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[NET]: Implement network device movement between namespaces
[linux-2.6/kmemtrace.git] / drivers / s390 / net / qeth.h
blob6d4959807abcc0e291f217bfcccb6898360c2de9
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 #include <linux/ctype.h>
12
13 #include <net/ipv6.h>
14 #include <linux/in6.h>
15 #include <net/if_inet6.h>
16 #include <net/addrconf.h>
17
18
19 #include <linux/bitops.h>
20
21 #include <asm/debug.h>
22 #include <asm/qdio.h>
23 #include <asm/ccwdev.h>
24 #include <asm/ccwgroup.h>
25
26 #include "qeth_mpc.h"
27
28 #ifdef CONFIG_QETH_IPV6
29 #define QETH_VERSION_IPV6 ":IPv6"
30 #else
31 #define QETH_VERSION_IPV6 ""
32 #endif
33 #ifdef CONFIG_QETH_VLAN
34 #define QETH_VERSION_VLAN ":VLAN"
35 #else
36 #define QETH_VERSION_VLAN ""
37 #endif
38
39 /**
40 * Debug Facility stuff
41 */
42 #define QETH_DBF_SETUP_NAME "qeth_setup"
43 #define QETH_DBF_SETUP_LEN 8
44 #define QETH_DBF_SETUP_PAGES 8
45 #define QETH_DBF_SETUP_NR_AREAS 1
46 #define QETH_DBF_SETUP_LEVEL 5
47
48 #define QETH_DBF_MISC_NAME "qeth_misc"
49 #define QETH_DBF_MISC_LEN 128
50 #define QETH_DBF_MISC_PAGES 2
51 #define QETH_DBF_MISC_NR_AREAS 1
52 #define QETH_DBF_MISC_LEVEL 2
53
54 #define QETH_DBF_DATA_NAME "qeth_data"
55 #define QETH_DBF_DATA_LEN 96
56 #define QETH_DBF_DATA_PAGES 8
57 #define QETH_DBF_DATA_NR_AREAS 1
58 #define QETH_DBF_DATA_LEVEL 2
59
60 #define QETH_DBF_CONTROL_NAME "qeth_control"
61 #define QETH_DBF_CONTROL_LEN 256
62 #define QETH_DBF_CONTROL_PAGES 8
63 #define QETH_DBF_CONTROL_NR_AREAS 2
64 #define QETH_DBF_CONTROL_LEVEL 5
65
66 #define QETH_DBF_TRACE_NAME "qeth_trace"
67 #define QETH_DBF_TRACE_LEN 8
68 #define QETH_DBF_TRACE_PAGES 4
69 #define QETH_DBF_TRACE_NR_AREAS 2
70 #define QETH_DBF_TRACE_LEVEL 3
71 extern debug_info_t *qeth_dbf_trace;
72
73 #define QETH_DBF_SENSE_NAME "qeth_sense"
74 #define QETH_DBF_SENSE_LEN 64
75 #define QETH_DBF_SENSE_PAGES 2
76 #define QETH_DBF_SENSE_NR_AREAS 1
77 #define QETH_DBF_SENSE_LEVEL 2
78
79 #define QETH_DBF_QERR_NAME "qeth_qerr"
80 #define QETH_DBF_QERR_LEN 8
81 #define QETH_DBF_QERR_PAGES 2
82 #define QETH_DBF_QERR_NR_AREAS 2
83 #define QETH_DBF_QERR_LEVEL 2
84
85 #define QETH_DBF_TEXT(name,level,text) \
86 do { \
87 debug_text_event(qeth_dbf_##name,level,text); \
88 } while (0)
89
90 #define QETH_DBF_HEX(name,level,addr,len) \
91 do { \
92 debug_event(qeth_dbf_##name,level,(void*)(addr),len); \
93 } while (0)
94
95 DECLARE_PER_CPU(char[256], qeth_dbf_txt_buf);
96
97 #define QETH_DBF_TEXT_(name,level,text...) \
98 do { \
99 char* dbf_txt_buf = get_cpu_var(qeth_dbf_txt_buf); \
100 sprintf(dbf_txt_buf, text); \
101 debug_text_event(qeth_dbf_##name,level,dbf_txt_buf); \
102 put_cpu_var(qeth_dbf_txt_buf); \
103 } while (0)
104
105 #define QETH_DBF_SPRINTF(name,level,text...) \
106 do { \
107 debug_sprintf_event(qeth_dbf_trace, level, ##text ); \
108 debug_sprintf_event(qeth_dbf_trace, level, text ); \
109 } while (0)
110
111 /**
112 * some more debug stuff
113 */
114 #define PRINTK_HEADER "qeth: "
115
116 #define HEXDUMP16(importance,header,ptr) \
117 PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
118 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
119 *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
120 *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
121 *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
122 *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
123 *(((char*)ptr)+12),*(((char*)ptr)+13), \
124 *(((char*)ptr)+14),*(((char*)ptr)+15)); \
125 PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
126 "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
127 *(((char*)ptr)+16),*(((char*)ptr)+17), \
128 *(((char*)ptr)+18),*(((char*)ptr)+19), \
129 *(((char*)ptr)+20),*(((char*)ptr)+21), \
130 *(((char*)ptr)+22),*(((char*)ptr)+23), \
131 *(((char*)ptr)+24),*(((char*)ptr)+25), \
132 *(((char*)ptr)+26),*(((char*)ptr)+27), \
133 *(((char*)ptr)+28),*(((char*)ptr)+29), \
134 *(((char*)ptr)+30),*(((char*)ptr)+31));
135
136 static inline void
137 qeth_hex_dump(unsigned char *buf, size_t len)
138 {
139 size_t i;
140
141 for (i = 0; i < len; i++) {
142 if (i && !(i % 16))
143 printk("\n");
144 printk("%02x ", *(buf + i));
145 }
