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, 391 insertions, 0 deletions

diff --git a/drivers/platform/x86/amd/pmf/cnqf.c b/drivers/platform/x86/amd/pmf/cnqf.c
new file mode 100644
index 000000000..4beb22a19
--- /dev/null
+++ b/drivers/platform/x86/amd/pmf/cnqf.c
@@ -0,0 +1,391 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AMD Platform Management Framework Driver
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+ */
+
+#include <linux/workqueue.h>
+#include "pmf.h"
+
+static struct cnqf_config config_store;
+
+static int amd_pmf_set_cnqf(struct amd_pmf_dev *dev, int src, int idx,
+			    struct cnqf_config *table)
+{
+	struct power_table_control *pc;
+
+	pc = &config_store.mode_set[src][idx].power_control;
+
+	amd_pmf_send_cmd(dev, SET_SPL, false, pc->spl, NULL);
+	amd_pmf_send_cmd(dev, SET_FPPT, false, pc->fppt, NULL);
+	amd_pmf_send_cmd(dev, SET_SPPT, false, pc->sppt, NULL);
+	amd_pmf_send_cmd(dev, SET_SPPT_APU_ONLY, false, pc->sppt_apu_only, NULL);
+	amd_pmf_send_cmd(dev, SET_STT_MIN_LIMIT, false, pc->stt_min, NULL);
+	amd_pmf_send_cmd(dev, SET_STT_LIMIT_APU, false, pc->stt_skin_temp[STT_TEMP_APU],
+			 NULL);
+	amd_pmf_send_cmd(dev, SET_STT_LIMIT_HS2, false, pc->stt_skin_temp[STT_TEMP_HS2],
+			 NULL);
+
+	if (is_apmf_func_supported(dev, APMF_FUNC_SET_FAN_IDX))
+		apmf_update_fan_idx(dev,
+				    config_store.mode_set[src][idx].fan_control.manual,
+				    config_store.mode_set[src][idx].fan_control.fan_id);
+
+	return 0;
+}
+
+static void amd_pmf_update_power_threshold(int src)
+{
+	struct cnqf_mode_settings *ts;
+	struct cnqf_tran_params *tp;
+
+	tp = &config_store.trans_param[src][CNQF_TRANSITION_TO_QUIET];
+	ts = &config_store.mode_set[src][CNQF_MODE_BALANCE];
+	tp->power_threshold = ts->power_floor;
+
+	tp = &config_store.trans_param[src][CNQF_TRANSITION_TO_TURBO];
+	ts = &config_store.mode_set[src][CNQF_MODE_PERFORMANCE];
+	tp->power_threshold = ts->power_floor;
+
+	tp = &config_store.trans_param[src][CNQF_TRANSITION_FROM_BALANCE_TO_PERFORMANCE];
+	ts = &config_store.mode_set[src][CNQF_MODE_BALANCE];
+	tp->power_threshold = ts->power_floor;
+
+	tp = &config_store.trans_param[src][CNQF_TRANSITION_FROM_PERFORMANCE_TO_BALANCE];
+	ts = &config_store.mode_set[src][CNQF_MODE_PERFORMANCE];
+	tp->power_threshold = ts->power_floor;
+
+	tp = &config_store.trans_param[src][CNQF_TRANSITION_FROM_QUIET_TO_BALANCE];
+	ts = &config_store.mode_set[src][CNQF_MODE_QUIET];
+	tp->power_threshold = ts->power_floor;
+
+	tp = &config_store.trans_param[src][CNQF_TRANSITION_FROM_TURBO_TO_PERFORMANCE];
+	ts = &config_store.mode_set[src][CNQF_MODE_TURBO];
+	tp->power_threshold = ts->power_floor;
+}
+
+static const char *state_as_str(unsigned int state)
+{
+	switch (state) {
+	case CNQF_MODE_QUIET:
+		return "QUIET";
+	case CNQF_MODE_BALANCE:
+		return "BALANCED";
+	case CNQF_MODE_TURBO:
+		return "TURBO";
+	case CNQF_MODE_PERFORMANCE:
+		return "PERFORMANCE";
+	default:
+		return "Unknown CnQF mode";
+	}
+}
+
+static int amd_pmf_cnqf_get_power_source(struct amd_pmf_dev *dev)
+{
+	if (is_apmf_func_supported(dev, APMF_FUNC_DYN_SLIDER_AC) &&
+	    is_apmf_func_supported(dev, APMF_FUNC_DYN_SLIDER_DC))
+		return amd_pmf_get_power_source();
+	else if (is_apmf_func_supported(dev, APMF_FUNC_DYN_SLIDER_DC))
+		return POWER_SOURCE_DC;
+	else
+		return POWER_SOURCE_AC;
+}
+
+int amd_pmf_trans_cnqf(struct amd_pmf_dev *dev, int socket_power, ktime_t time_lapsed_ms)
+{
+	struct cnqf_tran_params *tp;
+	int src, i, j;
+	u32 avg_power = 0;
+
+	src = amd_pmf_cnqf_get_power_source(dev);
+
+	if (is_pprof_balanced(dev)) {
+		amd_pmf_set_cnqf(dev, src, config_store.current_mode, NULL);
+	} else {
+		/*
+		 * Return from here if the platform_profile is not balanced
+		 * so that preference is given to user mode selection, rather
+		 * than enforcing CnQF to run all the time (if enabled)
+		 */
+		return -EINVAL;
+	}
+
+	for (i = 0; i < CNQF_TRANSITION_MAX; i++) {
+		config_store.trans_param[src][i].timer += time_lapsed_ms;
+		config_store.trans_param[src][i].total_power += socket_power;
+		config_store.trans_param[src][i].count++;
+
+		tp = &config_store.trans_param[src][i];
+		if (tp->timer >= tp->time_constant && tp->count) {
+			avg_power = tp->total_power / tp->count;
+
+			/* Reset the indices */
+			tp->timer = 0;
+			tp->total_power = 0;
+			tp->count = 0;
+
+			if ((tp->shifting_up && avg_power >= tp->power_threshold) ||
+			    (!tp->shifting_up && avg_power <= tp->power_threshold)) {
+				tp->priority = true;
+			} else {
+				tp->priority = false;
+			}
+		}
+	}
+
+	dev_dbg(dev->dev, "[CNQF] Avg power: %u mW socket power: %u mW mode:%s\n",
+		avg_power, socket_power, state_as_str(config_store.current_mode));
+
+	for (j = 0; j < CNQF_TRANSITION_MAX; j++) {
+		/* apply the highest priority */
+		if (config_store.trans_param[src][j].priority) {
+			if (config_store.current_mode !=
+			    config_store.trans_param[src][j].target_mode) {
+				config_store.current_mode =
+						config_store.trans_param[src][j].target_mode;
+				dev_dbg(dev->dev, "Moving to Mode :%s\n",
+					state_as_str(config_store.current_mode));
+				amd_pmf_set_cnqf(dev, src,
+						 config_store.current_mode, NULL);
+			}
+			break;
+		}
+	}
+	return 0;
+}
+
+static void amd_pmf_update_trans_data(int idx, struct apmf_dyn_slider_output *out)
+{
+	struct cnqf_tran_params *tp;
+
+	tp = &config_store.trans_param[idx][CNQF_TRANSITION_TO_QUIET];
+	tp->time_constant = out->t_balanced_to_quiet;
+	tp->target_mode = CNQF_MODE_QUIET;
+	tp->shifting_up = false;
+
+	tp = &config_store.trans_param[idx][CNQF_TRANSITION_FROM_BALANCE_TO_PERFORMANCE];
+	tp->time_constant = out->t_balanced_to_perf;
+	tp->target_mode = CNQF_MODE_PERFORMANCE;
+	tp->shifting_up = true;
+
+	tp = &config_store.trans_param[idx][CNQF_TRANSITION_FROM_QUIET_TO_BALANCE];
+	tp->time_constant = out->t_quiet_to_balanced;
+	tp->target_mode = CNQF_MODE_BALANCE;
+	tp->shifting_up = true;
+
+	tp = &config_store.trans_param[idx][CNQF_TRANSITION_FROM_PERFORMANCE_TO_BALANCE];
+	tp->time_constant = out->t_perf_to_balanced;
+	tp->target_mode = CNQF_MODE_BALANCE;
+	tp->shifting_up = false;
+
+	tp = &config_store.trans_param[idx][CNQF_TRANSITION_FROM_TURBO_TO_PERFORMANCE];
+	tp->time_constant = out->t_turbo_to_perf;
+	tp->target_mode = CNQF_MODE_PERFORMANCE;
+	tp->shifting_up = false;
+
+	tp = &config_store.trans_param[idx][CNQF_TRANSITION_TO_TURBO];
+	tp->time_constant = out->t_perf_to_turbo;
+	tp->target_mode = CNQF_MODE_TURBO;
+	tp->shifting_up = true;
+}
+
