xref: /openbmc/linux/drivers/net/ethernet/ibm/ibmvnic.h (revision 68198dca)
1 /**************************************************************************/
2 /*                                                                        */
3 /*  IBM System i and System p Virtual NIC Device Driver                   */
4 /*  Copyright (C) 2014 IBM Corp.                                          */
5 /*  Santiago Leon (santi_leon@yahoo.com)                                  */
6 /*  Thomas Falcon (tlfalcon@linux.vnet.ibm.com)                           */
7 /*  John Allen (jallen@linux.vnet.ibm.com)                                */
8 /*                                                                        */
9 /*  This program is free software; you can redistribute it and/or modify  */
10 /*  it under the terms of the GNU General Public License as published by  */
11 /*  the Free Software Foundation; either version 2 of the License, or     */
12 /*  (at your option) any later version.                                   */
13 /*                                                                        */
14 /*  This program is distributed in the hope that it will be useful,       */
15 /*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
16 /*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         */
17 /*  GNU General Public License for more details.                          */
18 /*                                                                        */
19 /*  You should have received a copy of the GNU General Public License     */
20 /*  along with this program.                                              */
21 /*                                                                        */
22 /* This module contains the implementation of a virtual ethernet device   */
23 /* for use with IBM i/pSeries LPAR Linux.  It utilizes the logical LAN    */
24 /* option of the RS/6000 Platform Architecture to interface with virtual */
25 /* ethernet NICs that are presented to the partition by the hypervisor.   */
26 /*                                                                        */
27 /**************************************************************************/
28 
29 #define IBMVNIC_NAME		"ibmvnic"
30 #define IBMVNIC_DRIVER_VERSION	"1.0.1"
31 #define IBMVNIC_INVALID_MAP	-1
32 #define IBMVNIC_STATS_TIMEOUT	1
33 #define IBMVNIC_INIT_FAILED	2
34 
35 /* basic structures plus 100 2k buffers */
36 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT	610305
37 
38 /* Initial module_parameters */
39 #define IBMVNIC_RX_WEIGHT		16
40 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
41 #define IBMVNIC_BUFFS_PER_POOL	100
42 #define IBMVNIC_MAX_TX_QUEUES	5
43 
44 #define IBMVNIC_TSO_BUF_SZ	65536
45 #define IBMVNIC_TSO_BUFS	64
46 
47 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
48 #define IBMVNIC_BUFFER_HLEN 500
49 
50 struct ibmvnic_login_buffer {
51 	__be32 len;
52 	__be32 version;
53 #define INITIAL_VERSION_LB 1
54 	__be32 num_txcomp_subcrqs;
55 	__be32 off_txcomp_subcrqs;
56 	__be32 num_rxcomp_subcrqs;
57 	__be32 off_rxcomp_subcrqs;
58 	__be32 login_rsp_ioba;
59 	__be32 login_rsp_len;
60 	__be32 client_data_offset;
61 	__be32 client_data_len;
62 } __packed __aligned(8);
63 
64 struct ibmvnic_login_rsp_buffer {
65 	__be32 len;
66 	__be32 version;
67 #define INITIAL_VERSION_LRB 1
68 	__be32 num_txsubm_subcrqs;
69 	__be32 off_txsubm_subcrqs;
70 	__be32 num_rxadd_subcrqs;
71 	__be32 off_rxadd_subcrqs;
72 	__be32 off_rxadd_buff_size;
73 	__be32 num_supp_tx_desc;
74 	__be32 off_supp_tx_desc;
75 } __packed __aligned(8);
76 
77 struct ibmvnic_query_ip_offload_buffer {
78 	__be32 len;
79 	__be32 version;
80 #define INITIAL_VERSION_IOB 1
81 	u8 ipv4_chksum;
82 	u8 ipv6_chksum;
83 	u8 tcp_ipv4_chksum;
84 	u8 tcp_ipv6_chksum;
85 	u8 udp_ipv4_chksum;
86 	u8 udp_ipv6_chksum;
87 	u8 large_tx_ipv4;
88 	u8 large_tx_ipv6;
89 	u8 large_rx_ipv4;
90 	u8 large_rx_ipv6;
91 	u8 reserved1[14];
92 	__be16 max_ipv4_header_size;
93 	__be16 max_ipv6_header_size;
94 	__be16 max_tcp_header_size;
95 	__be16 max_udp_header_size;
96 	__be32 max_large_tx_size;
97 	__be32 max_large_rx_size;
98 	u8 reserved2[16];
99 	u8 ipv6_extension_header;
100 #define IPV6_EH_NOT_SUPPORTED	0x00
101 #define IPV6_EH_SUPPORTED_LIM	0x01
102 #define IPV6_EH_SUPPORTED	0xFF
103 	u8 tcp_pseudosum_req;
104 #define TCP_PS_NOT_REQUIRED	0x00
105 #define TCP_PS_REQUIRED		0x01
106 	u8 reserved3[30];
107 	__be16 num_ipv6_ext_headers;
108 	__be32 off_ipv6_ext_headers;
109 	u8 reserved4[154];
110 } __packed __aligned(8);
111 
112 struct ibmvnic_control_ip_offload_buffer {
113 	__be32 len;
114 	__be32 version;
115 #define INITIAL_VERSION_IOB 1
116 	u8 ipv4_chksum;
117 	u8 ipv6_chksum;
118 	u8 tcp_ipv4_chksum;
119 	u8 tcp_ipv6_chksum;
120 	u8 udp_ipv4_chksum;
121 	u8 udp_ipv6_chksum;
122 	u8 large_tx_ipv4;
123 	u8 large_tx_ipv6;
124 	u8 bad_packet_rx;
125 	u8 large_rx_ipv4;
126 	u8 large_rx_ipv6;
127 	u8 reserved4[111];
128 } __packed __aligned(8);
129 
130 struct ibmvnic_fw_component {
131 	u8 name[48];
132 	__be32 trace_buff_size;
133 	u8 correlator;
134 	u8 trace_level;
135 	u8 parent_correlator;
136 	u8 error_check_level;
137 	u8 trace_on;
138 	u8 reserved[7];
139 	u8 description[192];
140 } __packed __aligned(8);
141 
142 struct ibmvnic_fw_trace_entry {
143 	__be32 trace_id;
144 	u8 num_valid_data;
145 	u8 reserved[3];
146 	__be64 pmc_registers;
147 	__be64 timebase;
148 	__be64 trace_data[5];
149 } __packed __aligned(8);
150 
151 struct ibmvnic_statistics {
152 	__be32 version;
153 	__be32 promiscuous;
154 	__be64 rx_packets;
155 	__be64 rx_bytes;
156 	__be64 tx_packets;
157 	__be64 tx_bytes;
158 	__be64 ucast_tx_packets;
159 	__be64 ucast_rx_packets;
160 	__be64 mcast_tx_packets;
161 	__be64 mcast_rx_packets;
162 	__be64 bcast_tx_packets;
163 	__be64 bcast_rx_packets;
164 	__be64 align_errors;
165 	__be64 fcs_errors;
166 	__be64 single_collision_frames;
167 	__be64 multi_collision_frames;
168 	__be64 sqe_test_errors;
169 	__be64 deferred_tx;
170 	__be64 late_collisions;
171 	__be64 excess_collisions;
172 	__be64 internal_mac_tx_errors;
173 	__be64 carrier_sense;
174 	__be64 too_long_frames;
175 	__be64 internal_mac_rx_errors;
176 	u8 reserved[72];
177 } __packed __aligned(8);
178 
179 #define NUM_TX_STATS 3
180 struct ibmvnic_tx_queue_stats {
181 	u64 packets;
182 	u64 bytes;
183 	u64 dropped_packets;
184 };
185 
186 #define NUM_RX_STATS 3
187 struct ibmvnic_rx_queue_stats {
188 	u64 packets;
189 	u64 bytes;
190 	u64 interrupts;
191 };
192 
193 struct ibmvnic_acl_buffer {
194 	__be32 len;
195 	__be32 version;
196 #define INITIAL_VERSION_IOB 1
197 	u8 mac_acls_restrict;
198 	u8 vlan_acls_restrict;
199 	u8 reserved1[22];
200 	__be32 num_mac_addrs;
201 	__be32 offset_mac_addrs;
202 	__be32 num_vlan_ids;
203 	__be32 offset_vlan_ids;
204 	u8 reserved2[80];
205 } __packed __aligned(8);
206 
207 /* descriptors have been changed, how should this be defined?  1? 4? */
208 
209 #define IBMVNIC_TX_DESC_VERSIONS 3
210 
211 /* is this still needed? */
212 struct ibmvnic_tx_comp_desc {
213 	u8 first;
214 	u8 num_comps;
215 	__be16 rcs[5];
216 	__be32 correlators[5];
217 } __packed __aligned(8);
218 
219 /* some flags that included in v0 descriptor, which is gone
220  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
221  * and only in some offload_flags variable that doesn't seem
222  * to be used anywhere, can probably be removed?
223  */
224 
225 #define IBMVNIC_TCP_CHKSUM		0x20
226 #define IBMVNIC_UDP_CHKSUM		0x08
227 
228 #define IBMVNIC_MAX_FRAGS_PER_CRQ 3
229 
230 struct ibmvnic_tx_desc {
231 	u8 first;
232 	u8 type;
233 
234 #define IBMVNIC_TX_DESC 0x10
235 	u8 n_crq_elem;
236 	u8 n_sge;
