projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge remote-tracking branch 'asoc/fix/core' into asoc-linus
[linux-2.6-block.git] / drivers / s390 / net / qeth_core.h
CommitLineData
4a71df50 1/*
4a71df50
FB		 2 * Copyright IBM Corp. 2007
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
7 */
8
9#ifndef __QETH_CORE_H__
10#define __QETH_CORE_H__
11
12#include <linux/if.h>
13#include <linux/if_arp.h>
4a71df50
FB		 14#include <linux/etherdevice.h>
15#include <linux/if_vlan.h>
16#include <linux/ctype.h>
17#include <linux/in6.h>
18#include <linux/bitops.h>
19#include <linux/seq_file.h>
20#include <linux/ethtool.h>
21
22#include <net/ipv6.h>
23#include <net/if_inet6.h>
24#include <net/addrconf.h>
25
26#include <asm/debug.h>
27#include <asm/qdio.h>
28#include <asm/ccwdev.h>
29#include <asm/ccwgroup.h>
6bcac508 30#include <asm/sysinfo.h>
4a71df50
FB		 31
32#include "qeth_core_mpc.h"
33
34/**
35 * Debug Facility stuff
36 */
d11ba0c4
PT		 37enum qeth_dbf_names {
38 QETH_DBF_SETUP,
d11ba0c4 39 QETH_DBF_MSG,
d11ba0c4
PT		 40 QETH_DBF_CTRL,
41 QETH_DBF_INFOS /* must be last element */
42};
43
44struct qeth_dbf_info {
45 char name[DEBUG_MAX_NAME_LEN];
46 int pages;
47 int areas;
48 int len;
49 int level;
50 struct debug_view *view;
51 debug_info_t *id;
52};
53
54#define QETH_DBF_CTRL_LEN 256
4a71df50
FB		 55
56#define QETH_DBF_TEXT(name, level, text) \
d11ba0c4 57 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
4a71df50
FB		 58
59#define QETH_DBF_HEX(name, level, addr, len) \
d11ba0c4
PT		 60 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
61
62#define QETH_DBF_MESSAGE(level, text...) \
63 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
64
65#define QETH_DBF_TEXT_(name, level, text...) \
8e96c51c 66 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
4a71df50 67
af039068
CO		 68#define QETH_CARD_TEXT(card, level, text) \
69 debug_text_event(card->debug, level, text)
70
71#define QETH_CARD_HEX(card, level, addr, len) \
72 debug_event(card->debug, level, (void *)(addr), len)
73
74#define QETH_CARD_MESSAGE(card, text...) \
75 debug_sprintf_event(card->debug, level, text)
76
77#define QETH_CARD_TEXT_(card, level, text...) \
78 qeth_dbf_longtext(card->debug, level, text)
79
4a71df50
FB		 80#define SENSE_COMMAND_REJECT_BYTE 0
81#define SENSE_COMMAND_REJECT_FLAG 0x80
82#define SENSE_RESETTING_EVENT_BYTE 1
83#define SENSE_RESETTING_EVENT_FLAG 0x80
84
85/*
86 * Common IO related definitions
87 */
88#define CARD_RDEV(card) card->read.ccwdev
89#define CARD_WDEV(card) card->write.ccwdev
90#define CARD_DDEV(card) card->data.ccwdev
2a0217d5
KS		 91#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
92#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
93#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
94#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
95#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
4a71df50
FB		 96
97/**
98 * card stuff
99 */
100struct qeth_perf_stats {
101 unsigned int bufs_rec;
102 unsigned int bufs_sent;
103
104 unsigned int skbs_sent_pack;
105 unsigned int bufs_sent_pack;
106
107 unsigned int sc_dp_p;
108 unsigned int sc_p_dp;
0da9581d
EL		 109 /* qdio_cq_handler: number of times called, time spent in */
110 __u64 cq_start_time;
111 unsigned int cq_cnt;
112 unsigned int cq_time;
4a71df50
FB		 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;
4a71df50
FB		 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;
f61a0d05 144 unsigned int tx_csum;
c3b4a740 145 unsigned int tx_lin;
4a71df50
FB		 146};
147
148/* Routing stuff */
149struct qeth_routing_info {
150 enum qeth_routing_types type;
151};
152
153/* IPA stuff */
154struct qeth_ipa_info {
155 __u32 supported_funcs;
156 __u32 enabled_funcs;
157};
158
b4d72c08
EC		 159/* SETBRIDGEPORT stuff */
160enum qeth_sbp_roles {
161 QETH_SBP_ROLE_NONE = 0,
162 QETH_SBP_ROLE_PRIMARY = 1,
163 QETH_SBP_ROLE_SECONDARY = 2,
164};
165
166enum qeth_sbp_states {
167 QETH_SBP_STATE_INACTIVE = 0,
168 QETH_SBP_STATE_STANDBY = 1,
169 QETH_SBP_STATE_ACTIVE = 2,
170};
171
9f48b9db
EC		 172#define QETH_SBP_HOST_NOTIFICATION 1
173
b4d72c08
EC		 174struct qeth_sbp_info {
175 __u32 supported_funcs;
176 enum qeth_sbp_roles role;
9f48b9db 177 __u32 hostnotification:1;
b4d72c08
EC		 178};
179
4a71df50
FB		 180static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
181 enum qeth_ipa_funcs func)
182{
183 return (ipa->supported_funcs & func);
184}
185
186static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
187 enum qeth_ipa_funcs func)
188{
189 return (ipa->supported_funcs & ipa->enabled_funcs & func);
190}
191
192#define qeth_adp_supported(c, f) \
193 qeth_is_ipa_supported(&c->options.adp, f)
194#define qeth_adp_enabled(c, f) \
195 qeth_is_ipa_enabled(&c->options.adp, f)
196#define qeth_is_supported(c, f) \
197 qeth_is_ipa_supported(&c->options.ipa4, f)
198#define qeth_is_enabled(c, f) \
199 qeth_is_ipa_enabled(&c->options.ipa4, f)
200#define qeth_is_supported6(c, f) \
201 qeth_is_ipa_supported(&c->options.ipa6, f)
202#define qeth_is_enabled6(c, f) \
203 qeth_is_ipa_enabled(&c->options.ipa6, f)
204#define qeth_is_ipafunc_supported(c, prot, f) \
205 ((prot == QETH_PROT_IPV6) ? \
206 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
207#define qeth_is_ipafunc_enabled(c, prot, f) \
208 ((prot == QETH_PROT_IPV6) ? \
209 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
210
5113fec0 211#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
6298263a 212#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
4a71df50
FB		 213
214#define QETH_MODELLIST_ARRAY \
5113fec0
UB		 215 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
216 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
217 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
218 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
219 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
220 {0, 0, 0, 0, 0, 0} }
221#define QETH_CU_TYPE_IND 0
222#define QETH_CU_MODEL_IND 1
223#define QETH_DEV_TYPE_IND 2
224#define QETH_DEV_MODEL_IND 3
225#define QETH_QUEUE_NO_IND 4
226#define QETH_MULTICAST_IND 5
4a71df50
FB		 227
228#define QETH_REAL_CARD 1
229#define QETH_VLAN_CARD 2
230#define QETH_BUFSIZE 4096
231
232/**
233 * some more defs
234 */
235#define QETH_TX_TIMEOUT 100 * HZ
236#define QETH_RCD_TIMEOUT 60 * HZ
b3332930 237#define QETH_RECLAIM_WORK_TIME HZ
4a71df50
FB		 238#define QETH_HEADER_SIZE 32
239#define QETH_MAX_PORTNO 15
240
241/*IPv6 address autoconfiguration stuff*/
242#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
243#define UNIQUE_ID_NOT_BY_CARD 0x10000
244
245/*****************************************************************************/
246/* QDIO queue and buffer handling */
247/*****************************************************************************/
248#define QETH_MAX_QUEUES 4
249#define QETH_IN_BUF_SIZE_DEFAULT 65536
dcf4ae2d
FB		 250#define QETH_IN_BUF_COUNT_DEFAULT 64
251#define QETH_IN_BUF_COUNT_HSDEFAULT 128
4a71df50
FB		 252#define QETH_IN_BUF_COUNT_MIN 8
253#define QETH_IN_BUF_COUNT_MAX 128
254#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
255#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
0284a0fd 256 ((card)->qdio.in_buf_pool.buf_count / 2)
4a71df50
FB		 257
258/* buffers we have to be behind before we get a PCI */
259#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
260/*enqueued free buffers left before we get a PCI*/
261#define QETH_PCI_THRESHOLD_B(card) 0
262/*not used unless the microcode gets patched*/
263#define QETH_PCI_TIMER_VALUE(card) 3
264
4a71df50
FB		 265/* priority queing */
266#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
267#define QETH_DEFAULT_QUEUE 2
268#define QETH_NO_PRIO_QUEUEING 0
269#define QETH_PRIO_Q_ING_PREC 1
270#define QETH_PRIO_Q_ING_TOS 2
d66cb37e
SR		 271#define QETH_PRIO_Q_ING_SKB 3
272#define QETH_PRIO_Q_ING_VLAN 4
4a71df50
FB		 273
274/* Packing */
275#define QETH_LOW_WATERMARK_PACK 2
276#define QETH_HIGH_WATERMARK_PACK 5
277#define QETH_WATERMARK_PACK_FUZZ 1
278
279#define QETH_IP_HEADER_SIZE 40
280
281/* large receive scatter gather copy break */
282#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
b3332930 283#define QETH_RX_PULL_LEN 256
4a71df50
FB		 284
285struct qeth_hdr_layer3 {
286 __u8 id;
287 __u8 flags;
288 __u16 inbound_checksum; /*TSO:__u16 seqno */
289 __u32 token; /*TSO: __u32 reserved */
290 __u16 length;
291 __u8 vlan_prio;
292 __u8 ext_flags;
293 __u16 vlan_id;
294 __u16 frame_offset;
295 __u8 dest_addr[16];
296} __attribute__ ((packed));
297
298struct qeth_hdr_layer2 {
299 __u8 id;
300 __u8 flags[3];
301 __u8 port_no;
302 __u8 hdr_length;
303 __u16 pkt_length;
304 __u16 seq_no;
305 __u16 vlan_id;
306 __u32 reserved;
307 __u8 reserved2[16];
308} __attribute__ ((packed));
309
310struct qeth_hdr_osn {
311 __u8 id;
312 __u8 reserved;
313 __u16 seq_no;
314 __u16 reserved2;
315 __u16 control_flags;
316 __u16 pdu_length;
317 __u8 reserved3[18];
318 __u32 ccid;
319} __attribute__ ((packed));
320
321struct qeth_hdr {
322 union {
323 struct qeth_hdr_layer2 l2;
324 struct qeth_hdr_layer3 l3;
325 struct qeth_hdr_osn osn;
326 } hdr;
327} __attribute__ ((packed));
328
329/*TCP Segmentation Offload header*/
330struct qeth_hdr_ext_tso {
331 __u16 hdr_tot_len;
332 __u8 imb_hdr_no;
333 __u8 reserved;
334 __u8 hdr_type;
335 __u8 hdr_version;
336 __u16 hdr_len;
337 __u32 payload_len;
338 __u16 mss;
339 __u16 dg_hdr_len;
340 __u8 padding[16];
341} __attribute__ ((packed));
342
343struct qeth_hdr_tso {
344 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
345 struct qeth_hdr_ext_tso ext;
346} __attribute__ ((packed));
347
348
349/* flags for qeth_hdr.flags */
350#define QETH_HDR_PASSTHRU 0x10
351#define QETH_HDR_IPV6 0x80
352#define QETH_HDR_CAST_MASK 0x07
353enum qeth_cast_flags {
354 QETH_CAST_UNICAST = 0x06,
355 QETH_CAST_MULTICAST = 0x04,
356 QETH_CAST_BROADCAST = 0x05,
357 QETH_CAST_ANYCAST = 0x07,
358 QETH_CAST_NOCAST = 0x00,
359};
360
361enum qeth_layer2_frame_flags {
362 QETH_LAYER2_FLAG_MULTICAST = 0x01,
363 QETH_LAYER2_FLAG_BROADCAST = 0x02,
364 QETH_LAYER2_FLAG_UNICAST = 0x04,
365 QETH_LAYER2_FLAG_VLAN = 0x10,
366};
367
368enum qeth_header_ids {
369 QETH_HEADER_TYPE_LAYER3 = 0x01,
370 QETH_HEADER_TYPE_LAYER2 = 0x02,
371 QETH_HEADER_TYPE_TSO = 0x03,
372 QETH_HEADER_TYPE_OSN = 0x04,
373};
374/* flags for qeth_hdr.ext_flags */
375#define QETH_HDR_EXT_VLAN_FRAME 0x01
376#define QETH_HDR_EXT_TOKEN_ID 0x02
377#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
378#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
379#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
380#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
f6b85b6c 381#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
4a71df50
FB		 382
383static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
384{
3ec90878 385 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
4a71df50
FB		 386}
387
388enum qeth_qdio_buffer_states {
389 /*
390 * inbound: read out by driver; owned by hardware in order to be filled
391 * outbound: owned by driver in order to be filled
392 */
393 QETH_QDIO_BUF_EMPTY,
394 /*
395 * inbound: filled by hardware; owned by driver in order to be read out
396 * outbound: filled by driver; owned by hardware in order to be sent
397 */
398 QETH_QDIO_BUF_PRIMED,
b3332930
FB		 399 /*
400 * inbound: not applicable
401 * outbound: identified to be pending in TPQ
402 */
403 QETH_QDIO_BUF_PENDING,
404 /*
405 * inbound: not applicable
406 * outbound: found in completion queue
407 */
408 QETH_QDIO_BUF_IN_CQ,
0da9581d
EL		 409 /*
410 * inbound: not applicable
411 * outbound: handled via transfer pending / completion queue
412 */
413 QETH_QDIO_BUF_HANDLED_DELAYED,
4a71df50
FB		 414};
415
416enum qeth_qdio_info_states {
417 QETH_QDIO_UNINITIALIZED,
418 QETH_QDIO_ALLOCATED,
419 QETH_QDIO_ESTABLISHED,
420 QETH_QDIO_CLEANING
421};
422
423struct qeth_buffer_pool_entry {
424 struct list_head list;
425 struct list_head init_list;
426 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
427};
428
429struct qeth_qdio_buffer_pool {
430 struct list_head entry_list;
431 int buf_count;
432};
433
434struct qeth_qdio_buffer {
435 struct qdio_buffer *buffer;
436 /* the buffer pool entry currently associated to this buffer */
437 struct qeth_buffer_pool_entry *pool_entry;
b3332930 438 struct sk_buff *rx_skb;
4a71df50
FB		 439};
440
441struct qeth_qdio_q {
6d284bde 442 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
4a71df50
FB		 443 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
444 int next_buf_to_init;
6d284bde 445};
4a71df50 446
4a71df50
FB		 447struct qeth_qdio_out_buffer {
448 struct qdio_buffer *buffer;
449 atomic_t state;
450 int next_element_to_fill;
451 struct sk_buff_head skb_list;
683d718a 452 int is_header[16];
0da9581d
EL		 453
454 struct qaob *aob;
455 struct qeth_qdio_out_q *q;
456 struct qeth_qdio_out_buffer *next_pending;
4a71df50
FB		 457};
458
459struct qeth_card;
460
461enum qeth_out_q_states {
462 QETH_OUT_Q_UNLOCKED,
463 QETH_OUT_Q_LOCKED,
464 QETH_OUT_Q_LOCKED_FLUSH,
465};
466
467struct qeth_qdio_out_q {
d445a4e2 468 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
0da9581d
EL		 469 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
470 struct qdio_outbuf_state *bufstates; /* convenience pointer */
4a71df50
FB		 471 int queue_no;
472 struct qeth_card *card;
473 atomic_t state;
474 int do_pack;
475 /*
476 * index of buffer to be filled by driver; state EMPTY or PACKING
477 */
478 int next_buf_to_fill;
479 /*
480 * number of buffers that are currently filled (PRIMED)
481 * -> these buffers are hardware-owned
482 */
483 atomic_t used_buffers;
484 /* indicates whether PCI flag must be set (or if one is outstanding) */
485 atomic_t set_pci_flags_count;
d445a4e2 486};
4a71df50
FB		 487
488struct qeth_qdio_info {
489 atomic_t state;
490 /* input */
0da9581d 491 int no_in_queues;
4a71df50 492 struct qeth_qdio_q *in_q;
0da9581d 493 struct qeth_qdio_q *c_q;
4a71df50
FB		 494 struct qeth_qdio_buffer_pool in_buf_pool;
495 struct qeth_qdio_buffer_pool init_pool;
496 int in_buf_size;
497
498 /* output */
499 int no_out_queues;
500 struct qeth_qdio_out_q **out_qs;
0da9581d 501 struct qdio_outbuf_state *out_bufstates;
4a71df50
FB		 502
503 /* priority queueing */
504 int do_prio_queueing;
505 int default_out_queue;
506};
507
508enum qeth_send_errors {
509 QETH_SEND_ERROR_NONE,
510 QETH_SEND_ERROR_LINK_FAILURE,
511 QETH_SEND_ERROR_RETRY,
512 QETH_SEND_ERROR_KICK_IT,
513};
514
515#define QETH_ETH_MAC_V4 0x0100 /* like v4 */
516#define QETH_ETH_MAC_V6 0x3333 /* like v6 */
517/* tr mc mac is longer, but that will be enough to detect mc frames */
518#define QETH_TR_MAC_NC 0xc000 /* non-canonical */
519#define QETH_TR_MAC_C 0x0300 /* canonical */
520
521#define DEFAULT_ADD_HHLEN 0
522#define MAX_ADD_HHLEN 1024
523
524/**
525 * buffer stuff for read channel
526 */
527#define QETH_CMD_BUFFER_NO 8
528
529/**
530 * channel state machine
531 */
532enum qeth_channel_states {
533 CH_STATE_UP,
534 CH_STATE_DOWN,
535 CH_STATE_ACTIVATING,
536 CH_STATE_HALTED,
537 CH_STATE_STOPPED,
538 CH_STATE_RCD,
539 CH_STATE_RCD_DONE,
540};
541/**
542 * card state machine
543 */
544enum qeth_card_states {
545 CARD_STATE_DOWN,
546 CARD_STATE_HARDSETUP,
547 CARD_STATE_SOFTSETUP,
548 CARD_STATE_UP,
549 CARD_STATE_RECOVER,
550};
551
552/**
553 * Protocol versions
554 */
555enum qeth_prot_versions {
556 QETH_PROT_IPV4 = 0x0004,
557 QETH_PROT_IPV6 = 0x0006,
558};
559
560enum qeth_ip_types {
561 QETH_IP_TYPE_NORMAL,
562 QETH_IP_TYPE_VIPA,
563 QETH_IP_TYPE_RXIP,
564 QETH_IP_TYPE_DEL_ALL_MC,
565};
566
567enum qeth_cmd_buffer_state {
568 BUF_STATE_FREE,
569 BUF_STATE_LOCKED,
570 BUF_STATE_PROCESSED,
571};
572
0da9581d
EL		 573enum qeth_cq {
574 QETH_CQ_DISABLED = 0,
575 QETH_CQ_ENABLED = 1,
576 QETH_CQ_NOTAVAILABLE = 2,
577};
578
4a71df50
FB		 579struct qeth_ipato {
580 int enabled;
581 int invert4;
582 int invert6;
583 struct list_head entries;
584};
585
586struct qeth_channel;
587
588struct qeth_cmd_buffer {
589 enum qeth_cmd_buffer_state state;
590 struct qeth_channel *channel;
591 unsigned char *data;
592 int rc;
593 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
594};
595
596/**
597 * definition of a qeth channel, used for read and write
598 */
599struct qeth_channel {
600 enum qeth_channel_states state;
601 struct ccw1 ccw;
602 spinlock_t iob_lock;
603 wait_queue_head_t wait_q;
604 struct tasklet_struct irq_tasklet;
605 struct ccw_device *ccwdev;
606/*command buffer for control data*/
607 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
608 atomic_t irq_pending;
609 int io_buf_no;
610 int buf_no;
611};
612
613/**
614 * OSA card related definitions
615 */
616struct qeth_token {
617 __u32 issuer_rm_w;
618 __u32 issuer_rm_r;
619 __u32 cm_filter_w;
620 __u32 cm_filter_r;
621 __u32 cm_connection_w;
622 __u32 cm_connection_r;
623 __u32 ulp_filter_w;
624 __u32 ulp_filter_r;
625 __u32 ulp_connection_w;
626 __u32 ulp_connection_r;
627};
628
629struct qeth_seqno {
630 __u32 trans_hdr;
631 __u32 pdu_hdr;
632 __u32 pdu_hdr_ack;
633 __u16 ipa;
634 __u32 pkt_seqno;
635};
636
637struct qeth_reply {
638 struct list_head list;
639 wait_queue_head_t wait_q;
640 int (*callback)(struct qeth_card *, struct qeth_reply *,
641 unsigned long);
642 u32 seqno;
643 unsigned long offset;
644 atomic_t received;
645 int rc;
646 void *param;
647 struct qeth_card *card;
648 atomic_t refcnt;
649};
650
651
652struct qeth_card_blkt {
653 int time_total;
654 int inter_packet;
655 int inter_packet_jumbo;
656};
657
658#define QETH_BROADCAST_WITH_ECHO 0x01
659#define QETH_BROADCAST_WITHOUT_ECHO 0x02
660#define QETH_LAYER2_MAC_READ 0x01
661#define QETH_LAYER2_MAC_REGISTERED 0x02
662struct qeth_card_info {
663 unsigned short unit_addr2;
664 unsigned short cula;
665 unsigned short chpid;
666 __u16 func_level;
667 char mcl_level[QETH_MCL_LENGTH + 1];
668 int guestlan;
669 int mac_bits;
670 int portname_required;
671 int portno;
672 char portname[9];
673 enum qeth_card_types type;
674 enum qeth_link_types link_type;
675 int is_multicast_different;
676 int initial_mtu;
677 int max_mtu;
678 int broadcast_capable;
679 int unique_id;
680 struct qeth_card_blkt blkt;
681 __u32 csum_mask;
f6b85b6c 682 __u32 tx_csum_mask;
4a71df50 683 enum qeth_ipa_promisc_modes promisc_mode;
1da74b1c
FB		 684 __u32 diagass_support;
685 __u32 hwtrap;
4a71df50
FB		 686};
687
688struct qeth_card_options {
689 struct qeth_routing_info route4;
690 struct qeth_ipa_info ipa4;
691 struct qeth_ipa_info adp; /*Adapter parameters*/
692 struct qeth_routing_info route6;
693 struct qeth_ipa_info ipa6;
b4d72c08 694 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
4a71df50
FB		 695 int fake_broadcast;
696 int add_hhlen;
4a71df50 697 int layer2;
4a71df50
FB		 698 int performance_stats;
699 int rx_sg_cb;
d64ecc22 700 enum qeth_ipa_isolation_modes isolation;
0f54761d 701 enum qeth_ipa_isolation_modes prev_isolation;
76b11f8e 702 int sniffer;
0da9581d 703 enum qeth_cq cq;
b3332930 704 char hsuid[9];
4a71df50
FB		 705};
706
707/*
708 * thread bits for qeth_card thread masks
709 */
710enum qeth_threads {
711 QETH_RECOVER_THREAD = 1,
712};
713
714struct qeth_osn_info {
715 int (*assist_cb)(struct net_device *dev, void *data);
716 int (*data_cb)(struct sk_buff *skb);
717};
718
719enum qeth_discipline_id {
720 QETH_DISCIPLINE_LAYER3 = 0,
721 QETH_DISCIPLINE_LAYER2 = 1,
722};
723
724struct qeth_discipline {
a1c3ed4c 725 void (*start_poll)(struct ccw_device *, int, unsigned long);
4a71df50
FB		 726 qdio_handler_t *input_handler;
727 qdio_handler_t *output_handler;
728 int (*recover)(void *ptr);
c041f2d4
SO		 729 int (*setup) (struct ccwgroup_device *);
730 void (*remove) (struct ccwgroup_device *);
731 int (*set_online) (struct ccwgroup_device *);
732 int (*set_offline) (struct ccwgroup_device *);
733 void (*shutdown)(struct ccwgroup_device *);
734 int (*prepare) (struct ccwgroup_device *);
735 void (*complete) (struct ccwgroup_device *);
736 int (*freeze)(struct ccwgroup_device *);
737 int (*thaw) (struct ccwgroup_device *);
738 int (*restore)(struct ccwgroup_device *);
c044dc21
EC		 739 int (*control_event_handler)(struct qeth_card *card,
740 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 741};
742
743struct qeth_vlan_vid {
744 struct list_head list;
745 unsigned short vid;
746};
747
748struct qeth_mc_mac {
749 struct list_head list;
750 __u8 mc_addr[MAX_ADDR_LEN];
751 unsigned char mc_addrlen;
7db2266a 752 int is_vmac;
4a71df50
FB		 753};
754
a1c3ed4c
FB		 755struct qeth_rx {
756 int b_count;
757 int b_index;
758 struct qdio_buffer_element *b_element;
759 int e_offset;
760 int qdio_err;
761};
762
02d5cb5b
EC		 763struct carrier_info {
764 __u8 card_type;
765 __u16 port_mode;
766 __u32 port_speed;
767};
768
45cbb2e4
SR		 769struct qeth_switch_info {
770 __u32 capabilities;
771 __u32 settings;
772};
773
6541aa52 774#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
a1c3ed4c 775
4a71df50
FB		 776struct qeth_card {
777 struct list_head list;
778 enum qeth_card_states state;
779 int lan_online;
780 spinlock_t lock;
781 struct ccwgroup_device *gdev;
782 struct qeth_channel read;
783 struct qeth_channel write;
784 struct qeth_channel data;
785
786 struct net_device *dev;
787 struct net_device_stats stats;
788
789 struct qeth_card_info info;
790 struct qeth_token token;
791 struct qeth_seqno seqno;
792 struct qeth_card_options options;
793
794 wait_queue_head_t wait_q;
795 spinlock_t vlanlock;
796 spinlock_t mclock;
7ff0bcf6 797 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
4a71df50
FB		 798 struct list_head vid_list;
799 struct list_head mc_list;
800 struct work_struct kernel_thread_starter;
801 spinlock_t thread_mask_lock;
802 unsigned long thread_start_mask;
803 unsigned long thread_allowed_mask;
804 unsigned long thread_running_mask;
65d8013c 805 struct task_struct *recovery_task;
4a71df50
FB		 806 spinlock_t ip_lock;
807 struct list_head ip_list;
808 struct list_head *ip_tbd_list;
809 struct qeth_ipato ipato;
810 struct list_head cmd_waiter_list;
811 /* QDIO buffer handling */
812 struct qeth_qdio_info qdio;
813 struct qeth_perf_stats perf_stats;
908abbb5 814 int read_or_write_problem;
4a71df50 815 struct qeth_osn_info osn_info;
c041f2d4 816 struct qeth_discipline *discipline;
4a71df50 817 atomic_t force_alloc_skb;
6bcac508 818 struct service_level qeth_service_level;
76b11f8e 819 struct qdio_ssqd_desc ssqd;
af039068 820 debug_info_t *debug;
c4949f07 821 struct mutex conf_mutex;
9dc48ccc 822 struct mutex discipline_mutex;
a1c3ed4c
FB		 823 struct napi_struct napi;
824 struct qeth_rx rx;
b3332930
FB		 825 struct delayed_work buffer_reclaim_work;
826 int reclaim_index;
0f54761d 827 struct work_struct close_dev_work;
4a71df50
FB		 828};
829
830struct qeth_card_list_struct {
831 struct list_head list;
832 rwlock_t rwlock;
833};
834
1da74b1c
FB		 835struct qeth_trap_id {
836 __u16 lparnr;
837 char vmname[8];
838 __u8 chpid;
839 __u8 ssid;
840 __u16 devno;
841} __packed;
842
4a71df50
FB		 843/*some helper functions*/
844#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
845
846static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
847{
848 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
849 dev_get_drvdata(&cdev->dev))->dev);
850 return card;
851}
852
853static inline int qeth_get_micros(void)
854{
1aae0560 855 return (int) (get_tod_clock() >> 12);
4a71df50
FB		 856}
857
4a71df50
FB		 858static inline int qeth_get_ip_version(struct sk_buff *skb)
859{
a9baf10a
SR		 860 __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
861
862 if (*p == ETH_P_8021Q)
863 p += 2;
864 switch (*p) {
4a71df50
FB		 865 case ETH_P_IPV6:
866 return 6;
867 case ETH_P_IP:
868 return 4;
869 default:
870 return 0;
871 }
872}
873
f90b744e
FB		 874static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
875 struct qeth_buffer_pool_entry *entry)
876{
877 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
878}
879
1da74b1c
FB		 880static inline int qeth_is_diagass_supported(struct qeth_card *card,
881 enum qeth_diags_cmds cmd)
882{
883 return card->info.diagass_support & (__u32)cmd;
884}
885
c041f2d4
SO		 886extern struct qeth_discipline qeth_l2_discipline;
887extern struct qeth_discipline qeth_l3_discipline;
b7169c51
SO		 888extern const struct attribute_group *qeth_generic_attr_groups[];
889extern const struct attribute_group *qeth_osn_attr_groups[];
b4d72c08 890extern struct workqueue_struct *qeth_wq;
b7169c51 891
511c2445 892int qeth_card_hw_is_reachable(struct qeth_card *);
4a71df50
FB		 893const char *qeth_get_cardname_short(struct qeth_card *);
894int qeth_realloc_buffer_pool(struct qeth_card *, int);
895int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
896void qeth_core_free_discipline(struct qeth_card *);
b3332930 897void qeth_buffer_reclaim_work(struct work_struct *);
4a71df50
FB		 898
899/* exports for qeth discipline device drivers */
900extern struct qeth_card_list_struct qeth_core_card_list;
683d718a 901extern struct kmem_cache *qeth_core_header_cache;
d11ba0c4 902extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
4a71df50 903
65d8013c
SR		 904void qeth_set_recovery_task(struct qeth_card *);
905void qeth_clear_recovery_task(struct qeth_card *);
4a71df50
FB		 906void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
907int qeth_threads_running(struct qeth_card *, unsigned long);
908int qeth_wait_for_threads(struct qeth_card *, unsigned long);
909int qeth_do_run_thread(struct qeth_card *, unsigned long);
910void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
911void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
912int qeth_core_hardsetup_card(struct qeth_card *);
913void qeth_print_status_message(struct qeth_card *);
914int qeth_init_qdio_queues(struct qeth_card *);
915int qeth_send_startlan(struct qeth_card *);
916int qeth_send_stoplan(struct qeth_card *);
917int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
918 int (*reply_cb)
919 (struct qeth_card *, struct qeth_reply *, unsigned long),
920 void *);
921struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
922 enum qeth_ipa_cmds, enum qeth_prot_versions);
923int qeth_query_setadapterparms(struct qeth_card *);
76b11f8e
UB		 924int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
925 unsigned int, const char *);
4a71df50
FB		 926void qeth_queue_input_buffer(struct qeth_card *, int);
927struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
b3332930 928 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
4a71df50
FB		 929 struct qeth_hdr **);
930void qeth_schedule_recovery(struct qeth_card *);
a1c3ed4c
FB		 931void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
932void qeth_qdio_input_handler(struct ccw_device *,
933 unsigned int, unsigned int, int,
934 int, unsigned long);
4a71df50 935void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
779e6e1c 936 int, int, int, unsigned long);
4a71df50
FB		 937void qeth_clear_ipacmd_list(struct qeth_card *);
938int qeth_qdio_clear_card(struct qeth_card *, int);
939void qeth_clear_working_pool_list(struct qeth_card *);
940void qeth_clear_cmd_buffers(struct qeth_channel *);
941void qeth_clear_qdio_buffers(struct qeth_card *);
942void qeth_setadp_promisc_mode(struct qeth_card *);
943struct net_device_stats *qeth_get_stats(struct net_device *);
944int qeth_change_mtu(struct net_device *, int);
945int qeth_setadpparms_change_macaddr(struct qeth_card *);
946void qeth_tx_timeout(struct net_device *);
947void qeth_prepare_control_data(struct qeth_card *, int,
948 struct qeth_cmd_buffer *);
949void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
950void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
951struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
952int qeth_mdio_read(struct net_device *, int, int);
953int qeth_snmp_command(struct qeth_card *, char __user *);
c3ab96f3 954int qeth_query_oat_command(struct qeth_card *, char __user *);
45cbb2e4
SR		 955int qeth_query_switch_attributes(struct qeth_card *card,
956 struct qeth_switch_info *sw_info);
02d5cb5b
EC		 957int qeth_query_card_info(struct qeth_card *card,
958 struct carrier_info *carrier_info);
4a71df50
FB		 959int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
960 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
961 void *reply_param);
b4d72c08
EC		 962int qeth_bridgeport_query_ports(struct qeth_card *card,
963 enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
964int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
9f48b9db 965int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
4a71df50 966int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
065cc782 967int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int);
271648b4 968int qeth_get_elements_for_frags(struct sk_buff *);
4a71df50 969int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
64ef8957 970 struct sk_buff *, struct qeth_hdr *, int, int, int);
4a71df50 971int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
64ef8957 972 struct sk_buff *, struct qeth_hdr *, int);
df8b4ec8 973int qeth_core_get_sset_count(struct net_device *, int);
4a71df50
FB		 974void qeth_core_get_ethtool_stats(struct net_device *,
975 struct ethtool_stats *, u64 *);
976void qeth_core_get_strings(struct net_device *, u32, u8 *);
977void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
8e96c51c 978void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
3f9975aa 979int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
0f54761d 980int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
d4ae1f5e 981int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
0da9581d 982int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1da74b1c
FB		 983int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
984int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
395672e0 985void qeth_trace_features(struct qeth_card *);
0f54761d 986void qeth_close_dev(struct qeth_card *);
4a71df50
FB		 987
988/* exports for OSN */
989int qeth_osn_assist(struct net_device *, void *, int);
990int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
991 int (*assist_cb)(struct net_device *, void *),
992 int (*data_cb)(struct sk_buff *));
993void qeth_osn_deregister(struct net_device *);
994
995#endif /* __QETH_CORE_H__ */
Linux 6.x block layer and io_uring tree(s)