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, 232 insertions, 0 deletions

diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
new file mode 100644
index 000000000..782162d2f
--- /dev/null
+++ b/drivers/ata/pata_triflex.c
@@ -0,0 +1,232 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * pata_triflex.c 	- Compaq PATA for new ATA layer
+ *			  (C) 2005 Red Hat Inc
+ *			  Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ * based upon
+ *
+ * triflex.c
+ *
+ * IDE Chipset driver for the Compaq TriFlex IDE controller.
+ *
+ * Known to work with the Compaq Workstation 5x00 series.
+ *
+ * Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
+ * Author: Torben Mathiasen <torben.mathiasen@hp.com>
+ *
+ * Loosely based on the piix & svwks drivers.
+ *
+ * Documentation:
+ *	Not publicly available.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_triflex"
+#define DRV_VERSION "0.2.8"
+
+/**
+ *	triflex_prereset		-	probe begin
+ *	@link: ATA link
+ *	@deadline: deadline jiffies for the operation
+ *
+ *	Set up cable type and use generic probe init
+ */
+
+static int triflex_prereset(struct ata_link *link, unsigned long deadline)
+{
+	static const struct pci_bits triflex_enable_bits[] = {
+		{ 0x80, 1, 0x01, 0x01 },
+		{ 0x80, 1, 0x02, 0x02 }
+	};
+
+	struct ata_port *ap = link->ap;
+	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+	if (!pci_test_config_bits(pdev, &triflex_enable_bits[ap->port_no]))
+		return -ENOENT;
+
+	return ata_sff_prereset(link, deadline);
+}
+
+
+
+/**
+ *	triflex_load_timing		-	timing configuration
+ *	@ap: ATA interface
+ *	@adev: Device on the bus
+ *	@speed: speed to configure
+ *
+ *	The Triflex has one set of timings per device per channel. This
+ *	means we must do some switching. As the PIO and DMA timings don't
+ *	match we have to do some reloading unlike PIIX devices where tuning
+ *	tricks can avoid it.
+ */
+
+static void triflex_load_timing(struct ata_port *ap, struct ata_device *adev, int speed)
+{
+	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+	u32 timing = 0;
+	u32 triflex_timing, old_triflex_timing;
+	int channel_offset = ap->port_no ? 0x74: 0x70;
+	unsigned int is_slave	= (adev->devno != 0);
+
+
+	pci_read_config_dword(pdev, channel_offset, &old_triflex_timing);
+	triflex_timing = old_triflex_timing;
+
+	switch(speed)
+	{
+		case XFER_MW_DMA_2:
+			timing = 0x0103;break;
+		case XFER_MW_DMA_1:
+			timing = 0x0203;break;
+		case XFER_MW_DMA_0:
+			timing = 0x0808;break;
+		case XFER_SW_DMA_2:
+		case XFER_SW_DMA_1:
+		case XFER_SW_DMA_0:
+			timing = 0x0F0F;break;
+		case XFER_PIO_4:
+			timing = 0x0202;break;
+		case XFER_PIO_3:
+			timing = 0x0204;break;
+		case XFER_PIO_2:
+			timing = 0x0404;break;
+		case XFER_PIO_1:
+			timing = 0x0508;break;
+		case XFER_PIO_0:
+			timing = 0x0808;break;
+		default:
+			BUG();
+	}
+	triflex_timing &= ~ (0xFFFF << (16 * is_slave));
+	triflex_timing |= (timing << (16 * is_slave));
+
+	if (triflex_timing != old_triflex_timing)
+		pci_write_config_dword(pdev, channel_offset, triflex_timing);
+}
+
+/**
+ *	triflex_set_piomode	-	set initial PIO mode data
+ *	@ap: ATA interface
+ *	@adev: ATA device
+ *
+ *	Use the timing loader to set up the PIO mode. We have to do this
+ *	because DMA start/stop will only be called once DMA occurs. If there
+ *	has been no DMA then the PIO timings are still needed.
+ */
+static void triflex_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+	triflex_load_timing(ap, adev, adev->pio_mode);
+}
+
+/**
+ *	triflex_bmdma_start	-	DMA start callback
+ *	@qc: Command in progress
+ *
+ *	Usually drivers set the DMA timing at the point the set_dmamode call
+ *	is made. Triflex however requires we load new timings on the
+ *	transition or keep matching PIO/DMA pairs (ie MWDMA2/PIO4 etc).
+ *	We load the DMA timings just before starting DMA and then restore
+ *	the PIO timing when the DMA is finished.
+ */
+
+static void triflex_bmdma_start(struct ata_queued_cmd *qc)
+{
+	triflex_load_timing(qc->ap, qc->dev, qc->dev->dma_mode);
+	ata_bmdma_start(qc);
+}
+
+/**
+ *	triflex_bmdma_stop	-	DMA stop callback
+ *	@qc: ATA command
+ *
+ *	We loaded new timings in dma_start, as a result we need to restore
+ *	the PIO timings in dma_stop so that the next command issue gets the
+ *	right clock values.
+ */
+
+static void triflex_bmdma_stop(struct ata_queued_cmd *qc)
+{
+	ata_bmdma_stop(qc);
+	triflex_load_timing(qc->ap, qc->dev, qc->dev->pio_mode);
+}
+
+static struct scsi_host_template triflex_sht = {
+	ATA_BMDMA_SHT(DRV_NAME),
+};
+
+static struct ata_port_operations triflex_port_ops = {
+	.inherits	= &ata_bmdma_port_ops,
+	.bmdma_start 	= triflex_bmdma_start,
+	.bmdma_stop	= triflex_bmdma_stop,
+	.cable_detect	= ata_cable_40wire,
+	.set_piomode	= triflex_set_piomode,
+	.prereset	= triflex_prereset,
+};
+
+static int triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+	static const struct ata_port_info info = {
+		.flags = ATA_FLAG_SLAVE_POSS,
+		.pio_mask = ATA_PIO4,
+		.mwdma_mask = ATA_MWDMA2,
+		.port_ops = &triflex_port_ops
+	};
+	const struct ata_port_info *ppi[] = { &info, NULL };
+
+	ata_print_version_once(&dev->dev, DRV_VERSION);
+
+	return ata_pci_bmdma_init_one(dev, ppi, &triflex_sht, NULL, 0);
+}
+
+static const struct pci_device_id triflex[] = {
+	{ PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), },
+
+	{ },
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int triflex_ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
+{
+	struct ata_host *host = pci_get_drvdata(pdev);
+
+	ata_host_suspend(host, mesg);
+
+	/*
+	 * We must not disable or powerdown the device.
+	 * APM bios refuses to suspend if IDE is not accessible.
+	 */
+	pci_save_state(pdev);
+
+	return 0;
+}
+
+#endif
+
+static struct pci_driver triflex_pci_driver = {
+	.name 		= DRV_NAME,
+	.id_table	= triflex,
+	.probe 		= triflex_init_one,
+	.remove		= ata_pci_remove_one,
+#ifdef CONFIG_PM_SLEEP
+	.suspend	= triflex_ata_pci_device_suspend,
+	.resume		= ata_pci_device_resume,
+#endif
+};
+
+module_pci_driver(triflex_pci_driver);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Compaq Triflex");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, triflex);
+MODULE_VERSION(DRV_VERSION);