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23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
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32 * lnet/selftest/brw_test.c
34 * Author: Isaac Huang <isaac@clusterfs.com>
39 static int brw_srv_workitems = SFW_TEST_WI_MAX;
40 module_param(brw_srv_workitems, int, 0644);
41 MODULE_PARM_DESC(brw_srv_workitems, "# BRW server workitems");
43 static int brw_inject_errors;
44 module_param(brw_inject_errors, int, 0644);
45 MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default");
47 #define BRW_POISON 0xbeefbeefbeefbeefULL
48 #define BRW_MAGIC 0xeeb0eeb1eeb2eeb3ULL
49 #define BRW_MSIZE sizeof(u64)
52 brw_client_fini(struct sfw_test_instance *tsi)
54 struct srpc_bulk *bulk;
55 struct sfw_test_unit *tsu;
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(struct sfw_test_instance *tsi)
72 struct sfw_session *sn = tsi->tsi_batch->bat_session;
78 struct srpc_bulk *bulk;
79 struct sfw_test_unit *tsu;
82 LASSERT(tsi->tsi_is_client);
84 if (!(sn->sn_features & LST_FEAT_BULK_LEN)) {
85 struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0;
88 flags = breq->blk_flags;
91 * NB: this is not going to work for variable page size,
92 * but we have to keep it for compatibility
94 len = npg * PAGE_SIZE;
97 struct test_bulk_req_v1 *breq = &tsi->tsi_u.bulk_v1;
100 * I should never get this step if it's unknown feature
101 * because make_session will reject unknown feature
103 LASSERT(!(sn->sn_features & ~LST_FEATS_MASK));
106 flags = breq->blk_flags;
108 off = breq->blk_offset & ~PAGE_MASK;
109 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
115 if (npg > LNET_MAX_IOV || npg <= 0)
118 if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
121 if (flags != LST_BRW_CHECK_NONE &&
122 flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
125 list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
126 bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
127 off, npg, len, opc == LST_BRW_READ);
129 brw_client_fini(tsi);
133 tsu->tsu_private = bulk;
139 static int brw_inject_one_error(void)
141 struct timespec64 ts;
143 if (brw_inject_errors <= 0)
148 if (!((ts.tv_nsec / NSEC_PER_USEC) & 1))
151 return brw_inject_errors--;
155 brw_fill_page(struct page *pg, int off, int len, int pattern, __u64 magic)
157 char *addr = page_address(pg) + off;
161 LASSERT(!(off % BRW_MSIZE) && !(len % BRW_MSIZE));
163 if (pattern == LST_BRW_CHECK_NONE)
166 if (magic == BRW_MAGIC)
167 magic += brw_inject_one_error();
169 if (pattern == LST_BRW_CHECK_SIMPLE) {
170 memcpy(addr, &magic, BRW_MSIZE);
171 if (len > BRW_MSIZE) {
172 addr += PAGE_SIZE - BRW_MSIZE;
173 memcpy(addr, &magic, BRW_MSIZE);
178 if (pattern == LST_BRW_CHECK_FULL) {
179 for (i = 0; i < len; i += BRW_MSIZE)
180 memcpy(addr + i, &magic, BRW_MSIZE);
188 brw_check_page(struct page *pg, int off, int len, int pattern, __u64 magic)
190 char *addr = page_address(pg) + off;
191 __u64 data = 0; /* make compiler happy */
195 LASSERT(!(off % BRW_MSIZE) && !(len % BRW_MSIZE));
197 if (pattern == LST_BRW_CHECK_NONE)
200 if (pattern == LST_BRW_CHECK_SIMPLE) {
201 data = *((__u64 *)addr);
205 if (len > BRW_MSIZE) {
206 addr += PAGE_SIZE - BRW_MSIZE;
207 data = *((__u64 *)addr);
214 if (pattern == LST_BRW_CHECK_FULL) {
215 for (i = 0; i < len; i += BRW_MSIZE) {
216 data = *(u64 *)(addr + i);
226 CERROR("Bad data in page %p: %#llx, %#llx expected\n",
232 brw_fill_bulk(struct srpc_bulk *bk, int pattern, __u64 magic)
237 for (i = 0; i < bk->bk_niov; i++) {
240 pg = bk->bk_iovs[i].bv_page;
241 off = bk->bk_iovs[i].bv_offset;
242 len = bk->bk_iovs[i].bv_len;
243 brw_fill_page(pg, off, len, pattern, magic);
248 brw_check_bulk(struct srpc_bulk *bk, int pattern, __u64 magic)
253 for (i = 0; i < bk->bk_niov; i++) {
256 pg = bk->bk_iovs[i].bv_page;
257 off = bk->bk_iovs[i].bv_offset;
258 len = bk->bk_iovs[i].bv_len;
259 if (brw_check_page(pg, off, len, pattern, magic)) {
260 CERROR("Bulk page %p (%d/%d) is corrupted!\n",
270 brw_client_prep_rpc(struct sfw_test_unit *tsu, struct lnet_process_id dest,
271 struct srpc_client_rpc **rpcpp)
273 struct srpc_bulk *bulk = tsu->tsu_private;
274 struct sfw_test_instance *tsi = tsu->tsu_instance;
275 struct sfw_session *sn = tsi->tsi_batch->bat_session;
276 struct srpc_client_rpc *rpc;
277 struct srpc_brw_reqst *req;
287 if (!(sn->sn_features & LST_FEAT_BULK_LEN)) {
288 struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0;
291 flags = breq->blk_flags;
293 len = npg * PAGE_SIZE;
295 struct test_bulk_req_v1 *breq = &tsi->tsi_u.bulk_v1;
299 * I should never get this step if it's unknown feature
300 * because make_session will reject unknown feature
302 LASSERT(!(sn->sn_features & ~LST_FEATS_MASK));
305 flags = breq->blk_flags;
307 off = breq->blk_offset;
308 npg = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
311 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
315 memcpy(&rpc->crpc_bulk, bulk, offsetof(struct srpc_bulk, bk_iovs[npg]));
316 if (opc == LST_BRW_WRITE)
317 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
319 brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
