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Allow QUEUE_FLAG_NONROT to propagate up the device stack if all
underlying devices are non-rotational. Tools like ureadahead will
schedule IOs differently based on the rotational flag.
With this patch, I see boot time go from 7.75 s to 7.46 s on my device.
Suggested-by: J. Richard Barnette <jrbarnette@chromium.org>
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: dm-devel@redhat.com
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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We can't just pass back the return value of snd_soc_update_bits() as it
will be 1 if a bit changed rather than zero.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Enable the maximum size (128) supported by the device for the shadow
vlans table, ignoring the module parameter that overrides it. This
table is only used by the IBoE control plane for setting a vlan index
into an RC/UC QP context or UD Address Handle.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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There's no need to set the vlan-related fields in an IBoE send WQE
control segment:
- the vlan to be used by a UD QP is set in the datagram segment.
- for GSI (CM) QP, all the headers down to 8021q and MAC are built by
the software anyway.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The IBoE port MTU is derived from the corresponding Ethernet netdevice
MTU, which can support jumbo frames of 9K, and hence surely supports
the max IB mtu of 4K.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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QPs need to be moved to error before telling the firwmare to shutdown
the queue. Otherwise, the application can submit WRs that will never
get fetched by the hardware and never flushed by the driver.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Acked-by: Steve Wise <swsie@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Commit 01e7da6ba53c ("RDMA/cxgb4: Make sure flush CQ entries are
collected on connection close") introduced a potential problem where a
CQ's comp_handler can get called simultaneously from different places
in the iw_cxgb4 driver. This does not comply with
Documentation/infiniband/core_locking.txt, which states that at a
given point of time, there should be only one callback per CQ should
be active.
This problem was reported by Parav Pandit <Parav.Pandit@Emulex.Com>.
Based on discussion between Parav Pandit and Steve Wise, this patch
fixes the above problem by serializing the calls to a CQ's
comp_handler using a spin_lock.
Reported-by: Parav Pandit <Parav.Pandit@Emulex.Com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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iw_cxgb3 has a potential problem where a CQ's comp_handler can get
called simultaneously from different places in iw_cxgb3 driver. This
does not comply with Documentation/infiniband/core_locking.txt, which
states that at a given point of time, there should be only one
callback per CQ should be active.
Such problem was reported by Parav Pandit <Parav.Pandit@Emulex.Com>
for iw_cxgb4 driver. Based on discussion between Parav Pandit and
Steve Wise, this patch fixes the above problem by serializing the
calls to a CQ's comp_handler using a spin_lock.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Fix an issue where the link would come up after replugging a cable
even if it has been DISABLED manually.
Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Drop the edac_mce custom hook in favor of the generic notifier
mechanism. Also, do not log the error to mcelog if the notified agent
was able to decode it.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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mce->socketid and cpu_data(mce->cpu).phys_proc_id are the same,
compare with mce_setup (in mce.c):
m->cpu = m->extcpu = smp_processor_id();
...
m->socketid = cpu_data(m->extcpu).phys_proc_id;
This makes it easier for example for XEN patches to hook into
the MCE subsystem.
Compile tested on x86_64.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: JBeulich@novell.com
CC: linux-edac@vger.kernel.org
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
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Xeon 35xx doesn't mention memory scrub. It seems that only Xeon 55xx
and above supports it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add scrubbing support to i7core_edac, tested on intel Xeon L5638.
Signed-off-by: Samuel Gabrielsson <samuel.gabrielsson@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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As we'll need to use those structs for trace functions, they should
be on a more public place. So, move struct mem_ctl_info & friends
to edac.h.
No functional changes on this patch.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
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Error injection needs the pci device 0:0. So, we need to revert
this changeset: 79daef2099a02fed35747c23bad22f30441133ea.
Tests need to be made to be sure that refcount won't be wrong
as noticed before.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Now that we are doing the locking correctly, we need to grab the
i_completed_io_lock() twice per end_io. We can clean this up by
removing the structure from the i_complted_io_list, and use this as
the locking mechanism to prevent ext4_flush_completed_IO() racing
against ext4_end_io_work(), instead of clearing the
EXT4_IO_END_UNWRITTEN in io->flag.
In addition, if the ext4_convert_unwritten_extents() returns an error,
we no longer keep the end_io structure on the linked list. This
doesn't help, because it tends to lock up the file system and wedges
the system. That's one way to call attention to the problem, but it
doesn't help the overall robustness of the system.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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It adds maintainer for ARM/FREESCALE IMX6.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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The patch merges the build of imx3 and imx6. The Kconfig symbol
ARCH_IMX_V6_V7 is introduced to replace ARCH_MX3 and ARCH_MX6.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It adds suspend/resume support for imx6q.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It adds generic device tree based machine support for imx6q.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It adds smp and cpu hotplug support for imx6q.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It adds a number of core drivers support for imx6q, including clock,
General Power Controller (gpc), Multi Mode DDR Controller(mmdc) and
System Reset Controller (src).
Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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This is a plain translation of assembly gic irq handler to C function
for CONFIG_MULTI_IRQ_HANDLER support on imx family.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It adds the core definitions and low-level debug uart support
for imx6q.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It adds device tree source and documentation for imx6q platform.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Conflicts:
arch/arm/Kconfig.debug
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Conflicts:
arch/arm/plat-mxc/include/mach/memory.h
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Add the platform suspend ops for highbank.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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This adds cpu hotplug for highbank. On highbank, a core is always reset and
boots up the same path as a cold boot.
Signed-off-by: Martin Bogomolni <martin@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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This enables SMP support on highbank processor.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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Adding maintainer for arch/arm/mach-highbank/
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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This adds basic support for the Calxeda Highbank platform.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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This adds the devicetree source and documentation for the Calxeda highbank
platform.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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Add empty version of l2x0_of_init for when CONFIG_CACHE_L2X0 is not selected.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Barry Song <21cnbao@gmail.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
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Conflicts:
arch/arm/Kconfig
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Conflicts:
arch/arm/include/asm/localtimer.h
arch/arm/mach-msm/board-msm8x60.c
arch/arm/mach-omap2/board-generic.c
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Commit "ARM: gic: add irq_domain support" (b49b6ff) breaks SPARSE_IRQ
on platforms with GIC. When SPARSE_IRQ is enabled, all NR_IRQS or
mach_desc->nr_irqs will be allocated by arch_probe_nr_irqs(). This caused
irq_alloc_descs to allocate irq_descs after the pre-allocated space.
Make irq_alloc_descs search for an exact irq range and assume it has
been pre-allocated on failure. For DT probing dynamic allocation is used.
DT enabled platforms should set their nr_irqs to NR_IRQ_LEGACY and have all
irq_chips allocate their irq_descs with irq_alloc_descs if SPARSE_IRQ is
enabled.
gic_init irq_start param is changed to be signed with negative meaning do
dynamic Linux irq assigment.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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This adds ARM gic interrupt controller initialization using device tree
data.
The initialization function is intended to be called by of_irq_init
function like this:
const static struct of_device_id irq_match[] = {
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
{}
};
static void __init init_irqs(void)
{
of_irq_init(irq_match);
}
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
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Convert the gic interrupt controller to use irq domains in preparation
for device-tree binding and MULTI_IRQ. This allows for translation between
GIC interrupt IDs and Linux irq numbers.
The meaning of irq_offset has changed. It now is just the number of skipped
GIC interrupt IDs for the controller. It will be 16 for primary GIC and 32
for secondary GICs.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
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Interrupt controllers can have non-zero starting value for h/w irq numbers.
Adding support in irq_domain allows the domain hwirq numbering to match
the interrupt controllers' numbering.
As this makes looping over irqs for a domain more complicated, add loop
iterators to iterate over all hwirqs and irqs for a domain.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
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of_irq_init will scan the devicetree for matching interrupt controller
nodes. Then it calls an initialization function for each found controller
in the proper order with parent nodes initialized before child nodes.
Based on initial pseudo code from Grant Likely.
Changes in v4:
- Drop unnecessary empty list check
- Be more verbose on errors
- Simplify "if (!desc) WARN_ON(1)" to "if (WARN_ON(!desc))"
Changes in v3:
- add missing kfree's found by Jamie
- Implement Grant's comments to simplify the init loop
- fix function comments
Changes in v2:
- Complete re-write of list searching code from Grant Likely
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
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Set `invert' bit for Capture Switch. Otherwise analogue is muted when
Capture Switch is ON.
Signed-off-by: Hong Xu <hong.xu@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
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Current implementation in wm8711_set_dai_fmt always clear BIT[3:2]
(the Input Audio Data Bit Length Select) of WM8711_IFACE(07h) register.
Input Audio Data Bit Length Select bits are set by wm8711_hw_params,
we should leave BIT[3:2] untouched in wm8711_set_dai_fmt.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
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The Input Audio Data Bit Length Select is controlled by BIT[3:2] of
WM8711_IFACE(07h) register.
Current code incorrectly masks BIT[1:0] which is for Audio Data Format Select.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
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v3: detection code is x86 and KVM specific, hide it under ifdef
v2: add detection for virtual environments (KVM and Parallels)
This patch is intended to improve performance in virtualized environments
like Parallels Desktop or KVM/VirtualBox/QEMU (virtual ICH/AC97 audio).
I/O access is very time-expensive operation in virtual world: VCPU
can be rescheduled and in the worst case we get more than 10ms delay on
each I/O access.
In the virtual environment loop exit rule
(old_civ == current_civ && old_picb == current_picb) is never satisfied,
because old_picb is never the same as current_picb due to delay inspired
by reading current_civ. As a result loop ended by timeout and we get 10x
more I/O operations.
Experimental data from Prallels Desktop 7, RHEL6 guest (I/O ops per
second):
Original code:
In Port Counter Callback
f014 41550 fffff00000179d00 ac97_bm_read_civ+0x000
f018 41387 fffff0000017a580 ac97_bm_read_picb+0x000
With patch:
In Port Counter Callback
f014 4090 fffff00000179d00 ac97_bm_read_civ+0x000
f018 1964 fffff0000017a580 ac97_bm_read_picb+0x000
Signed-off-by: Konstantin Ozerkov <kozerkov@parallels.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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