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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 8U
199#define QETH_IN_BUF_COUNT_MAX 128U
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#define QETH_QIB_PQUE_ORDER_RR 0
282#define QETH_QIB_PQUE_UNITS_SBAL 2
283#define QETH_QIB_PQUE_PRIO_DEFAULT 4
284
285struct qeth_qib_parms {
286 char pcit_magic[4];
287 u32 pcit_a;
288 u32 pcit_b;
289 u32 pcit_c;
290 char blkt_magic[4];
291 u32 blkt_total;
292 u32 blkt_inter_packet;
293 u32 blkt_inter_packet_jumbo;
294 char pque_magic[4];
295 u8 pque_order;
296 u8 pque_units;
297 u16 reserved;
298 u32 pque_priority[4];
299};
300
301
302struct qeth_hdr_ext_tso {
303 __u16 hdr_tot_len;
304 __u8 imb_hdr_no;
305 __u8 reserved;
306 __u8 hdr_type;
307 __u8 hdr_version;
308 __u16 hdr_len;
309 __u32 payload_len;
310 __u16 mss;
311 __u16 dg_hdr_len;
312 __u8 padding[16];
313} __attribute__ ((packed));
314
315struct qeth_hdr_tso {
316 struct qeth_hdr hdr;
317 struct qeth_hdr_ext_tso ext;
318} __attribute__ ((packed));
319
320
321
322#define QETH_HDR_PASSTHRU 0x10
323#define QETH_HDR_IPV6 0x80
324#define QETH_HDR_CAST_MASK 0x07
325enum qeth_cast_flags {
326 QETH_CAST_UNICAST = 0x06,
327 QETH_CAST_MULTICAST = 0x04,
328 QETH_CAST_BROADCAST = 0x05,
329 QETH_CAST_ANYCAST = 0x07,
330 QETH_CAST_NOCAST = 0x00,
331};
332
333enum qeth_layer2_frame_flags {
334 QETH_LAYER2_FLAG_MULTICAST = 0x01,
335 QETH_LAYER2_FLAG_BROADCAST = 0x02,
336 QETH_LAYER2_FLAG_UNICAST = 0x04,
337 QETH_LAYER2_FLAG_VLAN = 0x10,
338};
339
340enum qeth_header_ids {
341 QETH_HEADER_TYPE_LAYER3 = 0x01,
342 QETH_HEADER_TYPE_LAYER2 = 0x02,
343 QETH_HEADER_TYPE_L3_TSO = 0x03,
344 QETH_HEADER_TYPE_OSN = 0x04,
345 QETH_HEADER_TYPE_L2_TSO = 0x06,
346 QETH_HEADER_MASK_INVAL = 0x80,
347};
348
349#define QETH_HDR_EXT_VLAN_FRAME 0x01
350#define QETH_HDR_EXT_TOKEN_ID 0x02
351#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
352#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
353#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
354#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
355#define QETH_HDR_EXT_UDP 0x40
356
357static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
358 struct qeth_hdr_layer2 *h2)
359{
360 return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
361 h1->vlan_id == h2->vlan_id;
362}
363
364static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
365 struct qeth_hdr_layer3 *h2)
366{
367 return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
368 h1->vlan_id == h2->vlan_id;
369}
370
371static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
372 struct qeth_hdr_layer3 *h2)
373{
374 return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
375 ipv6_addr_equal(&h1->next_hop.addr, &h2->next_hop.addr);
376}
377
378struct qeth_local_addr {
379 struct hlist_node hnode;
380 struct rcu_head rcu;
381 struct in6_addr addr;
382};
383
384enum qeth_qdio_info_states {
385 QETH_QDIO_UNINITIALIZED,
386 QETH_QDIO_ALLOCATED,
387 QETH_QDIO_ESTABLISHED,
388 QETH_QDIO_CLEANING
389};
390
391struct qeth_buffer_pool_entry {
392 struct list_head list;
393 struct list_head init_list;
394 struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
395};
396
397struct qeth_qdio_buffer_pool {
398 struct list_head entry_list;
399 int buf_count;
400};
401
402struct qeth_qdio_buffer {
403 struct qdio_buffer *buffer;
404
405 struct qeth_buffer_pool_entry *pool_entry;
406 struct sk_buff *rx_skb;
407};
408
409struct qeth_qdio_q {
410 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
411 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
412 int next_buf_to_init;
413};
414
415enum qeth_qdio_out_buffer_state {
416
417 QETH_QDIO_BUF_EMPTY,
418
419 QETH_QDIO_BUF_PRIMED,
420
421 QETH_QDIO_BUF_PENDING,
422
423 QETH_QDIO_BUF_NEED_QAOB,
424
425 QETH_QDIO_BUF_QAOB_OK,
426 QETH_QDIO_BUF_QAOB_ERROR,
427
428 QETH_QDIO_BUF_HANDLED_DELAYED,
429};
430
431struct qeth_qdio_out_buffer {
432 struct qdio_buffer *buffer;
433 atomic_t state;
434 int next_element_to_fill;
435 unsigned int frames;
436 unsigned int bytes;
437 struct sk_buff_head skb_list;
438 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
439
440 struct qeth_qdio_out_q *q;
441 struct qeth_qdio_out_buffer *next_pending;
442};
443
444struct qeth_card;
445
446#define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
447#define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
448
449#define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
450#define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
451
452struct qeth_card_stats {
453 u64 rx_bufs;
454 u64 rx_skb_csum;
455 u64 rx_sg_skbs;
456 u64 rx_sg_frags;
457 u64 rx_sg_alloc_page;
458
459 u64 rx_dropped_nomem;
460 u64 rx_dropped_notsupp;
461 u64 rx_dropped_runt;
462
463
464 u64 rx_packets;
465 u64 rx_bytes;
466 u64 rx_multicast;
467 u64 rx_length_errors;
468 u64 rx_frame_errors;
469 u64 rx_fifo_errors;
470};
471
472struct qeth_out_q_stats {
473 u64 bufs;
474 u64 bufs_pack;
475 u64 buf_elements;
476 u64 skbs_pack;
477 u64 skbs_sg;
478 u64 skbs_csum;
479 u64 skbs_tso;
480 u64 skbs_linearized;
481 u64 skbs_linearized_fail;
482 u64 tso_bytes;
483 u64 packing_mode_switch;
484 u64 stopped;
485 u64 doorbell;
486 u64 coal_frames;
487 u64 completion_yield;
488 u64 completion_timer;
489
490
491 u64 tx_packets;
492 u64 tx_bytes;
493 u64 tx_errors;
494 u64 tx_dropped;
495};
496
497#define QETH_TX_MAX_COALESCED_FRAMES 1
498#define QETH_TX_COALESCE_USECS 25
499#define QETH_TX_TIMER_USECS 500
500
501struct qeth_qdio_out_q {
502 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
503 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
504 struct qdio_outbuf_state *bufstates;
505 struct qeth_out_q_stats stats;
506 spinlock_t lock;
507 unsigned int priority;
508 u8 next_buf_to_fill;
509 u8 max_elements;
510 u8 queue_no;
511 u8 do_pack;
512 struct qeth_card *card;
513
514
515
516
517 atomic_t used_buffers;
518
519 atomic_t set_pci_flags_count;
520 struct napi_struct napi;
521 struct timer_list timer;
522 struct qeth_hdr *prev_hdr;
523 unsigned int coalesced_frames;
524 u8 bulk_start;
525 u8 bulk_count;
526 u8 bulk_max;
527
528 unsigned int coalesce_usecs;
529 unsigned int max_coalesced_frames;
530};
531
532#define qeth_for_each_output_queue(card, q, i) \
533 for (i = 0; i < card->qdio.no_out_queues && \
534 (q = card->qdio.out_qs[i]); i++)
535
536#define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
537
538static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue,
539 unsigned long usecs)
540{
541 timer_reduce(&queue->timer, usecs_to_jiffies(usecs) + jiffies);
542}
543
544static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
545{
546 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
547}
548
549static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
550{
551 return atomic_read(&queue->used_buffers) == 0;
552}
553
554struct qeth_qdio_info {
555 atomic_t state;
556
557 int no_in_queues;
558 struct qeth_qdio_q *in_q;
559 struct qeth_qdio_q *c_q;
560 struct qeth_qdio_buffer_pool in_buf_pool;
561 struct qeth_qdio_buffer_pool init_pool;
562 int in_buf_size;
563
564
565 unsigned int no_out_queues;
566 struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
567 struct qdio_outbuf_state *out_bufstates;
568
569
570 int do_prio_queueing;
571 int default_out_queue;
572};
573
574
575
576
577enum qeth_channel_states {
578 CH_STATE_UP,
579 CH_STATE_DOWN,
580 CH_STATE_HALTED,
581 CH_STATE_STOPPED,
582};
583
584
585
586enum qeth_card_states {
587 CARD_STATE_DOWN,
588 CARD_STATE_SOFTSETUP,
589};
590
591
592
593
594enum qeth_prot_versions {
595 QETH_PROT_NONE = 0x0000,
596 QETH_PROT_IPV4 = 0x0004,
597 QETH_PROT_IPV6 = 0x0006,
598};
599
600enum qeth_cq {
601 QETH_CQ_DISABLED = 0,
602 QETH_CQ_ENABLED = 1,
603 QETH_CQ_NOTAVAILABLE = 2,
604};
605
606struct qeth_ipato {
607 bool enabled;
608 bool invert4;
609 bool invert6;
610 struct list_head entries;
611};
612
613struct qeth_channel {
614 struct ccw_device *ccwdev;
615 struct qeth_cmd_buffer *active_cmd;
616 enum qeth_channel_states state;
617 atomic_t irq_pending;
618};
619
620struct qeth_reply {
621 int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
622 unsigned long data);
623 void *param;
624};
625
626struct qeth_cmd_buffer {
627 struct list_head list;
628 struct completion done;
629 spinlock_t lock;
630 unsigned int length;
631 refcount_t ref_count;
632 struct qeth_channel *channel;
633 struct qeth_reply reply;
634 long timeout;
635 unsigned char *data;
636 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
637 bool (*match)(struct qeth_cmd_buffer *iob,
638 struct qeth_cmd_buffer *reply);
639 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
640 unsigned int data_length);
641 int rc;
642};
643
644static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
645{
646 refcount_inc(&iob->ref_count);
647}
648
649static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob)
650{
651 if (!IS_IPA(iob->data))
652 return NULL;
653
654 return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
655}
656
657static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
658{
659 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
660}
661
662static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
663{
664 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
665}
666
667static inline bool qeth_trylock_channel(struct qeth_channel *channel)
668{
669 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0;
670}
671
672
673
674
675struct qeth_token {
676 __u32 issuer_rm_w;
677 __u32 issuer_rm_r;
678 __u32 cm_filter_w;
679 __u32 cm_filter_r;
680 __u32 cm_connection_w;
681 __u32 cm_connection_r;
682 __u32 ulp_filter_w;
683 __u32 ulp_filter_r;
684 __u32 ulp_connection_w;
685 __u32 ulp_connection_r;
686};
687
688struct qeth_seqno {
689 __u32 trans_hdr;
690 __u32 pdu_hdr;
691 __u32 pdu_hdr_ack;
692 __u16 ipa;
693};
694
695struct qeth_card_blkt {
696 int time_total;
697 int inter_packet;
698 int inter_packet_jumbo;
699};
700
701enum qeth_pnso_mode {
702 QETH_PNSO_NONE,
703 QETH_PNSO_BRIDGEPORT,
704 QETH_PNSO_ADDR_INFO,
705};
706
707#define QETH_BROADCAST_WITH_ECHO 0x01
708#define QETH_BROADCAST_WITHOUT_ECHO 0x02
709struct qeth_card_info {
710 unsigned short unit_addr2;
711 unsigned short cula;
712 __u16 func_level;
713 char mcl_level[QETH_MCL_LENGTH + 1];
714
715 u16 ddev_devno;
716 u8 cssid;
717 u8 iid;
718 u8 ssid;
719 u8 chpid;
720 u16 chid;
721 u8 ids_valid:1;
722 u8 dev_addr_is_registered:1;
723 u8 open_when_online:1;
724 u8 promisc_mode:1;
725 u8 use_v1_blkt:1;
726 u8 is_vm_nic:1;
727
728 u8 has_lp2lp_cso_v6;
729 u8 has_lp2lp_cso_v4;
730 enum qeth_pnso_mode pnso_mode;
731 enum qeth_card_types type;
732 enum qeth_link_types link_type;
733 int broadcast_capable;
734 bool layer_enforced;
735 struct qeth_card_blkt blkt;
736 __u32 diagass_support;
737 __u32 hwtrap;
738};
739
740enum qeth_discipline_id {
741 QETH_DISCIPLINE_UNDETERMINED = -1,
742 QETH_DISCIPLINE_LAYER3 = 0,
743 QETH_DISCIPLINE_LAYER2 = 1,
744};
745
746struct qeth_card_options {
747 struct qeth_ipa_caps ipa4;
748 struct qeth_ipa_caps ipa6;
749 struct qeth_routing_info route4;
750 struct qeth_routing_info route6;
751 struct qeth_ipa_caps adp;
752 struct qeth_sbp_info sbp;
753 struct qeth_vnicc_info vnicc;
754 enum qeth_discipline_id layer;
755 enum qeth_ipa_isolation_modes isolation;
756 int sniffer;
757 enum qeth_cq cq;
758 char hsuid[9];
759};
760
761#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
762#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
763
764
765
766
767enum qeth_threads {
768 QETH_RECOVER_THREAD = 1,
769};
770
771struct qeth_osn_info {
772 int (*assist_cb)(struct net_device *dev, void *data);
773 int (*data_cb)(struct sk_buff *skb);
774};
775
776struct qeth_discipline {
777 const struct device_type *devtype;
778 int (*setup) (struct ccwgroup_device *);
779 void (*remove) (struct ccwgroup_device *);
780 int (*set_online)(struct qeth_card *card, bool carrier_ok);
781 void (*set_offline)(struct qeth_card *card);
782 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
783 int (*control_event_handler)(struct qeth_card *card,
784 struct qeth_ipa_cmd *cmd);
785};
786
787enum qeth_addr_disposition {
788 QETH_DISP_ADDR_DELETE = 0,
789 QETH_DISP_ADDR_DO_NOTHING = 1,
790 QETH_DISP_ADDR_ADD = 2,
791};
792
793struct qeth_rx {
794 int b_count;
795 int b_index;
796 u8 buf_element;
797 int e_offset;
798 int qdio_err;
799 u8 bufs_refill;
800};
801
802struct carrier_info {
803 __u8 card_type;
804 __u16 port_mode;
805 __u32 port_speed;
806};
807
808struct qeth_switch_info {
809 __u32 capabilities;
810 __u32 settings;
811};
812
813struct qeth_priv {
814 unsigned int rx_copybreak;
815 unsigned int tx_wanted_queues;
816 u32 brport_hw_features;
817 u32 brport_features;
818};
819
820#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
821
822struct qeth_card {
823 enum qeth_card_states state;
824 spinlock_t lock;
825 struct ccwgroup_device *gdev;
826 struct qeth_cmd_buffer *read_cmd;
827 struct qeth_channel read;
828 struct qeth_channel write;
829 struct qeth_channel data;
830
831 struct net_device *dev;
832 struct dentry *debugfs;
833 struct qeth_card_stats stats;
834 struct qeth_card_info info;
835 struct qeth_token token;
836 struct qeth_seqno seqno;
837 struct qeth_card_options options;
838
839 struct workqueue_struct *event_wq;
840 struct workqueue_struct *cmd_wq;
841 wait_queue_head_t wait_q;
842
843 struct mutex ip_lock;
844
845 DECLARE_HASHTABLE(ip_htable, 4);
846 struct qeth_ipato ipato;
847
848 DECLARE_HASHTABLE(local_addrs4, 4);
849 DECLARE_HASHTABLE(local_addrs6, 4);
850 spinlock_t local_addrs4_lock;
851 spinlock_t local_addrs6_lock;
852 DECLARE_HASHTABLE(rx_mode_addrs, 4);
853 struct work_struct rx_mode_work;
854 struct work_struct kernel_thread_starter;
855 spinlock_t thread_mask_lock;
856 unsigned long thread_start_mask;
857 unsigned long thread_allowed_mask;
858 unsigned long thread_running_mask;
859 struct list_head cmd_waiter_list;
860
861 struct qeth_qdio_info qdio;
862 int read_or_write_problem;
863 struct qeth_osn_info osn_info;
864 const struct qeth_discipline *discipline;
865 atomic_t force_alloc_skb;
866 struct service_level qeth_service_level;
867 struct qdio_ssqd_desc ssqd;
868 debug_info_t *debug;
869 struct mutex sbp_lock;
870 struct mutex conf_mutex;
871 struct mutex discipline_mutex;
872 struct napi_struct napi;
873 struct qeth_rx rx;
874 struct delayed_work buffer_reclaim_work;
875 struct work_struct close_dev_work;
876};
877
878static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
879{
880 return card->state == CARD_STATE_SOFTSETUP;
881}
882
883static inline void qeth_unlock_channel(struct qeth_card *card,
884 struct qeth_channel *channel)
885{
886 atomic_set(&channel->irq_pending, 0);
887 wake_up(&card->wait_q);
888}
889
890struct qeth_trap_id {
891 __u16 lparnr;
892 char vmname[8];
893 __u8 chpid;
894 __u8 ssid;
895 __u16 devno;
896} __packed;
897
898static inline bool qeth_uses_tx_prio_queueing(struct qeth_card *card)
899{
900 return card->qdio.do_prio_queueing != QETH_NO_PRIO_QUEUEING;
901}
902
903static inline unsigned int qeth_tx_actual_queues(struct qeth_card *card)
904{
905 struct qeth_priv *priv = netdev_priv(card->dev);
906
907 if (qeth_uses_tx_prio_queueing(card))
908 return min(card->dev->num_tx_queues, card->qdio.no_out_queues);
909
910 return min(priv->tx_wanted_queues, card->qdio.no_out_queues);
911}
912
913static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
914{
915 if (txq == QETH_IQD_MCAST_TXQ)
916 return dev->num_tx_queues - 1;
917 if (txq == dev->num_tx_queues - 1)
918 return QETH_IQD_MCAST_TXQ;
919 return txq;
920}
921
922static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
923 struct qeth_qdio_out_q *queue)
924{
925 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
926 QETH_IQD_MCAST_TXQ;
927}
928
929static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
930 unsigned int elements)
931{
932 unsigned int i;
933
934 for (i = 0; i < elements; i++)
935 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
936 buf->element[14].sflags = 0;
937 buf->element[15].sflags = 0;
938}
939
940
941
942
943
944
945
946
947
948static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
949{
950 return PFN_UP(end) - PFN_DOWN(start);
951}
952
953static inline int qeth_get_ip_version(struct sk_buff *skb)
954{
955 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
956 __be16 prot = veth->h_vlan_proto;
957
958 if (prot == htons(ETH_P_8021Q))
959 prot = veth->h_vlan_encapsulated_proto;
960
961 switch (prot) {
962 case htons(ETH_P_IPV6):
963 return 6;
964 case htons(ETH_P_IP):
965 return 4;
966 default:
967 return 0;
968 }
969}
970
971static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
972{
973 u8 *addr = eth_hdr(skb)->h_dest;
974
975 if (is_multicast_ether_addr(addr))
976 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
977 RTN_MULTICAST;
978 return RTN_UNICAST;
979}
980
981static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv)
982{
983 struct dst_entry *dst = skb_dst(skb);
984 struct rt6_info *rt;
985
986 rt = (struct rt6_info *) dst;
987 if (dst)
988 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
989 return dst;
990}
991
992static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
993 struct dst_entry *dst)
994{
995 struct rtable *rt = (struct rtable *) dst;
996
997 return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
998}
999
1000static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
1001 struct dst_entry *dst)
1002{
1003 struct rt6_info *rt = (struct rt6_info *) dst;
1004
1005 if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
1006 return &rt->rt6i_gateway;
1007 else
1008 return &ipv6_hdr(skb)->daddr;
1009}
1010
1011static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
1012{
1013 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
1014 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
1015 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
1016 *flags |= QETH_HDR_EXT_UDP;
1017}
1018
1019static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
1020 struct qeth_buffer_pool_entry *entry)
1021{
1022 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
1023}
1024
1025static inline int qeth_is_diagass_supported(struct qeth_card *card,
1026 enum qeth_diags_cmds cmd)
1027{
1028 return card->info.diagass_support & (__u32)cmd;
1029}
1030
1031int qeth_send_simple_setassparms_prot(struct qeth_card *card,
1032 enum qeth_ipa_funcs ipa_func,
1033 u16 cmd_code, u32 *data,
1034 enum qeth_prot_versions prot);
1035
1036static inline int qeth_send_simple_setassparms(struct qeth_card *card,
1037 enum qeth_ipa_funcs ipa_func,
1038 u16 cmd_code, u32 *data)
1039{
1040 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1041 data, QETH_PROT_IPV4);
1042}
1043
1044static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
1045 enum qeth_ipa_funcs ipa_func,
1046 u16 cmd_code, u32 *data)
1047{
1048 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1049 data, QETH_PROT_IPV6);
1050}
1051
1052int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1053
1054extern const struct qeth_discipline qeth_l2_discipline;
1055extern const struct qeth_discipline qeth_l3_discipline;
1056extern const struct ethtool_ops qeth_ethtool_ops;
1057extern const struct ethtool_ops qeth_osn_ethtool_ops;
1058extern const struct attribute_group *qeth_generic_attr_groups[];
1059extern const struct attribute_group *qeth_osn_attr_groups[];
1060extern const struct attribute_group qeth_device_attr_group;
1061extern const struct attribute_group qeth_device_blkt_group;
1062extern const struct device_type qeth_generic_devtype;
1063
1064const char *qeth_get_cardname_short(struct qeth_card *);
1065int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
1066int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
1067void qeth_core_free_discipline(struct qeth_card *);
1068
1069
1070extern struct kmem_cache *qeth_core_header_cache;
1071extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1072
1073struct net_device *qeth_clone_netdev(struct net_device *orig);
1074struct qeth_card *qeth_get_card_by_busid(char *bus_id);
1075void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
1076 int clear_start_mask);
1077int qeth_threads_running(struct qeth_card *, unsigned long);
1078int qeth_set_offline(struct qeth_card *card, bool resetting);
1079
1080int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1081 int (*reply_cb)
1082 (struct qeth_card *, struct qeth_reply *, unsigned long),
1083 void *);
1084struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1085 enum qeth_ipa_cmds cmd_code,
1086 enum qeth_prot_versions prot,
1087 unsigned int data_length);
1088struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,
1089 unsigned int length, unsigned int ccws,
1090 long timeout);
1091struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1092 enum qeth_ipa_funcs ipa_func,
1093 u16 cmd_code,
1094 unsigned int data_length,
1095 enum qeth_prot_versions prot);
1096struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1097 enum qeth_diags_cmds sub_cmd,
1098 unsigned int data_length);
1099void qeth_notify_cmd(struct qeth_cmd_buffer *iob, int reason);
1100void qeth_put_cmd(struct qeth_cmd_buffer *iob);
1101
1102int qeth_schedule_recovery(struct qeth_card *card);
1103int qeth_poll(struct napi_struct *napi, int budget);
1104void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
1105int qeth_setadpparms_change_macaddr(struct qeth_card *);
1106void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
1107void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1108 u16 cmd_length,
1109 bool (*match)(struct qeth_cmd_buffer *iob,
1110 struct qeth_cmd_buffer *reply));
1111int qeth_query_switch_attributes(struct qeth_card *card,
1112 struct qeth_switch_info *sw_info);
1113int qeth_query_card_info(struct qeth_card *card,
1114 struct carrier_info *carrier_info);
1115int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
1116 enum qeth_ipa_isolation_modes mode);
1117
1118unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1119int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1120 struct sk_buff *skb, struct qeth_hdr *hdr,
1121 unsigned int offset, unsigned int hd_len,
1122 int elements_needed);
1123int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1124void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1125int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1126int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1127int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1128int qeth_set_features(struct net_device *, netdev_features_t);
1129void qeth_enable_hw_features(struct net_device *dev);
1130netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1131netdev_features_t qeth_features_check(struct sk_buff *skb,
1132 struct net_device *dev,
1133 netdev_features_t features);
1134void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1135int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count);
1136u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1137 u8 cast_type, struct net_device *sb_dev);
1138int qeth_open(struct net_device *dev);
1139int qeth_stop(struct net_device *dev);
1140
1141int qeth_vm_request_mac(struct qeth_card *card);
1142int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1143 struct qeth_qdio_out_q *queue, int ipv,
1144 void (*fill_header)(struct qeth_qdio_out_q *queue,
1145 struct qeth_hdr *hdr, struct sk_buff *skb,
1146 int ipv, unsigned int data_len));
1147
1148
1149int qeth_osn_assist(struct net_device *, void *, int);
1150int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1151 int (*assist_cb)(struct net_device *, void *),
1152 int (*data_cb)(struct sk_buff *));
1153void qeth_osn_deregister(struct net_device *);
1154
1155#endif
1156
