1 /*
2  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
3  * Copyright (c) 2014- QLogic Corporation.
4  * All rights reserved
5  * www.qlogic.com
6  *
7  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU General Public License (GPL) Version 2 as
11  * published by the Free Software Foundation
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * General Public License for more details.
17  */
18 
19 #ifndef __BFA_SVC_H__
20 #define __BFA_SVC_H__
21 
22 #include "bfa_cs.h"
23 #include "bfi_ms.h"
24 
25 
26 /*
27  * Scatter-gather DMA related defines
28  */
29 #define BFA_SGPG_MIN	(16)
30 #define BFA_SGPG_MAX	(8192)
31 
32 /*
33  * Alignment macro for SG page allocation
34  */
35 #define BFA_SGPG_ROUNDUP(_l) (((_l) + (sizeof(struct bfi_sgpg_s) - 1))	\
36 			      & ~(sizeof(struct bfi_sgpg_s) - 1))
37 
38 struct bfa_sgpg_wqe_s {
39 	struct list_head qe;	/*  queue sg page element	*/
40 	int	nsgpg;		/*  pages to be allocated	*/
41 	int	nsgpg_total;	/*  total pages required	*/
42 	void	(*cbfn) (void *cbarg);	/*  callback function	*/
43 	void	*cbarg;		/*  callback arg		*/
44 	struct list_head sgpg_q;	/*  queue of alloced sgpgs	*/
45 };
46 
47 struct bfa_sgpg_s {
48 	struct list_head  qe;	/*  queue sg page element	*/
49 	struct bfi_sgpg_s *sgpg;	/*  va of SG page		*/
50 	union bfi_addr_u sgpg_pa;	/*  pa of SG page		*/
51 };
52 
53 /*
54  * Given number of SG elements, BFA_SGPG_NPAGE() returns the number of
55  * SG pages required.
56  */
57 #define BFA_SGPG_NPAGE(_nsges)  (((_nsges) / BFI_SGPG_DATA_SGES) + 1)
58 
59 /* Max SGPG dma segs required */
60 #define BFA_SGPG_DMA_SEGS	\
61 	BFI_MEM_DMA_NSEGS(BFA_SGPG_MAX, (uint32_t)sizeof(struct bfi_sgpg_s))
62 
63 struct bfa_sgpg_mod_s {
64 	struct bfa_s *bfa;
65 	int		num_sgpgs;	/*  number of SG pages		*/
66 	int		free_sgpgs;	/*  number of free SG pages	*/
67 	struct list_head	sgpg_q;		/*  queue of free SG pages */
68 	struct list_head	sgpg_wait_q;	/*  wait queue for SG pages */
69 	struct bfa_mem_dma_s	dma_seg[BFA_SGPG_DMA_SEGS];
70 	struct bfa_mem_kva_s	kva_seg;
71 };
72 #define BFA_SGPG_MOD(__bfa)	(&(__bfa)->modules.sgpg_mod)
73 #define BFA_MEM_SGPG_KVA(__bfa) (&(BFA_SGPG_MOD(__bfa)->kva_seg))
74 
75 bfa_status_t bfa_sgpg_malloc(struct bfa_s *bfa, struct list_head *sgpg_q,
76 			     int nsgpgs);
77 void bfa_sgpg_mfree(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpgs);
78 void bfa_sgpg_winit(struct bfa_sgpg_wqe_s *wqe,
79 		    void (*cbfn) (void *cbarg), void *cbarg);
80 void bfa_sgpg_wait(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe, int nsgpgs);
81 void bfa_sgpg_wcancel(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe);
82 
83 
84 /*
85  * FCXP related defines
86  */
87 #define BFA_FCXP_MIN		(1)
88 #define BFA_FCXP_MAX		(256)
89 #define BFA_FCXP_MAX_IBUF_SZ	(2 * 1024 + 256)
90 #define BFA_FCXP_MAX_LBUF_SZ	(4 * 1024 + 256)
91 
92 /* Max FCXP dma segs required */
93 #define BFA_FCXP_DMA_SEGS						\
94 	BFI_MEM_DMA_NSEGS(BFA_FCXP_MAX,					\
95 		(u32)BFA_FCXP_MAX_IBUF_SZ + BFA_FCXP_MAX_LBUF_SZ)
96 
97 struct bfa_fcxp_mod_s {
98 	struct bfa_s      *bfa;		/* backpointer to BFA */
99 	struct bfa_fcxp_s *fcxp_list;	/* array of FCXPs */
100 	u16	num_fcxps;	/* max num FCXP requests */
101 	struct list_head fcxp_req_free_q; /* free FCXPs used for sending req */
102 	struct list_head fcxp_rsp_free_q; /* free FCXPs used for sending req */
103 	struct list_head fcxp_active_q;	/* active FCXPs */
