| /* |
| * GPL HEADER START |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 only, |
| * as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License version 2 for more details (a copy is included |
| * in the LICENSE file that accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License |
| * version 2 along with this program; If not, see |
| * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| * GPL HEADER END |
| */ |
| /* |
| * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| * |
| * Copyright (c) 2014, 2015, Intel Corporation. |
| */ |
| /* |
| * This file is part of Lustre, http://www.lustre.org/ |
| * Lustre is a trademark of Sun Microsystems, Inc. |
| */ |
| |
| #define DEBUG_SUBSYSTEM S_RPC |
| |
| #include "../include/obd_support.h" |
| #include "../include/obd_class.h" |
| #include "../include/lustre_lib.h" |
| #include "../include/lustre_ha.h" |
| #include "../include/lustre_import.h" |
| |
| #include "ptlrpc_internal.h" |
| |
| void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc, |
| int mdidx) |
| { |
| CLASSERT(PTLRPC_MAX_BRW_PAGES < LI_POISON); |
| |
| LASSERT(mdidx < desc->bd_md_max_brw); |
| LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES); |
| LASSERT(!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV | |
| LNET_MD_PHYS))); |
| |
| md->options |= LNET_MD_KIOV; |
| md->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV); |
| md->length = min_t(unsigned int, LNET_MAX_IOV, md->length); |
| if (desc->bd_enc_iov) |
| md->start = &desc->bd_enc_iov[mdidx * LNET_MAX_IOV]; |
| else |
| md->start = &desc->bd_iov[mdidx * LNET_MAX_IOV]; |
| } |
| |
| void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page, |
| int pageoffset, int len) |
| { |
| lnet_kiov_t *kiov = &desc->bd_iov[desc->bd_iov_count]; |
| |
| kiov->kiov_page = page; |
| kiov->kiov_offset = pageoffset; |
| kiov->kiov_len = len; |
| |
| desc->bd_iov_count++; |
| } |