105 lines
3.7 KiB
C
105 lines
3.7 KiB
C
/*
|
|
* net/tipc/ib_media.c: Infiniband bearer support for TIPC
|
|
*
|
|
* Copyright (c) 2013 Patrick McHardy <kaber@trash.net>
|
|
*
|
|
* Based on eth_media.c, which carries the following copyright notice:
|
|
*
|
|
* Copyright (c) 2001-2007, Ericsson AB
|
|
* Copyright (c) 2005-2008, 2011, Wind River Systems
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <linux/if_infiniband.h>
|
|
#include "core.h"
|
|
#include "bearer.h"
|
|
|
|
#define TIPC_MAX_IB_LINK_WIN 500
|
|
|
|
/* convert InfiniBand address (media address format) media address to string */
|
|
static int tipc_ib_addr2str(struct tipc_media_addr *a, char *str_buf,
|
|
int str_size)
|
|
{
|
|
if (str_size < 60) /* 60 = 19 * strlen("xx:") + strlen("xx\0") */
|
|
return 1;
|
|
|
|
sprintf(str_buf, "%20phC", a->value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Convert from media address format to discovery message addr format */
|
|
static int tipc_ib_addr2msg(char *msg, struct tipc_media_addr *addr)
|
|
{
|
|
memset(msg, 0, TIPC_MEDIA_INFO_SIZE);
|
|
memcpy(msg, addr->value, INFINIBAND_ALEN);
|
|
return 0;
|
|
}
|
|
|
|
/* Convert raw InfiniBand address format to media addr format */
|
|
static int tipc_ib_raw2addr(struct tipc_bearer *b,
|
|
struct tipc_media_addr *addr,
|
|
const char *msg)
|
|
{
|
|
memset(addr, 0, sizeof(*addr));
|
|
memcpy(addr->value, msg, INFINIBAND_ALEN);
|
|
addr->media_id = TIPC_MEDIA_TYPE_IB;
|
|
addr->broadcast = !memcmp(msg, b->bcast_addr.value,
|
|
INFINIBAND_ALEN);
|
|
return 0;
|
|
}
|
|
|
|
/* Convert discovery msg addr format to InfiniBand media addr format */
|
|
static int tipc_ib_msg2addr(struct tipc_bearer *b,
|
|
struct tipc_media_addr *addr,
|
|
char *msg)
|
|
{
|
|
return tipc_ib_raw2addr(b, addr, msg);
|
|
}
|
|
|
|
/* InfiniBand media registration info */
|
|
struct tipc_media ib_media_info = {
|
|
.send_msg = tipc_l2_send_msg,
|
|
.enable_media = tipc_enable_l2_media,
|
|
.disable_media = tipc_disable_l2_media,
|
|
.addr2str = tipc_ib_addr2str,
|
|
.addr2msg = tipc_ib_addr2msg,
|
|
.msg2addr = tipc_ib_msg2addr,
|
|
.raw2addr = tipc_ib_raw2addr,
|
|
.priority = TIPC_DEF_LINK_PRI,
|
|
.tolerance = TIPC_DEF_LINK_TOL,
|
|
.min_win = TIPC_DEF_LINK_WIN,
|
|
.max_win = TIPC_MAX_IB_LINK_WIN,
|
|
.type_id = TIPC_MEDIA_TYPE_IB,
|
|
.hwaddr_len = INFINIBAND_ALEN,
|
|
.name = "ib"
|
|
};
|