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Merge upstream 2.6.13-rc3 into ieee80211 branch of netdev-2.6.
[deliverable/linux.git] / drivers / s390 / net / qeth.h
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: 1.139 $"
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_PAGES 8
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_PAGES 2
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_PAGES 8
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_PAGES 8
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_PAGES 4
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_PAGES 2
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_PAGES 2
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 ETH_HLEN
292 #define QETH_FAKE_LL_LEN_TR (sizeof(struct trh_hdr)-TR_MAXRIFLEN+sizeof(struct trllc))
293 #define QETH_FAKE_LL_V6_ADDR_POS 24
294
295 /*IPv6 address autoconfiguration stuff*/
296 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
297 #define UNIQUE_ID_NOT_BY_CARD 0x10000
298
299 /*****************************************************************************/
300 /* QDIO queue and buffer handling */
301 /*****************************************************************************/
302 #define QETH_MAX_QUEUES 4
303 #define QETH_IN_BUF_SIZE_DEFAULT 65536
304 #define QETH_IN_BUF_COUNT_DEFAULT 16
305 #define QETH_IN_BUF_COUNT_MIN 8
306 #define QETH_IN_BUF_COUNT_MAX 128
307 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
308 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
309 ((card)->qdio.in_buf_pool.buf_count / 2)
310
311 /* buffers we have to be behind before we get a PCI */
312 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
313 /*enqueued free buffers left before we get a PCI*/
314 #define QETH_PCI_THRESHOLD_B(card) 0
315 /*not used unless the microcode gets patched*/
316 #define QETH_PCI_TIMER_VALUE(card) 3
317
318 #define QETH_MIN_INPUT_THRESHOLD 1
319 #define QETH_MAX_INPUT_THRESHOLD 500
320 #define QETH_MIN_OUTPUT_THRESHOLD 1
321 #define QETH_MAX_OUTPUT_THRESHOLD 300
322
323 /* priority queing */
324 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
325 #define QETH_DEFAULT_QUEUE 2
326 #define QETH_NO_PRIO_QUEUEING 0
327 #define QETH_PRIO_Q_ING_PREC 1
328 #define QETH_PRIO_Q_ING_TOS 2
329 #define IP_TOS_LOWDELAY 0x10
330 #define IP_TOS_HIGHTHROUGHPUT 0x08
331 #define IP_TOS_HIGHRELIABILITY 0x04
332 #define IP_TOS_NOTIMPORTANT 0x02
333
334 /* Packing */
335 #define QETH_LOW_WATERMARK_PACK 2
336 #define QETH_HIGH_WATERMARK_PACK 5
337 #define QETH_WATERMARK_PACK_FUZZ 1
338
339 #define QETH_IP_HEADER_SIZE 40
340
341 struct qeth_hdr_layer3 {
342 __u8 id;
343 __u8 flags;
344 __u16 inbound_checksum; /*TSO:__u16 seqno */
345 __u32 token; /*TSO: __u32 reserved */
346 __u16 length;
347 __u8 vlan_prio;
348 __u8 ext_flags;
349 __u16 vlan_id;
350 __u16 frame_offset;
351 __u8 dest_addr[16];
352 } __attribute__ ((packed));
353
354 struct qeth_hdr_layer2 {
355 __u8 id;
356 __u8 flags[3];
357 __u8 port_no;
358 __u8 hdr_length;
359 __u16 pkt_length;
360 __u16 seq_no;
361 __u16 vlan_id;
362 __u32 reserved;
363 __u8 reserved2[16];
364 } __attribute__ ((packed));
365
366 struct qeth_hdr {
367 union {
368 struct qeth_hdr_layer2 l2;
369 struct qeth_hdr_layer3 l3;
370 } hdr;
371 } __attribute__ ((packed));
372
373 /*TCP Segmentation Offload header*/
374 struct qeth_hdr_ext_tso {
375 __u16 hdr_tot_len;
376 __u8 imb_hdr_no;
377 __u8 reserved;
378 __u8 hdr_type;
379 __u8 hdr_version;
380 __u16 hdr_len;
381 __u32 payload_len;
382 __u16 mss;
383 __u16 dg_hdr_len;
384 __u8 padding[16];
385 } __attribute__ ((packed));
386
387 struct qeth_hdr_tso {
388 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
389 struct qeth_hdr_ext_tso ext;
390 } __attribute__ ((packed));
391
392
393 /* flags for qeth_hdr.flags */
394 #define QETH_HDR_PASSTHRU 0x10
395 #define QETH_HDR_IPV6 0x80
396 #define QETH_HDR_CAST_MASK 0x07
397 enum qeth_cast_flags {
398 QETH_CAST_UNICAST = 0x06,
399 QETH_CAST_MULTICAST = 0x04,
400 QETH_CAST_BROADCAST = 0x05,
401 QETH_CAST_ANYCAST = 0x07,
402 QETH_CAST_NOCAST = 0x00,
403 };
404
405 enum qeth_layer2_frame_flags {
406 QETH_LAYER2_FLAG_MULTICAST = 0x01,
407 QETH_LAYER2_FLAG_BROADCAST = 0x02,
408 QETH_LAYER2_FLAG_UNICAST = 0x04,
409 QETH_LAYER2_FLAG_VLAN = 0x10,
410 };
411
412 enum qeth_header_ids {
413 QETH_HEADER_TYPE_LAYER3 = 0x01,
414 QETH_HEADER_TYPE_LAYER2 = 0x02,
415 QETH_HEADER_TYPE_TSO = 0x03,
416 };
417 /* flags for qeth_hdr.ext_flags */
418 #define QETH_HDR_EXT_VLAN_FRAME 0x01
419 #define QETH_HDR_EXT_TOKEN_ID 0x02
420 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
421 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
422 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
423 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
424 #define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/
425
426 static inline int
427 qeth_is_last_sbale(struct qdio_buffer_element *sbale)
428 {
429 return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
430 }
431
432 enum qeth_qdio_buffer_states {
433 /*
434 * inbound: read out by driver; owned by hardware in order to be filled
435 * outbound: owned by driver in order to be filled
436 */
437 QETH_QDIO_BUF_EMPTY,
438 /*
439 * inbound: filled by hardware; owned by driver in order to be read out
440 * outbound: filled by driver; owned by hardware in order to be sent
441 */
442 QETH_QDIO_BUF_PRIMED,
443 };
444
445 enum qeth_qdio_info_states {
446 QETH_QDIO_UNINITIALIZED,
447 QETH_QDIO_ALLOCATED,
448 QETH_QDIO_ESTABLISHED,
449 };
450
451 struct qeth_buffer_pool_entry {
452 struct list_head list;
453 struct list_head init_list;
454 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
455 };
456
457 struct qeth_qdio_buffer_pool {
458 struct list_head entry_list;
459 int buf_count;
460 };
461
462 struct qeth_qdio_buffer {
463 struct qdio_buffer *buffer;
464 volatile enum qeth_qdio_buffer_states state;
465 /* the buffer pool entry currently associated to this buffer */
466 struct qeth_buffer_pool_entry *pool_entry;
467 };
468
469 struct qeth_qdio_q {
470 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
471 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
472 /*
473 * buf_to_init means "buffer must be initialized by driver and must
474 * be made available for hardware" -> state is set to EMPTY
475 */
476 volatile int next_buf_to_init;
477 } __attribute__ ((aligned(256)));
478
479 /* possible types of qeth large_send support */
480 enum qeth_large_send_types {
481 QETH_LARGE_SEND_NO,
482 QETH_LARGE_SEND_EDDP,
483 QETH_LARGE_SEND_TSO,
484 };
485
486 struct qeth_qdio_out_buffer {
487 struct qdio_buffer *buffer;
488 atomic_t state;
489 volatile int next_element_to_fill;
