projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d7e09d03 PT |
1 | /* |
| 2 | * GPL HEADER START | |
| 3 | * | |
| 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 only, | |
| 8 | * as published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but | |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * General Public License version 2 for more details (a copy is included | |
| 14 | * in the LICENSE file that accompanied this code). | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * version 2 along with this program; If not, see | |
| 18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
| 19 | * | |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 22 | * have any questions. | |
| 23 | * | |
| 24 | * GPL HEADER END | |
| 25 | */ | |
| 26 | /* | |
| 27 | * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 28 | * Use is subject to license terms. | |
| 1dc563a6 AD |
29 | * |
| 30 | * Copyright (c) 2014, 2015, Intel Corporation. | |
| d7e09d03 PT |
31 | */ |
| 32 | /* | |
| 33 | * This file is part of Lustre, http://www.lustre.org/ | |
| 34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
| 35 | */ | |
| 36 | ||
| 37 | #define DEBUG_SUBSYSTEM S_RPC | |
| 38 | ||
| e27db149 GKH |
39 | #include "../include/obd_support.h" |
| 40 | #include "../include/obd_class.h" | |
| 41 | #include "../include/lustre_lib.h" | |
| 42 | #include "../include/lustre_ha.h" | |
| 43 | #include "../include/lustre_import.h" | |
| d7e09d03 PT |
44 | |
| 45 | #include "ptlrpc_internal.h" | |
| 46 | ||
| d7e09d03 PT |
47 | void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc, |
| 48 | int mdidx) | |
| 49 | { | |
| 50 | CLASSERT(PTLRPC_MAX_BRW_PAGES < LI_POISON); | |
| 51 | ||
| 52 | LASSERT(mdidx < desc->bd_md_max_brw); | |
| 53 | LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES); | |
| 54 | LASSERT(!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV | | |
| 55 | LNET_MD_PHYS))); | |
| 56 | ||
| 57 | md->options |= LNET_MD_KIOV; | |
| 58 | md->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV); | |
| 59 | md->length = min_t(unsigned int, LNET_MAX_IOV, md->length); | |
| 60 | if (desc->bd_enc_iov) | |
| 61 | md->start = &desc->bd_enc_iov[mdidx * LNET_MAX_IOV]; | |
| 62 | else | |
| 63 | md->start = &desc->bd_iov[mdidx * LNET_MAX_IOV]; | |
| 64 | } | |
| 65 | ||
| 66 | void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page, | |
| 67 | int pageoffset, int len) | |
| 68 | { | |
| 69 | lnet_kiov_t *kiov = &desc->bd_iov[desc->bd_iov_count]; | |
| 70 | ||
| 71 | kiov->kiov_page = page; | |
| 72 | kiov->kiov_offset = pageoffset; | |
| 73 | kiov->kiov_len = len; | |
| 74 | ||
| 75 | desc->bd_iov_count++; | |
| 76 | } |