1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
5 * Use is subject to license terms.
7 * Copyright (c) 2012, 2017, Intel Corporation.
11 * This file is part of Lustre, http://www.lustre.org/
13 * Author: Isaac Huang <isaac@clusterfs.com>
15 * 2012-05-13: Liang Zhen <liang@whamcloud.com>
16 * - percpt data for service to improve smp performance
20 #define DEBUG_SUBSYSTEM S_LNET
47 static struct smoketest_rpc {
48 spinlock_t rpc_glock; /* global lock */
49 struct srpc_service *rpc_services[SRPC_SERVICE_MAX_ID + 1];
50 lnet_handler_t rpc_lnet_handler;/* _the_ LNet event handler */
51 enum srpc_state rpc_state;
52 atomic_t rpc_counters32[SRPC_COUNTER32_MAX];
53 atomic64_t rpc_counters64[SRPC_COUNTER64_MAX];
54 atomic64_t rpc_matchbits; /* matchbits counter */
58 #define RPC_STAT32(a) \
59 srpc_data.rpc_counters32[(a)]
61 #define GET_RPC_STAT32(a) \
62 atomic_read(&srpc_data.rpc_counters32[(a)])
64 #define GET_RPC_STAT64(a) \
65 atomic64_read(&srpc_data.rpc_counters64[(a)])
68 srpc_serv_portal(int svc_id)
70 return svc_id < SRPC_FRAMEWORK_SERVICE_MAX_ID ?
71 SRPC_FRAMEWORK_REQUEST_PORTAL : SRPC_REQUEST_PORTAL;
75 static void srpc_handle_rpc(struct swi_workitem *wi);
78 void srpc_get_counters(struct srpc_counters *cnt)
80 cnt->errors = GET_RPC_STAT32(SRPC_ERROR);
81 cnt->rpcs_sent = GET_RPC_STAT32(SRPC_RPC_SENT);
82 cnt->rpcs_rcvd = GET_RPC_STAT32(SRPC_RPC_RCVD);
83 cnt->rpcs_dropped = GET_RPC_STAT32(SRPC_RPC_DROP);
84 cnt->rpcs_expired = GET_RPC_STAT32(SRPC_RPC_EXPIRED);
86 cnt->bulk_get = GET_RPC_STAT64(SRPC_BULK_GET);
87 cnt->bulk_put = GET_RPC_STAT64(SRPC_BULK_PUT);
91 srpc_init_bulk_page(struct srpc_bulk *bk, int i, int off, int nob)
93 LASSERT(off < PAGE_SIZE);
94 LASSERT(nob > 0 && nob <= PAGE_SIZE);
96 bk->bk_iovs[i].bv_offset = off;
97 bk->bk_iovs[i].bv_len = nob;
102 srpc_free_bulk(struct srpc_bulk *bk)
109 for (i = 0; i < bk->bk_alloc; i++) {
110 pg = bk->bk_iovs[i].bv_page;
117 LIBCFS_FREE(bk, offsetof(struct srpc_bulk, bk_iovs[bk->bk_alloc]));
121 srpc_alloc_bulk(int cpt, unsigned int bulk_len)
123 struct srpc_bulk *bk;
125 int bulk_npg = (bulk_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
127 LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV);
129 LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt,
130 offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
132 CERROR("Can't allocate descriptor for %d pages\n", bulk_npg);
136 memset(bk, 0, offsetof(struct srpc_bulk, bk_iovs[bulk_npg]));
137 bk->bk_alloc = bulk_npg;
138 LASSERTF(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV, "b: %u\n", bulk_npg);
140 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);
149 bk->bk_iovs[i].bv_page = pg;
156 srpc_init_bulk(struct srpc_bulk *bk, unsigned int bulk_off,
157 unsigned int bulk_len, int sink)
162 CDEBUG(D_INFO, "bulk %p o %u l %u s %u\n",
163 bk, bulk_off, bulk_len, sink);
168 bk->bk_len = bulk_len;
170 for (i = 0; bulk_len > 0; i++) {
173 LASSERT(bk->bk_iovs[i].bv_page != NULL);
175 nob = min_t(unsigned, bulk_off + bulk_len, PAGE_SIZE) -
178 srpc_init_bulk_page(bk, i, bulk_off, nob);
183 LASSERTF(bk->bk_niov >= 0 && bk->bk_niov <= bk->bk_alloc,
184 "bk %p - n: %u/%u\n", bk, bk->bk_niov, bk->bk_alloc);
190 return atomic64_inc_return(&srpc_data.rpc_matchbits);
194 srpc_init_server_rpc(struct srpc_server_rpc *rpc,
195 struct srpc_service_cd *scd,
196 struct srpc_buffer *buffer)
198 swi_init_workitem(&rpc->srpc_wi, srpc_handle_rpc,
199 srpc_serv_is_framework(scd->scd_svc) ?
