1 /*
2 * drivers/s390/net/qeth_core.h
3 *
4 * Copyright IBM Corp. 2007
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 */
10
11 #ifndef __QETH_CORE_H__
12 #define __QETH_CORE_H__
13
14 #include <linux/if.h>
15 #include <linux/if_arp.h>
16 #include <linux/if_tr.h>
17 #include <linux/trdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/if_vlan.h>
20 #include <linux/ctype.h>
21 #include <linux/in6.h>
22 #include <linux/bitops.h>
23 #include <linux/seq_file.h>
24 #include <linux/ethtool.h>
25
26 #include <net/ipv6.h>
27 #include <net/if_inet6.h>
28 #include <net/addrconf.h>
29
30 #include <asm/debug.h>
31 #include <asm/qdio.h>
32 #include <asm/ccwdev.h>
33 #include <asm/ccwgroup.h>
34 #include <asm/sysinfo.h>
35
36 #include "qeth_core_mpc.h"
37
38 /**
39 * Debug Facility stuff
40 */
41 enum qeth_dbf_names {
42 QETH_DBF_SETUP,
43 QETH_DBF_MSG,
44 QETH_DBF_CTRL,
45 QETH_DBF_INFOS /* must be last element */
46 };
47
48 struct qeth_dbf_info {
49 char name[DEBUG_MAX_NAME_LEN];
50 int pages;
51 int areas;
52 int len;
53 int level;
54 struct debug_view *view;
55 debug_info_t *id;
56 };
57
58 #define QETH_DBF_CTRL_LEN 256
59
60 #define QETH_DBF_TEXT(name, level, text) \
61 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
62
63 #define QETH_DBF_HEX(name, level, addr, len) \
64 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
65
66 #define QETH_DBF_MESSAGE(level, text...) \
67 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
68
69 #define QETH_DBF_TEXT_(name, level, text...) \
70 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
71
72 #define QETH_CARD_TEXT(card, level, text) \
73 debug_text_event(card->debug, level, text)
74
75 #define QETH_CARD_HEX(card, level, addr, len) \
76 debug_event(card->debug, level, (void *)(addr), len)
77
78 #define QETH_CARD_MESSAGE(card, text...) \
79 debug_sprintf_event(card->debug, level, text)
80
81 #define QETH_CARD_TEXT_(card, level, text...) \
82 qeth_dbf_longtext(card->debug, level, text)
83
84 #define SENSE_COMMAND_REJECT_BYTE 0
85 #define SENSE_COMMAND_REJECT_FLAG 0x80
86 #define SENSE_RESETTING_EVENT_BYTE 1
87 #define SENSE_RESETTING_EVENT_FLAG 0x80
88
89 /*
90 * Common IO related definitions
91 */
92 #define CARD_RDEV(card) card->read.ccwdev
93 #define CARD_WDEV(card) card->write.ccwdev
94 #define CARD_DDEV(card) card->data.ccwdev
95 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
96 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
97 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
98 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
99 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
100
101 /**
102 * card stuff
103 */
104 struct qeth_perf_stats {
105 unsigned int bufs_rec;
106 unsigned int bufs_sent;
107
108 unsigned int skbs_sent_pack;
109 unsigned int bufs_sent_pack;
110
111 unsigned int sc_dp_p;
112 unsigned int sc_p_dp;
113 /* qdio_input_handler: number of times called, time spent in */
114 __u64 inbound_start_time;
115 unsigned int inbound_cnt;
116 unsigned int inbound_time;
117 /* qeth_send_packet: number of times called, time spent in */
118 __u64 outbound_start_time;
119 unsigned int outbound_cnt;
120 unsigned int outbound_time;
121 /* qdio_output_handler: number of times called, time spent in */
122 __u64 outbound_handler_start_time;
123 unsigned int outbound_handler_cnt;
124 unsigned int outbound_handler_time;
125 /* number of calls to and time spent in do_QDIO for inbound queue */
126 __u64 inbound_do_qdio_start_time;
127 unsigned int inbound_do_qdio_cnt;
128 unsigned int inbound_do_qdio_time;
129 /* number of calls to and time spent in do_QDIO for outbound queues */
130 __u64 outbound_do_qdio_start_time;
131 unsigned int outbound_do_qdio_cnt;
132 unsigned int outbound_do_qdio_time;
133 unsigned int large_send_bytes;
