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, 245 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
new file mode 100644
index 000000000..c7f590645
--- /dev/null
+++ b/arch/arm/mach-omap1/serial.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/serial.c
+ *
+ * OMAP1 serial support.
+ */
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/mach-types.h>
+
+#include "serial.h"
+#include "mux.h"
+#include "pm.h"
+#include "soc.h"
+
+static struct clk * uart1_ck;
+static struct clk * uart2_ck;
+static struct clk * uart3_ck;
+
+static inline unsigned int omap_serial_in(struct plat_serial8250_port *up,
+					  int offset)
+{
+	offset <<= up->regshift;
+	return (unsigned int)__raw_readb(up->membase + offset);
+}
+
+static inline void omap_serial_outp(struct plat_serial8250_port *p, int offset,
+				    int value)
+{
+	offset <<= p->regshift;
+	__raw_writeb(value, p->membase + offset);
+}
+
+/*
+ * Internal UARTs need to be initialized for the 8250 autoconfig to work
+ * properly. Note that the TX watermark initialization may not be needed
+ * once the 8250.c watermark handling code is merged.
+ */
+static void __init omap_serial_reset(struct plat_serial8250_port *p)
+{
+	omap_serial_outp(p, UART_OMAP_MDR1,
+			UART_OMAP_MDR1_DISABLE);	/* disable UART */
+	omap_serial_outp(p, UART_OMAP_SCR, 0x08);	/* TX watermark */
+	omap_serial_outp(p, UART_OMAP_MDR1,
+			UART_OMAP_MDR1_16X_MODE);	/* enable UART */
+
+	if (!cpu_is_omap15xx()) {
+		omap_serial_outp(p, UART_OMAP_SYSC, 0x01);
+		while (!(omap_serial_in(p, UART_OMAP_SYSC) & 0x01));
+	}
+}
+
+static struct plat_serial8250_port serial_platform_data[] = {
+	{
+		.mapbase	= OMAP1_UART1_BASE,
+		.irq		= INT_UART1,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP16XX_BASE_BAUD * 16,
+	},
+	{
+		.mapbase	= OMAP1_UART2_BASE,
+		.irq		= INT_UART2,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP16XX_BASE_BAUD * 16,
+	},
+	{
+		.mapbase	= OMAP1_UART3_BASE,
+		.irq		= INT_UART3,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP16XX_BASE_BAUD * 16,
+	},
+	{ },
+};
+
+static struct platform_device serial_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_PLATFORM,
+	.dev			= {
+		.platform_data	= serial_platform_data,
+	},
+};
+
+/*
+ * Note that on Innovator-1510 UART2 pins conflict with USB2.
+ * By default UART2 does not work on Innovator-1510 if you have
+ * USB OHCI enabled. To use UART2, you must disable USB2 first.
+ */
+void __init omap_serial_init(void)
+{
+	int i;
+
+	if (cpu_is_omap15xx()) {
+		serial_platform_data[0].uartclk = OMAP1510_BASE_BAUD * 16;
+		serial_platform_data[1].uartclk = OMAP1510_BASE_BAUD * 16;
+		serial_platform_data[2].uartclk = OMAP1510_BASE_BAUD * 16;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(serial_platform_data) - 1; i++) {
+		/* Static mapping, never released */
+		serial_platform_data[i].membase =
+			ioremap(serial_platform_data[i].mapbase, SZ_2K);
+		if (!serial_platform_data[i].membase) {
+			printk(KERN_ERR "Could not ioremap uart%i\n", i);
+			continue;
+		}
+		switch (i) {
+		case 0:
+			uart1_ck = clk_get(NULL, "uart1_ck");
+			if (IS_ERR(uart1_ck))
+				printk("Could not get uart1_ck\n");
+			else {
+				clk_prepare_enable(uart1_ck);
+				if (cpu_is_omap15xx())
+					clk_set_rate(uart1_ck, 12000000);
+			}
+			break;
+		case 1:
+			uart2_ck = clk_get(NULL, "uart2_ck");
+			if (IS_ERR(uart2_ck))
+				printk("Could not get uart2_ck\n");
+			else {
+				clk_prepare_enable(uart2_ck);
+				if (cpu_is_omap15xx())
+					clk_set_rate(uart2_ck, 12000000);
+				else
+					clk_set_rate(uart2_ck, 48000000);
+			}
+			break;
+		case 2:
+			uart3_ck = clk_get(NULL, "uart3_ck");
+			if (IS_ERR(uart3_ck))
+				printk("Could not get uart3_ck\n");
+			else {
+				clk_prepare_enable(uart3_ck);
+				if (cpu_is_omap15xx())
+					clk_set_rate(uart3_ck, 12000000);
+			}
+			break;
+		}
+		omap_serial_reset(&serial_platform_data[i]);
+	}
+}
+
+#ifdef CONFIG_OMAP_SERIAL_WAKE
+
+static irqreturn_t omap_serial_wake_interrupt(int irq, void *dev_id)
+{
+	/* Need to do something with serial port right after wake-up? */
+	return IRQ_HANDLED;
+}
+
+/*
+ * Reroutes serial RX lines to GPIO lines for the duration of
+ * sleep to allow waking up the device from serial port even
+ * in deep sleep.
+ */
+void omap_serial_wake_trigger(int enable)
+{
+	if (!cpu_is_omap16xx())
+		return;
+
+	if (uart1_ck != NULL) {
+		if (enable)
+			omap_cfg_reg(V14_16XX_GPIO37);
+		else
+			omap_cfg_reg(V14_16XX_UART1_RX);
+	}
+	if (uart2_ck != NULL) {
+		if (enable)
+			omap_cfg_reg(R9_16XX_GPIO18);
+		else
+			omap_cfg_reg(R9_16XX_UART2_RX);
+	}
+	if (uart3_ck != NULL) {
+		if (enable)
+			omap_cfg_reg(L14_16XX_GPIO49);
+		else
+			omap_cfg_reg(L14_16XX_UART3_RX);
+	}
+}
+
+static void __init omap_serial_set_port_wakeup(int gpio_nr)
+{
+	int ret;
+
+	ret = gpio_request(gpio_nr, "UART wake");
+	if (ret < 0) {
+		printk(KERN_ERR "Could not request UART wake GPIO: %i\n",
+		       gpio_nr);
+		return;
+	}
+	gpio_direction_input(gpio_nr);
+	ret = request_irq(gpio_to_irq(gpio_nr), &omap_serial_wake_interrupt,
+			  IRQF_TRIGGER_RISING, "serial wakeup", NULL);
+	if (ret) {
+		gpio_free(gpio_nr);
+		printk(KERN_ERR "No interrupt for UART wake GPIO: %i\n",
+		       gpio_nr);
+		return;
+	}
+	enable_irq_wake(gpio_to_irq(gpio_nr));
+}
+
+int __init omap_serial_wakeup_init(void)
+{
+	if (!cpu_is_omap16xx())
+		return 0;
+
+	if (uart1_ck != NULL)
+		omap_serial_set_port_wakeup(37);
+	if (uart2_ck != NULL)
+		omap_serial_set_port_wakeup(18);
+	if (uart3_ck != NULL)
+		omap_serial_set_port_wakeup(49);
+
+	return 0;
+}
+
+#endif	/* CONFIG_OMAP_SERIAL_WAKE */
+
+static int __init omap_init(void)
+{
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
+	return platform_device_register(&serial_device);
+}
+arch_initcall(omap_init);