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1/*
2 * drivers/s390/net/qeth_core.h
3 *
4 * Copyright IBM Corp. 2007
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 */
10
11#ifndef __QETH_CORE_H__
12#define __QETH_CORE_H__
13
14#include <linux/if.h>
15#include <linux/if_arp.h>
16#include <linux/if_tr.h>
17#include <linux/trdevice.h>
18#include <linux/etherdevice.h>
19#include <linux/if_vlan.h>
20#include <linux/ctype.h>
21#include <linux/in6.h>
22#include <linux/bitops.h>
23#include <linux/seq_file.h>
24#include <linux/ethtool.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_input_handler: number of times called, time spent in */
114 __u64 inbound_start_time;
115 unsigned int inbound_cnt;
116 unsigned int inbound_time;
117 /* qeth_send_packet: number of times called, time spent in */
118 __u64 outbound_start_time;
119 unsigned int outbound_cnt;
120 unsigned int outbound_time;
121 /* qdio_output_handler: number of times called, time spent in */
122 __u64 outbound_handler_start_time;
123 unsigned int outbound_handler_cnt;
124 unsigned int outbound_handler_time;
125 /* number of calls to and time spent in do_QDIO for inbound queue */
126 __u64 inbound_do_qdio_start_time;
127 unsigned int inbound_do_qdio_cnt;
128 unsigned int inbound_do_qdio_time;
129 /* number of calls to and time spent in do_QDIO for outbound queues */
130 __u64 outbound_do_qdio_start_time;
131 unsigned int outbound_do_qdio_cnt;
132 unsigned int outbound_do_qdio_time;
133 unsigned int large_send_bytes;
134 unsigned int large_send_cnt;
135 unsigned int sg_skbs_sent;
136 unsigned int sg_frags_sent;
137 /* initial values when measuring starts */
138 unsigned long initial_rx_packets;
139 unsigned long initial_tx_packets;
140 /* inbound scatter gather data */
141 unsigned int sg_skbs_rx;
142 unsigned int sg_frags_rx;
143 unsigned int sg_alloc_page_rx;
144 unsigned int tx_csum;
145 unsigned int tx_lin;
146};
147
148/* Routing stuff */
149struct qeth_routing_info {
150 enum qeth_routing_types type;
151};
152
153/* IPA stuff */
154struct qeth_ipa_info {
155 __u32 supported_funcs;
156 __u32 enabled_funcs;
157};
158
159static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
160 enum qeth_ipa_funcs func)
161{
162 return (ipa->supported_funcs & func);
163}
164
165static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
166 enum qeth_ipa_funcs func)
167{
168 return (ipa->supported_funcs & ipa->enabled_funcs & func);
169}
170
171#define qeth_adp_supported(c, f) \
172 qeth_is_ipa_supported(&c->options.adp, f)
173#define qeth_adp_enabled(c, f) \
174 qeth_is_ipa_enabled(&c->options.adp, f)
175#define qeth_is_supported(c, f) \
176 qeth_is_ipa_supported(&c->options.ipa4, f)
177#define qeth_is_enabled(c, f) \
178 qeth_is_ipa_enabled(&c->options.ipa4, f)
179#define qeth_is_supported6(c, f) \
180 qeth_is_ipa_supported(&c->options.ipa6, f)
181#define qeth_is_enabled6(c, f) \
182 qeth_is_ipa_enabled(&c->options.ipa6, f)
183#define qeth_is_ipafunc_supported(c, prot, f) \
184 ((prot == QETH_PROT_IPV6) ? \
185 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
186#define qeth_is_ipafunc_enabled(c, prot, f) \
187 ((prot == QETH_PROT_IPV6) ? \
188 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
189
190#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
191#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
192
193#define QETH_MODELLIST_ARRAY \
194 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
195 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
196 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
197 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
198 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
199 {0, 0, 0, 0, 0, 0} }
200#define QETH_CU_TYPE_IND 0
201#define QETH_CU_MODEL_IND 1
202#define QETH_DEV_TYPE_IND 2
203#define QETH_DEV_MODEL_IND 3
204#define QETH_QUEUE_NO_IND 4
205#define QETH_MULTICAST_IND 5
206
207#define QETH_REAL_CARD 1
208#define QETH_VLAN_CARD 2
209#define QETH_BUFSIZE 4096
210
211/**
212 * some more defs
213 */
214#define QETH_TX_TIMEOUT 100 * HZ
215#define QETH_RCD_TIMEOUT 60 * HZ
216#define QETH_HEADER_SIZE 32
217#define QETH_MAX_PORTNO 15
218
219/*IPv6 address autoconfiguration stuff*/
220#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
221#define UNIQUE_ID_NOT_BY_CARD 0x10000
222
223/*****************************************************************************/
224/* QDIO queue and buffer handling */
225/*****************************************************************************/
226#define QETH_MAX_QUEUES 4
227#define QETH_IN_BUF_SIZE_DEFAULT 65536
228#define QETH_IN_BUF_COUNT_DEFAULT 64
229#define QETH_IN_BUF_COUNT_HSDEFAULT 128
230#define QETH_IN_BUF_COUNT_MIN 8
231#define QETH_IN_BUF_COUNT_MAX 128
232#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
233#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
234 ((card)->qdio.in_buf_pool.buf_count / 2)
235
236/* buffers we have to be behind before we get a PCI */
237#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
238/*enqueued free buffers left before we get a PCI*/
239#define QETH_PCI_THRESHOLD_B(card) 0
240/*not used unless the microcode gets patched*/
241#define QETH_PCI_TIMER_VALUE(card) 3
242
243/* priority queing */
244#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
245#define QETH_DEFAULT_QUEUE 2
246#define QETH_NO_PRIO_QUEUEING 0
247#define QETH_PRIO_Q_ING_PREC 1
248#define QETH_PRIO_Q_ING_TOS 2
249#define IP_TOS_LOWDELAY 0x10
250#define IP_TOS_HIGHTHROUGHPUT 0x08
251#define IP_TOS_HIGHRELIABILITY 0x04
252#define IP_TOS_NOTIMPORTANT 0x02
253
254/* Packing */
255#define QETH_LOW_WATERMARK_PACK 2
256#define QETH_HIGH_WATERMARK_PACK 5
257#define QETH_WATERMARK_PACK_FUZZ 1
258
259#define QETH_IP_HEADER_SIZE 40
260
261/* large receive scatter gather copy break */
262#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
263
264struct qeth_hdr_layer3 {
265 __u8 id;
266 __u8 flags;
267 __u16 inbound_checksum; /*TSO:__u16 seqno */
268 __u32 token; /*TSO: __u32 reserved */
269 __u16 length;
270 __u8 vlan_prio;
271 __u8 ext_flags;
272 __u16 vlan_id;
273 __u16 frame_offset;
274 __u8 dest_addr[16];
275} __attribute__ ((packed));
276
277struct qeth_hdr_layer2 {
278 __u8 id;
279 __u8 flags[3];
280 __u8 port_no;
281 __u8 hdr_length;
282 __u16 pkt_length;
283 __u16 seq_no;
284 __u16 vlan_id;
285 __u32 reserved;
286 __u8 reserved2[16];
287} __attribute__ ((packed));
288
289struct qeth_hdr_osn {
290 __u8 id;
291 __u8 reserved;
