static void bitforce_flash_led(struct cgpu_info *bitforce)
{
int err, amount;
/* Do not try to flash the led if we're polling for a result to
* minimise the chance of interleaved results */
if (bitforce->polling)
return;
/* It is not critical flashing the led so don't get stuck if we
* can't grab the mutex now */
if (mutex_trylock(&bitforce->device_mutex))
return;
if ((err = usb_write(bitforce, BITFORCE_FLASH, BITFORCE_FLASH_LEN, &amount, C_REQUESTFLASH)) < 0 || amount != BITFORCE_FLASH_LEN) {
applog(LOG_ERR, "%s%i: flash request failed (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
} else {
/* However, this stops anything else getting a reply
* So best to delay any other access to the BFL */
nmsleep(4000);
}
/* Once we've tried - don't do it until told to again */
bitforce->flash_led = false;
mutex_unlock(&bitforce->device_mutex);
return; // nothing is returned by the BFL
}
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_thread_init(struct thr_info *thr)
{
struct cgpu_info *bitforce = thr->cgpu;
unsigned int wait;
/* Pause each new thread at least 100ms between initialising
* so the devices aren't making calls all at the same time. */
wait = thr->id * MAX_START_DELAY_MS;
applog(LOG_DEBUG, "BFL%i: Delaying start by %dms", bitforce->device_id, wait / 1000);
nmsleep(wait);
return true;
}
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;
}
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;
}
static bool bitforce_send_work(struct thr_info *thr, struct work *work)
{
struct cgpu_info *bitforce = thr->cgpu;
unsigned char ob[70];
char buf[BITFORCE_BUFSIZ+1];
int err, amount;
char *s;
char *cmd;
int len;
re_send:
if (bitforce->nonce_range) {
cmd = BITFORCE_SENDRANGE;
len = BITFORCE_SENDRANGE_LEN;
} else {
cmd = BITFORCE_SENDWORK;
len = BITFORCE_SENDWORK_LEN;
}
mutex_lock(&bitforce->device_mutex);
if ((err = usb_write(bitforce, cmd, len, &amount, C_REQUESTSENDWORK)) < 0 || amount != len) {
mutex_unlock(&bitforce->device_mutex);
applog(LOG_ERR, "%s%i: request send work failed (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
return false;
}
if ((err = usb_ftdi_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_REQUESTSENDWORKSTATUS)) < 0) {
mutex_unlock(&bitforce->device_mutex);
applog(LOG_ERR, "%s%d: read request send work status failed (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
return false;
}
if (amount == 0 || !buf[0] || !strncasecmp(buf, "B", 1)) {
mutex_unlock(&bitforce->device_mutex);
nmsleep(WORK_CHECK_INTERVAL_MS);
goto re_send;
} else if (unlikely(strncasecmp(buf, "OK", 2))) {
mutex_unlock(&bitforce->device_mutex);
if (bitforce->nonce_range) {
applog(LOG_WARNING, "%s%i: Does not support nonce range, disabling",
bitforce->drv->name, bitforce->device_id);
bitforce->nonce_range = false;
bitforce->sleep_ms *= 5;
bitforce->kname = KNAME_WORK;
goto re_send;
}
applog(LOG_ERR, "%s%i: Error: Send work reports: %s",
bitforce->drv->name, bitforce->device_id, buf);
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;
len = 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, ">>>>>>>>");
len = 68;
}
if ((err = usb_write(bitforce, (char *)ob, len, &amount, C_SENDWORK)) < 0 || amount != len) {
mutex_unlock(&bitforce->device_mutex);
applog(LOG_ERR, "%s%i: send work failed (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
return false;
}
if ((err = usb_ftdi_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_SENDWORKSTATUS)) < 0) {
mutex_unlock(&bitforce->device_mutex);
applog(LOG_ERR, "%s%d: read send work status failed (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
return false;
}
mutex_unlock(&bitforce->device_mutex);
if (opt_debug) {
s = bin2hex(ob + 8, 44);
applog(LOG_DEBUG, "%s%i: block data: %s",
bitforce->drv->name, bitforce->device_id, s);
free(s);
}
if (amount == 0 || !buf[0]) {
applog(LOG_ERR, "%s%i: Error: Send block data returned empty string/timed out",
bitforce->drv->name, bitforce->device_id);
return false;
}
if (unlikely(strncasecmp(buf, "OK", 2))) {
applog(LOG_ERR, "%s%i: Error: Send block data reports: %s",
bitforce->drv->name, bitforce->device_id, buf);
return false;
}
gettimeofday(&bitforce->work_start_tv, NULL);
return true;
}
static bool bitforce_detect_one(struct libusb_device *dev, struct usb_find_devices *found)
{
char buf[BITFORCE_BUFSIZ+1];
char devpath[20];
int err, amount;
char *s;
struct cgpu_info *bitforce = NULL;
bitforce = calloc(1, sizeof(*bitforce));
bitforce->drv = &bitforce_drv;
bitforce->deven = DEV_ENABLED;
bitforce->threads = 1;
if (!usb_init(bitforce, dev, found)) {
applog(LOG_ERR, "%s detect (%d:%d) failed to initialise (incorrect device?)",
bitforce->drv->dname,
(int)libusb_get_bus_number(dev),
(int)libusb_get_device_address(dev));
goto shin;
}
sprintf(devpath, "%d:%d",
(int)(bitforce->usbdev->bus_number),
(int)(bitforce->usbdev->device_address));
int init_count = 0;
reinit:
bitforce_initialise(bitforce, false);
if ((err = usb_write(bitforce, BITFORCE_IDENTIFY, BITFORCE_IDENTIFY_LEN, &amount, C_REQUESTIDENTIFY)) < 0 || amount != BITFORCE_IDENTIFY_LEN) {
applog(LOG_ERR, "%s detect (%s) send identify request failed (%d:%d)",
bitforce->drv->dname, devpath, amount, err);
goto unshin;
}
if ((err = usb_ftdi_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_GETIDENTIFY)) < 0 || amount < 1) {
// Maybe it was still processing previous work?
