Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Loopback test application |
| 3 | * |
| 4 | * Copyright 2015 Google Inc. |
| 5 | * Copyright 2015 Linaro Ltd. |
| 6 | * |
| 7 | * Provided under the three clause BSD license found in the LICENSE file. |
| 8 | */ |
| 9 | #include <errno.h> |
| 10 | #include <fcntl.h> |
| 11 | #include <stdio.h> |
| 12 | #include <string.h> |
| 13 | #include <stdlib.h> |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 14 | #include <stdint.h> |
| 15 | #include <poll.h> |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 16 | #include <sys/types.h> |
| 17 | #include <time.h> |
| 18 | #include <unistd.h> |
| 19 | #include <dirent.h> |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 20 | #include <signal.h> |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 21 | |
Axel Haslam | 3f83056 | 2016-01-29 11:34:19 +0100 | [diff] [blame] | 22 | #define MAX_NUM_DEVICES 10 |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 23 | #define MAX_SYSFS_PREFIX 0x80 |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 24 | #define MAX_SYSFS_PATH 0x200 |
| 25 | #define CSV_MAX_LINE 0x1000 |
| 26 | #define SYSFS_MAX_INT 0x20 |
| 27 | #define MAX_STR_LEN 255 |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 28 | #define DEFAULT_ASYNC_TIMEOUT 200000 |
| 29 | |
| 30 | struct dict { |
| 31 | char *name; |
| 32 | int type; |
| 33 | }; |
| 34 | |
| 35 | static struct dict dict[] = { |
| 36 | {"ping", 2}, |
| 37 | {"transfer", 3}, |
Greg Kroah-Hartman | d5bc960 | 2015-12-15 13:57:22 -0800 | [diff] [blame] | 38 | {"sink", 4}, |
| 39 | {NULL,} /* list termination */ |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 40 | }; |
| 41 | |
| 42 | struct loopback_results { |
| 43 | float latency_avg; |
| 44 | uint32_t latency_max; |
| 45 | uint32_t latency_min; |
| 46 | uint32_t latency_jitter; |
| 47 | |
| 48 | float request_avg; |
| 49 | uint32_t request_max; |
| 50 | uint32_t request_min; |
| 51 | uint32_t request_jitter; |
| 52 | |
| 53 | float throughput_avg; |
| 54 | uint32_t throughput_max; |
| 55 | uint32_t throughput_min; |
| 56 | uint32_t throughput_jitter; |
| 57 | |
| 58 | float apbridge_unipro_latency_avg; |
| 59 | uint32_t apbridge_unipro_latency_max; |
| 60 | uint32_t apbridge_unipro_latency_min; |
| 61 | uint32_t apbridge_unipro_latency_jitter; |
| 62 | |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 63 | float gbphy_firmware_latency_avg; |
| 64 | uint32_t gbphy_firmware_latency_max; |
| 65 | uint32_t gbphy_firmware_latency_min; |
| 66 | uint32_t gbphy_firmware_latency_jitter; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 67 | |
| 68 | uint32_t error; |
| 69 | }; |
| 70 | |
| 71 | struct loopback_device { |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 72 | char name[MAX_STR_LEN]; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 73 | char sysfs_entry[MAX_SYSFS_PATH]; |
| 74 | char debugfs_entry[MAX_SYSFS_PATH]; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 75 | struct loopback_results results; |
| 76 | }; |
| 77 | |
| 78 | struct loopback_test { |
| 79 | int verbose; |
| 80 | int debug; |
| 81 | int raw_data_dump; |
| 82 | int porcelain; |
| 83 | int mask; |
| 84 | int size; |
| 85 | int iteration_max; |
| 86 | int aggregate_output; |
| 87 | int test_id; |
| 88 | int device_count; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 89 | int list_devices; |
| 90 | int use_async; |
| 91 | int async_timeout; |
| 92 | int async_outstanding_operations; |
| 93 | int us_wait; |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 94 | int file_output; |
Ryan Lim | 346bae6 | 2016-07-20 08:14:04 -0700 | [diff] [blame] | 95 | int stop_all; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 96 | int poll_count; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 97 | char test_name[MAX_STR_LEN]; |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 98 | char sysfs_prefix[MAX_SYSFS_PREFIX]; |
| 99 | char debugfs_prefix[MAX_SYSFS_PREFIX]; |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 100 | struct timespec poll_timeout; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 101 | struct loopback_device devices[MAX_NUM_DEVICES]; |
| 102 | struct loopback_results aggregate_results; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 103 | struct pollfd fds[MAX_NUM_DEVICES]; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 104 | }; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 105 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 106 | struct loopback_test t; |
| 107 | |
| 108 | /* Helper macros to calculate the aggregate results for all devices */ |
| 109 | static inline int device_enabled(struct loopback_test *t, int dev_idx); |
| 110 | |
| 111 | #define GET_MAX(field) \ |
| 112 | static int get_##field##_aggregate(struct loopback_test *t) \ |
| 113 | { \ |
| 114 | uint32_t max = 0; \ |
| 115 | int i; \ |
| 116 | for (i = 0; i < t->device_count; i++) { \ |
| 117 | if (!device_enabled(t, i)) \ |
