bonding: introduce and use port_params structure
It generally helps to handle those values in various places, using it
might make the code more readable and gives room for other improvements.
The IEEE standard talks about them as "parameter values".
Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 7a108fa..d02e852 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -486,21 +486,21 @@
// validate lacpdu and port
if (lacpdu && port) {
// 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);
- port->partner_oper_port_state = lacpdu->actor_state;
+ 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);
+ port->partner_oper.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;
+ port->partner_oper.port_state |= AD_STATE_SYNCHRONIZATION;
} else {
- port->partner_oper_port_state &= ~AD_STATE_SYNCHRONIZATION;
+ port->partner_oper.port_state &= ~AD_STATE_SYNCHRONIZATION;
}
}
}
@@ -518,12 +518,12 @@
// 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;
+ 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;
// set actor_oper_port_state.defaulted to true
port->actor_oper_port_state |= AD_STATE_DEFAULTED;
@@ -548,12 +548,12 @@
// 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;
@@ -578,12 +578,12 @@
// 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;
@@ -819,12 +819,12 @@
* 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
@@ -973,7 +973,7 @@
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;
@@ -985,7 +985,7 @@
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
@@ -1129,7 +1129,7 @@
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;
@@ -1137,9 +1137,9 @@
//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;
@@ -1219,7 +1219,7 @@
// 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
}
@@ -1233,12 +1233,12 @@
// 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
@@ -1254,7 +1254,7 @@
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
@@ -1353,11 +1353,11 @@
}
// 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
)
) {
@@ -1393,9 +1393,9 @@
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;
@@ -1695,18 +1695,18 @@
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;
+ 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;
port->is_enabled = 1;
// ****** private parameters ******
port->sm_vars = 0x3;
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index a803fe0..d5332cc 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -199,6 +199,15 @@
u16 num_of_ports;
} aggregator_t;
+struct port_params {
+ struct mac_addr system;
+ u16 system_priority;
+ u16 key;
+ u16 port_number;
+ u16 port_priority;
+ u16 port_state;
+};
+
// port structure(43.4.6 in the 802.3ad standard)
typedef struct port {
u16 actor_port_number;
@@ -211,18 +220,10 @@
u16 actor_oper_port_key;
u8 actor_admin_port_state;
u8 actor_oper_port_state;
- struct mac_addr partner_admin_system;
- struct mac_addr partner_oper_system;
- u16 partner_admin_system_priority;
- u16 partner_oper_system_priority;
- u16 partner_admin_key;
- u16 partner_oper_key;
- u16 partner_admin_port_number;
- u16 partner_oper_port_number;
- u16 partner_admin_port_priority;
- u16 partner_oper_port_priority;
- u8 partner_admin_port_state;
- u8 partner_oper_port_state;
+
+ struct port_params partner_admin;
+ struct port_params partner_oper;
+
u16 is_enabled; // BOOLEAN
// ****** PRIVATE PARAMETERS ******
u16 sm_vars; // all state machines variables for this port