Adds RapidIO enumeration/discovery.
The core code implements enumeration/discovery, management of
devices/resources, and interfaces for RIO drivers.
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Adds a RapidIO subsystem to the kernel. RIO is a switched fabric interconnect
used in higher-end embedded applications. The curious can look at the specs
over at http://www.rapidio.org
The core code implements enumeration/discovery, management of
devices/resources, and interfaces for RIO drivers.
There's a lot more to do to take advantages of all the hardware features.
However, this should provide a good base for folks with RIO hardware to start
contributing.
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
If a panic came from the IPMI watchdog pretimeout and that was reported via
an NMI, it would also be reported via the standard IPMI flags, which would
get picked up when reporting panic events and cause another panic. This
adds an atomic to avoid calling panic twice.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Use rcu_read_lock for the cmd_rcvrs list, since that was what what
intended, anyway. This means that all the users of the cmd_rcvrs_lock are
tasks, so the irq disables are no longer required for that lock and it can
become a semaphore.
Signed-off-by: Corey Minyard <minyard@acm.org>
Acked-by: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Convert ipmi driver thread to kthread API, only sleep when interface is
idle.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We must poll for responses to commands when interrupts aren't in use. The
default poll interval is based on using a kernel timer, which varies with HZ.
For character-based interfaces like KCS and SMIC though, that can be way too
slow (>15 minutes to flash a new firmware with KCS, >20 seconds to retrieve
the sensor list).
This creates a low-priority kernel thread to poll more often. If the state
machine is idle, so is the kernel thread. But if there's an active command,
it polls quite rapidly. This decrease a firmware flash time from 15 minutes
to 1.5 minutes, and the sensor list time to 4.5 seconds, on a Dell PowerEdge
x8x system.
The timer-based polling remains, to ensure some amount of responsiveness even
under high user process CPU load.
Checking for a stopped timer at rmmod now uses atomics and del_timer_sync() to
ensure safe stoppage.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
BMCs can get into ERROR0 state while flashing new firmware, particularly while
the BMC is erasing the next flash block, which may take a just under 2 seconds
on a Dell PowerEdge 2800 (1.75 seconds typical), during which time the
single-threaded firmware may not be able to process new commands. In
particular, clearing OBF may not take effect immediately.
We want it to delay in ERROR0 after clearing OBF a bit waiting for OBF to
actually be clear before proceeding.
This introduces a new return value from the LLDD's event loop,
SI_SM_CALL_WITH_TICK_DELAY. This means the calling thread/timer should
schedule_timeout() at least 1 tick, rather than busy-wait. This is a longer
delay than SI_SM_CALL_WITH_DELAY, which is typically a 250us busy-wait.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The current BT retry/reset mechanism fails to succeed on a PowerEdge 1650,
when the controller is wedged with B2H_ATN asserted at XACTION_START. If this
occurs, no further commands will ever succeed unless the state of the
controller is first cleared out.
Furthermore, the soft reset would only occur if the first command after insmod
was the one that timed out, not if a later command timed out.
This patch changes the retry/reset mechanism to be as follows:
Before retrying a command, clear the state of the BT controller such that the
flags represent ready for a new transaction. This increases the chance of
success of the restarted transaction.
After 2 retries, issue a soft reset and retry one more time before giving up
and reporting back a failure.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Rocky Craig <rocky.craig@hp.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Some commands, on some system BMCs, don't respond at at all. This is seen on
Dell PowerEdge x6xx and x7xx systems with IPMI 1.0 BT controllers when a "Get
SDR" command is issued, with a length field of 0x3A, which happens to be the
length of about SDR entries. If another length is passed, this command
succeeds.
This patch adds general infrastructure for receiving commands before they're
passed down to the low-level drivers, such that they can be completed
immediately, or modified, prior to being sent to ->start_transaction().
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Make SMIC driver ignore EVT_AVAIL and SMS_ATN bits in flags register, as
they're used by systems management interrupts, not the host OS.
Make the OEM0 Data Available handler work for pre-IPMI 1.5 systems from Dell
too.
Without these two fixes, PowerEdge 2650 and other similar systems with SMIC
may hang a process (modprobe or anything using /dev/ipmi0).
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Make module_param and MODULE_PARAM_DESC agree on poweroff_powercycle name.
There was an extraneous ifdef in the IPMI poweroff code that prevented it from
working if PROC_FS was disabled.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Modify the IPMI watchdog parameters (the ones that make sense) to be exported
from sysfs. This is somewhat complicated because these parameters have
side-effects that must be handled.
Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
A number of small changes for the various system interface drivers,
consolidated from a number of patches from Matt Domsch.
Clear B2H_ATN and drain the BMC message buffer on command timeout. This
prevents further commands from failing after a timeout.
Add bt_debug and smic_debug module parameters, expose them in sysfs. This
lets you enable and disable debugging messages at runtime.
Unsigned jiffies math in ipmi_si_intf.c causes a too-large value to be passed
to ->event() after jiffies wrap-around. The BT driver had caught this, but
didn't know how to fix it. Now all calls to ->event() use a sane value for
time.
Increase timeout for commands handed to the BT driver from 2 seconds to 5
seconds. This is necessary particularly when the previous command was a
"Clear SEL", as that command completes, yet the BMC isn't really ready to
handle another command yet.
Silence BT debugging messages which were being printed on the console.
Increase SMIC timeout form 1/10s to 2s. This is needed on Dell PowerEdge 2650
and PowerEdge 750 with ERA/O cards to allow commands to complete without
timing out.
Adds kcs_debug module param, to match behavior of BT and SMIC. This also
prevents messages from being sent to the console unless explicitly requested.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch is rather large, but it really can't be done in smaller chunks
easily and I believe it is an important change. This has been out and tested
for a while in the latest IPMI driver release. There are no functional
changes, just changes as necessary to convert the locking over (and a few
minor style updates).
The IPMI driver uses read/write locks to ensure that things exist while they
are in use. This is bad from a number of points of view. This patch removes
the rwlocks and uses refcounts and RCU lists to manage what the locks did.
Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Introduce the notion of cooperating processes (those that submit requests
close to one another), and use these statistics to make better choices about
whether or not to do anticipatory waiting.
Help and analysis from Seetharami Seelam <seelam@cs.utep.edu>
Performance testing from Seelam:
I set up my system and executed a couple of tests that I used for OLS. I
tested with AS, cooperative process patch merged in -mm tree (which I called
Nick, below) and the cooperative patch with modifications to as_update_iohist
(which I called Seelam).
I used a dual-processor (2.28GHz Pentium 4 Xeon) system, with 1 GB main memory
and 1 MB L2 cache, running Linux 2.6.9. Only a single processor is used for
the experiments. I used 7.2K RPM Maxtor 10GB drive configured with ext2 file
system.
Experiment 1 (ex1) consists of reading one Linux source trees using
find . -type f -exec cat '{}' ';' > /dev/null.
Experiment 2 (ex2) consists of reading two disjoint Linux source trees
using
find . -type f -exec cat '{}' ';' > /dev/null.
Experiment 3 (ex3) consists of streaming read of a 2GB file in the background
and 1 instance of the chunk reads in Experiment 1.
Timings for reading the Linux source are shown below:
AS Nick Seelam
ex1: 0m25.813s 0m27.859s 0m27.640s
ex2: 1m11.468s 1m13.918s 1m5.869s
ex3: 81m44.352s 10m38.572s 6m47.994s
The difference between the numbers in Experiment 3 must be due to the code in
as_update_iohist. (akpm: that's not part of this patch. So this patch is
"Nick").
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix more include file problems that surfaced since I submitted the previous
fix-missing-includes.patch. This should now allow not to include sched.h
from module.h, which is done by a followup patch.
Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Mikael Pettersson <mikpe@csd.uu.se> noted that the current 2.6-git (and 2.4)
patch to disallow KDSKBSENT for unpriviledged users should be less restrictive
allowing reading of current function key string entry, but not writing.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch has the changes to support the memory floor fix done in Dell
BIOS. The BIOS incase of packet update mechanism would not accept packet
placed in memory below a cretain address. This address is by default 128K
but can change. The driver now can accept the memory floor if the user
chooses to make it will try to allocate contiguous physical memory above
the memory floor by allocating a set of packets till a valid memory
allocation is made. All the allocates then are freed. This repeats for
everty packet.
This patch was created by Michael E Brown and has been tested on 2.6.14-rc5
Signed-of-by: Michael E Brown <Michael_E_Brown@Dell.com>
Signed-off-by: Abhay Salunke <abhay_salunke@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
driver_unregister is not being properly called when the init function
returns an error case. Restructured the return logic such that this and
the other cleanups all happen in one place. Preformed many of the cleanups
that Andrew Morton's patch on Thursday made in tpm_atmel.c. Fixed
Matthieu's concern about writing before discovery.
