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| author | Bruce Allan <bruce.w.allan@intel.com> | 2010-08-19 15:48:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-08-19 15:48:30 -0700 |
| commit | 19833b5dffe2f2e92a1b377f9aae9d5f32239512 (patch) | |
| tree | 4aa82c89c6e6035acd3f08f4a161fcd83cd7c596 | |
| parent | 8539992f6091eb8206c781421312157d0c282e6e (diff) | |
| download | kernel_samsung_smdk4412-19833b5dffe2f2e92a1b377f9aae9d5f32239512.zip kernel_samsung_smdk4412-19833b5dffe2f2e92a1b377f9aae9d5f32239512.tar.gz kernel_samsung_smdk4412-19833b5dffe2f2e92a1b377f9aae9d5f32239512.tar.bz2 | |
e1000e: disable ASPM L1 on 82573
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>
Cc: stable@kernel.org
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -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 a4a0d2b..f844e6c 100644 --- a/drivers/net/e1000e/82571.c +++ b/drivers/net/e1000e/82571.c @@ -1833,6 +1833,7 @@ 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, |