| 118 | continue; \ |
| 119 | if (t->devices[i].results.field > max) \ |
| 120 | max = t->devices[i].results.field; \ |
| 121 | } \ |
| 122 | return max; \ |
| 123 | } \ |
| 124 | |
| 125 | #define GET_MIN(field) \ |
| 126 | static int get_##field##_aggregate(struct loopback_test *t) \ |
| 127 | { \ |
| 128 | uint32_t min = ~0; \ |
| 129 | int i; \ |
| 130 | for (i = 0; i < t->device_count; i++) { \ |
| 131 | if (!device_enabled(t, i)) \ |
| 132 | continue; \ |
| 133 | if (t->devices[i].results.field < min) \ |
| 134 | min = t->devices[i].results.field; \ |
| 135 | } \ |
| 136 | return min; \ |
| 137 | } \ |
| 138 | |
| 139 | #define GET_AVG(field) \ |
| 140 | static int get_##field##_aggregate(struct loopback_test *t) \ |
| 141 | { \ |
| 142 | uint32_t val = 0; \ |
| 143 | uint32_t count = 0; \ |
| 144 | int i; \ |
| 145 | for (i = 0; i < t->device_count; i++) { \ |
| 146 | if (!device_enabled(t, i)) \ |
| 147 | continue; \ |
| 148 | count++; \ |
| 149 | val += t->devices[i].results.field; \ |
| 150 | } \ |
| 151 | if (count) \ |
| 152 | val /= count; \ |
| 153 | return val; \ |
| 154 | } \ |
| 155 | |
| 156 | GET_MAX(throughput_max); |
| 157 | GET_MAX(request_max); |
| 158 | GET_MAX(latency_max); |
| 159 | GET_MAX(apbridge_unipro_latency_max); |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 160 | GET_MAX(gbphy_firmware_latency_max); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 161 | GET_MIN(throughput_min); |
| 162 | GET_MIN(request_min); |
| 163 | GET_MIN(latency_min); |
| 164 | GET_MIN(apbridge_unipro_latency_min); |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 165 | GET_MIN(gbphy_firmware_latency_min); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 166 | GET_AVG(throughput_avg); |
| 167 | GET_AVG(request_avg); |
| 168 | GET_AVG(latency_avg); |
| 169 | GET_AVG(apbridge_unipro_latency_avg); |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 170 | GET_AVG(gbphy_firmware_latency_avg); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 171 | |
| 172 | void abort() |
| 173 | { |
| 174 | _exit(1); |
| 175 | } |
| 176 | |
| 177 | void usage(void) |
| 178 | { |
| 179 | fprintf(stderr, "Usage: loopback_test TEST [SIZE] ITERATIONS [SYSPATH] [DBGPATH]\n\n" |
| 180 | " Run TEST for a number of ITERATIONS with operation data SIZE bytes\n" |
| 181 | " TEST may be \'ping\' \'transfer\' or \'sink\'\n" |
| 182 | " SIZE indicates the size of transfer <= greybus max payload bytes\n" |
| 183 | " ITERATIONS indicates the number of times to execute TEST at SIZE bytes\n" |
| 184 | " Note if ITERATIONS is set to zero then this utility will\n" |
| 185 | " initiate an infinite (non terminating) test and exit\n" |
| 186 | " without logging any metrics data\n" |
| 187 | " SYSPATH indicates the sysfs path for the loopback greybus entries e.g.\n" |
| 188 | " /sys/bus/greybus/devices\n" |
| 189 | " DBGPATH indicates the debugfs path for the loopback greybus entries e.g.\n" |
| 190 | " /sys/kernel/debug/gb_loopback/\n" |
| 191 | " Mandatory arguments\n" |
| 192 | " -t must be one of the test names - sink, transfer or ping\n" |
| 193 | " -i iteration count - the number of iterations to run the test over\n" |
| 194 | " Optional arguments\n" |
| 195 | " -S sysfs location - location for greybus 'endo' entires default /sys/bus/greybus/devices/\n" |
| 196 | " -D debugfs location - location for loopback debugfs entries default /sys/kernel/debug/gb_loopback/\n" |
| 197 | " -s size of data packet to send during test - defaults to zero\n" |
| 198 | " -m mask - a bit mask of connections to include example: -m 8 = 4th connection -m 9 = 1st and 4th connection etc\n" |
| 199 | " default is zero which means broadcast to all connections\n" |
| 200 | " -v verbose output\n" |
| 201 | " -d debug output\n" |
| 202 | " -r raw data output - when specified the full list of latency values are included in the output CSV\n" |
| 203 | " -p porcelain - when specified printout is in a user-friendly non-CSV format. This option suppresses writing to CSV file\n" |
| 204 | " -a aggregate - show aggregation of all enabled devices\n" |
| 205 | " -l list found loopback devices and exit\n" |
| 206 | " -x Async - Enable async transfers\n" |
| 207 | " -o Async Timeout - Timeout in uSec for async operations\n" |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 208 | " -O Poll loop time out in seconds(max time a test is expected to last, default: 30sec)\n" |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 209 | " -c Max number of outstanding operations for async operations\n" |
| 210 | " -w Wait in uSec between operations\n" |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 211 | " -z Enable output to a CSV file (incompatible with -p)\n" |
Ryan Lim | 346bae6 | 2016-07-20 08:14:04 -0700 | [diff] [blame] | 212 | " -f When starting new loopback test, stop currently running tests on all devices\n" |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 213 | "Examples:\n" |
