Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _CIO_QDIO_H |
| 2 | #define _CIO_QDIO_H |
| 3 | |
Peter Oberparleiter | 0b642ed | 2005-05-01 08:58:58 -0700 | [diff] [blame] | 4 | #include <asm/page.h> |
| 5 | |
Cornelia Huck | a8237fc | 2006-01-06 00:19:21 -0800 | [diff] [blame] | 6 | #include "schid.h" |
| 7 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #define QDIO_USE_PROCESSING_STATE |
| 14 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Peter Oberparleiter | 0b642ed | 2005-05-01 08:58:58 -0700 | [diff] [blame] | 42 | #define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ) |
| 61 | #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ) |
Ursula Braun | 1f8bdae | 2007-05-02 15:18:07 +0200 | [diff] [blame] | 62 | #define QDIO_FORCE_CHECK_TIMEOUT (10*HZ) |
Heiko Carstens | b32ecdb | 2008-02-19 15:29:30 +0100 | [diff] [blame] | 63 | #define QDIO_ACTIVATE_TIMEOUT (5) /* 5 ms */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 131 | #define QDIO_DBF_SETUP_PAGES 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 141 | #define QDIO_DBF_SBAL_PAGES 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 153 | #define QDIO_DBF_TRACE_PAGES 16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | #define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */ |
| 155 | #else /* CONFIG_QDIO_DEBUG */ |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 156 | #define QDIO_DBF_TRACE_PAGES 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 162 | #define QDIO_DBF_SENSE_PAGES 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 175 | #define QDIO_DBF_SLSB_OUT_PAGES 256 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Michael Holzheu | 66a464d | 2005-06-25 14:55:33 -0700 | [diff] [blame] | 181 | #define QDIO_DBF_SLSB_IN_PAGES 256 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 191 | #define QDIO_PRINT_STUPID(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | #endif |
| 193 | |
| 194 | #if QDIO_VERBOSE_LEVEL>7 |
| 195 | #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x) |
| 196 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 197 | #define QDIO_PRINT_ALL(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | #endif |
| 199 | |
| 200 | #if QDIO_VERBOSE_LEVEL>6 |
| 201 | #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x) |
| 202 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 203 | #define QDIO_PRINT_INFO(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | #endif |
| 205 | |
| 206 | #if QDIO_VERBOSE_LEVEL>5 |
| 207 | #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x) |
| 208 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 209 | #define QDIO_PRINT_WARN(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | #endif |
| 211 | |
| 212 | #if QDIO_VERBOSE_LEVEL>4 |
| 213 | #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x) |
| 214 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 215 | #define QDIO_PRINT_ERR(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | #endif |
| 217 | |
| 218 | #if QDIO_VERBOSE_LEVEL>3 |
| 219 | #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x) |
| 220 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 221 | #define QDIO_PRINT_CRIT(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | #endif |
| 223 | |
| 224 | #if QDIO_VERBOSE_LEVEL>2 |
| 225 | #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x) |
| 226 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 227 | #define QDIO_PRINT_ALERT(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | #endif |
| 229 | |
| 230 | #if QDIO_VERBOSE_LEVEL>1 |
| 231 | #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x) |
| 232 | #else |
Heiko Carstens | 39b083f | 2006-09-20 15:58:51 +0200 | [diff] [blame] | 233 | #define QDIO_PRINT_EMERG(x...) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | #endif |
| 235 | |
Ursula Braun | 9163bb2 | 2006-12-04 15:40:59 +0100 | [diff] [blame] | 236 | #define QDIO_HEXDUMP16(importance,header,ptr) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 264 | |
| 265 | static inline int |
| 266 | do_sqbs(unsigned long sch, unsigned char state, int queue, |
| 267 | unsigned int *start, unsigned int *count) |
| 268 | { |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 269 | #ifdef CONFIG_64BIT |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 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 | |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 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"); |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 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 | { |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 292 | #ifdef CONFIG_64BIT |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 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 | |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 298 | asm volatile( |
| 299 | " .insn rrf,0xB99c0000,%1,%2,0,0" |
| 300 | : "+d" (_ccq), "+d" (_queuestart), "+d" (_state) |
| 301 | : "d" (_sch) |
| 302 | : "memory", "cc" ); |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 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 | |
Adrian Bunk | 4448aaf | 2005-11-08 21:34:42 -0800 | [diff] [blame] | 314 | static inline int |
Cornelia Huck | a8237fc | 2006-01-06 00:19:21 -0800 | [diff] [blame] | 315 | do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | { |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | int cc; |
| 322 | |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 323 | asm volatile( |
| 324 | " siga 0\n" |
| 325 | " ipm %0\n" |
| 326 | " srl %0,28\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | : "=d" (cc) |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 328 | : "d" (reg0), "d" (reg1), "d" (reg2), "d" (reg3) : "cc"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | return cc; |
| 330 | } |
| 331 | |
Adrian Bunk | 4448aaf | 2005-11-08 21:34:42 -0800 | [diff] [blame] | 332 | static inline int |
Cornelia Huck | a8237fc | 2006-01-06 00:19:21 -0800 | [diff] [blame] | 333 | do_siga_input(struct subchannel_id schid, unsigned int mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | { |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | int cc; |
| 339 | |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 340 | asm volatile( |
| 341 | " siga 0\n" |
| 342 | " ipm %0\n" |
| 343 | " srl %0,28\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | : "=d" (cc) |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 345 | : "d" (reg0), "d" (reg1), "d" (reg2) : "cc", "memory"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | return cc; |
| 347 | } |
| 348 | |
Adrian Bunk | 4448aaf | 2005-11-08 21:34:42 -0800 | [diff] [blame] | 349 | static inline int |
Cornelia Huck | a8237fc | 2006-01-06 00:19:21 -0800 | [diff] [blame] | 350 | do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb, |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 351 | unsigned int fc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 353 | register unsigned long __fc asm("0") = fc; |
| 354 | register unsigned long __schid asm("1") = schid; |
| 355 | register unsigned long __mask asm("2") = mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | int cc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | return cc; |
| 369 | } |
| 370 | |
Adrian Bunk | 4448aaf | 2005-11-08 21:34:42 -0800 | [diff] [blame] | 371 | static inline unsigned long |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | do_clear_global_summary(void) |
| 373 | { |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 374 | register unsigned long __fn asm("1") = 3; |
| 375 | register unsigned long __tmp asm("2"); |
| 376 | register unsigned long __time asm("3"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 378 | asm volatile( |
| 379 | " .insn rre,0xb2650000,2,0" |
| 380 | : "+d" (__fn), "=d" (__tmp), "=d" (__time)); |
| 381 | return __time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Ursula Braun | e177685 | 2008-04-17 07:46:22 +0200 | [diff] [blame^] | 409 | struct qdio_chsc_ssqd { |
| 410 | struct chsc_header request; |
| 411 | u16 reserved1:10; |
| 412 | u16 ssid:2; |
| 413 | u16 fmt:4; |
| 414 | u16 first_sch; |
| 415 | u16 reserved2; |
| 416 | u16 last_sch; |
| 417 | u32 reserved3; |
| 418 | struct chsc_header response; |
| 419 | u32 reserved4; |
| 420 | u8 flags; |
| 421 | u8 reserved5; |
| 422 | u16 sch; |
| 423 | u8 qfmt; |
| 424 | u8 parm; |
| 425 | u8 qdioac1; |
| 426 | u8 sch_class; |
| 427 | u8 pct; |
| 428 | u8 icnt; |
| 429 | u8 reserved7; |
| 430 | u8 ocnt; |
| 431 | u8 reserved8; |
| 432 | u8 mbccnt; |
| 433 | u16 qdioac2; |
| 434 | u64 sch_token; |
| 435 | }; |
| 436 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | struct qdio_perf_stats { |
Ursula Braun | 00c0c64 | 2007-05-04 18:47:49 +0200 | [diff] [blame] | 438 | #ifdef CONFIG_64BIT |
| 439 | atomic64_t tl_runs; |
| 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
Ursula Braun | 00c0c64 | 2007-05-04 18:47:49 +0200 | [diff] [blame] | 447 | atomic64_t siga_outs; |
| 448 | atomic64_t siga_ins; |
| 449 | atomic64_t siga_syncs; |
| 450 | atomic64_t pcis; |
| 451 | atomic64_t thinints; |
| 452 | atomic64_t fast_reqs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | |
Ursula Braun | 00c0c64 | 2007-05-04 18:47:49 +0200 | [diff] [blame] | 454 | atomic64_t outbound_cnt; |
| 455 | atomic64_t inbound_cnt; |
| 456 | #else /* CONFIG_64BIT */ |
| 457 | atomic_t tl_runs; |
| 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; |
| 464 | |
| 465 | atomic_t siga_outs; |
| 466 | atomic_t siga_ins; |
| 467 | atomic_t siga_syncs; |
| 468 | atomic_t pcis; |
| 469 | atomic_t thinints; |
