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, 709 insertions, 0 deletions

diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
new file mode 100644
index 000000000..dfb9f55e2
--- /dev/null
+++ b/net/mac80211/debugfs.c
@@ -0,0 +1,709 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * mac80211 debugfs for wireless PHYs
+ *
+ * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright (C) 2018 - 2019, 2021-2022 Intel Corporation
+ */
+
+#include <linux/debugfs.h>
+#include <linux/rtnetlink.h>
+#include <linux/vmalloc.h>
+#include "ieee80211_i.h"
+#include "driver-ops.h"
+#include "rate.h"
+#include "debugfs.h"
+
+#define DEBUGFS_FORMAT_BUFFER_SIZE 100
+
+int mac80211_format_buffer(char __user *userbuf, size_t count,
+				  loff_t *ppos, char *fmt, ...)
+{
+	va_list args;
+	char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
+	int res;
+
+	va_start(args, fmt);
+	res = vscnprintf(buf, sizeof(buf), fmt, args);
+	va_end(args);
+
+	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...)			\
+static ssize_t name## _read(struct file *file, char __user *userbuf,	\
+			    size_t count, loff_t *ppos)			\
+{									\
+	struct ieee80211_local *local = file->private_data;		\
+									\
+	return mac80211_format_buffer(userbuf, count, ppos, 		\
+				      fmt "\n", ##value);		\
+}
+
+#define DEBUGFS_READONLY_FILE_OPS(name)			\
+static const struct file_operations name## _ops = {			\
+	.read = name## _read,						\
+	.open = simple_open,						\
+	.llseek = generic_file_llseek,					\
+};
+
+#define DEBUGFS_READONLY_FILE(name, fmt, value...)		\
+	DEBUGFS_READONLY_FILE_FN(name, fmt, value)		\
+	DEBUGFS_READONLY_FILE_OPS(name)
+
+#define DEBUGFS_ADD(name)						\
+	debugfs_create_file(#name, 0400, phyd, local, &name## _ops)
+
+#define DEBUGFS_ADD_MODE(name, mode)					\
+	debugfs_create_file(#name, mode, phyd, local, &name## _ops);
+
+
+DEBUGFS_READONLY_FILE(hw_conf, "%x",
+		      local->hw.conf.flags);
+DEBUGFS_READONLY_FILE(user_power, "%d",
+		      local->user_power_level);
+DEBUGFS_READONLY_FILE(power, "%d",
+		      local->hw.conf.power_level);
+DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
+		      local->total_ps_buffered);
+DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
+		      local->wep_iv & 0xffffff);
+DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
+	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
+
+static ssize_t aqm_read(struct file *file,
+			char __user *user_buf,
+			size_t count,
+			loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	struct fq *fq = &local->fq;
+	char buf[200];
+	int len = 0;
+
+	spin_lock_bh(&local->fq.lock);
+	rcu_read_lock();
+
+	len = scnprintf(buf, sizeof(buf),
+			"access name value\n"
+			"R fq_flows_cnt %u\n"
+			"R fq_backlog %u\n"
+			"R fq_overlimit %u\n"
+			"R fq_overmemory %u\n"
+			"R fq_collisions %u\n"
+			"R fq_memory_usage %u\n"
+			"RW fq_memory_limit %u\n"
+			"RW fq_limit %u\n"
+			"RW fq_quantum %u\n",
+			fq->flows_cnt,
+			fq->backlog,
+			fq->overmemory,
+			fq->overlimit,
+			fq->collisions,
+			fq->memory_usage,
+			fq->memory_limit,
+			fq->limit,
+			fq->quantum);
+
+	rcu_read_unlock();
+	spin_unlock_bh(&local->fq.lock);
+
+	return simple_read_from_buffer(user_buf, count, ppos,
+				       buf, len);
+}
+
+static ssize_t aqm_write(struct file *file,
+			 const char __user *user_buf,
+			 size_t count,
+			 loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[100];
+
+	if (count >= sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	if (count && buf[count - 1] == '\n')
+		buf[count - 1] = '\0';
+	else
+		buf[count] = '\0';
+
+	if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
+		return count;
+	else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