146 printk("\n");
147 }
148
149 #define SENSE_COMMAND_REJECT_BYTE 0
150 #define SENSE_COMMAND_REJECT_FLAG 0x80
151 #define SENSE_RESETTING_EVENT_BYTE 1
152 #define SENSE_RESETTING_EVENT_FLAG 0x80
153
154 /*
155 * Common IO related definitions
156 */
157 extern struct device *qeth_root_dev;
158 extern struct ccw_driver qeth_ccw_driver;
159 extern struct ccwgroup_driver qeth_ccwgroup_driver;
160
161 #define CARD_RDEV(card) card->read.ccwdev
162 #define CARD_WDEV(card) card->write.ccwdev
163 #define CARD_DDEV(card) card->data.ccwdev
164 #define CARD_BUS_ID(card) card->gdev->dev.bus_id
165 #define CARD_RDEV_ID(card) card->read.ccwdev->dev.bus_id
166 #define CARD_WDEV_ID(card) card->write.ccwdev->dev.bus_id
167 #define CARD_DDEV_ID(card) card->data.ccwdev->dev.bus_id
168 #define CHANNEL_ID(channel) channel->ccwdev->dev.bus_id
169
170 #define CARD_FROM_CDEV(cdev) (struct qeth_card *) \
171 ((struct ccwgroup_device *)cdev->dev.driver_data)\
172 ->dev.driver_data;
173
174 /**
175 * card stuff
176 */
177 struct qeth_perf_stats {
178 unsigned int bufs_rec;
179 unsigned int bufs_sent;
180
181 unsigned int skbs_sent_pack;
182 unsigned int bufs_sent_pack;
183
184 unsigned int sc_dp_p;
185 unsigned int sc_p_dp;
186 /* qdio_input_handler: number of times called, time spent in */
187 __u64 inbound_start_time;
188 unsigned int inbound_cnt;
189 unsigned int inbound_time;
190 /* qeth_send_packet: number of times called, time spent in */
191 __u64 outbound_start_time;
192 unsigned int outbound_cnt;
193 unsigned int outbound_time;
194 /* qdio_output_handler: number of times called, time spent in */
195 __u64 outbound_handler_start_time;
196 unsigned int outbound_handler_cnt;
197 unsigned int outbound_handler_time;
198 /* number of calls to and time spent in do_QDIO for inbound queue */
199 __u64 inbound_do_qdio_start_time;
200 unsigned int inbound_do_qdio_cnt;
201 unsigned int inbound_do_qdio_time;
202 /* number of calls to and time spent in do_QDIO for outbound queues */
203 __u64 outbound_do_qdio_start_time;
204 unsigned int outbound_do_qdio_cnt;
205 unsigned int outbound_do_qdio_time;
206 /* eddp data */
207 unsigned int large_send_bytes;
208 unsigned int large_send_cnt;
209 unsigned int sg_skbs_sent;
210 unsigned int sg_frags_sent;
211 /* initial values when measuring starts */
212 unsigned long initial_rx_packets;
213 unsigned long initial_tx_packets;
214 /* inbound scatter gather data */
215 unsigned int sg_skbs_rx;
216 unsigned int sg_frags_rx;
217 unsigned int sg_alloc_page_rx;
218 };
219
220 /* Routing stuff */
221 struct qeth_routing_info {
222 enum qeth_routing_types type;
223 };
224
225 /* IPA stuff */
226 struct qeth_ipa_info {
227 __u32 supported_funcs;
228 __u32 enabled_funcs;
229 };
230
231 static inline int
232 qeth_is_ipa_supported(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
233 {
234 return (ipa->supported_funcs & func);
235 }
236
237 static inline int
238 qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
239 {
240 return (ipa->supported_funcs & ipa->enabled_funcs & func);
241 }
242
243 #define qeth_adp_supported(c,f) \
244 qeth_is_ipa_supported(&c->options.adp, f)
245 #define qeth_adp_enabled(c,f) \
246 qeth_is_ipa_enabled(&c->options.adp, f)
247 #define qeth_is_supported(c,f) \
248 qeth_is_ipa_supported(&c->options.ipa4, f)
249 #define qeth_is_enabled(c,f) \
250 qeth_is_ipa_enabled(&c->options.ipa4, f)
251 #ifdef CONFIG_QETH_IPV6
252 #define qeth_is_supported6(c,f) \
253 qeth_is_ipa_supported(&c->options.ipa6, f)
254 #define qeth_is_enabled6(c,f) \
255 qeth_is_ipa_enabled(&c->options.ipa6, f)
256 #else /* CONFIG_QETH_IPV6 */
257 #define qeth_is_supported6(c,f) 0
258 #define qeth_is_enabled6(c,f) 0
259 #endif /* CONFIG_QETH_IPV6 */
260 #define qeth_is_ipafunc_supported(c,prot,f) \
261 (prot==QETH_PROT_IPV6)? qeth_is_supported6(c,f):qeth_is_supported(c,f)
262 #define qeth_is_ipafunc_enabled(c,prot,f) \
263 (prot==QETH_PROT_IPV6)? qeth_is_enabled6(c,f):qeth_is_enabled(c,f)
264
265
266 #define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101
267 #define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101
268 #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108
269 #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108
