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932,869 commits

Author SHA1 Message Date
wenxu
504882db83 netfilter: nf_tables_offload: add __nft_offload_get_chain function
Add __nft_offload_get_chain function to get basechain from device. This
function requires that caller holds the per-netns nftables mutex. This
patch implicitly fixes missing offload flags check and proper mutex from
nft_indr_block_cb().

Fixes: 9a32669fec ("netfilter: nf_tables_offload: support indr block call")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13 01:09:15 +02:00
Roman Gushchin
97a6136983 cgroup: freezer: fix frozen state inheritance
If a new child cgroup is created in the frozen cgroup hierarchy
(one or more of ancestor cgroups is frozen), the CGRP_FREEZE cgroup
flag should be set. Otherwise if a process will be attached to the
child cgroup, it won't become frozen.

The problem can be reproduced with the test_cgfreezer_mkdir test.

This is the output before this patch:
  ~/test_freezer
  ok 1 test_cgfreezer_simple
  ok 2 test_cgfreezer_tree
  ok 3 test_cgfreezer_forkbomb
  Cgroup /sys/fs/cgroup/cg_test_mkdir_A/cg_test_mkdir_B isn't frozen
  not ok 4 test_cgfreezer_mkdir
  ok 5 test_cgfreezer_rmdir
  ok 6 test_cgfreezer_migrate
  ok 7 test_cgfreezer_ptrace
  ok 8 test_cgfreezer_stopped
  ok 9 test_cgfreezer_ptraced
  ok 10 test_cgfreezer_vfork

And with this patch:
  ~/test_freezer
  ok 1 test_cgfreezer_simple
  ok 2 test_cgfreezer_tree
  ok 3 test_cgfreezer_forkbomb
  ok 4 test_cgfreezer_mkdir
  ok 5 test_cgfreezer_rmdir
  ok 6 test_cgfreezer_migrate
  ok 7 test_cgfreezer_ptrace
  ok 8 test_cgfreezer_stopped
  ok 9 test_cgfreezer_ptraced
  ok 10 test_cgfreezer_vfork

Reported-by: Mark Crossen <mcrossen@fb.com>
Signed-off-by: Roman Gushchin <guro@fb.com>
Fixes: 76f969e894 ("cgroup: cgroup v2 freezer")
Cc: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Tejun Heo <tj@kernel.org>
2019-09-12 14:04:45 -07:00
Roman Gushchin
44e9d308a5 kselftests: cgroup: add freezer mkdir test
Add a new cgroup freezer selftest, which checks that if a cgroup is
frozen, their new child cgroups will properly inherit the frozen
state.

It creates a parent cgroup, freezes it, creates a child cgroup
and populates it with a dummy process. Then it checks that both
parent and child cgroup are frozen.

Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2019-09-12 14:04:40 -07:00
Jes Sorensen
c9acc3c4f8 ipmi_si_intf: Fix race in timer shutdown handling
smi_mod_timer() enables the timer before setting timer_running. This
means the timer can be running when we get to stop_timer_and_thread()
without timer_running having been set, resulting in del_timer_sync()
not being called and the timer being left to cause havoc during
shutdown.

Instead just call del_timer_sync() unconditionally

Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Message-Id: <20190828203625.32093-2-Jes.Sorensen@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2019-09-12 16:03:18 -05:00
Jens Axboe
b2a9eadab8 io_uring: make sqpoll wakeup possible with getevents
The way the logic is setup in io_uring_enter() means that you can't wake
up the SQ poller thread while at the same time waiting (or polling) for
completions afterwards. There's no reason for that to be the case.

Reported-by: Lewis Baker <lbaker@fb.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-12 14:19:16 -06:00
Jens Axboe
6d5d5ac522 io_uring: extend async work merging
We currently merge async work items if we see a strict sequential hit.
This helps avoid unnecessary workqueue switches when we don't need
them. We can extend this merging to cover cases where it's not a strict
sequential hit, but the IO still fits within the same page. If an
application is doing multiple requests within the same page, we don't
want separate workers waiting on the same page to complete IO. It's much
faster to let the first worker bring in the page, then operate on that
page from the same worker to complete the next request(s).

Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-12 14:18:48 -06:00
Chris Wilson
0b8d6273db drm/i915/selftests: Keep the engine awake while we keep for preemption
Keep the engine awake to ensure that we don't inject any pm-idle
requests.

References: https://bugs.freedesktop.org/show_bug.cgi?id=111108
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190912122639.25224-1-chris@chris-wilson.co.uk
2019-09-12 21:02:54 +01:00
Arkadiusz Hiler
0c653722e6 drm/i915: Get the correct wakeref for reading HOTPLUG_EN et al.
Without it we get:
 Unclaimed read from register 0x1e1110
 WARNING: CPU: 2 PID: 1029 at drivers/gpu/drm/i915/intel_uncore.c:1101 __unclaimed_reg_debug+0x40/0x50 [i915]
 Call Trace:
  fwtable_read32+0x233/0x300 [i915]
  i915_interrupt_info+0xa73/0xd60 [i915]
  seq_read+0xdb/0x3c0
  full_proxy_read+0x51/0x80
  vfs_read+0x9e/0x160
  ksys_read+0x8f/0xe0
  do_syscall_64+0x55/0x1c0
  entry_SYSCALL_64_after_hwframe+0x49/0xbe

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109824
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190912125418.23115-2-arkadiusz.hiler@intel.com
2019-09-12 20:58:51 +01:00
Chris Wilson
ee73e2795b drm/i915/tgl: Disable preemption while being debugged
We see failures where the context continues executing past a
preemption event, eventually leading to situations where a request has
executed before we have event submitted it to HW! It seems like tgl is
ignoring our RING_TAIL updates, but more likely is that there is a
missing update required for our semaphore waits around preemption.

v2: And disable internal semaphore usage

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190912132313.12751-1-chris@chris-wilson.co.uk
2019-09-12 20:45:23 +01:00
Igor Druzhinin
a4098bc6ee xen/pci: reserve MCFG areas earlier
If MCFG area is not reserved in E820, Xen by default will defer its usage
until Dom0 registers it explicitly after ACPI parser recognizes it as
a reserved resource in DSDT. Having it reserved in E820 is not
mandatory according to "PCI Firmware Specification, rev 3.2" (par. 4.1.2)
and firmware is free to keep a hole in E820 in that place. Xen doesn't know
what exactly is inside this hole since it lacks full ACPI view of the
platform therefore it's potentially harmful to access MCFG region
without additional checks as some machines are known to provide
inconsistent information on the size of the region.

Now xen_mcfg_late() runs after acpi_init() which is too late as some basic
PCI enumeration starts exactly there as well. Trying to register a device
prior to MCFG reservation causes multiple problems with PCIe extended
capability initializations in Xen (e.g. SR-IOV VF BAR sizing). There are
no convenient hooks for us to subscribe to so register MCFG areas earlier
upon the first invocation of xen_add_device(). It should be safe to do once
since all the boot time buses must have their MCFG areas in MCFG table
already and we don't support PCI bus hot-plug.

Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2019-09-12 15:02:55 -04:00
amy.shih
3b710d7ae5 hwmon: (nct7904) Fix incorrect SMI status register setting of LTD temperature and fan.
According to datasheet, the SMI status register setting of LTD
temperature is SMI_STS3, and the SMI status register setting
of fan is SMI_STS5 and SMI_STS6.

Signed-off-by: amy.shih <amy.shih@advantech.com.tw>
Link: https://lore.kernel.org/r/20190912113300.4714-1-Amy.Shih@advantech.com.tw
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-12 11:52:08 -07:00
Dan Murphy
6d4faf3b6b leds: lm3532: Fix optional led-max-microamp prop error handling
Fix the error handling for the led-max-microamp property.
Need to check if the property is present and then if it is
retrieve the setting and its max boundary

Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-09-12 20:45:52 +02:00
Tony Nguyen
2de1256636 ice: Bump version
Bump version to 0.8.1-k

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-12 11:39:25 -07:00
Tony Nguyen
462acf6aca ice: Enable DDP package download
Attempt to request an optional device-specific DDP package file
(one with the PCIe Device Serial Number in its name so that different DDP
package files can be used on different devices). If the optional package
file exists, download it to the device. If not, download the default
package file.

Log an appropriate message based on whether or not a DDP package
file exists and the return code from the attempt to download it to the
device.  If the download fails and there is not already a package file on
the device, go into "Safe Mode" where some features are not supported.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-12 11:37:38 -07:00
Tony Nguyen
32d63fa1e9 ice: Initialize DDP package structures
Add functions to initialize, parse, and clean structures representing
the DDP package.

Upon completion of package download, read and store the DDP package
contents to these structures.  This configuration is used to
identify the default behavior and later used to update the HW table
entries.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-12 11:28:40 -07:00
Tony Nguyen
c764881096 ice: Implement Dynamic Device Personalization (DDP) download
Add the required defines, structures, and functions to enable downloading
a DDP package.  Before download, checks are performed to ensure the package
is valid and compatible.

