linux.git/drivers/net/acenic.h, branch master

3c*/acenic/typhoon: Move 3Com Ethernet drivers

2011-08-11T02:53:41+00:00

Moves the 3Com drivers into drivers/net/ethernet/3com/ and the necessary
Kconfig and Makefile changes.

Did not move the following drivers becuase they use a non-3Com
chipset: 3c503, 3c505, 3c507, 3c523 and 3c527

CC: Steffen Klassert 
CC: David Dillow 
CC: Jes Sorensen 
CC: Alan Cox 
CC: David Hinds 
Signed-off-by: Jeff Kirsher 
Acked-by: David Dillow

acenic: use netdev_alloc_skb_ip_align

2011-07-25T23:16:00+00:00

Take Eric's patch one step further.
Use netdev_skb_ip_align to do setup the receive skb.
Compile tested only.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

acenic: do vlan cleanup

2011-07-21T20:47:56+00:00

- unify vlan and nonvlan rx path
- kill ap->vlgrp and ace_vlan_rx_register
- enable vlan hw accel always (kill vlan ifdefs)

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

net: remove interrupt.h inclusion from netdevice.h

2011-06-07T05:55:11+00:00

* remove interrupt.g inclusion from netdevice.h -- not needed
* fixup fallout, add interrupt.h and hardirq.h back where needed.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: David S. Miller

acenic: use the dma state API instead of the pci equivalents

2010-04-02T01:38:33+00:00

The DMA API is preferred.

Signed-off-by: FUJITA Tomonori 
Signed-off-by: David S. Miller

netdev: convert bulk of drivers to netdev_tx_t

2009-09-01T08:14:07+00:00

In a couple of cases collapse some extra code like:
   int retval = NETDEV_TX_OK;
   ...
   return retval;
into
   return NETDEV_TX_OK;

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

firmware: convert acenic driver to request_firmware()

2009-01-05T00:10:02+00:00

We store the firmware in its native big-endian form now, so the loop in
ace_copy() is modified to use be32_to_cpup() when writing it out.

We can forget the BSS,SBSS sections of the firmware, since we were
clearing all the device's RAM anyway. And the text,rodata,data sections
can all be loaded as a single chunk since they're contiguous (give or
take a few dozen bytes in between).

Signed-off-by: Jaswinder Singh 
Signed-off-by: David Woodhouse 
Acked-by: Jes Sorensen 
Signed-off-by: David S. Miller

acenic: use netstats in net_device structure

2008-05-13T05:35:24+00:00

Use net_device_stats from net_device structure instead of local.
No need to memset it to 0, because it is allocated by kzalloc.

Signed-off-by: Paulius Zaleckas 
Signed-off-by: Jeff Garzik

network drivers: eliminate unneeded kill_vid code

2007-06-03T15:44:20+00:00

Many drivers had code that did kill_vid, but they weren't doing vlan
filtering. With new API the stub is unneeded unless device sets
NETIF_F_HW_VLAN_FILTER.

Bad habit: I couldn't resist fixing a couple of nearby style things
in acenic, and forcedeth.

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

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05T14:10:12+00:00

Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells 
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)