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iwlwifi: set AMPDU status variables correctly 

The TX status code is currently abusing the ampdu_ack_map field (a bitmap) to
count the number of successfully received frames.  The comments in mac80211.h
show there are actually three different, relevant variables, of which we are
currently using two, both incorrectly. Fix this by making

- ampdu_ack_len -> the number of ACKed frames (i.e. successes)
- ampdu_ack_map -> the bitmap
- ampdu_len -> the total number of frames sent (i.e., attempts)

to match the header file (and verified with ath9k's usage) and updating Intel's
RS code to match.

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Daniel Halperin 2010-04-18 09:27:58 -07:00 committed by Reinette Chatre
parent 17f36fc6ef
commit e3a3cd8789
2 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
View File

@ -867,14 +867,14 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type,
&rs_index);
rs_collect_tx_data(curr_tbl, rs_index,
info->status.ampdu_ack_len,
info->status.ampdu_ack_map);
info->status.ampdu_len,
info->status.ampdu_ack_len);
/* Update success/fail counts if not searching for new mode */
if (lq_sta->stay_in_tbl) {
lq_sta->total_success += info->status.ampdu_ack_map;
lq_sta->total_failed += (info->status.ampdu_ack_len -
info->status.ampdu_ack_map);
lq_sta->total_success += info->status.ampdu_ack_len;
lq_sta->total_failed += (info->status.ampdu_len -
info->status.ampdu_ack_len);
}
} else {
/*

5
drivers/net/wireless/iwlwifi/iwl-agn-tx.c
View File

@ -1233,8 +1233,9 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv,
memset(&info->status, 0, sizeof(info->status));
info->flags |= IEEE80211_TX_STAT_ACK;
info->flags |= IEEE80211_TX_STAT_AMPDU;
info->status.ampdu_ack_map = successes;
info->status.ampdu_ack_len = agg->frame_count;
info->status.ampdu_ack_len = successes;
info->status.ampdu_ack_map = bitmap;
info->status.ampdu_len = agg->frame_count;
iwlagn_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
IWL_DEBUG_TX_REPLY(priv, "Bitmap %llx\n", (unsigned long long)bitmap);