200 lst_serial_wq : lst_test_wq[scd->scd_cpt]);
202 rpc->srpc_ev.ev_fired = 1; /* no event expected now */
205 rpc->srpc_reqstbuf = buffer;
206 rpc->srpc_peer = buffer->buf_peer;
207 rpc->srpc_self = buffer->buf_self;
208 LNetInvalidateMDHandle(&rpc->srpc_replymdh);
210 rpc->srpc_aborted = 0;
211 rpc->srpc_status = 0;
215 srpc_service_fini(struct srpc_service *svc)
217 struct srpc_service_cd *scd;
218 struct srpc_server_rpc *rpc;
219 struct srpc_buffer *buf;
223 if (svc->sv_cpt_data == NULL)
226 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
228 if (!list_empty(&scd->scd_buf_posted))
229 q = &scd->scd_buf_posted;
230 else if (!list_empty(&scd->scd_buf_blocked))
231 q = &scd->scd_buf_blocked;
235 while (!list_empty(q)) {
236 buf = list_first_entry(q,
239 list_del(&buf->buf_list);
240 LIBCFS_FREE(buf, sizeof(*buf));
244 LASSERT(list_empty(&scd->scd_rpc_active));
246 while (!list_empty(&scd->scd_rpc_free)) {
247 rpc = list_first_entry(&scd->scd_rpc_free,
248 struct srpc_server_rpc,
250 list_del(&rpc->srpc_list);
251 if (svc->sv_srpc_fini)
252 svc->sv_srpc_fini(rpc);
253 LIBCFS_FREE(rpc, sizeof(*rpc));
257 cfs_percpt_free(svc->sv_cpt_data);
258 svc->sv_cpt_data = NULL;
262 srpc_service_nrpcs(struct srpc_service *svc)
264 int nrpcs = svc->sv_wi_total / svc->sv_ncpts;
266 return srpc_serv_is_framework(svc) ?
267 max(nrpcs, SFW_FRWK_WI_MIN) : max(nrpcs, SFW_TEST_WI_MIN);
270 void srpc_add_buffer(struct swi_workitem *wi);
273 srpc_service_init(struct srpc_service *svc)
275 struct srpc_service_cd *scd;
276 struct srpc_server_rpc *rpc;
281 svc->sv_shuttingdown = 0;
283 svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
284 sizeof(struct srpc_service_cd));
285 if (svc->sv_cpt_data == NULL)
288 svc->sv_ncpts = srpc_serv_is_framework(svc) ?
