linux/Documentation/driver-api
Linus Torvalds 91ec203513 Networking changes for 7.3.
Core & protocols
 ----------------
 
  - A few steps lowering rtnl_lock dependence:
    - per-netns netdev unregistration for select SW drivers
      (e.g. veth, ipvlan, tunnels)
    - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
    - prepare software drivers and TC qdiscs for rtnl_lock-less GET
 
  - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve).
 
  - Support buffers larger than PAGE_SIZE in devmem zero-copy API.
 
  - Improve MPTCP handling of extreme memory pressure handling,
    when out-of-order queue had to be pruned.
 
  - Report the per-group user count via RTM_GETMULTICAST.
 
  - Expose the route deletion reason in RTM_DELROUTE.
 
  - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more useful
    handling of LSM denials when receiving SCM_RIGHTS messages: instead
    of truncating the message at the first blocked fd, keep every fd slot
    and store the LSM errno in the blocked slot.
 
  - IPv6 Segment Routing - support looking up the post-encap SID
    (address) in a different/specified routing table.
 
  - Support PRP RedBox (interlink) creation.
 
  - Support per-nexthop UDP dst port in VXLAN.
 
  - Continue converting getsockopt callbacks in a number of protocols
    to iov_iter.
 
 Ethernet
 --------
 
  - Marge initial CXL support for AMD/Solarflare NICs (shared branch
    with the CXL tree).
 
  - New drivers:
    - ADIN1140 10BASE-T1S MACPHY
    - Initial skeleton of Intel iXD and ZTE Dinghai drivers.
 
  - High-speed NICs:
    - AMD/Pensando:
      - support firmware flashing
    - Cisco (enic):
      - SR-IOV V2 admin channel and MBOX protocol
    - Huawei (hns3):
      - support for ethtool pfc_prevention_tout
    - nVidia/Mellanox:
      - support sharing bandwidth control across interfaces of
        the same device
    - Marvell (octeontx2-pf):
      - link RQ page pools to netdev for Netlink stats
    - Google vNIC:
      - XDP metadata support for DQ RDA
    - Microsoft vNIC:
      - support forcing full-page RX buffers
 
  - Other NICs:
    - Synopsys IP:
      - eic7700: support for eth1
    - Microchip (lan743x):
      - support for RMII interface
    - Wangxun:
      - support for ethtool -G and -C for VFs
      - add Tx timeout and PCIe error handling
    - Intel (igb/igc):
      - RSS key get/set support
      - support for forcing link speed without auto-negotiation
 
  - Switches:
    - NXP (dpaa2):
      - support bonding/LAG offload
    - Mediatek:
      - mt7530: EN7528 support
      - initial support for MT7628
    - Micrel (ksz8/9):
      - refactoring work to move towards library model
      - PTP support for KSZ8463
    - nVidia/Mellanox:
      - support rtnl-lock-less ethtool callbacks
    - Realtek:
      - rtl8366rb: use generic RTL83xx code
      - support SGMII and HSGMII for RTL8367S
 
  - PHYs:
    - Airoha:
      - EcoNet EN7528 PHY support
    - DAPU Telecom
      - DAPU Telecom DAP8211R(I) Gigabit PHY support
    - Realtek:
      - support RTL8261C_CG
      - support RTL8261D
 
 Wireless
 --------
 
  - nl80211: per-link statistics support for multi-link operation
 
  - mac80211: AQL/airtime-fairness support for multicast
 
  - Merge Peripheral Authentication Service (PAS) / TEE support
    for ath12k (shared branch with the firmware/qcom tree).
 
  - New drivers:
    - mm81x for Morse Micro Long-Range S1G devices
    - nxpwifi for NXP devices (mostly forked off from mwifiex)
 
  - Driver changes:
    - Broadcom (brcmfmac):
      - DPP support, some Cypress part update
    - MediaTek (mt76):
      - mt7928 support
      - mt7925 NAN support
      - mt7996 AP powersave improvements
    - Qualcomm (ath12k):
      - much kernel infrastructure integration work
      - AHB platform MultiPD support
    - Realtek (rt89):
      - LED support
      - RTL8922DE support
      - dual-BT coex for RTL8922D
    - Intel:
      - new FW version support
 
 Bluetooth
 ---------
 
  - HCI: add support for Shorter Connection Interval (SCI) feature.
 
  - af_bluetooth: add minimal context analysis annotations.
 
  - Driver changes:
    - Intel:
      - add Bluetooth SAR revision 2 support
      - add vendor_reset PCI sysfs for PLDR
    - Mediatek:
      - add USB IDs for MT7902 and MT7922 devices
    - Realtek:
      - add USB IDs for 8761CU and 8852BE devices
    - NXP:
      - add M.2 Bluetooth device support using pwrseq
 
 Misc
 ----
 
  - DPLL support for manual/numerical oscillator control (NCO)
    (implement in zl3073x).
 