if (++init_count <= REINIT_COUNT) {
if (init_count < 2) {
applog(LOG_WARNING, "%s detect (%s) 1st init failed - retrying (%d:%d)",
bitforce->drv->dname, devpath, amount, err);
}
nmsleep(REINIT_TIME_MS);
goto reinit;
}
if (init_count > 0)
applog(LOG_WARNING, "%s detect (%s) init failed %d times",
bitforce->drv->dname, devpath, init_count);
if (err < 0) {
applog(LOG_ERR, "%s detect (%s) error identify reply (%d:%d)",
bitforce->drv->dname, devpath, amount, err);
} else {
applog(LOG_ERR, "%s detect (%s) empty identify reply (%d)",
bitforce->drv->dname, devpath, amount);
}
goto unshin;
}
buf[amount] = '\0';
if (unlikely(!strstr(buf, "SHA256"))) {
applog(LOG_ERR, "%s detect (%s) didn't recognise '%s'",
bitforce->drv->dname, devpath, buf);
goto unshin;
}
if (likely((!memcmp(buf, ">>>ID: ", 7)) && (s = strstr(buf + 3, ">>>")))) {
s[0] = '\0';
bitforce->name = strdup(buf + 7);
} else {
bitforce->name = (char *)blank;
}
// We have a real BitForce!
applog(LOG_DEBUG, "%s (%s) identified as: '%s'",
bitforce->drv->dname, devpath, bitforce->name);
/* 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;
}
bitforce->device_path = strdup(devpath);
if (!add_cgpu(bitforce))
goto unshin;
update_usb_stats(bitforce);
mutex_init(&bitforce->device_mutex);
return true;
unshin:
usb_uninit(bitforce);
shin:
free(bitforce->device_path);
if (bitforce->name != blank)
free(bitforce->name);
free(bitforce);
return false;
}
static bool ztex_checkNonce(struct libztex_device *ztex,
struct work *work,
struct libztex_hash_data *hdata)
{
uint32_t *data32 = (uint32_t *)(work->data);
unsigned char swap[80];
uint32_t *swap32 = (uint32_t *)swap;
unsigned char hash1[32];
unsigned char hash2[32];
uint32_t *hash2_32 = (uint32_t *)hash2;
int i;
#if defined(__BIGENDIAN__) || defined(MIPSEB)
hdata->nonce = swab32(hdata->nonce);
hdata->hash7 = swab32(hdata->hash7);
#endif
work->data[64 + 12 + 0] = (hdata->nonce >> 0) & 0xff;
work->data[64 + 12 + 1] = (hdata->nonce >> 8) & 0xff;
work->data[64 + 12 + 2] = (hdata->nonce >> 16) & 0xff;
work->data[64 + 12 + 3] = (hdata->nonce >> 24) & 0xff;
for (i = 0; i < 80 / 4; i++)
swap32[i] = swab32(data32[i]);
sha2(swap, 80, hash1, false);
sha2(hash1, 32, hash2, false);
#if defined(__BIGENDIAN__) || defined(MIPSEB)
if (hash2_32[7] != ((hdata->hash7 + 0x5be0cd19) & 0xFFFFFFFF)) {
#else
if (swab32(hash2_32[7]) != ((hdata->hash7 + 0x5be0cd19) & 0xFFFFFFFF)) {
#endif
ztex->errorCount[ztex->freqM] += 1.0 / ztex->numNonces;
applog(LOG_DEBUG, "%s: checkNonce failed for %0.8X", ztex->repr, hdata->nonce);
return false;
}
return true;
}
static int64_t ztex_scanhash(struct thr_info *thr, struct work *work,
__maybe_unused int64_t max_nonce)
{
struct libztex_device *ztex;
unsigned char sendbuf[44];
int i, j, k;
uint32_t *backlog;
int backlog_p = 0, backlog_max;
uint32_t *lastnonce;
uint32_t nonce, noncecnt = 0;
bool overflow, found;
struct libztex_hash_data hdata[GOLDEN_BACKLOG];
if (thr->cgpu->deven == DEV_DISABLED)
return -1;
ztex = thr->cgpu->device_ztex;
memcpy(sendbuf, work->data + 64, 12);
memcpy(sendbuf + 12, work->midstate, 32);
ztex_selectFpga(ztex);
i = libztex_sendHashData(ztex, sendbuf);
if (i < 0) {
// Something wrong happened in send
applog(LOG_ERR, "%s: Failed to send hash data with err %d, retrying", ztex->repr, i);
nmsleep(500);
i = libztex_sendHashData(ztex, sendbuf);
if (i < 0) {
// And there's nothing we can do about it
ztex_disable(thr);
applog(LOG_ERR, "%s: Failed to send hash data with err %d, giving up", ztex->repr, i);
ztex_releaseFpga(ztex);
return -1;
}
}
ztex_releaseFpga(ztex);
applog(LOG_DEBUG, "%s: sent hashdata", ztex->repr);
lastnonce = calloc(1, sizeof(uint32_t)*ztex->numNonces);
if (lastnonce == NULL) {
applog(LOG_ERR, "%s: failed to allocate lastnonce[%d]", ztex->repr, ztex->numNonces);
return -1;
}
/* Add an extra slot for detecting dupes that lie around */
backlog_max = ztex->numNonces * (2 + ztex->extraSolutions);
backlog = calloc(1, sizeof(uint32_t) * backlog_max);
if (backlog == NULL) {
applog(LOG_ERR, "%s: failed to allocate backlog[%d]", ztex->repr, backlog_max);
return -1;
}
overflow = false;
applog(LOG_DEBUG, "%s: entering poll loop", ztex->repr);
while (!(overflow || thr->work_restart)) {
nmsleep(250);
if (thr->work_restart) {
applog(LOG_DEBUG, "%s: New work detected", ztex->repr);
break;
}
ztex_selectFpga(ztex);
i = libztex_readHashData(ztex, &hdata[0]);
