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1 /*
2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
3  * All rights reserved
4  * www.brocade.com
5  *
6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License (GPL) Version 2 as
10  * published by the Free Software Foundation
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  */
17 
18 #ifndef __BFI_MS_H__
19 #define __BFI_MS_H__
20 
21 #include "bfi.h"
22 #include "bfa_fc.h"
23 #include "bfa_defs_svc.h"
24 
25 #pragma pack(1)
26 
27 enum bfi_iocfc_h2i_msgs {
28 	BFI_IOCFC_H2I_CFG_REQ		= 1,
29 	BFI_IOCFC_H2I_SET_INTR_REQ	= 2,
30 	BFI_IOCFC_H2I_UPDATEQ_REQ	= 3,
31 	BFI_IOCFC_H2I_FAA_QUERY_REQ	= 4,
32 	BFI_IOCFC_H2I_ADDR_REQ		= 5,
33 };
34 
35 enum bfi_iocfc_i2h_msgs {
36 	BFI_IOCFC_I2H_CFG_REPLY		= BFA_I2HM(1),
37 	BFI_IOCFC_I2H_UPDATEQ_RSP	= BFA_I2HM(3),
38 	BFI_IOCFC_I2H_FAA_QUERY_RSP	= BFA_I2HM(4),
39 	BFI_IOCFC_I2H_ADDR_MSG		= BFA_I2HM(5),
40 };
41 
42 struct bfi_iocfc_cfg_s {
43 	u8	num_cqs;	/*  Number of CQs to be used	*/
44 	u8	 sense_buf_len;	/*  SCSI sense length	    */
45 	u16	rsvd_1;
46 	u32	endian_sig;	/*  endian signature of host     */
47 	u8	rsvd_2;
48 	u8	single_msix_vec;
49 	u8	rsvd[2];
50 	__be16	num_ioim_reqs;
51 	__be16	num_fwtio_reqs;
52 
53 
54 	/*
55 	 * Request and response circular queue base addresses, size and
56 	 * shadow index pointers.
57 	 */
58 	union bfi_addr_u  req_cq_ba[BFI_IOC_MAX_CQS];
59 	union bfi_addr_u  req_shadow_ci[BFI_IOC_MAX_CQS];
60 	__be16    req_cq_elems[BFI_IOC_MAX_CQS];
61 	union bfi_addr_u  rsp_cq_ba[BFI_IOC_MAX_CQS];
62 	union bfi_addr_u  rsp_shadow_pi[BFI_IOC_MAX_CQS];
63 	__be16    rsp_cq_elems[BFI_IOC_MAX_CQS];
64 
65 	union bfi_addr_u  stats_addr;	/*  DMA-able address for stats	  */
66 	union bfi_addr_u  cfgrsp_addr;	/*  config response dma address  */
67 	union bfi_addr_u  ioim_snsbase[BFI_IOIM_SNSBUF_SEGS];
68 					/*  IO sense buf base addr segments */
69 	struct bfa_iocfc_intr_attr_s intr_attr; /*  IOC interrupt attributes */
70 };
71 
72 /*
73  * Boot target wwn information for this port. This contains either the stored
74  * or discovered boot target port wwns for the port.
75  */
76 struct bfi_iocfc_bootwwns {
77 	wwn_t		wwn[BFA_BOOT_BOOTLUN_MAX];
78 	u8		nwwns;
79 	u8		rsvd[7];
80 };
81 
82 /**
83  * Queue configuration response from firmware
84  */
85 struct bfi_iocfc_qreg_s {
86 	u32	cpe_q_ci_off[BFI_IOC_MAX_CQS];
87 	u32	cpe_q_pi_off[BFI_IOC_MAX_CQS];
88 	u32	cpe_qctl_off[BFI_IOC_MAX_CQS];
89 	u32	rme_q_ci_off[BFI_IOC_MAX_CQS];
90 	u32	rme_q_pi_off[BFI_IOC_MAX_CQS];
91 	u32	rme_qctl_off[BFI_IOC_MAX_CQS];
92 	u8	hw_qid[BFI_IOC_MAX_CQS];
93 };
94 
95 struct bfi_iocfc_cfgrsp_s {
96 	struct bfa_iocfc_fwcfg_s	fwcfg;
97 	struct bfa_iocfc_intr_attr_s	intr_attr;
98 	struct bfi_iocfc_bootwwns	bootwwns;
99 	struct bfi_pbc_s		pbc_cfg;
100 	struct bfi_iocfc_qreg_s		qreg;
101 };
102 
103 /*
104  * BFI_IOCFC_H2I_CFG_REQ message
105  */
106 struct bfi_iocfc_cfg_req_s {
107 	struct bfi_mhdr_s      mh;
108 	union bfi_addr_u      ioc_cfg_dma_addr;
109 };
110 
111 
112 /*
113  * BFI_IOCFC_I2H_CFG_REPLY message
114  */
115 struct bfi_iocfc_cfg_reply_s {
116 	struct bfi_mhdr_s  mh;		/*  Common msg header	  */
117 	u8	 cfg_success;	/*  cfg reply status	   */
