xref: /linux/drivers/scsi/bfa/bfa_svc.h (revision 26b0d14106954ae46d2f4f7eec3481828a210f7d)
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 __BFA_SVC_H__
19 #define __BFA_SVC_H__
20 
21 #include "bfa_cs.h"
22 #include "bfi_ms.h"
23 
24 
25 /*
26  * Scatter-gather DMA related defines
27  */
28 #define BFA_SGPG_MIN	(16)
29 #define BFA_SGPG_MAX	(8192)
30 
31 /*
32  * Alignment macro for SG page allocation
33  */
34 #define BFA_SGPG_ROUNDUP(_l) (((_l) + (sizeof(struct bfi_sgpg_s) - 1))	\
35 			      & ~(sizeof(struct bfi_sgpg_s) - 1))
36 
37 struct bfa_sgpg_wqe_s {
38 	struct list_head qe;	/*  queue sg page element	*/
39 	int	nsgpg;		/*  pages to be allocated	*/
40 	int	nsgpg_total;	/*  total pages required	*/
41 	void	(*cbfn) (void *cbarg);	/*  callback function	*/
42 	void	*cbarg;		/*  callback arg		*/
43 	struct list_head sgpg_q;	/*  queue of alloced sgpgs	*/
44 };
45 
46 struct bfa_sgpg_s {
47 	struct list_head  qe;	/*  queue sg page element	*/
48 	struct bfi_sgpg_s *sgpg;	/*  va of SG page		*/
49 	union bfi_addr_u sgpg_pa;	/*  pa of SG page		*/
50 };
51 
52 /*
53  * Given number of SG elements, BFA_SGPG_NPAGE() returns the number of
54  * SG pages required.
55  */
56 #define BFA_SGPG_NPAGE(_nsges)  (((_nsges) / BFI_SGPG_DATA_SGES) + 1)
57 
58 /* Max SGPG dma segs required */
59 #define BFA_SGPG_DMA_SEGS	\
60 	BFI_MEM_DMA_NSEGS(BFA_SGPG_MAX, (uint32_t)sizeof(struct bfi_sgpg_s))
61 
62 struct bfa_sgpg_mod_s {
63 	struct bfa_s *bfa;
64 	int		num_sgpgs;	/*  number of SG pages		*/
65 	int		free_sgpgs;	/*  number of free SG pages	*/
66 	struct list_head	sgpg_q;		/*  queue of free SG pages */
67 	struct list_head	sgpg_wait_q;	/*  wait queue for SG pages */
68 	struct bfa_mem_dma_s	dma_seg[BFA_SGPG_DMA_SEGS];
69 	struct bfa_mem_kva_s	kva_seg;
70 };
71 #define BFA_SGPG_MOD(__bfa)	(&(__bfa)->modules.sgpg_mod)
72 #define BFA_MEM_SGPG_KVA(__bfa) (&(BFA_SGPG_MOD(__bfa)->kva_seg))
73 
74 bfa_status_t bfa_sgpg_malloc(struct bfa_s *bfa, struct list_head *sgpg_q,
75 			     int nsgpgs);
76 void bfa_sgpg_mfree(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpgs);
77 void bfa_sgpg_winit(struct bfa_sgpg_wqe_s *wqe,
78 		    void (*cbfn) (void *cbarg), void *cbarg);
79 void bfa_sgpg_wait(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe, int nsgpgs);
80 void bfa_sgpg_wcancel(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe);
81 
82 
83 /*
84  * FCXP related defines
85  */
86 #define BFA_FCXP_MIN		(1)
87 #define BFA_FCXP_MAX		(256)
88 #define BFA_FCXP_MAX_IBUF_SZ	(2 * 1024 + 256)
89 #define BFA_FCXP_MAX_LBUF_SZ	(4 * 1024 + 256)
90 
91 /* Max FCXP dma segs required */
92 #define BFA_FCXP_DMA_SEGS						\
93 	BFI_MEM_DMA_NSEGS(BFA_FCXP_MAX,					\
94 		(u32)BFA_FCXP_MAX_IBUF_SZ + BFA_FCXP_MAX_LBUF_SZ)
95 
96 struct bfa_fcxp_mod_s {
97 	struct bfa_s      *bfa;		/* backpointer to BFA */
98 	struct bfa_fcxp_s *fcxp_list;	/* array of FCXPs */
99 	u16	num_fcxps;	/* max num FCXP requests */
100 	struct list_head  fcxp_free_q;	/* free FCXPs */
101 	struct list_head  fcxp_active_q;	/* active FCXPs */
102 	struct list_head  wait_q;		/* wait queue for free fcxp */
103 	struct list_head fcxp_unused_q; /* unused fcxps */
104 	u32	req_pld_sz;
105 	u32	rsp_pld_sz;
106 	struct bfa_mem_dma_s dma_seg[BFA_FCXP_DMA_SEGS];
107 	struct bfa_mem_kva_s kva_seg;
