projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
s390/qeth: re-use qeth_notify_skbs()
[linux-2.6-block.git] / drivers / s390 / net / qeth_core.h
CommitLineData
b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
4a71df50 2/*
4a71df50
FB		 3 * Copyright IBM Corp. 2007
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
8 */
9
10#ifndef __QETH_CORE_H__
11#define __QETH_CORE_H__
12
13#include <linux/if.h>
14#include <linux/if_arp.h>
4a71df50
FB		 15#include <linux/etherdevice.h>
16#include <linux/if_vlan.h>
17#include <linux/ctype.h>
18#include <linux/in6.h>
19#include <linux/bitops.h>
20#include <linux/seq_file.h>
21#include <linux/ethtool.h>
fe5c8028 22#include <linux/hashtable.h>
41aeed58 23#include <linux/ip.h>
ae695927 24#include <linux/refcount.h>
4a71df50
FB		 25
26#include <net/ipv6.h>
27#include <net/if_inet6.h>
28#include <net/addrconf.h>
e517b649 29#include <net/tcp.h>
4a71df50
FB		 30
31#include <asm/debug.h>
32#include <asm/qdio.h>
33#include <asm/ccwdev.h>
34#include <asm/ccwgroup.h>
6bcac508 35#include <asm/sysinfo.h>
4a71df50
FB		 36
37#include "qeth_core_mpc.h"
38
39/**
40 * Debug Facility stuff
41 */
d11ba0c4
PT		 42enum qeth_dbf_names {
43 QETH_DBF_SETUP,
d11ba0c4 44 QETH_DBF_MSG,
d11ba0c4
PT		 45 QETH_DBF_CTRL,
46 QETH_DBF_INFOS /* must be last element */
47};
48
49struct qeth_dbf_info {
50 char name[DEBUG_MAX_NAME_LEN];
51 int pages;
52 int areas;
53 int len;
54 int level;
55 struct debug_view *view;
56 debug_info_t *id;
57};
58
59#define QETH_DBF_CTRL_LEN 256
4a71df50
FB		 60
61#define QETH_DBF_TEXT(name, level, text) \
d11ba0c4 62 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
4a71df50
FB		 63
64#define QETH_DBF_HEX(name, level, addr, len) \
d11ba0c4
PT		 65 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
66
67#define QETH_DBF_MESSAGE(level, text...) \
68 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
69
70#define QETH_DBF_TEXT_(name, level, text...) \
8e96c51c 71 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
4a71df50 72
af039068
CO		 73#define QETH_CARD_TEXT(card, level, text) \
74 debug_text_event(card->debug, level, text)
75
76#define QETH_CARD_HEX(card, level, addr, len) \
77 debug_event(card->debug, level, (void *)(addr), len)
78
79#define QETH_CARD_MESSAGE(card, text...) \
80 debug_sprintf_event(card->debug, level, text)
81
82#define QETH_CARD_TEXT_(card, level, text...) \
83 qeth_dbf_longtext(card->debug, level, text)
84
4a71df50
FB		 85#define SENSE_COMMAND_REJECT_BYTE 0
86#define SENSE_COMMAND_REJECT_FLAG 0x80
87#define SENSE_RESETTING_EVENT_BYTE 1
88#define SENSE_RESETTING_EVENT_FLAG 0x80
89
90/*
91 * Common IO related definitions
92 */
93#define CARD_RDEV(card) card->read.ccwdev
94#define CARD_WDEV(card) card->write.ccwdev
95#define CARD_DDEV(card) card->data.ccwdev
2a0217d5
KS		 96#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
97#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
98#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
99#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
100#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
4a71df50
FB		 101
102/**
103 * card stuff
104 */
105struct qeth_perf_stats {
106 unsigned int bufs_rec;
107 unsigned int bufs_sent;
d2a274b2 108 unsigned int buf_elements_sent;
4a71df50
FB		 109
110 unsigned int skbs_sent_pack;
111 unsigned int bufs_sent_pack;
112
113 unsigned int sc_dp_p;
114 unsigned int sc_p_dp;
0da9581d
EL		 115 /* qdio_cq_handler: number of times called, time spent in */
116 __u64 cq_start_time;
117 unsigned int cq_cnt;
118 unsigned int cq_time;
4a71df50
FB		 119 /* qdio_input_handler: number of times called, time spent in */
120 __u64 inbound_start_time;
121 unsigned int inbound_cnt;
122 unsigned int inbound_time;
123 /* qeth_send_packet: number of times called, time spent in */
124 __u64 outbound_start_time;
125 unsigned int outbound_cnt;
126 unsigned int outbound_time;
