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(). ... --- .../ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c | 473 +++++++++++++++++++++ 1 file changed, 473 insertions(+) create mode 100644 drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c') diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c new file mode 100644 index 000000000..d309b77a0 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c @@ -0,0 +1,473 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */ + +#include +#include +#include +#include + +#include "reg.h" +#include "spectrum.h" +#include "spectrum_nve.h" + +#define MLXSW_SP_NVE_VXLAN_IPV4_SUPPORTED_FLAGS (VXLAN_F_UDP_ZERO_CSUM_TX | \ + VXLAN_F_LEARN) +#define MLXSW_SP_NVE_VXLAN_IPV6_SUPPORTED_FLAGS (VXLAN_F_IPV6 | \ + VXLAN_F_UDP_ZERO_CSUM6_TX | \ + VXLAN_F_UDP_ZERO_CSUM6_RX) + +static bool mlxsw_sp_nve_vxlan_ipv4_flags_check(const struct vxlan_config *cfg, + struct netlink_ext_ack *extack) +{ + if (!(cfg->flags & VXLAN_F_UDP_ZERO_CSUM_TX)) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Zero UDP checksum must be allowed for TX"); + return false; + } + + if (cfg->flags & ~MLXSW_SP_NVE_VXLAN_IPV4_SUPPORTED_FLAGS) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Unsupported flag"); + return false; + } + + return true; +} + +static bool mlxsw_sp_nve_vxlan_ipv6_flags_check(const struct vxlan_config *cfg, + struct netlink_ext_ack *extack) +{ + if (!(cfg->flags & VXLAN_F_UDP_ZERO_CSUM6_TX)) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Zero UDP checksum must be allowed for TX"); + return false; + } + + if (!(cfg->flags & VXLAN_F_UDP_ZERO_CSUM6_RX)) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Zero UDP checksum must be allowed for RX"); + return false; + } + + if (cfg->flags & ~MLXSW_SP_NVE_VXLAN_IPV6_SUPPORTED_FLAGS) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Unsupported flag"); + return false; + } + + return true; +} + +static bool mlxsw_sp_nve_vxlan_can_offload(const struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_params *params, + struct netlink_ext_ack *extack) +{ + struct vxlan_dev *vxlan = netdev_priv(params->dev); + struct vxlan_config *cfg = &vxlan->cfg; + + if (vxlan_addr_multicast(&cfg->remote_ip)) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Multicast destination IP is not supported"); + return false; + } + + if (vxlan_addr_any(&cfg->saddr)) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Source address must be specified"); + return false; + } + + if (cfg->remote_ifindex) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Local interface is not supported"); + return false; + } + + if (cfg->port_min || cfg->port_max) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Only default UDP source port range is supported"); + return false; + } + + if (cfg->tos != 1) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: TOS must be configured to inherit"); + return false; + } + + if (cfg->flags & VXLAN_F_TTL_INHERIT) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: TTL must not be configured to inherit"); + return false; + } + + switch (cfg->saddr.sa.sa_family) { + case AF_INET: + if (!mlxsw_sp_nve_vxlan_ipv4_flags_check(cfg, extack)) + return false; + break; + case AF_INET6: + if (!mlxsw_sp_nve_vxlan_ipv6_flags_check(cfg, extack)) + return false; + break; + } + + if (cfg->ttl == 0) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: TTL must not be configured to 0"); + return false; + } + + if (cfg->label != 0) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: Flow label must be