*
*/
-//#define BONDING_DEBUG 1
-
#include <linux/skbuff.h>
#include <linux/if_ether.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
#include <linux/if_bonding.h>
#include <linux/pkt_sched.h>
#include <net/net_namespace.h>
return &(SLAVE_AD_INFO(slave->next).aggregator);
}
+/*
+ * __agg_has_partner
+ *
+ * Return nonzero if aggregator has a partner (denoted by a non-zero ether
+ * address for the partner). Return 0 if not.
+ */
+static inline int __agg_has_partner(struct aggregator *agg)
+{
+ return !is_zero_ether_addr(agg->partner_system.mac_addr_value);
+}
+
/**
* __disable_port - disable the port's slave
* @port: the port we're looking at
* __get_agg_selection_mode - get the aggregator selection mode
* @port: the port we're looking at
*
- * Get the aggregator selection mode. Can be %BANDWIDTH or %COUNT.
+ * Get the aggregator selection mode. Can be %STABLE, %BANDWIDTH or %COUNT.
*/
static inline u32 __get_agg_selection_mode(struct port *port)
{
struct bonding *bond = __get_bond_by_port(port);
if (bond == NULL) {
- return AD_BANDWIDTH;
+ return BOND_AD_STABLE;
}
return BOND_AD_INFO(bond).agg_select_mode;
}
}
- dprintk("Port %d Received link speed %d update from adapter\n", port->actor_port_number, speed);
+ pr_debug("Port %d Received link speed %d update from adapter\n", port->actor_port_number, speed);
return speed;
}
switch (slave->duplex) {
case DUPLEX_FULL:
retval=0x1;
- dprintk("Port %d Received status full duplex update from adapter\n", port->actor_port_number);
+ pr_debug("Port %d Received status full duplex update from adapter\n", port->actor_port_number);
break;
case DUPLEX_HALF:
default:
retval=0x0;
- dprintk("Port %d Received status NOT full duplex update from adapter\n", port->actor_port_number);
+ pr_debug("Port %d Received status NOT full duplex update from adapter\n", port->actor_port_number);
break;
}
}
*/
static void __record_pdu(struct lacpdu *lacpdu, struct port *port)
{
- // validate lacpdu and port
if (lacpdu && port) {
+ struct port_params *partner = &port->partner_oper;
+
// record the new parameter values for the partner operational
- port->partner_oper_port_number = ntohs(lacpdu->actor_port);
- port->partner_oper_port_priority = ntohs(lacpdu->actor_port_priority);
- port->partner_oper_system = lacpdu->actor_system;
- port->partner_oper_system_priority = ntohs(lacpdu->actor_system_priority);
- port->partner_oper_key = ntohs(lacpdu->actor_key);
- // zero partener's lase states
- port->partner_oper_port_state = 0;
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_LACP_ACTIVITY);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_LACP_TIMEOUT);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_AGGREGATION);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_SYNCHRONIZATION);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_COLLECTING);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_DISTRIBUTING);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_DEFAULTED);
- port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_EXPIRED);
+ partner->port_number = ntohs(lacpdu->actor_port);
+ partner->port_priority = ntohs(lacpdu->actor_port_priority);
+ partner->system = lacpdu->actor_system;
+ partner->system_priority = ntohs(lacpdu->actor_system_priority);
+ partner->key = ntohs(lacpdu->actor_key);
+ partner->port_state = lacpdu->actor_state;
// set actor_oper_port_state.defaulted to FALSE
port->actor_oper_port_state &= ~AD_STATE_DEFAULTED;
// set the partner sync. to on if the partner is sync. and the port is matched
if ((port->sm_vars & AD_PORT_MATCHED) && (lacpdu->actor_state & AD_STATE_SYNCHRONIZATION)) {
- port->partner_oper_port_state |= AD_STATE_SYNCHRONIZATION;
+ partner->port_state |= AD_STATE_SYNCHRONIZATION;
} else {
- port->partner_oper_port_state &= ~AD_STATE_SYNCHRONIZATION;
+ partner->port_state &= ~AD_STATE_SYNCHRONIZATION;
}
}
}
*/
static void __record_default(struct port *port)
{
- // validate the port
if (port) {
// record the partner admin parameters
- port->partner_oper_port_number = port->partner_admin_port_number;
- port->partner_oper_port_priority = port->partner_admin_port_priority;
- port->partner_oper_system = port->partner_admin_system;
- port->partner_oper_system_priority = port->partner_admin_system_priority;
- port->partner_oper_key = port->partner_admin_key;
- port->partner_oper_port_state = port->partner_admin_port_state;
+ memcpy(&port->partner_oper, &port->partner_admin,
+ sizeof(struct port_params));
// set actor_oper_port_state.defaulted to true
port->actor_oper_port_state |= AD_STATE_DEFAULTED;
// validate lacpdu and port
if (lacpdu && port) {
// check if any parameter is different
- if ((ntohs(lacpdu->actor_port) != port->partner_oper_port_number) ||
- (ntohs(lacpdu->actor_port_priority) != port->partner_oper_port_priority) ||
- MAC_ADDRESS_COMPARE(&(lacpdu->actor_system), &(port->partner_oper_system)) ||
- (ntohs(lacpdu->actor_system_priority) != port->partner_oper_system_priority) ||
- (ntohs(lacpdu->actor_key) != port->partner_oper_key) ||
