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, 330 insertions, 0 deletions

diff --git a/drivers/media/usb/gspca/sq905c.c b/drivers/media/usb/gspca/sq905c.c
new file mode 100644
index 000000000..6ca947aef
--- /dev/null
+++ b/drivers/media/usb/gspca/sq905c.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * SQ905C subdriver
+ *
+ * Copyright (C) 2009 Theodore Kilgore
+ */
+
+/*
+ *
+ * This driver uses work done in
+ * libgphoto2/camlibs/digigr8, Copyright (C) Theodore Kilgore.
+ *
+ * This driver has also used as a base the sq905c driver
+ * and may contain code fragments from it.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define MODULE_NAME "sq905c"
+
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include "gspca.h"
+
+MODULE_AUTHOR("Theodore Kilgore <kilgota@auburn.edu>");
+MODULE_DESCRIPTION("GSPCA/SQ905C USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* Default timeouts, in ms */
+#define SQ905C_CMD_TIMEOUT 500
+#define SQ905C_DATA_TIMEOUT 1000
+
+/* Maximum transfer size to use. */
+#define SQ905C_MAX_TRANSFER 0x8000
+
+#define FRAME_HEADER_LEN 0x50
+
+/* Commands. These go in the "value" slot. */
+#define SQ905C_CLEAR   0xa0		/* clear everything */
+#define SQ905C_GET_ID  0x14f4		/* Read version number */
+#define SQ905C_CAPTURE_LOW 0xa040	/* Starts capture at 160x120 */
+#define SQ905C_CAPTURE_MED 0x1440	/* Starts capture at 320x240 */
+#define SQ905C_CAPTURE_HI 0x2840	/* Starts capture at 320x240 */
+
+/* For capture, this must go in the "index" slot. */
+#define SQ905C_CAPTURE_INDEX 0x110f
+
+/* Structure to hold all of our device specific stuff */
+struct sd {
+	struct gspca_dev gspca_dev;	/* !! must be the first item */
+	const struct v4l2_pix_format *cap_mode;
+	/* Driver stuff */
+	struct work_struct work_struct;
+	struct workqueue_struct *work_thread;
+};
+
+/*
+ * Most of these cameras will do 640x480 and 320x240. 160x120 works
+ * in theory but gives very poor output. Therefore, not supported.
+ * The 0x2770:0x9050 cameras have max resolution of 320x240.
+ */
+static struct v4l2_pix_format sq905c_mode[] = {
+	{ 320, 240, V4L2_PIX_FMT_SQ905C, V4L2_FIELD_NONE,
+		.bytesperline = 320,
+		.sizeimage = 320 * 240,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0},
+	{ 640, 480, V4L2_PIX_FMT_SQ905C, V4L2_FIELD_NONE,
+		.bytesperline = 640,
+		.sizeimage = 640 * 480,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0}
+};
+
+/* Send a command to the camera. */
+static int sq905c_command(struct gspca_dev *gspca_dev, u16 command, u16 index)
+{
+	int ret;
+
+	ret = usb_control_msg(gspca_dev->dev,
+			      usb_sndctrlpipe(gspca_dev->dev, 0),
+			      USB_REQ_SYNCH_FRAME,                /* request */
+			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			      command, index, NULL, 0,
+			      SQ905C_CMD_TIMEOUT);
+	if (ret < 0) {
+		pr_err("%s: usb_control_msg failed (%d)\n", __func__, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int sq905c_read(struct gspca_dev *gspca_dev, u16 command, u16 index,
+		       int size)
+{
+	int ret;
+
+	ret = usb_control_msg(gspca_dev->dev,
+			      usb_rcvctrlpipe(gspca_dev->dev, 0),
+			      USB_REQ_SYNCH_FRAME,		/* request */
+			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			      command, index, gspca_dev->usb_buf, size,
+			      SQ905C_CMD_TIMEOUT);
+	if (ret < 0) {
+		pr_err("%s: usb_control_msg failed (%d)\n", __func__, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * This function is called as a workqueue function and runs whenever the camera
+ * is streaming data. Because it is a workqueue function it is allowed to sleep
+ * so we can use synchronous USB calls. To avoid possible collisions with other
+ * threads attempting to use gspca_dev->usb_buf we take the usb_lock when
+ * performing USB operations using it. In practice we don't really need this
+ * as the camera doesn't provide any controls.
+ */
+static void sq905c_dostream(struct work_struct *work)
+{
+	struct sd *dev = container_of(work, struct sd, work_struct);
+	struct gspca_dev *gspca_dev = &dev->gspca_dev;
+	int bytes_left; /* bytes remaining in current frame. */
+	int data_len;   /* size to use for the next read. */
+	int act_len;
+	int packet_type;
+	int ret;
+	u8 *buffer;
+
+	buffer = kmalloc(SQ905C_MAX_TRANSFER, GFP_KERNEL);
+	if (!buffer) {
+		pr_err("Couldn't allocate USB buffer\n");
+		goto quit_stream;
+	}
+
+	while (gspca_dev->present && gspca_dev->streaming) {
+#ifdef CONFIG_PM
+		if (gspca_dev->frozen)
+			break;
+#endif
+		/* Request the header, which tells the size to download */
+		ret = usb_bulk_msg(gspca_dev->dev,
+				usb_rcvbulkpipe(gspca_dev->dev, 0x81),
+				buffer, FRAME_HEADER_LEN, &act_len,
+				SQ905C_DATA_TIMEOUT);
+		gspca_dbg(gspca_dev, D_STREAM,
+			  "Got %d bytes out of %d for header\n",
+			  act_len, FRAME_HEADER_LEN);
+		if (ret < 0 || act_len < FRAME_HEADER_LEN)
+			goto quit_stream;
+		/* size is read from 4 bytes starting 0x40, little endian */
+		bytes_left = buffer[0x40]|(buffer[0x41]<<8)|(buffer[0x42]<<16)
+					|(buffer[0x43]<<24);
+		gspca_dbg(gspca_dev, D_STREAM, "bytes_left = 0x%x\n",
+			  bytes_left);
+		/* We keep the header. It has other information, too. */
+		packet_type = FIRST_PACKET;
+		gspca_frame_add(gspca_dev, packet_type,
+				buffer, FRAME_HEADER_LEN);
+		while (bytes_left > 0 && gspca_dev->present) {
+			data_len = bytes_left > SQ905C_MAX_TRANSFER ?
+				SQ905C_MAX_TRANSFER : bytes_left;
+			ret = usb_bulk_msg(gspca_dev->dev,
+				usb_rcvbulkpipe(gspca_dev->dev, 0x81),
+				buffer, data_len, &act_len,
+				SQ905C_DATA_TIMEOUT);
+			if (ret < 0 || act_len < data_len)
+				goto quit_stream;
+			gspca_dbg(gspca_dev, D_STREAM,
+				  "Got %d bytes out of %d for frame\n",
+				  data_len, bytes_left);
+			bytes_left -= data_len;
+			if (bytes_left == 0)
+				packet_type = LAST_PACKET;
+			else
+				packet_type = INTER_PACKET;
+			gspca_frame_add(gspca_dev, packet_type,
+					buffer, data_len);
+		}
+	}
+quit_stream:
+	if (gspca_dev->present) {
+		mutex_lock(&gspca_dev->usb_lock);
+		sq905c_command(gspca_dev, SQ905C_CLEAR, 0);
+		mutex_unlock(&gspca_dev->usb_lock);
+	}
+	kfree(buffer);
+}
+
+/* This function is called at probe time just before sd_init */
+static int sd_config(struct gspca_dev *gspca_dev,
+		const struct usb_device_id *id)
+{
+	struct cam *cam = &gspca_dev->cam;
+	struct sd *dev = (struct sd *) gspca_dev;
+	int ret;
+
+	gspca_dbg(gspca_dev, D_PROBE,
+		  "SQ9050 camera detected (vid/pid 0x%04X:0x%04X)\n",
+		  id->idVendor, id->idProduct);
+
+	ret = sq905c_command(gspca_dev, SQ905C_GET_ID, 0);
+	if (ret < 0) {
+		gspca_err(gspca_dev, "Get version command failed\n");
+		return ret;
+	}
+
+	ret = sq905c_read(gspca_dev, 0xf5, 0, 20);
+	if (ret < 0) {
+		gspca_err(gspca_dev, "Reading version command failed\n");
+		return ret;
+	}
+	/* Note we leave out the usb id and the manufacturing date */
+	gspca_dbg(gspca_dev, D_PROBE,
+		  "SQ9050 ID string: %02x - %*ph\n",
+		  gspca_dev->usb_buf[3], 6, gspca_dev->usb_buf + 14);
+
+	cam->cam_mode = sq905c_mode;
+	cam->nmodes = 2;
+	if (gspca_dev->usb_buf[15] == 0)
+		cam->nmodes = 1;
+	/* We don't use the buffer gspca allocates so make it small. */
+	cam->bulk_size = 32;
+	cam->bulk = 1;
+	INIT_WORK(&dev->work_struct, sq905c_dostream);
+	return 0;
+}
+
+/* called on streamoff with alt==0 and on disconnect */
+/* the usb_lock is held at entry - restore on exit */
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+	struct sd *dev = (struct sd *) gspca_dev;
+
+	/* wait for the work queue to terminate */
+	mutex_unlock(&gspca_dev->usb_lock);
+	/* This waits for sq905c_dostream to finish */
+	destroy_workqueue(dev->work_thread);
+	dev->work_thread = NULL;
+	mutex_lock(&gspca_dev->usb_lock);
+}
+
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+	/* connect to the camera and reset it. */
+	return sq905c_command(gspca_dev, SQ905C_CLEAR, 0);
+}
+
+/* Set up for getting frames. */
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+	struct sd *dev = (struct sd *) gspca_dev;
+	int ret;
+
+	dev->cap_mode = gspca_dev->cam.cam_mode;
+	/* "Open the shutter" and set size, to start capture */
+	switch (gspca_dev->pixfmt.width) {
+	case 640:
+		gspca_dbg(gspca_dev, D_STREAM, "Start streaming at high resolution\n");
+		dev->cap_mode++;
+		ret = sq905c_command(gspca_dev, SQ905C_CAPTURE_HI,
+						SQ905C_CAPTURE_INDEX);
+		break;
+	default: /* 320 */
+		gspca_dbg(gspca_dev, D_STREAM, "Start streaming at medium resolution\n");
+		ret = sq905c_command(gspca_dev, SQ905C_CAPTURE_MED,
+						SQ905C_CAPTURE_INDEX);
+	}
+
+	if (ret < 0) {
+		gspca_err(gspca_dev, "Start streaming command failed\n");
+		return ret;
+	}
+	/* Start the workqueue function to do the streaming */
+	dev->work_thread = create_singlethread_workqueue(MODULE_NAME);
+	if (!dev->work_thread)
+		return -ENOMEM;
+
+	queue_work(dev->work_thread, &dev->work_struct);
+
+	return 0;
+}
+
+/* Table of supported USB devices */
+static const struct usb_device_id device_table[] = {
+	{USB_DEVICE(0x2770, 0x905c)},
+	{USB_DEVICE(0x2770, 0x9050)},
+	{USB_DEVICE(0x2770, 0x9051)},
+	{USB_DEVICE(0x2770, 0x9052)},
+	{USB_DEVICE(0x2770, 0x913d)},
+	{}
+};
+
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+	.name   = MODULE_NAME,
+	.config = sd_config,
+	.init   = sd_init,
+	.start  = sd_start,
+	.stop0  = sd_stop0,
+};
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	return gspca_dev_probe(intf, id,
+			&sd_desc,
+			sizeof(struct sd),
+			THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+	.name       = MODULE_NAME,
+	.id_table   = device_table,
+	.probe      = sd_probe,
+	.disconnect = gspca_disconnect,
+#ifdef CONFIG_PM
+	.suspend = gspca_suspend,
+	.resume  = gspca_resume,
+	.reset_resume = gspca_resume,
+#endif
+};
+
+module_usb_driver(sd_driver);