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ChangeLog.txt
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IMQ changelog:
--------------
2015-06-25
Feng Gao add one new parameter of IMQ module(3.18,4.0,and 4.1), imq_dev_accurate_stats (default is 1).
It is used to notify if IMQ get the accurate stats.
When imq_dev_accurate_stats is 0, it could avoid one spin to enhance the performance.
2015-06-24
Feng Gao removed usless skb_cb_store_lock of 4.0 patch. It will be merged into other patches if it is ok.
Fixed malformed linux-3.2-imq.diff, linux-3.10-imq.diff, linux-3.12-imq.diff
2015-06-23
Feng Gao fix one hang issue caused by IPv6 and shutdown interfaces before remove IMQ rule of IPv6
2015-06-20
Feng Gao support for kernel 4.1
2015-06-19
Feng Gao support for kernel 4.0 and fix the hang issue and crash issue by the performance enhancement.
2015-06-17
----------
Feng Gao support for kernel 3.18 and 3.14;
And make one enhancement for IMQ performance. It could enhance IMQ Performance about 20%.
2014-02-24
----------
patch for kernel 3.13.x
2014-01-21
----------
Please don't use patch from 3.11.x on 3.12.4+ Kernels because you will get a warning message in the logs:
skbuff: IMQ: kfree_skb: skb->nf_queue_entry != NULL
2013-10-06
----------
Jussi Kivilinna support kernel 3.11.x
2013-09-24
----------
Support Kernel 3.9.10
2013-07-20
----------
Support Kernel 3.9.1. It should work on 3.9.x also.
2012/12/23:
-----------
Support Kernel 3.7
2012/09/25:
-----------
Minor change in net/netfilter/Makefile.
Patch for 3.3.x also works for 3.4.x
2012/03/19:
-----------
Jussi Kivilinna <[email protected]>:
- Port to 3.3
2012/01/05:
-----------
Jussi Kivilinna <[email protected]>:
- Port to 3.2
2011/11/04:
-----------
Jussi Kivilinna <[email protected]>:
- Port to 3.1
- Clean-up, move 'get imq device pointer by imqX name' to
separate function from imq_nf_queue().
2011/11/03:
-----------
Germano Michel <[email protected]>:
- Fix IMQ for net namespaces
2011/08/16:
-----------
Jussi Kivilinna:
- Clear IFF_TX_SKB_SHARING flag that was added for linux 3.0.2
2011/07/26:
-----------
Jussi Kivilinna:
- Add queue mapping checks for packets exiting IMQ.
- Port to 3.0
2011/07/12:
-----------
- Crash fix that happens when the receiving interface has more
than one queue (add missing skb_set_queue_mapping in
imq_select_queue).
2011/03/18:
-----------
Jussi Kivilinna:
- Port to 2.6.38
2010/08/15:
-----------
Jussi Kivilinna:
- Port to 2.6.35
- Simplify hook registration by using nf_register_hooks.
- nf_reinject doesn't need spinlock around it, therefore remove
imq_nf_reinject function. Other nf_reinject users protect
their own data with spinlock. With IMQ however all data is
needed is stored per skbuff, so no locking is needed.
- Changed IMQ to use 'separate' NF_IMQ_QUEUE instead of
NF_QUEUE, this allows working coexistance of IMQ and other
NF_QUEUE users.
- Make IMQ multi-queue. Number of IMQ device queues can be
increased with 'numqueues' module parameters. Default number
of queues is 1, in other words by default IMQ works as
single-queue device. Multi-queue selection is based on
IFB multi-queue patch by Changli Gao <[email protected]>.
2010/02/25:
-----------
Jussi Kivilinna:
- Port to 2.6.33
2009/12/08:
-----------
Jussi Kivilinna:
- Port to 2.6.32
- Add check for skb->nf_queue_entry==NULL in imq_dev_xmit()
- Also add better error checking for skb->nf_queue_entry usage
2009/09/26:
-----------
Jussi Kivilinna:
- Add imq_nf_reinject_lockless to fix deadlock with
imq_nf_queue/imq_nf_reinject.
2009/04/20:
-----------
Jussi Kivilinna:
- Use netdevice feature flags to avoid extra packet handling
by core networking layer and possibly increase performance.
2009/04/12:
-----------
Jussi Kivilinna:
- 2.6.27 and newer overwrite control buffer.
- Add skb_save_cb/skb_restore_cb helper functions for backuping
control buffer. This is needed because qdisc-layer on kernels
- Add better locking for IMQ device. Hopefully this will solve SMP issues.
- Port to 2.6.27
- Port to 2.6.28
- Port to 2.6.29 + fix rmmod not working
2008/08/06:
-----------
2.6.26 - (JK)
- Replaced tasklet with 'netif_schedule()'.
- Cleaned up and added comments for imq_nf_queue().
2008/06/17:
-----------
2.6.25 - Changed imq.c to use qdisc_run() instead of qdisc_restart() and moved
qdisc_run() to tasklet to avoid recursive locking.
New initialization routines to fix 'rmmod' not working anymore. Used code from ifb.c. (Jussi Kivilinna)
2005/12/16:
-----------
IMQ versions between 2.6.7 and 2.6.13 were released with almost no problems.
2.6.14-x was released with some important changes: nfcache was removed.
After some weeks of trouble we figured out that some IMQ fields in skb were missing
in skbuff.c - skb_clone and copy_skb_header.
These functions are correctly patched by this new patch version.
Thanks for all who helped to figure out all the problems with
2.6.14.x:
- Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX, Kevin Shanahan, Richard Lucassen,
Valery Dachev (hopefully I didn't forget anybody). I apologize again for my lack of time.
2004/06/30:
-----------
New version of IMQ patch to kernels <=2.6.7 including the following changes:
- Correction of ipv6 support "+"s issue (Hasso Tepper)
- Correction of imq_init_devs() issue that resulted in kernel OOPS unloading IMQ as module (Norbert Buchmuller)
- Addition of functionality to choose number of IMQ devices during kernel config (Andre Correa)
- Addition of functionality to choose how IMQ hooks on PRE and POSTROUTING (after or before NAT) (Andre Correa)
- Cosmetic corrections (Norbert Buchmuller) (Andre Correa)