- ((lacpdu->actor_state & AD_STATE_AGGREGATION) != (port->partner_oper_port_state & AD_STATE_AGGREGATION))
+ if ((ntohs(lacpdu->actor_port) != port->partner_oper.port_number) ||
+ (ntohs(lacpdu->actor_port_priority) != port->partner_oper.port_priority) ||
+ MAC_ADDRESS_COMPARE(&(lacpdu->actor_system), &(port->partner_oper.system)) ||
+ (ntohs(lacpdu->actor_system_priority) != port->partner_oper.system_priority) ||
+ (ntohs(lacpdu->actor_key) != port->partner_oper.key) ||
+ ((lacpdu->actor_state & AD_STATE_AGGREGATION) != (port->partner_oper.port_state & AD_STATE_AGGREGATION))
) {
// update the state machine Selected variable
port->sm_vars &= ~AD_PORT_SELECTED;
// validate the port
if (port) {
// check if any parameter is different
- if ((port->partner_admin_port_number != port->partner_oper_port_number) ||
- (port->partner_admin_port_priority != port->partner_oper_port_priority) ||
- MAC_ADDRESS_COMPARE(&(port->partner_admin_system), &(port->partner_oper_system)) ||
- (port->partner_admin_system_priority != port->partner_oper_system_priority) ||
- (port->partner_admin_key != port->partner_oper_key) ||
- ((port->partner_admin_port_state & AD_STATE_AGGREGATION) != (port->partner_oper_port_state & AD_STATE_AGGREGATION))
+ if ((port->partner_admin.port_number != port->partner_oper.port_number) ||
+ (port->partner_admin.port_priority != port->partner_oper.port_priority) ||
+ MAC_ADDRESS_COMPARE(&(port->partner_admin.system), &(port->partner_oper.system)) ||
+ (port->partner_admin.system_priority != port->partner_oper.system_priority) ||
+ (port->partner_admin.key != port->partner_oper.key) ||
+ ((port->partner_admin.port_state & AD_STATE_AGGREGATION) != (port->partner_oper.port_state & AD_STATE_AGGREGATION))
) {
// update the state machine Selected variable
port->sm_vars &= ~AD_PORT_SELECTED;
* lacpdu->partner_information_length initialized
*/
- lacpdu->partner_system_priority = htons(port->partner_oper_system_priority);
- lacpdu->partner_system = port->partner_oper_system;
- lacpdu->partner_key = htons(port->partner_oper_key);
- lacpdu->partner_port_priority = htons(port->partner_oper_port_priority);
- lacpdu->partner_port = htons(port->partner_oper_port_number);
- lacpdu->partner_state = port->partner_oper_port_state;
+ lacpdu->partner_system_priority = htons(port->partner_oper.system_priority);
+ lacpdu->partner_system = port->partner_oper.system;
+ lacpdu->partner_key = htons(port->partner_oper.key);
+ lacpdu->partner_port_priority = htons(port->partner_oper.port_priority);
+ lacpdu->partner_port = htons(port->partner_oper.port_number);
+ lacpdu->partner_state = port->partner_oper.port_state;
/* lacpdu->reserved_3_2 initialized
* lacpdu->tlv_type_collector_info initialized
break;
case AD_MUX_ATTACHED:
// check also if agg_select_timer expired(so the edable port will take place only after this timer)
- if ((port->sm_vars & AD_PORT_SELECTED) && (port->partner_oper_port_state & AD_STATE_SYNCHRONIZATION) && !__check_agg_selection_timer(port)) {
+ if ((port->sm_vars & AD_PORT_SELECTED) && (port->partner_oper.port_state & AD_STATE_SYNCHRONIZATION) && !__check_agg_selection_timer(port)) {
port->sm_mux_state = AD_MUX_COLLECTING_DISTRIBUTING;// next state
} else if (!(port->sm_vars & AD_PORT_SELECTED) || (port->sm_vars & AD_PORT_STANDBY)) { // if UNSELECTED or STANDBY
port->sm_vars &= ~AD_PORT_READY_N;
break;
case AD_MUX_COLLECTING_DISTRIBUTING:
if (!(port->sm_vars & AD_PORT_SELECTED) || (port->sm_vars & AD_PORT_STANDBY) ||
- !(port->partner_oper_port_state & AD_STATE_SYNCHRONIZATION)
+ !(port->partner_oper.port_state & AD_STATE_SYNCHRONIZATION)
) {
port->sm_mux_state = AD_MUX_ATTACHED;// next state
// check if the state machine was changed
if (port->sm_mux_state != last_state) {
- dprintk("Mux Machine: Port=%d, Last State=%d, Curr State=%d\n", port->actor_port_number, last_state, port->sm_mux_state);
+ pr_debug("Mux Machine: Port=%d, Last State=%d, Curr State=%d\n", port->actor_port_number, last_state, port->sm_mux_state);
switch (port->sm_mux_state) {
case AD_MUX_DETACHED:
__detach_bond_from_agg(port);
// check if the State machine was changed or new lacpdu arrived
if ((port->sm_rx_state != last_state) || (lacpdu)) {
- dprintk("Rx Machine: Port=%d, Last State=%d, Curr State=%d\n", port->actor_port_number, last_state, port->sm_rx_state);
+ pr_debug("Rx Machine: Port=%d, Last State=%d, Curr State=%d\n", port->actor_port_number, last_state, port->sm_rx_state);
switch (port->sm_rx_state) {
case AD_RX_INITIALIZE:
if (!(port->actor_oper_port_key & AD_DUPLEX_KEY_BITS)) {
case AD_RX_LACP_DISABLED:
port->sm_vars &= ~AD_PORT_SELECTED;
__record_default(port);
- port->partner_oper_port_state &= ~AD_STATE_AGGREGATION;
+ port->partner_oper.port_state &= ~AD_STATE_AGGREGATION;
port->sm_vars |= AD_PORT_MATCHED;
port->actor_oper_port_state &= ~AD_STATE_EXPIRED;
break;
//Reset of the Synchronization flag. (Standard 43.4.12)
//This reset cause to disable this port in the COLLECTING_DISTRIBUTING state of the
//mux machine in case of EXPIRED even if LINK_DOWN didn't arrive for the port.
