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27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lnet/selftest/conctl.c
38 * Console framework rpcs
40 * Author: Liang Zhen <liang@whamcloud.com>
43 #include "../../include/linux/libcfs/libcfs.h"
44 #include "../../include/linux/lnet/lib-lnet.h"
49 void lstcon_rpc_stat_reply(lstcon_rpc_trans_t *, srpc_msg_t *,
50 lstcon_node_t *, lstcon_trans_stat_t *);
53 lstcon_rpc_done(srpc_client_rpc_t *rpc)
55 lstcon_rpc_t *crpc = (lstcon_rpc_t *)rpc->crpc_priv;
57 LASSERT(crpc && rpc == crpc->crp_rpc);
58 LASSERT(crpc->crp_posted && !crpc->crp_finished);
60 spin_lock(&rpc->crpc_lock);
62 if (!crpc->crp_trans) {
64 * Orphan RPC is not in any transaction,
65 * I'm just a poor body and nobody loves me
67 spin_unlock(&rpc->crpc_lock);
74 /* not an orphan RPC */
75 crpc->crp_finished = 1;
77 if (!crpc->crp_stamp) {
79 LASSERT(!crpc->crp_status);
81 crpc->crp_stamp = cfs_time_current();
82 crpc->crp_status = rpc->crpc_status;
85 /* wakeup (transaction)thread if I'm the last RPC in the transaction */
86 if (atomic_dec_and_test(&crpc->crp_trans->tas_remaining))
87 wake_up(&crpc->crp_trans->tas_waitq);
89 spin_unlock(&rpc->crpc_lock);
93 lstcon_rpc_init(lstcon_node_t *nd, int service, unsigned feats,
94 int bulk_npg, int bulk_len, int embedded, lstcon_rpc_t *crpc)
96 crpc->crp_rpc = sfw_create_rpc(nd->nd_id, service,
97 feats, bulk_npg, bulk_len,
98 lstcon_rpc_done, (void *)crpc);
102 crpc->crp_trans = NULL;
104 crpc->crp_posted = 0;
105 crpc->crp_finished = 0;
106 crpc->crp_unpacked = 0;
107 crpc->crp_status = 0;
109 crpc->crp_embedded = embedded;
110 INIT_LIST_HEAD(&crpc->crp_link);
112 atomic_inc(&console_session.ses_rpc_counter);
118 lstcon_rpc_prep(lstcon_node_t *nd, int service, unsigned feats,
119 int bulk_npg, int bulk_len, lstcon_rpc_t **crpcpp)
121 lstcon_rpc_t *crpc = NULL;
124 spin_lock(&console_session.ses_rpc_lock);
126 crpc = list_first_entry_or_null(&console_session.ses_rpc_freelist,
127 lstcon_rpc_t, crp_link);
129 list_del_init(&crpc->crp_link);
131 spin_unlock(&console_session.ses_rpc_lock);
134 LIBCFS_ALLOC(crpc, sizeof(*crpc));
139 rc = lstcon_rpc_init(nd, service, feats, bulk_npg, bulk_len, 0, crpc);
145 LIBCFS_FREE(crpc, sizeof(*crpc));
151 lstcon_rpc_put(lstcon_rpc_t *crpc)
153 srpc_bulk_t *bulk = &crpc->crp_rpc->crpc_bulk;
156 LASSERT(list_empty(&crpc->crp_link));
158 for (i = 0; i < bulk->bk_niov; i++) {
159 if (!bulk->bk_iovs[i].kiov_page)
162 __free_page(bulk->bk_iovs[i].kiov_page);
165 srpc_client_rpc_decref(crpc->crp_rpc);
167 if (crpc->crp_embedded) {
168 /* embedded RPC, don't recycle it */
169 memset(crpc, 0, sizeof(*crpc));
170 crpc->crp_embedded = 1;
173 spin_lock(&console_session.ses_rpc_lock);
175 list_add(&crpc->crp_link,
176 &console_session.ses_rpc_freelist);
178 spin_unlock(&console_session.ses_rpc_lock);
181 /* RPC is not alive now */
182 atomic_dec(&console_session.ses_rpc_counter);
186 lstcon_rpc_post(lstcon_rpc_t *crpc)
188 lstcon_rpc_trans_t *trans = crpc->crp_trans;
192 atomic_inc(&trans->tas_remaining);
193 crpc->crp_posted = 1;
195 sfw_post_rpc(crpc->crp_rpc);
199 lstcon_rpc_trans_name(int transop)
201 if (transop == LST_TRANS_SESNEW)
204 if (transop == LST_TRANS_SESEND)
207 if (transop == LST_TRANS_SESQRY)
210 if (transop == LST_TRANS_SESPING)
213 if (transop == LST_TRANS_TSBCLIADD)
216 if (transop == LST_TRANS_TSBSRVADD)
219 if (transop == LST_TRANS_TSBRUN)
222 if (transop == LST_TRANS_TSBSTOP)
225 if (transop == LST_TRANS_TSBCLIQRY)
228 if (transop == LST_TRANS_TSBSRVQRY)
231 if (transop == LST_TRANS_STATQRY)
238 lstcon_rpc_trans_prep(struct list_head *translist, int transop,
239 lstcon_rpc_trans_t **transpp)
241 lstcon_rpc_trans_t *trans;
