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(). ... --- .../net/ethernet/microchip/lan966x/lan966x_mdb.c | 551 +++++++++++++++++++++ 1 file changed, 551 insertions(+) create mode 100644 drivers/net/ethernet/microchip/lan966x/lan966x_mdb.c (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_mdb.c') diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_mdb.c b/drivers/net/ethernet/microchip/lan966x/lan966x_mdb.c new file mode 100644 index 000000000..2af55268b --- /dev/null +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_mdb.c @@ -0,0 +1,551 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include + +#include "lan966x_main.h" + +struct lan966x_pgid_entry { + struct list_head list; + int index; + refcount_t refcount; + u16 ports; +}; + +struct lan966x_mdb_entry { + struct list_head list; + unsigned char mac[ETH_ALEN]; + u16 vid; + u16 ports; + struct lan966x_pgid_entry *pgid; + u8 cpu_copy; +}; + +void lan966x_mdb_init(struct lan966x *lan966x) +{ + INIT_LIST_HEAD(&lan966x->mdb_entries); + INIT_LIST_HEAD(&lan966x->pgid_entries); +} + +static void lan966x_mdb_purge_mdb_entries(struct lan966x *lan966x) +{ + struct lan966x_mdb_entry *mdb_entry, *tmp; + + list_for_each_entry_safe(mdb_entry, tmp, &lan966x->mdb_entries, list) { + list_del(&mdb_entry->list); + kfree(mdb_entry); + } +} + +static void lan966x_mdb_purge_pgid_entries(struct lan966x *lan966x) +{ + struct lan966x_pgid_entry *pgid_entry, *tmp; + + list_for_each_entry_safe(pgid_entry, tmp, &lan966x->pgid_entries, list) { + list_del(&pgid_entry->list); + kfree(pgid_entry); + } +} + +void lan966x_mdb_deinit(struct lan966x *lan966x) +{ + lan966x_mdb_purge_mdb_entries(lan966x); + lan966x_mdb_purge_pgid_entries(lan966x); +} + +static struct lan966x_mdb_entry * +lan966x_mdb_entry_get(struct lan966x *lan966x, + const unsigned char *mac, + u16 vid) +{ + struct lan966x_mdb_entry *mdb_entry; + + list_for_each_entry(mdb_entry, &lan966x->mdb_entries, list) { + if (ether_addr_equal(mdb_entry->mac, mac) && + mdb_entry->vid == vid) + return mdb_entry; + } + + return NULL; +} + +static struct lan966x_mdb_entry * +lan966x_mdb_entry_add(struct lan966x *lan966x, + const struct switchdev_obj_port_mdb *mdb) +{ + struct lan966x_mdb_entry *mdb_entry; + + mdb_entry = kzalloc(sizeof(*mdb_entry), GFP_KERNEL); + if (!mdb_entry) + return ERR_PTR(-ENOMEM); + + ether_addr_copy(mdb_entry->mac, mdb->addr); + mdb_entry->vid = mdb->vid; + + list_add_tail(&mdb_entry->list, &lan966x->mdb_entries); + + return mdb_entry; +} + +static void lan966x_mdb_encode_mac(unsigned char *mac, + struct lan966x_mdb_entry *mdb_entry, + enum macaccess_entry_type type) +{ + ether_addr_copy(mac, mdb_entry->mac); + + if (type == ENTRYTYPE_MACV4) { + mac[0] = 0; + mac[1] = mdb_entry->ports >> 8; + mac[2] = mdb_entry->ports & 0xff; + } else if (type == ENTRYTYPE_MACV6) { + mac[0] = mdb_entry->ports >> 8; + mac[1] = mdb_entry->ports & 0xff; + } +} + +static int lan966x_mdb_ip_add(struct lan966x_port *port, + const struct switchdev_obj_port_mdb *mdb, + enum macaccess_entry_type type) +{ + bool cpu_port = netif_is_bridge_master(mdb->obj.orig_dev); + struct lan966x *lan966x = port->lan966x; + struct lan966x_mdb_entry *mdb_entry; + unsigned char mac[ETH_ALEN]; + bool cpu_copy = false; + + mdb_entry = lan966x_mdb_entry_get(lan966x, mdb->addr, mdb->vid); + if (!mdb_entry) { + mdb_entry = lan966x_mdb_entry_add(lan966x, mdb); + if (IS_ERR(mdb_entry)) + return PTR_ERR(mdb_entry); + } else { + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + } + + if (cpu_port) + mdb_entry->cpu_copy++; + else + mdb_entry->ports |= BIT(port->chip_port); + + /* Copy the frame to CPU only if the CPU is in the VLAN */ + if (lan966x_vlan_cpu_member_cpu_vlan_mask(lan966x, mdb_entry->vid) && + mdb_entry->cpu_copy) + cpu_copy = true; + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + return lan966x_mac_ip_learn(lan966x, cpu_copy, + mac, mdb_entry->vid, type); +} + +static int lan966x_mdb_ip_del(struct lan966x_port *port, + const struct switchdev_obj_port_mdb *mdb, + enum macaccess_entry_type type) +{ + bool cpu_port = netif_is_bridge_master(mdb->obj.orig_dev); + struct lan966x *lan966x = port->lan966x; + struct lan966x_mdb_entry *mdb_entry; + unsigned char mac[ETH_ALEN]; + u16 ports; + + mdb_entry = lan966x_mdb_entry_get(lan966x, mdb->addr, mdb->vid); + if (!mdb_entry) + return -ENOENT; + + ports = mdb_entry->ports; + if (cpu_port) { + /* If there are still other references to the CPU port then + * there is no point to delete and add again the same entry + */ + mdb_entry->cpu_copy--; + if (mdb_entry->cpu_copy) + return 0; + } else { + ports &= ~BIT(port->chip_port); + } + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + + mdb_entry->ports = ports; + + if (!mdb_entry->ports && !mdb_entry->cpu_copy) { + list_del(&mdb_entry->list); + kfree(mdb_entry); + return 0; + } + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + return lan966x_mac_ip_learn(lan966x, mdb_entry->cpu_copy, + mac, mdb_entry->vid, type); +} + +static struct lan966x_pgid_entry * +lan966x_pgid_entry_add(struct lan966x *lan966x, int index, u16 ports) +{ + struct lan966x_pgid_entry *pgid_entry; + + pgid_entry = kzalloc(sizeof(*pgid_entry), GFP_KERNEL); + if (!pgid_entry) + return ERR_PTR(-ENOMEM); + + pgid_entry->ports = ports; + pgid_entry->index = index; + refcount_set(&pgid_entry->refcount, 1); + + list_add_tail(&pgid_entry->list, &lan966x->pgid_entries); + + return pgid_entry; +} + +static struct lan966x_pgid_entry * +lan966x_pgid_entry_get(struct lan966x *lan966x, + struct lan966x_mdb_entry *mdb_entry) +{ + struct lan966x_pgid_entry *pgid_entry; + int index; + + /* Try to find an existing pgid that uses the same ports as the + * mdb_entry + */ + list_for_each_entry(pgid_entry, &lan966x->pgid_entries, list) { + if (pgid_entry->ports == mdb_entry->ports) { + refcount_inc(&pgid_entry->refcount); + return pgid_entry; + } + } + + /* Try to find an empty pgid entry and allocate one in case it finds it, + * otherwise it means that there are no more resources + */ + for (index = PGID_GP_START; index < PGID_GP_END; index++) { + bool used = false; + + list_for_each_entry(pgid_entry, &lan966x->pgid_entries, list) { + if (pgid_entry->index == index) { + used = true; + break; + } + } + + if (!used) + return lan966x_pgid_entry_add(lan966x, index, + mdb_entry->ports); + } + + return ERR_PTR(-ENOSPC); +} + +static void lan966x_pgid_entry_del(struct lan966x *lan966x, + struct lan966x_pgid_entry *pgid_entry) +{ + if (!refcount_dec_and_test(&pgid_entry->refcount)) + return; + + list_del(&pgid_entry->list); + kfree(pgid_entry); +} + +static int lan966x_mdb_l2_add(struct lan966x_port *port, + const struct switchdev_obj_port_mdb *mdb, + enum macaccess_entry_type type) +{ + bool cpu_port = netif_is_bridge_master(mdb->obj.orig_dev); + struct lan966x *lan966x = port->lan966x; + struct lan966x_pgid_entry *pgid_entry; + struct lan966x_mdb_entry *mdb_entry; + unsigned char mac[ETH_ALEN]; + + mdb_entry = lan966x_mdb_entry_get(lan966x, mdb->addr, mdb->vid); + if (!mdb_entry) { + mdb_entry = lan966x_mdb_entry_add(lan966x, mdb); + if (IS_ERR(mdb_entry)) + return PTR_ERR(mdb_entry); + } else { + lan966x_pgid_entry_del(lan966x, mdb_entry->pgid); + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + } + + if (cpu_port) { + mdb_entry->ports |= BIT(CPU_PORT); + mdb_entry->cpu_copy++; + } else { + mdb_entry->ports |= BIT(port->chip_port); + } + + pgid_entry = lan966x_pgid_entry_get(lan966x, mdb_entry); + if (IS_ERR(pgid_entry)) { + list_del(&mdb_entry->list); + kfree(mdb_entry); + return PTR_ERR(pgid_entry); + } + mdb_entry->pgid = pgid_entry; + + /* Copy the frame to CPU only if the CPU is in the VLAN */ + if (!lan966x_vlan_cpu_member_cpu_vlan_mask(lan966x, mdb_entry->vid) && + mdb_entry->cpu_copy) + mdb_entry->ports &= BIT(CPU_PORT); + + lan_rmw(ANA_PGID_PGID_SET(mdb_entry->ports), + ANA_PGID_PGID, + lan966x, ANA_PGID(pgid_entry->index)); + + return lan966x_mac_learn(lan966x, pgid_entry->index, mdb_entry->mac, + mdb_entry->vid, type); +} + +static int lan966x_mdb_l2_del(struct lan966x_port *port, + const struct switchdev_obj_port_mdb *mdb, + enum macaccess_entry_type type) +{ + bool cpu_port = netif_is_bridge_master(mdb->obj.orig_dev); + struct lan966x *lan966x = port->lan966x; + struct lan966x_pgid_entry *pgid_entry; + struct lan966x_mdb_entry *mdb_entry; + unsigned char mac[ETH_ALEN]; + u16 ports; + + mdb_entry = lan966x_mdb_entry_get(lan966x, mdb->addr, mdb->vid); + if (!mdb_entry) + return -ENOENT; + + ports = mdb_entry->ports; + if (cpu_port) { + /* If there are still other references to the CPU port then + * there is no point to delete and add again the same entry + */ + mdb_entry->cpu_copy--; + if (mdb_entry->cpu_copy) + return 0; + + ports &= ~BIT(CPU_PORT); + } else { + ports &= ~BIT(port->chip_port); + } + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + lan966x_pgid_entry_del(lan966x, mdb_entry->pgid); + + mdb_entry->ports = ports; + + if (!mdb_entry->ports) { + list_del(&mdb_entry->list); + kfree(mdb_entry); + return 0; + } + + pgid_entry = lan966x_pgid_entry_get(lan966x, mdb_entry); + if (IS_ERR(pgid_entry)) { + list_del(&mdb_entry->list); + kfree(mdb_entry); + return