1 files changed, 164 insertions, 0 deletions
diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h
new file mode 100644
index 000000000000..af448649a975
--- /dev/null
+++ b/include/uapi/linux/virtio_scsi.h
@@ -0,0 +1,164 @@
+/*
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef _LINUX_VIRTIO_SCSI_H
+#define _LINUX_VIRTIO_SCSI_H
+#include <linux/virtio_types.h>
+#define VIRTIO_SCSI_CDB_SIZE   32
+#define VIRTIO_SCSI_SENSE_SIZE 96
+/* SCSI command request, followed by data-out */
+struct virtio_scsi_cmd_req {
+        u8 lun[8];              /* Logical Unit Number */
+        __virtio64 tag;         /* Command identifier */
+        u8 task_attr;           /* Task attribute */
+        u8 prio;                /* SAM command priority field */
+        u8 crn;
+        u8 cdb[VIRTIO_SCSI_CDB_SIZE];
+} __packed;
+/* SCSI command request, followed by protection information */
+struct virtio_scsi_cmd_req_pi {
+        u8 lun[8];              /* Logical Unit Number */
+        __virtio64 tag;         /* Command identifier */
+        u8 task_attr;           /* Task attribute */
+        u8 prio;                /* SAM command priority field */
+        u8 crn;
+        __virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
+        __virtio32 pi_bytesin;          /* DataIN PI Number of bytes */
+        u8 cdb[VIRTIO_SCSI_CDB_SIZE];
+} __packed;
+/* Response, followed by sense data and data-in */
+struct virtio_scsi_cmd_resp {
+        __virtio32 sense_len;           /* Sense data length */
+        __virtio32 resid;               /* Residual bytes in data buffer */
+        __virtio16 status_qualifier;    /* Status qualifier */
+        u8 status;              /* Command completion status */
+        u8 response;            /* Response values */
+        u8 sense[VIRTIO_SCSI_SENSE_SIZE];
+} __packed;
+/* Task Management Request */
+struct virtio_scsi_ctrl_tmf_req {
+        __virtio32 type;
+        __virtio32 subtype;
+        u8 lun[8];
+        __virtio64 tag;
+} __packed;
+struct virtio_scsi_ctrl_tmf_resp {
+        u8 response;
+} __packed;
+/* Asynchronous notification query/subscription */
+struct virtio_scsi_ctrl_an_req {
+        __virtio32 type;
+        u8 lun[8];
+        __virtio32 event_requested;
+} __packed;
+struct virtio_scsi_ctrl_an_resp {
+        __virtio32 event_actual;
+        u8 response;
+} __packed;
+struct virtio_scsi_event {
+        __virtio32 event;
+        u8 lun[8];
+        __virtio32 reason;
+} __packed;
+struct virtio_scsi_config {
+        u32 num_queues;
+        u32 seg_max;
+        u32 max_sectors;
+        u32 cmd_per_lun;
+        u32 event_info_size;
+        u32 sense_size;
+        u32 cdb_size;
+        u16 max_channel;
+        u16 max_target;
+        u32 max_lun;
+} __packed;
+/* Feature Bits */
+#define VIRTIO_SCSI_F_INOUT                    0
+#define VIRTIO_SCSI_F_HOTPLUG                  1
+#define VIRTIO_SCSI_F_CHANGE                   2
+#define VIRTIO_SCSI_F_T10_PI                   3
+/* Response codes */
+#define VIRTIO_SCSI_S_OK                       0
+#define VIRTIO_SCSI_S_OVERRUN                  1
+#define VIRTIO_SCSI_S_ABORTED                  2
+#define VIRTIO_SCSI_S_BAD_TARGET               3
+#define VIRTIO_SCSI_S_RESET                    4
+#define VIRTIO_SCSI_S_BUSY                     5
+#define VIRTIO_SCSI_S_TRANSPORT_FAILURE        6
