xref: /freebsd/sys/dev/isci/scil/sati_translator_sequence.h (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1 /*-
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56 #ifndef _SATI_TRANSLATOR_SEQUENCE_H_
57 #define _SATI_TRANSLATOR_SEQUENCE_H_
58 
59 /**
60  * @file
61  * @brief This file contains all of the defintions for the SATI translator
62  *        sequence.  A translator sequence is simply a definition for the
63  *        various sequences of commands that occur in this translator.
64  */
65 
66 #include <dev/isci/scil/sati_device.h>
67 
68 /**
69  * @enum _SATI_TRANSLATOR_SEQUENCE_TYPE
70  *
71  * @brief This enumeration defines the possible sequence types for the
72  *        translator.
73  */
74 typedef enum _SATI_TRANSLATOR_SEQUENCE_TYPE
75 {
76    // SCSI Primary Command (SPC) sequences.
77    SATI_SEQUENCE_REPORT_LUNS,
78    SATI_SEQUENCE_TEST_UNIT_READY,
79    SATI_SEQUENCE_INQUIRY_STANDARD,
80    SATI_SEQUENCE_INQUIRY_SUPPORTED_PAGES,
81    SATI_SEQUENCE_INQUIRY_SERIAL_NUMBER,
82    SATI_SEQUENCE_INQUIRY_DEVICE_ID,
83    SATI_SEQUENCE_INQUIRY_ATA_INFORMATION,
84    SATI_SEQUENCE_INQUIRY_BLOCK_DEVICE,
85    SATI_SEQUENCE_INQUIRY_EXECUTE_DEVICE_DIAG,
86    SATI_SEQUENCE_MODE_SENSE_6_CACHING,
87    SATI_SEQUENCE_MODE_SENSE_6_INFORMATIONAL_EXCP_CONTROL,
88    SATI_SEQUENCE_MODE_SENSE_6_READ_WRITE_ERROR,
89    SATI_SEQUENCE_MODE_SENSE_6_DISCONNECT_RECONNECT,
90    SATI_SEQUENCE_MODE_SENSE_6_CONTROL,
91    SATI_SEQUENCE_MODE_SENSE_6_POWER_CONDITION,
92    SATI_SEQUENCE_MODE_SENSE_6_ALL_PAGES,
93    SATI_SEQUENCE_MODE_SENSE_10_CACHING,
94    SATI_SEQUENCE_MODE_SENSE_10_INFORMATIONAL_EXCP_CONTROL,
95    SATI_SEQUENCE_MODE_SENSE_10_READ_WRITE_ERROR,
96    SATI_SEQUENCE_MODE_SENSE_10_DISCONNECT_RECONNECT,
97    SATI_SEQUENCE_MODE_SENSE_10_CONTROL,
98    SATI_SEQUENCE_MODE_SENSE_10_POWER_CONDITION,
99    SATI_SEQUENCE_MODE_SENSE_10_ALL_PAGES,
100    SATI_SEQUENCE_MODE_SELECT_MODE_PAGE_CACHING,
101    SATI_SEQUENCE_MODE_SELECT_MODE_POWER_CONDITION,
102    SATI_SEQUENCE_MODE_SELECT_MODE_INFORMATION_EXCEPT_CONTROL,
103 
104       //Log Sense Sequences
105    SATI_SEQUENCE_LOG_SENSE_SELF_TEST_LOG_PAGE,
106    SATI_SEQUENCE_LOG_SENSE_EXTENDED_SELF_TEST_LOG_PAGE,
107    SATI_SEQUENCE_LOG_SENSE_SUPPORTED_LOG_PAGE,
108    SATI_SEQUENCE_LOG_SENSE_INFO_EXCEPTION_LOG_PAGE,
109 
110    // SCSI Block Command (SBC) sequences.
111 
112    SATI_SEQUENCE_READ_6,
113    SATI_SEQUENCE_READ_10,
114    SATI_SEQUENCE_READ_12,
115    SATI_SEQUENCE_READ_16,
116 
117    SATI_SEQUENCE_READ_CAPACITY_10,
118    SATI_SEQUENCE_READ_CAPACITY_16,
119 
120    SATI_SEQUENCE_SYNCHRONIZE_CACHE,
121 
122    SATI_SEQUENCE_VERIFY_10,
123    SATI_SEQUENCE_VERIFY_12,
124    SATI_SEQUENCE_VERIFY_16,
125 
126    SATI_SEQUENCE_WRITE_6,
127    SATI_SEQUENCE_WRITE_10,
128    SATI_SEQUENCE_WRITE_12,
129    SATI_SEQUENCE_WRITE_16,
130 
131    SATI_SEQUENCE_WRITE_AND_VERIFY,
132 
133    SATI_SEQUENCE_START_STOP_UNIT,
134 
135    SATI_SEQUENCE_REASSIGN_BLOCKS,
136 
137    // SCSI Task Requests sequences
138 
139    SATI_SEQUENCE_LUN_RESET,
140    SATI_SEQUENCE_ABORT_TASK_SET,
141 
142    SATI_SEQUENCE_REQUEST_SENSE_SMART_RETURN_STATUS,
143    SATI_SEQUENCE_REQUEST_SENSE_CHECK_POWER_MODE,
144 
145    SATI_SEQUENCE_WRITE_LONG,
146 
147    SATI_SEQUENCE_UNMAP,
148 
149    SATI_SEQUENCE_ATA_PASSTHROUGH_12,
150    SATI_SEQUENCE_ATA_PASSTHROUGH_16,
151 
152    SATI_SEQUENCE_READ_BUFFER,
153    SATI_SEQUENCE_WRITE_BUFFER,
154    SATI_SEQUENCE_WRITE_BUFFER_MICROCODE
155 
156 } SATI_TRANSLATOR_SEQUENCE_TYPE;
157 
158 #define SATI_SEQUENCE_TYPE_READ_MIN SATI_SEQUENCE_READ_6
159 #define SATI_SEQUENCE_TYPE_READ_MAX SATI_SEQUENCE_READ_16
160 
161 /**
162  * @name SATI_SEQUENCE_STATES
163  *
164  * These constants depict the various state values associated with a
165  * translation sequence.
166  */
167 /*@{*/
168 #define SATI_SEQUENCE_STATE_INITIAL            0
169 #define SATI_SEQUENCE_STATE_TRANSLATE_DATA     1
170 #define SATI_SEQUENCE_STATE_AWAIT_RESPONSE     2
171 #define SATI_SEQUENCE_STATE_FINAL              3
172 #define SATI_SEQUENCE_STATE_INCOMPLETE         4
173 #define SATI_SEQUENCE_STATE_READ_ERROR         5
174 /*@}*/
175 
176 /**
177  * @name SATI_DATA_DIRECTIONS
178  *
179  * These constants depict the various types of data directions for a
180  * translation sequence.  Data can flow in/out (read/write) or no data at
181  * all.
182  */
183 /*@{*/
184 #define SATI_DATA_DIRECTION_NONE 0
185 #define SATI_DATA_DIRECTION_IN   1
186 #define SATI_DATA_DIRECTION_OUT  2
187 /*@}*/
188 
189 /**
190  * @struct SATI_MODE_SELECT_PROCESSING_STATE
191  *
192  * @brief This structure contains all of the current processing states
193  *        for processing mode select 6 and 10 commands' parameter fields.
194  */
195 typedef  struct SATI_MODE_SELECT_PROCESSING_STATE
196 {
197    U8       * mode_pages;
198    U32      mode_page_offset;
199    U32      mode_pages_size;
200    U32      size_of_data_processed;
201    U32      total_ata_command_sent;
202    U32      ata_command_sent_for_cmp; // cmp: current mode page
203    BOOL     current_mode_page_processed;
204 
205 } SATI_MODE_SELECT_PROCESSING_STATE_T;
206 
207 
208 enum SATI_REASSIGN_BLOCKS_ATA_COMMAND_STATUS
209 {
210    SATI_REASSIGN_BLOCKS_READY_TO_SEND,
211    SATI_REASSIGN_BLOCKS_COMMAND_FAIL,
212    SATI_REASSIGN_BLOCKS_COMMAND_SUCCESS,
213 };
214 
215 /**
216  * @struct SATI_REASSIGN_BLOCKS_PROCESSING_STATE
217  *
218  * @brief This structure contains all of the current processing states
219  *        for processing reassign block command's parameter fields.
220  */
221 typedef struct SATI_REASSIGN_BLOCKS_PROCESSING_STATE
222 {
223    U32      lba_offset;
224    U32      block_lists_size;
225    U8       lba_size;
226    U32      size_of_data_processed;
227    U32      ata_command_sent_for_current_lba;
228    BOOL     current_lba_processed;
229    enum     SATI_REASSIGN_BLOCKS_ATA_COMMAND_STATUS  ata_command_status;
230 
231 }SATI_REASSIGN_BLOCKS_PROCESSING_STATE_T;
232 
233 #define SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH 12
234 
235 /**
236  * @struct SATI_ATAPI_DATA
237  *
238  * @brief The SATI_ATAPI_DATA structure is for sati atapi IO specific data.
239  */
240 typedef struct SATI_ATAPI_DATA
241 {
242   U8 request_sense_cdb[SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH];
243 } SATI_ATAPI_DATA_T;
244 
245 
246 enum SATI_UNMAP_ATA_COMMAND_STATUS
247 {
248    SATI_UNMAP_READY_TO_SEND,
249    SATI_UNMAP_COMMAND_FAIL,
250    SATI_UNMAP_COMMAND_SUCCESS,
251 };
252 
253 /**
254  * @struct SATI_UNMAP_PROCESSING_STATE
255  *
256  * @brief This structure contains all of the current processing states
257  *        for processing unmap command data translation.
258  */
259 typedef struct SATI_UNMAP_PROCESSING_STATE
260 {
261    U32      max_unmap_block_descriptors;
262    U32      current_unmap_block_descriptor_index;
263    U32      current_lba_count;
264    SATI_LBA current_lba;
265    SATI_LBA next_lba;
266    U32      max_lba_range_entries;
267    void *   current_dsm_descriptor;
268    void *   virtual_unmap_buffer;
269    U32      physical_unmap_buffer_low;
270    U32      physical_unmap_buffer_high;
271    void *   unmap_buffer_sgl_pair;
272 } SATI_UNMAP_PROCESSING_STATE_T;
273 
274 /**
275  * @struct SATI_TRANSLATOR_SEQUENCE
276  *
277  * @brief This structure contains all of the translation information
278  *        associated with a particular request.
279  */
280 typedef struct SATI_TRANSLATOR_SEQUENCE
281 {
282    /**
283     * This field contains the sequence type determined by the SATI.
284     */
285    U8 type;
286 
287    /**
288     * This field indicates the current state for the sequence.
289     */
290    U8 state;
291 
292    /**
293     * This field indicates the data direction (none, read, or write) for
294     * the translated request.
295     */
296    U8 data_direction;
297 
298    /**
299     * This field contains the SATA/ATA protocol to be utilized during
300     * the IO transfer.
301     */
302    U8 protocol;
303 
304    /**
305     * This field is utilized for sequences requiring data translation.
306     * It specifies the amount of data requested by the caller from the
307     * operation.  It's necessary, because at times the user requests less
308     * data than is available.  Thus, we need to avoid overrunning the
309     * buffer.
310     */
311    U32 allocation_length;
312 
313    /**
314     * This field specifies the amount of data that will actually be
315     * transferred across the wire for this ATA request.
316     */
317    U32 ata_transfer_length;
318 
319    /**
320    * This field specifies the amount of data bytes that have been
321    * set in a translation sequence. It will be incremented every time
322    * a data byte has been set by a sati translation.
323    */
324    U16 number_data_bytes_set;
325 
326    /**
327    * This field indicates whether or not the sense response has been set
328    * by the translation sequence.
329    */
330    BOOL is_sense_response_set;
331 
332    /**
333     * This field indicates whether or not the translation requires
334     * response translation.
335     */
336    BOOL is_translate_response_required;
337 
338    /**
339     * This field specifies the remote device context for which this
340     * translator sequence is destined.
341     */
342    SATI_DEVICE_T * device;
343 
344    /**
345     * This field is utilized to provide the translator with memory space
346     * required for translations that utilize multiple requests.
347     */
348    union {
349       U32 translated_command;
350       U32 move_sector_count;
351       U32 scratch;
352       SATI_REASSIGN_BLOCKS_PROCESSING_STATE_T   reassign_blocks_process_state;
353       SATI_MODE_SELECT_PROCESSING_STATE_T       process_state;
354       SATI_UNMAP_PROCESSING_STATE_T             unmap_process_state;
355       SATI_ATAPI_DATA_T                         sati_atapi_data;
356    } command_specific_data;
357 
358 } SATI_TRANSLATOR_SEQUENCE_T;
359 
360 
361 
362 #endif // _SATI_TRANSLATOR_SEQUENCE_H_
363 
364