Version 2.0.4 (2008-07-02)
==========
* Improved garbage collection of sockets in the tcp_cm. 
* Removed some wrong warning/error printouts.
* Fixed bug in where linx_info_signal_payload failed for 32-bit binaries on 64-bit kernels.
* Fixed bug where __copy_from_user_atomic failed.
* Fixed bug that lead to the LINX kernel module couldn't be unloaded.	
* Added optimized linx_do_sendmsg call for attach/hunt/tmo/newlink signals.
* Support for Linux kernel 2.6.25
* A new token based interface was added for new link notifications.	
* Hunt/attach/tmo signals are stored in skb buffers and not kernel memory.
* Fixed bug where max spids per link was one less than user configured.
* LINX_ETHCM_WORKAROUND, this is a temporary fix that should solve a design flaw in
  the Ethernet CM. Currently the function recv_pkt() must not run simultaneous with
  itself (for the same connection). This may happend if 'Linx Ethernet interrupts'
  are serviced by different CPUs. As long as all 'Linx Ethernet interrupts' are
  serviced by the same CPU, this fix is not required.
  The LINX_ETHCM_WORKAROUND is off by default and must be enabled with the build
  option LINX_ETHCM_WORKAROUND=yes.
  Messages like 'RLNH unexpected msg_no: ...' or 'unknown msg ...' in the kernel
  ring buffer indicates that you may have run into this problem and needs to rebuild
  Linx with LINX_ETHCM_WORKAROUND=yes.
* Bugfix in LINX message trace. If a fragmeneted message was received, only the first
  fragment was traced.
* Fixed bug that lead to the LINX kernel module couldn't be unloaded.
		
Version 2.0.3 (2008-05-27)
==========
* Handling of feature strings in RLNH and Ethernet connection manager updated and less error prone.
	
Version 2.0.2 (2008-03-30)
==========
* Workaround added for older linux kernels missing atomic_inc_return.
* Replace atomic_inc()/atomic_read() combination with single call to atomic_inc_return().
* Fixed bug where a LINX socket could be closed by kernel module while user still is holding it.
 
Version 2.0.1 (2008-03-28)
==========	
* Wireshark patches added for Linxdisc and LINX internal messages.
* Support for Linux kernel 2.6.24
* Removed meaningless info message about already dead processes from linxdisc.
* Added /* *INDENT-OFF* */ ... /* *INDENT-ON* */ guards to linx.h.
* Reserved field was missing from linxdisc protocol description.
* Enable linxdisc to set link parameters.
* LINX Ethernet type number changed from 0x9999 to now officially allocated typenumber 0x8911.
* Removed prefix eth_conn_ from ecm funcs, removed interlal_ from rlnh + ipc funcs.
* Change void * in eth_cm to struct sk_buff *, remove adaptive coalescing.
* STATIC_INLINE -> static inline, don't wrap list use in macros, remove other pointless ETH_CONN_* macros.
* Fixed Indentation and formatting.
* Fix error found by Coverity, unused variable(linux.c), mem leak(linx_message_trace.c).
* Fix possible memory overflow and loops in linxdisc.
* Fix typos in create_{eth,tcp}_link(3) man pages.
* Add create end destroy functions for TCP to libcfg.
	
