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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
53
54enum qeth_dbf_names {
55 QETH_DBF_SETUP,
56 QETH_DBF_MSG,
57 QETH_DBF_CTRL,
58 QETH_DBF_INFOS
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
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
128struct qeth_routing_info {
129 enum qeth_routing_types type;
130};
131
132
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
157 u32 sup_chars;
158 u32 cur_chars;
159
160 u32 set_char_sup;
161 u32 getset_timeout_sup;
162
163 u32 learning_timeout;
164
165 u32 wanted_chars;
166
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
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
187
188#define QETH_MAX_OUT_QUEUES 4
189#define QETH_IQD_MIN_TXQ 2
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
205#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
206
207#define QETH_PCI_THRESHOLD_B(card) 0
208
209#define QETH_PCI_TIMER_VALUE(card) 3
210
211
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
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;
230 __u32 token;
231 __u16 length;
232 __u8 vlan_prio;
233 __u8 ext_flags;
234 __u16 vlan_id;
235 __u16 frame_offset;
236 union {
237
238 struct in6_addr addr;
239
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
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;
297 struct qeth_hdr_ext_tso ext;
298} __attribute__ ((packed));
299
300
301
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
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
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
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
397 QETH_QDIO_BUF_EMPTY,
398
399 QETH_QDIO_BUF_PRIMED,
400
401 QETH_QDIO_BUF_PENDING,
402
403 QETH_QDIO_BUF_IN_CQ,
404
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
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
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;
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
497
498
499 atomic_t used_buffers;
500
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
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
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
552 int do_prio_queueing;
553 int default_out_queue;
554};
555
556
557
558
559enum qeth_channel_states {
560 CH_STATE_UP,
561 CH_STATE_DOWN,
562 CH_STATE_HALTED,
563 CH_STATE_STOPPED,
564};
565
566
567
568enum qeth_card_states {
569 CARD_STATE_DOWN,
570 CARD_STATE_SOFTSETUP,
571};
572
573
574
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
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
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;
720 struct qeth_sbp_info sbp;
721 struct qeth_vnicc_info vnicc;
722 enum qeth_discipline_id layer;
723 enum qeth_ipa_isolation_modes isolation;
724 enum qeth_ipa_isolation_modes prev_isolation;
725 int sniffer;
726 enum qeth_cq cq;
727 char hsuid[9];
728};
729
730#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
731#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
732
733
734
735
736enum qeth_threads {
737 QETH_RECOVER_THREAD = 1,
738};
739
740struct qeth_osn_info {
741 int (*assist_cb)(struct net_device *dev, void *data);
742 int (*data_cb)(struct sk_buff *skb);
743};
744
745struct qeth_discipline {
746 const struct device_type *devtype;
747 int (*setup) (struct ccwgroup_device *);
748 void (*remove) (struct ccwgroup_device *);
749 int (*set_online)(struct qeth_card *card);
750 void (*set_offline)(struct qeth_card *card);
751 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
752 int (*control_event_handler)(struct qeth_card *card,
753 struct qeth_ipa_cmd *cmd);
754};
755
756enum qeth_addr_disposition {
757 QETH_DISP_ADDR_DELETE = 0,
758 QETH_DISP_ADDR_DO_NOTHING = 1,
759 QETH_DISP_ADDR_ADD = 2,
760};
761
762struct qeth_rx {
763 int b_count;
764 int b_index;
765 u8 buf_element;
766 int e_offset;
767 int qdio_err;
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(mac_htable, 4);
808 DECLARE_HASHTABLE(ip_htable, 4);
809 DECLARE_HASHTABLE(local_addrs4, 4);
810 DECLARE_HASHTABLE(local_addrs6, 4);
811 spinlock_t local_addrs4_lock;
812 spinlock_t local_addrs6_lock;
813 struct mutex ip_lock;
814 DECLARE_HASHTABLE(ip_mc_htable, 4);
815 struct work_struct rx_mode_work;
816 struct work_struct kernel_thread_starter;
817 spinlock_t thread_mask_lock;
818 unsigned long thread_start_mask;
819 unsigned long thread_allowed_mask;
820 unsigned long thread_running_mask;
821 struct qeth_ipato ipato;
822 struct list_head cmd_waiter_list;
823
824 struct qeth_qdio_info qdio;
825 int read_or_write_problem;
826 struct qeth_osn_info osn_info;
827 struct qeth_discipline *discipline;
828 atomic_t force_alloc_skb;
829 struct service_level qeth_service_level;
830 struct qdio_ssqd_desc ssqd;
831 debug_info_t *debug;
832 struct mutex sbp_lock;
833 struct mutex conf_mutex;
834 struct mutex discipline_mutex;
835 struct napi_struct napi;
836 struct qeth_rx rx;
837 struct delayed_work buffer_reclaim_work;
838 int reclaim_index;
839 struct work_struct close_dev_work;
840};
841
842static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
843{
844 return card->state == CARD_STATE_SOFTSETUP;
845}
846
847static inline void qeth_unlock_channel(struct qeth_card *card,
848 struct qeth_channel *channel)
849{
850 atomic_set(&channel->irq_pending, 0);
851 wake_up(&card->wait_q);
852}
853
854struct qeth_trap_id {
855 __u16 lparnr;
856 char vmname[8];
857 __u8 chpid;
858 __u8 ssid;
859 __u16 devno;
860} __packed;
861
862
863#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
864
865static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
866{
867 if (txq == QETH_IQD_MCAST_TXQ)
868 return dev->num_tx_queues - 1;
869 if (txq == dev->num_tx_queues - 1)
870 return QETH_IQD_MCAST_TXQ;
871 return txq;
872}
873
874static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
875 struct qeth_qdio_out_q *queue)
876{
877 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
878 QETH_IQD_MCAST_TXQ;
879}
880
881static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
882 unsigned int elements)
883{
884 unsigned int i;
885
886 for (i = 0; i < elements; i++)
887 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
888 buf->element[14].sflags = 0;
889 buf->element[15].sflags = 0;
890}
891
892
893
894
895
896
897
898
899
900static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
901{
902 return PFN_UP(end) - PFN_DOWN(start);
903}
904
905static inline int qeth_get_ip_version(struct sk_buff *skb)
906{
907 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
908 __be16 prot = veth->h_vlan_proto;
909
910 if (prot == htons(ETH_P_8021Q))
911 prot = veth->h_vlan_encapsulated_proto;
912
913 switch (prot) {
914 case htons(ETH_P_IPV6):
915 return 6;
916 case htons(ETH_P_IP):
917 return 4;
918 default:
919 return 0;
920 }
921}
922
923static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
924{
925 u8 *addr = eth_hdr(skb)->h_dest;
926
927 if (is_multicast_ether_addr(addr))
928 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
929 RTN_MULTICAST;
930 return RTN_UNICAST;
931}
932
933static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv)
934{
935 struct dst_entry *dst = skb_dst(skb);
936 struct rt6_info *rt;
937
938 rt = (struct rt6_info *) dst;
939 if (dst)
940 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
941 return dst;
942}
943
944static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
945 struct dst_entry *dst)
946{
947 struct rtable *rt = (struct rtable *) dst;
948
949 return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
950}
951
952static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
953 struct dst_entry *dst)
954{
955 struct rt6_info *rt = (struct rt6_info *) dst;
956
957 if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
958 return &rt->rt6i_gateway;
959 else
960 return &ipv6_hdr(skb)->daddr;
961}
962
963static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
964{
965 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
966 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
967 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
968 *flags |= QETH_HDR_EXT_UDP;
969}
970
971static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
972 struct qeth_buffer_pool_entry *entry)
973{
974 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
975}
976
977static inline int qeth_is_diagass_supported(struct qeth_card *card,
978 enum qeth_diags_cmds cmd)
979{
980 return card->info.diagass_support & (__u32)cmd;
981}
982
983int qeth_send_simple_setassparms_prot(struct qeth_card *card,
984 enum qeth_ipa_funcs ipa_func,
985 u16 cmd_code, u32 *data,
986 enum qeth_prot_versions prot);
987
988static inline int qeth_send_simple_setassparms(struct qeth_card *card,
989 enum qeth_ipa_funcs ipa_func,
990 u16 cmd_code, u32 *data)
991{
992 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
993 data, QETH_PROT_IPV4);
994}
995
996static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
997 enum qeth_ipa_funcs ipa_func,
998 u16 cmd_code, u32 *data)
999{
1000 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1001 data, QETH_PROT_IPV6);
1002}
1003
1004int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1005
1006extern struct qeth_discipline qeth_l2_discipline;
1007extern struct qeth_discipline qeth_l3_discipline;
1008extern const struct ethtool_ops qeth_ethtool_ops;
1009extern const struct ethtool_ops qeth_osn_ethtool_ops;
1010extern const struct attribute_group *qeth_generic_attr_groups[];
1011extern const struct attribute_group *qeth_osn_attr_groups[];
1012extern const struct attribute_group qeth_device_attr_group;
1013extern const struct attribute_group qeth_device_blkt_group;
1014extern const struct device_type qeth_generic_devtype;
1015
1016const char *qeth_get_cardname_short(struct qeth_card *);
1017int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
1018int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
1019void qeth_core_free_discipline(struct qeth_card *);
1020
1021
1022extern struct kmem_cache *qeth_core_header_cache;
1023extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1024
1025struct net_device *qeth_clone_netdev(struct net_device *orig);
1026struct qeth_card *qeth_get_card_by_busid(char *bus_id);
1027void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
1028int qeth_threads_running(struct qeth_card *, unsigned long);
1029int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok);
1030int qeth_stop_channel(struct qeth_channel *channel);
1031int qeth_set_offline(struct qeth_card *card, bool resetting);
1032
1033void qeth_print_status_message(struct qeth_card *);
1034int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1035 int (*reply_cb)
1036 (struct qeth_card *, struct qeth_reply *, unsigned long),
1037 void *);
1038struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1039 enum qeth_ipa_cmds cmd_code,
1040 enum qeth_prot_versions prot,
1041 unsigned int data_length);
1042struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,
1043 unsigned int length, unsigned int ccws,
1044 long timeout);
1045struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1046 enum qeth_ipa_funcs ipa_func,
1047 u16 cmd_code,
1048 unsigned int data_length,
1049 enum qeth_prot_versions prot);
1050struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1051 enum qeth_diags_cmds sub_cmd,
1052 unsigned int data_length);
1053void qeth_notify_cmd(struct qeth_cmd_buffer *iob, int reason);
1054void qeth_put_cmd(struct qeth_cmd_buffer *iob);
1055
1056int qeth_schedule_recovery(struct qeth_card *card);
1057void qeth_flush_local_addrs(struct qeth_card *card);
1058int qeth_poll(struct napi_struct *napi, int budget);
1059void qeth_clear_ipacmd_list(struct qeth_card *);
1060int qeth_qdio_clear_card(struct qeth_card *, int);
1061void qeth_clear_working_pool_list(struct qeth_card *);
1062void qeth_drain_output_queues(struct qeth_card *card);
1063void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
1064int qeth_setadpparms_change_macaddr(struct qeth_card *);
1065void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
1066void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1067 u16 cmd_length,
1068 bool (*match)(struct qeth_cmd_buffer *iob,
1069 struct qeth_cmd_buffer *reply));
1070int qeth_query_switch_attributes(struct qeth_card *card,
1071 struct qeth_switch_info *sw_info);
1072int qeth_query_card_info(struct qeth_card *card,
1073 struct carrier_info *carrier_info);
1074unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1075int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1076 struct sk_buff *skb, struct qeth_hdr *hdr,
1077 unsigned int offset, unsigned int hd_len,
1078 int elements_needed);
1079int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1080void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1081int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
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
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
1115
