| commit | 0f5cd45960173ba5b36727decbb4a241cbd35ef9 | |
| author | Mohammed Shafi Shajakhan <mshajakhan@atheros.com> | |
| Tue, 15 Feb 2011 15:59:32 +0000 (15 21:29 +0530) | ||
| committer | John W. Linville <linville@tuxdriver.com> | |
| Tue, 15 Feb 2011 16:16:00 +0000 (15 11:16 -0500) | ||
| tree | 6e4528d6eee03aec59b3b630aae272f34e7f27b7 | treesnapshot (tar.gz zip) |
| parent | a7b545f7fe753ca3dc1b51ca57f90cd59d974e44 | commitdiff |
ath9k: Fix ath9k prevents CPU to enter C3 states
The DMA latency issue is observed only in Intel pinetrail platforms
but in the driver we had a default PM-QOS value of 55. This caused
unnecessary power consumption and battery drain in other platforms.
Remove the pm-qos thing in the driver code and address the throughput
issue in Intel pinetrail platfroms in user space using any one of
the scripts in below links:
http://www.kernel.org/pub/linux/kernel/people/mcgrof/scripts/cpudmalatency.c
http://johannes.sipsolutions.net/files/netlatency.c.txt
More details can be found in the following bugzilla link:
https://bugzilla.kernel.org/show_bug.cgi?id=27532
This reverts the following commits:
98c316e348bedffa730e6f1e4baeb8a3c3e0f28b
4dc3530df7c0428b41c00399a7ee8c929406d181
10598c124ecabbbfd7522f74de19b8f7d52a1bee
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The DMA latency issue is observed only in Intel pinetrail platforms
but in the driver we had a default PM-QOS value of 55. This caused
unnecessary power consumption and battery drain in other platforms.
Remove the pm-qos thing in the driver code and address the throughput
issue in Intel pinetrail platfroms in user space using any one of
the scripts in below links:
http://www.kernel.org/pub/linux/kernel/people/mcgrof/scripts/cpudmalatency.c
http://johannes.sipsolutions.net/files/netlatency.c.txt
More details can be found in the following bugzilla link:
https://bugzilla.kernel.org/show_bug.cgi?id=27532
This reverts the following commits:
98c316e348bedffa730e6f1e4baeb8a3c3e0f28b
4dc3530df7c0428b41c00399a7ee8c929406d181
10598c124ecabbbfd7522f74de19b8f7d52a1bee
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| drivers/net/wireless/ath/ath9k/ath9k.h | diffblobblamehistory | |
| drivers/net/wireless/ath/ath9k/init.c | diffblobblamehistory | |
| drivers/net/wireless/ath/ath9k/main.c | diffblobblamehistory |