From 3bf3df09b77a899932f17d896d206001846e9d59 Mon Sep 17 00:00:00 2001
From: Noel Maersk <veox@wemakethings.net>
Date: Wed, 15 Jan 2014 17:26:18 +0200
Subject: [PATCH] Bump version to 4.0.0.

First sgminer release.
---
 NEWS         | 5262 --------------------------------------------------
 NEWS.md      |   19 +
 configure.ac |    6 +-
 3 files changed, 22 insertions(+), 5265 deletions(-)
 delete mode 100644 NEWS
 create mode 100644 NEWS.md

diff --git a/NEWS b/NEWS
deleted file mode 100644
index 48f7f7f0..00000000
--- a/NEWS
+++ /dev/null
@@ -1,5262 +0,0 @@
-Version 3.7.2 - 5th November 2013
-
-- Clean up completely on avalon shutdown.
-- Use cgsem timed waits in avalon driver to not miss any queued wake ups to
-account for async messages coming during a flush work.
-- Statline before is too long on icarus that doesn't have monitoring.
-- Different windows+usb combinations respond with varying levels of reliability
-wrt timeouts so use a nominal extra 40ms before cancelling transfers that fail
-to time out on their own.
-- Do all hotplug_process under the write mining_thr_lock
-- Fix for opt_worktime on big endian machines.
-- Correct set_blockdiff for big endian machines.
-- Make sure cgpu exists in the restart threads loop in cases of hotplug etc.
-- Treat usb write timeout errors as unrecoverable.
-- Transfer errors are filtered out in usbutils now so no need to look for them
-in NODEV checks.
-- Remove now unused entries from struct cg_usb_device
-- Do not double up with checking for end of timeout measurements in usb
-read/write.
-- Do get_work in fill_queue without holding other locks.
-- Initialise usb after all the locks and conditionals are initialised.
-- Use only a trylock in flush queue to prevent deadlocks.
-- Add a wr_trylock wrapper for pthread rw lock write trylock.
-- Scale diff for scrypt when testing for block solves.
-- Fix for non curses build.
-
-
-Version 3.7.0 - 4th November 2013
-
-- Use WRITEIOERR macro check for all usb writes.
-- Always use a usb read buffer instead of having to explicitly enable it.
-- Force unlocking of the console lock on restart to avoid corrupting the console
-state when we finally quit.
-- Never wait indefinitely for a pthread conditional in the hash_pop loop in case
-the work scheduler misses the last wakeup.
-- Make hash_pop signal the work scheduler each time it waits on the conditional
-that it should look for more work.
-- Discriminate between libusb transfer errors and regular libusb errors and make
-sure to capture them all.
-- Always read a full sized transfer for bulk reads.
-- Deprecate preferred packet size functions in usbutils since they're unhelpful.
-- Copy known transferred amount back to buffer for usb reads instead of
-requested length.
-- Treat timeout errors on usb writes as IO errors.
-- Ignore iManufacturer from bitfury devices to support bluefury as well as
-redfury.
-- Add more debugging info for when usb details don't match.
-- Look for timeout overruns in usb read/write.
-- Use an int for usb_read/write to identify overruns.
-- Use the callback timeout as a safety mechanism only on windows.
-- Instead of using complicated sleeps to emulate characters per second on usb
-writes, submit only as many characters as can be transferred per usb poll of
-1ms, and use timeouts in bulk transfers, cancelling transfers only as a
-failsafe.
-- Remove discarded work from quota used.
-- Display works completed in summary and API data.
-- Store how many work items are worked on per pool.
-- Make each pool store its on reference for what the most current block is and
-fine tune management of block change in shared pool failover strategies using
-the information.
-- Rationalise use of current_hash to a single hex string the length of the
-previous block and display only the first non zero hex chars of the block in the
-status window.
-- Update uthash to latest.
-- show_hash doesn't know the size of the string so hard code the max size.
-- Remove as many initial zeroes as exist on share display, abstracting out a
-hash show function to use across different submission mechanisms.
-- Add missing endian swap functions for 64bits.
-- Sanity check for absurd target setting and divide by zero.
-- Abstract out conversion of a 256 bit endian number to a double, correcting
-errors and use it for determining any magnitude share diff.
-- Avoid the extra generation of a byte flipped hash2 in struct work and directly
-use the LE work hash.
-- Add a sanity check to avoid divide by zero crashes in set_target
-- Calculate diff from target accurately for all 256 bits.
-- Set a true 256bit binary target based on any diff value in set_target()
-- Provide a copy_work_noffset function for copying a work struct but changing
-its ntime.
-- Make calls to flush queue and flush work asynchronous wrt to the main work
-loops.
-- Share is also above target for submit noffset nonce.
-- Use round for displaying current pool diff.
-- Use round for stratum share diff display instead of floor.
-- Use round instead of floor for displayed pool difficulty.
-- Allow arbitrary diffs to be tested against nonces via a test_nonce_diff
-function.
-- Abstract out the rebuilding of hash2 in work.
-- Share is above, not below target, when it doesn't meet it.
-- Add the ability to add uint8 and uint16 entities to api data.
-- Use a non blocking connect with a 1 second select timeout when initiating
-stratum to allow us to iterate over all IPs returned by getaddrinfo in round
-robin DNS pools.
-- Minor style changes to output.
-- Revert two different hash_sequence(_head)'s to one variable, use
-HF_SEQUENCE_DISTANCE in both places
-- Remove duplicate HF_SEQUENCE_DISTANCE() macro, and duplicate hash_sequence
-from info structure
-- Change SEQUENCE_DISTANCE() macro to HF_SEQUENCE_DISTANCE()
-- Structure changes for OP_NONCE, add big endian header
-- klondike - initialise stat_lock
-- klondike - better to unlock locks than to lock them twice :)
-- Add copyright notice to knc driver.
-- Trivial style changes to knc driver.
-- Improve performance of work generation by optimizing hex2bin and bin2hex
-- klondike - change options to clock and temptarget only
-- klondike - fix another uninit dev warning
-- klondike - downgrade 'late update' but add an idle detect - and correct error
-levels
-- klondike - fix isc uninit warning
-- Use a mutex to protect data in the knc structure, to prevent loading more work
-during a flush, and unlock and return to main between calls to get_queued_work.
-- Use the existing device_data for knc state data.
-- Only count successful nonces as hashrate in the knc driver.
-- Fix trivial warnings in knc driver.
-- Add KNC to api
-- klondike - drop the device for hotplug if it's unresponsive
-- usbutils - usb_nodev() allow a driver to drop a device
-- klondike - single 'shutdown' and ensure it happens
-- klondike remove SCNu8 - unsupported on windows
-- Correctly calculate sleep_estimate in usbutils that may have been preventing
-usecps from working.
-- Use a sanity check on timeout on windows.
-- Better HW error count; disable permanently those cores which fail often
-- KnC driver: knc-spi-fpga ASIC driver
-- Fixup jansson & libusb include paths when using separate build directory
-- 'llround' is more suitable here than 'roundl'
-- Silence warning if MAX/MIN is already defined
-- Remove prebuild ccan/opt dependencies
-- Reinstate block solve testing.
-- Dramatically simplify the calculation of blockdiff.
-- Simplify the set_target function, allowing it to work properly for fractional
-diffs.
-- Merge hashfast driver
-- Merge KnC driver
-
-
-Version 3.6.6 - 26th October 2013
-
-- Remove inappropriate extra locking in _usb_transfer_read
-
-
-Version 3.6.5 - 26th October 2013
-
-- klondike - fix uninitialised dev bug
-- Adjust the binary ntime data in submit_noffset_nonce even when there is no hex
-ntime string for eg. gbt.
-- Put an entry into the work struct telling drivers how much they can roll the
-ntime themselves.
-- Only set libusb cancellable status if the transfer succeeds.
-- Remove the applog on miner threads dying to prevent deadlocks on exit.
-- Do one extra guaranteed libusb event handling before testing if there are any
-pending async usb transfers.
-- Use a linked list for all usb transfers instead of just cancellable ones.
-- Provide a mechanism for informing drivers of updated work templates for
-stratum and gbt mining.
-- Add cancellable transfers correctly to the ct_list
-- Check for presence of thr in icarus get nonce for startup nonce testing to
-work.
-- Use cancellable usb transfers in the icarus driver to avoid having to loop and
-poll when waiting for a response and to speed up work restart response time.
-- Add a usb_read_ii_timeout_cancellable wrapper
-- Add usb transfer cancellation on shutdown and documentation regarding where
-cancellable transfers are suitable.
-- Use cancellable transfers on bitfury device.
-- Cancel cancellable usb transfers on work restart messages.
-- Don't bother having a separate cancellable transfer struct for usb transfers,
-simply include the list in the usb_transfer struct.
-- Add wrappers for usb_read_cancellable and usb_read_timeout_cancellable
-- Specifically set the cancellable state for it to not be uninitialised in the
-usb transfer struct.
-- Alter the usb cancellable list only under cgusb_fd_lock write lock.
-- Pass the cancellable option to _usb_read options to decide on whether to add
-usb transfers to the list of cancellable transfers.
-- Create a linked list of potentially cancellable usb transfers.
-- Don't attempt to disable curses or print a summary during an app restart to
-prevent deadlocks.
-- Keep the libusb event handle polling thread active until there are no async
-usb transfers in progress.
-- Keep a global counter of how many async usb transfers are in place.
-- Perform libusb_submit_transfer under the write variant of cgusb_fd_lock
-- klondike - error condition handling
-- Avoid entering static libusb directory if --with-system-libusb is enabled.
-- Minor opencl build corrections.
-- Enable dynamic linking against system libusb --with-system-libusb
-- Modify Makefile to only include opencl related code when configured in.
-- Convert opencl to need to be explicitly enabled during build with
---enable-opencl
-- Implement a cglock_destroy function.
-- Implement a rwlock_destroy function.
-- Implement a mutex_destroy function.
-- Add usb command name to critical libusb error reporting.
-- Use windows' own higher resolution time and handlers allowing us to have
-higher precision absolute timeouts.
-- Fix lldiv error in windows cgminer_t calculation.
-- miner.php correct sort gen field names largest to smallest
-- api ... the code related to device elapsed
-- api add device elapsed since hotplug devices Elapsed is less than cgminer
-Elapsed
-- Drop usb buffering message to debug logging level.
-- Do the ntime binary modification to the work struct when submitting an ntime
-offset nonce within submit_noffset_nonce
-- Code cleanup and improved documentation
-- Improvements to support for BitBurner boards
-- Convert libusb transfer errors to regular libusb error messages to allow for
-accurate message reporting.
-
-
-Version 3.6.4 - 18th October 2013
-
-- Fixing the memory leak for remaining semaphores means we can go back to using
-async transfers on other OSes with our own timeout management again.
-- Use the forcelog function on shutdown to cope with indeterminate console lock
-states due to killing of threads.
-- Add a forcelog variant of applog which invalidates any console lock to force
-output.
-- Send pthread_cancel to failed completion_timeout that has timed out.
-- Simplify queued hashtable by storing unqueued work separately in a single
-pointer.
-- bflsc use getinfo chip parallelization if it is present
-- bflsc - fix brackets so [Chips] isn't always null
-- Remove unused variables.
-- Use cgcompletion timeouts for the unreliable shutdown functions on kill_work.
-- Fix cgcompletion return code and free on successful completion.
-- Provide a cg_completion_timeout helper function for unreliable functions that
-takes arbitrary functions and parameters and reliably returns.
-- Perform sync transfers on shutdown to allow final transfers to complete.
-- Destroy cgsems used after transfers to not leave open files on osx.
-- klondike rewrite work control
-- allow __work_complete() access
-- miner.h allow devices to tv_stamp work
-
-
-Version 3.6.3 - 17th October 2013
-
-- API add 'MHS %ds' to 'summary'
-- Optional lock tracking and stats via the API
-- Speed up polling repeat again in usb poll thread and handle async after the
-message to disable polling is complete.
-- Revert to using timeouts on !linux since libusb leaks memory without them.
-- Revert to libusb instead of libusbx
-
-
-Version 3.6.2 - 17th October 2013
-
-- Remove unused components of jansson
-- Remove unused parts of libusb
-- Work around older libtoolize that fails without top ltmain.sh not being
-present during autogen
-- Fix open coded use of autoreconf in autogen
-- Update jansson to only build parts we require and suited to our build
-environment.
-- Initial import of jansson-2.5
-- Prevent further USB transfers from occurring once the shutdown signal has been
-sent to prevent transfers getting stuck and libusb failing to shut down.
-- Make the USB polling thread poll every second to potentially aid longer
-timeout transfers.
-- Set device_diff on work in get_work to not be missed with drivers that use
-get_work directly.
-- Convert icarus driver to hash_driver_work model.
-- bflsc - also allow ' 0' in DEVICES IN CHAIN
-- bflsc - allow a 0 in DEVICES IN CHAIN
-- Add needed EXTRA_DIST for libusbx.
-- Update libusbx configure.ac changes.
-- Revert libusb Makefile changes from going to libusbx.
-- Fix trivial libusbx warnings.
-- Convert libusb-1.0.16-rc10 to libusbx-1.0.17
-
-
-Version 3.6.1 - 14th October 2013
-
-- Emulate the libusb_control_transfer sync setup in our async variant.
-- usbutils - make all libusb_error_name messages the same
-
-
-Version 3.6.0 - 14th October 2013
-
-- increasing max miners for avalon driver
-- using separate identifier for bitburner fury boards
-- changes to bitburner driver for bitburner fury boards
-- hexstr is too small in test_work_current
-- Windows uses errno for WSAETIMEDOUT
-- Convert the usb callback function to using cgsem_t timed waits to avoid race
-conditions with conditionals/mutexes.
-- Give correct return code in cgsem_mswait
-- Check for correct timeout error in cgsem_mswait
-- Fix util.h exports for cgsem_mswait
-- Implement a generic cgsem_mswait similar to sem_timedwait
-- Use the one LIBUSB_ERROR_TIMEOUT for cancelled transactions since this error
-is explicitly tested for in various drivers.
-- Do not use locking on usb callback function pthread signalling to prevent
-deadlock with libusb's own event lock.
-- Use a write lock when performing any USB control transfers to prevent
-concurrent transfers.
-- Free a libusb transfer after we have finished using it to avoid a dereference
-in usb_control_transfer
-- Do not perform bfi int patching for opencl1.2 or later.
-- Although async transfers are meant to use heap memory, we never return before
-the transfer function has completed so stack memory will suffice for control
-transfers, fixing a memory leak in the process.
-- klondike - correct/reverse min/max stats
-- api incorrect message name
-- klondike - use a link list queue rather than a circular buffer - and add
-timing stats
-- Use a timeout with usb handle events set to a nominal 200ms and wait for the
-polling thread to shut down before deinitialising libusb.
-- Use stack memory for hex used in stratum share submissions.
-- Use stack memory in test_work_current, avoiding a malloc/free cycle each time.
-- Provide a lower level __bin2hex function that does not allocate memory itself.
-- Convert the bitfury driver to use the hash_driver_work version of hash_work.
-- Add a hash_driver_work function to allow for drivers that wish to do their own
-work queueing and management.
-- Convert all usb control transfers to asynchronous communication with our own
-timeout management as well.
-- Klondike - increase circular read buffer size
-- Klondike - extra zero value and range checking in temp conversion
-- klondike - display MHz also
-- Make pthread conditional timeouts handle all bulk usb transfer timeouts
-performing libusb_cancel_transfer, disabling timeouts within libusb itself.
-- Avoid calling get_statline_before on exit to avoid trying to use it on drivers
-in an indeterminate state.
-- Avoid calling get_statline on exit.
-- Add a small amount to the usb timeout before cancelling to allow for a regular
-usb polling interval to pass.
-- Do not attempt to clear a usb halt before sending the cancel message since all
-transfers should normally be cancelled before attempting to clear a halt
-condition, and only change the return message to a timeout if it's consistent
-with a cancellation.
-- Retry up to USB_RETRY_MAX times to clear a halt condition before failing.
-- Show the error number as well as the description in erroring bulk transfers.
-- Drop logging level for failed to connect to stratum to verbose mode only since
-we hit it regularly.
-- We are always dependent on libusb handling events so use the blocking
-libusb_handle_events in the polling thread and use a bool to know if we should
-continue polling.
-- Use fractional hashrate return values in bitfury_scanhash to minimise the
-number of times we return 0 based on hashrate so far to further damp out
-displayed hashrate.
-- Check for presence of driver name in DRIVER_COUNT_FOUND to prevent strcmp on a
-null pointer when a driver is not built in.
-- CMR allow sending flash and clock commands
-- Kill off threads that have failed using hash_sole_work instead of just
-disabling them.
-- Make the bf1 getinfo size a macro
-- Failing to add_cgpu in bitfury should be a terminal failure.
-- Check return values when attempting to open a BF1 device and set the msg size
-as a macro.
-- Display errors on failed usb read and write and consider sequential IO errors
-a permanent failure.
-- Use libusb's own error name function instead of hand coding the error names.
-- Limit ms_tdiff to 1 hour as a sanity check.
-- Enable the usb buffer in avalon driver.
-- Check for async transfer variants of error messages.
-- Remove unused variables.
-- Try switching pools if for some reason we end up with only idle pools and have
-ended up current_pool set to an idle one.
-- Check a pool is stable for >5 mins before switching back to it.
-- Minimise the time between dropping the read devlock and grabbing the write
-devlock to avoid tons of logging spam in the interim.
-- Check for libusb transfer stall error to be consistent with async IO errors
-returned for a halt condition.
-- Check for continuous IO errors on USB and consider the device inactive if more
-than retry max.
-- Make the devlock a cglock in usbutils and only grab the write lock for
-fundamental changes allowing us to send and receive transfers concurrently
-without lock contention.
-- Prevent overflows in us_tdiff and ms_tdiff.
-- Change second initialise message on bitfury verbose mode.
-- Submitting an ntime offset nonce needs to be done on a copy of the work
-instead of the original so abstract out shared components as much as possible,
-minimising strdups in copy_work and make submit_work_async work take copied
-work, cleaning up code in the process.
-- Provide a way for drivers to submit work that it has internally rolled the
-ntime value by returning the amount it has ntime rolled to be added.
-- Typo in configure.ac
-- Remove unmaintained broken ztex driver.
-- Icarus - use a data structure for I/O rather than magic numbers
-- delete old tracked ccan/opt/*.o files
-- klondike correct cvtKlnToC() temperature calculation
-- klondike - correct 1st reply debug based on define
-- klondike - debug dump structured replies
-- klondike - avoid division by zero if maxcount is unexpectedly zero
-- klondike store and report errorcount and noise
-- klondike - fix chipstats api stats buffer overrun with 16 chips
-- klondike add new nonecount only once
-- klondike - report mh/s based on nonces found + put old estimate into API stats
-- klondike use a memcpy
-- klondike fix bracket tabs indenting
-- api.c missing Klondike from ASIC list
-- Klondike update code to current git
-- Add 2nd CMR to 01-cgminer.rules
-- Add Klondike to 01-cgminer.rules
-- Klondike to main directory
-- Klondike consistent code spacing
-- Klondike update driver code to current git
-- update firmware for 16 chips, add dist files
-- beta final 0.3.0 release
-- updated firmware, IOC method
-- prevent nonces when not state W
-- added driver config option support
-- fixes for 300 MHz, fix K1 parts list
-- update driver, docs
-- update firmware & utils
-- updated cgminer driver for 3.3.1
-- update firmware and driver, create new cgminer fork
-- update klondike driver
-- add cgminer driver file as-is
-- Add API output displaying USB cancellations.
-- Store statistics on how often we have to cancel async bulk transfers and add a
-debug message whenever we do.
-- Treat any unexpected timeouts waiting for async transfers as though there may
-be a usb halt condition and attempt to clear the halt before cancelling the
-tranfer.
-- Remove zero packet flag on usb as it's unsupported outside linux and
-unnecessary.
-- Fake the libusb transfer timed out message if we force cancel it with our own
-async functions.
-- Use asynchronous transfers for all bulk transfers, allowing us to use our own
-timers and cancelling transfers that take too long.
-- Add libusb error warning message when significant error occurs.
-- Icarus CMR2 detect FPGA setup
-- Disable bitfury device thread on it disappearing.
-
-
-Version 3.5.0 - 29th September 2013
-
-- Add magic init sequence required on BF1 devices to get them mining on windows.
-- usbinfo.devlock is only ever write locked so convert it to a mutex
-- Icarus remove unneeded opt_debug tests due to applog being a macro
-- Icarus - CMR shouldn't wait the full timeout due to handle sharing
-- We should only yield once in cg_wunlock
-- Provide a function to downgrade a cglock from a write lock to an intermediate
-variant.
-- Deuglify use of _PARSE_COMMANDS macro expansions.
-- Deuglify use of usb parse commands macro in usbutils.
-- Use the driver add commands macros in api.c to avoid individually listing
-them.
-- Separate out asic fpga and opencl drivers in the driver parse commands macro
-for use individually as needed.
-- Use macro expansion in usb_find_devices to avoid explicitly listing them all.
-- Use macro expansion to iterate over all the drivers without explicitly writing
-them out in usbutils.c
-- Iterate over the bitfury offsets in order of decreasing likelihood.
-- Reattach the kernel driver on linux on usb_uninit.
-- Attach the kernel driver on failure to usb init on linux.
-- libusb kernel driver operations are only available on linux.
-- There is no need to get the external prototypes for drivers in cgminer.c any
-more.
-- Remove unnecessary gpu_threads initialisation.
-- Put avalon last in the sequence of adding drivers to prevent it trying to
-claim similar chip devices on startup.
-- Use macro expansion to iterate over all device drivers without needing to
-explicitly code in support in all places. Pass a hotplug bool to the detect()
-function to prevent opencl trying to hogplug GPUs.
-- Forward declare all device drivers in miner.h avoiding the need to export them
-everywhere else.
-- Add a noop function for driver detect when it's missing.
-- Reuse the DRIVER_ macros to avoid having yet another definition for DRV_
-- Use macro expansion to generate extern device_drv prototypes.
-- Create a macro list of drivers to enable easier addition of further drivers.
-- There is no point setting the BF1 preferred packet size to the maximum since
-it will do so automatically.
-- icarus ensure all cmr interfaces are initialised properly
-- usbutils - fix USBDEBUG warnings
-- Remove unnecessary steps in communicating with BF1 and just use USB interface
-1.
-- usbutils - usb_bulk_transfer fix the buf/data fix
-- usb_bulk_transfer - use the allocated buffer
-- Set preferred packet sizes per interface on BF1.
-- usbutils allow PrefPacketSize per endpoint
-- Remove magic control sequences on open/close on BF1 and just flush the read
-buffers.
-- Check return codes in getinfo and reset and fail as needed in BF1.
-- Check return code for bitfury_open and release resources properly on failed
-initialisation.
-- Abstract out flushing of interrupt reads in BF1 devices.
-- Perform interrupt read after close message on BF1 as per serial close.
-- Perform interrupt read flush as per serial open on BF1 devices.
-- Add information for 2nd USB interface on BF1 devices and choose interface 1
-for bulk transfers.
-- usbutils - bulk transfer copy test fix
-- usbutils - add USBDEBUG for usb_bulk_transfer
-- Add more read_ii variants to usbutils.
-- Name remainder of BFU usb commands used.
-- Use submit_tested_work in bitfury driver to avoid unnecessarily re-testing the
-work for validity.
-- Abstract out work submission once it's been tested, to be used by drivers that
-do their own internal validity testing.
-- Store the hash2 array in struct work for further reuse.
-- usbutils - which_intinfo not requried
-- Use the test_nonce function within submit_nonce and store the uint32
-corresponding to hash2 37 for further use.
-- usbutils - interfaces must all be on one handle - ep implies the interface
-- avalon stats use exact type
-- Only set share diff if we've confirmed it's a share first.
-- Update ASIC-README for bitfury devices.
-- Use an array of offsets when checking nonces in bitfury_checkresults
-- Limit the duration we wait for reads in BF1 based on time already elapsed to
-account for other delays such as work restart messages or out of work.
-- Minimise size of serial string we copy in BF1 stats to avoid overflow.
-- Implement basic API stats for BF1 and increase array of results to check for
-the rare straggling result.
-- Space debug output for bf1 to separate from numerals.
-- Abstract out the bitfury open close and reset functions and use them on
-reinit.
-- Rename BF1 devices BF1
-- Check for work restart, breaking out early after usb reads in BF1.
-- Do not lose the first sets of results from BF1.
-- There is no point checking for results from the next round of work on BF1.
-- Last result returned by BF1 is an end of results marker so ignore it.
-- restart_wait should return 0 if thr_restart is true.
-- Remove unused code by bitfury driver since current driver uses serialised
-scanhash.
-- Meter out return of estimated hashes in BF1 to smooth out visible hashrate.
-- Optimise inner scanhash loop for bf1.
-- Add yet another backup work for triple buffering of work in bf1 to account for
-extra late results returned and don't check nonce offsets which appear to never
-return.
-- Name the work request and result usb commands for BF1
-- Define a mandatory upper limit to waiting for reset and data on BF1 based on
-full nonce duration.
-- Decrease usb buffering to verbose logging.
-- Add in first draft for a serialised work model sending/receiving data for BF1
-devices.
-- Add complete close sequence to bf1 as it happens on serial.
-- Provide a bitfury identify function for bf1.
-- Reliably extract BF1 information at startup and reset the device.
-- Add commands for getting BF1 bitfury info
-- Add magic BF1 bitfury open and close control sequences.
-- Add BF1 detection code to bitfury driver.
-- Create basic placeholders for bitfury driver code.
-- Add bf1 device information to usbutils to enable device detection.
-- Add basic defines for building for bitfury devices.
-- Add redfury device to udev rules.
-- avalon: display the FPGA controller version on API
-- pool_active uninitialised_var rolltime
-- Use macro expansion to only need to define usb enums and commands in one
-place.
-- usbutils saving incorrect overflow buffer
-- ignore libusb.la and *.lo on linux
-- icarus support CMR with no extensions
-- usbtils - interfaces dont work yet in libusb windows so disable for that only
-- Provide a --disable-libcurl config option to build support for stratum mining
-only.
-- Fix the api-example.c compile under Linux
-- usbutils - only release the device once - for the first intinfo
-- usbutils set_interface is no longer valid
-- ubsutils interfaces much each have their own handle
-- usbutils kernel_detach should use the interface number
-- usbutils - allow the driver to change which_intinfo
-- Reset quotas on load balance for all pools at the same time to avoid running
-out during selection and unintentionally dropping to fallback.
-- Break out of select pool from a common point for appropriate debug messages
-and to avoid further tests.
-- usbutils correct/reverse CMR product numbers
-- usbutils specifically track handles and interfaces
-- change drivers to use usb_interface() - required for multi interface change
-- usbutils - allow a device to use multiple interfaces (and better var names)
-- Cast -1 to (char) to cope with different default char types on ARM.
-
-
-Version 3.4.3 - 13th September 2013
-
-- Put corefoundation and iokit separate in ldflags for darwin.
-- Add rules for libusb Makefile.am building on osx
-- Add flags for building libusb statically on osx.
-- Find the greatest common denominator in quotas and use the smallest number of
-consecutive work items per pool in quota load balance mode to smooth hashrate
-across pools with large quotas. Give excess quota to priority pool 0 instead of
-pool 0.
-- Avoid dynamically adding stack memory for nonce2 in the stratum send thread
-and check the pool's nonce2_len will not cause an overflow.
-- Add subdir-objects to automake options.
-- Use inet_addr instead of inet_network to fix windows build.
-- Remove unused pbase variable.
-- Add support for socks4/4a proxies with stratum, and drop back to socks4
-support via the global --socks-proxy command to not break previous
-configurations.
-- Fix warning on mingw build.
-- Only show long-poll message in pool summary if it's not using stratum.
-- Increase the time for the waiting for work message to be given to be greater
-than that required for a pool swap in the scheduler which is set to 5s.
-- Change message in status when using a balanced pool strategy to notify if
-there's a stratum pool as well.
-- Use the --failover-only flag to have special meaning in combination with
-load-balance mode to distribute any unused quota back to pool 0 to maintain
-ratios amongst other pools.
-- Display quota and allow it to be modified via the pool menu.
-- Add API commands and modify output to support pool quota displaying and
-changing.
-- Change message in status when using a balanced pool strategy to notify if
-there's a stratum pool as well.
-- Add quota support to configuration files.
-- Rotate pools on all failures to set a pool in select_pool.
-- Use quotas for load-balance pool strategy.
-- Provide a mechanism for setting a pool quota to be used by load-balance.
-- Use the --socks-proxy option with stratum, changing it to defaulting to socks5
-and give appropriate message should it fail to connect.
-- Cope with trailing slashes in stratum urls.
-- Add more debugging messages when negotiating with proxies for stratum.
-- Test specifically for socks5h in socks support for stratum.
-- Add support for socks5 proxy with stratum
-- Provide support for negotiating a stratum connection via http proxies.
-- Connect to the proxy URL and port if specified for stratum sockets instead of
-the pool directly.
-- Extract any proxy url and port to be used by sockaddr if possible using
-extract_sockaddr.
-- Make extract_sockaddr set variables passed to it rather than pool struct
-members.
-- miner.php sort the mcast rigs so they are always in the same relative order
-- miner.php allow sending the muticast message multiple times
-- miner.php mcast ignore duplicate replies
-
-
-Version 3.4.2 - 3rd September 2013
-
-- take_queued_work_bymidstate should use a write lock.
-- miner.php coding warning
-- miner.php disable 'gen' by default
-- miner.php allow formula generation of new fields
-- miner.php add doctype
-- miner.php remove incorrect echo
-- miner.php optional error if not enough mcast rigs are found
-
-
-Version 3.4.1 - 31st August 2013
-
-- API mcast add a description option with miner.php
-- Always use a maxpacketsize buffer in usb_bulk_transfer
-- bflsc ensure getinfo cannot overflow it's storage buffer
-- Don't decref json values in stratum parsing due to memory corruption.
-- Use 64 bytes for all libusb control transfers.
-- Skip dissecting opt->names in parse_config if it doesn't exist.
