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iwlwifi: first deactivate a queue, then wipe out its data

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Doing the opposite is wrong, the SCD wouldn't like someone
to clear its data while the queue is still active.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-10-14 16:36:36 +02:00 committed by Johannes Berg
parent 0adb52dee2
commit ac928f8dc8
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/iwlwifi/pcie/tx.c
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@ -491,6 +491,8 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
return;
}
iwl_txq_set_inactive(trans, txq_id);
rd_ptr = iwl_read_prph(trans, SCD_QUEUE_RDPTR(txq_id)) & (n_bd - 1);
wr_ptr = iwl_read_prph(trans, SCD_QUEUE_WRPTR(txq_id));
@ -500,7 +502,6 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
_iwl_write_targ_mem_dwords(trans, stts_addr,
zero_val, ARRAY_SIZE(zero_val));
iwl_txq_set_inactive(trans, txq_id);
IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id);
}