From: David Woodhouse Date: Tue, 18 Dec 2007 00:22:40 +0000 (-0500) Subject: libertas: submit RSSI command on tx timeout, to check whether module is dead X-Git-Tag: v2.6.25-rc1~1162^2~299 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=354eca9820f1efbf11978585640f1b2e92d4c5b4;p=profile%2Fivi%2Fkernel-x86-ivi.git 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 --- diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 9677b0d7..74353e1 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); }