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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c
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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(). ...
Diffstat (limited to 'drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c')
-rw-r--r--drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c503
1 files changed, 503 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c b/drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c
new file mode 100644
index 000000000..4af285918
--- /dev/null
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c
@@ -0,0 +1,503 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Microchip Sparx5 Switch driver
+ *
+ * Copyright (c) 2021 Microchip Technology Inc. and its subsidiaries.
+ */
+
+#include <net/switchdev.h>
+#include <linux/if_bridge.h>
+#include <linux/iopoll.h>
+
+#include "sparx5_main_regs.h"
+#include "sparx5_main.h"
+
+/* Commands for Mac Table Command register */
+#define MAC_CMD_LEARN 0 /* Insert (Learn) 1 entry */
+#define MAC_CMD_UNLEARN 1 /* Unlearn (Forget) 1 entry */
+#define MAC_CMD_LOOKUP 2 /* Look up 1 entry */
+#define MAC_CMD_READ 3 /* Read entry at Mac Table Index */
+#define MAC_CMD_WRITE 4 /* Write entry at Mac Table Index */
+#define MAC_CMD_SCAN 5 /* Scan (Age or find next) */
+#define MAC_CMD_FIND_SMALLEST 6 /* Get next entry */
+#define MAC_CMD_CLEAR_ALL 7 /* Delete all entries in table */
+
+/* Commands for MAC_ENTRY_ADDR_TYPE */
+#define MAC_ENTRY_ADDR_TYPE_UPSID_PN 0
+#define MAC_ENTRY_ADDR_TYPE_UPSID_CPU_OR_INT 1
+#define MAC_ENTRY_ADDR_TYPE_GLAG 2
+#define MAC_ENTRY_ADDR_TYPE_MC_IDX 3
+
+#define TABLE_UPDATE_SLEEP_US 10
+#define TABLE_UPDATE_TIMEOUT_US 100000
+
+struct sparx5_mact_entry {
+ struct list_head list;
+ unsigned char mac[ETH_ALEN];
+ u32 flags;
+#define MAC_ENT_ALIVE BIT(0)
+#define MAC_ENT_MOVED BIT(1)
+#define MAC_ENT_LOCK BIT(2)
+ u16 vid;
+ u16 port;
+};
+
+static int sparx5_mact_get_status(struct sparx5 *sparx5)
+{
+ return spx5_rd(sparx5, LRN_COMMON_ACCESS_CTRL);
+}
+
+static int sparx5_mact_wait_for_completion(struct sparx5 *sparx5)
+{
+ u32 val;
+
+ return readx_poll_timeout(sparx5_mact_get_status,
+ sparx5, val,
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_GET(val) == 0,
+ TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US);
+}
+
+static void sparx5_mact_select(struct sparx5 *sparx5,
+ const unsigned char mac[ETH_ALEN],
+ u16 vid)
+{
+ u32 macl = 0, mach = 0;
+
+ /* Set the MAC address to handle and the vlan associated in a format
+ * understood by the hardware.
+ */
+ mach |= vid << 16;
+ mach |= mac[0] << 8;
+ mach |= mac[1] << 0;
+ macl |= mac[2] << 24;
+ macl |= mac[3] << 16;
+ macl |= mac[4] << 8;
+ macl |= mac[5] << 0;
+
+ spx5_wr(mach, sparx5, LRN_MAC_ACCESS_CFG_0);
+ spx5_wr(macl, sparx5, LRN_MAC_ACCESS_CFG_1);
+}
+
+int sparx5_mact_learn(struct sparx5 *sparx5, int pgid,
+ const unsigned char mac[ETH_ALEN], u16 vid)
+{
+ int addr, type, ret;
+
+ if (pgid < SPX5_PORTS) {
+ type = MAC_ENTRY_ADDR_TYPE_UPSID_PN;
+ addr = pgid % 32;
+ addr += (pgid / 32) << 5; /* Add upsid */
+ } else {
+ type = MAC_ENTRY_ADDR_TYPE_MC_IDX;
+ addr = pgid - SPX5_PORTS;
+ }
+
+ mutex_lock(&sparx5->lock);
+
+ sparx5_mact_select(sparx5, mac, vid);
+
+ /* MAC entry properties */
+ spx5_wr(LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_ADDR_SET(addr) |
+ LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_ADDR_TYPE_SET(type) |
+ LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_VLD_SET(1) |
+ LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_LOCKED_SET(1),
+ sparx5, LRN_MAC_ACCESS_CFG_2);
+ spx5_wr(0, sparx5, LRN_MAC_ACCESS_CFG_3);
+
+ /* Insert/learn new entry */
+ spx5_wr(LRN_COMMON_ACCESS_CTRL_CPU_ACCESS_CMD_SET(MAC_CMD_LEARN) |
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_SET(1),
+ sparx5, LRN_COMMON_ACCESS_CTRL);
+
+ ret = sparx5_mact_wait_for_completion(sparx5);
+
+ mutex_unlock(&sparx5->lock);
+
+ return ret;
+}
+
+int sparx5_mc_unsync(struct net_device *dev, const unsigned char *addr)
+{
+ struct sparx5_port *port = netdev_priv(dev);
+ struct sparx5 *sparx5 = port->sparx5;
+
+ return sparx5_mact_forget(sparx5, addr, port->pvid);
+}
+
+int sparx5_mc_sync(struct net_device *dev, const unsigned char *addr)
+{
+ struct sparx5_port *port = netdev_priv(dev);
+ struct sparx5 *sparx5 = port->sparx5;
+
+ return sparx5_mact_learn(sparx5, PGID_CPU, addr, port->pvid);
+}
+
+static int sparx5_mact_get(struct sparx5 *sparx5,
+ unsigned char mac[ETH_ALEN],
+ u16 *vid, u32 *pcfg2)
+{
+ u32 mach, macl, cfg2;
+ int ret = -ENOENT;
+
+ cfg2 = spx5_rd(sparx5, LRN_MAC_ACCESS_CFG_2);
+ if (LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_VLD_GET(cfg2)) {
+ mach = spx5_rd(sparx5, LRN_MAC_ACCESS_CFG_0);
+ macl = spx5_rd(sparx5, LRN_MAC_ACCESS_CFG_1);
+ mac[0] = ((mach >> 8) & 0xff);
+ mac[1] = ((mach >> 0) & 0xff);
+ mac[2] = ((macl >> 24) & 0xff);
+ mac[3] = ((macl >> 16) & 0xff);
+ mac[4] = ((macl >> 8) & 0xff);
+ mac[5] = ((macl >> 0) & 0xff);
+ *vid = mach >> 16;
+ *pcfg2 = cfg2;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+bool sparx5_mact_getnext(struct sparx5 *sparx5,
+ unsigned char mac[ETH_ALEN], u16 *vid, u32 *pcfg2)
+{
+ u32 cfg2;
+ int ret;
+
+ mutex_lock(&sparx5->lock);
+
+ sparx5_mact_select(sparx5, mac, *vid);
+
+ spx5_wr(LRN_SCAN_NEXT_CFG_SCAN_NEXT_IGNORE_LOCKED_ENA_SET(1) |
+ LRN_SCAN_NEXT_CFG_SCAN_NEXT_UNTIL_FOUND_ENA_SET(1),
+ sparx5, LRN_SCAN_NEXT_CFG);
+ spx5_wr(LRN_COMMON_ACCESS_CTRL_CPU_ACCESS_CMD_SET
+ (MAC_CMD_FIND_SMALLEST) |
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_SET(1),
+ sparx5, LRN_COMMON_ACCESS_CTRL);
+
+ ret = sparx5_mact_wait_for_completion(sparx5);
+ if (ret == 0) {
+ ret = sparx5_mact_get(sparx5, mac, vid, &cfg2);
