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, 340 insertions, 0 deletions

diff --git a/sound/soc/sof/sof-client-ipc-msg-injector.c b/sound/soc/sof/sof-client-ipc-msg-injector.c
new file mode 100644
index 000000000..752d53206
--- /dev/null
+++ b/sound/soc/sof/sof-client-ipc-msg-injector.c
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2022 Intel Corporation. All rights reserved.
+//
+// Author: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
+//
+
+#include <linux/auxiliary_bus.h>
+#include <linux/completion.h>
+#include <linux/debugfs.h>
+#include <linux/ktime.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <sound/sof/header.h>
+#include <sound/sof/ipc4/header.h>
+
+#include "sof-client.h"
+
+#define SOF_IPC_CLIENT_SUSPEND_DELAY_MS	3000
+
+struct sof_msg_inject_priv {
+	struct dentry *dfs_file;
+	size_t max_msg_size;
+	enum sof_ipc_type ipc_type;
+
+	void *tx_buffer;
+	void *rx_buffer;
+};
+
+static int sof_msg_inject_dfs_open(struct inode *inode, struct file *file)
+{
+	struct sof_client_dev *cdev = inode->i_private;
+	int ret;
+
+	if (sof_client_get_fw_state(cdev) == SOF_FW_CRASHED)
+		return -ENODEV;
+
+	ret = debugfs_file_get(file->f_path.dentry);
+	if (unlikely(ret))
+		return ret;
+
+	ret = simple_open(inode, file);
+	if (ret)
+		debugfs_file_put(file->f_path.dentry);
+
+	return ret;
+}
+
+static ssize_t sof_msg_inject_dfs_read(struct file *file, char __user *buffer,
+				       size_t count, loff_t *ppos)
+{
+	struct sof_client_dev *cdev = file->private_data;
+	struct sof_msg_inject_priv *priv = cdev->data;
+	struct sof_ipc_reply *rhdr = priv->rx_buffer;
+
+	if (!rhdr->hdr.size || !count || *ppos)
+		return 0;
+
+	if (count > rhdr->hdr.size)
+		count = rhdr->hdr.size;
+
+	if (copy_to_user(buffer, priv->rx_buffer, count))
+		return -EFAULT;
+
+	*ppos += count;
+	return count;
+}
+
+static ssize_t sof_msg_inject_ipc4_dfs_read(struct file *file,
+					    char __user *buffer,
+					    size_t count, loff_t *ppos)
+{
+	struct sof_client_dev *cdev = file->private_data;
+	struct sof_msg_inject_priv *priv = cdev->data;
+	struct sof_ipc4_msg *ipc4_msg = priv->rx_buffer;
+	size_t header_size = sizeof(ipc4_msg->header_u64);
+	size_t remaining;
+
+	if (!ipc4_msg->header_u64 || !count || *ppos)
+		return 0;
+
+	/* we need space for the header at minimum (u64) */
+	if (count < header_size)
+		return -ENOSPC;
+
+	remaining = header_size;
+
+	/* Only get large config have payload */
+	if (SOF_IPC4_MSG_IS_MODULE_MSG(ipc4_msg->primary) &&
+	    (SOF_IPC4_MSG_TYPE_GET(ipc4_msg->primary) == SOF_IPC4_MOD_LARGE_CONFIG_GET))
+		remaining += ipc4_msg->data_size;
+
+	if (count > remaining)
+		count = remaining;
+	else if (count < remaining)
+		remaining = count;
+
+	/* copy the header first */
+	if (copy_to_user(buffer, &ipc4_msg->header_u64, header_size))
+		return -EFAULT;
+
+	*ppos += header_size;
+	remaining -= header_size;
+
+	if (!remaining)
+		return count;
+
+	if (remaining > ipc4_msg->data_size)
+		remaining = ipc4_msg->data_size;
+
+	/* Copy the payload */