104 	struct list_head req_wait_q;	/* wait queue for free req_fcxp */
105 	struct list_head rsp_wait_q;	/* wait queue for free rsp_fcxp */
106 	struct list_head fcxp_req_unused_q;	/* unused req_fcxps */
107 	struct list_head fcxp_rsp_unused_q;	/* unused rsp_fcxps */
108 	u32	req_pld_sz;
109 	u32	rsp_pld_sz;
110 	struct bfa_mem_dma_s dma_seg[BFA_FCXP_DMA_SEGS];
111 	struct bfa_mem_kva_s kva_seg;
112 };
113 
114 #define BFA_FCXP_MOD(__bfa)		(&(__bfa)->modules.fcxp_mod)
115 #define BFA_FCXP_FROM_TAG(__mod, __tag)	(&(__mod)->fcxp_list[__tag])
116 #define BFA_MEM_FCXP_KVA(__bfa) (&(BFA_FCXP_MOD(__bfa)->kva_seg))
117 
118 typedef void    (*fcxp_send_cb_t) (struct bfa_s *ioc, struct bfa_fcxp_s *fcxp,
119 				   void *cb_arg, bfa_status_t req_status,
120 				   u32 rsp_len, u32 resid_len,
121 				   struct fchs_s *rsp_fchs);
122 
123 typedef u64 (*bfa_fcxp_get_sgaddr_t) (void *bfad_fcxp, int sgeid);
124 typedef u32 (*bfa_fcxp_get_sglen_t) (void *bfad_fcxp, int sgeid);
125 typedef void (*bfa_cb_fcxp_send_t) (void *bfad_fcxp, struct bfa_fcxp_s *fcxp,
126 				    void *cbarg, enum bfa_status req_status,
127 				    u32 rsp_len, u32 resid_len,
128 				    struct fchs_s *rsp_fchs);
129 typedef void (*bfa_fcxp_alloc_cbfn_t) (void *cbarg, struct bfa_fcxp_s *fcxp);
130 
131 
132 
133 /*
134  * Information needed for a FCXP request
135  */
136 struct bfa_fcxp_req_info_s {
137 	struct bfa_rport_s *bfa_rport;
138 					/* Pointer to the bfa rport that was
139 					 * returned from bfa_rport_create().
140 					 * This could be left NULL for WKA or
141 					 * for FCXP interactions before the
142 					 * rport nexus is established
143 					 */
144 	struct fchs_s	fchs;	/*  request FC header structure */
145 	u8		cts;	/*  continuous sequence */
146 	u8		class;	/*  FC class for the request/response */
147 	u16	max_frmsz;	/*  max send frame size */
148 	u16	vf_id;	/*  vsan tag if applicable */
149 	u8		lp_tag;	/*  lport tag */
150 	u32	req_tot_len;	/*  request payload total length */
151 };
152 
153 struct bfa_fcxp_rsp_info_s {
154 	struct fchs_s	rsp_fchs;
155 				/* Response frame's FC header will
156 				 * be sent back in this field */
157 	u8		rsp_timeout;
158 				/* timeout in seconds, 0-no response */
159 	u8		rsvd2[3];
160 	u32	rsp_maxlen;	/*  max response length expected */
161 };
162 
163 struct bfa_fcxp_s {
164 	struct list_head	qe;		/*  fcxp queue element */
165 	bfa_sm_t	sm;		/*  state machine */
166 	void		*caller;	/*  driver or fcs */
167 	struct bfa_fcxp_mod_s *fcxp_mod;
168 	/*  back pointer to fcxp mod */
169 	u16	fcxp_tag;	/*  internal tag */
170 	struct bfa_fcxp_req_info_s req_info;
171 	/*  request info */
172 	struct bfa_fcxp_rsp_info_s rsp_info;
173 	/*  response info */
174 	u8	use_ireqbuf;	/*  use internal req buf */
175 	u8		use_irspbuf;	/*  use internal rsp buf */
176 	u32	nreq_sgles;	/*  num request SGLEs */
177 	u32	nrsp_sgles;	/*  num response SGLEs */
178 	struct list_head req_sgpg_q;	/*  SG pages for request buf */
179 	struct list_head req_sgpg_wqe;	/*  wait queue for req SG page */
180 	struct list_head rsp_sgpg_q;	/*  SG pages for response buf */
181 	struct list_head rsp_sgpg_wqe;	/*  wait queue for rsp SG page */
182 
183 	bfa_fcxp_get_sgaddr_t req_sga_cbfn;
184 	/*  SG elem addr user function */
185 	bfa_fcxp_get_sglen_t req_sglen_cbfn;
186 	/*  SG elem len user function */
187 	bfa_fcxp_get_sgaddr_t rsp_sga_cbfn;
188 	/*  SG elem addr user function */
