle_buffer(scd, rpc->srpc_reqstbuf);
930 rpc->srpc_reqstbuf = NULL;
933 list_del(&rpc->srpc_list); /* from scd->scd_rpc_active */
936 * No one can schedule me now since:
937 * - I'm not on scd_rpc_active.
938 * - all LNet events have been fired.
939 * Cancel pending schedules and prevent future schedule attempts:
941 LASSERT(rpc->srpc_ev.ev_fired);
942 swi_exit_workitem(&rpc->srpc_wi);
944 if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) {
945 buffer = list_entry(scd->scd_buf_blocked.next,
946 struct srpc_buffer, buf_list);
947 list_del(&buffer->buf_list);
949 srpc_init_server_rpc(rpc, scd, buffer);
950 list_add_tail(&rpc->srpc_list, &scd->scd_rpc_active);
951 swi_schedule_workitem(&rpc->srpc_wi);
953 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
956 spin_unlock(&scd->scd_lock);
959 /* handles an incoming RPC */
960 static int srpc_handle_rpc(struct swi_workitem *wi)
962 struct srpc_server_rpc *rpc = container_of(wi, struct srpc_server_rpc,
964 struct srpc_service_cd *scd = rpc->srpc_scd;
965 struct srpc_service *sv = scd->scd_svc;
966 struct srpc_event *ev = &rpc->srpc_ev;
969 LASSERT(wi == &rpc->srpc_wi);
971 spin_lock(&scd->scd_lock);
973 if (sv->sv_shuttingdown || rpc->srpc_aborted) {
974 spin_unlock(&scd->scd_lock);
976 if (rpc->srpc_bulk != NULL)
977 LNetMDUnlink(rpc->srpc_bulk->bk_mdh);
978 LNetMDUnlink(rpc->srpc_replymdh);
980 if (ev->ev_fired) { /* no more event, OK to finish */
981 srpc_server_rpc_done(rpc, -ESHUTDOWN);
987 spin_unlock(&scd->scd_lock);
989 switch (wi->swi_state) {
993 case SWI_STATE_NEWBORN: {
994 struct srpc_msg *msg;
995 struct srpc_generic_reply *reply;
997 msg = &rpc->srpc_reqstbuf->buf_msg;
998 reply = &rpc->srpc_replymsg.msg_body.reply;
1000 if (msg->msg_magic == 0) {
1001 /* moaned already in srpc_lnet_ev_handler */
1002 srpc_server_rpc_done(rpc, EBADMSG);
1006 srpc_unpack_msg_hdr(msg);
1007 if (msg->msg_version != SRPC_MSG_VERSION) {
1008 CWARN("Version mismatch: %u, %u expected, from %s\n",
1009 msg->msg_version, SRPC_MSG_VERSION,
1010 libcfs_id2str(rpc->srpc_peer));
1011 reply->status = EPROTO;
1012 /* drop through and send reply */
1015 rc = (*sv->sv_handler)(rpc);
1016 LASSERT(reply->status == 0 || !rpc->srpc_bulk);
1018 srpc_server_rpc_done(rpc, rc);
1023 wi->swi_state = SWI_STATE_BULK_STARTED;
1025 if (rpc->srpc_bulk != NULL) {
1026 rc = srpc_do_bulk(rpc);
1028 return 0; /* wait for bulk */
1030 LASSERT(ev->ev_fired);
1035 case SWI_STATE_BULK_STARTED:
1036 LASSERT(rpc->srpc_bulk == NULL || ev->ev_fired);
1038 if (rpc->srpc_bulk != NULL) {
1041 if (sv->sv_bulk_ready != NULL)
1042 rc = (*sv->sv_bulk_ready) (rpc, rc);
