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, 310 insertions, 0 deletions

diff --git a/drivers/cpufreq/qoriq-cpufreq.c b/drivers/cpufreq/qoriq-cpufreq.c
new file mode 100644
index 000000000..573b417e1
--- /dev/null
+++ b/drivers/cpufreq/qoriq-cpufreq.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * CPU Frequency Scaling driver for Freescale QorIQ SoCs.
+ */
+
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/cpufreq.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+#include <linux/platform_device.h>
+
+/**
+ * struct cpu_data
+ * @pclk: the parent clock of cpu
+ * @table: frequency table
+ */
+struct cpu_data {
+	struct clk **pclk;
+	struct cpufreq_frequency_table *table;
+};
+
+/**
+ * struct soc_data - SoC specific data
+ * @flags: SOC_xxx
+ */
+struct soc_data {
+	u32 flags;
+};
+
+static u32 get_bus_freq(void)
+{
+	struct device_node *soc;
+	u32 sysfreq;
+	struct clk *pltclk;
+	int ret;
+
+	/* get platform freq by searching bus-frequency property */
+	soc = of_find_node_by_type(NULL, "soc");
+	if (soc) {
+		ret = of_property_read_u32(soc, "bus-frequency", &sysfreq);
+		of_node_put(soc);
+		if (!ret)
+			return sysfreq;
+	}
+
+	/* get platform freq by its clock name */
+	pltclk = clk_get(NULL, "cg-pll0-div1");
+	if (IS_ERR(pltclk)) {
+		pr_err("%s: can't get bus frequency %ld\n",
+		       __func__, PTR_ERR(pltclk));
+		return PTR_ERR(pltclk);
+	}
+
+	return clk_get_rate(pltclk);
+}
+
+static struct clk *cpu_to_clk(int cpu)
+{
+	struct device_node *np;
+	struct clk *clk;
+
+	if (!cpu_present(cpu))
+		return NULL;
+
+	np = of_get_cpu_node(cpu, NULL);
+	if (!np)
+		return NULL;
+
+	clk = of_clk_get(np, 0);
+	of_node_put(np);
+	return clk;
+}
+
+/* traverse cpu nodes to get cpu mask of sharing clock wire */
+static void set_affected_cpus(struct cpufreq_policy *policy)
+{
+	struct cpumask *dstp = policy->cpus;
+	struct clk *clk;
+	int i;
+
+	for_each_present_cpu(i) {
+		clk = cpu_to_clk(i);
+		if (IS_ERR(clk)) {
+			pr_err("%s: no clock for cpu %d\n", __func__, i);
+			continue;
+		}
+
+		if (clk_is_match(policy->clk, clk))
+			cpumask_set_cpu(i, dstp);
+	}
+}
+
+/* reduce the duplicated frequencies in frequency table */
+static void freq_table_redup(struct cpufreq_frequency_table *freq_table,
+		int count)
+{
+	int i, j;
+
+	for (i = 1; i < count; i++) {
+		for (j = 0; j < i; j++) {
+			if (freq_table[j].frequency == CPUFREQ_ENTRY_INVALID ||
+					freq_table[j].frequency !=
+					freq_table[i].frequency)
+				continue;
+
+			freq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+			break;
+		}
+	}
+}
+
+/* sort the frequencies in frequency table in descenting order */
+static void freq_table_sort(struct cpufreq_frequency_table *freq_table,
+		int count)
+{
+	int i, j, ind;
+	unsigned int freq, max_freq;
+	struct cpufreq_frequency_table table;
+
+	for (i = 0; i < count - 1; i++) {
+		max_freq = freq_table[i].frequency;
+		ind = i;
+		for (j = i + 1; j < count; j++) {
+			freq = freq_table[j].frequency;
+			if (freq == CPUFREQ_ENTRY_INVALID ||
+					freq <= max_freq)
+				continue;
+			ind = j;
+			max_freq = freq;
+		}
+
+		if (ind != i) {
+			/* exchange the frequencies */
+			table.driver_data = freq_table[i].driver_data;
+			table.frequency = freq_table[i].frequency;
+			freq_table[i].driver_data = freq_table[ind].driver_data;
+			freq_table[i].frequency = freq_table[ind].frequency;
+			freq_table[ind].driver_data = table.driver_data;
+			freq_table[ind].frequency = table.frequency;
+		}
+	}
+}
+
+static int qoriq_cpufreq_cpu_init(struct cpufreq_policy *policy)
+{
+	struct device_node *np;
+	int i, count;
+	u32 freq;
+	struct clk *clk;
+	const struct clk_hw *hwclk;
+	struct cpufreq_frequency_table *table;
+	struct cpu_data *data;
+	unsigned int cpu = policy->cpu;
+	u64 u64temp;
+
+	np = of_get_cpu_node(cpu, NULL);
+	if (!np)
+		return -ENODEV;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		goto err_np;
+
+	policy->clk = of_clk_get(np, 0);
+	if (IS_ERR(policy->clk)) {
+		pr_err("%s: no clock information\n", __func__);
+		goto err_nomem2;
+	}
+
+	hwclk = __clk_get_hw(policy->clk);
+	count = clk_hw_get_num_parents(hwclk);
+
+	data->pclk = kcalloc(count, sizeof(struct clk *), GFP_KERNEL);
+	if (!data->pclk)
+		goto err_nomem2;
+
+	table = kcalloc(count + 1, sizeof(*table), GFP_KERNEL);
+	if (!table)
+		goto err_pclk;
+
+	for (i = 0; i < count; i++) {
+		clk = clk_hw_get_parent_by_index(hwclk, i)->clk;
+		data->pclk[i] = clk;
+		freq = clk_get_rate(clk);
+		table[i].frequency = freq / 1000;
+		table[i].driver_data = i;
+	}
+	freq_table_redup(table, count);
+	freq_table_sort(table, count);
+	table[i].frequency = CPUFREQ_TABLE_END;
+	policy->freq_table = table;
+	data->table = table;
+
+	/* update ->cpus if we have cluster, no harm if not */
+	set_affected_cpus(policy);
+	policy->driver_data = data;
+
+	/* Minimum transition latency is 12 platform clocks */
+	u64temp = 12ULL * NSEC_PER_SEC;
+	do_div(u64temp, get_bus_freq());
+	policy->cpuinfo.transition_latency = u64temp + 1;
+
+	of_node_put(np);
+
+	return 0;
+
+err_pclk:
+	kfree(data->pclk);
+err_nomem2:
+	kfree(data);
+err_np:
+	of_node_put(np);
+
+	return -ENODEV;
+}
+
+static int qoriq_cpufreq_cpu_exit(struct cpufreq_policy *policy)
+{
+	struct cpu_data *data = policy->driver_data;
+
+	kfree(data->pclk);
+	kfree(data->table);
+	kfree(data);
+	policy->driver_data = NULL;
+
+	return 0;
+}
+
+static int qoriq_cpufreq_target(struct cpufreq_policy *policy,
+		unsigned int index)
+{
+	struct clk *parent;
+	struct cpu_data *data = policy->driver_data;
+
+	parent = data->pclk[data->table[index].driver_data];
+	return clk_set_parent(policy->clk, parent);
+}
+
+static struct cpufreq_driver qoriq_cpufreq_driver = {
+	.name		= "qoriq_cpufreq",
+	.flags		= CPUFREQ_CONST_LOOPS |
+			  CPUFREQ_IS_COOLING_DEV,
+	.init		= qoriq_cpufreq_cpu_init,
+	.exit		= qoriq_cpufreq_cpu_exit,
+	.verify		= cpufreq_generic_frequency_table_verify,
+	.target_index	= qoriq_cpufreq_target,
+	.get		= cpufreq_generic_get,
+	.attr		= cpufreq_generic_attr,
+};
+
+static const struct of_device_id qoriq_cpufreq_blacklist[] = {
+	/* e6500 cannot use cpufreq due to erratum A-008083 */
+	{ .compatible = "fsl,b4420-clockgen", },
+	{ .compatible = "fsl,b4860-clockgen", },
+	{ .compatible = "fsl,t2080-clockgen", },
+	{ .compatible = "fsl,t4240-clockgen", },
+	{}
+};
+
+static int qoriq_cpufreq_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, qoriq_cpufreq_blacklist);
+	if (np) {
+		of_node_put(np);
+		dev_info(&pdev->dev, "Disabling due to erratum A-008083");
+		return -ENODEV;
+	}
+
+	ret = cpufreq_register_driver(&qoriq_cpufreq_driver);
+	if (ret)
+		return ret;
+
+	dev_info(&pdev->dev, "Freescale QorIQ CPU frequency scaling driver\n");
+	return 0;
+}
+
+static int qoriq_cpufreq_remove(struct platform_device *pdev)
+{
+	cpufreq_unregister_driver(&qoriq_cpufreq_driver);
+
+	return 0;
+}
+
+static struct platform_driver qoriq_cpufreq_platform_driver = {
+	.driver = {
+		.name = "qoriq-cpufreq",
+	},
+	.probe = qoriq_cpufreq_probe,
+	.remove = qoriq_cpufreq_remove,
+};
+module_platform_driver(qoriq_cpufreq_platform_driver);
+
+MODULE_ALIAS("platform:qoriq-cpufreq");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Tang Yuantian <Yuantian.Tang@freescale.com>");
+MODULE_DESCRIPTION("cpufreq driver for Freescale QorIQ series SoCs");