  - MCTP support for MCTP over USB v1.1 (DMTF DSP0283).
 
  - Power-over-Ethernet: support Realtek PSE controllers.
 
  - Remove the IBM EHEA driver.
 
  - Remove tulip/xircom_cb driver.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "One of the 'small improvements all over the place' releases for us.

  It's hard to draw any direct comparisons because summer vacations
  disrupted our patch processing (and presumably - generation) quite a
  bit.

  Quick and dirty count suggests we (Paolo and I) merged a very similar
  number of net (632) and net-next (648) patches. This is not telling
  the full story either because 1/3 to 1/2 of the net-next patches also
  *seem* like AI-driven low priority fixes, cleanups and clarifications.

  We are completely overwhelmed, of course. The glimmer of hope is that
  we secured sufficient LLM budget and access (thank you Meta!) to run
  reviews with multiple frontier models on each patch. This eliminates
  some hallucinations. That said, in terms of review, the LLMs can only
  do so much.

  The sad truth is that our APIs (especially for rare events like PCIe
  errors, timeouts etc) have always been racy, and now LLMs don't let us
  ignore that. I expect our direction for the next release will be to
  tweak the reviews a little bit more, but start shifting focus to
  letting the LLMs take care of the busy work - managing patchwork,
  automating common process complaints, editing commit messages, and
  maybe applying patches which already got "reviewed-by" tags from
  people we trust...

  Core & protocols:

   - A few steps lowering rtnl_lock dependence:
      - per-netns netdev unregistration for select SW drivers (e.g.
        veth, ipvlan, tunnels)
      - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
      - prepare software drivers and TC qdiscs for rtnl_lock-less GET

   - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve)

   - Support buffers larger than PAGE_SIZE in devmem zero-copy API

   - Improve MPTCP handling of extreme memory pressure handling, when
     out-of-order queue had to be pruned

   - Report the per-group user count via RTM_GETMULTICAST

   - Expose the route deletion reason in RTM_DELROUTE

   - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more
     useful handling of LSM denials when receiving SCM_RIGHTS messages:
     instead of truncating the message at the first blocked fd, keep
     every fd slot and store the LSM errno in the blocked slot

   - IPv6 Segment Routing - support looking up the post-encap SID
     (address) in a different/specified routing table

   - Support PRP RedBox (interlink) creation

   - Support per-nexthop UDP dst port in VXLAN

   - Continue converting getsockopt callbacks in a number of protocols
     to iov_iter

  Ethernet:

   - Merge initial CXL support for AMD/Solarflare NICs (shared branch
     with the CXL tree)

   - New drivers:
      - ADIN1140 10BASE-T1S MACPHY
      - Initial skeleton of Intel iXD and ZTE Dinghai drivers

   - High-speed NICs:
      - AMD/Pensando:
         - support firmware flashing
      - Cisco (enic):
         - SR-IOV V2 admin channel and MBOX protocol
      - Huawei (hns3):
         - support for ethtool pfc_prevention_tout
      - nVidia/Mellanox:
         - support sharing bandwidth control across interfaces
           of the same device
      - Marvell (octeontx2-pf):
         - link RQ page pools to netdev for Netlink stats
      - Google vNIC:
         - XDP metadata support for DQ RDA
      - Microsoft vNIC:
         - support forcing full-page RX buffers

   - Other NICs:
      - Synopsys IP:
         - eic7700: support for eth1
      - Microchip (lan743x):
         - support for RMII interface
      - Wangxun:
         - support for ethtool -G and -C for VFs
         - add Tx timeout and PCIe error handling
      - Intel (igb/igc):
         - RSS key get/set support
         - support for forcing link speed without auto-negotiation

   - Switches:
      - NXP (dpaa2):
         - support bonding/LAG offload
      - Mediatek:
         - mt7530: EN7528 support
         - initial support for MT7628
      - Micrel (ksz8/9):
         - refactoring work to move towards library model
         - PTP support for KSZ8463
      - nVidia/Mellanox:
         - support rtnl-lock-less ethtool callbacks
      - Realtek:
         - rtl8366rb: use generic RTL83xx code
         - support SGMII and HSGMII for RTL8367S

   - PHYs:
      - Airoha:
         - EcoNet EN7528 PHY support
      - DAPU Telecom
         - DAPU Telecom DAP8211R(I) Gigabit PHY support
      - Realtek:
         - support RTL8261C_CG
         - support RTL8261D

  Wireless:

