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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2007
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
8 */
9
10#ifndef __QETH_CORE_H__
11#define __QETH_CORE_H__
12
13#include <linux/completion.h>
14#include <linux/debugfs.h>
15#include <linux/if.h>
16#include <linux/if_arp.h>
17#include <linux/etherdevice.h>
18#include <linux/if_vlan.h>
19#include <linux/ctype.h>
20#include <linux/in6.h>
21#include <linux/bitops.h>
22#include <linux/seq_file.h>
23#include <linux/hashtable.h>
24#include <linux/ip.h>
25#include <linux/rcupdate.h>
26#include <linux/refcount.h>
27#include <linux/timer.h>
28#include <linux/types.h>
29#include <linux/wait.h>
30#include <linux/workqueue.h>
31
32#include <net/dst.h>
33#include <net/ip6_fib.h>
34#include <net/ipv6.h>
35#include <net/if_inet6.h>
36#include <net/addrconf.h>
37#include <net/route.h>
38#include <net/sch_generic.h>
39#include <net/tcp.h>
40
41#include <asm/debug.h>
42#include <asm/qdio.h>
43#include <asm/ccwdev.h>
44#include <asm/ccwgroup.h>
45#include <asm/sysinfo.h>
46
47#include <uapi/linux/if_link.h>
48
49#include "qeth_core_mpc.h"
50
51/**
52 * Debug Facility stuff
53 */
54enum qeth_dbf_names {
55 QETH_DBF_SETUP,
56 QETH_DBF_MSG,
57 QETH_DBF_CTRL,
58 QETH_DBF_INFOS /* must be last element */
59};
60
61struct qeth_dbf_info {
62 char name[DEBUG_MAX_NAME_LEN];
63 int pages;
64 int areas;
65 int len;
66 int level;
67 struct debug_view *view;
68 debug_info_t *id;
69};
70
71#define QETH_DBF_CTRL_LEN 256U
72
73#define QETH_DBF_TEXT(name, level, text) \
74 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
75
76#define QETH_DBF_HEX(name, level, addr, len) \
77 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
78
79#define QETH_DBF_MESSAGE(level, text...) \
80 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
81
82#define QETH_DBF_TEXT_(name, level, text...) \
83 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
84
85#define QETH_CARD_TEXT(card, level, text) \
86 debug_text_event(card->debug, level, text)
87
88#define QETH_CARD_HEX(card, level, addr, len) \
89 debug_event(card->debug, level, (void *)(addr), len)
90
91#define QETH_CARD_MESSAGE(card, text...) \
92 debug_sprintf_event(card->debug, level, text)
93
94#define QETH_CARD_TEXT_(card, level, text...) \
95 qeth_dbf_longtext(card->debug, level, text)
96
97#define SENSE_COMMAND_REJECT_BYTE 0
98#define SENSE_COMMAND_REJECT_FLAG 0x80
99#define SENSE_RESETTING_EVENT_BYTE 1
100#define SENSE_RESETTING_EVENT_FLAG 0x80
101
102static inline u32 qeth_get_device_id(struct ccw_device *cdev)
103{
104 struct ccw_dev_id dev_id;
105 u32 id;
106
107 ccw_device_get_id(cdev, &dev_id);
108 id = dev_id.devno;
109 id |= (u32) (dev_id.ssid << 16);
110
111 return id;
112}
113
114/*
115 * Common IO related definitions
116 */
117#define CARD_RDEV(card) card->read.ccwdev
118#define CARD_WDEV(card) card->write.ccwdev
119#define CARD_DDEV(card) card->data.ccwdev
120#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
121#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
122#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
123#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
124#define CCW_DEVID(cdev) (qeth_get_device_id(cdev))
125#define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card)))
126
127/* Routing stuff */
128struct qeth_routing_info {
129 enum qeth_routing_types type;
130};
131
132/* SETBRIDGEPORT stuff */
133enum qeth_sbp_roles {
134 QETH_SBP_ROLE_NONE = 0,
135 QETH_SBP_ROLE_PRIMARY = 1,
136 QETH_SBP_ROLE_SECONDARY = 2,
137};
138
139enum qeth_sbp_states {
140 QETH_SBP_STATE_INACTIVE = 0,
141 QETH_SBP_STATE_STANDBY = 1,
142 QETH_SBP_STATE_ACTIVE = 2,
143};
144
145#define QETH_SBP_HOST_NOTIFICATION 1
146
147struct qeth_sbp_info {
148 __u32 supported_funcs;
149 enum qeth_sbp_roles role;
150 __u32 hostnotification:1;
151 __u32 reflect_promisc:1;
152 __u32 reflect_promisc_primary:1;
153};
154
155struct qeth_vnicc_info {
156 /* supported/currently configured VNICCs; updated in IPA exchanges */
157 u32 sup_chars;
158 u32 cur_chars;
159 /* supported commands: bitmasks which VNICCs support respective cmd */
160 u32 set_char_sup;
161 u32 getset_timeout_sup;
162 /* timeout value for the learning characteristic */
163 u32 learning_timeout;
164 /* characteristics wanted/configured by user */
165 u32 wanted_chars;
166 /* has user explicitly enabled rx_bcast while online? */
167 bool rx_bcast_enabled;
168};
169
170#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
171#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
172
173#define QETH_BUFSIZE 4096
174#define CCW_CMD_WRITE 0x01
175#define CCW_CMD_READ 0x02
176
177/**
178 * some more defs
179 */
180#define QETH_TX_TIMEOUT 100 * HZ
181#define QETH_RCD_TIMEOUT 60 * HZ
182#define QETH_RECLAIM_WORK_TIME HZ
183#define QETH_MAX_PORTNO 15
184
185/*****************************************************************************/
186/* QDIO queue and buffer handling */
187/*****************************************************************************/
188#define QETH_MAX_OUT_QUEUES 4
189#define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */
190#define QETH_IQD_MCAST_TXQ 0
191#define QETH_IQD_MIN_UCAST_TXQ 1
192
193#define QETH_MAX_IN_QUEUES 2
194#define QETH_RX_COPYBREAK (PAGE_SIZE >> 1)
195#define QETH_IN_BUF_SIZE_DEFAULT 65536
196#define QETH_IN_BUF_COUNT_DEFAULT 64
197#define QETH_IN_BUF_COUNT_HSDEFAULT 128
198#define QETH_IN_BUF_COUNT_MIN 8
199#define QETH_IN_BUF_COUNT_MAX 128
200#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
201#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
202 ((card)->qdio.in_buf_pool.buf_count / 2)
203
204/* buffers we have to be behind before we get a PCI */
205#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
206/*enqueued free buffers left before we get a PCI*/
207#define QETH_PCI_THRESHOLD_B(card) 0
208/*not used unless the microcode gets patched*/
209#define QETH_PCI_TIMER_VALUE(card) 3
210
211/* priority queing */
212#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
213#define QETH_DEFAULT_QUEUE 2
214#define QETH_NO_PRIO_QUEUEING 0
215#define QETH_PRIO_Q_ING_PREC 1
216#define QETH_PRIO_Q_ING_TOS 2
217#define QETH_PRIO_Q_ING_SKB 3
218#define QETH_PRIO_Q_ING_VLAN 4
219#define QETH_PRIO_Q_ING_FIXED 5
220
221/* Packing */
222#define QETH_LOW_WATERMARK_PACK 2
223#define QETH_HIGH_WATERMARK_PACK 5
224#define QETH_WATERMARK_PACK_FUZZ 1
225
226struct qeth_hdr_layer3 {
227 __u8 id;
228 __u8 flags;
229 __u16 inbound_checksum; /*TSO:__u16 seqno */
230 __u32 token; /*TSO: __u32 reserved */
231 __u16 length;
232 __u8 vlan_prio;
233 __u8 ext_flags;
234 __u16 vlan_id;
235 __u16 frame_offset;
236 union {
237 /* TX: */
238 struct in6_addr addr;
239 /* RX: */
240 struct rx {
241 u8 res1[2];
242 u8 src_mac[6];
243 u8 res2[4];
244 u16 vlan_id;
245 u8 res3[2];
246 } rx;
247 } next_hop;
248};
249
250struct qeth_hdr_layer2 {
251 __u8 id;
252 __u8 flags[3];
253 __u8 port_no;
254 __u8 hdr_length;
255 __u16 pkt_length;
256 __u16 seq_no;
257 __u16 vlan_id;
258 __u32 reserved;
259 __u8 reserved2[16];
260} __attribute__ ((packed));
261
262struct qeth_hdr_osn {
263 __u8 id;
264 __u8 reserved;
265 __u16 seq_no;
266 __u16 reserved2;
267 __u16 control_flags;
268 __u16 pdu_length;
269 __u8 reserved3[18];
270 __u32 ccid;
271} __attribute__ ((packed));
272
273struct qeth_hdr {
274 union {
275 struct qeth_hdr_layer2 l2;
276 struct qeth_hdr_layer3 l3;
277 struct qeth_hdr_osn osn;
278 } hdr;
279} __attribute__ ((packed));
280
281/*TCP Segmentation Offload header*/
282struct qeth_hdr_ext_tso {
283 __u16 hdr_tot_len;
284 __u8 imb_hdr_no;
285 __u8 reserved;
286 __u8 hdr_type;
287 __u8 hdr_version;
288 __u16 hdr_len;
289 __u32 payload_len;
290 __u16 mss;