Version 2.0.0 (2008-01-18)
==========
* Set version to 2.0.0
* MTU is negotiated per default and re-negotiated if mtu of the interface is changed.
* Fix possible memory leak in libcfg.
* Fixed "free after free" in linx_ioctl_info_filters() and "use after free" in __linx_internal_free_pend_tmo().
* Parameter order between LINX_SIGSELECT and LINX_OSTIME was exchanged for linx_receive_w_tmo() and linx_receive_from().
* If 'make install' is issued, modules will be automatically loaded when creating links/spids.
* Linxstat were showing wrong signo when listing receive queue.
* New version of the User's Guide
* Fixed some soft lockups by exchanging read/write locks to _bh ones in hunt.c.
* Fix for memory fragmentation for when copying the signal into kernel-space.
* In function eth_conn_destroy_conn(), let's delete timers before freeing lists etc.
* In eth_conn_disconnect_link(), let's get the spinlock before the if-statement.
* In __skb_unlink_compat(), let's unlink sk_receive_queue instead of sk_write_queue.
* Fixed a recursive lock in rlnh/ipc layer.
* Removed ipc_unlock_spid and replaced them with sock_put (race between linx_release (SOCK_DEAD) and linx_spid_to_sock).
* Updated linxstat documentation.
* LINX_INFO_SIGNAL_PAYLOAD no works with MEM_FRAGMENTATION_SUPPORT.
* Removed some compiler warnings for some Linux kernel versions.
* Fixed a problem in linx_skb_copy_bits. It is now synched with skb_copy_bits from 2.6.23.1
* Fixed compiler warning in association with ioctl() on PPC64.
* Removed check for attach to self. Even though it's pointless it should be allowed.
* The tcp cm now delivers sk_buffs to the rlnh layer. This removes a lot of memcopies and improves the performance.
* Another 2.6.23 fix, only visible if MEM_FRAGMENTATION_SUPPORT is set.
* Add support for PPC64 and 2.6.23 kernels.
* Update patches for latest versions of libpcap and tcpdump.
* Added the Linx Timeout Service.
* More information has been added to procfs for Ethernet Connection manager.
* Linkaddresses are sent as 32 bit now by the Ethernet Connection manager instead of 16 bits.
* Add feature negotiation stuff to linxcfg, use getopt_long.
* Better send with sender handling when sender is a phantom.
* TCP CM protocol version was bumped to 3 and improvements were made. NOTE: Version 1, 2 and 3 are NOT compatible.
* Replaced deprecated SPIN_LOCK_UNLOCKED with spin_lock_init().
* RLNH protocol adjusted, now version 2
* Fixed some minor issues found by a customer.
* Added some more CFG types. Fixed bug in TCPCM CFG.
* Fixed bug when compiling with per-socket statistics and link supervision.
* Updated source code for tcp_cm after code review.
* Fixed a problem with miscalculated statistics in tcp_cm.
* Removed some compiler warnings.
* Fixes for running a 32-bit LINX application on a 64-bit machine.
* Linxdisc updated, version field added to protocol, updated documentation and various buggfixes.
* Added asserts in liblinx.
* Feature Negotiation. ETH CM protocol adjusted, now version 3.


Version 1.4.1 (2007-09-21)
==========
* TCP CM protocol version was bumped to 2. Version 1 and 2 are NOT compatible.
* Added support for Linux kernel version 2.6.22
* TCP Connection Manager protocol was incremented.
* Improved keepalive for the tcp cm.

Version 1.4.0 (2007-09-18)
==========
* Rename option live_timeout in the TCP CM to live_tmo for consistency with older releases.
* Added new linxcfg files, linxcfg.c and linx_cfg_cm.h to MANIFEST.
* Added linxdump patch files to MANIFEST, updated dir-levels in one patch file.
* Updated User's Guide.
* Remove linxcfg_tcp and add the functionality to linxcfg.
* Update manuals and accordingly.
* Endian conversion fix when routing messages using a CM that doesn't use skb buffers.
* Fixed crash if user tried to create a Ethernet connection from unknown device.
* Cosmetic linxstat fix.
* Fixed a race between when closing of a socket and a attach is received.
* Fixed bug in linxstat.
* Added linxdisc.h to MANIFEST.
* RLNH controll messages are no longer copied by the ethernet CM.
* Optimizations and buggfixes in the RLNH layer.
* Added "receive_but", i.e. receive any signal except the ones mentioned in the filter.
* Added a linx tcp connection manager.
* Added new linxdisc files to MANIFEST, fixed bug in linxdisc clean make rule.
* Added option to filer output by socket type in linxstat.
* Better collision handling and supervision of peers in linxdisc.
* Support for Linux Kernel 2.6.22 without the ERRORCHECKS=yes option (struct sk_buff changed).
* Renamed linxdump patches to make it easier to apply them in correct order.
* Allow users to select radix when displaying signo in linxdump.
* Fixed build issue with Linx on SUSE linux.
* Add missing info and fix minor formatting issues in linxstat documentation.
* Add missing kernel version declaration in kernel Makefile.
* Add "batch mode" to linxstat, in batch mode linxstat just print # of LINX sockets.
* Fixed linxdump failing to print signo on 64 bit architectures.
* Added fix for linxdump not being able to save capture files.

