From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- Documentation/ABI/testing/sysfs-bus-fcoe | 138 +++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-fcoe (limited to 'Documentation/ABI/testing/sysfs-bus-fcoe') diff --git a/Documentation/ABI/testing/sysfs-bus-fcoe b/Documentation/ABI/testing/sysfs-bus-fcoe new file mode 100644 index 000000000..5a4f2091a --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-fcoe @@ -0,0 +1,138 @@ +What: /sys/bus/fcoe/ +Date: August 2012 +KernelVersion: TBD +Contact: Robert Love , devel@open-fcoe.org +Description: The FCoE bus. Attributes in this directory are control interfaces. + +Attributes: + + ctlr_create: + 'FCoE Controller' instance creation interface. Writing an + to this file will allocate and populate sysfs with a + fcoe_ctlr_device (ctlr_X). The user can then configure any + per-port settings and finally write to the fcoe_ctlr_device's + 'start' attribute to begin the kernel's discovery and login + process. + + ctlr_destroy: + 'FCoE Controller' instance removal interface. Writing a + fcoe_ctlr_device's sysfs name to this file will log the + fcoe_ctlr_device out of the fabric or otherwise connected + FCoE devices. It will also free all kernel memory allocated + for this fcoe_ctlr_device and any structures associated + with it, this includes the scsi_host. + +What: /sys/bus/fcoe/devices/ctlr_X +Date: March 2012 +KernelVersion: TBD +Contact: Robert Love , devel@open-fcoe.org +Description: 'FCoE Controller' instances on the fcoe bus. + The FCoE Controller now has a three stage creation process. + 1) Write interface name to ctlr_create 2) Configure the FCoE + Controller (ctlr_X) 3) Enable the FCoE Controller to begin + discovery and login. The FCoE Controller is destroyed by + writing its name, i.e. ctlr_X to the ctlr_delete file. + +Attributes: + + fcf_dev_loss_tmo: + Device loss timeout period (see below). Changing + this value will change the dev_loss_tmo for all + FCFs discovered by this controller. + + mode: + Display or change the FCoE Controller's mode. Possible + modes are 'Fabric' and 'VN2VN'. If a FCoE Controller + is started in 'Fabric' mode then FIP FCF discovery is + initiated and ultimately a fabric login is attempted. + If a FCoE Controller is started in 'VN2VN' mode then + FIP VN2VN discovery and login is performed. A FCoE + Controller only supports one mode at a time. + + enabled: + Whether an FCoE controller is enabled or disabled. + 0 if disabled, 1 if enabled. Writing either 0 or 1 + to this file will enable or disable the FCoE controller. + + lesb/link_fail: + Link Error Status Block (LESB) link failure count. + + lesb/vlink_fail: + Link Error Status Block (LESB) virtual link + failure count. + + lesb/miss_fka: + Link Error Status Block (LESB) missed FCoE + Initialization Protocol (FIP) Keep-Alives (FKA). + + lesb/symb_err: + Link Error Status Block (LESB) symbolic error count. + + lesb/err_block: + Link Error Status Block (LESB) block error count. + + lesb/fcs_error: + Link Error Status Block (LESB) Fibre Channel + Services error count. + +Notes: ctlr_X (global increment starting at 0) + +What: /sys/bus/fcoe/devices/fcf_X +Date: March 2012 +KernelVersion: TBD +Contact: Robert Love , devel@open-fcoe.org +Description: 'FCoE FCF' instances on the fcoe bus. A FCF is a Fibre Channel + Forwarder, which is a FCoE switch that can accept FCoE + (Ethernet) packets, unpack them, and forward the embedded + Fibre Channel frames into a FC fabric. It can also take + outbound FC frames and pack them in Ethernet packets to + be sent to their destination on the Ethernet segment. + +Attributes: + + fabric_name: + Identifies the fabric that the FCF services. + + switch_name: + Identifies the FCF. + + priority: + The switch's priority amongst other FCFs on the same + fabric. + + selected: + 1 indicates that the switch has been selected for use; + 0 indicates that the switch will not be used. + + fc_map: + The Fibre Channel MAP + + vfid: + The Virtual Fabric ID + + mac: + The FCF's MAC address + + fka_period: + The FIP Keep-Alive period + + fabric_state: The internal kernel state + + - "Unknown" - Initialization value + - "Disconnected" - No link to the FCF/fabric + - "Connected" - Host is connected to the FCF + - "Deleted" - FCF is being removed from the system + + dev_loss_tmo: The device loss timeout period for this FCF. + +Notes: A device loss infrastructure similar to the FC Transport's + is present in fcoe_sysfs. It is nice to have so that a + link flapping adapter doesn't continually advance the count + used to identify the discovered FCF. FCFs will exist in a + "Disconnected" state until either the timer expires and the + FCF becomes "Deleted" or the FCF is rediscovered and becomes + "Connected." + + +Users: The first user of this interface will be the fcoeadm application, + which is commonly packaged in the fcoe-utils package. -- cgit v1.2.3