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Date: Sun, 17 Oct 2010 00:38:17 -0700
From: Joe Perches <joe@...ches.com>
To: Jay Vosburgh <fubar@...ibm.com>
Cc: bonding-devel@...ts.sourceforge.net,
netdev <netdev@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [RFC PATCH net-next] drivers/net/bonding/bond_3ad: Remove struct
mac_addr and typedef
Use more standard u8 name[ETH_ALEN];
Remove MAC_ADDRESS_COMPARE and use compare_ether_addr
Remove null_mac_addr and use is_zero_ether_addr and memset
Use memcpy for copying ether addresses
Size increases ~200 bytes so it's not great,
but it might be better for style consistency.
$ size drivers/net/bonding/*.o.*
text data bss dec hex filename
25580 776 5800 32156 7d9c drivers/net/bonding/bond_3ad.o.new
25396 776 5808 31980 7cec drivers/net/bonding/bond_3ad.o.old
Signed-off-by: Joe Perches <joe@...ches.com>
---
drivers/net/bonding/bond_3ad.c | 50 ++++++++++++++++++---------------------
drivers/net/bonding/bond_3ad.h | 20 ++++++---------
2 files changed, 31 insertions(+), 39 deletions(-)
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 079b9d1..5a38eef 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -90,10 +90,6 @@
#define AD_LINK_SPEED_BITMASK_10000MBPS 0x10
//endalloun
-// compare MAC addresses
-#define MAC_ADDRESS_COMPARE(A, B) memcmp(A, B, ETH_ALEN)
-
-static struct mac_addr null_mac_addr = {{0, 0, 0, 0, 0, 0}};
static u16 ad_ticks_per_sec;
static const int ad_delta_in_ticks = (AD_TIMER_INTERVAL * HZ) / 1000;
@@ -218,7 +214,7 @@ static inline struct aggregator *__get_next_agg(struct aggregator *aggregator)
*/
static inline int __agg_has_partner(struct aggregator *agg)
{
- return !is_zero_ether_addr(agg->partner_system.mac_addr_value);
+ return !is_zero_ether_addr(agg->partner_system);
}
/**
@@ -478,7 +474,7 @@ static void __choose_matched(struct lacpdu *lacpdu, struct port *port)
// check if all parameters are alike
if (((ntohs(lacpdu->partner_port) == port->actor_port_number) &&
(ntohs(lacpdu->partner_port_priority) == port->actor_port_priority) &&
- !MAC_ADDRESS_COMPARE(&(lacpdu->partner_system), &(port->actor_system)) &&
+ !compare_ether_addr(lacpdu->partner_system, port->actor_system) &&
(ntohs(lacpdu->partner_system_priority) == port->actor_system_priority) &&
(ntohs(lacpdu->partner_key) == port->actor_oper_port_key) &&
((lacpdu->partner_state & AD_STATE_AGGREGATION) == (port->actor_oper_port_state & AD_STATE_AGGREGATION))) ||
@@ -510,7 +506,7 @@ static void __record_pdu(struct lacpdu *lacpdu, struct port *port)
// record the new parameter values for the partner operational
partner->port_number = ntohs(lacpdu->actor_port);
partner->port_priority = ntohs(lacpdu->actor_port_priority);
- partner->system = lacpdu->actor_system;
+ memcpy(partner->system, lacpdu->actor_system, ETH_ALEN);
partner->system_priority = ntohs(lacpdu->actor_system_priority);
partner->key = ntohs(lacpdu->actor_key);
partner->port_state = lacpdu->actor_state;
@@ -568,7 +564,7 @@ static void __update_selected(struct lacpdu *lacpdu, struct port *port)
// check if any parameter is different
if (ntohs(lacpdu->actor_port) != partner->port_number ||
ntohs(lacpdu->actor_port_priority) != partner->port_priority ||
- MAC_ADDRESS_COMPARE(&lacpdu->actor_system, &partner->system) ||
+ compare_ether_addr(lacpdu->actor_system, partner->system) ||
ntohs(lacpdu->actor_system_priority) != partner->system_priority ||
