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, 319 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c b/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c
new file mode 100644
index 000000000..2adb223a8
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c
@@ -0,0 +1,319 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Panel driver for the Samsung S6D27A1 480x800 DPI RGB panel.
+ * Found in the Samsung Galaxy Ace 2 GT-I8160 mobile phone.
+ */
+
+#include <drm/drm_mipi_dbi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/media-bus-format.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+
+#include <video/mipi_display.h>
+
+#define S6D27A1_PASSWD_L2	0xF0	/* Password Command for Level 2 Control */
+#define S6D27A1_RESCTL		0xB3	/* Resolution Select Control */
+#define S6D27A1_PANELCTL2	0xB4	/* ASG Signal Control */
+#define S6D27A1_READID1		0xDA	/* Read panel ID 1 */
+#define S6D27A1_READID2		0xDB	/* Read panel ID 2 */
+#define S6D27A1_READID3		0xDC	/* Read panel ID 3 */
+#define S6D27A1_DISPCTL		0xF2	/* Display Control */
+#define S6D27A1_MANPWR		0xF3	/* Manual Control */
+#define S6D27A1_PWRCTL1		0xF4	/* Power Control */
+#define S6D27A1_SRCCTL		0xF6	/* Source Control */
+#define S6D27A1_PANELCTL	0xF7	/* Panel Control*/
+
+static const u8 s6d27a1_dbi_read_commands[] = {
+	S6D27A1_READID1,
+	S6D27A1_READID2,
+	S6D27A1_READID3,
+	0, /* sentinel */
+};
+
+struct s6d27a1 {
+	struct device *dev;
+	struct mipi_dbi dbi;
+	struct drm_panel panel;
+	struct gpio_desc *reset;
+	struct regulator_bulk_data regulators[2];
+};
+
+static const struct drm_display_mode s6d27a1_480_800_mode = {
+	/*
+	 * The vendor driver states that the S6D27A1 panel
+	 * has a pixel clock frequency of 49920000 Hz / 2 = 24960000 Hz.
+	 */
+	.clock = 24960,
+	.hdisplay = 480,
+	.hsync_start = 480 + 63,
+	.hsync_end = 480 + 63 + 2,
+	.htotal = 480 + 63 + 2 + 63,
+	.vdisplay = 800,
+	.vsync_start = 800 + 11,
+	.vsync_end = 800 + 11 + 2,
+	.vtotal = 800 + 11 + 2 + 10,
+	.width_mm = 50,
+	.height_mm = 84,
+	.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
+};
+
+static inline struct s6d27a1 *to_s6d27a1(struct drm_panel *panel)
+{
+	return container_of(panel, struct s6d27a1, panel);
+}
+
+static void s6d27a1_read_mtp_id(struct s6d27a1 *ctx)
+{
+	struct mipi_dbi *dbi = &ctx->dbi;
+	u8 id1, id2, id3;
+	int ret;
+
+	ret = mipi_dbi_command_read(dbi, S6D27A1_READID1, &id1);
+	if (ret) {
+		dev_err(ctx->dev, "unable to read MTP ID 1\n");
+		return;
+	}
+	ret = mipi_dbi_command_read(dbi, S6D27A1_READID2, &id2);
+	if (ret) {
+		dev_err(ctx->dev, "unable to read MTP ID 2\n");
+		return;
+	}
+	ret = mipi_dbi_command_read(dbi, S6D27A1_READID3, &id3);
+	if (ret) {
+		dev_err(ctx->dev, "unable to read MTP ID 3\n");
+		return;
+	}
+	dev_info(ctx->dev, "MTP ID: %02x %02x %02x\n", id1, id2, id3);
+}
+
+static int s6d27a1_power_on(struct s6d27a1 *ctx)
+{
+	struct mipi_dbi *dbi = &ctx->dbi;
+	int ret;
+
+	/* Power up */
+	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->regulators),
+				    ctx->regulators);
+	if (ret) {
+		dev_err(ctx->dev, "failed to enable regulators: %d\n", ret);
+		return ret;
+	}
+
+	msleep(20);
+
+	/* Assert reset >=1 ms */
+	gpiod_set_value_cansleep(ctx->reset, 1);
+	usleep_range(1000, 5000);
+	/* De-assert reset */
+	gpiod_set_value_cansleep(ctx->reset, 0);
+	/* Wait >= 10 ms */
+	msleep(20);
+
+	/*
+	 * Exit sleep mode and initialize display - some hammering is
+	 * necessary.
+	 */
+	mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
+	mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
+	msleep(120);
+
+	/* Magic to unlock level 2 control of the display */
+	mipi_dbi_command(dbi, S6D27A1_PASSWD_L2, 0x5A, 0x5A);
+
+	/* Configure resolution to 480RGBx800 */
+	mipi_dbi_command(dbi, S6D27A1_RESCTL, 0x22);
+
+	mipi_dbi_command(dbi, S6D27A1_PANELCTL2, 0x00, 0x02, 0x03, 0x04, 0x05, 0x08, 0x00, 0x0c);
+
+	mipi_dbi_command(dbi, S6D27A1_MANPWR, 0x01, 0x00, 0x00, 0x08, 0x08, 0x02, 0x00);
+
+	mipi_dbi_command(dbi, S6D27A1_DISPCTL, 0x19, 0x00, 0x08, 0x0D, 0x03, 0x41, 0x3F);
+
+	mipi_dbi_command(dbi, S6D27A1_PWRCTL1, 0x00, 0x00, 0x00, 0x00, 0x55,
+					0x44, 0x05, 0x88, 0x4B, 0x50);
+
+	mipi_dbi_command(dbi, S6D27A1_SRCCTL, 0x03, 0x09, 0x8A, 0x00, 0x01, 0x16);
+
+	mipi_dbi_command(dbi, S6D27A1_PANELCTL, 0x00, 0x05, 0x06, 0x07, 0x08,
+					0x01, 0x09, 0x0D, 0x0A, 0x0E,
+					0x0B, 0x0F, 0x0C, 0x10, 0x01,
+					0x11, 0x12, 0x13, 0x14, 0x05,
+					0x06, 0x07, 0x08, 0x01, 0x09,
+					0x0D, 0x0A, 0x0E, 0x0B, 0x0F,
+					0x0C, 0x10, 0x01, 0x11, 0x12,
+					0x13, 0x14);
+
+	/* lock the level 2 control */
+	mipi_dbi_command(dbi, S6D27A1_PASSWD_L2, 0xA5, 0xA5);
+
+	s6d27a1_read_mtp_id(ctx);
+
+	return 0;
+}
+
+static int s6d27a1_power_off(struct s6d27a1 *ctx)
+{
+	/* Go into RESET and disable regulators */
+	gpiod_set_value_cansleep(ctx->reset, 1);
+	return regulator_bulk_disable(ARRAY_SIZE(ctx->regulators),
+				      ctx->regulators);
+}
+
+static int s6d27a1_unprepare(struct drm_panel *panel)
+{
+	struct s6d27a1 *ctx = to_s6d27a1(panel);
+	struct mipi_dbi *dbi = &ctx->dbi;
+
+	mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE);
+	msleep(120);
+	return s6d27a1_power_off(to_s6d27a1(panel));
+}
+
+static int s6d27a1_disable(struct drm_panel *panel)
+{
+	struct s6d27a1 *ctx = to_s6d27a1(panel);
+	struct mipi_dbi *dbi = &ctx->dbi;
+
+	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
+	msleep(25);
+
+	return 0;
+}
+
+static int s6d27a1_prepare(struct drm_panel *panel)
+{
+	return s6d27a1_power_on(to_s6d27a1(panel));
+}
+
+static int s6d27a1_enable(struct drm_panel *panel)
+{
+	struct s6d27a1 *ctx = to_s6d27a1(panel);
+	struct mipi_dbi *dbi = &ctx->dbi;
+
+	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
+
+	return 0;
+}
+
+static int s6d27a1_get_modes(struct drm_panel *panel,
+			    struct drm_connector *connector)
+{
+	struct s6d27a1 *ctx = to_s6d27a1(panel);
+	struct drm_display_mode *mode;
+	static const u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+
+	mode = drm_mode_duplicate(connector->dev, &s6d27a1_480_800_mode);
+	if (!mode) {
+		dev_err(ctx->dev, "failed to add mode\n");
+		return -ENOMEM;
+	}
+
+	connector->display_info.bpc = 8;
+	connector->display_info.width_mm = mode->width_mm;
+	connector->display_info.height_mm = mode->height_mm;
+	connector->display_info.bus_flags =
+		DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE;
+	drm_display_info_set_bus_formats(&connector->display_info,
+					 &bus_format, 1);
+
+	drm_mode_set_name(mode);
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+
+	drm_mode_probed_add(connector, mode);
+
+	return 1;
+}
+
+static const struct drm_panel_funcs s6d27a1_drm_funcs = {
+	.disable = s6d27a1_disable,
+	.unprepare = s6d27a1_unprepare,
+	.prepare = s6d27a1_prepare,
+	.enable = s6d27a1_enable,
+	.get_modes = s6d27a1_get_modes,
+};
+
+static int s6d27a1_probe(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	struct s6d27a1 *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->dev = dev;
+
+	/*
+	 * VCI   is the analog voltage supply
+	 * VCCIO is the digital I/O voltage supply
+	 */
+	ctx->regulators[0].supply = "vci";
+	ctx->regulators[1].supply = "vccio";
+	ret = devm_regulator_bulk_get(dev,
+				      ARRAY_SIZE(ctx->regulators),
+				      ctx->regulators);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to get regulators\n");
+
+	ctx->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset)) {
+		ret = PTR_ERR(ctx->reset);
+		return dev_err_probe(dev, ret, "no RESET GPIO\n");
+	}
+
+	ret = mipi_dbi_spi_init(spi, &ctx->dbi, NULL);
+	if (ret)
+		return dev_err_probe(dev, ret, "MIPI DBI init failed\n");
+
+	ctx->dbi.read_commands = s6d27a1_dbi_read_commands;
+
+	drm_panel_init(&ctx->panel, dev, &s6d27a1_drm_funcs,
+		       DRM_MODE_CONNECTOR_DPI);
+
+	ret = drm_panel_of_backlight(&ctx->panel);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to add backlight\n");
+
+	spi_set_drvdata(spi, ctx);
+
+	drm_panel_add(&ctx->panel);
+
+	return 0;
+}
+
+static void s6d27a1_remove(struct spi_device *spi)
+{
+	struct s6d27a1 *ctx = spi_get_drvdata(spi);
+
+	drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id s6d27a1_match[] = {
+	{ .compatible = "samsung,s6d27a1", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, s6d27a1_match);
+
+static struct spi_driver s6d27a1_driver = {
+	.probe		= s6d27a1_probe,
+	.remove		= s6d27a1_remove,
+	.driver		= {
+		.name	= "s6d27a1-panel",
+		.of_match_table = s6d27a1_match,
+	},
+};
+module_spi_driver(s6d27a1_driver);
+
+MODULE_AUTHOR("Markuss Broks <markuss.broks@gmail.com>");
+MODULE_DESCRIPTION("Samsung S6D27A1 panel driver");
+MODULE_LICENSE("GPL v2");