118 	u8	 lpu_bm;		/*  LPUs assigned for this IOC */
119 	u8	 rsvd[2];
120 };
121 
122 
123 /*
124  * BFI_IOCFC_H2I_SET_INTR_REQ message
125  */
126 struct bfi_iocfc_set_intr_req_s {
127 	struct bfi_mhdr_s mh;		/*  common msg header		*/
128 	u8		coalesce;	/*  enable intr coalescing	*/
129 	u8		rsvd[3];
130 	__be16	delay;		/*  delay timer 0..1125us	*/
131 	__be16	latency;	/*  latency timer 0..225us	*/
132 };
133 
134 
135 /*
136  * BFI_IOCFC_H2I_UPDATEQ_REQ message
137  */
138 struct bfi_iocfc_updateq_req_s {
139 	struct bfi_mhdr_s mh;		/*  common msg header		*/
140 	u32 reqq_ba;		/*  reqq base addr		*/
141 	u32 rspq_ba;		/*  rspq base addr		*/
142 	u32 reqq_sci;		/*  reqq shadow ci		*/
143 	u32 rspq_spi;		/*  rspq shadow pi		*/
144 };
145 
146 
147 /*
148  * BFI_IOCFC_I2H_UPDATEQ_RSP message
149  */
150 struct bfi_iocfc_updateq_rsp_s {
151 	struct bfi_mhdr_s mh;		/*  common msg header	*/
152 	u8	status;			/*  updateq  status	*/
153 	u8	rsvd[3];
154 };
155 
156 
157 /*
158  * H2I Messages
159  */
160 union bfi_iocfc_h2i_msg_u {
161 	struct bfi_mhdr_s		mh;
162 	struct bfi_iocfc_cfg_req_s	cfg_req;
163 	struct bfi_iocfc_updateq_req_s updateq_req;
164 	u32 mboxmsg[BFI_IOC_MSGSZ];
165 };
166 
167 
168 /*
169  * I2H Messages
170  */
171 union bfi_iocfc_i2h_msg_u {
172 	struct bfi_mhdr_s		mh;
173 	struct bfi_iocfc_cfg_reply_s	cfg_reply;
174 	struct bfi_iocfc_updateq_rsp_s updateq_rsp;
175 	u32 mboxmsg[BFI_IOC_MSGSZ];
176 };
177 
178 /*
179  * BFI_IOCFC_H2I_FAA_ENABLE_REQ BFI_IOCFC_H2I_FAA_DISABLE_REQ message
180  */
181 struct bfi_faa_en_dis_s {
182 	struct bfi_mhdr_s mh;	/* common msg header    */
183 };
184 
185 struct bfi_faa_addr_msg_s {
186 	struct  bfi_mhdr_s mh;	/* common msg header	*/
187 	u8	rsvd[4];
188 	wwn_t	pwwn;		/* Fabric acquired PWWN	*/
189 	wwn_t	nwwn;		/* Fabric acquired PWWN	*/
190 };
191 
192 /*
193  * BFI_IOCFC_H2I_FAA_QUERY_REQ message
194  */
195 struct bfi_faa_query_s {
196 	struct bfi_mhdr_s mh;	/* common msg header    */
197 	u8	faa_status;	/* FAA status           */
198 	u8	addr_source;	/* PWWN source          */
199 	u8	rsvd[2];
200 	wwn_t	faa;		/* Fabric acquired PWWN	*/
201 };
202 
203 /*
204  * BFI_IOCFC_I2H_FAA_ENABLE_RSP, BFI_IOCFC_I2H_FAA_DISABLE_RSP message
205  */
206 struct bfi_faa_en_dis_rsp_s {
207 	struct bfi_mhdr_s mh;	/* common msg header    */
208 	u8	status;		/* updateq  status      */
209 	u8	rsvd[3];
210 };
211 
212 /*
213  * BFI_IOCFC_I2H_FAA_QUERY_RSP message
214  */
215 #define bfi_faa_query_rsp_t struct bfi_faa_query_s
216 
217 enum bfi_fcport_h2i {
218 	BFI_FCPORT_H2I_ENABLE_REQ		= (1),
219 	BFI_FCPORT_H2I_DISABLE_REQ		= (2),
220 	BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ	= (3),
221 	BFI_FCPORT_H2I_STATS_GET_REQ		= (4),
222 	BFI_FCPORT_H2I_STATS_CLEAR_REQ		= (5),
223 };
224 
225 
226 enum bfi_fcport_i2h {
227 	BFI_FCPORT_I2H_ENABLE_RSP		= BFA_I2HM(1),
228 	BFI_FCPORT_I2H_DISABLE_RSP		= BFA_I2HM(2),
229 	BFI_FCPORT_I2H_SET_SVC_PARAMS_RSP	= BFA_I2HM(3),
230 	BFI_FCPORT_I2H_STATS_GET_RSP		= BFA_I2HM(4),
231 	BFI_FCPORT_I2H_STATS_CLEAR_RSP		= BFA_I2HM(5),
232 	BFI_FCPORT_I2H_EVENT			= BFA_I2HM(6),
233 	BFI_FCPORT_I2H_TRUNK_SCN		= BFA_I2HM(7),
234 	BFI_FCPORT_I2H_ENABLE_AEN		= BFA_I2HM(8),
235 	BFI_FCPORT_I2H_DISABLE_AEN		= BFA_I2HM(9),
236 };
237 
238 
239 /*
240  * Generic REQ type
241  */
242 struct bfi_fcport_req_s {
243 	struct bfi_mhdr_s  mh;		/*  msg header			    */
244 	u32	   msgtag;	/*  msgtag for reply		    */
245 };
246 
247 /*
248  * Generic RSP type
249  */
250 struct bfi_fcport_rsp_s {
251 	struct bfi_mhdr_s  mh;		/*  common msg header		    */
252 	u8		   status;	/*  port enable status		    */
253 	u8		   rsvd[3];
254 	struct	bfa_port_cfg_s port_cfg;/* port configuration	*/
255 	u32	msgtag;			/* msgtag for reply	*/
256 };
257 
258 /*
259  * BFI_FCPORT_H2I_ENABLE_REQ
260  */
261 struct bfi_fcport_enable_req_s {
262 	struct bfi_mhdr_s  mh;		/*  msg header			    */
263 	u32	   rsvd1;
264 	wwn_t		   nwwn;	/*  node wwn of physical port	    */
265 	wwn_t		   pwwn;	/*  port wwn of physical port	    */
266 	struct bfa_port_cfg_s port_cfg; /*  port configuration	    */
267 	union bfi_addr_u   stats_dma_addr; /*  DMA address for stats	    */
268 	u32	   msgtag;	/*  msgtag for reply		    */
269 	u8	use_flash_cfg;	/* get prot cfg from flash */
270 	u8	rsvd2[3];
271 };
272 
273 /*
274  * BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ
275  */
276 struct bfi_fcport_set_svc_params_req_s {
277 	struct bfi_mhdr_s  mh;		/*  msg header */
278 	__be16	   tx_bbcredit;	/*  Tx credits */
279 	u8	bb_scn;		/* BB_SC FC credit recovery */
280 	u8	rsvd;
281 };
282 
283 /*
284  * BFI_FCPORT_I2H_EVENT
285  */
286 struct bfi_fcport_event_s {
287 	struct bfi_mhdr_s	mh;	/*  common msg header */
288 	struct bfa_port_link_s	link_state;
289 };
290 
291 /*
292  * BFI_FCPORT_I2H_TRUNK_SCN
293  */
294 struct bfi_fcport_trunk_link_s {
295 	wwn_t			trunk_wwn;
296 	u8			fctl;		/* bfa_trunk_link_fctl_t */
297 	u8			state;		/* bfa_trunk_link_state_t */
298 	u8			speed;		/* bfa_port_speed_t */
299 	u8			rsvd;
300 	__be32		deskew;
301 };
302 
303 #define BFI_FCPORT_MAX_LINKS	2
304 struct bfi_fcport_trunk_scn_s {
305 	struct bfi_mhdr_s	mh;
306 	u8			trunk_state;	/* bfa_trunk_state_t */
307 	u8			trunk_speed;	/* bfa_port_speed_t */
308 	u8			rsvd_a[2];
309 	struct bfi_fcport_trunk_link_s tlink[BFI_FCPORT_MAX_LINKS];
310 };
311 
312 /*
313  * fcport H2I message
314  */
315 union bfi_fcport_h2i_msg_u {
316 	struct bfi_mhdr_s			*mhdr;
317 	struct bfi_fcport_enable_req_s		*penable;
318 	struct bfi_fcport_req_s			*pdisable;
319 	struct bfi_fcport_set_svc_params_req_s	*psetsvcparams;
320 	struct bfi_fcport_req_s			*pstatsget;
321 	struct bfi_fcport_req_s			*pstatsclear;
322 };
323 
324 /*
325  * fcport I2H message
326  */
327 union bfi_fcport_i2h_msg_u {
328 	struct bfi_msg_s			*msg;
329 	struct bfi_fcport_rsp_s			*penable_rsp;
330 	struct bfi_fcport_rsp_s			*pdisable_rsp;
331 	struct bfi_fcport_rsp_s			*psetsvcparams_rsp;
332 	struct bfi_fcport_rsp_s			*pstatsget_rsp;
333 	struct bfi_fcport_rsp_s			*pstatsclear_rsp;
334 	struct bfi_fcport_event_s		*event;
335 	struct bfi_fcport_trunk_scn_s		*trunk_scn;
336 };
337 
338 enum bfi_fcxp_h2i {
339 	BFI_FCXP_H2I_SEND_REQ = 1,
340 };
341 
342 enum bfi_fcxp_i2h {
343 	BFI_FCXP_I2H_SEND_RSP = BFA_I2HM(1),
344 };
345 
346 #define BFA_FCXP_MAX_SGES	2
347 
348 /*
349  * FCXP send request structure
350  */
351 struct bfi_fcxp_send_req_s {
352 	struct bfi_mhdr_s  mh;		/*  Common msg header		    */
353 	__be16	fcxp_tag;	/*  driver request tag		    */
354 	__be16	max_frmsz;	/*  max send frame size	    */
355 	__be16	vf_id;		/*  vsan tag if applicable	    */
356 	u16	rport_fw_hndl;	/*  FW Handle for the remote port  */
357 	u8	 class;		/*  FC class used for req/rsp	    */
358 	u8	 rsp_timeout;	/*  timeout in secs, 0-no response */
359 	u8	 cts;		/*  continue sequence		    */
360 	u8	 lp_fwtag;	/*  lport tag			    */
361 	struct fchs_s	fchs;	/*  request FC header structure    */
362 	__be32	req_len;	/*  request payload length	    */
363 	__be32	rsp_maxlen;	/*  max response length expected   */
364 	struct bfi_alen_s req_alen;	/* request buffer	*/
365 	struct bfi_alen_s rsp_alen;	/* response buffer	*/
366 };
367 
368 /*
369  * FCXP send response structure
370  */
371 struct bfi_fcxp_send_rsp_s {
372 	struct bfi_mhdr_s  mh;		/*  Common msg header		    */
373 	__be16	fcxp_tag;	/*  send request tag		    */
374 	u8	 req_status;	/*  request status		    */
375 	u8	 rsvd;
376 	__be32	rsp_len;	/*  actual response length	    */
377 	__be32	residue_len;	/*  residual response length	    */
378 	struct fchs_s	fchs;	/*  response FC header structure   */
379 };
380 
381 enum bfi_uf_h2i {
382 	BFI_UF_H2I_BUF_POST = 1,
383 };
384 
385 enum bfi_uf_i2h {
386 	BFI_UF_I2H_FRM_RCVD = BFA_I2HM(1),
387 };
388 
389 #define BFA_UF_MAX_SGES	2
390 
391 struct bfi_uf_buf_post_s {
392 	struct bfi_mhdr_s  mh;		/*  Common msg header		*/
393 	u16	buf_tag;	/*  buffer tag			*/
394 	__be16	buf_len;	/*  total buffer length	*/
395 	struct bfi_alen_s alen;	/* buffer address/len pair	*/
396 };
397 
398 struct bfi_uf_frm_rcvd_s {
399 	struct bfi_mhdr_s  mh;		/*  Common msg header		*/
400 	u16	buf_tag;	/*  buffer tag			*/
401 	u16	rsvd;
402 	u16	frm_len;	/*  received frame length	*/
403 	u16	xfr_len;	/*  tranferred length		*/
404 };
405 
406 enum bfi_lps_h2i_msgs {
407 	BFI_LPS_H2I_LOGIN_REQ	= 1,
408 	BFI_LPS_H2I_LOGOUT_REQ	= 2,
409 	BFI_LPS_H2I_N2N_PID_REQ = 3,
410 };
411 
412 enum bfi_lps_i2h_msgs {
413 	BFI_LPS_I2H_LOGIN_RSP	= BFA_I2HM(1),
414 	BFI_LPS_I2H_LOGOUT_RSP	= BFA_I2HM(2),
415 	BFI_LPS_I2H_CVL_EVENT	= BFA_I2HM(3),
416 };
417 
418 struct bfi_lps_login_req_s {
419 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
420 	u8		bfa_tag;
421 	u8		alpa;
422 	__be16		pdu_size;
423 	wwn_t		pwwn;
424 	wwn_t		nwwn;
425 	u8		fdisc;
426 	u8		auth_en;
427 	u8		lps_role;
428 	u8		bb_scn;
429 };
430 
431 struct bfi_lps_login_rsp_s {
432 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
433 	u8		fw_tag;
434 	u8		status;
435 	u8		lsrjt_rsn;
436 	u8		lsrjt_expl;
437 	wwn_t		port_name;
438 	wwn_t		node_name;
439 	__be16		bb_credit;
440 	u8		f_port;
441 	u8		npiv_en;
442 	u32	lp_pid:24;
443 	u32	auth_req:8;
444 	mac_t		lp_mac;
445 	mac_t		fcf_mac;
446 	u8		ext_status;
447 	u8		brcd_switch;	/*  attached peer is brcd switch */
448 	u8		bb_scn;		/* atatched port's bb_scn */
449 	u8		bfa_tag;
450 };
451 
452 struct bfi_lps_logout_req_s {
453 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
454 	u8		fw_tag;
455 	u8		rsvd[3];
456 	wwn_t		port_name;
457 };
458 
459 struct bfi_lps_logout_rsp_s {
460 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
461 	u8		bfa_tag;
462 	u8		status;
463 	u8		rsvd[2];