134 unsigned int large_send_cnt;
135 unsigned int sg_skbs_sent;
136 unsigned int sg_frags_sent;
137 /* initial values when measuring starts */
138 unsigned long initial_rx_packets;
139 unsigned long initial_tx_packets;
140 /* inbound scatter gather data */
141 unsigned int sg_skbs_rx;
142 unsigned int sg_frags_rx;
143 unsigned int sg_alloc_page_rx;
144 unsigned int tx_csum;
145 unsigned int tx_lin;
146 };
147
148 /* Routing stuff */
149 struct qeth_routing_info {
150 enum qeth_routing_types type;
151 };
152
153 /* IPA stuff */
154 struct qeth_ipa_info {
155 __u32 supported_funcs;
156 __u32 enabled_funcs;
157 };
158
qeth_is_ipa_supported(struct qeth_ipa_info * ipa,enum qeth_ipa_funcs func)159 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
160 enum qeth_ipa_funcs func)
161 {
162 return (ipa->supported_funcs & func);
163 }
164
qeth_is_ipa_enabled(struct qeth_ipa_info * ipa,enum qeth_ipa_funcs func)165 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
166 enum qeth_ipa_funcs func)
167 {
168 return (ipa->supported_funcs & ipa->enabled_funcs & func);
169 }
170
171 #define qeth_adp_supported(c, f) \
172 qeth_is_ipa_supported(&c->options.adp, f)
173 #define qeth_adp_enabled(c, f) \
174 qeth_is_ipa_enabled(&c->options.adp, f)
175 #define qeth_is_supported(c, f) \
176 qeth_is_ipa_supported(&c->options.ipa4, f)
177 #define qeth_is_enabled(c, f) \
178 qeth_is_ipa_enabled(&c->options.ipa4, f)
179 #define qeth_is_supported6(c, f) \
180 qeth_is_ipa_supported(&c->options.ipa6, f)
181 #define qeth_is_enabled6(c, f) \
182 qeth_is_ipa_enabled(&c->options.ipa6, f)
183 #define qeth_is_ipafunc_supported(c, prot, f) \
184 ((prot == QETH_PROT_IPV6) ? \
185 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
186 #define qeth_is_ipafunc_enabled(c, prot, f) \
187 ((prot == QETH_PROT_IPV6) ? \
188 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
189
190 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101
191 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108
192
193 #define QETH_MODELLIST_ARRAY \
194 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
195 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
196 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
197 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
198 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
199 {0, 0, 0, 0, 0, 0} }
200 #define QETH_CU_TYPE_IND 0
201 #define QETH_CU_MODEL_IND 1
202 #define QETH_DEV_TYPE_IND 2
203 #define QETH_DEV_MODEL_IND 3
204 #define QETH_QUEUE_NO_IND 4
205 #define QETH_MULTICAST_IND 5
206
207 #define QETH_REAL_CARD 1
208 #define QETH_VLAN_CARD 2
209 #define QETH_BUFSIZE 4096
210
211 /**
212 * some more defs
213 */
214 #define QETH_TX_TIMEOUT 100 * HZ
215 #define QETH_RCD_TIMEOUT 60 * HZ
216 #define QETH_HEADER_SIZE 32
217 #define QETH_MAX_PORTNO 15
218
219 /*IPv6 address autoconfiguration stuff*/
220 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
221 #define UNIQUE_ID_NOT_BY_CARD 0x10000
222
223 /*****************************************************************************/
224 /* QDIO queue and buffer handling */
225 /*****************************************************************************/
226 #define QETH_MAX_QUEUES 4
227 #define QETH_IN_BUF_SIZE_DEFAULT 65536
228 #define QETH_IN_BUF_COUNT_DEFAULT 64
229 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
230 #define QETH_IN_BUF_COUNT_MIN 8
231 #define QETH_IN_BUF_COUNT_MAX 128
232 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
233 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
234 ((card)->qdio.in_buf_pool.buf_count / 2)
235
236 /* buffers we have to be behind before we get a PCI */
237 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
238 /*enqueued free buffers left before we get a PCI*/
239 #define QETH_PCI_THRESHOLD_B(card) 0
