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
...
Usual collection of driver changes, more core infrastructure updates that
typical this cycle:
- Minor cleanups and kernel-doc fixes in bnxt_re, hns, rdmavt, efa, ocrdma,
erdma, rtrs, hfi1, ionic, and pvrdma
- New udata validation framework and driver updates
- Modernize CQ creation interface in mlx4 and mlx5, manage CQ umem in core
- Promote UMEM to a core component, split out DMA block iterator logic
- Introduce FRMR pools with aging, statistics, pinned handles, and netlink
control and use it in mlx5
- Add PCIe TLP emulation support in mlx5
- Extend umem to work with revocable pinned dmabuf's and use it in irdma
- More net namespace improvements for rxe
- GEN4 hardware support in irdma
- First steps to MW and UC support in mana_ib
- Support for CQ umem and doorbells in bnxt_re
- Drop opa_vnic driver from hfi1
- Fixes:
IB/core zero dmac neighbor resolution race
GID table memory free
rxe pad/ICRC validation and r_key async errors
mlx4 external umem for CQ
umem DMA attributes on unmap
mana_ib RX steering on RSS QP destroy
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"The usual collection of driver changes, more core infrastructure
updates that typical this cycle:
- Minor cleanups and kernel-doc fixes in bnxt_re, hns, rdmavt, efa,
ocrdma, erdma, rtrs, hfi1, ionic, and pvrdma
- New udata validation framework and driver updates
- Modernize CQ creation interface in mlx4 and mlx5, manage CQ umem in
core
- Promote UMEM to a core component, split out DMA block iterator
logic
- Introduce FRMR pools with aging, statistics, pinned handles, and
netlink control and use it in mlx5
- Add PCIe TLP emulation support in mlx5
- Extend umem to work with revocable pinned dmabuf's and use it in
irdma
- More net namespace improvements for rxe
- GEN4 hardware support in irdma
- First steps to MW and UC support in mana_ib
- Support for CQ umem and doorbells in bnxt_re
- Drop opa_vnic driver from hfi1
Fixes:
- IB/core zero dmac neighbor resolution race
- GID table memory free
- rxe pad/ICRC validation and r_key async errors
- mlx4 external umem for CQ
- umem DMA attributes on unmap
- mana_ib RX steering on RSS QP destroy"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (116 commits)
RDMA/core: Fix user CQ creation for drivers without create_cq
RDMA/ionic: bound node_desc sysfs read with %.64s
IB/core: Fix zero dmac race in neighbor resolution
RDMA/mana_ib: Support memory windows
RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
RDMA/core: Prefer NLA_NUL_STRING
RDMA/core: Fix memory free for GID table
RDMA/hns: Remove the duplicate calls to ib_copy_validate_udata_in()
RDMA: Remove redundant = {} for udata req structs
RDMA/irdma: Add missing comp_mask check in alloc_ucontext
RDMA/hns: Add missing comp_mask check in create_qp
RDMA/mlx5: Pull comp_mask validation into ib_copy_validate_udata_in_cm()
RDMA: Use ib_copy_validate_udata_in_cm() for zero comp_mask
RDMA/hns: Use ib_copy_validate_udata_in()
RDMA/mlx4: Use ib_copy_validate_udata_in() for QP
RDMA/mlx4: Use ib_copy_validate_udata_in()
RDMA/mlx5: Use ib_copy_validate_udata_in() for MW
RDMA/mlx5: Use ib_copy_validate_udata_in() for SRQ
RDMA/pvrdma: Use ib_copy_validate_udata_in() for srq
RDMA: Use ib_copy_validate_udata_in() for implicit full structs
...
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
...
kernfs has historically used const void * to pass around namespace tags
used for directory-level namespace filtering. The only current user of
this is sysfs network namespace tagging where struct net pointers are
cast to void *.
Replace all const void * namespace parameters with const struct
ns_common * throughout the kernfs, sysfs, and kobject namespace layers.
This includes the kobj_ns_type_operations callbacks, kobject_namespace(),
and all sysfs/kernfs APIs that accept or return namespace tags.
Passing struct ns_common is needed because various codepaths require
access to the underlying namespace. A struct ns_common can always be
converted back to the concrete namespace type (e.g., struct net) via
container_of() or to_ns_common() in the reverse direction.
This is a preparatory change for switching to ns_id-based directory
iteration to prevent a KASLR pointer leak through the current use of
raw namespace pointers as hash seeds and comparison keys.
Signed-off-by: Christian Brauner <brauner@kernel.org>
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>
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")
The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.
