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, 380 insertions, 0 deletions

diff --git a/drivers/accessibility/braille/braille_console.c b/drivers/accessibility/braille/braille_console.c
new file mode 100644
index 000000000..c4d54a532
--- /dev/null
+++ b/drivers/accessibility/braille/braille_console.c
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Minimalistic braille device kernel support.
+ *
+ * By default, shows console messages on the braille device.
+ * Pressing Insert switches to VC browsing.
+ *
+ *  Copyright (C) Samuel Thibault <samuel.thibault@ens-lyon.org>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/console.h>
+#include <linux/notifier.h>
+
+#include <linux/selection.h>
+#include <linux/vt_kern.h>
+#include <linux/consolemap.h>
+
+#include <linux/keyboard.h>
+#include <linux/kbd_kern.h>
+#include <linux/input.h>
+
+MODULE_AUTHOR("samuel.thibault@ens-lyon.org");
+MODULE_DESCRIPTION("braille device");
+MODULE_LICENSE("GPL");
+
+/*
+ * Braille device support part.
+ */
+
+/* Emit various sounds */
+static bool sound;
+module_param(sound, bool, 0);
+MODULE_PARM_DESC(sound, "emit sounds");
+
+static void beep(unsigned int freq)
+{
+	if (sound)
+		kd_mksound(freq, HZ/10);
+}
+
+/* mini console */
+#define WIDTH 40
+#define BRAILLE_KEY KEY_INSERT
+static u16 console_buf[WIDTH];
+static int console_cursor;
+
+/* mini view of VC */
+static int vc_x, vc_y, lastvc_x, lastvc_y;
+
+/* show console ? (or show VC) */
+static int console_show = 1;
+/* pending newline ? */
+static int console_newline = 1;
+static int lastVC = -1;
+
+static struct console *braille_co;
+
+/* Very VisioBraille-specific */
+static void braille_write(u16 *buf)
+{
+	static u16 lastwrite[WIDTH];
+	unsigned char data[1 + 1 + 2*WIDTH + 2 + 1], csum = 0, *c;
+	u16 out;
+	int i;
+
+	if (!braille_co)
+		return;
+
+	if (!memcmp(lastwrite, buf, WIDTH * sizeof(*buf)))
+		return;
+	memcpy(lastwrite, buf, WIDTH * sizeof(*buf));
+
+#define SOH 1
+#define STX 2
+#define ETX 2
+#define EOT 4
+#define ENQ 5
+	data[0] = STX;
+	data[1] = '>';
+	csum ^= '>';
+	c = &data[2];
+	for (i = 0; i < WIDTH; i++) {
+		out = buf[i];
+		if (out >= 0x100)
+			out = '?';
+		else if (out == 0x00)
+			out = ' ';
+		csum ^= out;
+		if (out <= 0x05) {
+			*c++ = SOH;
+			out |= 0x40;
+		}
+		*c++ = out;
+	}
+
+	if (csum <= 0x05) {
+		*c++ = SOH;
+		csum |= 0x40;
+	}
+	*c++ = csum;
+	*c++ = ETX;
+
+	braille_co->write(braille_co, data, c - data);
+}
+
+/* Follow the VC cursor*/
+static void vc_follow_cursor(struct vc_data *vc)
+{
+	vc_x = vc->state.x - (vc->state.x % WIDTH);
+	vc_y = vc->state.y;
+	lastvc_x = vc->state.x;
+	lastvc_y = vc->state.y;
+}
+
+/* Maybe the VC cursor moved, if so follow it */
+static void vc_maybe_cursor_moved(struct vc_data *vc)
+{
+	if (vc->state.x != lastvc_x || vc->state.y != lastvc_y)
+		vc_follow_cursor(vc);
+}
+
+/* Show portion of VC at vc_x, vc_y */
+static void vc_refresh(struct vc_data *vc)
+{
+	u16 buf[WIDTH];
+	int i;
+
+	for (i = 0; i < WIDTH; i++) {
+		u16 glyph = screen_glyph(vc,
+				2 * (vc_x + i) + vc_y * vc->vc_size_row);
+		buf[i] = inverse_translate(vc, glyph, true);
+	}
+	braille_write(buf);
+}
+
+/*
+ * Link to keyboard
+ */
+
+static int keyboard_notifier_call(struct notifier_block *blk,
+				  unsigned long code, void *_param)
+{
+	struct keyboard_notifier_param *param = _param;
+	struct vc_data *vc = param->vc;
+	int ret = NOTIFY_OK;
+
+	if (!param->down)
+		return ret;
+
+	switch (code) {
+	case KBD_KEYCODE:
+		if (console_show) {
+			if (param->value == BRAILLE_KEY) {
+				console_show = 0;
+				beep(880);
+				vc_maybe_cursor_moved(vc);
+				vc_refresh(vc);
+				ret = NOTIFY_STOP;
+			}
+		} else {
+			ret = NOTIFY_STOP;
+			switch (param->value) {
+			case KEY_INSERT:
+				beep(440);
+				console_show = 1;
+				lastVC = -1;
+				braille_write(console_buf);
+				break;
+			case KEY_LEFT:
+				if (vc_x > 0) {
+					vc_x -= WIDTH;
+					if (vc_x < 0)
+						vc_x = 0;
+				} else if (vc_y >= 1) {
+					beep(880);
+					vc_y--;
+					vc_x = vc->vc_cols-WIDTH;
+				} else
+					beep(220);
+				break;
+			case KEY_RIGHT:
+				if (vc_x + WIDTH < vc->vc_cols) {
+					vc_x += WIDTH;
+				} else if (vc_y + 1 < vc->vc_rows) {
+					beep(880);
+					vc_y++;
+					vc_x = 0;
+				} else
+					beep(220);
+				break;
+			case KEY_DOWN:
+				if (vc_y + 1 < vc->vc_rows)
+					vc_y++;
+				else
+					beep(220);
+				break;
+			case KEY_UP:
+				if (vc_y >= 1)
+					vc_y--;
+				else
+					beep(220);
+				break;
+			case KEY_HOME:
+				vc_follow_cursor(vc);
+				break;
+			case KEY_PAGEUP:
+				vc_x = 0;
+				vc_y = 0;
+				break;
+			case KEY_PAGEDOWN:
+				vc_x = 0;
+				vc_y = vc->vc_rows-1;
+				break;
+			default:
+				ret = NOTIFY_OK;
+				break;
+			}
+			if (ret == NOTIFY_STOP)
+				vc_refresh(vc);
+		}
+		break;
+	case KBD_POST_KEYSYM:
+	{
+		unsigned char type = KTYP(param->value) - 0xf0;
+
+		if (type == KT_SPEC) {
+			unsigned char val = KVAL(param->value);
+			int on_off = -1;
+
+			switch (val) {
+			case KVAL(K_CAPS):
+				on_off = vt_get_leds(fg_console, VC_CAPSLOCK);
+				break;
+			case KVAL(K_NUM):
+				on_off = vt_get_leds(fg_console, VC_NUMLOCK);
+				break;
+			case KVAL(K_HOLD):
+				on_off = vt_get_leds(fg_console, VC_SCROLLOCK);
+				break;
+			}
+			if (on_off == 1)
+				beep(880);
+			else if (on_off == 0)
+				beep(440);
+		}
+	}
+		break;
+	case KBD_UNBOUND_KEYCODE:
+	case KBD_UNICODE:
+	case KBD_KEYSYM:
+		/* Unused */
+		break;
+	}
+	return ret;
+}
+
+static struct notifier_block keyboard_notifier_block = {
+	.notifier_call = keyboard_notifier_call,
+};
+
+static int vt_notifier_call(struct notifier_block *blk,
+			    unsigned long code, void *_param)
+{
+	struct vt_notifier_param *param = _param;
+	struct vc_data *vc = param->vc;
+
+	switch (code) {
+	case VT_ALLOCATE:
+		break;
+	case VT_DEALLOCATE:
+		break;
+	case VT_WRITE:
+	{
+		unsigned char c = param->c;
+
+		if (vc->vc_num != fg_console)
+			break;
+		switch (c) {
+		case '\b':
+		case 127:
+			if (console_cursor > 0) {
+				console_cursor--;
+				console_buf[console_cursor] = ' ';
+			}
+			break;
+		case '\n':
+		case '\v':
+		case '\f':
+		case '\r':
+			console_newline = 1;
+			break;
+		case '\t':
+			c = ' ';
+			fallthrough;
+		default:
+			if (c < 32)
+				/* Ignore other control sequences */
+				break;
+			if (console_newline) {
+				memset(console_buf, 0, sizeof(console_buf));
+				console_cursor = 0;
+				console_newline = 0;
+			}
+			if (console_cursor == WIDTH)
+				memmove(console_buf, &console_buf[1],
+					(WIDTH-1) * sizeof(*console_buf));
+			else
+				console_cursor++;
+			console_buf[console_cursor-1] = c;
+			break;
+		}
+		if (console_show)
+			braille_write(console_buf);
+		else {
+			vc_maybe_cursor_moved(vc);
+			vc_refresh(vc);
+		}
+		break;
+	}
+	case VT_UPDATE:
+		/* Maybe a VT switch, flush */
+		if (console_show) {
+			if (vc->vc_num != lastVC) {
+				lastVC = vc->vc_num;
+				memset(console_buf, 0, sizeof(console_buf));
+				console_cursor = 0;
+				braille_write(console_buf);
+			}
+		} else {
+			vc_maybe_cursor_moved(vc);
+			vc_refresh(vc);
+		}
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+static struct notifier_block vt_notifier_block = {
+	.notifier_call = vt_notifier_call,
+};
+
+/*
+ * Called from printk.c when console=brl is given
+ */
+
+int braille_register_console(struct console *console, int index,
+		char *console_options, char *braille_options)
+{
+	int ret;
+
+	if (!console_options)
+		/* Only support VisioBraille for now */
+		console_options = "57600o8";
+	if (braille_co)
+		return -ENODEV;
+	if (console->setup) {
+		ret = console->setup(console, console_options);
+		if (ret != 0)
+			return ret;
+	}
+	console->flags |= CON_ENABLED;
+	console->index = index;
+	braille_co = console;
+	register_keyboard_notifier(&keyboard_notifier_block);
+	register_vt_notifier(&vt_notifier_block);
+	return 1;
+}
+
+int braille_unregister_console(struct console *console)
+{
+	if (braille_co != console)
+		return -EINVAL;
+	unregister_keyboard_notifier(&keyboard_notifier_block);
+	unregister_vt_notifier(&vt_notifier_block);
+	braille_co = NULL;
+	return 1;
+}