Pull networking updates from Paolo Abeni: "Core: - Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the default value allows for better BIG TCP performances - Reduce compound page head access for zero-copy data transfers - RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when possible - Threaded NAPI improvements, adding defer skb free support and unneeded softirq avoidance - Address dst_entry reference count scalability issues, via false sharing avoidance and optimize refcount tracking - Add lockless accesses annotation to sk_err[_soft] - Optimize again the skb struct layout - Extends the skb drop reasons to make it usable by multiple subsystems - Better const qualifier awareness for socket casts BPF: - Add skb and XDP typed dynptrs which allow BPF programs for more ergonomic and less brittle iteration through data and variable-sized accesses - Add a new BPF netfilter program type and minimal support to hook BPF programs to netfilter hooks such as prerouting or forward - Add more precise memory usage reporting for all BPF map types - Adds support for using {FOU,GUE} encap with an ipip device operating in collect_md mode and add a set of BPF kfuncs for controlling encap params - Allow BPF programs to detect at load time whether a particular kfunc exists or not, and also add support for this in light skeleton - Bigger batch of BPF verifier improvements to prepare for upcoming BPF open-coded iterators allowing for less restrictive looping capabilities - Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF programs to NULL-check before passing such pointers into kfunc - Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in local storage maps - Enable RCU semantics for task BPF kptrs and allow referenced kptr tasks to be stored in BPF maps - Add support for refcounted local kptrs to the verifier for allowing shared ownership, useful for adding a node to both the BPF list and rbtree - Add BPF verifier support for ST instructions in convert_ctx_access() which will help new -mcpu=v4 clang flag to start emitting them - Add ARM32 USDT support to libbpf - Improve bpftool's visual program dump which produces the control flow graph in a DOT format by adding C source inline annotations Protocols: - IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value indicates the provenance of the IP address - IPv6: optimize route lookup, dropping unneeded R/W lock acquisition - Add the handshake upcall mechanism, allowing the user-space to implement generic TLS handshake on kernel's behalf - Bridge: support per-{Port, VLAN} neighbor suppression, increasing resilience to nodes failures - SCTP: add support for Fair Capacity and Weighted Fair Queueing schedulers - MPTCP: delay first subflow allocation up to its first usage. This will allow for later better LSM interaction - xfrm: Remove inner/outer modes from input/output path. These are not needed anymore - WiFi: - reduced neighbor report (RNR) handling for AP mode - HW timestamping support - support for randomized auth/deauth TA for PASN privacy - per-link debugfs for multi-link - TC offload support for mac80211 drivers - mac80211 mesh fast-xmit and fast-rx support - enable Wi-Fi 7 (EHT) mesh support Netfilter: - Add nf_tables 'brouting' support, to force a packet to be routed instead of being bridged - Update bridge netfilter and ovs conntrack helpers to handle IPv6 Jumbo packets properly, i.e. fetch the packet length from hop-by-hop extension header. This is needed for BIT TCP support - The iptables 32bit compat interface isn't compiled in by default anymore - Move ip(6)tables builtin icmp matches to the udptcp one. This has the advantage that icmp/icmpv6 match doesn't load the iptables/ip6tables modules anymore when iptables-nft is used - Extended netlink error report for netdevice in flowtables and netdev/chains. Allow for incrementally add/delete devices to netdev basechain. Allow to create netdev chain without device Driver API: - Remove redundant Device Control Error Reporting Enable, as PCI core has already error reporting enabled at enumeration time - Move Multicast DB netlink handlers to core, allowing devices other then bridge to use them - Allow the page_pool to directly recycle the pages from safely localized NAPI - Implement lockless TX queue stop/wake combo macros, allowing for further code de-duplication and sanitization - Add YNL support for user headers and struct attrs - Add partial YNL specification for devlink - Add partial YNL specification for ethtool - Add tc-mqprio and tc-taprio support for preemptible traffic classes - Add tx push buf len param to ethtool, specifies the maximum number of bytes of a transmitted packet a driver can push directly to the underlying device - Add basic LED support for switch/phy - Add NAPI documentation, stop relaying on external links - Convert dsa_master_ioctl() to netdev notifier. This is a preparatory work to make the hardware timestamping layer selectable by user space - Add transceiver support and improve the error messages for CAN-FD controllers New hardware / drivers: - Ethernet: - AMD/Pensando core device support - MediaTek MT7981 SoC - MediaTek MT7988 SoC - Broadcom BCM53134 embedded switch - Texas Instruments CPSW9G ethernet switch - Qualcomm EMAC3 DWMAC ethernet - StarFive JH7110 SoC - NXP CBTX ethernet PHY - WiFi: - Apple M1 Pro/Max devices - RealTek rtl8710bu/rtl8188gu - RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset - Bluetooth: - Realtek RTL8821CS, RTL8851B, RTL8852BS - Mediatek MT7663, MT7922 - NXP w8997 - Actions Semi ATS2851 - QTI WCN6855 - Marvell 88W8997 - Can: - STMicroelectronics bxcan stm32f429 Drivers: - Ethernet NICs: - Intel (1G, icg): - add tracking and reporting of QBV config errors - add support for configuring max SDU for each Tx queue - Intel (100G, ice): - refactor mailbox overflow detection to support Scalable IOV - GNSS interface optimization - Intel (i40e): - support XDP multi-buffer - nVidia/Mellanox: - add the support for linux bridge multicast offload - enable TC offload for egress and engress MACVLAN over bond - add support for VxLAN GBP encap/decap flows offload - extend packet offload to fully support libreswan - support tunnel mode in mlx5 IPsec packet offload - extend XDP multi-buffer support - support MACsec VLAN offload - add support for dynamic msix vectors allocation - drop RX page_cache and fully use page_pool - implement thermal zone to report NIC temperature - Netronome/Corigine: - add support for multi-zone conntrack offload - Solarflare/Xilinx: - support offloading TC VLAN push/pop actions to the MAE - support TC decap rules - support unicast PTP - Other NICs: - Broadcom (bnxt): enforce software based freq adjustments only on shared PHC NIC - RealTek (r8169): refactor to addess ASPM issues during NAPI poll - Micrel (lan8841): add support for PTP_PF_PEROUT - Cadence (macb): enable PTP unicast - Engleder (tsnep): add XDP socket zero-copy support - virtio-net: implement exact header length guest feature - veth: add page_pool support for page recycling - vxlan: add MDB data path support - gve: add XDP support for GQI-QPL format - geneve: accept every ethertype - macvlan: allow some packets to bypass broadcast queue - mana: add support for jumbo frame - Ethernet high-speed switches: - Microchip (sparx5): Add support for TC flower templates - Ethernet embedded switches: - Broadcom (b54): - configure 6318 and 63268 RGMII ports - Marvell (mv88e6xxx): - faster C45 bus scan - Microchip: - lan966x: - add support for IS1 VCAP - better TX/RX from/to CPU performances - ksz9477: add ETS Qdisc support - ksz8: enhance static MAC table operations and error handling - sama7g5: add PTP capability - NXP (ocelot): - add support for external ports - add support for preemptible traffic classes - Texas Instruments: - add CPSWxG SGMII support for J7200 and J721E - Intel WiFi (iwlwifi): - preparation for Wi-Fi 7 EHT and multi-link support - EHT (Wi-Fi 7) sniffer support - hardware timestamping support for some devices/firwmares - TX beacon protection on newer hardware - Qualcomm 802.11ax WiFi (ath11k): - MU-MIMO parameters support - ack signal support for management packets - RealTek WiFi (rtw88): - SDIO bus support - better support for some SDIO devices (e.g. MAC address from efuse) - RealTek WiFi (rtw89): - HW scan support for 8852b - better support for 6 GHz scanning - support for various newer firmware APIs - framework firmware backwards compatibility - MediaTek WiFi (mt76): - P2P support - mesh A-MSDU support - EHT (Wi-Fi 7) support - coredump support" * tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2078 commits) net: phy: hide the PHYLIB_LEDS knob net: phy: marvell-88x2222: remove unnecessary (void*) conversions tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. net: amd: Fix link leak when verifying config failed net: phy: marvell: Fix inconsistent indenting in led_blink_set lan966x: Don't use xdp_frame when action is XDP_TX tsnep: Add XDP socket zero-copy TX support tsnep: Add XDP socket zero-copy RX support tsnep: Move skb receive action to separate function tsnep: Add functions for queue enable/disable tsnep: Rework TX/RX queue initialization tsnep: Replace modulo operation with mask net: phy: dp83867: Add led_brightness_set support net: phy: Fix reading LED reg property drivers: nfc: nfcsim: remove return value check of `dev_dir` net: phy: dp83867: Remove unnecessary (void*) conversions net: ethtool: coalesce: try to make user settings stick twice net: mana: Check if netdev/napi_alloc_frag returns single page net: mana: Rename mana_refill_rxoob and remove some empty lines net: veth: add page_pool stats ...
