diff options
| author | Bruce Allan <bruce.w.allan@intel.com> | 2010-08-19 15:48:30 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-26 16:43:54 -0700 |
| commit | 55bfc1769f8f2ad94c244dac429f1dd05cc34792 (patch) | |
| tree | eec198e34121e160366b232edf0b90ff02bde17d | |
| parent | 11ea3cff91994f03aaa2b52341a45f936dc67b53 (diff) | |
e1000e: disable ASPM L1 on 82573
commit 19833b5dffe2f2e92a1b377f9aae9d5f32239512 upstream.
On the e1000-devel mailing list, Nils Faerber reported latency issues with
the 82573 LOM on a ThinkPad X60. It was found to be caused by ASPM L1;
disabling it resolves the latency. The issue is present in kernels back
to 2.6.34 and possibly 2.6.33.
Reported-by: Nils Faerber <nils.faerber@kernelconcepts.de>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/net/e1000e/82571.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c index 90155552ea0..e5b408f80be 100644 --- a/drivers/net/e1000e/82571.c +++ b/drivers/net/e1000e/82571.c @@ -1826,6 +1826,7 @@ struct e1000_info e1000_82573_info = { | FLAG_HAS_SMART_POWER_DOWN | FLAG_HAS_AMT | FLAG_HAS_SWSM_ON_LOAD, + .flags2 = FLAG2_DISABLE_ASPM_L1, .pba = 20, .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN, .get_variants = e1000_get_variants_82571, |