xref: /linux/drivers/net/ethernet/ibm/ibmvnic.h (revision 95298d63c67673c654c08952672d016212b26054) 
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /**************************************************************************/
3 /*                                                                        */
4 /*  IBM System i and System p Virtual NIC Device Driver                   */
5 /*  Copyright (C) 2014 IBM Corp.                                          */
6 /*  Santiago Leon (santi_leon@yahoo.com)                                  */
7 /*  Thomas Falcon (tlfalcon@linux.vnet.ibm.com)                           */
8 /*  John Allen (jallen@linux.vnet.ibm.com)                                */
9 /*                                                                        */
10 /*                                                                        */
11 /* This module contains the implementation of a virtual ethernet device   */
12 /* for use with IBM i/pSeries LPAR Linux.  It utilizes the logical LAN    */
13 /* option of the RS/6000 Platform Architecture to interface with virtual */
14 /* ethernet NICs that are presented to the partition by the hypervisor.   */
15 /*                                                                        */
16 /**************************************************************************/
17 
18 #define IBMVNIC_NAME		"ibmvnic"
19 #define IBMVNIC_DRIVER_VERSION	"1.0.1"
20 #define IBMVNIC_INVALID_MAP	-1
21 #define IBMVNIC_STATS_TIMEOUT	1
22 #define IBMVNIC_INIT_FAILED	2
23 #define IBMVNIC_OPEN_FAILED	3
24 
25 /* basic structures plus 100 2k buffers */
26 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT	610305
27 
28 /* Initial module_parameters */
29 #define IBMVNIC_RX_WEIGHT		16
30 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
31 #define IBMVNIC_BUFFS_PER_POOL	100
32 #define IBMVNIC_MAX_QUEUES	16
33 #define IBMVNIC_MAX_QUEUE_SZ   4096
34 
35 #define IBMVNIC_TSO_BUF_SZ	65536
36 #define IBMVNIC_TSO_BUFS	64
37 #define IBMVNIC_TSO_POOL_MASK	0x80000000
38 
39 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
40 #define IBMVNIC_BUFFER_HLEN 500
41 
42 #define IBMVNIC_RESET_DELAY 100
43 
44 static const char ibmvnic_priv_flags[][ETH_GSTRING_LEN] = {
45 #define IBMVNIC_USE_SERVER_MAXES 0x1
46 	"use-server-maxes"
47 };
48 
49 struct ibmvnic_login_buffer {
50 	__be32 len;
51 	__be32 version;
52 #define INITIAL_VERSION_LB 1
53 	__be32 num_txcomp_subcrqs;
54 	__be32 off_txcomp_subcrqs;
55 	__be32 num_rxcomp_subcrqs;
56 	__be32 off_rxcomp_subcrqs;
57 	__be32 login_rsp_ioba;
58 	__be32 login_rsp_len;
59 	__be32 client_data_offset;
60 	__be32 client_data_len;
61 } __packed __aligned(8);
62 
63 struct ibmvnic_login_rsp_buffer {
64 	__be32 len;
65 	__be32 version;
66 #define INITIAL_VERSION_LRB 1
67 	__be32 num_txsubm_subcrqs;
68 	__be32 off_txsubm_subcrqs;
69 	__be32 num_rxadd_subcrqs;
70 	__be32 off_rxadd_subcrqs;
71 	__be32 off_rxadd_buff_size;
72 	__be32 num_supp_tx_desc;
73 	__be32 off_supp_tx_desc;
74 } __packed __aligned(8);
75 
76 struct ibmvnic_query_ip_offload_buffer {
77 	__be32 len;
78 	__be32 version;
79 #define INITIAL_VERSION_IOB 1
80 	u8 ipv4_chksum;
81 	u8 ipv6_chksum;
82 	u8 tcp_ipv4_chksum;
83 	u8 tcp_ipv6_chksum;
84 	u8 udp_ipv4_chksum;
85 	u8 udp_ipv6_chksum;
86 	u8 large_tx_ipv4;
87 	u8 large_tx_ipv6;
88 	u8 large_rx_ipv4;
89 	u8 large_rx_ipv6;
90 	u8 reserved1[14];
91 	__be16 max_ipv4_header_size;
92 	__be16 max_ipv6_header_size;
93 	__be16 max_tcp_header_size;
94 	__be16 max_udp_header_size;
95 	__be32 max_large_tx_size;
96 	__be32 max_large_rx_size;
97 	u8 reserved2[16];
98 	u8 ipv6_extension_header;
99 #define IPV6_EH_NOT_SUPPORTED	0x00
100 #define IPV6_EH_SUPPORTED_LIM	0x01
101 #define IPV6_EH_SUPPORTED	0xFF
102 	u8 tcp_pseudosum_req;