| 214 | " Send 10000 transfers with a packet size of 128 bytes to all active connections\n" |
| 215 | " loopback_test -t transfer -s 128 -i 10000 -S /sys/bus/greybus/devices/ -D /sys/kernel/debug/gb_loopback/\n" |
| 216 | " loopback_test -t transfer -s 128 -i 10000 -m 0\n" |
| 217 | " Send 10000 transfers with a packet size of 128 bytes to connection 1 and 4\n" |
| 218 | " loopback_test -t transfer -s 128 -i 10000 -m 9\n" |
| 219 | " loopback_test -t ping -s 0 128 -i -S /sys/bus/greybus/devices/ -D /sys/kernel/debug/gb_loopback/\n" |
| 220 | " loopback_test -t sink -s 2030 -i 32768 -S /sys/bus/greybus/devices/ -D /sys/kernel/debug/gb_loopback/\n"); |
| 221 | abort(); |
| 222 | } |
| 223 | |
| 224 | static inline int device_enabled(struct loopback_test *t, int dev_idx) |
| 225 | { |
| 226 | if (!t->mask || (t->mask & (1 << dev_idx))) |
| 227 | return 1; |
| 228 | |
| 229 | return 0; |
| 230 | } |
| 231 | |
| 232 | static void show_loopback_devices(struct loopback_test *t) |
| 233 | { |
| 234 | int i; |
| 235 | |
| 236 | if (t->device_count == 0) { |
| 237 | printf("No loopback devices.\n"); |
| 238 | return; |
| 239 | } |
| 240 | |
| 241 | for (i = 0; i < t->device_count; i++) |
| 242 | printf("device[%d] = %s\n", i, t->devices[i].name); |
| 243 | |
| 244 | } |
| 245 | |
| 246 | int open_sysfs(const char *sys_pfx, const char *node, int flags) |
| 247 | { |
| 248 | int fd; |
| 249 | char path[MAX_SYSFS_PATH]; |
| 250 | |
| 251 | snprintf(path, sizeof(path), "%s%s", sys_pfx, node); |
| 252 | fd = open(path, flags); |
| 253 | if (fd < 0) { |
| 254 | fprintf(stderr, "unable to open %s\n", path); |
| 255 | abort(); |
| 256 | } |
| 257 | return fd; |
| 258 | } |
| 259 | |
| 260 | int read_sysfs_int_fd(int fd, const char *sys_pfx, const char *node) |
| 261 | { |
| 262 | char buf[SYSFS_MAX_INT]; |
| 263 | |
| 264 | if (read(fd, buf, sizeof(buf)) < 0) { |
| 265 | fprintf(stderr, "unable to read from %s%s %s\n", sys_pfx, node, |
| 266 | strerror(errno)); |
| 267 | close(fd); |
| 268 | abort(); |
| 269 | } |
| 270 | return atoi(buf); |
| 271 | } |
| 272 | |
| 273 | float read_sysfs_float_fd(int fd, const char *sys_pfx, const char *node) |
| 274 | { |
| 275 | char buf[SYSFS_MAX_INT]; |
| 276 | |
| 277 | if (read(fd, buf, sizeof(buf)) < 0) { |
| 278 | |
| 279 | fprintf(stderr, "unable to read from %s%s %s\n", sys_pfx, node, |
| 280 | strerror(errno)); |
| 281 | close(fd); |
| 282 | abort(); |
| 283 | } |
| 284 | return atof(buf); |
| 285 | } |
| 286 | |
| 287 | int read_sysfs_int(const char *sys_pfx, const char *node) |
| 288 | { |
| 289 | int fd, val; |
| 290 | |
| 291 | fd = open_sysfs(sys_pfx, node, O_RDONLY); |
| 292 | val = read_sysfs_int_fd(fd, sys_pfx, node); |
| 293 | close(fd); |
| 294 | return val; |
| 295 | } |
| 296 | |
| 297 | float read_sysfs_float(const char *sys_pfx, const char *node) |
| 298 | { |
| 299 | int fd; |
| 300 | float val; |
| 301 | |
| 302 | fd = open_sysfs(sys_pfx, node, O_RDONLY); |
| 303 | val = read_sysfs_float_fd(fd, sys_pfx, node); |
| 304 | close(fd); |
| 305 | return val; |
| 306 | } |
| 307 | |
| 308 | void write_sysfs_val(const char *sys_pfx, const char *node, int val) |
| 309 | { |
| 310 | int fd, len; |
| 311 | char buf[SYSFS_MAX_INT]; |
| 312 | |
| 313 | fd = open_sysfs(sys_pfx, node, O_RDWR); |
| 314 | len = snprintf(buf, sizeof(buf), "%d", val); |
| 315 | if (write(fd, buf, len) < 0) { |
| 316 | fprintf(stderr, "unable to write to %s%s %s\n", sys_pfx, node, |
| 317 | strerror(errno)); |
| 318 | close(fd); |
| 319 | abort(); |
| 320 | } |
| 321 | close(fd); |
| 322 | } |
| 323 | |
| 324 | static int get_results(struct loopback_test *t) |
| 325 | { |
| 326 | struct loopback_device *d; |
| 327 | struct loopback_results *r; |
| 328 | int i; |
| 329 | |
| 330 | for (i = 0; i < t->device_count; i++) { |
| 331 | if (!device_enabled(t, i)) |
| 332 | continue; |
| 333 | |
| 334 | d = &t->devices[i]; |
| 335 | r = &d->results; |
| 336 | |
| 337 | r->error = read_sysfs_int(d->sysfs_entry, "error"); |
| 338 | r->request_min = read_sysfs_int(d->sysfs_entry, "requests_per_second_min"); |
| 339 | r->request_max = read_sysfs_int(d->sysfs_entry, "requests_per_second_max"); |
| 340 | r->request_avg = read_sysfs_float(d->sysfs_entry, "requests_per_second_avg"); |
| 341 | |
| 342 | r->latency_min = read_sysfs_int(d->sysfs_entry, "latency_min"); |
| 343 | r->latency_max = read_sysfs_int(d->sysfs_entry, "latency_max"); |
| 344 | r->latency_avg = read_sysfs_float(d->sysfs_entry, "latency_avg"); |
| 345 | |
| 346 | r->throughput_min = read_sysfs_int(d->sysfs_entry, "throughput_min"); |
| 347 | r->throughput_max = read_sysfs_int(d->sysfs_entry, "throughput_max"); |
| 348 | r->throughput_avg = read_sysfs_float(d->sysfs_entry, "throughput_avg"); |
| 349 | |
| 350 | r->apbridge_unipro_latency_min = |
| 351 | read_sysfs_int(d->sysfs_entry, "apbridge_unipro_latency_min"); |
| 352 | r->apbridge_unipro_latency_max = |
| 353 | read_sysfs_int(d->sysfs_entry, "apbridge_unipro_latency_max"); |
| 354 | r->apbridge_unipro_latency_avg = |
