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, 296 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c
new file mode 100644
index 000000000..02da543df
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c
@@ -0,0 +1,296 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+
+#include "mt76x02.h"
+#include "mt76x02_mcu.h"
+#include "mt76x02_usb.h"
+
+#define MT_CMD_HDR_LEN			4
+
+#define MT_FCE_DMA_ADDR			0x0230
+#define MT_FCE_DMA_LEN			0x0234
+
+#define MT_TX_CPU_FROM_FCE_CPU_DESC_IDX	0x09a8
+
+static void
+mt76x02u_multiple_mcu_reads(struct mt76_dev *dev, u8 *data, int len)
+{
+	struct mt76_usb *usb = &dev->usb;
+	int i;
+
+	WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);
+
+	for (i = 0; i < usb->mcu.rp_len; i++) {
+		u32 reg = get_unaligned_le32(data + 8 * i) - usb->mcu.base;
+		u32 val = get_unaligned_le32(data + 8 * i + 4);
+
+		WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
+		usb->mcu.rp[i].value = val;
+	}
+}
+
+static int mt76x02u_mcu_wait_resp(struct mt76_dev *dev, u8 seq)
+{
+	struct mt76_usb *usb = &dev->usb;
+	u8 *data = usb->mcu.data;
+	int i, len, ret;
+	u32 rxfce;
+
+	for (i = 0; i < 5; i++) {
+		ret = mt76u_bulk_msg(dev, data, MCU_RESP_URB_SIZE, &len,
+				     300, MT_EP_IN_CMD_RESP);
+		if (ret == -ETIMEDOUT)
+			continue;
+		if (ret)
+			goto out;
+
+		if (usb->mcu.rp)
+			mt76x02u_multiple_mcu_reads(dev, data + 4, len - 8);
+
+		rxfce = get_unaligned_le32(data);
+		if (seq == FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce) &&
+		    FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce) == EVT_CMD_DONE)
+			return 0;
+
+		dev_err(dev->dev, "error: MCU resp evt:%lx seq:%hhx-%lx\n",
+			FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce),
+			seq, FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce));
+	}
+out:
+	dev_err(dev->dev, "error: %s failed with %d\n", __func__, ret);
+	return ret;
+}
+
+static int
+__mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
+			int cmd, bool wait_resp)
+{
+	u8 seq = 0;
+	u32 info;
+	int ret;
+
+	if (test_bit(MT76_REMOVED, &dev->phy.state)) {
+		ret = 0;
+		goto out;
+	}
+
+	if (wait_resp) {
+		seq = ++dev->mcu.msg_seq & 0xf;
+		if (!seq)
+			seq = ++dev->mcu.msg_seq & 0xf;
+	}
+
+	info = FIELD_PREP(MT_MCU_MSG_CMD_SEQ, seq) |
+	       FIELD_PREP(MT_MCU_MSG_CMD_TYPE, cmd) |
+	       MT_MCU_MSG_TYPE_CMD;
+	ret = mt76x02u_skb_dma_info(skb, CPU_TX_PORT, info);
+	if (ret)
+		return ret;
+
+	ret = mt76u_bulk_msg(dev, skb->data, skb->len, NULL, 500,
+			     MT_EP_OUT_INBAND_CMD);
+	if (ret)
+		goto out;
+
+	if (wait_resp)
+		ret = mt76x02u_mcu_wait_resp(dev, seq);
+
+out:
+	consume_skb(skb);
+
+	return ret;
+}
+
+static int
+mt76x02u_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data,
+		      int len, bool wait_resp)
+{
+	struct sk_buff *skb;
+	int err;
+
+	skb = mt76_mcu_msg_alloc(dev, data, len);
+	if (!skb)
+		return -ENOMEM;
+
+	mutex_lock(&dev->mcu.mutex);
+	err = __mt76x02u_mcu_send_msg(dev, skb, cmd, wait_resp);
+	mutex_unlock(&dev->mcu.mutex);
+
+	return err;
+}
+
+static inline void skb_put_le32(struct sk_buff *skb, u32 val)
+{
+	put_unaligned_le32(val, skb_put(skb, 4));
+}
+
+static int
+mt76x02u_mcu_wr_rp(struct mt76_dev *dev, u32 base,
+		   const struct mt76_reg_pair *data, int n)
+{
+	const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
+	const int CMD_RANDOM_WRITE = 12;
+	struct sk_buff *skb;
+	int cnt, i, ret;
+
+	if (!n)
+		return 0;
+
+	cnt = min(max_vals_per_cmd, n);
+
+	skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+	skb_reserve(skb, MT_DMA_HDR_LEN);
+
+	for (i = 0; i < cnt; i++) {