237 	u8 flags1;
238 #define IBMVNIC_TX_COMP_NEEDED		0x80
239 #define IBMVNIC_TX_CHKSUM_OFFLOAD	0x40
240 #define IBMVNIC_TX_LSO			0x20
241 #define IBMVNIC_TX_PROT_TCP		0x10
242 #define IBMVNIC_TX_PROT_UDP		0x08
243 #define IBMVNIC_TX_PROT_IPV4		0x04
244 #define IBMVNIC_TX_PROT_IPV6		0x02
245 #define IBMVNIC_TX_VLAN_PRESENT		0x01
246 	u8 flags2;
247 #define IBMVNIC_TX_VLAN_INSERT		0x80
248 	__be16 mss;
249 	u8 reserved[4];
250 	__be32 correlator;
251 	__be16 vlan_id;
252 	__be16 dma_reg;
253 	__be32 sge_len;
254 	__be64 ioba;
255 } __packed __aligned(8);
256 
257 struct ibmvnic_hdr_desc {
258 	u8 first;
259 	u8 type;
260 #define IBMVNIC_HDR_DESC		0x11
261 	u8 len;
262 	u8 l2_len;
263 	__be16 l3_len;
264 	u8 l4_len;
265 	u8 flag;
266 	u8 data[24];
267 } __packed __aligned(8);
268 
269 struct ibmvnic_hdr_ext_desc {
270 	u8 first;
271 	u8 type;
272 #define IBMVNIC_HDR_EXT_DESC		0x12
273 	u8 len;
274 	u8 data[29];
275 } __packed __aligned(8);
276 
277 struct ibmvnic_sge_desc {
278 	u8 first;
279 	u8 type;
280 #define IBMVNIC_SGE_DESC		0x30
281 	__be16 sge1_dma_reg;
282 	__be32 sge1_len;
283 	__be64 sge1_ioba;
284 	__be16 reserved;
285 	__be16 sge2_dma_reg;
286 	__be32 sge2_len;
287 	__be64 sge2_ioba;
288 } __packed __aligned(8);
289 
290 struct ibmvnic_rx_comp_desc {
291 	u8 first;
292 	u8 flags;
293 #define IBMVNIC_IP_CHKSUM_GOOD		0x80
294 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD	0x40
295 #define IBMVNIC_END_FRAME			0x20
296 #define IBMVNIC_EXACT_MC			0x10
297 #define IBMVNIC_VLAN_STRIPPED			0x08
298 	__be16 off_frame_data;
299 	__be32 len;
300 	__be64 correlator;
301 	__be16 vlan_tci;
302 	__be16 rc;
303 	u8 reserved[12];
304 } __packed __aligned(8);
305 
306 struct ibmvnic_generic_scrq {
307 	u8 first;
308 	u8 reserved[31];
309 } __packed __aligned(8);
310 
311 struct ibmvnic_rx_buff_add_desc {
312 	u8 first;
313 	u8 reserved[7];
314 	__be64 correlator;
315 	__be32 ioba;
316 	u8 map_id;
317 	__be32 len:24;
318 	u8 reserved2[8];
319 } __packed __aligned(8);
320 
321 struct ibmvnic_rc {
322 	u8 code; /* one of enum ibmvnic_rc_codes */
323 	u8 detailed_data[3];
324 } __packed __aligned(4);
325 
326 struct ibmvnic_generic_crq {
327 	u8 first;
328 	u8 cmd;
329 	u8 params[10];
330 	struct ibmvnic_rc rc;
331 } __packed __aligned(8);
332 
333 struct ibmvnic_version_exchange {
334 	u8 first;
335 	u8 cmd;
336 	__be16 version;
337 #define IBMVNIC_INITIAL_VERSION 1
338 	u8 reserved[8];
339 	struct ibmvnic_rc rc;
340 } __packed __aligned(8);
341 
342 struct ibmvnic_capability {
343 	u8 first;
344 	u8 cmd;
345 	__be16 capability; /* one of ibmvnic_capabilities */
346 	__be64 number;
347 	struct ibmvnic_rc rc;
348 } __packed __aligned(8);
349 
350 struct ibmvnic_login {
351 	u8 first;
352 	u8 cmd;
353 	u8 reserved[6];
354 	__be32 ioba;
355 	__be32 len;
356 } __packed __aligned(8);
357 
358 struct ibmvnic_phys_parms {
359 	u8 first;
360 	u8 cmd;
361 	u8 flags1;
362 #define IBMVNIC_EXTERNAL_LOOPBACK	0x80
363 #define IBMVNIC_INTERNAL_LOOPBACK	0x40
364 #define IBMVNIC_PROMISC		0x20
365 #define IBMVNIC_PHYS_LINK_ACTIVE	0x10
366 #define IBMVNIC_AUTONEG_DUPLEX	0x08
367 #define IBMVNIC_FULL_DUPLEX	0x04
368 #define IBMVNIC_HALF_DUPLEX	0x02
369 #define IBMVNIC_CAN_CHG_PHYS_PARMS	0x01
370 	u8 flags2;
371 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
372 	__be32 speed;
373 #define IBMVNIC_AUTONEG		0x80
374 #define IBMVNIC_10MBPS		0x40
375 #define IBMVNIC_100MBPS		0x20
376 #define IBMVNIC_1GBPS		0x10
377 #define IBMVNIC_10GBPS		0x08
378 	__be32 mtu;
379 	struct ibmvnic_rc rc;
380 } __packed __aligned(8);
381 
382 struct ibmvnic_logical_link_state {
383 	u8 first;
384 	u8 cmd;
385 	u8 link_state;
386 #define IBMVNIC_LOGICAL_LNK_DN 0x00
387 #define IBMVNIC_LOGICAL_LNK_UP 0x01
388 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
389 	u8 reserved[9];
390 	struct ibmvnic_rc rc;
