bna: Add RX State
Change Details:
- BNA state machine for Rx in start_wait state moves it to stop_wait on
receipt of RX_E_STOP. In Rx stop_wait state, on receipt of
RX_E_STARTED event does enet stop
RX_E_STOPPED event does rx_cleanup_cbfn
rx_cleanup_cbfn in this case is called without post_cbfn. post_cbfn
happens only after RX_E_STARTED event is received in start_wait. Without
doing post_cbfn, NAPI remains disabled and in cleanup we try to disable
again causing endless wait. ifconfig process and other workers can thus
get stuck.
- Introducing start_stop_wait state for Rx. This state handles the case of
if post_cbfn is not done simply do stop without the cleanup.
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed