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cfg80211: add support to configure HE MCS for beacon rate

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This allows an option to configure a single HE MCS beacon tx rate.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Link: https://lore.kernel.org/r/1602879327-29488-2-git-send-email-rmanohar@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Rajkumar Manoharan 2020-10-16 13:15:27 -07:00 committed by Johannes Berg
parent 857b34c4fb
commit c4a30446a9
2 changed files with 30 additions and 4 deletions
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9
include/uapi/linux/nl80211.h
View File

@ -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.
@ -5903,6 +5904,9 @@ 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.
*/
@ -5963,6 +5967,7 @@ 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,

25
net/wireless/nl80211.c
View File

@ -4683,6 +4683,7 @@ 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,
@ -4690,6 +4691,7 @@ 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]);
@ -4701,6 +4703,7 @@ 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]);
@ -4742,7 +4745,7 @@ 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 */
@ -4775,7 +4778,21 @@ 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 &&
@ -4790,6 +4807,10 @@ 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;
}