if (i < 0) {
// Something wrong happened in read
applog(LOG_ERR, "%s: Failed to read hash data with err %d, retrying", ztex->repr, i);
nmsleep(500);
i = libztex_readHashData(ztex, &hdata[0]);
if (i < 0) {
// And there's nothing we can do about it
ztex_disable(thr);
applog(LOG_ERR, "%s: Failed to read hash data with err %d, giving up", ztex->repr, i);
free(lastnonce);
free(backlog);
ztex_releaseFpga(ztex);
return -1;
}
}
ztex_releaseFpga(ztex);
if (thr->work_restart) {
applog(LOG_DEBUG, "%s: New work detected", ztex->repr);
break;
}
ztex->errorCount[ztex->freqM] *= 0.995;
ztex->errorWeight[ztex->freqM] = ztex->errorWeight[ztex->freqM] * 0.995 + 1.0;
for (i = 0; i < ztex->numNonces; i++) {
nonce = hdata[i].nonce;
#if defined(__BIGENDIAN__) || defined(MIPSEB)
nonce = swab32(nonce);
#endif
if (nonce > noncecnt)
noncecnt = nonce;
if (((0xffffffff - nonce) < (nonce - lastnonce[i])) || nonce < lastnonce[i]) {
applog(LOG_DEBUG, "%s: overflow nonce=%0.8x lastnonce=%0.8x", ztex->repr, nonce, lastnonce[i]);
overflow = true;
} else
lastnonce[i] = nonce;
#if !(defined(__BIGENDIAN__) || defined(MIPSEB))
nonce = swab32(nonce);
#endif
if (!ztex_checkNonce(ztex, work, &hdata[i])) {
thr->cgpu->hw_errors++;
continue;
}
for (j=0; j<=ztex->extraSolutions; j++) {
nonce = hdata[i].goldenNonce[j];
if (nonce > 0) {
found = false;
for (k = 0; k < backlog_max; k++) {
if (backlog[k] == nonce) {
found = true;
break;
}
}
if (!found) {
applog(LOG_DEBUG, "%s: Share found N%dE%d", ztex->repr, i, j);
backlog[backlog_p++] = nonce;
if (backlog_p >= backlog_max)
backlog_p = 0;
#if defined(__BIGENDIAN__) || defined(MIPSEB)
nonce = swab32(nonce);
#endif
work->blk.nonce = 0xffffffff;
submit_nonce(thr, work, nonce);
applog(LOG_DEBUG, "%s: submitted %0.8x", ztex->repr, nonce);
}
}
}
}
}
ztex->errorRate[ztex->freqM] = ztex->errorCount[ztex->freqM] / ztex->errorWeight[ztex->freqM] * (ztex->errorWeight[ztex->freqM] < 100? ztex->errorWeight[ztex->freqM] * 0.01: 1.0);
if (ztex->errorRate[ztex->freqM] > ztex->maxErrorRate[ztex->freqM])
ztex->maxErrorRate[ztex->freqM] = ztex->errorRate[ztex->freqM];
if (!ztex_updateFreq(ztex)) {
// Something really serious happened, so mark this thread as dead!
free(lastnonce);
free(backlog);
return -1;
}
applog(LOG_DEBUG, "%s: exit %1.8X", ztex->repr, noncecnt);
work->blk.nonce = 0xffffffff;
free(lastnonce);
free(backlog);
return noncecnt;
}
static void ztex_statline_before(char *buf, struct cgpu_info *cgpu)
{
if (cgpu->deven == DEV_ENABLED) {
tailsprintf(buf, "%s-%d | ", cgpu->device_ztex->snString, cgpu->device_ztex->fpgaNum+1);
tailsprintf(buf, "%0.1fMHz | ", cgpu->device_ztex->freqM1 * (cgpu->device_ztex->freqM + 1));
}
}
static bool ztex_prepare(struct thr_info *thr)
{
struct timeval now;
struct cgpu_info *cgpu = thr->cgpu;
struct libztex_device *ztex = cgpu->device_ztex;
gettimeofday(&now, NULL);
get_datestamp(cgpu->init, &now);
ztex_selectFpga(ztex);
if (libztex_configureFpga(ztex) != 0) {
libztex_resetFpga(ztex);
ztex_releaseFpga(ztex);
applog(LOG_ERR, "%s: Disabling!", thr->cgpu->device_ztex->repr);
thr->cgpu->deven = DEV_DISABLED;
return true;
}
ztex->freqM = ztex->freqMaxM+1;;
//ztex_updateFreq(ztex);
libztex_setFreq(ztex, ztex->freqMDefault);
ztex_releaseFpga(ztex);
applog(LOG_DEBUG, "%s: prepare", ztex->repr);
return true;
}
static void ztex_shutdown(struct thr_info *thr)
{
if (thr->cgpu->device_ztex != NULL) {
if (thr->cgpu->device_ztex->fpgaNum == 0)
pthread_mutex_destroy(&thr->cgpu->device_ztex->mutex);
applog(LOG_DEBUG, "%s: shutdown", thr->cgpu->device_ztex->repr);
libztex_destroy_device(thr->cgpu->device_ztex);
thr->cgpu->device_ztex = NULL;
}
}
static void ztex_disable(struct thr_info *thr)
{
applog(LOG_ERR, "%s: Disabling!", thr->cgpu->device_ztex->repr);
devices[thr->cgpu->device_id]->deven = DEV_DISABLED;
ztex_shutdown(thr);
}
static int64_t bitforce_get_result(struct thr_info *thr, struct work *work)
{
struct cgpu_info *bitforce = thr->cgpu;
unsigned int delay_time_ms;
struct timeval elapsed;
struct timeval now;
char buf[BITFORCE_BUFSIZ+1];
int amount;
char *pnoncebuf;
uint32_t nonce;
while (1) {
if (unlikely(thr->work_restart))
return 0;
mutex_lock(&bitforce->device_mutex);
usb_write(bitforce, BITFORCE_WORKSTATUS, BITFORCE_WORKSTATUS_LEN, &amount, C_REQUESTWORKSTATUS);
usb_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_GETWORKSTATUS);
