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2022-04-01mctp: Use output netdev to allocate skb headroomMatt Johnston1-2/+0
Previously the skb was allocated with headroom MCTP_HEADER_MAXLEN, but that isn't sufficient if we are using devs that are not MCTP specific. This also adds a check that the smctp_halen provided to sendmsg for extended addressing is the correct size for the netdev. Fixes: 833ef3b91de6 ("mctp: Populate socket implementation") Reported-by: Matthew Rinaldi <mjrinal@g.clemson.edu> Signed-off-by: Matt Johnston <matt@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-24Merge tag 'net-next-5.18' of ↵Linus Torvalds71-373/+1220
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "The sprinkling of SPI drivers is because we added a new one and Mark sent us a SPI driver interface conversion pull request. Core ---- - Introduce XDP multi-buffer support, allowing the use of XDP with jumbo frame MTUs and combination with Rx coalescing offloads (LRO). - Speed up netns dismantling (5x) and lower the memory cost a little. Remove unnecessary per-netns sockets. Scope some lists to a netns. Cut down RCU syncing. Use batch methods. Allow netdev registration to complete out of order. - Support distinguishing timestamp types (ingress vs egress) and maintaining them across packet scrubbing points (e.g. redirect). - Continue the work of annotating packet drop reasons throughout the stack. - Switch netdev error counters from an atomic to dynamically allocated per-CPU counters. - Rework a few preempt_disable(), local_irq_save() and busy waiting sections problematic on PREEMPT_RT. - Extend the ref_tracker to allow catching use-after-free bugs. BPF --- - Introduce "packing allocator" for BPF JIT images. JITed code is marked read only, and used to be allocated at page granularity. Custom allocator allows for more efficient memory use, lower iTLB pressure and prevents identity mapping huge pages from getting split. - Make use of BTF type annotations (e.g. __user, __percpu) to enforce the correct probe read access method, add appropriate helpers. - Convert the BPF preload to use light skeleton and drop the user-mode-driver dependency. - Allow XDP BPF_PROG_RUN test infra to send real packets, enabling its use as a packet generator. - Allow local storage memory to be allocated with GFP_KERNEL if called from a hook allowed to sleep. - Introduce fprobe (multi kprobe) to speed up mass attachment (arch bits to come later). - Add unstable conntrack lookup helpers for BPF by using the BPF kfunc infra. - Allow cgroup BPF progs to return custom errors to user space. - Add support for AF_UNIX iterator batching. - Allow iterator programs to use sleepable helpers. - Support JIT of add, and, or, xor and xchg atomic ops on arm64. - Add BTFGen support to bpftool which allows to use CO-RE in kernels without BTF info. - Large number of libbpf API improvements, cleanups and deprecations. Protocols --------- - Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev. - Adjust TSO packet sizes based on min_rtt, allowing very low latency links (data centers) to always send full-sized TSO super-frames. - Make IPv6 flow label changes (AKA hash rethink) more configurable, via sysctl and setsockopt. Distinguish between server and client behavior. - VxLAN support to "collect metadata" devices to terminate only configured VNIs. This is similar to VLAN filtering in the bridge. - Support inserting IPv6 IOAM information to a fraction of frames. - Add protocol attribute to IP addresses to allow identifying where given address comes from (kernel-generated, DHCP etc.) - Support setting socket and IPv6 options via cmsg on ping6 sockets. - Reject mis-use of ECN bits in IP headers as part of DSCP/TOS. Define dscp_t and stop taking ECN bits into account in fib-rules. - Add support for locked bridge ports (for 802.1X). - tun: support NAPI for packets received from batched XDP buffs, doubling the performance in some scenarios. - IPv6 extension header handling in Open vSwitch. - Support IPv6 control message load balancing in bonding, prevent neighbor solicitation and advertisement from using the wrong port. Support NS/NA monitor selection similar to existing ARP monitor. - SMC - improve performance with TCP_CORK and sendfile() - support auto-corking - support TCP_NODELAY - MCTP (Management Component Transport Protocol) - add user space tag control interface - I2C binding driver (as specified by DMTF DSP0237) - Multi-BSSID beacon handling in AP mode for WiFi. - Bluetooth: - handle MSFT Monitor Device Event - add MGMT Adv Monitor Device Found/Lost events - Multi-Path TCP: - add support for the SO_SNDTIMEO socket option - lots of selftest cleanups and improvements - Increase the max PDU size in CAN ISOTP to 64 kB. Driver API ---------- - Add HW counters for SW netdevs, a mechanism for devices which offload packet forwarding to report packet statistics back to software interfaces such as tunnels. - Select the default NIC queue count as a fraction of number of physical CPU cores, instead of hard-coding to 8. - Expose devlink instance locks to drivers. Allow device layer of drivers to use that lock directly instead of creating their own which always runs into ordering issues in devlink callbacks. - Add header/data split indication to guide user space enabling of TCP zero-copy Rx. - Allow configuring completion queue event size. - Refactor page_pool to enable fragmenting after allocation. - Add allocation and page reuse statistics to page_pool. - Improve Multiple Spanning Trees support in the bridge to allow reuse of topologies across VLANs, saving HW resources in switches. - DSA (Distributed Switch Architecture): - replay and offload of host VLAN entries - offload of static and local FDB entries on LAG interfaces - FDB isolation and unicast filtering New hardware / drivers ---------------------- - Ethernet: - LAN937x T1 PHYs - Davicom DM9051 SPI NIC driver - Realtek RTL8367S, RTL8367RB-VB switch and MDIO - Microchip ksz8563 switches - Netronome NFP3800 SmartNICs - Fungible SmartNICs - MediaTek MT8195 switches - WiFi: - mt76: MediaTek mt7916 - mt76: MediaTek mt7921u USB adapters - brcmfmac: Broadcom BCM43454/6 - Mobile: - iosm: Intel M.2 7360 WWAN card Drivers ------- - Convert many drivers to the new phylink API built for split PCS designs but also simplifying other cases. - Intel Ethernet NICs: - add TTY for GNSS module for E810T device - improve AF_XDP performance - GTP-C and GTP-U filter offload - QinQ VLAN support - Mellanox Ethernet NICs (mlx5): - support xdp->data_meta - multi-buffer XDP - offload tc push_eth and pop_eth actions - Netronome Ethernet NICs (nfp): - flow-independent tc action hardware offload (police / meter) - AF_XDP - Other Ethernet NICs: - at803x: fiber and SFP support - xgmac: mdio: preamble suppression and custom MDC frequencies - r8169: enable ASPM L1.2 if system vendor flags it as safe - macb/gem: ZynqMP SGMII - hns3: add TX push mode - dpaa2-eth: software TSO - lan743x: multi-queue, mdio, SGMII, PTP - axienet: NAPI and GRO support - Mellanox Ethernet switches (mlxsw): - source and dest IP address rewrites - RJ45 ports - Marvell Ethernet switches (prestera): - basic routing offload - multi-chain TC ACL offload - NXP embedded Ethernet switches (ocelot & felix): - PTP over UDP with the ocelot-8021q DSA tagging protocol - basic QoS classification on Felix DSA switch using dcbnl - port mirroring for ocelot switches - Microchip high-speed industrial Ethernet (sparx5): - offloading of bridge port flooding flags - PTP Hardware Clock - Other embedded switches: - lan966x: PTP Hardward Clock - qca8k: mdio read/write operations via crafted Ethernet packets - Qualcomm 802.11ax WiFi (ath11k): - add LDPC FEC type and 802.11ax High Efficiency data in radiotap - enable RX PPDU stats in monitor co-exist mode - Intel WiFi (iwlwifi): - UHB TAS enablement via BIOS - band disablement via BIOS - channel switch offload - 32 Rx AMPDU sessions in newer devices - MediaTek WiFi (mt76): - background radar detection - thermal management improvements on mt7915 - SAR support for more mt76 platforms - MBSSID and 6 GHz band on mt7915 - RealTek WiFi: - rtw89: AP mode - rtw89: 160 MHz channels and 6 GHz band - rtw89: hardware scan - Bluetooth: - mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS) - Microchip CAN (mcp251xfd): - multiple RX-FIFOs and runtime configurable RX/TX rings - internal PLL, runtime PM handling simplification - improve chip detection and error handling after wakeup" * tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2521 commits) llc: fix netdevice reference leaks in llc_ui_bind() drivers: ethernet: cpsw: fix panic when interrupt coaleceing is set via ethtool ice: don't allow to run ice_send_event_to_aux() in atomic ctx ice: fix 'scheduling while atomic' on aux critical err interrupt net/sched: fix incorrect vlan_push_eth dest field net: bridge: mst: Restrict info size queries to bridge ports net: marvell: prestera: add missing destroy_workqueue() in prestera_module_init() drivers: net: xgene: Fix regression in CRC stripping net: geneve: add missing netlink policy and size for IFLA_GENEVE_INNER_PROTO_INHERIT net: dsa: fix missing host-filtered multicast addresses net/mlx5e: Fix build warning, detected write beyond size of field iwlwifi: mvm: Don't fail if PPAG isn't supported selftests/bpf: Fix kprobe_multi test. Revert "rethook: x86: Add rethook x86 implementation" Revert "arm64: rethook: Add arm64 rethook implementation" Revert "powerpc: Add rethook support" Revert "ARM: rethook: Add rethook arm implementation" netdevice: add missing dm_private kdoc net: bridge: mst: prevent NULL deref in br_mst_info_size() selftests: forwarding: Use same VRF for port and VLAN upper ...
2022-03-24Merge tag 'flexible-array-transformations-5.18-rc1' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux Pull flexible-array transformations from Gustavo Silva: "Treewide patch that replaces zero-length arrays with flexible-array members. This has been baking in linux-next for a whole development cycle" * tag 'flexible-array-transformations-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: treewide: Replace zero-length arrays with flexible-array members
2022-03-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-0/+18
Merge in overtime fixes, no conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-23net/sched: fix incorrect vlan_push_eth dest fieldLouis Peens1-1/+1
Seems like a potential copy-paste bug slipped in here, the second memcpy should of course be populating src and not dest. Fixes: ab95465cde23 ("net/sched: add vlan push_eth and pop_eth action to the hardware IR") Signed-off-by: Louis Peens <louis.peens@corigine.com> Link: https://lore.kernel.org/r/20220323092506.21639-1-louis.peens@corigine.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-22Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski1-0/+14
Alexei Starovoitov says: ==================== pull-request: bpf-next 2022-03-21 v2 We've added 137 non-merge commits during the last 17 day(s) which contain a total of 143 files changed, 7123 insertions(+), 1092 deletions(-). The main changes are: 1) Custom SEC() handling in libbpf, from Andrii. 2) subskeleton support, from Delyan. 3) Use btf_tag to recognize __percpu pointers in the verifier, from Hao. 4) Fix net.core.bpf_jit_harden race, from Hou. 5) Fix bpf_sk_lookup remote_port on big-endian, from Jakub. 6) Introduce fprobe (multi kprobe) _without_ arch bits, from Masami. The arch specific bits will come later. 7) Introduce multi_kprobe bpf programs on top of fprobe, from Jiri. 8) Enable non-atomic allocations in local storage, from Joanne. 9) Various var_off ptr_to_btf_id fixed, from Kumar. 10) bpf_ima_file_hash helper, from Roberto. 11) Add "live packet" mode for XDP in BPF_PROG_RUN, from Toke. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (137 commits) selftests/bpf: Fix kprobe_multi test. Revert "rethook: x86: Add rethook x86 implementation" Revert "arm64: rethook: Add arm64 rethook implementation" Revert "powerpc: Add rethook support" Revert "ARM: rethook: Add rethook arm implementation" bpftool: Fix a bug in subskeleton code generation bpf: Fix bpf_prog_pack when PMU_SIZE is not defined bpf: Fix bpf_prog_pack for multi-node setup bpf: Fix warning for cast from restricted gfp_t in verifier bpf, arm: Fix various typos in comments libbpf: Close fd in bpf_object__reuse_map bpftool: Fix print error when show bpf map bpf: Fix kprobe_multi return probe backtrace Revert "bpf: Add support to inline bpf_get_func_ip helper on x86" bpf: Simplify check in btf_parse_hdr() selftests/bpf/test_lirc_mode2.sh: Exit with proper code bpf: Check for NULL return from bpf_get_btf_vmlinux selftests/bpf: Test skipping stacktrace bpf: Adjust BPF stack helper functions to accommodate skip > 0 bpf: Select proper size for bpf_prog_pack ... ==================== Link: https://lore.kernel.org/r/20220322050159.5507-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-21devlink: add explicitly locked flavor of the rate node APIsJakub Kicinski1-0/+4
We'll need an explicitly locked rate node API for netdevsim to switch eswitch mode setting to locked. Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-20netfilter: nft_fib: add reduce supportFlorian Westphal1-0/+3
The fib expression stores to a register, so we can't add empty stub. Check that the register that is being written is in fact redundant. In most cases, this is expected to cancel tracking as re-use is unlikely. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-03-20netfilter: nft_meta: extend reduce support to bridge familyFlorian Westphal1-0/+2
its enough to export the meta get reduce helper and then call it from nft_meta_bridge too. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-03-20netfilter: nf_tables: cancel tracking for clobbered destination registersPablo Neira Ayuso2-0/+15
Output of expressions might be larger than one single register, this might clobber existing data. Reset tracking for all destination registers that required to store the expression output. This patch adds three new helper functions: - nft_reg_track_update: cancel previous register tracking and update it. - nft_reg_track_cancel: cancel any previous register tracking info. - __nft_reg_track_cancel: cancel only one single register tracking info. Partial register clobbering detection is also supported by checking the .num_reg field which describes the number of register that are used. This patch updates the following expressions: - meta_bridge - bitwise - byteorder - meta - payload to use these helper functions. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-03-20netfilter: nf_tables: do not reduce read-only expressionsPablo Neira Ayuso1-0/+8
Skip register tracking for expressions that perform read-only operations on the registers. Define and use a cookie pointer NFT_REDUCE_READONLY to avoid defining stubs for these expressions. This patch re-enables register tracking which was disabled in ed5f85d42290 ("netfilter: nf_tables: disable register tracking"). Follow up patches add remaining register tracking for existing expressions. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-03-20netfilter: conntrack: Add and use nf_ct_set_auto_assign_helper_warned()Phil Sutter1-0/+1
The function sets the pernet boolean to avoid the spurious warning from nf_ct_lookup_helper() when assigning conntrack helpers via nftables. Fixes: 1a64edf54f55 ("netfilter: nft_ct: add helper set support") Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-03-19Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/David S. Miller2-35/+19
ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2022-03-19 1) Delete duplicated functions that calls same xfrm_api_check. From Leon Romanovsky. 2) Align userland API of the default policy structure to the internal structures. From Nicolas Dichtel. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-18Bluetooth: fix incorrect nonblock bitmask in bt_sock_wait_ready()Gavin Li1-1/+1
Callers pass msg->msg_flags as flags, which contains MSG_DONTWAIT instead of O_NONBLOCK. Signed-off-by: Gavin Li <gavin@matician.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2022-03-18Bluetooth: hci_sync: Add a new quirk to skip HCI_FLT_CLEAR_ALLIsmael Ferreras Morezuelas1-0/+10
Some controllers have problems with being sent a command to clear all filtering. While the HCI code does not unconditionally send a clear-all anymore at BR/EDR setup (after the state machine refactor), there might be more ways of hitting these codepaths in the future as the kernel develops. Cc: stable@vger.kernel.org Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ismael Ferreras Morezuelas <swyterzone@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2022-03-18Merge tag 'wireless-next-2022-03-18' of ↵David S. Miller1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v5.18 Third set of patches for v5.18. Smaller set this time, support for mt7921u and some work on MBSSID support. Also a workaround for rfkill userspace event. Major changes: mac80211 * MBSSID beacon handling in AP mode rfkill * make new event layout opt-in to workaround buggy user space rtlwifi * support On Networks N150 device id mt76 * mt7915: MBSSID and 6 GHz band support * new driver mt7921u ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-18xfrm: rework default policy structureNicolas Dichtel2-35/+19
This is a follow up of commit f8d858e607b2 ("xfrm: make user policy API complete"). The goal is to align userland API to the internal structures. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: Antony Antony <antony.antony@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2022-03-17net: dsa: pass extack to dsa_switch_ops :: port_mirror_add()Vladimir Oltean1-1/+1
Drivers might have error messages to propagate to user space, most common being that they support a single mirror port. Propagate the netlink extack so that they can inform user space in a verbal way of their limitations. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17net: dsa: Handle MST state changesTobias Waldekranz1-0/+3
Add the usual trampoline functionality from the generic DSA layer down to the drivers for MST state changes. When a state changes to disabled/blocking/listening, make sure to fast age any dynamic entries in the affected VLANs (those controlled by the MSTI in question). Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17net: dsa: Pass VLAN MSTI migration notifications to driverTobias Waldekranz1-0/+3
Add the usual trampoline functionality from the generic DSA layer down to the drivers for VLAN MSTI migrations. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17net: bridge: mst: Notify switchdev drivers of MST state changesTobias Waldekranz1-0/+7
Generate a switchdev notification whenever an MST state changes. This notification is keyed by the VLANs MSTI rather than the VID, since multiple VLANs may share the same MST instance. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17net: bridge: mst: Notify switchdev drivers of VLAN MSTI migrationsTobias Waldekranz1-0/+7
Whenever a VLAN moves to a new MSTI, send a switchdev notification so that switchdevs can track a bridge's VID to MSTI mappings. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17net: bridge: mst: Notify switchdev drivers of MST mode changesTobias Waldekranz1-0/+2
Trigger a switchdev event whenever the bridge's MST mode is enabled/disabled. This allows constituent ports to either perform any required hardware config, or refuse the change if it not supported. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2-2/+2
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17net: veth: Account total xdp_frame len running ndo_xdp_xmitLorenzo Bianconi1-0/+14
Even if this is a theoretical issue since it is not possible to perform XDP_REDIRECT on a non-linear xdp_frame, veth driver does not account paged area in ndo_xdp_xmit function pointer. Introduce xdp_get_frame_len utility routine to get the xdp_frame full length and account total frame size running XDP_REDIRECT of a non-linear xdp frame into a veth device. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/54f9fd3bb65d190daf2c0bbae2f852ff16cfbaa0.1646989407.git.lorenzo@kernel.org
2022-03-16net/sched: add vlan push_eth and pop_eth action to the hardware IRMaor Dickman2-0/+16
Add vlan push_eth and pop_eth action to the hardware intermediate representation model which would subsequently allow it to be used by drivers for offload. Signed-off-by: Maor Dickman <maord@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16devlink: pass devlink_port to port_split / port_unsplit callbacksJakub Kicinski1-2/+2
Now that devlink ports are protected by the instance lock it seems natural to pass devlink_port as an argument to the port_split / port_unsplit callbacks. This should save the drivers from doing a lookup. In theory drivers may have supported unsplitting ports which were not registered prior to this change. Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16devlink: expose instance locking and add locked port registeringJakub Kicinski1-0/+11
It should be familiar and beneficial to expose devlink instance lock to the drivers. This way drivers can block devlink from calling them during critical sections without breakneck locking. Add port helpers, port splitting callbacks will be the first target. Use 'devl_' prefix for "explicitly locked" API. Initial RFC used '__devlink' but that's too much typing. devl_lock_is_held() is not defined without lockdep, which is the same behavior as lockdep_is_held() itself. Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16netfilter: flowtable: Fix QinQ and pppoe support for inet tablePablo Neira Ayuso1-0/+18
nf_flow_offload_inet_hook() does not check for 802.1q and PPPoE. Fetch inner ethertype from these encapsulation protocols. Fixes: 72efd585f714 ("netfilter: flowtable: add pppoe support") Fixes: 4cd91f7c290f ("netfilter: flowtable: add vlan support") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-03-15net: Add l3mdev index to flow struct and avoid oif reset for port devicesDavid Ahern1-1/+5
The fundamental premise of VRF and l3mdev core code is binding a socket to a device (l3mdev or netdev with an L3 domain) to indicate L3 scope. Legacy code resets flowi_oif to the l3mdev losing any original port device binding. Ben (among others) has demonstrated use cases where the original port device binding is important and needs to be retained. This patch handles that by adding a new entry to the common flow struct that can indicate the l3mdev index for later rule and table matching avoiding the need to reset flowi_oif. In addition to allowing more use cases that require port device binds, this patch brings a few datapath simplications: 1. l3mdev_fib_rule_match is only called when walking fib rules and always after l3mdev_update_flow. That allows an optimization to bail early for non-VRF type uses cases when flowi_l3mdev is not set. Also, only that index needs to be checked for the FIB table id. 2. l3mdev_update_flow can be called with flowi_oif set to a l3mdev (e.g., VRF) device. By resetting flowi_oif only for this case the FLOWI_FLAG_SKIP_NH_OIF flag is not longer needed and can be removed, removing several checks in the datapath. The flowi_iif path can be simplified to only be called if the it is not loopback (loopback can not be assigned to an L3 domain) and the l3mdev index is not already set. 3. Avoid another device lookup in the output path when the fib lookup returns a reject failure. Note: 2 functional tests for local traffic with reject fib rules are updated to reflect the new direct failure at FIB lookup time for ping rather than the failure on packet path. The current code fails like this: HINT: Fails since address on vrf device is out of device scope COMMAND: ip netns exec ns-A ping -c1 -w1 -I eth1 172.16.3.1 ping: Warning: source address might be selected on device other than: eth1 PING 172.16.3.1 (172.16.3.1) from 172.16.3.1 eth1: 56(84) bytes of data. --- 172.16.3.1 ping statistics --- 1 packets transmitted, 0 received, 100% packet loss, time 0ms where the test now directly fails: HINT: Fails since address on vrf device is out of device scope COMMAND: ip netns exec ns-A ping -c1 -w1 -I eth1 172.16.3.1 ping: connect: No route to host Signed-off-by: David Ahern <dsahern@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://lore.kernel.org/r/20220314204551.16369-1-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-15mac80211: MBSSID beacon handling in AP modeLorenzo Bianconi1-0/+2
Add new fields in struct beacon_data to store all MBSSID elements. Generate a beacon template which includes all MBSSID elements. Move CSA offset to reflect the MBSSID element length. Co-developed-by: Aloka Dixit <alokad@codeaurora.org> Signed-off-by: Aloka Dixit <alokad@codeaurora.org> Co-developed-by: John Crispin <john@phrozen.org> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Money Wang <money.wang@mediatek.com> Link: https://lore.kernel.org/r/5322db3c303f431adaf191ab31c45e151dde5465.1645702516.git.lorenzo@kernel.org [small cleanups] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-03-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nfJakub Kicinski1-1/+0
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net coming late in the 5.17-rc process: 1) Revert port remap to mitigate shadowing service ports, this is causing problems in existing setups and this mitigation can be achieved with explicit ruleset, eg. ... tcp sport < 16386 tcp dport >= 32768 masquerade random This patches provided a built-in policy similar to the one described above. 2) Disable register tracking infrastructure in nf_tables. Florian reported two issues: - Existing expressions with no implemented .reduce interface that causes data-store on register should cancel the tracking. - Register clobbering might be possible storing data on registers that are larger than 32-bits. This might lead to generating incorrect ruleset bytecode. These two issues are scheduled to be addressed in the next release cycle. * git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nf_tables: disable register tracking Revert "netfilter: conntrack: tag conntracks picked up in local out hook" Revert "netfilter: nat: force port remap to prevent shadowing well-known ports" ==================== Link: https://lore.kernel.org/r/20220312220315.64531-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-14net: dsa: report and change port dscp priority using dcbnlVladimir Oltean1-0/+5
Similar to the port-based default priority, IEEE 802.1Q-2018 allows the Application Priority Table to define QoS classes (0 to 7) per IP DSCP value (0 to 63). In the absence of an app table entry for a packet with DSCP value X, QoS classification for that packet falls back to other methods (VLAN PCP or port-based default). The presence of an app table for DSCP value X with priority Y makes the hardware classify the packet to QoS class Y. As opposed to the default-prio where DSA exposes only a "set" in dsa_switch_ops (because the port-based default is the fallback, it always exists, either implicitly or explicitly), for DSCP priorities we expose an "add" and a "del". The addition of a DSCP entry means trusting that DSCP priority, the deletion means ignoring it. Drivers that already trust (at least some) DSCP values can describe their configuration in dsa_switch_ops :: port_get_dscp_prio(), which is called for each DSCP value from 0 to 63. Again, there can be more than one dcbnl app table entry for the same DSCP value, DSA chooses the one with the largest configured priority. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-14net: dsa: report and change port default priority using dcbnlVladimir Oltean1-0/+7
The port-based default QoS class is assigned to packets that lack a VLAN PCP (or the port is configured to not trust the VLAN PCP), an IP DSCP (or the port is configured to not trust IP DSCP), and packets on which no tc-skbedit action has matched. Similar to other drivers, this can be exposed to user space using the DCB Application Priority Table. IEEE 802.1Q-2018 specifies in Table D-8 - Sel field values that when the Selector is 1, the Protocol ID value of 0 denotes the "Default application priority. For use when application priority is not otherwise specified." The way in which the dcbnl integration in DSA has been designed has to do with its requirements. Andrew Lunn explains that SOHO switches are expected to come with some sort of pre-configured QoS profile, and that it is desirable for this to come pre-loaded into the DSA slave interfaces' DCB application priority table. In the dcbnl design, this is possible because calls to dcb_ieee_setapp() can be initiated by anyone including being self-initiated by this device driver. However, what makes this challenging to implement in DSA is that the DSA core manages the net_devices (effectively hiding them from drivers), while drivers manage the hardware. The DSA core has no knowledge of what individual drivers' QoS policies are. DSA could export to drivers a wrapper over dcb_ieee_setapp() and these could call that function to pre-populate the app priority table, however drivers don't have a good moment in time to do this. The dsa_switch_ops :: setup() method gets called before the net_devices are created (dsa_slave_create), and so is dsa_switch_ops :: port_setup(). What remains is dsa_switch_ops :: port_enable(), but this gets called upon each ndo_open. If we add app table entries on every open, we'd need to remove them on close, to avoid duplicate entry errors. But if we delete app priority entries on close, what we delete may not be the initial, driver pre-populated entries, but rather user-added entries. So it is clear that letting drivers choose the timing of the dcb_ieee_setapp() call is inappropriate. The alternative which was chosen is to introduce hardware-specific ops in dsa_switch_ops, and effectively hide dcbnl details from drivers as well. For pre-populating the application table, dsa_slave_dcbnl_init() will call ds->ops->port_get_default_prio() which is supposed to read from hardware. If the operation succeeds, DSA creates a default-prio app table entry. The method is called as soon as the slave_dev is registered, but before we release the rtnl_mutex. This is done such that user space sees the app table entries as soon as it sees the interface being registered. The fact that we populate slave_dev->dcbnl_ops with a non-NULL pointer changes behavior in dcb_doit() from net/dcb/dcbnl.c, which used to return -EOPNOTSUPP for any dcbnl operation where netdev->dcbnl_ops is NULL. Because there are still dcbnl-unaware DSA drivers even if they have dcbnl_ops populated, the way to restore the behavior is to make all dcbnl_ops return -EOPNOTSUPP on absence of the hardware-specific dsa_switch_ops method. The dcbnl framework absurdly allows there to be more than one app table entry for the same selector and protocol (in other words, more than one port-based default priority). In the iproute2 dcb program, there is a "replace" syntactical sugar command which performs an "add" and a "del" to hide this away. But we choose the largest configured priority when we call ds->ops->port_set_default_prio(), using __fls(). When there is no default-prio app table entry left, the port-default priority is restored to 0. Link: https://patchwork.kernel.org/project/netdevbpf/patch/20210113154139.1803705-2-olteanv@gmail.com/ Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-12Merge branch '100GbE' of ↵David S. Miller1-0/+42