391 } __packed __aligned(8);
392 
393 struct ibmvnic_query_ip_offload {
394 	u8 first;
395 	u8 cmd;
396 	u8 reserved[2];
397 	__be32 len;
398 	__be32 ioba;
399 	struct ibmvnic_rc rc;
400 } __packed __aligned(8);
401 
402 struct ibmvnic_control_ip_offload {
403 	u8 first;
404 	u8 cmd;
405 	u8 reserved[2];
406 	__be32 ioba;
407 	__be32 len;
408 	struct ibmvnic_rc rc;
409 } __packed __aligned(8);
410 
411 struct ibmvnic_request_dump_size {
412 	u8 first;
413 	u8 cmd;
414 	u8 reserved[6];
415 	__be32 len;
416 	struct ibmvnic_rc rc;
417 } __packed __aligned(8);
418 
419 struct ibmvnic_request_dump {
420 	u8 first;
421 	u8 cmd;
422 	u8 reserved1[2];
423 	__be32 ioba;
424 	__be32 len;
425 	u8 reserved2[4];
426 } __packed __aligned(8);
427 
428 struct ibmvnic_request_dump_rsp {
429 	u8 first;
430 	u8 cmd;
431 	u8 reserved[6];
432 	__be32 dumped_len;
433 	struct ibmvnic_rc rc;
434 } __packed __aligned(8);
435 
436 struct ibmvnic_request_ras_comp_num {
437 	u8 first;
438 	u8 cmd;
439 	u8 reserved1[2];
440 	__be32 num_components;
441 	u8 reserved2[4];
442 	struct ibmvnic_rc rc;
443 } __packed __aligned(8);
444 
445 struct ibmvnic_request_ras_comps {
446 	u8 first;
447 	u8 cmd;
448 	u8 reserved[2];
449 	__be32 ioba;
450 	__be32 len;
451 	struct ibmvnic_rc rc;
452 } __packed __aligned(8);
453 
454 struct ibmvnic_control_ras {
455 	u8 first;
456 	u8 cmd;
457 	u8 correlator;
458 	u8 level;
459 	u8 op;
460 #define IBMVNIC_TRACE_LEVEL	1
461 #define IBMVNIC_ERROR_LEVEL	2
462 #define IBMVNIC_TRACE_PAUSE	3
463 #define IBMVNIC_TRACE_RESUME	4
464 #define IBMVNIC_TRACE_ON		5
465 #define IBMVNIC_TRACE_OFF		6
466 #define IBMVNIC_CHG_TRACE_BUFF_SZ	7
467 	u8 trace_buff_sz[3];
468 	u8 reserved[4];
469 	struct ibmvnic_rc rc;
470 } __packed __aligned(8);
471 
472 struct ibmvnic_collect_fw_trace {
473 	u8 first;
474 	u8 cmd;
475 	u8 correlator;
476 	u8 reserved;
477 	__be32 ioba;
478 	__be32 len;
479 	struct ibmvnic_rc rc;
480 } __packed __aligned(8);
481 
482 struct ibmvnic_request_statistics {
483 	u8 first;
484 	u8 cmd;
485 	u8 flags;
486 #define IBMVNIC_PHYSICAL_PORT	0x80
487 	u8 reserved1;
488 	__be32 ioba;
489 	__be32 len;
490 	u8 reserved[4];
491 } __packed __aligned(8);
492 
493 struct ibmvnic_request_debug_stats {
494 	u8 first;
495 	u8 cmd;
496 	u8 reserved[2];
497 	__be32 ioba;
498 	__be32 len;
499 	struct ibmvnic_rc rc;
500 } __packed __aligned(8);
501 
502 struct ibmvnic_error_indication {
503 	u8 first;
504 	u8 cmd;
505 	u8 flags;
506 #define IBMVNIC_FATAL_ERROR	0x80
507 	u8 reserved1;
508 	__be32 error_id;
509 	__be32 detail_error_sz;
510 	__be16 error_cause;
511 	u8 reserved2[2];
512 } __packed __aligned(8);
513 
514 struct ibmvnic_request_error_info {
515 	u8 first;
516 	u8 cmd;
517 	u8 reserved[2];
518 	__be32 ioba;
519 	__be32 len;
520 	__be32 error_id;
521 } __packed __aligned(8);
522 
523 struct ibmvnic_request_error_rsp {
524 	u8 first;
525 	u8 cmd;
526 	u8 reserved[2];
527 	__be32 error_id;
528 	__be32 len;
529 	struct ibmvnic_rc rc;
530 } __packed __aligned(8);
531 
532 struct ibmvnic_link_state_indication {
533 	u8 first;
534 	u8 cmd;
535 	u8 reserved1[2];
536 	u8 phys_link_state;
537 	u8 logical_link_state;
538 	u8 reserved2[10];
539 } __packed __aligned(8);
540 
541 struct ibmvnic_change_mac_addr {
542 	u8 first;
543 	u8 cmd;
544 	u8 mac_addr[6];
545 	u8 reserved[4];
546 	struct ibmvnic_rc rc;
547 } __packed __aligned(8);
548 
549 struct ibmvnic_multicast_ctrl {
550 	u8 first;
551 	u8 cmd;
552 	u8 mac_addr[6];
553 	u8 flags;
554 #define IBMVNIC_ENABLE_MC		0x80
555 #define IBMVNIC_DISABLE_MC		0x40
556 #define IBMVNIC_ENABLE_ALL		0x20
557 #define IBMVNIC_DISABLE_ALL	0x10
558 	u8 reserved1;
559 	__be16 reserved2; /* was num_enabled_mc_addr; */
560 	struct ibmvnic_rc rc;
561 } __packed __aligned(8);
562 
563 struct ibmvnic_get_vpd_size {
564 	u8 first;
565 	u8 cmd;
566 	u8 reserved[14];
567 } __packed __aligned(8);
568 
569 struct ibmvnic_get_vpd_size_rsp {
570 	u8 first;
571 	u8 cmd;
572 	u8 reserved[2];
573 	__be64 len;
574 	struct ibmvnic_rc rc;
575 } __packed __aligned(8);
576 
577 struct ibmvnic_get_vpd {
578 	u8 first;
579 	u8 cmd;
580 	u8 reserved1[2];
581 	__be32 ioba;
582 	__be32 len;
583 	u8 reserved[4];
584 } __packed __aligned(8);
585 
586 struct ibmvnic_get_vpd_rsp {
587 	u8 first;
588 	u8 cmd;
589 	u8 reserved[10];
590 	struct ibmvnic_rc rc;
591 } __packed __aligned(8);
592 
593 struct ibmvnic_acl_change_indication {
594 	u8 first;
595 	u8 cmd;
596 	__be16 change_type;
597 #define IBMVNIC_MAC_ACL 0
598 #define IBMVNIC_VLAN_ACL 1
599 	u8 reserved[12];
600 } __packed __aligned(8);
601 
602 struct ibmvnic_acl_query {
603 	u8 first;
604 	u8 cmd;
605 	u8 reserved1[2];
606 	__be32 ioba;
607 	__be32 len;
608 	u8 reserved2[4];
609 } __packed __aligned(8);
610 
611 struct ibmvnic_tune {
612 	u8 first;
613 	u8 cmd;
614 	u8 reserved1[2];
615 	__be32 ioba;
616 	__be32 len;
617 	u8 reserved2[4];
618 } __packed __aligned(8);
619 
620 struct ibmvnic_request_map {
621 	u8 first;
622 	u8 cmd;
623 	u8 reserved1;
624 	u8 map_id;
625 	__be32 ioba;
626 	__be32 len;
627 	u8 reserved2[4];
628 } __packed __aligned(8);
629 
630 struct ibmvnic_request_map_rsp {
631 	u8 first;
632 	u8 cmd;
633 	u8 reserved1;
634 	u8 map_id;
635 	u8 reserved2[8];
636 	struct ibmvnic_rc rc;
637 } __packed __aligned(8);
638 
639 struct ibmvnic_request_unmap {
640 	u8 first;
641 	u8 cmd;
642 	u8 reserved1;
643 	u8 map_id;
644 	u8 reserved2[12];
645 } __packed __aligned(8);
646 
647 struct ibmvnic_request_unmap_rsp {
648 	u8 first;
649 	u8 cmd;
650 	u8 reserved1;
651 	u8 map_id;
652 	u8 reserved2[8];
653 	struct ibmvnic_rc rc;
654 } __packed __aligned(8);
655 
656 struct ibmvnic_query_map {
657 	u8 first;
658 	u8 cmd;
659 	u8 reserved[14];
660 } __packed __aligned(8);
661 
662 struct ibmvnic_query_map_rsp {
663 	u8 first;
664 	u8 cmd;
665 	u8 reserved;
666 	u8 page_size;
667 	__be32 tot_pages;
668 	__be32 free_pages;
669 	struct ibmvnic_rc rc;
670 } __packed __aligned(8);
671 
672 union ibmvnic_crq {
673 	struct ibmvnic_generic_crq generic;
674 	struct ibmvnic_version_exchange version_exchange;
675 	struct ibmvnic_version_exchange version_exchange_rsp;
676 	struct ibmvnic_capability query_capability;
677 	struct ibmvnic_capability query_capability_rsp;
678 	struct ibmvnic_capability request_capability;
679 	struct ibmvnic_capability request_capability_rsp;
680 	struct ibmvnic_login login;
681 	struct ibmvnic_generic_crq login_rsp;
682 	struct ibmvnic_phys_parms query_phys_parms;
683 	struct ibmvnic_phys_parms query_phys_parms_rsp;
684 	struct ibmvnic_phys_parms query_phys_capabilities;
685 	struct ibmvnic_phys_parms query_phys_capabilities_rsp;
686 	struct ibmvnic_phys_parms set_phys_parms;
687 	struct ibmvnic_phys_parms set_phys_parms_rsp;
688 	struct ibmvnic_logical_link_state logical_link_state;
689 	struct ibmvnic_logical_link_state logical_link_state_rsp;
690 	struct ibmvnic_query_ip_offload query_ip_offload;
691 	struct ibmvnic_query_ip_offload query_ip_offload_rsp;
692 	struct ibmvnic_control_ip_offload control_ip_offload;
693 	struct ibmvnic_control_ip_offload control_ip_offload_rsp;
694 	struct ibmvnic_request_dump_size request_dump_size;
695 	struct ibmvnic_request_dump_size request_dump_size_rsp;
696 	struct ibmvnic_request_dump request_dump;
697 	struct ibmvnic_request_dump_rsp request_dump_rsp;
698 	struct ibmvnic_request_ras_comp_num request_ras_comp_num;
699 	struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
700 	struct ibmvnic_request_ras_comps request_ras_comps;
701 	struct ibmvnic_request_ras_comps request_ras_comps_rsp;
702 	struct ibmvnic_control_ras control_ras;
703 	struct ibmvnic_control_ras control_ras_rsp;
704 	struct ibmvnic_collect_fw_trace collect_fw_trace;
705 	struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
706 	struct ibmvnic_request_statistics request_statistics;
707 	struct ibmvnic_generic_crq request_statistics_rsp;
708 	struct ibmvnic_request_debug_stats request_debug_stats;
709 	struct ibmvnic_request_debug_stats request_debug_stats_rsp;
710 	struct ibmvnic_error_indication error_indication;
711 	struct ibmvnic_request_error_info request_error_info;
712 	struct ibmvnic_request_error_rsp request_error_rsp;
713 	struct ibmvnic_link_state_indication link_state_indication;
714 	struct ibmvnic_change_mac_addr change_mac_addr;
715 	struct ibmvnic_change_mac_addr change_mac_addr_rsp;
716 	struct ibmvnic_multicast_ctrl multicast_ctrl;
717 	struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
718 	struct ibmvnic_get_vpd_size get_vpd_size;
719 	struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
720 	struct ibmvnic_get_vpd get_vpd;
721 	struct ibmvnic_get_vpd_rsp get_vpd_rsp;
722 	struct ibmvnic_acl_change_indication acl_change_indication;
723 	struct ibmvnic_acl_query acl_query;
724 	struct ibmvnic_generic_crq acl_query_rsp;
725 	struct ibmvnic_tune tune;
726 	struct ibmvnic_generic_crq tune_rsp;
727 	struct ibmvnic_request_map request_map;
728 	struct ibmvnic_request_map_rsp request_map_rsp;
729 	struct ibmvnic_request_unmap request_unmap;
730 	struct ibmvnic_request_unmap_rsp request_unmap_rsp;
731 	struct ibmvnic_query_map query_map;
732 	struct ibmvnic_query_map_rsp query_map_rsp;
733 };
734 
735 enum ibmvnic_rc_codes {
736 	SUCCESS = 0,
737 	PARTIALSUCCESS = 1,
738 	PERMISSION = 2,
739 	NOMEMORY = 3,
740 	PARAMETER = 4,
741 	UNKNOWNCOMMAND = 5,
742 	ABORTED = 6,
743 	INVALIDSTATE = 7,
744 	INVALIDIOBA = 8,
745 	INVALIDLENGTH = 9,
746 	UNSUPPORTEDOPTION = 10,
747 };
748 
749 enum ibmvnic_capabilities {
750 	MIN_TX_QUEUES = 1,
751 	MIN_RX_QUEUES = 2,
752 	MIN_RX_ADD_QUEUES = 3,
753 	MAX_TX_QUEUES = 4,
754 	MAX_RX_QUEUES = 5,
755 	MAX_RX_ADD_QUEUES = 6,
756 	REQ_TX_QUEUES = 7,
757 	REQ_RX_QUEUES = 8,
758 	REQ_RX_ADD_QUEUES = 9,
759 	MIN_TX_ENTRIES_PER_SUBCRQ = 10,
760 	MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
761 	MAX_TX_ENTRIES_PER_SUBCRQ = 12,
762 	MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
763 	REQ_TX_ENTRIES_PER_SUBCRQ = 14,
764 	REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
765 	TCP_IP_OFFLOAD = 16,
766 	PROMISC_REQUESTED = 17,
767 	PROMISC_SUPPORTED = 18,
768 	MIN_MTU = 19,
769 	MAX_MTU = 20,
770 	REQ_MTU = 21,
771 	MAX_MULTICAST_FILTERS = 22,
772 	VLAN_HEADER_INSERTION = 23,
773 	RX_VLAN_HEADER_INSERTION = 24,
774 	MAX_TX_SG_ENTRIES = 25,
775 	RX_SG_SUPPORTED = 26,
776 	RX_SG_REQUESTED = 27,
777 	OPT_TX_COMP_SUB_QUEUES = 28,
778 	OPT_RX_COMP_QUEUES = 29,
779 	OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
780 	OPT_TX_ENTRIES_PER_SUBCRQ = 31,
781 	OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
782 	TX_RX_DESC_REQ = 33,
783 };
784 
785 enum ibmvnic_error_cause {
786 	ADAPTER_PROBLEM = 0,
787 	BUS_PROBLEM = 1,
788 	FW_PROBLEM = 2,
789 	DD_PROBLEM = 3,
790 	EEH_RECOVERY = 4,
791 	FW_UPDATED = 5,
792 	LOW_MEMORY = 6,
793 };
794 
795 enum ibmvnic_commands {
796 	VERSION_EXCHANGE = 0x01,
797 	VERSION_EXCHANGE_RSP = 0x81,
798 	QUERY_CAPABILITY = 0x02,
799 	QUERY_CAPABILITY_RSP = 0x82,
800 	REQUEST_CAPABILITY = 0x03,
801 	REQUEST_CAPABILITY_RSP = 0x83,
802 	LOGIN = 0x04,
803 	LOGIN_RSP = 0x84,
804 	QUERY_PHYS_PARMS = 0x05,
805 	QUERY_PHYS_PARMS_RSP = 0x85,
806 	QUERY_PHYS_CAPABILITIES = 0x06,
807 	QUERY_PHYS_CAPABILITIES_RSP = 0x86,
808 	SET_PHYS_PARMS = 0x07,
809 	SET_PHYS_PARMS_RSP = 0x87,
810 	ERROR_INDICATION = 0x08,
811 	REQUEST_ERROR_INFO = 0x09,
812 	REQUEST_ERROR_RSP = 0x89,
813 	LOGICAL_LINK_STATE = 0x0C,
814 	LOGICAL_LINK_STATE_RSP = 0x8C,
815 	REQUEST_STATISTICS = 0x0D,
816 	REQUEST_STATISTICS_RSP = 0x8D,
