drivers/s390/cio/qdio.h

   1 #ifndef _CIO_QDIO_H
   2 #define _CIO_QDIO_H
   3
   4 #define VERSION_CIO_QDIO_H "$Revision: 1.26 $"
   5
   6 #ifdef CONFIG_QDIO_DEBUG
   7 #define QDIO_VERBOSE_LEVEL 9
   8 #else /* CONFIG_QDIO_DEBUG */
   9 #define QDIO_VERBOSE_LEVEL 5
  10 #endif /* CONFIG_QDIO_DEBUG */
  11
  12 #define QDIO_USE_PROCESSING_STATE
  13
  14 #ifdef CONFIG_QDIO_PERF_STATS
  15 #define QDIO_PERFORMANCE_STATS
  16 #endif /* CONFIG_QDIO_PERF_STATS */
  17
  18 #define QDIO_MINIMAL_BH_RELIEF_TIME 16
  19 #define QDIO_TIMER_POLL_VALUE 1
  20 #define IQDIO_TIMER_POLL_VALUE 1
  21
  22 /*
  23  * unfortunately this can't be (QDIO_MAX_BUFFERS_PER_Q*4/3) or so -- as
  24  * we never know, whether we'll get initiative again, e.g. to give the
  25  * transmit skb's back to the stack, however the stack may be waiting for
  26  * them... therefore we define 4 as threshold to start polling (which
  27  * will stop as soon as the asynchronous queue catches up)
  28  * btw, this only applies to the asynchronous HiperSockets queue
  29  */
  30 #define IQDIO_FILL_LEVEL_TO_POLL 4
  31
  32 #define TIQDIO_THININT_ISC 3
  33 #define TIQDIO_DELAY_TARGET 0
  34 #define QDIO_BUSY_BIT_PATIENCE 100 /* in microsecs */
  35 #define QDIO_BUSY_BIT_GIVE_UP 10000000 /* 10 seconds */
  36 #define IQDIO_GLOBAL_LAPS 2 /* GLOBAL_LAPS are not used as we */
  37 #define IQDIO_GLOBAL_LAPS_INT 1 /* don't global summary */
  38 #define IQDIO_LOCAL_LAPS 4
  39 #define IQDIO_LOCAL_LAPS_INT 1
  40 #define IQDIO_GLOBAL_SUMMARY_CC_MASK 2
  41 /*#define IQDIO_IQDC_INT_PARM 0x1234*/
  42
  43 #define QDIO_Q_LAPS 5
  44
  45 #define QDIO_STORAGE_KEY 0
  46
  47 #define L2_CACHELINE_SIZE 256
  48 #define INDICATORS_PER_CACHELINE (L2_CACHELINE_SIZE/sizeof(__u32))
  49
  50 #define QDIO_PERF "qdio_perf"
  51
  52 /* must be a power of 2 */
  53 /*#define QDIO_STATS_NUMBER 4
  54
  55 #define QDIO_STATS_CLASSES 2
  56 #define QDIO_STATS_COUNT_NEEDED 2*/
  57
  58 #define QDIO_NO_USE_COUNT_TIMEOUT (1*HZ) /* wait for 1 sec on each q before
  59                                             exiting without having use_count
  60                                             of the queue to 0 */
  61
  62 #define QDIO_ESTABLISH_TIMEOUT (1*HZ)
  63 #define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10)
  64 #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ)
  65 #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
  66
  67 enum qdio_irq_states {
  68         QDIO_IRQ_STATE_INACTIVE,
  69         QDIO_IRQ_STATE_ESTABLISHED,
  70         QDIO_IRQ_STATE_ACTIVE,
  71         QDIO_IRQ_STATE_STOPPED,
  72         QDIO_IRQ_STATE_CLEANUP,
  73         QDIO_IRQ_STATE_ERR,
  74         NR_QDIO_IRQ_STATES,
  75 };
  76
  77 /* used as intparm in do_IO: */
  78 #define QDIO_DOING_SENSEID 0
  79 #define QDIO_DOING_ESTABLISH 1
  80 #define QDIO_DOING_ACTIVATE 2
  81 #define QDIO_DOING_CLEANUP 3
