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, 392 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
new file mode 100644
index 000000000..67b0bf310
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
@@ -0,0 +1,392 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2016-2017 Hisilicon Limited.
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+#include "hnae3.h"
+
+static LIST_HEAD(hnae3_ae_algo_list);
+static LIST_HEAD(hnae3_client_list);
+static LIST_HEAD(hnae3_ae_dev_list);
+
+void hnae3_unregister_ae_algo_prepare(struct hnae3_ae_algo *ae_algo)
+{
+	const struct pci_device_id *pci_id;
+	struct hnae3_ae_dev *ae_dev;
+
+	if (!ae_algo)
+		return;
+
+	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
+		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))
+			continue;
+
+		pci_id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
+		if (!pci_id)
+			continue;
+		if (IS_ENABLED(CONFIG_PCI_IOV))
+			pci_disable_sriov(ae_dev->pdev);
+	}
+}
+EXPORT_SYMBOL(hnae3_unregister_ae_algo_prepare);
+
+/* we are keeping things simple and using single lock for all the
+ * list. This is a non-critical code so other updations, if happen
+ * in parallel, can wait.
+ */
+static DEFINE_MUTEX(hnae3_common_lock);
+
+static bool hnae3_client_match(enum hnae3_client_type client_type)
+{
+	if (client_type == HNAE3_CLIENT_KNIC ||
+	    client_type == HNAE3_CLIENT_ROCE)
+		return true;
+
+	return false;
+}
+
+void hnae3_set_client_init_flag(struct hnae3_client *client,
+				struct hnae3_ae_dev *ae_dev,
+				unsigned int inited)
+{
+	if (!client || !ae_dev)
+		return;
+
+	switch (client->type) {
+	case HNAE3_CLIENT_KNIC:
+		hnae3_set_bit(ae_dev->flag, HNAE3_KNIC_CLIENT_INITED_B, inited);
+		break;
+	case HNAE3_CLIENT_ROCE:
+		hnae3_set_bit(ae_dev->flag, HNAE3_ROCE_CLIENT_INITED_B, inited);
+		break;
+	default:
+		break;
+	}
+}
+EXPORT_SYMBOL(hnae3_set_client_init_flag);
+
+static int hnae3_get_client_init_flag(struct hnae3_client *client,
+				      struct hnae3_ae_dev *ae_dev)
+{
+	int inited = 0;
+
+	switch (client->type) {
+	case HNAE3_CLIENT_KNIC:
+		inited = hnae3_get_bit(ae_dev->flag,
+				       HNAE3_KNIC_CLIENT_INITED_B);
+		break;
+	case HNAE3_CLIENT_ROCE:
+		inited = hnae3_get_bit(ae_dev->flag,
+				       HNAE3_ROCE_CLIENT_INITED_B);
+		break;
+	default:
+		break;
+	}
+
+	return inited;
+}
+
+static int hnae3_init_client_instance(struct hnae3_client *client,
+				      struct hnae3_ae_dev *ae_dev)
+{
+	int ret;
+
+	/* check if this client matches the type of ae_dev */
+	if (!(hnae3_client_match(client->type) &&
+	      hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))) {
+		return 0;
+	}
+
+	ret = ae_dev->ops->init_client_instance(client, ae_dev);
+	if (ret)
+		dev_err(&ae_dev->pdev->dev,
+			"fail to instantiate client, ret = %d\n", ret);
+
+	return ret;
+}
+
+static void hnae3_uninit_client_instance(struct hnae3_client *client,
+					 struct hnae3_ae_dev *ae_dev)
+{
+	/* check if this client matches the type of ae_dev */
+	if (!(hnae3_client_match(client->type) &&
+	      hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B)))
+		return;
+
+	if (hnae3_get_client_init_flag(client, ae_dev)) {
+		ae_dev->ops->uninit_client_instance(client, ae_dev);
+
+		hnae3_set_client_init_flag(client, ae_dev, 0);
+	}
+}
+
+int hnae3_register_client(struct hnae3_client *client)
+{
+	struct hnae3_client *client_tmp;
+	struct hnae3_ae_dev *ae_dev;
+
+	if (!client)
