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 QDIO_AIRQ_ISC
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_CLEANUP_CLEAR_TIMEOUT (20*HZ)
61 #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
62 #define QDIO_FORCE_CHECK_TIMEOUT (10*HZ)
63 #define QDIO_ACTIVATE_TIMEOUT (5) /* 5 ms */
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,
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
81 /************************* DEBUG FACILITY STUFF *********************/
83 #define QDIO_DBF_HEX(ex,name,level,addr,len) \
86 debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \
88 debug_event(qdio_dbf_##name,level,(void*)(addr),len); \
90 #define QDIO_DBF_TEXT(ex,name,level,text) \
93 debug_text_exception(qdio_dbf_##name,level,text); \
95 debug_text_event(qdio_dbf_##name,level,text); \
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 */
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 */
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 */
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 */
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 */
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 */
170 #ifdef CONFIG_QDIO_DEBUG
171 #define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT
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
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 */
186 #define QDIO_PRINTK_HEADER QDIO_NAME ": "
188 #if QDIO_VERBOSE_LEVEL>8
189 #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x)
191 #define QDIO_PRINT_STUPID(x...) do { } while (0)
194 #if QDIO_VERBOSE_LEVEL>7
195 #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x)
197 #define QDIO_PRINT_ALL(x...) do { } while (0)
200 #if QDIO_VERBOSE_LEVEL>6
201 #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x)
203 #define QDIO_PRINT_INFO(x...) do { } while (0)
206 #if QDIO_VERBOSE_LEVEL>5
207 #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x)
209 #define QDIO_PRINT_WARN(x...) do { } while (0)
212 #if QDIO_VERBOSE_LEVEL>4
213 #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x)
215 #define QDIO_PRINT_ERR(x...) do { } while (0)
218 #if QDIO_VERBOSE_LEVEL>3
219 #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x)
221 #define QDIO_PRINT_CRIT(x...) do { } while (0)
224 #if QDIO_VERBOSE_LEVEL>2
225 #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x)
227 #define QDIO_PRINT_ALERT(x...) do { } while (0)
230 #if QDIO_VERBOSE_LEVEL>1
231 #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x)
233 #define QDIO_PRINT_EMERG(x...) do { } while (0)
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));
259 /****************** END OF DEBUG FACILITY STUFF *********************/
262 * Some instructions as assembly
266 do_sqbs(unsigned long sch, unsigned char state, int queue,
267 unsigned int *start, unsigned int *count)
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;
275 " .insn rsy,0xeb000000008A,%1,0,0(%2)"
276 : "+d" (_ccq), "+d" (_queuestart)
277 : "d" ((unsigned long)state), "d" (_sch)
279 *count = _ccq & 0xff;
280 *start = _queuestart & 0xff;
282 return (_ccq >> 32) & 0xff;
289 do_eqbs(unsigned long sch, unsigned char *state, int queue,
290 unsigned int *start, unsigned int *count)
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;
299 " .insn rrf,0xB99c0000,%1,%2,0,0"
300 : "+d" (_ccq), "+d" (_queuestart), "+d" (_state)
303 *count = _ccq & 0xff;
304 *start = _queuestart & 0xff;
305 *state = _state & 0xff;
307 return (_ccq >> 32) & 0xff;
315 do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2)
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;
328 : "d" (reg0), "d" (reg1), "d" (reg2), "d" (reg3) : "cc");
333 do_siga_input(struct subchannel_id schid, unsigned int mask)
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;
345 : "d" (reg0), "d" (reg1), "d" (reg2) : "cc", "memory");
350 do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb,
353 register unsigned long __fc asm("0") = fc;
354 register unsigned long __schid asm("1") = schid;
355 register unsigned long __mask asm("2") = mask;
364 : "=d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask)
365 : "0" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
367 (*bb) = ((unsigned int) __fc) >> 31;
371 static inline unsigned long
372 do_clear_global_summary(void)
374 register unsigned long __fn asm("1") = 3;
375 register unsigned long __tmp asm("2");
376 register unsigned long __time asm("3");
379 " .insn rre,0xb2650000,2,0"
380 : "+d" (__fn), "=d" (__tmp), "=d" (__time));
385 * QDIO device commands returned by extended Sense-ID
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
393 * additional CIWs returned by extended Sense-ID
395 #define CIW_TYPE_EQUEUE 0x3 /* establish QDIO queues */
396 #define CIW_TYPE_AQUEUE 0x4 /* activate QDIO queues */
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
