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A timing hazard exists when an early fork/exec thread begins
exiting and sets its mm pointer to NULL while a separate core
tries to update the section information.
This commit ensures that the mm pointer is not NULL before
setting its section parameters. The arguments provided by
commit 11ce4b33aedc ("ARM: 8672/1: mm: remove tasklist locking
from update_sections_early()") are equally valid for not
requiring grabbing the task_lock around this check.
Fixes: 08925c2f124f ("ARM: 8464/1: Update all mm structures with section adjustments")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The new API for registering a gpio_irq_chip along with a
gpio_chip has a different semantic ordering than the old
API which added the irqchip explicitly after registering
the gpio_chip.
Move the calls to add the gpio_irq_chip *last* in the
function, so that the different hooks setting up OF and
ACPI and machine gpio_chips are called *before* we try
to register the interrupts, preserving the elder semantic
order.
This cropped up in the PL061 driver which used to work
fine with no special ACPI quirks, but started to misbehave
using the new API.
Fixes: e0d897289813 ("gpio: Implement tighter IRQ chip integration")
Cc: Thierry Reding <treding@nvidia.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: Wei Xu <xuwei5@hisilicon.com>
Tested-by: Wei Xu <xuwei5@hisilicon.com>
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190820080527.11796-1-linus.walleij@linaro.org
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We must make sure our scatterlist segments are not too big, otherwise
we might see swiotlb failures (happens with sev, also reproducable with
swiotlb=force).
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190821111210.27165-1-kraxel@redhat.com
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When refactoring port lookup for DSS outputs, commit d17eb4537a7e
("drm/omap: Factor out common init/cleanup code for output devices")
incorrectly hardcoded usage of DT port 0. This breaks operation for SDI
(which uses the DT port 1) and DPI outputs other than DPI0 (which are
not used in mainline DT sources).
Fix this by using the port number from the output omap_dss_device
of_ports field.
Fixes: d17eb4537a7e ("drm/omap: Factor out common init/cleanup code for output devices")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190821183226.13784-1-laurent.pinchart@ideasonboard.com
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
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qxl has two modes: "native" (used by the drm driver) and "vga" (vga
compatibility mode, typically used for boot display and firmware
framebuffers).
Accessing any vga ioport will switch the qxl device into vga mode.
The qxl driver never does that, but other drivers accessing vga ports
can trigger that too and therefore disturb qxl operation. So aquire
the legacy vga ioports from vgaarb to avoid that.
Reproducer: Boot kvm guest with both qxl and i915 vgpu, with qxl being
first in pci scan order.
v2: Skip this for secondary qxl cards which don't have vga mode in the
first place (Frediano).
Cc: Frediano Ziglio <fziglio@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805105401.29874-1-kraxel@redhat.com
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Benjamin Moody reported to Debian that XFS partially wedges when a chgrp
fails on account of being out of disk quota. I ran his reproducer
script:
# adduser dummy
# adduser dummy plugdev
# dd if=/dev/zero bs=1M count=100 of=test.img
# mkfs.xfs test.img
# mount -t xfs -o gquota test.img /mnt
# mkdir -p /mnt/dummy
# chown -c dummy /mnt/dummy
# xfs_quota -xc 'limit -g bsoft=100k bhard=100k plugdev' /mnt
(and then as user dummy)
$ dd if=/dev/urandom bs=1M count=50 of=/mnt/dummy/foo
$ chgrp plugdev /mnt/dummy/foo
and saw:
================================================
WARNING: lock held when returning to user space!
5.3.0-rc5 #rc5 Tainted: G W
------------------------------------------------
chgrp/47006 is leaving the kernel with locks still held!
1 lock held by chgrp/47006:
#0: 000000006664ea2d (&xfs_nondir_ilock_class){++++}, at: xfs_ilock+0xd2/0x290 [xfs]
...which is clearly caused by xfs_setattr_nonsize failing to unlock the
ILOCK after the xfs_qm_vop_chown_reserve call fails. Add the missing
unlock.
