@ -1,4 +1,5 @@
@@ -1,4 +1,5 @@
/*
* Copyright 2012 Andrew Smith
* Copyright 2012 Luke Dashjr
*
* This program is free software ; you can redistribute it and / or modify it
@ -12,6 +13,7 @@
@@ -12,6 +13,7 @@
# include <stdarg.h>
# include <stdio.h>
# include <unistd.h>
# include <math.h>
# include "logging.h"
# include "miner.h"
@ -21,10 +23,31 @@
@@ -21,10 +23,31 @@
# define BITSTREAM_FILENAME "fpgaminer_top_fixed7_197MHz.ncd"
# define BISTREAM_USER_ID "\2\4$B"
# define MODMINER_CUTOFF_TEMP 60.0
# define MODMINER_OVERHEAT_TEMP 50.0
# define MODMINER_OVERHEAT_CLOCK -10
# define MODMINER_HW_ERROR_PERCENT 0.75
# define MODMINER_MAX_CLOCK 220
# define MODMINER_DEF_CLOCK 200
# define MODMINER_MIN_CLOCK 160
# define MODMINER_CLOCK_DOWN -2
# define MODMINER_CLOCK_SET 0
# define MODMINER_CLOCK_UP 2
// Maximum how many good shares in a row means clock up
// 96 is ~34m22s at 200MH/s
# define MODMINER_TRY_UP 96
// Initially how many good shares in a row means clock up
// This is doubled each down clock until it reaches MODMINER_TRY_UP
// 6 is ~2m9s at 200MH/s
# define MODMINER_EARLY_UP 6
struct device_api modminer_api ;
static inline bool
_bailout ( int fd , struct cgpu_info * modminer , int prio , const char * fmt , . . . )
static inline bool _bailout ( int fd , struct cgpu_info * modminer , int prio , const char * fmt , . . . )
{
if ( fd ! = - 1 )
serial_close ( fd ) ;
@ -39,42 +62,112 @@ _bailout(int fd, struct cgpu_info*modminer, int prio, const char *fmt, ...)
@@ -39,42 +62,112 @@ _bailout(int fd, struct cgpu_info*modminer, int prio, const char *fmt, ...)
va_end ( ap ) ;
return false ;
}
# define bailout(...) return _bailout(fd, NULL, __VA_ARGS__);
static bool
modminer_detect_one ( const char * devpath )
{
int fd = serial_open ( devpath , 0 , 10 , true ) ;
if ( unlikely ( fd = = - 1 ) )
bailout ( LOG_DEBUG , " ModMiner detect: failed to open %s " , devpath ) ;
// 45 noops sent when detecting, in case the device was left in "start job" reading
static const char NOOP [ ] = " \0 \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff " ;
static bool modminer_detect_one ( const char * devpath )
{
char buf [ 0x100 ] ;
char * devname ;
ssize_t len ;
int fd ;
# ifdef WIN32
fd = serial_open ( devpath , 0 , 10 , true ) ;
if ( fd < 0 ) {
applog ( LOG_ERR , " ModMiner detect: failed to open %s " , devpath ) ;
return false ;
}
// Sending 45 noops, just in case the device was left in "start job" reading
( void ) ( write ( fd , " \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff \xff " , 45 ) ? : 0 ) ;
( void ) ( write ( fd , NOOP , sizeof ( NOOP ) - 1 ) ? : 0 ) ;
while ( serial_read ( fd , buf , sizeof ( buf ) ) > 0 )
;
if ( 1 ! = write ( fd , " \x01 " , 1 ) ) // Get version
bailout ( LOG_DEBUG , " ModMiner detect: write failed on %s (get version) " , devpath ) ;
// Version
if ( 1 ! = write ( fd , " \x01 " , 1 ) ) {
applog ( LOG_ERR , " ModMiner detect: version request failed on %s (%d) " , devpath , errno ) ;
goto shin ;
}
len = serial_read ( fd , buf , sizeof ( buf ) - 1 ) ;
if ( len < 1 )
bailout ( LOG_DEBUG , " ModMiner detect: no response to version request from %s " , devpath ) ;
if ( len < 1 ) {
applog ( LOG_ERR , " ModMiner detect: no version reply on %s (%d) " , devpath , errno ) ;
