Commit Graph

16 Commits

Author SHA1 Message Date
Thomas Bogendoerfer 43831b1581 SGISEEQ: use cached memory access to make driver work on IP28
SGI IP28 machines would need special treatment (enable adding addtional
wait states) when accessing memory uncached. To avoid this pain I changed
the driver to use only cached access to memory.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:28 -08:00
Joe Perches 0795af5729 [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:42 -07:00
Jeff Garzik 09f75cd7bf [NET] drivers/net: statistics cleanup #1 -- save memory and shrink code
We now have struct net_device_stats embedded in struct net_device,
and the default ->get_stats() hook does the obvious thing for us.

Run through drivers/net/* and remove the driver-local storage of
statistics, and driver-local ->get_stats() hook where applicable.

This was just the low-hanging fruit in drivers/net; plenty more drivers
remain to be updated.

[ Resolved conflicts with napi_struct changes and fix sunqe build
  regression... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:16 -07:00
Ralf Baechle 99cd149efe sgiseeq: replace use of dma_cache_wback_inv
The sgiseeq driver is one of the few remaining users of the ancient
cache banging DMA API.  Replaced with the modern days DMA API.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:07 -07:00
Ralf Baechle e3efb05468 sgiseeq: Fix return type of sgiseeq_remove
The driver remove method needs to return an int not void.  This was just
never noticed because usually this driver is not being built as a module.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-25 02:31:13 -04:00
David S. Miller 8c7b7faaa6 [NET]: Kill eth_copy_and_sum().
It hasn't "summed" anything in over 7 years, and it's
just a straight mempcy ala skb_copy_to_linear_data()
so just get rid of it.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10 22:08:12 -07:00
Ralf Baechle df9f54084f Convert SGI IP22 and specific drivers to platform_device.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-05-11 17:00:29 +01:00
Ladislav Michl 78ee5b3cc8 Add support for Seeq 8003 on Challenge S Mezz board.
Thanks to Jö Fahlke for donating hardware.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

Forward porting of Ladis' 2.4 patch.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:00:56 -04:00
Arnaldo Carvalho de Melo d626f62b11 [SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}
To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-04-25 22:28:23 -07:00
Arnaldo Carvalho de Melo 4c13eb6657 [ETH]: Make eth_type_trans set skb->dev like the other *_type_trans
One less thing for drivers writers to worry about.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:30 -07:00
Ralf Baechle 92b0c4e240 sgiseeq: Don't include unnecessary headerfiles.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:21:25 -05:00
David Howells 7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
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 <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Ralf Baechle a4d4d5181d [PATCH] Sparse: Cleanup sgiseeq sparse warnings.
o Make sgiseeq_dump_rings static.
 o Delete unused sgiseeq_my_reset.
 o Move DEBUG define to beginning where it's easier to spot and will be
   seen by <linux/kernel.h> as well.
 o Use NULL for pointer initialization.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-11 20:32:17 -05:00
Ralf Baechle 302a5c4b3d [PATCH] sgiseeq: Configure PIO and DMA timing requests.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 drivers/net/sgiseeq.c       |   28 ++++++++++++++--------------
 include/asm-mips/sgi/hpc3.h |   40 ++++++++++++++++++++--------------------
 2 files changed, 34 insertions(+), 34 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 18:03:47 -04:00
Ralf Baechle 2891439e73 [PATCH] sgiseeq: Fix resource handling.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 drivers/net/sgiseeq.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 18:03:47 -04:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00