mutex_unlock(&bitforce->device_mutex);
cgtime(&now);
timersub(&now, &bitforce->work_start_tv, &elapsed);
if (elapsed.tv_sec >= BITFORCE_LONG_TIMEOUT_S) {
applog(LOG_ERR, "%s%i: took %ldms - longer than %dms",
bitforce->drv->name, bitforce->device_id,
tv_to_ms(elapsed), BITFORCE_LONG_TIMEOUT_MS);
return 0;
}
if (amount > 0 && buf[0] && strncasecmp(buf, "B", 1)) /* BFL does not respond during throttling */
break;
/* if BFL is throttling, no point checking so quickly */
delay_time_ms = (buf[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, "%s%i: took %ldms - longer than %dms",
bitforce->drv->name, bitforce->device_id,
tv_to_ms(elapsed), BITFORCE_TIMEOUT_MS);
dev_error(bitforce, REASON_DEV_OVER_HEAT);
/* Only return if we got nothing after timeout - there still may be results */
if (amount == 0)
return 0;
} else if (!strncasecmp(buf, BITFORCE_EITHER, BITFORCE_EITHER_LEN)) {
/* 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, "%s%i: Wait time changed to: %d, waited %u",
bitforce->drv->name, 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, "%s%i: waited %dms until %s",
bitforce->drv->name, bitforce->device_id,
bitforce->wait_ms, buf);
if (!strncasecmp(buf, BITFORCE_NO_NONCE, BITFORCE_NO_NONCE_MATCH))
return bitforce->nonces; /* No valid nonce found */
else if (!strncasecmp(buf, BITFORCE_IDLE, BITFORCE_IDLE_MATCH))
return 0; /* Device idle */
else if (strncasecmp(buf, BITFORCE_NONCE, BITFORCE_NONCE_LEN)) {
bitforce->hw_errors++;
applog(LOG_WARNING, "%s%i: Error: Get result reports: %s",
bitforce->drv->name, bitforce->device_id, buf);
bitforce_initialise(bitforce, true);
return 0;
}
pnoncebuf = &buf[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, "%s%i: Disabling broken nonce range support",
bitforce->drv->name, 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;
}
static bool bitforce_detect_one(struct libusb_device *dev, struct usb_find_devices *found)
{
char buf[BITFORCE_BUFSIZ+1];
int err, amount;
char *s;
struct timeval init_start, init_now;
int init_sleep, init_count;
bool ident_first;
struct cgpu_info *bitforce = usb_alloc_cgpu(&bitforce_drv, 1);
if (!usb_init(bitforce, dev, found))
goto shin;
// Allow 2 complete attempts if the 1st time returns an unrecognised reply
ident_first = true;
retry:
init_count = 0;
init_sleep = REINIT_TIME_FIRST_MS;
cgtime(&init_start);
reinit:
bitforce_initialise(bitforce, false);
if ((err = usb_write(bitforce, BITFORCE_IDENTIFY, BITFORCE_IDENTIFY_LEN, &amount, C_REQUESTIDENTIFY)) < 0 || amount != BITFORCE_IDENTIFY_LEN) {
applog(LOG_ERR, "%s detect (%s) send identify request failed (%d:%d)",
bitforce->drv->dname, bitforce->device_path, amount, err);
goto unshin;
}
if ((err = usb_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_GETIDENTIFY)) < 0 || amount < 1) {
init_count++;
cgtime(&init_now);
if (us_tdiff(&init_now, &init_start) <= REINIT_TIME_MAX) {
if (init_count == 2) {
applog(LOG_WARNING, "%s detect (%s) 2nd init failed (%d:%d) - retrying",
bitforce->drv->dname, bitforce->device_path, amount, err);
}
nmsleep(init_sleep);
if ((init_sleep * 2) <= REINIT_TIME_MAX_MS)
init_sleep *= 2;
goto reinit;
}
if (init_count > 0)
applog(LOG_WARNING, "%s detect (%s) init failed %d times %.2fs",
bitforce->drv->dname, bitforce->device_path, init_count, tdiff(&init_now, &init_start));
if (err < 0) {
applog(LOG_ERR, "%s detect (%s) error identify reply (%d:%d)",
bitforce->drv->dname, bitforce->device_path, amount, err);
} else {
applog(LOG_ERR, "%s detect (%s) empty identify reply (%d)",
bitforce->drv->dname, bitforce->device_path, amount);
}
goto unshin;
}
buf[amount] = '\0';
if (unlikely(!strstr(buf, "SHA256"))) {
if (ident_first) {
applog(LOG_WARNING, "%s detect (%s) didn't recognise '%s' trying again ...",
bitforce->drv->dname, bitforce->device_path, buf);
ident_first = false;
goto retry;
}
applog(LOG_ERR, "%s detect (%s) didn't recognise '%s' on 2nd attempt",
bitforce->drv->dname, bitforce->device_path, buf);
goto unshin;
}
if (strstr(buf, "SHA256 SC")) {
#ifdef USE_BFLSC
applog(LOG_DEBUG, "SC device detected, will defer to BFLSC driver");
#else
applog(LOG_WARNING, "SC device detected but no BFLSC support compiled in!");
#endif
goto unshin;
}
if (likely((!memcmp(buf, ">>>ID: ", 7)) && (s = strstr(buf + 3, ">>>")))) {
s[0] = '\0';
bitforce->name = strdup(buf + 7);
} else {
bitforce->name = (char *)blank;
}
// We have a real BitForce!
applog(LOG_DEBUG, "%s (%s) identified as: '%s'",
bitforce->drv->dname, bitforce->device_path, bitforce->name);
/* 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 (!add_cgpu(bitforce))
goto unshin;
update_usb_stats(bitforce);
mutex_init(&bitforce->device_mutex);
return true;
unshin:
usb_uninit(bitforce);
shin:
if (bitforce->name != blank) {
free(bitforce->name);
bitforce->name = NULL;
}
bitforce = usb_free_cgpu(bitforce);
return false;
}
static int64_t ztex_scanhash(struct thr_info *thr, struct work *work,
__maybe_unused int64_t max_nonce)
{
struct libztex_device *ztex;
unsigned char sendbuf[44];
int i, j, k;
uint32_t *backlog;
int backlog_p = 0, backlog_max;
uint32_t *lastnonce;
uint32_t nonce, noncecnt = 0;
bool overflow, found;
struct libztex_hash_data hdata[GOLDEN_BACKLOG];
if (thr->cgpu->deven == DEV_DISABLED)
return -1;
ztex = thr->cgpu->device_ztex;
memcpy(sendbuf, work->data + 64, 12);
memcpy(sendbuf + 12, work->midstate, 32);
ztex_selectFpga(ztex);
i = libztex_sendHashData(ztex, sendbuf);
if (i < 0) {
// Something wrong happened in send
applog(LOG_ERR, "%s: Failed to send hash data with err %d, retrying", ztex->repr, i);
nmsleep(500);
i = libztex_sendHashData(ztex, sendbuf);
if (i < 0) {
// And there's nothing we can do about it
ztex_disable(thr);
applog(LOG_ERR, "%s: Failed to send hash data with err %d, giving up", ztex->repr, i);
ztex_releaseFpga(ztex);
return -1;
}
}
ztex_releaseFpga(ztex);
applog(LOG_DEBUG, "%s: sent hashdata", ztex->repr);
lastnonce = calloc(1, sizeof(uint32_t)*ztex->numNonces);
if (lastnonce == NULL) {
applog(LOG_ERR, "%s: failed to allocate lastnonce[%d]", ztex->repr, ztex->numNonces);
return -1;
}
/* Add an extra slot for detecting dupes that lie around */
backlog_max = ztex->numNonces * (2 + ztex->extraSolutions);
backlog = calloc(1, sizeof(uint32_t) * backlog_max);
if (backlog == NULL) {
applog(LOG_ERR, "%s: failed to allocate backlog[%d]", ztex->repr, backlog_max);
return -1;
}
overflow = false;
int count = 0;
int validNonces = 0;
double errorCount = 0;
applog(LOG_DEBUG, "%s: entering poll loop", ztex->repr);
while (!(overflow || thr->work_restart)) {
count++;
int sleepcount = 0;
while (thr->work_restart == 0 && sleepcount < 25) {
nmsleep(10);
sleepcount += 1;
}
if (thr->work_restart) {
applog(LOG_DEBUG, "%s: New work detected", ztex->repr);
break;
}
ztex_selectFpga(ztex);
i = libztex_readHashData(ztex, &hdata[0]);
if (i < 0) {
// Something wrong happened in read
applog(LOG_ERR, "%s: Failed to read hash data with err %d, retrying", ztex->repr, i);
nmsleep(500);
i = libztex_readHashData(ztex, &hdata[0]);
if (i < 0) {
// And there's nothing we can do about it
ztex_disable(thr);
applog(LOG_ERR, "%s: Failed to read hash data with err %d, giving up", ztex->repr, i);
free(lastnonce);
free(backlog);
ztex_releaseFpga(ztex);
return -1;
}
}
ztex_releaseFpga(ztex);
if (thr->work_restart) {
applog(LOG_DEBUG, "%s: New work detected", ztex->repr);
break;
}
ztex->errorCount[ztex->freqM] *= 0.995;
ztex->errorWeight[ztex->freqM] = ztex->errorWeight[ztex->freqM] * 0.995 + 1.0;
for (i = 0; i < ztex->numNonces; i++) {
nonce = hdata[i].nonce;
if (nonce > noncecnt)
noncecnt = nonce;
if (((0xffffffff - nonce) < (nonce - lastnonce[i])) || nonce < lastnonce[i]) {
applog(LOG_DEBUG, "%s: overflow nonce=%0.8x lastnonce=%0.8x", ztex->repr, nonce, lastnonce[i]);
overflow = true;
} else
lastnonce[i] = nonce;
if (ztex_checkNonce(work, nonce) != (hdata->hash7 + 0x5be0cd19)) {
applog(LOG_DEBUG, "%s: checkNonce failed for %0.8X", ztex->repr, nonce);
// do not count errors in the first 500ms after sendHashData (2x250 wait time)
if (count > 2) {
thr->cgpu->hw_errors++;
errorCount += (1.0 / ztex->numNonces);
}
}
else
validNonces++;
for (j=0; j<=ztex->extraSolutions; j++) {
nonce = hdata[i].goldenNonce[j];
if (nonce == ztex->offsNonces) {
continue;
}
// precheck the extraSolutions since they often fail
if (j > 0 && ztex_checkNonce(work, nonce) != 0) {
continue;
}
found = false;
for (k = 0; k < backlog_max; k++) {
if (backlog[k] == nonce) {
found = true;
break;
}
}
if (!found) {
applog(LOG_DEBUG, "%s: Share found N%dE%d", ztex->repr, i, j);
backlog[backlog_p++] = nonce;
if (backlog_p >= backlog_max)
backlog_p = 0;
work->blk.nonce = 0xffffffff;
submit_nonce(thr, work, nonce);
applog(LOG_DEBUG, "%s: submitted %0.8x", ztex->repr, nonce);
}
}
}
}
// only add the errorCount if we had at least some valid nonces or
// had no valid nonces in the last round
if (errorCount > 0.0) {
if (ztex->nonceCheckValid > 0 && validNonces == 0) {
applog(LOG_ERR, "%s: resetting %.1f errors", ztex->repr, errorCount);
}
else {
ztex->errorCount[ztex->freqM] += errorCount;
}
}
// remember the number of valid nonces for the check in the next round
ztex->nonceCheckValid = validNonces;
ztex->errorRate[ztex->freqM] = ztex->errorCount[ztex->freqM] / ztex->errorWeight[ztex->freqM] * (ztex->errorWeight[ztex->freqM] < 100? ztex->errorWeight[ztex->freqM] * 0.01: 1.0);
if (ztex->errorRate[ztex->freqM] > ztex->maxErrorRate[ztex->freqM])
ztex->maxErrorRate[ztex->freqM] = ztex->errorRate[ztex->freqM];
if (!ztex_updateFreq(ztex)) {
// Something really serious happened, so mark this thread as dead!
