mlx5tool.c revision 347841
1/*- 2 * Copyright (c) 2018, Mellanox Technologies, Ltd. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> 27__FBSDID("$FreeBSD: stable/11/usr.sbin/mlx5tool/mlx5tool.c 347841 2019-05-16 17:50:52Z hselasky $"); 28 29#include <sys/param.h> 30#include <sys/ioctl.h> 31#include <sys/mman.h> 32#include <sys/stat.h> 33#include <dev/mlx5/mlx5io.h> 34#include <ctype.h> 35#include <err.h> 36#include <errno.h> 37#include <fcntl.h> 38#include <paths.h> 39#include <stdio.h> 40#include <stdlib.h> 41#include <string.h> 42#include <unistd.h> 43 44/* stolen from pciconf.c: parsesel() */ 45static int 46parse_pci_addr(const char *addrstr, struct mlx5_tool_addr *addr) 47{ 48 char *eppos; 49 unsigned long selarr[4]; 50 int i; 51 52 if (addrstr == NULL) { 53 warnx("no pci address specified"); 54 return (1); 55 } 56 if (strncmp(addrstr, "pci", 3) == 0) { 57 addrstr += 3; 58 i = 0; 59 while (isdigit(*addrstr) && i < 4) { 60 selarr[i++] = strtoul(addrstr, &eppos, 10); 61 addrstr = eppos; 62 if (*addrstr == ':') 63 addrstr++; 64 } 65 if (i > 0 && *addrstr == '\0') { 66 addr->func = (i > 2) ? selarr[--i] : 0; 67 addr->slot = (i > 0) ? selarr[--i] : 0; 68 addr->bus = (i > 0) ? selarr[--i] : 0; 69 addr->domain = (i > 0) ? selarr[--i] : 0; 70 return (0); 71 } 72 } 73 warnx("invalid pci address %s", addrstr); 74 return (1); 75} 76 77static int 78mlx5tool_save_dump(int ctldev, const struct mlx5_tool_addr *addr, 79 const char *dumpname) 80{ 81 struct mlx5_fwdump_get fdg; 82 struct mlx5_fwdump_reg *rege; 83 FILE *dump; 84 size_t cnt; 85 int error, res; 86 87 if (dumpname == NULL) 88 dump = stdout; 89 else 90 dump = fopen(dumpname, "w"); 91 if (dump == NULL) { 92 warn("open %s", dumpname); 93 return (1); 94 } 95 res = 1; 96 memset(&fdg, 0, sizeof(fdg)); 97 fdg.devaddr = *addr; 98 error = ioctl(ctldev, MLX5_FWDUMP_GET, &fdg); 99 if (error != 0) { 100 warn("MLX5_FWDUMP_GET dumpsize"); 101 goto out; 102 } 103 rege = calloc(fdg.reg_filled, sizeof(*rege)); 104 if (rege == NULL) { 105 warn("alloc rege"); 106 goto out; 107 } 108 fdg.buf = rege; 109 fdg.reg_cnt = fdg.reg_filled; 110 error = ioctl(ctldev, MLX5_FWDUMP_GET, &fdg); 111 if (error != 0) { 112 if (errno == ENOENT) 113 warnx("no dump recorded"); 114 else 115 warn("MLX5_FWDUMP_GET dump fetch"); 116 goto out; 117 } 118 for (cnt = 0; cnt < fdg.reg_cnt; cnt++, rege++) 119 fprintf(dump, "0x%08x\t0x%08x\n", rege->addr, rege->val); 120 res = 0; 121out: 122 if (dump != stdout) 123 fclose(dump); 124 return (res); 125} 126 127static int 128mlx5tool_dump_reset(int ctldev, const struct mlx5_tool_addr *addr) 129{ 130 131 if (ioctl(ctldev, MLX5_FWDUMP_RESET, addr) == -1) { 132 warn("MLX5_FWDUMP_RESET"); 133 return (1); 134 } 135 return (0); 136} 137 138static int 139mlx5tool_dump_force(int ctldev, const struct mlx5_tool_addr *addr) 140{ 141 142 if (ioctl(ctldev, MLX5_FWDUMP_FORCE, addr) == -1) { 143 warn("MLX5_FWDUMP_FORCE"); 144 return (1); 145 } 146 return (0); 147} 148 149static int 150mlx5tool_fw_update(int ctldev, const struct