1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
5 * Author: Isaac Huang <isaac@clusterfs.com>
9 #include <libcfs/kp30.h>
13 static int brw_inject_errors = 0;
14 CFS_MODULE_PARM(brw_inject_errors, "i", int, 0644,
15 "# data errors to inject randomly");
18 brw_client_fini (sfw_test_instance_t *tsi)
23 list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
24 bulk = tsu->tsu_private;
25 if (bulk == NULL) continue;
28 tsu->tsu_private = NULL;
33 brw_client_init (sfw_test_instance_t *tsi)
35 test_bulk_req_t *breq = &tsi->tsi_u.bulk;
36 int flags = breq->blk_flags;
37 int npg = breq->blk_npg;
41 if (npg > LNET_MAX_IOV || npg <= 0)
44 if (breq->blk_opc != LST_BRW_READ && breq->blk_opc != LST_BRW_WRITE)
47 if (flags != LST_BRW_CHECK_NONE &&
48 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
51 list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
52 bulk = srpc_alloc_bulk(npg, breq->blk_opc == LST_BRW_READ);
58 tsu->tsu_private = bulk;
64 #define BRW_POISON 0xbeefbeefbeefbeefULL
65 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
66 #define BRW_MSIZE sizeof(__u64)
69 brw_inject_one_error (void)
73 if (brw_inject_errors <= 0) return 0;
76 gettimeofday(&tv, NULL);
81 if ((tv.tv_usec & 1) == 0) return 0;
83 return brw_inject_errors--;
87 brw_fill_page (cfs_page_t *pg, int pattern, __u64 magic)
89 char *addr = cfs_page_address(pg);
92 LASSERT (addr != NULL);
94 if (pattern == LST_BRW_CHECK_NONE)
97 if (magic == BRW_MAGIC)
98 magic += brw_inject_one_error();
100 if (pattern == LST_BRW_CHECK_SIMPLE) {
101 memcpy(addr, &magic, BRW_MSIZE);
102 addr += CFS_PAGE_SIZE - BRW_MSIZE;
103 memcpy(addr, &magic, BRW_MSIZE);
107 if (pattern == LST_BRW_CHECK_FULL) {
108 for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++)
109 memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
118 brw_check_page (cfs_page_t *pg, int pattern, __u64 magic)
120 char *addr = cfs_page_address(pg);
124 LASSERT (addr != NULL);
126 if (pattern == LST_BRW_CHECK_NONE)
129 if (pattern == LST_BRW_CHECK_SIMPLE) {
130 data = *((__u64 *) addr);
131 if (data != magic) goto bad_data;
133 addr += CFS_PAGE_SIZE - BRW_MSIZE;
134 data = *((__u64 *) addr);
135 if (data != magic) goto bad_data;
140 if (pattern == LST_BRW_CHECK_FULL) {
141 for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++) {
142 data = *(((__u64 *) addr) + i);
143 if (data != magic) goto bad_data;
152 CERROR ("Bad data in page %p: "LPU64", "LPU64" expected\n",
158 brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
163 for (i = 0; i < bk->bk_niov; i++) {
165 pg = bk->bk_iovs[i].kiov_page;
167 LASSERT (bk->bk_pages != NULL);
168 pg = bk->bk_pages[i];
170 brw_fill_page(pg, pattern, magic);
175 brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
180 for (i = 0; i < bk->bk_niov; i++) {
182 pg = bk->bk_iovs[i].kiov_page;
184 LASSERT (bk->bk_pages != NULL);
185 pg = bk->bk_pages[i];
187 if (brw_check_page(pg, pattern, magic) != 0) {
188 CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
198 brw_client_prep_rpc (sfw_test_unit_t *tsu,
199 lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
201 srpc_bulk_t *bulk = tsu->tsu_private;
202 sfw_test_instance_t *tsi = tsu->tsu_instance;
203 test_bulk_req_t *breq = &tsi->tsi_u.bulk;
204 int npg = breq->blk_npg;
205 int flags = breq->blk_flags;
206 srpc_client_rpc_t *rpc;
207 srpc_brw_reqst_t *req;
210 LASSERT (bulk != NULL);
211 LASSERT (bulk->bk_niov == npg);
213 rc = sfw_create_test_rpc(tsu, dest, npg, npg * CFS_PAGE_SIZE, &rpc);
214 if (rc != 0) return rc;
216 memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
217 if (breq->blk_opc == LST_BRW_WRITE)
218 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
220 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
222 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
223 req->brw_flags = flags;
224 req->brw_rw = breq->blk_opc;
225 req->brw_len = npg * CFS_PAGE_SIZE;
232 brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
234 __u64 magic = BRW_MAGIC;
235 srpc_msg_t *msg = &rpc->crpc_replymsg;
236 srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