Note that package download is not yet requested by the driver as further
initialization is required to utilize the package.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-12 11:19:16 -07:00
Colin Ian King
e6b998ab62 orangefs: remove redundant assignment to err
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>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2019-09-12 14:17:16 -04:00
Artur Świgoń
c42293a951 orangefs: Add octal zero prefix
This patch adds a missing zero to mode 755 specification required to
express it in octal numeral system.

Reported-by: Łukasz Wrochna <l.wrochna@samsung.com>
Signed-off-by: Artur Świgoń <a.swigon@partner.samsung.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2019-09-12 14:17:16 -04:00
Thomas Zimmermann
abddeb7b12 drm/vram: Unconditonally set BO call-back functions
The statement's condition is always true.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911110910.30698-5-tzimmermann@suse.de
2019-09-12 19:54:42 +02:00
Thomas Zimmermann
c30b225dba drm/vram: Unexport internal functions of VRAM MM
The init, cleanup and mmap functions of VRAM MM are only used internally.
Remove them from the public interface.

v2:
	* update for debugfs support

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911110910.30698-4-tzimmermann@suse.de
2019-09-12 19:54:42 +02:00
Thomas Zimmermann
b0e40e0805 drm/vram: Have VRAM MM call GEM VRAM functions directly
VRAM MM and GEM VRAM buffer objects are only used with each other;
connected via 3 function pointers. Simplify this code by making the
memory manager call the rsp. functions of the BOs directly; and
remove the functions from the BO's public interface.

v2:
	* typos in commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911110910.30698-3-tzimmermann@suse.de
2019-09-12 19:54:42 +02:00
Thomas Zimmermann
6b5ce4a1fb drm/vram: Move VRAM memory manager to GEM VRAM implementation
The separation between GEM VRAM objects and the memory manager is
artificial, as they are only used with each other. Copying both
implementations into the same file is a first step to simplifying
the code.

This patch only moves code without functional changes.

v3:
	* update to use dev->vma_offset_manager
v2:
	* update for debugfs support
	* typos in commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911110910.30698-2-tzimmermann@suse.de
2019-09-12 19:54:04 +02:00
Lukasz Czapnik
870f805e97 ice: Fix FW version formatting in dmesg
The FW build id is currently being displayed as an int which doesn't make
sense. Instead display FW build id as a hex value. Also add other useful
information to the output such as NVM version, API patch info, and FW
build hash.

Signed-off-by: Lukasz Czapnik <lukasz.czapnik@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-12 10:37:22 -07:00
Paul M Stillwell Jr
e3710a01a8 ice: send driver version to firmware
The driver is required to send a version to the firmware
to indicate that the driver is up. If the driver doesn't
do this the firmware doesn't behave properly.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-12 10:22:04 -07:00
Jens Axboe
21fa1004ff Merge branch 'nvme-5.4' of git://git.infradead.org/nvme into for-5.4/block
Pull NVMe updates from Sagi:

"Highlights includes:
 - controller reset and namespace scan races fixes
 - nvme discovery log change uevent support
 - naming improvements from Keith
 - multiple discovery controllers reject fix from James
 - some regular cleanups from various people"

* 'nvme-5.4' of git://git.infradead.org/nvme:
  nvmet: fix a wrong error status returned in error log page
  nvme: send discovery log page change events to userspace
  nvme: add uevent variables for controller devices
  nvme: enable aen regardless of the presence of I/O queues
  nvme-fabrics: allow discovery subsystems accept a kato
  nvmet: Use PTR_ERR_OR_ZERO() in nvmet_init_discovery()
  nvme: Remove redundant assignment of cq vector
  nvme: Assign subsys instance from first ctrl
  nvme: tcp: remove redundant assignment to variable ret
  nvme: include admin_q sync with nvme_sync_queues
  nvme: Treat discovery subsystems as unique subsystems
  nvme: fix ns removal hang when failing to revalidate due to a transient error
  nvme: make nvme_report_ns_ids propagate error back
  nvme: make nvme_identify_ns propagate errors back
  nvme: pass status to nvme_error_status
  nvme-fc: Fail transport errors with NVME_SC_HOST_PATH
  nvme-tcp: fail command with NVME_SC_HOST_PATH_ERROR send failed
  nvme: fail cancelled commands with NVME_SC_HOST_PATH_ERROR
2019-09-12 11:19:43 -06:00
Chris Wilson
16ffe73c18 drm/i915/pmu: Use GT parked for estimating RC6 while asleep
As we track when we put the GT device to sleep upon idling, we can use
that callback to sample the current rc6 counters and record the
timestamp for estimating samples after that point while asleep.

