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, 235 insertions, 0 deletions

diff --git a/drivers/media/pci/cx88/cx88-vbi.c b/drivers/media/pci/cx88/cx88-vbi.c
new file mode 100644
index 000000000..469aeaa72
--- /dev/null
+++ b/drivers/media/pci/cx88/cx88-vbi.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ */
+
+#include "cx88.h"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+static unsigned int vbi_debug;
+module_param(vbi_debug, int, 0644);
+MODULE_PARM_DESC(vbi_debug, "enable debug messages [vbi]");
+
+#define dprintk(level, fmt, arg...) do {			\
+	if (vbi_debug >= level)					\
+		printk(KERN_DEBUG pr_fmt("%s: vbi:" fmt),	\
+			__func__, ##arg);			\
+} while (0)
+
+/* ------------------------------------------------------------------ */
+
+int cx8800_vbi_fmt(struct file *file, void *priv,
+		   struct v4l2_format *f)
+{
+	struct cx8800_dev *dev = video_drvdata(file);
+
+	f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
+	f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
+	f->fmt.vbi.offset = 244;
+
+	if (dev->core->tvnorm & V4L2_STD_525_60) {
+		/* ntsc */
+		f->fmt.vbi.sampling_rate = 28636363;
+		f->fmt.vbi.start[0] = 10;
+		f->fmt.vbi.start[1] = 273;
+		f->fmt.vbi.count[0] = VBI_LINE_NTSC_COUNT;
+		f->fmt.vbi.count[1] = VBI_LINE_NTSC_COUNT;
+
+	} else if (dev->core->tvnorm & V4L2_STD_625_50) {
+		/* pal */
+		f->fmt.vbi.sampling_rate = 35468950;
+		f->fmt.vbi.start[0] = V4L2_VBI_ITU_625_F1_START + 5;
+		f->fmt.vbi.start[1] = V4L2_VBI_ITU_625_F2_START + 5;
+		f->fmt.vbi.count[0] = VBI_LINE_PAL_COUNT;
+		f->fmt.vbi.count[1] = VBI_LINE_PAL_COUNT;
+	}
+	return 0;
+}
+
+static int cx8800_start_vbi_dma(struct cx8800_dev    *dev,
+				struct cx88_dmaqueue *q,
+				struct cx88_buffer   *buf)
+{
+	struct cx88_core *core = dev->core;
+
+	/* setup fifo + format */
+	cx88_sram_channel_setup(dev->core, &cx88_sram_channels[SRAM_CH24],
+				VBI_LINE_LENGTH, buf->risc.dma);
+
+	cx_write(MO_VBOS_CONTROL, (1 << 18) |  /* comb filter delay fixup */
+				  (1 << 15) |  /* enable vbi capture */
+				  (1 << 11));
+
+	/* reset counter */
+	cx_write(MO_VBI_GPCNTRL, GP_COUNT_CONTROL_RESET);
+	q->count = 0;
+
+	/* enable irqs */
+	cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_VIDINT);
+	cx_set(MO_VID_INTMSK, 0x0f0088);
+
+	/* enable capture */
+	cx_set(VID_CAPTURE_CONTROL, 0x18);
+
+	/* start dma */
+	cx_set(MO_DEV_CNTRL2, (1 << 5));
+	cx_set(MO_VID_DMACNTRL, 0x88);
+
+	return 0;
+}
+
+void cx8800_stop_vbi_dma(struct cx8800_dev *dev)
+{
+	struct cx88_core *core = dev->core;
+
+	/* stop dma */
+	cx_clear(MO_VID_DMACNTRL, 0x88);
+
+	/* disable capture */
+	cx_clear(VID_CAPTURE_CONTROL, 0x18);
+
+	/* disable irqs */
+	cx_clear(MO_PCI_INTMSK, PCI_INT_VIDINT);
+	cx_clear(MO_VID_INTMSK, 0x0f0088);
+}
+
+int cx8800_restart_vbi_queue(struct cx8800_dev    *dev,
+			     struct cx88_dmaqueue *q)
+{
+	struct cx88_buffer *buf;
+
+	if (list_empty(&q->active))
+		return 0;
+
+	buf = list_entry(q->active.next, struct cx88_buffer, list);
+	dprintk(2, "restart_queue [%p/%d]: restart dma\n",
+		buf, buf->vb.vb2_buf.index);
+	cx8800_start_vbi_dma(dev, q, buf);
+	return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+static int queue_setup(struct vb2_queue *q,
+		       unsigned int *num_buffers, unsigned int *num_planes,
+		       unsigned int sizes[], struct device *alloc_devs[])
+{
+	struct cx8800_dev *dev = q->drv_priv;
+
+	*num_planes = 1;
+	if (dev->core->tvnorm & V4L2_STD_525_60)
+		sizes[0] = VBI_LINE_NTSC_COUNT * VBI_LINE_LENGTH * 2;
+	else
+		sizes[0] = VBI_LINE_PAL_COUNT * VBI_LINE_LENGTH * 2;
+	return 0;
+}
+
+static int buffer_prepare(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
+	struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
+	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
+	unsigned int lines;
+	unsigned int size;
+
+	if (dev->core->tvnorm & V4L2_STD_525_60)
+		lines = VBI_LINE_NTSC_COUNT;
+	else
+		lines = VBI_LINE_PAL_COUNT;
+	size = lines * VBI_LINE_LENGTH * 2;
+	if (vb2_plane_size(vb, 0) < size)
+		return -EINVAL;
+	vb2_set_plane_payload(vb, 0, size);
+
+	return cx88_risc_buffer(dev->pci, &buf->risc, sgt->sgl,
+				0, VBI_LINE_LENGTH * lines,
+				VBI_LINE_LENGTH, 0,
+				lines);
+}
+
+static void buffer_finish(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
+	struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
+	struct cx88_riscmem *risc = &buf->risc;
+
+	if (risc->cpu)
+		dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
+				  risc->dma);
+	memset(risc, 0, sizeof(*risc));
+}
+
+static void buffer_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
+	struct cx88_buffer    *buf = container_of(vbuf, struct cx88_buffer, vb);
+	struct cx88_buffer    *prev;
+	struct cx88_dmaqueue  *q    = &dev->vbiq;
+
+	/* add jump to start */
+	buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 8);
+	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
+	buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
+
+	if (list_empty(&q->active)) {
+		list_add_tail(&buf->list, &q->active);
+		dprintk(2, "[%p/%d] vbi_queue - first active\n",
+			buf, buf->vb.vb2_buf.index);
+
+	} else {
+		buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
+		prev = list_entry(q->active.prev, struct cx88_buffer, list);
+		list_add_tail(&buf->list, &q->active);
+		prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+		dprintk(2, "[%p/%d] buffer_queue - append to active\n",
+			buf, buf->vb.vb2_buf.index);
+	}
+}
+
+static int start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct cx8800_dev *dev = q->drv_priv;
+	struct cx88_dmaqueue *dmaq = &dev->vbiq;
+	struct cx88_buffer *buf = list_entry(dmaq->active.next,
+			struct cx88_buffer, list);
+
+	cx8800_start_vbi_dma(dev, dmaq, buf);
+	return 0;
+}
+
+static void stop_streaming(struct vb2_queue *q)
+{
+	struct cx8800_dev *dev = q->drv_priv;
+	struct cx88_core *core = dev->core;
+	struct cx88_dmaqueue *dmaq = &dev->vbiq;
+	unsigned long flags;
+
+	cx_clear(MO_VID_DMACNTRL, 0x11);
+	cx_clear(VID_CAPTURE_CONTROL, 0x06);
+	cx8800_stop_vbi_dma(dev);
+	spin_lock_irqsave(&dev->slock, flags);
+	while (!list_empty(&dmaq->active)) {
+		struct cx88_buffer *buf = list_entry(dmaq->active.next,
+			struct cx88_buffer, list);
+
+		list_del(&buf->list);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+	spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+const struct vb2_ops cx8800_vbi_qops = {
+	.queue_setup    = queue_setup,
+	.buf_prepare  = buffer_prepare,
+	.buf_finish = buffer_finish,
+	.buf_queue    = buffer_queue,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.start_streaming = start_streaming,
+	.stop_streaming = stop_streaming,
+};