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4a71df50 FB |
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> | |
6bcac508 | 34 | #include <asm/sysinfo.h> |
4a71df50 FB |
35 | |
36 | #include "qeth_core_mpc.h" | |
37 | ||
38 | /** | |
39 | * Debug Facility stuff | |
40 | */ | |
d11ba0c4 PT |
41 | enum qeth_dbf_names { |
42 | QETH_DBF_SETUP, | |
43 | QETH_DBF_QERR, | |
44 | QETH_DBF_TRACE, | |
45 | QETH_DBF_MSG, | |
46 | QETH_DBF_SENSE, | |
47 | QETH_DBF_MISC, | |
48 | QETH_DBF_CTRL, | |
49 | QETH_DBF_INFOS /* must be last element */ | |
50 | }; | |
51 | ||
52 | struct qeth_dbf_info { | |
53 | char name[DEBUG_MAX_NAME_LEN]; | |
54 | int pages; | |
55 | int areas; | |
56 | int len; | |
57 | int level; | |
58 | struct debug_view *view; | |
59 | debug_info_t *id; | |
60 | }; | |
61 | ||
62 | #define QETH_DBF_CTRL_LEN 256 | |
4a71df50 FB |
63 | |
64 | #define QETH_DBF_TEXT(name, level, text) \ | |
d11ba0c4 | 65 | debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) |
4a71df50 FB |
66 | |
67 | #define QETH_DBF_HEX(name, level, addr, len) \ | |
d11ba0c4 PT |
68 | debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) |
69 | ||
70 | #define QETH_DBF_MESSAGE(level, text...) \ | |
71 | debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) | |
72 | ||
73 | #define QETH_DBF_TEXT_(name, level, text...) \ | |
cd023216 | 74 | qeth_dbf_longtext(QETH_DBF_##name, level, text) |
4a71df50 | 75 | |
4a71df50 FB |
76 | #define SENSE_COMMAND_REJECT_BYTE 0 |
77 | #define SENSE_COMMAND_REJECT_FLAG 0x80 | |
78 | #define SENSE_RESETTING_EVENT_BYTE 1 | |
79 | #define SENSE_RESETTING_EVENT_FLAG 0x80 | |
80 | ||
81 | /* | |
82 | * Common IO related definitions | |
83 | */ | |
84 | #define CARD_RDEV(card) card->read.ccwdev | |
85 | #define CARD_WDEV(card) card->write.ccwdev | |
86 | #define CARD_DDEV(card) card->data.ccwdev | |
2a0217d5 KS |
87 | #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) |
88 | #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) | |
89 | #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) | |
90 | #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) | |
91 | #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) | |
4a71df50 FB |
92 | |
93 | /** | |
94 | * card stuff | |
95 | */ | |
96 | struct qeth_perf_stats { | |
97 | unsigned int bufs_rec; | |
98 | unsigned int bufs_sent; | |
99 | ||
100 | unsigned int skbs_sent_pack; | |
101 | unsigned int bufs_sent_pack; | |
102 | ||
103 | unsigned int sc_dp_p; | |
104 | unsigned int sc_p_dp; | |
105 | /* qdio_input_handler: number of times called, time spent in */ | |
106 | __u64 inbound_start_time; | |
107 | unsigned int inbound_cnt; | |
108 | unsigned int inbound_time; | |
109 | /* qeth_send_packet: number of times called, time spent in */ | |
110 | __u64 outbound_start_time; | |
111 | unsigned int outbound_cnt; | |
112 | unsigned int outbound_time; | |
113 | /* qdio_output_handler: number of times called, time spent in */ | |
114 | __u64 outbound_handler_start_time; | |
115 | unsigned int outbound_handler_cnt; | |
116 | unsigned int outbound_handler_time; | |
117 | /* number of calls to and time spent in do_QDIO for inbound queue */ | |
118 | __u64 inbound_do_qdio_start_time; | |
119 | unsigned int inbound_do_qdio_cnt; | |
120 | unsigned int inbound_do_qdio_time; | |
121 | /* number of calls to and time spent in do_QDIO for outbound queues */ | |
122 | __u64 outbound_do_qdio_start_time; | |
123 | unsigned int outbound_do_qdio_cnt; | |
124 | unsigned int outbound_do_qdio_time; | |
125 | /* eddp data */ | |
126 | unsigned int large_send_bytes; | |
