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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) == 0) {
84 test_bulk_req_t *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_CACHE_SIZE;
94 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
96 /* I should never get this step if it's unknown feature
97 * because make_session will reject unknown feature */
98 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
101 flags = breq->blk_flags;
103 npg = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
106 if (npg > LNET_MAX_IOV || npg <= 0)
109 if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
112 if (flags != LST_BRW_CHECK_NONE &&
113 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
116 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
117 bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
118 npg, len, opc == LST_BRW_READ);
120 brw_client_fini(tsi);
124 tsu->tsu_private = bulk;
130 #define BRW_POISON 0xbeefbeefbeefbeefULL
131 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
132 #define BRW_MSIZE sizeof(__u64)
135 brw_inject_one_error(void)
139 if (brw_inject_errors <= 0)
142 do_gettimeofday(&tv);
144 if ((tv.tv_usec & 1) == 0)
147 return brw_inject_errors--;
151 brw_fill_page(struct page *pg, int pattern, __u64 magic)
153 char *addr = page_address(pg);
156 LASSERT(addr != NULL);
158 if (pattern == LST_BRW_CHECK_NONE)
161 if (magic == BRW_MAGIC)
162 magic += brw_inject_one_error();
164 if (pattern == LST_BRW_CHECK_SIMPLE) {
165 memcpy(addr, &magic, BRW_MSIZE);
166 addr += PAGE_CACHE_SIZE - BRW_MSIZE;
167 memcpy(addr, &magic, BRW_MSIZE);
171 if (pattern == LST_BRW_CHECK_FULL) {
172 for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++)
173 memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
182 brw_check_page(struct page *pg, int pattern, __u64 magic)
184 char *addr = page_address(pg);
185 __u64 data = 0; /* make compiler happy */
188 LASSERT(addr != NULL);
190 if (pattern == LST_BRW_CHECK_NONE)
193 if (pattern == LST_BRW_CHECK_SIMPLE) {
194 data = *((__u64 *) addr);
198 addr += PAGE_CACHE_SIZE - BRW_MSIZE;
199 data = *((__u64 *) addr);
206 if (pattern == LST_BRW_CHECK_FULL) {
207 for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
208 data = *(((__u64 *) addr) + i);
219 CERROR("Bad data in page %p: %#llx, %#llx expected\n",
225 brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
230 for (i = 0; i < bk->bk_niov; i++) {
231 pg = bk->bk_iovs[i].kiov_page;
232 brw_fill_page(pg, pattern, magic);
237 brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
242 for (i = 0; i < bk->bk_niov; i++) {
243 pg = bk->bk_iovs[i].kiov_page;
244 if (brw_check_page(pg, pattern, magic) != 0) {
245 CERROR("Bulk page %p (%d/%d) is corrupted!\n",
255 brw_client_prep_rpc(sfw_test_unit_t *tsu,
256 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
258 srpc_bulk_t *bulk = tsu->tsu_private;
259 sfw_test_instance_t *tsi = tsu->tsu_instance;
260 sfw_session_t *sn = tsi->tsi_batch->bat_session;
261 srpc_client_rpc_t *rpc;
262 srpc_brw_reqst_t *req;
270 LASSERT(bulk != NULL);
272 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
273 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
276 flags = breq->blk_flags;
278 len = npg * PAGE_CACHE_SIZE;
281 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
283 /* I should never get this step if it's unknown feature
284 * because make_session will reject unknown feature */
285 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
288 flags = breq->blk_flags;
290 npg = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
293 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
297 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
298 if (opc == LST_BRW_WRITE)
299 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
301 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
303 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
304 req->brw_flags = flags;
313 brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
315 __u64 magic = BRW_MAGIC;
316 sfw_test_instance_t *tsi = tsu->tsu_instance;
317 sfw_session_t *sn = tsi->tsi_batch->bat_session;
318 srpc_msg_t *msg = &rpc->crpc_replymsg;
319 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
320 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
324 if (rpc->crpc_status != 0) {
325 CERROR("BRW RPC to %s failed with %d\n",
326 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
327 if (!tsi->tsi_stopping) /* rpc could have been aborted */
328 atomic_inc(&sn->sn_brw_errors);
332 if (msg->msg_magic != SRPC_MSG_MAGIC) {
334 __swab32s(&reply->brw_status);
337 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
338 "BRW RPC to %s finished with brw_status: %d\n",
339 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
341 if (reply->brw_status != 0) {
342 atomic_inc(&sn->sn_brw_errors);
343 rpc->crpc_status = -(int)reply->brw_status;
347 if (reqst->brw_rw == LST_BRW_WRITE)
350 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
351 CERROR("Bulk data from %s is corrupted!\n",
352 libcfs_id2str(rpc->crpc_dest));
353 atomic_inc(&sn->sn_brw_errors);
354 rpc->crpc_status = -EBADMSG;
362 brw_server_rpc_done(srpc_server_rpc_t *rpc)
364 srpc_bulk_t *blk = rpc->srpc_bulk;
369 if (rpc->srpc_status != 0)
370 CERROR("Bulk transfer %s %s has failed: %d\n",
371 blk->bk_sink ? "from" : "to",
372 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
374 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
375 blk->bk_niov, blk->bk_sink ? "from" : "to",
376 libcfs_id2str(rpc->srpc_peer));
382 brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
384 __u64 magic = BRW_MAGIC;
385 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
386 srpc_brw_reqst_t *reqst;
387 srpc_msg_t *reqstmsg;
389 LASSERT(rpc->srpc_bulk != NULL);
390 LASSERT(rpc->srpc_reqstbuf != NULL);
392 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
393 reqst = &reqstmsg->msg_body.brw_reqst;
396 CERROR("BRW bulk %s failed for RPC from %s: %d\n",
397 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
398 libcfs_id2str(rpc->srpc_peer), status);
402 if (reqst->brw_rw == LST_BRW_READ)
405 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
408 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
409 CERROR("Bulk data from %s is corrupted!\n",
410 libcfs_id2str(rpc->srpc_peer));
411 reply->brw_status = EBADMSG;
418 brw_server_handle(struct srpc_server_rpc *rpc)
420 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
421 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
422 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
423 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
424 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
428 LASSERT(sv->sv_id == SRPC_SERVICE_BRW);
430 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
431 LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
433 __swab32s(&reqst->brw_rw);
434 __swab32s(&reqst->brw_len);
435 __swab32s(&reqst->brw_flags);
436 __swab64s(&reqst->brw_rpyid);
437 __swab64s(&reqst->brw_bulkid);
439 LASSERT(reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
441 reply->brw_status = 0;
442 rpc->srpc_done = brw_server_rpc_done;
444 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
445 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
446 reqst->brw_flags != LST_BRW_CHECK_FULL &&
447 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
448 reply->brw_status = EINVAL;
452 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
453 replymsg->msg_ses_feats = LST_FEATS_MASK;
454 reply->brw_status = EPROTO;
458 if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
459 /* compat with old version */
460 if ((reqst->brw_len & ~CFS_PAGE_MASK) != 0) {
461 reply->brw_status = EINVAL;
464 npg = reqst->brw_len >> PAGE_CACHE_SHIFT;
467 npg = (reqst->brw_len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
470 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
472 if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
473 reply->brw_status = EINVAL;
477 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
479 reqst->brw_rw == LST_BRW_WRITE);
483 if (reqst->brw_rw == LST_BRW_READ)
484 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
486 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
491 sfw_test_client_ops_t brw_test_client;
492 void brw_init_test_client(void)
494 brw_test_client.tso_init = brw_client_init;
495 brw_test_client.tso_fini = brw_client_fini;
496 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
497 brw_test_client.tso_done_rpc = brw_client_done_rpc;
500 srpc_service_t brw_test_service;
501 void brw_init_test_service(void)
504 brw_test_service.sv_id = SRPC_SERVICE_BRW;
505 brw_test_service.sv_name = "brw_test";
506 brw_test_service.sv_handler = brw_server_handle;
507 brw_test_service.sv_bulk_ready = brw_bulk_ready;
508 brw_test_service.sv_wi_total = brw_srv_workitems;