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, 356 insertions, 0 deletions

diff --git a/drivers/tty/ipwireless/main.c b/drivers/tty/ipwireless/main.c
new file mode 100644
index 000000000..4c18bbfe1
--- /dev/null
+++ b/drivers/tty/ipwireless/main.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#include "hardware.h"
+#include "network.h"
+#include "main.h"
+#include "tty.h"
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <pcmcia/cisreg.h>
+#include <pcmcia/device_id.h>
+#include <pcmcia/ss.h>
+#include <pcmcia/ds.h>
+
+static const struct pcmcia_device_id ipw_ids[] = {
+	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
+	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
+	PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
+
+static void ipwireless_detach(struct pcmcia_device *link);
+
+/*
+ * Module params
+ */
+/* Debug mode: more verbose, print sent/recv bytes */
+int ipwireless_debug;
+int ipwireless_loopback;
+int ipwireless_out_queue = 10;
+
+module_param_named(debug, ipwireless_debug, int, 0);
+module_param_named(loopback, ipwireless_loopback, int, 0);
+module_param_named(out_queue, ipwireless_out_queue, int, 0);
+MODULE_PARM_DESC(debug, "switch on debug messages [0]");
+MODULE_PARM_DESC(loopback,
+		"debug: enable ras_raw channel [0]");
+MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
+
+/* Executes in process context. */
+static void signalled_reboot_work(struct work_struct *work_reboot)
+{
+	struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
+			work_reboot);
+	struct pcmcia_device *link = ipw->link;
+	pcmcia_reset_card(link->socket);
+}
+
+static void signalled_reboot_callback(void *callback_data)
+{
+	struct ipw_dev *ipw = (struct ipw_dev *) callback_data;
+
+	/* Delegate to process context. */
+	schedule_work(&ipw->work_reboot);
+}
+
+static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
+{
+	struct ipw_dev *ipw = priv_data;
+	int ret;
+
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
+
+	/* 0x40 causes it to generate level mode interrupts. */
+	/* 0x04 enables IREQ pin. */
+	p_dev->config_index |= 0x44;
+	p_dev->io_lines = 16;
+	ret = pcmcia_request_io(p_dev);
+	if (ret)
+		return ret;
+
+	if (!request_region(p_dev->resource[0]->start,
+			    resource_size(p_dev->resource[0]),
+			    IPWIRELESS_PCCARD_NAME)) {
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	p_dev->resource[2]->flags |=
+		WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
+
+	ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
+	if (ret != 0)
+		goto exit1;
+
+	ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
+	if (ret != 0)
+		goto exit1;
+
+	ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
+
+	ipw->common_memory = ioremap(p_dev->resource[2]->start,
+				resource_size(p_dev->resource[2]));
+	if (!ipw->common_memory) {
+		ret = -ENOMEM;
+		goto exit1;
+	}
+	if (!request_mem_region(p_dev->resource[2]->start,
+				resource_size(p_dev->resource[2]),
+				IPWIRELESS_PCCARD_NAME)) {
+		ret = -EBUSY;
+		goto exit2;
+	}
+
+	p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
+					WIN_ENABLE;
+	p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
+	ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
+	if (ret != 0)
+		goto exit3;
+
+	ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
+	if (ret != 0)
+		goto exit3;
+
+	ipw->attr_memory = ioremap(p_dev->resource[3]->start,
+				resource_size(p_dev->resource[3]));
+	if (!ipw->attr_memory) {
+		ret = -ENOMEM;
+		goto exit3;
+	}
+	if (!request_mem_region(p_dev->resource[3]->start,
+				resource_size(p_dev->resource[3]),
+				IPWIRELESS_PCCARD_NAME)) {
+		ret = -EBUSY;
+		goto exit4;
+	}
+
+	return 0;
+
+exit4:
+	iounmap(ipw->attr_memory);
+exit3:
+	release_mem_region(p_dev->resource[2]->start,
+			resource_size(p_dev->resource[2]));
+exit2:
+	iounmap(ipw->common_memory);
+exit1:
+	release_region(p_dev->resource[0]->start,
+		       resource_size(p_dev->resource[0]));
+exit:
+	pcmcia_disable_device(p_dev);
+	return ret;
+}
+
+static int config_ipwireless(struct ipw_dev *ipw)
+{
+	struct pcmcia_device *link = ipw->link;
+	int ret = 0;
+
+	ipw->is_v2_card = 0;
+	link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
+		CONF_ENABLE_IRQ;
+
+	ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
+	if (ret != 0)
+		return ret;
+
+	INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
+
+	ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
+				    ipw->attr_memory, ipw->common_memory,
+				    ipw->is_v2_card, signalled_reboot_callback,
+				    ipw);
+
+	ret = pcmcia_request_irq(link, ipwireless_interrupt);
+	if (ret != 0)
+		goto exit;
+
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
+			ipw->is_v2_card ? "V2/V3" : "V1");
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
+		": I/O ports %pR, irq %d\n", link->resource[0],
+			(unsigned int) link->irq);
+	if (ipw->attr_memory && ipw->common_memory)
+		printk(KERN_INFO IPWIRELESS_PCCARD_NAME
+			": attr memory %pR, common memory %pR\n",
+			link->resource[3],
+			link->resource[2]);
+
+	ipw->network = ipwireless_network_create(ipw->hardware);
+	if (!ipw->network)
+		goto exit;
+
+	ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
+	if (!ipw->tty)
+		goto exit;
+
+	ipwireless_init_hardware_v2_v3(ipw->hardware);
+
+	/*
+	 * Do the RequestConfiguration last, because it enables interrupts.
+	 * Then we don't get any interrupts before we're ready for them.
+	 */
+	ret = pcmcia_enable_device(link);
+	if (ret != 0)
+		goto exit;
+
+	return 0;
+
+exit:
+	if (ipw->common_memory) {
+		release_mem_region(link->resource[2]->start,
+				resource_size(link->resource[2]));
+		iounmap(ipw->common_memory);
+	}
+	if (ipw->attr_memory) {
+		release_mem_region(link->resource[3]->start,
+				resource_size(link->resource[3]));
+		iounmap(ipw->attr_memory);
+	}
+	pcmcia_disable_device(link);
+	return -1;
+}
+
+static void release_ipwireless(struct ipw_dev *ipw)
+{
+	release_region(ipw->link->resource[0]->start,
+		       resource_size(ipw->link->resource[0]));
+	if (ipw->common_memory) {
+		release_mem_region(ipw->link->resource[2]->start,
+				resource_size(ipw->link->resource[2]));
+		iounmap(ipw->common_memory);
+	}
+	if (ipw->attr_memory) {
+		release_mem_region(ipw->link->resource[3]->start,
+				resource_size(ipw->link->resource[3]));
+		iounmap(ipw->attr_memory);
+	}
+	pcmcia_disable_device(ipw->link);
+}
+
+/*
+ * ipwireless_attach() creates an "instance" of the driver, allocating
+ * local data structures for one device (one interface).  The device
+ * is registered with Card Services.
+ *
+ * The pcmcia_device structure is initialized, but we don't actually
+ * configure the card at this point -- we wait until we receive a
+ * card insertion event.
+ */
+static int ipwireless_attach(struct pcmcia_device *link)
+{
+	struct ipw_dev *ipw;
+	int ret;
+
+	ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
+	if (!ipw)
+		return -ENOMEM;
+
+	ipw->link = link;
+	link->priv = ipw;
+
+	ipw->hardware = ipwireless_hardware_create();
+	if (!ipw->hardware) {
+		kfree(ipw);
+		return -ENOMEM;
+	}
+	/* RegisterClient will call config_ipwireless */
+
+	ret = config_ipwireless(ipw);
+
+	if (ret != 0) {
+		ipwireless_detach(link);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * This deletes a driver "instance".  The device is de-registered with
+ * Card Services.  If it has been released, all local data structures
+ * are freed.  Otherwise, the structures will be freed when the device
+ * is released.
+ */
+static void ipwireless_detach(struct pcmcia_device *link)
+{
+	struct ipw_dev *ipw = link->priv;
+
+	release_ipwireless(ipw);
+
+	if (ipw->tty != NULL)
+		ipwireless_tty_free(ipw->tty);
+	if (ipw->network != NULL)
+		ipwireless_network_free(ipw->network);
+	if (ipw->hardware != NULL)
+		ipwireless_hardware_free(ipw->hardware);
+	kfree(ipw);
+}
+
+static struct pcmcia_driver me = {
+	.owner		= THIS_MODULE,
+	.probe          = ipwireless_attach,
+	.remove         = ipwireless_detach,
+	.name		= IPWIRELESS_PCCARD_NAME,
+	.id_table       = ipw_ids
+};
+
+/*
+ * Module insertion : initialisation of the module.
+ * Register the card with cardmgr...
+ */
+static int __init init_ipwireless(void)
+{
+	int ret;
+
+	ret = ipwireless_tty_init();
+	if (ret != 0)
+		return ret;
+
+	ret = pcmcia_register_driver(&me);
+	if (ret != 0)
+		ipwireless_tty_release();
+
+	return ret;
+}
+
+/*
+ * Module removal
+ */
+static void __exit exit_ipwireless(void)
+{
+	pcmcia_unregister_driver(&me);
+	ipwireless_tty_release();
+}
+
+module_init(init_ipwireless);
+module_exit(exit_ipwireless);
+
+MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
+MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
+MODULE_LICENSE("GPL");