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, 374 insertions, 0 deletions

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
new file mode 100644
index 000000000..8579c7629
--- /dev/null
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -0,0 +1,374 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * Freescale DCU drm device driver
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/console.h>
+#include <linux/io.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fbdev_generic.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_modeset_helper.h>
+#include <drm/drm_module.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "fsl_dcu_drm_crtc.h"
+#include "fsl_dcu_drm_drv.h"
+#include "fsl_tcon.h"
+
+static int legacyfb_depth = 24;
+module_param(legacyfb_depth, int, 0444);
+
+static bool fsl_dcu_drm_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	if (reg == DCU_INT_STATUS || reg == DCU_UPDATE_MODE)
+		return true;
+
+	return false;
+}
+
+static const struct regmap_config fsl_dcu_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.volatile_reg = fsl_dcu_drm_is_volatile_reg,
+};
+
+static void fsl_dcu_irq_reset(struct drm_device *dev)
+{
+	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+
+	regmap_write(fsl_dev->regmap, DCU_INT_STATUS, ~0);
+	regmap_write(fsl_dev->regmap, DCU_INT_MASK, ~0);
+}
+
+static irqreturn_t fsl_dcu_drm_irq(int irq, void *arg)
+{
+	struct drm_device *dev = arg;
+	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+	unsigned int int_status;
+	int ret;
+
+	ret = regmap_read(fsl_dev->regmap, DCU_INT_STATUS, &int_status);
+	if (ret) {
+		dev_err(dev->dev, "read DCU_INT_STATUS failed\n");
+		return IRQ_NONE;
+	}
+
+	if (int_status & DCU_INT_STATUS_VBLANK)
+		drm_handle_vblank(dev, 0);
+
+	regmap_write(fsl_dev->regmap, DCU_INT_STATUS, int_status);
+
+	return IRQ_HANDLED;
+}
+
+static int fsl_dcu_irq_install(struct drm_device *dev, unsigned int irq)
+{
+	if (irq == IRQ_NOTCONNECTED)
+		return -ENOTCONN;
+
+	fsl_dcu_irq_reset(dev);
+
+	return request_irq(irq, fsl_dcu_drm_irq, 0, dev->driver->name, dev);
+}
+
+static void fsl_dcu_irq_uninstall(struct drm_device *dev)
+{
+	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+
+	fsl_dcu_irq_reset(dev);
+	free_irq(fsl_dev->irq, dev);
+}
+
+static int fsl_dcu_load(struct drm_device *dev, unsigned long flags)
+{
+	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+	int ret;
+
+	ret = fsl_dcu_drm_modeset_init(fsl_dev);
+	if (ret < 0) {
+		dev_err(dev->dev, "failed to initialize mode setting\n");
+		return ret;
+	}
+
+	ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+	if (ret < 0) {
+		dev_err(dev->dev, "failed to initialize vblank\n");
+		goto done_vblank;
+	}
+
+	ret = fsl_dcu_irq_install(dev, fsl_dev->irq);
+	if (ret < 0) {
+		dev_err(dev->dev, "failed to install IRQ handler\n");
+		goto done_irq;
+	}
+
+	if (legacyfb_depth != 16 && legacyfb_depth != 24 &&
+	    legacyfb_depth != 32) {
+		dev_warn(dev->dev,
+			"Invalid legacyfb_depth.  Defaulting to 24bpp\n");
+		legacyfb_depth = 24;
+	}
+
+	return 0;
+done_irq:
+	drm_kms_helper_poll_fini(dev);
+
+	drm_mode_config_cleanup(dev);
+done_vblank:
+	dev->dev_private = NULL;
+
+	return ret;
+}
+
+static void fsl_dcu_unload(struct drm_device *dev)
+{
+	drm_atomic_helper_shutdown(dev);
+	drm_kms_helper_poll_fini(dev);
+
+	drm_mode_config_cleanup(dev);
+	fsl_dcu_irq_uninstall(dev);
+
+	dev->dev_private = NULL;
+}
+
+DEFINE_DRM_GEM_DMA_FOPS(fsl_dcu_drm_fops);
+
+static const struct drm_driver fsl_dcu_drm_driver = {
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
+	.load			= fsl_dcu_load,
+	.unload			= fsl_dcu_unload,
+	DRM_GEM_DMA_DRIVER_OPS,
+	.fops			= &fsl_dcu_drm_fops,
+	.name			= "fsl-dcu-drm",
+	.desc			= "Freescale DCU DRM",
+	.date			= "20160425",
+	.major			= 1,
+	.minor			= 1,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int fsl_dcu_drm_pm_suspend(struct device *dev)
+{
+	struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev);
+	int ret;
+
+	if (!fsl_dev)
+		return 0;
+
+	disable_irq(fsl_dev->irq);
+
+	ret = drm_mode_config_helper_suspend(fsl_dev->drm);
+	if (ret) {
+		enable_irq(fsl_dev->irq);
+		return ret;
+	}
+
+	clk_disable_unprepare(fsl_dev->clk);
+
+	return 0;
+}
+
+static int fsl_dcu_drm_pm_resume(struct device *dev)
+{
+	struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev);
+	int ret;
+
+	if (!fsl_dev)
+		return 0;
+
+	ret = clk_prepare_enable(fsl_dev->clk);
+	if (ret < 0) {
+		dev_err(dev, "failed to enable dcu clk\n");
+		return ret;
+	}
+
+	if (fsl_dev->tcon)
+		fsl_tcon_bypass_enable(fsl_dev->tcon);
+	fsl_dcu_drm_init_planes(fsl_dev->drm);
+	enable_irq(fsl_dev->irq);
+
+	drm_mode_config_helper_resume(fsl_dev->drm);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops fsl_dcu_drm_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(fsl_dcu_drm_pm_suspend, fsl_dcu_drm_pm_resume)
+};
+
+static const struct fsl_dcu_soc_data fsl_dcu_ls1021a_data = {
+	.name = "ls1021a",
+	.total_layer = 16,
+	.max_layer = 4,
+	.layer_regs = LS1021A_LAYER_REG_NUM,
+};
+
+static const struct fsl_dcu_soc_data fsl_dcu_vf610_data = {
+	.name = "vf610",
+	.total_layer = 64,
+	.max_layer = 6,
+	.layer_regs = VF610_LAYER_REG_NUM,
+};
+
+static const struct of_device_id fsl_dcu_of_match[] = {
+	{
+		.compatible = "fsl,ls1021a-dcu",
+		.data = &fsl_dcu_ls1021a_data,
+	}, {
+		.compatible = "fsl,vf610-dcu",
+		.data = &fsl_dcu_vf610_data,
+	}, {
+	},
+};
+MODULE_DEVICE_TABLE(of, fsl_dcu_of_match);
+
+static int fsl_dcu_drm_probe(struct platform_device *pdev)
+{
+	struct fsl_dcu_drm_device *fsl_dev;
+	struct drm_device *drm;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	void __iomem *base;
+	struct clk *pix_clk_in;
+	char pix_clk_name[32];
+	const char *pix_clk_in_name;
+	const struct of_device_id *id;
+	int ret;
+	u8 div_ratio_shift = 0;
+
+	fsl_dev = devm_kzalloc(dev, sizeof(*fsl_dev), GFP_KERNEL);
+	if (!fsl_dev)
+		return -ENOMEM;
+
+	id = of_match_node(fsl_dcu_of_match, pdev->dev.of_node);
+	if (!id)
+		return -ENODEV;
+	fsl_dev->soc = id->data;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base)) {
+		ret = PTR_ERR(base);
+		return ret;
+	}
+
+	fsl_dev->irq = platform_get_irq(pdev, 0);
+	if (fsl_dev->irq < 0) {
+		dev_err(dev, "failed to get irq\n");
+		return fsl_dev->irq;
+	}
+
+	fsl_dev->regmap = devm_regmap_init_mmio(dev, base,
+			&fsl_dcu_regmap_config);
+	if (IS_ERR(fsl_dev->regmap)) {
+		dev_err(dev, "regmap init failed\n");
+		return PTR_ERR(fsl_dev->regmap);
+	}
+
+	fsl_dev->clk = devm_clk_get(dev, "dcu");
+	if (IS_ERR(fsl_dev->clk)) {
+		dev_err(dev, "failed to get dcu clock\n");
+		return PTR_ERR(fsl_dev->clk);
+	}
+	ret = clk_prepare_enable(fsl_dev->clk);
+	if (ret < 0) {
+		dev_err(dev, "failed to enable dcu clk\n");
+		return ret;
+	}
+
+	pix_clk_in = devm_clk_get(dev, "pix");
+	if (IS_ERR(pix_clk_in)) {
+		/* legancy binding, use dcu clock as pixel clock input */
+		pix_clk_in = fsl_dev->clk;
+	}
+
+	if (of_property_read_bool(dev->of_node, "big-endian"))
+		div_ratio_shift = 24;
+
+	pix_clk_in_name = __clk_get_name(pix_clk_in);
+	snprintf(pix_clk_name, sizeof(pix_clk_name), "%s_pix", pix_clk_in_name);
+	fsl_dev->pix_clk = clk_register_divider(dev, pix_clk_name,
+			pix_clk_in_name, 0, base + DCU_DIV_RATIO,
+			div_ratio_shift, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL);
+	if (IS_ERR(fsl_dev->pix_clk)) {
+		dev_err(dev, "failed to register pix clk\n");
+		ret = PTR_ERR(fsl_dev->pix_clk);
+		goto disable_clk;
+	}
+
+	fsl_dev->tcon = fsl_tcon_init(dev);
+
+	drm = drm_dev_alloc(&fsl_dcu_drm_driver, dev);
+	if (IS_ERR(drm)) {
+		ret = PTR_ERR(drm);
+		goto unregister_pix_clk;
+	}
+
+	fsl_dev->dev = dev;
+	fsl_dev->drm = drm;
+	fsl_dev->np = dev->of_node;
+	drm->dev_private = fsl_dev;
+	dev_set_drvdata(dev, fsl_dev);
+
+	ret = drm_dev_register(drm, 0);
+	if (ret < 0)
+		goto put;
+
+	drm_fbdev_generic_setup(drm, legacyfb_depth);
+
+	return 0;
+
+put:
+	drm_dev_put(drm);
+unregister_pix_clk:
+	clk_unregister(fsl_dev->pix_clk);
+disable_clk:
+	clk_disable_unprepare(fsl_dev->clk);
+	return ret;
+}
+
+static int fsl_dcu_drm_remove(struct platform_device *pdev)
+{
+	struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev);
+
+	drm_dev_unregister(fsl_dev->drm);
+	drm_dev_put(fsl_dev->drm);
+	clk_disable_unprepare(fsl_dev->clk);
+	clk_unregister(fsl_dev->pix_clk);
+
+	return 0;
+}
+
+static struct platform_driver fsl_dcu_drm_platform_driver = {
+	.probe		= fsl_dcu_drm_probe,
+	.remove		= fsl_dcu_drm_remove,
+	.driver		= {
+		.name	= "fsl-dcu",
+		.pm	= &fsl_dcu_drm_pm_ops,
+		.of_match_table = fsl_dcu_of_match,
+	},
+};
+
+drm_module_platform_driver(fsl_dcu_drm_platform_driver);
+
+MODULE_DESCRIPTION("Freescale DCU DRM Driver");
+MODULE_LICENSE("GPL");