1 #ifndef _CIO_QDIO_H 2 #define _CIO_QDIO_H 3 4 #include <asm/page.h> 5 6 #include "schid.h" 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 */ 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 46 #define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY 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 8 134 #define QDIO_DBF_SETUP_PAGES 4 135 #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 256 144 #define QDIO_DBF_SBAL_PAGES 4 145 #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 156 #define QDIO_DBF_TRACE_PAGES 16 157 #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */ 158 #else /* CONFIG_QDIO_DEBUG */ 159 #define QDIO_DBF_TRACE_PAGES 4 160 #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 64 165 #define QDIO_DBF_SENSE_PAGES 2 166 #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 178 #define QDIO_DBF_SLSB_OUT_PAGES 256 179 #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 184 #define QDIO_DBF_SLSB_IN_PAGES 256 185 #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 */ 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_64BIT 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_64BIT 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 } 317 318 319 static inline int 320 do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2) 321 { 322 int cc; 323 324 #ifndef CONFIG_64BIT 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) 334 : "d" (schid), "d" (mask1), "d" (mask2) 335 : "cc", "0", "1", "2", "3" 336 ); 337 #else /* CONFIG_64BIT */ 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) 347 : "d" (schid), "d" (mask1), "d" (mask2) 348 : "cc", "0", "1", "2", "3" 349 ); 350 #endif /* CONFIG_64BIT */ 351 return cc; 352 } 353 354 static inline int 355 do_siga_input(struct subchannel_id schid, unsigned int mask) 356 { 357 int cc; 358 359 #ifndef CONFIG_64BIT 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) 368 : "d" (schid), "d" (mask) 369 : "cc", "0", "1", "2", "memory" 370 ); 371 #else /* CONFIG_64BIT */ 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) 380 : "d" (schid), "d" (mask) 381 : "cc", "0", "1", "2", "memory" 382 ); 383 #endif /* CONFIG_64BIT */ 384 385 return cc; 386 } 387 388 static inline int 389 do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb, 390 unsigned int fc) 391 { 392 int cc; 393 __u32 busy_bit; 394 395 #ifndef CONFIG_64BIT 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) 421 : "d" (schid), "d" (mask), 422 "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION) 423 : "cc", "0", "1", "2", "memory" 424 ); 425 #else /* CONFIG_64BIT */ 426 asm volatile ( 427 "llgfr 0,%5 \n\t" 428 "lgr 1,%2 \n\t" 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) 446 : "d" (schid), "d" (mask), 447 "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION), "d" (fc) 448 : "cc", "0", "1", "2", "memory" 449 ); 450 #endif /* CONFIG_64BIT */ 451 452 (*bb) = busy_bit; 453 return cc; 454 } 455 456 static inline unsigned long 457 do_clear_global_summary(void) 458 { 459 460 unsigned long time; 461 462 #ifndef CONFIG_64BIT 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_64BIT */ 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_64BIT */ 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_64BIT 544 #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x) 545 #else /* CONFIG_64BIT */ 546 #define QDIO_GET_ADDR(x) ((__u32)(long)x) 547 #endif /* CONFIG_64BIT */ 548 549 struct qdio_q { 550 volatile struct slsb slsb; 551 552 char unused[QDIO_MAX_BUFFERS_PER_Q]; 553 554 __u32 * dev_st_chg_ind; 555 556 int is_input_q; 557 struct subchannel_id schid; 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 */ 601 602 603 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 struct subchannel_id schid; 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; 658 659 /* QEBSM facility */ 660 unsigned int is_qebsm; 661 unsigned long sch_token; 662 663 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 687