-- Use an internal buffer in _usb_transfer_read in case the read is larger than
-the buffer passed to it.
-- ICA optional limit timing with short=N or long=N
-- Revert to old custom tolines function since strtok_r is not portable.
-- bflsc remove unused commented out code
-- logging - code mistake
-- logging - applogsiz() for large messages
-- Provide base structures for getaddrinfo.
-- Include string.h in bflsc driver.
-- Get rid of linear removal of spaces in bflsc text parsing and use strstr
-throughout instead.
-- Use reentrant strtok in tolines() function in bflsc to avoid racing on
-contextless calls.
-- Show how small a too small result in bflsc is.
-- Duplicate the buffer in process_results in bflsc since strtok modifies it
-making debugging output limited to one line.
-- Only process nonces in bflsc if the breakdown function succeeds.
-- Ignore zero count messages in bflsc instead of trying to parse them.
-- Return ok in tolines when it doesn't match inprocess message for bflsc.
-- Remove inprocess line instead of deleting all following responses in bflsc.
-- Change ok testing logic in breakdown() in bflsc and return if not ok at any
-stage.
-- Check the return value of tolines in bflsc driver.
-- Use strtok to parse lines in bflsc driver.
-- Add libusb-1.0 m4 directory and gitignore file.
-- Properly convert from ranlib to lt_init in configure.ac
-- Make autoconf always build for libusb.
-- More autoconf fixes.
-- Unconditionally build jansson statically from the cgminer source tree.
-- Only test for all usb devices once in configure.ac
-- Fix various libusb warnings and possible bugs on linux build.
-- Add make clean and maintainer-clean to autogen
-- Remove examples from libusb Makefile and generated autoconf files.
-- Fix libusb subdirectory builds.
-- Remove cached files from libusb autoconf on running autogen.sh
-- Remove unused HAVE_LISBUSB macro and use USE_USBUTILS everywhere.
-- Use direct auto* files to avoid failure of autoreconf
-- Remove unused and maintainer cleaned files
-- Show RT_LIBS in ./configure output.
-- First import of libusb-1.0
-- bflsc xlinkstr use snprintf
-- Fix win32 build.
-- Use take_queued_work_bymidstate in the bflsc driver to avoid the rare chance
-repeated results come back from the same work item.
-- Provide a funcion that looks up queued work by midstate and then removes it
-from the device hash database.
-- Fix no -rt library on darwin.
-- Update included jansson to v2.4
-- Fix OSX build.
-- Provide an osx fix for cgtimers and a fallback to timevals for all other
-platforms !linux !win32 !osx.
-- Move two more timer functions out of define macros to enable them to be used
-by future osx code.
-- cgtimer_sub is now the same since cgtimer_t should be the same on all
-platforms.
-- miner.php fix missing global
-- Only count submitted nonces as diff1shares if they're valid.
-- Substantially raise the maximum avalon frequency for water-cooled, over-volted
-designs.
-- Compile MCast.java with an old java
-- API Multicast sample MCast.java+MCast.class
-- BTB show C/MHz/mV for device
-- api.c remove unused reply string
-- api.c fix mcast debug message bug
-- miner.php implement API Multicast handling to automatically find your local
-net miners
-- API mcast only reply to remote IP's that are allowed access
-- Initial API Multicast response v0.1 to find cgminer APIs
-- Use timespecs on windows as cgtimer_t to capitalise on the higher resolution
-clock changes.
-- Abstract out the conversion of system time to an lldiv_t in decimicroseconds.
-- Use our own gettimeofday implementation on windows for it to be consistent
-across ming builds and higher resolution.
-
-
-Version 3.4.0 - 21st August 2013
-
-- Use stack data for HW error% in avalon stats.
-- Add avalon HW error% to stats and only show BTB variables if avalon is a BTB.
-- Check for cnx_needed on each loop through wait_lp_current.
-- Return positive for cnx_needed when no_work is true.
-- Stratum is used more often so test for it first.
-- Reorder support names alphabetically.
-- Only display the no pool work message once if there are multiple waiters in
-hash_pop
-- Provide a message and set a bool when no work is available from any pools and
-when it resumes again.
-- We don't want to continue into the hash_pop function if the getq is frozen.
-- Only report threads in and out in queued work devices across a get work since
-the rest happens asynchronously and the get work is what the device might be
-waiting on.
-- Thread reportin and out can be static non inline.
-- usbutils cps sleep_estimate is not an underestimate
-- usbutils add cps stats estimates
-- Provide cgtimer_sub helper functions.
-- Provide cgtimer_to_ms helper functions.
-- Rename cgsleep_prepare_r as cgtimer_time to get time in cgtimer_t format and
-call cgsleep_prepare_r as a macro for cgtimer_time
-- Use the reentrant cgsleep functions for usecps in usbutils.
-- TimeBeginPeriod and TimeEndPeriod do not add significant overhead when run the
-entire time for cgminer so avoid trying to maintain balanced numbers of them for
-specific time calls to simplify code.
-- Replace all references to the old n*sleep functions with the equivalent
-cgsleep_*s replacements.
-- timeGetTime uses huge resources on windows so revert to using timevals for its
-implementation of cgtimer_t
-- Quotient/remainder error in ms division.
-- Only grab a queued work item if we successfully grab the lock to submit work
-in bflsc_send_work
-- BTB get version from Firmware
-- Carve out the unused portions of sha2 implementation.
-- Import Aaron D. Gifford's fast sha256 implementation.
-- Increase the que_low watermarks on BFLSC for they are too low to keep the
-device busy on scanwork loops.
-- Provide cgtimer_to_timeval helper functions.
-- Provide a timeval_to_cgtime helper function to reuse values.
-- Check for thr->work_restart in restart_wait.
-- We should be using que_low to decrease scan sleep time in bflsc.
-- Prepare sleep time on bflsc if no dev needs work yet to avoid busy waiting.
-- Simplify cgsleep code for windows by using a typedef for cgtimer_t that
-resolves to clock resolution, using that internally.
-- On windows use the higher accuracy timegettime function to really get 1ms
-clock and timer accuracy.
-- Use the cgsleep reentrant function to sleep for bflsc between read results to
-account for time taken to perform reads.
-- Use 100ms delay between checking for results on all bflsc devices as the
-buffering of results mean checking more frequently just wastes CPU and causes
-more lock contention for only marginally better latencies.
-- Fix missed endtimeperiod in overrun timer on windows.
-- Make cgsleep_us_r take an int64_t for us.
-- Make the cgsleep functions build on windows.
-- Use the cgsleep reentrant function in avalon_send_task.
-- Use the reentrant cgsleep functions within the avalon_send_tasks function.
-- Set high resolution timing on windows within the cgsleep functions.
-- Use the reentrant cgsleep function to time sleeps on reading from avalon.
-- Provide reentrant versions of cgsleep functions to allow start time to be set
-separately from the beginning of the actual sleep, allowing scheduling delays to
-be counted in the sleep.
-- Make the nmsleep and nusleep functions use the new cgsleep functions
-internally till functions are migrated to the new cgsleep API.
-- Add a ms_to_timespec helper function, and create a cgsleep_ms function that
-uses absolute timers with clock_nanosleep to avoid overruns.
-- Add rt lib linkage to enable use of clock_nanosleep functions with older
-glibc.
-- Add necessary time header include to avalon driver.
-- Do a sleep of the full duration it would take to do all the work using
-clock_nanosleep in avalon_send_tasks to avoid sleep overruns before polling to
-see if it's ready.
-- Add a timeraddspec helper function.
-- Provide a us_to_timespec helper function.
-- Use the us_to_timeval helper function in the avalon driver.
-- Provide a us_to_timeval helper function.
-- Use timeval_to_spec helper in avalon driver.
-- Add helper functions to convert timespec to timeval and vice versa.
-- simplifying buffer full check
-- forking bitburner write thread function
-- making sure original Avalon is unaffected by BitBurner changes
-- changes to queueing strategy for BitBurner boards
-- Do not poll in avalon_get_results without sleeping if we have finished parsing
-a full result.
-- Add c to ambient temperature display for avalon driver.
-- BTB allow up to 1400mV as per firmware limits
-- avalon for timeout allow d='calculate it' and fix uninitialised
-- Use cloned work when finding avalon results since another thread can discard
-the work item while it's in use.
-- Provide a variant of find_work_bymidstate that returns a clone of the found
-work.
-
-
-Version 3.3.4 - 14th August 2013
-
-- API/miner.php add some % fields
-- Nonce2 stratum submission is not working with nonce2 lengths >4, revert the 
-buggy __bin2hex function and use bin2hex.
-- The write thread in avalon is only ever actually woken up by timeout so remove
-the write semaphore and use a simple sleep poll.
-- Fix warning.
-- Interrupting reads on the avalon to start writes loses data so remove the 
-cgsem_post in the read code.
-- Add room for the null byte at the end of the nonce2 string on stratum share 
-submission and zero the allocated ram.
-
-
-Version 3.3.3 - 13th August 2013
-
--  Only perform the bin2hex on nonce2 data if it's required for stratum 
-submission, thereby removing the last conversion of that type from stratum work 
-generation.
--  Create a work data template when receiving stratum notification, allowing a 
-simple memcpy of the merkle root avoiding more hex2bin conversions on each work 
-generation.
--  Export the workpadding char in miner.h
--  Avoid a potential overflow should a pool specify a large nonce2 length with 
-stratum.
--  Avoid one more hex2bin in gen stratum work.
--  Rename work gbt_coinbase to coinbase to be in line with pool variable name.
--  Perform merkle bin hex2bin on stratum notify to avoid doing it on each work 
-generation.
--  Reuse just the one pool coinbase variable in stratum, avoiding more string 
-functions and storage in gen_stratum_work on each work generation.
--  Rename pool gbt_coinbase variable to coinbase to combine it with the stratum 
-coinbase data.
--  Use a nonce2 offset variable for both gbt and stratum to consolidate 
-requirements on work generation.
--  Merge pull request #474 from kanoi/master
--  util.c update quit call for new functions
--  use correct define for OSX in util.c
--  miner.h inline semaphores increase information on failure
--  util.c expand quit to show file/func/line
--  Merge remote-tracking branch 'conman/master'
--  Cache as much of the gbt coinbase as possible to avoid doing unnecessary 
-hex2bin conversion on every work generation with gbt.
--  We should be using a cg_wlock initially in generating stratum and gbt work 
-before downgrading the lock.
--  Add the ability to downgrade a write variant of the cglocks.
--  Fix --scrypt being required before scrypt intensities on command line or not 
-working at all via config files.
--  Cache the hex2bin of pool nonce1 in stratum, avoiding hex2bin on each work 
-generation.
--  Cache the binary generation of coinbase1 and 2 on stratum, avoiding a hex2bin
-of coinbase1 and 2 on each work generation.
--  cgsem - increase information on failure
--  avalon init write_sem before use
-
-
--  3.3.2 - 9th August 2013
-
--  Fix uninit variable warnings.
--  usbutils - force check every combination
--  Fix warning.
-- Recreate curses windows on windows when a device is hotplugged to allow window
-resizing without crashing.
-- Update copyright notice.
-- Limit intensity range according to whether scrypt is in use or not.
-- Do not allow benchmark mode to be used with scrypt.
-- Add a --bflsc-overheat command which allows you to set the throttling 
-temperature for BFLSC devices or disable it.
-- Move bflsc defines to a header file.
-- avalon allow frequency to be set via the API
-- BTB voltage management via the API - and set default on startup
-- Avalon BTB allow partial work to be transferred
-- avalon_cts use correct buffer
-- miner.php format Best Share
-- remove unnecessary memcpy
-- using more concise description
-- using usb_ident
-- forgot a return
-- changes to Avalon driver for BitBurner boards
-- Revert "Sleep after sending icarus work to emulate working at 115200 baud."
-- api correct timeout stat display
-- usb timeouts - min/max also
-- log USB timeouts in API stats
-- usbutils report failed timeouts
-- usbutils ensure stats macros are using the macro arguments
-- Check for negative wait time in socket_full.
-- Fix extra argument passed to statline before.
-- Adjust socket wait timeout in recv_line according to how long we've already 
-waited to avoid a 60 second wait dropping to 1 second due to a blocked socket.
-- usbutils use a heap buffer for bulk read rather than stack
-- usbutils only one bulk transfer call per stat
-- set device_drv function noops when first add_cgpu
-- usbutils - in init only change the config if needed
-- bflsc nonce per work item stats
-- bflsc increase flush count to handle parallel work
-- force type checking on curses
-- logging - size check sprintf
-- usbutils - size check all sprintf
-- cgminer - size check all sprintf
-- size check get_datestamp/get_timestamp and remove unused cgpu->init
-- make all statline overflow safe
-- WU only needs +2 width
-- Check for a timeout in avalon_scanhash and post to the write sem if we receive
-one.
-- Decay result count in avalon more slowly to not falsely detect idle periods as
-low result return rates.
-- Count the number of miners idled in avalon to account more accurately for when
-its result return rate is too low.
-- Fix potential dereference when starting avalon with all new work.
-- Convert the decay_time function into one that truly creates an exponentially 
-decaying average over opt_log_interval.
-- Only throttle avalon clockspeed in avalon_auto in non optimal temperature 
-settings if the fanspeed has reached maximum.
-- Reinstate more aggressive <2% HW error target for avalon-auto
-- Set avalon fan min and fan max to PWM values instead of percentage.
-- Provide an --avalon-freq command line to give a valid range of frequencies for
-avalon in auto mode.
-- Set the avalon idle frequency to lowest if avalon auto is enabled and we have 
-an overheat condition.
-- Decrease avalon frequency in auto mode if we are unable to maintain the 
-temperature in the optimal range.
-- Don't count invalid nonces as hashrate for bflsc.
-- Use a more conservative upper limit of 1% for hardware errors with avalon auto
-frequency.
-- Allow the avalon fanspeed range to be passed as parameter on the command line,
-default to 20-100%
-- Just display A: and R: for difficulty accepted and rejected to preserve screen
-real estate and decrease decimal places for WU.
-- correct device DR: and remove global U:
-- Update all screen A/R to instead use DA/DR and device U to WU
-- miner.php add ASC fields
-- GPU fan rpm display 9999 when it overflows
-- bflsc get volts stats needs its own GETVOLTS
-- Support all avalon frequencies on the command line.
-- Move to slightly more relaxed timeouts for avalon.
-- MMQ turn on cps delays
-- bflsc x-link header different to documentation
-- Reset the other auto counters in avalon when idling a device.
-- usbutils/icarus include more locking to usbdev access
-- Icarus turn on cps delays by default
-- usbutils cps correct time measurement
-
-
-Version 3.3.1 - 25th June 2013
-
-- Add an avalon-auto option which enables dynamic overclocking based on hardware
-error rate for maximum effective hashrate.
-- Add an --avalon-cutoff feature which puts the avalon idle should it reach this
-temperature, defaulting to 60, re-enabling it when it gets to target
-temperature.
-- Change default avalon target temperature to 50 degrees.
-- usbutils - incorrect test for * in bus:dev
-- Redo +1 fix in bflsc.
-
-
-Version 3.3.0 - 24th June 2013
-
-- Add an --avalon-temp option to allow a user specified target temperature.
-- Demote no matching work message to verbose logging only on avalon.
-- Make the fan control on the avalon a simple PID controller with a target
-temperature of 45.
-- Demote bflsc hw error messages to verbose logging only.
-- bflsc - handle xlink timeouts by having generic IO functions
-- Demote the invalid nonce warning to log info.
-- Ignore iManufacturer for BFLSC devices since the device name will still match
-and some unbinned chips are missing it.
-- sc_count shouldn't be +1 in bflsc.
-- Use the info timeout for read_nl in getidentify bflsc.
-- Add a usb_read_nl_timeout macro.
-- bflsc try getinfo twice
-- set MSG_ASCUSBNODEV always defined
-- Hard code the preferred packet size for AMU, BLT and ICA.
-- API V1.26 update ASIC support
-- Icarus enable the read buffer for the detect nonce
-- Support new overclocking speeds for avalon: 325, 350 and 375
-- undo icarus show errno, put it as debug in ubsutils
-- icarus add errno to rerr and werr
-- Sleep after sending icarus work to emulate working at 115200 baud.
-- Use the nusleep function for sleeping after sending work in avalon.
-- Show an integer only for diff if it is one.
-- Set the avalon preferred packet size to 512.
-- Reinstate the maxPacketSize determined by the end descriptor but allow the
-driver to override it.
-- Only update hashmeter if we have done hashes or haven't updated longer than
-the log interval, fixing a us/ms error.
-- Use only one cgsem in avalon signalling when the write thread should commit
-work by reading the status bytes off during an avalon_read, minimising the
-number of usb calls and resetting from only one place.
-- Change avalon no valid work message to no matching work to match API
-terminology.
-- Use low latency usb transfers on the avalon, sleeping up to half a buffer's
-worth only if no data is returning to increase hashrate, abolish lost work and
-decrease CPU.
-- Minimise the sleep times in avalon read to avoid result loss.
-- Use a half nonce range before cycling through avalon's scanwork to ensure it
-gets a chance to fill work if time is tight for the write thread to signal a
-wakeup.
-- Temporarily limit usb transfer sizes to 512 till we provide a way for each
-driver to choose the upper limit.
-- Increase watchdog sick time to longer than it takes for a pool to be detected
-dead.
-- Limit USB transfers to the max size reported by the descriptors.
-- Increase the BFLSC timeout to allow the maximum number of results to be
-returned for BAS in time.
-- Decrease BAL and BAS latency to be just larger than one result read.
-- disable curses device resize that crashes on windows
-- BFLSC latest firmware has its own thermal cutoff set to 90, so use the same
-value in case we have an old firmware that isn't throttling by itself.
-- Drop watermark low limits for bflsc.
-- Set the fanspeed on bflsc to max if we don't know the temperature.
-- Use a low watermark for queueing mandatory work on bflsc instead of zero.
-- Only mandatorily grab the bflsc mutex on submitting work when the queue is
-empty.
-- Adjust bflsc v2 watermarks.
-- Only increase sleep time on bflsc if the queue isn't emptying at all over the
-sleep duration.
-- Fix warning.
-- bflsc yet more API stats
-- bflsc add some more API stats
-- bflsc correct firmware matching
-- bflsc correct comment
-- Fixed Commands with No params
-- bflsc driver support for v2 firmware
-- Odd Issues
-- Fixed Python Example
-- Added Python Api Example
-- Added Python Api Example
-- Multiplier fail for microseconds vs milliseconds when updating hashmeter in
-hash_queued_work.
-- Only make threads report in/out across the actual driver code and update their
-status on reporting out as well as in.
-- usbutils initialise close key/sem
-- usbutils cleanup linux semaphores on release
-- Difficulty should be unconditionally byteswapped, not swapped to big endian.
-- We should be setting cancelstate, not canceltype when disabling it for usb
-locking.
-- Pthread cancel state should be set to disable on usb DEVLOCK.
-- Fanauto on bflsc is Z9X according to the source code, not 5 as per the draft
-protocol document.
-
-
-Version 3.2.2 - 16th June 2013
-
-- Record and report USB pipe errors via API stats
-- Suspend stratum connections when we know they've failed and don't try to recv
-data from them once the socket no longer exists.
-- Pipe error is quite common on usb3 so drop logging to verbose level only.
-- ocl.c fix applog warnings on windows
-- applog/quit fix GPU errors created
-- usbutils - DEVLOCK other usbdev access
-- applog usb device list can be > LOGBUFSIZ
-- fix windows log warnings
-- logging remove extra added <LF>
-- remove varargs from logging/quit/in general as much as possible
-- Don't yield when downgrading a cg ilock.
-- Don't yield on grabbing the read lock variant of cglocks.
-- Off by one error in device count for display.
-- Don't display devices beyond the most_devices count in the curses status.
-- Only display as many device rows as the maximum live existed at any time.
-- usb lock out use cg locks
-- usb lock out transfers during open/close
-- Add error message to libusb pipe error
-- Differentiate libusb control transfer pipe errors from transfer errors since
-they're not fatal.
-- Create a usb_bulk_transfer wrapper for libusb_bulk_transfer to cope with pipe
-errors.
-- Only show efficiency in pool information for pools that don't support local
-work generation.
-- Create a pool_localgen bool function for testing when a pool can generate work
-locally.
-- ignore file that is generated on Macs
-- compile unix code on Mac OS X fixes not finding the config file in $HOME
-- Use mining start time for device MH/U calculations
-- Decrease the sleep duration before reading in avalon to not let the read
-buffer overflow.
-- Failure to read and write on pseudo semaphores on apple happens routinely on
-shut down so should not be a quit error, just a warning.
-- Unlock usb dev lock in the same place in usbutils.
-- Sleep if the avalon buffer is empty and we've requested a read to allow the
-write thread to take precedence.
-- Yield after releasing a lock in case we are on a device with limited CPU
-resources.
-- Add the cgpu_info structure before avalon reset.
-- Tidy up DEVLOCK/UNLOCK to have consistent use of the pstate variable without
-needing brace level match.
-- Icarus driver elaspsed timeout shouldn't be just USB I/O
-- usbutils avoid leaving devlock locked when thread cancelled
-- MMQ fix nodev failure caused by changes
-- ubsutils lock all access to nodev and cgusb
-- USB make device_path handled by usbutils
-- tidy up free in device detect functions
-- USB control creation and free of cgpu
-- Add FAQ regarding Work Utility.
-- Throttling the BFLSC at 80 seems to prevent generating garbled responses of
-higher temps.
-- Return after failed bin2hex conversion in bflsc.
-- Demote failed hex2bin result to LOG_INFO and check return result in
-driver-bflsc to avoid doing find_work_by_midstate.
-- Set BFLSC fan speed coarsely to keep it under 60 or auto as per specs saying
-it tries to stay below 60.
-- Limit usbutils LATENCY_STD to 32ms to keep transfers under 512 bytes.
-- Move macro definition to bflsc driver
-- Use a longer timeout for retrieving bflsc details.
-- Add a usb_read_ok_timeout wrapper to cope with slow init'ing devices.
-- cgsem_post after creating the thread info
-- Fix build.
-- Use cgsem structures instead of the flaky pings in the work queue to start
-mining threads and remove the unused thr_info_freeze function.
-
-
-Version 3.2.1 - 7th June 2013
-
-- Shorten the avalon statline to fit in the curses interface and show the lowest
-speed fan cooling the asic devices.
-- Set usbdev in usbutils after checking for nodev to avoid trying to access a
-dereferenced value.
-- AMU usbstatus correct name from enable UART
-- Icarus AMU enable the UART
-- Only libusb close if libusb release succeeds.
-- Failed reads and writes on cgsem_post and cgsem_wait should be extremely rare.
-- Implement cgminer specific cgsem semaphores to imitate unnamed semaphore
-behaviour on osx which does not support them.
-- Set cgusb->buffer to NULL when doing usb_buffer_disable.
-- Temporarily fix apple not having semtimedop by ignoring the timeout value.
-- BFLSC enable buffered USB reading
-- Icarus use buffered USB reading
-- bflsc & icarus use usb_ftdi_set_latency
-- usb_ftdi_set_latency LOG_ERRs if called incorrectly
-- add usb_ftdi_set_latency
-- usbutils optional read buffering
-- Set the avalon read transfer latency to avoid sleeping when no data is
-returned after very short latency settings.
-- correct bflsc BFLSC_BUFSIZ max calculation
-- Fix build for !curses
-- restore max code - since timeout is unsigned
-- compile warning - remove unused max
-- usb set FTDI latency higher to minimise status bytes
-- Check for zero timeout on _usb_write.
-- Check for zero timeout in usb read.
-- Define a minimum polling time based on frequency of mandatory updates of ftdi
-responses at 40ms.
-- Sleep right up to the timeout instead of the first half if we find ourselves
-polling in _usb_read
-- Enforce half timeout sized sleeps in usb_read if we find the device is not
-respecting libusb timeouts to avoid polling frequently.
-- Add more ASIC documentation.
-- Update README
-- Remove start device limitation on log window size to allow it to get larger
-with hotplugged devices.
-- Switch logsize after hotplugging a device.
-- Change switch_compact function name to switch_logsize to be used for other
-changes.
-- Only adjust cursor positions with curses locked.
-- devs display - fix GPU duplicate bug
-- Do not hotplug enable a device if devices have been specified and the hotplug
-device falls outside this range.
-- Change the --device parameter parsing and configuration to use ranges and
-comma separated values.
-- basic copyright statement in API.java
-- devs display - show ZOMBIEs after all others
-- Modify scrypt kernel message.
-- Check for pool_disabled in wait_lp_current
-- usbutils semun use proper def for linux which fixes OSX also
-- Check for pool enabled in cnx_needed.
-- Icarus add delays during intialisation
-- Update documentation.
-- Update copyrights of modified files.
-
-
-Version 3.2.0 - 31st May 2013
-
-- Add FAQ about windows USB keyboards and hotplug interactions.
-- Fix mingw build warnings in icarus driver.
-- Make usb_ftdi_cts use the _usb_transfer_read function.
-- Update ASIC-README with avalon info regarding default behaviour.
-- Break out of idling loop in avalon_idle if the buffer is full.
-- Provide some defaults for avalon if none are specified and do not try to claim
-the device if it fails to reset with them and no options are specified.
-- usbutils automatically track IO errors
-- usbutils allow a short wait for resources to be released
-- correct semaphore timeout comment
-- Set the fanspeed to the nominal chosen for GPUs.
-- Inverted sem_init logic.
-- Document avalon options in ASIC-README
-- Do avalon driver detection last as it will try to claim any similar device and
-they are not reliably detected.
-- Clamp initial GPU fanspeed to within user specified range.
-- Use a counting semaphore to signal the usb resource thread that it has work to
-do.
-- Avalon fan factor is already multiplied into the info values.
-- Get rid of zeros which corrupt display.
-- Logic fail on minimum fanspeed reporting.
-- Provide a workaround for fan0 sensor not being used on avalon and pad fan RPM
-with zeros.
-- Add ambient temp and lowest fan RPM information to avalon statline.
-- Display max temperature and fanspeed data for avalon.
-- Set devices to disabled after they exit the hashing loops to prevent the
-watchdog thread from trying to act on them.
-- Add avalon driver to hotplug.
-- Shut down the avalon mining thread if the device disappears.
-- Check for no usb device in usb_ftdi_cts
-- Check for valid usbdev in _usb_read in case the device has been unplugged.
-- Scanhash functions perform driver shutdown so don't repeat it.
-- Change the opencl shutdown sequence.
-- Send the shutdown message to threads and do the thread shutdown functions
-before more forcefully sending pthread_cancel to threads.
-- Use the cgpu_info shutdown to determine when to stop the avalon read and write
-threads.
-- Use semaphores to signal a reset to pause the read thread while the write
-thread does the actual reset, making all writes come from the same place.
-- Remove now unneeded fgpautils.h include from avalon.
-- usb_transfer_read should also not play with the endianness.
-- Use the USB wrappers for avalon, telling usbutils that we want the raw data.
-- Use separate ep for avalon tasks vs avalon reset and do not loop in write
-indefinitely.
-- Remove unneeded function and checks in avalon write code.
-- CMR handle baud options
-- work_restart is reset within the queued hash work loop.
-- Fix avalon shutdown sequence.
-- Execute driver shutdown sequence during kill_work.
-- Use nusleep in avalon_get_results in place of nmsleep.
-- Provide an nusleep equivalent function to nmsleep.
-- usb/ica add more (incomplete) CMR settings
-- Give a buffer of perceived results in avalon during idle periods to allow for
-results once it becomes active again.
-- libusb_control_transfer are meant to be endian specific, but host endianness
-so no conversion is needed.
-- Reuse old MTX Handle
-- usbutils check all memory allocation
-- usb separate thread for resource locking and modified windows locking code
-- Icarus report data direction with comms errors
-- Set the read and write threads for avalon to not cancel within libusb
-functions and wait for the threads to pthread_join on shutdown.
-- Offset needs to be incremented after avalon reads.
-- Make the avalon_read function parse the ftdi responses appopriately.
-- Use the avalon read timeout to completion if no data has been read.
-- wait_avalon_ready should only be used before writes.
-- Ask for the correct amount to read in avalon get results.
-- Spawn the avalon read thread first with info->reset set to discard any data
-till work is adequately queued.
-- Use direct usb read commands to avoid ftdi data being automatically cut off in
-avalon reads.
-- Do a simple usb_read_once for the avalon result from a reset command.
-- Make sure avalon is ready to receive more usb commands before sending them.
-- Implement avalon_ready and avalon_wait_ready functions for when usb is ready
-to receive commands.
-- avalon_read should not loop but just return whatever it has succeeded in
-reading.
-- Set avalon_info to device data void struct.
-- Specify avalon in avalon_reset.
-- First pass rewriting serialdev into direct usb dev for avalon driver.
-- Define a cts equivalent for direct usb and use it for avalon driver full.
-- Compile usbutils into avalon driver.
-- Check results come in at least at 2/3 the rate they should be on avalon and if
-not, reset it.
-- Give a warning but don't reset if the avalon buffer is full early.
-- Discard any reads obtained from the avalon get results thread during a reset.
-- Differentiate initial reset in avalon from subsequent ones.
-- Perform a mandatory reset if the avalon buffer signals it's full before it has
-queued its normal quota of work.
-- Wait till buffer is cleared after sending idle tasks to avalon before
-returning from avalon_idle.
-- Lock qlock mutex during reset from read thread in avalon to prevent more work
-being sent till the reset is over.
-- Reset avalon if we continue to be unable to send all the work items.
-- Add avalon reset response to debugging output.
-- Do a wait_avalon_ready before sending a reset code.
-- Iterate over spare bytes in the avalon result returned from a reset request
-trying to find the beginning of the reset.
-- Idle avalon after reset.
-- Check for nothing but consecutive bad results on avalon and reset the FPGA if
-it happens.
-- Make submit_nonce return a bool for whether it's a valid share or not.
-- Unset the work restart flag sooner in avalon_flush_work to avoid re-entering
-the flush work function and just reset the queued counter instead of rotating
-the array to avoid runs of no valid work.
-- Implement an avalon_flush_work function for work restarts.
-- Shut down avalon read and write threads and idle the miners on closing it.
-- Tighter control over work submissions in avalon allows us to use a smaller
-array.
-- Rotate avalon array to reset the queued count before releasing the lock so
-work will always be available on next pass.
-- Move avalon read thread start till after conditional wait, store idle status
-in avalon_info and use it to determine whether an error is appropriate or not.
-- Wait till the avalon_send_tasks thread has filled the avalon with idle work
-before starting the avalon_get_results thread.
-- Use AVA_GETS_OK macro in avalon_read.
-- Do all writes on avalon with a select() timeout to prevent indefinite blocking
-and loop if less than desired is written.
-- Check explicitly that ava_buffer_full equals the macro.
-- Send initial reset as an avalon task to remove avalon_write function.
-- avalon_clear_readbuf is no longer required.
-- Check for 2 stray bytes on avalon reset.
-- Create a separate thread for handling all work and idle submission to the
-avalon which messages the scanhash function it has completed to update
-statistics.
-- usbutils ensure it compiles without stats
-- usbutils include transfer mode in usbstats
-- Give the avalon get results thread name the device number as well.
-- Make sure we're not adjusting temps on every successful work retrieval on
-avalon.
-- Count missing work items from behind a successful work read in avalon as well.
-- Change message for work not found in avalon parser.
-- usbutils handle bulk_transfer partial writes
-- Simplify debugging and only discard from avalon read buffer if at least one
-full result has been discarded.
-- Only display discarded bytes in avalon if they're not used as nonces.
-- Only loop once through avalon_parse_results, but do so after timeouts as well.
-- Only debug and move ram if spare bytes exist in avalon buffer.
-- Remove off by one error.
-- Inverted logic.
-- Add more debugging to avalon reads.
-- Convert unsigned size_ts to ints for parsing avalon messages.
-- Cope with not finding nonces in avalon parsing gracefully by not overflowing
-buffers.
-- Adjust avalon temp values on one lot of valid nonces from the parser.
-- Created a threaded message parser for avalon reads.
-- Avalon_wait_write is not effective during resets so do it after going idle.
-- Send only a single byte reset.
-- Repeat going idle after avalon reset, and wait for write ready before sending
-each reset request instead of some arbitrary sleep time.
-- Timeouts on avalon_read and avalon_write should be 100ms.
-- Don't close avalon after detecting it until we're cleaning up, instead using
-reset for comms failures.
-- Check for avalon_wait_write before sending reset command.
-- Sleep in avalon_write_ready.
-- Make avalon_wait_write a bool function and check its return value.
-- Show how many idle tasks are sent to avalon if it aborts on buffer full.
-- Reset avalon->device_fd after it is closed.
-- Create an avalon_wait_write function that is used before sending avalon idle
-command.
-- Avoid repeating avalon_idle in do_avalon_close and extra sleep.
-- Pass fd to avalon_idle.
-- Do avalon_reset after info structure is set up.
-- Rework avalon reset sequence to include idling of chips and waiting for them
-to go idle followed by 2nd reset and then checking result.
-- Do a non-blocking read of anything in the avalon buffer after opening the
-device.
-- Assign the avalon info data to the device_data in cgpu_info.
-- thread shutdown is different on windows
-- usbutils make all windows timeouts 999ms
-- usb add another Cairnsmore1 USB chip
-- icarus do the full detect test twice if required
-- CMR usb config guess
-- usb add transfer_read and commented out in icarus
-- usbutils allow unrounded control transfers
-- icarus ICA initialisation
-- icarus report err on read failure
-- icarus correct device_id and use device_data for icarus_info
-- miner.h remove unused device_file and add device_data
-- miner.h icarus no long uses fd
-- icarus AMU config transfers
-- Create a logwin_update function which mandatorily updates the logwin and use
-it when input is expected to prevent display refresh delays.
-- usbutils force an unknown IDENT for zero
-- icarus set default options/timing based on device
-- Must unlock curses as well in logwin_update.
-- Create a logwin_update function which mandatorily updates the logwin and use
-it when input is expected to prevent display refresh delays.
-- icarus report usb write error information
-- Add name to icarus copyright notice.
-- Check for *pth dereference on pthread_join
-- usbutils name latency correctly
-- Check for restart before buffering more reads in Icarus.
-- Icarus should timeout if it's greater than the timeout duration even if it's
-receiving data.
-- We should check for amount buffered in icarus get_nonce against amount already
-received.
-- Make mining threads report out during work submission.
-- submit_work_async is no longer used directly by driver code.
-- Fix first read timeout on icarus get nonce.
-- Retry icarus_initialise if the first read attempt fails.
-- Properly pthread_join miner threads on shutdown.
-- Properly pthread_join miner threads on shutdown.
-- Use a persistent single separate thread for stratum share submission that uses
-workqueues since all stratum sends are serialised.
-- All stratum calls to recv_line are serialised from the one place so there is
-no need to use locking around recv().
-- Only allow the mining thread to be cancelled when it is not within driver
-code, making for cleaner shutdown and allowing us to pthread_join the miner
-threads on kill_work().
-- Only allow the mining thread to be cancelled when it is not within driver
-code, making for cleaner shutdown and allowing us to pthread_join the miner
-threads on kill_work().
-- Set pool->probed to true after an attempt to resolve the url via stratum code.
-- icarus test nodev everywhere
-- usbutils/icarus separate FTDI transfer values and more debug
-- add icarus to hotplug
-- usbutils add rest of icarus
-- simple serial-USB python test script
-- icarus->USB v0.1 incomplete - missing initialise()
-- README spelling
-- Update documentation for icarus switch to USB
-- Add USB rules for supported USB devices
-- switch icarus configuration to usb
-- usbutils new command for icarus
-- usb add a numeric sub-indentity for each name
-- usbutils - make FTDI handling automatic
-- fix duplicate name
-- usbutils set Black Arrow Lancelot's as BAL and match the lot->llt name
-- usbutils identify Icarus devices
-- libusb_control_transfer 16 bit words are endian specific.
-- usb_applog separate amt display
-- Show pool difficulty more verbosely if it changes via stratum.
-- Attribute whatever stats we can get on untracked stratum shares based on
-current pool diff.
-- Provide a --lowmem option which does not cache shares on failed submission to
-prevent low memory hardware (eg Avalon) from crashing.
-- Update util.c
-
-
-Version 3.1.1 - May 11th, 2013
-
-- Use a discrete device target for scrypt that dynamically changes to ensure we
-still report a work utility even if no shares are submitted such as in solo
-mining.
-- Make set_work_target a function to set a specified char as target for use
-elsewhere.
-- Further consolidate the hash regeneration between sha and scrypt doing it only
-once and always checking the share diff for both before submission.
-- Regenerate the hash before checking the share diff in hashtest().
-- Minor typo.
-- Use a scantime of 30 seconds for scrypt if none is specified.
-- Support more shares to be returned for scrypt mining.
-- Update the write config to properly record device entries and remove disabled
-option.
-- Show a different warning and loglevel for failure to resolve a URL on first or
-subsequent testing of stratum pool URLs.
-- Fix the problem of seting up termio of ttyUSB0 for icarus. the CSIZE  is the
-mask of CS2/4/8 From: navyxliu <navy.xliu@gmail.com>
-- Set all stratum sockets to nonblocking to avoid trying to use MSG_DONTWAIT on
-windows.
-- Fix warnings on win32 build.
-- Only use MSG_NOSIGNAL for !win32 since it doesn't exist on windows.
-- Use MSG_NOSIGNAL on stratum send()
-- Set TCP_NODELAY for !linux for raw sockets.
-- Use TCP_NODELAY with raw sockets if !opt_delaynet
-- Make raw sockets compile on windows
-- Recheck select succeeds on EWOULDBLOCK for stratum.
-- usbutils/mmq fixed size usb_read default to wait for all data
-- usbutils optional (disabled by default) dev debug
-- Add an ftdi usb read macro without newline
-- Avalon usb interface should be 0.
-- Add more debug for failure to USB init.
-- Recv() should all be non-blocking for raw sockets in stratum.
-- Change verbosity and error for getaddrinfo warnings in setup stratum socket.
-- Free servinfo after p is checked in setup stratum socket.
-- Use raw sockets without curl for stratum communications.
-- Sacrifice curl handle memory on stratum disconnects on all versions of libcurl
-to avoid curl corruption.
-- Don't use TCP_NODELAY if opt_delaynet is enabled with stratum.
-- Fix warnings in avalon driver.
-- Make FULLNONCE an ULL to fix a warning on 32 bit.
-- ztx correct applog typing
-- ocl correct applog typing
-- util correct applog typing
-- api correct applog typing
-- cgminer correct applog typing
-- scrypt correct applog typing
-- bfl correct applog typing
-- ica correct applog typing
-- mmq correct applog typing
-- adl fix trailing %
-- usbutils correct applog typing
-- applog - force type checking
-- Simplify the many lines passed as API data in the avalon driver now that the
-API does not need persistent storage for the name.
-- Duplicate the name string always in api_add_data_full to not need persistent
-storage for names passed to it.
-- Add extra matching work count data in API for Avalon with 4 modules.
-
-
-Version 3.1.0 - April 28th, 2013
-
-- va_copy is meant to be matched by a va_end in log_generic.
-- usbutils remove_in_use break
-- usbutils remove_in_use missing prev
-- usbutils missing add_in_use
-- Clean up summary slightly better on exit.
-- Make the scan sleep time after scanwork in bflsc dynamic to keep queues
-between watermark levels.
-- Remove unused temp counts in bflsc.
-- Calculate a rolling 5 min average set of temperatures for bflsc.
-- Damp the display of voltage for BFLSC devices.
-- Damp the temperature display measurement for bflsc since it fluctuates so
-wildly.
-- bflsc add volt stats
-- Handle failed tolines command in bflsc driver.
-- Can use a read lock instead of a write lock in bflsc scanwork.
-- Since we are filling a queue on the bflsc devices, there is no need to run
-through scanwork frequently provided we use the restart_wait function to abort
-early during a block change.
-- Remove flushed work in bfl scanwork from the hash table.
-- Set correct device in process_nonces in bflsc driver.
-- bflsc add work reply INPROCESS: missing from the spec
-- bflsc put in some error messages not yet written
-- bflsc get completed hashes as late as possible
-- Fix potential memory leak with unused work items in bflsc_queue_full
-- Reverse bools in bflsc_queue_full
-- Avoid recursive loop calling correct function instead.
-- bflsc fix details identification
-- Differentiate BFLSC device from regular bitforce and give warning if no
-support is compiled in.
-- util.c str_text make a fully text readable version of str
-- BFLSC fix FPGA identity overlap
-- Locking error in bflsc_send_work
-- Use htobe32 function for converting nonce in bflsc.
-- Replace deprecated bzero with memset in bflsc driver.
-- Fix compilation of bflsc driver without opencl.
-- Check for realloc failures in bflsc driver.
-- Check for failure to calloc in bflsc driver.
-- Trivial style change
-- Use copy_time function in bflsc driver.
-- Use cgtime in bflsc driver and update copyright notice.
-- Use a separate function for bfl initialise that doesn't require locking.
-- Fix BFLSC building.
-- bflsc v0.1
-
-
-Version 3.0.1 - April 25th, 2013
-
-- Bypass attempting to read and save binary files on OSX to avoid crashes on >1
-GPU.
-- Receive failures in recv_line should unconditionally fail.
-- Use sock_blocks in api.c
-- Use sock_blocks function for stratum send and receive.
-- Create an OS specific sock_blocks function.
-
-
-Version 3.0.0 - April 22nd, 2013
-
-- Further fix distdir for hexdump.c
-- Fix build and distdir.
-- Remove all CPU mining code.
-- compile on win32
-- Update SCRYPT README with improved hashrates for 7970.
-- Use copy_time helper throughout cgminer.c
-- Provide wrappers for commonly used timer routines with API stats.
-- Avoid one cgtime call in sole_hash_work.
-- Fulltest is true if value is <= target.
-- Use system host to endian functions for clarity in fulltest.
-- Provide endian_flipX functions to avoid special casing big endian in cgminer.c
-- Provide a flip128 helper to simplify big endian flipping.
-- Use flip helpers to simplify code for calculation of midstate.
-- Use flip32 function instead of open coding it in gen_stratum_work.
-- Move util.c exports to util.h
-- Fix warning on building avalon on win32
-- Use cgtime in driver-avalon.c
-- Use cgtime in driver-icarus.c
-- Use cgtime in driver-bitforce.c
-- Use cgtime in logging.c
-- Use cgtime in usbutils.c
-- Use cgtime in driver-opencl.c
-- Use cgtime wrapper in driver-modminer.c
-- Use cgtime in driver-ztex.c
-- Use cgtime in compat.h
-- Use cgtime instead of gettimeofday in fpgautils.c
-- Replace gettimeofday usage in cgminer.c with cgtime
-- Create a cgminer specific gettimeofday wrapper that is always called with tz
-set to NULL and increases the resolution on windows.
-- Add high resolution to nmsleep wrapper on windows.
-- Set default ocl work size for scrypt to 256.
-- define le32toh if needed
-- fliter out the wrong result from adjust fan code
-- compile avalon driver on win32 and win64
-- Restart threads on the rare chance we found the block ourselves.
-- Add more FAQs about crossfire.
-- Set last device valid work on adding device.
-- Increment last device valid work count in submit_nonce to cover scrypt.
-- Set opt_scrypt drv max diff for correctness.
-- Make scrypt submission use the submit_nonce code, with nonces matching
-endianness.
-- Do testing for HW errors on submit nonce for both scrypt and sha.
-- Increment hardware error count from the one site.
-- Rename scrypt regenhash function for consistency.
-- Add new best share info to verbose logging.
-- Add notice for when network diff is changed.
-- Convert error getting device IDs in ocl code to info log level only since
-multiple platforms may be installed and the error is harmless there.
-- Unnecessary extra array in ocl code.
-- Further driver FAQs.
-- Add MAC FAQ.
-- Add more FAQ details.
-- Check for work restart after disable in the hash queued work loop since it may
-be a long time before we re-enable a device.
-- Unconditionally test for many wrong results on avalon and reset to avoid
-passing a corrupt avalon result to temperature code.
-- build out of source dir
-- Set device_diff for queued work or there will be no diff1 share count.
-- Only reset an avalon device with no results when there are no results
-consecutively.
-- More FAQs.
-- More FAQs.
-- Cleanup when stratum curl fails to initialise.
-- Avoid applog in recalloc_sock.
-- Avoid applog under stratum_lock in recv_line.
-- Avoid applog under stratum_lock in __stratum_send.
-- Put spacing around locking in util.c for clarity.
-- Avoid applog under cg_wlock.
-- Put spacing around locking code for clarity.
-- Avoid applog under pool_lock.
-- Avoid more recursive locks.
-- Avoid applog while ch_lock is held.
-- Avoid recursive locks in fill_queue.
-- Variable is already initialised in global scope.
-- More GPU faqs.
-- More README faqs.
-- Yet more README faqs.
-- Add more faqs to README.
-- Wrap result wrong tests in avalon scanhash in unlikely() and only consider a
-hash count of zero wrong if a restart wasn't issued.
-- avalon: if result_wrong >= get_work_count jump out the read loop
-- Fix warning on 32bit.
-- Fix warning on 32bit.
-- Avoid curl_easy_cleanup on old curl versions in setup_stratum_curl as well.
-- fix the fan control on max temp2/3
-- for some reason network down. one simple cgminer command:   "cgminer -o
-127.0.0.1:8888 -O fa:ke --avalon-options 115200:32:10:50:256" can idle the
-avalon for safe power and protect chip
-- if hash_count == 0; reinit avalon, fix the 0MHS bug use the max value of temp1
-and temp2 for fan control
-- Reinstate the matching_work_count per subdevice on avalon based on the work
-subid.
-- Avalon driver is missing the drv_id.
-- Rationalise and simplify the share diff and block solve detection to a common
-site.
-- Rationalise and simplify the share diff and block solve detection to a common
-site.
-- Make the avalon array size a macro.
-- Use replacement of work items in the avalon buffer as needed instead of
-flushing them.
-- Reinstate wrong work count to reset avalon regardless and display number of
-wrong results.
-- Revert "The result_wrong measurement for avalon is continually leading to
-false positives so remove it."
-- select() on serial usb in avalon does not work properly with zero timeout.
-- The result_wrong measurement for avalon is continually leading to false
-positives so remove it.
-- Revert "Use only 2 queued work arrays in avalon."
-- Use no timeout on further reads in avalon_gets
-- Do sequential reads in avalon_get_reset to cope with partial reads.
-- Show read discrepancy in avalon_get_reset.
-- Reuse avalon_get_work_count variable.
-- Check for AVA_GETS_RESTART when deciding if avalon has messed up.
-- Make the detection of all wrong results on avalon much more conservative to
-avoid false positives on work restarts.
-- Show error codes on select and read fail in avalon.
-- If we get a restart message in avalon_gets still check if there's a receive
-message to parse first without a timeout before returning AVA_GETS_RESTART.
-- Use only 2 queued work arrays in avalon.
-- avalon_gets is always called from the one call site so inline it.
-- The read_count is unused by the avalon get result code and no longer required
-for avalon reset so simplify code removing it.
-- Use a separate avalon_get_reset function for resetting avalon instead of using
-avalon_get_result.
-- The current hash count returned by avalon scanhash is just an obfuscated
-utility counter so make it explicit.
-- Check for a restart before a timeout in message parsing code in avalon.
-- We should check for a restart message before checking for a timeout in avalon
-scanhash.
-- Store the subid for the work item in avalon.
-- usbutils more stats for bflsc
-- Fix record_temp_fan function in avalon driver. Patch by Xiangfu
-<xiangfu@openmobilefree.net>
-- Remove inappropriate memset of struct avalon result which was corrupting fan
-values.
-- Fix warning with no curses built in.
-- Bump version to 2.11.4
-- Add API support for Avalon.
-- Only do_avalon_close once on multiple errors.
-- Reset the result_wrong count on block change in avalon scanhash to prevent
-false positives for all nonces failed.
-- Small timeouts on select() instead of instant timeout increase reliability of
-socket reads and writes.
-- Only get extra work in fill_queue if we don't have any unqueued work in the
-list.
-- Small timeouts on select() instead of instant timeout increase reliability of
-socket reads and writes.
-- Rotate the avalon work array and free work on AVA_SEND_BUFFER_EMPTY as well.
-- Only get extra work in fill_queue if we don't have any unqueued work in the
-list.
-- Don't get any work if our queue is already full in avalon_fill.
-- Differentiate socket closed from socket error in recv_line.
-- Differentiate socket closed from socket error in recv_line.
-- Free avalon->works in the event we call avalon_prepare on failure to
-initialise.
-- Fix warnings.
-- Create an array of 4 lots of work for avalon and cycle through them.
-- Remove unused per unit matching work count for avalon.
-- Rename the confusing avalon_info pointer.
-- Simplify avalon scanhash code using the new find_queued_work_bymidstate
-function. Partially works only.
-- Members of cgpu_info for avalon are not meant to be in the union.
-- Use correct struct device_drv for avalon_drv.
-- cgminer.c -S help to only say Icarus
-- Check enough work is queued before queueing more in avalon_fill.
-- Actually put the work in the avalon queue.
-- Rneame avalon_api to avalon_drv.
-- First draft of port of avalon driver to new cgminer queued infrastructure.
-- Add Makefile entry for driver-avalon.
-- Add configure support for avalon.
-
-
-Version 2.11.4 - April 5th, 2013
-
-- Remove bfl-sc option  from configure for 2.11 branch.
-- Only update hashrate calculation with the log interval.
-- Update the total_tv_end only when we show the log to prevent failure to update
-logs.
-- Minor README updates.
-- Add example 7970 tuning for scrypt in readme.
-- Update driver recommendations.
-- Add extensive GPU FAQs for the flood of new Scrypt miners.
-- Remove help option for cpumining in build environment.
-- Remove scripts that make it too easy to compile CPU mining support.
-- Win32 and win64 build updates
-- Remove references to CPU mining from README.
-- Show share hash as little endian as needed.
-- usbutils extra message requirements
-- Make hashmeter frequency for hash_queued_work match sole_work.
-- Update links and recommended SDKs.
-- Update scrypt readme re drivers and sdk.
-- usbutils.c usb_cmdname() usb_cmds -> string name
-- BFL FPGA Windows timeout set to 999ms
-- AUTHORS - spam update time (one year since the last)
-- Update README for x970 memdiff values.
-- Update README to match changes to display.
-- Remove increasingly irrelevant discarded work from status lines.
-- Remove increasingly irrelevant queued and efficiency values from status and
-move WU to status line.
-- Allow cgminer to start if usb hotplug is enabled but no devices yet exist.
-- Do not scan other gpu platforms if one is specified.
-- Update README for sync objects on windows.
-- Update README about intensity.
-- Add information for setting gpu max alloc and sync parameters for windows with
-scrypt.
-- If the hashmeter is less than the log interval and being updated by the
-watchdog, don't update the hashrate.
-
-
-Version 2.11.3 - March 17, 2013
-
-- Update docs and reorder README to show executive summary near top.
-- Update the hashmeter at most 5 times per second.
-- Usbutils use its own internal read buffer
-- Calculate work utility for devices that support target diffs of greater than
-1, and update scrypt code to use it.
-- usbutils allow read termination match to be a string
-- Set default GPU threads to 1 for scrypt.
-- Connect backup stratum pools if the primary pool cannot deliver work.
-- Use a new algorithm for choosing a thread concurrency when none or no shader
-value is specified for scrypt.
-- Do not round up the bufsize to the maximum allocable with scrypt.
-- Remove the rounding-up of the scrypt padbuffer which was not effectual and
-counter-productive on devices with lots of ram, limiting thread concurrencies
-and intensities.
-- bufsize is an unsigned integer, make it so for debug.
-- Update the hashmeter once per second but only display the extra logs every
-opt_log_inteval.
-- add a dummy ztex to usbutils so cgminer -n lists ztex also
-- nDevs required for -n with usb
-- USB device list - convert some common error numbers to messages
-- USB -n 'known' text only without ---usb-list-all
-- USB modify -n and --usb-dump to only show known devices or use new
---usb-list-all option to see all
-- Make pool adding while running asynchronous, using the pool test thread
-functionality.
-- Only curl easy cleanup a stratum curl if it exists.
-- Sacrifice the ram of curl handles in stratum disconnects when we have built
-with old libcurl to avoid crashes.
-- cgminer -n to include a USB device list
-- usbutils allow call of usb_all() from other code
-- Convert gbt_lock to a cg_lock.
-- Add intermediate variants of cglocks that can be up or downgraded to read or
-write locks and use them for stratum work generation.
-- Move the stratum and GBT data to be protected under a new cg_lock data_lock.
-- Convert the ch_lock to cg_lock.
-- Convert the control_lock to a cg_lock.
-- Remove unused qd_lock.
-- Implement cg_lock write biased rwlocks.
-- do usb_initialise() after the started message so we see it
-- --usb-dump display brief dump if value = 0
-- USB add --usb options to limit USB device selection v0.1
-
-
-Version 2.11.2 - March 9, 2013
-
-- Whitelist AMD APP SDK 2.8 for diablo kernel.
-- Cope with the highest opencl platform not having usable devices.
-- Fix memory leak with share submission on GPU work structures as discovered by
-twobitcoins.
-- usb_cleanup() without locking.
-- Use curl_easy_cleanup to close any open stratum sockets.
-- Show pool number in switch message
-- Don't start testing any pools with the watchpool thread if any of the test
-threads are still active.
-- Set sockd to false should curl setup fail on stratum.
-- Close any open sockets when reusing a curl handle and reopen the socket
-whenever we're retrying stratum.
-- Set pool died on failed testing to allow idle flag and time to be set.
-- Remove unused pthread_t typedefs from struct pool.
-- Perform pool_resus on all pools that are found alive with the test pool
-threads.
-- Use pool_unworkable in select_balanced as well.
-- Differentiate pool_unusable from pool_unworkable.
-- Keep a connection open on higher priority stratum pools to fail back to them.
-- Rename threads according to what pool they're associated with as well.
-- Set the wrong bool in pool_active
-- Start the stratum thread only if we successfully init and authorise it,
-otherwise unset the init flag.
-- Make the initialisation of the stratum thread more robust allowing the
-watchpool thread safe access to it after the stratum thread is started.
-- API no longer ignore send() status
-- API make the main socket non-static
-
-
-Version 2.11.1 - March 7, 2013
-
-- Shorten the time before keepalive probes are sent out and how frequently
-they're sent with stratum curls.
-- Only set stratum auth once to prevent multiple threads being started.
-- Display select return value on select fail in stratum thread.
-- Clear the socket of anything in the receive buffer if we're going to retry
-connecting.
-- Allow pools to be resuscitated on first startup by the watchpool thread.
-- Check all pools simultaneously at startup switching to the first alive one to
-speed up startup.
-- Clear just the socket buffer when we don't care what is left in a stratum
-socket.
-- Clear the stratum socket whenever we are closing it since the buffer is going
-to be reused.
-- Do not continue work from a stratum pool where the connection has been
-interrupted.
-- Reset stratum_notify flag on suspend_stratum as well.
-- Close any sockets opened if we fail to initiate stratum but have opened the
-socket.
-- Close any existing stratum socket if we are attempting to restart stratum so
-the pool knows the connection has gone.
-- Show mechanism of stratum interruption if select times out.
-- Make stratum connection interrupted message higher priority to be visible at
-normal logging levels.
-- Implement client.show_message support for stratum.
-- API add 'Network Difficulty' to 'coin'
-- Setup BFLSC support
-- API use control_lock when switching pools
-- Make sure to retry only once with noresume support for stratum.
-- Instead of keeping track of when the last work item was generated to keep
-stratum connections open, keep them open if any shares have been submitted
-awaiting a response.
-- usbutils.c copy full size to 'Last Command'
-- configure - set USE_USBUTILS when usbutils is required and use it in the code
-- Clear last pool work on switching pools if the current pool supports local
-work generation or we are in failover only mode.
-- make rw locks: mining_thr_lock and devices_lock
-- Release MMQ device only once (not 4 times)
-- api.c fix MSG overlap
-- Hotplug - allow setting interval via --hotplug or API
-- curses - fix - put a dev_width inside #ifdef
-- usb_cleanup() use correct locking mechanism
-- Implement and use usb_cleanup() on shutdown or restart
-- miner.php report 'Last Valid Work' as time before request
-- API - return Last Valid Work
-- api -> drv
-- ZTX bug set missing drv_id
-
-
-Version 2.11.0 - March 2, 2013
-
-- Update kernel file names signifying changes.
-- Update a pool's last work time when the work is popped as well as staged.
-- API always report failed send() replies
-- Update diff stale: total and pools when stratum throws away shares
-- Keep stratum connections open for 2 minutes after the last work item was
-staged to allow stray shares to be submitted on pool switching.
-- Try to extract the sessionid associated with mining.notify on 3rd level array
-and submit it along with the userid to support mining resume, failing gracefully
-and restarting if the pool rejects it.
-- Speed up watchdog interval and therefore display updates to 2 seconds.
-- Update copyright dates.
-- Cope with misread sessionid on stratum for now.
-- Use constants from the array of __constants throughout the diablo kernel.
-- Create a __constant array for use within diablo kernel.
-- Fix --benchmark generating valid work for cgminer.
-- Use the sessionid as passed on stratum connect to attempt to resume a
-connection once and then clear it if it fails, to use a new connection.
-- Move to storing the nonce1 in the work struct instead of the sessionid for the
-now defunct first draft mining.resume protocol.
-- Use global constant arrays for all other constants used in scrypt kernel.
-- Use global __constants for sha functions in scrypt kernel.
-- Use constants for endian swap macros.
-- Revise scrypt kernel copyright notice.
-- Separate out additions in scrypt kernel.
-- Reuse some Vals[] variables that can be assigned to constants earlier in the
-poclbm kernel, making for fewer ops.
-- Put all constants used in poclbm kernel into __const memory array to speed up
-concurrent reads on the wavefront.
-- BFL stop 1st init command if no device
-- Add a get_queued function for devices to use to retrieve work items from the
-queued hashtable.
-- Bugfix: Duplicate stratum sessionid when copying work, to avoid double-free
-- Bugfix: Missing pool_no parameter to applog for no-stratum-sessionid debug
-message
-- Add the choice of hash loop to the device driver, defaulting to hash_sole_work
-if none is specified.
-- Add comments.
-- Add a driver specific flush_work for queued devices that may have work items
-already queued to abort working on them on the device and discard them.
-- Flush queued work on a restart from the hash database and discard the work
-structs.
-- Create a central point for removal of work items completed by queued device
-drivers.
-- Create a fill_queue function that creates hashtables of as many work items as
-is required by the device driver till it flags the queue full.
-- Create the hash queued work variant for use with devices that are fast enough
-to require a queue.
-- Update copyright year.
-- Fix tv_lastupdate being made into tv_end and update the hashmeter on cycle,
-not opt_log_interval.
-- Fix tv_lastupdate being made into tv_end and update the hashmeter on cycle,
-not opt_log_interval.
-- Only continue submitting shares with mining.resume support on stratum when the
-session id matches.
-- Provide support for mining.resume with stratum, currently re-authorising after
-successful resumption pending finalising of the protocol process.
-- Provide basic framework for restarting stratum depending on whether resume
-support exists or not.
-- Abstract out the setting up of the stratum curl socket.
-- Free sessionid in clean_work and remove redundant setting of strings to NULL
-since the whole work struct is zeroed.
-- Only clear stratum shares mandatorily on stratum dropouts when the pool does
-not support resume.
-- Try resubmitting stratum shares every 5 seconds for up to 2 minutes if the
-pool session id exists and matches on failure to submit.
-- Do as much outside of mutex locking of sshare_lock as possible.
-- Remove last reference to struct work used outside the sshare_lock in
-submit_work_thread
-- Unlock the sshare_lock in submit_work_thread when all references to work and
-sshare are complete.
-- Add timestamps to stratum_share structs as they're generated and copy the
-stratum sessionid if it exists to stratum work generated.
-- Store session id for stratum if the pool supports it for future mining.resume
-support.
