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mac80211: add HE 6 GHz Band Capability element

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Construct HE 6 GHz band capability element (IEEE 802.11ax/D6.0,
9.4.2.261) for association request and mesh beacon. The 6 GHz
capability information is passed by driver through iftypes caps.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Link: https://lore.kernel.org/r/1589399105-25472-7-git-send-email-rmanohar@codeaurora.org
[handle SMPS, adjust for previous patches, reserve SKB space properly,
 change to handle SKB directly]
Link: https://lore.kernel.org/r/20200528213443.643aa8101111.I3f9747c1147480f65445f13eda5c4a5ed4e86757@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Rajkumar Manoharan 2020-05-28 21:34:32 +02:00 • committed by Johannes Berg
parent 2239521772
commit 24a2042cb2
6 changed files with 65 additions and 1 deletions
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46
net/mac80211/util.c
View file

@ -2839,6 +2839,52 @@ end:
return pos;
}
void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
struct ieee80211_supported_band *sband;
const struct ieee80211_sband_iftype_data *iftd;
enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
u8 *pos;
u16 cap;
sband = ieee80211_get_sband(sdata);
if (!sband)
return;
iftd = ieee80211_get_sband_iftype_data(sband, iftype);
if (WARN_ON(!iftd))
return;
cap = le16_to_cpu(iftd->he_6ghz_capa.capa);
cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS;
switch (sdata->smps_mode) {
case IEEE80211_SMPS_AUTOMATIC:
case IEEE80211_SMPS_NUM_MODES:
WARN_ON(1);
/* fall through */
case IEEE80211_SMPS_OFF:
cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED,
IEEE80211_HE_6GHZ_CAP_SM_PS);
break;
case IEEE80211_SMPS_STATIC:
cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC,
IEEE80211_HE_6GHZ_CAP_SM_PS);
break;
case IEEE80211_SMPS_DYNAMIC:
cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC,
IEEE80211_HE_6GHZ_CAP_SM_PS);
break;
}
pos = skb_put(skb, 2 + 1 + sizeof(cap));
*pos++ = WLAN_EID_EXTENSION;
*pos++ = 1 + sizeof(cap);
*pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA;
put_unaligned_le16(cap, pos);
}
u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
const struct cfg80211_chan_def *chandef,
u16 prot_mode, bool rifs_mode)