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, 322 insertions, 0 deletions

diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
new file mode 100644
index 000000000..24440b498
--- /dev/null
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * linux/drivers/input/keyboard/omap-keypad.c
+ *
+ * OMAP Keypad Driver
+ *
+ * Copyright (C) 2003 Nokia Corporation
+ * Written by Timo Teräs <ext-timo.teras@nokia.com>
+ *
+ * Added support for H2 & H3 Keypad
+ * Copyright (C) 2004 Texas Instruments
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/platform_data/keypad-omap.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#undef NEW_BOARD_LEARNING_MODE
+
+static void omap_kp_tasklet(unsigned long);
+static void omap_kp_timer(struct timer_list *);
+
+static unsigned char keypad_state[8];
+static DEFINE_MUTEX(kp_enable_mutex);
+static int kp_enable = 1;
+static int kp_cur_group = -1;
+
+struct omap_kp {
+	struct input_dev *input;
+	struct timer_list timer;
+	int irq;
+	unsigned int rows;
+	unsigned int cols;
+	unsigned long delay;
+	unsigned int debounce;
+	unsigned short keymap[];
+};
+
+static DECLARE_TASKLET_DISABLED_OLD(kp_tasklet, omap_kp_tasklet);
+
+static unsigned int *row_gpios;
+static unsigned int *col_gpios;
+
+static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
+{
+	/* disable keyboard interrupt and schedule for handling */
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+	tasklet_schedule(&kp_tasklet);
+
+	return IRQ_HANDLED;
+}
+
+static void omap_kp_timer(struct timer_list *unused)
+{
+	tasklet_schedule(&kp_tasklet);
+}
+
+static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
+{
+	int col = 0;
+
+	/* disable keyboard interrupt and schedule for handling */
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+	/* read the keypad status */
+	omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+	for (col = 0; col < omap_kp->cols; col++) {
+		omap_writew(~(1 << col) & 0xff,
+			    OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+
+		udelay(omap_kp->delay);
+
+		state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
+					 OMAP_MPUIO_KBR_LATCH) & 0xff;
+	}
+	omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+	udelay(2);
+}
+
+static void omap_kp_tasklet(unsigned long data)
+{
+	struct omap_kp *omap_kp_data = (struct omap_kp *) data;
+	unsigned short *keycodes = omap_kp_data->input->keycode;
+	unsigned int row_shift = get_count_order(omap_kp_data->cols);
+	unsigned char new_state[8], changed, key_down = 0;
+	int col, row;
+
+	/* check for any changes */
+	omap_kp_scan_keypad(omap_kp_data, new_state);
+
+	/* check for changes and print those */
+	for (col = 0; col < omap_kp_data->cols; col++) {
+		changed = new_state[col] ^ keypad_state[col];
+		key_down |= new_state[col];
+		if (changed == 0)
+			continue;
+
+		for (row = 0; row < omap_kp_data->rows; row++) {
+			int key;
+			if (!(changed & (1 << row)))
+				continue;
+#ifdef NEW_BOARD_LEARNING_MODE
+			printk(KERN_INFO "omap-keypad: key %d-%d %s\n", col,
+			       row, (new_state[col] & (1 << row)) ?
+			       "pressed" : "released");
+#else
+			key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)];
+
+			if (!(kp_cur_group == (key & GROUP_MASK) ||
+			      kp_cur_group == -1))
+				continue;
+
+			kp_cur_group = key & GROUP_MASK;
+			input_report_key(omap_kp_data->input, key & ~GROUP_MASK,
+					 new_state[col] & (1 << row));
+#endif
+		}
+	}
+	input_sync(omap_kp_data->input);
+	memcpy(keypad_state, new_state, sizeof(keypad_state));
+
+	if (key_down) {
+		/* some key is pressed - keep irq disabled and use timer
+		 * to poll the keypad */
+		mod_timer(&omap_kp_data->timer, jiffies + HZ / 20);
+	} else {
+		/* enable interrupts */
+		omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+		kp_cur_group = -1;
+	}
+}
+
+static ssize_t omap_kp_enable_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%u\n", kp_enable);
+}
+
+static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	struct omap_kp *omap_kp = dev_get_drvdata(dev);
+	int state;
+
+	if (sscanf(buf, "%u", &state) != 1)