103 #define TCP_PS_NOT_REQUIRED	0x00
104 #define TCP_PS_REQUIRED		0x01
105 	u8 reserved3[30];
106 	__be16 num_ipv6_ext_headers;
107 	__be32 off_ipv6_ext_headers;
108 	u8 reserved4[154];
109 } __packed __aligned(8);
110 
111 struct ibmvnic_control_ip_offload_buffer {
112 	__be32 len;
113 	__be32 version;
114 #define INITIAL_VERSION_IOB 1
115 	u8 ipv4_chksum;
116 	u8 ipv6_chksum;
117 	u8 tcp_ipv4_chksum;
118 	u8 tcp_ipv6_chksum;
119 	u8 udp_ipv4_chksum;
120 	u8 udp_ipv6_chksum;
121 	u8 large_tx_ipv4;
122 	u8 large_tx_ipv6;
123 	u8 bad_packet_rx;
124 	u8 large_rx_ipv4;
125 	u8 large_rx_ipv6;
126 	u8 reserved4[111];
127 } __packed __aligned(8);
128 
129 struct ibmvnic_fw_component {
130 	u8 name[48];
131 	__be32 trace_buff_size;
132 	u8 correlator;
133 	u8 trace_level;
134 	u8 parent_correlator;
135 	u8 error_check_level;
136 	u8 trace_on;
137 	u8 reserved[7];
138 	u8 description[192];
139 } __packed __aligned(8);
140 
141 struct ibmvnic_fw_trace_entry {
142 	__be32 trace_id;
143 	u8 num_valid_data;
144 	u8 reserved[3];
145 	__be64 pmc_registers;
146 	__be64 timebase;
147 	__be64 trace_data[5];
148 } __packed __aligned(8);
149 
150 struct ibmvnic_statistics {
151 	__be32 version;
152 	__be32 promiscuous;
153 	__be64 rx_packets;
154 	__be64 rx_bytes;
155 	__be64 tx_packets;
156 	__be64 tx_bytes;
157 	__be64 ucast_tx_packets;
158 	__be64 ucast_rx_packets;
159 	__be64 mcast_tx_packets;
160 	__be64 mcast_rx_packets;
161 	__be64 bcast_tx_packets;
162 	__be64 bcast_rx_packets;
163 	__be64 align_errors;
164 	__be64 fcs_errors;
165 	__be64 single_collision_frames;
166 	__be64 multi_collision_frames;
167 	__be64 sqe_test_errors;
168 	__be64 deferred_tx;
169 	__be64 late_collisions;
170 	__be64 excess_collisions;
171 	__be64 internal_mac_tx_errors;
172 	__be64 carrier_sense;
173 	__be64 too_long_frames;
174 	__be64 internal_mac_rx_errors;
175 	u8 reserved[72];
176 } __packed __aligned(8);
177 
178 #define NUM_TX_STATS 3
179 struct ibmvnic_tx_queue_stats {
180 	u64 packets;
181 	u64 bytes;
182 	u64 dropped_packets;
183 };
184 
185 #define NUM_RX_STATS 3
186 struct ibmvnic_rx_queue_stats {
187 	u64 packets;
188 	u64 bytes;
189 	u64 interrupts;
190 };
191 
192 struct ibmvnic_acl_buffer {
193 	__be32 len;
194 	__be32 version;
195 #define INITIAL_VERSION_IOB 1
196 	u8 mac_acls_restrict;
197 	u8 vlan_acls_restrict;
198 	u8 reserved1[22];
199 	__be32 num_mac_addrs;
200 	__be32 offset_mac_addrs;
201 	__be32 num_vlan_ids;
202 	__be32 offset_vlan_ids;
203 	u8 reserved2[80];
204 } __packed __aligned(8);
205 
206 /* descriptors have been changed, how should this be defined?  1? 4? */
207 
208 #define IBMVNIC_TX_DESC_VERSIONS 3
209 
210 /* is this still needed? */
211 struct ibmvnic_tx_comp_desc {
212 	u8 first;
213 	u8 num_comps;
214 	__be16 rcs[5];
215 	__be32 correlators[5];
216 } __packed __aligned(8);
217 
218 /* some flags that included in v0 descriptor, which is gone
219  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
220  * and only in some offload_flags variable that doesn't seem
221  * to be used anywhere, can probably be removed?
222  */
223 
224 #define IBMVNIC_TCP_CHKSUM		0x20
225 #define IBMVNIC_UDP_CHKSUM		0x08
226 
227 #define IBMVNIC_MAX_FRAGS_PER_CRQ 3
228 
229 struct ibmvnic_tx_desc {
230 	u8 first;
231 	u8 type;
232 
233 #define IBMVNIC_TX_DESC 0x10
234 	u8 n_crq_elem;
235 	u8 n_sge;
236 	u8 flags1;
237 #define IBMVNIC_TX_COMP_NEEDED		0x80
238 #define IBMVNIC_TX_CHKSUM_OFFLOAD	0x40
239 #define IBMVNIC_TX_LSO			0x20
240 #define IBMVNIC_TX_PROT_TCP		0x10
241 #define IBMVNIC_TX_PROT_UDP		0x08
242 #define IBMVNIC_TX_PROT_IPV4		0x04
243 #define IBMVNIC_TX_PROT_IPV6		0x02
244 #define IBMVNIC_TX_VLAN_PRESENT		0x01
245 	u8 flags2;
246 #define IBMVNIC_TX_VLAN_INSERT		0x80
