mac80211: allow the driver to advertise A-MSDU within A-MPDU Rx support
Drivers may be interested in receiving A-MSDU within A-MDPU.
Not all the devices may be able to do so, make it configurable.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index f28cbc0..d62d6f4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1897,6 +1897,9 @@
* @IEEE80211_HW_TDLS_WIDER_BW: The device/driver supports wider bandwidth
* than then BSS bandwidth for a TDLS link on the base channel.
*
+ * @IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU: The driver supports receiving A-MSDUs
+ * within A-MPDU.
+ *
* @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
*/
enum ieee80211_hw_flags {
@@ -1930,6 +1933,7 @@
IEEE80211_HW_SUPPORTS_CLONED_SKBS,
IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS,
IEEE80211_HW_TDLS_WIDER_BW,
+ IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU,
/* keep last, obviously */
NUM_IEEE80211_HW_FLAGS
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 6ebe861..10ad4ac 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -189,6 +189,7 @@
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
+ bool amsdu = ieee80211_hw_check(&local->hw, SUPPORTS_AMSDU_IN_AMPDU);
u16 capab;
skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
@@ -217,7 +218,8 @@
mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
- capab = (u16)(policy << 1); /* bit 1 aggregation policy */
+ capab = (u16)(amsdu << 0); /* bit 0 A-MSDU support */
+ capab |= (u16)(policy << 1); /* bit 1 aggregation policy */
capab |= (u16)(tid << 2); /* bit 5:2 TID number */
capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index ced6bf3..41726fd 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -123,6 +123,7 @@
FLAG(SUPPORTS_CLONED_SKBS),
FLAG(SINGLE_SCAN_ON_ALL_BANDS),
FLAG(TDLS_WIDER_BW),
+ FLAG(SUPPORTS_AMSDU_IN_AMPDU),
/* keep last for the build bug below */
(void *)0x1