forked from Minki/linux
Merge branch 'bonding'
Ding Tianhong says: ==================== bonding: slight optimization for bonding This serious of patches will slight optimize the mac address compare and xmit path for bonding, also make some cleanups. Julia was using ether_addr_equal_64bits to instead of ether_addr_equal, it is really a hard work and she may did not make patch for bonding yet, so I have do it in this patchset and that she could miss the bonding drivers. resend and add cc for Julia. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
commit
8169d10cd9
@ -90,8 +90,9 @@
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#define AD_LINK_SPEED_BITMASK_10000MBPS 0x10
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//endalloun
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// compare MAC addresses
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#define MAC_ADDRESS_COMPARE(A, B) memcmp(A, B, ETH_ALEN)
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/* compare MAC addresses */
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#define MAC_ADDRESS_EQUAL(A, B) \
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ether_addr_equal_64bits((const u8 *)A, (const u8 *)B)
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static struct mac_addr null_mac_addr = { { 0, 0, 0, 0, 0, 0 } };
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static u16 ad_ticks_per_sec;
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@ -417,17 +418,18 @@ static u16 __ad_timer_to_ticks(u16 timer_type, u16 par)
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*/
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static void __choose_matched(struct lacpdu *lacpdu, struct port *port)
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{
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// check if all parameters are alike
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/* check if all parameters are alike
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* or this is individual link(aggregation == FALSE)
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* then update the state machine Matched variable.
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*/
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if (((ntohs(lacpdu->partner_port) == port->actor_port_number) &&
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(ntohs(lacpdu->partner_port_priority) == port->actor_port_priority) &&
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!MAC_ADDRESS_COMPARE(&(lacpdu->partner_system), &(port->actor_system)) &&
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MAC_ADDRESS_EQUAL(&(lacpdu->partner_system), &(port->actor_system)) &&
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(ntohs(lacpdu->partner_system_priority) == port->actor_system_priority) &&
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(ntohs(lacpdu->partner_key) == port->actor_oper_port_key) &&
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((lacpdu->partner_state & AD_STATE_AGGREGATION) == (port->actor_oper_port_state & AD_STATE_AGGREGATION))) ||
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// or this is individual link(aggregation == FALSE)
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((lacpdu->actor_state & AD_STATE_AGGREGATION) == 0)
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) {
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// update the state machine Matched variable
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port->sm_vars |= AD_PORT_MATCHED;
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} else {
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port->sm_vars &= ~AD_PORT_MATCHED;
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@ -507,14 +509,15 @@ static void __update_selected(struct lacpdu *lacpdu, struct port *port)
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if (lacpdu && port) {
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const struct port_params *partner = &port->partner_oper;
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// check if any parameter is different
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/* check if any parameter is different then
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* update the state machine selected variable.
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*/
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if (ntohs(lacpdu->actor_port) != partner->port_number ||
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ntohs(lacpdu->actor_port_priority) != partner->port_priority ||
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MAC_ADDRESS_COMPARE(&lacpdu->actor_system, &partner->system) ||
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!MAC_ADDRESS_EQUAL(&lacpdu->actor_system, &partner->system) ||
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ntohs(lacpdu->actor_system_priority) != partner->system_priority ||
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ntohs(lacpdu->actor_key) != partner->key ||
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(lacpdu->actor_state & AD_STATE_AGGREGATION) != (partner->port_state & AD_STATE_AGGREGATION)) {
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// update the state machine Selected variable
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port->sm_vars &= ~AD_PORT_SELECTED;
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}
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}
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@ -538,15 +541,16 @@ static void __update_default_selected(struct port *port)
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const struct port_params *admin = &port->partner_admin;
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const struct port_params *oper = &port->partner_oper;
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// check if any parameter is different
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/* check if any parameter is different then
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* update the state machine selected variable.