189 	bfa_fcxp_get_sglen_t rsp_sglen_cbfn;
190 	/*  SG elem len user function */
191 	bfa_cb_fcxp_send_t send_cbfn;   /*  send completion callback */
192 	void		*send_cbarg;	/*  callback arg */
193 	struct bfa_sge_s   req_sge[BFA_FCXP_MAX_SGES];
194 	/*  req SG elems */
195 	struct bfa_sge_s   rsp_sge[BFA_FCXP_MAX_SGES];
196 	/*  rsp SG elems */
197 	u8		rsp_status;	/*  comp: rsp status */
198 	u32	rsp_len;	/*  comp: actual response len */
199 	u32	residue_len;	/*  comp: residual rsp length */
200 	struct fchs_s	rsp_fchs;	/*  comp: response fchs */
201 	struct bfa_cb_qe_s    hcb_qe;	/*  comp: callback qelem */
202 	struct bfa_reqq_wait_s	reqq_wqe;
203 	bfa_boolean_t	reqq_waiting;
204 	bfa_boolean_t	req_rsp;	/* Used to track req/rsp fcxp */
205 };
206 
207 struct bfa_fcxp_wqe_s {
208 	struct list_head		qe;
209 	bfa_fcxp_alloc_cbfn_t	alloc_cbfn;
210 	void		*alloc_cbarg;
211 	void		*caller;
212 	struct bfa_s	*bfa;
213 	int		nreq_sgles;
214 	int		nrsp_sgles;
215 	bfa_fcxp_get_sgaddr_t	req_sga_cbfn;
216 	bfa_fcxp_get_sglen_t	req_sglen_cbfn;
217 	bfa_fcxp_get_sgaddr_t	rsp_sga_cbfn;
218 	bfa_fcxp_get_sglen_t	rsp_sglen_cbfn;
219 };
220 
221 #define BFA_FCXP_REQ_PLD(_fcxp)		(bfa_fcxp_get_reqbuf(_fcxp))
222 #define BFA_FCXP_RSP_FCHS(_fcxp)	(&((_fcxp)->rsp_info.fchs))
223 #define BFA_FCXP_RSP_PLD(_fcxp)		(bfa_fcxp_get_rspbuf(_fcxp))
224 
225 #define BFA_FCXP_REQ_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 
229 /* fcxp_buf = req_buf + rsp_buf :- add req_buf_sz to get to rsp_buf */
230 #define BFA_FCXP_RSP_PLD_PA(_fcxp)					       \
231 	(bfa_mem_get_dmabuf_pa((_fcxp)->fcxp_mod, (_fcxp)->fcxp_tag,	       \
232 	      (_fcxp)->fcxp_mod->req_pld_sz + (_fcxp)->fcxp_mod->rsp_pld_sz) + \
233 	      (_fcxp)->fcxp_mod->req_pld_sz)
234 
235 void	bfa_fcxp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
236 
237 
238 /*
239  * RPORT related defines
240  */
241 enum bfa_rport_event {
242 	BFA_RPORT_SM_CREATE	= 1,	/*  rport create event          */
243 	BFA_RPORT_SM_DELETE	= 2,	/*  deleting an existing rport  */
244 	BFA_RPORT_SM_ONLINE	= 3,	/*  rport is online             */
245 	BFA_RPORT_SM_OFFLINE	= 4,	/*  rport is offline            */
246 	BFA_RPORT_SM_FWRSP	= 5,	/*  firmware response           */
247 	BFA_RPORT_SM_HWFAIL	= 6,	/*  IOC h/w failure             */
248 	BFA_RPORT_SM_QOS_SCN	= 7,	/*  QoS SCN from firmware       */
249 	BFA_RPORT_SM_SET_SPEED	= 8,	/*  Set Rport Speed             */
250 	BFA_RPORT_SM_QRESUME	= 9,	/*  space in requeue queue      */
251 };
252 
253 #define BFA_RPORT_MIN	4
254 
255 struct bfa_rport_mod_s {
256 	struct bfa_rport_s *rps_list;	/*  list of rports	*/
257 	struct list_head	rp_free_q;	/*  free bfa_rports	*/
258 	struct list_head	rp_active_q;	/*  free bfa_rports	*/
259 	struct list_head	rp_unused_q;	/*  unused bfa rports  */
260 	u16	num_rports;	/*  number of rports	*/
261 	struct bfa_mem_kva_s	kva_seg;
262 };
263 
264 #define BFA_RPORT_MOD(__bfa)	(&(__bfa)->modules.rport_mod)
265 #define BFA_MEM_RPORT_KVA(__bfa) (&(BFA_RPORT_MOD(__bfa)->kva_seg))
266 
267 /*
268  * Convert rport tag to RPORT
269  */
270 #define BFA_RPORT_FROM_TAG(__bfa, _tag)				\
271 	(BFA_RPORT_MOD(__bfa)->rps_list +			\
272 	 ((_tag) & (BFA_RPORT_MOD(__bfa)->num_rports - 1)))
273 
274 /*
275  * protected functions
276  */
277 void	bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
278 void	bfa_rport_res_recfg(struct bfa_s *bfa, u16 num_rport_fw);
279 
280 /*
281  *	BFA rport information.
