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path: root/drivers/net/bonding/bond_3ad.c
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Diffstat (limited to 'drivers/net/bonding/bond_3ad.c')
-rw-r--r--drivers/net/bonding/bond_3ad.c65
1 files changed, 62 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index cfc4a9c..374696d 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -70,6 +70,7 @@
#define AD_PORT_STANDBY 0x80
#define AD_PORT_SELECTED 0x100
#define AD_PORT_MOVED 0x200
+#define AD_PORT_CHURNED (AD_PORT_ACTOR_CHURN | AD_PORT_PARTNER_CHURN)
/* Port Key definitions
* key is determined according to the link speed, duplex and
@@ -1013,16 +1014,19 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port)
/* check if state machine should change state */
/* first, check if port was reinitialized */
- if (port->sm_vars & AD_PORT_BEGIN)
+ if (port->sm_vars & AD_PORT_BEGIN) {
port->sm_rx_state = AD_RX_INITIALIZE;
+ port->sm_vars |= AD_PORT_CHURNED;
/* check if port is not enabled */
- else if (!(port->sm_vars & AD_PORT_BEGIN)
+ } else if (!(port->sm_vars & AD_PORT_BEGIN)
&& !port->is_enabled && !(port->sm_vars & AD_PORT_MOVED))
port->sm_rx_state = AD_RX_PORT_DISABLED;
/* check if new lacpdu arrived */
else if (lacpdu && ((port->sm_rx_state == AD_RX_EXPIRED) ||
(port->sm_rx_state == AD_RX_DEFAULTED) ||
(port->sm_rx_state == AD_RX_CURRENT))) {
+ if (port->sm_rx_state != AD_RX_CURRENT)
+ port->sm_vars |= AD_PORT_CHURNED;
port->sm_rx_timer_counter = 0;
port->sm_rx_state = AD_RX_CURRENT;
} else {
@@ -1100,9 +1104,11 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port)
*/
port->partner_oper.port_state &= ~AD_STATE_SYNCHRONIZATION;
port->sm_vars &= ~AD_PORT_MATCHED;
+ port->partner_oper.port_state |= AD_STATE_LACP_TIMEOUT;
port->partner_oper.port_state |= AD_STATE_LACP_ACTIVITY;
port->sm_rx_timer_counter = __ad_timer_to_ticks(AD_CURRENT_WHILE_TIMER, (u16)(AD_SHORT_TIMEOUT));
port->actor_oper_port_state |= AD_STATE_EXPIRED;
+ port->sm_vars |= AD_PORT_CHURNED;
break;
case AD_RX_DEFAULTED:
__update_default_selected(port);
@@ -1132,6 +1138,45 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port)
}
/**
+ * ad_churn_machine - handle port churn's state machine
+ * @port: the port we're looking at
+ *
+ */
+static void ad_churn_machine(struct port *port)
+{
+ if (port->sm_vars & AD_PORT_CHURNED) {
+ port->sm_vars &= ~AD_PORT_CHURNED;
+ port->sm_churn_actor_state = AD_CHURN_MONITOR;
+ port->sm_churn_partner_state = AD_CHURN_MONITOR;
+ port->sm_churn_actor_timer_counter =
+ __ad_timer_to_ticks(AD_ACTOR_CHURN_TIMER, 0);
+ port->sm_churn_partner_timer_counter =
+ __ad_timer_to_ticks(AD_PARTNER_CHURN_TIMER, 0);
+ return;
+ }
+ if (port->sm_churn_actor_timer_counter &&
+ !(--port->sm_churn_actor_timer_counter) &&
+ port->sm_churn_actor_state == AD_CHURN_MONITOR) {
+ if (port->actor_oper_port_state & AD_STATE_SYNCHRONIZATION) {
+ port->sm_churn_actor_state = AD_NO_CHURN;
+ } else {
+ port->churn_actor_count++;
+ port->sm_churn_actor_state = AD_CHURN;
+ }
+ }
+ if (port->sm_churn_partner_timer_counter &&
+ !(--port->sm_churn_partner_timer_counter) &&
+ port->sm_churn_partner_state == AD_CHURN_MONITOR) {
+ if (port->partner_oper.port_state & AD_STATE_SYNCHRONIZATION) {
+ port->sm_churn_partner_state = AD_NO_CHURN;
+ } else {
+ port->churn_partner_count++;
+ port->sm_churn_partner_state = AD_CHURN;
+ }
+ }
+}
+
+/**
* ad_tx_machine - handle a port's tx state machine
* @port: the port we're looking at
*/
@@ -1731,7 +1776,7 @@ static void ad_initialize_port(struct port *port, int lacp_fast)
port->is_enabled = true;
/* private parameters */
- port->sm_vars = 0x3;
+ port->sm_vars = AD_PORT_BEGIN | AD_PORT_LACP_ENABLED;
port->sm_rx_state = 0;
port->sm_rx_timer_counter = 0;
port->sm_periodic_state = 0;
@@ -1745,6 +1790,13 @@ static void ad_initialize_port(struct port *port, int lacp_fast)
port->next_port_in_aggregator = NULL;
port->transaction_id = 0;
+ port->sm_churn_actor_timer_counter = 0;
+ port->sm_churn_actor_state = 0;
+ port->churn_actor_count = 0;
+ port->sm_churn_partner_timer_counter = 0;
+ port->sm_churn_partner_state = 0;
+ port->churn_partner_count = 0;
+
memcpy(&port->lacpdu, &lacpdu, sizeof(lacpdu));
}
}
@@ -2164,6 +2216,7 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
ad_port_selection_logic(port, &update_slave_arr);
ad_mux_machine(port, &update_slave_arr);
ad_tx_machine(port);
+ ad_churn_machine(port);
/* turn off the BEGIN bit, since we already handled it */
if (port->sm_vars & AD_PORT_BEGIN)
@@ -2362,12 +2415,15 @@ void bond_3ad_handle_link_change(struct slave *slave, char link)
port->actor_admin_port_key &= ~AD_SPEED_KEY_MASKS;
port->actor_oper_port_key = port->actor_admin_port_key |=
(__get_link_speed(port) << 1);
+ if (port->actor_oper_port_key & AD_DUPLEX_KEY_MASKS)
+ port->sm_vars |= AD_PORT_LACP_ENABLED;
} else {
/* link has failed */
port->is_enabled = false;
port->actor_admin_port_key &= ~AD_DUPLEX_KEY_MASKS;
port->actor_oper_port_key = (port->actor_admin_port_key &=
~AD_SPEED_KEY_MASKS);
+ port->sm_vars &= ~AD_PORT_LACP_ENABLED;
}
netdev_dbg(slave->bond->dev, "Port %d changed link status to %s\n",
port->actor_port_number,
@@ -2485,6 +2541,9 @@ int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
if (skb->protocol != PKT_TYPE_LACPDU)
return RX_HANDLER_ANOTHER;
+ if (!MAC_ADDRESS_EQUAL(eth_hdr(skb)->h_dest, lacpdu_mcast_addr))
+ return RX_HANDLER_ANOTHER;
+
lacpdu = skb_header_pointer(skb, 0, sizeof(_lacpdu), &_lacpdu);
if (!lacpdu)
return RX_HANDLER_ANOTHER;
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