mlx5_tool_addr *addr, 151 const char *img_fw_path) 152{ 153 struct stat st; 154 struct mlx5_fw_update fwup; 155 int error, fd, res; 156 157 res = 0; 158 fd = open(img_fw_path, O_RDONLY); 159 if (fd == -1) { 160 warn("Unable to open %s", img_fw_path); 161 res = 1; 162 goto close_fd; 163 } 164 error = fstat(fd, &st); 165 if (error != 0) { 166 warn("Unable to stat %s", img_fw_path); 167 res = 1; 168 goto close_fd; 169 } 170 memset(&fwup, 0, sizeof(fwup)); 171 memcpy(&fwup.devaddr, addr, sizeof(fwup.devaddr)); 172 fwup.img_fw_data = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, 173 fd, 0); 174 if (fwup.img_fw_data == MAP_FAILED) { 175 warn("Unable to mmap %s", img_fw_path); 176 res = 1; 177 goto close_fd; 178 } 179 fwup.img_fw_data_len = st.st_size; 180 181 error = ioctl(ctldev, MLX5_FW_UPDATE, &fwup); 182 if (error == -1) { 183 warn("MLX5_FW_UPDATE"); 184 } 185 186 munmap(fwup.img_fw_data, st.st_size); 187close_fd: 188 close(fd); 189 return (res); 190} 191 192static void 193usage(void) 194{ 195 196 fprintf(stderr, 197 "Usage: mlx5tool -d pci<d:b:s:f> [-w -o dump.file | -r |" 198 " -e | -f fw.mfa2]\n"); 199 fprintf(stderr, "\t-w - write firmware dump to the specified file\n"); 200 fprintf(stderr, "\t-r - reset dump\n"); 201 fprintf(stderr, "\t-e - force dump\n"); 202 fprintf(stderr, "\t-f fw.img - flash firmware from fw.img\n"); 203 exit(1); 204} 205 206enum mlx5_action { 207 ACTION_DUMP_GET, 208 ACTION_DUMP_RESET, 209 ACTION_DUMP_FORCE, 210 ACTION_FW_UPDATE, 211 ACTION_NONE, 212}; 213 214int 215main(int argc, char *argv[]) 216{ 217 struct mlx5_tool_addr addr; 218 char *dumpname; 219 char *addrstr; 220 char *img_fw_path; 221 int c, ctldev, res; 222 enum mlx5_action act; 223 224 act = ACTION_NONE; 225 addrstr = NULL; 226 dumpname = NULL; 227 img_fw_path = NULL; 228 while ((c = getopt(argc, argv, "d:ef:ho:rw")) != -1) { 229 switch (c) { 230 case 'd': 231 addrstr = optarg; 232 break; 233 case 'w': 234 act = ACTION_DUMP_GET; 235 break; 236 case 'e': 237 act = ACTION_DUMP_FORCE; 238 break; 239 case 'o': 240 dumpname = optarg; 241 break; 242 case 'r': 243 act = ACTION_DUMP_RESET; 244 break; 245 case 'f': 246 act = ACTION_FW_UPDATE; 247 img_fw_path = optarg; 248 break; 249 case 'h': 250 default: 251 usage(); 252 } 253 } 254 if (act == ACTION_NONE || (dumpname != NULL && 255 act != ACTION_DUMP_GET) || (img_fw_path != NULL && 256 act != ACTION_FW_UPDATE)) 257 usage(); 258 if (parse_pci_addr(addrstr, &addr) != 0) 259 exit(1); 260 261 ctldev = open(MLX5_DEV_PATH, O_RDWR); 262 if (ctldev == -1) 263 err(1, "open "MLX5_DEV_PATH); 264 switch (act) { 265 case ACTION_DUMP_GET: 266 res = mlx5tool_save_dump(ctldev, &addr, dumpname); 267 break; 268 case ACTION_DUMP_RESET: 269 res = mlx5tool_dump_reset(ctldev, &addr); 270 break; 271 case ACTION_DUMP_FORCE: 272 res = mlx5tool_dump_force(ctldev, &addr); 273 break; 274 case ACTION_FW_UPDATE: 275 res = mlx5tool_fw_update(ctldev, &addr, img_fw_path); 276 break; 277 default: 278 res = 0; 279 break; 280 } 281 close(ctldev); 282 exit(res); 283} 284