Commit Graph

8 Commits

Author SHA1 Message Date
Lennert Buytenhek
18ec5c7312 [ARM] 3373/1: move uengine loader to arch/arm/common
Patch from Lennert Buytenhek

Move the uengine loader from arch/arm/mach-ixp2000 to arch/arm/common
so that ixp23xx can use it too.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-21 22:06:16 +00:00
Stephen Hemminger
d359b6ff6a [PATCH] ixp2000: change netif_schedule_test to __netif_schedule_prep
Sky2 update changed name of netif_schedule_test to __netif_schedule_prep

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-03 20:29:03 -05:00
Lennert Buytenhek
127477840b [PATCH] ixp2000: add driver version, bump version to 0.2
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:25:27 -05:00
Lennert Buytenhek
8ce51d69b7 [PATCH] ixp2000: add netpoll support
Add netpoll support to the ixp2000 driver.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:25:27 -05:00
Lennert Buytenhek
7ed98bfdea [PATCH] ixp2000: report MAC addresses for each port on init
After initialising, report the MAC address that we're using for
each port.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:25:26 -05:00
Lennert Buytenhek
ee61249468 [PATCH] ixp2000: use netif_rx_schedule_test
The sky2 driver introduced netif_rx_schedule_test().  This is
exactly what we need, so remove our local version of this function
(which was called netif_rx_schedule_prep_notup) and use the generic
one instead.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:25:26 -05:00
Lennert Buytenhek
0c49919a47 [PATCH] ixp2000: register netdevices last
Do not register our netdevices with the kernel until we've actually
finished setting up the hardware and microcode.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:25:25 -05:00
Lennert Buytenhek
15d014d131 [PATCH] intel ixp2000 network driver
The way the hardware and firmware work is that there is one shared RX
queue and IRQ for a number of different network interfaces.  Due to this,
we would like to process received packets for every interface in the same
NAPI poll handler, so we need a pseudo-device to schedule polling on.

What the driver currently does is that it always schedules polling for
the first network interface in the list, and processes packets for every
interface in the poll handler for that first interface -- however, this
scheme breaks down if the first network interface happens to not be up,
since netif_rx_schedule_prep() checks netif_running().

sky2 apparently has the same issue, and Stephen Hemminger suggested a
way to work around this: create a variant of netif_rx_schedule_prep()
that does not check netif_running().  I implemented this locally and
called it netif_rx_schedule_prep_notup(), and it seems to work well,
but it's something that probably not everyone would be happy with.

The ixp2000 is an ARM CPU with a high-speed network interface in the
CPU itself (full duplex 4Gb/s or 10Gb/s depending on the IXP model.)
The CPU package also contains 8 or 16 (again depending on the IXP
model) 'microengines', which are somewhat primitive but very fast
and efficient processor cores which can be used to offload various
things from the main CPU.

This driver makes the high-speed network interface in the CPU visible
and usable as a regular linux network device.  Currently, it only
supports the Radisys ENP2611 IXP board, but adding support for other
board types should be fairly easy.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-18 13:32:22 -05:00