270
271 #define QETH_MODELLIST_ARRAY \
272 {{0x1731,0x01,0x1732,0x01,QETH_CARD_TYPE_OSAE,1, \
273 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
274 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
275 QETH_MAX_QUEUES,0}, \
276 {0x1731,0x05,0x1732,0x05,QETH_CARD_TYPE_IQD,0, \
277 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \
278 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \
279 QETH_MAX_QUEUES,0x103}, \
280 {0x1731,0x06,0x1732,0x06,QETH_CARD_TYPE_OSN,0, \
281 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
282 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
283 QETH_MAX_QUEUES,0}, \
284 {0,0,0,0,0,0,0,0,0}}
285
286 #define QETH_REAL_CARD 1
287 #define QETH_VLAN_CARD 2
288 #define QETH_BUFSIZE 4096
289
290 /**
291 * some more defs
292 */
293 #define IF_NAME_LEN 16
294 #define QETH_TX_TIMEOUT 100 * HZ
295 #define QETH_RCD_TIMEOUT 60 * HZ
296 #define QETH_HEADER_SIZE 32
297 #define MAX_PORTNO 15
298 #define QETH_FAKE_LL_LEN_ETH ETH_HLEN
299 #define QETH_FAKE_LL_LEN_TR (sizeof(struct trh_hdr)-TR_MAXRIFLEN+sizeof(struct trllc))
300 #define QETH_FAKE_LL_V6_ADDR_POS 24
301
302 /*IPv6 address autoconfiguration stuff*/
303 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
304 #define UNIQUE_ID_NOT_BY_CARD 0x10000
305
306 /*****************************************************************************/
307 /* QDIO queue and buffer handling */
308 /*****************************************************************************/
309 #define QETH_MAX_QUEUES 4
310 #define QETH_IN_BUF_SIZE_DEFAULT 65536
311 #define QETH_IN_BUF_COUNT_DEFAULT 16
312 #define QETH_IN_BUF_COUNT_MIN 8
313 #define QETH_IN_BUF_COUNT_MAX 128
314 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
315 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
316 ((card)->qdio.in_buf_pool.buf_count / 2)
317
318 /* buffers we have to be behind before we get a PCI */
319 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
320 /*enqueued free buffers left before we get a PCI*/
321 #define QETH_PCI_THRESHOLD_B(card) 0
322 /*not used unless the microcode gets patched*/
323 #define QETH_PCI_TIMER_VALUE(card) 3
324
325 #define QETH_MIN_INPUT_THRESHOLD 1
326 #define QETH_MAX_INPUT_THRESHOLD 500
327 #define QETH_MIN_OUTPUT_THRESHOLD 1
328 #define QETH_MAX_OUTPUT_THRESHOLD 300
329
330 /* priority queing */
331 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
332 #define QETH_DEFAULT_QUEUE 2
333 #define QETH_NO_PRIO_QUEUEING 0
334 #define QETH_PRIO_Q_ING_PREC 1
335 #define QETH_PRIO_Q_ING_TOS 2
336 #define IP_TOS_LOWDELAY 0x10
337 #define IP_TOS_HIGHTHROUGHPUT 0x08
338 #define IP_TOS_HIGHRELIABILITY 0x04
339 #define IP_TOS_NOTIMPORTANT 0x02
340
341 /* Packing */
342 #define QETH_LOW_WATERMARK_PACK 2
343 #define QETH_HIGH_WATERMARK_PACK 5
344 #define QETH_WATERMARK_PACK_FUZZ 1
345
346 #define QETH_IP_HEADER_SIZE 40
347
348 /* large receive scatter gather copy break */
349 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
350
351 struct qeth_hdr_layer3 {
352 __u8 id;
353 __u8 flags;
354 __u16 inbound_checksum; /*TSO:__u16 seqno */
355 __u32 token; /*TSO: __u32 reserved */
356 __u16 length;
357 __u8 vlan_prio;
358 __u8 ext_flags;
359 __u16 vlan_id;
360 __u16 frame_offset;
361 __u8 dest_addr[16];
362 } __attribute__ ((packed));
363
364 struct qeth_hdr_layer2 {
365 __u8 id;
366 __u8 flags[3];
367 __u8 port_no;
368 __u8 hdr_length;
369 __u16 pkt_length;
370 __u16 seq_no;
371 __u16 vlan_id;
372 __u32 reserved;
373 __u8 reserved2[16];
374 } __attribute__ ((packed));
375
376 struct qeth_hdr_osn {
377 __u8 id;
378 __u8 reserved;
379 __u16 seq_no;
380 __u16 reserved2;
381 __u16 control_flags;
382 __u16 pdu_length;
383 __u8 reserved3[18];
384 __u32 ccid;
385 } __attribute__ ((packed));
386
387 struct qeth_hdr {
388 union {
389 struct qeth_hdr_layer2 l2;
390 struct qeth_hdr_layer3 l3;
391 struct qeth_hdr_osn osn;
392 } hdr;
393 } __attribute__ ((packed));
394
395 /*TCP Segmentation Offload header*/
396 struct qeth_hdr_ext_tso {
397 __u16 hdr_tot_len;
398 __u8 imb_hdr_no;
399 __u8 reserved;
400 __u8 hdr_type;
401 __u8 hdr_version;
402 __u16 hdr_len;
403 __u32 payload_len;
404 __u16 mss;
405 __u16 dg_hdr_len;
406 __u8 padding[16];
407 } __attribute__ ((packed));
408
409 struct qeth_hdr_tso {
410 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
411 struct qeth_hdr_ext_tso ext;
412 } __attribute__ ((packed));
413
414
415 /* flags for qeth_hdr.flags */
416 #define QETH_HDR_PASSTHRU 0x10
417 #define QETH_HDR_IPV6 0x80
418 #define QETH_HDR_CAST_MASK 0x07
419 enum qeth_cast_flags {
420 QETH_CAST_UNICAST = 0x06,
421 QETH_CAST_MULTICAST = 0x04,
422 QETH_CAST_BROADCAST = 0x05,
423 QETH_CAST_ANYCAST = 0x07,
424 QETH_CAST_NOCAST = 0x00,
425 };
426
427 enum qeth_layer2_frame_flags {
428 QETH_LAYER2_FLAG_MULTICAST = 0x01,
429 QETH_LAYER2_FLAG_BROADCAST = 0x02,
430 QETH_LAYER2_FLAG_UNICAST = 0x04,
431 QETH_LAYER2_FLAG_VLAN = 0x10,
432 };
433
434 enum qeth_header_ids {
435 QETH_HEADER_TYPE_LAYER3 = 0x01,
436 QETH_HEADER_TYPE_LAYER2 = 0x02,
437 QETH_HEADER_TYPE_TSO = 0x03,
438 QETH_HEADER_TYPE_OSN = 0x04,
439 };
440 /* flags for qeth_hdr.ext_flags */
441 #define QETH_HDR_EXT_VLAN_FRAME 0x01
442 #define QETH_HDR_EXT_TOKEN_ID 0x02
443 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
444 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
445 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
446 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
447 #define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/
448
449 static inline int
450 qeth_is_last_sbale(struct qdio_buffer_element *sbale)
451 {
452 return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
453 }
454
455 enum qeth_qdio_buffer_states {
456 /*
457 * inbound: read out by driver; owned by hardware in order to be filled
458 * outbound: owned by driver in order to be filled
459 */
460 QETH_QDIO_BUF_EMPTY,
461 /*
462 * inbound: filled by hardware; owned by driver in order to be read out
463 * outbound: filled by driver; owned by hardware in order to be sent
464 */
465 QETH_QDIO_BUF_PRIMED,
466 };
467
468 enum qeth_qdio_info_states {
469 QETH_QDIO_UNINITIALIZED,
470 QETH_QDIO_ALLOCATED,
471 QETH_QDIO_ESTABLISHED,
472 QETH_QDIO_CLEANING
473 };
474
475 struct qeth_buffer_pool_entry {
476 struct list_head list;
477 struct list_head init_list;
478 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
479 };
480
481 struct qeth_qdio_buffer_pool {
482 struct list_head entry_list;
483 int buf_count;
484 };
485
486 struct qeth_qdio_buffer {
487 struct qdio_buffer *buffer;
488 volatile enum qeth_qdio_buffer_states state;
489 /* the buffer pool entry currently associated to this buffer */
490 struct qeth_buffer_pool_entry *pool_entry;
491 };
492
493 struct qeth_qdio_q {
494 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
495 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
496 /*
497 * buf_to_init means "buffer must be initialized by driver and must
498 * be made available for hardware" -> state is set to EMPTY
499 */
500 volatile int next_buf_to_init;
501 } __attribute__ ((aligned(256)));
502
503 /* possible types of qeth large_send support */
504 enum qeth_large_send_types {
505 QETH_LARGE_SEND_NO,
506 QETH_LARGE_SEND_EDDP,
507 QETH_LARGE_SEND_TSO,
508 };
509
510 struct qeth_qdio_out_buffer {
511 struct qdio_buffer *buffer;
512 atomic_t state;
513 volatile int next_element_to_fill;
514 struct sk_buff_head skb_list;
515 struct list_head ctx_list;
516 };
517
518 struct qeth_card;
519
520 enum qeth_out_q_states {
521 QETH_OUT_Q_UNLOCKED,
522 QETH_OUT_Q_LOCKED,
523 QETH_OUT_Q_LOCKED_FLUSH,
524 };
525
526 struct qeth_qdio_out_q {
527 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
528 struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
529 int queue_no;
530 struct qeth_card *card;
531 atomic_t state;
532 volatile int do_pack;
533 /*
534 * index of buffer to be filled by driver; state EMPTY or PACKING
535 */
536 volatile int next_buf_to_fill;
537 /*
538 * number of buffers that are currently filled (PRIMED)
539 * -> these buffers are hardware-owned
540 */
541 atomic_t used_buffers;
542 /* indicates whether PCI flag must be set (or if one is outstanding) */
543 atomic_t set_pci_flags_count;
544 } __attribute__ ((aligned(256)));
545
546 struct qeth_qdio_info {
547 atomic_t state;
548 /* input */
549 struct qeth_qdio_q *in_q;
550 struct qeth_qdio_buffer_pool in_buf_pool;
551 struct qeth_qdio_buffer_pool init_pool;
