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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 {
263 union {
264 struct qeth_hdr_layer2 l2;
265 struct qeth_hdr_layer3 l3;
266 } hdr;
267} __attribute__ ((packed));
268
269#define QETH_QIB_PQUE_ORDER_RR 0
270#define QETH_QIB_PQUE_UNITS_SBAL 2
271#define QETH_QIB_PQUE_PRIO_DEFAULT 4
272
273struct qeth_qib_parms {
274 char pcit_magic[4];
275 u32 pcit_a;
276 u32 pcit_b;
277 u32 pcit_c;
278 char blkt_magic[4];
279 u32 blkt_total;
280 u32 blkt_inter_packet;
281 u32 blkt_inter_packet_jumbo;
282 char pque_magic[4];
283 u8 pque_order;
284 u8 pque_units;
285 u16 reserved;
286 u32 pque_priority[4];
287};
288
289
290struct qeth_hdr_ext_tso {
291 __u16 hdr_tot_len;
292 __u8 imb_hdr_no;
293 __u8 reserved;
294 __u8 hdr_type;
295 __u8 hdr_version;
296 __u16 hdr_len;
297 __u32 payload_len;
298 __u16 mss;
299 __u16 dg_hdr_len;
300 __u8 padding[16];
301} __attribute__ ((packed));
302
303struct qeth_hdr_tso {
304 struct qeth_hdr hdr;
305 struct qeth_hdr_ext_tso ext;
306} __attribute__ ((packed));
307
308
309
310#define QETH_HDR_PASSTHRU 0x10
311#define QETH_HDR_IPV6 0x80
312#define QETH_HDR_CAST_MASK 0x07
313enum qeth_cast_flags {
314 QETH_CAST_UNICAST = 0x06,
315 QETH_CAST_MULTICAST = 0x04,
316 QETH_CAST_BROADCAST = 0x05,
317 QETH_CAST_ANYCAST = 0x07,
318 QETH_CAST_NOCAST = 0x00,
319};
320
321enum qeth_layer2_frame_flags {
322 QETH_LAYER2_FLAG_MULTICAST = 0x01,
323 QETH_LAYER2_FLAG_BROADCAST = 0x02,
324 QETH_LAYER2_FLAG_UNICAST = 0x04,
325 QETH_LAYER2_FLAG_VLAN = 0x10,
326};
327
328enum qeth_header_ids {
329 QETH_HEADER_TYPE_LAYER3 = 0x01,
330 QETH_HEADER_TYPE_LAYER2 = 0x02,
331 QETH_HEADER_TYPE_L3_TSO = 0x03,
332 QETH_HEADER_TYPE_L2_TSO = 0x06,
333 QETH_HEADER_MASK_INVAL = 0x80,
334};
335
336#define QETH_HDR_EXT_VLAN_FRAME 0x01
337#define QETH_HDR_EXT_TOKEN_ID 0x02
338#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
339#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
340#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
341#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
342#define QETH_HDR_EXT_UDP 0x40
343
344static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
345 struct qeth_hdr_layer2 *h2)
346{
347 return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
348 h1->vlan_id == h2->vlan_id;
349}
350
351static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
352 struct qeth_hdr_layer3 *h2)
353{
354 return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
355 h1->vlan_id == h2->vlan_id;
356}
357
358static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
359 struct qeth_hdr_layer3 *h2)
360{
361 return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
362 ipv6_addr_equal(&h1->next_hop.addr, &h2->next_hop.addr);
363}
364
365struct qeth_local_addr {
366 struct hlist_node hnode;
367 struct rcu_head rcu;
368 struct in6_addr addr;
369};
370
371enum qeth_qdio_info_states {
372 QETH_QDIO_UNINITIALIZED,
373 QETH_QDIO_ALLOCATED,
374 QETH_QDIO_ESTABLISHED,
375 QETH_QDIO_CLEANING
376};
377
378struct qeth_buffer_pool_entry {
379 struct list_head list;
380 struct list_head init_list;
381 struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
382};
383
384struct qeth_qdio_buffer_pool {
385 struct list_head entry_list;
386 int buf_count;
387};
388
389struct qeth_qdio_buffer {
390 struct qdio_buffer *buffer;
391
392 struct qeth_buffer_pool_entry *pool_entry;
393 struct sk_buff *rx_skb;
394};
395
396struct qeth_qdio_q {
397 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
398 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
399 int next_buf_to_init;
400};
401
402enum qeth_qdio_out_buffer_state {
403
404 QETH_QDIO_BUF_EMPTY,
405
406 QETH_QDIO_BUF_PRIMED,
407};
408
409enum qeth_qaob_state {
410 QETH_QAOB_ISSUED,
411 QETH_QAOB_PENDING,
412 QETH_QAOB_DONE,
413};
414
415struct qeth_qaob_priv1 {
416 unsigned int state;
417 u8 queue_no;
418};
419
420struct qeth_qdio_out_buffer {
421 struct qdio_buffer *buffer;
422 atomic_t state;
423 int next_element_to_fill;
424 unsigned int frames;
425 unsigned int bytes;
426 struct sk_buff_head skb_list;
427 DECLARE_BITMAP(from_kmem_cache, QDIO_MAX_ELEMENTS_PER_BUFFER);
428
429 struct list_head list_entry;
430 struct qaob *aob;
431};
432
433struct qeth_card;
434
435#define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
436#define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
437
438#define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
439#define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
440
441struct qeth_card_stats {
442 u64 rx_bufs;
443 u64 rx_skb_csum;
444 u64 rx_sg_skbs;
445 u64 rx_sg_frags;
446 u64 rx_sg_alloc_page;
447
448 u64 rx_dropped_nomem;
449 u64 rx_dropped_notsupp;
450 u64 rx_dropped_runt;
451
452
453 u64 rx_packets;
454 u64 rx_bytes;
455 u64 rx_multicast;
456 u64 rx_length_errors;
457 u64 rx_frame_errors;
458 u64 rx_fifo_errors;
459};
460
461struct qeth_out_q_stats {
462 u64 bufs;
463 u64 bufs_pack;
464 u64 buf_elements;
465 u64 skbs_pack;
466 u64 skbs_sg;
467 u64 skbs_csum;
468 u64 skbs_tso;
469 u64 skbs_linearized;
470 u64 skbs_linearized_fail;
471 u64 tso_bytes;
472 u64 packing_mode_switch;
473 u64 stopped;
474 u64 doorbell;
475 u64 coal_frames;
476 u64 completion_irq;
477 u64 completion_yield;
478 u64 completion_timer;
479
480
481 u64 tx_packets;
482 u64 tx_bytes;
483 u64 tx_errors;
484 u64 tx_dropped;
485};
486
487#define QETH_TX_MAX_COALESCED_FRAMES 1
488#define QETH_TX_COALESCE_USECS 25
489#define QETH_TX_TIMER_USECS 500
490
491struct qeth_qdio_out_q {
492 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
493 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
494 struct list_head pending_bufs;
495 struct qeth_out_q_stats stats;
496 spinlock_t lock;
497 unsigned int priority;
498 u8 next_buf_to_fill;
499 u8 max_elements;
500 u8 queue_no;
501 u8 do_pack;
502 struct qeth_card *card;
503
504
505
506
507 atomic_t used_buffers;
508
509 atomic_t set_pci_flags_count;
510 struct napi_struct napi;
511 struct timer_list timer;
512 struct qeth_hdr *prev_hdr;
513 unsigned int coalesced_frames;
514 u8 bulk_start;
515 u8 bulk_count;
516 u8 bulk_max;
517
518 unsigned int coalesce_usecs;
519 unsigned int max_coalesced_frames;
520 unsigned int rescan_usecs;
521};
522
523#define qeth_for_each_output_queue(card, q, i) \
524 for (i = 0; i < card->qdio.no_out_queues && \
525 (q = card->qdio.out_qs[i]); i++)
526
527#define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
528
529static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue,
530 unsigned long usecs)
531{
532 timer_reduce(&queue->timer, usecs_to_jiffies(usecs) + jiffies);
533}
534
535static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
536{
537 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
538}
539
540static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
541{
542 return atomic_read(&queue->used_buffers) == 0;
543}
544
545struct qeth_qdio_info {
546 atomic_t state;
547
548 int no_in_queues;
549 struct qeth_qdio_q *in_q;
550 struct qeth_qdio_q *c_q;
551 struct qeth_qdio_buffer_pool in_buf_pool;
552 struct qeth_qdio_buffer_pool init_pool;
553 int in_buf_size;
554
555
556 unsigned int no_out_queues;
557 struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
558
559
560 int do_prio_queueing;
561 int default_out_queue;
562};
563
564
565
566
567enum qeth_channel_states {
568 CH_STATE_UP,
569 CH_STATE_DOWN,
570 CH_STATE_HALTED,
571 CH_STATE_STOPPED,
572};
573
574
575
576enum qeth_card_states {
577 CARD_STATE_DOWN,
578 CARD_STATE_SOFTSETUP,
579};
580
581
582
583
584enum qeth_prot_versions {
585 QETH_PROT_NONE = 0x0000,
586 QETH_PROT_IPV4 = 0x0004,
587 QETH_PROT_IPV6 = 0x0006,
588};
589
590enum qeth_cq {
591 QETH_CQ_DISABLED = 0,
592 QETH_CQ_ENABLED = 1,
593 QETH_CQ_NOTAVAILABLE = 2,
594};
595
596struct qeth_ipato {
597 bool enabled;
598 bool invert4;
599 bool invert6;
600 struct list_head entries;
601};
602
603struct qeth_channel {
604 struct ccw_device *ccwdev;
605 struct qeth_cmd_buffer *active_cmd;
606 enum qeth_channel_states state;
607};
608
609struct qeth_reply {
610 int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
611 unsigned long data);
612 void *param;
613};
614
615struct qeth_cmd_buffer {
616 struct list_head list_entry;
617 struct completion done;
618 spinlock_t lock;
619 unsigned int length;
620 refcount_t ref_count;
621 struct qeth_channel *channel;
622 struct qeth_reply reply;
623 long timeout;
624 unsigned char *data;
625 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
626 bool (*match)(struct qeth_cmd_buffer *iob,
627 struct qeth_cmd_buffer *reply);
628 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
629 unsigned int data_length);
630 int rc;
631};
632
633static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
634{
635 refcount_inc(&iob->ref_count);
636}
637
638static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob)
639{
640 if (!IS_IPA(iob->data))
641 return NULL;
642
643 return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
644}
645
646static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
647{
648 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
649}
650
651static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
652{
653 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
654}
655
656
657
658
659struct qeth_token {
660 __u32 issuer_rm_w;
661 __u32 issuer_rm_r;
662 __u32 cm_filter_w;
663 __u32 cm_filter_r;
664 __u32 cm_connection_w;
665 __u32 cm_connection_r;
666 __u32 ulp_filter_w;
667 __u32 ulp_filter_r;
668 __u32 ulp_connection_w;
669 __u32 ulp_connection_r;
670};
671
672struct qeth_seqno {
673 __u32 trans_hdr;
674 __u32 pdu_hdr;
675 __u32 pdu_hdr_ack;
676 __u16 ipa;
677};
678
679struct qeth_card_blkt {
680 int time_total;
681 int inter_packet;
682 int inter_packet_jumbo;
683};
684
685enum qeth_pnso_mode {
686 QETH_PNSO_NONE,
687 QETH_PNSO_BRIDGEPORT,
688 QETH_PNSO_ADDR_INFO,
689};
690
691enum qeth_link_mode {
692 QETH_LINK_MODE_UNKNOWN,
693 QETH_LINK_MODE_FIBRE_SHORT,
694 QETH_LINK_MODE_FIBRE_LONG,
695};
696
697struct qeth_link_info {
698 u32 speed;
699 u8 duplex;
700 u8 port;
701 enum qeth_link_mode link_mode;
702};
703
704#define QETH_BROADCAST_WITH_ECHO 0x01
705#define QETH_BROADCAST_WITHOUT_ECHO 0x02
706struct qeth_card_info {
707 unsigned short unit_addr2;
708 unsigned short cula;
709 __u16 func_level;
710 char mcl_level[QETH_MCL_LENGTH + 1];
711
712 u16 ddev_devno;
713 u8 cssid;
714 u8 iid;
715 u8 ssid;
716 u8 chpid;
717 u16 chid;
718 u8 ids_valid:1;
719 u8 dev_addr_is_registered:1;
720 u8 open_when_online:1;
721 u8 promisc_mode:1;
722 u8 use_v1_blkt:1;
723 u8 is_vm_nic:1;
724
725 u8 has_lp2lp_cso_v6;
726 u8 has_lp2lp_cso_v4;
727 enum qeth_pnso_mode pnso_mode;
728 enum qeth_card_types type;
729 enum qeth_link_types link_type;
730 int broadcast_capable;
731 bool layer_enforced;
732 struct qeth_card_blkt blkt;
733 __u32 diagass_support;
734 __u32 hwtrap;
735 struct qeth_link_info link_info;
736};
737
738enum qeth_discipline_id {
739 QETH_DISCIPLINE_UNDETERMINED = -1,
740 QETH_DISCIPLINE_LAYER3 = 0,
741 QETH_DISCIPLINE_LAYER2 = 1,
742};
743
744struct qeth_card_options {
745 struct qeth_ipa_caps ipa4;
746 struct qeth_ipa_caps ipa6;
747 struct qeth_routing_info route4;
748 struct qeth_routing_info route6;
749 struct qeth_ipa_caps adp;
750 struct qeth_sbp_info sbp;
751 struct qeth_vnicc_info vnicc;
752 enum qeth_discipline_id layer;
753 enum qeth_ipa_isolation_modes isolation;
754 int sniffer;
755 enum qeth_cq cq;
756 char hsuid[9];
757};
758
759#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
760#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
761
762
763
764
765enum qeth_threads {
766 QETH_RECOVER_THREAD = 1,
767};
768
769struct qeth_discipline {
770 int (*setup) (struct ccwgroup_device *);
771 void (*remove) (struct ccwgroup_device *);
772 int (*set_online)(struct qeth_card *card, bool carrier_ok);
773 void (*set_offline)(struct qeth_card *card);
774 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq,
775 void __user *data, int cmd);
776 int (*control_event_handler)(struct qeth_card *card,
777 struct qeth_ipa_cmd *cmd);
778};
779
780enum qeth_addr_disposition {
781 QETH_DISP_ADDR_DELETE = 0,
782 QETH_DISP_ADDR_DO_NOTHING = 1,
783 QETH_DISP_ADDR_ADD = 2,
784};
785
786struct qeth_rx {
787 int b_count;
788 int b_index;
789 u8 buf_element;
790 int e_offset;
791 int qdio_err;
792 u8 bufs_refill;
793};
794
795struct qeth_switch_info {
796 __u32 capabilities;
797 __u32 settings;
798};
799
800struct qeth_priv {
801 unsigned int rx_copybreak;
802 unsigned int tx_wanted_queues;
803 u32 brport_hw_features;
804 u32 brport_features;
805};
806
807#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
808
809struct qeth_card {
810 enum qeth_card_states state;
811 spinlock_t lock;
812 struct ccwgroup_device *gdev;
813 struct qeth_cmd_buffer *read_cmd;
814 struct qeth_channel read;
815 struct qeth_channel write;
816 struct qeth_channel data;
817
818 struct net_device *dev;
819 struct dentry *debugfs;
820 struct qeth_card_stats stats;
821 struct qeth_card_info info;
822 struct qeth_token token;
823 struct qeth_seqno seqno;
824 struct qeth_card_options options;
825
826 struct workqueue_struct *event_wq;
827 struct workqueue_struct *cmd_wq;
828 wait_queue_head_t wait_q;
829
830 struct mutex ip_lock;
831
832 DECLARE_HASHTABLE(ip_htable, 4);
833 struct qeth_ipato ipato;
834
835 DECLARE_HASHTABLE(local_addrs4, 4);
836 DECLARE_HASHTABLE(local_addrs6, 4);
837 spinlock_t local_addrs4_lock;
838 spinlock_t local_addrs6_lock;
839 DECLARE_HASHTABLE(rx_mode_addrs, 4);
840 struct work_struct rx_mode_work;
841 struct work_struct kernel_thread_starter;
842 spinlock_t thread_mask_lock;
843 unsigned long thread_start_mask;
844 unsigned long thread_allowed_mask;
845 unsigned long thread_running_mask;
846 struct list_head cmd_waiter_list;
847
848 struct qeth_qdio_info qdio;
849 int read_or_write_problem;
850 const struct qeth_discipline *discipline;
851 atomic_t force_alloc_skb;
852 struct service_level qeth_service_level;
853 struct qdio_ssqd_desc ssqd;
854 debug_info_t *debug;
855 struct mutex sbp_lock;
856 struct mutex conf_mutex;
857 struct mutex discipline_mutex;
858 struct napi_struct napi;
859 struct qeth_rx rx;
860 struct delayed_work buffer_reclaim_work;
861};
862
863static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
864{
865 return card->state == CARD_STATE_SOFTSETUP;
866}
867
868static inline bool qeth_use_tx_irqs(struct qeth_card *card)
869{
870 return !IS_IQD(card);
871}
872
873static inline void qeth_unlock_channel(struct qeth_card *card,
874 struct qeth_channel *channel)
875{
876 xchg(&channel->active_cmd, NULL);
877 wake_up(&card->wait_q);
878}
879
880static inline bool qeth_trylock_channel(struct qeth_channel *channel,
881 struct qeth_cmd_buffer *cmd)
882{
883 return cmpxchg(&channel->active_cmd, NULL, cmd) == NULL;
884}
885
886struct qeth_trap_id {
887 __u16 lparnr;
888 char vmname[8];
889 __u8 chpid;
890 __u8 ssid;
891 __u16 devno;
892} __packed;
893
894static inline bool qeth_uses_tx_prio_queueing(struct qeth_card *card)
895{
896 return card->qdio.do_prio_queueing != QETH_NO_PRIO_QUEUEING;
897}
898
899static inline unsigned int qeth_tx_actual_queues(struct qeth_card *card)
900{
901 struct qeth_priv *priv = netdev_priv(card->dev);
902
903 if (qeth_uses_tx_prio_queueing(card))
904 return min(card->dev->num_tx_queues, card->qdio.no_out_queues);
905
906 return min(priv->tx_wanted_queues, card->qdio.no_out_queues);
907}
908
909static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
910{
911 if (txq == QETH_IQD_MCAST_TXQ)
912 return dev->num_tx_queues - 1;
913 if (txq == dev->num_tx_queues - 1)
914 return QETH_IQD_MCAST_TXQ;
915 return txq;
916}
917
918static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
919 struct qeth_qdio_out_q *queue)
920{
921 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
922 QETH_IQD_MCAST_TXQ;
923}
924
925static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
926 unsigned int elements)
927{
928 unsigned int i;
929
930 for (i = 0; i < elements; i++)
931 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
932 buf->element[14].sflags = 0;
933 buf->element[15].sflags = 0;
934}
935
936
937
938
939
940
941
942
943
944static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
945{
946 return PFN_UP(end) - PFN_DOWN(start);
947}
948
949static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
950{
951 u8 *addr = eth_hdr(skb)->h_dest;
952
953 if (is_multicast_ether_addr(addr))
954 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
955 RTN_MULTICAST;
956 return RTN_UNICAST;
957}
958
959static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb,
960 __be16 proto)
961{
962 struct dst_entry *dst = skb_dst(skb);
963 struct rt6_info *rt;
964
965 rt = (struct rt6_info *) dst;
966 if (dst) {
967 if (proto == htons(ETH_P_IPV6))
968 dst = dst_check(dst, rt6_get_cookie(rt));
969 else
970 dst = dst_check(dst, 0);
971 }
972
973 return dst;
974}
975
976static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
977 struct dst_entry *dst)
978{
979 struct rtable *rt = (struct rtable *) dst;
980
981 return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
982}
983
984static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
985 struct dst_entry *dst)
986{
987 struct rt6_info *rt = (struct rt6_info *) dst;
988
989 if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
990 return &rt->rt6i_gateway;
991 else
992 return &ipv6_hdr(skb)->daddr;
993}
994
995static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, __be16 proto)
996{
997 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
998 if ((proto == htons(ETH_P_IP) && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
999 (proto == htons(ETH_P_IPV6) && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
1000 *flags |= QETH_HDR_EXT_UDP;
1001}
1002
1003static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
1004 struct qeth_buffer_pool_entry *entry)
1005{
1006 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
1007}
1008
1009static inline int qeth_is_diagass_supported(struct qeth_card *card,
1010 enum qeth_diags_cmds cmd)
1011{
1012 return card->info.diagass_support & (__u32)cmd;
1013}
1014
1015int qeth_send_simple_setassparms_prot(struct qeth_card *card,
1016 enum qeth_ipa_funcs ipa_func,
1017 u16 cmd_code, u32 *data,
1018 enum qeth_prot_versions prot);
1019
1020static inline int qeth_send_simple_setassparms(struct qeth_card *card,
1021 enum qeth_ipa_funcs ipa_func,
1022 u16 cmd_code, u32 *data)
1023{
1024 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1025 data, QETH_PROT_IPV4);
1026}
1027
1028static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