282  */
283 struct bfa_rport_info_s {
284 	u16	max_frmsz;	/*  max rcv pdu size		    */
285 	u32	pid:24,	/*  remote port ID		    */
286 		lp_tag:8;	/*  tag			    */
287 	u32	local_pid:24,	/*  local port ID		    */
288 		cisc:8;	/*  CIRO supported		    */
289 	u8	fc_class;	/*  supported FC classes. enum fc_cos */
290 	u8	vf_en;		/*  virtual fabric enable	    */
291 	u16	vf_id;		/*  virtual fabric ID		    */
292 	enum bfa_port_speed speed;	/*  Rport's current speed	    */
293 };
294 
295 /*
296  * BFA rport data structure
297  */
298 struct bfa_rport_s {
299 	struct list_head	qe;	/*  queue element		    */
300 	bfa_sm_t	sm;		/*  state machine		    */
301 	struct bfa_s	*bfa;		/*  backpointer to BFA		    */
302 	void		*rport_drv;	/*  fcs/driver rport object	    */
303 	u16	fw_handle;	/*  firmware rport handle	    */
304 	u16	rport_tag;	/*  BFA rport tag		    */
305 	u8	lun_mask;	/*  LUN mask flag		    */
306 	struct bfa_rport_info_s rport_info; /*  rport info from fcs/driver */
307 	struct bfa_reqq_wait_s reqq_wait; /*  to wait for room in reqq     */
308 	struct bfa_cb_qe_s hcb_qe;	/*  BFA callback qelem		    */
309 	struct bfa_rport_hal_stats_s stats; /*  BFA rport statistics	    */
310 	struct bfa_rport_qos_attr_s qos_attr;
311 	union a {
312 		bfa_status_t	status;	/*  f/w status */
313 		void		*fw_msg; /*  QoS scn event		    */
314 	} event_arg;
315 };
316 #define BFA_RPORT_FC_COS(_rport)	((_rport)->rport_info.fc_class)
317 
318 
319 /*
320  * UF - unsolicited receive related defines
321  */
322 
323 #define BFA_UF_MIN	(4)
324 #define BFA_UF_MAX	(256)
325 
326 struct bfa_uf_s {
327 	struct list_head	qe;	/*  queue element		*/
328 	struct bfa_s		*bfa;	/*  bfa instance		*/
329 	u16	uf_tag;		/*  identifying tag fw msgs	*/
330 	u16	vf_id;
331 	u16	src_rport_handle;
332 	u16	rsvd;
333 	u8		*data_ptr;
334 	u16	data_len;	/*  actual receive length	*/
335 	u16	pb_len;		/*  posted buffer length	*/
336 	void		*buf_kva;	/*  buffer virtual address	*/
337 	u64	buf_pa;		/*  buffer physical address	*/
338 	struct bfa_cb_qe_s hcb_qe;	/*  comp: BFA comp qelem	*/
339 	struct bfa_sge_s sges[BFI_SGE_INLINE_MAX];
340 };
341 
342 /*
343  *      Callback prototype for unsolicited frame receive handler.
344  *
345  * @param[in]           cbarg           callback arg for receive handler
346  * @param[in]           uf              unsolicited frame descriptor
347  *
348  * @return None
349  */
350 typedef void (*bfa_cb_uf_recv_t) (void *cbarg, struct bfa_uf_s *uf);
351 
352 #define BFA_UF_BUFSZ	(2 * 1024 + 256)
353 
354 struct bfa_uf_buf_s {
355 	u8	d[BFA_UF_BUFSZ];
356 };
357 
358 #define BFA_PER_UF_DMA_SZ	\
359 	(u32)BFA_ROUNDUP(sizeof(struct bfa_uf_buf_s), BFA_DMA_ALIGN_SZ)
360 
361 /* Max UF dma segs required */
362 #define BFA_UF_DMA_SEGS BFI_MEM_DMA_NSEGS(BFA_UF_MAX, BFA_PER_UF_DMA_SZ)
363 
364 struct bfa_uf_mod_s {
365 	struct bfa_s *bfa;		/*  back pointer to BFA */
366 	struct bfa_uf_s *uf_list;	/*  array of UFs */
367 	u16	num_ufs;	/*  num unsolicited rx frames */
368 	struct list_head	uf_free_q;	/*  free UFs */
369 	struct list_head	uf_posted_q;	/*  UFs posted to IOC */
370 	struct list_head	uf_unused_q;	/*  unused UF's */
371 	struct bfi_uf_buf_post_s *uf_buf_posts;
372 	/*  pre-built UF post msgs */
373 	bfa_cb_uf_recv_t ufrecv;	/*  uf recv handler function */
374 	void		*cbarg;		/*  uf receive handler arg */
375 	struct bfa_mem_dma_s	dma_seg[BFA_UF_DMA_SEGS];
376 	struct bfa_mem_kva_s	kva_seg;
377 };
378 
379 #define BFA_UF_MOD(__bfa)	(&(__bfa)->modules.uf_mod)
380 #define BFA_MEM_UF_KVA(__bfa)	(&(BFA_UF_MOD(__bfa)->kva_seg))
381 
382 #define ufm_pbs_pa(_ufmod, _uftag)					\
383 	bfa_mem_get_dmabuf_pa(_ufmod, _uftag, BFA_PER_UF_DMA_SZ)
384 
385 void	bfa_uf_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