+static void amd_pmf_update_mode_set(int idx, struct apmf_dyn_slider_output *out)
+{
+	struct cnqf_mode_settings *ms;
+
+	/* Quiet Mode */
+	ms = &config_store.mode_set[idx][CNQF_MODE_QUIET];
+	ms->power_floor = out->ps[APMF_CNQF_QUIET].pfloor;
+	ms->power_control.fppt = out->ps[APMF_CNQF_QUIET].fppt;
+	ms->power_control.sppt = out->ps[APMF_CNQF_QUIET].sppt;
+	ms->power_control.sppt_apu_only = out->ps[APMF_CNQF_QUIET].sppt_apu_only;
+	ms->power_control.spl = out->ps[APMF_CNQF_QUIET].spl;
+	ms->power_control.stt_min = out->ps[APMF_CNQF_QUIET].stt_min_limit;
+	ms->power_control.stt_skin_temp[STT_TEMP_APU] =
+		out->ps[APMF_CNQF_QUIET].stt_skintemp[STT_TEMP_APU];
+	ms->power_control.stt_skin_temp[STT_TEMP_HS2] =
+		out->ps[APMF_CNQF_QUIET].stt_skintemp[STT_TEMP_HS2];
+	ms->fan_control.fan_id = out->ps[APMF_CNQF_QUIET].fan_id;
+
+	/* Balance Mode */
+	ms = &config_store.mode_set[idx][CNQF_MODE_BALANCE];
+	ms->power_floor = out->ps[APMF_CNQF_BALANCE].pfloor;
+	ms->power_control.fppt = out->ps[APMF_CNQF_BALANCE].fppt;
+	ms->power_control.sppt = out->ps[APMF_CNQF_BALANCE].sppt;
+	ms->power_control.sppt_apu_only = out->ps[APMF_CNQF_BALANCE].sppt_apu_only;
+	ms->power_control.spl = out->ps[APMF_CNQF_BALANCE].spl;
+	ms->power_control.stt_min = out->ps[APMF_CNQF_BALANCE].stt_min_limit;
+	ms->power_control.stt_skin_temp[STT_TEMP_APU] =
+		out->ps[APMF_CNQF_BALANCE].stt_skintemp[STT_TEMP_APU];
+	ms->power_control.stt_skin_temp[STT_TEMP_HS2] =
+		out->ps[APMF_CNQF_BALANCE].stt_skintemp[STT_TEMP_HS2];
+	ms->fan_control.fan_id = out->ps[APMF_CNQF_BALANCE].fan_id;
+
+	/* Performance Mode */
+	ms = &config_store.mode_set[idx][CNQF_MODE_PERFORMANCE];
+	ms->power_floor = out->ps[APMF_CNQF_PERFORMANCE].pfloor;
+	ms->power_control.fppt = out->ps[APMF_CNQF_PERFORMANCE].fppt;
+	ms->power_control.sppt = out->ps[APMF_CNQF_PERFORMANCE].sppt;
+	ms->power_control.sppt_apu_only = out->ps[APMF_CNQF_PERFORMANCE].sppt_apu_only;
+	ms->power_control.spl = out->ps[APMF_CNQF_PERFORMANCE].spl;
+	ms->power_control.stt_min = out->ps[APMF_CNQF_PERFORMANCE].stt_min_limit;
+	ms->power_control.stt_skin_temp[STT_TEMP_APU] =
+		out->ps[APMF_CNQF_PERFORMANCE].stt_skintemp[STT_TEMP_APU];
+	ms->power_control.stt_skin_temp[STT_TEMP_HS2] =
+		out->ps[APMF_CNQF_PERFORMANCE].stt_skintemp[STT_TEMP_HS2];
+	ms->fan_control.fan_id = out->ps[APMF_CNQF_PERFORMANCE].fan_id;
+
+	/* Turbo Mode */
+	ms = &config_store.mode_set[idx][CNQF_MODE_TURBO];
+	ms->power_floor = out->ps[APMF_CNQF_TURBO].pfloor;
+	ms->power_control.fppt = out->ps[APMF_CNQF_TURBO].fppt;
+	ms->power_control.sppt = out->ps[APMF_CNQF_TURBO].sppt;
+	ms->power_control.sppt_apu_only = out->ps[APMF_CNQF_TURBO].sppt_apu_only;
+	ms->power_control.spl = out->ps[APMF_CNQF_TURBO].spl;
+	ms->power_control.stt_min = out->ps[APMF_CNQF_TURBO].stt_min_limit;
+	ms->power_control.stt_skin_temp[STT_TEMP_APU] =
+		out->ps[APMF_CNQF_TURBO].stt_skintemp[STT_TEMP_APU];
+	ms->power_control.stt_skin_temp[STT_TEMP_HS2] =
+		out->ps[APMF_CNQF_TURBO].stt_skintemp[STT_TEMP_HS2];
+	ms->fan_control.fan_id = out->ps[APMF_CNQF_TURBO].fan_id;
+}
+
+static int amd_pmf_check_flags(struct amd_pmf_dev *dev)
+{
+	struct apmf_dyn_slider_output out = {};
+
+	if (is_apmf_func_supported(dev, APMF_FUNC_DYN_SLIDER_AC))
+		apmf_get_dyn_slider_def_ac(dev, &out);
+	else if (is_apmf_func_supported(dev, APMF_FUNC_DYN_SLIDER_DC))
+		apmf_get_dyn_slider_def_dc(dev, &out);
+
+	return out.flags;
+}
+
+static int amd_pmf_load_defaults_cnqf(struct amd_pmf_dev *dev)
+{
+	struct apmf_dyn_slider_output out;
+	int i, j, ret;
+
+	for (i = 0; i < POWER_SOURCE_MAX; i++) {
+		if (!is_apmf_func_supported(dev, APMF_FUNC_DYN_SLIDER_AC + i))
+			continue;
+
+		if (i == POWER_SOURCE_AC)
+			ret = apmf_get_dyn_slider_def_ac(dev, &out);
+		else
+			ret = apmf_get_dyn_slider_def_dc(dev, &out);
+		if (ret) {
+			dev_err(dev->dev, "APMF apmf_get_dyn_slider_def_dc failed :%d\n", ret);
+			return ret;
+		}
+
+		amd_pmf_update_mode_set(i, &out);
+		amd_pmf_update_trans_data(i, &out);
+		amd_pmf_update_power_threshold(i);
+
+		for (j = 0; j < CNQF_MODE_MAX; j++) {
+			if (config_store.mode_set[i][j].fan_control.fan_id == FAN_INDEX_AUTO)
+				config_store.mode_set[i][j].fan_control.manual = false;
+			else
+				config_store.mode_set[i][j].fan_control.manual = true;
+		}
+	}
+
+	/* set to initial default values */
+	config_store.current_mode = CNQF_MODE_BALANCE;
+
+	return 0;
+}
+
+static ssize_t cnqf_enable_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct amd_pmf_dev *pdev = dev_get_drvdata(dev);
+	int result, src;
+	bool input;
+
+	result = kstrtobool(buf, &input);
+	if (result)
+		return result;
+
+	src = amd_pmf_cnqf_get_power_source(pdev);
+	pdev->cnqf_enabled = input;
+
+	if (pdev->cnqf_enabled && is_pprof_balanced(pdev)) {
+		amd_pmf_set_cnqf(pdev, src, config_store.current_mode, NULL);
+	} else {
+		if (is_apmf_func_supported(pdev, APMF_FUNC_STATIC_SLIDER_GRANULAR))
+			amd_pmf_set_sps_power_limits(pdev);
+	}
+
+	dev_dbg(pdev->dev, "Received CnQF %s\n", input ? "on" : "off");
+	return count;
+}
+
+static ssize_t cnqf_enable_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct amd_pmf_dev *pdev = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%s\n", pdev->cnqf_enabled ? "on" : "off");
+}
+
+static DEVICE_ATTR_RW(cnqf_enable);
+
+static umode_t cnqf_feature_is_visible(struct kobject *kobj,
+				       struct attribute *attr, int n)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct amd_pmf_dev *pdev = dev_get_drvdata(dev);
+
+	return pdev->cnqf_supported ? attr->mode : 0;
+}
+
+static struct attribute *cnqf_feature_attrs[] = {
+	&dev_attr_cnqf_enable.attr,
+	NULL
+};
+
+const struct attribute_group cnqf_feature_attribute_group = {
+	.is_visible = cnqf_feature_is_visible,
+	.attrs = cnqf_feature_attrs,
+};
+
+void amd_pmf_deinit_cnqf(struct amd_pmf_dev *dev)
+{
+	cancel_delayed_work_sync(&dev->work_buffer);
+}
+
+int amd_pmf_init_cnqf(struct amd_pmf_dev *dev)
+{
+	int ret, src;
+
+	/*
+	 * Note the caller of this function has already checked that both
+	 * APMF_FUNC_DYN_SLIDER_AC and APMF_FUNC_DYN_SLIDER_DC are supported.
+	 */
+
+	ret = amd_pmf_load_defaults_cnqf(dev);
+	if (ret < 0)
+		return ret;
+
+	amd_pmf_init_metrics_table(dev);
+
+	dev->cnqf_supported = true;
+	dev->cnqf_enabled = amd_pmf_check_flags(dev);
+
+	/* update the thermal for CnQF */
+	if (dev->cnqf_enabled && is_pprof_balanced(dev)) {
+		src = amd_pmf_cnqf_get_power_source(dev);
+		amd_pmf_set_cnqf(dev, src, config_store.current_mode, NULL);
+	}
+
+	return 0;
+}