ntohs(lacpdu->actor_key) != partner->key ||
(lacpdu->actor_state & AD_STATE_AGGREGATION) != (partner->port_state & AD_STATE_AGGREGATION)) {
@@ -599,7 +595,7 @@ static void __update_default_selected(struct port *port)
// check if any parameter is different
if (admin->port_number != oper->port_number ||
admin->port_priority != oper->port_priority ||
- MAC_ADDRESS_COMPARE(&admin->system, &oper->system) ||
+ compare_ether_addr(admin->system, oper->system) ||
admin->system_priority != oper->system_priority ||
admin->key != oper->key ||
(admin->port_state & AD_STATE_AGGREGATION)
@@ -629,7 +625,7 @@ static void __update_ntt(struct lacpdu *lacpdu, struct port *port)
// check if any parameter is different
if ((ntohs(lacpdu->partner_port) != port->actor_port_number) ||
(ntohs(lacpdu->partner_port_priority) != port->actor_port_priority) ||
- MAC_ADDRESS_COMPARE(&(lacpdu->partner_system), &(port->actor_system)) ||
+ compare_ether_addr(lacpdu->partner_system, port->actor_system) ||
(ntohs(lacpdu->partner_system_priority) != port->actor_system_priority) ||
(ntohs(lacpdu->partner_key) != port->actor_oper_port_key) ||
((lacpdu->partner_state & AD_STATE_LACP_ACTIVITY) != (port->actor_oper_port_state & AD_STATE_LACP_ACTIVITY)) ||
@@ -787,7 +783,7 @@ static inline void __update_lacpdu_from_port(struct port *port)
*/
lacpdu->actor_system_priority = htons(port->actor_system_priority);
- lacpdu->actor_system = port->actor_system;
+ memcpy(lacpdu->actor_system, port->actor_system, ETH_ALEN);
lacpdu->actor_key = htons(port->actor_oper_port_key);
lacpdu->actor_port_priority = htons(port->actor_port_priority);
lacpdu->actor_port = htons(port->actor_port_number);
@@ -799,7 +795,7 @@ static inline void __update_lacpdu_from_port(struct port *port)
*/
lacpdu->partner_system_priority = htons(partner->system_priority);
- lacpdu->partner_system = partner->system;
+ memcpy(lacpdu->partner_system, partner->system, ETH_ALEN);
lacpdu->partner_key = htons(partner->key);
lacpdu->partner_port_priority = htons(partner->port_priority);
lacpdu->partner_port = htons(partner->port_number);
@@ -1133,7 +1129,7 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port)
break;
case AD_RX_CURRENT:
// detect loopback situation
- if (!MAC_ADDRESS_COMPARE(&(lacpdu->actor_system), &(port->actor_system))) {
+ if (!compare_ether_addr(lacpdu->actor_system, port->actor_system)) {
// INFO_RECEIVED_LOOPBACK_FRAMES
pr_err("%s: An illegal loopback occurred on adapter (%s).\n"
"Check the configuration to verify that all adapters are connected to 802.3ad compliant switch ports\n",
@@ -1340,11 +1336,11 @@ static void ad_port_selection_logic(struct port *port)
}
// 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)) &&
+ !compare_ether_addr(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
+ ((is_zero_ether_addr(port->partner_oper.system) && // partner answers
!aggregator->is_individual) // but is not individual OR
)
) {
@@ -1382,7 +1378,7 @@ static void ad_port_selection_logic(struct port *port)
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;
+ memcpy(port->aggregator->partner_system, port->partner_oper.system, ETH_ALEN);
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;
@@ -1636,7 +1632,7 @@ static void ad_clear_agg(struct aggregator *aggregator)
aggregator->is_individual = false;
aggregator->actor_admin_aggregator_key = 0;
aggregator->actor_oper_aggregator_key = 0;
- aggregator->partner_system = null_mac_addr;
