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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");
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;
81 LASSERT(tsi->tsi_is_client);
83 if (!(sn->sn_features & LST_FEAT_BULK_LEN)) {
84 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
87 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
93 len = npg * PAGE_CACHE_SIZE;
96 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
99 * I should never get this step if it's unknown feature
100 * because make_session will reject unknown feature
102 LASSERT(!(sn->sn_features & ~LST_FEATS_MASK));
105 flags = breq->blk_flags;
107 npg = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
110 if (npg > LNET_MAX_IOV || npg <= 0)
113 if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
116 if (flags != LST_BRW_CHECK_NONE &&
117 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
120 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
121 bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
122 npg, len, opc == LST_BRW_READ);
124 brw_client_fini(tsi);
128 tsu->tsu_private = bulk;
134 #define BRW_POISON 0xbeefbeefbeefbeefULL
135 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
136 #define BRW_MSIZE sizeof(__u64)
139 brw_inject_one_error(void)
141 struct timespec64 ts;
143 if (brw_inject_errors <= 0)
148 if (!((ts.tv_nsec / NSEC_PER_USEC) & 1))
151 return brw_inject_errors--;
155 brw_fill_page(struct page *pg, int pattern, __u64 magic)
157 char *addr = page_address(pg);
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 addr += PAGE_CACHE_SIZE - BRW_MSIZE;
171 memcpy(addr, &magic, BRW_MSIZE);
175 if (pattern == LST_BRW_CHECK_FULL) {
176 for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++)
177 memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
185 brw_check_page(struct page *pg, int pattern, __u64 magic)
187 char *addr = page_address(pg);
188 __u64 data = 0; /* make compiler happy */
193 if (pattern == LST_BRW_CHECK_NONE)
196 if (pattern == LST_BRW_CHECK_SIMPLE) {
197 data = *((__u64 *)addr);
201 addr += PAGE_CACHE_SIZE - BRW_MSIZE;
202 data = *((__u64 *)addr);
209 if (pattern == LST_BRW_CHECK_FULL) {
210 for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
211 data = *(((__u64 *)addr) + i);
222 CERROR("Bad data in page %p: %#llx, %#llx expected\n",
228 brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
233 for (i = 0; i < bk->bk_niov; i++) {
234 pg = bk->bk_iovs[i].kiov_page;
235 brw_fill_page(pg, pattern, magic);
240 brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
245 for (i = 0; i < bk->bk_niov; i++) {
246 pg = bk->bk_iovs[i].kiov_page;
247 if (brw_check_page(pg, pattern, magic)) {
248 CERROR("Bulk page %p (%d/%d) is corrupted!\n",
258 brw_client_prep_rpc(sfw_test_unit_t *tsu,
259 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
261 srpc_bulk_t *bulk = tsu->tsu_private;
262 sfw_test_instance_t *tsi = tsu->tsu_instance;
263 sfw_session_t *sn = tsi->tsi_batch->bat_session;
264 srpc_client_rpc_t *rpc;
265 srpc_brw_reqst_t *req;
275 if (!(sn->sn_features & LST_FEAT_BULK_LEN)) {
276 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
279 flags = breq->blk_flags;
281 len = npg * PAGE_CACHE_SIZE;
284 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
287 * I should never get this step if it's unknown feature
288 * because make_session will reject unknown feature
290 LASSERT(!(sn->sn_features & ~LST_FEATS_MASK));
293 flags = breq->blk_flags;
295 npg = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
298 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
302 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
303 if (opc == LST_BRW_WRITE)
304 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
306 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
308 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
309 req->brw_flags = flags;
318 brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
320 __u64 magic = BRW_MAGIC;
321 sfw_test_instance_t *tsi = tsu->tsu_instance;
322 sfw_session_t *sn = tsi->tsi_batch->bat_session;
323 srpc_msg_t *msg = &rpc->crpc_replymsg;
324 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
325 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
329 if (rpc->crpc_status) {
330 CERROR("BRW RPC to %s failed with %d\n",
331 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
332 if (!tsi->tsi_stopping) /* rpc could have been aborted */
