mlx5tool.c revision 347870
1244557Sbrooks/*- 2244557Sbrooks * Copyright (c) 2018, Mellanox Technologies, Ltd. All rights reserved. 3244557Sbrooks * 4244557Sbrooks * Redistribution and use in source and binary forms, with or without 5244557Sbrooks * modification, are permitted provided that the following conditions 6244557Sbrooks * are met: 7244557Sbrooks * 1. Redistributions of source code must retain the above copyright 8244557Sbrooks * notice, this list of conditions and the following disclaimer. 9244557Sbrooks * 2. Redistributions in binary form must reproduce the above copyright 10244557Sbrooks * notice, this list of conditions and the following disclaimer in the 11244557Sbrooks * documentation and/or other materials provided with the distribution. 12244557Sbrooks * 13244557Sbrooks * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14244557Sbrooks * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15244557Sbrooks * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16244557Sbrooks * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17244557Sbrooks * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18244557Sbrooks * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19244557Sbrooks * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20244557Sbrooks * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21244557Sbrooks * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22244557Sbrooks * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23244557Sbrooks * SUCH DAMAGE. 24244557Sbrooks */ 25244557Sbrooks 26244557Sbrooks#include <sys/cdefs.h> 27244557Sbrooks__FBSDID("$FreeBSD: stable/11/usr.sbin/mlx5tool/mlx5tool.c 347870 2019-05-16 18:20:47Z hselasky $"); 28244557Sbrooks 29244557Sbrooks#include <sys/param.h> 30244557Sbrooks#include <sys/ioctl.h> 31244557Sbrooks#include <sys/mman.h> 32244557Sbrooks#include <sys/stat.h> 33244557Sbrooks#include <dev/mlx5/mlx5io.h> 34244557Sbrooks#include <ctype.h> 35244557Sbrooks#include <err.h> 36244557Sbrooks#include <errno.h> 37244557Sbrooks#include <fcntl.h> 38244557Sbrooks#include <paths.h> 39244557Sbrooks#include <stdio.h> 40244557Sbrooks#include <stdlib.h> 41244557Sbrooks#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 int 193mlx5tool_fw_reset(int ctldev, const struct mlx5_tool_addr *addr) 194{ 195 196 if (ioctl(ctldev, MLX5_FW_RESET, addr) == -1) { 197 warn("MLX5_FW_RESET"); 198 return (1); 199 } 200 return (0); 201} 202 203static void 204usage(void) 205{ 206 207 fprintf(stderr, 208 "Usage: mlx5tool -d pci<d:b:s:f> [-w -o dump.file | -r |" 209 " -e | -f fw.mfa2 | -z]\n"); 210 fprintf(stderr, "\t-w - write firmware dump to the specified file\n"); 211 fprintf(stderr, "\t-r - reset dump\n"); 212 fprintf(stderr, "\t-e - force dump\n"); 213 fprintf(stderr, "\t-f fw.img - flash firmware from fw.img\n"); 214 fprintf(stderr, "\t-z - initiate firmware reset\n"); 215 exit(1); 216} 217 218enum mlx5_action { 219 ACTION_DUMP_GET, 220 ACTION_DUMP_RESET, 221 ACTION_DUMP_FORCE, 222 ACTION_FW_UPDATE, 223 ACTION_FW_RESET, 224 ACTION_NONE, 225}; 226 227int 228main(int argc, char *argv[]) 229{ 230 struct mlx5_tool_addr addr; 231 char *dumpname; 232 char *addrstr; 233 char *img_fw_path; 234 int c, ctldev, res; 235 enum mlx5_action act; 236 237 act = ACTION_NONE; 238 addrstr = NULL; 239 dumpname = NULL; 240 img_fw_path = NULL; 241 while ((c = getopt(argc, argv, "d:ef:ho:rwz")) != -1) { 242 switch (c) { 243 case 'd': 244 addrstr = optarg; 245 break; 246 case 'w': 247 if (act != ACTION_NONE) 248 usage(); 249 act = ACTION_DUMP_GET; 250 break; 251 case 'e': 252 if (act != ACTION_NONE) 253 usage(); 254 act = ACTION_DUMP_FORCE; 255 break; 256 case 'o': 257 dumpname = optarg; 258 break; 259 case 'r': 260 if (act != ACTION_NONE) 261 usage(); 262 act = ACTION_DUMP_RESET; 263 break; 264 case 'f': 265 if (act != ACTION_NONE) 266 usage(); 267 act = ACTION_FW_UPDATE; 268 img_fw_path = optarg; 269 break; 270 case 'z': 271 if (act != ACTION_NONE) 272 usage(); 273 act = ACTION_FW_RESET; 274 break; 275 case 'h': 276 default: 277 usage(); 278 } 279 } 280 if (act == ACTION_NONE || (dumpname != NULL && 281 act != ACTION_DUMP_GET) || (img_fw_path != NULL && 282 act != ACTION_FW_UPDATE)) 283 usage(); 284 if (parse_pci_addr(addrstr, &addr) != 0) 285 exit(1); 286 287 ctldev = open(MLX5_DEV_PATH, O_RDWR); 288 if (ctldev == -1) 289 err(1, "open "MLX5_DEV_PATH); 290 switch (act) { 291 case ACTION_DUMP_GET: 292 res = mlx5tool_save_dump(ctldev, &addr, dumpname); 293 break; 294 case ACTION_DUMP_RESET: 295 res = mlx5tool_dump_reset(ctldev, &addr); 296 break; 297 case ACTION_DUMP_FORCE: 298 res = mlx5tool_dump_force(ctldev, &addr); 299 break; 300 case ACTION_FW_UPDATE: 301 res = mlx5tool_fw_update(ctldev, &addr, img_fw_path); 302 break; 303 case ACTION_FW_RESET: 304 res = mlx5tool_fw_reset(ctldev, &addr); 305 break; 306 default: 307 res = 0; 308 break; 309 } 310 close(ctldev); 311 exit(res); 312} 313