292 __u16 seq_no;
293 __u16 reserved2;
294 __u16 control_flags;
295 __u16 pdu_length;
296 __u8 reserved3[18];
297 __u32 ccid;
298} __attribute__ ((packed));
299
300struct qeth_hdr {
301 union {
302 struct qeth_hdr_layer2 l2;
303 struct qeth_hdr_layer3 l3;
304 struct qeth_hdr_osn osn;
305 } hdr;
306} __attribute__ ((packed));
307
308/*TCP Segmentation Offload header*/
309struct qeth_hdr_ext_tso {
310 __u16 hdr_tot_len;
311 __u8 imb_hdr_no;
312 __u8 reserved;
313 __u8 hdr_type;
314 __u8 hdr_version;
315 __u16 hdr_len;
316 __u32 payload_len;
317 __u16 mss;
318 __u16 dg_hdr_len;
319 __u8 padding[16];
320} __attribute__ ((packed));
321
322struct qeth_hdr_tso {
323 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
324 struct qeth_hdr_ext_tso ext;
325} __attribute__ ((packed));
326
327
328/* flags for qeth_hdr.flags */
329#define QETH_HDR_PASSTHRU 0x10
330#define QETH_HDR_IPV6 0x80
331#define QETH_HDR_CAST_MASK 0x07
332enum qeth_cast_flags {
333 QETH_CAST_UNICAST = 0x06,
334 QETH_CAST_MULTICAST = 0x04,
335 QETH_CAST_BROADCAST = 0x05,
336 QETH_CAST_ANYCAST = 0x07,
337 QETH_CAST_NOCAST = 0x00,
338};
339
340enum qeth_layer2_frame_flags {
341 QETH_LAYER2_FLAG_MULTICAST = 0x01,
342 QETH_LAYER2_FLAG_BROADCAST = 0x02,
343 QETH_LAYER2_FLAG_UNICAST = 0x04,
344 QETH_LAYER2_FLAG_VLAN = 0x10,
345};
346
347enum qeth_header_ids {
348 QETH_HEADER_TYPE_LAYER3 = 0x01,
349 QETH_HEADER_TYPE_LAYER2 = 0x02,
350 QETH_HEADER_TYPE_TSO = 0x03,
351 QETH_HEADER_TYPE_OSN = 0x04,
352};
353/* flags for qeth_hdr.ext_flags */
354#define QETH_HDR_EXT_VLAN_FRAME 0x01
355#define QETH_HDR_EXT_TOKEN_ID 0x02
356#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
357#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
358#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
359#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
360#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
361
362static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
363{
364 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
365}
366
367enum qeth_qdio_buffer_states {
368 /*
369 * inbound: read out by driver; owned by hardware in order to be filled
370 * outbound: owned by driver in order to be filled
371 */
372 QETH_QDIO_BUF_EMPTY,
373 /*
374 * inbound: filled by hardware; owned by driver in order to be read out
375 * outbound: filled by driver; owned by hardware in order to be sent
376 */
377 QETH_QDIO_BUF_PRIMED,
378};
379
380enum qeth_qdio_info_states {
381 QETH_QDIO_UNINITIALIZED,
382 QETH_QDIO_ALLOCATED,
383 QETH_QDIO_ESTABLISHED,
384 QETH_QDIO_CLEANING
385};
386
387struct qeth_buffer_pool_entry {
388 struct list_head list;
389 struct list_head init_list;
390 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
391};
392
393struct qeth_qdio_buffer_pool {
394 struct list_head entry_list;
395 int buf_count;
396};
397
398struct qeth_qdio_buffer {
399 struct qdio_buffer *buffer;
400 /* the buffer pool entry currently associated to this buffer */
401 struct qeth_buffer_pool_entry *pool_entry;
402};
403
404struct qeth_qdio_q {
405 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
406 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
407 int next_buf_to_init;
408} __attribute__ ((aligned(256)));
409
410struct qeth_qdio_out_buffer {
411 struct qdio_buffer *buffer;
412 atomic_t state;
413 int next_element_to_fill;
414 struct sk_buff_head skb_list;
415 struct list_head ctx_list;
416 int is_header[16];
417};
418
419struct qeth_card;
420
421enum qeth_out_q_states {
422 QETH_OUT_Q_UNLOCKED,
423 QETH_OUT_Q_LOCKED,
424 QETH_OUT_Q_LOCKED_FLUSH,
425};
426
427struct qeth_qdio_out_q {
428 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
429 struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
430 int queue_no;
431 struct qeth_card *card;
432 atomic_t state;
433 int do_pack;
434 /*
435 * index of buffer to be filled by driver; state EMPTY or PACKING
436 */
437 int next_buf_to_fill;
438 /*
439 * number of buffers that are currently filled (PRIMED)
440 * -> these buffers are hardware-owned
441 */
442 atomic_t used_buffers;
443 /* indicates whether PCI flag must be set (or if one is outstanding) */
444 atomic_t set_pci_flags_count;
445} __attribute__ ((aligned(256)));
446
447struct qeth_qdio_info {
448 atomic_t state;
449 /* input */
450 struct qeth_qdio_q *in_q;
451 struct qeth_qdio_buffer_pool in_buf_pool;
452 struct qeth_qdio_buffer_pool init_pool;
453 int in_buf_size;
454
455 /* output */
456 int no_out_queues;
457 struct qeth_qdio_out_q **out_qs;
458
459 /* priority queueing */
460 int do_prio_queueing;
461 int default_out_queue;
462};
463
464enum qeth_send_errors {
465 QETH_SEND_ERROR_NONE,
466 QETH_SEND_ERROR_LINK_FAILURE,
467 QETH_SEND_ERROR_RETRY,
468 QETH_SEND_ERROR_KICK_IT,
469};
470
471#define QETH_ETH_MAC_V4 0x0100 /* like v4 */
472#define QETH_ETH_MAC_V6 0x3333 /* like v6 */
473/* tr mc mac is longer, but that will be enough to detect mc frames */
474#define QETH_TR_MAC_NC 0xc000 /* non-canonical */
475#define QETH_TR_MAC_C 0x0300 /* canonical */
476
477#define DEFAULT_ADD_HHLEN 0
478#define MAX_ADD_HHLEN 1024
479
480/**
481 * buffer stuff for read channel
482 */
483#define QETH_CMD_BUFFER_NO 8
484
485/**
486 * channel state machine
487 */
488enum qeth_channel_states {
489 CH_STATE_UP,
490 CH_STATE_DOWN,
491 CH_STATE_ACTIVATING,
492 CH_STATE_HALTED,
493 CH_STATE_STOPPED,
494 CH_STATE_RCD,
495 CH_STATE_RCD_DONE,
496};
497/**
498 * card state machine
499 */
500enum qeth_card_states {
501 CARD_STATE_DOWN,
502 CARD_STATE_HARDSETUP,
503 CARD_STATE_SOFTSETUP,
504 CARD_STATE_UP,
505 CARD_STATE_RECOVER,
506};
507
508/**
509 * Protocol versions
510 */
511enum qeth_prot_versions {
512 QETH_PROT_IPV4 = 0x0004,
513 QETH_PROT_IPV6 = 0x0006,
514};
515
516enum qeth_ip_types {
517 QETH_IP_TYPE_NORMAL,
518 QETH_IP_TYPE_VIPA,
519 QETH_IP_TYPE_RXIP,
520 QETH_IP_TYPE_DEL_ALL_MC,
521};
522
523enum qeth_cmd_buffer_state {
524 BUF_STATE_FREE,
525 BUF_STATE_LOCKED,
526 BUF_STATE_PROCESSED,
527};
528
529struct qeth_ipato {
530 int enabled;
531 int invert4;
532 int invert6;
533 struct list_head entries;
534};
535
536struct qeth_channel;
537
538struct qeth_cmd_buffer {
539 enum qeth_cmd_buffer_state state;
540 struct qeth_channel *channel;
541 unsigned char *data;
542 int rc;
543 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
544};
545
546/**
547 * definition of a qeth channel, used for read and write
548 */
549struct qeth_channel {
550 enum qeth_channel_states state;
