1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #ifndef _SCSI_SCSI_STATUS_H
4 #define _SCSI_SCSI_STATUS_H
5
6 #include <linux/types.h>
7 #include <scsi/scsi_proto.h>
8
9 /* Message codes. */
10 enum scsi_msg_byte {
11 COMMAND_COMPLETE = 0x00,
12 EXTENDED_MESSAGE = 0x01,
13 SAVE_POINTERS = 0x02,
14 RESTORE_POINTERS = 0x03,
15 DISCONNECT = 0x04,
16 INITIATOR_ERROR = 0x05,
17 ABORT_TASK_SET = 0x06,
18 MESSAGE_REJECT = 0x07,
19 NOP = 0x08,
20 MSG_PARITY_ERROR = 0x09,
21 LINKED_CMD_COMPLETE = 0x0a,
22 LINKED_FLG_CMD_COMPLETE = 0x0b,
23 TARGET_RESET = 0x0c,
24 ABORT_TASK = 0x0d,
25 CLEAR_TASK_SET = 0x0e,
26 INITIATE_RECOVERY = 0x0f, /* SCSI-II only */
27 RELEASE_RECOVERY = 0x10, /* SCSI-II only */
28 TERMINATE_IO_PROC = 0x11, /* SCSI-II only */
29 CLEAR_ACA = 0x16,
30 LOGICAL_UNIT_RESET = 0x17,
31 SIMPLE_QUEUE_TAG = 0x20,
32 HEAD_OF_QUEUE_TAG = 0x21,
33 ORDERED_QUEUE_TAG = 0x22,
34 IGNORE_WIDE_RESIDUE = 0x23,
35 ACA = 0x24,
36 QAS_REQUEST = 0x55,
37
38 /* Old SCSI2 names, don't use in new code */
39 BUS_DEVICE_RESET = TARGET_RESET,
40 ABORT = ABORT_TASK_SET,
41 };
42
43 /* Host byte codes. */
44 enum scsi_host_status {
45 DID_OK = 0x00, /* NO error */
46 DID_NO_CONNECT = 0x01, /* Couldn't connect before timeout period */
47 DID_BUS_BUSY = 0x02, /* BUS stayed busy through time out period */
48 DID_TIME_OUT = 0x03, /* TIMED OUT for other reason */
49 DID_BAD_TARGET = 0x04, /* BAD target. */
50 DID_ABORT = 0x05, /* Told to abort for some other reason */
51 DID_PARITY = 0x06, /* Parity error */
52 DID_ERROR = 0x07, /* Internal error */
53 DID_RESET = 0x08, /* Reset by somebody. */
54 DID_BAD_INTR = 0x09, /* Got an interrupt we weren't expecting. */
55 DID_PASSTHROUGH = 0x0a, /* Force command past mid-layer */
56 DID_SOFT_ERROR = 0x0b, /* The low level driver just wish a retry */
57 DID_IMM_RETRY = 0x0c, /* Retry without decrementing retry count */
58 DID_REQUEUE = 0x0d, /* Requeue command (no immediate retry) also
59 * without decrementing the retry count */
60 DID_TRANSPORT_DISRUPTED = 0x0e, /* Transport error disrupted execution
61 * and the driver blocked the port to
62 * recover the link. Transport class will
63 * retry or fail IO */
64 DID_TRANSPORT_FAILFAST = 0x0f, /* Transport class fastfailed the io */
65 /*
66 * We used to have DID_TARGET_FAILURE, DID_NEXUS_FAILURE,
67 * DID_ALLOC_FAILURE and DID_MEDIUM_ERROR at 0x10 - 0x13. For compat
68 * with userspace apps that parse the host byte for SG IO, we leave
69 * that block of codes unused and start at 0x14 below.
70 */
71 DID_TRANSPORT_MARGINAL = 0x14, /* Transport marginal errors */
72 };
73
74 #endif /* _SCSI_SCSI_STATUS_H */
75
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