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86 commits

Author SHA1 Message Date
Felix Fietkau
4b75394056 ar71xx: fix ethernet FIFO state corruption on ar7240 
When starting/stopping DMA sometimes the FIFO state gets corrupted,
leading to wildly fluctuating latencies or packet data corruption.
Fix this by issuing a fast MAC reset as soon as the link is detected
as up. Fixes #9689, #9405

SVN-Revision: 27896
 2011-08-04 17:36:31 +00:00
Felix Fietkau
d2aeca6b6d ag71xx: fix memory corruption issues on ar7240 on ethernet start/stop 
When the DMA engine state gets corrupted due to a hardware issues, it
often won't stop rx until a full reset is issued. In that case the hardware
must keep a valid descriptor, otherwise it will write to random places in
system RAM, triggering random crashes. To fix this, keep a dummy descriptor
without a buffer that keeps the DMA engine in a sane state until the reset
is done

SVN-Revision: 27895
 2011-08-04 17:36:27 +00:00
Felix Fietkau
500c3a1475 ar71xx: fix MAC/MDIO reset mask handling 
SVN-Revision: 27894
 2011-08-04 17:36:23 +00:00
Felix Fietkau
fefc79f3cb ar71xx: reset the phy in the ethernet init on ar724x 
SVN-Revision: 27703
 2011-07-20 12:04:34 +00:00
Felix Fietkau
005fe5d1fd ar71xx: make sure that rx and interrupts are disabled before issuing the hardware reset 
SVN-Revision: 27702
 2011-07-20 12:04:29 +00:00
Felix Fietkau
e7ab000008 ar71xx: increase the delay after the ethernet MAC reset 
SVN-Revision: 27701
 2011-07-20 12:04:25 +00:00
Felix Fietkau
255dcaa3a6 ar71xx: fix an unused variable warning 
SVN-Revision: 27700
 2011-07-20 12:04:20 +00:00
Felix Fietkau
f3d693c0ee ar71xx: do not reset the hardware on transmit timeout - this would mess up the up the PHY state 
SVN-Revision: 27568
 2011-07-09 06:30:13 +00:00
Felix Fietkau
2806c75c07 ag71xx: keep the rx engine stopped while the link is not up, should hopefully fix stability issues from #9405 
SVN-Revision: 27567
 2011-07-09 06:29:46 +00:00
Felix Fietkau
31dd60689e Revert "ar71xx: only enable the rx engine after the link is up..." 
It messes up the DMA state when the link goes down

SVN-Revision: 27088
 2011-06-01 18:15:43 +00:00
Gabor Juhos
7a2651f633 ar71xx: ag71xx: prepare to make ring sizes configurable 
SVN-Revision: 27040
 2011-05-31 22:53:09 +00:00
Felix Fietkau
2b5402d128 ar71xx: only enable the rx engine after the link is up, fixes a race condition that got rx stuck when the interface is brought up during lots of inbound traffic (thx, matteo) 
SVN-Revision: 27035
 2011-05-30 23:08:01 +00:00
Felix Fietkau
0ebc93831f ar71xx: disable flow control for ar724x, it can get stuck in a loop of continously sending MAC pause frames 
SVN-Revision: 27034
 2011-05-30 23:07:57 +00:00
Gabor Juhos
2166432ba0 ar71xx: ag71xx: add timestamps to ag71xx_buf 
SVN-Revision: 26844
 2011-05-07 12:40:28 +00:00
Felix Fietkau
acbb3e50e7 ar71xx: frequent ethernet mac resets upset the MDIO bus on ar7240, so do not run them on every device open, only on tx timeouts 
SVN-Revision: 26392
 2011-04-02 00:47:25 +00:00
Gabor Juhos
3106aea40b ar71xx: drivers/ag71xx: remove deprecated usage of IRQF_SAMPLE_RANDOM 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