-- API.java allow partial reads
-- debug_cb buffer type warning
-- MMQ rewrite the last of the old scanhash loop and drastically reduce CPU
-- hash_sole_work can be static
-- Make the numbuf larger to accept larger scrypt parameters.
-- Keep the unique id of each work item across copy_work to prevent multiple work
-items having the same id.
-- Abstract out the main hashing loop to allow us to use a separate loop for
-devices that are fast enough to require queued work.
-- Provide a noop thread_enable function for drivers that don't support it.
-- Provide a noop thread_shutdown function for drivers that don't support it.
-- Provide a noop hw_error function for drivers that don't support it.
-- Provide a noop prepare_work for drivers that don't support it.
-- Provide a noop thread_init for drivers that don't support it.
-- Provide a noop can_limit_work for devices that don't support it.
-- Provide a noop thread_prepare function for drivers that don't use
-thread_prepare.
-- Use blank_get_statline_before for GPU devices that don't support adl
-monitoring.
-- Provide a noop get_stats function for drivers that don't support it.
-- Provide a blank get_statline for drivers that don't support it.
-- Provide a blank get_statline_before function for drivers that don't have one.
-- Fill drivers missing reinit_device with a noop version.
-- add 'count' to cumstomsummarypage 'calc'
-- hotplug use get_thread() where appropriate
-- convert sleep(const) to nmsleep()
-- remove empty #ifdef
-- call a separate get_devices() with locking, as required
-- usbutils - avoid free cgusb twice
-- usbutils hotplug v0.1
-- Report USB nodev as ZOMBIE on the screen
-- Change file modes.
-
-
-Version 2.10.5 - February 7, 2013
-
-- Fix logic fail on partial writes with stratum send that was leading to corrupt
-message submissions.
-- Do not consider every call to stratum_resumed a pool recovery unless it was
-actually idle.
-- Do not enable the pool disable on reject feature unless explicitly enabled
-with --disable-rejecting.
-- Stratum disconnect shares - count total against stale
-- Use sanity checking to prevent a possible overflow with invalid data being
-given by the pool for difficulty as reported by luke-Jr.
-- Check for calloc failure for completeness in gen_stratum_work.
-- Cache the coinbase length to speed up stratum work generation.
-- Cache the header length when generating stratum work to avoid calculating it
-on every work generation, and to only need one alloc+sprintf, speeding up work
-generation.
-- Use heap ram for coinbase in gen_stratum_work, zeroing it before use.
-- Provide a wrapper for aligning lengths of size_t to 4 byte boundaries.
-- Fix memory leak on stratum share submission.
-- Zero the best share string memory when zeroing stats.
-
-
-Version 2.10.4 - December 29, 2012
-
-- Change the pool stratum socket buffer to be dynamically allocated to
-accomodate any size coinbase and keep receiving data in recv line for up to 60s
-if no end of line has been received.
-- Differentiate socket full from sock full.
-- Allow stratum to startup without notify but check it is valid before creating
-stratum work.
-- Do not try to generate stratum work unless the notify command has succeeded.
-- Reset total diff1 shares when zeroing stats as well to show correct work
-utility.
-
-
-Version 2.10.3 - December 26, 2012
-
-- Do not give the share submission failure message on planned stratum
-disconnects.
-- Parse anything in the stratum socket if it's full without waiting. Empty the
-socket even if a connection is not needed in case there are share returns.
-- Provide a mechanism to zero all the statistics from the menu.
-- Display the current pool diff in the status line.
-- Display block diff in status line.
-- Generalise the code for solving a block to enable block solve detection with
-scrypt mining.
-- Generate the output hash for scrypt as well and use the one function to set
-share_diff.
-- Use the flip80 function in regeneratehash and the correct sized hash array.
-- Use one size for scratchbuf as a macro in scrypt.c
-- Stage work outside of the stgd lock to prevent attempted recursive locking in
-clone_available.
-- share_diff needs to be performed on a BE version of the output hash to work,
-leading to false best_share values as spotted by luke-Jr.
-- Remove the unused sha224 functions.
-- Use the flip functions in hashtest.
-- Simplify the setting of the nonce data field in work on submitting nonces.
-- Scrypt code does not enter the hashtest function.
-- Go back to cloning available work under staged lock.
-- Updated links to AMD APP SDK
-- Updated link to ADL SDK
-- scrypt_diff uses a uint64_t as well.
-- Correct target for stratum support with scrypt mining.
-- libztex: fixed a typo
-- libztex: check returnvalue of libusb_claim_interface() and release the
-interface in case of early exit
-
-
-Version 2.10.2 - December 19, 2012
-
-- Stop all work from the current pool if it's a stratum pool once it is
-disconnected since it will be invalid upon reconnecting.
-- Discard all staged work from stratum pools as well as the shares upon
-disconnection since all the work becomes invalid.
-- Use correct cbreak after 15 second delay when no pool is found alive.
-- MMQ missing firmware -> ERR not DEBUG
-- Allow stratum to work with scrypt.
-- MMQ ensure delta clock can never exceed limits
-- MMQ lowercase new string constants
-- MMQ add api pgaset for clock
-- API V1.23 - new pgaset command, to be used soon
-- Protect the best_share/best_diff values under control lock.
-- MMQ style police
-- MMQ count work check timeout failures
-- MMQ allow partial work replies and count them
-- Check a stratum pool hasn't gone dead while being a backup pool and missed
-having its idle flag cleared.
-- MMQ overheat: remove clockdown (doesn't help) + ensure no lost shares
-- API-README grammar
-- API-README explain custom page extensions in miner.php
-- miner.php add a sample group pool report
-- miner.php allow where,group,having on cumstom pages
-
-
-Version 2.10.1 - December 14, 2012
-
-- Check for EWOULDBLOCK when supported in send and recv as well.
-- Use the raw send() command instead of curl_easy_send since curl raw socket
-usage introduces random bugs on windows.
-- Use raw recv() command in place of curl_easy_recv since the curl
-implementation introduces random bugs on windows builds when the recv fails.
-- miner.php when displaying a single rig, add prev/next rig buttons if they
-exist, next to refresh
-- miner.php allow custom page joins for STATS
-- API show if pool has GBT (so people know not to use that pool)
-- miner.php - include windows easyphp link
-- driver-ztex: use the correct size for the swap array
-- API stats - display pool byte transfer stats
-- Pool store data transfer stats
-- README ModMiner dependency
-- Benchmark incorrect work size
-- ChangeLog refer to NEWS
-- MMQ handle over temp differently and hash longer
-- driver-ztex: search the complete noncerange based on the actual speed
-- README - update ModMiner details
-- API-README update
-- api use a dynamic io buffer, truncated before it reaches the current ~64k
-limit
-
-
-Version 2.10.0 - December 10, 2012
-
-- Include prctl header for thread renaming to work.
-- Set tv_idle time if a pool is not active when input from the menu.
-- usb display message when device is in use/another cgminer
-- libztex: avoid the use of libusb_error_name()
-- minor unlikely zero pointer test
-- BeaverCreek doesn't like BFI INT patching.
-- Only stratum pools that are idle need to be kicked via cnx_needed.
-- mmq - abbreviate the temperature numbers
-- Do not do any setup if opt_api_listen is disabled in api.c.
-- usbutils.c uninitialised usbstat for non-primary mmqs
-- Only set the lagging flag for select_pool() on failed getwork if we're not in
-opt_fail_only mode.
-- libztex: in case the selectFpga() failed set the selected fpga to unknown
-- Modified windows-build.txt to update git instructions.
-- libztex: use a function for the twice called firmware reset code
-- libztex: removed an unused struct member (ztex->valid)
-- driver-ztex: support for broken fpga on a multifpga board
-- Set the pool lagging flag on startup to avoid it being shown initially, and
-only unset it once the maximum number of staged work items has been reached.
-- Avoid recursive locking of the stgd lock.
-- Return value of keep_sockalive is no longer used.
-- Remove dependency on mstcpip.h for windows build by making curl version >=
-7.25.0 mandatory on windows builds, and use curl functions for keepalive
-whenever possible instead.
-- Make main() the getwork scheduler once everything is set up, so that all app
-exits use the kill_work and quit paths.
-- ztex: more style and whitespace fixes
-- libztex: silenced another warning
-- Set successful connect to true on auth stratum to allow summary on exit from
-single stratum pool.
-- Only consider work stale for stratum of different job_id if it's not a share.
-- Increment version preempting changed version signifying different codebase to
-2.9
-- Hash_pop should signal further waiters on its own pthread conditional in case
-there are multiple waiters.
-- Check the job_id has not changed on stratum work when deciding if the work is
-stale as might occur across disconnections.
-- Perform pool_resus on getwork pool that generates work in getwork_thread.
-- Set pool lagging message for getwork pool that falls to zero staged in getwork
-thread.
-- Stage extra work when the primary pool is a getwork pool without rolltime.
-- Do not try to clean up twice if kill message is given.
-- Only recalculate total_staged in getwork thread if required.
-- Include the correct config header in libztex and include it before other
-includes.
-- Implement a completely new getwork scheduler. Stage all work from the one
-thread, making it possible to serialise all requests minimising the number of
-getworks requested or local work generated. Use a pthread conditional to wake up
-the thread whenever work is removed to generate enough work to stay above the
-watermark set by opt_queue. Remove all remnants of the old queueing mechanism,
-deleting the now defunct queued count.
-- libztex: fixed some warnings and removed some whitespaces
-- libztex: silenced some warnings
-- Remove all references to the now unused workio_cmd structure.
-- Remove the old workio command queue thread, replacing it with a kill
-conditional to exit the program.
-- Remove getwork command from workio_cmd queues and do them directly from
-queue_request.
-- Begin tearing down the old workio command queues by removing submit commands
-from there and submit them asynchronously via their own threads.
-- Update windows build instructions.
-- Set pool probed to true on successful authorisation with stratum to avoid it
-being pinged later with pool_getswork.
-- driver-ztex: libztex_setFreq() must be called before ztex_releaseFpga()
-- driver-ztex: changed two pairs of malloc()/memset() to calloc()
-- libztex: Read bitstream file in 2kb blocks with simpler and faster code
-- Added the binary versions of ztex_ufm1_15d4.ihx and ztex_ufm1_15y1.ihx
-- Trivial space removal.
-- libztex: Add firmware download support for ZTEX 1.15d and 1.15x
-- libztex: Factor out local version of libusb_get_string_descriptor_ascii()
-- Shut up some boring old cpu warnings.
-- Style changes.
-- Allow pool active to be called on stratum or disabled pools in the watchpool
-thread if the pool has not been probed.
-- libztex: Make log messages say bitstream when refering to bitstreams
-- libztex: Don't return error when a bitstream was already configured
-- libztex: Read bitstream file in 64kb blocks with simpler and faster code
-- libztex: Verify that the mining firmware is not a dummy firmware
-- libztex: Match mining firmware ZTEX descriptor against the dummy firmware
-- Combine shared padding into one char.
-- libztex: Start download sequence only after reading in the new firmware
-- libztex: Download mining firmware to all devices with dummy firmware
-- lock (most of) the threaded statistics updates
-- README stats don't add up
-- usbutils.c remove compiler warning
-- Make need connection return true if a pool is idle.
-- API add Best Share to summary
-- Check on creating new GBT work if the structures are up to date and update
-them as required rather than regularly.
-- Update windows build instructions.
-- Enable backup stratum connections for getwork when the primary pool doesn't
-have longpoll aka solo mining.
-- Check for correct absence of opt_fail_only in cnx_needed.
-- Remove unused variable.
-- The specification for stratum has been elaborated to say that a changed diff
-applies only to new work so do not retarget when submitting shares.
-- Use a variable length string array in submit_upstream_work to cope with
-massive GBT submissions.
-- API lock access to some summary statistics (and copy them)
-- Suspend stratum connections to backup pools when there is no requirement to
-potentially grab work from them.
-- Fix missing export for RenameThread.
-- enumerate the mining threadnames
-- MMQ avoid possible number overrun crashes
-- mmq usb v0.4 + api usb stats
-- setting the name of the threads for linux,freebsd,openbsd and osx code is
-borrowed from bitcoins util.c, so it is already tested
-- Don't show broken WU value with scrypt mining.
-- Style police.
-- Remove unused getwork times in getswork.
-- Fix readme wordwrap.
-
-
-Version 2.9.6 - December 2, 2012
-
-- Make gen_stratum_work more robust by using a dynamically allocated array for
-the header in case bogus data is sent by the pool to avoid overflowing a static
-array.
-- scrypt_diff now returns a uint64_t
-- Support monitoring and reporting much higher diffs for scrypt mining,
-truncating irrelevant zeroes from displayed hash.
-- Pass ostate values around in scrypt to be able to extract full hashes if
-needed later on.
-- Since we will be using calloc_str to put a string into it, convert the
-function to calloc_strcat which does it automatically.
-- Revert "Handle crash exceptions by trying to restart cgminer unless the
---no-restart option is used."
-- Count longpoll and GBT decodes as queued work since the count otherwise
-remains static.
-- Use the string helper functions to create gbt blocks of any length.
-- Provide helper functions calloc_str and realloc_strcat to create and extend
-arbitrary length arrays based on string length.
-
-
-Version 2.9.5 - November 25, 2012
-
-- fixes target calc for mips openwrt
-- openwrt needs roundl
-- Get rid of unused last_work in opencl thread data.
-- Do away with the flaky free_work api in the driver code which would often lose
-the work data in opencl and simply flush it before exiting the opencl scanhash.
-- Use base_work for comparison just for cleanness in __copy_work
-- Remove all static work structs, using the make and free functions.
-- Add pool no. to stale share detected message.
-- Add info about which pool share became stale while resubmitting.
--b Copy the work on opencl_free_work
-- Add an extra slot in the max backlog for ztex to minimise dupes.
-- Do not use or count the getworks submitted which are simply testing that pools
-are still up. This was increasing share leakage and making stats not reflect
-real work.
-- Track all dynamically allocated memory within the work struct by copying work
-structs in a common place, creating freshly allocated heap ram for all arrays
-within the copied struct. Clear all work structs from the same place to ensure
-memory does not leak from arrays within the struct. Convert the gbt coinbase and
-stratum strings within the work struct to heap ram. This will allow arbitrary
-lengths without an upper limit for the strings, preventing the overflows that
-happen with GBT.
-- libztex: Work around ZTEX USB firmware bug exposed by the FreeBSD libusb
-- opencl: Use new dev_error function for REASON_DEV_NOSTART
-
-
-Version 2.9.4 - November 18, 2012
-
-- Provide rudimentary support for the balancing failover strategies with stratum
-and GBT by switching pools silently on getwork requests.
-- Convert remaining modminer and bfl uses of usleep to nmsleep.
-- Convert libztex to nmsleep where possible.
-- Convert unreliable usleep calls to nmsleep calls in ztex driver.
-- Support workid for block submission on GBT pools that use it.
-- Provide rudimentary support for literal ipv6 addresses when parsing stratum
-URLs.
-- Work around libcurl cflags not working on hacked up mingw installations on
-windows.
-- Only increase gpu engine speed by a larger step if the temperature is below
-hysteresis instead of increasing it to max speed.
-- Convert pool not responding and pool alive message on backup pools to verbose
-level only since they mean a single failed getwork.
-- Update work block on the longpoll work item before calling restart threads to
-ensure all work but the longpoll work item gets discarded when we call
-discard_stale from restart_threads.
-- Do not attempt to remove the stratum share hash after unsuccessful submission
-since it may already be removed by clear_stratum_shares.
-- Check against a double for current pool diff.
-- Support for fractional diffs and the classic just-below-1 share all FFs diff
-target.
-
-
-Version 2.9.3 - November 11, 2012
-
-- Make header larger on gen stratum work to accomodate \0 at the end.
-
-
-Version 2.9.2 - November 11, 2012
-
-- Use stratum block change from backup pools as an alternative to longpoll for
-pools that don't support LP.
-- Check share target diff for best_share to be calculated when solo mining.
-- Round some more static string arrays to 4 byte boundaries.
-- There is no need for the static arrays to be larger than required, so long as
-they're 4 byte aligned to appease ARM.
-- Store the full stratum url information in rpc_url for correct configuration
-file saving.
-- Put in a hack to prevent dud work from sneaking into test_work_current being
-seen as a new block.
-- Reset the work->longpoll flag where it will affect stratum work items as well.
-- Check for both coinbase/append and submit/coinbase support before using GBT
-protocol.
-- First pass through testing for GBT should not set probed to true since we are
-about to probe again.
-- Hash1 is only used by the deprecated cpu mining code and never changes so
-remove it from the work struct and bypass needing to process the value for all
-other mining.
-- Get a work item once per minute for all getwork and GBT pools to test they're
-still alive and to maintain a current GBT template.
-- Get a fresh block template with GBT pools on switching to them.
-
-
-Version 2.9.1 - November 6, 2012
-
-- Reset work flags to prevent GBT shares from being submitted as stratum ones
-after switching.
-
-
-Version 2.9.0 - November 6, 2012
-
-- Add endian swap defines for where missing.
-- Only retarget stratum shares to new pool diff if diff has dropped.
-- Remove resetting of probed variable when detecting GBT.
-- Count lost stratum share submits and increase message priority to warning.
-- Only retrieve a new block template for GBT pools that are the current pool.
-- Show which pool untracked share messages have come from.
-- Add management for dead GBT pools.
-- Count lost shares with stratum as submit stale lost.
-- Discard record of stratum shares sent and report lost shares on disconnection
-since they will never be reported back.
-- Swab, don't just swap the bytes in the GBT target.
-- Change status window message for GBT connected pools versus LP.
-- Generate a gbt work item from longpoll when required to set new block and
-message appropriately.
-- Use existing pool submit_old bool from gbt data.
-- Retrieve a new block template if more than 30 seconds has elapsed since the
-last one to keep the data current and test the pool is still alive.
-- Update GBT longpollid every time we request a new longpoll.
-- Manage appropriate response codes for share submission with GBT.
-- Allow the longpoll thread to start with GBT and only set the longpollid once.
-- Correct last few components of GBT block generation courtesy of Luke-jr.
-- Use correct length for offsetting extra nonce and remaining data.
-- Flip all 80 bytes in the flip function which was wrongly named flip256 for its
-purpose.
-- Calculate midstate for gbt work and remove now unused variable.
-- Use a standard function for flipping bytes.
-- Insert the extra nonce and remaining data in the correct position in the
-coinbase.
-- Remove txn size debugging and enlarge gbt block string to prevent overflow.
-- Remove varint display debugging.
-- Build varint correctly for share submission and sleep 5 seconds before
-retrying submit.
-- Make gbt_coinbase large enough for submissions, swap bytes correctly to make a
-header from GBT and encode the number of transactions in share submission.
-- Store the fixed size entries as static variables in GBT in binary form,
-byteswapping as is required.
-- 32 bit hex encoded variables should be in LE with GBT.
-- Target and prevblockhash need to be reversed from GBT variables.
-- Construct block for submission when using GBT.
-- Use same string for debug as for submission and make string larger to cope
-with future GBT messages.
-- Skip trying to decipher LP url if we have GBT support.
-- Store all the transaction hashes in pool->txn_hashes instead of separating
-txn0 and correct generation of merkle root, fixing memory overwrites.
-- Hook into various places to generate GBT work where appropriate.
-- Create extra work fields when generating GBT work.
-- Generate header from correct hashing generation of the merkle root for GBT.
-- Generate the merkle root for gbt work generation.
-- Create a store of the transactions with GBT in the minimum size form required
-to generate work items with a varied coinbase.
-- Create a function that generates a GBT coinbase from the existing pool
-variables.
-- Extract and store the various variables GBT uses when decoding gbt work.
-- Check for invalid json result in work_decode.
-- Decode work in separate functions for getwork vs gbt.
-- Check for the coinbase/append mutable in GBT support to decide whether to use
-it or not.
-- Add a gbt mutex within the pool struct for protecting the gbt values.
-- Convert work decode function to prepare for decoding block templates.
-- Check for GBT support on first probing the pool and convert to using the GBT
-request as the rpc request for that pool.
-- Make the rpc request used with getwork a pool variable to allow it to be
-converted to/from gbt requests.
-- Changes to build prototypes to support building on FreeBSD 9.1-RC2 amd64
-- Free old stratum_work data before replacing it
-- There is no need for addrinfo any more.
-- server and client sockaddr_in are no longer used in struct pool.
-- Merge pull request #322 from luke-jr/bugfix_stratum_tmpwork
-- Set sshare id and swork_id within the sshare mutex to avoid multiple share
-submits with the same id.
-- Initialize temporary stratum work
-
-
-Version 2.8.7 - October 29, 2012
-
-- Fail on select() failing in stratum thread without needing to attempt
-recv_line.
-- Add share to stratum database before sending it again in case we get a
-response from the pool before it's added.
-
-
-Version 2.8.6 - October 29, 2012
-
-- Shorten the initiate stratum connect timeout to 30 seconds.
-- Shorten the stratum timeout on read to 90 seconds to detect unresponsive pool.
-- Display best share difficulty on exit.
-- Make stratum socket fail more robust on windows by disabling the send buffer.
-- Reuse the same curl handle forcing a new connection instead of risking
-derefencing.
-- Add information about submission failure to stratum send.
-- Only add stratum share to database if we succeeded in submitting it, with a
-debug output saying it succeeded.
-- Use keepalive with stratum sockets to improve its ability to detect broken
-connections.
-- Show only the URL in the status bar to avoid long prefixes making for extra
-long lines.
-- Display compact status in menu and update README to reflect current menu
-entries.
-- Add a compact display mode that does not list per device statistics in the
-status window.
-- Add blank spaces after best share displayed.
-- Round a few static string arrays up to 4 byte boundaries for ARM.
-- Display best share diff for scrypt as well.
-- Show the best diff share as "best share" and add info to the README.
-- Display the best diff share submitted so far.
-- Redundant check.
-- The work struct pointer in struct pc_data in findnonce is never freed yet
-there is no need to allocate it separately so make struct work a static part of
-the struct pc_data. s
-
-
-Version 2.8.5 - October 23, 2012
-
-- Handle crash exceptions by trying to restart cgminer unless the --no-restart
-option is used.
-- Switch queued count when choosing a different pool from a failed stratum pool
-in getwork thread.
-- Put a mandatory 5s wait between reattempting a getwork on failure to avoid
-hammering requests.
-- The ATI stream / AMD APP SDK environment variables appear to only interfere
-with win32 builds so bypass them.
-- Make sure to check pool stratum curl exists under lock before attempting any
-recv to not risk dereferencing upon attempting to reinitiate stratum.
-- Avoid redefining macros and align to 4 byte boundaries.
-- API - add Stratum information to pools
-- update FPGA-README for MMQ
-
-
-Version 2.8.4 - October 18, 2012
-
-- Time for dynamic is in microseconds, not ms.
-- x86_64 builds of mingw32 are not supported directly and should just configure
-as generic mingw32 builds since they're NOT 64 bit.
-- Cope with both ATI stream and AMD APP SDK roots being set when building.
-- Use 3 significant digits when suffix string is used and values are >1000.
-- MMQ new initialisation (that works) and clocking control
-- Get rid of unused warning for !scrypt.
-- Use select on stratum send to make sure the socket is writeable.
-- Cope with dval being zero in suffix_string and display a single decimal place
-when significant digits is not specified but the value is greater than 1000.
-- Pad out the suffix string function with zeroes on the right.
-- Failure to calloc in bin2hex is a fatal failure always so just check for that
-failure within the function and abort, simplifying the rest of the code.
-- Provide locking around the change of the stratum curl structures to avoid
-possible races.
-- Bump opencl kernel version numbers.
-- Remove atomic ops from opencl kernels given rarity of more than once nonce on
-the same wavefront and the potential increased ramspeed requirements to use the
-atomics.
-- Clear the pool idle flag in stratum when it comes back to life.
-- Display correct share hash and share difficulty with scrypt mining.
-- Use explicit host to BE functions in scrypt code instead of hard coding
-byteswap everywhere.
-- Show work target diff for scrypt mining.
-- Ease the checking on allocation of padbuffer8 in the hope it works partially
-anyway on an apparently failed call.
-- Watch for buffer overflows on receiving data into the socket buffer.
-- Round target difficulties down to be in keeping with the rounding of detected
-share difficulties.
-- Dramatically simplify the dynamic intensity calculation by oversampling many
-runs through the opencl kernel till we're likely well within the timer
-resolution on windows.
-- String alignment to 4 byte boundaries and optimisations for bin<->hex
-conversions.
-- In opencl_free_work, make sure to still flush results in dynamic mode.
-- Align static arrays to 4 byte boundaries to appease ARM builds for stratum.
-
-
-Version 2.8.3 - October 12, 2012
-
-- Left align values that are suffix_string generated.
-- Share_diff should not be converting the work data to hex.
-- Off by one error.
-- Prevent overflows of the port char array in extract_sockaddr.
-- Disable stratum detection with scrypt.
-- Use the suffix string function when displaying device hashrates.
-- Be consistent with the get_statline function.
-- Use the suffix string function for displaying hashrate with 4 significant
-digits.
-- Display the actual share diff next to the pool required diff, using a suffix
-creation function to prevent values of >1000 being shown in their entirety.
-- Fix 4 * 0 being 0 that would break dynamic intensity mode.
-- Fix wrong byteswap macro being used on mingw32 which was breaking target
-generation on stratum.
-
-
-Version 2.8.2 - October 11, 2012
-
-- Reinstate the history on dynamic intensity mode to damp fluctuations in
-intensity but use an upper limit on how much the value can increase at any time
-to cope with rare overflows.
-- Create a fix-protocol option which prevents cgminer from switching to stratum
-if it's detected.
-- Simplify target generation code.
-- Add support for client.get_version for stratum.
-- Use a 64 bit unsigned integer on the diff target to generate the hex target.
-- Update reconnect message to show whole address including port.
-- Look for null values and parse correct separate array entries for url and port
-with client reconnect commands for stratum.
-- The command for stratum is client.reconnect, not mining.reconnect.
-- Only copy the stratum url to the rpc url if an rpc url does not exist.
-- Implement rudimentary mining.reconnect support for stratum.
-- Ignore the value of stratum_active on calling initiate_stratum and assume
-we're always trying to reinitiate it, and set the active flag to false in that
-function.
-- stratum auth can be unset if we fail to authorise on subsequent calls to
-auth_stratum which undoes the requirement of setting it in one place so set it
-in pool_active.
-
-
-Version 2.8.1 - October 8, 2012
-
-- Use the stratum url as the rpc url advertised if we switch to it.
-- Count an invalid nonce count as a hardware error on opencl.
-- Count each stratum work item as local work.
-- Cope with one stratum pool being the only active pool when it dies by sleeping
-for 5 seconds before retrying to get work from it instead of getting work
-indefinitely.
-- Detect stratum outage based on either select timing out or receiving an empty
-buffer and properly re-establish connection by disabling the stratum_active
-flag, coping with empty buffers in parse_stratum.
-
-
-Version 2.8.0 - October 7, 2012
-
-- Major upgrade - support for the stratum mining protocol.
-- Fix various modminer warnings on mingw.
-- Fix sign warning on windows build for bitforce.
-- Cast socketfail to integer since SOCKET is an unsigned int on windows.
-- Use strtod not strtol for bitforce temp backup.
-- Cope with broken drivers returning nonsense values for bitforce temperatures.
-- Minor warning fixes.
-- Use the stratum thread to detect when a stratum pool has died based on no
-message for 2 minutes.
-- Only set the stratum auth flag once and once the stratum thread is started,
-use that to set/unset the stratum active flag.
-- Only hand off to stratum from getwork if we succeed in initiating the
-protocol.
-- Target should only be 32 bytes copied.
-- Use a static array for work submission data instead of stack memory.
-- Clear the buffer data before sprinting to it.
-- Clear work stratum strings before setting them and add them to debug output.
-- Drop stratum connect failed message to verbose level only since it's a regular
-probing message.
-- TCP Keepalive in curl is only in very recent versions and not required with
-regular messages on stratum anyway.
-- Move stratum sockets to curl infrastructure with locking around send+recv to
-begin support for proxies and ssl.
-- Make detect stratum fail if a proxy has been set up.
-- Stratum does not currently have any proxy support so do not try to switch to
-stratum if a proxy has been specified.
-- Windows doesn't work with MSG_PEEK on recv so move to a continuously updating
-buffer for incoming messages.
-- Alloca is unreliable on windows so use static arrays in util.c stratum code.
-- Begin support for mingw stratum build.
-- Add space to reject reason.
-- Parse the reject reason where possible from stratum share submission.
-- Pass json error value to share result function to be able to parse reject
-reason in stratum.
-- Don't try to parse unneeded parameters in response to mining.subscribe.
-- Remove the sshare hash entry if we failed to send it.
-- Change notify message to info level to avoid spamming repeatedly when a pool
-is down.
-- Check the stratum pool difference has not changed compared to the work diff
-when testing whether a share meets the target or not and retarget if necessary.
-- Bit error in target calculation for stratum.
-- Set work_block in gen_stratum_work for when work is reused to avoid thinking
-it's all stale.
-- Offset the current block detection to the prev block hash.
-- We should be testing for id_val, not id in parse stratum response.
-- Make target on stratum scale to any size by clearing sequential bits according
-to diff.
-- Correct target calculation in gen_stratum_work.
-- If a share result has an error code but still has an id, it is likely a
-reject, not an error.
-- Initiate stratum the first time in pool_active only, allowing us to switch to
-it on getting a failed getwork and detecting the presence of stratum on the url
-at that time.
-- Use 5 second timeout on sock full for now as a temporary workaround.
-- If no stratum url is set by the end of the detect stratum routine, copy the
-sockaddr url.
-- Make all buffers slightly larger to prevent overflow.
-- Make the stratum recv buffer larger than the recvsize.
-- Userpass needs to be copied to user and pass earlier to allow stratum
-authorisation to work with it.
-- Store a sockaddr url of the stripped url used in determining sockaddr to not
-confuse it with the stratum url and fix build warnings.
-- Decrease the queued count with stratum work once it's staged as well.
-- Allow the stratum retry to initiate and auth stratum in pool_alive to make
-sure the stratum thread is started.
-- Avoid duplicating pool->rpc_url and setting pool->stratum_url twice to itself.
