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| author |   Alexander Duyck <aduyck@mirantis.com> | 2015-09-29 13:11:15 -0700 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2015-11-23 11:08:50 -0800 |
| commit | 8a9ca1104da0de6dd8551237e7d0e50eeeea4e80 (patch) | |
| tree | 44c4a2945b848fe054ea74260764de50093b332d /drivers/net/ethernet/intel/ixgbevf/ethtool.c | |
| parent | ixgbe: Add KR mode support for CS4227 chip (diff) | |
| download | linux-dev-8a9ca1104da0de6dd8551237e7d0e50eeeea4e80.tar.xz linux-dev-8a9ca1104da0de6dd8551237e7d0e50eeeea4e80.zip | |
ixgbevf: Limit lowest interrupt rate for adaptive interrupt moderation to 12K
This patch is the ixgbevf version of commit 8ac34f10a5ea4 "ixgbe: Limit
lowest interrupt rate for adaptive interrupt moderation to 12K"
The same logic applies here as well as the same results since a netperf
test will starve for memory in the time from one Tx interrupt to the next.
As a result the ixgbevf driver underperformed when compared to vhost_net.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbevf/ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ethtool.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c index d3e5f5b37999..c48aef613b0a 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c +++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c @@ -774,7 +774,7 @@ static int ixgbevf_set_coalesce(struct net_device *netdev, adapter->tx_itr_setting = ec->tx_coalesce_usecs; if (adapter->tx_itr_setting == 1) - tx_itr_param = IXGBE_10K_ITR; + tx_itr_param = IXGBE_12K_ITR; else tx_itr_param = adapter->tx_itr_setting; |