From 21d34442cec8f4e59273e7ac0cb91445eba77564 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 9 Apr 2011 22:56:51 +0000 Subject: ath5k: add some more performance improvements git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26566 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../patches/464-ath5k_optimize_tx_desc_setup.patch | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 package/mac80211/patches/464-ath5k_optimize_tx_desc_setup.patch (limited to 'package/mac80211/patches/464-ath5k_optimize_tx_desc_setup.patch') diff --git a/package/mac80211/patches/464-ath5k_optimize_tx_desc_setup.patch b/package/mac80211/patches/464-ath5k_optimize_tx_desc_setup.patch new file mode 100644 index 0000000000..77dfae8c78 --- /dev/null +++ b/package/mac80211/patches/464-ath5k_optimize_tx_desc_setup.patch @@ -0,0 +1,89 @@ +--- a/drivers/net/wireless/ath/ath5k/desc.c ++++ b/drivers/net/wireless/ath/ath5k/desc.c +@@ -184,6 +184,7 @@ static int ath5k_hw_setup_4word_tx_desc( + { + struct ath5k_hw_4w_tx_ctl *tx_ctl; + unsigned int frame_len; ++ u32 txctl0 = 0, txctl1 = 0, txctl2 = 0, txctl3 = 0; + + tx_ctl = &desc->ud.ds_tx5212.tx_ctl; + +@@ -209,7 +210,8 @@ static int ath5k_hw_setup_4word_tx_desc( + tx_power = AR5K_TUNE_MAX_TXPOWER; + + /* Clear descriptor */ +- memset(&desc->ud.ds_tx5212, 0, sizeof(struct ath5k_hw_5212_tx_desc)); ++ memset(&desc->ud.ds_tx5212.tx_stat, 0, ++ sizeof(desc->ud.ds_tx5212.tx_stat)); + + /* Setup control descriptor */ + +@@ -221,7 +223,7 @@ static int ath5k_hw_setup_4word_tx_desc( + if (frame_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN) + return -EINVAL; + +- tx_ctl->tx_control_0 = frame_len & AR5K_4W_TX_DESC_CTL0_FRAME_LEN; ++ txctl0 = frame_len & AR5K_4W_TX_DESC_CTL0_FRAME_LEN; + + /* Verify and set buffer length */ + +@@ -232,21 +234,17 @@ static int ath5k_hw_setup_4word_tx_desc( + if (pkt_len & ~AR5K_4W_TX_DESC_CTL1_BUF_LEN) + return -EINVAL; + +- tx_ctl->tx_control_1 = pkt_len & AR5K_4W_TX_DESC_CTL1_BUF_LEN; ++ txctl1 = pkt_len & AR5K_4W_TX_DESC_CTL1_BUF_LEN; + +- tx_ctl->tx_control_0 |= +- AR5K_REG_SM(tx_power, AR5K_4W_TX_DESC_CTL0_XMIT_POWER) | +- AR5K_REG_SM(antenna_mode, AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT); +- tx_ctl->tx_control_1 |= AR5K_REG_SM(type, +- AR5K_4W_TX_DESC_CTL1_FRAME_TYPE); +- tx_ctl->tx_control_2 = AR5K_REG_SM(tx_tries0, +- AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0); +- tx_ctl->tx_control_3 = tx_rate0 & AR5K_4W_TX_DESC_CTL3_XMIT_RATE0; ++ txctl0 |= AR5K_REG_SM(tx_power, AR5K_4W_TX_DESC_CTL0_XMIT_POWER) | ++ AR5K_REG_SM(antenna_mode, AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT); ++ txctl1 |= AR5K_REG_SM(type, AR5K_4W_TX_DESC_CTL1_FRAME_TYPE); ++ txctl2 = AR5K_REG_SM(tx_tries0, AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0); ++ txctl3 = tx_rate0 & AR5K_4W_TX_DESC_CTL3_XMIT_RATE0; + + #define _TX_FLAGS(_c, _flag) \ + if (flags & AR5K_TXDESC_##_flag) { \ +- tx_ctl->tx_control_##_c |= \ +- AR5K_4W_TX_DESC_CTL##_c##_##_flag; \ ++ txctl##_c |= AR5K_4W_TX_DESC_CTL##_c##_##_flag; \ + } + + _TX_FLAGS(0, CLRDMASK); +@@ -262,8 +260,8 @@ static int ath5k_hw_setup_4word_tx_desc( + * WEP crap + */ + if (key_index != AR5K_TXKEYIX_INVALID) { +- tx_ctl->tx_control_0 |= AR5K_4W_TX_DESC_CTL0_ENCRYPT_KEY_VALID; +- tx_ctl->tx_control_1 |= AR5K_REG_SM(key_index, ++ txctl0 |= AR5K_4W_TX_DESC_CTL0_ENCRYPT_KEY_VALID; ++ txctl1 |= AR5K_REG_SM(key_index, + AR5K_4W_TX_DESC_CTL1_ENCRYPT_KEY_IDX); + } + +@@ -274,12 +272,16 @@ static int ath5k_hw_setup_4word_tx_desc( + if ((flags & AR5K_TXDESC_RTSENA) && + (flags & AR5K_TXDESC_CTSENA)) + return -EINVAL; +- tx_ctl->tx_control_2 |= rtscts_duration & +- AR5K_4W_TX_DESC_CTL2_RTS_DURATION; +- tx_ctl->tx_control_3 |= AR5K_REG_SM(rtscts_rate, ++ txctl2 |= rtscts_duration & AR5K_4W_TX_DESC_CTL2_RTS_DURATION; ++ txctl3 |= AR5K_REG_SM(rtscts_rate, + AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE); + } + ++ tx_ctl->tx_control_0 = txctl0; ++ tx_ctl->tx_control_1 = txctl1; ++ tx_ctl->tx_control_2 = txctl2; ++ tx_ctl->tx_control_3 = txctl3; ++ + return 0; + } + -- cgit v1.2.3