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/*
* Linux 2.6.32 and later Kernel module for VMware MVP PVTCP Server
*
* Copyright (C) 2010-2012 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 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 for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#line 5
/**
* @file
*
* @brief Server (offload) side code.
*/
#include "pvtcp.h"
/**
* @brief Allocates the net buffer.
* @param size buffer size
* @return address of buffer or NULL
*/
void *
PvtcpBufAlloc(unsigned int size)
{
PvtcpOffBuf *buf;
/* coverity[alloc_fn] */
/* coverity[var_assign] */
buf = CommOS_Kmalloc(size + sizeof *buf - sizeof buf->data);
if (buf) {
CommOS_ListInit(&buf->link);
buf->len = (unsigned short)size;
buf->off = 0;
return PvtcpOffBufFromInternal(buf);
}
return NULL;
}
/**
* @brief Deallocates given net buffer.
* @param buf buffer to deallocate
* @sideeffect Frees memory
*/
void
PvtcpBufFree(void *buf)
{
CommOS_Kfree(PvtcpOffInternalFromBuf(buf));
}
/**
* @brief Initializes the Pvtcp socket offload common fields.
* @param pvsk pvtcp socket.
* @param channel Comm channel this socket is associated with.
* @return 0 if successful, -1 otherwise.
*/
int
PvtcpOffSockInit(PvtcpSock *pvsk,
CommChannel channel)
{
int rc = PvtcpSockInit(pvsk, channel);
pvsk->opFlags = 0;
pvsk->flags = 0;
return rc;
}
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