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().
  ...

3 files changed, 152 insertions, 0 deletions

diff --git a/sound/soc/sof/xtensa/Kconfig b/sound/soc/sof/xtensa/Kconfig
new file mode 100644
index 000000000..defd6d3dc
--- /dev/null
+++ b/sound/soc/sof/xtensa/Kconfig
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config SND_SOC_SOF_XTENSA
+	tristate
diff --git a/sound/soc/sof/xtensa/Makefile b/sound/soc/sof/xtensa/Makefile
new file mode 100644
index 000000000..b8376ea04
--- /dev/null
+++ b/sound/soc/sof/xtensa/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+
+snd-sof-xtensa-dsp-objs := core.o
+
+obj-$(CONFIG_SND_SOC_SOF_XTENSA) += snd-sof-xtensa-dsp.o
diff --git a/sound/soc/sof/xtensa/core.c b/sound/soc/sof/xtensa/core.c
new file mode 100644
index 000000000..bebbe3a28
--- /dev/null
+++ b/sound/soc/sof/xtensa/core.c
@@ -0,0 +1,144 @@
+// 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) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Pan Xiuli <xiuli.pan@linux.intel.com>
+//
+
+#include <linux/module.h>
+#include <sound/sof.h>
+#include <sound/sof/xtensa.h>
+#include "../sof-priv.h"
+
+struct xtensa_exception_cause {
+	u32 id;
+	const char *msg;
+	const char *description;
+};
+
+/*
+ * From 4.4.1.5 table 4-64 Exception Causes of Xtensa
+ * Instruction Set Architecture (ISA) Reference Manual
+ */
+static const struct xtensa_exception_cause xtensa_exception_causes[] = {
+	{0, "IllegalInstructionCause", "Illegal instruction"},
+	{1, "SyscallCause", "SYSCALL instruction"},
+	{2, "InstructionFetchErrorCause",
+	"Processor internal physical address or data error during instruction fetch"},
+	{3, "LoadStoreErrorCause",
+	"Processor internal physical address or data error during load or store"},
+	{4, "Level1InterruptCause",
+	"Level-1 interrupt as indicated by set level-1 bits in the INTERRUPT register"},
+	{5, "AllocaCause",
+	"MOVSP instruction, if caller’s registers are not in the register file"},
+	{6, "IntegerDivideByZeroCause",
+	"QUOS, QUOU, REMS, or REMU divisor operand is zero"},
+	{8, "PrivilegedCause",
+	"Attempt to execute a privileged operation when CRING ? 0"},
+	{9, "LoadStoreAlignmentCause", "Load or store to an unaligned address"},
+	{12, "InstrPIFDataErrorCause",
+	"PIF data error during instruction fetch"},
+	{13, "LoadStorePIFDataErrorCause",
+	"Synchronous PIF data error during LoadStore access"},
+	{14, "InstrPIFAddrErrorCause",
+	"PIF address error during instruction fetch"},
+	{15, "LoadStorePIFAddrErrorCause",
+	"Synchronous PIF address error during LoadStore access"},
+	{16, "InstTLBMissCause", "Error during Instruction TLB refill"},
+	{17, "InstTLBMultiHitCause",
+	"Multiple instruction TLB entries matched"},
+	{18, "InstFetchPrivilegeCause",
+	"An instruction fetch referenced a virtual address at a ring level less than CRING"},
+	{20, "InstFetchProhibitedCause",
+	"An instruction fetch referenced a page mapped with an attribute that does not permit instruction fetch"},
+	{24, "LoadStoreTLBMissCause",
+	"Error during TLB refill for a load or store"},
+	{25, "LoadStoreTLBMultiHitCause",
+	"Multiple TLB entries matched for a load or store"},
+	{26, "LoadStorePrivilegeCause",
+	"A load or store referenced a virtual address at a ring level less than CRING"},
+	{28, "LoadProhibitedCause",
+	"A load referenced a page mapped with an attribute that does not permit loads"},
+	{32, "Coprocessor0Disabled",
+	"Coprocessor 0 instruction when cp0 disabled"},
+	{33, "Coprocessor1Disabled",
+	"Coprocessor 1 instruction when cp1 disabled"},
+	{34, "Coprocessor2Disabled",
+	"Coprocessor 2 instruction when cp2 disabled"},
+	{35, "Coprocessor3Disabled",
+	"Coprocessor 3 instruction when cp3 disabled"},
+	{36, "Coprocessor4Disabled",
+	"Coprocessor 4 instruction when cp4 disabled"},
+	{37, "Coprocessor5Disabled",
+	"Coprocessor 5 instruction when cp5 disabled"},
+	{38, "Coprocessor6Disabled",
+	"Coprocessor 6 instruction when cp6 disabled"},
+	{39, "Coprocessor7Disabled",
+	"Coprocessor 7 instruction when cp7 disabled"},
+};
+
+/* only need xtensa atm */
+static void xtensa_dsp_oops(struct snd_sof_dev *sdev, const char *level, void *oops)
+{
+	struct sof_ipc_dsp_oops_xtensa *xoops = oops;
+	int i;
+
+	dev_printk(level, sdev->dev, "error: DSP Firmware Oops\n");
+	for (i = 0; i < ARRAY_SIZE(xtensa_exception_causes); i++) {
+		if (xtensa_exception_causes[i].id == xoops->exccause) {
+			dev_printk(level, sdev->dev,
+				   "error: Exception Cause: %s, %s\n",
+				   xtensa_exception_causes[i].msg,
+				   xtensa_exception_causes[i].description);
+		}
+	}
+	dev_printk(level, sdev->dev,
+		   "EXCCAUSE 0x%8.8x EXCVADDR 0x%8.8x PS       0x%8.8x SAR     0x%8.8x\n",
+		   xoops->exccause, xoops->excvaddr, xoops->ps, xoops->sar);
+	dev_printk(level, sdev->dev,
+		   "EPC1     0x%8.8x EPC2     0x%8.8x EPC3     0x%8.8x EPC4    0x%8.8x",
+		   xoops->epc1, xoops->epc2, xoops->epc3, xoops->epc4);
+	dev_printk(level, sdev->dev,
+		   "EPC5     0x%8.8x EPC6     0x%8.8x EPC7     0x%8.8x DEPC    0x%8.8x",
+		   xoops->epc5, xoops->epc6, xoops->epc7, xoops->depc);
+	dev_printk(level, sdev->dev,
+		   "EPS2     0x%8.8x EPS3     0x%8.8x EPS4     0x%8.8x EPS5    0x%8.8x",
+		   xoops->eps2, xoops->eps3, xoops->eps4, xoops->eps5);
+	dev_printk(level, sdev->dev,
+		   "EPS6     0x%8.8x EPS7     0x%8.8x INTENABL 0x%8.8x INTERRU 0x%8.8x",
+		   xoops->eps6, xoops->eps7, xoops->intenable, xoops->interrupt);
+}
+
+static void xtensa_stack(struct snd_sof_dev *sdev, const char *level, void *oops,
+			 u32 *stack, u32 stack_words)
+{
+	struct sof_ipc_dsp_oops_xtensa *xoops = oops;
+	u32 stack_ptr = xoops->plat_hdr.stackptr;
+	/* 4 * 8chars + 3 ws + 1 terminating NUL */
+	unsigned char buf[4 * 8 + 3 + 1];
+	int i;
+
+	dev_printk(level, sdev->dev, "stack dump from 0x%8.8x\n", stack_ptr);
+
+	/*
+	 * example output:
+	 * 0x0049fbb0: 8000f2d0 0049fc00 6f6c6c61 00632e63
+	 */
+	for (i = 0; i < stack_words; i += 4) {
+		hex_dump_to_buffer(stack + i, 16, 16, 4,
+				   buf, sizeof(buf), false);
+		dev_printk(level, sdev->dev, "0x%08x: %s\n", stack_ptr + i * 4, buf);
+	}
+}
+
+const struct dsp_arch_ops sof_xtensa_arch_ops = {
+	.dsp_oops = xtensa_dsp_oops,
+	.dsp_stack = xtensa_stack,
+};
+EXPORT_SYMBOL_NS(sof_xtensa_arch_ops, SND_SOC_SOF_XTENSA);
+
+MODULE_DESCRIPTION("SOF Xtensa DSP support");
+MODULE_LICENSE("Dual BSD/GPL");