diff options
| 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/ixgbevf.h | |
| parent | d91e3a7d624590220e31ccb80a6fb5247cbfa64a (diff) | |
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/ixgbevf.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h index ec3147279621..68ec7daa04fd 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h @@ -326,8 +326,7 @@ static inline bool ixgbevf_qv_disable(struct ixgbevf_q_vector *q_vector) #define IXGBE_MIN_RSC_ITR 24 #define IXGBE_100K_ITR 40 #define IXGBE_20K_ITR 200 -#define IXGBE_10K_ITR 400 -#define IXGBE_8K_ITR 500 +#define IXGBE_12K_ITR 336 /* Helper macros to switch between ints/sec and what the register uses. * And yes, it's the same math going both ways. The lowest value |