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, 326 insertions, 0 deletions

diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c
new file mode 100644
index 000000000..a1d6e08fa
--- /dev/null
+++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c
@@ -0,0 +1,326 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AMD MP2 1.1 communication driver
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/hid.h>
+
+#include "amd_sfh_init.h"
+#include "amd_sfh_interface.h"
+#include "../hid_descriptor/amd_sfh_hid_desc.h"
+
+static int amd_sfh_get_sensor_num(struct amd_mp2_dev *mp2, u8 *sensor_id)
+{
+	struct sfh_sensor_list *slist;
+	struct sfh_base_info binfo;
+	int num_of_sensors = 0;
+	int i;
+
+	memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
+	slist = &binfo.sbase.s_list;
+
+	for (i = 0; i < MAX_IDX; i++) {
+		switch (i) {
+		case ACCEL_IDX:
+		case GYRO_IDX:
+		case MAG_IDX:
+		case ALS_IDX:
+		case HPD_IDX:
+			if (BIT(i) & slist->sl.sensors)
+				sensor_id[num_of_sensors++] = i;
+			break;
+		}
+	}
+
+	return num_of_sensors;
+}
+
+static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
+{
+	if (mp2->mp2_ops->response)
+		return mp2->mp2_ops->response(mp2, sid, cmd_id);
+
+	return 0;
+}
+
+static const char *get_sensor_name(int idx)
+{
+	switch (idx) {
+	case ACCEL_IDX:
+		return "accelerometer";
+	case GYRO_IDX:
+		return "gyroscope";
+	case MAG_IDX:
+		return "magnetometer";
+	case ALS_IDX:
+		return "ALS";
+	case HPD_IDX:
+		return "HPD";
+	default:
+		return "unknown sensor type";
+	}
+}
+
+static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
+{
+	struct amdtp_cl_data *cl_data = privdata->cl_data;
+	int i, status;
+
+	for (i = 0; i < cl_data->num_hid_devices; i++) {
+		if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
+			privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
+			status = amd_sfh_wait_for_response
+					(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
+			if (status == 0)
+				cl_data->sensor_sts[i] = SENSOR_DISABLED;
+			dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
+				cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+				cl_data->sensor_sts[i]);
+		}
+	}
+
+	cancel_delayed_work_sync(&cl_data->work);
+	cancel_delayed_work_sync(&cl_data->work_buffer);
+	amdtp_hid_remove(cl_data);
+
+	return 0;
+}
+
+static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
+{
+	struct amd_input_data *in_data = &privdata->in_data;
+	struct amdtp_cl_data *cl_data = privdata->cl_data;
+	struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
+	struct amd_mp2_sensor_info info;
+	struct request_list *req_list;
+	u32 feature_report_size;
+	u32 input_report_size;
+	struct device *dev;
+	int rc, i, status;
+	u8 cl_idx;
+
+	req_list = &cl_data->req_list;
+	dev = &privdata->pdev->dev;
+	amd_sfh1_1_set_desc_ops(mp2_ops);
+
+	cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
+	if (cl_data->num_hid_devices == 0)
+		return -ENODEV;
+
+	INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
+	INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
+	INIT_LIST_HEAD(&req_list->list);
+	cl_data->in_data = in_data;
+
+	for (i = 0; i < cl_data->num_hid_devices; i++) {
+		cl_data->sensor_sts[i] = SENSOR_DISABLED;
+		cl_data->sensor_requested_cnt[i] = 0;
+		cl_data->cur_hid_dev = i;
+		cl_idx = cl_data->sensor_idx[i];
+
+		cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
+		if (!cl_data->report_descr_sz[i]) {
+			rc = -EINVAL;
+			goto cleanup;
+		}
+		feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
+		if (!feature_report_size) {
+			rc = -EINVAL;
+			goto cleanup;
+		}
+		input_report_size =  mp2_ops->get_desc_sz(cl_idx, input_size);
+		if (!input_report_size) {
+			rc = -EINVAL;
+			goto cleanup;
+		}
+		cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
+		if (!cl_data->feature_report[i]) {
+			rc = -ENOMEM;
+			goto cleanup;
+		}
+		in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
+		if (!in_data->input_report[i]) {
+			rc = -ENOMEM;
+			goto cleanup;
+		}
+
+		info.sensor_idx = cl_idx;
+
+		cl_data->report_descr[i] =
+			devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
+		if (!cl_data->report_descr[i]) {
+			rc = -ENOMEM;
+			goto cleanup;
+		}
+		rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
+		if (rc)
+			goto cleanup;
+
+		writel(0, privdata->mmio + AMD_P2C_MSG(0));
+		mp2_ops->start(privdata, info);
+		status = amd_sfh_wait_for_response
+				(privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);
+
