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LU-5710 all: second batch of corrected typos and grammar errors
[fs/lustre-release.git] / lnet / selftest / brw_test.c
index a64d4ca..9f751c7 100644 (file)
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 
 #include "selftest.h"
 
+static int brw_srv_workitems = SFW_TEST_WI_MAX;
+CFS_MODULE_PARM(brw_srv_workitems, "i", int, 0644, "# BRW server workitems");
 
-extern int brw_inject_errors;
+static int brw_inject_errors;
+CFS_MODULE_PARM(brw_inject_errors, "i", int, 0644,
+               "# data errors to inject randomly, zero by default");
 
 static void
 brw_client_fini (sfw_test_instance_t *tsi)
 {
-        srpc_bulk_t     *bulk;
-        sfw_test_unit_t *tsu;
+       srpc_bulk_t     *bulk;
+       sfw_test_unit_t *tsu;
 
-        LASSERT (tsi->tsi_is_client);
+       LASSERT(tsi->tsi_is_client);
 
-        cfs_list_for_each_entry_typed (tsu, &tsi->tsi_units,
-                                       sfw_test_unit_t, tsu_list) {
-                bulk = tsu->tsu_private;
-                if (bulk == NULL) continue;
+       list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
+               bulk = tsu->tsu_private;
+               if (bulk == NULL)
+                       continue;
 
-                srpc_free_bulk(bulk);
-                tsu->tsu_private = NULL;
-        }
+               srpc_free_bulk(bulk);
+               tsu->tsu_private = NULL;
+       }
 }
 
-int
+static int
 brw_client_init (sfw_test_instance_t *tsi)
 {
-        test_bulk_req_t  *breq = &tsi->tsi_u.bulk;
-        int               flags = breq->blk_flags;
-        int               npg = breq->blk_npg;
-        srpc_bulk_t      *bulk;
-        sfw_test_unit_t  *tsu;
-
-        LASSERT (tsi->tsi_is_client);
-
-        if (npg > LNET_MAX_IOV || npg <= 0)
-                return -EINVAL;
-
-        if (breq->blk_opc != LST_BRW_READ && breq->blk_opc != LST_BRW_WRITE)
-                return -EINVAL;
-
-        if (flags != LST_BRW_CHECK_NONE &&
-            flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
-                return -EINVAL;
-
-        cfs_list_for_each_entry_typed (tsu, &tsi->tsi_units,
-                                       sfw_test_unit_t, tsu_list) {
-                bulk = srpc_alloc_bulk(npg, breq->blk_opc == LST_BRW_READ);
-                if (bulk == NULL) {
-                        brw_client_fini(tsi);
-                        return -ENOMEM;
-                }
-
-                tsu->tsu_private = bulk;
-        }
-
-        return 0;
+       sfw_session_t    *sn = tsi->tsi_batch->bat_session;
+       int               flags;
+       int               npg;
+       int               len;
+       int               opc;
+       srpc_bulk_t      *bulk;
+       sfw_test_unit_t  *tsu;
+
+       LASSERT(sn != NULL);
+       LASSERT(tsi->tsi_is_client);
+
+       if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
+               test_bulk_req_t  *breq = &tsi->tsi_u.bulk_v0;
+
+               opc   = breq->blk_opc;
+               flags = breq->blk_flags;
+               npg   = breq->blk_npg;
+               /* NB: this is not going to work for variable page size,
+                * but we have to keep it for compatibility */
+               len   = npg * PAGE_CACHE_SIZE;
+
+       } else {
+               test_bulk_req_v1_t  *breq = &tsi->tsi_u.bulk_v1;
+
+               /* I should never get this step if it's unknown feature
+                * because make_session will reject unknown feature */
+               LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
+
+               opc   = breq->blk_opc;
+               flags = breq->blk_flags;
+               len   = breq->blk_len;
+               npg   = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+       }
+
+       if (npg > LNET_MAX_IOV || npg <= 0)
+               return -EINVAL;
+
+       if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
+               return -EINVAL;
+
+       if (flags != LST_BRW_CHECK_NONE &&
+           flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
+               return -EINVAL;
+
+       list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
+               bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
+                                      npg, len, opc == LST_BRW_READ);
+               if (bulk == NULL) {
+                       brw_client_fini(tsi);
+                       return -ENOMEM;
+               }
+
+               tsu->tsu_private = bulk;
+       }
+
+       return 0;
 }
 
 #define BRW_POISON      0xbeefbeefbeefbeefULL
 #define BRW_MAGIC       0xeeb0eeb1eeb2eeb3ULL
 #define BRW_MSIZE       sizeof(__u64)
 
-int
-brw_inject_one_error (void)
+static int brw_inject_one_error(void)
 {
-        struct timeval tv;
+       struct timeval tv;
 
-        if (brw_inject_errors <= 0) return 0;
+       if (brw_inject_errors <= 0) return 0;
 
-#ifndef __KERNEL__
-        gettimeofday(&tv, NULL);
-#else
-        do_gettimeofday(&tv);
-#endif
+       do_gettimeofday(&tv);
 
-        if ((tv.tv_usec & 1) == 0) return 0;
+       if ((tv.tv_usec & 1) == 0) return 0;
 
-        return brw_inject_errors--;
+       return brw_inject_errors--;
 }
 
-void
-brw_fill_page (cfs_page_t *pg, int pattern, __u64 magic)
+static void
+brw_fill_page(struct page *pg, int pattern, __u64 magic)
 {
-        char *addr = cfs_page_address(pg);
+       char *addr = page_address(pg);
         int   i;
 
         LASSERT (addr != NULL);
@@ -133,13 +158,13 @@ brw_fill_page (cfs_page_t *pg, int pattern, __u64 magic)
 
         if (pattern == LST_BRW_CHECK_SIMPLE) {
                 memcpy(addr, &magic, BRW_MSIZE);
-                addr += CFS_PAGE_SIZE - BRW_MSIZE;
+               addr += PAGE_CACHE_SIZE - BRW_MSIZE;
                 memcpy(addr, &magic, BRW_MSIZE);
                 return;
         }
 
         if (pattern == LST_BRW_CHECK_FULL) {
-                for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++)
+               for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++)
                         memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
                 return;
         }
@@ -148,10 +173,10 @@ brw_fill_page (cfs_page_t *pg, int pattern, __u64 magic)
         return;
 }
 
-int
-brw_check_page (cfs_page_t *pg, int pattern, __u64 magic)
+static int
+brw_check_page(struct page *pg, int pattern, __u64 magic)
 {
-        char  *addr = cfs_page_address(pg);
+       char  *addr = page_address(pg);
         __u64  data = 0; /* make compiler happy */
         int    i;
 
@@ -164,7 +189,7 @@ brw_check_page (cfs_page_t *pg, int pattern, __u64 magic)
                 data = *((__u64 *) addr);
                 if (data != magic) goto bad_data;
 
-                addr += CFS_PAGE_SIZE - BRW_MSIZE;
+               addr += PAGE_CACHE_SIZE - BRW_MSIZE;
                 data = *((__u64 *) addr);
                 if (data != magic) goto bad_data;
 
@@ -172,7 +197,7 @@ brw_check_page (cfs_page_t *pg, int pattern, __u64 magic)
         }
 
         if (pattern == LST_BRW_CHECK_FULL) {
-                for (i = 0; i < CFS_PAGE_SIZE / BRW_MSIZE; i++) {
+               for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
                         data = *(((__u64 *) addr) + i);
                         if (data != magic) goto bad_data;
                 }
@@ -188,36 +213,26 @@ bad_data:
         return 1;
 }
 