244 list_for_each_entry(trans, translist, tas_link) {
246 * Can't enqueue two private transaction on
249 if ((trans->tas_opc & transop) == LST_TRANS_PRIVATE)
254 /* create a trans group */
255 LIBCFS_ALLOC(trans, sizeof(*trans));
259 trans->tas_opc = transop;
262 INIT_LIST_HEAD(&trans->tas_olink);
264 list_add_tail(&trans->tas_olink, translist);
266 list_add_tail(&trans->tas_link, &console_session.ses_trans_list);
268 INIT_LIST_HEAD(&trans->tas_rpcs_list);
269 atomic_set(&trans->tas_remaining, 0);
270 init_waitqueue_head(&trans->tas_waitq);
272 spin_lock(&console_session.ses_rpc_lock);
273 trans->tas_features = console_session.ses_features;
274 spin_unlock(&console_session.ses_rpc_lock);
281 lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *crpc)
283 list_add_tail(&crpc->crp_link, &trans->tas_rpcs_list);
284 crpc->crp_trans = trans;
288 lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error)
290 srpc_client_rpc_t *rpc;
294 list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
297 spin_lock(&rpc->crpc_lock);
299 if (!crpc->crp_posted || /* not posted */
300 crpc->crp_stamp) { /* rpc done or aborted already */
301 if (!crpc->crp_stamp) {
302 crpc->crp_stamp = cfs_time_current();
303 crpc->crp_status = -EINTR;
305 spin_unlock(&rpc->crpc_lock);
309 crpc->crp_stamp = cfs_time_current();
310 crpc->crp_status = error;
312 spin_unlock(&rpc->crpc_lock);
316 if (error != -ETIMEDOUT)
320 if (cfs_time_after(nd->nd_stamp, crpc->crp_stamp))
323 nd->nd_stamp = crpc->crp_stamp;
324 nd->nd_state = LST_NODE_DOWN;
329 lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans)
331 if (console_session.ses_shutdown &&
332 !list_empty(&trans->tas_olink)) /* Not an end session RPC */
335 return !atomic_read(&trans->tas_remaining) ? 1 : 0;
339 lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout)
344 if (list_empty(&trans->tas_rpcs_list))
347 if (timeout < LST_TRANS_MIN_TIMEOUT)
348 timeout = LST_TRANS_MIN_TIMEOUT;
350 CDEBUG(D_NET, "Transaction %s started\n",
351 lstcon_rpc_trans_name(trans->tas_opc));
353 /* post all requests */
354 list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
355 LASSERT(!crpc->crp_posted);
357 lstcon_rpc_post(crpc);
360 mutex_unlock(&console_session.ses_mutex);
362 rc = wait_event_interruptible_timeout(trans->tas_waitq,
363 lstcon_rpc_trans_check(trans),
364 cfs_time_seconds(timeout));
365 rc = (rc > 0) ? 0 : ((rc < 0) ? -EINTR : -ETIMEDOUT);
367 mutex_lock(&console_session.ses_mutex);
369 if (console_session.ses_shutdown)
372 if (rc || atomic_read(&trans->tas_remaining)) {
373 /* treat short timeout as canceled */
374 if (rc == -ETIMEDOUT && timeout < LST_TRANS_MIN_TIMEOUT * 2)
377 lstcon_rpc_trans_abort(trans, rc);
380 CDEBUG(D_NET, "Transaction %s stopped: %d\n",
381 lstcon_rpc_trans_name(trans->tas_opc), rc);
383 lstcon_rpc_trans_stat(trans, lstcon_trans_stat());
389 lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp)
391 lstcon_node_t *nd = crpc->crp_node;
392 srpc_client_rpc_t *rpc = crpc->crp_rpc;
393 srpc_generic_reply_t *rep;
396 LASSERT(crpc->crp_stamp);
398 if (crpc->crp_status) {
400 return crpc->crp_status;
403 *msgpp = &rpc->crpc_replymsg;
404 if (!crpc->crp_unpacked) {
405 sfw_unpack_message(*msgpp);
406 crpc->crp_unpacked = 1;
409 if (cfs_time_after(nd->nd_stamp, crpc->crp_stamp))
412 nd->nd_stamp = crpc->crp_stamp;
413 rep = &(*msgpp)->msg_body.reply;
415 if (rep->sid.ses_nid == LNET_NID_ANY)
416 nd->nd_state = LST_NODE_UNKNOWN;
417 else if (lstcon_session_match(rep->sid))
418 nd->nd_state = LST_NODE_ACTIVE;
420 nd->nd_state = LST_NODE_BUSY;
426 lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat)
434 memset(stat, 0, sizeof(*stat));
436 list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
