1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright 2012 STEC, Inc.
4 * Copyright (c) 2017 Western Digital Corporation or its affiliates.
12 * Q-channel, 64-bit r/w
14 #define FIT_Q_COMMAND 0x400u
15 #define FIT_QCMD_QID_MASK (0x3 << 1)
16 #define FIT_QCMD_QID0 (0x0 << 1)
17 #define FIT_QCMD_QID_NORMAL FIT_QCMD_QID0
18 #define FIT_QCMD_QID1 (0x1 << 1)
19 #define FIT_QCMD_QID2 (0x2 << 1)
20 #define FIT_QCMD_QID3 (0x3 << 1)
21 #define FIT_QCMD_FLUSH_QUEUE (0ull) /* add QID */
22 #define FIT_QCMD_MSGSIZE_MASK (0x3 << 4)
23 #define FIT_QCMD_MSGSIZE_64 (0x0 << 4)
24 #define FIT_QCMD_MSGSIZE_128 (0x1 << 4)
25 #define FIT_QCMD_MSGSIZE_256 (0x2 << 4)
26 #define FIT_QCMD_MSGSIZE_512 (0x3 << 4)
27 #define FIT_QCMD_ALIGN L1_CACHE_BYTES
32 #define FIT_CONTROL 0x500u
33 #define FIT_CR_HARD_RESET (1u << 0u)
34 #define FIT_CR_SOFT_RESET (1u << 1u)
35 #define FIT_CR_DIS_TIMESTAMPS (1u << 6u)
36 #define FIT_CR_ENABLE_INTERRUPTS (1u << 7u)
41 #define FIT_STATUS 0x510u
42 #define FIT_SR_DRIVE_STATE_MASK 0x000000FFu
43 #define FIT_SR_SIGNATURE (0xFF << 8)
44 #define FIT_SR_PIO_DMA (1 << 16)
45 #define FIT_SR_DRIVE_OFFLINE 0x00
46 #define FIT_SR_DRIVE_INIT 0x01
47 /* #define FIT_SR_DRIVE_READY 0x02 */
48 #define FIT_SR_DRIVE_ONLINE 0x03
49 #define FIT_SR_DRIVE_BUSY 0x04
50 #define FIT_SR_DRIVE_FAULT 0x05
51 #define FIT_SR_DRIVE_DEGRADED 0x06
52 #define FIT_SR_PCIE_LINK_DOWN 0x07
53 #define FIT_SR_DRIVE_SOFT_RESET 0x08
54 #define FIT_SR_DRIVE_INIT_FAULT 0x09
55 #define FIT_SR_DRIVE_BUSY_SANITIZE 0x0A
56 #define FIT_SR_DRIVE_BUSY_ERASE 0x0B
57 #define FIT_SR_DRIVE_FW_BOOTING 0x0C
58 #define FIT_SR_DRIVE_NEED_FW_DOWNLOAD 0xFE
59 #define FIT_SR_DEVICE_MISSING 0xFF
60 #define FIT_SR__RESERVED 0xFFFFFF00u
63 * FIT_STATUS - Status register data definition
65 #define FIT_SR_STATE_MASK (0xFF << 0)
66 #define FIT_SR_SIGNATURE (0xFF << 8)
67 #define FIT_SR_PIO_DMA (1 << 16)
70 * Interrupt status, 32-bit r/w1c (w1c ==> write 1 to clear)
72 #define FIT_INT_STATUS_HOST 0x520u
73 #define FIT_ISH_FW_STATE_CHANGE (1u << 0u)
74 #define FIT_ISH_COMPLETION_POSTED (1u << 1u)
75 #define FIT_ISH_MSG_FROM_DEV (1u << 2u)
76 #define FIT_ISH_UNDEFINED_3 (1u << 3u)
77 #define FIT_ISH_UNDEFINED_4 (1u << 4u)
78 #define FIT_ISH_Q0_FULL (1u << 5u)
79 #define FIT_ISH_Q1_FULL (1u << 6u)
80 #define FIT_ISH_Q2_FULL (1u << 7u)
81 #define FIT_ISH_Q3_FULL (1u << 8u)
82 #define FIT_ISH_QCMD_FIFO_OVERRUN (1u << 9u)
83 #define FIT_ISH_BAD_EXP_ROM_READ (1u << 10u)
85 #define FIT_INT_DEF_MASK \
86 (FIT_ISH_FW_STATE_CHANGE | \
87 FIT_ISH_COMPLETION_POSTED | \
88 FIT_ISH_MSG_FROM_DEV | \
93 FIT_ISH_QCMD_FIFO_OVERRUN | \
94 FIT_ISH_BAD_EXP_ROM_READ)
96 #define FIT_INT_QUEUE_FULL \
102 #define MSI_MSG_NWL_ERROR_0 0x00000000
103 #define MSI_MSG_NWL_ERROR_1 0x00000001
104 #define MSI_MSG_NWL_ERROR_2 0x00000002