+		return -ENODEV;
+
+	mutex_lock(&hnae3_common_lock);
+	/* one system should only have one client for every type */
+	list_for_each_entry(client_tmp, &hnae3_client_list, node) {
+		if (client_tmp->type == client->type)
+			goto exit;
+	}
+
+	list_add_tail(&client->node, &hnae3_client_list);
+
+	/* initialize the client on every matched port */
+	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
+		/* if the client could not be initialized on current port, for
+		 * any error reasons, move on to next available port
+		 */
+		int ret = hnae3_init_client_instance(client, ae_dev);
+		if (ret)
+			dev_err(&ae_dev->pdev->dev,
+				"match and instantiation failed for port, ret = %d\n",
+				ret);
+	}
+
+exit:
+	mutex_unlock(&hnae3_common_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(hnae3_register_client);
+
+void hnae3_unregister_client(struct hnae3_client *client)
+{
+	struct hnae3_client *client_tmp;
+	struct hnae3_ae_dev *ae_dev;
+	bool existed = false;
+
+	if (!client)
+		return;
+
+	mutex_lock(&hnae3_common_lock);
+	/* one system should only have one client for every type */
+	list_for_each_entry(client_tmp, &hnae3_client_list, node) {
+		if (client_tmp->type == client->type) {
+			existed = true;
+			break;
+		}
+	}
+
+	if (!existed) {
+		mutex_unlock(&hnae3_common_lock);
+		pr_err("client %s does not exist!\n", client->name);
+		return;
+	}
+
+	/* un-initialize the client on every matched port */
+	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
+		hnae3_uninit_client_instance(client, ae_dev);
+	}
+
+	list_del(&client->node);
+	mutex_unlock(&hnae3_common_lock);
+}
+EXPORT_SYMBOL(hnae3_unregister_client);
+
+/* hnae3_register_ae_algo - register a AE algorithm to hnae3 framework
+ * @ae_algo: AE algorithm
+ * NOTE: the duplicated name will not be checked
+ */
+void hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo)
+{
+	const struct pci_device_id *id;
+	struct hnae3_ae_dev *ae_dev;
+	struct hnae3_client *client;
+	int ret;
+
+	if (!ae_algo)
+		return;
+
+	mutex_lock(&hnae3_common_lock);
+
+	list_add_tail(&ae_algo->node, &hnae3_ae_algo_list);
+
+	/* Check if this algo/ops matches the list of ae_devs */
+	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
+		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
+		if (!id)
+			continue;
+
+		if (!ae_algo->ops) {
+			dev_err(&ae_dev->pdev->dev, "ae_algo ops are null\n");
+			continue;
+		}
+		ae_dev->ops = ae_algo->ops;
+
+		ret = ae_algo->ops->init_ae_dev(ae_dev);
+		if (ret) {
+			dev_err(&ae_dev->pdev->dev,
+				"init ae_dev error, ret = %d\n", ret);
+			continue;
+		}
+
+		/* ae_dev init should set flag */
+		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);
+
+		/* check the client list for the match with this ae_dev type and
+		 * initialize the figure out client instance
+		 */
+		list_for_each_entry(client, &hnae3_client_list, node) {
+			ret = hnae3_init_client_instance(client, ae_dev);
+			if (ret)
+				dev_err(&ae_dev->pdev->dev,
+					"match and instantiation failed, ret = %d\n",
+					ret);
+		}
+	}
+
+	mutex_unlock(&hnae3_common_lock);
+}
+EXPORT_SYMBOL(hnae3_register_ae_algo);
+
+/* hnae3_unregister_ae_algo - unregisters a AE algorithm
+ * @ae_algo: the AE algorithm to unregister
+ */
+void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo)
+{
+	const struct pci_device_id *id;
+	struct hnae3_ae_dev *ae_dev;
+	struct hnae3_client *client;
+
+	if (!ae_algo)
+		return;
+
+	mutex_lock(&hnae3_common_lock);
