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Implement primary scanwork loop submitting work and returning hashrate for hashfast.

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This commit is contained in:
Con Kolivas 2013-10-14 17:39:33 +11:00
parent 8b24b3d35e
commit fe945e18ff
2 changed files with 92 additions and 14 deletions
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104
driver-hashfast.c
View File

@ -99,8 +99,7 @@ static const struct hf_cmd hf_cmds[] = {
* packet body. */
static bool hashfast_send_frame(struct cgpu_info *hashfast, uint8_t opcode,
uint8_t chip, uint8_t core, uint16_t hdata,
uint8_t *data, int len)
uint16_t hdata, uint8_t *data, int len)
{
int tx_length, ret, amount, id = hashfast->device_id;
uint8_t packet[256];
@ -108,8 +107,8 @@ static bool hashfast_send_frame(struct cgpu_info *hashfast, uint8_t opcode,
p->preamble = HF_PREAMBLE;
p->operation_code = opcode;
p->chip_address = chip;
p->core_address = core;
p->chip_address = HF_GWQ_ADDRESS;
p->core_address = 0;
p->hdata = htole16(hdata);
p->data_length = len / 4;
p->crc8 = hf_crc8(packet);
@ -118,8 +117,6 @@ static bool hashfast_send_frame(struct cgpu_info *hashfast, uint8_t opcode,
memcpy(&packet[sizeof(struct hf_header)], data, len);
tx_length = sizeof(struct hf_header) + len;
tx_length = sizeof(struct hf_header);
ret = usb_write(hashfast, (char *)packet, tx_length, &amount,
hf_cmds[opcode].usb_cmd);
if (unlikely(ret < 0 || amount != tx_length)) {
@ -389,24 +386,103 @@ static bool hashfast_prepare(struct thr_info *thr)
return true;
}
/* Figure out how many jobs to send. */
static int __hashfast_jobs(struct hashfast_info *info)
{
return info->usb_init_base.inflight_target - GWQ_SEQUENCE_DISTANCE(info->hash_sequence, info->device_sequence_tail);
}
static int hashfast_jobs(struct hashfast_info *info)
{
int ret;
mutex_lock(&info->lock);
ret = __hashfast_jobs(info);
mutex_unlock(&info->lock);
return ret;
}
static int64_t hashfast_scanwork(struct thr_info *thr)
{
struct cgpu_info *hashfast = thr->cgpu;
struct hashfast_info *info = hashfast->device_data;
bool ret;
int64_t hashes;
int jobs, ret;
if (unlikely(thr->work_restart)) {
ret = hashfast_send_frame(hashfast, OP_WORK_RESTART, HF_GWQ_ADDRESS, 0, 0, (uint8_t *)NULL, 0);
if (unlikely(!ret))
ret = hashfast_reset(hashfast, info);
restart:
ret = hashfast_send_frame(hashfast, OP_WORK_RESTART, 0, (uint8_t *)NULL, 0);
if (unlikely(!ret)) {
applog(LOG_ERR, "HFA %d: Failed to reset after write failure, disabling",
hashfast->device_id);
return -1;
ret = hashfast_reset(hashfast, info);
if (unlikely(!ret)) {
applog(LOG_ERR, "HFA %d: Failed to reset after write failure, disabling",
hashfast->device_id);
return -1;
}
}
}
return 0;
jobs = hashfast_jobs(info);
if (!jobs) {
ret = restart_wait(thr, 100);
if (unlikely(!ret))
goto restart;
jobs = hashfast_jobs(info);
}
while (jobs > 0) {
struct hf_hash_usb op_hash_data;
struct work *work;
uint64_t intdiff;
int i, sequence;
uint32_t *p;
/* This is a blocking function if there's no work */
work = get_work(thr, thr->id);
/* Assemble the data frame and send the OP_HASH packet */
memcpy(op_hash_data.midstate, work->midstate, sizeof(op_hash_data.midstate));
memcpy(op_hash_data.merkle_residual, work->data + 64, 4);
p = (uint32_t *)(work->data + 64 + 4);
op_hash_data.timestamp = *p++;
op_hash_data.bits = *p++;
op_hash_data.nonce_loops = 0;
/* Set the number of leading zeroes to look for based on diff.
* Diff 1 = 32, Diff 2 = 33, Diff 4 = 34 etc. */
intdiff = (uint64_t)work->device_diff;
for (i = 31; intdiff; i++, intdiff >>= 1);
op_hash_data.search_difficulty = i;
if ((sequence = info->hash_sequence + 1) >= HF_NUM_SEQUENCE)
sequence = 0;
ret = hashfast_send_frame(hashfast, OP_HASH, sequence, (uint8_t *)&op_hash_data, sizeof(op_hash_data));
if (unlikely(!ret)) {
ret = hashfast_reset(hashfast, info);
if (unlikely(!ret)) {
applog(LOG_ERR, "HFA %d: Failed to reset after write failure, disabling",
hashfast->device_id);
return -1;
}
}
mutex_lock(&info->lock);
info->hash_sequence = sequence;
*(info->works + info->hash_sequence) = work;
jobs = __hashfast_jobs(info);
mutex_unlock(&info->lock);
applog(LOG_DEBUG, "HFA %d: OP_HASH sequence %d search_difficulty %d work_difficulty %g",
hashfast->device_id, info->hash_sequence, op_hash_data.search_difficulty, work->work_difficulty);
}
mutex_lock(&info->lock);
hashes = info->hash_count;
info->hash_count = 0;
mutex_unlock(&info->lock);
return hashes;
}
static struct api_data *hashfast_api_stats(struct cgpu_info __maybe_unused *cgpu)

2
driver-hashfast.h
View File

@ -18,6 +18,7 @@
#define HASHFAST_MINER_THREADS 1
#define HF_NUM_SEQUENCE 256
#define GWQ_SEQUENCE_DISTANCE(tx,rx) ((tx)>=(rx)?((tx)-(rx)):(HF_NUM_SEQUENCE+(tx)-(rx)))
// Matching fields for hf_statistics, but large #'s for local accumulation, per-die
struct hf_long_statistics {
@ -49,6 +50,7 @@ struct hashfast_info {
uint16_t device_sequence_head; // The most recent sequence number the device dispatched
uint16_t device_sequence_tail; // The most recently completed job in the device
uint16_t hash_sequence_tail; // Follows device_sequence_tail around to free work
int64_t hash_count;
pthread_t read_thr;
};