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, 363 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_lag.c b/drivers/net/ethernet/microchip/lan966x/lan966x_lag.c
new file mode 100644
index 000000000..41fa2523d
--- /dev/null
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_lag.c
@@ -0,0 +1,363 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <linux/if_bridge.h>
+
+#include "lan966x_main.h"
+
+static void lan966x_lag_set_aggr_pgids(struct lan966x *lan966x)
+{
+	u32 visited = GENMASK(lan966x->num_phys_ports - 1, 0);
+	int p, lag, i;
+
+	/* Reset destination and aggregation PGIDS */
+	for (p = 0; p < lan966x->num_phys_ports; ++p)
+		lan_wr(ANA_PGID_PGID_SET(BIT(p)),
+		       lan966x, ANA_PGID(p));
+
+	for (p = PGID_AGGR; p < PGID_SRC; ++p)
+		lan_wr(ANA_PGID_PGID_SET(visited),
+		       lan966x, ANA_PGID(p));
+
+	/* The visited ports bitmask holds the list of ports offloading any
+	 * bonding interface. Initially we mark all these ports as unvisited,
+	 * then every time we visit a port in this bitmask, we know that it is
+	 * the lowest numbered port, i.e. the one whose logical ID == physical
+	 * port ID == LAG ID. So we mark as visited all further ports in the
+	 * bitmask that are offloading the same bonding interface. This way,
+	 * we set up the aggregation PGIDs only once per bonding interface.
+	 */
+	for (p = 0; p < lan966x->num_phys_ports; ++p) {
+		struct lan966x_port *port = lan966x->ports[p];
+
+		if (!port || !port->bond)
+			continue;
+
+		visited &= ~BIT(p);
+	}
+
+	/* Now, set PGIDs for each active LAG */
+	for (lag = 0; lag < lan966x->num_phys_ports; ++lag) {
+		struct net_device *bond = lan966x->ports[lag]->bond;
+		int num_active_ports = 0;
+		unsigned long bond_mask;
+		u8 aggr_idx[16];
+
+		if (!bond || (visited & BIT(lag)))
+			continue;
+
+		bond_mask = lan966x_lag_get_mask(lan966x, bond);
+
+		for_each_set_bit(p, &bond_mask, lan966x->num_phys_ports) {
+			struct lan966x_port *port = lan966x->ports[p];
+
+			lan_wr(ANA_PGID_PGID_SET(bond_mask),
+			       lan966x, ANA_PGID(p));
+			if (port->lag_tx_active)
+				aggr_idx[num_active_ports++] = p;
+		}
+
+		for (i = PGID_AGGR; i < PGID_SRC; ++i) {
+			u32 ac;
+
+			ac = lan_rd(lan966x, ANA_PGID(i));
+			ac &= ~bond_mask;
+			/* Don't do division by zero if there was no active
+			 * port. Just make all aggregation codes zero.
+			 */
+			if (num_active_ports)
+				ac |= BIT(aggr_idx[i % num_active_ports]);
+			lan_wr(ANA_PGID_PGID_SET(ac),
+			       lan966x, ANA_PGID(i));
+		}
+
+		/* Mark all ports in the same LAG as visited to avoid applying
+		 * the same config again.
+		 */
+		for (p = lag; p < lan966x->num_phys_ports; p++) {
+			struct lan966x_port *port = lan966x->ports[p];
+
+			if (!port)
+				continue;
+
+			if (port->bond == bond)
+				visited |= BIT(p);
+		}
+	}
+}
+
+static void lan966x_lag_set_port_ids(struct lan966x *lan966x)
+{
+	struct lan966x_port *port;
+	u32 bond_mask;
+	u32 lag_id;
+	int p;
+
+	for (p = 0; p < lan966x->num_phys_ports; ++p) {
+		port = lan966x->ports[p];
+		if (!port)
+			continue;
+
+		lag_id = port->chip_port;
+
+		bond_mask = lan966x_lag_get_mask(lan966x, port->bond);
+		if (bond_mask)
+			lag_id = __ffs(bond_mask);
+
+		lan_rmw(ANA_PORT_CFG_PORTID_VAL_SET(lag_id),
+			ANA_PORT_CFG_PORTID_VAL,
+			lan966x, ANA_PORT_CFG(port->chip_port));
+	}
+}
+
+static void lan966x_lag_update_ids(struct lan966x *lan966x)
+{
+	lan966x_lag_set_port_ids(lan966x);
+	lan966x_update_fwd_mask(lan966x);
+	lan966x_lag_set_aggr_pgids(lan966x);
+}
+
+int lan966x_lag_port_join(struct lan966x_port *port,
+			  struct net_device *brport_dev,
+			  struct net_device *bond,
+			  struct netlink_ext_ack *extack)
+{
+	struct lan966x *lan966x = port->lan966x;
+	struct net_device *dev = port->dev;
+	u32 lag_id = -1;
+	u32 bond_mask;
+	int err;
+
+	bond_mask = lan966x_lag_get_mask(lan966x, bond);
+	if (bond_mask)
+		lag_id = __ffs(bond_mask);
+
+	port->bond = bond;
+	lan966x_lag_update_ids(lan966x);
+
+	err = switchdev_bridge_port_offload(brport_dev, dev, port,
+					    &lan966x_switchdev_nb,
+					    &lan966x_switchdev_blocking_nb,
+					    false, extack);
+	if (err)
+		goto out;
+
+	lan966x_port_stp_state_set(port, br_port_get_stp_state(brport_dev));
+
+	if (lan966x_lag_first_port(port->bond, port->dev) &&
+	    lag_id != -1)
+		lan966x_mac_lag_replace_port_entry(lan966x,
+						   lan966x->ports[lag_id],
+						   port);
+
+	return 0;
+
+out:
+	port->bond = NULL;
+	lan966x_lag_update_ids(lan966x);
+
+	return err;
+}
+
+void lan966x_lag_port_leave(struct lan966x_port *port, struct net_device *bond)
+{
+	struct lan966x *lan966x = port->lan966x;
+	u32 bond_mask;
+	u32 lag_id;
+
+	if (lan966x_lag_first_port(port->bond, port->dev)) {
+		bond_mask = lan966x_lag_get_mask(lan966x, port->bond);
+		bond_mask &= ~BIT(port->chip_port);
+		if (bond_mask) {
+			lag_id = __ffs(bond_mask);
+			lan966x_mac_lag_replace_port_entry(lan966x, port,
+							   lan966x->ports[lag_id]);
+		} else {
+			lan966x_mac_lag_remove_port_entry(lan966x, port);
+		}
+	}
+
+	port->bond = NULL;
+	lan966x_lag_update_ids(lan966x);
+	lan966x_port_stp_state_set(port, BR_STATE_FORWARDING);
+}
+
+static bool lan966x_lag_port_check_hash_types(struct lan966x *lan966x,
+					      enum netdev_lag_hash hash_type)
+{
+	int p;
+
+	for (p = 0; p < lan966x->num_phys_ports; ++p) {
+		struct lan966x_port *port = lan966x->ports[p];
+
+		if (!port || !port->bond)
+			continue;
+
+		if (port->hash_type != hash_type)
+			return false;
+	}
+
+	return true;
+}
+
+int lan966x_lag_port_prechangeupper(struct net_device *dev,
+				    struct netdev_notifier_changeupper_info *info)
+{
+	struct lan966x_port *port = netdev_priv(dev);
+	struct lan966x *lan966x = port->lan966x;
+	struct netdev_lag_upper_info *lui;
+	struct netlink_ext_ack *extack;
+
+	extack = netdev_notifier_info_to_extack(&info->info);
+	lui = info->upper_info;
+	if (!lui) {
+		port->hash_type = NETDEV_LAG_HASH_NONE;
+		return NOTIFY_DONE;
+	}
+
+	if (lui->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "LAG device using unsupported Tx type");
+		return -EINVAL;
+	}
+
+	if (!lan966x_lag_port_check_hash_types(lan966x, lui->hash_type)) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "LAG devices can have only the same hash_type");
+		return -EINVAL;
+	}
+
+	switch (lui->hash_type) {
+	case NETDEV_LAG_HASH_L2:
+		lan_wr(ANA_AGGR_CFG_AC_DMAC_ENA_SET(1) |
+		       ANA_AGGR_CFG_AC_SMAC_ENA_SET(1),
+		       lan966x, ANA_AGGR_CFG);
+		break;
+	case NETDEV_LAG_HASH_L34:
+		lan_wr(ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA_SET(1) |
+		       ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA_SET(1) |
+		       ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA_SET(1),
+		       lan966x, ANA_AGGR_CFG);
+		break;
+	case NETDEV_LAG_HASH_L23:
+		lan_wr(ANA_AGGR_CFG_AC_DMAC_ENA_SET(1) |
+		       ANA_AGGR_CFG_AC_SMAC_ENA_SET(1) |
+		       ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA_SET(1) |
+		       ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA_SET(1),
+		       lan966x, ANA_AGGR_CFG);
+		break;
+	default:
+		NL_SET_ERR_MSG_MOD(extack,
+				   "LAG device using unsupported hash type");
+		return -EINVAL;
+	}
+
+	port->hash_type = lui->hash_type;
+
+	return NOTIFY_OK;
+}
+
+int lan966x_lag_port_changelowerstate(struct net_device *dev,
+				      struct netdev_notifier_changelowerstate_info *info)
+{
+	struct netdev_lag_lower_state_info *lag = info->lower_state_info;
+	struct lan966x_port *port = netdev_priv(dev);
+	struct lan966x *lan966x = port->lan966x;
+	bool is_active;
+
+	if (!port->bond)
+		return NOTIFY_DONE;
+
+	is_active = lag->link_up && lag->tx_enabled;
+	if (port->lag_tx_active == is_active)
+		return NOTIFY_DONE;
+
+	port->lag_tx_active = is_active;
+	lan966x_lag_set_aggr_pgids(lan966x);
+
+	return NOTIFY_OK;
+}
+
+int lan966x_lag_netdev_prechangeupper(struct net_device *dev,
+				      struct netdev_notifier_changeupper_info *info)
+{
+	struct lan966x_port *port;
+	struct net_device *lower;
+	struct list_head *iter;
+	int err;
+
+	netdev_for_each_lower_dev(dev, lower, iter) {
+		if (!lan966x_netdevice_check(lower))
+			continue;
+
+		port = netdev_priv(lower);
+		if (port->bond != dev)
+			continue;
+
+		err = lan966x_port_prechangeupper(lower, dev, info);
+		if (err)
+			return err;
+	}
+
+	return NOTIFY_DONE;
+}
+
+int lan966x_lag_netdev_changeupper(struct net_device *dev,
+				   struct netdev_notifier_changeupper_info *info)
+{
+	struct lan966x_port *port;
+	struct net_device *lower;
+	struct list_head *iter;
+	int err;
+
+	netdev_for_each_lower_dev(dev, lower, iter) {
+		if (!lan966x_netdevice_check(lower))
+			continue;
+
+		port = netdev_priv(lower);
+		if (port->bond != dev)
+			continue;
+
+		err = lan966x_port_changeupper(lower, dev, info);
+		if (err)
+			return err;
+	}
+
+	return NOTIFY_DONE;
+}
+
+bool lan966x_lag_first_port(struct net_device *lag, struct net_device *dev)
+{
+	struct lan966x_port *port = netdev_priv(dev);
+	struct lan966x *lan966x = port->lan966x;
+	unsigned long bond_mask;
+
+	if (port->bond != lag)
+		return false;
+
+	bond_mask = lan966x_lag_get_mask(lan966x, lag);
+	if (bond_mask && port->chip_port == __ffs(bond_mask))
+		return true;
+
+	return false;
+}
+
+u32 lan966x_lag_get_mask(struct lan966x *lan966x, struct net_device *bond)
+{
+	struct lan966x_port *port;
+	u32 mask = 0;
+	int p;
+
+	if (!bond)
+		return mask;
+
+	for (p = 0; p < lan966x->num_phys_ports; p++) {
+		port = lan966x->ports[p];
+		if (!port)
+			continue;
+
+		if (port->bond == bond)
+			mask |= BIT(p);
+	}
+
+	return mask;
+}