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36 * lnet/selftest/brw_test.c
38 * Author: Isaac Huang <isaac@clusterfs.com>
43 static int brw_srv_workitems = SFW_TEST_WI_MAX;
44 module_param(brw_srv_workitems, int, 0644);
45 MODULE_PARM_DESC(brw_srv_workitems, "# BRW server workitems");
47 static int brw_inject_errors;
48 module_param(brw_inject_errors, int, 0644);
49 MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default");
51 #define BRW_POISON 0xbeefbeefbeefbeefULL
52 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
53 #define BRW_MSIZE sizeof(__u64)
56 brw_client_fini (sfw_test_instance_t *tsi)
61 LASSERT(tsi->tsi_is_client);
63 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
64 bulk = tsu->tsu_private;
69 tsu->tsu_private = NULL;
74 brw_client_init (sfw_test_instance_t *tsi)
76 sfw_session_t *sn = tsi->tsi_batch->bat_session;
86 LASSERT(tsi->tsi_is_client);
88 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
89 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
92 flags = breq->blk_flags;
94 /* NB: this is not going to work for variable page size,
95 * but we have to keep it for compatibility */
96 len = npg * PAGE_SIZE;
100 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
102 /* I should never get this step if it's unknown feature
103 * because make_session will reject unknown feature */
104 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
107 flags = breq->blk_flags;
109 off = breq->blk_offset & ~PAGE_MASK;
110 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
113 if (off % BRW_MSIZE != 0)
116 if (npg > LNET_MAX_IOV || npg <= 0)
119 if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
122 if (flags != LST_BRW_CHECK_NONE &&
123 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
126 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
127 bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
128 off, npg, len, opc == LST_BRW_READ);
130 brw_client_fini(tsi);
134 tsu->tsu_private = bulk;
140 #define BRW_POISON 0xbeefbeefbeefbeefULL
141 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
142 #define BRW_MSIZE sizeof(__u64)
144 int brw_inject_one_error(void)
148 if (brw_inject_errors <= 0) return 0;
150 do_gettimeofday(&tv);
152 if ((tv.tv_usec & 1) == 0) return 0;
154 return brw_inject_errors--;
158 brw_fill_page(struct page *pg, int off, int len, int pattern, __u64 magic)
160 char *addr = page_address(pg) + off;
163 LASSERT(addr != NULL);
164 LASSERT(off % BRW_MSIZE == 0 && len % BRW_MSIZE == 0);
166 if (pattern == LST_BRW_CHECK_NONE)
169 if (magic == BRW_MAGIC)
170 magic += brw_inject_one_error();
172 if (pattern == LST_BRW_CHECK_SIMPLE) {
173 memcpy(addr, &magic, BRW_MSIZE);
174 if (len > BRW_MSIZE) {
175 addr += len - BRW_MSIZE;
176 memcpy(addr, &magic, BRW_MSIZE);
181 if (pattern == LST_BRW_CHECK_FULL) {
182 for (i = 0; i < len; i += BRW_MSIZE)
183 memcpy(addr + i, &magic, BRW_MSIZE);
190 brw_check_page(struct page *pg, int off, int len, int pattern, __u64 magic)
192 char *addr = page_address(pg) + off;
193 __u64 data = 0; /* make compiler happy */
196 LASSERT(addr != NULL);
197 LASSERT(off % BRW_MSIZE == 0 && len % BRW_MSIZE == 0);
199 if (pattern == LST_BRW_CHECK_NONE)
202 if (pattern == LST_BRW_CHECK_SIMPLE) {
203 data = *((__u64 *) addr);
207 if (len > BRW_MSIZE) {
208 addr += len - BRW_MSIZE;
209 data = *((__u64 *) addr);
216 if (pattern == LST_BRW_CHECK_FULL) {
217 for (i = 0; i < len; i += BRW_MSIZE) {
218 data = *(__u64 *)(addr + i);
228 CERROR ("Bad data in page %p: %#llx, %#llx expected\n",
234 brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
239 for (i = 0; i < bk->bk_niov; i++) {
243 pg = bk->bk_iovs[i].kiov_page;
244 off = bk->bk_iovs[i].kiov_offset;
245 len = bk->bk_iovs[i].kiov_len;
246 brw_fill_page(pg, off, len, pattern, magic);
251 brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
256 for (i = 0; i < bk->bk_niov; i++) {
260 pg = bk->bk_iovs[i].kiov_page;
261 off = bk->bk_iovs[i].kiov_offset;
262 len = bk->bk_iovs[i].kiov_len;
263 if (brw_check_page(pg, off, len, pattern, magic) != 0) {
264 CERROR("Bulk page %p (%d/%d) is corrupted!\n",
274 brw_client_prep_rpc(sfw_test_unit_t *tsu,
275 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
277 srpc_bulk_t *bulk = tsu->tsu_private;
278 sfw_test_instance_t *tsi = tsu->tsu_instance;
279 sfw_session_t *sn = tsi->tsi_batch->bat_session;
280 srpc_client_rpc_t *rpc;
281 srpc_brw_reqst_t *req;
289 LASSERT(bulk != NULL);
291 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
292 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
295 flags = breq->blk_flags;
297 len = npg * PAGE_SIZE;
300 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
303 /* I should never get this step if it's unknown feature
304 * because make_session will reject unknown feature */
305 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
308 flags = breq->blk_flags;
310 off = breq->blk_offset;
311 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
314 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
318 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
319 if (opc == LST_BRW_WRITE)
