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iwlwifi: fix station mimo power save values

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This patch fixes the wrong use MIMO power save values. Our TX was
configured with our MIMO power save values instead of peer's MIMO power
save values, this may affect connectivity. The peer STA/AP may not sense
our traffic at all as it doesn't have all RX chains opened.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ron Rindjunsky 2008-09-03 11:18:46 +08:00 committed by John W. Linville
parent 545597036c
commit 4834c73f05
3 changed files with 2 additions and 4 deletions
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3
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
View file

@ -1153,7 +1153,8 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
!sta->ht_info.ht_supported)
return -1;
if (priv->current_ht_config.tx_mimo_ps_mode == IWL_MIMO_PS_STATIC)
if (((sta->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS) >> 2)
== IWL_MIMO_PS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */

2
drivers/net/wireless/iwlwifi/iwl-agn.c
View file

@ -586,8 +586,6 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
iwl_conf->supported_chan_width = 0;
}
iwl_conf->tx_mimo_ps_mode =
(u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
iwl_conf->control_channel = ht_bss_conf->primary_channel;

1
drivers/net/wireless/iwlwifi/iwl-dev.h
View file

@ -412,7 +412,6 @@ struct iwl_ht_info {
/* self configuration data */
u8 is_ht;
u8 supported_chan_width;
u16 tx_mimo_ps_mode;
u8 is_green_field;
u8 sgf; /* HT_SHORT_GI_* short guard interval */
u8 max_amsdu_size;