- 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)
-----BEGIN PGP SIGNATURE-----
iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAmPh7B8LHGhjaEBsc3Qu
ZGUACgkQD55TZVIEUYOIgxAAtLJaXzRFrKF6mK6j2PcXulJDVcayQYIiEBBTn4Li
DkUr7QBqzRf+Y6TlkycNlAKroUa/tUEAFZWLpRf2t4Vvx2wqCMJGfJGz5/cJa+cs
wM3T/9qijq+FG1t/ZA8L774vDUnwDHmU7WJgdva2xnXrzFGnh0GqgLyOS37G5Mqh
kU3iQgMo+089IHmvD10IZjFjaWifbxQbC4gKxno53JYxvn3Ktu57PxBI/jPKIsbT
yQj21LvCZwDIehpQqtCieLjjNrj1g130hYxplcLWB2D4BkC0rcqTCh+Jb7RtprzP
wHrZig1zAA7IzGXyouQymi56HJiCAdTOgynVrg4j/VmQIqE3+H/KKQ0n7xMGEqIM
YGO3CXuyS3DcX3SefuHroZapl95EbnF/EBHE1gGG49hPY2SoEGHlZwou3Hu/mWbm
lOSuLFCCwvahKC6SzGr7+Vk5LgrwzAhl2Nwf9i1B+q0mnBHxiOXCeGmrtMde63W0
qlpBhbwquoVbdia3oEvLfos7QZmw1eoyL4MWF6IG+rqxut+3A9eoyIAR61XLepny
0yr7Kn0hZGtiZPJXhTG43p9hoVUP+FoihlwyGpZ8O2/HQFXZOmWRBPBF+L3mL/u2
TPeiDEycWx3MtiGENts9UzaxEz9mo1pcky3vcsj8Ch4qYoYfFOmUd5F8Ay+nBETX
VbQ=
=yiTz
-----END PGP SIGNATURE-----
Merge tag 'nvme-6.3-2023-02-07' of git://git.infradead.org/nvme into for-6.3/block
Pull NVMe updates from Christoph:
"nvme updates for Linux 6.3
- 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)"
* tag 'nvme-6.3-2023-02-07' of git://git.infradead.org/nvme:
nvme: mask CSE effects for security receive
nvme: always initialize known command effects
nvmet: for nvme admin set_features cmd, call nvmet_check_data_len_lte()
nvme-tcp: add additional info for nvme_tcp_timeout log
nvme: add nvme_opcode_str function for all nvme cmd types
nvme: remove nvme_execute_passthru_rq
nvme-pci: place descriptor addresses in iod
nvme-pci: use mapped entries for sgl decision
nvme-pci: remove SGL segment descriptors
nvme-auth: don't use NVMe status codes
nvme-fabrics: clarify AUTHREQ result handling
-----BEGIN PGP SIGNATURE-----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=/+rE
-----END PGP SIGNATURE-----
Merge tag 'block-6.2-2023-02-03' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"A bit bigger than I'd like at this point, but mostly a bunch of little
fixes. In detail:
- NVMe pull request via Christoph:
- Fix a missing queue put in nvmet_fc_ls_create_association
(Amit Engel)
- Clear queue pointers on tag_set initialization failure
(Maurizio Lombardi)
- Use workqueue dedicated to authentication (Shin'ichiro
Kawasaki)
- Fix for an overflow in ublk (Liu)
- Fix for leaking a queue reference in block cgroups (Ming)
- Fix for a use-after-free in BFQ (Yu)"
* tag 'block-6.2-2023-02-03' of git://git.kernel.dk/linux:
blk-cgroup: don't update io stat for root cgroup
nvme-auth: use workqueue dedicated to authentication
nvme: clear the request_queue pointers on failure in nvme_alloc_io_tag_set
nvme: clear the request_queue pointers on failure in nvme_alloc_admin_tag_set
nvme-fc: fix a missing queue put in nvmet_fc_ls_create_association
block: Fix the blk_mq_destroy_queue() documentation
block: ublk: extending queue_size to fix overflow
block, bfq: fix uaf for bfqq in bic_set_bfqq()
Use the bvec_set_virt helper to initialize the special_vec.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The nvme driver will freeze the IO queues in response to an admin
command with CSE bits set. These bits notify the host that the command
that's about to be executed needs to be done exclusively, hence the
freeze.
The Security Receive command is often reported by multiple vendors with
CSE bits set. The reason for this is that the result depends on the
previous Security Send. This has nothing to do with IO queues, though,
so the driver is taking an overly cautious response to seeing this
passthrough command, while unable to fufill the intended admin queue
action.
Rather than freeze IO during this harmless command, mask off the
effects. This freezing is observed to cause IO latency spikes when host
software periodically validates the security state of the drives.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Instead of appending command effects flags per IO, set the known effects
flags the driver needs to react to just once during initial setup.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
After moving the nvme_passthru_end call to the callers of
nvme_execute_passthru_rq, this function has become quite pointless,
so remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
In nvme_alloc_io_tag_set(), the connect_q pointer should be set to NULL
in case of error to avoid potential invalid pointer dereferences.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
If nvme_alloc_admin_tag_set() fails, the admin_q and fabrics_q pointers
are left with an invalid, non-NULL value. Other functions may then check
the pointers and dereference them, e.g. in
nvme_probe() -> out_disable: -> nvme_dev_remove_admin().
Fix the bug by setting admin_q and fabrics_q to NULL in case of error.
Also use the set variable to free the tag_set as ctrl->admin_tagset isn't
initialized yet.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The namespace head saves the Command Set Indicator enum, so use that
instead of the Command Set Selected. The two values are not the same.
Fixes: 831ed60c2a ("nvme: also return I/O command effects from nvme_command_effects")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
-----BEGIN PGP SIGNATURE-----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=cqhz
-----END PGP SIGNATURE-----
Merge tag 'block-6.2-2022-12-29' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"Mostly just NVMe, but also a single fixup for BFQ for a regression
that happened during the merge window. In detail:
- NVMe pull requests via Christoph:
- Fix doorbell buffer value endianness (Klaus Jensen)
- Fix Linux vs NVMe page size mismatch (Keith Busch)
- Fix a potential use memory access beyong the allocation limit
(Keith Busch)
- Fix a multipath vs blktrace NULL pointer dereference (Yanjun
Zhang)
- Fix various problems in handling the Command Supported and
Effects log (Christoph Hellwig)
- Don't allow unprivileged passthrough of commands that don't
transfer data but modify logical block content (Christoph
Hellwig)
- Add a features and quirks policy document (Christoph Hellwig)
- Fix some really nasty code that was correct but made smatch
complain (Sagi Grimberg)
- Use-after-free regression in BFQ from this merge window (Yu)"
* tag 'block-6.2-2022-12-29' of git://git.kernel.dk/linux:
nvme-auth: fix smatch warning complaints
nvme: consult the CSE log page for unprivileged passthrough
nvme: also return I/O command effects from nvme_command_effects
nvmet: don't defer passthrough commands with trivial effects to the workqueue
nvmet: set the LBCC bit for commands that modify data
nvmet: use NVME_CMD_EFFECTS_CSUPP instead of open coding it
nvme: fix the NVME_CMD_EFFECTS_CSE_MASK definition
docs, nvme: add a feature and quirk policy document
nvme-pci: update sqsize when adjusting the queue depth
nvme: fix setting the queue depth in nvme_alloc_io_tag_set
block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq
nvme: fix multipath crash caused by flush request when blktrace is enabled
nvme-pci: fix page size checks
nvme-pci: fix mempool alloc size
nvme-pci: fix doorbell buffer value endianness
To be able to use the Commands Supported and Effects Log for allowing
unprivileged passtrough, it needs to be corretly reported for I/O
commands as well. Return the I/O command effects from
nvme_command_effects, and also add a default list of effects for the
NVM command set. For other command sets, the Commands Supported and
Effects log is required to be present already.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
While the CAP.MQES field in NVMe is a 0s based filed with a natural one
off, we also need to account for the queue wrap condition and fix undo
the one off again in nvme_alloc_io_tag_set. This was never properly
done by the fabrics drivers, but they don't seem to care because there
is no actual physical queue that can wrap around, but it became a
problem when converting over the PCIe driver. Also add back the
BLK_MQ_MAX_DEPTH check that was lost in the same commit.
Fixes: 0da7feaa59 ("nvme-pci: use the tagset alloc/free helpers")
Reported-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Hugh Dickins <hughd@google.com>
Link: https://lore.kernel.org/r/20221225103234.226794-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Mostly small bug fixes and small updates. The only things of note is
a qla2xxx fix for crash on hotplug and timeout and the addition of a
user exposed abstraction layer for persistent reservation error return
handling (which necessitates the conversion of nvme.c as well as
SCSI).
