--- /dev/null
+/*
+ * 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;
+}
Code Review / kvmfornfv.git / blobdiff