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// SPDX-License-Identifier: GPL-2.0
/*
* 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.gnu.org/licenses/gpl-2.0.html
*
* 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 <obd_support.h>
#include <obd_class.h>
#include <lustre_lib.h>
#include <lustre_ha.h>
#include <lustre_import.h>
#include "ptlrpc_internal.h"
void ptlrpc_fill_bulk_md(struct lnet_md *md, struct ptlrpc_bulk_desc *desc,
int mdidx)
{
int offset = mdidx * LNET_MAX_IOV;
BUILD_BUG_ON(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->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV);
md->length = min_t(unsigned int, LNET_MAX_IOV, md->length);
if (ptlrpc_is_bulk_desc_kiov(desc->bd_type)) {
md->options |= LNET_MD_KIOV;
if (GET_ENC_KIOV(desc))
md->start = &BD_GET_ENC_KIOV(desc, offset);
else
md->start = &BD_GET_KIOV(desc, offset);
} else {
md->options |= LNET_MD_IOVEC;
if (GET_ENC_KVEC(desc))
md->start = &BD_GET_ENC_KVEC(desc, offset);
else
md->start = &BD_GET_KVEC(desc, offset);
}
}
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