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, 341 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
new file mode 100644
index 000000000..86b8cb975
--- /dev/null
+++ b/drivers/net/wireless/ath/ath5k/pci.c
@@ -0,0 +1,341 @@
+/*
+ * Copyright (c) 2008-2009 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/nl80211.h>
+#include <linux/pci.h>
+#include <linux/etherdevice.h>
+#include <linux/module.h>
+#include "../ath.h"
+#include "ath5k.h"
+#include "debug.h"
+#include "base.h"
+#include "reg.h"
+
+/* Known PCI ids */
+static const struct pci_device_id ath5k_pci_id_table[] = {
+	{ PCI_VDEVICE(ATHEROS, 0x0207) }, /* 5210 early */
+	{ PCI_VDEVICE(ATHEROS, 0x0007) }, /* 5210 */
+	{ PCI_VDEVICE(ATHEROS, 0x0011) }, /* 5311 - this is on AHB bus !*/
+	{ PCI_VDEVICE(ATHEROS, 0x0012) }, /* 5211 */
+	{ PCI_VDEVICE(ATHEROS, 0x0013) }, /* 5212 */
+	{ PCI_VDEVICE(3COM_2,  0x0013) }, /* 3com 5212 */
+	{ PCI_VDEVICE(3COM,    0x0013) }, /* 3com 3CRDAG675 5212 */
+	{ PCI_VDEVICE(ATHEROS, 0x1014) }, /* IBM minipci 5212 */
+	{ PCI_VDEVICE(ATHEROS, 0x0014) }, /* 5212 compatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0015) }, /* 5212 compatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0016) }, /* 5212 compatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0017) }, /* 5212 compatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0018) }, /* 5212 compatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0019) }, /* 5212 compatible */
+	{ PCI_VDEVICE(ATHEROS, 0x001a) }, /* 2413 Griffin-lite */
+	{ PCI_VDEVICE(ATHEROS, 0x001b) }, /* 5413 Eagle */
+	{ PCI_VDEVICE(ATHEROS, 0x001c) }, /* PCI-E cards */
+	{ PCI_VDEVICE(ATHEROS, 0x001d) }, /* 2417 Nala */
+	{ PCI_VDEVICE(ATHEROS, 0xff1b) }, /* AR5BXB63 */
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, ath5k_pci_id_table);
+
+/* return bus cachesize in 4B word units */
+static void ath5k_pci_read_cachesize(struct ath_common *common, int *csz)
+{
+	struct ath5k_hw *ah = (struct ath5k_hw *) common->priv;
+	u8 u8tmp;
+
+	pci_read_config_byte(ah->pdev, PCI_CACHE_LINE_SIZE, &u8tmp);
+	*csz = (int)u8tmp;
+
+	/*
+	 * This check was put in to avoid "unpleasant" consequences if
+	 * the bootrom has not fully initialized all PCI devices.
+	 * Sometimes the cache line size register is not set
+	 */
+
+	if (*csz == 0)
+		*csz = L1_CACHE_BYTES >> 2;   /* Use the default size */
+}
+
+/*
+ * Read from eeprom
+ */
+static bool
+ath5k_pci_eeprom_read(struct ath_common *common, u32 offset, u16 *data)
+{
+	struct ath5k_hw *ah = (struct ath5k_hw *) common->ah;
+	u32 status, timeout;
+
+	/*
+	 * Initialize EEPROM access
+	 */
+	if (ah->ah_version == AR5K_AR5210) {
+		AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE);
+		(void)ath5k_hw_reg_read(ah, AR5K_EEPROM_BASE + (4 * offset));
+	} else {
+		ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE);
+		AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD,
+				AR5K_EEPROM_CMD_READ);
+	}
+
+	for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) {
+		status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS);
+		if (status & AR5K_EEPROM_STAT_RDDONE) {
+			if (status & AR5K_EEPROM_STAT_RDERR)
+				return false;
+			*data = (u16)(ath5k_hw_reg_read(ah, AR5K_EEPROM_DATA) &
+					0xffff);
+			return true;
+		}
+		usleep_range(15, 20);
+	}
+
+	return false;
+}
+
+int ath5k_hw_read_srev(struct ath5k_hw *ah)
+{
+	ah->ah_mac_srev = ath5k_hw_reg_read(ah, AR5K_SREV);
+	return 0;
+}
+
+/*
+ * Read the MAC address from eeprom or platform_data
+ */
+static int ath5k_pci_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
+{
+	u8 mac_d[ETH_ALEN] = {};
+	u32 total, offset;
+	u16 data;
+	int octet;
+
+	AR5K_EEPROM_READ(0x20, data);
+
+	for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) {
+		AR5K_EEPROM_READ(offset, data);
+
+		total += data;
+		mac_d[octet + 1] = data & 0xff;
+		mac_d[octet] = data >> 8;
+		octet += 2;
+	}
+
+	if (!total || total == 3 * 0xffff)
+		return -EINVAL;
+
+	memcpy(mac, mac_d, ETH_ALEN);
+
+	return 0;
+}
+
+
+/* Common ath_bus_opts structure */
+static const struct ath_bus_ops ath_pci_bus_ops = {
+	.ath_bus_type = ATH_PCI,
+	.read_cachesize = ath5k_pci_read_cachesize,
+	.eeprom_read = ath5k_pci_eeprom_read,
+	.eeprom_read_mac = ath5k_pci_eeprom_read_mac,
+};
+
+/********************\
+* PCI Initialization *
+\********************/
+
+static int
+ath5k_pci_probe(struct pci_dev *pdev,
+		const struct pci_device_id *id)
+{
+	void __iomem *mem;
+	struct ath5k_hw *ah;
+	struct ieee80211_hw *hw;
+	int ret;
+	u8 csz;
+
+	/*
+	 * L0s needs to be disabled on all ath5k cards.
