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34 * lnet/selftest/brw_test.c
36 * Author: Isaac Huang <isaac@clusterfs.com>
42 extern int brw_inject_errors;
45 brw_client_fini (sfw_test_instance_t *tsi)
50 LASSERT (tsi->tsi_is_client);
52 cfs_list_for_each_entry_typed (tsu, &tsi->tsi_units,
53 sfw_test_unit_t, tsu_list) {
54 bulk = tsu->tsu_private;
55 if (bulk == NULL) continue;
58 tsu->tsu_private = NULL;
63 brw_client_init (sfw_test_instance_t *tsi)
65 test_bulk_req_t *breq = &tsi->tsi_u.bulk;
66 int flags = breq->blk_flags;
67 int npg = breq->blk_npg;
71 LASSERT (tsi->tsi_is_client);
73 if (npg > LNET_MAX_IOV || npg <= 0)
76 if (breq->blk_opc != LST_BRW_READ && breq->blk_opc != LST_BRW_WRITE)
79 if (flags != LST_BRW_CHECK_NONE &&
80 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
83 cfs_list_for_each_entry_typed (tsu, &tsi->tsi_units,
84 sfw_test_unit_t, tsu_list) {
85 bulk = srpc_alloc_bulk(npg, breq->blk_opc == LST_BRW_READ);
91 tsu->tsu_private = bulk;
97 #define BRW_POISON 0xbeefbeefbeefbeefULL
98 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
99 #define BRW_MSIZE sizeof(__u64)
102 brw_inject_one_error (void)
106 if (brw_inject_errors <= 0) return 0;
109 gettimeofday(&tv, NULL);
111 cfs_gettimeofday(&tv);
114 if ((tv.tv_usec & 1) == 0) return 0;
116 return brw_inject_errors--;
120 brw_fill_page (cfs_page_t *pg, int pattern, __u64 magic)
122 char *addr = cfs_page_address(pg);
125 LASSERT (addr != NULL);
127 if (pattern == LST_BRW_CHECK_NONE) return;
129 if (magic == BRW_MAGIC)
130 magic += brw_inject_one_error();
132 if (pattern == LST_BRW_CHECK_SIMPLE) {
133 memcpy(addr, &magic, BRW_MSIZE);
134 addr += CFS_PAGE_SIZE - BRW_MSIZE;
135 memcpy(addr, &magic, BRW_MSIZE);
139 if (pattern == LST_BRW_CHECK_FULL) {
140 for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++)
141 memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
150 brw_check_page (cfs_page_t *pg, int pattern, __u64 magic)
152 char *addr = cfs_page_address(pg);
153 __u64 data = 0; /* make compiler happy */
156 LASSERT (addr != NULL);
158 if (pattern == LST_BRW_CHECK_NONE)
161 if (pattern == LST_BRW_CHECK_SIMPLE) {
162 data = *((__u64 *) addr);
163 if (data != magic) goto bad_data;
165 addr += CFS_PAGE_SIZE - BRW_MSIZE;
166 data = *((__u64 *) addr);
167 if (data != magic) goto bad_data;
172 if (pattern == LST_BRW_CHECK_FULL) {
173 for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++) {
174 data = *(((__u64 *) addr) + i);
175 if (data != magic) goto bad_data;
184 CERROR ("Bad data in page %p: "LPX64", "LPX64" expected\n",
190 brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
195 for (i = 0; i < bk->bk_niov; i++) {
197 pg = bk->bk_iovs[i].kiov_page;
199 LASSERT (bk->bk_pages != NULL);
200 pg = bk->bk_pages[i];
202 brw_fill_page(pg, pattern, magic);
207 brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
212 for (i = 0; i < bk->bk_niov; i++) {
214 pg = bk->bk_iovs[i].kiov_page;
216 LASSERT (bk->bk_pages != NULL);
217 pg = bk->bk_pages[i];
219 if (brw_check_page(pg, pattern, magic) != 0) {
220 CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
230 brw_client_prep_rpc (sfw_test_unit_t *tsu,
231 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
233 srpc_bulk_t *bulk = tsu->tsu_private;
234 sfw_test_instance_t *tsi = tsu->tsu_instance;
235 test_bulk_req_t *breq = &tsi->tsi_u.bulk;
236 int npg = breq->blk_npg;
237 int flags = breq->blk_flags;
238 srpc_client_rpc_t *rpc;
239 srpc_brw_reqst_t *req;
242 LASSERT (bulk != NULL);
243 LASSERT (bulk->bk_niov == npg);
245 rc = sfw_create_test_rpc(tsu, dest, npg, npg * CFS_PAGE_SIZE, &rpc);
246 if (rc != 0) return rc;
248 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
249 if (breq->blk_opc == LST_BRW_WRITE)
250 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
252 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
254 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
255 req->brw_flags = flags;
256 req->brw_rw = breq->blk_opc;
257 req->brw_len = npg * CFS_PAGE_SIZE;
264 brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
266 __u64 magic = BRW_MAGIC;
267 sfw_test_instance_t *tsi = tsu->tsu_instance;
268 sfw_session_t *sn = tsi->tsi_batch->bat_session;
269 srpc_msg_t *msg = &rpc->crpc_replymsg;
270 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
