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, 306 insertions, 0 deletions

diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
new file mode 100644
index 000000000..1c9831b78
--- /dev/null
+++ b/drivers/mfd/mcp-sa11x0.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/drivers/mfd/mcp-sa11x0.c
+ *
+ *  Copyright (C) 2001-2005 Russell King
+ *
+ *  SA11x0 MCP (Multimedia Communications Port) driver.
+ *
+ *  MCP read/write timeouts from Jordi Colomer, rehacked by rmk.
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/mfd/mcp.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <linux/platform_data/mfd-mcp-sa11x0.h>
+
+#define DRIVER_NAME "sa11x0-mcp"
+
+struct mcp_sa11x0 {
+	void __iomem	*base0;
+	void __iomem	*base1;
+	u32		mccr0;
+	u32		mccr1;
+};
+
+/* Register offsets */
+#define MCCR0(m)	((m)->base0 + 0x00)
+#define MCDR0(m)	((m)->base0 + 0x08)
+#define MCDR1(m)	((m)->base0 + 0x0c)
+#define MCDR2(m)	((m)->base0 + 0x10)
+#define MCSR(m)		((m)->base0 + 0x18)
+#define MCCR1(m)	((m)->base1 + 0x00)
+
+#define priv(mcp)	((struct mcp_sa11x0 *)mcp_priv(mcp))
+
+static void
+mcp_sa11x0_set_telecom_divisor(struct mcp *mcp, unsigned int divisor)
+{
+	struct mcp_sa11x0 *m = priv(mcp);
+
+	divisor /= 32;
+
+	m->mccr0 &= ~0x00007f00;
+	m->mccr0 |= divisor << 8;
+	writel_relaxed(m->mccr0, MCCR0(m));
+}
+
+static void
+mcp_sa11x0_set_audio_divisor(struct mcp *mcp, unsigned int divisor)
+{
+	struct mcp_sa11x0 *m = priv(mcp);
+
+	divisor /= 32;
+
+	m->mccr0 &= ~0x0000007f;
+	m->mccr0 |= divisor;
+	writel_relaxed(m->mccr0, MCCR0(m));
+}
+
+/*
+ * Write data to the device.  The bit should be set after 3 subframe
+ * times (each frame is 64 clocks).  We wait a maximum of 6 subframes.
+ * We really should try doing something more productive while we
+ * wait.
+ */
+static void
+mcp_sa11x0_write(struct mcp *mcp, unsigned int reg, unsigned int val)
+{
+	struct mcp_sa11x0 *m = priv(mcp);
+	int ret = -ETIME;
+	int i;
+
+	writel_relaxed(reg << 17 | MCDR2_Wr | (val & 0xffff), MCDR2(m));
+
+	for (i = 0; i < 2; i++) {
+		udelay(mcp->rw_timeout);
+		if (readl_relaxed(MCSR(m)) & MCSR_CWC) {
+			ret = 0;
+			break;
+		}
+	}
+
+	if (ret < 0)
+		printk(KERN_WARNING "mcp: write timed out\n");
+}
+
+/*
+ * Read data from the device.  The bit should be set after 3 subframe
+ * times (each frame is 64 clocks).  We wait a maximum of 6 subframes.
+ * We really should try doing something more productive while we
+ * wait.
+ */
+static unsigned int
+mcp_sa11x0_read(struct mcp *mcp, unsigned int reg)
+{
+	struct mcp_sa11x0 *m = priv(mcp);
+	int ret = -ETIME;
+	int i;
+
+	writel_relaxed(reg << 17 | MCDR2_Rd, MCDR2(m));
+
+	for (i = 0; i < 2; i++) {
+		udelay(mcp->rw_timeout);
+		if (readl_relaxed(MCSR(m)) & MCSR_CRC) {
+			ret = readl_relaxed(MCDR2(m)) & 0xffff;
+			break;
+		}
+	}
+
+	if (ret < 0)
+		printk(KERN_WARNING "mcp: read timed out\n");
+
+	return ret;
+}
+
+static void mcp_sa11x0_enable(struct mcp *mcp)
+{
+	struct mcp_sa11x0 *m = priv(mcp);
+
+	writel(-1, MCSR(m));
+	m->mccr0 |= MCCR0_MCE;
+	writel_relaxed(m->mccr0, MCCR0(m));
+}
+
+static void mcp_sa11x0_disable(struct mcp *mcp)
+{
+	struct mcp_sa11x0 *m = priv(mcp);
+
+	m->mccr0 &= ~MCCR0_MCE;
+	writel_relaxed(m->mccr0, MCCR0(m));
+}
+
+/*
+ * Our methods.
+ */
+static struct mcp_ops mcp_sa11x0 = {
+	.set_telecom_divisor	= mcp_sa11x0_set_telecom_divisor,
+	.set_audio_divisor	= mcp_sa11x0_set_audio_divisor,
+	.reg_write		= mcp_sa11x0_write,
+	.reg_read		= mcp_sa11x0_read,
+	.enable			= mcp_sa11x0_enable,
+	.disable		= mcp_sa11x0_disable,
+};
+
+static int mcp_sa11x0_probe(struct platform_device *dev)
+{
+	struct mcp_plat_data *data = dev_get_platdata(&dev->dev);
+	struct resource *mem0, *mem1;
+	struct mcp_sa11x0 *m;
+	struct mcp *mcp;
+	int ret;
+
+	if (!data)
+		return -ENODEV;
+
+	mem0 = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	mem1 = platform_get_resource(dev, IORESOURCE_MEM, 1);
+	if (!mem0 || !mem1)
+		return -ENXIO;
+
+	if (!request_mem_region(mem0->start, resource_size(mem0),
+				DRIVER_NAME)) {
+		ret = -EBUSY;
+		goto err_mem0;
+	}
+
+	if (!request_mem_region(mem1->start, resource_size(mem1),
+				DRIVER_NAME)) {
+		ret = -EBUSY;
+		goto err_mem1;
+	}
+
+	mcp = mcp_host_alloc(&dev->dev, sizeof(struct mcp_sa11x0));
+	if (!mcp) {
+		ret = -ENOMEM;
+		goto err_alloc;
+	}
+
+	mcp->owner		= THIS_MODULE;
+	mcp->ops		= &mcp_sa11x0;
+	mcp->sclk_rate		= data->sclk_rate;
+
+	m = priv(mcp);
+	m->mccr0 = data->mccr0 | 0x7f7f;
+	m->mccr1 = data->mccr1;
+
+	m->base0 = ioremap(mem0->start, resource_size(mem0));
+	m->base1 = ioremap(mem1->start, resource_size(mem1));
+	if (!m->base0 || !m->base1) {
+		ret = -ENOMEM;
+		goto err_ioremap;
+	}
+
+	platform_set_drvdata(dev, mcp);
+
+	/*
+	 * Initialise device.  Note that we initially
+	 * set the sampling rate to minimum.
+	 */
+	writel_relaxed(-1, MCSR(m));
+	writel_relaxed(m->mccr1, MCCR1(m));
+	writel_relaxed(m->mccr0, MCCR0(m));
+
+	/*
+	 * Calculate the read/write timeout (us) from the bit clock
+	 * rate.  This is the period for 3 64-bit frames.  Always
+	 * round this time up.
+	 */
+	mcp->rw_timeout = DIV_ROUND_UP(64 * 3 * 1000000, mcp->sclk_rate);
+
+	ret = mcp_host_add(mcp, data->codec_pdata);
+	if (ret == 0)
+		return 0;
+
+ err_ioremap:
+	iounmap(m->base1);
+	iounmap(m->base0);
+	mcp_host_free(mcp);
+ err_alloc:
+	release_mem_region(mem1->start, resource_size(mem1));
+ err_mem1:
+	release_mem_region(mem0->start, resource_size(mem0));
+ err_mem0:
+	return ret;
+}
+
+static int mcp_sa11x0_remove(struct platform_device *dev)
+{
+	struct mcp *mcp = platform_get_drvdata(dev);
+	struct mcp_sa11x0 *m = priv(mcp);
+	struct resource *mem0, *mem1;
+
+	if (m->mccr0 & MCCR0_MCE)
+		dev_warn(&dev->dev,
+			 "device left active (missing disable call?)\n");
+
+	mem0 = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	mem1 = platform_get_resource(dev, IORESOURCE_MEM, 1);
+
+	mcp_host_del(mcp);
+	iounmap(m->base1);
+	iounmap(m->base0);
+	mcp_host_free(mcp);
+	release_mem_region(mem1->start, resource_size(mem1));
+	release_mem_region(mem0->start, resource_size(mem0));
+
+	return 0;
+}
+
+static int mcp_sa11x0_suspend(struct device *dev)
+{
+	struct mcp_sa11x0 *m = priv(dev_get_drvdata(dev));
+
+	if (m->mccr0 & MCCR0_MCE)
+		dev_warn(dev, "device left active (missing disable call?)\n");
+
+	writel(m->mccr0 & ~MCCR0_MCE, MCCR0(m));
+
+	return 0;
+}
+
+static int mcp_sa11x0_resume(struct device *dev)
+{
+	struct mcp_sa11x0 *m = priv(dev_get_drvdata(dev));
+
+	writel_relaxed(m->mccr1, MCCR1(m));
+	writel_relaxed(m->mccr0, MCCR0(m));
+
+	return 0;
+}
+
+static const struct dev_pm_ops mcp_sa11x0_pm_ops = {
+	.suspend = mcp_sa11x0_suspend,
+	.freeze = mcp_sa11x0_suspend,
+	.poweroff = mcp_sa11x0_suspend,
+	.resume_noirq = mcp_sa11x0_resume,
+	.thaw_noirq = mcp_sa11x0_resume,
+	.restore_noirq = mcp_sa11x0_resume,
+};
+
+static struct platform_driver mcp_sa11x0_driver = {
+	.probe		= mcp_sa11x0_probe,
+	.remove		= mcp_sa11x0_remove,
+	.driver		= {
+		.name	= DRIVER_NAME,
+		.pm	= pm_sleep_ptr(&mcp_sa11x0_pm_ops),
+	},
+};
+
+/*
+ * This needs re-working
+ */
+module_platform_driver(mcp_sa11x0_driver);
+
+MODULE_ALIAS("platform:" DRIVER_NAME);
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("SA11x0 multimedia communications port driver");
+MODULE_LICENSE("GPL");