From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from nbd.name ([46.4.11.11]:44272 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755100Ab1DJQcY (ORCPT ); Sun, 10 Apr 2011 12:32:24 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, ath5k-devel@lists.ath5k.org Subject: [PATCH 5/7] ath5k: remove ts_retry from ath5k_tx_status Date: Sun, 10 Apr 2011 18:32:17 +0200 Message-Id: <1302453139-11437-5-git-send-email-nbd@openwrt.org> In-Reply-To: <1302453139-11437-4-git-send-email-nbd@openwrt.org> References: <1302453139-11437-1-git-send-email-nbd@openwrt.org> <1302453139-11437-2-git-send-email-nbd@openwrt.org> <1302453139-11437-3-git-send-email-nbd@openwrt.org> <1302453139-11437-4-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Reusing the configured retry counts from the skb cb is more efficient than reloading the data from uncached memory. Replace ts_longretry (unused) with ts_final_retry which contains the retry count for the final rate only Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath5k/ath5k.h | 3 +- drivers/net/wireless/ath/ath5k/base.c | 11 ++++++++- drivers/net/wireless/ath/ath5k/desc.c | 34 ++----------------------------- 3 files changed, 13 insertions(+), 35 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h index aa588a0..fcaf4ed 100644 --- a/drivers/net/wireless/ath/ath5k/ath5k.h +++ b/drivers/net/wireless/ath/ath5k/ath5k.h @@ -452,11 +452,10 @@ struct ath5k_tx_status { u16 ts_seqnum; u16 ts_tstamp; u8 ts_status; - u8 ts_retry[4]; u8 ts_final_idx; + u8 ts_final_retry; s8 ts_rssi; u8 ts_shortretry; - u8 ts_longretry; u8 ts_virtcol; u8 ts_antenna; }; diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 753662f..1a561b8 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -1573,20 +1573,27 @@ ath5k_tx_frame_completed(struct ath5k_softc *sc, struct sk_buff *skb, struct ath5k_txq *txq, struct ath5k_tx_status *ts) { struct ieee80211_tx_info *info; + u8 tries[3]; int i; sc->stats.tx_all_count++; sc->stats.tx_bytes_count += skb->len; info = IEEE80211_SKB_CB(skb); + tries[0] = info->status.rates[0].count; + tries[1] = info->status.rates[1].count; + tries[2] = info->status.rates[2].count; + ieee80211_tx_info_clear_status(info); - for (i = 0; i <= ts->ts_final_idx; i++) { + + for (i = 0; i < ts->ts_final_idx; i++) { struct ieee80211_tx_rate *r = &info->status.rates[i]; - r->count = ts->ts_retry[i]; + r->count = tries[i]; } + info->status.rates[ts->ts_final_idx].count = ts->ts_final_retry; info->status.rates[ts->ts_final_idx + 1].idx = -1; if (unlikely(ts->ts_status)) { diff --git a/drivers/net/wireless/ath/ath5k/desc.c b/drivers/net/wireless/ath/ath5k/desc.c index e366d30..0391813 100644 --- a/drivers/net/wireless/ath/ath5k/desc.c +++ b/drivers/net/wireless/ath/ath5k/desc.c @@ -366,7 +366,7 @@ static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *ah, AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP); ts->ts_shortretry = AR5K_REG_MS(tx_status->tx_status_0, AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT); - ts->ts_longretry = AR5K_REG_MS(tx_status->tx_status_0, + ts->ts_final_retry = AR5K_REG_MS(tx_status->tx_status_0, AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT); /*TODO: ts->ts_virtcol + test*/ ts->ts_seqnum = AR5K_REG_MS(tx_status->tx_status_1, @@ -375,7 +375,6 @@ static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *ah, AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH); ts->ts_antenna = 1; ts->ts_status = 0; - ts->ts_retry[0] = ts->ts_longretry; ts->ts_final_idx = 0; if (!(tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK)) { @@ -401,7 +400,7 @@ static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah, { struct ath5k_hw_4w_tx_ctl *tx_ctl; struct ath5k_hw_tx_status *tx_status; - u32 txstat0, txstat1, txctl2; + u32 txstat0, txstat1; tx_ctl = &desc->ud.ds_tx5212.tx_ctl; tx_status = &desc->ud.ds_tx5212.tx_stat; @@ -413,7 +412,6 @@ static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah, return -EINPROGRESS; txstat0 = ACCESS_ONCE(tx_status->tx_status_0); - txctl2 = ACCESS_ONCE(tx_ctl->tx_control_2); /* * Get descriptor status @@ -422,7 +420,7 @@ static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah, AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP); ts->ts_shortretry = AR5K_REG_MS(txstat0, AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT); - ts->ts_longretry = AR5K_REG_MS(txstat0, + ts->ts_final_retry = AR5K_REG_MS(txstat0, AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT); ts->ts_seqnum = AR5K_REG_MS(txstat1, AR5K_DESC_TX_STATUS1_SEQ_NUM); @@ -435,32 +433,6 @@ static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah, ts->ts_final_idx = AR5K_REG_MS(txstat1, AR5K_DESC_TX_STATUS1_FINAL_TS_IX_5212); - /* The longretry counter has the number of un-acked retries - * for the final rate. To get the total number of retries - * we have to add the retry counters for the other rates - * as well - */ - ts->ts_retry[ts->ts_final_idx] = ts->ts_longretry; - switch (ts->ts_final_idx) { - case 3: - ts->ts_retry[2] = AR5K_REG_MS(txctl2, - AR5K_4W_TX_DESC_CTL2_XMIT_TRIES2); - ts->ts_longretry += ts->ts_retry[2]; - /* fall through */ - case 2: - ts->ts_retry[1] = AR5K_REG_MS(txctl2, - AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1); - ts->ts_longretry += ts->ts_retry[1]; - /* fall through */ - case 1: - ts->ts_retry[0] = AR5K_REG_MS(txctl2, - AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1); - ts->ts_longretry += ts->ts_retry[0]; - /* fall through */ - case 0: - break; - } - /* TX error */ if (!(txstat0 & AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK)) { if (txstat0 & AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES) -- 1.7.3.2