diff options
| author | Christian Lamparter <chunkeey@googlemail.com> | 2010-10-29 23:26:13 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-15 13:25:32 -0500 |
| commit | e4a668c59080f862af3ecc28b359533027cbe434 (patch) | |
| tree | d9be11d5be940d49dfbb1f03c381c58799c9f78c /drivers/net/wireless/ath/carl9170/carl9170.h | |
| parent | e27769059ccb15273a7eb69ed31b8e08f9b0eda8 (diff) | |
carl9170: fix spurious restart due to high latency
RX Stress tests of unidirectional bulk traffic with
bitrates of up to 220Mbit/s have revealed that the
fatal-event recovery logic [which was solely triggered
by an out-of-rx-buffer situation] is too aggressive.
The new method now "pings" the device and then
decides - based on the response - whenever
a restart is needed or not.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/carl9170/carl9170.h')
| -rw-r--r-- | drivers/net/wireless/ath/carl9170/carl9170.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h index b69d31972c7..d07ff7f2fd9 100644 --- a/drivers/net/wireless/ath/carl9170/carl9170.h +++ b/drivers/net/wireless/ath/carl9170/carl9170.h @@ -215,7 +215,7 @@ enum carl9170_restart_reasons { CARL9170_RR_TOO_MANY_FIRMWARE_ERRORS, CARL9170_RR_WATCHDOG, CARL9170_RR_STUCK_TX, - CARL9170_RR_SLOW_SYSTEM, + CARL9170_RR_UNRESPONSIVE_DEVICE, CARL9170_RR_COMMAND_TIMEOUT, CARL9170_RR_TOO_MANY_PHY_ERRORS, CARL9170_RR_LOST_RSP, @@ -287,6 +287,7 @@ struct ar9170 { /* reset / stuck frames/queue detection */ struct work_struct restart_work; + struct work_struct ping_work; unsigned int restart_counter; unsigned long queue_stop_timeout[__AR9170_NUM_TXQ]; unsigned long max_queue_stop_timeout[__AR9170_NUM_TXQ]; |