551 struct ccw1 ccw;
552 spinlock_t iob_lock;
553 wait_queue_head_t wait_q;
554 struct tasklet_struct irq_tasklet;
555 struct ccw_device *ccwdev;
556/*command buffer for control data*/
557 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
558 atomic_t irq_pending;
559 int io_buf_no;
560 int buf_no;
561};
562
563/**
564 * OSA card related definitions
565 */
566struct qeth_token {
567 __u32 issuer_rm_w;
568 __u32 issuer_rm_r;
569 __u32 cm_filter_w;
570 __u32 cm_filter_r;
571 __u32 cm_connection_w;
572 __u32 cm_connection_r;
573 __u32 ulp_filter_w;
574 __u32 ulp_filter_r;
575 __u32 ulp_connection_w;
576 __u32 ulp_connection_r;
577};
578
579struct qeth_seqno {
580 __u32 trans_hdr;
581 __u32 pdu_hdr;
582 __u32 pdu_hdr_ack;
583 __u16 ipa;
584 __u32 pkt_seqno;
585};
586
587struct qeth_reply {
588 struct list_head list;
589 wait_queue_head_t wait_q;
590 int (*callback)(struct qeth_card *, struct qeth_reply *,
591 unsigned long);
592 u32 seqno;
593 unsigned long offset;
594 atomic_t received;
595 int rc;
596 void *param;
597 struct qeth_card *card;
598 atomic_t refcnt;
599};
600
601
602struct qeth_card_blkt {
603 int time_total;
604 int inter_packet;
605 int inter_packet_jumbo;
606};
607
608#define QETH_BROADCAST_WITH_ECHO 0x01
609#define QETH_BROADCAST_WITHOUT_ECHO 0x02
610#define QETH_LAYER2_MAC_READ 0x01
611#define QETH_LAYER2_MAC_REGISTERED 0x02
612struct qeth_card_info {
613 unsigned short unit_addr2;
614 unsigned short cula;
615 unsigned short chpid;
616 __u16 func_level;
617 char mcl_level[QETH_MCL_LENGTH + 1];
618 int guestlan;
619 int mac_bits;
620 int portname_required;
621 int portno;
622 char portname[9];
623 enum qeth_card_types type;
624 enum qeth_link_types link_type;
625 int is_multicast_different;
626 int initial_mtu;
627 int max_mtu;
628 int broadcast_capable;
629 int unique_id;
630 struct qeth_card_blkt blkt;
631 __u32 csum_mask;
632 __u32 tx_csum_mask;
633 enum qeth_ipa_promisc_modes promisc_mode;
634 __u32 diagass_support;
635 __u32 hwtrap;
636};
637
638struct qeth_card_options {
639 struct qeth_routing_info route4;
640 struct qeth_ipa_info ipa4;
641 struct qeth_ipa_info adp; /*Adapter parameters*/
642 struct qeth_routing_info route6;
643 struct qeth_ipa_info ipa6;
644 int broadcast_mode;
645 int macaddr_mode;
646 int fake_broadcast;
647 int add_hhlen;
648 int layer2;
649 int performance_stats;
650 int rx_sg_cb;
651 enum qeth_ipa_isolation_modes isolation;
652 int sniffer;
653};
654
655/*
656 * thread bits for qeth_card thread masks
657 */
658enum qeth_threads {
659 QETH_RECOVER_THREAD = 1,
660};
661
662struct qeth_osn_info {
663 int (*assist_cb)(struct net_device *dev, void *data);
664 int (*data_cb)(struct sk_buff *skb);
665};
666
667enum qeth_discipline_id {
668 QETH_DISCIPLINE_LAYER3 = 0,
669 QETH_DISCIPLINE_LAYER2 = 1,
670};
671
672struct qeth_discipline {
673 void (*start_poll)(struct ccw_device *, int, unsigned long);
674 qdio_handler_t *input_handler;
675 qdio_handler_t *output_handler;
676 int (*recover)(void *ptr);
677 struct ccwgroup_driver *ccwgdriver;
678};
679
680struct qeth_vlan_vid {
681 struct list_head list;
682 unsigned short vid;
683};
684
685struct qeth_mc_mac {
686 struct list_head list;
687 __u8 mc_addr[MAX_ADDR_LEN];
688 unsigned char mc_addrlen;
689 int is_vmac;
690};
691
692struct qeth_rx {
693 int b_count;
694 int b_index;
695 struct qdio_buffer_element *b_element;
696 int e_offset;
697 int qdio_err;
698};
699
700#define QETH_NAPI_WEIGHT 128
701
702struct qeth_card {
703 struct list_head list;
704 enum qeth_card_states state;
705 int lan_online;
706 spinlock_t lock;
707 struct ccwgroup_device *gdev;
708 struct qeth_channel read;
709 struct qeth_channel write;
710 struct qeth_channel data;
711
712 struct net_device *dev;
713 struct net_device_stats stats;
714
715 struct qeth_card_info info;
716 struct qeth_token token;
717 struct qeth_seqno seqno;
718 struct qeth_card_options options;
719
720 wait_queue_head_t wait_q;
721 spinlock_t vlanlock;
722 spinlock_t mclock;
723 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
724 struct list_head vid_list;
725 struct list_head mc_list;
726 struct work_struct kernel_thread_starter;
727 spinlock_t thread_mask_lock;
728 unsigned long thread_start_mask;
729 unsigned long thread_allowed_mask;
730 unsigned long thread_running_mask;
731 spinlock_t ip_lock;
732 struct list_head ip_list;
733 struct list_head *ip_tbd_list;
734 struct qeth_ipato ipato;
735 struct list_head cmd_waiter_list;
736 /* QDIO buffer handling */
737 struct qeth_qdio_info qdio;
738 struct qeth_perf_stats perf_stats;
739 int read_or_write_problem;
740 struct qeth_osn_info osn_info;
741 struct qeth_discipline discipline;
742 atomic_t force_alloc_skb;
743 struct service_level qeth_service_level;
744 struct qdio_ssqd_desc ssqd;
745 debug_info_t *debug;
746 struct mutex conf_mutex;
747 struct mutex discipline_mutex;
748 struct napi_struct napi;
749 struct qeth_rx rx;
750};
751
752struct qeth_card_list_struct {
753 struct list_head list;
754 rwlock_t rwlock;
755};
756
757struct qeth_trap_id {
758 __u16 lparnr;
759 char vmname[8];
760 __u8 chpid;
761 __u8 ssid;
762 __u16 devno;
763} __packed;
764
765/*some helper functions*/
766#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
767
768static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
769{
770 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
771 dev_get_drvdata(&cdev->dev))->dev);
772 return card;
773}
774
775static inline int qeth_get_micros(void)
776{
777 return (int) (get_clock() >> 12);
778}
779
780static inline int qeth_get_ip_version(struct sk_buff *skb)
781{
782 struct ethhdr *ehdr = (struct ethhdr *)skb->data;
783 switch (ehdr->h_proto) {
784 case ETH_P_IPV6:
785 return 6;
786 case ETH_P_IP:
787 return 4;
788 default:
789 return 0;
790 }
791}
792
793static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
794 struct qeth_buffer_pool_entry *entry)
795{
796 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
797}
798
799static inline int qeth_is_diagass_supported(struct qeth_card *card,
800 enum qeth_diags_cmds cmd)
801{
802 return card->info.diagass_support & (__u32)cmd;
803}
804
805extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
806extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
807const char *qeth_get_cardname_short(struct qeth_card *);
808int qeth_realloc_buffer_pool(struct qeth_card *, int);
809int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