  82
  83 /************************* DEBUG FACILITY STUFF *********************/
  84
  85 #define QDIO_DBF_HEX(ex,name,level,addr,len) \
  86         do { \
  87         if (ex) \
  88                 debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \
  89         else \
  90                 debug_event(qdio_dbf_##name,level,(void*)(addr),len); \
  91         } while (0)
  92 #define QDIO_DBF_TEXT(ex,name,level,text) \
  93         do { \
  94         if (ex) \
  95                 debug_text_exception(qdio_dbf_##name,level,text); \
  96         else \
  97                 debug_text_event(qdio_dbf_##name,level,text); \
  98         } while (0)
  99
 100
 101 #define QDIO_DBF_HEX0(ex,name,addr,len) QDIO_DBF_HEX(ex,name,0,addr,len)
 102 #define QDIO_DBF_HEX1(ex,name,addr,len) QDIO_DBF_HEX(ex,name,1,addr,len)
 103 #define QDIO_DBF_HEX2(ex,name,addr,len) QDIO_DBF_HEX(ex,name,2,addr,len)
 104 #ifdef CONFIG_QDIO_DEBUG
 105 #define QDIO_DBF_HEX3(ex,name,addr,len) QDIO_DBF_HEX(ex,name,3,addr,len)
 106 #define QDIO_DBF_HEX4(ex,name,addr,len) QDIO_DBF_HEX(ex,name,4,addr,len)
 107 #define QDIO_DBF_HEX5(ex,name,addr,len) QDIO_DBF_HEX(ex,name,5,addr,len)
 108 #define QDIO_DBF_HEX6(ex,name,addr,len) QDIO_DBF_HEX(ex,name,6,addr,len)
 109 #else /* CONFIG_QDIO_DEBUG */
 110 #define QDIO_DBF_HEX3(ex,name,addr,len) do {} while (0)
 111 #define QDIO_DBF_HEX4(ex,name,addr,len) do {} while (0)
 112 #define QDIO_DBF_HEX5(ex,name,addr,len) do {} while (0)
 113 #define QDIO_DBF_HEX6(ex,name,addr,len) do {} while (0)
 114 #endif /* CONFIG_QDIO_DEBUG */
 115
 116 #define QDIO_DBF_TEXT0(ex,name,text) QDIO_DBF_TEXT(ex,name,0,text)
 117 #define QDIO_DBF_TEXT1(ex,name,text) QDIO_DBF_TEXT(ex,name,1,text)
 118 #define QDIO_DBF_TEXT2(ex,name,text) QDIO_DBF_TEXT(ex,name,2,text)
 119 #ifdef CONFIG_QDIO_DEBUG
 120 #define QDIO_DBF_TEXT3(ex,name,text) QDIO_DBF_TEXT(ex,name,3,text)
 121 #define QDIO_DBF_TEXT4(ex,name,text) QDIO_DBF_TEXT(ex,name,4,text)
 122 #define QDIO_DBF_TEXT5(ex,name,text) QDIO_DBF_TEXT(ex,name,5,text)
 123 #define QDIO_DBF_TEXT6(ex,name,text) QDIO_DBF_TEXT(ex,name,6,text)
 124 #else /* CONFIG_QDIO_DEBUG */
 125 #define QDIO_DBF_TEXT3(ex,name,text) do {} while (0)
 126 #define QDIO_DBF_TEXT4(ex,name,text) do {} while (0)
 127 #define QDIO_DBF_TEXT5(ex,name,text) do {} while (0)
 128 #define QDIO_DBF_TEXT6(ex,name,text) do {} while (0)
 129 #endif /* CONFIG_QDIO_DEBUG */
 130
 131 #define QDIO_DBF_SETUP_NAME "qdio_setup"
 132 #define QDIO_DBF_SETUP_LEN 8
 133 #define QDIO_DBF_SETUP_INDEX 2
 134 #define QDIO_DBF_SETUP_NR_AREAS 1
 135 #ifdef CONFIG_QDIO_DEBUG
 136 #define QDIO_DBF_SETUP_LEVEL 6
 137 #else /* CONFIG_QDIO_DEBUG */
 138 #define QDIO_DBF_SETUP_LEVEL 2
 139 #endif /* CONFIG_QDIO_DEBUG */
 140
 141 #define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */
 142 #define QDIO_DBF_SBAL_LEN 256
 143 #define QDIO_DBF_SBAL_INDEX 2