In order to keep alloc_workqueue() behavior identical, explicitly request
WQ_PERCPU.
Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20260305154117.326472-1-marco.crivellari@suse.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This has us use the driver's completion preference by default. There is
no behavior changes with this patch and we queue completion to LIO's
completion workqueue by default.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://patch.msgid.link/20260222232946.7637-3-michael.christie@oracle.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This converts some of the visually simpler cases that have been split
over multiple lines. I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.
Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script. I probably had made it a bit _too_ trivial.
So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.
The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the exact same thing as the 'alloc_obj()' version, only much
smaller because there are a lot fewer users of the *alloc_flex()
interface.
As with alloc_obj() version, this was done entirely with mindless brute
force, using the same script, except using 'flex' in the pattern rather
than 'objs*'.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
Usual smallish cycle:
- Various code improvements in irdma, rtrs, qedr, ocrdma, irdma, rxe
- Small driver improvements and minor bug fixes to hns, mlx5, rxe, mana,
mlx5, irdma
- Robusness improvements in completion processing for EFA
- New query_port_speed() verb to move past limited IBA defined speed steps
- Support for SG_GAPS in rts and many other small improvements
- Rare list corruption fix in iwcm
- Better support different page sizes in rxe
- Device memory support for mana
- Direct bio vec to kernel MR for use by NFS-RDMA
- QP rate limiting for bnxt_re
- Remote triggerable NULL pointer crash in siw
- DMA-buf exporter support for RDMA mmaps like doorbells
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"Usual smallish cycle. The NFS biovec work to push it down into RDMA
instead of indirecting through a scatterlist is pretty nice to see,
been talked about for a long time now.
- Various code improvements in irdma, rtrs, qedr, ocrdma, irdma, rxe
- Small driver improvements and minor bug fixes to hns, mlx5, rxe,
mana, mlx5, irdma
- Robusness improvements in completion processing for EFA
- New query_port_speed() verb to move past limited IBA defined speed
steps
- Support for SG_GAPS in rts and many other small improvements
- Rare list corruption fix in iwcm
- Better support different page sizes in rxe
- Device memory support for mana
- Direct bio vec to kernel MR for use by NFS-RDMA
- QP rate limiting for bnxt_re
- Remote triggerable NULL pointer crash in siw
- DMA-buf exporter support for RDMA mmaps like doorbells"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (66 commits)
RDMA/mlx5: Implement DMABUF export ops
RDMA/uverbs: Add DMABUF object type and operations
RDMA/uverbs: Support external FD uobjects
RDMA/siw: Fix potential NULL pointer dereference in header processing
RDMA/umad: Reject negative data_len in ib_umad_write
IB/core: Extend rate limit support for RC QPs
RDMA/mlx5: Support rate limit only for Raw Packet QP
RDMA/bnxt_re: Report QP rate limit in debugfs
RDMA/bnxt_re: Report packet pacing capabilities when querying device
RDMA/bnxt_re: Add support for QP rate limiting
MAINTAINERS: Drop RDMA files from Hyper-V section
RDMA/uverbs: Add __GFP_NOWARN to ib_uverbs_unmarshall_recv() kmalloc
svcrdma: use bvec-based RDMA read/write API
RDMA/core: add rdma_rw_max_sge() helper for SQ sizing
RDMA/core: add MR support for bvec-based RDMA operations
RDMA/core: use IOVA-based DMA mapping for bvec RDMA operations
RDMA/core: add bio_vec based RDMA read/write API
RDMA/irdma: Use kvzalloc for paged memory DMA address array
RDMA/rxe: Fix race condition in QP timer handlers
RDMA/mana_ib: Add device‑memory support
...
Usual driver updates (qla2xxx, mpi3mr, mpt3sas, ufs) plus assorted
cleanups and fixes. The biggest core change is the massive code
motion in the sd driver to remove forward declarations and the most
significant change is to enumify the queuecommand return.
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 (qla2xxx, mpi3mr, mpt3sas, ufs) plus assorted
cleanups and fixes.
