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deviceapi.c
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deviceapi.c
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/*
* Copyright 2011-2014 Luke Dashjr
* Copyright 2011-2012 Con Kolivas
* Copyright 2012-2013 Andrew Smith
* Copyright 2010 Jeff Garzik
* Copyright 2014 Nate Woolls
*
* 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 <ctype.h>
#ifdef WIN32
#include <winsock2.h>
#else
#include <sys/select.h>
#endif
#include <stdbool.h>
#include <stdint.h>
#include <sys/time.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <utlist.h>
#include "compat.h"
#include "deviceapi.h"
#include "logging.h"
#include "lowlevel.h"
#ifdef NEED_BFG_LOWL_VCOM
#include "lowl-vcom.h"
#endif
#include "miner.h"
#include "util.h"
struct driver_registration *_bfg_drvreg1;
struct driver_registration *_bfg_drvreg2;
void _bfg_register_driver(const struct device_drv *drv)
{
struct driver_registration *ndr;
if (!drv)
{
// NOTE: Not sorted at this point (dname and priority may be unassigned until drv_init!)
LL_FOREACH2(_bfg_drvreg1, ndr, next_dname)
{
drv = ndr->drv;
if (drv->drv_init)
drv->drv_init();
}
return;
}
ndr = malloc(sizeof(*ndr));
*ndr = (struct driver_registration){
.drv = drv,
};
LL_PREPEND2(_bfg_drvreg1, ndr, next_dname);
LL_PREPEND2(_bfg_drvreg2, ndr, next_prio);
}
static
int sort_drv_by_dname(struct driver_registration * const a, struct driver_registration * const b)
{
return strcmp(a->drv->dname, b->drv->dname);
};
static
int sort_drv_by_priority(struct driver_registration * const a, struct driver_registration * const b)
{
return a->drv->probe_priority - b->drv->probe_priority;
};
void bfg_devapi_init()
{
_bfg_register_driver(NULL);
#ifdef LL_SORT2
LL_SORT2(_bfg_drvreg1, sort_drv_by_dname, next_dname);
LL_SORT2(_bfg_drvreg2, sort_drv_by_priority, next_prio);
#else
#define next next_dname
LL_SORT(_bfg_drvreg1, sort_drv_by_dname);
#undef next
#define next next_prio
LL_SORT(_bfg_drvreg2, sort_drv_by_priority);
#undef next
#endif
}
float common_sha256d_and_scrypt_min_nonce_diff(struct cgpu_info * const proc, const struct mining_algorithm * const malgo)
{
switch (malgo->algo)
{
#ifdef USE_SCRYPT
case POW_SCRYPT:
return 1./0x10000;
#endif
#ifdef USE_SHA256D
case POW_SHA256D:
return 1.;
#endif
case POW_SHA512_256D:
return 1.;
default:
return -1.;
}
}
#ifdef USE_SCRYPT
float common_scrypt_min_nonce_diff(struct cgpu_info * const proc, const struct mining_algorithm * const malgo)
{
return (malgo->algo == POW_SCRYPT) ? (1./0x10000) : -1.;
}
#endif
bool hashes_done(struct thr_info *thr, int64_t hashes, struct timeval *tvp_hashes, uint32_t *max_nonce)
{
struct cgpu_info *cgpu = thr->cgpu;
const long cycle = opt_log_interval / 5 ? : 1;
if (unlikely(hashes == -1)) {
if (timer_elapsed(&cgpu->tv_device_last_not_well, NULL) > 0)
dev_error(cgpu, REASON_THREAD_ZERO_HASH);
if (thr->scanhash_working && opt_restart) {
applog(LOG_ERR, "%"PRIpreprv" failure, attempting to reinitialize", cgpu->proc_repr);
thr->scanhash_working = false;
cgpu->reinit_backoff = 5.2734375;
hashes = 0;
} else {
applog(LOG_ERR, "%"PRIpreprv" failure, disabling!", cgpu->proc_repr);
cgpu->deven = DEV_RECOVER_ERR;
run_cmd(cmd_idle);
return false;
}
}
else
thr->scanhash_working = true;
thr->hashes_done += hashes;
if (hashes > cgpu->max_hashes)
cgpu->max_hashes = hashes;
timeradd(&thr->tv_hashes_done, tvp_hashes, &thr->tv_hashes_done);
// max_nonce management (optional)
if (max_nonce)
{
uint64_t new_max_nonce = *max_nonce;
new_max_nonce *= cycle;
new_max_nonce *= 1000000;
new_max_nonce /= ((uint64_t)thr->tv_hashes_done.tv_sec * 1000000) + thr->tv_hashes_done.tv_usec;
if (new_max_nonce > 0xffffffff)
new_max_nonce = 0xffffffff;
*max_nonce = new_max_nonce;
}
hashmeter2(thr);
return true;
}
bool hashes_done2(struct thr_info *thr, int64_t hashes, uint32_t *max_nonce)
{
struct timeval tv_now, tv_delta;
timer_set_now(&tv_now);
timersub(&tv_now, &thr->_tv_last_hashes_done_call, &tv_delta);
thr->_tv_last_hashes_done_call = tv_now;
return hashes_done(thr, hashes, &tv_delta, max_nonce);
}
/* A generic wait function for threads that poll that will wait a specified
* time tdiff waiting on a work restart request. Returns zero if the condition
* was met (work restart requested) or ETIMEDOUT if not.