(akpm: rmk said:
This driver is buggy. You must not provide your own release function - it
doesn't solve the problem which the warning (which you get when you don't
provide one) is telling you about.
You should convert your device driver over to the replacement dynamic platform
support, once it is merged. IOW, something like:
pdev = platform_device_alloc("mydev", id);
if (pdev) {
err = platform_device_add_resources(pdev, &resources,
ARRAY_SIZE(resources));
if (err == 0)
err = platform_device_add_data(pdev, &platform_data,
sizeof(platform_data));
if (err == 0)
err = platform_device_add(pdev);
} else {
err = -ENOMEM;
}
if (err)
platform_device_put(pdev);
)
Signed-off-by: Kylene Jo Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
There is a wrong BUG in mxser_close.
The BUG is triggered when tty->driver_data == NULL, But in fact this is not
a bug, because tty->driver->close is called even when tty->driver->open
fails.
LDD3 tells us to do nothing in such cases.
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Remove explicit tty_driver ops initialisation, because this is already done
by tty_set_operations.
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch adds a connector that reports fork, exec, id change, and exit
events for all processes to userspace. It replaces the fork_advisor patch
that ELSA is currently using. Applications that may find these events
useful include accounting/auditing (e.g. ELSA), system activity monitoring
(e.g. top), security, and resource management (e.g. CKRM).
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Large console spews from IRQ or local_irq_disable() sections can cause the NMI
watchdog to go off.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
If vmcp is interrupted by a signal the vmcp command buffer is not freed.
Found by Pete Zaitcev.
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Access to FBA disks via DIAG fails for block sizes > 512 byte. The device
analysis code of the DIAG discipline does not properly initialize the DIAG250
device environment after completion of the analysis. This results in VM only
serving 512 bytes per block I/O request whereas Linux expects larger block
sizes. Add proper device environment setup to end of analysis code.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Future versions of gcc may remove initialization code for control blocks used
by the diag250 inline assembly due to incompletely specified constraints.
This may lead to erratic behavior. Fix the diag250 inline assembly
constraints.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Make the interface for setting ccw group devices on-/offline consistent with
that for ccw devices: Check if the device driver provided a set_{on,off}line
function and just set the device on-/offline if not.
Signed-off-by: Cornelia Huck <cohuck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This extends the API somewhat to allow for platform-specific VCR reading and
writing. Some platforms (like SH4-202) implement the VCR in a split VCRL and
VCRH, but end up being in reverse order or have other quirks that need to be
dealt with, so we add a set of superhyway_ops per-bus to accomodate this.
We also have to extend the per-device resources somewhat, as some devices now
conveniently split control and data blocks. So we allow a platform to
register its set of SuperHyway devices via superhyway_add_devices() with the
control block always ordered as the first resource (as this is the one that
userspace cares about).
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/sh/ got dropped from drivers/Makefile, so add it back in..
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It is not valid to enable scatter/gather without hardware checksum support
of some kind. (akpm: applies only to the old boomerang cards).
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add capability for 3c59x driver to use memory-mapped PCI I/O resources.
This may improve performance for those devices so equipped. This will be
the default behaviour for IS_CYCLONE and IS_TORNADO devices. Additionally,
it can be enabled/disabled individually for up to MAX_UNITS number of
devices via the use_mmio module option or for all units via the
global_use_mmio option. The use_mmio option overrides the global_use_mmio
option for those devices specified.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Only increment rx_dropped in case of lack of resources (i.e. not for
frames with errors).
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add support for ETHTOOL_GPERMADDR to 3c59x.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Correct several (apparently cut & paste) grammatical typos in module
parameter descriptions. They seem to have originated as copies of the
description for "global_options".
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Beautify the array initilizations for the module parameters.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add bounds checking to usage of hw_checksums module parameter array.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
In order to spare some I/O operations, be more intelligent about when to
read from the PHY.
Pointed out by Bogdan Costescu.
Signed-off-by: Tommy S. Christensen <tommy.christensen@tpack.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Clean up mdio_read routines in 3c59x.c to use the MII_* macros defined in
include/linux/mii.h
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Convert 3c59x driver to use pci_iomap API. This makes it easier to enable
the use of memory-mapped PCI I/O resources.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The offsets of the registers are in a different place, and
some parts cannot handle a full set of modem control signals.
