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
15 #define QDIO_MINIMAL_BH_RELIEF_TIME 16
16 #define QDIO_TIMER_POLL_VALUE 1
17 #define IQDIO_TIMER_POLL_VALUE 1
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
27 #define IQDIO_FILL_LEVEL_TO_POLL 4
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*/
42 #define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY
44 #define L2_CACHELINE_SIZE 256
45 #define INDICATORS_PER_CACHELINE (L2_CACHELINE_SIZE/sizeof(__u32))
47 #define QDIO_PERF "qdio_perf"
49 /* must be a power of 2 */
50 /*#define QDIO_STATS_NUMBER 4
52 #define QDIO_STATS_CLASSES 2
53 #define QDIO_STATS_COUNT_NEEDED 2*/
55 #define QDIO_NO_USE_COUNT_TIMEOUT (1*HZ) /* wait for 1 sec on each q before
56 exiting without having use_count
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)
64 enum qdio_irq_states {
65 QDIO_IRQ_STATE_INACTIVE,
66 QDIO_IRQ_STATE_ESTABLISHED,
67 QDIO_IRQ_STATE_ACTIVE,
68 QDIO_IRQ_STATE_STOPPED,
69 QDIO_IRQ_STATE_CLEANUP,
74 /* used as intparm in do_IO: */
75 #define QDIO_DOING_SENSEID 0
76 #define QDIO_DOING_ESTABLISH 1
77 #define QDIO_DOING_ACTIVATE 2
78 #define QDIO_DOING_CLEANUP 3
80 /************************* DEBUG FACILITY STUFF *********************/
82 #define QDIO_DBF_HEX(ex,name,level,addr,len) \
85 debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \
87 debug_event(qdio_dbf_##name,level,(void*)(addr),len); \
89 #define QDIO_DBF_TEXT(ex,name,level,text) \
92 debug_text_exception(qdio_dbf_##name,level,text); \
94 debug_text_event(qdio_dbf_##name,level,text); \
98 #define QDIO_DBF_HEX0(ex,name,addr,len) QDIO_DBF_HEX(ex,name,0,addr,len)
99 #define QDIO_DBF_HEX1(ex,name,addr,len) QDIO_DBF_HEX(ex,name,1,addr,len)
100 #define QDIO_DBF_HEX2(ex,name,addr,len) QDIO_DBF_HEX(ex,name,2,addr,len)
101 #ifdef CONFIG_QDIO_DEBUG
102 #define QDIO_DBF_HEX3(ex,name,addr,len) QDIO_DBF_HEX(ex,name,3,addr,len)
103 #define QDIO_DBF_HEX4(ex,name,addr,len) QDIO_DBF_HEX(ex,name,4,addr,len)
104 #define QDIO_DBF_HEX5(ex,name,addr,len) QDIO_DBF_HEX(ex,name,5,addr,len)
105 #define QDIO_DBF_HEX6(ex,name,addr,len) QDIO_DBF_HEX(ex,name,6,addr,len)
106 #else /* CONFIG_QDIO_DEBUG */
107 #define QDIO_DBF_HEX3(ex,name,addr,len) do {} while (0)
108 #define QDIO_DBF_HEX4(ex,name,addr,len) do {} while (0)
109 #define QDIO_DBF_HEX5(ex,name,addr,len) do {} while (0)
110 #define QDIO_DBF_HEX6(ex,name,addr,len) do {} while (0)
111 #endif /* CONFIG_QDIO_DEBUG */
113 #define QDIO_DBF_TEXT0(ex,name,text) QDIO_DBF_TEXT(ex,name,0,text)
114 #define QDIO_DBF_TEXT1(ex,name,text) QDIO_DBF_TEXT(ex,name,1,text)
115 #define QDIO_DBF_TEXT2(ex,name,text) QDIO_DBF_TEXT(ex,name,2,text)
116 #ifdef CONFIG_QDIO_DEBUG
117 #define QDIO_DBF_TEXT3(ex,name,text) QDIO_DBF_TEXT(ex,name,3,text)
118 #define QDIO_DBF_TEXT4(ex,name,text) QDIO_DBF_TEXT(ex,name,4,text)
119 #define QDIO_DBF_TEXT5(ex,name,text) QDIO_DBF_TEXT(ex,name,5,text)
120 #define QDIO_DBF_TEXT6(ex,name,text) QDIO_DBF_TEXT(ex,name,6,text)
121 #else /* CONFIG_QDIO_DEBUG */
122 #define QDIO_DBF_TEXT3(ex,name,text) do {} while (0)
123 #define QDIO_DBF_TEXT4(ex,name,text) do {} while (0)
124 #define QDIO_DBF_TEXT5(ex,name,text) do {} while (0)
125 #define QDIO_DBF_TEXT6(ex,name,text) do {} while (0)
126 #endif /* CONFIG_QDIO_DEBUG */
128 #define QDIO_DBF_SETUP_NAME "qdio_setup"
129 #define QDIO_DBF_SETUP_LEN 8
130 #define QDIO_DBF_SETUP_PAGES 4
131 #define QDIO_DBF_SETUP_NR_AREAS 1
132 #ifdef CONFIG_QDIO_DEBUG
133 #define QDIO_DBF_SETUP_LEVEL 6
134 #else /* CONFIG_QDIO_DEBUG */
135 #define QDIO_DBF_SETUP_LEVEL 2
136 #endif /* CONFIG_QDIO_DEBUG */
138 #define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */
139 #define QDIO_DBF_SBAL_LEN 256
140 #define QDIO_DBF_SBAL_PAGES 4
141 #define QDIO_DBF_SBAL_NR_AREAS 2
