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authorYingying Tang <yintang@qti.qualcomm.com>2017-10-24 16:51:10 +0800
committerJohannes Berg <johannes.berg@intel.com>2017-12-11 12:16:05 +0100
commite2fb1b839208ad776c0ffbb55f17e6968389ce02 (patch)
treef5d17aea033426a9a094000ea3ca68771efa80ca
parentd559e303b17826a6e4879fc6f12d929562c4061c (diff)
mac80211: enable TDLS peer buffer STA feature
Allow drivers to set the buffer station extended capability for TDLS links, with a new hardware flag indicating this. Signed-off-by: Yingying Tang <yintang@qti.qualcomm.com> [change commit log/documentation wording] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--include/net/mac80211.h4
-rw-r--r--net/mac80211/debugfs.c1
-rw-r--r--net/mac80211/tdls.c5
3 files changed, 9 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index eec143cca1c0..2ee4af25256d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2056,6 +2056,9 @@ struct ieee80211_txq {
* The stack will not do fragmentation.
* The callback for @set_frag_threshold should be set as well.
*
+ * @IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA: Hardware supports buffer STA on
+ * TDLS links.
+ *
* @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
*/
enum ieee80211_hw_flags {
@@ -2098,6 +2101,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_TX_FRAG_LIST,
IEEE80211_HW_REPORTS_LOW_ACK,
IEEE80211_HW_SUPPORTS_TX_FRAG,
+ IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA,
/* keep last, obviously */
NUM_IEEE80211_HW_FLAGS
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 5fae001f286c..1f466d12a6bc 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -211,6 +211,7 @@ static const char *hw_flag_names[] = {
FLAG(TX_FRAG_LIST),
FLAG(REPORTS_LOW_ACK),
FLAG(SUPPORTS_TX_FRAG),
+ FLAG(SUPPORTS_TDLS_BUFFER_STA),
#undef FLAG
};
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 96d4fb998e33..5cd5e6e5834e 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -47,6 +47,8 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
bool wider_band = ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
!ifmgd->tdls_wider_bw_prohibited;
+ bool buffer_sta = ieee80211_hw_check(&local->hw,
+ SUPPORTS_TDLS_BUFFER_STA);
struct ieee80211_supported_band *sband = ieee80211_get_sband(sdata);
bool vht = sband && sband->vht_cap.vht_supported;
u8 *pos = skb_put(skb, 10);
@@ -56,7 +58,8 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
*pos++ = 0x0;
*pos++ = 0x0;
*pos++ = 0x0;
- *pos++ = chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0;
+ *pos++ = (chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0) |
+ (buffer_sta ? WLAN_EXT_CAPA4_TDLS_BUFFER_STA : 0);
*pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
*pos++ = 0;
*pos++ = 0;