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, 320 insertions, 0 deletions

diff --git a/drivers/media/platform/xilinx/xilinx-vip.c b/drivers/media/platform/xilinx/xilinx-vip.c
new file mode 100644
index 000000000..5b214bf7f
--- /dev/null
+++ b/drivers/media/platform/xilinx/xilinx-vip.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Xilinx Video IP Core
+ *
+ * Copyright (C) 2013-2015 Ideas on Board
+ * Copyright (C) 2013-2015 Xilinx, Inc.
+ *
+ * Contacts: Hyun Kwon <hyun.kwon@xilinx.com>
+ *           Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+#include <dt-bindings/media/xilinx-vip.h>
+
+#include "xilinx-vip.h"
+
+/* -----------------------------------------------------------------------------
+ * Helper functions
+ */
+
+static const struct xvip_video_format xvip_video_formats[] = {
+	{ XVIP_VF_YUV_422, 8, NULL, MEDIA_BUS_FMT_UYVY8_1X16,
+	  2, V4L2_PIX_FMT_YUYV },
+	{ XVIP_VF_YUV_444, 8, NULL, MEDIA_BUS_FMT_VUY8_1X24,
+	  3, V4L2_PIX_FMT_YUV444 },
+	{ XVIP_VF_RBG, 8, NULL, MEDIA_BUS_FMT_RBG888_1X24,
+	  3, 0 },
+	{ XVIP_VF_MONO_SENSOR, 8, "mono", MEDIA_BUS_FMT_Y8_1X8,
+	  1, V4L2_PIX_FMT_GREY },
+	{ XVIP_VF_MONO_SENSOR, 8, "rggb", MEDIA_BUS_FMT_SRGGB8_1X8,
+	  1, V4L2_PIX_FMT_SRGGB8 },
+	{ XVIP_VF_MONO_SENSOR, 8, "grbg", MEDIA_BUS_FMT_SGRBG8_1X8,
+	  1, V4L2_PIX_FMT_SGRBG8 },
+	{ XVIP_VF_MONO_SENSOR, 8, "gbrg", MEDIA_BUS_FMT_SGBRG8_1X8,
+	  1, V4L2_PIX_FMT_SGBRG8 },
+	{ XVIP_VF_MONO_SENSOR, 8, "bggr", MEDIA_BUS_FMT_SBGGR8_1X8,
+	  1, V4L2_PIX_FMT_SBGGR8 },
+	{ XVIP_VF_MONO_SENSOR, 12, "mono", MEDIA_BUS_FMT_Y12_1X12,
+	  2, V4L2_PIX_FMT_Y12 },
+};
+
+/**
+ * xvip_get_format_by_code - Retrieve format information for a media bus code
+ * @code: the format media bus code
+ *
+ * Return: a pointer to the format information structure corresponding to the
+ * given V4L2 media bus format @code, or ERR_PTR if no corresponding format can
+ * be found.
+ */
+const struct xvip_video_format *xvip_get_format_by_code(unsigned int code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(xvip_video_formats); ++i) {
+		const struct xvip_video_format *format = &xvip_video_formats[i];
+
+		if (format->code == code)
+			return format;
+	}
+
+	return ERR_PTR(-EINVAL);
+}
+EXPORT_SYMBOL_GPL(xvip_get_format_by_code);
+
+/**
+ * xvip_get_format_by_fourcc - Retrieve format information for a 4CC
+ * @fourcc: the format 4CC
+ *
+ * Return: a pointer to the format information structure corresponding to the
+ * given V4L2 format @fourcc. If not found, return a pointer to the first
+ * available format (V4L2_PIX_FMT_YUYV).
+ */
+const struct xvip_video_format *xvip_get_format_by_fourcc(u32 fourcc)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(xvip_video_formats); ++i) {
+		const struct xvip_video_format *format = &xvip_video_formats[i];
+
+		if (format->fourcc == fourcc)
+			return format;
+	}
+
+	return &xvip_video_formats[0];
+}
+EXPORT_SYMBOL_GPL(xvip_get_format_by_fourcc);
+
+/**
+ * xvip_of_get_format - Parse a device tree node and return format information
+ * @node: the device tree node
+ *
+ * Read the xlnx,video-format, xlnx,video-width and xlnx,cfa-pattern properties
+ * from the device tree @node passed as an argument and return the corresponding
+ * format information.
+ *
+ * Return: a pointer to the format information structure corresponding to the
+ * format name and width, or ERR_PTR if no corresponding format can be found.
+ */
+const struct xvip_video_format *xvip_of_get_format(struct device_node *node)
+{
+	const char *pattern = "mono";
+	unsigned int vf_code;
+	unsigned int i;
+	u32 width;
+	int ret;
+
+	ret = of_property_read_u32(node, "xlnx,video-format", &vf_code);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	ret = of_property_read_u32(node, "xlnx,video-width", &width);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	if (vf_code == XVIP_VF_MONO_SENSOR)
+		of_property_read_string(node, "xlnx,cfa-pattern", &pattern);
+
+	for (i = 0; i < ARRAY_SIZE(xvip_video_formats); ++i) {
+		const struct xvip_video_format *format = &xvip_video_formats[i];
+
+		if (format->vf_code != vf_code || format->width != width)
+			continue;
+
+		if (vf_code == XVIP_VF_MONO_SENSOR &&
+		    strcmp(pattern, format->pattern))
+			continue;
+
+		return format;
+	}
+
+	return ERR_PTR(-EINVAL);
+}
+EXPORT_SYMBOL_GPL(xvip_of_get_format);
+
+/**
+ * xvip_set_format_size - Set the media bus frame format size
+ * @format: V4L2 frame format on media bus
+ * @fmt: media bus format
+ *
+ * Set the media bus frame format size. The width / height from the subdevice
+ * format are set to the given media bus format. The new format size is stored
+ * in @format. The width and height are clamped using default min / max values.
+ */
+void xvip_set_format_size(struct v4l2_mbus_framefmt *format,
+			  const struct v4l2_subdev_format *fmt)
+{
+	format->width = clamp_t(unsigned int, fmt->format.width,
+				XVIP_MIN_WIDTH, XVIP_MAX_WIDTH);
+	format->height = clamp_t(unsigned int, fmt->format.height,
+			 XVIP_MIN_HEIGHT, XVIP_MAX_HEIGHT);
+}
+EXPORT_SYMBOL_GPL(xvip_set_format_size);
+
+/**
+ * xvip_clr_or_set - Clear or set the register with a bitmask
+ * @xvip: Xilinx Video IP device
+ * @addr: address of register
+ * @mask: bitmask to be set or cleared
+ * @set: boolean flag indicating whether to set or clear
+ *
+ * Clear or set the register at address @addr with a bitmask @mask depending on
+ * the boolean flag @set. When the flag @set is true, the bitmask is set in
+ * the register, otherwise the bitmask is cleared from the register
+ * when the flag @set is false.
+ *
+ * Fox example, this function can be used to set a control with a boolean value
+ * requested by users. If the caller knows whether to set or clear in the first
+ * place, the caller should call xvip_clr() or xvip_set() directly instead of
+ * using this function.
+ */
+void xvip_clr_or_set(struct xvip_device *xvip, u32 addr, u32 mask, bool set)
+{
+	u32 reg;
+
+	reg = xvip_read(xvip, addr);
+	reg = set ? reg | mask : reg & ~mask;
+	xvip_write(xvip, addr, reg);
+}
+EXPORT_SYMBOL_GPL(xvip_clr_or_set);
+
+/**
+ * xvip_clr_and_set - Clear and set the register with a bitmask
+ * @xvip: Xilinx Video IP device
+ * @addr: address of register
+ * @clr: bitmask to be cleared
+ * @set: bitmask to be set
+ *
+ * Clear a bit(s) of mask @clr in the register at address @addr, then set
+ * a bit(s) of mask @set in the register after.
+ */
+void xvip_clr_and_set(struct xvip_device *xvip, u32 addr, u32 clr, u32 set)
+{
+	u32 reg;
+
+	reg = xvip_read(xvip, addr);
+	reg &= ~clr;
+	reg |= set;
+	xvip_write(xvip, addr, reg);
+}
+EXPORT_SYMBOL_GPL(xvip_clr_and_set);
+
+int xvip_init_resources(struct xvip_device *xvip)
+{
+	struct platform_device *pdev = to_platform_device(xvip->dev);
+
+	xvip->iomem = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(xvip->iomem))
+		return PTR_ERR(xvip->iomem);
+
+	xvip->clk = devm_clk_get(xvip->dev, NULL);
+	if (IS_ERR(xvip->clk))
+		return PTR_ERR(xvip->clk);
+
+	clk_prepare_enable(xvip->clk);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xvip_init_resources);
+
+void xvip_cleanup_resources(struct xvip_device *xvip)
+{
+	clk_disable_unprepare(xvip->clk);
+}
+EXPORT_SYMBOL_GPL(xvip_cleanup_resources);
+
+/* -----------------------------------------------------------------------------
+ * Subdev operations handlers
+ */
+
+/**
+ * xvip_enum_mbus_code - Enumerate the media format code
+ * @subdev: V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @code: returning media bus code
+ *
+ * Enumerate the media bus code of the subdevice. Return the corresponding
+ * pad format code. This function only works for subdevices with fixed format
+ * on all pads. Subdevices with multiple format should have their own
+ * function to enumerate mbus codes.
+ *
+ * Return: 0 if the media bus code is found, or -EINVAL if the format index
+ * is not valid.
+ */
+int xvip_enum_mbus_code(struct v4l2_subdev *subdev,
+			struct v4l2_subdev_state *sd_state,
+			struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct v4l2_mbus_framefmt *format;
+
+	/* Enumerating frame sizes based on the active configuration isn't
+	 * supported yet.
+	 */
+	if (code->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		return -EINVAL;
+
+	if (code->index)
+		return -EINVAL;
+
+	format = v4l2_subdev_get_try_format(subdev, sd_state, code->pad);
+
+	code->code = format->code;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xvip_enum_mbus_code);
+
+/**
+ * xvip_enum_frame_size - Enumerate the media bus frame size
+ * @subdev: V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @fse: returning media bus frame size
+ *
+ * This function is a drop-in implementation of the subdev enum_frame_size pad
+ * operation. It assumes that the subdevice has one sink pad and one source
+ * pad, and that the format on the source pad is always identical to the
+ * format on the sink pad. Entities with different requirements need to
+ * implement their own enum_frame_size handlers.
+ *
+ * Return: 0 if the media bus frame size is found, or -EINVAL
+ * if the index or the code is not valid.
+ */
+int xvip_enum_frame_size(struct v4l2_subdev *subdev,
+			 struct v4l2_subdev_state *sd_state,
+			 struct v4l2_subdev_frame_size_enum *fse)
+{
+	struct v4l2_mbus_framefmt *format;
+
+	/* Enumerating frame sizes based on the active configuration isn't
+	 * supported yet.
+	 */
+	if (fse->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		return -EINVAL;
+
+	format = v4l2_subdev_get_try_format(subdev, sd_state, fse->pad);
+
+	if (fse->index || fse->code != format->code)
+		return -EINVAL;
+
+	if (fse->pad == XVIP_PAD_SINK) {
+		fse->min_width = XVIP_MIN_WIDTH;
+		fse->max_width = XVIP_MAX_WIDTH;
+		fse->min_height = XVIP_MIN_HEIGHT;
+		fse->max_height = XVIP_MAX_HEIGHT;
+	} else {
+		/* The size on the source pad is fixed and always identical to
+		 * the size on the sink pad.
+		 */
+		fse->min_width = format->width;
+		fse->max_width = format->width;
+		fse->min_height = format->height;
+		fse->max_height = format->height;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xvip_enum_frame_size);