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCY6SZISYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishQkdAP9Juri0
ihkyA9tVx1ZslVOp8V8mWK3P2VROA4ArvcMRVwD/Qxf2REP8Fx2GIgC0sNaRedg3
+ncveg3EpZ1n/NXXeDw=
=q+XO
-----END PGP SIGNATURE-----
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Mostly small bug fixes and small updates.
The only things of note is a qla2xxx fix for crash on hotplug and
timeout and the addition of a user exposed abstraction layer for
persistent reservation error return handling (which necessitates the
conversion of nvme.c as well as SCSI)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix crash when I/O abort times out
nvme: Convert NVMe errors to PR errors
scsi: sd: Convert SCSI errors to PR errors
scsi: core: Rename status_byte to sg_status_byte
block: Add error codes for common PR failures
scsi: sd: sd_zbc: Trace zone append emulation
scsi: libfc: Include the correct header
Here is the set of driver core and kernfs changes for 6.2-rc1.
The "big" change in here is the addition of a new macro,
container_of_const() that will preserve the "const-ness" of a pointer
passed into it.
The "problem" of the current container_of() macro is that if you pass in
a "const *", out of it can comes a non-const pointer unless you
specifically ask for it. For many usages, we want to preserve the
"const" attribute by using the same call. For a specific example, this
series changes the kobj_to_dev() macro to use it, allowing it to be used
no matter what the const value is. This prevents every subsystem from
having to declare 2 different individual macros (i.e.
kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
the const value at build time, which having 2 macros would not do
either.
The driver for all of this have been discussions with the Rust kernel
developers as to how to properly mark driver core, and kobject, objects
as being "non-mutable". The changes to the kobject and driver core in
this pull request are the result of that, as there are lots of paths
where kobjects and device pointers are not modified at all, so marking
them as "const" allows the compiler to enforce this.
So, a nice side affect of the Rust development effort has been already
to clean up the driver core code to be more obvious about object rules.
All of this has been bike-shedded in quite a lot of detail on lkml with
different names and implementations resulting in the tiny version we
have in here, much better than my original proposal. Lots of subsystem
maintainers have acked the changes as well.
Other than this change, included in here are smaller stuff like:
- kernfs fixes and updates to handle lock contention better
- vmlinux.lds.h fixes and updates
- sysfs and debugfs documentation updates
- device property updates
All of these have been in the linux-next tree for quite a while with no
problems, OTHER than some merge issues with other trees that should be
obvious when you hit them (block tree deletes a driver that this tree
modifies, iommufd tree modifies code that this tree also touches). If
there are merge problems with these trees, please let me know.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCY5wz3A8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+yks0ACeKYUlVgCsER8eYW+x18szFa2QTXgAn2h/VhZe
1Fp53boFaQkGBjl8mGF8
=v+FB
-----END PGP SIGNATURE-----
Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of driver core and kernfs changes for 6.2-rc1.
The "big" change in here is the addition of a new macro,
container_of_const() that will preserve the "const-ness" of a pointer
passed into it.
The "problem" of the current container_of() macro is that if you pass
in a "const *", out of it can comes a non-const pointer unless you
specifically ask for it. For many usages, we want to preserve the
"const" attribute by using the same call. For a specific example, this
series changes the kobj_to_dev() macro to use it, allowing it to be
used no matter what the const value is. This prevents every subsystem
from having to declare 2 different individual macros (i.e.
kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
the const value at build time, which having 2 macros would not do
either.
The driver for all of this have been discussions with the Rust kernel
developers as to how to properly mark driver core, and kobject,
objects as being "non-mutable". The changes to the kobject and driver
core in this pull request are the result of that, as there are lots of
paths where kobjects and device pointers are not modified at all, so
marking them as "const" allows the compiler to enforce this.
So, a nice side affect of the Rust development effort has been already
to clean up the driver core code to be more obvious about object
rules.
All of this has been bike-shedded in quite a lot of detail on lkml
with different names and implementations resulting in the tiny version
we have in here, much better than my original proposal. Lots of
subsystem maintainers have acked the changes as well.
Other than this change, included in here are smaller stuff like:
- kernfs fixes and updates to handle lock contention better
- vmlinux.lds.h fixes and updates
- sysfs and debugfs documentation updates
- device property updates
All of these have been in the linux-next tree for quite a while with
no problems"
* tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits)
device property: Fix documentation for fwnode_get_next_parent()
firmware_loader: fix up to_fw_sysfs() to preserve const
usb.h: take advantage of container_of_const()
device.h: move kobj_to_dev() to use container_of_const()
container_of: add container_of_const() that preserves const-ness of the pointer
driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion.
driver core: fix up missed scsi/cxlflash class.devnode() conversion.
driver core: fix up some missing class.devnode() conversions.
driver core: make struct class.devnode() take a const *
driver core: make struct class.dev_uevent() take a const *
cacheinfo: Remove of_node_put() for fw_token
device property: Add a blank line in Kconfig of tests
device property: Rename goto label to be more precise
device property: Move PROPERTY_ENTRY_BOOL() a bit down
device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*()
kernfs: fix all kernel-doc warnings and multiple typos
driver core: pass a const * into of_device_uevent()
kobject: kset_uevent_ops: make name() callback take a const *
kobject: kset_uevent_ops: make filter() callback take a const *
kobject: make kobject_namespace take a const *
...
-----BEGIN PGP SIGNATURE-----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=k/vv
-----END PGP SIGNATURE-----
Merge tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull requests via Christoph:
- Support some passthrough commands without CAP_SYS_ADMIN (Kanchan
Joshi)
- Refactor PCIe probing and reset (Christoph Hellwig)
- Various fabrics authentication fixes and improvements (Sagi
Grimberg)
- Avoid fallback to sequential scan due to transient issues (Uday
Shankar)
- Implement support for the DEAC bit in Write Zeroes (Christoph
Hellwig)
- Allow overriding the IEEE OUI and firmware revision in configfs
for nvmet (Aleksandr Miloserdov)
- Force reconnect when number of queue changes in nvmet (Daniel
Wagner)
- Minor fixes and improvements (Uros Bizjak, Joel Granados, Sagi
Grimberg, Christoph Hellwig, Christophe JAILLET)
- Fix and cleanup nvme-fc req allocation (Chaitanya Kulkarni)
- Use the common tagset helpers in nvme-pci driver (Christoph
Hellwig)
- Cleanup the nvme-pci removal path (Christoph Hellwig)
- Use kstrtobool() instead of strtobool (Christophe JAILLET)
- Allow unprivileged passthrough of Identify Controller (Joel
Granados)
- Support io stats on the mpath device (Sagi Grimberg)
- Minor nvmet cleanup (Sagi Grimberg)
- MD pull requests via Song:
- Code cleanups (Christoph)
- Various fixes
- Floppy pull request from Denis:
- Fix a memory leak in the init error path (Yuan)
- Series fixing some batch wakeup issues with sbitmap (Gabriel)
- Removal of the pktcdvd driver that was deprecated more than 5 years
ago, and subsequent removal of the devnode callback in struct
block_device_operations as no users are now left (Greg)
- Fix for partition read on an exclusively opened bdev (Jan)
- Series of elevator API cleanups (Jinlong, Christoph)
- Series of fixes and cleanups for blk-iocost (Kemeng)
- Series of fixes and cleanups for blk-throttle (Kemeng)
- Series adding concurrent support for sync queues in BFQ (Yu)
- Series bringing drbd a bit closer to the out-of-tree maintained
version (Christian, Joel, Lars, Philipp)
- Misc drbd fixes (Wang)
- blk-wbt fixes and tweaks for enable/disable (Yu)
- Fixes for mq-deadline for zoned devices (Damien)
- Add support for read-only and offline zones for null_blk
(Shin'ichiro)
- Series fixing the delayed holder tracking, as used by DM (Yu,
Christoph)
- Series enabling bio alloc caching for IRQ based IO (Pavel)
- Series enabling userspace peer-to-peer DMA (Logan)
- BFQ waker fixes (Khazhismel)
- Series fixing elevator refcount issues (Christoph, Jinlong)
- Series cleaning up references around queue destruction (Christoph)
- Series doing quiesce by tagset, enabling cleanups in drivers
(Christoph, Chao)
- Series untangling the queue kobject and queue references (Christoph)
- Misc fixes and cleanups (Bart, David, Dawei, Jinlong, Kemeng, Ye,
Yang, Waiman, Shin'ichiro, Randy, Pankaj, Christoph)
* tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux: (247 commits)
blktrace: Fix output non-blktrace event when blk_classic option enabled
block: sed-opal: Don't include <linux/kernel.h>
sed-opal: allow using IOC_OPAL_SAVE for locking too
blk-cgroup: Fix typo in comment
block: remove bio_set_op_attrs
nvmet: don't open-code NVME_NS_ATTR_RO enumeration
nvme-pci: use the tagset alloc/free helpers
nvme: add the Apple shared tag workaround to nvme_alloc_io_tag_set
nvme: only set reserved_tags in nvme_alloc_io_tag_set for fabrics controllers
nvme: consolidate setting the tagset flags
nvme: pass nr_maps explicitly to nvme_alloc_io_tag_set
block: bio_copy_data_iter
nvme-pci: split out a nvme_pci_ctrl_is_dead helper
nvme-pci: return early on ctrl state mismatch in nvme_reset_work
nvme-pci: rename nvme_disable_io_queues
nvme-pci: cleanup nvme_suspend_queue
nvme-pci: remove nvme_pci_disable
nvme-pci: remove nvme_disable_admin_queue
nvme: merge nvme_shutdown_ctrl into nvme_disable_ctrl
nvme: use nvme_wait_ready in nvme_shutdown_ctrl
...
