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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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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/
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(struct sfw_test_instance *tsi)
54 struct srpc_bulk *bulk;
55 struct sfw_test_unit *tsu;
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(struct sfw_test_instance *tsi)
72 struct sfw_session *sn = tsi->tsi_batch->bat_session;
78 struct srpc_bulk *bulk;
79 struct sfw_test_unit *tsu;
82 LASSERT(tsi->tsi_is_client);
84 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
85 struct test_bulk_req *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 struct test_bulk_req_v1 *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, NULL),
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 static int brw_inject_one_error(void)
142 struct timespec64 ts;
144 if (brw_inject_errors <= 0) return 0;
148 if (((ts.tv_nsec / NSEC_PER_USEC) & 1) == 0)
151 return brw_inject_errors--;
155 brw_fill_page(struct page *pg, int off, int len, int pattern, __u64 magic)
157 char *addr = page_address(pg) + off;
160 LASSERT(addr != NULL);
161 LASSERT(off % BRW_MSIZE == 0 && len % BRW_MSIZE == 0);
163 if (pattern == LST_BRW_CHECK_NONE)
166 if (magic == BRW_MAGIC)
167 magic += brw_inject_one_error();
169 if (pattern == LST_BRW_CHECK_SIMPLE) {
170 memcpy(addr, &magic, BRW_MSIZE);
171 if (len > BRW_MSIZE) {
172 addr += len - BRW_MSIZE;
173 memcpy(addr, &magic, BRW_MSIZE);
178 if (pattern == LST_BRW_CHECK_FULL) {
179 for (i = 0; i < len; i += BRW_MSIZE)
180 memcpy(addr + i, &magic, BRW_MSIZE);
187 brw_check_page(struct page *pg, int off, int len, int pattern, __u64 magic)
189 char *addr = page_address(pg) + off;
190 __u64 data = 0; /* make compiler happy */
193 LASSERT(addr != NULL);
194 LASSERT(off % BRW_MSIZE == 0 && len % BRW_MSIZE == 0);
196 if (pattern == LST_BRW_CHECK_NONE)
199 if (pattern == LST_BRW_CHECK_SIMPLE) {
200 data = *((__u64 *) addr);
204 if (len > BRW_MSIZE) {
205 addr += len - BRW_MSIZE;
206 data = *((__u64 *) addr);
213 if (pattern == LST_BRW_CHECK_FULL) {
214 for (i = 0; i < len; i += BRW_MSIZE) {
215 data = *(__u64 *)(addr + i);
225 CERROR ("Bad data in page %p: %#llx, %#llx expected\n",
231 brw_fill_bulk(struct srpc_bulk *bk, int pattern, __u64 magic)
236 for (i = 0; i < bk->bk_niov; i++) {
240 pg = bk->bk_iovs[i].kiov_page;
241 off = bk->bk_iovs[i].kiov_offset;
242 len = bk->bk_iovs[i].kiov_len;
243 brw_fill_page(pg, off, len, pattern, magic);
248 brw_check_bulk(struct srpc_bulk *bk, int pattern, __u64 magic)
253 for (i = 0; i < bk->bk_niov; i++) {
257 pg = bk->bk_iovs[i].kiov_page;
258 off = bk->bk_iovs[i].kiov_offset;
259 len = bk->bk_iovs[i].kiov_len;
260 if (brw_check_page(pg, off, len, pattern, magic) != 0) {
261 CERROR("Bulk page %p (%d/%d) is corrupted!\n",
271 brw_client_prep_rpc(struct sfw_test_unit *tsu, struct lnet_process_id dest,
272 struct srpc_client_rpc **rpcpp)
274 struct srpc_bulk *bulk = tsu->tsu_private;
275 struct sfw_test_instance *tsi = tsu->tsu_instance;
276 struct sfw_session *sn = tsi->tsi_batch->bat_session;
277 struct srpc_client_rpc *rpc;
278 struct srpc_brw_reqst *req;
286 LASSERT(bulk != NULL);
288 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
289 struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0;
292 flags = breq->blk_flags;
294 len = npg * PAGE_SIZE;
297 struct test_bulk_req_v1 *breq = &tsi->tsi_u.bulk_v1;
300 /* I should never get this step if it's unknown feature
301 * because make_session will reject unknown feature */
302 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
305 flags = breq->blk_flags;
307 off = breq->blk_offset;
308 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
311 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
315 memcpy(&rpc->crpc_bulk, bulk, offsetof(struct srpc_bulk, bk_iovs[npg]));
316 if (opc == LST_BRW_WRITE)
317 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
319 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
321 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
322 req->brw_flags = flags;
331 brw_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc)
333 __u64 magic = BRW_MAGIC;
334 struct sfw_test_instance *tsi = tsu->tsu_instance;
335 struct sfw_session *sn = tsi->tsi_batch->bat_session;
336 struct srpc_msg *msg = &rpc->crpc_replymsg;
337 struct srpc_brw_reply *reply = &msg->msg_body.brw_reply;
338 struct srpc_brw_reqst *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
342 if (rpc->crpc_status != 0) {
