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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).
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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, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lnet/selftest/brw_test.c
33 * Author: Isaac Huang <isaac@clusterfs.com>
38 static int brw_srv_workitems = SFW_TEST_WI_MAX;
39 module_param(brw_srv_workitems, int, 0644);
40 MODULE_PARM_DESC(brw_srv_workitems, "# BRW server workitems");
42 static int brw_inject_errors;
43 module_param(brw_inject_errors, int, 0644);
44 MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default");
46 #define BRW_POISON 0xbeefbeefbeefbeefULL
47 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
48 #define BRW_MSIZE sizeof(__u64)
51 brw_client_fini(struct sfw_test_instance *tsi)
53 struct srpc_bulk *bulk;
54 struct sfw_test_unit *tsu;
56 LASSERT(tsi->tsi_is_client);
58 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
59 bulk = tsu->tsu_private;
64 tsu->tsu_private = NULL;
69 brw_client_init(struct sfw_test_instance *tsi)
71 struct sfw_session *sn = tsi->tsi_batch->bat_session;
77 struct srpc_bulk *bulk;
78 struct sfw_test_unit *tsu;
81 LASSERT(tsi->tsi_is_client);
83 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
84 struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0;
87 flags = breq->blk_flags;
89 /* NB: this is not going to work for variable page size,
90 * but we have to keep it for compatibility */
91 len = npg * PAGE_SIZE;
95 struct test_bulk_req_v1 *breq = &tsi->tsi_u.bulk_v1;
97 /* I should never get this step if it's unknown feature
98 * because make_session will reject unknown feature */
99 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
102 flags = breq->blk_flags;
104 off = breq->blk_offset & ~PAGE_MASK;
105 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
108 if (off % BRW_MSIZE != 0)
111 if (npg > LNET_MAX_IOV || npg <= 0)
114 if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
117 if (flags != LST_BRW_CHECK_NONE &&
118 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
121 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
122 bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid, NULL),
123 off, npg, len, opc == LST_BRW_READ);
125 brw_client_fini(tsi);
129 tsu->tsu_private = bulk;
135 #define BRW_POISON 0xbeefbeefbeefbeefULL
136 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
137 #define BRW_MSIZE sizeof(__u64)
139 static int brw_inject_one_error(void)
141 struct timespec64 ts;
143 if (brw_inject_errors <= 0) return 0;
147 if (((ts.tv_nsec / NSEC_PER_USEC) & 1) == 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(struct srpc_bulk *bk, int pattern, __u64 magic)
235 for (i = 0; i < bk->bk_niov; i++) {
239 pg = bk->bk_iovs[i].bv_page;
240 off = bk->bk_iovs[i].bv_offset;
241 len = bk->bk_iovs[i].bv_len;
242 brw_fill_page(pg, off, len, pattern, magic);
247 brw_check_bulk(struct srpc_bulk *bk, int pattern, __u64 magic)
252 for (i = 0; i < bk->bk_niov; i++) {
256 pg = bk->bk_iovs[i].bv_page;
257 off = bk->bk_iovs[i].bv_offset;
258 len = bk->bk_iovs[i].bv_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(struct sfw_test_unit *tsu, struct lnet_process_id dest,
271 struct srpc_client_rpc **rpcpp)
273 struct srpc_bulk *bulk = tsu->tsu_private;
274 struct sfw_test_instance *tsi = tsu->tsu_instance;
275 struct sfw_session *sn = tsi->tsi_batch->bat_session;
276 struct srpc_client_rpc *rpc;
277 struct srpc_brw_reqst *req;
285 LASSERT(bulk != NULL);
287 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
288 struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0;
291 flags = breq->blk_flags;
293 len = npg * PAGE_SIZE;
296 struct test_bulk_req_v1 *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(struct srpc_bulk, 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(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc)
332 __u64 magic = BRW_MAGIC;
333 struct sfw_test_instance *tsi = tsu->tsu_instance;
334 struct sfw_session *sn = tsi->tsi_batch->bat_session;
335 struct srpc_msg *msg = &rpc->crpc_replymsg;
336 struct srpc_brw_reply *reply = &msg->msg_body.brw_reply;
337 struct srpc_brw_reqst *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;
376 brw_server_rpc_done(struct srpc_server_rpc *rpc)
378 struct srpc_bulk *blk = rpc->srpc_bulk;
383 if (rpc->srpc_status != 0)
384 CERROR("Bulk transfer %s %s has failed: %d\n",
385 blk->bk_sink ? "from" : "to",
386 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
388 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
389 blk->bk_niov, blk->bk_sink ? "from" : "to",
390 libcfs_id2str(rpc->srpc_peer));
396 brw_bulk_ready(struct srpc_server_rpc *rpc, int status)
398 __u64 magic = BRW_MAGIC;
399 struct srpc_brw_reply *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
400 struct srpc_brw_reqst *reqst;
401 struct srpc_msg *reqstmsg;
403 LASSERT (rpc->srpc_bulk != NULL);
404 LASSERT (rpc->srpc_reqstbuf != NULL);
406 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
407 reqst = &reqstmsg->msg_body.brw_reqst;
410 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
411 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
412 libcfs_id2str(rpc->srpc_peer), status);
416 if (reqst->brw_rw == LST_BRW_READ)
419 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
422 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
423 CERROR ("Bulk data from %s is corrupted!\n",
424 libcfs_id2str(rpc->srpc_peer));
425 reply->brw_status = EBADMSG;
432 brw_server_handle(struct srpc_server_rpc *rpc)
434 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
435 struct srpc_msg *replymsg = &rpc->srpc_replymsg;
436 struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
437 struct srpc_brw_reply *reply = &replymsg->msg_body.brw_reply;
438 struct srpc_brw_reqst *reqst = &reqstmsg->msg_body.brw_reqst;
442 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
444 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
445 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
447 __swab32s(&reqst->brw_rw);
448 __swab32s(&reqst->brw_len);
449 __swab32s(&reqst->brw_flags);
450 __swab64s(&reqst->brw_rpyid);
451 __swab64s(&reqst->brw_bulkid);
453 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
455 reply->brw_status = 0;
456 rpc->srpc_done = brw_server_rpc_done;
458 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
459 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
460 reqst->brw_flags != LST_BRW_CHECK_FULL &&
461 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
462 reply->brw_status = EINVAL;
466 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
467 replymsg->msg_ses_feats = LST_FEATS_MASK;
468 reply->brw_status = EPROTO;
472 if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
473 /* compat with old version */
474 if ((reqst->brw_len & ~PAGE_MASK) != 0) {
475 reply->brw_status = EINVAL;
478 npg = reqst->brw_len >> PAGE_SHIFT;
481 npg = (reqst->brw_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
484 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
486 if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
487 reply->brw_status = EINVAL;
491 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
493 reqst->brw_rw == LST_BRW_WRITE);
497 if (reqst->brw_rw == LST_BRW_READ)
498 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
500 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
505 struct sfw_test_client_ops brw_test_client;
507 void brw_init_test_client(void)
509 brw_test_client.tso_init = brw_client_init;
510 brw_test_client.tso_fini = brw_client_fini;
511 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
512 brw_test_client.tso_done_rpc = brw_client_done_rpc;
515 struct srpc_service brw_test_service;
517 void brw_init_test_service(void)
519 brw_test_service.sv_id = SRPC_SERVICE_BRW;
520 brw_test_service.sv_name = "brw_test";
521 brw_test_service.sv_handler = brw_server_handle;
522 brw_test_service.sv_bulk_ready = brw_bulk_ready;
523 brw_test_service.sv_wi_total = brw_srv_workitems;