320 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
322 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
324 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
325 req->brw_flags = flags;
334 brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
336 __u64 magic = BRW_MAGIC;
337 sfw_test_instance_t *tsi = tsu->tsu_instance;
338 sfw_session_t *sn = tsi->tsi_batch->bat_session;
339 srpc_msg_t *msg = &rpc->crpc_replymsg;
340 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
341 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
345 if (rpc->crpc_status != 0) {
346 CERROR("BRW RPC to %s failed with %d\n",
347 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
348 if (!tsi->tsi_stopping) /* rpc could have been aborted */
349 atomic_inc(&sn->sn_brw_errors);
353 if (msg->msg_magic != SRPC_MSG_MAGIC) {
355 __swab32s(&reply->brw_status);
358 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
359 "BRW RPC to %s finished with brw_status: %d\n",
360 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
362 if (reply->brw_status != 0) {
363 atomic_inc(&sn->sn_brw_errors);
364 rpc->crpc_status = -(int)reply->brw_status;
368 if (reqst->brw_rw == LST_BRW_WRITE)
371 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
372 CERROR("Bulk data from %s is corrupted!\n",
373 libcfs_id2str(rpc->crpc_dest));
374 atomic_inc(&sn->sn_brw_errors);
375 rpc->crpc_status = -EBADMSG;
382 brw_server_rpc_done(srpc_server_rpc_t *rpc)
384 srpc_bulk_t *blk = rpc->srpc_bulk;
389 if (rpc->srpc_status != 0)
390 CERROR("Bulk transfer %s %s has failed: %d\n",
391 blk->bk_sink ? "from" : "to",
392 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
394 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
395 blk->bk_niov, blk->bk_sink ? "from" : "to",
396 libcfs_id2str(rpc->srpc_peer));
402 brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
404 __u64 magic = BRW_MAGIC;
405 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
406 srpc_brw_reqst_t *reqst;
407 srpc_msg_t *reqstmsg;
409 LASSERT (rpc->srpc_bulk != NULL);
410 LASSERT (rpc->srpc_reqstbuf != NULL);
412 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
413 reqst = &reqstmsg->msg_body.brw_reqst;
416 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
417 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
418 libcfs_id2str(rpc->srpc_peer), status);
422 if (reqst->brw_rw == LST_BRW_READ)
425 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
428 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
429 CERROR ("Bulk data from %s is corrupted!\n",
430 libcfs_id2str(rpc->srpc_peer));
431 reply->brw_status = EBADMSG;
438 brw_server_handle(struct srpc_server_rpc *rpc)
440 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
441 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
442 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
443 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
444 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
448 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
450 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
451 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
453 __swab32s(&reqst->brw_rw);
454 __swab32s(&reqst->brw_len);
455 __swab32s(&reqst->brw_flags);
456 __swab64s(&reqst->brw_rpyid);
457 __swab64s(&reqst->brw_bulkid);
459 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
461 reply->brw_status = 0;
462 rpc->srpc_done = brw_server_rpc_done;
464 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
465 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
466 reqst->brw_flags != LST_BRW_CHECK_FULL &&
467 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
468 reply->brw_status = EINVAL;
472 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
473 replymsg->msg_ses_feats = LST_FEATS_MASK;
474 reply->brw_status = EPROTO;
478 if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
479 /* compat with old version */
480 if ((reqst->brw_len & ~PAGE_MASK) != 0) {
481 reply->brw_status = EINVAL;
484 npg = reqst->brw_len >> PAGE_SHIFT;
487 npg = (reqst->brw_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
490 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
492 if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
493 reply->brw_status = EINVAL;
497 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
499 reqst->brw_rw == LST_BRW_WRITE);
503 if (reqst->brw_rw == LST_BRW_READ)
504 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
506 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
511 sfw_test_client_ops_t brw_test_client;
512 void brw_init_test_client(void)
514 brw_test_client.tso_init = brw_client_init;
515 brw_test_client.tso_fini = brw_client_fini;
516 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
517 brw_test_client.tso_done_rpc = brw_client_done_rpc;
520 srpc_service_t brw_test_service;
521 void brw_init_test_service(void)
524 brw_test_service.sv_id = SRPC_SERVICE_BRW;
525 brw_test_service.sv_name = "brw_test";
526 brw_test_service.sv_handler = brw_server_handle;
527 brw_test_service.sv_bulk_ready = brw_bulk_ready;
528 brw_test_service.sv_wi_total = brw_srv_workitems;