289 1 : cfs_cpt_number(lnet_cpt_table());
290 nrpcs = srpc_service_nrpcs(svc);
292 cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
295 spin_lock_init(&scd->scd_lock);
296 INIT_LIST_HEAD(&scd->scd_rpc_free);
297 INIT_LIST_HEAD(&scd->scd_rpc_active);
298 INIT_LIST_HEAD(&scd->scd_buf_posted);
299 INIT_LIST_HEAD(&scd->scd_buf_blocked);
301 scd->scd_ev.ev_data = scd;
302 scd->scd_ev.ev_type = SRPC_REQUEST_RCVD;
304 /* NB: don't use lst_serial_wq for adding buffer,
305 * see details in srpc_service_add_buffers() */
306 swi_init_workitem(&scd->scd_buf_wi,
307 srpc_add_buffer, lst_test_wq[i]);
309 if (i != 0 && srpc_serv_is_framework(svc)) {
310 /* NB: framework service only needs srpc_service_cd for
311 * one partition, but we allocate for all to make
312 * it easier to implement, it will waste a little
313 * memory but nobody should care about this */
317 for (j = 0; j < nrpcs; j++) {
318 LIBCFS_CPT_ALLOC(rpc, lnet_cpt_table(),
321 (svc->sv_srpc_init && svc->sv_srpc_init(rpc, i))) {
322 srpc_service_fini(svc);
325 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
333 srpc_add_service(struct srpc_service *sv)
337 LASSERT(0 <= id && id <= SRPC_SERVICE_MAX_ID);
339 if (srpc_service_init(sv) != 0)
342 spin_lock(&srpc_data.rpc_glock);
344 LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
346 if (srpc_data.rpc_services[id] != NULL) {
347 spin_unlock(&srpc_data.rpc_glock);
351 srpc_data.rpc_services[id] = sv;
352 spin_unlock(&srpc_data.rpc_glock);
354 CDEBUG(D_NET, "Adding service: id %d, name %s\n", id, sv->sv_name);
358 srpc_service_fini(sv);
363 srpc_remove_service(struct srpc_service *sv)
367 spin_lock(&srpc_data.rpc_glock);
369 if (srpc_data.rpc_services[id] != sv) {
370 spin_unlock(&srpc_data.rpc_glock);
374 srpc_data.rpc_services[id] = NULL;
375 spin_unlock(&srpc_data.rpc_glock);
380 srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
381 int len, int options, struct lnet_process_id peer4,
382 struct lnet_handle_md *mdh, struct srpc_event *ev)
387 struct lnet_processid peer;
389 peer.pid = peer4.pid;
390 lnet_nid4_to_nid(peer4.nid, &peer.nid);
392 me = LNetMEAttach(portal, &peer, matchbits, 0, LNET_UNLINK,
393 local ? LNET_INS_LOCAL : LNET_INS_AFTER);
396 CERROR("LNetMEAttach failed: %d\n", rc);
397 LASSERT(rc == -ENOMEM);
405 md.options = options;
406 md.handler = srpc_data.rpc_lnet_handler;
408 rc = LNetMDAttach(me, &md, LNET_UNLINK, mdh);
410 CERROR("LNetMDAttach failed: %d\n", rc);
411 LASSERT(rc == -ENOMEM);
417 "Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
418 libcfs_id2str(peer4), portal, matchbits);
423 srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
424 int options, struct lnet_process_id peer4,
425 lnet_nid_t self4, struct lnet_handle_md *mdh,
426 struct srpc_event *ev)
430 struct lnet_nid self;
431 struct lnet_processid peer;
433 lnet_nid4_to_nid(self4, &self);
434 lnet_pid4_to_pid(peer4, &peer);
439 md.handler = srpc_data.rpc_lnet_handler;
440 md.threshold = ((options & LNET_MD_OP_GET) != 0) ? 2 : 1;
441 md.options = options & ~(LNET_MD_OP_PUT | LNET_MD_OP_GET);
443 rc = LNetMDBind(&md, LNET_UNLINK, mdh);
445 CERROR("LNetMDBind failed: %d\n", rc);
446 LASSERT(rc == -ENOMEM);
450 /* this is kind of an abuse of the LNET_MD_OP_{PUT,GET} options.
451 * they're only meaningful for MDs attached to an ME (i.e. passive
454 if ((options & LNET_MD_OP_PUT) != 0) {
455 rc = LNetPut(&self, *mdh, LNET_NOACK_REQ, &peer,
456 portal, matchbits, 0, 0);
458 LASSERT((options & LNET_MD_OP_GET) != 0);
460 rc = LNetGet(&self, *mdh, &peer, portal, matchbits, 0, false);
464 CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
465 ((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
466 libcfs_id2str(peer4), portal, matchbits, rc);
468 /* The forthcoming unlink event will complete this operation
469 * with failure, so fall through and return success here.