127 /* qdio_output_handler: number of times called, time spent in */
128 __u64 outbound_handler_start_time;
129 unsigned int outbound_handler_cnt;
130 unsigned int outbound_handler_time;
131 /* number of calls to and time spent in do_QDIO for inbound queue */
132 __u64 inbound_do_qdio_start_time;
133 unsigned int inbound_do_qdio_cnt;
134 unsigned int inbound_do_qdio_time;
135 /* number of calls to and time spent in do_QDIO for outbound queues */
136 __u64 outbound_do_qdio_start_time;
137 unsigned int outbound_do_qdio_cnt;
138 unsigned int outbound_do_qdio_time;
4a71df50
FB		 139 unsigned int large_send_bytes;
140 unsigned int large_send_cnt;
141 unsigned int sg_skbs_sent;
4a71df50
FB		 142 /* initial values when measuring starts */
143 unsigned long initial_rx_packets;
144 unsigned long initial_tx_packets;
145 /* inbound scatter gather data */
146 unsigned int sg_skbs_rx;
147 unsigned int sg_frags_rx;
148 unsigned int sg_alloc_page_rx;
f61a0d05 149 unsigned int tx_csum;
c3b4a740 150 unsigned int tx_lin;
6059c905 151 unsigned int tx_linfail;
3aade31b 152 unsigned int rx_csum;
4a71df50
FB		 153};
154
155/* Routing stuff */
156struct qeth_routing_info {
157 enum qeth_routing_types type;
158};
159
160/* IPA stuff */
161struct qeth_ipa_info {
162 __u32 supported_funcs;
163 __u32 enabled_funcs;
164};
165
b4d72c08
EC		 166/* SETBRIDGEPORT stuff */
167enum qeth_sbp_roles {
168 QETH_SBP_ROLE_NONE = 0,
169 QETH_SBP_ROLE_PRIMARY = 1,
170 QETH_SBP_ROLE_SECONDARY = 2,
171};
172
173enum qeth_sbp_states {
174 QETH_SBP_STATE_INACTIVE = 0,
175 QETH_SBP_STATE_STANDBY = 1,
176 QETH_SBP_STATE_ACTIVE = 2,
177};
178
9f48b9db
EC		 179#define QETH_SBP_HOST_NOTIFICATION 1
180
b4d72c08
EC		 181struct qeth_sbp_info {
182 __u32 supported_funcs;
183 enum qeth_sbp_roles role;
9f48b9db 184 __u32 hostnotification:1;
0db587b0
EC		 185 __u32 reflect_promisc:1;
186 __u32 reflect_promisc_primary:1;
b4d72c08
EC		 187};
188
a45b3faf
HW		 189struct qeth_vnicc_info {
190 /* supported/currently configured VNICCs; updated in IPA exchanges */
191 u32 sup_chars;
192 u32 cur_chars;
caa1f0b1
HW		 193 /* supported commands: bitmasks which VNICCs support respective cmd */
194 u32 set_char_sup;
349d13d5
HW		 195 u32 getset_timeout_sup;
196 /* timeout value for the learning characteristic */
197 u32 learning_timeout;
caa1f0b1
HW		 198 /* characteristics wanted/configured by user */
199 u32 wanted_chars;
200 /* has user explicitly enabled rx_bcast while online? */
201 bool rx_bcast_enabled;
a45b3faf
HW		 202};
203
4a71df50
FB		 204static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
205 enum qeth_ipa_funcs func)
206{
207 return (ipa->supported_funcs & func);
208}
209
210static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
211 enum qeth_ipa_funcs func)
212{
213 return (ipa->supported_funcs & ipa->enabled_funcs & func);
214}
215
216#define qeth_adp_supported(c, f) \
217 qeth_is_ipa_supported(&c->options.adp, f)
218#define qeth_adp_enabled(c, f) \
219 qeth_is_ipa_enabled(&c->options.adp, f)
220#define qeth_is_supported(c, f) \
221 qeth_is_ipa_supported(&c->options.ipa4, f)
222#define qeth_is_enabled(c, f) \
223 qeth_is_ipa_enabled(&c->options.ipa4, f)
224#define qeth_is_supported6(c, f) \
225 qeth_is_ipa_supported(&c->options.ipa6, f)
226#define qeth_is_enabled6(c, f) \
227 qeth_is_ipa_enabled(&c->options.ipa6, f)
228#define qeth_is_ipafunc_supported(c, prot, f) \
229 ((prot == QETH_PROT_IPV6) ? \
230 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
231#define qeth_is_ipafunc_enabled(c, prot, f) \
232 ((prot == QETH_PROT_IPV6) ? \
233 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
234
5113fec0 235#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
6298263a 236#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
4a71df50 237
4a71df50 238#define QETH_BUFSIZE 4096
45ca2fd6
JW		 239#define CCW_CMD_WRITE 0x01
240#define CCW_CMD_READ 0x02
4a71df50
FB		 241
242/**
243 * some more defs
244 */
245#define QETH_TX_TIMEOUT 100 * HZ
246#define QETH_RCD_TIMEOUT 60 * HZ
b3332930 247#define QETH_RECLAIM_WORK_TIME HZ
4a71df50
FB		 248#define QETH_MAX_PORTNO 15
249
250/*IPv6 address autoconfiguration stuff*/
251#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
252#define UNIQUE_ID_NOT_BY_CARD 0x10000
253
254/*****************************************************************************/
255/* QDIO queue and buffer handling */
256/*****************************************************************************/
257#define QETH_MAX_QUEUES 4
258#define QETH_IN_BUF_SIZE_DEFAULT 65536
dcf4ae2d
FB		 259#define QETH_IN_BUF_COUNT_DEFAULT 64
260#define QETH_IN_BUF_COUNT_HSDEFAULT 128
4a71df50
FB		 261#define QETH_IN_BUF_COUNT_MIN 8
262#define QETH_IN_BUF_COUNT_MAX 128
263#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
264#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
0284a0fd 265 ((card)->qdio.in_buf_pool.buf_count / 2)
4a71df50
FB		 266
267/* buffers we have to be behind before we get a PCI */
268#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
269/*enqueued free buffers left before we get a PCI*/
270#define QETH_PCI_THRESHOLD_B(card) 0
271/*not used unless the microcode gets patched*/
272#define QETH_PCI_TIMER_VALUE(card) 3
273
4a71df50
FB		 274/* priority queing */
275#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
276#define QETH_DEFAULT_QUEUE 2
277#define QETH_NO_PRIO_QUEUEING 0
278#define QETH_PRIO_Q_ING_PREC 1
279#define QETH_PRIO_Q_ING_TOS 2
d66cb37e
SR		 280#define QETH_PRIO_Q_ING_SKB 3
281#define QETH_PRIO_Q_ING_VLAN 4
4a71df50
FB		 282
283/* Packing */
284#define QETH_LOW_WATERMARK_PACK 2
285#define QETH_HIGH_WATERMARK_PACK 5
286#define QETH_WATERMARK_PACK_FUZZ 1
287
4a71df50
FB		 288/* large receive scatter gather copy break */
289#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
b3332930 290#define QETH_RX_PULL_LEN 256
4a71df50
FB		 291
292struct qeth_hdr_layer3 {
293 __u8 id;
294 __u8 flags;
295 __u16 inbound_checksum; /*TSO:__u16 seqno */
296 __u32 token; /*TSO: __u32 reserved */
297 __u16 length;
298 __u8 vlan_prio;
299 __u8 ext_flags;
300 __u16 vlan_id;
301 __u16 frame_offset;
a843383a
JW		 302 union {
303 /* TX: */
304 u8 ipv6_addr[16];
305 struct ipv4 {
306 u8 res[12];
307 u32 addr;
308 } ipv4;
309 /* RX: */
310 struct rx {
311 u8 res1[2];
312 u8 src_mac[6];
313 u8 res2[4];
314 u16 vlan_id;
315 u8 res3[2];
316 } rx;
317 } next_hop;
318};
4a71df50
FB		 319
320struct qeth_hdr_layer2 {
321 __u8 id;
322 __u8 flags[3];
323 __u8 port_no;
324 __u8 hdr_length;
325 __u16 pkt_length;
326 __u16 seq_no;
327 __u16 vlan_id;
328 __u32 reserved;
329 __u8 reserved2[16];
330} __attribute__ ((packed));
331
332struct qeth_hdr_osn {
333 __u8 id;
334 __u8 reserved;
335 __u16 seq_no;
336 __u16 reserved2;
337 __u16 control_flags;
338 __u16 pdu_length;
339 __u8 reserved3[18];
340 __u32 ccid;
341} __attribute__ ((packed));
342
343struct qeth_hdr {
344 union {
345 struct qeth_hdr_layer2 l2;
346 struct qeth_hdr_layer3 l3;
347 struct qeth_hdr_osn osn;
348 } hdr;
349} __attribute__ ((packed));
350
351/*TCP Segmentation Offload header*/
352struct qeth_hdr_ext_tso {
353 __u16 hdr_tot_len;
354 __u8 imb_hdr_no;
355 __u8 reserved;
356 __u8 hdr_type;
357 __u8 hdr_version;
358 __u16 hdr_len;
359 __u32 payload_len;
360 __u16 mss;
361 __u16 dg_hdr_len;
362 __u8 padding[16];
363} __attribute__ ((packed));
364
365struct qeth_hdr_tso {
366 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
367 struct qeth_hdr_ext_tso ext;
368} __attribute__ ((packed));
369
370
371/* flags for qeth_hdr.flags */
372#define QETH_HDR_PASSTHRU 0x10
373#define QETH_HDR_IPV6 0x80
374#define QETH_HDR_CAST_MASK 0x07
375enum qeth_cast_flags {
376 QETH_CAST_UNICAST = 0x06,
377 QETH_CAST_MULTICAST = 0x04,
378 QETH_CAST_BROADCAST = 0x05,
379 QETH_CAST_ANYCAST = 0x07,
380 QETH_CAST_NOCAST = 0x00,
381};
382
383enum qeth_layer2_frame_flags {
384 QETH_LAYER2_FLAG_MULTICAST = 0x01,
385 QETH_LAYER2_FLAG_BROADCAST = 0x02,
386 QETH_LAYER2_FLAG_UNICAST = 0x04,
387 QETH_LAYER2_FLAG_VLAN = 0x10,
388};
389
390enum qeth_header_ids {
391 QETH_HEADER_TYPE_LAYER3 = 0x01,
392 QETH_HEADER_TYPE_LAYER2 = 0x02,
393 QETH_HEADER_TYPE_TSO = 0x03,
394 QETH_HEADER_TYPE_OSN = 0x04,
395};
396/* flags for qeth_hdr.ext_flags */
397#define QETH_HDR_EXT_VLAN_FRAME 0x01
398#define QETH_HDR_EXT_TOKEN_ID 0x02
399#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
400#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
401#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
402#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
f6b85b6c 403#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
4a71df50 404
4a71df50
FB		 405enum qeth_qdio_buffer_states {
406 /*
407 * inbound: read out by driver; owned by hardware in order to be filled
408 * outbound: owned by driver in order to be filled
409 */
410 QETH_QDIO_BUF_EMPTY,
411 /*
412 * inbound: filled by hardware; owned by driver in order to be read out
413 * outbound: filled by driver; owned by hardware in order to be sent
414 */
415 QETH_QDIO_BUF_PRIMED,
b3332930
FB		 416 /*
417 * inbound: not applicable
418 * outbound: identified to be pending in TPQ
419 */
420 QETH_QDIO_BUF_PENDING,
421 /*
422 * inbound: not applicable
423 * outbound: found in completion queue
424 */
425 QETH_QDIO_BUF_IN_CQ,
0da9581d
EL		 426 /*
427 * inbound: not applicable
428 * outbound: handled via transfer pending / completion queue
429 */
430 QETH_QDIO_BUF_HANDLED_DELAYED,
4a71df50
FB		 431};
432
433enum qeth_qdio_info_states {
434 QETH_QDIO_UNINITIALIZED,
435 QETH_QDIO_ALLOCATED,
436 QETH_QDIO_ESTABLISHED,
437 QETH_QDIO_CLEANING
438};
439
440struct qeth_buffer_pool_entry {
441 struct list_head list;
442 struct list_head init_list;
443 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
444};
445
446struct qeth_qdio_buffer_pool {
447 struct list_head entry_list;
448 int buf_count;
449};
450
451struct qeth_qdio_buffer {
452 struct qdio_buffer *buffer;
453 /* the buffer pool entry currently associated to this buffer */
454 struct qeth_buffer_pool_entry *pool_entry;
b3332930 455 struct sk_buff *rx_skb;
4a71df50
FB		 456};
457
458struct qeth_qdio_q {
6d284bde 459 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
4a71df50
FB		 460 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
461 int next_buf_to_init;
6d284bde 462};
4a71df50 463
4a71df50
FB		 464struct qeth_qdio_out_buffer {
465 struct qdio_buffer *buffer;
466 atomic_t state;
467 int next_element_to_fill;
468 struct sk_buff_head skb_list;
2aedd56a 469 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
0da9581d 470
0da9581d
EL		 471 struct qeth_qdio_out_q *q;
472 struct qeth_qdio_out_buffer *next_pending;
4a71df50
FB		 473};
474
475struct qeth_card;
476
477enum qeth_out_q_states {
478 QETH_OUT_Q_UNLOCKED,
479 QETH_OUT_Q_LOCKED,
480 QETH_OUT_Q_LOCKED_FLUSH,
481};
482
483struct qeth_qdio_out_q {
d445a4e2 484 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
0da9581d
EL		 485 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
486 struct qdio_outbuf_state *bufstates; /* convenience pointer */
4a71df50
FB		 487 int queue_no;
488 struct qeth_card *card;
489 atomic_t state;
490 int do_pack;
491 /*
492 * index of buffer to be filled by driver; state EMPTY or PACKING
493 */
494 int next_buf_to_fill;
495 /*
496 * number of buffers that are currently filled (PRIMED)
497 * -> these buffers are hardware-owned
498 */
499 atomic_t used_buffers;
500 /* indicates whether PCI flag must be set (or if one is outstanding) */
501 atomic_t set_pci_flags_count;
d445a4e2 502};
4a71df50
FB		 503
504struct qeth_qdio_info {
505 atomic_t state;
506 /* input */
0da9581d 507 int no_in_queues;
4a71df50 508 struct qeth_qdio_q *in_q;
0da9581d 509 struct qeth_qdio_q *c_q;
4a71df50
FB		 510 struct qeth_qdio_buffer_pool in_buf_pool;
511 struct qeth_qdio_buffer_pool init_pool;
512 int in_buf_size;
513
514 /* output */
515 int no_out_queues;
516 struct qeth_qdio_out_q **out_qs;
0da9581d 517 struct qdio_outbuf_state *out_bufstates;
4a71df50
FB		 518
519 /* priority queueing */
520 int do_prio_queueing;
521 int default_out_queue;
522};
523
4a71df50
FB		 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
4a71df50
FB		 560enum qeth_cmd_buffer_state {
561 BUF_STATE_FREE,
562 BUF_STATE_LOCKED,
4a71df50
FB		 563};
564
0da9581d
EL		 565enum qeth_cq {
566 QETH_CQ_DISABLED = 0,
567 QETH_CQ_ENABLED = 1,
568 QETH_CQ_NOTAVAILABLE = 2,
569};
570
4a71df50 571struct qeth_ipato {
7fbd9493 572 bool enabled;
02f510f3
JW		 573 bool invert4;
574 bool invert6;
4a71df50
FB		 575 struct list_head entries;
576};
577
578struct qeth_channel;
579
580struct qeth_cmd_buffer {
581 enum qeth_cmd_buffer_state state;
582 struct qeth_channel *channel;
583 unsigned char *data;
584 int rc;
585 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
586};
587
1c5b2216
JW		 588static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
589{
590 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
591}
592
4a71df50
FB		 593/**
594 * definition of a qeth channel, used for read and write
595 */
596struct qeth_channel {
597 enum qeth_channel_states state;
f15cdaf2 598 struct ccw1 *ccw;
4a71df50
FB		 599 spinlock_t iob_lock;
600 wait_queue_head_t wait_q;
4a71df50
FB		 601 struct ccw_device *ccwdev;
602/*command buffer for control data*/
603 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
604 atomic_t irq_pending;
605 int io_buf_no;
4a71df50
FB		 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;
ae695927 642 refcount_t refcnt;
4a71df50
FB		 643};
644
4a71df50
FB		 645struct qeth_card_blkt {
646 int time_total;
647 int inter_packet;
648 int inter_packet_jumbo;
649};
650
651#define QETH_BROADCAST_WITH_ECHO 0x01
652#define QETH_BROADCAST_WITHOUT_ECHO 0x02
653#define QETH_LAYER2_MAC_READ 0x01
654#define QETH_LAYER2_MAC_REGISTERED 0x02
655struct qeth_card_info {
656 unsigned short unit_addr2;
657 unsigned short cula;
658 unsigned short chpid;
659 __u16 func_level;
660 char mcl_level[QETH_MCL_LENGTH + 1];
661 int guestlan;
662 int mac_bits;
4a71df50
FB		 663 enum qeth_card_types type;
664 enum qeth_link_types link_type;
4a71df50
FB		 665 int broadcast_capable;
666 int unique_id;
c70eb09d 667 bool layer_enforced;
4a71df50 668 struct qeth_card_blkt blkt;
4a71df50 669 enum qeth_ipa_promisc_modes promisc_mode;
1da74b1c
FB		 670 __u32 diagass_support;
671 __u32 hwtrap;
4a71df50
FB		 672};
673
4fda3354
JW		 674enum qeth_discipline_id {
675 QETH_DISCIPLINE_UNDETERMINED = -1,
676 QETH_DISCIPLINE_LAYER3 = 0,
677 QETH_DISCIPLINE_LAYER2 = 1,
678};
679
4a71df50
FB		 680struct qeth_card_options {
681 struct qeth_routing_info route4;
682 struct qeth_ipa_info ipa4;
683 struct qeth_ipa_info adp; /*Adapter parameters*/
684 struct qeth_routing_info route6;
685 struct qeth_ipa_info ipa6;
b4d72c08 686 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
a45b3faf 687 struct qeth_vnicc_info vnicc; /* VNICC options */
4a71df50 688 int fake_broadcast;
4fda3354 689 enum qeth_discipline_id layer;
4a71df50
FB		 690 int performance_stats;
691 int rx_sg_cb;
d64ecc22 692 enum qeth_ipa_isolation_modes isolation;
0f54761d 693 enum qeth_ipa_isolation_modes prev_isolation;
76b11f8e 694 int sniffer;
0da9581d 695 enum qeth_cq cq;
b3332930 696 char hsuid[9];
4a71df50
FB		 697};
698
4fda3354
JW		 699#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
700#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
701
4a71df50
FB		 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
4a71df50 714struct qeth_discipline {
2d2ebb3e 715 const struct device_type *devtype;
d73ef324 716 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
4a71df50 717 int (*recover)(void *ptr);
c041f2d4
SO		 718 int (*setup) (struct ccwgroup_device *);
719 void (*remove) (struct ccwgroup_device *);
720 int (*set_online) (struct ccwgroup_device *);
721 int (*set_offline) (struct ccwgroup_device *);
c041f2d4
SO		 722 int (*freeze)(struct ccwgroup_device *);
723 int (*thaw) (struct ccwgroup_device *);
724 int (*restore)(struct ccwgroup_device *);
942d6984 725 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
c044dc21
EC		 726 int (*control_event_handler)(struct qeth_card *card,
727 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 728};
729
730struct qeth_vlan_vid {
731 struct list_head list;
732 unsigned short vid;
733};
734
5f78e29c
LD		 735enum qeth_addr_disposition {
736 QETH_DISP_ADDR_DELETE = 0,
737 QETH_DISP_ADDR_DO_NOTHING = 1,
738 QETH_DISP_ADDR_ADD = 2,
4a71df50
FB		 739};
740
a1c3ed4c
FB		 741struct qeth_rx {
742 int b_count;
743 int b_index;
744 struct qdio_buffer_element *b_element;
745 int e_offset;
746 int qdio_err;
747};
748
02d5cb5b
EC		 749struct carrier_info {
750 __u8 card_type;
751 __u16 port_mode;
752 __u32 port_speed;
753};
754
45cbb2e4
SR		 755struct qeth_switch_info {
756 __u32 capabilities;
757 __u32 settings;
758};
759
6541aa52 760#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
a1c3ed4c 761
4a71df50
FB		 762struct qeth_card {
763 struct list_head list;
764 enum qeth_card_states state;
765 int lan_online;
766 spinlock_t lock;
767 struct ccwgroup_device *gdev;
768 struct qeth_channel read;
769 struct qeth_channel write;
770 struct qeth_channel data;
771
772 struct net_device *dev;
773 struct net_device_stats stats;
774
775 struct qeth_card_info info;
776 struct qeth_token token;
777 struct qeth_seqno seqno;
778 struct qeth_card_options options;
779
780 wait_queue_head_t wait_q;
4a71df50 781 spinlock_t mclock;
7ff0bcf6 782 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
d4ac0246 783 struct mutex vid_list_mutex; /* vid_list */
4a71df50 784 struct list_head vid_list;
fe5c8028 785 DECLARE_HASHTABLE(mac_htable, 4);
5f78e29c
LD		 786 DECLARE_HASHTABLE(ip_htable, 4);
787 DECLARE_HASHTABLE(ip_mc_htable, 4);
4a71df50
FB		 788 struct work_struct kernel_thread_starter;
789 spinlock_t thread_mask_lock;
790 unsigned long thread_start_mask;
791 unsigned long thread_allowed_mask;
792 unsigned long thread_running_mask;
65d8013c 793 struct task_struct *recovery_task;
4a71df50 794 spinlock_t ip_lock;
4a71df50
FB		 795 struct qeth_ipato ipato;
796 struct list_head cmd_waiter_list;
797 /* QDIO buffer handling */
798 struct qeth_qdio_info qdio;
799 struct qeth_perf_stats perf_stats;
908abbb5 800 int read_or_write_problem;
4a71df50 801 struct qeth_osn_info osn_info;
c041f2d4 802 struct qeth_discipline *discipline;
4a71df50 803 atomic_t force_alloc_skb;
6bcac508 804 struct service_level qeth_service_level;
76b11f8e 805 struct qdio_ssqd_desc ssqd;
af039068 806 debug_info_t *debug;
c4949f07 807 struct mutex conf_mutex;
9dc48ccc 808 struct mutex discipline_mutex;
a1c3ed4c
FB		 809 struct napi_struct napi;
810 struct qeth_rx rx;
b3332930
FB		 811 struct delayed_work buffer_reclaim_work;
812 int reclaim_index;
0f54761d 813 struct work_struct close_dev_work;
4a71df50
FB		 814};
815
816struct qeth_card_list_struct {
817 struct list_head list;
818 rwlock_t rwlock;
819};
820
1da74b1c
FB		 821struct qeth_trap_id {
822 __u16 lparnr;
823 char vmname[8];
824 __u8 chpid;
825 __u8 ssid;
826 __u16 devno;
827} __packed;
828
4a71df50
FB		 829/*some helper functions*/
830#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
831
ce28867f
JW		 832static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
833 unsigned int elements)
834{
835 unsigned int i;
836
837 for (i = 0; i < elements; i++)
838 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
839 buf->element[14].sflags = 0;
840 buf->element[15].sflags = 0;
841}
842
2863c613
EC		 843/**
844 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
845 * @start: Start of the address range.
846 * @end: Address after the end of the range.
847 *
848 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
849 * the specified address range.
850 */
851static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
852{
89271c65 853 return PFN_UP(end) - PFN_DOWN(start);
2863c613
EC		 854}
855
4a71df50
FB		 856static inline int qeth_get_micros(void)
857{
1aae0560 858 return (int) (get_tod_clock() >> 12);
4a71df50
FB		 859}
860
4a71df50
FB		 861static inline int qeth_get_ip_version(struct sk_buff *skb)
862{
19e36da6
JW		 863 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
864 __be16 prot = veth->h_vlan_proto;
a9baf10a 865
19e36da6
JW		 866 if (prot == htons(ETH_P_8021Q))
867 prot = veth->h_vlan_encapsulated_proto;
868
869 switch (prot) {
870 case htons(ETH_P_IPV6):
4a71df50 871 return 6;
19e36da6 872 case htons(ETH_P_IP):
4a71df50
FB		 873 return 4;
874 default:
875 return 0;
876 }
877}
878
6195b936
JW		 879static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb,
880 u8 flags)
881{
882 if ((card->dev->features & NETIF_F_RXCSUM) &&
3aade31b 883 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) {
6195b936 884 skb->ip_summed = CHECKSUM_UNNECESSARY;
3aade31b
KM		 885 if (card->options.performance_stats)
886 card->perf_stats.rx_csum++;
887 } else {
6195b936 888 skb->ip_summed = CHECKSUM_NONE;
3aade31b 889 }
6195b936
JW		 890}
891
571f9dd8 892static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
6195b936
JW		 893{
894 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
571f9dd8
KM		 895 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
896 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
6195b936 897 *flags |= QETH_HDR_EXT_UDP;
6195b936
JW		 898}
899
f90b744e
FB		 900static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
901 struct qeth_buffer_pool_entry *entry)
902{
903 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
904}
905
1da74b1c
FB		 906static inline int qeth_is_diagass_supported(struct qeth_card *card,
907 enum qeth_diags_cmds cmd)
908{
909 return card->info.diagass_support & (__u32)cmd;
910}
911
a8155b00
KM		 912int qeth_send_simple_setassparms_prot(struct qeth_card *card,
913 enum qeth_ipa_funcs ipa_func,
914 u16 cmd_code, long data,
915 enum qeth_prot_versions prot);
916/* IPv4 variant */
917static inline int qeth_send_simple_setassparms(struct qeth_card *card,
918 enum qeth_ipa_funcs ipa_func,
919 u16 cmd_code, long data)
920{
921 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
922 data, QETH_PROT_IPV4);
923}
924
925static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
926 enum qeth_ipa_funcs ipa_func,
927 u16 cmd_code, long data)
928{
929 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
930 data, QETH_PROT_IPV6);
931}
932
86c0cdb9
JW		 933int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
934 int ipv);
935static inline struct qeth_qdio_out_q *qeth_get_tx_queue(struct qeth_card *card,
936 struct sk_buff *skb,
937 int ipv, int cast_type)
938{
939 if (IS_IQD(card) && cast_type != RTN_UNICAST)
940 return card->qdio.out_qs[card->qdio.no_out_queues - 1];
941 if (!card->qdio.do_prio_queueing)
942 return card->qdio.out_qs[card->qdio.default_out_queue];
943 return card->qdio.out_qs[qeth_get_priority_queue(card, skb, ipv)];
944}
945
c041f2d4
SO		 946extern struct qeth_discipline qeth_l2_discipline;
947extern struct qeth_discipline qeth_l3_discipline;
b7169c51
SO		 948extern const struct attribute_group *qeth_generic_attr_groups[];
949extern const struct attribute_group *qeth_osn_attr_groups[];
2d2ebb3e
JW		 950extern const struct attribute_group qeth_device_attr_group;
951extern const struct attribute_group qeth_device_blkt_group;
952extern const struct device_type qeth_generic_devtype;
b4d72c08 953extern struct workqueue_struct *qeth_wq;
b7169c51 954
511c2445 955int qeth_card_hw_is_reachable(struct qeth_card *);
4a71df50
FB		 956const char *qeth_get_cardname_short(struct qeth_card *);
957int qeth_realloc_buffer_pool(struct qeth_card *, int);
958int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
959void qeth_core_free_discipline(struct qeth_card *);
4a71df50
FB		 960
961/* exports for qeth discipline device drivers */
962extern struct qeth_card_list_struct qeth_core_card_list;
683d718a 963extern struct kmem_cache *qeth_core_header_cache;
d11ba0c4 964extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
4a71df50 965
d3d1b205 966struct net_device *qeth_clone_netdev(struct net_device *orig);
65d8013c
SR		 967void qeth_set_recovery_task(struct qeth_card *);
968void qeth_clear_recovery_task(struct qeth_card *);
4a71df50
FB		 969void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
970int qeth_threads_running(struct qeth_card *, unsigned long);
971int qeth_wait_for_threads(struct qeth_card *, unsigned long);
972int qeth_do_run_thread(struct qeth_card *, unsigned long);
973void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
974void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
975int qeth_core_hardsetup_card(struct qeth_card *);
976void qeth_print_status_message(struct qeth_card *);
977int qeth_init_qdio_queues(struct qeth_card *);
4a71df50
FB		 978int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
979 int (*reply_cb)
980 (struct qeth_card *, struct qeth_reply *, unsigned long),
981 void *);
982struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
983 enum qeth_ipa_cmds, enum qeth_prot_versions);
4a71df50 984struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
b3332930 985 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
4a71df50
FB		 986 struct qeth_hdr **);
987void qeth_schedule_recovery(struct qeth_card *);
d73ef324 988int qeth_poll(struct napi_struct *napi, int budget);
4a71df50
FB		 989void qeth_clear_ipacmd_list(struct qeth_card *);
990int qeth_qdio_clear_card(struct qeth_card *, int);
991void qeth_clear_working_pool_list(struct qeth_card *);
992void qeth_clear_cmd_buffers(struct qeth_channel *);
993void qeth_clear_qdio_buffers(struct qeth_card *);
994void qeth_setadp_promisc_mode(struct qeth_card *);
995struct net_device_stats *qeth_get_stats(struct net_device *);
4a71df50
FB		 996int qeth_setadpparms_change_macaddr(struct qeth_card *);
997void qeth_tx_timeout(struct net_device *);
998void qeth_prepare_control_data(struct qeth_card *, int,
999 struct qeth_cmd_buffer *);
1000void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
73657a3e 1001void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob);
4a71df50 1002struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
45cbb2e4
SR		 1003int qeth_query_switch_attributes(struct qeth_card *card,
1004 struct qeth_switch_info *sw_info);
4a71df50
FB		 1005int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
1006 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
1007 void *reply_param);
40e6a225 1008unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
7c2e9ba3 1009int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
cc309f83 1010 struct qeth_hdr *hdr, unsigned int offset,
13ddacb5
JW		 1011 unsigned int hd_len);
1012int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1013 struct sk_buff *skb, struct qeth_hdr *hdr,
e878c5e6
JR		 1014 unsigned int offset, unsigned int hd_len,
1015 int elements_needed);
942d6984 1016int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
df8b4ec8 1017int qeth_core_get_sset_count(struct net_device *, int);
4a71df50
FB		 1018void qeth_core_get_ethtool_stats(struct net_device *,
1019 struct ethtool_stats *, u64 *);
1020void qeth_core_get_strings(struct net_device *, u32, u8 *);
1021void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
8e96c51c 1022void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
993e19c0
JW		 1023int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev,
1024 struct ethtool_link_ksettings *cmd);
0f54761d 1025int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
0da9581d 1026int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1da74b1c 1027int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
395672e0 1028void qeth_trace_features(struct qeth_card *);
0f54761d 1029void qeth_close_dev(struct qeth_card *);
4d7def2a
TR		 1030int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
1031 long,
1032 int (*reply_cb)(struct qeth_card *,
1033 struct qeth_reply *, unsigned long),
1034 void *);
8f43fb00 1035int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
b475e316
TR		 1036struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
1037 enum qeth_ipa_funcs,
1038 __u16, __u16,
1039 enum qeth_prot_versions);
8f43fb00 1040int qeth_set_features(struct net_device *, netdev_features_t);
d025da9e 1041void qeth_enable_hw_features(struct net_device *dev);
8f43fb00 1042netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
6d69b1f1
JW		 1043netdev_features_t qeth_features_check(struct sk_buff *skb,
1044 struct net_device *dev,
1045 netdev_features_t features);
ec61bd2f 1046int qeth_vm_request_mac(struct qeth_card *card);
ba86ceee 1047int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb,
a7c2f4a3
JW		 1048 struct qeth_hdr **hdr, unsigned int hdr_len,
1049 unsigned int proto_len, unsigned int *elements);
fc69660b
JW		 1050int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1051 struct qeth_qdio_out_q *queue, int ipv, int cast_type,
1052 void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr,
1053 struct sk_buff *skb, int ipv, int cast_type,
1054 unsigned int data_len));
4a71df50
FB		 1055
1056/* exports for OSN */
1057int qeth_osn_assist(struct net_device *, void *, int);
1058int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1059 int (*assist_cb)(struct net_device *, void *),
1060 int (*data_cb)(struct sk_buff *));
1061void qeth_osn_deregister(struct net_device *);
1062
1063#endif /* __QETH_CORE_H__ */
Linux 6.x block layer and io_uring tree(s)