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Merge tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
[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>
fe5c8028 21#include <linux/hashtable.h>
41aeed58 22#include <linux/ip.h>
4a71df50
FB		 23
24#include <net/ipv6.h>
25#include <net/if_inet6.h>
26#include <net/addrconf.h>
27
28#include <asm/debug.h>
29#include <asm/qdio.h>
30#include <asm/ccwdev.h>
31#include <asm/ccwgroup.h>
6bcac508 32#include <asm/sysinfo.h>
4a71df50
FB		 33
34#include "qeth_core_mpc.h"
35
36/**
37 * Debug Facility stuff
38 */
d11ba0c4
PT		 39enum qeth_dbf_names {
40 QETH_DBF_SETUP,
d11ba0c4 41 QETH_DBF_MSG,
d11ba0c4
PT		 42 QETH_DBF_CTRL,
43 QETH_DBF_INFOS /* must be last element */
44};
45
46struct qeth_dbf_info {
47 char name[DEBUG_MAX_NAME_LEN];
48 int pages;
49 int areas;
50 int len;
51 int level;
52 struct debug_view *view;
53 debug_info_t *id;
54};
55
56#define QETH_DBF_CTRL_LEN 256
4a71df50
FB		 57
58#define QETH_DBF_TEXT(name, level, text) \
d11ba0c4 59 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
4a71df50
FB		 60
61#define QETH_DBF_HEX(name, level, addr, len) \
d11ba0c4
PT		 62 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
63
64#define QETH_DBF_MESSAGE(level, text...) \
65 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
66
67#define QETH_DBF_TEXT_(name, level, text...) \
8e96c51c 68 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
4a71df50 69
af039068
CO		 70#define QETH_CARD_TEXT(card, level, text) \
71 debug_text_event(card->debug, level, text)
72
73#define QETH_CARD_HEX(card, level, addr, len) \
74 debug_event(card->debug, level, (void *)(addr), len)
75
76#define QETH_CARD_MESSAGE(card, text...) \
77 debug_sprintf_event(card->debug, level, text)
78
79#define QETH_CARD_TEXT_(card, level, text...) \
80 qeth_dbf_longtext(card->debug, level, text)
81
4a71df50
FB		 82#define SENSE_COMMAND_REJECT_BYTE 0
83#define SENSE_COMMAND_REJECT_FLAG 0x80
84#define SENSE_RESETTING_EVENT_BYTE 1
85#define SENSE_RESETTING_EVENT_FLAG 0x80
86
87/*
88 * Common IO related definitions
89 */
90#define CARD_RDEV(card) card->read.ccwdev
91#define CARD_WDEV(card) card->write.ccwdev
92#define CARD_DDEV(card) card->data.ccwdev
2a0217d5
KS		 93#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
94#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
95#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
96#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
97#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
4a71df50
FB		 98
99/**
100 * card stuff
101 */
102struct qeth_perf_stats {
103 unsigned int bufs_rec;
104 unsigned int bufs_sent;
105
106 unsigned int skbs_sent_pack;
107 unsigned int bufs_sent_pack;
108
109 unsigned int sc_dp_p;
110 unsigned int sc_p_dp;
0da9581d
EL		 111 /* qdio_cq_handler: number of times called, time spent in */
112 __u64 cq_start_time;
113 unsigned int cq_cnt;
114 unsigned int cq_time;
4a71df50
FB		 115 /* qdio_input_handler: number of times called, time spent in */
116 __u64 inbound_start_time;
117 unsigned int inbound_cnt;
118 unsigned int inbound_time;
119 /* qeth_send_packet: number of times called, time spent in */
120 __u64 outbound_start_time;
121 unsigned int outbound_cnt;
