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authorMichael S. Tsirkin <mst@redhat.com>2013-05-02 03:50:34 +0300
committerMichael S. Tsirkin <mst@redhat.com>2013-05-02 13:40:15 +0300
commit5012a3a384ad917b5c72a918607bd0cc64452ff8 (patch)
treed014dbbbf78f061098a757b5a67c3212ed1259c1 /include/uapi
parenteb62b74e90790dbc1aca7ea2a7161e23de7c9065 (diff)
downloadvexpress-lsk-5012a3a384ad917b5c72a918607bd0cc64452ff8.tar.gz
tcm_vhost: header split up
move uapi parts to vhost.h move .c private parts to .c itself Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Asias He <asias@redhat.com> Acked-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/vhost.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index e847f1e3075..bb6a5b4cb3c 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -127,4 +127,32 @@ struct vhost_memory {
/* vhost-net should add virtio_net_hdr for RX, and strip for TX packets. */
#define VHOST_NET_F_VIRTIO_NET_HDR 27
+/* VHOST_SCSI specific definitions */
+
+/*
+ * Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
+ *
+ * ABI Rev 0: July 2012 version starting point for v3.6-rc merge candidate +
+ * RFC-v2 vhost-scsi userspace. Add GET_ABI_VERSION ioctl usage
+ * ABI Rev 1: January 2013. Ignore vhost_tpgt filed in struct vhost_scsi_target.
+ * All the targets under vhost_wwpn can be seen and used by guset.
+ */
+
+#define VHOST_SCSI_ABI_VERSION 1
+
+struct vhost_scsi_target {
+ int abi_version;
+ char vhost_wwpn[224]; /* TRANSPORT_IQN_LEN */
+ unsigned short vhost_tpgt;
+ unsigned short reserved;
+};
+
+#define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
+#define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target)
+/* Changing this breaks userspace. */
+#define VHOST_SCSI_GET_ABI_VERSION _IOW(VHOST_VIRTIO, 0x42, int)
+/* Set and get the events missed flag */
+#define VHOST_SCSI_SET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x43, __u32)
+#define VHOST_SCSI_GET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x44, __u32)
+
#endif