+ if (ret == 0)
+ *pcfg2 = cfg2;
+ }
+
+ mutex_unlock(&sparx5->lock);
+
+ return ret == 0;
+}
+
+int sparx5_mact_find(struct sparx5 *sparx5,
+ const unsigned char mac[ETH_ALEN], u16 vid, u32 *pcfg2)
+{
+ int ret;
+ u32 cfg2;
+
+ mutex_lock(&sparx5->lock);
+
+ sparx5_mact_select(sparx5, mac, vid);
+
+ /* Issue a lookup command */
+ spx5_wr(LRN_COMMON_ACCESS_CTRL_CPU_ACCESS_CMD_SET(MAC_CMD_LOOKUP) |
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_SET(1),
+ sparx5, LRN_COMMON_ACCESS_CTRL);
+
+ ret = sparx5_mact_wait_for_completion(sparx5);
+ if (ret == 0) {
+ cfg2 = spx5_rd(sparx5, LRN_MAC_ACCESS_CFG_2);
+ if (LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_VLD_GET(cfg2))
+ *pcfg2 = cfg2;
+ else
+ ret = -ENOENT;
+ }
+
+ mutex_unlock(&sparx5->lock);
+
+ return ret;
+}
+
+int sparx5_mact_forget(struct sparx5 *sparx5,
+ const unsigned char mac[ETH_ALEN], u16 vid)
+{
+ int ret;
+
+ mutex_lock(&sparx5->lock);
+
+ sparx5_mact_select(sparx5, mac, vid);
+
+ /* Issue an unlearn command */
+ spx5_wr(LRN_COMMON_ACCESS_CTRL_CPU_ACCESS_CMD_SET(MAC_CMD_UNLEARN) |
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_SET(1),
+ sparx5, LRN_COMMON_ACCESS_CTRL);
+
+ ret = sparx5_mact_wait_for_completion(sparx5);
+
+ mutex_unlock(&sparx5->lock);
+
+ return ret;
+}
+
+static struct sparx5_mact_entry *alloc_mact_entry(struct sparx5 *sparx5,
+ const unsigned char *mac,
+ u16 vid, u16 port_index)
+{
+ struct sparx5_mact_entry *mact_entry;
+
+ mact_entry = devm_kzalloc(sparx5->dev,
+ sizeof(*mact_entry), GFP_ATOMIC);
+ if (!mact_entry)
+ return NULL;
+
+ memcpy(mact_entry->mac, mac, ETH_ALEN);
+ mact_entry->vid = vid;
+ mact_entry->port = port_index;
+ return mact_entry;
+}
+
+static struct sparx5_mact_entry *find_mact_entry(struct sparx5 *sparx5,
+ const unsigned char *mac,
+ u16 vid, u16 port_index)
+{
+ struct sparx5_mact_entry *mact_entry;
+ struct sparx5_mact_entry *res = NULL;
+
+ mutex_lock(&sparx5->mact_lock);
+ list_for_each_entry(mact_entry, &sparx5->mact_entries, list) {
+ if (mact_entry->vid == vid &&
+ ether_addr_equal(mac, mact_entry->mac) &&
+ mact_entry->port == port_index) {
+ res = mact_entry;
+ break;
+ }
+ }
+ mutex_unlock(&sparx5->mact_lock);
+
+ return res;
+}
+
+static void sparx5_fdb_call_notifiers(enum switchdev_notifier_type type,
+ const char *mac, u16 vid,
+ struct net_device *dev, bool offloaded)
+{
+ struct switchdev_notifier_fdb_info info = {};
+
+ info.addr = mac;
+ info.vid = vid;
+ info.offloaded = offloaded;
+ call_switchdev_notifiers(type, dev, &info.info, NULL);
+}
+
+int sparx5_add_mact_entry(struct sparx5 *sparx5,
+ struct net_device *dev,
+ u16 portno,
+ const unsigned char *addr, u16 vid)
+{
+ struct sparx5_mact_entry *mact_entry;
+ int ret;
+ u32 cfg2;
+
+ ret = sparx5_mact_find(sparx5, addr, vid, &cfg2);
+ if (!ret)
+ return 0;
+
+ /* In case the entry already exists, don't add it again to SW,
+ * just update HW, but we need to look in the actual HW because
+ * it is possible for an entry to be learn by HW and before the
+ * mact thread to start the frame will reach CPU and the CPU will
+ * add the entry but without the extern_learn flag.