- port->partner_oper_port_state &= ~AD_STATE_SYNCHRONIZATION;
+ port->partner_oper.port_state &= ~AD_STATE_SYNCHRONIZATION;
port->sm_vars &= ~AD_PORT_MATCHED;
- port->partner_oper_port_state |= AD_SHORT_TIMEOUT;
+ port->partner_oper.port_state |= AD_SHORT_TIMEOUT;
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;
break;
__update_lacpdu_from_port(port);
// send the lacpdu
if (ad_lacpdu_send(port) >= 0) {
- dprintk("Sent LACPDU on port %d\n", port->actor_port_number);
+ pr_debug("Sent LACPDU on port %d\n", port->actor_port_number);
// mark ntt as false, so it will not be sent again until demanded
port->ntt = 0;
}
// check if port was reinitialized
if (((port->sm_vars & AD_PORT_BEGIN) || !(port->sm_vars & AD_PORT_LACP_ENABLED) || !port->is_enabled) ||
- (!(port->actor_oper_port_state & AD_STATE_LACP_ACTIVITY) && !(port->partner_oper_port_state & AD_STATE_LACP_ACTIVITY))
+ (!(port->actor_oper_port_state & AD_STATE_LACP_ACTIVITY) && !(port->partner_oper.port_state & AD_STATE_LACP_ACTIVITY))
) {
port->sm_periodic_state = AD_NO_PERIODIC; // next state
}
// If not expired, check if there is some new timeout parameter from the partner state
switch (port->sm_periodic_state) {
case AD_FAST_PERIODIC:
- if (!(port->partner_oper_port_state & AD_STATE_LACP_TIMEOUT)) {
+ if (!(port->partner_oper.port_state & AD_STATE_LACP_TIMEOUT)) {
port->sm_periodic_state = AD_SLOW_PERIODIC; // next state
}
break;
case AD_SLOW_PERIODIC:
- if ((port->partner_oper_port_state & AD_STATE_LACP_TIMEOUT)) {
+ if ((port->partner_oper.port_state & AD_STATE_LACP_TIMEOUT)) {
// stop current timer
port->sm_periodic_timer_counter = 0;
port->sm_periodic_state = AD_PERIODIC_TX; // next state
port->sm_periodic_state = AD_FAST_PERIODIC; // next state
break;
case AD_PERIODIC_TX:
- if (!(port->partner_oper_port_state & AD_STATE_LACP_TIMEOUT)) {
+ if (!(port->partner_oper.port_state & AD_STATE_LACP_TIMEOUT)) {
port->sm_periodic_state = AD_SLOW_PERIODIC; // next state
} else {
port->sm_periodic_state = AD_FAST_PERIODIC; // next state
// check if the state machine was changed
if (port->sm_periodic_state != last_state) {
- dprintk("Periodic Machine: Port=%d, Last State=%d, Curr State=%d\n", port->actor_port_number, last_state, port->sm_periodic_state);
+ pr_debug("Periodic Machine: Port=%d, Last State=%d, Curr State=%d\n", port->actor_port_number, last_state, port->sm_periodic_state);
switch (port->sm_periodic_state) {
case AD_NO_PERIODIC:
port->sm_periodic_timer_counter = 0; // zero timer
port->next_port_in_aggregator=NULL;
port->actor_port_aggregator_identifier=0;
- dprintk("Port %d left LAG %d\n", port->actor_port_number, temp_aggregator->aggregator_identifier);
+ pr_debug("Port %d left LAG %d\n", port->actor_port_number, temp_aggregator->aggregator_identifier);
// if the aggregator is empty, clear its parameters, and set it ready to be attached
if (!temp_aggregator->lag_ports) {
ad_clear_agg(temp_aggregator);
}
// check if current aggregator suits us
if (((aggregator->actor_oper_aggregator_key == port->actor_oper_port_key) && // if all parameters match AND
- !MAC_ADDRESS_COMPARE(&(aggregator->partner_system), &(port->partner_oper_system)) &&
- (aggregator->partner_system_priority == port->partner_oper_system_priority) &&
- (aggregator->partner_oper_aggregator_key == port->partner_oper_key)
+ !MAC_ADDRESS_COMPARE(&(aggregator->partner_system), &(port->partner_oper.system)) &&
+ (aggregator->partner_system_priority == port->partner_oper.system_priority) &&
+ (aggregator->partner_oper_aggregator_key == port->partner_oper.key)
) &&
- ((MAC_ADDRESS_COMPARE(&(port->partner_oper_system), &(null_mac_addr)) && // partner answers
+ ((MAC_ADDRESS_COMPARE(&(port->partner_oper.system), &(null_mac_addr)) && // partner answers
!aggregator->is_individual) // but is not individual OR
)
) {
