@@ -4921,6 +4921,74 @@ 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)
+{
+ 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,
+ ingress,
+ mirror->to_local_port);
+ if (err)
+ goto out;
+ }
+
+ err = mv88e6xxx_port_set_mirror(chip, port, ingress, 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)
+{
+ struct mv88e6xxx_chip *chip = ds->priv;
+ bool other_mirrors = false;
+ int i;
+
+ mutex_lock(&chip->reg_lock);
+ if (mv88e6xxx_port_set_mirror(chip, port, mirror->ingress, 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,
+ mirror->ingress,
+ 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)
{
@@ -4975,6 +5043,8 @@ 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,
@@ -228,6 +228,8 @@ struct mv88e6xxx_port {
u64 vtu_miss_violation;
u8 cmode;
unsigned int serdes_irq;
+ bool mirror_ingress;
+ bool mirror_egress;
};
struct mv88e6xxx_chip {
@@ -310,6 +312,10 @@ struct mv88e6xxx_chip {
u16 evcap_config;
u16 enable_count;
+ /* Current ingress and egress monitor ports */
+ int egress_dest_port;
+ int ingress_dest_port;
+
/* Per-port timestamping resources. */
struct mv88e6xxx_port_hwtstamp port_hwtstamp[DSA_MAX_PORTS];
@@ -280,7 +280,16 @@ int mv88e6095_g1_set_egress_port(struct mv88e6xxx_chip *chip, int port,
__bf_shf(MV88E6185_G1_MONITOR_CTL_INGRESS_DEST_MASK) :
__bf_shf(MV88E6185_G1_MONITOR_CTL_EGRESS_DEST_MASK));
- return mv88e6xxx_g1_write(chip, MV88E6185_G1_MONITOR_CTL, reg);
+ err = mv88e6xxx_g1_write(chip, MV88E6185_G1_MONITOR_CTL, reg);
+ if (err)
+ return err;
+
+ if (ingress)
+ chip->ingress_dest_port = port;
+ else
+ chip->egress_dest_port = port;
+
+ return 0;
}
/* Older generations also call this the ARP destination. It has been
@@ -1181,6 +1181,35 @@ int mv88e6095_port_set_upstream_port(struct mv88e6xxx_chip *chip, int port,
return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
}
+int mv88e6xxx_port_set_mirror(struct mv88e6xxx_chip *chip, int port,
+ bool ingress, bool mirror)
+{
+ u16 reg;
+ u16 bit;
+ int err;
+
+ err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, ®);
+ if (err)
+ return err;
+
+ bit = ingress ? MV88E6XXX_PORT_CTL2_INGRESS_MONITOR :
+ MV88E6XXX_PORT_CTL2_EGRESS_MONITOR;
+ reg &= ~bit;
+
+ if (mirror)
+ reg |= bit;
+
+ err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
+ if (!err) {
+ if (ingress)
+ chip->ports[port].mirror_ingress = mirror;
+ else
+ chip->ports[port].mirror_egress = mirror;
+ }
+
+ return err;
+}
+
int mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip *chip, int port,
u16 mode)
{
@@ -368,6 +368,8 @@ int mv88e6352_port_link_state(struct mv88e6xxx_chip *chip, int port,
int mv88e6xxx_port_set_map_da(struct mv88e6xxx_chip *chip, int port);
int mv88e6095_port_set_upstream_port(struct mv88e6xxx_chip *chip, int port,
int upstream_port);
+int mv88e6xxx_port_set_mirror(struct mv88e6xxx_chip *chip, int port,
+ bool ingress, bool mirror);
int mv88e6xxx_port_disable_learn_limit(struct mv88e6xxx_chip *chip, int port);
int mv88e6xxx_port_disable_pri_override(struct mv88e6xxx_chip *chip, int port);
Add support for configuring port mirroring through the cls_matchall classifier. We do a full ingress and/or egress capture towards a capture port. It allows setting a different capture port for ingress and egress traffic. It keeps track of the mirrored ports and the destination ports to prevent changes to the capture port while other ports are being mirrored. Signed-off-by: Iwan R Timmer <irtimmer@gmail.com> --- drivers/net/dsa/mv88e6xxx/chip.c | 70 +++++++++++++++++++++++++++++ drivers/net/dsa/mv88e6xxx/chip.h | 6 +++ drivers/net/dsa/mv88e6xxx/global1.c | 11 ++++- drivers/net/dsa/mv88e6xxx/port.c | 29 ++++++++++++ drivers/net/dsa/mv88e6xxx/port.h | 2 + 5 files changed, 117 insertions(+), 1 deletion(-)