108 };
109 
110 #define BFA_FCXP_MOD(__bfa)		(&(__bfa)->modules.fcxp_mod)
111 #define BFA_FCXP_FROM_TAG(__mod, __tag)	(&(__mod)->fcxp_list[__tag])
112 #define BFA_MEM_FCXP_KVA(__bfa) (&(BFA_FCXP_MOD(__bfa)->kva_seg))
113 
114 typedef void    (*fcxp_send_cb_t) (struct bfa_s *ioc, struct bfa_fcxp_s *fcxp,
115 				   void *cb_arg, bfa_status_t req_status,
116 				   u32 rsp_len, u32 resid_len,
117 				   struct fchs_s *rsp_fchs);
118 
119 typedef u64 (*bfa_fcxp_get_sgaddr_t) (void *bfad_fcxp, int sgeid);
120 typedef u32 (*bfa_fcxp_get_sglen_t) (void *bfad_fcxp, int sgeid);
121 typedef void (*bfa_cb_fcxp_send_t) (void *bfad_fcxp, struct bfa_fcxp_s *fcxp,
122 				    void *cbarg, enum bfa_status req_status,
123 				    u32 rsp_len, u32 resid_len,
124 				    struct fchs_s *rsp_fchs);
125 typedef void (*bfa_fcxp_alloc_cbfn_t) (void *cbarg, struct bfa_fcxp_s *fcxp);
126 
127 
128 
129 /*
130  * Information needed for a FCXP request
131  */
132 struct bfa_fcxp_req_info_s {
133 	struct bfa_rport_s *bfa_rport;
134 					/* Pointer to the bfa rport that was
135 					 * returned from bfa_rport_create().
136 					 * This could be left NULL for WKA or
137 					 * for FCXP interactions before the
138 					 * rport nexus is established
139 					 */
140 	struct fchs_s	fchs;	/*  request FC header structure */
141 	u8		cts;	/*  continuous sequence */
142 	u8		class;	/*  FC class for the request/response */
143 	u16	max_frmsz;	/*  max send frame size */
144 	u16	vf_id;	/*  vsan tag if applicable */
145 	u8		lp_tag;	/*  lport tag */
146 	u32	req_tot_len;	/*  request payload total length */
147 };
148 
149 struct bfa_fcxp_rsp_info_s {
150 	struct fchs_s	rsp_fchs;
151 				/* Response frame's FC header will
152 				 * be sent back in this field */
153 	u8		rsp_timeout;
154 				/* timeout in seconds, 0-no response */
155 	u8		rsvd2[3];
156 	u32	rsp_maxlen;	/*  max response length expected */
157 };
158 
159 struct bfa_fcxp_s {
160 	struct list_head	qe;		/*  fcxp queue element */
161 	bfa_sm_t	sm;		/*  state machine */
162 	void		*caller;	/*  driver or fcs */
163 	struct bfa_fcxp_mod_s *fcxp_mod;
164 	/*  back pointer to fcxp mod */
165 	u16	fcxp_tag;	/*  internal tag */
166 	struct bfa_fcxp_req_info_s req_info;
167 	/*  request info */
168 	struct bfa_fcxp_rsp_info_s rsp_info;
169 	/*  response info */
170 	u8	use_ireqbuf;	/*  use internal req buf */
171 	u8		use_irspbuf;	/*  use internal rsp buf */
172 	u32	nreq_sgles;	/*  num request SGLEs */
173 	u32	nrsp_sgles;	/*  num response SGLEs */
174 	struct list_head req_sgpg_q;	/*  SG pages for request buf */
175 	struct list_head req_sgpg_wqe;	/*  wait queue for req SG page */
176 	struct list_head rsp_sgpg_q;	/*  SG pages for response buf */
177 	struct list_head rsp_sgpg_wqe;	/*  wait queue for rsp SG page */
178 
179 	bfa_fcxp_get_sgaddr_t req_sga_cbfn;
180 	/*  SG elem addr user function */
181 	bfa_fcxp_get_sglen_t req_sglen_cbfn;
182 	/*  SG elem len user function */
183 	bfa_fcxp_get_sgaddr_t rsp_sga_cbfn;
184 	/*  SG elem addr user function */
185 	bfa_fcxp_get_sglen_t rsp_sglen_cbfn;
186 	/*  SG elem len user function */
187 	bfa_cb_fcxp_send_t send_cbfn;   /*  send completion callback */
188 	void		*send_cbarg;	/*  callback arg */
189 	struct bfa_sge_s   req_sge[BFA_FCXP_MAX_SGES];