552 int in_buf_size;
553
554 /* output */
555 int no_out_queues;
556 struct qeth_qdio_out_q **out_qs;
557
558 /* priority queueing */
559 int do_prio_queueing;
560 int default_out_queue;
561 };
562
563 enum qeth_send_errors {
564 QETH_SEND_ERROR_NONE,
565 QETH_SEND_ERROR_LINK_FAILURE,
566 QETH_SEND_ERROR_RETRY,
567 QETH_SEND_ERROR_KICK_IT,
568 };
569
570 #define QETH_ETH_MAC_V4 0x0100 /* like v4 */
571 #define QETH_ETH_MAC_V6 0x3333 /* like v6 */
572 /* tr mc mac is longer, but that will be enough to detect mc frames */
573 #define QETH_TR_MAC_NC 0xc000 /* non-canonical */
574 #define QETH_TR_MAC_C 0x0300 /* canonical */
575
576 #define DEFAULT_ADD_HHLEN 0
577 #define MAX_ADD_HHLEN 1024
578
579 /**
580 * buffer stuff for read channel
581 */
582 #define QETH_CMD_BUFFER_NO 8
583
584 /**
585 * channel state machine
586 */
587 enum qeth_channel_states {
588 CH_STATE_UP,
589 CH_STATE_DOWN,
590 CH_STATE_ACTIVATING,
591 CH_STATE_HALTED,
592 CH_STATE_STOPPED,
593 CH_STATE_RCD,
594 CH_STATE_RCD_DONE,
595 };
596 /**
597 * card state machine
598 */
599 enum qeth_card_states {
600 CARD_STATE_DOWN,
601 CARD_STATE_HARDSETUP,
602 CARD_STATE_SOFTSETUP,
603 CARD_STATE_UP,
604 CARD_STATE_RECOVER,
605 };
606
607 /**
608 * Protocol versions
609 */
610 enum qeth_prot_versions {
611 QETH_PROT_IPV4 = 0x0004,
612 QETH_PROT_IPV6 = 0x0006,
613 };
614
615 enum qeth_ip_types {
616 QETH_IP_TYPE_NORMAL,
617 QETH_IP_TYPE_VIPA,
618 QETH_IP_TYPE_RXIP,
619 QETH_IP_TYPE_DEL_ALL_MC,
620 };
621
622 enum qeth_cmd_buffer_state {
623 BUF_STATE_FREE,
624 BUF_STATE_LOCKED,
625 BUF_STATE_PROCESSED,
626 };
627 /**
628 * IP address and multicast list
629 */
630 struct qeth_ipaddr {
631 struct list_head entry;
632 enum qeth_ip_types type;
633 enum qeth_ipa_setdelip_flags set_flags;
634 enum qeth_ipa_setdelip_flags del_flags;
635 int is_multicast;
636 volatile int users;
637 enum qeth_prot_versions proto;
638 unsigned char mac[OSA_ADDR_LEN];
639 union {
640 struct {
641 unsigned int addr;
642 unsigned int mask;
643 } a4;
644 struct {
645 struct in6_addr addr;
646 unsigned int pfxlen;
647 } a6;
648 } u;
649 };
650
651 struct qeth_ipato_entry {
652 struct list_head entry;
653 enum qeth_prot_versions proto;
654 char addr[16];
655 int mask_bits;
656 };
657
658 struct qeth_ipato {
659 int enabled;
660 int invert4;
661 int invert6;
662 struct list_head entries;
663 };
664
665 struct qeth_channel;
666
667 struct qeth_cmd_buffer {
668 enum qeth_cmd_buffer_state state;
669 struct qeth_channel *channel;
670 unsigned char *data;
671 int rc;
672 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
673 };
674
675
676 /**
677 * definition of a qeth channel, used for read and write
678 */
679 struct qeth_channel {
680 enum qeth_channel_states state;
681 struct ccw1 ccw;
682 spinlock_t iob_lock;
683 wait_queue_head_t wait_q;
684 struct tasklet_struct irq_tasklet;
685 struct ccw_device *ccwdev;
686 /*command buffer for control data*/
687 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
688 atomic_t irq_pending;
689 volatile int io_buf_no;
690 volatile int buf_no;
691 };
692
693 /**
694 * OSA card related definitions
695 */
696 struct qeth_token {
697 __u32 issuer_rm_w;
698 __u32 issuer_rm_r;
699 __u32 cm_filter_w;
700 __u32 cm_filter_r;
701 __u32 cm_connection_w;
702 __u32 cm_connection_r;
703 __u32 ulp_filter_w;
704 __u32 ulp_filter_r;
705 __u32 ulp_connection_w;
706 __u32 ulp_connection_r;
707 };
708
709 struct qeth_seqno {
710 __u32 trans_hdr;
711 __u32 pdu_hdr;
712 __u32 pdu_hdr_ack;
713 __u16 ipa;
714 __u32 pkt_seqno;
715 };
716
717 struct qeth_reply {
718 struct list_head list;
719 wait_queue_head_t wait_q;
720 int (*callback)(struct qeth_card *,struct qeth_reply *,unsigned long);
721 u32 seqno;
722 unsigned long offset;
723 atomic_t received;
724 int rc;
725 void *param;
726 struct qeth_card *card;
727 atomic_t refcnt;
728 };
729
730
731 struct qeth_card_blkt {
732 int time_total;
733 int inter_packet;
734 int inter_packet_jumbo;
735 };
736
737 #define QETH_BROADCAST_WITH_ECHO 0x01
738 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
739 #define QETH_LAYER2_MAC_READ 0x01
740 #define QETH_LAYER2_MAC_REGISTERED 0x02
741 struct qeth_card_info {
742 unsigned short unit_addr2;
743 unsigned short cula;
744 unsigned short chpid;
745 __u16 func_level;
746 char mcl_level[QETH_MCL_LENGTH + 1];
747 int guestlan;
748 int mac_bits;
749 int portname_required;
750 int portno;
751 char portname[9];
752 enum qeth_card_types type;
753 enum qeth_link_types link_type;
754 int is_multicast_different;
755 int initial_mtu;
756 int max_mtu;
757 int broadcast_capable;
758 int unique_id;
759 struct qeth_card_blkt blkt;
760 __u32 csum_mask;
761 enum qeth_ipa_promisc_modes promisc_mode;
762 };
763
764 struct qeth_card_options {
765 struct qeth_routing_info route4;
766 struct qeth_ipa_info ipa4;
767 struct qeth_ipa_info adp; /*Adapter parameters*/
768 #ifdef CONFIG_QETH_IPV6
769 struct qeth_routing_info route6;
770 struct qeth_ipa_info ipa6;
771 #endif /* QETH_IPV6 */
772 enum qeth_checksum_types checksum_type;
773 int broadcast_mode;
774 int macaddr_mode;
775 int fake_broadcast;
776 int add_hhlen;
777 int fake_ll;
778 int layer2;
779 enum qeth_large_send_types large_send;
780 int performance_stats;
781 int rx_sg_cb;
782 };
783
784 /*
785 * thread bits for qeth_card thread masks
786 */
787 enum qeth_threads {
788 QETH_SET_IP_THREAD = 1,
789 QETH_RECOVER_THREAD = 2,
790 QETH_SET_PROMISC_MODE_THREAD = 4,
791 };
792
793 struct qeth_osn_info {
794 int (*assist_cb)(struct net_device *dev, void *data);
795 int (*data_cb)(struct sk_buff *skb);
796 };
797
798 struct qeth_card {
799 struct list_head list;
800 enum qeth_card_states state;
801 int lan_online;
802 spinlock_t lock;
803 /*hardware and sysfs stuff*/
804 struct ccwgroup_device *gdev;
805 struct qeth_channel read;
806 struct qeth_channel write;
807 struct qeth_channel data;
808
809 struct net_device *dev;
810 struct net_device_stats stats;
811
812 struct qeth_card_info info;
813 struct qeth_token token;
814 struct qeth_seqno seqno;
815 struct qeth_card_options options;
816
817 wait_queue_head_t wait_q;
818 #ifdef CONFIG_QETH_VLAN
819 spinlock_t vlanlock;
820 struct vlan_group *vlangrp;
821 #endif
822 struct work_struct kernel_thread_starter;
823 spinlock_t thread_mask_lock;
824 volatile unsigned long thread_start_mask;
825 volatile unsigned long thread_allowed_mask;
826 volatile unsigned long thread_running_mask;
827 spinlock_t ip_lock;
828 struct list_head ip_list;
829 struct list_head *ip_tbd_list;
830 struct qeth_ipato ipato;
831 struct list_head cmd_waiter_list;
832 /* QDIO buffer handling */
833 struct qeth_qdio_info qdio;
834 struct qeth_perf_stats perf_stats;
835 int use_hard_stop;
836 int (*orig_hard_header)(struct sk_buff *,struct net_device *,
837 unsigned short,void *,void *,unsigned);
838 struct qeth_osn_info osn_info;
839 atomic_t force_alloc_skb;
840 };
841
842 struct qeth_card_list_struct {
843 struct list_head list;
844 rwlock_t rwlock;
845 };
846
847 extern struct qeth_card_list_struct qeth_card_list;
848
849 /*notifier list */
850 struct qeth_notify_list_struct {
851 struct list_head list;
852 struct task_struct *task;
853 int signum;
854 };
855 extern spinlock_t qeth_notify_lock;
856 extern struct list_head qeth_notify_list;
857
858 /*some helper functions*/
859
860 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
861
862 static inline __u8
863 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
864 {
865 switch (link_type) {
866 case QETH_LINK_TYPE_HSTR:
867 return 2;
868 default:
869 return 1;
870 }
871 }
872
873 static inline struct sk_buff *
874 qeth_realloc_headroom(struct qeth_card *card, struct sk_buff *skb, int size)
875 {
876 struct sk_buff *new_skb = skb;
877
878 if (skb_headroom(skb) >= size)
879 return skb;
880 new_skb = skb_realloc_headroom(skb, size);
881 if (!new_skb)
882 PRINT_ERR("Could not realloc headroom for qeth_hdr "
883 "on interface %s", QETH_CARD_IFNAME(card));
884 return new_skb;
885 }
886
887 static inline struct sk_buff *
888 qeth_pskb_unshare(struct sk_buff *skb, gfp_t pri)
889 {
890 struct sk_buff *nskb;
891 if (!skb_cloned(skb))
892 return skb;
893 nskb = skb_copy(skb, pri);
894 return nskb;
895 }
896
897 static inline void *
898 qeth_push_skb(struct qeth_card *card, struct sk_buff *skb, int size)
899 {
900 void *hdr;
901
902 hdr = (void *) skb_push(skb, size);
903 /*
904 * sanity check, the Linux memory allocation scheme should