237 srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
238 sfw_session_t *sn = tsu->tsu_instance->tsi_batch->bat_session;
240 LASSERT (sn != NULL);
242 if (rpc->crpc_status != 0) {
243 CERROR ("BRW RPC to %s failed with %d\n",
244 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
248 if (msg->msg_magic != SRPC_MSG_MAGIC) {
250 __swab32s(&reply->brw_status);
253 if (tsu->tsu_error == 0)
254 tsu->tsu_error = -reply->brw_status;
256 CDEBUG (reply->brw_status ? D_WARNING : D_NET,
257 "BRW RPC to %s finished with brw_status: %d\n",
258 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
260 if (reply->brw_status != 0) {
261 atomic_inc(&sn->sn_brw_errors);
265 if (reqst->brw_rw == LST_BRW_WRITE) goto out;
267 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
268 CERROR ("Bulk data from %s is corrupted!\n",
269 libcfs_id2str(rpc->crpc_dest));
270 tsu->tsu_error = -EBADMSG;
271 atomic_inc(&sn->sn_brw_errors);
276 rpc->crpc_bulk.bk_pages = NULL;
282 brw_server_rpc_done (srpc_server_rpc_t *rpc)
284 srpc_bulk_t *blk = rpc->srpc_bulk;
286 if (blk == NULL) return;
288 if (rpc->srpc_status != 0)
289 CERROR ("Bulk transfer %s %s has failed: %d\n",
290 blk->bk_sink ? "from" : "to",
291 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
293 CDEBUG (D_NET, "Transfered %d pages bulk data %s %s\n",
294 blk->bk_niov, blk->bk_sink ? "from" : "to",
295 libcfs_id2str(rpc->srpc_peer));
301 brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
303 __u64 magic = BRW_MAGIC;
304 srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
305 srpc_brw_reqst_t *reqst;
306 srpc_msg_t *reqstmsg;
308 LASSERT (rpc->srpc_bulk != NULL);
309 LASSERT (rpc->srpc_reqstbuf != NULL);
311 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
312 reqst = &reqstmsg->msg_body.brw_reqst;
315 CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
316 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
317 libcfs_id2str(rpc->srpc_peer), status);
321 if (reqst->brw_rw == LST_BRW_READ)
324 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
327 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
328 CERROR ("Bulk data from %s is corrupted!\n",
329 libcfs_id2str(rpc->srpc_peer));
330 reply->brw_status = EBADMSG;
337 brw_server_handle (srpc_server_rpc_t *rpc)
339 srpc_service_t *sv = rpc->srpc_service;
340 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
341 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
342 srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
343 srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
346 LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
348 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
349 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
351 __swab32s(&reqstmsg->msg_type);
352 __swab32s(&reqst->brw_rw);
353 __swab32s(&reqst->brw_len);
354 __swab32s(&reqst->brw_flags);
355 __swab64s(&reqst->brw_rpyid);
356 __swab64s(&reqst->brw_bulkid);
358 LASSERT (reqstmsg->msg_type == srpc_service2request(sv->sv_id));
360 rpc->srpc_done = brw_server_rpc_done;
362 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
363 reqst->brw_len == 0 || (reqst->brw_len & ~CFS_PAGE_MASK) != 0 ||
364 reqst->brw_len / CFS_PAGE_SIZE > LNET_MAX_IOV ||
365 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
366 reqst->brw_flags != LST_BRW_CHECK_FULL &&
367 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
368 reply->brw_status = EINVAL;
372 reply->brw_status = 0;
373 rc = sfw_alloc_pages(rpc, reqst->brw_len / CFS_PAGE_SIZE,
374 reqst->brw_rw == LST_BRW_WRITE);
375 if (rc != 0) return rc;
377 if (reqst->brw_rw == LST_BRW_READ)
378 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
380 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
385 sfw_test_client_ops_t brw_test_client =
387 .tso_init = brw_client_init,
388 .tso_fini = brw_client_fini,
389 .tso_prep_rpc = brw_client_prep_rpc,
390 .tso_done_rpc = brw_client_done_rpc,
393 srpc_service_t brw_test_service =
395 .sv_name = "brw test",
396 .sv_handler = brw_server_handle,
397 .sv_bulk_ready = brw_bulk_ready,
398 .sv_id = SRPC_SERVICE_BRW,