-- Detect if a getwork based pool has the X-Stratum header on startup, and if so,
-switch to the stratum based pool.
-- Comment update.
-- Minor message change.
-- Create a work item from a "clean" request from stratum allowing the new block
-to be detected and the appropriate block change message to be given.
-- Use statically allocated stratum strings in struct work to cope with the
-inability to safely deallocate dynamically allocated ram.
-- Use the current pool when deciding whether to reuse work from a stratum source
-rather than the work's previous pool.
-- Copy the stratum url to the rpc url to avoid none being set.
-- Provide locking around stratum send operations to avoid races.
-- Submit shares from stratum through the abstracted submit share function
-detecting what message they belong to and showing the data from the associated
-work, and then deleting it from the hash.
-- Use a more robust mechanism to obtain a \n terminated string over a socket.
-- Abstract out share submit as a function to be useable by stratum.
-- Rename parse_stratum to parse_method as it is only for stratum messages that
-contain methods.
-- Display stratum as mechanism in status line when current pool is running it.
-- Count each stratum notify as a getwork equivalent.
-- Correct nonce submitted with share.
-- Extranonce2 should be added before coinbase2.
-- We should be hashing the binary coinbase, not the hex one.
-- Fix endianness of nonce submitted for stratum.
-- Check that stratum is already active in initiate_stratum to avoid
-de-authorising ourselves by subscribing again.
-- Begin implementing a hash database of submissions and attempt sending results.
-- Copy parameters from stratum work required for share submission.
-- Set lagging flag on first adding a pool to prevent pool slow warning at
-startup.
-- Fix work->target being a 32 byte binary in gen_stratum_work.
-- Store and display stripped url in its own variable.
-- Create machinery to divert work requests to stratum.
-- Generate the work target in gen_stratum_work, setting default diff to 1 in
-case it is not yet set.
-- Generate work data, midstate and hash1 in gen_stratum_work.
-- Generate header created from stratum structures in gen_stratum_work.
-- Generate merkle root hash in gen_stratum_work.
-- Generate the coinbase for generation of stratum based work.
-- The number of transactions is variable so make merkle a variable length
-dynamically allocated array and track how many there are for stratum.
-- Rename nonce2 to n2size reflecting that it's a size variable and not the
-actual nonce.
-- Provide rudimentary support for stratum clean work command in the stratum
-thread.
-- Cope with pools being removed in the stratum thread.
-- Use the pool sock value directly in the stratum thread in case it changes
-after reconnecting.
-- Create a stratum thread per pool that has stratum that monitors the socket and
-serves received data.
-- Check return value of stratum_parse.
-- Complete authorisation in stratum.
-- Implement stratum parsing of notify parameters and storing them in the pool
-stratum work structure.
-- Create helper functions for duplicating json strings to avoid keeping json
-references in use.
-- Append \n in the sock_send function instead of adding it when constructing
-json in stratum.
-- Don't keep any json references around with stratum structures.
-- Create parse_stratum function that hands off stratum parameters to other
-functions to manage pool stratum work struct variables. Implement mining
-difficulty setting.
-- Create helper functions for checking when a socket is ready to read on and
-receive a single line at a time. Begin stratum authorisation process.
-- Provide a helper function for reading a single \n terminated string from a
-socket.
-- Create a stratum work structure to store current work variables.
-- Test specifically for stratum being active in pool_active.
-- Detect stratum in common place when adding urls, and use a bool to tell us
-when it's active.
-- Fix warnings.
-- Extract and store various parameters on stratum init confirming successful
-mining notify.
-- Use existing socket macros and close the socket on failure in init stratum.
-- Initiate stratum and grab first json result.
-- Get detailed addressinfo from the parsed URL for future raw socket usage when
-possible. IPV4 only for now.
-- Prepare for getaddrinfo call.
-- Add data structures to pool struct for socket communications.
-- Put all socket definitions in util.h to allow reusing by added socket
-functions to be used in util.c.
-
-
-Version 2.7.7 - October 7, 2012
-
-- Fix unused warnings on ming build.
-- Fix sign warning in ocl.c
-- fds need to be zeroed before set in modminer.
-- Put scrypt warning on separate line to avoid 0 being shown on windows as
-bufsize.
-- Display correct pool number when block is found.
-- Prevent corrupt values returned from the opencl code from trying to read
-beyond the end of the buffer by masking the value to a max of 15.
-- Icarus USB write failure is also a comms error
-- api.c DEBUG message has no paramter
-- Icarus catch more USB errors and close/reopen the port
-- API-README update cgminer verison number
-- hashmeter fix stats kh/s on 32bit windows
-
-
-Version 2.7.6 - September 24, 2012
-
-- Reorder libztex header include order to fix missing struct definition.
-- Display share difficulty on log with a shortened hash display on submission.
-- API stats add some pool getwork difficulty stats
-- Ignore any pings pushed to the worker threads if the thread is still paused to
-prevent it being enabled and disabled repeatedly.
-- README - FAQ - usermod group - shouldn't remove other groups
-- Test for sequential getwork failures on a pool that might actually be up but
-failing to deliver work as we may end up hammering it repeatedly by mistake.
-- reduce windows compile warnings
-- util.c - bug - proxy - no data end condition
-- As we average gpu time over 5 work intervals for dynamic GPU intensity, there
-is no need to maintain a rolling average and it avoids the potential long term
-corruption of a single overflow value.
-- Test for the now-automatically exported variable AMDAPPSDKROOT when looking
-for the presence of the OpenCL headers.
-- API don't change 'Diff1 Shares' - backward compatability FTW
-- miner.php highlighting correctly handling difficulty
-- API - Add last share difficulty for devices and pool
-- Store and report Accepted,Rejected,Stale difficulty in the summary and API
-- WorkTime - display prevblock for scrypt
-- api.c remove compile warnings
-- Calculate work difficulty for each getwork and display with WorkTime debug
-- remove MMQ unused variable warning
-- FPGA - allow long or short device names in detect code + style police
-- WorkTime - multiple nonce per work and identify the work source
-- Optional WorkTime details with each Accepted/Rejected work item
-- Icarus - ignore hardware errors in timing mode
-- miner.php oops - mistype
-- miner.php by default don't display IP/Port numbers in error messages
-- api.c all STATUS messages automatically escaped
-- api.c add missing escape for comma in MSG_PGAUNW
-- API add display of and setting queue,scantime,expiry
-- HW: dont submit bad shares
-- save individual pool proxy settings to config
-- --default-config - allow command line to define the default configuration file
-for loading and saving
-- API-README update for pools proxy info
-- README URL proxy must use quote so show in the example
-- bug: remove proxy: from the front of the proxy used
-- CURL support for individual proxy per pool and all proxy types
-- README spelling/etc
-- README - FPGA device FAQ
-- HW: error counter auto for all devices - ztex code not fixed
-- API pgaidentify - unsupported message should be a warning
-- API/BFL identify a device - currently only BFL to flash the led
-- BFL add throttle count to internal stats + API
-- BFL: missing device id in log message
-- miner.php correct to new Diff1 Work field names
-- API add device diff1 work
-- API-README update
-- api.c Correct diff1 field name
-- count device diff1 shares
-- API-README more debug parameter information
-- API allow full debug settings control
-
-
-Version 2.7.5 - August 31, 2012
-
-- Adjust opencl intensity when adjusting thread count to prevent it getting
-pegged at a value below the minimum threads possible.
-- miner.h max_hashes -> int64_t
-- Keep the local block number in the blocks structs stored and sort them by
-number to guarantee we delete the oldest when ageing the block struct entries.
-- Use correct sdk version detection for SDK 2.7
-- Revert "Pick worksize 256 with Cypress if none is specified."
-- Test for lagging once more in queue_request to enable work to leak to backup
-pools.
-- There is no need to try to switch pools in select_pool since the current pool
-is actually not affected by the choice of pool to get work from.
-- Only clear the pool lagging flag if we're staging work faster than we're using
-it.
-- needed flag is currently always false in queue_request. Remove it for now.
-- thr is always NULL going into queue_request now.
-
-
-Version 2.7.4 - August 23, 2012
-
-- Perform select_pool even when not lagging to allow it to switch back if needed
-to the primary.
-- Simplify macros in output kernels avoiding apparent loops and local variables.
-- Carry the needed bool over the work command queue.
-- Move the decision to queue further work upstream before threads are spawned
-based on fine grained per-pool stats and increment the queued count immediately.
-- Track queued and staged per pool once again for future use.
-- OpenCL 1.0 does not have native atomic_add and extremely slow support with
-atom_add so detect opencl1.0 and use a non-atomic workaround.
-- Pools: add RollTime info to API 'stats' and 'Stats' button in miner.php
-
-
-Version 2.7.3 - August 22, 2012
-
-- Minimise the number of getwork threads we generate.
-
-
-Version 2.7.2 - August 22, 2012
-
-- Pick worksize 256 with Cypress if none is specified.
-- Give warning with sdk2.7 and phatk as well.
-- Whitelist sdk2.7 for diablo kernel as well.
-- Only keep the last 6 blocks in the uthash database to keep memory usage
-constant. Storing more is unhelpful anyway.
-- BFL Flash - always distribute source
-- Increase kernel versions signifying changed APIs.
-- BFL flash - include source in builds and more FPGA-README
-- Check we haven't staged work while waiting for a curl entry before proceeding.
-- Use atomic ops to never miss a nonce on opencl kernels, including nonce==0,
-also allowing us to make the output buffer smaller.
-- Remove compile errors/warnings and document compile/usage in FPGA-README
-- bitforce-firmware-flash.c by Luke-jr
-- Ignore the submit_fail flag when deciding whether to recruit more curls or not
-since we have upper bounds on how many curls can be recruited, this test is
-redundant and can lead to problems.
-- API-README update cgminer version number
-- API-README fix groups P: example mistake
-- API-README add COIN and other edits
-- gpu->hit should be reset on new work as well.
-- Do not add time to dynamic opencl calculations over a getwork.
-- miner.php allow 'coin' is custom pages
-
-
-Version 2.7.1 - August 21, 2012
-
-- Update windows build instructions courtesy of sharky.
-- Increase max curls to number of mining threads + queue * 2, accounting for up
-and downstream comms.
-- Queue enough requests to get started.
-- There is no point trying to clone_work in get_work() any more since we clone
-on every get_work_thread where possible.
-- There is no point subtracting 1 from maxq in get_work_thread.
-- Only set lagging flag once there are no staged work items.
-- select_pool does not switch back to the primary once lagging is disabled.
-- miner.php allow page title to be defined in myminer.php
-- Free work before retrying in get_work_thread.
-- Increment total work counter under mutex lock.
-- Increment the queued count after the curl is popped in case there's a delay
-waiting on curls and we think we've queued work when in fact we're waiting
-- API new command 'coin' with mining information
-- Do the dynamic timing in opencl code over a single pass through scanhash to
-make sure we're only getting opencl times contributing to the measured inte
-- Increase curl reaping time to 5 minutes since comms between  curl requests can
-be 2 mins apart with lots of rolltime.
-- No need for extra variable in hash_push.
-- Remove short options -r and -R to allow them to be reused and remove readme
-entries for deprecated options.
-- Avoid attempting to recursively lock the console mutex by disabling warnings
-in gpu_fanpercent when fanspeed monitoring fails on windows. Debugged by l
-- Deprecate the opt_fail_pause parameter, leaving a null placeholder for
-existing configurations.
-- Don't pause after failed getwork, set lagging flag and reassess.
-- Add message to share if it's a resubmit.
-- We should not be pausing in trying to resubmit shares.
-- Get rid of the extending fail pause on failed connects since we discard work
-after a period.
-- get_work always returns true so turn it into a void function.
-- get_work never returns false so get rid of fail pause loop.
-- Get rid of pause and retry from get_upstream_work so we only do it from one
-place.
-- Deprecate the opt_retries feature as no one wants cgminer to automatically
-abort. Leave a null placeholder for configurations that still have it.
-- Reinstate fix ADL gpu-map not working when there are more ADL devices than
-openCL patch by Nite69. Add virtual adl mapping for when none is specified o
-- miner.php show summary Diff1 Shares total
-- miner.php fix Work Utility totals
-- miner.php format new Work Utility and Diff1 Shares
-- API V1.17 show Work Utility and Diff1 Shares
-
-
-
-Version 2.7.0 - August 18, 2012
-
-- Introduce a new statistic, Work Utility, which is the number of difficulty 1
-shares solved per minute. This is useful for measuring a relative rate of work
-that is independent of reject rate and target difficulty.
-- Implement a new pool strategy, BALANCE, which monitors work performed per pool
-as a rolling average every 10 minutes to try and distribute work evenly over all
-the pools. Do this by monitoring diff1 solutions to allow different difficulty
-target pools to be treated equally, along with solo mining. Update the
-documentation to describe this strategy and more accurately describe the
-load-balance one.
-- Getwork fail was not being detected. Remove a vast amount of unused variables
-and functions used in the old queue request mechanism and redefine the getfail
-testing.
-- Don't try to start devices that don't support scrypt when scrypt mining.
-- 0 is a valid return value for read so only break out if read returns -1.
-- Consider us lagging only once our queue is almost full and no staged work.
-- Simplify the enough work algorithm dramatically.
-- Only queue from backup pools once we have nothing staged.
-- Don't keep queueing work indefinitely if we're in opt failover mode.
-- Make sure we don't opt out of queueing more work if all the queued work is
-from one pool.
-- Set lagging flag if we're on the last of our staged items.
-- Reinstate clone on grabbing work.
-- Grab clones from hashlist wherever possible first.
-- Cull all the early queue requests since we request every time work is popped
-now.
-- Keep track of staged rollable work item counts to speed up clone_available.
-- Make expiry on should_roll to 2/3 time instead of share duration since some
-hardware will have very fast share times.
-- Do the cheaper comparison first.
-- Check that we'll get 1 shares' worth of work time by rolling before saying we
-should roll the work.
-- Simplify all those total_secs usages by initialising it to 1 second.
-- Overlap queued decrementing with staged incrementing.
-- Artificially set the pool lagging flag on pool switch in failover only mode as
-well.
-- Artificially set the pool lagging flag on work restart to avoid messages about
-slow pools after every longpoll.
-- Factor in opt_queue value into enough work queued or staged.
-- Roll work whenever we can on getwork.
-- Queue requests for getwork regardless and test whether we should send for a
-getwork from the getwork thread itself.
-- Get rid of age_work().
-- 0 is a valid return value for read so only break out if read returns -1.
-- Offset libusb reads/writes by length written as well in ztex.
-- Cope with timeouts and partial reads in ztex code.
-- fpga serial I/O extra debug (disabled by default)
-
-
-Version 2.6.5 - August 15, 2012
-
-- Don't try to get bitforce temperature if we're polling for a result to
-minimise the chance of interleaved responses.
-- Set memory clock based on memdiff if present from with engine changes,
-allowing it to parallel manual changes from the menu as well.
-- Increase the timeout on bitforce as per Paul Sheppard's suggestion to account
-for throttling + work time + excess.
-- Fix ADL gpu-map not working when there are more ADL devices than openCL.
-Initial patch supplied by Nite69. Modified to suit.
-- Windows' timer resolution is limited to 15ms accuracy. This was breaking
-dynamic intensity since it tries to measure below this. Since we are repeatedly
-sampling similar timeframes, we can average the gpu_us result over 5 different
-values to get very fine precision.
-- Fix harmless unused warnings in scrypt.h.
-- api.c typo
-- API allow display/change failover-only setting
-- Check we are not lagging as well as there is enough work in getwork.
-- Minimise locking and unlocking when getting counts by reusing shared mutex
-lock functions.
-- Avoid getting more work if by the time the getwork thread is spawned we find
-ourselves with enough work.
-- The bitforce buffer is cleared and hw error count incremented on return from a
-failed send_work already so no need to do it within the send_work function.
-- miner.php allow a custom page section to select all fields with '*' - e.g. to
-create a STATS section on a custom page
-- Escape " and \ when writing json config file
-- miner.php optional single rig totals (on by default)
-
-
-Version 2.6.4 - August 7, 2012
-
-- Convert the serial autodetect functions to use int instead of char to
-enumerate devices.
-- Make the serial open timeout for BFL generically 1 second on windows.
-- Deuglify windows autodetect code for BFL.
-- There is no point zeroing temperature in BFL if we fail to get a response, and
-we should register it as a HW error, suggesting throttling.
-- Update SCRYPT README with information about HW errors.
-- Use the scrypt CPU code to confirm results from OCL code, and mark failures as
-HW errors, making it easier to tune scrypt parameters.
-- We may as well leave one curl still available per pool instead of reaping the
-last one.
-- Need to recheck the pool->curls count on regaining the pool lock after the
-pthread conditional wait returns.
-- Display reaped debug message outside mutex lock to avoid recursive locking.
-- Add specific information when ADL detects error -10 saying the device is not
-enabled.
-- api.c update API start message and include port number
-- miner.php ignore arg when readonly
-- miner.php allow pool inputs: delete, addpool, poolpriority
-
-
-Version 2.6.3 - August 5, 2012
-
-- Count likely throttling episodes on bitforce devices as hardware errors.
-- Style cleanups.
-- Use FTD2XX.DLL on Windows to autodetect BitFORCE SHA256 devices.
-- Make pool_disabled the first in the enums == 0, fixing the pool enabled count
-which compares if value is not enabled before enabling it.
-- Correct writing of scrypt parameters to config file based on command line
-parameters only.
-- Use different variables for command line specified lookup gap and thread
-concurrency to differentiate user defined versus auto chosen values.
-- Queue a request on pool switch in case we have no work from the new pool yet.
-- Display failover only mode in pool menu and allow it to be toggled live.
-- Reinstate check for system queueing lag when the current pool's queue is maxed
-out, there is no staged work, and the work is needed now.
-- There is no need for pool active testing to be mandatory any more with queue
-request changes.
-- Fix harmless warnings.
-- Check the current staged and global queued as well before queueing requests.
-Discard stales before ageing work in the watchdog thread. Queue requests after
-discarding and ageing work in watchdog thread. Display accurate global queued in
-curses output. Reuse variable in age_work().
-- The queueing mechanism has become a complex state machine that is no longer
-predictable. Rewrite it from scratch watching only current queues in flight and
-staged work available on a pool by pool basis.
-- API remove unused warning in non-GPU compile
-- api.c in linux allow to open a closed socket in TIME_WAIT
-- Queue an extra request whenever staged work drops below mining thread count in
-hash_pop.
-- Update debian package configs to v2.6.2
-
-
-Version 2.6.2 - August 3, 2012
-
-- Scrypt mining does not support block testing yet so don't try to print it.
-- Clear the bitforce buffer whenever we get an unexpected result as it has
-likely throttled and we are getting cached responses out of order, and use the
-temperature monitoring as a kind of watchdog to flush unexpected results.
-- It is not critical getting the temperature response in bitforce so don't
-mandatorily wait on the mutex lock.
-- Check there is a cutoff temp actually set in bitforce before using it as a cut
-off value otherwise it may think it's set to zero degrees.
-- We dropped the temporary stopping of curl recruiting on submit_fail by
-mistake, reinstate it.
-- Make threads report in either side of the scanhash function in case we miss
-reporting in when restarting work.
-- Don't make mandatory work and its clones last forever.
-- Make test work for pool_active mandatory work items to smooth out staged work
-counts when in failover-only mode.
-- Add debugging output when work is found stale as to why.
-- Print the 3 parameters that are passed to applog for a debug line in
-bitforce.c
-- Clear bitforce buffer on init as previously.
-- Add some headroom to the number of curls available per pool to allow for
-longpoll and sendwork curls.
-- Revert "Revert "Change BFL driver thread initialising to a constant 100ms
-delay between devices instead of a random arrangement.""
-- Revert "Remove bitforce_thread_init"
-- Show the correct base units on GPU summary.
-- Differentiate between the send return value being a bool and the get return
-value when managing them in bitforce scanhash.
-- 23a8c60 Revert "bitforce: Skip out of sending work if work restart requested"
-
-
-Version 2.6.1 - July 30, 2012
-
-- Display scrypt as being built in as well.
-- Fix build warning about KL_SCRYPT when built without scrypt support.
-- Remove the low hash count determinant of hardware being sick. A low hash rate
-can be for poor network connectivity or scrypt mining, neither of which are due
-to a sick device.
-- api.c poolpriority changes
-
-
-Version 2.6.0 - July 29, 2012
-
-- Display kilohash when suitable, but store the global mhash value still truly
-in megahashes to not break the API output.
-- Don't try and print curses output for devices that won't fit on the screen.
-- Add scrypt documentation in the form of a separate readme.
-- Fix build error without scrypt enabled.
-- Limit total number of curls recruited per pool to the number of mining threads
-to prevent blasting the network when we only have one pool to talk to.
-- bitforce: Skip out of sending work if work restart requested
-- Keep a counter of enabled pools and use that instead of iterating over the
-pool list. Use that value to ensure we don't set the last remaining active pool
-to the rejecting state.
-- fpgautils: add support for 57.6 kBd serial
-- miner.php add a socket RCV timeout for if cgminer is hung and the API thread
-is still running
-- Limit thread concurrency for scrypt to 5xshaders if shaders is specified.
-- Simplify repeated use of gpus[gpu]. in ocl.c
-- Find the nearest power of 2 maximum alloc size for the scrypt buffer that can
-successfully be allocated and is large enough to accomodate the thread
-concurrency chosen, thus mapping it to an intensity.
-- Don't make opt_scrypt mandatory blocking with opencl code.
-- Update kernel versions reflecting changes in the API.
-- Make the thread concurrency and lookup gap options hidden on the command line
-and autotune parameters with a newly parsed --shaders option.
-- Fix target testing with scrypt kernel as it would have been missing shares
-below target.
-- Bugfix: Use a mutex to control non-curses output
-- Simplify code to a single vprintf path for curses-less printing
-- Move opt_quiet check to my_log_curses, so it works for curses-less builds
-- Use log_generic for vapplog to cut down on code duplication
-- Add space to log output now that there is more screen real estate available.
-- BFL force all code to timeout to avoid hanging
-- Bugfix: Copy argv[0] given to dirname()
-- Always create the largest possible padbuffer for scrypt kernels even if not
-needed for thread_concurrency, giving us some headroom for intensity levels.
-- Use the detected maximum allocable memory on a GPU to determine the optimal
-scrypt settings when lookup_gap and thread_concurrency parameters are not given.
-- Check the maximum allocable memory size per opencl device.
-- Add debugging output if buffer allocation fails for scrypt and round up
-bufsize to a multiple of 256.
-- Nonce testing for btc got screwed up, leading to no accepted shares. Fix it.
-- Display size of scrypt buffer used in debug.
-- Allow intensities up to 20 if scrypt is compiled in.
-- Add name to scrypt kernel copyright.
-- Allow lookup gap and thread concurrency to be passed per device and store
-details in kernel binary filename.
-- Ignore negative intensities for scrypt.
-- Change the scale of intensity for scrypt kernel and fix a build warning.
-- Correct target value passed to scrypt kernel.
-- Use 256 output slots for kernels to allow 1 for each worksize.
-- Test the target in the actual scrypt kernel itself saving further
-calculations.
-- Reinstate GPU only opencl device detection.
-- Decrease lookup gap to 1. Does not seem to help in any way being 2.
-- Fix build.
-- Make pad0 and pad1 local variable in scrypt kernel.
-- Constify input variable in scrypt kernel.
-- Send correct values to scrypt kernel to get it finally working.
-- Create command queue before compiling program in opencl.
-- Detach pthread from within the api thread in case it is terminated due to not
-being instantiated before pthread_cancel is called from main, leading to a
-segfault.
-- Debug output per thread hashrate is out by a factor of 1000.
-- Initialise mdplatform.
-- Find the gpu platform with the most devices and use that if no platform option
-is passed.
-- Allow more platforms to be probed if first does not return GPUs.
-- Fix external scrypt algo missing.
-- Limit scrypt to 1 vector.
-- Handle KL_SCRYPT in config write.
-- Get rid of stuff.
-- Don't enqueuewrite buffer at all for pad8 and pass work details around for
-scrypt in dev_blk.
-- Set the correct data for cldata and prepare for pad8 fixes.
-- Bugfix: Fix build without curses but with OpenCL
-- Find the gpu platform with the most devices and use that if no platform option
-is passed.
-- Allow more platforms to be probed if first does not return GPUs.
-- Get rid of spaces in arrays in scrypt kernel.
-- Start with smaller amount of hashes in cpu mining to enable scrypt to return
-today sometime.
-- Show Khash hashrates when scrypt is in use.
-- Free the scratchbuf memory allocated in scrypt and don't check if CPUs are
-sick since they can't be. Prepare for khash hash rates in display.
-- Add cpumining capability for scrypt.
-- Set scrypt settings and buffer size in ocl.c code to be future modifiable.
-- Cope with when we cannot set intensity low enough to meet dynamic interval by
-inducing a forced sleep.
-- Make dynamic and scrypt opencl calls blocking.
-- Calculate midstate in separate function and remove likely/unlikely macros
-since they're dependent on pools, not code design.
-- bitforce: Use "full work" vs "nonce range" for kernel name
-- Display in debug mode when we're making the midstate locally.
-- Fix nonce submission code for scrypt.
-- Make sure goffset is set for scrypt and drop padbuffer8 to something
-manageable for now.
-- Set up buffer8 for scrypt.
-- Build fix for opt scrypt.
-- Don't check postcalc nonce with sha256 in scrypt.
-- Don't test nonce with sha and various fixes for scrypt.
-- Make scrypt buffers and midstate compatible with cgminer.
-- Use cgminer specific output array entries in scrypt kernel.
-- Provide initial support for the scrypt kernel to compile with and mine scrypt
-with the --scrypt option.
-- Enable completely compiling scrypt out.
-- Begin import of scrypt opencl kernel from reaper.
-- bitforce_get_result returns -1 on error now.
-- Check return value of read in BFgets
-- Bugfix: Make our Windows nanosleep/sleep replacements standards-compliant
-(which fixes nmsleep) and include compat.h for bitforce (for sleep)
-- rpc: Use a single switch statement for both stringifications of cgpu->status
-- Fix whitespace mangling.
-- miner.php fix rig # when miners fail
-- Only try to shut down work cleanly if we've successfully connected and started
-mining.
-- Use switch statement for cgpu->status and fix spelling.
-- Abbrv. correction
-- Bugfix: Don't declare devices SICK if they're just busy initialising
-- Bugfix: Calculate nsec in nmsleep correctly
-- Bugfix: Adapt OpenCL scanhash errors to driver API change (errors are now -1,
-not 0)
-- Remove superfluous ave_wait
-- Put kname change for broken nonce-range back in
-- Add average wait time to api stats
-- Change BFL driver thread initialising to a constant 100ms delay between
-devices instead of a random arrangement.
-- Spelling typo.
-- Time opencl work from start of queueing a kernel till it's flushed when
-calculating dynamic intensity.
-- Modify te scanhash API to use an int64_t and return -1 on error, allowing zero
-to be a valid return value.
-- Check for work restart after the hashmeter is invoked for we lose the hashes
-otherwise contributed in the count.
-- Remove disabled: label from mining thread function, using a separate
-mt_disable function.
-- Style changes.
-- Missed one nonce-range disabling.
-- Add average return time to api stats
-- miner.php allow rig names in number buttons
-- Remove bitforce_thread_init The delay thing does nothing useful... when long
-poll comes around, all threads restart at the same time anyway.
-- Change timeouts to time-vals for accuracy.
-- fix API support for big endian machines
-- Cope with signals interrupting the nanosleep of nmsleep.
-- Use standard cfsetispeed/cfsetospeed to set baud rate on *nix
-- miner.php split() flagged deprecated in PHP 5.3.0
-- More BFL tweaks. Add delay between closing and reopening port. Remove buffer
-clear in re-init Add kernel type (mini-rig or single)
-- Make long timeout 10seconds on bitforce for when usleep or nanosleep just
-can't be accurate...
-
-
-Version 2.5.0 - July 6, 2012
-
-- Fix --benchmark not working since the dynamic addition of pools and pool
-stats.
-- Make disabling BFL nonce range support a warning since it has to be explicitly
-enabled on the command line now.
-- miner.php allow renaming table headers
-- Make bitforce nonce range support a command line option --bfl-range since
-enabling it decrease hashrate by 1%.
-- Add sanity checking to make sure we don't make sleep_ms less than 0 in
-bitforce.
-- The fastest minirig devices need a significantly smaller starting sleep time.
-- Use a much shorter initial sleep time to account for faster devices and nonce
-range working, and increase it if nonce range fails to work.
-- Use nmsleep instead of usleep in bitforce.
-- Provide a ms based sleep function that uses nanosleep to avoid the inaccuracy
-of usleep on SMP systems.
-- delay_time_ms is always set so need not be initialised in bitforce.
-- Increase bitforce timeout to 10 seconds.
-- Add more hysteresis and poll ~5 times to allow for timer delays in bitforce
-devices.
-- miner.php allow alternating line colours (off by default)
-- Display the actual duration of wait when it is greater than the cutoff.
-- Set nonce to maximum once we determine nonce range support is broken.
-- Initial wait time is always known so no need to zero it beforehand in
-bitforce.
-- No point counting wait time until the work is actually sent to bitforce
-devices.
-- Use string comparison functions instead of explicit comparisons.
-- Account for wait_ms time when nonce_range is in use on BFL.
-- Split nonces up into 1/5 chunks when nonce range is supported.
-- limit clear buffer iterations.
-- Ad fd check to clear buffer.
-- miner.php remove incorrect 'DATE' error message
-- miner.php allow summary header in custom pages
-- Disable nonce range support in BFL when broken support is detected.
-- Restart_wait is only called with a ms value so incorporate that into the
-function.
-- Only try to adjust dev width when curses is built in.
-- miner.php define custom sum fields as a simple array
-- Fix off-by-one error in nonce increment in bfl.
-- Use BE when setting nonce in bitforce nonce range work.
-- Enable nonce range in the normal init sequence for bfl.
-- Queue extra work at 2/3 differently depending on whether we're using nonce
-range or not.
-- Initially enable support for nonce range support on bfl, splitting nonces up
-into 3/4 size and only disable it if it fails on work submit.
