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36 * lnet/selftest/brw_test.c
38 * Author: Isaac Huang <isaac@clusterfs.com>
44 extern int brw_inject_errors;
47 brw_client_fini (sfw_test_instance_t *tsi)
52 LASSERT (tsi->tsi_is_client);
54 cfs_list_for_each_entry_typed (tsu, &tsi->tsi_units,
55 sfw_test_unit_t, tsu_list) {
56 bulk = tsu->tsu_private;
57 if (bulk == NULL) continue;
60 tsu->tsu_private = NULL;
65 brw_client_init (sfw_test_instance_t *tsi)
67 test_bulk_req_t *breq = &tsi->tsi_u.bulk;
68 int flags = breq->blk_flags;
69 int npg = breq->blk_npg;
73 LASSERT (tsi->tsi_is_client);
75 if (npg > LNET_MAX_IOV || npg <= 0)
78 if (breq->blk_opc != LST_BRW_READ && breq->blk_opc != LST_BRW_WRITE)
81 if (flags != LST_BRW_CHECK_NONE &&
82 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
85 cfs_list_for_each_entry_typed (tsu, &tsi->tsi_units,
86 sfw_test_unit_t, tsu_list) {
87 bulk = srpc_alloc_bulk(npg, breq->blk_opc == LST_BRW_READ);
93 tsu->tsu_private = bulk;
99 #define BRW_POISON 0xbeefbeefbeefbeefULL
100 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
101 #define BRW_MSIZE sizeof(__u64)
104 brw_inject_one_error (void)
108 if (brw_inject_errors <= 0) return 0;
111 gettimeofday(&tv, NULL);
113 cfs_gettimeofday(&tv);
116 if ((tv.tv_usec & 1) == 0) return 0;
118 return brw_inject_errors--;
122 brw_fill_page (cfs_page_t *pg, int pattern, __u64 magic)
124 char *addr = cfs_page_address(pg);
127 LASSERT (addr != NULL);
129 if (pattern == LST_BRW_CHECK_NONE) return;
131 if (magic == BRW_MAGIC)
132 magic += brw_inject_one_error();
134 if (pattern == LST_BRW_CHECK_SIMPLE) {
135 memcpy(addr, &magic, BRW_MSIZE);
136 addr += CFS_PAGE_SIZE - BRW_MSIZE;
137 memcpy(addr, &magic, BRW_MSIZE);
141 if (pattern == LST_BRW_CHECK_FULL) {
142 for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++)
143 memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
152 brw_check_page (cfs_page_t *pg, int pattern, __u64 magic)
154 char *addr = cfs_page_address(pg);
155 __u64 data = 0; /* make compiler happy */
158 LASSERT (addr != NULL);
160 if (pattern == LST_BRW_CHECK_NONE)
163 if (pattern == LST_BRW_CHECK_SIMPLE) {
164 data = *((__u64 *) addr);
165 if (data != magic) goto bad_data;
167 addr += CFS_PAGE_SIZE - BRW_MSIZE;
168 data = *((__u64 *) addr);
169 if (data != magic) goto bad_data;
174 if (pattern == LST_BRW_CHECK_FULL) {
175 for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++) {
176 data = *(((__u64 *) addr) + i);
177 if (data != magic) goto bad_data;
186 CERROR ("Bad data in page %p: "LPX64", "LPX64" expected\n",
192 brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
197 for (i = 0; i < bk->bk_niov; i++) {
199 pg = bk->bk_iovs[i].kiov_page;
201 LASSERT (bk->bk_pages != NULL);
202 pg = bk->bk_pages[i];
204 brw_fill_page(pg, pattern, magic);
209 brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
214 for (i = 0; i < bk->bk_niov; i++) {
216 pg = bk->bk_iovs[i].kiov_page;
218 LASSERT (bk->bk_pages != NULL);
219 pg = bk->bk_pages[i];
221 if (brw_check_page(pg, pattern, magic) != 0) {
222 CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
232 brw_client_prep_rpc (sfw_test_unit_t *tsu,
233 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
235 srpc_bulk_t *bulk = tsu->tsu_private;
236 sfw_test_instance_t *tsi = tsu->tsu_instance;
237 test_bulk_req_t *breq = &tsi->tsi_u.bulk;
238 int npg = breq->blk_npg;
239 int flags = breq->blk_flags;
240 srpc_client_rpc_t *rpc;
241 srpc_brw_reqst_t *req;
244 LASSERT (bulk != NULL);
245 LASSERT (bulk->bk_niov == npg);
247 rc = sfw_create_test_rpc(tsu, dest, npg, npg * CFS_PAGE_SIZE, &rpc);
248 if (rc != 0) return rc;
250 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
251 if (breq->blk_opc == LST_BRW_WRITE)
252 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
254 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
256 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
257 req->brw_flags = flags;
258 req->brw_rw = breq->blk_opc;
259 req->brw_len = npg * CFS_PAGE_SIZE;
266 brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
268 __u64 magic = BRW_MAGIC;
269 sfw_test_instance_t *tsi = tsu->tsu_instance;
270 sfw_session_t *sn = tsi->tsi_batch->bat_session;
271 srpc_msg_t *msg = &rpc->crpc_replymsg;
272 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
273 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
275 LASSERT (sn != NULL);
277 if (rpc->crpc_status != 0) {
278 CERROR ("BRW RPC to %s failed with %d\n",
279 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
280 if (!tsi->tsi_stopping) /* rpc could have been aborted */
281 cfs_atomic_inc(&sn->sn_brw_errors);
285 if (msg->msg_magic != SRPC_MSG_MAGIC) {
287 __swab32s(&reply->brw_status);
290 CDEBUG (reply->brw_status ? D_WARNING : D_NET,
291 "BRW RPC to %s finished with brw_status: %d\n",
292 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
294 if (reply->brw_status != 0) {
295 cfs_atomic_inc(&sn->sn_brw_errors);
296 rpc->crpc_status = -(int)reply->brw_status;
300 if (reqst->brw_rw == LST_BRW_WRITE) goto out;
302 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
303 CERROR ("Bulk data from %s is corrupted!\n",
304 libcfs_id2str(rpc->crpc_dest));
305 cfs_atomic_inc(&sn->sn_brw_errors);
306 rpc->crpc_status = -EBADMSG;
311 rpc->crpc_bulk.bk_pages = NULL;
317 brw_server_rpc_done (srpc_server_rpc_t *rpc)
319 srpc_bulk_t *blk = rpc->srpc_bulk;
321 if (blk == NULL) return;
323 if (rpc->srpc_status != 0)
324 CERROR ("Bulk transfer %s %s has failed: %d\n",
325 blk->bk_sink ? "from" : "to",
326 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
328 CDEBUG (D_NET, "Transfered %d pages bulk data %s %s\n",
329 blk->bk_niov, blk->bk_sink ? "from" : "to",
330 libcfs_id2str(rpc->srpc_peer));
336 brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
338 __u64 magic = BRW_MAGIC;
339 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
340 srpc_brw_reqst_t *reqst;
341 srpc_msg_t *reqstmsg;
343 LASSERT (rpc->srpc_bulk != NULL);
344 LASSERT (rpc->srpc_reqstbuf != NULL);
346 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
347 reqst = &reqstmsg->msg_body.brw_reqst;
350 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
351 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
352 libcfs_id2str(rpc->srpc_peer), status);
356 if (reqst->brw_rw == LST_BRW_READ)
359 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
362 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
363 CERROR ("Bulk data from %s is corrupted!\n",
364 libcfs_id2str(rpc->srpc_peer));
365 reply->brw_status = EBADMSG;
372 brw_server_handle (srpc_server_rpc_t *rpc)
374 srpc_service_t *sv = rpc->srpc_service;
375 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
376 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
377 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
378 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
381 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
383 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
384 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
386 __swab32s(&reqstmsg->msg_type);
387 __swab32s(&reqst->brw_rw);
388 __swab32s(&reqst->brw_len);
389 __swab32s(&reqst->brw_flags);
390 __swab64s(&reqst->brw_rpyid);
391 __swab64s(&reqst->brw_bulkid);
393 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
395 rpc->srpc_done = brw_server_rpc_done;
397 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
398 reqst->brw_len == 0 || (reqst->brw_len & ~CFS_PAGE_MASK) != 0 ||
399 reqst->brw_len / CFS_PAGE_SIZE > LNET_MAX_IOV ||
400 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
401 reqst->brw_flags != LST_BRW_CHECK_FULL &&
402 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
403 reply->brw_status = EINVAL;
407 reply->brw_status = 0;
408 rc = sfw_alloc_pages(rpc, reqst->brw_len / CFS_PAGE_SIZE,
409 reqst->brw_rw == LST_BRW_WRITE);
410 if (rc != 0) return rc;
412 if (reqst->brw_rw == LST_BRW_READ)
413 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
415 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
420 sfw_test_client_ops_t brw_test_client;
421 void brw_init_test_client(void)
423 brw_test_client.tso_init = brw_client_init;
424 brw_test_client.tso_fini = brw_client_fini;
425 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
426 brw_test_client.tso_done_rpc = brw_client_done_rpc;
429 srpc_service_t brw_test_service;
430 void brw_init_test_service(void)
432 brw_test_service.sv_id = SRPC_SERVICE_BRW;
433 brw_test_service.sv_name = "brw_test";
434 brw_test_service.sv_handler = brw_server_handle;
435 brw_test_service.sv_bulk_ready = brw_bulk_ready;