goto shin ;
}
buf [ len ] = ' \0 ' ;
char * devname = strdup ( buf ) ;
devname = strdup ( buf ) ;
applog ( LOG_DEBUG , " ModMiner identified as: %s " , devname ) ;
if ( 1 ! = write ( fd , " \x02 " , 1 ) ) // Get FPGA count
bailout ( LOG_DEBUG , " ModMiner detect: write failed on %s (get FPGA count) " , devpath ) ;
// FPGA count
if ( 1 ! = write ( fd , " \x02 " , 1 ) ) {
applog ( LOG_ERR , " ModMiner detect: FPGA count request failed on %s (%d) " , devpath , errno ) ;
goto shin ;
}
len = read ( fd , buf , 1 ) ;
if ( len < 1 )
bailout ( LOG_ERR , " ModMiner detect: timeout waiting for FPGA count from %s " , devpath ) ;
if ( ! buf [ 0 ] )
bailout ( LOG_ERR , " ModMiner detect: zero FPGAs reported on %s " , devpath ) ;
applog ( LOG_DEBUG , " ModMiner %s has %u FPGAs " , devname , buf [ 0 ] ) ;
if ( len < 1 ) {
applog ( LOG_ERR , " ModMiner detect: timeout waiting for FPGA count from %s (%d) " , devpath , errno ) ;
goto shin ;
}
serial_close ( fd ) ;
# else
fd = select_open ( devpath ) ;
if ( fd < 0 ) {
applog ( LOG_ERR , " ModMiner detect: failed to open %s " , devpath ) ;
return false ;
}
// Don't care if they fail
select_write ( fd , ( char * ) NOOP , sizeof ( NOOP ) - 1 ) ;
// Will clear up to a max of sizeof(buf)-1 chars
select_read ( fd , buf , sizeof ( buf ) - 1 ) ;
// Version
if ( select_write ( fd , " \x01 " , 1 ) < 1 ) {
applog ( LOG_ERR , " ModMiner detect: version request failed on %s (%d) " , devpath , errno ) ;
goto shin ;
}
if ( ( len = select_read ( fd , buf , sizeof ( buf ) - 1 ) ) < 1 ) {
applog ( LOG_ERR , " ModMiner detect: no version reply on %s (%d) " , devpath , errno ) ;
goto shin ;
}
buf [ len ] = ' \0 ' ;
devname = strdup ( buf ) ;
applog ( LOG_DEBUG , " ModMiner identified as: %s " , devname ) ;
// FPGA count
if ( select_write ( fd , " \x02 " , 1 ) < 1 ) {
applog ( LOG_ERR , " ModMiner detect: FPGA count request failed on %s (%d) " , devpath , errno ) ;
goto shin ;
}
if ( ( len = select_read ( fd , buf , 1 ) ) < 1 ) {
applog ( LOG_ERR , " ModMiner detect: no FPGA count reply on %s (%d) " , devpath , errno ) ;
goto shin ;
}
select_close ( fd ) ;
# endif
// TODO: check if it supports 2 byte temperatures and if not
// add a flag and set it use 1 byte and code to use the flag
if ( buf [ 0 ] = = 0 ) {
applog ( LOG_ERR , " ModMiner detect: zero FPGA count from %s " , devpath ) ;
goto shin ;
}
if ( buf [ 0 ] < 1 | | buf [ 0 ] > 4 ) {
applog ( LOG_ERR , " ModMiner detect: invalid FPGA count (%u) from %s " , buf [ 0 ] , devpath ) ;
goto shin ;
}
applog ( LOG_DEBUG , " ModMiner %s has %u FPGAs " , devname , buf [ 0 ] ) ;
struct cgpu_info * modminer ;
modminer = calloc ( 1 , sizeof ( * modminer ) ) ;
@ -85,24 +178,28 @@ modminer_detect_one(const char *devpath)
@@ -85,24 +178,28 @@ modminer_detect_one(const char *devpath)
modminer - > deven = DEV_ENABLED ;
modminer - > threads = buf [ 0 ] ;
modminer - > name = devname ;
modminer - > cutofftemp = 85 ;
return add_cgpu ( modminer ) ;
}
# undef bailout
shin :
# ifdef WIN32
serial_close ( fd ) ;
# else
select_close ( fd ) ;
# endif
return false ;
}
static int
modminer_detect_auto ( )
static int modminer_detect_auto ( )
{
return
serial_autodetect_udev ( modminer_detect_one , " BTCFPGA*ModMiner " ) ? :
