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172 Commits

Author SHA1 Message Date
Jonas Gorski
bf2012d91a ag71xx: close a race between the phy state machine and link state 
A fast stop/start cycle could leave the ag71xx interrupts and tx engine
disabled when using a phy driver with a fixed link and the start/stop
happens between two phy state machine polls.

Prevent this by always forcing the link down on stop regardless of phy
state and having a phy connected.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28380 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-10-08 11:37:14 +00:00
Felix Fietkau
8d0d9487dc ar71xx: fix register range check for DMA stuck checks (thx, Frédéric Moulins) 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28213 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-09-11 17:44:12 +00:00
Felix Fietkau
56093f4fdb ar71xx: add some code to detect DMA stuck conditions on ar7240 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27975 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-08-13 22:30:14 +00:00
Felix Fietkau
02c8410ffd ar71xx: on ar724x only reset the link status in the restart handler, the fast reset takes care of DMA stuck issues 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27973 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-08-13 21:49:46 +00:00
Felix Fietkau
d715b0851d 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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27896 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-08-04 17:36:31 +00:00
Felix Fietkau
8268bc95d1 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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27895 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-08-04 17:36:27 +00:00
Felix Fietkau
d04b90839d ar71xx: fix MAC/MDIO reset mask handling 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27894 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-08-04 17:36:23 +00:00
Felix Fietkau
5ee62f2cf9 ar71xx: reinitialize global switch settings after reset on ar7240 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27705 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-20 14:39:47 +00:00
Felix Fietkau
366b622fda ar71xx: configure address aging on ar7240 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27704 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-20 14:39:42 +00:00
Felix Fietkau
5ce15fed68 ar71xx: reset the phy in the ethernet init on ar724x 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27703 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-20 12:04:34 +00:00
Felix Fietkau
8b276baecf ar71xx: make sure that rx and interrupts are disabled before issuing the hardware reset 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27702 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-20 12:04:29 +00:00
Felix Fietkau
1cd2aa24fb ar71xx: increase the delay after the ethernet MAC reset 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27701 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-20 12:04:25 +00:00
Felix Fietkau
46e19e0fbb ar71xx: fix an unused variable warning 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27700 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-20 12:04:20 +00:00
Felix Fietkau
cc059267c7 ar71xx: do not reset the hardware on transmit timeout - this would mess up the up the PHY state 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27568 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-09 06:30:13 +00:00
Felix Fietkau
7e972c38f2 ag71xx: keep the rx engine stopped while the link is not up, should hopefully fix stability issues from #9405 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27567 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-07-09 06:29:46 +00:00
Felix Fietkau
17d0d1aa06 Revert "ar71xx: only enable the rx engine after the link is up..." 
It messes up the DMA state when the link goes down

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27088 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-06-01 18:15:43 +00:00
Gabor Juhos
a45026d4cb ar71xx: ag71xx: make ring sizes configurable via ethtool 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27041 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-31 22:53:10 +00:00
Gabor Juhos
4d55ed1dc2 ar71xx: ag71xx: prepare to make ring sizes configurable 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27040 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-31 22:53:09 +00:00
Gabor Juhos
abc7b65d39 ar71xx: ag71xx: nuke unused AG71XX_TX_FIFO_LEN define 
Reported-by: Dave Täht <dave.taht@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27039 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-31 22:53:07 +00:00
Felix Fietkau
424bed8c19 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) 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27035 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-30 23:08:01 +00:00
Felix Fietkau
f3431736d5 ar71xx: disable flow control for ar724x, it can get stuck in a loop of continously sending MAC pause frames 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27034 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-30 23:07:57 +00:00
Matteo Croce
c4c0ffb506 ar71xx: detect link on LAN ports 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26922 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-17 11:12:56 +00:00
Matteo Croce
4fb23de559 use correct macros and frame size in ag71xx 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26890 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-14 23:10:06 +00:00
Gabor Juhos
c7cf7f306b ar71xx: ag71xx: make switch register access atomic 
Reading of the PHY registers occasionally returns with bogus values
under heavy load. This misleads the PHY driver and thus causes false
link/speed change notifications which leads to performance loss.

This is easily noticable during an iperf session:

...
[  3] 52.0-53.0 sec  11.3 MBytes  94.4 Mbits/sec
[  3] 53.0-54.0 sec  11.4 MBytes  95.4 Mbits/sec
eth1: link down
br-lan: port 2(eth1) entering forwarding state
eth1: link up (100Mbps/Full duplex)
br-lan: port 2(eth1) entering forwarding state
br-lan: port 2(eth1) entering forwarding state
[  3] 54.0-55.0 sec  6.75 MBytes  56.6 Mbits/sec
[  3] 55.0-56.0 sec  0.00 Bytes  0.00 bits/sec
[  3] 56.0-57.0 sec  10.5 MBytes  88.1 Mbits/sec
...
[  3] 169.0-170.0 sec  11.4 MBytes  95.4 Mbits/sec
[  3] 170.0-171.0 sec  11.4 MBytes  95.4 Mbits/sec
eth1: link up (10Mbps/Half duplex)
[  3] 171.0-172.0 sec  7.63 MBytes  64.0 Mbits/sec
[  3] 172.0-173.0 sec  9.38 MBytes  78.6 Mbits/sec
eth1: link up (100Mbps/Full duplex)
[  3] 173.0-174.0 sec  11.3 MBytes  94.4 Mbits/sec
[  3] 174.0-175.0 sec  11.4 MBytes  95.4 Mbits/sec

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26856 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-08 16:32:53 +00:00
Gabor Juhos
2d8d374be2 ar71xx: ag71xx: fix section mismatch warnings 
The function __devinit ag71xx_probe() references
a function __devexit ag71xx_phy_disconnect().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
ag71xx_phy_disconnect() so it may be used outside an exit section.