Reported-by: benjamin.moody@gmail.com
Fixes: 253f4911f297 ("xfs: better xfs_trans_alloc interface")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
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Fixes i2c on DP with some docks.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv713t2_BQ44gVV7Lqic6Vwmhq0r4FB5v-t0kD1jzFrbmQ@mail.gmail.com
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While I had thought I had fixed this issue in:
commit 342406e4fbba ("drm/nouveau/i2c: Disable i2c bus access after
->fini()")
It turns out that while I did fix the error messages I was seeing on my
P50 when trying to access i2c busses with the GPU in runtime suspend, I
accidentally had missed one important detail that was mentioned on the
bug report this commit was supposed to fix: that the CPU would only lock
up when trying to access i2c busses _on connected devices_ _while the
GPU is not in runtime suspend_. Whoops. That definitely explains why I
was not able to get my machine to hang with i2c bus interactions until
now, as plugging my P50 into it's dock with an HDMI monitor connected
allowed me to finally reproduce this locally.
Now that I have managed to reproduce this issue properly, it looks like
the problem is much simpler then it looks. It turns out that some
connected devices, such as MST laptop docks, will actually ACK i2c reads
even if no data was actually read:
[ 275.063043] nouveau 0000:01:00.0: i2c: aux 000a: 1: 0000004c 1
[ 275.063447] nouveau 0000:01:00.0: i2c: aux 000a: 00 01101000 10040000
[ 275.063759] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000001
[ 275.064024] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000000
[ 275.064285] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000000
[ 275.064594] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000000
Because we don't handle the situation of i2c ack without any data, we
end up entering an infinite loop in nvkm_i2c_aux_i2c_xfer() since the
value of cnt always remains at 0. This finally properly explains how
this could result in a CPU hang like the ones observed in the
aforementioned commit.
So, fix this by retrying transactions if no data is written or received,
and give up and fail the transaction if we continue to not write or
receive any data after 32 retries.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Update response packet length for the following commands per NC-SI spec
- Get Controller Packet Statistics
- Get NC-SI Statistics
- Get NC-SI Pass-through Statistics command
Signed-off-by: Ben Wei <benwei@fb.com>
Reviewed-by: Justin Lee <justin.lee1@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The request coming from Netlink should use the OEM generic handler.
The standard command handler expects payload in bytes/words/dwords
but the actual payload is stored in data if the request is coming from Netlink.
Signed-off-by: Justin Lee <justin.lee1@dell.com>
Reviewed-by: Vijay Khemka <vijaykhemka@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I think gcc is confused as I don't see how size could be used
unitialized, but go ahead and silence the warning.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190822032527.1376-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v5.3-rc6:
- dma fix for omap.
- Make output polling work on komeda.
- Fix bpp computing for AFBC formats in komeda.
- Support the memory-region property in komeda.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5f1fdfe3-814e-fad1-663c-7279217fc085@linux.intel.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.3-rc6:
- fix hardware state readout for 10 bpc HDMI
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87sgptd114.fsf@intel.com
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The VDSO update for CLOCK_BOOTTIME has a overflow issue as it shifts the
nanoseconds based boot time offset left by the clocksource shift. That
overflows once the boot time offset becomes large enough. As a consequence
CLOCK_BOOTTIME in the VDSO becomes a random number causing applications to
misbehave.
Fix it by storing a timespec64 representation of the offset when boot time
is adjusted and add that to the MONOTONIC base time value in the vdso data
page. Using the timespec64 representation avoids a 64bit division in the
update code.
Fixes: 44f57d788e7d ("timekeeping: Provide a generic update_vsyscall() implementation")
Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1908221257580.1983@nanos.tec.linutronix.de
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The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IEEE 802.3ae clause 45 defines a modified MDIO protocol that uses a two
staged access model in order to increase the address space.
This patch adds support for C45 MDIO read and write accesses, which are
used whenever the MII_ADDR_C45 flag in the regnum argument is set.
In case it is not set, C22 accesses are used as before.
