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| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2009-07-06 12:44:20 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-07-07 03:07:47 +0200 |
| commit | 94c9e5a89349a1f1ebabe0876c059dc387b8b2a0 (patch) | |
| tree | 77ca6e744fdcdbe129e2b8ec06132c1f36f5aa27 /drivers/net/gianfar.c | |
| parent | jme: Advance driver version number (diff) | |
| download | linux-94c9e5a89349a1f1ebabe0876c059dc387b8b2a0.tar.xz linux-94c9e5a89349a1f1ebabe0876c059dc387b8b2a0.zip | |
e1000: allow ethtool coalesece to adjust interrupts per second
This patch allows on-the-fly adjustment of the interrupts per second generated
by e1000 devices 82545/82546 (hardware support of ITR register is a
requirement)
adjust using this command:
ethtool -C eth0 rx-usecs 10
where 10 is 10 microseconds per interrupt interval, so 10 = 100,000 interrupts
per second, and 125 = 8000 interrupts per second.
changes should be immediate.
1,3 are special values and indicate the automatic tuning mode to the driver,
where 1 is 4000-90000 interrupts per second and 3 is 4000-20000 interrupts
per second and is the driver default.
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/gianfar.c')
0 files changed, 0 insertions, 0 deletions