-void
-brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
+static void
+brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
 {
         int         i;
-        cfs_page_t *pg;
+       struct page *pg;
 
         for (i = 0; i < bk->bk_niov; i++) {
-#ifdef __KERNEL__
                 pg = bk->bk_iovs[i].kiov_page;
-#else
-                LASSERT (bk->bk_pages != NULL);
-                pg = bk->bk_pages[i];
-#endif
                 brw_fill_page(pg, pattern, magic);
         }
 }
 
-int
-brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
+static int
+brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
 {
         int         i;
-        cfs_page_t *pg;
+       struct page *pg;
 
         for (i = 0; i < bk->bk_niov; i++) {
-#ifdef __KERNEL__
                 pg = bk->bk_iovs[i].kiov_page;
-#else
-                LASSERT (bk->bk_pages != NULL);
-                pg = bk->bk_pages[i];
-#endif
                 if (brw_check_page(pg, pattern, magic) != 0) {
                         CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
                                 pg, i, bk->bk_niov);
@@ -234,106 +249,128 @@ brw_client_prep_rpc (sfw_test_unit_t *tsu,
 {
         srpc_bulk_t         *bulk = tsu->tsu_private;
         sfw_test_instance_t *tsi = tsu->tsu_instance;
-        test_bulk_req_t     *breq = &tsi->tsi_u.bulk;
-        int                  npg = breq->blk_npg;
-        int                  flags = breq->blk_flags;
-        srpc_client_rpc_t   *rpc;
-        srpc_brw_reqst_t    *req;
-        int                  rc;
-
-        LASSERT (bulk != NULL);
-        LASSERT (bulk->bk_niov == npg);
-
-        rc = sfw_create_test_rpc(tsu, dest, npg, npg * CFS_PAGE_SIZE, &rpc);
-        if (rc != 0) return rc;
-
-        memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
-        if (breq->blk_opc == LST_BRW_WRITE)
-                brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
-        else
-                brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
-
-        req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
-        req->brw_flags = flags;
-        req->brw_rw    = breq->blk_opc;
-        req->brw_len   = npg * CFS_PAGE_SIZE;
-
-        *rpcpp = rpc;
-        return 0;
+       sfw_session_t       *sn = tsi->tsi_batch->bat_session;
+       srpc_client_rpc_t   *rpc;
+       srpc_brw_reqst_t    *req;
+       int                  flags;
+       int                  npg;
+       int                  len;
+       int                  opc;
+       int                  rc;
+
+       LASSERT(sn != NULL);
+       LASSERT(bulk != NULL);
+
+       if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
+               test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
+
+               opc   = breq->blk_opc;
+               flags = breq->blk_flags;
+               npg   = breq->blk_npg;
+               len   = npg * PAGE_CACHE_SIZE;
+
+       } else {
+               test_bulk_req_v1_t  *breq = &tsi->tsi_u.bulk_v1;
+
+               /* I should never get this step if it's unknown feature
+                * because make_session will reject unknown feature */
+               LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
+
+               opc   = breq->blk_opc;
+               flags = breq->blk_flags;
+               len   = breq->blk_len;
+               npg   = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+       }
+
+       rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
+       if (rc != 0)
+               return rc;
+
+       memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
+       if (opc == LST_BRW_WRITE)
+               brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
+       else
+               brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
+
+       req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
+       req->brw_flags = flags;
+       req->brw_rw    = opc;
+       req->brw_len   = len;
+
+       *rpcpp = rpc;
+       return 0;
 }
 
