| /* |
| * GPL HEADER START |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 only, |
| * as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License version 2 for more details (a copy is included |
| * in the LICENSE file that accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License |
| * version 2 along with this program; If not, see |
| * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| * GPL HEADER END |
| */ |
| /* |
| * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| * |
| * Copyright (c) 2012, Intel Corporation. |
| */ |
| /* |
| * This file is part of Lustre, http://www.lustre.org/ |
| * Lustre is a trademark of Sun Microsystems, Inc. |
| * |
| * lnet/selftest/framework.c |
| * |
| * Author: Isaac Huang <isaac@clusterfs.com> |
| * Author: Liang Zhen <liangzhen@clusterfs.com> |
| */ |
| |
| #define DEBUG_SUBSYSTEM S_LNET |
| |
| #include "selftest.h" |
| |
| lst_sid_t LST_INVALID_SID = {LNET_NID_ANY, -1}; |
| |
| static int session_timeout = 100; |
| module_param(session_timeout, int, 0444); |
| MODULE_PARM_DESC(session_timeout, "test session timeout in seconds (100 by default, 0 == never)"); |
| |
| static int rpc_timeout = 64; |
| module_param(rpc_timeout, int, 0644); |
| MODULE_PARM_DESC(rpc_timeout, "rpc timeout in seconds (64 by default, 0 == never)"); |
| |
| #define sfw_unpack_id(id) \ |
| do { \ |
| __swab64s(&(id).nid); \ |
| __swab32s(&(id).pid); \ |
| } while (0) |
| |
| #define sfw_unpack_sid(sid) \ |
| do { \ |
| __swab64s(&(sid).ses_nid); \ |
| __swab64s(&(sid).ses_stamp); \ |
| } while (0) |
| |
| #define sfw_unpack_fw_counters(fc) \ |
| do { \ |
| __swab32s(&(fc).running_ms); \ |
| __swab32s(&(fc).active_batches); \ |
| __swab32s(&(fc).zombie_sessions); \ |
| __swab32s(&(fc).brw_errors); \ |
| __swab32s(&(fc).ping_errors); \ |
| } while (0) |
| |
| #define sfw_unpack_rpc_counters(rc) \ |
| do { \ |
| __swab32s(&(rc).errors); \ |
| __swab32s(&(rc).rpcs_sent); \ |
| __swab32s(&(rc).rpcs_rcvd); \ |
| __swab32s(&(rc).rpcs_dropped); \ |
| __swab32s(&(rc).rpcs_expired); \ |
| __swab64s(&(rc).bulk_get); \ |
| __swab64s(&(rc).bulk_put); \ |
| } while (0) |
| |
| #define sfw_unpack_lnet_counters(lc) \ |
| do { \ |
| __swab32s(&(lc).errors); \ |
| __swab32s(&(lc).msgs_max); \ |
| __swab32s(&(lc).msgs_alloc); \ |
| __swab32s(&(lc).send_count); \ |
| __swab32s(&(lc).recv_count); \ |
| __swab32s(&(lc).drop_count); \ |
| __swab32s(&(lc).route_count); \ |
| __swab64s(&(lc).send_length); \ |
| __swab64s(&(lc).recv_length); \ |
| __swab64s(&(lc).drop_length); \ |
| __swab64s(&(lc).route_length); \ |
| } while (0) |
| |
| #define sfw_test_active(t) (atomic_read(&(t)->tsi_nactive) != 0) |
| #define sfw_batch_active(b) (atomic_read(&(b)->bat_nactive) != 0) |
| |
| static struct smoketest_framework { |
| struct list_head fw_zombie_rpcs; /* RPCs to be recycled */ |
| struct list_head fw_zombie_sessions; /* stopping sessions */ |
| struct list_head fw_tests; /* registered test cases */ |
| atomic_t fw_nzombies; /* # zombie sessions */ |
| spinlock_t fw_lock; /* serialise */ |
| sfw_session_t *fw_session; /* _the_ session */ |
| int fw_shuttingdown; /* shutdown in progress */ |
| srpc_server_rpc_t *fw_active_srpc; /* running RPC */ |
| } sfw_data; |
| |
| /* forward ref's */ |
| int sfw_stop_batch(sfw_batch_t *tsb, int force); |
| void sfw_destroy_session(sfw_session_t *sn); |
| |
| static inline sfw_test_case_t * |
| sfw_find_test_case(int id) |
| { |
| sfw_test_case_t *tsc; |
| |
| LASSERT(id <= SRPC_SERVICE_MAX_ID); |
| LASSERT(id > SRPC_FRAMEWORK_SERVICE_MAX_ID); |
| |
| list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) { |
| if (tsc->tsc_srv_service->sv_id == id) |
| return tsc; |
| } |
| |
| return NULL; |
| } |
| |
| static int |
| sfw_register_test(srpc_service_t *service, sfw_test_client_ops_t *cliops) |
| { |
| sfw_test_case_t *tsc; |
| |
| if (sfw_find_test_case(service->sv_id) != NULL) { |
| CERROR("Failed to register test %s (%d)\n", |
| service->sv_name, service->sv_id); |
| return -EEXIST; |
| } |
| |
| LIBCFS_ALLOC(tsc, sizeof(sfw_test_case_t)); |
| if (tsc == NULL) |
| return -ENOMEM; |
| |
| tsc->tsc_cli_ops = cliops; |
| tsc->tsc_srv_service = service; |
| |
| list_add_tail(&tsc->tsc_list, &sfw_data.fw_tests); |
| return 0; |
| } |
| |
| static void |
| sfw_add_session_timer(void) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| stt_timer_t *timer = &sn->sn_timer; |
| |
| LASSERT(!sfw_data.fw_shuttingdown); |
| |
| if (sn == NULL || sn->sn_timeout == 0) |
| return; |
| |
| LASSERT(!sn->sn_timer_active); |
| |
| sn->sn_timer_active = 1; |
| timer->stt_expires = cfs_time_add(sn->sn_timeout, |
| get_seconds()); |
| stt_add_timer(timer); |
| return; |
| } |
| |
| static int |
| sfw_del_session_timer(void) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| |
| if (sn == NULL || !sn->sn_timer_active) |
| return 0; |
| |
| LASSERT(sn->sn_timeout != 0); |
| |
| if (stt_del_timer(&sn->sn_timer)) { /* timer defused */ |
| sn->sn_timer_active = 0; |
| return 0; |
| } |
| |
| return EBUSY; /* racing with sfw_session_expired() */ |
| } |
| |
| static void |
| sfw_deactivate_session(void) |
| __must_hold(&sfw_data.fw_lock) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| int nactive = 0; |
| sfw_batch_t *tsb; |
| sfw_test_case_t *tsc; |
| |
| if (sn == NULL) return; |
| |
| LASSERT(!sn->sn_timer_active); |
| |
| sfw_data.fw_session = NULL; |
| atomic_inc(&sfw_data.fw_nzombies); |
| list_add(&sn->sn_list, &sfw_data.fw_zombie_sessions); |
| |
| spin_unlock(&sfw_data.fw_lock); |
| |
| list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) { |
| srpc_abort_service(tsc->tsc_srv_service); |
| } |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| list_for_each_entry(tsb, &sn->sn_batches, bat_list) { |
| if (sfw_batch_active(tsb)) { |