810void qeth_core_free_discipline(struct qeth_card *);
811int qeth_core_create_device_attributes(struct device *);
812void qeth_core_remove_device_attributes(struct device *);
813int qeth_core_create_osn_attributes(struct device *);
814void qeth_core_remove_osn_attributes(struct device *);
815
816/* exports for qeth discipline device drivers */
817extern struct qeth_card_list_struct qeth_core_card_list;
818extern struct kmem_cache *qeth_core_header_cache;
819extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
820
821void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
822int qeth_threads_running(struct qeth_card *, unsigned long);
823int qeth_wait_for_threads(struct qeth_card *, unsigned long);
824int qeth_do_run_thread(struct qeth_card *, unsigned long);
825void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
826void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
827int qeth_core_hardsetup_card(struct qeth_card *);
828void qeth_print_status_message(struct qeth_card *);
829int qeth_init_qdio_queues(struct qeth_card *);
830int qeth_send_startlan(struct qeth_card *);
831int qeth_send_stoplan(struct qeth_card *);
832int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
833 int (*reply_cb)
834 (struct qeth_card *, struct qeth_reply *, unsigned long),
835 void *);
836struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
837 enum qeth_ipa_cmds, enum qeth_prot_versions);
838int qeth_query_setadapterparms(struct qeth_card *);
839int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
840 unsigned int, const char *);
841void qeth_queue_input_buffer(struct qeth_card *, int);
842struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
843 struct qdio_buffer *, struct qdio_buffer_element **, int *,
844 struct qeth_hdr **);
845void qeth_schedule_recovery(struct qeth_card *);
846void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
847void qeth_qdio_input_handler(struct ccw_device *,
848 unsigned int, unsigned int, int,
849 int, unsigned long);
850void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
851 int, int, int, unsigned long);
852void qeth_clear_ipacmd_list(struct qeth_card *);
853int qeth_qdio_clear_card(struct qeth_card *, int);
854void qeth_clear_working_pool_list(struct qeth_card *);
855void qeth_clear_cmd_buffers(struct qeth_channel *);
856void qeth_clear_qdio_buffers(struct qeth_card *);
857void qeth_setadp_promisc_mode(struct qeth_card *);
858struct net_device_stats *qeth_get_stats(struct net_device *);
859int qeth_change_mtu(struct net_device *, int);
860int qeth_setadpparms_change_macaddr(struct qeth_card *);
861void qeth_tx_timeout(struct net_device *);
862void qeth_prepare_control_data(struct qeth_card *, int,
863 struct qeth_cmd_buffer *);
864void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
865void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
866struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
867int qeth_mdio_read(struct net_device *, int, int);
868int qeth_snmp_command(struct qeth_card *, char __user *);
869struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
870int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
871 unsigned long);
872int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
873 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
874 void *reply_param);
875int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
876int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
877int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
878 struct sk_buff *, struct qeth_hdr *, int, int, int);
879int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
880 struct sk_buff *, struct qeth_hdr *, int);
881int qeth_core_get_sset_count(struct net_device *, int);
882void qeth_core_get_ethtool_stats(struct net_device *,
883 struct ethtool_stats *, u64 *);
884void qeth_core_get_strings(struct net_device *, u32, u8 *);
885void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
886void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
887int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
888int qeth_set_access_ctrl_online(struct qeth_card *card);
889int qeth_hdr_chk_and_bounce(struct sk_buff *, int);
890int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
891int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
892
893/* exports for OSN */
894int qeth_osn_assist(struct net_device *, void *, int);
895int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
896 int (*assist_cb)(struct net_device *, void *),
897 int (*data_cb)(struct sk_buff *));
898void qeth_osn_deregister(struct net_device *);
899
900#endif /* __QETH_CORE_H__ */
1/*
2 * drivers/s390/net/qeth_core.h
3 *
4 * Copyright IBM Corp. 2007
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 */
10
11#ifndef __QETH_CORE_H__
12#define __QETH_CORE_H__
13
14#include <linux/if.h>
15#include <linux/if_arp.h>
16#include <linux/etherdevice.h>
17#include <linux/if_vlan.h>
18#include <linux/ctype.h>
19#include <linux/in6.h>
20#include <linux/bitops.h>
21#include <linux/seq_file.h>
22#include <linux/ethtool.h>
23
24#include <net/ipv6.h>
25#include <net/if_inet6.h>
26#include <net/addrconf.h>
27
28#include <asm/debug.h>
29#include <asm/qdio.h>
30#include <asm/ccwdev.h>
31#include <asm/ccwgroup.h>
32#include <asm/sysinfo.h>
33
34#include "qeth_core_mpc.h"
35
36/**
37 * Debug Facility stuff
38 */
39enum qeth_dbf_names {
40 QETH_DBF_SETUP,
41 QETH_DBF_MSG,
42 QETH_DBF_CTRL,
43 QETH_DBF_INFOS /* must be last element */
44};
45
46struct qeth_dbf_info {
47 char name[DEBUG_MAX_NAME_LEN];
48 int pages;
49 int areas;
50 int len;
51 int level;
52 struct debug_view *view;
53 debug_info_t *id;
54};
55
56#define QETH_DBF_CTRL_LEN 256
57
58#define QETH_DBF_TEXT(name, level, text) \
59 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
60
61#define QETH_DBF_HEX(name, level, addr, len) \
62 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
63
64#define QETH_DBF_MESSAGE(level, text...) \
65 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
66
67#define QETH_DBF_TEXT_(name, level, text...) \
68 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
69
70#define QETH_CARD_TEXT(card, level, text) \
71 debug_text_event(card->debug, level, text)
72
73#define QETH_CARD_HEX(card, level, addr, len) \
74 debug_event(card->debug, level, (void *)(addr), len)
75
76#define QETH_CARD_MESSAGE(card, text...) \
77 debug_sprintf_event(card->debug, level, text)
78
79#define QETH_CARD_TEXT_(card, level, text...) \