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== ice: GTP support in switchdev Marcin Szycik says: Add support for adding GTP-C and GTP-U filters in switchdev mode. To create a filter for GTP, create a GTP-type netdev with ip tool, enable hardware offload, add qdisc and add a filter in tc: ip link add $GTP0 type gtp role <sgsn/ggsn> hsize <hsize> ethtool -K $PF0 hw-tc-offload on tc qdisc add dev $GTP0 ingress tc filter add dev $GTP0 ingress prio 1 flower enc_key_id 1337 \ action mirred egress redirect dev $VF1_PR By default, a filter for GTP-U will be added. To add a filter for GTP-C, specify enc_dst_port = 2123, e.g.: tc filter add dev $GTP0 ingress prio 1 flower enc_key_id 1337 \ enc_dst_port 2123 action mirred egress redirect dev $VF1_PR Note: outer IPv6 offload is not supported yet. Note: GTP-U with no payload offload is not supported yet. ICE COMMS package is required to create a filter as it contains GTP profiles. Changes in iproute2 [1] are required to be able to add GTP netdev and use GTP-specific options (QFI and PDU type). [1] https://lore.kernel.org/netdev/20220211182902.11542-1-wojciech.drewek@intel.com/T --- v2: Add more CC v3: Fix mail thread, sorry for spam v4: Add GTP echo response in gtp module v5: Change patch order v6: Add GTP echo request in gtp module v7: Fix kernel-docs in ice v8: Remove handling of GTP Echo Response v9: Add sending of multicast message on GTP Echo Response, fix GTP-C dummy packet selection v10: Rebase, fixed most 80 char line limits v11: Rebase, collect Harald's Reviewed-by on patch 3 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-11net: add per-cpu storage and net->core_statsEric Dumazet1-1/+1
Before adding yet another possibly contended atomic_long_t, it is time to add per-cpu storage for existing ones: dev->tx_dropped, dev->rx_dropped, and dev->rx_nohandler Because many devices do not have to increment such counters, allocate the per-cpu storage on demand, so that dev_get_stats() does not have to spend considerable time folding zero counters. Note that some drivers have abused these counters which were supposed to be only used by core networking stack. v4: should use per_cpu_ptr() in dev_get_stats() (Jakub) v3: added a READ_ONCE() in netdev_core_stats_alloc() (Paolo) v2: add a missing include (reported by kernel test robot <lkp@intel.com>) Change in netdev_core_stats_alloc() (Jakub) Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: jeffreyji <jeffreyji@google.com> Reviewed-by: Brian Vazquez <brianvv@google.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Paolo Abeni <pabeni@redhat.com> Link: https://lore.kernel.org/r/20220311051420.2608812-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-11vsock: each transport cycles only on its own socketsJiyong Park1-1/+2
When iterating over sockets using vsock_for_each_connected_socket, make sure that a transport filters out sockets that don't belong to the transport. There actually was an issue caused by this; in a nested VM configuration, destroying the nested VM (which often involves the closing of /dev/vhost-vsock if there was h2g connections to the nested VM) kills not only the h2g connections, but also all existing g2h connections to the (outmost) host which are totally unrelated. Tested: Executed the following steps on Cuttlefish (Android running on a VM) [1]: (1) Enter into an `adb shell` session - to have a g2h connection inside the VM, (2) open and then close /dev/vhost-vsock by `exec 3< /dev/vhost-vsock && exec 3<&-`, (3) observe that the adb session is not reset. [1] https://android.googlesource.com/device/google/cuttlefish/ Fixes: c0cfa2d8a788 ("vsock: add multi-transports support") Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jiyong Park <jiyong@google.com> Link: https://lore.kernel.org/r/20220311020017.1509316-1-jiyong@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-11Merge tag 'wireless-next-2022-03-11' of ↵Jakub Kicinski2-1/+102
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== brcmfmac * add BCM43454/6 support rtw89 * add support for 160 MHz channels and 6 GHz band * hardware scan support iwlwifi * support UHB TAS enablement via BIOS * remove a bunch of W=1 warnings * add support for channel switch offload * support 32 Rx AMPDU sessions in newer devices * add support for a couple of new devices * add support for band disablement via BIOS mt76 * mt7915 thermal management improvements * SAR support for more mt76 drivers * mt7986 wmac support on mt7915 ath11k * debugfs interface to configure firmware debug log level * debugfs interface to test Target Wake Time (TWT) * provide 802.11ax High Efficiency (HE) data via radiotap ath9k * use hw_random API instead of directly dumping into random.c wcn36xx * fix wcn3660 to work on 5 GHz band ath6kl * add device ID for WLU5150-D81 cfg80211/mac80211 * initial EHT (from 802.11be) support (EHT rates, 320 MHz, larger block-ack) * support disconnect on HW restart * tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (247 commits) mac80211: Add support to trigger sta disconnect on hardware restart mac80211: fix potential double free on mesh join mac80211: correct legacy rates check in ieee80211_calc_rx_airtime nl80211: fix typo of NL80211_IF_TYPE_OCB in documentation mac80211: Use GFP_KERNEL instead of GFP_ATOMIC when possible mac80211: replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE rtw89: 8852c: process logic efuse map rtw89: 8852c: process efuse of phycap rtw89: support DAV efuse reading operation rtw89: 8852c: add chip::dle_mem rtw89: add page_regs to handle v1 chips rtw89: add chip_info::{h2c,c2h}_reg to support more chips rtw89: add hci_func_en_addr to support variant generation rtw89: add power_{on/off}_func rtw89: read chip version depends on chip ID rtw89: pci: use a struct to describe all registers address related to DMA channel rtw89: pci: add V1 of PCI channel address rtw89: pci: add struct rtw89_pci_info rtw89: 8852c: add 8852c empty files MAINTAINERS: add devicetree bindings entry for mt76 ... ==================== Link: https://lore.kernel.org/r/20220311124029.213470-1-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-11gtp: Add support for checking GTP device typeWojciech Drewek1-0/+6
Add a function that checks if a net device type is GTP. Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Reviewed-by: Harald Welte <laforge@gnumonks.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-03-11net/sched: Allow flower to match on GTP optionsWojciech Drewek1-0/+5
Options are as follows: PDU_TYPE:QFI and they refernce to the fields from the PDU Session Protocol. PDU Session data is conveyed in GTP-U Extension Header. GTP-U Extension Header is described in 3GPP TS 29.281. PDU Session Protocol is described in 3GPP TS 38.415. PDU_TYPE - indicates the type of the PDU Session Information (4 bits) QFI - QoS Flow Identifier (6 bits) # ip link add gtp_dev type gtp role sgsn # tc qdisc add dev gtp_dev ingress # tc filter add dev gtp_dev protocol ip parent ffff: \ flower \ enc_key_id 11 \ gtp_opts 1:8/ff:ff \ action mirred egress redirect dev eth0 Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-03-11gtp: Implement GTP echo responseWojciech Drewek1-0/+31
