Commit Graph

14 Commits

Author SHA1 Message Date
Stephen Hemminger 6cdbbdf305 [PATCH] sky2: tx/rx ring data structure split
Split Tx and Rx ring into two different data structures.
Tx needs the next value (to handle partial status), and
Rx always needs the mapaddr (to handle resubmitting same buffer).

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-12 15:27:20 -05:00
Stephen Hemminger 734d186846 [PATCH] sky2: map length optimization
Don't need to keep track of mapping length in ring structure
because we can get the same info from other info.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-12 15:27:20 -05:00
Stephen Hemminger 91c86df5a8 [PATCH] sky2: phy processing in workqueue rather than tasklet
Do phy processing in a work queue rather than a tasklet.
This means we can let bottom halves run.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-12 15:27:20 -05:00
Stephen Hemminger 6e23231b65 [PATCH] sky2: device structure alignment
It is a useful optimization to rearrange the structure
slightly to align receive and transmit portions.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-12 15:27:20 -05:00
shemminger@osdl.org af4ed7e6ba [PATCH] sky2: remove pci-express hacks
Eliminate special case tuning for PCI-Express. This code
causes receive hangs and doesn't help performance much anyway.

Signed-off-by: Stephen Hemminger <shemmnger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:20:21 -05:00
shemminger@osdl.org 65497dacd8 [PATCH] sky2: byteorder annotation
Use byteorder annotation for hardware structures

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:20:20 -05:00
shemminger@osdl.org 5a5b1ea026 [PATCH] sky2: add Yukon-EC ultra support
Add support for Yukon-EC Ultra chip as implemented in SysKonnect's
driver version 8.26.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:20:20 -05:00
shemminger@osdl.org d571b694df [PATCH] sky2: spelling fixes
Cosmetic cleanup's: mostly spelling fixes etc.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-28 12:18:53 -04:00
shemminger@osdl.org 488f84fd90 [PATCH] sky2: remove unused definitions
The sky2 driver has a lot of register definitions, that were
copied over from the skge driver, for areas that don't exist
on the Yukon2.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-28 12:18:52 -04:00
shemminger@osdl.org 5afa0a9cfb [PATCH] sky2: explicit set power state
Add better power management, and power down the chip on device removal

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-28 11:52:57 -04:00
shemminger@osdl.org d1f1370863 [PATCH] sky2: add hardware VLAN acceleration support
Use the hardware to do VLAN.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-28 11:49:32 -04:00
Stephen Hemminger 79e57d32fe [PATCH] sky2: fix FIFO DMA alignment problems
The Yukon2 chip FIFO has a problem recovering from a pause frame
if the receive buffer is not aligned. The workaround is to just
leave receive buffer at original alignment, which will make IP
header unaligned. Rework receive logic for clarity.

Need to ignore receive overrun interrupts (or mac hangs).

These fixes make the sky2 driver generally usable.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-21 22:30:52 -04:00
Stephen Hemminger 793b883ed1 [PATCH] sky2: driver update.
Here is revised patch against netdev sky2 branch.
It includes whitespace fixes, all the changes from the previous
review as well as some optimizations and timing fixes to
solve some of the hangs.

The stall problem is better but not perfect. It appears that
under stress the chip can't keep up with the bus
and sends a pause frame, then hangs. This version is for
testing, and hopefully other eyes might see the root
cause of the problem.

I don't want to reinvent the ugly watchdog code in the syskonnect
version of sk98lin.  If you read it you will see, the original
driver writer and the hardware developer obviously didn't
understand each other.

Dual port support is included, but not tested yet. It did
require small change to NAPI since both ports share same
IRQ.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-16 02:48:03 -04:00
Stephen Hemminger cd28ab6a4e [PATCH] sky2: new experimental Marvell Yukon2 driver
New driver for the Marvell Yukon2 Gigabit Ethernet chipset.
This driver is based on the skge driver, but using the logic
from the SysKonnect version of the sk98lin driver.
It should support all the Yukon2 chipsets that are available
in many current Intel and AMD motherboards.

The driver does support ethtool, tx and rx checksum, and
tcp segmentation offload.  But it has only been tested for
a short while and is known to stop receiving under heavy load.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-17 00:53:12 -04:00