490 struct sk_buff_head skb_list;
491 struct list_head ctx_list;
492 };
493
494 struct qeth_card;
495
496 enum qeth_out_q_states {
497 QETH_OUT_Q_UNLOCKED,
498 QETH_OUT_Q_LOCKED,
499 QETH_OUT_Q_LOCKED_FLUSH,
500 };
501
502 struct qeth_qdio_out_q {
503 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
504 struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
505 int queue_no;
506 struct qeth_card *card;
507 atomic_t state;
508 volatile int do_pack;
509 /*
510 * index of buffer to be filled by driver; state EMPTY or PACKING
511 */
512 volatile int next_buf_to_fill;
513 /*
514 * number of buffers that are currently filled (PRIMED)
515 * -> these buffers are hardware-owned
516 */
517 atomic_t used_buffers;
518 /* indicates whether PCI flag must be set (or if one is outstanding) */
519 atomic_t set_pci_flags_count;
520 } __attribute__ ((aligned(256)));
521
522 struct qeth_qdio_info {
523 volatile enum qeth_qdio_info_states state;
524 /* input */
525 struct qeth_qdio_q *in_q;
526 struct qeth_qdio_buffer_pool in_buf_pool;
527 struct qeth_qdio_buffer_pool init_pool;
528 int in_buf_size;
529
530 /* output */
531 int no_out_queues;
532 struct qeth_qdio_out_q **out_qs;
533
534 /* priority queueing */
535 int do_prio_queueing;
536 int default_out_queue;
537 };
538
539 enum qeth_send_errors {
540 QETH_SEND_ERROR_NONE,
541 QETH_SEND_ERROR_LINK_FAILURE,
542 QETH_SEND_ERROR_RETRY,
543 QETH_SEND_ERROR_KICK_IT,
544 };
545
546 #define QETH_ETH_MAC_V4 0x0100 /* like v4 */
547 #define QETH_ETH_MAC_V6 0x3333 /* like v6 */
548 /* tr mc mac is longer, but that will be enough to detect mc frames */
549 #define QETH_TR_MAC_NC 0xc000 /* non-canonical */
550 #define QETH_TR_MAC_C 0x0300 /* canonical */
551
552 #define DEFAULT_ADD_HHLEN 0
553 #define MAX_ADD_HHLEN 1024
554
555 /**
556 * buffer stuff for read channel
557 */
558 #define QETH_CMD_BUFFER_NO 8
559
560 /**
561 * channel state machine
562 */
563 enum qeth_channel_states {
564 CH_STATE_UP,
565 CH_STATE_DOWN,
566 CH_STATE_ACTIVATING,
567 CH_STATE_HALTED,
568 CH_STATE_STOPPED,
569 };
570 /**
571 * card state machine
572 */
573 enum qeth_card_states {
574 CARD_STATE_DOWN,
575 CARD_STATE_HARDSETUP,
576 CARD_STATE_SOFTSETUP,
577 CARD_STATE_UP,
578 CARD_STATE_RECOVER,
579 };
580
581 /**
582 * Protocol versions
583 */
584 enum qeth_prot_versions {
585 QETH_PROT_SNA = 0x0001,
586 QETH_PROT_IPV4 = 0x0004,
587 QETH_PROT_IPV6 = 0x0006,
588 };
589
590 enum qeth_ip_types {
591 QETH_IP_TYPE_NORMAL,
592 QETH_IP_TYPE_VIPA,
593 QETH_IP_TYPE_RXIP,
594 QETH_IP_TYPE_DEL_ALL_MC,
595 };
596
597 enum qeth_cmd_buffer_state {
598 BUF_STATE_FREE,
599 BUF_STATE_LOCKED,
600 BUF_STATE_PROCESSED,
601 };
602 /**
603 * IP address and multicast list
604 */
605 struct qeth_ipaddr {
606 struct list_head entry;
607 enum qeth_ip_types type;
608 enum qeth_ipa_setdelip_flags set_flags;
609 enum qeth_ipa_setdelip_flags del_flags;
610 int is_multicast;
611 volatile int users;
612 enum qeth_prot_versions proto;
613 unsigned char mac[OSA_ADDR_LEN];
614 union {
615 struct {
616 unsigned int addr;
617 unsigned int mask;
618 } a4;
619 struct {
620 struct in6_addr addr;
621 unsigned int pfxlen;
622 } a6;
623 } u;
624 };
625
626 struct qeth_ipato_entry {
627 struct list_head entry;
628 enum qeth_prot_versions proto;
629 char addr[16];
630 int mask_bits;
631 };
632
633 struct qeth_ipato {
634 int enabled;
635 int invert4;
636 int invert6;
637 struct list_head entries;
638 };
639
640 struct qeth_channel;
641
642 struct qeth_cmd_buffer {
643 enum qeth_cmd_buffer_state state;
644 struct qeth_channel *channel;
645 unsigned char *data;
646 int rc;
647 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
648 };
649
650
651 /**
652 * definition of a qeth channel, used for read and write
653 */
654 struct qeth_channel {
655 enum qeth_channel_states state;
656 struct ccw1 ccw;
657 spinlock_t iob_lock;
658 wait_queue_head_t wait_q;
659 struct tasklet_struct irq_tasklet;
660 struct ccw_device *ccwdev;
661 /*command buffer for control data*/
662 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
663 atomic_t irq_pending;
664 volatile int io_buf_no;
665 volatile int buf_no;
666 };
667
668 /**
669 * OSA card related definitions
670 */
671 struct qeth_token {
672 __u32 issuer_rm_w;
673 __u32 issuer_rm_r;
674 __u32 cm_filter_w;
675 __u32 cm_filter_r;
676 __u32 cm_connection_w;
677 __u32 cm_connection_r;
678 __u32 ulp_filter_w;
679 __u32 ulp_filter_r;
680 __u32 ulp_connection_w;
681 __u32 ulp_connection_r;
682 };
683
684 struct qeth_seqno {
685 __u32 trans_hdr;
686 __u32 pdu_hdr;
687 __u32 pdu_hdr_ack;
688 __u16 ipa;
689 };
690
691 struct qeth_reply {
692 struct list_head list;
693 wait_queue_head_t wait_q;
694 int (*callback)(struct qeth_card *,struct qeth_reply *,unsigned long);
695 u32 seqno;
696 unsigned long offset;
697 int received;
698 int rc;
699 void *param;
700 struct qeth_card *card;
701 atomic_t refcnt;
702 };
703
704 #define QETH_BROADCAST_WITH_ECHO 1
705 #define QETH_BROADCAST_WITHOUT_ECHO 2
706
707 struct qeth_card_blkt {
708 int time_total;
709 int inter_packet;
710 int inter_packet_jumbo;
711 };
712
713
714
715 struct qeth_card_info {
716 unsigned short unit_addr2;
717 unsigned short cula;
718 unsigned short chpid;
719 __u16 func_level;
720 char mcl_level[QETH_MCL_LENGTH + 1];
721 int guestlan;
722 int layer2_mac_registered;
723 int portname_required;
724 int portno;
725 char portname[9];
726 enum qeth_card_types type;
727 enum qeth_link_types link_type;
728 int is_multicast_different;
729 int initial_mtu;
730 int max_mtu;
731 int broadcast_capable;
732 int unique_id;
733 struct qeth_card_blkt blkt;
734 __u32 csum_mask;
735 };
736
737 struct qeth_card_options {
738 struct qeth_routing_info route4;
739 struct qeth_ipa_info ipa4;
740 struct qeth_ipa_info adp; /*Adapter parameters*/
741 #ifdef CONFIG_QETH_IPV6
742 struct qeth_routing_info route6;
743 struct qeth_ipa_info ipa6;
744 #endif /* QETH_IPV6 */
745 enum qeth_checksum_types checksum_type;
746 int broadcast_mode;
747 int macaddr_mode;
748 int fake_broadcast;
749 int add_hhlen;
750 int fake_ll;
751 int layer2;
752 enum qeth_large_send_types large_send;
753 };
754
755 /*
756 * thread bits for qeth_card thread masks
757 */
758 enum qeth_threads {
759 QETH_SET_IP_THREAD = 1,
760 QETH_RECOVER_THREAD = 2,
761 };
762
763 struct qeth_card {
764 struct list_head list;
765 enum qeth_card_states state;
766 int lan_online;
767 spinlock_t lock;
768 /*hardware and sysfs stuff*/
769 struct ccwgroup_device *gdev;
770 struct qeth_channel read;
771 struct qeth_channel write;
772 struct qeth_channel data;
773
774 struct net_device *dev;
775 struct net_device_stats stats;
776
777 struct qeth_card_info info;
778 struct qeth_token token;