Adding GTP device through ip link creates the situation where there is no userspace daemon which would handle GTP messages (Echo Request for example). GTP-U instance which would not respond to echo requests would violate GTP specification. When GTP packet arrives with GTP_ECHO_REQ message type, GTP_ECHO_RSP is send to the sender. GTP_ECHO_RSP message should contain information element with GTPIE_RECOVERY tag and restart counter value. For GTPv1 restart counter is not used and should be equal to 0, for GTPv0 restart counter contains information provided from userspace(IFLA_GTP_RESTART_COUNT). Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Suggested-by: Harald Welte <laforge@gnumonks.org> Reviewed-by: Harald Welte <laforge@gnumonks.org> Tested-by: Harald Welte <laforge@gnumonks.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-03-11mac80211: Add support to trigger sta disconnect on hardware restartYoughandhar Chintala1-0/+10
Currently in case of target hardware restart, we just reconfig and re-enable the security keys and enable the network queues to start data traffic back from where it was interrupted. Many ath10k wifi chipsets have sequence numbers for the data packets assigned by firmware and the mac sequence number will restart from zero after target hardware restart leading to mismatch in the sequence number expected by the remote peer vs the sequence number of the frame sent by the target firmware. This mismatch in sequence number will cause out-of-order packets on the remote peer and all the frames sent by the device are dropped until we reach the sequence number which was sent before we restarted the target hardware In order to fix this, we trigger a sta disconnect, in case of target hw restart. After this there will be a fresh connection and thereby avoiding the dropping of frames by remote peer. The right fix would be to pull the entire data path into the host which is not feasible or would need lots of complex changes and will still be inefficient. Tested on ath10k using WCN3990, QCA6174 Signed-off-by: Youghandhar Chintala <youghand@codeaurora.org> Link: https://lore.kernel.org/r/20220308115325.5246-2-youghand@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-03-11powerpc/net: Implement powerpc specific csum_shift() to remove branchChristophe Leroy1-0/+2
Today's implementation of csum_shift() leads to branching based on parity of 'offset' 000002f8 <csum_block_add>: 2f8: 70 a5 00 01 andi. r5,r5,1 2fc: 41 a2 00 08 beq 304 <csum_block_add+0xc> 300: 54 84 c0 3e rotlwi r4,r4,24 304: 7c 63 20 14 addc r3,r3,r4 308: 7c 63 01 94 addze r3,r3 30c: 4e 80 00 20 blr Use first bit of 'offset' directly as input of the rotation instead of branching. 000002f8 <csum_block_add>: 2f8: 54 a5 1f 38 rlwinm r5,r5,3,28,28 2fc: 20 a5 00 20 subfic r5,r5,32 300: 5c 84 28 3e rotlw r4,r4,r5 304: 7c 63 20 14 addc r3,r3,r4 308: 7c 63 01 94 addze r3,r3 30c: 4e 80 00 20 blr And change to left shift instead of right shift to skip one more instruction. This has no impact on the final sum. 000002f8 <csum_block_add>: 2f8: 54 a5 1f 38 rlwinm r5,r5,3,28,28 2fc: 5c 84 28 3e rotlw r4,r4,r5 300: 7c 63 20 14 addc r3,r3,r4 304: 7c 63 01 94 addze r3,r3 308: 4e 80 00 20 blr Seems like only powerpc benefits from a branchless implementation. Other main architectures like ARM or X86 get better code with the generic implementation and its branch. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-0/+2
net/dsa/dsa2.c commit afb3cc1a397d ("net: dsa: unlock the rtnl_mutex when dsa_master_setup() fails") commit e83d56537859 ("net: dsa: replay master state events in dsa_tree_{setup,teardown}_master") https://lore.kernel.org/all/20220307101436.7ae87da0@canb.auug.org.au/ drivers/net/ethernet/intel/ice/ice.h commit 97b0129146b1 ("ice: Fix error with handling of bonding MTU") commit 43113ff73453 ("ice: add TTY for GNSS module for E810T device") https://lore.kernel.org/all/20220310112843.3233bcf1@canb.auug.org.au/ drivers/staging/gdm724x/gdm_lte.c commit fc7f750dc9d1 ("staging: gdm724x: fix use after free in gdm_lte_rx()") commit 4bcc4249b4cf ("staging: Use netif_rx().") https://lore.kernel.org/all/20220308111043.1018a59d@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-09tcp: adjust TSO packet sizes based on min_rttEric Dumazet1-1/+2
Back when tcp_tso_autosize() and TCP pacing were introduced, our focus was really to reduce burst sizes for long distance flows. The simple heuristic of using sk_pacing_rate/1024 has worked well, but can lead to too small packets for hosts in the same rack/cluster, when thousands of flows compete for the bottleneck. Neal Cardwell had the idea of making the TSO burst size a function of both sk_pacing_rate and tcp_min_rtt() Indeed, for local flows, sending bigger bursts is better to reduce cpu costs, as occasional losses can be repaired quite fast. This patch is based on Neal Cardwell implementation done more than two years ago. bbr is adjusting max_pacing_rate based on measured bandwidth, while cubic would over estimate max_pacing_rate. /proc/sys/net/ipv4/tcp_tso_rtt_log can be used to tune or disable this new feature, in logarithmic steps. Tested: 100Gbit NIC, two hosts in the same rack, 4K MTU. 600 flows rate-limited to 20000000 bytes per second. Before patch: (TSO sizes would be limited to 20000000/1024/4096 -> 4 segments per TSO) ~# echo 0 >/proc/sys/net/ipv4/tcp_tso_rtt_log ~# nstat -n;perf stat ./super_netperf 600 -H otrv6 -l 20 -- -K dctcp -q 20000000;nstat|egrep "TcpInSegs|TcpOutSegs|TcpRetransSegs|Delivered" 96005 Performance counter stats for './super_netperf 600 -H otrv6 -l 20 -- -K dctcp -q 20000000': 65,945.29 msec task-clock # 2.845 CPUs utilized 1,314,632 context-switches # 19935.279 M/sec 5,292 cpu-migrations # 80.249 M/sec 940,641 page-faults # 14264.023 M/sec 201,117,030,926 cycles # 3049769.216 GHz (83.45%) 17,699,435,405 stalled-cycles-frontend # 8.80% frontend cycles idle (83.48%) 136,584,015,071 stalled-cycles-backend # 67.91% backend cycles idle (83.44%) 53,809,530,436 instructions # 0.27 insn per cycle # 2.54 stalled cycles per insn (83.36%) 9,062,315,523 branches # 137422329.563 M/sec (83.22%) 153,008,621 branch-misses # 1.69% of all branches (83.32%) 23.182970846 seconds time elapsed TcpInSegs 15648792 0.0 TcpOutSegs 58659110 0.0 # Average of 3.7 4K segments per TSO packet TcpExtTCPDelivered 58654791 0.0 TcpExtTCPDeliveredCE 19 0.0 After patch: ~# echo 9 >/proc/sys/net/ipv4/tcp_tso_rtt_log ~# nstat -n;perf stat ./super_netperf 600 -H otrv6 -l 20 -- -K dctcp -q 20000000;nstat|egrep "TcpInSegs|TcpOutSegs|TcpRetransSegs|Delivered" 96046 Performance counter stats for './super_netperf 600 -H otrv6 -l 20 -- -K dctcp -q 20000000': 48,982.58 msec task-clock # 2.104 CPUs utilized 186,014 context-switches # 3797.599 M/sec 3,109 cpu-migrations # 63.472 M/sec 941,180 page-faults # 19214.814 M/sec 153,459,763,868 cycles # 3132982.807 GHz (83.56%) 12,069,861,356 stalled-cycles-frontend # 7.87% frontend cycles idle (83.32%) 120,485,917,953 stalled-cycles-backend # 78.51% backend cycles idle (83.24%) 36,803,672,106 instructions # 0.24 insn per cycle # 3.27 stalled cycles per insn (83.18%) 5,947,266,275 branches # 121417383.427 M/sec (83.64%) 87,984,616 branch-misses # 1.48% of all branches (83.43%) 23.281200256 seconds time elapsed TcpInSegs 1434706 0.0 TcpOutSegs 58883378 0.0 # Average of 41 4K segments per TSO packet TcpExtTCPDelivered 58878971 0.0 TcpExtTCPDeliveredCE 9664 0.0 Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Link: https://lore.kernel.org/r/20220309015757.2532973-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-09net/tls: Provide {__,}tls_driver_ctx() unconditionallyDimitris Michailidis1-2/+0
Having the definitions of {__,}tls_driver_ctx() under an #if guard means code referencing them also needs to rely on the preprocessor. The protection doesn't appear needed so make the definitions unconditional. Fixes: db37bc177dae ("net/funeth: add the data path") Reported-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Dimitris Michailidis <dmichail@fungible.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-09net: tcp: fix shim definition of tcp_inbound_md5_hashVladimir Oltean1-1/+1
When CONFIG_TCP_MD5SIG isn't enabled, there is a compilation bug due to the fact that the static inline definition of tcp_inbound_md5_hash() has an unexpected semicolon. Remove it. Fixes: 1330b6ef3313 ("skb: make drop reason booleanable") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20220309122012.668986-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-09Merge branch 'master' of ↵David S. Miller1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2022-03-09 1) Fix IPv6 PMTU discovery for xfrm interfaces. From Lina Wang. 2) Revert failing for policies and states that are configured with XFRMA_IF_ID 0. It broke a user configuration. From Kai Lueke. 3) Fix a possible buffer overflow in the ESP output path. 4) Fix ESP GSO for tunnel and BEET mode on inter address family tunnels. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-09skb: make drop reason booleanableJakub Kicinski1-10/+11
We have a number of cases where function returns drop/no drop decision as a boolean. Now that we want to report the reason code as well we have to pass extra output arguments. We can make the reason code evaluate correctly as bool. I believe we're good to reorder the reasons as they are reported to user space as strings. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-09net: dsa: felix: avoid early deletion of host FDB entriesVladimir Oltean1-0/+6
The Felix driver declares FDB isolation but puts all standalone ports in VID 0. This is mostly problem-free as discussed with Alvin here: https://patchwork.kernel.org/project/netdevbpf/cover/20220302191417.1288145-1-vladimir.oltean@nxp.com/#24763870 however there is one catch. DSA still thinks that FDB entries are installed on the CPU port as many times as there are user ports, and this is problematic when multiple user ports share the same MAC address. Consider the default case where all user ports inherit their MAC address from the DSA master, and then the user runs: ip link set swp0 address 00:01:02:03:04:05 The above will make dsa_slave_set_mac_address() call dsa_port_standalone_host_fdb_add() for 00:01:02:03:04:05 in port 0's standalone database, and dsa_port_standalone_host_fdb_del() for the old address of swp0, again in swp0's standalone database. Both the ->port_fdb_add() and ->port_fdb_del() will be propagated down to the felix driver, which will end up deleting the old MAC address from the CPU port. But this is still in use by other user ports, so we end up breaking unicast termination for them. There isn't a problem in the fact that DSA keeps track of host standalone addresses in the individual database of each user port: some drivers like sja1105 need this. There also isn't a problem in the fact that some drivers choose the same VID/FID for all standalone ports. It is just that the deletion of these host addresses must be delayed until they are known to not be in use any longer, and only the driver has this knowledge. Since DSA keeps these addresses in &cpu_dp->fdbs and &cpu_db->mdbs, it is just a matter of walking over those lists and see whether the same MAC address is present on the CPU port in the port db of another user port. I have considered reusing the generic dsa_port_walk_fdbs() and dsa_port_walk_mdbs() schemes for this, but locking makes it difficult. In the ->port_fdb_add() method and co, &dp->addr_lists_lock is held, but dsa_port_walk_fdbs() also acquires that lock. Also, even assuming that we introduce an unlocked variant of the address iterator, we'd still need some relatively complex data structures, and a void *ctx in the dsa_fdb_walk_cb_t which we don't currently pass, such that drivers are able to figure out, after iterating, whether the same MAC address is or isn't present in the port db of another port. All the above, plus the fact that I expect other drivers to follow the same model as felix where all standalone ports use the same FID, made me conclude that a generic method provided by DSA is necessary: dsa_fdb_present_in_other_db() and the mdb equivalent. Felix calls this from the ->port_fdb_del() handler for the CPU port, when the database was classified to either a port db, or a LAG db. For symmetry, we also call this from ->port_fdb_add(), because if the address was installed once, then installing it a second time serves no purpose: it's already in hardware in VID 0 and it affects all standalone ports. This change moves dsa_db_equal() from switch.c to dsa.c, since it now has one more caller. Fixes: 54c319846086 ("net: mscc: ocelot: enforce FDB isolation when VLAN-unaware") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>