80 qeth_dbf_longtext(card->debug, level, text)
81
82#define SENSE_COMMAND_REJECT_BYTE 0
83#define SENSE_COMMAND_REJECT_FLAG 0x80
84#define SENSE_RESETTING_EVENT_BYTE 1
85#define SENSE_RESETTING_EVENT_FLAG 0x80
86
87/*
88 * Common IO related definitions
89 */
90#define CARD_RDEV(card) card->read.ccwdev
91#define CARD_WDEV(card) card->write.ccwdev
92#define CARD_DDEV(card) card->data.ccwdev
93#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
94#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
95#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
96#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
97#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
98
99/**
100 * card stuff
101 */
102struct qeth_perf_stats {
103 unsigned int bufs_rec;
104 unsigned int bufs_sent;
105
106 unsigned int skbs_sent_pack;
107 unsigned int bufs_sent_pack;
108
109 unsigned int sc_dp_p;
110 unsigned int sc_p_dp;
111 /* qdio_cq_handler: number of times called, time spent in */
112 __u64 cq_start_time;
113 unsigned int cq_cnt;
114 unsigned int cq_time;
115 /* qdio_input_handler: number of times called, time spent in */
116 __u64 inbound_start_time;
117 unsigned int inbound_cnt;
118 unsigned int inbound_time;
119 /* qeth_send_packet: number of times called, time spent in */
120 __u64 outbound_start_time;
121 unsigned int outbound_cnt;
122 unsigned int outbound_time;
123 /* qdio_output_handler: number of times called, time spent in */
124 __u64 outbound_handler_start_time;
125 unsigned int outbound_handler_cnt;
126 unsigned int outbound_handler_time;
127 /* number of calls to and time spent in do_QDIO for inbound queue */
128 __u64 inbound_do_qdio_start_time;
129 unsigned int inbound_do_qdio_cnt;
130 unsigned int inbound_do_qdio_time;
131 /* number of calls to and time spent in do_QDIO for outbound queues */
132 __u64 outbound_do_qdio_start_time;
133 unsigned int outbound_do_qdio_cnt;
134 unsigned int outbound_do_qdio_time;
135 unsigned int large_send_bytes;
136 unsigned int large_send_cnt;
137 unsigned int sg_skbs_sent;
138 unsigned int sg_frags_sent;
139 /* initial values when measuring starts */
140 unsigned long initial_rx_packets;
141 unsigned long initial_tx_packets;
142 /* inbound scatter gather data */
143 unsigned int sg_skbs_rx;
144 unsigned int sg_frags_rx;
145 unsigned int sg_alloc_page_rx;
146 unsigned int tx_csum;
147 unsigned int tx_lin;
148};
149
150/* Routing stuff */
151struct qeth_routing_info {
152 enum qeth_routing_types type;
153};
154
155/* IPA stuff */
156struct qeth_ipa_info {
157 __u32 supported_funcs;
158 __u32 enabled_funcs;
159};
160
161static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
162 enum qeth_ipa_funcs func)
163{
164 return (ipa->supported_funcs & func);
165}
166
167static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
168 enum qeth_ipa_funcs func)
169{
170 return (ipa->supported_funcs & ipa->enabled_funcs & func);
171}
172
173#define qeth_adp_supported(c, f) \
174 qeth_is_ipa_supported(&c->options.adp, f)
175#define qeth_adp_enabled(c, f) \
176 qeth_is_ipa_enabled(&c->options.adp, f)
177#define qeth_is_supported(c, f) \
178 qeth_is_ipa_supported(&c->options.ipa4, f)
179#define qeth_is_enabled(c, f) \
180 qeth_is_ipa_enabled(&c->options.ipa4, f)
181#define qeth_is_supported6(c, f) \
182 qeth_is_ipa_supported(&c->options.ipa6, f)
183#define qeth_is_enabled6(c, f) \
184 qeth_is_ipa_enabled(&c->options.ipa6, f)
185#define qeth_is_ipafunc_supported(c, prot, f) \
186 ((prot == QETH_PROT_IPV6) ? \
187 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
188#define qeth_is_ipafunc_enabled(c, prot, f) \
189 ((prot == QETH_PROT_IPV6) ? \
190 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
191
192#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
193#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
194
195#define QETH_MODELLIST_ARRAY \
196 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
197 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
198 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
199 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
200 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
201 {0, 0, 0, 0, 0, 0} }
202#define QETH_CU_TYPE_IND 0
203#define QETH_CU_MODEL_IND 1
204#define QETH_DEV_TYPE_IND 2
205#define QETH_DEV_MODEL_IND 3
206#define QETH_QUEUE_NO_IND 4
207#define QETH_MULTICAST_IND 5
208
209#define QETH_REAL_CARD 1
210#define QETH_VLAN_CARD 2
211#define QETH_BUFSIZE 4096
212
213/**
214 * some more defs
215 */
216#define QETH_TX_TIMEOUT 100 * HZ
217#define QETH_RCD_TIMEOUT 60 * HZ
218#define QETH_RECLAIM_WORK_TIME HZ
219#define QETH_HEADER_SIZE 32
220#define QETH_MAX_PORTNO 15
221
222/*IPv6 address autoconfiguration stuff*/
223#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
224#define UNIQUE_ID_NOT_BY_CARD 0x10000
225
226/*****************************************************************************/
227/* QDIO queue and buffer handling */
228/*****************************************************************************/
229#define QETH_MAX_QUEUES 4
230#define QETH_IN_BUF_SIZE_DEFAULT 65536
231#define QETH_IN_BUF_COUNT_DEFAULT 64
232#define QETH_IN_BUF_COUNT_HSDEFAULT 128
233#define QETH_IN_BUF_COUNT_MIN 8
234#define QETH_IN_BUF_COUNT_MAX 128
235#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
236#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
237 ((card)->qdio.in_buf_pool.buf_count / 2)
238
239/* buffers we have to be behind before we get a PCI */
240#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
241/*enqueued free buffers left before we get a PCI*/
242#define QETH_PCI_THRESHOLD_B(card) 0
243/*not used unless the microcode gets patched*/
244#define QETH_PCI_TIMER_VALUE(card) 3
245
246/* priority queing */
247#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
248#define QETH_DEFAULT_QUEUE 2
249#define QETH_NO_PRIO_QUEUEING 0
250#define QETH_PRIO_Q_ING_PREC 1
251#define QETH_PRIO_Q_ING_TOS 2
252#define IP_TOS_LOWDELAY 0x10
253#define IP_TOS_HIGHTHROUGHPUT 0x08
254#define IP_TOS_HIGHRELIABILITY 0x04
255#define IP_TOS_NOTIMPORTANT 0x02
256
257/* Packing */
258#define QETH_LOW_WATERMARK_PACK 2
259#define QETH_HIGH_WATERMARK_PACK 5
260#define QETH_WATERMARK_PACK_FUZZ 1
261
262#define QETH_IP_HEADER_SIZE 40
263
264/* large receive scatter gather copy break */
265#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
266#define QETH_RX_PULL_LEN 256
267
268struct qeth_hdr_layer3 {
269 __u8 id;
270 __u8 flags;
271 __u16 inbound_checksum; /*TSO:__u16 seqno */
272 __u32 token; /*TSO: __u32 reserved */
273 __u16 length;
274 __u8 vlan_prio;
275 __u8 ext_flags;
276 __u16 vlan_id;
277 __u16 frame_offset;
278 __u8 dest_addr[16];
279} __attribute__ ((packed));
280
281struct qeth_hdr_layer2 {
282 __u8 id;
283 __u8 flags[3];
284 __u8 port_no;
285 __u8 hdr_length;
286 __u16 pkt_length;
287 __u16 seq_no;
288 __u16 vlan_id;
289 __u32 reserved;
290 __u8 reserved2[16];
291} __attribute__ ((packed));
292
293struct qeth_hdr_osn {
294 __u8 id;
295 __u8 reserved;
296 __u16 seq_no;
297 __u16 reserved2;
298 __u16 control_flags;
299 __u16 pdu_length;
300 __u8 reserved3[18];
301 __u32 ccid;
302} __attribute__ ((packed));
303
304struct qeth_hdr {
305 union {
306 struct qeth_hdr_layer2 l2;
307 struct qeth_hdr_layer3 l3;
308 struct qeth_hdr_osn osn;
309 } hdr;
310} __attribute__ ((packed));
311
312/*TCP Segmentation Offload header*/
313struct qeth_hdr_ext_tso {
314 __u16 hdr_tot_len;
315 __u8 imb_hdr_no;
316 __u8 reserved;
317 __u8 hdr_type;
318 __u8 hdr_version;
319 __u16 hdr_len;
320 __u32 payload_len;
321 __u16 mss;
322 __u16 dg_hdr_len;
323 __u8 padding[16];
324} __attribute__ ((packed));
325
326struct qeth_hdr_tso {
327 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
328 struct qeth_hdr_ext_tso ext;
329} __attribute__ ((packed));
330
331
332/* flags for qeth_hdr.flags */
333#define QETH_HDR_PASSTHRU 0x10
334#define QETH_HDR_IPV6 0x80
335#define QETH_HDR_CAST_MASK 0x07
336enum qeth_cast_flags {
337 QETH_CAST_UNICAST = 0x06,
338 QETH_CAST_MULTICAST = 0x04,
339 QETH_CAST_BROADCAST = 0x05,
340 QETH_CAST_ANYCAST = 0x07,
341 QETH_CAST_NOCAST = 0x00,
342};
343
344enum qeth_layer2_frame_flags {
345 QETH_LAYER2_FLAG_MULTICAST = 0x01,
346 QETH_LAYER2_FLAG_BROADCAST = 0x02,
347 QETH_LAYER2_FLAG_UNICAST = 0x04,
348 QETH_LAYER2_FLAG_VLAN = 0x10,
349};
350
351enum qeth_header_ids {
352 QETH_HEADER_TYPE_LAYER3 = 0x01,
353 QETH_HEADER_TYPE_LAYER2 = 0x02,
354 QETH_HEADER_TYPE_TSO = 0x03,
355 QETH_HEADER_TYPE_OSN = 0x04,
356};
357/* flags for qeth_hdr.ext_flags */
358#define QETH_HDR_EXT_VLAN_FRAME 0x01
359#define QETH_HDR_EXT_TOKEN_ID 0x02
360#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
361#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
362#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
363#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
364#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
365
366static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
367{
368 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
369}
370
371enum qeth_qdio_buffer_states {
372 /*
373 * inbound: read out by driver; owned by hardware in order to be filled
374 * outbound: owned by driver in order to be filled
375 */
376 QETH_QDIO_BUF_EMPTY,
377 /*
378 * inbound: filled by hardware; owned by driver in order to be read out
379 * outbound: filled by driver; owned by hardware in order to be sent
380 */
381 QETH_QDIO_BUF_PRIMED,
382 /*
383 * inbound: not applicable
384 * outbound: identified to be pending in TPQ
385 */
386 QETH_QDIO_BUF_PENDING,
387 /*
388 * inbound: not applicable
389 * outbound: found in completion queue
390 */
391 QETH_QDIO_BUF_IN_CQ,
392 /*
393 * inbound: not applicable
394 * outbound: handled via transfer pending / completion queue
395 */
396 QETH_QDIO_BUF_HANDLED_DELAYED,
397};
398
399enum qeth_qdio_info_states {
400 QETH_QDIO_UNINITIALIZED,
401 QETH_QDIO_ALLOCATED,
402 QETH_QDIO_ESTABLISHED,
403 QETH_QDIO_CLEANING
404};
405
406struct qeth_buffer_pool_entry {
407 struct list_head list;
408 struct list_head init_list;
409 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
410};
411
412struct qeth_qdio_buffer_pool {
413 struct list_head entry_list;
414 int buf_count;
415};
416
417struct qeth_qdio_buffer {
418 struct qdio_buffer *buffer;
419 /* the buffer pool entry currently associated to this buffer */
420 struct qeth_buffer_pool_entry *pool_entry;
421 struct sk_buff *rx_skb;
422};
423
424struct qeth_qdio_q {
425 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
426 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
427 int next_buf_to_init;
428} __attribute__ ((aligned(256)));
429
430struct qeth_qdio_out_buffer {
431 struct qdio_buffer *buffer;
432 atomic_t state;
433 int next_element_to_fill;
434 struct sk_buff_head skb_list;
435 int is_header[16];
436
437 struct qaob *aob;
438 struct qeth_qdio_out_q *q;
439 struct qeth_qdio_out_buffer *next_pending;
440};
441
442struct qeth_card;
443
444enum qeth_out_q_states {
445 QETH_OUT_Q_UNLOCKED,
446 QETH_OUT_Q_LOCKED,
447 QETH_OUT_Q_LOCKED_FLUSH,
448};
449
450struct qeth_qdio_out_q {
451 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
452 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
453 struct qdio_outbuf_state *bufstates; /* convenience pointer */
454 int queue_no;
455 struct qeth_card *card;
456 atomic_t state;
457 int do_pack;
458 /*
459 * index of buffer to be filled by driver; state EMPTY or PACKING
460 */
461 int next_buf_to_fill;
462 /*
463 * number of buffers that are currently filled (PRIMED)
464 * -> these buffers are hardware-owned
465 */
466 atomic_t used_buffers;
467 /* indicates whether PCI flag must be set (or if one is outstanding) */
468 atomic_t set_pci_flags_count;
469} __attribute__ ((aligned(256)));
470
471struct qeth_qdio_info {
472 atomic_t state;
473 /* input */
474 int no_in_queues;
475 struct qeth_qdio_q *in_q;
476 struct qeth_qdio_q *c_q;
477 struct qeth_qdio_buffer_pool in_buf_pool;
478 struct qeth_qdio_buffer_pool init_pool;
479 int in_buf_size;
480
481 /* output */
482 int no_out_queues;
483 struct qeth_qdio_out_q **out_qs;
484 struct qdio_outbuf_state *out_bufstates;
485
486 /* priority queueing */
487 int do_prio_queueing;
488 int default_out_queue;
489};
490
491enum qeth_send_errors {
492 QETH_SEND_ERROR_NONE,
493 QETH_SEND_ERROR_LINK_FAILURE,
494 QETH_SEND_ERROR_RETRY,
495 QETH_SEND_ERROR_KICK_IT,
496};
497
498#define QETH_ETH_MAC_V4 0x0100 /* like v4 */
499#define QETH_ETH_MAC_V6 0x3333 /* like v6 */
500/* tr mc mac is longer, but that will be enough to detect mc frames */
501#define QETH_TR_MAC_NC 0xc000 /* non-canonical */
502#define QETH_TR_MAC_C 0x0300 /* canonical */
503
504#define DEFAULT_ADD_HHLEN 0
505#define MAX_ADD_HHLEN 1024
506
507/**
508 * buffer stuff for read channel
509 */
510#define QETH_CMD_BUFFER_NO 8
511
512/**
513 * channel state machine
514 */
515enum qeth_channel_states {
516 CH_STATE_UP,