*/
int restart_wait(struct thr_info *thr, unsigned int mstime)
{
struct timeval tv_timer, tv_now, tv_timeout;
fd_set rfds;
SOCKETTYPE wrn = thr->work_restart_notifier[0];
int rv;
if (unlikely(thr->work_restart_notifier[1] == INVSOCK))
{
// This is a bug!
applog(LOG_ERR, "%"PRIpreprv": restart_wait called without a work_restart_notifier", thr->cgpu->proc_repr);
cgsleep_ms(mstime);
return (thr->work_restart ? 0 : ETIMEDOUT);
}
timer_set_now(&tv_now);
timer_set_delay(&tv_timer, &tv_now, mstime * 1000);
while (true)
{
FD_ZERO(&rfds);
FD_SET(wrn, &rfds);
tv_timeout = tv_timer;
rv = select(wrn + 1, &rfds, NULL, NULL, select_timeout(&tv_timeout, &tv_now));
if (rv == 0)
return ETIMEDOUT;
if (rv > 0)
{
if (thr->work_restart)
return 0;
notifier_read(thr->work_restart_notifier);
}
timer_set_now(&tv_now);
}
}
static
struct work *get_and_prepare_work(struct thr_info *thr)
{
struct cgpu_info *proc = thr->cgpu;
struct device_drv *api = proc->drv;
struct work *work;
work = get_work(thr);
if (!work)
return NULL;
if (api->prepare_work && !api->prepare_work(thr, work)) {
free_work(work);
applog(LOG_ERR, "%"PRIpreprv": Work prepare failed, disabling!", proc->proc_repr);
proc->deven = DEV_RECOVER_ERR;
run_cmd(cmd_idle);
return NULL;
}
return work;
}
// Miner loop to manage a single processor (with possibly multiple threads per processor)
void minerloop_scanhash(struct thr_info *mythr)
{
struct cgpu_info *cgpu = mythr->cgpu;
struct device_drv *api = cgpu->drv;
struct timeval tv_start, tv_end;
struct timeval tv_hashes, tv_worktime;
uint32_t max_nonce = api->can_limit_work ? api->can_limit_work(mythr) : 0xffffffff;
int64_t hashes;
struct work *work;
const bool primary = (!mythr->device_thread) || mythr->primary_thread;
#ifdef HAVE_PTHREAD_CANCEL
pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL);
#endif
if (cgpu->deven != DEV_ENABLED)
mt_disable(mythr);
while (likely(!cgpu->shutdown)) {
mythr->work_restart = false;
request_work(mythr);
work = get_and_prepare_work(mythr);
if (!work)
break;
timer_set_now(&work->tv_work_start);
do {
thread_reportin(mythr);
/* Only allow the mining thread to be cancelled when
* it is not in the driver code. */
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
timer_set_now(&tv_start);
/* api->scanhash should scan the work for valid nonces
* until max_nonce is reached or thr_info->work_restart */
hashes = api->scanhash(mythr, work, work->blk.nonce + max_nonce);
timer_set_now(&tv_end);
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_testcancel();
thread_reportin(mythr);
timersub(&tv_end, &tv_start, &tv_hashes);
if (!hashes_done(mythr, hashes, &tv_hashes, api->can_limit_work ? &max_nonce : NULL))
goto disabled;
if (unlikely(mythr->work_restart)) {
/* Apart from device_thread 0, we stagger the
* starting of every next thread to try and get
* all devices busy before worrying about
* getting work for their extra threads */
if (!primary) {
struct timespec rgtp;
rgtp.tv_sec = 0;
rgtp.tv_nsec = 250 * mythr->device_thread * 1000000;
nanosleep(&rgtp, NULL);
}
break;
}
if (unlikely(mythr->pause || cgpu->deven != DEV_ENABLED))
disabled:
mt_disable(mythr);
timersub(&tv_end, &work->tv_work_start, &tv_worktime);
/* The inner do-while loop will exit unless the device is capable of
* scanning a specific nonce range (currently CPU and GPU drivers)
* See abandon_work comments for more details */