Signed-off-by: Pantelis Antoniou <pantelis@embeddedalley.ocm>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Some visually impaired people use hardware devices which directly read
the vga screen. When newt for instance asks to hide the cursor for
better visual aspect, the kernel puts the vga cursor out of the screen,
so that the cursor position can't be read by the hardware device. This
is a great loss for such people.
Here is a patch which uses the same technique as CUR_NONE for hiding the
cursor while still moving it.
Mario, you should apply it to the speakup kernel for access floppies
asap. I'll submit a 2.4 patch too.
Signed-off-by: samuel.thibault@ens-lyon.org
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Statically allocated devices in module data is a potential cause
of oopsen. The device may be in use by a userspace process, which
will keep a reference to the device. If the module is unloaded,
the module data will be freed. Subsequent use of the platform
device will cause a kernel oops.
Use generic platform device allocation/release code in modules.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Statically allocated devices in module data is a potential cause
of oopsen. The device may be in use by a userspace process, which
will keep a reference to the device. If the module is unloaded,
the module data will be freed. Subsequent use of the platform
device will cause a kernel oops.
Use generic platform device allocation/release code in modules.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Release code in driver modules is a potential cause of oopsen.
The device may be in use by a userspace process, which will keep
a reference to the device. If the module is unloaded, the module
text will be freed. Subsequently, when the last reference is
dropped, the release code will be called, which no longer exists.
Use generic platform device allocation/release code in modules.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Release code in driver modules is a potential cause of oopsen.
The device may be in use by a userspace process, which will keep
a reference to the device. If the module is unloaded, the module
text will be freed. Subsequently, when the last reference is
dropped, the release code will be called, which no longer exists.
Use generic platform device allocation/release code in modules.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Release code in driver modules is a potential cause of oopsen.
The device may be in use by a userspace process, which will keep
a reference to the device. If the module is unloaded, the module
text will be freed. Subsequently, when the last reference is
dropped, the release code will be called, which no longer exists.
Use generic platform device allocation/release code in modules.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Release code in driver modules is a potential cause of oopsen.
The device may be in use by a userspace process, which will keep
a reference to the device. If the module is unloaded, the module
text will be freed. Subsequently, when the last reference is
dropped, the release code will be called, which no longer exists.
Use generic platform device allocation/release code in modules.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Re-jig the simple platform device support to allow private data
to be attached to a platform device, as well as allowing the
parent device to be set.
Example usage:
pdev = platform_device_alloc("mydev", id);
if (pdev) {
err = platform_device_add_resources(pdev, &resources,
ARRAY_SIZE(resources));
if (err == 0)
err = platform_device_add_data(pdev, &platform_data,
sizeof(platform_data));
if (err == 0)
err = platform_device_add(pdev);
} else {
err = -ENOMEM;
}
if (err)
platform_device_put(pdev);
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Adds a phy_mask field to struct mii_bus and uses it. This field
indicates each phy address to be ignored when probing the mdio bus.
This support is needed for the fs_enet and ibm_emac drivers to be
converted to the generic phy layer among other drivers. Many systems
lock up on probing certain phy addresses or probing doesn't return
0xffff when nothing is found at the address. A new driver I'm
working on also makes use of this mask.
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Some boards using the 79c976 pcnet32 chip will hang the system if the
ethtool --register-dump is performed with the device operational. The
request to read bcr30 is retried by the PCI device infinitely without
returning data, hanging the system.
Tested ia32 and ppc64.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch is a better fix for Allied Telesyn 2700/2701 FX boards than
the change made in early January this year. It allows the user to
select the speed/duplex via module_param, but if no selection is made,
forces the speed to 100 FD. It fixes both Bugzilla bugs 2669 and 4551.
Tested ia32 and ppc64 by myself, and by the originator of bug 2669.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Display the name eth%d or pci_name() of device which fails to allocate
memory. When changing ring size via ethtool, it also releases the
lock before returning on error. Added comment that the caller of
pcnet32_alloc_ring must call pcnet32_free_ring on error, to avoid leak.
Tested ia32 by forcing allocation errors.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Hi,
This patch provides dynamic two buffer-mode and 3 buffer-mode options.
Previously 2 buffer-mode was compilation option. Now with this patch applied
one can load driver in 2 buffer-mode with module-load parameter
ie.
#insmod s2io.ko rx_ring_mode=2
This patch also provides 3 buffer-mode which provides header separation
functionality. In 3 buffer-mode skb->data will have L2/L3/L4 headers and
"skb_shinfo(skb)->frag_list->data" will have have L4 payload.
one can load driver in 3 buffer-mode with same above module-load parameter
ie.
#insmod s2io.ko rx_ring_mode=3
Please review the patch.
Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
fid is declared as a u32 (unsigned int), and then a few lines later, it is checked for a value < 0, which is clearly useless.
In the two locations this function is used, in one it is *explicitly* given a negative number, which would be ignored with the
current definition.
Thanks to LinuxICC (http://linuxicc.sf.net).
Signed-off-by: Gabriel A. Devenyi <ace@staticwave.ca>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Currently the driver takes a reference only for requests coming by way
of the gendisk, not for requests coming by way of the struct device or
struct scsi_device. Such requests can arrive in the rescan, flush,
and shutdown pathways.
The patch also makes the scsi_disk keep a reference to the underlying
scsi_device, and it erases the scsi_device's pointer to the scsi_disk
when the scsi_device is removed (since the pointer should no longer be
used).
This resolves Bugzilla entry #5237.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The printks that aren't for debugging should use the name of the controller,
not the driver name. Multiple MMC controllers aren't that common today, but
this is the right way to do things.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
There is a broken if clause in the wbsd driver that can cause the
driver to try and configure the chip even though none is found. This
results in i/o on invalid ports.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Use ata_pad_{alloc,free} in two drivers, to factor out common code.
Add ata_pad_{alloc,free} to two other drivers, which needed the padding
but had not been updated.
This adds support for the Nvidia Geforce 7800 series of cards to the
nvidiafb framebuffer driver. All it does is add the PCI device id for
the 7800, 7800 GTX, 7800 GO, and 7800 GTX GO cards to the module device
table for the nvidiafb.ko driver, so that nvidiafb.ko will actually work
on these cards.
I also added the relevant PCI device ids to linux/pci_ids.h
I tested it on my 7800 GTX here and it works like a charm. I now can
get framebuffer support on this card! Woo hoo!! Nothing like 200x75 text
mode to make your eyes BLEED. ;)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
At header fixup time, it is not yet legal to ioremap() PCI
device registers, yet that is what this quirk code needs to
do.
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure that the P_Key index passed into mthca_modify_qp() is
within the device's P_Key table.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Fix sparse warning about passing `0` to simple_strtoul()
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix hotplug of devices for ib_umad module: when a device goes away,
kill off all MAD agents for open files associated with that device,
and make sure that the device is not touched again after ib_umad
returns from its remove_one function.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Mellanox has decided that the components of the firmware version are
really meant to be displayed in decimal, e.g. 0x000400070190 is
version 4.7.400. Change the format we use from "%x.%x.%x" to
"%d.%d.%d" to match this convention.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Don't build ipoib_mcast_iter_ functions if CONFIG_INFINIBAND_IPOIB_DEBUG
is not enabled -- their only callers will not be built either.
Also move the prototype for ipoib_open() to ipoib.h to fix a sparse warning.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add an InfiniBand SCSI RDMA Protocol (SRP) initiator. This driver is
used to talk talk to InfiniBand SRP targets (storage devices).
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Shrink our source and .text a little by removing a few assignments of
NULL and 0 to memory that is already cleared as part of the allocation.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Replace kmalloc()+memset(,0,) with kzalloc(), for a net savings of 35
source lines and about 500 bytes of text.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
cfq's add_req_fn callback may invoke q->request_fn directly and
depending on low-level driver used and timing, a queued request may be
finished & deallocated before add_req_fn callback returns. So,
__elv_add_request must not access rq after it's passed to add_req_fn
callback.
This patch moves rq_mergeable test above add_req_fn(). This may
result in q->last_merge pointing to REQ_NOMERGE request if add_req_fn
callback sets it but as RQ_NOMERGE is checked again when blk layer
actually tries to merge requests, this does not cause any problem.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch fixes a panic in the current tree caused by a race condition between the initial replenish cycle and the rx processing of the first packets trying to replenish the buffers.
Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/char/tlclk.c: In function `tlclk_init':
drivers/char/tlclk.c:775: warning: implicit declaration of function `platform_device_register_simple'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
CC drivers/char/tpm/tpm_nsc.o
drivers/char/tpm/tpm_nsc.c:277: error: `platform_bus_type' undeclared here (not in a function)
...
CC drivers/char/tpm/tpm_atmel.o
drivers/char/tpm/tpm_atmel.c:175: error: `platform_bus_type' undeclared here (not in a function)
Make sure to include proper headers.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Matt Porter