4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lnet/selftest/brw_test.c
34 * Author: Isaac Huang <isaac@clusterfs.com>
39 static int brw_srv_workitems = SFW_TEST_WI_MAX;
40 module_param(brw_srv_workitems, int, 0644);
41 MODULE_PARM_DESC(brw_srv_workitems, "# BRW server workitems");
43 static int brw_inject_errors;
44 module_param(brw_inject_errors, int, 0644);
45 MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default");
47 #define BRW_POISON 0xbeefbeefbeefbeefULL
48 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
49 #define BRW_MSIZE sizeof(__u64)
52 brw_client_fini (sfw_test_instance_t *tsi)
57 LASSERT(tsi->tsi_is_client);
59 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
60 bulk = tsu->tsu_private;
65 tsu->tsu_private = NULL;
70 brw_client_init (sfw_test_instance_t *tsi)
72 sfw_session_t *sn = tsi->tsi_batch->bat_session;
82 LASSERT(tsi->tsi_is_client);
84 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
85 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
88 flags = breq->blk_flags;
90 /* NB: this is not going to work for variable page size,
91 * but we have to keep it for compatibility */
92 len = npg * PAGE_SIZE;
96 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
98 /* I should never get this step if it's unknown feature
99 * because make_session will reject unknown feature */
100 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
103 flags = breq->blk_flags;
105 off = breq->blk_offset & ~PAGE_MASK;
106 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
109 if (off % BRW_MSIZE != 0)
112 if (npg > LNET_MAX_IOV || npg <= 0)
115 if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
118 if (flags != LST_BRW_CHECK_NONE &&
119 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
122 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
123 bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
124 off, npg, len, opc == LST_BRW_READ);
126 brw_client_fini(tsi);
130 tsu->tsu_private = bulk;
136 #define BRW_POISON 0xbeefbeefbeefbeefULL
137 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
138 #define BRW_MSIZE sizeof(__u64)
140 int brw_inject_one_error(void)
144 if (brw_inject_errors <= 0) return 0;
146 do_gettimeofday(&tv);
148 if ((tv.tv_usec & 1) == 0) return 0;
150 return brw_inject_errors--;
154 brw_fill_page(struct page *pg, int off, int len, int pattern, __u64 magic)
156 char *addr = page_address(pg) + off;
159 LASSERT(addr != NULL);
160 LASSERT(off % BRW_MSIZE == 0 && len % BRW_MSIZE == 0);
162 if (pattern == LST_BRW_CHECK_NONE)
165 if (magic == BRW_MAGIC)
166 magic += brw_inject_one_error();
168 if (pattern == LST_BRW_CHECK_SIMPLE) {
169 memcpy(addr, &magic, BRW_MSIZE);
170 if (len > BRW_MSIZE) {
171 addr += len - BRW_MSIZE;
172 memcpy(addr, &magic, BRW_MSIZE);
177 if (pattern == LST_BRW_CHECK_FULL) {
178 for (i = 0; i < len; i += BRW_MSIZE)
179 memcpy(addr + i, &magic, BRW_MSIZE);
186 brw_check_page(struct page *pg, int off, int len, int pattern, __u64 magic)
188 char *addr = page_address(pg) + off;
189 __u64 data = 0; /* make compiler happy */
192 LASSERT(addr != NULL);
193 LASSERT(off % BRW_MSIZE == 0 && len % BRW_MSIZE == 0);
195 if (pattern == LST_BRW_CHECK_NONE)
198 if (pattern == LST_BRW_CHECK_SIMPLE) {
199 data = *((__u64 *) addr);
203 if (len > BRW_MSIZE) {
204 addr += len - BRW_MSIZE;
205 data = *((__u64 *) addr);
212 if (pattern == LST_BRW_CHECK_FULL) {
213 for (i = 0; i < len; i += BRW_MSIZE) {
214 data = *(__u64 *)(addr + i);
224 CERROR ("Bad data in page %p: %#llx, %#llx expected\n",
230 brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
235 for (i = 0; i < bk->bk_niov; i++) {
239 pg = bk->bk_iovs[i].kiov_page;
240 off = bk->bk_iovs[i].kiov_offset;
241 len = bk->bk_iovs[i].kiov_len;
242 brw_fill_page(pg, off, len, pattern, magic);
247 brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
252 for (i = 0; i < bk->bk_niov; i++) {
256 pg = bk->bk_iovs[i].kiov_page;
257 off = bk->bk_iovs[i].kiov_offset;
258 len = bk->bk_iovs[i].kiov_len;
259 if (brw_check_page(pg, off, len, pattern, magic) != 0) {
260 CERROR("Bulk page %p (%d/%d) is corrupted!\n",
270 brw_client_prep_rpc(sfw_test_unit_t *tsu,
271 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
273 srpc_bulk_t *bulk = tsu->tsu_private;
274 sfw_test_instance_t *tsi = tsu->tsu_instance;
275 sfw_session_t *sn = tsi->tsi_batch->bat_session;
276 srpc_client_rpc_t *rpc;
277 srpc_brw_reqst_t *req;
285 LASSERT(bulk != NULL);
287 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
288 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
291 flags = breq->blk_flags;
293 len = npg * PAGE_SIZE;
296 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
299 /* I should never get this step if it's unknown feature
300 * because make_session will reject unknown feature */
301 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
304 flags = breq->blk_flags;
306 off = breq->blk_offset;
307 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
310 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
314 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
315 if (opc == LST_BRW_WRITE)
