On some TUXEDO platforms, a Samsung 990 Evo NVMe leads to a high
power consumption in s2idle sleep (2-3 watts).
This patch applies 'Force No Simple Suspend' quirk to achieve a
sleep with a lower power consumption, typically around 0.5 watts.
Signed-off-by: Georg Gottleuber <ggo@tuxedocomputers.com>
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
If a drive is unable to create IO queues on the initial probe, a
subsequent reset will need to allocate the tagset if IO queue creation
is successful. Without this, blk_mq_update_nr_hw_queues will crash on a
bad pointer due to the invalid tagset.
Fixes: eac3ef2629 ("nvme-pci: split the initial probe from the rest path")
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
nvme_map_data() is called when request has physical segments, hence
the nvme_unmap_data() should have same condition to avoid dereference.
Fixes: 4aedb70543 ("nvme-pci: split metadata handling from nvme_map_data / nvme_unmap_data")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
pcie_aspm=off tells the kernel not to modify the ASPM configuration. This
setting does not guarantee that ASPM (Active State Power Management) is
disabled. Hence add pcie_port_pm=off. This disables power management for
all PCIe ports.
This patch has been tested on a workstation with a Samsung SSD 970 EVO Plus
NVMe SSD.
Fixes: 4641a8e6e1 ("nvme-pci: add trouble shooting steps for timeouts")
Cc: Keith Busch <kbusch@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
There is a hardware power-saving problem with the Lenovo N60z
board. When turn it on and leave it for 10 hours, there is a
20% chance that a nvme disk will not wake up until reboot.
Link: https://lore.kernel.org/all/2B5581C46AC6E335+9c7a81f1-05fb-4fd0-9fbb-108757c21628@uniontech.com
Signed-off-by: hmy <huanglin@uniontech.com>
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
If we allocate a bio that is larger than NVMe maximum request size,
attach integrity metadata to it and send it to the NVMe subsystem, the
integrity metadata will be corrupted.
Splitting the bio works correctly. The function bio_split will clone the
bio, trim the iterator of the first bio and advance the iterator of the
second bio.
However, the function rq_integrity_vec has a bug - it returns the first
vector of the bio's metadata and completely disregards the metadata
iterator that was advanced when the bio was split. Thus, the second bio
uses the same metadata as the first bio and this leads to metadata
corruption.
This commit changes rq_integrity_vec, so that it calls mp_bvec_iter_bvec
instead of returning the first vector. mp_bvec_iter_bvec reads the
iterator and uses it to build a bvec for the current position in the
iterator.
The "queue_max_integrity_segments(rq->q) > 1" check was removed, because
the updated rq_integrity_vec function works correctly with multiple
segments.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/49d1afaa-f934-6ed2-a678-e0d428c63a65@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Scheduling reset_work after a nvme subsystem reset is expected to fail
on pcie, but this also prevents potential handling the platform's pcie
services may provide that might successfully recovering the link without
re-enumeration. Such examples include AER, DPC, and power's EEH.
Provide a pci specific operation that safely initiates a subsystem
reset, and instead of scheduling reset work, read back the status
register to trigger a pcie read error.
Since this only affects pci, the other fabrics drivers subscribe to a
generic nvmf subsystem reset that is exactly the same as before. The
loop fabric doesn't use it because nvmet doesn't support setting that
property anyway.
And since we're using the magic NSSR value in two places now, provide a
symbolic define for it.
Reported-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Combining both creates an ambiguous cleanup scenario for the caller if
an error is returned: does the device reference need to be dropped or
did the error occur before the device was initialized? If an error
occurs after the device is added, then the existing cleanup routines
will leak memory.
Furthermore, the nvme core is taking it upon itself to free the device's
kobj name under certain conditions rather than go through the core
device API. We shouldn't be peaking into these implementation details.
Split the device initialization from the addition to make it easier to
know the error handling actions, fix the existing memory leaks, and stop
the device layering violations.
Link: https://lore.kernel.org/linux-nvme/c4050a37-ecc9-462c-9772-65e25166f439@grimberg.me/
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
bio_vec start offset may be relatively large particularly when large
folio gets added to the bio. A bigger offset will result in avoiding the
single-segment mapping optimization and end up using expensive
mempool_alloc further.
Rather than using absolute value, adjust bv_offset by
NVME_CTRL_PAGE_SIZE while checking if segment can be fitted into one/two
PRP entries.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kundan Kumar <kundan.kumar@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Sandisk SN530 NVMe drives have broken MSIs. On systems without MSI-X
support, all commands time out resulting in the following message:
nvme nvme0: I/O tag 12 (100c) QID 0 timeout, completion polled
These timeouts cause the boot to take an excessively-long time (over 20
minutes) while the initial command queue is flushed.
Address this by adding a quirk for drives with buggy MSIs. The lspci
output for this device (recorded on a system with MSI-X support) is:
02:00.0 Non-Volatile memory controller: Sandisk Corp Device 5008 (rev 01) (prog-if 02 [NVM Express])
Subsystem: Sandisk Corp Device 5008
Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
Memory at f7e00000 (64-bit, non-prefetchable) [size=16K]
Memory at f7e04000 (64-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 3
Capabilities: [90] MSI: Enable- Count=1/32 Maskable- 64bit+
Capabilities: [b0] MSI-X: Enable+ Count=17 Masked-
Capabilities: [c0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [150] Device Serial Number 00-00-00-00-00-00-00-00
Capabilities: [1b8] Latency Tolerance Reporting
Capabilities: [300] Secondary PCI Express
Capabilities: [900] L1 PM Substates
Kernel driver in use: nvme
Kernel modules: nvme
Cc: <stable@vger.kernel.org>
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Christoph Hellwig <hch@lst.de>
While I/O is running, if the pci bus error occurs then
in-flight I/O can not complete. Worst, if at this time,
user (logically) hot-unplug the nvme disk then the
nvme_remove() code path can't forward progress until
in-flight I/O is cancelled. So these sequence of events
may potentially hang hot-unplug code path indefinitely.
This patch helps cancel the pending/in-flight I/O from the
nvme request timeout handler in case the nvme controller
is in the terminal (DEAD/DELETING/DELETING_NOIO) state and
that helps nvme_remove() code path forward progress and
finish successfully.
Link: https://lore.kernel.org/all/199be893-5dfa-41e5-b6f2-40ac90ebccc4@linux.ibm.com/
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit adds NVME_QUIRK_NO_DEEPEST_PS and NVME_QUIRK_BOGUS_NID for
device [126f:2262], which appears to be a generic VID:PID pair used for
many SSDs based on the Silicon Motion SM2262/SM2262EN controller.
Two of my SSDs with this VID:PID pair exhibit the same behavior:
* They frequently have trouble exiting the deepest power state (5),
resulting in the entire disk unresponsive.
Verified by setting nvme_core.default_ps_max_latency_us=10000 and
observing them behaving normally.
* They produce all-zero nguid and eui64 with `nvme id-ns` command.
The offending products are:
* HP SSD EX950 1TB
* HIKVISION C2000Pro 2TB
Signed-off-by: Jiawei Fu <i@ibugone.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
nvme_opcode_str() currently supports admin, IO, and fabrics commands.
However, fabrics commands aren't allowed for the pci transport.
Currently the pci caller passes 0 as the fctype,
which means any fabrics command would be displayed as "Property Set".
Move fabrics command support into a function nvme_fabrics_opcode_str()
and remove the fctype argument to nvme_opcode_str().
This way, a fabrics command will display as "Unknown" for pci.
Convert the rdma and tcp transports to use nvme_fabrics_opcode_str().