Add the apple shared tag workaround to nvme_alloc_io_tag_set to prepare
for using that helper in the PCIe driver.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
The reserved_tags are only needed for fabrics controllers. Right now only
fabrics drivers call this helper, so this is harmless, but we'll use it
in the PCIe driver soon.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
All nvme transports should be using the same flags for their tagsets,
with the exception for the blocking flag that should only be set for
transports that can block in ->queue_rq.
Add a NVME_F_BLOCKING flag to nvme_ctrl_ops to control the blocking
behavior and lift setting the flags into nvme_alloc_{admin,io}_tag_set.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Don't look at ctrl->ops as only RDMA and TCP actually support multiple
maps.
Fixes: 6dfba1c09c ("nvme-fc: use the tagset alloc/free helpers")
Fixes: ceee1953f9 ("nvme-loop: use the tagset alloc/free helpers")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Many of the callers decide which one to use based on a bool argument and
there is at least some code to be shared, so merge these two. Also
move a comment specific to a single callsite to that callsite.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hector Martin <marcan@marcan.st>
Refactor the code to wait for CSTS state changes so that it can be reused
by nvme_shutdown_ctrl. This reduces the delay between each iteration
that checks CSTS from 100ms in the shutdown code to the 1 to 2ms range
done during enable, matching the changes from commit 3e98c2443f that
were only applied to the enable/disable path.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
Our mpath stack device is just a shim that selects a bottom namespace
and submits the bio to it without any fancy splitting. This also means
that we don't clone the bio or have any context to the bio beyond
submission. However it really sucks that we don't see the mpath device
io stats.
Given that the mpath device can't do that without adding some context
to it, we let the bottom device do it on its behalf (somewhat similar
to the approach taken in nvme_trace_bio_complete).
When the IO starts, we account the request for multipath IO stats using
REQ_NVME_MPATH_IO_STATS nvme_request flag to avoid queue io stats disable
in the middle of the request.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
The NVMe drivers support a mode where no tagset is allocated for the I/O
queues and only the admin queue is usable. In that case ctrl->tagset is
NULL and we must not call the block per-tagset quiesce helpers that
dereference it.
Fixes: 98d81f0df7 ("nvme: use blk_mq_[un]quiesce_tagset")
Reported-by: Gerd Bayer <gbayer@linux.ibm.com>
Reported-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chao Leng <lengchao@huawei.com>
A device might have a core quirk for NVME_QUIRK_IGNORE_DEV_SUBNQN
(such as Samsung X5) but it would still give a:
"missing or invalid SUBNQN field"
warning as core quirks are filled after calling nvme_init_subnqn. Fill
ctrl->quirks from struct core_quirks before calling nvme_init_subsystem
to fix this.
Tested on a Samsung X5.
Fixes: ab9e00cc72 ("nvme: track subsystems")
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This converts the NVMe errors we commonly see during PR handling to PR_STS
errors or -Exyz errors. pr_ops callers can then handle SCSI and NVMe errors
without knowing the device types.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20221122032603.32766-5-michael.christie@oracle.com
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The dev_uevent() in struct class should not be modifying the device that
is passed into it, so mark it as a const * and propagate the function
signature changes out into all relevant subsystems that use this
callback.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Russ Weight <russell.h.weight@intel.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Raed Salem <raeds@nvidia.com>
Cc: Chen Zhongjin <chenzhongjin@huawei.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Avihai Horon <avihaih@nvidia.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jakob Koschel <jakobkoschel@gmail.com>
Cc: Antoine Tenart <atenart@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Wang Yufen <wangyufen@huawei.com>
Cc: linux-block@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: linux-nvme@lists.infradead.org
Cc: linux-pm@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20221123122523.1332370-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Naming the nvme helpers that wrap the block quiesce functionality
_start/_stop is rather confusing. Switch to using the quiesce naming
used by the block layer instead.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
In nvme_init_non_mdts_limits function we were returning 0 when kzalloc
failed; it now returns -ENOMEM.
Fixes: 5befc7c26e ("nvme: implement non-mdts command limits")
Signed-off-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Currently, if nvme_scan_ns_list fails, nvme_scan_work will fall back to
a sequential scan. nvme_scan_ns_list can fail for a variety of reasons,
e.g. a transient transport issue, and the resulting sequential scan can
be extremely expensive on controllers reporting an NN value close to the
maximum allowed (> 4 billion). Avoid sequential scans wherever possible
by only falling back to them in two cases:
- When the NVMe version supported (VS) value reported by the device is
older than NVME_VS(1, 1, 0), before which support of Identify NS List
not required.
- When the Identify NS List command fails with the DNR bit set in the
status. This is to accommodate (non-compliant) devices which report a
VS value which implies support for Identify NS List, but nevertheless
do not support the command. Such devices will most likely fail the
command with the DNR bit set.
The third case is when the device claims support for Identify NS List
but the command fails with DNR not set. In such cases, fallback to
sequential scan is potentially expensive and likely unnecessary, as a
retry of the list scan should succeed. So this change skips the fallback
in this third case.
Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We know exactly how many dhchap contexts we will need, there is no need
to hold a list that we need to protect with a mutex. Convert to
a dynamically allocated array. And dhchap_context access state is
maintained by the chap itself.
Make dhchap_auth_mutex protect only the ctrl host_key and ctrl_key
in a fine-grained lock such that there is no long lasting acquisition
of the lock and no need to take/release this lock when flushing
authentication works.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Now that the chap context is reset upon completion, this is no longer
needed. Also remove nvme_auth_reset as no callers are left.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We want to guarantee that we have chap buffers when a controller
reconnects under memory pressure. Add a mempool specifically
for that.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Replace ctrl ctrl_key/host_key only after nvme_auth_generate_key is successful.
Also, this fixes a bug where the keys are leaked.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
nvme_auth_generate_key can fail, don't ignore it upon initialization.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Allow the transport driver to override the attribute groups for the
control device, so that the PCIe driver doesn't manually have to add a
group after device creation and keep track of it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by Gerd Bayer <gbayer@linxu.ibm.com>
Nothing about the TCG Opal support is PCIe transport specific, so move it
to the core code. For this nvme_init_ctrl_finish grows a new
was_suspended argument that allows the transport driver to tell the OPAL
code if the controller came out of a suspend cycle.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Tested-by Gerd Bayer <gbayer@linxu.ibm.com>
nvme_passthrough_end can race with a reset, which can lead to
racing stores to the cels xarray as well as further shengians
with upcoming more complicated initialization.
So drop the call and just log that the controller capabilities
might have changed and a reset could be required to use the new
controller capabilities.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by Gerd Bayer <gbayer@linxu.ibm.com>
While the specification allows devices to either deallocate data
or to actually write zeroes on any Write Zeroes command, many SSDs
only do the sensible thing and deallocate data when the DEAC bit
is specific. Set it when it is supported and the caller doesn't
explicitly opt out of deallocation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver is spamming the kernel logs for entirely harmless errors from
user space submitting unsupported commands. Just silence the errors.
The application has direct access to command status, so there's no need
to log these.
And since every passthrough command now uses the quiet flag, move the
setting to the common initializer.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Alan Adamson <alan.adamson@oracle.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Tested-by: Alan Adamson <alan.adamson@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
All controller namespaces share the same tagset, so we can use this
interface which does the optimal operation for parallel quiesce based on
the tagset type(e.g. blocking tagsets and non-blocking tagsets).
nvme connect_q should not be quiesced when quiesce tagset, so set the
QUEUE_FLAG_SKIP_TAGSET_QUIESCE to skip it when init connect_q.
Currently we use NVME_NS_STOPPED to ensure pairing quiescing and
unquiescing. If use blk_mq_[un]quiesce_tagset, NVME_NS_STOPPED will be
invalided, so introduce NVME_CTRL_STOPPED to replace NVME_NS_STOPPED.
