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driver-cointerra.c
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/*
* Copyright 2013-2014 Con Kolivas
* Copyright 2014 Luke Dashjr
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#include "config.h"
#include <string.h>
#include "miner.h"
#include "deviceapi.h"
#include "driver-cointerra.h"
#include "lowlevel.h"
#include "lowl-usb.h"
#include <math.h>
static const unsigned cointerra_desired_roll = 60;
static const unsigned long cointerra_latest_result_usecs = (10 * 1000000);
static const unsigned cointerra_max_nonce_diff = 0x20;
#define COINTERRA_USB_TIMEOUT 500
#define COINTERRA_PACKET_SIZE 0x40
#define COINTERRA_START_SEQ 0x5a,0x5a
#define COINTERRA_MSG_SIZE (COINTERRA_PACKET_SIZE - sizeof(cointerra_startseq))
#define COINTERRA_MSGBODY_SIZE (COINTERRA_MSG_SIZE - 1)
BFG_REGISTER_DRIVER(cointerra_drv)
static const struct bfg_set_device_definition cointerra_set_device_funcs[];
enum cointerra_msg_type_out {
CMTO_RESET = 1,
CMTO_WORK = 2,
CMTO_REQUEST = 4,
CMTO_HWERR = 5,
CMTO_LEDCTL = 6,
CMTO_HASHRATE = 7,
CMTO_GET_INFO = 0x21,
};
static const uint8_t cointerra_startseq[] = {COINTERRA_START_SEQ};
static const char *cointerra_hdr = "ZZ";
static void cta_gen_message(char *msg, char type)
{
memset(msg, 0, CTA_MSG_SIZE);
memcpy(msg, cointerra_hdr, 2);
msg[CTA_MSG_TYPE] = type;
}
/* Find the number of leading zero bits in diff */
static uint8_t diff_to_bits(double diff)
{
uint64_t diff64;
uint8_t i;
diff *= (double)2147483648.0;
if (diff > 0x8000000000000000ULL)
diff = 0x8000000000000000ULL;
/* Convert it to an integer */
diff64 = diff;
for (i = 0; diff64; i++, diff64 >>= 1);
return i;
}
static double bits_to_diff(uint8_t bits)
{
double ret = 1.0;
if (likely(bits > 32))
ret *= 1ull << (bits - 32);
else if (unlikely(bits < 32))
ret /= 1ull << (32 - bits);
return ret;
}
static bool cta_reset_init(char *buf)
{
return ((buf[CTA_MSG_TYPE] == CTA_RECV_RDONE) && ((buf[CTA_RESET_TYPE]&0x3) == CTA_RESET_INIT));
}
static char *mystrstr(char *haystack, int size, const char *needle)
{
int loop = 0;
while (loop < (size-1)) {
if ((haystack[loop] == needle[0])&&
(haystack[loop+1] == needle[1]))
return &haystack[loop];
loop++;
}
return NULL;
}
static
bool cta_open(struct lowl_usb_endpoint * const ep, const char * const repr, struct cointerra_info * const devstate)
{
int amount, offset = 0;
char buf[CTA_MSG_SIZE];
cgtimer_t ts_start;
bool ret = false;
applog(LOG_INFO, "CTA_OPEN");
cta_gen_message(buf, CTA_SEND_RESET);
// set the initial difficulty
buf[CTA_RESET_TYPE] = CTA_RESET_INIT | CTA_RESET_DIFF;
buf[CTA_RESET_DIFF] = diff_to_bits(CTA_INIT_DIFF);
buf[CTA_RESET_LOAD] = devstate->set_load ?: 255;
buf[CTA_RESET_PSLOAD] = 0;
amount = usb_write(ep, buf, CTA_MSG_SIZE);
if (amount != CTA_MSG_SIZE) {
applog(LOG_INFO, "Write error %s, wrote %d of %d",
bfg_strerror(errno, BST_ERRNO),
amount, CTA_MSG_SIZE);
return ret;
}
cgtimer_time(&ts_start);
/* Read from the device for up to 2 seconds discarding any data that
* doesn't match a reset complete acknowledgement. */
while (42) {
cgtimer_t ts_now, ts_diff;
char *msg;
cgtimer_time(&ts_now);
cgtimer_sub(&ts_now, &ts_start, &ts_diff);
if (cgtimer_to_ms(&ts_diff) > 2000) {
applog(LOG_DEBUG, "%s: Timed out waiting for response to reset init", repr);
break;
}
amount = usb_read(ep, buf + offset, CTA_MSG_SIZE - offset);
if (amount != (CTA_MSG_SIZE - offset) && amount != 0) {
applog(LOG_INFO, "%s: Read error %s, read %d",
repr, bfg_strerror(errno, BST_ERRNO), amount);
break;
}
if (!amount)
continue;