   - nl80211: per-link statistics support for multi-link operation

   - mac80211: AQL/airtime-fairness support for multicast

   - Merge Peripheral Authentication Service (PAS) / TEE support for
     ath12k (shared branch with the firmware/qcom tree)

   - New drivers:
      - mm81x for Morse Micro Long-Range S1G devices
      - nxpwifi for NXP devices (mostly forked off from mwifiex)

   - Driver changes:
      - Broadcom (brcmfmac):
         - DPP support, some Cypress part update
      - MediaTek (mt76):
         - mt7928 support
         - mt7925 NAN support
         - mt7996 AP powersave improvements
      - Qualcomm (ath12k):
         - much kernel infrastructure integration work
         - AHB platform MultiPD support
      - Realtek (rt89):
         - LED support
         - RTL8922DE support
         - dual-BT coex for RTL8922D
      - Intel:
         - new FW version support

  Bluetooth:

   - HCI: add support for Shorter Connection Interval (SCI) feature

   - af_bluetooth: add minimal context analysis annotations

   - Driver changes:
      - Intel:
         - add Bluetooth SAR revision 2 support
         - add vendor_reset PCI sysfs for PLDR
      - Mediatek:
         - add USB IDs for MT7902 and MT7922 devices
      - Realtek:
         - add USB IDs for 8761CU and 8852BE devices
      - NXP:
         - add M.2 Bluetooth device support using pwrseq

  Misc:

   - DPLL support for manual/numerical oscillator control (NCO)
     (implement in zl3073x)

   - MCTP support for MCTP over USB v1.1 (DMTF DSP0283)

   - Power-over-Ethernet: support Realtek PSE controllers

   - Remove the IBM EHEA driver

   - Remove tulip/xircom_cb driver"

* tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1433 commits)
  net/mlx5e: do not HW-GRO coalesce small frames
  net: openvswitch: fix nf_connlabels leak in ovs_ct_init
  net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
  net: openvswitch: fix flow mask use-after-free on flow deletion
  sctp: stop processing a packet once its association is deleted
  dpll: zl3073x: add PTP clock support
  dpll: zl3073x: add channel ToD, phase step and TIE operations
  dpll: zl3073x: scale poll interval proportionally to timeout
  ptp: vmclock: prevent read-only mappings from becoming writable
  ipv4: reject undersized MTUs in ip_do_fragment()
  bonding: initialize err for empty target lists
  net: dsa: initial support for MT7628 embedded switch
  net: dsa: initial MT7628 tagging driver
  net: phy: mediatek: add phy driver for MT7628 built-in Fast Ethernet PHYs
  dt-bindings: net: dsa: add MT7628 ESW
  net: pse-pd: realtek-pse-mcu: add UART transport
  net: pse-pd: realtek-pse-mcu: add I2C transport
  net: pse-pd: add Realtek PSE MCU core
  dt-bindings: net: pse-pd: add bindings for Realtek PSE MCU
  vsock: use sock_error() to consume sk_err after a failed connect
  ...
2026-08-20 08:16:04 -07:00
..
80211 Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
acpi ACPI: bus: Eliminate struct acpi_driver 2026-07-06 13:31:50 +02:00
backlight
coco Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
crypto Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
cxl docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
dmaengine docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
driver-model driver core: platform: set mod_name in driver registration 2026-06-08 23:28:24 +02:00
early-userspace doc: early_userspace_support.rst: trivial fix: directory -> file 2026-02-23 14:52:36 -07:00
firmware Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
fpga fpga: region: add owner module and take its refcount 2024-04-23 15:37:20 +08:00
gpio Documentation: gpio: update the preferred method for using software node lookup 2026-04-08 15:52:26 +02:00
hte
i3c docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
iio docs: iio: triggered-buffers: use new helpers in example 2026-05-31 11:01:46 +01:00
md
media media: Documentation: Add myself as maintainer for media-ci 2026-07-10 09:53:50 +02:00
mei docs: driver-api: properly format ToC headings 2023-11-17 13:05:26 -07:00
memory-devices Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
mmc Documentation: mmc: Add mmc-test doc 2024-09-05 12:13:39 +02:00
mtd mtd: spi-nor: Add steps for testing locking with CMP 2026-05-27 14:36:02 +02:00
nfc
nvdimm nvdimm/btt: Handle preemption in BTT lane acquisition 2026-06-01 13:53:24 -07:00
pci docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
phy docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
pldmfw Documentation: pldmfw: Demote library overview section 2025-11-05 11:29:30 -07:00
pm Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
rapidio
serial dt-bindings: serial: rs485: remove deprecated .txt binding stub 2026-05-22 11:47:18 +02:00
soundwire Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
surface_aggregator Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
thermal thermal: int340x: processor_thermal: Enable slow workload type hints 2026-01-07 21:42:10 +01:00
tty docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
usb docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
virtio virtio: store owner from modules with register_virtio_driver() 2024-04-08 04:11:04 -04:00
xilinx Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
aperture.rst
auxiliary_bus.rst drivers/base: Remove unused auxiliary_find_device 2024-10-14 08:21:09 +02:00
basics.rst docs: Update documentation to avoid mentioning of kernel.h 2025-12-22 14:59:18 -07:00
clk.rst clk: remove round_rate() clk ops 2026-02-22 17:38:21 -05:00
component.rst
connector.rst
console.rst
devfreq.rst
device_link.rst
device-io.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
dma-buf.rst dma-buf: Remove DMA-BUF sysfs stats 2026-01-19 19:10:01 +05:30
dpll.rst dpll: use pin owner's dpll ref for pin-level attribute setting 2026-08-11 11:30:07 +02:00
edac.rst
eisa.rst docs: driver-api: eisa: add SPDX license identifier 2026-05-03 09:08:37 -06:00
extcon.rst Documentation: extcon: add documentation for Extcon subsystem 2024-12-08 21:59:40 +09:00
firewire.rst firewire: core: expose kernel API to schedule work item to process isochronous context 2024-09-08 13:05:48 +09:00
frame-buffer.rst
generic_pt.rst iommupt: Documentation fixes 2025-11-07 11:12:03 +01:00
generic-counter.rst docs: arm: generic-counter: Allow creating cross-references for ABI 2025-02-18 13:42:46 -07:00
hsi.rst
hw-recoverable-errors.rst vmcoreinfo: track and log recoverable hardware errors 2025-11-27 14:24:44 -08:00
i2c.rst
index.rst Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
infiniband.rst RDMA/hfi1: Remove opa_vnic 2026-03-10 07:51:30 -04:00
infrastructure.rst docs/driver-api: infrastructure: add property.h and fwnode.h 2026-07-30 16:23:07 +02:00
input.rst Add libps2 to the input section of driver-api 2024-07-03 16:20:49 -06:00
interconnect.rst docs: interconnect: Document consumer APIs and drop outdated text 2026-03-17 08:51:28 -06:00
io_ordering.rst
io-mapping.rst
ioctl.rst
ipmb.rst
ipmi.rst docs: ipmi: Fix path of the "hotmod" module parameter 2026-06-20 10:23:03 -05:00
isa.rst
libata.rst docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
mailbox.rst Documentation: adopt new coding style of type-aware kmalloc-family 2026-05-03 08:54:21 -06:00
men-chameleon-bus.rst
message-based.rst
misc_devices.rst
miscellaneous.rst
mtdnand.rst treewide: Update email address 2026-01-11 06:09:11 -10:00
ntb.rst Documentation: NTB: Fix typo 2025-05-19 09:04:21 -06:00
nvmem.rst nvmem: Remove unused nvmem cell table support 2025-05-21 14:28:27 +02:00
parport-lowlevel.rst Documentation: parport-lowlevel: Separate function listing code blocks 2025-11-10 12:47:36 -07:00
pin-control.rst pci-v6.18-changes 2025-10-06 10:41:03 -07:00
pps.rst Documentation: driver-api: pps: Add Intel Timed I/O PPS generator 2025-02-21 10:46:49 +01:00
ptp.rst
pwm.rst docs: pwm: Adapt Locking paragraph to reality 2025-07-07 08:39:36 +02:00
pwrseq.rst Documentation: pwrseq: Fix trivial misspellings 2024-11-22 10:36:53 -07:00
regulator.rst
reset.rst reset: convert the core API to using firmware nodes 2026-03-09 10:20:04 +01:00
rfkill.rst
s390-drivers.rst
scsi.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
slimbus.rst
sm501.rst
spi.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
switchtec.rst
sync_file.rst
target.rst
tee.rst tee: Adapt documentation to cover recent additions 2025-12-17 18:28:28 +01:00
uio-howto.rst Docs/driver-api/uio-howto: document mmap_prepare callback 2026-06-23 14:33:38 -06:00
vfio-mediated-device.rst
vfio-pci-device-specific-driver-acceptance.rst
vfio.rst Documentation: Update VFIO NOIOMMU mode 2026-07-14 12:05:01 -03:00
vme.rst staging: vme_user: replace deprecated mmap hook with mmap_prepare 2026-04-05 13:53:44 -07:00
w1.rst
wbrf.rst Docs: typos/spelling 2024-05-02 10:02:29 -06:00
wmi.rst platform/wmi: Add helper functions for WMI string conversions 2026-01-20 15:47:51 +02:00
xillybus.rst
zorro.rst