In addition, we never really quiesce a single namespace. It is a better
choice to move the flag from ns to ctrl.
Signed-off-by: Chao Leng <lengchao@huawei.com>
[hch: rebased on top of prep patches]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Nothing in blk_mq_wait_quiesce_done needs the request_queue now, so just
pass the tagset, and move the non-mq check into the only caller that
needs it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
nvme_kill_queues does two things:
1) mark the gendisk of all namespaces dead
2) unquiesce all I/O queues
These used to be be intertwined due to block layer issues, but aren't
any more. So move the unquiscing of the I/O queues into the callers,
and rename the rest of the function to the now more descriptive
nvme_mark_namespaces_dead.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
None of the callers of nvme_kill_queues needs it to unquiesce the
admin queues, as all of them already do it themselves:
1) nvme_reset_work explicit call nvme_start_admin_queue toward the
beginning of the function. The extra call to nvme_start_admin_queue
in nvme_reset_work this won't do anything as
NVME_CTRL_ADMIN_Q_STOPPED will already be cleared.
2) nvme_remove calls nvme_dev_disable with shutdown flag set to true at
the very beginning of the function if the PCIe device was not present,
which is the precondition for the call to nvme_kill_queues.
nvme_dev_disable already calls nvme_start_admin_queue toward the
end of the function when the shutdown flag is set to true, so the
admin queue is already enabled at this point.
3) nvme_remove_dead_ctrl schedules a workqueue to unbind the driver,
which will end up in nvme_remove, which calls nvme_dev_disable with
the shutdown flag. This case will call nvme_start_admin_queue a bit
later than before.
4) apple_nvme_remove uses the same sequence as nvme_remove_dead_ctrl
above.
5) nvme_remove_namespaces only calls nvme_kill_queues when the
controller is in the DEAD state. That can only happen in the PCIe
driver, and only from nvme_remove. See item 2) above for the
conditions there.
So it is safe to just remove the call to nvme_start_admin_queue in
nvme_kill_queues without replacement.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
At the point where namespaces are marked dead, the controller is in a
non-live state and we won't get pass the identify commands.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The NVME_NS_DEAD check only made sense when we revalidated namespaces
in nvme_passthrough_end for commands that affected the namespace inventory.
These days NVME_NS_DEAD is only set during reset or when tearing down
namespaces, and we always remove all namespaces right after that.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The call to nvme_remove_invalid_namespaces made sense when
nvme_passthru_end revalidated all namespaces and had to remove those that
didn't exist any more. Since we don't revalidate from nvme_passthru_end
now, this call is entirely spurious.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
nvme and xen-blkfront are already doing this to stop buffered writes from
creating dirty pages that can't be written out later. Move it to the
common code.
This also removes the comment about the ordering from nvme, as bd_mutex
not only is gone entirely, but also hasn't been used for locking updates
to the disk size long before that, and thus the ordering requirement
documented there doesn't apply any more.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20221101150050.3510-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The fact that blk_mq_destroy_queue also drops a queue reference leads
to various places having to grab an extra reference. Move the call to
blk_put_queue into the callers to allow removing the extra references.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20221018135720.670094-2-hch@lst.de
[axboe: fix fabrics_q vs admin_q conflict in nvme core.c]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
An NVMe controller works perfectly fine even when the hwmon
initialization fails. Stop returning errors that do not come from a
controller reset from nvme_hwmon_init to handle this case consistently.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
There is typo here so it releases the wrong variable. "ctrl->admin_q"
was intended instead of "ctrl->fabrics_q".
Fixes: fe60e8c534 ("nvme: add common helpers to allocate and free tagsets")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
-----BEGIN PGP SIGNATURE-----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=nwLk
-----END PGP SIGNATURE-----
Merge tag 'for-6.1/passthrough-2022-10-04' of git://git.kernel.dk/linux
Pull passthrough updates from Jens Axboe:
"With these changes, passthrough NVMe support over io_uring now
performs at the same level as block device O_DIRECT, and in many cases
6-8% better.
This contains:
- Add support for fixed buffers for passthrough (Anuj, Kanchan)
- Enable batched allocations and freeing on passthrough, similarly to
what we support on the normal storage path (me)
- Fix from Geert fixing an issue with !CONFIG_IO_URING"
* tag 'for-6.1/passthrough-2022-10-04' of git://git.kernel.dk/linux:
io_uring: Add missing inline to io_uring_cmd_import_fixed() dummy
nvme: wire up fixed buffer support for nvme passthrough
nvme: pass ubuffer as an integer
block: extend functionality to map bvec iterator
block: factor out blk_rq_map_bio_alloc helper
block: rename bio_map_put to blk_mq_map_bio_put
nvme: refactor nvme_alloc_request
nvme: refactor nvme_add_user_metadata
nvme: Use blk_rq_map_user_io helper
scsi: Use blk_rq_map_user_io helper
block: add blk_rq_map_user_io
io_uring: introduce fixed buffer support for io_uring_cmd
io_uring: add io_uring_cmd_import_fixed
nvme: enable batched completions of passthrough IO
nvme: split out metadata vs non metadata end_io uring_cmd completions
block: allow end_io based requests in the completion batch handling
block: change request end_io handler to pass back a return value
block: enable batched allocation for blk_mq_alloc_request()
block: kill deprecated BUG_ON() in the flush handling
-----BEGIN PGP SIGNATURE-----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=R05e
-----END PGP SIGNATURE-----
Merge tag 'for-6.1/block-2022-10-03' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull requests via Christoph:
- handle number of queue changes in the TCP and RDMA drivers
(Daniel Wagner)
- allow changing the number of queues in nvmet (Daniel Wagner)
- also consider host_iface when checking ip options (Daniel
Wagner)
- don't map pages which can't come from HIGHMEM (Fabio M. De
Francesco)
- avoid unnecessary flush bios in nvmet (Guixin Liu)
- shrink and better pack the nvme_iod structure (Keith Busch)
- add comment for unaligned "fake" nqn (Linjun Bao)
- print actual source IP address through sysfs "address" attr
(Martin Belanger)
- various cleanups (Jackie Liu, Wolfram Sang, Genjian Zhang)
- handle effects after freeing the request (Keith Busch)
- copy firmware_rev on each init (Keith Busch)
- restrict management ioctls to admin (Keith Busch)
- ensure subsystem reset is single threaded (Keith Busch)
- report the actual number of tagset maps in nvme-pci (Keith
Busch)
- small fabrics authentication fixups (Christoph Hellwig)
- add common code for tagset allocation and freeing (Christoph
Hellwig)
- stop using the request_queue in nvmet (Christoph Hellwig)
- set min_align_mask before calculating max_hw_sectors (Rishabh
Bhatnagar)
- send a rediscover uevent when a persistent discovery controller
reconnects (Sagi Grimberg)
- misc nvmet-tcp fixes (Varun Prakash, zhenwei pi)
- MD pull request via Song:
- Various raid5 fix and clean up, by Logan Gunthorpe and David
Sloan.
- Raid10 performance optimization, by Yu Kuai.
- sbitmap wakeup hang fixes (Hugh, Keith, Jan, Yu)
- IO scheduler switching quisce fix (Keith)
- s390/dasd block driver updates (Stefan)
- support for recovery for the ublk driver (ZiyangZhang)
- rnbd drivers fixes and updates (Guoqing, Santosh, ye, Christoph)
- blk-mq and null_blk map fixes (Bart)
- various bcache fixes (Coly, Jilin, Jules)
- nbd signal hang fix (Shigeru)
- block writeback throttling fix (Yu)
- optimize the passthrough mapping handling (me)
- prepare block cgroups to being gendisk based (Christoph)
- get rid of an old PSI hack in the block layer, moving it to the
callers instead where it belongs (Christoph)
- blk-throttle fixes and cleanups (Yu)
- misc fixes and cleanups (Liu Shixin, Liu Song, Miaohe, Pankaj,
Ping-Xiang, Wolfram, Saurabh, Li Jinlin, Li Lei, Lin, Li zeming,
Miaohe, Bart, Coly, Gaosheng
* tag 'for-6.1/block-2022-10-03' of git://git.kernel.dk/linux: (162 commits)
sbitmap: fix lockup while swapping
block: add rationale for not using blk_mq_plug() when applicable
block: adapt blk_mq_plug() to not plug for writes that require a zone lock
s390/dasd: use blk_mq_alloc_disk
blk-cgroup: don't update the blkg lookup hint in blkg_conf_prep
nvmet: don't look at the request_queue in nvmet_bdev_set_limits
nvmet: don't look at the request_queue in nvmet_bdev_zone_mgmt_emulate_all
blk-mq: use quiesced elevator switch when reinitializing queues
block: replace blk_queue_nowait with bdev_nowait
nvme: remove nvme_ctrl_init_connect_q
nvme-loop: use the tagset alloc/free helpers
nvme-loop: store the generic nvme_ctrl in set->driver_data
nvme-loop: initialize sqsize later
nvme-fc: use the tagset alloc/free helpers
nvme-fc: store the generic nvme_ctrl in set->driver_data
nvme-fc: keep ctrl->sqsize in sync with opts->queue_size
nvme-rdma: use the tagset alloc/free helpers
nvme-rdma: store the generic nvme_ctrl in set->driver_data
nvme-tcp: use the tagset alloc/free helpers
nvme-tcp: store the generic nvme_ctrl in set->driver_data
...
