ksmbd: smbd: handle RDMA CM time wait event

hclee · namjaejeon · commit 598c4b4780ca · 2022-06-14T10:04:11.000+09:00
After a QP has been disconnected, it stays
in a timewait state for in flight packets.
After the state has completed,
RDMA_CM_EVENT_TIMEWAIT_EXIT is reported.
Disconnect on RDMA_CM_EVENT_TIMEWAIT_EXIT
so that ksmbd can restart.

Signed-off-by: Hyunchul Lee &lt;hyc.lee@gmail.com&gt;
Signed-off-by: Namjae Jeon &lt;linkinjeon@kernel.org&gt;
diff --git a/transport_rdma.c b/transport_rdma.c
@@ -1535,6 +1535,7 @@ static int smb_direct_cm_handler(struct rdma_cm_id *cm_id,
 		wake_up_interruptible(&t->wait_status);
 		break;
 	}
+	case RDMA_CM_EVENT_TIMEWAIT_EXIT:
 	case RDMA_CM_EVENT_DEVICE_REMOVAL:
 	case RDMA_CM_EVENT_DISCONNECTED: {
 		t->status = SMB_DIRECT_CS_DISCONNECTED;

Original file line number	Diff line number	Diff line change
`@@ -1535,6 +1535,7 @@ static int smb_direct_cm_handler(struct rdma_cm_id *cm_id,`
`1535`	`1535`	`wake_up_interruptible(&t->wait_status);`
`1536`	`1536`	`break;`
`1537`	`1537`	`}`
	`1538`	`+ case RDMA_CM_EVENT_TIMEWAIT_EXIT:`
`1538`	`1539`	`case RDMA_CM_EVENT_DEVICE_REMOVAL:`
`1539`	`1540`	`case RDMA_CM_EVENT_DISCONNECTED: {`
`1540`	`1541`	`t->status = SMB_DIRECT_CS_DISCONNECTED;`