 144 #define QDIO_DBF_SBAL_NR_AREAS 2
 145 #ifdef CONFIG_QDIO_DEBUG
 146 #define QDIO_DBF_SBAL_LEVEL 6
 147 #else /* CONFIG_QDIO_DEBUG */
 148 #define QDIO_DBF_SBAL_LEVEL 2
 149 #endif /* CONFIG_QDIO_DEBUG */
 150
 151 #define QDIO_DBF_TRACE_NAME "qdio_trace"
 152 #define QDIO_DBF_TRACE_LEN 8
 153 #define QDIO_DBF_TRACE_NR_AREAS 2
 154 #ifdef CONFIG_QDIO_DEBUG
 155 #define QDIO_DBF_TRACE_INDEX 4
 156 #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */
 157 #else /* CONFIG_QDIO_DEBUG */
 158 #define QDIO_DBF_TRACE_INDEX 2
 159 #define QDIO_DBF_TRACE_LEVEL 2
 160 #endif /* CONFIG_QDIO_DEBUG */
 161
 162 #define QDIO_DBF_SENSE_NAME "qdio_sense"
 163 #define QDIO_DBF_SENSE_LEN 64
 164 #define QDIO_DBF_SENSE_INDEX 1
 165 #define QDIO_DBF_SENSE_NR_AREAS 1
 166 #ifdef CONFIG_QDIO_DEBUG
 167 #define QDIO_DBF_SENSE_LEVEL 6
 168 #else /* CONFIG_QDIO_DEBUG */
 169 #define QDIO_DBF_SENSE_LEVEL 2
 170 #endif /* CONFIG_QDIO_DEBUG */
 171
 172 #ifdef CONFIG_QDIO_DEBUG
 173 #define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT
 174
 175 #define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out"
 176 #define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q
 177 #define QDIO_DBF_SLSB_OUT_INDEX 8
 178 #define QDIO_DBF_SLSB_OUT_NR_AREAS 1
 179 #define QDIO_DBF_SLSB_OUT_LEVEL 6
 180
 181 #define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in"
 182 #define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q
 183 #define QDIO_DBF_SLSB_IN_INDEX 8
 184 #define QDIO_DBF_SLSB_IN_NR_AREAS 1
 185 #define QDIO_DBF_SLSB_IN_LEVEL 6
 186 #endif /* CONFIG_QDIO_DEBUG */
 187
 188 #define QDIO_PRINTK_HEADER QDIO_NAME ": "
 189
 190 #if QDIO_VERBOSE_LEVEL>8
 191 #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x)
 192 #else
 193 #define QDIO_PRINT_STUPID(x...)
 194 #endif
 195
 196 #if QDIO_VERBOSE_LEVEL>7
 197 #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x)
 198 #else
 199 #define QDIO_PRINT_ALL(x...)
 200 #endif
 201
 202 #if QDIO_VERBOSE_LEVEL>6
 203 #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x)
 204 #else
 205 #define QDIO_PRINT_INFO(x...)
 206 #endif
 207
 208 #if QDIO_VERBOSE_LEVEL>5
 209 #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x)
 210 #else
 211 #define QDIO_PRINT_WARN(x...)
 212 #endif
 213
 214 #if QDIO_VERBOSE_LEVEL>4
 215 #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x)
 216 #else
 217 #define QDIO_PRINT_ERR(x...)
 218 #endif
 219
 220 #if QDIO_VERBOSE_LEVEL>3
 221 #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x)
 222 #else
 223 #define QDIO_PRINT_CRIT(x...)
 224 #endif
 225
 226 #if QDIO_VERBOSE_LEVEL>2
 227 #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x)
 228 #else
 229 #define QDIO_PRINT_ALERT(x...)
 230 #endif
 231
 232 #if QDIO_VERBOSE_LEVEL>1
 233 #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x)
 234 #else
 235 #define QDIO_PRINT_EMERG(x...)