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
409 struct qdio_chsc_ssqd {
410 struct chsc_header request;
418 struct chsc_header response;
437 struct qdio_perf_stats {
440 atomic64_t outbound_tl_runs;
441 atomic64_t outbound_tl_runs_resched;
442 atomic64_t inbound_tl_runs;
443 atomic64_t inbound_tl_runs_resched;
444 atomic64_t inbound_thin_tl_runs;
445 atomic64_t inbound_thin_tl_runs_resched;
447 atomic64_t siga_outs;
449 atomic64_t siga_syncs;
452 atomic64_t fast_reqs;
454 atomic64_t outbound_cnt;
455 atomic64_t inbound_cnt;
456 #else /* CONFIG_64BIT */
458 atomic_t outbound_tl_runs;
459 atomic_t outbound_tl_runs_resched;
460 atomic_t inbound_tl_runs;
461 atomic_t inbound_tl_runs_resched;
462 atomic_t inbound_thin_tl_runs;
463 atomic_t inbound_thin_tl_runs_resched;
472 atomic_t outbound_cnt;
473 atomic_t inbound_cnt;
474 #endif /* CONFIG_64BIT */
477 /* unlikely as the later the better */
478 #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q)
479 #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \
480 qdio_siga_sync(q,~0U,~0U)
481 #define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \
482 qdio_siga_sync(q,~0U,0)
484 #define NOW qdio_get_micros()
485 #define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW
486 #define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time)
487 #define SAVE_FRONTIER(q,val) q->last_move_ftc=val
488 #define GET_SAVED_FRONTIER(q) (q->last_move_ftc)
490 #define MY_MODULE_STRING(x) #x
493 #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x)
494 #else /* CONFIG_64BIT */
495 #define QDIO_GET_ADDR(x) ((__u32)(long)x)
496 #endif /* CONFIG_64BIT */
499 volatile struct slsb slsb;
501 char unused[QDIO_MAX_BUFFERS_PER_Q];
503 __u32 * dev_st_chg_ind;
506 struct subchannel_id schid;
507 struct ccw_device *cdev;
509 unsigned int is_iqdio_q;
510 unsigned int is_thinint_q;
512 /* bit 0 means queue 0, bit 1 means queue 1, ... */
516 qdio_handler_t (*handler);
518 /* points to the next buffer to be checked for having
519 * been processed by the card (outbound)
520 * or to the next buffer the program should check for (inbound) */
521 volatile int first_to_check;
522 /* and the last time it was: */
523 volatile int last_move_ftc;
525 atomic_t number_of_buffers_used;
528 unsigned int siga_in;
529 unsigned int siga_out;
530 unsigned int siga_sync;
531 unsigned int siga_sync_done_on_thinints;
532 unsigned int siga_sync_done_on_outb_tis;
533 unsigned int hydra_gives_outbound_pcis;
535 /* used to save beginning position when calling dd_handlers */
536 int first_element_to_kick;
539 atomic_t is_in_shutdown;
543 struct timer_list timer;
544 #ifdef QDIO_USE_TIMERS_FOR_POLLING
545 atomic_t timer_already_set;
546 spinlock_t timer_lock;
547 #else /* QDIO_USE_TIMERS_FOR_POLLING */
548 struct tasklet_struct tasklet;
549 #endif /* QDIO_USE_TIMERS_FOR_POLLING */
552 enum qdio_irq_states state;
554 /* used to store the error condition during a data transfer */
555 unsigned int qdio_error;
556 unsigned int siga_error;
557 unsigned int error_status_flags;
559 /* list of interesting queues */
560 volatile struct qdio_q *list_next;
561 volatile struct qdio_q *list_prev;
564 volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q];
566 struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q];
568 unsigned long int_parm;
571 int in_bh_check_limit;
573 } threshold_classes[QDIO_STATS_CLASSES];*/
576 /* inbound: the time to stop polling
577 outbound: the time to kick peer */
578 int threshold; /* the real value */
580 /* outbound: last time of do_QDIO
581 inbound: last time of noticing incoming data */
582 /*__u64 last_transfer_times[QDIO_STATS_NUMBER];
583 int last_transfer_index; */
585 __u64 last_transfer_time;
588 atomic_t busy_siga_counter;
589 unsigned int queue_type;
590 unsigned int is_pci_out;
592 /* leave this member at the end. won't be cleared in qdio_fill_qs */
593 struct slib *slib; /* a page is allocated under this pointer,
594 sl points into this page, offset PAGE_SIZE/2
596 } __attribute__ ((aligned(256)));
599 __u32 * volatile dev_st_chg_ind;
601 unsigned long int_parm;
602 struct subchannel_id schid;
604 unsigned int is_iqdio_irq;
605 unsigned int is_thinint_irq;
606 unsigned int hydra_gives_outbound_pcis;
607 unsigned int sync_done_on_outb_pcis;
610 unsigned int is_qebsm;
611 unsigned long sch_token;
613 enum qdio_irq_states state;
615 unsigned int no_input_qs;
616 unsigned int no_output_qs;
618 unsigned char qdioac;
627 void (*original_int_handler) (struct ccw_device *,
628 unsigned long, struct irb *);
630 /* leave these four members together at the end. won't be cleared in qdio_fill_irq */
632 struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ];
633 struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ];
634 struct semaphore setting_up_sema;