serial_autodetect_udev ( modminer_detect_one , " *ModMiner* " ) ? :
serial_autodetect_devserial ( modminer_detect_one , " BTCFPGA_ModMiner " ) ? :
0 ;
}
static void
modminer_detect ( )
static void modminer_detect ( )
{
serial_detect_auto ( & modminer_api , modminer_detect_one , modminer_detect_auto ) ;
}
@ -138,12 +235,11 @@ select(fd+1, &fds, NULL, NULL, NULL); \
@@ -138,12 +235,11 @@ select(fd+1, &fds, NULL, NULL, NULL); \
bailout2 ( LOG_ERR , " %s %u: Wrong " eng " programming %s " , modminer - > api - > name , modminer - > device_id , modminer - > device_path ) ; \
} while ( 0 )
static bool
modminer_fpga_upload_bitstream ( struct cgpu_info * modminer )
static bool modminer_fpga_upload_bitstream ( struct cgpu_info * modminer )
{
fd_set fds ;
char buf [ 0x100 ] ;
unsigned char * ubuf = ( unsigned char * ) buf ;
unsigned char * ubuf = ( unsigned char * ) buf ;
unsigned long len ;
char * p ;
const char * fwfile = BITSTREAM_FILENAME ;
@ -215,10 +311,9 @@ modminer_fpga_upload_bitstream(struct cgpu_info*modminer)
@@ -215,10 +311,9 @@ modminer_fpga_upload_bitstream(struct cgpu_info*modminer)
return true ;
}
static bool
modminer_device_prepare ( struct cgpu_info * modminer )
static bool modminer_device_prepare ( struct cgpu_info * modminer )
{
int fd = serial_open ( modminer - > device_path , 0 , /*FIXME=-1*/ 300 0, true ) ;
int fd = serial_open ( modminer - > device_path , 0 , 1 0, true ) ;
if ( unlikely ( - 1 = = fd ) )
bailout ( LOG_ERR , " %s %u: Failed to open %s " , modminer - > api - > name , modminer - > device_id , modminer - > device_path ) ;
@ -234,12 +329,12 @@ modminer_device_prepare(struct cgpu_info *modminer)
@@ -234,12 +329,12 @@ modminer_device_prepare(struct cgpu_info *modminer)
# undef bailout
static bool
modminer_fpga_prepare ( struct thr_info * thr )
static bool modminer_fpga_prepare ( struct thr_info * thr )
{
struct cgpu_info * modminer = thr - > cgpu ;
// Don't need to lock the mutex here, since prepare runs from the main thread before the miner threads start
// Don't need to lock the mutex here,
// since prepare runs from the main thread before the miner threads start
if ( modminer - > device_fd = = - 1 & & ! modminer_device_prepare ( modminer ) )
return false ;
@ -247,43 +342,86 @@ modminer_fpga_prepare(struct thr_info *thr)
@@ -247,43 +342,86 @@ modminer_fpga_prepare(struct thr_info *thr)
state = thr - > cgpu_data = calloc ( 1 , sizeof ( struct modminer_fpga_state ) ) ;
state - > next_work_cmd [ 0 ] = ' \x08 ' ; // Send Job
state - > next_work_cmd [ 1 ] = thr - > device_thread ; // FPGA id
state - > shares_to_good = MODMINER_EARLY_UP ;
return true ;
}
static bool
modminer_reduce_clock ( struct thr_info * thr , bool needlock )
/*
* Clocking rules :
* If device exceeds cutoff temp - shut down - and decrease the clock by
* MODMINER_OVERHEAT_CLOCK for when it restarts
*
* When to clock down :
* If device overheats
* or
* If device gets MODMINER_HW_ERROR_PERCENT errors since last clock up or down
* if clock is < = default it requires 2 HW to do this test
* if clock is > default it only requires 1 HW to do this test
*
* When to clock up :
* If device gets shares_to_good good shares in a row
*
* N . B . clock must always be a multiple of 2
*/
static bool modminer_delta_clock ( struct thr_info * thr , bool needlock , int delta , bool temp )
{
struct cgpu_info * modminer = thr - > cgpu ;
struct cgpu_info * modminer = thr - > cgpu ;
struct modminer_fpga_state * state = thr - > cgpu_data ;
char fpgaid = thr - > device_thread ;
int fd = modminer - > device_fd ;
unsigned char cmd [ 6 ] , buf [ 1 ] ;
struct timeval now ;
gettimeofday ( & now , NULL ) ;
// Only do once if multiple shares per work or multiple reasons
// Since the temperature down clock test is first in the code this is OK
if ( tdiff ( & now , & ( state - > last_changed ) ) < 0.5 )
return false ;
if ( state - > clock < = 100 )
// Update before possibly aborting to avoid repeating unnecessarily
memcpy ( & ( state - > last_changed ) , & now , sizeof ( struct timeval ) ) ;
state - > shares = 0 ;
state - > shares_last_hw = 0 ;
state - > hw_errors = 0 ;
// If drop requested due to temperature, clock drop is always allowed
if ( ! temp & & delta < 0 & & state - > clock < = MODMINER_MIN_CLOCK )
return false ;
if ( delta > 0 & & state - > clock > = MODMINER_MAX_CLOCK )
return false ;
if ( delta < 0 ) {
if ( ( state - > shares_to_good * 2 ) < MODMINER_TRY_UP )
state - > shares_to_good * = 2 ;
else
state - > shares_to_good = MODMINER_TRY_UP ;
}
state - > clock + = delta ;
cmd [ 0 ] = ' \x06 ' ; // set clock speed
cmd [ 1 ] = fpgaid ;
cmd [ 2 ] = state - > clock - = 2 ;
cmd [ 2 ] = state - > clock ;
cmd [ 3 ] = cmd [ 4 ] = cmd [ 5 ] = ' \0 ' ;
if ( needlock )
mutex_lock ( & modminer - > device_mutex ) ;
if ( 6 ! = write ( fd , cmd , 6 ) )
bailout2 ( LOG_ERR , " %s %u.%u: Error writing (set clock speed) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
bailout2 ( LOG_ERR , " %s%u.%u: Error writing (set clock speed) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
if ( serial_read ( fd , & buf , 1 ) ! = 1 )
bailout2 ( LOG_ERR , " %s %u.%u: Error reading (set clock speed) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
bailout2 ( LOG_ERR , " %s%u.%u: Error reading (set clock speed) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
if ( needlock )
mutex_unlock ( & modminer - > device_mutex ) ;
applog ( LOG_WARNING , " %s %u.%u: Setting clock speed to %u " , modminer - > api - > name , modminer - > device_id , fpgaid , state - > clock ) ;
applog ( LOG_WARNING , " %s%u.%u: Set clock speed %s to %u " , modminer - > api - > name , modminer - > device_id , fpgaid , ( delta < 0 ) ? " down " : ( delta > 0 ? " up " : " " ) , state - > clock ) ;
return true ;
}
static bool
modminer_fpga_init ( struct thr_info * thr )
static bool modminer_fpga_init ( struct thr_info * thr )
{
struct cgpu_info * modminer = thr - > cgpu ;
struct modminer_fpga_state * state = thr - > cgpu_data ;
@ -303,20 +441,20 @@ modminer_fpga_init(struct thr_info *thr)
@@ -303,20 +441,20 @@ modminer_fpga_init(struct thr_info *thr)
cmd [ 0 ] = ' \x04 ' ; // Read USER code (bitstream id)
cmd [ 1 ] = fpgaid ;
if ( write ( fd , cmd , 2 ) ! = 2 )
bailout2 ( LOG_ERR , " %s %u.%u: Error writing (read USER code) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
bailout2 ( LOG_ERR , " %s%u.%u: Error writing (read USER code) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