| nactive++; |
| sfw_stop_batch(tsb, 1); |
| } |
| } |
| |
| if (nactive != 0) |
| return; /* wait for active batches to stop */ |
| |
| list_del_init(&sn->sn_list); |
| spin_unlock(&sfw_data.fw_lock); |
| |
| sfw_destroy_session(sn); |
| |
| spin_lock(&sfw_data.fw_lock); |
| } |
| |
| |
| static void |
| sfw_session_expired(void *data) |
| { |
| sfw_session_t *sn = data; |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| LASSERT(sn->sn_timer_active); |
| LASSERT(sn == sfw_data.fw_session); |
| |
| CWARN("Session expired! sid: %s-%llu, name: %s\n", |
| libcfs_nid2str(sn->sn_id.ses_nid), |
| sn->sn_id.ses_stamp, &sn->sn_name[0]); |
| |
| sn->sn_timer_active = 0; |
| sfw_deactivate_session(); |
| |
| spin_unlock(&sfw_data.fw_lock); |
| } |
| |
| static inline void |
| sfw_init_session(sfw_session_t *sn, lst_sid_t sid, |
| unsigned features, const char *name) |
| { |
| stt_timer_t *timer = &sn->sn_timer; |
| |
| memset(sn, 0, sizeof(sfw_session_t)); |
| INIT_LIST_HEAD(&sn->sn_list); |
| INIT_LIST_HEAD(&sn->sn_batches); |
| atomic_set(&sn->sn_refcount, 1); /* +1 for caller */ |
| atomic_set(&sn->sn_brw_errors, 0); |
| atomic_set(&sn->sn_ping_errors, 0); |
| strlcpy(&sn->sn_name[0], name, sizeof(sn->sn_name)); |
| |
| sn->sn_timer_active = 0; |
| sn->sn_id = sid; |
| sn->sn_features = features; |
| sn->sn_timeout = session_timeout; |
| sn->sn_started = cfs_time_current(); |
| |
| timer->stt_data = sn; |
| timer->stt_func = sfw_session_expired; |
| INIT_LIST_HEAD(&timer->stt_list); |
| } |
| |
| /* completion handler for incoming framework RPCs */ |
| static void |
| sfw_server_rpc_done(struct srpc_server_rpc *rpc) |
| { |
| struct srpc_service *sv = rpc->srpc_scd->scd_svc; |
| int status = rpc->srpc_status; |
| |
| CDEBUG(D_NET, |
| "Incoming framework RPC done: service %s, peer %s, status %s:%d\n", |
| sv->sv_name, libcfs_id2str(rpc->srpc_peer), |
| swi_state2str(rpc->srpc_wi.swi_state), |
| status); |
| |
| if (rpc->srpc_bulk != NULL) |
| sfw_free_pages(rpc); |
| return; |
| } |
| |
| static void |
| sfw_client_rpc_fini(srpc_client_rpc_t *rpc) |
| { |
| LASSERT(rpc->crpc_bulk.bk_niov == 0); |
| LASSERT(list_empty(&rpc->crpc_list)); |
| LASSERT(atomic_read(&rpc->crpc_refcount) == 0); |
| |
| CDEBUG(D_NET, |
| "Outgoing framework RPC done: service %d, peer %s, status %s:%d:%d\n", |
| rpc->crpc_service, libcfs_id2str(rpc->crpc_dest), |
| swi_state2str(rpc->crpc_wi.swi_state), |
| rpc->crpc_aborted, rpc->crpc_status); |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| /* my callers must finish all RPCs before shutting me down */ |
| LASSERT(!sfw_data.fw_shuttingdown); |
| list_add(&rpc->crpc_list, &sfw_data.fw_zombie_rpcs); |
| |
| spin_unlock(&sfw_data.fw_lock); |
| } |
| |
| static sfw_batch_t * |
| sfw_find_batch(lst_bid_t bid) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| sfw_batch_t *bat; |
| |
| LASSERT(sn != NULL); |
| |
| list_for_each_entry(bat, &sn->sn_batches, bat_list) { |
| if (bat->bat_id.bat_id == bid.bat_id) |
| return bat; |
| } |
| |
| return NULL; |
| } |
| |
| static sfw_batch_t * |
| sfw_bid2batch(lst_bid_t bid) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| sfw_batch_t *bat; |
| |
| LASSERT(sn != NULL); |
| |
| bat = sfw_find_batch(bid); |
| if (bat != NULL) |
| return bat; |
| |
| LIBCFS_ALLOC(bat, sizeof(sfw_batch_t)); |
| if (bat == NULL) |
| return NULL; |
| |
| bat->bat_error = 0; |
| bat->bat_session = sn; |
| bat->bat_id = bid; |
| atomic_set(&bat->bat_nactive, 0); |
| INIT_LIST_HEAD(&bat->bat_tests); |
| |
| list_add_tail(&bat->bat_list, &sn->sn_batches); |
| return bat; |
| } |
| |
| static int |
| sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| sfw_counters_t *cnt = &reply->str_fw; |
| sfw_batch_t *bat; |
| struct timeval tv; |
| |
| reply->str_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id; |
| |
| if (request->str_sid.ses_nid == LNET_NID_ANY) { |
| reply->str_status = EINVAL; |
| return 0; |
| } |
| |
| if (sn == NULL || !sfw_sid_equal(request->str_sid, sn->sn_id)) { |
| reply->str_status = ESRCH; |
| return 0; |
| } |
| |
| lnet_counters_get(&reply->str_lnet); |
| srpc_get_counters(&reply->str_rpc); |
| |
| /* send over the msecs since the session was started |
| - with 32 bits to send, this is ~49 days */ |
| cfs_duration_usec(cfs_time_sub(cfs_time_current(), |
| sn->sn_started), &tv); |
| |
| cnt->running_ms = (__u32)(tv.tv_sec * 1000 + tv.tv_usec / 1000); |
| cnt->brw_errors = atomic_read(&sn->sn_brw_errors); |
| cnt->ping_errors = atomic_read(&sn->sn_ping_errors); |
| cnt->zombie_sessions = atomic_read(&sfw_data.fw_nzombies); |
| |
| cnt->active_batches = 0; |
| list_for_each_entry(bat, &sn->sn_batches, bat_list) { |
| if (atomic_read(&bat->bat_nactive) > 0) |
| cnt->active_batches++; |
| } |
| |
| reply->str_status = 0; |
| return 0; |
| } |
| |
| int |
| sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| srpc_msg_t *msg = container_of(request, srpc_msg_t, |
| msg_body.mksn_reqst); |
| int cplen = 0; |
| |
| if (request->mksn_sid.ses_nid == LNET_NID_ANY) { |
| reply->mksn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id; |
| reply->mksn_status = EINVAL; |
| return 0; |
| } |
| |
| if (sn != NULL) { |
| reply->mksn_status = 0; |
| reply->mksn_sid = sn->sn_id; |
| reply->mksn_timeout = sn->sn_timeout; |
| |
| if (sfw_sid_equal(request->mksn_sid, sn->sn_id)) { |
| atomic_inc(&sn->sn_refcount); |
| return 0; |
| } |
| |
| if (!request->mksn_force) { |
| reply->mksn_status = EBUSY; |
| cplen = strlcpy(&reply->mksn_name[0], &sn->sn_name[0], |
| sizeof(reply->mksn_name)); |
| if (cplen >= sizeof(reply->mksn_name)) |
| return -E2BIG; |
| return 0; |
| } |
| } |
| |
| /* reject the request if it requires unknown features |
| * NB: old version will always accept all features because it's not |