240 /*not used unless the microcode gets patched*/
241 #define QETH_PCI_TIMER_VALUE(card) 3
242
243 /* priority queing */
244 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
245 #define QETH_DEFAULT_QUEUE 2
246 #define QETH_NO_PRIO_QUEUEING 0
247 #define QETH_PRIO_Q_ING_PREC 1
248 #define QETH_PRIO_Q_ING_TOS 2
249 #define IP_TOS_LOWDELAY 0x10
250 #define IP_TOS_HIGHTHROUGHPUT 0x08
251 #define IP_TOS_HIGHRELIABILITY 0x04
252 #define IP_TOS_NOTIMPORTANT 0x02
253
254 /* Packing */
255 #define QETH_LOW_WATERMARK_PACK 2
256 #define QETH_HIGH_WATERMARK_PACK 5
257 #define QETH_WATERMARK_PACK_FUZZ 1
258
259 #define QETH_IP_HEADER_SIZE 40
260
261 /* large receive scatter gather copy break */
262 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
263
264 struct qeth_hdr_layer3 {
265 __u8 id;
266 __u8 flags;
267 __u16 inbound_checksum; /*TSO:__u16 seqno */
268 __u32 token; /*TSO: __u32 reserved */
269 __u16 length;
270 __u8 vlan_prio;
271 __u8 ext_flags;
272 __u16 vlan_id;
273 __u16 frame_offset;
274 __u8 dest_addr[16];
275 } __attribute__ ((packed));
276
277 struct qeth_hdr_layer2 {
278 __u8 id;
279 __u8 flags[3];
280 __u8 port_no;
281 __u8 hdr_length;
282 __u16 pkt_length;
283 __u16 seq_no;
284 __u16 vlan_id;
285 __u32 reserved;
286 __u8 reserved2[16];
287 } __attribute__ ((packed));
288
289 struct qeth_hdr_osn {
290 __u8 id;
291 __u8 reserved;
292 __u16 seq_no;
293 __u16 reserved2;
294 __u16 control_flags;
295 __u16 pdu_length;
296 __u8 reserved3[18];
297 __u32 ccid;
298 } __attribute__ ((packed));
299
300 struct qeth_hdr {
301 union {
302 struct qeth_hdr_layer2 l2;
303 struct qeth_hdr_layer3 l3;
304 struct qeth_hdr_osn osn;
305 } hdr;
306 } __attribute__ ((packed));
307
308 /*TCP Segmentation Offload header*/
309 struct qeth_hdr_ext_tso {
310 __u16 hdr_tot_len;
311 __u8 imb_hdr_no;
312 __u8 reserved;
313 __u8 hdr_type;
314 __u8 hdr_version;
315 __u16 hdr_len;
316 __u32 payload_len;
317 __u16 mss;
318 __u16 dg_hdr_len;
319 __u8 padding[16];
320 } __attribute__ ((packed));
321
322 struct qeth_hdr_tso {
323 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
324 struct qeth_hdr_ext_tso ext;
325 } __attribute__ ((packed));
326
327
328 /* flags for qeth_hdr.flags */
329 #define QETH_HDR_PASSTHRU 0x10
330 #define QETH_HDR_IPV6 0x80
331 #define QETH_HDR_CAST_MASK 0x07
332 enum qeth_cast_flags {
333 QETH_CAST_UNICAST = 0x06,
334 QETH_CAST_MULTICAST = 0x04,
335 QETH_CAST_BROADCAST = 0x05,
336 QETH_CAST_ANYCAST = 0x07,
337 QETH_CAST_NOCAST = 0x00,
338 };
339
340 enum qeth_layer2_frame_flags {
341 QETH_LAYER2_FLAG_MULTICAST = 0x01,
342 QETH_LAYER2_FLAG_BROADCAST = 0x02,
343 QETH_LAYER2_FLAG_UNICAST = 0x04,
344 QETH_LAYER2_FLAG_VLAN = 0x10,
345 };
346
347 enum qeth_header_ids {
348 QETH_HEADER_TYPE_LAYER3 = 0x01,
349 QETH_HEADER_TYPE_LAYER2 = 0x02,
350 QETH_HEADER_TYPE_TSO = 0x03,
351 QETH_HEADER_TYPE_OSN = 0x04,
352 };
353 /* flags for qeth_hdr.ext_flags */
354 #define QETH_HDR_EXT_VLAN_FRAME 0x01
355 #define QETH_HDR_EXT_TOKEN_ID 0x02
356 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
357 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
358 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
359 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
360 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
361
qeth_is_last_sbale(struct qdio_buffer_element * sbale)362 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
363 {
364 return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
365 }
366
367 enum qeth_qdio_buffer_states {
368 /*
369 * inbound: read out by driver; owned by hardware in order to be filled
370 * outbound: owned by driver in order to be filled
371 */
372 QETH_QDIO_BUF_EMPTY,
373 /*
374 * inbound: filled by hardware; owned by driver in order to be read out
375 * outbound: filled by driver; owned by hardware in order to be sent
376 */
377 QETH_QDIO_BUF_PRIMED,
378 };
379
380 enum qeth_qdio_info_states {
381 QETH_QDIO_UNINITIALIZED,
382 QETH_QDIO_ALLOCATED,
383 QETH_QDIO_ESTABLISHED,
384 QETH_QDIO_CLEANING
385 };
386
387 struct qeth_buffer_pool_entry {
388 struct list_head list;
389 struct list_head init_list;
390 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
391 };
392
393 struct qeth_qdio_buffer_pool {
394 struct list_head entry_list;
395 int buf_count;
396 };
397
398 struct qeth_qdio_buffer {
399 struct qdio_buffer *buffer;
400 /* the buffer pool entry currently associated to this buffer */
401 struct qeth_buffer_pool_entry *pool_entry;
402 };
403
404 struct qeth_qdio_q {
405 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
406 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
407 int next_buf_to_init;
408 } __attribute__ ((aligned(256)));
409
410 /* possible types of qeth large_send support */
411 enum qeth_large_send_types {
412 QETH_LARGE_SEND_NO,
413 QETH_LARGE_SEND_TSO,
414 };
415
416 struct qeth_qdio_out_buffer {
417 struct qdio_buffer *buffer;
418 atomic_t state;
419 int next_element_to_fill;
420 struct sk_buff_head skb_list;
421 struct list_head ctx_list;
422 int is_header[16];
423 };
424
425 struct qeth_card;
426
427 enum qeth_out_q_states {
428 QETH_OUT_Q_UNLOCKED,
429 QETH_OUT_Q_LOCKED,
430 QETH_OUT_Q_LOCKED_FLUSH,
431 };
432
433 struct qeth_qdio_out_q {
434 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
435 struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
436 int queue_no;
437 struct qeth_card *card;
438 atomic_t state;
439 int do_pack;
440 /*
441 * index of buffer to be filled by driver; state EMPTY or PACKING
442 */
443 int next_buf_to_fill;
444 /*
445 * number of buffers that are currently filled (PRIMED)
446 * -> these buffers are hardware-owned
447 */
448 atomic_t used_buffers;
449 /* indicates whether PCI flag must be set (or if one is outstanding) */
450 atomic_t set_pci_flags_count;
451 } __attribute__ ((aligned(256)));
452
453 struct qeth_qdio_info {
454 atomic_t state;
455 /* input */
456 struct qeth_qdio_q *in_q;
457 struct qeth_qdio_buffer_pool in_buf_pool;
458 struct qeth_qdio_buffer_pool init_pool;
459 int in_buf_size;
460
461 /* output */
462 int no_out_queues;
463 struct qeth_qdio_out_q **out_qs;
464
465 /* priority queueing */
466 int do_prio_queueing;
467 int default_out_queue;
468 };
469
470 enum qeth_send_errors {
471 QETH_SEND_ERROR_NONE,
472 QETH_SEND_ERROR_LINK_FAILURE,
473 QETH_SEND_ERROR_RETRY,
474 QETH_SEND_ERROR_KICK_IT,
475 };
476
477 #define QETH_ETH_MAC_V4 0x0100 /* like v4 */
478 #define QETH_ETH_MAC_V6 0x3333 /* like v6 */
479 /* tr mc mac is longer, but that will be enough to detect mc frames */
480 #define QETH_TR_MAC_NC 0xc000 /* non-canonical */
481 #define QETH_TR_MAC_C 0x0300 /* canonical */
482
483 #define DEFAULT_ADD_HHLEN 0
484 #define MAX_ADD_HHLEN 1024
485
486 /**
487 * buffer stuff for read channel
488 */
489 #define QETH_CMD_BUFFER_NO 8
490
491 /**
492 * channel state machine
493 */
494 enum qeth_channel_states {
495 CH_STATE_UP,
496 CH_STATE_DOWN,
497 CH_STATE_ACTIVATING,
498 CH_STATE_HALTED,
499 CH_STATE_STOPPED,
500 CH_STATE_RCD,
501 CH_STATE_RCD_DONE,
502 };
503 /**
504 * card state machine
505 */
506 enum qeth_card_states {
507 CARD_STATE_DOWN,
508 CARD_STATE_HARDSETUP,
509 CARD_STATE_SOFTSETUP,
510 CARD_STATE_UP,
511 CARD_STATE_RECOVER,
512 };
513
514 /**
515 * Protocol versions
516 */
517 enum qeth_prot_versions {
518 QETH_PROT_IPV4 = 0x0004,
519 QETH_PROT_IPV6 = 0x0006,
520 };
521
522 enum qeth_ip_types {
523 QETH_IP_TYPE_NORMAL,
524 QETH_IP_TYPE_VIPA,
525 QETH_IP_TYPE_RXIP,
526 QETH_IP_TYPE_DEL_ALL_MC,
527 };
528
529 enum qeth_cmd_buffer_state {
530 BUF_STATE_FREE,
531 BUF_STATE_LOCKED,
532 BUF_STATE_PROCESSED,
533 };
534
535 struct qeth_ipato {
536 int enabled;
537 int invert4;
538 int invert6;
539 struct list_head entries;
540 };
541
542 struct qeth_channel;
543
544 struct qeth_cmd_buffer {
545 enum qeth_cmd_buffer_state state;
546 struct qeth_channel *channel;
547 unsigned char *data;
548 int rc;
549 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
550 };
551
552 /**
553 * definition of a qeth channel, used for read and write
554 */
555 struct qeth_channel {
556 enum qeth_channel_states state;
557 struct ccw1 ccw;
558 spinlock_t iob_lock;
559 wait_queue_head_t wait_q;
560 struct tasklet_struct irq_tasklet;
561 struct ccw_device *ccwdev;
562 /*command buffer for control data*/
563 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
564 atomic_t irq_pending;
565 int io_buf_no;
566 int buf_no;
567 };
568
569 /**
570 * OSA card related definitions
571 */
572 struct qeth_token {
573 __u32 issuer_rm_w;
574 __u32 issuer_rm_r;
575 __u32 cm_filter_w;
576 __u32 cm_filter_r;
577 __u32 cm_connection_w;
578 __u32 cm_connection_r;
579 __u32 ulp_filter_w;
580 __u32 ulp_filter_r;
581 __u32 ulp_connection_w;
582 __u32 ulp_connection_r;
583 };
584
585 struct qeth_seqno {
586 __u32 trans_hdr;
587 __u32 pdu_hdr;
588 __u32 pdu_hdr_ack;
589 __u16 ipa;
590 __u32 pkt_seqno;
591 };
592
593 struct qeth_reply {
594 struct list_head list;
595 wait_queue_head_t wait_q;
596 int (*callback)(struct qeth_card *, struct qeth_reply *,
597 unsigned long);
598 u32 seqno;
599 unsigned long offset;
600 atomic_t received;
601 int rc;
602 void *param;
603 struct qeth_card *card;
604 atomic_t refcnt;
605 };
606
607
608 struct qeth_card_blkt {
609 int time_total;
610 int inter_packet;
611 int inter_packet_jumbo;
612 };
613
614 #define QETH_BROADCAST_WITH_ECHO 0x01
615 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
616 #define QETH_LAYER2_MAC_READ 0x01
617 #define QETH_LAYER2_MAC_REGISTERED 0x02
618 struct qeth_card_info {
619 unsigned short unit_addr2;
620 unsigned short cula;
621 unsigned short chpid;
622 __u16 func_level;
623 char mcl_level[QETH_MCL_LENGTH + 1];
624 int guestlan;
625 int mac_bits;
626 int portname_required;
627 int portno;
628 char portname[9];
629 enum qeth_card_types type;
630 enum qeth_link_types link_type;
631 int is_multicast_different;
632 int initial_mtu;
633 int max_mtu;
634 int broadcast_capable;
635 int unique_id;
636 struct qeth_card_blkt blkt;
637 __u32 csum_mask;
638 __u32 tx_csum_mask;
639 enum qeth_ipa_promisc_modes promisc_mode;
640 };
641
642 struct qeth_card_options {
643 struct qeth_routing_info route4;
644 struct qeth_ipa_info ipa4;
645 struct qeth_ipa_info adp; /*Adapter parameters*/
646 struct qeth_routing_info route6;
647 struct qeth_ipa_info ipa6;
648 enum qeth_checksum_types checksum_type;
649 int broadcast_mode;
650 int macaddr_mode;
651 int fake_broadcast;
652 int add_hhlen;
653 int layer2;
654 enum qeth_large_send_types large_send;
655 int performance_stats;
656 int rx_sg_cb;
657 enum qeth_ipa_isolation_modes isolation;
658 int sniffer;
659 };
660
661 /*
662 * thread bits for qeth_card thread masks
663 */
664 enum qeth_threads {
665 QETH_RECOVER_THREAD = 1,
666 };
667
668 struct qeth_osn_info {
669 int (*assist_cb)(struct net_device *dev, void *data);
670 int (*data_cb)(struct sk_buff *skb);
671 };
672
673 enum qeth_discipline_id {
674 QETH_DISCIPLINE_LAYER3 = 0,
675 QETH_DISCIPLINE_LAYER2 = 1,
676 };
677
678 struct qeth_discipline {
679 void (*start_poll)(struct ccw_device *, int, unsigned long);
680 qdio_handler_t *input_handler;
681 qdio_handler_t *output_handler;
682 int (*recover)(void *ptr);
683 struct ccwgroup_driver *ccwgdriver;
684 };
685
686 struct qeth_vlan_vid {
687 struct list_head list;
688 unsigned short vid;
689 };
690
691 struct qeth_mc_mac {
692 struct list_head list;
693 __u8 mc_addr[MAX_ADDR_LEN];
694 unsigned char mc_addrlen;
695 int is_vmac;
696 };
697
698 struct qeth_rx {
699 int b_count;
700 int b_index;
701 struct qdio_buffer_element *b_element;
702 int e_offset;
703 int qdio_err;
704 };
705
706 #define QETH_NAPI_WEIGHT 128
707
708 struct qeth_card {
709 struct list_head list;
710 enum qeth_card_states state;
711 int lan_online;
712 spinlock_t lock;
713 struct ccwgroup_device *gdev;
714 struct qeth_channel read;
715 struct qeth_channel write;
716 struct qeth_channel data;
717
718 struct net_device *dev;
719 struct net_device_stats stats;
720
721 struct qeth_card_info info;
722 struct qeth_token token;
723 struct qeth_seqno seqno;
724 struct qeth_card_options options;
725
726 wait_queue_head_t wait_q;
727 spinlock_t vlanlock;
728 spinlock_t mclock;
729 struct vlan_group *vlangrp;
730 struct list_head vid_list;
731 struct list_head mc_list;
732 struct work_struct kernel_thread_starter;
733 spinlock_t thread_mask_lock;
734 unsigned long thread_start_mask;
735 unsigned long thread_allowed_mask;
736 unsigned long thread_running_mask;
737 spinlock_t ip_lock;
738 struct list_head ip_list;
739 struct list_head *ip_tbd_list;
740 struct qeth_ipato ipato;
741 struct list_head cmd_waiter_list;
742 /* QDIO buffer handling */
743 struct qeth_qdio_info qdio;
744 struct qeth_perf_stats perf_stats;
745 int read_or_write_problem;
746 struct qeth_osn_info osn_info;
747 struct qeth_discipline discipline;
748 atomic_t force_alloc_skb;
749 struct service_level qeth_service_level;
750 struct qdio_ssqd_desc ssqd;
751 debug_info_t *debug;
752 struct mutex conf_mutex;
753 struct mutex discipline_mutex;
754 struct napi_struct napi;
755 struct qeth_rx rx;
756 };
757
758 struct qeth_card_list_struct {
759 struct list_head list;
760 rwlock_t rwlock;
761 };
762
763 /*some helper functions*/
764 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
765
CARD_FROM_CDEV(struct ccw_device * cdev)766 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
767 {
768 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
769 dev_get_drvdata(&cdev->dev))->dev);
770 return card;
771 }
772
qeth_get_micros(void)773 static inline int qeth_get_micros(void)
774 {
775 return (int) (get_clock() >> 12);
776 }
777
qeth_get_ip_version(struct sk_buff * skb)778 static inline int qeth_get_ip_version(struct sk_buff *skb)
779 {
780 struct ethhdr *ehdr = (struct ethhdr *)skb->data;
781 switch (ehdr->h_proto) {
782 case ETH_P_IPV6:
783 return 6;
784 case ETH_P_IP:
785 return 4;
786 default:
787 return 0;
788 }
789 }
790
qeth_put_buffer_pool_entry(struct qeth_card * card,struct qeth_buffer_pool_entry * entry)791 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
792 struct qeth_buffer_pool_entry *entry)
793 {
794 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
795 }
796
797 extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
798 extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
799 const char *qeth_get_cardname_short(struct qeth_card *);
800 int qeth_realloc_buffer_pool(struct qeth_card *, int);
801 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
802 void qeth_core_free_discipline(struct qeth_card *);
803 int qeth_core_create_device_attributes(struct device *);
804 void qeth_core_remove_device_attributes(struct device *);
805 int qeth_core_create_osn_attributes(struct device *);
806 void qeth_core_remove_osn_attributes(struct device *);
807
808 /* exports for qeth discipline device drivers */
809 extern struct qeth_card_list_struct qeth_core_card_list;
810 extern struct kmem_cache *qeth_core_header_cache;
811 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
812
813 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
814 int qeth_threads_running(struct qeth_card *, unsigned long);
815 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
