wil6210: fix BACK status processing

When FW notifies about BACK status change, it provides ring ID.
Process BA status for requested connection only. As for now, FW
don't report Rx BACK status, it reports Tx one instead.
As per current algorithm used in the firmware, imply Rx BACK
state is in sync with Tx one

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index dfbc239b149d1f1478b8f9eb80641810fc01ac2b..635aa322608c9da0c199f743ede3d1d53e3347bc 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -563,27 +563,42 @@ static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
                              int len)
 {
        struct wmi_vring_ba_status_event *evt = d;
-       uint cid, i;
+       struct wil_sta_info *sta;
+       uint i, cid;
+
+       /* TODO: use Rx BA status, not Tx one */
 
        wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d\n",
-                   evt->ringid, evt->status == WMI_BA_AGREED ? "OK" : "N/A",
+                   evt->ringid,
+                   evt->status == WMI_BA_AGREED ? "OK" : "N/A",
                    evt->agg_wsize, __le16_to_cpu(evt->ba_timeout));
-       for (cid = 0; cid < WIL6210_MAX_CID; cid++) {
-               struct wil_sta_info *sta = &wil->sta[cid];
-
-               if (sta->status == wil_sta_unused)
-                       continue;
-               wil_dbg_wmi(wil, "Init BACK for CID %d %pM\n", cid, sta->addr);
-               for (i = 0; i < WIL_STA_TID_NUM; i++) {
-                       struct wil_tid_ampdu_rx *r = sta->tid_rx[i];
-                       sta->tid_rx[i] = NULL;
-                       wil_tid_ampdu_rx_free(wil, r);
-                       if ((evt->status == WMI_BA_AGREED) && evt->agg_wsize)
-                               sta->tid_rx[i] = wil_tid_ampdu_rx_alloc(wil,
-                                                       evt->agg_wsize, 0);
-               }
+
+       if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
+               wil_err(wil, "invalid ring id %d\n", evt->ringid);
+               return;
        }
 
+       cid = wil->vring2cid_tid[evt->ringid][0];
+       if (cid >= WIL6210_MAX_CID) {
+               wil_err(wil, "invalid CID %d for vring %d\n", cid, evt->ringid);
+               return;
+       }
+
+       sta = &wil->sta[cid];
+       if (sta->status == wil_sta_unused) {
+               wil_err(wil, "CID %d unused\n", cid);
+               return;
+       }
+
+       wil_dbg_wmi(wil, "BACK for CID %d %pM\n", cid, sta->addr);
+       for (i = 0; i < WIL_STA_TID_NUM; i++) {
+               struct wil_tid_ampdu_rx *r = sta->tid_rx[i];
+               sta->tid_rx[i] = NULL;
+               wil_tid_ampdu_rx_free(wil, r);
+               if ((evt->status == WMI_BA_AGREED) && evt->agg_wsize)
+                       sta->tid_rx[i] = wil_tid_ampdu_rx_alloc(wil,
+                                               evt->agg_wsize, 0);
+       }
 }
 
 static const struct {