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c21e0bbf MO |
1 | /* |
2 | * CXL Flash Device Driver | |
3 | * | |
4 | * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation | |
5 | * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation | |
6 | * | |
7 | * Copyright (C) 2015 IBM Corporation | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version | |
12 | * 2 of the License, or (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #ifndef _SISLITE_H | |
16 | #define _SISLITE_H | |
17 | ||
18 | #include <linux/types.h> | |
19 | ||
20 | typedef u16 ctx_hndl_t; | |
21 | typedef u32 res_hndl_t; | |
22 | ||
23 | #define SIZE_4K 4096 | |
24 | #define SIZE_64K 65536 | |
25 | ||
26 | /* | |
27 | * IOARCB: 64 bytes, min 16 byte alignment required, host native endianness | |
28 | * except for SCSI CDB which remains big endian per SCSI standards. | |
29 | */ | |
30 | struct sisl_ioarcb { | |
31 | u16 ctx_id; /* ctx_hndl_t */ | |
32 | u16 req_flags; | |
33 | #define SISL_REQ_FLAGS_RES_HNDL 0x8000U /* bit 0 (MSB) */ | |
34 | #define SISL_REQ_FLAGS_PORT_LUN_ID 0x0000U | |
35 | ||
36 | #define SISL_REQ_FLAGS_SUP_UNDERRUN 0x4000U /* bit 1 */ | |
37 | ||
38 | #define SISL_REQ_FLAGS_TIMEOUT_SECS 0x0000U /* bits 8,9 */ | |
39 | #define SISL_REQ_FLAGS_TIMEOUT_MSECS 0x0040U | |
40 | #define SISL_REQ_FLAGS_TIMEOUT_USECS 0x0080U | |
41 | #define SISL_REQ_FLAGS_TIMEOUT_CYCLES 0x00C0U | |
42 | ||
43 | #define SISL_REQ_FLAGS_TMF_CMD 0x0004u /* bit 13 */ | |
44 | ||
45 | #define SISL_REQ_FLAGS_AFU_CMD 0x0002U /* bit 14 */ | |
46 | ||
47 | #define SISL_REQ_FLAGS_HOST_WRITE 0x0001U /* bit 15 (LSB) */ | |
48 | #define SISL_REQ_FLAGS_HOST_READ 0x0000U | |
49 | ||
50 | union { | |
51 | u32 res_hndl; /* res_hndl_t */ | |
52 | u32 port_sel; /* this is a selection mask: | |
53 | * 0x1 -> port#0 can be selected, | |
54 | * 0x2 -> port#1 can be selected. | |
55 | * Can be bitwise ORed. | |
56 | */ | |
57 | }; | |
58 | u64 lun_id; | |
59 | u32 data_len; /* 4K for read/write */ | |
60 | u32 ioadl_len; | |
61 | union { | |
62 | u64 data_ea; /* min 16 byte aligned */ | |
63 | u64 ioadl_ea; | |
64 | }; | |
65 | u8 msi; /* LISN to send on RRQ write */ | |
66 | #define SISL_MSI_CXL_PFAULT 0 /* reserved for CXL page faults */ | |
67 | #define SISL_MSI_SYNC_ERROR 1 /* recommended for AFU sync error */ | |
68 | #define SISL_MSI_RRQ_UPDATED 2 /* recommended for IO completion */ | |
69 | #define SISL_MSI_ASYNC_ERROR 3 /* master only - for AFU async error */ | |
70 | ||
71 | u8 rrq; /* 0 for a single RRQ */ | |
72 | u16 timeout; /* in units specified by req_flags */ | |
73 | u32 rsvd1; | |
74 | u8 cdb[16]; /* must be in big endian */ | |
75 | struct scsi_cmnd *scp; | |
76 | } __packed; | |
77 | ||
78 | struct sisl_rc { | |
79 | u8 flags; | |
80 | #define SISL_RC_FLAGS_SENSE_VALID 0x80U | |
81 | #define SISL_RC_FLAGS_FCP_RSP_CODE_VALID 0x40U | |
82 | #define SISL_RC_FLAGS_OVERRUN 0x20U | |
83 | #define SISL_RC_FLAGS_UNDERRUN 0x10U | |
84 | ||
85 | u8 afu_rc; | |
86 | #define SISL_AFU_RC_RHT_INVALID 0x01U /* user error */ | |
87 | #define SISL_AFU_RC_RHT_UNALIGNED 0x02U /* should never happen */ | |
88 | #define SISL_AFU_RC_RHT_OUT_OF_BOUNDS 0x03u /* user error */ | |
89 | #define SISL_AFU_RC_RHT_DMA_ERR 0x04u /* see afu_extra | |
90 | may retry if afu_retry is off | |
91 | possible on master exit | |
92 | */ | |
93 | #define SISL_AFU_RC_RHT_RW_PERM 0x05u /* no RW perms, user error */ | |
94 | #define SISL_AFU_RC_LXT_UNALIGNED 0x12U /* should never happen */ | |
95 | #define SISL_AFU_RC_LXT_OUT_OF_BOUNDS 0x13u /* user error */ | |
96 | #define SISL_AFU_RC_LXT_DMA_ERR 0x14u /* see afu_extra | |
97 | may retry if afu_retry is off | |
98 | possible on master exit | |
99 | */ | |
100 | #define SISL_AFU_RC_LXT_RW_PERM 0x15u /* no RW perms, user error */ | |
101 | ||
102 | #define SISL_AFU_RC_NOT_XLATE_HOST 0x1au /* possible if master exited */ | |
103 | ||
104 | /* NO_CHANNELS means the FC ports selected by dest_port in | |
105 | * IOARCB or in the LXT entry are down when the AFU tried to select | |
106 | * a FC port. If the port went down on an active IO, it will set | |
107 | * fc_rc to =0x54(NOLOGI) or 0x57(LINKDOWN) instead. | |
108 | */ | |
109 | #define SISL_AFU_RC_NO_CHANNELS 0x20U /* see afu_extra, may retry */ | |
110 | #define SISL_AFU_RC_CAP_VIOLATION 0x21U /* either user error or | |
111 | afu reset/master restart | |
112 | */ | |
113 | #define SISL_AFU_RC_OUT_OF_DATA_BUFS 0x30U /* always retry */ | |
114 | #define SISL_AFU_RC_DATA_DMA_ERR 0x31U /* see afu_extra | |
115 | may retry if afu_retry is off | |
116 | */ | |
117 | ||
118 | u8 scsi_rc; /* SCSI status byte, retry as appropriate */ | |
119 | #define SISL_SCSI_RC_CHECK 0x02U | |
120 | #define SISL_SCSI_RC_BUSY 0x08u | |
121 | ||
122 | u8 fc_rc; /* retry */ | |
123 | /* | |
124 | * We should only see fc_rc=0x57 (LINKDOWN) or 0x54(NOLOGI) for | |
125 | * commands that are in flight when a link goes down or is logged out. | |
126 | * If the link is down or logged out before AFU selects the port, either | |
127 | * it will choose the other port or we will get afu_rc=0x20 (no_channel) | |
128 | * if there is no valid port to use. | |
129 | * | |
130 | * ABORTPEND/ABORTOK/ABORTFAIL/TGTABORT can be retried, typically these | |
131 | * would happen if a frame is dropped and something times out. | |
132 | * NOLOGI or LINKDOWN can be retried if the other port is up. | |
133 | * RESIDERR can be retried as well. | |
134 | * | |
135 | * ABORTFAIL might indicate that lots of frames are getting CRC errors. | |
136 | * So it maybe retried once and reset the link if it happens again. | |
137 | * The link can also be reset on the CRC error threshold interrupt. | |
138 | */ | |
139 | #define SISL_FC_RC_ABORTPEND 0x52 /* exchange timeout or abort request */ | |
140 | #define SISL_FC_RC_WRABORTPEND 0x53 /* due to write XFER_RDY invalid */ | |
141 | #define SISL_FC_RC_NOLOGI 0x54 /* port not logged in, in-flight cmds */ | |
142 | #define SISL_FC_RC_NOEXP 0x55 /* FC protocol error or HW bug */ | |
143 | #define SISL_FC_RC_INUSE 0x56 /* tag already in use, HW bug */ | |
144 | #define SISL_FC_RC_LINKDOWN 0x57 /* link down, in-flight cmds */ | |
145 | #define SISL_FC_RC_ABORTOK 0x58 /* pending abort completed w/success */ | |
146 | #define SISL_FC_RC_ABORTFAIL 0x59 /* pending abort completed w/fail */ | |