-- Attempt to detect nonce range support in BFL by sending work requring its
-support.
-- Limit retrying on busy for up to BITFORCE_TIMEOUT_MS
-- Attempt to initialise while bitforce device returns BUSY.
-- Extend length of string that can be passed to BFL devices.
-- Fix signedness warning.
-- Adjust device width column to be consistent.
-- Use cgpu-> not gpus[] in watchdog thread.
-- Add api stats (sleep time)
-- Timing tweaks Added long and short timeouts, short for detecting throttling,
-long to give up totally. Reset sleep time when device re-initialised Still check
-results after timeout Back up a larger time if result on first poll.
-- Add API Notify counter 'Comms Error'
-- Style police on api.c
-- Do all logging outside of the bitforce mutex locking to avoid deadlocks.
-- Remove applog call from bfwrite to prevent grabbing nested mutexes.
-- Bitforce style changes.
-- Minor style changes.
-- Remove needless roundl define.
-- Made JSON error message verbose.
-- Fine-tune timing adjustment. Also remove old work_restart timing.
-- Check for gpu return times of >= 0, not just 0, to fix intensity dropping to
--10.
-- Restart is zeroed in the mining thread so no need to do it inside the bitforce
-code.
-- More improvements to comms. BFL return nothing when throttling, so should not
-be considered an error. Instead repeat with a longer delay.
-- Polling every 10ms there's not much point checking the pthread_cond_timedwait
-as it just adds overhead. Simply check the value of work_restart in the bfl main
-polling loop.
-- Use a pthread conditional that is broadcast whenever work restarts are
-required. Create a generic wait function waiting a specified time on that
-conditional that returns if the condition is met or a specified time passed to
-it has elapsed. Use this to do smarter polling in bitforce to abort work, queue
-more work, and check for results to minimise time spent working needlessly.
-- Add busy time to wait time.
-- api.c put version up to 1.14
-- Add tiny delay after writing to BFL Change BFL errors to something more human
-readable Send work busy re-tries after 10ms delay
-
-
-Version 2.4.4 - July 1, 2012
-
-- Fix builds on non gnu platforms.
-- api.c ensure old mode is always available when not using --api-groups + quit()
-on param errors
-- Implement rudimentary X-Mining-Hashrate support.
-- Detect large swings in temperature when below the target temperature range and
-change fan by amounts dependant on the value of tdiff.
-- Adjust the fanspeed by the magnitude of the temperature difference when in the
-optimal range.
-- Revert "Restarting cgminer from within after ADL has been corrupted only leads
-to a crash. Display a warning only and disable fanspeed monitoring."
-- api.c fix json already closed
-- implement and document API option --api-groups
-- Put upper bounds to under 2 hours that work can be rolled into the future for
-bitcoind will deem it invalid beyond that.
-- define API option --api-groups
-- api.c allow unwell devices to be enabled so they can be cured
-- miner.php - fix/enable autorefresh for custom pages
-- miner.php allow custom summary pages - new 'Mobile' summary
-- Work around pools that advertise very low expire= time inappropriately as this
-leads to many false positives for stale shares detected.
-- Only show ztex board count if any exist.
-- There is no need for work to be a union in struct workio_cmd
-- fpgautils.c include a debug message for all unknown open errors
-- Don't keep rolling work right up to the expire= cut off. Use 2/3 of the time
-between the scantime and the expiry as cutoff for reusing work.
-- Log a specific error when serial opens fail due to lack of user permissions
-- Increase GPU timing resolution to microsecond and add sanity check to ensure
-times are positive.
-- Opencl code may start executing before the clfinish order is given to it so
-get the start timing used for dynamic intensity from before the kernel is
-queued.
-- fpgautils.c - set BAUD rate according to termio spec
-- fpgautils.c - linux ordering back to the correct way
-- miner.php remove unneeded '.'s
-- miner.php add auto refresh options
-- miner.php add 'restart' next to 'quit'
-- miner.php make fontname/size configurable with myminer.php
-- Make the pools array a dynamically allocated array to allow unlimited pools to
-be added.
-- Make the devices array a dynamically allocated array of pointers to allow
-unlimited devices.
-- Dynamic intensity for GPUs should be calculated on a per device basis. Clean
-up the code to only calculate it if required as well.
-- Use a queueing bool set under control_lock to prevent multiple calls to
-queue_request racing.
-- Use the work clone flag to determine if we should subtract it from the total
-queued variable and provide a subtract queued function to prevent looping over
-locked code.
-- Don't decrement staged extras count from longpoll work.
-- Count longpoll's contribution to the queue.
-- Increase queued count before pushing message.
-- Test we have enough work queued for pools with and without rolltime
-capability.
-- As work is sorted by age, we can discard the oldest work at regular intervals
-to keep only 1 of the newest work items per mining thread.
-- Roll work again after duplicating it to prevent duplicates on return to the
-clone function.
-- Abstract out work cloning and clone $mining_threads copies whenever a rollable
-work item is found and return a clone instead.
-- api.c display Pool Av in json
-- Take into account average getwork delay as a marker of pool communications
-when considering work stale.
-- Work out a rolling average getwork delay stored in pool_stats.
-- Getwork delay in stats should include retries for each getwork call.
-- Walk through the thread list instead of searching for them when disabling
-threads for dynamic mode.
-- Extend nrolltime to support the expiry= parameter. Do this by turning the
-rolltime bool into an integer set to the expiry time. If the pool supports
-rolltime but not expiry= then set the expiry time to the standard scantime.
-- When disabling fanspeed monitoring on adl failure, remove any twin GPU
-association. This could have been leading to hangs on machines with dual GPU
-cards when ADL failed.
-- modminer: Don't delay 2nd+ FPGAs during work restart
-- Disable OpenCL code when not available.
-- Fix openwrt crashing on regeneratehash() by making check_solve a noop.
-- FPGA - allow device detect override without an open failure
-- Fix sign warning.
-
-
-Version 2.4.3 - June 14, 2012
-
-- can_roll and should_roll should have no bearing on the cycle period within the
-miner_thread so remove it.
-- Check for strategy being changed to load balance when enabling LPs.
-- Check that all threads on the device that called get_work are waiting on
-getwork before considering the pool lagging.
-- Iterate over each thread belonging to each device in the hashmeter instead of
-searching for them now that they're a list.
-- When using rotate pool strategy, ensure we only select from alive enabled
-pools.
-- Start longpoll from every pool when load balance strategy is in use.
-- Add mandatory and block fields to the work struct. Flag any shares that are
-detected as blocks as mandatory to submit, along with longpoll work from a
-previously rejecting pool.
-- Consider the fan optimal if fanspeed is dropping but within the optimal speed
-window.
-- Fix typo in some API messages (succeess/success)
-- api.c MMQ stat bugs
-- Bugfix: Fix warnings when built without libudev support
-- Bugfix: slay a variety of warnings
-- Bugfix: modminer: Fix unsigned/signed comparison and similar warnings
-- API add ModMinerQuad support
-- Bugfix: Honour forceauto parameter in serial_detect functions
-- modminer: Temperature sensor improvements
-- modminer: Make log messages more consistent in format
-- Only adjust GPU speed up if the fanspeed is within the normal fanrange and
-hasn't been turned to maximum speed under overheat conditions.
-- ModMiner use valid .name
-- New driver: BTCFPGA ModMiner
-- Abstract generally useful FPGA code into fpgautils.c
-- API add stats for pool getworks
-- miner.php option to hide specific fields from the display
-- miner.php add version numbers to the summary page
-- Update debian configs to v2.4.2
-- Add API and FPGA READMEs into Makefile to be included in source distribution.
-- Icarus - fix unit64_t printf warnings
-
-
-Version 2.4.2 - June 2, 2012
-
-- API.class compiled with Java SE 6.0_03 - works with Win7x64
-- miner.php highlight devs too slow finding shares (possibly failing)
-- API update version to V1.11 and document changes
-- API save default config file if none specified
-- api.c save success incorrectly returns error
-- api.c replace BUFSIZ (linux/windows have different values)
-- Move RPC API content out of README to API-README
-- Open a longpoll connection if a pool is in the REJECTING state as it's the
-only way to re-enable it automatically.
-- Use only one longpoll as much as possible by using a pthread conditional
-broadcast that each longpoll thread waits on and checks if it's the current pool
-before
-- If shares are known stale, don't use them to decide to disable a pool for
-sequential rejects.
-- Restarting cgminer from within after ADL has been corrupted only leads to a
-crash. Display a warning only and disable fanspeed monitoring.
-- Icarus: fix abort calculation/allow user specified abort
-- Icarus: make --icarus-timing hidden and document it in FPGA-README
-- Icarus: high accuracy timing and other bitstream speed support
-- add-MIPSEB-to-icarus-for-BIG_ENDIAN
-- work_decode only needs swab32 on midstate under BIG ENDIAN
-- add compile command to api-example.c
-- save config bugfix: writing an extra ',' when no gpus
-- Add dpkg-source commits
-
-
-Version 2.4.1 - May 6, 2012
-
-- In the unlikely event of finding a block, display the block solved count with
-the pool it came from for auditing.
-- Display the device summary on exit even if a device has been disabled.
-- Use correct pool enabled enums in api.c.
-- Import Debian packaging configs
-- Ensure we test for a pool recovering from idle so long as it's not set to
-disabled.
-- Fix pool number display.
-- Give cgminer -T message only if curses is in use.
-- Reinit_adl is no longer used.
-- API 'stats' allow devices to add their own stats also for testing/debug
-- API add getwork stats to cgminer - accesable from API 'stats'
-- Don't initialise variables to zero when in global scope since they're already
-initialised.
-- Get rid of unitialised variable warning when it's false.
-- Move a pool to POOL_REJECTING to be disabled only after 3 minutes of
-continuous rejected shares.
-- Some tweaks to reporting and logging.
-- Change FPGA detection order since BFL hangs on an ICA
-- API support new pool status
-- Add a temporarily disabled state for enabled pools called POOL_REJECTING and
-use the work from each longpoll to help determine when a rejecting pool has
-started working again. Switch pools based on the multipool strategy once a pool
-is re-enabled.
-- Removing extra debug
-- Fix the benchmark feature by bypassing the new networking code.
-- Reset sequential reject counter after a pool is disabled for when it is
-re-enabled.
-- Icarus - correct MH/s and U: with work restart set at 8 seconds
-- ztex updateFreq was always reporting on fpga 0
-- Trying harder to get 1.15y working
-- Specifying threads on multi fpga boards extra cgpu
-- Missing the add cgpu per extra fpga on 1.15y boards
-- API add last share time to each pool
-- Don't try to reap curls if benchmarking is enabled.
-
-
-Version 2.4.0 - May 3, 2012
-
-- Only show longpoll warning once when it has failed.
-- Convert hashes to an unsigned long long as well.
-- Detect pools that have issues represented by endless rejected shares and
-disable them, with a parameter to optionally disable this feature.
-- Bugfix: Use a 64-bit type for hashes_done (miner_thread) since it can overflow
-32-bit on some FPGAs
-- Implement an older header fix for a label existing before the pthread_cleanup
-macro.
-- Limit the number of curls we recruit on communication failures and with
-delaynet enabled to 5 by maintaining a per-pool curl count, and using a pthread
-conditional that wakes up when one is returned to the ring buffer.
-- Generalise add_pool() functions since they're repeated in add_pool_details.
-- Bugfix: Return failure, rather than quit, if BFwrite fails
-- Disable failing devices such that the user can attempt to re-enable them
-- Bugfix: thread_shutdown shouldn't try to free the device, since it's needed
-afterward
-- API bool's and 1TBS fixes
-- Icarus - minimise code delays and name timer variables
-- api.c V1.9 add 'restart' + redesign 'quit' so thread exits cleanly
-- api.c bug - remove extra ']'s in notify command
-- Increase pool watch interval to 30 seconds.
-- Reap curls that are unused for over a minute. This allows connections to be
-closed, thereby allowing the number of curl handles to always be the minimum
-necessary to not delay networking.
-- Use the ringbuffer of curls from the same pool for submit as well as getwork
-threads. Since the curl handles were already connected to the same pool and are
-immediately available, share submission will not be delayed by getworks.
-- Implement a scaleable networking framework designed to cope with any sized
-network requirements, yet minimise the number of connections being reopened. Do
-this by create a ring buffer linked list of curl handles to be used by getwork,
-recruiting extra handles when none is immediately available.
-- There is no need for the submit and getwork curls to be tied to the pool
-struct.
-- Do not recruit extra connection threads if there have been connection errors
-to the pool in question.
-- We should not retry submitting shares indefinitely or we may end up with a
-huge backlog during network outages, so discard stale shares if we failed to
-submit them and they've become stale in the interim.
-
-
-Version 2.3.6 - April 29, 2012
-
-- Shorten stale share messages slightly.
-- Protect the freeing of current_hash under mutex_lock to prevent racing on it
-when set_curblock is hit concurrently.
-- Change default behaviour to submitting stale, removing the --submit-stale
-option and adding a --no-submit-stale option.
-- Make sure to start the getwork and submit threads when a pool is added on the
-fly. This fixes a crash when a pool is added to running cgminer and then
-switched to.
-- Faster hardware can easily outstrip the speed we can get work and submit
-shares when using only one connection per pool.
-- Test the queued list to see if any get/submits are already queued and if they
-are, start recruiting extra connections by generating new threads.
-- This allows us to reuse network connections at low loads but recuit new open
-connections as they're needed, so that cgminer can scale to hardware of any
-size.
-
-
-Version 2.3.5 - April 28, 2012
-
-- Restarting cgminer leads to a socket that can't be bound for 60 seconds, so
-increase the interval that API binding waits to 30 seconds to minimise the
-number of times it will retry, spamming the logs.
-- Give a longpoll message for any longpoll that detects a block change, primary
-or backup, and also display which pool it was.
-- Decrease utility display to one decimal place.
-- Small cosmetic output alignment.
-- Add pool number to stale share message.
-- Add space to log output now that there is more screen real estate available.
-- Indentation clean up.
-- Merge branch 'master' of github.com:ckolivas/cgminer
-- Remove thread id display from rejected shares as well.
-- Merge pull request #185 from Diapolo/diakgcn
-- add goffset support for diakgcn with -v 1 and update kernel version
-- Set have_longpoll to true when there is at least one pool with longpoll.
-- Don't display the thread ID since it adds no useful information over the
-device number.
-- Don't display the first 8 bytes of a share since they will always be zero at
->= 1 difficulty.
-- work->longpoll is reset across test_work_current so we need to recheck what
-pool it belongs to.
-- Use longpolls from backup pools with failover-only enabled just to check for
-block changes, but don't use them as work.
-- Start longpoll only after we have tried to extract the longpoll URL.
-- Check for submitold flag on resubmit of shares, and give different message for
-stale shares on retry.
-- Check for submitold before submitstale.
-- Don't force fresh curl connections on anything but longpoll threads.
-- Create one longpoll thread per pool, using backup pools for those pools that
-don't have longpoll.
-- Use the work created from the longpoll return only if we don't have
-failover-enabled, and only flag the work as a longpoll if it is the current
-pool.
-- This will work around the problem of trying to restart the single longpoll
-thread on pool changes that was leading to race conditions.
-- It will also have less work restarts from the multiple longpolls received from
-different pools.
-- Remove the ability to disable longpoll. It is not a useful feature and will
-conflict with planned changes to longpoll code.
-- Remove the invalid entries from the example configuration file.
-- Add support for latest ATI SDK on windows.
-- Export missing function from libztex.
-- miner.php change socktimeoutsec = 10 (it only waits once)
-- Bugfix: Make initial_args a const char** to satisfy exec argument type warning
-(on Windows only)
-- miner.php add a timeout so you don't sit and wait ... forever
-- Create discrete persistent submit and get work threads per pool, thus allowing
-all submitworks belonging to the same pool to reuse the same curl handle, and
-all getworks to reuse their own handle.
-- Use separate handles for submission to not make getwork potentially delay
-share submission which is time critical.
-- This will allow much more reusing of persistent connections instead of opening
-new ones which can flood routers.
-- This mandated a rework of the extra longpoll support (for when pools are
-switched) and this is managed by restarting longpoll cleanly and waiting for a
-thread join.
-- miner.php only show the current date header once
-- miner.php also add current time like single rig page
-- miner.php display rig 'when' table at top of the multi-rig summary page
-- README - add some Ztex details
-- api.c include zTex in the FPGA support list
-- api.c ensure 'devs' shows PGA's when only PGA code is compiled
-- cgminer.c sharelog code consistency and compile warning fix
-- README correct API version number
-- README spelling error
-- api.c combine all pairs of sprintfs()
-- api.c uncomment and use BLANK (and COMMA)
-- Code style cleanup
-- Annotating frequency changes with the changed from value
-- README clarification of 'notify' command
-- README update for API RPC 'devdetails'
-- api.c 'devdetails' list static details of devices
-- Using less heap space as my TP-Link seems to not handle this much
-
-
-Version 2.3.4 - April 25, 2012
-
-- Extensively document the cause of GPU device issues and the use of --gpu-map.
-- Support for share logging
-- Detect poorly performing combination of SDK and phatk kernel and add verbose
-warning at startup.
-- Icarus update to new add_cgpu()
-- Icarus driver working with Linux and Windows
-- api.c fix unused variable compile warning
-- Display all OpenCL devices when -n is called as well to allow debugging of
-differential mapping of OpenCL to ADL.
-- Add a --gpu-map option which will allow arbitrarily mapping ADL devices to
-OpenCL devices for instances where association by enumeration alone fails.
-- Increase upper limit on number of extra items to queue as some FPGA code can't
-yet reliably keep many devices busy.
-- Display configuration file information when -c option is passed and only when
-file exists on loading default config file.
-- Display configuration file loaded, if any, and debug output if configuration
-file parsing failed.
-- Add missing ztex header to Makefile for distribution.
-- Document long-form COM port device names on Windows, required to specify
-serial ports above 9
-- Include ztex bitstreams firmware in distribution and install if configured in.
-- Style police on driver-ztex.c
-- work_restart should only be changed by cgminer.c now
-- Shut down the api cleanly when the api thread is cancelled. This should allow
-the api socket to be closed successfully to next be reopened with app_restart.
-- Make a union for cgpu device handles, and rename "device" to "device_ztex"
-since it's Ztex-specific
-- Initialise name variable.
-- Remove unnecessary check for variable that always has memory allocated.
-- Bugfix: Missing "break" no-op in default case
-- Make the status window and log window as large as can fit on startup,
-rechecking to see if it can be enlarged after the fact. This allows any number
-of devices to be displayed provided the window is made long enough without
-corrupting the output.
-- Style police on libztex.c.
-- API add removepool like the screen interface
-- api.c escape required characters in return strings + pools returns the
-username
-- Set lp_path to NULL after free for consistency.
-- Removing dmalloc import left behind by mistake
-- Fixing leak in resp_hdr_cb
-- miner.php warning highlight GPU stats if they are zero (e.g. ADL not enabled)
-- miner.php highlight any device that isn't 'Enabled'
-- miner.php highlight any Status that isn't 'Alive'
-- miner.php optionally support multiple rigs
-- Initial Ztex support 1.15x board.
-
-
-Version 2.3.3 - April 15, 2012
-
-- Don't even display that cpumining is disabled on ./configure to discourage
-people from enabling it.
-- Do a complete cgminer restart if the ATI Display Library fails, as it does on
-windows after running for some time, when fanspeed reporting fails.
-- Cache the initial arguments passed to cgminer and implement an attempted
-restart option from the settings menu.
-- Disable per-device status lines when there are more than 8 devices since
-screen output will be corrupted, enumerating them to the log output instead at
-startup.
-- Reuse Vals[] array more than W[] till they're re-initialised on the second
-sha256 cycle in poclbm kernel.
-- Minor variable alignment in poclbm kernel.
-- Make sure to disable devices with any status not being DEV_ENABLED to ensure
-that thermal cutoff code works as it was setting the status to DEV_RECOVER.
-- Re-initialising ADL simply made the driver fail since it is corruption over
-time within the windows driver that's responsible. Revert "Attempt to
-re-initialise ADL should a device that previously reported fanspeed stops
-reporting it."
-- Microoptimise poclbm kernel by ordering Val variables according to usage
-frequency.
-
-
-Version 2.3.2 - March 31, 2012
-
-- Damping small changes in hashrate so dramatically has the tendency to always
-make the hashrate underread so go back to gentle damping instead.
-- Revert the crossover of variables from Vals to W in poclbm kernel now that
-Vals are the first declared variables so they're used more frequently.
-- Vals variables appearing first in the array in poclbm is faster.
-- Change the preferred vector width to 1 for Tahiti only, not all poclbm
-kernels.
-- Use a time constant 0.63 for when large changes in hashrate are detected to
-damp change in case the large change is an aliasing artefact instead of a real
-chang
-- Only increment stale counter if the detected stales are discarded.
-- Attempt to re-initialise ADL should a device that previously reported fanspeed
-stops reporting it.
-- Move the ADL setup and clearing to separate functions and provide a reinit_adl
-function to be used when adl fails while running.
-- Use slightly more damping on the decay time function in the never-ending quest
-to smooth off the hashmeter.
-- Set the starting fanspeed to a safe and fairly neutral 50% when autofan is
-enabled.
-- Provide locking around updates of cgpu hashrates as well to prevent multiple
-threads accessing data fields on the same device.
-- Display the beginning of the new block in verbose mode in the logs.
-- Reinstate old diablo kernel variable ordering from 120222, adding only goffset
-and vector size hint. The massive variable ordering change only helped one SDK
-on
-- Change the version number on the correct kernels.
-- api.c devicecode/osinfo incorrectly swapped for json
-- Add extensive instructions on how to make a native windows build.
-- Update version numbers of poclbm and diablo kernels as their APIs have also
-changed.
-- Use global offset parameter to diablo and poclbm kernel ONLY for 1 vector
-kernels.
-- Use poclbm preferentially on Tahiti now regardless of SDK.
-- Remove unused constant passed to poclbm.
-- Clean up use of macros in poclbm and use bitselect everywhere possible.
-- Add vector type hint to diablo kernel.
-- Add worksize and vector attribute hints to the poclbm kernel.
-- Spaces for non-aligned variables in poclbm.
-- More tidying of poclbm.
-- Swap Vals and W variables where they can overlap in poclbm.
-- More tidying of poclbm.
-- Tidy up first half of poclbm.
-- Clean up use of any() by diablo and poclbm kernels.
-- Minor variable symmetry changes in poclbm.
-- Put additions on separate lines for consistency in poclbm.
-- Consolidate last use of W11 into Vals4 in poclbm.
-- Change email due to SPAM
-- api.c miner.php add a '*' to the front of all notify counters - simplifies
-future support of new counters
-- miner.php add display 'notify' command
-- Small change to help arch's without processor affinity
-- Fix bitforce compile error
-- api.c notify should report disabled devices also - of course
-- API returns the simple device history with the 'notify' command
-- code changes for supporting a simple device history
-- api.c Report an OS string in config to help with device issues
-- api.c fix Log Interval - integer in JSON
-- api.c config 'Device Code' to show list of compiled devices + README
-- api.c increase buffer size close to current code allowable limit
-- removed 8-component vector support from kernel, as this is not supported in
-CGMINER anyway
-- forgot to update kernel modification date, fixed ;)
-- reordered an addition in the kernel, which results in less instructions used
-in the GPU ISA code for GCN
-- miner.php: option for readonly or check privileged access
-- Ignore reduntant-with-build options --disable-gpu, --no-adl, and --no-restart
-- miner.php: ereg_replace is DEPRECATED so use preg_replace instead
-- Make curses TUI support optional at compile-time.
-- Bugfix: AC_ARG_WITH provides withval instead of enableval
-- miner.php split devs output for different devices
-- api.c: correct error messages
-- icarus.c modify (regular) timeout warning to only be debug
-- icarus.c set the windows TODO timeout
-- Allow specifying a specific driver for --scan-serial
-- optimized nonce-check and output code for -v 2 and -v 4
-- Bugfix: Check for libudev header (not just library) in configure, and document
-optional dependency
-- Add API support for Icarus and Bitforce
-- Next API version is 1.4 (1.3 is current)
-- README/api.c add "When" the request was processed to STATUS
-- Bugfix: ZLX to read BitFORCE temp, not ZKX -.-
-- Use libudev to autodetect BitFORCE GPUs, if available
-- Use the return value of fan_autotune to set fan_optimal instead of passing it
-as a pointer.
-- Pass the lasttemp from the device we're using to adjust fanspeed in twin
-devices.
-- fix the name to 3 chars, fix the multi-icarus support
-- Bugfix: "-S auto" is the default if no -S is specified, and there is no such
-delay in using it
-- README add information missing from --scan-serial
-- Update README RPC API Version comment
-- Bugfix: Allow enabling CPU even without OpenCL support
-- Change failed-to-mine number of requested shares messge to avoid segfault on
-recursive calling of quit().
-- Get rid of extra char which is just truncated in poclbm kernel.
-- only small code formating changes
-- removed vec_step() as this could lead to errors on older SDKs
-- unified code for generating nonce in kernel and moved addition of base to the
-end -> faster
-
-Version 2.3.1 - February 24, 2012
-
-- Revert input and output code on diakgcn and phatk kernels to old style which
-worked better for older hardware and SDKs.
-- Add a vector*worksize parameter passed to those kernels to avoid one op.
-- Increase the speed of hashrate adaptation.
-- Only send out extra longpoll requests if we want longpolls.
-- API implement addpool command
-- API return the untouched Total MH also (API now version 1.3)
-- Add enable/disablepool to miner.php example and reduce font size 1pt
-
-
-Version 2.3.0 - February 23, 2012
-
-- Consider extra longpoll work items as staged_extra so as to make sure we queue
-more work if queueing regular work items as longpolls.
-- Use diablo kernel on all future SDKs for Tahiti and set preferred vector width
-to 1 on poclbm kernel only.
-- Explicitly type the constants in diakgcn kernel as uint, to be in line with
-poclbm kernel.
-- Reset all hash counters at the same time as resetting start times to get
-accurate hashrates on exiting which is mandatory for benchmarking.
-- Report thread out before it starts to avoid being flagged as sick when waiting
-for the first work item.
-- Don't disable and re-enable devices as they may recover and in the meantime
-have their status set to OFF.
-- API new commands enablepool and disablepool (version already incremented)
-- Tolerate new-format temperature readings for bitforce
-- Modify cgminer.c pool control to allow API to call it
-- Bugfix: Fix BitFORCE driver memory leak in debug logging
-- Extra byte was being unused in poclbm leading to failure on some platforms.
-- Explicitly type the constants in poclbm kernel as uint.
-- Don't save 'include' when saving the configuration
-- Allow configuration file to include another recursively
-- Use the SDK and hardware information to choose good performing default
-kernels.
-- Move phatk kernel to offset vector based nonce bases as well.
-- Add a --benchmark feature which works on a fake item indefinitely to compare
-device performance without any server or networking influence.
-- Allow writing of multiple worksizes to the configuration file.
-- Allow writing of multiple vector sizes to the configuration file.
-- Allow writing of multiple kernels to the configuration file.
-- Allow multiple different kernels to be chosen per device.
-- Allow the worksize to be set per-device.
-- Allow different vectors to be set per device.
-- If we're well below the target temperature, increase gpu engine speed back to
-maximum in case we have gotten lost between profiles during an idle period.
-- We should be setting the value of fan_optimal, not its address.
-- As all kernels will be new versions it's an opportunity to change the .bin
-format and make it simpler. Specifying bitalign is redundant and long can be l.
-- Use any() in kernel output code.
-- Put the nonce for each vector offset in advance, avoiding one extra addition
-in the kernel.
-- Reset times after all mining threads are started to make estimating hashrates
-easier at startup.
-- Bugfix: allow no-exec (NX) stack
-- Fix minor warning.
-- fix the bitforce.c code style follow 1TBS
-- fix icarus.c compile warning
-- small changes to speedup no vec for AMD 898.1 OCL runtime
-- Update licensing to GPL V3.
-- Reset the longpoll flag after it's been used once to prevent it restarting
-work again.
-- Begin import of DiabloMiner kernel.
-- Modify API debug messages to say API instead of DBG
-- When API shuts down cgminer don't kill itself
-- Don't make rolled work from the longpoll be seen as other longpoll work items.
-- API add 'privileged' command so can verify access level
-- Set the lp_sent variable under lock since there will almost always be a race
-on setting this variable, potentially leading to multiple LPs being sent out.
-- API restrict access to all non display commands by default
-- Update API version to 1.2 for new 'Log Interval'
-- API add --log Interval to 'config' reply
-- --api-allow special case 0/0 means all
-
-
-Version 2.2.7 - February 20, 2012
-
-- Send out extra longpolls when we have switched pools and the longpoll thread
-is still bound to the old one. This is particularly useful with p2pool where
-longpolls do not correlate with main bitcoin block change and would have led to
-high reject rates on failover.
-- Store whether a work item is the result of a longpoll or not in struct work
-and use it to help determine block changes directly from the work longpoll bool.
-- Keep track of when a longpoll has been sent for a pool and if the current pool
-is requesting work but has not sent a longpoll request, convert one of the work
-items to a longpoll.
-- Store the longpoll url in the pool struct and update it from the pool_active
-test in case it changes. This is to allow further changes to longpoll management
-on switching pools.
-- Re-check for a longpoll supporting pool every 30 seconds if none is found
-initially.
-- Report threads as busy waiting on getwork on startup to avoid them being
-flagged sick on startup during slow networking.
-- Allow devices that are disabled due to overheating to be flagged as recovering
-instead of disabling them and re-enable them if they're below ideal temperatures
-- Tahiti prefers worksize 64 with poclbm.
-- No need to expressly retain the opencl program now that the zero binary issue
-is fixed. This actually fixes cgminer to work with the latest SDK included with
-the ATI catalyst driver 12.2.
-- Show error code on any opencl failure status.
-- Add detection for version 898.1 SDK as well but only give SDK 2.6 warning once
-on startup instead of with each device initialisation.
-- Always use a fresh connection for longpoll as prolonged persistent connections
-can fail for many reasons.
-- Keep track of intended engine clock speed and only adjust up if it's higher
-than the last intended speed. This avoids setting the clock speed to one
-relative to a lower profile one by mistake.
-- Use gpu-memdiff on startup if an engine clockspeed is set and a memdiff value
-is set.
-- Revert "Adjust engine speed up according to performance level engine setting,
-not the current engine speed." - ineffectual.
-- Freeze the queues on all threads that are sent the pause message to prevent
-them trying to start up again with saved pings in their queues.
-- Updates to diakgcn kernel/
-- Consolidate all screen updates to the watchdog thread and touch both windows
-before refresh.
-- Curses will be disabled in clean_up so don't do it early in kill_work, and
-disable_adl so that GPU settings may be restored to normal in case shutting down
-curses leads to instability on windows.
-- Stop the mining threads before trying to kill them.
-- Plain refresh() does not give reliably screen updates so get rid of all uses
-of it.
-- First release with working diakgcn kernel.
-
-Version 2.2.6 - February 16, 2012
-
-- Provide warning on each startup about sdk 2.6
-- Fix unused warnings on win32.
-- bitforce: Simplify BFopen WIN32 ifdef/else
-- Fix initialization warning with jansson 1.3
-- bitforce: Cleanup extraneous TODO that isn't needed
-- Move tcsetattr (and new tcflush) into *nix BFopen to simplify things a bit
-- Add message explaining 2nd thread disabling for dynamic mode and how to tune
-it.
-- Move logwindow down once number of devices is known.
-- Automatically choose phatk kernel for bitalign non-gcn ATI cards, and then
-only select poclbm if SDK2.6 is detected.
-- Allow the refresh interval to be adjusted in dynamic intensity with a
---gpu-dyninterval parameter.
-- Make curses display visible right from the beginning and fix the window sizes
-so the initial messages don't get lost once the status window is drawn.
-- The amount of work scanned can fluctuate when intensity changes and since we
-do this one cycle behind, we increment the work more than enough to prevent
-repeati
-- bitforce: Set a 30 second timeout for serial port on Windows, since the
-default is undefined
-- Use PreVal4addT1 instead of PreVal4 in poclbm kernel.
-- Import PreVal4 and PreVal0 into poclbm kernel.
-- Import more prepared constants into poclbm kernel.
-- Keep variables in one array but use Vals[] name for consistency with other
-kernel designs.
-- Replace constants that are mandatorily added in poclbm kernel with one value.
-- Remove addition of final constant before testing for result in poclbm kernel.
-- Hand optimise variable addition order.
-- Hand optimise first variable declaration order in poclbm kernel.
-- Radical reordering machine based first pass to change variables as late as
-possible, bringing their usage close together.
-- fix strcpy NULL pointer if env HOME unset.
-- bitforce: Disable automatic scanning when at least one device is specified
-manually
-- Unroll all poclbm additions to enable further optimisations.
-
-
-Version 2.2.5 - February 13, 2012
-
-- Make output buffer write only as per Diapolo's suggestion.
-- Constify nonce in poclbm.
-- Use local and group id on poclbm kernel as well.
-- Microoptimise phatk kernel on return code.
-- Adjust engine speed up according to performance level engine setting, not the
-current engine speed.
-- Try to load a binary if we've defaulted to the poclbm kernel on SDK2.6
-- Use the poclbm kernel on SDK2.6 with bitalign devices only if there is no
-binary available.
-- Further generic microoptimisations to poclbm kernel.
-- The longstanding generation of a zero sized binary appears to be due to the
-OpenCL library putting the binary in a RANDOM SLOT amongst 4 possible binary
-locations. Iterate over each of them after building from source till the real
-binary is found and use that.
-- Fix harmless warnings with -Wsign-compare to allow cgminer to build with -W.
-- Fix missing field initialisers warnings.
-- Put win32 equivalents of nanosleep and sleep into compat.h fixing sleep() for
-adl.c.
-- Restore compatibility with Jansson 1.3 and 2.0 (api.c required 2.1)
-- Modularized logging, support for priority based logging
-- Move CPU chipset specific optimization into device-cpu
-
-
-Version 2.2.4 - February 11, 2012
-
-- Fix double definition of A0 B0 to zeroA zeroB.
-- Retain cl program after successfully loading a binary image. May decrease
-failures to build kernels at startup.
-- Variable unused after this so remove setting it.
-- BFI INT patching is not necessarily true on binary loading of files and not
-true on ATI SDK2.6+. Report bitalign instead.
-- Various string fixes for reject reason.
-- Generalize --temp-cutoff and implement support for reading temperature from
-BitFORCE FPGAs
-- Change message from recovered to alive since it is used on startup as well as
-when a pool has recovered.
-- Start mining as soon as any pool is found active and rely on the watchpool
-thread to bring up other pools.
-- Delayed responses from testing pools that are down can hold up the watchdog
-thread from getting to its device testing code, leading to false detection of
-the GPU not checking in, and can substantially delay auto gpu/auto fan
-management leading to overheating. Move pool watching to its own thread.
-- Bugfix: BitFORCE index needs to be static to count correctly
-- Space out retrieval of extra work according to the number of mining threads.
-- Make shutdown more robust. Enable the input thread only after the other
-threads exist. Don't kill off the workio thread and use it to exit main() only
-if there is an unexpected problem. Use kill_work() for all anticipated shutdowns
-where possible. Remove unused thread entry.
-- Change poclbm version number.
-- One array is faster than 2 separate arrays so change to that in poclbm kernel.
-- Microoptimisations to poclbm kernel which increase throughput slightly.
-- Import diablominer kernel. Currently disabled as not working.
-- Import diapolo kernel. Currently disabled as not working.
-- Conflicting entries of cl_kernel may have been causing problems, and
-automatically chosen kernel type was not being passed on. Rename the enum to
-cl_kernels and store the chosen kernel in each clState.
-- Set cl_amd_media_ops with the BITALIGN flag and allow non-bitselect devices to
-build.
-- ALlow much longer filenames for kernels to load properly.
-- Allow different kernels to be used by different devices and fix the logic fail
-of overcorrecting on last commit with !strstr.
-- Fix kernel selection process and build error.
-- queue_phatk_kernel now uses CL_SET_VARG() for base-nonce(s), too
-- added OpenCL >= 1.1 detection code, in preparation of OpenCL 1.1 global offset
-parameter support
-- Use K array explicitly to make it clear what is being added.
-- Work items have a tendency to expire at exactly the same time and we don't
-queue extra items when there are plenty in the queue, regardless of age. Allow
-extra work items to be queued if adequate time has passed since we last
-requested work even if over the limit.
-- Discard work when failover-only is enabled and the work has come from a
-different pool.
-- Missing include to build on newer mingw32.
-- Move from the thread safe localtime_r to regular localtime which is the only
-one supported on newer pthread libraries on mingw32 to make it compile with the
-newer ming. Thread safety is of no importance where localtime is used in this
-code.
-- Define in_addr_t in windows if required
-- sys/wait.h not required in windows
-- Allow API to restrict access by IP address
-- Add pool switching to example miner.php
-- Display X-Reject-Reason, when provided
-- Remove the test for whether the device is on the highest profil level before
-raising the GPU speed as it is ineffectual and may prevent raising the GPU
-speed.
-- Remove unnecessary check for opt_debug one every invocation of applog at
-LOG_DEBUG level and place the check in applog().
-
-
-Version 2.2.3 - February 6, 2012
-
-- Revert "Rewrite the convoluted get_work() function to be much simpler and roll
-work as much as possible with each new work item." This seems to cause a race on
-work in free_work(). Presumably other threads are still accessing the structure.
-
-
-Version 2.2.2 - February 6, 2012
-
-- Provide support for the submitold extension on a per-pool basis based on the
-value being detected in a longpoll.
-- Don't send a ping to a dynamic device if it's not enabled as that will just
-enable it for one pass and then disable it again.
-- Rewrite the convoluted get_work() function to be much simpler and roll work as
-much as possible with each new work item.
-- Roll as much work as possible from the work returned from a longpoll.
-- Rolling work on each loop through the mining thread serves no purpose.
-- Allow to stage more than necessary work items if we're just rolling work.
-- Replace divide_work with reuse_work function used twice.
-- Give rolled work a new ID to make sure there is no confusion in the hashtable
-lookups.
-- Remove now-defunct hash_div variables.
-- Remove unused get_dondata function.
-- Silence ADL warnings.
-- Silence unused parameter warnings.
-- Stagger the restart of every next thread per device to keep devices busy ahead
-of accessory threads per device.
-- Deprecate the --donation feature. Needlessly complex, questionable usefulness,
-depends on author's server and a central pool of some kind, and was not heavily
-adopted.
-- It's devices that report back now, not threads, update message.
-- Continue auto-management of fan and engine speeds even if a device is disabled
-for safety reasons.
-- No need to check we're highest performance level when throttling GPU engine
-speed.
-- Abstract out tests for whether work has come from a block that has been seen
-before and whether a string is from a previously seen block.
-- Probe but don't set the timeout to 15 seconds as some networks take a long
-time to timeout.
-- Remove most compiler warnings from api.c
-- Add last share's pool info in cgpu_info
-- Allow the OpenCL platform ID to be chosen with --gpu-platform.
-- Iterate over all platforms displaying their information and number of devices
-when --ndevs is called.
-- Deprecate main.c
-- Some networks can take a long time to resolve so go back to 60 second timeouts
-instead of 15.
-- Only enable curses on failure if curses is desired.
-- Fix warnings in bitforce.c
-- Bugfix: Need to open BitForce tty for read-write
-- Fix various build issues.
-- Modularize code: main.c -> device-cpu + device-gpu
-- Fix phatk kernel not working on non-bitalign capable devices (Nvidia, older
-ATI).
-- Update poclbm kernel for better performance on GCN and new SDKs with bitalign
-support when not BFI INT patching. Update phatk kernel to work properly for non
-BFI INT patched kernels, providing support for phatk to run on GCN and non-ATI
-cards.
-- Return last accepted share pool/time for devices
-- Display accepted share pool/time for CPUs
-- Bug intensity always shows GPU 0
-- Update example web miner.php to use new API commands
-
-
-Version 2.2.1 - January 30, 2012
-
-NOTE - The GPU Device reordering in 2.2.0 by default was considered a bad idea
-so the original GPU ordering is used by default again unless reordering is
-explicitly requested.
-
-- Fix bitforce failing to build into cgminer.
-- Add missing options to write config function.
-- Add a --gpu-reorder option to only reorder devices according to PCI Bus ID
-when requested.
-- Fix for midstate support being broken on pools that supported no-midstate
-work by ensuring numbers are 32 bits in sha2.c
-- Set virtual GPUs to work when ADL is disabled or all mining will occur on GPU
-0.
-- Add information about paused threads in the menu status.
-- Disable all but the first thread on GPUs in dynamic mode for better
-interactivity.
-- Set the latest network access time on share submission for --net-delay even if
-we're not delaying that submission for further network access.
-- Clear adl on exiting after probing values since it may attempt to overclock.
-- As share submission is usually staggered, and delays can be costly, submit
-shares without delay even when --net-delay is enabled.
-- Display GPU number and device name when ADL is successfully enabled on it.
-- Display GPU ordering remapping in verbose mode.
-- Don't fail in the case the number of ADL and OpenCL devices do not match, and
-do not attempt to reorder devices unless they match. Instead give a warning
-about
-- Display error codes should ADL not return ADL_OK in the more critical function
-calls.
-- Fix unused warning.
-- Fix compile warnings in api.c
-- Add extensive ADL based device info in debug mode.
-- Make --ndevs display verbose opencl information as well to make debugging
-version information easier.
-- Display information about the opencl platform with verbose enabled.
-- Explicitly check for nvidia in opencl platform strings as well.
-
-
-Version 2.2.0 - January 29, 2012
-
-NOTE: GPU Device order will change with this release with ATI GPUs as cgminer
-now can enumerate them according to their Bus ID which means the values should
-now correlate with their physical position on the motherboard.
-
-- Default to poclbm kernel on Tahiti (7970) since phatk does not work, even
-though performance is sub-standard so that at least it will mine successfully by
-defau
-- Retain cl program after every possible place we might build the program.
-- Update ADL SDK URL.
-- Fix potential overflow.
-- Map GPU devices to virtual devices in their true physical order based on
-BusNumber.
-- Change the warning that comes with failure to init cl on a device to be more
-generic and accurate.
-- Advertise longpoll support in X-Mining-Extensions
-- Detect dual GPU cards by iterating through all GPUs, finding ones without
-fanspeed and matching twins with fanspeed one bus ID apart.
-- Do not attempt to build the program that becomes the kernel twice. This could
-have been leading to failures on initialising cl.
-- Some opencl compilers have issues with no spaces after -D in the compiler
-options.
-- Allow intensity up to 14.
-- Use calloced stack memory for CompilerOptions to ensure sprintf writes to the
-beginning of the char.
-- Whitelist 79x0 cards to prefer no vectors as they perform better without.
-- Adjust fan speed gently while in the optimal range when temperature is
-drifting to minimise overshoot in either direction.
-- Detect dual GPU cards via the indirect information of - 1st card has a fan
-controller. 2nd card does not have a fan controller, cards share the same device
-name
-- Instead of using the BFI_INT patching hack on any device reporting
-cl_amd_media_ops, create a whitelist of devices that need it. This should enable
-GCN architec
-- Fixed API compiling issue on OS X
-- Add more explanation of JSON format and the 'save' command
-- Return an error if using ADL API commands when it's not available
-- Read off lpThermalControllerInfo from each ADL device.
-- Add ADL_Overdrive5_ThermalDevices_Enum interface.
-- Add API commands: config, switchpool, gpu settings, save
-- Implement socks4 proxy support.
-- Fix send() for JSON strings
-- Introduce a --net-delay option which guarantees at least 250ms between any
-networking requests to not overload slow routers.
-- Generalise locking init code.
-- Allow invalid values to be in the configuration file, just skipping over them
-provided the rest of the file is valid JSON. This will allow older configurat
-- Allow CPU mining explicitly enable only if other mining support is built in.
-- BitForce FPGA support
-- Configure out building and support of all CPU mining code unless
---enable-cpumining is enabled.
-- Allow parsed values to be zero which will allow 0 values in the config file to
-work.
-- Advertise that we can make our own midstate, so the pool can skip generating
-it for us
-- Refactor the CPU scanhash_* functions to use a common API. Fixes bugs.
-- Don't consider a pool lagging if a request has only just been filed. This
-should decrease the false positives for "pool not providing work fast enough".
-- Invalidating work after longpoll made hash_pop return no work giving a false
-positive for dead pool. Rework hash_pop to retry while finds no staged work u
-- Remove TCP_NODELAY from curl options as many small packets may be contributing
-to network overload, when --net-delay is enabled.
-- Refactor miner_thread to be common code for any kind of device
-- Simplify submit_nonce loop and avoid potentially missing FOUND - 1 entry.
-Reported by Luke-Jr.
-- Micro-optimisation in sha256_sse2 code courtesy of Guido Ascioti
-guido.ascioti@gmail.com
-- Refactor to abstract device-specific code
-
-
-Version 2.1.2 - January 6, 2012
-
-- If api-description is specified, save it when writing the config file
-- Adjust utility width to be constant maximum as well.
-- Add percent signs to reject ratio outputs
-- Should the donation pool fail, don't make the fallover pool behave as though
-the primary pool is lagging.
-- Use an alternative pool should the donation getwork fail.
-
-
-Version 2.1.1 - January 1, 2012
-
-- Include API examples in distribution tarball.
-- Don't attempt to pthread_join when cancelling threads as they're already
-detached and doing so can lead to a segfault.
-- Give more generic message if slow pool at startup is the donation pool.
-- Continue to attempt restarting GPU threads if they're flagged dead at 1 min.
-intervals.
-- Don't attempt to restart sick flagged GPUs while they're still registering
-activity.
-- Make curl use fresh connections whenever there is any communication issue
-in case there are dead persistent connections preventing further comms from
-working.
-- Display pool in summary if only 1 pool.
-- Adjust column width of A/R/HW to be the maximum of any device and align them.
-
-
-Version 2.1.0 - December 27, 2011
-
-- Major infrastructure upgrade with RPC interface for controlling via sockets
-encoded with/without JSON courtesy of Andrew Smith. Added documentation for
-use of the API and sample code to use with it.
-- Updated linux-usb-cgminer document.
-- Rewrite of longpoll mechanism to choose the current pool wherever possible to
-use for the longpoll, or any pool that supports longpoll if the current one
-does not.
-- Display information about longpoll when the chosen server has changed.
-- Fix the bug where longpoll generated work may have been sent back to the
-wrong pool, causing rejects.
-- Fix a few race conditions on closing cgminer which caused some of the crashes
-on exit.
-- Only adjust gpu engine speed in autotune mode if the gpu is currently at the
-performance level of that being adjusted.
-- Various fixes for parsing/writing of configuration files.
-- Do not add blank lines for threads of unused CPUs.
-- Show which pool is unresponsive on startup.
-- Only show GPU management menu item if GPUs are in use.
-- Align most device columns in the curses display.
-
-
-Version 2.0.8 - November 11, 2011
-
-- Make longpoll do a mandatory flushing of all work even if the block hasn't
-changed, thus supporting longpoll initiated work change of any sort and merged
-mining.
-- Byteswap computed hash in hashtest so it can be correctly checked. This fixes
-the very rare possibility that a block solve on solo mining was missed.
-- Add x86_64 w64 mingw32 target
-- Allow a fixed speed difference between memory and GPU clock speed with
---gpu-memdiff that will change memory speed when GPU speed is changed in
-autotune mode.
-- Don't load the default config if a config file is specified on the command
-line.
-- Don't build VIA on apple since -a auto bombs instead of gracefully ignoring
-VIA failing.
-- Build fix for dlopen/dlclose errors in glibc.
-
-
-Version 2.0.7 - October 17, 2011
-
-- Support work without midstate or hash1, which are deprecated in bitcoind 0.5+
-- Go to kernel build should we fail to clCreateProgramWithBinary instead of
-failing on that device. This should fix the windows problems with devices not
-initialising.
-- Support new configuration file format courtesy of Chris Savery which can write
-the config file from the menu and will load it on startup.
-- Write unix configuration to .cgminer/cgminer.conf by default and prompt to
-overwrite if given a filename from the menu that exists.
-
-
-Version 2.0.6 - October 9, 2011
-
-- Must initialise the donorpool mutex or it fails on windows.
-- Don't make donation work interfere with block change detection allowing
-donation to work regardless of the block chain we're mining on.
-- Expire shares as stale with a separate timeout from the scantime, defaulting
-to 120 seconds.
-- Retry pools after a delay of 15 seconds if none can be contacted on startup
-unless a key is pressed.
-- Don't try to build adl features without having adl.
-- Properly check shares against target difficulty - This will no longer show
-shares when solo mining at all unless they're considered to be a block solve.
-- Add altivec 4 way (cpu mining) support courtesy of Gilles Risch.
-- Try to use SSL if the server supports it.
-- Display the total solved blocks on exit (LOL if you're lucky).
-- Use ADL activity report to tell us if a sick GPU is still busy suggesting it
-is hard hung and do not attempt to restart it.
-
-
-Version 2.0.5 - September 27, 2011
-
-- Intensity can now be set to dynamic or static values per-device.
-- New donation feature --donation sends a proportion of shares to author's
-account of choice, but is disabled by default!
-- The hash being displayed and block detection has been fixed.
-- Devices not being mined on will not attempt to be ADL managed.
-- Intensity is now displayed per GPU device.
-- Make longpoll attempt to restart as often as opt_retries specifies.
-- We weren't rolling work as often as we could.
-- Correct some memory management issues.
-- Build fixes.
-- Don't mess with GPUs if we don't have them.
-
-
-Version 2.0.4 - September 23, 2011
-
-- Confused Longpoll messages should be finally fixed with cgminer knowing for
-sure who found the new block and possibly avoiding a rare crash.
-- Display now shows the actual hash and will say BLOCK! if a block is deemed
-solved.
-- Extra spaces, which would double space lines on small terminals, have been
-removed.
-- Fan speed change is now damped if it is already heading in the correct
-direction to minimise overshoot.
-- Building without opencl libraries is fixed.
-- GPUs are autoselected if there is only one when in the GPU management menu.
-- GPU menu is refreshed instead of returning to status after a GPU change.
-
-
-Version 2.0.3 - September 17, 2011
-
-- Various modes of failure to set fanspeeds and adl values have been addressed
-and auto-fan should work now on most hardware, and possibly other values
-which previously would not have worked.
-- Fixed a crash that can occur on switching pools due to longpoll thread races.
-- Use ATISTREAMSDKROOT if available at build time.
-- Fanspeed management is returned to the driver default on exit instead of
-whatever it was when cgminer was started.
-- Logging of events deemed WARNING or ERR now will display even during
-periods where menu input is being awaited on.
-
-
-Version 2.0.2 - September 11, 2011
-
-- Exit cleanly if we abort before various threads are set up or if they no
-longer exist.
-- Fix a rare crash in HASH_DEL due to using different mutexes to protect the
-data.
-- Flag devices that have never started and don't allow enabling of devices
-without restarting them.
-- Only force the adapter speed to high if we've flagged this device as being
-managed.
-- Flag any devices with autofan or autogpu as being managed.
-- Use a re-entrant value to store what fanspeed we're trying to set in case the
-card doesn't support small changes.     Force it to a multiple of 10% if it
-fails on trying to speed up the fan.
-- Do not bother resetting values to old ones if changes to GPU parameters report
-failure, instead returning a failure code only if the return value from get()
-differs.
-- Remove redundant check.
-- Only display supported values from fanspeed on change settings.
-- Missing bracket from output.
-- Display fan percentage on devices that only support reporting percent and not
-RPM.
-- Properly substitute DLOPEN flags to build with ADL support when -ldl is needed
-and not when opencl is not found.
-
-
-Version 2.0.1 - September 9, 2011
-
-- Fix building on 32bit glibc with dlopen with -lpthread and -ldl
-- ByteReverse is not used and the bswap opcode breaks big endian builds. Remove
-it.
-- Ignore whether the display is active or not since only display enabled devices
-work this way, and we skip over repeat entries anwyay.
-- Only reset values on exiting if we've ever modified them.
-- Flag adl as active if any card is successfully activated.
-- Add a thermal cutoff option as well and set it to 95 degrees by default.
-- Change the fan speed by only 5% if it's over the target temperature but less
-than the hysteresis value to minimise overshoot down in temperature.
-- Add a --no-adl option to disable ADL monitoring and GPU settings.
-- Only show longpoll received delayed message at verbose level.
-- Allow temperatures greater than 100 degrees.
-- We should be passing a float for the remainder of the vddc values.
-- Implement accepting a range of engine speeds as well to allow a lower limit to
-be specified on the command line.
-- Allow per-device fan ranges to be set and use them in auto-fan mode.
-- Display which GPU has overheated in warning message.
-- Allow temperature targets to be set on a per-card basis on the command line.
-- Display fan range in autofan status.
-- Setting the hysteresis is unlikely to be useful on the fly and doesn't belong
-in the per-gpu submenu.
-- With many cards, the GPU summaries can be quite long so use a terse output
-line when showing them all.
-- Use a terser device status line to show fan RPM as well when available.
-- Define max gpudevices in one macro.
-- Allow adapterid 0 cards to enumerate as a device as they will be non-AMD
-cards, and enable ADL on any AMD card.
-- Do away with the increasingly confusing and irrelevant total queued and
-efficiency measures per device.
-- Only display values in the log if they're supported and standardise device log
-line printing.
-
-
-Version 2.0.0 - September 6, 2011
-
-Major feature upgrade - GPU monitoring, (over)clocking and fan control for ATI
-GPUs.
-
-New command line switches:
---auto-fan-     Automatically adjust all GPU fan speeds to maintain a target
-temperature
---auto-gpu-     Automatically adjust all GPU engine clock speeds to maintain
-a target temperature
---gpu-engine <arg>  Set the GPU engine (over)clock in Mhz - one value for all or
-separate by commas for per card.
---gpu-fan <arg>     Set the GPU fan percentage - one value for all or separate
-by commas for per card.
---gpu-memclock <arg> Set the GPU memory (over)clock in Mhz - one value for all
-or separate by commas for per card.
---gpu-powertune <arg> Set the GPU powertune percentage - one value for all or
-separate by commas for per card.
---gpu-vddc <arg>    Set the GPU voltage in Volts - one value for all or separate
-by commas for per card.
---temp-hysteresis <arg> Set how much the temperature can fluctuate outside
-limits when automanaging speeds (default: 3)
---temp-overheat <arg> Set the overheat temperature when automatically managing
-fan and GPU speeds (default: 85)
---temp-target <arg> Set the target temperature when automatically managing fan
-and GPU speeds (default: 75)
-
-- Implement ATI ADL support for GPU parameter monitoring now and setting later
-(temp, fan, clocks etc.).
-- Check for the presence of the ADL header files in ADL_SDK.
-- Import adl_functions.h from amd overdrive ctrl.
-- Implement a setup function that tries to detect GPUs that support the ADL and
-link in the parameters into the gpus struct.
-- Put a summary of monitoring information from the GPU menu.
-- Implement changing memory speed and voltage on the fly.
-- Implement fan speed setting.
-- Minor corrections to set fan speed by percentage.
-- Make sure to read off the value in RPM only.
-- Implement auto fanspeed adjustment to maintain a target temperature and
-fanspeed below 85%, with an overheat check that will speed the fan up to 100%.
-- Add an --auto-fan command line option to allow all GPUs to have autofan
-enabled from startup.
-- Add a gpu autotune option which adjusts GPU speed to maintain a target
-temperature within the bounds of the default GPU speed and any overclocking set.
-- Avoid a dereference if the longpoll thread doesn't exist.
-- Clean up by setting performance profiles and fan settings to startup levels on
-exit.
-- Add a small amount of hysteresis before lowering clock speed.
-- Allow target, overheat and hysteresis temperatures to be set from command
-line.
-- Combine all stats collating into one function to avoid repeating function
-calls on each variable.
-- Add gpu statistics to debugging output via the watchdog thread.
-- Implement menus to change temperature limits.
-- Implement setting the GPU engine clock speed of all devices or each device as
-a comma separated value.
-- Implement setting the GPU memory clock speed of all devices or each device as
-a comma separated value.
-- Implement setting the GPU voltage of all devices or each device as a comma
-separated value.
-- Implement setting the GPU fan speed of all devices or each device as a comma
-separated value.
-- Add support for monitoring powertune setting.
-- Implement changing of powertune value from the GPU change settings menu.
-- Get the value of powertune in get_stats.
-- Implement setting the GPU powertune value of all devices or each device as a
-comma separated value.
-- Remove the safety checks in speed setting since confirmation is done first in
-the menu, then show the new current values after a short pause.
-- Force the speed to high on startup and restore it to whatever the setting was
-on exit.
-- Add temperature to standard output where possible and use more compact output.
-- Move and print at the same time in curses to avoid random trampling display
-errors.
-- Update the status window only from the watchdog thread, do not rewrite the top
-status messages and only refresh once all the status window is complete,
-clearing the window each time to avoid corruption.
-- Set a safe starting fan speed if we're automanaging the speeds.
-- Provide locking around all adl calls to prevent races.
-- Lower profile settings cannot be higher than higher profile ones so link any
-drops in settings.
-- Add new needed text files to distribution.
-- Queue requests ignoring the number of staged clones since they get discarded
-very easily leading to false positives for pool not providing work fast enough.
-- Include libgen.h in opt.c to fix win32 compilation warnings.
-- Fix compilation warning on win32.
-- Add the directory name from the arguments cgminer was called from as well to
-allow it running from a relative pathname.
-- Add a --disable-adl option to configure and only enable it if opencl support
-exists.
-- Retry before returning a failure to get upstream work as a failure to avoid
-false positives for pool dead.
-- Retry also if the decoding of work fails.
-- Use the presence of X-Roll-Ntime in the header as a bool for exists unless N
-is found in the response.
-
-
-Version 1.6.2 - September 2, 2011
-
-- Add --failover-only option to not leak work to backup pools when the primary
-pool is lagging.
-- Change recommendation to intensity 9 for dedicated miners.
-- Fix the bouncing short term value by allowing it to change dynamically when
-the latest value is very different from the rolling value, but damp the change
-when it gets close.
-- Use the curses_lock to protect the curses_active variable and test it under
-lock.
-- Go back to requesting work 2/3 of the way through the current scantime with
-CPU mining as reports of mining threads running out of work have occurred with
-only 5 seconds to retrieve work.
-- Add start and stop time scheduling for regular time of day running or once off
-start/stop options.
-- Print summary on quit modes.
-- Put some sanity checks on the times that can be input.
-- Give a verbose message when no active pools are found and pause before
-exiting.
-- Add verbose message when a GPU fails to initialise, and disable the correct
-GPU.
-- Cryptopp asm32 was not correctly updated to the incremental nonce code so the
-hash counter was bogus.
-- Get rid of poorly executed curl check.
-- If curl does not have sockopts, do not try to compile the
-json_rpc_call_sockopt_cb function, making it possible to build against older
-curl libraries.
-- Most people expect /usr/local when an unspecified prefix is used so change to
-that.
-- Rename localgen occasions to getwork fail occasions since localgen is
-unrelated now.
-
-
-Version 1.6.1 - August 29, 2011
-
-- Copy cgminer path, not cat it.
-- Switching between redrawing windows does not fix the crash with old
-libncurses, so redraw both windows, but only when the window size hasn't
-changed.
-- Reinstate minimum 1 extra in queue to make it extremely unlikely to ever have
-0 staged work items and any idle time.
-- Return -1 if no input is detected from the menu to prevent it being
-interpreted as a 0.
-- Make pthread, libcurl and libcurses library checks mandatory or fail.
-- Add a --disable-opencl configure option to make it possible to override
-detection of opencl and build without GPU mining support.
-- Confusion over the variable name for number of devices was passing a bogus
-value which likely was causing the zero sized binary issue.
-- cgminer no longer supports default url user and pass so remove them.
-- Don't show value of intensity since it's dynamic by default.
-- Add options to explicitly enable CPU mining or disable GPU mining.
-- Convert the opt queue into a minimum number of work items to have queued
-instead of an extra number to decrease risk of getting idle devices without
-increasing risk of higher rejects.
-- Statify tv_sort.
-- Check for SSE2 before trying to build 32 bit SSE2 assembly version. Prevents
-build failure when yasm is installed but -msse2 is not specified.
-- Add some defines to configure.ac to enable exporting of values and packaging,
-and clean up output.
-- Give convenient summary at end of ./configure.
-- Display version information and add --version command line option, and make
-sure we flush stdout.
-- Enable curses after the mining threads are set up so that failure messages
-won't be lost in the curses interface.
-- Disable curses after inputting a pool if we requested no curses interface.
-- Add an option to break out after successfully mining a number of accepted
-shares.
-- Exit with a failed return code if we did not reach opt_shares.
-- The cpu mining work data can get modified before we copy it if we submit it
-async, and the sync submission is not truly sync anyway, so just submit it sync.
-
-
-Version 1.6.0 - August 26, 2011
-
-- Make restarting of GPUs optional for systems that hang on any attempt to
-restart them.     Fix DEAD status by comparing it to last live time rather than
-last attempted restart time since that happens every minute.
-- Move staged threads to hashes so we can sort them by time.
-- Create a hash list of all the blocks created and search them to detect when a
-new block has definitely appeared, using that information to detect stale work
-and discard it.
-- Update configure.ac for newer autoconf tools.
-- Use the new hashes directly for counts instead of the fragile counters
-currently in use.
-- Update to latest sse2 code from cpuminer-ng.
-- Allow LP to reset block detect and block detect lp flags to know who really
-came first.
-- Get start times just before mining begins to not have very slow rise in
-average.
-- Add message about needing one server.
-- We can queue all the necessary work without hitting frequent stales now with
-the time and string stale protection active all the time.     This prevents a
-pool being falsely labelled as not providing work fast enough.
-- Include uthash.h in distro.
-- Implement SSE2 32 bit assembly algorithm as well.
-- Fail gracefully if unable to open the opencl files.
-- Make cgminer look in the install directory for the .cl files making make
-install work correctly.
-- Allow a custom kernel path to be entered on the command line.
-- Bump threshhold for lag up to maximum queued but no staged work.
-- Remove fragile source patching for bitalign, vectors et. al and simply pass it
-with the compiler options.
-- Actually check the value returned for the x-roll-ntime extension to make sure
-it isn't saying N.
-- Prevent segfault on exit for when accessory threads don't exist.
-- Disable curl debugging with opt protocol since it spews to stderr.
-
-
-Version 1.5.8 - August 23, 2011
-
-- Minimise how much more work can be given in cpu mining threads each interval.
-- Make the fail-pause progressively longer each time it fails until the network
-recovers.
-- Only display the lagging message if we've requested the work earlier.
-- Clean up the pool switching to not be dependent on whether the work can roll
-or not by setting a lagging flag and then the idle flag.
-- Only use one thread to determine if a GPU is sick or well, and make sure to
-reset the sick restart attempt time.
-- The worksize was unintentionally changed back to 4k by mistake, this caused a
-slowdown.
-
-
-Version 1.5.7 - August 22, 2011
-
-- Fix a crash with --algo auto
-- Test at appropriate target difficulty now.
-- Add per-device statics log output with --per-device-stats
-- Fix breakage that occurs when 1 or 4 vectors are chosen on new phatk.
-- Make rolltime report debug level only now since we check it every work
-item.
-- Add the ability to enable/disable per-device stats on the fly and match
-logging on/off.
-- Explicitly tell the compiler to retain the program to minimise the chance of
-the zero sized binary errors.
-- Add one more instruction to avoid one branch point in the common path in the
-cl return code. Although this adds more ALUs overall and more branch points, the
-common path code has the same number of ALUs and one less jmp, jmps being more
-expensive.
-- Explicitly link in ws2_32 on the windows build and update README file on how
-to compile successfully on windows.
-- Release cl resources should the gpu mining thread abort.
-- Attempt to restart a GPU once every minute while it's sick.
-- Don't kill off the reinit thread if it fails to init a GPU but returns safely.
-- Only declare a GPU dead if there's been no sign of activity from the reinit
-thread for 10 mins.
-- Never automatically disable any pools but just specify them as idle if they're
-unresponsive at startup.
-- Use any longpoll available, and don't disable it if switching to a server that
-doesn't have it. This allows you to mine solo, yet use the longpoll from a pool
-even if the pool is the backup server.
-- Display which longpoll failed and don't free the ram for lp_url since it
-belongs to the pool hdr path.
-- Make the tcp setsockopts unique to linux in the hope it allows freebsd et. al
-to compile.
-
-
-Version 1.5.6 - August 17, 2011
-
-- New phatk and poclbm kernels. Updated phatk to be in sync with latest 2.2
-courtesy of phateus. Custom modified to work best with cgminer.
-- Updated output buffer code to use a smaller buffer with the kernels.
-- Clean up the longpoll management to ensure the right paths go to the right
-pool and display whether we're connected to LP or not in the status line.
-
-
-Version 1.5.5 - August 16, 2011
-
-- Rework entirely the GPU restart code. Strike a balance between code that
-re-initialises the GPU entirely so that soft hangs in the code are properly
-managed, but if a GPU is completely hung, the thread restart code fails
-gracefully, so that it does not take out any other code or devices. This will
-allow cgminer to keep restarting GPUs that can be restarted, but continue
-mining even if one or more GPUs hangs which would normally require a reboot.
-- Add --submit-stale option which submits all shares, regardless of whether they
-would normally be considered stale.
-- Keep options in alphabetical order.
-- Probe for slightly longer for when network conditions are lagging.
-- Only display the CPU algo when we're CPU mining.
-- As we have keepalives now, blaming network flakiness on timeouts appears to
-have been wrong.     Set a timeout for longpoll to 1 hour, and most other
-network connectivity to 1 minute.
-- Simplify output code and remove HW errors from CPU stats.
-- Simplify code and tidy output.
-- Only show cpu algo in summary if cpu mining.
-- Log summary at the end as per any other output.
-- Flush output.
-- Add a linux-usb-cgminer guide courtesy of Kano.
-
-
-Version 1.5.4 - August 14, 2011
-
-- Add new option: --monitor <cmd> Option lets user specify a command <cmd> that
-will get forked by cgminer on startup. cgminer's stderr output subsequently gets
-piped directly to this command.
-- Allocate work from one function to be able to initialise variables added
-later.
-- Add missing fflush(stdout) for --ndevs and conclusion summary.
-- Preinitialise the devices only once on startup.
-- Move the non cl_ variables into the cgpu info struct to allow creating a new
-cl state on reinit, preserving known GPU variables.
-- Create a new context from scratch in initCQ in case something was corrupted to
-maximise our chance of succesfully creating a new worker thread. Hopefully this
-makes thread restart on GPU failure more reliable, without hanging everything
-in the case of a completely wedged GPU.
-- Display last initialised time in gpu management info, to know if a GPU has
-been re-initialised.
-- When pinging a sick cpu, flush finish and then ping it in a separate thread in
-the hope it recovers without needing a restart, but without blocking code
-elsewhere.
-- Only consider a pool lagging if we actually need the work and we have none
-staged despite queue requests stacking up. This decreases significantly the
-amount of work that leaks to the backup pools.
-- The can_roll function fails inappropriately in stale_work.
-- Only put the message that a pool is down if not pinging it every minute. This
-prevents cgminer from saying pool down at 1 minute intervals unless in debug
-mode.
-- Free all work in one place allowing us to perform actions on it in the future.
-- Remove the extra shift in the output code which was of dubious benefit. In
-fact in cgminer's implementation, removing this caused a miniscule speedup.
-- Test each work item to see if it can be rolled instead of per-pool and roll
-whenever possible, adhering to the 60 second timeout. This makes the period
-after a longpoll have smaller dips in throughput, as well as requiring less
-getworks overall thus increasing efficiency.
-- Stick to rolling only work from the current pool unless we're in load balance
-mode or lagging to avoid aggressive rolling imitating load balancing.
-- If a work item has had any mining done on it, don't consider it discarded
-work.
-
-
-Version 1.5.3 - July 30, 2011
-
-- Significant work went into attempting to make the thread restart code robust
-to identify sick threads, tag them SICK after 1 minute, then DEAD after 5
-minutes of inactivity and try to restart them. Instead of re-initialising the
-GPU completely, only a new cl context is created to avoid hanging the rest of
-the GPUs should the dead GPU be hung irrevocably.
-- Use correct application name in syslog.
-- Get rid of extra line feeds.
-- Use pkg-config to check for libcurl version
-- Implement per-thread getwork count with proper accounting to not over-account
-queued items when local work replaces it.
-- Create a command queue from the program created from source which allows us
-to flush the command queue in the hope it will not generate a zero sized binary
-any more.
-- Be more willing to get work from the backup pools if the work is simply being
-queued faster than it is being retrieved.
-
-
-Version 1.5.2 - July 28, 2011
-
-- Restarting a hung GPU can hang the rest of the GPUs so just declare it dead
-and provide the information in the status.
-- The work length in the miner thread gets smaller but doesn't get bigger if
-it's under 1 second.     This could end up leading to CPU under-utilisation and
-lower and lower hash rates.     Fix it by increasing work length if it drops
-under 1 second.
-- Make the "quiet" mode still update the status and display errors, and add a
-new --real-quiet option which disables all output and can be set once while
-running.
-- Update utility and efficiency figures when displaying them.
-- Some Intel HD graphics support the opencl commands but return errors since
-they don't support opencl. Don't fail with them, just provide a warning and
-disable GPU mining.
-- Add http:// if it's not explicitly set for URL entries.
-- Log to the output file at any time with warnings and errors, instead of just
-when verbose mode is on.
-- Display the correct current hash as per blockexplorer, truncated to 16
-characters, with just the time.
-
-
-Version 1.5.1 - July 27, 2011
-
-- Two redraws in a row cause a crash in old libncurses so just do one redraw
-using the main window.
-- Don't adjust hash_div only up for GPUs. Disable hash_div adjustment for GPUs.
-- Only free the thread structures if the thread still exists.
-- Update both windows separately, but not at the same time to prevent the double
-refresh crash that old libncurses has.     Do the window resize check only when
-about to redraw the log window to minimise ncurses cpu usage.
-- Abstract out the decay time function and use it to make hash_div a rolling
-average so it doesn't change too abruptly and divide work in chunks large enough
-to guarantee they won't overlap.
-- Sanity check to prove locking.
-- Don't take more than one lock at a time.
-- Make threads report out when they're queueing a request and report if they've
-failed.
-- Make cpu mining work submission asynchronous as well.
-- Properly detect stale work based on time from staging and discard instead of
-handing on, but be more lax about how long work can be divided for up to the
-scantime.
-- Do away with queueing work separately at the start and let each thread grab
-its own work as soon as it's ready.
-- Don't put an extra work item in the queue as each new device thread will do so
-itself.
-- Make sure to decrease queued count if we discard the work.
-- Attribute split work as local work generation.
-- If work has been cloned it is already at the head of the list and when being
-reinserted into the queue it should be placed back at the head of the list.
-- Dividing work is like the work is never removed at all so treat it as such.
-However the queued bool needs to be reset to ensure we *can* request more work
-even if we didn't initially.
-- Make the display options clearer.
-- Add debugging output to tq_push calls.
-- Add debugging output to all tq_pop calls.
-
-
-Version 1.5.0 - July 26, 2011
-
-- Increase efficiency of slow mining threads such as CPU miners dramatically. Do
-this by detecting which threads cannot complete searching a work item within the
-scantime and then divide up a work item into multiple smaller work items.
-Detect the age of the work items and if they've been cloned before to prevent
-doing the same work over. If the work is too old to be divided, then see if it
-can be time rolled and do that to generate work. This dramatically decreases the
-number of queued work items from a pool leading to higher overall efficiency
-(but the same hashrate and share submission rate).
-- Don't request work too early for CPUs as CPUs will scan for the full
-opt_scantime anyway.
-- Simplify gpu management enable/disable/restart code.
-- Implement much more accurate rolling statistics per thread and per gpu and
-improve accuracy of rolling displayed values.
-- Make the rolling log-second average more accurate.
-- Add a menu to manage GPUs on the fly allowing you to enable/disable GPUs or
-try restarting them.
-- Keep track of which GPUs are alive versus enabled.
-- Start threads for devices that are even disabled, but don't allow them to
-start working.
-- The last pool is when we are low in total_pools, not active_pools.
-- Make the thread restart do a pthread_join after disabling the device, only
-re-enabling it if we succeed in restarting the thread. Do this from a separate
-thread so as to not block any other code.This will allow cgminer to continue
-even if one GPU hangs.
-- Try to do every curses manipulation under the curses lock.
-- Only use the sockoptfunction if the version of curl is recent enough.
-
-
-Version 1.4.1 - July 24, 2011
-
-- Do away with GET for dealing with longpoll forever. POST is the one that works
-everywhere, not the other way around.
-- Detect when the primary pool is lagging and start queueing requests on backup
-pools if possible before needing to roll work.
-- Load balancing puts more into the current pool if there are disabled pools.
-Fix.
-- Disable a GPU device should the thread fail to init.
-- Out of order command queue may fail on osx. Try without if it fails.
-- Fix possible dereference on blank inputs during input_pool.
-- Defines missing would segfault on --help when no sse mining is built in.
-- Revert "Free up resources/stale compilers." - didn't help.
-- Only try to print the status of active devices or it would crash.
-- Some hardware might benefit from the less OPS so there's no harm in leaving
-kernel changes that do that apart from readability of the code.
-
-Version 1.4.0 - July 23, 2011
-
-- Feature upgrade: Add keyboard input during runtime to allow modification of
-and viewing of numerous settings such as adding/removing pools, changing
-multipool management strategy, switching pools, changing intensiy, verbosity,
-etc. with a simple keypress menu system.
-- Free up resources/stale compilers.
-- Kernels are safely flushed in a way that allows out of order execution to
-work.
-- Sometimes the cl compiler generates zero sized binaries and only a reboot
-seems to fix it.
-- Don't try to stop/cancel threads that don't exist.
-- Only set option to show devices and exit if built with opencl support.
-- Enable curses earlier and exit with message in main for messages to not be
-lost in curses windows.
-- Make it possible to enter server credentials with curses input if none are
-specified on the command line.
-- Abstract out a curses input function and separate input pool function to allow
-for live adding of pools later.
-- Remove the nil arguments check to allow starting without parameters.
-- Disable/enable echo & cbreak modes.
-- Add a thread that takes keyboard input and allow for quit, silent, debug,
-verbose, normal, rpc protocol debugging and clear screen options.
-- Add pool option to input and display current pool status, pending code to
-allow live changes.
-- Add a bool for explicit enabling/disabling of pools.
-- Make input pool capable of bringing up pools while running.
-- Do one last check of the work before submitting it.
-- Implement the ability to live add, enable, disable, and switch to pools.
-- Only internally test for block changes when the work matches the current pool
-to prevent interleaved block change timing on multipools.
-- Display current pool management strategy to enable changing it on the fly.
-- The longpoll blanking of the current_block data may not be happening before
-the work is converted and appears to be a detected block change.     Blank the
-current block be
-- Make --no-longpoll work again.
-- Abstract out active pools count.
-- Allow the pool strategy to be modified on the fly.
-- Display pool information on the fly as well.
-- Add a menu and separate out display options.
-- Clean up the messy way the staging thread communicates with the longpoll
-thread to determine who found the block first.
-- Make the input windows update immediately instead of needing a refresh.
-- Allow log interval to be set in the menu.
-- Allow scan settings to be modified at runtime.
-- Abstract out the longpoll start and explicitly restart it on pool change.
-- Make it possible to enable/disable longpoll.
-- Set priority correctly on multipools.     Display priority and alive/dead
-information in display_pools.
-- Implement pool removal.
-- Limit rolltime work generation to 10 iterations only.
-- Decrease testing log to info level.
-- Extra refresh not required.
-- With huge variation in GPU performance, allow intensity to go from -10 to +10.
-- Tell getwork how much of a work item we're likely to complete for future
-splitting up of work.
-- Remove the mandatory work requirement at startup by testing for invalid work
-being passed which allows for work to be queued immediately.     This also
-removes the requirem
-- Make sure intensity is carried over to thread count and is at least the
-minimum necessary to work.
-- Unlocking error on retry. Locking unnecessary anyway so remove it.
-- Clear log window from consistent place. No need for locking since logging is
-disabled during input.
-- Cannot print the status of threads that don't exist so just queue enough work
-for the number of mining threads to prevent crash with -Q N.
-- Update phatk kernel to one with new parameters for slightly less overhead
-again.     Make the queue kernel parameters call a function pointer to select
-phatk or poclbm.
-- Make it possible to select the choice of kernel on the command line.
-- Simplify the output part of the kernel. There's no demonstrable advantage from
-more complexity.
-- Merge pull request #18 from ycros/cgminer
-- No need to make leaveok changes win32 only.
-- Build support in for all SSE if possible and only set the default according to
-machine capabilities.
-- Win32 threading and longpoll keepalive fixes.
-- Win32: Fix for mangled output on the terminal on exit.
-
-
-Version 1.3.1 - July 20, 2011
-
-- Feature upgrade; Multiple strategies for failover. Choose from default which
-now falls back to a priority order from 1st to last, round robin which only
-changes pools when one is idle, rotate which changes pools at user-defined
-intervals, and load-balance which spreads the work evenly amongst all pools.
-- Implement pool rotation strategy.
-- Implement load balancing algorithm by rotating requests to each pool.
-- Timeout on failed discarding of staged requests.
-- Implement proper flagging of idle pools, test them with the watchdog thread,
-and failover correctly.
-- Move pool active test to own function.
-- Allow multiple strategies to be set for multipool management.
-- Track pool number.
-- Don't waste the work items queued on testing the pools at startup.
-- Reinstate the mining thread watchdog restart.
-- Add a getpoll bool into the thread information and don't restart threads stuck
-waiting on work.
-- Rename the idlenet bool for the pool for later use.
-- Allow the user/pass userpass urls to be input in any order.
-- When json rpc errors occur they occur in spits and starts, so trying to limit
-them with the comms error bool doesn't stop a flood of them appearing.
-- Reset the queued count to allow more work to be queued for the new pool on
-pool switch.
-
-Version 1.3.0 - July 19, 2011
-
-- Massive infrastructure update to support pool failover.
-- Accept multiple parameters for url, user and pass and set up structures of
-pool data accordingly.
-- Probe each pool for what it supports.
-- Implement per pool feature support according to rolltime support as
-advertised by server.
-- Do switching automatically based on a 300 second timeout of locally generated
-work or 60 seconds of no response from a server that doesn't support rolltime.
-- Implement longpoll server switching.
-- Keep per-pool data and display accordingly.
-- Make sure cgminer knows how long the pool has actually been out for before
-deeming it a prolonged outage.
-- Fix bug with ever increasing staged work in 1.2.8 that eventually caused
-infinite rejects.
-- Make warning about empty http requests not show by default since many
-servers do this regularly.
-
-
-Version 1.2.8 - July 18, 2011
-
-- More OSX build fixes.
-- Add an sse4 algorithm to CPU mining.
-- Fix CPU mining with other algorithms not working.
-- Rename the poclbm file to ensure a new binary is built since.
-- We now are guaranteed to have one fresh work item after a block change and we
-should only discard staged requests.
-- Don't waste the work we retrieve from a longpoll.
-- Provide a control lock around global bools to avoid racing on them.
-- Iterating over 1026 nonces when confirming data from the GPU is old code
-and unnecessary and can lead to repeats/stales.
-- The poclbm kernel needs to be updated to work with the change to 4k sized
-output buffers.
-- longpoll seems to work either way with post or get but some servers prefer
-get so change to httpget.
-
-
-Version 1.2.7 - July 16, 2011
-
-- Show last 8 characters of share submitted in log.
-- Display URL connected to and user logged in as in status.
-- Display current block and when it was started in the status line.
-- Only pthread_join the mining threads if they exist as determined by
-pthread_cancel and don't fail on pthread_cancel.
-- Create a unique work queue for all getworks instead of binding it to thread 0
-to avoid any conflict over thread 0's queue.
-- Clean up the code to make it clear it's watchdog thread being messaged to
-restart the threads.
-- Check the current block description hasn't been blanked pending the real
-new current block data.
-- Re-enable signal handlers once the signal has been received to make it
-possible to kill cgminer if it fails to shut down.
-- Disable restarting of CPU mining threads pending further investigation.
-- Update longpoll messages.
-- Add new block data to status line.
-- Fix opencl tests for osx.
-- Only do local generation of work if the work item is not stale itself.
-- Check for stale work within the mining threads and grab new work if
-positive.
-- Test for idle network conditions and prevent threads from being restarted
-by the watchdog thread under those circumstances.
-- Make sure that local work generation does not continue indefinitely by
-stopping it after 10 minutes.
-- Tweak the kernel to have a shorter path using a 4k buffer and a mask on the
-nonce value instead of a compare and loop for a shorter code path.
-- Allow queue of zero and make that default again now that we can track how
-work is being queued versus staged. This can decrease reject rates.
-- Queue precisely the number of mining threads as longpoll_staged after a
-new block to not generate local work.
-
-
-Version 1.2.6 - July 15, 2011
-
-- Put a current system status line beneath the total work status line
-- Fix a counting error that would prevent cgminer from correctly detecting
-situations where getwork was failing - this would cause stalls sometimes
-unrecoverably.
-- Limit the maximum number of requests that can be put into the queue which
-otherwise could get arbitrarily long during a network outage.
-- Only count getworks that are real queue requests.
-
-
-Version 1.2.5 - July 15, 2011
-
-- Conflicting -n options corrected
-- Setting an intensity with -I disables dynamic intensity setting
-- Removed option to manually disable dynamic intensity
-- Improve display output
-- Implement signal handler and attempt to clean up properly on exit
-- Only restart threads that are not stuck waiting on mandatory getworks
-- Compatibility changes courtesy of Ycros to build on mingw32 and osx
-- Explicitly grab first work item to prevent false positive hardware errors
-due to working on uninitialised work structs
-- Add option for non curses --text-only output
-- Ensure we connect at least once successfully before continuing to retry to
-connect in case url/login parameters were wrong
-- Print an executive summary when cgminer is terminated
-- Make sure to refresh the status window
-
-Versions -> 1.2.4
-
-- Con Kolivas - July 2011. New maintainership of code under cgminer name.
-- Massive rewrite to incorporate GPU mining.
-- Incorporate original oclminer c code.
-- Rewrite gpu mining code to efficient work loops.
-- Implement per-card detection and settings.
-- Implement vector code.
-- Implement bfi int patching.
-- Import poclbm and phatk ocl kernels and use according to hardware type.
-- Implement customised optimised versions of opencl kernels.
-- Implement binary kernel generation and loading.
-- Implement preemptive asynchronous threaded work gathering and pushing.
-- Implement variable length extra work queues.
-- Optimise workloads to be efficient miners instead of getting lots of extra
-  work.
-- Implement total hash throughput counters, per-card accepted, rejected and
-  hw error count.
-- Staging and watchdog threads to prevent fallover.
-- Stale and reject share guarding.
-- Autodetection of new blocks without longpoll.
-- Dynamic setting of intensity to maintain desktop interactivity.
-- Curses interface with generous statistics and information.
-- Local generation of work (xroll ntime) when detecting poor network
-connectivity.
-
-Version 1.0.2
-
-- Linux x86_64 optimisations - Con Kolivas
-- Optimise for x86_64 by default by using sse2_64 algo
-- Detects CPUs and sets number of threads accordingly
-- Uses CPU affinity for each thread where appropriate
-- Sets scheduling policy to lowest possible
-- Minor performance tweaks
-
-Version 1.0.1 - May 14, 2011
-
-- OSX support
-
-Version 1.0 - May 9, 2011
-
-- jansson 2.0 compatibility
-- correct off-by-one in date (month) display output
-- fix platform detection
-- improve yasm configure bits
-- support full URL, in X-Long-Polling header
-
-Version 0.8.1 - March 22, 2011
-
-- Make --user, --pass actually work
-
-- Add User-Agent HTTP header to requests, so that server operators may
-  more easily identify the miner client.
-
-- Fix minor bug in example JSON config file
-
-Version 0.8 - March 21, 2011
-
-- Support long polling: http://deepbit.net/longpolling.php
-
-- Adjust max workload based on scantime (default 5 seconds,
-  or 60 seconds for longpoll)
-
-- Standardize program output, and support syslog on Unix platforms
-
-- Suport --user/--pass options (and "user" and "pass" in config file),
-  as an alternative to the current --userpass
-
-Version 0.7.2 - March 14, 2011
-
-- Add port of ufasoft's sse2 assembly implementation (Linux only)
-  This is a substantial speed improvement on Intel CPUs.
-
-- Move all JSON-RPC I/O to separate thread.  This reduces the
-  number of HTTP connections from one-per-thread to one, reducing resource
-  usage on upstream bitcoind / pool server.
-
-Version 0.7.1 - March 2, 2011
-
-- Add support for JSON-format configuration file.  See example
-  file example-cfg.json.  Any long argument on the command line
-  may be stored in the config file.
-- Timestamp each solution found
-- Improve sha256_4way performance.  NOTE: This optimization makes
-  the 'hash' debug-print output for sha256_way incorrect.
-- Use __builtin_expect() intrinsic as compiler micro-optimization
-- Build on Intel compiler
-- HTTP library now follows HTTP redirects
-
-Version 0.7 - February 12, 2011
-
-- Re-use CURL object, thereby reuseing DNS cache and HTTP connections
-- Use bswap_32, if compiler intrinsic is not available
-- Disable full target validation (as opposed to simply H==0) for now
-
-Version 0.6.1 - February 4, 2011
-
-- Fully validate "hash < target", rather than simply stopping our scan
-  if the high 32 bits are 00000000.
-- Add --retry-pause, to set length of pause time between failure retries
-- Display proof-of-work hash and target, if -D (debug mode) enabled
-- Fix max-nonce auto-adjustment to actually work.  This means if your
-  scan takes longer than 5 seconds (--scantime), the miner will slowly
-  reduce the number of hashes you work on, before fetching a new work unit.
-
-Version 0.6 - January 29, 2011
-
-- Fetch new work unit, if scanhash takes longer than 5 seconds (--scantime)
-- BeeCee1's sha256 4way optimizations
-- lfm's byte swap optimization (improves via, cryptopp)
-- Fix non-working short options -q, -r
-
-Version 0.5 - December 28, 2010
-
-- Exit program, when all threads have exited
-- Improve JSON-RPC failure diagnostics and resilience
-- Add --quiet option, to disable hashmeter output.
-
-Version 0.3.3 - December 27, 2010
-
-- Critical fix for sha256_cryptopp 'cryptopp_asm' algo
-
-Version 0.3.2 - December 23, 2010
-
-- Critical fix for sha256_via
-
-Version 0.3.1 - December 19, 2010
-
-- Critical fix for sha256_via
-- Retry JSON-RPC failures (see --retry, under "minerd --help" output)
-
-Version 0.3 - December 18, 2010
-
-- Add crypto++ 32bit assembly implementation
-- show version upon 'minerd --help'
-- work around gcc 4.5.x bug that killed 4way performance
-
-Version 0.2.2 - December 6, 2010
-
-- VIA padlock implementation works now
-- Minor build and runtime fixes
-
-Version 0.2.1 - November 29, 2010
-
-- avoid buffer overflow when submitting solutions
-- add Crypto++ sha256 implementation (C only, ASM elided for now)
-- minor internal optimizations and cleanups
-
-Version 0.2 - November 27, 2010
-
-- Add script for building a Windows installer
-- improve hash performance (hashmeter) statistics
-- add tcatm 4way sha256 implementation
-- Add experimental VIA Padlock sha256 implementation
-
-Version 0.1.2 - November 26, 2010
-
-- many small cleanups and micro-optimizations
-- build win32 exe using mingw
-- RPC URL, username/password become command line arguments
-- remove unused OpenSSL dependency
-
-Version 0.1.1 - November 24, 2010
-
-- Do not build sha256_generic module separately from cpuminer.
-
-Version 0.1 - November 24, 2010
-
-- Initial release.
-
diff --git a/NEWS.md b/NEWS.md
new file mode 100644
index 00000000..4b751e0b
--- /dev/null
+++ b/NEWS.md
@@ -0,0 +1,19 @@
+Version 4.0.0 - 15th January 2014
+
+* Fork `veox/sgminer` from `ckolivas/cgminer` version 3.7.2.
+* Remove code referencing SHA256d mining, FPGAs and ASICS. Leftovers most probably still remain.
+* AMD ADL crash fix on R9 chipsets by Benjamin Herrenschmidt.
+* Maximum allowed intensity increased to 42.
+* Move documentation to directory `doc`.
+* `--gpu-threads` support for comma-separated values by Martin "Kalroth" Danielsen.
+* AMD ADL SDK 5 mandatory, preparation for ADL Overdrive 6 support by Martin.
+* Allow changing TCP keepalive packet idle time using `--tcp-keepalive`.
+* Automatic library presence detection by `configure`.
+* `--scrypt` option removed (no other choice now).
+* `--vectors` option removed (current kernel only supports 1).
+* Display per-GPU reject percentage instead of absolute values by Martin.
+* Do not show date in log by default (switch with `--log-show-date`).
+* Fix network difficulty display to resemble that of cgminer 3.1.1.
+* Forward-port relevant bugfixes form `ckolivas/cgminer`, up to cgminer version 3.10.0.
+
+Previous NEWS file available [here](https://github.com/veox/sgminer/blob/829f0687bfd0ddb0cf12a9a8588ae2478dfe8d99/NEWS).
diff --git a/configure.ac b/configure.ac
index ac0c2bd7..4197f16c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,8 +1,8 @@
 ##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
 ##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
-m4_define([v_maj], [3])
-m4_define([v_min], [7])
-m4_define([v_mic], [2])
+m4_define([v_maj], [4])
+m4_define([v_min], [0])
+m4_define([v_mic], [0])
 ##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
 m4_define([v_ver], [v_maj.v_min.v_mic])
 m4_define([lt_rev], m4_eval(v_maj + v_min))