1/*
2 * osd_sense.h - OSD Related sense handling definitions.
3 *
4 * Copyright (C) 2008 Panasas Inc.  All rights reserved.
5 *
6 * Authors:
7 *   Boaz Harrosh <bharrosh@panasas.com>
8 *   Benny Halevy <bhalevy@panasas.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 *
13 * This file contains types and constants that are defined by the protocol
14 * Note: All names and symbols are taken from the OSD standard's text.
15 */
16#ifndef __OSD_SENSE_H__
17#define __OSD_SENSE_H__
18
19#include <scsi/osd_protocol.h>
20
21/* SPC3r23 4.5.6 Sense key and sense code definitions table 27 */
22enum scsi_sense_keys {
23	scsi_sk_no_sense        = 0x0,
24	scsi_sk_recovered_error = 0x1,
25	scsi_sk_not_ready       = 0x2,
26	scsi_sk_medium_error    = 0x3,
27	scsi_sk_hardware_error  = 0x4,
28	scsi_sk_illegal_request = 0x5,
29	scsi_sk_unit_attention  = 0x6,
30	scsi_sk_data_protect    = 0x7,
31	scsi_sk_blank_check     = 0x8,
32	scsi_sk_vendor_specific = 0x9,
33	scsi_sk_copy_aborted    = 0xa,
34	scsi_sk_aborted_command = 0xb,
35	scsi_sk_volume_overflow = 0xd,
36	scsi_sk_miscompare      = 0xe,
37	scsi_sk_reserved        = 0xf,
38};
39
40/* SPC3r23 4.5.6 Sense key and sense code definitions table 28 */
41/* Note: only those which can be returned by an OSD target. Most of
42 *       these errors are taken care of by the generic scsi layer.
43 */
44enum osd_additional_sense_codes {
45	scsi_no_additional_sense_information			= 0x0000,
46	scsi_operation_in_progress				= 0x0016,
47	scsi_cleaning_requested					= 0x0017,
48	scsi_lunr_cause_not_reportable				= 0x0400,
49	scsi_logical_unit_is_in_process_of_becoming_ready	= 0x0401,
50	scsi_lunr_initializing_command_required			= 0x0402,
51	scsi_lunr_manual_intervention_required			= 0x0403,
52	scsi_lunr_operation_in_progress				= 0x0407,
53	scsi_lunr_selftest_in_progress				= 0x0409,
54	scsi_luna_asymmetric_access_state_transition		= 0x040a,
55	scsi_luna_target_port_in_standby_state			= 0x040b,
56	scsi_luna_target_port_in_unavailable_state		= 0x040c,
57	scsi_lunr_notify_enable_spinup_required			= 0x0411,
58	scsi_logical_unit_does_not_respond_to_selection		= 0x0500,
59	scsi_logical_unit_communication_failure			= 0x0800,
60	scsi_logical_unit_communication_timeout			= 0x0801,
61	scsi_logical_unit_communication_parity_error		= 0x0802,
62	scsi_error_log_overflow					= 0x0a00,
63	scsi_warning						= 0x0b00,
64	scsi_warning_specified_temperature_exceeded		= 0x0b01,
65	scsi_warning_enclosure_degraded				= 0x0b02,
66	scsi_write_error_unexpected_unsolicited_data		= 0x0c0c,
67	scsi_write_error_not_enough_unsolicited_data		= 0x0c0d,
68	scsi_invalid_information_unit				= 0x0e00,
69	scsi_invalid_field_in_command_information_unit		= 0x0e03,
70	scsi_read_error_failed_retransmission_request		= 0x1113,
71	scsi_parameter_list_length_error			= 0x1a00,
72	scsi_invalid_command_operation_code			= 0x2000,
73	scsi_invalid_field_in_cdb				= 0x2400,
74	osd_security_audit_value_frozen				= 0x2404,
75	osd_security_working_key_frozen				= 0x2405,
76	osd_nonce_not_unique					= 0x2406,
77	osd_nonce_timestamp_out_of_range			= 0x2407,
78	scsi_logical_unit_not_supported				= 0x2500,
79	scsi_invalid_field_in_parameter_list			= 0x2600,
80	scsi_parameter_not_supported				= 0x2601,
81	scsi_parameter_value_invalid				= 0x2602,
82	scsi_invalid_release_of_persistent_reservation		= 0x2604,
83	osd_invalid_dataout_buffer_integrity_check_value	= 0x260f,
84	scsi_not_ready_to_ready_change_medium_may_have_changed	= 0x2800,
85	scsi_power_on_reset_or_bus_device_reset_occurred	= 0x2900,
86	scsi_power_on_occurred					= 0x2901,
87	scsi_scsi_bus_reset_occurred				= 0x2902,
88	scsi_bus_device_reset_function_occurred			= 0x2903,
89	scsi_device_internal_reset				= 0x2904,
90	scsi_transceiver_mode_changed_to_single_ended		= 0x2905,
91	scsi_transceiver_mode_changed_to_lvd			= 0x2906,
92	scsi_i_t_nexus_loss_occurred				= 0x2907,
93	scsi_parameters_changed					= 0x2a00,
94	scsi_mode_parameters_changed				= 0x2a01,
95	scsi_asymmetric_access_state_changed			= 0x2a06,
96	scsi_priority_changed					= 0x2a08,
97	scsi_command_sequence_error				= 0x2c00,
98	scsi_previous_busy_status				= 0x2c07,
99	scsi_previous_task_set_full_status			= 0x2c08,
100	scsi_previous_reservation_conflict_status		= 0x2c09,
101	osd_partition_or_collection_contains_user_objects	= 0x2c0a,
102	scsi_commands_cleared_by_another_initiator		= 0x2f00,
103	scsi_cleaning_failure					= 0x3007,
104	scsi_enclosure_failure					= 0x3400,
105	scsi_enclosure_services_failure				= 0x3500,
106	scsi_unsupported_enclosure_function			= 0x3501,
107	scsi_enclosure_services_unavailable			= 0x3502,
108	scsi_enclosure_services_transfer_failure		= 0x3503,
109	scsi_enclosure_services_transfer_refused		= 0x3504,
110	scsi_enclosure_services_checksum_error			= 0x3505,
111	scsi_rounded_parameter					= 0x3700,
112	osd_read_past_end_of_user_object			= 0x3b17,
113	scsi_logical_unit_has_not_self_configured_yet		= 0x3e00,
114	scsi_logical_unit_failure				= 0x3e01,
115	scsi_timeout_on_logical_unit				= 0x3e02,
116	scsi_logical_unit_failed_selftest			= 0x3e03,
117	scsi_logical_unit_unable_to_update_selftest_log		= 0x3e04,
118	scsi_target_operating_conditions_have_changed		= 0x3f00,
119	scsi_microcode_has_been_changed				= 0x3f01,
120	scsi_inquiry_data_has_changed				= 0x3f03,
121	scsi_echo_buffer_overwritten				= 0x3f0f,
122	scsi_diagnostic_failure_on_component_nn_first		= 0x4080,
123	scsi_diagnostic_failure_on_component_nn_last		= 0x40ff,
124	scsi_message_error					= 0x4300,
125	scsi_internal_target_failure				= 0x4400,
126	scsi_select_or_reselect_failure				= 0x4500,
127	scsi_scsi_parity_error					= 0x4700,
128	scsi_data_phase_crc_error_detected			= 0x4701,
129	scsi_scsi_parity_error_detected_during_st_data_phase	= 0x4702,
130	scsi_asynchronous_information_protection_error_detected	= 0x4704,
131	scsi_protocol_service_crc_error				= 0x4705,
132	scsi_phy_test_function_in_progress			= 0x4706,
133	scsi_invalid_message_error				= 0x4900,
134	scsi_command_phase_error				= 0x4a00,
135	scsi_data_phase_error					= 0x4b00,
136	scsi_logical_unit_failed_self_configuration		= 0x4c00,
137	scsi_overlapped_commands_attempted			= 0x4e00,
138	osd_quota_error						= 0x5507,
139	scsi_failure_prediction_threshold_exceeded		= 0x5d00,
140	scsi_failure_prediction_threshold_exceeded_false	= 0x5dff,
141	scsi_voltage_fault					= 0x6500,
142};
143
144enum scsi_descriptor_types {
145	scsi_sense_information			= 0x0,
146	scsi_sense_command_specific_information	= 0x1,
147	scsi_sense_key_specific			= 0x2,
148	scsi_sense_field_replaceable_unit	= 0x3,
149	scsi_sense_stream_commands		= 0x4,
150	scsi_sense_block_commands		= 0x5,
151	osd_sense_object_identification		= 0x6,
152	osd_sense_response_integrity_check	= 0x7,
153	osd_sense_attribute_identification	= 0x8,
154	scsi_sense_ata_return			= 0x9,
155
156	scsi_sense_Reserved_first		= 0x0A,
157	scsi_sense_Reserved_last		= 0x7F,
158	scsi_sense_Vendor_specific_first	= 0x80,
159	scsi_sense_Vendor_specific_last		= 0xFF,
160};
161
162struct scsi_sense_descriptor { /* for picking into desc type */
163	u8	descriptor_type; /* one of enum scsi_descriptor_types */
164	u8	additional_length; /* n - 1 */
165	u8	data[];
166} __packed;
167
168/* OSD deploys only scsi descriptor_based sense buffers */
169struct scsi_sense_descriptor_based {
170/*0*/	u8 	response_code; /* 0x72 or 0x73 */
171/*1*/	u8 	sense_key; /* one of enum scsi_sense_keys (4 lower bits) */
172/*2*/	__be16	additional_sense_code; /* enum osd_additional_sense_codes */
173/*4*/	u8	Reserved[3];
174/*7*/	u8	additional_sense_length; /* n - 7 */
175/*8*/	struct	scsi_sense_descriptor ssd[0]; /* variable length, 1 or more */
176} __packed;
177
178/* some descriptors deployed by OSD */
179
180/* SPC3r23 4.5.2.3 Command-specific information sense data descriptor */
181/* Note: this is the same for descriptor_type=00 but with type=00 the
182 *        Reserved[0] == 0x80 (ie. bit-7 set)
183 */
184struct scsi_sense_command_specific_data_descriptor {
185/*0*/	u8	descriptor_type; /* (00h/01h) */
186/*1*/	u8	additional_length; /* (0Ah) */
187/*2*/	u8	Reserved[2];
188/*4*/	__be64  information;
189} __packed;
190/*12*/
191
192struct scsi_sense_key_specific_data_descriptor {
193/*0*/	u8	descriptor_type; /* (02h) */
194/*1*/	u8	additional_length; /* (06h) */
195/*2*/	u8	Reserved[2];
196/* SKSV, C/D, Reserved (2), BPV, BIT POINTER (3) */
197/*4*/	u8	sksv_cd_bpv_bp;
198/*5*/	__be16	value; /* field-pointer/progress-value/retry-count/... */
199/*7*/	u8	Reserved2;
200} __packed;
201/*8*/
202
203/* 4.16.2.1 OSD error identification sense data descriptor - table 52 */
204/* Note: these bits are defined LE order for easy definition, this way the BIT()
205 * number is the same as in the documentation. Below members at
206 * osd_sense_identification_data_descriptor are therefore defined __le32.
207 */
208enum osd_command_functions_bits {
209	OSD_CFB_COMMAND		 = BIT(4),
210	OSD_CFB_CMD_CAP_VERIFIED = BIT(5),
211	OSD_CFB_VALIDATION	 = BIT(7),
212	OSD_CFB_IMP_ST_ATT	 = BIT(12),
213	OSD_CFB_SET_ATT		 = BIT(20),
214	OSD_CFB_SA_CAP_VERIFIED	 = BIT(21),
215	OSD_CFB_GET_ATT		 = BIT(28),
216	OSD_CFB_GA_CAP_VERIFIED	 = BIT(29),
217};
218
219struct osd_sense_identification_data_descriptor {
220/*0*/	u8	descriptor_type; /* (06h) */
221/*1*/	u8	additional_length; /* (1Eh) */
222/*2*/	u8	Reserved[6];
223/*8*/	__le32	not_initiated_functions; /*osd_command_functions_bits*/
224/*12*/	__le32	completed_functions; /*osd_command_functions_bits*/
225/*16*/ 	__be64	partition_id;
226/*24*/	__be64	object_id;
227} __packed;
228/*32*/
229
230struct osd_sense_response_integrity_check_descriptor {
231/*0*/	u8	descriptor_type; /* (07h) */
232/*1*/	u8	additional_length; /* (20h) */
233/*2*/	u8	integrity_check_value[32]; /*FIXME: OSDv2_CRYPTO_KEYID_SIZE*/
234} __packed;
235/*34*/
236
237struct osd_sense_attributes_data_descriptor {
238/*0*/	u8	descriptor_type; /* (08h) */
239/*1*/	u8	additional_length; /* (n-2) */
240/*2*/	u8	Reserved[6];
241	struct osd_sense_attr {
242/*8*/		__be32	attr_page;
243/*12*/		__be32	attr_id;
244/*16*/	} sense_attrs[0]; /* 1 or more */
245} __packed;
246/*variable*/
247
248/* Dig into scsi_sk_illegal_request/scsi_invalid_field_in_cdb errors */
249
250/*FIXME: Support also field in CAPS*/
251#define OSD_CDB_OFFSET(F) offsetof(struct osd_cdb_head, F)
252
253enum osdv2_cdb_field_offset {
254	OSDv1_CFO_STARTING_BYTE	= OSD_CDB_OFFSET(v1.start_address),
255	OSD_CFO_STARTING_BYTE	= OSD_CDB_OFFSET(v2.start_address),
256	OSD_CFO_PARTITION_ID	= OSD_CDB_OFFSET(partition),
257	OSD_CFO_OBJECT_ID	= OSD_CDB_OFFSET(object),
258	OSD_CFO_PERMISSIONS	= sizeof(struct osd_cdb_head) +
259					offsetof(struct osd_capability_head,
260						 permissions_bit_mask),
261};
262
263#endif /* ndef __OSD_SENSE_H__ */
264