diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2010-04-27 01:37:20 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-27 12:53:27 -0700 |
| commit | f8d1dcaf88bddc7f282722ec1fdddbcb06a72f18 (patch) | |
| tree | 3bd62a02d6a024cf022a4a129607ca08716e26d0 /drivers/net/ixgbe/ixgbe_dcb_82599.c | |
| parent | ec857fd40da41d7c50d9a97e07e364c93b8b8e05 (diff) | |
ixgbe: enable extremely low latency
82598/82599 can support EITR == 0, which allows for the
absolutely lowest latency setting in the hardware. This disables
writeback batching and anything else that relies upon a delayed
interrupt. This patch enables the feature of "override" when a
user sets rx-usecs to zero, the driver will respect that setting
over using RSC, and automatically disable RSC. If rx-usecs is
used to set the EITR value to 0, then the driver should disable
LRO (aka RSC) internally until EITR is set to non-zero again.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb_82599.c')
0 files changed, 0 insertions, 0 deletions