| 355 | read_sysfs_float(d->sysfs_entry, "apbridge_unipro_latency_avg"); |
| 356 | |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 357 | r->gbphy_firmware_latency_min = |
| 358 | read_sysfs_int(d->sysfs_entry, "gbphy_firmware_latency_min"); |
| 359 | r->gbphy_firmware_latency_max = |
| 360 | read_sysfs_int(d->sysfs_entry, "gbphy_firmware_latency_max"); |
| 361 | r->gbphy_firmware_latency_avg = |
| 362 | read_sysfs_float(d->sysfs_entry, "gbphy_firmware_latency_avg"); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 363 | |
| 364 | r->request_jitter = r->request_max - r->request_min; |
| 365 | r->latency_jitter = r->latency_max - r->latency_min; |
| 366 | r->throughput_jitter = r->throughput_max - r->throughput_min; |
| 367 | r->apbridge_unipro_latency_jitter = |
| 368 | r->apbridge_unipro_latency_max - r->apbridge_unipro_latency_min; |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 369 | r->gbphy_firmware_latency_jitter = |
| 370 | r->gbphy_firmware_latency_max - r->gbphy_firmware_latency_min; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 371 | |
| 372 | } |
| 373 | |
| 374 | /*calculate the aggregate results of all enabled devices */ |
| 375 | if (t->aggregate_output) { |
| 376 | r = &t->aggregate_results; |
| 377 | |
| 378 | r->request_min = get_request_min_aggregate(t); |
| 379 | r->request_max = get_request_max_aggregate(t); |
| 380 | r->request_avg = get_request_avg_aggregate(t); |
| 381 | |
| 382 | r->latency_min = get_latency_min_aggregate(t); |
| 383 | r->latency_max = get_latency_max_aggregate(t); |
| 384 | r->latency_avg = get_latency_avg_aggregate(t); |
| 385 | |
| 386 | r->throughput_min = get_throughput_min_aggregate(t); |
| 387 | r->throughput_max = get_throughput_max_aggregate(t); |
| 388 | r->throughput_avg = get_throughput_avg_aggregate(t); |
| 389 | |
| 390 | r->apbridge_unipro_latency_min = |
| 391 | get_apbridge_unipro_latency_min_aggregate(t); |
| 392 | r->apbridge_unipro_latency_max = |
| 393 | get_apbridge_unipro_latency_max_aggregate(t); |
| 394 | r->apbridge_unipro_latency_avg = |
| 395 | get_apbridge_unipro_latency_avg_aggregate(t); |
| 396 | |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 397 | r->gbphy_firmware_latency_min = |
| 398 | get_gbphy_firmware_latency_min_aggregate(t); |
| 399 | r->gbphy_firmware_latency_max = |
| 400 | get_gbphy_firmware_latency_max_aggregate(t); |
| 401 | r->gbphy_firmware_latency_avg = |
| 402 | get_gbphy_firmware_latency_avg_aggregate(t); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 403 | |
| 404 | r->request_jitter = r->request_max - r->request_min; |
| 405 | r->latency_jitter = r->latency_max - r->latency_min; |
| 406 | r->throughput_jitter = r->throughput_max - r->throughput_min; |
| 407 | r->apbridge_unipro_latency_jitter = |
| 408 | r->apbridge_unipro_latency_max - r->apbridge_unipro_latency_min; |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 409 | r->gbphy_firmware_latency_jitter = |
| 410 | r->gbphy_firmware_latency_max - r->gbphy_firmware_latency_min; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 411 | |
| 412 | } |
| 413 | |
| 414 | return 0; |
| 415 | } |
| 416 | |
| 417 | void log_csv_error(int len, int err) |
| 418 | { |
| 419 | fprintf(stderr, "unable to write %d bytes to csv %s\n", len, |
| 420 | strerror(err)); |
| 421 | } |
| 422 | |
| 423 | int format_output(struct loopback_test *t, |
| 424 | struct loopback_results *r, |
| 425 | const char *dev_name, |
| 426 | char *buf, int buf_len, |
| 427 | struct tm *tm) |
| 428 | { |
| 429 | int len = 0; |
| 430 | |
| 431 | memset(buf, 0x00, buf_len); |
| 432 | len = snprintf(buf, buf_len, "%u-%u-%u %u:%u:%u", |
| 433 | tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, |
| 434 | tm->tm_hour, tm->tm_min, tm->tm_sec); |
| 435 | |
| 436 | if (t->porcelain) { |
| 437 | len += snprintf(&buf[len], buf_len - len, |
| 438 | "\n test:\t\t\t%s\n path:\t\t\t%s\n size:\t\t\t%u\n iterations:\t\t%u\n errors:\t\t%u\n async:\t\t\t%s\n", |
| 439 | t->test_name, |
| 440 | dev_name, |
| 441 | t->size, |
| 442 | t->iteration_max, |
| 443 | r->error, |
| 444 | t->use_async ? "Enabled" : "Disabled"); |
| 445 | |
| 446 | len += snprintf(&buf[len], buf_len - len, |
| 447 | " requests per-sec:\tmin=%u, max=%u, average=%f, jitter=%u\n", |
| 448 | r->request_min, |
| 449 | r->request_max, |
| 450 | r->request_avg, |
| 451 | r->request_jitter); |
| 452 | |
| 453 | len += snprintf(&buf[len], buf_len - len, |
| 454 | " ap-throughput B/s:\tmin=%u max=%u average=%f jitter=%u\n", |
| 455 | r->throughput_min, |
| 456 | r->throughput_max, |
| 457 | r->throughput_avg, |
| 458 | r->throughput_jitter); |
| 459 | len += snprintf(&buf[len], buf_len - len, |
| 460 | " ap-latency usec:\tmin=%u max=%u average=%f jitter=%u\n", |
| 461 | r->latency_min, |
| 462 | r->latency_max, |
| 463 | r->latency_avg, |
| 464 | r->latency_jitter); |
| 465 | len += snprintf(&buf[len], buf_len - len, |
| 466 | " apbridge-latency usec:\tmin=%u max=%u average=%f jitter=%u\n", |
