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[PATCH] aic7xxx_osm build fix
[cris-mirror.git] / drivers / s390 / net / qeth.h
bloba341041a6cf77358955232fae17fa61ef09b4107
1 #ifndef __QETH_H__
2 #define __QETH_H__
3
4 #include <linux/if.h>
5 #include <linux/if_arp.h>
6
7 #include <linux/if_tr.h>
8 #include <linux/trdevice.h>
9 #include <linux/etherdevice.h>
10 #include <linux/if_vlan.h>
11
12 #include <net/ipv6.h>
13 #include <linux/in6.h>
14 #include <net/if_inet6.h>
15 #include <net/addrconf.h>
16
17
18 #include <linux/bitops.h>
19
20 #include <asm/debug.h>
21 #include <asm/qdio.h>
22 #include <asm/ccwdev.h>
23 #include <asm/ccwgroup.h>
24
25 #include "qeth_mpc.h"
26
27 #define VERSION_QETH_H "$Revision: 1.135 $"
28
29 #ifdef CONFIG_QETH_IPV6
30 #define QETH_VERSION_IPV6 ":IPv6"
31 #else
32 #define QETH_VERSION_IPV6 ""
33 #endif
34 #ifdef CONFIG_QETH_VLAN
35 #define QETH_VERSION_VLAN ":VLAN"
36 #else
37 #define QETH_VERSION_VLAN ""
38 #endif
39
40 /**
41 * Debug Facility stuff
42 */
43 #define QETH_DBF_SETUP_NAME "qeth_setup"
44 #define QETH_DBF_SETUP_LEN 8
45 #define QETH_DBF_SETUP_INDEX 3
46 #define QETH_DBF_SETUP_NR_AREAS 1
47 #define QETH_DBF_SETUP_LEVEL 5
48
49 #define QETH_DBF_MISC_NAME "qeth_misc"
50 #define QETH_DBF_MISC_LEN 128
51 #define QETH_DBF_MISC_INDEX 1
52 #define QETH_DBF_MISC_NR_AREAS 1
53 #define QETH_DBF_MISC_LEVEL 2
54
55 #define QETH_DBF_DATA_NAME "qeth_data"
56 #define QETH_DBF_DATA_LEN 96
57 #define QETH_DBF_DATA_INDEX 3
58 #define QETH_DBF_DATA_NR_AREAS 1
59 #define QETH_DBF_DATA_LEVEL 2
60
61 #define QETH_DBF_CONTROL_NAME "qeth_control"
62 #define QETH_DBF_CONTROL_LEN 256
63 #define QETH_DBF_CONTROL_INDEX 3
64 #define QETH_DBF_CONTROL_NR_AREAS 2
65 #define QETH_DBF_CONTROL_LEVEL 5
66
67 #define QETH_DBF_TRACE_NAME "qeth_trace"
68 #define QETH_DBF_TRACE_LEN 8
69 #define QETH_DBF_TRACE_INDEX 2
70 #define QETH_DBF_TRACE_NR_AREAS 2
71 #define QETH_DBF_TRACE_LEVEL 3
72 extern debug_info_t *qeth_dbf_trace;
73
74 #define QETH_DBF_SENSE_NAME "qeth_sense"
75 #define QETH_DBF_SENSE_LEN 64
76 #define QETH_DBF_SENSE_INDEX 1
77 #define QETH_DBF_SENSE_NR_AREAS 1
78 #define QETH_DBF_SENSE_LEVEL 2
79
80 #define QETH_DBF_QERR_NAME "qeth_qerr"
81 #define QETH_DBF_QERR_LEN 8
82 #define QETH_DBF_QERR_INDEX 1
83 #define QETH_DBF_QERR_NR_AREAS 2
84 #define QETH_DBF_QERR_LEVEL 2
85
86 #define QETH_DBF_TEXT(name,level,text) \
87 do { \
88 debug_text_event(qeth_dbf_##name,level,text); \
89 } while (0)
90
91 #define QETH_DBF_HEX(name,level,addr,len) \
92 do { \
93 debug_event(qeth_dbf_##name,level,(void*)(addr),len); \
94 } while (0)
95
96 DECLARE_PER_CPU(char[256], qeth_dbf_txt_buf);
97
98 #define QETH_DBF_TEXT_(name,level,text...) \
99 do { \
100 char* dbf_txt_buf = get_cpu_var(qeth_dbf_txt_buf); \
101 sprintf(dbf_txt_buf, text); \
102 debug_text_event(qeth_dbf_##name,level,dbf_txt_buf); \
103 put_cpu_var(qeth_dbf_txt_buf); \
104 } while (0)
105
106 #define QETH_DBF_SPRINTF(name,level,text...) \
107 do { \
108 debug_sprintf_event(qeth_dbf_trace, level, ##text ); \
109 debug_sprintf_event(qeth_dbf_trace, level, text ); \
110 } while (0)
111
112 /**
113 * some more debug stuff
114 */
115 #define PRINTK_HEADER "qeth: "
116
117 #define HEXDUMP16(importance,header,ptr) \
118 PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
119 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
120 *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
121 *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
122 *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
123 *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
124 *(((char*)ptr)+12),*(((char*)ptr)+13), \
125 *(((char*)ptr)+14),*(((char*)ptr)+15)); \
126 PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
127 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
128 *(((char*)ptr)+16),*(((char*)ptr)+17), \
129 *(((char*)ptr)+18),*(((char*)ptr)+19), \
130 *(((char*)ptr)+20),*(((char*)ptr)+21), \
131 *(((char*)ptr)+22),*(((char*)ptr)+23), \
