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, 364 insertions, 0 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
new file mode 100644
index 000000000..ac8580f50
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dwmac-imx.c - DWMAC Specific Glue layer for NXP imx8
+ *
+ * Copyright 2020 NXP
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_net.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pm_wakeirq.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/stmmac.h>
+
+#include "stmmac_platform.h"
+
+#define GPR_ENET_QOS_INTF_MODE_MASK	GENMASK(21, 16)
+#define GPR_ENET_QOS_INTF_SEL_MII	(0x0 << 16)
+#define GPR_ENET_QOS_INTF_SEL_RMII	(0x4 << 16)
+#define GPR_ENET_QOS_INTF_SEL_RGMII	(0x1 << 16)
+#define GPR_ENET_QOS_CLK_GEN_EN		(0x1 << 19)
+#define GPR_ENET_QOS_CLK_TX_CLK_SEL	(0x1 << 20)
+#define GPR_ENET_QOS_RGMII_EN		(0x1 << 21)
+
+#define MX93_GPR_ENET_QOS_INTF_MODE_MASK	GENMASK(3, 0)
+#define MX93_GPR_ENET_QOS_INTF_SEL_MII		(0x0 << 1)
+#define MX93_GPR_ENET_QOS_INTF_SEL_RMII		(0x4 << 1)
+#define MX93_GPR_ENET_QOS_INTF_SEL_RGMII	(0x1 << 1)
+#define MX93_GPR_ENET_QOS_CLK_GEN_EN		(0x1 << 0)
+
+struct imx_dwmac_ops {
+	u32 addr_width;
+	bool mac_rgmii_txclk_auto_adj;
+
+	int (*set_intf_mode)(struct plat_stmmacenet_data *plat_dat);
+};
+
+struct imx_priv_data {
+	struct device *dev;
+	struct clk *clk_tx;
+	struct clk *clk_mem;
+	struct regmap *intf_regmap;
+	u32 intf_reg_off;
+	bool rmii_refclk_ext;
+
+	const struct imx_dwmac_ops *ops;
+	struct plat_stmmacenet_data *plat_dat;
+};
+
+static int imx8mp_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+{
+	struct imx_priv_data *dwmac = plat_dat->bsp_priv;
+	int val;
+
+	switch (plat_dat->interface) {
+	case PHY_INTERFACE_MODE_MII:
+		val = GPR_ENET_QOS_INTF_SEL_MII;
+		break;
+	case PHY_INTERFACE_MODE_RMII:
+		val = GPR_ENET_QOS_INTF_SEL_RMII;
+		val |= (dwmac->rmii_refclk_ext ? 0 : GPR_ENET_QOS_CLK_TX_CLK_SEL);
+		break;
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		val = GPR_ENET_QOS_INTF_SEL_RGMII |
+		      GPR_ENET_QOS_RGMII_EN;
+		break;
+	default:
+		pr_debug("imx dwmac doesn't support %d interface\n",
+			 plat_dat->interface);
+		return -EINVAL;
+	}
+
+	val |= GPR_ENET_QOS_CLK_GEN_EN;
+	return regmap_update_bits(dwmac->intf_regmap, dwmac->intf_reg_off,
+				  GPR_ENET_QOS_INTF_MODE_MASK, val);
+};
+
+static int
+imx8dxl_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+{
+	int ret = 0;
+
+	/* TBD: depends on imx8dxl scu interfaces to be upstreamed */
+	return ret;
+}
+
+static int imx93_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+{
+	struct imx_priv_data *dwmac = plat_dat->bsp_priv;
+	int val;
+
+	switch (plat_dat->interface) {
+	case PHY_INTERFACE_MODE_MII:
+		val = MX93_GPR_ENET_QOS_INTF_SEL_MII;
+		break;
+	case PHY_INTERFACE_MODE_RMII:
+		val = MX93_GPR_ENET_QOS_INTF_SEL_RMII;
+		break;
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		val = MX93_GPR_ENET_QOS_INTF_SEL_RGMII;