configured to 0"); + return false; + } + + return true; +} + +static bool mlxsw_sp1_nve_vxlan_can_offload(const struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_params *params, + struct netlink_ext_ack *extack) +{ + if (params->ethertype == ETH_P_8021AD) { + NL_SET_ERR_MSG_MOD(extack, "VxLAN: 802.1ad bridge is not supported with VxLAN"); + return false; + } + + return mlxsw_sp_nve_vxlan_can_offload(nve, params, extack); +} + +static void +mlxsw_sp_nve_vxlan_ul_proto_sip_config(const struct vxlan_config *cfg, + struct mlxsw_sp_nve_config *config) +{ + switch (cfg->saddr.sa.sa_family) { + case AF_INET: + config->ul_proto = MLXSW_SP_L3_PROTO_IPV4; + config->ul_sip.addr4 = cfg->saddr.sin.sin_addr.s_addr; + break; + case AF_INET6: + config->ul_proto = MLXSW_SP_L3_PROTO_IPV6; + config->ul_sip.addr6 = cfg->saddr.sin6.sin6_addr; + break; + } +} + +static void mlxsw_sp_nve_vxlan_config(const struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_params *params, + struct mlxsw_sp_nve_config *config) +{ + struct vxlan_dev *vxlan = netdev_priv(params->dev); + struct vxlan_config *cfg = &vxlan->cfg; + + config->type = MLXSW_SP_NVE_TYPE_VXLAN; + config->ttl = cfg->ttl; + config->flowlabel = cfg->label; + config->learning_en = cfg->flags & VXLAN_F_LEARN ? 1 : 0; + config->ul_tb_id = RT_TABLE_MAIN; + mlxsw_sp_nve_vxlan_ul_proto_sip_config(cfg, config); + config->udp_dport = cfg->dst_port; +} + +static void +mlxsw_sp_nve_vxlan_config_prepare(char *tngcr_pl, + const struct mlxsw_sp_nve_config *config) +{ + struct in6_addr addr6; + u8 udp_sport; + + mlxsw_reg_tngcr_pack(tngcr_pl, MLXSW_REG_TNGCR_TYPE_VXLAN, true, + config->ttl); + /* VxLAN driver's default UDP source port range is 32768 (0x8000) + * to 60999 (0xee47). Set the upper 8 bits of the UDP source port + * to a random number between 0x80 and 0xee + */ + get_random_bytes(&udp_sport, sizeof(udp_sport)); + udp_sport = (udp_sport % (0xee - 0x80 + 1)) + 0x80; + mlxsw_reg_tngcr_nve_udp_sport_prefix_set(tngcr_pl, udp_sport); + + switch (config->ul_proto) { + case MLXSW_SP_L3_PROTO_IPV4: + mlxsw_reg_tngcr_usipv4_set(tngcr_pl, + be32_to_cpu(config->ul_sip.addr4)); + break; + case MLXSW_SP_L3_PROTO_IPV6: + addr6 = config->ul_sip.addr6; + mlxsw_reg_tngcr_usipv6_memcpy_to(tngcr_pl, + (const char *)&addr6); + break; + } +} + +static int +mlxsw_sp1_nve_vxlan_config_set(struct mlxsw_sp *mlxsw_sp, + const struct mlxsw_sp_nve_config *config) +{ + char tngcr_pl[MLXSW_REG_TNGCR_LEN]; + u16 ul_vr_id; + int err; + + err = mlxsw_sp_router_tb_id_vr_id(mlxsw_sp, config->ul_tb_id, + &ul_vr_id); + if (err) + return err; + + mlxsw_sp_nve_vxlan_config_prepare(tngcr_pl, config); + mlxsw_reg_tngcr_learn_enable_set(tngcr_pl, config->learning_en); + mlxsw_reg_tngcr_underlay_virtual_router_set(tngcr_pl, ul_vr_id); + + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tngcr), tngcr_pl); +} + +static void mlxsw_sp1_nve_vxlan_config_clear(struct mlxsw_sp *mlxsw_sp) +{ + char tngcr_pl[MLXSW_REG_TNGCR_LEN]; + + mlxsw_reg_tngcr_pack(tngcr_pl, MLXSW_REG_TNGCR_TYPE_VXLAN, false, 0); + + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tngcr), tngcr_pl); +} + +static int mlxsw_sp1_nve_vxlan_rtdp_set(struct mlxsw_sp *mlxsw_sp, + unsigned int tunnel_index) +{ + char rtdp_pl[MLXSW_REG_RTDP_LEN]; + + mlxsw_reg_rtdp_pack(rtdp_pl, MLXSW_REG_RTDP_TYPE_NVE, tunnel_index); + + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rtdp), rtdp_pl); +} + +static int mlxsw_sp1_nve_vxlan_init(struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_config *config) +{ + struct mlxsw_sp *mlxsw_sp = nve->mlxsw_sp; + int err; + + err = mlxsw_sp_parsing_vxlan_udp_dport_set(mlxsw_sp, config->udp_dport); + if (err) + return err; + + err = mlxsw_sp_parsing_depth_inc(mlxsw_sp); + if (err) + goto err_parsing_depth_inc; + + err = mlxsw_sp1_nve_vxlan_config_set(mlxsw_sp, config); + if (err) + goto err_config_set; + + err = mlxsw_sp1_nve_vxlan_rtdp_set(mlxsw_sp, nve->tunnel_index); + if (err) + goto err_rtdp_set; + + err = mlxsw_sp_router_nve_promote_decap(mlxsw_sp, config->ul_tb_id, + config->ul_proto, + &config->ul_sip, + nve->tunnel_index); + if (err) + goto err_promote_decap; + + return 0; + +err_promote_decap: +err_rtdp_set: + mlxsw_sp1_nve_vxlan_config_clear(mlxsw_sp); +err_config_set: + mlxsw_sp_parsing_depth_dec(mlxsw_sp); +err_parsing_depth_inc: + mlxsw_sp_parsing_vxlan_udp_dport_set(mlxsw_sp, 0); + return err; +} + +static void mlxsw_sp1_nve_vxlan_fini(struct mlxsw_sp_nve *nve) +{ + struct mlxsw_sp_nve_config *config = &nve->config; + struct mlxsw_sp *mlxsw_sp = nve->mlxsw_sp; + + mlxsw_sp_router_nve_demote_decap(mlxsw_sp, config->ul_tb_id, + config->ul_proto, &config->ul_sip); + mlxsw_sp1_nve_vxlan_config_clear(mlxsw_sp); + mlxsw_sp_parsing_depth_dec(mlxsw_sp); + mlxsw_sp_parsing_vxlan_udp_dport_set(mlxsw_sp, 0); +} + +static int +mlxsw_sp_nve_vxlan_fdb_replay(const struct net_device *nve_dev, __be32 vni, + struct netlink_ext_ack *extack) +{ + if (WARN_ON(!netif_is_vxlan(nve_dev))) + return -EINVAL; + return vxlan_fdb_replay(nve_dev, vni, &mlxsw_sp_switchdev_notifier, + extack); +} + +static void +mlxsw_sp_nve_vxlan_clear_offload(const struct net_device *nve_dev, __be32 vni) +{ + if (WARN_ON(!netif_is_vxlan(nve_dev))) + return; + vxlan_fdb_clear_offload(nve_dev, vni); +} + +const struct mlxsw_sp_nve_ops mlxsw_sp1_nve_vxlan_ops = { + .type = MLXSW_SP_NVE_TYPE_VXLAN, + .can_offload = mlxsw_sp1_nve_vxlan_can_offload, + .nve_config = mlxsw_sp_nve_vxlan_config, + .init = mlxsw_sp1_nve_vxlan_init, + .fini = mlxsw_sp1_nve_vxlan_fini, + .fdb_replay = mlxsw_sp_nve_vxlan_fdb_replay, + .fdb_clear_offload = mlxsw_sp_nve_vxlan_clear_offload, +}; + +static bool mlxsw_sp2_nve_vxlan_learning_set(struct mlxsw_sp *mlxsw_sp, + bool learning_en) +{ + char tnpc_pl[MLXSW_REG_TNPC_LEN]; + + mlxsw_reg_tnpc_pack(tnpc_pl, MLXSW_REG_TUNNEL_PORT_NVE, + learning_en); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tnpc), tnpc_pl); +} + +static int +mlxsw_sp2_nve_decap_ethertype_set(struct mlxsw_sp *mlxsw_sp) +{ + char spvid_pl[MLXSW_REG_SPVID_LEN] = {}; + + mlxsw_reg_spvid_tport_set(spvid_pl, true); + mlxsw_reg_spvid_local_port_set(spvid_pl, + MLXSW_REG_TUNNEL_PORT_NVE); + mlxsw_reg_spvid_egr_et_set_set(spvid_pl, true); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl); +} + +static int +mlxsw_sp2_nve_vxlan_config_set(struct mlxsw_sp *mlxsw_sp, + const struct mlxsw_sp_nve_config *config) +{ + char tngcr_pl[MLXSW_REG_TNGCR_LEN]; + char spvtr_pl[MLXSW_REG_SPVTR_LEN]; + u16 ul_rif_index; + int err; + + err = mlxsw_sp_router_ul_rif_get(mlxsw_sp, config->ul_tb_id, + &ul_rif_index); + if (err) + return err; + mlxsw_sp->nve->ul_rif_index = ul_rif_index; + + err = mlxsw_sp2_nve_vxlan_learning_set(mlxsw_sp, config->learning_en); + if (err) + goto err_vxlan_learning_set; + + mlxsw_sp_nve_vxlan_config_prepare(tngcr_pl, config); + mlxsw_reg_tngcr_underlay_rif_set(tngcr_pl, ul_rif_index); + + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tngcr), tngcr_pl); + if (err) + goto err_tngcr_write; + + mlxsw_reg_spvtr_pack(spvtr_pl, true, MLXSW_REG_TUNNEL_PORT_NVE, + MLXSW_REG_SPVTR_IPVID_MODE_ALWAYS_PUSH_VLAN); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvtr), spvtr_pl); + if (err) + goto err_spvtr_write; + + err = mlxsw_sp2_nve_decap_ethertype_set(mlxsw_sp); + if (err) + goto err_decap_ethertype_set; + + return 0; + +err_decap_ethertype_set: + mlxsw_reg_spvtr_pack(spvtr_pl, true, MLXSW_REG_TUNNEL_PORT_NVE, + MLXSW_REG_SPVTR_IPVID_MODE_IEEE_COMPLIANT_PVID); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvtr), spvtr_pl); +err_spvtr_write: + mlxsw_reg_tngcr_pack(tngcr_pl, MLXSW_REG_TNGCR_TYPE_VXLAN, false, 0); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tngcr), tngcr_pl); +err_tngcr_write: + mlxsw_sp2_nve_vxlan_learning_set(mlxsw_sp, false); +err_vxlan_learning_set: + mlxsw_sp_router_ul_rif_put(mlxsw_sp, ul_rif_index); + return err; +} + +static void mlxsw_sp2_nve_vxlan_config_clear(struct mlxsw_sp *mlxsw_sp) +{ + char spvtr_pl[MLXSW_REG_SPVTR_LEN]; + char tngcr_pl[MLXSW_REG_TNGCR_LEN]; + + mlxsw_reg_spvtr_pack(spvtr_pl, true, MLXSW_REG_TUNNEL_PORT_NVE, + MLXSW_REG_SPVTR_IPVID_MODE_IEEE_COMPLIANT_PVID); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvtr), spvtr_pl); + mlxsw_reg_tngcr_pack(tngcr_pl, MLXSW_REG_TNGCR_TYPE_VXLAN, false, 0); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tngcr), tngcr_pl); + mlxsw_sp2_nve_vxlan_learning_set(mlxsw_sp, false); + mlxsw_sp_router_ul_rif_put(mlxsw_sp, mlxsw_sp->nve->ul_rif_index); +} + +static int mlxsw_sp2_nve_vxlan_rtdp_set(struct mlxsw_sp *mlxsw_sp, + unsigned int tunnel_index, + u16 ul_rif_index) +{ + char rtdp_pl[MLXSW_REG_RTDP_LEN]; + + mlxsw_reg_rtdp_pack(rtdp_pl, MLXSW_REG_RTDP_TYPE_NVE, tunnel_index); + mlxsw_reg_rtdp_egress_router_interface_set(rtdp_pl, ul_rif_index); + + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rtdp), rtdp_pl); +} + +static int mlxsw_sp2_nve_vxlan_init(struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_config *config) +{ + struct mlxsw_sp *mlxsw_sp = nve->mlxsw_sp; + int err; + + err = mlxsw_sp_parsing_vxlan_udp_dport_set(mlxsw_sp, config->udp_dport); + if (err) + return err; + + err = mlxsw_sp_parsing_depth_inc(mlxsw_sp); + if (err) + goto err_parsing_depth_inc; + + err = mlxsw_sp2_nve_vxlan_config_set(mlxsw_sp, config); + if (err) + goto err_config_set; + + err = mlxsw_sp2_nve_vxlan_rtdp_set(mlxsw_sp, nve->tunnel_index, + nve->ul_rif_index); + if (err) + goto err_rtdp_set; + + err = mlxsw_sp_router_nve_promote_decap(mlxsw_sp, config->ul_tb_id, + config->ul_proto, + &config->ul_sip, + nve->tunnel_index); + if (err) + goto err_promote_decap; + + return 0; + +err_promote_decap: +err_rtdp_set: + mlxsw_sp2_nve_vxlan_config_clear(mlxsw_sp); +err_config_set: + mlxsw_sp_parsing_depth_dec(mlxsw_sp); +err_parsing_depth_inc: + mlxsw_sp_parsing_vxlan_udp_dport_set(mlxsw_sp, 0); + return err; +} + +static void mlxsw_sp2_nve_vxlan_fini(struct mlxsw_sp_nve *nve) +{ + struct mlxsw_sp_nve_config *config = &nve->config; + struct mlxsw_sp *mlxsw_sp = nve->mlxsw_sp; + + mlxsw_sp_router_nve_demote_decap(mlxsw_sp, config->ul_tb_id, + config->ul_proto, &config->ul_sip); + mlxsw_sp2_nve_vxlan_config_clear(mlxsw_sp); + mlxsw_sp_parsing_depth_dec(mlxsw_sp); + mlxsw_sp_parsing_vxlan_udp_dport_set(mlxsw_sp, 0); +} + +const struct mlxsw_sp_nve_ops mlxsw_sp2_nve_vxlan_ops = { + .type = MLXSW_SP_NVE_TYPE_VXLAN, + .can_offload = mlxsw_sp_nve_vxlan_can_offload, + .nve_config = mlxsw_sp_nve_vxlan_config, + .init = mlxsw_sp2_nve_vxlan_init, + .fini = mlxsw_sp2_nve_vxlan_fini, + .fdb_replay = mlxsw_sp_nve_vxlan_fdb_replay, + .fdb_clear_offload = mlxsw_sp_nve_vxlan_clear_offload, +}; -- cgit v1.2.3