From 354eca9820f1efbf11978585640f1b2e92d4c5b4 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 17 Dec 2007 19:22:40 -0500 Subject: [PATCH] libertas: submit RSSI command on tx timeout, to check whether module is dead We don't necessarily want to reset the device on a TX timeout. But more often than not, the real cause is that the firmware has crapped itself, not just that the network is busy. So submit any harmless command, and if _that_ times out, then the error handling code will reset the module, as appropriate. Signed-off-by: David Woodhouse Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/main.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 9677b0d77160..74353e1d72ff 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -476,6 +476,13 @@ static void lbs_tx_timeout(struct net_device *dev) to kick it somehow? */ lbs_host_to_card_done(priv); + /* More often than not, this actually happens because the + firmware has crapped itself -- rather than just a very + busy medium. So send a harmless command, and if/when + _that_ times out, we'll kick it in the head. */ + lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, + 0, 0, NULL); + lbs_deb_leave(LBS_DEB_TX); } -- 2.20.1