free(lastnonce);
free(backlog);
return -1;
}
applog(LOG_DEBUG, "%s: exit %1.8X", ztex->repr, noncecnt);
work->blk.nonce = 0xffffffff;
free(lastnonce);
free(backlog);
return noncecnt;
}
static int64_t bitfury_scanHash(struct thr_info *thr)
{
static struct bitfury_device *devices; // TODO Move somewhere to appropriate place
int chip_n;
int chip;
uint64_t hashes = 0;
struct timeval now;
unsigned char line[2048];
int short_stat = 10;
static time_t short_out_t;
int long_stat = 1800;
static time_t long_out_t;
int long_long_stat = 60 * 30;
static time_t long_long_out_t;
static first = 0; //TODO Move to detect()
int i;
devices = thr->cgpu->devices;
chip_n = thr->cgpu->chip_n;
if (!first) {
for (i = 0; i < chip_n; i++) {
devices[i].osc6_bits = 54;
}
for (i = 0; i < chip_n; i++) {
send_reinit(devices[i].slot, devices[i].fasync, devices[i].osc6_bits);
}
}
first = 1;
for (chip = 0; chip < chip_n; chip++) {
devices[chip].job_switched = 0;
if(!devices[chip].work) {
devices[chip].work = get_queued(thr->cgpu);
if (devices[chip].work == NULL) {
return 0;
}
work_to_payload(&(devices[chip].payload), devices[chip].work);
}
}
libbitfury_sendHashData(devices, chip_n);
nmsleep(5);
cgtime(&now);
chip = 0;
for (;chip < chip_n; chip++) {
if (devices[chip].job_switched) {
int i,j;
int *res = devices[chip].results;
struct work *work = devices[chip].work;
struct work *owork = devices[chip].owork;
struct work *o2work = devices[chip].o2work;
i = devices[chip].results_n;
for (j = i - 1; j >= 0; j--) {
if (owork) {
submit_nonce(thr, owork, bswap_32(res[j]));
devices[chip].stat_ts[devices[chip].stat_counter++] =
now.tv_sec;
if (devices[chip].stat_counter == BITFURY_STAT_N) {
devices[chip].stat_counter = 0;
}
}
if (o2work) {
// TEST
//submit_nonce(thr, owork, bswap_32(res[j]));
}
}
devices[chip].results_n = 0;
devices[chip].job_switched = 0;
if (devices[chip].old_nonce && o2work) {
submit_nonce(thr, o2work, bswap_32(devices[chip].old_nonce));
i++;
}
if (devices[chip].future_nonce) {
submit_nonce(thr, work, bswap_32(devices[chip].future_nonce));
i++;
}
if (o2work)
work_completed(thr->cgpu, o2work);
devices[chip].o2work = devices[chip].owork;
devices[chip].owork = devices[chip].work;
devices[chip].work = NULL;
hashes += 0xffffffffull * i;
}
}
if (now.tv_sec - short_out_t > short_stat) {
int shares_first = 0, shares_last = 0, shares_total = 0;
char stat_lines[32][256] = {0};
int len, k;
double gh[32][8] = {0};
double ghsum = 0, gh1h = 0, gh2h = 0;
unsigned strange_counter = 0;
for (chip = 0; chip < chip_n; chip++) {
int shares_found = calc_stat(devices[chip].stat_ts, short_stat, now);
double ghash;
len = strlen(stat_lines[devices[chip].slot]);
ghash = shares_to_ghashes(shares_found, short_stat);
gh[devices[chip].slot][chip & 0x07] = ghash;
snprintf(stat_lines[devices[chip].slot] + len, 256 - len, "%.1f-%3.0f ", ghash, devices[chip].mhz);
if(short_out_t && ghash < 0.5) {
applog(LOG_WARNING, "Chip_id %d FREQ CHANGE\n", chip);
send_freq(devices[chip].slot, devices[chip].fasync, devices[chip].osc6_bits - 1);
nmsleep(1);
send_freq(devices[chip].slot, devices[chip].fasync, devices[chip].osc6_bits);
}
shares_total += shares_found;
shares_first += chip < 4 ? shares_found : 0;
shares_last += chip > 3 ? shares_found : 0;
strange_counter += devices[chip].strange_counter;
devices[chip].strange_counter = 0;
}
sprintf(line, "vvvvwww SHORT stat %ds: wwwvvvv", short_stat);
applog(LOG_WARNING, line);
sprintf(line, "stranges: %u", strange_counter);
applog(LOG_WARNING, line);
for(i = 0; i < 32; i++)
if(strlen(stat_lines[i])) {
len = strlen(stat_lines[i]);
ghsum = 0;
gh1h = 0;
gh2h = 0;
for(k = 0; k < 4; k++) {
gh1h += gh[i][k];
gh2h += gh[i][k+4];
ghsum += gh[i][k] + gh[i][k+4];
}
snprintf(stat_lines[i] + len, 256 - len, "- %2.1f + %2.1f = %2.1f slot %i ", gh1h, gh2h, ghsum, i);
applog(LOG_WARNING, stat_lines[i]);
}
short_out_t = now.tv_sec;
}
if (now.tv_sec - long_out_t > long_stat) {
int shares_first = 0, shares_last = 0, shares_total = 0;
char stat_lines[32][256] = {0};
int len, k;
double gh[32][8] = {0};
double ghsum = 0, gh1h = 0, gh2h = 0;
for (chip = 0; chip < chip_n; chip++) {
int shares_found = calc_stat(devices[chip].stat_ts, long_stat, now);
double ghash;
len = strlen(stat_lines[devices[chip].slot]);
ghash = shares_to_ghashes(shares_found, long_stat);
gh[devices[chip].slot][chip & 0x07] = ghash;
snprintf(stat_lines[devices[chip].slot] + len, 256 - len, "%.1f-%3.0f ", ghash, devices[chip].mhz);
shares_total += shares_found;
shares_first += chip < 4 ? shares_found : 0;
shares_last += chip > 3 ? shares_found : 0;
}
sprintf(line, "!!!_________ LONG stat %ds: ___________!!!", long_stat);
applog(LOG_WARNING, line);
for(i = 0; i < 32; i++)
if(strlen(stat_lines[i])) {
len = strlen(stat_lines[i]);
ghsum = 0;
gh1h = 0;
gh2h = 0;
for(k = 0; k < 4; k++) {
gh1h += gh[i][k];
gh2h += gh[i][k+4];
ghsum += gh[i][k] + gh[i][k+4];
}
snprintf(stat_lines[i] + len, 256 - len, "- %2.1f + %2.1f = %2.1f slot %i ", gh1h, gh2h, ghsum, i);
applog(LOG_WARNING, stat_lines[i]);
}
long_out_t = now.tv_sec;
}
return hashes;
}
static bool bitforce_detect_one(struct libusb_device *dev, struct usb_find_devices *found)
{
char buf[BITFORCE_BUFSIZ+1];
char devpath[20];
int err, amount;
char *s;
struct timeval init_start, init_now;
int init_sleep, init_count;
bool ident_first;
struct cgpu_info *bitforce = NULL;
bitforce = calloc(1, sizeof(*bitforce));
bitforce->drv = &bitforce_drv;
bitforce->deven = DEV_ENABLED;
bitforce->threads = 1;
if (!usb_init(bitforce, dev, found)) {
applog(LOG_ERR, "%s detect (%d:%d) failed to initialise (incorrect device?)",
bitforce->drv->dname,
(int)(bitforce->usbinfo.bus_number),
(int)(bitforce->usbinfo.device_address));
goto shin;
}
sprintf(devpath, "%d:%d",
(int)(bitforce->usbinfo.bus_number),
(int)(bitforce->usbinfo.device_address));
// Allow 2 complete attempts if the 1st time returns an unrecognised reply
ident_first = true;
retry:
init_count = 0;
init_sleep = REINIT_TIME_FIRST_MS;
gettimeofday(&init_start, NULL);
reinit:
bitforce_initialise(bitforce, false);
if ((err = usb_write(bitforce, BITFORCE_IDENTIFY, BITFORCE_IDENTIFY_LEN, &amount, C_REQUESTIDENTIFY)) < 0 || amount != BITFORCE_IDENTIFY_LEN) {
applog(LOG_ERR, "%s detect (%s) send identify request failed (%d:%d)",
bitforce->drv->dname, devpath, amount, err);
goto unshin;
}
if ((err = usb_ftdi_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_GETIDENTIFY)) < 0 || amount < 1) {
init_count++;
gettimeofday(&init_now, NULL);
if (us_tdiff(&init_now, &init_start) <= REINIT_TIME_MAX) {
if (init_count == 2) {
applog(LOG_WARNING, "%s detect (%s) 2nd init failed (%d:%d) - retrying",
bitforce->drv->dname, devpath, amount, err);
}
nmsleep(init_sleep);
if ((init_sleep * 2) <= REINIT_TIME_MAX_MS)
init_sleep *= 2;
goto reinit;
}
if (init_count > 0)
applog(LOG_WARNING, "%s detect (%s) init failed %d times %.2fs",
bitforce->drv->dname, devpath, init_count, tdiff(&init_now, &init_start));
if (err < 0) {
applog(LOG_ERR, "%s detect (%s) error identify reply (%d:%d)",
bitforce->drv->dname, devpath, amount, err);
} else {
applog(LOG_ERR, "%s detect (%s) empty identify reply (%d)",
bitforce->drv->dname, devpath, amount);
}
goto unshin;
}
buf[amount] = '\0';
if (unlikely(!strstr(buf, "SHA256"))) {
if (ident_first) {
applog(LOG_WARNING, "%s detect (%s) didn't recognise '%s' trying again ...",
bitforce->drv->dname, devpath, buf);
ident_first = false;
goto retry;
}
applog(LOG_ERR, "%s detect (%s) didn't recognise '%s' on 2nd attempt",
bitforce->drv->dname, devpath, buf);
goto unshin;
}
if (likely((!memcmp(buf, ">>>ID: ", 7)) && (s = strstr(buf + 3, ">>>")))) {
s[0] = '\0';
bitforce->name = strdup(buf + 7);
} else {
bitforce->name = (char *)blank;
}
// We have a real BitForce!
applog(LOG_DEBUG, "%s (%s) identified as: '%s'",
bitforce->drv->dname, devpath, bitforce->name);
/* 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;
}
bitforce->device_path = strdup(devpath);
if (!add_cgpu(bitforce))
goto unshin;
update_usb_stats(bitforce);
mutex_init(&bitforce->device_mutex);
return true;
unshin:
usb_uninit(bitforce);
shin:
free(bitforce->device_path);
if (bitforce->name != blank)
free(bitforce->name);
if (bitforce->drv->copy)
free(bitforce->drv);
free(bitforce);
return false;
}
static int64_t ztex_scanhash(struct thr_info *thr, struct work *work,
__maybe_unused int64_t max_nonce)
{
// int numbytes = 80; // KRAMBLE 80 byte protocol
int numbytes = 76; // KRAMBLE 76 byte protocol
struct libztex_device *ztex;
unsigned char sendbuf[80]; // KRAMBLE
int i, j, k;
uint32_t *backlog;
int backlog_p = 0, backlog_max;
uint32_t *lastnonce;
uint32_t nonce, noncecnt = 0;
bool overflow, found;
struct libztex_hash_data hdata[GOLDEN_BACKLOG];
if (thr->cgpu->deven == DEV_DISABLED)
return -1;
ztex = thr->cgpu->device_ztex;
// memcpy(sendbuf, work->data + 64, 12);
// memcpy(sendbuf + 12, work->midstate, 32);
memcpy(sendbuf, work->data, numbytes); // KRAMBLE
ztex_selectFpga(ztex);
i = libztex_sendHashData(ztex, sendbuf, numbytes);
if (i < 0) {
// Something wrong happened in send
applog(LOG_ERR, "%s: Failed to send hash data with err %d, retrying", ztex->repr, i);
nmsleep(500);
i = libztex_sendHashData(ztex, sendbuf, numbytes);
if (i < 0) {
// And there's nothing we can do about it
ztex_disable(thr);
applog(LOG_ERR, "%s: Failed to send hash data with err %d, giving up", ztex->repr, i);
ztex_releaseFpga(ztex);
return -1;
}
}
ztex_releaseFpga(ztex);
#if 0 // KRAMBLE
char *data = bin2hex(work->data, sizeof(work->data));
applog(LOG_INFO, "%s: sent data %s", ztex->repr, data);
#endif
lastnonce = calloc(1, sizeof(uint32_t)*ztex->numNonces);
if (lastnonce == NULL) {
applog(LOG_ERR, "%s: failed to allocate lastnonce[%d]", ztex->repr, ztex->numNonces);
return -1;
}
/* Add an extra slot for detecting dupes that lie around */
backlog_max = ztex->numNonces * (2 + ztex->extraSolutions);
backlog = calloc(1, sizeof(uint32_t) * backlog_max);
if (backlog == NULL) {
applog(LOG_ERR, "%s: failed to allocate backlog[%d]", ztex->repr, backlog_max);
return -1;
}
overflow = false;
int count = 0;
int validNonces = 0;
double errorCount = 0;
applog(LOG_DEBUG, "%s: entering poll loop", ztex->repr);
while (!(overflow || thr->work_restart)) {
count++;
int sleepcount = 0;
while (thr->work_restart == 0 && sleepcount < 25) {
nmsleep(10);
sleepcount += 1;
}
if (thr->work_restart) {
applog(LOG_DEBUG, "%s: New work detected", ztex->repr);
break;
}
ztex_selectFpga(ztex);
i = libztex_readHashData(ztex, &hdata[0]);
if (i < 0) {
// Something wrong happened in read
applog(LOG_ERR, "%s: Failed to read hash data with err %d, retrying", ztex->repr, i);
nmsleep(500);
i = libztex_readHashData(ztex, &hdata[0]);
if (i < 0) {
// And there's nothing we can do about it
ztex_disable(thr);
applog(LOG_ERR, "%s: Failed to read hash data with err %d, giving up", ztex->repr, i);
free(lastnonce);
free(backlog);
ztex_releaseFpga(ztex);
return -1;
}
}
ztex_releaseFpga(ztex);
if (thr->work_restart) {
applog(LOG_DEBUG, "%s: New work detected", ztex->repr);
break;
}
ztex->errorCount[ztex->freqM] *= 0.995;
ztex->errorWeight[ztex->freqM] = ztex->errorWeight[ztex->freqM] * 0.995 + 1.0;
for (i = 0; i < ztex->numNonces; i++) {
nonce = hdata[i].nonce;
//if (nonce > noncecnt) by smartbitcoin
// fix the verilog bug which send INT_MAX as nonce sometime.
