The link_sta is enabled by switchtec_ntb_link_enable() when loading

JoeyZhang-Microsemi · wesleywesley · commit 9ac6b1d91b97 · 2018-08-09T22:05:29.000+08:00
ntb_transport module. But it will be lost when the peer sends the
MSG_LINK_FORCE_DOWN.
diff --git a/ntb_hw_switchtec.c b/ntb_hw_switchtec.c
@@ -502,11 +502,16 @@ static int switchtec_ntb_reinit_peer(struct switchtec_ntb *sndev);
 
 static void link_reinit_work(struct work_struct *work)
 {
+	int link_sta;
 	struct switchtec_ntb *sndev;
 
 	sndev = container_of(work, struct switchtec_ntb, link_reinit_work);
 
+	link_sta = sndev->self_shared->link_sta;
+
 	switchtec_ntb_reinit_peer(sndev);
+
+	sndev->self_shared->link_sta = link_sta;
 }
 
 static void switchtec_ntb_check_link(struct switchtec_ntb *sndev,

Original file line number	Diff line number	Diff line change
`@@ -502,11 +502,16 @@ static int switchtec_ntb_reinit_peer(struct switchtec_ntb *sndev);`
`502`	`502`
`503`	`503`	`static void link_reinit_work(struct work_struct *work)`
`504`	`504`	`{`
	`505`	`+ int link_sta;`
`505`	`506`	`struct switchtec_ntb *sndev;`
`506`	`507`
`507`	`508`	`sndev = container_of(work, struct switchtec_ntb, link_reinit_work);`
`508`	`509`
	`510`	`+ link_sta = sndev->self_shared->link_sta;`
	`511`	`+`
`509`	`512`	`switchtec_ntb_reinit_peer(sndev);`
	`513`	`+`
	`514`	`+ sndev->self_shared->link_sta = link_sta;`
`510`	`515`	`}`
`511`	`516`
`512`	`517`	`static void switchtec_ntb_check_link(struct switchtec_ntb *sndev,`