1029 enum qeth_ipa_funcs ipa_func,
1030 u16 cmd_code, u32 *data)
1031{
1032 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1033 data, QETH_PROT_IPV6);
1034}
1035
1036int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1037
1038extern const struct qeth_discipline qeth_l2_discipline;
1039extern const struct qeth_discipline qeth_l3_discipline;
1040extern const struct ethtool_ops qeth_ethtool_ops;
1041extern const struct attribute_group *qeth_dev_groups[];
1042
1043const char *qeth_get_cardname_short(struct qeth_card *);
1044int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
1045int qeth_setup_discipline(struct qeth_card *card, enum qeth_discipline_id disc);
1046void qeth_remove_discipline(struct qeth_card *card);
1047
1048
1049extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1050
1051struct net_device *qeth_clone_netdev(struct net_device *orig);
1052void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
1053 int clear_start_mask);
1054int qeth_threads_running(struct qeth_card *, unsigned long);
1055int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc,
1056 bool resetting);
1057
1058int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1059 int (*reply_cb)
1060 (struct qeth_card *, struct qeth_reply *, unsigned long),
1061 void *);
1062struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1063 enum qeth_ipa_cmds cmd_code,
1064 enum qeth_prot_versions prot,
1065 unsigned int data_length);
1066struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1067 enum qeth_ipa_funcs ipa_func,
1068 u16 cmd_code,
1069 unsigned int data_length,
1070 enum qeth_prot_versions prot);
1071struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1072 enum qeth_diags_cmds sub_cmd,
1073 unsigned int data_length);
1074
1075int qeth_schedule_recovery(struct qeth_card *card);
1076int qeth_poll(struct napi_struct *napi, int budget);
1077void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
1078int qeth_setadpparms_change_macaddr(struct qeth_card *);
1079void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
1080int qeth_query_switch_attributes(struct qeth_card *card,
1081 struct qeth_switch_info *sw_info);
1082int qeth_query_card_info(struct qeth_card *card,
1083 struct qeth_link_info *link_info);
1084int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
1085 enum qeth_ipa_isolation_modes mode);
1086
1087int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1088int qeth_siocdevprivate(struct net_device *dev, struct ifreq *rq,
1089 void __user *data, int cmd);
1090void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1091int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1092int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1093int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1094int qeth_set_features(struct net_device *, netdev_features_t);
1095void qeth_enable_hw_features(struct net_device *dev);
1096netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1097netdev_features_t qeth_features_check(struct sk_buff *skb,
1098 struct net_device *dev,
1099 netdev_features_t features);
1100void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1101int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count);
1102u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1103 u8 cast_type, struct net_device *sb_dev);
1104int qeth_open(struct net_device *dev);
1105int qeth_stop(struct net_device *dev);
1106
1107int qeth_vm_request_mac(struct qeth_card *card);
1108int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1109 struct qeth_qdio_out_q *queue, __be16 proto,
1110 void (*fill_header)(struct qeth_qdio_out_q *queue,
1111 struct qeth_hdr *hdr, struct sk_buff *skb,
1112 __be16 proto, unsigned int data_len));
1113
1114#endif
1115