-----BEGIN PGP SIGNATURE-----
iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmM67S0QHGF4Ym9lQGtl
cm5lbC5kawAKCRD301j7KXHgppnPEACkBzilBLKwT9MWdUAITwyrMXsAa1R9gsR9
Tb3Xs+mNO2meuycLAUh4LIbb28NNr7/S5rwWet5NRZ71hgv4Q/WA/0EemAGGXYqd
+3MEBAWU3FBFkC/cJXCnT8F5yCXYRkT5n/hzCSNEpNKjQ5JnAhHDlWAjgzZRuD/A
A+YJjoBVJJuI1wY4I5XCpeQXEmg/Wc1MgXfyHgWVtGKnYrrxibiCnBZnqbAMZNvD
hGn1Vl02ooamGTFm/nW/OAt71DtqsjWUCVOHKmlZ+zBUjbUj6FMXmPVV7vCV9o2w
PT4Dx3CTc2iXwa8KfEFNPvXBzy0Qfu8edweP/MvZHWHVZREpEAh4cG6GhwW8whD+
5mPisqmRjZKe0BBS4k/wKN1RXEypSQoTU4EdljfbQPU/usn35lmjMmEXXgs3IhqM
fcTdO5ZUOp+CGyzI0Bc7UtS8vilJbX9ynN8G80MUUAZzuQg39MH7lNQYSJSSvJfU
OlvzmL3lhRLYM1s/KKiZzdDBoMvC7R4oHmzCveOjQTMIHf6WNyqKFlrWScq2wzpN
oRxqt0xiVQ3PFMmFj6N08f145qtbASuF3sKv7dbU3QXTsCAos3wdTdX+PejYApEZ
W3dr0TDjNBicLNVPiSj132p0ZRtdZvLGuGVkBD4GPQeH2NwswxMHQAfz8e2lqmA4
9bWG6BM7Yw==
=m9kX
-----END PGP SIGNATURE-----
Merge tag 'for-6.1/io_uring-2022-10-03' of git://git.kernel.dk/linux
Pull io_uring updates from Jens Axboe:
- Add supported for more directly managed task_work running.
This is beneficial for real world applications that end up issuing
lots of system calls as part of handling work. Normal task_work will
always execute as we transition in and out of the kernel, even for
"unrelated" system calls. It's more efficient to defer the handling
of io_uring's deferred work until the application wants it to be run,
generally in batches.
As part of ongoing work to write an io_uring network backend for
Thrift, this has been shown to greatly improve performance. (Dylan)
- Add IOPOLL support for passthrough (Kanchan)
- Improvements and fixes to the send zero-copy support (Pavel)
- Partial IO handling fixes (Pavel)
- CQE ordering fixes around CQ ring overflow (Pavel)
- Support sendto() for non-zc as well (Pavel)
- Support sendmsg for zerocopy (Pavel)
- Networking iov_iter fix (Stefan)
- Misc fixes and cleanups (Pavel, me)
* tag 'for-6.1/io_uring-2022-10-03' of git://git.kernel.dk/linux: (56 commits)
io_uring/net: fix notif cqe reordering
io_uring/net: don't update msg_name if not provided
io_uring: don't gate task_work run on TIF_NOTIFY_SIGNAL
io_uring/rw: defer fsnotify calls to task context
io_uring/net: fix fast_iov assignment in io_setup_async_msg()
io_uring/net: fix non-zc send with address
io_uring/net: don't skip notifs for failed requests
io_uring/rw: don't lose short results on io_setup_async_rw()
io_uring/rw: fix unexpected link breakage
io_uring/net: fix cleanup double free free_iov init
io_uring: fix CQE reordering
io_uring/net: fix UAF in io_sendrecv_fail()
selftest/net: adjust io_uring sendzc notif handling
io_uring: ensure local task_work marks task as running
io_uring/net: zerocopy sendmsg
io_uring/net: combine fail handlers
io_uring/net: rename io_sendzc()
io_uring/net: support non-zerocopy sendto
io_uring/net: refactor io_setup_async_addr
io_uring/net: don't lose partial send_zc on fail
...
-----BEGIN PGP SIGNATURE-----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=SZZ1
-----END PGP SIGNATURE-----
Merge tag 'block-6.0-2022-09-29' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"A single NVMe pull request via Christoph with a few fixes that should
go into the 6.0 release:
- Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices
(Michael Kelley)
- Disable Write Zeroes on Phison E3C/E4C (Tina Hsu)"
* tag 'block-6.0-2022-09-29' of git://git.kernel.dk/linux:
nvme-pci: disable Write Zeroes on Phison E3C/E4C
nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices
Everything is just converted to returning RQ_END_IO_NONE, and there
should be no functional changes with this patch.
In preparation for allowing the end_io handler to pass ownership back
to the block layer, rather than retain ownership of the request.
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
* for-6.1/block: (162 commits)
sbitmap: fix lockup while swapping
block: add rationale for not using blk_mq_plug() when applicable
block: adapt blk_mq_plug() to not plug for writes that require a zone lock
s390/dasd: use blk_mq_alloc_disk
blk-cgroup: don't update the blkg lookup hint in blkg_conf_prep
nvmet: don't look at the request_queue in nvmet_bdev_set_limits
nvmet: don't look at the request_queue in nvmet_bdev_zone_mgmt_emulate_all
blk-mq: use quiesced elevator switch when reinitializing queues
block: replace blk_queue_nowait with bdev_nowait
nvme: remove nvme_ctrl_init_connect_q
nvme-loop: use the tagset alloc/free helpers
nvme-loop: store the generic nvme_ctrl in set->driver_data
nvme-loop: initialize sqsize later
nvme-fc: use the tagset alloc/free helpers
nvme-fc: store the generic nvme_ctrl in set->driver_data
nvme-fc: keep ctrl->sqsize in sync with opts->queue_size
nvme-rdma: use the tagset alloc/free helpers
nvme-rdma: store the generic nvme_ctrl in set->driver_data
nvme-tcp: use the tagset alloc/free helpers
nvme-tcp: store the generic nvme_ctrl in set->driver_data
...
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add common helpers to allocate and tear down the admin and I/O tag sets,
including the special queues allocated with them.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
When a discovery controller is disconnected, no AENs will arrive to
notify the host about discovery log change events.
In order to solve this, send a uevent notification when a
persistent discovery controller reconnects. We add a new ctrl
flag NVME_CTRL_STARTED_ONCE that will be set on the first
start, and consecutive calls will find it set, and send the
event to userspace if the controller is a discovery controller.
Upon the event reception, userspace will re-read the discovery
log page and will act upon changes as it sees fit.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The IOC_PR_CLEAR and IOC_PR_RELEASE ioctls are
non-functional on NVMe devices because the nvme_pr_clear()
and nvme_pr_release() functions set the IEKEY field incorrectly.
The IEKEY field should be set only when the key is zero (i.e,
not specified). The current code does it backwards.
Furthermore, the NVMe spec describes the persistent
reservation "clear" function as an option on the reservation
release command. The current implementation of nvme_pr_clear()
erroneously uses the reservation register command.
Fix these errors. Note that NVMe version 1.3 and later specify
that setting the IEKEY field will return an error of Invalid
Field in Command. The fix will set IEKEY when the key is zero,
which is appropriate as these ioctls consider a zero key to
be "unspecified", and the intention of the spec change is
to require a valid key.
Tested on a version 1.4 PCI NVMe device in an Azure VM.
Fixes: 1673f1f08c ("nvme: move block_device_operations and ns/ctrl freeing to common code")
Fixes: 1d277a637a ("NVMe: Add persistent reservation ops")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The firmware revision can change on after a reset so copy the most
recent info each time instead of just the first time, otherwise the
sysfs firmware_rev entry may contain stale data.
Reported-by: Jeff Lien <jeff.lien@wdc.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
If a reset occurs after the scan work attempts to issue a command, the
reset may quisce the admin queue, which blocks the scan work's command
from dispatching. The scan work will not be able to complete while the
queue is quiesced.
Meanwhile, the reset work will cancel all outstanding admin tags and
wait until all requests have transitioned to idle, which includes the
passthrough request. But the passthrough request won't be set to idle
until after the scan_work flushes, so we're deadlocked.
