It has been observed that in zero-loss benchmarks, when a
slow traffic rate is being tested, the IRQ timer coalescing
parameter was set too high, and the ethernet controller
would start dropping packets because the job ring back half
wouldn't be executed in time before the ethernet controller
would fill its buffers, thereby significantly reducing the
zero-loss performance figures.
Empirical testing has shown that the best zero-loss performance
is achieved when IRQ coalescing is set to minimum values and/or
turned off, since apparently the job ring driver already implements
an adequately-performing general-purpose IRQ mitigation strategy
in software.
Whilst we could go with minimal count (2-8) and timing settings
(192-256), we prefer just turning h/w coalescing altogether off
to minimize setkey latency (due to split key generation), and
for consistent cross-SoC performance (the SEC vs. core clock
ratio changes).
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The SEC v4.x' RNGB h/w block self-initialized. RNG4, available
on SEC versions 5 and beyond, is based on a different standard
that requires manual initialization.
Also update any new errors From the SEC v5.2 reference manual:
The SEC v5.2's RNG4 unit reuses some error IDs, thus the addition
of rng_err_id_list over the CHA-independent err_id_list.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
SEC v4.x were only 36-bit, SEC v5+ are 40-bit capable.
Also set a DMA mask for any job ring devices created.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
caam_read copies random bytes from two buffers into output.
caam rng can fill empty buffer 0xffff bytes at a time,
but the buffer sizes are rounded down to multiple of cacheline size.
Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
- rename scatterlist and link_tbl functions
- link_tbl changed to sec4_sg
- sg_to_link_tbl_one changed to dma_to_sec4_sg_one,
since no scatterlist is use
Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
functions for external storage of seq in/out lengths,
i.e., for 32-bit lengths.
These type-dependent functions automatically determine whether to
store the length internally (embedded in the command header word) or
externally (after the address pointer), based on size of the type
given.
Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
init_desc, by always ORing with 1 for the descriptor header inclusion
into the descriptor length, and init_sh_desc_pdb, by always specifying
the descriptor length modification for the PDB via options, would not
allow for odd length PDBs to be embedded in the constructed descriptor
length. Fix this by simply changing the OR to an addition.
also round-up pdb_bytes to the next SEC command unit size, to
allow for, e.g., optional packet header bytes that aren't a
multiple of CAAM_CMD_SZ.
Reported-by: Radu-Andrei BULIE <radu.bulie@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
In case of protocol acceleration descriptors, Shared descriptor header must
carry size of header length + PDB length in words which will be skipped by
DECO while processing descriptor to provide first command word offset
Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
SEC4 h/w gets configured in 32- vs. 36-bit physical
addressing modes depending on the size of dma_addr_t,
which is not always equal to sizeof(u32 *).
Also fixed alignment of a dma_unmap call whilst in there.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When the nx driver was pulled, the Makefile that actually
builds it is arch/powerpc/Makefile. This is unnatural.
This patch moves the line that builds the nx driver from
arch/powerpc/Makefile to drivers/crypto/Makefile where it
belongs.
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Since mv_hash_final_fallback() uses ctx->state, read out the digest
state register before calling it.
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The timer triggers when 500ms have gone by after triggering the engine
and no completion interrupt was received. The callback then tries to
sanitise things as well as possible.
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The CRC peripheral is a hardware block used to compute the CRC of the block
of data. This is based on a CRC32 engine which computes the CRC value of 32b
data words presented to it. For data words of < 32b in size, this driver
pack 0 automatically into 32b data units. This driver implements the async
hash crypto framework API.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Pull crypto fixes from Herbert Xu:
"This push fixes an unaligned fault on x86-32 with aesni-intel and an
RNG failure with atmel-rng (repeated bits)."
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: aesni-intel - fix unaligned cbc decrypt for x86-32
hwrng: atmel-rng - fix race condition leading to repeated bits
Pull regmap fixes from Mark Brown:
"Nothing too exciting - a cleanup for debugfs in error handling and a
fix for the padding (which has only just acquired real use) and
exporting a function that's supposed to be usable by drivers."
* tag 'regmap-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Export regmap_reinit_cache()
regmap: Fix the size calculation for map->format.buf_size
regmap: clean up debugfs if regmap_init fails
Pull regulator fixes from Mark Brown:
"A couple of small fixes, plus larger fixes for the gpio-regulator
driver the most recent changes for which had apparently not been
tested at all in -next (or elsewhere from the looks of it)."
* tag 'regulator-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: core: Properly handle the case min_uV < rdev->desc->min_uV in map_voltage_linear
regulator: max8649: fix missing regmap in rdev
regulator: gpio-regulator: populate selector from set_voltage
regulator: gpio-regulator: Fix finding of smallest value
regulator: gpio-regulator: do not pass drvdata pointer as reference
regulator: anatop: Use correct __devexit_p annotation
regulator: palmas: Fix wrong kfree calls
This reverts commit 9e612a008f.
It incorrectly finds VGA connectors where none are attached, apparently
not noticing that nothing replied to the EDID queries, and happily using
the default EDID modes that have nothing to do with actual hardware.
That in turn then causes X to fall down to the lowest common
denominator, which is usually the default 1024x768 mode that is in the
default EDID and pretty much anything supports).
I'd suggest that if not relying on the HDP pin, the code should at least
check whether it gets valid EDID data back, rather than just assume
there's something on the VGA connector.
Cc: Dave Airlie <airlied@linux.ie>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull UBI/UBIFS fixes from Artem Bityutskiy:
"Fix UBI and UBIFS - they refuse to work without debugfs. This was
broken by the 3.5-rc1 UBI/UBIFS changes when we removed the debugging
Kconfig switches.
Also, correct locking in 'ubi_wl_flush()' - it was extended to support
flushing a specific LEB in 3.5-rc1, and the locking was sub-optimal."
* tag 'upstream-3.5-rc2' of git://git.infradead.org/linux-ubifs:
UBI: correct ubi_wl_flush locking
UBIFS: fix debugfs-less systems support
UBI: fix debugfs-less systems support
Pull drm intel and exynos fixes from Dave Airlie:
"A bunch of fixes for Intel and exynos, nothing too major, a new intel
PCI ID, and a fix for CRT detection."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: pch_irq_handler -> {ibx, cpt}_irq_handler
char/agp: add another Ironlake host bridge
drm/i915: fix up ivb plane 3 pageflips
drm/exynos: fixed blending for hdmi graphic layer
drm/exynos: Remove dummy encoder get_crtc operation implementation
drm/exynos: Keep a reference to frame buffer GEM objects
drm/exynos: Don't cast GEM object to Exynos GEM object when not needed
drm/exynos: DRIVER_BUS_PLATFORM is not a driver feature
drm/exynos: fixed size type.
drm/exynos: Use DRM_FORMAT_{NV12, YUV420} instead of DRM_FORMAT_{NV12M, YUV420M}
drm/i915: hold forcewake around ring hw init
drm/i915: Mark the ringbuffers as being in the GTT domain
drm/i915/crt: Do not rely upon the HPD presence pin
drm/i915: Reset last_retired_head when resetting ring
* 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung:
drm/exynos: fixed blending for hdmi graphic layer
drm/exynos: Remove dummy encoder get_crtc operation implementation
drm/exynos: Keep a reference to frame buffer GEM objects
drm/exynos: Don't cast GEM object to Exynos GEM object when not needed
drm/exynos: DRIVER_BUS_PLATFORM is not a driver feature
drm/exynos: fixed size type.
drm/exynos: Use DRM_FORMAT_{NV12, YUV420} instead of DRM_FORMAT_{NV12M, YUV420M}
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: pch_irq_handler -> {ibx, cpt}_irq_handler
char/agp: add another Ironlake host bridge
drm/i915: fix up ivb plane 3 pageflips
drm/i915: hold forcewake around ring hw init
drm/i915: Mark the ringbuffers as being in the GTT domain
drm/i915/crt: Do not rely upon the HPD presence pin
drm/i915: Reset last_retired_head when resetting ring
Properly handle the case if the specified min_uV is less than the voltage given
by the lowest selector.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Commit "62f38455 UBI: modify ubi_wl_flush function to clear work queue for a lnum"
takes the 'work_sem' semaphore in write mode for the entire loop, which is not
very good because it will block other workers for potentially long time. We do
not need to have it in write mode - read mode is enough, and we do not need to
hole it over the entire loop. So this patch turns changes the locking: takes
'work_sem' in read mode and pushes it down to the loop.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Commit "aa44d1d UBI: remove Kconfig debugging option" broke UBI and it
refuses to initialize if debugfs (CONFIG_DEBUG_FS) is disabled. I incorrectly
assumed that debugfs files creation function will return success if debugfs
is disabled, but they actually return -ENODEV. This patch fixes the issue.
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Cougar/Panther Point redefine the bits in SDEIIR pretty completely.
This function is just debugging, but if we're debugging we probably want
to be told accurate things instead of lies.
I'm told Lynx Point changes this yet more, but I have no idea how...
Note from Eugeni's review:
"For the record and for future enabling efforts, for LPT, bits 28-31
and 1-14 are gone since CPT/PPT (e.g., those must be zero). And there
is the bit 15 as a new addition, but we are not using it yet and
probably won't be using in foreseeable future."
Signed-off-by: Adam Jackson <ajax@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35103
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull ACPI and Power Management changes from Len Brown.
This does an evil merge to fix up what I think is a mismerge by Len to
the gma500 driver, and restore it to the mainline state.
In that driver, both branches had commented out the call to
acpi_video_register(), and Len resolved the merge to that commented-out
version.
However, in mainline, further changes by Alan (commit d839ede47a:
"gma500: opregion and ACPI" to be exact) had re-enabled the ACPI video
registration, so the current state of the driver seems to want it.