+		skb_put_le32(skb, base + data[i].reg);
+		skb_put_le32(skb, data[i].value);
+	}
+
+	mutex_lock(&dev->mcu.mutex);
+	ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_WRITE, cnt == n);
+	mutex_unlock(&dev->mcu.mutex);
+	if (ret)
+		return ret;
+
+	return mt76x02u_mcu_wr_rp(dev, base, data + cnt, n - cnt);
+}
+
+static int
+mt76x02u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
+		   struct mt76_reg_pair *data, int n)
+{
+	const int CMD_RANDOM_READ = 10;
+	const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
+	struct mt76_usb *usb = &dev->usb;
+	struct sk_buff *skb;
+	int cnt, i, ret;
+
+	if (!n)
+		return 0;
+
+	cnt = min(max_vals_per_cmd, n);
+	if (cnt != n)
+		return -EINVAL;
+
+	skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+	skb_reserve(skb, MT_DMA_HDR_LEN);
+
+	for (i = 0; i < cnt; i++) {
+		skb_put_le32(skb, base + data[i].reg);
+		skb_put_le32(skb, data[i].value);
+	}
+
+	mutex_lock(&dev->mcu.mutex);
+
+	usb->mcu.rp = data;
+	usb->mcu.rp_len = n;
+	usb->mcu.base = base;
+
+	ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_READ, true);
+
+	usb->mcu.rp = NULL;
+
+	mutex_unlock(&dev->mcu.mutex);
+
+	return ret;
+}
+
+void mt76x02u_mcu_fw_reset(struct mt76x02_dev *dev)
+{
+	mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
+			     USB_DIR_OUT | USB_TYPE_VENDOR,
+			     0x1, 0, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_reset);
+
+static int
+__mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, u8 *data,
+			    const void *fw_data, int len, u32 dst_addr)
+{
+	__le32 info;
+	u32 val;
+	int err, data_len;
+
+	info = cpu_to_le32(FIELD_PREP(MT_MCU_MSG_PORT, CPU_TX_PORT) |
+			   FIELD_PREP(MT_MCU_MSG_LEN, len) |
+			   MT_MCU_MSG_TYPE_CMD);
+
+	memcpy(data, &info, sizeof(info));
+	memcpy(data + sizeof(info), fw_data, len);
+	memset(data + sizeof(info) + len, 0, 4);
+
+	mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE,
+			MT_FCE_DMA_ADDR, dst_addr);
+	len = roundup(len, 4);
+	mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE,
+			MT_FCE_DMA_LEN, len << 16);
+
+	data_len = MT_CMD_HDR_LEN + len + sizeof(info);
+
+	err = mt76u_bulk_msg(&dev->mt76, data, data_len, NULL, 1000,
+			     MT_EP_OUT_INBAND_CMD);
+	if (err) {
+		dev_err(dev->mt76.dev, "firmware upload failed: %d\n", err);
+		return err;
+	}
+
+	val = mt76_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
+	val++;
+	mt76_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);
+
+	return 0;
+}
+
+int mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, const void *data,
+			      int data_len, u32 max_payload, u32 offset)
+{
+	int len, err = 0, pos = 0, max_len = max_payload - 8;
+	u8 *buf;
+
+	buf = kmalloc(max_payload, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	while (data_len > 0) {
+		len = min_t(int, data_len, max_len);
+		err = __mt76x02u_mcu_fw_send_data(dev, buf, data + pos,
+						  len, offset + pos);
+		if (err < 0)
+			break;
+
+		data_len -= len;
+		pos += len;
+		usleep_range(5000, 10000);
+	}
+	kfree(buf);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_send_data);
+
+void mt76x02u_init_mcu(struct mt76_dev *dev)
+{
+	static const struct mt76_mcu_ops mt76x02u_mcu_ops = {
+		.headroom = MT_CMD_HDR_LEN,
+		.tailroom = 8,
+		.mcu_send_msg = mt76x02u_mcu_send_msg,
+		.mcu_parse_response = mt76x02_mcu_parse_response,
+		.mcu_wr_rp = mt76x02u_mcu_wr_rp,
+		.mcu_rd_rp = mt76x02u_mcu_rd_rp,
+	};
+
+	dev->mcu_ops = &mt76x02u_mcu_ops;
+}
+EXPORT_SYMBOL_GPL(mt76x02u_init_mcu);
+
+MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
+MODULE_LICENSE("Dual BSD/GPL");