Signed-off-by: Caleb Sander <csander@purestorage.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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Merge tag 'for-6.8/block-2024-01-18' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- tcp, fc, and rdma target fixes (Maurizio, Daniel, Hannes,
Christoph)
- discard fixes and improvements (Christoph)
- timeout debug improvements (Keith, Max)
- various cleanups (Daniel, Max, Giuxen)
- trace event string fixes (Arnd)
- shadow doorbell setup on reset fix (William)
- a write zeroes quirk for SK Hynix (Jim)
- MD pull request via Song:
- Sparse warning since v6.0 (Bart)
- /proc/mdstat regression since v6.7 (Yu Kuai)
- Use symbolic error value (Christian)
- IO Priority documentation update (Christian)
- Fix for accessing queue limits without having entered the queue
(Christoph, me)
- Fix for loop dio support (Christoph)
- Move null_blk off deprecated ida interface (Christophe)
- Ensure nbd initializes full msghdr (Eric)
- Fix for a regression with the folio conversion, which is now easier
to hit because of an unrelated change (Matthew)
- Remove redundant check in virtio-blk (Li)
- Fix for a potential hang in sbitmap (Ming)
- Fix for partial zone appending (Damien)
- Misc changes and fixes (Bart, me, Kemeng, Dmitry)
* tag 'for-6.8/block-2024-01-18' of git://git.kernel.dk/linux: (45 commits)
Documentation: block: ioprio: Update schedulers
loop: fix the the direct I/O support check when used on top of block devices
blk-mq: Remove the hctx 'run' debugfs attribute
nbd: always initialize struct msghdr completely
block: Fix iterating over an empty bio with bio_for_each_folio_all
block: bio-integrity: fix kcalloc() arguments order
virtio_blk: remove duplicate check if queue is broken in virtblk_done
sbitmap: remove stale comment in sbq_calc_wake_batch
block: Correct a documentation comment in blk-cgroup.c
null_blk: Remove usage of the deprecated ida_simple_xx() API
block: ensure we hold a queue reference when using queue limits
blk-mq: rename blk_mq_can_use_cached_rq
block: print symbolic error name instead of error code
blk-mq: fix IO hang from sbitmap wakeup race
nvmet-rdma: avoid circular locking dependency on install_queue()
nvmet-tcp: avoid circular locking dependency on install_queue()
nvme-pci: set doorbell config before unquiescing
block: fix partial zone append completion handling in req_bio_endio()
block/iocost: silence warning on 'last_period' potentially being unused
md/raid1: Use blk_opf_t for read and write operations
...
During resets, if queues are unquiesced first, then the host can submit
IOs to the controller using shadow doorbell logic but the controller
won't be aware. This can lead to necessary MMIO doorbells from being
not issued, causing requests to be delayed and timed-out.
Signed-off-by: William Butler <wab@google.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Kernel configs don't necessarily have opcode decoding, and some opcodes
are not even decodable. It is still interesting for debugging SSD issues
to know what opcode is timing out, what request type it came from, and
the data size (if applicable).
Also print the command_id along side blk-mq's tag to help match commands
with protocol wire traces and firmware logs,
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
SK Hynix BC901 drive write zero will cause Chromebook takes more than 20 mins to switch to developer mode
"disable write zeroes" can fix this issue and Sk Hynix has been verified.
Signed-off-by: Jim.Lin <jim.lin@siliconmotion.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Some Kingston NV1 and A2000 are wasting a lot of power on specific TUXEDO
platforms in s2idle sleep if 'Simple Suspend' is used.
This patch applies a new quirk 'Force No Simple Suspend' to achieve a
low power sleep without 'Simple Suspend'.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Georg Gottleuber <ggo@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
A different CPU may be setting the ctrl->state value, so ensure proper
barriers to prevent optimizing to a stale state. Normally it isn't a
problem to observe the wrong state as it is merely advisory to take a
quicker path during initialization and error recovery, but seeing an old
state can report unexpected ENETRESET errors when a reset request was in
fact successful.
