cnic: Fix bnx2x ring shutdown.

Need to send a HALT command to the firmware to fully shutdown the bnx2x
rings.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed