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/net/ethernet/cisco/enic/enic_pp.c | 353 ++++++++++++++++++++++++++++++ 1 file changed, 353 insertions(+) create mode 100644 drivers/net/ethernet/cisco/enic/enic_pp.c (limited to 'drivers/net/ethernet/cisco/enic/enic_pp.c') diff --git a/drivers/net/ethernet/cisco/enic/enic_pp.c b/drivers/net/ethernet/cisco/enic/enic_pp.c new file mode 100644 index 000000000..4720a9527 --- /dev/null +++ b/drivers/net/ethernet/cisco/enic/enic_pp.c @@ -0,0 +1,353 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright 2011 Cisco Systems, Inc. All rights reserved. + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "vnic_vic.h" +#include "enic_res.h" +#include "enic.h" +#include "enic_dev.h" +#include "enic_pp.h" + +/* + * Checks validity of vf index that came in + * port profile request + */ +int enic_is_valid_pp_vf(struct enic *enic, int vf, int *err) +{ + if (vf != PORT_SELF_VF) { +#ifdef CONFIG_PCI_IOV + if (enic_sriov_enabled(enic)) { + if (vf < 0 || vf >= enic->num_vfs) { + *err = -EINVAL; + goto err_out; + } + } else { + *err = -EOPNOTSUPP; + goto err_out; + } +#else + *err = -EOPNOTSUPP; + goto err_out; +#endif + } + + if (vf == PORT_SELF_VF && !enic_is_dynamic(enic)) { + *err = -EOPNOTSUPP; + goto err_out; + } + + *err = 0; + return 1; + +err_out: + return 0; +} + +static int enic_set_port_profile(struct enic *enic, int vf) +{ + struct net_device *netdev = enic->netdev; + struct enic_port_profile *pp; + struct vic_provinfo *vp; + const u8 oui[3] = VIC_PROVINFO_CISCO_OUI; + const __be16 os_type = htons(VIC_GENERIC_PROV_OS_TYPE_LINUX); + const u8 *client_mac; + char uuid_str[38]; + char client_mac_str[18]; + int err; + + ENIC_PP_BY_INDEX(enic, vf, pp, &err); + if (err) + return err; + + if (!(pp->set & ENIC_SET_NAME) || !strlen(pp->name)) + return -EINVAL; + + vp = vic_provinfo_alloc(GFP_KERNEL, oui, + VIC_PROVINFO_GENERIC_TYPE); + if (!vp) + return -ENOMEM; + + VIC_PROVINFO_ADD_TLV(vp, + VIC_GENERIC_PROV_TLV_PORT_PROFILE_NAME_STR, + strlen(pp->name) + 1, pp->name); + + if (!is_zero_ether_addr(pp->mac_addr)) { + client_mac = pp->mac_addr; + } else if (vf == PORT_SELF_VF) { + client_mac = netdev->dev_addr; + } else { + netdev_err(netdev, "Cannot find pp mac address " + "for VF %d\n", vf); + err = -EINVAL; + goto add_tlv_failure; + } + + VIC_PROVINFO_ADD_TLV(vp, + VIC_GENERIC_PROV_TLV_CLIENT_MAC_ADDR, + ETH_ALEN, client_mac); + + snprintf(client_mac_str, sizeof(client_mac_str), "%pM", client_mac); + VIC_PROVINFO_ADD_TLV(vp, + VIC_GENERIC_PROV_TLV_CLUSTER_PORT_UUID_STR, + sizeof(client_mac_str), client_mac_str); + + if (pp->set & ENIC_SET_INSTANCE) { + sprintf(uuid_str, "%pUB", pp->instance_uuid); + VIC_PROVINFO_ADD_TLV(vp, + VIC_GENERIC_PROV_TLV_CLIENT_UUID_STR, + sizeof(uuid_str), uuid_str); + } + + if (pp->set & ENIC_SET_HOST) { + sprintf(uuid_str, "%pUB", pp->host_uuid); + VIC_PROVINFO_ADD_TLV(vp, + VIC_GENERIC_PROV_TLV_HOST_UUID_STR, + sizeof(uuid_str), uuid_str); + } + + VIC_PROVINFO_ADD_TLV(vp, + VIC_GENERIC_PROV_TLV_OS_TYPE, + sizeof(os_type), &os_type); + + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_init_prov2, (u8 *)vp, + vic_provinfo_size(vp)); + err = enic_dev_status_to_errno(err); + +add_tlv_failure: + vic_provinfo_free(vp); + + return err; +} + +static int enic_unset_port_profile(struct enic *enic, int vf) +{ + int err; + + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_deinit); + if (err) + return enic_dev_status_to_errno(err); + + if (vf == PORT_SELF_VF) + enic_reset_addr_lists(enic); + + return 0; +} + +static int enic_are_pp_different(struct enic_port_profile *pp1, + struct enic_port_profile *pp2) +{ + return strcmp(pp1->name, pp2->name) | !!memcmp(pp1->instance_uuid, + pp2->instance_uuid, PORT_UUID_MAX) | + !!memcmp(pp1->host_uuid, pp2->host_uuid, PORT_UUID_MAX) | + !ether_addr_equal(pp1->mac_addr, pp2->mac_addr); +} + +static int enic_pp_preassociate(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp); +static int enic_pp_disassociate(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp); +static int enic_pp_preassociate_rr(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp); +static int enic_pp_associate(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp); + +static int (*enic_pp_handlers[])(struct enic *enic, int vf, + struct enic_port_profile *prev_state, + int *restore_pp) = { + [PORT_REQUEST_PREASSOCIATE] = enic_pp_preassociate, + [PORT_REQUEST_PREASSOCIATE_RR] = enic_pp_preassociate_rr, + [PORT_REQUEST_ASSOCIATE] = enic_pp_associate, + [PORT_REQUEST_DISASSOCIATE] = enic_pp_disassociate, +}; + +static const int enic_pp_handlers_count = + ARRAY_SIZE(enic_pp_handlers); + +static int enic_pp_preassociate(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp) +{ + return -EOPNOTSUPP; +} + +static int enic_pp_disassociate(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp) +{ + struct net_device *netdev = enic->netdev; + struct enic_port_profile *pp; + int err; + + ENIC_PP_BY_INDEX(enic, vf, pp, &err); + if (err) + return err; + + /* Deregister mac addresses */ + if (!is_zero_ether_addr(pp->mac_addr)) + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr, + pp->mac_addr); + else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr)) + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr, + netdev->dev_addr); + + return enic_unset_port_profile(enic, vf); +} + +static int enic_pp_preassociate_rr(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp) +{ + struct enic_port_profile *pp; + int err; + int active = 0; + + ENIC_PP_BY_INDEX(enic, vf, pp, &err); + if (err) + return err; + + if (pp->request != PORT_REQUEST_ASSOCIATE) { + /* If pre-associate is not part of an associate. + We always disassociate first */ + err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](enic, vf, + prev_pp, restore_pp); + if (err) + return err; + + *restore_pp = 0; + } + + *restore_pp = 0; + + err = enic_set_port_profile(enic, vf); + if (err) + return err; + + /* If pre-associate is not part of an associate. */ + if (pp->request != PORT_REQUEST_ASSOCIATE) { + /* Enable device as standby */ + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2, + active); + err = enic_dev_status_to_errno(err); + } + + return err; +} + +static int enic_pp_associate(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp) +{ + struct net_device *netdev = enic->netdev; + struct enic_port_profile *pp; + int err; + int active = 1; + + ENIC_PP_BY_INDEX(enic, vf, pp, &err); + if (err) + return err; + + /* Check if a pre-associate was called before */ + if (prev_pp->request != PORT_REQUEST_PREASSOCIATE_RR || + (prev_pp->request == PORT_REQUEST_PREASSOCIATE_RR && + enic_are_pp_different(prev_pp, pp))) { + err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE]( + enic, vf, prev_pp, restore_pp); + if (err) + return err; + + *restore_pp = 0; + } + + err = enic_pp_handlers[PORT_REQUEST_PREASSOCIATE_RR]( + enic, vf, prev_pp, restore_pp); + if (err) + return err; + + *restore_pp = 0; + + /* Enable device as active */ + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2, active); + err = enic_dev_status_to_errno(err); + if (err) + return err; + + /* Register mac address */ + if (!is_zero_ether_addr(pp->mac_addr)) + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr, + pp->mac_addr); + else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr)) + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr, + netdev->dev_addr); + + return 0; +} + +int enic_process_set_pp_request(struct enic *enic, int vf, + struct enic_port_profile *prev_pp, int *restore_pp) +{ + struct enic_port_profile *pp; + int err; + + ENIC_PP_BY_INDEX(enic, vf, pp, &err); + if (err) + return err; + + if (pp->request >= enic_pp_handlers_count + || !enic_pp_handlers[pp->request]) + return -EOPNOTSUPP; + + return enic_pp_handlers[pp->request](enic, vf, prev_pp, restore_pp); +} + +int enic_process_get_pp_request(struct enic *enic, int vf, + int request, u16 *response) +{ + int err, status = ERR_SUCCESS; + + switch (request) { + + case PORT_REQUEST_PREASSOCIATE_RR: + case PORT_REQUEST_ASSOCIATE: + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, + vnic_dev_enable2_done, &status); + break; + + case PORT_REQUEST_DISASSOCIATE: + ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, + vnic_dev_deinit_done, &status); + break; + + default: + return -EINVAL; + } + + if (err) + status = err; + + switch (status) { + case ERR_SUCCESS: + *response = PORT_PROFILE_RESPONSE_SUCCESS; + break; + case ERR_EINVAL: + *response = PORT_PROFILE_RESPONSE_INVALID; + break; + case ERR_EBADSTATE: + *response = PORT_PROFILE_RESPONSE_BADSTATE; + break; + case ERR_ENOMEM: + *response = PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES; + break; + case ERR_EINPROGRESS: + *response = PORT_PROFILE_RESPONSE_INPROGRESS; + break; + default: + *response = PORT_PROFILE_RESPONSE_ERROR; + break; + } + + return 0; +} -- cgit v1.2.3