Fix this by handling the end effects after the request has been freed.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216354
Reported-by: Jonathan Derrick <Jonathan.Derrick@solidigm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Store a cookie during submission, and use that to implement
completion-polling inside the ->uring_cmd_iopoll handler.
This handler makes use of existing bio poll facility.
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://lore.kernel.org/r/20220823161443.49436-5-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Current "fake" nqn field is "nqn.2014.08.org.nvmexpress:", it is
not aligned with the canonical version for history reasons.
Signed-off-by: Linjun Bao <meljbao@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
-----BEGIN PGP SIGNATURE-----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=3RZd
-----END PGP SIGNATURE-----
Merge tag 'block-6.0-2022-09-09' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull via Christoph:
- fix a use after free in nvmet (Bart Van Assche)
- fix a use after free when detecting digest errors
(Sagi Grimberg)
- fix regression that causes sporadic TCP requests to time out
(Sagi Grimberg)
- fix two off by ones errors in the nvmet ZNS support
(Dennis Maisenbacher)
- requeue aen after firmware activation (Keith Busch)
- Fix missing request flags in debugfs code (me)
- Partition scan fix (Ming)
* tag 'block-6.0-2022-09-09' of git://git.kernel.dk/linux-block:
block: add missing request flags to debugfs code
nvme: requeue aen after firmware activation
nvmet: fix mar and mor off-by-one errors
nvme-tcp: fix regression that causes sporadic requests to time out
nvme-tcp: fix UAF when detecting digest errors
nvmet: fix a use-after-free
block: don't add partitions if GD_SUPPRESS_PART_SCAN is set
The driver prevents async event work while handling a processing paused
event, but someone needs to restart it after the controller returns to a
live state.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216400
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
- convert arm32 to the common dma-direct code (Arnd Bergmann, Robin Murphy,
Christoph Hellwig)
- restructure the PCIe peer to peer mapping support (Logan Gunthorpe)
- allow the IOMMU code to communicate an optional DMA mapping length
and use that in scsi and libata (John Garry)
- split the global swiotlb lock (Tianyu Lan)
- various fixes and cleanup (Chao Gao, Dan Carpenter, Dongli Zhang,
Lukas Bulwahn, Robin Murphy)
-----BEGIN PGP SIGNATURE-----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=Bv19
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-5.20-2022-08-06' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- convert arm32 to the common dma-direct code (Arnd Bergmann, Robin
Murphy, Christoph Hellwig)
- restructure the PCIe peer to peer mapping support (Logan Gunthorpe)
- allow the IOMMU code to communicate an optional DMA mapping length
and use that in scsi and libata (John Garry)
- split the global swiotlb lock (Tianyu Lan)
- various fixes and cleanup (Chao Gao, Dan Carpenter, Dongli Zhang,
Lukas Bulwahn, Robin Murphy)
* tag 'dma-mapping-5.20-2022-08-06' of git://git.infradead.org/users/hch/dma-mapping: (45 commits)
swiotlb: fix passing local variable to debugfs_create_ulong()
dma-mapping: reformat comment to suppress htmldoc warning
PCI/P2PDMA: Remove pci_p2pdma_[un]map_sg()
RDMA/rw: drop pci_p2pdma_[un]map_sg()
RDMA/core: introduce ib_dma_pci_p2p_dma_supported()
nvme-pci: convert to using dma_map_sgtable()
nvme-pci: check DMA ops when indicating support for PCI P2PDMA
iommu/dma: support PCI P2PDMA pages in dma-iommu map_sg
iommu: Explicitly skip bus address marked segments in __iommu_map_sg()
dma-mapping: add flags to dma_map_ops to indicate PCI P2PDMA support
dma-direct: support PCI P2PDMA pages in dma-direct map_sg
dma-mapping: allow EREMOTEIO return code for P2PDMA transfers
PCI/P2PDMA: Introduce helpers for dma_map_sg implementations
PCI/P2PDMA: Attempt to set map_type if it has not been set
lib/scatterlist: add flag for indicating P2PDMA segments in an SGL
swiotlb: clean up some coding style and minor issues
dma-mapping: update comment after dmabounce removal
scsi: sd: Add a comment about limiting max_sectors to shost optimal limit
ata: libata-scsi: cap ata_device->max_sectors according to shost->max_sectors
scsi: scsi_transport_sas: cap shost opt_sectors according to DMA optimal limit
...
Extend nvme_alloc_ns() and nvme_validate_ns() for unknown command-set as
well. Both are made to use a new helper (nvme_update_ns_info_cs_indep)
which is similar to nvme_update_ns_info but performs fewer operations
to get the generic interface up.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
[hch: rebased on other refactoring patches]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add a little helper to check if a namespace should be marked read-only
that uses a new is_readonly flag in the nvme_ns_info structure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Change nvme_ns_scan to gather all information needed for generic
namespace setup into a nvme_ns_info structure. This structure is filled
from the Command Set Idependent Identify Namespace data structure if
it is available or else the legacy Identify namespace structure.
With that everything related to the NVM command set (and the ZNS command
set derived from it) can be encapsulated in the nvme_update_ns_info_block
function while keeping the rest of the namespace probing generic.
The downside is that we now always issue two Identify Namespace calls for
each probed namespace instead of usually just a single one previously.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Check for multiple command set support early on an error out if is
not supported when a !NVM command set namespace is found. This
prepares for adding command set independent passthrough support.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This shorter name much better fits what this function does in
the scanning process.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
nvme_revalidate_zones can also return -ENODEV if e.g. zone sizes aren't
constant or not a power of two. In that case we should jump to marking
the gendisk hidden and only support pass through.
Fixes: 602e57c979 ("nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info")
Reported-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 89b3d6e605 ("nvme: simplify the compat ioctl handling") removed
the initialization of compat_ioctl from the nvme block_device_operations
structures.
Presumably the expectation was that 32-bit ioctls would be directed
through the regular handler but this is not the case: failing to assign
.compat_ioctl actually means that the compat case is disabled entirely,
and any attempt to submit nvme ioctls from 32-bit userspace fails
outright with -ENOTTY.
For example:
% smartctl -x /dev/nvme0n1
[...]
Read NVMe Identify Controller failed: NVME_IOCTL_ADMIN_CMD: Inappropriate ioctl for device
The blkdev_compat_ptr_ioctl helper can be used to direct compat calls
through the main ioctl handler and makes things work again.
Fixes: 89b3d6e605 ("nvme: simplify the compat ioctl handling")
Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Reviewed-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pass anagrpid as second argument. This is prep patch that allows reusing
this function for supporting unknown command sets.
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Implement NVMe-oF In-Band authentication according to NVMe TPAR 8006.
This patch adds two new fabric options 'dhchap_secret' to specify the
pre-shared key (in ASCII respresentation according to NVMe 2.0 section
8.13.5.8 'Secret representation') and 'dhchap_ctrl_secret' to specify
the pre-shared controller key for bi-directional authentication of both
the host and the controller.
Re-authentication can be triggered by writing the PSK into the new
controller sysfs attribute 'dhchap_secret' or 'dhchap_ctrl_secret'.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
[axboe: fold in clang build fix]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Only caller of the __nvme_submit_sync_cmd() with qid value not equal to
NVME_QID_ANY is nvmf_connect_io_queues(), where qid value is alway set
to > 0.
[1] __nvme_submit_sync_cmd() callers with qid parameter from :-
Caller | qid parameter
------------------------------------------------------
* nvme_fc_connect_io_queues() |
nvmf_connect_io_queue() | qid > 0
* nvme_rdma_start_io_queues() |
nvme_rdma_start_queue() |
nvmf_connect_io_queues() | qid > 0
* nvme_tcp_start_io_queues() |
nvme_tcp_start_queue() |
nvmf_connect_io_queues() | qid > 0
* nvme_loop_connect_io_queues() |
nvmf_connect_io_queues() | qid > 0
When qid value of the function parameter __nvme_submit_sync_cmd() is > 0
from above callers, we use blk_mq_alloc_request_hctx(), where we pass
last parameter as 0 if qid functional parameter value is set to 0 with
conditional operators, see 1002 :-
991 int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
992 union nvme_result *result, void *buffer, unsigned bufflen,
993 int qid, int at_head, blk_mq_req_flags_t flags)
994 {
995 struct request *req;
996 int ret;
997
998 if (qid == NVME_QID_ANY)
999 req = blk_mq_alloc_request(q, nvme_req_op(cmd), flags);
1000 else
1001 req = blk_mq_alloc_request_hctx(q, nvme_req_op(cmd), flags,
1002 qid ? qid - 1 : 0);
1003
But qid function parameter value of the __nvme_submit_sync_cmd() will
never be 0 from above caller list see [1], and all the other callers of
__nvme_submit_sync_cmd() use NVME_QID_ANY as qid value :-
1. nvme_submit_sync_cmd()
2. nvme_features()
3. nvme_sec_submit()
4. nvmf_reg_read32()
5. nvmf_reg_read64()
6. nvmf_ref_write32()
7. nvmf_connect_admin_queue()
Remove the conditional operator to pass the qid as 0 in the call to
blk_mq_alloc_requst_hctx().
