diff --git a/contrib/debug/flags.c b/contrib/debug/flags.c
index e0d191dd5..7ff6372cb 100644
--- a/contrib/debug/flags.c
+++ b/contrib/debug/flags.c
@@ -201,8 +201,6 @@ void show_si_et(unsigned int f)
 
 void show_si_flags(unsigned int f)
 {
-	f &= 0xFFFF;
-
 	printf("si->flags   = ");
 	if (!f) {
 		printf("SI_FL_NONE\n");
@@ -222,8 +220,14 @@ void show_si_flags(unsigned int f)
 	SHOW_FLAG(f, SI_FL_WANT_PUT);
 	SHOW_FLAG(f, SI_FL_WANT_GET);
 
+	SHOW_FLAG(f, SI_FL_RXBLK_CHAN);
+	SHOW_FLAG(f, SI_FL_RXBLK_BUFF);
+	SHOW_FLAG(f, SI_FL_RXBLK_ROOM);
+	SHOW_FLAG(f, SI_FL_RXBLK_SHUT);
+	SHOW_FLAG(f, SI_FL_RX_WAIT_EP);
+
 	if (f) {
-		printf("EXTRA(0x%04x)", f);
+		printf("EXTRA(0x%08x)", f);
 	}
 	putchar('\n');
 }
diff --git a/include/types/stream_interface.h b/include/types/stream_interface.h
index f63c0fd6d..1f1716fe4 100644
--- a/include/types/stream_interface.h
+++ b/include/types/stream_interface.h
@@ -64,7 +64,7 @@ enum {
 	SI_FL_NONE       = 0x00000000,  /* nothing */
 	SI_FL_EXP        = 0x00000001,  /* timeout has expired */
 	SI_FL_ERR        = 0x00000002,  /* a non-recoverable error has occurred */
-	SI_FL_RXBLK_ROOM = 0x00000004,  /* stream-int waits for more buffer room to store incoming data */
+	/* unused:         0x00000004 */
 	SI_FL_WAIT_DATA  = 0x00000008,  /* stream-int waits for more outgoing data to send */
 	SI_FL_ISBACK     = 0x00000010,  /* 0 for front-side SI, 1 for back-side */
 	SI_FL_DONT_WAKE  = 0x00000020,  /* resync in progress, don't wake up */
@@ -75,6 +75,13 @@ enum {
 	SI_FL_WANT_PUT   = 0x00002000,  /* a stream-int would like to put some data into the buffer */
 	SI_FL_WANT_GET   = 0x00004000,  /* a stream-int would like to get some data from the buffer */
 	SI_FL_CLEAN_ABRT = 0x00008000,  /* SI_FL_ERR is used to report aborts, and not SHUTR */
+
+	SI_FL_RXBLK_CHAN = 0x00010000,  /* the channel doesn't want the stream-int to introduce data */
+	SI_FL_RXBLK_BUFF = 0x00020000,  /* stream-int waits for a buffer allocation to complete */
+	SI_FL_RXBLK_ROOM = 0x00040000,  /* stream-int waits for more buffer room to store incoming data */
+	SI_FL_RXBLK_SHUT = 0x00080000,  /* input is now closed, nothing new will ever come */
+	SI_FL_RXBLK_ANY  = 0x000F0000,  /* any of the RXBLK flags above */
+	SI_FL_RX_WAIT_EP = 0x00100000,  /* stream-int waits for more data from the end point */
 };
 
 /* A stream interface has 3 parts :