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, 332 insertions, 0 deletions

diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
new file mode 100644
index 000000000..43be45842
--- /dev/null
+++ b/drivers/net/bonding/bond_procfs.c
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/proc_fs.h>
+#include <linux/ethtool.h>
+#include <linux/export.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+#include <net/bonding.h>
+
+#include "bonding_priv.h"
+
+static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
+	__acquires(RCU)
+{
+	struct bonding *bond = pde_data(file_inode(seq->file));
+	struct list_head *iter;
+	struct slave *slave;
+	loff_t off = 0;
+
+	rcu_read_lock();
+
+	if (*pos == 0)
+		return SEQ_START_TOKEN;
+
+	bond_for_each_slave_rcu(bond, slave, iter)
+		if (++off == *pos)
+			return slave;
+
+	return NULL;
+}
+
+static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct bonding *bond = pde_data(file_inode(seq->file));
+	struct list_head *iter;
+	struct slave *slave;
+	bool found = false;
+
+	++*pos;
+	if (v == SEQ_START_TOKEN)
+		return bond_first_slave_rcu(bond);
+
+	bond_for_each_slave_rcu(bond, slave, iter) {
+		if (found)
+			return slave;
+		if (slave == v)
+			found = true;
+	}
+
+	return NULL;
+}
+
+static void bond_info_seq_stop(struct seq_file *seq, void *v)
+	__releases(RCU)
+{
+	rcu_read_unlock();
+}
+
+static void bond_info_show_master(struct seq_file *seq)
+{
+	struct bonding *bond = pde_data(file_inode(seq->file));
+	const struct bond_opt_value *optval;
+	struct slave *curr, *primary;
+	int i;
+
+	curr = rcu_dereference(bond->curr_active_slave);
+
+	seq_printf(seq, "Bonding Mode: %s",
+		   bond_mode_name(BOND_MODE(bond)));
+
+	if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP &&
+	    bond->params.fail_over_mac) {
+		optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
+					  bond->params.fail_over_mac);
+		seq_printf(seq, " (fail_over_mac %s)", optval->string);
+	}
+
+	seq_printf(seq, "\n");
+
+	if (bond_mode_uses_xmit_hash(bond)) {
+		optval = bond_opt_get_val(BOND_OPT_XMIT_HASH,
+					  bond->params.xmit_policy);
+		seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
+			   optval->string, bond->params.xmit_policy);
+	}
+
+	if (bond_uses_primary(bond)) {
+		primary = rcu_dereference(bond->primary_slave);
+		seq_printf(seq, "Primary Slave: %s",
+			   primary ? primary->dev->name : "None");
+		if (primary) {
+			optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
+						  bond->params.primary_reselect);
+			seq_printf(seq, " (primary_reselect %s)",
+				   optval->string);
+		}
+
+		seq_printf(seq, "\nCurrently Active Slave: %s\n",
+			   (curr) ? curr->dev->name : "None");
+	}
+
+	seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
+		   "up" : "down");
+	seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
+	seq_printf(seq, "Up Delay (ms): %d\n",
+		   bond->params.updelay * bond->params.miimon);
+	seq_printf(seq, "Down Delay (ms): %d\n",
+		   bond->params.downdelay * bond->params.miimon);
+	seq_printf(seq, "Peer Notification Delay (ms): %d\n",
+		   bond->params.peer_notif_delay * bond->params.miimon);
+
+
+	/* ARP information */
+	if (bond->params.arp_interval > 0) {
+		int printed = 0;
+
+		seq_printf(seq, "ARP Polling Interval (ms): %d\n",
+				bond->params.arp_interval);
+		seq_printf(seq, "ARP Missed Max: %u\n",
+				bond->params.missed_max);
+
+		seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
+
+		for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
+			if (!bond->params.arp_targets[i])
+				break;
+			if (printed)
+				seq_printf(seq, ",");
+			seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
+			printed = 1;
+		}
+		seq_printf(seq, "\n");
+
+#if IS_ENABLED(CONFIG_IPV6)
+		printed = 0;
+		seq_printf(seq, "NS IPv6 target/s (xx::xx form):");
+
+		for (i = 0; (i < BOND_MAX_NS_TARGETS); i++) {
+			if (ipv6_addr_any(&bond->params.ns_targets[i]))
+				break;
+			if (printed)
+				seq_printf(seq, ",");
+			seq_printf(seq, " %pI6c", &bond->params.ns_targets[i]);
+			printed = 1;
+		}
+		seq_printf(seq, "\n");
+#endif
+	}
+
+	if (BOND_MODE(bond) == BOND_MODE_8023AD) {
+		struct ad_info ad_info;
+
+		seq_puts(seq, "\n802.3ad info\n");
+		seq_printf(seq, "LACP active: %s\n",
+			   (bond->params.lacp_active) ? "on" : "off");
+		seq_printf(seq, "LACP rate: %s\n",
+			   (bond->params.lacp_fast) ? "fast" : "slow");
+		seq_printf(seq, "Min links: %d\n", bond->params.min_links);
+		optval = bond_opt_get_val(BOND_OPT_AD_SELECT,
+					  bond->params.ad_select);
+		seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
+			   optval->string);
+		if (capable(CAP_NET_ADMIN)) {
+			seq_printf(seq, "System priority: %d\n",
+				   BOND_AD_INFO(bond).system.sys_priority);
+			seq_printf(seq, "System MAC address: %pM\n",
+				   &BOND_AD_INFO(bond).system.sys_mac_addr);
+
+			if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
+				seq_printf(seq,
+					   "bond %s has no active aggregator\n",
+					   bond->dev->name);
+			} else {
+				seq_printf(seq, "Active Aggregator Info:\n");
+
+				seq_printf(seq, "\tAggregator ID: %d\n",
+					   ad_info.aggregator_id);
+				seq_printf(seq, "\tNumber of ports: %d\n",
+					   ad_info.ports);
+				seq_printf(seq, "\tActor Key: %d\n",
+					   ad_info.actor_key);
+				seq_printf(seq, "\tPartner Key: %d\n",
+					   ad_info.partner_key);
+				seq_printf(seq, "\tPartner Mac Address: %pM\n",
+					   ad_info.partner_system);
+			}
+		}
+	}
+}
+
+static void bond_info_show_slave(struct seq_file *seq,
+				 const struct slave *slave)
+{
+	struct bonding *bond = pde_data(file_inode(seq->file));
+
+	seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
+	seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
+	if (slave->speed == SPEED_UNKNOWN)
+		seq_printf(seq, "Speed: %s\n", "Unknown");
+	else
+		seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
+
+	if (slave->duplex == DUPLEX_UNKNOWN)
+		seq_printf(seq, "Duplex: %s\n", "Unknown");
+	else
+		seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
+
+	seq_printf(seq, "Link Failure Count: %u\n",
+		   slave->link_failure_count);
+
+	seq_printf(seq, "Permanent HW addr: %*phC\n",
+		   slave->dev->addr_len, slave->perm_hwaddr);
+	seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
+
+	if (BOND_MODE(bond) == BOND_MODE_8023AD) {
+		const struct port *port = &SLAVE_AD_INFO(slave)->port;
+		const struct aggregator *agg = port->aggregator;
+
+		if (agg) {
+			seq_printf(seq, "Aggregator ID: %d\n",
+				   agg->aggregator_identifier);
+			seq_printf(seq, "Actor Churn State: %s\n",
+				   bond_3ad_churn_desc(port->sm_churn_actor_state));
+			seq_printf(seq, "Partner Churn State: %s\n",
+				   bond_3ad_churn_desc(port->sm_churn_partner_state));
+			seq_printf(seq, "Actor Churned Count: %d\n",
+				   port->churn_actor_count);
+			seq_printf(seq, "Partner Churned Count: %d\n",
+				   port->churn_partner_count);
+
+			if (capable(CAP_NET_ADMIN)) {
+				seq_puts(seq, "details actor lacp pdu:\n");
+				seq_printf(seq, "    system priority: %d\n",
+					   port->actor_system_priority);
+				seq_printf(seq, "    system mac address: %pM\n",
+					   &port->actor_system);
+				seq_printf(seq, "    port key: %d\n",
+					   port->actor_oper_port_key);
+				seq_printf(seq, "    port priority: %d\n",
+					   port->actor_port_priority);
+				seq_printf(seq, "    port number: %d\n",
+					   port->actor_port_number);
+				seq_printf(seq, "    port state: %d\n",
+					   port->actor_oper_port_state);
+
+				seq_puts(seq, "details partner lacp pdu:\n");
+				seq_printf(seq, "    system priority: %d\n",
+					   port->partner_oper.system_priority);
+				seq_printf(seq, "    system mac address: %pM\n",
+					   &port->partner_oper.system);
+				seq_printf(seq, "    oper key: %d\n",
+					   port->partner_oper.key);
+				seq_printf(seq, "    port priority: %d\n",
+					   port->partner_oper.port_priority);
+				seq_printf(seq, "    port number: %d\n",
+					   port->partner_oper.port_number);
+				seq_printf(seq, "    port state: %d\n",
+					   port->partner_oper.port_state);
+			}
+		} else {
+			seq_puts(seq, "Aggregator ID: N/A\n");
+		}
+	}
+}
+
+static int bond_info_seq_show(struct seq_file *seq, void *v)
+{
+	if (v == SEQ_START_TOKEN) {
+		seq_printf(seq, "%s\n", bond_version);
+		bond_info_show_master(seq);
+	} else
+		bond_info_show_slave(seq, v);
+
+	return 0;
+}
+
+static const struct seq_operations bond_info_seq_ops = {
+	.start = bond_info_seq_start,
+	.next  = bond_info_seq_next,
+	.stop  = bond_info_seq_stop,
+	.show  = bond_info_seq_show,
+};
+
+void bond_create_proc_entry(struct bonding *bond)
+{
+	struct net_device *bond_dev = bond->dev;
+	struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
+
+	if (bn->proc_dir) {
+		bond->proc_entry = proc_create_seq_data(bond_dev->name, 0444,
+				bn->proc_dir, &bond_info_seq_ops, bond);
+		if (bond->proc_entry == NULL)
+			netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
+				    DRV_NAME, bond_dev->name);
+		else
+			memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
+	}
+}
+
+void bond_remove_proc_entry(struct bonding *bond)
+{
+	struct net_device *bond_dev = bond->dev;
+	struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
+
+	if (bn->proc_dir && bond->proc_entry) {
+		remove_proc_entry(bond->proc_file_name, bn->proc_dir);
+		memset(bond->proc_file_name, 0, IFNAMSIZ);
+		bond->proc_entry = NULL;
+	}
+}
+
+/* Create the bonding directory under /proc/net, if doesn't exist yet.
+ * Caller must hold rtnl_lock.
+ */
+void __net_init bond_create_proc_dir(struct bond_net *bn)
+{
+	if (!bn->proc_dir) {
+		bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
+		if (!bn->proc_dir)
+			pr_warn("Warning: Cannot create /proc/net/%s\n",
+				DRV_NAME);
+	}
+}
+
+/* Destroy the bonding directory under /proc/net, if empty.
+ */
+void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
+{
+	if (bn->proc_dir) {
+		remove_proc_entry(DRV_NAME, bn->net->proc_net);
+		bn->proc_dir = NULL;
+	}
+}