v2: Stick to using ktime_t
v3: Track user_wakerefs that interfere with the new
intel_gt_pm_wait_for_idle
v4: No need for parked/unparked estimation if !CONFIG_PM
v5: Keep timer park/unpark logic as was
v6: Refactor duplicated estimate/update rc6 logic
v7: Pull intel_get_pm_get_if_awake() out from the pmu->lock.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105010
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190912124813.19225-1-chris@chris-wilson.co.uk
2019-09-12 17:02:50 +01:00
Amit
5f8badbcbe nvmet: fix a wrong error status returned in error log page
When the command data_len cannot hold all the controller errors,
we should simply return as much errors as we can fit
instead of failing the command.

Signed-off-by: Amit Engel <amit.engel@dell.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Sagi Grimberg
85f8a4351d nvme: send discovery log page change events to userspace
If the controller supports discovery log page change events,
we want to enable it. When we see a discovery log change event
we will send it up to userspace and expect it to handle it.

Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Sagi Grimberg
a42f42e5bb nvme: add uevent variables for controller devices
When we send uevents to userspace, add controller specific
environment variables to uniquly identify the controller beyond
its device name.

This will be useful to address discovery log change events by
actually verifying that the discovery controller is indeed the
same as the device that generated the event.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Sagi Grimberg
93da40239b nvme: enable aen regardless of the presence of I/O queues
AENs in general are not related to the presence of I/O queues,
so enable them regardless. Note that the only exception is that
discovery controller will not support any of the requested AENs
and nvme_enable_aen will respect that and return, so it is still
safe to enable regardless.

Note it is safe to enable AENs even before the initial namespace
scanning as we have the scan operation in a workqueue context.

Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Sagi Grimberg
2d352df57b nvme-fabrics: allow discovery subsystems accept a kato
This modifies the behavior of discovery subsystems to accept
a kato as a preparation to support discovery log change
events. This also means that now every discovery controller
will have a default kato value, and for non-persistent connections
the host needs to pass in a zero kato value (keep_alive_tmo=0).

Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Markus Elfring
1179d337be nvmet: Use PTR_ERR_OR_ZERO() in nvmet_init_discovery()
Simplify this function implementation by using a known function.

Generated by: scripts/coccinelle/api/ptr_ret.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Israel Rukshin
97b3807e93 nvme: Remove redundant assignment of cq vector
The cq vector is already assigned with the correct value.

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Keith Busch
733e4b69d5 nvme: Assign subsys instance from first ctrl
The namespace disk names must be unique for the lifetime of the
subsystem. This was accomplished by using their parent subsystems'
instances which were allocated independently from the controllers
connected to that subsystem. This allowed name prefixes assigned to
namespaces to match a controller from an unrelated subsystem, and has
created confusion among users examining device nodes.

Ensure a namespace's subsystem instance never clashes with a controller
instance of another subsystem by transferring the instance ownership
to the parent subsystem from the first controller discovered in that
subsystem.

Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Minwoo Im <minwoo.im@samsung.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Colin Ian King
312910f4d2 nvme: tcp: remove redundant assignment to variable ret
The variable ret is being initialized with a value that is never read
and is being re-assigned immediately afterwards. The assignment is
redundant and hence can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:46 -07:00
Edmund Nadolski
03894b7a89 nvme: include admin_q sync with nvme_sync_queues
nvme_sync_queues currently syncs all namespace queues, but should
also sync the admin queue, if present.

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
James Smart
c26aa57202 nvme: Treat discovery subsystems as unique subsystems
Current code matches subnqn and collapses all controllers to the
same subnqn to a single subsystem structure. This is good for
recognizing multiple controllers for the same subsystem. But with
the well-known discovery subnqn, the subsystems aren't truly the
same subsystem. As such, subsystem specific rules, such as no
overlap of controller id, do not apply. With today's behavior, the
check for overlap of controller id can fail, preventing the new
discovery controller from being created.

When searching for like subsystem nqn, exclude the discovery nqn
from matching. This will result in each discovery controller being
attached to a unique subsystem structure.

Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Sagi Grimberg
205da24343 nvme: fix ns removal hang when failing to revalidate due to a transient error
If a controller reset is racing with a namespace revalidation, the
revalidation (admin) I/O will surely fail, but we should not remove the
namespace as we will execute the I/O when the controller is back up.
Same for spurious allocation errors (return -ENOMEM).

