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, 449 insertions, 0 deletions

diff --git a/drivers/media/platform/amphion/vpu_helpers.c b/drivers/media/platform/amphion/vpu_helpers.c
new file mode 100644
index 000000000..019c77e84
--- /dev/null
+++ b/drivers/media/platform/amphion/vpu_helpers.c
@@ -0,0 +1,449 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020-2021 NXP
+ */
+
+#include <linux/init.h>
+#include <linux/interconnect.h>
+#include <linux/ioctl.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include "vpu.h"
+#include "vpu_core.h"
+#include "vpu_rpc.h"
+#include "vpu_helpers.h"
+
+int vpu_helper_find_in_array_u8(const u8 *array, u32 size, u32 x)
+{
+	int i;
+
+	for (i = 0; i < size; i++) {
+		if (array[i] == x)
+			return i;
+	}
+
+	return 0;
+}
+
+bool vpu_helper_check_type(struct vpu_inst *inst, u32 type)
+{
+	const struct vpu_format *pfmt;
+
+	for (pfmt = inst->formats; pfmt->pixfmt; pfmt++) {
+		if (!vpu_iface_check_format(inst, pfmt->pixfmt))
+			continue;
+		if (pfmt->type == type)
+			return true;
+	}
+
+	return false;
+}
+
+const struct vpu_format *vpu_helper_find_format(struct vpu_inst *inst, u32 type, u32 pixelfmt)
+{
+	const struct vpu_format *pfmt;
+
+	if (!inst || !inst->formats)
+		return NULL;
+
+	if (!vpu_iface_check_format(inst, pixelfmt))
+		return NULL;
+
+	for (pfmt = inst->formats; pfmt->pixfmt; pfmt++) {
+		if (pfmt->pixfmt == pixelfmt && (!type || type == pfmt->type))
+			return pfmt;
+	}
+
+	return NULL;
+}
+
+const struct vpu_format *vpu_helper_find_sibling(struct vpu_inst *inst, u32 type, u32 pixelfmt)
+{
+	const struct vpu_format *fmt;
+	const struct vpu_format *sibling;
+
+	fmt = vpu_helper_find_format(inst, type, pixelfmt);
+	if (!fmt || !fmt->sibling)
+		return NULL;
+
+	sibling = vpu_helper_find_format(inst, type, fmt->sibling);
+	if (!sibling || sibling->sibling != fmt->pixfmt ||
+	    sibling->comp_planes != fmt->comp_planes)
+		return NULL;
+
+	return sibling;
+}
+
+bool vpu_helper_match_format(struct vpu_inst *inst, u32 type, u32 fmta, u32 fmtb)
+{
+	const struct vpu_format *sibling;
+
+	if (fmta == fmtb)
+		return true;
+
+	sibling = vpu_helper_find_sibling(inst, type, fmta);
+	if (sibling && sibling->pixfmt == fmtb)
+		return true;
+	return false;
+}
+
+const struct vpu_format *vpu_helper_enum_format(struct vpu_inst *inst, u32 type, int index)
+{
+	const struct vpu_format *pfmt;
+	int i = 0;
+
+	if (!inst || !inst->formats)
+		return NULL;
+
+	for (pfmt = inst->formats; pfmt->pixfmt; pfmt++) {
+		if (!vpu_iface_check_format(inst, pfmt->pixfmt))
+			continue;
+
+		if (pfmt->type == type) {
+			if (index == i)
+				return pfmt;
+			i++;
+		}
+	}
+
+	return NULL;
+}
+
+u32 vpu_helper_valid_frame_width(struct vpu_inst *inst, u32 width)
+{
+	const struct vpu_core_resources *res;
+
+	if (!inst)
+		return width;
+
+	res = vpu_get_resource(inst);
+	if (!res)
+		return width;
+	if (res->max_width)
+		width = clamp(width, res->min_width, res->max_width);
+	if (res->step_width)
+		width = ALIGN(width, res->step_width);
+
+	return width;
+}
+
+u32 vpu_helper_valid_frame_height(struct vpu_inst *inst, u32 height)
+{
+	const struct vpu_core_resources *res;
+
+	if (!inst)
+		return height;
+
+	res = vpu_get_resource(inst);
+	if (!res)
+		return height;
+	if (res->max_height)
+		height = clamp(height, res->min_height, res->max_height);
+	if (res->step_height)