247 	__be16 mss;
248 	u8 reserved[4];
249 	__be32 correlator;
250 	__be16 vlan_id;
251 	__be16 dma_reg;
252 	__be32 sge_len;
253 	__be64 ioba;
254 } __packed __aligned(8);
255 
256 struct ibmvnic_hdr_desc {
257 	u8 first;
258 	u8 type;
259 #define IBMVNIC_HDR_DESC		0x11
260 	u8 len;
261 	u8 l2_len;
262 	__be16 l3_len;
263 	u8 l4_len;
264 	u8 flag;
265 	u8 data[24];
266 } __packed __aligned(8);
267 
268 struct ibmvnic_hdr_ext_desc {
269 	u8 first;
270 	u8 type;
271 #define IBMVNIC_HDR_EXT_DESC		0x12
272 	u8 len;
273 	u8 data[29];
274 } __packed __aligned(8);
275 
276 struct ibmvnic_sge_desc {
277 	u8 first;
278 	u8 type;
279 #define IBMVNIC_SGE_DESC		0x30
280 	__be16 sge1_dma_reg;
281 	__be32 sge1_len;
282 	__be64 sge1_ioba;
283 	__be16 reserved;
284 	__be16 sge2_dma_reg;
285 	__be32 sge2_len;
286 	__be64 sge2_ioba;
287 } __packed __aligned(8);
288 
289 struct ibmvnic_rx_comp_desc {
290 	u8 first;
291 	u8 flags;
292 #define IBMVNIC_IP_CHKSUM_GOOD		0x80
293 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD	0x40
294 #define IBMVNIC_END_FRAME			0x20
295 #define IBMVNIC_EXACT_MC			0x10
296 #define IBMVNIC_VLAN_STRIPPED			0x08
297 	__be16 off_frame_data;
298 	__be32 len;
299 	__be64 correlator;
300 	__be16 vlan_tci;
301 	__be16 rc;
302 	u8 reserved[12];
303 } __packed __aligned(8);
304 
305 struct ibmvnic_generic_scrq {
306 	u8 first;
307 	u8 reserved[31];
308 } __packed __aligned(8);
309 
310 struct ibmvnic_rx_buff_add_desc {
311 	u8 first;
312 	u8 reserved[7];
313 	__be64 correlator;
314 	__be32 ioba;
315 	u8 map_id;
316 	__be32 len:24;
317 	u8 reserved2[8];
318 } __packed __aligned(8);
319 
320 struct ibmvnic_rc {
321 	u8 code; /* one of enum ibmvnic_rc_codes */
322 	u8 detailed_data[3];
323 } __packed __aligned(4);
324 
325 struct ibmvnic_generic_crq {
326 	u8 first;
327 	u8 cmd;
328 	u8 params[10];
329 	struct ibmvnic_rc rc;
330 } __packed __aligned(8);
331 
332 struct ibmvnic_version_exchange {
333 	u8 first;
334 	u8 cmd;
335 	__be16 version;
336 #define IBMVNIC_INITIAL_VERSION 1
337 	u8 reserved[8];
338 	struct ibmvnic_rc rc;
339 } __packed __aligned(8);
340 
341 struct ibmvnic_capability {
342 	u8 first;
343 	u8 cmd;
344 	__be16 capability; /* one of ibmvnic_capabilities */
345 	__be64 number;
346 	struct ibmvnic_rc rc;
347 } __packed __aligned(8);
348 
349 struct ibmvnic_login {
350 	u8 first;
351 	u8 cmd;
352 	u8 reserved[6];
353 	__be32 ioba;
354 	__be32 len;
355 } __packed __aligned(8);
356 
357 struct ibmvnic_phys_parms {
358 	u8 first;
359 	u8 cmd;
360 	u8 flags1;
361 #define IBMVNIC_EXTERNAL_LOOPBACK	0x80
362 #define IBMVNIC_INTERNAL_LOOPBACK	0x40
363 #define IBMVNIC_PROMISC		0x20
364 #define IBMVNIC_PHYS_LINK_ACTIVE	0x10
365 #define IBMVNIC_AUTONEG_DUPLEX	0x08
366 #define IBMVNIC_FULL_DUPLEX	0x04
367 #define IBMVNIC_HALF_DUPLEX	0x02
368 #define IBMVNIC_CAN_CHG_PHYS_PARMS	0x01
369 	u8 flags2;
370 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
371 	__be32 speed;
372 #define IBMVNIC_AUTONEG		0x80000000
373 #define IBMVNIC_10MBPS		0x40000000
374 #define IBMVNIC_100MBPS		0x20000000
375 #define IBMVNIC_1GBPS		0x10000000
376 #define IBMVNIC_10GBP		0x08000000
377 #define IBMVNIC_40GBPS		0x04000000
378 #define IBMVNIC_100GBPS		0x02000000
379 #define IBMVNIC_25GBPS		0x01000000
380 #define IBMVNIC_50GBPS		0x00800000
381 #define IBMVNIC_200GBPS		0x00400000
382 	__be32 mtu;
383 	struct ibmvnic_rc rc;
384 } __packed __aligned(8);
385 
386 struct ibmvnic_logical_link_state {
387 	u8 first;
388 	u8 cmd;
389 	u8 link_state;
390 #define IBMVNIC_LOGICAL_LNK_DN 0x00
391 #define IBMVNIC_LOGICAL_LNK_UP 0x01
392 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
393 	u8 reserved[9];
394 	struct ibmvnic_rc rc;
395 } __packed __aligned(8);
396 
397 struct ibmvnic_query_ip_offload {