The biggest core change is the massive code motion in the sd driver to
remove forward declarations and the most significant change is to
enumify the queuecommand return"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (78 commits)
scsi: csiostor: Fix dereference of null pointer rn
scsi: buslogic: Reduce stack usage
scsi: ufs: host: mediatek: Require CONFIG_PM
scsi: ufs: mediatek: Fix page faults in ufs_mtk_clk_scale() trace event
scsi: smartpqi: Fix memory leak in pqi_report_phys_luns()
scsi: mpi3mr: Make driver probing asynchronous
scsi: ufs: core: Flush exception handling work when RPM level is zero
scsi: efct: Use IRQF_ONESHOT and default primary handler
scsi: ufs: core: Use a host-wide tagset in SDB mode
scsi: qla2xxx: target: Add WQ_PERCPU to alloc_workqueue() users
scsi: qla2xxx: Add WQ_PERCPU to alloc_workqueue() users
scsi: qla4xxx: Add WQ_PERCPU to alloc_workqueue() users
scsi: mpi3mr: Driver version update to 8.17.0.3.50
scsi: mpi3mr: Fixed the W=1 compilation warning
scsi: mpi3mr: Record and report controller firmware faults
scsi: mpi3mr: Update MPI Headers to revision 39
scsi: mpi3mr: Use negotiated link rate from DevicePage0
scsi: mpi3mr: Avoid redundant diag-fault resets
scsi: mpi3mr: Rename log data save helper to reflect threaded/BH context
scsi: mpi3mr: Add module parameter to control threaded IRQ polling
...
Total patches: 107
Reviews/patch: 1.07
Reviewed rate: 67%
- The 2 patch series "ocfs2: give ocfs2 the ability to reclaim
suballocator free bg" from Heming Zhao saves disk space by teaching
ocfs2 to reclaim suballocator block group space.
- The 4 patch series "Add ARRAY_END(), and use it to fix off-by-one
bugs" from Alejandro Colomar adds the ARRAY_END() macro and uses it in
various places.
- The 2 patch series "vmcoreinfo: support VMCOREINFO_BYTES larger than
PAGE_SIZE" from Pnina Feder makes the vmcore code future-safe, if
VMCOREINFO_BYTES ever exceeds the page size.
- The 7 patch series "kallsyms: Prevent invalid access when showing
module buildid" from Petr Mladek cleans up kallsyms code related to
module buildid and fixes an invalid access crash when printing
backtraces.
- The 3 patch series "Address page fault in
ima_restore_measurement_list()" from Harshit Mogalapalli fixes a
kexec-related crash that can occur when booting the second-stage kernel
on x86.
- The 6 patch series "kho: ABI headers and Documentation updates" from
Mike Rapoport updates the kexec handover ABI documentation.
- The 4 patch series "Align atomic storage" from Finn Thain adds the
__aligned attribute to atomic_t and atomic64_t definitions to get
natural alignment of both types on csky, m68k, microblaze, nios2,
openrisc and sh.
- The 2 patch series "kho: clean up page initialization logic" from
Pratyush Yadav simplifies the page initialization logic in
kho_restore_page().
- The 6 patch series "Unload linux/kernel.h" from Yury Norov moves
several things out of kernel.h and into more appropriate places.
- The 7 patch series "don't abuse task_struct.group_leader" from Oleg
Nesterov removes the usage of ->group_leader when it is "obviously
unnecessary".
- The 5 patch series "list private v2 & luo flb" from Pasha Tatashin
adds some infrastructure improvements to the live update orchestrator.
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Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
disk space by teaching ocfs2 to reclaim suballocator block group
space (Heming Zhao)
- "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
ARRAY_END() macro and uses it in various places (Alejandro Colomar)
- "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
page size (Pnina Feder)
- "kallsyms: Prevent invalid access when showing module buildid" cleans
up kallsyms code related to module buildid and fixes an invalid
access crash when printing backtraces (Petr Mladek)
- "Address page fault in ima_restore_measurement_list()" fixes a
kexec-related crash that can occur when booting the second-stage
kernel on x86 (Harshit Mogalapalli)
- "kho: ABI headers and Documentation updates" updates the kexec
handover ABI documentation (Mike Rapoport)
- "Align atomic storage" adds the __aligned attribute to atomic_t and
atomic64_t definitions to get natural alignment of both types on
csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)
- "kho: clean up page initialization logic" simplifies the page
initialization logic in kho_restore_page() (Pratyush Yadav)
- "Unload linux/kernel.h" moves several things out of kernel.h and into
more appropriate places (Yury Norov)
- "don't abuse task_struct.group_leader" removes the usage of
->group_leader when it is "obviously unnecessary" (Oleg Nesterov)
- "list private v2 & luo flb" adds some infrastructure improvements to
the live update orchestrator (Pasha Tatashin)
* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
procfs: fix missing RCU protection when reading real_parent in do_task_stat()
watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
kho: fix doc for kho_restore_pages()
tests/liveupdate: add in-kernel liveupdate test
liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
liveupdate: luo_file: Use private list
list: add kunit test for private list primitives
list: add primitives for private list manipulations
delayacct: fix uapi timespec64 definition
panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
netclassid: use thread_group_leader(p) in update_classid_task()
RDMA/umem: don't abuse current->group_leader
drm/pan*: don't abuse current->group_leader
drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
drm/amdgpu: don't abuse current->group_leader
android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
android/binder: don't abuse current->group_leader
kho: skip memoryless NUMA nodes when reserving scratch areas
...
In clang version 21.1 and later the -Wimplicit-enum-enum-cast warning
option has been introduced. This warning is enabled by default and can
be used to catch .queuecommand() implementations that return another
value than 0 or one of the SCSI_MLQUEUE_* constants. Hence this patch
that changes the return type of the .queuecommand() implementations from
'int' into 'enum scsi_qc_status'. No functionality has been changed.
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260115210357.2501991-6-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove <linux/hex.h> from <linux/kernel.h> and update all users/callers of
hex.h interfaces to directly #include <linux/hex.h> as part of the process
of putting kernel.h on a diet.
Removing hex.h from kernel.h means that 36K C source files don't have to
pay the price of parsing hex.h for the roughly 120 C source files that
need it.
This change has been build-tested with allmodconfig on most ARCHes. Also,
all users/callers of <linux/hex.h> in the entire source tree have been
updated if needed (if not already #included).
Link: https://lkml.kernel.org/r/20251215005206.2362276-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
With all drivers converted to use ndo_hwstamp callbacks the legacy way
can be removed, marking ioctl interface as deprecated.
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260116062121.1230184-1-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
rtrs_srv_change_state() returns bool (true on success) therefore
there is no reason to print error when it fails as it always will
be 0.
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-11-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
When the connection establishment request is rejected from the server
side, then the actual error number sent back should be used.
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-10-haris.iqbal@ionos.com
Reviewed-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Add HCA name and port of this HCA.
This would help with analysing and debugging the logs.
The logs would looks something like this,
rtrs_server L2516: Handling event: port error (10).
HCA name: mlx4_0, port num: 2
rtrs_client L3326: Handling event: port error (10).
HCA name: mlx4_0, port num: 1
Signed-off-by: Kim Zhu <zhu.yanjun@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-9-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Excessive error logging is making it difficult to identify the root
cause of issues. Implement rate limiting to improve log clarity.
Signed-off-by: Kim Zhu <zhu.yanjun@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-8-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
During several network incidents, a number of RTRS paths for a session
went through disconnect and reconnect phase. However, some of those did
not auto-reconnect successfully. Instead they failed with the following
logs,
On client,
kernel: rtrs_client L1991: <sess-name>: Connect rejected: status 28
(consumer defined), rtrs errno -104
kernel: rtrs_client L2698: <sess-name>: init_conns() failed: err=-104
path=gid:<gid1>@gid:<gid2> [mlx4_0:1]
On server, (log a)
kernel: ibtrs_server L1868: <>: Connection already exists: 0
When the misbehaving path was removed, and add_path was called to re-add
the path, the log on client side changed to, (log b)
kernel: rtrs_client L1991: <sess-name>: Connect rejected: status 28
(consumer defined), rtrs errno -17
There was no log on the server side for this, which is expected since
there is no logging in that path,
if (unlikely(__is_path_w_addr_exists(srv, &cm_id->route.addr))) {
err = -EEXIST;
goto err;
Because of the following check on server side,
if (unlikely(sess->state != IBTRS_SRV_CONNECTING)) {
ibtrs_err(s, "Session in wrong state: %s\n",
.. we know that the path in (log a) was in CONNECTING state.
The above state of the path persists for as long as we leave the session
be. This means that the path is in some zombie state, probably waiting
for the info_req packet to arrive, which never does.
The changes in this commits does 2 things.
1) Add logs at places where we see the errors happening. The logs would
shed more light at the state and lifetime of such zombie paths.
2) Close such zombie sessions, only if they are in CONNECTING state, and
after an inactivity period of 30 seconds.
i) The state check prevents closure of paths which are CONNECTED.
Also, from the above logs and code, we already know that the path could
only be on CONNECTING state, so we play safe and narrow our impact surface
area by closing only CONNECTING paths.
ii) The inactivity period is to allow requests for other cid to finish
processing, or for any stray packets to arrive/fail.
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-7-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Remove unused members from rtrs_clt_io_req.
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-6-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
The member variable status in the struct rdma_cm_event is used for both
linux errors and the errors definded in rdma stack.