port->next_port_in_aggregator=aggregator->lag_ports;
port->aggregator->num_of_ports++;
aggregator->lag_ports=port;
- dprintk("Port %d joined LAG %d(existing LAG)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
+ pr_debug("Port %d joined LAG %d(existing LAG)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
// mark this port as selected
port->sm_vars |= AD_PORT_SELECTED;
port->aggregator->actor_admin_aggregator_key = port->actor_admin_port_key;
port->aggregator->actor_oper_aggregator_key = port->actor_oper_port_key;
- port->aggregator->partner_system=port->partner_oper_system;
- port->aggregator->partner_system_priority = port->partner_oper_system_priority;
- port->aggregator->partner_oper_aggregator_key = port->partner_oper_key;
+ port->aggregator->partner_system=port->partner_oper.system;
+ port->aggregator->partner_system_priority = port->partner_oper.system_priority;
+ port->aggregator->partner_oper_aggregator_key = port->partner_oper.key;
port->aggregator->receive_state = 1;
port->aggregator->transmit_state = 1;
port->aggregator->lag_ports = port;
// mark this port as selected
port->sm_vars |= AD_PORT_SELECTED;
- dprintk("Port %d joined LAG %d(new LAG)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
+ pr_debug("Port %d joined LAG %d(new LAG)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
} else {
printk(KERN_ERR DRV_NAME ": %s: Port %d (on %s) did not find a suitable aggregator\n",
port->slave->dev->master->name,
// else set ready=FALSE in all aggregator's ports
__set_agg_ports_ready(port->aggregator, __agg_ports_are_ready(port->aggregator));
- if (!__check_agg_selection_timer(port) && (aggregator = __get_first_agg(port))) {
- ad_agg_selection_logic(aggregator);
+ aggregator = __get_first_agg(port);
+ ad_agg_selection_logic(aggregator);
+}
+
+/*
+ * Decide if "agg" is a better choice for the new active aggregator that
+ * the current best, according to the ad_select policy.
+ */
+static struct aggregator *ad_agg_selection_test(struct aggregator *best,
+ struct aggregator *curr)
+{
+ /*
+ * 0. If no best, select current.
+ *
+ * 1. If the current agg is not individual, and the best is
+ * individual, select current.
+ *
+ * 2. If current agg is individual and the best is not, keep best.
+ *
+ * 3. Therefore, current and best are both individual or both not
+ * individual, so:
+ *
+ * 3a. If current agg partner replied, and best agg partner did not,
+ * select current.
+ *
+ * 3b. If current agg partner did not reply and best agg partner
+ * did reply, keep best.
+ *
+ * 4. Therefore, current and best both have partner replies or
+ * both do not, so perform selection policy:
+ *
+ * BOND_AD_COUNT: Select by count of ports. If count is equal,
+ * select by bandwidth.
+ *
+ * BOND_AD_STABLE, BOND_AD_BANDWIDTH: Select by bandwidth.
+ */
+ if (!best)
+ return curr;
+
+ if (!curr->is_individual && best->is_individual)
+ return curr;
+
+ if (curr->is_individual && !best->is_individual)
+ return best;
+
+ if (__agg_has_partner(curr) && !__agg_has_partner(best))
+ return curr;
+
+ if (!__agg_has_partner(curr) && __agg_has_partner(best))
+ return best;
+
+ switch (__get_agg_selection_mode(curr->lag_ports)) {
+ case BOND_AD_COUNT:
+ if (curr->num_of_ports > best->num_of_ports)
+ return curr;
+
+ if (curr->num_of_ports < best->num_of_ports)
+ return best;
+
+ /*FALLTHROUGH*/
+ case BOND_AD_STABLE:
+ case BOND_AD_BANDWIDTH:
+ if (__get_agg_bandwidth(curr) > __get_agg_bandwidth(best))
+ return curr;
+
+ break;
+
+ default:
+ printk(KERN_WARNING DRV_NAME
+ ": %s: Impossible agg select mode %d\n",
+ curr->slave->dev->master->name,
+ __get_agg_selection_mode(curr->lag_ports));
+ break;
}
+
+ return best;
}
/**
* @aggregator: the aggregator we're looking at
*
* It is assumed that only one aggregator may be selected for a team.
