en Copyright 2015 Java http://kernelsources.org:8080/source/history/linux/tools/testing/selftests/drivers/net/hw/uso.py#91a4855d6c03e770e42f17c798a36a3c46e63de2 Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextPull 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 ... List of files: /linux/tools/testing/selftests/drivers/net/hw/uso.py Wed, 15 Apr 2026 03:36:10 +0200 Linus Torvalds <torvalds@linux-foundation.org> http://kernelsources.org:8080/source/history/linux/tools/testing/selftests/drivers/net/hw/uso.py#05ed6c221e595dce22a3863a97d89088db1c28ee Merge branch 'add-tso-map-once-dma-helpers-and-bnxt-sw-uso-support'Joe Damato says:====================Add TSO map-once DMA helpers and bnxt SW USO supportGreetings:This series extends net/tso to add a data structure and some helpers allowingdrivers to DMA map headers and packet payloads a single time. The helpers canthen be used to reference slices of shared mapping for each segment. Thishelps to avoid the cost of repeated DMA mappings, especially on systems whichuse an IOMMU. N per-packet DMA maps are replaced with a single map for theentire GSO skb. As of v3, the series uses the DMA IOVA API (as suggested byLeon [1]) and provides a fallback path when an IOMMU is not in use. The DMAIOVA API provides even better efficiency than the v2; see below.The added helpers are then used in bnxt to add support for software UDPSegmentation Offloading (SW USO) for older bnxt devices which do not havesupport for USO in hardware. Since the helpers are generic, other driverscan be extended similarly.The v2 showed a ~4x reduction in DMA mapping calls at the same wire packetrate on production traffic with a bnxt device. The v3, however, shows a largerreduction of about ~6x at the same wire packet rate. This is thanks to Leon'ssuggestion of using the DMA IOVA API [1].Special care is taken to make bnxt ethtool operations work correctly: the ringsize cannot be reduced below a minimum threshold while USO is enabled andgrowing the ring automatically re-enables USO if it was previously blocked.This v10 contains some cosmetic changes (wrapping long lines), moves the testto the correct directory, and attempts to fix the slot availability checkadded in the v9.I re-ran the python test and the test passed on my bnxt system. I also ranthis on a production system.====================Link: https://patch.msgid.link/20260408230607.2019402-1-joe@dama.toSigned-off-by: Jakub Kicinski <kuba@kernel.org> List of files: /linux/tools/testing/selftests/drivers/net/hw/uso.py Sun, 12 Apr 2026 19:54:35 +0200 Jakub Kicinski <kuba@kernel.org> http://kernelsources.org:8080/source/history/linux/tools/testing/selftests/drivers/net/hw/uso.py#5d3b12d1a24b72e147fbb585158f51585593f640 selftests: drv-net: Add USO testAdd a simple test for USO. Tests both ipv4 and ipv6 with several fullsegments and a partial segment.Suggested-by: Jakub Kicinski <kuba@kernel.org>Signed-off-by: Joe Damato <joe@dama.to>Link: https://patch.msgid.link/20260408230607.2019402-11-joe@dama.toSigned-off-by: Jakub Kicinski <kuba@kernel.org> List of files: /linux/tools/testing/selftests/drivers/net/hw/uso.py Thu, 09 Apr 2026 01:05:59 +0200 Joe Damato <joe@dama.to>