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| author | Jesse Brandeburg <[email protected]> | 2009-12-03 11:33:54 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2009-12-03 23:43:22 +0000 |
| commit | 9b471446cb376e2d1a4ceb4695059acfc3437f32 (patch) | |
| tree | 9578694e15b99da7a797924d1c087e506d8126fc /net/ipv4/tcp_ipv4.c | |
| parent | ixgbe: performance tweaks (diff) | |
| download | kernel-9b471446cb376e2d1a4ceb4695059acfc3437f32.tar.gz kernel-9b471446cb376e2d1a4ceb4695059acfc3437f32.zip | |
ixgbe: use EIAM to automask MSI-X
when disabling interrupts, driver was writing with IO, this is no
necessary because on ixgbe parts the hardware can "oneshot"
disable and clear the interrupt. So on 82598/82599 use of EIAM
should avoid one posted write per interrupt when in MSI-X mode.
This should improve performance and seems to in my limited
testing, reduce CPU utilization VERY slightly.
Signed-off-by: Jesse Brandeburg <[email protected]>
Acked-by: Peter P Waskiewicz Jr <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
0 files changed, 0 insertions, 0 deletions