My understanding of the resource management in the Linux 2.6 device
driver model is that the devices should declare their resources, and
then when a driver attaches to a device, it should request the
resources it will be using, so as to mark them busy. This is how the
PCI and PNP subsystems work, you can clearly see the two levels of
resources (declaration and request) in /proc/ioports for these
devices.
So I believe that our platform hardware monitoring drivers should
follow the same logic. At the moment, we only declare the resources
but we do not request them. This patch adds the I/O region request
and release calls.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Juerg Haefliger <juergh@gmail.com>
The new SMSC LPC47M292 Super-I/O chip includes a hardware monitoring
block which is compatible with those of the LPC47M192.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hartmut Rick <linux@rick.claranet.de>
Eric Dumazet, thank you for disclosing this bug.
Readahead logic somehow fails to populate the page range with data.
It can be because
1) the readahead routine is not always called in the following lines of
fs/splice.c:
if (!loff || nr_pages > 1)
page_cache_readahead(mapping, &in->f_ra, in, index, nr_pages);
2) even called, page_cache_readahead() wont guarantee the pages are there.
It wont submit readahead I/O for pages already in the radix tree, or when
(ra_pages == 0), or after 256 cache hits.
In your case, it should be because of the retried reads, which lead to
excessive cache hits, and disables readahead at some time.
And that _one_ failure of readahead blocks the whole read process.
The application receives EAGAIN and retries the read, but
__generic_file_splice_read() refuse to make progress:
- in the previous invocation, it has allocated a blank page and inserted it
into the radix tree, but never has the chance to start I/O for it: the test
of SPLICE_F_NONBLOCK goes before that.
- in the retried invocation, the readahead code will neither get out of the
cache hit mode, nor will it submit I/O for an already existing page.
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Use local-mac-address in the device tree instead. Fall back to mac-address
for older firmware.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add msglevel support for pasemi_mac. Move the MODULE_* defines to the
top to go together with the variable (similar to tg3).
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Logic cleanup and some performance enhancements to the RX path.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Remove some unused defines
* Fix a couple of wrong chip register defines, and add a few more fields
that might be used in the near future.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add a copy-break and recycle the SKB in the driver for small packets.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Timer and interrupt fixes:
* Be pickier with what kind of interrupts are acked to avoid the device to
get out of sync with the driver state
* Set RX count threshhold to 1 (for NAPI interrupted mode), TX count
threshold to 32.
* Set timer thresholds to current max (~16ms).
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Abstract out (and fix up) the interrupt restart routines, making
sure we start out in a consistent state.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fixes for ethernet IRQ mapping, to be done in the driver instead of in
the platform setup code.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This will allow concentrating all input devices in one place
in {menu|x|q}config.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
This will allow concentrating all input devices in one place
in {menu|x|q}config.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
This will allow concentrating all input devices in one place
in {menu|x|q}config.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
This will allow concentrating all input devices in one place
in {menu|x|q}config.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
This will allow concentrating all input devices in one place
in {menu|x|q}config.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
The i8042 driver fails detection of the AUX port with some chips,
because they apparently do not change the I8042_CTR_AUXDIS bit
immediately. This is known to affect at least HP500/HP510 notebooks,
consequently the built-in touchpad will not work. The patch will simply
reread the value until it gets the expected value or a retry limit is
hit, without touching other workaround code in the same area.
Signed-off-by: Roland Scheidegger <sroland@tungstengraphics.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The order that the two 32-bit words written to the Hash Address (Low,
High) Registers for matching of multicast addresses is incorrect.
Signed-off-by: Lars Reemts <Lars.Reemts@entwicklung.eq-3.de>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add support for a number of new PHY's in the AT91RM9200 Ethernet driver.
- Teridian 78Q21x3
- SMSC LAN83C185
(Patch from Luca Gamma)
- National Semiconductor DP83848
(Patches from Ivan Kuten & Thomas Foldesi)
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This fixes the regression in 2.6.21 for users with 88e8056 on motherboard.
Allow all but the Gigabyte motherboard has some unresolved bus problems.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Those boards do not need CONFIG_ISA if the ne driver could be
selectable without it. Disable it and update a defconfig.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch lets RBTX49XX boards use generic platform_driver interface
for the ne driver.
* Use platform_device to pass ioaddr and irq to the ne driver.
* Remove unnecessary ifdefs for RBTX49XX from the ne driver.
* Make the ne driver selectable on these boards regardless of CONFIG_ISA
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add NEEDS_PORTLIST cpp macro to control ISA auto-probe.
(I'm not sure M32R needs auto-probe but it is current behavior)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Miscellaneous fixes to make ne platform driver work properly.
* Make ioaddr 'unsigned long'.
* Move a printk down to show dev->name assigned in register_netdev.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add a platform_driver interface to ne driver.
(Existing legacy ports did not covered by this ne_driver for now)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
There can still be other contexts that may use page flipping later on, so do
just unilaterally 'clean it up', which could lead to the wrong page being
displayed, e.g. when running 3D apps with a GLX compositing manager such as
compiz using page flipping.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Need to change the libertas Kconfig entry to match changes made for
other wireless drivers.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use dev_printk macros for PCI related errors, warnings, debug and info
console messages.
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
radeon: make PCI GART aperture size variable, but making table size variable
This is precursor to getting a TTM backend for this stuff, and also
allows the PCI table to be allocated at fb 0
radeon: add support for reverse engineered xpress200m
The IGPGART setup code was traced using mmio-trace on fglrx by myself
and Phillip Ezolt <phillipezolt@gmail.com> on dri-devel.
This code doesn't let the 3D driver work properly as the card has no
vertex shader support.
Thanks to Matthew Garrett + Ubuntu for providing me some hardware to do this
work on.
Signed-off-by: Dave Airlie <airlied@linux.ie>
s390: qeth driver hardware specs adaptions
- according to the latest OSA hardware specification
incorporate actual IPA command and return codes into qeth.
- whitespaces removed from qeth_mpc.h
Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
don't remove an entry from iucv_connection_list in netiucv_exit().
netiucv_free_netdevice is called anyway, which takes care of entry
removal.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Free sent skbs in some finite amount of time. Affected are
asynchronous queue of Hipersockets devices and the output
queues of all eth-devices respectively.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Frank Pavlic <fpavlic@de.ibm.com>
Connection hangs when using EDDP mode because sk_protocol is NULL
when skb has been copied via skb_copy. This results in dropping
packets.
Also keep MAC address after recovery of Virtual NICs so that
traffic can flow again and duplicate statements in
qeth_dev_set_route_store removed.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The natsemi driver contains a workaround for broken hardware which can
partially reset the chip at unpredictable times, detected by checking for
spontaneous changes in the DspCfg register. The effects of the hardware
bug appear to be variable and can range from minor problems like small
numbers of corrupted packets to major ones such as the chip becoming
non-functional. In the case of minor problems the chip reconfiguration
required to work around the hardware can cause more problems than the bug
itself.
Since we have no way of automatically determining how badly the problem
manifests on any given system provide an option in sysfs allowing users to
disable the workaround at runtime and provides a module option to set the
default.
Signed-Off-By: Mark Brown <broonie@sirena.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The natsemi driver has a workaround for broken hardware which resets itself
from time to time. There is a diagnostic message for this workaround but
it is not printed by default, making the driver behavior more obscure than
it needs to be. Make the message be displayed by default.
Signed-Off-By: Mark Brown <broonie@sirena.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch supports SuperH of smc91x.
smc91x installed on the board of SuperH comes to work by applying this patch.
Please apply this patch .
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The DM9000 network driver is calling kfree() on an netdev
causing the system to oops if the probe fails. The right
thing to do is call free_netdev().
Thanks to Russell King for spotting this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
