diff options
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/chip.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index dfca0ec35145..e8bf6ac1e0f4 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -5250,6 +5250,80 @@ static int mv88e6xxx_port_mdb_del(struct dsa_switch *ds, int port, return err; } +static int mv88e6xxx_port_mirror_add(struct dsa_switch *ds, int port, + struct dsa_mall_mirror_tc_entry *mirror, + bool ingress) +{ + enum mv88e6xxx_egress_direction direction = ingress ? + MV88E6XXX_EGRESS_DIR_INGRESS : + MV88E6XXX_EGRESS_DIR_EGRESS; + struct mv88e6xxx_chip *chip = ds->priv; + bool other_mirrors = false; + int i; + int err; + + if (!chip->info->ops->set_egress_port) + return -EOPNOTSUPP; + + mutex_lock(&chip->reg_lock); + if ((ingress ? chip->ingress_dest_port : chip->egress_dest_port) != + mirror->to_local_port) { + for (i = 0; i < mv88e6xxx_num_ports(chip); i++) + other_mirrors |= ingress ? + chip->ports[i].mirror_ingress : + chip->ports[i].mirror_egress; + + /* Can't change egress port when other mirror is active */ + if (other_mirrors) { + err = -EBUSY; + goto out; + } + + err = chip->info->ops->set_egress_port(chip, + direction, + mirror->to_local_port); + if (err) + goto out; + } + + err = mv88e6xxx_port_set_mirror(chip, port, direction, true); +out: + mutex_unlock(&chip->reg_lock); + + return err; +} + +static void mv88e6xxx_port_mirror_del(struct dsa_switch *ds, int port, + struct dsa_mall_mirror_tc_entry *mirror) +{ + enum mv88e6xxx_egress_direction direction = mirror->ingress ? + MV88E6XXX_EGRESS_DIR_INGRESS : + MV88E6XXX_EGRESS_DIR_EGRESS; + struct mv88e6xxx_chip *chip = ds->priv; + bool other_mirrors = false; + int i; + + mutex_lock(&chip->reg_lock); + if (mv88e6xxx_port_set_mirror(chip, port, direction, false)) + dev_err(ds->dev, "p%d: failed to disable mirroring\n", port); + + for (i = 0; i < mv88e6xxx_num_ports(chip); i++) + other_mirrors |= mirror->ingress ? + chip->ports[i].mirror_ingress : + chip->ports[i].mirror_egress; + + /* Reset egress port when no other mirror is active */ + if (!other_mirrors) { + if (chip->info->ops->set_egress_port(chip, + direction, + dsa_upstream_port(ds, + port))); + dev_err(ds->dev, "failed to set egress port\n"); + } + + mutex_unlock(&chip->reg_lock); +} + static int mv88e6xxx_port_egress_floods(struct dsa_switch *ds, int port, bool unicast, bool multicast) { @@ -5305,6 +5379,8 @@ static const struct dsa_switch_ops mv88e6xxx_switch_ops = { .port_mdb_prepare = mv88e6xxx_port_mdb_prepare, .port_mdb_add = mv88e6xxx_port_mdb_add, .port_mdb_del = mv88e6xxx_port_mdb_del, + .port_mirror_add = mv88e6xxx_port_mirror_add, + .port_mirror_del = mv88e6xxx_port_mirror_del, .crosschip_bridge_join = mv88e6xxx_crosschip_bridge_join, .crosschip_bridge_leave = mv88e6xxx_crosschip_bridge_leave, .port_hwtstamp_set = mv88e6xxx_port_hwtstamp_set, |