Fix this by checking the specific error code in nvme_revalidate_disk and
if it is a transient error (for example non DNR nvme statuses or
a negative ENOMEM as allocation failure), do not remove the namespace as
it will either recover when the controller is back up and schedule
a subsequent scan, or the controller is going away and the namespaces
will be removed anyways.

This fixes a hang namespace scanning racing with a controller reset and
also sporious I/O errors in path failover coditions where the
controller reset is racing with the namespace scan work with multipath
enabled.

Reported-by: Hannes Reinecke  <hare@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Sagi Grimberg
538af88ea7 nvme: make nvme_report_ns_ids propagate error back
Make the callers check the return status and propagate
back accordingly (casting to errno from a positive nvme status).
Also print the return status in nvme_report_ns_ids.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Sagi Grimberg
331813f687 nvme: make nvme_identify_ns propagate errors back
right now callers of nvme_identify_ns only know that it failed,
but don't know why. Make nvme_identify_ns propagate the error back.
Because nvme_submit_sync_cmd may return a positive status code, we
make nvme_identify_ns receive the id by reference and return that
status up the call chain, but make sure not to leak positive nvme
status codes to the upper layers.

Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Sagi Grimberg
2f9c173647 nvme: pass status to nvme_error_status
No need for the full blown request structure.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
James Smart
74bd8cbe7d nvme-fc: Fail transport errors with NVME_SC_HOST_PATH
NVME_SC_INTERNAL should indicate an internal controller errors
and not host transport errors. These errors will propagate to
upper layers (essentially nvme core) and be interpereted as
transport errors which should not be taken into account for
namespace state or condition.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Sagi Grimberg
1668601008 nvme-tcp: fail command with NVME_SC_HOST_PATH_ERROR send failed
This is a more appropriate error status for a transport error
detected by us (the host).

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Sagi Grimberg
1c0d12c0b1 nvme: fail cancelled commands with NVME_SC_HOST_PATH_ERROR
NVME_SC_ABORT_REQ means that the request was aborted due to
an abort command received. In our case, this is a transport
cancellation, so host pathing error is much more appropriate.

Also, convert NVME_SC_HOST_PATH_ERROR to BLK_STS_TRANSPORT for
such that callers can understand that the status is a transport
related error. This will be used by the ns scanning code to
understand if it got an error from the controller or that the
controller happens to be unreachable by the transport.

Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-12 08:50:45 -07:00
Jani Nikula
8d8b003185 drm/i915: convert device info num_pipes to pipe_mask
Replace device info number of pipes with a bit mask of available
pipes. This will prove handy in the future. There's still a bunch of
future work to do to actually allow a non-consecutive mask of pipes, but
it's a start. No functional changes.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911202908.19631-1-jani.nikula@intel.com
2019-09-12 18:21:38 +03:00
Lior David
50e107ff22 wil6210: ignore reset errors for FW during probe
There are special kinds of FW such as WMI only which
are used for testing, diagnostics and other specific
scenario.
Such FW is loaded during driver probe and the driver
disallows enabling any network interface, to avoid
operational issues.
In many cases it is used to debug early versions
of FW with new features, which sometimes fail
on startup.
Currently when such FW fails to load (for example,
because of init failure), the driver probe would fail
and shutdown the device making it difficult to debug
the early failure.
To fix this, ignore load failures in WMI only FW and
allow driver probe to succeed, making it possible to
continue and debug the FW load failure.

Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-12 18:07:56 +03:00
Lior David
055c8a71eb wil6210: fix RX short frame check
The short frame check in wil_sring_reap_rx_edma uses
skb->len which store the maximum frame length. Fix
this to use dmalen which is the actual length of
the received frame.

Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-12 18:07:45 +03:00
Lior David
0e698cd0b9 wil6210: use writel_relaxed in wil_debugfs_iomem_x32_set
writel_relaxed can be used in wil_debugfs_iomem_x32_set
since there is a wmb call immediately after.

Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-12 18:07:35 +03:00
Maya Erez
058b3f1124 wil6210: report boottime_ns in scan results
Call cfg80211_inform_bss_frame_data to report cfg80211 on the
boottime_ns in order to prevent the scan results filtering due to
aging.

Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-12 18:07:24 +03:00
Dedy Lansky
068f359aac wil6210: properly initialize discovery_expired_work
Upon driver rmmod, cancel_work_sync() can be invoked on
p2p.discovery_expired_work before this work struct was initialized.
This causes a WARN_ON with newer kernel version.

Add initialization of discovery_expired_work inside wil_vif_init().

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-12 18:07:14 +03:00