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Merge tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
[linux-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 382
4a71df50
FB		 383enum qeth_qdio_buffer_states {
384 /*
385 * inbound: read out by driver; owned by hardware in order to be filled
386 * outbound: owned by driver in order to be filled
387 */
388 QETH_QDIO_BUF_EMPTY,
389 /*
390 * inbound: filled by hardware; owned by driver in order to be read out
391 * outbound: filled by driver; owned by hardware in order to be sent
392 */
393 QETH_QDIO_BUF_PRIMED,
b3332930
FB		 394 /*
395 * inbound: not applicable
396 * outbound: identified to be pending in TPQ
397 */
398 QETH_QDIO_BUF_PENDING,
399 /*
400 * inbound: not applicable
401 * outbound: found in completion queue
402 */
403 QETH_QDIO_BUF_IN_CQ,
0da9581d
EL		 404 /*
405 * inbound: not applicable
406 * outbound: handled via transfer pending / completion queue
407 */
408 QETH_QDIO_BUF_HANDLED_DELAYED,
4a71df50
FB		 409};
410
411enum qeth_qdio_info_states {
412 QETH_QDIO_UNINITIALIZED,
413 QETH_QDIO_ALLOCATED,
414 QETH_QDIO_ESTABLISHED,
415 QETH_QDIO_CLEANING
416};
417
418struct qeth_buffer_pool_entry {
419 struct list_head list;
420 struct list_head init_list;
421 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
422};
423
424struct qeth_qdio_buffer_pool {
425 struct list_head entry_list;
426 int buf_count;
427};
428
429struct qeth_qdio_buffer {
430 struct qdio_buffer *buffer;
431 /* the buffer pool entry currently associated to this buffer */
432 struct qeth_buffer_pool_entry *pool_entry;
b3332930 433 struct sk_buff *rx_skb;
4a71df50
FB		 434};
435
436struct qeth_qdio_q {
6d284bde 437 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
4a71df50
FB		 438 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
439 int next_buf_to_init;
6d284bde 440};
4a71df50 441
4a71df50
FB		 442struct qeth_qdio_out_buffer {
443 struct qdio_buffer *buffer;
444 atomic_t state;
445 int next_element_to_fill;
446 struct sk_buff_head skb_list;
683d718a 447 int is_header[16];
0da9581d
EL		 448
449 struct qaob *aob;
450 struct qeth_qdio_out_q *q;
451 struct qeth_qdio_out_buffer *next_pending;
4a71df50
FB		 452};
453
454struct qeth_card;
455
456enum qeth_out_q_states {
457 QETH_OUT_Q_UNLOCKED,
458 QETH_OUT_Q_LOCKED,
459 QETH_OUT_Q_LOCKED_FLUSH,
460};
461
462struct qeth_qdio_out_q {
d445a4e2 463 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
0da9581d
EL		 464 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
465 struct qdio_outbuf_state *bufstates; /* convenience pointer */
4a71df50
FB		 466 int queue_no;
467 struct qeth_card *card;
468 atomic_t state;
469 int do_pack;
470 /*
471 * index of buffer to be filled by driver; state EMPTY or PACKING
472 */
473 int next_buf_to_fill;
474 /*
475 * number of buffers that are currently filled (PRIMED)
476 * -> these buffers are hardware-owned
477 */
478 atomic_t used_buffers;
479 /* indicates whether PCI flag must be set (or if one is outstanding) */
480 atomic_t set_pci_flags_count;
d445a4e2 481};
4a71df50
FB		 482
483struct qeth_qdio_info {
484 atomic_t state;
485 /* input */
0da9581d 486 int no_in_queues;
4a71df50 487 struct qeth_qdio_q *in_q;
0da9581d 488 struct qeth_qdio_q *c_q;
4a71df50
FB		 489 struct qeth_qdio_buffer_pool in_buf_pool;
490 struct qeth_qdio_buffer_pool init_pool;
491 int in_buf_size;
492
493 /* output */
494 int no_out_queues;
495 struct qeth_qdio_out_q **out_qs;
0da9581d 496 struct qdio_outbuf_state *out_bufstates;
4a71df50
FB		 497
498 /* priority queueing */
499 int do_prio_queueing;
500 int default_out_queue;
501};
502
503enum qeth_send_errors {
504 QETH_SEND_ERROR_NONE,
505 QETH_SEND_ERROR_LINK_FAILURE,
506 QETH_SEND_ERROR_RETRY,
507 QETH_SEND_ERROR_KICK_IT,
508};
509
510#define QETH_ETH_MAC_V4 0x0100 /* like v4 */
511#define QETH_ETH_MAC_V6 0x3333 /* like v6 */
512/* tr mc mac is longer, but that will be enough to detect mc frames */
513#define QETH_TR_MAC_NC 0xc000 /* non-canonical */
514#define QETH_TR_MAC_C 0x0300 /* canonical */
515
516#define DEFAULT_ADD_HHLEN 0
517#define MAX_ADD_HHLEN 1024
518
519/**
520 * buffer stuff for read channel
521 */
522#define QETH_CMD_BUFFER_NO 8
523
524/**
525 * channel state machine
526 */
527enum qeth_channel_states {
528 CH_STATE_UP,
529 CH_STATE_DOWN,
530 CH_STATE_ACTIVATING,
531 CH_STATE_HALTED,
532 CH_STATE_STOPPED,
533 CH_STATE_RCD,
534 CH_STATE_RCD_DONE,
535};
536/**
537 * card state machine
538 */
539enum qeth_card_states {
540 CARD_STATE_DOWN,
541 CARD_STATE_HARDSETUP,
542 CARD_STATE_SOFTSETUP,
543 CARD_STATE_UP,
544 CARD_STATE_RECOVER,
545};
546
547/**
548 * Protocol versions
549 */
550enum qeth_prot_versions {
551 QETH_PROT_IPV4 = 0x0004,
552 QETH_PROT_IPV6 = 0x0006,
553};
554
555enum qeth_ip_types {
556 QETH_IP_TYPE_NORMAL,
557 QETH_IP_TYPE_VIPA,
558 QETH_IP_TYPE_RXIP,
559 QETH_IP_TYPE_DEL_ALL_MC,
560};
561
562enum qeth_cmd_buffer_state {
563 BUF_STATE_FREE,
564 BUF_STATE_LOCKED,
565 BUF_STATE_PROCESSED,
566};
567
0da9581d
EL		 568enum qeth_cq {
569 QETH_CQ_DISABLED = 0,
570 QETH_CQ_ENABLED = 1,
571 QETH_CQ_NOTAVAILABLE = 2,
572};
573
4a71df50
FB		 574struct qeth_ipato {
575 int enabled;
576 int invert4;
577 int invert6;
578 struct list_head entries;
579};
580
581struct qeth_channel;
582
583struct qeth_cmd_buffer {
584 enum qeth_cmd_buffer_state state;
585 struct qeth_channel *channel;
586 unsigned char *data;
587 int rc;
588 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
589};
590
591/**
592 * definition of a qeth channel, used for read and write
593 */
594struct qeth_channel {
595 enum qeth_channel_states state;
596 struct ccw1 ccw;
597 spinlock_t iob_lock;
598 wait_queue_head_t wait_q;
599 struct tasklet_struct irq_tasklet;
600 struct ccw_device *ccwdev;
601/*command buffer for control data*/
602 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
603 atomic_t irq_pending;
604 int io_buf_no;
605 int buf_no;
606};
607
608/**
609 * OSA card related definitions
610 */
611struct qeth_token {
612 __u32 issuer_rm_w;
613 __u32 issuer_rm_r;
614 __u32 cm_filter_w;
615 __u32 cm_filter_r;
616 __u32 cm_connection_w;
617 __u32 cm_connection_r;
618 __u32 ulp_filter_w;
619 __u32 ulp_filter_r;
620 __u32 ulp_connection_w;
621 __u32 ulp_connection_r;
622};
623
624struct qeth_seqno {
625 __u32 trans_hdr;
626 __u32 pdu_hdr;
627 __u32 pdu_hdr_ack;
628 __u16 ipa;
629 __u32 pkt_seqno;
630};
631
632struct qeth_reply {
633 struct list_head list;
634 wait_queue_head_t wait_q;
635 int (*callback)(struct qeth_card *, struct qeth_reply *,
636 unsigned long);
637 u32 seqno;
638 unsigned long offset;
639 atomic_t received;
640 int rc;
641 void *param;
642 struct qeth_card *card;
643 atomic_t refcnt;
644};
645
646
647struct qeth_card_blkt {
648 int time_total;
649 int inter_packet;
650 int inter_packet_jumbo;
651};
652
653#define QETH_BROADCAST_WITH_ECHO 0x01
654#define QETH_BROADCAST_WITHOUT_ECHO 0x02
655#define QETH_LAYER2_MAC_READ 0x01
656#define QETH_LAYER2_MAC_REGISTERED 0x02
657struct qeth_card_info {
658 unsigned short unit_addr2;
659 unsigned short cula;
660 unsigned short chpid;
661 __u16 func_level;
662 char mcl_level[QETH_MCL_LENGTH + 1];
663 int guestlan;
664 int mac_bits;
665 int portname_required;
666 int portno;
667 char portname[9];
668 enum qeth_card_types type;
669 enum qeth_link_types link_type;
670 int is_multicast_different;
671 int initial_mtu;
672 int max_mtu;
673 int broadcast_capable;
674 int unique_id;
675 struct qeth_card_blkt blkt;
676 __u32 csum_mask;
f6b85b6c 677 __u32 tx_csum_mask;
4a71df50 678 enum qeth_ipa_promisc_modes promisc_mode;
1da74b1c
FB		 679 __u32 diagass_support;
680 __u32 hwtrap;
4a71df50
FB		 681};
682
683struct qeth_card_options {
684 struct qeth_routing_info route4;
685 struct qeth_ipa_info ipa4;
686 struct qeth_ipa_info adp; /*Adapter parameters*/
687 struct qeth_routing_info route6;
688 struct qeth_ipa_info ipa6;
b4d72c08 689 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
4a71df50
FB		 690 int fake_broadcast;
691 int add_hhlen;
4a71df50 692 int layer2;
4a71df50
FB		 693 int performance_stats;
694 int rx_sg_cb;
d64ecc22 695 enum qeth_ipa_isolation_modes isolation;
0f54761d 696 enum qeth_ipa_isolation_modes prev_isolation;
76b11f8e 697 int sniffer;
0da9581d 698 enum qeth_cq cq;
b3332930 699 char hsuid[9];
4a71df50
FB		 700};
701
702/*
703 * thread bits for qeth_card thread masks
704 */
705enum qeth_threads {
706 QETH_RECOVER_THREAD = 1,
707};
708
709struct qeth_osn_info {
710 int (*assist_cb)(struct net_device *dev, void *data);
711 int (*data_cb)(struct sk_buff *skb);
712};
713
714enum qeth_discipline_id {
715 QETH_DISCIPLINE_LAYER3 = 0,
716 QETH_DISCIPLINE_LAYER2 = 1,
717};
718
719struct qeth_discipline {
a1c3ed4c 720 void (*start_poll)(struct ccw_device *, int, unsigned long);
4a71df50
FB		 721 qdio_handler_t *input_handler;
722 qdio_handler_t *output_handler;
723 int (*recover)(void *ptr);
c041f2d4
SO		 724 int (*setup) (struct ccwgroup_device *);
725 void (*remove) (struct ccwgroup_device *);
726 int (*set_online) (struct ccwgroup_device *);
727 int (*set_offline) (struct ccwgroup_device *);
728 void (*shutdown)(struct ccwgroup_device *);
729 int (*prepare) (struct ccwgroup_device *);
730 void (*complete) (struct ccwgroup_device *);
731 int (*freeze)(struct ccwgroup_device *);
732 int (*thaw) (struct ccwgroup_device *);
733 int (*restore)(struct ccwgroup_device *);
c044dc21
EC		 734 int (*control_event_handler)(struct qeth_card *card,
735 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 736};
737
738struct qeth_vlan_vid {
739 struct list_head list;
740 unsigned short vid;
741};
742
743struct qeth_mc_mac {
744 struct list_head list;
745 __u8 mc_addr[MAX_ADDR_LEN];
746 unsigned char mc_addrlen;
7db2266a 747 int is_vmac;
4a71df50
FB		 748};
749
a1c3ed4c
FB		 750struct qeth_rx {
751 int b_count;
752 int b_index;
753 struct qdio_buffer_element *b_element;
754 int e_offset;
755 int qdio_err;
756};
757
02d5cb5b
EC		 758struct carrier_info {
759 __u8 card_type;
760 __u16 port_mode;
761 __u32 port_speed;
762};
763
45cbb2e4
SR		 764struct qeth_switch_info {
765 __u32 capabilities;
766 __u32 settings;
767};
768
6541aa52 769#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
a1c3ed4c 770
4a71df50
FB		 771struct qeth_card {
772 struct list_head list;
773 enum qeth_card_states state;
774 int lan_online;
775 spinlock_t lock;
776 struct ccwgroup_device *gdev;
777 struct qeth_channel read;
778 struct qeth_channel write;
779 struct qeth_channel data;
780
781 struct net_device *dev;
782 struct net_device_stats stats;
783
784 struct qeth_card_info info;
785 struct qeth_token token;
786 struct qeth_seqno seqno;
787 struct qeth_card_options options;
788
789 wait_queue_head_t wait_q;
790 spinlock_t vlanlock;
791 spinlock_t mclock;
7ff0bcf6 792 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
4a71df50
FB		 793 struct list_head vid_list;
794 struct list_head mc_list;
795 struct work_struct kernel_thread_starter;
796 spinlock_t thread_mask_lock;
797 unsigned long thread_start_mask;
798 unsigned long thread_allowed_mask;
799 unsigned long thread_running_mask;
65d8013c 800 struct task_struct *recovery_task;
4a71df50
FB		 801 spinlock_t ip_lock;
802 struct list_head ip_list;
803 struct list_head *ip_tbd_list;
804 struct qeth_ipato ipato;
805 struct list_head cmd_waiter_list;
806 /* QDIO buffer handling */
807 struct qeth_qdio_info qdio;
808 struct qeth_perf_stats perf_stats;
908abbb5 809 int read_or_write_problem;
4a71df50 810 struct qeth_osn_info osn_info;
