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, 342 insertions, 0 deletions

diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c
new file mode 100644
index 000000000..e23b60618
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman_portal.c
@@ -0,0 +1,342 @@
+/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *	 notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *	 notice, this list of conditions and the following disclaimer in the
+ *	 documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *	 names of its contributors may be used to endorse or promote products
+ *	 derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "qman_priv.h"
+
+struct qman_portal *qman_dma_portal;
+EXPORT_SYMBOL(qman_dma_portal);
+
+/* Enable portal interupts (as opposed to polling mode) */
+#define CONFIG_FSL_DPA_PIRQ_SLOW  1
+#define CONFIG_FSL_DPA_PIRQ_FAST  1
+
+static struct cpumask portal_cpus;
+static int __qman_portals_probed;
+/* protect qman global registers and global data shared among portals */
+static DEFINE_SPINLOCK(qman_lock);
+
+static void portal_set_cpu(struct qm_portal_config *pcfg, int cpu)
+{
+#ifdef CONFIG_FSL_PAMU
+	struct device *dev = pcfg->dev;
+	int ret;
+
+	pcfg->iommu_domain = iommu_domain_alloc(&platform_bus_type);
+	if (!pcfg->iommu_domain) {
+		dev_err(dev, "%s(): iommu_domain_alloc() failed", __func__);
+		goto no_iommu;
+	}
+	ret = fsl_pamu_configure_l1_stash(pcfg->iommu_domain, cpu);
+	if (ret < 0) {
+		dev_err(dev, "%s(): fsl_pamu_configure_l1_stash() = %d",
+			__func__, ret);
+		goto out_domain_free;
+	}
+	ret = iommu_attach_device(pcfg->iommu_domain, dev);
+	if (ret < 0) {
+		dev_err(dev, "%s(): iommu_device_attach() = %d", __func__,
+			ret);
+		goto out_domain_free;
+	}
+
+no_iommu:
+#endif
+	qman_set_sdest(pcfg->channel, cpu);
+
+	return;
+
+#ifdef CONFIG_FSL_PAMU
+out_domain_free:
+	iommu_domain_free(pcfg->iommu_domain);
+	pcfg->iommu_domain = NULL;
+#endif
+}
+
+static struct qman_portal *init_pcfg(struct qm_portal_config *pcfg)
+{
+	struct qman_portal *p;
+	u32 irq_sources = 0;
+
+	/* We need the same LIODN offset for all portals */
+	qman_liodn_fixup(pcfg->channel);
+
+	pcfg->iommu_domain = NULL;
+	portal_set_cpu(pcfg, pcfg->cpu);
+
+	p = qman_create_affine_portal(pcfg, NULL);
+	if (!p) {
+		dev_crit(pcfg->dev, "%s: Portal failure on cpu %d\n",
+			 __func__, pcfg->cpu);
+		return NULL;
+	}
+
+	/* Determine what should be interrupt-vs-poll driven */
+#ifdef CONFIG_FSL_DPA_PIRQ_SLOW
+	irq_sources |= QM_PIRQ_EQCI | QM_PIRQ_EQRI | QM_PIRQ_MRI |
+		       QM_PIRQ_CSCI;
+#endif
+#ifdef CONFIG_FSL_DPA_PIRQ_FAST
+	irq_sources |= QM_PIRQ_DQRI;
+#endif
+	qman_p_irqsource_add(p, irq_sources);
+
+	spin_lock(&qman_lock);
+	if (cpumask_equal(&portal_cpus, cpu_possible_mask)) {
+		/* all assigned portals are initialized now */
+		qman_init_cgr_all();
+	}
+
+	if (!qman_dma_portal)
+		qman_dma_portal = p;
+
+	spin_unlock(&qman_lock);
+
+	dev_info(pcfg->dev, "Portal initialised, cpu %d\n", pcfg->cpu);
+
+	return p;
+}
+
+static void qman_portal_update_sdest(const struct qm_portal_config *pcfg,
+							unsigned int cpu)
+{
+#ifdef CONFIG_FSL_PAMU /* TODO */
+	if (pcfg->iommu_domain) {
+		if (fsl_pamu_configure_l1_stash(pcfg->iommu_domain, cpu) < 0) {
+			dev_err(pcfg->dev,
+				"Failed to update pamu stash setting\n");
+			return;
+		}
+	}
+#endif
+	qman_set_sdest(pcfg->channel, cpu);
+}
+
+static int qman_offline_cpu(unsigned int cpu)
+{
+	struct qman_portal *p;
+	const struct qm_portal_config *pcfg;
+
+	p = affine_portals[cpu];
+	if (p) {
+		pcfg = qman_get_qm_portal_config(p);
+		if (pcfg) {
+			/* select any other online CPU */
+			cpu = cpumask_any_but(cpu_online_mask, cpu);
+			irq_set_affinity(pcfg->irq, cpumask_of(cpu));
+			qman_portal_update_sdest(pcfg, cpu);
+		}
+	}
+	return 0;
+}
+
+static int qman_online_cpu(unsigned int cpu)
+{
+	struct qman_portal *p;
+	const struct qm_portal_config *pcfg;
+
+	p = affine_portals[cpu];
+	if (p) {
+		pcfg = qman_get_qm_portal_config(p);
+		if (pcfg) {