Alan is apparently still feeling the effects of partying with the Queen,
so he didn't reply to my query, but I'll do the evil merge anyway.
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
ACPI: fix acpi_bus.h build warnings when ACPI is not enabled
drivers: acpi: Fix dependency for ACPI_HOTPLUG_CPU
tools/power turbostat: fix IVB support
tools/power turbostat: fix un-intended affinity of forked program
ACPI video: use after input_unregister_device()
gma500: don't register the ACPI video bus
acpi_video: Intel video is not always i915
acpi_video: fix leaking PCI references
ACPI: Ignore invalid _PSS entries, but use valid ones
ACPI battery: only refresh the sysfs files when pertinent information changes
Pull InfiniBand/RDMA fixes from Roland Dreier:
"All in hardware drivers:
- Fix crash in cxgb4
- Fixes to new ocrdma driver
- Regression fixes for mlx4"
* tag 'rdma-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/mlx4: Fix max_wqe capacity reported from query device
mlx4_core: Fix setting VL_cap in mlx4_SET_PORT wrapper flow
IB/mlx4: Fix EQ deallocation in legacy mode
RDMA/cxgb4: Fix crash when peer address is 0.0.0.0
RDMA/ocrdma: Remove unnecessary version.h includes
RDMA/ocrdma: Fix signaled event for SRQ_LIMIT_REACHED
RDMA/ocrdma: Correct queue free count math
1. Limit the max number of WQEs per QP reported when querying the
device, so that ib_create_qp() will not fail for a QP size that the
device claimed to support due to additional headroom WQEs being
allocated.
2. Limit qp resources accepted for ib_create_qp() to the limits
reported in ib_query_device(). In kernel space, make sure that the
limits returned to the caller following qp creation also lie within
the reported device limits. For userspace, report as before, and do
adjustment in libmlx4 (so as not to break ABI).
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Sagi Grimberg <sagig@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Commit 096335b3f9 ("mlx4_core: Allow dynamic MTU configuration for
IB ports") modifies the port VL setting. This exposes a bug in
mlx4_common_set_port(), where the VL cap value passed in (inside the
command mailbox) is incorrectly zeroed-out:
mlx4_SET_PORT modifies the VL_cap field (byte 3 of the mailbox).
Since the SET_PORT command is paravirtualized on the master as well as
on the slaves, mlx4_SET_PORT_wrapper() is invoked on the master. This
calls mlx4_common_set_port() where mailbox byte 3 gets overwritten by
code which should only set a single bit in that byte (for the reset
qkey counter flag) -- but instead overwrites the entire byte.
The result is that when running in SR-IOV mode, the VL_cap will be set
to zero -- fix this.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Pull two md fixes from NeilBrown:
"One sparse-warning fix, one bugfix for 3.4-stable"
* tag 'md-3.5-fixes' of git://neil.brown.name/md:
md: raid1/raid10: fix problem with merge_bvec_fn
lib/raid6: fix sparse warnings in recovery functions
Pull IOMMU fixes from Joerg Roedel:
"Two patches are in here which fix AMD IOMMU specific issues. One
patch fixes a long-standing warning on resume because the
amd_iommu_resume function enabled interrupts. The other patch fixes a
deadlock in an error-path of the page-fault request handling code of
the IOMMU driver.
* tag 'iommu-fixes-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix deadlock in ppr-handling error path
iommu/amd: Cache pdev pointer to root-bridge
Or at least plug another gapping hole. Apparrently hw desingers only
moved the bit field, but did not bother ot re-enumerate the planes
when adding support for a 3rd pipe.
Discovered by i-g-t/flip_test.
This may or may not fix the reference bugzilla, because that one
smells like we have still larger fish to fry.
v2: Fixup the impossible case to catch programming errors, noticed by
Chris Wilson.
References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Eugeni Dodonov <eugeni.dodonov@intel.com>
Cc: stable@vger.kernel.org
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull two scsi target fixes from Nicholas Bellinger:
"The first is a small name-space collision fix from Stefan for the new
sbp-target / ieee-1394 code, and second is the FILEIO backend
conversion patch to always use O_DSYNC by default instead of O_SYNC as
recommended by hch. Note the latter is CC'ed stable."
* '3.5-merge-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target/file: Use O_DSYNC by default for FILEIO backends
sbp-target: rename a variable to avoid name clash
Pull embedded i2c update from Wolfram Sang:
"This only contains one new driver which had multiple dependencies
(pinctrl, i2c-mux-rework, new devm_* functions), so I decided to wait
for rc1. Plus, it had to wait a little for the ack of a devicetree
maintainer since the bindings were not trivial enough for me to pass
through.
So, given that, I hope there is still something like the "new driver
rule", so we could have the driver in 3.5 and people can start using
it. That would make merging support for some boards easier for 3.6
since the dependency on this driver is gone then."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: Add generic I2C multiplexer using pinctrl API
