Commit Graph

51 Commits

Author SHA1 Message Date
Dmitriy Monakhov 90afd0e574 Broadcom 4400 resume small fix
Some issues in b44_resume().

- Return value of pci_enable_device() was ignored.

- If request_irq() has failed we have to just disable device and exit.

Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-30 09:36:02 -05:00
Al Viro 00576e9380 b44: src_desc->addr is little-endian
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-30 09:36:02 -05:00
Michael Chan 5fc7d61aee b44: Fix frequent link changes
This fixes the issue of frequent link changes under heavy traffic reported
below:

http://bugzilla.kernel.org/show_bug.cgi?id=7696
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216338

The b44 chip occasionally needs to be reset when ISTAT_ERRORS are
encountered.  The reset sequence includes a PHY reset that will take many
seconds to complete and cause the link to go down and up.  By skipping the
PHY reset, it will greatly reduce the interruption when ISTAT_ERRORS are
encountered.

Change the full_reset parameter to reset_kind parameter in b44_init_hw().
This will allow PHY reset to be skipped when ISTAT_ERRORS are encountered.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-30 09:36:01 -05:00
Francois Romieu d15e9c4d9a netpoll: drivers must not enable IRQ unconditionally in their NAPI handler
net/core/netpoll.c::netpoll_send_skb() calls the poll handler when
it is available. As netconsole can be used from almost any context,
IRQ must not be enabled blindly in the NAPI handler of a driver which
supports netpoll.

b57bd06655 fixed the issue for the
8139too.c driver.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-26 16:24:11 -05:00
Johannes Berg e78181feb0 [PATCH] b44: change comment about irq mask register
Through some experimentation with the similarly built bcm43xx I came to
the conclusion that if the hw/firmware sets a bit in the interrupt
register, an interrupt will only be raised if that bit is included in
the interrupt mask. Hence, the interrupt mask is more like an interrupt
control mask.

This patch changes the comment to reflect that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-07 04:27:51 -05:00
Michael Buesch 6f62768344 [PATCH] b44: fix eeprom endianess issue
This fixes eeprom read on big-endian architectures.

readw returns the data in CPU order.  With cpu_to_le16 we convert it to little
endian, because "ptr" is a pointer to a _byte_ arrray.  See the cast above.  A
byte array is little endian.

The bug is:

Reading u16 values with readw, casting them into an u8 array and accessing
this u8 array as an u8 (byte) array.  The correct fix is to swap the
CPU-ordering value returned by readw into little endian, as the u8 array is
little endian.

This compiles to nothing on little endian hardware (so it does not change b44
code on LE hardware), but _fixes_ code on BE hardware.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-11 03:56:33 -04:00
Jeff Garzik 24fcbacedb Merge branch 'master' into upstream-fixes 2006-10-11 03:56:12 -04:00
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 2f614fe04f [netdrvr] b44: handle excessive multicast groups
If there are more than B44_MCAST_TABLE_SIZE groups in the dev->mc_list,
it will only listen to the first B44_MCAST_TABLE_SIZE that it sees.

This change makes the driver go into RXCONFIG_ALLMULTI mode if there
are more than B44_MCAST_TABLE_SIZE groups being subscribed to, similar
to other network drivers.

Noticed by Bill Helfinstine <bhelf@flitterfly.whirpon.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-05 07:10:38 -04:00
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 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 9b91cf9daa [netdrvr] use dev_xxx() printk helpers, rather than dev_printk(KERN_xxx, ...
Suggested by Jiri Slaby.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 13:42:57 -04:00
Jeff Garzik 2e8a538d86 [netdrvr] Use dev_printk() when ethernet interface isn't available
For messages prior to register_netdev(), prefer dev_printk() because
that prints out both our driver name and our [PCI | whatever] bus id.

Updates: 8139{cp,too}, b44, bnx2, cassini, {eepro,epic}100, fealnx,
	 hamachi, ne2k-pci, ns83820, pci-skeleton, r8169.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 13:42:07 -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
Gary Zambrano 4d1dabdb52 [PATCH] b44: update version to 1.01
Update the driver version to 1.01

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:16:13 -04:00
Gary Zambrano 725ad800b7 [PATCH] b44: add wol for old nic
This patch adds wol support for the older 440x nics that use pattern matching.
This patch is a redo thanks to feedback from Michael Chan and Francois Romieu.

Signed-off-by: Gary Zambrano  <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:16:13 -04:00
Gary Zambrano 00e8b3aa1c [PATCH] b44: add parameter
This patch adds a parameter to init_hw() to not completely initialize
the nic for wol.

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:16:13 -04:00
Gary Zambrano 52cafd9655 [PATCH] b44: add wol
Adds wol to the driver.
This is a redo of a previous patch thanks to feedback from Francois Romieu.

Signed-off-by Gary Zambrano <zambrano@broadcom.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:16:13 -04:00
Gary Zambrano 47b9c3b1e6 [PATCH] b44: fix manual speed/duplex/autoneg settings
Fixes for speed/duplex/autoneg settings and driver settings info.
This is a redo of a previous patch thanks to feedback from Jeff Garzik.

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:16:13 -04:00
Andi Kleen 639b421b91 [PATCH] x86_64: Check for bad dma address in b44 1GB DMA workaround
Needed for interaction with the nommu code in x86-64 which
will return bad_dma_address if the address exceeds dma_mask.

Cc: netdev@vger.kernel.org
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-16 07:59:31 -07:00
Jeff Garzik 10badc2154 [netdrvr b44] trim trailing whitespace 2006-04-12 18:04:32 -04:00
Gary Zambrano 8056bfafb8 [PATCH] b44: increase version to 1.00
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-12 18:04:03 -04:00
Gary Zambrano 2b474cf538 [PATCH] b44: disable default tx pause
Disable default tx pause frame support.
The b44 controller has a bug that generates excessive tx pause
frames.

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-12 18:04:03 -04:00
Eric Sesterhenn 5d9428de1a BUG_ON() Conversion in drivers/net/
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02 13:52:48 +02:00
Gary Zambrano 391fc09a14 [PATCH] b44: ensure valid mac addr
Added code to check for invalid MAC address from eeprom or user input.

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-29 17:34:02 -05:00
Gary Zambrano 5c5131297d b44: fix force mac address before ifconfig up
Initializing the b44 MAC & PCI functional blocks in the controller must
occur inside init_one(). This will allow access to the MAC registers.
The controller was being powered up in b44_open() which would not allow
access to the registers before ifconfig was up.
Philip Kohlbecher found this bug.

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
2006-03-29 17:12:05 -05:00
Stephen Hemminger c35ca399e0 [PATCH] b44: fix laptop carrier detect
On my laptop, the b44 device is created and the carrier state defaults
to ON when created by alloc_etherdev. This means tools like NetworkManager
see the carrier as On and try and bring the device up.  The correct thing
to do is mark the carrier as Off when device is created.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-26 22:10:39 -05:00
Alan Cox 22d4d77183 [PATCH] Fix warning with b44.c on 64bit boxes
sizeof() return is not an int, so use max_t to get the types right.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-17 19:28:50 -05:00
Francois Romieu 981d9c176d b44: increase version number
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2005-11-30 22:35:39 +01:00
Francois Romieu 3410572d51 b44: early return in dev->do_ioctl when the device is not up
The device has not gone through a whole reset/init sequence until the
device is up. Accessing the mii interface before this point is not
safe.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2005-11-30 22:32:13 +01:00
Mark Lord d9e2d185bf b44: missing netif_wake_queue() in b44_open()
This patch fixes a problem plaguing Dell notebooks with built-in b44
ethernet: The driver refuses to transmit packets of any kind until after
the first 5-second tx_timeout occurs. This bug causes DHCP negotiation to
fail (timeout) during installation of Ubuntu Linux.

Signed-off-by: Mark Lord <lkml@rtr.ca>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2005-11-30 22:30:23 +01:00
Linus Torvalds a7c243b544 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-11-09 08:34:36 -08:00
Olaf Hering 733482e445 [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
This patch removes almost all inclusions of linux/version.h.  The 3
#defines are unused in most of the touched files.

A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.