| 467 | r->apbridge_unipro_latency_min, |
| 468 | r->apbridge_unipro_latency_max, |
| 469 | r->apbridge_unipro_latency_avg, |
| 470 | r->apbridge_unipro_latency_jitter); |
| 471 | |
| 472 | len += snprintf(&buf[len], buf_len - len, |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 473 | " gbphy-latency usec:\tmin=%u max=%u average=%f jitter=%u\n", |
| 474 | r->gbphy_firmware_latency_min, |
| 475 | r->gbphy_firmware_latency_max, |
| 476 | r->gbphy_firmware_latency_avg, |
| 477 | r->gbphy_firmware_latency_jitter); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 478 | |
| 479 | } else { |
| 480 | len += snprintf(&buf[len], buf_len- len, ",%s,%s,%u,%u,%u", |
| 481 | t->test_name, dev_name, t->size, t->iteration_max, |
| 482 | r->error); |
| 483 | |
| 484 | len += snprintf(&buf[len], buf_len - len, ",%u,%u,%f,%u", |
| 485 | r->request_min, |
| 486 | r->request_max, |
| 487 | r->request_avg, |
| 488 | r->request_jitter); |
| 489 | |
| 490 | len += snprintf(&buf[len], buf_len - len, ",%u,%u,%f,%u", |
| 491 | r->latency_min, |
| 492 | r->latency_max, |
| 493 | r->latency_avg, |
| 494 | r->latency_jitter); |
| 495 | |
| 496 | len += snprintf(&buf[len], buf_len - len, ",%u,%u,%f,%u", |
| 497 | r->throughput_min, |
| 498 | r->throughput_max, |
| 499 | r->throughput_avg, |
| 500 | r->throughput_jitter); |
| 501 | |
| 502 | len += snprintf(&buf[len], buf_len - len, ",%u,%u,%f,%u", |
| 503 | r->apbridge_unipro_latency_min, |
| 504 | r->apbridge_unipro_latency_max, |
| 505 | r->apbridge_unipro_latency_avg, |
| 506 | r->apbridge_unipro_latency_jitter); |
| 507 | |
| 508 | len += snprintf(&buf[len], buf_len - len, ",%u,%u,%f,%u", |
Axel Haslam | b797c43 | 2016-05-24 16:21:29 +0200 | [diff] [blame] | 509 | r->gbphy_firmware_latency_min, |
| 510 | r->gbphy_firmware_latency_max, |
| 511 | r->gbphy_firmware_latency_avg, |
| 512 | r->gbphy_firmware_latency_jitter); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 513 | } |
| 514 | |
| 515 | printf("\n%s\n", buf); |
| 516 | |
| 517 | return len; |
| 518 | } |
| 519 | |
| 520 | static int log_results(struct loopback_test *t) |
| 521 | { |
| 522 | int fd, i, len, ret; |
| 523 | struct tm tm; |
| 524 | time_t local_time; |
| 525 | mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH; |
| 526 | char file_name[MAX_SYSFS_PATH]; |
| 527 | char data[CSV_MAX_LINE]; |
| 528 | |
| 529 | local_time = time(NULL); |
| 530 | tm = *localtime(&local_time); |
| 531 | |
| 532 | /* |
| 533 | * file name will test_name_size_iteration_max.csv |
| 534 | * every time the same test with the same parameters is run we will then |
| 535 | * append to the same CSV with datestamp - representing each test |
| 536 | * dataset. |
| 537 | */ |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 538 | if (t->file_output && !t->porcelain) { |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 539 | snprintf(file_name, sizeof(file_name), "%s_%d_%d.csv", |
| 540 | t->test_name, t->size, t->iteration_max); |
| 541 | |
| 542 | fd = open(file_name, O_WRONLY | O_CREAT | O_APPEND, mode); |
| 543 | if (fd < 0) { |
| 544 | fprintf(stderr, "unable to open %s for appendation\n", file_name); |
| 545 | abort(); |
| 546 | } |
| 547 | |
| 548 | } |
| 549 | for (i = 0; i < t->device_count; i++) { |
| 550 | if (!device_enabled(t, i)) |
| 551 | continue; |
| 552 | |
| 553 | len = format_output(t, &t->devices[i].results, |
| 554 | t->devices[i].name, |
| 555 | data, sizeof(data), &tm); |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 556 | if (t->file_output && !t->porcelain) { |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 557 | ret = write(fd, data, len); |
| 558 | if (ret == -1) |
| 559 | fprintf(stderr, "unable to write %d bytes to csv.\n", len); |
| 560 | } |
| 561 | |
| 562 | } |
| 563 | |
| 564 | |
| 565 | if (t->aggregate_output) { |
| 566 | len = format_output(t, &t->aggregate_results, "aggregate", |
| 567 | data, sizeof(data), &tm); |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 568 | if (t->file_output && !t->porcelain) { |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 569 | ret = write(fd, data, len); |
| 570 | if (ret == -1) |
| 571 | fprintf(stderr, "unable to write %d bytes to csv.\n", len); |
| 572 | } |
| 573 | } |
| 574 | |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 575 | if (t->file_output && !t->porcelain) |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 576 | close(fd); |
| 577 | |
| 578 | return 0; |
| 579 | } |
| 580 | |
| 581 | int is_loopback_device(const char *path, const char *node) |
| 582 | { |
| 583 | char file[MAX_SYSFS_PATH]; |
| 584 | |
| 585 | snprintf(file, MAX_SYSFS_PATH, "%s%s/iteration_count", path, node); |
| 586 | if (access(file, F_OK) == 0) |
| 587 | return 1; |
| 588 | return 0; |
| 589 | } |
| 590 | |
| 591 | int find_loopback_devices(struct loopback_test *t) |
| 592 | { |
| 593 | struct dirent **namelist; |
| 594 | int i, n, ret; |
| 595 | unsigned int dev_id; |
| 596 | struct loopback_device *d; |