122 unsigned int outbound_time;
123 /* qdio_output_handler: number of times called, time spent in */
124 __u64 outbound_handler_start_time;
125 unsigned int outbound_handler_cnt;
126 unsigned int outbound_handler_time;
127 /* number of calls to and time spent in do_QDIO for inbound queue */
128 __u64 inbound_do_qdio_start_time;
129 unsigned int inbound_do_qdio_cnt;
130 unsigned int inbound_do_qdio_time;
131 /* number of calls to and time spent in do_QDIO for outbound queues */
132 __u64 outbound_do_qdio_start_time;
133 unsigned int outbound_do_qdio_cnt;
134 unsigned int outbound_do_qdio_time;
4a71df50
FB		 135 unsigned int large_send_bytes;
136 unsigned int large_send_cnt;
137 unsigned int sg_skbs_sent;
138 unsigned int sg_frags_sent;
139 /* initial values when measuring starts */
140 unsigned long initial_rx_packets;
141 unsigned long initial_tx_packets;
142 /* inbound scatter gather data */
143 unsigned int sg_skbs_rx;
144 unsigned int sg_frags_rx;
145 unsigned int sg_alloc_page_rx;
f61a0d05 146 unsigned int tx_csum;
c3b4a740 147 unsigned int tx_lin;
6059c905 148 unsigned int tx_linfail;
4a71df50
FB		 149};
150
151/* Routing stuff */
152struct qeth_routing_info {
153 enum qeth_routing_types type;
154};
155
156/* IPA stuff */
157struct qeth_ipa_info {
158 __u32 supported_funcs;
159 __u32 enabled_funcs;
160};
161
b4d72c08
EC		 162/* SETBRIDGEPORT stuff */
163enum qeth_sbp_roles {
164 QETH_SBP_ROLE_NONE = 0,
165 QETH_SBP_ROLE_PRIMARY = 1,
166 QETH_SBP_ROLE_SECONDARY = 2,
167};
168
169enum qeth_sbp_states {
170 QETH_SBP_STATE_INACTIVE = 0,
171 QETH_SBP_STATE_STANDBY = 1,
172 QETH_SBP_STATE_ACTIVE = 2,
173};
174
9f48b9db
EC		 175#define QETH_SBP_HOST_NOTIFICATION 1
176
b4d72c08
EC		 177struct qeth_sbp_info {
178 __u32 supported_funcs;
179 enum qeth_sbp_roles role;
9f48b9db 180 __u32 hostnotification:1;
0db587b0
EC		 181 __u32 reflect_promisc:1;
182 __u32 reflect_promisc_primary:1;
b4d72c08
EC		 183};
184
4a71df50
FB		 185static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
186 enum qeth_ipa_funcs func)
187{
188 return (ipa->supported_funcs & func);
189}
190
191static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
192 enum qeth_ipa_funcs func)
193{
194 return (ipa->supported_funcs & ipa->enabled_funcs & func);
195}
196
197#define qeth_adp_supported(c, f) \
198 qeth_is_ipa_supported(&c->options.adp, f)
199#define qeth_adp_enabled(c, f) \
200 qeth_is_ipa_enabled(&c->options.adp, f)
201#define qeth_is_supported(c, f) \
202 qeth_is_ipa_supported(&c->options.ipa4, f)
203#define qeth_is_enabled(c, f) \
204 qeth_is_ipa_enabled(&c->options.ipa4, f)
205#define qeth_is_supported6(c, f) \
206 qeth_is_ipa_supported(&c->options.ipa6, f)
207#define qeth_is_enabled6(c, f) \
208 qeth_is_ipa_enabled(&c->options.ipa6, f)
209#define qeth_is_ipafunc_supported(c, prot, f) \
210 ((prot == QETH_PROT_IPV6) ? \
211 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
212#define qeth_is_ipafunc_enabled(c, prot, f) \
213 ((prot == QETH_PROT_IPV6) ? \
214 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
215
5113fec0 216#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
6298263a 217#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
4a71df50
FB		 218
219#define QETH_MODELLIST_ARRAY \
5113fec0
UB		 220 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
221 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
222 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
223 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
224 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
225 {0, 0, 0, 0, 0, 0} }
226#define QETH_CU_TYPE_IND 0
227#define QETH_CU_MODEL_IND 1
228#define QETH_DEV_TYPE_IND 2
229#define QETH_DEV_MODEL_IND 3
230#define QETH_QUEUE_NO_IND 4
231#define QETH_MULTICAST_IND 5
4a71df50
FB		 232
233#define QETH_REAL_CARD 1
234#define QETH_VLAN_CARD 2
235#define QETH_BUFSIZE 4096
236
237/**
238 * some more defs
239 */
240#define QETH_TX_TIMEOUT 100 * HZ
241#define QETH_RCD_TIMEOUT 60 * HZ
b3332930 242#define QETH_RECLAIM_WORK_TIME HZ
4a71df50
FB		 243#define QETH_HEADER_SIZE 32
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
dcf4ae2d
FB		 255#define QETH_IN_BUF_COUNT_DEFAULT 64
256#define QETH_IN_BUF_COUNT_HSDEFAULT 128
4a71df50
FB		 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) \
0284a0fd 261 ((card)->qdio.in_buf_pool.buf_count / 2)
4a71df50
FB		 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
4a71df50
FB		 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
d66cb37e
SR		 276#define QETH_PRIO_Q_ING_SKB 3
277#define QETH_PRIO_Q_ING_VLAN 4
4a71df50
FB		 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#define QETH_IP_HEADER_SIZE 40
285
286/* large receive scatter gather copy break */
287#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
b3332930 288#define QETH_RX_PULL_LEN 256
4a71df50
FB		 289
290struct qeth_hdr_layer3 {
291 __u8 id;
292 __u8 flags;
293 __u16 inbound_checksum; /*TSO:__u16 seqno */
294 __u32 token; /*TSO: __u32 reserved */
295 __u16 length;
296 __u8 vlan_prio;
297 __u8 ext_flags;
298 __u16 vlan_id;
299 __u16 frame_offset;
300 __u8 dest_addr[16];
301} __attribute__ ((packed));
302
303struct qeth_hdr_layer2 {
304 __u8 id;
305 __u8 flags[3];
306 __u8 port_no;
307 __u8 hdr_length;
308 __u16 pkt_length;
309 __u16 seq_no;
310 __u16 vlan_id;
311 __u32 reserved;
312 __u8 reserved2[16];
313} __attribute__ ((packed));
314
315struct qeth_hdr_osn {
316 __u8 id;
317 __u8 reserved;
318 __u16 seq_no;
319 __u16 reserved2;
320 __u16 control_flags;
321 __u16 pdu_length;
322 __u8 reserved3[18];
323 __u32 ccid;
324} __attribute__ ((packed));
325
326struct qeth_hdr {
327 union {
328 struct qeth_hdr_layer2 l2;
329 struct qeth_hdr_layer3 l3;
330 struct qeth_hdr_osn osn;
331 } hdr;
332} __attribute__ ((packed));
333
334/*TCP Segmentation Offload header*/
335struct qeth_hdr_ext_tso {
336 __u16 hdr_tot_len;
337 __u8 imb_hdr_no;
338 __u8 reserved;
339 __u8 hdr_type;
340 __u8 hdr_version;
341 __u16 hdr_len;
342 __u32 payload_len;
343 __u16 mss;
344 __u16 dg_hdr_len;
345 __u8 padding[16];
346} __attribute__ ((packed));
347
348struct qeth_hdr_tso {
349 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
350 struct qeth_hdr_ext_tso ext;
351} __attribute__ ((packed));
352
353
354/* flags for qeth_hdr.flags */
355#define QETH_HDR_PASSTHRU 0x10
356#define QETH_HDR_IPV6 0x80
357#define QETH_HDR_CAST_MASK 0x07
358enum qeth_cast_flags {
359 QETH_CAST_UNICAST = 0x06,
360 QETH_CAST_MULTICAST = 0x04,
361 QETH_CAST_BROADCAST = 0x05,