if ( serial_read ( fd , buf , 4 ) ! = 4 )
bailout2 ( LOG_ERR , " %s %u.%u: Error reading (read USER code) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
bailout2 ( LOG_ERR , " %s%u.%u: Error reading (read USER code) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
if ( memcmp ( buf , BISTREAM_USER_ID , 4 ) ) {
applog ( LOG_ERR , " %s %u.%u: FPGA not programmed " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
applog ( LOG_ERR , " %s%u.%u: FPGA not programmed " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
if ( ! modminer_fpga_upload_bitstream ( modminer ) )
return false ;
}
else
applog ( LOG_DEBUG , " %s %u.%u: FPGA is already programmed :) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
applog ( LOG_DEBUG , " %s%u.%u: FPGA is already programmed :) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
state - > clock = 212 ; // Will be reduced to 210 by modminer_reduce_clock
modminer_re duc e_clock ( thr , false ) ;
state - > clock = MODMINER_DEF_CLOCK ;
modminer_delta _clock ( thr , false , MODMINER_CLOCK_SET , false ) ;
mutex_unlock ( & modminer - > device_mutex ) ;
@ -325,8 +463,7 @@ modminer_fpga_init(struct thr_info *thr)
@@ -325,8 +463,7 @@ modminer_fpga_init(struct thr_info *thr)
return true ;
}
static void
get_modminer_statline_before ( char * buf , struct cgpu_info * modminer )
static void get_modminer_statline_before ( char * buf , struct cgpu_info * modminer )
{
char info [ 18 ] = " | " ;
int tc = modminer - > threads ;
@ -337,16 +474,16 @@ get_modminer_statline_before(char *buf, struct cgpu_info *modminer)
@@ -337,16 +474,16 @@ get_modminer_statline_before(char *buf, struct cgpu_info *modminer)
tc = 4 ;
for ( i = tc - 1 ; i > = 0 ; - - i ) {
struct thr_info * thr = modminer - > thr [ i ] ;
struct thr_info * thr = modminer - > thr [ i ] ;
struct modminer_fpga_state * state = thr - > cgpu_data ;
unsigned char temp = state - > temp ;
float temp = state - > temp ;
info [ i * 3 + 2 ] = ' / ' ;
if ( temp ) {
havetemp = true ;
if ( temp > 9 )
info [ i * 3 + 0 ] = 0x30 + ( temp / 10 ) ;
info [ i * 3 + 1 ] = 0x30 + ( temp % 10 ) ;
info [ i * 3 + 1 ] = 0x30 + ( ( int ) temp % 10 ) ;
}
}
if ( havetemp ) {
@ -358,8 +495,7 @@ get_modminer_statline_before(char *buf, struct cgpu_info *modminer)
@@ -358,8 +495,7 @@ get_modminer_statline_before(char *buf, struct cgpu_info *modminer)
strcat ( buf , " | " ) ;
}
static bool
modminer_prepare_next_work ( struct modminer_fpga_state * state , struct work * work )
static bool modminer_prepare_next_work ( struct modminer_fpga_state * state , struct work * work )
{
char * midstate = state - > next_work_cmd + 2 ;
char * taildata = midstate + 32 ;
@ -370,11 +506,10 @@ modminer_prepare_next_work(struct modminer_fpga_state*state, struct work*work)
@@ -370,11 +506,10 @@ modminer_prepare_next_work(struct modminer_fpga_state*state, struct work*work)
return true ;
}
static bool
modminer_start_work ( struct thr_info * thr )
static bool modminer_start_work ( struct thr_info * thr )
{
fd_set fds ;
struct cgpu_info * modminer = thr - > cgpu ;
struct cgpu_info * modminer = thr - > cgpu ;
struct modminer_fpga_state * state = thr - > cgpu_data ;
char fpgaid = thr - > device_thread ;
SOCKETTYPE fd = modminer - > device_fd ;