132 *(((char*)ptr)+24),*(((char*)ptr)+25), \
133 *(((char*)ptr)+26),*(((char*)ptr)+27), \
134 *(((char*)ptr)+28),*(((char*)ptr)+29), \
135 *(((char*)ptr)+30),*(((char*)ptr)+31));
136
137 static inline void
138 qeth_hex_dump(unsigned char *buf, size_t len)
139 {
140 size_t i;
141
142 for (i = 0; i < len; i++) {
143 if (i && !(i % 16))
144 printk("\n");
145 printk("%02x ", *(buf + i));
146 }
147 printk("\n");
148 }
149
150 #define SENSE_COMMAND_REJECT_BYTE 0
151 #define SENSE_COMMAND_REJECT_FLAG 0x80
152 #define SENSE_RESETTING_EVENT_BYTE 1
153 #define SENSE_RESETTING_EVENT_FLAG 0x80
154
155 #define atomic_swap(a,b) xchg((int *)a.counter, b)
156
157 /*
158 * Common IO related definitions
159 */
160 extern struct device *qeth_root_dev;
161 extern struct ccw_driver qeth_ccw_driver;
162 extern struct ccwgroup_driver qeth_ccwgroup_driver;
163
164 #define CARD_RDEV(card) card->read.ccwdev
165 #define CARD_WDEV(card) card->write.ccwdev
166 #define CARD_DDEV(card) card->data.ccwdev
167 #define CARD_BUS_ID(card) card->gdev->dev.bus_id
168 #define CARD_RDEV_ID(card) card->read.ccwdev->dev.bus_id
169 #define CARD_WDEV_ID(card) card->write.ccwdev->dev.bus_id
170 #define CARD_DDEV_ID(card) card->data.ccwdev->dev.bus_id
171 #define CHANNEL_ID(channel) channel->ccwdev->dev.bus_id
172
173 #define CARD_FROM_CDEV(cdev) (struct qeth_card *) \
174 ((struct ccwgroup_device *)cdev->dev.driver_data)\
175 ->dev.driver_data;
176
177 /**
178 * card stuff
179 */
180 #ifdef CONFIG_QETH_PERF_STATS
181 struct qeth_perf_stats {
182 unsigned int bufs_rec;
183 unsigned int bufs_sent;
184
185 unsigned int skbs_sent_pack;
186 unsigned int bufs_sent_pack;
187
188 unsigned int sc_dp_p;
189 unsigned int sc_p_dp;
190 /* qdio_input_handler: number of times called, time spent in */
191 __u64 inbound_start_time;
192 unsigned int inbound_cnt;
193 unsigned int inbound_time;
194 /* qeth_send_packet: number of times called, time spent in */
195 __u64 outbound_start_time;
196 unsigned int outbound_cnt;
197 unsigned int outbound_time;
198 /* qdio_output_handler: number of times called, time spent in */
199 __u64 outbound_handler_start_time;
200 unsigned int outbound_handler_cnt;
201 unsigned int outbound_handler_time;
202 /* number of calls to and time spent in do_QDIO for inbound queue */
203 __u64 inbound_do_qdio_start_time;
204 unsigned int inbound_do_qdio_cnt;
205 unsigned int inbound_do_qdio_time;
206 /* number of calls to and time spent in do_QDIO for outbound queues */
207 __u64 outbound_do_qdio_start_time;
208 unsigned int outbound_do_qdio_cnt;
209 unsigned int outbound_do_qdio_time;
210 /* eddp data */
211 unsigned int large_send_bytes;
212 unsigned int large_send_cnt;
213 unsigned int sg_skbs_sent;
214 unsigned int sg_frags_sent;
215 };
216 #endif /* CONFIG_QETH_PERF_STATS */
217
218 /* Routing stuff */
219 struct qeth_routing_info {
220 enum qeth_routing_types type;
221 };
222
223 /* IPA stuff */
224 struct qeth_ipa_info {
225 __u32 supported_funcs;
226 __u32 enabled_funcs;
227 };
228
229 static inline int
230 qeth_is_ipa_supported(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
231 {
232 return (ipa->supported_funcs & func);
233 }
234
235 static inline int
236 qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
237 {
238 return (ipa->supported_funcs & ipa->enabled_funcs & func);
239 }
240
241 #define qeth_adp_supported(c,f) \
242 qeth_is_ipa_supported(&c->options.adp, f)
243 #define qeth_adp_enabled(c,f) \
244 qeth_is_ipa_enabled(&c->options.adp, f)
245 #define qeth_is_supported(c,f) \
246 qeth_is_ipa_supported(&c->options.ipa4, f)
247 #define qeth_is_enabled(c,f) \
248 qeth_is_ipa_enabled(&c->options.ipa4, f)
249 #ifdef CONFIG_QETH_IPV6
250 #define qeth_is_supported6(c,f) \
251 qeth_is_ipa_supported(&c->options.ipa6, f)
252 #define qeth_is_enabled6(c,f) \
253 qeth_is_ipa_enabled(&c->options.ipa6, f)
254 #else /* CONFIG_QETH_IPV6 */
255 #define qeth_is_supported6(c,f) 0
256 #define qeth_is_enabled6(c,f) 0
257 #endif /* CONFIG_QETH_IPV6 */
258 #define qeth_is_ipafunc_supported(c,prot,f) \
259 (prot==QETH_PROT_IPV6)? qeth_is_supported6(c,f):qeth_is_supported(c,f)
260 #define qeth_is_ipafunc_enabled(c,prot,f) \
261 (prot==QETH_PROT_IPV6)? qeth_is_enabled6(c,f):qeth_is_enabled(c,f)
262
263
264 #define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101
265 #define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101
266 #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108
267 #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108
268
269 #define QETH_MODELLIST_ARRAY \
270 {{0x1731,0x01,0x1732,0x01,QETH_CARD_TYPE_OSAE,1, \
271 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
272 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
273 QETH_MAX_QUEUES,0}, \
274 {0x1731,0x05,0x1732,0x05,QETH_CARD_TYPE_IQD,0, \
275 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \
276 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \
277 QETH_MAX_QUEUES,0x103}, \
278 {0,0,0,0,0,0,0,0,0}}
279
280 #define QETH_REAL_CARD 1
281 #define QETH_VLAN_CARD 2
282 #define QETH_BUFSIZE 4096
283
284 /**
285 * some more defs
286 */
287 #define IF_NAME_LEN 16
288 #define QETH_TX_TIMEOUT 100 * HZ
289 #define QETH_HEADER_SIZE 32
290 #define MAX_PORTNO 15
291 #define QETH_FAKE_LL_LEN ETH_HLEN
292 #define QETH_FAKE_LL_V6_ADDR_POS 24
293
294 /*IPv6 address autoconfiguration stuff*/
295 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
296 #define UNIQUE_ID_NOT_BY_CARD 0x10000
297
298 /*****************************************************************************/
299 /* QDIO queue and buffer handling */
300 /*****************************************************************************/
301 #define QETH_MAX_QUEUES 4
302 #define QETH_IN_BUF_SIZE_DEFAULT 65536
303 #define QETH_IN_BUF_COUNT_DEFAULT 16
304 #define QETH_IN_BUF_COUNT_MIN 8
305 #define QETH_IN_BUF_COUNT_MAX 128
306 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
307 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
308 ((card)->qdio.in_buf_pool.buf_count / 2)
309
310 /* buffers we have to be behind before we get a PCI */
311 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
312 /*enqueued free buffers left before we get a PCI*/
313 #define QETH_PCI_THRESHOLD_B(card) 0
314 /*not used unless the microcode gets patched*/
315 #define QETH_PCI_TIMER_VALUE(card) 3
316
317 #define QETH_MIN_INPUT_THRESHOLD 1
318 #define QETH_MAX_INPUT_THRESHOLD 500
319 #define QETH_MIN_OUTPUT_THRESHOLD 1
320 #define QETH_MAX_OUTPUT_THRESHOLD 300
321
322 /* priority queing */
323 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
324 #define QETH_DEFAULT_QUEUE 2
325 #define QETH_NO_PRIO_QUEUEING 0
326 #define QETH_PRIO_Q_ING_PREC 1
327 #define QETH_PRIO_Q_ING_TOS 2
328 #define IP_TOS_LOWDELAY 0x10
329 #define IP_TOS_HIGHTHROUGHPUT 0x08
330 #define IP_TOS_HIGHRELIABILITY 0x04
331 #define IP_TOS_NOTIMPORTANT 0x02
332
333 /* Packing */
334 #define QETH_LOW_WATERMARK_PACK 2
335 #define QETH_HIGH_WATERMARK_PACK 5
336 #define QETH_WATERMARK_PACK_FUZZ 1
337
338 #define QETH_IP_HEADER_SIZE 40
339
340 struct qeth_hdr_layer3 {
341 __u8 id;
342 __u8 flags;
343 __u16 inbound_checksum; /*TSO:__u16 seqno */
344 __u32 token; /*TSO: __u32 reserved */
345 __u16 length;
346 __u8 vlan_prio;
347 __u8 ext_flags;
348 __u16 vlan_id;
349 __u16 frame_offset;
350 __u8 dest_addr[16];
351 } __attribute__ ((packed));
352
353 struct qeth_hdr_layer2 {
354 __u8 id;
355 __u8 flags[3];
356 __u8 port_no;
357 __u8 hdr_length;
358 __u16 pkt_length;
359 __u16 seq_no;
360 __u16 vlan_id;
361 __u32 reserved;
362 __u8 reserved2[16];
363 } __attribute__ ((packed));
364
365 struct qeth_hdr {
366 union {
367 struct qeth_hdr_layer2 l2;
368 struct qeth_hdr_layer3 l3;
369 } hdr;
370 } __attribute__ ((packed));
371
372
373 /* flags for qeth_hdr.flags */
374 #define QETH_HDR_PASSTHRU 0x10
375 #define QETH_HDR_IPV6 0x80
376 #define QETH_HDR_CAST_MASK 0x07
377 enum qeth_cast_flags {
378 QETH_CAST_UNICAST = 0x06,
379 QETH_CAST_MULTICAST = 0x04,
380 QETH_CAST_BROADCAST = 0x05,
381 QETH_CAST_ANYCAST = 0x07,
