diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/tx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index 28a371814387..9fbd37d23e85 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c @@ -995,7 +995,11 @@ static int iwl_pcie_tx_alloc(struct iwl_trans *trans) txq_id++) { bool cmd_queue = (txq_id == trans_pcie->cmd_queue); - slots_num = cmd_queue ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + if (cmd_queue) + slots_num = max_t(u32, TFD_CMD_SLOTS, + trans->cfg->min_txq_size); + else + slots_num = TFD_TX_CMD_SLOTS; trans_pcie->txq[txq_id] = &trans_pcie->txq_memory[txq_id]; ret = iwl_pcie_txq_alloc(trans, trans_pcie->txq[txq_id], slots_num, cmd_queue); @@ -1044,7 +1048,11 @@ int iwl_pcie_tx_init(struct iwl_trans *trans) txq_id++) { bool cmd_queue = (txq_id == trans_pcie->cmd_queue); - slots_num = cmd_queue ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + if (cmd_queue) + slots_num = max_t(u32, TFD_CMD_SLOTS, + trans->cfg->min_txq_size); + else + slots_num = TFD_TX_CMD_SLOTS; ret = iwl_pcie_txq_init(trans, trans_pcie->txq[txq_id], slots_num, cmd_queue); if (ret) { @@ -1174,6 +1182,15 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, skb_queue_splice_init(&txq->overflow_q, &overflow_skbs); /* + * We are going to transmit from the overflow queue. + * Remember this state so that wait_for_txq_empty will know we + * are adding more packets to the TFD queue. It cannot rely on + * the state of &txq->overflow_q, as we just emptied it, but + * haven't TXed the content yet. + */ + txq->overflow_tx = true; + + /* * This is tricky: we are in reclaim path which is non * re-entrant, so noone will try to take the access the * txq data from that path. We stopped tx, so we can't @@ -1201,6 +1218,7 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, iwl_wake_queue(trans, txq); spin_lock_bh(&txq->lock); + txq->overflow_tx = false; } if (txq->read_ptr == txq->write_ptr) { |