779 struct qeth_seqno seqno;
780 struct qeth_card_options options;
781
782 wait_queue_head_t wait_q;
783 #ifdef CONFIG_QETH_VLAN
784 spinlock_t vlanlock;
785 struct vlan_group *vlangrp;
786 #endif
787 struct work_struct kernel_thread_starter;
788 spinlock_t thread_mask_lock;
789 volatile unsigned long thread_start_mask;
790 volatile unsigned long thread_allowed_mask;
791 volatile unsigned long thread_running_mask;
792 spinlock_t ip_lock;
793 struct list_head ip_list;
794 struct list_head *ip_tbd_list;
795 struct qeth_ipato ipato;
796 struct list_head cmd_waiter_list;
797 /* QDIO buffer handling */
798 struct qeth_qdio_info qdio;
799 #ifdef CONFIG_QETH_PERF_STATS
800 struct qeth_perf_stats perf_stats;
801 #endif /* CONFIG_QETH_PERF_STATS */
802 int use_hard_stop;
803 int (*orig_hard_header)(struct sk_buff *,struct net_device *,
804 unsigned short,void *,void *,unsigned);
805 };
806
807 struct qeth_card_list_struct {
808 struct list_head list;
809 rwlock_t rwlock;
810 };
811
812 extern struct qeth_card_list_struct qeth_card_list;
813
814 /*notifier list */
815 struct qeth_notify_list_struct {
816 struct list_head list;
817 struct task_struct *task;
818 int signum;
819 };
820 extern spinlock_t qeth_notify_lock;
821 extern struct list_head qeth_notify_list;
822
823 /*some helper functions*/
824
825 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
826
827 inline static __u8
828 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
829 {
830 switch (link_type) {
831 case QETH_LINK_TYPE_HSTR:
832 return 2;
833 default:
834 return 1;
835 }
836 }
837
838 inline static int
839 qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size)
840 {
841 struct sk_buff *new_skb = NULL;
842
843 if (skb_headroom(*skb) < size){
844 new_skb = skb_realloc_headroom(*skb, size);
845 if (!new_skb) {
846 PRINT_ERR("qeth_prepare_skb: could "
847 "not realloc headroom for qeth_hdr "
848 "on interface %s", QETH_CARD_IFNAME(card));
849 return -ENOMEM;
850 }
851 *skb = new_skb;
852 }
853 return 0;
854 }
855 static inline struct sk_buff *
856 qeth_pskb_unshare(struct sk_buff *skb, int pri)
857 {
858 struct sk_buff *nskb;
859 if (!skb_cloned(skb))
860 return skb;
861 nskb = skb_copy(skb, pri);
862 kfree_skb(skb); /* free our shared copy */
863 return nskb;
864 }
865
866
867 inline static void *
868 qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
869 {
870 void *hdr;
871
872 hdr = (void *) skb_push(*skb, size);
873 /*
874 * sanity check, the Linux memory allocation scheme should
875 * never present us cases like this one (the qdio header size plus
876 * the first 40 bytes of the paket cross a 4k boundary)
877 */
878 if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) !=
879 (((unsigned long) hdr + size +
880 QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
881 PRINT_ERR("qeth_prepare_skb: misaligned "
882 "packet on interface %s. Discarded.",
883 QETH_CARD_IFNAME(card));
884 return NULL;
885 }
886 return hdr;
887 }
888
889
890 inline static int
891 qeth_get_hlen(__u8 link_type)
892 {
893 #ifdef CONFIG_QETH_IPV6
894 switch (link_type) {
895 case QETH_LINK_TYPE_HSTR:
896 case QETH_LINK_TYPE_LANE_TR:
897 return sizeof(struct qeth_hdr_tso) + TR_HLEN;
898 default:
899 #ifdef CONFIG_QETH_VLAN
900 return sizeof(struct qeth_hdr_tso) + VLAN_ETH_HLEN;
901 #else
902 return sizeof(struct qeth_hdr_tso) + ETH_HLEN;
903 #endif