Reported-by: Minh Hoang <mh2022@meta.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
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Merge tag 'for-6.7/block-2023-10-30' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- Improvements to the queue_rqs() support, and adding null_blk support
for that as well (Chengming)
- Series improving badblocks support (Coly)
- Key store support for sed-opal (Greg)
- IBM partition string handling improvements (Jan)
- Make number of ublk devices supported configurable (Mike)
- Cancelation improvements for ublk (Ming)
- MD pull requests via Song:
- Handle timeout in md-cluster, by Denis Plotnikov
- Cleanup pers->prepare_suspend, by Yu Kuai
- Rewrite mddev_suspend(), by Yu Kuai
- Simplify md_seq_ops, by Yu Kuai
- Reduce unnecessary locking array_state_store(), by Mariusz
Tkaczyk
- Make rdev add/remove independent from daemon thread, by Yu Kuai
- Refactor code around quiesce() and mddev_suspend(), by Yu Kuai
- NVMe pull request via Keith:
- nvme-auth updates (Mark)
- nvme-tcp tls (Hannes)
- nvme-fc annotaions (Kees)
- Misc cleanups and improvements (Jiapeng, Joel)
* tag 'for-6.7/block-2023-10-30' of git://git.kernel.dk/linux: (95 commits)
block: ublk_drv: Remove unused function
md: cleanup pers->prepare_suspend()
nvme-auth: allow mixing of secret and hash lengths
nvme-auth: use transformed key size to create resp
nvme-auth: alloc nvme_dhchap_key as single buffer
nvmet-tcp: use 'spin_lock_bh' for state_lock()
powerpc/pseries: PLPKS SED Opal keystore support
block: sed-opal: keystore access for SED Opal keys
block:sed-opal: SED Opal keystore
ublk: simplify aborting request
ublk: replace monitor with cancelable uring_cmd
ublk: quiesce request queue when aborting queue
ublk: rename mm_lock as lock
ublk: move ublk_cancel_dev() out of ub->mutex
ublk: make sure io cmd handled in submitter task context
ublk: don't get ublk device reference in ublk_abort_queue()
ublk: Make ublks_max configurable
ublk: Limit dev_id/ub_number values
md-cluster: check for timeout while a new disk adding
nvme: rework NVME_AUTH Kconfig selection
...
Now we update driver tags request table in blk_mq_get_driver_tag(),
so the driver that support queue_rqs() have to update that inflight
table by itself.
Move it to blk_mq_start_request(), which is a better place where
we setup the deadline for request timeout check. And it's just
where the request becomes inflight.
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230913151616.3164338-5-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- nvme-tcp iov len fix (Varun)
- nvme-hwmon const qualifier for safety (Krzysztof)
- nvme-fc null pointer checks (Nigel)
- nvme-pci no numa node fix (Pratyush)
- nvme timeout fix for non-compliant controllers (Keith)
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Merge tag 'nvme-6.6-2023-09-14' of git://git.infradead.org/nvme into block-6.6
Pull NVMe fixes from Keith:
"nvme fixes for Linux 6.6
- nvme-tcp iov len fix (Varun)
- nvme-hwmon const qualifier for safety (Krzysztof)
- nvme-fc null pointer checks (Nigel)
- nvme-pci no numa node fix (Pratyush)
- nvme timeout fix for non-compliant controllers (Keith)"
* tag 'nvme-6.6-2023-09-14' of git://git.infradead.org/nvme:
nvme: avoid bogus CRTO values
nvme-pci: do not set the NUMA node of device if it has none
nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()
nvme: host: hwmon: constify pointers to hwmon_channel_info
nvmet-tcp: pass iov_len instead of sg->length to bvec_set_page()
If a device has no NUMA node information associated with it, the driver
puts the device in node first_memory_node (say node 0). Not having a
NUMA node and being associated with node 0 are completely different
things and it makes little sense to mix the two.
Signed-off-by: Pratyush Yadav <ptyadav@amazon.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
The Samsung PM9B1 512G SSD found in some Lenovo Yoga 7 14ARB7 laptop units
reports eui as 0001000200030004 when resuming from s2idle, causing the
device to be removed with this error in dmesg:
nvme nvme0: identifiers changed for nsid 1
To fix this, add a quirk to ignore namespace identifiers for this device.
Signed-off-by: August Wikerfors <git@augustwikerfors.se>
Signed-off-by: Keith Busch <kbusch@kernel.org>
DMA direction should be taken in dma_unmap_page() for unmapping integrity
data.
Fix this DMA direction, and reported in Guangwu's test.
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Fixes: 4aedb70543 ("nvme-pci: split metadata handling from nvme_map_data / nvme_unmap_data")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
If any error handling that disables the controller fails to queue the
reset work, like if the state changed to disconnected inbetween, then
the failed teardown needs to unquiesce the queues since it's no longer
paired with reset_work. Just make sure that the controller can be put
into a resetting state prior to starting the disable so that no other
handling can change the queue states while recovery is happening.