437 lstcon_rpc_stat_total(stat, 1);
439 LASSERT(crpc->crp_stamp);
441 error = lstcon_rpc_get_reply(crpc, &rep);
443 lstcon_rpc_stat_failure(stat, 1);
444 if (!stat->trs_rpc_errno)
445 stat->trs_rpc_errno = -error;
450 lstcon_rpc_stat_success(stat, 1);
452 lstcon_rpc_stat_reply(trans, rep, crpc->crp_node, stat);
455 if (trans->tas_opc == LST_TRANS_SESNEW && !stat->trs_fwk_errno) {
456 stat->trs_fwk_errno =
457 lstcon_session_feats_check(trans->tas_features);
460 CDEBUG(D_NET, "transaction %s : success %d, failure %d, total %d, RPC error(%d), Framework error(%d)\n",
461 lstcon_rpc_trans_name(trans->tas_opc),
462 lstcon_rpc_stat_success(stat, 0),
463 lstcon_rpc_stat_failure(stat, 0),
464 lstcon_rpc_stat_total(stat, 0),
465 stat->trs_rpc_errno, stat->trs_fwk_errno);
469 lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
470 struct list_head __user *head_up,
471 lstcon_rpc_readent_func_t readent)
473 struct list_head tmp;
474 struct list_head __user *next;
475 lstcon_rpc_ent_t *ent;
476 srpc_generic_reply_t *rep;
488 list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
489 if (copy_from_user(&tmp, next,
490 sizeof(struct list_head)))
493 if (tmp.next == head_up)
498 ent = list_entry(next, lstcon_rpc_ent_t, rpe_link);
500 LASSERT(crpc->crp_stamp);
502 error = lstcon_rpc_get_reply(crpc, &msg);
506 dur = (long)cfs_time_sub(crpc->crp_stamp,
507 (unsigned long)console_session.ses_id.ses_stamp);
508 jiffies_to_timeval(dur, &tv);
510 if (copy_to_user(&ent->rpe_peer, &nd->nd_id,
511 sizeof(lnet_process_id_t)) ||
512 copy_to_user(&ent->rpe_stamp, &tv, sizeof(tv)) ||
513 copy_to_user(&ent->rpe_state, &nd->nd_state,
514 sizeof(nd->nd_state)) ||
515 copy_to_user(&ent->rpe_rpc_errno, &error,
523 rep = (srpc_generic_reply_t *)&msg->msg_body.reply;
525 if (copy_to_user(&ent->rpe_sid, &rep->sid, sizeof(lst_sid_t)) ||
526 copy_to_user(&ent->rpe_fwk_errno, &rep->status,
527 sizeof(rep->status)))
533 error = readent(trans->tas_opc, msg, ent);
543 lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans)
545 srpc_client_rpc_t *rpc;
550 list_for_each_entry_safe(crpc, tmp, &trans->tas_rpcs_list, crp_link) {
553 spin_lock(&rpc->crpc_lock);
555 /* free it if not posted or finished already */
556 if (!crpc->crp_posted || crpc->crp_finished) {
557 spin_unlock(&rpc->crpc_lock);
559 list_del_init(&crpc->crp_link);
560 lstcon_rpc_put(crpc);
566 * rpcs can be still not callbacked (even LNetMDUnlink is called)
567 * because huge timeout for inaccessible network, don't make
568 * user wait for them, just abandon them, they will be recycled
571 LASSERT(crpc->crp_status);
573 crpc->crp_node = NULL;
574 crpc->crp_trans = NULL;
575 list_del_init(&crpc->crp_link);
578 spin_unlock(&rpc->crpc_lock);
580 atomic_dec(&trans->tas_remaining);
583 LASSERT(!atomic_read(&trans->tas_remaining));
585 list_del(&trans->tas_link);
586 if (!list_empty(&trans->tas_olink))
587 list_del(&trans->tas_olink);
589 CDEBUG(D_NET, "Transaction %s destroyed with %d pending RPCs\n",
590 lstcon_rpc_trans_name(trans->tas_opc), count);
592 LIBCFS_FREE(trans, sizeof(*trans));
596 lstcon_sesrpc_prep(lstcon_node_t *nd, int transop,
597 unsigned feats, lstcon_rpc_t **crpc)
599 srpc_mksn_reqst_t *msrq;
600 srpc_rmsn_reqst_t *rsrq;
604 case LST_TRANS_SESNEW:
605 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_MAKE_SESSION,
610 msrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.mksn_reqst;
611 msrq->mksn_sid = console_session.ses_id;
612 msrq->mksn_force = console_session.ses_force;
613 strlcpy(msrq->mksn_name, console_session.ses_name,
614 sizeof(msrq->mksn_name));
617 case LST_TRANS_SESEND:
618 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_REMOVE_SESSION,