1045 srpc_server_rpc_done(rpc, rc);
1050 wi->swi_state = SWI_STATE_REPLY_SUBMITTED;
1051 rc = srpc_send_reply(rpc);
1053 return 0; /* wait for reply */
1054 srpc_server_rpc_done(rpc, rc);
1057 case SWI_STATE_REPLY_SUBMITTED:
1058 if (!ev->ev_fired) {
1059 CERROR("RPC %p: bulk %p, service %d\n",
1060 rpc, rpc->srpc_bulk, sv->sv_id);
1061 CERROR("Event: status %d, type %d, lnet %d\n",
1062 ev->ev_status, ev->ev_type, ev->ev_lnet);
1063 LASSERT(ev->ev_fired);
1066 wi->swi_state = SWI_STATE_DONE;
1067 srpc_server_rpc_done(rpc, ev->ev_status);
1075 srpc_client_rpc_expired (void *data)
1077 struct srpc_client_rpc *rpc = data;
1079 CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
1080 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1083 spin_lock(&rpc->crpc_lock);
1085 rpc->crpc_timeout = 0;
1086 srpc_abort_rpc(rpc, -ETIMEDOUT);
1088 spin_unlock(&rpc->crpc_lock);
1090 spin_lock(&srpc_data.rpc_glock);
1091 srpc_data.rpc_counters.rpcs_expired++;
1092 spin_unlock(&srpc_data.rpc_glock);
1096 srpc_add_client_rpc_timer(struct srpc_client_rpc *rpc)
1098 struct stt_timer *timer = &rpc->crpc_timer;
1100 if (rpc->crpc_timeout == 0)
1103 INIT_LIST_HEAD(&timer->stt_list);
1104 timer->stt_data = rpc;
1105 timer->stt_func = srpc_client_rpc_expired;
1106 timer->stt_expires = ktime_get_real_seconds() + rpc->crpc_timeout;
1107 stt_add_timer(timer);
1111 * Called with rpc->crpc_lock held.
1113 * Upon exit the RPC expiry timer is not queued and the handler is not
1114 * running on any CPU.
1117 srpc_del_client_rpc_timer(struct srpc_client_rpc *rpc)
1119 /* timer not planted or already exploded */
1120 if (rpc->crpc_timeout == 0)
1123 /* timer successfully defused */
1124 if (stt_del_timer(&rpc->crpc_timer))
1127 /* timer detonated, wait for it to explode */
1128 while (rpc->crpc_timeout != 0) {
1129 spin_unlock(&rpc->crpc_lock);
1133 spin_lock(&rpc->crpc_lock);
1138 srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status)
1140 struct swi_workitem *wi = &rpc->crpc_wi;
1142 LASSERT(status != 0 || wi->swi_state == SWI_STATE_DONE);
1144 spin_lock(&rpc->crpc_lock);
1146 rpc->crpc_closed = 1;
1147 if (rpc->crpc_status == 0)
1148 rpc->crpc_status = status;
1150 srpc_del_client_rpc_timer(rpc);
1152 CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
1153 "Client RPC done: service %d, peer %s, status %s:%d:%d\n",
1154 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1155 swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
1158 * No one can schedule me now since:
1159 * - RPC timer has been defused.
1160 * - all LNet events have been fired.