 static void
-brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
+brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 {
-        __u64                magic = BRW_MAGIC;
-        sfw_test_instance_t *tsi = tsu->tsu_instance;
-        sfw_session_t       *sn = tsi->tsi_batch->bat_session;
-        srpc_msg_t          *msg = &rpc->crpc_replymsg;
-        srpc_brw_reply_t    *reply = &msg->msg_body.brw_reply;
-        srpc_brw_reqst_t    *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
-
-        LASSERT (sn != NULL);
-
-        if (rpc->crpc_status != 0) {
-                CERROR ("BRW RPC to %s failed with %d\n",
-                        libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
-                if (!tsi->tsi_stopping) /* rpc could have been aborted */
-                        atomic_inc(&sn->sn_brw_errors);
-                goto out;
-        }
-
-        if (msg->msg_magic != SRPC_MSG_MAGIC) {
-                __swab64s(&magic);
-                __swab32s(&reply->brw_status);
-        }
-
-        CDEBUG (reply->brw_status ? D_WARNING : D_NET,
-                "BRW RPC to %s finished with brw_status: %d\n",
-                libcfs_id2str(rpc->crpc_dest), reply->brw_status);
-
-        if (reply->brw_status != 0) {
-                atomic_inc(&sn->sn_brw_errors);
-                rpc->crpc_status = -(int)reply->brw_status;
-                goto out;
-        }
-
-        if (reqst->brw_rw == LST_BRW_WRITE) goto out;
-
-        if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
-                CERROR ("Bulk data from %s is corrupted!\n",
-                        libcfs_id2str(rpc->crpc_dest));
-                atomic_inc(&sn->sn_brw_errors);
-                rpc->crpc_status = -EBADMSG;
-        }
-
-out:
-#ifndef __KERNEL__
-        rpc->crpc_bulk.bk_pages = NULL;
-#endif
-        return;
+       __u64                magic = BRW_MAGIC;
+       sfw_test_instance_t *tsi = tsu->tsu_instance;
+       sfw_session_t       *sn = tsi->tsi_batch->bat_session;
+       srpc_msg_t          *msg = &rpc->crpc_replymsg;
+       srpc_brw_reply_t    *reply = &msg->msg_body.brw_reply;
+       srpc_brw_reqst_t    *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
+
+       LASSERT(sn != NULL);
+
+       if (rpc->crpc_status != 0) {
+               CERROR("BRW RPC to %s failed with %d\n",
+                      libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
+               if (!tsi->tsi_stopping) /* rpc could have been aborted */
+                       atomic_inc(&sn->sn_brw_errors);
+               return;
+       }
+
+       if (msg->msg_magic != SRPC_MSG_MAGIC) {
+               __swab64s(&magic);
+               __swab32s(&reply->brw_status);
+       }
+
+       CDEBUG(reply->brw_status ? D_WARNING : D_NET,
+              "BRW RPC to %s finished with brw_status: %d\n",
+              libcfs_id2str(rpc->crpc_dest), reply->brw_status);
+
+       if (reply->brw_status != 0) {
+               atomic_inc(&sn->sn_brw_errors);
+               rpc->crpc_status = -(int)reply->brw_status;
+               return;
+       }
+
+       if (reqst->brw_rw == LST_BRW_WRITE)
+               return;
+
+       if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
+               CERROR("Bulk data from %s is corrupted!\n",
+                      libcfs_id2str(rpc->crpc_dest));
+               atomic_inc(&sn->sn_brw_errors);
+               rpc->crpc_status = -EBADMSG;
+       }
+
+       return;
 }
 
-void
-brw_server_rpc_done (srpc_server_rpc_t *rpc)
+static void
+brw_server_rpc_done(srpc_server_rpc_t *rpc)
 {
-        srpc_bulk_t *blk = rpc->srpc_bulk;
+       srpc_bulk_t *blk = rpc->srpc_bulk;
 
-        if (blk == NULL) return;
+       if (blk == NULL)
+               return;
 