+ memset(aggregator->partner_system, 0, ETH_ALEN);
aggregator->partner_system_priority = 0;
aggregator->partner_oper_aggregator_key = 0;
aggregator->receive_state = 0;
@@ -1659,7 +1655,7 @@ static void ad_initialize_agg(struct aggregator *aggregator)
if (aggregator) {
ad_clear_agg(aggregator);
- aggregator->aggregator_mac_address = null_mac_addr;
+ memset(aggregator->aggregator_mac_address, 0, ETH_ALEN);
aggregator->aggregator_identifier = 0;
aggregator->slave = NULL;
}
@@ -1695,7 +1691,7 @@ static void ad_initialize_port(struct port *port, int lacp_fast)
if (port) {
port->actor_port_number = 1;
port->actor_port_priority = 0xff;
- port->actor_system = null_mac_addr;
+ memset(port->actor_system, 0, ETH_ALEN);
port->actor_system_priority = 0xffff;
port->actor_port_aggregator_identifier = 0;
port->ntt = false;
@@ -1754,7 +1750,7 @@ static void ad_enable_collecting_distributing(struct port *port)
*/
static void ad_disable_collecting_distributing(struct port *port)
{
- if (port->aggregator && MAC_ADDRESS_COMPARE(&(port->aggregator->partner_system), &(null_mac_addr))) {
+ if (port->aggregator && is_zero_ether_addr(port->aggregator->partner_system)) {
pr_debug("Disabling port %d(LAG %d)\n",
port->actor_port_number,
port->aggregator->aggregator_identifier);
@@ -1875,14 +1871,14 @@ static u16 aggregator_identifier;
void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution, int lacp_fast)
{
// check that the bond is not initialized yet
- if (MAC_ADDRESS_COMPARE(&(BOND_AD_INFO(bond).system.sys_mac_addr),
- bond->dev->dev_addr)) {
+ if (compare_ether_addr(BOND_AD_INFO(bond).system.sys_mac_addr,
+ bond->dev->dev_addr)) {
aggregator_identifier = 0;
BOND_AD_INFO(bond).lacp_fast = lacp_fast;
BOND_AD_INFO(bond).system.sys_priority = 0xFFFF;
- BOND_AD_INFO(bond).system.sys_mac_addr = *((struct mac_addr *)bond->dev->dev_addr);
+ memcpy(BOND_AD_INFO(bond).system.sys_mac_addr, bond->dev->dev_addr, ETH_ALEN);
// initialize how many times this module is called in one second(should be about every 100ms)
ad_ticks_per_sec = tick_resolution;
@@ -1936,7 +1932,7 @@ int bond_3ad_bind_slave(struct slave *slave)
port->sm_vars &= ~AD_PORT_LACP_ENABLED;
}
// actor system is the bond's system
- port->actor_system = BOND_AD_INFO(bond).system.sys_mac_addr;
+ memcpy(port->actor_system, BOND_AD_INFO(bond).system.sys_mac_addr, ETH_ALEN);
// tx timer(to verify that no more than MAX_TX_IN_SECOND lacpdu's are sent in one second)
port->sm_tx_timer_counter = ad_ticks_per_sec/AD_MAX_TX_IN_SECOND;
port->aggregator = NULL;
@@ -1951,7 +1947,7 @@ int bond_3ad_bind_slave(struct slave *slave)
ad_initialize_agg(aggregator);
- aggregator->aggregator_mac_address = *((struct mac_addr *)bond->dev->dev_addr);
+ memcpy(aggregator->aggregator_mac_address, bond->dev->dev_addr, ETH_ALEN);
aggregator->aggregator_identifier = (++aggregator_identifier);
aggregator->slave = slave;
aggregator->is_active = 0;
@@ -2027,7 +2023,7 @@ void bond_3ad_unbind_slave(struct slave *slave)
new_aggregator->is_individual = aggregator->is_individual;
new_aggregator->actor_admin_aggregator_key = aggregator->actor_admin_aggregator_key;
new_aggregator->actor_oper_aggregator_key = aggregator->actor_oper_aggregator_key;
- new_aggregator->partner_system = aggregator->partner_system;
+ memcpy(new_aggregator->partner_system, aggregator->partner_system, ETH_ALEN);
new_aggregator->partner_system_priority = aggregator->partner_system_priority;
