1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462
|
/*
* Copyright 2015, International Business Machines
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file genwqe_echo.c
* @brief FPGA accelerator SW utility.
*
* This utility sends ECHO-DDCBs to the Service Layer Unit (SLU) or an
* chip application unit (or AFU), waits for completion and checks if
* the teststring is correctly returned.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <time.h>
#include <signal.h>
#include <sys/time.h>
#include <asm/byteorder.h>
#include <sched.h>
#include "genwqe_tools.h"
#include "force_cpu.h"
#include "libddcb.h"
#define timediff_usec(t0, t1) \
((double)(((t0)->tv_sec * 1000000 + (t0)->tv_usec) - \
((t1)->tv_sec * 1000000 + (t1)->tv_usec)))
int verbose_flag = 0;
static const char *version = GIT_VERSION;
const char *tstring_default = "ABCDEF_echo test [123456789abcde]";
/**
* @brief prints valid command line options
*
* @param prog current program's name
*/
static void usage(const char *prog)
{
printf("Usage: %s [OPTIONS]\n"
" -h, --help\n"
" -v, --verbose\n"
" -C, --card=CARDNO|RED Note: RED is for Card Redundant mode\n"
" -A, --accelerator-type=GENWQE|CAPI CAPI is only available "
"for System p\n"
" -q, --quiet quiece output\n"
" -V, --version\n"
" -H, --hardware-version\n"
" -c, --count=COUNT\n"
" -X, --cpu=CPU only run on this CPU number\n"
" -D, --debug create extended debug data on failure\n"
#if defined (CONFIG_BUILD_4TEST)
" -u, --unitid=0:service layer|1:APP\n"
#endif
" -e, --exit-on-err exit program when seeing an error\n"
" -f, --flood\n"
" -l, --preload=1..N N <= 64\n"
" -i, --interval=INTERVAL_USEC\n"
" -s, --string=TESTSTRING\n"
" -p, --polling use DDCB polling mode.\n"
" -q, --quiet only summary output\n"
"\n"
"This utility sends echo DDCBs either to the service layer\n"
"or other chip units. It can be used to check the cards\n"
"health and/or to produce stress on the card to verify its\n"
"correct function.\n\n", prog);
}
static void INT_handler(int sig);
static int stop_echoing = 0;
static void INT_handler(int sig)
{
signal(sig, SIG_IGN);
stop_echoing = 1;
/* signal(SIGINT, INT_handler); *//* Try again */
}
/**
* @brief prepare data to be send via ECHO-DDCB.
* clear receive part.
* SLU allows 64 bytes to be echoed.
*
* @param tstring test string to be send to SLU
* @param acfunc Unit-ID in HW: 0=SLU, 1=APP
* @param cmd command definitions and return values
* @param count how often shall the command be issued
*
*/
static void preset_echo_cmd(char *tstring, uint8_t acfunc,
struct ddcb_cmd *cmd, int count)
{
int i, j;
int len;
/* preset tx values */
len = (int)strlen(tstring);
len = ((len + 7) / 8) * 8; /* round up to multiples of 8 */
if (len > DDCB_ASV_LENGTH) {
pr_info("test string too long (%u)\n",
(unsigned int)strlen(tstring));
len = DDCB_ASV_LENGTH; /* limit to 64 chars */
}
for (i = 0; i < count; i++) {
cmd->acfunc = acfunc; /* to which func is echo going? */
cmd->ddata_addr = 0ull; /* FIXME */
cmd->cmd = DDCB_CMD_ECHO_SYNC;
cmd->cmdopts = _DDCB_OPT_ECHO_COPY_ALL;
cmd->ats = 0ULL;
strncpy((char *)cmd->asiv, tstring, len);
cmd->asiv_length = 64;
/* clear rx values */
for (j=0; j < DDCB_ASV_LENGTH; j++)
cmd->asv[j] = 0;
cmd->asv_length = 64;
cmd->retc = DDCB_RETC_IDLE; /* still unprocessed */
if (i < (count-1)) /* chaining */
cmd->next_addr = (unsigned long)(cmd + 1);
else
cmd->next_addr = 0x0;
cmd++;
}
pr_info("%u ECHO DDCBs prepared (%u bytes to send)\n", count, len);
