Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

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().
  ...

1 files changed, 312 insertions, 0 deletions

diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
new file mode 100644
index 000000000..214532173
--- /dev/null
+++ b/net/8021q/vlan_netlink.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *	VLAN netlink control interface
+ *
+ * 	Copyright (c) 2007 Patrick McHardy <kaber@trash.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/module.h>
+#include <net/net_namespace.h>
+#include <net/netlink.h>
+#include <net/rtnetlink.h>
+#include "vlan.h"
+
+
+static const struct nla_policy vlan_policy[IFLA_VLAN_MAX + 1] = {
+	[IFLA_VLAN_ID]		= { .type = NLA_U16 },
+	[IFLA_VLAN_FLAGS]	= { .len = sizeof(struct ifla_vlan_flags) },
+	[IFLA_VLAN_EGRESS_QOS]	= { .type = NLA_NESTED },
+	[IFLA_VLAN_INGRESS_QOS] = { .type = NLA_NESTED },
+	[IFLA_VLAN_PROTOCOL]	= { .type = NLA_U16 },
+};
+
+static const struct nla_policy vlan_map_policy[IFLA_VLAN_QOS_MAX + 1] = {
+	[IFLA_VLAN_QOS_MAPPING] = { .len = sizeof(struct ifla_vlan_qos_mapping) },
+};
+
+
+static inline int vlan_validate_qos_map(struct nlattr *attr)
+{
+	if (!attr)
+		return 0;
+	return nla_validate_nested_deprecated(attr, IFLA_VLAN_QOS_MAX,
+					      vlan_map_policy, NULL);
+}
+
+static int vlan_validate(struct nlattr *tb[], struct nlattr *data[],
+			 struct netlink_ext_ack *extack)
+{
+	struct ifla_vlan_flags *flags;
+	u16 id;
+	int err;
+
+	if (tb[IFLA_ADDRESS]) {
+		if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) {
+			NL_SET_ERR_MSG_MOD(extack, "Invalid link address");
+			return -EINVAL;
+		}
+		if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) {
+			NL_SET_ERR_MSG_MOD(extack, "Invalid link address");
+			return -EADDRNOTAVAIL;
+		}
+	}
+
+	if (!data) {
+		NL_SET_ERR_MSG_MOD(extack, "VLAN properties not specified");
+		return -EINVAL;
+	}
+
+	if (data[IFLA_VLAN_PROTOCOL]) {
+		switch (nla_get_be16(data[IFLA_VLAN_PROTOCOL])) {
+		case htons(ETH_P_8021Q):
+		case htons(ETH_P_8021AD):
+			break;
+		default:
+			NL_SET_ERR_MSG_MOD(extack, "Invalid VLAN protocol");
+			return -EPROTONOSUPPORT;
+		}
+	}
+
+	if (data[IFLA_VLAN_ID]) {
+		id = nla_get_u16(data[IFLA_VLAN_ID]);
+		if (id >= VLAN_VID_MASK) {
+			NL_SET_ERR_MSG_MOD(extack, "Invalid VLAN id");
+			return -ERANGE;
+		}
+	}
+	if (data[IFLA_VLAN_FLAGS]) {
+		flags = nla_data(data[IFLA_VLAN_FLAGS]);
+		if ((flags->flags & flags->mask) &
+		    ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
+		      VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP |
+		      VLAN_FLAG_BRIDGE_BINDING)) {
+			NL_SET_ERR_MSG_MOD(extack, "Invalid VLAN flags");
+			return -EINVAL;
+		}
+	}
+
+	err = vlan_validate_qos_map(data[IFLA_VLAN_INGRESS_QOS]);
+	if (err < 0) {
+		NL_SET_ERR_MSG_MOD(extack, "Invalid ingress QOS map");
+		return err;
+	}
+	err = vlan_validate_qos_map(data[IFLA_VLAN_EGRESS_QOS]);
+	if (err < 0) {
+		NL_SET_ERR_MSG_MOD(extack, "Invalid egress QOS map");
+		return err;
+	}
+	return 0;
+}
+
+static int vlan_changelink(struct net_device *dev, struct nlattr *tb[],
+			   struct nlattr *data[],
+			   struct netlink_ext_ack *extack)
+{
+	struct ifla_vlan_flags *flags;
+	struct ifla_vlan_qos_mapping *m;
+	struct nlattr *attr;
+	int rem, err;
+
+	if (data[IFLA_VLAN_FLAGS]) {
+		flags = nla_data(data[IFLA_VLAN_FLAGS]);
+		err = vlan_dev_change_flags(dev, flags->flags, flags->mask);
+		if (err)
+			return err;
+	}
+	if (data[IFLA_VLAN_INGRESS_QOS]) {
+		nla_for_each_nested(attr, data[IFLA_VLAN_INGRESS_QOS], rem) {
+			m = nla_data(attr);
+			vlan_dev_set_ingress_priority(dev, m->to, m->from);
+		}
+	}
+	if (data[IFLA_VLAN_EGRESS_QOS]) {
+		nla_for_each_nested(attr, data[IFLA_VLAN_EGRESS_QOS], rem) {
+			m = nla_data(attr);
+			err = vlan_dev_set_egress_priority(dev, m->from, m->to);
+			if (err)
+				return err;
+		}
+	}
+	return 0;
+}
+
+static int vlan_newlink(struct net *src_net, struct net_device *dev,
+			struct nlattr *tb[], struct nlattr *data[],
+			struct netlink_ext_ack *extack)
+{
+	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
+	struct net_device *real_dev;
+	unsigned int max_mtu;
+	__be16 proto;
+	int err;
+
+	if (!data[IFLA_VLAN_ID]) {
+		NL_SET_ERR_MSG_MOD(extack, "VLAN id not specified");
+		return -EINVAL;
+	}
+
+	if (!tb[IFLA_LINK]) {
+		NL_SET_ERR_MSG_MOD(extack, "link not specified");
+		return -EINVAL;
+	}
+
+	real_dev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
+	if (!real_dev) {
+		NL_SET_ERR_MSG_MOD(extack, "link does not exist");
+		return -ENODEV;
+	}
+
+	if (data[IFLA_VLAN_PROTOCOL])
+		proto = nla_get_be16(data[IFLA_VLAN_PROTOCOL]);
+	else
+		proto = htons(ETH_P_8021Q);
+
+	vlan->vlan_proto = proto;
+	vlan->vlan_id	 = nla_get_u16(data[IFLA_VLAN_ID]);
+	vlan->real_dev	 = real_dev;
+	dev->priv_flags |= (real_dev->priv_flags & IFF_XMIT_DST_RELEASE);
+	vlan->flags	 = VLAN_FLAG_REORDER_HDR;
+
+	err = vlan_check_real_dev(real_dev, vlan->vlan_proto, vlan->vlan_id,
+				  extack);
+	if (err < 0)
+		return err;
+
+	max_mtu = netif_reduces_vlan_mtu(real_dev) ? real_dev->mtu - VLAN_HLEN :
+						     real_dev->mtu;
+	if (!tb[IFLA_MTU])
+		dev->mtu = max_mtu;
+	else if (dev->mtu > max_mtu)
+		return -EINVAL;
+
+	/* Note: If this initial vlan_changelink() fails, we need
+	 * to call vlan_dev_free_egress_priority() to free memory.
+	 */
+	err = vlan_changelink(dev, tb, data, extack);
+
+	if (!err)
+		err = register_vlan_dev(dev, extack);
+
+	if (err)
+		vlan_dev_free_egress_priority(dev);
+	return err;
+}
+
+static inline size_t vlan_qos_map_size(unsigned int n)
+{
+	if (n == 0)
+		return 0;
+	/* IFLA_VLAN_{EGRESS,INGRESS}_QOS + n * IFLA_VLAN_QOS_MAPPING */
+	return nla_total_size(sizeof(struct nlattr)) +
+	       nla_total_size(sizeof(struct ifla_vlan_qos_mapping)) * n;
+}
+
+static size_t vlan_get_size(const struct net_device *dev)
+{
+	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
+
+	return nla_total_size(2) +	/* IFLA_VLAN_PROTOCOL */
+	       nla_total_size(2) +	/* IFLA_VLAN_ID */
+	       nla_total_size(sizeof(struct ifla_vlan_flags)) + /* IFLA_VLAN_FLAGS */
+	       vlan_qos_map_size(vlan->nr_ingress_mappings) +
+	       vlan_qos_map_size(vlan->nr_egress_mappings);
+}
+
+static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
+	struct vlan_priority_tci_mapping *pm;
+	struct ifla_vlan_flags f;
+	struct ifla_vlan_qos_mapping m;
+	struct nlattr *nest;
+	unsigned int i;
+
+	if (nla_put_be16(skb, IFLA_VLAN_PROTOCOL, vlan->vlan_proto) ||
+	    nla_put_u16(skb, IFLA_VLAN_ID, vlan->vlan_id))
+		goto nla_put_failure;
+	if (vlan->flags) {
+		f.flags = vlan->flags;
+		f.mask  = ~0;
+		if (nla_put(skb, IFLA_VLAN_FLAGS, sizeof(f), &f))
+			goto nla_put_failure;
+	}
+	if (vlan->nr_ingress_mappings) {
+		nest = nla_nest_start_noflag(skb, IFLA_VLAN_INGRESS_QOS);
+		if (nest == NULL)
+			goto nla_put_failure;
+
+		for (i = 0; i < ARRAY_SIZE(vlan->ingress_priority_map); i++) {
+			if (!vlan->ingress_priority_map[i])
+				continue;
+
+			m.from = i;
+			m.to   = vlan->ingress_priority_map[i];
+			if (nla_put(skb, IFLA_VLAN_QOS_MAPPING,
+				    sizeof(m), &m))
+				goto nla_put_failure;
+		}
+		nla_nest_end(skb, nest);
+	}
+
+	if (vlan->nr_egress_mappings) {
+		nest = nla_nest_start_noflag(skb, IFLA_VLAN_EGRESS_QOS);
+		if (nest == NULL)
+			goto nla_put_failure;
+
+		for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
+			for (pm = vlan->egress_priority_map[i]; pm;
+			     pm = pm->next) {
+				if (!pm->vlan_qos)
+					continue;
+
+				m.from = pm->priority;
+				m.to   = (pm->vlan_qos >> 13) & 0x7;
+				if (nla_put(skb, IFLA_VLAN_QOS_MAPPING,
+					    sizeof(m), &m))
+					goto nla_put_failure;
+			}
+		}
+		nla_nest_end(skb, nest);
+	}
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static struct net *vlan_get_link_net(const struct net_device *dev)
+{
+	struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
+
+	return dev_net(real_dev);
+}
+
+struct rtnl_link_ops vlan_link_ops __read_mostly = {
+	.kind		= "vlan",
+	.maxtype	= IFLA_VLAN_MAX,
+	.policy		= vlan_policy,
+	.priv_size	= sizeof(struct vlan_dev_priv),
+	.setup		= vlan_setup,
+	.validate	= vlan_validate,
+	.newlink	= vlan_newlink,
+	.changelink	= vlan_changelink,
+	.dellink	= unregister_vlan_dev,
+	.get_size	= vlan_get_size,
+	.fill_info	= vlan_fill_info,
+	.get_link_net	= vlan_get_link_net,
+};
+
+int __init vlan_netlink_init(void)
+{
+	return rtnl_link_register(&vlan_link_ops);
+}
+
+void __exit vlan_netlink_fini(void)
+{
+	rtnl_link_unregister(&vlan_link_ops);
+}
+
+MODULE_ALIAS_RTNL_LINK("vlan");