817 	COLLECT_FW_TRACE = 0x11,
818 	COLLECT_FW_TRACE_RSP = 0x91,
819 	LINK_STATE_INDICATION = 0x12,
820 	CHANGE_MAC_ADDR = 0x13,
821 	CHANGE_MAC_ADDR_RSP = 0x93,
822 	MULTICAST_CTRL = 0x14,
823 	MULTICAST_CTRL_RSP = 0x94,
824 	GET_VPD_SIZE = 0x15,
825 	GET_VPD_SIZE_RSP = 0x95,
826 	GET_VPD = 0x16,
827 	GET_VPD_RSP = 0x96,
828 	TUNE = 0x17,
829 	TUNE_RSP = 0x97,
830 	QUERY_IP_OFFLOAD = 0x18,
831 	QUERY_IP_OFFLOAD_RSP = 0x98,
832 	CONTROL_IP_OFFLOAD = 0x19,
833 	CONTROL_IP_OFFLOAD_RSP = 0x99,
834 	ACL_CHANGE_INDICATION = 0x1A,
835 	ACL_QUERY = 0x1B,
836 	ACL_QUERY_RSP = 0x9B,
837 	QUERY_MAP = 0x1D,
838 	QUERY_MAP_RSP = 0x9D,
839 	REQUEST_MAP = 0x1E,
840 	REQUEST_MAP_RSP = 0x9E,
841 	REQUEST_UNMAP = 0x1F,
842 	REQUEST_UNMAP_RSP = 0x9F,
843 	VLAN_CTRL = 0x20,
844 	VLAN_CTRL_RSP = 0xA0,
845 };
846 
847 enum ibmvnic_crq_type {
848 	IBMVNIC_CRQ_CMD			= 0x80,
849 	IBMVNIC_CRQ_CMD_RSP		= 0x80,
850 	IBMVNIC_CRQ_INIT_CMD		= 0xC0,
851 	IBMVNIC_CRQ_INIT_RSP		= 0xC0,
852 	IBMVNIC_CRQ_XPORT_EVENT		= 0xFF,
853 };
854 
855 enum ibmvfc_crq_format {
856 	IBMVNIC_CRQ_INIT                 = 0x01,
857 	IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
858 	IBMVNIC_PARTITION_MIGRATED       = 0x06,
859 	IBMVNIC_DEVICE_FAILOVER          = 0x08,
860 };
861 
862 struct ibmvnic_crq_queue {
863 	union ibmvnic_crq *msgs;
864 	int size, cur;
865 	dma_addr_t msg_token;
866 	spinlock_t lock;
867 };
868 
869 union sub_crq {
870 	struct ibmvnic_generic_scrq generic;
871 	struct ibmvnic_tx_comp_desc tx_comp;
872 	struct ibmvnic_tx_desc v1;
873 	struct ibmvnic_hdr_desc hdr;
874 	struct ibmvnic_hdr_ext_desc hdr_ext;
875 	struct ibmvnic_sge_desc sge;
876 	struct ibmvnic_rx_comp_desc rx_comp;
877 	struct ibmvnic_rx_buff_add_desc rx_add;
878 };
879 
880 struct ibmvnic_sub_crq_queue {
881 	union sub_crq *msgs;
882 	int size, cur;
883 	dma_addr_t msg_token;
884 	unsigned long crq_num;
885 	unsigned long hw_irq;
886 	unsigned int irq;
887 	unsigned int pool_index;
888 	int scrq_num;
889 	spinlock_t lock;
890 	struct sk_buff *rx_skb_top;
891 	struct ibmvnic_adapter *adapter;
892 	atomic_t used;
893 };
894 
895 struct ibmvnic_long_term_buff {
896 	unsigned char *buff;
897 	dma_addr_t addr;
898 	u64 size;
899 	u8 map_id;
900 };
901 
902 struct ibmvnic_tx_buff {
903 	struct sk_buff *skb;
904 	dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
905 	unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
906 	int index;
907 	int pool_index;
908 	bool last_frag;
909 	union sub_crq indir_arr[6];
910 	u8 hdr_data[140];
911 	dma_addr_t indir_dma;
912 };
913 
914 struct ibmvnic_tx_pool {
915 	struct ibmvnic_tx_buff *tx_buff;
916 	int *free_map;
917 	int consumer_index;
918 	int producer_index;
919 	wait_queue_head_t ibmvnic_tx_comp_q;
920 	struct task_struct *work_thread;
921 	struct ibmvnic_long_term_buff long_term_buff;
922 	struct ibmvnic_long_term_buff tso_ltb;
923 	int tso_index;
924 };
925 
926 struct ibmvnic_rx_buff {
927 	struct sk_buff *skb;
928 	dma_addr_t dma;
929 	unsigned char *data;
930 	int size;
931 	int pool_index;
932 };
933 
934 struct ibmvnic_rx_pool {
935 	struct ibmvnic_rx_buff *rx_buff;
936 	int size;
937 	int index;
938 	int buff_size;
939 	atomic_t available;
940 	int *free_map;
941 	int next_free;
942 	int next_alloc;
943 	int active;
944 	struct ibmvnic_long_term_buff long_term_buff;
945 };
946 
947 struct ibmvnic_error_buff {
948 	char *buff;
949 	dma_addr_t dma;
950 	int len;
951 	struct list_head list;
952 	__be32 error_id;
953 };
954 
955 struct ibmvnic_vpd {
956 	unsigned char *buff;
957 	dma_addr_t dma_addr;
958 	u64 len;
959 };
960 
961 enum vnic_state {VNIC_PROBING = 1,
962 		 VNIC_PROBED,
963 		 VNIC_OPENING,
964 		 VNIC_OPEN,
965 		 VNIC_CLOSING,
966 		 VNIC_CLOSED,
967 		 VNIC_REMOVING,
968 		 VNIC_REMOVED};
969 
970 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
