Exemple #1
0
static bool bitforce_get_temp(struct cgpu_info *bitforce)
{
	int fdDev = bitforce->device_fd;
	char pdevbuf[0x100];
	char *s;

	if (!fdDev)
		return false;

	/* Do not try to get the temperature if we're polling for a result to
	 * minimise the change of interleaved results */
	if (bitforce->polling)
		return true;

	/* It is not critical getting temperature so don't get stuck if  we
	 * can't grab the mutex here */
	if (mutex_trylock(&bitforce->device_mutex))
		return false;

	BFwrite(fdDev, "ZLX", 3);
	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
	mutex_unlock(&bitforce->device_mutex);
	
	if (unlikely(!pdevbuf[0])) {
		applog(LOG_ERR, "BFL%i: Error: Get temp returned empty string/timed out", bitforce->device_id);
		bitforce->hw_errors++;
		return false;
	}

	if ((!strncasecmp(pdevbuf, "TEMP", 4)) && (s = strchr(pdevbuf + 4, ':'))) {
		float temp = strtof(s + 1, NULL);

		if (temp > 0) {
			bitforce->temp = temp;
			if (unlikely(bitforce->cutofftemp > 0 && temp > bitforce->cutofftemp)) {
				applog(LOG_WARNING, "BFL%i: Hit thermal cutoff limit, disabling!", bitforce->device_id);
				bitforce->deven = DEV_RECOVER;

				bitforce->device_last_not_well = time(NULL);
				bitforce->device_not_well_reason = REASON_DEV_THERMAL_CUTOFF;
				bitforce->dev_thermal_cutoff_count++;
			}
		}
	} else {
		/* Use the temperature monitor as a kind of watchdog for when
		 * our responses are out of sync and flush the buffer to
		 * hopefully recover */
		applog(LOG_WARNING, "BFL%i: Garbled response probably throttling, clearing buffer");
		/* Count throttling episodes as hardware errors */
		bitforce->hw_errors++;
		bitforce_clear_buffer(bitforce);
		return false;;
	}

	return true;
}
void bitforce_init(struct cgpu_info *bitforce)
{
	char *devpath = bitforce->device_path;
	int fdDev = bitforce->device_fd, retries = 0;
	char pdevbuf[0x100];
	char *s;

	applog(LOG_WARNING, "BFL%i: Re-initialising", bitforce->device_id);

	bitforce_clear_buffer(bitforce);

	mutex_lock(&bitforce->device_mutex);
	if (fdDev) {
		BFclose(fdDev);
		sleep(5);
	}
	bitforce->device_fd = 0;

	fdDev = BFopen(devpath);
	if (unlikely(fdDev == -1)) {
		mutex_unlock(&bitforce->device_mutex);
		applog(LOG_ERR, "BFL%i: Failed to open %s", bitforce->device_id, devpath);
		return;
	}

	do {
		BFwrite(fdDev, "ZGX", 3);
		pdevbuf[0] = '\0';
		BFgets(pdevbuf, sizeof(pdevbuf), fdDev);

		if (unlikely(!pdevbuf[0])) {
			mutex_unlock(&bitforce->device_mutex);
			applog(LOG_ERR, "BFL%i: Error reading/timeout (ZGX)", bitforce->device_id);
			return;
		}

		if (retries++)
			nmsleep(10);
	} while (!strstr(pdevbuf, "BUSY") && (retries * 10 < BITFORCE_TIMEOUT_MS));

	if (unlikely(!strstr(pdevbuf, "SHA256"))) {
		mutex_unlock(&bitforce->device_mutex);
		applog(LOG_ERR, "BFL%i: Didn't recognise BitForce on %s returned: %s", bitforce->device_id, devpath, pdevbuf);
		return;
	}
	
	if (likely((!memcmp(pdevbuf, ">>>ID: ", 7)) && (s = strstr(pdevbuf + 3, ">>>")))) {
		s[0] = '\0';
		bitforce->name = strdup(pdevbuf + 7);
	}

	bitforce->device_fd = fdDev;
	bitforce->sleep_ms = BITFORCE_SLEEP_MS;

	mutex_unlock(&bitforce->device_mutex);
}
static bool bitforce_detect_one(const char *devpath)
{
	int fdDev = BFopen(devpath);
	struct cgpu_info *bitforce;
	char pdevbuf[0x100];
	char *s;

	applog(LOG_DEBUG, "BFL: Attempting to open %s", devpath);

	if (unlikely(fdDev == -1)) {
		applog(LOG_ERR, "BFL: Failed to open %s", devpath);
		return false;
	}

	BFwrite(fdDev, "ZGX", 3);
	pdevbuf[0] = '\0';
	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
	if (unlikely(!pdevbuf[0])) {
		applog(LOG_ERR, "BFL: Error reading/timeout (ZGX)");
		return 0;
	}

	BFclose(fdDev);
	if (unlikely(!strstr(pdevbuf, "SHA256"))) {
		applog(LOG_ERR, "BFL: Didn't recognise BitForce on %s", devpath);
		return false;
	}