623 rsrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.rmsn_reqst;
624 rsrq->rmsn_sid = console_session.ses_id;
635 lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc)
637 srpc_debug_reqst_t *drq;
640 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_DEBUG, feats, 0, 0, crpc);
644 drq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.dbg_reqst;
646 drq->dbg_sid = console_session.ses_id;
653 lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
654 lstcon_tsb_hdr_t *tsb, lstcon_rpc_t **crpc)
656 lstcon_batch_t *batch;
657 srpc_batch_reqst_t *brq;
660 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_BATCH, feats, 0, 0, crpc);
664 brq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.bat_reqst;
666 brq->bar_sid = console_session.ses_id;
667 brq->bar_bid = tsb->tsb_id;
668 brq->bar_testidx = tsb->tsb_index;
669 brq->bar_opc = transop == LST_TRANS_TSBRUN ? SRPC_BATCH_OPC_RUN :
670 (transop == LST_TRANS_TSBSTOP ? SRPC_BATCH_OPC_STOP :
671 SRPC_BATCH_OPC_QUERY);
673 if (transop != LST_TRANS_TSBRUN &&
674 transop != LST_TRANS_TSBSTOP)
677 LASSERT(!tsb->tsb_index);
679 batch = (lstcon_batch_t *)tsb;
680 brq->bar_arg = batch->bat_arg;
686 lstcon_statrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc)
688 srpc_stat_reqst_t *srq;
691 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_QUERY_STAT, feats, 0, 0, crpc);
695 srq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.stat_reqst;
697 srq->str_sid = console_session.ses_id;
698 srq->str_type = 0; /* XXX remove it */
703 static lnet_process_id_packed_t *
704 lstcon_next_id(int idx, int nkiov, lnet_kiov_t *kiov)
706 lnet_process_id_packed_t *pid;
709 i = idx / SFW_ID_PER_PAGE;
713 pid = (lnet_process_id_packed_t *)page_address(kiov[i].kiov_page);
715 return &pid[idx % SFW_ID_PER_PAGE];
719 lstcon_dstnodes_prep(lstcon_group_t *grp, int idx,
720 int dist, int span, int nkiov, lnet_kiov_t *kiov)
722 lnet_process_id_packed_t *pid;
723 lstcon_ndlink_t *ndl;
731 LASSERT(grp->grp_nnode >= 1);
733 if (span > grp->grp_nnode)
736 start = ((idx / dist) * span) % grp->grp_nnode;
737 end = ((idx / dist) * span + span - 1) % grp->grp_nnode;
739 list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
746 if (i > (end >= start ? end : grp->grp_nnode))
749 pid = lstcon_next_id((i - start), nkiov, kiov);
750 pid->nid = nd->nd_id.nid;
751 pid->pid = nd->nd_id.pid;
755 if (start <= end) /* done */
758 list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
759 if (i > grp->grp_nnode + end)
763 pid = lstcon_next_id((i - start), nkiov, kiov);
764 pid->nid = nd->nd_id.nid;
765 pid->pid = nd->nd_id.pid;
773 lstcon_pingrpc_prep(lst_test_ping_param_t *param, srpc_test_reqst_t *req)
775 test_ping_req_t *prq = &req->tsr_u.ping;
777 prq->png_size = param->png_size;
778 prq->png_flags = param->png_flags;
784 lstcon_bulkrpc_v0_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req)
786 test_bulk_req_t *brq = &req->tsr_u.bulk_v0;
788 brq->blk_opc = param->blk_opc;
789 brq->blk_npg = (param->blk_size + PAGE_CACHE_SIZE - 1) /
791 brq->blk_flags = param->blk_flags;
797 lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req)
799 test_bulk_req_v1_t *brq = &req->tsr_u.bulk_v1;
801 brq->blk_opc = param->blk_opc;
802 brq->blk_flags = param->blk_flags;
803 brq->blk_len = param->blk_size;
804 brq->blk_offset = 0; /* reserved */
810 lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
811 lstcon_test_t *test, lstcon_rpc_t **crpc)
813 lstcon_group_t *sgrp = test->tes_src_grp;
814 lstcon_group_t *dgrp = test->tes_dst_grp;
815 srpc_test_reqst_t *trq;
822 if (transop == LST_TRANS_TSBCLIADD) {
823 npg = sfw_id_pages(test->tes_span);
824 nob = !(feats & LST_FEAT_BULK_LEN) ?
825 npg * PAGE_CACHE_SIZE :
826 sizeof(lnet_process_id_packed_t) * test->tes_span;
829 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_TEST, feats, npg, nob, crpc);
833 trq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.tes_reqst;
835 if (transop == LST_TRANS_TSBSRVADD) {
836 int ndist = (sgrp->grp_nnode + test->tes_dist - 1) /
838 int nspan = (dgrp->grp_nnode + test->tes_span - 1) /
840 int nmax = (ndist + nspan - 1) / nspan;
843 trq->tsr_loop = nmax * test->tes_dist * test->tes_concur;
846 bulk = &(*crpc)->crp_rpc->crpc_bulk;
848 for (i = 0; i < npg; i++) {
853 len = !(feats & LST_FEAT_BULK_LEN) ?
855 min_t(int, nob, PAGE_CACHE_SIZE);
858 bulk->bk_iovs[i].kiov_offset = 0;
859 bulk->bk_iovs[i].kiov_len = len;
860 bulk->bk_iovs[i].kiov_page =
861 alloc_page(GFP_KERNEL);
863 if (!bulk->bk_iovs[i].kiov_page) {
864 lstcon_rpc_put(*crpc);
871 LASSERT(transop == LST_TRANS_TSBCLIADD);
873 rc = lstcon_dstnodes_prep(test->tes_dst_grp,
877 npg, &bulk->bk_iovs[0]);
879 lstcon_rpc_put(*crpc);
883 trq->tsr_ndest = test->tes_span;
884 trq->tsr_loop = test->tes_loop;
887 trq->tsr_sid = console_session.ses_id;
888 trq->tsr_bid = test->tes_hdr.tsb_id;
889 trq->tsr_concur = test->tes_concur;
890 trq->tsr_is_client = (transop == LST_TRANS_TSBCLIADD) ? 1 : 0;
891 trq->tsr_stop_onerr = !!test->tes_stop_onerr;
893 switch (test->tes_type) {
895 trq->tsr_service = SRPC_SERVICE_PING;
896 rc = lstcon_pingrpc_prep((lst_test_ping_param_t *)
897 &test->tes_param[0], trq);
901 trq->tsr_service = SRPC_SERVICE_BRW;
902 if (!(feats & LST_FEAT_BULK_LEN)) {
903 rc = lstcon_bulkrpc_v0_prep((lst_test_bulk_param_t *)
904 &test->tes_param[0], trq);
906 rc = lstcon_bulkrpc_v1_prep((lst_test_bulk_param_t *)
907 &test->tes_param[0], trq);
920 lstcon_sesnew_stat_reply(lstcon_rpc_trans_t *trans,
921 lstcon_node_t *nd, srpc_msg_t *reply)
923 srpc_mksn_reply_t *mksn_rep = &reply->msg_body.mksn_reply;
924 int status = mksn_rep->mksn_status;
927 (reply->msg_ses_feats & ~LST_FEATS_MASK)) {
928 mksn_rep->mksn_status = EPROTO;
932 if (status == EPROTO) {
933 CNETERR("session protocol error from %s: %u\n",
934 libcfs_nid2str(nd->nd_id.nid),
935 reply->msg_ses_feats);
941 if (!trans->tas_feats_updated) {
942 spin_lock(&console_session.ses_rpc_lock);
943 if (!trans->tas_feats_updated) { /* recheck with lock */
944 trans->tas_feats_updated = 1;
945 trans->tas_features = reply->msg_ses_feats;
947 spin_unlock(&console_session.ses_rpc_lock);
950 if (reply->msg_ses_feats != trans->tas_features) {
951 CNETERR("Framework features %x from %s is different with features on this transaction: %x\n",
952 reply->msg_ses_feats, libcfs_nid2str(nd->nd_id.nid),
953 trans->tas_features);
954 mksn_rep->mksn_status = EPROTO;
959 /* session timeout on remote node */
960 nd->nd_timeout = mksn_rep->mksn_timeout;
967 lstcon_rpc_stat_reply(lstcon_rpc_trans_t *trans, srpc_msg_t *msg,
968 lstcon_node_t *nd, lstcon_trans_stat_t *stat)