142 #ifdef CONFIG_QDIO_DEBUG
143 #define QDIO_DBF_SBAL_LEVEL 6
144 #else /* CONFIG_QDIO_DEBUG */
145 #define QDIO_DBF_SBAL_LEVEL 2
146 #endif /* CONFIG_QDIO_DEBUG */
148 #define QDIO_DBF_TRACE_NAME "qdio_trace"
149 #define QDIO_DBF_TRACE_LEN 8
150 #define QDIO_DBF_TRACE_NR_AREAS 2
151 #ifdef CONFIG_QDIO_DEBUG
152 #define QDIO_DBF_TRACE_PAGES 16
153 #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */
154 #else /* CONFIG_QDIO_DEBUG */
155 #define QDIO_DBF_TRACE_PAGES 4
156 #define QDIO_DBF_TRACE_LEVEL 2
157 #endif /* CONFIG_QDIO_DEBUG */
159 #define QDIO_DBF_SENSE_NAME "qdio_sense"
160 #define QDIO_DBF_SENSE_LEN 64
161 #define QDIO_DBF_SENSE_PAGES 2
162 #define QDIO_DBF_SENSE_NR_AREAS 1
163 #ifdef CONFIG_QDIO_DEBUG
164 #define QDIO_DBF_SENSE_LEVEL 6
165 #else /* CONFIG_QDIO_DEBUG */
166 #define QDIO_DBF_SENSE_LEVEL 2
167 #endif /* CONFIG_QDIO_DEBUG */
169 #ifdef CONFIG_QDIO_DEBUG
170 #define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT
172 #define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out"
173 #define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q
174 #define QDIO_DBF_SLSB_OUT_PAGES 256
175 #define QDIO_DBF_SLSB_OUT_NR_AREAS 1
176 #define QDIO_DBF_SLSB_OUT_LEVEL 6
178 #define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in"
179 #define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q
180 #define QDIO_DBF_SLSB_IN_PAGES 256
181 #define QDIO_DBF_SLSB_IN_NR_AREAS 1
182 #define QDIO_DBF_SLSB_IN_LEVEL 6
183 #endif /* CONFIG_QDIO_DEBUG */
185 #define QDIO_PRINTK_HEADER QDIO_NAME ": "
187 #if QDIO_VERBOSE_LEVEL>8
188 #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x)
190 #define QDIO_PRINT_STUPID(x...) do { } while (0)
193 #if QDIO_VERBOSE_LEVEL>7
194 #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x)
196 #define QDIO_PRINT_ALL(x...) do { } while (0)
199 #if QDIO_VERBOSE_LEVEL>6
200 #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x)
202 #define QDIO_PRINT_INFO(x...) do { } while (0)
205 #if QDIO_VERBOSE_LEVEL>5
206 #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x)
208 #define QDIO_PRINT_WARN(x...) do { } while (0)
211 #if QDIO_VERBOSE_LEVEL>4
212 #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x)
214 #define QDIO_PRINT_ERR(x...) do { } while (0)
217 #if QDIO_VERBOSE_LEVEL>3
218 #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x)
220 #define QDIO_PRINT_CRIT(x...) do { } while (0)
223 #if QDIO_VERBOSE_LEVEL>2
224 #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x)
226 #define QDIO_PRINT_ALERT(x...) do { } while (0)
229 #if QDIO_VERBOSE_LEVEL>1
230 #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x)
232 #define QDIO_PRINT_EMERG(x...) do { } while (0)
235 #define QDIO_HEXDUMP16(importance,header,ptr) \
236 QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \
237 "%02x %02x %02x %02x %02x %02x %02x %02x " \
238 "%02x %02x %02x %02x\n",*(((char*)ptr)), \
239 *(((char*)ptr)+1),*(((char*)ptr)+2), \
240 *(((char*)ptr)+3),*(((char*)ptr)+4), \
241 *(((char*)ptr)+5),*(((char*)ptr)+6), \
242 *(((char*)ptr)+7),*(((char*)ptr)+8), \
243 *(((char*)ptr)+9),*(((char*)ptr)+10), \
244 *(((char*)ptr)+11),*(((char*)ptr)+12), \
245 *(((char*)ptr)+13),*(((char*)ptr)+14), \
246 *(((char*)ptr)+15)); \
247 QDIO_PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
248 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
249 *(((char*)ptr)+16),*(((char*)ptr)+17), \
250 *(((char*)ptr)+18),*(((char*)ptr)+19), \
251 *(((char*)ptr)+20),*(((char*)ptr)+21), \
252 *(((char*)ptr)+22),*(((char*)ptr)+23), \
253 *(((char*)ptr)+24),*(((char*)ptr)+25), \
254 *(((char*)ptr)+26),*(((char*)ptr)+27), \
255 *(((char*)ptr)+28),*(((char*)ptr)+29), \
256 *(((char*)ptr)+30),*(((char*)ptr)+31));
