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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
348748b0 SAS |
2 | #ifndef __USB_UAS_H__ |
3 | #define __USB_UAS_H__ | |
4 | ||
5 | #include <scsi/scsi.h> | |
6 | #include <scsi/scsi_cmnd.h> | |
7 | ||
8 | /* Common header for all IUs */ | |
9 | struct iu { | |
10 | __u8 iu_id; | |
11 | __u8 rsvd1; | |
12 | __be16 tag; | |
d24354bb | 13 | } __attribute__((__packed__)); |
348748b0 SAS |
14 | |
15 | enum { | |
16 | IU_ID_COMMAND = 0x01, | |
17 | IU_ID_STATUS = 0x03, | |
18 | IU_ID_RESPONSE = 0x04, | |
19 | IU_ID_TASK_MGMT = 0x05, | |
20 | IU_ID_READ_READY = 0x06, | |
21 | IU_ID_WRITE_READY = 0x07, | |
22 | }; | |
23 | ||
023b515e GH |
24 | enum { |
25 | TMF_ABORT_TASK = 0x01, | |
26 | TMF_ABORT_TASK_SET = 0x02, | |
27 | TMF_CLEAR_TASK_SET = 0x04, | |
28 | TMF_LOGICAL_UNIT_RESET = 0x08, | |
29 | TMF_I_T_NEXUS_RESET = 0x10, | |
30 | TMF_CLEAR_ACA = 0x40, | |
31 | TMF_QUERY_TASK = 0x80, | |
32 | TMF_QUERY_TASK_SET = 0x81, | |
33 | TMF_QUERY_ASYNC_EVENT = 0x82, | |
34 | }; | |
35 | ||
36 | enum { | |
37 | RC_TMF_COMPLETE = 0x00, | |
38 | RC_INVALID_INFO_UNIT = 0x02, | |
39 | RC_TMF_NOT_SUPPORTED = 0x04, | |
40 | RC_TMF_FAILED = 0x05, | |
41 | RC_TMF_SUCCEEDED = 0x08, | |
42 | RC_INCORRECT_LUN = 0x09, | |
43 | RC_OVERLAPPED_TAG = 0x0a, | |
44 | }; | |
45 | ||
348748b0 SAS |
46 | struct command_iu { |
47 | __u8 iu_id; | |
48 | __u8 rsvd1; | |
49 | __be16 tag; | |
50 | __u8 prio_attr; | |
51 | __u8 rsvd5; | |
52 | __u8 len; | |
53 | __u8 rsvd7; | |
54 | struct scsi_lun lun; | |
55 | __u8 cdb[16]; /* XXX: Overflow-checking tools may misunderstand */ | |
d24354bb | 56 | } __attribute__((__packed__)); |
348748b0 | 57 | |
023b515e GH |
58 | struct task_mgmt_iu { |
59 | __u8 iu_id; | |
60 | __u8 rsvd1; | |
61 | __be16 tag; | |
62 | __u8 function; | |
63 | __u8 rsvd2; | |
64 | __be16 task_tag; | |
65 | struct scsi_lun lun; | |
d24354bb | 66 | } __attribute__((__packed__)); |
023b515e | 67 | |
348748b0 SAS |
68 | /* |
69 | * Also used for the Read Ready and Write Ready IUs since they have the | |
70 | * same first four bytes | |
71 | */ | |
72 | struct sense_iu { | |
73 | __u8 iu_id; | |
74 | __u8 rsvd1; | |
75 | __be16 tag; | |
76 | __be16 status_qual; | |
77 | __u8 status; | |
78 | __u8 rsvd7[7]; | |
79 | __be16 len; | |
80 | __u8 sense[SCSI_SENSE_BUFFERSIZE]; | |
d24354bb | 81 | } __attribute__((__packed__)); |
348748b0 | 82 | |
e52e0314 | 83 | struct response_iu { |
023b515e GH |
84 | __u8 iu_id; |
85 | __u8 rsvd1; | |
86 | __be16 tag; | |
00d202cc | 87 | __u8 add_response_info[3]; |
023b515e | 88 | __u8 response_code; |
d24354bb | 89 | } __attribute__((__packed__)); |
023b515e | 90 | |
ee398b59 SAS |
91 | struct usb_pipe_usage_descriptor { |
92 | __u8 bLength; | |
93 | __u8 bDescriptorType; | |
94 | ||
95 | __u8 bPipeID; | |
96 | __u8 Reserved; | |
97 | } __attribute__((__packed__)); | |
98 | ||
348748b0 SAS |
99 | enum { |
100 | CMD_PIPE_ID = 1, | |
101 | STATUS_PIPE_ID = 2, | |
102 | DATA_IN_PIPE_ID = 3, | |
103 | DATA_OUT_PIPE_ID = 4, | |
104 | ||
105 | UAS_SIMPLE_TAG = 0, | |
106 | UAS_HEAD_TAG = 1, | |
107 | UAS_ORDERED_TAG = 2, | |
108 | UAS_ACA = 4, | |
109 | }; | |
110 | #endif |