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 	DID_TARGET_FAILURE = 0x10, /* Permanent target failure, do not retry on
66 				    * other paths */
67 	DID_NEXUS_FAILURE = 0x11,  /* Permanent nexus failure, retry on other
68 				    * paths might yield different results */
69 	DID_ALLOC_FAILURE = 0x12,  /* Space allocation on the device failed */
70 	DID_MEDIUM_ERROR = 0x13,  /* Medium error */
71 	DID_TRANSPORT_MARGINAL = 0x14, /* Transport marginal errors */
72 };
73 
74 #endif /* _SCSI_SCSI_STATUS_H */
75