All in drivers. The largest change is the ufs one which has to
introduce a new function to check the power state before doing the
update and the most widely encountered one is the obvious change to sg
to not use GFP_ATOMIC.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"All in drivers.
The largest change is the ufs one which has to introduce a new
function to check the power state before doing the update and the most
widely encountered one is the obvious change to sg to not use
GFP_ATOMIC"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: iscsi: reject invalid size Extended CDB AHS
scsi: ufs: core: Fix bRefClkFreq write failure in HS-LSS mode
scsi: hisi_sas: Fix sparse warnings in prep_ata_v3_hw()
scsi: pmcraid: Fix typo in comments
scsi: scsi_dh_alua: Increase default ALUA timeout to maximum spec value
scsi: smartpqi: Silence a recursive lock warning
scsi: mpt3sas: Limit NVMe request size to 2 MiB
scsi: sg: Don't use GFP_ATOMIC in sg_start_req()
scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()
The cdrom core never calls set_disk_ro() for a registered device, so
BLKROGET on a CD-ROM device always returns 0 (writable), even when the
drive has no write capabilities and writes will inevitably fail. This
causes problems for userspace that relies on BLKROGET to determine
whether a block device is read-only. For example, systemd's loop device
setup uses BLKROGET to decide whether to create a loop device with
LO_FLAGS_READ_ONLY. Without the read-only flag, writes pass through the
loop device to the CD-ROM and fail with I/O errors. systemd-fsck
similarly checks BLKROGET to decide whether to run fsck in no-repair
mode (-n).
The write-capability bits in cdi->mask come from two different sources:
CDC_DVD_RAM and CDC_CD_RW are populated by the driver from the MODE
SENSE capabilities page (page 0x2A) before register_cdrom() is called,
while CDC_MRW_W and CDC_RAM require the MMC GET CONFIGURATION command
and were only probed by cdrom_open_write() at device open time. This
meant that any attempt to compute the writable state from the full
mask at probe time was incorrect, because the GET CONFIGURATION bits
were still unset (and cdi->mask is initialized such that capabilities
are assumed present).
Fix this by factoring the GET CONFIGURATION probing out of
cdrom_open_write() into a new exported helper,
cdrom_probe_write_features(), and having sr call it from sr_probe()
right after get_capabilities() has populated the MODE SENSE bits.
register_cdrom() then calls set_disk_ro() based on the full
write-capability mask (CDC_DVD_RAM | CDC_MRW_W | CDC_RAM | CDC_CD_RW)
so the block layer reflects the drive's actual write support. The
feature queries used (CDF_MRW and CDF_RWRT via GET CONFIGURATION with
RT=00) report drive-level capabilities that are persistent across
media, so a single probe before register_cdrom() is sufficient and the
redundant probe at open time is dropped.
With set_disk_ro() now accurate, the long-vestigial cd->writeable flag
in sr can go: get_capabilities() used to set cd->writeable based on
the same four mask bits, but because CDC_MRW_W and CDC_RAM default to
"capability present" in cdi->mask and aren't touched by MODE SENSE,
the condition that gated cd->writeable was always true, making it
unconditionally 1. Replace the corresponding gate in sr_init_command()
with get_disk_ro(cd->disk), which turns a previously no-op check into
a real one and also catches kernel-internal bio writers that bypass
blkdev_write_iter()'s bdev_read_only() check.
The sd driver (SCSI disks) does not have this problem because it
checks the MODE SENSE Write Protect bit and calls set_disk_ro()
accordingly. The sr driver cannot use the same approach because the
MMC specification does not define the WP bit in the MODE SENSE
device-specific parameter byte for CD-ROM devices.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Daan De Meyer <daan@amutable.com>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://patch.msgid.link/20260427210139.1400-2-phil@philpotter.co.uk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Usual driver updates (ufs, lpfc, fnic, target, mpi3mr). The
substantive core changes are adding a 'serial' sysfs attribute and
getting sd to support > PAGE_SIZE sectors.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"Usual driver updates (ufs, lpfc, fnic, target, mpi3mr).
The substantive core changes are adding a 'serial' sysfs attribute and
getting sd to support > PAGE_SIZE sectors"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (98 commits)
scsi: target: Don't validate ignored fields in PROUT PREEMPT
scsi: qla2xxx: Use nr_cpu_ids instead of NR_CPUS for qp_cpu_map allocation
scsi: ufs: core: Disable timestamp for Kioxia THGJFJT0E25BAIP
scsi: mpi3mr: Fix typo
scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails
scsi: libsas: Delete unused to_dom_device() and to_dev_attr()
scsi: storvsc: Handle PERSISTENT_RESERVE_IN truncation for Hyper-V vFC
scsi: iscsi_tcp: Remove unneeded selections of CRYPTO and CRYPTO_MD5
scsi: lpfc: Update lpfc version to 15.0.0.0
scsi: lpfc: Add PCI ID support for LPe42100 series adapters
scsi: lpfc: Introduce 128G link speed selection and support
scsi: lpfc: Check ASIC_ID register to aid diagnostics during failed fw updates
scsi: lpfc: Update construction of SGL when XPSGL is enabled
scsi: lpfc: Remove deprecated PBDE feature
scsi: lpfc: Add REG_VFI mailbox cmd error handling
scsi: lpfc: Log MCQE contents for mbox commands with no context
scsi: lpfc: Select mailbox rq_create cmd version based on SLI4 if_type
scsi: lpfc: Break out of IRQ affinity assignment when mask reaches nr_cpu_ids
scsi: ufs: core: Make the header files self-contained
scsi: ufs: core: Remove an include directive from ufshcd-crypto.h
...