| 470 | atomic_t fast_reqs; |
| 471 | |
| 472 | atomic_t outbound_cnt; |
| 473 | atomic_t inbound_cnt; |
| 474 | #endif /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| 483 | |
| 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) |
| 489 | |
| 490 | #define MY_MODULE_STRING(x) #x |
| 491 | |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 492 | #ifdef CONFIG_64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | #define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x) |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 494 | #else /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | #define QDIO_GET_ADDR(x) ((__u32)(long)x) |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 496 | #endif /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | struct qdio_q { |
| 499 | volatile struct slsb slsb; |
| 500 | |
| 501 | char unused[QDIO_MAX_BUFFERS_PER_Q]; |
| 502 | |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 503 | __u32 * dev_st_chg_ind; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | |
| 505 | int is_input_q; |
Cornelia Huck | a8237fc | 2006-01-06 00:19:21 -0800 | [diff] [blame] | 506 | struct subchannel_id schid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | struct ccw_device *cdev; |
| 508 | |
| 509 | unsigned int is_iqdio_q; |
| 510 | unsigned int is_thinint_q; |
| 511 | |
| 512 | /* bit 0 means queue 0, bit 1 means queue 1, ... */ |
| 513 | unsigned int mask; |
| 514 | unsigned int q_no; |
| 515 | |
| 516 | qdio_handler_t (*handler); |
| 517 | |
| 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; |
| 524 | |
| 525 | atomic_t number_of_buffers_used; |
| 526 | atomic_t polling; |
| 527 | |
| 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; |
| 534 | |
| 535 | /* used to save beginning position when calling dd_handlers */ |
| 536 | int first_element_to_kick; |
| 537 | |
| 538 | atomic_t use_count; |
| 539 | atomic_t is_in_shutdown; |
| 540 | |
| 541 | void *irq_ptr; |
| 542 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | struct timer_list timer; |
Ursula Braun | 1f8bdae | 2007-05-02 15:18:07 +0200 | [diff] [blame] | 544 | #ifdef QDIO_USE_TIMERS_FOR_POLLING |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |
| 550 | |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 551 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | enum qdio_irq_states state; |
| 553 | |
| 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; |
| 558 | |
| 559 | /* list of interesting queues */ |
| 560 | volatile struct qdio_q *list_next; |
| 561 | volatile struct qdio_q *list_prev; |
| 562 | |
| 563 | struct sl *sl; |
| 564 | volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q]; |
| 565 | |
| 566 | struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q]; |
| 567 | |
| 568 | unsigned long int_parm; |
| 569 | |
| 570 | /*struct { |
| 571 | int in_bh_check_limit; |
| 572 | int threshold; |
| 573 | } threshold_classes[QDIO_STATS_CLASSES];*/ |
| 574 | |
| 575 | struct { |
| 576 | /* inbound: the time to stop polling |
| 577 | outbound: the time to kick peer */ |
| 578 | int threshold; /* the real value */ |
| 579 | |
| 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; */ |
| 584 | |
| 585 | __u64 last_transfer_time; |
| 586 | __u64 busy_start; |
| 587 | } timing; |
| 588 | atomic_t busy_siga_counter; |
| 589 | unsigned int queue_type; |
Ursula Braun | 1f8bdae | 2007-05-02 15:18:07 +0200 | [diff] [blame] | 590 | unsigned int is_pci_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 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 |
| 595 | (after slib) */ |
| 596 | } __attribute__ ((aligned(256))); |
| 597 | |
| 598 | struct qdio_irq { |
| 599 | __u32 * volatile dev_st_chg_ind; |
| 600 | |
| 601 | unsigned long int_parm; |
Cornelia Huck | a8237fc | 2006-01-06 00:19:21 -0800 | [diff] [blame] | 602 | struct subchannel_id schid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | |
| 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; |
| 608 | |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 609 | /* QEBSM facility */ |
| 610 | unsigned int is_qebsm; |
| 611 | unsigned long sch_token; |
| 612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | enum qdio_irq_states state; |
| 614 | |
| 615 | unsigned int no_input_qs; |
| 616 | unsigned int no_output_qs; |
| 617 | |
| 618 | unsigned char qdioac; |
| 619 | |
| 620 | struct ccw1 ccw; |
| 621 | |
| 622 | struct ciw equeue; |
| 623 | struct ciw aqueue; |
| 624 | |
| 625 | struct qib qib; |
| 626 | |
| 627 | void (*original_int_handler) (struct ccw_device *, |
| 628 | unsigned long, struct irb *); |
| 629 | |
| 630 | /* leave these four members together at the end. won't be cleared in qdio_fill_irq */ |
| 631 | struct qdr *qdr; |
| 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; |
| 635 | }; |
| 636 | #endif |