147 | #define SISL_FC_RC_RESID 0x5A /* ioasa underrun/overrun flags set */ | |
148 | #define SISL_FC_RC_RESIDERR 0x5B /* actual data len does not match SCSI | |
149 | reported len, possbly due to dropped | |
150 | frames */ | |
151 | #define SISL_FC_RC_TGTABORT 0x5C /* command aborted by target */ | |
152 | }; | |
153 | ||
154 | #define SISL_SENSE_DATA_LEN 20 /* Sense data length */ | |
155 | ||
156 | /* | |
157 | * IOASA: 64 bytes & must follow IOARCB, min 16 byte alignment required, | |
158 | * host native endianness | |
159 | */ | |
160 | struct sisl_ioasa { | |
161 | union { | |
162 | struct sisl_rc rc; | |
163 | u32 ioasc; | |
164 | #define SISL_IOASC_GOOD_COMPLETION 0x00000000U | |
165 | }; | |
166 | u32 resid; | |
167 | u8 port; | |
168 | u8 afu_extra; | |
169 | /* when afu_rc=0x04, 0x14, 0x31 (_xxx_DMA_ERR): | |
170 | * afu_exta contains PSL response code. Useful codes are: | |
171 | */ | |
172 | #define SISL_AFU_DMA_ERR_PAGE_IN 0x0A /* AFU_retry_on_pagein Action | |
173 | * Enabled N/A | |
174 | * Disabled retry | |
175 | */ | |
176 | #define SISL_AFU_DMA_ERR_INVALID_EA 0x0B /* this is a hard error | |
177 | * afu_rc Implies | |
178 | * 0x04, 0x14 master exit. | |
179 | * 0x31 user error. | |
180 | */ | |
181 | /* when afu rc=0x20 (no channels): | |
182 | * afu_extra bits [4:5]: available portmask, [6:7]: requested portmask. | |
183 | */ | |
184 | #define SISL_AFU_NO_CLANNELS_AMASK(afu_extra) (((afu_extra) & 0x0C) >> 2) | |
185 | #define SISL_AFU_NO_CLANNELS_RMASK(afu_extra) ((afu_extra) & 0x03) | |
186 | ||
187 | u8 scsi_extra; | |
188 | u8 fc_extra; | |
189 | u8 sense_data[SISL_SENSE_DATA_LEN]; | |
190 | ||
191 | /* These fields are defined by the SISlite architecture for the | |
192 | * host to use as they see fit for their implementation. | |
193 | */ | |
194 | union { | |
195 | u64 host_use[4]; | |
196 | u8 host_use_b[32]; | |
197 | }; | |
198 | } __packed; | |
199 | ||
200 | #define SISL_RESP_HANDLE_T_BIT 0x1ULL /* Toggle bit */ | |
201 | ||
202 | /* MMIO space is required to support only 64-bit access */ | |
203 | ||
204 | /* | |
205 | * This AFU has two mechanisms to deal with endian-ness. | |
206 | * One is a global configuration (in the afu_config) register | |
207 | * below that specifies the endian-ness of the host. | |
208 | * The other is a per context (i.e. application) specification | |
209 | * controlled by the endian_ctrl field here. Since the master | |
210 | * context is one such application the master context's | |
211 | * endian-ness is set to be the same as the host. | |
212 | * | |
213 | * As per the SISlite spec, the MMIO registers are always | |
214 | * big endian. | |
215 | */ | |
216 | #define SISL_ENDIAN_CTRL_BE 0x8000000000000080ULL | |
217 | #define SISL_ENDIAN_CTRL_LE 0x0000000000000000ULL | |
218 | ||
219 | #ifdef __BIG_ENDIAN | |
220 | #define SISL_ENDIAN_CTRL SISL_ENDIAN_CTRL_BE | |
221 | #else | |
222 | #define SISL_ENDIAN_CTRL SISL_ENDIAN_CTRL_LE | |
223 | #endif | |
224 | ||
225 | /* per context host transport MMIO */ | |
226 | struct sisl_host_map { | |
227 | __be64 endian_ctrl; /* Per context Endian Control. The AFU will | |
228 | * operate on whatever the context is of the | |
229 | * host application. | |
230 | */ | |
231 | ||
232 | __be64 intr_status; /* this sends LISN# programmed in ctx_ctrl. | |
233 | * Only recovery in a PERM_ERR is a context | |
234 | * exit since there is no way to tell which | |
235 | * command caused the error. | |
236 | */ | |
237 | #define SISL_ISTATUS_PERM_ERR_CMDROOM 0x0010ULL /* b59, user error */ | |
238 | #define SISL_ISTATUS_PERM_ERR_RCB_READ 0x0008ULL /* b60, user error */ | |
239 | #define SISL_ISTATUS_PERM_ERR_SA_WRITE 0x0004ULL /* b61, user error */ | |
240 | #define SISL_ISTATUS_PERM_ERR_RRQ_WRITE 0x0002ULL /* b62, user error */ | |
241 | /* Page in wait accessing RCB/IOASA/RRQ is reported in b63. | |
242 | * Same error in data/LXT/RHT access is reported via IOASA. | |
243 | */ | |
244 | #define SISL_ISTATUS_TEMP_ERR_PAGEIN 0x0001ULL /* b63, can be generated | |
245 | * only when AFU auto | |
246 | * retry is disabled. | |
247 | * If user can determine | |
248 | * the command that | |
249 | * caused the error, it | |
250 | * can be retried. | |
251 | */ | |
252 | #define SISL_ISTATUS_UNMASK (0x001FULL) /* 1 means unmasked */ | |
253 | #define SISL_ISTATUS_MASK ~(SISL_ISTATUS_UNMASK) /* 1 means masked */ | |
254 | ||
255 | __be64 intr_clear; | |
256 | __be64 intr_mask; | |
257 | __be64 ioarrin; /* only write what cmd_room permits */ | |
258 | __be64 rrq_start; /* start & end are both inclusive */ | |
259 | __be64 rrq_end; /* write sequence: start followed by end */ | |
260 | __be64 cmd_room; | |
261 | __be64 ctx_ctrl; /* least signiifcant byte or b56:63 is LISN# */ | |
262 | __be64 mbox_w; /* restricted use */ | |
263 | }; | |
264 | ||
265 | /* per context provisioning & control MMIO */ | |
266 | struct sisl_ctrl_map { | |
267 | __be64 rht_start; | |
268 | __be64 rht_cnt_id; | |
269 | /* both cnt & ctx_id args must be ULL */ | |
270 | #define SISL_RHT_CNT_ID(cnt, ctx_id) (((cnt) << 48) | ((ctx_id) << 32)) | |
271 | ||
272 | __be64 ctx_cap; /* afu_rc below is when the capability is violated */ | |
273 | #define SISL_CTX_CAP_PROXY_ISSUE 0x8000000000000000ULL /* afu_rc 0x21 */ | |
274 | #define SISL_CTX_CAP_REAL_MODE 0x4000000000000000ULL /* afu_rc 0x21 */ | |
275 | #define SISL_CTX_CAP_HOST_XLATE 0x2000000000000000ULL /* afu_rc 0x1a */ | |
276 | #define SISL_CTX_CAP_PROXY_TARGET 0x1000000000000000ULL /* afu_rc 0x21 */ | |
277 | #define SISL_CTX_CAP_AFU_CMD 0x0000000000000008ULL /* afu_rc 0x21 */ | |
278 | #define SISL_CTX_CAP_GSCSI_CMD 0x0000000000000004ULL /* afu_rc 0x21 */ | |
279 | #define SISL_CTX_CAP_WRITE_CMD 0x0000000000000002ULL /* afu_rc 0x21 */ | |
280 | #define SISL_CTX_CAP_READ_CMD 0x0000000000000001ULL /* afu_rc 0x21 */ | |
281 | __be64 mbox_r; | |
282 | }; | |
283 | ||
284 | /* single copy global regs */ | |
285 | struct sisl_global_regs { | |
286 | __be64 aintr_status; | |
287 | /* In cxlflash, each FC port/link gets a byte of status */ | |
288 | #define SISL_ASTATUS_FC0_OTHER 0x8000ULL /* b48, other err, | |
289 | FC_ERRCAP[31:20] */ | |
290 | #define SISL_ASTATUS_FC0_LOGO 0x4000ULL /* b49, target sent FLOGI/PLOGI/LOGO | |
291 | while logged in */ | |
292 | #define SISL_ASTATUS_FC0_CRC_T 0x2000ULL /* b50, CRC threshold exceeded */ | |
293 | #define SISL_ASTATUS_FC0_LOGI_R 0x1000ULL /* b51, login state mechine timed out | |
294 | and retrying */ | |
295 | #define SISL_ASTATUS_FC0_LOGI_F 0x0800ULL /* b52, login failed, | |
296 | FC_ERROR[19:0] */ | |
297 | #define SISL_ASTATUS_FC0_LOGI_S 0x0400ULL /* b53, login succeeded */ | |
298 | #define SISL_ASTATUS_FC0_LINK_DN 0x0200ULL /* b54, link online to offline */ | |
299 | #define SISL_ASTATUS_FC0_LINK_UP 0x0100ULL /* b55, link offline to online */ | |
300 | ||
301 | #define SISL_ASTATUS_FC1_OTHER 0x0080ULL /* b56 */ | |
302 | #define SISL_ASTATUS_FC1_LOGO 0x0040ULL /* b57 */ | |
303 | #define SISL_ASTATUS_FC1_CRC_T 0x0020ULL /* b58 */ | |
304 | #define SISL_ASTATUS_FC1_LOGI_R 0x0010ULL /* b59 */ | |
305 | #define SISL_ASTATUS_FC1_LOGI_F 0x0008ULL /* b60 */ | |
306 | #define SISL_ASTATUS_FC1_LOGI_S 0x0004ULL /* b61 */ | |
307 | #define SISL_ASTATUS_FC1_LINK_DN 0x0002ULL /* b62 */ | |
308 | #define SISL_ASTATUS_FC1_LINK_UP 0x0001ULL /* b63 */ | |
309 | ||
310 | #define SISL_FC_INTERNAL_UNMASK 0x0000000300000000ULL /* 1 means unmasked */ | |
311 | #define SISL_FC_INTERNAL_MASK ~(SISL_FC_INTERNAL_UNMASK) | |
312 | #define SISL_FC_INTERNAL_SHIFT 32 | |
313 | ||
314 | #define SISL_ASTATUS_UNMASK 0xFFFFULL /* 1 means unmasked */ | |
315 | #define SISL_ASTATUS_MASK ~(SISL_ASTATUS_UNMASK) /* 1 means masked */ | |
316 | ||
317 | __be64 aintr_clear; | |
318 | __be64 aintr_mask; | |
319 | __be64 afu_ctrl; | |
320 | __be64 afu_hb; | |
321 | __be64 afu_scratch_pad; | |
322 | __be64 afu_port_sel; | |
323 | #define SISL_AFUCONF_AR_IOARCB 0x4000ULL | |
324 | #define SISL_AFUCONF_AR_LXT 0x2000ULL | |
325 | #define SISL_AFUCONF_AR_RHT 0x1000ULL | |
326 | #define SISL_AFUCONF_AR_DATA 0x0800ULL | |
327 | #define SISL_AFUCONF_AR_RSRC 0x0400ULL | |
328 | #define SISL_AFUCONF_AR_IOASA 0x0200ULL | |
329 | #define SISL_AFUCONF_AR_RRQ 0x0100ULL | |
330 | /* Aggregate all Auto Retry Bits */ | |
331 | #define SISL_AFUCONF_AR_ALL (SISL_AFUCONF_AR_IOARCB|SISL_AFUCONF_AR_LXT| \ | |
332 | SISL_AFUCONF_AR_RHT|SISL_AFUCONF_AR_DATA| \ | |
333 | SISL_AFUCONF_AR_RSRC|SISL_AFUCONF_AR_IOASA| \ | |
334 | SISL_AFUCONF_AR_RRQ) | |
335 | #ifdef __BIG_ENDIAN | |
336 | #define SISL_AFUCONF_ENDIAN 0x0000ULL | |
337 | #else | |
338 | #define SISL_AFUCONF_ENDIAN 0x0020ULL | |
339 | #endif | |
340 | #define SISL_AFUCONF_MBOX_CLR_READ 0x0010ULL | |
341 | __be64 afu_config; | |
342 | __be64 rsvd[0xf8]; | |
343 | __be64 afu_version; | |
344 | __be64 interface_version; | |
345 | }; | |
346 | ||
347 | #define CXLFLASH_NUM_FC_PORTS 2 | |
348 | #define CXLFLASH_MAX_CONTEXT 512 /* how many contexts per afu */ | |
349 | #define CXLFLASH_NUM_VLUNS 512 | |
350 | ||
351 | struct sisl_global_map { | |
352 | union { | |
353 | struct sisl_global_regs regs; | |
354 | char page0[SIZE_4K]; /* page 0 */ | |
355 | }; | |
356 | ||
357 | char page1[SIZE_4K]; /* page 1 */ | |
358 | ||
359 | /* pages 2 & 3 */ | |
360 | __be64 fc_regs[CXLFLASH_NUM_FC_PORTS][CXLFLASH_NUM_VLUNS]; | |
361 | ||
362 | /* pages 4 & 5 (lun tbl) */ | |
363 | __be64 fc_port[CXLFLASH_NUM_FC_PORTS][CXLFLASH_NUM_VLUNS]; | |
364 | ||
365 | }; | |
366 | ||
367 | /* | |
368 | * CXL Flash Memory Map | |
369 | * | |
370 | * +-------------------------------+ | |
371 | * | 512 * 64 KB User MMIO | | |
372 | * | (per context) | | |
373 | * | User Accessible | | |
374 | * +-------------------------------+ | |
375 | * | 512 * 128 B per context | | |
376 | * | Provisioning and Control | | |
377 | * | Trusted Process accessible | | |
378 | * +-------------------------------+ | |
379 | * | 64 KB Global | | |
380 | * | Trusted Process accessible | | |
381 | * +-------------------------------+ | |
382 | */ | |
383 | struct cxlflash_afu_map { | |
384 | union { | |
385 | struct sisl_host_map host; | |
386 | char harea[SIZE_64K]; /* 64KB each */ | |
387 | } hosts[CXLFLASH_MAX_CONTEXT]; | |
388 | ||
389 | union { | |
390 | struct sisl_ctrl_map ctrl; | |
391 | char carea[cache_line_size()]; /* 128B each */ | |
392 | } ctrls[CXLFLASH_MAX_CONTEXT]; | |
393 | ||
394 | union { | |
395 | struct sisl_global_map global; | |
396 | char garea[SIZE_64K]; /* 64KB single block */ | |
397 | }; | |
398 | }; | |
399 | ||
400 | /* LBA translation control blocks */ | |
401 | ||
402 | struct sisl_lxt_entry { | |
403 | u64 rlba_base; /* bits 0:47 is base | |
404 | * b48:55 is lun index | |
405 | * b58:59 is write & read perms | |
406 | * (if no perm, afu_rc=0x15) | |
407 | * b60:63 is port_sel mask | |
408 | */ | |
409 | ||
410 | }; | |
411 | ||
65be2c79 MO |
412 | /* |
413 | * RHT - Resource Handle Table | |
414 | * Per the SISlite spec, RHT entries are to be 16-byte aligned | |
415 | */ | |
c21e0bbf MO |
416 | struct sisl_rht_entry { |
417 | struct sisl_lxt_entry *lxt_start; | |
418 | u32 lxt_cnt; | |
419 | u16 rsvd; | |
420 | u8 fp; /* format & perm nibbles. | |
421 | * (if no perm, afu_rc=0x05) | |
422 | */ | |
423 | u8 nmask; | |
424 | } __packed __aligned(16); | |
425 | ||
426 | struct sisl_rht_entry_f1 { | |
427 | u64 lun_id; | |
428 | union { | |
429 | struct { | |
430 | u8 valid; | |
431 | u8 rsvd[5]; | |
432 | u8 fp; | |
433 | u8 port_sel; | |
434 | }; | |
435 | ||
436 | u64 dw; | |
437 | }; | |
438 | } __packed __aligned(16); | |
439 | ||
440 | /* make the fp byte */ | |
441 | #define SISL_RHT_FP(fmt, perm) (((fmt) << 4) | (perm)) | |
442 | ||
443 | /* make the fp byte for a clone from a source fp and clone flags | |
444 | * flags must be only 2 LSB bits. | |
445 | */ | |
446 | #define SISL_RHT_FP_CLONE(src_fp, cln_flags) ((src_fp) & (0xFC | (cln_flags))) | |
447 | ||
448 | #define RHT_PERM_READ 0x01U | |
449 | #define RHT_PERM_WRITE 0x02U | |
450 | #define RHT_PERM_RW (RHT_PERM_READ | RHT_PERM_WRITE) | |
451 | ||
452 | /* extract the perm bits from a fp */ | |
453 | #define SISL_RHT_PERM(fp) ((fp) & RHT_PERM_RW) | |
454 | ||
455 | #define PORT0 0x01U | |
456 | #define PORT1 0x02U | |
457 | #define BOTH_PORTS (PORT0 | PORT1) | |
458 | ||
459 | /* AFU Sync Mode byte */ | |
460 | #define AFU_LW_SYNC 0x0U | |
461 | #define AFU_HW_SYNC 0x1U | |
462 | #define AFU_GSYNC 0x2U | |
463 | ||
464 | /* Special Task Management Function CDB */ | |
465 | #define TMF_LUN_RESET 0x1U | |
466 | #define TMF_CLEAR_ACA 0x2U | |
467 | ||
468 | #endif /* _SISLITE_H */ |