// NB: cgminer , nonce counter was int64, but ztex driver was int32.
if( nonce > noncecnt && nonce < 1<<28 )
noncecnt = nonce;
// KRAMBLE don't overflow if nonce == 0 (eg if fpga is not hashing)
if ( (((0xffffffff - nonce) < (nonce - lastnonce[i])) || nonce < lastnonce[i]) && nonce ) {
applog(LOG_INFO, "%s: overflow nonce=%08x lastnonce=%08x", ztex->repr, nonce, lastnonce[i]); // KRAMBLE not in production ??
// applog(LOG_DEBUG, "%s: overflow nonce=%08x lastnonce=%08x", ztex->repr, nonce, lastnonce[i]);
// overflow = true; // KRAMBLE disabled as it should not happen at litecoin hash rates (except when broken
// so leave warning message enabled)
} else
lastnonce[i] = nonce;
// KRAMBLE try forcing overflow every so often to see if this fixes DIFF & SICK problems
// if (nonce > 0x00040000) // Overflow every 256k nonces (a few times a minute, depending on hash rate)
if (nonce > 0x00100000) // Overflow every 1M nonces (single core needs larger range to avoid duplicates)
{
// applog(LOG_INFO, "%s: force overflow nonce=%08x lastnonce=%08x", ztex->repr, nonce, lastnonce[i]); // KRAMBLE not in production
overflow = true;
}
if (ztex_checkNonce(work, nonce) != (hdata->hash7)) {
applog(LOG_INFO, "%s: checkNonce failed for %08X hash7 %08X", ztex->repr, nonce, hdata->hash7); // KRAMBLE not in production ??
// applog(LOG_DEBUG, "%s: checkNonce failed for %08X", ztex->repr, nonce);
// do not count errors in the first 500ms after sendHashData (2x250 wait time)
if (count > 2) {
thr->cgpu->hw_errors++;
errorCount += (1.0 / ztex->numNonces);
}
}
else
validNonces++;
for (j=0; j<=ztex->extraSolutions; j++) {
nonce = hdata[i].goldenNonce[j];
if (nonce == ztex->offsNonces) {
continue;
}
// precheck the extraSolutions since they often fail
if (j > 0 && ztex_checkNonce(work, nonce) != 0) {
continue;
}
found = false;
for (k = 0; k < backlog_max; k++) {
if (backlog[k] == nonce) {
found = true;
break;
}
}
if (!found) {
applog(LOG_INFO, "%s: Share found %08x", ztex->repr, nonce); // KRAMBLE useful to show its working
// applog(LOG_DEBUG, "%s: Share found N%dE%d", ztex->repr, i, j);
backlog[backlog_p++] = nonce;
if (backlog_p >= backlog_max)
backlog_p = 0;
work->blk.nonce = 0xffffffff;
submit_nonce(thr, work, nonce);
applog(LOG_DEBUG, "%s: submitted %08x", ztex->repr, nonce);
}
}
}
}
// only add the errorCount if we had at least some valid nonces or
// had no valid nonces in the last round
if (errorCount > 0.0) {
if (ztex->nonceCheckValid > 0 && validNonces == 0) {
applog(LOG_ERR, "%s: resetting %.1f errors", ztex->repr, errorCount);
}
else {
ztex->errorCount[ztex->freqM] += errorCount;
}
}
// remember the number of valid nonces for the check in the next round
ztex->nonceCheckValid = validNonces;
ztex->errorRate[ztex->freqM] = ztex->errorCount[ztex->freqM] / ztex->errorWeight[ztex->freqM] * (ztex->errorWeight[ztex->freqM] < 100? ztex->errorWeight[ztex->freqM] * 0.01: 1.0);
if (ztex->errorRate[ztex->freqM] > ztex->maxErrorRate[ztex->freqM])
ztex->maxErrorRate[ztex->freqM] = ztex->errorRate[ztex->freqM];
// KRAMBLE Disable ztex_updateFreq if lockClock flag set (ie --ztex-clock set initial and max freq to the same value)
if (!ztex->lockClock) {
if (!ztex_updateFreq(ztex)) {
// Something really serious happened, so mark this thread as dead!
free(lastnonce);
free(backlog);
return -1;
}
}
applog(LOG_DEBUG, "%s: exit %1.8X", ztex->repr, noncecnt);
work->blk.nonce = 0xffffffff;
free(lastnonce);
free(backlog);
return noncecnt;
}