} while (!abandon_work(work, &tv_worktime, cgpu->max_hashes));
free_work(work);
}
}
void mt_disable_start__async(struct thr_info * const mythr)
{
mt_disable_start(mythr);
if (mythr->prev_work)
free_work(mythr->prev_work);
mythr->prev_work = mythr->work;
mythr->work = NULL;
mythr->_job_transition_in_progress = false;
}
bool do_job_prepare(struct thr_info *mythr, struct timeval *tvp_now)
{
struct cgpu_info *proc = mythr->cgpu;
struct device_drv *api = proc->drv;
struct timeval tv_worktime;
mythr->tv_morework.tv_sec = -1;
mythr->_job_transition_in_progress = true;
if (mythr->work)
timersub(tvp_now, &mythr->work->tv_work_start, &tv_worktime);
if ((!mythr->work) || abandon_work(mythr->work, &tv_worktime, proc->max_hashes))
{
mythr->work_restart = false;
request_work(mythr);
// FIXME: Allow get_work to return NULL to retry on notification
if (mythr->next_work)
free_work(mythr->next_work);
mythr->next_work = get_and_prepare_work(mythr);
if (!mythr->next_work)
return false;
mythr->starting_next_work = true;
api->job_prepare(mythr, mythr->next_work, mythr->_max_nonce);
}
else
{
mythr->starting_next_work = false;
api->job_prepare(mythr, mythr->work, mythr->_max_nonce);
}
job_prepare_complete(mythr);
return true;
}
void job_prepare_complete(struct thr_info *mythr)
{
if (unlikely(mythr->busy_state == TBS_GETTING_RESULTS))
return;
if (mythr->work)
{
if (true /* TODO: job is near complete */ || unlikely(mythr->work_restart))
do_get_results(mythr, true);
else
{} // TODO: Set a timer to call do_get_results when job is near complete
}
else // no job currently running
do_job_start(mythr);
}
void do_get_results(struct thr_info *mythr, bool proceed_with_new_job)
{
struct cgpu_info *proc = mythr->cgpu;
struct device_drv *api = proc->drv;
struct work *work = mythr->work;
mythr->_job_transition_in_progress = true;
mythr->tv_results_jobstart = mythr->tv_jobstart;
mythr->_proceed_with_new_job = proceed_with_new_job;
if (api->job_get_results)
api->job_get_results(mythr, work);
else
job_results_fetched(mythr);
}
void job_results_fetched(struct thr_info *mythr)
{
if (mythr->_proceed_with_new_job)
do_job_start(mythr);
else
{
if (likely(mythr->prev_work))
{
struct timeval tv_now;
timer_set_now(&tv_now);
do_process_results(mythr, &tv_now, mythr->prev_work, true);
}
mt_disable_start__async(mythr);
}
}
void do_job_start(struct thr_info *mythr)
{
struct cgpu_info *proc = mythr->cgpu;
struct device_drv *api = proc->drv;
thread_reportin(mythr);
api->job_start(mythr);
}
void mt_job_transition(struct thr_info *mythr)
{
struct timeval tv_now;
timer_set_now(&tv_now);
if (mythr->starting_next_work)
{
mythr->next_work->tv_work_start = tv_now;
if (mythr->prev_work)
free_work(mythr->prev_work);
mythr->prev_work = mythr->work;
mythr->work = mythr->next_work;
mythr->next_work = NULL;
}
mythr->tv_jobstart = tv_now;
mythr->_job_transition_in_progress = false;
}
void job_start_complete(struct thr_info *mythr)
{
struct timeval tv_now;
if (unlikely(!mythr->prev_work))
return;
timer_set_now(&tv_now);
do_process_results(mythr, &tv_now, mythr->prev_work, false);
}
void job_start_abort(struct thr_info *mythr, bool failure)
{
struct cgpu_info *proc = mythr->cgpu;
if (failure)
{
proc->deven = DEV_RECOVER_ERR;
run_cmd(cmd_idle);
}
mythr->work = NULL;
mythr->_job_transition_in_progress = false;
}