+		status = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED;
+
+		if (status == SENSOR_ENABLED) {
+			cl_data->sensor_sts[i] = SENSOR_ENABLED;
+			rc = amdtp_hid_probe(i, cl_data);
+			if (rc) {
+				mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
+				status = amd_sfh_wait_for_response
+					(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
+				if (status == 0)
+					status = SENSOR_DISABLED;
+				if (status != SENSOR_ENABLED)
+					cl_data->sensor_sts[i] = SENSOR_DISABLED;
+				dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
+					cl_data->sensor_idx[i],
+					get_sensor_name(cl_data->sensor_idx[i]),
+					cl_data->sensor_sts[i]);
+				goto cleanup;
+			}
+		}
+		dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
+			cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+			cl_data->sensor_sts[i]);
+	}
+
+	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
+	return 0;
+
+cleanup:
+	amd_sfh_hid_client_deinit(privdata);
+	for (i = 0; i < cl_data->num_hid_devices; i++) {
+		devm_kfree(dev, cl_data->feature_report[i]);
+		devm_kfree(dev, in_data->input_report[i]);
+		devm_kfree(dev, cl_data->report_descr[i]);
+	}
+	return rc;
+}
+
+static void amd_sfh_resume(struct amd_mp2_dev *mp2)
+{
+	struct amdtp_cl_data *cl_data = mp2->cl_data;
+	struct amd_mp2_sensor_info info;
+	int i, status;
+
+	for (i = 0; i < cl_data->num_hid_devices; i++) {
+		if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
+			info.sensor_idx = cl_data->sensor_idx[i];
+			mp2->mp2_ops->start(mp2, info);
+			status = amd_sfh_wait_for_response
+					(mp2, cl_data->sensor_idx[i], ENABLE_SENSOR);
+			if (status == 0)
+				status = SENSOR_ENABLED;
+			if (status == SENSOR_ENABLED)
+				cl_data->sensor_sts[i] = SENSOR_ENABLED;
+			dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
+				cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+				cl_data->sensor_sts[i]);
+		}
+	}
+
+	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
+	amd_sfh_clear_intr(mp2);
+}
+
+static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
+{
+	struct amdtp_cl_data *cl_data = mp2->cl_data;
+	int i, status;
+
+	for (i = 0; i < cl_data->num_hid_devices; i++) {
+		if (cl_data->sensor_idx[i] != HPD_IDX &&
+		    cl_data->sensor_sts[i] == SENSOR_ENABLED) {
+			mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
+			status = amd_sfh_wait_for_response
+					(mp2, cl_data->sensor_idx[i], DISABLE_SENSOR);
+			if (status == 0)
+				status = SENSOR_DISABLED;
+			if (status != SENSOR_ENABLED)
+				cl_data->sensor_sts[i] = SENSOR_DISABLED;
+			dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
+				cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+				cl_data->sensor_sts[i]);
+		}
+	}
+
+	cancel_delayed_work_sync(&cl_data->work_buffer);
+	amd_sfh_clear_intr(mp2);
+}
+
+static void amd_mp2_pci_remove(void *privdata)
+{
+	struct amd_mp2_dev *mp2 = privdata;
+
+	amd_sfh_hid_client_deinit(privdata);
+	mp2->mp2_ops->stop_all(mp2);
+	pci_intx(mp2->pdev, false);
+	amd_sfh_clear_intr(mp2);
+}
+
+static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
+{
+	struct amd_mp2_ops *mp2_ops;
+
+	sfh_interface_init(mp2);
+	mp2_ops = mp2->mp2_ops;
+	mp2_ops->clear_intr = amd_sfh_clear_intr_v2,
+	mp2_ops->init_intr = amd_sfh_irq_init_v2,
+	mp2_ops->suspend = amd_sfh_suspend;
+	mp2_ops->resume = amd_sfh_resume;
+	mp2_ops->remove = amd_mp2_pci_remove;
+}
+
+int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
+{
+	u32 phy_base = readl(mp2->mmio + AMD_C2P_MSG(22));
+	struct device *dev = &mp2->pdev->dev;
+	struct sfh_base_info binfo;
+	int rc;
+
+	phy_base <<= 21;
+	if (!devm_request_mem_region(dev, phy_base, 128 * 1024, "amd_sfh")) {
+		dev_dbg(dev, "can't reserve mmio registers\n");
+		return -ENOMEM;
+	}
+
+	mp2->vsbase = devm_ioremap(dev, phy_base, 128 * 1024);
+	if (!mp2->vsbase) {
+		dev_dbg(dev, "failed to remap vsbase\n");
+		return -ENOMEM;
+	}
+
+	/* Before accessing give time for SFH firmware for processing configuration */
+	msleep(5000);
+
+	memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
+	if (binfo.sbase.fw_info.fw_ver == 0 || binfo.sbase.s_list.sl.sensors == 0) {
+		dev_dbg(dev, "failed to get sensors\n");
+		return -EOPNOTSUPP;
+	}
+	dev_dbg(dev, "firmware version 0x%x\n", binfo.sbase.fw_info.fw_ver);
+
+	amd_sfh_set_ops(mp2);
+
+	rc = amd_sfh_irq_init(mp2);
+	if (rc) {
+		dev_err(dev, "amd_sfh_irq_init failed\n");
+		return rc;
+	}
+
+	rc = amd_sfh1_1_hid_client_init(mp2);
+	if (rc) {
+		dev_err(dev, "amd_sfh1_1_hid_client_init failed\n");
+		return rc;
+	}
+
+	return rc;
+}