+#define VIRTIO_SCSI_S_TARGET_FAILURE           7
+#define VIRTIO_SCSI_S_NEXUS_FAILURE            8
+#define VIRTIO_SCSI_S_FAILURE                  9
+#define VIRTIO_SCSI_S_FUNCTION_SUCCEEDED       10
+#define VIRTIO_SCSI_S_FUNCTION_REJECTED        11
+#define VIRTIO_SCSI_S_INCORRECT_LUN            12
+/* Controlq type codes.  */
+#define VIRTIO_SCSI_T_TMF                      0
+#define VIRTIO_SCSI_T_AN_QUERY                 1
+#define VIRTIO_SCSI_T_AN_SUBSCRIBE             2
+/* Valid TMF subtypes.  */
+#define VIRTIO_SCSI_T_TMF_ABORT_TASK           0
+#define VIRTIO_SCSI_T_TMF_ABORT_TASK_SET       1
+#define VIRTIO_SCSI_T_TMF_CLEAR_ACA            2
+#define VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET       3
+#define VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET      4
+#define VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET   5
+#define VIRTIO_SCSI_T_TMF_QUERY_TASK           6
+#define VIRTIO_SCSI_T_TMF_QUERY_TASK_SET       7
+/* Events.  */
+#define VIRTIO_SCSI_T_EVENTS_MISSED            0x80000000
+#define VIRTIO_SCSI_T_NO_EVENT                 0
+#define VIRTIO_SCSI_T_TRANSPORT_RESET          1
+#define VIRTIO_SCSI_T_ASYNC_NOTIFY             2
+#define VIRTIO_SCSI_T_PARAM_CHANGE             3
+/* Reasons of transport reset event */
+#define VIRTIO_SCSI_EVT_RESET_HARD             0
+#define VIRTIO_SCSI_EVT_RESET_RESCAN           1
+#define VIRTIO_SCSI_EVT_RESET_REMOVED          2
+#define VIRTIO_SCSI_S_SIMPLE                   0
+#define VIRTIO_SCSI_S_ORDERED                  1
+#define VIRTIO_SCSI_S_HEAD                     2
+#define VIRTIO_SCSI_S_ACA                      3
+#endif /* _LINUX_VIRTIO_SCSI_H */

diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h new file mode 100644 index 000000000000..af448649a975 --- /dev/null +++ b/include/uapi/linux/virtio_scsi.h
@@ -0,0 +1,164 @@
	1	/*
	2	* This header is BSD licensed so anyone can use the definitions to implement
	3	* compatible drivers/servers.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	15	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
	18	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	19	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	20	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	21	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	22	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	23	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	24	* SUCH DAMAGE.
	25	*/
	26
	27	#ifndef _LINUX_VIRTIO_SCSI_H
	28	#define _LINUX_VIRTIO_SCSI_H
	29
	30	#include <linux/virtio_types.h>
	31
	32	#define VIRTIO_SCSI_CDB_SIZE 32
	33	#define VIRTIO_SCSI_SENSE_SIZE 96
	34
	35	/* SCSI command request, followed by data-out */
	36	struct virtio_scsi_cmd_req {
	37	u8 lun[8]; /* Logical Unit Number */
	38	__virtio64 tag; /* Command identifier */
	39	u8 task_attr; /* Task attribute */
	40	u8 prio; /* SAM command priority field */
	41	u8 crn;
	42	u8 cdb[VIRTIO_SCSI_CDB_SIZE];
	43	} __packed;
	44
	45	/* SCSI command request, followed by protection information */
	46	struct virtio_scsi_cmd_req_pi {
	47	u8 lun[8]; /* Logical Unit Number */
	48	__virtio64 tag; /* Command identifier */
	49	u8 task_attr; /* Task attribute */
	50	u8 prio; /* SAM command priority field */
	51	u8 crn;
	52	__virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
	53	__virtio32 pi_bytesin; /* DataIN PI Number of bytes */