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*/
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if (admin->port_number != oper->port_number ||
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admin->port_priority != oper->port_priority ||
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MAC_ADDRESS_COMPARE(&admin->system, &oper->system) ||
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!MAC_ADDRESS_EQUAL(&admin->system, &oper->system) ||
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admin->system_priority != oper->system_priority ||
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admin->key != oper->key ||
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(admin->port_state & AD_STATE_AGGREGATION)
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!= (oper->port_state & AD_STATE_AGGREGATION)) {
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// update the state machine Selected variable
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port->sm_vars &= ~AD_PORT_SELECTED;
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}
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}
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@ -566,12 +570,14 @@ static void __update_default_selected(struct port *port)
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*/
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static void __update_ntt(struct lacpdu *lacpdu, struct port *port)
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{
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// validate lacpdu and port
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/* validate lacpdu and port */
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if (lacpdu && port) {
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// check if any parameter is different
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/* check if any parameter is different then
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* update the port->ntt.
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*/
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if ((ntohs(lacpdu->partner_port) != port->actor_port_number) ||
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(ntohs(lacpdu->partner_port_priority) != port->actor_port_priority) ||
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MAC_ADDRESS_COMPARE(&(lacpdu->partner_system), &(port->actor_system)) ||
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!MAC_ADDRESS_EQUAL(&(lacpdu->partner_system), &(port->actor_system)) ||
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(ntohs(lacpdu->partner_system_priority) != port->actor_system_priority) ||
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(ntohs(lacpdu->partner_key) != port->actor_oper_port_key) ||
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((lacpdu->partner_state & AD_STATE_LACP_ACTIVITY) != (port->actor_oper_port_state & AD_STATE_LACP_ACTIVITY)) ||
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@ -579,7 +585,6 @@ static void __update_ntt(struct lacpdu *lacpdu, struct port *port)
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((lacpdu->partner_state & AD_STATE_SYNCHRONIZATION) != (port->actor_oper_port_state & AD_STATE_SYNCHRONIZATION)) ||
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((lacpdu->partner_state & AD_STATE_AGGREGATION) != (port->actor_oper_port_state & AD_STATE_AGGREGATION))
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) {
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port->ntt = true;
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}
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}
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@ -1076,9 +1081,8 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port)
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port->actor_oper_port_state &= ~AD_STATE_EXPIRED;
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break;
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case AD_RX_CURRENT:
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// detect loopback situation
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if (!MAC_ADDRESS_COMPARE(&(lacpdu->actor_system), &(port->actor_system))) {
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// INFO_RECEIVED_LOOPBACK_FRAMES
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/* detect loopback situation */
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if (MAC_ADDRESS_EQUAL(&(lacpdu->actor_system), &(port->actor_system))) {
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pr_err("%s: An illegal loopback occurred on adapter (%s).\n"
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"Check the configuration to verify that all adapters are connected to 802.3ad compliant switch ports\n",
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port->slave->bond->dev->name, port->slave->dev->name);
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@ -1090,7 +1094,7 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port)
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port->sm_rx_timer_counter = __ad_timer_to_ticks(AD_CURRENT_WHILE_TIMER, (u16)(port->actor_oper_port_state & AD_STATE_LACP_TIMEOUT));
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port->actor_oper_port_state &= ~AD_STATE_EXPIRED;
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break;
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default: //to silence the compiler
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default: /* to silence the compiler */
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break;
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}
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}
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@ -1281,17 +1285,17 @@ static void ad_port_selection_logic(struct port *port)
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free_aggregator = aggregator;
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continue;