190 	/*  req SG elems */
191 	struct bfa_sge_s   rsp_sge[BFA_FCXP_MAX_SGES];
192 	/*  rsp SG elems */
193 	u8		rsp_status;	/*  comp: rsp status */
194 	u32	rsp_len;	/*  comp: actual response len */
195 	u32	residue_len;	/*  comp: residual rsp length */
196 	struct fchs_s	rsp_fchs;	/*  comp: response fchs */
197 	struct bfa_cb_qe_s    hcb_qe;	/*  comp: callback qelem */
198 	struct bfa_reqq_wait_s	reqq_wqe;
199 	bfa_boolean_t	reqq_waiting;
200 };
201 
202 struct bfa_fcxp_wqe_s {
203 	struct list_head		qe;
204 	bfa_fcxp_alloc_cbfn_t	alloc_cbfn;
205 	void		*alloc_cbarg;
206 	void		*caller;
207 	struct bfa_s	*bfa;
208 	int		nreq_sgles;
209 	int		nrsp_sgles;
210 	bfa_fcxp_get_sgaddr_t	req_sga_cbfn;
211 	bfa_fcxp_get_sglen_t	req_sglen_cbfn;
212 	bfa_fcxp_get_sgaddr_t	rsp_sga_cbfn;
213 	bfa_fcxp_get_sglen_t	rsp_sglen_cbfn;
214 };
215 
216 #define BFA_FCXP_REQ_PLD(_fcxp)		(bfa_fcxp_get_reqbuf(_fcxp))
217 #define BFA_FCXP_RSP_FCHS(_fcxp)	(&((_fcxp)->rsp_info.fchs))
218 #define BFA_FCXP_RSP_PLD(_fcxp)		(bfa_fcxp_get_rspbuf(_fcxp))
219 
220 #define BFA_FCXP_REQ_PLD_PA(_fcxp)					      \
221 	bfa_mem_get_dmabuf_pa((_fcxp)->fcxp_mod, (_fcxp)->fcxp_tag,	      \
222 		(_fcxp)->fcxp_mod->req_pld_sz + (_fcxp)->fcxp_mod->rsp_pld_sz)
223 
224 /* fcxp_buf = req_buf + rsp_buf :- add req_buf_sz to get to rsp_buf */
225 #define BFA_FCXP_RSP_PLD_PA(_fcxp)					       \
226 	(bfa_mem_get_dmabuf_pa((_fcxp)->fcxp_mod, (_fcxp)->fcxp_tag,	       \
227 	      (_fcxp)->fcxp_mod->req_pld_sz + (_fcxp)->fcxp_mod->rsp_pld_sz) + \
228 	      (_fcxp)->fcxp_mod->req_pld_sz)
229 
230 void	bfa_fcxp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
231 
232 
233 /*
234  * RPORT related defines
235  */
236 enum bfa_rport_event {
237 	BFA_RPORT_SM_CREATE	= 1,	/*  rport create event          */
238 	BFA_RPORT_SM_DELETE	= 2,	/*  deleting an existing rport  */
239 	BFA_RPORT_SM_ONLINE	= 3,	/*  rport is online             */
240 	BFA_RPORT_SM_OFFLINE	= 4,	/*  rport is offline            */
241 	BFA_RPORT_SM_FWRSP	= 5,	/*  firmware response           */
242 	BFA_RPORT_SM_HWFAIL	= 6,	/*  IOC h/w failure             */
243 	BFA_RPORT_SM_QOS_SCN	= 7,	/*  QoS SCN from firmware       */
244 	BFA_RPORT_SM_SET_SPEED	= 8,	/*  Set Rport Speed             */
245 	BFA_RPORT_SM_QRESUME	= 9,	/*  space in requeue queue      */
246 };
247 
248 #define BFA_RPORT_MIN	4
249 
250 struct bfa_rport_mod_s {
251 	struct bfa_rport_s *rps_list;	/*  list of rports	*/
252 	struct list_head	rp_free_q;	/*  free bfa_rports	*/
253 	struct list_head	rp_active_q;	/*  free bfa_rports	*/
254 	struct list_head	rp_unused_q;	/*  unused bfa rports  */
255 	u16	num_rports;	/*  number of rports	*/
256 	struct bfa_mem_kva_s	kva_seg;
257 };
258 
259 #define BFA_RPORT_MOD(__bfa)	(&(__bfa)->modules.rport_mod)
260 #define BFA_MEM_RPORT_KVA(__bfa) (&(BFA_RPORT_MOD(__bfa)->kva_seg))
261 
262 /*
263  * Convert rport tag to RPORT
264  */
265 #define BFA_RPORT_FROM_TAG(__bfa, _tag)				\
266 	(BFA_RPORT_MOD(__bfa)->rps_list +			\
267 	 ((_tag) & (BFA_RPORT_MOD(__bfa)->num_rports - 1)))
268 
269 /*
270  * protected functions
271  */
272 void	bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
273 void	bfa_rport_res_recfg(struct bfa_s *bfa, u16 num_rport_fw);
274 
275 /*
276  *	BFA rport information.
