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, 375 insertions, 0 deletions

diff --git a/sound/soc/intel/atom/sst/sst_ipc.c b/sound/soc/intel/atom/sst/sst_ipc.c
new file mode 100644
index 000000000..4e039c717
--- /dev/null
+++ b/sound/soc/intel/atom/sst/sst_ipc.c
@@ -0,0 +1,375 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  sst_ipc.c - Intel SST Driver for audio engine
+ *
+ *  Copyright (C) 2008-14 Intel Corporation
+ *  Authors:	Vinod Koul <vinod.koul@intel.com>
+ *		Harsha Priya <priya.harsha@intel.com>
+ *		Dharageswari R <dharageswari.r@intel.com>
+ *		KP Jeeja <jeeja.kp@intel.com>
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#include <linux/pci.h>
+#include <linux/firmware.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/compress_driver.h>
+#include <asm/intel-mid.h>
+#include <asm/platform_sst_audio.h>
+#include "../sst-mfld-platform.h"
+#include "sst.h"
+
+struct sst_block *sst_create_block(struct intel_sst_drv *ctx,
+					u32 msg_id, u32 drv_id)
+{
+	struct sst_block *msg;
+
+	dev_dbg(ctx->dev, "Enter\n");
+	msg = kzalloc(sizeof(*msg), GFP_KERNEL);
+	if (!msg)
+		return NULL;
+	msg->condition = false;
+	msg->on = true;
+	msg->msg_id = msg_id;
+	msg->drv_id = drv_id;
+	spin_lock_bh(&ctx->block_lock);
+	list_add_tail(&msg->node, &ctx->block_list);
+	spin_unlock_bh(&ctx->block_lock);
+
+	return msg;
+}
+
+/*
+ * while handling the interrupts, we need to check for message status and
+ * then if we are blocking for a message
+ *
+ * here we are unblocking the blocked ones, this is based on id we have
+ * passed and search that for block threads.
+ * We will not find block in two cases
+ *  a) when its small message and block in not there, so silently ignore
+ *  them
+ *  b) when we are actually not able to find the block (bug perhaps)
+ *
+ *  Since we have bit of small messages we can spam kernel log with err
+ *  print on above so need to keep as debug prints which should be enabled
+ *  via dynamic debug while debugging IPC issues
+ */
+int sst_wake_up_block(struct intel_sst_drv *ctx, int result,
+		u32 drv_id, u32 ipc, void *data, u32 size)
+{
+	struct sst_block *block;
+
+	dev_dbg(ctx->dev, "Enter\n");
+
+	spin_lock_bh(&ctx->block_lock);
+	list_for_each_entry(block, &ctx->block_list, node) {
+		dev_dbg(ctx->dev, "Block ipc %d, drv_id %d\n", block->msg_id,
+							block->drv_id);
+		if (block->msg_id == ipc && block->drv_id == drv_id) {
+			dev_dbg(ctx->dev, "free up the block\n");
+			block->ret_code = result;
+			block->data = data;
+			block->size = size;
+			block->condition = true;
+			spin_unlock_bh(&ctx->block_lock);
+			wake_up(&ctx->wait_queue);
+			return 0;
+		}
+	}
+	spin_unlock_bh(&ctx->block_lock);
+	dev_dbg(ctx->dev,
+		"Block not found or a response received for a short msg for ipc %d, drv_id %d\n",
+		ipc, drv_id);
+	return -EINVAL;
+}
+
+int sst_free_block(struct intel_sst_drv *ctx, struct sst_block *freed)
+{
+	struct sst_block *block, *__block;
+
+	dev_dbg(ctx->dev, "Enter\n");
+	spin_lock_bh(&ctx->block_lock);
+	list_for_each_entry_safe(block, __block, &ctx->block_list, node) {
+		if (block == freed) {
+			pr_debug("pvt_id freed --> %d\n", freed->drv_id);
+			/* toggle the index position of pvt_id */
+			list_del(&freed->node);
+			spin_unlock_bh(&ctx->block_lock);
+			kfree(freed->data);
+			freed->data = NULL;
+			kfree(freed);
+			return 0;
+		}
+	}
+	spin_unlock_bh(&ctx->block_lock);
+	dev_err(ctx->dev, "block is already freed!!!\n");
+	return -EINVAL;
+}
+
+int sst_post_message_mrfld(struct intel_sst_drv *sst_drv_ctx,
+		struct ipc_post *ipc_msg, bool sync)
+{
+	struct ipc_post *msg = ipc_msg;
+	union ipc_header_mrfld header;
+	unsigned int loop_count = 0;
+	int retval = 0;
+	unsigned long irq_flags;
+
+	dev_dbg(sst_drv_ctx->dev, "Enter: sync: %d\n", sync);
+	spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
+	header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX);
+	if (sync) {
+		while (header.p.header_high.part.busy) {
+			if (loop_count > 25) {
+				dev_err(sst_drv_ctx->dev,
+					"sst: Busy wait failed, can't send this msg\n");
+				retval = -EBUSY;
+				goto out;
+			}
+			cpu_relax();
+			loop_count++;
+			header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX);
+		}
+	} else {
+		if (list_empty(&sst_drv_ctx->ipc_dispatch_list)) {
+			/* queue is empty, nothing to send */
+			spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
+			dev_dbg(sst_drv_ctx->dev,
+					"Empty msg queue... NO Action\n");
+			return 0;
+		}
+
+		if (header.p.header_high.part.busy) {
+			spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
+			dev_dbg(sst_drv_ctx->dev, "Busy not free... post later\n");
+			return 0;
+		}
+
+		/* copy msg from list */
+		msg = list_entry(sst_drv_ctx->ipc_dispatch_list.next,
+				struct ipc_post, node);
+		list_del(&msg->node);
+	}
+	dev_dbg(sst_drv_ctx->dev, "sst: Post message: header = %x\n",
+				msg->mrfld_header.p.header_high.full);
+	dev_dbg(sst_drv_ctx->dev, "sst: size = 0x%x\n",
+			msg->mrfld_header.p.header_low_payload);
+
+	if (msg->mrfld_header.p.header_high.part.large)
+		memcpy_toio(sst_drv_ctx->mailbox + SST_MAILBOX_SEND,
+			msg->mailbox_data,
+			msg->mrfld_header.p.header_low_payload);
+
+	sst_shim_write64(sst_drv_ctx->shim, SST_IPCX, msg->mrfld_header.full);
+
+out:
+	spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
+	kfree(msg->mailbox_data);
+	kfree(msg);
+	return retval;
+}
+
+void intel_sst_clear_intr_mrfld(struct intel_sst_drv *sst_drv_ctx)
+{
+	union interrupt_reg_mrfld isr;
+	union interrupt_reg_mrfld imr;
+	union ipc_header_mrfld clear_ipc;
+	unsigned long irq_flags;
+
+	spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
+	imr.full = sst_shim_read64(sst_drv_ctx->shim, SST_IMRX);
+	isr.full = sst_shim_read64(sst_drv_ctx->shim, SST_ISRX);
+
+	/* write 1 to clear*/
+	isr.part.busy_interrupt = 1;
+	sst_shim_write64(sst_drv_ctx->shim, SST_ISRX, isr.full);
+
+	/* Set IA done bit */
+	clear_ipc.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCD);
+
+	clear_ipc.p.header_high.part.busy = 0;
+	clear_ipc.p.header_high.part.done = 1;
+	clear_ipc.p.header_low_payload = IPC_ACK_SUCCESS;
+	sst_shim_write64(sst_drv_ctx->shim, SST_IPCD, clear_ipc.full);
+	/* un mask busy interrupt */
+	imr.part.busy_interrupt = 0;
+	sst_shim_write64(sst_drv_ctx->shim, SST_IMRX, imr.full);
+	spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
+}
+
+
+/*
+ * process_fw_init - process the FW init msg
+ *
+ * @msg: IPC message mailbox data from FW
+ *
+ * This function processes the FW init msg from FW
+ * marks FW state and prints debug info of loaded FW
+ */
+static void process_fw_init(struct intel_sst_drv *sst_drv_ctx,
+			void *msg)
+{
+	struct ipc_header_fw_init *init =
+		(struct ipc_header_fw_init *)msg;
+	int retval = 0;
+
+	dev_dbg(sst_drv_ctx->dev, "*** FW Init msg came***\n");
+	if (init->result) {
+		sst_set_fw_state_locked(sst_drv_ctx, SST_RESET);
+		dev_err(sst_drv_ctx->dev, "FW Init failed, Error %x\n",
+				init->result);
+		retval = init->result;
+		goto ret;
+	}
+	if (memcmp(&sst_drv_ctx->fw_version, &init->fw_version,
+		   sizeof(init->fw_version)))
+		dev_info(sst_drv_ctx->dev, "FW Version %02x.%02x.%02x.%02x\n",
+			init->fw_version.type, init->fw_version.major,
+			init->fw_version.minor, init->fw_version.build);
+	dev_dbg(sst_drv_ctx->dev, "Build date %s Time %s\n",
+			init->build_info.date, init->build_info.time);
+
+	/* Save FW version */
+	sst_drv_ctx->fw_version.type = init->fw_version.type;
+	sst_drv_ctx->fw_version.major = init->fw_version.major;
+	sst_drv_ctx->fw_version.minor = init->fw_version.minor;
+	sst_drv_ctx->fw_version.build = init->fw_version.build;
+
+ret:
+	sst_wake_up_block(sst_drv_ctx, retval, FW_DWNL_ID, 0 , NULL, 0);
+}
+
+static void process_fw_async_msg(struct intel_sst_drv *sst_drv_ctx,
+			struct ipc_post *msg)
+{
+	u32 msg_id;
+	int str_id;
+	u32 data_size, i;
+	void *data_offset;
+	struct stream_info *stream;
+	u32 msg_low, pipe_id;
+
+	msg_low = msg->mrfld_header.p.header_low_payload;
+	msg_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->cmd_id;
+	data_offset = (msg->mailbox_data + sizeof(struct ipc_dsp_hdr));
+	data_size =  msg_low - (sizeof(struct ipc_dsp_hdr));
+
+	switch (msg_id) {
+	case IPC_SST_PERIOD_ELAPSED_MRFLD:
+		pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;
+		str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id);
+		if (str_id > 0) {
+			dev_dbg(sst_drv_ctx->dev,
+				"Period elapsed rcvd for pipe id 0x%x\n",
+				pipe_id);
+			stream = &sst_drv_ctx->streams[str_id];
+			/* If stream is dropped, skip processing this message*/
+			if (stream->status == STREAM_INIT)
+				break;
+			if (stream->period_elapsed)
+				stream->period_elapsed(stream->pcm_substream);
+			if (stream->compr_cb)
+				stream->compr_cb(stream->compr_cb_param);
+		}
+		break;
+
+	case IPC_IA_DRAIN_STREAM_MRFLD:
+		pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;
+		str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id);
+		if (str_id > 0) {
+			stream = &sst_drv_ctx->streams[str_id];
+			if (stream->drain_notify)
+				stream->drain_notify(stream->drain_cb_param);
+		}
+		break;
+
+	case IPC_IA_FW_ASYNC_ERR_MRFLD:
+		dev_err(sst_drv_ctx->dev, "FW sent async error msg:\n");
+		for (i = 0; i < (data_size/4); i++)
+			print_hex_dump(KERN_DEBUG, NULL, DUMP_PREFIX_NONE,
+					16, 4, data_offset, data_size, false);
+		break;
+
+	case IPC_IA_FW_INIT_CMPLT_MRFLD:
+		process_fw_init(sst_drv_ctx, data_offset);
+		break;
+
+	case IPC_IA_BUF_UNDER_RUN_MRFLD:
+		pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;
+		str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id);
+		if (str_id > 0)
+			dev_err(sst_drv_ctx->dev,
+				"Buffer under-run for pipe:%#x str_id:%d\n",
+				pipe_id, str_id);
+		break;
+
+	default:
+		dev_err(sst_drv_ctx->dev,
+			"Unrecognized async msg from FW msg_id %#x\n", msg_id);
+	}
+}
+
+void sst_process_reply_mrfld(struct intel_sst_drv *sst_drv_ctx,
+		struct ipc_post *msg)
+{
+	unsigned int drv_id;
+	void *data;
+	union ipc_header_high msg_high;
+	u32 msg_low;
+	struct ipc_dsp_hdr *dsp_hdr;
+
+	msg_high = msg->mrfld_header.p.header_high;
+	msg_low = msg->mrfld_header.p.header_low_payload;
+
+	dev_dbg(sst_drv_ctx->dev, "IPC process message header %x payload %x\n",
+			msg->mrfld_header.p.header_high.full,
+			msg->mrfld_header.p.header_low_payload);
+
+	drv_id = msg_high.part.drv_id;
+
+	/* Check for async messages first */
+	if (drv_id == SST_ASYNC_DRV_ID) {
+		/*FW sent async large message*/
+		process_fw_async_msg(sst_drv_ctx, msg);
+		return;
+	}
+
+	/* FW sent short error response for an IPC */
+	if (msg_high.part.result && !msg_high.part.large) {
+		/* 32-bit FW error code in msg_low */
+		dev_err(sst_drv_ctx->dev, "FW sent error response 0x%x", msg_low);
+		sst_wake_up_block(sst_drv_ctx, msg_high.part.result,
+			msg_high.part.drv_id,
+			msg_high.part.msg_id, NULL, 0);
+		return;
+	}
+
+	/*
+	 * Process all valid responses
+	 * if it is a large message, the payload contains the size to
+	 * copy from mailbox
+	 **/
+	if (msg_high.part.large) {
+		data = kmemdup((void *)msg->mailbox_data, msg_low, GFP_KERNEL);
+		if (!data)
+			return;
+		/* Copy command id so that we can use to put sst to reset */
+		dsp_hdr = (struct ipc_dsp_hdr *)data;
+		dev_dbg(sst_drv_ctx->dev, "cmd_id %d\n", dsp_hdr->cmd_id);
+		if (sst_wake_up_block(sst_drv_ctx, msg_high.part.result,
+				msg_high.part.drv_id,
+				msg_high.part.msg_id, data, msg_low))
+			kfree(data);
+	} else {
+		sst_wake_up_block(sst_drv_ctx, msg_high.part.result,
+				msg_high.part.drv_id,
+				msg_high.part.msg_id, NULL, 0);
+	}
+
+}