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, 156 insertions, 0 deletions

diff --git a/sound/soc/intel/keembay/kmb_platform.h b/sound/soc/intel/keembay/kmb_platform.h
new file mode 100644
index 000000000..29be2cd84
--- /dev/null
+++ b/sound/soc/intel/keembay/kmb_platform.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  Intel KeemBay Platform driver
+ *
+ *  Copyright (C) 2020 Intel Corporation.
+ *
+ */
+
+#ifndef KMB_PLATFORM_H_
+#define KMB_PLATFORM_H_
+
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+#include <linux/types.h>
+#include <sound/dmaengine_pcm.h>
+
+/* Register values with reference to KMB databook v1.1 */
+/* common register for all channel */
+#define IER		0x000
+#define IRER		0x004
+#define ITER		0x008
+#define CER		0x00C
+#define CCR		0x010
+#define RXFFR		0x014
+#define TXFFR		0x018
+
+/* Interrupt status register fields */
+#define ISR_TXFO	BIT(5)
+#define ISR_TXFE	BIT(4)
+#define ISR_RXFO	BIT(1)
+#define ISR_RXDA	BIT(0)
+
+/* I2S Tx Rx Registers for all channels */
+#define LRBR_LTHR(x)	(0x40 * (x) + 0x020)
+#define RRBR_RTHR(x)	(0x40 * (x) + 0x024)
+#define RER(x)		(0x40 * (x) + 0x028)
+#define TER(x)		(0x40 * (x) + 0x02C)
+#define RCR(x)		(0x40 * (x) + 0x030)
+#define TCR(x)		(0x40 * (x) + 0x034)
+#define ISR(x)		(0x40 * (x) + 0x038)
+#define IMR(x)		(0x40 * (x) + 0x03C)
+#define ROR(x)		(0x40 * (x) + 0x040)
+#define TOR(x)		(0x40 * (x) + 0x044)
+#define RFCR(x)		(0x40 * (x) + 0x048)
+#define TFCR(x)		(0x40 * (x) + 0x04C)
+#define RFF(x)		(0x40 * (x) + 0x050)
+#define TFF(x)		(0x40 * (x) + 0x054)
+
+/* I2S COMP Registers */
+#define I2S_COMP_PARAM_2	0x01F0
+#define I2S_COMP_PARAM_1	0x01F4
+#define I2S_COMP_VERSION	0x01F8
+#define I2S_COMP_TYPE		0x01FC
+
+/* PSS_GEN_CTRL_I2S_GEN_CFG_0 Registers */
+#define I2S_GEN_CFG_0		0x000
+#define PSS_CPR_RST_EN		0x010
+#define PSS_CPR_RST_SET		0x014
+#define PSS_CPR_CLK_CLR		0x000
+#define PSS_CPR_AUX_RST_EN	0x070
+
+#define CLOCK_PROVIDER_MODE	BIT(13)
+
+/* Interrupt Flag */
+#define TX_INT_FLAG		GENMASK(5, 4)
+#define RX_INT_FLAG		GENMASK(1, 0)
+/*
+ * Component parameter register fields - define the I2S block's
+ * configuration.
+ */
+#define	COMP1_TX_WORDSIZE_3(r)		FIELD_GET(GENMASK(27, 25), (r))
+#define	COMP1_TX_WORDSIZE_2(r)		FIELD_GET(GENMASK(24, 22), (r))
+#define	COMP1_TX_WORDSIZE_1(r)		FIELD_GET(GENMASK(21, 19), (r))
+#define	COMP1_TX_WORDSIZE_0(r)		FIELD_GET(GENMASK(18, 16), (r))
+#define	COMP1_RX_ENABLED(r)		FIELD_GET(BIT(6), (r))
+#define	COMP1_TX_ENABLED(r)		FIELD_GET(BIT(5), (r))
+#define	COMP1_MODE_EN(r)		FIELD_GET(BIT(4), (r))
+#define	COMP1_APB_DATA_WIDTH(r)		FIELD_GET(GENMASK(1, 0), (r))
+#define	COMP2_RX_WORDSIZE_3(r)		FIELD_GET(GENMASK(12, 10), (r))
+#define	COMP2_RX_WORDSIZE_2(r)		FIELD_GET(GENMASK(9, 7), (r))
+#define	COMP2_RX_WORDSIZE_1(r)		FIELD_GET(GENMASK(5, 3), (r))
+#define	COMP2_RX_WORDSIZE_0(r)		FIELD_GET(GENMASK(2, 0), (r))
+
+/* Add 1 to the below registers to indicate the actual size */
+#define	COMP1_TX_CHANNELS(r)	(FIELD_GET(GENMASK(10, 9), (r)) + 1)
+#define	COMP1_RX_CHANNELS(r)	(FIELD_GET(GENMASK(8, 7), (r)) + 1)
+#define	COMP1_FIFO_DEPTH(r)	(FIELD_GET(GENMASK(3, 2), (r)) + 1)
+
+/* Number of entries in WORDSIZE and DATA_WIDTH parameter registers */
+#define	COMP_MAX_WORDSIZE	8	/* 3 bits register width */
+
+#define MAX_CHANNEL_NUM		8
+#define MIN_CHANNEL_NUM		2
+#define MAX_ISR			4
+
+#define TWO_CHANNEL_SUPPORT	2	/* up to 2.0 */
+#define FOUR_CHANNEL_SUPPORT	4	/* up to 3.1 */
+#define SIX_CHANNEL_SUPPORT	6	/* up to 5.1 */
+#define EIGHT_CHANNEL_SUPPORT	8	/* up to 7.1 */
+
+#define DWC_I2S_PLAY	BIT(0)
+#define DWC_I2S_RECORD	BIT(1)
+#define DW_I2S_CONSUMER	BIT(2)
+#define DW_I2S_PROVIDER	BIT(3)
+
+#define I2S_RXDMA	0x01C0
+#define I2S_RRXDMA	0x01C4
+#define I2S_TXDMA	0x01C8
+#define I2S_RTXDMA	0x01CC
+#define I2S_DMACR	0x0200
+#define I2S_DMAEN_RXBLOCK	(1 << 16)
+#define I2S_DMAEN_TXBLOCK	(1 << 17)
+
+/*
+ * struct i2s_clk_config_data - represent i2s clk configuration data
+ * @chan_nr: number of channel
+ * @data_width: number of bits per sample (8/16/24/32 bit)
+ * @sample_rate: sampling frequency (8Khz, 16Khz, 48Khz)
+ */
+struct i2s_clk_config_data {
+	int chan_nr;
+	u32 data_width;
+	u32 sample_rate;
+};
+
+struct kmb_i2s_info {
+	void __iomem *i2s_base;
+	void __iomem *pss_base;
+	struct clk *clk_i2s;
+	struct clk *clk_apb;
+	int active;
+	unsigned int capability;
+	unsigned int i2s_reg_comp1;
+	unsigned int i2s_reg_comp2;
+	struct device *dev;
+	u32 ccr;
+	u32 xfer_resolution;
+	u32 fifo_th;
+	bool clock_provider;
+	/* data related to DMA transfers b/w i2s and DMAC */
+	struct snd_dmaengine_dai_dma_data play_dma_data;
+	struct snd_dmaengine_dai_dma_data capture_dma_data;
+
+	struct i2s_clk_config_data config;
+	int (*i2s_clk_cfg)(struct i2s_clk_config_data *config);
+
+	/* data related to PIO transfers */
+	bool use_pio;
+	struct snd_pcm_substream *tx_substream;
+	struct snd_pcm_substream *rx_substream;
+	unsigned int tx_ptr;
+	unsigned int rx_ptr;
+	bool iec958_fmt;
+};
+
+#endif /* KMB_PLATFORM_H_ */