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 45 /* convert InfiniBand address to string */ 46 static int tipc_ib_addr2str(struct tipc_media_addr *a, char *str_buf, 47 int str_size) 48 { 49 if (str_size < 60) /* 60 = 19 * strlen("xx:") + strlen("xx\0") */ 50 return 1; 51 52 sprintf(str_buf, "%20phC", a->value); 53 54 return 0; 55 } 56 57 /* convert InfiniBand address format to message header format */ 58 static int tipc_ib_addr2msg(struct tipc_media_addr *a, char *msg_area) 59 { 60 memset(msg_area, 0, TIPC_MEDIA_ADDR_SIZE); 61 msg_area[TIPC_MEDIA_TYPE_OFFSET] = TIPC_MEDIA_TYPE_IB; 62 memcpy(msg_area, a->value, INFINIBAND_ALEN); 63 return 0; 64 } 65 66 /* convert message header address format to InfiniBand format */ 67 static int tipc_ib_msg2addr(const struct tipc_bearer *tb_ptr, 68 struct tipc_media_addr *a, char *msg_area) 69 { 70 tipc_l2_media_addr_set(tb_ptr, a, msg_area); 71 return 0; 72 } 73 74 /* InfiniBand media registration info */ 75 struct tipc_media ib_media_info = { 76 .send_msg = tipc_l2_send_msg, 77 .enable_media = tipc_enable_l2_media, 78 .disable_media = tipc_disable_l2_media, 79 .addr2str = tipc_ib_addr2str, 80 .addr2msg = tipc_ib_addr2msg, 81 .msg2addr = tipc_ib_msg2addr, 82 .priority = TIPC_DEF_LINK_PRI, 83 .tolerance = TIPC_DEF_LINK_TOL, 84 .window = TIPC_DEF_LINK_WIN, 85 .type_id = TIPC_MEDIA_TYPE_IB, 86 .hwaddr_len = INFINIBAND_ALEN, 87 .name = "ib" 88 }; 89 90