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91e2eb5684
The TIPC_MEDIA_ADDR_SIZE and TIPC_MEDIA_ADDR_OFFSET names are misleading, as they actually define the size and offset of the whole media info field and not the address part. This patch does not have any functional changes. Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
102 lines
3.6 KiB
C
102 lines
3.6 KiB
C
/*
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* net/tipc/ib_media.c: Infiniband bearer support for TIPC
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*
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* Copyright (c) 2013 Patrick McHardy <kaber@trash.net>
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*
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* Based on eth_media.c, which carries the following copyright notice:
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*
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* Copyright (c) 2001-2007, Ericsson AB
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* Copyright (c) 2005-2008, 2011, Wind River Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/if_infiniband.h>
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#include "core.h"
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#include "bearer.h"
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/* convert InfiniBand address (media address format) media address to string */
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static int tipc_ib_addr2str(struct tipc_media_addr *a, char *str_buf,
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int str_size)
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{
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if (str_size < 60) /* 60 = 19 * strlen("xx:") + strlen("xx\0") */
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return 1;
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sprintf(str_buf, "%20phC", a->value);
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return 0;
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}
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/* Convert from media address format to discovery message addr format */
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static int tipc_ib_addr2msg(char *msg, struct tipc_media_addr *addr)
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{
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memset(msg, 0, TIPC_MEDIA_INFO_SIZE);
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memcpy(msg, addr->value, INFINIBAND_ALEN);
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return 0;
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}
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/* Convert raw InfiniBand address format to media addr format */
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static int tipc_ib_raw2addr(struct tipc_bearer *b,
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struct tipc_media_addr *addr,
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char *msg)
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{
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memset(addr, 0, sizeof(*addr));
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memcpy(addr->value, msg, INFINIBAND_ALEN);
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addr->media_id = TIPC_MEDIA_TYPE_IB;
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addr->broadcast = !memcmp(msg, b->bcast_addr.value,
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INFINIBAND_ALEN);
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return 0;
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}
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/* Convert discovery msg addr format to InfiniBand media addr format */
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static int tipc_ib_msg2addr(struct tipc_bearer *b,
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struct tipc_media_addr *addr,
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char *msg)
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{
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return tipc_ib_raw2addr(b, addr, msg);
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}
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/* InfiniBand media registration info */
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struct tipc_media ib_media_info = {
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.send_msg = tipc_l2_send_msg,
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.enable_media = tipc_enable_l2_media,
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.disable_media = tipc_disable_l2_media,
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.addr2str = tipc_ib_addr2str,
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.addr2msg = tipc_ib_addr2msg,
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.msg2addr = tipc_ib_msg2addr,
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.raw2addr = tipc_ib_raw2addr,
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.priority = TIPC_DEF_LINK_PRI,
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.tolerance = TIPC_DEF_LINK_TOL,
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.window = TIPC_DEF_LINK_WIN,
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.type_id = TIPC_MEDIA_TYPE_IB,
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.hwaddr_len = INFINIBAND_ALEN,
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.name = "ib"
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};
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