+	/* Check if there are matched ae_dev */
+	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
+		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))
+			continue;
+
+		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
+		if (!id)
+			continue;
+
+		/* check the client list for the match with this ae_dev type and
+		 * un-initialize the figure out client instance
+		 */
+		list_for_each_entry(client, &hnae3_client_list, node)
+			hnae3_uninit_client_instance(client, ae_dev);
+
+		ae_algo->ops->uninit_ae_dev(ae_dev);
+		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
+		ae_dev->ops = NULL;
+	}
+
+	list_del(&ae_algo->node);
+	mutex_unlock(&hnae3_common_lock);
+}
+EXPORT_SYMBOL(hnae3_unregister_ae_algo);
+
+/* hnae3_register_ae_dev - registers a AE device to hnae3 framework
+ * @ae_dev: the AE device
+ * NOTE: the duplicated name will not be checked
+ */
+int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev)
+{
+	const struct pci_device_id *id;
+	struct hnae3_ae_algo *ae_algo;
+	struct hnae3_client *client;
+	int ret;
+
+	if (!ae_dev)
+		return -ENODEV;
+
+	mutex_lock(&hnae3_common_lock);
+
+	list_add_tail(&ae_dev->node, &hnae3_ae_dev_list);
+
+	/* Check if there are matched ae_algo */
+	list_for_each_entry(ae_algo, &hnae3_ae_algo_list, node) {
+		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
+		if (!id)
+			continue;
+
+		if (!ae_algo->ops) {
+			dev_err(&ae_dev->pdev->dev, "ae_algo ops are null\n");
+			ret = -EOPNOTSUPP;
+			goto out_err;
+		}
+		ae_dev->ops = ae_algo->ops;
+
+		ret = ae_dev->ops->init_ae_dev(ae_dev);
+		if (ret) {
+			dev_err(&ae_dev->pdev->dev,
+				"init ae_dev error, ret = %d\n", ret);
+			goto out_err;
+		}
+
+		/* ae_dev init should set flag */
+		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);
+		break;
+	}
+
+	/* check the client list for the match with this ae_dev type and
+	 * initialize the figure out client instance
+	 */
+	list_for_each_entry(client, &hnae3_client_list, node) {
+		ret = hnae3_init_client_instance(client, ae_dev);
+		if (ret)
+			dev_err(&ae_dev->pdev->dev,
+				"match and instantiation failed, ret = %d\n",
+				ret);
+	}
+
+	mutex_unlock(&hnae3_common_lock);
+
+	return 0;
+
+out_err:
+	list_del(&ae_dev->node);
+	mutex_unlock(&hnae3_common_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(hnae3_register_ae_dev);
+
+/* hnae3_unregister_ae_dev - unregisters a AE device
+ * @ae_dev: the AE device to unregister
+ */
+void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev)
+{
+	const struct pci_device_id *id;
+	struct hnae3_ae_algo *ae_algo;
+	struct hnae3_client *client;
+
+	if (!ae_dev)
+		return;
+
+	mutex_lock(&hnae3_common_lock);
+	/* Check if there are matched ae_algo */
+	list_for_each_entry(ae_algo, &hnae3_ae_algo_list, node) {
+		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))
+			continue;
+
+		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
+		if (!id)
+			continue;
+
+		list_for_each_entry(client, &hnae3_client_list, node)
+			hnae3_uninit_client_instance(client, ae_dev);
+
+		ae_algo->ops->uninit_ae_dev(ae_dev);
+		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
+		ae_dev->ops = NULL;
+	}
+
+	list_del(&ae_dev->node);
+	mutex_unlock(&hnae3_common_lock);
+}
+EXPORT_SYMBOL(hnae3_unregister_ae_dev);
+
+MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HNAE3(Hisilicon Network Acceleration Engine) Framework");
+MODULE_VERSION(HNAE3_MOD_VERSION);