new_aggregator->partner_oper_aggregator_key = aggregator->partner_oper_aggregator_key;
new_aggregator->receive_state = aggregator->receive_state;
@@ -2371,7 +2367,7 @@ int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info)
ad_info->ports = aggregator->num_of_ports;
ad_info->actor_key = aggregator->actor_oper_aggregator_key;
ad_info->partner_key = aggregator->partner_oper_aggregator_key;
- memcpy(ad_info->partner_system, aggregator->partner_system.mac_addr_value, ETH_ALEN);
+ memcpy(ad_info->partner_system, aggregator->partner_system, ETH_ALEN);
return 0;
}
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index 2c46a154..648792c 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -37,10 +37,6 @@
#define AD_LACP_SLOW 0
#define AD_LACP_FAST 1
-typedef struct mac_addr {
- u8 mac_addr_value[ETH_ALEN];
-} mac_addr_t;
-
enum {
BOND_AD_STABLE = 0,
BOND_AD_BANDWIDTH = 1,
@@ -112,7 +108,7 @@ typedef struct lacpdu {
u8 tlv_type_actor_info; // = actor information(type/length/value)
u8 actor_information_length; // = 20
__be16 actor_system_priority;
- struct mac_addr actor_system;
+ u8 actor_system[ETH_ALEN];
__be16 actor_key;
__be16 actor_port_priority;
__be16 actor_port;
@@ -121,7 +117,7 @@ typedef struct lacpdu {
u8 tlv_type_partner_info; // = partner information
u8 partner_information_length; // = 20
__be16 partner_system_priority;
- struct mac_addr partner_system;
+ u8 partner_system[ETH_ALEN];
__be16 partner_key;
__be16 partner_port_priority;
__be16 partner_port;
@@ -149,7 +145,7 @@ typedef struct bond_marker {
// = 0x02 (marker response information)
u8 marker_length; // = 0x16
u16 requester_port; // The number assigned to the port by the requester
- struct mac_addr requester_system; // The requester's system id
+ u8 requester_system[ETH_ALEN]; // The requester's system id
u32 requester_transaction_id; // The transaction id allocated by the requester,
u16 pad; // = 0
u8 tlv_type_terminator; // = 0x00
@@ -175,12 +171,12 @@ struct port;
// aggregator structure(43.4.5 in the 802.3ad standard)
typedef struct aggregator {
- struct mac_addr aggregator_mac_address;
+ u8 aggregator_mac_address[ETH_ALEN];
u16 aggregator_identifier;
bool is_individual;
u16 actor_admin_aggregator_key;
u16 actor_oper_aggregator_key;
- struct mac_addr partner_system;
+ u8 partner_system[ETH_ALEN];
u16 partner_system_priority;
u16 partner_oper_aggregator_key;
u16 receive_state; // BOOLEAN
@@ -193,7 +189,7 @@ typedef struct aggregator {
} aggregator_t;
struct port_params {
- struct mac_addr system;
+ u8 system[ETH_ALEN];
u16 system_priority;
u16 key;
u16 port_number;
@@ -205,7 +201,7 @@ struct port_params {
typedef struct port {
u16 actor_port_number;
u16 actor_port_priority;
- struct mac_addr actor_system; // This parameter is added here although it is not specified in the standard, just for simplification
+ u8 actor_system[ETH_ALEN]; // This parameter is added here although it is not specified in the standard, just for simplification
u16 actor_system_priority; // This parameter is added here although it is not specified in the standard, just for simplification
u16 actor_port_aggregator_identifier;
bool ntt;
@@ -239,7 +235,7 @@ typedef struct port {
// system structure
struct ad_system {
u16 sys_priority;
- struct mac_addr sys_mac_addr;
+ u8 sys_mac_addr[ETH_ALEN];
};
#ifdef __ia64__
--
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