- * The logic of this function is to select (at first time) the aggregator with
- * the most ports attached to it, and to reselect the active aggregator only if
- * the previous aggregator has no more ports related to it.
+ *
+ * The logic of this function is to select the aggregator according to
+ * the ad_select policy:
+ *
+ * BOND_AD_STABLE: select the aggregator with the most ports attached to
+ * it, and to reselect the active aggregator only if the previous
+ * aggregator has no more ports related to it.
+ *
+ * BOND_AD_BANDWIDTH: select the aggregator with the highest total
+ * bandwidth, and reselect whenever a link state change takes place or the
+ * set of slaves in the bond changes.
+ *
+ * BOND_AD_COUNT: select the aggregator with largest number of ports
+ * (slaves), and reselect whenever a link state change takes place or the
+ * set of slaves in the bond changes.
*
* FIXME: this function MUST be called with the first agg in the bond, or
* __get_active_agg() won't work correctly. This function should be better
* called with the bond itself, and retrieve the first agg from it.
*/
-static void ad_agg_selection_logic(struct aggregator *aggregator)
+static void ad_agg_selection_logic(struct aggregator *agg)
{
- struct aggregator *best_aggregator = NULL, *active_aggregator = NULL;
- struct aggregator *last_active_aggregator = NULL, *origin_aggregator;
+ struct aggregator *best, *active, *origin;
struct port *port;
- u16 num_of_aggs=0;
- origin_aggregator = aggregator;
+ origin = agg;
- //get current active aggregator
- last_active_aggregator = __get_active_agg(aggregator);
+ active = __get_active_agg(agg);
+ best = active;
- // search for the aggregator with the most ports attached to it.
do {
- // count how many candidate lag's we have
- if (aggregator->lag_ports) {
- num_of_aggs++;
- }
- if (aggregator->is_active && !aggregator->is_individual && // if current aggregator is the active aggregator
- MAC_ADDRESS_COMPARE(&(aggregator->partner_system), &(null_mac_addr))) { // and partner answers to 802.3ad PDUs
- if (aggregator->num_of_ports) { // if any ports attached to the current aggregator
- best_aggregator=NULL; // disregard the best aggregator that was chosen by now
- break; // stop the selection of other aggregator if there are any ports attached to this active aggregator
- } else { // no ports attached to this active aggregator
- aggregator->is_active = 0; // mark this aggregator as not active anymore
+ agg->is_active = 0;
+
+ if (agg->num_of_ports)
+ best = ad_agg_selection_test(best, agg);
+
+ } while ((agg = __get_next_agg(agg)));
+
+ if (best &&
+ __get_agg_selection_mode(best->lag_ports) == BOND_AD_STABLE) {
+ /*
+ * For the STABLE policy, don't replace the old active
+ * aggregator if it's still active (it has an answering
+ * partner) or if both the best and active don't have an
+ * answering partner.
+ */
+ if (active && active->lag_ports &&
+ active->lag_ports->is_enabled &&
+ (__agg_has_partner(active) ||
+ (!__agg_has_partner(active) && !__agg_has_partner(best)))) {
+ if (!(!active->actor_oper_aggregator_key &&
+ best->actor_oper_aggregator_key)) {
+ best = NULL;
+ active->is_active = 1;
}
}
- if (aggregator->num_of_ports) { // if any ports attached
- if (best_aggregator) { // if there is a candidte aggregator
- //The reasons for choosing new best aggregator:
- // 1. if current agg is NOT individual and the best agg chosen so far is individual OR
- // current and best aggs are both individual or both not individual, AND
- // 2a. current agg partner reply but best agg partner do not reply OR
- // 2b. current agg partner reply OR current agg partner do not reply AND best agg partner also do not reply AND
- // current has more ports/bandwidth, or same amount of ports but current has faster ports, THEN
- // current agg become best agg so far
-
- //if current agg is NOT individual and the best agg chosen so far is individual change best_aggregator
- if (!aggregator->is_individual && best_aggregator->is_individual) {
- best_aggregator=aggregator;
- }
- // current and best aggs are both individual or both not individual
- else if ((aggregator->is_individual && best_aggregator->is_individual) ||
- (!aggregator->is_individual && !best_aggregator->is_individual)) {
- // current and best aggs are both individual or both not individual AND
- // current agg partner reply but best agg partner do not reply
