From: Ivo van Doorn Date: Fri, 6 Aug 2010 18:46:19 +0000 (+0200) Subject: rt2x00: Set MIMO PS flag in tx descriptor for STAs in dynamic SMPS mode X-Git-Tag: v2.6.37-rc1~147^2~679^2~66 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=84804cdca043e2315bf5eae60807ac105929073f;p=platform%2Fupstream%2Fkernel-adaptation-pc.git rt2x00: Set MIMO PS flag in tx descriptor for STAs in dynamic SMPS mode Signed-off-by: Helmut Schaa Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index b66e0fd..833b157 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -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)); diff --git a/drivers/net/wireless/rt2x00/rt2x00ht.c b/drivers/net/wireless/rt2x00/rt2x00ht.c index c004cd3..ad3c7ff 100644 --- a/drivers/net/wireless/rt2x00/rt2x00ht.c +++ b/drivers/net/wireless/rt2x00/rt2x00ht.c @@ -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) diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 38b47919..2d3bf84 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -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, }; /**