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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-01-11 17:19:39 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-02-01 15:57:22 +0200 |
| commit | ce71c2f7976881f39fcf14f28bd7633612acd0ef (patch) | |
| tree | 7ed352f82d3c191adc1120bedd0b0f9424a749a2 /drivers/net/wireless/iwlwifi/pcie/tx.c | |
| parent | b9dccdb33c4dc86922d025d02e91715ad9510732 (diff) | |
| download | linux-ce71c2f7976881f39fcf14f28bd7633612acd0ef.tar.bz2 | |
iwlwifi: mvm: enable watchdog on Tx queues for mvm
This watchdog allows to monitor the transmit queues. When a
queue doesn't progress for a too long time, a timer fires
and then, debug data can be collected.
This watchdog has never been enabled on dvm controlled
devices, so don't enable it there.
In order to have it running on mvm controlled devices, we
need to fix a small issue in the transport layer: mvm
controlled devices use the shadow registers optimization.
In this case, the watchdog wasn't running at all, even if
enabled by the module parameter. Fix that on the way.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/tx.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/tx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index 59aefa43ea85..bb9dd3ecbcf5 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -1849,7 +1849,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, /* start timer if queue currently empty */ if (q->read_ptr == q->write_ptr) { - if (txq->need_update && trans_pcie->wd_timeout) + if (trans_pcie->wd_timeout) mod_timer(&txq->stuck_timer, jiffies + trans_pcie->wd_timeout); IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", q->id); |