398 	u8 first;
399 	u8 cmd;
400 	u8 reserved[2];
401 	__be32 len;
402 	__be32 ioba;
403 	struct ibmvnic_rc rc;
404 } __packed __aligned(8);
405 
406 struct ibmvnic_control_ip_offload {
407 	u8 first;
408 	u8 cmd;
409 	u8 reserved[2];
410 	__be32 ioba;
411 	__be32 len;
412 	struct ibmvnic_rc rc;
413 } __packed __aligned(8);
414 
415 struct ibmvnic_request_dump_size {
416 	u8 first;
417 	u8 cmd;
418 	u8 reserved[6];
419 	__be32 len;
420 	struct ibmvnic_rc rc;
421 } __packed __aligned(8);
422 
423 struct ibmvnic_request_dump {
424 	u8 first;
425 	u8 cmd;
426 	u8 reserved1[2];
427 	__be32 ioba;
428 	__be32 len;
429 	u8 reserved2[4];
430 } __packed __aligned(8);
431 
432 struct ibmvnic_request_dump_rsp {
433 	u8 first;
434 	u8 cmd;
435 	u8 reserved[6];
436 	__be32 dumped_len;
437 	struct ibmvnic_rc rc;
438 } __packed __aligned(8);
439 
440 struct ibmvnic_request_ras_comp_num {
441 	u8 first;
442 	u8 cmd;
443 	u8 reserved1[2];
444 	__be32 num_components;
445 	u8 reserved2[4];
446 	struct ibmvnic_rc rc;
447 } __packed __aligned(8);
448 
449 struct ibmvnic_request_ras_comps {
450 	u8 first;
451 	u8 cmd;
452 	u8 reserved[2];
453 	__be32 ioba;
454 	__be32 len;
455 	struct ibmvnic_rc rc;
456 } __packed __aligned(8);
457 
458 struct ibmvnic_control_ras {
459 	u8 first;
460 	u8 cmd;
461 	u8 correlator;
462 	u8 level;
463 	u8 op;
464 #define IBMVNIC_TRACE_LEVEL	1
465 #define IBMVNIC_ERROR_LEVEL	2
466 #define IBMVNIC_TRACE_PAUSE	3
467 #define IBMVNIC_TRACE_RESUME	4
468 #define IBMVNIC_TRACE_ON		5
469 #define IBMVNIC_TRACE_OFF		6
470 #define IBMVNIC_CHG_TRACE_BUFF_SZ	7
471 	u8 trace_buff_sz[3];
472 	u8 reserved[4];
473 	struct ibmvnic_rc rc;
474 } __packed __aligned(8);
475 
476 struct ibmvnic_collect_fw_trace {
477 	u8 first;
478 	u8 cmd;
479 	u8 correlator;
480 	u8 reserved;
481 	__be32 ioba;
482 	__be32 len;
483 	struct ibmvnic_rc rc;
484 } __packed __aligned(8);
485 
486 struct ibmvnic_request_statistics {
487 	u8 first;
488 	u8 cmd;
489 	u8 flags;
490 #define IBMVNIC_PHYSICAL_PORT	0x80
491 	u8 reserved1;
492 	__be32 ioba;
493 	__be32 len;
494 	u8 reserved[4];
495 } __packed __aligned(8);
496 
497 struct ibmvnic_request_debug_stats {
498 	u8 first;
499 	u8 cmd;
500 	u8 reserved[2];
501 	__be32 ioba;
502 	__be32 len;
503 	struct ibmvnic_rc rc;
504 } __packed __aligned(8);
505 
506 struct ibmvnic_error_indication {
507 	u8 first;
508 	u8 cmd;
509 	u8 flags;
510 #define IBMVNIC_FATAL_ERROR	0x80
511 	u8 reserved1;
512 	__be32 error_id;
513 	__be32 detail_error_sz;
514 	__be16 error_cause;
515 	u8 reserved2[2];
516 } __packed __aligned(8);
517 
518 struct ibmvnic_link_state_indication {
519 	u8 first;
520 	u8 cmd;
521 	u8 reserved1[2];
522 	u8 phys_link_state;
523 	u8 logical_link_state;
524 	u8 reserved2[10];
525 } __packed __aligned(8);
526 
527 struct ibmvnic_change_mac_addr {
528 	u8 first;
529 	u8 cmd;
530 	u8 mac_addr[6];
531 	u8 reserved[4];
532 	struct ibmvnic_rc rc;
533 } __packed __aligned(8);
534 
535 struct ibmvnic_multicast_ctrl {
536 	u8 first;
537 	u8 cmd;
538 	u8 mac_addr[6];
539 	u8 flags;
540 #define IBMVNIC_ENABLE_MC		0x80
541 #define IBMVNIC_DISABLE_MC		0x40
542 #define IBMVNIC_ENABLE_ALL		0x20
543 #define IBMVNIC_DISABLE_ALL	0x10
544 	u8 reserved1;
545 	__be16 reserved2; /* was num_enabled_mc_addr; */
546 	struct ibmvnic_rc rc;
547 } __packed __aligned(8);
548 
549 struct ibmvnic_get_vpd_size {
550 	u8 first;
551 	u8 cmd;
552 	u8 reserved[14];
553 } __packed __aligned(8);
554 
555 struct ibmvnic_get_vpd_size_rsp {
556 	u8 first;
557 	u8 cmd;
558 	u8 reserved[2];
559 	__be64 len;
560 	struct ibmvnic_rc rc;
561 } __packed __aligned(8);
562 
563 struct ibmvnic_get_vpd {
564 	u8 first;
565 	u8 cmd;
566 	u8 reserved1[2];
567 	__be32 ioba;
568 	__be32 len;
569 	u8 reserved[4];