+		return -EINVAL;
+
+	if ((state != 1) && (state != 0))
+		return -EINVAL;
+
+	mutex_lock(&kp_enable_mutex);
+	if (state != kp_enable) {
+		if (state)
+			enable_irq(omap_kp->irq);
+		else
+			disable_irq(omap_kp->irq);
+		kp_enable = state;
+	}
+	mutex_unlock(&kp_enable_mutex);
+
+	return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, omap_kp_enable_show, omap_kp_enable_store);
+
+static int omap_kp_probe(struct platform_device *pdev)
+{
+	struct omap_kp *omap_kp;
+	struct input_dev *input_dev;
+	struct omap_kp_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	int i, col_idx, row_idx, ret;
+	unsigned int row_shift, keycodemax;
+
+	if (!pdata->rows || !pdata->cols || !pdata->keymap_data) {
+		printk(KERN_ERR "No rows, cols or keymap_data from pdata\n");
+		return -EINVAL;
+	}
+
+	row_shift = get_count_order(pdata->cols);
+	keycodemax = pdata->rows << row_shift;
+
+	omap_kp = kzalloc(struct_size(omap_kp, keymap, keycodemax), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!omap_kp || !input_dev) {
+		kfree(omap_kp);
+		input_free_device(input_dev);
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, omap_kp);
+
+	omap_kp->input = input_dev;
+
+	/* Disable the interrupt for the MPUIO keyboard */
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+	if (pdata->delay)
+		omap_kp->delay = pdata->delay;
+
+	if (pdata->row_gpios && pdata->col_gpios) {
+		row_gpios = pdata->row_gpios;
+		col_gpios = pdata->col_gpios;
+	}
+
+	omap_kp->rows = pdata->rows;
+	omap_kp->cols = pdata->cols;
+
+	col_idx = 0;
+	row_idx = 0;
+
+	timer_setup(&omap_kp->timer, omap_kp_timer, 0);
+
+	/* get the irq and init timer*/
+	kp_tasklet.data = (unsigned long) omap_kp;
+	tasklet_enable(&kp_tasklet);
+
+	ret = device_create_file(&pdev->dev, &dev_attr_enable);
+	if (ret < 0)
+		goto err2;
+
+	/* setup input device */
+	input_dev->name = "omap-keypad";
+	input_dev->phys = "omap-keypad/input0";
+	input_dev->dev.parent = &pdev->dev;
+
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->id.vendor = 0x0001;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+
+	if (pdata->rep)
+		__set_bit(EV_REP, input_dev->evbit);
+
+	ret = matrix_keypad_build_keymap(pdata->keymap_data, NULL,
+					 pdata->rows, pdata->cols,
+					 omap_kp->keymap, input_dev);
+	if (ret < 0)
+		goto err3;
+
+	ret = input_register_device(omap_kp->input);
+	if (ret < 0) {
+		printk(KERN_ERR "Unable to register omap-keypad input device\n");
+		goto err3;
+	}
+
+	if (pdata->dbounce)
+		omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_GPIO_DEBOUNCING);
+
+	/* scan current status and enable interrupt */
+	omap_kp_scan_keypad(omap_kp, keypad_state);
+	omap_kp->irq = platform_get_irq(pdev, 0);
+	if (omap_kp->irq >= 0) {
+		if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
+				"omap-keypad", omap_kp) < 0)
+			goto err4;
+	}
+	omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+	return 0;
+
+err4:
+	input_unregister_device(omap_kp->input);
+	input_dev = NULL;
+err3:
+	device_remove_file(&pdev->dev, &dev_attr_enable);
+err2:
+	for (i = row_idx - 1; i >= 0; i--)
+		gpio_free(row_gpios[i]);
+	for (i = col_idx - 1; i >= 0; i--)
+		gpio_free(col_gpios[i]);
+
+	kfree(omap_kp);
+	input_free_device(input_dev);
+
+	return -EINVAL;
+}
+
+static int omap_kp_remove(struct platform_device *pdev)
+{
+	struct omap_kp *omap_kp = platform_get_drvdata(pdev);
+
+	/* disable keypad interrupt handling */
+	tasklet_disable(&kp_tasklet);
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+	free_irq(omap_kp->irq, omap_kp);
+
+	timer_shutdown_sync(&omap_kp->timer);
+	tasklet_kill(&kp_tasklet);
+
+	/* unregister everything */
+	input_unregister_device(omap_kp->input);
+
+	kfree(omap_kp);
+
+	return 0;
+}
+
+static struct platform_driver omap_kp_driver = {
+	.probe		= omap_kp_probe,
+	.remove		= omap_kp_remove,
+	.driver		= {
+		.name	= "omap-keypad",
+	},
+};
+module_platform_driver(omap_kp_driver);
+
+MODULE_AUTHOR("Timo Teräs");
+MODULE_DESCRIPTION("OMAP Keypad Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap-keypad");