cxgb3: reset the adapter on fatal error

when a fatal error occurs, bring ports down, reset the chip,
and bring ports back up.

Factorize code used for both EEH and fatal error recovery.
Fix timer usage when bringing up/resetting sge queue sets.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index e9da285..02dd69b 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -240,6 +240,7 @@
 	unsigned int check_task_cnt;
 	struct delayed_work adap_check_task;
 	struct work_struct ext_intr_handler_task;
+	struct work_struct fatal_error_handler_task;
 
 	struct dentry *debugfs_root;