Reported-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Add the quirk as SM953 is reporting bogus namespace ID.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217593
Reported-by: Clemens Springsguth <cspringsguth@gmail.com>
Tested-by: Clemens Springsguth <cspringsguth@gmail.com>
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
If the controller is not in a RESETTING state at the point of reset
work, we have to conclude the controller is being deleted. Go to the
cleanup on this condition to ensure proper pairing of request_queue
quiesce state.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Timeouts during reset will set the controller for failure, preventing
the state change to LIVE. Ensure all timeout work is synced after the
controller disabling completes to ensure we don't have any other tasks
messing with any namespace request_queue's.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
The reset work is called on quiesced IO queues, so ensure these are
unquiesced after a failed reset to flush out any pending requests.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- Various cleanups all around (Irvin, Chaitanya, Christophe)
- Better struct packing (Christophe JAILLET)
- Reduce controller error logs for optional commands (Keith)
- Support for >=64KiB block sizes (Daniel Gomez)
- Fabrics fixes and code organization (Max, Chaitanya, Daniel
Wagner)
- bcache updates via Coly:
- Fix a race at init time (Mingzhe Zou)
- Misc fixes and cleanups (Andrea, Thomas, Zheng, Ye)
- use page pinning in the block layer for dio (David)
- convert old block dio code to page pinning (David, Christoph)
- cleanups for pktcdvd (Andy)
- cleanups for rnbd (Guoqing)
- use the unchecked __bio_add_page() for the initial single page
additions (Johannes)
- fix overflows in the Amiga partition handling code (Michael)
- improve mq-deadline zoned device support (Bart)
- keep passthrough requests out of the IO schedulers (Christoph, Ming)
- improve support for flush requests, making them less special to deal
with (Christoph)
- add bdev holder ops and shutdown methods (Christoph)
- fix the name_to_dev_t() situation and use cases (Christoph)
- decouple the block open flags from fmode_t (Christoph)
- ublk updates and cleanups, including adding user copy support (Ming)
- BFQ sanity checking (Bart)
- convert brd from radix to xarray (Pankaj)
- constify various structures (Thomas, Ivan)
- more fine grained persistent reservation ioctl capability checks
(Jingbo)
- misc fixes and cleanups (Arnd, Azeem, Demi, Ed, Hengqi, Hou, Jan,
Jordy, Li, Min, Yu, Zhong, Waiman)
* tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux: (266 commits)
scsi/sg: don't grab scsi host module reference
ext4: Fix warning in blkdev_put()
block: don't return -EINVAL for not found names in devt_from_devname
cdrom: Fix spectre-v1 gadget
block: Improve kernel-doc headers
blk-mq: don't insert passthrough request into sw queue
bsg: make bsg_class a static const structure
ublk: make ublk_chr_class a static const structure
aoe: make aoe_class a static const structure
block/rnbd: make all 'class' structures const
block: fix the exclusive open mask in disk_scan_partitions
block: add overflow checks for Amiga partition support
block: change all __u32 annotations to __be32 in affs_hardblocks.h
block: fix signed int overflow in Amiga partition support
block: add capacity validation in bdev_add_partition()
block: fine-granular CAP_SYS_ADMIN for Persistent Reservation
block: disallow Persistent Reservation on partitions
reiserfs: fix blkdev_put() warning from release_journal_dev()
block: fix wrong mode for blkdev_get_by_dev() from disk_scan_partitions()
block: document the holder argument to blkdev_get_by_path
...
Erase the superfluous line that retrieves the nvme_dev.
Signed-off-by: Irvin Cote <irvincoteg@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Pull NVMe fixes from Keith:
"nvme fixes for Linux 6.4
- More device quirks (Sagi, Hristo, Adrian, Daniel)
- Controller delete race (Maurizo)
- Multipath cleanup fix (Christoph)"
* tag 'nvme-6.4-2023-05-18' of git://git.infradead.org/nvme:
nvme-pci: Add quirk for Teamgroup MP33 SSD
nvme: do not let the user delete a ctrl before a complete initialization
nvme-multipath: don't call blk_mark_disk_dead in nvme_mpath_remove_disk
nvme-pci: clamp max_hw_sectors based on DMA optimized limitation
nvme-pci: add quirk for missing secondary temperature thresholds
nvme-pci: add NVME_QUIRK_BOGUS_NID for HS-SSD-FUTURE 2048G
Add a quirk for Teamgroup MP33 that reports duplicate ids for disk.
