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| /* SPDX-License-Identifier: GPL-2.0 */
| #ifndef __USB_UAS_H__
| #define __USB_UAS_H__
|
| #include <scsi/scsi.h>
| #include <scsi/scsi_cmnd.h>
|
| /* Common header for all IUs */
| struct iu {
| __u8 iu_id;
| __u8 rsvd1;
| __be16 tag;
| } __attribute__((__packed__));
|
| enum {
| IU_ID_COMMAND = 0x01,
| IU_ID_STATUS = 0x03,
| IU_ID_RESPONSE = 0x04,
| IU_ID_TASK_MGMT = 0x05,
| IU_ID_READ_READY = 0x06,
| IU_ID_WRITE_READY = 0x07,
| };
|
| enum {
| TMF_ABORT_TASK = 0x01,
| TMF_ABORT_TASK_SET = 0x02,
| TMF_CLEAR_TASK_SET = 0x04,
| TMF_LOGICAL_UNIT_RESET = 0x08,
| TMF_I_T_NEXUS_RESET = 0x10,
| TMF_CLEAR_ACA = 0x40,
| TMF_QUERY_TASK = 0x80,
| TMF_QUERY_TASK_SET = 0x81,
| TMF_QUERY_ASYNC_EVENT = 0x82,
| };
|
| enum {
| RC_TMF_COMPLETE = 0x00,
| RC_INVALID_INFO_UNIT = 0x02,
| RC_TMF_NOT_SUPPORTED = 0x04,
| RC_TMF_FAILED = 0x05,
| RC_TMF_SUCCEEDED = 0x08,
| RC_INCORRECT_LUN = 0x09,
| RC_OVERLAPPED_TAG = 0x0a,
| };
|
| struct command_iu {
| __u8 iu_id;
| __u8 rsvd1;
| __be16 tag;
| __u8 prio_attr;
| __u8 rsvd5;
| __u8 len;
| __u8 rsvd7;
| struct scsi_lun lun;
| __u8 cdb[16]; /* XXX: Overflow-checking tools may misunderstand */
| } __attribute__((__packed__));
|
| struct task_mgmt_iu {
| __u8 iu_id;
| __u8 rsvd1;
| __be16 tag;
| __u8 function;
| __u8 rsvd2;
| __be16 task_tag;
| struct scsi_lun lun;
| } __attribute__((__packed__));
|
| /*
| * Also used for the Read Ready and Write Ready IUs since they have the
| * same first four bytes
| */
| struct sense_iu {
| __u8 iu_id;
| __u8 rsvd1;
| __be16 tag;
| __be16 status_qual;
| __u8 status;
| __u8 rsvd7[7];
| __be16 len;
| __u8 sense[SCSI_SENSE_BUFFERSIZE];
| } __attribute__((__packed__));
|
| struct response_iu {
| __u8 iu_id;
| __u8 rsvd1;
| __be16 tag;
| __u8 add_response_info[3];
| __u8 response_code;
| } __attribute__((__packed__));
|
| struct usb_pipe_usage_descriptor {
| __u8 bLength;
| __u8 bDescriptorType;
|
| __u8 bPipeID;
| __u8 Reserved;
| } __attribute__((__packed__));
|
| enum {
| CMD_PIPE_ID = 1,
| STATUS_PIPE_ID = 2,
| DATA_IN_PIPE_ID = 3,
| DATA_OUT_PIPE_ID = 4,
|
| UAS_SIMPLE_TAG = 0,
| UAS_HEAD_TAG = 1,
| UAS_ORDERED_TAG = 2,
| UAS_ACA = 4,
| };
| #endif
|
|
