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, 268 insertions, 0 deletions

diff --git a/drivers/media/platform/renesas/vsp1/vsp1_uif.c b/drivers/media/platform/renesas/vsp1/vsp1_uif.c
new file mode 100644
index 000000000..83d7f17df
--- /dev/null
+++ b/drivers/media/platform/renesas/vsp1/vsp1_uif.c
@@ -0,0 +1,268 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * vsp1_uif.c  --  R-Car VSP1 User Logic Interface
+ *
+ * Copyright (C) 2017-2018 Laurent Pinchart
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+
+#include <linux/device.h>
+#include <linux/gfp.h>
+#include <linux/sys_soc.h>
+
+#include <media/media-entity.h>
+#include <media/v4l2-subdev.h>
+
+#include "vsp1.h"
+#include "vsp1_dl.h"
+#include "vsp1_entity.h"
+#include "vsp1_uif.h"
+
+#define UIF_MIN_SIZE				4U
+#define UIF_MAX_SIZE				8190U
+
+/* -----------------------------------------------------------------------------
+ * Device Access
+ */
+
+static inline u32 vsp1_uif_read(struct vsp1_uif *uif, u32 reg)
+{
+	return vsp1_read(uif->entity.vsp1,
+			 uif->entity.index * VI6_UIF_OFFSET + reg);
+}
+
+static inline void vsp1_uif_write(struct vsp1_uif *uif,
+				  struct vsp1_dl_body *dlb, u32 reg, u32 data)
+{
+	vsp1_dl_body_write(dlb, reg + uif->entity.index * VI6_UIF_OFFSET, data);
+}
+
+u32 vsp1_uif_get_crc(struct vsp1_uif *uif)
+{
+	return vsp1_uif_read(uif, VI6_UIF_DISCOM_DOCMCCRCR);
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Pad Operations
+ */
+
+static const unsigned int uif_codes[] = {
+	MEDIA_BUS_FMT_ARGB8888_1X32,
+	MEDIA_BUS_FMT_AHSV8888_1X32,
+	MEDIA_BUS_FMT_AYUV8_1X32,
+};
+
+static int uif_enum_mbus_code(struct v4l2_subdev *subdev,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_mbus_code_enum *code)
+{
+	return vsp1_subdev_enum_mbus_code(subdev, sd_state, code, uif_codes,
+					  ARRAY_SIZE(uif_codes));
+}
+
+static int uif_enum_frame_size(struct v4l2_subdev *subdev,
+			       struct v4l2_subdev_state *sd_state,
+			       struct v4l2_subdev_frame_size_enum *fse)
+{
+	return vsp1_subdev_enum_frame_size(subdev, sd_state, fse,
+					   UIF_MIN_SIZE,
+					   UIF_MIN_SIZE, UIF_MAX_SIZE,
+					   UIF_MAX_SIZE);
+}
+
+static int uif_set_format(struct v4l2_subdev *subdev,
+			    struct v4l2_subdev_state *sd_state,
+			    struct v4l2_subdev_format *fmt)
+{
+	return vsp1_subdev_set_pad_format(subdev, sd_state, fmt, uif_codes,
+					  ARRAY_SIZE(uif_codes),
+					  UIF_MIN_SIZE, UIF_MIN_SIZE,
+					  UIF_MAX_SIZE, UIF_MAX_SIZE);
+}
+
+static int uif_get_selection(struct v4l2_subdev *subdev,
+			     struct v4l2_subdev_state *sd_state,
+			     struct v4l2_subdev_selection *sel)
+{
+	struct vsp1_uif *uif = to_uif(subdev);
+	struct v4l2_subdev_state *config;
+	struct v4l2_mbus_framefmt *format;
+	int ret = 0;
+
+	if (sel->pad != UIF_PAD_SINK)
+		return -EINVAL;
+
+	mutex_lock(&uif->entity.lock);
+
+	config = vsp1_entity_get_pad_config(&uif->entity, sd_state,
+					    sel->which);
+	if (!config) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		format = vsp1_entity_get_pad_format(&uif->entity, config,
+						    UIF_PAD_SINK);
+		sel->r.left = 0;
+		sel->r.top = 0;
+		sel->r.width = format->width;
+		sel->r.height = format->height;
+		break;
+
+	case V4L2_SEL_TGT_CROP:
+		sel->r = *vsp1_entity_get_pad_selection(&uif->entity, config,
+							sel->pad, sel->target);
+		break;
+
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+done:
+	mutex_unlock(&uif->entity.lock);
+	return ret;
+}
+
+static int uif_set_selection(struct v4l2_subdev *subdev,
+			     struct v4l2_subdev_state *sd_state,
+			     struct v4l2_subdev_selection *sel)
+{
+	struct vsp1_uif *uif = to_uif(subdev);
+	struct v4l2_subdev_state *config;
+	struct v4l2_mbus_framefmt *format;
+	struct v4l2_rect *selection;
+	int ret = 0;
+
+	if (sel->pad != UIF_PAD_SINK ||
+	    sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	mutex_lock(&uif->entity.lock);
+
+	config = vsp1_entity_get_pad_config(&uif->entity, sd_state,
+					    sel->which);
+	if (!config) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	/* The crop rectangle must be inside the input frame. */
+	format = vsp1_entity_get_pad_format(&uif->entity, config, UIF_PAD_SINK);
+
+	sel->r.left = clamp_t(unsigned int, sel->r.left, 0, format->width - 1);
+	sel->r.top = clamp_t(unsigned int, sel->r.top, 0, format->height - 1);
+	sel->r.width = clamp_t(unsigned int, sel->r.width, UIF_MIN_SIZE,
+			       format->width - sel->r.left);
+	sel->r.height = clamp_t(unsigned int, sel->r.height, UIF_MIN_SIZE,
+				format->height - sel->r.top);
+
+	/* Store the crop rectangle. */
+	selection = vsp1_entity_get_pad_selection(&uif->entity, config,
+						  sel->pad, V4L2_SEL_TGT_CROP);
+	*selection = sel->r;
+
+done:
+	mutex_unlock(&uif->entity.lock);
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Operations
+ */
+
+static const struct v4l2_subdev_pad_ops uif_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
+	.enum_mbus_code = uif_enum_mbus_code,
+	.enum_frame_size = uif_enum_frame_size,
+	.get_fmt = vsp1_subdev_get_pad_format,
+	.set_fmt = uif_set_format,
+	.get_selection = uif_get_selection,
+	.set_selection = uif_set_selection,
+};
+
+static const struct v4l2_subdev_ops uif_ops = {
+	.pad    = &uif_pad_ops,
+};
+
+/* -----------------------------------------------------------------------------
+ * VSP1 Entity Operations
+ */
+
+static void uif_configure_stream(struct vsp1_entity *entity,
+				 struct vsp1_pipeline *pipe,
+				 struct vsp1_dl_list *dl,
+				 struct vsp1_dl_body *dlb)
+{
+	struct vsp1_uif *uif = to_uif(&entity->subdev);
+	const struct v4l2_rect *crop;
+	unsigned int left;
+	unsigned int width;
+
+	vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMPMR,
+		       VI6_UIF_DISCOM_DOCMPMR_SEL(9));
+
+	crop = vsp1_entity_get_pad_selection(entity, entity->config,
+					     UIF_PAD_SINK, V4L2_SEL_TGT_CROP);
+
+	left = crop->left;
+	width = crop->width;
+
+	/* On M3-W the horizontal coordinates are twice the register value. */
+	if (uif->m3w_quirk) {
+		left /= 2;
+		width /= 2;
+	}
+
+	vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSPXR, left);
+	vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSPYR, crop->top);
+	vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSZXR, width);
+	vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSZYR, crop->height);
+
+	vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMCR,
+		       VI6_UIF_DISCOM_DOCMCR_CMPR);
+}
+
+static const struct vsp1_entity_operations uif_entity_ops = {
+	.configure_stream = uif_configure_stream,
+};
+
+/* -----------------------------------------------------------------------------
+ * Initialization and Cleanup
+ */
+
+static const struct soc_device_attribute vsp1_r8a7796[] = {
+	{ .soc_id = "r8a7796" },
+	{ /* sentinel */ }
+};
+
+struct vsp1_uif *vsp1_uif_create(struct vsp1_device *vsp1, unsigned int index)
+{
+	struct vsp1_uif *uif;
+	char name[6];
+	int ret;
+
+	uif = devm_kzalloc(vsp1->dev, sizeof(*uif), GFP_KERNEL);
+	if (!uif)
+		return ERR_PTR(-ENOMEM);
+
+	if (soc_device_match(vsp1_r8a7796))
+		uif->m3w_quirk = true;
+
+	uif->entity.ops = &uif_entity_ops;
+	uif->entity.type = VSP1_ENTITY_UIF;
+	uif->entity.index = index;
+
+	/* The datasheet names the two UIF instances UIF4 and UIF5. */
+	sprintf(name, "uif.%u", index + 4);
+	ret = vsp1_entity_init(vsp1, &uif->entity, name, 2, &uif_ops,
+			       MEDIA_ENT_F_PROC_VIDEO_STATISTICS);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	return uif;
+}