msg = mystrstr(buf, amount, cointerra_hdr);
if (!msg) {
/* Keep the last byte in case it's the first byte of
* the 2 byte header. */
offset = 1;
memmove(buf, buf + amount - 1, offset);
continue;
}
if (msg > buf) {
/* length of message = offset for next usb_read after moving */
offset = CTA_MSG_SIZE - (msg - buf);
memmove(buf, msg, offset);
continue;
}
/* We have a full sized message starting with the header now */
if (cta_reset_init(buf)) {
/* We can't store any other data returned with this
* reset since we have not allocated any memory for
* a cointerra_info structure yet. */
applog(LOG_INFO, "%s: Successful reset init received", repr);
ret = true;
break;
}
}
return ret;
}
static
bool cointerra_open(const struct lowlevel_device_info * const info, const char * const repr, struct libusb_device_handle ** const usbh_p, struct lowl_usb_endpoint ** const ep_p, struct cointerra_info * const devstate)
{
int e;
if (libusb_open(info->lowl_data, usbh_p))
applogr(false, LOG_DEBUG, "%s: USB open failed on %s",
cointerra_drv.dname, info->devid);
if ( (e = libusb_set_configuration(*usbh_p, 1)) )
return_via_applog(fail, , LOG_ERR, "%s: Failed to %s on %s: %s", repr, "set configuration 1", info->devid, bfg_strerror(e, BST_LIBUSB));
if ( (e = libusb_claim_interface(*usbh_p, 0)) )
return_via_applog(fail, , LOG_ERR, "%s: Failed to %s on %s: %s", repr, "claim interface 0", info->devid, bfg_strerror(e, BST_LIBUSB));
*ep_p = usb_open_ep_pair(*usbh_p, LIBUSB_ENDPOINT_IN | 1, 64, LIBUSB_ENDPOINT_OUT | 1, 64);
if (!*ep_p)
{
applog(LOG_DEBUG, "%s: Endpoint open failed on %s",
cointerra_drv.dname, info->devid);
fail:
libusb_close(*usbh_p);
*usbh_p = NULL;
return false;
}
if (!cta_open(*ep_p, repr, devstate))
{
usb_close_ep(*ep_p);
*ep_p = NULL;
goto fail;
}
return true;
}
static void cta_clear_work(struct cgpu_info *cgpu)
{
struct work *work, *tmp;
wr_lock(&cgpu->qlock);
HASH_ITER(hh, cgpu->queued_work, work, tmp) {
__work_completed(cgpu, work);
free_work(work);
}
wr_unlock(&cgpu->qlock);
}
static void cta_close(struct cgpu_info *cointerra)
{
struct cointerra_info *info = cointerra->device_data;
if (info->ep)
{
/* Open does the same reset init followed by response as is required to
* close the device. */
if (!cta_open(info->ep, cointerra->dev_repr, info)) {
applog(LOG_INFO, "%s %d: Reset on close failed", cointerra->drv->name,
cointerra->device_id);
}
}
mutex_destroy(&info->lock);
mutex_destroy(&info->sendlock);
/* Don't free info here to avoid trying to access dereferenced members
* once a device is unplugged. */
cta_clear_work(cointerra);
}
static void cta_parse_info(struct cgpu_info *, struct cointerra_info *, char *);
static void msg_from_hu16(char *, int, uint16_t);
static
bool cointerra_wait_for_info(struct cointerra_info * const ctainfo, struct lowl_usb_endpoint * const ep)
{
char buf[CTA_MSG_SIZE];
int amount;
cta_gen_message(buf, CTA_SEND_REQUEST);
msg_from_hu16(buf, CTA_REQ_MSGTYPE, CTA_RECV_INFO);
msg_from_hu16(buf, CTA_REQ_INTERVAL, 0);
amount = usb_write(ep, buf, CTA_MSG_SIZE);
if (amount != CTA_MSG_SIZE)
return false;
do {
amount = usb_read(ep, buf, CTA_MSG_SIZE);
if (amount != CTA_MSG_SIZE)
applogr(false, LOG_ERR, "%s: Read error %s, read %d",
__func__, bfg_strerror(errno, BST_ERRNO), amount);
if (memcmp(buf, cointerra_hdr, 2))
applogr(false, LOG_ERR, "%s: Packet header mismatch", __func__);
} while (buf[CTA_MSG_TYPE] != CTA_RECV_INFO);
cta_parse_info(NULL, ctainfo, buf);
return true;
}
static
bool cointerra_lowl_probe(const struct lowlevel_device_info * const info)
{
struct cointerra_info ctainfo = { .set_load = 0, };
struct libusb_device_handle *usbh;
struct lowl_usb_endpoint *ep;
bool b;
if (info->lowl != &lowl_usb)
{
bfg_probe_result_flags = BPR_WRONG_DEVTYPE;
return false;
}
if (!cointerra_open(info, cointerra_drv.dname, &usbh, &ep, &ctainfo))
return false;
mutex_init(&ctainfo.lock);
b = cointerra_wait_for_info(&ctainfo, ep);
mutex_destroy(&ctainfo.lock);
usb_close_ep(ep);
libusb_close(usbh);
if (!b)
return false;
applog(LOG_DEBUG, "%s: Found %lu cores on %s",
__func__, (unsigned long)ctainfo.cores, info->devid);
libusb_device * const usbdev = info->lowl_data;
if (bfg_claim_libusb(&cointerra_drv, true, usbdev))
return false;
struct cgpu_info * const dev = malloc(sizeof(*dev));
*dev = (struct cgpu_info){
.drv = &cointerra_drv,
.set_device_funcs = cointerra_set_device_funcs,
.procs = ctainfo.cores,
.device_data = lowlevel_ref(info),
.threads = 1,
.device_path = strdup(info->devid),
.dev_manufacturer = maybe_strdup(info->manufacturer),
.dev_product = maybe_strdup(info->product),
.dev_serial = maybe_strdup(info->serial),
.deven = DEV_ENABLED,
};
const bool rv = add_cgpu(dev);
applog(LOG_INFO, "%s: Successfully set up %s",
cointerra_drv.dname, dev->dev_repr);
return rv;
}
static
void cointerra_set_queue_full(struct cgpu_info * const dev, const bool nv)
{
if (dev->thr[0]->queue_full == nv)
return;
for_each_managed_proc(proc, dev)
proc->thr[0]->queue_full = nv;
}
static
bool cointerra_lowl_match(const struct lowlevel_device_info * const info)
{
return lowlevel_match_lowlproduct(info, &lowl_usb, "GoldStrike");
}
/* This function will remove a work item from the hashtable if it matches the
* id in work->subid and return a pointer to the work but it will not free the
* work. It may return NULL if it cannot find matching work. */
static struct work *take_work_by_id(struct cgpu_info *cgpu, uint16_t id)
{
struct work *work, *tmp, *ret = NULL;
wr_lock(&cgpu->qlock);
HASH_ITER(hh, cgpu->queued_work, work, tmp) {
if (work->subid == id) {
ret = work;
break;
}
}
if (ret)
__work_completed(cgpu, ret);
wr_unlock(&cgpu->qlock);
return ret;
}
/* This function will look up a work item in the hashtable if it matches the
* id in work->subid and return a cloned work item if it matches. It may return
* NULL if it cannot find matching work. */
static struct work *clone_work_by_id(struct cgpu_info *cgpu, uint16_t id)
{
struct work *work, *tmp, *ret = NULL;
rd_lock(&cgpu->qlock);
HASH_ITER(hh, cgpu->queued_work, work, tmp) {
if (work->subid == id) {
ret = work;
break;
}
}
if (ret)
ret = copy_work(ret);
rd_unlock(&cgpu->qlock);
return ret;
}
static bool cta_send_msg(struct cgpu_info *cointerra, char *buf);
static uint16_t hu16_from_msg(char *buf, int msg)
{
return le16toh(*(uint16_t *)&buf[msg]);
}
static uint32_t hu32_from_msg(char *buf, int msg)
{
return le32toh(*(uint32_t *)&buf[msg]);
}
static uint64_t hu64_from_msg(char *buf, int msg)
{
return le64toh(*(uint64_t *)&buf[msg]);
}
static uint8_t u8_from_msg(char *buf, int msg)
{
return *(uint8_t *)&buf[msg];
}
static void msg_from_hu16(char *buf, int msg, uint16_t val)
{
*(uint16_t *)&buf[msg] = htole16(val);
}
static void cta_parse_reqwork(struct cgpu_info *cointerra, struct cointerra_info *info,
char *buf)
{
uint16_t retwork;
retwork = hu16_from_msg(buf, CTA_REQWORK_REQUESTS);
applog(LOG_DEBUG, "%s %d: Request work message for %u items received",
cointerra->drv->name, cointerra->device_id, retwork);
mutex_lock(&info->lock);
info->requested = retwork;
cointerra_set_queue_full(cointerra, !retwork);
mutex_unlock(&info->lock);
}
static void cta_parse_recvmatch(struct thr_info *thr, struct cgpu_info *cointerra,
struct cointerra_info *info, char *buf)
{
struct cgpu_info *corecgpu;
struct thr_info *corethr;
uint32_t timestamp_offset, mcu_tag;
uint16_t retwork;
struct work *work;
uint8_t asic, core, pipe, coreno;
int pipeno, bitchar, bitbit;
/* No endian switch needs doing here since it's sent and returned as
* the same 4 bytes */
retwork = *(uint16_t *)(&buf[CTA_DRIVER_TAG]);
mcu_tag = hu32_from_msg(buf, CTA_MCU_TAG);
const uint8_t wdiffbits = u8_from_msg(buf, CTA_WORK_DIFFBITS);
const uint32_t nonce = hu32_from_msg(buf, CTA_MATCH_NONCE);
asic = u8_from_msg(buf, CTA_MCU_ASIC);
core = u8_from_msg(buf, CTA_MCU_CORE);
pipe = u8_from_msg(buf, CTA_MCU_PIPE);
pipeno = asic * 512 + core * 128 + pipe;
// For some reason, pipe numbers skip 0x?f
const int bfg_pipeno = ((pipe >> 4) * 0xf) + (pipe & 0xf);
const unsigned procno = (asic * 480) + (core * 120) + bfg_pipeno;
corecgpu = device_proc_by_id(cointerra, procno) ?: cointerra;
corethr = corecgpu->thr[0];
applog(LOG_DEBUG, "%s %d: Match message for id 0x%04x MCU id 0x%08x received",
cointerra->drv->name, cointerra->device_id, retwork, mcu_tag);
work = clone_work_by_id(cointerra, retwork);
if (likely(work)) {
unsigned char rhash[32];
char outhash[16];
double wdiff;
uint64_t hashes;
bool ret;
timestamp_offset = hu32_from_msg(buf, CTA_MATCH_NOFFSET);
if (timestamp_offset) {
struct work *base_work = work;
work = copy_work_noffset(base_work, timestamp_offset);
free_work(base_work);
}
/* Test against the difficulty we asked for along with the work */
wdiff = bits_to_diff(wdiffbits);
hashes = (uint64_t)wdiff * 0x100000000ull;
ret = true; // TODO: test_nonce_diff(work, nonce, wdiff);
if (opt_debug) {
/* Debugging, remove me */
swab256(rhash, work->hash);
bin2hex(outhash, rhash, 8);
applog(LOG_DEBUG, "submit work %s 0x%04x 0x%08x %d 0x%08x",
outhash, retwork, mcu_tag, timestamp_offset, nonce);
}
hashes_done2(corethr, hashes, NULL);
if (likely(ret)) {
coreno = asic * 4 + core;
if (unlikely(asic > 1 || core > 3 || pipe > 127 || pipeno > 1023)) {
applog(LOG_WARNING, "%s %d: MCU invalid pipe asic %d core %d pipe %d",
cointerra->drv->name, cointerra->device_id, asic, core, pipe);
coreno = 0;
} else {
info->last_pipe_nonce[pipeno] = time(NULL);
bitchar = pipeno / 8;
bitbit = pipeno % 8;
info->pipe_bitmap[bitchar] |= 0x80 >> bitbit;
}
applog(LOG_DEBUG, "%"PRIpreprv": Submitting tested work job_id %s work_id %u",
corecgpu->proc_repr, work->job_id, work->subid);
ret = submit_nonce(corethr, work, nonce);
mutex_lock(&info->lock);
info->share_hashes += hashes;
info->tot_core_hashes[coreno] += hashes;
info->hashes += nonce;
mutex_unlock(&info->lock);
} else {
char sendbuf[CTA_MSG_SIZE];
applog(LOG_DEBUG, "%s %d: Notify bad match work",
cointerra->drv->name, cointerra->device_id);
if (opt_debug) {
unsigned char midstate[32], wdata[12];
char hexmidstate[68], hexwdata[28];
uint16_t wid;
memcpy(&wid, &info->work_id, 2);
flip32(midstate, work->midstate);
bin2hex(hexmidstate, midstate, 32);
flip12(wdata, &work->data[64]);
bin2hex(hexwdata, wdata, 12);
applog(LOG_DEBUG, "False match sent: work id %u midstate %s blkhdr %s",
wid, hexmidstate, hexwdata);
applog(LOG_DEBUG, "False match reports: work id 0x%04x MCU id 0x%08x work diff %.1f",
retwork, mcu_tag, wdiff);
applog(LOG_DEBUG, "False match tested: nonce 0x%08x noffset %d %s",
nonce, timestamp_offset, outhash);
}
/* Tell the device we got a false match */
cta_gen_message(sendbuf, CTA_SEND_FMATCH);
memcpy(sendbuf + 3, buf, CTA_MSG_SIZE - 3);
cta_send_msg(cointerra, sendbuf);
}
free_work(work);
} else {
applog(LOG_INFO, "%s %d: Matching work id 0x%X %d not found", cointerra->drv->name,
cointerra->device_id, retwork, __LINE__);
inc_hw_errors3(corethr, NULL, &nonce, bits_to_diff(wdiffbits));
mutex_lock(&info->lock);
info->no_matching_work++;
mutex_unlock(&info->lock);
}
}
static void cta_parse_wdone(struct thr_info *thr, struct cgpu_info *cointerra,
struct cointerra_info *info, char *buf)
{
uint16_t retwork = *(uint16_t *)(&buf[CTA_DRIVER_TAG]);
struct work *work = take_work_by_id(cointerra, retwork);
uint64_t hashes;
if (likely(work))
free_work(work);
else {
applog(LOG_INFO, "%s %d: Done work not found id 0x%X %d",
cointerra->drv->name, cointerra->device_id, retwork, __LINE__);
inc_hw_errors_only(thr);
}
/* Removing hashes from work done message */
hashes = hu64_from_msg(buf, CTA_WDONE_NONCES);
if (unlikely(hashes > (61 * 0x100000000ull))) {
applog(LOG_INFO, "%s Invalid hash returned %"PRIu64"x %"PRIu64"x %"PRIu64"X",
__func__, info->hashes, hashes, hashes);
hashes = 0;
}
mutex_lock(&info->lock);
info->hashes += hashes;
mutex_unlock(&info->lock);
}
static void u16array_from_msg(uint16_t *u16, int entries, int var, char *buf)
{
int i, j;
for (i = 0, j = 0; i < entries; i++, j += sizeof(uint16_t))
u16[i] = hu16_from_msg(buf, var + j);
}
static void cta_parse_statread(struct cgpu_info *cointerra, struct cointerra_info *info,
char *buf)
{
int i;
mutex_lock(&info->lock);
u16array_from_msg(info->coretemp, CTA_CORES, CTA_STAT_CORETEMPS, buf);
info->ambtemp_low = hu16_from_msg(buf, CTA_STAT_AMBTEMP_LOW);
info->ambtemp_avg = hu16_from_msg(buf, CTA_STAT_AMBTEMP_AVG);
info->ambtemp_high = hu16_from_msg(buf, CTA_STAT_AMBTEMP_HIGH);
u16array_from_msg(info->pump_tachs, CTA_PUMPS, CTA_STAT_PUMP_TACHS, buf);
u16array_from_msg(info->fan_tachs, CTA_FANS, CTA_STAT_FAN_TACHS, buf);
u16array_from_msg(info->corevolts, CTA_CORES, CTA_STAT_CORE_VOLTS, buf);
info->volts33 = hu16_from_msg(buf, CTA_STAT_VOLTS33);
info->volts12 = hu16_from_msg(buf, CTA_STAT_VOLTS12);
info->inactive = hu16_from_msg(buf, CTA_STAT_INACTIVE);
info->active = hu16_from_msg(buf, CTA_STAT_ACTIVE);
mutex_unlock(&info->lock);
struct cgpu_info *proc = cointerra;
for (i = 0; i < CTA_CORES; i++) {
float temp = info->coretemp[i] / 100.;
for (int j = 0; j < 120; (++j), (proc = proc->next_proc))
proc->temp = temp;
}
}
static void u8array_from_msg(uint8_t *u8, int entries, int var, char *buf)
{
int i;
for (i = 0; i < entries; i++)
u8[i] = u8_from_msg(buf, var + i);
}
static void cta_parse_statset(struct cointerra_info *info, char *buf)
{
mutex_lock(&info->lock);
u8array_from_msg(info->coreperf, CTA_CORES, CTA_STAT_PERFMODE, buf);
u8array_from_msg(info->fanspeed, CTA_FANS, CTA_STAT_FANSPEEDS, buf);
info->dies_active = u8_from_msg(buf, CTA_STAT_DIES_ACTIVE);
u8array_from_msg(info->pipes_enabled, CTA_CORES, CTA_STAT_PIPES_ENABLED, buf);
u16array_from_msg(info->corefreqs, CTA_CORES, CTA_STAT_CORE_FREQS, buf);
info->uptime = hu32_from_msg(buf,CTA_STAT_UPTIME);
mutex_unlock(&info->lock);
}
static void cta_parse_info(struct cgpu_info *cointerra, struct cointerra_info *info,
char *buf)
{
mutex_lock(&info->lock);
info->hwrev = hu64_from_msg(buf, CTA_INFO_HWREV);
info->serial = hu32_from_msg(buf, CTA_INFO_SERNO);
info->asics = u8_from_msg(buf, CTA_INFO_NUMASICS);
info->dies = u8_from_msg(buf, CTA_INFO_NUMDIES);
info->cores = hu16_from_msg(buf, CTA_INFO_NUMCORES);
info->board_number = u8_from_msg(buf, CTA_INFO_BOARDNUMBER);
info->fwrev[0] = u8_from_msg(buf, CTA_INFO_FWREV_MAJ);
info->fwrev[1] = u8_from_msg(buf, CTA_INFO_FWREV_MIN);
info->fwrev[2] = u8_from_msg(buf, CTA_INFO_FWREV_MIC);
info->fw_year = hu16_from_msg(buf, CTA_INFO_FWDATE_YEAR);
info->fw_month = u8_from_msg(buf, CTA_INFO_FWDATE_MONTH);
info->fw_day = u8_from_msg(buf, CTA_INFO_FWDATE_DAY);
info->init_diffbits = u8_from_msg(buf, CTA_INFO_INITDIFFBITS);
info->min_diffbits = u8_from_msg(buf, CTA_INFO_MINDIFFBITS);
info->max_diffbits = u8_from_msg(buf, CTA_INFO_MAXDIFFBITS);
mutex_unlock(&info->lock);
#if 0
if (!cointerra->unique_id) {
uint32_t b32 = htobe32(info->serial);
cointerra->unique_id = malloc((4 * 2) + 1);
bin2hex(cointerra->unique_id, &b32, 4);
}
#endif
}
static void cta_parse_rdone(struct cgpu_info *cointerra, struct cointerra_info *info,
char *buf)
{
uint8_t reset_type, diffbits;
uint64_t wdone;
reset_type = buf[CTA_RESET_TYPE];
diffbits = buf[CTA_RESET_DIFF];
wdone = hu64_from_msg(buf, CTA_WDONE_NONCES);
applog(LOG_INFO, "%s %d: Reset done type %u message %u diffbits %"PRIu64" done received",
cointerra->drv->name, cointerra->device_id, reset_type, diffbits, wdone);
if (wdone) {
applog(LOG_INFO, "%s %d: Reset done type %u message %u diffbits %"PRIu64" done received",
cointerra->drv->name, cointerra->device_id, reset_type, diffbits, wdone);
mutex_lock(&info->lock);
info->hashes += wdone;
mutex_unlock(&info->lock);
}
/* Note that the cgsem that is posted here must not be waited on while
* holding the info->lock to not get into a livelock since this
* function also grabs the lock first and it's always best to not sleep
* while holding a lock. */
if (reset_type == CTA_RESET_NEW) {
cta_clear_work(cointerra);
/* Tell reset sender that the reset is complete
* and it may resume. */
notifier_wake(info->reset_notifier);
}
}
static void cta_zero_stats(struct cgpu_info *cointerra);
static void cta_parse_debug(struct cointerra_info *info, char *buf)
{
mutex_lock(&info->lock);
info->tot_underruns = hu16_from_msg(buf, CTA_STAT_UNDERRUNS);
u16array_from_msg(info->tot_hw_errors, CTA_CORES, CTA_STAT_HW_ERRORS, buf);
info->tot_hashes = hu64_from_msg(buf, CTA_STAT_HASHES);
info->tot_flushed_hashes = hu64_from_msg(buf, CTA_STAT_FLUSHED_HASHES);
info->autovoltage = u8_from_msg(buf, CTA_STAT_AUTOVOLTAGE);
info->current_ps_percent = u8_from_msg(buf, CTA_STAT_POWER_PERCENT);
info->power_used = hu16_from_msg(buf,CTA_STAT_POWER_USED);
info->power_voltage = hu16_from_msg(buf,CTA_STAT_VOLTAGE);
info->ipower_used = hu16_from_msg(buf,CTA_STAT_IPOWER_USED);
info->ipower_voltage = hu16_from_msg(buf,CTA_STAT_IVOLTAGE);
info->power_temps[0] = hu16_from_msg(buf,CTA_STAT_PS_TEMP1);
info->power_temps[1] = hu16_from_msg(buf,CTA_STAT_PS_TEMP2);
mutex_unlock(&info->lock);
#if 0
/* Autovoltage is positive only once at startup and eventually drops
* to zero. After that time we reset the stats since they're unreliable
* till then. */
if (unlikely(!info->autovoltage_complete && !info->autovoltage)) {
struct cgpu_info *cointerra = info->thr->cgpu;
info->autovoltage_complete = true;
cgtime(&cointerra->dev_start_tv);
cta_zero_stats(cointerra);
cointerra->total_mhashes = 0;
cointerra->accepted = 0;
cointerra->rejected = 0;
cointerra->hw_errors = 0;
cointerra->utility = 0.0;
cointerra->last_share_pool_time = 0;
cointerra->diff1 = 0;
cointerra->diff_accepted = 0;
cointerra->diff_rejected = 0;
cointerra->last_share_diff = 0;
}
#endif
}
static void cta_parse_msg(struct thr_info *thr, struct cgpu_info *cointerra,
struct cointerra_info *info, char *buf)
{
switch (buf[CTA_MSG_TYPE]) {
default:
case CTA_RECV_UNUSED:
applog(LOG_INFO, "%s %d: Unidentified message type %u",
cointerra->drv->name, cointerra->device_id, buf[CTA_MSG_TYPE]);
break;
case CTA_RECV_REQWORK:
cta_parse_reqwork(cointerra, info, buf);
break;
case CTA_RECV_MATCH:
cta_parse_recvmatch(thr, cointerra, info, buf);
break;
case CTA_RECV_WDONE:
applog(LOG_DEBUG, "%s %d: Work done message received",
cointerra->drv->name, cointerra->device_id);
cta_parse_wdone(thr, cointerra, info, buf);
break;
case CTA_RECV_STATREAD:
applog(LOG_DEBUG, "%s %d: Status readings message received",
cointerra->drv->name, cointerra->device_id);
cta_parse_statread(cointerra, info, buf);
break;
case CTA_RECV_STATSET:
applog(LOG_DEBUG, "%s %d: Status settings message received",
cointerra->drv->name, cointerra->device_id);
cta_parse_statset(info, buf);
break;
case CTA_RECV_INFO:
applog(LOG_DEBUG, "%s %d: Info message received",
cointerra->drv->name, cointerra->device_id);
cta_parse_info(cointerra, info, buf);
break;
case CTA_RECV_MSG:
applog(LOG_NOTICE, "%s: Devlog: %.*s", cointerra->dev_repr, (int)COINTERRA_MSGBODY_SIZE, &buf[CTA_MSG_RECVD]);
break;
case CTA_RECV_RDONE:
cta_parse_rdone(cointerra, info, buf);
break;
case CTA_RECV_STATDEBUG:
cta_parse_debug(info, buf);
break;
}
}
static
void cta_recv_thread(void *arg)
{
struct thr_info *thr = (struct thr_info *)arg;
struct cgpu_info *cointerra = thr->cgpu;
struct cointerra_info *info = cointerra->device_data;
int offset = 0;
while (likely(!cointerra->shutdown)) {
char buf[CTA_READBUF_SIZE];
int amount;
if (unlikely(0))
{
applog(LOG_DEBUG, "%s %d: Device disappeared, disabling recv thread",
cointerra->drv->name, cointerra->device_id);
break;
}
amount = usb_read(info->ep, buf + offset, CTA_MSG_SIZE);
if (amount != CTA_MSG_SIZE && amount != 0) {
applog(LOG_ERR, "%s: Read error %s, read %d",
cointerra->dev_repr, bfg_strerror(errno, BST_ERRNO), amount);
break;
}
offset += amount;
while (offset >= CTA_MSG_SIZE) {
char *msg = mystrstr(buf, offset, cointerra_hdr);
int begin;
if (unlikely(!msg)) {
applog(LOG_WARNING, "%s %d: No message header found, discarding buffer",
cointerra->drv->name, cointerra->device_id);
inc_hw_errors_only(thr);
/* Save the last byte in case it's the fist
* byte of a header. */
begin = CTA_MSG_SIZE - 1;
offset -= begin;
memmove(buf, buf + begin, offset);
continue;
}
if (unlikely(msg != buf)) {
begin = msg - buf;
applog(LOG_WARNING, "%s %d: Reads out of sync, discarding %d bytes",
cointerra->drv->name, cointerra->device_id, begin);
inc_hw_errors_only(thr);
offset -= begin;
memmove(buf, msg, offset);
if (offset < CTA_MSG_SIZE)
break;
}
/* We have enough buffer for a full message, parse now */
cta_parse_msg(thr, cointerra, info, msg);
offset -= CTA_MSG_SIZE;
if (offset > 0)
memmove(buf, buf + CTA_MSG_SIZE, offset);
}
break;
}
}
static
bool cointerra_write_msg(struct lowl_usb_endpoint * const ep, const char * const repr, const uint8_t msgtype, const void * const msgbody)
{
uint8_t buf[COINTERRA_PACKET_SIZE], *p;
memcpy(buf, cointerra_startseq, sizeof(cointerra_startseq));
p = &buf[sizeof(cointerra_startseq)];
pk_u8(p, 0, msgtype);
memcpy(&p[1], msgbody, COINTERRA_MSGBODY_SIZE);
if (usb_write(ep, buf, sizeof(buf)) != sizeof(buf))
return false;
return true;
}
static bool cta_send_msg(struct cgpu_info *cointerra, char *buf)
{
struct cointerra_info *info = cointerra->device_data;
int amount;
/* Serialise usb writes to prevent overlap in case multiple threads
* send messages */
mutex_lock(&info->sendlock);
amount = usb_write(info->ep, buf, CTA_MSG_SIZE);
mutex_unlock(&info->sendlock);
if (unlikely(amount != CTA_MSG_SIZE)) {
applog(LOG_ERR, "%s: Write error %s, wrote %d of %d",
