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, 387 insertions, 0 deletions

diff --git a/drivers/misc/habanalabs/goya/goya_hwmgr.c b/drivers/misc/habanalabs/goya/goya_hwmgr.c
new file mode 100644
index 000000000..b59572175
--- /dev/null
+++ b/drivers/misc/habanalabs/goya/goya_hwmgr.c
@@ -0,0 +1,387 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2016-2022 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ */
+
+#include "goyaP.h"
+
+void goya_set_pll_profile(struct hl_device *hdev, enum hl_pll_frequency freq)
+{
+	struct goya_device *goya = hdev->asic_specific;
+
+	if (!hdev->pdev)
+		return;
+
+	switch (freq) {
+	case PLL_HIGH:
+		hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, hdev->high_pll);
+		hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, hdev->high_pll);
+		hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, hdev->high_pll);
+		break;
+	case PLL_LOW:
+		hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, GOYA_PLL_FREQ_LOW);
+		hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, GOYA_PLL_FREQ_LOW);
+		hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, GOYA_PLL_FREQ_LOW);
+		break;
+	case PLL_LAST:
+		hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, goya->mme_clk);
+		hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, goya->tpc_clk);
+		hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, goya->ic_clk);
+		break;
+	default:
+		dev_err(hdev->dev, "unknown frequency setting\n");
+	}
+}
+
+static ssize_t mme_clk_show(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_MME_PLL, false);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%lu\n", value);
+}
+
+static ssize_t mme_clk_store(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct goya_device *goya = hdev->asic_specific;
+	int rc;
+	long value;
+
+	if (!hl_device_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto fail;
+	}
+
+	if (goya->pm_mng_profile == PM_AUTO) {
+		count = -EPERM;
+		goto fail;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto fail;
+	}
+
+	hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, value);
+	goya->mme_clk = value;
+
+fail:
+	return count;
+}
+
+static ssize_t tpc_clk_show(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_TPC_PLL, false);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%lu\n", value);
+}
+
+static ssize_t tpc_clk_store(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct goya_device *goya = hdev->asic_specific;
+	int rc;
+	long value;
+
+	if (!hl_device_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto fail;
+	}
+
+	if (goya->pm_mng_profile == PM_AUTO) {
+		count = -EPERM;
+		goto fail;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto fail;
+	}
+
+	hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, value);
+	goya->tpc_clk = value;
+
+fail:
+	return count;
+}
+
+static ssize_t ic_clk_show(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_IC_PLL, false);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%lu\n", value);
+}
+
+static ssize_t ic_clk_store(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct goya_device *goya = hdev->asic_specific;
+	int rc;
+	long value;
+
+	if (!hl_device_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto fail;
+	}
+
+	if (goya->pm_mng_profile == PM_AUTO) {
+		count = -EPERM;
+		goto fail;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto fail;
+	}
+
+	hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, value);
+	goya->ic_clk = value;
+
+fail:
+	return count;
+}
+
+static ssize_t mme_clk_curr_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_MME_PLL, true);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%lu\n", value);
+}
+
+static ssize_t tpc_clk_curr_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_TPC_PLL, true);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%lu\n", value);
+}
+
+static ssize_t ic_clk_curr_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_IC_PLL, true);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%lu\n", value);
+}
+
+static ssize_t pm_mng_profile_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct goya_device *goya = hdev->asic_specific;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	return sprintf(buf, "%s\n",
+			(goya->pm_mng_profile == PM_AUTO) ? "auto" :
+			(goya->pm_mng_profile == PM_MANUAL) ? "manual" :
+			"unknown");
+}
+
+static ssize_t pm_mng_profile_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct goya_device *goya = hdev->asic_specific;
+
+	if (!hl_device_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto out;
+	}
+
+	mutex_lock(&hdev->fpriv_list_lock);
+
+	if (hdev->is_compute_ctx_active) {
+		dev_err(hdev->dev,
+			"Can't change PM profile while compute context is opened on the device\n");
+		count = -EPERM;
+		goto unlock_mutex;
+	}
+
+	if (strncmp("auto", buf, strlen("auto")) == 0) {
+		/* Make sure we are in LOW PLL when changing modes */
+		if (goya->pm_mng_profile == PM_MANUAL) {
+			goya->curr_pll_profile = PLL_HIGH;
+			goya->pm_mng_profile = PM_AUTO;
+			goya_set_frequency(hdev, PLL_LOW);
+		}
+	} else if (strncmp("manual", buf, strlen("manual")) == 0) {
+		if (goya->pm_mng_profile == PM_AUTO) {
+			/* Must release the lock because the work thread also
+			 * takes this lock. But before we release it, set
+			 * the mode to manual so nothing will change if a user
+			 * suddenly opens the device
+			 */
+			goya->pm_mng_profile = PM_MANUAL;
+
+			mutex_unlock(&hdev->fpriv_list_lock);
+
+			/* Flush the current work so we can return to the user
+			 * knowing that he is the only one changing frequencies
+			 */
+			if (goya->goya_work)
+				flush_delayed_work(&goya->goya_work->work_freq);
+
+			return count;
+		}
+	} else {
+		dev_err(hdev->dev, "value should be auto or manual\n");
+		count = -EINVAL;
+	}
+
+unlock_mutex:
+	mutex_unlock(&hdev->fpriv_list_lock);
+out:
+	return count;
+}
+
+static ssize_t high_pll_show(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	return sprintf(buf, "%u\n", hdev->high_pll);
+}
+
+static ssize_t high_pll_store(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	long value;
+	int rc;
+
+	if (!hl_device_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto out;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto out;
+	}
+
+	hdev->high_pll = value;
+
+out:
+	return count;
+}
+
+static DEVICE_ATTR_RW(high_pll);
+static DEVICE_ATTR_RW(ic_clk);
+static DEVICE_ATTR_RO(ic_clk_curr);
+static DEVICE_ATTR_RW(mme_clk);
+static DEVICE_ATTR_RO(mme_clk_curr);
+static DEVICE_ATTR_RW(pm_mng_profile);
+static DEVICE_ATTR_RW(tpc_clk);
+static DEVICE_ATTR_RO(tpc_clk_curr);
+
+static struct attribute *goya_clk_dev_attrs[] = {
+	&dev_attr_high_pll.attr,
+	&dev_attr_ic_clk.attr,
+	&dev_attr_ic_clk_curr.attr,
+	&dev_attr_mme_clk.attr,
+	&dev_attr_mme_clk_curr.attr,
+	&dev_attr_pm_mng_profile.attr,
+	&dev_attr_tpc_clk.attr,
+	&dev_attr_tpc_clk_curr.attr,
+	NULL,
+};
+
+static ssize_t infineon_ver_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct cpucp_info *cpucp_info;
+
+	cpucp_info = &hdev->asic_prop.cpucp_info;
+
+	return sprintf(buf, "%#04x\n", le32_to_cpu(cpucp_info->infineon_version));
+}
+
+static DEVICE_ATTR_RO(infineon_ver);
+
+static struct attribute *goya_vrm_dev_attrs[] = {
+	&dev_attr_infineon_ver.attr,
+	NULL,
+};
+
+void goya_add_device_attr(struct hl_device *hdev, struct attribute_group *dev_clk_attr_grp,
+				struct attribute_group *dev_vrm_attr_grp)
+{
+	dev_clk_attr_grp->attrs = goya_clk_dev_attrs;
+	dev_vrm_attr_grp->attrs = goya_vrm_dev_attrs;
+}