	54	u8 cdb[VIRTIO_SCSI_CDB_SIZE];
	55	} __packed;
	56
	57	/* Response, followed by sense data and data-in */
	58	struct virtio_scsi_cmd_resp {
	59	__virtio32 sense_len; /* Sense data length */
	60	__virtio32 resid; /* Residual bytes in data buffer */
	61	__virtio16 status_qualifier; /* Status qualifier */
	62	u8 status; /* Command completion status */
	63	u8 response; /* Response values */
	64	u8 sense[VIRTIO_SCSI_SENSE_SIZE];
	65	} __packed;
	66
	67	/* Task Management Request */
	68	struct virtio_scsi_ctrl_tmf_req {
	69	__virtio32 type;
	70	__virtio32 subtype;
	71	u8 lun[8];
	72	__virtio64 tag;
	73	} __packed;
	74
	75	struct virtio_scsi_ctrl_tmf_resp {
	76	u8 response;
	77	} __packed;
	78
	79	/* Asynchronous notification query/subscription */
	80	struct virtio_scsi_ctrl_an_req {
	81	__virtio32 type;
	82	u8 lun[8];
	83	__virtio32 event_requested;
	84	} __packed;
	85
	86	struct virtio_scsi_ctrl_an_resp {
	87	__virtio32 event_actual;
	88	u8 response;
	89	} __packed;
	90
	91	struct virtio_scsi_event {
	92	__virtio32 event;
	93	u8 lun[8];
	94	__virtio32 reason;
	95	} __packed;
	96
	97	struct virtio_scsi_config {
	98	u32 num_queues;
	99	u32 seg_max;
	100	u32 max_sectors;
	101	u32 cmd_per_lun;
	102	u32 event_info_size;
	103	u32 sense_size;
	104	u32 cdb_size;
	105	u16 max_channel;
	106	u16 max_target;
	107	u32 max_lun;
	108	} __packed;
	109
	110	/* Feature Bits */
	111	#define VIRTIO_SCSI_F_INOUT 0
	112	#define VIRTIO_SCSI_F_HOTPLUG 1
	113	#define VIRTIO_SCSI_F_CHANGE 2
	114	#define VIRTIO_SCSI_F_T10_PI 3
	115
	116	/* Response codes */
	117	#define VIRTIO_SCSI_S_OK 0
	118	#define VIRTIO_SCSI_S_OVERRUN 1
	119	#define VIRTIO_SCSI_S_ABORTED 2
	120	#define VIRTIO_SCSI_S_BAD_TARGET 3
	121	#define VIRTIO_SCSI_S_RESET 4
	122	#define VIRTIO_SCSI_S_BUSY 5
	123	#define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6
	124	#define VIRTIO_SCSI_S_TARGET_FAILURE 7
	125	#define VIRTIO_SCSI_S_NEXUS_FAILURE 8
	126	#define VIRTIO_SCSI_S_FAILURE 9
	127	#define VIRTIO_SCSI_S_FUNCTION_SUCCEEDED 10
	128	#define VIRTIO_SCSI_S_FUNCTION_REJECTED 11
	129	#define VIRTIO_SCSI_S_INCORRECT_LUN 12
	130
	131	/* Controlq type codes. */
	132	#define VIRTIO_SCSI_T_TMF 0
	133	#define VIRTIO_SCSI_T_AN_QUERY 1
	134	#define VIRTIO_SCSI_T_AN_SUBSCRIBE 2
	135
	136	/* Valid TMF subtypes. */
	137	#define VIRTIO_SCSI_T_TMF_ABORT_TASK 0
	138	#define VIRTIO_SCSI_T_TMF_ABORT_TASK_SET 1
	139	#define VIRTIO_SCSI_T_TMF_CLEAR_ACA 2
	140	#define VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET 3
	141	#define VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET 4
	142	#define VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET 5
	143	#define VIRTIO_SCSI_T_TMF_QUERY_TASK 6
	144	#define VIRTIO_SCSI_T_TMF_QUERY_TASK_SET 7
	145
	146	/* Events. */
	147	#define VIRTIO_SCSI_T_EVENTS_MISSED 0x80000000
	148	#define VIRTIO_SCSI_T_NO_EVENT 0
	149	#define VIRTIO_SCSI_T_TRANSPORT_RESET 1
	150	#define VIRTIO_SCSI_T_ASYNC_NOTIFY 2
	151	#define VIRTIO_SCSI_T_PARAM_CHANGE 3
	152
	153	/* Reasons of transport reset event */
	154	#define VIRTIO_SCSI_EVT_RESET_HARD 0
	155	#define VIRTIO_SCSI_EVT_RESET_RESCAN 1
	156	#define VIRTIO_SCSI_EVT_RESET_REMOVED 2
	157
	158	#define VIRTIO_SCSI_S_SIMPLE 0
	159	#define VIRTIO_SCSI_S_ORDERED 1
	160	#define VIRTIO_SCSI_S_HEAD 2
	161	#define VIRTIO_SCSI_S_ACA 3
	162
	163
	164	#endif /* _LINUX_VIRTIO_SCSI_H */