386 void	bfa_uf_res_recfg(struct bfa_s *bfa, u16 num_uf_fw);
387 
388 /*
389  * LPS - bfa lport login/logout service interface
390  */
391 struct bfa_lps_s {
392 	struct list_head	qe;	/*  queue element		*/
393 	struct bfa_s	*bfa;		/*  parent bfa instance	*/
394 	bfa_sm_t	sm;		/*  finite state machine	*/
395 	u8		bfa_tag;	/*  lport tag		*/
396 	u8		fw_tag;		/*  lport fw tag                */
397 	u8		reqq;		/*  lport request queue	*/
398 	u8		alpa;		/*  ALPA for loop topologies	*/
399 	u32	lp_pid;		/*  lport port ID		*/
400 	bfa_boolean_t	fdisc;		/*  snd FDISC instead of FLOGI	*/
401 	bfa_boolean_t	auth_en;	/*  enable authentication	*/
402 	bfa_boolean_t	auth_req;	/*  authentication required	*/
403 	bfa_boolean_t	npiv_en;	/*  NPIV is allowed by peer	*/
404 	bfa_boolean_t	fport;		/*  attached peer is F_PORT	*/
405 	bfa_boolean_t	brcd_switch;	/*  attached peer is brcd sw	*/
406 	bfa_status_t	status;		/*  login status		*/
407 	u16		pdusz;		/*  max receive PDU size	*/
408 	u16		pr_bbcred;	/*  BB_CREDIT from peer		*/
409 	u8		lsrjt_rsn;	/*  LSRJT reason		*/
410 	u8		lsrjt_expl;	/*  LSRJT explanation		*/
411 	u8		lun_mask;	/*  LUN mask flag		*/
412 	wwn_t		pwwn;		/*  port wwn of lport		*/
413 	wwn_t		nwwn;		/*  node wwn of lport		*/
414 	wwn_t		pr_pwwn;	/*  port wwn of lport peer	*/
415 	wwn_t		pr_nwwn;	/*  node wwn of lport peer	*/
416 	mac_t		lp_mac;		/*  fpma/spma MAC for lport	*/
417 	mac_t		fcf_mac;	/*  FCF MAC of lport		*/
418 	struct bfa_reqq_wait_s	wqe;	/*  request wait queue element	*/
419 	void		*uarg;		/*  user callback arg		*/
420 	struct bfa_cb_qe_s hcb_qe;	/*  comp: callback qelem	*/
421 	struct bfi_lps_login_rsp_s *loginrsp;
422 	bfa_eproto_status_t ext_status;
423 };
424 
425 struct bfa_lps_mod_s {
426 	struct list_head		lps_free_q;
427 	struct list_head		lps_active_q;
428 	struct list_head		lps_login_q;
429 	struct bfa_lps_s	*lps_arr;
430 	int			num_lps;
431 	struct bfa_mem_kva_s	kva_seg;
432 };
433 
434 #define BFA_LPS_MOD(__bfa)		(&(__bfa)->modules.lps_mod)
435 #define BFA_LPS_FROM_TAG(__mod, __tag)	(&(__mod)->lps_arr[__tag])
436 #define BFA_MEM_LPS_KVA(__bfa)	(&(BFA_LPS_MOD(__bfa)->kva_seg))
437 
438 /*
439  * external functions
440  */
441 void	bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
442 
443 
444 /*
445  * FCPORT related defines
446  */
447 
448 #define BFA_FCPORT(_bfa)	(&((_bfa)->modules.port))
449 
450 /*
451  * Link notification data structure
452  */
453 struct bfa_fcport_ln_s {
454 	struct bfa_fcport_s	*fcport;
455 	bfa_sm_t		sm;
456 	struct bfa_cb_qe_s	ln_qe;	/*  BFA callback queue elem for ln */
457 	enum bfa_port_linkstate ln_event; /*  ln event for callback */
458 };
459 
460 struct bfa_fcport_trunk_s {
461 	struct bfa_trunk_attr_s	attr;
462 };
463 
464 /*
465  * BFA FC port data structure
466  */
467 struct bfa_fcport_s {
468 	struct bfa_s		*bfa;	/*  parent BFA instance */
469 	bfa_sm_t		sm;	/*  port state machine */
470 	wwn_t			nwwn;	/*  node wwn of physical port */
471 	wwn_t			pwwn;	/*  port wwn of physical oprt */
472 	enum bfa_port_speed speed_sup;
473 	/*  supported speeds */
474 	enum bfa_port_speed speed;	/*  current speed */
475 	enum bfa_port_topology topology;	/*  current topology */
476 	u8			rsvd[3];
477 	u8			myalpa;	/*  my ALPA in LOOP topology */
478 	u8			alpabm_valid; /* alpa bitmap valid or not */
479 	struct fc_alpabm_s	alpabm;	/* alpa bitmap */
480 	struct bfa_port_cfg_s	cfg;	/*  current port configuration */
481 	bfa_boolean_t		use_flash_cfg; /* get port cfg from flash */
482 	struct bfa_qos_attr_s  qos_attr;   /* QoS Attributes */
483 	struct bfa_qos_vc_attr_s qos_vc_attr;  /*  VC info from ELP */
484 	struct bfa_reqq_wait_s	reqq_wait;
485 	/*  to wait for room in reqq */