In prep_ata_v3_hw(), add cpu_to_le32() to fix warning:
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:1448:26: sparse: sparse: invalid assignment: |=
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:1448:26: sparse: left side has type restricted __le32
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:1448:26: sparse: right side has type unsigned int
Fixes: 8aa580cd92 ("scsi: hisi_sas: Enable force phy when SATA disk directly connected")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604191850.IVYPTaML-lkp@intel.com/
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Link: https://patch.msgid.link/20260420021044.3339459-1-liyihang9@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The ALUA handler maps a 0 value (no implicit transition timeout provided
by the target) to the ALUA_FAILOVER_TIMEOUT constant, currently 60
seconds. This means the kernel already does not accept an infinite
transition time.
However, 60 seconds is insufficient for some arrays that may take longer
to complete ALUA transitions. Since the highest value allowed by the
SCSI specification for the implicit transition timeout is a single byte
(255 seconds), change the default to 255. This way, when a target does
not provide an explicit transition timeout, we default to the maximum
value the spec allows rather than an arbitrary 60 second limit.
Co-developed-by: Krishna Kant <krishna.kant@purestorage.com>
Signed-off-by: Krishna Kant <krishna.kant@purestorage.com>
Co-developed-by: Riya Savla <rsavla@purestorage.com>
Signed-off-by: Riya Savla <rsavla@purestorage.com>
Signed-off-by: Brian Bunker <brian@purestorage.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://patch.msgid.link/20260416165512.26497-2-brian@purestorage.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
On systems with multiple controllers debug kernel shows
WARNING: possible recursive locking detected
during shutdown.
Each controller does have its own ctrl_info (and mutex) and that isn't
correctly recognized by debug kernel. Suppress the warning by releasing
the mutex at the end of pqi_shutdown().
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Don Brace <don.brace@microchip.com>
Link: https://patch.msgid.link/20260414124118.23661-1-thenzl@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
sg_start_req() is called from normal user context and can sleep when
waiting for memory. Switch it to use GFP_KERNEL, which fixes allocation
failures seen with the bio_alloc rework.
Fixes: b520c4eef8 ("block: split bio_alloc_bioset more clearly into a fast and slowpath")
Reported-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260415060813.807659-2-hch@lst.de
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Core & protocols
----------------
- Support HW queue leasing, allowing containers to be granted access
to HW queues for zero-copy operations and AF_XDP.
- Number of code moves to help the compiler with inlining.
Avoid output arguments for returning drop reason where possible.
- Rework drop handling within qdiscs to include more metadata
about the reason and dropping qdisc in the tracepoints.
- Remove the rtnl_lock use from IP Multicast Routing.
- Pack size information into the Rx Flow Steering table pointer
itself. This allows making the table itself a flat array of u32s,
thus making the table allocation size a power of two.
- Report TCP delayed ack timer information via socket diag.
- Add ip_local_port_step_width sysctl to allow distributing the randomly
selected ports more evenly throughout the allowed space.
- Add support for per-route tunsrc in IPv6 segment routing.
- Start work of switching sockopt handling to iov_iter.
- Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid
buffer size drifting up.
- Support MSG_EOR in MPTCP.
- Add stp_mode attribute to the bridge driver for STP mode selection.
This addresses concerns about call_usermodehelper() usage.
- Remove UDP-Lite support (as announced in 2023).
- Remove support for building IPv6 as a module.
Remove the now unnecessary function calling indirection.
Cross-tree stuff
----------------
- Move Michael MIC code from generic crypto into wireless,
it's considered insecure but some WiFi networks still need it.
Netfilter
---------
- Switch nft_fib_ipv6 module to no longer need temporary dst_entry
object allocations by using fib6_lookup() + RCU.
Florian W reports this gets us ~13% higher packet rate.
- Convert IPVS's global __ip_vs_mutex to per-net service_mutex and
switch the service tables to be per-net. Convert some code that
walks the service lists to use RCU instead of the service_mutex.
- Add more opinionated input validation to lower security exposure.
- Make IPVS hash tables to be per-netns and resizable.
Wireless
--------
- Finished assoc frame encryption/EPPKE/802.1X-over-auth.
- Radar detection improvements.
- Add 6 GHz incumbent signal detection APIs.
- Multi-link support for FILS, probe response templates and
client probing.
- New APIs and mac80211 support for NAN (Neighbor Aware Networking,
aka Wi-Fi Aware) so less work must be in firmware.
Driver API
----------
- Add numerical ID for devlink instances (to avoid having to create
fake bus/device pairs just to have an ID). Support shared devlink
instances which span multiple PFs.
- Add standard counters for reporting pause storm events
(implement in mlx5 and fbnic).
- Add configuration API for completion writeback buffering
(implement in mana).
- Support driver-initiated change of RSS context sizes.
- Support DPLL monitoring input frequency (implement in zl3073x).
- Support per-port resources in devlink (implement in mlx5).
Misc
----
- Expand the YAML spec for Netfilter.
Drivers
-------
- Software:
- macvlan: support multicast rx for bridge ports with shared source
MAC address
- team: decouple receive and transmit enablement for IEEE 802.3ad
LACP "independent control"
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- support high order pages in zero-copy mode (for payload
coalescing)
- support multiple packets in a page (for systems with 64kB pages)
- Broadcom 25-400GE (bnxt):
- implement XDP RSS hash metadata extraction
- add software fallback for UDP GSO, lowering the IOMMU cost
- Broadcom 800GE (bnge):
- add link status and configuration handling
- add various HW and SW statistics
- Marvell/Cavium:
- NPC HW block support for cn20k
- Huawei (hinic3):
- add mailbox / control queue
- add rx VLAN offload
- add driver info and link management
- Ethernet NICs:
- Marvell/Aquantia:
- support reading SFP module info on some AQC100 cards
- Realtek PCI (r8169):
- add support for RTL8125cp
- Realtek USB (r8152):
- support for the RTL8157 5Gbit chip
- add 2500baseT EEE status/configuration support
- Ethernet NICs embedded and off-the-shelf IP:
- Synopsys (stmmac):
- cleanup and reorganize SerDes handling and PCS support
- cleanup descriptor handling and per-platform data
- cleanup and consolidate MDIO defines and handling
- shrink driver memory use for internal structures
- improve Tx IRQ coalescing
- improve TCP segmentation handling
- add support for Spacemit K3
- Cadence (macb):
- support PHYs that have inband autoneg disabled with GEM
- support IEEE 802.3az EEE
- rework usrio capabilities and handling
- AMD (xgbe):
- improve power management for S0i3
- improve TX resilience for link-down handling
- Virtual:
- Google cloud vNIC:
- support larger ring sizes in DQO-QPL mode
- improve HW-GRO handling
- support UDP GSO for DQO format
- PCIe NTB:
- support queue count configuration
- Ethernet PHYs:
- automatically disable PHY autonomous EEE if MAC is in charge
- Broadcom:
- add BCM84891/BCM84892 support
- Micrel:
- support for LAN9645X internal PHY
- Realtek:
- add RTL8224 pair order support
- support PHY LEDs on RTL8211F-VD
- support spread spectrum clocking (SSC)
- Maxlinear:
- add PHY-level statistics via ethtool
- Ethernet switches:
- Maxlinear (mxl862xx):
- support for bridge offloading
- support for VLANs
- support driver statistics
- Bluetooth:
- large number of fixes and new device IDs
- Mediatek:
- support MT6639 (MT7927)
- support MT7902 SDIO
- WiFi:
- Intel (iwlwifi):
- UNII-9 and continuing UHR work
- MediaTek (mt76):
- mt7996/mt7925 MLO fixes/improvements
- mt7996 NPU support (HW eth/wifi traffic offload)
- Qualcomm (ath12k):
- monitor mode support on IPQ5332
- basic hwmon temperature reporting
- support IPQ5424
- Realtek:
- add USB RX aggregation to improve performance
- add USB TX flow control by tracking in-flight URBs
- Cellular:
- IPA v5.2 support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Support HW queue leasing, allowing containers to be granted access
to HW queues for zero-copy operations and AF_XDP
- Number of code moves to help the compiler with inlining. Avoid
output arguments for returning drop reason where possible
- Rework drop handling within qdiscs to include more metadata about
the reason and dropping qdisc in the tracepoints
- Remove the rtnl_lock use from IP Multicast Routing
- Pack size information into the Rx Flow Steering table pointer
itself. This allows making the table itself a flat array of u32s,
thus making the table allocation size a power of two
- Report TCP delayed ack timer information via socket diag
- Add ip_local_port_step_width sysctl to allow distributing the
randomly selected ports more evenly throughout the allowed space
- Add support for per-route tunsrc in IPv6 segment routing
- Start work of switching sockopt handling to iov_iter
- Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid
buffer size drifting up
- Support MSG_EOR in MPTCP
- Add stp_mode attribute to the bridge driver for STP mode selection.
This addresses concerns about call_usermodehelper() usage
- Remove UDP-Lite support (as announced in 2023)
- Remove support for building IPv6 as a module. Remove the now
unnecessary function calling indirection
Cross-tree stuff:
- Move Michael MIC code from generic crypto into wireless, it's
considered insecure but some WiFi networks still need it
Netfilter:
- Switch nft_fib_ipv6 module to no longer need temporary dst_entry
object allocations by using fib6_lookup() + RCU.
Florian W reports this gets us ~13% higher packet rate
- Convert IPVS's global __ip_vs_mutex to per-net service_mutex and
switch the service tables to be per-net. Convert some code that
walks the service lists to use RCU instead of the service_mutex
- Add more opinionated input validation to lower security exposure
- Make IPVS hash tables to be per-netns and resizable
Wireless:
- Finished assoc frame encryption/EPPKE/802.1X-over-auth
- Radar detection improvements
- Add 6 GHz incumbent signal detection APIs
- Multi-link support for FILS, probe response templates and client
probing
- New APIs and mac80211 support for NAN (Neighbor Aware Networking,
aka Wi-Fi Aware) so less work must be in firmware
Driver API:
- Add numerical ID for devlink instances (to avoid having to create
fake bus/device pairs just to have an ID). Support shared devlink
instances which span multiple PFs
- Add standard counters for reporting pause storm events (implement
in mlx5 and fbnic)
- Add configuration API for completion writeback buffering (implement
in mana)
- Support driver-initiated change of RSS context sizes
- Support DPLL monitoring input frequency (implement in zl3073x)
- Support per-port resources in devlink (implement in mlx5)
Misc:
- Expand the YAML spec for Netfilter
Drivers
- Software:
- macvlan: support multicast rx for bridge ports with shared
source MAC address
- team: decouple receive and transmit enablement for IEEE 802.3ad
LACP "independent control"
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- support high order pages in zero-copy mode (for payload
coalescing)
- support multiple packets in a page (for systems with 64kB
pages)
- Broadcom 25-400GE (bnxt):
- implement XDP RSS hash metadata extraction
- add software fallback for UDP GSO, lowering the IOMMU cost
- Broadcom 800GE (bnge):
- add link status and configuration handling
- add various HW and SW statistics
- Marvell/Cavium:
- NPC HW block support for cn20k
- Huawei (hinic3):
- add mailbox / control queue
- add rx VLAN offload
- add driver info and link management
- Ethernet NICs:
- Marvell/Aquantia:
- support reading SFP module info on some AQC100 cards
- Realtek PCI (r8169):
- add support for RTL8125cp
- Realtek USB (r8152):
- support for the RTL8157 5Gbit chip
- add 2500baseT EEE status/configuration support
- Ethernet NICs embedded and off-the-shelf IP:
- Synopsys (stmmac):
- cleanup and reorganize SerDes handling and PCS support
- cleanup descriptor handling and per-platform data
- cleanup and consolidate MDIO defines and handling
- shrink driver memory use for internal structures
- improve Tx IRQ coalescing
- improve TCP segmentation handling
- add support for Spacemit K3
- Cadence (macb):
- support PHYs that have inband autoneg disabled with GEM
- support IEEE 802.3az EEE
- rework usrio capabilities and handling
- AMD (xgbe):
- improve power management for S0i3
- improve TX resilience for link-down handling
- Virtual:
- Google cloud vNIC:
- support larger ring sizes in DQO-QPL mode
- improve HW-GRO handling
- support UDP GSO for DQO format
- PCIe NTB:
- support queue count configuration
- Ethernet PHYs:
- automatically disable PHY autonomous EEE if MAC is in charge
- Broadcom:
- add BCM84891/BCM84892 support
- Micrel:
- support for LAN9645X internal PHY
- Realtek:
- add RTL8224 pair order support
- support PHY LEDs on RTL8211F-VD
- support spread spectrum clocking (SSC)
- Maxlinear:
- add PHY-level statistics via ethtool
- Ethernet switches:
- Maxlinear (mxl862xx):
- support for bridge offloading
- support for VLANs
- support driver statistics
- Bluetooth:
- large number of fixes and new device IDs
- Mediatek:
- support MT6639 (MT7927)
- support MT7902 SDIO
- WiFi:
- Intel (iwlwifi):
- UNII-9 and continuing UHR work
- MediaTek (mt76):
- mt7996/mt7925 MLO fixes/improvements
- mt7996 NPU support (HW eth/wifi traffic offload)
- Qualcomm (ath12k):
- monitor mode support on IPQ5332
- basic hwmon temperature reporting
- support IPQ5424
- Realtek:
- add USB RX aggregation to improve performance
- add USB TX flow control by tracking in-flight URBs
- Cellular:
- IPA v5.2 support"
* tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1561 commits)
net: pse-pd: fix kernel-doc function name for pse_control_find_by_id()
wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit
wireguard: allowedips: remove redundant space
tools: ynl: add sample for wireguard
wireguard: allowedips: Use kfree_rcu() instead of call_rcu()
MAINTAINERS: Add netkit selftest files
selftests/net: Add additional test coverage in nk_qlease
selftests/net: Split netdevsim tests from HW tests in nk_qlease
tools/ynl: Make YnlFamily closeable as a context manager
net: airoha: Add missing PPE configurations in airoha_ppe_hw_init()
net: airoha: Fix VIP configuration for AN7583 SoC
net: caif: clear client service pointer on teardown
net: strparser: fix skb_head leak in strp_abort_strp()
net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()
selftests/bpf: add test for xdp_master_redirect with bond not up
net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master
net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration
sctp: disable BH before calling udp_tunnel_xmit_skb()
sctp: fix missing encap_port propagation for GSO fragments
net: airoha: Rely on net_device pointer in ETS callbacks
...
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Merge tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- Add shared memory zero-copy I/O support for ublk, bypassing per-I/O
copies between kernel and userspace by matching registered buffer
PFNs at I/O time. Includes selftests.