+		return count;
+	else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
+		return count;
+
+	return -EINVAL;
+}
+
+static const struct file_operations aqm_ops = {
+	.write = aqm_write,
+	.read = aqm_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
+static ssize_t airtime_flags_read(struct file *file,
+				  char __user *user_buf,
+				  size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[128] = {}, *pos, *end;
+
+	pos = buf;
+	end = pos + sizeof(buf) - 1;
+
+	if (local->airtime_flags & AIRTIME_USE_TX)
+		pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
+				 AIRTIME_USE_TX);
+	if (local->airtime_flags & AIRTIME_USE_RX)
+		pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
+				 AIRTIME_USE_RX);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf,
+				       strlen(buf));
+}
+
+static ssize_t airtime_flags_write(struct file *file,
+				   const char __user *user_buf,
+				   size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[16];
+
+	if (count >= sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	if (count && buf[count - 1] == '\n')
+		buf[count - 1] = '\0';
+	else
+		buf[count] = '\0';
+
+	if (kstrtou16(buf, 0, &local->airtime_flags))
+		return -EINVAL;
+
+	return count;
+}
+
+static const struct file_operations airtime_flags_ops = {
+	.write = airtime_flags_write,
+	.read = airtime_flags_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
+static ssize_t aql_pending_read(struct file *file,
+				char __user *user_buf,
+				size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[400];
+	int len = 0;
+
+	len = scnprintf(buf, sizeof(buf),
+			"AC     AQL pending\n"
+			"VO     %u us\n"
+			"VI     %u us\n"
+			"BE     %u us\n"
+			"BK     %u us\n"
+			"total  %u us\n",
+			atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VO]),
+			atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VI]),
+			atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BE]),
+			atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BK]),
+			atomic_read(&local->aql_total_pending_airtime));
+	return simple_read_from_buffer(user_buf, count, ppos,
+				       buf, len);
+}
+
+static const struct file_operations aql_pending_ops = {
+	.read = aql_pending_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
+static ssize_t aql_txq_limit_read(struct file *file,
+				  char __user *user_buf,
+				  size_t count,
+				  loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[400];
+	int len = 0;
+
+	len = scnprintf(buf, sizeof(buf),
+			"AC	AQL limit low	AQL limit high\n"
+			"VO	%u		%u\n"
+			"VI	%u		%u\n"
+			"BE	%u		%u\n"
+			"BK	%u		%u\n",
+			local->aql_txq_limit_low[IEEE80211_AC_VO],
+			local->aql_txq_limit_high[IEEE80211_AC_VO],
+			local->aql_txq_limit_low[IEEE80211_AC_VI],
+			local->aql_txq_limit_high[IEEE80211_AC_VI],
+			local->aql_txq_limit_low[IEEE80211_AC_BE],
+			local->aql_txq_limit_high[IEEE80211_AC_BE],
+			local->aql_txq_limit_low[IEEE80211_AC_BK],
+			local->aql_txq_limit_high[IEEE80211_AC_BK]);
+	return simple_read_from_buffer(user_buf, count, ppos,
+				       buf, len);
+}
+
+static ssize_t aql_txq_limit_write(struct file *file,
+				   const char __user *user_buf,
+				   size_t count,
+				   loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[100];
+	u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
+	struct sta_info *sta;
+
+	if (count >= sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	if (count && buf[count - 1] == '\n')
+		buf[count - 1] = '\0';
+	else
+		buf[count] = '\0';
+
+	if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
+		return -EINVAL;
+
+	if (ac >= IEEE80211_NUM_ACS)
+		return -EINVAL;
+
+	q_limit_low_old = local->aql_txq_limit_low[ac];
+	q_limit_high_old = local->aql_txq_limit_high[ac];
+
+	local->aql_txq_limit_low[ac] = q_limit_low;
+	local->aql_txq_limit_high[ac] = q_limit_high;
+
+	mutex_lock(&local->sta_mtx);
+	list_for_each_entry(sta, &local->sta_list, list) {
+		/* If a sta has customized queue limits, keep it */
+		if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
+		    sta->airtime[ac].aql_limit_high == q_limit_high_old) {
+			sta->airtime[ac].aql_limit_low = q_limit_low;
+			sta->airtime[ac].aql_limit_high = q_limit_high;
+		}
+	}
+	mutex_unlock(&local->sta_mtx);
+	return count;
+}
+
+static const struct file_operations aql_txq_limit_ops = {
+	.write = aql_txq_limit_write,
+	.read = aql_txq_limit_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
+static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
+			       size_t count, loff_t *ppos)
+{
+	char buf[3];
+	int len;
+
+	len = scnprintf(buf, sizeof(buf), "%d\n",
+			!static_key_false(&aql_disable.key));
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
+				size_t count, loff_t *ppos)
+{
+	bool aql_disabled = static_key_false(&aql_disable.key);
+	char buf[3];
+	size_t len;
+
+	if (count > sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	buf[sizeof(buf) - 1] = '\0';
+	len = strlen(buf);
+	if (len > 0 && buf[len - 1] == '\n')
+		buf[len - 1] = 0;
+
+	if (buf[0] == '0' && buf[1] == '\0') {
+		if (!aql_disabled)
+			static_branch_inc(&aql_disable);
+	} else if (buf[0] == '1' && buf[1] == '\0') {
+		if (aql_disabled)
+			static_branch_dec(&aql_disable);
+	} else {
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+static const struct file_operations aql_enable_ops = {
+	.write = aql_enable_write,
+	.read = aql_enable_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
+static ssize_t force_tx_status_read(struct file *file,
+				    char __user *user_buf,
+				    size_t count,
+				    loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[3];
+	int len = 0;
+
+	len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
+
+	return simple_read_from_buffer(user_buf, count, ppos,
+				       buf, len);
+}
+
+static ssize_t force_tx_status_write(struct file *file,
+				     const char __user *user_buf,
+				     size_t count,
+				     loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[3];
+
+	if (count >= sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	if (count && buf[count - 1] == '\n')
+		buf[count - 1] = '\0';
+	else
+		buf[count] = '\0';
+
+	if (buf[0] == '0' && buf[1] == '\0')
+		local->force_tx_status = 0;
+	else if (buf[0] == '1' && buf[1] == '\0')
+		local->force_tx_status = 1;
+	else
+		return -EINVAL;
+
+	return count;
+}
+
+static const struct file_operations force_tx_status_ops = {
+	.write = force_tx_status_write,
+	.read = force_tx_status_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
+#ifdef CONFIG_PM
+static ssize_t reset_write(struct file *file, const char __user *user_buf,
+			   size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	int ret;
+
+	rtnl_lock();
+	wiphy_lock(local->hw.wiphy);
+	__ieee80211_suspend(&local->hw, NULL);
+	ret = __ieee80211_resume(&local->hw);
+	wiphy_unlock(local->hw.wiphy);
+
+	if (ret)
+		cfg80211_shutdown_all_interfaces(local->hw.wiphy);
+
+	rtnl_unlock();
+
+	return count;
+}
+
+static const struct file_operations reset_ops = {
+	.write = reset_write,
+	.open = simple_open,
+	.llseek = noop_llseek,
+};
+#endif
+
+static const char *hw_flag_names[] = {
+#define FLAG(F)	[IEEE80211_HW_##F] = #F
+	FLAG(HAS_RATE_CONTROL),
+	FLAG(RX_INCLUDES_FCS),
+	FLAG(HOST_BROADCAST_PS_BUFFERING),
+	FLAG(SIGNAL_UNSPEC),
+	FLAG(SIGNAL_DBM),
+	FLAG(NEED_DTIM_BEFORE_ASSOC),
+	FLAG(SPECTRUM_MGMT),
+	FLAG(AMPDU_AGGREGATION),
+	FLAG(SUPPORTS_PS),
+	FLAG(PS_NULLFUNC_STACK),
