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, 217 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/irdma/i40iw_if.c b/drivers/infiniband/hw/irdma/i40iw_if.c
new file mode 100644
index 000000000..4053ead32
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/i40iw_if.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2015 - 2021 Intel Corporation */
+#include "main.h"
+#include "i40iw_hw.h"
+#include <linux/net/intel/i40e_client.h>
+
+static struct i40e_client i40iw_client;
+
+/**
+ * i40iw_l2param_change - handle mss change
+ * @cdev_info: parent lan device information structure with data/ops
+ * @client: client for parameter change
+ * @params: new parameters from L2
+ */
+static void i40iw_l2param_change(struct i40e_info *cdev_info,
+				 struct i40e_client *client,
+				 struct i40e_params *params)
+{
+	struct irdma_l2params l2params = {};
+	struct irdma_device *iwdev;
+	struct ib_device *ibdev;
+
+	ibdev = ib_device_get_by_netdev(cdev_info->netdev, RDMA_DRIVER_IRDMA);
+	if (!ibdev)
+		return;
+
+	iwdev = to_iwdev(ibdev);
+
+	if (iwdev->vsi.mtu != params->mtu) {
+		l2params.mtu_changed = true;
+		l2params.mtu = params->mtu;
+	}
+	irdma_change_l2params(&iwdev->vsi, &l2params);
+	ib_device_put(ibdev);
+}
+
+/**
+ * i40iw_close - client interface operation close for iwarp/uda device
+ * @cdev_info: parent lan device information structure with data/ops
+ * @client: client to close
+ * @reset: flag to indicate close on reset
+ *
+ * Called by the lan driver during the processing of client unregister
+ * Destroy and clean up the driver resources
+ */
+static void i40iw_close(struct i40e_info *cdev_info, struct i40e_client *client,
+			bool reset)
+{
+	struct irdma_device *iwdev;
+	struct ib_device *ibdev;
+
+	ibdev = ib_device_get_by_netdev(cdev_info->netdev, RDMA_DRIVER_IRDMA);
+	if (WARN_ON(!ibdev))
+		return;
+
+	iwdev = to_iwdev(ibdev);
+	if (reset)
+		iwdev->rf->reset = true;
+
+	iwdev->iw_status = 0;
+	irdma_port_ibevent(iwdev);
+	ib_unregister_device_and_put(ibdev);
+	pr_debug("INIT: Gen1 PF[%d] close complete\n", PCI_FUNC(cdev_info->pcidev->devfn));
+}
+
+static void i40iw_request_reset(struct irdma_pci_f *rf)
+{
+	struct i40e_info *cdev_info = rf->cdev;
+
+	cdev_info->ops->request_reset(cdev_info, &i40iw_client, 1);
+}
+
+static void i40iw_fill_device_info(struct irdma_device *iwdev, struct i40e_info *cdev_info)
+{
+	struct irdma_pci_f *rf = iwdev->rf;
+
+	rf->rdma_ver = IRDMA_GEN_1;
+	rf->gen_ops.request_reset = i40iw_request_reset;
+	rf->pcidev = cdev_info->pcidev;
+	rf->pf_id = cdev_info->fid;
+	rf->hw.hw_addr = cdev_info->hw_addr;
+	rf->cdev = cdev_info;
+	rf->msix_count = cdev_info->msix_count;
+	rf->msix_entries = cdev_info->msix_entries;
+	rf->limits_sel = 5;
+	rf->protocol_used = IRDMA_IWARP_PROTOCOL_ONLY;
+	rf->iwdev = iwdev;
+
+	iwdev->init_state = INITIAL_STATE;
+	iwdev->rcv_wnd = IRDMA_CM_DEFAULT_RCV_WND_SCALED;
+	iwdev->rcv_wscale = IRDMA_CM_DEFAULT_RCV_WND_SCALE;
+	iwdev->netdev = cdev_info->netdev;
+	iwdev->vsi_num = 0;
+}
+
+/**
+ * i40iw_open - client interface operation open for iwarp/uda device
+ * @cdev_info: parent lan device information structure with data/ops