486 	struct bfa_reqq_wait_s	svcreq_wait;
487 	/*  to wait for room in reqq */
488 	struct bfa_reqq_wait_s	stats_reqq_wait;
489 	/*  to wait for room in reqq (stats) */
490 	void			*event_cbarg;
491 	void			(*event_cbfn) (void *cbarg,
492 					       enum bfa_port_linkstate event);
493 	union {
494 		union bfi_fcport_i2h_msg_u i2hmsg;
495 	} event_arg;
496 	void			*bfad;	/*  BFA driver handle */
497 	struct bfa_fcport_ln_s	ln; /*  Link Notification */
498 	struct bfa_cb_qe_s	hcb_qe;	/*  BFA callback queue elem */
499 	struct bfa_timer_s	timer;	/*  timer */
500 	u32		msgtag;	/*  fimrware msg tag for reply */
501 	u8			*stats_kva;
502 	u64		stats_pa;
503 	union bfa_fcport_stats_u *stats;
504 	bfa_status_t		stats_status; /*  stats/statsclr status */
505 	struct list_head	stats_pending_q;
506 	struct list_head	statsclr_pending_q;
507 	bfa_boolean_t		stats_qfull;
508 	time64_t		stats_reset_time; /*  stats reset time stamp */
509 	bfa_boolean_t		diag_busy; /*  diag busy status */
510 	bfa_boolean_t		beacon; /*  port beacon status */
511 	bfa_boolean_t		link_e2e_beacon; /*  link beacon status */
512 	struct bfa_fcport_trunk_s trunk;
513 	u16		fcoe_vlan;
514 	struct bfa_mem_dma_s	fcport_dma;
515 	bfa_boolean_t		stats_dma_ready;
516 	struct bfa_bbcr_attr_s	bbcr_attr;
517 	enum bfa_fec_state_s	fec_state;
518 };
519 
520 #define BFA_FCPORT_MOD(__bfa)	(&(__bfa)->modules.fcport)
521 #define BFA_MEM_FCPORT_DMA(__bfa) (&(BFA_FCPORT_MOD(__bfa)->fcport_dma))
522 
523 /*
524  * protected functions
525  */
526 void bfa_fcport_init(struct bfa_s *bfa);
527 void bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
528 
529 /*
530  * bfa fcport API functions
531  */
532 bfa_status_t bfa_fcport_enable(struct bfa_s *bfa);
533 bfa_status_t bfa_fcport_disable(struct bfa_s *bfa);
534 bfa_status_t bfa_fcport_cfg_speed(struct bfa_s *bfa,
535 				  enum bfa_port_speed speed);
536 enum bfa_port_speed bfa_fcport_get_speed(struct bfa_s *bfa);
537 bfa_status_t bfa_fcport_cfg_topology(struct bfa_s *bfa,
538 				     enum bfa_port_topology topo);
539 enum bfa_port_topology bfa_fcport_get_topology(struct bfa_s *bfa);
540 enum bfa_port_topology bfa_fcport_get_cfg_topology(struct bfa_s *bfa);
541 bfa_status_t bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa);
542 bfa_boolean_t bfa_fcport_get_hardalpa(struct bfa_s *bfa, u8 *alpa);
543 u8 bfa_fcport_get_myalpa(struct bfa_s *bfa);
544 bfa_status_t bfa_fcport_clr_hardalpa(struct bfa_s *bfa);
545 bfa_status_t bfa_fcport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxsize);
546 u16 bfa_fcport_get_maxfrsize(struct bfa_s *bfa);
547 u8 bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa);
548 void bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_port_attr_s *attr);
549 wwn_t bfa_fcport_get_wwn(struct bfa_s *bfa, bfa_boolean_t node);
550 void bfa_fcport_event_register(struct bfa_s *bfa,
551 			void (*event_cbfn) (void *cbarg,
552 			enum bfa_port_linkstate event), void *event_cbarg);
553 bfa_boolean_t bfa_fcport_is_disabled(struct bfa_s *bfa);
554 bfa_boolean_t bfa_fcport_is_dport(struct bfa_s *bfa);
555 bfa_boolean_t bfa_fcport_is_ddport(struct bfa_s *bfa);
556 bfa_status_t bfa_fcport_set_qos_bw(struct bfa_s *bfa,
557 				   struct bfa_qos_bw_s *qos_bw);
558 enum bfa_port_speed bfa_fcport_get_ratelim_speed(struct bfa_s *bfa);
559 
560 void bfa_fcport_set_tx_bbcredit(struct bfa_s *bfa, u16 tx_bbcredit);
561 bfa_boolean_t     bfa_fcport_is_ratelim(struct bfa_s *bfa);
562 void bfa_fcport_beacon(void *dev, bfa_boolean_t beacon,
563 			bfa_boolean_t link_e2e_beacon);
564 bfa_boolean_t	bfa_fcport_is_linkup(struct bfa_s *bfa);
565 bfa_status_t bfa_fcport_get_stats(struct bfa_s *bfa,
566 			struct bfa_cb_pending_q_s *cb);
567 bfa_status_t bfa_fcport_clear_stats(struct bfa_s *bfa,
568 			struct bfa_cb_pending_q_s *cb);
569 bfa_boolean_t bfa_fcport_is_qos_enabled(struct bfa_s *bfa);
570 bfa_boolean_t bfa_fcport_is_trunk_enabled(struct bfa_s *bfa);
571 void bfa_fcport_dportenable(struct bfa_s *bfa);
572 void bfa_fcport_dportdisable(struct bfa_s *bfa);
573 bfa_status_t bfa_fcport_is_pbcdisabled(struct bfa_s *bfa);
574 void bfa_fcport_cfg_faa(struct bfa_s *bfa, u8 state);
575 bfa_status_t bfa_fcport_cfg_bbcr(struct bfa_s *bfa,
576 			bfa_boolean_t on_off, u8 bb_scn);
577 bfa_status_t bfa_fcport_get_bbcr_attr(struct bfa_s *bfa,
578 			struct bfa_bbcr_attr_s *bbcr_attr);
579 
580 /*
581  * bfa rport API functions
582  */
583 struct bfa_rport_s *bfa_rport_create(struct bfa_s *bfa, void *rport_drv);
584 void bfa_rport_online(struct bfa_rport_s *rport,
585 		      struct bfa_rport_info_s *rport_info);
586 void bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed);
587 void bfa_cb_rport_online(void *rport);
588 void bfa_cb_rport_offline(void *rport);
589 void bfa_cb_rport_qos_scn_flowid(void *rport,
590 				 struct bfa_rport_qos_attr_s old_qos_attr,
591 				 struct bfa_rport_qos_attr_s new_qos_attr);
592 void bfa_cb_rport_scn_online(struct bfa_s *bfa);
593 void bfa_cb_rport_scn_offline(struct bfa_s *bfa);
594 void bfa_cb_rport_scn_no_dev(void *rp);
595 void bfa_cb_rport_qos_scn_prio(void *rport,
596 			       struct bfa_rport_qos_attr_s old_qos_attr,
597 			       struct bfa_rport_qos_attr_s new_qos_attr);
598 
599 /*
600  *	Rport LUN masking related
601  */
602 #define BFA_RPORT_TAG_INVALID	0xffff
603 #define BFA_LP_TAG_INVALID	0xff
604 void	bfa_rport_set_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
605 void	bfa_rport_unset_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
606 
607 /*
608  * bfa fcxp API functions
609  */
610 struct bfa_fcxp_s *bfa_fcxp_req_rsp_alloc(void *bfad_fcxp, struct bfa_s *bfa,
611 				  int nreq_sgles, int nrsp_sgles,
612 				  bfa_fcxp_get_sgaddr_t get_req_sga,
613 				  bfa_fcxp_get_sglen_t get_req_sglen,
614 				  bfa_fcxp_get_sgaddr_t get_rsp_sga,
615 				  bfa_fcxp_get_sglen_t get_rsp_sglen,
616 				  bfa_boolean_t req);
617 void bfa_fcxp_req_rsp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
618 				bfa_fcxp_alloc_cbfn_t alloc_cbfn,
619 				void *cbarg, void *bfad_fcxp,
620 				int nreq_sgles, int nrsp_sgles,
621 				bfa_fcxp_get_sgaddr_t get_req_sga,
622 				bfa_fcxp_get_sglen_t get_req_sglen,
623 				bfa_fcxp_get_sgaddr_t get_rsp_sga,
624 				bfa_fcxp_get_sglen_t get_rsp_sglen,
625 				bfa_boolean_t req);
626 void bfa_fcxp_walloc_cancel(struct bfa_s *bfa,
627 			    struct bfa_fcxp_wqe_s *wqe);
628 void bfa_fcxp_discard(struct bfa_fcxp_s *fcxp);
629 
630 void *bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp);
631 void *bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp);
632 
633 void bfa_fcxp_free(struct bfa_fcxp_s *fcxp);
634 
635 void bfa_fcxp_send(struct bfa_fcxp_s *fcxp, struct bfa_rport_s *rport,
636 		   u16 vf_id, u8 lp_tag,
637 		   bfa_boolean_t cts, enum fc_cos cos,
638 		   u32 reqlen, struct fchs_s *fchs,
639 		   bfa_cb_fcxp_send_t cbfn,
640 		   void *cbarg,
641 		   u32 rsp_maxlen, u8 rsp_timeout);
642 bfa_status_t bfa_fcxp_abort(struct bfa_fcxp_s *fcxp);
643 u32 bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp);
644 u32 bfa_fcxp_get_maxrsp(struct bfa_s *bfa);
645 void bfa_fcxp_res_recfg(struct bfa_s *bfa, u16 num_fcxp_fw);
646 
647 static inline void *
bfa_uf_get_frmbuf(struct bfa_uf_s * uf)648 bfa_uf_get_frmbuf(struct bfa_uf_s *uf)
649 {
650 	return uf->data_ptr;
651 }
652 
653 static inline   u16
bfa_uf_get_frmlen(struct bfa_uf_s * uf)654 bfa_uf_get_frmlen(struct bfa_uf_s *uf)
655 {
656 	return uf->data_len;
657 }
