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ath5k: add some more performance improvements

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26566 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2011-04-09 22:56:51 +00:00
parent 42a36fdda9
commit fbadef915d
5 changed files with 444 additions and 0 deletions
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89
package/mac80211/patches/464-ath5k_optimize_tx_desc_setup.patch Normal file
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@@ -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;
}