- Refactor bio integrity to support filesystem initiated integrity
operations and arbitrary buffer alignment.
- Clean up bio allocation, splitting bio_alloc_bioset() into clear fast
and slow paths. Add bio_await() and bio_submit_or_kill() helpers,
unify synchronous bi_end_io callbacks.
- Fix zone write plug refcount handling and plug removal races. Add
support for serializing zone writes at QD=1 for rotational zoned
devices, yielding significant throughput improvements.
- Add SED-OPAL ioctls for Single User Mode management and a STACK_RESET
command.
- Add io_uring passthrough (uring_cmd) support to the BSG layer.
- Replace pp_buf in partition scanning with struct seq_buf.
- zloop improvements and cleanups.
- drbd genl cleanup, switching to pre_doit/post_doit.
- NVMe pull request via Keith:
- Fabrics authentication updates
- Enhanced block queue limits support
- Workqueue usage updates
- A new write zeroes device quirk
- Tagset cleanup fix for loop device
- MD pull requests via Yu Kuai:
- Fix raid5 soft lockup in retry_aligned_read()
- Fix raid10 deadlock with check operation and nowait requests
- Fix raid1 overlapping writes on writemostly disks
- Fix sysfs deadlock on array_state=clear
- Proactive RAID-5 parity building with llbitmap, with
write_zeroes_unmap optimization for initial sync
- Fix llbitmap barrier ordering, rdev skipping, and bitmap_ops
version mismatch fallback
- Fix bcache use-after-free and uninitialized closure
- Validate raid5 journal metadata payload size
- Various cleanups
- Various other fixes, improvements, and cleanups
* tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (146 commits)
ublk: fix tautological comparison warning in ublk_ctrl_reg_buf
scsi: bsg: fix buffer overflow in scsi_bsg_uring_cmd()
block: refactor blkdev_zone_mgmt_ioctl
MAINTAINERS: update ublk driver maintainer email
Documentation: ublk: address review comments for SHMEM_ZC docs
ublk: allow buffer registration before device is started
ublk: replace xarray with IDA for shmem buffer index allocation
ublk: simplify PFN range loop in __ublk_ctrl_reg_buf
ublk: verify all pages in multi-page bvec fall within registered range
ublk: widen ublk_shmem_buf_reg.len to __u64 for 4GB buffer support
xfs: use bio_await in xfs_zone_gc_reset_sync
block: add a bio_submit_or_kill helper
block: factor out a bio_await helper
block: unify the synchronous bi_end_io callbacks
xfs: fix number of GC bvecs
selftests/ublk: add read-only buffer registration test
selftests/ublk: add filesystem fio verify test for shmem_zc
selftests/ublk: add hugetlbfs shmem_zc test for loop target
selftests/ublk: add shared memory zero-copy test
selftests/ublk: add UBLK_F_SHMEM_ZC support for loop target
...
The bounds checking in scsi_bsg_uring_cmd() does not work because
cmd->request_len is a u32 and scmd->cmd_len is a u16. We check that
scmd->cmd_len is valid but if the cmd->request_len is more than
USHRT_MAX it would still lead to a buffer overflow when we do the
copy_from_user().
Fixes: 7b6d3255e7 ("scsi: bsg: add io_uring passthrough handler")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/adjNnMYK7A7KMNkA@stanley.mountain
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Change the memory allocation for qp_cpu_map to use the actual number of
CPUs ('nr_cpu_ids') instead of the maximum possible CPUs ('NR_CPUS').
This saves memory on systems where the maximum CPU limit is much higher
than the active CPU count.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Link: https://patch.msgid.link/20260331053245.1839-1-lirongqing@baidu.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If device_add(&sdkp->disk_dev) fails, put_device() runs
scsi_disk_release(), which frees the scsi_disk but leaves the gendisk
referenced. The device_add_disk() error path in sd_probe() calls
put_disk(gd); call put_disk(gd) here to mirror that cleanup.
Fixes: 265dfe8ebb ("scsi: sd: Free scsi_disk device via put_device()")
Cc: stable@vger.kernel.org
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Link: https://patch.msgid.link/20260330014952.152776-1-yangxiuwei@kylinos.cn
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The storvsc driver has become stricter in handling SRB status codes
returned by the Hyper-V host. When using Virtual Fibre Channel (vFC)
passthrough, the host may return SRB_STATUS_DATA_OVERRUN for
PERSISTENT_RESERVE_IN commands if the allocation length in the CDB does
not match the host's expected response size.
Currently, this status is treated as a fatal error, propagating
Host_status=0x07 [DID_ERROR] to the SCSI mid-layer. This causes
userspace storage utilities (such as sg_persist) to fail with transport
errors, even when the host has actually returned the requested
reservation data in the buffer.
Refactor the existing command-specific workarounds into a new helper
function, storvsc_host_mishandles_cmd(), and add PERSISTENT_RESERVE_IN
to the list of commands where SRB status errors should be suppressed for
vFC devices. This ensures that the SCSI mid-layer processes the returned
data buffer instead of terminating the command.
