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, 250 insertions, 0 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb/mv88x201x.c b/drivers/net/ethernet/chelsio/cxgb/mv88x201x.c
new file mode 100644
index 000000000..556c8ad68
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb/mv88x201x.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*****************************************************************************
+ *                                                                           *
+ * File: mv88x201x.c                                                         *
+ * $Revision: 1.12 $                                                         *
+ * $Date: 2005/04/15 19:27:14 $                                              *
+ * Description:                                                              *
+ *  Marvell PHY (mv88x201x) functionality.                                   *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "cphy.h"
+#include "elmer0.h"
+
+/*
+ * The 88x2010 Rev C. requires some link status registers * to be read
+ * twice in order to get the right values. Future * revisions will fix
+ * this problem and then this macro * can disappear.
+ */
+#define MV88x2010_LINK_STATUS_BUGS    1
+
+static int led_init(struct cphy *cphy)
+{
+	/* Setup the LED registers so we can turn on/off.
+	 * Writing these bits maps control to another
+	 * register. mmd(0x1) addr(0x7)
+	 */
+	cphy_mdio_write(cphy, MDIO_MMD_PCS, 0x8304, 0xdddd);
+	return 0;
+}
+
+static int led_link(struct cphy *cphy, u32 do_enable)
+{
+	u32 led = 0;
+#define LINK_ENABLE_BIT 0x1
+
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_CTRL2, &led);
+
+	if (do_enable & LINK_ENABLE_BIT) {
+		led |= LINK_ENABLE_BIT;
+		cphy_mdio_write(cphy, MDIO_MMD_PMAPMD, MDIO_CTRL2, led);
+	} else {
+		led &= ~LINK_ENABLE_BIT;
+		cphy_mdio_write(cphy, MDIO_MMD_PMAPMD, MDIO_CTRL2, led);
+	}
+	return 0;
+}
+
+/* Port Reset */
+static int mv88x201x_reset(struct cphy *cphy, int wait)
+{
+	/* This can be done through registers.  It is not required since
+	 * a full chip reset is used.
+	 */
+	return 0;
+}
+
+static int mv88x201x_interrupt_enable(struct cphy *cphy)
+{
+	/* Enable PHY LASI interrupts. */
+	cphy_mdio_write(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL,
+			MDIO_PMA_LASI_LSALARM);
+
+	/* Enable Marvell interrupts through Elmer0. */
+	if (t1_is_asic(cphy->adapter)) {
+		u32 elmer;
+
+		t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer);
+		elmer |= ELMER0_GP_BIT6;
+		t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer);
+	}
+	return 0;
+}
+
+static int mv88x201x_interrupt_disable(struct cphy *cphy)
+{
+	/* Disable PHY LASI interrupts. */
+	cphy_mdio_write(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, 0x0);
+
+	/* Disable Marvell interrupts through Elmer0. */
+	if (t1_is_asic(cphy->adapter)) {
+		u32 elmer;
+
+		t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer);
+		elmer &= ~ELMER0_GP_BIT6;
+		t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer);
+	}
+	return 0;
+}
+
+static int mv88x201x_interrupt_clear(struct cphy *cphy)
+{
+	u32 elmer;
+	u32 val;
+
+#ifdef MV88x2010_LINK_STATUS_BUGS
+	/* Required to read twice before clear takes affect. */
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_RXSTAT, &val);
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_TXSTAT, &val);
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT, &val);
+
+	/* Read this register after the others above it else
+	 * the register doesn't clear correctly.
+	 */
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_STAT1, &val);
+#endif
+
+	/* Clear link status. */
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_STAT1, &val);
+	/* Clear PHY LASI interrupts. */
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT, &val);
+
+#ifdef MV88x2010_LINK_STATUS_BUGS
+	/* Do it again. */
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_RXSTAT, &val);
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_TXSTAT, &val);
+#endif
+
+	/* Clear Marvell interrupts through Elmer0. */
+	if (t1_is_asic(cphy->adapter)) {
+		t1_tpi_read(cphy->adapter, A_ELMER0_INT_CAUSE, &elmer);
+		elmer |= ELMER0_GP_BIT6;
+		t1_tpi_write(cphy->adapter, A_ELMER0_INT_CAUSE, elmer);
+	}
+	return 0;
+}
+
+static int mv88x201x_interrupt_handler(struct cphy *cphy)
+{
+	/* Clear interrupts */
+	mv88x201x_interrupt_clear(cphy);
+
+	/* We have only enabled link change interrupts and so
+	 * cphy_cause must be a link change interrupt.
+	 */
+	return cphy_cause_link_change;
+}
+
+static int mv88x201x_set_loopback(struct cphy *cphy, int on)
+{
+	return 0;
+}
+
+static int mv88x201x_get_link_status(struct cphy *cphy, int *link_ok,
+				     int *speed, int *duplex, int *fc)
+{
+	u32 val = 0;
+
+	if (link_ok) {
+		/* Read link status. */
+		cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_STAT1, &val);
+		val &= MDIO_STAT1_LSTATUS;
+		*link_ok = (val == MDIO_STAT1_LSTATUS);
+		/* Turn on/off Link LED */
+		led_link(cphy, *link_ok);
+	}
+	if (speed)
+		*speed = SPEED_10000;
+	if (duplex)
+		*duplex = DUPLEX_FULL;
+	if (fc)
+		*fc = PAUSE_RX | PAUSE_TX;
+	return 0;
+}
+
+static void mv88x201x_destroy(struct cphy *cphy)
+{
+	kfree(cphy);
+}
+
+static const struct cphy_ops mv88x201x_ops = {
+	.destroy           = mv88x201x_destroy,
+	.reset             = mv88x201x_reset,
+	.interrupt_enable  = mv88x201x_interrupt_enable,
+	.interrupt_disable = mv88x201x_interrupt_disable,
+	.interrupt_clear   = mv88x201x_interrupt_clear,
+	.interrupt_handler = mv88x201x_interrupt_handler,
+	.get_link_status   = mv88x201x_get_link_status,
+	.set_loopback      = mv88x201x_set_loopback,
+	.mmds              = (MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS |
+			      MDIO_DEVS_PHYXS | MDIO_DEVS_WIS),
+};
+
+static struct cphy *mv88x201x_phy_create(struct net_device *dev, int phy_addr,
+					 const struct mdio_ops *mdio_ops)
+{
+	u32 val;
+	struct cphy *cphy = kzalloc(sizeof(*cphy), GFP_KERNEL);
+
+	if (!cphy)
+		return NULL;
+
+	cphy_init(cphy, dev, phy_addr, &mv88x201x_ops, mdio_ops);
+
+	/* Commands the PHY to enable XFP's clock. */
+	cphy_mdio_read(cphy, MDIO_MMD_PCS, 0x8300, &val);
+	cphy_mdio_write(cphy, MDIO_MMD_PCS, 0x8300, val | 1);
+
+	/* Clear link status. Required because of a bug in the PHY.  */
+	cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_STAT2, &val);
+	cphy_mdio_read(cphy, MDIO_MMD_PCS, MDIO_STAT2, &val);
+
+	/* Allows for Link,Ack LED turn on/off */
+	led_init(cphy);
+	return cphy;
+}
+
+/* Chip Reset */
+static int mv88x201x_phy_reset(adapter_t *adapter)
+{
+	u32 val;
+
+	t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+	val &= ~4;
+	t1_tpi_write(adapter, A_ELMER0_GPO, val);
+	msleep(100);
+
+	t1_tpi_write(adapter, A_ELMER0_GPO, val | 4);
+	msleep(1000);
+
+	/* Now lets enable the Laser. Delay 100us */
+	t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+	val |= 0x8000;
+	t1_tpi_write(adapter, A_ELMER0_GPO, val);
+	udelay(100);
+	return 0;
+}
+
+const struct gphy t1_mv88x201x_ops = {
+	.create = mv88x201x_phy_create,
+	.reset = mv88x201x_phy_reset
+};