+	FLAG(SUPPORTS_DYNAMIC_PS),
+	FLAG(MFP_CAPABLE),
+	FLAG(WANT_MONITOR_VIF),
+	FLAG(NO_AUTO_VIF),
+	FLAG(SW_CRYPTO_CONTROL),
+	FLAG(SUPPORT_FAST_XMIT),
+	FLAG(REPORTS_TX_ACK_STATUS),
+	FLAG(CONNECTION_MONITOR),
+	FLAG(QUEUE_CONTROL),
+	FLAG(SUPPORTS_PER_STA_GTK),
+	FLAG(AP_LINK_PS),
+	FLAG(TX_AMPDU_SETUP_IN_HW),
+	FLAG(SUPPORTS_RC_TABLE),
+	FLAG(P2P_DEV_ADDR_FOR_INTF),
+	FLAG(TIMING_BEACON_ONLY),
+	FLAG(SUPPORTS_HT_CCK_RATES),
+	FLAG(CHANCTX_STA_CSA),
+	FLAG(SUPPORTS_CLONED_SKBS),
+	FLAG(SINGLE_SCAN_ON_ALL_BANDS),
+	FLAG(TDLS_WIDER_BW),
+	FLAG(SUPPORTS_AMSDU_IN_AMPDU),
+	FLAG(BEACON_TX_STATUS),
+	FLAG(NEEDS_UNIQUE_STA_ADDR),
+	FLAG(SUPPORTS_REORDERING_BUFFER),
+	FLAG(USES_RSS),
+	FLAG(TX_AMSDU),
+	FLAG(TX_FRAG_LIST),
+	FLAG(REPORTS_LOW_ACK),
+	FLAG(SUPPORTS_TX_FRAG),
+	FLAG(SUPPORTS_TDLS_BUFFER_STA),
+	FLAG(DEAUTH_NEED_MGD_TX_PREP),
+	FLAG(DOESNT_SUPPORT_QOS_NDP),
+	FLAG(BUFF_MMPDU_TXQ),
+	FLAG(SUPPORTS_VHT_EXT_NSS_BW),
+	FLAG(STA_MMPDU_TXQ),
+	FLAG(TX_STATUS_NO_AMPDU_LEN),
+	FLAG(SUPPORTS_MULTI_BSSID),
+	FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
+	FLAG(AMPDU_KEYBORDER_SUPPORT),
+	FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
+	FLAG(SUPPORTS_RX_DECAP_OFFLOAD),
+	FLAG(SUPPORTS_CONC_MON_RX_DECAP),
+	FLAG(DETECTS_COLOR_COLLISION),
+	FLAG(MLO_MCAST_MULTI_LINK_TX),
+#undef FLAG
+};
+
+static ssize_t hwflags_read(struct file *file, char __user *user_buf,
+			    size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
+	char *buf = kzalloc(bufsz, GFP_KERNEL);
+	char *pos = buf, *end = buf + bufsz - 1;
+	ssize_t rv;
+	int i;
+
+	if (!buf)
+		return -ENOMEM;
+
+	/* fail compilation if somebody adds or removes
+	 * a flag without updating the name array above
+	 */
+	BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
+
+	for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
+		if (test_bit(i, local->hw.flags))
+			pos += scnprintf(pos, end - pos, "%s\n",
+					 hw_flag_names[i]);
+	}
+
+	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+	kfree(buf);
+	return rv;
+}
+
+static ssize_t misc_read(struct file *file, char __user *user_buf,
+			 size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	/* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
+	size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
+	char *buf;
+	char *pos, *end;
+	ssize_t rv;
+	int i;
+	int ln;
+
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	pos = buf;
+	end = buf + bufsz - 1;
+
+	pos += scnprintf(pos, end - pos, "pending:\n");
+
+	for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
+		ln = skb_queue_len(&local->pending[i]);
+		pos += scnprintf(pos, end - pos, "[%i] %d\n",
+				 i, ln);
+	}
+
+	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+	kfree(buf);
+	return rv;
+}
+
+static ssize_t queues_read(struct file *file, char __user *user_buf,
+			   size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	unsigned long flags;
+	char buf[IEEE80211_MAX_QUEUES * 20];
+	int q, res = 0;
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	for (q = 0; q < local->hw.queues; q++)
+		res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
+				local->queue_stop_reasons[q],
+				skb_queue_len(&local->pending[q]));
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+DEBUGFS_READONLY_FILE_OPS(hwflags);
+DEBUGFS_READONLY_FILE_OPS(queues);
+DEBUGFS_READONLY_FILE_OPS(misc);
+
+/* statistics stuff */
+
+static ssize_t format_devstat_counter(struct ieee80211_local *local,
+	char __user *userbuf,
+	size_t count, loff_t *ppos,
+	int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
+			  int buflen))
+{
+	struct ieee80211_low_level_stats stats;
+	char buf[20];
+	int res;
+
+	rtnl_lock();
+	res = drv_get_stats(local, &stats);
+	rtnl_unlock();
+	if (res)
+		return res;
+	res = printvalue(&stats, buf, sizeof(buf));
+	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_DEVSTATS_FILE(name)					\
+static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
+				 char *buf, int buflen)			\
+{									\
+	return scnprintf(buf, buflen, "%u\n", stats->name);		\
+}									\
+static ssize_t stats_ ##name## _read(struct file *file,			\
+				     char __user *userbuf,		\
+				     size_t count, loff_t *ppos)	\
+{									\
+	return format_devstat_counter(file->private_data,		\
+				      userbuf,				\
+				      count,				\
+				      ppos,				\
+				      print_devstats_##name);		\
+}									\
+									\
+static const struct file_operations stats_ ##name## _ops = {		\
+	.read = stats_ ##name## _read,					\
+	.open = simple_open,						\
+	.llseek = generic_file_llseek,					\
+};
+
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+#define DEBUGFS_STATS_ADD(name)					\
+	debugfs_create_u32(#name, 0400, statsd, &local->name);
+#endif
+#define DEBUGFS_DEVSTATS_ADD(name)					\
+	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
+
+DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
+DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
+DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
+DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
+
+void debugfs_hw_add(struct ieee80211_local *local)
+{
+	struct dentry *phyd = local->hw.wiphy->debugfsdir;
+	struct dentry *statsd;
+
+	if (!phyd)
+		return;
+
+	local->debugfs.keys = debugfs_create_dir("keys", phyd);
+
+	DEBUGFS_ADD(total_ps_buffered);
+	DEBUGFS_ADD(wep_iv);
+	DEBUGFS_ADD(rate_ctrl_alg);
+	DEBUGFS_ADD(queues);
+	DEBUGFS_ADD(misc);
+#ifdef CONFIG_PM
+	DEBUGFS_ADD_MODE(reset, 0200);
+#endif
+	DEBUGFS_ADD(hwflags);
+	DEBUGFS_ADD(user_power);
+	DEBUGFS_ADD(power);
+	DEBUGFS_ADD(hw_conf);
+	DEBUGFS_ADD_MODE(force_tx_status, 0600);
+	DEBUGFS_ADD_MODE(aql_enable, 0600);
+	DEBUGFS_ADD(aql_pending);
+	DEBUGFS_ADD_MODE(aqm, 0600);
+
+	DEBUGFS_ADD_MODE(airtime_flags, 0600);
+
+	DEBUGFS_ADD(aql_txq_limit);
+	debugfs_create_u32("aql_threshold", 0600,
+			   phyd, &local->aql_threshold);
+
+	statsd = debugfs_create_dir("statistics", phyd);
+
+	/* if the dir failed, don't put all the other things into the root! */
+	if (!statsd)
+		return;
+
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+	DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
+	DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
+	DEBUGFS_STATS_ADD(dot11FailedCount);
+	DEBUGFS_STATS_ADD(dot11RetryCount);
+	DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
+	DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
+	DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
+	DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
+	DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
+	DEBUGFS_STATS_ADD(tx_handlers_drop);
+	DEBUGFS_STATS_ADD(tx_handlers_queued);
+	DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
+	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
+	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
+	DEBUGFS_STATS_ADD(rx_handlers_drop);
+	DEBUGFS_STATS_ADD(rx_handlers_queued);
+	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
+	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
+	DEBUGFS_STATS_ADD(tx_expand_skb_head);
+	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
+	DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
+	DEBUGFS_STATS_ADD(rx_handlers_fragments);
+	DEBUGFS_STATS_ADD(tx_status_drop);
+#endif
+	DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
+	DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
+	DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
+	DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
+}