+		height = ALIGN(height, res->step_height);
+
+	return height;
+}
+
+static u32 get_nv12_plane_size(u32 width, u32 height, int plane_no,
+			       u32 stride, u32 interlaced, u32 *pbl)
+{
+	u32 bytesperline;
+	u32 size = 0;
+
+	bytesperline = width;
+	if (pbl)
+		bytesperline = max(bytesperline, *pbl);
+	bytesperline = ALIGN(bytesperline, stride);
+	height = ALIGN(height, 2);
+	if (plane_no == 0)
+		size = bytesperline * height;
+	else if (plane_no == 1)
+		size = bytesperline * height >> 1;
+	if (pbl)
+		*pbl = bytesperline;
+
+	return size;
+}
+
+static u32 get_tiled_8l128_plane_size(u32 fmt, u32 width, u32 height, int plane_no,
+				      u32 stride, u32 interlaced, u32 *pbl)
+{
+	u32 ws = 3;
+	u32 hs = 7;
+	u32 bitdepth = 8;
+	u32 bytesperline;
+	u32 size = 0;
+
+	if (interlaced)
+		hs++;
+	if (fmt == V4L2_PIX_FMT_NV12M_10BE_8L128 || fmt == V4L2_PIX_FMT_NV12_10BE_8L128)
+		bitdepth = 10;
+	bytesperline = DIV_ROUND_UP(width * bitdepth, BITS_PER_BYTE);
+	if (pbl)
+		bytesperline = max(bytesperline, *pbl);
+	bytesperline = ALIGN(bytesperline, 1 << ws);
+	bytesperline = ALIGN(bytesperline, stride);
+	height = ALIGN(height, 1 << hs);
+	if (plane_no == 0)
+		size = bytesperline * height;
+	else if (plane_no == 1)
+		size = (bytesperline * ALIGN(height, 1 << (hs + 1))) >> 1;
+	if (pbl)
+		*pbl = bytesperline;
+
+	return size;
+}
+
+static u32 get_default_plane_size(u32 width, u32 height, int plane_no,
+				  u32 stride, u32 interlaced, u32 *pbl)
+{
+	u32 bytesperline;
+	u32 size = 0;
+
+	bytesperline = width;
+	if (pbl)
+		bytesperline = max(bytesperline, *pbl);
+	bytesperline = ALIGN(bytesperline, stride);
+	if (plane_no == 0)
+		size = bytesperline * height;
+	if (pbl)
+		*pbl = bytesperline;
+
+	return size;
+}
+
+u32 vpu_helper_get_plane_size(u32 fmt, u32 w, u32 h, int plane_no,
+			      u32 stride, u32 interlaced, u32 *pbl)
+{
+	switch (fmt) {
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV12M:
+		return get_nv12_plane_size(w, h, plane_no, stride, interlaced, pbl);
+	case V4L2_PIX_FMT_NV12_8L128:
+	case V4L2_PIX_FMT_NV12M_8L128:
+	case V4L2_PIX_FMT_NV12_10BE_8L128:
+	case V4L2_PIX_FMT_NV12M_10BE_8L128:
+		return get_tiled_8l128_plane_size(fmt, w, h, plane_no, stride, interlaced, pbl);
+	default:
+		return get_default_plane_size(w, h, plane_no, stride, interlaced, pbl);
+	}
+}
+
+int vpu_helper_copy_from_stream_buffer(struct vpu_buffer *stream_buffer,
+				       u32 *rptr, u32 size, void *dst)
+{
+	u32 offset;
+	u32 start;
+	u32 end;
+	void *virt;
+
+	if (!stream_buffer || !rptr || !dst)
+		return -EINVAL;
+
+	if (!size)
+		return 0;
+
+	offset = *rptr;
+	start = stream_buffer->phys;
+	end = start + stream_buffer->length;
+	virt = stream_buffer->virt;
+
+	if (offset < start || offset > end)
+		return -EINVAL;
+
+	if (offset + size <= end) {
+		memcpy(dst, virt + (offset - start), size);
+	} else {
+		memcpy(dst, virt + (offset - start), end - offset);
+		memcpy(dst + end - offset, virt, size + offset - end);
+	}
+
+	*rptr = vpu_helper_step_walk(stream_buffer, offset, size);
+
+	return 0;
+}
+
+int vpu_helper_copy_to_stream_buffer(struct vpu_buffer *stream_buffer,
+				     u32 *wptr, u32 size, void *src)
+{
+	u32 offset;
+	u32 start;
+	u32 end;
+	void *virt;
+
+	if (!stream_buffer || !wptr || !src)
+		return -EINVAL;
+
+	if (!size)
+		return 0;
+
+	offset = *wptr;
+	start = stream_buffer->phys;
+	end = start + stream_buffer->length;
+	virt = stream_buffer->virt;
+	if (offset < start || offset > end)
+		return -EINVAL;
+
+	if (offset + size <= end) {
+		memcpy(virt + (offset - start), src, size);
+	} else {
+		memcpy(virt + (offset - start), src, end - offset);
+		memcpy(virt, src + end - offset, size + offset - end);
+	}
+
+	*wptr = vpu_helper_step_walk(stream_buffer, offset, size);
+
+	return 0;
+}
+
+int vpu_helper_memset_stream_buffer(struct vpu_buffer *stream_buffer,
+				    u32 *wptr, u8 val, u32 size)
+{
+	u32 offset;
+	u32 start;
+	u32 end;
+	void *virt;
+
+	if (!stream_buffer || !wptr)
+		return -EINVAL;
+
+	if (!size)
+		return 0;
+
+	offset = *wptr;
+	start = stream_buffer->phys;
+	end = start + stream_buffer->length;
+	virt = stream_buffer->virt;
+	if (offset < start || offset > end)
+		return -EINVAL;
+
+	if (offset + size <= end) {
+		memset(virt + (offset - start), val, size);
+	} else {
+		memset(virt + (offset - start), val, end - offset);
+		memset(virt, val, size + offset - end);
+	}
+
+	offset += size;
+	if (offset >= end)
+		offset -= stream_buffer->length;
+
+	*wptr = offset;
+
+	return 0;
+}
+
+u32 vpu_helper_get_free_space(struct vpu_inst *inst)
+{
+	struct vpu_rpc_buffer_desc desc;
+
+	if (vpu_iface_get_stream_buffer_desc(inst, &desc))
+		return 0;
+
+	if (desc.rptr > desc.wptr)
+		return desc.rptr - desc.wptr;
+	else if (desc.rptr < desc.wptr)
+		return (desc.end - desc.start + desc.rptr - desc.wptr);
+	else
+		return desc.end - desc.start;
+}
+
+u32 vpu_helper_get_used_space(struct vpu_inst *inst)
+{
+	struct vpu_rpc_buffer_desc desc;
+
+	if (vpu_iface_get_stream_buffer_desc(inst, &desc))
+		return 0;
+
+	if (desc.wptr > desc.rptr)
+		return desc.wptr - desc.rptr;
+	else if (desc.wptr < desc.rptr)
+		return (desc.end - desc.start + desc.wptr - desc.rptr);
+	else
+		return 0;
+}
+
+int vpu_helper_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vpu_inst *inst = ctrl_to_inst(ctrl);
+
+	switch (ctrl->id) {
+	case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
+		ctrl->val = inst->min_buffer_cap;
+		break;
+	case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:
+		ctrl->val = inst->min_buffer_out;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int vpu_helper_find_startcode(struct vpu_buffer *stream_buffer,
+			      u32 pixelformat, u32 offset, u32 bytesused)
+{
+	u32 start_code;
+	int start_code_size;
+	u32 val = 0;
+	int i;
+	int ret = -EINVAL;
+
+	if (!stream_buffer || !stream_buffer->virt)
+		return -EINVAL;
+
+	switch (pixelformat) {
+	case V4L2_PIX_FMT_H264:
+		start_code_size = 4;
+		start_code = 0x00000001;
+		break;
+	default:
+		return 0;
+	}
+
+	for (i = 0; i < bytesused; i++) {
+		val = (val << 8) | vpu_helper_read_byte(stream_buffer, offset + i);
+		if (i < start_code_size - 1)
+			continue;
+		if (val == start_code) {
+			ret = i + 1 - start_code_size;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+int vpu_find_dst_by_src(struct vpu_pair *pairs, u32 cnt, u32 src)
+{
+	u32 i;
+
+	if (!pairs || !cnt)
+		return -EINVAL;
+
+	for (i = 0; i < cnt; i++) {
+		if (pairs[i].src == src)
+			return pairs[i].dst;
+	}
+
+	return -EINVAL;
+}
+
+int vpu_find_src_by_dst(struct vpu_pair *pairs, u32 cnt, u32 dst)
+{
+	u32 i;
+
+	if (!pairs || !cnt)
+		return -EINVAL;
+
+	for (i = 0; i < cnt; i++) {
+		if (pairs[i].dst == dst)
+			return pairs[i].src;
+	}
+
+	return -EINVAL;
+}