diff options
| author | Scott Feldman <scofeldm@cisco.com> | 2009-12-23 13:27:43 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-23 21:03:40 -0800 |
| commit | 9959a18556c73ebf2936b8df183ea7b41f38d933 (patch) | |
| tree | dd3f715d82e9d655e16baf0aed86c518ad9eb8ef /drivers | |
| parent | 2d6ddced5c99cf79c06b9b6ec1366ab63b970ea9 (diff) | |
enic: minimize pkt filter updates to firmware
In set_multicast(), only push pkt filter changes down to firmware if
pkt filter actually changes.
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/enic/enic.h | 1 | ||||
| -rw-r--r-- | drivers/net/enic/enic_main.c | 8 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h index 8dd0105a8d9c..b090d65ad0c8 100644 --- a/drivers/net/enic/enic.h +++ b/drivers/net/enic/enic.h @@ -89,6 +89,7 @@ struct enic { spinlock_t devcmd_lock; u8 mac_addr[ETH_ALEN]; u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN]; + unsigned int flags; unsigned int mc_count; int csum_rx_enabled; u32 port_mtu; diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c index 452a6b747e3e..019b1480cc0c 100644 --- a/drivers/net/enic/enic_main.c +++ b/drivers/net/enic/enic_main.c @@ -771,6 +771,7 @@ static void enic_set_multicast_list(struct net_device *netdev) int promisc = (netdev->flags & IFF_PROMISC) ? 1 : 0; int allmulti = (netdev->flags & IFF_ALLMULTI) || (netdev->mc_count > ENIC_MULTICAST_PERFECT_FILTERS); + unsigned int flags = netdev->flags | (allmulti ? IFF_ALLMULTI : 0); u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN]; unsigned int mc_count = netdev->mc_count; unsigned int i, j; @@ -780,8 +781,11 @@ static void enic_set_multicast_list(struct net_device *netdev) spin_lock(&enic->devcmd_lock); - vnic_dev_packet_filter(enic->vdev, directed, - multicast, broadcast, promisc, allmulti); + if (enic->flags != flags) { + enic->flags = flags; + vnic_dev_packet_filter(enic->vdev, directed, + multicast, broadcast, promisc, allmulti); + } /* Is there an easier way? Trying to minimize to * calls to add/del multicast addrs. We keep the |