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, 292 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
new file mode 100644
index 000000000..bc898ba53
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
@@ -0,0 +1,292 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2014-2019 Intel Corporation
+ */
+
+#ifndef _INTEL_UC_FW_H_
+#define _INTEL_UC_FW_H_
+
+#include <linux/sizes.h>
+#include <linux/types.h>
+#include "intel_uc_fw_abi.h"
+#include "intel_device_info.h"
+#include "i915_gem.h"
+#include "i915_vma.h"
+
+struct drm_printer;
+struct drm_i915_private;
+struct intel_gt;
+
+/* Home of GuC, HuC and DMC firmwares */
+#define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915"
+
+/*
+ * +------------+---------------------------------------------------+
+ * |   PHASE    |           FIRMWARE STATUS TRANSITIONS             |
+ * +============+===================================================+
+ * |            |               UNINITIALIZED                       |
+ * +------------+-               /   |   \                         -+
+ * |            |   DISABLED <--/    |    \--> NOT_SUPPORTED        |
+ * | init_early |                    V                              |
+ * |            |                 SELECTED                          |
+ * +------------+-               /   |   \                         -+
+ * |            |    MISSING <--/    |    \--> ERROR                |
+ * |   fetch    |                    V                              |
+ * |            |                 AVAILABLE                         |
+ * +------------+-                   |   \                         -+
+ * |            |                    |    \--> INIT FAIL            |
+ * |   init     |                    V                              |
+ * |            |        /------> LOADABLE <----<-----------\       |
+ * +------------+-       \         /    \        \           \     -+
+ * |            |    LOAD FAIL <--<      \--> TRANSFERRED     \     |
+ * |   upload   |                  \           /   \          /     |
+ * |            |                   \---------/     \--> RUNNING    |
+ * +------------+---------------------------------------------------+
+ */
+
+enum intel_uc_fw_status {
+	INTEL_UC_FIRMWARE_NOT_SUPPORTED = -1, /* no uc HW */
+	INTEL_UC_FIRMWARE_UNINITIALIZED = 0, /* used to catch checks done too early */
+	INTEL_UC_FIRMWARE_DISABLED, /* disabled */
+	INTEL_UC_FIRMWARE_SELECTED, /* selected the blob we want to load */
+	INTEL_UC_FIRMWARE_MISSING, /* blob not found on the system */
+	INTEL_UC_FIRMWARE_ERROR, /* invalid format or version */
+	INTEL_UC_FIRMWARE_AVAILABLE, /* blob found and copied in mem */
+	INTEL_UC_FIRMWARE_INIT_FAIL, /* failed to prepare fw objects for load */
+	INTEL_UC_FIRMWARE_LOADABLE, /* all fw-required objects are ready */
+	INTEL_UC_FIRMWARE_LOAD_FAIL, /* failed to xfer or init/auth the fw */
+	INTEL_UC_FIRMWARE_TRANSFERRED, /* dma xfer done */
+	INTEL_UC_FIRMWARE_RUNNING /* init/auth done */
+};
+
+enum intel_uc_fw_type {
+	INTEL_UC_FW_TYPE_GUC = 0,
+	INTEL_UC_FW_TYPE_HUC
+};
+#define INTEL_UC_FW_NUM_TYPES 2
+
+/*
+ * The firmware build process will generate a version header file with major and
+ * minor version defined. The versions are built into CSS header of firmware.
+ * i915 kernel driver set the minimal firmware version required per platform.
+ */
+struct intel_uc_fw_file {
+	const char *path;
+	u16 major_ver;
+	u16 minor_ver;
+	u16 patch_ver;
+};
+
+/*
+ * This structure encapsulates all the data needed during the process
+ * of fetching, caching, and loading the firmware image into the uC.
+ */
+struct intel_uc_fw {
+	enum intel_uc_fw_type type;
+	union {
+		const enum intel_uc_fw_status status;
+		enum intel_uc_fw_status __status; /* no accidental overwrites */
+	};
+	struct intel_uc_fw_file file_wanted;
+	struct intel_uc_fw_file file_selected;
+	bool user_overridden;
+	size_t size;
+	struct drm_i915_gem_object *obj;
+
+	/**
+	 * @dummy: A vma used in binding the uc fw to ggtt. We can't define this
+	 * vma on the stack as it can lead to a stack overflow, so we define it
+	 * here. Safe to have 1 copy per uc fw because the binding is single
+	 * threaded as it done during driver load (inherently single threaded)
+	 * or during a GT reset (mutex guarantees single threaded).