464 };
465 
466 struct bfi_lps_cvl_event_s {
467 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
468 	u8		bfa_tag;
469 	u8		rsvd[3];
470 };
471 
472 struct bfi_lps_n2n_pid_req_s {
473 	struct bfi_mhdr_s	mh;	/*  common msg header		*/
474 	u8	fw_tag;
475 	u32	lp_pid:24;
476 };
477 
478 union bfi_lps_h2i_msg_u {
479 	struct bfi_mhdr_s		*msg;
480 	struct bfi_lps_login_req_s	*login_req;
481 	struct bfi_lps_logout_req_s	*logout_req;
482 	struct bfi_lps_n2n_pid_req_s	*n2n_pid_req;
483 };
484 
485 union bfi_lps_i2h_msg_u {
486 	struct bfi_msg_s		*msg;
487 	struct bfi_lps_login_rsp_s	*login_rsp;
488 	struct bfi_lps_logout_rsp_s	*logout_rsp;
489 	struct bfi_lps_cvl_event_s	*cvl_event;
490 };
491 
492 enum bfi_rport_h2i_msgs {
493 	BFI_RPORT_H2I_CREATE_REQ = 1,
494 	BFI_RPORT_H2I_DELETE_REQ = 2,
495 	BFI_RPORT_H2I_SET_SPEED_REQ  = 3,
496 };
497 
498 enum bfi_rport_i2h_msgs {
499 	BFI_RPORT_I2H_CREATE_RSP = BFA_I2HM(1),
500 	BFI_RPORT_I2H_DELETE_RSP = BFA_I2HM(2),
501 	BFI_RPORT_I2H_QOS_SCN    = BFA_I2HM(3),
502 };
503 
504 struct bfi_rport_create_req_s {
505 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
506 	u16	bfa_handle;	/*  host rport handle		*/
507 	__be16	max_frmsz;	/*  max rcv pdu size		*/
508 	u32	pid:24,	/*  remote port ID		*/
509 		lp_fwtag:8;	/*  local port tag		*/
510 	u32	local_pid:24,	/*  local port ID		*/
511 		cisc:8;
512 	u8	fc_class;	/*  supported FC classes	*/
513 	u8	vf_en;		/*  virtual fabric enable	*/
514 	u16	vf_id;		/*  virtual fabric ID		*/
515 };
516 
517 struct bfi_rport_create_rsp_s {
518 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
519 	u8		status;		/*  rport creation status	*/
520 	u8		rsvd[3];
521 	u16	bfa_handle;	/*  host rport handle		*/
522 	u16	fw_handle;	/*  firmware rport handle	*/
523 	struct bfa_rport_qos_attr_s qos_attr;  /* QoS Attributes */
524 };
525 
526 struct bfa_rport_speed_req_s {
527 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
528 	u16	fw_handle;	/*  firmware rport handle	*/
529 	u8		speed;		/*  rport's speed via RPSC	*/
530 	u8		rsvd;
531 };
532 
533 struct bfi_rport_delete_req_s {
534 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
535 	u16	fw_handle;	/*  firmware rport handle	*/
536 	u16	rsvd;
537 };
538 
539 struct bfi_rport_delete_rsp_s {
540 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
541 	u16	bfa_handle;	/*  host rport handle		*/
542 	u8		status;		/*  rport deletion status	*/
543 	u8		rsvd;
544 };
545 
546 struct bfi_rport_qos_scn_s {
547 	struct bfi_mhdr_s  mh;		/*  common msg header		*/
548 	u16	bfa_handle;	/*  host rport handle		*/
549 	u16	rsvd;
550 	struct bfa_rport_qos_attr_s old_qos_attr;  /* Old QoS Attributes */
551 	struct bfa_rport_qos_attr_s new_qos_attr;  /* New QoS Attributes */
552 };
553 
554 union bfi_rport_h2i_msg_u {
555 	struct bfi_msg_s		*msg;
556 	struct bfi_rport_create_req_s	*create_req;
557 	struct bfi_rport_delete_req_s	*delete_req;
558 	struct bfi_rport_speed_req_s	*speed_req;
559 };
560 
561 union bfi_rport_i2h_msg_u {
562 	struct bfi_msg_s		*msg;
563 	struct bfi_rport_create_rsp_s	*create_rsp;
564 	struct bfi_rport_delete_rsp_s	*delete_rsp;
565 	struct bfi_rport_qos_scn_s	*qos_scn_evt;
566 };
567 
568 /*
569  * Initiator mode I-T nexus interface defines.
