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, 429 insertions, 0 deletions

diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
new file mode 100644
index 000000000..1765d6e60
--- /dev/null
+++ b/drivers/pnp/manager.c
@@ -0,0 +1,429 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * manager.c - Resource Management, Conflict Resolution, Activation and Disabling of Devices
+ *
+ * based on isapnp.c resource management (c) Jaroslav Kysela <perex@perex.cz>
+ * Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/pnp.h>
+#include <linux/bitmap.h>
+#include <linux/mutex.h>
+#include "base.h"
+
+DEFINE_MUTEX(pnp_res_mutex);
+
+static struct resource *pnp_find_resource(struct pnp_dev *dev,
+					  unsigned char rule,
+					  unsigned long type,
+					  unsigned int bar)
+{
+	struct resource *res = pnp_get_resource(dev, type, bar);
+
+	/* when the resource already exists, set its resource bits from rule */
+	if (res) {
+		res->flags &= ~IORESOURCE_BITS;
+		res->flags |= rule & IORESOURCE_BITS;
+	}
+
+	return res;
+}
+
+static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
+{
+	struct resource *res, local_res;
+
+	res = pnp_find_resource(dev, rule->flags, IORESOURCE_IO, idx);
+	if (res) {
+		pnp_dbg(&dev->dev, "  io %d already set to %#llx-%#llx "
+			"flags %#lx\n", idx, (unsigned long long) res->start,
+			(unsigned long long) res->end, res->flags);
+		return 0;
+	}
+
+	res = &local_res;
+	res->flags = rule->flags | IORESOURCE_AUTO;
+	res->start = 0;
+	res->end = 0;
+
+	if (!rule->size) {
+		res->flags |= IORESOURCE_DISABLED;
+		pnp_dbg(&dev->dev, "  io %d disabled\n", idx);
+		goto __add;
+	}
+
+	res->start = rule->min;
+	res->end = res->start + rule->size - 1;
+
+	while (!pnp_check_port(dev, res)) {
+		res->start += rule->align;
+		res->end = res->start + rule->size - 1;
+		if (res->start > rule->max || !rule->align) {
+			pnp_dbg(&dev->dev, "  couldn't assign io %d "
+				"(min %#llx max %#llx)\n", idx,
+				(unsigned long long) rule->min,
+				(unsigned long long) rule->max);
+			return -EBUSY;
+		}
+	}
+
+__add:
+	pnp_add_io_resource(dev, res->start, res->end, res->flags);
+	return 0;
+}
+
+static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
+{
+	struct resource *res, local_res;
+
+	res = pnp_find_resource(dev, rule->flags, IORESOURCE_MEM, idx);
+	if (res) {
+		pnp_dbg(&dev->dev, "  mem %d already set to %#llx-%#llx "
+			"flags %#lx\n", idx, (unsigned long long) res->start,
+			(unsigned long long) res->end, res->flags);
+		return 0;
+	}
+
+	res = &local_res;
+	res->flags = rule->flags | IORESOURCE_AUTO;
+	res->start = 0;
+	res->end = 0;
+
+	/* ??? rule->flags restricted to 8 bits, all tests bogus ??? */
+	if (!(rule->flags & IORESOURCE_MEM_WRITEABLE))
+		res->flags |= IORESOURCE_READONLY;
+	if (rule->flags & IORESOURCE_MEM_RANGELENGTH)
+		res->flags |= IORESOURCE_RANGELENGTH;
+	if (rule->flags & IORESOURCE_MEM_SHADOWABLE)
+		res->flags |= IORESOURCE_SHADOWABLE;
+
+	if (!rule->size) {
+		res->flags |= IORESOURCE_DISABLED;
+		pnp_dbg(&dev->dev, "  mem %d disabled\n", idx);
+		goto __add;
+	}
+
+	res->start = rule->min;
+	res->end = res->start + rule->size - 1;
+
+	while (!pnp_check_mem(dev, res)) {
+		res->start += rule->align;
+		res->end = res->start + rule->size - 1;
+		if (res->start > rule->max || !rule->align) {
+			pnp_dbg(&dev->dev, "  couldn't assign mem %d "
+				"(min %#llx max %#llx)\n", idx,
+				(unsigned long long) rule->min,
+				(unsigned long long) rule->max);
+			return -EBUSY;