| 597 | |
| 598 | n = scandir(t->sysfs_prefix, &namelist, NULL, alphasort); |
| 599 | if (n < 0) { |
| 600 | perror("scandir"); |
| 601 | ret = -ENODEV; |
| 602 | goto baddir; |
| 603 | } |
| 604 | |
| 605 | /* Don't include '.' and '..' */ |
| 606 | if (n <= 2) { |
| 607 | ret = -ENOMEM; |
| 608 | goto done; |
| 609 | } |
| 610 | |
| 611 | for (i = 0; i < n; i++) { |
| 612 | ret = sscanf(namelist[i]->d_name, "gb_loopback%u", &dev_id); |
| 613 | if (ret != 1) |
| 614 | continue; |
| 615 | |
| 616 | if (!is_loopback_device(t->sysfs_prefix, namelist[i]->d_name)) |
| 617 | continue; |
| 618 | |
| 619 | if (t->device_count == MAX_NUM_DEVICES) { |
| 620 | fprintf(stderr, "max number of devices reached!\n"); |
| 621 | break; |
| 622 | } |
| 623 | |
| 624 | d = &t->devices[t->device_count++]; |
| 625 | snprintf(d->name, MAX_STR_LEN, "gb_loopback%u", dev_id); |
| 626 | |
| 627 | snprintf(d->sysfs_entry, MAX_SYSFS_PATH, "%s%s/", |
| 628 | t->sysfs_prefix, d->name); |
| 629 | |
| 630 | snprintf(d->debugfs_entry, MAX_SYSFS_PATH, "%sraw_latency_%s", |
| 631 | t->debugfs_prefix, d->name); |
| 632 | |
| 633 | if (t->debug) |
| 634 | printf("add %s %s\n", d->sysfs_entry, |
| 635 | d->debugfs_entry); |
| 636 | } |
| 637 | |
| 638 | ret = 0; |
| 639 | done: |
| 640 | for (i = 0; i < n; i++) |
| 641 | free(namelist[n]); |
| 642 | free(namelist); |
| 643 | baddir: |
| 644 | return ret; |
| 645 | } |
| 646 | |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 647 | static int open_poll_files(struct loopback_test *t) |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 648 | { |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 649 | struct loopback_device *dev; |
Johan Hovold | d444ed6 | 2020-03-12 12:01:50 +0100 | [diff] [blame] | 650 | char buf[MAX_SYSFS_PATH + MAX_STR_LEN]; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 651 | char dummy; |
| 652 | int fds_idx = 0; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 653 | int i; |
| 654 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 655 | for (i = 0; i < t->device_count; i++) { |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 656 | dev = &t->devices[i]; |
| 657 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 658 | if (!device_enabled(t, i)) |
| 659 | continue; |
| 660 | |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 661 | snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count"); |
| 662 | t->fds[fds_idx].fd = open(buf, O_RDONLY); |
| 663 | if (t->fds[fds_idx].fd < 0) { |
| 664 | fprintf(stderr, "Error opening poll file!\n"); |
| 665 | goto err; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 666 | } |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 667 | read(t->fds[fds_idx].fd, &dummy, 1); |
| 668 | t->fds[fds_idx].events = POLLERR|POLLPRI; |
| 669 | t->fds[fds_idx].revents = 0; |
| 670 | fds_idx++; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 671 | } |
| 672 | |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 673 | t->poll_count = fds_idx; |
| 674 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 675 | return 0; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 676 | |
| 677 | err: |
| 678 | for (i = 0; i < fds_idx; i++) |
| 679 | close(t->fds[fds_idx].fd); |
| 680 | |
| 681 | return -1; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 682 | } |
| 683 | |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 684 | static int close_poll_files(struct loopback_test *t) |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 685 | { |
| 686 | int i; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 687 | for (i = 0; i < t->poll_count; i++) |
| 688 | close(t->fds[i].fd); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 689 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 690 | return 0; |
| 691 | } |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 692 | static int is_complete(struct loopback_test *t) |
| 693 | { |
Greg Kroah-Hartman | 6bfff1d | 2015-12-15 13:55:05 -0800 | [diff] [blame] | 694 | int iteration_count; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 695 | int i; |
| 696 | |
| 697 | for (i = 0; i < t->device_count; i++) { |
| 698 | if (!device_enabled(t, i)) |
| 699 | continue; |
| 700 | |
| 701 | iteration_count = read_sysfs_int(t->devices[i].sysfs_entry, |
| 702 | "iteration_count"); |
| 703 | |
| 704 | /* at least one device did not finish yet */ |
| 705 | if (iteration_count != t->iteration_max) |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | return 1; |
| 710 | } |
| 711 | |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 712 | static void stop_tests(struct loopback_test *t) |
| 713 | { |
| 714 | int i; |
| 715 | |
| 716 | for (i = 0; i < t->device_count; i++) { |
| 717 | if (!device_enabled(t, i)) |
| 718 | continue; |
| 719 | write_sysfs_val(t->devices[i].sysfs_entry, "type", 0); |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | static void handler(int sig) { /* do nothing */ } |
| 724 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 725 | static int wait_for_complete(struct loopback_test *t) |
| 726 | { |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 727 | int number_of_events = 0; |
| 728 | char dummy; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 729 | int ret; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 730 | int i; |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 731 | struct timespec *ts = NULL; |
| 732 | struct sigaction sa; |
| 733 | sigset_t mask_old, mask; |
| 734 | |
| 735 | sigemptyset(&mask); |
| 736 | sigemptyset(&mask_old); |
| 737 | sigaddset(&mask, SIGINT); |
| 738 | sigprocmask(SIG_BLOCK, &mask, &mask_old); |
| 739 | |
| 740 | sa.sa_handler = handler; |
| 741 | sa.sa_flags = 0; |
| 742 | sigemptyset(&sa.sa_mask); |
| 743 | if (sigaction(SIGINT, &sa, NULL) == -1) { |
| 744 | fprintf(stderr, "sigaction error\n"); |
| 745 | return -1; |
| 746 | } |
| 747 | |
| 748 | if (t->poll_timeout.tv_sec != 0) |
| 749 | ts = &t->poll_timeout; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 750 | |
| 751 | while (1) { |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 752 | |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 753 | ret = ppoll(t->fds, t->poll_count, ts, &mask_old); |
| 754 | if (ret <= 0) { |
| 755 | stop_tests(t); |
| 756 | fprintf(stderr, "Poll exit with errno %d\n", errno); |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 757 | return -1; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 758 | } |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 759 | |
| 760 | for (i = 0; i < t->poll_count; i++) { |
| 761 | if (t->fds[i].revents & POLLPRI) { |
| 762 | /* Dummy read to clear the event */ |
| 763 | read(t->fds[i].fd, &dummy, 1); |
| 764 | number_of_events++; |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | if (number_of_events == t->poll_count) |
| 769 | break; |
| 770 | } |
| 771 | |
| 772 | if (!is_complete(t)) { |
| 773 | fprintf(stderr, "Iteration count did not finish!\n"); |
| 774 | return -1; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | return 0; |
| 778 | } |
| 779 | |
| 780 | static void prepare_devices(struct loopback_test *t) |
| 781 | { |
| 782 | int i; |
| 783 | |
Ryan Lim | 346bae6 | 2016-07-20 08:14:04 -0700 | [diff] [blame] | 784 | /* Cancel any running tests on enabled devices. If |
| 785 | * stop_all option is given, stop test on all devices. |
| 786 | */ |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 787 | for (i = 0; i < t->device_count; i++) |
Ryan Lim | 346bae6 | 2016-07-20 08:14:04 -0700 | [diff] [blame] | 788 | if (t->stop_all || device_enabled(t, i)) |
Ryan Lim | 2861e20 | 2016-07-20 08:14:02 -0700 | [diff] [blame] | 789 | write_sysfs_val(t->devices[i].sysfs_entry, "type", 0); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 790 | |
| 791 | |
| 792 | for (i = 0; i < t->device_count; i++) { |
| 793 | if (!device_enabled(t, i)) |
| 794 | continue; |
| 795 | |
| 796 | write_sysfs_val(t->devices[i].sysfs_entry, "us_wait", |
| 797 | t->us_wait); |
| 798 | |
| 799 | /* Set operation size */ |
| 800 | write_sysfs_val(t->devices[i].sysfs_entry, "size", t->size); |
| 801 | |
| 802 | /* Set iterations */ |
| 803 | write_sysfs_val(t->devices[i].sysfs_entry, "iteration_max", |
| 804 | t->iteration_max); |
| 805 | |
| 806 | if (t->use_async) { |
| 807 | write_sysfs_val(t->devices[i].sysfs_entry, |
| 808 | "async", 1); |
| 809 | write_sysfs_val(t->devices[i].sysfs_entry, |
| 810 | "timeout", t->async_timeout); |
| 811 | write_sysfs_val(t->devices[i].sysfs_entry, |
| 812 | "outstanding_operations_max", |
| 813 | t->async_outstanding_operations); |
| 814 | } else |
| 815 | write_sysfs_val(t->devices[i].sysfs_entry, |
| 816 | "async", 0); |
| 817 | } |
| 818 | } |
| 819 | |
| 820 | static int start(struct loopback_test *t) |
| 821 | { |
| 822 | int i; |
| 823 | |
| 824 | /* the test starts by writing test_id to the type file. */ |
| 825 | for (i = 0; i < t->device_count; i++) { |
| 826 | if (!device_enabled(t, i)) |
| 827 | continue; |
| 828 | |
| 829 | write_sysfs_val(t->devices[i].sysfs_entry, "type", t->test_id); |
| 830 | } |
| 831 | |
| 832 | return 0; |
| 833 | } |
| 834 | |
| 835 | |
| 836 | void loopback_run(struct loopback_test *t) |
| 837 | { |
| 838 | int i; |
| 839 | int ret; |
| 840 | |
Greg Kroah-Hartman | d5bc960 | 2015-12-15 13:57:22 -0800 | [diff] [blame] | 841 | for (i = 0; dict[i].name != NULL; i++) { |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 842 | if (strstr(dict[i].name, t->test_name)) |
| 843 | t->test_id = dict[i].type; |
| 844 | } |
| 845 | if (!t->test_id) { |
| 846 | fprintf(stderr, "invalid test %s\n", t->test_name); |
| 847 | usage(); |
| 848 | return; |
| 849 | } |
| 850 | |
| 851 | prepare_devices(t); |
| 852 | |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 853 | ret = open_poll_files(t); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 854 | if (ret) |
| 855 | goto err; |
| 856 | |
| 857 | start(t); |