321 req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
322 req->brw_flags = flags;
331 brw_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc)
333 __u64 magic = BRW_MAGIC;
334 struct sfw_test_instance *tsi = tsu->tsu_instance;
335 struct sfw_session *sn = tsi->tsi_batch->bat_session;
336 struct srpc_msg *msg = &rpc->crpc_replymsg;
337 struct srpc_brw_reply *reply = &msg->msg_body.brw_reply;
338 struct srpc_brw_reqst *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
342 if (rpc->crpc_status) {
343 CERROR("BRW RPC to %s failed with %d\n",
344 libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
345 if (!tsi->tsi_stopping) /* rpc could have been aborted */
346 atomic_inc(&sn->sn_brw_errors);
350 if (msg->msg_magic != SRPC_MSG_MAGIC) {
352 __swab32s(&reply->brw_status);
355 CDEBUG(reply->brw_status ? D_WARNING : D_NET,
356 "BRW RPC to %s finished with brw_status: %d\n",
357 libcfs_id2str(rpc->crpc_dest), reply->brw_status);
359 if (reply->brw_status) {
360 atomic_inc(&sn->sn_brw_errors);
361 rpc->crpc_status = -(int)reply->brw_status;
365 if (reqst->brw_rw == LST_BRW_WRITE)
368 if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic)) {
369 CERROR("Bulk data from %s is corrupted!\n",
370 libcfs_id2str(rpc->crpc_dest));
371 atomic_inc(&sn->sn_brw_errors);
372 rpc->crpc_status = -EBADMSG;
377 brw_server_rpc_done(struct srpc_server_rpc *rpc)
379 struct srpc_bulk *blk = rpc->srpc_bulk;
384 if (rpc->srpc_status)
385 CERROR("Bulk transfer %s %s has failed: %d\n",
386 blk->bk_sink ? "from" : "to",
387 libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
389 CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
390 blk->bk_niov, blk->bk_sink ? "from" : "to",
391 libcfs_id2str(rpc->srpc_peer));
397 brw_bulk_ready(struct srpc_server_rpc *rpc, int status)
399 __u64 magic = BRW_MAGIC;
400 struct srpc_brw_reply *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
401 struct srpc_brw_reqst *reqst;
402 struct srpc_msg *reqstmsg;
404 LASSERT(rpc->srpc_bulk);
405 LASSERT(rpc->srpc_reqstbuf);
407 reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
408 reqst = &reqstmsg->msg_body.brw_reqst;
411 CERROR("BRW bulk %s failed for RPC from %s: %d\n",
412 reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
413 libcfs_id2str(rpc->srpc_peer), status);
417 if (reqst->brw_rw == LST_BRW_READ)
420 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
423 if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic)) {
424 CERROR("Bulk data from %s is corrupted!\n",
425 libcfs_id2str(rpc->srpc_peer));
426 reply->brw_status = EBADMSG;
433 brw_server_handle(struct srpc_server_rpc *rpc)
435 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
436 struct srpc_msg *replymsg = &rpc->srpc_replymsg;
437 struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
438 struct srpc_brw_reply *reply = &replymsg->msg_body.brw_reply;
439 struct srpc_brw_reqst *reqst = &reqstmsg->msg_body.brw_reqst;
443 LASSERT(sv->sv_id == SRPC_SERVICE_BRW);
445 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
446 LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
448 __swab32s(&reqst->brw_rw);
449 __swab32s(&reqst->brw_len);
450 __swab32s(&reqst->brw_flags);
451 __swab64s(&reqst->brw_rpyid);
452 __swab64s(&reqst->brw_bulkid);
454 LASSERT(reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
456 reply->brw_status = 0;
457 rpc->srpc_done = brw_server_rpc_done;
459 if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
460 (reqst->brw_flags != LST_BRW_CHECK_NONE &&
461 reqst->brw_flags != LST_BRW_CHECK_FULL &&
462 reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
463 reply->brw_status = EINVAL;
467 if (reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) {
468 replymsg->msg_ses_feats = LST_FEATS_MASK;
469 reply->brw_status = EPROTO;
473 if (!(reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN)) {
474 /* compat with old version */
475 if (reqst->brw_len & ~PAGE_MASK) {
476 reply->brw_status = EINVAL;
479 npg = reqst->brw_len >> PAGE_SHIFT;
482 npg = (reqst->brw_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
485 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
487 if (!reqst->brw_len || npg > LNET_MAX_IOV) {
488 reply->brw_status = EINVAL;
492 rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
494 reqst->brw_rw == LST_BRW_WRITE);
498 if (reqst->brw_rw == LST_BRW_READ)
499 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
501 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
506 struct sfw_test_client_ops brw_test_client;
508 void brw_init_test_client(void)
510 brw_test_client.tso_init = brw_client_init;
511 brw_test_client.tso_fini = brw_client_fini;
512 brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
513 brw_test_client.tso_done_rpc = brw_client_done_rpc;
516 struct srpc_service brw_test_service;
518 void brw_init_test_service(void)
520 brw_test_service.sv_id = SRPC_SERVICE_BRW;
521 brw_test_service.sv_name = "brw_test";
522 brw_test_service.sv_handler = brw_server_handle;
523 brw_test_service.sv_bulk_ready = brw_bulk_ready;
524 brw_test_service.sv_wi_total = brw_srv_workitems;