570  */
571 
572 enum bfi_itn_h2i {
573 	BFI_ITN_H2I_CREATE_REQ = 1,	/*  i-t nexus creation */
574 	BFI_ITN_H2I_DELETE_REQ = 2,	/*  i-t nexus deletion */
575 };
576 
577 enum bfi_itn_i2h {
578 	BFI_ITN_I2H_CREATE_RSP = BFA_I2HM(1),
579 	BFI_ITN_I2H_DELETE_RSP = BFA_I2HM(2),
580 	BFI_ITN_I2H_SLER_EVENT = BFA_I2HM(3),
581 };
582 
583 struct bfi_itn_create_req_s {
584 	struct bfi_mhdr_s  mh;		/*  common msg header		 */
585 	u16	fw_handle;	/*  f/w handle for itnim	 */
586 	u8	class;		/*  FC class for IO		 */
587 	u8	seq_rec;	/*  sequence recovery support	 */
588 	u8	msg_no;		/*  seq id of the msg		 */
589 	u8	role;
590 };
591 
592 struct bfi_itn_create_rsp_s {
593 	struct bfi_mhdr_s  mh;		/*  common msg header		 */
594 	u16	bfa_handle;	/*  bfa handle for itnim	 */
595 	u8	status;		/*  fcp request status		 */
596 	u8	seq_id;		/*  seq id of the msg		 */
597 };
598 
599 struct bfi_itn_delete_req_s {
600 	struct bfi_mhdr_s  mh;		/*  common msg header		 */
601 	u16	fw_handle;	/*  f/w itnim handle		 */
602 	u8	seq_id;		/*  seq id of the msg		 */
603 	u8	rsvd;
604 };
605 
606 struct bfi_itn_delete_rsp_s {
607 	struct bfi_mhdr_s  mh;		/*  common msg header		 */
608 	u16	bfa_handle;	/*  bfa handle for itnim	 */
609 	u8	status;		/*  fcp request status		 */
610 	u8	seq_id;		/*  seq id of the msg		 */
611 };
612 
613 struct bfi_itn_sler_event_s {
614 	struct bfi_mhdr_s  mh;		/*  common msg header		 */
615 	u16	bfa_handle;	/*  bfa handle for itnim	 */
616 	u16	rsvd;
617 };
618 
619 union bfi_itn_h2i_msg_u {
620 	struct bfi_itn_create_req_s *create_req;
621 	struct bfi_itn_delete_req_s *delete_req;
622 	struct bfi_msg_s	*msg;
623 };
624 
625 union bfi_itn_i2h_msg_u {
626 	struct bfi_itn_create_rsp_s *create_rsp;
627 	struct bfi_itn_delete_rsp_s *delete_rsp;
628 	struct bfi_itn_sler_event_s *sler_event;
629 	struct bfi_msg_s	*msg;
630 };
631 
632 /*
633  * Initiator mode IO interface defines.
634  */
635 
636 enum bfi_ioim_h2i {
637 	BFI_IOIM_H2I_IOABORT_REQ = 1,	/*  IO abort request	 */
638 	BFI_IOIM_H2I_IOCLEANUP_REQ = 2,	/*  IO cleanup request	 */
639 };
640 
641 enum bfi_ioim_i2h {
642 	BFI_IOIM_I2H_IO_RSP = BFA_I2HM(1),	/*  non-fp IO response	 */
643 	BFI_IOIM_I2H_IOABORT_RSP = BFA_I2HM(2),	/*  ABORT rsp	 */
644 };
645 
646 /*
647  * IO command DIF info
648  */
649 struct bfi_ioim_dif_s {
650 	u32	dif_info[4];
651 };
652 
653 /*
654  * FCP IO messages overview
655  *
656  * @note
657  * - Max CDB length supported is 64 bytes.
658  * - SCSI Linked commands and SCSI bi-directional Commands not
659  *	supported.
660  *
661  */
662 struct bfi_ioim_req_s {
663 	struct bfi_mhdr_s  mh;		/*  Common msg header		 */
664 	__be16	io_tag;		/*  I/O tag			 */
665 	u16	rport_hdl;	/*  itnim/rport firmware handle */
666 	struct fcp_cmnd_s	cmnd;	/*  IO request info	*/
667 
668 	/*
669 	 * SG elements array within the IO request must be double word
670 	 * aligned. This aligment is required to optimize SGM setup for the IO.
671 	 */
672 	struct bfi_sge_s	sges[BFI_SGE_INLINE_MAX];
673 	u8	io_timeout;
674 	u8	dif_en;
675 	u8	rsvd_a[2];
676 	struct bfi_ioim_dif_s  dif;
677 };
678 
679 /*
680  *	This table shows various IO status codes from firmware and their
681  *	meaning. Host driver can use these status codes to further process
682  *	IO completions.
683  *
684  *	BFI_IOIM_STS_OK		: IO completed with error free SCSI &
685  *					transport status.
686  *					 io-tag can be reused.
687  *
688  *	BFA_IOIM_STS_SCSI_ERR		: IO completed with scsi error.
689  *	- io-tag can be reused.
690  *
691  *	BFI_IOIM_STS_HOST_ABORTED	: IO was aborted successfully due to
692  *						host request.
693  *					- io-tag cannot be reused yet.
694  *
695  *	BFI_IOIM_STS_ABORTED		: IO was aborted successfully
696  *						internally by f/w.
697  *					- io-tag cannot be reused yet.
698  *
699  *	BFI_IOIM_STS_TIMEDOUT	: IO timedout and ABTS/RRQ is happening
700  *					in the firmware and
701  *					- io-tag cannot be reused yet.
702  *
703  *	BFI_IOIM_STS_SQER_NEEDED	: Firmware could not recover the IO
704  *					  with sequence level error
705  *	logic and hence host needs to retry
706  *					  this IO with a different IO tag
707  *					- io-tag cannot be used yet.
708  *
709  *	BFI_IOIM_STS_NEXUS_ABORT	: Second Level Error Recovery from host
710  *					  is required because 2 consecutive ABTS
711  *					  timedout and host needs logout and
712  *					  re-login with the target
713  *					- io-tag cannot be used yet.
714  *
715  *	BFI_IOIM_STS_UNDERRUN	: IO completed with SCSI status good,
716  *					  but the data tranferred is less than
717  *					  the fcp data length in the command.
718  *					  ex. SCSI INQUIRY where transferred
719  *					  data length and residue count in FCP
720  *					  response accounts for total fcp-dl
721  *					  - io-tag can be reused.
722  *
723  *	BFI_IOIM_STS_OVERRUN	: IO completed with SCSI status good,
724  *					  but the data transerred is more than
725  *					  fcp data length in the command. ex.
726  *					  TAPE IOs where blocks can of unequal
727  *					  lengths.
728  *					- io-tag can be reused.
729  *
730  *	BFI_IOIM_STS_RES_FREE	: Firmware has completed using io-tag
731  *					  during abort process
732  *					- io-tag can be reused.
733  *
734  *	BFI_IOIM_STS_PROTO_ERR	: Firmware detected a protocol error.
735  *					  ex target sent more data than
736  *					  requested, or there was data frame
737  *					  loss and other reasons
738  *					- io-tag cannot be used yet.
739  *
740  *	BFI_IOIM_STS_DIF_ERR	: Firwmare detected DIF error. ex: DIF
741  *					CRC err or Ref Tag err or App tag err.
742  *					- io-tag can be reused.
743  *
744  *	BFA_IOIM_STS_TSK_MGT_ABORT	: IO was aborted because of Task
745  *					  Management command from the host
746  *					  - io-tag can be reused.
747  *
748  *	BFI_IOIM_STS_UTAG		: Firmware does not know about this
749  *					  io_tag.
750  *					- io-tag can be reused.