- if ((MAC_ADDRESS_COMPARE(&(aggregator->partner_system), &(null_mac_addr)) &&
- !MAC_ADDRESS_COMPARE(&(best_aggregator->partner_system), &(null_mac_addr)))) {
- best_aggregator=aggregator;
- }
- // current agg partner reply OR current agg partner do not reply AND best agg partner also do not reply
- else if (! (!MAC_ADDRESS_COMPARE(&(aggregator->partner_system), &(null_mac_addr)) &&
- MAC_ADDRESS_COMPARE(&(best_aggregator->partner_system), &(null_mac_addr)))) {
- if ((__get_agg_selection_mode(aggregator->lag_ports) == AD_BANDWIDTH)&&
- (__get_agg_bandwidth(aggregator) > __get_agg_bandwidth(best_aggregator))) {
- best_aggregator=aggregator;
- } else if (__get_agg_selection_mode(aggregator->lag_ports) == AD_COUNT) {
- if (((aggregator->num_of_ports > best_aggregator->num_of_ports) &&
- (aggregator->actor_oper_aggregator_key & AD_SPEED_KEY_BITS))||
- ((aggregator->num_of_ports == best_aggregator->num_of_ports) &&
- ((u16)(aggregator->actor_oper_aggregator_key & AD_SPEED_KEY_BITS) >
- (u16)(best_aggregator->actor_oper_aggregator_key & AD_SPEED_KEY_BITS)))) {
- best_aggregator=aggregator;
- }
- }
- }
- }
- } else {
- best_aggregator=aggregator;
- }
- }
- aggregator->is_active = 0; // mark all aggregators as not active anymore
- } while ((aggregator = __get_next_agg(aggregator)));
-
- // if we have new aggregator selected, don't replace the old aggregator if it has an answering partner,
- // or if both old aggregator and new aggregator don't have answering partner
- if (best_aggregator) {
- if (last_active_aggregator && last_active_aggregator->lag_ports && last_active_aggregator->lag_ports->is_enabled &&
- (MAC_ADDRESS_COMPARE(&(last_active_aggregator->partner_system), &(null_mac_addr)) || // partner answers OR
- (!MAC_ADDRESS_COMPARE(&(last_active_aggregator->partner_system), &(null_mac_addr)) && // both old and new
- !MAC_ADDRESS_COMPARE(&(best_aggregator->partner_system), &(null_mac_addr)))) // partner do not answer
- ) {
- // if new aggregator has link, and old aggregator does not, replace old aggregator.(do nothing)
- // -> don't replace otherwise.
- if (!(!last_active_aggregator->actor_oper_aggregator_key && best_aggregator->actor_oper_aggregator_key)) {
- best_aggregator=NULL;
- last_active_aggregator->is_active = 1; // don't replace good old aggregator
+ }
- }
- }
+ if (best && (best == active)) {
+ best = NULL;
+ active->is_active = 1;
}
// if there is new best aggregator, activate it
- if (best_aggregator) {
- for (aggregator = __get_first_agg(best_aggregator->lag_ports);
- aggregator;
- aggregator = __get_next_agg(aggregator)) {
-
- dprintk("Agg=%d; Ports=%d; a key=%d; p key=%d; Indiv=%d; Active=%d\n",
- aggregator->aggregator_identifier, aggregator->num_of_ports,
- aggregator->actor_oper_aggregator_key, aggregator->partner_oper_aggregator_key,
- aggregator->is_individual, aggregator->is_active);
+ if (best) {
+ pr_debug("best Agg=%d; P=%d; a k=%d; p k=%d; Ind=%d; Act=%d\n",
+ best->aggregator_identifier, best->num_of_ports,
+ best->actor_oper_aggregator_key,
+ best->partner_oper_aggregator_key,
+ best->is_individual, best->is_active);
+ pr_debug("best ports %p slave %p %s\n",
+ best->lag_ports, best->slave,
+ best->slave ? best->slave->dev->name : "NULL");
+
+ for (agg = __get_first_agg(best->lag_ports); agg;
+ agg = __get_next_agg(agg)) {
+
+ pr_debug("Agg=%d; P=%d; a k=%d; p k=%d; Ind=%d; Act=%d\n",
+ agg->aggregator_identifier, agg->num_of_ports,
+ agg->actor_oper_aggregator_key,
+ agg->partner_oper_aggregator_key,
+ agg->is_individual, agg->is_active);
}
// check if any partner replys
- if (best_aggregator->is_individual) {
- printk(KERN_WARNING DRV_NAME ": %s: Warning: No 802.3ad response from "
- "the link partner for any adapters in the bond\n",
- best_aggregator->slave->dev->master->name);
+ if (best->is_individual) {
+ printk(KERN_WARNING DRV_NAME ": %s: Warning: No 802.3ad"
+ " response from the link partner for any"
+ " adapters in the bond\n",
+ best->slave->dev->master->name);
}
- // check if there are more than one aggregator
- if (num_of_aggs > 1) {
- dprintk("Warning: More than one Link Aggregation Group was "
- "found in the bond. Only one group will function in the bond\n");
- }
-
- best_aggregator->is_active = 1;
- dprintk("LAG %d choosed as the active LAG\n", best_aggregator->aggregator_identifier);
- dprintk("Agg=%d; Ports=%d; a key=%d; p key=%d; Indiv=%d; Active=%d\n",
- best_aggregator->aggregator_identifier, best_aggregator->num_of_ports,
