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rt2x00: Set MIMO PS flag in tx descriptor for STAs in dynamic SMPS mode

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Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn 2010-08-06 20:46:19 +02:00 committed by John W. Linville
parent 7e613e1666
commit 84804cdca0
3 changed files with 14 additions and 1 deletions
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3
drivers/net/wireless/rt2x00/rt2800lib.c
View File

@ -437,7 +437,8 @@ void rt2800_write_txwi(__le32 *txwi, struct txentry_desc *txdesc)
rt2x00_desc_read(txwi, 0, &word);
rt2x00_set_field32(&word, TXWI_W0_FRAG,
test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
rt2x00_set_field32(&word, TXWI_W0_MIMO_PS, 0);
rt2x00_set_field32(&word, TXWI_W0_MIMO_PS,
test_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags));
rt2x00_set_field32(&word, TXWI_W0_CF_ACK, 0);
rt2x00_set_field32(&word, TXWI_W0_TS,
test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));

10
drivers/net/wireless/rt2x00/rt2x00ht.c
View File

@ -54,6 +54,16 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
*/
if (txrate->flags & IEEE80211_TX_RC_MCS) {
txdesc->mcs = txrate->idx;
/*
* MIMO PS should be set to 1 for STA's using dynamic SM PS
* when using more then one tx stream (>MCS7).
*/
if (tx_info->control.sta && txdesc->mcs > 7 &&
(tx_info->control.sta->ht_cap.cap &
(WLAN_HT_CAP_SM_PS_DYNAMIC <<
IEEE80211_HT_CAP_SM_PS_SHIFT)))
__set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags);
} else {
txdesc->mcs = rt2x00_get_rate_mcs(hwrate->mcs);
if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)

2
drivers/net/wireless/rt2x00/rt2x00queue.h
View File

@ -268,6 +268,7 @@ struct txdone_entry_desc {
* @ENTRY_TXD_HT_AMPDU: This frame is part of an AMPDU.
* @ENTRY_TXD_HT_BW_40: Use 40MHz Bandwidth.
* @ENTRY_TXD_HT_SHORT_GI: Use short GI.
* @ENTRY_TXD_HT_MIMO_PS: The receiving STA is in dynamic SM PS mode.
*/
enum txentry_desc_flags {
ENTRY_TXD_RTS_FRAME,
@ -286,6 +287,7 @@ enum txentry_desc_flags {
ENTRY_TXD_HT_AMPDU,
ENTRY_TXD_HT_BW_40,
ENTRY_TXD_HT_SHORT_GI,
ENTRY_TXD_HT_MIMO_PS,
};
/**