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a29a194a PM |
1 | /* |
2 | * net/tipc/ib_media.c: Infiniband bearer support for TIPC | |
3 | * | |
4 | * Copyright (c) 2013 Patrick McHardy <kaber@trash.net> | |
5 | * | |
6 | * Based on eth_media.c, which carries the following copyright notice: | |
7 | * | |
8 | * Copyright (c) 2001-2007, Ericsson AB | |
9 | * Copyright (c) 2005-2008, 2011, Wind River Systems | |
10 | * All rights reserved. | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions are met: | |
14 | * | |
15 | * 1. Redistributions of source code must retain the above copyright | |
16 | * notice, this list of conditions and the following disclaimer. | |
17 | * 2. Redistributions in binary form must reproduce the above copyright | |
18 | * notice, this list of conditions and the following disclaimer in the | |
19 | * documentation and/or other materials provided with the distribution. | |
20 | * 3. Neither the names of the copyright holders nor the names of its | |
21 | * contributors may be used to endorse or promote products derived from | |
22 | * this software without specific prior written permission. | |
23 | * | |
24 | * Alternatively, this software may be distributed under the terms of the | |
25 | * GNU General Public License ("GPL") version 2 as published by the Free | |
26 | * Software Foundation. | |
27 | * | |
28 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
29 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
31 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
32 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
33 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
34 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
35 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
36 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
37 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
38 | * POSSIBILITY OF SUCH DAMAGE. | |
39 | */ | |
40 | ||
41 | #include <linux/if_infiniband.h> | |
42 | #include "core.h" | |
43 | #include "bearer.h" | |
44 | ||
38504c28 | 45 | /* convert InfiniBand address (media address format) media address to string */ |
e4d050cb YX |
46 | static int tipc_ib_addr2str(struct tipc_media_addr *a, char *str_buf, |
47 | int str_size) | |
a29a194a PM |
48 | { |
49 | if (str_size < 60) /* 60 = 19 * strlen("xx:") + strlen("xx\0") */ | |
50 | return 1; | |
51 | ||
d77e41e1 | 52 | sprintf(str_buf, "%20phC", a->value); |
a29a194a PM |
53 | |
54 | return 0; | |
55 | } | |
56 | ||
38504c28 JPM |
57 | /* Convert from media address format to discovery message addr format */ |
58 | static int tipc_ib_addr2msg(char *msg, struct tipc_media_addr *addr) | |
a29a194a | 59 | { |
91e2eb56 | 60 | memset(msg, 0, TIPC_MEDIA_INFO_SIZE); |
38504c28 | 61 | memcpy(msg, addr->value, INFINIBAND_ALEN); |
a29a194a PM |
62 | return 0; |
63 | } | |
64 | ||
38504c28 JPM |
65 | /* Convert raw InfiniBand address format to media addr format */ |
66 | static int tipc_ib_raw2addr(struct tipc_bearer *b, | |
67 | struct tipc_media_addr *addr, | |
68 | char *msg) | |
a29a194a | 69 | { |
38504c28 JPM |
70 | memset(addr, 0, sizeof(*addr)); |
71 | memcpy(addr->value, msg, INFINIBAND_ALEN); | |
72 | addr->media_id = TIPC_MEDIA_TYPE_IB; | |
73 | addr->broadcast = !memcmp(msg, b->bcast_addr.value, | |
74 | INFINIBAND_ALEN); | |
a29a194a PM |
75 | return 0; |
76 | } | |
77 | ||
38504c28 JPM |
78 | /* Convert discovery msg addr format to InfiniBand media addr format */ |
79 | static int tipc_ib_msg2addr(struct tipc_bearer *b, | |
80 | struct tipc_media_addr *addr, | |
81 | char *msg) | |
82 | { | |
83 | return tipc_ib_raw2addr(b, addr, msg); | |
84 | } | |
85 | ||
e4d050cb | 86 | /* InfiniBand media registration info */ |
5702dbab | 87 | struct tipc_media ib_media_info = { |
e4d050cb YX |
88 | .send_msg = tipc_l2_send_msg, |
89 | .enable_media = tipc_enable_l2_media, | |
90 | .disable_media = tipc_disable_l2_media, | |
91 | .addr2str = tipc_ib_addr2str, | |
92 | .addr2msg = tipc_ib_addr2msg, | |
93 | .msg2addr = tipc_ib_msg2addr, | |
38504c28 | 94 | .raw2addr = tipc_ib_raw2addr, |
a29a194a PM |
95 | .priority = TIPC_DEF_LINK_PRI, |
96 | .tolerance = TIPC_DEF_LINK_TOL, | |
97 | .window = TIPC_DEF_LINK_WIN, | |
98 | .type_id = TIPC_MEDIA_TYPE_IB, | |
e4d050cb | 99 | .hwaddr_len = INFINIBAND_ALEN, |
a29a194a PM |
100 | .name = "ib" |
101 | }; |