mv88e6xxx_atu_get() is quite slow, and therefore can be
replaced with hashtable helper functions that are much
faster when inserting entries into the database, or searching
for them. The logics in mv88e6xxx_db_load_purte() is similar to
previous implementation, but hashtable helper functions
are used instead of mv88e6xxx_atu_get().

Signed-off-by: Volodymyr Bendiuga <volodymyr.bendi...@gmail.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 63 +++++++++++-----------------------------
 1 file changed, 17 insertions(+), 46 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 6597f3f..6032c5b 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2069,42 +2069,6 @@ static u16 mv88e6xxx_pvec_tbl_get(struct mv88e6xxx_chip 
*chip,
         return 0;
 }
 
-static int _mv88e6xxx_atu_getnext(struct mv88e6xxx_chip *chip, u16 fid,
-                                 struct mv88e6xxx_atu_entry *entry);
-
-static int mv88e6xxx_atu_get(struct mv88e6xxx_chip *chip, int fid,
-                            const u8 *addr, struct mv88e6xxx_atu_entry *entry)
-{
-       struct mv88e6xxx_atu_entry next;
-       int err;
-
-       eth_broadcast_addr(next.mac);
-
-       err = _mv88e6xxx_atu_mac_write(chip, next.mac);
-       if (err)
-               return err;
-
-       do {
-               err = _mv88e6xxx_atu_getnext(chip, fid, &next);
-               if (err)
-                       return err;
-
-               if (next.state == GLOBAL_ATU_DATA_STATE_UNUSED)
-                       break;
-
-               if (ether_addr_equal(next.mac, addr)) {
-                       *entry = next;
-                       return 0;
-               }
-       } while (!is_broadcast_ether_addr(next.mac));
-
-       memset(entry, 0, sizeof(*entry));
-       entry->fid = fid;
-       ether_addr_copy(entry->mac, addr);
-
-       return 0;
-}
-
 static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port,
                                        const unsigned char *addr, u16 vid,
                                        u8 state)
@@ -2121,18 +2085,25 @@ static int mv88e6xxx_port_db_load_purge(struct 
mv88e6xxx_chip *chip, int port,
        if (err)
                return err;
 
-       err = mv88e6xxx_atu_get(chip, vlan.fid, addr, &entry);
-       if (err)
-               return err;
+       entry.fid = vlan.fid;
+       entry.state = state;
+       ether_addr_copy(entry.mac, addr);
+
+       /* multicast entries can use several ports for each address */
+       if (is_multicast_ether_addr(addr)) {
+               entry.portv_trunkid = mv88e6xxx_pvec_tbl_get(chip, entry.fid, 
addr);
+               if (state == GLOBAL_ATU_DATA_STATE_UNUSED)
+                       entry.portv_trunkid &= ~BIT(port);
+               else
+                       entry.portv_trunkid |= BIT(port);
 
-       /* Purge the ATU entry only if no port is using it anymore */
-       if (state == GLOBAL_ATU_DATA_STATE_UNUSED) {
-               entry.portv_trunkid &= ~BIT(port);
-               if (!entry.portv_trunkid)
-                       entry.state = GLOBAL_ATU_DATA_STATE_UNUSED;
+               mv88e6xxx_pvec_tbl_update(chip, entry.fid, addr, 
entry.portv_trunkid);
+               entry.trunk = false;
        } else {
-               entry.portv_trunkid |= BIT(port);
-               entry.state = state;
+               if (state != GLOBAL_ATU_DATA_STATE_UNUSED) {
+                       entry.trunk = false;
+                       entry.portv_trunkid = BIT(port);
+               }
        }
 
        return _mv88e6xxx_atu_load(chip, &entry);
-- 
2.7.4

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