Signed-off-by: Marco Hartmann <marco.hartmann@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 5.3
Third set of fixes for 5.3, and most likely the last one. The rt2x00
regression has been reported multiple times, others are of lower
priority.
mt76
* fix hang on resume on certain machines
rt2x00
* fix AP mode regression related to encryption
iwlwifi
* avoid unnecessary error messages due to multicast frames when not
associated
* fix configuration for ax201 devices
* fix recognition of QuZ devices
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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If qed_mcp_send_drv_version() fails, no cleanup is executed, leading to
memory leaks. To fix this issue, introduce the label 'err4' to perform the
cleanup work before returning the error.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The trap action should be copying the frame to CPU and
dropping it for forwarding, but current setting was just
copying frame to CPU.
Fixes: b596229448dd ("net: mscc: ocelot: Add support for tcam")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Allan W. Nielsen <allan.nielsen@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Neil Armstrong says:
====================
dt-bindings: net: meson-dwmac: convert to yaml
This patchsets converts the Amlogic Meson DWMAC glue bindings over to
YAML schemas using the already converted dwmac bindings.
The first patch is needed because the Amlogic glue needs a supplementary
reg cell to access the DWMAC glue registers.
Changes since v3:
- Specified net-next target tree
Changes since v2:
- Added review tags
- Updated allwinner,sun7i-a20-gmac.yaml reg maxItems
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now that we have the DT validation in place, let's convert the device tree
bindings for the Synopsys DWMAC Glue for Amlogic SoCs over to a YAML schemas.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The Amlogic Meson DWMAC glue bindings needs a second reg cells for the
glue registers, thus update the reg minItems/maxItems to allow more
than a single reg cell.
Also update the allwinner,sun7i-a20-gmac.yaml derivative schema to specify
maxItems to 1.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Unfortunately, my build fix for when time travel mode isn't
enabled broke time travel mode, because I forgot that we need
to use the timer time after the timer has been marked disabled,
and thus need to leave the time stored instead of zeroing it.
Fix that by splitting the inline into two, so we can call only
the _mode() one in the relevant code path.
Fixes: b482e48d29f1 ("um: fix build without CONFIG_UML_TIME_TRAVEL_SUPPORT")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2019-08-22
This series contains updates to i40e driver only.
Arnd Bergmann reduces the stack usage which was causing warnings on
32-bit architectures due to large structure sizes for 2 functions
getting inlined, so use noinline_for_stack to prevent the compilers from
combining the 2 functions.
Mauro S. M. Rodrigues fixes an issue when reading an EEPROM from SFP
modules that comply with SFF-8472 but do not implement the Digital
Diagnostic Monitoring (DDM) interface for i40e.
Huhai found we were not checking the return value for configuring the
transmit ring and continuing with XDP configuration of the transmit
ring.
Beilei fixes an issue of shifting signed 32-bit integers.
Sylwia adds support for "packet drop mode" to the MAC configuration for
admin queue command. This bit controls the behavior when a no-drop
packet is blocking a TC queue. Adds support for persistent LLDP by
checking the LLDP flag and reading the LLDP from the NVM when enabled.
Adrian fixes the "recovery mode" check to take into account which device
we are on, since x710 devices have 4 register values to check for status
and x722 devices only have 2 register values to check.
Piotr Azarewicz bumps the supported firmware API version to 1.9 which
extends the PHY access admin queue command support.
Jake makes sure the traffic class stats for a VEB are reset when the VEB
stats are reset.
Slawomir fixes a NULL pointer dereference where the VSI pointer was not
updated before passing it to the i40e_set_vf_mac() when the VF is in a
reset state, so wait for the reset to complete.
Grzegorz removes the i40e_update_dcb_config() which was not using the
correct NVM reads, so call i40e_init_dcb() in its place to correctly
update the DCB configuration.
Piotr Kwapulinski expands the scope of i40e_set_mac_type() since this is
needed during probe to determine if we are in recovery mode. Fixed the
driver reset path when in recovery mode.
