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, 198 insertions, 0 deletions

diff --git a/drivers/net/wireless/purelifi/plfxlc/usb.h b/drivers/net/wireless/purelifi/plfxlc/usb.h
new file mode 100644
index 000000000..ba2defd59
--- /dev/null
+++ b/drivers/net/wireless/purelifi/plfxlc/usb.h
@@ -0,0 +1,198 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2021 pureLiFi
+ */
+
+#ifndef PLFXLC_USB_H
+#define PLFXLC_USB_H
+
+#include <linux/completion.h>
+#include <linux/netdevice.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>
+#include <linux/usb.h>
+
+#include "intf.h"
+
+#define USB_BULK_MSG_TIMEOUT_MS 2000
+
+#define PURELIFI_X_VENDOR_ID_0   0x16C1
+#define PURELIFI_X_PRODUCT_ID_0  0x1CDE
+#define PURELIFI_XC_VENDOR_ID_0  0x2EF5
+#define PURELIFI_XC_PRODUCT_ID_0 0x0008
+#define PURELIFI_XL_VENDOR_ID_0  0x2EF5
+#define PURELIFI_XL_PRODUCT_ID_0 0x000A /* Station */
+
+#define PLF_FPGA_STATUS_LEN 2
+#define PLF_FPGA_STATE_LEN 9
+#define PLF_BULK_TLEN 16384
+#define PLF_FPGA_MG 6 /* Magic check */
+#define PLF_XL_BUF_LEN 64
+#define PLF_MSG_STATUS_OFFSET 7
+
+#define PLF_USB_TIMEOUT 1000
+#define PLF_MSLEEP_TIME 200
+
+#define PURELIFI_URB_RETRY_MAX 5
+
+#define plfxlc_usb_dev(usb) (&(usb)->intf->dev)
+
+/* Tx retry backoff timer (in milliseconds) */
+#define TX_RETRY_BACKOFF_MS 10
+#define STA_QUEUE_CLEANUP_MS 5000
+
+/* Tx retry backoff timer (in jiffies) */
+#define TX_RETRY_BACKOFF_JIFF ((TX_RETRY_BACKOFF_MS * HZ) / 1000)
+#define STA_QUEUE_CLEANUP_JIFF ((STA_QUEUE_CLEANUP_MS * HZ) / 1000)
+
+/* Ensures that MAX_TRANSFER_SIZE is even. */
+#define MAX_TRANSFER_SIZE (USB_MAX_TRANSFER_SIZE & ~1)
+#define plfxlc_urb_dev(urb) (&(urb)->dev->dev)
+
+#define STATION_FIFO_ALMOST_FULL_MESSAGE     0
+#define STATION_FIFO_ALMOST_FULL_NOT_MESSAGE 1
+#define STATION_CONNECT_MESSAGE              2
+#define STATION_DISCONNECT_MESSAGE           3
+
+int plfxlc_usb_wreq(struct usb_interface *ez_usb, void *buffer, int buffer_len,
+		    enum plf_usb_req_enum usb_req_id);
+void plfxlc_tx_urb_complete(struct urb *urb);
+
+enum {
+	USB_MAX_RX_SIZE       = 4800,
+	USB_MAX_EP_INT_BUFFER = 64,
+};
+
+struct plfxlc_usb_interrupt {
+	spinlock_t lock; /* spin lock for usb interrupt buffer */
+	struct urb *urb;
+	void *buffer;
+	int interval;
+};
+
+#define RX_URBS_COUNT 5
+
+struct plfxlc_usb_rx {
+	spinlock_t lock; /* spin lock for rx urb */
+	struct mutex setup_mutex; /* mutex lockt for rx urb */
+	u8 fragment[2 * USB_MAX_RX_SIZE];
+	unsigned int fragment_length;
+	unsigned int usb_packet_size;
+	struct urb **urbs;
+	int urbs_count;
+};
+
+struct plf_station {
+   /*  7...3    |    2      |     1     |     0	    |
+    * Reserved  | Heartbeat | FIFO full | Connected |
+    */
+	unsigned char flag;
+	unsigned char mac[ETH_ALEN];
+	struct sk_buff_head data_list;
+};
+
+struct plfxlc_firmware_file {
+	u32 total_files;
+	u32 total_size;
+	u32 size;
+	u32 start_addr;
+	u32 control_packets;
+} __packed;
+
+#define STATION_CONNECTED_FLAG 0x1
+#define STATION_FIFO_FULL_FLAG 0x2
+#define STATION_HEARTBEAT_FLAG 0x4
+#define STATION_ACTIVE_FLAG    0xFD
+
+#define PURELIFI_SERIAL_LEN 256
+#define STA_BROADCAST_INDEX (AP_USER_LIMIT)
+#define MAX_STA_NUM         (AP_USER_LIMIT + 1)
+
+struct plfxlc_usb_tx {
+	unsigned long enabled;
+	spinlock_t lock; /* spinlock for USB tx */
+	u8 mac_fifo_full;
+	struct sk_buff_head submitted_skbs;
+	struct usb_anchor submitted;
+	int submitted_urbs;
+	bool stopped;
+	struct timer_list tx_retry_timer;
+	struct plf_station station[MAX_STA_NUM];
+};
+
+/* Contains the usb parts. The structure doesn't require a lock because intf
+ * will not be changed after initialization.
+ */
+struct plfxlc_usb {
+	struct timer_list sta_queue_cleanup;
+	struct plfxlc_usb_rx rx;
+	struct plfxlc_usb_tx tx;
+	struct usb_interface *intf;
+	struct usb_interface *ez_usb;
+	u8 req_buf[64]; /* plfxlc_usb_iowrite16v needs 62 bytes */
+	u8 sidx; /* store last served */
+	bool rx_usb_enabled;
+	bool initialized;
+	bool was_running;
+	bool link_up;
+};
+
+enum endpoints {
+	EP_DATA_IN  = 2,
+	EP_DATA_OUT = 8,
+};
+
+enum devicetype {
+	DEVICE_LIFI_X  = 0,
+	DEVICE_LIFI_XC  = 1,
+	DEVICE_LIFI_XL  = 1,
+};
+
+enum {
+	PLF_BIT_ENABLED = 1,
+	PLF_BIT_MAX = 2,
+};
+
+int plfxlc_usb_wreq_async(struct plfxlc_usb *usb, const u8 *buffer,
+			  int buffer_len, enum plf_usb_req_enum usb_req_id,
+			  usb_complete_t complete_fn, void *context);
+
+static inline struct usb_device *
+plfxlc_usb_to_usbdev(struct plfxlc_usb *usb)
+{
+	return interface_to_usbdev(usb->intf);
+}
+
+static inline struct ieee80211_hw *
+plfxlc_intf_to_hw(struct usb_interface *intf)
+{
+	return usb_get_intfdata(intf);
+}
+
+static inline struct ieee80211_hw *
+plfxlc_usb_to_hw(struct plfxlc_usb *usb)
+{
+	return plfxlc_intf_to_hw(usb->intf);
+}
+
+void plfxlc_usb_init(struct plfxlc_usb *usb, struct ieee80211_hw *hw,
+		     struct usb_interface *intf);
+void plfxlc_send_packet_from_data_queue(struct plfxlc_usb *usb);
+void plfxlc_usb_release(struct plfxlc_usb *usb);
+void plfxlc_usb_disable_rx(struct plfxlc_usb *usb);
+void plfxlc_usb_enable_tx(struct plfxlc_usb *usb);
+void plfxlc_usb_disable_tx(struct plfxlc_usb *usb);
+int plfxlc_usb_tx(struct plfxlc_usb *usb, struct sk_buff *skb);
+int plfxlc_usb_enable_rx(struct plfxlc_usb *usb);
+int plfxlc_usb_init_hw(struct plfxlc_usb *usb);
+const char *plfxlc_speed(enum usb_device_speed speed);
+
+/* Firmware declarations */
+int plfxlc_download_xl_firmware(struct usb_interface *intf);
+int plfxlc_download_fpga(struct usb_interface *intf);
+
+int plfxlc_upload_mac_and_serial(struct usb_interface *intf,
+				 unsigned char *hw_address,
+				 unsigned char *serial_number);
+
+#endif /* PLFXLC_USB_H */