905 * never present us cases like this one (the qdio header size plus
906 * the first 40 bytes of the paket cross a 4k boundary)
907 */
908 if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) !=
909 (((unsigned long) hdr + size +
910 QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
911 PRINT_ERR("Misaligned packet on interface %s. Discarded.",
912 QETH_CARD_IFNAME(card));
913 return NULL;
914 }
915 return hdr;
916 }
917
918
919 static inline int
920 qeth_get_hlen(__u8 link_type)
921 {
922 #ifdef CONFIG_QETH_IPV6
923 switch (link_type) {
924 case QETH_LINK_TYPE_HSTR:
925 case QETH_LINK_TYPE_LANE_TR:
926 return sizeof(struct qeth_hdr_tso) + TR_HLEN;
927 default:
928 #ifdef CONFIG_QETH_VLAN
929 return sizeof(struct qeth_hdr_tso) + VLAN_ETH_HLEN;
930 #else
931 return sizeof(struct qeth_hdr_tso) + ETH_HLEN;
932 #endif
933 }
934 #else /* CONFIG_QETH_IPV6 */
935 #ifdef CONFIG_QETH_VLAN
936 return sizeof(struct qeth_hdr_tso) + VLAN_HLEN;
937 #else
938 return sizeof(struct qeth_hdr_tso);
939 #endif
940 #endif /* CONFIG_QETH_IPV6 */
941 }
942
943 static inline unsigned short
944 qeth_get_netdev_flags(struct qeth_card *card)
945 {
946 if (card->options.layer2 &&
947 (card->info.type == QETH_CARD_TYPE_OSAE))
948 return 0;
949 switch (card->info.type) {
950 case QETH_CARD_TYPE_IQD:
951 case QETH_CARD_TYPE_OSN:
952 return IFF_NOARP;
953 #ifdef CONFIG_QETH_IPV6
954 default:
955 return 0;
956 #else
957 default:
958 return IFF_NOARP;
959 #endif
960 }
961 }
962
963 static inline int
964 qeth_get_initial_mtu_for_card(struct qeth_card * card)
965 {
966 switch (card->info.type) {
967 case QETH_CARD_TYPE_UNKNOWN:
968 return 1500;
969 case QETH_CARD_TYPE_IQD:
970 return card->info.max_mtu;
971 case QETH_CARD_TYPE_OSAE:
972 switch (card->info.link_type) {
973 case QETH_LINK_TYPE_HSTR:
974 case QETH_LINK_TYPE_LANE_TR:
975 return 2000;
976 default:
977 return 1492;
978 }
979 default:
980 return 1500;
981 }
982 }
983
984 static inline int
985 qeth_get_max_mtu_for_card(int cardtype)
986 {
987 switch (cardtype) {
988
989 case QETH_CARD_TYPE_UNKNOWN:
990 case QETH_CARD_TYPE_OSAE:
991 case QETH_CARD_TYPE_OSN:
992 return 61440;
993 case QETH_CARD_TYPE_IQD:
994 return 57344;
995 default:
996 return 1500;
997 }
998 }
999
1000 static inline int
1001 qeth_get_mtu_out_of_mpc(int cardtype)
1002 {
1003 switch (cardtype) {
1004 case QETH_CARD_TYPE_IQD:
1005 return 1;
1006 default:
1007 return 0;
1008 }
1009 }
1010
1011 static inline int
1012 qeth_get_mtu_outof_framesize(int framesize)
1013 {
1014 switch (framesize) {
1015 case 0x4000:
1016 return 8192;
1017 case 0x6000:
1018 return 16384;
1019 case 0xa000:
1020 return 32768;
1021 case 0xffff:
1022 return 57344;
1023 default:
1024 return 0;
1025 }
1026 }
1027
1028 static inline int
1029 qeth_mtu_is_valid(struct qeth_card * card, int mtu)
1030 {
1031 switch (card->info.type) {
1032 case QETH_CARD_TYPE_OSAE:
1033 return ((mtu >= 576) && (mtu <= 61440));
1034 case QETH_CARD_TYPE_IQD:
1035 return ((mtu >= 576) &&
1036 (mtu <= card->info.max_mtu + 4096 - 32));
1037 case QETH_CARD_TYPE_OSN:
1038 case QETH_CARD_TYPE_UNKNOWN:
1039 default:
1040 return 1;
1041 }
1042 }
1043
1044 static inline int
1045 qeth_get_arphdr_type(int cardtype, int linktype)
1046 {
1047 switch (cardtype) {
1048 case QETH_CARD_TYPE_OSAE:
1049 case QETH_CARD_TYPE_OSN:
1050 switch (linktype) {
1051 case QETH_LINK_TYPE_LANE_TR:
1052 case QETH_LINK_TYPE_HSTR:
1053 return ARPHRD_IEEE802_TR;
1054 default:
1055 return ARPHRD_ETHER;
1056 }
1057 case QETH_CARD_TYPE_IQD:
1058 default:
1059 return ARPHRD_ETHER;
1060 }
1061 }
1062
1063 static inline int
1064 qeth_get_micros(void)
1065 {
1066 return (int) (get_clock() >> 12);
1067 }
1068
1069 static inline int
1070 qeth_get_qdio_q_format(struct qeth_card *card)
1071 {
1072 switch (card->info.type) {
1073 case QETH_CARD_TYPE_IQD:
1074 return 2;
1075 default:
1076 return 0;
1077 }
1078 }
1079
1080 static inline int
1081 qeth_isxdigit(char * buf)
1082 {
1083 while (*buf) {
1084 if (!isxdigit(*buf++))
1085 return 0;
1086 }
1087 return 1;
1088 }
1089
1090 static inline void
1091 qeth_ipaddr4_to_string(const __u8 *addr, char *buf)
1092 {
1093 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
1094 }
1095
1096 static inline int
1097 qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
1098 {
1099 int count = 0, rc = 0;
1100 int in[4];
1101 char c;
1102
1103 rc = sscanf(buf, "%u.%u.%u.%u%c",
1104 &in[0], &in[1], &in[2], &in[3], &c);
1105 if (rc != 4 && (rc != 5 || c != '\n'))
1106 return -EINVAL;
1107 for (count = 0; count < 4; count++) {
1108 if (in[count] > 255)
1109 return -EINVAL;
1110 addr[count] = in[count];
1111 }
1112 return 0;
1113 }
1114
1115 static inline void
1116 qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
1117 {
1118 sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
1119 ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
1120 addr[0], addr[1], addr[2], addr[3],
1121 addr[4], addr[5], addr[6], addr[7],
1122 addr[8], addr[9], addr[10], addr[11],
1123 addr[12], addr[13], addr[14], addr[15]);
1124 }
1125
1126 static inline int
1127 qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
1128 {
1129 const char *end, *end_tmp, *start;
1130 __u16 *in;
1131 char num[5];
1132 int num2, cnt, out, found, save_cnt;
1133 unsigned short in_tmp[8] = {0, };
1134
1135 cnt = out = found = save_cnt = num2 = 0;
1136 end = start = buf;
1137 in = (__u16 *) addr;
1138 memset(in, 0, 16);
1139 while (*end) {
1140 end = strchr(start,':');
1141 if (end == NULL) {
1142 end = buf + strlen(buf);
1143 if ((end_tmp = strchr(start, '\n')) != NULL)
1144 end = end_tmp;
1145 out = 1;
1146 }
1147 if ((end - start)) {
1148 memset(num, 0, 5);
1149 if ((end - start) > 4)
1150 return -EINVAL;
1151 memcpy(num, start, end - start);
1152 if (!qeth_isxdigit(num))
1153 return -EINVAL;
1154 sscanf(start, "%x", &num2);
1155 if (found)
1156 in_tmp[save_cnt++] = num2;
1157 else
1158 in[cnt++] = num2;
1159 if (out)
1160 break;
1161 } else {
1162 if (found)
1163 return -EINVAL;
1164 found = 1;
1165 }
1166 start = ++end;
1167 }
1168 if (cnt + save_cnt > 8)
1169 return -EINVAL;
1170 cnt = 7;
1171 while (save_cnt)
1172 in[cnt--] = in_tmp[--save_cnt];
1173 return 0;
1174 }
1175
1176 static inline void
1177 qeth_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
1178 char *buf)
1179 {
1180 if (proto == QETH_PROT_IPV4)
1181 qeth_ipaddr4_to_string(addr, buf);
1182 else if (proto == QETH_PROT_IPV6)
1183 qeth_ipaddr6_to_string(addr, buf);
1184 }
1185
1186 static inline int
1187 qeth_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
1188 __u8 *addr)
1189 {
1190 if (proto == QETH_PROT_IPV4)
1191 return qeth_string_to_ipaddr4(buf, addr);
1192 else if (proto == QETH_PROT_IPV6)
1193 return qeth_string_to_ipaddr6(buf, addr);
1194 else
1195 return -EINVAL;
1196 }
1197
1198 extern int
1199 qeth_setrouting_v4(struct qeth_card *);
1200 extern int
1201 qeth_setrouting_v6(struct qeth_card *);
1202
1203 extern int
1204 qeth_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
1205
1206 extern void
1207 qeth_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions, u8 *, int);
1208
1209 extern int
1210 qeth_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1211
1212 extern void
1213 qeth_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1214
1215 extern int
1216 qeth_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1217
1218 extern void
1219 qeth_del_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
1220
1221 extern int
1222 qeth_notifier_register(struct task_struct *, int );
1223
1224 extern int
1225 qeth_notifier_unregister(struct task_struct * );
1226
1227 extern void
1228 qeth_schedule_recovery(struct qeth_card *);
1229
1230 extern int
1231 qeth_realloc_buffer_pool(struct qeth_card *, int);
1232
1233 extern int
1234 qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types);
1235
1236 extern void
1237 qeth_fill_header(struct qeth_card *, struct qeth_hdr *,
1238 struct sk_buff *, int, int);
1239 extern void
1240 qeth_flush_buffers(struct qeth_qdio_out_q *, int, int, int);
1241
1242 extern int
1243 qeth_osn_assist(struct net_device *, void *, int);
1244
1245 extern int
1246 qeth_osn_register(unsigned char *read_dev_no,
1247 struct net_device **,
1248 int (*assist_cb)(struct net_device *, void *),
1249 int (*data_cb)(struct sk_buff *));
1250
1251 extern void
1252 qeth_osn_deregister(struct net_device *);
1253
1254 #endif /* __QETH_H__ */
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