517 CH_STATE_DOWN,
518 CH_STATE_ACTIVATING,
519 CH_STATE_HALTED,
520 CH_STATE_STOPPED,
521 CH_STATE_RCD,
522 CH_STATE_RCD_DONE,
523};
524/**
525 * card state machine
526 */
527enum qeth_card_states {
528 CARD_STATE_DOWN,
529 CARD_STATE_HARDSETUP,
530 CARD_STATE_SOFTSETUP,
531 CARD_STATE_UP,
532 CARD_STATE_RECOVER,
533};
534
535/**
536 * Protocol versions
537 */
538enum qeth_prot_versions {
539 QETH_PROT_IPV4 = 0x0004,
540 QETH_PROT_IPV6 = 0x0006,
541};
542
543enum qeth_ip_types {
544 QETH_IP_TYPE_NORMAL,
545 QETH_IP_TYPE_VIPA,
546 QETH_IP_TYPE_RXIP,
547 QETH_IP_TYPE_DEL_ALL_MC,
548};
549
550enum qeth_cmd_buffer_state {
551 BUF_STATE_FREE,
552 BUF_STATE_LOCKED,
553 BUF_STATE_PROCESSED,
554};
555
556enum qeth_cq {
557 QETH_CQ_DISABLED = 0,
558 QETH_CQ_ENABLED = 1,
559 QETH_CQ_NOTAVAILABLE = 2,
560};
561
562struct qeth_ipato {
563 int enabled;
564 int invert4;
565 int invert6;
566 struct list_head entries;
567};
568
569struct qeth_channel;
570
571struct qeth_cmd_buffer {
572 enum qeth_cmd_buffer_state state;
573 struct qeth_channel *channel;
574 unsigned char *data;
575 int rc;
576 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
577};
578
579/**
580 * definition of a qeth channel, used for read and write
581 */
582struct qeth_channel {
583 enum qeth_channel_states state;
584 struct ccw1 ccw;
585 spinlock_t iob_lock;
586 wait_queue_head_t wait_q;
587 struct tasklet_struct irq_tasklet;
588 struct ccw_device *ccwdev;
589/*command buffer for control data*/
590 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
591 atomic_t irq_pending;
592 int io_buf_no;
593 int buf_no;
594};
595
596/**
597 * OSA card related definitions
598 */
599struct qeth_token {
600 __u32 issuer_rm_w;
601 __u32 issuer_rm_r;
602 __u32 cm_filter_w;
603 __u32 cm_filter_r;
604 __u32 cm_connection_w;
605 __u32 cm_connection_r;
606 __u32 ulp_filter_w;
607 __u32 ulp_filter_r;
608 __u32 ulp_connection_w;
609 __u32 ulp_connection_r;
610};
611
612struct qeth_seqno {
613 __u32 trans_hdr;
614 __u32 pdu_hdr;
615 __u32 pdu_hdr_ack;
616 __u16 ipa;
617 __u32 pkt_seqno;
618};
619
620struct qeth_reply {
621 struct list_head list;
622 wait_queue_head_t wait_q;
623 int (*callback)(struct qeth_card *, struct qeth_reply *,
624 unsigned long);
625 u32 seqno;
626 unsigned long offset;
627 atomic_t received;
628 int rc;
629 void *param;
630 struct qeth_card *card;
631 atomic_t refcnt;
632};
633
634
635struct qeth_card_blkt {
636 int time_total;
637 int inter_packet;
638 int inter_packet_jumbo;
639};
640
641#define QETH_BROADCAST_WITH_ECHO 0x01
642#define QETH_BROADCAST_WITHOUT_ECHO 0x02
643#define QETH_LAYER2_MAC_READ 0x01
644#define QETH_LAYER2_MAC_REGISTERED 0x02
645struct qeth_card_info {
646 unsigned short unit_addr2;
647 unsigned short cula;
648 unsigned short chpid;
649 __u16 func_level;
650 char mcl_level[QETH_MCL_LENGTH + 1];
651 int guestlan;
652 int mac_bits;
653 int portname_required;
654 int portno;
655 char portname[9];
656 enum qeth_card_types type;
657 enum qeth_link_types link_type;
658 int is_multicast_different;
659 int initial_mtu;
660 int max_mtu;
661 int broadcast_capable;
662 int unique_id;
663 struct qeth_card_blkt blkt;
664 __u32 csum_mask;
665 __u32 tx_csum_mask;
666 enum qeth_ipa_promisc_modes promisc_mode;
667 __u32 diagass_support;
668 __u32 hwtrap;
669};
670
671struct qeth_card_options {
672 struct qeth_routing_info route4;
673 struct qeth_ipa_info ipa4;
674 struct qeth_ipa_info adp; /*Adapter parameters*/
675 struct qeth_routing_info route6;
676 struct qeth_ipa_info ipa6;
677 int fake_broadcast;
678 int add_hhlen;
679 int layer2;
680 int performance_stats;
681 int rx_sg_cb;
682 enum qeth_ipa_isolation_modes isolation;
683 int sniffer;
684 enum qeth_cq cq;
685 char hsuid[9];
686};
687
688/*
689 * thread bits for qeth_card thread masks
690 */
691enum qeth_threads {
692 QETH_RECOVER_THREAD = 1,
693};
694
695struct qeth_osn_info {
696 int (*assist_cb)(struct net_device *dev, void *data);
697 int (*data_cb)(struct sk_buff *skb);
698};
699
700enum qeth_discipline_id {
701 QETH_DISCIPLINE_LAYER3 = 0,
702 QETH_DISCIPLINE_LAYER2 = 1,
703};
704
705struct qeth_discipline {
706 void (*start_poll)(struct ccw_device *, int, unsigned long);
707 qdio_handler_t *input_handler;
708 qdio_handler_t *output_handler;
709 int (*recover)(void *ptr);
710 int (*setup) (struct ccwgroup_device *);
711 void (*remove) (struct ccwgroup_device *);
712 int (*set_online) (struct ccwgroup_device *);
713 int (*set_offline) (struct ccwgroup_device *);
714 void (*shutdown)(struct ccwgroup_device *);
715 int (*prepare) (struct ccwgroup_device *);
716 void (*complete) (struct ccwgroup_device *);
717 int (*freeze)(struct ccwgroup_device *);
718 int (*thaw) (struct ccwgroup_device *);
719 int (*restore)(struct ccwgroup_device *);
720};
721
722struct qeth_vlan_vid {
723 struct list_head list;
724 unsigned short vid;
725};
726
727struct qeth_mc_mac {
728 struct list_head list;
729 __u8 mc_addr[MAX_ADDR_LEN];
730 unsigned char mc_addrlen;
731 int is_vmac;
732};
733
734struct qeth_rx {
735 int b_count;
736 int b_index;
737 struct qdio_buffer_element *b_element;
738 int e_offset;
739 int qdio_err;
740};
741
742#define QETH_NAPI_WEIGHT 128
743
744struct qeth_card {
745 struct list_head list;
746 enum qeth_card_states state;
747 int lan_online;
748 spinlock_t lock;
749 struct ccwgroup_device *gdev;
750 struct qeth_channel read;
751 struct qeth_channel write;
752 struct qeth_channel data;
753
754 struct net_device *dev;
755 struct net_device_stats stats;
756
757 struct qeth_card_info info;
758 struct qeth_token token;
759 struct qeth_seqno seqno;
760 struct qeth_card_options options;
761
762 wait_queue_head_t wait_q;
763 spinlock_t vlanlock;
764 spinlock_t mclock;
765 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
766 struct list_head vid_list;
767 struct list_head mc_list;
768 struct work_struct kernel_thread_starter;
769 spinlock_t thread_mask_lock;
770 unsigned long thread_start_mask;
771 unsigned long thread_allowed_mask;
772 unsigned long thread_running_mask;
773 spinlock_t ip_lock;
774 struct list_head ip_list;
775 struct list_head *ip_tbd_list;
776 struct qeth_ipato ipato;
777 struct list_head cmd_waiter_list;
778 /* QDIO buffer handling */
779 struct qeth_qdio_info qdio;
780 struct qeth_perf_stats perf_stats;
781 int read_or_write_problem;
782 struct qeth_osn_info osn_info;
783 struct qeth_discipline *discipline;
784 atomic_t force_alloc_skb;
785 struct service_level qeth_service_level;