127 | unsigned int large_send_cnt; | |
128 | unsigned int sg_skbs_sent; | |
129 | unsigned int sg_frags_sent; | |
130 | /* initial values when measuring starts */ | |
131 | unsigned long initial_rx_packets; | |
132 | unsigned long initial_tx_packets; | |
133 | /* inbound scatter gather data */ | |
134 | unsigned int sg_skbs_rx; | |
135 | unsigned int sg_frags_rx; | |
136 | unsigned int sg_alloc_page_rx; | |
137 | }; | |
138 | ||
139 | /* Routing stuff */ | |
140 | struct qeth_routing_info { | |
141 | enum qeth_routing_types type; | |
142 | }; | |
143 | ||
144 | /* IPA stuff */ | |
145 | struct qeth_ipa_info { | |
146 | __u32 supported_funcs; | |
147 | __u32 enabled_funcs; | |
148 | }; | |
149 | ||
150 | static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, | |
151 | enum qeth_ipa_funcs func) | |
152 | { | |
153 | return (ipa->supported_funcs & func); | |
154 | } | |
155 | ||
156 | static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, | |
157 | enum qeth_ipa_funcs func) | |
158 | { | |
159 | return (ipa->supported_funcs & ipa->enabled_funcs & func); | |
160 | } | |
161 | ||
162 | #define qeth_adp_supported(c, f) \ | |
163 | qeth_is_ipa_supported(&c->options.adp, f) | |
164 | #define qeth_adp_enabled(c, f) \ | |
165 | qeth_is_ipa_enabled(&c->options.adp, f) | |
166 | #define qeth_is_supported(c, f) \ | |
167 | qeth_is_ipa_supported(&c->options.ipa4, f) | |
168 | #define qeth_is_enabled(c, f) \ | |
169 | qeth_is_ipa_enabled(&c->options.ipa4, f) | |
170 | #define qeth_is_supported6(c, f) \ | |
171 | qeth_is_ipa_supported(&c->options.ipa6, f) | |
172 | #define qeth_is_enabled6(c, f) \ | |
173 | qeth_is_ipa_enabled(&c->options.ipa6, f) | |
174 | #define qeth_is_ipafunc_supported(c, prot, f) \ | |
175 | ((prot == QETH_PROT_IPV6) ? \ | |
176 | qeth_is_supported6(c, f) : qeth_is_supported(c, f)) | |
177 | #define qeth_is_ipafunc_enabled(c, prot, f) \ | |
178 | ((prot == QETH_PROT_IPV6) ? \ | |
179 | qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) | |
180 | ||
181 | #define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101 | |
182 | #define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101 | |
183 | #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108 | |
184 | #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108 | |
185 | ||
186 | #define QETH_MODELLIST_ARRAY \ | |
187 | {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \ | |
188 | QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ | |
189 | QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ | |
190 | QETH_MAX_QUEUES, 0}, \ | |
191 | {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \ | |
192 | QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \ | |
193 | QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \ | |
194 | QETH_MAX_QUEUES, 0x103}, \ | |
195 | {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \ | |
196 | QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ | |
197 | QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ | |
198 | QETH_MAX_QUEUES, 0}, \ | |
199 | {0, 0, 0, 0, 0, 0, 0, 0, 0} } | |
200 | ||
201 | #define QETH_REAL_CARD 1 | |
202 | #define QETH_VLAN_CARD 2 | |
203 | #define QETH_BUFSIZE 4096 | |
204 | ||
205 | /** | |
206 | * some more defs | |
207 | */ | |
208 | #define QETH_TX_TIMEOUT 100 * HZ | |
209 | #define QETH_RCD_TIMEOUT 60 * HZ | |
210 | #define QETH_HEADER_SIZE 32 | |
211 | #define QETH_MAX_PORTNO 15 | |
212 | ||
213 | /*IPv6 address autoconfiguration stuff*/ | |
214 | #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe | |
215 | #define UNIQUE_ID_NOT_BY_CARD 0x10000 | |
216 | ||
217 | /*****************************************************************************/ | |
218 | /* QDIO queue and buffer handling */ | |
219 | /*****************************************************************************/ | |
220 | #define QETH_MAX_QUEUES 4 | |
221 | #define QETH_IN_BUF_SIZE_DEFAULT 65536 | |
222 | #define QETH_IN_BUF_COUNT_DEFAULT 16 | |
223 | #define QETH_IN_BUF_COUNT_MIN 8 | |
224 | #define QETH_IN_BUF_COUNT_MAX 128 | |
225 | #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) | |
226 | #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ | |
227 | ((card)->qdio.in_buf_pool.buf_count / 2) | |
228 | ||
229 | /* buffers we have to be behind before we get a PCI */ | |
230 | #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) | |
231 | /*enqueued free buffers left before we get a PCI*/ | |
232 | #define QETH_PCI_THRESHOLD_B(card) 0 | |
233 | /*not used unless the microcode gets patched*/ | |
234 | #define QETH_PCI_TIMER_VALUE(card) 3 | |
235 | ||
4a71df50 FB |
236 | /* priority queing */ |
237 | #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING | |
238 | #define QETH_DEFAULT_QUEUE 2 | |
239 | #define QETH_NO_PRIO_QUEUEING 0 | |
240 | #define QETH_PRIO_Q_ING_PREC 1 | |
241 | #define QETH_PRIO_Q_ING_TOS 2 | |
242 | #define IP_TOS_LOWDELAY 0x10 | |
243 | #define IP_TOS_HIGHTHROUGHPUT 0x08 | |
244 | #define IP_TOS_HIGHRELIABILITY 0x04 | |
245 | #define IP_TOS_NOTIMPORTANT 0x02 | |
246 | ||
247 | /* Packing */ | |
248 | #define QETH_LOW_WATERMARK_PACK 2 | |
249 | #define QETH_HIGH_WATERMARK_PACK 5 | |
250 | #define QETH_WATERMARK_PACK_FUZZ 1 | |
251 | ||
252 | #define QETH_IP_HEADER_SIZE 40 | |
253 | ||
254 | /* large receive scatter gather copy break */ | |
255 | #define QETH_RX_SG_CB (PAGE_SIZE >> 1) | |
256 | ||
257 | struct qeth_hdr_layer3 { | |
258 | __u8 id; | |
259 | __u8 flags; | |
260 | __u16 inbound_checksum; /*TSO:__u16 seqno */ | |
261 | __u32 token; /*TSO: __u32 reserved */ | |
262 | __u16 length; | |
263 | __u8 vlan_prio; | |
264 | __u8 ext_flags; | |
265 | __u16 vlan_id; | |
266 | __u16 frame_offset; | |
267 | __u8 dest_addr[16]; | |
268 | } __attribute__ ((packed)); | |
269 | ||
270 | struct qeth_hdr_layer2 { | |
271 | __u8 id; | |
272 | __u8 flags[3]; | |
273 | __u8 port_no; | |
274 | __u8 hdr_length; | |
275 | __u16 pkt_length; | |
276 | __u16 seq_no; | |
277 | __u16 vlan_id; | |
278 | __u32 reserved; | |
279 | __u8 reserved2[16]; | |
280 | } __attribute__ ((packed)); | |
281 | ||
282 | struct qeth_hdr_osn { | |
283 | __u8 id; | |
284 | __u8 reserved; | |
285 | __u16 seq_no; | |
286 | __u16 reserved2; | |
287 | __u16 control_flags; | |
288 | __u16 pdu_length; | |
289 | __u8 reserved3[18]; | |
290 | __u32 ccid; | |
291 | } __attribute__ ((packed)); | |
292 | ||
293 | struct qeth_hdr { | |
294 | union { | |
295 | struct qeth_hdr_layer2 l2; | |
296 | struct qeth_hdr_layer3 l3; | |
297 | struct qeth_hdr_osn osn; | |
298 | } hdr; | |
299 | } __attribute__ ((packed)); | |
300 | ||
301 | /*TCP Segmentation Offload header*/ | |
302 | struct 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 | ||
315 | struct qeth_hdr_tso { | |
316 | struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ | |
317 | struct qeth_hdr_ext_tso ext; | |
318 | } __attribute__ ((packed)); | |
319 | ||
320 | ||
321 | /* flags for qeth_hdr.flags */ | |
322 | #define QETH_HDR_PASSTHRU 0x10 | |
323 | #define QETH_HDR_IPV6 0x80 | |
324 | #define QETH_HDR_CAST_MASK 0x07 | |
325 | enum 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 | ||
333 | enum 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 | ||
340 | enum qeth_header_ids { | |
341 | QETH_HEADER_TYPE_LAYER3 = 0x01, | |
342 | QETH_HEADER_TYPE_LAYER2 = 0x02, | |
343 | QETH_HEADER_TYPE_TSO = 0x03, | |
344 | QETH_HEADER_TYPE_OSN = 0x04, | |
345 | }; | |
346 | /* flags for qeth_hdr.ext_flags */ | |
347 | #define QETH_HDR_EXT_VLAN_FRAME 0x01 | |
348 | #define QETH_HDR_EXT_TOKEN_ID 0x02 | |
349 | #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 | |
350 | #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 | |
351 | #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 | |
352 | #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 | |
353 | #define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/ | |
354 | ||
355 | static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) | |
356 | { | |
357 | return (sbale->flags & SBAL_FLAGS_LAST_ENTRY); | |
358 | } | |
359 | ||
360 | enum qeth_qdio_buffer_states { | |
361 | /* | |
362 | * inbound: read out by driver; owned by hardware in order to be filled | |
363 | * outbound: owned by driver in order to be filled | |
364 | */ | |
365 | QETH_QDIO_BUF_EMPTY, | |
366 | /* | |
367 | * inbound: filled by hardware; owned by driver in order to be read out | |
368 | * outbound: filled by driver; owned by hardware in order to be sent | |
369 | */ | |
370 | QETH_QDIO_BUF_PRIMED, | |
371 | }; | |
372 | ||
373 | enum qeth_qdio_info_states { | |
374 | QETH_QDIO_UNINITIALIZED, | |
375 | QETH_QDIO_ALLOCATED, | |
376 | QETH_QDIO_ESTABLISHED, | |
377 | QETH_QDIO_CLEANING | |
378 | }; | |
379 | ||
380 | struct qeth_buffer_pool_entry { | |
381 | struct list_head list; | |
382 | struct list_head init_list; | |
383 | void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; | |
384 | }; | |
385 | ||
386 | struct qeth_qdio_buffer_pool { | |
387 | struct list_head entry_list; | |
388 | int buf_count; | |
389 | }; | |
390 | ||
391 | struct qeth_qdio_buffer { | |
392 | struct qdio_buffer *buffer; | |
393 | /* the buffer pool entry currently associated to this buffer */ | |
394 | struct qeth_buffer_pool_entry *pool_entry; | |
395 | }; | |
396 | ||
397 | struct qeth_qdio_q { | |
398 | struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; | |
399 | struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; | |
400 | int next_buf_to_init; | |
401 | } __attribute__ ((aligned(256))); | |
402 | ||
403 | /* possible types of qeth large_send support */ | |
404 | enum qeth_large_send_types { | |
405 | QETH_LARGE_SEND_NO, | |
406 | QETH_LARGE_SEND_EDDP, | |
407 | QETH_LARGE_SEND_TSO, | |
408 | }; | |
409 | ||
410 | struct 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; | |
683d718a | 416 | int is_header[16]; |
4a71df50 FB |
417 | }; |
418 | ||
419 | struct qeth_card; | |
420 | ||
421 | enum qeth_out_q_states { | |
422 | QETH_OUT_Q_UNLOCKED, | |
423 | QETH_OUT_Q_LOCKED, | |
424 | QETH_OUT_Q_LOCKED_FLUSH, | |
425 | }; | |
426 | ||
427 | struct 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 | ||
447 | struct 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 | ||
464 | enum 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 | */ | |
488 | enum 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 | */ | |
500 | enum 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 | */ | |
511 | enum qeth_prot_versions { | |
512 | QETH_PROT_IPV4 = 0x0004, | |
513 | QETH_PROT_IPV6 = 0x0006, | |
514 | }; | |
515 | ||
516 | enum 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 | ||
523 | enum qeth_cmd_buffer_state { | |
524 | BUF_STATE_FREE, | |
525 | BUF_STATE_LOCKED, | |
526 | BUF_STATE_PROCESSED, | |
527 | }; | |
528 | ||
529 | struct qeth_ipato { | |
530 | int enabled; | |
531 | int invert4; | |
532 | int invert6; | |
533 | struct list_head entries; | |
534 | }; | |
535 | ||
536 | struct qeth_channel; | |
537 | ||
538 | struct 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 | */ | |
549 | struct 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 | */ | |
566 | struct 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 | ||
579 | struct qeth_seqno { | |
580 | __u32 trans_hdr; | |
581 | __u32 pdu_hdr; | |
582 | __u32 pdu_hdr_ack; | |
583 | __u16 ipa; | |
584 | __u32 pkt_seqno; | |
585 | }; | |
586 | ||
587 | struct 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 | ||
602 | struct 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 | |
612 | struct 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 | enum qeth_ipa_promisc_modes promisc_mode; | |
633 | }; | |
634 | ||
635 | struct qeth_card_options { | |
636 | struct qeth_routing_info route4; | |
637 | struct qeth_ipa_info ipa4; | |
638 | struct qeth_ipa_info adp; /*Adapter parameters*/ | |
639 | struct qeth_routing_info route6; | |
640 | struct qeth_ipa_info ipa6; | |
641 | enum qeth_checksum_types checksum_type; | |
642 | int broadcast_mode; | |
643 | int macaddr_mode; | |
644 | int fake_broadcast; | |
645 | int add_hhlen; | |
646 | int fake_ll; | |
647 | int layer2; | |
648 | enum qeth_large_send_types large_send; | |
649 | int performance_stats; | |
650 | int rx_sg_cb; | |
651 | }; | |
652 | ||
653 | /* | |
654 | * thread bits for qeth_card thread masks | |
655 | */ | |
656 | enum qeth_threads { | |
657 | QETH_RECOVER_THREAD = 1, | |
658 | }; | |
659 | ||
660 | struct qeth_osn_info { | |
661 | int (*assist_cb)(struct net_device *dev, void *data); | |
662 | int (*data_cb)(struct sk_buff *skb); | |
663 | }; | |
664 | ||
665 | enum qeth_discipline_id { | |
666 | QETH_DISCIPLINE_LAYER3 = 0, | |
667 | QETH_DISCIPLINE_LAYER2 = 1, | |
668 | }; | |
669 | ||
670 | struct qeth_discipline { | |
671 | qdio_handler_t *input_handler; | |
672 | qdio_handler_t *output_handler; | |
673 | int (*recover)(void *ptr); | |
674 | struct ccwgroup_driver *ccwgdriver; | |
675 | }; | |
676 | ||
677 | struct qeth_vlan_vid { | |
678 | struct list_head list; | |
679 | unsigned short vid; | |
680 | }; | |
681 | ||
682 | struct qeth_mc_mac { | |
683 | struct list_head list; | |
684 | __u8 mc_addr[MAX_ADDR_LEN]; | |
685 | unsigned char mc_addrlen; | |
7db2266a | 686 | int is_vmac; |
4a71df50 FB |
687 | }; |
688 | ||
689 | struct qeth_card { | |
690 | struct list_head list; | |
691 | enum qeth_card_states state; | |
692 | int lan_online; | |
693 | spinlock_t lock; | |
694 | struct ccwgroup_device *gdev; | |
695 | struct qeth_channel read; | |
696 | struct qeth_channel write; | |
697 | struct qeth_channel data; | |
698 | ||
699 | struct net_device *dev; | |
700 | struct net_device_stats stats; | |
701 | ||
702 | struct qeth_card_info info; | |
703 | struct qeth_token token; | |
704 | struct qeth_seqno seqno; | |
705 | struct qeth_card_options options; | |
706 | ||
707 | wait_queue_head_t wait_q; | |
708 | spinlock_t vlanlock; | |
709 | spinlock_t mclock; | |
710 | struct vlan_group *vlangrp; | |
711 | struct list_head vid_list; | |
712 | struct list_head mc_list; | |
713 | struct work_struct kernel_thread_starter; | |
714 | spinlock_t thread_mask_lock; | |
715 | unsigned long thread_start_mask; | |
716 | unsigned long thread_allowed_mask; | |
717 | unsigned long thread_running_mask; | |
718 | spinlock_t ip_lock; | |