277  */
278 struct bfa_rport_info_s {
279 	u16	max_frmsz;	/*  max rcv pdu size		    */
280 	u32	pid:24,	/*  remote port ID		    */
281 		lp_tag:8;	/*  tag			    */
282 	u32	local_pid:24,	/*  local port ID		    */
283 		cisc:8;	/*  CIRO supported		    */
284 	u8	fc_class;	/*  supported FC classes. enum fc_cos */
285 	u8	vf_en;		/*  virtual fabric enable	    */
286 	u16	vf_id;		/*  virtual fabric ID		    */
287 	enum bfa_port_speed speed;	/*  Rport's current speed	    */
288 };
289 
290 /*
291  * BFA rport data structure
292  */
293 struct bfa_rport_s {
294 	struct list_head	qe;	/*  queue element		    */
295 	bfa_sm_t	sm;		/*  state machine		    */
296 	struct bfa_s	*bfa;		/*  backpointer to BFA		    */
297 	void		*rport_drv;	/*  fcs/driver rport object	    */
298 	u16	fw_handle;	/*  firmware rport handle	    */
299 	u16	rport_tag;	/*  BFA rport tag		    */
300 	u8	lun_mask;	/*  LUN mask flag		    */
301 	struct bfa_rport_info_s rport_info; /*  rport info from fcs/driver */
302 	struct bfa_reqq_wait_s reqq_wait; /*  to wait for room in reqq     */
303 	struct bfa_cb_qe_s hcb_qe;	/*  BFA callback qelem		    */
304 	struct bfa_rport_hal_stats_s stats; /*  BFA rport statistics	    */
305 	struct bfa_rport_qos_attr_s qos_attr;
306 	union a {
307 		bfa_status_t	status;	/*  f/w status */
308 		void		*fw_msg; /*  QoS scn event		    */
309 	} event_arg;
310 };
311 #define BFA_RPORT_FC_COS(_rport)	((_rport)->rport_info.fc_class)
312 
313 
314 /*
315  * UF - unsolicited receive related defines
316  */
317 
318 #define BFA_UF_MIN	(4)
319 #define BFA_UF_MAX	(256)
320 
321 struct bfa_uf_s {
322 	struct list_head	qe;	/*  queue element		*/
323 	struct bfa_s		*bfa;	/*  bfa instance		*/
324 	u16	uf_tag;		/*  identifying tag fw msgs	*/
325 	u16	vf_id;
326 	u16	src_rport_handle;
327 	u16	rsvd;
328 	u8		*data_ptr;
329 	u16	data_len;	/*  actual receive length	*/
330 	u16	pb_len;		/*  posted buffer length	*/
331 	void		*buf_kva;	/*  buffer virtual address	*/
332 	u64	buf_pa;		/*  buffer physical address	*/
333 	struct bfa_cb_qe_s hcb_qe;	/*  comp: BFA comp qelem	*/
334 	struct bfa_sge_s sges[BFI_SGE_INLINE_MAX];
335 };
336 
337 /*
338  *      Callback prototype for unsolicited frame receive handler.
339  *
340  * @param[in]           cbarg           callback arg for receive handler
341  * @param[in]           uf              unsolicited frame descriptor
342  *
343  * @return None
344  */
345 typedef void (*bfa_cb_uf_recv_t) (void *cbarg, struct bfa_uf_s *uf);
346 
347 #define BFA_UF_BUFSZ	(2 * 1024 + 256)
348 
349 struct bfa_uf_buf_s {
350 	u8	d[BFA_UF_BUFSZ];
351 };
352 
353 #define BFA_PER_UF_DMA_SZ	\
354 	(u32)BFA_ROUNDUP(sizeof(struct bfa_uf_buf_s), BFA_DMA_ALIGN_SZ)
355 
356 /* Max UF dma segs required */
357 #define BFA_UF_DMA_SEGS BFI_MEM_DMA_NSEGS(BFA_UF_MAX, BFA_PER_UF_DMA_SZ)
358 
359 struct bfa_uf_mod_s {
360 	struct bfa_s *bfa;		/*  back pointer to BFA */
361 	struct bfa_uf_s *uf_list;	/*  array of UFs */
362 	u16	num_ufs;	/*  num unsolicited rx frames */
363 	struct list_head	uf_free_q;	/*  free UFs */
364 	struct list_head	uf_posted_q;	/*  UFs posted to IOC */
365 	struct list_head	uf_unused_q;	/*  unused UF's */
366 	struct bfi_uf_buf_post_s *uf_buf_posts;
367 	/*  pre-built UF post msgs */
368 	bfa_cb_uf_recv_t ufrecv;	/*  uf recv handler function */
369 	void		*cbarg;		/*  uf receive handler arg */
370 	struct bfa_mem_dma_s	dma_seg[BFA_UF_DMA_SEGS];
371 	struct bfa_mem_kva_s	kva_seg;
372 };
373 
374 #define BFA_UF_MOD(__bfa)	(&(__bfa)->modules.uf_mod)
375 #define BFA_MEM_UF_KVA(__bfa)	(&(BFA_UF_MOD(__bfa)->kva_seg))
376 
377 #define ufm_pbs_pa(_ufmod, _uftag)					\
378 	bfa_mem_get_dmabuf_pa(_ufmod, _uftag, BFA_PER_UF_DMA_SZ)
379 
380 void	bfa_uf_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
381 void	bfa_uf_res_recfg(struct bfa_s *bfa, u16 num_uf_fw);
382 
383 /*
384  * LPS - bfa lport login/logout service interface
385  */
386 struct bfa_lps_s {
387 	struct list_head	qe;	/*  queue element		*/
388 	struct bfa_s	*bfa;		/*  parent bfa instance	*/
389 	bfa_sm_t	sm;		/*  finite state machine	*/
390 	u8		bfa_tag;	/*  lport tag		*/
391 	u8		fw_tag;		/*  lport fw tag                */
392 	u8		reqq;		/*  lport request queue	*/
393 	u8		alpa;		/*  ALPA for loop topologies	*/
394 	u32	lp_pid;		/*  lport port ID		*/
395 	bfa_boolean_t	fdisc;		/*  snd FDISC instead of FLOGI	*/
396 	bfa_boolean_t	auth_en;	/*  enable authentication	*/
397 	bfa_boolean_t	auth_req;	/*  authentication required	*/
398 	bfa_boolean_t	npiv_en;	/*  NPIV is allowed by peer	*/
399 	bfa_boolean_t	fport;		/*  attached peer is F_PORT	*/
400 	bfa_boolean_t	brcd_switch;	/*  attached peer is brcd sw	*/
401 	bfa_status_t	status;		/*  login status		*/
402 	u16		pdusz;		/*  max receive PDU size	*/
403 	u16		pr_bbcred;	/*  BB_CREDIT from peer		*/
404 	u8		pr_bbscn;	/*  BB_SCN from peer		*/
405 	u8		bb_scn;		/*  local BB_SCN		*/
406 	u8		lsrjt_rsn;	/*  LSRJT reason		*/
407 	u8		lsrjt_expl;	/*  LSRJT explanation		*/
408 	u8		lun_mask;	/*  LUN mask flag		*/
409 	wwn_t		pwwn;		/*  port wwn of lport		*/
410 	wwn_t		nwwn;		/*  node wwn of lport		*/
411 	wwn_t		pr_pwwn;	/*  port wwn of lport peer	*/
412 	wwn_t		pr_nwwn;	/*  node wwn of lport peer	*/
413 	mac_t		lp_mac;		/*  fpma/spma MAC for lport	*/
414 	mac_t		fcf_mac;	/*  FCF MAC of lport		*/
415 	struct bfa_reqq_wait_s	wqe;	/*  request wait queue element	*/
416 	void		*uarg;		/*  user callback arg		*/
417 	struct bfa_cb_qe_s hcb_qe;	/*  comp: callback qelem	*/
418 	struct bfi_lps_login_rsp_s *loginrsp;
419 	bfa_eproto_status_t ext_status;
420 };
421 
422 struct bfa_lps_mod_s {
423 	struct list_head		lps_free_q;
424 	struct list_head		lps_active_q;
425 	struct list_head		lps_login_q;
426 	struct bfa_lps_s	*lps_arr;
427 	int			num_lps;
428 	struct bfa_mem_kva_s	kva_seg;
429 };
430 
431 #define BFA_LPS_MOD(__bfa)		(&(__bfa)->modules.lps_mod)