	// We have a real BitForce!
	bitforce = calloc(1, sizeof(*bitforce));
	bitforce->api = &bitforce_api;
	bitforce->device_path = strdup(devpath);
	bitforce->deven = DEV_ENABLED;
	bitforce->threads = 1;
	/* Initially enable support for nonce range and disable it later if it
	 * fails */
	if (opt_bfl_noncerange) {
		bitforce->nonce_range = true;
		bitforce->sleep_ms = BITFORCE_SLEEP_MS;
		bitforce->kname = KNAME_RANGE;
	} else {
		bitforce->sleep_ms = BITFORCE_SLEEP_MS * 5;
		bitforce->kname = KNAME_WORK;
	}

	if (likely((!memcmp(pdevbuf, ">>>ID: ", 7)) && (s = strstr(pdevbuf + 3, ">>>")))) {
		s[0] = '\0';
		bitforce->name = strdup(pdevbuf + 7);
	}

	mutex_init(&bitforce->device_mutex);

	return add_cgpu(bitforce);
}
Exemple #4
0
static void bitforce_clear_buffer(struct cgpu_info *bitforce)
{
	int fdDev = bitforce->device_fd;
	char pdevbuf[0x100];
	int count = 0;

	if (!fdDev)
		return;

	applog(LOG_DEBUG, "BFL%i: Clearing read buffer", bitforce->device_id);

	mutex_lock(&bitforce->device_mutex);
	do {
		pdevbuf[0] = '\0';
		BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
	} while (pdevbuf[0] && (++count < 10));
	mutex_unlock(&bitforce->device_mutex);
}
Exemple #5
0
static int64_t bitforce_get_result(struct thr_info *thr, struct work *work)
{
	struct cgpu_info *bitforce = thr->cgpu;
	int fdDev = bitforce->device_fd;
	unsigned int delay_time_ms;
	struct timeval elapsed;
	struct timeval now;
	char pdevbuf[0x100];
	char *pnoncebuf;
	uint32_t nonce;

	if (!fdDev)
		return -1;

	while (1) {
		if (unlikely(thr->work_restart))
			return 0;

		mutex_lock(&bitforce->device_mutex);
		BFwrite(fdDev, "ZFX", 3);
		BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
		mutex_unlock(&bitforce->device_mutex);

		gettimeofday(&now, NULL);
		timersub(&now, &bitforce->work_start_tv, &elapsed);

		if (elapsed.tv_sec >= BITFORCE_LONG_TIMEOUT_S) {
			applog(LOG_ERR, "BFL%i: took %dms - longer than %dms", bitforce->device_id,
				tv_to_ms(elapsed), BITFORCE_LONG_TIMEOUT_MS);
			return 0;
		}

		if (pdevbuf[0] && strncasecmp(pdevbuf, "B", 1)) /* BFL does not respond during throttling */
			break;

		/* if BFL is throttling, no point checking so quickly */
		delay_time_ms = (pdevbuf[0] ? BITFORCE_CHECK_INTERVAL_MS : 2 * WORK_CHECK_INTERVAL_MS);
		nmsleep(delay_time_ms);
		bitforce->wait_ms += delay_time_ms;
	}

	if (elapsed.tv_sec > BITFORCE_TIMEOUT_S) {
		applog(LOG_ERR, "BFL%i: took %dms - longer than %dms", bitforce->device_id,
			tv_to_ms(elapsed), BITFORCE_TIMEOUT_MS);
		bitforce->device_last_not_well = time(NULL);
		bitforce->device_not_well_reason = REASON_DEV_OVER_HEAT;
		bitforce->dev_over_heat_count++;

		if (!pdevbuf[0])	/* Only return if we got nothing after timeout - there still may be results */
			return 0;
	} else if (!strncasecmp(pdevbuf, "N", 1)) {/* Hashing complete (NONCE-FOUND or NO-NONCE) */
		/* Simple timing adjustment. Allow a few polls to cope with
		 * OS timer delays being variably reliable. wait_ms will
		 * always equal sleep_ms when we've waited greater than or
		 * equal to the result return time.*/
		delay_time_ms = bitforce->sleep_ms;

		if (bitforce->wait_ms > bitforce->sleep_ms + (WORK_CHECK_INTERVAL_MS * 2))
			bitforce->sleep_ms += (bitforce->wait_ms - bitforce->sleep_ms) / 2;
		else if (bitforce->wait_ms == bitforce->sleep_ms) {
			if (bitforce->sleep_ms > WORK_CHECK_INTERVAL_MS)
				bitforce->sleep_ms -= WORK_CHECK_INTERVAL_MS;
			else if (bitforce->sleep_ms > BITFORCE_CHECK_INTERVAL_MS)
				bitforce->sleep_ms -= BITFORCE_CHECK_INTERVAL_MS;
		}

		if (delay_time_ms != bitforce->sleep_ms)
			  applog(LOG_DEBUG, "BFL%i: Wait time changed to: %d, waited %u", bitforce->device_id, bitforce->sleep_ms, bitforce->wait_ms);

