Commit Graph

28 Commits

Author SHA1 Message Date
Randy Dunlap bca79eb7e7 [PATCH] sundance: use NULL for pointer
Use NULL instead of 0 for pointers (cures sparse warnings).

drivers/net/sundance.c:1106:16: warning: Using plain integer as NULL pointer
drivers/net/sundance.c:1652:16: warning: Using plain integer as NULL pointer

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-02 00:16:36 -05:00
Jesse Huang 31f817e9d6 [PATCH] sundance: solve host error problem in low performance embedded system when continune down and up
Solve host error problem in low performance embedded system when continune
down and up.  It will cause IP100A DMA TargetAbort.  So we need more safe
process to up and down IP100A with wait hardware completely stop and software
cur_tx/ dirty_tx/cur_task/last_tx be clear.

Signed-off-by: Jesse Huang <jesse@icplus.com.tw>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-02 00:12:03 -05:00
Jesse Huang acd70c2bfd [PATCH] sundance: correct initial and close hardware step.
Correct initial and close hardware step.  In some embedded system down and up
IP100A will cause DMA crash.  We add some for safe down and up IP100A.

Signed-off-by: Jesse Huang <jesse@icplus.com.tw>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-02 00:12:02 -05:00
Jesse Huang 2109f89f34 [PATCH] subdance: fix TX Pause bug (reset_tx, intr_handler)
Fix TX Pause bug (reset_tx, intr_handler).  When MaxCollisions occurred, need
to re-enable Tx.  But just after re-enable, MaxCollisions maybe occurred again
and with TxStatusOverflow.  This will cause driver can't check new
MaxCollisions to re-enable Tx again, because TxStatusOverflow.  For this
reason, after re-enable Tx, we need to make sure Tx was actually enabled.

Signed-off-by: Jesse Huang <jesse@icplus.com.tw>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-02 00:12:02 -05:00
Jesse Huang e242040df1 [PATCH] sundance: remove TxStartThresh and RxEarlyThresh
For patent issue need to remove TxStartThresh and RxEarlyThresh.  This patent
is cut-through patent.  If use this function, Tx will start to transmit after
few data be move in to Tx FIFO.  We are not allow to use those function in
DFE530/DFE550/DFE580/DL10050/IP100/IP100A.  It will decrease a little
performance.

Signed-off-by: Jesse Huang <jesse@icplus.com.tw>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-02 00:12:02 -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
Jeff Garzik 7282d491ec drivers/net: const-ify ethtool_ops declarations
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13 14:30:00 -04:00
Jeff Garzik 6aa20a2235 drivers/net: Trim trailing whitespace
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13 13:24:59 -04:00
Jeff Garzik 4e83b7fad8 Merge branch 'tmp' into upstream 2006-09-12 11:45:33 -04:00
Andy Gospodarek d5b20697ca [PATCH] Remove more unnecessary driver printk's
As I promised last week, here is the first pass at removing all
unnecessary printk's that exist in network device drivers currently in
promiscuous mode.  The duplicate messages are not needed so they have
been removed.  Some of these drivers are quite old and might not need an
update, but I did them all anyway.

I am currently auditing the remaining conditional printk's and will send
out a patch for those soon.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-12 11:45:19 -04:00
Jeff Garzik 299176206b drivers/net: Remove deprecated use of pci_module_init()
From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>

Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-19 17:48:59 -04:00
Jeff Garzik 846050dd49 Merge branch 'upstream-fixes' into upstream 2006-08-19 17:45:11 -04:00
Andrew Morton 3418e469eb [PATCH] sundance section fix
drivers/net/sundance.c:110: error: version causes a section type conflict

I don't understand this error.  It's referred to from both __init and
__devinit code.  With CONFIG_HOTPLUG=n, version[] is placed in .init.data and
is referred to from .init.text.

Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-19 17:44:28 -04:00
Philippe De Muyter e714d99cac [PATCH] sundance: small cleanup
This patch uses the sundance_reset function everywhere a reset is done,
and adds a link to the archives of the original mailing list.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-09 00:02:46 -04:00
Jeff Garzik 46009c8bcd [netdrvr] minor cleanups in Becker-derived drivers
- fealnx: convert #define to enum
- fealnx, sundance: mark chip info table __devinitdata
- fealnx: use dev_printk() during probe
- fealnx: formatting cleanups
- starfire: remove obsolete comment
- sundance, via-rhine: add some whitespace where useful, in tables
- sundance: prefer "{ }" table terminator
- via-rhine: mark PCI probe table const

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 13:40:50 -04:00
Jeff Garzik 03a8c6611a [netdrvr] Remove Linux-specific changelogs from several Becker template drivers
When in-kernel net drivers branched from Donald Becker's vanilla driver
set, in the days before BitKeeper and git, a driver changelog was
maintained in the driver source code.  These days, the kernel's
changelog is far superior and much more accurate, so the in-driver
changelogs are removed.