The function ag71xx_phy_disconnect() references a function in an exit
section.
Often the function ag71xx_ar7240_cleanup() has valid usage outside the
exit section
and the fix is to remove the __devexit annotation of
ag71xx_ar7240_cleanup.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26855 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-08 13:30:36 +00:00
Gabor Juhos
0e24dd9f57 ar71xx: ag71xx: fix build error if debugfs is enabled 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26854 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-08 13:30:26 +00:00
Gabor Juhos
6373429682 ar71xx: ag71xx: add debugfs entry for [rt]x_ring 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26845 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-07 12:40:34 +00:00
Gabor Juhos
c37636c223 ar71xx: ag71xx: add timestamps to ag71xx_buf 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26844 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-07 12:40:28 +00:00
Gabor Juhos
3c6c9f5866 ar71xx: ag71xx: use dynamically allocated buffer for napi_stats 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26843 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-07 12:40:26 +00:00
Gabor Juhos
24b135c75c ar71xx: ag71xx: use debugfs_remove_recursive 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26842 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-05-07 12:40:25 +00:00
Felix Fietkau
d8962e23e4 ar71xx: only allow internal access to the ar7240 switch, export the MDIO bus behind the switch instead 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26393 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-04-02 00:47:29 +00:00
Felix Fietkau
9e57d0f14c ar71xx: frequent ethernet mac resets upset the MDIO bus on ar7240, so do not run them on every device open, only on tx timeouts 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26392 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2011-04-02 00:47:25 +00:00
Gabor Juhos
8a30b10bb8 ar71xx: drivers/ag71xx: remove deprecated usage of IRQF_SAMPLE_RANDOM 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23982 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-11-12 18:52:28 +00:00
Gabor Juhos
6a833a66ca ar71xx: use pr_* functions in drivers 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23981 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-11-12 18:52:12 +00:00
Gabor Juhos
b61766aa30 ar71xx: return statements does not need parenthesis 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23979 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-11-12 18:51:38 +00:00
Gabor Juhos
b94e0b9e2f ar71xx: fix inline attribute location 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23978 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-11-12 18:51:21 +00:00
Gabor Juhos
ab91049eb3 ar71xx: wrap long lines 
(build errors has been fixed - juhosg)

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23977 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-11-12 18:51:04 +00:00
Gabor Juhos
7832529d3f ar71xx: fix whitespaces nits 
(build error has been fixed - juhosg)

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23975 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-11-12 18:50:29 +00:00
Felix Fietkau
6da874b3a8 ar71xx: fix more section mismatches 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23575 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-10-21 18:42:16 +00:00
Felix Fietkau
c5cabb4673 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 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23574 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-10-21 18:42:11 +00:00
Felix Fietkau
f622088030 ar71xx: add a new driver for the ar7240 switch using swconfig. 
hooks directly into the ethernet driver, as MAC resets also require switch reinitializations and the switch is part of the cpu core anyway
switch only tl-wr741nd (and other devices using this board file, such as tl-wr841nd) over to using this by default, as other devices are still untested
fixes #7563

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22675 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-08-16 19:21:57 +00:00
Felix Fietkau
bf6dfd437d 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 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22075 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-07-06 12:40:07 +00:00
Felix Fietkau
e12c89f637 ag71xx: reset the hardware during open(), this improves recovery from tx timeouts on ar724x considerably 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22055 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-07-04 02:15:08 +00:00
Felix Fietkau
d7965cb882 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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22054 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-07-04 01:31:33 +00:00
Felix Fietkau
fe2c15b6a5 ag71xx: remove rx alignment code for small packets, it seems to break ipv6 for some reason (fixes #7236) 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21166 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-04-26 16:39:13 +00:00
Felix Fietkau
4593e471af 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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20892 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-04-15 23:31:17 +00:00
Gabor Juhos
74f5972ab6 ar71xx: ag71xx: avoid unalinged accesses when using the phy specific receive functions 
Cc: backfire@openwrt.org


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20751 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-04-09 08:40:06 +00:00
Gabor Juhos
a325986fbb 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


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20750 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-04-09 08:38:46 +00:00
Gabor Juhos
0f9fc9edba ar71xx: fix broken LAN ports on the boards with AR8216 switch (closes #7024) 
* cc: backfire@openwrt.org


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20673 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-04-03 13:59:08 +00:00
Gabor Juhos
55a949e0f7 ar71xx: ag71xx: copy received packet to avoid unaligned access in the IP stack 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20506 3c298f89-4303-0410-b956-a3cf2f4a3e73
 2010-03-27 13:05:27 +00:00