linux.git/drivers/net/sky2.c, branch v2.6.23

sky2: jumbo frame regression fix

2007-10-03T17:39:42+00:00

Remove unneeded check that caused problems with jumbo frame sizes.
The check was recently added and is wrong.
When using jumbo frames the sky2 driver does fragmentation, so
rx_data_size is less than mtu.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: fix transmit state on resume

2007-09-28T03:32:29+00:00

This should fix http://bugzilla.kernel.org/show_bug.cgi?id=8667

After resume, driver has reset the chip so the current state
of transmit checksum offload state machine and DMA state machine
will be undefined.

The fix is to set the state so that first Tx will set MSS and offset
values.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: FE+ vlan workaround

2007-09-28T03:32:28+00:00

The FE+ workaround means the driver can no longer trust the status register
to indicate VLAN tagged frames.  The fix for this is to just disable VLAN
acceleration for that chip version. Tested and works fine.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: sky2 FE+ receive status workaround

2007-09-28T03:32:28+00:00

The Yukon FE+ chip appears to have a hardware glitch that causes bogus
receive status values to be posted. The data in the packet is good, but
the status value is random garbage.  As a temporary workaround until the
problem is better understood, implement the workaround the vendor driver
used of ignoring the status value on this chip.

Since this means trusting dodgy hardware values; add additional checking
of the receive packet length.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: be more selective about FIFO watchdog

2007-09-25T04:04:17+00:00

Be more selective about when to enable the ram buffer watchdog code.
It is unnecessary on XL A3 or later revs, and with Yukon FE
the buffer is so small (4K) that the watchdog detects false positives.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: FE+ Phy initialization

2007-09-25T04:04:17+00:00

One more snippet of PHY initialization required for FE+ chips.
Discovered in latest sk98lin 10.21.1.3 driver.

Please apply to 2.6.23.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: version 1.18

2007-09-20T19:23:00+00:00

Update version number

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: receive FIFO checking

2007-09-20T19:23:00+00:00

A driver writer from another operating system hinted that
the versions of Yukon 2 chip with rambuffer (EC and XL) have
a hardware bug that if the FIFO ever gets completely full it
will hang. Sounds like a classic ring full vs ring empty wrap around
bug.

As a workaround, use the existing watchdog timer to check for
ring full lockup.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: fe+ chip support

2007-09-20T19:23:00+00:00

Add support for newest Marvell chips.
The Yukon FE plus chip is found in some not yet released laptops.
Tested on hardware evaluation boards.

This version of the patch is for 2.6.23. It supersedes
the two previous patches that are sitting in netdev-2.6 (upstream branch).

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik

sky2: reorganize chip revision features

2007-09-20T19:23:00+00:00

This patch should cause no functional changes in driver behaviour.
There are (too) many revisions of the Yukon 2 chip now. Instead of
adding more conditionals based on chip revision; rerganize into a
set of feature flags so adding new versions is less problematic.

Signed-off-by: Stephen Hemminger 
Signed-off-by: Jeff Garzik