432 #define BFA_LPS_FROM_TAG(__mod, __tag)	(&(__mod)->lps_arr[__tag])
433 #define BFA_MEM_LPS_KVA(__bfa)	(&(BFA_LPS_MOD(__bfa)->kva_seg))
434 
435 /*
436  * external functions
437  */
438 void	bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
439 
440 
441 /*
442  * FCPORT related defines
443  */
444 
445 #define BFA_FCPORT(_bfa)	(&((_bfa)->modules.port))
446 
447 /*
448  * Link notification data structure
449  */
450 struct bfa_fcport_ln_s {
451 	struct bfa_fcport_s	*fcport;
452 	bfa_sm_t		sm;
453 	struct bfa_cb_qe_s	ln_qe;	/*  BFA callback queue elem for ln */
454 	enum bfa_port_linkstate ln_event; /*  ln event for callback */
455 };
456 
457 struct bfa_fcport_trunk_s {
458 	struct bfa_trunk_attr_s	attr;
459 };
460 
461 /*
462  * BFA FC port data structure
463  */
464 struct bfa_fcport_s {
465 	struct bfa_s		*bfa;	/*  parent BFA instance */
466 	bfa_sm_t		sm;	/*  port state machine */
467 	wwn_t			nwwn;	/*  node wwn of physical port */
468 	wwn_t			pwwn;	/*  port wwn of physical oprt */
469 	enum bfa_port_speed speed_sup;
470 	/*  supported speeds */
471 	enum bfa_port_speed speed;	/*  current speed */
472 	enum bfa_port_topology topology;	/*  current topology */
473 	u8			myalpa;	/*  my ALPA in LOOP topology */
474 	u8			rsvd[3];
475 	struct bfa_port_cfg_s	cfg;	/*  current port configuration */
476 	bfa_boolean_t		use_flash_cfg; /* get port cfg from flash */
477 	struct bfa_qos_attr_s  qos_attr;   /* QoS Attributes */
478 	struct bfa_qos_vc_attr_s qos_vc_attr;  /*  VC info from ELP */
479 	struct bfa_reqq_wait_s	reqq_wait;
480 	/*  to wait for room in reqq */
481 	struct bfa_reqq_wait_s	svcreq_wait;
482 	/*  to wait for room in reqq */
483 	struct bfa_reqq_wait_s	stats_reqq_wait;
484 	/*  to wait for room in reqq (stats) */
485 	void			*event_cbarg;
486 	void			(*event_cbfn) (void *cbarg,
487 					       enum bfa_port_linkstate event);
488 	union {
489 		union bfi_fcport_i2h_msg_u i2hmsg;
490 	} event_arg;
491 	void			*bfad;	/*  BFA driver handle */
492 	struct bfa_fcport_ln_s	ln; /*  Link Notification */
493 	struct bfa_cb_qe_s	hcb_qe;	/*  BFA callback queue elem */
494 	struct bfa_timer_s	timer;	/*  timer */
495 	u32		msgtag;	/*  fimrware msg tag for reply */
496 	u8			*stats_kva;
497 	u64		stats_pa;
498 	union bfa_fcport_stats_u *stats;
499 	bfa_status_t		stats_status; /*  stats/statsclr status */
500 	struct list_head	stats_pending_q;
501 	struct list_head	statsclr_pending_q;
502 	bfa_boolean_t		stats_qfull;
503 	u32		stats_reset_time; /*  stats reset time stamp */
504 	bfa_boolean_t		diag_busy; /*  diag busy status */
505 	bfa_boolean_t		beacon; /*  port beacon status */
506 	bfa_boolean_t		link_e2e_beacon; /*  link beacon status */
507 	bfa_boolean_t		bbsc_op_state;	/* Cred recov Oper State */
508 	struct bfa_fcport_trunk_s trunk;
509 	u16		fcoe_vlan;
510 	struct bfa_mem_dma_s	fcport_dma;
511 };
512 
513 #define BFA_FCPORT_MOD(__bfa)	(&(__bfa)->modules.fcport)
514 #define BFA_MEM_FCPORT_DMA(__bfa) (&(BFA_FCPORT_MOD(__bfa)->fcport_dma))
515 
516 /*
517  * protected functions
518  */
519 void bfa_fcport_init(struct bfa_s *bfa);
520 void bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
521 
522 /*
523  * bfa fcport API functions
524  */
525 bfa_status_t bfa_fcport_enable(struct bfa_s *bfa);
526 bfa_status_t bfa_fcport_disable(struct bfa_s *bfa);
527 bfa_status_t bfa_fcport_cfg_speed(struct bfa_s *bfa,
528 				  enum bfa_port_speed speed);
529 enum bfa_port_speed bfa_fcport_get_speed(struct bfa_s *bfa);
530 bfa_status_t bfa_fcport_cfg_topology(struct bfa_s *bfa,
531 				     enum bfa_port_topology topo);