| * aware of srpc_msg_t::msg_ses_feats, it's a defect but it's also |
| * harmless because it will return zero feature to console, and it's |
| * console's responsibility to make sure all nodes in a session have |
| * same feature mask. */ |
| if ((msg->msg_ses_feats & ~LST_FEATS_MASK) != 0) { |
| reply->mksn_status = EPROTO; |
| return 0; |
| } |
| |
| /* brand new or create by force */ |
| LIBCFS_ALLOC(sn, sizeof(sfw_session_t)); |
| if (sn == NULL) { |
| CERROR("Dropping RPC (mksn) under memory pressure.\n"); |
| return -ENOMEM; |
| } |
| |
| sfw_init_session(sn, request->mksn_sid, |
| msg->msg_ses_feats, &request->mksn_name[0]); |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| sfw_deactivate_session(); |
| LASSERT(sfw_data.fw_session == NULL); |
| sfw_data.fw_session = sn; |
| |
| spin_unlock(&sfw_data.fw_lock); |
| |
| reply->mksn_status = 0; |
| reply->mksn_sid = sn->sn_id; |
| reply->mksn_timeout = sn->sn_timeout; |
| return 0; |
| } |
| |
| static int |
| sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| |
| reply->rmsn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id; |
| |
| if (request->rmsn_sid.ses_nid == LNET_NID_ANY) { |
| reply->rmsn_status = EINVAL; |
| return 0; |
| } |
| |
| if (sn == NULL || !sfw_sid_equal(request->rmsn_sid, sn->sn_id)) { |
| reply->rmsn_status = (sn == NULL) ? ESRCH : EBUSY; |
| return 0; |
| } |
| |
| if (!atomic_dec_and_test(&sn->sn_refcount)) { |
| reply->rmsn_status = 0; |
| return 0; |
| } |
| |
| spin_lock(&sfw_data.fw_lock); |
| sfw_deactivate_session(); |
| spin_unlock(&sfw_data.fw_lock); |
| |
| reply->rmsn_status = 0; |
| reply->rmsn_sid = LST_INVALID_SID; |
| LASSERT(sfw_data.fw_session == NULL); |
| return 0; |
| } |
| |
| static int |
| sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| |
| if (sn == NULL) { |
| reply->dbg_status = ESRCH; |
| reply->dbg_sid = LST_INVALID_SID; |
| return 0; |
| } |
| |
| reply->dbg_status = 0; |
| reply->dbg_sid = sn->sn_id; |
| reply->dbg_timeout = sn->sn_timeout; |
| if (strlcpy(reply->dbg_name, &sn->sn_name[0], sizeof(reply->dbg_name)) |
| >= sizeof(reply->dbg_name)) |
| return -E2BIG; |
| |
| return 0; |
| } |
| |
| static void |
| sfw_test_rpc_fini(srpc_client_rpc_t *rpc) |
| { |
| sfw_test_unit_t *tsu = rpc->crpc_priv; |
| sfw_test_instance_t *tsi = tsu->tsu_instance; |
| |
| /* Called with hold of tsi->tsi_lock */ |
| LASSERT(list_empty(&rpc->crpc_list)); |
| list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs); |
| } |
| |
| static inline int |
| sfw_test_buffers(sfw_test_instance_t *tsi) |
| { |
| struct sfw_test_case *tsc = sfw_find_test_case(tsi->tsi_service); |
| struct srpc_service *svc = tsc->tsc_srv_service; |
| int nbuf; |
| |
| nbuf = min(svc->sv_wi_total, tsi->tsi_loop) / svc->sv_ncpts; |
| return max(SFW_TEST_WI_MIN, nbuf + SFW_TEST_WI_EXTRA); |
| } |
| |
| static int |
| sfw_load_test(struct sfw_test_instance *tsi) |
| { |
| struct sfw_test_case *tsc; |
| struct srpc_service *svc; |
| int nbuf; |
| int rc; |
| |
| LASSERT(tsi != NULL); |
| tsc = sfw_find_test_case(tsi->tsi_service); |
| nbuf = sfw_test_buffers(tsi); |
| LASSERT(tsc != NULL); |
| svc = tsc->tsc_srv_service; |
| |
| if (tsi->tsi_is_client) { |
| tsi->tsi_ops = tsc->tsc_cli_ops; |
| return 0; |
| } |
| |
| rc = srpc_service_add_buffers(svc, nbuf); |
| if (rc != 0) { |
| CWARN("Failed to reserve enough buffers: service %s, %d needed: %d\n", |
| svc->sv_name, nbuf, rc); |
| /* NB: this error handler is not strictly correct, because |
| * it may release more buffers than already allocated, |
| * but it doesn't matter because request portal should |
| * be lazy portal and will grow buffers if necessary. */ |
| srpc_service_remove_buffers(svc, nbuf); |
| return -ENOMEM; |
| } |
| |
| CDEBUG(D_NET, "Reserved %d buffers for test %s\n", |
| nbuf * (srpc_serv_is_framework(svc) ? |
| 1 : cfs_cpt_number(cfs_cpt_table)), svc->sv_name); |
| return 0; |
| } |
| |
| static void |
| sfw_unload_test(struct sfw_test_instance *tsi) |
| { |
| struct sfw_test_case *tsc = sfw_find_test_case(tsi->tsi_service); |
| |
| LASSERT(tsc != NULL); |
| |
| if (tsi->tsi_is_client) |
| return; |
| |
| /* shrink buffers, because request portal is lazy portal |
| * which can grow buffers at runtime so we may leave |
| * some buffers behind, but never mind... */ |
| srpc_service_remove_buffers(tsc->tsc_srv_service, |
| sfw_test_buffers(tsi)); |
| return; |
| } |
| |
| static void |
| sfw_destroy_test_instance(sfw_test_instance_t *tsi) |
| { |
| srpc_client_rpc_t *rpc; |
| sfw_test_unit_t *tsu; |
| |
| if (!tsi->tsi_is_client) goto clean; |
| |
| tsi->tsi_ops->tso_fini(tsi); |
| |
| LASSERT(!tsi->tsi_stopping); |
| LASSERT(list_empty(&tsi->tsi_active_rpcs)); |
| LASSERT(!sfw_test_active(tsi)); |
| |
| while (!list_empty(&tsi->tsi_units)) { |
| tsu = list_entry(tsi->tsi_units.next, |
| sfw_test_unit_t, tsu_list); |
| list_del(&tsu->tsu_list); |
| LIBCFS_FREE(tsu, sizeof(*tsu)); |
| } |
| |
| while (!list_empty(&tsi->tsi_free_rpcs)) { |
| rpc = list_entry(tsi->tsi_free_rpcs.next, |
| srpc_client_rpc_t, crpc_list); |
| list_del(&rpc->crpc_list); |
| LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); |
| } |
| |
| clean: |
| sfw_unload_test(tsi); |
| LIBCFS_FREE(tsi, sizeof(*tsi)); |
| return; |
| } |
| |
| static void |
| sfw_destroy_batch(sfw_batch_t *tsb) |
| { |
| sfw_test_instance_t *tsi; |
| |
| LASSERT(!sfw_batch_active(tsb)); |
| LASSERT(list_empty(&tsb->bat_list)); |
| |
| while (!list_empty(&tsb->bat_tests)) { |
| tsi = list_entry(tsb->bat_tests.next, |
| sfw_test_instance_t, tsi_list); |
| list_del_init(&tsi->tsi_list); |
| sfw_destroy_test_instance(tsi); |
| } |
| |
| LIBCFS_FREE(tsb, sizeof(sfw_batch_t)); |
| return; |
| } |
| |
| void |
| sfw_destroy_session(sfw_session_t *sn) |
| { |