1161 * - crpc_closed has been set, preventing srpc_abort_rpc from
1163 * Cancel pending schedules and prevent future schedule attempts:
1165 LASSERT(!srpc_event_pending(rpc));
1166 swi_exit_workitem(wi);
1168 spin_unlock(&rpc->crpc_lock);
1170 (*rpc->crpc_done)(rpc);
1173 /* sends an outgoing RPC */
1175 srpc_send_rpc(struct swi_workitem *wi)
1178 struct srpc_client_rpc *rpc;
1179 struct srpc_msg *reply;
1182 LASSERT(wi != NULL);
1184 rpc = container_of(wi, struct srpc_client_rpc, crpc_wi);
1186 LASSERT(rpc != NULL);
1187 LASSERT(wi == &rpc->crpc_wi);
1189 reply = &rpc->crpc_replymsg;
1190 do_bulk = rpc->crpc_bulk.bk_niov > 0;
1192 spin_lock(&rpc->crpc_lock);
1194 if (rpc->crpc_aborted) {
1195 spin_unlock(&rpc->crpc_lock);
1199 spin_unlock(&rpc->crpc_lock);
1201 switch (wi->swi_state) {
1204 case SWI_STATE_NEWBORN:
1205 LASSERT(!srpc_event_pending(rpc));
1207 rc = srpc_prepare_reply(rpc);
1209 srpc_client_rpc_done(rpc, rc);
1213 rc = srpc_prepare_bulk(rpc);
1217 wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
1218 rc = srpc_send_request(rpc);
1221 case SWI_STATE_REQUEST_SUBMITTED:
1222 /* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
1223 * order; however, they're processed in a strict order:
1224 * rqt, rpy, and bulk.
1226 if (!rpc->crpc_reqstev.ev_fired)
1229 rc = rpc->crpc_reqstev.ev_status;
1233 wi->swi_state = SWI_STATE_REQUEST_SENT;
1235 case SWI_STATE_REQUEST_SENT: {
1236 enum srpc_msg_type type;
1238 type = srpc_service2reply(rpc->crpc_service);
1240 if (!rpc->crpc_replyev.ev_fired)
1243 rc = rpc->crpc_replyev.ev_status;
1247 srpc_unpack_msg_hdr(reply);
1248 if (reply->msg_type != type ||
1249 (reply->msg_magic != SRPC_MSG_MAGIC &&
1250 reply->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1251 CWARN("Bad message from %s: type %u (%d expected), magic %u (%d expected).\n",
1252 libcfs_id2str(rpc->crpc_dest),
1253 reply->msg_type, type,
1254 reply->msg_magic, SRPC_MSG_MAGIC);
1259 if (do_bulk && reply->msg_body.reply.status != 0) {
1260 CWARN("Remote error %d at %s, unlink bulk buffer in case peer didn't initiate bulk transfer\n",
1261 reply->msg_body.reply.status,
1262 libcfs_id2str(rpc->crpc_dest));
1263 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1266 wi->swi_state = SWI_STATE_REPLY_RECEIVED;
1269 case SWI_STATE_REPLY_RECEIVED:
1270 if (do_bulk && !rpc->crpc_bulkev.ev_fired)
1273 rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
1275 /* Bulk buffer was unlinked due to remote error. Clear error
1276 * since reply buffer still contains valid data.
1277 * NB rpc->crpc_done shouldn't look into bulk data in case of
1280 if (do_bulk && rpc->crpc_bulkev.ev_lnet == LNET_EVENT_UNLINK &&
1281 rpc->crpc_status == 0 && reply->msg_body.reply.status != 0)
1284 wi->swi_state = SWI_STATE_DONE;
1285 srpc_client_rpc_done(rpc, rc);
1290 spin_lock(&rpc->crpc_lock);
1291 srpc_abort_rpc(rpc, rc);
1292 spin_unlock(&rpc->crpc_lock);
1296 if (rpc->crpc_aborted) {
1297 LNetMDUnlink(rpc->crpc_reqstmdh);
1298 LNetMDUnlink(rpc->crpc_replymdh);