 236 #endif
 237
 238 #define HEXDUMP16(importance,header,ptr) \
 239 QDIO_PRINT_##importance(header "%02x %02x %02x %02x  " \
 240                         "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
 241                         "%02x %02x %02x %02x\n",*(((char*)ptr)), \
 242                         *(((char*)ptr)+1),*(((char*)ptr)+2), \
 243                         *(((char*)ptr)+3),*(((char*)ptr)+4), \
 244                         *(((char*)ptr)+5),*(((char*)ptr)+6), \
 245                         *(((char*)ptr)+7),*(((char*)ptr)+8), \
 246                         *(((char*)ptr)+9),*(((char*)ptr)+10), \
 247                         *(((char*)ptr)+11),*(((char*)ptr)+12), \
 248                         *(((char*)ptr)+13),*(((char*)ptr)+14), \
 249                         *(((char*)ptr)+15)); \
 250 QDIO_PRINT_##importance(header "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
 251                         "%02x %02x %02x %02x  %02x %02x %02x %02x\n", \
 252                         *(((char*)ptr)+16),*(((char*)ptr)+17), \
 253                         *(((char*)ptr)+18),*(((char*)ptr)+19), \
 254                         *(((char*)ptr)+20),*(((char*)ptr)+21), \
 255                         *(((char*)ptr)+22),*(((char*)ptr)+23), \
 256                         *(((char*)ptr)+24),*(((char*)ptr)+25), \
 257                         *(((char*)ptr)+26),*(((char*)ptr)+27), \
 258                         *(((char*)ptr)+28),*(((char*)ptr)+29), \
 259                         *(((char*)ptr)+30),*(((char*)ptr)+31));
 260
 261 /****************** END OF DEBUG FACILITY STUFF *********************/
 262
 263 /*
 264  * Some instructions as assembly
 265  */
 266 extern __inline__ int
 267 do_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2)
 268 {
 269         int cc;
 270
 271 #ifndef CONFIG_ARCH_S390X
 272         asm volatile (
 273                 "lhi    0,2     \n\t"
 274                 "lr     1,%1    \n\t"
 275                 "lr     2,%2    \n\t"
 276                 "lr     3,%3    \n\t"
 277                 "siga   0       \n\t"
 278                 "ipm    %0      \n\t"
 279                 "srl    %0,28   \n\t"
 280                 : "=d" (cc)
 281                 : "d" (0x10000|irq), "d" (mask1), "d" (mask2)
 282                 : "cc", "0", "1", "2", "3"
 283                 );
 284 #else /* CONFIG_ARCH_S390X */
 285         asm volatile (
 286                 "lghi   0,2     \n\t"
 287                 "llgfr  1,%1    \n\t"
 288                 "llgfr  2,%2    \n\t"
 289                 "llgfr  3,%3    \n\t"
 290                 "siga   0       \n\t"
 291                 "ipm    %0      \n\t"
 292                 "srl    %0,28   \n\t"
 293                 : "=d" (cc)
 294                 : "d" (0x10000|irq), "d" (mask1), "d" (mask2)
 295                 : "cc", "0", "1", "2", "3"
 296                 );
 297 #endif /* CONFIG_ARCH_S390X */
 298         return cc;
 299 }
 300
 301 extern __inline__ int
 302 do_siga_input(unsigned int irq, unsigned int mask)
 303 {
 304         int cc;
 305
 306 #ifndef CONFIG_ARCH_S390X
 307         asm volatile (
 308                 "lhi    0,1     \n\t"
 309                 "lr     1,%1    \n\t"
 310                 "lr     2,%2    \n\t"
 311                 "siga   0       \n\t"
 312                 "ipm    %0      \n\t"
 313                 "srl    %0,28   \n\t"
 314                 : "=d" (cc)
 315                 : "d" (0x10000|irq), "d" (mask)
 316                 : "cc", "0", "1", "2", "memory"
 317                 );
 318 #else /* CONFIG_ARCH_S390X */
 319         asm volatile (
 320                 "lghi   0,1     \n\t"
 321                 "llgfr  1,%1    \n\t"
 322                 "llgfr  2,%2    \n\t"
 323                 "siga   0       \n\t"
 324                 "ipm    %0      \n\t"
 325                 "srl    %0,28   \n\t"