bool do_process_results(struct thr_info *mythr, struct timeval *tvp_now, struct work *work, bool stopping)
{
struct cgpu_info *proc = mythr->cgpu;
struct device_drv *api = proc->drv;
struct timeval tv_hashes;
int64_t hashes = 0;
if (api->job_process_results)
hashes = api->job_process_results(mythr, work, stopping);
thread_reportin(mythr);
if (hashes)
{
timersub(tvp_now, &mythr->tv_results_jobstart, &tv_hashes);
if (!hashes_done(mythr, hashes, &tv_hashes, api->can_limit_work ? &mythr->_max_nonce : NULL))
return false;
}
return true;
}
static
void do_notifier_select(struct thr_info *thr, struct timeval *tvp_timeout)
{
struct cgpu_info *cgpu = thr->cgpu;
struct timeval tv_now;
int maxfd;
fd_set rfds;
timer_set_now(&tv_now);
FD_ZERO(&rfds);
FD_SET(thr->notifier[0], &rfds);
maxfd = thr->notifier[0];
FD_SET(thr->work_restart_notifier[0], &rfds);
set_maxfd(&maxfd, thr->work_restart_notifier[0]);
if (thr->mutex_request[1] != INVSOCK)
{
FD_SET(thr->mutex_request[0], &rfds);
set_maxfd(&maxfd, thr->mutex_request[0]);
}
if (select(maxfd + 1, &rfds, NULL, NULL, select_timeout(tvp_timeout, &tv_now)) < 0)
return;
if (thr->mutex_request[1] != INVSOCK && FD_ISSET(thr->mutex_request[0], &rfds))
{
// FIXME: This can only handle one request at a time!
pthread_mutex_t *mutexp = &cgpu->device_mutex;
notifier_read(thr->mutex_request);
mutex_lock(mutexp);
pthread_cond_signal(&cgpu->device_cond);
pthread_cond_wait(&cgpu->device_cond, mutexp);
mutex_unlock(mutexp);
}
if (FD_ISSET(thr->notifier[0], &rfds)) {
notifier_read(thr->notifier);
}
if (FD_ISSET(thr->work_restart_notifier[0], &rfds))
notifier_read(thr->work_restart_notifier);
}
void cgpu_setup_control_requests(struct cgpu_info * const cgpu)
{
mutex_init(&cgpu->device_mutex);
notifier_init(cgpu->thr[0]->mutex_request);
pthread_cond_init(&cgpu->device_cond, bfg_condattr);
}
void cgpu_request_control(struct cgpu_info * const cgpu)
{
struct thr_info * const thr = cgpu->thr[0];
if (pthread_equal(pthread_self(), thr->pth))
return;
mutex_lock(&cgpu->device_mutex);
notifier_wake(thr->mutex_request);
pthread_cond_wait(&cgpu->device_cond, &cgpu->device_mutex);
}
void cgpu_release_control(struct cgpu_info * const cgpu)
{
struct thr_info * const thr = cgpu->thr[0];
if (pthread_equal(pthread_self(), thr->pth))
return;
pthread_cond_signal(&cgpu->device_cond);
mutex_unlock(&cgpu->device_mutex);
}
static
void _minerloop_setup(struct thr_info *mythr)
{
struct cgpu_info * const cgpu = mythr->cgpu, *proc;
if (mythr->work_restart_notifier[1] == -1)
notifier_init(mythr->work_restart_notifier);
for (proc = cgpu; proc; proc = proc->next_proc)
{
mythr = proc->thr[0];
timer_set_now(&mythr->tv_watchdog);
proc->disable_watchdog = true;
}
}
void minerloop_async(struct thr_info *mythr)
{
struct thr_info *thr = mythr;
struct cgpu_info *cgpu = mythr->cgpu;
struct device_drv *api = cgpu->drv;
struct timeval tv_now;
struct timeval tv_timeout;
struct cgpu_info *proc;
bool is_running, should_be_running;
_minerloop_setup(mythr);
while (likely(!cgpu->shutdown)) {
tv_timeout.tv_sec = -1;
timer_set_now(&tv_now);
for (proc = cgpu; proc; proc = proc->next_proc)
{
mythr = proc->thr[0];
// Nothing should happen while we're starting a job
if (unlikely(mythr->busy_state == TBS_STARTING_JOB))
goto defer_events;
is_running = mythr->work;
should_be_running = (proc->deven == DEV_ENABLED && !mythr->pause);