Signed-off-by: Daniel Smith <dansmith@ds.gy>
[kch: patch formatting]
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by: Daniel Smith <dansmith@ds.gy>
Signed-off-by: Keith Busch <kbusch@kernel.org>
When running the fio test on a 448-core AMD server + a NVME disk,
a soft lockup or a hard lockup call trace is shown:
[soft lockup]
watchdog: BUG: soft lockup - CPU#126 stuck for 23s! [swapper/126:0]
RIP: 0010:_raw_spin_unlock_irqrestore+0x21/0x50
...
Call Trace:
<IRQ>
fq_flush_timeout+0x7d/0xd0
? __pfx_fq_flush_timeout+0x10/0x10
call_timer_fn+0x2e/0x150
run_timer_softirq+0x48a/0x560
? __pfx_fq_flush_timeout+0x10/0x10
? clockevents_program_event+0xaf/0x130
__do_softirq+0xf1/0x335
irq_exit_rcu+0x9f/0xd0
sysvec_apic_timer_interrupt+0xb4/0xd0
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1f/0x30
...
Obvisouly, fq_flush_timeout spends over 20 seconds. Here is ftrace log:
| fq_flush_timeout() {
| fq_ring_free() {
| put_pages_list() {
0.170 us | free_unref_page_list();
0.810 us | }
| free_iova_fast() {
| free_iova() {
* 85622.66 us | _raw_spin_lock_irqsave();
2.860 us | remove_iova();
0.600 us | _raw_spin_unlock_irqrestore();
0.470 us | lock_info_report();
2.420 us | free_iova_mem.part.0();
* 85638.27 us | }
* 85638.84 us | }
| put_pages_list() {
0.230 us | free_unref_page_list();
0.470 us | }
... ...
$ 31017069 us | }
Most of cores are under lock contention for acquiring iova_rbtree_lock due
to the iova flush queue mechanism.
[hard lockup]
NMI watchdog: Watchdog detected hard LOCKUP on cpu 351
RIP: 0010:native_queued_spin_lock_slowpath+0x2d8/0x330
Call Trace:
<IRQ>
_raw_spin_lock_irqsave+0x4f/0x60
free_iova+0x27/0xd0
free_iova_fast+0x4d/0x1d0
fq_ring_free+0x9b/0x150
iommu_dma_free_iova+0xb4/0x2e0
__iommu_dma_unmap+0x10b/0x140
iommu_dma_unmap_sg+0x90/0x110
dma_unmap_sg_attrs+0x4a/0x50
nvme_unmap_data+0x5d/0x120 [nvme]
nvme_pci_complete_batch+0x77/0xc0 [nvme]
nvme_irq+0x2ee/0x350 [nvme]
? __pfx_nvme_pci_complete_batch+0x10/0x10 [nvme]
__handle_irq_event_percpu+0x53/0x1a0
handle_irq_event_percpu+0x19/0x60
handle_irq_event+0x3d/0x60
handle_edge_irq+0xb3/0x210
__common_interrupt+0x7f/0x150
common_interrupt+0xc5/0xf0
</IRQ>
<TASK>
asm_common_interrupt+0x2b/0x40
...
ftrace shows fq_ring_free spends over 10 seconds [1]. Again, most of
cores are under lock contention for acquiring iova_rbtree_lock due
to the iova flush queue mechanism.
[Root Cause]
The root cause is that the max_hw_sectors_kb of nvme disk (mdts=10)
is 4096kb, which streaming DMA mappings cannot benefit from the
scalable IOVA mechanism introduced by the commit 9257b4a206
("iommu/iova: introduce per-cpu caching to iova allocation") if
the length is greater than 128kb.
To fix the lock contention issue, clamp max_hw_sectors based on
DMA optimized limitation in order to leverage scalable IOVA mechanism.
Note: The issue does not happen with another NVME disk (mdts = 5
and max_hw_sectors_kb = 128)
[1] https://gist.github.com/AdrianHuang/bf8ec7338204837631fbdaed25d19cc4
Suggested-by: Keith Busch <kbusch@kernel.org>
Reported-and-tested-by: Jiwei Sun <sunjw10@lenovo.com>
Signed-off-by: Adrian Huang <ahuang12@lenovo.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
On Kingston KC3000 and Kingston FURY Renegade (both have the same PCI
IDs) accessing temp3_{min,max} fails with an invalid field error (note
that there is no problem setting the thresholds for temp1).