| sfw_batch_t *batch; |
| |
| LASSERT(list_empty(&sn->sn_list)); |
| LASSERT(sn != sfw_data.fw_session); |
| |
| while (!list_empty(&sn->sn_batches)) { |
| batch = list_entry(sn->sn_batches.next, |
| sfw_batch_t, bat_list); |
| list_del_init(&batch->bat_list); |
| sfw_destroy_batch(batch); |
| } |
| |
| LIBCFS_FREE(sn, sizeof(*sn)); |
| atomic_dec(&sfw_data.fw_nzombies); |
| return; |
| } |
| |
| static void |
| sfw_unpack_addtest_req(srpc_msg_t *msg) |
| { |
| srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; |
| |
| LASSERT(msg->msg_type == SRPC_MSG_TEST_REQST); |
| LASSERT(req->tsr_is_client); |
| |
| if (msg->msg_magic == SRPC_MSG_MAGIC) |
| return; /* no flipping needed */ |
| |
| LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC)); |
| |
| if (req->tsr_service == SRPC_SERVICE_BRW) { |
| if ((msg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) { |
| test_bulk_req_t *bulk = &req->tsr_u.bulk_v0; |
| |
| __swab32s(&bulk->blk_opc); |
| __swab32s(&bulk->blk_npg); |
| __swab32s(&bulk->blk_flags); |
| |
| } else { |
| test_bulk_req_v1_t *bulk = &req->tsr_u.bulk_v1; |
| |
| __swab16s(&bulk->blk_opc); |
| __swab16s(&bulk->blk_flags); |
| __swab32s(&bulk->blk_offset); |
| __swab32s(&bulk->blk_len); |
| } |
| |
| return; |
| } |
| |
| if (req->tsr_service == SRPC_SERVICE_PING) { |
| test_ping_req_t *ping = &req->tsr_u.ping; |
| |
| __swab32s(&ping->png_size); |
| __swab32s(&ping->png_flags); |
| return; |
| } |
| |
| LBUG(); |
| return; |
| } |
| |
| static int |
| sfw_add_test_instance(sfw_batch_t *tsb, srpc_server_rpc_t *rpc) |
| { |
| srpc_msg_t *msg = &rpc->srpc_reqstbuf->buf_msg; |
| srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; |
| srpc_bulk_t *bk = rpc->srpc_bulk; |
| int ndest = req->tsr_ndest; |
| sfw_test_unit_t *tsu; |
| sfw_test_instance_t *tsi; |
| int i; |
| int rc; |
| |
| LIBCFS_ALLOC(tsi, sizeof(*tsi)); |
| if (tsi == NULL) { |
| CERROR("Can't allocate test instance for batch: %llu\n", |
| tsb->bat_id.bat_id); |
| return -ENOMEM; |
| } |
| |
| spin_lock_init(&tsi->tsi_lock); |
| atomic_set(&tsi->tsi_nactive, 0); |
| INIT_LIST_HEAD(&tsi->tsi_units); |
| INIT_LIST_HEAD(&tsi->tsi_free_rpcs); |
| INIT_LIST_HEAD(&tsi->tsi_active_rpcs); |
| |
| tsi->tsi_stopping = 0; |
| tsi->tsi_batch = tsb; |
| tsi->tsi_loop = req->tsr_loop; |
| tsi->tsi_concur = req->tsr_concur; |
| tsi->tsi_service = req->tsr_service; |
| tsi->tsi_is_client = !!(req->tsr_is_client); |
| tsi->tsi_stoptsu_onerr = !!(req->tsr_stop_onerr); |
| |
| rc = sfw_load_test(tsi); |
| if (rc != 0) { |
| LIBCFS_FREE(tsi, sizeof(*tsi)); |
| return rc; |
| } |
| |
| LASSERT(!sfw_batch_active(tsb)); |
| |
| if (!tsi->tsi_is_client) { |
| /* it's test server, just add it to tsb */ |
| list_add_tail(&tsi->tsi_list, &tsb->bat_tests); |
| return 0; |
| } |
| |
| LASSERT(bk != NULL); |
| LASSERT(bk->bk_niov * SFW_ID_PER_PAGE >= (unsigned int)ndest); |
| LASSERT((unsigned int)bk->bk_len >= |
| sizeof(lnet_process_id_packed_t) * ndest); |
| |
| sfw_unpack_addtest_req(msg); |
| memcpy(&tsi->tsi_u, &req->tsr_u, sizeof(tsi->tsi_u)); |
| |
| for (i = 0; i < ndest; i++) { |
| lnet_process_id_packed_t *dests; |
| lnet_process_id_packed_t id; |
| int j; |
| |
| dests = page_address(bk->bk_iovs[i / SFW_ID_PER_PAGE].kiov_page); |
| LASSERT(dests != NULL); /* my pages are within KVM always */ |
| id = dests[i % SFW_ID_PER_PAGE]; |
| if (msg->msg_magic != SRPC_MSG_MAGIC) |
| sfw_unpack_id(id); |
| |
| for (j = 0; j < tsi->tsi_concur; j++) { |
| LIBCFS_ALLOC(tsu, sizeof(sfw_test_unit_t)); |
| if (tsu == NULL) { |
| rc = -ENOMEM; |
| CERROR("Can't allocate tsu for %d\n", |
| tsi->tsi_service); |
| goto error; |
| } |
| |
| tsu->tsu_dest.nid = id.nid; |
| tsu->tsu_dest.pid = id.pid; |
| tsu->tsu_instance = tsi; |
| tsu->tsu_private = NULL; |
| list_add_tail(&tsu->tsu_list, &tsi->tsi_units); |
| } |
| } |
| |
| rc = tsi->tsi_ops->tso_init(tsi); |
| if (rc == 0) { |
| list_add_tail(&tsi->tsi_list, &tsb->bat_tests); |
| return 0; |
| } |
| |
| error: |
| LASSERT(rc != 0); |
| sfw_destroy_test_instance(tsi); |
| return rc; |
| } |
| |
| static void |
| sfw_test_unit_done(sfw_test_unit_t *tsu) |
| { |
| sfw_test_instance_t *tsi = tsu->tsu_instance; |
| sfw_batch_t *tsb = tsi->tsi_batch; |
| sfw_session_t *sn = tsb->bat_session; |
| |
| LASSERT(sfw_test_active(tsi)); |
| |
| if (!atomic_dec_and_test(&tsi->tsi_nactive)) |
| return; |
| |
| /* the test instance is done */ |
| spin_lock(&tsi->tsi_lock); |
| |
| tsi->tsi_stopping = 0; |
| |
| spin_unlock(&tsi->tsi_lock); |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| if (!atomic_dec_and_test(&tsb->bat_nactive) ||/* tsb still active */ |
| sn == sfw_data.fw_session) { /* sn also active */ |
| spin_unlock(&sfw_data.fw_lock); |
| return; |
| } |
| |
| LASSERT(!list_empty(&sn->sn_list)); /* I'm a zombie! */ |
| |
| list_for_each_entry(tsb, &sn->sn_batches, bat_list) { |
| if (sfw_batch_active(tsb)) { |
| spin_unlock(&sfw_data.fw_lock); |
| return; |
| } |
| } |
| |
| list_del_init(&sn->sn_list); |
| spin_unlock(&sfw_data.fw_lock); |
| |
| sfw_destroy_session(sn); |
| return; |
| } |
| |
| static void |
| sfw_test_rpc_done(srpc_client_rpc_t *rpc) |
| { |
| sfw_test_unit_t *tsu = rpc->crpc_priv; |
| sfw_test_instance_t *tsi = tsu->tsu_instance; |
| int done = 0; |
| |
| tsi->tsi_ops->tso_done_rpc(tsu, rpc); |
| |
| spin_lock(&tsi->tsi_lock); |
| |
| LASSERT(sfw_test_active(tsi)); |
| LASSERT(!list_empty(&rpc->crpc_list)); |
| |
| list_del_init(&rpc->crpc_list); |
| |
| /* batch is stopping or loop is done or get error */ |
| if (tsi->tsi_stopping || |
| tsu->tsu_loop == 0 || |
| (rpc->crpc_status != 0 && tsi->tsi_stoptsu_onerr)) |
| done = 1; |
| |
| /* dec ref for poster */ |
| srpc_client_rpc_decref(rpc); |
| |
| spin_unlock(&tsi->tsi_lock); |
| |
| if (!done) { |
| swi_schedule_workitem(&tsu->tsu_worker); |
| return; |
| } |
| |
| sfw_test_unit_done(tsu); |
| return; |
| } |
| |
| int |
| sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, |
| unsigned features, int nblk, int blklen, |
| srpc_client_rpc_t **rpcpp) |
| { |
| srpc_client_rpc_t *rpc = NULL; |
| sfw_test_instance_t *tsi = tsu->tsu_instance; |
| |
| spin_lock(&tsi->tsi_lock); |
| |
| LASSERT(sfw_test_active(tsi)); |
| |
| if (!list_empty(&tsi->tsi_free_rpcs)) { |
| /* pick request from buffer */ |
| rpc = list_entry(tsi->tsi_free_rpcs.next, |
| srpc_client_rpc_t, crpc_list); |
| LASSERT(nblk == rpc->crpc_bulk.bk_niov); |
| list_del_init(&rpc->crpc_list); |
| } |
| |
| spin_unlock(&tsi->tsi_lock); |
| |
| if (rpc == NULL) { |
| rpc = srpc_create_client_rpc(peer, tsi->tsi_service, nblk, |
| blklen, sfw_test_rpc_done, |
| sfw_test_rpc_fini, tsu); |
| } else { |
| srpc_init_client_rpc(rpc, peer, tsi->tsi_service, nblk, |
| blklen, sfw_test_rpc_done, |
| sfw_test_rpc_fini, tsu); |
| } |
| |
| if (rpc == NULL) { |
| CERROR("Can't create rpc for test %d\n", tsi->tsi_service); |
| return -ENOMEM; |
| } |
| |
| rpc->crpc_reqstmsg.msg_ses_feats = features; |
| *rpcpp = rpc; |
| |
| return 0; |
| } |
| |
| static int |
| sfw_run_test(swi_workitem_t *wi) |
| { |
| sfw_test_unit_t *tsu = wi->swi_workitem.wi_data; |
| sfw_test_instance_t *tsi = tsu->tsu_instance; |
| srpc_client_rpc_t *rpc = NULL; |
| |
| LASSERT(wi == &tsu->tsu_worker); |
| |
| if (tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc) != 0) { |
| LASSERT(rpc == NULL); |
| goto test_done; |
| } |
| |
| LASSERT(rpc != NULL); |
| |
| spin_lock(&tsi->tsi_lock); |
| |
| if (tsi->tsi_stopping) { |
| list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs); |
| spin_unlock(&tsi->tsi_lock); |
| goto test_done; |
| } |
| |
| if (tsu->tsu_loop > 0) |
| tsu->tsu_loop--; |
| |
| list_add_tail(&rpc->crpc_list, &tsi->tsi_active_rpcs); |
| spin_unlock(&tsi->tsi_lock); |
| |
| rpc->crpc_timeout = rpc_timeout; |
| |
| spin_lock(&rpc->crpc_lock); |
| srpc_post_rpc(rpc); |
| spin_unlock(&rpc->crpc_lock); |
| return 0; |
| |
| test_done: |
| /* |
| * No one can schedule me now since: |
| * - previous RPC, if any, has done and |
| * - no new RPC is initiated. |
| * - my batch is still active; no one can run it again now. |
| * Cancel pending schedules and prevent future schedule attempts: |
| */ |
| swi_exit_workitem(wi); |
| sfw_test_unit_done(tsu); |
| return 1; |
| } |
| |
| static int |
| sfw_run_batch(sfw_batch_t *tsb) |
| { |
| swi_workitem_t *wi; |
| sfw_test_unit_t *tsu; |
| sfw_test_instance_t *tsi; |
| |
| if (sfw_batch_active(tsb)) { |
| CDEBUG(D_NET, "Batch already active: %llu (%d)\n", |
| tsb->bat_id.bat_id, atomic_read(&tsb->bat_nactive)); |
| return 0; |
| } |
| |
| list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) { |
| if (!tsi->tsi_is_client) /* skip server instances */ |
| continue; |
| |
| LASSERT(!tsi->tsi_stopping); |
| LASSERT(!sfw_test_active(tsi)); |
| |
| atomic_inc(&tsb->bat_nactive); |
| |
| list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) { |
| atomic_inc(&tsi->tsi_nactive); |
| tsu->tsu_loop = tsi->tsi_loop; |
| wi = &tsu->tsu_worker; |
| swi_init_workitem(wi, tsu, sfw_run_test, |
| lst_sched_test[\ |
| lnet_cpt_of_nid(tsu->tsu_dest.nid)]); |
| swi_schedule_workitem(wi); |
| } |
| } |
| |
| return 0; |
| } |
| |
| int |
| sfw_stop_batch(sfw_batch_t *tsb, int force) |
| { |
| sfw_test_instance_t *tsi; |
| srpc_client_rpc_t *rpc; |
| |
| if (!sfw_batch_active(tsb)) { |
| CDEBUG(D_NET, "Batch %llu inactive\n", tsb->bat_id.bat_id); |
| return 0; |
| } |
| |
| list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) { |
| spin_lock(&tsi->tsi_lock); |
| |
| if (!tsi->tsi_is_client || |
| !sfw_test_active(tsi) || tsi->tsi_stopping) { |
| spin_unlock(&tsi->tsi_lock); |
| continue; |
| } |
| |
| tsi->tsi_stopping = 1; |
| |
| if (!force) { |
| spin_unlock(&tsi->tsi_lock); |
| continue; |
| } |
| |
| /* abort launched rpcs in the test */ |
| list_for_each_entry(rpc, &tsi->tsi_active_rpcs, crpc_list) { |
| spin_lock(&rpc->crpc_lock); |
| |
| srpc_abort_rpc(rpc, -EINTR); |
| |
| spin_unlock(&rpc->crpc_lock); |
| } |
| |
| spin_unlock(&tsi->tsi_lock); |
| } |
| |
| return 0; |
| } |
| |
| static int |
| sfw_query_batch(sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply) |
| { |
| sfw_test_instance_t *tsi; |
| |
| if (testidx < 0) |
| return -EINVAL; |
| |
| if (testidx == 0) { |
| reply->bar_active = atomic_read(&tsb->bat_nactive); |
| return 0; |
| } |
| |
| list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) { |
| if (testidx-- > 1) |
| continue; |
| |
| reply->bar_active = atomic_read(&tsi->tsi_nactive); |
| return 0; |
| } |
| |
| return -ENOENT; |
| } |
| |
| void |
| sfw_free_pages(srpc_server_rpc_t *rpc) |
| { |
| srpc_free_bulk(rpc->srpc_bulk); |
| rpc->srpc_bulk = NULL; |
| } |
| |
| int |
| sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len, |
| int sink) |
| { |
| LASSERT(rpc->srpc_bulk == NULL); |
| LASSERT(npages > 0 && npages <= LNET_MAX_IOV); |
| |
| rpc->srpc_bulk = srpc_alloc_bulk(cpt, npages, len, sink); |
| if (rpc->srpc_bulk == NULL) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| static int |
| sfw_add_test(srpc_server_rpc_t *rpc) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply; |
| srpc_test_reqst_t *request; |
| int rc; |
| sfw_batch_t *bat; |
| |
| request = &rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst; |
| reply->tsr_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id; |
| |
| if (request->tsr_loop == 0 || |
| request->tsr_concur == 0 || |
| request->tsr_sid.ses_nid == LNET_NID_ANY || |
| request->tsr_ndest > SFW_MAX_NDESTS || |
| (request->tsr_is_client && request->tsr_ndest == 0) || |
| request->tsr_concur > SFW_MAX_CONCUR || |
