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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2012-12-31 09:26:10 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-01-03 15:31:15 +0100 |
| commit | f590dcec944552f9a4a61155810f3abd17d6465d (patch) | |
| tree | f405db5d099fd0b03a1f9f21008eee2118f76c91 | |
| parent | 392d4cad7907f6cb4ffc85e135a01abfddc89027 (diff) | |
| download | linux-f590dcec944552f9a4a61155810f3abd17d6465d.tar.gz linux-f590dcec944552f9a4a61155810f3abd17d6465d.tar.bz2 linux-f590dcec944552f9a4a61155810f3abd17d6465d.zip | |
iwlwifi: fix the reclaimed packet tracking upon flush queue
There's a bug in the currently released firmware version,
the sequence control in the Tx response isn't updated in
all cases. Take it from the packet as a workaround.
Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/dvm/tx.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c index da21328ca8ed..a790599fe2c2 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tx.c +++ b/drivers/net/wireless/iwlwifi/dvm/tx.c @@ -1151,13 +1151,6 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, next_reclaimed = ssn; } - if (tid != IWL_TID_NON_QOS) { - priv->tid_data[sta_id][tid].next_reclaimed = - next_reclaimed; - IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n", - next_reclaimed); - } - iwl_trans_reclaim(priv->trans, txq_id, ssn, &skbs); iwlagn_check_ratid_empty(priv, sta_id, tid); @@ -1208,11 +1201,28 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, if (!is_agg) iwlagn_non_agg_tx_status(priv, ctx, hdr->addr1); + /* + * W/A for FW bug - the seq_ctl isn't updated when the + * queues are flushed. Fetch it from the packet itself + */ + if (!is_agg && status == TX_STATUS_FAIL_FIFO_FLUSHED) { + next_reclaimed = le16_to_cpu(hdr->seq_ctrl); + next_reclaimed = + SEQ_TO_SN(next_reclaimed + 0x10); + } + is_offchannel_skb = (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN); freed++; } + if (tid != IWL_TID_NON_QOS) { + priv->tid_data[sta_id][tid].next_reclaimed = + next_reclaimed; + IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n", + next_reclaimed); + } + WARN_ON(!is_agg && freed != 1); /* |