970 srpc_rmsn_reply_t *rmsn_rep;
971 srpc_debug_reply_t *dbg_rep;
972 srpc_batch_reply_t *bat_rep;
973 srpc_test_reply_t *test_rep;
974 srpc_stat_reply_t *stat_rep;
977 switch (trans->tas_opc) {
978 case LST_TRANS_SESNEW:
979 rc = lstcon_sesnew_stat_reply(trans, nd, msg);
981 lstcon_sesop_stat_success(stat, 1);
985 lstcon_sesop_stat_failure(stat, 1);
988 case LST_TRANS_SESEND:
989 rmsn_rep = &msg->msg_body.rmsn_reply;
990 /* ESRCH is not an error for end session */
991 if (!rmsn_rep->rmsn_status ||
992 rmsn_rep->rmsn_status == ESRCH) {
993 lstcon_sesop_stat_success(stat, 1);
997 lstcon_sesop_stat_failure(stat, 1);
998 rc = rmsn_rep->rmsn_status;
1001 case LST_TRANS_SESQRY:
1002 case LST_TRANS_SESPING:
1003 dbg_rep = &msg->msg_body.dbg_reply;
1005 if (dbg_rep->dbg_status == ESRCH) {
1006 lstcon_sesqry_stat_unknown(stat, 1);
1010 if (lstcon_session_match(dbg_rep->dbg_sid))
1011 lstcon_sesqry_stat_active(stat, 1);
1013 lstcon_sesqry_stat_busy(stat, 1);
1016 case LST_TRANS_TSBRUN:
1017 case LST_TRANS_TSBSTOP:
1018 bat_rep = &msg->msg_body.bat_reply;
1020 if (!bat_rep->bar_status) {
1021 lstcon_tsbop_stat_success(stat, 1);
1025 if (bat_rep->bar_status == EPERM &&
1026 trans->tas_opc == LST_TRANS_TSBSTOP) {
1027 lstcon_tsbop_stat_success(stat, 1);
1031 lstcon_tsbop_stat_failure(stat, 1);
1032 rc = bat_rep->bar_status;
1035 case LST_TRANS_TSBCLIQRY:
1036 case LST_TRANS_TSBSRVQRY:
1037 bat_rep = &msg->msg_body.bat_reply;
1039 if (bat_rep->bar_active)
1040 lstcon_tsbqry_stat_run(stat, 1);
1042 lstcon_tsbqry_stat_idle(stat, 1);
1044 if (!bat_rep->bar_status)
1047 lstcon_tsbqry_stat_failure(stat, 1);
1048 rc = bat_rep->bar_status;
1051 case LST_TRANS_TSBCLIADD:
1052 case LST_TRANS_TSBSRVADD:
1053 test_rep = &msg->msg_body.tes_reply;
1055 if (!test_rep->tsr_status) {
1056 lstcon_tsbop_stat_success(stat, 1);
1060 lstcon_tsbop_stat_failure(stat, 1);
1061 rc = test_rep->tsr_status;
1064 case LST_TRANS_STATQRY:
1065 stat_rep = &msg->msg_body.stat_reply;
1067 if (!stat_rep->str_status) {
1068 lstcon_statqry_stat_success(stat, 1);
1072 lstcon_statqry_stat_failure(stat, 1);
1073 rc = stat_rep->str_status;
1080 if (!stat->trs_fwk_errno)
1081 stat->trs_fwk_errno = rc;
1085 lstcon_rpc_trans_ndlist(struct list_head *ndlist,
1086 struct list_head *translist, int transop,
1087 void *arg, lstcon_rpc_cond_func_t condition,
1088 lstcon_rpc_trans_t **transpp)
1090 lstcon_rpc_trans_t *trans;
1091 lstcon_ndlink_t *ndl;
1097 /* Creating session RPG for list of nodes */
1099 rc = lstcon_rpc_trans_prep(translist, transop, &trans);
1101 CERROR("Can't create transaction %d: %d\n", transop, rc);
1105 feats = trans->tas_features;
1106 list_for_each_entry(ndl, ndlist, ndl_link) {
1107 rc = !condition ? 1 :
1108 condition(transop, ndl->ndl_node, arg);
1114 CDEBUG(D_NET, "Condition error while creating RPC for transaction %d: %d\n",
1122 case LST_TRANS_SESNEW:
1123 case LST_TRANS_SESEND:
1124 rc = lstcon_sesrpc_prep(nd, transop, feats, &rpc);
