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, 354 insertions, 0 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb3/aq100x.c b/drivers/net/ethernet/chelsio/cxgb3/aq100x.c
new file mode 100644
index 000000000..6af5d200e
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb3/aq100x.c
@@ -0,0 +1,354 @@
+/*
+ * Copyright (c) 2005-2008 Chelsio, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "common.h"
+#include "regs.h"
+
+enum {
+	/* MDIO_DEV_PMA_PMD registers */
+	AQ_LINK_STAT	= 0xe800,
+	AQ_IMASK_PMA	= 0xf000,
+
+	/* MDIO_DEV_XGXS registers */
+	AQ_XAUI_RX_CFG	= 0xc400,
+	AQ_XAUI_TX_CFG	= 0xe400,
+
+	/* MDIO_DEV_ANEG registers */
+	AQ_1G_CTRL	= 0xc400,
+	AQ_ANEG_STAT	= 0xc800,
+
+	/* MDIO_DEV_VEND1 registers */
+	AQ_FW_VERSION	= 0x0020,
+	AQ_IFLAG_GLOBAL	= 0xfc00,
+	AQ_IMASK_GLOBAL	= 0xff00,
+};
+
+enum {
+	IMASK_PMA	= 1 << 2,
+	IMASK_GLOBAL	= 1 << 15,
+	ADV_1G_FULL	= 1 << 15,
+	ADV_1G_HALF	= 1 << 14,
+	ADV_10G_FULL	= 1 << 12,
+	AQ_RESET	= (1 << 14) | (1 << 15),
+	AQ_LOWPOWER	= 1 << 12,
+};
+
+static int aq100x_reset(struct cphy *phy, int wait)
+{
+	/*
+	 * Ignore the caller specified wait time; always wait for the reset to
+	 * complete. Can take up to 3s.
+	 */
+	int err = t3_phy_reset(phy, MDIO_MMD_VEND1, 3000);
+
+	if (err)
+		CH_WARN(phy->adapter, "PHY%d: reset failed (0x%x).\n",
+			phy->mdio.prtad, err);
+
+	return err;
+}
+
+static int aq100x_intr_enable(struct cphy *phy)
+{
+	int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AQ_IMASK_PMA, IMASK_PMA);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_MMD_VEND1, AQ_IMASK_GLOBAL, IMASK_GLOBAL);
+	return err;
+}
+
+static int aq100x_intr_disable(struct cphy *phy)
+{
+	return t3_mdio_write(phy, MDIO_MMD_VEND1, AQ_IMASK_GLOBAL, 0);
+}
+
+static int aq100x_intr_clear(struct cphy *phy)
+{
+	unsigned int v;
+
+	t3_mdio_read(phy, MDIO_MMD_VEND1, AQ_IFLAG_GLOBAL, &v);
+	t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_STAT1, &v);
+
+	return 0;
+}
+
+static int aq100x_intr_handler(struct cphy *phy)
+{
+	int err;
+	unsigned int cause, v;
+
+	err = t3_mdio_read(phy, MDIO_MMD_VEND1, AQ_IFLAG_GLOBAL, &cause);
+	if (err)
+		return err;
+
+	/* Read (and reset) the latching version of the status */
+	t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_STAT1, &v);
+
+	return cphy_cause_link_change;
+}
+
+static int aq100x_power_down(struct cphy *phy, int off)
+{
+	return mdio_set_flag(&phy->mdio, phy->mdio.prtad,
+			     MDIO_MMD_PMAPMD, MDIO_CTRL1,
+			     MDIO_CTRL1_LPOWER, off);
+}
+
+static int aq100x_autoneg_enable(struct cphy *phy)
+{
+	int err;
+
+	err = aq100x_power_down(phy, 0);
+	if (!err)
+		err = mdio_set_flag(&phy->mdio, phy->mdio.prtad,
+				    MDIO_MMD_AN, MDIO_CTRL1,
+				    BMCR_ANENABLE | BMCR_ANRESTART, 1);
+
+	return err;
+}
+
+static int aq100x_autoneg_restart(struct cphy *phy)
+{
+	int err;
+
+	err = aq100x_power_down(phy, 0);
+	if (!err)
+		err = mdio_set_flag(&phy->mdio, phy->mdio.prtad,
+				    MDIO_MMD_AN, MDIO_CTRL1,
+				    BMCR_ANENABLE | BMCR_ANRESTART, 1);
+
+	return err;
+}
+
+static int aq100x_advertise(struct cphy *phy, unsigned int advertise_map)
+{
+	unsigned int adv;
+	int err;
+
+	/* 10G advertisement */
+	adv = 0;
+	if (advertise_map & ADVERTISED_10000baseT_Full)
+		adv |= ADV_10G_FULL;
+	err = t3_mdio_change_bits(phy, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
+				  ADV_10G_FULL, adv);
+	if (err)
+		return err;
+
+	/* 1G advertisement */
+	adv = 0;
+	if (advertise_map & ADVERTISED_1000baseT_Full)
+		adv |= ADV_1G_FULL;
+	if (advertise_map & ADVERTISED_1000baseT_Half)
+		adv |= ADV_1G_HALF;
+	err = t3_mdio_change_bits(phy, MDIO_MMD_AN, AQ_1G_CTRL,
+				  ADV_1G_FULL | ADV_1G_HALF, adv);
+	if (err)
+		return err;
+
+	/* 100M, pause advertisement */
+	adv = 0;
+	if (advertise_map & ADVERTISED_100baseT_Half)
+		adv |= ADVERTISE_100HALF;
+	if (advertise_map & ADVERTISED_100baseT_Full)
+		adv |= ADVERTISE_100FULL;
+	if (advertise_map & ADVERTISED_Pause)
+		adv |= ADVERTISE_PAUSE_CAP;
+	if (advertise_map & ADVERTISED_Asym_Pause)
+		adv |= ADVERTISE_PAUSE_ASYM;
+	err = t3_mdio_change_bits(phy, MDIO_MMD_AN, MDIO_AN_ADVERTISE,
+				  0xfe0, adv);
+
+	return err;
+}
+
+static int aq100x_set_loopback(struct cphy *phy, int mmd, int dir, int enable)
+{
+	return mdio_set_flag(&phy->mdio, phy->mdio.prtad,
+			     MDIO_MMD_PMAPMD, MDIO_CTRL1,
+			     BMCR_LOOPBACK, enable);
+}
+
+static int aq100x_set_speed_duplex(struct cphy *phy, int speed, int duplex)
+{
+	/* no can do */
+	return -1;
+}
+
+static int aq100x_get_link_status(struct cphy *phy, int *link_ok,
+				  int *speed, int *duplex, int *fc)
+{
+	int err;
+	unsigned int v;
+
+	if (link_ok) {
+		err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AQ_LINK_STAT, &v);
+		if (err)
+			return err;
+
+		*link_ok = v & 1;
+		if (!*link_ok)
+			return 0;
+	}
+
+	err = t3_mdio_read(phy, MDIO_MMD_AN, AQ_ANEG_STAT, &v);
+	if (err)
+		return err;
+
+	if (speed) {
+		switch (v & 0x6) {
+		case 0x6:
+			*speed = SPEED_10000;
+			break;
+		case 0x4:
+			*speed = SPEED_1000;
+			break;
+		case 0x2:
+			*speed = SPEED_100;
+			break;
+		case 0x0:
+			*speed = SPEED_10;
+			break;
+		}
+	}
+
+	if (duplex)
+		*duplex = v & 1 ? DUPLEX_FULL : DUPLEX_HALF;
+
+	return 0;
+}
+
+static const struct cphy_ops aq100x_ops = {
+	.reset             = aq100x_reset,
+	.intr_enable       = aq100x_intr_enable,
+	.intr_disable      = aq100x_intr_disable,
+	.intr_clear        = aq100x_intr_clear,
+	.intr_handler      = aq100x_intr_handler,
+	.autoneg_enable    = aq100x_autoneg_enable,
+	.autoneg_restart   = aq100x_autoneg_restart,
+	.advertise         = aq100x_advertise,
+	.set_loopback      = aq100x_set_loopback,
+	.set_speed_duplex  = aq100x_set_speed_duplex,
+	.get_link_status   = aq100x_get_link_status,
+	.power_down        = aq100x_power_down,
+	.mmds 		   = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS,
+};
+
+int t3_aq100x_phy_prep(struct cphy *phy, struct adapter *adapter, int phy_addr,
+		       const struct mdio_ops *mdio_ops)
+{
+	unsigned int v, v2, gpio, wait;
+	int err;
+
+	cphy_init(phy, adapter, phy_addr, &aq100x_ops, mdio_ops,
+		  SUPPORTED_1000baseT_Full | SUPPORTED_10000baseT_Full |
+		  SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_AUI,
+		  "1000/10GBASE-T");
+
+	/*
+	 * The PHY has been out of reset ever since the system powered up.  So
+	 * we do a hard reset over here.
+	 */
+	gpio = phy_addr ? F_GPIO10_OUT_VAL : F_GPIO6_OUT_VAL;
+	t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, gpio, 0);
+	msleep(1);
+	t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, gpio, gpio);
+
+	/*
+	 * Give it enough time to load the firmware and get ready for mdio.
+	 */
+	msleep(1000);
+	wait = 500; /* in 10ms increments */
+	do {
+		err = t3_mdio_read(phy, MDIO_MMD_VEND1, MDIO_CTRL1, &v);
+		if (err || v == 0xffff) {
+
+			/* Allow prep_adapter to succeed when ffff is read */
+
+			CH_WARN(adapter, "PHY%d: reset failed (0x%x, 0x%x).\n",
+				phy_addr, err, v);
+			goto done;
+		}
+
+		v &= AQ_RESET;
+		if (v)
+			msleep(10);
+	} while (v && --wait);
+	if (v) {
+		CH_WARN(adapter, "PHY%d: reset timed out (0x%x).\n",
+			phy_addr, v);
+
+		goto done; /* let prep_adapter succeed */
+	}
+
+	/* Datasheet says 3s max but this has been observed */
+	wait = (500 - wait) * 10 + 1000;
+	if (wait > 3000)
+		CH_WARN(adapter, "PHY%d: reset took %ums\n", phy_addr, wait);
+
+	/* Firmware version check. */
+	t3_mdio_read(phy, MDIO_MMD_VEND1, AQ_FW_VERSION, &v);
+	if (v != 101)
+		CH_WARN(adapter, "PHY%d: unsupported firmware %d\n",
+			phy_addr, v);
+
+	/*
+	 * The PHY should start in really-low-power mode.  Prepare it for normal
+	 * operations.
+	 */
+	err = t3_mdio_read(phy, MDIO_MMD_VEND1, MDIO_CTRL1, &v);
+	if (err)
+		return err;
+	if (v & AQ_LOWPOWER) {
+		err = t3_mdio_change_bits(phy, MDIO_MMD_VEND1, MDIO_CTRL1,
+					  AQ_LOWPOWER, 0);
+		if (err)
+			return err;
+		msleep(10);
+	} else
+		CH_WARN(adapter, "PHY%d does not start in low power mode.\n",
+			phy_addr);
+
+	/*
+	 * Verify XAUI settings, but let prep succeed no matter what.
+	 */
+	v = v2 = 0;
+	t3_mdio_read(phy, MDIO_MMD_PHYXS, AQ_XAUI_RX_CFG, &v);
+	t3_mdio_read(phy, MDIO_MMD_PHYXS, AQ_XAUI_TX_CFG, &v2);
+	if (v != 0x1b || v2 != 0x1b)
+		CH_WARN(adapter,
+			"PHY%d: incorrect XAUI settings (0x%x, 0x%x).\n",
+			phy_addr, v, v2);
+
+done:
+	return err;
+}