1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright IBM Corp. 2007
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
8 */
9
10 #ifndef __QETH_CORE_H__
11 #define __QETH_CORE_H__
12
13 #include <linux/if.h>
14 #include <linux/if_arp.h>
15 #include <linux/etherdevice.h>
16 #include <linux/if_vlan.h>
17 #include <linux/ctype.h>
18 #include <linux/in6.h>
19 #include <linux/bitops.h>
20 #include <linux/seq_file.h>
21 #include <linux/ethtool.h>
22 #include <linux/hashtable.h>
23 #include <linux/ip.h>
24
25 #include <net/ipv6.h>
26 #include <net/if_inet6.h>
27 #include <net/addrconf.h>
28
29 #include <asm/debug.h>
30 #include <asm/qdio.h>
31 #include <asm/ccwdev.h>
32 #include <asm/ccwgroup.h>
33 #include <asm/sysinfo.h>
34
35 #include "qeth_core_mpc.h"
36
37 /**
38 * Debug Facility stuff
39 */
40 enum qeth_dbf_names {
41 QETH_DBF_SETUP,
42 QETH_DBF_MSG,
43 QETH_DBF_CTRL,
44 QETH_DBF_INFOS /* must be last element */
45 };
46
47 struct qeth_dbf_info {
48 char name[DEBUG_MAX_NAME_LEN];
49 int pages;
50 int areas;
51 int len;
52 int level;
53 struct debug_view *view;
54 debug_info_t *id;
55 };
56
57 #define QETH_DBF_CTRL_LEN 256
58
59 #define QETH_DBF_TEXT(name, level, text) \
60 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
61
62 #define QETH_DBF_HEX(name, level, addr, len) \
63 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
64
65 #define QETH_DBF_MESSAGE(level, text...) \
66 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
67
68 #define QETH_DBF_TEXT_(name, level, text...) \
69 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
70
71 #define QETH_CARD_TEXT(card, level, text) \
72 debug_text_event(card->debug, level, text)
73
74 #define QETH_CARD_HEX(card, level, addr, len) \
75 debug_event(card->debug, level, (void *)(addr), len)
76
77 #define QETH_CARD_MESSAGE(card, text...) \
78 debug_sprintf_event(card->debug, level, text)
79
80 #define QETH_CARD_TEXT_(card, level, text...) \
81 qeth_dbf_longtext(card->debug, level, text)
82
83 #define SENSE_COMMAND_REJECT_BYTE 0
84 #define SENSE_COMMAND_REJECT_FLAG 0x80
85 #define SENSE_RESETTING_EVENT_BYTE 1
86 #define SENSE_RESETTING_EVENT_FLAG 0x80
87
88 /*
89 * Common IO related definitions
90 */
91 #define CARD_RDEV(card) card->read.ccwdev
92 #define CARD_WDEV(card) card->write.ccwdev
93 #define CARD_DDEV(card) card->data.ccwdev
94 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
95 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
96 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
97 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
98 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
99
100 /**
101 * card stuff
102 */
103 struct qeth_perf_stats {
104 unsigned int bufs_rec;
105 unsigned int bufs_sent;
106
107 unsigned int skbs_sent_pack;
108 unsigned int bufs_sent_pack;
109
110 unsigned int sc_dp_p;
111 unsigned int sc_p_dp;
112 /* qdio_cq_handler: number of times called, time spent in */
113 __u64 cq_start_time;
114 unsigned int cq_cnt;
115 unsigned int cq_time;
116 /* qdio_input_handler: number of times called, time spent in */
117 __u64 inbound_start_time;
118 unsigned int inbound_cnt;
119 unsigned int inbound_time;
120 /* qeth_send_packet: number of times called, time spent in */
121 __u64 outbound_start_time;
122 unsigned int outbound_cnt;
123 unsigned int outbound_time;
124 /* qdio_output_handler: number of times called, time spent in */
125 __u64 outbound_handler_start_time;
126 unsigned int outbound_handler_cnt;
127 unsigned int outbound_handler_time;
128 /* number of calls to and time spent in do_QDIO for inbound queue */
129 __u64 inbound_do_qdio_start_time;
130 unsigned int inbound_do_qdio_cnt;
131 unsigned int inbound_do_qdio_time;
132 /* number of calls to and time spent in do_QDIO for outbound queues */
133 __u64 outbound_do_qdio_start_time;