1299 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1301 if (!srpc_event_pending(rpc)) {
1302 srpc_client_rpc_done(rpc, -EINTR);
1309 struct srpc_client_rpc *
1310 srpc_create_client_rpc(struct lnet_process_id peer, int service,
1311 int nbulkiov, int bulklen,
1312 void (*rpc_done)(struct srpc_client_rpc *),
1313 void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
1315 struct srpc_client_rpc *rpc;
1317 LIBCFS_ALLOC(rpc, offsetof(struct srpc_client_rpc,
1318 crpc_bulk.bk_iovs[nbulkiov]));
1322 srpc_init_client_rpc(rpc, peer, service, nbulkiov,
1323 bulklen, rpc_done, rpc_fini, priv);
1327 /* called with rpc->crpc_lock held */
1329 srpc_abort_rpc(struct srpc_client_rpc *rpc, int why)
1333 if (rpc->crpc_aborted || /* already aborted */
1334 rpc->crpc_closed) /* callback imminent */
1338 "Aborting RPC: service %d, peer %s, state %s, why %d\n",
1339 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1340 swi_state2str(rpc->crpc_wi.swi_state), why);
1342 rpc->crpc_aborted = 1;
1343 rpc->crpc_status = why;
1344 swi_schedule_workitem(&rpc->crpc_wi);
1347 /* called with rpc->crpc_lock held */
1349 srpc_post_rpc(struct srpc_client_rpc *rpc)
1351 LASSERT(!rpc->crpc_aborted);
1352 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
1354 CDEBUG(D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
1355 libcfs_id2str(rpc->crpc_dest), rpc->crpc_service,
1358 srpc_add_client_rpc_timer(rpc);
1359 swi_schedule_workitem(&rpc->crpc_wi);
1364 srpc_send_reply(struct srpc_server_rpc *rpc)
1366 struct srpc_event *ev = &rpc->srpc_ev;
1367 struct srpc_msg *msg = &rpc->srpc_replymsg;
1368 struct srpc_buffer *buffer = rpc->srpc_reqstbuf;
1369 struct srpc_service_cd *scd = rpc->srpc_scd;
1370 struct srpc_service *sv = scd->scd_svc;
1374 LASSERT(buffer != NULL);
1375 rpyid = buffer->buf_msg.msg_body.reqst.rpyid;
1377 spin_lock(&scd->scd_lock);
1379 if (!sv->sv_shuttingdown && !srpc_serv_is_framework(sv)) {
1380 /* Repost buffer before replying since test client
1381 * might send me another RPC once it gets the reply
1383 if (srpc_service_post_buffer(scd, buffer) != 0)
1384 CWARN("Failed to repost %s buffer\n", sv->sv_name);
1385 rpc->srpc_reqstbuf = NULL;
1388 spin_unlock(&scd->scd_lock);
1392 ev->ev_type = SRPC_REPLY_SENT;
1394 msg->msg_magic = SRPC_MSG_MAGIC;
1395 msg->msg_version = SRPC_MSG_VERSION;
1396 msg->msg_type = srpc_service2reply(sv->sv_id);
1398 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, rpyid, msg,
1399 sizeof(*msg), LNET_MD_OP_PUT,
1400 rpc->srpc_peer, rpc->srpc_self,
1401 &rpc->srpc_replymdh, ev);
1403 ev->ev_fired = 1; /* no more event expected */
1407 /* when in kernel always called with LNET_LOCK() held, and in thread context */
1409 srpc_lnet_ev_handler(struct lnet_event *ev)
1411 struct srpc_service_cd *scd;
1412 struct srpc_event *rpcev = ev->md_user_ptr;
1413 struct srpc_client_rpc *crpc;
1414 struct srpc_server_rpc *srpc;
1415 struct srpc_buffer *buffer;
1416 struct srpc_service *sv;
1417 struct srpc_msg *msg;
1418 enum srpc_msg_type type;
1420 LASSERT(!in_interrupt());
1422 if (ev->status != 0) {