This contradicts the NVM Express Base Specification 2.0b, page 292:
The over temperature threshold and under temperature threshold
features shall be implemented for all implemented temperature sensors
(i.e., all Temperature Sensor fields that report a non-zero value).
Define NVME_QUIRK_NO_SECONDARY_TEMP_THRESH that disables the thresholds
for all but the composite temperature and set it for this device.
Signed-off-by: Hristo Venev <hristo@venev.name>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Merge tag 'for-6.4/block-2023-04-21' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- drbd patches, bringing us closer to unifying the out-of-tree version
and the in tree one (Andreas, Christoph)
- support for auto-quiesce for the s390 dasd driver (Stefan)
- MD pull request via Song:
- md/bitmap: Optimal last page size (Jon Derrick)
- Various raid10 fixes (Yu Kuai, Li Nan)
- md: add error_handlers for raid0 and linear (Mariusz Tkaczyk)
- NVMe pull request via Christoph:
- Drop redundant pci_enable_pcie_error_reporting (Bjorn Helgaas)
- Validate nvmet module parameters (Chaitanya Kulkarni)
- Fence TCP socket on receive error (Chris Leech)
- Fix async event trace event (Keith Busch)
- Minor cleanups (Chaitanya Kulkarni, zhenwei pi)
- Fix and cleanup nvmet Identify handling (Damien Le Moal,
Christoph Hellwig)
- Fix double blk_mq_complete_request race in the timeout handler
(Lei Yin)
- Fix irq locking in nvme-fcloop (Ming Lei)
- Remove queue mapping helper for rdma devices (Sagi Grimberg)
- use structured request attribute checks for nbd (Jakub)
- fix blk-crypto race conditions between keyslot management (Eric)
- add sed-opal support for reading read locking range attributes
(Ondrej)
- make fault injection configurable for null_blk (Akinobu)
- clean up the request insertion API (Christoph)
- clean up the queue running API (Christoph)
- blkg config helper cleanups (Tejun)
- lazy init support for blk-iolatency (Tejun)
- various fixes and tweaks to ublk (Ming)
- remove hybrid polling. It hasn't really been useful since we got
async polled IO support, and these days we don't support sync polled
IO at all (Keith)
- misc fixes, cleanups, improvements (Zhong, Ondrej, Colin, Chengming,
Chaitanya, me)
* tag 'for-6.4/block-2023-04-21' of git://git.kernel.dk/linux: (118 commits)
nbd: fix incomplete validation of ioctl arg
ublk: don't return 0 in case of any failure
sed-opal: geometry feature reporting command
null_blk: Always check queue mode setting from configfs
block: ublk: switch to ioctl command encoding
blk-mq: fix the blk_mq_add_to_requeue_list call in blk_kick_flush
block, bfq: Fix division by zero error on zero wsum
fault-inject: fix build error when FAULT_INJECTION_CONFIGFS=y and CONFIGFS_FS=m
block: store bdev->bd_disk->fops->submit_bio state in bdev
block: re-arrange the struct block_device fields for better layout
md/raid5: remove unused working_disks variable
md/raid10: don't call bio_start_io_acct twice for bio which experienced read error
md/raid10: fix memleak of md thread
md/raid10: fix memleak for 'conf->bio_split'
md/raid10: fix leak of 'r10bio->remaining' for recovery
md/raid10: don't BUG_ON() in raise_barrier()
md: fix soft lockup in status_resync
md: add error_handlers for raid0 and linear
md: Use optimal I/O size for last bitmap page
md: Fix types in sb writer
...
Added a quirk to fix the TeamGroup T-Force Cardea Zero Z330 SSDs reporting
duplicate NGUIDs.
Signed-off-by: Duy Truong <dory@dory.moe>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages. Since f26e58bf6f ("PCI/AER: Enable error reporting when AER is
native"), the PCI core does this for all devices during enumeration, so the
driver doesn't need to do it itself.
Remove the redundant pci_enable_pcie_error_reporting() call from the
driver. Also remove the corresponding pci_disable_pcie_error_reporting()
from the driver .remove() path.
Note that this only controls ERR_* Messages from the device. An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
In case the nvme_probe teardown path is triggered the ctrl ref count does
not reach 0 thus creating a memory leak upon failure of nvme_probe.