382 QETH_CAST_NOCAST = 0x00,
383 };
384
385 enum qeth_layer2_frame_flags {
386 QETH_LAYER2_FLAG_MULTICAST = 0x01,
387 QETH_LAYER2_FLAG_BROADCAST = 0x02,
388 QETH_LAYER2_FLAG_UNICAST = 0x04,
389 QETH_LAYER2_FLAG_VLAN = 0x10,
390 };
391
392 enum qeth_header_ids {
393 QETH_HEADER_TYPE_LAYER3 = 0x01,
394 QETH_HEADER_TYPE_LAYER2 = 0x02,
395 QETH_HEADER_TYPE_TSO = 0x03,
396 };
397 /* flags for qeth_hdr.ext_flags */
398 #define QETH_HDR_EXT_VLAN_FRAME 0x01
399 #define QETH_HDR_EXT_TOKEN_ID 0x02
400 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
401 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
402 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
403 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
404 #define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/
405
406 static inline int
407 qeth_is_last_sbale(struct qdio_buffer_element *sbale)
408 {
409 return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
410 }
411
412 enum qeth_qdio_buffer_states {
413 /*
414 * inbound: read out by driver; owned by hardware in order to be filled
415 * outbound: owned by driver in order to be filled
416 */
417 QETH_QDIO_BUF_EMPTY,
418 /*
419 * inbound: filled by hardware; owned by driver in order to be read out
420 * outbound: filled by driver; owned by hardware in order to be sent
421 */
422 QETH_QDIO_BUF_PRIMED,
423 };
424
425 enum qeth_qdio_info_states {
426 QETH_QDIO_UNINITIALIZED,
427 QETH_QDIO_ALLOCATED,
428 QETH_QDIO_ESTABLISHED,
429 };
430
431 struct qeth_buffer_pool_entry {
432 struct list_head list;
433 struct list_head init_list;
434 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
435 };
436
437 struct qeth_qdio_buffer_pool {
438 struct list_head entry_list;
439 int buf_count;
440 };
441
442 struct qeth_qdio_buffer {
443 struct qdio_buffer *buffer;
444 volatile enum qeth_qdio_buffer_states state;
445 /* the buffer pool entry currently associated to this buffer */
446 struct qeth_buffer_pool_entry *pool_entry;
447 };
448
449 struct qeth_qdio_q {
450 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
451 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
452 /*
453 * buf_to_init means "buffer must be initialized by driver and must
454 * be made available for hardware" -> state is set to EMPTY
455 */
456 volatile int next_buf_to_init;
457 } __attribute__ ((aligned(256)));
458
459 /* possible types of qeth large_send support */
460 enum qeth_large_send_types {
461 QETH_LARGE_SEND_NO,
462 QETH_LARGE_SEND_EDDP,
463 QETH_LARGE_SEND_TSO,
464 };
465
466 struct qeth_qdio_out_buffer {
467 struct qdio_buffer *buffer;
468 atomic_t state;
469 volatile int next_element_to_fill;
470 struct sk_buff_head skb_list;
471 struct list_head ctx_list;
472 };
473
474 struct qeth_card;
475
476 enum qeth_out_q_states {
477 QETH_OUT_Q_UNLOCKED,
478 QETH_OUT_Q_LOCKED,
479 QETH_OUT_Q_LOCKED_FLUSH,
480 };
481
482 struct qeth_qdio_out_q {
483 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
484 struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
485 int queue_no;
486 struct qeth_card *card;
487 atomic_t state;
488 volatile int do_pack;
489 /*
490 * index of buffer to be filled by driver; state EMPTY or PACKING
491 */
492 volatile int next_buf_to_fill;
493 /*
494 * number of buffers that are currently filled (PRIMED)
495 * -> these buffers are hardware-owned
496 */
497 atomic_t used_buffers;
498 /* indicates whether PCI flag must be set (or if one is outstanding) */
499 atomic_t set_pci_flags_count;
500 } __attribute__ ((aligned(256)));
501
502 struct qeth_qdio_info {
503 volatile enum qeth_qdio_info_states state;
504 /* input */
505 struct qeth_qdio_q *in_q;
506 struct qeth_qdio_buffer_pool in_buf_pool;
507 struct qeth_qdio_buffer_pool init_pool;
508 int in_buf_size;
509
510 /* output */
511 int no_out_queues;
512 struct qeth_qdio_out_q **out_qs;
513
514 /* priority queueing */
515 int do_prio_queueing;
516 int default_out_queue;
517 };
518
519 enum qeth_send_errors {
520 QETH_SEND_ERROR_NONE,
521 QETH_SEND_ERROR_LINK_FAILURE,