Version 1.3.0 (2007-07-05)
==========
* EthCM: MTU is now fetched from the device or set when creating the link.
* Added link attribute.
* Added linx_get_stat and linx_free_stat to the LINX user api and updated documentation.
* linxstat can now display per socket statistics.
* Changed per socket statistics counters to 64bit.
* Documentation was not updated when the spid field was removed from linx_hunt_param, fixed now.
* Added statistics counter per-socket (enable with SOCK_STAT=yes).
* Fixed memory leak in linxdisc.
* Fixed bug where LINX_INFO_SIGNAL_PAYLOAD could return with a locked spinlock.
* LINX_INFO_NAME now returns 0 and empty string if LINX socket has not been assigned a huntname yet.

Version 1.2.0 (2007-05-14)
==========
* Added the MEM_FRAGMENTATION_SUPPORT=yes build option. Used to enable memory fragmentation handling as part of intra process communication.
* Added Modules.symvers to clean make target.
* Fixed memory leak/wild free in linx_receive() if non EINTR error is returned from recvmsg.
* Fixed a race on SMP where the LINX socket slab cache could be used after it was destroyed.
* Fixed a race on SMP between receiving a fragment of a message and disconnecting the link.
* Fixed a race when receiving a message while closing a socket.
* linx_bmark now supports mixed endian.
* Fixed a bug with no_of_pend_attach counter.
* Updated and changed name for example/simple to example/linx_basic.
* Updated and changed name for example/linx_bmark to bmark/linx_bmark.
* Remove endian conversion of signo when forwarding messages over multihop links.
* Modprobe works after running "make install" as root. Modules can be uninstalled by "make uninstall".
* Renamed some module parameters. max_sock_per_link to linx_max_sockets_per_link, max_num_links to linx_max_links, linx_sockbuf_max to linx_sockbuf_size, linx_osattref_max to linx_max_attrefs and linx_spid_max to linx_max_spids.
* Added error checking of previously missed out memory allocations.
* Removed annoying error message when asking for the name of a dead process.
* Removed debug message from linxdisc.
* Fixed a race between attacher and attachee.
* Updated liblinx/linx.c after a shorter review session.
* Fixed a problem with linxdisc exiting when network load was high on a node.
* Fixed some erroneous information in man page for linx_receive_w_tmo().
* Fix some minor ETHCM statistic bugs (stat.c/stat.h/stat.mk).
* Added two patch files, one for tcpdump and one for libpcap. These two patches are needed for linx message trace.
* Added LINX Message Trace to MANIFEST.
* sendpage() on LINX sockets results in a NOTSUPPORTED instead of a call to sendmsg().
* Fix poll() bug in the LINX kernel module and optimized performace as well.
* linux/config.h -> linux/autoconf.h, added {} around 2-statement else-branch.
* Compile-time configuration of ETH_CM statistics.
* Function call API for Creating/Destroying links.
* Fixed interrupted syscall bug during linx_receive_w_tmo().
* Support for Linux Kernel version 2.6.20 (INIT_WORK fix).
* Added missing ntohl() and fixed strncmp() bug in linxdisc.
* Fixed an erroneous increment of the use count of linx_eth_cm.
* Optimized LINX library.
* Changed send* to return errno EPIPE if dest socket is being closed.
* Removed dependencies on linux/compiler.h from example/linx_bmark
* linx_receive_w_tmo now uses poll() instead of select() due to problems with many file descriptors (>1024) in select().
* Renamed main.c and common.c to linx_bmark.[hc].
* Added internal message trace support, first iteration.
* Removed ioctl() calls disconnect, param_get and param_set.
* Fixed cleanup of /proc when unloading cm.
* Fixed buggy sem-call, was up() should be down().
* Added missing EXPORT_SYMBOL of linx_trace_lock.
* Fixed race in linxstat causing inconsistent results.
* Added LINX_KERNEL_WORKAROUND_1.
* Fixed a lock bug in the rwsem bug workarounds in rlnh_linux.c.
* Made the linx trace symbols exported to make sure linx tracing from CM kernel
  modules can be used.
* Replace use of init_MUTEX_LOCKED with init_MUTEX followed by up.
* Fixed an issue with hunt.
* Fixed some issues with changes in the linux kernel.
* Fixed bug in skbuff handling causing hangs on ethernet driver level.
* Moved linx in procfs from /proc to /proc/net.
* The linx module was split in two. LINX now consist of linx.ko and a module for CM, linx_*_cm.ko
* Fixed bug causing links not to reconnect when the device MAC address is changed.
* Fixed bug causing bug (crash) when a connected ethernet device is completely removed.
* linx_bmark updated.
* Reworked the timeout wrappers.
* Removed ifdefs around use of Connection ID.
* Modified build. Asserts are no longer on by default.