+ */
+ mact_entry = find_mact_entry(sparx5, addr, vid, portno);
+ if (mact_entry)
+ goto update_hw;
+
+ /* Add the entry in SW MAC table not to get the notification when
+ * SW is pulling again
+ */
+ mact_entry = alloc_mact_entry(sparx5, addr, vid, portno);
+ if (!mact_entry)
+ return -ENOMEM;
+
+ mutex_lock(&sparx5->mact_lock);
+ list_add_tail(&mact_entry->list, &sparx5->mact_entries);
+ mutex_unlock(&sparx5->mact_lock);
+
+update_hw:
+ ret = sparx5_mact_learn(sparx5, portno, addr, vid);
+
+ /* New entry? */
+ if (mact_entry->flags == 0) {
+ mact_entry->flags |= MAC_ENT_LOCK; /* Don't age this */
+ sparx5_fdb_call_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE, addr, vid,
+ dev, true);
+ }
+
+ return ret;
+}
+
+int sparx5_del_mact_entry(struct sparx5 *sparx5,
+ const unsigned char *addr,
+ u16 vid)
+{
+ struct sparx5_mact_entry *mact_entry, *tmp;
+
+ /* Delete the entry in SW MAC table not to get the notification when
+ * SW is pulling again
+ */
+ mutex_lock(&sparx5->mact_lock);
+ list_for_each_entry_safe(mact_entry, tmp, &sparx5->mact_entries,
+ list) {
+ if ((vid == 0 || mact_entry->vid == vid) &&
+ ether_addr_equal(addr, mact_entry->mac)) {
+ list_del(&mact_entry->list);
+ devm_kfree(sparx5->dev, mact_entry);
+
+ sparx5_mact_forget(sparx5, addr, mact_entry->vid);
+ }
+ }
+ mutex_unlock(&sparx5->mact_lock);
+
+ return 0;
+}
+
+static void sparx5_mact_handle_entry(struct sparx5 *sparx5,
+ unsigned char mac[ETH_ALEN],
+ u16 vid, u32 cfg2)
+{
+ struct sparx5_mact_entry *mact_entry;
+ bool found = false;
+ u16 port;
+
+ if (LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_ADDR_TYPE_GET(cfg2) !=
+ MAC_ENTRY_ADDR_TYPE_UPSID_PN)
+ return;
+
+ port = LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_ADDR_GET(cfg2);
+ if (port >= SPX5_PORTS)
+ return;
+
+ if (!test_bit(port, sparx5->bridge_mask))
+ return;
+
+ mutex_lock(&sparx5->mact_lock);
+ list_for_each_entry(mact_entry, &sparx5->mact_entries, list) {
+ if (mact_entry->vid == vid &&
+ ether_addr_equal(mac, mact_entry->mac)) {
+ found = true;
+ mact_entry->flags |= MAC_ENT_ALIVE;
+ if (mact_entry->port != port) {
+ dev_warn(sparx5->dev, "Entry move: %d -> %d\n",
+ mact_entry->port, port);
+ mact_entry->port = port;
+ mact_entry->flags |= MAC_ENT_MOVED;
+ }
+ /* Entry handled */
+ break;
+ }
+ }
+ mutex_unlock(&sparx5->mact_lock);
+
+ if (found && !(mact_entry->flags & MAC_ENT_MOVED))
+ /* Present, not moved */
+ return;
+
+ if (!found) {
+ /* Entry not found - now add */
+ mact_entry = alloc_mact_entry(sparx5, mac, vid, port);
+ if (!mact_entry)
+ return;
+
+ mact_entry->flags |= MAC_ENT_ALIVE;
+ mutex_lock(&sparx5->mact_lock);
+ list_add_tail(&mact_entry->list, &sparx5->mact_entries);
+ mutex_unlock(&sparx5->mact_lock);