Another relic of the Becker/kernel split was version numbering, using
"foo-LKx.y.z" notation, resulting in weird version numbers like
"1.17b-LK1.1.9".  These drivers are for older hardware, and see few
changes these days, so the version numbers were all bumped to something
more simple.

Finally, in xircom_tulip_cb specifically, an additional cleanup removes
the always-enabled CARDBUS cpp macro.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 13:40:49 -04:00
Thomas Gleixner 1fb9df5d30 [PATCH] irq-flags: drivers/net: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:51 -07:00
Pedro Alejandro López-Valencia 1668b19f75 sundance: PCI ID for ip100a
Patch provided by Pedro Alejandro López-Valencia in
http://bugzilla.kernel.org/show_bug.cgi?id=6691

The patch is derived from IC+ GPL'ed rework of sundance driver
available at http://www.icplus.com.tw/pp-IP100A.html

Patch closes http://bugzilla.kernel.org/show_bug.cgi?id=5858 as well.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Pedro Alejandro López-Valencia <palopezv@gmail.com>
2006-06-15 23:02:00 +02:00
Jeff Garzik 46153552b4 Merge branch 'net-const' 2006-03-03 22:22:45 -05:00
Arjan van de Ven f71e130966 Massive net driver const-ification. 2006-03-03 21:33:57 -05:00
Arnaldo Carvalho de Melo 0d615ec2bb sundance: Really read addr 0
Make phy 0 actually be read, as it is not being right now as we have:

              int mii_status = mdio_read(dev, phy, MII_BMSR);
              int phyx = phy & 0x1f;

When we should have instead:

              int phyx = phy & 0x1f;
              int mii_status = mdio_read(dev, phyx, MII_BMSR);

so that when phy, in the end of the (phy = 1; phy <= 32...) loop gets
to 32 phyx gets to 0, i.e. we were reading at 32, when the intended
read was for 0.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-26 22:01:38 -05:00
Philippe De Muyter b71b95efa5 [PATCH] sundance: fix DFE-580TX Tx Underrun
Under heavy PCI bus load, ports of the DFE-580TX 4-ethernet port board stop
working, with currently no other cure than a powercycle.  Here is a tested
fix.  By the way, I also fixed some references and attribution.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-28 16:40:33 -04:00
John W. Linville b06c093ed2 [PATCH] sundance: include MII address 0 in PHY probe
Include MII address 0 at the end of the PHY scan.  This covers the
entire range of possible MII addresses.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-20 10:05:36 -04:00
John W. Linville 2aa1d82db7 [PATCH] sundance: expand reset mask
Expand the mask used when reseting the chip to include the GlobalReset
bit.  This fix comes from ICPlus and seems to be required for some
cards.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 22:29:14 -04:00
John W. Linville 67ec2f805a [PATCH] sundance: remove if (1) { ... } block in sundance_probe1
Remove an if (1) { ... } block in sundance_probe1.  Its purpose seems
to be only to allow for delaring some extra local variables.  But, it also
adds ugly indentation without adding any meaning to the code.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 22:29:14 -04:00
John W. Linville 30d60a8288 [PATCH] sundance: support ETHTOOL_GPERMADDR
Add support for ETHTOOL_GPERMADDR to sundance.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-14 08:30:02 -04:00
David S. Miller 689be43945 [NET]: Remove gratuitous use of skb->tail in network drivers.
Many drivers use skb->tail unnecessarily.

In these situations, the code roughly looks like:

	dev = dev_alloc_skb(...);

	[optional] skb_reserve(skb, ...);

	... skb->tail ...

But even if the skb_reserve() happens, skb->data equals
skb->tail.  So it doesn't make any sense to use anything
other than skb->data in these cases.

Another case was the s2io.c driver directly mucking with
the skb->data and skb->tail pointers.  It really just wanted
to do an skb_reserve(), so that's what the code was changed
to do instead.

Another reason I'm making this change as it allows some SKB
cleanups I have planned simpler to merge.  In those cleanups,
skb->head, skb->tail, and skb->end pointers are removed, and
replaced with skb->head_room and skb->tail_room integers.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
2005-06-28 15:25:31 -07:00
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