SVN-Revision: 23982
 2010-11-12 18:52:28 +00:00
Gabor Juhos
acd8ad4de5 ar71xx: wrap long lines 
(build errors has been fixed - juhosg)

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

SVN-Revision: 23977
 2010-11-12 18:51:04 +00:00
Gabor Juhos
500fac1735 ar71xx: fix whitespaces nits 
(build error has been fixed - juhosg)

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

SVN-Revision: 23975
 2010-11-12 18:50:29 +00:00
Felix Fietkau
6656450c6d ar71xx: fix more section mismatches 
SVN-Revision: 23575
 2010-10-21 18:42:16 +00:00
Felix Fietkau
8858d90afe ar71xx: improve 2.6.36 compatibility. also, instead of adding a forward port patch to the 2.6.36 patches, add a backport patch to 2.6.32 
SVN-Revision: 23574
 2010-10-21 18:42:11 +00:00
Felix Fietkau
a27ea45e76 ar71xx: only reinit the ethernet MAC at .open() on ar724x for now, until we've figured out what part of it causes the issue described in #7563 
SVN-Revision: 22075
 2010-07-06 12:40:07 +00:00
Felix Fietkau
15b209d09f ag71xx: reset the hardware during open(), this improves recovery from tx timeouts on ar724x considerably 
SVN-Revision: 22055
 2010-07-04 02:15:08 +00:00
Felix Fietkau
89da22d1ea ag71xx: fix a memory corruption bug that happens if you flood the interface with packets while it's being brought down fixes boot time crashes under load reported by matteo 
SVN-Revision: 22054
 2010-07-04 01:31:33 +00:00
Felix Fietkau
7966004d99 ag71xx: remove rx alignment code for small packets, it seems to break ipv6 for some reason (fixes #7236) 
SVN-Revision: 21166
 2010-04-26 16:39:13 +00:00
Felix Fietkau
1c0e751391 ar71xx: fix up alignment handling 
- on ar724x, rx buffers can be aligned with an offset of 2, which keeps the ip header aligned
- alignment offset is only added if the ar8216 workaround is not active and the phy driver does not advertise its own packet alignment
- ar71xx and ar91xx can not handle rx alignment offsets, however taking a hit on unaligned exceptions seems to have less overhead than re-aligning the data for large packets
- use memmove to re-align small packets, if necessary

tested on ar9132, ar7240 and ar7242 based devices without ar8216 headers

SVN-Revision: 20892
 2010-04-15 23:31:17 +00:00
Gabor Juhos
4c29a2c263 ar71xx: ag71xx: avoid unalinged accesses when using the phy specific receive functions 
Cc: backfire@openwrt.org

SVN-Revision: 20751
 2010-04-09 08:40:06 +00:00
Gabor Juhos
4a28844d80 ar71xx: ag71xx: call the phy driver's netif_receive_skb() 
Ag71xx needs to call the phy's netif_receive_skb() to allow phy drivers
to mangle rx packets. This patch fixes it.

This fixes the header mangling of the AR8216 driver.

Signed-off-by: Jonas Gorski <jonas.gorski+openwrt@gmail.com>
Cc:backfire@openwrt.org

SVN-Revision: 20750
 2010-04-09 08:38:46 +00:00
Gabor Juhos
c874513cfa ar71xx: fix broken LAN ports on the boards with AR8216 switch (closes #7024) 
* cc: backfire@openwrt.org

SVN-Revision: 20673
 2010-04-03 13:59:08 +00:00
Gabor Juhos
b7ca043240 ar71xx: ag71xx: copy received packet to avoid unaligned access in the IP stack 
SVN-Revision: 20506
 2010-03-27 13:05:27 +00:00
Gabor Juhos
f9acf8ada1 ar71xx: ag71xx: introduce ag71xx_has_ar8216() helper 
SVN-Revision: 20505
 2010-03-27 13:05:24 +00:00
Gabor Juhos
200db5ebb5 ar71xx: ag71xx: reorganize ag71xx_rx_packet function 
SVN-Revision: 20504
 2010-03-27 13:05:20 +00:00
Gabor Juhos
245775a49f ar71xx: ag71xx: Add netpoll support 
This patch adds support for polling interrupts, used by
netconsole and the likes.