271 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
273 LASSERT (sn != NULL);
275 if (rpc->crpc_status != 0) {
276 CERROR ("BRW RPC to %s failed with %d\n",
277 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
278 if (!tsi->tsi_stopping) /* rpc could have been aborted */
279 cfs_atomic_inc(&sn->sn_brw_errors);
283 if (msg->msg_magic != SRPC_MSG_MAGIC) {
285 __swab32s(&reply->brw_status);
288 CDEBUG (reply->brw_status ? D_WARNING : D_NET,
289 "BRW RPC to %s finished with brw_status: %d\n",
290 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
292 if (reply->brw_status != 0) {
293 cfs_atomic_inc(&sn->sn_brw_errors);
294 rpc->crpc_status = -(int)reply->brw_status;
298 if (reqst->brw_rw == LST_BRW_WRITE) goto out;
300 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
301 CERROR ("Bulk data from %s is corrupted!\n",
302 libcfs_id2str(rpc->crpc_dest));
303 cfs_atomic_inc(&sn->sn_brw_errors);
304 rpc->crpc_status = -EBADMSG;
309 rpc->crpc_bulk.bk_pages = NULL;
315 brw_server_rpc_done (srpc_server_rpc_t *rpc)
317 srpc_bulk_t *blk = rpc->srpc_bulk;
319 if (blk == NULL) return;
321 if (rpc->srpc_status != 0)
322 CERROR ("Bulk transfer %s %s has failed: %d\n",
323 blk->bk_sink ? "from" : "to",
324 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
326 CDEBUG (D_NET, "Transfered %d pages bulk data %s %s\n",
327 blk->bk_niov, blk->bk_sink ? "from" : "to",
328 libcfs_id2str(rpc->srpc_peer));
334 brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
336 __u64 magic = BRW_MAGIC;
337 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
338 srpc_brw_reqst_t *reqst;
339 srpc_msg_t *reqstmsg;
341 LASSERT (rpc->srpc_bulk != NULL);
342 LASSERT (rpc->srpc_reqstbuf != NULL);
344 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
345 reqst = &reqstmsg->msg_body.brw_reqst;
348 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
349 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
350 libcfs_id2str(rpc->srpc_peer), status);
354 if (reqst->brw_rw == LST_BRW_READ)
357 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
360 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
361 CERROR ("Bulk data from %s is corrupted!\n",
362 libcfs_id2str(rpc->srpc_peer));
363 reply->brw_status = EBADMSG;
370 brw_server_handle (srpc_server_rpc_t *rpc)
372 srpc_service_t *sv = rpc->srpc_service;
373 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
374 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
375 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
376 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
379 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
381 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
382 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
384 __swab32s(&reqstmsg->msg_type);
385 __swab32s(&reqst->brw_rw);
386 __swab32s(&reqst->brw_len);
387 __swab32s(&reqst->brw_flags);
388 __swab64s(&reqst->brw_rpyid);
389 __swab64s(&reqst->brw_bulkid);
391 LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
393 rpc->srpc_done = brw_server_rpc_done;
395 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
396 reqst->brw_len == 0 || (reqst->brw_len & ~CFS_PAGE_MASK) != 0 ||
397 reqst->brw_len / CFS_PAGE_SIZE > LNET_MAX_IOV ||
398 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
399 reqst->brw_flags != LST_BRW_CHECK_FULL &&
400 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
401 reply->brw_status = EINVAL;
405 reply->brw_status = 0;
406 rc = sfw_alloc_pages(rpc, reqst->brw_len / CFS_PAGE_SIZE,
407 reqst->brw_rw == LST_BRW_WRITE);
408 if (rc != 0) return rc;
410 if (reqst->brw_rw == LST_BRW_READ)
411 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
413 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
418 sfw_test_client_ops_t brw_test_client;
419 void brw_init_test_client(void)
421 brw_test_client.tso_init = brw_client_init;
422 brw_test_client.tso_fini = brw_client_fini;
423 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
424 brw_test_client.tso_done_rpc = brw_client_done_rpc;
427 srpc_service_t brw_test_service;
428 void brw_init_test_service(void)
430 brw_test_service.sv_id = SRPC_SERVICE_BRW;
431 brw_test_service.sv_name = "brw_test";
432 brw_test_service.sv_handler = brw_server_handle;
433 brw_test_service.sv_bulk_ready = brw_bulk_ready;