532 enum bfa_port_topology bfa_fcport_get_topology(struct bfa_s *bfa);
533 bfa_status_t bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa);
534 bfa_boolean_t bfa_fcport_get_hardalpa(struct bfa_s *bfa, u8 *alpa);
535 u8 bfa_fcport_get_myalpa(struct bfa_s *bfa);
536 bfa_status_t bfa_fcport_clr_hardalpa(struct bfa_s *bfa);
537 bfa_status_t bfa_fcport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxsize);
538 u16 bfa_fcport_get_maxfrsize(struct bfa_s *bfa);
539 u8 bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa);
540 void bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_port_attr_s *attr);
541 wwn_t bfa_fcport_get_wwn(struct bfa_s *bfa, bfa_boolean_t node);
542 void bfa_fcport_event_register(struct bfa_s *bfa,
543 			void (*event_cbfn) (void *cbarg,
544 			enum bfa_port_linkstate event), void *event_cbarg);
545 bfa_boolean_t bfa_fcport_is_disabled(struct bfa_s *bfa);
546 enum bfa_port_speed bfa_fcport_get_ratelim_speed(struct bfa_s *bfa);
547 
548 void bfa_fcport_set_tx_bbcredit(struct bfa_s *bfa, u16 tx_bbcredit, u8 bb_scn);
549 bfa_boolean_t     bfa_fcport_is_ratelim(struct bfa_s *bfa);
550 void bfa_fcport_beacon(void *dev, bfa_boolean_t beacon,
551 			bfa_boolean_t link_e2e_beacon);
552 bfa_boolean_t	bfa_fcport_is_linkup(struct bfa_s *bfa);
553 bfa_status_t bfa_fcport_get_stats(struct bfa_s *bfa,
554 			struct bfa_cb_pending_q_s *cb);
555 bfa_status_t bfa_fcport_clear_stats(struct bfa_s *bfa,
556 			struct bfa_cb_pending_q_s *cb);
557 bfa_boolean_t bfa_fcport_is_qos_enabled(struct bfa_s *bfa);
558 bfa_boolean_t bfa_fcport_is_trunk_enabled(struct bfa_s *bfa);
559 bfa_status_t bfa_fcport_is_pbcdisabled(struct bfa_s *bfa);
560 void bfa_fcport_cfg_faa(struct bfa_s *bfa, u8 state);
561 
562 /*
563  * bfa rport API functions
564  */
565 struct bfa_rport_s *bfa_rport_create(struct bfa_s *bfa, void *rport_drv);
566 void bfa_rport_online(struct bfa_rport_s *rport,
567 		      struct bfa_rport_info_s *rport_info);
568 void bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed);
569 void bfa_cb_rport_online(void *rport);
570 void bfa_cb_rport_offline(void *rport);
571 void bfa_cb_rport_qos_scn_flowid(void *rport,
572 				 struct bfa_rport_qos_attr_s old_qos_attr,
573 				 struct bfa_rport_qos_attr_s new_qos_attr);
574 void bfa_cb_rport_qos_scn_prio(void *rport,
575 			       struct bfa_rport_qos_attr_s old_qos_attr,
576 			       struct bfa_rport_qos_attr_s new_qos_attr);
577 
578 /*
579  *	Rport LUN masking related
580  */
581 #define BFA_RPORT_TAG_INVALID	0xffff
582 #define BFA_LP_TAG_INVALID	0xff
583 void	bfa_rport_set_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
584 void	bfa_rport_unset_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
585 
586 /*
587  * bfa fcxp API functions
588  */
589 struct bfa_fcxp_s *bfa_fcxp_alloc(void *bfad_fcxp, struct bfa_s *bfa,
590 				  int nreq_sgles, int nrsp_sgles,
591 				  bfa_fcxp_get_sgaddr_t get_req_sga,
592 				  bfa_fcxp_get_sglen_t get_req_sglen,
593 				  bfa_fcxp_get_sgaddr_t get_rsp_sga,
594 				  bfa_fcxp_get_sglen_t get_rsp_sglen);
595 void bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
596 				bfa_fcxp_alloc_cbfn_t alloc_cbfn,
597 				void *cbarg, void *bfad_fcxp,
598 				int nreq_sgles, int nrsp_sgles,
599 				bfa_fcxp_get_sgaddr_t get_req_sga,
600 				bfa_fcxp_get_sglen_t get_req_sglen,
601 				bfa_fcxp_get_sgaddr_t get_rsp_sga,
602 				bfa_fcxp_get_sglen_t get_rsp_sglen);
603 void bfa_fcxp_walloc_cancel(struct bfa_s *bfa,
604 			    struct bfa_fcxp_wqe_s *wqe);
605 void bfa_fcxp_discard(struct bfa_fcxp_s *fcxp);
606 
607 void *bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp);