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}
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// check if current aggregator suits us
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if (((aggregator->actor_oper_aggregator_key == port->actor_oper_port_key) && // if all parameters match AND
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!MAC_ADDRESS_COMPARE(&(aggregator->partner_system), &(port->partner_oper.system)) &&
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/* check if current aggregator suits us */
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if (((aggregator->actor_oper_aggregator_key == port->actor_oper_port_key) && /* if all parameters match AND */
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MAC_ADDRESS_EQUAL(&(aggregator->partner_system), &(port->partner_oper.system)) &&
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(aggregator->partner_system_priority == port->partner_oper.system_priority) &&
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(aggregator->partner_oper_aggregator_key == port->partner_oper.key)
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) &&
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((MAC_ADDRESS_COMPARE(&(port->partner_oper.system), &(null_mac_addr)) && // partner answers
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!aggregator->is_individual) // but is not individual OR
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((!MAC_ADDRESS_EQUAL(&(port->partner_oper.system), &(null_mac_addr)) && /* partner answers */
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!aggregator->is_individual) /* but is not individual OR */
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)
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) {
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// attach to the founded aggregator
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/* attach to the founded aggregator */
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port->aggregator = aggregator;
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port->actor_port_aggregator_identifier =
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port->aggregator->aggregator_identifier;
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@ -1705,7 +1709,7 @@ static void ad_enable_collecting_distributing(struct port *port)
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*/
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static void ad_disable_collecting_distributing(struct port *port)
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{
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if (port->aggregator && MAC_ADDRESS_COMPARE(&(port->aggregator->partner_system), &(null_mac_addr))) {
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if (port->aggregator && !MAC_ADDRESS_EQUAL(&(port->aggregator->partner_system), &(null_mac_addr))) {
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pr_debug("Disabling port %d(LAG %d)\n",
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port->actor_port_number,
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port->aggregator->aggregator_identifier);
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@ -1826,8 +1830,8 @@ static u16 aggregator_identifier;
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*/
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void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution)
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{
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// check that the bond is not initialized yet
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if (MAC_ADDRESS_COMPARE(&(BOND_AD_INFO(bond).system.sys_mac_addr),
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/* check that the bond is not initialized yet */
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if (!MAC_ADDRESS_EQUAL(&(BOND_AD_INFO(bond).system.sys_mac_addr),
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bond->dev->dev_addr)) {
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aggregator_identifier = 0;
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@ -1851,22 +1855,16 @@ void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution)
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* Returns: 0 on success
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* < 0 on error
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*/
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int bond_3ad_bind_slave(struct slave *slave)
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void bond_3ad_bind_slave(struct slave *slave)
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{
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struct bonding *bond = bond_get_bond_by_slave(slave);
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struct port *port;
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struct aggregator *aggregator;
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if (bond == NULL) {
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pr_err("%s: The slave %s is not attached to its bond\n",
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slave->bond->dev->name, slave->dev->name);
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return -1;
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}
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//check that the slave has not been initialized yet.
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/* check that the slave has not been initialized yet. */
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if (SLAVE_AD_INFO(slave).port.slave != slave) {
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// port initialization
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/* port initialization */
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port = &(SLAVE_AD_INFO(slave).port);
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ad_initialize_port(port, bond->params.lacp_fast);