c041f2d4 811 struct qeth_discipline *discipline;
4a71df50 812 atomic_t force_alloc_skb;
6bcac508 813 struct service_level qeth_service_level;
76b11f8e 814 struct qdio_ssqd_desc ssqd;
af039068 815 debug_info_t *debug;
c4949f07 816 struct mutex conf_mutex;
9dc48ccc 817 struct mutex discipline_mutex;
a1c3ed4c
FB		 818 struct napi_struct napi;
819 struct qeth_rx rx;
b3332930
FB		 820 struct delayed_work buffer_reclaim_work;
821 int reclaim_index;
0f54761d 822 struct work_struct close_dev_work;
4a71df50
FB		 823};
824
825struct qeth_card_list_struct {
826 struct list_head list;
827 rwlock_t rwlock;
828};
829
1da74b1c
FB		 830struct qeth_trap_id {
831 __u16 lparnr;
832 char vmname[8];
833 __u8 chpid;
834 __u8 ssid;
835 __u16 devno;
836} __packed;
837
4a71df50
FB		 838/*some helper functions*/
839#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
840
4a71df50
FB		 841static inline int qeth_get_micros(void)
842{
1aae0560 843 return (int) (get_tod_clock() >> 12);
4a71df50
FB		 844}
845
4a71df50
FB		 846static inline int qeth_get_ip_version(struct sk_buff *skb)
847{
a9baf10a
SR		 848 __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
849
850 if (*p == ETH_P_8021Q)
851 p += 2;
852 switch (*p) {
4a71df50
FB		 853 case ETH_P_IPV6:
854 return 6;
855 case ETH_P_IP:
856 return 4;
857 default:
858 return 0;
859 }
860}
861
f90b744e
FB		 862static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
863 struct qeth_buffer_pool_entry *entry)
864{
865 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
866}
867
1da74b1c
FB		 868static inline int qeth_is_diagass_supported(struct qeth_card *card,
869 enum qeth_diags_cmds cmd)
870{
871 return card->info.diagass_support & (__u32)cmd;
872}
873
c041f2d4
SO		 874extern struct qeth_discipline qeth_l2_discipline;
875extern struct qeth_discipline qeth_l3_discipline;
b7169c51
SO		 876extern const struct attribute_group *qeth_generic_attr_groups[];
877extern const struct attribute_group *qeth_osn_attr_groups[];
b4d72c08 878extern struct workqueue_struct *qeth_wq;
b7169c51 879
511c2445 880int qeth_card_hw_is_reachable(struct qeth_card *);
4a71df50
FB		 881const char *qeth_get_cardname_short(struct qeth_card *);
882int qeth_realloc_buffer_pool(struct qeth_card *, int);
883int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
884void qeth_core_free_discipline(struct qeth_card *);
4a71df50
FB		 885
886/* exports for qeth discipline device drivers */
887extern struct qeth_card_list_struct qeth_core_card_list;
683d718a 888extern struct kmem_cache *qeth_core_header_cache;
d11ba0c4 889extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
4a71df50 890
65d8013c
SR		 891void qeth_set_recovery_task(struct qeth_card *);
892void qeth_clear_recovery_task(struct qeth_card *);
4a71df50
FB		 893void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
894int qeth_threads_running(struct qeth_card *, unsigned long);
895int qeth_wait_for_threads(struct qeth_card *, unsigned long);
896int qeth_do_run_thread(struct qeth_card *, unsigned long);
897void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
898void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
899int qeth_core_hardsetup_card(struct qeth_card *);
900void qeth_print_status_message(struct qeth_card *);
901int qeth_init_qdio_queues(struct qeth_card *);
902int qeth_send_startlan(struct qeth_card *);
4a71df50
FB		 903int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
904 int (*reply_cb)
905 (struct qeth_card *, struct qeth_reply *, unsigned long),
906 void *);
907struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
908 enum qeth_ipa_cmds, enum qeth_prot_versions);
909int qeth_query_setadapterparms(struct qeth_card *);
76b11f8e
UB		 910int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
911 unsigned int, const char *);
4a71df50
FB		 912void qeth_queue_input_buffer(struct qeth_card *, int);
913struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
b3332930 914 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
4a71df50
FB		 915 struct qeth_hdr **);
916void qeth_schedule_recovery(struct qeth_card *);
a1c3ed4c
FB		 917void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
918void qeth_qdio_input_handler(struct ccw_device *,
919 unsigned int, unsigned int, int,
920 int, unsigned long);
4a71df50 921void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
779e6e1c 922 int, int, int, unsigned long);
4a71df50
FB		 923void qeth_clear_ipacmd_list(struct qeth_card *);
924int qeth_qdio_clear_card(struct qeth_card *, int);
925void qeth_clear_working_pool_list(struct qeth_card *);
926void qeth_clear_cmd_buffers(struct qeth_channel *);
927void qeth_clear_qdio_buffers(struct qeth_card *);
928void qeth_setadp_promisc_mode(struct qeth_card *);
929struct net_device_stats *qeth_get_stats(struct net_device *);
930int qeth_change_mtu(struct net_device *, int);
931int qeth_setadpparms_change_macaddr(struct qeth_card *);
932void qeth_tx_timeout(struct net_device *);
933void qeth_prepare_control_data(struct qeth_card *, int,
934 struct qeth_cmd_buffer *);
935void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
936void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
937struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
938int qeth_mdio_read(struct net_device *, int, int);
939int qeth_snmp_command(struct qeth_card *, char __user *);
c3ab96f3 940int qeth_query_oat_command(struct qeth_card *, char __user *);
45cbb2e4
SR		 941int qeth_query_switch_attributes(struct qeth_card *card,
942 struct qeth_switch_info *sw_info);
4a71df50
FB		 943int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
944 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
945 void *reply_param);
b4d72c08
EC		 946int qeth_bridgeport_query_ports(struct qeth_card *card,
947 enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
948int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
9f48b9db 949int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
4a71df50 950int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
065cc782 951int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int);
271648b4 952int qeth_get_elements_for_frags(struct sk_buff *);
4a71df50 953int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
64ef8957 954 struct sk_buff *, struct qeth_hdr *, int, int, int);
4a71df50 955int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
64ef8957 956 struct sk_buff *, struct qeth_hdr *, int);
df8b4ec8 957int qeth_core_get_sset_count(struct net_device *, int);
4a71df50
FB		 958void qeth_core_get_ethtool_stats(struct net_device *,
959 struct ethtool_stats *, u64 *);
960void qeth_core_get_strings(struct net_device *, u32, u8 *);
961void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
8e96c51c 962void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
3f9975aa 963int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
0f54761d 964int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
d4ae1f5e 965int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
0da9581d 966int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1da74b1c
FB		 967int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
968int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
395672e0 969void qeth_trace_features(struct qeth_card *);
0f54761d 970void qeth_close_dev(struct qeth_card *);
4a71df50
FB		 971
972/* exports for OSN */
973int qeth_osn_assist(struct net_device *, void *, int);
974int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
975 int (*assist_cb)(struct net_device *, void *),
976 int (*data_cb)(struct sk_buff *));
977void qeth_osn_deregister(struct net_device *);
978
979#endif /* __QETH_CORE_H__ */
Linux 6.x block layer and io_uring tree(s)