Tested on d-link dir-615 C1 using netconsole.

Signed-off-by: Pat Erley <pat-lkml@erley.org>

SVN-Revision: 20503
 2010-03-27 13:05:17 +00:00
Gabor Juhos
2a818f388a ar71xx: ag71xx: fix MAC address setup 
SVN-Revision: 20092
 2010-03-09 18:05:36 +00:00
Gabor Juhos
2702ae4e8f ar71xx: ag71xx: move calling ag71xx_phy_stop out from spinlock 
SVN-Revision: 20004
 2010-03-05 20:29:22 +00:00
Gabor Juhos
a4bccded57 ar71xx: ag71xx: move link update function 
SVN-Revision: 20003
 2010-03-05 20:29:18 +00:00
Gabor Juhos
eacf9a7614 ar71xx: ag71xx: don't use dev->trans_start 
SVN-Revision: 20002
 2010-03-05 20:29:14 +00:00
Gabor Juhos
ba288eeb84 ar71xx: ag71xx: use dma_unmap_single to unmap frames 
SVN-Revision: 20001
 2010-03-05 20:29:10 +00:00
Gabor Juhos
0e4eaea770 ar71xx: ag71xx: use correct device pointer for dma_map_single 
SVN-Revision: 19951
 2010-03-02 13:36:18 +00:00
Gabor Juhos
84823e1477 ar71xx: ag71xx: don't use virt_to_phys 
SVN-Revision: 19950
 2010-03-02 13:36:15 +00:00
Gabor Juhos
e157281c5d ar71xx: ag71xx: use NETDEV_TX_OK 
SVN-Revision: 19948
 2010-03-02 13:36:09 +00:00
Gabor Juhos
1612fd447d ar71xx: enable TX/RX flow control on the AR7240 
SVN-Revision: 19832
 2010-02-24 13:38:41 +00:00
Gabor Juhos
d8ace8978a ar71xx: add NAPI statistics to the ag71xx driver 
SVN-Revision: 19079
 2010-01-08 20:22:55 +00:00
Gabor Juhos
51c76750fc ar71xx: add detailed interrupt statistics for the ag71xx driver 
SVN-Revision: 19054
 2010-01-06 15:24:01 +00:00
Gabor Juhos
63a320c8f7 ar71xx: add dummy debugfs support for the ag71xx driver 
SVN-Revision: 19031
 2010-01-04 14:28:25 +00:00
Felix Fietkau
6a90a35f2b Revert "ar71xx: move phy_connect call to ag71xx_open" (r18691) It's causing issues with switch drivers that register with swconfig and makes fixing those unnecessarily complicated. Fixes rtl8306 switch support on the WRT160NL. 
SVN-Revision: 18789
 2009-12-15 22:37:54 +00:00
Gabor Juhos
18885b425c ar71xx: merge ag71xx specific patches 
SVN-Revision: 18751
 2009-12-11 16:41:40 +00:00
Gabor Juhos
d38fd20cb7 ar71xx: move mdio_bus reset code 
SVN-Revision: 18749
 2009-12-11 12:21:15 +00:00
Gabor Juhos
18867965f7 ar71xx: add support for external mii_bus 
SVN-Revision: 18692
 2009-12-08 10:29:27 +00:00
Gabor Juhos
0e79007faf ar71xx: move phy_connect call to ag71xx_open 
SVN-Revision: 18691
 2009-12-08 10:29:19 +00:00
Gabor Juhos
35dbf66787 ar71xx: override fifo_cfg[123] values on AR7240 
SVN-Revision: 18614
 2009-11-30 13:53:39 +00:00