+			irq_set_affinity(pcfg->irq, cpumask_of(cpu));
+			qman_portal_update_sdest(pcfg, cpu);
+		}
+	}
+	return 0;
+}
+
+int qman_portals_probed(void)
+{
+	return __qman_portals_probed;
+}
+EXPORT_SYMBOL_GPL(qman_portals_probed);
+
+static int qman_portal_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct qm_portal_config *pcfg;
+	struct resource *addr_phys[2];
+	int irq, cpu, err, i;
+	u32 val;
+
+	err = qman_is_probed();
+	if (!err)
+		return -EPROBE_DEFER;
+	if (err < 0) {
+		dev_err(&pdev->dev, "failing probe due to qman probe error\n");
+		return -ENODEV;
+	}
+
+	pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
+	if (!pcfg) {
+		__qman_portals_probed = -1;
+		return -ENOMEM;
+	}
+
+	pcfg->dev = dev;
+
+	addr_phys[0] = platform_get_resource(pdev, IORESOURCE_MEM,
+					     DPAA_PORTAL_CE);
+	if (!addr_phys[0]) {
+		dev_err(dev, "Can't get %pOF property 'reg::CE'\n", node);
+		goto err_ioremap1;
+	}
+
+	addr_phys[1] = platform_get_resource(pdev, IORESOURCE_MEM,
+					     DPAA_PORTAL_CI);
+	if (!addr_phys[1]) {
+		dev_err(dev, "Can't get %pOF property 'reg::CI'\n", node);
+		goto err_ioremap1;
+	}
+
+	err = of_property_read_u32(node, "cell-index", &val);
+	if (err) {
+		dev_err(dev, "Can't get %pOF property 'cell-index'\n", node);
+		__qman_portals_probed = -1;
+		return err;
+	}
+	pcfg->channel = val;
+	pcfg->cpu = -1;
+	irq = platform_get_irq(pdev, 0);
+	if (irq <= 0)
+		goto err_ioremap1;
+	pcfg->irq = irq;
+
+	pcfg->addr_virt_ce = memremap(addr_phys[0]->start,
+					resource_size(addr_phys[0]),
+					QBMAN_MEMREMAP_ATTR);
+	if (!pcfg->addr_virt_ce) {
+		dev_err(dev, "memremap::CE failed\n");
+		goto err_ioremap1;
+	}
+
+	pcfg->addr_virt_ci = ioremap(addr_phys[1]->start,
+				resource_size(addr_phys[1]));
+	if (!pcfg->addr_virt_ci) {
+		dev_err(dev, "ioremap::CI failed\n");
+		goto err_ioremap2;
+	}
+
+	pcfg->pools = qm_get_pools_sdqcr();
+
+	spin_lock(&qman_lock);
+	cpu = cpumask_first_zero(&portal_cpus);
+	if (cpu >= nr_cpu_ids) {
+		__qman_portals_probed = 1;
+		/* unassigned portal, skip init */
+		spin_unlock(&qman_lock);
+		goto check_cleanup;
+	}
+
+	cpumask_set_cpu(cpu, &portal_cpus);
+	spin_unlock(&qman_lock);
+	pcfg->cpu = cpu;
+
+	if (dma_set_mask(dev, DMA_BIT_MASK(40))) {
+		dev_err(dev, "dma_set_mask() failed\n");
+		goto err_portal_init;
+	}
+
+	if (!init_pcfg(pcfg)) {
+		dev_err(dev, "portal init failed\n");
+		goto err_portal_init;
+	}
+
+	/* clear irq affinity if assigned cpu is offline */
+	if (!cpu_online(cpu))
+		qman_offline_cpu(cpu);
+
+check_cleanup:
+	if (__qman_portals_probed == 1 && qman_requires_cleanup()) {
+		/*
+		 * QMan wasn't reset prior to boot (Kexec for example)
+		 * Empty all the frame queues so they are in reset state
+		 */
+		for (i = 0; i < qm_get_fqid_maxcnt(); i++) {
+			err =  qman_shutdown_fq(i);
+			if (err) {
+				dev_err(dev, "Failed to shutdown frame queue %d\n",
+					i);
+				goto err_portal_init;
+			}
+		}
+		qman_done_cleanup();
+	}
+
+	return 0;
+
+err_portal_init:
+	iounmap(pcfg->addr_virt_ci);
+err_ioremap2:
+	memunmap(pcfg->addr_virt_ce);
+err_ioremap1:
+	__qman_portals_probed = -1;
+
+	return -ENXIO;
+}
+
+static const struct of_device_id qman_portal_ids[] = {
+	{
+		.compatible = "fsl,qman-portal",
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, qman_portal_ids);
+
+static struct platform_driver qman_portal_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.of_match_table = qman_portal_ids,
+	},
+	.probe = qman_portal_probe,
+};
+
+static int __init qman_portal_driver_register(struct platform_driver *drv)
+{
+	int ret;
+
+	ret = platform_driver_register(drv);
+	if (ret < 0)
+		return ret;
+
+	ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
+					"soc/qman_portal:online",
+					qman_online_cpu, qman_offline_cpu);
+	if (ret < 0) {
+		pr_err("qman: failed to register hotplug callbacks.\n");
+		platform_driver_unregister(drv);
+		return ret;
+	}
+	return 0;
+}
+
+module_driver(qman_portal_driver,
+	      qman_portal_driver_register, platform_driver_unregister);