471 rc = LNetMDUnlink(*mdh);
475 "Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
476 libcfs_id2str(peer4), portal, matchbits);
482 srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
483 struct lnet_handle_md *mdh, struct srpc_event *ev)
485 struct lnet_process_id any = {0};
487 any.nid = LNET_NID_ANY;
488 any.pid = LNET_PID_ANY;
490 return srpc_post_passive_rdma(srpc_serv_portal(service),
491 local, service, buf, len,
492 LNET_MD_OP_PUT, any, mdh, ev);
496 srpc_service_post_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf)
497 __must_hold(&scd->scd_lock)
499 struct srpc_service *sv = scd->scd_svc;
500 struct srpc_msg *msg = &buf->buf_msg;
503 LNetInvalidateMDHandle(&buf->buf_mdh);
504 list_add(&buf->buf_list, &scd->scd_buf_posted);
505 scd->scd_buf_nposted++;
506 spin_unlock(&scd->scd_lock);
508 rc = srpc_post_passive_rqtbuf(sv->sv_id,
509 !srpc_serv_is_framework(sv),
510 msg, sizeof(*msg), &buf->buf_mdh,
513 /* At this point, a RPC (new or delayed) may have arrived in
514 * msg and its event handler has been called. So we must add
515 * buf to scd_buf_posted _before_ dropping scd_lock */
517 spin_lock(&scd->scd_lock);
520 if (!sv->sv_shuttingdown)
523 spin_unlock(&scd->scd_lock);
524 /* srpc_shutdown_service might have tried to unlink me
525 * when my buf_mdh was still invalid */
526 LNetMDUnlink(buf->buf_mdh);
527 spin_lock(&scd->scd_lock);
531 scd->scd_buf_nposted--;
532 if (sv->sv_shuttingdown)
533 return rc; /* don't allow to change scd_buf_posted */
535 list_del(&buf->buf_list);
536 spin_unlock(&scd->scd_lock);
538 LIBCFS_FREE(buf, sizeof(*buf));
540 spin_lock(&scd->scd_lock);
545 srpc_add_buffer(struct swi_workitem *wi)
547 struct srpc_service_cd *scd = container_of(wi, struct srpc_service_cd,
549 struct srpc_buffer *buf;
552 /* it's called by workitem scheduler threads, these threads
553 * should have been set CPT affinity, so buffers will be posted
554 * on CPT local list of Portal */
555 spin_lock(&scd->scd_lock);
557 while (scd->scd_buf_adjust > 0 &&
558 !scd->scd_svc->sv_shuttingdown) {
559 scd->scd_buf_adjust--; /* consume it */
560 scd->scd_buf_posting++;
562 spin_unlock(&scd->scd_lock);
564 LIBCFS_ALLOC(buf, sizeof(*buf));
566 CERROR("Failed to add new buf to service: %s\n",
567 scd->scd_svc->sv_name);
568 spin_lock(&scd->scd_lock);
573 spin_lock(&scd->scd_lock);
574 if (scd->scd_svc->sv_shuttingdown) {
575 spin_unlock(&scd->scd_lock);
576 LIBCFS_FREE(buf, sizeof(*buf));
578 spin_lock(&scd->scd_lock);
583 rc = srpc_service_post_buffer(scd, buf);
585 break; /* buf has been freed inside */
587 LASSERT(scd->scd_buf_posting > 0);
588 scd->scd_buf_posting--;
589 scd->scd_buf_total++;
590 scd->scd_buf_low = max(2, scd->scd_buf_total / 4);
594 scd->scd_buf_err_stamp = ktime_get_real_seconds();
595 scd->scd_buf_err = rc;
597 LASSERT(scd->scd_buf_posting > 0);
598 scd->scd_buf_posting--;
601 wi->swi_state = SWI_STATE_RUNNING;
602 spin_unlock(&scd->scd_lock);
606 srpc_service_add_buffers(struct srpc_service *sv, int nbuffer)
608 struct srpc_service_cd *scd;
612 LASSERTF(nbuffer > 0, "nbuffer must be positive: %d\n", nbuffer);
614 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
615 spin_lock(&scd->scd_lock);
617 scd->scd_buf_err = 0;
618 scd->scd_buf_err_stamp = 0;
619 scd->scd_buf_posting = 0;
620 scd->scd_buf_adjust = nbuffer;
621 /* start to post buffers */
622 swi_schedule_workitem(&scd->scd_buf_wi);
623 spin_unlock(&scd->scd_lock);
625 /* framework service only post buffer for one partition */
626 if (srpc_serv_is_framework(sv))
630 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
631 spin_lock(&scd->scd_lock);
633 * NB: srpc_service_add_buffers() can be called inside
634 * thread context of lst_serial_wq, and we don't normally
635 * allow to sleep inside thread context of WI scheduler
636 * because it will block current scheduler thread from doing
637 * anything else, even worse, it could deadlock if it's
638 * waiting on result from another WI of the same scheduler.
639 * However, it's safe at here because scd_buf_wi is scheduled
640 * by thread in a different WI scheduler (lst_test_wq),
641 * so we don't have any risk of deadlock, though this could
642 * block all WIs pending on lst_serial_wq for a moment
643 * which is not good but not fatal.
645 lst_wait_until(scd->scd_buf_err != 0 ||
646 (scd->scd_buf_adjust == 0 &&
647 scd->scd_buf_posting == 0),
648 scd->scd_lock, "waiting for adding buffer\n");
650 if (scd->scd_buf_err != 0 && rc == 0)
651 rc = scd->scd_buf_err;
653 spin_unlock(&scd->scd_lock);
660 srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer)
662 struct srpc_service_cd *scd;
666 LASSERT(!sv->sv_shuttingdown);
668 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
669 spin_lock(&scd->scd_lock);
671 num = scd->scd_buf_total + scd->scd_buf_posting;
672 scd->scd_buf_adjust -= min(nbuffer, num);
674 spin_unlock(&scd->scd_lock);
678 /* returns 1 if sv has finished, otherwise 0 */
680 srpc_finish_service(struct srpc_service *sv)
682 struct srpc_service_cd *scd;
683 struct srpc_server_rpc *rpc;
686 LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */
688 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
689 swi_cancel_workitem(&scd->scd_buf_wi);
691 spin_lock(&scd->scd_lock);
692 if (scd->scd_buf_nposted > 0) {
693 CDEBUG(D_NET, "waiting for %d posted buffers to unlink\n",
694 scd->scd_buf_nposted);
695 spin_unlock(&scd->scd_lock);
699 if (list_empty(&scd->scd_rpc_active)) {
700 spin_unlock(&scd->scd_lock);
704 rpc = list_first_entry(&scd->scd_rpc_active,
705 struct srpc_server_rpc, srpc_list);
706 CNETERR("Active RPC %p on shutdown: sv %s, peer %s, wi %s, ev fired %d type %d status %d lnet %d\n",
707 rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
708 swi_state2str(rpc->srpc_wi.swi_state),
709 rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type,
710 rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet);
711 spin_unlock(&scd->scd_lock);
715 /* no lock needed from now on */
716 srpc_service_fini(sv);
720 /* called with sv->sv_lock held */
722 srpc_service_recycle_buffer(struct srpc_service_cd *scd,
723 struct srpc_buffer *buf)
724 __must_hold(&scd->scd_lock)
726 if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) {
727 if (srpc_service_post_buffer(scd, buf) != 0) {
728 CWARN("Failed to post %s buffer\n",
729 scd->scd_svc->sv_name);
734 /* service is shutting down, or we want to recycle some buffers */
735 scd->scd_buf_total--;
737 if (scd->scd_buf_adjust < 0) {
738 scd->scd_buf_adjust++;
739 if (scd->scd_buf_adjust < 0 &&
740 scd->scd_buf_total == 0 && scd->scd_buf_posting == 0) {
742 "Try to recyle %d buffers but nothing left\n",
743 scd->scd_buf_adjust);
744 scd->scd_buf_adjust = 0;
748 spin_unlock(&scd->scd_lock);
749 LIBCFS_FREE(buf, sizeof(*buf));
750 spin_lock(&scd->scd_lock);
754 srpc_abort_service(struct srpc_service *sv)
756 struct srpc_service_cd *scd;
757 struct srpc_server_rpc *rpc;
760 CDEBUG(D_NET, "Aborting 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 /* schedule in-flight RPCs to notice the abort, NB:
767 * racing with incoming RPCs; complete fix should make test
768 * RPCs carry session ID in its headers
770 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list) {
771 rpc->srpc_aborted = 1;
772 swi_schedule_workitem(&rpc->srpc_wi);
775 spin_unlock(&scd->scd_lock);
780 srpc_shutdown_service(struct srpc_service *sv)
782 struct srpc_service_cd *scd;
783 struct srpc_server_rpc *rpc;
784 struct srpc_buffer *buf;
787 CDEBUG(D_NET, "Shutting down service: id %d, name %s\n",