Signed-off-by: Kim Zhu <zhu.yanjun@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-5-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Support IB_MR_TYPE_SG_GAPS, which has less limitations
than standard IB_MR_TYPE_MEM_REG, a few ULP support this.
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Kim Zhu <zhu.yanjun@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-4-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Print error description instead of the error number.
Signed-off-by: Kim Zhu <zhu.yanjun@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-3-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This fixes the following error on the server side:
RTRS server session allocation failed: -EINVAL
caused by the caller of the `ib_dma_map_sg()`, which does not expect
less mapped entries, than requested, which is in the order of things
and can be easily reproduced on the machine with enabled IOMMU.
The fix is to treat any positive number of mapped sg entries as a
successful mapping and cache DMA addresses by traversing modified
SG table.
Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Signed-off-by: Roman Penyaev <r.peniaev@gmail.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20260107161517.56357-2-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
If device max_mr_size bits in the range [mr_page_shift+31:mr_page_shift]
are zero, the `min3` function will set clt_path::max_pages_per_mr to
zero.
`alloc_path_reqs` will pass zero, which is invalid, as the third parameter
to `ib_alloc_mr`.
Fixes: 6a98d71dae ("RDMA/rtrs: client: main functionality")
Signed-off-by: Honggang LI <honggangli@163.com>
Link: https://patch.msgid.link/20251229025617.13241-1-honggangli@163.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
As rkey had been initialized to zero, the WARN_ON_ONCE should never been
triggered. Remove it.
Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Signed-off-by: Honggang LI <honggangli@163.com>
Link: https://patch.msgid.link/20251224023819.138846-1-honggangli@163.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Fix all (30+) kernel-doc warnings in rtrs.h and rtrs-pri.h. The changes
are:
- add ending ':' to enum member names
- change enum description separators from '-' to ':'
- add "struct" keyword to kernel-doc for structs where missing
- fix enum names in enum rtrs_clt_con_type
- add a '-' separator and drop the "()" in enum rtrs_clt_con_type
- convert struct rtrs_addr to kernel-doc format
- add missing struct member descriptions for struct rtrs_attrs
Link: https://patch.msgid.link/r/20251129022146.1498273-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
- Minor driver bug fixes and updates to cxgb4, rxe, rdmavt, bnxt_re, mlx5
- Many bug fix patches for irdma
- WQ_PERCPU annotations and system_dfl_wq changes
- Improved mlx5 support for "other eswitches" and multiple PFs
- 1600Gbps link speed reporting support. Four Digits Now!
- New driver bng_en for latest generation Broadcom NICs
- Bonding support for hns
- Adjust mlx5's hmm based ODP to work with the very large address space
created by the new 5 level paging default on x86
- Lockdep fixups in rxe and siw
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This has another new RDMA driver 'bng_en' for latest generation
Broadcom NICs. There might be one more new driver still to come.
Otherwise it is a fairly quite cycle. Summary:
- Minor driver bug fixes and updates to cxgb4, rxe, rdmavt, bnxt_re,
mlx5
- Many bug fix patches for irdma
- WQ_PERCPU annotations and system_dfl_wq changes
- Improved mlx5 support for "other eswitches" and multiple PFs
- 1600Gbps link speed reporting support. Four Digits Now!
- New driver bng_en for latest generation Broadcom NICs
- Bonding support for hns
- Adjust mlx5's hmm based ODP to work with the very large address
space created by the new 5 level paging default on x86
- Lockdep fixups in rxe and siw"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (65 commits)
RDMA/rxe: reclassify sockets in order to avoid false positives from lockdep
RDMA/siw: reclassify sockets in order to avoid false positives from lockdep
RDMA/bng_re: Remove prefetch instruction
RDMA/core: Reduce cond_resched() frequency in __ib_umem_release
RDMA/irdma: Fix SRQ shadow area address initialization
RDMA/irdma: Remove doorbell elision logic
RDMA/irdma: Do not set IBK_LOCAL_DMA_LKEY for GEN3+
RDMA/irdma: Do not directly rely on IB_PD_UNSAFE_GLOBAL_RKEY
RDMA/irdma: Add missing mutex destroy
RDMA/irdma: Fix SIGBUS in AEQ destroy
RDMA/irdma: Add a missing kfree of struct irdma_pci_f for GEN2
RDMA/irdma: Fix data race in irdma_free_pble
RDMA/irdma: Fix data race in irdma_sc_ccq_arm
RDMA/mlx5: Add support for 1600_8x lane speed
RDMA/core: Add new IB rate for XDR (8x) support
IB/mlx5: Reduce IMR KSM size when 5-level paging is enabled
RDMA/bnxt_re: Pass correct flag for dma mr creation
RDMA/bnxt_re: Fix the inline size for GenP7 devices
RDMA/hns: Support reset recovery for bond
RDMA/hns: Support link state reporting for bond
...