+		}
+	}
+
+__add:
+	pnp_add_mem_resource(dev, res->start, res->end, res->flags);
+	return 0;
+}
+
+static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
+{
+	struct resource *res, local_res;
+	int i;
+
+	/* IRQ priority: this table is good for i386 */
+	static unsigned short xtab[16] = {
+		5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
+	};
+
+	res = pnp_find_resource(dev, rule->flags, IORESOURCE_IRQ, idx);
+	if (res) {
+		pnp_dbg(&dev->dev, "  irq %d already set to %d flags %#lx\n",
+			idx, (int) res->start, res->flags);
+		return 0;
+	}
+
+	res = &local_res;
+	res->flags = rule->flags | IORESOURCE_AUTO;
+	res->start = -1;
+	res->end = -1;
+
+	if (bitmap_empty(rule->map.bits, PNP_IRQ_NR)) {
+		res->flags |= IORESOURCE_DISABLED;
+		pnp_dbg(&dev->dev, "  irq %d disabled\n", idx);
+		goto __add;
+	}
+
+	/* TBD: need check for >16 IRQ */
+	res->start = find_next_bit(rule->map.bits, PNP_IRQ_NR, 16);
+	if (res->start < PNP_IRQ_NR) {
+		res->end = res->start;
+		goto __add;
+	}
+	for (i = 0; i < 16; i++) {
+		if (test_bit(xtab[i], rule->map.bits)) {
+			res->start = res->end = xtab[i];
+			if (pnp_check_irq(dev, res))
+				goto __add;
+		}
+	}
+
+	if (rule->flags & IORESOURCE_IRQ_OPTIONAL) {
+		res->start = -1;
+		res->end = -1;
+		res->flags |= IORESOURCE_DISABLED;
+		pnp_dbg(&dev->dev, "  irq %d disabled (optional)\n", idx);
+		goto __add;
+	}
+
+	pnp_dbg(&dev->dev, "  couldn't assign irq %d\n", idx);
+	return -EBUSY;
+
+__add:
+	pnp_add_irq_resource(dev, res->start, res->flags);
+	return 0;
+}
+
+#ifdef CONFIG_ISA_DMA_API
+static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
+{
+	struct resource *res, local_res;
+	int i;
+
+	/* DMA priority: this table is good for i386 */
+	static unsigned short xtab[8] = {
+		1, 3, 5, 6, 7, 0, 2, 4
+	};
+
+	res = pnp_find_resource(dev, rule->flags, IORESOURCE_DMA, idx);
+	if (res) {
+		pnp_dbg(&dev->dev, "  dma %d already set to %d flags %#lx\n",
+			idx, (int) res->start, res->flags);
+		return 0;
+	}
+
+	res = &local_res;
+	res->flags = rule->flags | IORESOURCE_AUTO;
+	res->start = -1;
+	res->end = -1;
+
+	if (!rule->map) {
+		res->flags |= IORESOURCE_DISABLED;
+		pnp_dbg(&dev->dev, "  dma %d disabled\n", idx);
+		goto __add;
+	}
+
+	for (i = 0; i < 8; i++) {
+		if (rule->map & (1 << xtab[i])) {
+			res->start = res->end = xtab[i];
+			if (pnp_check_dma(dev, res))
+				goto __add;
+		}
+	}
+
+	pnp_dbg(&dev->dev, "  couldn't assign dma %d\n", idx);
+	return -EBUSY;
+
+__add:
+	pnp_add_dma_resource(dev, res->start, res->flags);
+	return 0;
+}
+#endif /* CONFIG_ISA_DMA_API */
+
+void pnp_init_resources(struct pnp_dev *dev)
+{
+	pnp_free_resources(dev);
+}
+
+static void pnp_clean_resource_table(struct pnp_dev *dev)
+{
+	struct pnp_resource *pnp_res, *tmp;
+
+	list_for_each_entry_safe(pnp_res, tmp, &dev->resources, list) {
+		if (pnp_res->res.flags & IORESOURCE_AUTO)
+			pnp_free_resource(pnp_res);
+	}
+}
+
+/**
+ * pnp_assign_resources - assigns resources to the device based on the specified dependent number
+ * @dev: pointer to the desired device
+ * @set: the dependent function number
+ */
+static int pnp_assign_resources(struct pnp_dev *dev, int set)
+{
+	struct pnp_option *option;
+	int nport = 0, nmem = 0, nirq = 0;
+	int ndma __maybe_unused = 0;
+	int ret = 0;
+
+	pnp_dbg(&dev->dev, "pnp_assign_resources, try dependent set %d\n", set);
+	mutex_lock(&pnp_res_mutex);
+	pnp_clean_resource_table(dev);
+
+	list_for_each_entry(option, &dev->options, list) {
+		if (pnp_option_is_dependent(option) &&
+		    pnp_option_set(option) != set)
+				continue;
+
+		switch (option->type) {
+		case IORESOURCE_IO:
+			ret = pnp_assign_port(dev, &option->u.port, nport++);
+			break;
+		case IORESOURCE_MEM:
+			ret = pnp_assign_mem(dev, &option->u.mem, nmem++);
+			break;
+		case IORESOURCE_IRQ:
+			ret = pnp_assign_irq(dev, &option->u.irq, nirq++);
+			break;
+#ifdef CONFIG_ISA_DMA_API
+		case IORESOURCE_DMA:
+			ret = pnp_assign_dma(dev, &option->u.dma, ndma++);
+			break;
+#endif
+		default:
+			ret = -EINVAL;
+			break;
+		}
+		if (ret < 0)
+			break;
+	}
+
+	mutex_unlock(&pnp_res_mutex);
+	if (ret < 0) {
+		pnp_dbg(&dev->dev, "pnp_assign_resources failed (%d)\n", ret);
+		pnp_clean_resource_table(dev);
+	} else
+		dbg_pnp_show_resources(dev, "pnp_assign_resources succeeded");
+	return ret;
+}
+
+/**
+ * pnp_auto_config_dev - automatically assigns resources to a device
+ * @dev: pointer to the desired device
+ */
+int pnp_auto_config_dev(struct pnp_dev *dev)
+{
+	int i, ret;
+
+	if (!pnp_can_configure(dev)) {
+		pnp_dbg(&dev->dev, "configuration not supported\n");
+		return -ENODEV;
+	}
+
+	ret = pnp_assign_resources(dev, 0);
+	if (ret == 0)
+		return 0;
+
+	for (i = 1; i < dev->num_dependent_sets; i++) {
+		ret = pnp_assign_resources(dev, i);
+		if (ret == 0)
+			return 0;
+	}
+
+	dev_err(&dev->dev, "unable to assign resources\n");
+	return ret;
+}
+
+/**
+ * pnp_start_dev - low-level start of the PnP device
+ * @dev: pointer to the desired device
+ *
+ * assumes that resources have already been allocated
+ */
+int pnp_start_dev(struct pnp_dev *dev)
+{
+	if (!pnp_can_write(dev)) {
+		pnp_dbg(&dev->dev, "activation not supported\n");
+		return -EINVAL;
+	}
+
+	dbg_pnp_show_resources(dev, "pnp_start_dev");
+	if (dev->protocol->set(dev) < 0) {
+		dev_err(&dev->dev, "activation failed\n");
+		return -EIO;
+	}
+
+	dev_info(&dev->dev, "activated\n");
+	return 0;
+}
+EXPORT_SYMBOL(pnp_start_dev);
+
+/**
+ * pnp_stop_dev - low-level disable of the PnP device
+ * @dev: pointer to the desired device
+ *
+ * does not free resources
+ */
+int pnp_stop_dev(struct pnp_dev *dev)
+{
+	if (!pnp_can_disable(dev)) {
+		pnp_dbg(&dev->dev, "disabling not supported\n");
+		return -EINVAL;
+	}
+	if (dev->protocol->disable(dev) < 0) {
+		dev_err(&dev->dev, "disable failed\n");
+		return -EIO;
+	}
+
+	dev_info(&dev->dev, "disabled\n");
+	return 0;
+}
+EXPORT_SYMBOL(pnp_stop_dev);
+
+/**
+ * pnp_activate_dev - activates a PnP device for use
+ * @dev: pointer to the desired device
+ *
+ * does not validate or set resources so be careful.
+ */
+int pnp_activate_dev(struct pnp_dev *dev)
+{
+	int error;
+
+	if (dev->active)
+		return 0;
+
+	/* ensure resources are allocated */
+	if (pnp_auto_config_dev(dev))
+		return -EBUSY;
+
+	error = pnp_start_dev(dev);
+	if (error)
+		return error;
+
+	dev->active = 1;
+	return 0;
+}
+EXPORT_SYMBOL(pnp_activate_dev);
+
+/**
+ * pnp_disable_dev - disables device
+ * @dev: pointer to the desired device
+ *
+ * inform the correct pnp protocol so that resources can be used by other devices
+ */
+int pnp_disable_dev(struct pnp_dev *dev)
+{
+	int error;
+
+	if (!dev->active)
+		return 0;
+
+	error = pnp_stop_dev(dev);
+	if (error)
+		return error;
+
+	dev->active = 0;
+
+	/* release the resources so that other devices can use them */
+	mutex_lock(&pnp_res_mutex);
+	pnp_clean_resource_table(dev);
+	mutex_unlock(&pnp_res_mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL(pnp_disable_dev);