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, 227 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
new file mode 100644
index 000000000..aef0258a7
--- /dev/null
+++ b/drivers/usb/host/xhci-rcar.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * xHCI host controller driver for R-Car SoCs
+ *
+ * Copyright (C) 2014 Renesas Electronics Corporation
+ */
+
+#include <linux/firmware.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/usb/phy.h>
+#include <linux/sys_soc.h>
+
+#include "xhci.h"
+#include "xhci-plat.h"
+#include "xhci-rcar.h"
+
+/*
+* - The V3 firmware is for almost all R-Car Gen3 (except r8a7795 ES1.x)
+* - The V2 firmware is for r8a7795 ES1.x.
+* - The V2 firmware is possible to use on R-Car Gen2. However, the V2 causes
+*   performance degradation. So, this driver continues to use the V1 if R-Car
+*   Gen2.
+* - The V1 firmware is impossible to use on R-Car Gen3.
+*/
+MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V1);
+MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V2);
+MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V3);
+
+/*** Register Offset ***/
+#define RCAR_USB3_AXH_STA	0x104	/* AXI Host Control Status */
+#define RCAR_USB3_INT_ENA	0x224	/* Interrupt Enable */
+#define RCAR_USB3_DL_CTRL	0x250	/* FW Download Control & Status */
+#define RCAR_USB3_FW_DATA0	0x258	/* FW Data0 */
+
+#define RCAR_USB3_LCLK		0xa44	/* LCLK Select */
+#define RCAR_USB3_CONF1		0xa48	/* USB3.0 Configuration1 */
+#define RCAR_USB3_CONF2		0xa5c	/* USB3.0 Configuration2 */
+#define RCAR_USB3_CONF3		0xaa8	/* USB3.0 Configuration3 */
+#define RCAR_USB3_RX_POL	0xab0	/* USB3.0 RX Polarity */
+#define RCAR_USB3_TX_POL	0xab8	/* USB3.0 TX Polarity */
+
+/*** Register Settings ***/
+/* AXI Host Control Status */
+#define RCAR_USB3_AXH_STA_B3_PLL_ACTIVE		0x00010000
+#define RCAR_USB3_AXH_STA_B2_PLL_ACTIVE		0x00000001
+#define RCAR_USB3_AXH_STA_PLL_ACTIVE_MASK (RCAR_USB3_AXH_STA_B3_PLL_ACTIVE | \
+					   RCAR_USB3_AXH_STA_B2_PLL_ACTIVE)
+
+/* Interrupt Enable */
+#define RCAR_USB3_INT_XHC_ENA	0x00000001
+#define RCAR_USB3_INT_PME_ENA	0x00000002
+#define RCAR_USB3_INT_HSE_ENA	0x00000004
+#define RCAR_USB3_INT_ENA_VAL	(RCAR_USB3_INT_XHC_ENA | \
+				RCAR_USB3_INT_PME_ENA | RCAR_USB3_INT_HSE_ENA)
+
+/* FW Download Control & Status */
+#define RCAR_USB3_DL_CTRL_ENABLE	0x00000001
+#define RCAR_USB3_DL_CTRL_FW_SUCCESS	0x00000010
+#define RCAR_USB3_DL_CTRL_FW_SET_DATA0	0x00000100
+
+/* LCLK Select */
+#define RCAR_USB3_LCLK_ENA_VAL	0x01030001
+
+/* USB3.0 Configuration */
+#define RCAR_USB3_CONF1_VAL	0x00030204
+#define RCAR_USB3_CONF2_VAL	0x00030300
+#define RCAR_USB3_CONF3_VAL	0x13802007
+
+/* USB3.0 Polarity */
+#define RCAR_USB3_RX_POL_VAL	BIT(21)
+#define RCAR_USB3_TX_POL_VAL	BIT(4)
+
+/* For soc_device_attribute */
+#define RCAR_XHCI_FIRMWARE_V2   BIT(0) /* FIRMWARE V2 */
+#define RCAR_XHCI_FIRMWARE_V3   BIT(1) /* FIRMWARE V3 */
+
+static const struct soc_device_attribute rcar_quirks_match[]  = {
+	{
+		.soc_id = "r8a7795", .revision = "ES1.*",
+		.data = (void *)RCAR_XHCI_FIRMWARE_V2,
+	},
+	{ /* sentinel */ }
+};
+
+static void xhci_rcar_start_gen2(struct usb_hcd *hcd)
+{
+	/* LCLK Select */
+	writel(RCAR_USB3_LCLK_ENA_VAL, hcd->regs + RCAR_USB3_LCLK);
+	/* USB3.0 Configuration */
+	writel(RCAR_USB3_CONF1_VAL, hcd->regs + RCAR_USB3_CONF1);
+	writel(RCAR_USB3_CONF2_VAL, hcd->regs + RCAR_USB3_CONF2);
+	writel(RCAR_USB3_CONF3_VAL, hcd->regs + RCAR_USB3_CONF3);
+	/* USB3.0 Polarity */
+	writel(RCAR_USB3_RX_POL_VAL, hcd->regs + RCAR_USB3_RX_POL);
+	writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL);
+}
+
+static int xhci_rcar_is_gen2(struct device *dev)
+{
+	struct device_node *node = dev->of_node;
+
+	return of_device_is_compatible(node, "renesas,xhci-r8a7790") ||
+		of_device_is_compatible(node, "renesas,xhci-r8a7791") ||
+		of_device_is_compatible(node, "renesas,xhci-r8a7793") ||
+		of_device_is_compatible(node, "renesas,rcar-gen2-xhci");
+}
+
+void xhci_rcar_start(struct usb_hcd *hcd)
+{
+	u32 temp;
+
+	if (hcd->regs != NULL) {
+		/* Interrupt Enable */
+		temp = readl(hcd->regs + RCAR_USB3_INT_ENA);
+		temp |= RCAR_USB3_INT_ENA_VAL;
+		writel(temp, hcd->regs + RCAR_USB3_INT_ENA);
+		if (xhci_rcar_is_gen2(hcd->self.controller))
+			xhci_rcar_start_gen2(hcd);
+	}
+}
+
+static int xhci_rcar_download_firmware(struct usb_hcd *hcd)
+{
+	struct device *dev = hcd->self.controller;
+	void __iomem *regs = hcd->regs;
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+	const struct firmware *fw;
+	int retval, index, j;
+	u32 data, val, temp;
+	u32 quirks = 0;
+	const struct soc_device_attribute *attr;
+	const char *firmware_name;
+
+	/*
+	 * According to the datasheet, "Upon the completion of FW Download,
+	 * there is no need to write or reload FW".
+	 */
+	if (readl(regs + RCAR_USB3_DL_CTRL) & RCAR_USB3_DL_CTRL_FW_SUCCESS)
+		return 0;
+
+	attr = soc_device_match(rcar_quirks_match);
+	if (attr)
+		quirks = (uintptr_t)attr->data;
+
+	if (quirks & RCAR_XHCI_FIRMWARE_V2)
+		firmware_name = XHCI_RCAR_FIRMWARE_NAME_V2;
+	else if (quirks & RCAR_XHCI_FIRMWARE_V3)
+		firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3;
+	else
+		firmware_name = priv->firmware_name;
+
+	/* request R-Car USB3.0 firmware */
+	retval = request_firmware(&fw, firmware_name, dev);
+	if (retval)
+		return retval;
+
+	/* download R-Car USB3.0 firmware */
+	temp = readl(regs + RCAR_USB3_DL_CTRL);
+	temp |= RCAR_USB3_DL_CTRL_ENABLE;
+	writel(temp, regs + RCAR_USB3_DL_CTRL);
+
+	for (index = 0; index < fw->size; index += 4) {
+		/* to avoid reading beyond the end of the buffer */
+		for (data = 0, j = 3; j >= 0; j--) {
+			if ((j + index) < fw->size)
+				data |= fw->data[index + j] << (8 * j);
+		}
+		writel(data, regs + RCAR_USB3_FW_DATA0);
+		temp = readl(regs + RCAR_USB3_DL_CTRL);
+		temp |= RCAR_USB3_DL_CTRL_FW_SET_DATA0;
+		writel(temp, regs + RCAR_USB3_DL_CTRL);
+
+		retval = readl_poll_timeout_atomic(regs + RCAR_USB3_DL_CTRL,
+				val, !(val & RCAR_USB3_DL_CTRL_FW_SET_DATA0),
+				1, 10000);
+		if (retval < 0)
+			break;
+	}
+
+	temp = readl(regs + RCAR_USB3_DL_CTRL);
+	temp &= ~RCAR_USB3_DL_CTRL_ENABLE;
+	writel(temp, regs + RCAR_USB3_DL_CTRL);
+
+	retval = readl_poll_timeout_atomic((regs + RCAR_USB3_DL_CTRL),
+			val, val & RCAR_USB3_DL_CTRL_FW_SUCCESS, 1, 10000);
+
+	release_firmware(fw);
+
+	return retval;
+}
+
+static bool xhci_rcar_wait_for_pll_active(struct usb_hcd *hcd)
+{
+	int retval;
+	u32 val, mask = RCAR_USB3_AXH_STA_PLL_ACTIVE_MASK;
+
+	retval = readl_poll_timeout_atomic(hcd->regs + RCAR_USB3_AXH_STA,
+			val, (val & mask) == mask, 1, 1000);
+	return !retval;
+}
+
+/* This function needs to initialize a "phy" of usb before */
+int xhci_rcar_init_quirk(struct usb_hcd *hcd)
+{
+	/* If hcd->regs is NULL, we don't just call the following function */
+	if (!hcd->regs)
+		return 0;
+
+	if (!xhci_rcar_wait_for_pll_active(hcd))
+		return -ETIMEDOUT;
+
+	return xhci_rcar_download_firmware(hcd);
+}
+
+int xhci_rcar_resume_quirk(struct usb_hcd *hcd)
+{
+	int ret;
+
+	ret = xhci_rcar_download_firmware(hcd);
+	if (!ret)
+		xhci_rcar_start(hcd);
+
+	return ret;
+}