Marcin fixed an issue where we were breaking out of a loop too early
when trying to get the PHY capabilities.
v2: Combined patch 7 & 9 in the original series, since both patches
bumped firmware API version. Also combined patches 12 & 13 in the
original series, since one increased the scope of checking for MAC
and the follow-on patch made use of function within the new scope.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The outer poll loop checks for whether we need to reschedule, and
returns to userspace if we do. However, it's possible to get stuck
in the inner loop as well, if the CPU we are running on needs to
reschedule to finish the IO work.
Add the need_resched() check in the inner loop as well. This fixes
a potential hang if the kernel is configured with
CONFIG_PREEMPT_VOLUNTARY=y.
Reported-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Reset both NVIDIA GPU and HDA in ThinkPad P50 quirk, which was broken
by another quirk that enabled the HDA device (Lyude Paul)
- Fix pciebus-howto.rst documentation filename typo (Bjorn Helgaas)
* tag 'pci-v5.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Documentation PCI: Fix pciebus-howto.rst filename typo
PCI: Reset both NVIDIA GPU and HDA in ThinkPad P50 workaround
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Dump WQE shall not include Ethernet segment. Define mlx5e_dump_wqe to be
used for "Dump WQEs" instead of sharing it with the general mlx5e_tx_wqe
layout.
Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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For TLS WQEs, metadata info did not include num_bytes. Due to this issue,
tx_tls_dump_bytes counter did not increment.
Modify tx_fill_wi() to fill num bytes. When it is called for non-traffic
WQE, zero is expected.
Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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When fw fatal error occurs, poll health() first detects and reports on a
fw error. Afterwards, it detects and reports on the fw fatal error
itself.
That can cause a long delay in fw fatal error handling which waits in a
queue for the fw error handling to be finished. The fw error handle will
try asking for fw core dump command while fw in fatal state may not
respond and driver will wait for command timeout.
Changing the flow to detect and handle first fw fatal errors and only if
no fatal error detected look for a fw error to handle.
Fixes: d1bf0e2cc4a6 ("net/mlx5: Report devlink health on FW issues")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Crdump repeats itself every chunk of 256bytes.
That is due to bug of missing progressing offset while copying the data
from buffer to devlink_fmsg.
Fixes: 9b1f29823605 ("net/mlx5: Add support for FW fatal reporter dump")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Fixed a bug where driver was breaking out of the loop and
reporting an error without retrying first.
Signed-off-by: Marcin Formela <marcin.formela@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch adds a function to read NVM module data and uses it to
read current LLDP agent configuration from NVM API version 1.8.
Signed-off-by: Sylwia Wnuczko <sylwia.wnuczko@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Driver waits after issuing a reset. When a reset takes too long a driver
gives up. Implemented by invoking PF reset in a loop. After defined
number of unsuccessful PF reset trials it returns error.
Without this patch PF reset fails when NIC is in recovery mode.
So make i40e_set_mac_type() public. i40e driver requires i40e_set_mac_type()
to be public. It is required for recovery mode handling. Without this patch
recovery mode could not be detected in i40e_probe().
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch removes function i40e_update_dcb_config(). Instead of
i40e_update_dcb_config() we use i40e_init_dcb(), which implements the
correct NVM read.
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Add update to the VSI pointer passed to the i40e_set_vf_mac function.
If VF is in reset state the driver waits in i40e_set_vf_mac function
for the reset to be complete, yet after reset the vsi pointer
that was passed into this function is no longer valid.
The patch updates local VSI pointer directly from pf->vsi array,
by using the id stored in VF pointer (lan_vsi_idx).
Without this commit the driver might occasionally invoke general
protection fault in kernel and disable the OS entirely.
Signed-off-by: Slawomir Laba <slawomirx.laba@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The stats structure for the VEB switch statistics is reset periodically,
but the tc_stats are not reset at the same time.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Upcoming FW increment API version to 1.9 due to Extend PHY access AQ
command support. SW is ready for that support as well.