		/* Work out the average time taken. Float for calculation, uint for display */
		bitforce->avg_wait_f += (tv_to_ms(elapsed) - bitforce->avg_wait_f) / TIME_AVG_CONSTANT;
		bitforce->avg_wait_d = (unsigned int) (bitforce->avg_wait_f + 0.5);
	}

	applog(LOG_DEBUG, "BFL%i: waited %dms until %s", bitforce->device_id, bitforce->wait_ms, pdevbuf);
	if (!strncasecmp(&pdevbuf[2], "-", 1))
		return bitforce->nonces;   /* No valid nonce found */
	else if (!strncasecmp(pdevbuf, "I", 1))
		return 0;	/* Device idle */
	else if (strncasecmp(pdevbuf, "NONCE-FOUND", 11)) {
		bitforce->hw_errors++;
		applog(LOG_WARNING, "BFL%i: Error: Get result reports: %s", bitforce->device_id, pdevbuf);
		bitforce_clear_buffer(bitforce);
		return 0;
	}

	pnoncebuf = &pdevbuf[12];

	while (1) {
		hex2bin((void*)&nonce, pnoncebuf, 4);
#ifndef __BIG_ENDIAN__
		nonce = swab32(nonce);
#endif
		if (unlikely(bitforce->nonce_range && (nonce >= work->blk.nonce ||
			(work->blk.nonce > 0 && nonce < work->blk.nonce - bitforce->nonces - 1)))) {
				applog(LOG_WARNING, "BFL%i: Disabling broken nonce range support", bitforce->device_id);
				bitforce->nonce_range = false;
				work->blk.nonce = 0xffffffff;
				bitforce->sleep_ms *= 5;
				bitforce->kname = KNAME_WORK;
		}
			
		submit_nonce(thr, work, nonce);
		if (strncmp(&pnoncebuf[8], ",", 1))
			break;
		pnoncebuf += 9;
	}

	return bitforce->nonces;
}
Exemple #6
0
static bool bitforce_send_work(struct thr_info *thr, struct work *work)
{
	struct cgpu_info *bitforce = thr->cgpu;
	int fdDev = bitforce->device_fd;
	unsigned char ob[70];
	char pdevbuf[0x100];
	char *s;

	if (!fdDev)
		return false;
re_send:
	mutex_lock(&bitforce->device_mutex);
	if (bitforce->nonce_range)
		BFwrite(fdDev, "ZPX", 3);
	else
		BFwrite(fdDev, "ZDX", 3);
	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
	if (!pdevbuf[0] || !strncasecmp(pdevbuf, "B", 1)) {
		mutex_unlock(&bitforce->device_mutex);
		nmsleep(WORK_CHECK_INTERVAL_MS);
		goto re_send;
	} else if (unlikely(strncasecmp(pdevbuf, "OK", 2))) {
		mutex_unlock(&bitforce->device_mutex);
		if (bitforce->nonce_range) {
			applog(LOG_WARNING, "BFL%i: Does not support nonce range, disabling", bitforce->device_id);
			bitforce->nonce_range = false;
			bitforce->sleep_ms *= 5;
			bitforce->kname = KNAME_WORK;
			goto re_send;
		}
		applog(LOG_ERR, "BFL%i: Error: Send work reports: %s", bitforce->device_id, pdevbuf);
		return false;
	}

	sprintf((char *)ob, ">>>>>>>>");
	memcpy(ob + 8, work->midstate, 32);
	memcpy(ob + 8 + 32, work->data + 64, 12);
	if (!bitforce->nonce_range) {
		sprintf((char *)ob + 8 + 32 + 12, ">>>>>>>>");
		work->blk.nonce = bitforce->nonces = 0xffffffff;
		BFwrite(fdDev, ob, 60);
	} else {
		uint32_t *nonce;

		nonce = (uint32_t *)(ob + 8 + 32 + 12);
		*nonce = htobe32(work->blk.nonce);
		nonce = (uint32_t *)(ob + 8 + 32 + 12 + 4);
		/* Split work up into 1/5th nonce ranges */
		bitforce->nonces = 0x33333332;
		*nonce = htobe32(work->blk.nonce + bitforce->nonces);
		work->blk.nonce += bitforce->nonces + 1;
		sprintf((char *)ob + 8 + 32 + 12 + 8, ">>>>>>>>");
		BFwrite(fdDev, ob, 68);
	}

	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
	mutex_unlock(&bitforce->device_mutex);

	if (opt_debug) {
		s = bin2hex(ob + 8, 44);
		applog(LOG_DEBUG, "BFL%i: block data: %s", bitforce->device_id, s);
		free(s);
	}

	if (unlikely(!pdevbuf[0])) {
		applog(LOG_ERR, "BFL%i: Error: Send block data returned empty string/timed out", bitforce->device_id);
		return false;
	}

	if (unlikely(strncasecmp(pdevbuf, "OK", 2))) {
		applog(LOG_ERR, "BFL%i: Error: Send block data reports: %s", bitforce->device_id, pdevbuf);
		return false;
	}

	gettimeofday(&bitforce->work_start_tv, NULL);
	return true;
}