X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fbsg.h;h=ecb4730d0868504d1ed9d0cb58a3522c38073695;hb=b0d44c0dbbd52effb731b1c0af9afd56215c48de;hp=cf0303a6061195de840a22d97ff24a7b41d4d49e;hpb=ccc751841567816532874afcaeb449dbf6ca7d3a;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index cf0303a60611..ecb4730d0868 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -1,12 +1,22 @@
 #ifndef BSG_H
 #define BSG_H
 
+#include <linux/types.h>
+
 #define BSG_PROTOCOL_SCSI		0
 
 #define BSG_SUB_PROTOCOL_SCSI_CMD	0
 #define BSG_SUB_PROTOCOL_SCSI_TMF	1
 #define BSG_SUB_PROTOCOL_SCSI_TRANSPORT	2
 
+/*
+ * For flags member below
+ * sg.h sg_io_hdr also has bits defined for it's flags member. However
+ * none of these bits are implemented/used by bsg. The bits below are
+ * allocated to not conflict with sg.h ones anyway.
+ */
+#define BSG_FLAG_Q_AT_TAIL 0x10 /* default, == 0 at this bit, is Q_AT_HEAD */
+
 struct sg_io_v4 {
 	__s32 guard;		/* [i] 'Q' to differentiate from v3 */
 	__u32 protocol;		/* [i] 0 -> SCSI , .... */