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, 257 insertions, 0 deletions

diff --git a/sound/soc/sof/amd/acp-ipc.c b/sound/soc/sof/amd/acp-ipc.c
new file mode 100644
index 000000000..5a02753c4
--- /dev/null
+++ b/sound/soc/sof/amd/acp-ipc.c
@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Balakishore Pati <Balakishore.pati@amd.com>
+//	    Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+
+/* ACP-specific SOF IPC code */
+
+#include <linux/module.h>
+#include "../ops.h"
+#include "acp.h"
+#include "acp-dsp-offset.h"
+
+void acp_mailbox_write(struct snd_sof_dev *sdev, u32 offset, void *message, size_t bytes)
+{
+	memcpy_to_scratch(sdev, offset, message, bytes);
+}
+EXPORT_SYMBOL_NS(acp_mailbox_write, SND_SOC_SOF_AMD_COMMON);
+
+void acp_mailbox_read(struct snd_sof_dev *sdev, u32 offset, void *message, size_t bytes)
+{
+	memcpy_from_scratch(sdev, offset, message, bytes);
+}
+EXPORT_SYMBOL_NS(acp_mailbox_read, SND_SOC_SOF_AMD_COMMON);
+
+static void acpbus_trigger_host_to_dsp_swintr(struct acp_dev_data *adata)
+{
+	struct snd_sof_dev *sdev = adata->dev;
+	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
+	u32 swintr_trigger;
+
+	swintr_trigger = snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->dsp_intr_base +
+						DSP_SW_INTR_TRIG_OFFSET);
+	swintr_trigger |= 0x01;
+	snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->dsp_intr_base + DSP_SW_INTR_TRIG_OFFSET,
+			  swintr_trigger);
+}
+
+static void acp_ipc_host_msg_set(struct snd_sof_dev *sdev)
+{
+	unsigned int host_msg = sdev->debug_box.offset +
+				offsetof(struct scratch_ipc_conf, sof_host_msg_write);
+
+	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + host_msg, 1);
+}
+
+static void acp_dsp_ipc_host_done(struct snd_sof_dev *sdev)
+{
+	unsigned int dsp_msg = sdev->debug_box.offset +
+			       offsetof(struct scratch_ipc_conf, sof_dsp_msg_write);
+
+	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_msg, 0);
+}
+
+static void acp_dsp_ipc_dsp_done(struct snd_sof_dev *sdev)
+{
+	unsigned int dsp_ack = sdev->debug_box.offset +
+			       offsetof(struct scratch_ipc_conf, sof_dsp_ack_write);
+
+	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_ack, 0);
+}
+
+int acp_sof_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
+{
+	struct acp_dev_data *adata = sdev->pdata->hw_pdata;
+	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
+	unsigned int offset = sdev->host_box.offset;
+	unsigned int count = ACP_HW_SEM_RETRY_COUNT;
+
+	while (snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->hw_semaphore_offset)) {
+		/* Wait until acquired HW Semaphore Lock or timeout*/
+		count--;
+		if (!count) {
+			dev_err(sdev->dev, "%s: Failed to acquire HW lock\n", __func__);
+			return -EINVAL;
+		}
+	}
+
+	acp_mailbox_write(sdev, offset, msg->msg_data, msg->msg_size);
+	acp_ipc_host_msg_set(sdev);
+
+	/* Trigger host to dsp interrupt for the msg */
+	acpbus_trigger_host_to_dsp_swintr(adata);
+
+	/* Unlock or Release HW Semaphore */
+	snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->hw_semaphore_offset, 0x0);
+
+	return 0;
+}
+EXPORT_SYMBOL_NS(acp_sof_ipc_send_msg, SND_SOC_SOF_AMD_COMMON);
+
+static void acp_dsp_ipc_get_reply(struct snd_sof_dev *sdev)
+{
+	struct snd_sof_ipc_msg *msg = sdev->msg;
+	struct sof_ipc_reply reply;
+	struct sof_ipc_cmd_hdr *hdr;
+	unsigned int offset = sdev->host_box.offset;
+	int ret = 0;
+
+       /*
+	* Sometimes, there is unexpected reply ipc arriving. The reply
+	* ipc belongs to none of the ipcs sent from driver.
+	* In this case, the driver must ignore the ipc.
+	*/
+	if (!msg) {
+		dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");
+		return;
+	}
+	hdr = msg->msg_data;
+	if (hdr->cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CTX_SAVE) ||
+	    hdr->cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) {
+		/*
+		 * memory windows are powered off before sending IPC reply,
+		 * so we can't read the mailbox for CTX_SAVE and PM_GATE
+		 * replies.
+		 */
+		reply.error = 0;
+		reply.hdr.cmd = SOF_IPC_GLB_REPLY;
+		reply.hdr.size = sizeof(reply);
+		memcpy(msg->reply_data, &reply, sizeof(reply));
+		goto out;
+	}
+	/* get IPC reply from DSP in the mailbox */
+	acp_mailbox_read(sdev, offset, &reply, sizeof(reply));
+	if (reply.error < 0) {
+		memcpy(msg->reply_data, &reply, sizeof(reply));
+		ret = reply.error;
+	} else {
+		/* reply correct size ? */
+		if (reply.hdr.size != msg->reply_size &&
+		    !(reply.hdr.cmd & SOF_IPC_GLB_PROBE)) {
+			dev_err(sdev->dev, "reply expected %zu got %u bytes\n",
+				msg->reply_size, reply.hdr.size);
+			ret = -EINVAL;
+		}
+		/* read the message */
+		if (msg->reply_size > 0)
+			acp_mailbox_read(sdev, offset, msg->reply_data, msg->reply_size);
+	}
+out:
+	msg->reply_error = ret;
+}
+
+irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context)
+{
+	struct snd_sof_dev *sdev = context;
+	unsigned int dsp_msg_write = sdev->debug_box.offset +
+				     offsetof(struct scratch_ipc_conf, sof_dsp_msg_write);
+	unsigned int dsp_ack_write = sdev->debug_box.offset +
+				     offsetof(struct scratch_ipc_conf, sof_dsp_ack_write);
+	bool ipc_irq = false;
+	int dsp_msg, dsp_ack;
+	unsigned int status;
+
+	if (sdev->first_boot && sdev->fw_state != SOF_FW_BOOT_COMPLETE) {
+		acp_mailbox_read(sdev, sdev->dsp_box.offset, &status, sizeof(status));
+		if ((status & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
+			snd_sof_dsp_panic(sdev, sdev->dsp_box.offset + sizeof(status),
+					  true);
+			return IRQ_HANDLED;
+		}
+		snd_sof_ipc_msgs_rx(sdev);
+		acp_dsp_ipc_host_done(sdev);
+		return IRQ_HANDLED;
+	}
+
+	dsp_msg = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_msg_write);
+	if (dsp_msg) {
+		snd_sof_ipc_msgs_rx(sdev);
+		acp_dsp_ipc_host_done(sdev);
+		ipc_irq = true;
+	}
+
+	dsp_ack = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_ack_write);
+	if (dsp_ack) {
+		spin_lock_irq(&sdev->ipc_lock);
+		/* handle immediate reply from DSP core */
+		acp_dsp_ipc_get_reply(sdev);
+		snd_sof_ipc_reply(sdev, 0);
+		/* set the done bit */
+		acp_dsp_ipc_dsp_done(sdev);
+		spin_unlock_irq(&sdev->ipc_lock);
+		ipc_irq = true;
+	}
+
+	acp_mailbox_read(sdev, sdev->debug_box.offset, &status, sizeof(u32));
+	if ((status & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
+		snd_sof_dsp_panic(sdev, sdev->dsp_oops_offset, true);
+		return IRQ_HANDLED;
+	}
+
+	if (!ipc_irq)
+		dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n");
+
+	return IRQ_HANDLED;
+}
+EXPORT_SYMBOL_NS(acp_sof_ipc_irq_thread, SND_SOC_SOF_AMD_COMMON);
+
+int acp_sof_ipc_msg_data(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream,
+			 void *p, size_t sz)
+{
+	unsigned int offset = sdev->dsp_box.offset;
+
+	if (!substream || !sdev->stream_box.size) {
+		acp_mailbox_read(sdev, offset, p, sz);
+	} else {
+		struct acp_dsp_stream *stream = substream->runtime->private_data;
+
+		if (!stream)
+			return -ESTRPIPE;
+
+		acp_mailbox_read(sdev, stream->posn_offset, p, sz);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_NS(acp_sof_ipc_msg_data, SND_SOC_SOF_AMD_COMMON);
+
+int acp_set_stream_data_offset(struct snd_sof_dev *sdev,
+			       struct snd_pcm_substream *substream,
+			       size_t posn_offset)
+{
+	struct acp_dsp_stream *stream = substream->runtime->private_data;
+
+	/* check for unaligned offset or overflow */
+	if (posn_offset > sdev->stream_box.size ||
+	    posn_offset % sizeof(struct sof_ipc_stream_posn) != 0)
+		return -EINVAL;
+
+	stream->posn_offset = sdev->stream_box.offset + posn_offset;
+
+	dev_dbg(sdev->dev, "pcm: stream dir %d, posn mailbox offset is %zu",
+		substream->stream, stream->posn_offset);
+
+	return 0;
+}
+EXPORT_SYMBOL_NS(acp_set_stream_data_offset, SND_SOC_SOF_AMD_COMMON);
+
+int acp_sof_ipc_get_mailbox_offset(struct snd_sof_dev *sdev)
+{
+	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
+
+	return desc->sram_pte_offset;
+}
+EXPORT_SYMBOL_NS(acp_sof_ipc_get_mailbox_offset, SND_SOC_SOF_AMD_COMMON);
+
+int acp_sof_ipc_get_window_offset(struct snd_sof_dev *sdev, u32 id)
+{
+	return 0;
+}
+EXPORT_SYMBOL_NS(acp_sof_ipc_get_window_offset, SND_SOC_SOF_AMD_COMMON);
+
+MODULE_DESCRIPTION("AMD ACP sof-ipc driver");