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, 371 insertions, 0 deletions

diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
new file mode 100644
index 000000000..8ea62c344
--- /dev/null
+++ b/drivers/usb/musb/ux500.c
@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2010 ST-Ericsson AB
+ * Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
+ *
+ * Based on omap2430.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/usb/musb-ux500.h>
+
+#include "musb_core.h"
+
+static const struct musb_hdrc_config ux500_musb_hdrc_config = {
+	.multipoint	= true,
+	.dyn_fifo	= true,
+	.num_eps	= 16,
+	.ram_bits	= 16,
+};
+
+struct ux500_glue {
+	struct device		*dev;
+	struct platform_device	*musb;
+	struct clk		*clk;
+};
+#define glue_to_musb(g)	platform_get_drvdata(g->musb)
+
+static void ux500_musb_set_vbus(struct musb *musb, int is_on)
+{
+	u8            devctl;
+	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
+	/* HDRC controls CPEN, but beware current surges during device
+	 * connect.  They can trigger transient overcurrent conditions
+	 * that must be ignored.
+	 */
+
+	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+
+	if (is_on) {
+		if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
+			/* start the session */
+			devctl |= MUSB_DEVCTL_SESSION;
+			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+			/*
+			 * Wait for the musb to set as A device to enable the
+			 * VBUS
+			 */
+			while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {
+
+				if (time_after(jiffies, timeout)) {
+					dev_err(musb->controller,
+					"configured as A device timeout");
+					break;
+				}
+			}
+
+		} else {
+			musb->is_active = 1;
+			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
+			devctl |= MUSB_DEVCTL_SESSION;
+			MUSB_HST_MODE(musb);
+		}
+	} else {
+		musb->is_active = 0;
+
+		/* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and jumping
+		 * right to B_IDLE...
+		 */
+		devctl &= ~MUSB_DEVCTL_SESSION;
+		MUSB_DEV_MODE(musb);
+	}
+	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+
+	/*
+	 * Devctl values will be updated after vbus goes below
+	 * session_valid. The time taken depends on the capacitance
+	 * on VBUS line. The max discharge time can be upto 1 sec
+	 * as per the spec. Typically on our platform, it is 200ms
+	 */
+	if (!is_on)
+		mdelay(200);
+
+	dev_dbg(musb->controller, "VBUS %s, devctl %02x\n",
+		usb_otg_state_string(musb->xceiv->otg->state),
+		musb_readb(musb->mregs, MUSB_DEVCTL));
+}
+
+static int musb_otg_notifications(struct notifier_block *nb,
+		unsigned long event, void *unused)
+{
+	struct musb *musb = container_of(nb, struct musb, nb);
+
+	dev_dbg(musb->controller, "musb_otg_notifications %ld %s\n",
+			event, usb_otg_state_string(musb->xceiv->otg->state));
+
+	switch (event) {
+	case UX500_MUSB_ID:
+		dev_dbg(musb->controller, "ID GND\n");
+		ux500_musb_set_vbus(musb, 1);
+		break;
+	case UX500_MUSB_VBUS:
+		dev_dbg(musb->controller, "VBUS Connect\n");
+		break;
+	case UX500_MUSB_NONE:
+		dev_dbg(musb->controller, "VBUS Disconnect\n");
+		if (is_host_active(musb))
+			ux500_musb_set_vbus(musb, 0);
+		else
+			musb->xceiv->otg->state = OTG_STATE_B_IDLE;
+		break;
+	default:
+		dev_dbg(musb->controller, "ID float\n");
+		return NOTIFY_DONE;
+	}
+	return NOTIFY_OK;
+}
+
+static irqreturn_t ux500_musb_interrupt(int irq, void *__hci)
+{
+	unsigned long   flags;
+	irqreturn_t     retval = IRQ_NONE;
+	struct musb     *musb = __hci;
+
+	spin_lock_irqsave(&musb->lock, flags);
+
+	musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+	musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
+	musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
+
+	if (musb->int_usb || musb->int_tx || musb->int_rx)
+		retval = musb_interrupt(musb);
+
+	spin_unlock_irqrestore(&musb->lock, flags);
+
+	return retval;
+}
+
+static int ux500_musb_init(struct musb *musb)
+{
+	int status;
+
+	musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
+	if (IS_ERR_OR_NULL(musb->xceiv)) {
+		pr_err("HS USB OTG: no transceiver configured\n");
+		return -EPROBE_DEFER;
+	}
+
+	musb->nb.notifier_call = musb_otg_notifications;
+	status = usb_register_notifier(musb->xceiv, &musb->nb);
+	if (status < 0) {
+		dev_dbg(musb->controller, "notification register failed\n");
+		return status;
+	}
+
+	musb->isr = ux500_musb_interrupt;
+
+	return 0;
+}
+
+static int ux500_musb_exit(struct musb *musb)
+{
+	usb_unregister_notifier(musb->xceiv, &musb->nb);
+
+	usb_put_phy(musb->xceiv);
+
+	return 0;
+}
+
+static const struct musb_platform_ops ux500_ops = {
+	.quirks		= MUSB_DMA_UX500 | MUSB_INDEXED_EP,
+#ifdef CONFIG_USB_UX500_DMA
+	.dma_init	= ux500_dma_controller_create,
+	.dma_exit	= ux500_dma_controller_destroy,
+#endif
+	.init		= ux500_musb_init,
+	.exit		= ux500_musb_exit,
+	.fifo_mode	= 5,
+
+	.set_vbus	= ux500_musb_set_vbus,
+};
+
+static struct musb_hdrc_platform_data *
+ux500_of_probe(struct platform_device *pdev, struct device_node *np)
+{
+	struct musb_hdrc_platform_data *pdata;
+	const char *mode;
+	int strlen;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
+
+	mode = of_get_property(np, "dr_mode", &strlen);
+	if (!mode) {
+		dev_err(&pdev->dev, "No 'dr_mode' property found\n");
+		return NULL;
+	}
+
+	if (strlen > 0) {
+		if (!strcmp(mode, "host"))
+			pdata->mode = MUSB_HOST;
+		if (!strcmp(mode, "otg"))
+			pdata->mode = MUSB_OTG;
+		if (!strcmp(mode, "peripheral"))
+			pdata->mode = MUSB_PERIPHERAL;
+	}
+
+	return pdata;
+}
+
+static int ux500_probe(struct platform_device *pdev)
+{
+	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
+	struct device_node		*np = pdev->dev.of_node;
+	struct platform_device		*musb;
+	struct ux500_glue		*glue;
+	struct clk			*clk;
+	int				ret = -ENOMEM;
+
+	if (!pdata) {
+		if (np) {
+			pdata = ux500_of_probe(pdev, np);
+			if (!pdata)
+				goto err0;
+
+			pdev->dev.platform_data = pdata;
+		} else {
+			dev_err(&pdev->dev, "no pdata or device tree found\n");
+			goto err0;
+		}
+	}
+
+	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
+	if (!glue)
+		goto err0;
+
+	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
+	if (!musb) {
+		dev_err(&pdev->dev, "failed to allocate musb device\n");
+		goto err0;
+	}
+
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to get clock\n");
+		ret = PTR_ERR(clk);
+		goto err1;
+	}
+
+	ret = clk_prepare_enable(clk);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to enable clock\n");
+		goto err1;
+	}
+
+	musb->dev.parent		= &pdev->dev;
+	musb->dev.dma_mask		= &pdev->dev.coherent_dma_mask;
+	musb->dev.coherent_dma_mask	= pdev->dev.coherent_dma_mask;
+	device_set_of_node_from_dev(&musb->dev, &pdev->dev);
+
+	glue->dev			= &pdev->dev;
+	glue->musb			= musb;
+	glue->clk			= clk;
+
+	pdata->platform_ops		= &ux500_ops;
+	pdata->config 			= &ux500_musb_hdrc_config;
+
+	platform_set_drvdata(pdev, glue);
+
+	ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to add resources\n");
+		goto err2;
+	}
+
+	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
+	if (ret) {
+		dev_err(&pdev->dev, "failed to add platform_data\n");
+		goto err2;
+	}
+
+	ret = platform_device_add(musb);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register musb device\n");
+		goto err2;
+	}
+
+	return 0;
+
+err2:
+	clk_disable_unprepare(clk);
+
+err1:
+	platform_device_put(musb);
+
+err0:
+	return ret;
+}
+
+static int ux500_remove(struct platform_device *pdev)
+{
+	struct ux500_glue	*glue = platform_get_drvdata(pdev);
+
+	platform_device_unregister(glue->musb);
+	clk_disable_unprepare(glue->clk);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ux500_suspend(struct device *dev)
+{
+	struct ux500_glue	*glue = dev_get_drvdata(dev);
+	struct musb		*musb = glue_to_musb(glue);
+
+	if (musb)
+		usb_phy_set_suspend(musb->xceiv, 1);
+
+	clk_disable_unprepare(glue->clk);
+
+	return 0;
+}
+
+static int ux500_resume(struct device *dev)
+{
+	struct ux500_glue	*glue = dev_get_drvdata(dev);
+	struct musb		*musb = glue_to_musb(glue);
+	int			ret;
+
+	ret = clk_prepare_enable(glue->clk);
+	if (ret) {
+		dev_err(dev, "failed to enable clock\n");
+		return ret;
+	}
+
+	if (musb)
+		usb_phy_set_suspend(musb->xceiv, 0);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ux500_pm_ops, ux500_suspend, ux500_resume);
+
+static const struct of_device_id ux500_match[] = {
+        { .compatible = "stericsson,db8500-musb", },
+        {}
+};
+
+MODULE_DEVICE_TABLE(of, ux500_match);
+
+static struct platform_driver ux500_driver = {
+	.probe		= ux500_probe,
+	.remove		= ux500_remove,
+	.driver		= {
+		.name	= "musb-ux500",
+		.pm	= &ux500_pm_ops,
+		.of_match_table = ux500_match,
+	},
+};
+
+MODULE_DESCRIPTION("UX500 MUSB Glue Layer");
+MODULE_AUTHOR("Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>");
+MODULE_LICENSE("GPL v2");
+module_platform_driver(ux500_driver);