658 
659 /*
660  * bfa uf API functions
661  */
662 void bfa_uf_recv_register(struct bfa_s *bfa, bfa_cb_uf_recv_t ufrecv,
663 			  void *cbarg);
664 void bfa_uf_free(struct bfa_uf_s *uf);
665 
666 /*
667  * bfa lport service api
668  */
669 
670 u32 bfa_lps_get_max_vport(struct bfa_s *bfa);
671 struct bfa_lps_s *bfa_lps_alloc(struct bfa_s *bfa);
672 void bfa_lps_delete(struct bfa_lps_s *lps);
673 void bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa,
674 		   u16 pdusz, wwn_t pwwn, wwn_t nwwn,
675 		   bfa_boolean_t auth_en);
676 void bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz,
677 		   wwn_t pwwn, wwn_t nwwn);
678 void bfa_lps_fdisclogo(struct bfa_lps_s *lps);
679 void bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, u32 n2n_pid);
680 u8 bfa_lps_get_fwtag(struct bfa_s *bfa, u8 lp_tag);
681 u32 bfa_lps_get_base_pid(struct bfa_s *bfa);
682 u8 bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid);
683 void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status);
684 void bfa_cb_lps_flogo_comp(void *bfad, void *uarg);
685 void bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status);
686 void bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg);
687 void bfa_cb_lps_cvl_event(void *bfad, void *uarg);
688 
689 /* FAA specific APIs */
690 bfa_status_t bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
691 			bfa_cb_iocfc_t cbfn, void *cbarg);
692 
693 /*
694  *	FC DIAG data structure
695  */
696 struct bfa_fcdiag_qtest_s {
697 	struct bfa_diag_qtest_result_s *result;
698 	bfa_cb_diag_t	cbfn;
699 	void		*cbarg;
700 	struct bfa_timer_s	timer;
701 	u32	status;
702 	u32	count;
703 	u8	lock;
704 	u8	queue;
705 	u8	all;
706 	u8	timer_active;
707 };
708 
709 struct bfa_fcdiag_lb_s {
710 	bfa_cb_diag_t   cbfn;
711 	void            *cbarg;
712 	void            *result;
713 	bfa_boolean_t   lock;
714 	u32        status;
715 };
716 
717 struct bfa_dport_s {
718 	struct bfa_s	*bfa;		/* Back pointer to BFA	*/
719 	bfa_sm_t	sm;		/* finite state machine */
720 	struct bfa_reqq_wait_s reqq_wait;
721 	bfa_cb_diag_t	cbfn;
722 	void		*cbarg;
723 	union bfi_diag_dport_msg_u i2hmsg;
724 	u8		test_state;	/* enum dport_test_state  */
725 	u8		dynamic;	/* boolean_t  */
726 	u8		rsvd[2];
727 	u32		lpcnt;
728 	u32		payload;	/* user defined payload pattern */
729 	wwn_t		rp_pwwn;
730 	wwn_t		rp_nwwn;
731 	struct bfa_diag_dport_result_s result;
732 };
733 
734 struct bfa_fcdiag_s {
735 	struct bfa_s    *bfa;           /* Back pointer to BFA */
736 	struct bfa_trc_mod_s   *trcmod;
737 	struct bfa_fcdiag_lb_s lb;
738 	struct bfa_fcdiag_qtest_s qtest;
739 	struct bfa_dport_s	dport;
740 };
741 
742 #define BFA_FCDIAG_MOD(__bfa)	(&(__bfa)->modules.fcdiag)
743 
744 void	bfa_fcdiag_intr(struct bfa_s *bfa, struct bfi_msg_s *msg);
745 
746 bfa_status_t	bfa_fcdiag_loopback(struct bfa_s *bfa,
747 				enum bfa_port_opmode opmode,
748 				enum bfa_port_speed speed, u32 lpcnt, u32 pat,
749 				struct bfa_diag_loopback_result_s *result,
750 				bfa_cb_diag_t cbfn, void *cbarg);
751 bfa_status_t	bfa_fcdiag_queuetest(struct bfa_s *bfa, u32 ignore,
752 			u32 queue, struct bfa_diag_qtest_result_s *result,
753 			bfa_cb_diag_t cbfn, void *cbarg);
754 bfa_status_t	bfa_fcdiag_lb_is_running(struct bfa_s *bfa);
755 bfa_status_t	bfa_dport_enable(struct bfa_s *bfa, u32 lpcnt, u32 pat,
756 					bfa_cb_diag_t cbfn, void *cbarg);
757 bfa_status_t	bfa_dport_disable(struct bfa_s *bfa, bfa_cb_diag_t cbfn,
758 				  void *cbarg);
759 bfa_status_t	bfa_dport_start(struct bfa_s *bfa, u32 lpcnt, u32 pat,
760 				bfa_cb_diag_t cbfn, void *cbarg);
761 bfa_status_t	bfa_dport_show(struct bfa_s *bfa,
762 				struct bfa_diag_dport_result_s *result);
763 
764 #endif /* __BFA_SVC_H__ */
765