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cfg80211: add and expose HE 6 GHz band capabilities

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These capabilities cover what would otherwise be transported
in HT/VHT capabilities, but only a subset thereof that is
actually needed on 6 GHz with HE already present. Expose the
capabilities to userspace, drivers are expected to set them
as using the 6 GHz band (currently) requires HE capability.

Link: https://lore.kernel.org/r/20200528213443.244cd5cb9db8.Icd8c773277a88c837e7e3af1d4d1013cc3b66543@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2020-05-28 21:34:31 +02:00
parent a6cf28e05f
commit 2239521772
3 changed files with 14 additions and 1 deletions
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9
net/wireless/nl80211.c
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@@ -1562,6 +1562,7 @@ static int nl80211_send_coalesce(struct sk_buff *msg,
static int
nl80211_send_iftype_data(struct sk_buff *msg,
const struct ieee80211_supported_band *sband,
const struct ieee80211_sband_iftype_data *iftdata)
{
const struct ieee80211_sta_he_cap *he_cap = &iftdata->he_cap;
@@ -1585,6 +1586,12 @@ nl80211_send_iftype_data(struct sk_buff *msg,
return -ENOBUFS;
}
if (sband->band == NL80211_BAND_6GHZ &&
nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_6GHZ_CAPA,
sizeof(iftdata->he_6ghz_capa),
&iftdata->he_6ghz_capa))
return -ENOBUFS;
return 0;
}
@@ -1633,7 +1640,7 @@ static int nl80211_send_band_rateinfo(struct sk_buff *msg,
if (!iftdata)
return -ENOBUFS;
err = nl80211_send_iftype_data(msg,
err = nl80211_send_iftype_data(msg, sband,
&sband->iftype_data[i]);
if (err)
return err;