After device_initialize() is called, use put_device() to release the
device according to kernel device management rules. While direct
kfree() work in this case, using put_device() is more correct.
Found by code review.
Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://patch.msgid.link/20251110005158.13394-1-make24@iscas.ac.cn
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.
alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.
This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")
This change adds a new WQ_PERCPU flag to explicitly request
alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.
Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20251107133626.190952-1-marco.crivellari@suse.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.
alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.
This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")
This change adds a new WQ_PERCPU flag to explicitly request
alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.
Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20251107133306.187939-1-marco.crivellari@suse.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Add support for the ndo_hwtstamp_get and ndo_hwtstamp_set operations in
IPoIB. This allows lower devices to handle hardware timestamp
configuration through the new ndos instead of the legacy ioctls.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761819910-1011051-6-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, all master upper netdevices (e.g., bond, VRF) are treated
equally.
When a VRF netdevice is used over an IPoIB netdevice, the expected
netdev resolution is on the lower IPoIB device which has the IP address
assigned to it and not the VRF device.
The rdma_cm module (CMA) tries to match incoming requests to a
particular netdevice. When successful, it also validates that the return
path points to the same device by performing a routing table lookup.
Currently, the former would resolve to the VRF netdevice, while the
latter to the correct lower IPoIB netdevice, leading to failure in
rdma_cm.
Improve this by ignoring the VRF master netdevice, if it exists, and
instead return the lower IPoIB device.
Signed-off-by: Vlad Dumitrescu <vdumitrescu@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/20250916111103.84069-5-edwards@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
- Various minor code cleanups and fixes for hns, iser, cxgb4, hfi1, rxe,
erdma, mana_ib
- Prefetch supprot for rxe ODP
- Remove memory window support from hns as new device FW is no longer
support it
- Remove qib, it is very old and obsolete now, Cornelis wishes to
restructure the hfi1/qib shared layer
- Fix a race in destroying CQs where we can still end up with work running
because the work is cancled before the driver stops triggering it
- Improve interaction with namespaces.
* Follow the devlink namespace for newly spawned RDMA devices
* Create iopoib net devces in the parent IB device's namespace
* Allow CAP_NET_RAW checks to pass in user namespaces
- A new flow control scheme for IB MADs to try and avoid queue overflows
in the network
- Fix 2G message sizes in bnxt_re
- Optimize mkey layout for mlx5 DMABUF
- New "DMA Handle" concept to allow controlling PCI TPH and steering tags
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
- Various minor code cleanups and fixes for hns, iser, cxgb4, hfi1,
rxe, erdma, mana_ib
- Prefetch supprot for rxe ODP
- Remove memory window support from hns as new device FW is no longer
support it
- Remove qib, it is very old and obsolete now, Cornelis wishes to
restructure the hfi1/qib shared layer
- Fix a race in destroying CQs where we can still end up with work
running because the work is cancled before the driver stops
triggering it
- Improve interaction with namespaces:
* Follow the devlink namespace for newly spawned RDMA devices
* Create iopoib net devces in the parent IB device's namespace
* Allow CAP_NET_RAW checks to pass in user namespaces
- A new flow control scheme for IB MADs to try and avoid queue
overflows in the network
- Fix 2G message sizes in bnxt_re
- Optimize mkey layout for mlx5 DMABUF
- New "DMA Handle" concept to allow controlling PCI TPH and steering
tags
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (71 commits)
RDMA/siw: Change maintainer email address
RDMA/mana_ib: add support of multiple ports
RDMA/mlx5: Refactor optional counters steering code
RDMA/mlx5: Add DMAH support for reg_user_mr/reg_user_dmabuf_mr
IB: Extend UVERBS_METHOD_REG_MR to get DMAH
RDMA/mlx5: Add DMAH object support
RDMA/core: Introduce a DMAH object and its alloc/free APIs
IB/core: Add UVERBS_METHOD_REG_MR on the MR object
net/mlx5: Add support for device steering tag
net/mlx5: Expose IFC bits for TPH
PCI/TPH: Expose pcie_tph_get_st_table_size()
RDMA/mlx5: Fix incorrect MKEY masking
RDMA/mlx5: Fix returned type from _mlx5r_umr_zap_mkey()
RDMA/mlx5: remove redundant check on err on return expression
RDMA/mana_ib: add additional port counters
RDMA/mana_ib: Fix DSCP value in modify QP
RDMA/efa: Add CQ with external memory support
RDMA/core: Add umem "is_contiguous" and "start_dma_addr" helpers
RDMA/uverbs: Add a common way to create CQ with umem
RDMA/mlx5: Optimize DMABUF mkey page size
...