788 sv->sv_id, sv->sv_name);
790 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
791 spin_lock(&scd->scd_lock);
793 sv->sv_shuttingdown = 1; /* i.e. no new active RPC */
795 cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
796 spin_unlock(&scd->scd_lock);
798 cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
799 spin_lock(&scd->scd_lock);
801 /* schedule in-flight RPCs to notice the shutdown */
802 list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list)
803 swi_schedule_workitem(&rpc->srpc_wi);
805 spin_unlock(&scd->scd_lock);
807 /* OK to traverse scd_buf_posted without lock, since no one
808 * touches scd_buf_posted now
810 list_for_each_entry(buf, &scd->scd_buf_posted, buf_list)
811 LNetMDUnlink(buf->buf_mdh);
816 srpc_send_request(struct srpc_client_rpc *rpc)
818 struct srpc_event *ev = &rpc->crpc_reqstev;
823 ev->ev_type = SRPC_REQUEST_SENT;
825 rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service),
826 rpc->crpc_service, &rpc->crpc_reqstmsg,
827 sizeof(struct srpc_msg), LNET_MD_OP_PUT,
828 rpc->crpc_dest, LNET_NID_ANY,
829 &rpc->crpc_reqstmdh, ev);
831 LASSERT(rc == -ENOMEM);
832 ev->ev_fired = 1; /* no more event expected */
838 srpc_prepare_reply(struct srpc_client_rpc *rpc)
840 struct srpc_event *ev = &rpc->crpc_replyev;
841 u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
846 ev->ev_type = SRPC_REPLY_RCVD;
848 *id = srpc_next_id();
850 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
852 sizeof(struct srpc_msg),
853 LNET_MD_OP_PUT, rpc->crpc_dest,
854 &rpc->crpc_replymdh, ev);
856 LASSERT(rc == -ENOMEM);
857 ev->ev_fired = 1; /* no more event expected */
863 srpc_prepare_bulk(struct srpc_client_rpc *rpc)
865 struct srpc_bulk *bk = &rpc->crpc_bulk;
866 struct srpc_event *ev = &rpc->crpc_bulkev;
867 __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid;
871 LASSERT(bk->bk_niov <= LNET_MAX_IOV);
874 if (bk->bk_niov == 0)
877 opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
882 ev->ev_type = SRPC_BULK_REQ_RCVD;
884 *id = srpc_next_id();
886 rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
887 &bk->bk_iovs[0], bk->bk_niov, opt,
888 rpc->crpc_dest, &bk->bk_mdh, ev);
890 LASSERT(rc == -ENOMEM);
891 ev->ev_fired = 1; /* no more event expected */
897 srpc_do_bulk(struct srpc_server_rpc *rpc)
899 struct srpc_event *ev = &rpc->srpc_ev;
900 struct srpc_bulk *bk = rpc->srpc_bulk;
901 __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid;
907 opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
912 ev->ev_type = bk->bk_sink ? SRPC_BULK_GET_RPLD : SRPC_BULK_PUT_SENT;
914 rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, id,
915 &bk->bk_iovs[0], bk->bk_niov, opt,
916 rpc->srpc_peer, rpc->srpc_self,
919 ev->ev_fired = 1; /* no more event expected */
923 /* only called from srpc_handle_rpc */
925 srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status)
927 struct srpc_service_cd *scd = rpc->srpc_scd;
928 struct srpc_service *sv = scd->scd_svc;
929 struct srpc_buffer *buffer;
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);
944 spin_lock(&scd->scd_lock);
946 if (rpc->srpc_reqstbuf != NULL) {
947 /* NB might drop sv_lock in srpc_service_recycle_buffer, but
948 * sv won't go away for scd_rpc_active must not be empty
950 srpc_service_recycle_buffer(scd, rpc->srpc_reqstbuf);
951 rpc->srpc_reqstbuf = NULL;
954 list_del(&rpc->srpc_list); /* from scd->scd_rpc_active */
957 * No one can schedule me now since:
958 * - I'm not on scd_rpc_active.
959 * - all LNet events have been fired.
