bnx2x: add support for ndo_ll_poll

Adds ndo_ll_poll method and locking for FPs between LL and the napi.

When receiving a packet we use skb_mark_ll to record the napi it came from.
Add each napi to the napi_hash right after netif_napi_add().

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
Simple merge

diff --cc drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
Simple merge

diff --cc drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
Simple merge

diff --cc drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
Simple merge