Showing the changes to tools/include/uapi (2 of 1925 files). Show all
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| @@ -986,6 +986,7 @@ enum bpf_prog_type { · 985 unmodified lines | ||
| 986 | 986 | BPF_PROG_TYPE_LSM, |
| 987 | 987 | BPF_PROG_TYPE_SK_LOOKUP, |
| 988 | 988 | BPF_PROG_TYPE_SYSCALL, /* a program that can execute syscalls */ |
| 989 | + BPF_PROG_TYPE_NETFILTER, | |
| 989 | 990 | }; |
| 990 | 991 | |
| 991 | 992 | enum bpf_attach_type { |
| @@ -1033,6 +1034,7 @@ enum bpf_attach_type { · 41 unmodified lines | ||
| 1033 | 1034 | BPF_PERF_EVENT, |
| 1034 | 1035 | BPF_TRACE_KPROBE_MULTI, |
| 1035 | 1036 | BPF_LSM_CGROUP, |
| 1037 | + BPF_STRUCT_OPS, | |
| 1036 | 1038 | __MAX_BPF_ATTACH_TYPE |
| 1037 | 1039 | }; |
| 1038 | 1040 | |
| @@ -1049,6 +1051,7 @@ enum bpf_link_type { · 10 unmodified lines | ||
| 1049 | 1051 | BPF_LINK_TYPE_PERF_EVENT = 7, |
| 1050 | 1052 | BPF_LINK_TYPE_KPROBE_MULTI = 8, |
| 1051 | 1053 | BPF_LINK_TYPE_STRUCT_OPS = 9, |
| 1054 | + BPF_LINK_TYPE_NETFILTER = 10, | |
| 1052 | 1055 | |
| 1053 | 1056 | MAX_BPF_LINK_TYPE, |
| 1054 | 1057 | }; |
| @@ -1108,7 +1111,7 @@ enum bpf_link_type { · 53 unmodified lines | ||
| 1108 | 1111 | */ |
| 1109 | 1112 | #define BPF_F_STRICT_ALIGNMENT (1U << 0) |
| 1110 | 1113 | |
| 1111 | −/* If BPF_F_ANY_ALIGNMENT is used in BPF_PROF_LOAD command, the | |
| 1114 | +/* If BPF_F_ANY_ALIGNMENT is used in BPF_PROG_LOAD command, the | |
| 1112 | 1115 | * verifier will allow any alignment whatsoever. On platforms |
| 1113 | 1116 | * with strict alignment requirements for loads ands stores (such |
| 1114 | 1117 | * as sparc and mips) the verifier validates that all loads and |
| @@ -1266,6 +1269,9 @@ enum { · 151 unmodified lines | ||
| 1266 | 1269 | |
| 1267 | 1270 | /* Create a map that is suitable to be an inner map with dynamic max entries */ |
| 1268 | 1271 | BPF_F_INNER_MAP = (1U << 12), |
| 1272 | + | |
| 1273 | +/* Create a map that will be registered/unregesitered by the backed bpf_link */ | |
| 1274 | + BPF_F_LINK = (1U << 13), | |
| 1269 | 1275 | }; |
| 1270 | 1276 | |
| 1271 | 1277 | /* Flags for BPF_PROG_QUERY. */ |
| @@ -1403,6 +1409,11 @@ union bpf_attr { · 131 unmodified lines | ||
| 1403 | 1409 | __aligned_u64 fd_array; /* array of FDs */ |
| 1404 | 1410 | __aligned_u64 core_relos; |
| 1405 | 1411 | __u32 core_relo_rec_size; /* sizeof(struct bpf_core_relo) */ |
| 1412 | + /* output: actual total log contents size (including termintaing zero). | |
| 1413 | + * It could be both larger than original log_size (if log was | |
| 1414 | + * truncated), or smaller (if log buffer wasn't filled completely). | |
| 1415 | + */ | |
| 1416 | + __u32 log_true_size; | |
| 1406 | 1417 | }; |
| 1407 | 1418 | |
| 1408 | 1419 | struct { /* anonymous struct used by BPF_OBJ_* commands */ |
| @@ -1488,6 +1499,11 @@ union bpf_attr { · 79 unmodified lines | ||
| 1488 | 1499 | __u32 btf_size; |
| 1489 | 1500 | __u32 btf_log_size; |
| 1490 | 1501 | __u32 btf_log_level; |
| 1502 | + /* output: actual total log contents size (including termintaing zero). | |
| 1503 | + * It could be both larger than original log_size (if log was | |
| 1504 | + * truncated), or smaller (if log buffer wasn't filled completely). | |
| 1505 | + */ | |
| 1506 | + __u32 btf_log_true_size; | |
| 1491 | 1507 | }; |
| 1492 | 1508 | |
| 1493 | 1509 | struct { |
| @@ -1507,7 +1523,10 @@ union bpf_attr { · 13 unmodified lines | ||
| 1507 | 1523 | } task_fd_query; |
| 1508 | 1524 | |
| 1509 | 1525 | struct { /* struct used by BPF_LINK_CREATE command */ |
| 1510 | − __u32 prog_fd; /* eBPF program to attach */ | |
| 1526 | + union { | |
| 1527 | + __u32 prog_fd; /* eBPF program to attach */ | |
| 1528 | + __u32 map_fd; /* struct_ops to attach */ | |
| 1529 | + }; | |
| 1511 | 1530 | union { |
| 1512 | 1531 | __u32 target_fd; /* object to attach to */ |
| 1513 | 1532 | __u32 target_ifindex; /* target ifindex */ |
| @@ -1543,17 +1562,34 @@ union bpf_attr { · 29 unmodified lines | ||
| 1543 | 1562 | */ |
| 1544 | 1563 | __u64 cookie; |
| 1545 | 1564 | } tracing; |
| 1565 | + struct { | |
| 1566 | + __u32 pf; | |
| 1567 | + __u32 hooknum; | |
| 1568 | + __s32 priority; | |
| 1569 | + __u32 flags; | |
| 1570 | + } netfilter; | |
| 1546 | 1571 | }; |
| 1547 | 1572 | } link_create; |
| 1548 | 1573 | |
| 1549 | 1574 | struct { /* struct used by BPF_LINK_UPDATE command */ |
| 1550 | 1575 | __u32 link_fd; /* link fd */ |
| 1551 | − /* new program fd to update link with */ | |
| 1552 | − __u32 new_prog_fd; | |
| 1576 | + union { | |
| 1577 | + /* new program fd to update link with */ | |
| 1578 | + __u32 new_prog_fd; | |
| 1579 | + /* new struct_ops map fd to update link with */ | |
| 1580 | + __u32 new_map_fd; | |
| 1581 | + }; | |
| 1553 | 1582 | __u32 flags; /* extra flags */ |
| 1554 | − /* expected link's program fd; is specified only if | |
| 1555 | − * BPF_F_REPLACE flag is set in flags */ | |
| 1556 | − __u32 old_prog_fd; | |
| 1583 | + union { | |
| 1584 | + /* expected link's program fd; is specified only if | |
| 1585 | + * BPF_F_REPLACE flag is set in flags. | |
| 1586 | + */ | |
| 1587 | + __u32 old_prog_fd; | |
| 1588 | + /* expected link's map fd; is specified only | |
| 1589 | + * if BPF_F_REPLACE flag is set. | |
| 1590 | + */ | |
| 1591 | + __u32 old_map_fd; | |
| 1592 | + }; | |
| 1557 | 1593 | } link_update; |
| 1558 | 1594 | |
| 1559 | 1595 | struct { |
| @@ -1647,17 +1683,17 @@ union bpf_attr { · 87 unmodified lines | ||
| 1647 | 1683 | * Description |
| 1648 | 1684 | * This helper is a "printk()-like" facility for debugging. It |
| 1649 | 1685 | * prints a message defined by format *fmt* (of size *fmt_size*) |
| 1650 | − * to file *\/sys/kernel/debug/tracing/trace* from DebugFS, if | |
| 1686 | + * to file *\/sys/kernel/tracing/trace* from TraceFS, if | |
| 1651 | 1687 | * available. It can take up to three additional **u64** |
| 1652 | 1688 | * arguments (as an eBPF helpers, the total number of arguments is |
| 1653 | 1689 | * limited to five). |
| 1654 | 1690 | * |
| 1655 | 1691 | * Each time the helper is called, it appends a line to the trace. |
| 1656 | − * Lines are discarded while *\/sys/kernel/debug/tracing/trace* is | |
| 1657 | − * open, use *\/sys/kernel/debug/tracing/trace_pipe* to avoid this. | |
| 1692 | + * Lines are discarded while *\/sys/kernel/tracing/trace* is | |
| 1693 | + * open, use *\/sys/kernel/tracing/trace_pipe* to avoid this. | |
| 1658 | 1694 | * The format of the trace is customizable, and the exact output |
| 1659 | 1695 | * one will get depends on the options set in |
| 1660 | − * *\/sys/kernel/debug/tracing/trace_options* (see also the | |
| 1696 | + * *\/sys/kernel/tracing/trace_options* (see also the | |
| 1661 | 1697 | * *README* file under the same directory). However, it usually |
| 1662 | 1698 | * defaults to something like: |
| 1663 | 1699 | * |
| @@ -4969,6 +5005,12 @@ union bpf_attr { · 3305 unmodified lines | ||
| 4969 | 5005 | * different maps if key/value layout matches across maps. |
| 4970 | 5006 | * Every bpf_timer_set_callback() can have different callback_fn. |
| 4971 | 5007 | * |
| 5008 | + * *flags* can be one of: | |
| 5009 | + * | |
| 5010 | + * **BPF_F_TIMER_ABS** | |
| 5011 | + * Start the timer in absolute expire value instead of the | |
| 5012 | + * default relative one. | |
| 5013 | + * | |
| 4972 | 5014 | * Return |
| 4973 | 5015 | * 0 on success. |
| 4974 | 5016 | * **-EINVAL** if *timer* was not initialized with bpf_timer_init() earlier |
| @@ -5325,11 +5367,22 @@ union bpf_attr { · 350 unmodified lines | ||
| 5325 | 5367 | * Description |
| 5326 | 5368 | * Write *len* bytes from *src* into *dst*, starting from *offset* |
| 5327 | 5369 | * into *dst*. |
| 5328 | − * *flags* is currently unused. | |
| 5370 | + * | |
| 5371 | + * *flags* must be 0 except for skb-type dynptrs. | |
| 5372 | + * | |
| 5373 | + * For skb-type dynptrs: | |
| 5374 | + * * All data slices of the dynptr are automatically | |
| 5375 | + * invalidated after **bpf_dynptr_write**\ (). This is | |
| 5376 | + * because writing may pull the skb and change the | |
| 5377 | + * underlying packet buffer. | |
| 5378 | + * | |
| 5379 | + * * For *flags*, please see the flags accepted by | |
| 5380 | + * **bpf_skb_store_bytes**\ (). | |
| 5329 | 5381 | * Return |
| 5330 | 5382 | * 0 on success, -E2BIG if *offset* + *len* exceeds the length |
| 5331 | 5383 | * of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst* |
| 5332 | − * is a read-only dynptr or if *flags* is not 0. | |
| 5384 | + * is a read-only dynptr or if *flags* is not correct. For skb-type dynptrs, | |
| 5385 | + * other errors correspond to errors returned by **bpf_skb_store_bytes**\ (). | |
| 5333 | 5386 | * |