Signed-off-by: Piotr Azarewicz <piotr.azarewicz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Function check_recovery_mode had wrong if statement.
Now we check proper FWS1B register values, which are responsible for
the recovery mode. Recovery mode has 4 values for x710 and 2 for x722.
That's why we need 6 different flags which are defined in the code.
Now in the if statement, we recognize type of mac address
and register value.
Without those changes driver could show wrong state.
Signed-off-by: Adrian Podlawski <adrian.podlawski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch adds "drop mode" parameter to set mac config AQ command.
This bit controls the behavior when a no-drop packet is blocking a TC
queue.
0 – The PF driver is notified.
1 – The blocking packet is dropped and then the PF driver is notified.
Signed-off-by: Sylwia Wnuczko <sylwia.wnuczko@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch fixes following error reported by cppcheck:
(error) Shifting signed 32-bit value by 31 bits is undefined behaviour
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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When i40e_configure_tx_ring(vsi->tx_rings[i]) returns an error, we should
exit from i40e_vsi_configure_tx and return the error, instead of continuing
to check whether xdp is enable, and configure the xdp transmit ring.
Signed-off-by: huhai <huhai@kylinos.cn>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Similar to the ixgbe issue fixed in:
655c91414579 ("ixgbe: Check DDM existence in transceiver before access)
i40e has the same issue when reading eeprom from SFP's module that comply
with SFF-8472 but not implement the Digital Diagnostic Monitoring (DDM)
interface described in it. The existence of such area is specified by bit
6 of byte 92, set to 1 if implemented.
Without this patch, due to not checking this bit i40e fails to read SFP
module's eeprom with the follow message:
ethtool -m enP51p1s0f0
Cannot get Module EEPROM data: Input/output error
Because it fails to read the additional 256 bytes in which it was assumed
to exist the DDM data.
Signed-off-by: "Mauro S. M. Rodrigues" <maurosr@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The functions i40e_aq_get_phy_abilities_resp() and i40e_set_fc() both
have giant structure on the stack, which makes each one use stack frames
larger than 500 bytes.
As clang decides one function into the other, we get a warning for
exceeding the frame size limit on 32-bit architectures:
drivers/net/ethernet/intel/i40e/i40e_common.c:1654:23: error: stack frame size of 1116 bytes in function 'i40e_set_fc' [-Werror,-Wframe-larger-than=]
When building with gcc, the inlining does not happen, but i40e_set_fc()
calls i40e_aq_get_phy_abilities_resp() anyway, so they add up on the
kernel stack just as much.
The parts that actually use large stacks don't overlap, so make sure
each one is a separate function, and mark them as noinline_for_stack to
prevent the compilers from combining them again.
Fixes: 0a862b43acc6 ("i40e/i40evf: Add module_types and update_link_info")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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In commit 6096d91af0b6 ("dm space map metadata: fix occasional leak
of a metadata block on resize"), we refactor the commit logic to a new
function 'apply_bops'. But when that logic was replaced in out() the
return value was not stored. This may lead out() returning a wrong
value to the caller.
Fixes: 6096d91af0b6 ("dm space map metadata: fix occasional leak of a metadata block on resize")
Cc: stable@vger.kernel.org
Signed-off-by: ZhangXiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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When btree_split_beneath() splits a node to two new children, it will
allocate two blocks: left and right. If right block's allocation
failed, the left block will be unlocked and marked dirty. If this
happened, the left block'ss content is zero, because it wasn't
initialized with the btree struct before the attempot to allocate the
right block. Upon return, when flushing the left block to disk, the
validator will fail when check this block. Then a BUG_ON is raised.
Fix this by completely initializing the left block before allocating and
initializing the right block.
Fixes: 4dcb8b57df359 ("dm btree: fix leak of bufio-backed block in btree_split_beneath error path")
Cc: stable@vger.kernel.org
Signed-off-by: ZhangXiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Variable err is initialized to a value that is never read and it is
re-assigned later. The initialization is redundant and can be removed.
Addresses-Coverity: ("Unused Value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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