}
static int do_echo(accel_t card, int preload, uint8_t unit,
char *teststring)
{
int rc, j, xerrno;
unsigned int i;
struct ddcb_cmd *cmd, *pcmd;
/* uint64_t reg64; */
/* FIXME mallocs eat performance. Consider to allocate largest
size on stack. */
cmd = (struct ddcb_cmd *)malloc(preload * sizeof(*cmd));
if (cmd == NULL) {
fprintf(stderr, "err: failed to alloc cmd memory\n");
return -ENOMEM;
}
memset(cmd, 0, preload * sizeof(*cmd));
/* preset all cmd structures */
preset_echo_cmd(teststring, unit, cmd, preload);
pcmd = cmd;
/* issue ECHO commands */
rc = accel_ddcb_execute(card, pcmd, NULL, &xerrno);
if (rc != DDCB_OK) {
fprintf(stderr,
"err: Echo DDCB failed: %s (%d)\n"
" errno=%d %s\n"
" RETC: %03x %s ATTN: %02x PROGR: %x\n",
ddcb_strerror(rc), rc, xerrno, strerror(xerrno),
pcmd->retc, ddcb_retc_strerror(pcmd->retc),
pcmd->attn, pcmd->progress);
goto err;
}
/* now check all results */
pcmd = cmd;
rc = EXIT_SUCCESS;
for (j = 0; j < preload; j++) {
if (strncmp((char *)pcmd->asv, teststring,
strlen(teststring)) != 0) {
printf("\nDDCB echo compare failed\n"
" retc=%x %s:\n",
pcmd->retc, ddcb_retc_strerror(pcmd->retc));
printf(" original: ");
for (i = 0; i < strlen(teststring); i++) {
printf(" %02x", teststring[i]);
if ((i & 0x0f) == 0x0f)
printf("\n ");
}
printf("\n received: ");
for (i = 0; i < pcmd->asv_length; i++) {
printf(" %02x", pcmd->asv[i]);
if ((i & 0x0f) == 0x0f)
printf("\n ");
}
printf("\n");
rc = EX_ERR_DATA;
break;
} else {
pr_info("Echo OK (retc=%x %s)\n", pcmd->retc,
ddcb_retc_strerror(pcmd->retc));
}
pcmd++;
}
err:
free(cmd);
return rc;
}
/**
* @brief the utility itself
*/
int main(int argc, char *argv[])
{
int ch, rc = DDCB_OK;
int card_no = 0;
int card_type = DDCB_TYPE_GENWQE;
int preload = 1;
int flood = 0;
bool print_hardware_version = false;
int quiet = 0;
int exit_on_err = 1;
unsigned long count = 0;
int run_infinite = 1;
unsigned long interval = 1000000; /* 1sec is default */
uint8_t unit = DDCB_ACFUNC_APP; /* 0=Servicelayer/1=ZCOMP/GZIP/... */
accel_t card;
char *teststring =(char *)tstring_default;
unsigned long packets_send = 0, packets_received = 0;
int cpu = -1;
int err_code = 0;
unsigned long long frequency, wtime_usec = 0, wtime_s = 0, wtime_e = 0;
unsigned int mode = (DDCB_MODE_RDWR | DDCB_MODE_ASYNC);
while (1) {
int option_index = 0;
static struct option long_options[] = {
/* functions */
/* options */
{ "card", required_argument, NULL, 'C' },
{ "accelerator-type", required_argument, NULL, 'A' },
{ "cpu", required_argument, NULL, 'X' },
{ "count", required_argument, NULL, 'c' },
{ "preload", required_argument, NULL, 'l' },
{ "interval", required_argument, NULL, 'i' },
{ "string", required_argument, NULL, 's' },
#if defined (CONFIG_BUILD_4TEST)
{ "unit", required_argument, NULL, 'u' },
#endif
{ "exit-on-err", required_argument, NULL, 'e' },
{ "flood", no_argument, NULL, 'f' },
/* misc/support */
{ "version", no_argument, NULL, 'V' },
{ "hardware-version", no_argument, NULL, 'H' },
{ "debug", no_argument, NULL, 'D' },
{ "polling", no_argument, NULL, 'p' },
{ "quiet", no_argument, NULL, 'q' },
{ "verbose", no_argument, NULL, 'v' },
{ "help", no_argument, NULL, 'h' },
{ 0, no_argument, NULL, 0 },
};
#if defined (CONFIG_BUILD_4TEST)
ch = getopt_long(argc, argv, "pDC:A:c:fhl:i:s:qvX:HVu:e:",
long_options, &option_index);
#else
ch = getopt_long(argc, argv, "pDC:A:c:fhl:i:s:qvX:HVe:",
long_options, &option_index);
