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, 255 insertions, 0 deletions

diff --git a/drivers/media/usb/dvb-usb/usb-urb.c b/drivers/media/usb/dvb-usb/usb-urb.c
new file mode 100644
index 000000000..9771f0954
--- /dev/null
+++ b/drivers/media/usb/dvb-usb/usb-urb.c
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0
+/* usb-urb.c is part of the DVB USB library.
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
+ * see dvb-usb-init.c for copyright information.
+ *
+ * This file keeps functions for initializing and handling the
+ * BULK and ISOC USB data transfers in a generic way.
+ * Can be used for DVB-only and also, that's the plan, for
+ * Hybrid USB devices (analog and DVB).
+ */
+#include "dvb-usb-common.h"
+
+/* URB stuff for streaming */
+static void usb_urb_complete(struct urb *urb)
+{
+	struct usb_data_stream *stream = urb->context;
+	int ptype = usb_pipetype(urb->pipe);
+	int i;
+	u8 *b;
+
+	deb_uxfer("'%s' urb completed. status: %d, length: %d/%d, pack_num: %d, errors: %d\n",
+		ptype == PIPE_ISOCHRONOUS ? "isoc" : "bulk",
+		urb->status,urb->actual_length,urb->transfer_buffer_length,
+		urb->number_of_packets,urb->error_count);
+
+	switch (urb->status) {
+		case 0:         /* success */
+		case -ETIMEDOUT:    /* NAK */
+			break;
+		case -ECONNRESET:   /* kill */
+		case -ENOENT:
+		case -ESHUTDOWN:
+			return;
+		default:        /* error */
+			deb_ts("urb completion error %d.\n", urb->status);
+			break;
+	}
+
+	b = (u8 *) urb->transfer_buffer;
+	switch (ptype) {
+		case PIPE_ISOCHRONOUS:
+			for (i = 0; i < urb->number_of_packets; i++) {
+
+				if (urb->iso_frame_desc[i].status != 0)
+					deb_ts("iso frame descriptor has an error: %d\n",urb->iso_frame_desc[i].status);
+				else if (urb->iso_frame_desc[i].actual_length > 0)
+					stream->complete(stream, b + urb->iso_frame_desc[i].offset, urb->iso_frame_desc[i].actual_length);
+
+				urb->iso_frame_desc[i].status = 0;
+				urb->iso_frame_desc[i].actual_length = 0;
+			}
+			debug_dump(b,20,deb_uxfer);
+			break;
+		case PIPE_BULK:
+			if (urb->actual_length > 0)
+				stream->complete(stream, b, urb->actual_length);
+			break;
+		default:
+			err("unknown endpoint type in completion handler.");
+			return;
+	}
+	usb_submit_urb(urb,GFP_ATOMIC);
+}
+
+int usb_urb_kill(struct usb_data_stream *stream)
+{
+	int i;
+	for (i = 0; i < stream->urbs_submitted; i++) {
+		deb_ts("killing URB no. %d.\n",i);
+
+		/* stop the URB */
+		usb_kill_urb(stream->urb_list[i]);
+	}
+	stream->urbs_submitted = 0;
+	return 0;
+}
+
+int usb_urb_submit(struct usb_data_stream *stream)
+{
+	int i,ret;
+	for (i = 0; i < stream->urbs_initialized; i++) {
+		deb_ts("submitting URB no. %d\n",i);
+		if ((ret = usb_submit_urb(stream->urb_list[i],GFP_ATOMIC))) {
+			err("could not submit URB no. %d - get them all back",i);
+			usb_urb_kill(stream);
+			return ret;
+		}
+		stream->urbs_submitted++;
+	}
+	return 0;
+}
+
+static int usb_free_stream_buffers(struct usb_data_stream *stream)
+{
+	if (stream->state & USB_STATE_URB_BUF) {
+		while (stream->buf_num) {
+			stream->buf_num--;
+			deb_mem("freeing buffer %d\n",stream->buf_num);
+			usb_free_coherent(stream->udev, stream->buf_size,
+					  stream->buf_list[stream->buf_num],
+					  stream->dma_addr[stream->buf_num]);
+		}
+	}
+
+	stream->state &= ~USB_STATE_URB_BUF;
+
+	return 0;
+}
+
+static int usb_allocate_stream_buffers(struct usb_data_stream *stream, int num, unsigned long size)
+{
+	stream->buf_num = 0;
+	stream->buf_size = size;
+
+	deb_mem("all in all I will use %lu bytes for streaming\n",num*size);
+
+	for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {
+		deb_mem("allocating buffer %d\n",stream->buf_num);
+		if (( stream->buf_list[stream->buf_num] =
+					usb_alloc_coherent(stream->udev, size, GFP_KERNEL,
+					&stream->dma_addr[stream->buf_num]) ) == NULL) {
+			deb_mem("not enough memory for urb-buffer allocation.\n");
+			usb_free_stream_buffers(stream);
+			return -ENOMEM;
+		}
+		deb_mem("buffer %d: %p (dma: %Lu)\n",
+			stream->buf_num,
+stream->buf_list[stream->buf_num], (long long)stream->dma_addr[stream->buf_num]);
+		memset(stream->buf_list[stream->buf_num],0,size);
+		stream->state |= USB_STATE_URB_BUF;
+	}
+	deb_mem("allocation successful\n");
+
+	return 0;
+}
+
+static int usb_bulk_urb_init(struct usb_data_stream *stream)
+{
+	int i, j;
+
+	if ((i = usb_allocate_stream_buffers(stream,stream->props.count,
+					stream->props.u.bulk.buffersize)) < 0)
+		return i;
+
+	/* allocate the URBs */
+	for (i = 0; i < stream->props.count; i++) {
+		stream->urb_list[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!stream->urb_list[i]) {
+			deb_mem("not enough memory for urb_alloc_urb!.\n");
+			for (j = 0; j < i; j++)
+				usb_free_urb(stream->urb_list[j]);
+			return -ENOMEM;
+		}
+		usb_fill_bulk_urb( stream->urb_list[i], stream->udev,
+				usb_rcvbulkpipe(stream->udev,stream->props.endpoint),
+				stream->buf_list[i],
+				stream->props.u.bulk.buffersize,
+				usb_urb_complete, stream);
+
+		stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+		stream->urb_list[i]->transfer_dma = stream->dma_addr[i];
+		stream->urbs_initialized++;
+	}
+	return 0;
+}
+
+static int usb_isoc_urb_init(struct usb_data_stream *stream)
+{
+	int i,j;
+
+	if ((i = usb_allocate_stream_buffers(stream,stream->props.count,
+					stream->props.u.isoc.framesize*stream->props.u.isoc.framesperurb)) < 0)
+		return i;
+
+	/* allocate the URBs */
+	for (i = 0; i < stream->props.count; i++) {
+		struct urb *urb;
+		int frame_offset = 0;
+
+		stream->urb_list[i] = usb_alloc_urb(stream->props.u.isoc.framesperurb, GFP_KERNEL);
+		if (!stream->urb_list[i]) {
+			deb_mem("not enough memory for urb_alloc_urb!\n");
+			for (j = 0; j < i; j++)
+				usb_free_urb(stream->urb_list[j]);
+			return -ENOMEM;
+		}
+
+		urb = stream->urb_list[i];
+
+		urb->dev = stream->udev;
+		urb->context = stream;
+		urb->complete = usb_urb_complete;
+		urb->pipe = usb_rcvisocpipe(stream->udev,stream->props.endpoint);
+		urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
+		urb->interval = stream->props.u.isoc.interval;
+		urb->number_of_packets = stream->props.u.isoc.framesperurb;
+		urb->transfer_buffer_length = stream->buf_size;
+		urb->transfer_buffer = stream->buf_list[i];
+		urb->transfer_dma = stream->dma_addr[i];
+
+		for (j = 0; j < stream->props.u.isoc.framesperurb; j++) {
+			urb->iso_frame_desc[j].offset = frame_offset;
+			urb->iso_frame_desc[j].length = stream->props.u.isoc.framesize;
+			frame_offset += stream->props.u.isoc.framesize;
+		}
+
+		stream->urbs_initialized++;
+	}
+	return 0;
+}
+
+int usb_urb_init(struct usb_data_stream *stream, struct usb_data_stream_properties *props)
+{
+	if (stream == NULL || props == NULL)
+		return -EINVAL;
+
+	memcpy(&stream->props, props, sizeof(*props));
+
+	usb_clear_halt(stream->udev,usb_rcvbulkpipe(stream->udev,stream->props.endpoint));
+
+	if (stream->complete == NULL) {
+		err("there is no data callback - this doesn't make sense.");
+		return -EINVAL;
+	}
+
+	switch (stream->props.type) {
+		case USB_BULK:
+			return usb_bulk_urb_init(stream);
+		case USB_ISOC:
+			return usb_isoc_urb_init(stream);
+		default:
+			err("unknown URB-type for data transfer.");
+			return -EINVAL;
+	}
+}
+
+int usb_urb_exit(struct usb_data_stream *stream)
+{
+	int i;
+
+	usb_urb_kill(stream);
+
+	for (i = 0; i < stream->urbs_initialized; i++) {
+		if (stream->urb_list[i] != NULL) {
+			deb_mem("freeing URB no. %d.\n",i);
+			/* free the URBs */
+			usb_free_urb(stream->urb_list[i]);
+		}
+	}
+	stream->urbs_initialized = 0;
+
+	usb_free_stream_buffers(stream);
+	return 0;
+}