Signed-off-by: Li Tian <litian@redhat.com>
Reviewed-by: Long Li <longli@microsoft.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Link: https://patch.msgid.link/20260406015344.12566-1-litian@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
As far as I can tell, CRYPTO_MD5 has been unnecessary here ever since it
was added by commit c899e4ef96 ("[SCSI] open-iscsi/linux-iscsi-5
Initiator: Kconfig update") in 2005.
CRYPTO was needed until commit 92186c1455 ("scsi: iscsi_tcp: Switch to
using the crc32c library"), but is no longer needed.
Remove these unnecessary kconfig selections.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Link: https://patch.msgid.link/20260404203003.33738-1-ebiggers@kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Justin Tee <justintee8345@gmail.com> says:
Update lpfc to revision 15.0.0.0
This patch set adds support for the G8 ASIC found on the LPe42100
series adapter models.
Updates are made to irq affinity assignment, mailbox command handling
related to initialization, SGL construction, firmware download
diagnostics, and the removal of an outdated performance feature. We
also add 128G link speed selection and support.
The patches were cut against Martin's 7.1/scsi-queue tree.
Link: https://patch.msgid.link/20260331205928.119833-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update supported pci_device_id table to include the values for the G8 ASIC
Device ID utilized by LPe42100 series of adapters. The default reporting
string will be "LPe42100".
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-10-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
128G link speed selection and support is added for various mailbox
commands, defines, and ACQE handling. The default behavior to
autonegotiate supported link speed remains the same.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-9-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When WRITE_OBJECT mailbox command fails during firmware update, the
lpfc_log_write_firmware_error() routine is used to log and parse commonly
found error codes. Update this routine to also include ASIC_ID register
checks for notifying users of incompatible images.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-8-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The construction of SGLs is updated to safeguard ASIC boundary requirements
when using XPSGL.
The LSP type SGE is used to notify where a continuing SGL resides.
Typically, this means that the LSP is the last SGE in an SGL because the
current SGL has reached its maximum size and the LSP is used to refer to
the next follow up SGL. Due to ASIC boundary requirements, there is a need
to ensure a 4 KB boundary is not crossed. Thus, for a maximum size of 256
byte SGLs or 16 SGEs, this means restricting the LSP to being the 12th SGE
for the very first SGL that is used for pre-registration. If additional
SGEs are needed, the LSP will be the last SGE position within that follow
up SGL as was previously implemented.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-7-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The PBDE feature is no longer supported and its related fields are removed
in this patch. There are no expected side effects with regards to existing
functionality.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-6-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If lpfc_issue_reg_vfi() returns an error in lpfc_rcv_plogi(), then
execution of lpfc_rcv_plogi() continues and lpfc_reg_rpi() is called, which
allocates an mbuf. When this REG_RPI mailbox is issued, it inevitably
fails because the VFI is not registered. However, the REG_RPI failure does
not free the mbuf that was allocated in lpfc_reg_rpi() because there is no
check for mbox error status in lpfc_defer_plogi_acc().
Fix by adding a check in lpfc_rcv_plogi() if lpfc_reg_vfi() fails, then
exit early. Also, add mailbox status check in lpfc_defer_plogi_acc to
enter the REG_RPI mbox_cmpl functions and free the allocated mbuf.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-5-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update log message to display the entirety of an MCQE for which there is no
submission context. This log message is not expected to occur and hence is
tagged as a LOG_TRACE_EVENT. As such, move the hbalock release to before
this log message so that the trace event process does not hold the hbalock
for too long.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When specifying rq version, it is preferred to refer to SLI4 interface type
instead of the get_sli4_parameters mailbox command response. If SLI4
if_type is 2 or above, then the newer version 1 is used for rq_create
mailbox commands. Otherwise, version 0 is used and is meant for older
adapters.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-3-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The purpose of the lpfc_next_online_cpu() call is to save the CPU index for
the next iteration of the for (index = 0; index < vectors; index++) loop.
Because we’ve reached the last iteration of the loop, cpumask_next(cpu,
aff_mask) returns nr_cpu_ids. Thus, if we already know we've reached the
last iteration of the IRQ affinity assignment loop, then we can just break
and exit.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260331205928.119833-2-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following compiler warnings:
aicasm_gram.y:1107:24: warning: comparison of different enumeration types
('scope_type' and 'enum yytokentype') [-Wenum-compare]
1107 | || last_scope->type == T_ELSE) {
| ~~~~~~~~~~~~~~~~ ^ ~~~~~~
aicasm_scan.l:392:14: warning: using the result of an assignment as a condition
without parentheses [-Wparentheses]
392 | while (c = *yptr++) {
| ~~^~~~~~~~~
aicasm_macro_scan.l:153:1: warning: non-void function does not return a value
[-Wreturn-type]
153 | }
| ^
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260402153341.2909184-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
hpsa formats the controller name into h->devname[8] and derives
interrupt names from it in h->intrname[][16]. Once host_no reaches four
digits, "hpsa%d" no longer fits in devname, and the derived IRQ names
can then overrun the interrupt-name buffers as well.
The previous fix switched these builders to bounded formatting, but that
would truncate user-visible controller and IRQ names. Keep the existing
names intact instead by enlarging the fixed buffers to cover the current
formatted strings.
Fixes: 2946e82bdd ("hpsa: use scsi host_no as hpsa controller number")
Fixes: 8b47004a55 ("hpsa: add interrupt number to /proc/interrupts interrupt name")
Acked-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260401120552.78541-1-pengpeng@iscas.ac.cn
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Maintaining a modular IPv6 stack offers image size savings for specific
setups, this benefit is outweighed by the architectural burden it
imposes on the subsystems on implementation and maintenance. Therefore,
drop it.
Change CONFIG_IPV6 from tristate to bool. Remove all Kconfig
dependencies across the tree that explicitly checked for IPV6=m. In
addition, remove MODULE_DESCRIPTION(), MODULE_ALIAS(), MODULE_AUTHOR()
and MODULE_LICENSE().
This is also replacing module_init() by device_initcall(). It is not
possible to use fs_initcall() as IPv4 does because that creates a race
condition on IPv6 addrconf.
Finally, modify the default configs from CONFIG_IPV6=m to CONFIG_IPV6=y
except for m68k as according to the bloat-o-meter the image is
increasing by 330KB~ and that isn't acceptable. Instead, disable IPv6 on
this architecture by default. This is aligned with m68k RAM requirements
and recommendations [1].
[1] http://www.linux-m68k.org/faq/ram.html
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Tested-by: Ricardo B. Marlière <rbm@suse.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org> # arm64
Link: https://patch.msgid.link/20260325120928.15848-2-fmancera@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Driver (and enclosure) only fixes. Most are obvious. The big change
is in the tcm_loop driver to add command draining to error handling
(the lack of which was causing hangs with the potential for double use
crashes).
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Driver (and enclosure) only fixes. Most are obvious. The big change is
in the tcm_loop driver to add command draining to error handling (the
lack of which was causing hangs with the potential for double use
crashes)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: file: Use kzalloc_flex for aio_cmd
scsi: scsi_transport_sas: Fix the maximum channel scanning issue
scsi: target: tcm_loop: Drain commands in target_reset handler
scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done()
scsi: ses: Handle positive SCSI error from ses_recv_diag()
Enhance the IOC shutdown process to handle transient failures during
controller cleanup. Add retry logic with configurable maximum retry
count (MPI3MR_MAX_SHUTDOWN_RETRY_COUNT) and proper timeout management
that resets on each retry attempt. This ensures shutdown can recover
from temporary issues without failing completely.
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://patch.msgid.link/20260320090326.47544-4-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Track queue-full conditions on operational request queues in the driver.
Record the last host tag returned to the SCSI mid-layer and count I/Os
affected by queue-full conditions.
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://patch.msgid.link/20260320090326.47544-3-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Operational replies without a valid scsi_cmnd indicate an invalid I/O
completion and a potentially inconsistent controller state. Track this
condition and allow the watchdog to trigger a soft reset to safely
recover.
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://patch.msgid.link/20260320090326.47544-2-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The function iscsi_conn_set_callbacks() was renamed to
iscsi_sw_tcp_conn_set_callbacks() by commit 38e1a8f547 ("[SCSI]
iscsi_tcp: hook iscsi_tcp into new libiscsi_tcp module"). Update the
stale reference in iscsi_sw_tcp_conn_restore_callbacks().
Assisted-by: unnamed:deepseek-v3.2 coccinelle
Signed-off-by: Kexin Sun <kexinsun@smail.nju.edu.cn>
Link: https://patch.msgid.link/20260321105904.7726-1-kexinsun@smail.nju.edu.cn
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The function lpfc_freenode() was renamed to lpfc_cleanup_node() by
commit 685f0bf7af ("[SCSI] lpfc 8.1.12 : Collapse discovery lists to a
single node list"), and commit a70e63eee1 ("scsi: lpfc: Fix NPIV
Fabric Node reference counting") later removed the lpfc_unreg_rpi() call
from lpfc_cleanup_node().
Remove the now-inaccurate "called from lpfc_freenode()" sentence and
reflow the remaining comment text for lpfc_unreg_rpi().
Assisted-by: unnamed:deepseek-v3.2 coccinelle
Signed-off-by: Kexin Sun <kexinsun@smail.nju.edu.cn>
Link: https://patch.msgid.link/20260321105909.7804-1-kexinsun@smail.nju.edu.cn
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The event_list processes non-hotplug events (such as LUN capacity
changes), so remove the conditions that guard the initial kicks in
_probe() and _restore(), as well as the work cancellation in _remove().
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Joshua Daley <jdaley@linux.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://patch.msgid.link/20260325180857.3675854-3-jdaley@linux.ibm.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The last step of virtscsi_handle_event() is to call
virtscsi_kick_event(), which calls INIT_WORK on its own work
item. INIT_WORK resets the work item's data bits to 0.
If this occurs while the work item is being flushed by
cancel_work_sync(), then kernel/workqueue.c/work_offqd_enable triggers a
kernel warning, as it expects the "disable" bit to be 1:
[ 21.450115] workqueue: work disable count underflowed
[ 21.450117] WARNING: CPU: 1 PID: 56 at kernel/workqueue.c:4328 enable_work+0x10a/0x120
...