362 QETH_CAST_ANYCAST = 0x07,
363 QETH_CAST_NOCAST = 0x00,
364};
365
366enum qeth_layer2_frame_flags {
367 QETH_LAYER2_FLAG_MULTICAST = 0x01,
368 QETH_LAYER2_FLAG_BROADCAST = 0x02,
369 QETH_LAYER2_FLAG_UNICAST = 0x04,
370 QETH_LAYER2_FLAG_VLAN = 0x10,
371};
372
373enum qeth_header_ids {
374 QETH_HEADER_TYPE_LAYER3 = 0x01,
375 QETH_HEADER_TYPE_LAYER2 = 0x02,
376 QETH_HEADER_TYPE_TSO = 0x03,
377 QETH_HEADER_TYPE_OSN = 0x04,
378};
379/* flags for qeth_hdr.ext_flags */
380#define QETH_HDR_EXT_VLAN_FRAME 0x01
381#define QETH_HDR_EXT_TOKEN_ID 0x02
382#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
383#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
384#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
385#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
f6b85b6c 386#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
4a71df50 387
4a71df50
FB		 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,
4a71df50
FB		 564};
565
566enum qeth_cmd_buffer_state {
567 BUF_STATE_FREE,
568 BUF_STATE_LOCKED,
569 BUF_STATE_PROCESSED,
570};
571
0da9581d
EL		 572enum qeth_cq {
573 QETH_CQ_DISABLED = 0,
574 QETH_CQ_ENABLED = 1,
575 QETH_CQ_NOTAVAILABLE = 2,
576};
577
4a71df50
FB		 578struct qeth_ipato {
579 int enabled;
580 int invert4;
581 int invert6;
582 struct list_head entries;
583};
584
585struct qeth_channel;
586
587struct qeth_cmd_buffer {
588 enum qeth_cmd_buffer_state state;
589 struct qeth_channel *channel;
590 unsigned char *data;
591 int rc;
592 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
593};
594
595/**
596 * definition of a qeth channel, used for read and write
597 */
598struct qeth_channel {
599 enum qeth_channel_states state;
600 struct ccw1 ccw;
601 spinlock_t iob_lock;
602 wait_queue_head_t wait_q;
4a71df50
FB		 603 struct ccw_device *ccwdev;
604/*command buffer for control data*/
605 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
606 atomic_t irq_pending;
607 int io_buf_no;
608 int buf_no;
609};
610
611/**
612 * OSA card related definitions
613 */
614struct qeth_token {
615 __u32 issuer_rm_w;
616 __u32 issuer_rm_r;
617 __u32 cm_filter_w;
618 __u32 cm_filter_r;
619 __u32 cm_connection_w;
620 __u32 cm_connection_r;
621 __u32 ulp_filter_w;
622 __u32 ulp_filter_r;
623 __u32 ulp_connection_w;
624 __u32 ulp_connection_r;
625};
626
627struct qeth_seqno {
628 __u32 trans_hdr;
629 __u32 pdu_hdr;
630 __u32 pdu_hdr_ack;
631 __u16 ipa;
632 __u32 pkt_seqno;
633};
634
635struct qeth_reply {
636 struct list_head list;
637 wait_queue_head_t wait_q;
638 int (*callback)(struct qeth_card *, struct qeth_reply *,
639 unsigned long);
640 u32 seqno;
641 unsigned long offset;
642 atomic_t received;
643 int rc;
644 void *param;
645 struct qeth_card *card;
646 atomic_t refcnt;
647};
648
649
650struct qeth_card_blkt {
651 int time_total;
652 int inter_packet;
653 int inter_packet_jumbo;
654};
655
656#define QETH_BROADCAST_WITH_ECHO 0x01
657#define QETH_BROADCAST_WITHOUT_ECHO 0x02
658#define QETH_LAYER2_MAC_READ 0x01
659#define QETH_LAYER2_MAC_REGISTERED 0x02
660struct qeth_card_info {
661 unsigned short unit_addr2;
662 unsigned short cula;
663 unsigned short chpid;
664 __u16 func_level;
665 char mcl_level[QETH_MCL_LENGTH + 1];
666 int guestlan;
667 int mac_bits;
4a71df50 668 int portno;
4a71df50
FB		 669 enum qeth_card_types type;
670 enum qeth_link_types link_type;
671 int is_multicast_different;
672 int initial_mtu;
673 int max_mtu;
674 int broadcast_capable;
675 int unique_id;
676 struct qeth_card_blkt blkt;
677 __u32 csum_mask;
f6b85b6c 678 __u32 tx_csum_mask;
4a71df50 679 enum qeth_ipa_promisc_modes promisc_mode;
1da74b1c
FB		 680 __u32 diagass_support;
681 __u32 hwtrap;
4a71df50
FB		 682};
683
684struct qeth_card_options {
685 struct qeth_routing_info route4;
686 struct qeth_ipa_info ipa4;
687 struct qeth_ipa_info adp; /*Adapter parameters*/
688 struct qeth_routing_info route6;
689 struct qeth_ipa_info ipa6;
b4d72c08 690 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
4a71df50
FB		 691 int fake_broadcast;
692 int add_hhlen;
4a71df50 693 int layer2;
4a71df50
FB		 694 int performance_stats;
695 int rx_sg_cb;
d64ecc22 696 enum qeth_ipa_isolation_modes isolation;
0f54761d 697 enum qeth_ipa_isolation_modes prev_isolation;
76b11f8e 698 int sniffer;
0da9581d 699 enum qeth_cq cq;
b3332930 700 char hsuid[9];
4a71df50
FB		 701};
702
703/*
704 * thread bits for qeth_card thread masks
705 */
706enum qeth_threads {
707 QETH_RECOVER_THREAD = 1,
708};
709
710struct qeth_osn_info {
711 int (*assist_cb)(struct net_device *dev, void *data);
712 int (*data_cb)(struct sk_buff *skb);
713};
714
715enum qeth_discipline_id {
716 QETH_DISCIPLINE_LAYER3 = 0,
717 QETH_DISCIPLINE_LAYER2 = 1,
718};
719
720struct qeth_discipline {
a1c3ed4c 721 void (*start_poll)(struct ccw_device *, int, unsigned long);
4a71df50
FB		 722 qdio_handler_t *input_handler;
723 qdio_handler_t *output_handler;
724 int (*recover)(void *ptr);
c041f2d4
SO		 725 int (*setup) (struct ccwgroup_device *);
726 void (*remove) (struct ccwgroup_device *);
727 int (*set_online) (struct ccwgroup_device *);
728 int (*set_offline) (struct ccwgroup_device *);
729 void (*shutdown)(struct ccwgroup_device *);
730 int (*prepare) (struct ccwgroup_device *);
731 void (*complete) (struct ccwgroup_device *);
732 int (*freeze)(struct ccwgroup_device *);
733 int (*thaw) (struct ccwgroup_device *);
734 int (*restore)(struct ccwgroup_device *);
c044dc21
EC		 735 int (*control_event_handler)(struct qeth_card *card,
736 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 737};
738
739struct qeth_vlan_vid {
740 struct list_head list;
741 unsigned short vid;
742};
743
5f78e29c
LD		 744enum qeth_addr_disposition {
745 QETH_DISP_ADDR_DELETE = 0,
746 QETH_DISP_ADDR_DO_NOTHING = 1,
747 QETH_DISP_ADDR_ADD = 2,
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 793 struct list_head vid_list;
fe5c8028 794 DECLARE_HASHTABLE(mac_htable, 4);
5f78e29c
LD		 795 DECLARE_HASHTABLE(ip_htable, 4);
796 DECLARE_HASHTABLE(ip_mc_htable, 4);
4a71df50
FB		 797 struct work_struct kernel_thread_starter;
798 spinlock_t thread_mask_lock;
799 unsigned long thread_start_mask;
800 unsigned long thread_allowed_mask;
801 unsigned long thread_running_mask;
65d8013c 802 struct task_struct *recovery_task;
4a71df50 803 spinlock_t ip_lock;
4a71df50
FB		 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
2863c613
EC		 841/**
842 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
843 * @start: Start of the address range.
844 * @end: Address after the end of the range.
845 *
846 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
847 * the specified address range.
848 */
849static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
850{
851 return PFN_UP(end - 1) - PFN_DOWN(start);
852}
853
4a71df50
FB		 854static inline int qeth_get_micros(void)
855{
1aae0560 856 return (int) (get_tod_clock() >> 12);
4a71df50
FB		 857}
858
4a71df50
FB		 859static inline int qeth_get_ip_version(struct sk_buff *skb)
860{
a9baf10a
SR		 861 __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
862
863 if (*p == ETH_P_8021Q)
864 p += 2;
865 switch (*p) {
4a71df50
FB		 866 case ETH_P_IPV6:
867 return 6;
868 case ETH_P_IP:
869 return 4;
870 default:
871 return 0;
872 }
873}
874
41aeed58
EC		 875static inline int qeth_get_ip_protocol(struct sk_buff *skb)
876{
877 return ip_hdr(skb)->protocol;
878}
879
f90b744e
FB		 880static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
881 struct qeth_buffer_pool_entry *entry)
882{
883 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
884}
885
1da74b1c
FB		 886static inline int qeth_is_diagass_supported(struct qeth_card *card,
887 enum qeth_diags_cmds cmd)
888{
889 return card->info.diagass_support & (__u32)cmd;
890}
891
c041f2d4
SO		 892extern struct qeth_discipline qeth_l2_discipline;
893extern struct qeth_discipline qeth_l3_discipline;
b7169c51
SO		 894extern const struct attribute_group *qeth_generic_attr_groups[];
895extern const struct attribute_group *qeth_osn_attr_groups[];
b4d72c08 896extern struct workqueue_struct *qeth_wq;
b7169c51 897
511c2445 898int qeth_card_hw_is_reachable(struct qeth_card *);
4a71df50
FB		 899const char *qeth_get_cardname_short(struct qeth_card *);
900int qeth_realloc_buffer_pool(struct qeth_card *, int);
901int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
902void qeth_core_free_discipline(struct qeth_card *);
4a71df50
FB		 903
904/* exports for qeth discipline device drivers */
905extern struct qeth_card_list_struct qeth_core_card_list;
683d718a 906extern struct kmem_cache *qeth_core_header_cache;
d11ba0c4 907extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
4a71df50 908
65d8013c
SR		 909void qeth_set_recovery_task(struct qeth_card *);
910void qeth_clear_recovery_task(struct qeth_card *);
4a71df50
FB		 911void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
912int qeth_threads_running(struct qeth_card *, unsigned long);
913int qeth_wait_for_threads(struct qeth_card *, unsigned long);
914int qeth_do_run_thread(struct qeth_card *, unsigned long);
915void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
916void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
917int qeth_core_hardsetup_card(struct qeth_card *);
918void qeth_print_status_message(struct qeth_card *);
919int qeth_init_qdio_queues(struct qeth_card *);
920int qeth_send_startlan(struct qeth_card *);
4a71df50
FB		 921int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
922 int (*reply_cb)
923 (struct qeth_card *, struct qeth_reply *, unsigned long),
924 void *);
925struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
926 enum qeth_ipa_cmds, enum qeth_prot_versions);
927int qeth_query_setadapterparms(struct qeth_card *);
76b11f8e
UB		 928int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
929 unsigned int, const char *);
4a71df50
FB		 930void qeth_queue_input_buffer(struct qeth_card *, int);
931struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
b3332930 932 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
4a71df50
FB		 933 struct qeth_hdr **);
934void qeth_schedule_recovery(struct qeth_card *);
a1c3ed4c
FB		 935void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
936void qeth_qdio_input_handler(struct ccw_device *,
937 unsigned int, unsigned int, int,
938 int, unsigned long);
4a71df50 939void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
779e6e1c 940 int, int, int, unsigned long);
