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, 313 insertions, 0 deletions

diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c
new file mode 100644
index 000000000..f134b4a46
--- /dev/null
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c
@@ -0,0 +1,313 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for Sound Core PDAudioCF soundcard
+ *
+ * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include <sound/core.h>
+#include "pdaudiocf.h"
+#include <sound/initval.h>
+#include <asm/irq_regs.h>
+
+/*
+ *
+ */
+irqreturn_t pdacf_interrupt(int irq, void *dev)
+{
+	struct snd_pdacf *chip = dev;
+	unsigned short stat;
+	bool wake_thread = false;
+
+	if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|
+				  PDAUDIOCF_STAT_IS_CONFIGURED|
+				  PDAUDIOCF_STAT_IS_SUSPENDED)) != PDAUDIOCF_STAT_IS_CONFIGURED)
+		return IRQ_HANDLED;	/* IRQ_NONE here? */
+
+	stat = inw(chip->port + PDAUDIOCF_REG_ISR);
+	if (stat & (PDAUDIOCF_IRQLVL|PDAUDIOCF_IRQOVR)) {
+		if (stat & PDAUDIOCF_IRQOVR)	/* should never happen */
+			snd_printk(KERN_ERR "PDAUDIOCF SRAM buffer overrun detected!\n");
+		if (chip->pcm_substream)
+			wake_thread = true;
+		if (!(stat & PDAUDIOCF_IRQAKM))
+			stat |= PDAUDIOCF_IRQAKM;	/* check rate */
+	}
+	if (get_irq_regs() != NULL)
+		snd_ak4117_check_rate_and_errors(chip->ak4117, 0);
+	return wake_thread ? IRQ_WAKE_THREAD : IRQ_HANDLED;
+}
+
+static inline void pdacf_transfer_mono16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
+{
+	while (size-- > 0) {
+		*dst++ = inw(rdp_port) ^ xor;
+		inw(rdp_port);
+	}
+}
+
+static inline void pdacf_transfer_mono32(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		inw(rdp_port);
+		*dst++ = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
+	}
+}
+
+static inline void pdacf_transfer_stereo16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
+{
+	while (size-- > 0) {
+		*dst++ = inw(rdp_port) ^ xor;
+		*dst++ = inw(rdp_port) ^ xor;
+	}
+}
+
+static inline void pdacf_transfer_stereo32(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2, val3;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		val3 = inw(rdp_port);
+		*dst++ = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
+		*dst++ = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor;
+	}
+}
+
+static inline void pdacf_transfer_mono16sw(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
+{
+	while (size-- > 0) {
+		*dst++ = swab16(inw(rdp_port) ^ xor);
+		inw(rdp_port);
+	}
+}
+
+static inline void pdacf_transfer_mono32sw(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		inw(rdp_port);
+		*dst++ = swab32((((val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor);
+	}
+}
+
+static inline void pdacf_transfer_stereo16sw(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
+{
+	while (size-- > 0) {
+		*dst++ = swab16(inw(rdp_port) ^ xor);
+		*dst++ = swab16(inw(rdp_port) ^ xor);
+	}
+}
+
+static inline void pdacf_transfer_stereo32sw(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2, val3;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		val3 = inw(rdp_port);
+		*dst++ = swab32((((val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor);
+		*dst++ = swab32((((u32)val3 << 16) | (val2 & 0xff00)) ^ xor);
+	}
+}
+
+static inline void pdacf_transfer_mono24le(u8 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2;
+	register u32 xval1;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		inw(rdp_port);
+		xval1 = (((val2 & 0xff) << 8) | (val1 << 16)) ^ xor;
+		*dst++ = (u8)(xval1 >> 8);
+		*dst++ = (u8)(xval1 >> 16);
+		*dst++ = (u8)(xval1 >> 24);
+	}
+}
+
+static inline void pdacf_transfer_mono24be(u8 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2;
+	register u32 xval1;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		inw(rdp_port);
+		xval1 = (((val2 & 0xff) << 8) | (val1 << 16)) ^ xor;
+		*dst++ = (u8)(xval1 >> 24);
+		*dst++ = (u8)(xval1 >> 16);
+		*dst++ = (u8)(xval1 >> 8);
+	}
+}
+
+static inline void pdacf_transfer_stereo24le(u8 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2, val3;
+	register u32 xval1, xval2;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		val3 = inw(rdp_port);
+		xval1 = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
+		xval2 = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor;
+		*dst++ = (u8)(xval1 >> 8);
+		*dst++ = (u8)(xval1 >> 16);
+		*dst++ = (u8)(xval1 >> 24);
+		*dst++ = (u8)(xval2 >> 8);
+		*dst++ = (u8)(xval2 >> 16);
+		*dst++ = (u8)(xval2 >> 24);
+	}
+}
+
+static inline void pdacf_transfer_stereo24be(u8 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
+{
+	register u16 val1, val2, val3;
+	register u32 xval1, xval2;
+
+	while (size-- > 0) {
+		val1 = inw(rdp_port);
+		val2 = inw(rdp_port);
+		val3 = inw(rdp_port);
+		xval1 = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
+		xval2 = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor;
+		*dst++ = (u8)(xval1 >> 24);
+		*dst++ = (u8)(xval1 >> 16);
+		*dst++ = (u8)(xval1 >> 8);
+		*dst++ = (u8)(xval2 >> 24);
+		*dst++ = (u8)(xval2 >> 16);
+		*dst++ = (u8)(xval2 >> 8);
+	}
+}
+
+static void pdacf_transfer(struct snd_pdacf *chip, unsigned int size, unsigned int off)
+{
+	unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD;
+	unsigned int xor = chip->pcm_xor;
+
+	if (chip->pcm_sample == 3) {
+		if (chip->pcm_little) {
+			if (chip->pcm_channels == 1) {
+				pdacf_transfer_mono24le((char *)chip->pcm_area + (off * 3), xor, size, rdp_port);
+			} else {
+				pdacf_transfer_stereo24le((char *)chip->pcm_area + (off * 6), xor, size, rdp_port);
+			}
+		} else {
+			if (chip->pcm_channels == 1) {
+				pdacf_transfer_mono24be((char *)chip->pcm_area + (off * 3), xor, size, rdp_port);
+			} else {
+				pdacf_transfer_stereo24be((char *)chip->pcm_area + (off * 6), xor, size, rdp_port);
+			}			
+		}
+		return;
+	}
+	if (chip->pcm_swab == 0) {
+		if (chip->pcm_channels == 1) {
+			if (chip->pcm_frame == 2) {
+				pdacf_transfer_mono16((u16 *)chip->pcm_area + off, xor, size, rdp_port);
+			} else {
+				pdacf_transfer_mono32((u32 *)chip->pcm_area + off, xor, size, rdp_port);
+			}
+		} else {
+			if (chip->pcm_frame == 2) {
+				pdacf_transfer_stereo16((u16 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
+			} else {
+				pdacf_transfer_stereo32((u32 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
+			}
+		}
+	} else {
+		if (chip->pcm_channels == 1) {
+			if (chip->pcm_frame == 2) {
+				pdacf_transfer_mono16sw((u16 *)chip->pcm_area + off, xor, size, rdp_port);
+			} else {
+				pdacf_transfer_mono32sw((u32 *)chip->pcm_area + off, xor, size, rdp_port);
+			}
+		} else {
+			if (chip->pcm_frame == 2) {
+				pdacf_transfer_stereo16sw((u16 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
+			} else {
+				pdacf_transfer_stereo32sw((u32 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
+			}
+		}
+	}
+}
+
+irqreturn_t pdacf_threaded_irq(int irq, void *dev)
+{
+	struct snd_pdacf *chip = dev;
+	int size, off, cont, rdp, wdp;
+
+	if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|PDAUDIOCF_STAT_IS_CONFIGURED)) != PDAUDIOCF_STAT_IS_CONFIGURED)
+		return IRQ_HANDLED;
+	
+	if (chip->pcm_substream == NULL || chip->pcm_substream->runtime == NULL || !snd_pcm_running(chip->pcm_substream))
+		return IRQ_HANDLED;
+
+	rdp = inw(chip->port + PDAUDIOCF_REG_RDP);
+	wdp = inw(chip->port + PDAUDIOCF_REG_WDP);
+	/* printk(KERN_DEBUG "TASKLET: rdp = %x, wdp = %x\n", rdp, wdp); */
+	size = wdp - rdp;
+	if (size < 0)
+		size += 0x10000;
+	if (size == 0)
+		size = 0x10000;
+	size /= chip->pcm_frame;
+	if (size > 64)
+		size -= 32;
+
+#if 0
+	chip->pcm_hwptr += size;
+	chip->pcm_hwptr %= chip->pcm_size;
+	chip->pcm_tdone += size;
+	if (chip->pcm_frame == 2) {
+		unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD;
+		while (size-- > 0) {
+			inw(rdp_port);
+			inw(rdp_port);
+		}
+	} else {
+		unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD;
+		while (size-- > 0) {
+			inw(rdp_port);
+			inw(rdp_port);
+			inw(rdp_port);
+		}
+	}
+#else
+	off = chip->pcm_hwptr + chip->pcm_tdone;
+	off %= chip->pcm_size;
+	chip->pcm_tdone += size;
+	while (size > 0) {
+		cont = chip->pcm_size - off;
+		if (cont > size)
+			cont = size;
+		pdacf_transfer(chip, cont, off);
+		off += cont;
+		off %= chip->pcm_size;
+		size -= cont;
+	}
+#endif
+	mutex_lock(&chip->reg_lock);
+	while (chip->pcm_tdone >= chip->pcm_period) {
+		chip->pcm_hwptr += chip->pcm_period;
+		chip->pcm_hwptr %= chip->pcm_size;
+		chip->pcm_tdone -= chip->pcm_period;
+		mutex_unlock(&chip->reg_lock);
+		snd_pcm_period_elapsed(chip->pcm_substream);
+		mutex_lock(&chip->reg_lock);
+	}
+	mutex_unlock(&chip->reg_lock);
+	return IRQ_HANDLED;
+}