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1da177e4 LT |
1 | #ifndef _CIO_QDIO_H |
2 | #define _CIO_QDIO_H | |
3 | ||
0b642ede PO |
4 | #include <asm/page.h> |
5 | ||
8129ee16 | 6 | #define VERSION_CIO_QDIO_H "$Revision: 1.37 $" |
1da177e4 LT |
7 | |
8 | #ifdef CONFIG_QDIO_DEBUG | |
9 | #define QDIO_VERBOSE_LEVEL 9 | |
10 | #else /* CONFIG_QDIO_DEBUG */ | |
11 | #define QDIO_VERBOSE_LEVEL 5 | |
12 | #endif /* CONFIG_QDIO_DEBUG */ | |
1da177e4 LT |
13 | #define QDIO_USE_PROCESSING_STATE |
14 | ||
15 | #ifdef CONFIG_QDIO_PERF_STATS | |
16 | #define QDIO_PERFORMANCE_STATS | |
17 | #endif /* CONFIG_QDIO_PERF_STATS */ | |
18 | ||
19 | #define QDIO_MINIMAL_BH_RELIEF_TIME 16 | |
20 | #define QDIO_TIMER_POLL_VALUE 1 | |
21 | #define IQDIO_TIMER_POLL_VALUE 1 | |
22 | ||
23 | /* | |
24 | * unfortunately this can't be (QDIO_MAX_BUFFERS_PER_Q*4/3) or so -- as | |
25 | * we never know, whether we'll get initiative again, e.g. to give the | |
26 | * transmit skb's back to the stack, however the stack may be waiting for | |
27 | * them... therefore we define 4 as threshold to start polling (which | |
28 | * will stop as soon as the asynchronous queue catches up) | |
29 | * btw, this only applies to the asynchronous HiperSockets queue | |
30 | */ | |
31 | #define IQDIO_FILL_LEVEL_TO_POLL 4 | |
32 | ||
33 | #define TIQDIO_THININT_ISC 3 | |
34 | #define TIQDIO_DELAY_TARGET 0 | |
35 | #define QDIO_BUSY_BIT_PATIENCE 100 /* in microsecs */ | |
36 | #define QDIO_BUSY_BIT_GIVE_UP 10000000 /* 10 seconds */ | |
37 | #define IQDIO_GLOBAL_LAPS 2 /* GLOBAL_LAPS are not used as we */ | |
38 | #define IQDIO_GLOBAL_LAPS_INT 1 /* don't global summary */ | |
39 | #define IQDIO_LOCAL_LAPS 4 | |
40 | #define IQDIO_LOCAL_LAPS_INT 1 | |
41 | #define IQDIO_GLOBAL_SUMMARY_CC_MASK 2 | |
42 | /*#define IQDIO_IQDC_INT_PARM 0x1234*/ | |
43 | ||
44 | #define QDIO_Q_LAPS 5 | |
45 | ||
0b642ede | 46 | #define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY |
1da177e4 LT |
47 | |
48 | #define L2_CACHELINE_SIZE 256 | |
49 | #define INDICATORS_PER_CACHELINE (L2_CACHELINE_SIZE/sizeof(__u32)) | |
50 | ||
51 | #define QDIO_PERF "qdio_perf" | |
52 | ||
53 | /* must be a power of 2 */ | |
54 | /*#define QDIO_STATS_NUMBER 4 | |
55 | ||
56 | #define QDIO_STATS_CLASSES 2 | |
57 | #define QDIO_STATS_COUNT_NEEDED 2*/ | |
58 | ||
59 | #define QDIO_NO_USE_COUNT_TIMEOUT (1*HZ) /* wait for 1 sec on each q before | |
60 | exiting without having use_count | |
61 | of the queue to 0 */ | |
62 | ||
63 | #define QDIO_ESTABLISH_TIMEOUT (1*HZ) | |
64 | #define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10) | |
65 | #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ) | |
66 | #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ) | |
67 | ||
68 | enum qdio_irq_states { | |
69 | QDIO_IRQ_STATE_INACTIVE, | |
70 | QDIO_IRQ_STATE_ESTABLISHED, | |
71 | QDIO_IRQ_STATE_ACTIVE, | |
72 | QDIO_IRQ_STATE_STOPPED, | |
73 | QDIO_IRQ_STATE_CLEANUP, | |
74 | QDIO_IRQ_STATE_ERR, | |
75 | NR_QDIO_IRQ_STATES, | |
76 | }; | |
77 | ||
78 | /* used as intparm in do_IO: */ | |
79 | #define QDIO_DOING_SENSEID 0 | |
80 | #define QDIO_DOING_ESTABLISH 1 | |
81 | #define QDIO_DOING_ACTIVATE 2 | |
82 | #define QDIO_DOING_CLEANUP 3 | |
83 | ||
84 | /************************* DEBUG FACILITY STUFF *********************/ | |
85 | ||
86 | #define QDIO_DBF_HEX(ex,name,level,addr,len) \ | |
87 | do { \ | |
88 | if (ex) \ | |
89 | debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \ | |
90 | else \ | |
91 | debug_event(qdio_dbf_##name,level,(void*)(addr),len); \ | |
92 | } while (0) | |
93 | #define QDIO_DBF_TEXT(ex,name,level,text) \ | |
94 | do { \ | |
95 | if (ex) \ | |
96 | debug_text_exception(qdio_dbf_##name,level,text); \ | |
97 | else \ | |
98 | debug_text_event(qdio_dbf_##name,level,text); \ | |
99 | } while (0) | |
100 | ||
101 | ||
102 | #define QDIO_DBF_HEX0(ex,name,addr,len) QDIO_DBF_HEX(ex,name,0,addr,len) | |
103 | #define QDIO_DBF_HEX1(ex,name,addr,len) QDIO_DBF_HEX(ex,name,1,addr,len) | |
104 | #define QDIO_DBF_HEX2(ex,name,addr,len) QDIO_DBF_HEX(ex,name,2,addr,len) | |
105 | #ifdef CONFIG_QDIO_DEBUG | |
106 | #define QDIO_DBF_HEX3(ex,name,addr,len) QDIO_DBF_HEX(ex,name,3,addr,len) | |
107 | #define QDIO_DBF_HEX4(ex,name,addr,len) QDIO_DBF_HEX(ex,name,4,addr,len) | |
108 | #define QDIO_DBF_HEX5(ex,name,addr,len) QDIO_DBF_HEX(ex,name,5,addr,len) | |
109 | #define QDIO_DBF_HEX6(ex,name,addr,len) QDIO_DBF_HEX(ex,name,6,addr,len) | |
110 | #else /* CONFIG_QDIO_DEBUG */ | |
111 | #define QDIO_DBF_HEX3(ex,name,addr,len) do {} while (0) | |
112 | #define QDIO_DBF_HEX4(ex,name,addr,len) do {} while (0) | |
113 | #define QDIO_DBF_HEX5(ex,name,addr,len) do {} while (0) | |
114 | #define QDIO_DBF_HEX6(ex,name,addr,len) do {} while (0) | |
115 | #endif /* CONFIG_QDIO_DEBUG */ | |
116 | ||
117 | #define QDIO_DBF_TEXT0(ex,name,text) QDIO_DBF_TEXT(ex,name,0,text) | |
118 | #define QDIO_DBF_TEXT1(ex,name,text) QDIO_DBF_TEXT(ex,name,1,text) | |
119 | #define QDIO_DBF_TEXT2(ex,name,text) QDIO_DBF_TEXT(ex,name,2,text) | |
120 | #ifdef CONFIG_QDIO_DEBUG | |
121 | #define QDIO_DBF_TEXT3(ex,name,text) QDIO_DBF_TEXT(ex,name,3,text) | |
122 | #define QDIO_DBF_TEXT4(ex,name,text) QDIO_DBF_TEXT(ex,name,4,text) | |
123 | #define QDIO_DBF_TEXT5(ex,name,text) QDIO_DBF_TEXT(ex,name,5,text) | |
124 | #define QDIO_DBF_TEXT6(ex,name,text) QDIO_DBF_TEXT(ex,name,6,text) | |
125 | #else /* CONFIG_QDIO_DEBUG */ | |
126 | #define QDIO_DBF_TEXT3(ex,name,text) do {} while (0) | |
127 | #define QDIO_DBF_TEXT4(ex,name,text) do {} while (0) | |
128 | #define QDIO_DBF_TEXT5(ex,name,text) do {} while (0) | |
129 | #define QDIO_DBF_TEXT6(ex,name,text) do {} while (0) | |
130 | #endif /* CONFIG_QDIO_DEBUG */ | |
131 | ||
132 | #define QDIO_DBF_SETUP_NAME "qdio_setup" | |
133 | #define QDIO_DBF_SETUP_LEN 8 | |
66a464db | 134 | #define QDIO_DBF_SETUP_PAGES 4 |
1da177e4 LT |
135 | #define QDIO_DBF_SETUP_NR_AREAS 1 |
136 | #ifdef CONFIG_QDIO_DEBUG | |
137 | #define QDIO_DBF_SETUP_LEVEL 6 | |
138 | #else /* CONFIG_QDIO_DEBUG */ | |
139 | #define QDIO_DBF_SETUP_LEVEL 2 | |
140 | #endif /* CONFIG_QDIO_DEBUG */ | |
141 | ||
142 | #define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */ | |
143 | #define QDIO_DBF_SBAL_LEN 256 | |
66a464db | 144 | #define QDIO_DBF_SBAL_PAGES 4 |
1da177e4 LT |
145 | #define QDIO_DBF_SBAL_NR_AREAS 2 |
146 | #ifdef CONFIG_QDIO_DEBUG | |
147 | #define QDIO_DBF_SBAL_LEVEL 6 | |
148 | #else /* CONFIG_QDIO_DEBUG */ | |
149 | #define QDIO_DBF_SBAL_LEVEL 2 | |
150 | #endif /* CONFIG_QDIO_DEBUG */ | |
151 | ||
152 | #define QDIO_DBF_TRACE_NAME "qdio_trace" | |
153 | #define QDIO_DBF_TRACE_LEN 8 | |
154 | #define QDIO_DBF_TRACE_NR_AREAS 2 | |
155 | #ifdef CONFIG_QDIO_DEBUG | |
66a464db | 156 | #define QDIO_DBF_TRACE_PAGES 16 |
1da177e4 LT |
157 | #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */ |
158 | #else /* CONFIG_QDIO_DEBUG */ | |
66a464db | 159 | #define QDIO_DBF_TRACE_PAGES 4 |
1da177e4 LT |
160 | #define QDIO_DBF_TRACE_LEVEL 2 |
161 | #endif /* CONFIG_QDIO_DEBUG */ | |
162 | ||
163 | #define QDIO_DBF_SENSE_NAME "qdio_sense" | |
164 | #define QDIO_DBF_SENSE_LEN 64 | |
66a464db | 165 | #define QDIO_DBF_SENSE_PAGES 2 |
1da177e4 LT |
166 | #define QDIO_DBF_SENSE_NR_AREAS 1 |
167 | #ifdef CONFIG_QDIO_DEBUG | |
168 | #define QDIO_DBF_SENSE_LEVEL 6 | |
169 | #else /* CONFIG_QDIO_DEBUG */ | |
170 | #define QDIO_DBF_SENSE_LEVEL 2 | |
171 | #endif /* CONFIG_QDIO_DEBUG */ | |
172 | ||
173 | #ifdef CONFIG_QDIO_DEBUG | |
174 | #define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT | |
175 | ||
176 | #define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out" | |
177 | #define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q | |
66a464db | 178 | #define QDIO_DBF_SLSB_OUT_PAGES 256 |
1da177e4 LT |
179 | #define QDIO_DBF_SLSB_OUT_NR_AREAS 1 |
180 | #define QDIO_DBF_SLSB_OUT_LEVEL 6 | |
181 | ||
182 | #define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in" | |
183 | #define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q | |
66a464db | 184 | #define QDIO_DBF_SLSB_IN_PAGES 256 |
1da177e4 LT |
185 | #define QDIO_DBF_SLSB_IN_NR_AREAS 1 |
186 | #define QDIO_DBF_SLSB_IN_LEVEL 6 | |
187 | #endif /* CONFIG_QDIO_DEBUG */ | |
188 | ||
189 | #define QDIO_PRINTK_HEADER QDIO_NAME ": " | |
190 | ||
191 | #if QDIO_VERBOSE_LEVEL>8 | |
192 | #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x) | |
193 | #else | |
194 | #define QDIO_PRINT_STUPID(x...) | |
195 | #endif | |
196 | ||
197 | #if QDIO_VERBOSE_LEVEL>7 | |
198 | #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x) | |
199 | #else | |
200 | #define QDIO_PRINT_ALL(x...) | |
201 | #endif | |
202 | ||
203 | #if QDIO_VERBOSE_LEVEL>6 | |
204 | #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x) | |
205 | #else | |
206 | #define QDIO_PRINT_INFO(x...) | |
207 | #endif | |
208 | ||
209 | #if QDIO_VERBOSE_LEVEL>5 | |
210 | #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x) | |
211 | #else | |
212 | #define QDIO_PRINT_WARN(x...) | |
213 | #endif | |
214 | ||
215 | #if QDIO_VERBOSE_LEVEL>4 | |
216 | #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x) | |
217 | #else | |
218 | #define QDIO_PRINT_ERR(x...) | |
219 | #endif | |
220 | ||
221 | #if QDIO_VERBOSE_LEVEL>3 | |
222 | #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x) | |
223 | #else | |
224 | #define QDIO_PRINT_CRIT(x...) | |
225 | #endif | |
226 | ||
227 | #if QDIO_VERBOSE_LEVEL>2 | |
228 | #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x) | |
229 | #else | |
230 | #define QDIO_PRINT_ALERT(x...) | |
231 | #endif | |
232 | ||
233 | #if QDIO_VERBOSE_LEVEL>1 | |
234 | #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x) | |
235 | #else | |
236 | #define QDIO_PRINT_EMERG(x...) | |
237 | #endif | |
238 | ||
239 | #define HEXDUMP16(importance,header,ptr) \ | |
240 | QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \ | |
241 | "%02x %02x %02x %02x %02x %02x %02x %02x " \ | |
242 | "%02x %02x %02x %02x\n",*(((char*)ptr)), \ | |
243 | *(((char*)ptr)+1),*(((char*)ptr)+2), \ | |
244 | *(((char*)ptr)+3),*(((char*)ptr)+4), \ | |
245 | *(((char*)ptr)+5),*(((char*)ptr)+6), \ | |
246 | *(((char*)ptr)+7),*(((char*)ptr)+8), \ | |
247 | *(((char*)ptr)+9),*(((char*)ptr)+10), \ | |
248 | *(((char*)ptr)+11),*(((char*)ptr)+12), \ | |
249 | *(((char*)ptr)+13),*(((char*)ptr)+14), \ | |
250 | *(((char*)ptr)+15)); \ | |
251 | QDIO_PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ | |
252 | "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ | |
253 | *(((char*)ptr)+16),*(((char*)ptr)+17), \ | |
254 | *(((char*)ptr)+18),*(((char*)ptr)+19), \ | |
255 | *(((char*)ptr)+20),*(((char*)ptr)+21), \ | |
256 | *(((char*)ptr)+22),*(((char*)ptr)+23), \ | |
257 | *(((char*)ptr)+24),*(((char*)ptr)+25), \ | |
258 | *(((char*)ptr)+26),*(((char*)ptr)+27), \ | |
259 | *(((char*)ptr)+28),*(((char*)ptr)+29), \ | |
260 | *(((char*)ptr)+30),*(((char*)ptr)+31)); | |
261 | ||
262 | /****************** END OF DEBUG FACILITY STUFF *********************/ | |
263 | ||
264 | /* | |
265 | * Some instructions as assembly | |
266 | */ | |
8129ee16 FP |
267 | |
268 | static inline int | |
269 | do_sqbs(unsigned long sch, unsigned char state, int queue, | |
270 | unsigned int *start, unsigned int *count) | |
271 | { | |
272 | #ifdef CONFIG_ARCH_S390X | |
273 | register unsigned long _ccq asm ("0") = *count; | |
274 | register unsigned long _sch asm ("1") = sch; | |
275 | unsigned long _queuestart = ((unsigned long)queue << 32) | *start; | |
276 | ||
277 | asm volatile ( | |
278 | " .insn rsy,0xeb000000008A,%1,0,0(%2)\n\t" | |
279 | : "+d" (_ccq), "+d" (_queuestart) | |
280 | : "d" ((unsigned long)state), "d" (_sch) | |
281 | : "memory", "cc" | |
282 | ); | |
283 | *count = _ccq & 0xff; | |
284 | *start = _queuestart & 0xff; | |
285 | ||
286 | return (_ccq >> 32) & 0xff; | |
287 | #else | |
288 | return 0; | |
289 | #endif | |
290 | } | |
291 | ||
292 | static inline int | |
293 | do_eqbs(unsigned long sch, unsigned char *state, int queue, | |
294 | unsigned int *start, unsigned int *count) | |
295 | { | |
296 | #ifdef CONFIG_ARCH_S390X | |
297 | register unsigned long _ccq asm ("0") = *count; | |
298 | register unsigned long _sch asm ("1") = sch; | |
299 | unsigned long _queuestart = ((unsigned long)queue << 32) | *start; | |
300 | unsigned long _state = 0; | |
301 | ||
302 | asm volatile ( | |
303 | " .insn rrf,0xB99c0000,%1,%2,0,0 \n\t" | |
304 | : "+d" (_ccq), "+d" (_queuestart), "+d" (_state) | |
305 | : "d" (_sch) | |
306 | : "memory", "cc" | |
307 | ); | |
308 | *count = _ccq & 0xff; | |
309 | *start = _queuestart & 0xff; | |
310 | *state = _state & 0xff; | |
311 | ||
312 | return (_ccq >> 32) & 0xff; | |
313 | #else | |
314 | return 0; | |
315 | #endif | |
316 | } | |
317 | ||
318 | ||
4448aaf0 | 319 | static inline int |
1da177e4 LT |
320 | do_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2) |
321 | { | |
322 | int cc; | |
323 | ||
324 | #ifndef CONFIG_ARCH_S390X | |
325 | asm volatile ( | |
326 | "lhi 0,2 \n\t" | |
327 | "lr 1,%1 \n\t" | |
328 | "lr 2,%2 \n\t" | |
329 | "lr 3,%3 \n\t" | |
330 | "siga 0 \n\t" | |
331 | "ipm %0 \n\t" | |
332 | "srl %0,28 \n\t" | |
333 | : "=d" (cc) | |
8129ee16 | 334 | : "d" (irq), "d" (mask1), "d" (mask2) |
1da177e4 LT |
335 | : "cc", "0", "1", "2", "3" |
336 | ); | |
337 | #else /* CONFIG_ARCH_S390X */ | |
338 | asm volatile ( | |
339 | "lghi 0,2 \n\t" | |
340 | "llgfr 1,%1 \n\t" | |
341 | "llgfr 2,%2 \n\t" | |
342 | "llgfr 3,%3 \n\t" | |
343 | "siga 0 \n\t" | |
344 | "ipm %0 \n\t" | |
345 | "srl %0,28 \n\t" | |
346 | : "=d" (cc) | |
8129ee16 | 347 | : "d" (irq), "d" (mask1), "d" (mask2) |
1da177e4 LT |
348 | : "cc", "0", "1", "2", "3" |
349 | ); | |
350 | #endif /* CONFIG_ARCH_S390X */ | |
351 | return cc; | |
352 | } | |
353 | ||
4448aaf0 | 354 | static inline int |
1da177e4 LT |
355 | do_siga_input(unsigned int irq, unsigned int mask) |
356 | { | |
357 | int cc; | |
358 | ||
359 | #ifndef CONFIG_ARCH_S390X | |
360 | asm volatile ( | |
361 | "lhi 0,1 \n\t" | |
362 | "lr 1,%1 \n\t" | |
363 | "lr 2,%2 \n\t" | |
364 | "siga 0 \n\t" | |
365 | "ipm %0 \n\t" | |
366 | "srl %0,28 \n\t" | |
367 | : "=d" (cc) | |
8129ee16 | 368 | : "d" (irq), "d" (mask) |
1da177e4 LT |
369 | : "cc", "0", "1", "2", "memory" |
370 | ); | |
371 | #else /* CONFIG_ARCH_S390X */ | |
372 | asm volatile ( | |
373 | "lghi 0,1 \n\t" | |
374 | "llgfr 1,%1 \n\t" | |
375 | "llgfr 2,%2 \n\t" | |
376 | "siga 0 \n\t" | |
377 | "ipm %0 \n\t" | |
378 | "srl %0,28 \n\t" | |
379 | : "=d" (cc) | |
8129ee16 | 380 | : "d" (irq), "d" (mask) |
1da177e4 LT |
381 | : "cc", "0", "1", "2", "memory" |
382 | ); | |
383 | #endif /* CONFIG_ARCH_S390X */ | |
384 | ||
385 | return cc; | |
386 | } | |
387 | ||
4448aaf0 | 388 | static inline int |
8129ee16 FP |
389 | do_siga_output(unsigned long irq, unsigned long mask, __u32 *bb, |
390 | unsigned int fc) | |
1da177e4 LT |
391 | { |
392 | int cc; | |
393 | __u32 busy_bit; | |
394 | ||
395 | #ifndef CONFIG_ARCH_S390X | |
396 | asm volatile ( | |
397 | "lhi 0,0 \n\t" | |
398 | "lr 1,%2 \n\t" | |
399 | "lr 2,%3 \n\t" | |
400 | "siga 0 \n\t" | |
401 | "0:" | |
402 | "ipm %0 \n\t" | |
403 | "srl %0,28 \n\t" | |
404 | "srl 0,31 \n\t" | |
405 | "lr %1,0 \n\t" | |
406 | "1: \n\t" | |
407 | ".section .fixup,\"ax\"\n\t" | |
408 | "2: \n\t" | |
409 | "lhi %0,%4 \n\t" | |
410 | "bras 1,3f \n\t" | |
411 | ".long 1b \n\t" | |
412 | "3: \n\t" | |
413 | "l 1,0(1) \n\t" | |
414 | "br 1 \n\t" | |
415 | ".previous \n\t" | |
416 | ".section __ex_table,\"a\"\n\t" | |
417 | ".align 4 \n\t" | |
418 | ".long 0b,2b \n\t" | |
419 | ".previous \n\t" | |
420 | : "=d" (cc), "=d" (busy_bit) | |
8129ee16 | 421 | : "d" (irq), "d" (mask), |
1da177e4 LT |
422 | "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION) |
423 | : "cc", "0", "1", "2", "memory" | |
424 | ); | |
425 | #else /* CONFIG_ARCH_S390X */ | |
426 | asm volatile ( | |
8129ee16 FP |
427 | "llgfr 0,%5 \n\t" |
428 | "lgr 1,%2 \n\t" | |
1da177e4 LT |
429 | "llgfr 2,%3 \n\t" |
430 | "siga 0 \n\t" | |
431 | "0:" | |
432 | "ipm %0 \n\t" | |
433 | "srl %0,28 \n\t" | |
434 | "srl 0,31 \n\t" | |
435 | "llgfr %1,0 \n\t" | |
436 | "1: \n\t" | |
437 | ".section .fixup,\"ax\"\n\t" | |
438 | "lghi %0,%4 \n\t" | |
439 | "jg 1b \n\t" | |
440 | ".previous\n\t" | |
441 | ".section __ex_table,\"a\"\n\t" | |
442 | ".align 8 \n\t" | |
443 | ".quad 0b,1b \n\t" | |
444 | ".previous \n\t" | |
445 | : "=d" (cc), "=d" (busy_bit) | |
8129ee16 FP |
446 | : "d" (irq), "d" (mask), |
447 | "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION), "d" (fc) | |
1da177e4 LT |
448 | : "cc", "0", "1", "2", "memory" |
449 | ); | |
450 | #endif /* CONFIG_ARCH_S390X */ | |
451 | ||
452 | (*bb) = busy_bit; | |
453 | return cc; | |
454 | } | |
455 | ||
4448aaf0 | 456 | static inline unsigned long |
1da177e4 LT |
457 | do_clear_global_summary(void) |
458 | { | |
459 | ||
460 | unsigned long time; | |
461 | ||
462 | #ifndef CONFIG_ARCH_S390X | |
463 | asm volatile ( | |
464 | "lhi 1,3 \n\t" | |
465 | ".insn rre,0xb2650000,2,0 \n\t" | |
466 | "lr %0,3 \n\t" | |
467 | : "=d" (time) : : "cc", "1", "2", "3" | |
468 | ); | |
469 | #else /* CONFIG_ARCH_S390X */ | |
470 | asm volatile ( | |
471 | "lghi 1,3 \n\t" | |
472 | ".insn rre,0xb2650000,2,0 \n\t" | |
473 | "lgr %0,3 \n\t" | |
474 | : "=d" (time) : : "cc", "1", "2", "3" | |
475 | ); | |
476 | #endif /* CONFIG_ARCH_S390X */ | |
477 | ||
478 | return time; | |
479 | } | |
480 | ||
481 | /* | |
482 | * QDIO device commands returned by extended Sense-ID | |
483 | */ | |
484 | #define DEFAULT_ESTABLISH_QS_CMD 0x1b | |
485 | #define DEFAULT_ESTABLISH_QS_COUNT 0x1000 | |
486 | #define DEFAULT_ACTIVATE_QS_CMD 0x1f | |
487 | #define DEFAULT_ACTIVATE_QS_COUNT 0 | |
488 | ||
489 | /* | |
490 | * additional CIWs returned by extended Sense-ID | |
491 | */ | |
492 | #define CIW_TYPE_EQUEUE 0x3 /* establish QDIO queues */ | |
493 | #define CIW_TYPE_AQUEUE 0x4 /* activate QDIO queues */ | |
494 | ||
495 | #define QDIO_CHSC_RESPONSE_CODE_OK 1 | |
496 | /* flags for st qdio sch data */ | |
497 | #define CHSC_FLAG_QDIO_CAPABILITY 0x80 | |
498 | #define CHSC_FLAG_VALIDITY 0x40 | |
499 | ||
500 | #define CHSC_FLAG_SIGA_INPUT_NECESSARY 0x40 | |
501 | #define CHSC_FLAG_SIGA_OUTPUT_NECESSARY 0x20 | |
502 | #define CHSC_FLAG_SIGA_SYNC_NECESSARY 0x10 | |
503 | #define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08 | |
504 | #define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04 | |
505 | ||
506 | #ifdef QDIO_PERFORMANCE_STATS | |
507 | struct qdio_perf_stats { | |
508 | unsigned int tl_runs; | |
509 | ||
510 | unsigned int siga_outs; | |
511 | unsigned int siga_ins; | |
512 | unsigned int siga_syncs; | |
513 | unsigned int pcis; | |
514 | unsigned int thinints; | |
515 | unsigned int fast_reqs; | |
516 | ||
517 | __u64 start_time_outbound; | |
518 | unsigned int outbound_cnt; | |
519 | unsigned int outbound_time; | |
520 | __u64 start_time_inbound; | |
521 | unsigned int inbound_cnt; | |
522 | unsigned int inbound_time; | |
523 | }; | |
524 | #endif /* QDIO_PERFORMANCE_STATS */ | |
525 | ||
526 | #define atomic_swap(a,b) xchg((int*)a.counter,b) | |
527 | ||
528 | /* unlikely as the later the better */ | |
529 | #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q) | |
530 | #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \ | |
531 | qdio_siga_sync(q,~0U,~0U) | |
532 | #define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \ | |
533 | qdio_siga_sync(q,~0U,0) | |
534 | ||
535 | #define NOW qdio_get_micros() | |
536 | #define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW | |
537 | #define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time) | |
538 | #define SAVE_FRONTIER(q,val) q->last_move_ftc=val | |
539 | #define GET_SAVED_FRONTIER(q) (q->last_move_ftc) | |
540 | ||
541 | #define MY_MODULE_STRING(x) #x | |
542 | ||
543 | #ifdef CONFIG_ARCH_S390X | |
544 | #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x) | |
545 | #else /* CONFIG_ARCH_S390X */ | |
546 | #define QDIO_GET_ADDR(x) ((__u32)(long)x) | |
547 | #endif /* CONFIG_ARCH_S390X */ | |
548 | ||
1da177e4 LT |
549 | struct qdio_q { |
550 | volatile struct slsb slsb; | |
551 | ||
552 | char unused[QDIO_MAX_BUFFERS_PER_Q]; | |
553 | ||
8129ee16 | 554 | __u32 * dev_st_chg_ind; |
1da177e4 LT |
555 | |
556 | int is_input_q; | |
557 | int irq; | |
558 | struct ccw_device *cdev; | |
559 | ||
560 | unsigned int is_iqdio_q; | |
561 | unsigned int is_thinint_q; | |
562 | ||
563 | /* bit 0 means queue 0, bit 1 means queue 1, ... */ | |
564 | unsigned int mask; | |
565 | unsigned int q_no; | |
566 | ||
567 | qdio_handler_t (*handler); | |
568 | ||
569 | /* points to the next buffer to be checked for having | |
570 | * been processed by the card (outbound) | |
571 | * or to the next buffer the program should check for (inbound) */ | |
572 | volatile int first_to_check; | |
573 | /* and the last time it was: */ | |
574 | volatile int last_move_ftc; | |
575 | ||
576 | atomic_t number_of_buffers_used; | |
577 | atomic_t polling; | |
578 | ||
579 | unsigned int siga_in; | |
580 | unsigned int siga_out; | |
581 | unsigned int siga_sync; | |
582 | unsigned int siga_sync_done_on_thinints; | |
583 | unsigned int siga_sync_done_on_outb_tis; | |
584 | unsigned int hydra_gives_outbound_pcis; | |
585 | ||
586 | /* used to save beginning position when calling dd_handlers */ | |
587 | int first_element_to_kick; | |
588 | ||
589 | atomic_t use_count; | |
590 | atomic_t is_in_shutdown; | |
591 | ||
592 | void *irq_ptr; | |
593 | ||
594 | #ifdef QDIO_USE_TIMERS_FOR_POLLING | |
595 | struct timer_list timer; | |
596 | atomic_t timer_already_set; | |
597 | spinlock_t timer_lock; | |
598 | #else /* QDIO_USE_TIMERS_FOR_POLLING */ | |
599 | struct tasklet_struct tasklet; | |
600 | #endif /* QDIO_USE_TIMERS_FOR_POLLING */ | |
601 | ||
8129ee16 | 602 | |
1da177e4 LT |
603 | enum qdio_irq_states state; |
604 | ||
605 | /* used to store the error condition during a data transfer */ | |
606 | unsigned int qdio_error; | |
607 | unsigned int siga_error; | |
608 | unsigned int error_status_flags; | |
609 | ||
610 | /* list of interesting queues */ | |
611 | volatile struct qdio_q *list_next; | |
612 | volatile struct qdio_q *list_prev; | |
613 | ||
614 | struct sl *sl; | |
615 | volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q]; | |
616 | ||
617 | struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q]; | |
618 | ||
619 | unsigned long int_parm; | |
620 | ||
621 | /*struct { | |
622 | int in_bh_check_limit; | |
623 | int threshold; | |
624 | } threshold_classes[QDIO_STATS_CLASSES];*/ | |
625 | ||
626 | struct { | |
627 | /* inbound: the time to stop polling | |
628 | outbound: the time to kick peer */ | |
629 | int threshold; /* the real value */ | |
630 | ||
631 | /* outbound: last time of do_QDIO | |
632 | inbound: last time of noticing incoming data */ | |
633 | /*__u64 last_transfer_times[QDIO_STATS_NUMBER]; | |
634 | int last_transfer_index; */ | |
635 | ||
636 | __u64 last_transfer_time; | |
637 | __u64 busy_start; | |
638 | } timing; | |
639 | atomic_t busy_siga_counter; | |
640 | unsigned int queue_type; | |
641 | ||
642 | /* leave this member at the end. won't be cleared in qdio_fill_qs */ | |
643 | struct slib *slib; /* a page is allocated under this pointer, | |
644 | sl points into this page, offset PAGE_SIZE/2 | |
645 | (after slib) */ | |
646 | } __attribute__ ((aligned(256))); | |
647 | ||
648 | struct qdio_irq { | |
649 | __u32 * volatile dev_st_chg_ind; | |
650 | ||
651 | unsigned long int_parm; | |
652 | int irq; | |
653 | ||
654 | unsigned int is_iqdio_irq; | |
655 | unsigned int is_thinint_irq; | |
656 | unsigned int hydra_gives_outbound_pcis; | |
657 | unsigned int sync_done_on_outb_pcis; | |
658 | ||
8129ee16 FP |
659 | /* QEBSM facility */ |
660 | unsigned int is_qebsm; | |
661 | unsigned long sch_token; | |
662 | ||
1da177e4 LT |
663 | enum qdio_irq_states state; |
664 | ||
665 | unsigned int no_input_qs; | |
666 | unsigned int no_output_qs; | |
667 | ||
668 | unsigned char qdioac; | |
669 | ||
670 | struct ccw1 ccw; | |
671 | ||
672 | struct ciw equeue; | |
673 | struct ciw aqueue; | |
674 | ||
675 | struct qib qib; | |
676 | ||
677 | void (*original_int_handler) (struct ccw_device *, | |
678 | unsigned long, struct irb *); | |
679 | ||
680 | /* leave these four members together at the end. won't be cleared in qdio_fill_irq */ | |
681 | struct qdr *qdr; | |
682 | struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ]; | |
683 | struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ]; | |
684 | struct semaphore setting_up_sema; | |
685 | }; | |
686 | #endif |