+	 *
+	 * For distributions shipping with CONFIG_PCIEASPM (this will be enabled
+	 * by default in the future in 2.6.36) this will also mean both L1 and
+	 * L0s will be disabled when a pre 1.1 PCIe device is detected. We do
+	 * know L1 works correctly even for all ath5k pre 1.1 PCIe devices
+	 * though but cannot currently undue the effect of a blacklist, for
+	 * details you can read pcie_aspm_sanity_check() and see how it adjusts
+	 * the device link capability.
+	 *
+	 * It may be possible in the future to implement some PCI API to allow
+	 * drivers to override blacklists for pre 1.1 PCIe but for now it is
+	 * best to accept that both L0s and L1 will be disabled completely for
+	 * distributions shipping with CONFIG_PCIEASPM rather than having this
+	 * issue present. Motivation for adding this new API will be to help
+	 * with power consumption for some of these devices.
+	 */
+	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "can't enable device\n");
+		goto err;
+	}
+
+	/* XXX 32-bit addressing only */
+	ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(&pdev->dev, "32-bit DMA not available\n");
+		goto err_dis;
+	}
+
+	/*
+	 * Cache line size is used to size and align various
+	 * structures used to communicate with the hardware.
+	 */
+	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
+	if (csz == 0) {
+		/*
+		 * Linux 2.4.18 (at least) writes the cache line size
+		 * register as a 16-bit wide register which is wrong.
+		 * We must have this setup properly for rx buffer
+		 * DMA to work so force a reasonable value here if it
+		 * comes up zero.
+		 */
+		csz = L1_CACHE_BYTES >> 2;
+		pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
+	}
+	/*
+	 * The default setting of latency timer yields poor results,
+	 * set it to the value used by other systems.  It may be worth
+	 * tweaking this setting more.
+	 */
+	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);
+
+	/* Enable bus mastering */
+	pci_set_master(pdev);
+
+	/*
+	 * Disable the RETRY_TIMEOUT register (0x41) to keep
+	 * PCI Tx retries from interfering with C3 CPU state.
+	 */
+	pci_write_config_byte(pdev, 0x41, 0);
+
+	ret = pci_request_region(pdev, 0, "ath5k");
+	if (ret) {
+		dev_err(&pdev->dev, "cannot reserve PCI memory region\n");
+		goto err_dis;
+	}
+
+	mem = pci_iomap(pdev, 0, 0);
+	if (!mem) {
+		dev_err(&pdev->dev, "cannot remap PCI memory region\n");
+		ret = -EIO;
+		goto err_reg;
+	}
+
+	/*
+	 * Allocate hw (mac80211 main struct)
+	 * and hw->priv (driver private data)
+	 */
+	hw = ieee80211_alloc_hw(sizeof(*ah), &ath5k_hw_ops);
+	if (hw == NULL) {
+		dev_err(&pdev->dev, "cannot allocate ieee80211_hw\n");
+		ret = -ENOMEM;
+		goto err_map;
+	}
+
+	dev_info(&pdev->dev, "registered as '%s'\n", wiphy_name(hw->wiphy));
+
+	ah = hw->priv;
+	ah->hw = hw;
+	ah->pdev = pdev;
+	ah->dev = &pdev->dev;
+	ah->irq = pdev->irq;
+	ah->devid = id->device;
+	ah->iobase = mem; /* So we can unmap it on detach */
+
+	/* Initialize */
+	ret = ath5k_init_ah(ah, &ath_pci_bus_ops);
+	if (ret)
+		goto err_free;
+
+	/* Set private data */
+	pci_set_drvdata(pdev, hw);
+
+	return 0;
+err_free:
+	ieee80211_free_hw(hw);
+err_map:
+	pci_iounmap(pdev, mem);
+err_reg:
+	pci_release_region(pdev, 0);
+err_dis:
+	pci_disable_device(pdev);
+err:
+	return ret;
+}
+
+static void
+ath5k_pci_remove(struct pci_dev *pdev)
+{
+	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ath5k_hw *ah = hw->priv;
+
+	ath5k_deinit_ah(ah);
+	pci_iounmap(pdev, ah->iobase);
+	pci_release_region(pdev, 0);
+	pci_disable_device(pdev);
+	ieee80211_free_hw(hw);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ath5k_pci_suspend(struct device *dev)
+{
+	struct ieee80211_hw *hw = dev_get_drvdata(dev);
+	struct ath5k_hw *ah = hw->priv;
+
+	ath5k_led_off(ah);
+	return 0;
+}
+
+static int ath5k_pci_resume(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ath5k_hw *ah = hw->priv;
+
+	/*
+	 * Suspend/Resume resets the PCI configuration space, so we have to
+	 * re-disable the RETRY_TIMEOUT register (0x41) to keep
+	 * PCI Tx retries from interfering with C3 CPU state
+	 */
+	pci_write_config_byte(pdev, 0x41, 0);
+
+	ath5k_led_enable(ah);
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(ath5k_pm_ops, ath5k_pci_suspend, ath5k_pci_resume);
+#define ATH5K_PM_OPS	(&ath5k_pm_ops)
+#else
+#define ATH5K_PM_OPS	NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static struct pci_driver ath5k_pci_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= ath5k_pci_id_table,
+	.probe		= ath5k_pci_probe,
+	.remove		= ath5k_pci_remove,
+	.driver.pm	= ATH5K_PM_OPS,
+};
+
+module_pci_driver(ath5k_pci_driver);