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104 lines
3.7 KiB
104 lines
3.7 KiB
/* |
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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 <[email protected]> |
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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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#define TIPC_MAX_IB_LINK_WIN 500 |
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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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.min_win = TIPC_DEF_LINK_WIN, |
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.max_win = TIPC_MAX_IB_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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