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@ -1874,28 +1872,30 @@ int bond_3ad_bind_slave(struct slave *slave)
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__initialize_port_locks(slave);
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port->slave = slave;
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port->actor_port_number = SLAVE_AD_INFO(slave).id;
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// key is determined according to the link speed, duplex and user key(which is yet not supported)
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// ------------------------------------------------------------
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// Port key : | User key | Speed |Duplex|
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// ------------------------------------------------------------
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// 16 6 1 0
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port->actor_admin_port_key = 0; // initialize this parameter
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/* key is determined according to the link speed, duplex and user key(which
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* is yet not supported)
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* ------------------------------------------------------------
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* Port key : | User key | Speed |Duplex|
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* ------------------------------------------------------------
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* 16 6 1 0
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*/
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port->actor_admin_port_key = 0; /* initialize this parameter */
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port->actor_admin_port_key |= __get_duplex(port);
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port->actor_admin_port_key |= (__get_link_speed(port) << 1);
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port->actor_oper_port_key = port->actor_admin_port_key;
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// if the port is not full duplex, then the port should be not lacp Enabled
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/* if the port is not full duplex, then the port should be not lacp Enabled */
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if (!(port->actor_oper_port_key & AD_DUPLEX_KEY_BITS))
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port->sm_vars &= ~AD_PORT_LACP_ENABLED;
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// actor system is the bond's system
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/* actor system is the bond's system */
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port->actor_system = BOND_AD_INFO(bond).system.sys_mac_addr;
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// tx timer(to verify that no more than MAX_TX_IN_SECOND lacpdu's are sent in one second)
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/* tx timer(to verify that no more than MAX_TX_IN_SECOND lacpdu's are sent in one second) */
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port->sm_tx_timer_counter = ad_ticks_per_sec/AD_MAX_TX_IN_SECOND;
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port->aggregator = NULL;
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port->next_port_in_aggregator = NULL;
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__disable_port(port);
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// aggregator initialization
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/* aggregator initialization */
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aggregator = &(SLAVE_AD_INFO(slave).aggregator);
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ad_initialize_agg(aggregator);
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@ -1906,8 +1906,6 @@ int bond_3ad_bind_slave(struct slave *slave)
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aggregator->is_active = 0;
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aggregator->num_of_ports = 0;
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}
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return 0;
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}
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/**
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@ -2397,13 +2395,12 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
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struct list_head *iter;
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int slaves_in_agg;
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int slave_agg_no;
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int res = 1;
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int agg_id;
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if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
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pr_debug("%s: Error: __bond_3ad_get_active_agg_info failed\n",
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dev->name);
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||||
goto out;
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||||
goto err_free;
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||||
}
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||||
slaves_in_agg = ad_info.ports;
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@ -2411,7 +2408,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
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||||
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||||
if (slaves_in_agg == 0) {
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||||
pr_debug("%s: Error: active aggregator is empty\n", dev->name);
|
||||
goto out;
|
||||
goto err_free;
|
||||
}
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||||