Signed-off-by: Irvin Cote <irvincoteg@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Merge tag 'for-6.3/block-2023-02-16' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe updates via Christoph:
- Small improvements to the logging functionality (Amit Engel)
- Authentication cleanups (Hannes Reinecke)
- Cleanup and optimize the DMA mapping cod in the PCIe driver
(Keith Busch)
- Work around the command effects for Format NVM (Keith Busch)
- Misc cleanups (Keith Busch, Christoph Hellwig)
- Fix and cleanup freeing single sgl (Keith Busch)
- MD updates via Song:
- Fix a rare crash during the takeover process
- Don't update recovery_cp when curr_resync is ACTIVE
- Free writes_pending in md_stop
- Change active_io to percpu
- Updates to drbd, inching us closer to unifying the out-of-tree driver
with the in-tree one (Andreas, Christoph, Lars, Robert)
- BFQ update adding support for multi-actuator drives (Paolo, Federico,
Davide)
- Make brd compliant with REQ_NOWAIT (me)
- Fix for IOPOLL and queue entering, fixing stalled IO waiting on
timeouts (me)
- Fix for REQ_NOWAIT with multiple bios (me)
- Fix memory leak in blktrace cleanup (Greg)
- Clean up sbitmap and fix a potential hang (Kemeng)
- Clean up some bits in BFQ, and fix a bug in the request injection
(Kemeng)
- Clean up the request allocation and issue code, and fix some bugs
related to that (Kemeng)
- ublk updates and fixes:
- Add support for unprivileged ublk (Ming)
- Improve device deletion handling (Ming)
- Misc (Liu, Ziyang)
- s390 dasd fixes (Alexander, Qiheng)
- Improve utility of request caching and fixes (Anuj, Xiao)
- zoned cleanups (Pankaj)
- More constification for kobjs (Thomas)
- blk-iocost cleanups (Yu)
- Remove bio splitting from drivers that don't need it (Christoph)
- Switch blk-cgroups to use struct gendisk. Some of this is now
incomplete as select late reverts were done. (Christoph)
- Add bvec initialization helpers, and convert callers to use that
rather than open-coding it (Christoph)
- Misc fixes and cleanups (Jinke, Keith, Arnd, Bart, Li, Martin,
Matthew, Ulf, Zhong)
* tag 'for-6.3/block-2023-02-16' of git://git.kernel.dk/linux: (169 commits)
brd: use radix_tree_maybe_preload instead of radix_tree_preload
block: use proper return value from bio_failfast()
block: bio-integrity: Copy flags when bio_integrity_payload is cloned
block: Fix io statistics for cgroup in throttle path
brd: mark as nowait compatible
brd: check for REQ_NOWAIT and set correct page allocation mask
brd: return 0/-error from brd_insert_page()
block: sync mixed merged request's failfast with 1st bio's
Revert "blk-cgroup: pin the gendisk in struct blkcg_gq"
Revert "blk-cgroup: pass a gendisk to blkg_lookup"
Revert "blk-cgroup: delay blk-cgroup initialization until add_disk"
Revert "blk-cgroup: delay calling blkcg_exit_disk until disk_release"
Revert "blk-cgroup: move the cgroup information to struct gendisk"
nvme-pci: remove iod use_sgls
nvme-pci: fix freeing single sgl
block: ublk: check IO buffer based on flag need_get_data
s390/dasd: Fix potential memleak in dasd_eckd_init()
s390/dasd: sort out physical vs virtual pointers usage
block: Remove the ALLOC_CACHE_SLACK constant
block: make kobj_type structures constant
...
Georg Gottleuber
Keith Busch
Leon Romanovsky
Bart Van Assche
WangYuli
Jens Axboe
Mikulas Patocka
Kundan Kumar
Sean Anderson
Nilay Shroff
Jiawei Fu (iBug)
Caleb Sander
Chaitanya Kulkarni
Linus Torvalds
William Butler
Jim.Lin
Chengming Zhou
Pratyush Yadav
August Wikerfors
Ming Lei
Pankaj Raghav
Irvin Cote
Tatsuki Sugiura
Daniel Smith
Adrian Huang
Hristo Venev
Sagi Grimberg
Duy Truong
Bjorn Helgaas
Juraj Pecigos
Philipp Geulen
Elmer Miroslav Mosher Golovin