960 * Cancel pending schedules and prevent future schedule attempts:
962 LASSERT(rpc->srpc_ev.ev_fired);
963 rpc->srpc_wi.swi_state = SWI_STATE_DONE;
965 if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) {
966 buffer = list_first_entry(&scd->scd_buf_blocked,
967 struct srpc_buffer, buf_list);
968 list_del(&buffer->buf_list);
970 srpc_init_server_rpc(rpc, scd, buffer);
971 list_add_tail(&rpc->srpc_list, &scd->scd_rpc_active);
972 swi_schedule_workitem(&rpc->srpc_wi);
974 list_add(&rpc->srpc_list, &scd->scd_rpc_free);
977 spin_unlock(&scd->scd_lock);
980 /* handles an incoming RPC */
981 static void srpc_handle_rpc(struct swi_workitem *wi)
983 struct srpc_server_rpc *rpc = container_of(wi, struct srpc_server_rpc,
985 struct srpc_service_cd *scd = rpc->srpc_scd;
986 struct srpc_service *sv = scd->scd_svc;
987 struct srpc_event *ev = &rpc->srpc_ev;
990 spin_lock(&scd->scd_lock);
991 if (wi->swi_state == SWI_STATE_DONE) {
992 spin_unlock(&scd->scd_lock);
996 if (sv->sv_shuttingdown || rpc->srpc_aborted) {
997 wi->swi_state = SWI_STATE_DONE;
998 spin_unlock(&scd->scd_lock);
1000 if (rpc->srpc_bulk != NULL)
1001 LNetMDUnlink(rpc->srpc_bulk->bk_mdh);
1002 LNetMDUnlink(rpc->srpc_replymdh);
1004 if (ev->ev_fired) /* no more event, OK to finish */
1005 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; /* 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; /* 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);
1095 srpc_client_rpc_expired (void *data)
1097 struct srpc_client_rpc *rpc = data;
1099 CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
1100 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1104 spin_lock(&rpc->crpc_lock);
1106 rpc->crpc_timeout = 0;
1107 srpc_abort_rpc(rpc, -ETIMEDOUT);
1109 spin_unlock(&rpc->crpc_lock);
1111 atomic_inc(&RPC_STAT32(SRPC_RPC_EXPIRED));
1115 srpc_add_client_rpc_timer(struct srpc_client_rpc *rpc)
1117 struct stt_timer *timer = &rpc->crpc_timer;
1119 if (rpc->crpc_timeout == 0)
1122 INIT_LIST_HEAD(&timer->stt_list);
1123 timer->stt_data = rpc;
1124 timer->stt_func = srpc_client_rpc_expired;
1125 timer->stt_expires = ktime_get_real_seconds() + rpc->crpc_timeout;
1126 stt_add_timer(timer);
1130 * Called with rpc->crpc_lock held.
1132 * Upon exit the RPC expiry timer is not queued and the handler is not
1133 * running on any CPU.
1136 srpc_del_client_rpc_timer(struct srpc_client_rpc *rpc)
1138 /* timer not planted or already exploded */
1139 if (rpc->crpc_timeout == 0)
1142 /* timer successfully defused */
1143 if (stt_del_timer(&rpc->crpc_timer))
1146 /* timer detonated, wait for it to explode */
1147 while (rpc->crpc_timeout != 0) {
1148 spin_unlock(&rpc->crpc_lock);
1152 spin_lock(&rpc->crpc_lock);
1157 srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status)
1159 struct swi_workitem *wi = &rpc->crpc_wi;
1161 spin_lock(&rpc->crpc_lock);
1163 rpc->crpc_closed = 1;
1164 if (rpc->crpc_status == 0)
1165 rpc->crpc_status = status;
1167 srpc_del_client_rpc_timer(rpc);
1169 CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
1170 "Client RPC done: service %d, peer %s, status %s:%d:%d\n",
1171 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
1172 swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
1175 * No one can schedule me now since:
1176 * - RPC timer has been defused.
1177 * - all LNet events have been fired.