[ 21.450171] Call Trace:
[ 21.450173] [<000003db2e5bdc3e>] enable_work+0x10e/0x120
[ 21.450176] ([<000003db2e5bdc3a>] enable_work+0x10a/0x120)
[ 21.450178] [<000003db2e5bdd86>] cancel_work_sync+0x86/0xa0
[ 21.450181] [<000003daae97d9e4>] virtscsi_remove+0xb4/0xd0 [virtio_scsi]
[ 21.450184] [<000003db2ef3b5ca>] virtio_dev_remove+0x6a/0xd0
[ 21.450186] [<000003db2ef9106c>] device_release_driver_internal+0x1ac/0x260
[ 21.450190] [<000003db2ef8edc8>] bus_remove_device+0xf8/0x190
[ 21.450192] [<000003db2ef88d72>] device_del+0x142/0x340
[ 21.450194] [<000003db2ef88fa0>] device_unregister+0x30/0xa0
[ 21.450196] [<000003db2ef3b2fa>] unregister_virtio_device+0x2a/0x40
This warning may occur if a controller is detached immediately following
a disk detach.
Move the INIT_WORK call to prevent this. Don't re-init event list work
items in virtscsi_kick_event(), init them only once in virtscsi_probe()
instead.
Signed-off-by: Joshua Daley <jdaley@linux.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://patch.msgid.link/20260325180857.3675854-2-jdaley@linux.ibm.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
clang-22 started warning about functions that take printf format
strings:
drivers/scsi/esas2r/esas2r_log.c:160:50: error: diagnostic behavior may be improved by adding the 'format(printf, 3, 0)' attribute to the declaration of 'esas2r_log_master' [-Werror,-Wmissing-format-attribute]
121 | retval = vsnprintf(buffer, buflen, format, args);
| ^
drivers/scsi/esas2r/esas2r_log.c:121:12: note: 'esas2r_log_master' declared here
121 | static int esas2r_log_master(const long level,
| ^
The warning already got silenced for gcc but not clang in the past.
Rather than modify that hack to turn it off for both, just add the
attribute as suggested and remove the pragma again.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260323100027.1975646-1-arnd@kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After commit 37c4e72b06 ("scsi: Fix sas_user_scan() to handle wildcard
and multi-channel scans"), if the device supports multiple channels (0 to
shost->max_channel), user_scan() invokes updated sas_user_scan() to perform
the scan behavior for a specific transfer. However, when the user
specifies shost->max_channel, it will return -EINVAL, which is not
expected.
Fix and support specifying the scan shost->max_channel for scanning.
Fixes: 37c4e72b06 ("scsi: Fix sas_user_scan() to handle wildcard and multi-channel scans")
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260317063147.2182562-1-liyihang9@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
lpfc_cgn_calc_crc32(data, size, crc) is really just an open-coded version
of ~crc32c(bitrev32(crc), data, size). However, all callers pass crc ==
~0, so it can be simplified even further to just ~crc32c(~0, data, size).
Remove the crc argument and implement it that way.
While we're at it, also use proper types in the function prototype.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Link: https://patch.msgid.link/20260316223631.72361-1-ebiggers@kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A malicious or compromised VIO server can return a num_written value in the
discover targets MAD response that exceeds max_targets. This value is
stored directly in vhost->num_targets without validation, and is then used
as the loop bound in ibmvfc_alloc_targets() to index into disc_buf[], which
is only allocated for max_targets entries. Indices at or beyond max_targets
access kernel memory outside the DMA-coherent allocation. The
out-of-bounds data is subsequently embedded in Implicit Logout and PLOGI
MADs that are sent back to the VIO server, leaking kernel memory.
Fix by clamping num_written to max_targets before storing it.
Fixes: 072b91f9c6 ("[SCSI] ibmvfc: IBM Power Virtual Fibre Channel Adapter Client Driver")
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tyllis Xu <LivelyCarpet87@gmail.com>
Reviewed-by: Dave Marquardt <davemarq@linux.ibm.com>
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://patch.msgid.link/20260314170151.548614-1-LivelyCarpet87@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
ses_recv_diag() can return a positive value, which also means that an
error happened, so do not only test for negative values.
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable <stable@kernel.org>
Assisted-by: gkh_clanker_2000
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://patch.msgid.link/2026022301-bony-overstock-a07f@gregkh
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Implement the SCSI-specific io_uring command handler for BSG using
struct bsg_uring_cmd.
The handler builds a SCSI request from the io_uring command, maps user
buffers (including fixed buffers), and completes asynchronously via a
request end_io callback and task_work. Completion returns a 32-bit
status and packed residual/sense information via CQE res and res2, and
supports IO_URING_F_NONBLOCK.
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260317072226.2598233-4-yangxiuwei@kylinos.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add an io_uring command handler to the generic BSG layer. The new
.uring_cmd file operation validates io_uring features and delegates
handling to a per-queue bsg_uring_cmd_fn callback.
Extend bsg_register_queue() so transport drivers can register both
sg_io and io_uring command handlers.
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260317072226.2598233-3-yangxiuwei@kylinos.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
