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150 commits

Author SHA1 Message Date
Gabor Juhos
b7d7481b07 ar71xx: ag71xx: check PHY IDs before accessing the switch registers 
SVN-Revision: 29541
 2011-12-15 13:25:23 +00:00
Gabor Juhos
0655552860 ar71xx: ag71xx: don't use port 4 of the switch, it is not connected on ar724x 
SVN-Revision: 29540
 2011-12-15 13:25:21 +00:00
Gabor Juhos
204fc6bed5 ar71xx: ag71xx: nuke ar7240sw_init 
SVN-Revision: 29539
 2011-12-15 13:25:20 +00:00
Gabor Juhos
d2316b2a45 ar71xx: ag71xx: add support for getting switch port link status 
SVN-Revision: 29017
 2011-11-13 11:27:04 +00:00
Gabor Juhos
34015ed6e8 ar71xx: ag71xx: remove unused mii_ctrl field from struct ag71xx 
SVN-Revision: 29015
 2011-11-13 11:27:01 +00:00
Gabor Juhos
2d882cff23 ar71xx: ag71xx: remove unused mii_cfg related functions and defines 
SVN-Revision: 29014
 2011-11-13 11:27:00 +00:00
Gabor Juhos
538a9493b9 ar71xx: set MII interface speed from the set_speed callbacks 
SVN-Revision: 29013
 2011-11-13 11:26:59 +00:00
Gabor Juhos
93cd46be13 ar71xx: rename set_pll callback to set_speed in ag71xx_platform_data 
Also rename the corresponding callback functions.

SVN-Revision: 29012
 2011-11-13 11:26:57 +00:00
Gabor Juhos
9579bb4267 ar71xx: ag71xx: remove MII interface setup code 
SVN-Revision: 29011
 2011-11-13 11:26:56 +00:00
Gabor Juhos
2f9e535e89 ar71xx: ag71xx: use fixed link parameters if the mii bus is not registered 
SVN-Revision: 28977
 2011-11-12 10:54:16 +00:00
Felix Fietkau
7a2efd8c28 ar71xx: remove dead code 
SVN-Revision: 28851
 2011-11-08 00:33:20 +00:00
Felix Fietkau
94309039b7 ar71xx: on ar7240, exclude ports from their own port vlan destination mask 
SVN-Revision: 28850
 2011-11-08 00:33:15 +00:00
Jonas Gorski
c674c874b7 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.

SVN-Revision: 28380
 2011-10-08 11:37:14 +00:00
Felix Fietkau
1bdf65f580 ar71xx: fix register range check for DMA stuck checks (thx, Frédéric Moulins) 
SVN-Revision: 28213
 2011-09-11 17:44:12 +00:00
Felix Fietkau
12c84f8eeb ar71xx: add some code to detect DMA stuck conditions on ar7240 
SVN-Revision: 27975
 2011-08-13 22:30:14 +00:00
Felix Fietkau
85ccc74e1b ar71xx: on ar724x only reset the link status in the restart handler, the fast reset takes care of DMA stuck issues 
SVN-Revision: 27973
 2011-08-13 21:49:46 +00:00
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
c7173a211d ar71xx: reinitialize global switch settings after reset on ar7240 
SVN-Revision: 27705
 2011-07-20 14:39:47 +00:00
Felix Fietkau
ca473833c4 ar71xx: configure address aging on ar7240 
SVN-Revision: 27704
 2011-07-20 14:39:42 +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
60d5abbc27 ar71xx: ag71xx: make ring sizes configurable via ethtool 
SVN-Revision: 27041
 2011-05-31 22:53:10 +00:00
Gabor Juhos
7a2651f633 ar71xx: ag71xx: prepare to make ring sizes configurable 
SVN-Revision: 27040
 2011-05-31 22:53:09 +00:00
Gabor Juhos
669aba3871 ar71xx: ag71xx: nuke unused AG71XX_TX_FIFO_LEN define 
Reported-by: Dave Täht <dave.taht@gmail.com>

SVN-Revision: 27039
 2011-05-31 22:53:07 +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
Matteo Croce
4deecea26b ar71xx: detect link on LAN ports 
SVN-Revision: 26922
 2011-05-17 11:12:56 +00:00
Matteo Croce
c0c2e18452 use correct macros and frame size in ag71xx 
SVN-Revision: 26890
 2011-05-14 23:10:06 +00:00
Gabor Juhos
5d77f370d6 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

SVN-Revision: 26856
 2011-05-08 16:32:53 +00:00
Gabor Juhos
3711658281 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.

SVN-Revision: 26855
 2011-05-08 13:30:36 +00:00
Gabor Juhos
ef53029870 ar71xx: ag71xx: fix build error if debugfs is enabled 
SVN-Revision: 26854
 2011-05-08 13:30:26 +00:00
Gabor Juhos
8b67d748cb ar71xx: ag71xx: add debugfs entry for [rt]x_ring 
SVN-Revision: 26845
 2011-05-07 12:40:34 +00:00
Gabor Juhos
2166432ba0 ar71xx: ag71xx: add timestamps to ag71xx_buf 
SVN-Revision: 26844
 2011-05-07 12:40:28 +00:00
Gabor Juhos
896e1d1ab4 ar71xx: ag71xx: use dynamically allocated buffer for napi_stats 
SVN-Revision: 26843
 2011-05-07 12:40:26 +00:00
Gabor Juhos
a6708d20d1 ar71xx: ag71xx: use debugfs_remove_recursive 
SVN-Revision: 26842
 2011-05-07 12:40:25 +00:00
Felix Fietkau
41ee4a283c ar71xx: only allow internal access to the ar7240 switch, export the MDIO bus behind the switch instead 
SVN-Revision: 26393
 2011-04-02 00:47:29 +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
30ef7d55fc ar71xx: use pr_* functions in drivers 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

SVN-Revision: 23981
 2010-11-12 18:52:12 +00:00
Gabor Juhos
f4d5c885e4 ar71xx: return statements does not need parenthesis 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

SVN-Revision: 23979
 2010-11-12 18:51:38 +00:00
Gabor Juhos
e244e1c7cd ar71xx: fix inline attribute location 
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

SVN-Revision: 23978
 2010-11-12 18:51:21 +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