1178 * - crpc_closed has been set, preventing srpc_abort_rpc from
1180 * Cancel pending schedules and prevent future schedule attempts:
1182 LASSERT(!srpc_event_pending(rpc));
1183 wi->swi_state = SWI_STATE_DONE;
1185 spin_unlock(&rpc->crpc_lock);
1187 (*rpc->crpc_done)(rpc);
1190 /* sends an outgoing RPC */
1192 srpc_send_rpc(struct swi_workitem *wi)
1195 struct srpc_client_rpc *rpc;
1196 struct srpc_msg *reply;
1199 LASSERT(wi != NULL);
1201 rpc = container_of(wi, struct srpc_client_rpc, crpc_wi);
1203 LASSERT(rpc != NULL);
1204 LASSERT(wi == &rpc->crpc_wi);
1206 reply = &rpc->crpc_replymsg;
1207 do_bulk = rpc->crpc_bulk.bk_niov > 0;
1209 spin_lock(&rpc->crpc_lock);
1210 if (wi->swi_state == SWI_STATE_DONE) {
1211 spin_unlock(&rpc->crpc_lock);
1215 if (rpc->crpc_aborted) {
1216 spin_unlock(&rpc->crpc_lock);
1220 spin_unlock(&rpc->crpc_lock);
1222 switch (wi->swi_state) {
1225 case SWI_STATE_NEWBORN:
1226 LASSERT(!srpc_event_pending(rpc));
1228 rc = srpc_prepare_reply(rpc);
1230 srpc_client_rpc_done(rpc, rc);
1234 rc = srpc_prepare_bulk(rpc);
1238 wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
1239 rc = srpc_send_request(rpc);
1242 case SWI_STATE_REQUEST_SUBMITTED:
1243 /* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
1244 * order; however, they're processed in a strict order:
1245 * rqt, rpy, and bulk.
1247 if (!rpc->crpc_reqstev.ev_fired)
1250 rc = rpc->crpc_reqstev.ev_status;
1254 wi->swi_state = SWI_STATE_REQUEST_SENT;
1256 case SWI_STATE_REQUEST_SENT: {
1257 enum srpc_msg_type type;
1259 type = srpc_service2reply(rpc->crpc_service);
1261 if (!rpc->crpc_replyev.ev_fired)
1264 rc = rpc->crpc_replyev.ev_status;
1268 srpc_unpack_msg_hdr(reply);
1269 if (reply->msg_type != type ||
1270 (reply->msg_magic != SRPC_MSG_MAGIC &&
1271 reply->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
1272 CWARN("Bad message from %s: type %u (%d expected), magic %u (%d expected).\n",
1273 libcfs_id2str(rpc->crpc_dest),
1274 reply->msg_type, type,
1275 reply->msg_magic, SRPC_MSG_MAGIC);
1280 if (do_bulk && reply->msg_body.reply.status != 0) {
1281 CWARN("Remote error %d at %s, unlink bulk buffer in case peer didn't initiate bulk transfer\n",
1282 reply->msg_body.reply.status,
1283 libcfs_id2str(rpc->crpc_dest));
1284 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1287 wi->swi_state = SWI_STATE_REPLY_RECEIVED;
1290 case SWI_STATE_REPLY_RECEIVED:
1291 if (do_bulk && !rpc->crpc_bulkev.ev_fired)
1294 rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
1296 /* Bulk buffer was unlinked due to remote error. Clear error
1297 * since reply buffer still contains valid data.
1298 * NB rpc->crpc_done shouldn't look into bulk data in case of
1301 if (do_bulk && rpc->crpc_bulkev.ev_lnet == LNET_EVENT_UNLINK &&
1302 rpc->crpc_status == 0 && reply->msg_body.reply.status != 0)
1305 wi->swi_state = SWI_STATE_DONE;
1306 srpc_client_rpc_done(rpc, rc);
1311 spin_lock(&rpc->crpc_lock);
1312 srpc_abort_rpc(rpc, rc);
1313 spin_unlock(&rpc->crpc_lock);
1317 if (rpc->crpc_aborted) {
1318 LNetMDUnlink(rpc->crpc_reqstmdh);
1319 LNetMDUnlink(rpc->crpc_replymdh);
1320 LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
1322 if (!srpc_event_pending(rpc)) {
1323 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 %px, crpc %px, reqstev %px, replyev %px, bulkev %px\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_first_entry(&scd->scd_rpc_free,
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, true);
1699 case SRPC_STATE_NI_INIT: