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, 365 insertions, 0 deletions

diff --git a/drivers/media/platform/amphion/vpu.h b/drivers/media/platform/amphion/vpu.h
new file mode 100644
index 000000000..3bfe19372
--- /dev/null
+++ b/drivers/media/platform/amphion/vpu.h
@@ -0,0 +1,365 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020-2021 NXP
+ */
+
+#ifndef _AMPHION_VPU_H
+#define _AMPHION_VPU_H
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-mem2mem.h>
+#include <linux/mailbox_client.h>
+#include <linux/mailbox_controller.h>
+#include <linux/kfifo.h>
+
+#define VPU_TIMEOUT_WAKEUP	msecs_to_jiffies(200)
+#define VPU_TIMEOUT		msecs_to_jiffies(1000)
+#define VPU_INST_NULL_ID	(-1L)
+#define VPU_MSG_BUFFER_SIZE	(8192)
+
+enum imx_plat_type {
+	IMX8QXP = 0,
+	IMX8QM  = 1,
+	IMX8DM,
+	IMX8DX,
+	PLAT_TYPE_RESERVED
+};
+
+enum vpu_core_type {
+	VPU_CORE_TYPE_ENC = 0,
+	VPU_CORE_TYPE_DEC = 0x10,
+};
+
+struct vpu_dev;
+struct vpu_resources {
+	enum imx_plat_type plat_type;
+	u32 mreg_base;
+	int (*setup)(struct vpu_dev *vpu);
+	int (*setup_encoder)(struct vpu_dev *vpu);
+	int (*setup_decoder)(struct vpu_dev *vpu);
+	int (*reset)(struct vpu_dev *vpu);
+};
+
+struct vpu_buffer {
+	void *virt;
+	dma_addr_t phys;
+	u32 length;
+	u32 bytesused;
+	struct device *dev;
+};
+
+struct vpu_func {
+	struct video_device *vfd;
+	struct v4l2_m2m_dev *m2m_dev;
+	enum vpu_core_type type;
+	int function;
+};
+
+struct vpu_dev {
+	void __iomem *base;
+	struct platform_device *pdev;
+	struct device *dev;
+	struct mutex lock; /* protect vpu device */
+	const struct vpu_resources *res;
+	struct list_head cores;
+
+	struct v4l2_device v4l2_dev;
+	struct vpu_func encoder;
+	struct vpu_func decoder;
+	struct media_device mdev;
+
+	struct delayed_work watchdog_work;
+	void (*get_vpu)(struct vpu_dev *vpu);
+	void (*put_vpu)(struct vpu_dev *vpu);
+	void (*get_enc)(struct vpu_dev *vpu);
+	void (*put_enc)(struct vpu_dev *vpu);
+	void (*get_dec)(struct vpu_dev *vpu);
+	void (*put_dec)(struct vpu_dev *vpu);
+	atomic_t ref_vpu;
+	atomic_t ref_enc;
+	atomic_t ref_dec;
+
+	struct dentry *debugfs;
+};
+
+struct vpu_format {
+	u32 pixfmt;
+	u32 mem_planes;
+	u32 comp_planes;
+	u32 type;
+	u32 flags;
+	u32 width;
+	u32 height;
+	u32 sizeimage[VIDEO_MAX_PLANES];
+	u32 bytesperline[VIDEO_MAX_PLANES];
+	u32 field;
+	u32 sibling;
+};
+
+struct vpu_core_resources {
+	enum vpu_core_type type;
+	const char *fwname;
+	u32 stride;
+	u32 max_width;
+	u32 min_width;
+	u32 step_width;
+	u32 max_height;
+	u32 min_height;
+	u32 step_height;
+	u32 rpc_size;
+	u32 fwlog_size;
+	u32 act_size;
+};
+
+struct vpu_mbox {
+	char name[20];
+	struct mbox_client cl;
+	struct mbox_chan *ch;
+	bool block;
+};
+
+enum vpu_core_state {
+	VPU_CORE_DEINIT = 0,
+	VPU_CORE_ACTIVE,
+	VPU_CORE_HANG
+};
+
+struct vpu_core {
+	void __iomem *base;
+	struct platform_device *pdev;
+	struct device *dev;
+	struct device *parent;
+	struct device *pd;
+	struct device_link *pd_link;
+	struct mutex lock;     /* protect vpu core */
+	struct mutex cmd_lock; /* Lock vpu command */
+	struct list_head list;
+	enum vpu_core_type type;
+	int id;
+	const struct vpu_core_resources *res;
+	unsigned long instance_mask;
+	u32 supported_instance_count;
+	unsigned long hang_mask;
+	u32 request_count;
+	struct list_head instances;
+	enum vpu_core_state state;
+	u32 fw_version;
+
+	struct vpu_buffer fw;
+	struct vpu_buffer rpc;
+	struct vpu_buffer log;
+	struct vpu_buffer act;
+
+	struct vpu_mbox tx_type;
+	struct vpu_mbox tx_data;
+	struct vpu_mbox rx;
+	unsigned long cmd_seq;
+
+	wait_queue_head_t ack_wq;
+	struct completion cmp;
+	struct workqueue_struct *workqueue;
+	struct work_struct msg_work;
+	struct delayed_work msg_delayed_work;
+	struct kfifo msg_fifo;
+	void *msg_buffer;
+	unsigned int msg_buffer_size;
+
+	struct vpu_dev *vpu;
+	void *iface;
+
+	struct dentry *debugfs;
+	struct dentry *debugfs_fwlog;
+};
+
+enum vpu_codec_state {
+	VPU_CODEC_STATE_DEINIT = 1,
+	VPU_CODEC_STATE_CONFIGURED,
+	VPU_CODEC_STATE_START,
+	VPU_CODEC_STATE_STARTED,
+	VPU_CODEC_STATE_ACTIVE,
+	VPU_CODEC_STATE_SEEK,
+	VPU_CODEC_STATE_STOP,
+	VPU_CODEC_STATE_DRAIN,
+	VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE,
+};
+
+struct vpu_frame_info {
+	u32 type;
+	u32 id;
+	u32 sequence;
+	u32 luma;
+	u32 chroma_u;
+	u32 chroma_v;
+	u32 data_offset;
+	u32 flags;
+	u32 skipped;
+	s64 timestamp;
+};
+
+struct vpu_inst;
+struct vpu_inst_ops {
+	int (*ctrl_init)(struct vpu_inst *inst);
+	int (*start)(struct vpu_inst *inst, u32 type);
+	int (*stop)(struct vpu_inst *inst, u32 type);
+	int (*abort)(struct vpu_inst *inst);
+	bool (*check_ready)(struct vpu_inst *inst, unsigned int type);
+	void (*buf_done)(struct vpu_inst *inst, struct vpu_frame_info *frame);
+	void (*event_notify)(struct vpu_inst *inst, u32 event, void *data);
+	void (*release)(struct vpu_inst *inst);
+	void (*cleanup)(struct vpu_inst *inst);
+	void (*mem_request)(struct vpu_inst *inst,
+			    u32 enc_frame_size,
+			    u32 enc_frame_num,
+			    u32 ref_frame_size,
+			    u32 ref_frame_num,
+			    u32 act_frame_size,
+			    u32 act_frame_num);
+	void (*input_done)(struct vpu_inst *inst);
+	void (*stop_done)(struct vpu_inst *inst);
+	int (*process_output)(struct vpu_inst *inst, struct vb2_buffer *vb);
+	int (*process_capture)(struct vpu_inst *inst, struct vb2_buffer *vb);
+	int (*get_one_frame)(struct vpu_inst *inst, void *info);
+	void (*on_queue_empty)(struct vpu_inst *inst, u32 type);
+	int (*get_debug_info)(struct vpu_inst *inst, char *str, u32 size, u32 i);
+	void (*wait_prepare)(struct vpu_inst *inst);
+	void (*wait_finish)(struct vpu_inst *inst);
+};
+
+struct vpu_inst {
+	struct list_head list;
+	struct mutex lock; /* v4l2 and videobuf2 lock */
+	struct vpu_dev *vpu;
+	struct vpu_core *core;
+	struct device *dev;
+	int id;
+
+	struct v4l2_fh fh;
+	struct v4l2_ctrl_handler ctrl_handler;
+	atomic_t ref_count;
+	int (*release)(struct vpu_inst *inst);
+
+	enum vpu_codec_state state;
+	enum vpu_core_type type;
+
+	struct workqueue_struct *workqueue;
+	struct work_struct msg_work;
+	struct kfifo msg_fifo;
+	u8 msg_buffer[VPU_MSG_BUFFER_SIZE];
+
+	struct vpu_buffer stream_buffer;
+	bool use_stream_buffer;
+	struct vpu_buffer act;
+
+	struct list_head cmd_q;
+	void *pending;
+
+	struct vpu_inst_ops *ops;
+	const struct vpu_format *formats;
+	struct vpu_format out_format;
+	struct vpu_format cap_format;
+	u32 min_buffer_cap;
+	u32 min_buffer_out;
+	u32 total_input_count;
+
+	struct v4l2_rect crop;
+	u32 colorspace;
+	u8 ycbcr_enc;
+	u8 quantization;
+	u8 xfer_func;
+	u32 sequence;
+	u32 extra_size;
+
+	u32 flows[16];
+	u32 flow_idx;
+
+	pid_t pid;
+	pid_t tgid;
+	struct dentry *debugfs;
+
+	void *priv;
+};
+
+#define call_vop(inst, op, args...)					\
+	((inst)->ops->op ? (inst)->ops->op(inst, ##args) : 0)		\
+
+#define call_void_vop(inst, op, args...)				\
+	do {								\
+		if ((inst)->ops->op)					\
+			(inst)->ops->op(inst, ##args);				\
+	} while (0)
+
+enum {
+	VPU_BUF_STATE_IDLE = 0,
+	VPU_BUF_STATE_INUSE,
+	VPU_BUF_STATE_DECODED,
+	VPU_BUF_STATE_READY,
+	VPU_BUF_STATE_SKIP,
+	VPU_BUF_STATE_ERROR
+};
+
+struct vpu_vb2_buffer {
+	struct v4l2_m2m_buffer m2m_buf;
+	dma_addr_t luma;
+	dma_addr_t chroma_u;
+	dma_addr_t chroma_v;
+	unsigned int state;
+	u32 tag;
+};
+
+void vpu_writel(struct vpu_dev *vpu, u32 reg, u32 val);
+u32 vpu_readl(struct vpu_dev *vpu, u32 reg);
+
+static inline struct vpu_vb2_buffer *to_vpu_vb2_buffer(struct vb2_v4l2_buffer *vbuf)
+{
+	struct v4l2_m2m_buffer *m2m_buf = container_of(vbuf, struct v4l2_m2m_buffer, vb);
+
+	return container_of(m2m_buf, struct vpu_vb2_buffer, m2m_buf);
+}
+
+static inline const char *vpu_core_type_desc(enum vpu_core_type type)
+{
+	return type == VPU_CORE_TYPE_ENC ? "encoder" : "decoder";
+}
+
+static inline struct vpu_inst *to_inst(struct file *filp)
+{
+	return container_of(filp->private_data, struct vpu_inst, fh);
+}
+
+#define ctrl_to_inst(ctrl)	\
+	container_of((ctrl)->handler, struct vpu_inst, ctrl_handler)
+
+const struct v4l2_ioctl_ops *venc_get_ioctl_ops(void);
+const struct v4l2_file_operations *venc_get_fops(void);
+const struct v4l2_ioctl_ops *vdec_get_ioctl_ops(void);
+const struct v4l2_file_operations *vdec_get_fops(void);
+
+int vpu_add_func(struct vpu_dev *vpu, struct vpu_func *func);
+void vpu_remove_func(struct vpu_func *func);
+
+struct vpu_inst *vpu_inst_get(struct vpu_inst *inst);
+void vpu_inst_put(struct vpu_inst *inst);
+struct vpu_core *vpu_request_core(struct vpu_dev *vpu, enum vpu_core_type type);
+void vpu_release_core(struct vpu_core *core);
+int vpu_inst_register(struct vpu_inst *inst);
+int vpu_inst_unregister(struct vpu_inst *inst);
+const struct vpu_core_resources *vpu_get_resource(struct vpu_inst *inst);
+
+int vpu_inst_create_dbgfs_file(struct vpu_inst *inst);
+int vpu_inst_remove_dbgfs_file(struct vpu_inst *inst);
+int vpu_core_create_dbgfs_file(struct vpu_core *core);
+int vpu_core_remove_dbgfs_file(struct vpu_core *core);
+void vpu_inst_record_flow(struct vpu_inst *inst, u32 flow);
+
+int vpu_core_driver_init(void);
+void vpu_core_driver_exit(void);
+
+extern bool debug;
+#define vpu_trace(dev, fmt, arg...)					\
+	do {								\
+		if (debug)						\
+			dev_info(dev, "%s: " fmt, __func__, ## arg);	\
+	} while (0)
+
+#endif