 326                 : "=d" (cc)
 327                 : "d" (0x10000|irq), "d" (mask)
 328                 : "cc", "0", "1", "2", "memory"
 329                 );
 330 #endif /* CONFIG_ARCH_S390X */
 331
 332         return cc;
 333 }
 334
 335 extern __inline__ int
 336 do_siga_output(unsigned long irq, unsigned long mask, __u32 *bb)
 337 {
 338         int cc;
 339         __u32 busy_bit;
 340
 341 #ifndef CONFIG_ARCH_S390X
 342         asm volatile (
 343                 "lhi    0,0     \n\t"
 344                 "lr     1,%2    \n\t"
 345                 "lr     2,%3    \n\t"
 346                 "siga   0       \n\t"
 347                 "0:"
 348                 "ipm    %0      \n\t"
 349                 "srl    %0,28   \n\t"
 350                 "srl    0,31    \n\t"
 351                 "lr     %1,0    \n\t"
 352                 "1:     \n\t"
 353                 ".section .fixup,\"ax\"\n\t"
 354                 "2:     \n\t"
 355                 "lhi    %0,%4   \n\t"
 356                 "bras   1,3f    \n\t"
 357                 ".long 1b       \n\t"
 358                 "3:     \n\t"
 359                 "l      1,0(1)  \n\t"
 360                 "br     1       \n\t"
 361                 ".previous      \n\t"
 362                 ".section __ex_table,\"a\"\n\t"
 363                 ".align 4       \n\t"
 364                 ".long  0b,2b   \n\t"
 365                 ".previous      \n\t"
 366                 : "=d" (cc), "=d" (busy_bit)
 367                 : "d" (0x10000|irq), "d" (mask),
 368                 "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
 369                 : "cc", "0", "1", "2", "memory"
 370                 );
 371 #else /* CONFIG_ARCH_S390X */
 372         asm volatile (
 373                 "lghi   0,0     \n\t"
 374                 "llgfr  1,%2    \n\t"
 375                 "llgfr  2,%3    \n\t"
 376                 "siga   0       \n\t"
 377                 "0:"
 378                 "ipm    %0      \n\t"
 379                 "srl    %0,28   \n\t"
 380                 "srl    0,31    \n\t"
 381                 "llgfr  %1,0    \n\t"
 382                 "1:     \n\t"
 383                 ".section .fixup,\"ax\"\n\t"
 384                 "lghi   %0,%4   \n\t"
 385                 "jg     1b      \n\t"
 386                 ".previous\n\t"
 387                 ".section __ex_table,\"a\"\n\t"
 388                 ".align 8       \n\t"
 389                 ".quad  0b,1b   \n\t"
 390                 ".previous      \n\t"
 391                 : "=d" (cc), "=d" (busy_bit)
 392                 : "d" (0x10000|irq), "d" (mask),
 393                 "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
 394                 : "cc", "0", "1", "2", "memory"
 395                 );
 396 #endif /* CONFIG_ARCH_S390X */
 397
 398         (*bb) = busy_bit;
 399         return cc;
 400 }
 401
 402 extern __inline__ unsigned long
 403 do_clear_global_summary(void)
 404 {
 405
 406         unsigned long time;
 407
 408 #ifndef CONFIG_ARCH_S390X
 409         asm volatile (
 410                 "lhi    1,3     \n\t"
 411                 ".insn  rre,0xb2650000,2,0      \n\t"
 412                 "lr     %0,3    \n\t"
 413                 : "=d" (time) : : "cc", "1", "2", "3"
 414                 );
 415 #else /* CONFIG_ARCH_S390X */
 416         asm volatile (
 417                 "lghi   1,3     \n\t"
 418                 ".insn  rre,0xb2650000,2,0      \n\t"
 419                 "lgr    %0,3    \n\t"
 420                 : "=d" (time) : : "cc", "1", "2", "3"
 421                 );
 422 #endif /* CONFIG_ARCH_S390X */
 423
 424         return time;
 425 }
 426
 427 /*
 428  * QDIO device commands returned by extended Sense-ID
 429  */
 430 #define DEFAULT_ESTABLISH_QS_CMD 0x1b
 431 #define DEFAULT_ESTABLISH_QS_COUNT 0x1000
 432 #define DEFAULT_ACTIVATE_QS_CMD 0x1f
