/* Figure out how many jobs to send. */
static int hfa_jobs(struct cgpu_info *hashfast, struct hashfast_info *info)
{
int ret = 0;
if (unlikely(info->overheat)) {
/* Acknowledge and notify of new condition.*/
if (info->overheat < 0) {
applog(LOG_WARNING, "%s %d: Hit overheat temp %.1f, throttling!",
hashfast->drv->name, hashfast->device_id, info->max_temp);
/* Value of 1 means acknowledged overheat */
info->overheat = 1;
}
goto out;
}
mutex_lock(&info->lock);
ret = info->usb_init_base.inflight_target - HF_SEQUENCE_DISTANCE(info->hash_sequence_head, info->device_sequence_tail);
/* Place an upper limit on how many jobs to queue to prevent sending
* more work than the device can use after a period of outage. */
if (ret > info->usb_init_base.inflight_target)
ret = info->usb_init_base.inflight_target;
mutex_unlock(&info->lock);
out:
return ret;
}
static void hfa_parse_gwq_status(struct cgpu_info *hashfast, struct hashfast_info *info,
struct hf_header *h)
{
struct hf_gwq_data *g = (struct hf_gwq_data *)(h + 1);
struct work *work;
applog(LOG_DEBUG, "HFA %d: OP_GWQ_STATUS, device_head %4d tail %4d my tail %4d shed %3d inflight %4d",
hashfast->device_id, g->sequence_head, g->sequence_tail, info->hash_sequence_tail,
g->shed_count, HF_SEQUENCE_DISTANCE(info->hash_sequence_head,g->sequence_tail));
mutex_lock(&info->lock);
info->hash_count += g->hash_count;
info->device_sequence_head = g->sequence_head;
info->device_sequence_tail = g->sequence_tail;
info->shed_count = g->shed_count;
/* Free any work that is no longer required */
while (info->device_sequence_tail != info->hash_sequence_tail) {
if (++info->hash_sequence_tail >= info->num_sequence)
info->hash_sequence_tail = 0;
if (unlikely(!(work = info->works[info->hash_sequence_tail]))) {
applog(LOG_ERR, "HFA %d: Bad work sequence tail",
hashfast->device_id);
hashfast->shutdown = true;
break;
}
applog(LOG_DEBUG, "HFA %d: Completing work on hash_sequence_tail %d",
hashfast->device_id, info->hash_sequence_tail);
free_work(work);
info->works[info->hash_sequence_tail] = NULL;
}
mutex_unlock(&info->lock);
}
/* Figure out how many jobs to send. */
static int hfa_jobs(struct hashfast_info *info)
{
int ret;
mutex_lock(&info->lock);
ret = info->usb_init_base.inflight_target - HF_SEQUENCE_DISTANCE(info->hash_sequence_head, info->device_sequence_tail);
/* Place an upper limit on how many jobs to queue to prevent sending
* more work than the device can use after a period of outage. */
if (ret > info->usb_init_base.inflight_target)
ret = info->usb_init_base.inflight_target;
mutex_unlock(&info->lock);
return ret;
}
static void hfa_parse_gwq_status(struct cgpu_info *hashfast, struct hashfast_info *info,
struct hf_header *h)
{
struct hf_gwq_data *g = (struct hf_gwq_data *)(h + 1);
struct work *work;
applog(LOG_DEBUG, "HFA %d: OP_GWQ_STATUS, device_head %4d tail %4d my tail %4d shed %3d inflight %4d",
hashfast->device_id, g->sequence_head, g->sequence_tail, info->hash_sequence_tail,
g->shed_count, HF_SEQUENCE_DISTANCE(info->hash_sequence_head,g->sequence_tail));
/* This is a special flag that the thermal overload has been tripped */
if (unlikely(h->core_address & 0x80)) {
applog(LOG_WARNING, "HFA %d Thermal overload tripped! Resetting device",
hashfast->device_id);
hfa_send_shutdown(hashfast);
if (hfa_reset(hashfast, info)) {
applog(LOG_NOTICE, "HFA %d: Succesfully reset, continuing operation",
hashfast->device_id);
return;
}
applog(LOG_WARNING, "HFA %d Failed to reset device, killing off thread to allow re-hotplug",
hashfast->device_id);
usb_nodev(hashfast);
return;
}
mutex_lock(&info->lock);
info->hash_count += g->hash_count;
info->device_sequence_head = g->sequence_head;
info->device_sequence_tail = g->sequence_tail;
info->shed_count = g->shed_count;
/* Free any work that is no longer required */
while (info->device_sequence_tail != info->hash_sequence_tail) {
if (++info->hash_sequence_tail >= info->num_sequence)
info->hash_sequence_tail = 0;
if (unlikely(!(work = info->works[info->hash_sequence_tail]))) {
applog(LOG_ERR, "HFA %d: Bad work sequence tail",
hashfast->device_id);
hashfast->shutdown = true;
break;
}
applog(LOG_DEBUG, "HFA %d: Completing work on hash_sequence_tail %d",
hashfast->device_id, info->hash_sequence_tail);
free_work(work);
info->works[info->hash_sequence_tail] = NULL;
}
mutex_unlock(&info->lock);
}
