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author | Michael S. Tsirkin | 2015-02-16 22:35:31 +0100 |
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committer | Michael S. Tsirkin | 2015-02-26 12:42:21 +0100 |
commit | 9fbe302b2a4c349c1a8fa93a3f79f08e7007d80c (patch) | |
tree | 6f5af59a51c6d31a201c62df137801de7f7022fb /include/standard-headers/linux/virtio_scsi.h | |
parent | scripts/update-linux-headers.sh: pull virtio hdrs (diff) | |
download | qemu-9fbe302b2a4c349c1a8fa93a3f79f08e7007d80c.tar.gz qemu-9fbe302b2a4c349c1a8fa93a3f79f08e7007d80c.tar.xz qemu-9fbe302b2a4c349c1a8fa93a3f79f08e7007d80c.zip |
include: import virtio headers from linux 4.0
Add files imported from linux-next (what will become linux 4.0) using
scripts/update-linux-headers.sh
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/standard-headers/linux/virtio_scsi.h')
-rw-r--r-- | include/standard-headers/linux/virtio_scsi.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/include/standard-headers/linux/virtio_scsi.h b/include/standard-headers/linux/virtio_scsi.h new file mode 100644 index 0000000000..78ba9d3635 --- /dev/null +++ b/include/standard-headers/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 "standard-headers/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 { + 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 { + uint32_t num_queues; + uint32_t seg_max; + uint32_t max_sectors; + uint32_t cmd_per_lun; + uint32_t event_info_size; + uint32_t sense_size; + uint32_t cdb_size; + uint16_t max_channel; + uint16_t max_target; + uint32_t 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 */ |