| request->tsr_service > SRPC_SERVICE_MAX_ID || |
| request->tsr_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID) { |
| reply->tsr_status = EINVAL; |
| return 0; |
| } |
| |
| if (sn == NULL || !sfw_sid_equal(request->tsr_sid, sn->sn_id) || |
| sfw_find_test_case(request->tsr_service) == NULL) { |
| reply->tsr_status = ENOENT; |
| return 0; |
| } |
| |
| bat = sfw_bid2batch(request->tsr_bid); |
| if (bat == NULL) { |
| CERROR("Dropping RPC (%s) from %s under memory pressure.\n", |
| rpc->srpc_scd->scd_svc->sv_name, |
| libcfs_id2str(rpc->srpc_peer)); |
| return -ENOMEM; |
| } |
| |
| if (sfw_batch_active(bat)) { |
| reply->tsr_status = EBUSY; |
| return 0; |
| } |
| |
| if (request->tsr_is_client && rpc->srpc_bulk == NULL) { |
| /* rpc will be resumed later in sfw_bulk_ready */ |
| int npg = sfw_id_pages(request->tsr_ndest); |
| int len; |
| |
| if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) { |
| len = npg * PAGE_CACHE_SIZE; |
| |
| } else { |
| len = sizeof(lnet_process_id_packed_t) * |
| request->tsr_ndest; |
| } |
| |
| return sfw_alloc_pages(rpc, CFS_CPT_ANY, npg, len, 1); |
| } |
| |
| rc = sfw_add_test_instance(bat, rpc); |
| CDEBUG(rc == 0 ? D_NET : D_WARNING, |
| "%s test: sv %d %s, loop %d, concur %d, ndest %d\n", |
| rc == 0 ? "Added" : "Failed to add", request->tsr_service, |
| request->tsr_is_client ? "client" : "server", |
| request->tsr_loop, request->tsr_concur, request->tsr_ndest); |
| |
| reply->tsr_status = (rc < 0) ? -rc : rc; |
| return 0; |
| } |
| |
| static int |
| sfw_control_batch(srpc_batch_reqst_t *request, srpc_batch_reply_t *reply) |
| { |
| sfw_session_t *sn = sfw_data.fw_session; |
| int rc = 0; |
| sfw_batch_t *bat; |
| |
| reply->bar_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id; |
| |
| if (sn == NULL || !sfw_sid_equal(request->bar_sid, sn->sn_id)) { |
| reply->bar_status = ESRCH; |
| return 0; |
| } |
| |
| bat = sfw_find_batch(request->bar_bid); |
| if (bat == NULL) { |
| reply->bar_status = ENOENT; |
| return 0; |
| } |
| |
| switch (request->bar_opc) { |
| case SRPC_BATCH_OPC_RUN: |
| rc = sfw_run_batch(bat); |
| break; |
| |
| case SRPC_BATCH_OPC_STOP: |
| rc = sfw_stop_batch(bat, request->bar_arg); |
| break; |
| |
| case SRPC_BATCH_OPC_QUERY: |
| rc = sfw_query_batch(bat, request->bar_testidx, reply); |
| break; |
| |
| default: |
| return -EINVAL; /* drop it */ |
| } |
| |
| reply->bar_status = (rc < 0) ? -rc : rc; |
| return 0; |
| } |
| |
| static int |
| sfw_handle_server_rpc(struct srpc_server_rpc *rpc) |
| { |
| struct srpc_service *sv = rpc->srpc_scd->scd_svc; |
| srpc_msg_t *reply = &rpc->srpc_replymsg; |
| srpc_msg_t *request = &rpc->srpc_reqstbuf->buf_msg; |
| unsigned features = LST_FEATS_MASK; |
| int rc = 0; |
| |
| LASSERT(sfw_data.fw_active_srpc == NULL); |
| LASSERT(sv->sv_id <= SRPC_FRAMEWORK_SERVICE_MAX_ID); |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| if (sfw_data.fw_shuttingdown) { |
| spin_unlock(&sfw_data.fw_lock); |
| return -ESHUTDOWN; |
| } |
| |
| /* Remove timer to avoid racing with it or expiring active session */ |
| if (sfw_del_session_timer() != 0) { |
| CERROR("Dropping RPC (%s) from %s: racing with expiry timer.", |
| sv->sv_name, libcfs_id2str(rpc->srpc_peer)); |
| spin_unlock(&sfw_data.fw_lock); |
| return -EAGAIN; |
| } |
| |
| sfw_data.fw_active_srpc = rpc; |
| spin_unlock(&sfw_data.fw_lock); |
| |
| sfw_unpack_message(request); |
| LASSERT(request->msg_type == srpc_service2request(sv->sv_id)); |
| |
| /* rpc module should have checked this */ |
| LASSERT(request->msg_version == SRPC_MSG_VERSION); |
| |
| if (sv->sv_id != SRPC_SERVICE_MAKE_SESSION && |
| sv->sv_id != SRPC_SERVICE_DEBUG) { |
| sfw_session_t *sn = sfw_data.fw_session; |
| |
| if (sn != NULL && |
| sn->sn_features != request->msg_ses_feats) { |
| CNETERR("Features of framework RPC don't match features of current session: %x/%x\n", |
| request->msg_ses_feats, sn->sn_features); |
| reply->msg_body.reply.status = EPROTO; |
| reply->msg_body.reply.sid = sn->sn_id; |
| goto out; |
| } |
| |
| } else if ((request->msg_ses_feats & ~LST_FEATS_MASK) != 0) { |
| /* NB: at this point, old version will ignore features and |
| * create new session anyway, so console should be able |
| * to handle this */ |
| reply->msg_body.reply.status = EPROTO; |
| goto out; |
| } |
| |
| switch (sv->sv_id) { |
| default: |
| LBUG(); |
| case SRPC_SERVICE_TEST: |
| rc = sfw_add_test(rpc); |
| break; |
| |
| case SRPC_SERVICE_BATCH: |
| rc = sfw_control_batch(&request->msg_body.bat_reqst, |
| &reply->msg_body.bat_reply); |
| break; |
| |
| case SRPC_SERVICE_QUERY_STAT: |
| rc = sfw_get_stats(&request->msg_body.stat_reqst, |
| &reply->msg_body.stat_reply); |
| break; |
| |
| case SRPC_SERVICE_DEBUG: |
| rc = sfw_debug_session(&request->msg_body.dbg_reqst, |
| &reply->msg_body.dbg_reply); |
| break; |
| |
| case SRPC_SERVICE_MAKE_SESSION: |
| rc = sfw_make_session(&request->msg_body.mksn_reqst, |
| &reply->msg_body.mksn_reply); |
| break; |
| |
| case SRPC_SERVICE_REMOVE_SESSION: |
| rc = sfw_remove_session(&request->msg_body.rmsn_reqst, |
| &reply->msg_body.rmsn_reply); |
| break; |
| } |
| |
| if (sfw_data.fw_session != NULL) |
| features = sfw_data.fw_session->sn_features; |
| out: |
| reply->msg_ses_feats = features; |
| rpc->srpc_done = sfw_server_rpc_done; |
| spin_lock(&sfw_data.fw_lock); |
| |
| if (!sfw_data.fw_shuttingdown) |
| sfw_add_session_timer(); |
| |
| sfw_data.fw_active_srpc = NULL; |
| spin_unlock(&sfw_data.fw_lock); |
| return rc; |
| } |
| |
| static int |
| sfw_bulk_ready(struct srpc_server_rpc *rpc, int status) |
| { |
| struct srpc_service *sv = rpc->srpc_scd->scd_svc; |
| int rc; |
| |
| LASSERT(rpc->srpc_bulk != NULL); |
| LASSERT(sv->sv_id == SRPC_SERVICE_TEST); |
