Commit 354eca98 authored Dec 17, 2007 by David Woodhouse Committed by David S. Miller Jan 28, 2008

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 <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

parent 18c52e7c

drivers/net/wireless/libertas/main.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}