1126 case LST_TRANS_SESQRY:
1127 case LST_TRANS_SESPING:
1128 rc = lstcon_dbgrpc_prep(nd, feats, &rpc);
1130 case LST_TRANS_TSBCLIADD:
1131 case LST_TRANS_TSBSRVADD:
1132 rc = lstcon_testrpc_prep(nd, transop, feats,
1133 (lstcon_test_t *)arg, &rpc);
1135 case LST_TRANS_TSBRUN:
1136 case LST_TRANS_TSBSTOP:
1137 case LST_TRANS_TSBCLIQRY:
1138 case LST_TRANS_TSBSRVQRY:
1139 rc = lstcon_batrpc_prep(nd, transop, feats,
1140 (lstcon_tsb_hdr_t *)arg, &rpc);
1142 case LST_TRANS_STATQRY:
1143 rc = lstcon_statrpc_prep(nd, feats, &rpc);
1151 CERROR("Failed to create RPC for transaction %s: %d\n",
1152 lstcon_rpc_trans_name(transop), rc);
1156 lstcon_rpc_trans_addreq(trans, rpc);
1164 lstcon_rpc_trans_destroy(trans);
1170 lstcon_rpc_pinger(void *arg)
1172 struct stt_timer *ptimer = (struct stt_timer *)arg;
1173 lstcon_rpc_trans_t *trans;
1176 srpc_debug_reqst_t *drq;
1177 lstcon_ndlink_t *ndl;
1183 /* RPC pinger is a special case of transaction,
1184 * it's called by timer at 8 seconds interval.
1186 mutex_lock(&console_session.ses_mutex);
1188 if (console_session.ses_shutdown || console_session.ses_expired) {
1189 mutex_unlock(&console_session.ses_mutex);
1193 if (!console_session.ses_expired &&
1194 ktime_get_real_seconds() - console_session.ses_laststamp >
1195 (time64_t)console_session.ses_timeout)
1196 console_session.ses_expired = 1;
1198 trans = console_session.ses_ping;
1202 list_for_each_entry(ndl, &console_session.ses_ndl_list, ndl_link) {
1205 if (console_session.ses_expired) {
1206 /* idle console, end session on all nodes */
1207 if (nd->nd_state != LST_NODE_ACTIVE)
1210 rc = lstcon_sesrpc_prep(nd, LST_TRANS_SESEND,
1211 trans->tas_features, &crpc);
1213 CERROR("Out of memory\n");
1217 lstcon_rpc_trans_addreq(trans, crpc);
1218 lstcon_rpc_post(crpc);
1223 crpc = &nd->nd_ping;
1225 if (crpc->crp_rpc) {
1226 LASSERT(crpc->crp_trans == trans);
1227 LASSERT(!list_empty(&crpc->crp_link));
1229 spin_lock(&crpc->crp_rpc->crpc_lock);
1231 LASSERT(crpc->crp_posted);
1233 if (!crpc->crp_finished) {
1235 spin_unlock(&crpc->crp_rpc->crpc_lock);
1239 spin_unlock(&crpc->crp_rpc->crpc_lock);
1241 lstcon_rpc_get_reply(crpc, &rep);
1243 list_del_init(&crpc->crp_link);
1245 lstcon_rpc_put(crpc);
1248 if (nd->nd_state != LST_NODE_ACTIVE)
1251 intv = (jiffies - nd->nd_stamp) / msecs_to_jiffies(MSEC_PER_SEC);
1252 if (intv < nd->nd_timeout / 2)
1255 rc = lstcon_rpc_init(nd, SRPC_SERVICE_DEBUG,
1256 trans->tas_features, 0, 0, 1, crpc);
1258 CERROR("Out of memory\n");
1262 drq = &crpc->crp_rpc->crpc_reqstmsg.msg_body.dbg_reqst;
1264 drq->dbg_sid = console_session.ses_id;
1267 lstcon_rpc_trans_addreq(trans, crpc);
1268 lstcon_rpc_post(crpc);
1273 if (console_session.ses_expired) {
1274 mutex_unlock(&console_session.ses_mutex);
1278 CDEBUG(D_NET, "Ping %d nodes in session\n", count);
1280 ptimer->stt_expires = ktime_get_real_seconds() + LST_PING_INTERVAL;
1281 stt_add_timer(ptimer);