971 			   VNIC_RESET_MOBILITY,
972 			   VNIC_RESET_FATAL,
973 			   VNIC_RESET_NON_FATAL,
974 			   VNIC_RESET_TIMEOUT,
975 			   VNIC_RESET_CHANGE_PARAM};
976 
977 struct ibmvnic_rwi {
978 	enum ibmvnic_reset_reason reset_reason;
979 	struct list_head list;
980 };
981 
982 struct ibmvnic_tunables {
983 	u64 rx_queues;
984 	u64 tx_queues;
985 	u64 rx_entries;
986 	u64 tx_entries;
987 	u64 mtu;
988 	struct sockaddr mac;
989 };
990 
991 struct ibmvnic_adapter {
992 	struct vio_dev *vdev;
993 	struct net_device *netdev;
994 	struct ibmvnic_crq_queue crq;
995 	u8 mac_addr[ETH_ALEN];
996 	struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
997 	dma_addr_t ip_offload_tok;
998 	struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
999 	dma_addr_t ip_offload_ctrl_tok;
1000 	u32 msg_enable;
1001 
1002 	/* Vital Product Data (VPD) */
1003 	struct ibmvnic_vpd *vpd;
1004 	char fw_version[32];
1005 
1006 	/* Statistics */
1007 	struct ibmvnic_statistics stats;
1008 	dma_addr_t stats_token;
1009 	struct completion stats_done;
1010 	spinlock_t stats_lock;
1011 	int replenish_no_mem;
1012 	int replenish_add_buff_success;
1013 	int replenish_add_buff_failure;
1014 	int replenish_task_cycles;
1015 	int tx_send_failed;
1016 	int tx_map_failed;
1017 
1018 	struct ibmvnic_tx_queue_stats *tx_stats_buffers;
1019 	struct ibmvnic_rx_queue_stats *rx_stats_buffers;
1020 
1021 	int phys_link_state;
1022 	int logical_link_state;
1023 
1024 	/* login data */
1025 	struct ibmvnic_login_buffer *login_buf;
1026 	dma_addr_t login_buf_token;
1027 	int login_buf_sz;
1028 
1029 	struct ibmvnic_login_rsp_buffer *login_rsp_buf;
1030 	dma_addr_t login_rsp_buf_token;
1031 	int login_rsp_buf_sz;
1032 
1033 	atomic_t running_cap_crqs;
1034 	bool wait_capability;
1035 
1036 	struct ibmvnic_sub_crq_queue **tx_scrq;
1037 	struct ibmvnic_sub_crq_queue **rx_scrq;
1038 	bool renegotiate;
1039 
1040 	/* rx structs */
1041 	struct napi_struct *napi;
1042 	struct ibmvnic_rx_pool *rx_pool;
1043 	u64 promisc;
1044 
1045 	struct ibmvnic_tx_pool *tx_pool;
1046 	struct completion init_done;
1047 	int init_done_rc;
1048 
1049 	struct list_head errors;
1050 	spinlock_t error_list_lock;
1051 
1052 	struct completion fw_done;
1053 	int fw_done_rc;
1054 
1055 	struct completion reset_done;
1056 	int reset_done_rc;
1057 	bool wait_for_reset;
1058 
1059 	/* partner capabilities */
1060 	u64 min_tx_queues;
1061 	u64 min_rx_queues;
1062 	u64 min_rx_add_queues;
1063 	u64 max_tx_queues;
1064 	u64 max_rx_queues;
1065 	u64 max_rx_add_queues;
1066 	u64 req_tx_queues;
1067 	u64 req_rx_queues;
1068 	u64 req_rx_add_queues;
1069 	u64 min_tx_entries_per_subcrq;
1070 	u64 min_rx_add_entries_per_subcrq;
1071 	u64 max_tx_entries_per_subcrq;
1072 	u64 max_rx_add_entries_per_subcrq;
1073 	u64 req_tx_entries_per_subcrq;
1074 	u64 req_rx_add_entries_per_subcrq;
1075 	u64 tcp_ip_offload;
1076 	u64 promisc_requested;
1077 	u64 promisc_supported;
1078 	u64 min_mtu;
1079 	u64 max_mtu;
1080 	u64 req_mtu;
1081 	u64 max_multicast_filters;
1082 	u64 vlan_header_insertion;
1083 	u64 rx_vlan_header_insertion;
1084 	u64 max_tx_sg_entries;
1085 	u64 rx_sg_supported;
1086 	u64 rx_sg_requested;
1087 	u64 opt_tx_comp_sub_queues;
1088 	u64 opt_rx_comp_queues;
1089 	u64 opt_rx_bufadd_q_per_rx_comp_q;
1090 	u64 opt_tx_entries_per_subcrq;
1091 	u64 opt_rxba_entries_per_subcrq;
1092 	__be64 tx_rx_desc_req;
1093 	u8 map_id;
1094 
1095 	struct tasklet_struct tasklet;
1096 	enum vnic_state state;
1097 	enum ibmvnic_reset_reason reset_reason;
1098 	struct mutex reset_lock, rwi_lock;
1099 	struct list_head rwi_list;
1100 	struct work_struct ibmvnic_reset;
1101 	bool resetting;
1102 	bool napi_enabled, from_passive_init;
1103 
1104 	bool mac_change_pending;
1105 
1106 	struct ibmvnic_tunables desired;
1107 	struct ibmvnic_tunables fallback;
1108 };
1109