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[05/12] nl80211: support advertising S1G capabilities

Message ID 20220711010816.45927-6-kieran.frewen@morsemicro.com (mailing list archive)
State Changes Requested
Delegated to: Johannes Berg
Headers show
Series Additional support for 802.11ah (S1G) | expand

Commit Message

Kieran Frewen July 11, 2022, 1:08 a.m. UTC 
Include S1G capabilities in netlink band info messages.

Signed-off-by: Kieran Frewen <kieran.frewen@morsemicro.com>
Signed-off-by: Bassem Dawood <bassem@morsemicro.com>
---
 include/uapi/linux/nl80211.h |  7 +++++++
 net/wireless/nl80211.c       | 10 ++++++++++
 2 files changed, 17 insertions(+)
diff mbox series

Patch

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index bd6e2cae1dd3..71074332ccc5 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3933,6 +3933,10 @@  enum nl80211_band_iftype_attr {
  * @NL80211_BAND_ATTR_EDMG_BW_CONFIG: Channel BW Configuration subfield encodes
  *	the allowed channel bandwidth configurations.
  *	Defined by IEEE P802.11ay/D4.0 section 9.4.2.251, Table 13.
+ * @NL80211_BAND_ATTR_S1G_MCS_NSS_SET: S1G capabilities, supported S1G-MCS and NSS
+ *	set subfield, as in the S1G information IE, 5 bytes
+ * @NL80211_BAND_ATTR_S1G_CAPA: S1G capabilities information subfield as in the
+ *	S1G information IE, 10 bytes
  * @NL80211_BAND_ATTR_MAX: highest band attribute currently defined
  * @__NL80211_BAND_ATTR_AFTER_LAST: internal use
  */
@@ -3953,6 +3957,9 @@  enum nl80211_band_attr {
 	NL80211_BAND_ATTR_EDMG_CHANNELS,
 	NL80211_BAND_ATTR_EDMG_BW_CONFIG,
 
+	NL80211_BAND_ATTR_S1G_MCS_NSS_SET,
+	NL80211_BAND_ATTR_S1G_CAPA,
+
 	/* keep last */
 	__NL80211_BAND_ATTR_AFTER_LAST,
 	NL80211_BAND_ATTR_MAX = __NL80211_BAND_ATTR_AFTER_LAST - 1
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ab47e4130141..077dc2938551 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1942,6 +1942,16 @@  static int nl80211_send_band_rateinfo(struct sk_buff *msg,
 
 	nla_nest_end(msg, nl_rates);
 
+	/* S1G capabilities */
+	if (sband->band == NL80211_BAND_S1GHZ && sband->s1g_cap.s1g &&
+	    (nla_put(msg, NL80211_BAND_ATTR_S1G_CAPA,
+		     sizeof(sband->s1g_cap.cap),
+		     sband->s1g_cap.cap) ||
+	     nla_put(msg, NL80211_BAND_ATTR_S1G_MCS_NSS_SET,
+		     sizeof(sband->s1g_cap.nss_mcs),
+		     sband->s1g_cap.nss_mcs)))
+		return -ENOBUFS;
+
 	return 0;
 }