 433 #define DEFAULT_ACTIVATE_QS_COUNT 0
 434
 435 /*
 436  * additional CIWs returned by extended Sense-ID
 437  */
 438 #define CIW_TYPE_EQUEUE 0x3       /* establish QDIO queues */
 439 #define CIW_TYPE_AQUEUE 0x4       /* activate QDIO queues */
 440
 441 #define QDIO_CHSC_RESPONSE_CODE_OK 1
 442 /* flags for st qdio sch data */
 443 #define CHSC_FLAG_QDIO_CAPABILITY 0x80
 444 #define CHSC_FLAG_VALIDITY 0x40
 445
 446 #define CHSC_FLAG_SIGA_INPUT_NECESSARY 0x40
 447 #define CHSC_FLAG_SIGA_OUTPUT_NECESSARY 0x20
 448 #define CHSC_FLAG_SIGA_SYNC_NECESSARY 0x10
 449 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08
 450 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04
 451
 452 #ifdef QDIO_PERFORMANCE_STATS
 453 struct qdio_perf_stats {
 454         unsigned int tl_runs;
 455
 456         unsigned int siga_outs;
 457         unsigned int siga_ins;
 458         unsigned int siga_syncs;
 459         unsigned int pcis;
 460         unsigned int thinints;
 461         unsigned int fast_reqs;
 462
 463         __u64 start_time_outbound;
 464         unsigned int outbound_cnt;
 465         unsigned int outbound_time;
 466         __u64 start_time_inbound;
 467         unsigned int inbound_cnt;
 468         unsigned int inbound_time;
 469 };
 470 #endif /* QDIO_PERFORMANCE_STATS */
 471
 472 #define atomic_swap(a,b) xchg((int*)a.counter,b)
 473
 474 /* unlikely as the later the better */
 475 #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q)
 476 #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \
 477         qdio_siga_sync(q,~0U,~0U)
 478 #define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \
 479         qdio_siga_sync(q,~0U,0)
 480
 481 #define NOW qdio_get_micros()
 482 #define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW
 483 #define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time)
 484 #define SAVE_FRONTIER(q,val) q->last_move_ftc=val
 485 #define GET_SAVED_FRONTIER(q) (q->last_move_ftc)
 486
 487 #define MY_MODULE_STRING(x) #x
 488
 489 #ifdef CONFIG_ARCH_S390X
 490 #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x)
 491 #else /* CONFIG_ARCH_S390X */
 492 #define QDIO_GET_ADDR(x) ((__u32)(long)x)
 493 #endif /* CONFIG_ARCH_S390X */
 494
 495 #ifdef CONFIG_QDIO_DEBUG
 496 #define set_slsb(x,y) \
 497   if(q->queue_type==QDIO_TRACE_QTYPE) { \
 498         if(q->is_input_q) { \
 499             QDIO_DBF_HEX2(0,slsb_in,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
 500         } else { \
 501             QDIO_DBF_HEX2(0,slsb_out,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
 502         } \
 503   } \
 504   qdio_set_slsb(x,y); \
 505   if(q->queue_type==QDIO_TRACE_QTYPE) { \
 506         if(q->is_input_q) { \
 507             QDIO_DBF_HEX2(0,slsb_in,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
 508         } else { \
 509             QDIO_DBF_HEX2(0,slsb_out,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
 510         } \
 511   }
 512 #else /* CONFIG_QDIO_DEBUG */
 513 #define set_slsb(x,y) qdio_set_slsb(x,y)
 514 #endif /* CONFIG_QDIO_DEBUG */
 515
 516 struct qdio_q {
 517         volatile struct slsb slsb;
 518
 519         char unused[QDIO_MAX_BUFFERS_PER_Q];
 520
 521         __u32 * volatile dev_st_chg_ind;
 522
 523         int is_input_q;
 524         int irq;
 525         struct ccw_device *cdev;
 526
 527         unsigned int is_iqdio_q;
 528         unsigned int is_thinint_q;
 529
 530         /* bit 0 means queue 0, bit 1 means queue 1, ... */
 531         unsigned int mask;
 532         unsigned int q_no;
 533
 534         qdio_handler_t (*handler);
 535
 536         /* points to the next buffer to be checked for having
 537          * been processed by the card (outbound)
 538          * or to the next buffer the program should check for (inbound) */
 539         volatile int first_to_check;
 540         /* and the last time it was: */
 541         volatile int last_move_ftc;
 542
 543         atomic_t number_of_buffers_used;
 544         atomic_t polling;
 545
 546         unsigned int siga_in;
 547         unsigned int siga_out;
 548         unsigned int siga_sync;
 549         unsigned int siga_sync_done_on_thinints;
 550         unsigned int siga_sync_done_on_outb_tis;
 551         unsigned int hydra_gives_outbound_pcis;
 552
 553         /* used to save beginning position when calling dd_handlers */
 554         int first_element_to_kick;
 555
 556         atomic_t use_count;
 557         atomic_t is_in_shutdown;
 558
 559         void *irq_ptr;
 560
 561 #ifdef QDIO_USE_TIMERS_FOR_POLLING
 562         struct timer_list timer;
 563         atomic_t timer_already_set;
 564         spinlock_t timer_lock;
 565 #else /* QDIO_USE_TIMERS_FOR_POLLING */
 566         struct tasklet_struct tasklet;
 567 #endif /* QDIO_USE_TIMERS_FOR_POLLING */
 568
 569         enum qdio_irq_states state;
 570
 571         /* used to store the error condition during a data transfer */
 572         unsigned int qdio_error;
 573         unsigned int siga_error;
 574         unsigned int error_status_flags;
 575
 576         /* list of interesting queues */
 577         volatile struct qdio_q *list_next;
 578         volatile struct qdio_q *list_prev;
 579
 580         struct sl *sl;
 581         volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q];
 582
 583         struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q];
 584
 585         unsigned long int_parm;
 586
 587         /*struct {
 588                 int in_bh_check_limit;
 589                 int threshold;
 590         } threshold_classes[QDIO_STATS_CLASSES];*/
 591
 592         struct {
 593                 /* inbound: the time to stop polling
 594                    outbound: the time to kick peer */
 595                 int threshold; /* the real value */
 596
 597                 /* outbound: last time of do_QDIO
 598                    inbound: last time of noticing incoming data */
 599                 /*__u64 last_transfer_times[QDIO_STATS_NUMBER];
 600                 int last_transfer_index; */
 601
 602                 __u64 last_transfer_time;
 603                 __u64 busy_start;
 604         } timing;
 605         atomic_t busy_siga_counter;
 606         unsigned int queue_type;
 607
 608         /* leave this member at the end. won't be cleared in qdio_fill_qs */
 609         struct slib *slib; /* a page is allocated under this pointer,
 610                               sl points into this page, offset PAGE_SIZE/2
 611                               (after slib) */
 612 } __attribute__ ((aligned(256)));
 613
 614 struct qdio_irq {
 615         __u32 * volatile dev_st_chg_ind;
 616
 617         unsigned long int_parm;
 618         int irq;
 619
 620         unsigned int is_iqdio_irq;
 621         unsigned int is_thinint_irq;
 622         unsigned int hydra_gives_outbound_pcis;
 623         unsigned int sync_done_on_outb_pcis;
 624
 625         enum qdio_irq_states state;
 626
 627         unsigned int no_input_qs;
 628         unsigned int no_output_qs;
 629
 630         unsigned char qdioac;
 631
 632         struct ccw1 ccw;
 633
 634         struct ciw equeue;
 635         struct ciw aqueue;
 636
 637         struct qib qib;
 638
 639         void (*original_int_handler) (struct ccw_device *,
 640                                       unsigned long, struct irb *);
 641
 642         /* leave these four members together at the end. won't be cleared in qdio_fill_irq */
 643         struct qdr *qdr;
 644         struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ];
 645         struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ];
 646         struct semaphore setting_up_sema;
 647 };
 648 #endif