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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)
134 static int brw_inject_one_error(void)
138 if (brw_inject_errors <= 0) return 0;
140 do_gettimeofday(&tv);
142 if ((tv.tv_usec & 1) == 0) return 0;
144 return brw_inject_errors--;
148 brw_fill_page(struct page *pg, int pattern, __u64 magic)
150 char *addr = page_address(pg);
153 LASSERT (addr != NULL);
155 if (pattern == LST_BRW_CHECK_NONE) return;
157 if (magic == BRW_MAGIC)
158 magic += brw_inject_one_error();
160 if (pattern == LST_BRW_CHECK_SIMPLE) {
161 memcpy(addr, &magic, BRW_MSIZE);
162 addr += PAGE_CACHE_SIZE - BRW_MSIZE;
163 memcpy(addr, &magic, BRW_MSIZE);
167 if (pattern == LST_BRW_CHECK_FULL) {
168 for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++)
169 memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
178 brw_check_page(struct page *pg, int pattern, __u64 magic)
180 char *addr = page_address(pg);
181 __u64 data = 0; /* make compiler happy */
184 LASSERT (addr != NULL);
186 if (pattern == LST_BRW_CHECK_NONE)
189 if (pattern == LST_BRW_CHECK_SIMPLE) {
190 data = *((__u64 *) addr);
191 if (data != magic) goto bad_data;
193 addr += PAGE_CACHE_SIZE - BRW_MSIZE;
194 data = *((__u64 *) addr);
195 if (data != magic) goto bad_data;
200 if (pattern == LST_BRW_CHECK_FULL) {
201 for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
202 data = *(((__u64 *) addr) + i);
203 if (data != magic) goto bad_data;
212 CERROR ("Bad data in page %p: %#llx, %#llx expected\n",
218 brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
223 for (i = 0; i < bk->bk_niov; i++) {
224 pg = bk->bk_iovs[i].kiov_page;
225 brw_fill_page(pg, pattern, magic);
230 brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
235 for (i = 0; i < bk->bk_niov; i++) {
236 pg = bk->bk_iovs[i].kiov_page;
237 if (brw_check_page(pg, pattern, magic) != 0) {
238 CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
248 brw_client_prep_rpc (sfw_test_unit_t *tsu,
249 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
251 srpc_bulk_t *bulk = tsu->tsu_private;
252 sfw_test_instance_t *tsi = tsu->tsu_instance;
253 sfw_session_t *sn = tsi->tsi_batch->bat_session;
254 srpc_client_rpc_t *rpc;
255 srpc_brw_reqst_t *req;
263 LASSERT(bulk != NULL);
265 if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
266 test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
269 flags = breq->blk_flags;
271 len = npg * PAGE_CACHE_SIZE;
274 test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
276 /* I should never get this step if it's unknown feature
277 * because make_session will reject unknown feature */
278 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
281 flags = breq->blk_flags;
283 npg = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
286 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
290 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
291 if (opc == LST_BRW_WRITE)
292 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
294 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
296 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
297 req->brw_flags = flags;
306 brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
308 __u64 magic = BRW_MAGIC;
309 sfw_test_instance_t *tsi = tsu->tsu_instance;
310 sfw_session_t *sn = tsi->tsi_batch->bat_session;
311 srpc_msg_t *msg = &rpc->crpc_replymsg;
312 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
313 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
317 if (rpc->crpc_status != 0) {
318 CERROR("BRW RPC to %s failed with %d\n",
319 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
320 if (!tsi->tsi_stopping) /* rpc could have been aborted */
321 atomic_inc(&sn->sn_brw_errors);
325 if (msg->msg_magic != SRPC_MSG_MAGIC) {
327 __swab32s(&reply->brw_status);
330 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
331 "BRW RPC to %s finished with brw_status: %d\n",
332 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
334 if (reply->brw_status != 0) {
335 atomic_inc(&sn->sn_brw_errors);
336 rpc->crpc_status = -(int)reply->brw_status;
340 if (reqst->brw_rw == LST_BRW_WRITE)
343 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
344 CERROR("Bulk data from %s is corrupted!\n",
345 libcfs_id2str(rpc->crpc_dest));
346 atomic_inc(&sn->sn_brw_errors);
347 rpc->crpc_status = -EBADMSG;
354 brw_server_rpc_done(srpc_server_rpc_t *rpc)
356 srpc_bulk_t *blk = rpc->srpc_bulk;
361 if (rpc->srpc_status != 0)
362 CERROR("Bulk transfer %s %s has failed: %d\n",
363 blk->bk_sink ? "from" : "to",
364 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
366 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
367 blk->bk_niov, blk->bk_sink ? "from" : "to",
368 libcfs_id2str(rpc->srpc_peer));
374 brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
376 __u64 magic = BRW_MAGIC;
377 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
378 srpc_brw_reqst_t *reqst;
379 srpc_msg_t *reqstmsg;
381 LASSERT (rpc->srpc_bulk != NULL);
382 LASSERT (rpc->srpc_reqstbuf != NULL);
384 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
385 reqst = &reqstmsg->msg_body.brw_reqst;
388 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
389 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
390 libcfs_id2str(rpc->srpc_peer), status);
394 if (reqst->brw_rw == LST_BRW_READ)
397 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
400 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
401 CERROR ("Bulk data from %s is corrupted!\n",
402 libcfs_id2str(rpc->srpc_peer));
403 reply->brw_status = EBADMSG;
410 brw_server_handle(struct srpc_server_rpc *rpc)
412 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
413 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
414 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
415 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
416 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
420 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
422 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
423 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
425 __swab32s(&reqst->brw_rw);
426 __swab32s(&reqst->brw_len);
427 __swab32s(&reqst->brw_flags);
428 __swab64s(&reqst->brw_rpyid);
429 __swab64s(&reqst->brw_bulkid);
431 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
433 reply->brw_status = 0;
434 rpc->srpc_done = brw_server_rpc_done;
436 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
437 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
438 reqst->brw_flags != LST_BRW_CHECK_FULL &&
439 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
440 reply->brw_status = EINVAL;
444 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
445 replymsg->msg_ses_feats = LST_FEATS_MASK;
446 reply->brw_status = EPROTO;
450 if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
451 /* compat with old version */
452 if ((reqst->brw_len & ~PAGE_MASK) != 0) {
453 reply->brw_status = EINVAL;
456 npg = reqst->brw_len >> PAGE_CACHE_SHIFT;
459 npg = (reqst->brw_len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
462 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
464 if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
465 reply->brw_status = EINVAL;
469 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
471 reqst->brw_rw == LST_BRW_WRITE);
475 if (reqst->brw_rw == LST_BRW_READ)
476 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
478 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
483 sfw_test_client_ops_t brw_test_client;
484 void brw_init_test_client(void)
486 brw_test_client.tso_init = brw_client_init;
487 brw_test_client.tso_fini = brw_client_fini;
488 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
489 brw_test_client.tso_done_rpc = brw_client_done_rpc;
492 srpc_service_t brw_test_service;
493 void brw_init_test_service(void)
496 brw_test_service.sv_id = SRPC_SERVICE_BRW;
497 brw_test_service.sv_name = "brw_test";
498 brw_test_service.sv_handler = brw_server_handle;
499 brw_test_service.sv_bulk_ready = brw_bulk_ready;
500 brw_test_service.sv_wi_total = brw_srv_workitems;