1425 spin_lock(&srpc_data.rpc_glock);
1426 if (ev->status != -ECANCELED) /* cancellation is not error */
1427 srpc_data.rpc_counters.errors++;
1428 errors = srpc_data.rpc_counters.errors;
1429 spin_unlock(&srpc_data.rpc_glock);
1431 CNETERR("LNet event status %d type %d, RPC errors %u\n",
1432 ev->status, ev->type, errors);
1435 rpcev->ev_lnet = ev->type;
1437 switch (rpcev->ev_type) {
1439 CERROR("Unknown event: status %d, type %d, lnet %d\n",
1440 rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
1443 case SRPC_REQUEST_SENT:
1444 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1445 spin_lock(&srpc_data.rpc_glock);
1446 srpc_data.rpc_counters.rpcs_sent++;
1447 spin_unlock(&srpc_data.rpc_glock);
1450 case SRPC_REPLY_RCVD:
1451 case SRPC_BULK_REQ_RCVD:
1452 crpc = rpcev->ev_data;
1454 if (rpcev != &crpc->crpc_reqstev &&
1455 rpcev != &crpc->crpc_replyev &&
1456 rpcev != &crpc->crpc_bulkev) {
1457 CERROR("rpcev %p, crpc %p, reqstev %p, replyev %p, bulkev %p\n",
1458 rpcev, crpc, &crpc->crpc_reqstev,
1459 &crpc->crpc_replyev, &crpc->crpc_bulkev);
1460 CERROR("Bad event: status %d, type %d, lnet %d\n",
1461 rpcev->ev_status, rpcev->ev_type,
1466 spin_lock(&crpc->crpc_lock);
1468 LASSERT(rpcev->ev_fired == 0);
1469 rpcev->ev_fired = 1;
1470 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1471 -EINTR : ev->status;
1472 swi_schedule_workitem(&crpc->crpc_wi);
1474 spin_unlock(&crpc->crpc_lock);
1477 case SRPC_REQUEST_RCVD:
1478 scd = rpcev->ev_data;
1481 LASSERT(rpcev == &scd->scd_ev);
1483 spin_lock(&scd->scd_lock);
1485 LASSERT(ev->unlinked);
1486 LASSERT(ev->type == LNET_EVENT_PUT ||
1487 ev->type == LNET_EVENT_UNLINK);
1488 LASSERT(ev->type != LNET_EVENT_UNLINK ||
1489 sv->sv_shuttingdown);
1491 buffer = container_of(ev->md_start, struct srpc_buffer,
1493 buffer->buf_peer = lnet_pid_to_pid4(&ev->source);
1494 buffer->buf_self = lnet_nid_to_nid4(&ev->target.nid);
1496 LASSERT(scd->scd_buf_nposted > 0);
1497 scd->scd_buf_nposted--;
1499 if (sv->sv_shuttingdown) {
1500 /* Leave buffer on scd->scd_buf_nposted since
1501 * srpc_finish_service needs to traverse it.
1503 spin_unlock(&scd->scd_lock);
1507 if (scd->scd_buf_err_stamp != 0 &&
1508 scd->scd_buf_err_stamp < ktime_get_real_seconds()) {
1509 /* re-enable adding buffer */
1510 scd->scd_buf_err_stamp = 0;
1511 scd->scd_buf_err = 0;
1514 if (scd->scd_buf_err == 0 && /* adding buffer is enabled */
1515 scd->scd_buf_adjust == 0 &&
1516 scd->scd_buf_nposted < scd->scd_buf_low) {
1517 scd->scd_buf_adjust = max(scd->scd_buf_total / 2,
1519 swi_schedule_workitem(&scd->scd_buf_wi);
1522 list_del(&buffer->buf_list); /* from scd->scd_buf_posted */
1523 msg = &buffer->buf_msg;
1524 type = srpc_service2request(sv->sv_id);
1526 if (ev->status != 0 || ev->mlength != sizeof(*msg) ||
1527 (msg->msg_type != type &&
1528 msg->msg_type != __swab32(type)) ||
1529 (msg->msg_magic != SRPC_MSG_MAGIC &&
1530 msg->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1531 CERROR("Dropping RPC (%s) from %s: status %d mlength %d type %u magic %u.\n",