There are also lots of #ifdef for long obsolete kernels, this was not
touched.  In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.

quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:57 -08:00
Francois Romieu eac1dfcb32 [PATCH] b44: increase version number
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-09 01:02:41 -05:00
Francois Romieu ba5eec9c55 [PATCH] b44: race on device closing
Usual fix:
- b44_interrupt() does not schedule NAPI polling when the device is
  going down;
- b44_close() waits for any scheduled NAPI polling before it starts
  to release the private structures of the device.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-09 01:02:41 -05:00
Francois Romieu b9dcbb40f4 [PATCH] b44: replace B44_FLAG_INIT_COMPLETE with netif_running()
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-09 01:02:41 -05:00
Francois Romieu 6c2f426783 [PATCH] b44: late request_irq in b44_open
Don't request_irq before the registers are reset/init.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-07 03:37:05 -05:00
Francois Romieu 65b984f26f [PATCH] b44: s/spin_lock_irqsave/spin_lock/ in b44_interrupt
There is no need to save/restore the irq state as the irq are always
locally disabled when b44_interrupt is issued.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-07 03:37:05 -05:00
Francois Romieu 3353930d9d [PATCH] b44: expose counters through ethtool
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-07 03:37:05 -05:00
Francois Romieu 874a6214bc [PATCH] b44: miscellaneous cleanup
- remove unneeded forward declarations
- s/kmalloc + memset/kzalloc/
- whitespace readjustement can't hurt
- wrong comment: b44_init_rings _is_ called with a spinlock held in
  b44_{open/set_ringparam/set_pauseparam/etc}.
  Actually, it does not need to be able to sleep
- b44_remove_one() can not be issued with a NULL device in its
  private member: remove the test.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-07 03:37:05 -05:00
Francois Romieu c719369350 [PATCH] b44: b44_start_xmit returns with a lock held when it fails allocating
The patch simply factors out the release of the lock.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-07 03:37:05 -05:00
Pavel Machek 46e1785358 [PATCH] b44: fix suspend/resume
Fix suspend/resume on b44 by freeing/reacquiring irq.  Otherwise it hangs
on resume.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-28 19:06:43 -04:00
Jesper Juhl b4558ea93d drivers/net: Remove pointless checks for NULL prior to calling kfree() 2005-10-28 16:53:13 -04:00
Andrew Morton 89358f90ab [netdrvr b44] include linux/dma-mapping.h to eliminate warning 2005-10-28 16:38:02 -04:00
Matthew Wilcox adf6e00064 [PATCH] b44 reports wrong advertised flags
Looks like someone used the MII constants instead of the ethtool constants.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-28 16:14:10 -04:00
John W. Linville 9f38c636ab [PATCH] b44: alternate allocation option for DMA descriptors
This is a (final?) hack to support the odd DMA allocation requirements
of the b44 hardware.  The b44 hardware has a 30-bit DMA mask.  On x86,
anything less than a 32-bit DMA mask forces allocations into the 16MB
GFP_DMA range.  The memory there is somewhat limited, often resulting
in an inability to initialize the b44 driver.

This hack uses streaming DMA allocation APIs in order to provide an
alternative in case the GFP_DMA allocation fails.  It is somewhat ugly,
but not much worse than the similar existing hacks to support SKB
allocations in the same driver.  FWIW, I have received positive
feedback on this from several Fedora users.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 22:27:13 -04:00
John W. Linville 2160de53cc [PATCH] b44: support ETHTOOL_GPERMADDR
Add support for ETHTOOL_GPERMADDR to b44.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-14 08:29:31 -04:00
Len Brown 5028770a42 [ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 17:21:56 -04:00
David Shaohua Li d58da59045 [ACPI] S3 Suspend to RAM: fix driver suspend/resume methods
Drivers should do this:

.suspend()
	pci_disable_device()

.resume()
	pci_enable_device()

http://bugzilla.kernel.org/show_bug.cgi?id=3469

Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:23:46 -04:00
John W. Linville e254e9bff5 [PATCH] b44: check link state during open
Check the link state during b44_open.  This closes a 1 HZ window
that existed after b44_open ran but before the b44_timer handler ran,
during which ethtool would report "Link detected: yes" no matter what
the link state actually was.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-06-27 00:46:40 -04:00