Version 1.1.0 (2006-11-10)
==========

* Fixed a problem regarding cleanup of orphan sk-buffers.
* Fixed problems with removal of the LINX kernel module.
* Updated the linx_bmark example with a throughput benchmark.
* Updated the linx_bmark example with a liblinx api/socket api option.
* Corrected bug causing the payload buffer used with sendto() and sendmsg()
  to be modified on little endian systems.
* Improved handling of distribution related kernel version dependencies.
* Some fixes regarding socket reference counting.
* Some variables were not safe when running SMP.
* Fixed problems when exceeding max_num_links limit.
* Added limits and verification of kernel module parameters.
* Use vmalloc() to allocate spid and attref arrays, kmalloc() can't handle required sizes.
* Removed bad __init/__exit tags.
* Extra version handling for FC4 and Monta Vista 401.
* Fixed a bug in eth_cm/linux.c eth_conn_add_connection(). Connection id overwritten.
* Fix a memory leak, a double free, and a NULL-ref.
* Arguments when loading kernel module added.
* Default hunt signal is now allocated by the linx kernel module.
* Fixed a small bug regarding attach reference counting.
* Introduced a retry count while sending through sendto() in linxdisc.
* All linx_* function calls in liblinx now calls abort() if the LINX handle is invalid.
* Fix bug in conversion from LINX_OSTIME to struct timeval in receive_w_tmo.
* Fix linxdisc no longer loses its node_name upon a reread of the conf-file.
* linxdisc now dynamically adapts to renaming of remote nodes.
* Added linx_free_name() call to liblinx.
* Build options to the kernel module are now checked.
* Fix linxdisc no longer exits when a network interface it depends on is taken down
* Improved SMP and 64-bit support

Version 1.0.3 (2006-09-15)
==========
* Go to linx_panic() when return value from linx_internal_sendmsg() is below zero
* Added User's Guide
* Corrected problem when retrieving the hunt name of a socket while the socket is being closed.
* Fix a problem with arbitrary spids sent to linx_attach().
* Fix problem with dropped hunts when more than two links are used.
* Fix a hole when linx_free_buf() could return without clearing *sig.
* Clear prev and next pointers when sig_adm block is unlinked.
* x86_64 support added.
* Basic SMP support added (big tasklet lock).
* Added node name condifuration to linxdisc.
* Bug fixed memory leak in linx_attach.
* Bug fixed problem unloading linx.ko.
* Added LINX_INFO_SIGNAL_PAYLOAD

Version 1.0.2 (2006-08-18)
==========
* Fixed race-conditions in connect/disconnect and create/destory
* Optimized send-receive latency and throughput by improved receive queue locking.
* Possible to hunt on your self now.
* Field signal_reference removed from struct linx_info_signal
* Field common_filter_offset removed from struct linx_info_filters
* Field critical_filter_offset removed from struct linx_info_filters
* Field common_sigselect renamed to sigselect in struct linx_receive_filter_param
* Field common_sigselect_size renamed to sigselect_size in struct linx_receive_filter_param

Version 1.0.1 (2006-08-11)
==========
* Fixed problem with receive of signals larger than 4096 bytes.
* Fixed memory leak in hunt.c.
* Removed dead code and NULL-pointer reference in af_linx.c.
* Removed reference after free.
* Fixed race-conditions.
* Optimizations, minor locking changes.
* Cleanup of comments in header files.
* Removed unnecessary stack dumps.
* "Deferred queue exhausted" was changed to a warning.
* Fixed a bug in linxdisc where it got stuck in a non-interruptible state.

Version 1.0 (2006-07-31)
==========
* Initial Release


Enea <linx@enea.com>