172 lines
5.9 KiB
C
172 lines
5.9 KiB
C
/*
|
|
* 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 "standard-headers/linux/virtio_types.h"
|
|
|
|
/* Default values of the CDB and sense data size configuration fields */
|
|
#define VIRTIO_SCSI_CDB_DEFAULT_SIZE 32
|
|
#define VIRTIO_SCSI_SENSE_DEFAULT_SIZE 96
|
|
|
|
#ifndef VIRTIO_SCSI_CDB_SIZE
|
|
#define VIRTIO_SCSI_CDB_SIZE VIRTIO_SCSI_CDB_DEFAULT_SIZE
|
|
#endif
|
|
#ifndef VIRTIO_SCSI_SENSE_SIZE
|
|
#define VIRTIO_SCSI_SENSE_SIZE VIRTIO_SCSI_SENSE_DEFAULT_SIZE
|
|
#endif
|
|
|
|
/* SCSI command request, followed by data-out */
|
|
struct virtio_scsi_cmd_req {
|
|
uint8_t lun[8]; /* Logical Unit Number */
|
|
__virtio64 tag; /* Command identifier */
|
|
uint8_t task_attr; /* Task attribute */
|
|
uint8_t prio; /* SAM command priority field */
|
|
uint8_t crn;
|
|
uint8_t cdb[VIRTIO_SCSI_CDB_SIZE];
|
|
} QEMU_PACKED;
|
|
|
|
/* SCSI command request, followed by protection information */
|
|
struct virtio_scsi_cmd_req_pi {
|
|
uint8_t lun[8]; /* Logical Unit Number */
|
|
__virtio64 tag; /* Command identifier */
|
|
uint8_t task_attr; /* Task attribute */
|
|
uint8_t prio; /* SAM command priority field */
|
|
uint8_t crn;
|
|
__virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
|
|
__virtio32 pi_bytesin; /* DataIN PI Number of bytes */
|
|
uint8_t cdb[VIRTIO_SCSI_CDB_SIZE];
|
|
} QEMU_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 */
|
|
uint8_t status; /* Command completion status */
|
|
uint8_t response; /* Response values */
|
|
uint8_t sense[VIRTIO_SCSI_SENSE_SIZE];
|
|
} QEMU_PACKED;
|
|
|
|
/* Task Management Request */
|
|
struct virtio_scsi_ctrl_tmf_req {
|
|
__virtio32 type;
|
|
__virtio32 subtype;
|
|
uint8_t lun[8];
|
|
__virtio64 tag;
|
|
} QEMU_PACKED;
|
|
|
|
struct virtio_scsi_ctrl_tmf_resp {
|
|
uint8_t response;
|
|
} QEMU_PACKED;
|
|
|
|
/* Asynchronous notification query/subscription */
|
|
struct virtio_scsi_ctrl_an_req {
|
|
__virtio32 type;
|
|
uint8_t lun[8];
|
|
__virtio32 event_requested;
|
|
} QEMU_PACKED;
|
|
|
|
struct virtio_scsi_ctrl_an_resp {
|
|
__virtio32 event_actual;
|
|
uint8_t response;
|
|
} QEMU_PACKED;
|
|
|
|
struct virtio_scsi_event {
|
|
__virtio32 event;
|
|
uint8_t lun[8];
|
|
__virtio32 reason;
|
|
} QEMU_PACKED;
|
|
|
|
struct virtio_scsi_config {
|
|
__virtio32 num_queues;
|
|
__virtio32 seg_max;
|
|
__virtio32 max_sectors;
|
|
__virtio32 cmd_per_lun;
|
|
__virtio32 event_info_size;
|
|
__virtio32 sense_size;
|
|
__virtio32 cdb_size;
|
|
__virtio16 max_channel;
|
|
__virtio16 max_target;
|
|
__virtio32 max_lun;
|
|
} QEMU_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 */
|