This allows an option to configure a single HE MCS beacon tx rate.
Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxx>
---
include/uapi/linux/nl80211.h | 9 +++++++--
net/wireless/nl80211.c | 25 +++++++++++++++++++++++--
2 files changed, 30 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 47700a2b9af9..0c9f0b8a1e4e 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1750,8 +1750,9 @@ enum nl80211_commands {
* specify just a single bitrate, which is to be used for the beacon.
* The driver must also specify support for this with the extended
* features NL80211_EXT_FEATURE_BEACON_RATE_LEGACY,
- * NL80211_EXT_FEATURE_BEACON_RATE_HT and
- * NL80211_EXT_FEATURE_BEACON_RATE_VHT.
+ * NL80211_EXT_FEATURE_BEACON_RATE_HT,
+ * NL80211_EXT_FEATURE_BEACON_RATE_VHT and
+ * NL80211_EXT_FEATURE_BEACON_RATE_HE.
*
* @NL80211_ATTR_FRAME_MATCH: A binary attribute which typically must contain
* at least one byte, currently used with @NL80211_CMD_REGISTER_FRAME.
@@ -5896,6 +5897,9 @@ enum nl80211_feature_flags {
* @NL80211_EXT_FEATURE_UNSOL_BCAST_PROBE_RESP: Driver/device supports
* unsolicited broadcast probe response transmission
*
+ * @NL80211_EXT_FEATURE_BEACON_RATE_HE: Driver supports beacon rate
+ * configuration (AP/mesh) with HE rates.
+ *
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@@ -5956,6 +5960,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SAE_OFFLOAD_AP,
NL80211_EXT_FEATURE_FILS_DISCOVERY,
NL80211_EXT_FEATURE_UNSOL_BCAST_PROBE_RESP,
+ NL80211_EXT_FEATURE_BEACON_RATE_HE,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b61699a04dc4..2e24d6eef791 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4680,6 +4680,7 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
mask->control[band].ht_mcs))
return -EINVAL;
}
+
if (tb[NL80211_TXRATE_VHT]) {
if (!vht_set_mcs_mask(
sband,
@@ -4687,6 +4688,7 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
mask->control[band].vht_mcs))
return -EINVAL;
}
+
if (tb[NL80211_TXRATE_GI]) {
mask->control[band].gi =
nla_get_u8(tb[NL80211_TXRATE_GI]);
@@ -4698,6 +4700,7 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
nla_data(tb[NL80211_TXRATE_HE]),
mask->control[band].he_mcs))
return -EINVAL;
+
if (tb[NL80211_TXRATE_HE_GI])
mask->control[band].he_gi =
nla_get_u8(tb[NL80211_TXRATE_HE_GI]);
@@ -4739,7 +4742,7 @@ static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
enum nl80211_band band,
struct cfg80211_bitrate_mask *beacon_rate)
{
- u32 count_ht, count_vht, i;
+ u32 count_ht, count_vht, count_he, i;
u32 rate = beacon_rate->control[band].legacy;
/* Allow only one rate */
@@ -4772,7 +4775,21 @@ static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
return -EINVAL;
}
- if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
+ count_he = 0;
+ for (i = 0; i < NL80211_HE_NSS_MAX; i++) {
+ if (hweight16(beacon_rate->control[band].he_mcs[i]) > 1) {
+ return -EINVAL;
+ } else if (beacon_rate->control[band].he_mcs[i]) {
+ count_he++;
+ if (count_he > 1)
+ return -EINVAL;
+ }
+ if (count_he && rate)
+ return -EINVAL;
+ }
+
+ if ((count_ht && count_vht && count_he) ||
+ (!rate && !count_ht && !count_vht && !count_he))
return -EINVAL;
if (rate &&
@@ -4787,6 +4804,10 @@ static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
!wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_BEACON_RATE_VHT))
return -EINVAL;
+ if (count_he &&
+ !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_BEACON_RATE_HE))
+ return -EINVAL;
return 0;
}
--
2.7.4
