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mac80211: enable spatial multiplexing powersave

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Enable spatial multiplexing in mac80211 by telling the
driver what to do and, where necessary, sending action
frames to the AP to update the requested SMPS mode.

Also includes a trivial implementation for hwsim that
just logs the requested mode.

For now, the userspace interface is in debugfs only,
and let you toggle the requested mode at any time.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-12-01 13:37:02 +01:00
committed by John W. Linville
parent 18974b5b0b
commit 0f78231bff
12 changed files with 517 additions and 11 deletions
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22
drivers/net/wireless/mac80211_hwsim.c
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@@ -618,12 +618,26 @@ static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
{
struct mac80211_hwsim_data *data = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
static const char *chantypes[4] = {
[NL80211_CHAN_NO_HT] = "noht",
[NL80211_CHAN_HT20] = "ht20",
[NL80211_CHAN_HT40MINUS] = "ht40-",
[NL80211_CHAN_HT40PLUS] = "ht40+",
};
static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
[IEEE80211_SMPS_AUTOMATIC] = "auto",
[IEEE80211_SMPS_OFF] = "off",
[IEEE80211_SMPS_STATIC] = "static",
[IEEE80211_SMPS_DYNAMIC] = "dynamic",
};
printk(KERN_DEBUG "%s:%s (freq=%d idle=%d ps=%d)\n",
printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
wiphy_name(hw->wiphy), __func__,
conf->channel->center_freq,
chantypes[conf->channel_type],
!!(conf->flags & IEEE80211_CONF_IDLE),
!!(conf->flags & IEEE80211_CONF_PS));
!!(conf->flags & IEEE80211_CONF_PS),
smps_modes[conf->smps_mode]);
data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
@@ -1082,7 +1096,9 @@ static int __init init_mac80211_hwsim(void)
BIT(NL80211_IFTYPE_MESH_POINT);
hw->flags = IEEE80211_HW_MFP_CAPABLE |
IEEE80211_HW_SIGNAL_DBM;
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_SUPPORTS_STATIC_SMPS |
IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
/* ask mac80211 to reserve space for magic */
hw->vif_data_size = sizeof(struct hwsim_vif_priv);