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| author | Johannes Berg <johannes.berg@intel.com> | 2013-06-11 19:05:27 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-06-13 12:01:33 +0200 |
| commit | 68972c46f2975d3d61f9dc9f311f77bfc8a8b12b (patch) | |
| tree | bb6510bbb5581bb656a0a34dc10f677b12c0dd34 /drivers/net/wireless/iwlwifi/pcie/tx.c | |
| parent | 8eb3871076875f247483f4a1fe6713e6d440c53e (diff) | |
| download | blackbird-op-linux-68972c46f2975d3d61f9dc9f311f77bfc8a8b12b.tar.gz blackbird-op-linux-68972c46f2975d3d61f9dc9f311f77bfc8a8b12b.zip | |
iwlwifi: make TX seqno validation more efficient
Accessing the device in Tx path is not a good idea.
Mirror the data in DRAM.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/tx.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/tx.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index f65da1984d91..b8f3cb78382b 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -1073,6 +1073,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, /* enable aggregations for the queue */ iwl_set_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id)); + trans_pcie->txq[txq_id].ampdu = true; } else { /* * disable aggregations for the queue, this will also make the @@ -1129,6 +1130,7 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) ARRAY_SIZE(zero_val)); iwl_pcie_txq_unmap(trans, txq_id); + trans_pcie->txq[txq_id].ampdu = false; IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id); } @@ -1599,7 +1601,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, u8 wait_write_ptr = 0; __le16 fc = hdr->frame_control; u8 hdr_len = ieee80211_hdrlen(fc); - u16 __maybe_unused wifi_seq; + u16 wifi_seq; txq = &trans_pcie->txq[txq_id]; q = &txq->q; @@ -1616,13 +1618,11 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, * the BA. * Check here that the packets are in the right place on the ring. */ -#ifdef CONFIG_IWLWIFI_DEBUG wifi_seq = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); - WARN_ONCE((iwl_read_prph(trans, SCD_AGGR_SEL) & BIT(txq_id)) && - ((wifi_seq & 0xff) != q->write_ptr), + WARN_ONCE(trans_pcie->txq[txq_id].ampdu && + (wifi_seq & 0xff) != q->write_ptr, "Q: %d WiFi Seq %d tfdNum %d", txq_id, wifi_seq, q->write_ptr); -#endif /* Set up driver data for this TFD */ txq->entries[q->write_ptr].skb = skb; |