+	if (copy_to_user(buffer + *ppos, ipc4_msg->data_ptr, remaining))
+		return -EFAULT;
+
+	*ppos += remaining;
+	return count;
+}
+
+static int sof_msg_inject_send_message(struct sof_client_dev *cdev)
+{
+	struct sof_msg_inject_priv *priv = cdev->data;
+	struct device *dev = &cdev->auxdev.dev;
+	int ret, err;
+
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret < 0 && ret != -EACCES) {
+		dev_err_ratelimited(dev, "debugfs write failed to resume %d\n", ret);
+		return ret;
+	}
+
+	/* send the message */
+	ret = sof_client_ipc_tx_message(cdev, priv->tx_buffer, priv->rx_buffer,
+					priv->max_msg_size);
+	if (ret)
+		dev_err(dev, "IPC message send failed: %d\n", ret);
+
+	pm_runtime_mark_last_busy(dev);
+	err = pm_runtime_put_autosuspend(dev);
+	if (err < 0)
+		dev_err_ratelimited(dev, "debugfs write failed to idle %d\n", err);
+
+	return ret;
+}
+
+static ssize_t sof_msg_inject_dfs_write(struct file *file, const char __user *buffer,
+					size_t count, loff_t *ppos)
+{
+	struct sof_client_dev *cdev = file->private_data;
+	struct sof_msg_inject_priv *priv = cdev->data;
+	ssize_t size;
+	int ret;
+
+	if (*ppos)
+		return 0;
+
+	size = simple_write_to_buffer(priv->tx_buffer, priv->max_msg_size,
+				      ppos, buffer, count);
+	if (size < 0)
+		return size;
+	if (size != count)
+		return -EFAULT;
+
+	memset(priv->rx_buffer, 0, priv->max_msg_size);
+
+	ret = sof_msg_inject_send_message(cdev);
+
+	/* return the error code if test failed */
+	if (ret < 0)
+		size = ret;
+
+	return size;
+};
+
+static ssize_t sof_msg_inject_ipc4_dfs_write(struct file *file,
+					     const char __user *buffer,
+					     size_t count, loff_t *ppos)
+{
+	struct sof_client_dev *cdev = file->private_data;
+	struct sof_msg_inject_priv *priv = cdev->data;
+	struct sof_ipc4_msg *ipc4_msg = priv->tx_buffer;
+	size_t data_size;
+	int ret;
+
+	if (*ppos)
+		return 0;
+
+	if (count < sizeof(ipc4_msg->header_u64))
+		return -EINVAL;
+
+	/* copy the header first */
+	if (copy_from_user(&ipc4_msg->header_u64, buffer,
+			   sizeof(ipc4_msg->header_u64)))
+		return -EFAULT;
+
+	data_size = count - sizeof(ipc4_msg->header_u64);
+	if (data_size > priv->max_msg_size)
+		return -EINVAL;
+
+	/* Copy the payload */
+	if (copy_from_user(ipc4_msg->data_ptr,
+			   buffer + sizeof(ipc4_msg->header_u64), data_size))
+		return -EFAULT;
+
+	ipc4_msg->data_size = data_size;
+
+	/* Initialize the reply storage */
+	ipc4_msg = priv->rx_buffer;
+	ipc4_msg->header_u64 = 0;
+	ipc4_msg->data_size = priv->max_msg_size;
+	memset(ipc4_msg->data_ptr, 0, priv->max_msg_size);
+
+	ret = sof_msg_inject_send_message(cdev);
+
+	/* return the error code if test failed */
+	if (ret < 0)
+		return ret;
+
+	return count;
+};
+
+static int sof_msg_inject_dfs_release(struct inode *inode, struct file *file)
+{
+	debugfs_file_put(file->f_path.dentry);
+
+	return 0;
+}
+
+static const struct file_operations sof_msg_inject_fops = {
+	.open = sof_msg_inject_dfs_open,
+	.read = sof_msg_inject_dfs_read,
+	.write = sof_msg_inject_dfs_write,
+	.llseek = default_llseek,
+	.release = sof_msg_inject_dfs_release,
+
+	.owner = THIS_MODULE,
+};
+
+static const struct file_operations sof_msg_inject_ipc4_fops = {
+	.open = sof_msg_inject_dfs_open,
+	.read = sof_msg_inject_ipc4_dfs_read,
+	.write = sof_msg_inject_ipc4_dfs_write,
+	.llseek = default_llseek,
+	.release = sof_msg_inject_dfs_release,
+
+	.owner = THIS_MODULE,
+};
+
+static int sof_msg_inject_probe(struct auxiliary_device *auxdev,
+				const struct auxiliary_device_id *id)
+{
+	struct sof_client_dev *cdev = auxiliary_dev_to_sof_client_dev(auxdev);
+	struct dentry *debugfs_root = sof_client_get_debugfs_root(cdev);
+	static const struct file_operations *fops;
+	struct device *dev = &auxdev->dev;
+	struct sof_msg_inject_priv *priv;
+	size_t alloc_size;
+
+	/* allocate memory for client data */
+	priv = devm_kzalloc(&auxdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->ipc_type = sof_client_get_ipc_type(cdev);
+	priv->max_msg_size = sof_client_get_ipc_max_payload_size(cdev);
+	alloc_size = priv->max_msg_size;
+
+	if (priv->ipc_type == SOF_INTEL_IPC4)
+		alloc_size += sizeof(struct sof_ipc4_msg);
+
+	priv->tx_buffer = devm_kmalloc(dev, alloc_size, GFP_KERNEL);
+	priv->rx_buffer = devm_kzalloc(dev, alloc_size, GFP_KERNEL);
+	if (!priv->tx_buffer || !priv->rx_buffer)
+		return -ENOMEM;
+
+	if (priv->ipc_type == SOF_INTEL_IPC4) {
+		struct sof_ipc4_msg *ipc4_msg;
+
+		ipc4_msg = priv->tx_buffer;
+		ipc4_msg->data_ptr = priv->tx_buffer + sizeof(struct sof_ipc4_msg);
+
+		ipc4_msg = priv->rx_buffer;
+		ipc4_msg->data_ptr = priv->rx_buffer + sizeof(struct sof_ipc4_msg);
+
+		fops = &sof_msg_inject_ipc4_fops;
+	} else {
+		fops = &sof_msg_inject_fops;
+	}
+
+	cdev->data = priv;
+
+	priv->dfs_file = debugfs_create_file("ipc_msg_inject", 0644, debugfs_root,
+					     cdev, fops);
+
+	/* enable runtime PM */
+	pm_runtime_set_autosuspend_delay(dev, SOF_IPC_CLIENT_SUSPEND_DELAY_MS);
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_enable(dev);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_idle(dev);
+
+	return 0;
+}
+
+static void sof_msg_inject_remove(struct auxiliary_device *auxdev)
+{
+	struct sof_client_dev *cdev = auxiliary_dev_to_sof_client_dev(auxdev);
+	struct sof_msg_inject_priv *priv = cdev->data;
+
+	pm_runtime_disable(&auxdev->dev);
+
+	debugfs_remove(priv->dfs_file);
+}
+
+static const struct auxiliary_device_id sof_msg_inject_client_id_table[] = {
+	{ .name = "snd_sof.msg_injector" },
+	{},
+};
+MODULE_DEVICE_TABLE(auxiliary, sof_msg_inject_client_id_table);
+
+/*
+ * No need for driver pm_ops as the generic pm callbacks in the auxiliary bus
+ * type are enough to ensure that the parent SOF device resumes to bring the DSP
+ * back to D0.
+ * Driver name will be set based on KBUILD_MODNAME.
+ */
+static struct auxiliary_driver sof_msg_inject_client_drv = {
+	.probe = sof_msg_inject_probe,
+	.remove = sof_msg_inject_remove,
+
+	.id_table = sof_msg_inject_client_id_table,
+};
+
+module_auxiliary_driver(sof_msg_inject_client_drv);
+
+MODULE_DESCRIPTION("SOF IPC Message Injector Client Driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT);