1 #ifndef _CIO_QDIO_H 2 #define _CIO_QDIO_H 3 4 #include <asm/page.h> 5 6 #include "schid.h" 7 8 #define VERSION_CIO_QDIO_H "$Revision: 1.40 $" 9 10 #ifdef CONFIG_QDIO_DEBUG 11 #define QDIO_VERBOSE_LEVEL 9 12 #else /* CONFIG_QDIO_DEBUG */ 13 #define QDIO_VERBOSE_LEVEL 5 14 #endif /* CONFIG_QDIO_DEBUG */ 15 #define QDIO_USE_PROCESSING_STATE 16 17 #ifdef CONFIG_QDIO_PERF_STATS 18 #define QDIO_PERFORMANCE_STATS 19 #endif /* CONFIG_QDIO_PERF_STATS */ 20 21 #define QDIO_MINIMAL_BH_RELIEF_TIME 16 22 #define QDIO_TIMER_POLL_VALUE 1 23 #define IQDIO_TIMER_POLL_VALUE 1 24 25 /* 26 * unfortunately this can't be (QDIO_MAX_BUFFERS_PER_Q*4/3) or so -- as 27 * we never know, whether we'll get initiative again, e.g. to give the 28 * transmit skb's back to the stack, however the stack may be waiting for 29 * them... therefore we define 4 as threshold to start polling (which 30 * will stop as soon as the asynchronous queue catches up) 31 * btw, this only applies to the asynchronous HiperSockets queue 32 */ 33 #define IQDIO_FILL_LEVEL_TO_POLL 4 34 35 #define TIQDIO_THININT_ISC 3 36 #define TIQDIO_DELAY_TARGET 0 37 #define QDIO_BUSY_BIT_PATIENCE 100 /* in microsecs */ 38 #define QDIO_BUSY_BIT_GIVE_UP 10000000 /* 10 seconds */ 39 #define IQDIO_GLOBAL_LAPS 2 /* GLOBAL_LAPS are not used as we */ 40 #define IQDIO_GLOBAL_LAPS_INT 1 /* don't global summary */ 41 #define IQDIO_LOCAL_LAPS 4 42 #define IQDIO_LOCAL_LAPS_INT 1 43 #define IQDIO_GLOBAL_SUMMARY_CC_MASK 2 44 /*#define IQDIO_IQDC_INT_PARM 0x1234*/ 45 46 #define QDIO_Q_LAPS 5 47 48 #define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY 49 50 #define L2_CACHELINE_SIZE 256 51 #define INDICATORS_PER_CACHELINE (L2_CACHELINE_SIZE/sizeof(__u32)) 52 53 #define QDIO_PERF "qdio_perf" 54 55 /* must be a power of 2 */ 56 /*#define QDIO_STATS_NUMBER 4 57 58 #define QDIO_STATS_CLASSES 2 59 #define QDIO_STATS_COUNT_NEEDED 2*/ 60 61 #define QDIO_NO_USE_COUNT_TIMEOUT (1*HZ) /* wait for 1 sec on each q before 62 exiting without having use_count 63 of the queue to 0 */ 64 65 #define QDIO_ESTABLISH_TIMEOUT (1*HZ) 66 #define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10) 67 #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ) 68 #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ) 69 70 enum qdio_irq_states { 71 QDIO_IRQ_STATE_INACTIVE, 72 QDIO_IRQ_STATE_ESTABLISHED, 73 QDIO_IRQ_STATE_ACTIVE, 74 QDIO_IRQ_STATE_STOPPED, 75 QDIO_IRQ_STATE_CLEANUP, 76 QDIO_IRQ_STATE_ERR, 77 NR_QDIO_IRQ_STATES, 78 }; 79 80 /* used as intparm in do_IO: */ 81 #define QDIO_DOING_SENSEID 0 82 #define QDIO_DOING_ESTABLISH 1 83 #define QDIO_DOING_ACTIVATE 2 84 #define QDIO_DOING_CLEANUP 3 85 86 /************************* DEBUG FACILITY STUFF *********************/ 87 88 #define QDIO_DBF_HEX(ex,name,level,addr,len) \ 89 do { \ 90 if (ex) \ 91 debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \ 92 else \ 93 debug_event(qdio_dbf_##name,level,(void*)(addr),len); \ 94 } while (0) 95 #define QDIO_DBF_TEXT(ex,name,level,text) \ 96 do { \ 97 if (ex) \ 98 debug_text_exception(qdio_dbf_##name,level,text); \ 99 else \ 100 debug_text_event(qdio_dbf_##name,level,text); \ 101 } while (0) 102 103 104 #define QDIO_DBF_HEX0(ex,name,addr,len) QDIO_DBF_HEX(ex,name,0,addr,len) 105 #define QDIO_DBF_HEX1(ex,name,addr,len) QDIO_DBF_HEX(ex,name,1,addr,len) 106 #define QDIO_DBF_HEX2(ex,name,addr,len) QDIO_DBF_HEX(ex,name,2,addr,len) 107 #ifdef CONFIG_QDIO_DEBUG 108 #define QDIO_DBF_HEX3(ex,name,addr,len) QDIO_DBF_HEX(ex,name,3,addr,len) 109 #define QDIO_DBF_HEX4(ex,name,addr,len) QDIO_DBF_HEX(ex,name,4,addr,len) 110 #define QDIO_DBF_HEX5(ex,name,addr,len) QDIO_DBF_HEX(ex,name,5,addr,len) 111 #define QDIO_DBF_HEX6(ex,name,addr,len) QDIO_DBF_HEX(ex,name,6,addr,len) 112 #else /* CONFIG_QDIO_DEBUG */ 113 #define QDIO_DBF_HEX3(ex,name,addr,len) do {} while (0) 114 #define QDIO_DBF_HEX4(ex,name,addr,len) do {} while (0) 115 #define QDIO_DBF_HEX5(ex,name,addr,len) do {} while (0) 116 #define QDIO_DBF_HEX6(ex,name,addr,len) do {} while (0) 117 #endif /* CONFIG_QDIO_DEBUG */ 118 119 #define QDIO_DBF_TEXT0(ex,name,text) QDIO_DBF_TEXT(ex,name,0,text) 120 #define QDIO_DBF_TEXT1(ex,name,text) QDIO_DBF_TEXT(ex,name,1,text) 121 #define QDIO_DBF_TEXT2(ex,name,text) QDIO_DBF_TEXT(ex,name,2,text) 122 #ifdef CONFIG_QDIO_DEBUG 123 #define QDIO_DBF_TEXT3(ex,name,text) QDIO_DBF_TEXT(ex,name,3,text) 124 #define QDIO_DBF_TEXT4(ex,name,text) QDIO_DBF_TEXT(ex,name,4,text) 125 #define QDIO_DBF_TEXT5(ex,name,text) QDIO_DBF_TEXT(ex,name,5,text) 126 #define QDIO_DBF_TEXT6(ex,name,text) QDIO_DBF_TEXT(ex,name,6,text) 127 #else /* CONFIG_QDIO_DEBUG */ 128 #define QDIO_DBF_TEXT3(ex,name,text) do {} while (0) 129 #define QDIO_DBF_TEXT4(ex,name,text) do {} while (0) 130 #define QDIO_DBF_TEXT5(ex,name,text) do {} while (0) 131 #define QDIO_DBF_TEXT6(ex,name,text) do {} while (0) 132 #endif /* CONFIG_QDIO_DEBUG */ 133 134 #define QDIO_DBF_SETUP_NAME "qdio_setup" 135 #define QDIO_DBF_SETUP_LEN 8 136 #define QDIO_DBF_SETUP_PAGES 4 137 #define QDIO_DBF_SETUP_NR_AREAS 1 138 #ifdef CONFIG_QDIO_DEBUG 139 #define QDIO_DBF_SETUP_LEVEL 6 140 #else /* CONFIG_QDIO_DEBUG */ 141 #define QDIO_DBF_SETUP_LEVEL 2 142 #endif /* CONFIG_QDIO_DEBUG */ 143 144 #define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */ 145 #define QDIO_DBF_SBAL_LEN 256 146 #define QDIO_DBF_SBAL_PAGES 4 147 #define QDIO_DBF_SBAL_NR_AREAS 2 148 #ifdef CONFIG_QDIO_DEBUG 149 #define QDIO_DBF_SBAL_LEVEL 6 150 #else /* CONFIG_QDIO_DEBUG */ 151 #define QDIO_DBF_SBAL_LEVEL 2 152 #endif /* CONFIG_QDIO_DEBUG */ 153 154 #define QDIO_DBF_TRACE_NAME "qdio_trace" 155 #define QDIO_DBF_TRACE_LEN 8 156 #define QDIO_DBF_TRACE_NR_AREAS 2 157 #ifdef CONFIG_QDIO_DEBUG 158 #define QDIO_DBF_TRACE_PAGES 16 159 #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */ 160 #else /* CONFIG_QDIO_DEBUG */ 161 #define QDIO_DBF_TRACE_PAGES 4 162 #define QDIO_DBF_TRACE_LEVEL 2 163 #endif /* CONFIG_QDIO_DEBUG */ 164 165 #define QDIO_DBF_SENSE_NAME "qdio_sense" 166 #define QDIO_DBF_SENSE_LEN 64 167 #define QDIO_DBF_SENSE_PAGES 2 168 #define QDIO_DBF_SENSE_NR_AREAS 1 169 #ifdef CONFIG_QDIO_DEBUG 170 #define QDIO_DBF_SENSE_LEVEL 6 171 #else /* CONFIG_QDIO_DEBUG */ 172 #define QDIO_DBF_SENSE_LEVEL 2 173 #endif /* CONFIG_QDIO_DEBUG */ 174 175 #ifdef CONFIG_QDIO_DEBUG 176 #define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT 177 178 #define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out" 179 #define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q 180 #define QDIO_DBF_SLSB_OUT_PAGES 256 181 #define QDIO_DBF_SLSB_OUT_NR_AREAS 1 182 #define QDIO_DBF_SLSB_OUT_LEVEL 6 183 184 #define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in" 185 #define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q 186 #define QDIO_DBF_SLSB_IN_PAGES 256 187 #define QDIO_DBF_SLSB_IN_NR_AREAS 1 188 #define QDIO_DBF_SLSB_IN_LEVEL 6 189 #endif /* CONFIG_QDIO_DEBUG */ 190 191 #define QDIO_PRINTK_HEADER QDIO_NAME ": " 192 193 #if QDIO_VERBOSE_LEVEL>8 194 #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x) 195 #else 196 #define QDIO_PRINT_STUPID(x...) 197 #endif 198 199 #if QDIO_VERBOSE_LEVEL>7 200 #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x) 201 #else 202 #define QDIO_PRINT_ALL(x...) 203 #endif 204 205 #if QDIO_VERBOSE_LEVEL>6 206 #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x) 207 #else 208 #define QDIO_PRINT_INFO(x...) 209 #endif 210 211 #if QDIO_VERBOSE_LEVEL>5 212 #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x) 213 #else 214 #define QDIO_PRINT_WARN(x...) 215 #endif 216 217 #if QDIO_VERBOSE_LEVEL>4 218 #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x) 219 #else 220 #define QDIO_PRINT_ERR(x...) 221 #endif 222 223 #if QDIO_VERBOSE_LEVEL>3 224 #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x) 225 #else 226 #define QDIO_PRINT_CRIT(x...) 227 #endif 228 229 #if QDIO_VERBOSE_LEVEL>2 230 #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x) 231 #else 232 #define QDIO_PRINT_ALERT(x...) 233 #endif 234 235 #if QDIO_VERBOSE_LEVEL>1 236 #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x) 237 #else 238 #define QDIO_PRINT_EMERG(x...) 239 #endif 240 241 #define HEXDUMP16(importance,header,ptr) \ 242 QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \ 243 "%02x %02x %02x %02x %02x %02x %02x %02x " \ 244 "%02x %02x %02x %02x\n",*(((char*)ptr)), \ 245 *(((char*)ptr)+1),*(((char*)ptr)+2), \ 246 *(((char*)ptr)+3),*(((char*)ptr)+4), \ 247 *(((char*)ptr)+5),*(((char*)ptr)+6), \ 248 *(((char*)ptr)+7),*(((char*)ptr)+8), \ 249 *(((char*)ptr)+9),*(((char*)ptr)+10), \ 250 *(((char*)ptr)+11),*(((char*)ptr)+12), \ 251 *(((char*)ptr)+13),*(((char*)ptr)+14), \ 252 *(((char*)ptr)+15)); \ 253 QDIO_PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ 254 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ 255 *(((char*)ptr)+16),*(((char*)ptr)+17), \ 256 *(((char*)ptr)+18),*(((char*)ptr)+19), \ 257 *(((char*)ptr)+20),*(((char*)ptr)+21), \ 258 *(((char*)ptr)+22),*(((char*)ptr)+23), \ 259 *(((char*)ptr)+24),*(((char*)ptr)+25), \ 260 *(((char*)ptr)+26),*(((char*)ptr)+27), \ 261 *(((char*)ptr)+28),*(((char*)ptr)+29), \ 262 *(((char*)ptr)+30),*(((char*)ptr)+31)); 263 264 /****************** END OF DEBUG FACILITY STUFF *********************/ 265 266 /* 267 * Some instructions as assembly 268 */ 269 270 static inline int 271 do_sqbs(unsigned long sch, unsigned char state, int queue, 272 unsigned int *start, unsigned int *count) 273 { 274 #ifdef CONFIG_64BIT 275 register unsigned long _ccq asm ("0") = *count; 276 register unsigned long _sch asm ("1") = sch; 277 unsigned long _queuestart = ((unsigned long)queue << 32) | *start; 278 279 asm volatile ( 280 " .insn rsy,0xeb000000008A,%1,0,0(%2)\n\t" 281 : "+d" (_ccq), "+d" (_queuestart) 282 : "d" ((unsigned long)state), "d" (_sch) 283 : "memory", "cc" 284 ); 285 *count = _ccq & 0xff; 286 *start = _queuestart & 0xff; 287 288 return (_ccq >> 32) & 0xff; 289 #else 290 return 0; 291 #endif 292 } 293 294 static inline int 295 do_eqbs(unsigned long sch, unsigned char *state, int queue, 296 unsigned int *start, unsigned int *count) 297 { 298 #ifdef CONFIG_64BIT 299 register unsigned long _ccq asm ("0") = *count; 300 register unsigned long _sch asm ("1") = sch; 301 unsigned long _queuestart = ((unsigned long)queue << 32) | *start; 302 unsigned long _state = 0; 303 304 asm volatile ( 305 " .insn rrf,0xB99c0000,%1,%2,0,0 \n\t" 306 : "+d" (_ccq), "+d" (_queuestart), "+d" (_state) 307 : "d" (_sch) 308 : "memory", "cc" 309 ); 310 *count = _ccq & 0xff; 311 *start = _queuestart & 0xff; 312 *state = _state & 0xff; 313 314 return (_ccq >> 32) & 0xff; 315 #else 316 return 0; 317 #endif 318 } 319 320 321 static inline int 322 do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2) 323 { 324 int cc; 325 326 #ifndef CONFIG_64BIT 327 asm volatile ( 328 "lhi 0,2 \n\t" 329 "lr 1,%1 \n\t" 330 "lr 2,%2 \n\t" 331 "lr 3,%3 \n\t" 332 "siga 0 \n\t" 333 "ipm %0 \n\t" 334 "srl %0,28 \n\t" 335 : "=d" (cc) 336 : "d" (schid), "d" (mask1), "d" (mask2) 337 : "cc", "0", "1", "2", "3" 338 ); 339 #else /* CONFIG_64BIT */ 340 asm volatile ( 341 "lghi 0,2 \n\t" 342 "llgfr 1,%1 \n\t" 343 "llgfr 2,%2 \n\t" 344 "llgfr 3,%3 \n\t" 345 "siga 0 \n\t" 346 "ipm %0 \n\t" 347 "srl %0,28 \n\t" 348 : "=d" (cc) 349 : "d" (schid), "d" (mask1), "d" (mask2) 350 : "cc", "0", "1", "2", "3" 351 ); 352 #endif /* CONFIG_64BIT */ 353 return cc; 354 } 355 356 static inline int 357 do_siga_input(struct subchannel_id schid, unsigned int mask) 358 { 359 int cc; 360 361 #ifndef CONFIG_64BIT 362 asm volatile ( 363 "lhi 0,1 \n\t" 364 "lr 1,%1 \n\t" 365 "lr 2,%2 \n\t" 366 "siga 0 \n\t" 367 "ipm %0 \n\t" 368 "srl %0,28 \n\t" 369 : "=d" (cc) 370 : "d" (schid), "d" (mask) 371 : "cc", "0", "1", "2", "memory" 372 ); 373 #else /* CONFIG_64BIT */ 374 asm volatile ( 375 "lghi 0,1 \n\t" 376 "llgfr 1,%1 \n\t" 377 "llgfr 2,%2 \n\t" 378 "siga 0 \n\t" 379 "ipm %0 \n\t" 380 "srl %0,28 \n\t" 381 : "=d" (cc) 382 : "d" (schid), "d" (mask) 383 : "cc", "0", "1", "2", "memory" 384 ); 385 #endif /* CONFIG_64BIT */ 386 387 return cc; 388 } 389 390 static inline int 391 do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb, 392 unsigned int fc) 393 { 394 int cc; 395 __u32 busy_bit; 396 397 #ifndef CONFIG_64BIT 398 asm volatile ( 399 "lhi 0,0 \n\t" 400 "lr 1,%2 \n\t" 401 "lr 2,%3 \n\t" 402 "siga 0 \n\t" 403 "0:" 404 "ipm %0 \n\t" 405 "srl %0,28 \n\t" 406 "srl 0,31 \n\t" 407 "lr %1,0 \n\t" 408 "1: \n\t" 409 ".section .fixup,\"ax\"\n\t" 410 "2: \n\t" 411 "lhi %0,%4 \n\t" 412 "bras 1,3f \n\t" 413 ".long 1b \n\t" 414 "3: \n\t" 415 "l 1,0(1) \n\t" 416 "br 1 \n\t" 417 ".previous \n\t" 418 ".section __ex_table,\"a\"\n\t" 419 ".align 4 \n\t" 420 ".long 0b,2b \n\t" 421 ".previous \n\t" 422 : "=d" (cc), "=d" (busy_bit) 423 : "d" (schid), "d" (mask), 424 "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION) 425 : "cc", "0", "1", "2", "memory" 426 ); 427 #else /* CONFIG_64BIT */ 428 asm volatile ( 429 "llgfr 0,%5 \n\t" 430 "lgr 1,%2 \n\t" 431 "llgfr 2,%3 \n\t" 432 "siga 0 \n\t" 433 "0:" 434 "ipm %0 \n\t" 435 "srl %0,28 \n\t" 436 "srl 0,31 \n\t" 437 "llgfr %1,0 \n\t" 438 "1: \n\t" 439 ".section .fixup,\"ax\"\n\t" 440 "lghi %0,%4 \n\t" 441 "jg 1b \n\t" 442 ".previous\n\t" 443 ".section __ex_table,\"a\"\n\t" 444 ".align 8 \n\t" 445 ".quad 0b,1b \n\t" 446 ".previous \n\t" 447 : "=d" (cc), "=d" (busy_bit) 448 : "d" (schid), "d" (mask), 449 "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION), "d" (fc) 450 : "cc", "0", "1", "2", "memory" 451 ); 452 #endif /* CONFIG_64BIT */ 453 454 (*bb) = busy_bit; 455 return cc; 456 } 457 458 static inline unsigned long 459 do_clear_global_summary(void) 460 { 461 462 unsigned long time; 463 464 #ifndef CONFIG_64BIT 465 asm volatile ( 466 "lhi 1,3 \n\t" 467 ".insn rre,0xb2650000,2,0 \n\t" 468 "lr %0,3 \n\t" 469 : "=d" (time) : : "cc", "1", "2", "3" 470 ); 471 #else /* CONFIG_64BIT */ 472 asm volatile ( 473 "lghi 1,3 \n\t" 474 ".insn rre,0xb2650000,2,0 \n\t" 475 "lgr %0,3 \n\t" 476 : "=d" (time) : : "cc", "1", "2", "3" 477 ); 478 #endif /* CONFIG_64BIT */ 479 480 return time; 481 } 482 483 /* 484 * QDIO device commands returned by extended Sense-ID 485 */ 486 #define DEFAULT_ESTABLISH_QS_CMD 0x1b 487 #define DEFAULT_ESTABLISH_QS_COUNT 0x1000 488 #define DEFAULT_ACTIVATE_QS_CMD 0x1f 489 #define DEFAULT_ACTIVATE_QS_COUNT 0 490 491 /* 492 * additional CIWs returned by extended Sense-ID 493 */ 494 #define CIW_TYPE_EQUEUE 0x3 /* establish QDIO queues */ 495 #define CIW_TYPE_AQUEUE 0x4 /* activate QDIO queues */ 496 497 #define QDIO_CHSC_RESPONSE_CODE_OK 1 498 /* flags for st qdio sch data */ 499 #define CHSC_FLAG_QDIO_CAPABILITY 0x80 500 #define CHSC_FLAG_VALIDITY 0x40 501 502 #define CHSC_FLAG_SIGA_INPUT_NECESSARY 0x40 503 #define CHSC_FLAG_SIGA_OUTPUT_NECESSARY 0x20 504 #define CHSC_FLAG_SIGA_SYNC_NECESSARY 0x10 505 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08 506 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04 507 508 #ifdef QDIO_PERFORMANCE_STATS 509 struct qdio_perf_stats { 510 unsigned int tl_runs; 511 512 unsigned int siga_outs; 513 unsigned int siga_ins; 514 unsigned int siga_syncs; 515 unsigned int pcis; 516 unsigned int thinints; 517 unsigned int fast_reqs; 518 519 __u64 start_time_outbound; 520 unsigned int outbound_cnt; 521 unsigned int outbound_time; 522 __u64 start_time_inbound; 523 unsigned int inbound_cnt; 524 unsigned int inbound_time; 525 }; 526 #endif /* QDIO_PERFORMANCE_STATS */ 527 528 #define atomic_swap(a,b) xchg((int*)a.counter,b) 529 530 /* unlikely as the later the better */ 531 #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q) 532 #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \ 533 qdio_siga_sync(q,~0U,~0U) 534 #define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \ 535 qdio_siga_sync(q,~0U,0) 536 537 #define NOW qdio_get_micros() 538 #define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW 539 #define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time) 540 #define SAVE_FRONTIER(q,val) q->last_move_ftc=val 541 #define GET_SAVED_FRONTIER(q) (q->last_move_ftc) 542 543 #define MY_MODULE_STRING(x) #x 544 545 #ifdef CONFIG_64BIT 546 #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x) 547 #else /* CONFIG_64BIT */ 548 #define QDIO_GET_ADDR(x) ((__u32)(long)x) 549 #endif /* CONFIG_64BIT */ 550 551 struct qdio_q { 552 volatile struct slsb slsb; 553 554 char unused[QDIO_MAX_BUFFERS_PER_Q]; 555 556 __u32 * dev_st_chg_ind; 557 558 int is_input_q; 559 struct subchannel_id schid; 560 struct ccw_device *cdev; 561 562 unsigned int is_iqdio_q; 563 unsigned int is_thinint_q; 564 565 /* bit 0 means queue 0, bit 1 means queue 1, ... */ 566 unsigned int mask; 567 unsigned int q_no; 568 569 qdio_handler_t (*handler); 570 571 /* points to the next buffer to be checked for having 572 * been processed by the card (outbound) 573 * or to the next buffer the program should check for (inbound) */ 574 volatile int first_to_check; 575 /* and the last time it was: */ 576 volatile int last_move_ftc; 577 578 atomic_t number_of_buffers_used; 579 atomic_t polling; 580 581 unsigned int siga_in; 582 unsigned int siga_out; 583 unsigned int siga_sync; 584 unsigned int siga_sync_done_on_thinints; 585 unsigned int siga_sync_done_on_outb_tis; 586 unsigned int hydra_gives_outbound_pcis; 587 588 /* used to save beginning position when calling dd_handlers */ 589 int first_element_to_kick; 590 591 atomic_t use_count; 592 atomic_t is_in_shutdown; 593 594 void *irq_ptr; 595 596 #ifdef QDIO_USE_TIMERS_FOR_POLLING 597 struct timer_list timer; 598 atomic_t timer_already_set; 599 spinlock_t timer_lock; 600 #else /* QDIO_USE_TIMERS_FOR_POLLING */ 601 struct tasklet_struct tasklet; 602 #endif /* QDIO_USE_TIMERS_FOR_POLLING */ 603 604 605 enum qdio_irq_states state; 606 607 /* used to store the error condition during a data transfer */ 608 unsigned int qdio_error; 609 unsigned int siga_error; 610 unsigned int error_status_flags; 611 612 /* list of interesting queues */ 613 volatile struct qdio_q *list_next; 614 volatile struct qdio_q *list_prev; 615 616 struct sl *sl; 617 volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q]; 618 619 struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q]; 620 621 unsigned long int_parm; 622 623 /*struct { 624 int in_bh_check_limit; 625 int threshold; 626 } threshold_classes[QDIO_STATS_CLASSES];*/ 627 628 struct { 629 /* inbound: the time to stop polling 630 outbound: the time to kick peer */ 631 int threshold; /* the real value */ 632 633 /* outbound: last time of do_QDIO 634 inbound: last time of noticing incoming data */ 635 /*__u64 last_transfer_times[QDIO_STATS_NUMBER]; 636 int last_transfer_index; */ 637 638 __u64 last_transfer_time; 639 __u64 busy_start; 640 } timing; 641 atomic_t busy_siga_counter; 642 unsigned int queue_type; 643 644 /* leave this member at the end. won't be cleared in qdio_fill_qs */ 645 struct slib *slib; /* a page is allocated under this pointer, 646 sl points into this page, offset PAGE_SIZE/2 647 (after slib) */ 648 } __attribute__ ((aligned(256))); 649 650 struct qdio_irq { 651 __u32 * volatile dev_st_chg_ind; 652 653 unsigned long int_parm; 654 struct subchannel_id schid; 655 656 unsigned int is_iqdio_irq; 657 unsigned int is_thinint_irq; 658 unsigned int hydra_gives_outbound_pcis; 659 unsigned int sync_done_on_outb_pcis; 660 661 /* QEBSM facility */ 662 unsigned int is_qebsm; 663 unsigned long sch_token; 664 665 enum qdio_irq_states state; 666 667 unsigned int no_input_qs; 668 unsigned int no_output_qs; 669 670 unsigned char qdioac; 671 672 struct ccw1 ccw; 673 674 struct ciw equeue; 675 struct ciw aqueue; 676 677 struct qib qib; 678 679 void (*original_int_handler) (struct ccw_device *, 680 unsigned long, struct irb *); 681 682 /* leave these four members together at the end. won't be cleared in qdio_fill_irq */ 683 struct qdr *qdr; 684 struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ]; 685 struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ]; 686 struct semaphore setting_up_sema; 687 }; 688 #endif 689