134 unsigned int outbound_do_qdio_cnt;
135 unsigned int outbound_do_qdio_time;
136 unsigned int large_send_bytes;
137 unsigned int large_send_cnt;
138 unsigned int sg_skbs_sent;
139 unsigned int sg_frags_sent;
140 /* initial values when measuring starts */
141 unsigned long initial_rx_packets;
142 unsigned long initial_tx_packets;
143 /* inbound scatter gather data */
144 unsigned int sg_skbs_rx;
145 unsigned int sg_frags_rx;
146 unsigned int sg_alloc_page_rx;
147 unsigned int tx_csum;
148 unsigned int tx_lin;
149 unsigned int tx_linfail;
150 };
151
152 /* Routing stuff */
153 struct qeth_routing_info {
154 enum qeth_routing_types type;
155 };
156
157 /* IPA stuff */
158 struct qeth_ipa_info {
159 __u32 supported_funcs;
160 __u32 enabled_funcs;
161 };
162
163 /* SETBRIDGEPORT stuff */
164 enum qeth_sbp_roles {
165 QETH_SBP_ROLE_NONE = 0,
166 QETH_SBP_ROLE_PRIMARY = 1,
167 QETH_SBP_ROLE_SECONDARY = 2,
168 };
169
170 enum qeth_sbp_states {
171 QETH_SBP_STATE_INACTIVE = 0,
172 QETH_SBP_STATE_STANDBY = 1,
173 QETH_SBP_STATE_ACTIVE = 2,
174 };
175
176 #define QETH_SBP_HOST_NOTIFICATION 1
177
178 struct qeth_sbp_info {
179 __u32 supported_funcs;
180 enum qeth_sbp_roles role;
181 __u32 hostnotification:1;
182 __u32 reflect_promisc:1;
183 __u32 reflect_promisc_primary:1;
184 };
185
qeth_is_ipa_supported(struct qeth_ipa_info * ipa,enum qeth_ipa_funcs func)186 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
187 enum qeth_ipa_funcs func)
188 {
189 return (ipa->supported_funcs & func);
190 }
191
qeth_is_ipa_enabled(struct qeth_ipa_info * ipa,enum qeth_ipa_funcs func)192 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
193 enum qeth_ipa_funcs func)
194 {
195 return (ipa->supported_funcs & ipa->enabled_funcs & func);
196 }
197
198 #define qeth_adp_supported(c, f) \
199 qeth_is_ipa_supported(&c->options.adp, f)
200 #define qeth_adp_enabled(c, f) \
201 qeth_is_ipa_enabled(&c->options.adp, f)
202 #define qeth_is_supported(c, f) \
203 qeth_is_ipa_supported(&c->options.ipa4, f)
204 #define qeth_is_enabled(c, f) \
205 qeth_is_ipa_enabled(&c->options.ipa4, f)
206 #define qeth_is_supported6(c, f) \
207 qeth_is_ipa_supported(&c->options.ipa6, f)
208 #define qeth_is_enabled6(c, f) \
209 qeth_is_ipa_enabled(&c->options.ipa6, f)
210 #define qeth_is_ipafunc_supported(c, prot, f) \
211 ((prot == QETH_PROT_IPV6) ? \
212 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
213 #define qeth_is_ipafunc_enabled(c, prot, f) \
214 ((prot == QETH_PROT_IPV6) ? \
215 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
216
217 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101
218 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108
219
220 #define QETH_MODELLIST_ARRAY \
221 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
222 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
223 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
224 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
225 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
226 {0, 0, 0, 0, 0, 0} }
227 #define QETH_CU_TYPE_IND 0
228 #define QETH_CU_MODEL_IND 1
229 #define QETH_DEV_TYPE_IND 2
230 #define QETH_DEV_MODEL_IND 3
231 #define QETH_QUEUE_NO_IND 4
232 #define QETH_MULTICAST_IND 5
233
234 #define QETH_REAL_CARD 1
235 #define QETH_VLAN_CARD 2
236 #define QETH_BUFSIZE 4096
237
238 /**
239 * some more defs
240 */
241 #define QETH_TX_TIMEOUT 100 * HZ
242 #define QETH_RCD_TIMEOUT 60 * HZ
243 #define QETH_RECLAIM_WORK_TIME HZ
244 #define QETH_MAX_PORTNO 15
245
246 /*IPv6 address autoconfiguration stuff*/
247 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
248 #define UNIQUE_ID_NOT_BY_CARD 0x10000
249
250 /*****************************************************************************/
251 /* QDIO queue and buffer handling */
252 /*****************************************************************************/
