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, 250 insertions, 0 deletions

diff --git a/drivers/media/pci/tw5864/tw5864-h264.c b/drivers/media/pci/tw5864/tw5864-h264.c
new file mode 100644
index 000000000..608798af6
--- /dev/null
+++ b/drivers/media/pci/tw5864/tw5864-h264.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  TW5864 driver - H.264 headers generation functions
+ *
+ *  Copyright (C) 2016 Bluecherry, LLC <maintainers@bluecherrydvr.com>
+ */
+
+#include <linux/log2.h>
+
+#include "tw5864.h"
+
+static u8 marker[] = { 0x00, 0x00, 0x00, 0x01 };
+
+/*
+ * Exponential-Golomb coding functions
+ *
+ * These functions are used for generation of H.264 bitstream headers.
+ *
+ * This code is derived from tw5864 reference driver by manufacturers, which
+ * itself apparently was derived from x264 project.
+ */
+
+/* Bitstream writing context */
+struct bs {
+	u8 *buf; /* pointer to buffer beginning */
+	u8 *buf_end; /* pointer to buffer end */
+	u8 *ptr; /* pointer to current byte in buffer */
+	unsigned int bits_left; /* number of available bits in current byte */
+};
+
+static void bs_init(struct bs *s, void *buf, int size)
+{
+	s->buf = buf;
+	s->ptr = buf;
+	s->buf_end = s->ptr + size;
+	s->bits_left = 8;
+}
+
+static int bs_len(struct bs *s)
+{
+	return s->ptr - s->buf;
+}
+
+static void bs_write(struct bs *s, int count, u32 bits)
+{
+	if (s->ptr >= s->buf_end - 4)
+		return;
+	while (count > 0) {
+		if (count < 32)
+			bits &= (1 << count) - 1;
+		if (count < s->bits_left) {
+			*s->ptr = (*s->ptr << count) | bits;
+			s->bits_left -= count;
+			break;
+		}
+		*s->ptr = (*s->ptr << s->bits_left) |
+			(bits >> (count - s->bits_left));
+		count -= s->bits_left;
+		s->ptr++;
+		s->bits_left = 8;
+	}
+}
+
+static void bs_write1(struct bs *s, u32 bit)
+{
+	if (s->ptr < s->buf_end) {
+		*s->ptr <<= 1;
+		*s->ptr |= bit;
+		s->bits_left--;
+		if (s->bits_left == 0) {
+			s->ptr++;
+			s->bits_left = 8;
+		}
+	}
+}
+
+static void bs_write_ue(struct bs *s, u32 val)
+{
+	if (val == 0) {
+		bs_write1(s, 1);
+	} else {
+		val++;
+		bs_write(s, 2 * fls(val) - 1, val);
+	}
+}
+
+static void bs_write_se(struct bs *s, int val)
+{
+	bs_write_ue(s, val <= 0 ? -val * 2 : val * 2 - 1);
+}
+
+static void bs_rbsp_trailing(struct bs *s)
+{
+	bs_write1(s, 1);
+	if (s->bits_left != 8)
+		bs_write(s, s->bits_left, 0x00);
+}
+
+/* H.264 headers generation functions */
+
+static int tw5864_h264_gen_sps_rbsp(u8 *buf, size_t size, int width, int height)
+{
+	struct bs bs, *s;
+
+	s = &bs;
+	bs_init(s, buf, size);
+	bs_write(s, 8, 0x42); /* profile_idc, baseline */
+	bs_write(s, 1, 1); /* constraint_set0_flag */
+	bs_write(s, 1, 1); /* constraint_set1_flag */
+	bs_write(s, 1, 0); /* constraint_set2_flag */
+	bs_write(s, 5, 0); /* reserved_zero_5bits */
+	bs_write(s, 8, 0x1e); /* level_idc */
+	bs_write_ue(s, 0); /* seq_parameter_set_id */
+	bs_write_ue(s, ilog2(MAX_GOP_SIZE) - 4); /* log2_max_frame_num_minus4 */
+	bs_write_ue(s, 0); /* pic_order_cnt_type */
+	/* log2_max_pic_order_cnt_lsb_minus4 */
+	bs_write_ue(s, ilog2(MAX_GOP_SIZE) - 4);
+	bs_write_ue(s, 1); /* num_ref_frames */
+	bs_write(s, 1, 0); /* gaps_in_frame_num_value_allowed_flag */
+	bs_write_ue(s, width / 16 - 1); /* pic_width_in_mbs_minus1 */
+	bs_write_ue(s, height / 16 - 1); /* pic_height_in_map_units_minus1 */
+	bs_write(s, 1, 1); /* frame_mbs_only_flag */
+	bs_write(s, 1, 0); /* direct_8x8_inference_flag */
+	bs_write(s, 1, 0); /* frame_cropping_flag */
+	bs_write(s, 1, 0); /* vui_parameters_present_flag */
+	bs_rbsp_trailing(s);
+	return bs_len(s);
+}
+
+static int tw5864_h264_gen_pps_rbsp(u8 *buf, size_t size, int qp)
+{
+	struct bs bs, *s;
+
+	s = &bs;
+	bs_init(s, buf, size);
+	bs_write_ue(s, 0); /* pic_parameter_set_id */
+	bs_write_ue(s, 0); /* seq_parameter_set_id */
+	bs_write(s, 1, 0); /* entropy_coding_mode_flag */
+	bs_write(s, 1, 0); /* pic_order_present_flag */
+	bs_write_ue(s, 0); /* num_slice_groups_minus1 */
+	bs_write_ue(s, 0); /* i_num_ref_idx_l0_active_minus1 */
+	bs_write_ue(s, 0); /* i_num_ref_idx_l1_active_minus1 */
+	bs_write(s, 1, 0); /* weighted_pred_flag */
+	bs_write(s, 2, 0); /* weighted_bipred_idc */
+	bs_write_se(s, qp - 26); /* pic_init_qp_minus26 */
+	bs_write_se(s, qp - 26); /* pic_init_qs_minus26 */
+	bs_write_se(s, 0); /* chroma_qp_index_offset */
+	bs_write(s, 1, 0); /* deblocking_filter_control_present_flag */
+	bs_write(s, 1, 0); /* constrained_intra_pred_flag */
+	bs_write(s, 1, 0); /* redundant_pic_cnt_present_flag */
+	bs_rbsp_trailing(s);
+	return bs_len(s);
+}
+
+static int tw5864_h264_gen_slice_head(u8 *buf, size_t size,
+				      unsigned int idr_pic_id,
+				      unsigned int frame_gop_seqno,
+				      int *tail_nb_bits, u8 *tail)
+{
+	struct bs bs, *s;
+	int is_i_frame = frame_gop_seqno == 0;
+
+	s = &bs;
+	bs_init(s, buf, size);
+	bs_write_ue(s, 0); /* first_mb_in_slice */
+	bs_write_ue(s, is_i_frame ? 2 : 5); /* slice_type - I or P */
+	bs_write_ue(s, 0); /* pic_parameter_set_id */
+	bs_write(s, ilog2(MAX_GOP_SIZE), frame_gop_seqno); /* frame_num */
+	if (is_i_frame)
+		bs_write_ue(s, idr_pic_id);
+
+	/* pic_order_cnt_lsb */
+	bs_write(s, ilog2(MAX_GOP_SIZE), frame_gop_seqno);
+
+	if (is_i_frame) {
+		bs_write1(s, 0); /* no_output_of_prior_pics_flag */
+		bs_write1(s, 0); /* long_term_reference_flag */
+	} else {
+		bs_write1(s, 0); /* num_ref_idx_active_override_flag */
+		bs_write1(s, 0); /* ref_pic_list_reordering_flag_l0 */
+		bs_write1(s, 0); /* adaptive_ref_pic_marking_mode_flag */
+	}
+
+	bs_write_se(s, 0); /* slice_qp_delta */
+
+	if (s->bits_left != 8) {
+		*tail = ((s->ptr[0]) << s->bits_left);
+		*tail_nb_bits = 8 - s->bits_left;
+	} else {
+		*tail = 0;
+		*tail_nb_bits = 0;
+	}
+
+	return bs_len(s);
+}
+
+void tw5864_h264_put_stream_header(u8 **buf, size_t *space_left, int qp,
+				   int width, int height)
+{
+	int nal_len;
+
+	/* SPS */
+	memcpy(*buf, marker, sizeof(marker));
+	*buf += 4;
+	*space_left -= 4;
+
+	**buf = 0x67; /* SPS NAL header */
+	*buf += 1;
+	*space_left -= 1;
+
+	nal_len = tw5864_h264_gen_sps_rbsp(*buf, *space_left, width, height);
+	*buf += nal_len;
+	*space_left -= nal_len;
+
+	/* PPS */
+	memcpy(*buf, marker, sizeof(marker));
+	*buf += 4;
+	*space_left -= 4;
+
+	**buf = 0x68; /* PPS NAL header */
+	*buf += 1;
+	*space_left -= 1;
+
+	nal_len = tw5864_h264_gen_pps_rbsp(*buf, *space_left, qp);
+	*buf += nal_len;
+	*space_left -= nal_len;
+}
+
+void tw5864_h264_put_slice_header(u8 **buf, size_t *space_left,
+				  unsigned int idr_pic_id,
+				  unsigned int frame_gop_seqno,
+				  int *tail_nb_bits, u8 *tail)
+{
+	int nal_len;
+
+	memcpy(*buf, marker, sizeof(marker));
+	*buf += 4;
+	*space_left -= 4;
+
+	/* Frame NAL header */
+	**buf = (frame_gop_seqno == 0) ? 0x25 : 0x21;
+	*buf += 1;
+	*space_left -= 1;
+
+	nal_len = tw5864_h264_gen_slice_head(*buf, *space_left, idr_pic_id,
+					     frame_gop_seqno, tail_nb_bits,
+					     tail);
+	*buf += nal_len;
+	*space_left -= nal_len;
+}