+ * @client: iwarp client information, provided during registration
+ *
+ * Called by the lan driver during the processing of client register
+ * Create device resources, set up queues, pble and hmc objects and
+ * register the device with the ib verbs interface
+ * Return 0 if successful, otherwise return error
+ */
+static int i40iw_open(struct i40e_info *cdev_info, struct i40e_client *client)
+{
+	struct irdma_l2params l2params = {};
+	struct irdma_device *iwdev;
+	struct irdma_pci_f *rf;
+	int err = -EIO;
+	int i;
+	u16 qset;
+	u16 last_qset = IRDMA_NO_QSET;
+
+	iwdev = ib_alloc_device(irdma_device, ibdev);
+	if (!iwdev)
+		return -ENOMEM;
+
+	iwdev->rf = kzalloc(sizeof(*rf), GFP_KERNEL);
+	if (!iwdev->rf) {
+		ib_dealloc_device(&iwdev->ibdev);
+		return -ENOMEM;
+	}
+
+	i40iw_fill_device_info(iwdev, cdev_info);
+	rf = iwdev->rf;
+
+	if (irdma_ctrl_init_hw(rf)) {
+		err = -EIO;
+		goto err_ctrl_init;
+	}
+
+	l2params.mtu = (cdev_info->params.mtu) ? cdev_info->params.mtu : IRDMA_DEFAULT_MTU;
+	for (i = 0; i < I40E_CLIENT_MAX_USER_PRIORITY; i++) {
+		qset = cdev_info->params.qos.prio_qos[i].qs_handle;
+		l2params.up2tc[i] = cdev_info->params.qos.prio_qos[i].tc;
+		l2params.qs_handle_list[i] = qset;
+		if (last_qset == IRDMA_NO_QSET)
+			last_qset = qset;
+		else if ((qset != last_qset) && (qset != IRDMA_NO_QSET))
+			iwdev->dcb_vlan_mode = true;
+	}
+
+	if (irdma_rt_init_hw(iwdev, &l2params)) {
+		err = -EIO;
+		goto err_rt_init;
+	}
+
+	err = irdma_ib_register_device(iwdev);
+	if (err)
+		goto err_ibreg;
+
+	ibdev_dbg(&iwdev->ibdev, "INIT: Gen1 PF[%d] open success\n",
+		  PCI_FUNC(rf->pcidev->devfn));
+
+	return 0;
+
+err_ibreg:
+	irdma_rt_deinit_hw(iwdev);
+err_rt_init:
+	irdma_ctrl_deinit_hw(rf);
+err_ctrl_init:
+	kfree(iwdev->rf);
+	ib_dealloc_device(&iwdev->ibdev);
+
+	return err;
+}
+
+/* client interface functions */
+static const struct i40e_client_ops i40e_ops = {
+	.open = i40iw_open,
+	.close = i40iw_close,
+	.l2_param_change = i40iw_l2param_change
+};
+
+static struct i40e_client i40iw_client = {
+	.ops = &i40e_ops,
+	.type = I40E_CLIENT_IWARP,
+};
+
+static int i40iw_probe(struct auxiliary_device *aux_dev, const struct auxiliary_device_id *id)
+{
+	struct i40e_auxiliary_device *i40e_adev = container_of(aux_dev,
+							       struct i40e_auxiliary_device,
+							       aux_dev);
+	struct i40e_info *cdev_info = i40e_adev->ldev;
+
+	strncpy(i40iw_client.name, "irdma", I40E_CLIENT_STR_LENGTH);
+	i40e_client_device_register(cdev_info, &i40iw_client);
+
+	return 0;
+}
+
+static void i40iw_remove(struct auxiliary_device *aux_dev)
+{
+	struct i40e_auxiliary_device *i40e_adev = container_of(aux_dev,
+							       struct i40e_auxiliary_device,
+							       aux_dev);
+	struct i40e_info *cdev_info = i40e_adev->ldev;
+
+	i40e_client_device_unregister(cdev_info);
+}
+
+static const struct auxiliary_device_id i40iw_auxiliary_id_table[] = {
+	{.name = "i40e.iwarp", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(auxiliary, i40iw_auxiliary_id_table);
+
+struct auxiliary_driver i40iw_auxiliary_drv = {
+	.name = "gen_1",
+	.id_table = i40iw_auxiliary_id_table,
+	.probe = i40iw_probe,
+	.remove = i40iw_remove,
+};