| 5334 | 5387 | * void *bpf_dynptr_data(const struct bpf_dynptr *ptr, u32 offset, u32 len) |
| 5335 | 5388 | * Description |
| @@ -5337,6 +5390,9 @@ union bpf_attr { · 1 unmodified line | ||
| 5337 | 5390 | * |
| 5338 | 5391 | * *len* must be a statically known value. The returned data slice |
| 5339 | 5392 | * is invalidated whenever the dynptr is invalidated. |
| 5393 | + * | |
| 5394 | + * skb and xdp type dynptrs may not use bpf_dynptr_data. They should | |
| 5395 | + * instead use bpf_dynptr_slice and bpf_dynptr_slice_rdwr. | |
| 5340 | 5396 | * Return |
| 5341 | 5397 | * Pointer to the underlying dynptr data, NULL if the dynptr is |
| 5342 | 5398 | * read-only, if the dynptr is invalid, or if the offset and length |
| @@ -6359,6 +6415,15 @@ struct bpf_link_info { · 1016 unmodified lines | ||
| 6359 | 6415 | struct { |
| 6360 | 6416 | __u32 ifindex; |
| 6361 | 6417 | } xdp; |
| 6418 | + struct { | |
| 6419 | + __u32 map_id; | |
| 6420 | + } struct_ops; | |
| 6421 | + struct { | |
| 6422 | + __u32 pf; | |
| 6423 | + __u32 hooknum; | |
| 6424 | + __s32 priority; | |
| 6425 | + __u32 flags; | |
| 6426 | + } netfilter; | |
| 6362 | 6427 | }; |
| 6363 | 6428 | } __attribute__((aligned(8))); |
| 6364 | 6429 | |
| @@ -6934,6 +6999,10 @@ struct bpf_rb_node { · 569 unmodified lines | ||
| 6934 | 6999 | __u64 :64; |
| 6935 | 7000 | } __attribute__((aligned(8))); |
| 6936 | 7001 | |
| 7002 | +struct bpf_refcount { | |
| 7003 | + __u32 :32; | |
| 7004 | +} __attribute__((aligned(4))); | |
| 7005 | + | |
| 6937 | 7006 | struct bpf_sysctl { |
| 6938 | 7007 | __u32 write; /* Sysctl is being read (= 0) or written (= 1). |
| 6939 | 7008 | * Allows 1,2,4-byte read, but no write. |
| @@ -7083,4 +7152,21 @@ struct bpf_core_relo { · 143 unmodified lines | ||
| 7083 | 7152 | enum bpf_core_relo_kind kind; |
| 7084 | 7153 | }; |
| 7085 | 7154 | |
| 7155 | +/* | |
| 7156 | + * Flags to control bpf_timer_start() behaviour. | |
| 7157 | + * - BPF_F_TIMER_ABS: Timeout passed is absolute time, by default it is | |
| 7158 | + * relative to current time. | |
| 7159 | + */ | |
| 7160 | +enum { | |
| 7161 | + BPF_F_TIMER_ABS = (1ULL << 0), | |
| 7162 | +}; | |
| 7163 | + | |
| 7164 | +/* BPF numbers iterator state */ | |
| 7165 | +struct bpf_iter_num { | |
| 7166 | + /* opaque iterator state; having __u64 here allows to preserve correct | |
| 7167 | + * alignment requirements in vmlinux.h, generated from BTF | |
| 7168 | + */ | |
| 7169 | + __u64 __opaque[1]; | |
| 7170 | +} __attribute__((aligned(8))); | |
| 7171 | + | |
| 7086 | 7172 | #endif /* _UAPI__LINUX_BPF_H__ */ |
| @@ -605,6 +605,7 @@ enum { · 604 unmodified lines | ||
| 605 | 605 | IFLA_MACVLAN_MACADDR_COUNT, |
| 606 | 606 | IFLA_MACVLAN_BC_QUEUE_LEN, |
| 607 | 607 | IFLA_MACVLAN_BC_QUEUE_LEN_USED, |
| 608 | + IFLA_MACVLAN_BC_CUTOFF, | |
| 608 | 609 | __IFLA_MACVLAN_MAX, |
| 609 | 610 | }; |
| 610 | 611 | |