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||||
slave_agg_no = bond_xmit_hash(bond, skb, slaves_in_agg);
|
||||
@ -2430,7 +2427,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
|
||||
}
|
||||
|
||||
if (SLAVE_IS_OK(slave)) {
|
||||
res = bond_dev_queue_xmit(bond, skb, slave->dev);
|
||||
bond_dev_queue_xmit(bond, skb, slave->dev);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
@ -2438,21 +2435,22 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
|
||||
if (slave_agg_no >= 0) {
|
||||
pr_err("%s: Error: Couldn't find a slave to tx on for aggregator ID %d\n",
|
||||
dev->name, agg_id);
|
||||
goto out;
|
||||
goto err_free;
|
||||
}
|
||||
|
||||
/* we couldn't find any suitable slave after the agg_no, so use the
|
||||
* first suitable found, if found. */
|
||||
if (first_ok_slave)
|
||||
res = bond_dev_queue_xmit(bond, skb, first_ok_slave->dev);
|
||||
bond_dev_queue_xmit(bond, skb, first_ok_slave->dev);
|
||||
else
|
||||
goto err_free;
|
||||
|
||||
out:
|
||||
if (res) {
|
||||
/* no suitable interface, frame not sent */
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
return NETDEV_TX_OK;
|
||||
err_free:
|
||||
/* no suitable interface, frame not sent */
|
||||
kfree_skb(skb);
|
||||
goto out;
|
||||
}
|
||||
|
||||
int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
|
||||
|
@ -265,7 +265,7 @@ struct ad_slave_info {
|
||||
|
||||
// ================= AD Exported functions to the main bonding code ==================
|
||||
void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution);
|
||||
int bond_3ad_bind_slave(struct slave *slave);
|
||||
void bond_3ad_bind_slave(struct slave *slave);
|
||||
void bond_3ad_unbind_slave(struct slave *slave);
|
||||
void bond_3ad_state_machine_handler(struct work_struct *);
|
||||
void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout);
|
||||
|
@ -1371,7 +1371,6 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
|
||||
int do_tx_balance = 1;
|
||||
u32 hash_index = 0;
|
||||
const u8 *hash_start = NULL;
|
||||
int res = 1;
|
||||
struct ipv6hdr *ip6hdr;
|
||||
|
||||
skb_reset_mac_header(skb);
|
||||
@ -1469,7 +1468,8 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
|
||||
ETH_ALEN);
|
||||
}
|
||||
|
||||
res = bond_dev_queue_xmit(bond, skb, tx_slave->dev);
|
||||
bond_dev_queue_xmit(bond, skb, tx_slave->dev);
|
||||
goto out;
|
||||
} else {
|
||||
if (tx_slave) {
|
||||
_lock_tx_hashtbl(bond);
|
||||
@ -1478,11 +1478,9 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
|
||||
}
|
||||
}
|
||||
|
||||
if (res) {
|
||||
/* no suitable interface, frame not sent */
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
/* no suitable interface, frame not sent */
|
||||
kfree_skb(skb);
|
||||
out:
|
||||
return NETDEV_TX_OK;
|
||||
}
|
||||
|
||||
|
@ -304,7 +304,7 @@ const char *bond_mode_name(int mode)
|
||||
* @skb: hw accel VLAN tagged skb to transmit
|
||||
* @slave_dev: slave that is supposed to xmit this skbuff
|
||||
*/
|
||||
int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
|
||||
void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
|
||||
struct net_device *slave_dev)
|
||||
{
|
||||
skb->dev = slave_dev;
|
||||
@ -317,8 +317,6 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
|
||||
bond_netpoll_send_skb(bond_get_slave_by_dev(bond, slave_dev), skb);
|
||||
else
|
||||
dev_queue_xmit(skb);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -1639,7 +1637,7 @@ err_free:
|
||||
err_undo_flags:
|
||||
/* Enslave of first slave has failed and we need to fix master's mac */
|
||||
if (!bond_has_slaves(bond) &&
|
||||
ether_addr_equal(bond_dev->dev_addr, slave_dev->dev_addr))
|
||||
ether_addr_equal_64bits(bond_dev->dev_addr, slave_dev->dev_addr))
|
||||
eth_hw_addr_random(bond_dev);
|
||||
|
||||
return res;
|
||||
@ -1712,7 +1710,7 @@ static int __bond_release_one(struct net_device *bond_dev,
|
||||
bond->current_arp_slave = NULL;
|
||||
|
||||
if (!all && !bond->params.fail_over_mac) {
|
||||
if (ether_addr_equal(bond_dev->dev_addr, slave->perm_hwaddr) &&
|
||||
if (ether_addr_equal_64bits(bond_dev->dev_addr, slave->perm_hwaddr) &&
|
||||
bond_has_slaves(bond))
|
||||
pr_warn("%s: Warning: the permanent HWaddr of %s - %pM - is still in use by %s. Set the HWaddr of %s to a different address to avoid conflicts.\n",
|
||||
bond_dev->name, slave_dev->name,
|
||||
@ -3673,28 +3671,24 @@ static inline int bond_slave_override(struct bonding *bond,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct slave *slave = NULL;
|
||||
struct slave *check_slave;
|
||||
struct list_head *iter;
|
||||
int res = 1;
|
||||
|
||||
if (!skb->queue_mapping)
|
||||
return 1;
|
||||
|
||||
/* Find out if any slaves have the same mapping as this skb. */
|
||||
bond_for_each_slave_rcu(bond, check_slave, iter) {
|
||||
if (check_slave->queue_id == skb->queue_mapping) {
|
||||
slave = check_slave;
|
||||
bond_for_each_slave_rcu(bond, slave, iter) {
|
||||
if (slave->queue_id == skb->queue_mapping) {
|
||||
if (slave_can_tx(slave)) {
|
||||
bond_dev_queue_xmit(bond, skb, slave->dev);
|
||||
return 0;
|
||||
}
|
||||
/* If the slave isn't UP, use default transmit policy. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* If the slave isn't UP, use default transmit policy. */
|
||||
if (slave && slave->queue_id && IS_UP(slave->dev) &&
|
||||
(slave->link == BOND_LINK_UP)) {
|
||||
res = bond_dev_queue_xmit(bond, skb, slave->dev);
|
||||
}
|
||||
|
||||
return res;
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
@ -416,7 +416,7 @@ static inline bool slave_can_tx(struct slave *slave)
|
||||
struct bond_net;
|
||||
|
||||
int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave);
|
||||
int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
|
||||
void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
|
||||
int bond_create(struct net *net, const char *name);
|
||||
int bond_create_sysfs(struct bond_net *net);
|
||||
void bond_destroy_sysfs(struct bond_net *net);
|
||||
|
Loading…
Reference in New Issue
Block a user