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, 366 insertions, 0 deletions

diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
new file mode 100644
index 000000000..a3098fea3
--- /dev/null
+++ b/drivers/misc/tifm_core.c
@@ -0,0 +1,366 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  tifm_core.c - TI FlashMedia driver
+ *
+ *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
+ */
+
+#include <linux/tifm.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/idr.h>
+#include <linux/module.h>
+
+#define DRIVER_NAME "tifm_core"
+#define DRIVER_VERSION "0.8"
+
+static struct workqueue_struct *workqueue;
+static DEFINE_IDR(tifm_adapter_idr);
+static DEFINE_SPINLOCK(tifm_adapter_lock);
+
+static const char *tifm_media_type_name(unsigned char type, unsigned char nt)
+{
+	const char *card_type_name[3][3] = {
+		{ "SmartMedia/xD", "MemoryStick", "MMC/SD" },
+		{ "XD", "MS", "SD"},
+		{ "xd", "ms", "sd"}
+	};
+
+	if (nt > 2 || type < 1 || type > 3)
+		return NULL;
+	return card_type_name[nt][type - 1];
+}
+
+static int tifm_dev_match(struct tifm_dev *sock, struct tifm_device_id *id)
+{
+	if (sock->type == id->type)
+		return 1;
+	return 0;
+}
+
+static int tifm_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *fm_drv = container_of(drv, struct tifm_driver,
+						  driver);
+	struct tifm_device_id *ids = fm_drv->id_table;
+
+	if (ids) {
+		while (ids->type) {
+			if (tifm_dev_match(sock, ids))
+				return 1;
+			++ids;
+		}
+	}
+	return 0;
+}
+
+static int tifm_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+
+	if (add_uevent_var(env, "TIFM_CARD_TYPE=%s", tifm_media_type_name(sock->type, 1)))
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int tifm_device_probe(struct device *dev)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+					       driver);
+	int rc = -ENODEV;
+
+	get_device(dev);
+	if (dev->driver && drv->probe) {
+		rc = drv->probe(sock);
+		if (!rc)
+			return 0;
+	}
+	put_device(dev);
+	return rc;
+}
+
+static void tifm_dummy_event(struct tifm_dev *sock)
+{
+	return;
+}
+
+static void tifm_device_remove(struct device *dev)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+					       driver);
+
+	if (dev->driver && drv->remove) {
+		sock->card_event = tifm_dummy_event;
+		sock->data_event = tifm_dummy_event;
+		drv->remove(sock);
+		sock->dev.driver = NULL;
+	}
+
+	put_device(dev);
+}
+
+#ifdef CONFIG_PM
+
+static int tifm_device_suspend(struct device *dev, pm_message_t state)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+					       driver);
+
+	if (dev->driver && drv->suspend)
+		return drv->suspend(sock, state);
+	return 0;
+}
+
+static int tifm_device_resume(struct device *dev)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+					       driver);
+
+	if (dev->driver && drv->resume)
+		return drv->resume(sock);
+	return 0;
+}
+
+#else
+
+#define tifm_device_suspend NULL
+#define tifm_device_resume NULL
+
+#endif /* CONFIG_PM */
+
+static ssize_t type_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	return sprintf(buf, "%x", sock->type);
+}
+static DEVICE_ATTR_RO(type);
+
+static struct attribute *tifm_dev_attrs[] = {
+	&dev_attr_type.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(tifm_dev);
+
+static struct bus_type tifm_bus_type = {
+	.name      = "tifm",
+	.dev_groups = tifm_dev_groups,
+	.match     = tifm_bus_match,
+	.uevent    = tifm_uevent,
+	.probe     = tifm_device_probe,
+	.remove    = tifm_device_remove,
+	.suspend   = tifm_device_suspend,
+	.resume    = tifm_device_resume
+};
+
+static void tifm_free(struct device *dev)
+{
+	struct tifm_adapter *fm = container_of(dev, struct tifm_adapter, dev);
+
+	kfree(fm);
+}
+
+static struct class tifm_adapter_class = {
+	.name    = "tifm_adapter",
+	.dev_release = tifm_free
+};
+
+struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
+					struct device *dev)
+{
+	struct tifm_adapter *fm;
+
+	fm = kzalloc(struct_size(fm, sockets, num_sockets), GFP_KERNEL);
+	if (fm) {
+		fm->dev.class = &tifm_adapter_class;
+		fm->dev.parent = dev;
+		device_initialize(&fm->dev);
+		spin_lock_init(&fm->lock);
+		fm->num_sockets = num_sockets;
+	}
+	return fm;
+}
+EXPORT_SYMBOL(tifm_alloc_adapter);
+
+int tifm_add_adapter(struct tifm_adapter *fm)
+{
+	int rc;
+
+	idr_preload(GFP_KERNEL);
+	spin_lock(&tifm_adapter_lock);
+	rc = idr_alloc(&tifm_adapter_idr, fm, 0, 0, GFP_NOWAIT);
+	if (rc >= 0)
+		fm->id = rc;
+	spin_unlock(&tifm_adapter_lock);
+	idr_preload_end();
+	if (rc < 0)
+		return rc;
+
+	dev_set_name(&fm->dev, "tifm%u", fm->id);
+	rc = device_add(&fm->dev);
+	if (rc) {
+		spin_lock(&tifm_adapter_lock);
+		idr_remove(&tifm_adapter_idr, fm->id);
+		spin_unlock(&tifm_adapter_lock);
+	}
+
+	return rc;
+}
+EXPORT_SYMBOL(tifm_add_adapter);
+
+void tifm_remove_adapter(struct tifm_adapter *fm)
+{
+	unsigned int cnt;
+
+	flush_workqueue(workqueue);
+	for (cnt = 0; cnt < fm->num_sockets; ++cnt) {
+		if (fm->sockets[cnt])
+			device_unregister(&fm->sockets[cnt]->dev);
+	}
+
+	spin_lock(&tifm_adapter_lock);
+	idr_remove(&tifm_adapter_idr, fm->id);
+	spin_unlock(&tifm_adapter_lock);
+	device_del(&fm->dev);
+}
+EXPORT_SYMBOL(tifm_remove_adapter);
+
+void tifm_free_adapter(struct tifm_adapter *fm)
+{
+	put_device(&fm->dev);
+}
+EXPORT_SYMBOL(tifm_free_adapter);
+
+void tifm_free_device(struct device *dev)
+{
+	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+	kfree(sock);
+}
+EXPORT_SYMBOL(tifm_free_device);
+
+struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
+				   unsigned char type)
+{
+	struct tifm_dev *sock = NULL;
+
+	if (!tifm_media_type_name(type, 0))
+		return sock;
+
+	sock = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
+	if (sock) {
+		spin_lock_init(&sock->lock);
+		sock->type = type;
+		sock->socket_id = id;
+		sock->card_event = tifm_dummy_event;
+		sock->data_event = tifm_dummy_event;
+
+		sock->dev.parent = fm->dev.parent;
+		sock->dev.bus = &tifm_bus_type;
+		sock->dev.dma_mask = fm->dev.parent->dma_mask;
+		sock->dev.release = tifm_free_device;
+
+		dev_set_name(&sock->dev, "tifm_%s%u:%u",
+			     tifm_media_type_name(type, 2), fm->id, id);
+		printk(KERN_INFO DRIVER_NAME
+		       ": %s card detected in socket %u:%u\n",
+		       tifm_media_type_name(type, 0), fm->id, id);
+	}
+	return sock;
+}
+EXPORT_SYMBOL(tifm_alloc_device);
+
+void tifm_eject(struct tifm_dev *sock)
+{
+	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
+	fm->eject(fm, sock);
+}
+EXPORT_SYMBOL(tifm_eject);
+
+int tifm_has_ms_pif(struct tifm_dev *sock)
+{
+	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
+	return fm->has_ms_pif(fm, sock);
+}
+EXPORT_SYMBOL(tifm_has_ms_pif);
+
+int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
+		int direction)
+{
+	return dma_map_sg(&to_pci_dev(sock->dev.parent)->dev, sg, nents,
+			  direction);
+}
+EXPORT_SYMBOL(tifm_map_sg);
+
+void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
+		   int direction)
+{
+	dma_unmap_sg(&to_pci_dev(sock->dev.parent)->dev, sg, nents, direction);
+}
+EXPORT_SYMBOL(tifm_unmap_sg);
+
+void tifm_queue_work(struct work_struct *work)
+{
+	queue_work(workqueue, work);
+}
+EXPORT_SYMBOL(tifm_queue_work);
+
+int tifm_register_driver(struct tifm_driver *drv)
+{
+	drv->driver.bus = &tifm_bus_type;
+
+	return driver_register(&drv->driver);
+}
+EXPORT_SYMBOL(tifm_register_driver);
+
+void tifm_unregister_driver(struct tifm_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL(tifm_unregister_driver);
+
+static int __init tifm_init(void)
+{
+	int rc;
+
+	workqueue = create_freezable_workqueue("tifm");
+	if (!workqueue)
+		return -ENOMEM;
+
+	rc = bus_register(&tifm_bus_type);
+
+	if (rc)
+		goto err_out_wq;
+
+	rc = class_register(&tifm_adapter_class);
+	if (!rc)
+		return 0;
+
+	bus_unregister(&tifm_bus_type);
+
+err_out_wq:
+	destroy_workqueue(workqueue);
+
+	return rc;
+}
+
+static void __exit tifm_exit(void)
+{
+	class_unregister(&tifm_adapter_class);
+	bus_unregister(&tifm_bus_type);
+	destroy_workqueue(workqueue);
+}
+
+subsys_initcall(tifm_init);
+module_exit(tifm_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alex Dubov");
+MODULE_DESCRIPTION("TI FlashMedia core driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRIVER_VERSION);