if (should_be_running)
{
if (unlikely(!(is_running || mythr->_job_transition_in_progress)))
{
mt_disable_finish(mythr);
goto djp;
}
if (unlikely(mythr->work_restart))
goto djp;
}
else // ! should_be_running
{
if (unlikely(mythr->_job_transition_in_progress && timer_isset(&mythr->tv_morework)))
{
// Really only happens at startup
applog(LOG_DEBUG, "%"PRIpreprv": Job transition in progress, with morework timer enabled: unsetting in-progress flag", proc->proc_repr);
mythr->_job_transition_in_progress = false;
}
if (unlikely((is_running || !mythr->_mt_disable_called) && !mythr->_job_transition_in_progress))
{
disabled: ;
if (is_running)
{
if (mythr->busy_state != TBS_GETTING_RESULTS)
do_get_results(mythr, false);
else
// Avoid starting job when pending result fetch completes
mythr->_proceed_with_new_job = false;
}
else // !mythr->_mt_disable_called
mt_disable_start__async(mythr);
}
timer_unset(&mythr->tv_morework);
}
if (timer_passed(&mythr->tv_morework, &tv_now))
{
djp: ;
if (!do_job_prepare(mythr, &tv_now))
goto disabled;
}
defer_events:
if (timer_passed(&mythr->tv_poll, &tv_now))
api->poll(mythr);
if (timer_passed(&mythr->tv_watchdog, &tv_now))
{
timer_set_delay(&mythr->tv_watchdog, &tv_now, WATCHDOG_INTERVAL * 1000000);
bfg_watchdog(proc, &tv_now);
}
reduce_timeout_to(&tv_timeout, &mythr->tv_morework);
reduce_timeout_to(&tv_timeout, &mythr->tv_poll);
reduce_timeout_to(&tv_timeout, &mythr->tv_watchdog);
}
do_notifier_select(thr, &tv_timeout);
}
}
static
void do_queue_flush(struct thr_info *mythr)
{
struct cgpu_info *proc = mythr->cgpu;
struct device_drv *api = proc->drv;
api->queue_flush(mythr);
if (mythr->next_work)
{
free_work(mythr->next_work);
mythr->next_work = NULL;
}
}
void minerloop_queue(struct thr_info *thr)
{
struct thr_info *mythr;
struct cgpu_info *cgpu = thr->cgpu;
struct device_drv *api = cgpu->drv;
struct timeval tv_now;
struct timeval tv_timeout;
struct cgpu_info *proc;
bool should_be_running;
struct work *work;
_minerloop_setup(thr);
while (likely(!cgpu->shutdown)) {
tv_timeout.tv_sec = -1;
timer_set_now(&tv_now);
for (proc = cgpu; proc; proc = proc->next_proc)
{
mythr = proc->thr[0];
should_be_running = (proc->deven == DEV_ENABLED && !mythr->pause);
redo:
if (should_be_running)
{
if (unlikely(mythr->_mt_disable_called))
mt_disable_finish(mythr);
if (unlikely(mythr->work_restart))
{
mythr->work_restart = false;
do_queue_flush(mythr);
}
while (!mythr->queue_full)
{
if (mythr->next_work)
{
work = mythr->next_work;
mythr->next_work = NULL;
}
else
{
request_work(mythr);
// FIXME: Allow get_work to return NULL to retry on notification
work = get_and_prepare_work(mythr);
}
if (!work)
break;
if (!api->queue_append(mythr, work))
mythr->next_work = work;
}
}
else
if (unlikely(!mythr->_mt_disable_called))
{
do_queue_flush(mythr);
mt_disable_start(mythr);
}
if (timer_passed(&mythr->tv_poll, &tv_now))
api->poll(mythr);
if (timer_passed(&mythr->tv_watchdog, &tv_now))
{
timer_set_delay(&mythr->tv_watchdog, &tv_now, WATCHDOG_INTERVAL * 1000000);
bfg_watchdog(proc, &tv_now);
}
should_be_running = (proc->deven == DEV_ENABLED && !mythr->pause);
if (should_be_running && !mythr->queue_full)
goto redo;
reduce_timeout_to(&tv_timeout, &mythr->tv_poll);
reduce_timeout_to(&tv_timeout, &mythr->tv_watchdog);
}
// HACK: Some designs set the main thr tv_poll from secondary thrs
