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, 281 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mediatek/mtk_wed_wo.h b/drivers/net/ethernet/mediatek/mtk_wed_wo.h
new file mode 100644
index 000000000..dbcf42ce9
--- /dev/null
+++ b/drivers/net/ethernet/mediatek/mtk_wed_wo.h
@@ -0,0 +1,281 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (C) 2022 Lorenzo Bianconi <lorenzo@kernel.org>  */
+
+#ifndef __MTK_WED_WO_H
+#define __MTK_WED_WO_H
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+
+struct mtk_wed_hw;
+
+struct mtk_wed_mcu_hdr {
+	/* DW0 */
+	u8 version;
+	u8 cmd;
+	__le16 length;
+
+	/* DW1 */
+	__le16 seq;
+	__le16 flag;
+
+	/* DW2 */
+	__le32 status;
+
+	/* DW3 */
+	u8 rsv[20];
+};
+
+struct mtk_wed_wo_log_info {
+	__le32 sn;
+	__le32 total;
+	__le32 rro;
+	__le32 mod;
+};
+
+enum mtk_wed_wo_event {
+	MTK_WED_WO_EVT_LOG_DUMP		= 0x1,
+	MTK_WED_WO_EVT_PROFILING	= 0x2,
+	MTK_WED_WO_EVT_RXCNT_INFO	= 0x3,
+};
+
+#define MTK_WED_MODULE_ID_WO		1
+#define MTK_FW_DL_TIMEOUT		4000000 /* us */
+#define MTK_WOCPU_TIMEOUT		2000000 /* us */
+
+enum {
+	MTK_WED_WARP_CMD_FLAG_RSP		= BIT(0),
+	MTK_WED_WARP_CMD_FLAG_NEED_RSP		= BIT(1),
+	MTK_WED_WARP_CMD_FLAG_FROM_TO_WO	= BIT(2),
+};
+
+#define MTK_WED_WO_CPU_MCUSYS_RESET_ADDR	0x15194050
+#define MTK_WED_WO_CPU_WO0_MCUSYS_RESET_MASK	0x20
+#define MTK_WED_WO_CPU_WO1_MCUSYS_RESET_MASK	0x1
+
+enum {
+	MTK_WED_WO_REGION_EMI,
+	MTK_WED_WO_REGION_ILM,
+	MTK_WED_WO_REGION_DATA,
+	MTK_WED_WO_REGION_BOOT,
+	__MTK_WED_WO_REGION_MAX,
+};
+
+enum mtk_wed_wo_state {
+	MTK_WED_WO_STATE_UNDEFINED,
+	MTK_WED_WO_STATE_INIT,
+	MTK_WED_WO_STATE_ENABLE,
+	MTK_WED_WO_STATE_DISABLE,
+	MTK_WED_WO_STATE_HALT,
+	MTK_WED_WO_STATE_GATING,
+	MTK_WED_WO_STATE_SER_RESET,
+	MTK_WED_WO_STATE_WF_RESET,
+};
+
+enum mtk_wed_wo_done_state {
+	MTK_WED_WOIF_UNDEFINED,
+	MTK_WED_WOIF_DISABLE_DONE,
+	MTK_WED_WOIF_TRIGGER_ENABLE,
+	MTK_WED_WOIF_ENABLE_DONE,
+	MTK_WED_WOIF_TRIGGER_GATING,
+	MTK_WED_WOIF_GATING_DONE,
+	MTK_WED_WOIF_TRIGGER_HALT,
+	MTK_WED_WOIF_HALT_DONE,
+};
+
+enum mtk_wed_dummy_cr_idx {
+	MTK_WED_DUMMY_CR_FWDL,
+	MTK_WED_DUMMY_CR_WO_STATUS,
+};
+
+#define MT7986_FIRMWARE_WO0	"mediatek/mt7986_wo_0.bin"
+#define MT7986_FIRMWARE_WO1	"mediatek/mt7986_wo_1.bin"
+
+#define MTK_WO_MCU_CFG_LS_BASE				0
+#define MTK_WO_MCU_CFG_LS_HW_VER_ADDR			(MTK_WO_MCU_CFG_LS_BASE + 0x000)
+#define MTK_WO_MCU_CFG_LS_FW_VER_ADDR			(MTK_WO_MCU_CFG_LS_BASE + 0x004)
+#define MTK_WO_MCU_CFG_LS_CFG_DBG1_ADDR			(MTK_WO_MCU_CFG_LS_BASE + 0x00c)
