netxen: fix tx timeout recovery

o In case of tx timeout, firmare may be healthy, but some pci-func may
  see no response from it. Force firmware reset, if some pci-func
  explicitly requests so.

Signed-off-by: Amit Kumar Salecha <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Amit Kumar Salecha

drivers/net/netxen/netxen_nic_init.c

@@ -778,6 +778,9 @@ netxen_need_fw_reset(struct netxen_adapter *adapter)
 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 		return 1;
 
+	if (adapter->need_fw_reset)
+		return 1;
+
 	/* last attempt had failed */
 	if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
 		return 1;

drivers/net/netxen/netxen_nic_main.c

@@ -2284,8 +2284,10 @@ netxen_check_health(struct netxen_adapter *adapter)
 	}
 
 	state = NXRD32(adapter, NX_CRB_DEV_STATE);
-	if (state == NX_DEV_NEED_RESET)
+	if (state == NX_DEV_NEED_RESET) {
+		adapter->need_fw_reset = 1;
 		goto detach;
+	}
 
 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 		return 0;