+		break;
+	default:
+		dev_dbg(dwmac->dev, "imx dwmac doesn't support %d interface\n",
+			 plat_dat->interface);
+		return -EINVAL;
+	}
+
+	val |= MX93_GPR_ENET_QOS_CLK_GEN_EN;
+	return regmap_update_bits(dwmac->intf_regmap, dwmac->intf_reg_off,
+				  MX93_GPR_ENET_QOS_INTF_MODE_MASK, val);
+};
+
+static int imx_dwmac_clks_config(void *priv, bool enabled)
+{
+	struct imx_priv_data *dwmac = priv;
+	int ret = 0;
+
+	if (enabled) {
+		ret = clk_prepare_enable(dwmac->clk_mem);
+		if (ret) {
+			dev_err(dwmac->dev, "mem clock enable failed\n");
+			return ret;
+		}
+
+		ret = clk_prepare_enable(dwmac->clk_tx);
+		if (ret) {
+			dev_err(dwmac->dev, "tx clock enable failed\n");
+			clk_disable_unprepare(dwmac->clk_mem);
+			return ret;
+		}
+	} else {
+		clk_disable_unprepare(dwmac->clk_tx);
+		clk_disable_unprepare(dwmac->clk_mem);
+	}
+
+	return ret;
+}
+
+static int imx_dwmac_init(struct platform_device *pdev, void *priv)
+{
+	struct plat_stmmacenet_data *plat_dat;
+	struct imx_priv_data *dwmac = priv;
+	int ret;
+
+	plat_dat = dwmac->plat_dat;
+
+	if (dwmac->ops->set_intf_mode) {
+		ret = dwmac->ops->set_intf_mode(plat_dat);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void imx_dwmac_exit(struct platform_device *pdev, void *priv)
+{
+	/* nothing to do now */
+}
+
+static void imx_dwmac_fix_speed(void *priv, unsigned int speed)
+{
+	struct plat_stmmacenet_data *plat_dat;
+	struct imx_priv_data *dwmac = priv;
+	unsigned long rate;
+	int err;
+
+	plat_dat = dwmac->plat_dat;
+
+	if (dwmac->ops->mac_rgmii_txclk_auto_adj ||
+	    (plat_dat->interface == PHY_INTERFACE_MODE_RMII) ||
+	    (plat_dat->interface == PHY_INTERFACE_MODE_MII))
+		return;
+
+	switch (speed) {
+	case SPEED_1000:
+		rate = 125000000;
+		break;
+	case SPEED_100:
+		rate = 25000000;
+		break;
+	case SPEED_10:
+		rate = 2500000;
+		break;
+	default:
+		dev_err(dwmac->dev, "invalid speed %u\n", speed);
+		return;
+	}
+
+	err = clk_set_rate(dwmac->clk_tx, rate);
+	if (err < 0)
+		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
+}
+
+static int
+imx_dwmac_parse_dt(struct imx_priv_data *dwmac, struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	int err = 0;
+
+	if (of_get_property(np, "snps,rmii_refclk_ext", NULL))
+		dwmac->rmii_refclk_ext = true;
+
+	dwmac->clk_tx = devm_clk_get(dev, "tx");
+	if (IS_ERR(dwmac->clk_tx)) {
+		dev_err(dev, "failed to get tx clock\n");
+		return PTR_ERR(dwmac->clk_tx);
+	}
+
+	dwmac->clk_mem = NULL;
+
+	if (of_machine_is_compatible("fsl,imx8dxl") ||
+	    of_machine_is_compatible("fsl,imx93")) {
+		dwmac->clk_mem = devm_clk_get(dev, "mem");
+		if (IS_ERR(dwmac->clk_mem)) {
+			dev_err(dev, "failed to get mem clock\n");
+			return PTR_ERR(dwmac->clk_mem);
+		}
+	}
+
+	if (of_machine_is_compatible("fsl,imx8mp") ||
+	    of_machine_is_compatible("fsl,imx93")) {
+		/* Binding doc describes the propety:
+		 * is required by i.MX8MP, i.MX93.
+		 * is optinoal for i.MX8DXL.
+		 */
+		dwmac->intf_regmap = syscon_regmap_lookup_by_phandle(np, "intf_mode");
+		if (IS_ERR(dwmac->intf_regmap))
+			return PTR_ERR(dwmac->intf_regmap);
+
+		err = of_property_read_u32_index(np, "intf_mode", 1, &dwmac->intf_reg_off);
+		if (err) {
+			dev_err(dev, "Can't get intf mode reg offset (%d)\n", err);
+			return err;
+		}
+	}
+
+	return err;
+}
+
+static int imx_dwmac_probe(struct platform_device *pdev)
+{
+	struct plat_stmmacenet_data *plat_dat;
+	struct stmmac_resources stmmac_res;
+	struct imx_priv_data *dwmac;
+	const struct imx_dwmac_ops *data;
+	int ret;
+
+	ret = stmmac_get_platform_resources(pdev, &stmmac_res);
+	if (ret)
+		return ret;
+
+	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
+	if (!dwmac)
+		return -ENOMEM;
+
+	plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
+	if (IS_ERR(plat_dat))
+		return PTR_ERR(plat_dat);
+
+	data = of_device_get_match_data(&pdev->dev);
+	if (!data) {
+		dev_err(&pdev->dev, "failed to get match data\n");
+		ret = -EINVAL;
+		goto err_match_data;
+	}
+
+	dwmac->ops = data;
+	dwmac->dev = &pdev->dev;
+
+	ret = imx_dwmac_parse_dt(dwmac, &pdev->dev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to parse OF data\n");
+		goto err_parse_dt;
+	}
+
+	plat_dat->addr64 = dwmac->ops->addr_width;
+	plat_dat->init = imx_dwmac_init;
+	plat_dat->exit = imx_dwmac_exit;
+	plat_dat->clks_config = imx_dwmac_clks_config;
+	plat_dat->fix_mac_speed = imx_dwmac_fix_speed;
+	plat_dat->bsp_priv = dwmac;
+	dwmac->plat_dat = plat_dat;
+
+	ret = imx_dwmac_clks_config(dwmac, true);
+	if (ret)
+		goto err_clks_config;
+
+	ret = imx_dwmac_init(pdev, dwmac);
+	if (ret)
+		goto err_dwmac_init;
+
+	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+	if (ret)
+		goto err_drv_probe;
+
+	return 0;
+
+err_drv_probe:
+	imx_dwmac_exit(pdev, plat_dat->bsp_priv);
+err_dwmac_init:
+	imx_dwmac_clks_config(dwmac, false);
+err_clks_config:
+err_parse_dt:
+err_match_data:
+	stmmac_remove_config_dt(pdev, plat_dat);
+	return ret;
+}
+
+static struct imx_dwmac_ops imx8mp_dwmac_data = {
+	.addr_width = 34,
+	.mac_rgmii_txclk_auto_adj = false,
+	.set_intf_mode = imx8mp_set_intf_mode,
+};
+
+static struct imx_dwmac_ops imx8dxl_dwmac_data = {
+	.addr_width = 32,
+	.mac_rgmii_txclk_auto_adj = true,
+	.set_intf_mode = imx8dxl_set_intf_mode,
+};
+
+static struct imx_dwmac_ops imx93_dwmac_data = {
+	.addr_width = 32,
+	.mac_rgmii_txclk_auto_adj = true,
+	.set_intf_mode = imx93_set_intf_mode,
+};
+
+static const struct of_device_id imx_dwmac_match[] = {
+	{ .compatible = "nxp,imx8mp-dwmac-eqos", .data = &imx8mp_dwmac_data },
+	{ .compatible = "nxp,imx8dxl-dwmac-eqos", .data = &imx8dxl_dwmac_data },
+	{ .compatible = "nxp,imx93-dwmac-eqos", .data = &imx93_dwmac_data },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, imx_dwmac_match);
+
+static struct platform_driver imx_dwmac_driver = {
+	.probe  = imx_dwmac_probe,
+	.remove = stmmac_pltfr_remove,
+	.driver = {
+		.name           = "imx-dwmac",
+		.pm		= &stmmac_pltfr_pm_ops,
+		.of_match_table = imx_dwmac_match,
+	},
+};
+module_platform_driver(imx_dwmac_driver);
+
+MODULE_AUTHOR("NXP");
+MODULE_DESCRIPTION("NXP imx8 DWMAC Specific Glue layer");
+MODULE_LICENSE("GPL v2");