291 __u16 dg_hdr_len;
292 __u8 padding[16];
293} __attribute__ ((packed));
294
295struct qeth_hdr_tso {
296 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
297 struct qeth_hdr_ext_tso ext;
298} __attribute__ ((packed));
299
300
301/* flags for qeth_hdr.flags */
302#define QETH_HDR_PASSTHRU 0x10
303#define QETH_HDR_IPV6 0x80
304#define QETH_HDR_CAST_MASK 0x07
305enum qeth_cast_flags {
306 QETH_CAST_UNICAST = 0x06,
307 QETH_CAST_MULTICAST = 0x04,
308 QETH_CAST_BROADCAST = 0x05,
309 QETH_CAST_ANYCAST = 0x07,
310 QETH_CAST_NOCAST = 0x00,
311};
312
313enum qeth_layer2_frame_flags {
314 QETH_LAYER2_FLAG_MULTICAST = 0x01,
315 QETH_LAYER2_FLAG_BROADCAST = 0x02,
316 QETH_LAYER2_FLAG_UNICAST = 0x04,
317 QETH_LAYER2_FLAG_VLAN = 0x10,
318};
319
320enum qeth_header_ids {
321 QETH_HEADER_TYPE_LAYER3 = 0x01,
322 QETH_HEADER_TYPE_LAYER2 = 0x02,
323 QETH_HEADER_TYPE_L3_TSO = 0x03,
324 QETH_HEADER_TYPE_OSN = 0x04,
325 QETH_HEADER_TYPE_L2_TSO = 0x06,
326 QETH_HEADER_MASK_INVAL = 0x80,
327};
328/* flags for qeth_hdr.ext_flags */
329#define QETH_HDR_EXT_VLAN_FRAME 0x01
330#define QETH_HDR_EXT_TOKEN_ID 0x02
331#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
332#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
333#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
334#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
335#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
336
337static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
338 struct qeth_hdr_layer2 *h2)
339{
340 return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
341 h1->vlan_id == h2->vlan_id;
342}
343
344static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
345 struct qeth_hdr_layer3 *h2)
346{
347 return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
348 h1->vlan_id == h2->vlan_id;
349}
350
351static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
352 struct qeth_hdr_layer3 *h2)
353{
354 return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
355 ipv6_addr_equal(&h1->next_hop.addr, &h2->next_hop.addr);
356}
357
358struct qeth_local_addr {
359 struct hlist_node hnode;
360 struct rcu_head rcu;
361 struct in6_addr addr;
362};
363
364enum qeth_qdio_info_states {
365 QETH_QDIO_UNINITIALIZED,
366 QETH_QDIO_ALLOCATED,
367 QETH_QDIO_ESTABLISHED,
368 QETH_QDIO_CLEANING
369};
370
371struct qeth_buffer_pool_entry {
372 struct list_head list;
373 struct list_head init_list;
374 struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
375};
376
377struct qeth_qdio_buffer_pool {
378 struct list_head entry_list;
379 int buf_count;
380};
381
382struct qeth_qdio_buffer {
383 struct qdio_buffer *buffer;
384 /* the buffer pool entry currently associated to this buffer */
385 struct qeth_buffer_pool_entry *pool_entry;
386 struct sk_buff *rx_skb;
387};
388
389struct qeth_qdio_q {
390 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
391 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
392 int next_buf_to_init;
393};
394
395enum qeth_qdio_out_buffer_state {
396 /* Owned by driver, in order to be filled. */
397 QETH_QDIO_BUF_EMPTY,
398 /* Filled by driver; owned by hardware in order to be sent. */
399 QETH_QDIO_BUF_PRIMED,
400 /* Identified to be pending in TPQ. */
401 QETH_QDIO_BUF_PENDING,
402 /* Found in completion queue. */
403 QETH_QDIO_BUF_IN_CQ,
404 /* Handled via transfer pending / completion queue. */
405 QETH_QDIO_BUF_HANDLED_DELAYED,
406};
407
408struct qeth_qdio_out_buffer {
409 struct qdio_buffer *buffer;
410 atomic_t state;
411 int next_element_to_fill;
412 unsigned int frames;
413 unsigned int bytes;
414 struct sk_buff_head skb_list;
415 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
416
417 struct qeth_qdio_out_q *q;
418 struct qeth_qdio_out_buffer *next_pending;
419};
420
421struct qeth_card;
422
423enum qeth_out_q_states {
424 QETH_OUT_Q_UNLOCKED,
425 QETH_OUT_Q_LOCKED,
426 QETH_OUT_Q_LOCKED_FLUSH,
427};
428
429#define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
430#define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
431
432#define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
433#define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
434
435struct qeth_card_stats {
436 u64 rx_bufs;
437 u64 rx_skb_csum;
438 u64 rx_sg_skbs;
439 u64 rx_sg_frags;
440 u64 rx_sg_alloc_page;
441
442 u64 rx_dropped_nomem;
443 u64 rx_dropped_notsupp;
444 u64 rx_dropped_runt;
445
446 /* rtnl_link_stats64 */
447 u64 rx_packets;
448 u64 rx_bytes;
449 u64 rx_multicast;
450 u64 rx_length_errors;
451 u64 rx_frame_errors;
452 u64 rx_fifo_errors;
453};
454
455struct qeth_out_q_stats {
456 u64 bufs;
457 u64 bufs_pack;
458 u64 buf_elements;
459 u64 skbs_pack;
460 u64 skbs_sg;
461 u64 skbs_csum;
462 u64 skbs_tso;
463 u64 skbs_linearized;
464 u64 skbs_linearized_fail;
465 u64 tso_bytes;
466 u64 packing_mode_switch;
467 u64 stopped;
468 u64 doorbell;
469 u64 coal_frames;
470 u64 completion_yield;
471 u64 completion_timer;
472
473 /* rtnl_link_stats64 */
474 u64 tx_packets;
475 u64 tx_bytes;
476 u64 tx_errors;
477 u64 tx_dropped;
478};
479
480#define QETH_TX_MAX_COALESCED_FRAMES 1
481#define QETH_TX_COALESCE_USECS 25
482#define QETH_TX_TIMER_USECS 500
483
484struct qeth_qdio_out_q {
485 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
486 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
487 struct qdio_outbuf_state *bufstates; /* convenience pointer */
488 struct qeth_out_q_stats stats;
489 u8 next_buf_to_fill;
490 u8 max_elements;
491 u8 queue_no;
492 u8 do_pack;
493 struct qeth_card *card;
494 atomic_t state;
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;
502 struct napi_struct napi;
503 struct timer_list timer;
504 struct qeth_hdr *prev_hdr;
505 unsigned int coalesced_frames;
506 u8 bulk_start;
507 u8 bulk_count;
508 u8 bulk_max;
509
510 unsigned int coalesce_usecs;
511 unsigned int max_coalesced_frames;
512};
513
514#define qeth_for_each_output_queue(card, q, i) \
515 for (i = 0; i < card->qdio.no_out_queues && \
516 (q = card->qdio.out_qs[i]); i++)
517
518#define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
519
520static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue,
521 unsigned long usecs)
522{
523 timer_reduce(&queue->timer, usecs_to_jiffies(usecs) + jiffies);
524}
525
526static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
527{
528 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
529}
530
531static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
532{
533 return atomic_read(&queue->used_buffers) == 0;
534}
535
536struct qeth_qdio_info {
537 atomic_t state;
538 /* input */
539 int no_in_queues;
540 struct qeth_qdio_q *in_q;
541 struct qeth_qdio_q *c_q;
542 struct qeth_qdio_buffer_pool in_buf_pool;
543 struct qeth_qdio_buffer_pool init_pool;
544 int in_buf_size;
545
546 /* output */
547 int no_out_queues;
548 struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
549 struct qdio_outbuf_state *out_bufstates;
550
551 /* priority queueing */
552 int do_prio_queueing;
553 int default_out_queue;
554};
555
556/**
557 * channel state machine
558 */
559enum qeth_channel_states {
560 CH_STATE_UP,
561 CH_STATE_DOWN,
562 CH_STATE_HALTED,
563 CH_STATE_STOPPED,
564};
565/**
566 * card state machine
567 */
568enum qeth_card_states {
569 CARD_STATE_DOWN,
570 CARD_STATE_SOFTSETUP,
571};
572
573/**
574 * Protocol versions
575 */
576enum qeth_prot_versions {
577 QETH_PROT_NONE = 0x0000,
578 QETH_PROT_IPV4 = 0x0004,
579 QETH_PROT_IPV6 = 0x0006,
580};
581
582enum qeth_cq {
583 QETH_CQ_DISABLED = 0,
584 QETH_CQ_ENABLED = 1,
585 QETH_CQ_NOTAVAILABLE = 2,
586};
587
588struct qeth_ipato {
589 bool enabled;
590 bool invert4;
591 bool invert6;
592 struct list_head entries;
593};
594
595struct qeth_channel {
596 struct ccw_device *ccwdev;
597 struct qeth_cmd_buffer *active_cmd;
598 enum qeth_channel_states state;
599 atomic_t irq_pending;
600};
601
602struct qeth_reply {
603 int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
604 unsigned long data);
605 void *param;
606};
607
608struct qeth_cmd_buffer {
609 struct list_head list;
610 struct completion done;
611 spinlock_t lock;
612 unsigned int length;
613 refcount_t ref_count;
614 struct qeth_channel *channel;
615 struct qeth_reply reply;
616 long timeout;
617 unsigned char *data;
618 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
619 bool (*match)(struct qeth_cmd_buffer *iob,
620 struct qeth_cmd_buffer *reply);
621 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
622 unsigned int data_length);
623 int rc;
624};
625
626static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
627{
628 refcount_inc(&iob->ref_count);
629}
630
631static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob)
632{
633 if (!IS_IPA(iob->data))
634 return NULL;
635
636 return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
637}
638
639static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
640{
641 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
642}
643
644static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
645{
646 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
647}
648
649static inline bool qeth_trylock_channel(struct qeth_channel *channel)
650{
651 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0;
652}
653
654/**
655 * OSA card related definitions
656 */
657struct qeth_token {
658 __u32 issuer_rm_w;
659 __u32 issuer_rm_r;
660 __u32 cm_filter_w;
661 __u32 cm_filter_r;
662 __u32 cm_connection_w;
663 __u32 cm_connection_r;
664 __u32 ulp_filter_w;
665 __u32 ulp_filter_r;
666 __u32 ulp_connection_w;
667 __u32 ulp_connection_r;
668};
669
670struct qeth_seqno {
671 __u32 trans_hdr;
672 __u32 pdu_hdr;
673 __u32 pdu_hdr_ack;
674 __u16 ipa;
675};
676
677struct qeth_card_blkt {
678 int time_total;
679 int inter_packet;
680 int inter_packet_jumbo;
681};
682
683#define QETH_BROADCAST_WITH_ECHO 0x01
684#define QETH_BROADCAST_WITHOUT_ECHO 0x02
685struct qeth_card_info {
686 unsigned short unit_addr2;
687 unsigned short cula;
688 u8 chpid;
689 __u16 func_level;
690 char mcl_level[QETH_MCL_LENGTH + 1];
691 u8 dev_addr_is_registered:1;
692 u8 open_when_online:1;
693 u8 promisc_mode:1;
694 u8 use_v1_blkt:1;
695 u8 is_vm_nic:1;
696 /* no bitfield, we take a pointer on these two: */
697 u8 has_lp2lp_cso_v6;
698 u8 has_lp2lp_cso_v4;
699 enum qeth_card_types type;
700 enum qeth_link_types link_type;
701 int broadcast_capable;
702 bool layer_enforced;
703 struct qeth_card_blkt blkt;
704 __u32 diagass_support;
705 __u32 hwtrap;
706};
707
708enum qeth_discipline_id {
709 QETH_DISCIPLINE_UNDETERMINED = -1,
710 QETH_DISCIPLINE_LAYER3 = 0,
711 QETH_DISCIPLINE_LAYER2 = 1,
712};
713
714struct qeth_card_options {
715 struct qeth_ipa_caps ipa4;
716 struct qeth_ipa_caps ipa6;
717 struct qeth_routing_info route4;
718 struct qeth_routing_info route6;
719 struct qeth_ipa_caps adp; /* Adapter parameters */
720 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
721 struct qeth_vnicc_info vnicc; /* VNICC options */
722 enum qeth_discipline_id layer;
723 enum qeth_ipa_isolation_modes isolation;
724 int sniffer;
725 enum qeth_cq cq;
726 char hsuid[9];
727};
728
729#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
730#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
731
732/*
733 * thread bits for qeth_card thread masks
734 */
735enum qeth_threads {
736 QETH_RECOVER_THREAD = 1,
737};
738
739struct qeth_osn_info {
740 int (*assist_cb)(struct net_device *dev, void *data);
741 int (*data_cb)(struct sk_buff *skb);
742};
743
744struct qeth_discipline {
745 const struct device_type *devtype;
746 int (*setup) (struct ccwgroup_device *);
747 void (*remove) (struct ccwgroup_device *);
748 int (*set_online)(struct qeth_card *card);
749 void (*set_offline)(struct qeth_card *card);
750 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
751 int (*control_event_handler)(struct qeth_card *card,
752 struct qeth_ipa_cmd *cmd);
753};
754
755enum qeth_addr_disposition {
756 QETH_DISP_ADDR_DELETE = 0,
757 QETH_DISP_ADDR_DO_NOTHING = 1,
758 QETH_DISP_ADDR_ADD = 2,
759};
760
761struct qeth_rx {
762 int b_count;
763 int b_index;
764 u8 buf_element;
765 int e_offset;
766 int qdio_err;
767 u8 bufs_refill;
768};
769
770struct carrier_info {
771 __u8 card_type;
772 __u16 port_mode;
773 __u32 port_speed;
774};
775
776struct qeth_switch_info {
777 __u32 capabilities;
778 __u32 settings;
779};
780
781struct qeth_priv {
782 unsigned int rx_copybreak;
783};
784
785#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
786
787struct qeth_card {
788 enum qeth_card_states state;
789 spinlock_t lock;
790 struct ccwgroup_device *gdev;
791 struct qeth_cmd_buffer *read_cmd;
792 struct qeth_channel read;
793 struct qeth_channel write;
794 struct qeth_channel data;
795
796 struct net_device *dev;
797 struct dentry *debugfs;
798 struct qeth_card_stats stats;
799 struct qeth_card_info info;
800 struct qeth_token token;
801 struct qeth_seqno seqno;
802 struct qeth_card_options options;
803
804 struct workqueue_struct *event_wq;
805 struct workqueue_struct *cmd_wq;
806 wait_queue_head_t wait_q;
807 DECLARE_HASHTABLE(ip_htable, 4);
808 DECLARE_HASHTABLE(local_addrs4, 4);
809 DECLARE_HASHTABLE(local_addrs6, 4);
810 spinlock_t local_addrs4_lock;
811 spinlock_t local_addrs6_lock;
812 struct mutex ip_lock;
813 DECLARE_HASHTABLE(rx_mode_addrs, 4);
814 struct work_struct rx_mode_work;
815 struct work_struct kernel_thread_starter;
816 spinlock_t thread_mask_lock;
817 unsigned long thread_start_mask;
818 unsigned long thread_allowed_mask;
819 unsigned long thread_running_mask;
820 struct qeth_ipato ipato;
821 struct list_head cmd_waiter_list;
822 /* QDIO buffer handling */
823 struct qeth_qdio_info qdio;
824 int read_or_write_problem;
825 struct qeth_osn_info osn_info;
826 struct qeth_discipline *discipline;
827 atomic_t force_alloc_skb;
828 struct service_level qeth_service_level;
829 struct qdio_ssqd_desc ssqd;
830 debug_info_t *debug;
831 struct mutex sbp_lock;
832 struct mutex conf_mutex;
833 struct mutex discipline_mutex;
834 struct napi_struct napi;
835 struct qeth_rx rx;
836 struct delayed_work buffer_reclaim_work;
837 struct work_struct close_dev_work;
838};
839
840static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
841{
842 return card->state == CARD_STATE_SOFTSETUP;
843}
844
845static inline void qeth_unlock_channel(struct qeth_card *card,
846 struct qeth_channel *channel)
847{
848 atomic_set(&channel->irq_pending, 0);
849 wake_up(&card->wait_q);
850}
851
852struct qeth_trap_id {
853 __u16 lparnr;
854 char vmname[8];
855 __u8 chpid;
856 __u8 ssid;
857 __u16 devno;
858} __packed;
859
860/*some helper functions*/
861#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
862
863static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
864{
865 if (txq == QETH_IQD_MCAST_TXQ)
866 return dev->num_tx_queues - 1;
867 if (txq == dev->num_tx_queues - 1)
868 return QETH_IQD_MCAST_TXQ;
869 return txq;
870}
871
872static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
873 struct qeth_qdio_out_q *queue)
874{
875 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
876 QETH_IQD_MCAST_TXQ;
877}
878
879static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
880 unsigned int elements)
881{
882 unsigned int i;
883
884 for (i = 0; i < elements; i++)
885 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
886 buf->element[14].sflags = 0;
887 buf->element[15].sflags = 0;
888}
889
890/**
891 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
892 * @start: Start of the address range.
893 * @end: Address after the end of the range.
894 *
895 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
896 * the specified address range.
897 */
898static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
899{
900 return PFN_UP(end) - PFN_DOWN(start);
901}
902
903static inline int qeth_get_ip_version(struct sk_buff *skb)
904{
905 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
906 __be16 prot = veth->h_vlan_proto;
907
908 if (prot == htons(ETH_P_8021Q))
909 prot = veth->h_vlan_encapsulated_proto;
910
911 switch (prot) {
912 case htons(ETH_P_IPV6):
913 return 6;
914 case htons(ETH_P_IP):
915 return 4;
916 default:
917 return 0;
918 }
919}
920
921static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
922{
923 u8 *addr = eth_hdr(skb)->h_dest;
924
925 if (is_multicast_ether_addr(addr))
926 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
927 RTN_MULTICAST;
928 return RTN_UNICAST;
929}
930
931static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv)
932{
933 struct dst_entry *dst = skb_dst(skb);
934 struct rt6_info *rt;
935
936 rt = (struct rt6_info *) dst;
937 if (dst)
938 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
939 return dst;
940}
941
942static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
943 struct dst_entry *dst)
944{
945 struct rtable *rt = (struct rtable *) dst;
946
947 return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
948}
949
950static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
951 struct dst_entry *dst)
952{
953 struct rt6_info *rt = (struct rt6_info *) dst;
954
955 if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
956 return &rt->rt6i_gateway;
957 else
958 return &ipv6_hdr(skb)->daddr;
959}
960
961static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
962{
963 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
964 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
965 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
966 *flags |= QETH_HDR_EXT_UDP;
967}
968
969static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
970 struct qeth_buffer_pool_entry *entry)
971{
972 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
973}
974
975static inline int qeth_is_diagass_supported(struct qeth_card *card,
976 enum qeth_diags_cmds cmd)
977{
978 return card->info.diagass_support & (__u32)cmd;
979}
980
981int qeth_send_simple_setassparms_prot(struct qeth_card *card,
982 enum qeth_ipa_funcs ipa_func,
983 u16 cmd_code, u32 *data,
984 enum qeth_prot_versions prot);
985/* IPv4 variant */
986static inline int qeth_send_simple_setassparms(struct qeth_card *card,
987 enum qeth_ipa_funcs ipa_func,
988 u16 cmd_code, u32 *data)
989{
990 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
991 data, QETH_PROT_IPV4);
992}
993
994static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
995 enum qeth_ipa_funcs ipa_func,
996 u16 cmd_code, u32 *data)
997{
998 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
999 data, QETH_PROT_IPV6);
1000}
1001
1002int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1003
1004extern struct qeth_discipline qeth_l2_discipline;
1005extern struct qeth_discipline qeth_l3_discipline;
1006extern const struct ethtool_ops qeth_ethtool_ops;
1007extern const struct ethtool_ops qeth_osn_ethtool_ops;
1008extern const struct attribute_group *qeth_generic_attr_groups[];
1009extern const struct attribute_group *qeth_osn_attr_groups[];
1010extern const struct attribute_group qeth_device_attr_group;
1011extern const struct attribute_group qeth_device_blkt_group;
1012extern const struct device_type qeth_generic_devtype;
1013
1014const char *qeth_get_cardname_short(struct qeth_card *);
1015int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
1016int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
1017void qeth_core_free_discipline(struct qeth_card *);
1018
1019/* exports for qeth discipline device drivers */
1020extern struct kmem_cache *qeth_core_header_cache;
1021extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1022
1023struct net_device *qeth_clone_netdev(struct net_device *orig);
1024struct qeth_card *qeth_get_card_by_busid(char *bus_id);
1025void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
1026int qeth_threads_running(struct qeth_card *, unsigned long);
1027int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok);
1028int qeth_stop_channel(struct qeth_channel *channel);
1029int qeth_set_offline(struct qeth_card *card, bool resetting);
1030
1031void qeth_print_status_message(struct qeth_card *);
1032int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1033 int (*reply_cb)
1034 (struct qeth_card *, struct qeth_reply *, unsigned long),
1035 void *);
1036struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1037 enum qeth_ipa_cmds cmd_code,
1038 enum qeth_prot_versions prot,
1039 unsigned int data_length);
1040struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,
1041 unsigned int length, unsigned int ccws,
1042 long timeout);
1043struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1044 enum qeth_ipa_funcs ipa_func,
1045 u16 cmd_code,
1046 unsigned int data_length,
1047 enum qeth_prot_versions prot);
1048struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1049 enum qeth_diags_cmds sub_cmd,
1050 unsigned int data_length);
1051void qeth_notify_cmd(struct qeth_cmd_buffer *iob, int reason);
1052void qeth_put_cmd(struct qeth_cmd_buffer *iob);
1053
1054int qeth_schedule_recovery(struct qeth_card *card);
1055void qeth_flush_local_addrs(struct qeth_card *card);
1056int qeth_poll(struct napi_struct *napi, int budget);
1057void qeth_clear_ipacmd_list(struct qeth_card *);
1058int qeth_qdio_clear_card(struct qeth_card *, int);
1059void qeth_clear_working_pool_list(struct qeth_card *);
1060void qeth_drain_output_queues(struct qeth_card *card);
1061void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
1062int qeth_setadpparms_change_macaddr(struct qeth_card *);
1063void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
1064void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1065 u16 cmd_length,
1066 bool (*match)(struct qeth_cmd_buffer *iob,
1067 struct qeth_cmd_buffer *reply));
1068int qeth_query_switch_attributes(struct qeth_card *card,
1069 struct qeth_switch_info *sw_info);
1070int qeth_query_card_info(struct qeth_card *card,
1071 struct carrier_info *carrier_info);
1072int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
1073 enum qeth_ipa_isolation_modes mode);
1074
1075unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1076int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1077 struct sk_buff *skb, struct qeth_hdr *hdr,
1078 unsigned int offset, unsigned int hd_len,
1079 int elements_needed);
1080int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1081void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1082int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1083int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1084void qeth_trace_features(struct qeth_card *);
1085int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1086int qeth_setup_netdev(struct qeth_card *card);
1087int qeth_set_features(struct net_device *, netdev_features_t);
1088void qeth_enable_hw_features(struct net_device *dev);
1089netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1090netdev_features_t qeth_features_check(struct sk_buff *skb,
1091 struct net_device *dev,
1092 netdev_features_t features);
1093void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1094int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count);
1095u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1096 u8 cast_type, struct net_device *sb_dev);
1097int qeth_open(struct net_device *dev);
1098int qeth_stop(struct net_device *dev);
1099
1100int qeth_vm_request_mac(struct qeth_card *card);
1101int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1102 struct qeth_qdio_out_q *queue, int ipv,
1103 void (*fill_header)(struct qeth_qdio_out_q *queue,
1104 struct qeth_hdr *hdr, struct sk_buff *skb,
1105 int ipv, unsigned int data_len));
1106
1107/* exports for OSN */
1108int qeth_osn_assist(struct net_device *, void *, int);
1109int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1110 int (*assist_cb)(struct net_device *, void *),
1111 int (*data_cb)(struct sk_buff *));
1112void qeth_osn_deregister(struct net_device *);
1113
1114#endif /* __QETH_CORE_H__ */
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2007
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
8 */
9
10#ifndef __QETH_CORE_H__
11#define __QETH_CORE_H__
12
13#include <linux/if.h>
14#include <linux/if_arp.h>
15#include <linux/etherdevice.h>
16#include <linux/if_vlan.h>
17#include <linux/ctype.h>
18#include <linux/in6.h>
19#include <linux/bitops.h>
20#include <linux/seq_file.h>
21#include <linux/ethtool.h>
22#include <linux/hashtable.h>
23#include <linux/ip.h>
24#include <linux/refcount.h>
25
26#include <net/ipv6.h>
27#include <net/if_inet6.h>
28#include <net/addrconf.h>
29
30#include <asm/debug.h>
31#include <asm/qdio.h>
32#include <asm/ccwdev.h>
33#include <asm/ccwgroup.h>
34#include <asm/sysinfo.h>
35
36#include "qeth_core_mpc.h"
37
38/**
39 * Debug Facility stuff
40 */
41enum qeth_dbf_names {
42 QETH_DBF_SETUP,
43 QETH_DBF_MSG,
44 QETH_DBF_CTRL,
45 QETH_DBF_INFOS /* must be last element */
46};
47
48struct qeth_dbf_info {
49 char name[DEBUG_MAX_NAME_LEN];
50 int pages;
51 int areas;
52 int len;
53 int level;
54 struct debug_view *view;
55 debug_info_t *id;
56};
57
58#define QETH_DBF_CTRL_LEN 256
59
60#define QETH_DBF_TEXT(name, level, text) \
61 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
62
63#define QETH_DBF_HEX(name, level, addr, len) \
64 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
65
66#define QETH_DBF_MESSAGE(level, text...) \
67 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
68
69#define QETH_DBF_TEXT_(name, level, text...) \
70 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
71
72#define QETH_CARD_TEXT(card, level, text) \
73 debug_text_event(card->debug, level, text)
74
75#define QETH_CARD_HEX(card, level, addr, len) \
76 debug_event(card->debug, level, (void *)(addr), len)
77
78#define QETH_CARD_MESSAGE(card, text...) \
79 debug_sprintf_event(card->debug, level, text)
80
81#define QETH_CARD_TEXT_(card, level, text...) \
82 qeth_dbf_longtext(card->debug, level, text)
83
84#define SENSE_COMMAND_REJECT_BYTE 0
85#define SENSE_COMMAND_REJECT_FLAG 0x80
86#define SENSE_RESETTING_EVENT_BYTE 1
87#define SENSE_RESETTING_EVENT_FLAG 0x80
88
89/*
90 * Common IO related definitions
91 */
92#define CARD_RDEV(card) card->read.ccwdev
93#define CARD_WDEV(card) card->write.ccwdev
94#define CARD_DDEV(card) card->data.ccwdev
95#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
96#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
97#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
98#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
99#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
100
101/**
102 * card stuff
103 */
104struct qeth_perf_stats {
105 unsigned int bufs_rec;
106 unsigned int bufs_sent;
107
108 unsigned int skbs_sent_pack;
109 unsigned int bufs_sent_pack;
110
111 unsigned int sc_dp_p;
112 unsigned int sc_p_dp;
113 /* qdio_cq_handler: number of times called, time spent in */
114 __u64 cq_start_time;
115 unsigned int cq_cnt;
116 unsigned int cq_time;
117 /* qdio_input_handler: number of times called, time spent in */
118 __u64 inbound_start_time;
119 unsigned int inbound_cnt;
120 unsigned int inbound_time;
121 /* qeth_send_packet: number of times called, time spent in */
122 __u64 outbound_start_time;
123 unsigned int outbound_cnt;
124 unsigned int outbound_time;
125 /* qdio_output_handler: number of times called, time spent in */
126 __u64 outbound_handler_start_time;
127 unsigned int outbound_handler_cnt;
128 unsigned int outbound_handler_time;
129 /* number of calls to and time spent in do_QDIO for inbound queue */
130 __u64 inbound_do_qdio_start_time;
131 unsigned int inbound_do_qdio_cnt;
132 unsigned int inbound_do_qdio_time;
133 /* number of calls to and time spent in do_QDIO for outbound queues */
134 __u64 outbound_do_qdio_start_time;
135 unsigned int outbound_do_qdio_cnt;
136 unsigned int outbound_do_qdio_time;
137 unsigned int large_send_bytes;
138 unsigned int large_send_cnt;
139 unsigned int sg_skbs_sent;
140 unsigned int sg_frags_sent;
141 /* initial values when measuring starts */
142 unsigned long initial_rx_packets;
143 unsigned long initial_tx_packets;
144 /* inbound scatter gather data */
145 unsigned int sg_skbs_rx;
146 unsigned int sg_frags_rx;
147 unsigned int sg_alloc_page_rx;
148 unsigned int tx_csum;
149 unsigned int tx_lin;
150 unsigned int tx_linfail;
151};
152
153/* Routing stuff */
154struct qeth_routing_info {
155 enum qeth_routing_types type;
156};
157
158/* IPA stuff */
159struct qeth_ipa_info {
160 __u32 supported_funcs;
161 __u32 enabled_funcs;
162};
163
164/* SETBRIDGEPORT stuff */
165enum qeth_sbp_roles {
166 QETH_SBP_ROLE_NONE = 0,
167 QETH_SBP_ROLE_PRIMARY = 1,
168 QETH_SBP_ROLE_SECONDARY = 2,
169};
170
171enum qeth_sbp_states {
172 QETH_SBP_STATE_INACTIVE = 0,
173 QETH_SBP_STATE_STANDBY = 1,
174 QETH_SBP_STATE_ACTIVE = 2,
175};
176
177#define QETH_SBP_HOST_NOTIFICATION 1
178
179struct qeth_sbp_info {
180 __u32 supported_funcs;
181 enum qeth_sbp_roles role;
182 __u32 hostnotification:1;
183 __u32 reflect_promisc:1;
184 __u32 reflect_promisc_primary:1;
185};
186
187struct qeth_vnicc_info {
188 /* supported/currently configured VNICCs; updated in IPA exchanges */
189 u32 sup_chars;
190 u32 cur_chars;
191 /* supported commands: bitmasks which VNICCs support respective cmd */
192 u32 set_char_sup;
193 u32 getset_timeout_sup;
194 /* timeout value for the learning characteristic */
195 u32 learning_timeout;
196 /* characteristics wanted/configured by user */
197 u32 wanted_chars;
198 /* has user explicitly enabled rx_bcast while online? */
199 bool rx_bcast_enabled;
200};
201
202static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
203 enum qeth_ipa_funcs func)
204{
205 return (ipa->supported_funcs & func);
206}
207
208static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
209 enum qeth_ipa_funcs func)
210{
211 return (ipa->supported_funcs & ipa->enabled_funcs & func);
212}
213
214#define qeth_adp_supported(c, f) \
215 qeth_is_ipa_supported(&c->options.adp, f)
216#define qeth_adp_enabled(c, f) \
217 qeth_is_ipa_enabled(&c->options.adp, f)
218#define qeth_is_supported(c, f) \
219 qeth_is_ipa_supported(&c->options.ipa4, f)
220#define qeth_is_enabled(c, f) \
221 qeth_is_ipa_enabled(&c->options.ipa4, f)
222#define qeth_is_supported6(c, f) \
223 qeth_is_ipa_supported(&c->options.ipa6, f)
224#define qeth_is_enabled6(c, f) \
225 qeth_is_ipa_enabled(&c->options.ipa6, f)
226#define qeth_is_ipafunc_supported(c, prot, f) \
227 ((prot == QETH_PROT_IPV6) ? \
228 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
229#define qeth_is_ipafunc_enabled(c, prot, f) \
230 ((prot == QETH_PROT_IPV6) ? \
231 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
232
233#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
234#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
235
236#define QETH_BUFSIZE 4096
237
238/**
239 * some more defs
240 */
241#define QETH_TX_TIMEOUT 100 * HZ
242#define QETH_RCD_TIMEOUT 60 * HZ
243#define QETH_RECLAIM_WORK_TIME HZ
244#define QETH_MAX_PORTNO 15
245
246/*IPv6 address autoconfiguration stuff*/
247#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
248#define UNIQUE_ID_NOT_BY_CARD 0x10000
249
250/*****************************************************************************/
251/* QDIO queue and buffer handling */
252/*****************************************************************************/
253#define QETH_MAX_QUEUES 4
254#define QETH_IN_BUF_SIZE_DEFAULT 65536
255#define QETH_IN_BUF_COUNT_DEFAULT 64
256#define QETH_IN_BUF_COUNT_HSDEFAULT 128
257#define QETH_IN_BUF_COUNT_MIN 8
258#define QETH_IN_BUF_COUNT_MAX 128
259#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
260#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
261 ((card)->qdio.in_buf_pool.buf_count / 2)
262
263/* buffers we have to be behind before we get a PCI */
264#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
265/*enqueued free buffers left before we get a PCI*/
266#define QETH_PCI_THRESHOLD_B(card) 0
267/*not used unless the microcode gets patched*/
268#define QETH_PCI_TIMER_VALUE(card) 3
269
270/* priority queing */
271#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
272#define QETH_DEFAULT_QUEUE 2
273#define QETH_NO_PRIO_QUEUEING 0
274#define QETH_PRIO_Q_ING_PREC 1
275#define QETH_PRIO_Q_ING_TOS 2
276#define QETH_PRIO_Q_ING_SKB 3
277#define QETH_PRIO_Q_ING_VLAN 4
278
279/* Packing */
280#define QETH_LOW_WATERMARK_PACK 2
281#define QETH_HIGH_WATERMARK_PACK 5
282#define QETH_WATERMARK_PACK_FUZZ 1
283
284/* large receive scatter gather copy break */
285#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
286#define QETH_RX_PULL_LEN 256
287
288struct qeth_hdr_layer3 {
289 __u8 id;
290 __u8 flags;
291 __u16 inbound_checksum; /*TSO:__u16 seqno */
292 __u32 token; /*TSO: __u32 reserved */
293 __u16 length;
294 __u8 vlan_prio;
295 __u8 ext_flags;
296 __u16 vlan_id;
297 __u16 frame_offset;
298 union {
299 /* TX: */
300 u8 ipv6_addr[16];
301 struct ipv4 {
302 u8 res[12];
303 u32 addr;
304 } ipv4;
305 /* RX: */
306 struct rx {
307 u8 res1[2];
308 u8 src_mac[6];
309 u8 res2[4];
310 u16 vlan_id;
311 u8 res3[2];
312 } rx;
313 } next_hop;
314};
315
316struct qeth_hdr_layer2 {
317 __u8 id;
318 __u8 flags[3];
319 __u8 port_no;
320 __u8 hdr_length;
321 __u16 pkt_length;
322 __u16 seq_no;
323 __u16 vlan_id;
324 __u32 reserved;
325 __u8 reserved2[16];
326} __attribute__ ((packed));
327
328struct qeth_hdr_osn {
329 __u8 id;
330 __u8 reserved;
331 __u16 seq_no;
332 __u16 reserved2;
333 __u16 control_flags;
334 __u16 pdu_length;
335 __u8 reserved3[18];
336 __u32 ccid;
337} __attribute__ ((packed));
338
339struct qeth_hdr {
340 union {
341 struct qeth_hdr_layer2 l2;
342 struct qeth_hdr_layer3 l3;
343 struct qeth_hdr_osn osn;
344 } hdr;
345} __attribute__ ((packed));
346
347/*TCP Segmentation Offload header*/
348struct qeth_hdr_ext_tso {
349 __u16 hdr_tot_len;
350 __u8 imb_hdr_no;
351 __u8 reserved;
352 __u8 hdr_type;
353 __u8 hdr_version;
354 __u16 hdr_len;
355 __u32 payload_len;
356 __u16 mss;
357 __u16 dg_hdr_len;
358 __u8 padding[16];
359} __attribute__ ((packed));
360
361struct qeth_hdr_tso {
362 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
363 struct qeth_hdr_ext_tso ext;
364} __attribute__ ((packed));
365
366
367/* flags for qeth_hdr.flags */
368#define QETH_HDR_PASSTHRU 0x10
369#define QETH_HDR_IPV6 0x80
370#define QETH_HDR_CAST_MASK 0x07
371enum qeth_cast_flags {
372 QETH_CAST_UNICAST = 0x06,
373 QETH_CAST_MULTICAST = 0x04,
374 QETH_CAST_BROADCAST = 0x05,
375 QETH_CAST_ANYCAST = 0x07,
376 QETH_CAST_NOCAST = 0x00,
377};
378
379enum qeth_layer2_frame_flags {
380 QETH_LAYER2_FLAG_MULTICAST = 0x01,
381 QETH_LAYER2_FLAG_BROADCAST = 0x02,
382 QETH_LAYER2_FLAG_UNICAST = 0x04,
383 QETH_LAYER2_FLAG_VLAN = 0x10,
384};
385
386enum qeth_header_ids {
387 QETH_HEADER_TYPE_LAYER3 = 0x01,
388 QETH_HEADER_TYPE_LAYER2 = 0x02,
389 QETH_HEADER_TYPE_TSO = 0x03,
390 QETH_HEADER_TYPE_OSN = 0x04,
391};
392/* flags for qeth_hdr.ext_flags */
393#define QETH_HDR_EXT_VLAN_FRAME 0x01
394#define QETH_HDR_EXT_TOKEN_ID 0x02
395#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
396#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
397#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
398#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
399#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
400
401enum qeth_qdio_buffer_states {
402 /*
403 * inbound: read out by driver; owned by hardware in order to be filled
404 * outbound: owned by driver in order to be filled
405 */
406 QETH_QDIO_BUF_EMPTY,
407 /*
408 * inbound: filled by hardware; owned by driver in order to be read out
409 * outbound: filled by driver; owned by hardware in order to be sent
410 */
411 QETH_QDIO_BUF_PRIMED,
412 /*
413 * inbound: not applicable
414 * outbound: identified to be pending in TPQ
415 */
416 QETH_QDIO_BUF_PENDING,
417 /*
418 * inbound: not applicable
419 * outbound: found in completion queue
420 */
421 QETH_QDIO_BUF_IN_CQ,
422 /*
423 * inbound: not applicable
424 * outbound: handled via transfer pending / completion queue
425 */
426 QETH_QDIO_BUF_HANDLED_DELAYED,
427};
428
429enum qeth_qdio_info_states {
430 QETH_QDIO_UNINITIALIZED,
431 QETH_QDIO_ALLOCATED,
432 QETH_QDIO_ESTABLISHED,
433 QETH_QDIO_CLEANING
434};
435
436struct qeth_buffer_pool_entry {
437 struct list_head list;
438 struct list_head init_list;
439 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
440};
441
442struct qeth_qdio_buffer_pool {
443 struct list_head entry_list;
444 int buf_count;
445};
446
447struct qeth_qdio_buffer {
448 struct qdio_buffer *buffer;
449 /* the buffer pool entry currently associated to this buffer */
450 struct qeth_buffer_pool_entry *pool_entry;
451 struct sk_buff *rx_skb;
452};
453
454struct qeth_qdio_q {
455 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
456 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
457 int next_buf_to_init;
458};
459
460struct qeth_qdio_out_buffer {
461 struct qdio_buffer *buffer;
462 atomic_t state;
463 int next_element_to_fill;
464 struct sk_buff_head skb_list;
465 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
466
467 struct qaob *aob;
468 struct qeth_qdio_out_q *q;
469 struct qeth_qdio_out_buffer *next_pending;
470};
471
472struct qeth_card;
473
474enum qeth_out_q_states {
475 QETH_OUT_Q_UNLOCKED,
476 QETH_OUT_Q_LOCKED,
477 QETH_OUT_Q_LOCKED_FLUSH,
478};
479
480struct qeth_qdio_out_q {
481 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
482 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
483 struct qdio_outbuf_state *bufstates; /* convenience pointer */
484 int queue_no;
485 struct qeth_card *card;
486 atomic_t state;
487 int do_pack;
488 /*
489 * index of buffer to be filled by driver; state EMPTY or PACKING
490 */
491 int next_buf_to_fill;
492 /*
493 * number of buffers that are currently filled (PRIMED)
494 * -> these buffers are hardware-owned
495 */
496 atomic_t used_buffers;
497 /* indicates whether PCI flag must be set (or if one is outstanding) */
498 atomic_t set_pci_flags_count;
499};
500
501struct qeth_qdio_info {
502 atomic_t state;
503 /* input */
504 int no_in_queues;
505 struct qeth_qdio_q *in_q;
506 struct qeth_qdio_q *c_q;
507 struct qeth_qdio_buffer_pool in_buf_pool;
508 struct qeth_qdio_buffer_pool init_pool;
509 int in_buf_size;
510
511 /* output */
512 int no_out_queues;
513 struct qeth_qdio_out_q **out_qs;
514 struct qdio_outbuf_state *out_bufstates;
515
516 /* priority queueing */
517 int do_prio_queueing;
518 int default_out_queue;
519};
520
521/**
522 * buffer stuff for read channel
523 */
524#define QETH_CMD_BUFFER_NO 8
525
526/**
527 * channel state machine
528 */
529enum qeth_channel_states {
530 CH_STATE_UP,
531 CH_STATE_DOWN,
532 CH_STATE_ACTIVATING,
533 CH_STATE_HALTED,
534 CH_STATE_STOPPED,
535 CH_STATE_RCD,
536 CH_STATE_RCD_DONE,
537};
538/**
539 * card state machine
540 */
541enum qeth_card_states {
542 CARD_STATE_DOWN,
543 CARD_STATE_HARDSETUP,
544 CARD_STATE_SOFTSETUP,
545 CARD_STATE_UP,
546 CARD_STATE_RECOVER,
547};
548
549/**
550 * Protocol versions
551 */
552enum qeth_prot_versions {
553 QETH_PROT_IPV4 = 0x0004,
554 QETH_PROT_IPV6 = 0x0006,
555};
556
557enum qeth_cmd_buffer_state {
558 BUF_STATE_FREE,
559 BUF_STATE_LOCKED,
560};
561
562enum qeth_cq {
563 QETH_CQ_DISABLED = 0,
564 QETH_CQ_ENABLED = 1,
565 QETH_CQ_NOTAVAILABLE = 2,
566};
567
568struct qeth_ipato {
569 bool enabled;
570 bool invert4;
571 bool invert6;
572 struct list_head entries;
573};
574
575struct qeth_channel;
576
577struct qeth_cmd_buffer {
578 enum qeth_cmd_buffer_state state;
579 struct qeth_channel *channel;
580 unsigned char *data;
581 int rc;
582 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
583};
584
585static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
586{
587 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
588}
589
590/**
591 * definition of a qeth channel, used for read and write
592 */
593struct qeth_channel {
594 enum qeth_channel_states state;
595 struct ccw1 ccw;
596 spinlock_t iob_lock;
597 wait_queue_head_t wait_q;
598 struct ccw_device *ccwdev;
599/*command buffer for control data*/
600 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
601 atomic_t irq_pending;
602 int io_buf_no;
603};
604
605/**
606 * OSA card related definitions
607 */
608struct qeth_token {
609 __u32 issuer_rm_w;
610 __u32 issuer_rm_r;
611 __u32 cm_filter_w;
612 __u32 cm_filter_r;
613 __u32 cm_connection_w;
614 __u32 cm_connection_r;
615 __u32 ulp_filter_w;
616 __u32 ulp_filter_r;
617 __u32 ulp_connection_w;
618 __u32 ulp_connection_r;
619};
620
621struct qeth_seqno {
622 __u32 trans_hdr;
623 __u32 pdu_hdr;
624 __u32 pdu_hdr_ack;
625 __u16 ipa;
626 __u32 pkt_seqno;
627};
628
629struct qeth_reply {
630 struct list_head list;
631 wait_queue_head_t wait_q;
632 int (*callback)(struct qeth_card *, struct qeth_reply *,
633 unsigned long);
634 u32 seqno;
635 unsigned long offset;
636 atomic_t received;
637 int rc;
638 void *param;
639 struct qeth_card *card;
640 refcount_t refcnt;
641};
642
643struct qeth_card_blkt {
644 int time_total;
645 int inter_packet;
646 int inter_packet_jumbo;
647};
648
649#define QETH_BROADCAST_WITH_ECHO 0x01
650#define QETH_BROADCAST_WITHOUT_ECHO 0x02
651#define QETH_LAYER2_MAC_READ 0x01
652#define QETH_LAYER2_MAC_REGISTERED 0x02
653struct qeth_card_info {
654 unsigned short unit_addr2;
655 unsigned short cula;
656 unsigned short chpid;
657 __u16 func_level;
658 char mcl_level[QETH_MCL_LENGTH + 1];
659 int guestlan;
660 int mac_bits;
661 int portno;
662 enum qeth_card_types type;
663 enum qeth_link_types link_type;
664 int is_multicast_different;
665 int initial_mtu;
666 int max_mtu;
667 int broadcast_capable;
668 int unique_id;
669 bool layer_enforced;
670 struct qeth_card_blkt blkt;
671 enum qeth_ipa_promisc_modes promisc_mode;
672 __u32 diagass_support;
673 __u32 hwtrap;
674};
675
676struct qeth_card_options {
677 struct qeth_routing_info route4;
678 struct qeth_ipa_info ipa4;
679 struct qeth_ipa_info adp; /*Adapter parameters*/
680 struct qeth_routing_info route6;
681 struct qeth_ipa_info ipa6;
682 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
683 struct qeth_vnicc_info vnicc; /* VNICC options */
684 int fake_broadcast;
685 int layer2;
686 int performance_stats;
687 int rx_sg_cb;
688 enum qeth_ipa_isolation_modes isolation;
689 enum qeth_ipa_isolation_modes prev_isolation;
690 int sniffer;
691 enum qeth_cq cq;
692 char hsuid[9];
693};
694
695/*
696 * thread bits for qeth_card thread masks
697 */
698enum qeth_threads {
699 QETH_RECOVER_THREAD = 1,
700};
701
702struct qeth_osn_info {
703 int (*assist_cb)(struct net_device *dev, void *data);
704 int (*data_cb)(struct sk_buff *skb);
705};
706
707enum qeth_discipline_id {
708 QETH_DISCIPLINE_UNDETERMINED = -1,
709 QETH_DISCIPLINE_LAYER3 = 0,
710 QETH_DISCIPLINE_LAYER2 = 1,
711};
712
713struct qeth_discipline {
714 const struct device_type *devtype;
715 void (*start_poll)(struct ccw_device *, int, unsigned long);
716 qdio_handler_t *input_handler;
717 qdio_handler_t *output_handler;
718 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
719 int (*recover)(void *ptr);
720 int (*setup) (struct ccwgroup_device *);
721 void (*remove) (struct ccwgroup_device *);
722 int (*set_online) (struct ccwgroup_device *);
723 int (*set_offline) (struct ccwgroup_device *);
724 int (*freeze)(struct ccwgroup_device *);
725 int (*thaw) (struct ccwgroup_device *);
726 int (*restore)(struct ccwgroup_device *);
727 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
728 int (*control_event_handler)(struct qeth_card *card,
729 struct qeth_ipa_cmd *cmd);
730};
731
732struct qeth_vlan_vid {
733 struct list_head list;
734 unsigned short vid;
735};
736
737enum qeth_addr_disposition {
738 QETH_DISP_ADDR_DELETE = 0,
739 QETH_DISP_ADDR_DO_NOTHING = 1,
740 QETH_DISP_ADDR_ADD = 2,
741};
742
743struct qeth_rx {
744 int b_count;
745 int b_index;
746 struct qdio_buffer_element *b_element;
747 int e_offset;
748 int qdio_err;
749};
750
751struct carrier_info {
752 __u8 card_type;
753 __u16 port_mode;
754 __u32 port_speed;
755};
756
757struct qeth_switch_info {
758 __u32 capabilities;
759 __u32 settings;
760};
761
762#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
763
764struct qeth_card {
765 struct list_head list;
766 enum qeth_card_states state;
767 int lan_online;
768 spinlock_t lock;
769 struct ccwgroup_device *gdev;
770 struct qeth_channel read;
771 struct qeth_channel write;
772 struct qeth_channel data;
773
774 struct net_device *dev;
775 struct net_device_stats stats;
776
777 struct qeth_card_info info;
778 struct qeth_token token;
779 struct qeth_seqno seqno;
780 struct qeth_card_options options;
781
782 wait_queue_head_t wait_q;
783 spinlock_t vlanlock;
784 spinlock_t mclock;
785 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
786 struct list_head vid_list;
787 DECLARE_HASHTABLE(mac_htable, 4);
788 DECLARE_HASHTABLE(ip_htable, 4);
789 DECLARE_HASHTABLE(ip_mc_htable, 4);
790 struct work_struct kernel_thread_starter;
791 spinlock_t thread_mask_lock;
792 unsigned long thread_start_mask;
793 unsigned long thread_allowed_mask;
794 unsigned long thread_running_mask;
795 struct task_struct *recovery_task;
796 spinlock_t ip_lock;
797 struct qeth_ipato ipato;
798 struct list_head cmd_waiter_list;
799 /* QDIO buffer handling */
800 struct qeth_qdio_info qdio;
801 struct qeth_perf_stats perf_stats;
802 int read_or_write_problem;
803 struct qeth_osn_info osn_info;
804 struct qeth_discipline *discipline;
805 atomic_t force_alloc_skb;
806 struct service_level qeth_service_level;
807 struct qdio_ssqd_desc ssqd;
808 debug_info_t *debug;
809 struct mutex conf_mutex;
810 struct mutex discipline_mutex;
811 struct napi_struct napi;
812 struct qeth_rx rx;
813 struct delayed_work buffer_reclaim_work;
814 int reclaim_index;
815 struct work_struct close_dev_work;
816};
817
818struct qeth_card_list_struct {
819 struct list_head list;
820 rwlock_t rwlock;
821};
822
823struct qeth_trap_id {
824 __u16 lparnr;
825 char vmname[8];
826 __u8 chpid;
827 __u8 ssid;
828 __u16 devno;
829} __packed;
830
831/*some helper functions*/
832#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
833
834/**
835 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
836 * @start: Start of the address range.
837 * @end: Address after the end of the range.
838 *
839 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
840 * the specified address range.
841 */
842static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
843{
844 return PFN_UP(end) - PFN_DOWN(start);
845}
846
847static inline int qeth_get_micros(void)
848{
849 return (int) (get_tod_clock() >> 12);
850}
851
852static inline int qeth_get_ip_version(struct sk_buff *skb)
853{
854 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
855 __be16 prot = veth->h_vlan_proto;
856
857 if (prot == htons(ETH_P_8021Q))
858 prot = veth->h_vlan_encapsulated_proto;
859
860 switch (prot) {
861 case htons(ETH_P_IPV6):
862 return 6;
863 case htons(ETH_P_IP):
864 return 4;
865 default:
866 return 0;
867 }
868}
869
870static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
871 struct qeth_buffer_pool_entry *entry)
872{
873 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
874}
875
876static inline int qeth_is_diagass_supported(struct qeth_card *card,
877 enum qeth_diags_cmds cmd)
878{
879 return card->info.diagass_support & (__u32)cmd;
880}
881
882extern struct qeth_discipline qeth_l2_discipline;
883extern struct qeth_discipline qeth_l3_discipline;
884extern const struct attribute_group *qeth_generic_attr_groups[];
885extern const struct attribute_group *qeth_osn_attr_groups[];
886extern const struct attribute_group qeth_device_attr_group;
887extern const struct attribute_group qeth_device_blkt_group;
888extern const struct device_type qeth_generic_devtype;
889extern struct workqueue_struct *qeth_wq;
890
891int qeth_card_hw_is_reachable(struct qeth_card *);
892const char *qeth_get_cardname_short(struct qeth_card *);
893int qeth_realloc_buffer_pool(struct qeth_card *, int);
894int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
895void qeth_core_free_discipline(struct qeth_card *);
896
897/* exports for qeth discipline device drivers */
898extern struct qeth_card_list_struct qeth_core_card_list;
899extern struct kmem_cache *qeth_core_header_cache;
900extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
901
902void qeth_set_recovery_task(struct qeth_card *);
903void qeth_clear_recovery_task(struct qeth_card *);
904void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
905int qeth_threads_running(struct qeth_card *, unsigned long);
906int qeth_wait_for_threads(struct qeth_card *, unsigned long);
907int qeth_do_run_thread(struct qeth_card *, unsigned long);
908void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
909void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
910int qeth_core_hardsetup_card(struct qeth_card *);
911void qeth_print_status_message(struct qeth_card *);
912int qeth_init_qdio_queues(struct qeth_card *);
913int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
914 int (*reply_cb)
915 (struct qeth_card *, struct qeth_reply *, unsigned long),
916 void *);
917struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
918 enum qeth_ipa_cmds, enum qeth_prot_versions);
919int qeth_query_setadapterparms(struct qeth_card *);
920struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
921 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
922 struct qeth_hdr **);
923void qeth_schedule_recovery(struct qeth_card *);
924void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
925int qeth_poll(struct napi_struct *napi, int budget);
926void qeth_qdio_input_handler(struct ccw_device *,
927 unsigned int, unsigned int, int,
928 int, unsigned long);
929void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
930 int, int, int, unsigned long);
931void qeth_clear_ipacmd_list(struct qeth_card *);
932int qeth_qdio_clear_card(struct qeth_card *, int);
933void qeth_clear_working_pool_list(struct qeth_card *);
934void qeth_clear_cmd_buffers(struct qeth_channel *);
935void qeth_clear_qdio_buffers(struct qeth_card *);
936void qeth_setadp_promisc_mode(struct qeth_card *);
937struct net_device_stats *qeth_get_stats(struct net_device *);
938int qeth_change_mtu(struct net_device *, int);
939int qeth_setadpparms_change_macaddr(struct qeth_card *);
940void qeth_tx_timeout(struct net_device *);
941void qeth_prepare_control_data(struct qeth_card *, int,
942 struct qeth_cmd_buffer *);
943void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
944void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
945struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
946int qeth_query_switch_attributes(struct qeth_card *card,
947 struct qeth_switch_info *sw_info);
948int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
949 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
950 void *reply_param);
951int qeth_bridgeport_query_ports(struct qeth_card *card,
952 enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
953int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
954int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
955int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
956int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb,
957 int extra_elems, int data_offset);
958int qeth_get_elements_for_frags(struct sk_buff *);
959int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
960 struct qeth_hdr *hdr, unsigned int offset,
961 unsigned int hd_len);
962int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
963 struct sk_buff *skb, struct qeth_hdr *hdr,
964 unsigned int offset, unsigned int hd_len,
965 int elements_needed);
966int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
967int qeth_core_get_sset_count(struct net_device *, int);
968void qeth_core_get_ethtool_stats(struct net_device *,
969 struct ethtool_stats *, u64 *);
970void qeth_core_get_strings(struct net_device *, u32, u8 *);
971void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
972void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
973int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev,
974 struct ethtool_link_ksettings *cmd);
975int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
976int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
977int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
978int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
979int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
980void qeth_trace_features(struct qeth_card *);
981void qeth_close_dev(struct qeth_card *);
982int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
983 __u16, long);
984int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
985 long,
986 int (*reply_cb)(struct qeth_card *,
987 struct qeth_reply *, unsigned long),
988 void *);
989int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
990struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
991 enum qeth_ipa_funcs,
992 __u16, __u16,
993 enum qeth_prot_versions);
994int qeth_set_features(struct net_device *, netdev_features_t);
995void qeth_recover_features(struct net_device *dev);
996netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
997netdev_features_t qeth_features_check(struct sk_buff *skb,
998 struct net_device *dev,
999 netdev_features_t features);
1000int qeth_vm_request_mac(struct qeth_card *card);
1001int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len);
1002
1003/* exports for OSN */
1004int qeth_osn_assist(struct net_device *, void *, int);
1005int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1006 int (*assist_cb)(struct net_device *, void *),
1007 int (*data_cb)(struct sk_buff *));
1008void qeth_osn_deregister(struct net_device *);
1009
1010#endif /* __QETH_CORE_H__ */