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(). ... --- net/sched/Kconfig | 955 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 955 insertions(+) create mode 100644 net/sched/Kconfig (limited to 'net/sched/Kconfig') diff --git a/net/sched/Kconfig b/net/sched/Kconfig new file mode 100644 index 000000000..4b95cb1ac --- /dev/null +++ b/net/sched/Kconfig @@ -0,0 +1,955 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Traffic control configuration. +# + +menuconfig NET_SCHED + bool "QoS and/or fair queueing" + select NET_SCH_FIFO + help + When the kernel has several packets to send out over a network + device, it has to decide which ones to send first, which ones to + delay, and which ones to drop. This is the job of the queueing + disciplines, several different algorithms for how to do this + "fairly" have been proposed. + + If you say N here, you will get the standard packet scheduler, which + is a FIFO (first come, first served). If you say Y here, you will be + able to choose from among several alternative algorithms which can + then be attached to different network devices. This is useful for + example if some of your network devices are real time devices that + need a certain minimum data flow rate, or if you need to limit the + maximum data flow rate for traffic which matches specified criteria. + This code is considered to be experimental. + + To administer these schedulers, you'll need the user-level utilities + from the package iproute2+tc at + . That package + also contains some documentation; for more, check out + . + + This Quality of Service (QoS) support will enable you to use + Differentiated Services (diffserv) and Resource Reservation Protocol + (RSVP) on your Linux router if you also say Y to the corresponding + classifiers below. Documentation and software is at + . + + If you say Y here and to "/proc file system" below, you will be able + to read status information about packet schedulers from the file + /proc/net/psched. + + The available schedulers are listed in the following questions; you + can say Y to as many as you like. If unsure, say N now. + +if NET_SCHED + +comment "Queueing/Scheduling" + +config NET_SCH_HTB + tristate "Hierarchical Token Bucket (HTB)" + help + Say Y here if you want to use the Hierarchical Token Buckets (HTB) + packet scheduling algorithm. See + for complete manual and + in-depth articles. + + HTB is very similar to CBQ regarding its goals however is has + different properties and different algorithm. + + To compile this code as a module, choose M here: the + module will be called sch_htb. + +config NET_SCH_HFSC + tristate "Hierarchical Fair Service Curve (HFSC)" + help + Say Y here if you want to use the Hierarchical Fair Service Curve + (HFSC) packet scheduling algorithm. + + To compile this code as a module, choose M here: the + module will be called sch_hfsc. + +config NET_SCH_PRIO + tristate "Multi Band Priority Queueing (PRIO)" + help + Say Y here if you want to use an n-band priority queue packet + scheduler. + + To compile this code as a module, choose M here: the + module will be called sch_prio. + +config NET_SCH_MULTIQ + tristate "Hardware Multiqueue-aware Multi Band Queuing (MULTIQ)" + help + Say Y here if you want to use an n-band queue packet scheduler + to support devices that have multiple hardware transmit queues. + + To compile this code as a module, choose M here: the + module will be called sch_multiq. + +config NET_SCH_RED + tristate "Random Early Detection (RED)" + help + Say Y here if you want to use the Random Early Detection (RED) + packet scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_red. + +config NET_SCH_SFB + tristate "Stochastic Fair Blue (SFB)" + help + Say Y here if you want to use the Stochastic Fair Blue (SFB) + packet scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_sfb. + +config NET_SCH_SFQ + tristate "Stochastic Fairness Queueing (SFQ)" + help + Say Y here if you want to use the Stochastic Fairness Queueing (SFQ) + packet scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_sfq. + +config NET_SCH_TEQL + tristate "True Link Equalizer (TEQL)" + help + Say Y here if you want to use the True Link Equalizer (TLE) packet + scheduling algorithm. This queueing discipline allows the combination + of several physical devices into one virtual device. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_teql. + +config NET_SCH_TBF + tristate "Token Bucket Filter (TBF)" + help + Say Y here if you want to use the Token Bucket Filter (TBF) packet + scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_tbf. + +config NET_SCH_CBS + tristate "Credit Based Shaper (CBS)" + help + Say Y here if you want to use the Credit Based Shaper (CBS) packet + scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_cbs. + +config NET_SCH_ETF + tristate "Earliest TxTime First (ETF)" + help + Say Y here if you want to use the Earliest TxTime First (ETF) packet + scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_etf. + +config NET_SCH_MQPRIO_LIB + tristate + help + Common library for manipulating mqprio queue configurations. + +config NET_SCH_TAPRIO + tristate "Time Aware Priority (taprio) Scheduler" + select NET_SCH_MQPRIO_LIB + help + Say Y here if you want to use the Time Aware Priority (taprio) packet + scheduling algorithm. + + See the top of for more details. + + To compile this code as a module, choose M here: the + module will be called sch_taprio. + +config NET_SCH_GRED + tristate "Generic Random Early Detection (GRED)" + help + Say Y here if you want to use the Generic Random Early Detection + (GRED) packet scheduling algorithm for some of your network devices + (see the top of for details and + references about the algorithm). + + To compile this code as a module, choose M here: the + module will be called sch_gred. + +config NET_SCH_NETEM + tristate "Network emulator (NETEM)" + help + Say Y if you want to emulate network delay, loss, and packet + re-ordering. This is often useful to simulate networks when + testing applications or protocols. + + To compile this driver as a module, choose M here: the module + will be called sch_netem. + + If unsure, say N. + +config NET_SCH_DRR + tristate "Deficit Round Robin scheduler (DRR)" + help + Say Y here if you want to use the Deficit Round Robin (DRR) packet + scheduling algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_drr. + + If unsure, say N. + +config NET_SCH_MQPRIO + tristate "Multi-queue priority scheduler (MQPRIO)" + select NET_SCH_MQPRIO_LIB + help + Say Y here if you want to use the Multi-queue Priority scheduler. + This scheduler allows QOS to be offloaded on NICs that have support + for offloading QOS schedulers. + + To compile this driver as a module, choose M here: the module will + be called sch_mqprio. + + If unsure, say N. + +config NET_SCH_SKBPRIO + tristate "SKB priority queue scheduler (SKBPRIO)" + help + Say Y here if you want to use the SKB priority queue + scheduler. This schedules packets according to skb->priority, + which is useful for request packets in DoS mitigation systems such + as Gatekeeper. + + To compile this driver as a module, choose M here: the module will + be called sch_skbprio. + + If unsure, say N. + +config NET_SCH_CHOKE + tristate "CHOose and Keep responsive flow scheduler (CHOKE)" + help + Say Y here if you want to use the CHOKe packet scheduler (CHOose + and Keep for responsive flows, CHOose and Kill for unresponsive + flows). This is a variation of RED which tries to penalize flows + that monopolize the queue. + + To compile this code as a module, choose M here: the + module will be called sch_choke. + +config NET_SCH_QFQ + tristate "Quick Fair Queueing scheduler (QFQ)" + help + Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ) + packet scheduling algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_qfq. + + If unsure, say N. + +config NET_SCH_CODEL + tristate "Controlled Delay AQM (CODEL)" + help + Say Y here if you want to use the Controlled Delay (CODEL) + packet scheduling algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_codel. + + If unsure, say N. + +config NET_SCH_FQ_CODEL + tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)" + help + Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL) + packet scheduling algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_fq_codel. + + If unsure, say N. + +config NET_SCH_CAKE + tristate "Common Applications Kept Enhanced (CAKE)" + help + Say Y here if you want to use the Common Applications Kept Enhanced + (CAKE) queue management algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_cake. + + If unsure, say N. + +config NET_SCH_FQ + tristate "Fair Queue" + help + Say Y here if you want to use the FQ packet scheduling algorithm. + + FQ does flow separation, and is able to respect pacing requirements + set by TCP stack into sk->sk_pacing_rate (for locally generated + traffic) + + To compile this driver as a module, choose M here: the module + will be called sch_fq. + + If unsure, say N. + +config NET_SCH_HHF + tristate "Heavy-Hitter Filter (HHF)" + help + Say Y here if you want to use the Heavy-Hitter Filter (HHF) + packet scheduling algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_hhf. + +config NET_SCH_PIE + tristate "Proportional Integral controller Enhanced (PIE) scheduler" + help + Say Y here if you want to use the Proportional Integral controller + Enhanced scheduler packet scheduling algorithm. + For more information, please see https://tools.ietf.org/html/rfc8033 + + To compile this driver as a module, choose M here: the module + will be called sch_pie. + + If unsure, say N. + +config NET_SCH_FQ_PIE + depends on NET_SCH_PIE + tristate "Flow Queue Proportional Integral controller Enhanced (FQ-PIE)" + help + Say Y here if you want to use the Flow Queue Proportional Integral + controller Enhanced (FQ-PIE) packet scheduling algorithm. + For more information, please see https://tools.ietf.org/html/rfc8033 + + To compile this driver as a module, choose M here: the module + will be called sch_fq_pie. + + If unsure, say N. + +config NET_SCH_INGRESS + tristate "Ingress/classifier-action Qdisc" + depends on NET_CLS_ACT + select NET_INGRESS + select NET_EGRESS + help + Say Y here if you want to use classifiers for incoming and/or outgoing + packets. This qdisc doesn't do anything else besides running classifiers, + which can also have actions attached to them. In case of outgoing packets, + classifiers that this qdisc holds are executed in the transmit path + before real enqueuing to an egress qdisc happens. + + If unsure, say Y. + + To compile this code as a module, choose M here: the module will be + called sch_ingress with alias of sch_clsact. + +config NET_SCH_PLUG + tristate "Plug network traffic until release (PLUG)" + help + + This queuing discipline allows userspace to plug/unplug a network + output queue, using the netlink interface. When it receives an + enqueue command it inserts a plug into the outbound queue that + causes following packets to enqueue until a dequeue command arrives + over netlink, causing the plug to be removed and resuming the normal + packet flow. + + This module also provides a generic "network output buffering" + functionality (aka output commit), wherein upon arrival of a dequeue + command, only packets up to the first plug are released for delivery. + The Remus HA project uses this module to enable speculative execution + of virtual machines by allowing the generated network output to be rolled + back if needed. + + For more information, please refer to + + Say Y here if you are using this kernel for Xen dom0 and + want to protect Xen guests with Remus. + + To compile this code as a module, choose M here: the + module will be called sch_plug. + +config NET_SCH_ETS + tristate "Enhanced transmission selection scheduler (ETS)" + help + The Enhanced Transmission Selection scheduler is a classful + queuing discipline that merges functionality of PRIO and DRR + qdiscs in one scheduler. ETS makes it easy to configure a set of + strict and bandwidth-sharing bands to implement the transmission + selection described in 802.1Qaz. + + Say Y here if you want to use the ETS packet scheduling + algorithm. + + To compile this driver as a module, choose M here: the module + will be called sch_ets. + + If unsure, say N. + +menuconfig NET_SCH_DEFAULT + bool "Allow override default queue discipline" + help + Support for selection of default queuing discipline. + + Nearly all users can safely say no here, and the default + of pfifo_fast will be used. Many distributions already set + the default value via /proc/sys/net/core/default_qdisc. + + If unsure, say N. + +if NET_SCH_DEFAULT + +choice + prompt "Default queuing discipline" + default DEFAULT_PFIFO_FAST + help + Select the queueing discipline that will be used by default + for all network devices. + + config DEFAULT_FQ + bool "Fair Queue" if NET_SCH_FQ + + config DEFAULT_CODEL + bool "Controlled Delay" if NET_SCH_CODEL + + config DEFAULT_FQ_CODEL + bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL + + config DEFAULT_FQ_PIE + bool "Flow Queue Proportional Integral controller Enhanced" if NET_SCH_FQ_PIE + + config DEFAULT_SFQ + bool "Stochastic Fair Queue" if NET_SCH_SFQ + + config DEFAULT_PFIFO_FAST + bool "Priority FIFO Fast" +endchoice + +config DEFAULT_NET_SCH + string + default "pfifo_fast" if DEFAULT_PFIFO_FAST + default "fq" if DEFAULT_FQ + default "fq_codel" if DEFAULT_FQ_CODEL + default "fq_pie" if DEFAULT_FQ_PIE + default "sfq" if DEFAULT_SFQ + default "pfifo_fast" +endif + +comment "Classification" + +config NET_CLS + bool + +config NET_CLS_BASIC + tristate "Elementary classification (BASIC)" + select NET_CLS + help + Say Y here if you want to be able to classify packets using + only extended matches and actions. + + To compile this code as a module, choose M here: the + module will be called cls_basic. + +config NET_CLS_ROUTE4 + tristate "Routing decision (ROUTE)" + depends on INET + select IP_ROUTE_CLASSID + select NET_CLS + help + If you say Y here, you will be able to classify packets + according to the route table entry they matched. + + To compile this code as a module, choose M here: the + module will be called cls_route. + +config NET_CLS_FW + tristate "Netfilter mark (FW)" + select NET_CLS + help + If you say Y here, you will be able to classify packets + according to netfilter/firewall marks. + + To compile this code as a module, choose M here: the + module will be called cls_fw. + +config NET_CLS_U32 + tristate "Universal 32bit comparisons w/ hashing (U32)" + select NET_CLS + help + Say Y here to be able to classify packets using a universal + 32bit pieces based comparison scheme. + + To compile this code as a module, choose M here: the + module will be called cls_u32. + +config CLS_U32_PERF + bool "Performance counters support" + depends on NET_CLS_U32 + help + Say Y here to make u32 gather additional statistics useful for + fine tuning u32 classifiers. + +config CLS_U32_MARK + bool "Netfilter marks support" + depends on NET_CLS_U32 + help + Say Y here to be able to use netfilter marks as u32 key. + +config NET_CLS_FLOW + tristate "Flow classifier" + select NET_CLS + help + If you say Y here, you will be able to classify packets based on + a configurable combination of packet keys. This is mostly useful + in combination with SFQ. + + To compile this code as a module, choose M here: the + module will be called cls_flow. + +config NET_CLS_CGROUP + tristate "Control Group Classifier" + select NET_CLS + select CGROUP_NET_CLASSID + depends on CGROUPS + help + Say Y here if you want to classify packets based on the control + cgroup of their process. + + To compile this code as a module, choose M here: the + module will be called cls_cgroup. + +config NET_CLS_BPF + tristate "BPF-based classifier" + select NET_CLS + help + If you say Y here, you will be able to classify packets based on + programmable BPF (JIT'ed) filters as an alternative to ematches. + + To compile this code as a module, choose M here: the module will + be called cls_bpf. + +config NET_CLS_FLOWER + tristate "Flower classifier" + select NET_CLS + help + If you say Y here, you will be able to classify packets based on + a configurable combination of packet keys and masks. + + To compile this code as a module, choose M here: the module will + be called cls_flower. + +config NET_CLS_MATCHALL + tristate "Match-all classifier" + select NET_CLS + help + If you say Y here, you will be able to classify packets based on + nothing. Every packet will match. + + To compile this code as a module, choose M here: the module will + be called cls_matchall. + +config NET_EMATCH + bool "Extended Matches" + select NET_CLS + help + Say Y here if you want to use extended matches on top of classifiers + and select the extended matches below. + + Extended matches are small classification helpers not worth writing + a separate classifier for. + + A recent version of the iproute2 package is required to use + extended matches. + +config NET_EMATCH_STACK + int "Stack size" + depends on NET_EMATCH + default "32" + help + Size of the local stack variable used while evaluating the tree of + ematches. Limits the depth of the tree, i.e. the number of + encapsulated precedences. Every level requires 4 bytes of additional + stack space. + +config NET_EMATCH_CMP + tristate "Simple packet data comparison" + depends on NET_EMATCH + help + Say Y here if you want to be able to classify packets based on + simple packet data comparisons for 8, 16, and 32bit values. + + To compile this code as a module, choose M here: the + module will be called em_cmp. + +config NET_EMATCH_NBYTE + tristate "Multi byte comparison" + depends on NET_EMATCH + help + Say Y here if you want to be able to classify packets based on + multiple byte comparisons mainly useful for IPv6 address comparisons. + + To compile this code as a module, choose M here: the + module will be called em_nbyte. + +config NET_EMATCH_U32 + tristate "U32 key" + depends on NET_EMATCH + help + Say Y here if you want to be able to classify packets using + the famous u32 key in