reduce_timeout_to(&tv_timeout, &cgpu->thr[0]->tv_poll);
do_notifier_select(thr, &tv_timeout);
}
}
void *miner_thread(void *userdata)
{
struct thr_info *mythr = userdata;
struct cgpu_info *cgpu = mythr->cgpu;
struct device_drv *drv = cgpu->drv;
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
char threadname[20];
snprintf(threadname, 20, "miner_%s", cgpu->proc_repr_ns);
RenameThread(threadname);
if (drv->thread_init && !drv->thread_init(mythr)) {
dev_error(cgpu, REASON_THREAD_FAIL_INIT);
for (struct cgpu_info *slave = cgpu->next_proc; slave && !slave->threads; slave = slave->next_proc)
dev_error(slave, REASON_THREAD_FAIL_INIT);
__thr_being_msg(LOG_ERR, mythr, "failure, exiting");
goto out;
}
if (drv_ready(cgpu) && !cgpu->already_set_defaults)
cgpu_set_defaults(cgpu);
thread_reportout(mythr);
applog(LOG_DEBUG, "Popping ping in miner thread");
notifier_read(mythr->notifier); // Wait for a notification to start
cgtime(&cgpu->cgminer_stats.start_tv);
if (drv->minerloop)
drv->minerloop(mythr);
else
minerloop_scanhash(mythr);
__thr_being_msg(LOG_NOTICE, mythr, "shutting down");
out: ;
struct cgpu_info *proc = cgpu;
do
{
proc->deven = DEV_DISABLED;
proc->status = LIFE_DEAD2;
}
while ( (proc = proc->next_proc) && !proc->threads);
mythr->getwork = 0;
mythr->has_pth = false;
cgsleep_ms(1);
if (drv->thread_shutdown)
drv->thread_shutdown(mythr);
notifier_destroy(mythr->notifier);
return NULL;
}
static pthread_mutex_t _add_cgpu_mutex = PTHREAD_MUTEX_INITIALIZER;
static
bool _add_cgpu(struct cgpu_info *cgpu)
{
int lpcount;
if (!cgpu->procs)
cgpu->procs = 1;
lpcount = cgpu->procs;
cgpu->device = cgpu;
cgpu->dev_repr = malloc(6);
cgpu->dev_repr_ns = malloc(6);
#ifdef NEED_BFG_LOWL_VCOM
maybe_strdup_if_null(&cgpu->dev_manufacturer, detectone_meta_info.manufacturer);
maybe_strdup_if_null(&cgpu->dev_product, detectone_meta_info.product);
maybe_strdup_if_null(&cgpu->dev_serial, detectone_meta_info.serial);
#endif
devices_new = realloc(devices_new, sizeof(struct cgpu_info *) * (total_devices_new + lpcount + 1));
devices_new[total_devices_new++] = cgpu;
if (lpcount > 1)
{
int tpp = cgpu->threads / lpcount;
struct cgpu_info **nlp_p, *slave;
nlp_p = &cgpu->next_proc;
for (int i = 1; i < lpcount; ++i)
{
slave = malloc(sizeof(*slave));
*slave = *cgpu;
slave->proc_id = i;
slave->threads = tpp;
devices_new[total_devices_new++] = slave;
*nlp_p = slave;
nlp_p = &slave->next_proc;
}
*nlp_p = NULL;
cgpu->proc_id = 0;
cgpu->threads -= (tpp * (lpcount - 1));
}
renumber_cgpu(cgpu);
cgpu->last_device_valid_work = time(NULL);
return true;
}
bool add_cgpu(struct cgpu_info *cgpu)
{
mutex_lock(&_add_cgpu_mutex);
const bool rv = _add_cgpu(cgpu);
mutex_unlock(&_add_cgpu_mutex);
return rv;
}
void add_cgpu_live(void *p)
{
add_cgpu(p);
}
bool add_cgpu_slave(struct cgpu_info *cgpu, struct cgpu_info *prev_cgpu)
{
if (!prev_cgpu)
return add_cgpu(cgpu);
while (prev_cgpu->next_proc)
prev_cgpu = prev_cgpu->next_proc;
mutex_lock(&_add_cgpu_mutex);
int old_total_devices = total_devices_new;
if (!_add_cgpu(cgpu))
{
mutex_unlock(&_add_cgpu_mutex);
return false;
}
prev_cgpu->next_proc = devices_new[old_total_devices];
mutex_unlock(&_add_cgpu_mutex);
return true;
}
const char *proc_set_device_help(struct cgpu_info * const proc, const char * const optname, const char * const newvalue, char * const replybuf, enum bfg_set_device_replytype * const out_success)