751  */
752 enum bfi_ioim_status {
753 	BFI_IOIM_STS_OK = 0,
754 	BFI_IOIM_STS_HOST_ABORTED = 1,
755 	BFI_IOIM_STS_ABORTED = 2,
756 	BFI_IOIM_STS_TIMEDOUT = 3,
757 	BFI_IOIM_STS_RES_FREE = 4,
758 	BFI_IOIM_STS_SQER_NEEDED = 5,
759 	BFI_IOIM_STS_PROTO_ERR = 6,
760 	BFI_IOIM_STS_UTAG = 7,
761 	BFI_IOIM_STS_PATHTOV = 8,
762 };
763 
764 /*
765  * I/O response message
766  */
767 struct bfi_ioim_rsp_s {
768 	struct bfi_mhdr_s	mh;	/*  common msg header		*/
769 	__be16	io_tag;		/*  completed IO tag		 */
770 	u16	bfa_rport_hndl;	/*  releated rport handle	 */
771 	u8	io_status;	/*  IO completion status	 */
772 	u8	reuse_io_tag;	/*  IO tag can be reused	*/
773 	u16	abort_tag;	/*  host abort request tag	*/
774 	u8		scsi_status;	/*  scsi status from target	 */
775 	u8		sns_len;	/*  scsi sense length		 */
776 	u8		resid_flags;	/*  IO residue flags		 */
777 	u8		rsvd_a;
778 	__be32	residue;	/*  IO residual length in bytes */
779 	u32	rsvd_b[3];
780 };
781 
782 struct bfi_ioim_abort_req_s {
783 	struct bfi_mhdr_s  mh;	/*  Common msg header  */
784 	__be16	io_tag;	/*  I/O tag	*/
785 	u16	abort_tag;	/*  unique request tag */
786 };
787 
788 /*
789  * Initiator mode task management command interface defines.
790  */
791 
792 enum bfi_tskim_h2i {
793 	BFI_TSKIM_H2I_TM_REQ	= 1, /*  task-mgmt command	*/
794 	BFI_TSKIM_H2I_ABORT_REQ = 2, /*  task-mgmt command	*/
795 };
796 
797 enum bfi_tskim_i2h {
798 	BFI_TSKIM_I2H_TM_RSP = BFA_I2HM(1),
799 };
800 
801 struct bfi_tskim_req_s {
802 	struct bfi_mhdr_s  mh;	/*  Common msg header	*/
803 	__be16	tsk_tag;	/*  task management tag	*/
804 	u16	itn_fhdl;	/*  itn firmware handle	*/
805 	struct 	scsi_lun lun;	/*  LU number	*/
806 	u8	tm_flags;	/*  see enum fcp_tm_cmnd	*/
807 	u8	t_secs;	/*  Timeout value in seconds	*/
808 	u8	rsvd[2];
809 };
810 
811 struct bfi_tskim_abortreq_s {
812 	struct bfi_mhdr_s  mh;	/*  Common msg header	*/
813 	__be16	tsk_tag;	/*  task management tag	*/
814 	u16	rsvd;
815 };
816 
817 enum bfi_tskim_status {
818 	/*
819 	 * Following are FCP-4 spec defined status codes,
820 	 * **DO NOT CHANGE THEM **
821 	 */
822 	BFI_TSKIM_STS_OK	= 0,
823 	BFI_TSKIM_STS_NOT_SUPP = 4,
824 	BFI_TSKIM_STS_FAILED	= 5,
825 
826 	/*
827 	 * Defined by BFA
828 	 */
829 	BFI_TSKIM_STS_TIMEOUT  = 10,	/*  TM request timedout	*/
830 	BFI_TSKIM_STS_ABORTED  = 11,	/*  Aborted on host request */
831 };
832 
833 struct bfi_tskim_rsp_s {
834 	struct bfi_mhdr_s  mh;		/*  Common msg header		 */
835 	__be16	tsk_tag;	/*  task mgmt cmnd tag		 */
836 	u8	tsk_status;	/*  @ref bfi_tskim_status */
837 	u8	rsvd;
838 };
839 
840 #pragma pack()
841 
842 /*
843  * Crossbow PCI MSI-X vector defines
844  */
845 enum {
846 	BFI_MSIX_CPE_QMIN_CB = 0,
847 	BFI_MSIX_CPE_QMAX_CB = 7,
848 	BFI_MSIX_RME_QMIN_CB = 8,
849 	BFI_MSIX_RME_QMAX_CB = 15,
850 	BFI_MSIX_CB_MAX = 22,
851 };
852 
853 /*
854  * Catapult FC PCI MSI-X vector defines
855  */
856 enum {
857 	BFI_MSIX_LPU_ERR_CT = 0,
858 	BFI_MSIX_CPE_QMIN_CT = 1,
859 	BFI_MSIX_CPE_QMAX_CT = 4,
860 	BFI_MSIX_RME_QMIN_CT = 5,
861 	BFI_MSIX_RME_QMAX_CT = 8,
862 	BFI_MSIX_CT_MAX = 9,
863 };
864 
865 #endif /* __BFI_MS_H__ */
866