cointerra->dev_repr, bfg_strerror(errno, BST_ERRNO), amount, CTA_MSG_SIZE);
return false;
}
return true;
}
static bool cta_prepare(struct thr_info *thr)
{
struct cgpu_info *cointerra = thr->cgpu;
struct lowlevel_device_info * const llinfo = cointerra->device_data;
struct cointerra_info *info = calloc(sizeof(struct cointerra_info), 1);
char buf[CTA_MSG_SIZE];
sleep(1);
if (unlikely(!info))
quit(1, "Failed to calloc info in cta_detect_one");
for_each_managed_proc(proc, cointerra)
proc->device_data = info;
/* Nominally set a requested value when starting, preempting the need
* for a req-work message. */
info->requested = CTA_MAX_QUEUE;
cointerra_set_queue_full(cointerra, false);
cgpu_set_defaults(cointerra);
bool open_rv = cointerra_open(llinfo, cointerra->dev_repr, &info->usbh, &info->ep, info);
lowlevel_devinfo_free(llinfo);
if (!open_rv)
return false;
info->thr = thr;
mutex_init(&info->lock);
mutex_init(&info->sendlock);
notifier_init(info->reset_notifier);
/* Request a single status setting message */
cta_gen_message(buf, CTA_SEND_REQUEST);
msg_from_hu16(buf, CTA_REQ_MSGTYPE, CTA_RECV_STATSET);
msg_from_hu16(buf, CTA_REQ_INTERVAL, 0);
if (!cta_send_msg(cointerra, buf))
return false;
/* Request status debug messages every 60 seconds */
cta_gen_message(buf, CTA_SEND_REQUEST);
msg_from_hu16(buf, CTA_REQ_MSGTYPE, CTA_RECV_STATDEBUG);
msg_from_hu16(buf, CTA_REQ_INTERVAL, 6000);
if (!cta_send_msg(cointerra, buf))
return false;
cgtime(&info->core_hash_start);
usb_ep_set_timeouts_ms(info->ep, COINTERRA_USB_TIMEOUT, COINTERRA_USB_TIMEOUT);
timer_set_now(&thr->tv_poll);
return true;
}
static void cta_send_reset(struct cgpu_info *cointerra, struct cointerra_info *info,
uint8_t reset_type, uint8_t diffbits);
static void cta_flush_work(struct cgpu_info *cointerra);
static
bool cointerra_queue_append(struct thr_info * const thr, struct work * const work)
{
struct cgpu_info * const dev = thr->cgpu->device;
// struct thr_info * const master_thr = dev->thr[0];
struct cointerra_info * const devstate = dev->device_data;
struct timeval tv_now, tv_latest;
uint8_t buf[COINTERRA_MSGBODY_SIZE] = {0};
uint16_t ntimeroll, zerobits;
if (unlikely(!devstate->requested))
{
applog(LOG_DEBUG, "%s: Attempt to queue work while none requested; rejecting", dev->dev_repr);
cointerra_set_queue_full(dev, true);
return false;
}
timer_set_now(&tv_now);
timer_set_delay(&tv_latest, &tv_now, cointerra_latest_result_usecs);
ntimeroll = max(0, work_ntime_range(work, &tv_now, &tv_latest, cointerra_desired_roll));
if (unlikely(!devstate->work_id))
++devstate->work_id;
work->device_id = devstate->work_id;
pk_u16be(buf, 0, work->device_id);
work->subid = htobe16(work->device_id);
swap32yes(&buf[ 6], work->midstate , 0x20 / 4);
swap32yes(&buf[0x26], &work->data[0x40], 0xc / 4);
pk_u16le(buf, 50, ntimeroll);
// Use the real share difficulty up to cointerra_max_nonce_diff
if (work->work_difficulty >= cointerra_max_nonce_diff)
work->nonce_diff = cointerra_max_nonce_diff;
else
work->nonce_diff = work->work_difficulty;
zerobits = log2(floor(work->nonce_diff));
work->nonce_diff = pow(2, zerobits);
zerobits += 0x20;
pk_u16le(buf, 52, zerobits);
if (!cointerra_write_msg(devstate->ep, cointerra_drv.dname, CMTO_WORK, buf))
return false;
// HASH_ADD_INT(master_thr->work, device_id, work);
{
++dev->queued_count;
timer_set_now(&work->tv_work_start);
HASH_ADD_INT(dev->queued_work, id, work);
}
++devstate->work_id;
if (!--devstate->requested)
{
applog(LOG_DEBUG, "%s: Sent all requested works, queue full", dev->dev_repr);
cointerra_set_queue_full(dev, true);