522 QETH_SEND_ERROR_RETRY,
523 QETH_SEND_ERROR_KICK_IT,
524 };
525
526 #define QETH_ETH_MAC_V4 0x0100 /* like v4 */
527 #define QETH_ETH_MAC_V6 0x3333 /* like v6 */
528 /* tr mc mac is longer, but that will be enough to detect mc frames */
529 #define QETH_TR_MAC_NC 0xc000 /* non-canonical */
530 #define QETH_TR_MAC_C 0x0300 /* canonical */
531
532 #define DEFAULT_ADD_HHLEN 0
533 #define MAX_ADD_HHLEN 1024
534
535 /**
536 * buffer stuff for read channel
537 */
538 #define QETH_CMD_BUFFER_NO 8
539
540 /**
541 * channel state machine
542 */
543 enum qeth_channel_states {
544 CH_STATE_UP,
545 CH_STATE_DOWN,
546 CH_STATE_ACTIVATING,
547 CH_STATE_HALTED,
548 CH_STATE_STOPPED,
549 };
550 /**
551 * card state machine
552 */
553 enum qeth_card_states {
554 CARD_STATE_DOWN,
555 CARD_STATE_HARDSETUP,
556 CARD_STATE_SOFTSETUP,
557 CARD_STATE_UP,
558 CARD_STATE_RECOVER,
559 };
560
561 /**
562 * Protocol versions
563 */
564 enum qeth_prot_versions {
565 QETH_PROT_SNA = 0x0001,
566 QETH_PROT_IPV4 = 0x0004,
567 QETH_PROT_IPV6 = 0x0006,
568 };
569
570 enum qeth_ip_types {
571 QETH_IP_TYPE_NORMAL,
572 QETH_IP_TYPE_VIPA,
573 QETH_IP_TYPE_RXIP,
574 QETH_IP_TYPE_DEL_ALL_MC,
575 };
576
577 enum qeth_cmd_buffer_state {
578 BUF_STATE_FREE,
579 BUF_STATE_LOCKED,
580 BUF_STATE_PROCESSED,
581 };
582 /**
583 * IP address and multicast list
584 */
585 struct qeth_ipaddr {
586 struct list_head entry;
587 enum qeth_ip_types type;
588 enum qeth_ipa_setdelip_flags set_flags;
589 enum qeth_ipa_setdelip_flags del_flags;
590 int is_multicast;
591 volatile int users;
592 enum qeth_prot_versions proto;
593 unsigned char mac[OSA_ADDR_LEN];
594 union {
595 struct {
596 unsigned int addr;
597 unsigned int mask;
598 } a4;
599 struct {
600 struct in6_addr addr;
601 unsigned int pfxlen;
602 } a6;
603 } u;
604 };
605
606 struct qeth_ipato_entry {
607 struct list_head entry;
608 enum qeth_prot_versions proto;
609 char addr[16];
610 int mask_bits;
611 };
612
613 struct qeth_ipato {
614 int enabled;
615 int invert4;
616 int invert6;
617 struct list_head entries;
618 };
619
620 struct qeth_channel;
621
622 struct qeth_cmd_buffer {
623 enum qeth_cmd_buffer_state state;
624 struct qeth_channel *channel;
625 unsigned char *data;
626 int rc;
627 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
628 };
629
630
631 /**
632 * definition of a qeth channel, used for read and write
633 */
634 struct qeth_channel {
635 enum qeth_channel_states state;
636 struct ccw1 ccw;
637 spinlock_t iob_lock;
638 wait_queue_head_t wait_q;
639 struct tasklet_struct irq_tasklet;
640 struct ccw_device *ccwdev;
641 /*command buffer for control data*/
642 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
643 atomic_t irq_pending;
644 volatile int io_buf_no;
645 volatile int buf_no;
646 };
647
648 /**
649 * OSA card related definitions
650 */
651 struct qeth_token {
652 __u32 issuer_rm_w;
653 __u32 issuer_rm_r;
654 __u32 cm_filter_w;
655 __u32 cm_filter_r;
656 __u32 cm_connection_w;
657 __u32 cm_connection_r;
658 __u32 ulp_filter_w;
659 __u32 ulp_filter_r;
660 __u32 ulp_connection_w;
661 __u32 ulp_connection_r;
662 };
663
664 struct qeth_seqno {
665 __u32 trans_hdr;
666 __u32 pdu_hdr;
667 __u32 pdu_hdr_ack;
668 __u16 ipa;
669 };
670
671 struct qeth_reply {
672 struct list_head list;
673 wait_queue_head_t wait_q;
674 int (*callback)(struct qeth_card *,struct qeth_reply *,unsigned long);
675 u32 seqno;
676 unsigned long offset;
677 int received;
678 int rc;
679 void *param;
680 struct qeth_card *card;
681 atomic_t refcnt;
682 };
683
684 #define QETH_BROADCAST_WITH_ECHO 1
685 #define QETH_BROADCAST_WITHOUT_ECHO 2
686
687 struct qeth_card_blkt {
688 int time_total;
689 int inter_packet;
690 int inter_packet_jumbo;
691 };
692
693
694
695 struct qeth_card_info {
696 unsigned short unit_addr2;
697 unsigned short cula;
698 unsigned short chpid;
699 __u16 func_level;
700 char mcl_level[QETH_MCL_LENGTH + 1];
701 int guestlan;
702 int layer2_mac_registered;
703 int portname_required;
704 int portno;