608 void *bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp);
609 
610 void bfa_fcxp_free(struct bfa_fcxp_s *fcxp);
611 
612 void bfa_fcxp_send(struct bfa_fcxp_s *fcxp, struct bfa_rport_s *rport,
613 		   u16 vf_id, u8 lp_tag,
614 		   bfa_boolean_t cts, enum fc_cos cos,
615 		   u32 reqlen, struct fchs_s *fchs,
616 		   bfa_cb_fcxp_send_t cbfn,
617 		   void *cbarg,
618 		   u32 rsp_maxlen, u8 rsp_timeout);
619 bfa_status_t bfa_fcxp_abort(struct bfa_fcxp_s *fcxp);
620 u32 bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp);
621 u32 bfa_fcxp_get_maxrsp(struct bfa_s *bfa);
622 void bfa_fcxp_res_recfg(struct bfa_s *bfa, u16 num_fcxp_fw);
623 
624 static inline void *
625 bfa_uf_get_frmbuf(struct bfa_uf_s *uf)
626 {
627 	return uf->data_ptr;
628 }
629 
630 static inline   u16
631 bfa_uf_get_frmlen(struct bfa_uf_s *uf)
632 {
633 	return uf->data_len;
634 }
635 
636 /*
637  * bfa uf API functions
638  */
639 void bfa_uf_recv_register(struct bfa_s *bfa, bfa_cb_uf_recv_t ufrecv,
640 			  void *cbarg);
641 void bfa_uf_free(struct bfa_uf_s *uf);
642 
643 /*
644  * bfa lport service api
645  */
646 
647 u32 bfa_lps_get_max_vport(struct bfa_s *bfa);
648 struct bfa_lps_s *bfa_lps_alloc(struct bfa_s *bfa);
649 void bfa_lps_delete(struct bfa_lps_s *lps);
650 void bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa,
651 		   u16 pdusz, wwn_t pwwn, wwn_t nwwn,
652 		   bfa_boolean_t auth_en, u8 bb_scn);
653 void bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz,
654 		   wwn_t pwwn, wwn_t nwwn);
655 void bfa_lps_fdisclogo(struct bfa_lps_s *lps);
656 void bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, u32 n2n_pid);
657 u8 bfa_lps_get_fwtag(struct bfa_s *bfa, u8 lp_tag);
658 u32 bfa_lps_get_base_pid(struct bfa_s *bfa);
659 u8 bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid);
660 void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status);
661 void bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status);
662 void bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg);
663 void bfa_cb_lps_cvl_event(void *bfad, void *uarg);
664 
665 /* FAA specific APIs */
666 bfa_status_t bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
667 			bfa_cb_iocfc_t cbfn, void *cbarg);
668 
669 /*
670  *	FC DIAG data structure
671  */
672 struct bfa_fcdiag_qtest_s {
673 	struct bfa_diag_qtest_result_s *result;
674 	bfa_cb_diag_t	cbfn;
675 	void		*cbarg;
676 	struct bfa_timer_s	timer;
677 	u32	status;
678 	u32	count;
679 	u8	lock;
680 	u8	queue;
681 	u8	all;
682 	u8	timer_active;
683 };
684 
685 struct bfa_fcdiag_lb_s {
686 	bfa_cb_diag_t   cbfn;
687 	void            *cbarg;
688 	void            *result;
689 	bfa_boolean_t   lock;
690 	u32        status;
691 };
692 
693 struct bfa_fcdiag_s {
694 	struct bfa_s    *bfa;           /* Back pointer to BFA */
695 	struct bfa_trc_mod_s   *trcmod;
696 	struct bfa_fcdiag_lb_s lb;
697 	struct bfa_fcdiag_qtest_s qtest;
698 };
699 
700 #define BFA_FCDIAG_MOD(__bfa)	(&(__bfa)->modules.fcdiag)
701 
702 void	bfa_fcdiag_intr(struct bfa_s *bfa, struct bfi_msg_s *msg);
703 
704 bfa_status_t	bfa_fcdiag_loopback(struct bfa_s *bfa,
705 				enum bfa_port_opmode opmode,
706 				enum bfa_port_speed speed, u32 lpcnt, u32 pat,
707 				struct bfa_diag_loopback_result_s *result,
708 				bfa_cb_diag_t cbfn, void *cbarg);
709 bfa_status_t	bfa_fcdiag_queuetest(struct bfa_s *bfa, u32 ignore,
710 			u32 queue, struct bfa_diag_qtest_result_s *result,
711 			bfa_cb_diag_t cbfn, void *cbarg);
712 bfa_status_t	bfa_fcdiag_lb_is_running(struct bfa_s *bfa);
713 
714 #endif /* __BFA_SVC_H__ */
715