+#define MTK_WO_MCU_CFG_LS_CFG_DBG2_ADDR			(MTK_WO_MCU_CFG_LS_BASE + 0x010)
+#define MTK_WO_MCU_CFG_LS_WF_MCCR_ADDR			(MTK_WO_MCU_CFG_LS_BASE + 0x014)
+#define MTK_WO_MCU_CFG_LS_WF_MCCR_SET_ADDR		(MTK_WO_MCU_CFG_LS_BASE + 0x018)
+#define MTK_WO_MCU_CFG_LS_WF_MCCR_CLR_ADDR		(MTK_WO_MCU_CFG_LS_BASE + 0x01c)
+#define MTK_WO_MCU_CFG_LS_WF_MCU_CFG_WM_WA_ADDR		(MTK_WO_MCU_CFG_LS_BASE + 0x050)
+#define MTK_WO_MCU_CFG_LS_WM_BOOT_ADDR_ADDR		(MTK_WO_MCU_CFG_LS_BASE + 0x060)
+#define MTK_WO_MCU_CFG_LS_WA_BOOT_ADDR_ADDR		(MTK_WO_MCU_CFG_LS_BASE + 0x064)
+
+#define MTK_WO_MCU_CFG_LS_WF_WM_WA_WM_CPU_RSTB_MASK	BIT(5)
+#define MTK_WO_MCU_CFG_LS_WF_WM_WA_WA_CPU_RSTB_MASK	BIT(0)
+
+#define MTK_WED_WO_RING_SIZE	256
+#define MTK_WED_WO_CMD_LEN	1504
+
+#define MTK_WED_WO_TXCH_NUM		0
+#define MTK_WED_WO_RXCH_NUM		1
+#define MTK_WED_WO_RXCH_WO_EXCEPTION	7
+
+#define MTK_WED_WO_TXCH_INT_MASK	BIT(0)
+#define MTK_WED_WO_RXCH_INT_MASK	BIT(1)
+#define MTK_WED_WO_EXCEPTION_INT_MASK	BIT(7)
+#define MTK_WED_WO_ALL_INT_MASK		(MTK_WED_WO_RXCH_INT_MASK | \
+					 MTK_WED_WO_EXCEPTION_INT_MASK)
+
+#define MTK_WED_WO_CCIF_BUSY		0x004
+#define MTK_WED_WO_CCIF_START		0x008
+#define MTK_WED_WO_CCIF_TCHNUM		0x00c
+#define MTK_WED_WO_CCIF_RCHNUM		0x010
+#define MTK_WED_WO_CCIF_RCHNUM_MASK	GENMASK(7, 0)
+
+#define MTK_WED_WO_CCIF_ACK		0x014
+#define MTK_WED_WO_CCIF_IRQ0_MASK	0x018
+#define MTK_WED_WO_CCIF_IRQ1_MASK	0x01c
+#define MTK_WED_WO_CCIF_DUMMY1		0x020
+#define MTK_WED_WO_CCIF_DUMMY2		0x024
+#define MTK_WED_WO_CCIF_DUMMY3		0x028
+#define MTK_WED_WO_CCIF_DUMMY4		0x02c
+#define MTK_WED_WO_CCIF_SHADOW1		0x030
+#define MTK_WED_WO_CCIF_SHADOW2		0x034
+#define MTK_WED_WO_CCIF_SHADOW3		0x038
+#define MTK_WED_WO_CCIF_SHADOW4		0x03c
+#define MTK_WED_WO_CCIF_DUMMY5		0x050
+#define MTK_WED_WO_CCIF_DUMMY6		0x054
+#define MTK_WED_WO_CCIF_DUMMY7		0x058
+#define MTK_WED_WO_CCIF_DUMMY8		0x05c
+#define MTK_WED_WO_CCIF_SHADOW5		0x060
+#define MTK_WED_WO_CCIF_SHADOW6		0x064
+#define MTK_WED_WO_CCIF_SHADOW7		0x068
+#define MTK_WED_WO_CCIF_SHADOW8		0x06c
+
+#define MTK_WED_WO_CTL_SD_LEN1		GENMASK(13, 0)
+#define MTK_WED_WO_CTL_LAST_SEC1	BIT(14)
+#define MTK_WED_WO_CTL_BURST		BIT(15)
+#define MTK_WED_WO_CTL_SD_LEN0_SHIFT	16
+#define MTK_WED_WO_CTL_SD_LEN0		GENMASK(29, 16)
+#define MTK_WED_WO_CTL_LAST_SEC0	BIT(30)
+#define MTK_WED_WO_CTL_DMA_DONE		BIT(31)
+#define MTK_WED_WO_INFO_WINFO		GENMASK(15, 0)
+
+struct mtk_wed_wo_memory_region {
+	const char *name;