258 /****************** END OF DEBUG FACILITY STUFF *********************/
261 * Some instructions as assembly
265 do_sqbs(unsigned long sch, unsigned char state, int queue,
266 unsigned int *start, unsigned int *count)
269 register unsigned long _ccq asm ("0") = *count;
270 register unsigned long _sch asm ("1") = sch;
271 unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
274 " .insn rsy,0xeb000000008A,%1,0,0(%2)"
275 : "+d" (_ccq), "+d" (_queuestart)
276 : "d" ((unsigned long)state), "d" (_sch)
278 *count = _ccq & 0xff;
279 *start = _queuestart & 0xff;
281 return (_ccq >> 32) & 0xff;
288 do_eqbs(unsigned long sch, unsigned char *state, int queue,
289 unsigned int *start, unsigned int *count)
292 register unsigned long _ccq asm ("0") = *count;
293 register unsigned long _sch asm ("1") = sch;
294 unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
295 unsigned long _state = 0;
298 " .insn rrf,0xB99c0000,%1,%2,0,0"
299 : "+d" (_ccq), "+d" (_queuestart), "+d" (_state)
302 *count = _ccq & 0xff;
303 *start = _queuestart & 0xff;
304 *state = _state & 0xff;
306 return (_ccq >> 32) & 0xff;
314 do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2)
316 register unsigned long reg0 asm ("0") = 2;
317 register struct subchannel_id reg1 asm ("1") = schid;
318 register unsigned long reg2 asm ("2") = mask1;
319 register unsigned long reg3 asm ("3") = mask2;
327 : "d" (reg0), "d" (reg1), "d" (reg2), "d" (reg3) : "cc");
332 do_siga_input(struct subchannel_id schid, unsigned int mask)
334 register unsigned long reg0 asm ("0") = 1;
335 register struct subchannel_id reg1 asm ("1") = schid;
336 register unsigned long reg2 asm ("2") = mask;
344 : "d" (reg0), "d" (reg1), "d" (reg2) : "cc", "memory");
349 do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb,
352 register unsigned long __fc asm("0") = fc;
353 register unsigned long __schid asm("1") = schid;
354 register unsigned long __mask asm("2") = mask;
363 : "=d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask)
364 : "0" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
366 (*bb) = ((unsigned int) __fc) >> 31;
370 static inline unsigned long
371 do_clear_global_summary(void)
373 register unsigned long __fn asm("1") = 3;
374 register unsigned long __tmp asm("2");
375 register unsigned long __time asm("3");
378 " .insn rre,0xb2650000,2,0"
379 : "+d" (__fn), "=d" (__tmp), "=d" (__time));
384 * QDIO device commands returned by extended Sense-ID
386 #define DEFAULT_ESTABLISH_QS_CMD 0x1b
387 #define DEFAULT_ESTABLISH_QS_COUNT 0x1000
388 #define DEFAULT_ACTIVATE_QS_CMD 0x1f
389 #define DEFAULT_ACTIVATE_QS_COUNT 0
392 * additional CIWs returned by extended Sense-ID
394 #define CIW_TYPE_EQUEUE 0x3 /* establish QDIO queues */
395 #define CIW_TYPE_AQUEUE 0x4 /* activate QDIO queues */
397 #define QDIO_CHSC_RESPONSE_CODE_OK 1
398 /* flags for st qdio sch data */
399 #define CHSC_FLAG_QDIO_CAPABILITY 0x80
400 #define CHSC_FLAG_VALIDITY 0x40
402 #define CHSC_FLAG_SIGA_INPUT_NECESSARY 0x40
403 #define CHSC_FLAG_SIGA_OUTPUT_NECESSARY 0x20
404 #define CHSC_FLAG_SIGA_SYNC_NECESSARY 0x10
405 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08
406 #define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04
408 struct qdio_perf_stats {
409 unsigned long tl_runs;
411 unsigned long siga_outs;
412 unsigned long siga_ins;
413 unsigned long siga_syncs;
415 unsigned long thinints;
416 unsigned long fast_reqs;
418 __u64 start_time_outbound;
419 unsigned long outbound_cnt;
420 unsigned long outbound_time;
421 __u64 start_time_inbound;
422 unsigned long inbound_cnt;
423 unsigned long inbound_time;
426 /* unlikely as the later the better */
427 #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q)
428 #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \
429 qdio_siga_sync(q,~0U,~0U)
430 #define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \
431 qdio_siga_sync(q,~0U,0)
433 #define NOW qdio_get_micros()
434 #define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW
435 #define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time)
436 #define SAVE_FRONTIER(q,val) q->last_move_ftc=val
437 #define GET_SAVED_FRONTIER(q) (q->last_move_ftc)
439 #define MY_MODULE_STRING(x) #x
442 #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x)
443 #else /* CONFIG_64BIT */
444 #define QDIO_GET_ADDR(x) ((__u32)(long)x)
445 #endif /* CONFIG_64BIT */
448 volatile struct slsb slsb;
450 char unused[QDIO_MAX_BUFFERS_PER_Q];
452 __u32 * dev_st_chg_ind;
455 struct subchannel_id schid;
456 struct ccw_device *cdev;
458 unsigned int is_iqdio_q;
459 unsigned int is_thinint_q;
461 /* bit 0 means queue 0, bit 1 means queue 1, ... */
465 qdio_handler_t (*handler);
467 /* points to the next buffer to be checked for having
468 * been processed by the card (outbound)
469 * or to the next buffer the program should check for (inbound) */
470 volatile int first_to_check;
471 /* and the last time it was: */
472 volatile int last_move_ftc;
474 atomic_t number_of_buffers_used;
477 unsigned int siga_in;
478 unsigned int siga_out;
479 unsigned int siga_sync;
480 unsigned int siga_sync_done_on_thinints;
481 unsigned int siga_sync_done_on_outb_tis;
482 unsigned int hydra_gives_outbound_pcis;
484 /* used to save beginning position when calling dd_handlers */
485 int first_element_to_kick;
488 atomic_t is_in_shutdown;
492 #ifdef QDIO_USE_TIMERS_FOR_POLLING
493 struct timer_list timer;
494 atomic_t timer_already_set;
495 spinlock_t timer_lock;
496 #else /* QDIO_USE_TIMERS_FOR_POLLING */
497 struct tasklet_struct tasklet;
498 #endif /* QDIO_USE_TIMERS_FOR_POLLING */
501 enum qdio_irq_states state;
503 /* used to store the error condition during a data transfer */
504 unsigned int qdio_error;
505 unsigned int siga_error;
506 unsigned int error_status_flags;
508 /* list of interesting queues */
509 volatile struct qdio_q *list_next;
510 volatile struct qdio_q *list_prev;
513 volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q];
515 struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q];
517 unsigned long int_parm;
520 int in_bh_check_limit;
522 } threshold_classes[QDIO_STATS_CLASSES];*/
525 /* inbound: the time to stop polling
526 outbound: the time to kick peer */
527 int threshold; /* the real value */
529 /* outbound: last time of do_QDIO
530 inbound: last time of noticing incoming data */
531 /*__u64 last_transfer_times[QDIO_STATS_NUMBER];
532 int last_transfer_index; */
534 __u64 last_transfer_time;
537 atomic_t busy_siga_counter;
538 unsigned int queue_type;
540 /* leave this member at the end. won't be cleared in qdio_fill_qs */
541 struct slib *slib; /* a page is allocated under this pointer,
542 sl points into this page, offset PAGE_SIZE/2
544 } __attribute__ ((aligned(256)));
547 __u32 * volatile dev_st_chg_ind;
549 unsigned long int_parm;
550 struct subchannel_id schid;
552 unsigned int is_iqdio_irq;
553 unsigned int is_thinint_irq;
554 unsigned int hydra_gives_outbound_pcis;
555 unsigned int sync_done_on_outb_pcis;
558 unsigned int is_qebsm;
559 unsigned long sch_token;
561 enum qdio_irq_states state;
563 unsigned int no_input_qs;
564 unsigned int no_output_qs;
566 unsigned char qdioac;
575 void (*original_int_handler) (struct ccw_device *,
576 unsigned long, struct irb *);
578 /* leave these four members together at the end. won't be cleared in qdio_fill_irq */
580 struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ];
581 struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ];
582 struct semaphore setting_up_sema;