- best_aggregator->actor_oper_aggregator_key, best_aggregator->partner_oper_aggregator_key,
- best_aggregator->is_individual, best_aggregator->is_active);
+ best->is_active = 1;
+ pr_debug("LAG %d chosen as the active LAG\n",
+ best->aggregator_identifier);
+ pr_debug("Agg=%d; P=%d; a k=%d; p k=%d; Ind=%d; Act=%d\n",
+ best->aggregator_identifier, best->num_of_ports,
+ best->actor_oper_aggregator_key,
+ best->partner_oper_aggregator_key,
+ best->is_individual, best->is_active);
// disable the ports that were related to the former active_aggregator
- if (last_active_aggregator) {
- for (port=last_active_aggregator->lag_ports; port; port=port->next_port_in_aggregator) {
+ if (active) {
+ for (port = active->lag_ports; port;
+ port = port->next_port_in_aggregator) {
__disable_port(port);
}
}
}
- // if the selected aggregator is of join individuals(partner_system is NULL), enable their ports
- active_aggregator = __get_active_agg(origin_aggregator);
+ /*
+ * if the selected aggregator is of join individuals
+ * (partner_system is NULL), enable their ports
+ */
+ active = __get_active_agg(origin);
- if (active_aggregator) {
- if (!MAC_ADDRESS_COMPARE(&(active_aggregator->partner_system), &(null_mac_addr))) {
- for (port=active_aggregator->lag_ports; port; port=port->next_port_in_aggregator) {
+ if (active) {
+ if (!__agg_has_partner(active)) {
+ for (port = active->lag_ports; port;
+ port = port->next_port_in_aggregator) {
__enable_port(port);
}
}
}
+
+ if (origin->slave) {
+ struct bonding *bond;
+
+ bond = bond_get_bond_by_slave(origin->slave);
+ if (bond)
+ bond_3ad_set_carrier(bond);
+ }
}
/**
aggregator->lag_ports = NULL;
aggregator->is_active = 0;
aggregator->num_of_ports = 0;
- dprintk("LAG %d was cleared\n", aggregator->aggregator_identifier);
+ pr_debug("LAG %d was cleared\n", aggregator->aggregator_identifier);
}
}
*/
static void ad_initialize_port(struct port *port, int lacp_fast)
{
+ static const struct port_params tmpl = {
+ .system_priority = 0xffff,
+ .key = 1,
+ .port_number = 1,
+ .port_priority = 0xff,
+ .port_state = 1,
+ };
+
if (port) {
port->actor_port_number = 1;
port->actor_port_priority = 0xff;
port->actor_oper_port_state |= AD_STATE_LACP_TIMEOUT;
}
- port->partner_admin_system = null_mac_addr;
- port->partner_oper_system = null_mac_addr;
- port->partner_admin_system_priority = 0xffff;
- port->partner_oper_system_priority = 0xffff;
- port->partner_admin_key = 1;
- port->partner_oper_key = 1;
- port->partner_admin_port_number = 1;
- port->partner_oper_port_number = 1;
- port->partner_admin_port_priority = 0xff;
- port->partner_oper_port_priority = 0xff;
- port->partner_admin_port_state = 1;
- port->partner_oper_port_state = 1;
+ memcpy(&port->partner_admin, &tmpl, sizeof(tmpl));
+ memcpy(&port->partner_oper, &tmpl, sizeof(tmpl));
+
port->is_enabled = 1;
// ****** private parameters ******
port->sm_vars = 0x3;
static void ad_enable_collecting_distributing(struct port *port)
{
if (port->aggregator->is_active) {
- dprintk("Enabling port %d(LAG %d)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
+ pr_debug("Enabling port %d(LAG %d)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
__enable_port(port);
}
}
static void ad_disable_collecting_distributing(struct port *port)
{
if (port->aggregator && MAC_ADDRESS_COMPARE(&(port->aggregator->partner_system), &(null_mac_addr))) {
- dprintk("Disabling port %d(LAG %d)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
+ pr_debug("Disabling port %d(LAG %d)\n", port->actor_port_number, port->aggregator->aggregator_identifier);
__disable_port(port);
}
}
// send the marker information
if (ad_marker_send(port, &marker) >= 0) {
- dprintk("Sent Marker Information on port %d\n", port->actor_port_number);
+ pr_debug("Sent Marker Information on port %d\n", port->actor_port_number);
}
}
#endif
// send the marker response
if (ad_marker_send(port, &marker) >= 0) {
- dprintk("Sent Marker Response on port %d\n", port->actor_port_number);
+ pr_debug("Sent Marker Response on port %d\n", port->actor_port_number);
}
}
// Check aggregators status in team every T seconds
#define AD_AGGREGATOR_SELECTION_TIMER 8
+/*
+ * bond_3ad_initiate_agg_selection(struct bonding *bond)
+ *
+ * Set the aggregation selection timer, to initiate an agg selection in
+ * the very near future. Called during first initialization, and during
+ * any down to up transitions of the bond.