-        if (rpc->srpc_status != 0)
-                CERROR ("Bulk transfer %s %s has failed: %d\n",
-                        blk->bk_sink ? "from" : "to",
-                        libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
-        else
-                CDEBUG (D_NET, "Transfered %d pages bulk data %s %s\n",
-                        blk->bk_niov, blk->bk_sink ? "from" : "to",
-                        libcfs_id2str(rpc->srpc_peer));
+       if (rpc->srpc_status != 0)
+               CERROR("Bulk transfer %s %s has failed: %d\n",
+                      blk->bk_sink ? "from" : "to",
+                      libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
+       else
+               CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
+                      blk->bk_niov, blk->bk_sink ? "from" : "to",
+                      libcfs_id2str(rpc->srpc_peer));
 
-        sfw_free_pages(rpc);
+       sfw_free_pages(rpc);
 }
 
-int
-brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
+static int
+brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
 {
         __u64             magic = BRW_MAGIC;
         srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
@@ -368,14 +405,15 @@ brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
         return 0;
 }
 
-int
-brw_server_handle (srpc_server_rpc_t *rpc)
+static int
+brw_server_handle(struct srpc_server_rpc *rpc)
 {
-        srpc_service_t   *sv = rpc->srpc_service;
+       struct srpc_service     *sv = rpc->srpc_scd->scd_svc;
         srpc_msg_t       *replymsg = &rpc->srpc_replymsg;
         srpc_msg_t       *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
         srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
         srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
+       int               npg;
         int               rc;
 
         LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
@@ -383,7 +421,6 @@ brw_server_handle (srpc_server_rpc_t *rpc)
         if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
                 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 
-                __swab32s(&reqstmsg->msg_type);
                 __swab32s(&reqst->brw_rw);
                 __swab32s(&reqst->brw_len);
                 __swab32s(&reqst->brw_flags);
@@ -392,11 +429,10 @@ brw_server_handle (srpc_server_rpc_t *rpc)
         }
         LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
 
+       reply->brw_status = 0;
         rpc->srpc_done = brw_server_rpc_done;
 
         if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
-            reqst->brw_len == 0 || (reqst->brw_len & ~CFS_PAGE_MASK) != 0 ||
-            reqst->brw_len / CFS_PAGE_SIZE > LNET_MAX_IOV ||
             (reqst->brw_flags != LST_BRW_CHECK_NONE &&
              reqst->brw_flags != LST_BRW_CHECK_FULL &&
              reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
@@ -404,10 +440,36 @@ brw_server_handle (srpc_server_rpc_t *rpc)
                 return 0;
         }
 
-        reply->brw_status = 0;
-        rc = sfw_alloc_pages(rpc, reqst->brw_len / CFS_PAGE_SIZE,
-                             reqst->brw_rw == LST_BRW_WRITE);
-        if (rc != 0) return rc;
+       if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
+               replymsg->msg_ses_feats = LST_FEATS_MASK;
+               reply->brw_status = EPROTO;
+               return 0;
+       }
+
+       if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
+               /* compat with old version */
+               if ((reqst->brw_len & ~CFS_PAGE_MASK) != 0) {
+                       reply->brw_status = EINVAL;
+                       return 0;
+               }
+               npg = reqst->brw_len >> PAGE_CACHE_SHIFT;
+
+       } else {
+               npg = (reqst->brw_len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+       }
+
+       replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
+
+       if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
+               reply->brw_status = EINVAL;
+               return 0;
+       }
+
+       rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
+                            reqst->brw_len,
+                            reqst->brw_rw == LST_BRW_WRITE);
+       if (rc != 0)
+               return rc;
 
         if (reqst->brw_rw == LST_BRW_READ)
                 brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
@@ -429,8 +491,10 @@ void brw_init_test_client(void)
 srpc_service_t brw_test_service;
 void brw_init_test_service(void)
 {
+
         brw_test_service.sv_id         = SRPC_SERVICE_BRW;
         brw_test_service.sv_name       = "brw_test";
         brw_test_service.sv_handler    = brw_server_handle;
         brw_test_service.sv_bulk_ready = brw_bulk_ready;
+       brw_test_service.sv_wi_total   = brw_srv_workitems;
 }