1 /* 2 * Copyright (c) 2006 Cisco Systems. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #include "pingpong.h" 34 #include <arpa/inet.h> 35 #include <stdlib.h> 36 #include <stdio.h> 37 #include <string.h> 38 39 enum ibv_mtu pp_mtu_to_enum(int mtu) 40 { 41 switch (mtu) { 42 case 256: return IBV_MTU_256; 43 case 512: return IBV_MTU_512; 44 case 1024: return IBV_MTU_1024; 45 case 2048: return IBV_MTU_2048; 46 case 4096: return IBV_MTU_4096; 47 default: return -1; 48 } 49 } 50 51 uint16_t pp_get_local_lid(struct ibv_context *context, int port) 52 { 53 struct ibv_port_attr attr; 54 55 if (ibv_query_port(context, port, &attr)) 56 return 0; 57 58 return attr.lid; 59 } 60 61 int pp_get_port_info(struct ibv_context *context, int port, 62 struct ibv_port_attr *attr) 63 { 64 return ibv_query_port(context, port, attr); 65 } 66 67 void wire_gid_to_gid(const char *wgid, union ibv_gid *gid) 68 { 69 char tmp[9]; 70 uint32_t v32; 71 int i; 72 73 for (tmp[8] = 0, i = 0; i < 4; ++i) { 74 memcpy(tmp, wgid + i * 8, 8); 75 sscanf(tmp, "%x", &v32); 76 *(uint32_t *)(&gid->raw[i * 4]) = ntohl(v32); 77 } 78 } 79 80 void gid_to_wire_gid(const union ibv_gid *gid, char wgid[]) 81 { 82 int i; 83 84 for (i = 0; i < 4; ++i) 85 sprintf(&wgid[i * 8], "%08x", htonl(*(uint32_t *)(gid->raw + i * 4))); 86 } 87