719 | struct list_head ip_list; | |
720 | struct list_head *ip_tbd_list; | |
721 | struct qeth_ipato ipato; | |
722 | struct list_head cmd_waiter_list; | |
723 | /* QDIO buffer handling */ | |
724 | struct qeth_qdio_info qdio; | |
725 | struct qeth_perf_stats perf_stats; | |
726 | int use_hard_stop; | |
727 | struct qeth_osn_info osn_info; | |
728 | struct qeth_discipline discipline; | |
729 | atomic_t force_alloc_skb; | |
6bcac508 | 730 | struct service_level qeth_service_level; |
4a71df50 FB |
731 | }; |
732 | ||
733 | struct qeth_card_list_struct { | |
734 | struct list_head list; | |
735 | rwlock_t rwlock; | |
736 | }; | |
737 | ||
738 | /*some helper functions*/ | |
739 | #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") | |
740 | ||
741 | static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev) | |
742 | { | |
743 | struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *) | |
744 | dev_get_drvdata(&cdev->dev))->dev); | |
745 | return card; | |
746 | } | |
747 | ||
748 | static inline int qeth_get_micros(void) | |
749 | { | |
750 | return (int) (get_clock() >> 12); | |
751 | } | |
752 | ||
4a71df50 FB |
753 | static inline int qeth_get_ip_version(struct sk_buff *skb) |
754 | { | |
755 | switch (skb->protocol) { | |
756 | case ETH_P_IPV6: | |
757 | return 6; | |
758 | case ETH_P_IP: | |
759 | return 4; | |
760 | default: | |
761 | return 0; | |
762 | } | |
763 | } | |
764 | ||
f90b744e FB |
765 | static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, |
766 | struct qeth_buffer_pool_entry *entry) | |
767 | { | |
768 | list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); | |
769 | } | |
770 | ||
4a71df50 FB |
771 | struct qeth_eddp_context; |
772 | extern struct ccwgroup_driver qeth_l2_ccwgroup_driver; | |
773 | extern struct ccwgroup_driver qeth_l3_ccwgroup_driver; | |
774 | const char *qeth_get_cardname_short(struct qeth_card *); | |
775 | int qeth_realloc_buffer_pool(struct qeth_card *, int); | |
776 | int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); | |
777 | void qeth_core_free_discipline(struct qeth_card *); | |
778 | int qeth_core_create_device_attributes(struct device *); | |
779 | void qeth_core_remove_device_attributes(struct device *); | |
780 | int qeth_core_create_osn_attributes(struct device *); | |
781 | void qeth_core_remove_osn_attributes(struct device *); | |
782 | ||
783 | /* exports for qeth discipline device drivers */ | |
784 | extern struct qeth_card_list_struct qeth_core_card_list; | |
683d718a | 785 | extern struct kmem_cache *qeth_core_header_cache; |
d11ba0c4 | 786 | extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; |
4a71df50 FB |
787 | |
788 | void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); | |
789 | int qeth_threads_running(struct qeth_card *, unsigned long); | |
790 | int qeth_wait_for_threads(struct qeth_card *, unsigned long); | |
791 | int qeth_do_run_thread(struct qeth_card *, unsigned long); | |
792 | void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); | |
793 | void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); | |
794 | int qeth_core_hardsetup_card(struct qeth_card *); | |
795 | void qeth_print_status_message(struct qeth_card *); | |
796 | int qeth_init_qdio_queues(struct qeth_card *); | |
797 | int qeth_send_startlan(struct qeth_card *); | |
798 | int qeth_send_stoplan(struct qeth_card *); | |
799 | int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, | |
800 | int (*reply_cb) | |
801 | (struct qeth_card *, struct qeth_reply *, unsigned long), | |
802 | void *); | |