+	 */
+	struct i915_vma_resource dummy;
+	struct i915_vma *rsa_data;
+
+	u32 rsa_size;
+	u32 ucode_size;
+	u32 private_data_size;
+
+	bool loaded_via_gsc;
+};
+
+#define MAKE_UC_VER(maj, min, pat)	((pat) | ((min) << 8) | ((maj) << 16))
+#define GET_UC_VER(uc)			(MAKE_UC_VER((uc)->fw.file_selected.major_ver, \
+						     (uc)->fw.file_selected.minor_ver, \
+						     (uc)->fw.file_selected.patch_ver))
+
+/*
+ * When we load the uC binaries, we pin them in a reserved section at the top of
+ * the GGTT, which is ~18 MBs. On multi-GT systems where the GTs share the GGTT,
+ * we also need to make sure that each binary is pinned to a unique location
+ * during load, because the different GT can go through the FW load at the same
+ * time (see uc_fw_ggtt_offset() for details).
+ * Given that the available space is much greater than what is required by the
+ * binaries, to keep things simple instead of dynamically partitioning the
+ * reserved section to make space for all the blobs we can just reserve a static
+ * chunk for each binary.
+ */
+#define INTEL_UC_RSVD_GGTT_PER_FW SZ_2M
+
+#ifdef CONFIG_DRM_I915_DEBUG_GUC
+void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
+			       enum intel_uc_fw_status status);
+#else
+static inline void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
+					     enum intel_uc_fw_status status)
+{
+	uc_fw->__status = status;
+}
+#endif
+
+static inline
+const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
+{
+	switch (status) {
+	case INTEL_UC_FIRMWARE_NOT_SUPPORTED:
+		return "N/A";
+	case INTEL_UC_FIRMWARE_UNINITIALIZED:
+		return "UNINITIALIZED";
+	case INTEL_UC_FIRMWARE_DISABLED:
+		return "DISABLED";
+	case INTEL_UC_FIRMWARE_SELECTED:
+		return "SELECTED";
+	case INTEL_UC_FIRMWARE_MISSING:
+		return "MISSING";
+	case INTEL_UC_FIRMWARE_ERROR:
+		return "ERROR";
+	case INTEL_UC_FIRMWARE_AVAILABLE:
+		return "AVAILABLE";
+	case INTEL_UC_FIRMWARE_INIT_FAIL:
+		return "INIT FAIL";
+	case INTEL_UC_FIRMWARE_LOADABLE:
+		return "LOADABLE";
+	case INTEL_UC_FIRMWARE_LOAD_FAIL:
+		return "LOAD FAIL";
+	case INTEL_UC_FIRMWARE_TRANSFERRED:
+		return "TRANSFERRED";
+	case INTEL_UC_FIRMWARE_RUNNING:
+		return "RUNNING";
+	}
+	return "<invalid>";
+}
+
+static inline int intel_uc_fw_status_to_error(enum intel_uc_fw_status status)
+{
+	switch (status) {
+	case INTEL_UC_FIRMWARE_NOT_SUPPORTED:
+		return -ENODEV;
+	case INTEL_UC_FIRMWARE_UNINITIALIZED:
+		return -EACCES;
+	case INTEL_UC_FIRMWARE_DISABLED:
+		return -EPERM;
+	case INTEL_UC_FIRMWARE_MISSING:
+		return -ENOENT;
+	case INTEL_UC_FIRMWARE_ERROR:
+		return -ENOEXEC;
+	case INTEL_UC_FIRMWARE_INIT_FAIL:
+	case INTEL_UC_FIRMWARE_LOAD_FAIL:
+		return -EIO;
+	case INTEL_UC_FIRMWARE_SELECTED:
+		return -ESTALE;
+	case INTEL_UC_FIRMWARE_AVAILABLE:
+	case INTEL_UC_FIRMWARE_LOADABLE:
+	case INTEL_UC_FIRMWARE_TRANSFERRED:
+	case INTEL_UC_FIRMWARE_RUNNING:
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
+{
+	switch (type) {
+	case INTEL_UC_FW_TYPE_GUC:
+		return "GuC";
+	case INTEL_UC_FW_TYPE_HUC:
+		return "HuC";
+	}
+	return "uC";
+}
+
+static inline enum intel_uc_fw_status
+__intel_uc_fw_status(struct intel_uc_fw *uc_fw)
+{
+	/* shouldn't call this before checking hw/blob availability */
+	GEM_BUG_ON(uc_fw->status == INTEL_UC_FIRMWARE_UNINITIALIZED);
+	return uc_fw->status;
+}
+
+static inline bool intel_uc_fw_is_supported(struct intel_uc_fw *uc_fw)
+{
+	return __intel_uc_fw_status(uc_fw) != INTEL_UC_FIRMWARE_NOT_SUPPORTED;
+}
+
+static inline bool intel_uc_fw_is_enabled(struct intel_uc_fw *uc_fw)
+{
+	return __intel_uc_fw_status(uc_fw) > INTEL_UC_FIRMWARE_DISABLED;
+}
+
+static inline bool intel_uc_fw_is_available(struct intel_uc_fw *uc_fw)
+{
+	return __intel_uc_fw_status(uc_fw) >= INTEL_UC_FIRMWARE_AVAILABLE;
+}
+
+static inline bool intel_uc_fw_is_loadable(struct intel_uc_fw *uc_fw)
+{
+	return __intel_uc_fw_status(uc_fw) >= INTEL_UC_FIRMWARE_LOADABLE;
+}
+
+static inline bool intel_uc_fw_is_loaded(struct intel_uc_fw *uc_fw)
+{
+	return __intel_uc_fw_status(uc_fw) >= INTEL_UC_FIRMWARE_TRANSFERRED;
+}
+
+static inline bool intel_uc_fw_is_running(struct intel_uc_fw *uc_fw)
+{
+	return __intel_uc_fw_status(uc_fw) == INTEL_UC_FIRMWARE_RUNNING;
+}
+
+static inline bool intel_uc_fw_is_overridden(const struct intel_uc_fw *uc_fw)
+{
+	return uc_fw->user_overridden;
+}
+
+static inline void intel_uc_fw_sanitize(struct intel_uc_fw *uc_fw)
+{
+	if (intel_uc_fw_is_loaded(uc_fw))
+		intel_uc_fw_change_status(uc_fw, INTEL_UC_FIRMWARE_LOADABLE);
+}
+
+static inline u32 __intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw)
+{
+	return sizeof(struct uc_css_header) + uc_fw->ucode_size;
+}
+
+/**
+ * intel_uc_fw_get_upload_size() - Get size of firmware needed to be uploaded.
+ * @uc_fw: uC firmware.
+ *
+ * Get the size of the firmware and header that will be uploaded to WOPCM.
+ *
+ * Return: Upload firmware size, or zero on firmware fetch failure.
+ */
+static inline u32 intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw)
+{
+	if (!intel_uc_fw_is_available(uc_fw))
+		return 0;
+
+	return __intel_uc_fw_get_upload_size(uc_fw);
+}
+
+void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw,
+			    enum intel_uc_fw_type type);
+int intel_uc_fw_fetch(struct intel_uc_fw *uc_fw);
+void intel_uc_fw_cleanup_fetch(struct intel_uc_fw *uc_fw);
+int intel_uc_fw_upload(struct intel_uc_fw *uc_fw, u32 offset, u32 dma_flags);
+int intel_uc_fw_init(struct intel_uc_fw *uc_fw);
+void intel_uc_fw_fini(struct intel_uc_fw *uc_fw);
+size_t intel_uc_fw_copy_rsa(struct intel_uc_fw *uc_fw, void *dst, u32 max_len);
+void intel_uc_fw_dump(const struct intel_uc_fw *uc_fw, struct drm_printer *p);
+
+#endif