904 }
905 #else /* CONFIG_QETH_IPV6 */
906 #ifdef CONFIG_QETH_VLAN
907 return sizeof(struct qeth_hdr_tso) + VLAN_HLEN;
908 #else
909 return sizeof(struct qeth_hdr_tso);
910 #endif
911 #endif /* CONFIG_QETH_IPV6 */
912 }
913
914 inline static unsigned short
915 qeth_get_netdev_flags(struct qeth_card *card)
916 {
917 if (card->options.layer2)
918 return 0;
919 switch (card->info.type) {
920 case QETH_CARD_TYPE_IQD:
921 return IFF_NOARP;
922 #ifdef CONFIG_QETH_IPV6
923 default:
924 return 0;
925 #else
926 default:
927 return IFF_NOARP;
928 #endif
929 }
930 }
931
932 inline static int
933 qeth_get_initial_mtu_for_card(struct qeth_card * card)
934 {
935 switch (card->info.type) {
936 case QETH_CARD_TYPE_UNKNOWN:
937 return 1500;
938 case QETH_CARD_TYPE_IQD:
939 return card->info.max_mtu;
940 case QETH_CARD_TYPE_OSAE:
941 switch (card->info.link_type) {
942 case QETH_LINK_TYPE_HSTR:
943 case QETH_LINK_TYPE_LANE_TR:
944 return 2000;
945 default:
946 return 1492;
947 }
948 default:
949 return 1500;
950 }
951 }
952
953 inline static int
954 qeth_get_max_mtu_for_card(int cardtype)
955 {
956 switch (cardtype) {
957 case QETH_CARD_TYPE_UNKNOWN:
958 return 61440;
959 case QETH_CARD_TYPE_OSAE:
960 return 61440;
961 case QETH_CARD_TYPE_IQD:
962 return 57344;
963 default:
964 return 1500;
965 }
966 }
967
968 inline static int
969 qeth_get_mtu_out_of_mpc(int cardtype)
970 {
971 switch (cardtype) {
972 case QETH_CARD_TYPE_IQD:
973 return 1;
974 default:
975 return 0;
976 }
977 }
978
979 inline static int
980 qeth_get_mtu_outof_framesize(int framesize)
981 {
982 switch (framesize) {
983 case 0x4000:
984 return 8192;
985 case 0x6000:
986 return 16384;
987 case 0xa000:
988 return 32768;
989 case 0xffff:
990 return 57344;
991 default:
992 return 0;
993 }
994 }
995
996 inline static int
997 qeth_mtu_is_valid(struct qeth_card * card, int mtu)
998 {
999 switch (card->info.type) {
1000 case QETH_CARD_TYPE_OSAE:
1001 return ((mtu >= 576) && (mtu <= 61440));
1002 case QETH_CARD_TYPE_IQD:
1003 return ((mtu >= 576) &&
1004 (mtu <= card->info.max_mtu + 4096 - 32));
1005 case QETH_CARD_TYPE_UNKNOWN:
1006 default:
1007 return 1;
1008 }
1009 }
1010
1011 inline static int
1012 qeth_get_arphdr_type(int cardtype, int linktype)
1013 {
1014 switch (cardtype) {
1015 case QETH_CARD_TYPE_OSAE:
1016 switch (linktype) {
1017 case QETH_LINK_TYPE_LANE_TR:
1018 case QETH_LINK_TYPE_HSTR:
1019 return ARPHRD_IEEE802_TR;
1020 default:
1021 return ARPHRD_ETHER;
1022 }
1023 case QETH_CARD_TYPE_IQD:
1024 default:
1025 return ARPHRD_ETHER;
1026 }
1027 }
1028
1029 #ifdef CONFIG_QETH_PERF_STATS
1030 inline static int
1031 qeth_get_micros(void)
1032 {
1033 return (int) (get_clock() >> 12);
1034 }
1035 #endif
1036
1037 static inline int
1038 qeth_get_qdio_q_format(struct qeth_card *card)
1039 {
1040 switch (card->info.type) {
1041 case QETH_CARD_TYPE_IQD:
1042 return 2;
1043 default:
1044 return 0;
1045 }
1046 }
1047
1048 static inline void
1049 qeth_ipaddr4_to_string(const __u8 *addr, char *buf)
1050 {
1051 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
1052 }
1053
1054 static inline int
1055 qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
1056 {
1057 const char *start, *end;
1058 char abuf[4];
1059 char *tmp;
1060 int len;
1061 int i;
1062
1063 start = buf;
1064 for (i = 0; i < 3; i++) {
1065 if (!(end = strchr(start, '.')))
1066 return -EINVAL;
1067 len = end - start;
1068 memset(abuf, 0, 4);
1069 strncpy(abuf, start, len);
1070 addr[i] = simple_strtoul(abuf, &tmp, 10);
1071 start = end + 1;
1072 }
1073 memset(abuf, 0, 4);
1074 strcpy(abuf, start);
1075 addr[3] = simple_strtoul(abuf, &tmp, 10);
1076 return 0;
1077 }
1078
1079 static inline void
1080 qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
1081 {
1082 sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
1083 ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
1084 addr[0], addr[1], addr[2], addr[3],
1085 addr[4], addr[5], addr[6], addr[7],
1086 addr[8], addr[9], addr[10], addr[11],
1087 addr[12], addr[13], addr[14], addr[15]);
1088 }
1089
1090 static inline int
1091 qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
1092 {
1093 const char *start, *end;
1094 u16 *tmp_addr;
1095 char abuf[5];
1096 char *tmp;
1097 int len;
1098 int i;
1099
1100 tmp_addr = (u16 *)addr;
1101 start = buf;
1102 for (i = 0; i < 7; i++) {
1103 if (!(end = strchr(start, ':')))
1104 return -EINVAL;
1105 len = end - start;
1106 memset(abuf, 0, 5);
1107 strncpy(abuf, start, len);
1108 tmp_addr[i] = simple_strtoul(abuf, &tmp, 16);
1109 start = end + 1;
1110 }
1111 memset(abuf, 0, 5);
1112 strcpy(abuf, start);
1113 tmp_addr[7] = simple_strtoul(abuf, &tmp, 16);
1114 return 0;
1115 }
1116
1117 static inline void
1118 qeth_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
1119 char *buf)
1120 {
1121 if (proto == QETH_PROT_IPV4)
1122 return qeth_ipaddr4_to_string(addr, buf);
1123 else if (proto == QETH_PROT_IPV6)
1124 return qeth_ipaddr6_to_string(addr, buf);
1125 }
1126
1127 static inline int
1128 qeth_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
1129 __u8 *addr)
1130 {
1131 if (proto == QETH_PROT_IPV4)
1132 return qeth_string_to_ipaddr4(buf, addr);
1133 else if (proto == QETH_PROT_IPV6)
1134 return qeth_string_to_ipaddr6(buf, addr);
1135 else
1136 return -EINVAL;
1137 }
1138
1139 extern int
1140 qeth_setrouting_v4(struct qeth_card *);
1141 extern int
1142 qeth_setrouting_v6(struct qeth_card *);
1143
1144 extern int
1145 qeth_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
1146
1147 extern void
1148 qeth_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions, u8 *, int);
1149
1150 extern int
1151 qeth_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1152
1153 extern void
1154 qeth_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1155
1156 extern int
1157 qeth_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1158
1159 extern void
1160 qeth_del_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1161
1162 extern int
1163 qeth_notifier_register(struct task_struct *, int );
1164
1165 extern int
1166 qeth_notifier_unregister(struct task_struct * );
1167
1168 extern void
1169 qeth_schedule_recovery(struct qeth_card *);
1170
1171 extern int
1172 qeth_realloc_buffer_pool(struct qeth_card *, int);
1173
1174 extern int
1175 qeth_set_large_send(struct qeth_card *);
1176
1177 extern void
1178 qeth_fill_header(struct qeth_card *, struct qeth_hdr *,
1179 struct sk_buff *, int, int);
1180 extern void
1181 qeth_flush_buffers(struct qeth_qdio_out_q *, int, int, int);
1182
1183 #endif /* __QETH_H__ */
Linux kernel - Deliverables
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