@@ -1768,6 +1768,7 @@ struct cfg80211_bitrate_mask {
u32 legacy;
u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN];
u16 vht_mcs[NL80211_VHT_NSS_MAX];
+ enum nl80211_txrate_gi gi;
} control[IEEE80211_NUM_BANDS];
};
/**
@@ -3114,6 +3114,7 @@ enum nl80211_key_attributes {
* in an array of MCS numbers.
* @NL80211_TXRATE_VHT: VHT rates allowed for TX rate selection,
* see &struct nl80211_txrate_vht
+ * @NL80211_TXRATE_GI: configure GI, see &enum nl80211_txrate_gi
* @__NL80211_TXRATE_AFTER_LAST: internal
* @NL80211_TXRATE_MAX: highest TX rate attribute
*/
@@ -3122,6 +3123,7 @@ enum nl80211_tx_rate_attributes {
NL80211_TXRATE_LEGACY,
NL80211_TXRATE_HT,
NL80211_TXRATE_VHT,
+ NL80211_TXRATE_GI,
/* keep last */
__NL80211_TXRATE_AFTER_LAST,
@@ -3139,6 +3141,12 @@ struct nl80211_txrate_vht {
__u16 mcs[NL80211_VHT_NSS_MAX];
};
+enum nl80211_txrate_gi {
+ NL80211_TXRATE_DEFAULT_GI,
+ NL80211_TXRATE_FORCE_SGI,
+ NL80211_TXRATE_FORCE_LGI,
+};
+
/**
* enum nl80211_band - Frequency band
* @NL80211_BAND_2GHZ: 2.4 GHz ISM band
@@ -7394,6 +7394,7 @@ static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
[NL80211_TXRATE_HT] = { .type = NLA_BINARY,
.len = NL80211_MAX_SUPP_HT_RATES },
[NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
+ [NL80211_TXRATE_GI] = { .type = NLA_U8 },
};
static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
@@ -7474,6 +7475,9 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
mask.control[band].vht_mcs))
return -EINVAL;
}
+ if (tb[NL80211_TXRATE_GI])
+ mask.control[band].gi =
+ nla_get_u8(tb[NL80211_TXRATE_GI]);
if (mask.control[band].legacy == 0) {
/* don't allow empty legacy rates if HT or VHT
Allow to force SGI, LGI. Mainly for test purpose. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> --- *V2 - fix line over 80 characters include/net/cfg80211.h | 1 + include/uapi/linux/nl80211.h | 8 ++++++++ net/wireless/nl80211.c | 4 ++++ 3 files changed, 13 insertions(+)