1532 sv->sv_name, libcfs_idstr(&ev->initiator),
1533 ev->status, ev->mlength,
1534 msg->msg_type, msg->msg_magic);
1536 /* NB can't call srpc_service_recycle_buffer here since
1537 * it may call LNetM[DE]Attach. The invalid magic tells
1538 * srpc_handle_rpc to drop this RPC
1543 if (!list_empty(&scd->scd_rpc_free)) {
1544 srpc = list_entry(scd->scd_rpc_free.next,
1545 struct srpc_server_rpc,
1547 list_del(&srpc->srpc_list);
1549 srpc_init_server_rpc(srpc, scd, buffer);
1550 list_add_tail(&srpc->srpc_list,
1551 &scd->scd_rpc_active);
1552 swi_schedule_workitem(&srpc->srpc_wi);
1554 list_add_tail(&buffer->buf_list,
1555 &scd->scd_buf_blocked);
1558 spin_unlock(&scd->scd_lock);
1560 spin_lock(&srpc_data.rpc_glock);
1561 srpc_data.rpc_counters.rpcs_rcvd++;
1562 spin_unlock(&srpc_data.rpc_glock);
1565 case SRPC_BULK_GET_RPLD:
1566 LASSERT(ev->type == LNET_EVENT_SEND ||
1567 ev->type == LNET_EVENT_REPLY ||
1568 ev->type == LNET_EVENT_UNLINK);
1571 break; /* wait for final event */
1573 case SRPC_BULK_PUT_SENT:
1574 if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
1575 spin_lock(&srpc_data.rpc_glock);
1577 if (rpcev->ev_type == SRPC_BULK_GET_RPLD)
1578 srpc_data.rpc_counters.bulk_get += ev->mlength;
1580 srpc_data.rpc_counters.bulk_put += ev->mlength;
1582 spin_unlock(&srpc_data.rpc_glock);
1585 case SRPC_REPLY_SENT:
1586 srpc = rpcev->ev_data;
1587 scd = srpc->srpc_scd;
1589 LASSERT(rpcev == &srpc->srpc_ev);
1591 spin_lock(&scd->scd_lock);
1593 rpcev->ev_fired = 1;
1594 rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
1595 -EINTR : ev->status;
1596 swi_schedule_workitem(&srpc->srpc_wi);
1598 spin_unlock(&scd->scd_lock);
1609 memset(&srpc_data, 0, sizeof(struct smoketest_rpc));
1610 spin_lock_init(&srpc_data.rpc_glock);
1612 /* 1 second pause to avoid timestamp reuse */
1613 schedule_timeout_uninterruptible(cfs_time_seconds(1));
1614 srpc_data.rpc_matchbits = ((__u64) ktime_get_real_seconds()) << 48;
1616 srpc_data.rpc_state = SRPC_STATE_NONE;
1618 rc = LNetNIInit(LNET_PID_LUSTRE);
1620 CERROR("LNetNIInit() has failed: %d\n", rc);
1624 srpc_data.rpc_state = SRPC_STATE_NI_INIT;
1626 srpc_data.rpc_lnet_handler = srpc_lnet_ev_handler;
1628 rc = LNetSetLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1630 rc = LNetSetLazyPortal(SRPC_REQUEST_PORTAL);
1633 srpc_data.rpc_state = SRPC_STATE_EQ_INIT;
1640 srpc_data.rpc_state = SRPC_STATE_RUNNING;
1646 srpc_shutdown (void)
1652 state = srpc_data.rpc_state;
1653 srpc_data.rpc_state = SRPC_STATE_STOPPING;
1659 case SRPC_STATE_RUNNING:
1660 spin_lock(&srpc_data.rpc_glock);
1662 for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) {
1663 struct srpc_service *sv = srpc_data.rpc_services[i];
1665 LASSERTF(sv == NULL,
1666 "service not empty: id %d, name %s\n",
1670 spin_unlock(&srpc_data.rpc_glock);
1675 case SRPC_STATE_EQ_INIT:
1676 rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
1677 rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
1679 lnet_assert_handler_unused(srpc_data.rpc_lnet_handler);
1682 case SRPC_STATE_NI_INIT: