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 #define QDIO_MINIMAL_BH_RELIEF_TIME 16 16 #define QDIO_TIMER_POLL_VALUE 1 17 #define IQDIO_TIMER_POLL_VALUE 1 18 19 /* 20 * unfortunately this can't be (QDIO_MAX_BUFFERS_PER_Q*4/3) or so -- as 21 * we never know, whether we'll get initiative again, e.g. to give the 22 * transmit skb's back to the stack, however the stack may be waiting for 23 * them... therefore we define 4 as threshold to start polling (which 24 * will stop as soon as the asynchronous queue catches up) 25 * btw, this only applies to the asynchronous HiperSockets queue 26 */ 27 #define IQDIO_FILL_LEVEL_TO_POLL 4 28 29 #define TIQDIO_THININT_ISC 3 30 #define TIQDIO_DELAY_TARGET 0 31 #define QDIO_BUSY_BIT_PATIENCE 100 /* in microsecs */ 32 #define QDIO_BUSY_BIT_GIVE_UP 10000000 /* 10 seconds */ 33 #define IQDIO_GLOBAL_LAPS 2 /* GLOBAL_LAPS are not used as we */ 34 #define IQDIO_GLOBAL_LAPS_INT 1 /* don't global summary */ 35 #define IQDIO_LOCAL_LAPS 4 36 #define IQDIO_LOCAL_LAPS_INT 1 37 #define IQDIO_GLOBAL_SUMMARY_CC_MASK 2 38 /*#define IQDIO_IQDC_INT_PARM 0x1234*/ 39 40 #define QDIO_Q_LAPS 5 41 42 #define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY 43 44 #define L2_CACHELINE_SIZE 256 45 #define INDICATORS_PER_CACHELINE (L2_CACHELINE_SIZE/sizeof(__u32)) 46 47 #define QDIO_PERF "qdio_perf" 48 49 /* must be a power of 2 */ 50 /*#define QDIO_STATS_NUMBER 4 51 52 #define QDIO_STATS_CLASSES 2 53 #define QDIO_STATS_COUNT_NEEDED 2*/ 54 55 #define QDIO_NO_USE_COUNT_TIMEOUT (1*HZ) /* wait for 1 sec on each q before 56 exiting without having use_count 57 of the queue to 0 */ 58 59 #define QDIO_ESTABLISH_TIMEOUT (1*HZ) 60 #define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10) 61 #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ) 62 #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ) 63 #define QDIO_FORCE_CHECK_TIMEOUT (10*HZ) 64 65 enum qdio_irq_states { 66 QDIO_IRQ_STATE_INACTIVE, 67 QDIO_IRQ_STATE_ESTABLISHED, 68 QDIO_IRQ_STATE_ACTIVE, 69 QDIO_IRQ_STATE_STOPPED, 70 QDIO_IRQ_STATE_CLEANUP, 71 QDIO_IRQ_STATE_ERR, 72 NR_QDIO_IRQ_STATES, 73 }; 74 75 /* used as intparm in do_IO: */ 76 #define QDIO_DOING_SENSEID 0 77 #define QDIO_DOING_ESTABLISH 1 78 #define QDIO_DOING_ACTIVATE 2 79 #define QDIO_DOING_CLEANUP 3 80 81 /************************* DEBUG FACILITY STUFF *********************/ 82 83 #define QDIO_DBF_HEX(ex,name,level,addr,len) \ 84 do { \ 85 if (ex) \ 86 debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \ 87 else \ 88 debug_event(qdio_dbf_##name,level,(void*)(addr),len); \ 89 } while (0) 90 #define QDIO_DBF_TEXT(ex,name,level,text) \ 91 do { \ 92 if (ex) \ 93 debug_text_exception(qdio_dbf_##name,level,text); \ 94 else \ 95 debug_text_event(qdio_dbf_##name,level,text); \ 96 } while (0) 97 98 99 #define QDIO_DBF_HEX0(ex,name,addr,len) QDIO_DBF_HEX(ex,name,0,addr,len) 100 #define QDIO_DBF_HEX1(ex,name,addr,len) QDIO_DBF_HEX(ex,name,1,addr,len) 101 #define QDIO_DBF_HEX2(ex,name,addr,len) QDIO_DBF_HEX(ex,name,2,addr,len) 102 #ifdef CONFIG_QDIO_DEBUG 103 #define QDIO_DBF_HEX3(ex,name,addr,len) QDIO_DBF_HEX(ex,name,3,addr,len) 104 #define QDIO_DBF_HEX4(ex,name,addr,len) QDIO_DBF_HEX(ex,name,4,addr,len) 105 #define QDIO_DBF_HEX5(ex,name,addr,len) QDIO_DBF_HEX(ex,name,5,addr,len) 106 #define QDIO_DBF_HEX6(ex,name,addr,len) QDIO_DBF_HEX(ex,name,6,addr,len) 107 #else /* CONFIG_QDIO_DEBUG */ 108 #define QDIO_DBF_HEX3(ex,name,addr,len) do {} while (0) 109 #define QDIO_DBF_HEX4(ex,name,addr,len) do {} while (0) 110 #define QDIO_DBF_HEX5(ex,name,addr,len) do {} while (0) 111 #define QDIO_DBF_HEX6(ex,name,addr,len) do {} while (0) 112 #endif /* CONFIG_QDIO_DEBUG */ 113 114 #define QDIO_DBF_TEXT0(ex,name,text) QDIO_DBF_TEXT(ex,name,0,text) 115 #define QDIO_DBF_TEXT1(ex,name,text) QDIO_DBF_TEXT(ex,name,1,text) 116 #define QDIO_DBF_TEXT2(ex,name,text) QDIO_DBF_TEXT(ex,name,2,text) 117 #ifdef CONFIG_QDIO_DEBUG 118 #define QDIO_DBF_TEXT3(ex,name,text) QDIO_DBF_TEXT(ex,name,3,text) 119 #define QDIO_DBF_TEXT4(ex,name,text) QDIO_DBF_TEXT(ex,name,4,text) 120 #define QDIO_DBF_TEXT5(ex,name,text) QDIO_DBF_TEXT(ex,name,5,text) 121 #define QDIO_DBF_TEXT6(ex,name,text) QDIO_DBF_TEXT(ex,name,6,text) 122 #else /* CONFIG_QDIO_DEBUG */ 123 #define QDIO_DBF_TEXT3(ex,name,text) do {} while (0) 124 #define QDIO_DBF_TEXT4(ex,name,text) do {} while (0) 125 #define QDIO_DBF_TEXT5(ex,name,text) do {} while (0) 126 #define QDIO_DBF_TEXT6(ex,name,text) do {} while (0) 127 #endif /* CONFIG_QDIO_DEBUG */ 128 129 #define QDIO_DBF_SETUP_NAME "qdio_setup" 130 #define QDIO_DBF_SETUP_LEN 8 131 #define QDIO_DBF_SETUP_PAGES 4 132 #define QDIO_DBF_SETUP_NR_AREAS 1 133 #ifdef CONFIG_QDIO_DEBUG 134 #define QDIO_DBF_SETUP_LEVEL 6 135 #else /* CONFIG_QDIO_DEBUG */ 136 #define QDIO_DBF_SETUP_LEVEL 2 137 #endif /* CONFIG_QDIO_DEBUG */ 138 139 #define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */ 140 #define QDIO_DBF_SBAL_LEN 256 141 #define QDIO_DBF_SBAL_PAGES 4 142 #define QDIO_DBF_SBAL_NR_AREAS 2 143 #ifdef CONFIG_QDIO_DEBUG 144 #define QDIO_DBF_SBAL_LEVEL 6 145 #else /* CONFIG_QDIO_DEBUG */ 146 #define QDIO_DBF_SBAL_LEVEL 2 147 #endif /* CONFIG_QDIO_DEBUG */ 148 149 #define QDIO_DBF_TRACE_NAME "qdio_trace" 150 #define QDIO_DBF_TRACE_LEN 8 151 #define QDIO_DBF_TRACE_NR_AREAS 2 152 #ifdef CONFIG_QDIO_DEBUG 153 #define QDIO_DBF_TRACE_PAGES 16 154 #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */ 155 #else /* CONFIG_QDIO_DEBUG */ 156 #define QDIO_DBF_TRACE_PAGES 4 157 #define QDIO_DBF_TRACE_LEVEL 2 158 #endif /* CONFIG_QDIO_DEBUG */ 159 160 #define QDIO_DBF_SENSE_NAME "qdio_sense" 161 #define QDIO_DBF_SENSE_LEN 64 162 #define QDIO_DBF_SENSE_PAGES 2 163 #define QDIO_DBF_SENSE_NR_AREAS 1 164 #ifdef CONFIG_QDIO_DEBUG 165 #define QDIO_DBF_SENSE_LEVEL 6 166 #else /* CONFIG_QDIO_DEBUG */ 167 #define QDIO_DBF_SENSE_LEVEL 2 168 #endif /* CONFIG_QDIO_DEBUG */ 169 170 #ifdef CONFIG_QDIO_DEBUG 171 #define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT 172 173 #define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out" 174 #define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q 175 #define QDIO_DBF_SLSB_OUT_PAGES 256 176 #define QDIO_DBF_SLSB_OUT_NR_AREAS 1 177 #define QDIO_DBF_SLSB_OUT_LEVEL 6 178 179 #define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in" 180 #define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q 181 #define QDIO_DBF_SLSB_IN_PAGES 256 182 #define QDIO_DBF_SLSB_IN_NR_AREAS 1 183 #define QDIO_DBF_SLSB_IN_LEVEL 6 184 #endif /* CONFIG_QDIO_DEBUG */ 185 186 #define QDIO_PRINTK_HEADER QDIO_NAME ": " 187 188 #if QDIO_VERBOSE_LEVEL>8 189 #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x) 190 #else 191 #define QDIO_PRINT_STUPID(x...) do { } while (0) 192 #endif 193 194 #if QDIO_VERBOSE_LEVEL>7 195 #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x) 196 #else 197 #define QDIO_PRINT_ALL(x...) do { } while (0) 198 #endif 199 200 #if QDIO_VERBOSE_LEVEL>6 201 #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x) 202 #else 203 #define QDIO_PRINT_INFO(x...) do { } while (0) 204 #endif 205 206 #if QDIO_VERBOSE_LEVEL>5 207 #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x) 208 #else 209 #define QDIO_PRINT_WARN(x...) do { } while (0) 210 #endif 211 212 #if QDIO_VERBOSE_LEVEL>4 213 #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x) 214 #else 215 #define QDIO_PRINT_ERR(x...) do { } while (0) 216 #endif 217 218 #if QDIO_VERBOSE_LEVEL>3 219 #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x) 220 #else 221 #define QDIO_PRINT_CRIT(x...) do { } while (0) 222 #endif 223 224 #if QDIO_VERBOSE_LEVEL>2 225 #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x) 226 #else 227 #define QDIO_PRINT_ALERT(x...) do { } while (0) 228 #endif 229 230 #if QDIO_VERBOSE_LEVEL>1 231 #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x) 232 #else 233 #define QDIO_PRINT_EMERG(x...) do { } while (0) 234 #endif 235 236 #define QDIO_HEXDUMP16(importance,header,ptr) \ 237 QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \ 238 "%02x %02x %02x %02x %02x %02x %02x %02x " \ 239 "%02x %02x %02x %02x\n",*(((char*)ptr)), \ 240 *(((char*)ptr)+1),*(((char*)ptr)+2), \ 241 *(((char*)ptr)+3),*(((char*)ptr)+4), \ 242 *(((char*)ptr)+5),*(((char*)ptr)+6), \ 243 *(((char*)ptr)+7),*(((char*)ptr)+8), \ 244 *(((char*)ptr)+9),*(((char*)ptr)+10), \ 245 *(((char*)ptr)+11),*(((char*)ptr)+12), \ 246 *(((char*)ptr)+13),*(((char*)ptr)+14), \ 247 *(((char*)ptr)+15)); \ 248 QDIO_PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ 249 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ 250 *(((char*)ptr)+16),*(((char*)ptr)+17), \ 251 *(((char*)ptr)+18),*(((char*)ptr)+19), \ 252 *(((char*)ptr)+20),*(((char*)ptr)+21), \ 253 *(((char*)ptr)+22),*(((char*)ptr)+23), \ 254 *(((char*)ptr)+24),*(((char*)ptr)+25), \ 255 *(((char*)ptr)+26),*(((char*)ptr)+27), \ 256 *(((char*)ptr)+28),*(((char*)ptr)+29), \ 257 *(((char*)ptr)+30),*(((char*)ptr)+31)); 258 259 /****************** END OF DEBUG FACILITY STUFF *********************/ 260 261 /* 262 * Some instructions as assembly 263 */ 264 265 static inline int 266 do_sqbs(unsigned long sch, unsigned char state, int queue, 267 unsigned int *start, unsigned int *count) 268 { 269 #ifdef CONFIG_64BIT 270 register unsigned long _ccq asm ("0") = *count; 271 register unsigned long _sch asm ("1") = sch; 272 unsigned long _queuestart = ((unsigned long)queue << 32) | *start; 273 274 asm volatile( 275 " .insn rsy,0xeb000000008A,%1,0,0(%2)" 276 : "+d" (_ccq), "+d" (_queuestart) 277 : "d" ((unsigned long)state), "d" (_sch) 278 : "memory", "cc"); 279 *count = _ccq & 0xff; 280 *start = _queuestart & 0xff; 281 282 return (_ccq >> 32) & 0xff; 283 #else 284 return 0; 285 #endif 286 } 287 288 static inline int 289 do_eqbs(unsigned long sch, unsigned char *state, int queue, 290 unsigned int *start, unsigned int *count) 291 { 292 #ifdef CONFIG_64BIT 293 register unsigned long _ccq asm ("0") = *count; 294 register unsigned long _sch asm ("1") = sch; 295 unsigned long _queuestart = ((unsigned long)queue << 32) | *start; 296 unsigned long _state = 0; 297 298 asm volatile( 299 " .insn rrf,0xB99c0000,%1,%2,0,0" 300 : "+d" (_ccq), "+d" (_queuestart), "+d" (_state) 301 : "d" (_sch) 302 : "memory", "cc" ); 303 *count = _ccq & 0xff; 304 *start = _queuestart & 0xff; 305 *state = _state & 0xff; 306 307 return (_ccq >> 32) & 0xff; 308 #else 309 return 0; 310 #endif 311 } 312 313 314 static inline int 315 do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2) 316 { 317 register unsigned long reg0 asm ("0") = 2; 318 register struct subchannel_id reg1 asm ("1") = schid; 319 register unsigned long reg2 asm ("2") = mask1; 320 register unsigned long reg3 asm ("3") = mask2; 321 int cc; 322 323 asm volatile( 324 " siga 0\n" 325 " ipm %0\n" 326 " srl %0,28\n" 327 : "=d" (cc) 328 : "d" (reg0), "d" (reg1), "d" (reg2), "d" (reg3) : "cc"); 329 return cc; 330 } 331 332 static inline int 333 do_siga_input(struct subchannel_id schid, unsigned int mask) 334 { 335 register unsigned long reg0 asm ("0") = 1; 336 register struct subchannel_id reg1 asm ("1") = schid; 337 register unsigned long reg2 asm ("2") = mask; 338 int cc; 339 340 asm volatile( 341 " siga 0\n" 342 " ipm %0\n" 343 " srl %0,28\n" 344 : "=d" (cc) 345 : "d" (reg0), "d" (reg1), "d" (reg2) : "cc", "memory"); 346 return cc; 347 } 348 349 static inline int 350 do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb, 351 unsigned int fc) 352 { 353 register unsigned long __fc asm("0") = fc; 354 register unsigned long __schid asm("1") = schid; 355 register unsigned long __mask asm("2") = mask; 356 int cc; 357 358 asm volatile( 359 " siga 0\n" 360 "0: ipm %0\n" 361 " srl %0,28\n" 362 "1:\n" 363 EX_TABLE(0b,1b) 364 : "=d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask) 365 : "0" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION) 366 : "cc", "memory"); 367 (*bb) = ((unsigned int) __fc) >> 31; 368 return cc; 369 } 370 371 static inline unsigned long 372 do_clear_global_summary(void) 373 { 374 register unsigned long __fn asm("1") = 3; 375 register unsigned long __tmp asm("2"); 376 register unsigned long __time asm("3"); 377 378 asm volatile( 379 " .insn rre,0xb2650000,2,0" 380 : "+d" (__fn), "=d" (__tmp), "=d" (__time)); 381 return __time; 382 } 383 384 /* 385 * QDIO device commands returned by extended Sense-ID 386 */ 387 #define DEFAULT_ESTABLISH_QS_CMD 0x1b 388 #define DEFAULT_ESTABLISH_QS_COUNT 0x1000 389 #define DEFAULT_ACTIVATE_QS_CMD 0x1f 390 #define