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, 220 insertions, 0 deletions

diff --git a/drivers/media/radio/si470x/radio-si470x.h b/drivers/media/radio/si470x/radio-si470x.h
new file mode 100644
index 000000000..e57ab54a2
--- /dev/null
+++ b/drivers/media/radio/si470x/radio-si470x.h
@@ -0,0 +1,220 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  drivers/media/radio/si470x/radio-si470x.h
+ *
+ *  Driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ */
+
+
+/* driver definitions */
+#define DRIVER_NAME "radio-si470x"
+
+
+/* kernel includes */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/videodev2.h>
+#include <linux/mutex.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-device.h>
+#include <asm/unaligned.h>
+
+
+
+/**************************************************************************
+ * Register Definitions
+ **************************************************************************/
+#define RADIO_REGISTER_SIZE	2	/* 16 register bit width */
+#define RADIO_REGISTER_NUM	16	/* DEVICEID   ... RDSD */
+#define RDS_REGISTER_NUM	6	/* STATUSRSSI ... RDSD */
+
+#define DEVICEID		0	/* Device ID */
+#define DEVICEID_PN		0xf000	/* bits 15..12: Part Number */
+#define DEVICEID_MFGID		0x0fff	/* bits 11..00: Manufacturer ID */
+
+#define SI_CHIPID		1	/* Chip ID */
+#define SI_CHIPID_REV		0xfc00	/* bits 15..10: Chip Version */
+#define SI_CHIPID_DEV		0x0200	/* bits 09..09: Device */
+#define SI_CHIPID_FIRMWARE	0x01ff	/* bits 08..00: Firmware Version */
+
+#define POWERCFG		2	/* Power Configuration */
+#define POWERCFG_DSMUTE		0x8000	/* bits 15..15: Softmute Disable */
+#define POWERCFG_DMUTE		0x4000	/* bits 14..14: Mute Disable */
+#define POWERCFG_MONO		0x2000	/* bits 13..13: Mono Select */
+#define POWERCFG_RDSM		0x0800	/* bits 11..11: RDS Mode (Si4701 only) */
+#define POWERCFG_SKMODE		0x0400	/* bits 10..10: Seek Mode */
+#define POWERCFG_SEEKUP		0x0200	/* bits 09..09: Seek Direction */
+#define POWERCFG_SEEK		0x0100	/* bits 08..08: Seek */
+#define POWERCFG_DISABLE	0x0040	/* bits 06..06: Powerup Disable */
+#define POWERCFG_ENABLE		0x0001	/* bits 00..00: Powerup Enable */
+
+#define CHANNEL			3	/* Channel */
+#define CHANNEL_TUNE		0x8000	/* bits 15..15: Tune */
+#define CHANNEL_CHAN		0x03ff	/* bits 09..00: Channel Select */
+
+#define SYSCONFIG1		4	/* System Configuration 1 */
+#define SYSCONFIG1_RDSIEN	0x8000	/* bits 15..15: RDS Interrupt Enable (Si4701 only) */
+#define SYSCONFIG1_STCIEN	0x4000	/* bits 14..14: Seek/Tune Complete Interrupt Enable */
+#define SYSCONFIG1_RDS		0x1000	/* bits 12..12: RDS Enable (Si4701 only) */
+#define SYSCONFIG1_DE		0x0800	/* bits 11..11: De-emphasis (0=75us 1=50us) */
+#define SYSCONFIG1_AGCD		0x0400	/* bits 10..10: AGC Disable */
+#define SYSCONFIG1_BLNDADJ	0x00c0	/* bits 07..06: Stereo/Mono Blend Level Adjustment */
+#define SYSCONFIG1_GPIO3	0x0030	/* bits 05..04: General Purpose I/O 3 */
+#define SYSCONFIG1_GPIO2	0x000c	/* bits 03..02: General Purpose I/O 2 */
+#define SYSCONFIG1_GPIO2_DIS	0x0000	/* Disable GPIO 2 interrupt */
+#define SYSCONFIG1_GPIO2_INT	0x0004	/* Enable STC/RDS interrupt */
+#define SYSCONFIG1_GPIO1	0x0003	/* bits 01..00: General Purpose I/O 1 */
+
+#define SYSCONFIG2		5	/* System Configuration 2 */
+#define SYSCONFIG2_SEEKTH	0xff00	/* bits 15..08: RSSI Seek Threshold */
+#define SYSCONFIG2_BAND		0x00c0	/* bits 07..06: Band Select */
+#define SYSCONFIG2_SPACE	0x0030	/* bits 05..04: Channel Spacing */
+#define SYSCONFIG2_VOLUME	0x000f	/* bits 03..00: Volume */
+
+#define SYSCONFIG3		6	/* System Configuration 3 */
+#define SYSCONFIG3_SMUTER	0xc000	/* bits 15..14: Softmute Attack/Recover Rate */
+#define SYSCONFIG3_SMUTEA	0x3000	/* bits 13..12: Softmute Attenuation */
+#define SYSCONFIG3_SKSNR	0x00f0	/* bits 07..04: Seek SNR Threshold */
+#define SYSCONFIG3_SKCNT	0x000f	/* bits 03..00: Seek FM Impulse Detection Threshold */
+
+#define TEST1			7	/* Test 1 */
+#define TEST1_AHIZEN		0x4000	/* bits 14..14: Audio High-Z Enable */
+
+#define TEST2			8	/* Test 2 */
+/* TEST2 only contains reserved bits */
+
+#define BOOTCONFIG		9	/* Boot Configuration */
+/* BOOTCONFIG only contains reserved bits */
+
+#define STATUSRSSI		10	/* Status RSSI */
+#define STATUSRSSI_RDSR		0x8000	/* bits 15..15: RDS Ready (Si4701 only) */
+#define STATUSRSSI_STC		0x4000	/* bits 14..14: Seek/Tune Complete */
+#define STATUSRSSI_SF		0x2000	/* bits 13..13: Seek Fail/Band Limit */
+#define STATUSRSSI_AFCRL	0x1000	/* bits 12..12: AFC Rail */
+#define STATUSRSSI_RDSS		0x0800	/* bits 11..11: RDS Synchronized (Si4701 only) */
+#define STATUSRSSI_BLERA	0x0600	/* bits 10..09: RDS Block A Errors (Si4701 only) */
+#define STATUSRSSI_ST		0x0100	/* bits 08..08: Stereo Indicator */
+#define STATUSRSSI_RSSI		0x00ff	/* bits 07..00: RSSI (Received Signal Strength Indicator) */
+
+#define READCHAN		11	/* Read Channel */
+#define READCHAN_BLERB		0xc000	/* bits 15..14: RDS Block D Errors (Si4701 only) */
+#define READCHAN_BLERC		0x3000	/* bits 13..12: RDS Block C Errors (Si4701 only) */
+#define READCHAN_BLERD		0x0c00	/* bits 11..10: RDS Block B Errors (Si4701 only) */
+#define READCHAN_READCHAN	0x03ff	/* bits 09..00: Read Channel */
+
+#define RDSA			12	/* RDSA */
+#define RDSA_RDSA		0xffff	/* bits 15..00: RDS Block A Data (Si4701 only) */
+
+#define RDSB			13	/* RDSB */
+#define RDSB_RDSB		0xffff	/* bits 15..00: RDS Block B Data (Si4701 only) */
+
+#define RDSC			14	/* RDSC */
+#define RDSC_RDSC		0xffff	/* bits 15..00: RDS Block C Data (Si4701 only) */
+
+#define RDSD			15	/* RDSD */
+#define RDSD_RDSD		0xffff	/* bits 15..00: RDS Block D Data (Si4701 only) */
+
+
+
+/**************************************************************************
+ * General Driver Definitions
+ **************************************************************************/
+
+/*
+ * si470x_device - private data
+ */
+struct si470x_device {
+	struct v4l2_device v4l2_dev;
+	struct video_device videodev;
+	struct v4l2_ctrl_handler hdl;
+	int band;
+
+	/* Silabs internal registers (0..15) */
+	unsigned short registers[RADIO_REGISTER_NUM];
+
+	/* RDS receive buffer */
+	wait_queue_head_t read_queue;
+	struct mutex lock;		/* buffer locking */
+	unsigned char *buffer;		/* size is always multiple of three */
+	unsigned int buf_size;
+	unsigned int rd_index;
+	unsigned int wr_index;
+
+	struct completion completion;
+	bool status_rssi_auto_update;	/* Does RSSI get updated automatic? */
+
+	/* si470x ops */
+
+	int (*get_register)(struct si470x_device *radio, int regnr);
+	int (*set_register)(struct si470x_device *radio, int regnr);
+	int (*fops_open)(struct file *file);
+	int (*fops_release)(struct file *file);
+	int (*vidioc_querycap)(struct file *file, void *priv,
+			       struct v4l2_capability *capability);
+
+#if IS_ENABLED(CONFIG_USB_SI470X)
+	/* reference to USB and video device */
+	struct usb_device *usbdev;
+	struct usb_interface *intf;
+	char *usb_buf;
+
+	/* Interrupt endpoint handling */
+	char *int_in_buffer;
+	struct usb_endpoint_descriptor *int_in_endpoint;
+	struct urb *int_in_urb;
+	int int_in_running;
+
+	/* scratch page */
+	unsigned char software_version;
+	unsigned char hardware_version;
+#endif
+
+#if IS_ENABLED(CONFIG_I2C_SI470X)
+	struct i2c_client *client;
+	struct gpio_desc *gpio_reset;
+#endif
+};
+
+
+
+/**************************************************************************
+ * Firmware Versions
+ **************************************************************************/
+
+#define RADIO_FW_VERSION	12
+
+
+
+/**************************************************************************
+ * Frequency Multiplicator
+ **************************************************************************/
+
+/*
+ * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW,
+ * 62.5 kHz otherwise.
+ * The tuner is able to have a channel spacing of 50, 100 or 200 kHz.
+ * tuner->capability is therefore set to V4L2_TUNER_CAP_LOW
+ * The FREQ_MUL is then: 1 MHz / 62.5 Hz = 16000
+ */
+#define FREQ_MUL (1000000 / 62.5)
+
+
+
+/**************************************************************************
+ * Common Functions
+ **************************************************************************/
+extern const struct video_device si470x_viddev_template;
+extern const struct v4l2_ctrl_ops si470x_ctrl_ops;
+int si470x_disconnect_check(struct si470x_device *radio);
+int si470x_set_freq(struct si470x_device *radio, unsigned int freq);
+int si470x_start(struct si470x_device *radio);
+int si470x_stop(struct si470x_device *radio);