333 atomic_inc(&sn->sn_brw_errors);
337 if (msg->msg_magic != SRPC_MSG_MAGIC) {
339 __swab32s(&reply->brw_status);
342 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
343 "BRW RPC to %s finished with brw_status: %d\n",
344 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
346 if (reply->brw_status) {
347 atomic_inc(&sn->sn_brw_errors);
348 rpc->crpc_status = -(int)reply->brw_status;
352 if (reqst->brw_rw == LST_BRW_WRITE)
355 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic)) {
356 CERROR("Bulk data from %s is corrupted!\n",
357 libcfs_id2str(rpc->crpc_dest));
358 atomic_inc(&sn->sn_brw_errors);
359 rpc->crpc_status = -EBADMSG;
364 brw_server_rpc_done(struct srpc_server_rpc *rpc)
366 srpc_bulk_t *blk = rpc->srpc_bulk;
371 if (rpc->srpc_status)
372 CERROR("Bulk transfer %s %s has failed: %d\n",
373 blk->bk_sink ? "from" : "to",
374 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
376 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
377 blk->bk_niov, blk->bk_sink ? "from" : "to",
378 libcfs_id2str(rpc->srpc_peer));
384 brw_bulk_ready(struct srpc_server_rpc *rpc, int status)
386 __u64 magic = BRW_MAGIC;
387 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
388 srpc_brw_reqst_t *reqst;
389 srpc_msg_t *reqstmsg;
391 LASSERT(rpc->srpc_bulk);
392 LASSERT(rpc->srpc_reqstbuf);
394 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
395 reqst = &reqstmsg->msg_body.brw_reqst;
398 CERROR("BRW bulk %s failed for RPC from %s: %d\n",
399 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
400 libcfs_id2str(rpc->srpc_peer), status);
404 if (reqst->brw_rw == LST_BRW_READ)
407 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
410 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic)) {
411 CERROR("Bulk data from %s is corrupted!\n",
412 libcfs_id2str(rpc->srpc_peer));
413 reply->brw_status = EBADMSG;
420 brw_server_handle(struct srpc_server_rpc *rpc)
422 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
423 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
424 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
425 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
426 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
430 LASSERT(sv->sv_id == SRPC_SERVICE_BRW);
432 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
433 LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
435 __swab32s(&reqst->brw_rw);
436 __swab32s(&reqst->brw_len);
437 __swab32s(&reqst->brw_flags);
438 __swab64s(&reqst->brw_rpyid);
439 __swab64s(&reqst->brw_bulkid);
441 LASSERT(reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
443 reply->brw_status = 0;
444 rpc->srpc_done = brw_server_rpc_done;
446 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
447 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
448 reqst->brw_flags != LST_BRW_CHECK_FULL &&
449 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
450 reply->brw_status = EINVAL;
454 if (reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) {
455 replymsg->msg_ses_feats = LST_FEATS_MASK;
456 reply->brw_status = EPROTO;
460 if (!(reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN)) {
461 /* compat with old version */
462 if (reqst->brw_len & ~CFS_PAGE_MASK) {
463 reply->brw_status = EINVAL;
466 npg = reqst->brw_len >> PAGE_CACHE_SHIFT;
469 npg = (reqst->brw_len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
472 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
474 if (!reqst->brw_len || npg > LNET_MAX_IOV) {
475 reply->brw_status = EINVAL;
479 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
481 reqst->brw_rw == LST_BRW_WRITE);
485 if (reqst->brw_rw == LST_BRW_READ)
486 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
488 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
493 sfw_test_client_ops_t brw_test_client;
494 void brw_init_test_client(void)
496 brw_test_client.tso_init = brw_client_init;
497 brw_test_client.tso_fini = brw_client_fini;
498 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
499 brw_test_client.tso_done_rpc = brw_client_done_rpc;
502 srpc_service_t brw_test_service;
503 void brw_init_test_service(void)
505 brw_test_service.sv_id = SRPC_SERVICE_BRW;
506 brw_test_service.sv_name = "brw_test";
507 brw_test_service.sv_handler = brw_server_handle;
508 brw_test_service.sv_bulk_ready = brw_bulk_ready;
509 brw_test_service.sv_wi_total = brw_srv_workitems;