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The function __nvme_submit_sync_cmd() has following list of callers
that sets the timeout value to 0 :-
Callers | Timeout value
------------------------------------------------
nvme_submit_sync_cmd() | 0
nvme_features() | 0
nvme_sec_submit() | 0
nvmf_reg_read32() | 0
nvmf_reg_read64() | 0
nvmf_reg_write32() | 0
nvmf_connect_admin_queue() | 0
nvmf_connect_io_queue() | 0
Remove the timeout function parameter from __nvme_submit_sync_cmd() and
adjust the rest of code accordingly.
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In the NVM Express Revision 1.4 spec, Figure 145 describes possible
values for an AER with event type "Error" (value 000b). For a
Persistent Internal Error (value 03h), the host should perform a
controller reset.
Add support for this error using code that already exists for
doing a controller reset. As part of this support, introduce
two utility functions for parsing the AER type and subtype.
This new support was tested in a lab environment where we can
generate the persistent internal error on demand, and observe
both the Linux side and NVMe controller side to see that the
controller reset has been done.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-----BEGIN PGP SIGNATURE-----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=celk
-----END PGP SIGNATURE-----
Merge tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
- Improve the type checking of request flags (Bart)
- Ensure queue mapping for a single queues always picks the right queue
(Bart)
- Sanitize the io priority handling (Jan)
- rq-qos race fix (Jinke)
- Reserved tags handling improvements (John)
- Separate memory alignment from file/disk offset aligment for O_DIRECT
(Keith)
- Add new ublk driver, userspace block driver using io_uring for
communication with the userspace backend (Ming)
- Use try_cmpxchg() to cleanup the code in various spots (Uros)
- Finally remove bdevname() (Christoph)
- Clean up the zoned device handling (Christoph)
- Clean up independent access range support (Christoph)
- Clean up and improve block sysfs handling (Christoph)
- Clean up and improve teardown of block devices.
This turns the usual two step process into something that is simpler
to implement and handle in block drivers (Christoph)
- Clean up chunk size handling (Christoph)
- Misc cleanups and fixes (Bart, Bo, Dan, GuoYong, Jason, Keith, Liu,
Ming, Sebastian, Yang, Ying)
* tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block: (178 commits)
ublk_drv: fix double shift bug
ublk_drv: make sure that correct flags(features) returned to userspace
ublk_drv: fix error handling of ublk_add_dev
ublk_drv: fix lockdep warning
block: remove __blk_get_queue
block: call blk_mq_exit_queue from disk_release for never added disks
blk-mq: fix error handling in __blk_mq_alloc_disk
ublk: defer disk allocation
ublk: rewrite ublk_ctrl_get_queue_affinity to not rely on hctx->cpumask
ublk: fold __ublk_create_dev into ublk_ctrl_add_dev
ublk: cleanup ublk_ctrl_uring_cmd
ublk: simplify ublk_ch_open and ublk_ch_release
ublk: remove the empty open and release block device operations
ublk: remove UBLK_IO_F_PREFLUSH
ublk: add a MAINTAINERS entry
block: don't allow the same type rq_qos add more than once
mmc: fix disk/queue leak in case of adding disk failure
ublk_drv: fix an IS_ERR() vs NULL check
ublk: remove UBLK_IO_F_INTEGRITY
ublk_drv: remove unneeded semicolon
...
Introduce a supports_pci_p2pdma() operation in nvme_ctrl_ops to
replace the fixed NVME_F_PCI_P2PDMA flag such that the dma_map_ops
flags can be checked for PCI P2PDMA support.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The issue exists when multipath is enabled and the namespace is
shared, but all the other controller checks at nvme_is_unique_nsid()
are false. The reason for this issue is that nvme_is_unique_nsid()
returns false when is called from nvme_mpath_alloc_disk() due to an
uninitialized value of head->shared. The patch fixes it by setting
head->shared before nvme_mpath_alloc_disk() is called.
Fixes: 5974ea7ce0 ("nvme: allow duplicate NSIDs for private namespaces")
Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We no longer use the 'reserved' arg in busy_tag_iter_fn for any iter
function so it may be dropped.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me> #nvme
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/1657109034-206040-6-git-send-email-john.garry@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We encountered a problem that the disconnect command hangs.
After analyzing the log and stack, we found that the triggering
process is as follows:
CPU0 CPU1
nvme_rdma_error_recovery_work
nvme_rdma_teardown_io_queues
nvme_do_delete_ctrl nvme_stop_queues
nvme_remove_namespaces
--clear ctrl->namespaces
nvme_start_queues
--no ns in ctrl->namespaces
nvme_ns_remove return(because ctrl is deleting)
blk_freeze_queue
blk_mq_freeze_queue_wait
--wait for ns to unquiesce to clean infligt IO, hang forever
This problem was not found in older kernels because we will flush
err work in nvme_stop_ctrl before nvme_remove_namespaces.It does not
seem to be modified for functional reasons, the patch can be revert
to solve the problem.
Revert commit 794a4cb3d2 ("nvme: remove the .stop_ctrl callout")
Signed-off-by: Ruozhu Li <liruozhu@huawei.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
blk_cleanup_disk is nothing but a trivial wrapper for put_disk now,
so remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for
all disks that do not have separately allocated queues, and thus remove
the need to call blk_cleanup_queue for them.
Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that
this function is intended only for separately allocated blk-mq queues.
This saves an extra queue freeze for devices without a separately
allocated queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This device shares the PCI ID with the Samsung 970 Evo Plus that
does not need or want the quirks. Move the the quirk entry to the
core table based on the model number instead.
Fixes: bc360b0b16 ("nvme-pci: add quirks for Samsung X5 SSDs")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
The recent global id check is finding poorly implemented devices in the
wild. Include relavant device information in the output to help quicken
an appropriate quirk patch.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This provides more context to users.
Old message:
[ 00.000000] No UUID available providing old NGUID
New message:
[ 00.000000] block nvme0n1: No UUID available providing old NGUID
Fixes: d934f9848a ("nvme: provide UUID value to userspace")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
-----BEGIN PGP SIGNATURE-----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=YqhC
-----END PGP SIGNATURE-----
Merge tag 'for-5.19/drivers-2022-06-02' of git://git.kernel.dk/linux-block
Pull more block driver updates from Jens Axboe:
"A collection of stragglers that were late on sending in their changes
and just followup fixes.
- NVMe fixes pull request via Christoph:
- set controller enable bit in a separate write (Niklas Cassel)
- disable namespace identifiers for the MAXIO MAP1001 (Christoph)
- fix a comment typo (Julia Lawall)"
- MD fixes pull request via Song:
- Remove uses of bdevname (Christoph Hellwig)
- Bug fixes (Guoqing Jiang, and Xiao Ni)
- bcache fixes series (Coly)
- null_blk zoned write fix (Damien)
- nbd fixes (Yu, Zhang)
- Fix for loop partition scanning (Christoph)"
* tag 'for-5.19/drivers-2022-06-02' of git://git.kernel.dk/linux-block: (23 commits)
block: null_blk: Fix null_zone_write()
nvmet: fix typo in comment
nvme: set controller enable bit in a separate write
nvme-pci: disable namespace identifiers for the MAXIO MAP1001
bcache: avoid unnecessary soft lockup in kworker update_writeback_rate()
nbd: use pr_err to output error message
nbd: fix possible overflow on 'first_minor' in nbd_dev_add()
nbd: fix io hung while disconnecting device
nbd: don't clear 'NBD_CMD_INFLIGHT' flag if request is not completed
nbd: fix race between nbd_alloc_config() and module removal
nbd: call genl_unregister_family() first in nbd_cleanup()
md: bcache: check the return value of kzalloc() in detached_dev_do_request()
bcache: memset on stack variables in bch_btree_check() and bch_sectors_dirty_init()
block, loop: support partitions without scanning
bcache: avoid journal no-space deadlock by reserving 1 journal bucket
bcache: remove incremental dirty sector counting for bch_sectors_dirty_init()
bcache: improve multithreaded bch_sectors_dirty_init()
bcache: improve multithreaded bch_btree_check()
md: fix double free of io_acct_set bioset
md: Don't set mddev private to NULL in raid0 pers->free
...