570 } __packed __aligned(8);
571 
572 struct ibmvnic_get_vpd_rsp {
573 	u8 first;
574 	u8 cmd;
575 	u8 reserved[10];
576 	struct ibmvnic_rc rc;
577 } __packed __aligned(8);
578 
579 struct ibmvnic_acl_change_indication {
580 	u8 first;
581 	u8 cmd;
582 	__be16 change_type;
583 #define IBMVNIC_MAC_ACL 0
584 #define IBMVNIC_VLAN_ACL 1
585 	u8 reserved[12];
586 } __packed __aligned(8);
587 
588 struct ibmvnic_acl_query {
589 	u8 first;
590 	u8 cmd;
591 	u8 reserved1[2];
592 	__be32 ioba;
593 	__be32 len;
594 	u8 reserved2[4];
595 } __packed __aligned(8);
596 
597 struct ibmvnic_tune {
598 	u8 first;
599 	u8 cmd;
600 	u8 reserved1[2];
601 	__be32 ioba;
602 	__be32 len;
603 	u8 reserved2[4];
604 } __packed __aligned(8);
605 
606 struct ibmvnic_request_map {
607 	u8 first;
608 	u8 cmd;
609 	u8 reserved1;
610 	u8 map_id;
611 	__be32 ioba;
612 	__be32 len;
613 	u8 reserved2[4];
614 } __packed __aligned(8);
615 
616 struct ibmvnic_request_map_rsp {
617 	u8 first;
618 	u8 cmd;
619 	u8 reserved1;
620 	u8 map_id;
621 	u8 reserved2[8];
622 	struct ibmvnic_rc rc;
623 } __packed __aligned(8);
624 
625 struct ibmvnic_request_unmap {
626 	u8 first;
627 	u8 cmd;
628 	u8 reserved1;
629 	u8 map_id;
630 	u8 reserved2[12];
631 } __packed __aligned(8);
632 
633 struct ibmvnic_request_unmap_rsp {
634 	u8 first;
635 	u8 cmd;
636 	u8 reserved1;
637 	u8 map_id;
638 	u8 reserved2[8];
639 	struct ibmvnic_rc rc;
640 } __packed __aligned(8);
641 
642 struct ibmvnic_query_map {
643 	u8 first;
644 	u8 cmd;
645 	u8 reserved[14];
646 } __packed __aligned(8);
647 
648 struct ibmvnic_query_map_rsp {
649 	u8 first;
650 	u8 cmd;
651 	u8 reserved;
652 	u8 page_size;
653 	__be32 tot_pages;
654 	__be32 free_pages;
655 	struct ibmvnic_rc rc;
656 } __packed __aligned(8);
657 
658 union ibmvnic_crq {
659 	struct ibmvnic_generic_crq generic;
660 	struct ibmvnic_version_exchange version_exchange;
661 	struct ibmvnic_version_exchange version_exchange_rsp;
662 	struct ibmvnic_capability query_capability;
663 	struct ibmvnic_capability query_capability_rsp;
664 	struct ibmvnic_capability request_capability;
665 	struct ibmvnic_capability request_capability_rsp;
666 	struct ibmvnic_login login;
667 	struct ibmvnic_generic_crq login_rsp;
668 	struct ibmvnic_phys_parms query_phys_parms;
669 	struct ibmvnic_phys_parms query_phys_parms_rsp;
670 	struct ibmvnic_phys_parms query_phys_capabilities;
671 	struct ibmvnic_phys_parms query_phys_capabilities_rsp;
672 	struct ibmvnic_phys_parms set_phys_parms;
673 	struct ibmvnic_phys_parms set_phys_parms_rsp;
674 	struct ibmvnic_logical_link_state logical_link_state;
675 	struct ibmvnic_logical_link_state logical_link_state_rsp;
676 	struct ibmvnic_query_ip_offload query_ip_offload;
677 	struct ibmvnic_query_ip_offload query_ip_offload_rsp;
678 	struct ibmvnic_control_ip_offload control_ip_offload;
679 	struct ibmvnic_control_ip_offload control_ip_offload_rsp;
680 	struct ibmvnic_request_dump_size request_dump_size;
681 	struct ibmvnic_request_dump_size request_dump_size_rsp;
682 	struct ibmvnic_request_dump request_dump;
683 	struct ibmvnic_request_dump_rsp request_dump_rsp;
684 	struct ibmvnic_request_ras_comp_num request_ras_comp_num;
685 	struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
686 	struct ibmvnic_request_ras_comps request_ras_comps;
687 	struct ibmvnic_request_ras_comps request_ras_comps_rsp;
688 	struct ibmvnic_control_ras control_ras;
689 	struct ibmvnic_control_ras control_ras_rsp;
690 	struct ibmvnic_collect_fw_trace collect_fw_trace;
691 	struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
692 	struct ibmvnic_request_statistics request_statistics;
693 	struct ibmvnic_generic_crq request_statistics_rsp;
694 	struct ibmvnic_request_debug_stats request_debug_stats;
695 	struct ibmvnic_request_debug_stats request_debug_stats_rsp;
696 	struct ibmvnic_error_indication error_indication;
697 	struct ibmvnic_link_state_indication link_state_indication;
698 	struct ibmvnic_change_mac_addr change_mac_addr;
699 	struct ibmvnic_change_mac_addr change_mac_addr_rsp;
700 	struct ibmvnic_multicast_ctrl multicast_ctrl;
701 	struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
702 	struct ibmvnic_get_vpd_size get_vpd_size;
703 	struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
704 	struct ibmvnic_get_vpd get_vpd;
705 	struct ibmvnic_get_vpd_rsp get_vpd_rsp;
706 	struct ibmvnic_acl_change_indication acl_change_indication;
707 	struct ibmvnic_acl_query acl_query;
708 	struct ibmvnic_generic_crq acl_query_rsp;
709 	struct ibmvnic_tune tune;
710 	struct ibmvnic_generic_crq tune_rsp;
711 	struct ibmvnic_request_map request_map;
712 	struct ibmvnic_request_map_rsp request_map_rsp;
713 	struct ibmvnic_request_unmap request_unmap;
714 	struct ibmvnic_request_unmap_rsp request_unmap_rsp;
715 	struct ibmvnic_query_map query_map;
716 	struct ibmvnic_query_map_rsp query_map_rsp;
717 };
718 
719 enum ibmvnic_rc_codes {
720 	SUCCESS = 0,
721 	PARTIALSUCCESS = 1,
722 	PERMISSION = 2,
723 	NOMEMORY = 3,
724 	PARAMETER = 4,
725 	UNKNOWNCOMMAND = 5,
726 	ABORTED = 6,
727 	INVALIDSTATE = 7,
728 	INVALIDIOBA = 8,
729 	INVALIDLENGTH = 9,
730 	UNSUPPORTEDOPTION = 10,
731 };
732 
733 enum ibmvnic_capabilities {
734 	MIN_TX_QUEUES = 1,
735 	MIN_RX_QUEUES = 2,
736 	MIN_RX_ADD_QUEUES = 3,
737 	MAX_TX_QUEUES = 4,
738 	MAX_RX_QUEUES = 5,
739 	MAX_RX_ADD_QUEUES = 6,
740 	REQ_TX_QUEUES = 7,
741 	REQ_RX_QUEUES = 8,
742 	REQ_RX_ADD_QUEUES = 9,
743 	MIN_TX_ENTRIES_PER_SUBCRQ = 10,
744 	MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
745 	MAX_TX_ENTRIES_PER_SUBCRQ = 12,
746 	MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
747 	REQ_TX_ENTRIES_PER_SUBCRQ = 14,
748 	REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
749 	TCP_IP_OFFLOAD = 16,
750 	PROMISC_REQUESTED = 17,
751 	PROMISC_SUPPORTED = 18,
752 	MIN_MTU = 19,
753 	MAX_MTU = 20,
754 	REQ_MTU = 21,
755 	MAX_MULTICAST_FILTERS = 22,
756 	VLAN_HEADER_INSERTION = 23,
757 	RX_VLAN_HEADER_INSERTION = 24,
758 	MAX_TX_SG_ENTRIES = 25,
759 	RX_SG_SUPPORTED = 26,
760 	RX_SG_REQUESTED = 27,
761 	OPT_TX_COMP_SUB_QUEUES = 28,
762 	OPT_RX_COMP_QUEUES = 29,
763 	OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
764 	OPT_TX_ENTRIES_PER_SUBCRQ = 31,
765 	OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
766 	TX_RX_DESC_REQ = 33,
767 };
768 
769 enum ibmvnic_error_cause {
770 	ADAPTER_PROBLEM = 0,
771 	BUS_PROBLEM = 1,
772 	FW_PROBLEM = 2,
773 	DD_PROBLEM = 3,
774 	EEH_RECOVERY = 4,
775 	FW_UPDATED = 5,
776 	LOW_MEMORY = 6,
777 };
778 
779 enum ibmvnic_commands {
780 	VERSION_EXCHANGE = 0x01,
781 	VERSION_EXCHANGE_RSP = 0x81,
782 	QUERY_CAPABILITY = 0x02,
783 	QUERY_CAPABILITY_RSP = 0x82,
784 	REQUEST_CAPABILITY = 0x03,
785 	REQUEST_CAPABILITY_RSP = 0x83,
786 	LOGIN = 0x04,
787 	LOGIN_RSP = 0x84,
788 	QUERY_PHYS_PARMS = 0x05,
789 	QUERY_PHYS_PARMS_RSP = 0x85,
790 	QUERY_PHYS_CAPABILITIES = 0x06,
791 	QUERY_PHYS_CAPABILITIES_RSP = 0x86,
792 	SET_PHYS_PARMS = 0x07,
793 	SET_PHYS_PARMS_RSP = 0x87,
794 	ERROR_INDICATION = 0x08,
795 	LOGICAL_LINK_STATE = 0x0C,
796 	LOGICAL_LINK_STATE_RSP = 0x8C,
797 	REQUEST_STATISTICS = 0x0D,
798 	REQUEST_STATISTICS_RSP = 0x8D,
799 	COLLECT_FW_TRACE = 0x11,
800 	COLLECT_FW_TRACE_RSP = 0x91,
801 	LINK_STATE_INDICATION = 0x12,
802 	CHANGE_MAC_ADDR = 0x13,
803 	CHANGE_MAC_ADDR_RSP = 0x93,
804 	MULTICAST_CTRL = 0x14,
805 	MULTICAST_CTRL_RSP = 0x94,
806 	GET_VPD_SIZE = 0x15,
807 	GET_VPD_SIZE_RSP = 0x95,
808 	GET_VPD = 0x16,
809 	GET_VPD_RSP = 0x96,
810 	TUNE = 0x17,
811 	TUNE_RSP = 0x97,