{
const struct bfg_set_device_definition *sdf;
char *p = replybuf;
bool first = true;
*out_success = SDR_HELP;
sdf = proc->set_device_funcs;
if (!sdf)
nohelp:
return "No help available";
size_t matchlen = 0;
if (newvalue)
while (newvalue[matchlen] && !isspace(newvalue[matchlen]))
++matchlen;
for ( ; sdf->optname; ++sdf)
{
if (!sdf->description)
continue;
if (matchlen && (strncasecmp(optname, sdf->optname, matchlen) || optname[matchlen]))
continue;
if (first)
first = false;
else
p++[0] = '\n';
p += sprintf(p, "%s: %s", sdf->optname, sdf->description);
}
if (replybuf == p)
goto nohelp;
return replybuf;
}
const char *proc_set_device_temp_cutoff(struct cgpu_info * const proc, const char * const optname, const char * const newvalue, char * const replybuf, enum bfg_set_device_replytype * const out_success)
{
int target_diff = proc->cutofftemp - proc->targettemp;
proc->cutofftemp = atoi(newvalue);
if (!proc->targettemp_user)
proc->targettemp = proc->cutofftemp - target_diff;
return NULL;
}
const char *proc_set_device_temp_target(struct cgpu_info * const proc, const char * const optname, const char * const newvalue, char * const replybuf, enum bfg_set_device_replytype * const out_success)
{
proc->targettemp = atoi(newvalue);
proc->targettemp_user = true;
return NULL;
}
static inline
void _set_auto_sdr(enum bfg_set_device_replytype * const out_success, const char * const rv, const char * const optname)
{
if (!rv)
*out_success = SDR_OK;
else
if (!strcasecmp(optname, "help"))
*out_success = SDR_HELP;
else
*out_success = SDR_ERR;
}
static
const char *_proc_set_device(struct cgpu_info * const proc, const char * const optname, const char * const newvalue, char * const replybuf, enum bfg_set_device_replytype * const out_success)
{
const struct bfg_set_device_definition *sdf;
sdf = proc->set_device_funcs;
if (!sdf)
{
*out_success = SDR_NOSUPP;
return "Device does not support setting parameters.";
}
for ( ; sdf->optname; ++sdf)
if (!strcasecmp(optname, sdf->optname))
{
*out_success = SDR_AUTO;
const char * const rv = sdf->func(proc, optname, newvalue, replybuf, out_success);
if (SDR_AUTO == *out_success)
_set_auto_sdr(out_success, rv, optname);
return rv;
}
if (!strcasecmp(optname, "help"))
return proc_set_device_help(proc, optname, newvalue, replybuf, out_success);
*out_success = SDR_UNKNOWN;
sprintf(replybuf, "Unknown option: %s", optname);
return replybuf;
}
static
const char *__proc_set_device(struct cgpu_info * const proc, char * const optname, char * const newvalue, char * const replybuf, enum bfg_set_device_replytype * const out_success)
{
if (proc->drv->set_device)
{
const char * const rv = proc->drv->set_device(proc, optname, newvalue, replybuf);
_set_auto_sdr(out_success, rv, optname);
return rv;
}
return _proc_set_device(proc, optname, newvalue, replybuf, out_success);
}
const char *proc_set_device(struct cgpu_info * const proc, char * const optname, char *newvalue, char * const replybuf, enum bfg_set_device_replytype * const out_success)
{
if (!newvalue)
newvalue = "";
const char * const rv = __proc_set_device(proc, optname, newvalue, replybuf, out_success);
switch (*out_success)
{
case SDR_NOSUPP:
case SDR_UNKNOWN:
if (!strcasecmp(optname, "temp-cutoff") || !strcasecmp(optname, "temp_cutoff"))
return proc_set_device_temp_cutoff(proc, optname, newvalue, replybuf, out_success);