The NVM Express Base Specification 2.0 specifies in the description
of the CC – Controller Configuration register:
"Host software shall set the Arbitration Mechanism Selected (CC.AMS),
the Memory Page Size (CC.MPS), and the I/O Command Set Selected (CC.CSS)
to valid values prior to enabling the controller by setting CC.EN to ‘1’.
While we haven't seen any controller misbehaving while setting all bits
in a single write, let's do it in the order that it is written in the
spec, as there could potentially be controllers that are implemented to
rely on the configuration bits being set before enabling the controller.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Let the caller set it together with the end_io_data instead of passing
a pointless argument. Note the the target code did in fact already
set it and then just overrode it again by calling blk_execute_rq_nowait.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220524121530.943123-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-----BEGIN PGP SIGNATURE-----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=geQL
-----END PGP SIGNATURE-----
Merge tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Here are the driver updates queued up for 5.19. This contains:
- NVMe pull requests via Christoph:
- tighten the PCI presence check (Stefan Roese)
- fix a potential NULL pointer dereference in an error path (Kyle
Miller Smith)
- fix interpretation of the DMRSL field (Tom Yan)
- relax the data transfer alignment (Keith Busch)
- verbose error logging improvements (Max Gurtovoy, Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni, Christoph)
- set non-mdts limits in nvme_scan_work (Chaitanya Kulkarni)
- add support for TP4084 - Time-to-Ready Enhancements (Christoph)
- MD pull request via Song:
- Improve annotation in raid5 code, by Logan Gunthorpe
- Support MD_BROKEN flag in raid-1/5/10, by Mariusz Tkaczyk
- Other small fixes/cleanups
- null_blk series making the configfs side much saner (Damien)
- Various minor drbd cleanups and fixes (Haowen, Uladzislau, Jiapeng,
Arnd, Cai)
- Avoid using the system workqueue (and hence flushing it) in rnbd
(Jack)
- Avoid using the system workqueue (and hence flushing it) in aoe
(Tetsuo)
- Series fixing discard_alignment issues in drivers (Christoph)
- Small series fixing drivers poking at disk->part0 for openers
information (Christoph)
- Series fixing deadlocks in loop (Christoph, Tetsuo)
- Remove loop.h and add SPDX headers (Christoph)
- Various fixes and cleanups (Julia, Xie, Yu)"
* tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block: (72 commits)
mtip32xx: fix typo in comment
nvme: set non-mdts limits in nvme_scan_work
nvme: add support for TP4084 - Time-to-Ready Enhancements
nvme: split the enum used for various register constants
nbd: Fix hung on disconnect request if socket is closed before
nvme-fabrics: add a request timeout helper
nvme-pci: harden drive presence detect in nvme_dev_disable()
nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
nvme: mark internal passthru request RQF_QUIET
nvme: remove unneeded include from constants file
nvme: add missing status values to verbose logging
nvme: set dma alignment to dword
nvme: fix interpretation of DMRSL
loop: remove most the top-of-file boilerplate comment from the UAPI header
loop: remove most the top-of-file boilerplate comment
loop: add a SPDX header
loop: remove loop.h
block: null_blk: Improve device creation with configfs
block: null_blk: Cleanup messages
block: null_blk: Cleanup device creation and deletion
...
-----BEGIN PGP SIGNATURE-----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=0Rw1
-----END PGP SIGNATURE-----
Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Here are the core block changes for 5.19. This contains:
- blk-throttle accounting fix (Laibin)
- Series removing redundant assignments (Michal)
- Expose bio cache via the bio_set, so that DM can use it (Mike)
- Finish off the bio allocation interface cleanups by dealing with
the weirdest member of the family. bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic
cleanup semantics (Christoph)
- Clean up the block layer API so that APIs consumed by file systems
are (almost) only struct block_device based, so that file systems
don't have to poke into block layer internals like the
request_queue (Christoph)
- Clean up the blk_execute_rq* API (Christoph)
- Clean up various lose end in the blk-cgroup code to make it easier
to follow in preparation of reworking the blkcg assignment for bios
(Christoph)
- Fix use-after-free issues in BFQ when processes with merged queues
get moved to different cgroups (Jan)
- BFQ fixes (Jan)
- Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
Wolfgang, me)"
* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
blk-mq: fix typo in comment
bfq: Remove bfq_requeue_request_body()
bfq: Remove superfluous conversion from RQ_BIC()
bfq: Allow current waker to defend against a tentative one
bfq: Relax waker detection for shared queues
blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
blk-throttle: Set BIO_THROTTLED when bio has been throttled
blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
blk-cgroup: always terminate io.stat lines
block, bfq: make bfq_has_work() more accurate
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
block: cleanup the VM accounting in submit_bio
block: Fix the bio.bi_opf comment
block: reorder the REQ_ flags
blk-iocost: combine local_stat and desc_stat to stat
block: improve the error message from bio_check_eod
block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
block: remove superfluous calls to blkcg_bio_issue_init
kthread: unexport kthread_blkcg
blk-cgroup: cleanup blkcg_maybe_throttle_current
...
Add two new opcodes that userspace can use for admin commands:
NVME_URING_CMD_ADMIN : non-vectroed
NVME_URING_CMD_ADMIN_VEC : vectored variant
Wire up support when these are issued on controller node(/dev/nvmeX).
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220520090630.70394-3-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In current implementation we set the non-mdts limits by calling
nvme_init_non_mdts_limits() from nvme_init_ctrl_finish().
This also tries to set the limits for the discovery controller which
has no I/O queues resulting in the warning message reported by the
nvme_log_error() when running blktest nvme/002: -
[ 2005.155946] run blktests nvme/002 at 2022-04-09 16:57:47
[ 2005.192223] loop: module loaded
[ 2005.196429] nvmet: adding nsid 1 to subsystem blktests-subsystem-0
[ 2005.200334] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
<------------------------------SNIP---------------------------------->
[ 2008.958108] nvmet: adding nsid 1 to subsystem blktests-subsystem-997
[ 2008.962082] nvmet: adding nsid 1 to subsystem blktests-subsystem-998
[ 2008.966102] nvmet: adding nsid 1 to subsystem blktests-subsystem-999
[ 2008.973132] nvmet: creating discovery controller 1 for subsystem nqn.2014-08.org.nvmexpress.discovery for NQN testhostnqn.
*[ 2008.973196] nvme1: Identify(0x6), Invalid Field in Command (sct 0x0 / sc 0x2) MORE DNR*
[ 2008.974595] nvme nvme1: new ctrl: "nqn.2014-08.org.nvmexpress.discovery"
[ 2009.103248] nvme nvme1: Removing ctrl: NQN "nqn.2014-08.org.nvmexpress.discovery"
Move the call of nvme_init_non_mdts_limits() to nvme_scan_work() after
we verify that I/O queues are created since that is a converging point
for each transport where these limits are actually used.
1. FC :
nvme_fc_create_association()
...
nvme_fc_create_io_queues(ctrl);
...
nvme_start_ctrl()
nvme_scan_queue()
nvme_scan_work()
2. PCIe:-
nvme_reset_work()
...
nvme_setup_io_queues()
nvme_create_io_queues()
nvme_alloc_queue()
...
nvme_start_ctrl()
nvme_scan_queue()
nvme_scan_work()
3. RDMA :-
nvme_rdma_setup_ctrl
...
nvme_rdma_configure_io_queues
...
nvme_start_ctrl()
nvme_scan_queue()
nvme_scan_work()
4. TCP :-
nvme_tcp_setup_ctrl
...
nvme_tcp_configure_io_queues
...
nvme_start_ctrl()
nvme_scan_queue()
nvme_scan_work()
* nvme_scan_work()
...
nvme_validate_or_alloc_ns()
nvme_alloc_ns()
nvme_update_ns_info()
nvme_update_disk_info()
nvme_config_discard() <---
blk_queue_max_write_zeroes_sectors() <---
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Add support for using longer timeouts during controller initialization
and letting the controller come up with namespaces that are not ready
for I/O yet. We skip these not ready namespaces during scanning and
only bring them online once anoter scan is kicked off by the AEN that
is set when the NRDY bit gets set in the I/O Command Set Independent
Identify Namespace Data Structure. This asynchronous probing avoids
blocking the kernel boot when controllers take a very long time to
recover after unclean shutdowns (up to minutes).
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Jens Axboe
Linus Torvalds
Christoph Hellwig
Keith Busch
Maurizio Lombardi
Sagi Grimberg
Pankaj Raghav
Mike Christie
Caleb Sander
Greg Kroah-Hartman
Joel Granados
Uday Shankar
Chao Leng
Dan Carpenter
Michael Kelley
Kanchan Joshi
Wolfram Sang
Linjun Bao
Nick Bowler
Hannes Reinecke
Chaitanya Kulkarni
Logan Gunthorpe
Israel Rukshin
John Garry
Ruozhu Li
Thomas Weißschuh
Niklas Cassel