Use the net namespace of the underlying rdma device.
After honoring the rdma device's namespace, the ipoib
netdev now also runs in the same net namespace of the
rdma device.
Add an API to read the net namespace of the rdma device
so that ULP such as IPoIB can use it to initialize its
netdev.
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
virt_boundary_mask implies an unlimited max_segment_size. Setting both
can lead to data corruption because __blk_rq_map_sg() can split requests
so that the virt_boundary_mask is not respected if max_segment_size is
not UINT_MAX.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250624125233.219635-2-hch@lst.de
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The 'error' variable is no longer needed,as iscsi_iser_mtask_xmit can
return the result of iser_send_control(conn,task) directly.
Signed-off-by: Li Jun <lijun01@kylinos.cn>
Link: https://patch.msgid.link/20250604102049.130039-1-lijun01@kylinos.cn
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
After the last patch removing vlan_rwsem, it is an incremental step to
allow ipoib to work with netdevs that require the instance lock.
In several places, netdev_lock() is changed to netdev_lock_ops_to_full()
which takes care of not acquiring the lock again when the netdev is
already locked.
In ipoib_ib_tx_timeout_work() and __ipoib_ib_dev_flush() for HEAVY
flushes, the netdev lock is acquired/released. This is needed because
these functions end up calling .ndo_stop()/.ndo_open() on subinterfaces,
and the device may expect the netdev instance lock to be held.
ipoib_set_mode() now explicitly acquires ops lock while manipulating the
features, mtu and tx queues.
Finally, ipoib_napi_enable()/ipoib_napi_disable() now use the *_locked
variants of the napi_enable()/napi_disable() calls and optionally
acquire the netdev lock themselves depending on the dev they operate on.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1747829342-1018757-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
vlan_rwsem was added more than a decade ago to work around a deadlock
involving the original mutex being acquired twice, once from the wq.
Subsequent changes then tweaked it to partially protect access to
ipoib_dev_priv->child_intfs together with the RTNL. Flushing the wq
synchronously was also since then refactored to happen separately.
This semaphore unfortunately prevents updating ipoib to work with
devices that require the netdev lock, because of lock ordering issues
between RTNL, vlan_rwsem and the netdev instance locks of parent and
child devices.
To uncomplicate things, this commit replaces vlan_rwsem with the netdev
instance lock of the parent device. Both parent child_intfs list and the
children's list membership in it require holding the parent netdev
instance lock.
All call paths were carefully reviewed and no-longer-needed ASSERT_RTNL
calls were dropped. Some non-trivial changes:
- ipoib_match_gid_pkey_addr() now only acquires the instance lock and
iterates through child_intfs for the first level of recursion (the
parent), as it's not possible to have multiple levels of nested
subinterfaces.
- ipoib_open() and ipoib_stop() schedule tasks on the global workqueue
to open/stop child interfaces to avoid potentially acquiring nested
netdev instance locks. To avoid the device going away between the task
scheduling and execution, netdev_hold/netdev_put are used.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1747829342-1018757-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Previously, flushing a netdevice involved first flushing all child
devices from the flush task itself. That requires holding the lock that
protects the list for the entire duration of the flush.
This poses a problem when converting from vlan_rwsem to the netdev
instance lock (next patch), because holding the parent lock while
trying to acquire a child lock makes lockdep unhappy, rightfully.
Fix this by splitting a big flush task into individual flush tasks
(all are already created in their respective ipoib_dev_priv structs)
and defining a helper function to enqueue all of them while holding the
list lock.
In ipoib_set_mac, the function is not used and the task is enqueued
directly, because in the subsequent patches locking is changed and this
function may be called with the netdev instance lock held.
This is effectively a noop, the wq is single-threaded and ordered and
will execute the same flush operations in the same order as before.
