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/net/wireless/mediatek/mt76/mt7921/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
new file mode 100644
index 000000000..8ce4252b8
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
@@ -0,0 +1,342 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2021 MediaTek Inc.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio_func.h>
+
+#include "mt7921.h"
+#include "../sdio.h"
+#include "mac.h"
+#include "mcu.h"
+
+static const struct sdio_device_id mt7921s_table[] = {
+	{ SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7901),
+		.driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
+	{ }	/* Terminating entry */
+};
+
+static void mt7921s_txrx_worker(struct mt76_worker *w)
+{
+	struct mt76_sdio *sdio = container_of(w, struct mt76_sdio,
+					      txrx_worker);
+	struct mt76_dev *mdev = container_of(sdio, struct mt76_dev, sdio);
+	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+
+	if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
+		queue_work(mdev->wq, &dev->pm.wake_work);
+		return;
+	}
+
+	mt76s_txrx_worker(sdio);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
+}
+
+static void mt7921s_unregister_device(struct mt7921_dev *dev)
+{
+	struct mt76_connac_pm *pm = &dev->pm;
+
+	cancel_work_sync(&dev->init_work);
+	mt76_unregister_device(&dev->mt76);
+	cancel_delayed_work_sync(&pm->ps_work);
+	cancel_work_sync(&pm->wake_work);
+
+	mt76s_deinit(&dev->mt76);
+	mt7921s_wfsys_reset(dev);
+	skb_queue_purge(&dev->mt76.mcu.res_q);
+
+	mt76_free_device(&dev->mt76);
+}
+
+static int mt7921s_parse_intr(struct mt76_dev *dev, struct mt76s_intr *intr)
+{
+	struct mt76_sdio *sdio = &dev->sdio;
+	struct mt7921_sdio_intr *irq_data = sdio->intr_data;
+	int i, err;
+
+	sdio_claim_host(sdio->func);
+	err = sdio_readsb(sdio->func, irq_data, MCR_WHISR, sizeof(*irq_data));
+	sdio_release_host(sdio->func);
+
+	if (err < 0)
+		return err;
+
+	if (irq_data->rx.num[0] > 16 ||
+	    irq_data->rx.num[1] > 128)
+		return -EINVAL;
+
+	intr->isr = irq_data->isr;
+	intr->rec_mb = irq_data->rec_mb;
+	intr->tx.wtqcr = irq_data->tx.wtqcr;
+	intr->rx.num = irq_data->rx.num;
+	for (i = 0; i < 2 ; i++) {
+		if (!i)
+			intr->rx.len[0] = irq_data->rx.len0;
+		else
+			intr->rx.len[1] = irq_data->rx.len1;
+	}
+
+	return 0;
+}
+
+static int mt7921s_probe(struct sdio_func *func,
+			 const struct sdio_device_id *id)
+{
+	static const struct mt76_driver_ops drv_ops = {
+		.txwi_size = MT_SDIO_TXD_SIZE,
+		.drv_flags = MT_DRV_AMSDU_OFFLOAD,
+		.survey_flags = SURVEY_INFO_TIME_TX |
+				SURVEY_INFO_TIME_RX |
+				SURVEY_INFO_TIME_BSS_RX,
+		.tx_prepare_skb = mt7921_usb_sdio_tx_prepare_skb,
+		.tx_complete_skb = mt7921_usb_sdio_tx_complete_skb,
+		.tx_status_data = mt7921_usb_sdio_tx_status_data,
+		.rx_skb = mt7921_queue_rx_skb,
+		.rx_check = mt7921_rx_check,
+		.sta_ps = mt7921_sta_ps,
+		.sta_add = mt7921_mac_sta_add,
+		.sta_assoc = mt7921_mac_sta_assoc,
+		.sta_remove = mt7921_mac_sta_remove,
+		.update_survey = mt7921_update_channel,
+	};
+	static const struct mt76_bus_ops mt7921s_ops = {
+		.rr = mt76s_rr,
+		.rmw = mt76s_rmw,
+		.wr = mt76s_wr,
+		.write_copy = mt76s_write_copy,
+		.read_copy = mt76s_read_copy,
+		.wr_rp = mt76s_wr_rp,
+		.rd_rp = mt76s_rd_rp,
+		.type = MT76_BUS_SDIO,
+	};
+	static const struct mt7921_hif_ops mt7921_sdio_ops = {
+		.init_reset = mt7921s_init_reset,
+		.reset = mt7921s_mac_reset,
+		.mcu_init = mt7921s_mcu_init,
+		.drv_own = mt7921s_mcu_drv_pmctrl,
+		.fw_own = mt7921s_mcu_fw_pmctrl,
+	};
+
+	struct ieee80211_ops *ops;
+	struct mt7921_dev *dev;
+	struct mt76_dev *mdev;
+	u8 features;
+	int ret;
+
+	features = mt7921_check_offload_capability(&func->dev, (const char *)
+						   id->driver_data);
+
+	ops = devm_kmemdup(&func->dev, &mt7921_ops, sizeof(mt7921_ops),
+			   GFP_KERNEL);
+	if (!ops)
+		return -ENOMEM;
+
+	if (!(features & MT7921_FW_CAP_CNM)) {
+		ops->remain_on_channel = NULL;
+		ops->cancel_remain_on_channel = NULL;
+		ops->add_chanctx = NULL;
+		ops->remove_chanctx = NULL;
+		ops->change_chanctx = NULL;
+		ops->assign_vif_chanctx = NULL;
+		ops->unassign_vif_chanctx = NULL;
+		ops->mgd_prepare_tx = NULL;
+		ops->mgd_complete_tx = NULL;
+	}
+
+	mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops);
+	if (!mdev)
+		return -ENOMEM;
+
+	dev = container_of(mdev, struct mt7921_dev, mt76);
+	dev->fw_features = features;
+	dev->hif_ops = &mt7921_sdio_ops;
+	sdio_set_drvdata(func, dev);
+
+	ret = mt76s_init(mdev, func, &mt7921s_ops);
+	if (ret < 0)
+		goto error;
+
+	ret = mt76s_hw_init(mdev, func, MT76_CONNAC2_SDIO);
+	if (ret)
+		goto error;
+
+	mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
+		    (mt76_rr(dev, MT_HW_REV) & 0xff);
+	dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
+
+	mdev->sdio.parse_irq = mt7921s_parse_intr;
+	mdev->sdio.intr_data = devm_kmalloc(mdev->dev,
+					    sizeof(struct mt7921_sdio_intr),
+					    GFP_KERNEL);
+	if (!mdev->sdio.intr_data) {
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MAIN);
+	if (ret)
+		goto error;
+
+	ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MCU);
+	if (ret)
+		goto error;
+
+	ret = mt76s_alloc_tx(mdev);
+	if (ret)
+		goto error;
+
+	ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker,
+				mt7921s_txrx_worker, "sdio-txrx");
+	if (ret)
+		goto error;
+
+	sched_set_fifo_low(mdev->sdio.txrx_worker.task);
+
+	ret = mt7921_register_device(dev);
+	if (ret)
+		goto error;
+
+	return 0;
+
+error:
+	mt76s_deinit(&dev->mt76);
+	mt76_free_device(&dev->mt76);
+
+	return ret;
+}
+
+static void mt7921s_remove(struct sdio_func *func)
+{
+	struct mt7921_dev *dev = sdio_get_drvdata(func);
+
+	mt7921s_unregister_device(dev);
+}
+
+static int mt7921s_suspend(struct device *__dev)
+{
+	struct sdio_func *func = dev_to_sdio_func(__dev);
+	struct mt7921_dev *dev = sdio_get_drvdata(func);
+	struct mt76_connac_pm *pm = &dev->pm;
+	struct mt76_dev *mdev = &dev->mt76;
+	int err;
+
+	pm->suspended = true;
+	set_bit(MT76_STATE_SUSPEND, &mdev->phy.state);
+
+	flush_work(&dev->reset_work);
+	cancel_delayed_work_sync(&pm->ps_work);
+	cancel_work_sync(&pm->wake_work);
+
+	err = mt7921_mcu_drv_pmctrl(dev);
+	if (err < 0)
+		goto restore_suspend;
+
+	/* always enable deep sleep during suspend to reduce
+	 * power consumption
+	 */
+	mt76_connac_mcu_set_deep_sleep(mdev, true);
+
+	mt76_txq_schedule_all(&dev->mphy);
+	mt76_worker_disable(&mdev->tx_worker);
+	mt76_worker_disable(&mdev->sdio.status_worker);
+	cancel_work_sync(&mdev->sdio.stat_work);
+	clear_bit(MT76_READING_STATS, &dev->mphy.state);
+	mt76_tx_status_check(mdev, true);
+
+	mt76_worker_schedule(&mdev->sdio.txrx_worker);
+	wait_event_timeout(dev->mt76.sdio.wait,
+			   mt76s_txqs_empty(&dev->mt76), 5 * HZ);
+
+	/* It is supposed that SDIO bus is idle at the point */
+	err = mt76_connac_mcu_set_hif_suspend(mdev, true);
+	if (err)
+		goto restore_worker;
+
+	mt76_worker_disable(&mdev->sdio.txrx_worker);
+	mt76_worker_disable(&mdev->sdio.net_worker);
+
+	err = mt7921_mcu_fw_pmctrl(dev);
+	if (err)
+		goto restore_txrx_worker;
+
+	sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
+	return 0;
+
+restore_txrx_worker:
+	mt76_worker_enable(&mdev->sdio.net_worker);
+	mt76_worker_enable(&mdev->sdio.txrx_worker);
+	mt76_connac_mcu_set_hif_suspend(mdev, false);
+
+restore_worker:
+	mt76_worker_enable(&mdev->tx_worker);
+	mt76_worker_enable(&mdev->sdio.status_worker);
+
+	if (!pm->ds_enable)
+		mt76_connac_mcu_set_deep_sleep(mdev, false);
+
+restore_suspend:
+	clear_bit(MT76_STATE_SUSPEND, &mdev->phy.state);
+	pm->suspended = false;
+
+	if (err < 0)
+		mt7921_reset(&dev->mt76);
+
+	return err;
+}
+
+static int mt7921s_resume(struct device *__dev)
+{
+	struct sdio_func *func = dev_to_sdio_func(__dev);
+	struct mt7921_dev *dev = sdio_get_drvdata(func);
+	struct mt76_connac_pm *pm = &dev->pm;
+	struct mt76_dev *mdev = &dev->mt76;
+	int err;
+
+	clear_bit(MT76_STATE_SUSPEND, &mdev->phy.state);
+
+	err = mt7921_mcu_drv_pmctrl(dev);
+	if (err < 0)
+		goto failed;
+
+	mt76_worker_enable(&mdev->tx_worker);
+	mt76_worker_enable(&mdev->sdio.txrx_worker);
+	mt76_worker_enable(&mdev->sdio.status_worker);
+	mt76_worker_enable(&mdev->sdio.net_worker);
+
+	/* restore previous ds setting */
+	if (!pm->ds_enable)
+		mt76_connac_mcu_set_deep_sleep(mdev, false);
+
+	err = mt76_connac_mcu_set_hif_suspend(mdev, false);
+failed:
+	pm->suspended = false;
+
+	if (err < 0)
+		mt7921_reset(&dev->mt76);
+
+	return err;
+}
+
+MODULE_DEVICE_TABLE(sdio, mt7921s_table);
+MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7921_ROM_PATCH);
+
+static DEFINE_SIMPLE_DEV_PM_OPS(mt7921s_pm_ops, mt7921s_suspend, mt7921s_resume);
+
+static struct sdio_driver mt7921s_driver = {
+	.name		= KBUILD_MODNAME,
+	.probe		= mt7921s_probe,
+	.remove		= mt7921s_remove,
+	.id_table	= mt7921s_table,
+	.drv.pm		= pm_sleep_ptr(&mt7921s_pm_ops),
+};
+module_sdio_driver(mt7921s_driver);
+MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
+MODULE_LICENSE("Dual BSD/GPL");