PTR_ERR(pgid_entry); + } + mdb_entry->pgid = pgid_entry; + + lan_rmw(ANA_PGID_PGID_SET(mdb_entry->ports), + ANA_PGID_PGID, + lan966x, ANA_PGID(pgid_entry->index)); + + return lan966x_mac_learn(lan966x, pgid_entry->index, mdb_entry->mac, + mdb_entry->vid, type); +} + +static enum macaccess_entry_type +lan966x_mdb_classify(const unsigned char *mac) +{ + if (mac[0] == 0x01 && mac[1] == 0x00 && mac[2] == 0x5e) + return ENTRYTYPE_MACV4; + if (mac[0] == 0x33 && mac[1] == 0x33) + return ENTRYTYPE_MACV6; + return ENTRYTYPE_LOCKED; +} + +int lan966x_handle_port_mdb_add(struct lan966x_port *port, + const struct switchdev_obj *obj) +{ + const struct switchdev_obj_port_mdb *mdb = SWITCHDEV_OBJ_PORT_MDB(obj); + enum macaccess_entry_type type; + + /* Split the way the entries are added for ipv4/ipv6 and for l2. The + * reason is that for ipv4/ipv6 it doesn't require to use any pgid + * entry, while for l2 is required to use pgid entries + */ + type = lan966x_mdb_classify(mdb->addr); + if (type == ENTRYTYPE_MACV4 || type == ENTRYTYPE_MACV6) + return lan966x_mdb_ip_add(port, mdb, type); + + return lan966x_mdb_l2_add(port, mdb, type); +} + +int lan966x_handle_port_mdb_del(struct lan966x_port *port, + const struct switchdev_obj *obj) +{ + const struct switchdev_obj_port_mdb *mdb = SWITCHDEV_OBJ_PORT_MDB(obj); + enum macaccess_entry_type type; + + /* Split the way the entries are removed for ipv4/ipv6 and for l2. The + * reason is that for ipv4/ipv6 it doesn't require to use any pgid + * entry, while for l2 is required to use pgid entries + */ + type = lan966x_mdb_classify(mdb->addr); + if (type == ENTRYTYPE_MACV4 || type == ENTRYTYPE_MACV6) + return lan966x_mdb_ip_del(port, mdb, type); + + return lan966x_mdb_l2_del(port, mdb, type); +} + +static void lan966x_mdb_ip_cpu_copy(struct lan966x *lan966x, + struct lan966x_mdb_entry *mdb_entry, + enum macaccess_entry_type type) +{ + unsigned char mac[ETH_ALEN]; + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + lan966x_mac_ip_learn(lan966x, true, mac, mdb_entry->vid, type); +} + +static void lan966x_mdb_l2_cpu_copy(struct lan966x *lan966x, + struct lan966x_mdb_entry *mdb_entry, + enum macaccess_entry_type type) +{ + struct lan966x_pgid_entry *pgid_entry; + unsigned char mac[ETH_ALEN]; + + lan966x_pgid_entry_del(lan966x, mdb_entry->pgid); + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + + mdb_entry->ports |= BIT(CPU_PORT); + + pgid_entry = lan966x_pgid_entry_get(lan966x, mdb_entry); + if (IS_ERR(pgid_entry)) + return; + + mdb_entry->pgid = pgid_entry; + + lan_rmw(ANA_PGID_PGID_SET(mdb_entry->ports), + ANA_PGID_PGID, + lan966x, ANA_PGID(pgid_entry->index)); + + lan966x_mac_learn(lan966x, pgid_entry->index, mdb_entry->mac, + mdb_entry->vid, type); +} + +void lan966x_mdb_write_entries(struct lan966x *lan966x, u16 vid) +{ + struct lan966x_mdb_entry *mdb_entry; + enum macaccess_entry_type type; + + list_for_each_entry(mdb_entry, &lan966x->mdb_entries, list) { + if (mdb_entry->vid != vid || !mdb_entry->cpu_copy) + continue; + + type = lan966x_mdb_classify(mdb_entry->mac); + if (type == ENTRYTYPE_MACV4 || type == ENTRYTYPE_MACV6) + lan966x_mdb_ip_cpu_copy(lan966x, mdb_entry, type); + else + lan966x_mdb_l2_cpu_copy(lan966x, mdb_entry, type); + } +} + +static void lan966x_mdb_ip_cpu_remove(struct lan966x *lan966x, + struct lan966x_mdb_entry *mdb_entry, + enum macaccess_entry_type type) +{ + unsigned char mac[ETH_ALEN]; + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + lan966x_mac_ip_learn(lan966x, false, mac, mdb_entry->vid, type); +} + +static void lan966x_mdb_l2_cpu_remove(struct lan966x *lan966x, + struct lan966x_mdb_entry *mdb_entry, + enum macaccess_entry_type type) +{ + struct lan966x_pgid_entry *pgid_entry; + unsigned char mac[ETH_ALEN]; + + lan966x_pgid_entry_del(lan966x, mdb_entry->pgid); + lan966x_mdb_encode_mac(mac, mdb_entry, type); + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + + mdb_entry->ports &= ~BIT(CPU_PORT); + + pgid_entry = lan966x_pgid_entry_get(lan966x, mdb_entry); + if (IS_ERR(pgid_entry)) + return; + + mdb_entry->pgid = pgid_entry; + + lan_rmw(ANA_PGID_PGID_SET(mdb_entry->ports), + ANA_PGID_PGID, + lan966x, ANA_PGID(pgid_entry->index)); + + lan966x_mac_learn(lan966x, pgid_entry->index, mdb_entry->mac, + mdb_entry->vid, type); +} + +void lan966x_mdb_erase_entries(struct lan966x *lan966x, u16 vid) +{ + struct lan966x_mdb_entry *mdb_entry; + enum macaccess_entry_type type; + + list_for_each_entry(mdb_entry, &lan966x->mdb_entries, list) { + if (mdb_entry->vid != vid || !mdb_entry->cpu_copy) + continue; + + type = lan966x_mdb_classify(mdb_entry->mac); + if (type == ENTRYTYPE_MACV4 || type == ENTRYTYPE_MACV6) + lan966x_mdb_ip_cpu_remove(lan966x, mdb_entry, type); + else + lan966x_mdb_l2_cpu_remove(lan966x, mdb_entry, type); + } +} + +void lan966x_mdb_clear_entries(struct lan966x *lan966x) +{ + struct lan966x_mdb_entry *mdb_entry; + enum macaccess_entry_type type; + unsigned char mac[ETH_ALEN]; + + list_for_each_entry(mdb_entry, &lan966x->mdb_entries, list) { + type = lan966x_mdb_classify(mdb_entry->mac); + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + /* Remove just the MAC entry, still keep the PGID in case of L2 + * entries because this can be restored at later point + */ + lan966x_mac_forget(lan966x, mac, mdb_entry->vid, type); + } +} + +void lan966x_mdb_restore_entries(struct lan966x *lan966x) +{ + struct lan966x_mdb_entry *mdb_entry; + enum macaccess_entry_type type; + unsigned char mac[ETH_ALEN]; + bool cpu_copy = false; + + list_for_each_entry(mdb_entry, &lan966x->mdb_entries, list) { + type = lan966x_mdb_classify(mdb_entry->mac); + + lan966x_mdb_encode_mac(mac, mdb_entry, type); + if (type == ENTRYTYPE_MACV4 || type == ENTRYTYPE_MACV6) { + /* Copy the frame to CPU only if the CPU is in the VLAN */ + if (lan966x_vlan_cpu_member_cpu_vlan_mask(lan966x, + mdb_entry->vid) && + mdb_entry->cpu_copy) + cpu_copy = true; + + lan966x_mac_ip_learn(lan966x, cpu_copy, mac, + mdb_entry->vid, type); + } else { + lan966x_mac_learn(lan966x, mdb_entry->pgid->index, + mdb_entry->mac, + mdb_entry->vid, type); + } + } +} -- cgit v1.2.3