786 struct qdio_ssqd_desc ssqd;
787 debug_info_t *debug;
788 struct mutex conf_mutex;
789 struct mutex discipline_mutex;
790 struct napi_struct napi;
791 struct qeth_rx rx;
792 struct delayed_work buffer_reclaim_work;
793 int reclaim_index;
794};
795
796struct qeth_card_list_struct {
797 struct list_head list;
798 rwlock_t rwlock;
799};
800
801struct qeth_trap_id {
802 __u16 lparnr;
803 char vmname[8];
804 __u8 chpid;
805 __u8 ssid;
806 __u16 devno;
807} __packed;
808
809/*some helper functions*/
810#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
811
812static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
813{
814 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
815 dev_get_drvdata(&cdev->dev))->dev);
816 return card;
817}
818
819static inline int qeth_get_micros(void)
820{
821 return (int) (get_clock() >> 12);
822}
823
824static inline int qeth_get_ip_version(struct sk_buff *skb)
825{
826 struct ethhdr *ehdr = (struct ethhdr *)skb->data;
827 switch (ehdr->h_proto) {
828 case ETH_P_IPV6:
829 return 6;
830 case ETH_P_IP:
831 return 4;
832 default:
833 return 0;
834 }
835}
836
837static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
838 struct qeth_buffer_pool_entry *entry)
839{
840 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
841}
842
843static inline int qeth_is_diagass_supported(struct qeth_card *card,
844 enum qeth_diags_cmds cmd)
845{
846 return card->info.diagass_support & (__u32)cmd;
847}
848
849extern struct qeth_discipline qeth_l2_discipline;
850extern struct qeth_discipline qeth_l3_discipline;
851extern const struct attribute_group *qeth_generic_attr_groups[];
852extern const struct attribute_group *qeth_osn_attr_groups[];
853
854const char *qeth_get_cardname_short(struct qeth_card *);
855int qeth_realloc_buffer_pool(struct qeth_card *, int);
856int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
857void qeth_core_free_discipline(struct qeth_card *);
858void qeth_buffer_reclaim_work(struct work_struct *);
859
860/* exports for qeth discipline device drivers */
861extern struct qeth_card_list_struct qeth_core_card_list;
862extern struct kmem_cache *qeth_core_header_cache;
863extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
864
865void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
866int qeth_threads_running(struct qeth_card *, unsigned long);
867int qeth_wait_for_threads(struct qeth_card *, unsigned long);
868int qeth_do_run_thread(struct qeth_card *, unsigned long);
869void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
870void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
871int qeth_core_hardsetup_card(struct qeth_card *);
872void qeth_print_status_message(struct qeth_card *);
873int qeth_init_qdio_queues(struct qeth_card *);
874int qeth_send_startlan(struct qeth_card *);
875int qeth_send_stoplan(struct qeth_card *);
876int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
877 int (*reply_cb)
878 (struct qeth_card *, struct qeth_reply *, unsigned long),
879 void *);
880struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
881 enum qeth_ipa_cmds, enum qeth_prot_versions);
882int qeth_query_setadapterparms(struct qeth_card *);
883int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
884 unsigned int, const char *);
885void qeth_queue_input_buffer(struct qeth_card *, int);
886struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
887 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
888 struct qeth_hdr **);
889void qeth_schedule_recovery(struct qeth_card *);
890void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
891void qeth_qdio_input_handler(struct ccw_device *,
892 unsigned int, unsigned int, int,
893 int, unsigned long);
894void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
895 int, int, int, unsigned long);
896void qeth_clear_ipacmd_list(struct qeth_card *);
897int qeth_qdio_clear_card(struct qeth_card *, int);
898void qeth_clear_working_pool_list(struct qeth_card *);
899void qeth_clear_cmd_buffers(struct qeth_channel *);
900void qeth_clear_qdio_buffers(struct qeth_card *);
901void qeth_setadp_promisc_mode(struct qeth_card *);
902struct net_device_stats *qeth_get_stats(struct net_device *);
903int qeth_change_mtu(struct net_device *, int);
904int qeth_setadpparms_change_macaddr(struct qeth_card *);
905void qeth_tx_timeout(struct net_device *);
906void qeth_prepare_control_data(struct qeth_card *, int,
907 struct qeth_cmd_buffer *);
908void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
909void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
910struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
911int qeth_mdio_read(struct net_device *, int, int);
912int qeth_snmp_command(struct qeth_card *, char __user *);
913int qeth_query_oat_command(struct qeth_card *, char __user *);
914struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
915int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
916 unsigned long);
917int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
918 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
919 void *reply_param);
920int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
921int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
922int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
923 struct sk_buff *, struct qeth_hdr *, int, int, int);
924int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
925 struct sk_buff *, struct qeth_hdr *, int);
926int qeth_core_get_sset_count(struct net_device *, int);
927void qeth_core_get_ethtool_stats(struct net_device *,
928 struct ethtool_stats *, u64 *);
929void qeth_core_get_strings(struct net_device *, u32, u8 *);
930void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
931void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
932int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
933int qeth_set_access_ctrl_online(struct qeth_card *card);
934int qeth_hdr_chk_and_bounce(struct sk_buff *, int);
935int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
936int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
937int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
938
939/* exports for OSN */
940int qeth_osn_assist(struct net_device *, void *, int);
941int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
942 int (*assist_cb)(struct net_device *, void *),
943 int (*data_cb)(struct sk_buff *));
944void qeth_osn_deregister(struct net_device *);
945
946#endif /* __QETH_CORE_H__ */