combination with logic relations. + + To compile this code as a module, choose M here: the + module will be called em_u32. + +config NET_EMATCH_META + tristate "Metadata" + depends on NET_EMATCH + help + Say Y here if you want to be able to classify packets based on + metadata such as load average, netfilter attributes, socket + attributes and routing decisions. + + To compile this code as a module, choose M here: the + module will be called em_meta. + +config NET_EMATCH_TEXT + tristate "Textsearch" + depends on NET_EMATCH + select TEXTSEARCH + select TEXTSEARCH_KMP + select TEXTSEARCH_BM + select TEXTSEARCH_FSM + help + Say Y here if you want to be able to classify packets based on + textsearch comparisons. + + To compile this code as a module, choose M here: the + module will be called em_text. + +config NET_EMATCH_CANID + tristate "CAN Identifier" + depends on NET_EMATCH && (CAN=y || CAN=m) + help + Say Y here if you want to be able to classify CAN frames based + on CAN Identifier. + + To compile this code as a module, choose M here: the + module will be called em_canid. + +config NET_EMATCH_IPSET + tristate "IPset" + depends on NET_EMATCH && IP_SET + help + Say Y here if you want to be able to classify packets based on + ipset membership. + + To compile this code as a module, choose M here: the + module will be called em_ipset. + +config NET_EMATCH_IPT + tristate "IPtables Matches" + depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES + help + Say Y here to be able to classify packets based on iptables + matches. + Current supported match is "policy" which allows packet classification + based on IPsec policy that was used during decapsulation + + To compile this code as a module, choose M here: the + module will be called em_ipt. + +config NET_CLS_ACT + bool "Actions" + select NET_CLS + help + Say Y here if you want to use traffic control actions. Actions + get attached to classifiers and are invoked after a successful + classification. They are used to overwrite the classification + result, instantly drop or redirect packets, etc. + + A recent version of the iproute2 package is required to use + extended matches. + +config NET_ACT_POLICE + tristate "Traffic Policing" + depends on NET_CLS_ACT + help + Say Y here if you want to do traffic policing, i.e. strict + bandwidth limiting. This action replaces the existing policing + module. + + To compile this code as a module, choose M here: the + module will be called act_police. + +config NET_ACT_GACT + tristate "Generic actions" + depends on NET_CLS_ACT + help + Say Y here to take generic actions such as dropping and + accepting packets. + + To compile this code as a module, choose M here: the + module will be called act_gact. + +config GACT_PROB + bool "Probability support" + depends on NET_ACT_GACT + help + Say Y here to use the generic action randomly or deterministically. + +config NET_ACT_MIRRED + tristate "Redirecting and Mirroring" + depends on NET_CLS_ACT + help + Say Y here to allow packets to be mirrored or redirected to + other devices. + + To compile this code as a module, choose M here: the + module will be called act_mirred. + +config NET_ACT_SAMPLE + tristate "Traffic Sampling" + depends on NET_CLS_ACT + select PSAMPLE + help + Say Y here to allow packet sampling tc action. The packet sample + action consists of statistically choosing packets and sampling + them using the psample module. + + To compile this code as a module, choose M here: the + module will be called act_sample. + +config NET_ACT_IPT + tristate "IPtables targets" + depends on NET_CLS_ACT && NETFILTER && NETFILTER_XTABLES + help + Say Y here to be able to invoke iptables targets after successful + classification. + + To compile this code as a module, choose M here: the + module will be called act_ipt. + +config NET_ACT_NAT + tristate "Stateless NAT" + depends on NET_CLS_ACT + help + Say Y here to do stateless NAT on IPv4 packets. You should use + netfilter for NAT unless you know what you are doing. + + To compile this code as a module, choose M here: the + module will be called act_nat. + +config NET_ACT_PEDIT + tristate "Packet Editing" + depends on NET_CLS_ACT + help + Say Y here if you want to mangle the content of packets. + + To compile this code as a module, choose M here: the + module will be called act_pedit. + +config NET_ACT_SIMP + tristate "Simple Example (Debug)" + depends on NET_CLS_ACT + help + Say Y here to add a simple action for demonstration purposes. + It is meant as an example and for debugging purposes. It will + print a configured policy string followed by the packet count + to the console for every packet that passes by. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_simple. + +config NET_ACT_SKBEDIT + tristate "SKB Editing" + depends on NET_CLS_ACT + help + Say Y here to change skb priority or queue_mapping settings. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_skbedit. + +config NET_ACT_CSUM + tristate "Checksum Updating" + depends on NET_CLS_ACT && INET + select LIBCRC32C + help + Say Y here to update some common checksum after some direct + packet alterations. + + To compile this code as a module, choose M here: the + module will be called act_csum. + +config NET_ACT_MPLS + tristate "MPLS manipulation" + depends on NET_CLS_ACT + help + Say Y here to push or pop MPLS headers. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_mpls. + +config NET_ACT_VLAN + tristate "Vlan manipulation" + depends on NET_CLS_ACT + help + Say Y here to push or pop vlan headers. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_vlan. + +config NET_ACT_BPF + tristate "BPF based action" + depends on NET_CLS_ACT + help + Say Y here to execute BPF code on packets. The BPF code will decide + if the packet should be dropped or not. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_bpf. + +config NET_ACT_CONNMARK + tristate "Netfilter Connection Mark Retriever" + depends on NET_CLS_ACT && NETFILTER + depends on NF_CONNTRACK && NF_CONNTRACK_MARK + help + Say Y here to allow retrieving of conn mark + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_connmark. + +config NET_ACT_CTINFO + tristate "Netfilter Connection Mark Actions" + depends on NET_CLS_ACT && NETFILTER + depends on NF_CONNTRACK && NF_CONNTRACK_MARK + help + Say Y here to allow transfer of a connmark stored information. + Current actions transfer connmark stored DSCP into + ipv4/v6 diffserv and/or to transfer connmark to packet + mark. Both are useful for restoring egress based marks + back onto ingress connections for qdisc priority mapping + purposes. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_ctinfo. + +config NET_ACT_SKBMOD + tristate "skb data modification action" + depends on NET_CLS_ACT + help + Say Y here to allow modification of skb data + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_skbmod. + +config NET_ACT_IFE + tristate "Inter-FE action based on IETF ForCES InterFE LFB" + depends on NET_CLS_ACT + select NET_IFE + help + Say Y here to allow for sourcing and terminating metadata + For details refer to netdev01 paper: + "Distributing Linux Traffic Control Classifier-Action Subsystem" + Authors: Jamal Hadi Salim and Damascene M. Joachimpillai + + To compile this code as a module, choose M here: the + module will be called act_ife. + +config NET_ACT_TUNNEL_KEY + tristate "IP tunnel metadata manipulation" + depends on NET_CLS_ACT + help + Say Y here to set/release ip tunnel metadata. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_tunnel_key. + +config NET_ACT_CT + tristate "connection tracking tc action" + depends on NET_CLS_ACT && NF_CONNTRACK && (!NF_NAT || NF_NAT) && NF_FLOW_TABLE + select NF_CONNTRACK_OVS + select NF_NAT_OVS if NF_NAT + help + Say Y here to allow sending the packets to conntrack module. + + If unsure, say N. + + To compile this code as a module, choose M here: the + module will be called act_ct. + +config NET_ACT_GATE + tristate "Frame gate entry list control tc action" + depends on NET_CLS_ACT + help + Say Y here to allow to control the ingress flow to be passed at + specific time slot and be dropped at other specific time slot by + the gate entry list. + + If unsure, say N. + To compile this code as a module, choose M here: the + module will be called act_gate. + +config NET_IFE_SKBMARK + tristate "Support to encoding decoding skb mark on IFE action" + depends on NET_ACT_IFE + +config NET_IFE_SKBPRIO + tristate "Support to encoding decoding skb prio on IFE action" + depends on NET_ACT_IFE + +config NET_IFE_SKBTCINDEX + tristate "Support to encoding decoding skb tcindex on IFE action" + depends on NET_ACT_IFE + +config NET_TC_SKB_EXT + bool "TC recirculation support" + depends on NET_CLS_ACT + select SKB_EXTENSIONS + + help + Say Y here to allow tc chain misses to continue in OvS datapath in + the correct recirc_id, and hardware chain misses to continue in + the correct chain in tc software datapath. + + Say N here if you won't be using tc<->ovs offload or tc chains offload. + +endif # NET_SCHED + +config NET_SCH_FIFO + bool -- cgit v1.2.3