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Date: Tue, 24 Dec 2013 22:35:37 +0800
From: Ding Tianhong <dthxman@...il.com>
To: Joe Perches <joe@...ches.com>,
Ding Tianhong <dingtianhong@...wei.com>
CC: "David S. Miller" <davem@...emloft.net>,
Netdev <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
e1000-devel@...ts.sourceforge.net
Subject: Re: [PATCH v2 01/20] net: slight optimization of addr compare for
some modules
δΊ 2013/12/24 22:22, Joe Perches ει:
> On Tue, 2013-12-24 at 19:27 +0800, Ding Tianhong wrote:
>> Use possibly more efficient ether_addr_equal_unaligned
>> and ether_addr_equal to instead of memcmp.
>
> A negative of adding so many different drivers in a single
> patch is that you miss sending patches to the named maintainers.
>
> Most of these below have separate individual maintainers.
> (a suggested patch below this too)
>
you mean that I should send below by separate patch? It seemed that I
misunderstood, I use the ./script/getmainter and found the only maintainer
is David, and others are support, so maybe I was wrong, but it really a big
patchset, could I send them by seperate patchset? I think it could be more
clearly.
>> drivers/net/bonding/bond_3ad.c | 2 +-
>> drivers/net/ethernet/3com/3c509.c | 3 +--
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c | 10 ++++------
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 2 +-
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 2 +-
>> drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c | 2 +-
>> drivers/net/ethernet/chelsio/cxgb3/l2t.c | 2 +-
>> drivers/net/ethernet/cisco/enic/enic_pp.c | 2 +-
>> drivers/net/ethernet/emulex/benet/be_main.c | 2 +-
>> drivers/net/ethernet/intel/igbvf/netdev.c | 2 +-
>> drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 3 +--
>> drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 4 ++--
>> drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 2 +-
>> drivers/net/ethernet/micrel/ksz884x.c | 9 ++++-----
>> drivers/net/ethernet/neterion/vxge/vxge-main.c | 2 +-
>> drivers/net/ethernet/packetengines/yellowfin.c | 8 ++------
>> drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c | 2 +-
>> drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 4 ++--
>> drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 4 ++--
>> drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 4 ++--
>> drivers/net/ethernet/renesas/sh_eth.c | 2 +-
>> drivers/net/ethernet/seeq/sgiseeq.c | 2 +-
>> drivers/net/ethernet/sun/sunvnet.c | 2 +-
>> drivers/net/ethernet/ti/cpsw_ale.c | 2 +-
>> drivers/net/fddi/skfp/fplustm.c | 3 ++-
>> drivers/net/plip/plip.c | 2 +-
>> net/caif/cfrfml.c | 2 +-
>> 27 files changed, 39 insertions(+), 47 deletions(-)
>
> Also for bonding, my preference would be to rename
> the macro and use ether_addr_equal as it seems that
> all references are u16 aligned.
>
Agree, I make it in the early patchset, as same as yours,
[PATCH net-next 1/6] bonding: use ether_addr_equal_unaligned for bond addr compare
in my opinion, I think it would be better in the bonding patchset,
because I am making a patchset for bonding.
Regards
Ding
> I also removed some superfluous parentheses.
> ---
> drivers/net/bonding/bond_3ad.c | 23 ++++++++++++-----------
> 1 file changed, 12 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
> index 187b1b7..ae56983 100644
> --- a/drivers/net/bonding/bond_3ad.c
> +++ b/drivers/net/bonding/bond_3ad.c
> @@ -91,7 +91,8 @@
> //endalloun
>
> // compare MAC addresses
> -#define MAC_ADDRESS_COMPARE(A, B) memcmp(A, B, ETH_ALEN)
> +#define MAC_ADDRESS_EQUAL(A, B) \
> + ether_addr_equal((const u8 *)A, (const u8 *)B)
>
> static struct mac_addr null_mac_addr = { { 0, 0, 0, 0, 0, 0 } };
> static u16 ad_ticks_per_sec;
> @@ -419,7 +420,7 @@ 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)) &&
> + MAC_ADDRESS_EQUAL(&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))) ||
> @@ -509,7 +510,7 @@ 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) ||
> + !MAC_ADDRESS_EQUAL(&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)) {
> @@ -540,7 +541,7 @@ 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) ||
> + !MAC_ADDRESS_EQUAL(&admin->system, &oper->system) ||
> admin->system_priority != oper->system_priority ||
> admin->key != oper->key ||
> (admin->port_state & AD_STATE_AGGREGATION)
> @@ -570,7 +571,7 @@ 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)) ||
> + !MAC_ADDRESS_EQUAL(&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)) ||
> @@ -1072,7 +1073,7 @@ 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 (MAC_ADDRESS_EQUAL(&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",
> @@ -1278,11 +1279,11 @@ 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)) &&
> + MAC_ADDRESS_EQUAL(&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_EQUAL(&port->partner_oper.system, &null_mac_addr) && // partner answers
> !aggregator->is_individual) // but is not individual OR
> )
> ) {
> @@ -1696,7 +1697,7 @@ 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 && !MAC_ADDRESS_EQUAL(&port->aggregator->partner_system, &null_mac_addr)) {
> pr_debug("Disabling port %d(LAG %d)\n",
> port->actor_port_number,
> port->aggregator->aggregator_identifier);
> @@ -1818,8 +1819,8 @@ static u16 aggregator_identifier;
> void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution)
> {
> // 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 (!MAC_ADDRESS_EQUAL(&BOND_AD_INFO(bond).system.sys_mac_addr,
> + bond->dev->dev_addr)) {
>
> aggregator_identifier = 0;
>
>
>
> --
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