812 	QUERY_IP_OFFLOAD = 0x18,
813 	QUERY_IP_OFFLOAD_RSP = 0x98,
814 	CONTROL_IP_OFFLOAD = 0x19,
815 	CONTROL_IP_OFFLOAD_RSP = 0x99,
816 	ACL_CHANGE_INDICATION = 0x1A,
817 	ACL_QUERY = 0x1B,
818 	ACL_QUERY_RSP = 0x9B,
819 	QUERY_MAP = 0x1D,
820 	QUERY_MAP_RSP = 0x9D,
821 	REQUEST_MAP = 0x1E,
822 	REQUEST_MAP_RSP = 0x9E,
823 	REQUEST_UNMAP = 0x1F,
824 	REQUEST_UNMAP_RSP = 0x9F,
825 	VLAN_CTRL = 0x20,
826 	VLAN_CTRL_RSP = 0xA0,
827 };
828 
829 enum ibmvnic_crq_type {
830 	IBMVNIC_CRQ_CMD			= 0x80,
831 	IBMVNIC_CRQ_CMD_RSP		= 0x80,
832 	IBMVNIC_CRQ_INIT_CMD		= 0xC0,
833 	IBMVNIC_CRQ_INIT_RSP		= 0xC0,
834 	IBMVNIC_CRQ_XPORT_EVENT		= 0xFF,
835 };
836 
837 enum ibmvfc_crq_format {
838 	IBMVNIC_CRQ_INIT                 = 0x01,
839 	IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
840 	IBMVNIC_PARTITION_MIGRATED       = 0x06,
841 	IBMVNIC_DEVICE_FAILOVER          = 0x08,
842 };
843 
844 struct ibmvnic_crq_queue {
845 	union ibmvnic_crq *msgs;
846 	int size, cur;
847 	dma_addr_t msg_token;
848 	spinlock_t lock;
849 	bool active;
850 	char name[32];
851 };
852 
853 union sub_crq {
854 	struct ibmvnic_generic_scrq generic;
855 	struct ibmvnic_tx_comp_desc tx_comp;
856 	struct ibmvnic_tx_desc v1;
857 	struct ibmvnic_hdr_desc hdr;
858 	struct ibmvnic_hdr_ext_desc hdr_ext;
859 	struct ibmvnic_sge_desc sge;
860 	struct ibmvnic_rx_comp_desc rx_comp;
861 	struct ibmvnic_rx_buff_add_desc rx_add;
862 };
863 
864 struct ibmvnic_sub_crq_queue {
865 	union sub_crq *msgs;
866 	int size, cur;
867 	dma_addr_t msg_token;
868 	unsigned long crq_num;
869 	unsigned long hw_irq;
870 	unsigned int irq;
871 	unsigned int pool_index;
872 	int scrq_num;
873 	spinlock_t lock;
874 	struct sk_buff *rx_skb_top;
875 	struct ibmvnic_adapter *adapter;
876 	atomic_t used;
877 	char name[32];
878 };
879 
880 struct ibmvnic_long_term_buff {
881 	unsigned char *buff;
882 	dma_addr_t addr;
883 	u64 size;
884 	u8 map_id;
885 };
886 
887 struct ibmvnic_tx_buff {
888 	struct sk_buff *skb;
889 	dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
890 	unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
891 	int index;
892 	int pool_index;
893 	bool last_frag;
894 	union sub_crq indir_arr[6];
895 	u8 hdr_data[140];
896 	dma_addr_t indir_dma;
897 	int num_entries;
898 };
899 
900 struct ibmvnic_tx_pool {
901 	struct ibmvnic_tx_buff *tx_buff;
902 	int *free_map;
903 	int consumer_index;
904 	int producer_index;
905 	struct ibmvnic_long_term_buff long_term_buff;
906 	int num_buffers;
907 	int buf_size;
908 };
909 
910 struct ibmvnic_rx_buff {
911 	struct sk_buff *skb;
912 	dma_addr_t dma;
913 	unsigned char *data;
914 	int size;
915 	int pool_index;
916 };
917 
918 struct ibmvnic_rx_pool {
919 	struct ibmvnic_rx_buff *rx_buff;
920 	int size;
921 	int index;
922 	int buff_size;
923 	atomic_t available;
924 	int *free_map;
925 	int next_free;
926 	int next_alloc;
927 	int active;
928 	struct ibmvnic_long_term_buff long_term_buff;
929 };
930 
931 struct ibmvnic_vpd {
932 	unsigned char *buff;
933 	dma_addr_t dma_addr;
934 	u64 len;
935 };
936 
937 enum vnic_state {VNIC_PROBING = 1,
938 		 VNIC_PROBED,
939 		 VNIC_OPENING,
940 		 VNIC_OPEN,
941 		 VNIC_CLOSING,
942 		 VNIC_CLOSED,
943 		 VNIC_REMOVING,
944 		 VNIC_REMOVED,
945 		 VNIC_RESETTING};
946 
947 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
948 			   VNIC_RESET_MOBILITY,
949 			   VNIC_RESET_FATAL,
950 			   VNIC_RESET_NON_FATAL,
951 			   VNIC_RESET_TIMEOUT,
952 			   VNIC_RESET_CHANGE_PARAM};
953 
954 struct ibmvnic_rwi {
955 	enum ibmvnic_reset_reason reset_reason;
956 	struct list_head list;
957 };
958 
959 struct ibmvnic_tunables {
960 	u64 rx_queues;
961 	u64 tx_queues;
962 	u64 rx_entries;
963 	u64 tx_entries;
964 	u64 mtu;
965 };
966 
967 struct ibmvnic_adapter {