816 int qeth_do_run_thread(struct qeth_card *, unsigned long);
817 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
818 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
819 int qeth_core_hardsetup_card(struct qeth_card *);
820 void qeth_print_status_message(struct qeth_card *);
821 int qeth_init_qdio_queues(struct qeth_card *);
822 int qeth_send_startlan(struct qeth_card *);
823 int qeth_send_stoplan(struct qeth_card *);
824 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
825 int (*reply_cb)
826 (struct qeth_card *, struct qeth_reply *, unsigned long),
827 void *);
828 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
829 enum qeth_ipa_cmds, enum qeth_prot_versions);
830 int qeth_query_setadapterparms(struct qeth_card *);
831 int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
832 unsigned int, const char *);
833 void qeth_queue_input_buffer(struct qeth_card *, int);
834 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
835 struct qdio_buffer *, struct qdio_buffer_element **, int *,
836 struct qeth_hdr **);
837 void qeth_schedule_recovery(struct qeth_card *);
838 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
839 void qeth_qdio_input_handler(struct ccw_device *,
840 unsigned int, unsigned int, int,
841 int, unsigned long);
842 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
843 int, int, int, unsigned long);
844 void qeth_clear_ipacmd_list(struct qeth_card *);
845 int qeth_qdio_clear_card(struct qeth_card *, int);
846 void qeth_clear_working_pool_list(struct qeth_card *);
847 void qeth_clear_cmd_buffers(struct qeth_channel *);
848 void qeth_clear_qdio_buffers(struct qeth_card *);
849 void qeth_setadp_promisc_mode(struct qeth_card *);
850 struct net_device_stats *qeth_get_stats(struct net_device *);
851 int qeth_change_mtu(struct net_device *, int);
852 int qeth_setadpparms_change_macaddr(struct qeth_card *);
853 void qeth_tx_timeout(struct net_device *);
854 void qeth_prepare_control_data(struct qeth_card *, int,
855 struct qeth_cmd_buffer *);
856 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
857 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
858 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
859 int qeth_mdio_read(struct net_device *, int, int);
860 int qeth_snmp_command(struct qeth_card *, char __user *);
861 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
862 int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
863 unsigned long);
864 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
865 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
866 void *reply_param);
867 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
868 int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
869 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
870 struct sk_buff *, struct qeth_hdr *, int, int, int);
871 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
872 struct sk_buff *, struct qeth_hdr *, int);
873 int qeth_core_get_sset_count(struct net_device *, int);
874 void qeth_core_get_ethtool_stats(struct net_device *,
875 struct ethtool_stats *, u64 *);
876 void qeth_core_get_strings(struct net_device *, u32, u8 *);
877 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
878 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
879 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
880 int qeth_set_access_ctrl_online(struct qeth_card *card);
881 int qeth_hdr_chk_and_bounce(struct sk_buff *, int);
882
883 /* exports for OSN */
884 int qeth_osn_assist(struct net_device *, void *, int);
885 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
886 int (*assist_cb)(struct net_device *, void *),
887 int (*data_cb)(struct sk_buff *));
888 void qeth_osn_deregister(struct net_device *);
889
890 #endif /* __QETH_CORE_H__ */
891