@ -383,7 +518,7 @@ fd_set fds;
@@ -383,7 +518,7 @@ fd_set fds;
mutex_lock ( & modminer - > device_mutex ) ;
if ( 46 ! = write ( fd , state - > next_work_cmd , 46 ) )
bailout2 ( LOG_ERR , " %s %u.%u: Error writing (start work) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
bailout2 ( LOG_ERR , " %s%u.%u: Error writing (start work) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
gettimeofday ( & state - > tv_workstart , NULL ) ;
state - > hashes = 0 ;
status_read ( " start work " ) ;
@ -394,42 +529,48 @@ fd_set fds;
@@ -394,42 +529,48 @@ fd_set fds;
# define work_restart(thr) thr->work_restart
static uint64_t
modminer_process_results ( struct thr_info * thr )
static uint64_t modminer_process_results ( struct thr_info * thr )
{
struct cgpu_info * modminer = thr - > cgpu ;
struct cgpu_info * modminer = thr - > cgpu ;
struct modminer_fpga_state * state = thr - > cgpu_data ;
char fpgaid = thr - > device_thread ;
int fd = modminer - > device_fd ;
struct work * work = & state - > running_work ;
char cmd [ 2 ] , temperature ;
char cmd [ 2 ] , temperature [ 2 ] ;
uint32_t nonce ;
long iter ;
int curr_hw_errors ;
cmd [ 0 ] = ' \x0a ' ;
uint32_t curr_hw_errors ;
// \x0a is 1 byte temperature
// \x0d is 2 byte temperature
cmd [ 0 ] = ' \x0d ' ;
cmd [ 1 ] = fpgaid ;
mutex_lock ( & modminer - > device_mutex ) ;
if ( 2 = = write ( fd , cmd , 2 ) & & read ( fd , & temperature , 1 ) = = 1 )
if ( 2 = = write ( fd , cmd , 2 ) & & read ( fd , & temperature , 2 ) = = 2 )
{
state - > temp = temperature ;
// Only accurate to 2 and a bit places
state - > temp = roundf ( ( temperature [ 1 ] * 256.0 + temperature [ 0 ] ) / 0.128 ) / 1000.0 ;
if ( ! fpgaid )
modminer - > temp = ( float ) temperature ;
if ( temperature > modminer - > cutofftemp - 2 ) {
if ( temperature > modminer - > cutofftemp ) {
applog ( LOG_WARNING , " %s %u.%u: Hit thermal cutoff limit, disabling device! " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
modminer - > deven = DEV_RECOVER ;
modminer - > temp = state - > temp ;
if ( state - > temp > = MODMINER_OVERHEAT_TEMP ) {
if ( state - > temp > = MODMINER_CUTOFF_TEMP ) {
applog ( LOG_WARNING , " %s%u.%u: Hit thermal cutoff limit (%f) at %f, disabling device! " , modminer - > api - > name , modminer - > device_id , fpgaid , MODMINER_CUTOFF_TEMP , state - > temp ) ;
modminer_delta_clock ( thr , true , MODMINER_OVERHEAT_CLOCK , true ) ;
modminer - > deven = DEV_RECOVER ;
modminer - > device_last_not_well = time ( NULL ) ;
modminer - > device_not_well_reason = REASON_DEV_THERMAL_CUTOFF ;
+ + modminer - > dev_thermal_cutoff_count ;
modminer - > dev_thermal_cutoff_count + + ;
} else {
time_t now = time ( NULL ) ;
if ( state - > last_cutoff_reduced ! = now ) {
state - > last_cutoff_reduced = now ;
modminer_reduce_clock ( thr , false ) ;
}
applog ( LOG_WARNING , " %s%u.%u Overheat limit (%f) reached %f " , modminer - > api - > name , modminer - > device_id , fpgaid , MODMINER_OVERHEAT_TEMP , state - > temp ) ;
modminer_delta_clock ( thr , true , MODMINER_CLOCK_DOWN , true ) ;
modminer - > device_last_not_well = time ( NULL ) ;
modminer - > device_not_well_reason = REASON_DEV_OVER_HEAT ;
modminer - > dev_over_heat_count + + ;
}
}
}
@ -438,24 +579,33 @@ modminer_process_results(struct thr_info*thr)
