nl80211: Extract driver offchannel simultaneous capability

Make the driver offchannel simultaneous capability available to
wpa_supplicant.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 6668a5e..830ff80 100644 (file)
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1214,6 +1214,8 @@ struct wpa_driver_capa {
 #define WPA_DRIVER_FLAGS_VHT_IBSS              0x0000002000000000ULL
 /** Driver supports automatic band selection */
 #define WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY   0x0000004000000000ULL
+/** Driver supports simultaneous off-channel operations */
+#define WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS       0x0000008000000000ULL
        u64 flags;
 
 #define WPA_DRIVER_SMPS_MODE_STATIC                    0x00000001

diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index 4adc95b..7b0e81d 100644 (file)
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -843,6 +843,10 @@ static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
 
        if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
                drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
+
+       if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS,
+                         &info))
+               drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
 }
 
 
@@ -928,6 +932,16 @@ int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
        qca_nl80211_check_dfs_capa(drv);
        qca_nl80211_get_features(drv);
 
+       /*
+        * To enable offchannel simultaneous support in wpa_supplicant, the
+        * underlying driver needs to support the same along with offchannel TX.
+        * Offchannel TX support is needed since remain_on_channel and
+        * action_tx use some common data structures and hence cannot be
+        * scheduled simultaneously.
+        */
+       if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
+               drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
+
        return 0;
 }