From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/infiniband/hw/hfi1/ipoib_main.c | 264 ++++++++++++++++++++++++++++++++ 1 file changed, 264 insertions(+) create mode 100644 drivers/infiniband/hw/hfi1/ipoib_main.c (limited to 'drivers/infiniband/hw/hfi1/ipoib_main.c') diff --git a/drivers/infiniband/hw/hfi1/ipoib_main.c b/drivers/infiniband/hw/hfi1/ipoib_main.c new file mode 100644 index 000000000..5d814afdf --- /dev/null +++ b/drivers/infiniband/hw/hfi1/ipoib_main.c @@ -0,0 +1,264 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +/* + * Copyright(c) 2020 Intel Corporation. + * + */ + +/* + * This file contains HFI1 support for ipoib functionality + */ + +#include "ipoib.h" +#include "hfi.h" + +static u32 qpn_from_mac(const u8 *mac_arr) +{ + return (u32)mac_arr[1] << 16 | mac_arr[2] << 8 | mac_arr[3]; +} + +static int hfi1_ipoib_dev_init(struct net_device *dev) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + int ret; + + dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!dev->tstats) + return -ENOMEM; + + ret = priv->netdev_ops->ndo_init(dev); + if (ret) + goto out_ret; + + ret = hfi1_netdev_add_data(priv->dd, + qpn_from_mac(priv->netdev->dev_addr), + dev); + if (ret < 0) { + priv->netdev_ops->ndo_uninit(dev); + goto out_ret; + } + + return 0; +out_ret: + free_percpu(dev->tstats); + dev->tstats = NULL; + return ret; +} + +static void hfi1_ipoib_dev_uninit(struct net_device *dev) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + + free_percpu(dev->tstats); + dev->tstats = NULL; + + hfi1_netdev_remove_data(priv->dd, qpn_from_mac(priv->netdev->dev_addr)); + + priv->netdev_ops->ndo_uninit(dev); +} + +static int hfi1_ipoib_dev_open(struct net_device *dev) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + int ret; + + ret = priv->netdev_ops->ndo_open(dev); + if (!ret) { + struct hfi1_ibport *ibp = to_iport(priv->device, + priv->port_num); + struct rvt_qp *qp; + u32 qpn = qpn_from_mac(priv->netdev->dev_addr); + + rcu_read_lock(); + qp = rvt_lookup_qpn(ib_to_rvt(priv->device), &ibp->rvp, qpn); + if (!qp) { + rcu_read_unlock(); + priv->netdev_ops->ndo_stop(dev); + return -EINVAL; + } + rvt_get_qp(qp); + priv->qp = qp; + rcu_read_unlock(); + + hfi1_netdev_enable_queues(priv->dd); + hfi1_ipoib_napi_tx_enable(dev); + } + + return ret; +} + +static int hfi1_ipoib_dev_stop(struct net_device *dev) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + + if (!priv->qp) + return 0; + + hfi1_ipoib_napi_tx_disable(dev); + hfi1_netdev_disable_queues(priv->dd); + + rvt_put_qp(priv->qp); + priv->qp = NULL; + + return priv->netdev_ops->ndo_stop(dev); +} + +static const struct net_device_ops hfi1_ipoib_netdev_ops = { + .ndo_init = hfi1_ipoib_dev_init, + .ndo_uninit = hfi1_ipoib_dev_uninit, + .ndo_open = hfi1_ipoib_dev_open, + .ndo_stop = hfi1_ipoib_dev_stop, + .ndo_get_stats64 = dev_get_tstats64, +}; + +static int hfi1_ipoib_mcast_attach(struct net_device *dev, + struct ib_device *device, + union ib_gid *mgid, + u16 mlid, + int set_qkey, + u32 qkey) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + u32 qpn = (u32)qpn_from_mac(priv->netdev->dev_addr); + struct hfi1_ibport *ibp = to_iport(priv->device, priv->port_num); + struct rvt_qp *qp; + int ret = -EINVAL; + + rcu_read_lock(); + + qp = rvt_lookup_qpn(ib_to_rvt(priv->device), &ibp->rvp, qpn); + if (qp) { + rvt_get_qp(qp); + rcu_read_unlock(); + if (set_qkey) + priv->qkey = qkey; + + /* attach QP to multicast group */ + ret = ib_attach_mcast(&qp->ibqp, mgid, mlid); + rvt_put_qp(qp); + } else { + rcu_read_unlock(); + } + + return ret; +} + +static int hfi1_ipoib_mcast_detach(struct net_device *dev, + struct ib_device *device, + union ib_gid *mgid, + u16 mlid) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + u32 qpn = (u32)qpn_from_mac(priv->netdev->dev_addr); + struct hfi1_ibport *ibp = to_iport(priv->device, priv->port_num); + struct rvt_qp *qp; + int ret = -EINVAL; + + rcu_read_lock(); + + qp = rvt_lookup_qpn(ib_to_rvt(priv->device), &ibp->rvp, qpn); + if (qp) { + rvt_get_qp(qp); + rcu_read_unlock(); + ret = ib_detach_mcast(&qp->ibqp, mgid, mlid); + rvt_put_qp(qp); + } else { + rcu_read_unlock(); + } + return ret; +} + +static void hfi1_ipoib_netdev_dtor(struct net_device *dev) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + + hfi1_ipoib_txreq_deinit(priv); + hfi1_ipoib_rxq_deinit(priv->netdev); + + free_percpu(dev->tstats); + dev->tstats = NULL; +} + +static void hfi1_ipoib_set_id(struct net_device *dev, int id) +{ + struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); + + priv->pkey_index = (u16)id; + ib_query_pkey(priv->device, + priv->port_num, + priv->pkey_index, + &priv->pkey); +} + +static int hfi1_ipoib_setup_rn(struct ib_device *device, + u32 port_num, + struct net_device *netdev, + void *param) +{ + struct hfi1_devdata *dd = dd_from_ibdev(device); + struct rdma_netdev *rn = netdev_priv(netdev); + struct hfi1_ipoib_dev_priv *priv; + int rc; + + rn->send = hfi1_ipoib_send; + rn->tx_timeout = hfi1_ipoib_tx_timeout; + rn->attach_mcast = hfi1_ipoib_mcast_attach; + rn->detach_mcast = hfi1_ipoib_mcast_detach; + rn->set_id = hfi1_ipoib_set_id; + rn->hca = device; + rn->port_num = port_num; + rn->mtu = netdev->mtu; + + priv = hfi1_ipoib_priv(netdev); + priv->dd = dd; + priv->netdev = netdev; + priv->device = device; + priv->port_num = port_num; + priv->netdev_ops = netdev->netdev_ops; + + ib_query_pkey(device, port_num, priv->pkey_index, &priv->pkey); + + rc = hfi1_ipoib_txreq_init(priv); + if (rc) { + dd_dev_err(dd, "IPoIB netdev TX init - failed(%d)\n", rc); + return rc; + } + + rc = hfi1_ipoib_rxq_init(netdev); + if (rc) { + dd_dev_err(dd, "IPoIB netdev RX init - failed(%d)\n", rc); + hfi1_ipoib_txreq_deinit(priv); + return rc; + } + + netdev->netdev_ops = &hfi1_ipoib_netdev_ops; + + netdev->priv_destructor = hfi1_ipoib_netdev_dtor; + netdev->needs_free_netdev = true; + + return 0; +} + +int hfi1_ipoib_rn_get_params(struct ib_device *device, + u32 port_num, + enum rdma_netdev_t type, + struct rdma_netdev_alloc_params *params) +{ + struct hfi1_devdata *dd = dd_from_ibdev(device); + + if (type != RDMA_NETDEV_IPOIB) + return -EOPNOTSUPP; + + if (!HFI1_CAP_IS_KSET(AIP) || !dd->num_netdev_contexts) + return -EOPNOTSUPP; + + if (!port_num || port_num > dd->num_pports) + return -EINVAL; + + params->sizeof_priv = sizeof(struct hfi1_ipoib_rdma_netdev); + params->txqs = dd->num_sdma; + params->rxqs = dd->num_netdev_contexts; + params->param = NULL; + params->initialize_rdma_netdev = hfi1_ipoib_setup_rn; + + return 0; +} -- cgit v1.2.3