803 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, | |
804 | enum qeth_ipa_cmds, enum qeth_prot_versions); | |
805 | int qeth_query_setadapterparms(struct qeth_card *); | |
779e6e1c | 806 | int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int, const char *); |
4a71df50 FB |
807 | void qeth_queue_input_buffer(struct qeth_card *, int); |
808 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, | |
809 | struct qdio_buffer *, struct qdio_buffer_element **, int *, | |
810 | struct qeth_hdr **); | |
811 | void qeth_schedule_recovery(struct qeth_card *); | |
812 | void qeth_qdio_output_handler(struct ccw_device *, unsigned int, | |
779e6e1c | 813 | int, int, int, unsigned long); |
4a71df50 FB |
814 | void qeth_clear_ipacmd_list(struct qeth_card *); |
815 | int qeth_qdio_clear_card(struct qeth_card *, int); | |
816 | void qeth_clear_working_pool_list(struct qeth_card *); | |
817 | void qeth_clear_cmd_buffers(struct qeth_channel *); | |
818 | void qeth_clear_qdio_buffers(struct qeth_card *); | |
819 | void qeth_setadp_promisc_mode(struct qeth_card *); | |
820 | struct net_device_stats *qeth_get_stats(struct net_device *); | |
821 | int qeth_change_mtu(struct net_device *, int); | |
822 | int qeth_setadpparms_change_macaddr(struct qeth_card *); | |
823 | void qeth_tx_timeout(struct net_device *); | |
824 | void qeth_prepare_control_data(struct qeth_card *, int, | |
825 | struct qeth_cmd_buffer *); | |
826 | void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); | |
827 | void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); | |
828 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); | |
829 | int qeth_mdio_read(struct net_device *, int, int); | |
830 | int qeth_snmp_command(struct qeth_card *, char __user *); | |
831 | int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types); | |
832 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32); | |
833 | int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *, | |
834 | unsigned long); | |
835 | int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, | |
836 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), | |
837 | void *reply_param); | |
838 | int qeth_get_cast_type(struct qeth_card *, struct sk_buff *); | |
839 | int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); | |
4a71df50 FB |
840 | int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int); |
841 | int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, | |
842 | struct sk_buff *, struct qeth_hdr *, int, | |
683d718a | 843 | struct qeth_eddp_context *, int, int); |
4a71df50 FB |
844 | int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *, |
845 | struct sk_buff *, struct qeth_hdr *, | |
846 | int, struct qeth_eddp_context *); | |
847 | int qeth_core_get_stats_count(struct net_device *); | |
848 | void qeth_core_get_ethtool_stats(struct net_device *, | |
849 | struct ethtool_stats *, u64 *); | |
850 | void qeth_core_get_strings(struct net_device *, u32, u8 *); | |
851 | void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); | |
cd023216 | 852 | void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...); |
3f9975aa | 853 | int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *); |
4a71df50 FB |
854 | |
855 | /* exports for OSN */ | |
856 | int qeth_osn_assist(struct net_device *, void *, int); | |
857 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, | |
858 | int (*assist_cb)(struct net_device *, void *), | |
859 | int (*data_cb)(struct sk_buff *)); | |
860 | void qeth_osn_deregister(struct net_device *); | |
861 | ||
862 | #endif /* __QETH_CORE_H__ */ |