@@ -438,24 +579,33 @@ modminer_process_results(struct thr_info*thr)
iter = 200 ;
while ( 1 ) {
if ( write ( fd , cmd , 2 ) ! = 2 )
bailout2 ( LOG_ERR , " %s %u.%u: Error reading (get nonce) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
bailout2 ( LOG_ERR , " %s%u.%u: Error reading (get nonce) " , modminer - > api - > name , modminer - > device_id , fpgaid ) ;
serial_read ( fd , & nonce , 4 ) ;
mutex_unlock ( & modminer - > device_mutex ) ;
if ( memcmp ( & nonce , " \xff \xff \xff \xff " , 4 ) ) {
state - > shares + + ;
state - > no_nonce_counter = 0 ;
curr_hw_errors = modminer - > hw_errors ;
curr_hw_errors = state - > hw_errors ;
submit_nonce ( thr , work , nonce ) ;
if ( modminer - > hw_errors > curr_hw_errors ) {
if ( modminer - > hw_errors * 100 > 1000 + state - > good_share_counter )
// Only reduce clocks if hardware errors are more than ~1% of results
modminer_reduce_clock ( thr , true ) ;
if ( state - > hw_errors > curr_hw_errors ) {
state - > shares_last_hw = state - > shares ;
if ( state - > clock > MODMINER_DEF_CLOCK | | state - > hw_errors > 1 ) {
float pct = ( state - > hw_errors * 100.0 / ( state - > shares ? : 1.0 ) ) ;
if ( pct > = MODMINER_HW_ERROR_PERCENT )
modminer_delta_clock ( thr , true , MODMINER_CLOCK_DOWN , false ) ;
}
} else {
// If we've reached the required good shares in a row then clock up
if ( ( state - > shares - state - > shares_last_hw ) > = state - > shares_to_good )
modminer_delta_clock ( thr , true , MODMINER_CLOCK_UP , false ) ;
}
}
else
if ( + + state - > no_nonce_counter > 18000 ) {
} else if ( + + state - > no_nonce_counter > 18000 ) {
// TODO: NFI what this is - but will be gone
// when the threading rewrite is done
state - > no_nonce_counter = 0 ;
modminer_reduce_clock ( thr , true ) ;
modminer_delta _clock ( thr , true , MODMINER_CLOCK_DOWN , fals e ) ;
}
if ( work_restart ( thr ) )
break ;
usleep ( 10000 ) ;
@ -480,8 +630,7 @@ modminer_process_results(struct thr_info*thr)
@@ -480,8 +630,7 @@ modminer_process_results(struct thr_info*thr)
return hashes ;
}
static int64_t
modminer_scanhash ( struct thr_info * thr , struct work * work , int64_t __maybe_unused max_nonce )
static int64_t modminer_scanhash ( struct thr_info * thr , struct work * work , int64_t __maybe_unused max_nonce )
{
struct modminer_fpga_state * state = thr - > cgpu_data ;
int64_t hashes = 0 ;
@ -508,8 +657,14 @@ modminer_scanhash(struct thr_info*thr, struct work*work, int64_t __maybe_unused
@@ -508,8 +657,14 @@ modminer_scanhash(struct thr_info*thr, struct work*work, int64_t __maybe_unused
return hashes ;
}
static void
modminer_fpga_shutdown ( struct thr_info * thr )
static void modminer_hw_error ( struct thr_info * thr )
{
struct modminer_fpga_state * state = thr - > cgpu_data ;
state - > hw_errors + + ;
}
static void modminer_fpga_shutdown ( struct thr_info * thr )
{
free ( thr - > cgpu_data ) ;
}
@ -522,5 +677,6 @@ struct device_api modminer_api = {
@@ -522,5 +677,6 @@ struct device_api modminer_api = {
. thread_prepare = modminer_fpga_prepare ,
. thread_init = modminer_fpga_init ,
. scanhash = modminer_scanhash ,
. hw_error = modminer_hw_error ,
. thread_shutdown = modminer_fpga_shutdown ,
} ;
Paul Sheppard
12 years ago