105 #define MSI_MSG_NWL_ERROR_3 0x00000003
106 #define MSI_MSG_STATE_CHANGE 0x00000004
107 #define MSI_MSG_COMPLETION_POSTED 0x00000005
108 #define MSI_MSG_MSG_FROM_DEV 0x00000006
109 #define MSI_MSG_RESERVED_0 0x00000007
110 #define MSI_MSG_RESERVED_1 0x00000008
111 #define MSI_MSG_QUEUE_0_FULL 0x00000009
112 #define MSI_MSG_QUEUE_1_FULL 0x0000000A
113 #define MSI_MSG_QUEUE_2_FULL 0x0000000B
114 #define MSI_MSG_QUEUE_3_FULL 0x0000000C
116 #define FIT_INT_RESERVED_MASK \
117 (FIT_ISH_UNDEFINED_3 | \
121 * Interrupt mask, 32-bit r/w
122 * Bit definitions are the same as FIT_INT_STATUS_HOST
124 #define FIT_INT_MASK_HOST 0x528u
127 * Message to device, 32-bit r/w
129 #define FIT_MSG_TO_DEVICE 0x540u
132 * Message from device, 32-bit, r/o
134 #define FIT_MSG_FROM_DEVICE 0x548u
137 * 32-bit messages to/from device, composition/extraction macros
139 #define FIT_MXD_CONS(TYPE, PARAM, DATA) \
140 ((((TYPE) & 0xFFu) << 24u) | \
141 (((PARAM) & 0xFFu) << 16u) | \
142 (((DATA) & 0xFFFFu) << 0u))
143 #define FIT_MXD_TYPE(MXD) (((MXD) >> 24u) & 0xFFu)
144 #define FIT_MXD_PARAM(MXD) (((MXD) >> 16u) & 0xFFu)
145 #define FIT_MXD_DATA(MXD) (((MXD) >> 0u) & 0xFFFFu)
148 * Types of messages to/from device
150 #define FIT_MTD_FITFW_INIT 0x01u
151 #define FIT_MTD_GET_CMDQ_DEPTH 0x02u
152 #define FIT_MTD_SET_COMPQ_DEPTH 0x03u
153 #define FIT_MTD_SET_COMPQ_ADDR 0x04u
154 #define FIT_MTD_ARM_QUEUE 0x05u
155 #define FIT_MTD_CMD_LOG_HOST_ID 0x07u
156 #define FIT_MTD_CMD_LOG_TIME_STAMP_LO 0x08u
157 #define FIT_MTD_CMD_LOG_TIME_STAMP_HI 0x09u
158 #define FIT_MFD_SMART_EXCEEDED 0x10u
159 #define FIT_MFD_POWER_DOWN 0x11u
160 #define FIT_MFD_OFFLINE 0x12u
161 #define FIT_MFD_ONLINE 0x13u
162 #define FIT_MFD_FW_RESTARTING 0x14u
163 #define FIT_MFD_PM_ACTIVE 0x15u
164 #define FIT_MFD_PM_STANDBY 0x16u
165 #define FIT_MFD_PM_SLEEP 0x17u
166 #define FIT_MFD_CMD_PROGRESS 0x18u
168 #define FIT_MTD_DEBUG 0xFEu
169 #define FIT_MFD_DEBUG 0xFFu
171 #define FIT_MFD_MASK (0xFFu)
172 #define FIT_MFD_DATA_MASK (0xFFu)
173 #define FIT_MFD_MSG(x) (((x) >> 24) & FIT_MFD_MASK)
174 #define FIT_MFD_DATA(x) ((x) & FIT_MFD_MASK)
177 * Extra arg to FIT_MSG_TO_DEVICE, 64-bit r/w
178 * Used to set completion queue address (FIT_MTD_SET_COMPQ_ADDR)
179 * (was Response buffer in docs)
181 #define FIT_MSG_TO_DEVICE_ARG 0x580u
184 * Hardware (ASIC) version, 32-bit r/o
186 #define FIT_HW_VERSION 0x588u
189 * Scatter/gather list descriptor.
190 * 32-bytes and must be aligned on a 32-byte boundary.
191 * All fields are in little endian order.
193 struct fit_sg_descriptor {
196 uint64_t host_side_addr;
197 uint64_t dev_side_addr;
198 uint64_t next_desc_ptr;
201 #define FIT_SGD_CONTROL_NOT_LAST 0x000u
202 #define FIT_SGD_CONTROL_LAST 0x40Eu
205 * Header at the beginning of a FIT message. The header
206 * is followed by SSDI requests each 64 bytes.
207 * A FIT message can be up to 512 bytes long and must start
208 * on a 64-byte boundary.
212 uint8_t num_protocol_cmds_coalesced;
213 uint8_t _reserved[62];
216 #define FIT_PROTOCOL_ID_FIT 1
217 #define FIT_PROTOCOL_ID_SSDI 2
218 #define FIT_PROTOCOL_ID_SOFIT 3
221 #define FIT_PROTOCOL_MINOR_VER(mtd_val) ((mtd_val >> 16) & 0xF)
222 #define FIT_PROTOCOL_MAJOR_VER(mtd_val) ((mtd_val >> 20) & 0xF)
225 * Format of a completion entry. The completion queue is circular
226 * and must have at least as many entries as the maximum number
227 * of commands that may be issued to the device.
229 * There are no head/tail pointers. The cycle value is used to
230 * infer the presence of new completion records.
231 * Initially the cycle in all entries is 0, the index is 0, and
232 * the cycle value to expect is 1. When completions are added
233 * their cycle values are set to 1. When the index wraps the
234 * cycle value to expect is incremented.
236 * Command_context is opaque and taken verbatim from the SSDI command.
237 * All other fields are big endian.
239 #define FIT_PROTOCOL_VERSION_0 0
242 * Protocol major version 1 completion entry.
243 * The major protocol version is found in bits
244 * 20-23 of the FIT_MTD_FITFW_INIT response.
246 struct fit_completion_entry_v1 {
247 __be32 num_returned_bytes;
249 uint8_t status; /* SCSI status */
252 #define FIT_PROTOCOL_VERSION_1 1
253 #define FIT_PROTOCOL_VERSION_CURRENT FIT_PROTOCOL_VERSION_1
255 struct fit_comp_error_info {
256 uint8_t type:7; /* 00: Bits0-6 indicates the type of sense data. */
257 uint8_t valid:1; /* 00: Bit 7 := 1 ==> info field is valid. */
258 uint8_t reserved0; /* 01: Obsolete field */
259 uint8_t key:4; /* 02: Bits0-3 indicate the sense key. */
260 uint8_t reserved2:1; /* 02: Reserved bit. */
261 uint8_t bad_length:1; /* 02: Incorrect Length Indicator */
262 uint8_t end_medium:1; /* 02: End of Medium */
263 uint8_t file_mark:1; /* 02: Filemark */
264 uint8_t info[4]; /* 03: */
265 uint8_t reserved1; /* 07: Additional Sense Length */
266 uint8_t cmd_spec[4]; /* 08: Command Specific Information */
267 uint8_t code; /* 0C: Additional Sense Code */
268 uint8_t qual; /* 0D: Additional Sense Code Qualifier */
269 uint8_t fruc; /* 0E: Field Replaceable Unit Code */
270 uint8_t sks_high:7; /* 0F: Sense Key Specific (MSB) */
271 uint8_t sks_valid:1; /* 0F: Sense Key Specific Valid */
272 uint16_t sks_low; /* 10: Sense Key Specific (LSW) */
273 uint16_t reserved3; /* 12: Part of additional sense bytes (unused) */
274 uint16_t uec; /* 14: Additional Sense Bytes */
275 uint64_t per __packed; /* 16: Additional Sense Bytes */
276 uint8_t reserved4[2]; /* 1E: Additional Sense Bytes (unused) */
280 /* Task management constants */
281 #define SOFT_TASK_SIMPLE 0x00
282 #define SOFT_TASK_HEAD_OF_QUEUE 0x01
283 #define SOFT_TASK_ORDERED 0x02
285 /* Version zero has the last 32 bits reserved,
286 * Version one has the last 32 bits sg_list_len_bytes;
288 struct skd_command_header {
289 __be64 sg_list_dma_address;
292 uint8_t add_cdb_len; /* In 32 bit words */
293 __be32 sg_list_len_bytes;
296 struct skd_scsi_request {
297 struct skd_command_header hdr;
298 unsigned char cdb[16];
299 /* unsigned char _reserved[16]; */
302 struct driver_inquiry_data {
303 uint8_t peripheral_device_type:5;
307 __be16 pcie_bus_number;
308 uint8_t pcie_device_number;
309 uint8_t pcie_function_number;
310 uint8_t pcie_link_speed;
311 uint8_t pcie_link_lanes;
312 __be16 pcie_vendor_id;
313 __be16 pcie_device_id;
314 __be16 pcie_subsystem_vendor_id;
315 __be16 pcie_subsystem_device_id;
316 uint8_t reserved1[2];
317 uint8_t reserved2[3];
318 uint8_t driver_version_length;
319 uint8_t driver_version[0x14];
322 #endif /* SKD_S1120_H */