| LASSERT(sfw_data.fw_active_srpc == NULL); |
| LASSERT(rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst.tsr_is_client); |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| if (status != 0) { |
| CERROR("Bulk transfer failed for RPC: service %s, peer %s, status %d\n", |
| sv->sv_name, libcfs_id2str(rpc->srpc_peer), status); |
| spin_unlock(&sfw_data.fw_lock); |
| return -EIO; |
| } |
| |
| if (sfw_data.fw_shuttingdown) { |
| spin_unlock(&sfw_data.fw_lock); |
| return -ESHUTDOWN; |
| } |
| |
| if (sfw_del_session_timer() != 0) { |
| CERROR("Dropping RPC (%s) from %s: racing with expiry timer", |
| sv->sv_name, libcfs_id2str(rpc->srpc_peer)); |
| spin_unlock(&sfw_data.fw_lock); |
| return -EAGAIN; |
| } |
| |
| sfw_data.fw_active_srpc = rpc; |
| spin_unlock(&sfw_data.fw_lock); |
| |
| rc = sfw_add_test(rpc); |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| if (!sfw_data.fw_shuttingdown) |
| sfw_add_session_timer(); |
| |
| sfw_data.fw_active_srpc = NULL; |
| spin_unlock(&sfw_data.fw_lock); |
| return rc; |
| } |
| |
| srpc_client_rpc_t * |
| sfw_create_rpc(lnet_process_id_t peer, int service, |
| unsigned features, int nbulkiov, int bulklen, |
| void (*done)(srpc_client_rpc_t *), void *priv) |
| { |
| srpc_client_rpc_t *rpc = NULL; |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| LASSERT(!sfw_data.fw_shuttingdown); |
| LASSERT(service <= SRPC_FRAMEWORK_SERVICE_MAX_ID); |
| |
| if (nbulkiov == 0 && !list_empty(&sfw_data.fw_zombie_rpcs)) { |
| rpc = list_entry(sfw_data.fw_zombie_rpcs.next, |
| srpc_client_rpc_t, crpc_list); |
| list_del(&rpc->crpc_list); |
| |
| srpc_init_client_rpc(rpc, peer, service, 0, 0, |
| done, sfw_client_rpc_fini, priv); |
| } |
| |
| spin_unlock(&sfw_data.fw_lock); |
| |
| if (rpc == NULL) { |
| rpc = srpc_create_client_rpc(peer, service, |
| nbulkiov, bulklen, done, |
| nbulkiov != 0 ? NULL : |
| sfw_client_rpc_fini, |
| priv); |
| } |
| |
| if (rpc != NULL) /* "session" is concept in framework */ |
| rpc->crpc_reqstmsg.msg_ses_feats = features; |
| |
| return rpc; |
| } |
| |
| void |
| sfw_unpack_message(srpc_msg_t *msg) |
| { |
| if (msg->msg_magic == SRPC_MSG_MAGIC) |
| return; /* no flipping needed */ |
| |
| /* srpc module should guarantee I wouldn't get crap */ |
| LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC)); |
| |
| if (msg->msg_type == SRPC_MSG_STAT_REQST) { |
| srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst; |
| |
| __swab32s(&req->str_type); |
| __swab64s(&req->str_rpyid); |
| sfw_unpack_sid(req->str_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_STAT_REPLY) { |
| srpc_stat_reply_t *rep = &msg->msg_body.stat_reply; |
| |
| __swab32s(&rep->str_status); |
| sfw_unpack_sid(rep->str_sid); |
| sfw_unpack_fw_counters(rep->str_fw); |
| sfw_unpack_rpc_counters(rep->str_rpc); |
| sfw_unpack_lnet_counters(rep->str_lnet); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_MKSN_REQST) { |
| srpc_mksn_reqst_t *req = &msg->msg_body.mksn_reqst; |
| |
| __swab64s(&req->mksn_rpyid); |
| __swab32s(&req->mksn_force); |
| sfw_unpack_sid(req->mksn_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_MKSN_REPLY) { |
| srpc_mksn_reply_t *rep = &msg->msg_body.mksn_reply; |
| |
| __swab32s(&rep->mksn_status); |
| __swab32s(&rep->mksn_timeout); |
| sfw_unpack_sid(rep->mksn_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_RMSN_REQST) { |
| srpc_rmsn_reqst_t *req = &msg->msg_body.rmsn_reqst; |
| |
| __swab64s(&req->rmsn_rpyid); |
| sfw_unpack_sid(req->rmsn_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_RMSN_REPLY) { |
| srpc_rmsn_reply_t *rep = &msg->msg_body.rmsn_reply; |
| |
| __swab32s(&rep->rmsn_status); |
| sfw_unpack_sid(rep->rmsn_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_DEBUG_REQST) { |
| srpc_debug_reqst_t *req = &msg->msg_body.dbg_reqst; |
| |
| __swab64s(&req->dbg_rpyid); |
| __swab32s(&req->dbg_flags); |
| sfw_unpack_sid(req->dbg_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_DEBUG_REPLY) { |
| srpc_debug_reply_t *rep = &msg->msg_body.dbg_reply; |
| |
| __swab32s(&rep->dbg_nbatch); |
| __swab32s(&rep->dbg_timeout); |
| sfw_unpack_sid(rep->dbg_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_BATCH_REQST) { |
| srpc_batch_reqst_t *req = &msg->msg_body.bat_reqst; |
| |
| __swab32s(&req->bar_opc); |
| __swab64s(&req->bar_rpyid); |
| __swab32s(&req->bar_testidx); |
| __swab32s(&req->bar_arg); |
| sfw_unpack_sid(req->bar_sid); |
| __swab64s(&req->bar_bid.bat_id); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_BATCH_REPLY) { |
| srpc_batch_reply_t *rep = &msg->msg_body.bat_reply; |
| |
| __swab32s(&rep->bar_status); |
| sfw_unpack_sid(rep->bar_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_TEST_REQST) { |
| srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; |
| |
| __swab64s(&req->tsr_rpyid); |
| __swab64s(&req->tsr_bulkid); |
| __swab32s(&req->tsr_loop); |
| __swab32s(&req->tsr_ndest); |
| __swab32s(&req->tsr_concur); |
| __swab32s(&req->tsr_service); |
| sfw_unpack_sid(req->tsr_sid); |
| __swab64s(&req->tsr_bid.bat_id); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_TEST_REPLY) { |
| srpc_test_reply_t *rep = &msg->msg_body.tes_reply; |
| |
| __swab32s(&rep->tsr_status); |
| sfw_unpack_sid(rep->tsr_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_JOIN_REQST) { |
| srpc_join_reqst_t *req = &msg->msg_body.join_reqst; |
| |
| __swab64s(&req->join_rpyid); |
| sfw_unpack_sid(req->join_sid); |
| return; |
| } |
| |
| if (msg->msg_type == SRPC_MSG_JOIN_REPLY) { |
| srpc_join_reply_t *rep = &msg->msg_body.join_reply; |
| |
| __swab32s(&rep->join_status); |
| __swab32s(&rep->join_timeout); |
| sfw_unpack_sid(rep->join_sid); |
| return; |
| } |
| |
| LBUG(); |
| return; |
| } |
| |
| void |
| sfw_abort_rpc(srpc_client_rpc_t *rpc) |
| { |
| LASSERT(atomic_read(&rpc->crpc_refcount) > 0); |
| LASSERT(rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID); |
| |
| spin_lock(&rpc->crpc_lock); |
| srpc_abort_rpc(rpc, -EINTR); |
| spin_unlock(&rpc->crpc_lock); |
| return; |
| } |
| |
| void |
| sfw_post_rpc(srpc_client_rpc_t *rpc) |
| { |
| spin_lock(&rpc->crpc_lock); |
| |
| LASSERT(!rpc->crpc_closed); |
| LASSERT(!rpc->crpc_aborted); |
| LASSERT(list_empty(&rpc->crpc_list)); |
| LASSERT(!sfw_data.fw_shuttingdown); |
| |
| rpc->crpc_timeout = rpc_timeout; |
| srpc_post_rpc(rpc); |
| |
| spin_unlock(&rpc->crpc_lock); |
| return; |
| } |
| |
| static srpc_service_t sfw_services[] = { |
| { |
| /* sv_id */ SRPC_SERVICE_DEBUG, |
| /* sv_name */ "debug", |
| 0 |
| }, |
| { |
| /* sv_id */ SRPC_SERVICE_QUERY_STAT, |
| /* sv_name */ "query stats", |
| 0 |
| }, |
| { |
| /* sv_id */ SRPC_SERVICE_MAKE_SESSION, |
| /* sv_name */ "make session", |
| 0 |
| }, |
| { |
| /* sv_id */ SRPC_SERVICE_REMOVE_SESSION, |
| /* sv_name */ "remove session", |
| 0 |
| }, |
| { |
| /* sv_id */ SRPC_SERVICE_BATCH, |
| /* sv_name */ "batch service", |
| 0 |
| }, |
| { |
| /* sv_id */ SRPC_SERVICE_TEST, |
| /* sv_name */ "test service", |
| 0 |
| }, |
| { |
| /* sv_id */ 0, |
| /* sv_name */ NULL, |
| 0 |
| } |
| }; |
| |
| extern sfw_test_client_ops_t ping_test_client; |
| extern srpc_service_t ping_test_service; |
| extern void ping_init_test_client(void); |
| extern void ping_init_test_service(void); |
| |
| extern sfw_test_client_ops_t brw_test_client; |
| extern srpc_service_t brw_test_service; |
| extern void brw_init_test_client(void); |
| extern void brw_init_test_service(void); |
| |
| |
| int |
| sfw_startup(void) |
| { |
| int i; |
| int rc; |
| int error; |
| srpc_service_t *sv; |
| sfw_test_case_t *tsc; |
| |
| |
| if (session_timeout < 0) { |
| CERROR("Session timeout must be non-negative: %d\n", |
| session_timeout); |
| return -EINVAL; |
| } |
| |
| if (rpc_timeout < 0) { |
| CERROR("RPC timeout must be non-negative: %d\n", |
| rpc_timeout); |
| return -EINVAL; |
| } |
| |
| if (session_timeout == 0) |
| CWARN("Zero session_timeout specified - test sessions never expire.\n"); |
| |
| if (rpc_timeout == 0) |
| CWARN("Zero rpc_timeout specified - test RPC never expire.\n"); |
| |
| memset(&sfw_data, 0, sizeof(struct smoketest_framework)); |
| |
| sfw_data.fw_session = NULL; |
| sfw_data.fw_active_srpc = NULL; |
| spin_lock_init(&sfw_data.fw_lock); |
| atomic_set(&sfw_data.fw_nzombies, 0); |
| INIT_LIST_HEAD(&sfw_data.fw_tests); |
| INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs); |
| INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions); |
| |
| brw_init_test_client(); |
| brw_init_test_service(); |
| rc = sfw_register_test(&brw_test_service, &brw_test_client); |
| LASSERT(rc == 0); |
| |
| ping_init_test_client(); |
| ping_init_test_service(); |
| rc = sfw_register_test(&ping_test_service, &ping_test_client); |
| LASSERT(rc == 0); |
| |
| error = 0; |
| list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) { |
| sv = tsc->tsc_srv_service; |
| |
| rc = srpc_add_service(sv); |
| LASSERT(rc != -EBUSY); |
| if (rc != 0) { |
| CWARN("Failed to add %s service: %d\n", |
| sv->sv_name, rc); |
| error = rc; |
| } |
| } |
| |
| for (i = 0; ; i++) { |
| sv = &sfw_services[i]; |
| if (sv->sv_name == NULL) break; |
| |
| sv->sv_bulk_ready = NULL; |
| sv->sv_handler = sfw_handle_server_rpc; |
| sv->sv_wi_total = SFW_FRWK_WI_MAX; |
| if (sv->sv_id == SRPC_SERVICE_TEST) |
| sv->sv_bulk_ready = sfw_bulk_ready; |
| |
| rc = srpc_add_service(sv); |
| LASSERT(rc != -EBUSY); |
| if (rc != 0) { |
| CWARN("Failed to add %s service: %d\n", |
| sv->sv_name, rc); |
| error = rc; |
| } |
| |
| /* about to sfw_shutdown, no need to add buffer */ |
| if (error) continue; |
| |
| rc = srpc_service_add_buffers(sv, sv->sv_wi_total); |
| if (rc != 0) { |
| CWARN("Failed to reserve enough buffers: service %s, %d needed: %d\n", |
| sv->sv_name, sv->sv_wi_total, rc); |
| error = -ENOMEM; |
| } |
| } |
| |
| if (error != 0) |
| sfw_shutdown(); |
| return error; |
| } |
| |
| void |
| sfw_shutdown(void) |
| { |
| srpc_service_t *sv; |
| sfw_test_case_t *tsc; |
| int i; |
| |
| spin_lock(&sfw_data.fw_lock); |
| |
| sfw_data.fw_shuttingdown = 1; |
| lst_wait_until(sfw_data.fw_active_srpc == NULL, sfw_data.fw_lock, |
| "waiting for active RPC to finish.\n"); |
| |
| if (sfw_del_session_timer() != 0) |
| lst_wait_until(sfw_data.fw_session == NULL, sfw_data.fw_lock, |
| "waiting for session timer to explode.\n"); |
| |
| sfw_deactivate_session(); |
| lst_wait_until(atomic_read(&sfw_data.fw_nzombies) == 0, |
| sfw_data.fw_lock, |
| "waiting for %d zombie sessions to die.\n", |
| atomic_read(&sfw_data.fw_nzombies)); |
| |
| spin_unlock(&sfw_data.fw_lock); |
| |
| for (i = 0; ; i++) { |
| sv = &sfw_services[i]; |
| if (sv->sv_name == NULL) |
| break; |
| |
| srpc_shutdown_service(sv); |
| srpc_remove_service(sv); |
| } |
| |
| list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) { |
| sv = tsc->tsc_srv_service; |
| srpc_shutdown_service(sv); |
| srpc_remove_service(sv); |
| } |
| |
| while (!list_empty(&sfw_data.fw_zombie_rpcs)) { |
| srpc_client_rpc_t *rpc; |
| |
| rpc = list_entry(sfw_data.fw_zombie_rpcs.next, |
| srpc_client_rpc_t, crpc_list); |
| list_del(&rpc->crpc_list); |
| |
| LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); |
| } |
| |
| for (i = 0; ; i++) { |
| sv = &sfw_services[i]; |
| if (sv->sv_name == NULL) |
| break; |
| |
| srpc_wait_service_shutdown(sv); |
| } |
| |
| while (!list_empty(&sfw_data.fw_tests)) { |
| tsc = list_entry(sfw_data.fw_tests.next, |
| sfw_test_case_t, tsc_list); |
| |
| srpc_wait_service_shutdown(tsc->tsc_srv_service); |
| |
| list_del(&tsc->tsc_list); |
| LIBCFS_FREE(tsc, sizeof(*tsc)); |
| } |
| |
| return; |
| } |