#endif
if (ch == -1) /* all params processed ? */
break;
switch (ch) {
case 'C':
if (strcmp(optarg, "RED") == 0) {
card_no = ACCEL_REDUNDANT;
break;
}
card_no = strtol(optarg, (char **)NULL, 0);
break;
case 'A': /* set card number */
if (strcmp(optarg, "GENWQE") == 0) {
card_type = DDCB_TYPE_GENWQE;
break;
}
if (strcmp(optarg, "CAPI") == 0) {
card_type = DDCB_TYPE_CAPI;
break;
}
card_type = strtol(optarg, (char **)NULL, 0);
break;
case 'X':
cpu = strtoul(optarg, NULL, 0);
break;
case 'c': /* loop count */
count = strtol(optarg, (char **)NULL, 0);
run_infinite = 0;
break;
case 'l': /* preload */
preload = strtol(optarg, (char **)NULL, 0);
break;
case 'i': /* interval */
interval = strtol(optarg, (char **)NULL, 0);
break;
case 'f':
flood = 1;
interval = 0;
break;
case 's': /* string */
teststring = optarg;
if (strlen(teststring) > DDCB_ASV_LENGTH) {
printf("WARNING: Limited string to %d bytes\n",
DDCB_ASV_LENGTH);
teststring[DDCB_ASV_LENGTH] = 0;
}
break;
case 'e':
exit_on_err = strtol(optarg, (char **)NULL, 0);
break;
#if defined (CONFIG_BUILD_4TEST)
case 'u': /* unit */
unit = strtol(optarg, (char **)NULL, 0);
break;
#endif
case 'V':
printf("%s\n", version);
exit(EXIT_SUCCESS);
case 'D':
/* debug_flag++; *//* FIXME disabled */
break;
case 'p':
mode |= DDCB_MODE_POLLING;
break;
case 'q':
quiet++;
break;
case 'v':
verbose_flag++;
break;
case 'h':
usage(argv[0]);
exit(EXIT_SUCCESS);
break;
case 'H':
print_hardware_version = true;
break;
default:
usage(argv[0]);
exit(EXIT_FAILURE);
}
}
if (optind != argc) {
usage(argv[0]);
exit(EXIT_FAILURE);
}
switch_cpu(cpu, verbose_flag);
ddcb_debug(verbose_flag);
/* open card access (for DDCB) */
card = accel_open(card_no, card_type, mode, &err_code, 0,
DDCB_APPL_ID_IGNORE);
if (card == NULL) {
fprintf(stderr, "err: failed to open card %u type %u "
"(%d/%s)\n", card_no, card_type, err_code,
accel_strerror(card, err_code));
rc = err_code;
goto err_out;
}
if (print_hardware_version) {
accel_dump_hardware_version(card, stderr);
goto close_card;
}
/* Note: I want to be able to send to an illegal unit as a
testcase */
pr_info("Start DDCB Echo '%s' for unit #%x\n", teststring, unit);
if (preload < 1)
preload = 1;
signal(SIGINT, INT_handler);
wtime_s = accel_get_queue_work_time(card);
while (!stop_echoing) {
struct timeval t0, t1;
if (!run_infinite && !count)
break;
gettimeofday(&t0, NULL);
rc = do_echo(card, preload, unit, teststring);
gettimeofday(&t1, NULL);
packets_send++;
if (rc == 0) {
if (!flood && !quiet) {
printf("%d x %u bytes from UNIT #%x: "
"echo_req time=%2.1f usec\n",
preload, (int)strlen(teststring),
unit, timediff_usec(&t1, &t0));
}
packets_received++;
}
count--;
if (!run_infinite && !count)
break; /* stop without waiting, if count is 0 */
if (interval)
usleep(interval);
if (exit_on_err && (rc != DDCB_OK))
break;
}
wtime_e = accel_get_queue_work_time(card);
frequency = accel_get_frequency(card);
wtime_usec = frequency ? (wtime_e - wtime_s) / (frequency/1000000) : 0;
close_card:
accel_close(card);
if (!flood && !quiet)
printf("\n");
err_out:
if (!quiet) {
printf("--- UNIT #%x echo statistics ---\n"
"%ld packets transmitted, %ld received, %ld lost, "
"%ld%% packet loss, queue %lld usec\n",
unit, packets_send,
packets_received, (packets_send - packets_received),
!packets_send ? 100 :
100 * (packets_send - packets_received)/packets_send,
wtime_usec);
}
if (rc != DDCB_OK)
exit(EXIT_FAILURE);
exit(EXIT_SUCCESS);
}
|