+ }
+
+ /* New or moved entry - notify bridge */
+ sparx5_fdb_call_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE,
+ mac, vid, sparx5->ports[port]->ndev,
+ true);
+}
+
+void sparx5_mact_pull_work(struct work_struct *work)
+{
+ struct delayed_work *del_work = to_delayed_work(work);
+ struct sparx5 *sparx5 = container_of(del_work, struct sparx5,
+ mact_work);
+ struct sparx5_mact_entry *mact_entry, *tmp;
+ unsigned char mac[ETH_ALEN];
+ u32 cfg2;
+ u16 vid;
+ int ret;
+
+ /* Reset MAC entry flags */
+ mutex_lock(&sparx5->mact_lock);
+ list_for_each_entry(mact_entry, &sparx5->mact_entries, list)
+ mact_entry->flags &= MAC_ENT_LOCK;
+ mutex_unlock(&sparx5->mact_lock);
+
+ /* MAIN mac address processing loop */
+ vid = 0;
+ memset(mac, 0, sizeof(mac));
+ do {
+ mutex_lock(&sparx5->lock);
+ sparx5_mact_select(sparx5, mac, vid);
+ spx5_wr(LRN_SCAN_NEXT_CFG_SCAN_NEXT_UNTIL_FOUND_ENA_SET(1),
+ sparx5, LRN_SCAN_NEXT_CFG);
+ spx5_wr(LRN_COMMON_ACCESS_CTRL_CPU_ACCESS_CMD_SET
+ (MAC_CMD_FIND_SMALLEST) |
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_SET(1),
+ sparx5, LRN_COMMON_ACCESS_CTRL);
+ ret = sparx5_mact_wait_for_completion(sparx5);
+ if (ret == 0)
+ ret = sparx5_mact_get(sparx5, mac, &vid, &cfg2);
+ mutex_unlock(&sparx5->lock);
+ if (ret == 0)
+ sparx5_mact_handle_entry(sparx5, mac, vid, cfg2);
+ } while (ret == 0);
+
+ mutex_lock(&sparx5->mact_lock);
+ list_for_each_entry_safe(mact_entry, tmp, &sparx5->mact_entries,
+ list) {
+ /* If the entry is in HW or permanent, then skip */
+ if (mact_entry->flags & (MAC_ENT_ALIVE | MAC_ENT_LOCK))
+ continue;
+
+ sparx5_fdb_call_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE,
+ mact_entry->mac, mact_entry->vid,
+ sparx5->ports[mact_entry->port]->ndev,
+ true);
+
+ list_del(&mact_entry->list);
+ devm_kfree(sparx5->dev, mact_entry);
+ }
+ mutex_unlock(&sparx5->mact_lock);
+
+ queue_delayed_work(sparx5->mact_queue, &sparx5->mact_work,
+ SPX5_MACT_PULL_DELAY);
+}
+
+void sparx5_set_ageing(struct sparx5 *sparx5, int msecs)
+{
+ int value = max(1, msecs / 10); /* unit 10 ms */
+
+ spx5_rmw(LRN_AUTOAGE_CFG_UNIT_SIZE_SET(2) | /* 10 ms */
+ LRN_AUTOAGE_CFG_PERIOD_VAL_SET(value / 2), /* one bit ageing */
+ LRN_AUTOAGE_CFG_UNIT_SIZE |
+ LRN_AUTOAGE_CFG_PERIOD_VAL,
+ sparx5,
+ LRN_AUTOAGE_CFG(0));
+}
+
+void sparx5_mact_init(struct sparx5 *sparx5)
+{
+ mutex_init(&sparx5->lock);
+
+ /* Flush MAC table */
+ spx5_wr(LRN_COMMON_ACCESS_CTRL_CPU_ACCESS_CMD_SET(MAC_CMD_CLEAR_ALL) |
+ LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT_SET(1),
+ sparx5, LRN_COMMON_ACCESS_CTRL);
+
+ if (sparx5_mact_wait_for_completion(sparx5) != 0)
+ dev_warn(sparx5->dev, "MAC flush error\n");
+
+ sparx5_set_ageing(sparx5, BR_DEFAULT_AGEING_TIME / HZ * 1000);
+}