+ */
+void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout)
+{
+ BOND_AD_INFO(bond).agg_select_timer = timeout;
+ BOND_AD_INFO(bond).agg_select_mode = bond->params.ad_select;
+}
+
static u16 aggregator_identifier;
/**
// initialize how many times this module is called in one second(should be about every 100ms)
ad_ticks_per_sec = tick_resolution;
- // initialize the aggregator selection timer(to activate an aggregation selection after initialize)
- BOND_AD_INFO(bond).agg_select_timer = (AD_AGGREGATOR_SELECTION_TIMER * ad_ticks_per_sec);
- BOND_AD_INFO(bond).agg_select_mode = AD_BANDWIDTH;
+ bond_3ad_initiate_agg_selection(bond,
+ AD_AGGREGATOR_SELECTION_TIMER *
+ ad_ticks_per_sec);
}
}
return;
}
- dprintk("Unbinding Link Aggregation Group %d\n", aggregator->aggregator_identifier);
+ pr_debug("Unbinding Link Aggregation Group %d\n", aggregator->aggregator_identifier);
/* Tell the partner that this port is not suitable for aggregation */
port->actor_oper_port_state &= ~AD_STATE_AGGREGATION;
// if new aggregator found, copy the aggregator's parameters
// and connect the related lag_ports to the new aggregator
if ((new_aggregator) && ((!new_aggregator->lag_ports) || ((new_aggregator->lag_ports == port) && !new_aggregator->lag_ports->next_port_in_aggregator))) {
- dprintk("Some port(s) related to LAG %d - replaceing with LAG %d\n", aggregator->aggregator_identifier, new_aggregator->aggregator_identifier);
+ pr_debug("Some port(s) related to LAG %d - replaceing with LAG %d\n", aggregator->aggregator_identifier, new_aggregator->aggregator_identifier);
if ((new_aggregator->lag_ports == port) && new_aggregator->is_active) {
printk(KERN_INFO DRV_NAME ": %s: Removing an active aggregator\n",
}
}
- dprintk("Unbinding port %d\n", port->actor_port_number);
+ pr_debug("Unbinding port %d\n", port->actor_port_number);
// find the aggregator that this port is connected to
temp_aggregator = __get_first_agg(port);
for (; temp_aggregator; temp_aggregator = __get_next_agg(temp_aggregator)) {
switch (lacpdu->subtype) {
case AD_TYPE_LACPDU:
- dprintk("Received LACPDU on port %d\n", port->actor_port_number);
+ pr_debug("Received LACPDU on port %d\n", port->actor_port_number);
ad_rx_machine(lacpdu, port);
break;
switch (((struct bond_marker *)lacpdu)->tlv_type) {
case AD_MARKER_INFORMATION_SUBTYPE:
- dprintk("Received Marker Information on port %d\n", port->actor_port_number);
+ pr_debug("Received Marker Information on port %d\n", port->actor_port_number);
ad_marker_info_received((struct bond_marker *)lacpdu, port);
break;
case AD_MARKER_RESPONSE_SUBTYPE:
- dprintk("Received Marker Response on port %d\n", port->actor_port_number);
+ pr_debug("Received Marker Response on port %d\n", port->actor_port_number);
ad_marker_response_received((struct bond_marker *)lacpdu, port);
break;
default:
- dprintk("Received an unknown Marker subtype on slot %d\n", port->actor_port_number);
+ pr_debug("Received an unknown Marker subtype on slot %d\n", port->actor_port_number);
}
}
}
port->actor_admin_port_key &= ~AD_SPEED_KEY_BITS;
port->actor_oper_port_key=port->actor_admin_port_key |= (__get_link_speed(port) << 1);
- dprintk("Port %d changed speed\n", port->actor_port_number);
+ pr_debug("Port %d changed speed\n", port->actor_port_number);
// there is no need to reselect a new aggregator, just signal the
// state machines to reinitialize
port->sm_vars |= AD_PORT_BEGIN;
port->actor_admin_port_key &= ~AD_DUPLEX_KEY_BITS;
port->actor_oper_port_key=port->actor_admin_port_key |= __get_duplex(port);
- dprintk("Port %d changed duplex\n", port->actor_port_number);
+ pr_debug("Port %d changed duplex\n", port->actor_port_number);
// there is no need to reselect a new aggregator, just signal the
// state machines to reinitialize
port->sm_vars |= AD_PORT_BEGIN;
int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
{
struct slave *slave, *start_at;
- struct bonding *bond = dev->priv;
+ struct bonding *bond = netdev_priv(dev);
int slave_agg_no;
int slaves_in_agg;
int agg_id;
int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type* ptype, struct net_device *orig_dev)
{
- struct bonding *bond = dev->priv;
+ struct bonding *bond = netdev_priv(dev);
struct slave *slave = NULL;
int ret = NET_RX_DROP;
goto out;
read_lock(&bond->lock);
- slave = bond_get_slave_by_dev((struct bonding *)dev->priv, orig_dev);
+ slave = bond_get_slave_by_dev((struct bonding *)netdev_priv(dev),
+ orig_dev);
if (!slave)
goto out_unlock;
projects / mirror_ubuntu-zesty-kernel.git / blobdiff