4a71df50
FB		 941void qeth_clear_ipacmd_list(struct qeth_card *);
942int qeth_qdio_clear_card(struct qeth_card *, int);
943void qeth_clear_working_pool_list(struct qeth_card *);
944void qeth_clear_cmd_buffers(struct qeth_channel *);
945void qeth_clear_qdio_buffers(struct qeth_card *);
946void qeth_setadp_promisc_mode(struct qeth_card *);
947struct net_device_stats *qeth_get_stats(struct net_device *);
948int qeth_change_mtu(struct net_device *, int);
949int qeth_setadpparms_change_macaddr(struct qeth_card *);
950void qeth_tx_timeout(struct net_device *);
951void qeth_prepare_control_data(struct qeth_card *, int,
952 struct qeth_cmd_buffer *);
953void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
954void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
955struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
956int qeth_mdio_read(struct net_device *, int, int);
957int qeth_snmp_command(struct qeth_card *, char __user *);
c3ab96f3 958int qeth_query_oat_command(struct qeth_card *, char __user *);
45cbb2e4
SR		 959int qeth_query_switch_attributes(struct qeth_card *card,
960 struct qeth_switch_info *sw_info);
4a71df50
FB		 961int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
962 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
963 void *reply_param);
b4d72c08
EC		 964int qeth_bridgeport_query_ports(struct qeth_card *card,
965 enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
966int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
9f48b9db 967int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
4a71df50 968int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
065cc782 969int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int);
271648b4 970int qeth_get_elements_for_frags(struct sk_buff *);
4a71df50 971int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
64ef8957 972 struct sk_buff *, struct qeth_hdr *, int, int, int);
4a71df50 973int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
64ef8957 974 struct sk_buff *, struct qeth_hdr *, int);
df8b4ec8 975int qeth_core_get_sset_count(struct net_device *, int);
4a71df50
FB		 976void qeth_core_get_ethtool_stats(struct net_device *,
977 struct ethtool_stats *, u64 *);
978void qeth_core_get_strings(struct net_device *, u32, u8 *);
979void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
8e96c51c 980void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
3f9975aa 981int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
0f54761d 982int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
d4ae1f5e 983int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
0da9581d 984int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1da74b1c
FB		 985int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
986int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
395672e0 987void qeth_trace_features(struct qeth_card *);
0f54761d 988void qeth_close_dev(struct qeth_card *);
4d7def2a
TR		 989int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
990 __u16, long);
991int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
992 long,
993 int (*reply_cb)(struct qeth_card *,
994 struct qeth_reply *, unsigned long),
995 void *);
8f43fb00 996int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
b475e316
TR		 997struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
998 enum qeth_ipa_funcs,
999 __u16, __u16,
1000 enum qeth_prot_versions);
8f43fb00
TR		 1001int qeth_set_features(struct net_device *, netdev_features_t);
1002netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
4a71df50
FB		 1003
1004/* exports for OSN */
1005int qeth_osn_assist(struct net_device *, void *, int);
1006int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1007 int (*assist_cb)(struct net_device *, void *),
1008 int (*data_cb)(struct sk_buff *));
1009void qeth_osn_deregister(struct net_device *);
1010
1011#endif /* __QETH_CORE_H__ */
Linux 6.x block layer and io_uring tree(s)