705 char portname[9];
706 enum qeth_card_types type;
707 enum qeth_link_types link_type;
708 int is_multicast_different;
709 int initial_mtu;
710 int max_mtu;
711 int broadcast_capable;
712 int unique_id;
713 struct qeth_card_blkt blkt;
714 __u32 csum_mask;
715 };
716
717 struct qeth_card_options {
718 struct qeth_routing_info route4;
719 struct qeth_ipa_info ipa4;
720 struct qeth_ipa_info adp; /*Adapter parameters*/
721 #ifdef CONFIG_QETH_IPV6
722 struct qeth_routing_info route6;
723 struct qeth_ipa_info ipa6;
724 #endif /* QETH_IPV6 */
725 enum qeth_checksum_types checksum_type;
726 int broadcast_mode;
727 int macaddr_mode;
728 int fake_broadcast;
729 int add_hhlen;
730 int fake_ll;
731 int layer2;
732 enum qeth_large_send_types large_send;
733 };
734
735 /*
736 * thread bits for qeth_card thread masks
737 */
738 enum qeth_threads {
739 QETH_SET_IP_THREAD = 1,
740 QETH_RECOVER_THREAD = 2,
741 };
742
743 struct qeth_card {
744 struct list_head list;
745 enum qeth_card_states state;
746 int lan_online;
747 spinlock_t lock;
748 /*hardware and sysfs stuff*/
749 struct ccwgroup_device *gdev;
750 struct qeth_channel read;
751 struct qeth_channel write;
752 struct qeth_channel data;
753
754 struct net_device *dev;
755 struct net_device_stats stats;
756
757 struct qeth_card_info info;
758 struct qeth_token token;
759 struct qeth_seqno seqno;
760 struct qeth_card_options options;
761
762 wait_queue_head_t wait_q;
763 #ifdef CONFIG_QETH_VLAN
764 spinlock_t vlanlock;
765 struct vlan_group *vlangrp;
766 #endif
767 struct work_struct kernel_thread_starter;
768 spinlock_t thread_mask_lock;
769 volatile unsigned long thread_start_mask;
770 volatile unsigned long thread_allowed_mask;
771 volatile unsigned long thread_running_mask;
772 spinlock_t ip_lock;
773 struct list_head ip_list;
774 struct list_head *ip_tbd_list;
775 struct qeth_ipato ipato;
776 struct list_head cmd_waiter_list;
777 /* QDIO buffer handling */
778 struct qeth_qdio_info qdio;
779 #ifdef CONFIG_QETH_PERF_STATS
780 struct qeth_perf_stats perf_stats;
781 #endif /* CONFIG_QETH_PERF_STATS */
782 int use_hard_stop;
783 int (*orig_hard_header)(struct sk_buff *,struct net_device *,
784 unsigned short,void *,void *,unsigned);
785 };
786
787 struct qeth_card_list_struct {
788 struct list_head list;
789 rwlock_t rwlock;
790 };
791
792 extern struct qeth_card_list_struct qeth_card_list;
793
794 /*notifier list */
795 struct qeth_notify_list_struct {
796 struct list_head list;
797 struct task_struct *task;
798 int signum;
799 };
800 extern spinlock_t qeth_notify_lock;
801 extern struct list_head qeth_notify_list;
802
803 /*some helper functions*/
804
805 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
806
807 inline static __u8
808 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
809 {
810 switch (link_type) {
811 case QETH_LINK_TYPE_HSTR:
812 return 2;
813 default:
814 return 1;
815 }
816 }
817
818 inline static int
819 qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size)
820 {
821 struct sk_buff *new_skb = NULL;
822
823 if (skb_headroom(*skb) < size){
824 new_skb = skb_realloc_headroom(*skb, size);
825 if (!new_skb) {
826 PRINT_ERR("qeth_prepare_skb: could "
827 "not realloc headroom for qeth_hdr "
828 "on interface %s", QETH_CARD_IFNAME(card));
829 return -ENOMEM;
830 }
831 *skb = new_skb;
832 }
833 return 0;
834 }
835 static inline struct sk_buff *
836 qeth_pskb_unshare(struct sk_buff *skb, int pri)
837 {
838 struct sk_buff *nskb;
839 if (!skb_cloned(skb))
840 return skb;
841 nskb = skb_copy(skb, pri);
842 kfree_skb(skb); /* free our shared copy */
843 return nskb;
844 }
845
846
847 inline static void *
848 qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
849 {
850 void *hdr;
851
852 hdr = (void *) skb_push(*skb, size);
853 /*
854 * sanity check, the Linux memory allocation scheme should
855 * never present us cases like this one (the qdio header size plus
856 * the first 40 bytes of the paket cross a 4k boundary)
857 */
858 if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) !=
859 (((unsigned long) hdr + size +
860 QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
861 PRINT_ERR("qeth_prepare_skb: misaligned "
862 "packet on interface %s. Discarded.",
863 QETH_CARD_IFNAME(card));
864 return NULL;
865 }
866 return hdr;
867 }
868
869 inline static int
870 qeth_get_hlen(__u8 link_type)
871 {
872 #ifdef CONFIG_QETH_IPV6
873 switch (link_type) {
874 case QETH_LINK_TYPE_HSTR:
875 case QETH_LINK_TYPE_LANE_TR:
876 return sizeof(struct qeth_hdr) + TR_HLEN;
877 default:
878 #ifdef CONFIG_QETH_VLAN
879 return sizeof(struct qeth_hdr) + VLAN_ETH_HLEN;
880 #else
881 return sizeof(struct qeth_hdr) + ETH_HLEN;
882 #endif
883 }
884 #else /* CONFIG_QETH_IPV6 */
885 #ifdef CONFIG_QETH_VLAN
886 return sizeof(struct qeth_hdr) + VLAN_HLEN;
887 #else
888 return sizeof(struct qeth_hdr);
889 #endif
890 #endif /* CONFIG_QETH_IPV6 */
891 }
892
893 inline static unsigned short
894 qeth_get_netdev_flags(struct qeth_card *card)
895 {
896 if (card->options.layer2)
897 return 0;
898 switch (card->info.type) {
899 case QETH_CARD_TYPE_IQD:
900 return IFF_NOARP;
901 #ifdef CONFIG_QETH_IPV6
902 default:
903 return 0;
904 #else
905 default:
906 return IFF_NOARP;
907 #endif
908 }
909 }
910
911 inline static int
912 qeth_get_initial_mtu_for_card(struct qeth_card * card)
913 {
914 switch (card->info.type) {
915 case QETH_CARD_TYPE_UNKNOWN:
916 return 1500;
917 case QETH_CARD_TYPE_IQD:
918 return card->info.max_mtu;
919 case QETH_CARD_TYPE_OSAE:
920 switch (card->info.link_type) {
921 case QETH_LINK_TYPE_HSTR:
922 case QETH_LINK_TYPE_LANE_TR:
923 return 2000;
924 default:
925 return 1492;
926 }
927 default:
928 return 1500;
929 }
930 }
931
932 inline static int
933 qeth_get_max_mtu_for_card(int cardtype)
934 {
935 switch (cardtype) {
936 case QETH_CARD_TYPE_UNKNOWN:
937 return 61440;
938 case QETH_CARD_TYPE_OSAE:
939 return 61440;
940 case QETH_CARD_TYPE_IQD:
941 return 57344;
942 default:
943 return 1500;
944 }
945 }
946
947 inline static int
948 qeth_get_mtu_out_of_mpc(int cardtype)
949 {
950 switch (cardtype) {
951 case QETH_CARD_TYPE_IQD:
952 return 1;
953 default:
954 return 0;
955 }
956 }
957
958 inline static int
959 qeth_get_mtu_outof_framesize(int framesize)
960 {
961 switch (framesize) {
962 case 0x4000:
963 return 8192;
964 case 0x6000:
965 return 16384;
966 case 0xa000:
967 return 32768;
968 case 0xffff:
969 return 57344;
970 default:
971 return 0;
972 }
973 }
974
975 inline static int
976 qeth_mtu_is_valid(struct qeth_card * card, int mtu)
977 {
978 switch (card->info.type) {
979 case QETH_CARD_TYPE_OSAE:
980 return ((mtu >= 576) && (mtu <= 61440));
981 case QETH_CARD_TYPE_IQD:
982 return ((mtu >= 576) &&
983 (mtu <= card->info.max_mtu + 4096 - 32));
984 case QETH_CARD_TYPE_UNKNOWN:
985 default:
986 return 1;
987 }
988 }
989
990 inline static int
991 qeth_get_arphdr_type(int cardtype, int linktype)
992 {
993 switch (cardtype) {
994 case QETH_CARD_TYPE_OSAE:
995 switch (linktype) {
996 case QETH_LINK_TYPE_LANE_TR:
997 case QETH_LINK_TYPE_HSTR:
998 return ARPHRD_IEEE802_TR;
999 default:
1000 return ARPHRD_ETHER;
1001 }
1002 case QETH_CARD_TYPE_IQD:
1003 default:
1004 return ARPHRD_ETHER;
1005 }
1006 }
1007
1008 #ifdef CONFIG_QETH_PERF_STATS
1009 inline static int
1010 qeth_get_micros(void)
1011 {
1012 return (int) (get_clock() >> 12);
1013 }
1014 #endif
1015
1016 static inline int
1017 qeth_get_qdio_q_format(struct qeth_card *card)
1018 {
1019 switch (card->info.type) {
1020 case QETH_CARD_TYPE_IQD:
1021 return 2;
1022 default:
1023 return 0;
1024 }
1025 }
1026
1027 static inline void
1028 qeth_ipaddr4_to_string(const __u8 *addr, char *buf)
1029 {
1030 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
1031 }
1032
1033 static inline int
1034 qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
1035 {
1036 const char *start, *end;
1037 char abuf[4];
1038 char *tmp;
1039 int len;
1040 int i;
1041
1042 start = buf;
1043 for (i = 0; i < 3; i++) {
1044 if (!(end = strchr(start, '.')))
1045 return -EINVAL;
1046 len = end - start;
1047 memset(abuf, 0, 4);
1048 strncpy(abuf, start, len);
1049 addr[i] = simple_strtoul(abuf, &tmp, 10);
1050 start = end + 1;
1051 }
1052 memset(abuf, 0, 4);
1053 strcpy(abuf, start);
1054 addr[3] = simple_strtoul(abuf, &tmp, 10);
1055 return 0;
1056 }
1057
1058 static inline void
1059 qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
1060 {
1061 sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
1062 ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
1063 addr[0], addr[1], addr[2], addr[3],
1064 addr[4], addr[5], addr[6], addr[7],
1065 addr[8], addr[9], addr[10], addr[11],
1066 addr[12], addr[13], addr[14], addr[15]);
1067 }
1068
1069 static inline int
1070 qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
1071 {
1072 const char *start, *end;
1073 u16 *tmp_addr;
1074 char abuf[5];
1075 char *tmp;
1076 int len;
1077 int i;
1078
1079 tmp_addr = (u16 *)addr;
1080 start = buf;
1081 for (i = 0; i < 7; i++) {
1082 if (!(end = strchr(start, ':')))
1083 return -EINVAL;
1084 len = end - start;
1085 memset(abuf, 0, 5);
1086 strncpy(abuf, start, len);
1087 tmp_addr[i] = simple_strtoul(abuf, &tmp, 16);
1088 start = end + 1;
1089 }
1090 memset(abuf, 0, 5);
1091 strcpy(abuf, start);
1092 tmp_addr[7] = simple_strtoul(abuf, &tmp, 16);
1093 return 0;
1094 }
1095
1096 static inline void
1097 qeth_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
1098 char *buf)
1099 {
1100 if (proto == QETH_PROT_IPV4)
1101 return qeth_ipaddr4_to_string(addr, buf);
1102 else if (proto == QETH_PROT_IPV6)
1103 return qeth_ipaddr6_to_string(addr, buf);
1104 }
1105
1106 static inline int
1107 qeth_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
1108 __u8 *addr)
1109 {
1110 if (proto == QETH_PROT_IPV4)
1111 return qeth_string_to_ipaddr4(buf, addr);
1112 else if (proto == QETH_PROT_IPV6)
1113 return qeth_string_to_ipaddr6(buf, addr);
1114 else
1115 return -EINVAL;
1116 }
1117
1118 extern int
1119 qeth_setrouting_v4(struct qeth_card *);
1120 extern int
1121 qeth_setrouting_v6(struct qeth_card *);
1122
1123 extern int
1124 qeth_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
1125
1126 extern void
1127 qeth_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions, u8 *, int);
1128
1129 extern int
1130 qeth_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1131
1132 extern void
1133 qeth_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1134
1135 extern int
1136 qeth_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1137
1138 extern void
1139 qeth_del_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1140
1141 extern int
1142 qeth_notifier_register(struct task_struct *, int );
1143
1144 extern int
1145 qeth_notifier_unregister(struct task_struct * );
1146
1147 extern void
1148 qeth_schedule_recovery(struct qeth_card *);
1149
1150 extern int
1151 qeth_realloc_buffer_pool(struct qeth_card *, int);
1152
1153 extern int
1154 qeth_set_large_send(struct qeth_card *);
1155
1156 extern void
1157 qeth_fill_header(struct qeth_card *, struct qeth_hdr *,
1158 struct sk_buff *, int, int);
1159 extern void
1160 qeth_flush_buffers(struct qeth_qdio_out_q *, int, int, int);
1161
1162 #endif /* __QETH_H__ */
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