Furthermore, there should be no new races because
ipoib_parent_unregister_pre() calls flush_workqueue() after stopping new
work generation to wait for pending work to complete. flush_workqueue()
waits for all currently enqueued work to finish before returning.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1747829342-1018757-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Usual minor updates and fixes for bnxt_re, hfi1, rxe, mana, iser, mlx5,
vmw_pvrdma, hns
- Make rxe work on tun devices
- mana gains more standard verbs as it moves toward supporting in-kernel
verbs
- DMABUF support for mana
- Fix page size calculations when memory registration exceeds 4G
- On Demand Paging support for rxe
- mlx5 support for RDMA TRANSPORT flow tables and a new ucap mechanism to
access control use of them
- Optional RDMA_TX/RX counters per QP in mlx5
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
- Usual minor updates and fixes for bnxt_re, hfi1, rxe, mana, iser,
mlx5, vmw_pvrdma, hns
- Make rxe work on tun devices
- mana gains more standard verbs as it moves toward supporting
in-kernel verbs
- DMABUF support for mana
- Fix page size calculations when memory registration exceeds 4G
- On Demand Paging support for rxe
- mlx5 support for RDMA TRANSPORT flow tables and a new ucap mechanism
to access control use of them
- Optional RDMA_TX/RX counters per QP in mlx5
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (73 commits)
IB/mad: Check available slots before posting receive WRs
RDMA/mana_ib: Fix integer overflow during queue creation
RDMA/mlx5: Fix calculation of total invalidated pages
RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow
RDMA/mlx5: Fix page_size variable overflow
RDMA/mlx5: Drop access_flags from _mlx5_mr_cache_alloc()
RDMA/mlx5: Fix cache entry update on dereg error
RDMA/mlx5: Fix MR cache initialization error flow
RDMA/mlx5: Support optional-counters binding for QPs
RDMA/mlx5: Compile fs.c regardless of INFINIBAND_USER_ACCESS config
RDMA/core: Pass port to counter bind/unbind operations
RDMA/core: Add support to optional-counters binding configuration
RDMA/core: Create and destroy rdma_counter using rdma_zalloc_drv_obj()
RDMA/mlx5: Add optional counters for RDMA_TX/RX_packets/bytes
RDMA/core: Fix use-after-free when rename device name
RDMA/bnxt_re: Support perf management counters
RDMA/rxe: Fix incorrect return value of rxe_odp_atomic_op()
RDMA/uverbs: Propagate errors from rdma_lookup_get_uobject()
RDMA/mana_ib: Handle net event for pointing to the current netdev
net: mana: Change the function signature of mana_get_primary_netdev_rcu
...
Add two helper functions - rtnl_newlink_link_net() and
rtnl_newlink_peer_net() for netns fallback logic. Peer netns falls back
to link netns, and link netns falls back to source netns.
Convert the use of params->net in netdevice drivers to one of the helper
functions for clarity.
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250219125039.18024-4-shaw.leon@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There are 4 net namespaces involved when creating links:
- source netns - where the netlink socket resides,
- target netns - where to put the device being created,
- link netns - netns associated with the device (backend),
- peer netns - netns of peer device.
Currently, two nets are passed to newlink() callback - "src_net"
parameter and "dev_net" (implicitly in net_device). They are set as
follows, depending on netlink attributes in the request.
+------------+-------------------+---------+---------+
| peer netns | IFLA_LINK_NETNSID | src_net | dev_net |
+------------+-------------------+---------+---------+
| | absent | source | target |
| absent +-------------------+---------+---------+
| | present | link | link |
+------------+-------------------+---------+---------+
| | absent | peer | target |
| present +-------------------+---------+---------+
| | present | peer | link |
+------------+-------------------+---------+---------+
When IFLA_LINK_NETNSID is present, the device is created in link netns
first and then moved to target netns. This has some side effects,
including extra ifindex allocation, ifname validation and link events.
These could be avoided if we create it in target netns from
the beginning.
On the other hand, the meaning of src_net parameter is ambiguous. It
varies depending on how parameters are passed. It is the effective
link (or peer netns) by design, but some drivers ignore it and use
dev_net instead.
To provide more netns context for drivers, this patch packs existing
newlink() parameters, along with the source netns, link netns and peer
netns, into a struct. The old "src_net" is renamed to "net" to avoid
confusion with real source netns, and will be deprecated later. The use
of src_net are converted to params->net trivially.
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250219125039.18024-3-shaw.leon@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fixes multiple occurrences of the misspelled word "occured" in the comments
of `iscsi_iser.c`, replacing them with the correct spelling "occurred".
This improves readability without affecting functionality.
Signed-off-by: Imanol <imvalient@protonmail.com>
Link: https://patch.msgid.link/20250217183048.9394-1-imvalient@protonmail.com
Acked-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
