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iwlwifi: mvm: Fix tx-backoff when NIC exit thermal throttling

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When NIC is exiting from thermal throttling state (i.e. after
heating and then cooling down), tx-backoff values are assigned
to be zero, instead of being restored to the minimal value. Fixed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Eytan Lifshitz 2014-04-01 16:44:21 +03:00 • committed by Emmanuel Grumbach
parent 19a04bddab
commit 1b8ebbd3cd
1 changed files with 4 additions and 3 deletions
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7
drivers/net/wireless/iwlwifi/mvm/tt.c
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@ -468,13 +468,14 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm)
} }
if (params->support_tx_backoff) { if (params->support_tx_backoff) {
tx_backoff = 0; tx_backoff = tt->min_backoff;
for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) { for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) {
if (temperature < params->tx_backoff[i].temperature) if (temperature < params->tx_backoff[i].temperature)
break; break;
tx_backoff = params->tx_backoff[i].backoff; tx_backoff = max(tt->min_backoff,
params->tx_backoff[i].backoff);
} }
if (tx_backoff != 0) if (tx_backoff != tt->min_backoff)
throttle_enable = true; throttle_enable = true;
if (tt->tx_backoff != tx_backoff) if (tt->tx_backoff != tx_backoff)
iwl_mvm_tt_tx_backoff(mvm, tx_backoff); iwl_mvm_tt_tx_backoff(mvm, tx_backoff);