wl12xx: support FW TX inactivity triggers

In AP mode we register for the MAX_TX_RETRY and INACTIVE_STA events.
Both are reported to the upper layers as a TX failure in the offending
stations.

In STA mode we register only for the MAX_TX_RETRY event. A TX failure is
interpreted as a loss of connection.

Support for IEEE80211_HW_REPORTS_TX_ACK_STATUS has been removed to avoid
the inherent race condition of a mac80211 TX failure counter in addition
to the FW counter.

This patch depends on "mac80211: allow low level driver to report packet
loss"

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 29 insertions, 5 deletions

diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c
index b277947400b5..a5c9c0aff83f 100644
--- a/drivers/net/wireless/wl12xx/acx.c
+++ b/drivers/net/wireless/wl12xx/acx.c
@@ -1524,22 +1524,46 @@ out:
         return ret;
 }
 
-int wl1271_acx_max_tx_retry(struct wl1271 *wl)
+int wl1271_acx_ap_max_tx_retry(struct wl1271 *wl)
 {
-        struct wl1271_acx_max_tx_retry *acx = NULL;
+        struct wl1271_acx_ap_max_tx_retry *acx = NULL;
         int ret;
 
-        wl1271_debug(DEBUG_ACX, "acx max tx retry");
+        wl1271_debug(DEBUG_ACX, "acx ap max tx retry");
 
         acx = kzalloc(sizeof(*acx), GFP_KERNEL);
         if (!acx)
                 return -ENOMEM;
 
-        acx->max_tx_retry = cpu_to_le16(wl->conf.tx.ap_max_tx_retries);
+        acx->max_tx_retry = cpu_to_le16(wl->conf.tx.max_tx_retries);
 
         ret = wl1271_cmd_configure(wl, ACX_MAX_TX_FAILURE, acx, sizeof(*acx));
         if (ret < 0) {
-                wl1271_warning("acx max tx retry failed: %d", ret);
+                wl1271_warning("acx ap max tx retry failed: %d", ret);
+                goto out;
+        }
+
+out:
+        kfree(acx);
+        return ret;
+}
+
+int wl1271_acx_sta_max_tx_retry(struct wl1271 *wl)
+{
+        struct wl1271_acx_sta_max_tx_retry *acx = NULL;
+        int ret;
+
+        wl1271_debug(DEBUG_ACX, "acx sta max tx retry");
+
+        acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+        if (!acx)
+                return -ENOMEM;
+
+        acx->max_tx_retry = wl->conf.tx.max_tx_retries;
+
+        ret = wl1271_cmd_configure(wl, ACX_CONS_TX_FAILURE, acx, sizeof(*acx));
+        if (ret < 0) {
+                wl1271_warning("acx sta max tx retry failed: %d", ret);
                 goto out;
         }