253 #define QETH_MAX_QUEUES 4
254 #define QETH_IN_BUF_SIZE_DEFAULT 65536
255 #define QETH_IN_BUF_COUNT_DEFAULT 64
256 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
257 #define QETH_IN_BUF_COUNT_MIN 8
258 #define QETH_IN_BUF_COUNT_MAX 128
259 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
260 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
261 ((card)->qdio.in_buf_pool.buf_count / 2)
262
263 /* buffers we have to be behind before we get a PCI */
264 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
265 /*enqueued free buffers left before we get a PCI*/
266 #define QETH_PCI_THRESHOLD_B(card) 0
267 /*not used unless the microcode gets patched*/
268 #define QETH_PCI_TIMER_VALUE(card) 3
269
270 /* priority queing */
271 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
272 #define QETH_DEFAULT_QUEUE 2
273 #define QETH_NO_PRIO_QUEUEING 0
274 #define QETH_PRIO_Q_ING_PREC 1
275 #define QETH_PRIO_Q_ING_TOS 2
276 #define QETH_PRIO_Q_ING_SKB 3
277 #define QETH_PRIO_Q_ING_VLAN 4
278
279 /* Packing */
280 #define QETH_LOW_WATERMARK_PACK 2
281 #define QETH_HIGH_WATERMARK_PACK 5
282 #define QETH_WATERMARK_PACK_FUZZ 1
283
284 /* large receive scatter gather copy break */
285 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
286 #define QETH_RX_PULL_LEN 256
287
288 struct qeth_hdr_layer3 {
289 __u8 id;
290 __u8 flags;
291 __u16 inbound_checksum; /*TSO:__u16 seqno */
292 __u32 token; /*TSO: __u32 reserved */
293 __u16 length;
294 __u8 vlan_prio;
295 __u8 ext_flags;
296 __u16 vlan_id;
297 __u16 frame_offset;
298 __u8 dest_addr[16];
299 } __attribute__ ((packed));
300
301 struct qeth_hdr_layer2 {
302 __u8 id;
303 __u8 flags[3];
304 __u8 port_no;
305 __u8 hdr_length;
306 __u16 pkt_length;
307 __u16 seq_no;
308 __u16 vlan_id;
309 __u32 reserved;
310 __u8 reserved2[16];
311 } __attribute__ ((packed));
312
313 struct qeth_hdr_osn {
314 __u8 id;
315 __u8 reserved;
316 __u16 seq_no;
317 __u16 reserved2;
318 __u16 control_flags;
319 __u16 pdu_length;
320 __u8 reserved3[18];
321 __u32 ccid;
322 } __attribute__ ((packed));
323
324 struct qeth_hdr {
325 union {
326 struct qeth_hdr_layer2 l2;
327 struct qeth_hdr_layer3 l3;
328 struct qeth_hdr_osn osn;
329 } hdr;
330 } __attribute__ ((packed));
331
332 /*TCP Segmentation Offload header*/
333 struct qeth_hdr_ext_tso {
334 __u16 hdr_tot_len;
335 __u8 imb_hdr_no;
336 __u8 reserved;
337 __u8 hdr_type;
338 __u8 hdr_version;
339 __u16 hdr_len;
340 __u32 payload_len;
341 __u16 mss;
342 __u16 dg_hdr_len;
343 __u8 padding[16];
344 } __attribute__ ((packed));
345
346 struct qeth_hdr_tso {
347 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
348 struct qeth_hdr_ext_tso ext;
349 } __attribute__ ((packed));
350
351
352 /* flags for qeth_hdr.flags */
353 #define QETH_HDR_PASSTHRU 0x10
354 #define QETH_HDR_IPV6 0x80
355 #define QETH_HDR_CAST_MASK 0x07
356 enum qeth_cast_flags {
357 QETH_CAST_UNICAST = 0x06,
358 QETH_CAST_MULTICAST = 0x04,
359 QETH_CAST_BROADCAST = 0x05,
360 QETH_CAST_ANYCAST = 0x07,
361 QETH_CAST_NOCAST = 0x00,
362 };
363
364 enum qeth_layer2_frame_flags {
365 QETH_LAYER2_FLAG_MULTICAST = 0x01,
366 QETH_LAYER2_FLAG_BROADCAST = 0x02,
367 QETH_LAYER2_FLAG_UNICAST = 0x04,
368 QETH_LAYER2_FLAG_VLAN = 0x10,
369 };
370
371 enum qeth_header_ids {
372 QETH_HEADER_TYPE_LAYER3 = 0x01,
373 QETH_HEADER_TYPE_LAYER2 = 0x02,
374 QETH_HEADER_TYPE_TSO = 0x03,
375 QETH_HEADER_TYPE_OSN = 0x04,
376 };
377 /* flags for qeth_hdr.ext_flags */
378 #define QETH_HDR_EXT_VLAN_FRAME 0x01
379 #define QETH_HDR_EXT_TOKEN_ID 0x02
380 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
381 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
382 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
383 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
384 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
385
386 enum qeth_qdio_buffer_states {
387 /*
388 * inbound: read out by driver; owned by hardware in order to be filled
389 * outbound: owned by driver in order to be filled
390 */
391 QETH_QDIO_BUF_EMPTY,
392 /*
393 * inbound: filled by hardware; owned by driver in order to be read out
394 * outbound: filled by driver; owned by hardware in order to be sent
395 */
396 QETH_QDIO_BUF_PRIMED,
397 /*
398 * inbound: not applicable
399 * outbound: identified to be pending in TPQ
400 */
401 QETH_QDIO_BUF_PENDING,
402 /*
403 * inbound: not applicable
404 * outbound: found in completion queue
405 */
406 QETH_QDIO_BUF_IN_CQ,
407 /*
408 * inbound: not applicable
409 * outbound: handled via transfer pending / completion queue
410 */
411 QETH_QDIO_BUF_HANDLED_DELAYED,
412 };
413
414 enum qeth_qdio_info_states {
415 QETH_QDIO_UNINITIALIZED,
416 QETH_QDIO_ALLOCATED,
417 QETH_QDIO_ESTABLISHED,
418 QETH_QDIO_CLEANING
419 };
420
421 struct qeth_buffer_pool_entry {
422 struct list_head list;
423 struct list_head init_list;
424 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
425 };
426
427 struct qeth_qdio_buffer_pool {
428 struct list_head entry_list;
429 int buf_count;
430 };
431
432 struct qeth_qdio_buffer {
433 struct qdio_buffer *buffer;
434 /* the buffer pool entry currently associated to this buffer */
435 struct qeth_buffer_pool_entry *pool_entry;
436 struct sk_buff *rx_skb;
437 };
438
439 struct qeth_qdio_q {
440 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
441 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
442 int next_buf_to_init;
443 };
444
445 struct qeth_qdio_out_buffer {
446 struct qdio_buffer *buffer;
447 atomic_t state;
448 int next_element_to_fill;
449 struct sk_buff_head skb_list;
450 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
451
452 struct qaob *aob;
453 struct qeth_qdio_out_q *q;
454 struct qeth_qdio_out_buffer *next_pending;
455 };
456
457 struct qeth_card;
458
459 enum qeth_out_q_states {
460 QETH_OUT_Q_UNLOCKED,
461 QETH_OUT_Q_LOCKED,
462 QETH_OUT_Q_LOCKED_FLUSH,
463 };
464
465 struct qeth_qdio_out_q {
466 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
467 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
468 struct qdio_outbuf_state *bufstates; /* convenience pointer */
469 int queue_no;
470 struct qeth_card *card;
471 atomic_t state;
472 int do_pack;
473 /*
474 * index of buffer to be filled by driver; state EMPTY or PACKING
475 */
476 int next_buf_to_fill;
477 /*
478 * number of buffers that are currently filled (PRIMED)
479 * -> these buffers are hardware-owned
480 */
481 atomic_t used_buffers;
482 /* indicates whether PCI flag must be set (or if one is outstanding) */
483 atomic_t set_pci_flags_count;
484 };
485
486 struct qeth_qdio_info {
487 atomic_t state;
488 /* input */
489 int no_in_queues;
490 struct qeth_qdio_q *in_q;
491 struct qeth_qdio_q *c_q;
492 struct qeth_qdio_buffer_pool in_buf_pool;
493 struct qeth_qdio_buffer_pool init_pool;
494 int in_buf_size;
495
496 /* output */
497 int no_out_queues;
498 struct qeth_qdio_out_q **out_qs;
499 struct qdio_outbuf_state *out_bufstates;
500
501 /* priority queueing */
502 int do_prio_queueing;
503 int default_out_queue;
504 };
505
506 #define QETH_ETH_MAC_V4 0x0100 /* like v4 */
507 #define QETH_ETH_MAC_V6 0x3333 /* like v6 */
508 /* tr mc mac is longer, but that will be enough to detect mc frames */
509 #define QETH_TR_MAC_NC 0xc000 /* non-canonical */
510 #define QETH_TR_MAC_C 0x0300 /* canonical */
511
512 /**
513 * buffer stuff for read channel
514 */
515 #define QETH_CMD_BUFFER_NO 8
516
517 /**
518 * channel state machine
519 */
520 enum qeth_channel_states {
521 CH_STATE_UP,
522 CH_STATE_DOWN,
523 CH_STATE_ACTIVATING,
524 CH_STATE_HALTED,
525 CH_STATE_STOPPED,
526 CH_STATE_RCD,
527 CH_STATE_RCD_DONE,
528 };
529 /**
530 * card state machine
531 */
532 enum qeth_card_states {
533 CARD_STATE_DOWN,
534 CARD_STATE_HARDSETUP,
535 CARD_STATE_SOFTSETUP,
536 CARD_STATE_UP,
537 CARD_STATE_RECOVER,
538 };
539
540 /**
541 * Protocol versions
542 */
543 enum qeth_prot_versions {
544 QETH_PROT_IPV4 = 0x0004,
545 QETH_PROT_IPV6 = 0x0006,
546 };
547
548 enum qeth_ip_types {
549 QETH_IP_TYPE_NORMAL,
550 QETH_IP_TYPE_VIPA,
551 QETH_IP_TYPE_RXIP,
552 };
553
554 enum qeth_cmd_buffer_state {
555 BUF_STATE_FREE,
556 BUF_STATE_LOCKED,
557 BUF_STATE_PROCESSED,
558 };
559
560 enum qeth_cq {
561 QETH_CQ_DISABLED = 0,
562 QETH_CQ_ENABLED = 1,
563 QETH_CQ_NOTAVAILABLE = 2,
564 };
565
566 struct qeth_ipato {
567 bool enabled;
568 bool invert4;
569 bool invert6;
570 struct list_head entries;
571 };
572
573 struct qeth_channel;
574
575 struct qeth_cmd_buffer {
576 enum qeth_cmd_buffer_state state;
577 struct qeth_channel *channel;
578 unsigned char *data;
579 int rc;
580 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
581 };
582
__ipa_cmd(struct qeth_cmd_buffer * iob)583 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
584 {
585 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
586 }
587
588 /**
589 * definition of a qeth channel, used for read and write
590 */
591 struct qeth_channel {
592 enum qeth_channel_states state;
593 struct ccw1 ccw;
594 spinlock_t iob_lock;
595 wait_queue_head_t wait_q;
596 struct ccw_device *ccwdev;
597 /*command buffer for control data*/
598 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
599 atomic_t irq_pending;
600 int io_buf_no;
601 int buf_no;
602 };
603
604 /**
605 * OSA card related definitions
606 */
607 struct qeth_token {
608 __u32 issuer_rm_w;
609 __u32 issuer_rm_r;
610 __u32 cm_filter_w;
611 __u32 cm_filter_r;
612 __u32 cm_connection_w;
613 __u32 cm_connection_r;
614 __u32 ulp_filter_w;
615 __u32 ulp_filter_r;
616 __u32 ulp_connection_w;
617 __u32 ulp_connection_r;
618 };
619
620 struct qeth_seqno {
621 __u32 trans_hdr;
622 __u32 pdu_hdr;
623 __u32 pdu_hdr_ack;
624 __u16 ipa;
625 __u32 pkt_seqno;
626 };
627
628 struct qeth_reply {
629 struct list_head list;
630 wait_queue_head_t wait_q;
631 int (*callback)(struct qeth_card *, struct qeth_reply *,
632 unsigned long);
633 u32 seqno;
634 unsigned long offset;
635 atomic_t received;
636 int rc;
637 void *param;
638 struct qeth_card *card;
639 atomic_t refcnt;
640 };
641
642 struct qeth_card_blkt {
643 int time_total;
644 int inter_packet;
645 int inter_packet_jumbo;
646 };
647
648 #define QETH_BROADCAST_WITH_ECHO 0x01
649 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
650 #define QETH_LAYER2_MAC_READ 0x01
651 #define QETH_LAYER2_MAC_REGISTERED 0x02
652 struct qeth_card_info {
653 unsigned short unit_addr2;
654 unsigned short cula;
655 unsigned short chpid;
656 __u16 func_level;
657 char mcl_level[QETH_MCL_LENGTH + 1];
658 int guestlan;
659 int mac_bits;
660 int portno;
661 enum qeth_card_types type;
662 enum qeth_link_types link_type;
663 int is_multicast_different;
664 int initial_mtu;
665 int max_mtu;
666 int broadcast_capable;
667 int unique_id;
668 bool layer_enforced;
669 struct qeth_card_blkt blkt;
670 enum qeth_ipa_promisc_modes promisc_mode;
671 __u32 diagass_support;
672 __u32 hwtrap;
673 };
674
675 struct qeth_card_options {
676 struct qeth_routing_info route4;
677 struct qeth_ipa_info ipa4;
678 struct qeth_ipa_info adp; /*Adapter parameters*/
679 struct qeth_routing_info route6;
680 struct qeth_ipa_info ipa6;
681 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
682 int fake_broadcast;
683 int layer2;
684 int performance_stats;
685 int rx_sg_cb;
686 enum qeth_ipa_isolation_modes isolation;
687 enum qeth_ipa_isolation_modes prev_isolation;
688 int sniffer;
689 enum qeth_cq cq;
690 char hsuid[9];
691 };
692
693 /*
694 * thread bits for qeth_card thread masks
695 */
696 enum qeth_threads {
697 QETH_RECOVER_THREAD = 1,
698 };
699
700 struct qeth_osn_info {
701 int (*assist_cb)(struct net_device *dev, void *data);
702 int (*data_cb)(struct sk_buff *skb);
703 };
704
705 enum qeth_discipline_id {
706 QETH_DISCIPLINE_UNDETERMINED = -1,
707 QETH_DISCIPLINE_LAYER3 = 0,
708 QETH_DISCIPLINE_LAYER2 = 1,
709 };
710
711 struct qeth_discipline {
712 const struct device_type *devtype;
713 void (*start_poll)(struct ccw_device *, int, unsigned long);
714 qdio_handler_t *input_handler;
715 qdio_handler_t *output_handler;
716 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
717 int (*recover)(void *ptr);
718 int (*setup) (struct ccwgroup_device *);
719 void (*remove) (struct ccwgroup_device *);
720 int (*set_online) (struct ccwgroup_device *);
721 int (*set_offline) (struct ccwgroup_device *);
722 int (*freeze)(struct ccwgroup_device *);
723 int (*thaw) (struct ccwgroup_device *);
724 int (*restore)(struct ccwgroup_device *);
725 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
726 int (*control_event_handler)(struct qeth_card *card,
727 struct qeth_ipa_cmd *cmd);
728 };
729
730 struct qeth_vlan_vid {
731 struct list_head list;
732 unsigned short vid;
733 };
734
735 enum qeth_addr_disposition {
736 QETH_DISP_ADDR_DELETE = 0,
737 QETH_DISP_ADDR_DO_NOTHING = 1,
738 QETH_DISP_ADDR_ADD = 2,
739 };
740
741 struct qeth_rx {
742 int b_count;
743 int b_index;
744 struct qdio_buffer_element *b_element;
745 int e_offset;
746 int qdio_err;
747 };
748
749 struct carrier_info {
750 __u8 card_type;
751 __u16 port_mode;
752 __u32 port_speed;
753 };
754
755 struct qeth_switch_info {
756 __u32 capabilities;
757 __u32 settings;
758 };
759
760 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
761
762 struct qeth_card {
763 struct list_head list;
764 enum qeth_card_states state;
765 int lan_online;
766 spinlock_t lock;
767 struct ccwgroup_device *gdev;
768 struct qeth_channel read;
769 struct qeth_channel write;
770 struct qeth_channel data;
771
772 struct net_device *dev;
773 struct net_device_stats stats;
774
775 struct qeth_card_info info;
776 struct qeth_token token;
777 struct qeth_seqno seqno;
778 struct qeth_card_options options;
779
780 wait_queue_head_t wait_q;
781 spinlock_t vlanlock;
782 spinlock_t mclock;
783 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
784 struct list_head vid_list;
785 DECLARE_HASHTABLE(mac_htable, 4);
786 DECLARE_HASHTABLE(ip_htable, 4);
787 DECLARE_HASHTABLE(ip_mc_htable, 4);
788 struct work_struct kernel_thread_starter;
789 spinlock_t thread_mask_lock;
790 unsigned long thread_start_mask;
791 unsigned long thread_allowed_mask;
792 unsigned long thread_running_mask;
793 struct task_struct *recovery_task;
794 spinlock_t ip_lock;
795 struct qeth_ipato ipato;
796 struct list_head cmd_waiter_list;
797 /* QDIO buffer handling */
798 struct qeth_qdio_info qdio;
799 struct qeth_perf_stats perf_stats;
800 int read_or_write_problem;
801 struct qeth_osn_info osn_info;
802 struct qeth_discipline *discipline;
803 atomic_t force_alloc_skb;
804 struct service_level qeth_service_level;
805 struct qdio_ssqd_desc ssqd;
806 debug_info_t *debug;
807 struct mutex conf_mutex;
808 struct mutex discipline_mutex;
809 struct napi_struct napi;
810 struct qeth_rx rx;
811 struct delayed_work buffer_reclaim_work;
812 int reclaim_index;
813 struct work_struct close_dev_work;
814 };
815
816 struct qeth_card_list_struct {
817 struct list_head list;
818 rwlock_t rwlock;
819 };
820
821 struct qeth_trap_id {
822 __u16 lparnr;
823 char vmname[8];
824 __u8 chpid;
825 __u8 ssid;
826 __u16 devno;
827 } __packed;
828
829 /*some helper functions*/
830 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
831
832 /**
833 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
834 * @start: Start of the address range.
835 * @end: Address after the end of the range.
836 *
837 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
838 * the specified address range.
839 */
qeth_get_elements_for_range(addr_t start,addr_t end)840 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
841 {
842 return PFN_UP(end) - PFN_DOWN(start);
843 }
844
qeth_get_micros(void)845 static inline int qeth_get_micros(void)
846 {
847 return (int) (get_tod_clock() >> 12);
848 }
849
qeth_get_ip_version(struct sk_buff * skb)850 static inline int qeth_get_ip_version(struct sk_buff *skb)
851 {
852 __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
853
854 if (be16_to_cpu(*p) == ETH_P_8021Q)
855 p += 2;
856 switch (be16_to_cpu(*p)) {
857 case ETH_P_IPV6:
858 return 6;
859 case ETH_P_IP:
860 return 4;
861 default:
862 return 0;
863 }
864 }
865
qeth_put_buffer_pool_entry(struct qeth_card * card,struct qeth_buffer_pool_entry * entry)866 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
867 struct qeth_buffer_pool_entry *entry)
868 {
869 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
870 }
871
qeth_is_diagass_supported(struct qeth_card * card,enum qeth_diags_cmds cmd)872 static inline int qeth_is_diagass_supported(struct qeth_card *card,
873 enum qeth_diags_cmds cmd)
874 {
875 return card->info.diagass_support & (__u32)cmd;
876 }
877
878 extern struct qeth_discipline qeth_l2_discipline;
879 extern struct qeth_discipline qeth_l3_discipline;
880 extern const struct attribute_group *qeth_generic_attr_groups[];
881 extern const struct attribute_group *qeth_osn_attr_groups[];
882 extern const struct attribute_group qeth_device_attr_group;
883 extern const struct attribute_group qeth_device_blkt_group;
884 extern const struct device_type qeth_generic_devtype;
885 extern struct workqueue_struct *qeth_wq;
886
887 int qeth_card_hw_is_reachable(struct qeth_card *);
888 const char *qeth_get_cardname_short(struct qeth_card *);
889 int qeth_realloc_buffer_pool(struct qeth_card *, int);
890 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
891 void qeth_core_free_discipline(struct qeth_card *);
892
893 /* exports for qeth discipline device drivers */
894 extern struct qeth_card_list_struct qeth_core_card_list;
895 extern struct kmem_cache *qeth_core_header_cache;
896 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
897
898 void qeth_set_recovery_task(struct qeth_card *);
899 void qeth_clear_recovery_task(struct qeth_card *);
900 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
901 int qeth_threads_running(struct qeth_card *, unsigned long);
902 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
903 int qeth_do_run_thread(struct qeth_card *, unsigned long);
904 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
905 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
906 int qeth_core_hardsetup_card(struct qeth_card *);
907 void qeth_print_status_message(struct qeth_card *);
908 int qeth_init_qdio_queues(struct qeth_card *);
909 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
910 int (*reply_cb)
911 (struct qeth_card *, struct qeth_reply *, unsigned long),
912 void *);
913 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
914 enum qeth_ipa_cmds, enum qeth_prot_versions);
915 int qeth_query_setadapterparms(struct qeth_card *);
916 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
917 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
918 struct qeth_hdr **);
919 void qeth_schedule_recovery(struct qeth_card *);
920 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
921 int qeth_poll(struct napi_struct *napi, int budget);
922 void qeth_qdio_input_handler(struct ccw_device *,
923 unsigned int, unsigned int, int,
924 int, unsigned long);
925 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
926 int, int, int, unsigned long);
927 void qeth_clear_ipacmd_list(struct qeth_card *);
928 int qeth_qdio_clear_card(struct qeth_card *, int);