343 CERROR("BRW RPC to %s failed with %d\n",
344 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
345 if (!tsi->tsi_stopping) /* rpc could have been aborted */
346 atomic_inc(&sn->sn_brw_errors);
350 if (msg->msg_magic != SRPC_MSG_MAGIC) {
352 __swab32s(&reply->brw_status);
355 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
356 "BRW RPC to %s finished with brw_status: %d\n",
357 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
359 if (reply->brw_status != 0) {
360 atomic_inc(&sn->sn_brw_errors);
361 rpc->crpc_status = -(int)reply->brw_status;
365 if (reqst->brw_rw == LST_BRW_WRITE)
368 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
369 CERROR("Bulk data from %s is corrupted!\n",
370 libcfs_id2str(rpc->crpc_dest));
371 atomic_inc(&sn->sn_brw_errors);
372 rpc->crpc_status = -EBADMSG;
379 brw_server_rpc_done(struct srpc_server_rpc *rpc)
381 struct srpc_bulk *blk = rpc->srpc_bulk;
386 if (rpc->srpc_status != 0)
387 CERROR("Bulk transfer %s %s has failed: %d\n",
388 blk->bk_sink ? "from" : "to",
389 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
391 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
392 blk->bk_niov, blk->bk_sink ? "from" : "to",
393 libcfs_id2str(rpc->srpc_peer));
399 brw_bulk_ready(struct srpc_server_rpc *rpc, int status)
401 __u64 magic = BRW_MAGIC;
402 struct srpc_brw_reply *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
403 struct srpc_brw_reqst *reqst;
404 struct srpc_msg *reqstmsg;
406 LASSERT (rpc->srpc_bulk != NULL);
407 LASSERT (rpc->srpc_reqstbuf != NULL);
409 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
410 reqst = &reqstmsg->msg_body.brw_reqst;
413 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
414 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
415 libcfs_id2str(rpc->srpc_peer), status);
419 if (reqst->brw_rw == LST_BRW_READ)
422 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
425 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
426 CERROR ("Bulk data from %s is corrupted!\n",
427 libcfs_id2str(rpc->srpc_peer));
428 reply->brw_status = EBADMSG;
435 brw_server_handle(struct srpc_server_rpc *rpc)
437 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
438 struct srpc_msg *replymsg = &rpc->srpc_replymsg;
439 struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
440 struct srpc_brw_reply *reply = &replymsg->msg_body.brw_reply;
441 struct srpc_brw_reqst *reqst = &reqstmsg->msg_body.brw_reqst;
445 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
447 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
448 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
450 __swab32s(&reqst->brw_rw);
451 __swab32s(&reqst->brw_len);
452 __swab32s(&reqst->brw_flags);
453 __swab64s(&reqst->brw_rpyid);
454 __swab64s(&reqst->brw_bulkid);
456 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
458 reply->brw_status = 0;
459 rpc->srpc_done = brw_server_rpc_done;
461 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
462 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
463 reqst->brw_flags != LST_BRW_CHECK_FULL &&
464 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
465 reply->brw_status = EINVAL;
469 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
470 replymsg->msg_ses_feats = LST_FEATS_MASK;
471 reply->brw_status = EPROTO;
475 if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
476 /* compat with old version */
477 if ((reqst->brw_len & ~PAGE_MASK) != 0) {
478 reply->brw_status = EINVAL;
481 npg = reqst->brw_len >> PAGE_SHIFT;
484 npg = (reqst->brw_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
487 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
489 if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
490 reply->brw_status = EINVAL;
494 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
496 reqst->brw_rw == LST_BRW_WRITE);
500 if (reqst->brw_rw == LST_BRW_READ)
501 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
503 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
508 struct sfw_test_client_ops brw_test_client;
510 void brw_init_test_client(void)
512 brw_test_client.tso_init = brw_client_init;
513 brw_test_client.tso_fini = brw_client_fini;
514 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
515 brw_test_client.tso_done_rpc = brw_client_done_rpc;
518 struct srpc_service brw_test_service;
520 void brw_init_test_service(void)
522 brw_test_service.sv_id = SRPC_SERVICE_BRW;
523 brw_test_service.sv_name = "brw_test";
524 brw_test_service.sv_handler = brw_server_handle;
525 brw_test_service.sv_bulk_ready = brw_bulk_ready;
526 brw_test_service.sv_wi_total = brw_srv_workitems;