The attached patch incorporates Jeff's comments related to creating
separate functions for restarting the NIC(without using close and
open entry points) and few other comments. Complete list of changes
are as follows:

1. Two new functions s2io_card_down() and s2io_card_up() are defined
and are called during reset procedure instead of close and open
routines.
2. tasklet_status field is now made as unsigned long.
3. On getting serious error, queue is stopped before resetting the card.
4. Removed the check for "queue stopped" in xmit routine.
Signed-off-by: Raghavendra Koushik <raghavendra.koushik@s2io.com>
Signed-off-by: Ravinandan Arakali <ravinandan.arakali@s2io.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>