| 858 | |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 859 | ret = wait_for_complete(t); |
| 860 | close_poll_files(t); |
| 861 | if (ret) |
| 862 | goto err; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 863 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 864 | |
| 865 | get_results(t); |
| 866 | |
| 867 | log_results(t); |
| 868 | |
| 869 | return; |
| 870 | |
| 871 | err: |
| 872 | printf("Error running test\n"); |
| 873 | return; |
| 874 | } |
| 875 | |
| 876 | static int sanity_check(struct loopback_test *t) |
| 877 | { |
| 878 | int i; |
| 879 | |
| 880 | if (t->device_count == 0) { |
| 881 | fprintf(stderr, "No loopback devices found\n"); |
| 882 | return -1; |
| 883 | } |
| 884 | |
| 885 | for (i = 0; i < MAX_NUM_DEVICES; i++) { |
| 886 | if (!device_enabled(t, i)) |
| 887 | continue; |
| 888 | |
| 889 | if (t->mask && !strcmp(t->devices[i].name, "")) { |
| 890 | fprintf(stderr, "Bad device mask %x\n", (1 << i)); |
| 891 | return -1; |
| 892 | } |
| 893 | |
| 894 | } |
| 895 | |
| 896 | |
| 897 | return 0; |
| 898 | } |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 899 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 900 | int main(int argc, char *argv[]) |
| 901 | { |
| 902 | int o, ret; |
| 903 | char *sysfs_prefix = "/sys/class/gb_loopback/"; |
| 904 | char *debugfs_prefix = "/sys/kernel/debug/gb_loopback/"; |
| 905 | |
| 906 | memset(&t, 0, sizeof(t)); |
| 907 | |
| 908 | while ((o = getopt(argc, argv, |
Ryan Lim | 346bae6 | 2016-07-20 08:14:04 -0700 | [diff] [blame] | 909 | "t:s:i:S:D:m:v::d::r::p::a::l::x::o:O:c:w:z::f::")) != -1) { |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 910 | switch (o) { |
| 911 | case 't': |
| 912 | snprintf(t.test_name, MAX_STR_LEN, "%s", optarg); |
| 913 | break; |
| 914 | case 's': |
| 915 | t.size = atoi(optarg); |
| 916 | break; |
| 917 | case 'i': |
| 918 | t.iteration_max = atoi(optarg); |
| 919 | break; |
| 920 | case 'S': |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 921 | snprintf(t.sysfs_prefix, MAX_SYSFS_PREFIX, "%s", optarg); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 922 | break; |
| 923 | case 'D': |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 924 | snprintf(t.debugfs_prefix, MAX_SYSFS_PREFIX, "%s", optarg); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 925 | break; |
| 926 | case 'm': |
| 927 | t.mask = atol(optarg); |
| 928 | break; |
| 929 | case 'v': |
| 930 | t.verbose = 1; |
| 931 | break; |
| 932 | case 'd': |
| 933 | t.debug = 1; |
| 934 | break; |
| 935 | case 'r': |
| 936 | t.raw_data_dump = 1; |
| 937 | break; |
| 938 | case 'p': |
| 939 | t.porcelain = 1; |
| 940 | break; |
| 941 | case 'a': |
| 942 | t.aggregate_output = 1; |
| 943 | break; |
| 944 | case 'l': |
| 945 | t.list_devices = 1; |
| 946 | break; |
| 947 | case 'x': |
| 948 | t.use_async = 1; |
| 949 | break; |
| 950 | case 'o': |
| 951 | t.async_timeout = atoi(optarg); |
| 952 | break; |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 953 | case 'O': |
Axel Haslam | 3b90040 | 2016-03-11 13:19:30 +0100 | [diff] [blame] | 954 | t.poll_timeout.tv_sec = atoi(optarg); |
Axel Haslam | 9250c0e | 2016-02-26 11:39:49 +0100 | [diff] [blame] | 955 | break; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 956 | case 'c': |
| 957 | t.async_outstanding_operations = atoi(optarg); |
| 958 | break; |
| 959 | case 'w': |
| 960 | t.us_wait = atoi(optarg); |
| 961 | break; |
Axel Haslam | 5bee760 | 2016-01-26 21:26:02 +0100 | [diff] [blame] | 962 | case 'z': |
| 963 | t.file_output = 1; |
Ryan Lim | bf32654 | 2016-07-20 08:14:03 -0700 | [diff] [blame] | 964 | break; |
Ryan Lim | 346bae6 | 2016-07-20 08:14:04 -0700 | [diff] [blame] | 965 | case 'f': |
| 966 | t.stop_all = 1; |
| 967 | break; |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 968 | default: |
| 969 | usage(); |
| 970 | return -EINVAL; |
| 971 | } |
| 972 | } |
| 973 | |
| 974 | if (!strcmp(t.sysfs_prefix, "")) |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 975 | snprintf(t.sysfs_prefix, MAX_SYSFS_PREFIX, "%s", sysfs_prefix); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 976 | |
| 977 | if (!strcmp(t.debugfs_prefix, "")) |
Johan Hovold | 0e68b68 | 2020-03-12 12:01:51 +0100 | [diff] [blame] | 978 | snprintf(t.debugfs_prefix, MAX_SYSFS_PREFIX, "%s", debugfs_prefix); |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 979 | |
| 980 | ret = find_loopback_devices(&t); |
| 981 | if (ret) |
| 982 | return ret; |
| 983 | ret = sanity_check(&t); |
| 984 | if (ret) |
| 985 | return ret; |
| 986 | |
| 987 | if (t.list_devices) { |
| 988 | show_loopback_devices(&t); |
| 989 | return 0; |
| 990 | } |
| 991 | |
| 992 | if (t.test_name[0] == '\0' || t.iteration_max == 0) |
| 993 | usage(); |
| 994 | |
| 995 | if (t.async_timeout == 0) |
| 996 | t.async_timeout = DEFAULT_ASYNC_TIMEOUT; |
| 997 | |
Greg Kroah-Hartman | 6b0658f | 2015-12-15 12:46:22 -0800 | [diff] [blame] | 998 | loopback_run(&t); |
| 999 | |
| 1000 | return 0; |
| 1001 | } |