DEFAULT_ACTIVATE_QS_COUNT 0 391 392 /* 393 * additional CIWs returned by extended Sense-ID 394 */ 395 #define CIW_TYPE_EQUEUE 0x3 /* establish QDIO queues */ 396 #define CIW_TYPE_AQUEUE 0x4 /* activate QDIO queues */ 397 398 #define QDIO_CHSC_RESPONSE_CODE_OK 1 399 /* flags for st qdio sch data */ 400 #define CHSC_FLAG_QDIO_CAPABILITY 0x80 401 #define CHSC_FLAG_VALIDITY 0x40 402 403 #define CHSC_FLAG_SIGA_INPUT_NECESSARY 0x40 404 #define CHSC_FLAG_SIGA_OUTPUT_NECESSARY 0x20 405 #define CHSC_FLAG_SIGA_SYNC_NECESSARY 0x10 406 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08 407 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04 408 409 struct qdio_perf_stats { 410 #ifdef CONFIG_64BIT 411 atomic64_t tl_runs; 412 atomic64_t outbound_tl_runs; 413 atomic64_t outbound_tl_runs_resched; 414 atomic64_t inbound_tl_runs; 415 atomic64_t inbound_tl_runs_resched; 416 atomic64_t inbound_thin_tl_runs; 417 atomic64_t inbound_thin_tl_runs_resched; 418 419 atomic64_t siga_outs; 420 atomic64_t siga_ins; 421 atomic64_t siga_syncs; 422 atomic64_t pcis; 423 atomic64_t thinints; 424 atomic64_t fast_reqs; 425 426 atomic64_t outbound_cnt; 427 atomic64_t inbound_cnt; 428 #else /* CONFIG_64BIT */ 429 atomic_t tl_runs; 430 atomic_t outbound_tl_runs; 431 atomic_t outbound_tl_runs_resched; 432 atomic_t inbound_tl_runs; 433 atomic_t inbound_tl_runs_resched; 434 atomic_t inbound_thin_tl_runs; 435 atomic_t inbound_thin_tl_runs_resched; 436 437 atomic_t siga_outs; 438 atomic_t siga_ins; 439 atomic_t siga_syncs; 440 atomic_t pcis; 441 atomic_t thinints; 442 atomic_t fast_reqs; 443 444 atomic_t outbound_cnt; 445 atomic_t inbound_cnt; 446 #endif /* CONFIG_64BIT */ 447 }; 448 449 /* unlikely as the later the better */ 450 #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q) 451 #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \ 452 qdio_siga_sync(q,~0U,~0U) 453 #define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \ 454 qdio_siga_sync(q,~0U,0) 455 456 #define NOW qdio_get_micros() 457 #define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW 458 #define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time) 459 #define SAVE_FRONTIER(q,val) q->last_move_ftc=val 460 #define GET_SAVED_FRONTIER(q) (q->last_move_ftc) 461 462 #define MY_MODULE_STRING(x) #x 463 464 #ifdef CONFIG_64BIT 465 #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x) 466 #else /* CONFIG_64BIT */ 467 #define QDIO_GET_ADDR(x) ((__u32)(long)x) 468 #endif /* CONFIG_64BIT */ 469 470 struct qdio_q { 471 volatile struct slsb slsb; 472 473 char unused[QDIO_MAX_BUFFERS_PER_Q]; 474 475 __u32 * dev_st_chg_ind; 476 477 int is_input_q; 478 struct subchannel_id schid; 479 struct ccw_device *cdev; 480 481 unsigned int is_iqdio_q; 482 unsigned int is_thinint_q; 483 484 /* bit 0 means queue 0, bit 1 means queue 1, ... */ 485 unsigned int mask; 486 unsigned int q_no; 487 488 qdio_handler_t (*handler); 489 490 /* points to the next buffer to be checked for having 491 * been processed by the card (outbound) 492 * or to the next buffer the program should check for (inbound) */ 493 volatile int first_to_check; 494 /* and the last time it was: */ 495 volatile int last_move_ftc; 496 497 atomic_t number_of_buffers_used; 498 atomic_t polling; 499 500 unsigned int siga_in; 501 unsigned int siga_out; 502 unsigned int siga_sync; 503 unsigned int siga_sync_done_on_thinints; 504 unsigned int siga_sync_done_on_outb_tis; 505 unsigned int hydra_gives_outbound_pcis; 506 507 /* used to save beginning position when calling dd_handlers */ 508 int first_element_to_kick; 509 510 atomic_t use_count; 511 atomic_t is_in_shutdown; 512 513 void *irq_ptr; 514 515 struct timer_list timer; 516 #ifdef QDIO_USE_TIMERS_FOR_POLLING 517 atomic_t timer_already_set; 518 spinlock_t timer_lock; 519 #else /* QDIO_USE_TIMERS_FOR_POLLING */ 520 struct tasklet_struct tasklet; 521 #endif /* QDIO_USE_TIMERS_FOR_POLLING */ 522 523 524 enum qdio_irq_states state; 525 526 /* used to store the error condition during a data transfer */ 527 unsigned int qdio_error; 528 unsigned int siga_error; 529 unsigned int error_status_flags; 530 531 /* list of interesting queues */ 532 volatile struct qdio_q *list_next; 533 volatile struct qdio_q *list_prev; 534 535 struct sl *sl; 536 volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q]; 537 538 struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q]; 539 540 unsigned long int_parm; 541 542 /*struct { 543 int in_bh_check_limit; 544 int threshold; 545 } threshold_classes[QDIO_STATS_CLASSES];*/ 546 547 struct { 548 /* inbound: the time to stop polling 549 outbound: the time to kick peer */ 550 int threshold; /* the real value */ 551 552 /* outbound: last time of do_QDIO 553 inbound: last time of noticing incoming data */ 554 /*__u64 last_transfer_times[QDIO_STATS_NUMBER]; 555 int last_transfer_index; */ 556 557 __u64 last_transfer_time; 558 __u64 busy_start; 559 } timing; 560 atomic_t busy_siga_counter; 561 unsigned int queue_type; 562 unsigned int is_pci_out; 563 564 /* leave this member at the end. won't be cleared in qdio_fill_qs */ 565 struct slib *slib; /* a page is allocated under this pointer, 566 sl points into this page, offset PAGE_SIZE/2 567 (after slib) */ 568 } __attribute__ ((aligned(256))); 569 570 struct qdio_irq { 571 __u32 * volatile dev_st_chg_ind; 572 573 unsigned long int_parm; 574 struct subchannel_id schid; 575 576 unsigned int is_iqdio_irq; 577 unsigned int is_thinint_irq; 578 unsigned int hydra_gives_outbound_pcis; 579 unsigned int sync_done_on_outb_pcis; 580 581 /* QEBSM facility */ 582 unsigned int is_qebsm; 583 unsigned long sch_token; 584 585 enum qdio_irq_states state; 586 587 unsigned int no_input_qs; 588 unsigned int no_output_qs; 589 590 unsigned char qdioac; 591 592 struct ccw1 ccw; 593 594 struct ciw equeue; 595 struct ciw aqueue; 596 597 struct qib qib; 598 599 void (*original_int_handler) (struct ccw_device *, 600 unsigned long, struct irb *); 601 602 /* leave these four members together at the end. won't be cleared in qdio_fill_irq */ 603 struct qdr *qdr; 604 struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ]; 605 struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ]; 606 struct semaphore setting_up_sema; 607 }; 608 #endif 609