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, 205 insertions, 0 deletions

diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
new file mode 100644
index 000000000..22d412cab
--- /dev/null
+++ b/drivers/scsi/zalon.c
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Zalon 53c7xx device driver.
+ * By Richard Hirst (rhirst@linuxcare.com)
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+
+#include "../parisc/gsc.h"
+
+#include "ncr53c8xx.h"
+
+MODULE_AUTHOR("Richard Hirst");
+MODULE_DESCRIPTION("Bluefish/Zalon 720 SCSI Driver");
+MODULE_LICENSE("GPL");
+
+#define GSC_SCSI_ZALON_OFFSET 0x800
+
+#define IO_MODULE_EIM		(1*4)
+#define IO_MODULE_DC_ADATA	(2*4)
+#define IO_MODULE_II_CDATA	(3*4)
+#define IO_MODULE_IO_COMMAND	(12*4)
+#define IO_MODULE_IO_STATUS	(13*4)
+
+#define IOSTATUS_RY		0x40
+#define IOSTATUS_FE		0x80
+#define IOIIDATA_SMINT5L	0x40000000
+#define IOIIDATA_MINT5EN	0x20000000
+#define IOIIDATA_PACKEN		0x10000000
+#define IOIIDATA_PREFETCHEN	0x08000000
+#define IOIIDATA_IOII		0x00000020
+
+#define CMD_RESET		5
+
+static struct ncr_chip zalon720_chip __initdata = {
+	.revision_id =	0x0f,
+	.burst_max =	3,
+	.offset_max =	8,
+	.nr_divisor =	4,
+	.features =	FE_WIDE | FE_DIFF | FE_EHP| FE_MUX | FE_EA,
+};
+
+
+
+#if 0
+/* FIXME:
+ * Is this function dead code? or is someone planning on using it in the
+ * future.  The clock = (int) pdc_result[16] does not look correct to
+ * me ... I think it should be iodc_data[16].  Since this cause a compile
+ * error with the new encapsulated PDC, I'm not compiling in this function.
+ * - RB
+ */
+/* poke SCSI clock out of iodc data */
+
+static u8 iodc_data[32] __attribute__ ((aligned (64)));
+static unsigned long pdc_result[32] __attribute__ ((aligned (16))) ={0,0,0,0};
+
+static int 
+lasi_scsi_clock(void * hpa, int defaultclock)
+{
+	int clock, status;
+
+	status = pdc_iodc_read(&pdc_result, hpa, 0, &iodc_data, 32 );
+	if (status == PDC_RET_OK) {
+		clock = (int) pdc_result[16];
+	} else {
+		printk(KERN_WARNING "%s: pdc_iodc_read returned %d\n", __func__, status);
+		clock = defaultclock; 
+	}
+
+	printk(KERN_DEBUG "%s: SCSI clock %d\n", __func__, clock);
+ 	return clock;
+}
+#endif
+
+static struct scsi_host_template zalon7xx_template = {
+	.module		= THIS_MODULE,
+	.proc_name	= "zalon7xx",
+	.cmd_size	= sizeof(struct ncr_cmd_priv),
+};
+
+static int __init
+zalon_probe(struct parisc_device *dev)
+{
+	struct gsc_irq gsc_irq;
+	u32 zalon_vers;
+	int error = -ENODEV;
+	void __iomem *zalon = ioremap(dev->hpa.start, 4096);
+	void __iomem *io_port = zalon + GSC_SCSI_ZALON_OFFSET;
+	static int unit = 0;
+	struct Scsi_Host *host;
+	struct ncr_device device;
+
+	__raw_writel(CMD_RESET, zalon + IO_MODULE_IO_COMMAND);
+	while (!(__raw_readl(zalon + IO_MODULE_IO_STATUS) & IOSTATUS_RY))
+		cpu_relax();
+	__raw_writel(IOIIDATA_MINT5EN | IOIIDATA_PACKEN | IOIIDATA_PREFETCHEN,
+		zalon + IO_MODULE_II_CDATA);
+
+	/* XXX: Save the Zalon version for bug workarounds? */
+	zalon_vers = (__raw_readl(zalon + IO_MODULE_II_CDATA) >> 24) & 0x07;
+
+	/* Setup the interrupts first.
+	** Later on request_irq() will register the handler.
+	*/
+	dev->irq = gsc_alloc_irq(&gsc_irq);
+
+	printk(KERN_INFO "%s: Zalon version %d, IRQ %d\n", __func__,
+		zalon_vers, dev->irq);
+
+	__raw_writel(gsc_irq.txn_addr | gsc_irq.txn_data, zalon + IO_MODULE_EIM);
+
+	if (zalon_vers == 0)
+		printk(KERN_WARNING "%s: Zalon 1.1 or earlier\n", __func__);
+
+	memset(&device, 0, sizeof(struct ncr_device));
+
+	/* The following three are needed before any other access. */
+	__raw_writeb(0x20, io_port + 0x38); /* DCNTL_REG,  EA  */
+	__raw_writeb(0x04, io_port + 0x1b); /* CTEST0_REG, EHP */
+	__raw_writeb(0x80, io_port + 0x22); /* CTEST4_REG, MUX */
+
+	/* Initialise ncr_device structure with items required by ncr_attach. */
+	device.chip		= zalon720_chip;
+	device.host_id		= 7;
+	device.dev		= &dev->dev;
+	device.slot.base	= dev->hpa.start + GSC_SCSI_ZALON_OFFSET;
+	device.slot.base_v	= io_port;
+	device.slot.irq		= dev->irq;
+	device.differential	= 2;
+
+	host = ncr_attach(&zalon7xx_template, unit, &device);
+	if (!host)
+		return -ENODEV;
+
+	if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
+	  dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ",
+		     dev->irq);
+		goto fail;
+	}
+
+	unit++;
+
+	dev_set_drvdata(&dev->dev, host);
+
+	error = scsi_add_host(host, &dev->dev);
+	if (error)
+		goto fail_free_irq;
+
+	scsi_scan_host(host);
+	return 0;
+
+ fail_free_irq:
+	free_irq(dev->irq, host);
+ fail:
+	ncr53c8xx_release(host);
+	return error;
+}
+
+static const struct parisc_device_id zalon_tbl[] __initconst = {
+	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00089 }, 
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(parisc, zalon_tbl);
+
+static void __exit zalon_remove(struct parisc_device *dev)
+{
+	struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
+
+	scsi_remove_host(host);
+	ncr53c8xx_release(host);
+	free_irq(dev->irq, host);
+}
+
+static struct parisc_driver zalon_driver __refdata = {
+	.name =		"zalon",
+	.id_table =	zalon_tbl,
+	.probe =	zalon_probe,
+	.remove =	__exit_p(zalon_remove),
+};
+
+static int __init zalon7xx_init(void)
+{
+	int ret = ncr53c8xx_init();
+	if (!ret)
+		ret = register_parisc_driver(&zalon_driver);
+	if (ret)
+		ncr53c8xx_exit();
+	return ret;
+}
+
+static void __exit zalon7xx_exit(void)
+{
+	unregister_parisc_driver(&zalon_driver);
+	ncr53c8xx_exit();
+}
+
+module_init(zalon7xx_init);
+module_exit(zalon7xx_exit);