+	void __iomem *addr;
+	phys_addr_t phy_addr;
+	u32 size;
+	bool shared:1;
+	bool consumed:1;
+};
+
+struct mtk_wed_fw_region {
+	__le32 decomp_crc;
+	__le32 decomp_len;
+	__le32 decomp_blk_sz;
+	u8 rsv0[4];
+	__le32 addr;
+	__le32 len;
+	u8 feature_set;
+	u8 rsv1[15];
+} __packed;
+
+struct mtk_wed_fw_trailer {
+	u8 chip_id;
+	u8 eco_code;
+	u8 num_region;
+	u8 format_ver;
+	u8 format_flag;
+	u8 rsv[2];
+	char fw_ver[10];
+	char build_date[15];
+	u32 crc;
+};
+
+struct mtk_wed_wo_queue_regs {
+	u32 desc_base;
+	u32 ring_size;
+	u32 cpu_idx;
+	u32 dma_idx;
+};
+
+struct mtk_wed_wo_queue_desc {
+	__le32 buf0;
+	__le32 ctrl;
+	__le32 buf1;
+	__le32 info;
+	__le32 reserved[4];
+} __packed __aligned(32);
+
+struct mtk_wed_wo_queue_entry {
+	dma_addr_t addr;
+	void *buf;
+	u32 len;
+};
+
+struct mtk_wed_wo_queue {
+	struct mtk_wed_wo_queue_regs regs;
+
+	struct page_frag_cache cache;
+
+	struct mtk_wed_wo_queue_desc *desc;
+	dma_addr_t desc_dma;
+
+	struct mtk_wed_wo_queue_entry *entry;
+
+	u16 head;
+	u16 tail;
+	int n_desc;
+	int queued;
+	int buf_size;
+
+};
+
+struct mtk_wed_wo {
+	struct mtk_wed_hw *hw;
+	struct mtk_wed_wo_memory_region boot;
+
+	struct mtk_wed_wo_queue q_tx;
+	struct mtk_wed_wo_queue q_rx;
+
+	struct {
+		struct mutex mutex;
+		int timeout;
+		u16 seq;
+
+		struct sk_buff_head res_q;
+		wait_queue_head_t wait;
+	} mcu;
+
+	struct {
+		struct regmap *regs;
+
+		spinlock_t lock;
+		struct tasklet_struct irq_tasklet;
+		int irq;
+		u32 irq_mask;
+	} mmio;
+};
+
+static inline int
+mtk_wed_mcu_check_msg(struct mtk_wed_wo *wo, struct sk_buff *skb)
+{
+	struct mtk_wed_mcu_hdr *hdr = (struct mtk_wed_mcu_hdr *)skb->data;
+
+	if (hdr->version)
+		return -EINVAL;
+
+	if (skb->len < sizeof(*hdr) || skb->len != le16_to_cpu(hdr->length))
+		return -EINVAL;
+
+	return 0;
+}
+
+void mtk_wed_mcu_rx_event(struct mtk_wed_wo *wo, struct sk_buff *skb);
+void mtk_wed_mcu_rx_unsolicited_event(struct mtk_wed_wo *wo,
+				      struct sk_buff *skb);
+int mtk_wed_mcu_send_msg(struct mtk_wed_wo *wo, int id, int cmd,
+			 const void *data, int len, bool wait_resp);
+int mtk_wed_mcu_msg_update(struct mtk_wed_device *dev, int id, void *data,
+			   int len);
+int mtk_wed_mcu_init(struct mtk_wed_wo *wo);
+int mtk_wed_wo_init(struct mtk_wed_hw *hw);
+void mtk_wed_wo_deinit(struct mtk_wed_hw *hw);
+int mtk_wed_wo_queue_tx_skb(struct mtk_wed_wo *dev, struct mtk_wed_wo_queue *q,
+			    struct sk_buff *skb);
+
+#endif /* __MTK_WED_WO_H */