929 void qeth_clear_working_pool_list(struct qeth_card *);
930 void qeth_clear_cmd_buffers(struct qeth_channel *);
931 void qeth_clear_qdio_buffers(struct qeth_card *);
932 void qeth_setadp_promisc_mode(struct qeth_card *);
933 struct net_device_stats *qeth_get_stats(struct net_device *);
934 int qeth_change_mtu(struct net_device *, int);
935 int qeth_setadpparms_change_macaddr(struct qeth_card *);
936 void qeth_tx_timeout(struct net_device *);
937 void qeth_prepare_control_data(struct qeth_card *, int,
938 struct qeth_cmd_buffer *);
939 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
940 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
941 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
942 int qeth_query_switch_attributes(struct qeth_card *card,
943 struct qeth_switch_info *sw_info);
944 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
945 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
946 void *reply_param);
947 int qeth_bridgeport_query_ports(struct qeth_card *card,
948 enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
949 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
950 int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
951 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
952 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb,
953 int extra_elems, int data_offset);
954 int qeth_get_elements_for_frags(struct sk_buff *);
955 int qeth_do_send_packet_fast(struct qeth_card *card,
956 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
957 struct qeth_hdr *hdr, unsigned int offset,
958 unsigned int hd_len);
959 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
960 struct sk_buff *skb, struct qeth_hdr *hdr,
961 unsigned int hd_len, unsigned int offset, int elements);
962 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
963 int qeth_core_get_sset_count(struct net_device *, int);
964 void qeth_core_get_ethtool_stats(struct net_device *,
965 struct ethtool_stats *, u64 *);
966 void qeth_core_get_strings(struct net_device *, u32, u8 *);
967 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
968 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
969 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev,
970 struct ethtool_link_ksettings *cmd);
971 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
972 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
973 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
974 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
975 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
976 void qeth_trace_features(struct qeth_card *);
977 void qeth_close_dev(struct qeth_card *);
978 int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
979 __u16, long);
980 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
981 long,
982 int (*reply_cb)(struct qeth_card *,
983 struct qeth_reply *, unsigned long),
984 void *);
985 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
986 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
987 enum qeth_ipa_funcs,
988 __u16, __u16,
989 enum qeth_prot_versions);
990 int qeth_set_features(struct net_device *, netdev_features_t);
991 int qeth_recover_features(struct net_device *);
992 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
993 netdev_features_t qeth_features_check(struct sk_buff *skb,
994 struct net_device *dev,
995 netdev_features_t features);
996 int qeth_vm_request_mac(struct qeth_card *card);
997 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len);
998
999 /* exports for OSN */
1000 int qeth_osn_assist(struct net_device *, void *, int);
1001 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1002 int (*assist_cb)(struct net_device *, void *),
1003 int (*data_cb)(struct sk_buff *));
1004 void qeth_osn_deregister(struct net_device *);
1005
1006 #endif /* __QETH_CORE_H__ */
1007