968 	struct vio_dev *vdev;
969 	struct net_device *netdev;
970 	struct ibmvnic_crq_queue crq;
971 	u8 mac_addr[ETH_ALEN];
972 	struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
973 	dma_addr_t ip_offload_tok;
974 	struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
975 	dma_addr_t ip_offload_ctrl_tok;
976 	u32 msg_enable;
977 	u32 priv_flags;
978 
979 	/* Vital Product Data (VPD) */
980 	struct ibmvnic_vpd *vpd;
981 	char fw_version[32];
982 
983 	/* Statistics */
984 	struct ibmvnic_statistics stats;
985 	dma_addr_t stats_token;
986 	struct completion stats_done;
987 	spinlock_t stats_lock;
988 	int replenish_no_mem;
989 	int replenish_add_buff_success;
990 	int replenish_add_buff_failure;
991 	int replenish_task_cycles;
992 	int tx_send_failed;
993 	int tx_map_failed;
994 
995 	struct ibmvnic_tx_queue_stats *tx_stats_buffers;
996 	struct ibmvnic_rx_queue_stats *rx_stats_buffers;
997 
998 	int phys_link_state;
999 	int logical_link_state;
1000 
1001 	u32 speed;
1002 	u8 duplex;
1003 
1004 	/* login data */
1005 	struct ibmvnic_login_buffer *login_buf;
1006 	dma_addr_t login_buf_token;
1007 	int login_buf_sz;
1008 
1009 	struct ibmvnic_login_rsp_buffer *login_rsp_buf;
1010 	dma_addr_t login_rsp_buf_token;
1011 	int login_rsp_buf_sz;
1012 
1013 	atomic_t running_cap_crqs;
1014 	bool wait_capability;
1015 
1016 	struct ibmvnic_sub_crq_queue **tx_scrq;
1017 	struct ibmvnic_sub_crq_queue **rx_scrq;
1018 
1019 	/* rx structs */
1020 	struct napi_struct *napi;
1021 	struct ibmvnic_rx_pool *rx_pool;
1022 	u64 promisc;
1023 
1024 	struct ibmvnic_tx_pool *tx_pool;
1025 	struct ibmvnic_tx_pool *tso_pool;
1026 	struct completion init_done;
1027 	int init_done_rc;
1028 
1029 	struct completion fw_done;
1030 	/* Used for serialization of device commands */
1031 	struct mutex fw_lock;
1032 	int fw_done_rc;
1033 
1034 	struct completion reset_done;
1035 	int reset_done_rc;
1036 	bool wait_for_reset;
1037 
1038 	/* partner capabilities */
1039 	u64 min_tx_queues;
1040 	u64 min_rx_queues;
1041 	u64 min_rx_add_queues;
1042 	u64 max_tx_queues;
1043 	u64 max_rx_queues;
1044 	u64 max_rx_add_queues;
1045 	u64 req_tx_queues;
1046 	u64 req_rx_queues;
1047 	u64 req_rx_add_queues;
1048 	u64 min_tx_entries_per_subcrq;
1049 	u64 min_rx_add_entries_per_subcrq;
1050 	u64 max_tx_entries_per_subcrq;
1051 	u64 max_rx_add_entries_per_subcrq;
1052 	u64 req_tx_entries_per_subcrq;
1053 	u64 req_rx_add_entries_per_subcrq;
1054 	u64 tcp_ip_offload;
1055 	u64 promisc_requested;
1056 	u64 promisc_supported;
1057 	u64 min_mtu;
1058 	u64 max_mtu;
1059 	u64 req_mtu;
1060 	u64 max_multicast_filters;
1061 	u64 vlan_header_insertion;
1062 	u64 rx_vlan_header_insertion;
1063 	u64 max_tx_sg_entries;
1064 	u64 rx_sg_supported;
1065 	u64 rx_sg_requested;
1066 	u64 opt_tx_comp_sub_queues;
1067 	u64 opt_rx_comp_queues;
1068 	u64 opt_rx_bufadd_q_per_rx_comp_q;
1069 	u64 opt_tx_entries_per_subcrq;
1070 	u64 opt_rxba_entries_per_subcrq;
1071 	__be64 tx_rx_desc_req;
1072 	u8 map_id;
1073 	u32 num_active_rx_scrqs;
1074 	u32 num_active_rx_pools;
1075 	u32 num_active_rx_napi;
1076 	u32 num_active_tx_scrqs;
1077 	u32 num_active_tx_pools;
1078 
1079 	struct tasklet_struct tasklet;
1080 	enum vnic_state state;
1081 	enum ibmvnic_reset_reason reset_reason;
1082 	spinlock_t rwi_lock;
1083 	struct list_head rwi_list;
1084 	struct work_struct ibmvnic_reset;
1085 	struct delayed_work ibmvnic_delayed_reset;
1086 	unsigned long resetting;
1087 	bool napi_enabled, from_passive_init;
1088 
1089 	bool failover_pending;
1090 	bool force_reset_recovery;
1091 
1092 	struct ibmvnic_tunables desired;
1093 	struct ibmvnic_tunables fallback;
1094 
1095 	/* Used for serializatin of state field */
1096 	spinlock_t state_lock;
1097 };
1098