316 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
318 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
320 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
321 req->brw_flags = flags;
330 brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
332 __u64 magic = BRW_MAGIC;
333 sfw_test_instance_t *tsi = tsu->tsu_instance;
334 sfw_session_t *sn = tsi->tsi_batch->bat_session;
335 srpc_msg_t *msg = &rpc->crpc_replymsg;
336 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
337 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
341 if (rpc->crpc_status != 0) {
342 CERROR("BRW RPC to %s failed with %d\n",
343 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
344 if (!tsi->tsi_stopping) /* rpc could have been aborted */
345 atomic_inc(&sn->sn_brw_errors);
349 if (msg->msg_magic != SRPC_MSG_MAGIC) {
351 __swab32s(&reply->brw_status);
354 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
355 "BRW RPC to %s finished with brw_status: %d\n",
356 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
358 if (reply->brw_status != 0) {
359 atomic_inc(&sn->sn_brw_errors);
360 rpc->crpc_status = -(int)reply->brw_status;
364 if (reqst->brw_rw == LST_BRW_WRITE)
367 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
368 CERROR("Bulk data from %s is corrupted!\n",
369 libcfs_id2str(rpc->crpc_dest));
370 atomic_inc(&sn->sn_brw_errors);
371 rpc->crpc_status = -EBADMSG;
378 brw_server_rpc_done(srpc_server_rpc_t *rpc)
380 srpc_bulk_t *blk = rpc->srpc_bulk;
385 if (rpc->srpc_status != 0)
386 CERROR("Bulk transfer %s %s has failed: %d\n",
387 blk->bk_sink ? "from" : "to",
388 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
390 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
391 blk->bk_niov, blk->bk_sink ? "from" : "to",
392 libcfs_id2str(rpc->srpc_peer));
398 brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
400 __u64 magic = BRW_MAGIC;
401 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
402 srpc_brw_reqst_t *reqst;
403 srpc_msg_t *reqstmsg;
405 LASSERT (rpc->srpc_bulk != NULL);
406 LASSERT (rpc->srpc_reqstbuf != NULL);
408 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
409 reqst = &reqstmsg->msg_body.brw_reqst;
412 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
413 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
414 libcfs_id2str(rpc->srpc_peer), status);
418 if (reqst->brw_rw == LST_BRW_READ)
421 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
424 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
425 CERROR ("Bulk data from %s is corrupted!\n",
426 libcfs_id2str(rpc->srpc_peer));
427 reply->brw_status = EBADMSG;
434 brw_server_handle(struct srpc_server_rpc *rpc)
436 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
437 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
438 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
439 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
440 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
444 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
446 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
447 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
449 __swab32s(&reqst->brw_rw);
450 __swab32s(&reqst->brw_len);
451 __swab32s(&reqst->brw_flags);
452 __swab64s(&reqst->brw_rpyid);
453 __swab64s(&reqst->brw_bulkid);
455 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
457 reply->brw_status = 0;
458 rpc->srpc_done = brw_server_rpc_done;
460 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
461 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
462 reqst->brw_flags != LST_BRW_CHECK_FULL &&
463 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
464 reply->brw_status = EINVAL;
468 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
469 replymsg->msg_ses_feats = LST_FEATS_MASK;
470 reply->brw_status = EPROTO;
474 if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
475 /* compat with old version */
476 if ((reqst->brw_len & ~PAGE_MASK) != 0) {
477 reply->brw_status = EINVAL;
480 npg = reqst->brw_len >> PAGE_SHIFT;
483 npg = (reqst->brw_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
486 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
488 if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
489 reply->brw_status = EINVAL;
493 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
495 reqst->brw_rw == LST_BRW_WRITE);
499 if (reqst->brw_rw == LST_BRW_READ)
500 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
502 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
507 sfw_test_client_ops_t brw_test_client;
508 void brw_init_test_client(void)
510 brw_test_client.tso_init = brw_client_init;
511 brw_test_client.tso_fini = brw_client_fini;
512 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
513 brw_test_client.tso_done_rpc = brw_client_done_rpc;
516 srpc_service_t brw_test_service;
517 void brw_init_test_service(void)
520 brw_test_service.sv_id = SRPC_SERVICE_BRW;
521 brw_test_service.sv_name = "brw_test";
522 brw_test_service.sv_handler = brw_server_handle;
523 brw_test_service.sv_bulk_ready = brw_bulk_ready;
524 brw_test_service.sv_wi_total = brw_srv_workitems;