1283 mutex_unlock(&console_session.ses_mutex);
1287 lstcon_rpc_pinger_start(void)
1289 struct stt_timer *ptimer;
1292 LASSERT(list_empty(&console_session.ses_rpc_freelist));
1293 LASSERT(!atomic_read(&console_session.ses_rpc_counter));
1295 rc = lstcon_rpc_trans_prep(NULL, LST_TRANS_SESPING,
1296 &console_session.ses_ping);
1298 CERROR("Failed to create console pinger\n");
1302 ptimer = &console_session.ses_ping_timer;
1303 ptimer->stt_expires = ktime_get_real_seconds() + LST_PING_INTERVAL;
1305 stt_add_timer(ptimer);
1311 lstcon_rpc_pinger_stop(void)
1313 LASSERT(console_session.ses_shutdown);
1315 stt_del_timer(&console_session.ses_ping_timer);
1317 lstcon_rpc_trans_abort(console_session.ses_ping, -ESHUTDOWN);
1318 lstcon_rpc_trans_stat(console_session.ses_ping, lstcon_trans_stat());
1319 lstcon_rpc_trans_destroy(console_session.ses_ping);
1321 memset(lstcon_trans_stat(), 0, sizeof(lstcon_trans_stat_t));
1323 console_session.ses_ping = NULL;
1327 lstcon_rpc_cleanup_wait(void)
1329 lstcon_rpc_trans_t *trans;
1332 struct list_head *pacer;
1333 struct list_head zlist;
1335 /* Called with hold of global mutex */
1337 LASSERT(console_session.ses_shutdown);
1339 while (!list_empty(&console_session.ses_trans_list)) {
1340 list_for_each(pacer, &console_session.ses_trans_list) {
1341 trans = list_entry(pacer, lstcon_rpc_trans_t,
1344 CDEBUG(D_NET, "Session closed, wakeup transaction %s\n",
1345 lstcon_rpc_trans_name(trans->tas_opc));
1347 wake_up(&trans->tas_waitq);
1350 mutex_unlock(&console_session.ses_mutex);
1352 CWARN("Session is shutting down, waiting for termination of transactions\n");
1353 set_current_state(TASK_UNINTERRUPTIBLE);
1354 schedule_timeout(cfs_time_seconds(1));
1356 mutex_lock(&console_session.ses_mutex);
1359 spin_lock(&console_session.ses_rpc_lock);
1361 lst_wait_until(!atomic_read(&console_session.ses_rpc_counter),
1362 console_session.ses_rpc_lock,
1363 "Network is not accessible or target is down, waiting for %d console RPCs to being recycled\n",
1364 atomic_read(&console_session.ses_rpc_counter));
1366 list_add(&zlist, &console_session.ses_rpc_freelist);
1367 list_del_init(&console_session.ses_rpc_freelist);
1369 spin_unlock(&console_session.ses_rpc_lock);
1371 list_for_each_entry_safe(crpc, temp, &zlist, crp_link) {
1372 list_del(&crpc->crp_link);
1373 LIBCFS_FREE(crpc, sizeof(lstcon_rpc_t));
1378 lstcon_rpc_module_init(void)
1380 INIT_LIST_HEAD(&console_session.ses_ping_timer.stt_list);
1381 console_session.ses_ping_timer.stt_func = lstcon_rpc_pinger;
1382 console_session.ses_ping_timer.stt_data = &console_session.ses_ping_timer;
1384 console_session.ses_ping = NULL;
1386 spin_lock_init(&console_session.ses_rpc_lock);
1387 atomic_set(&console_session.ses_rpc_counter, 0);
1388 INIT_LIST_HEAD(&console_session.ses_rpc_freelist);
1394 lstcon_rpc_module_fini(void)
1396 LASSERT(list_empty(&console_session.ses_rpc_freelist));
1397 LASSERT(!atomic_read(&console_session.ses_rpc_counter));