]> git.karo-electronics.de Git - mv-sheeva.git/blob - drivers/scsi/bfa/lport_api.c
Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[mv-sheeva.git] / drivers / scsi / bfa / lport_api.c
1 /*
2  * Copyright (c) 2005-2009 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 /**
19  *  port_api.c BFA FCS port
20  */
21
22 #include <fcs/bfa_fcs.h>
23 #include <fcs/bfa_fcs_lport.h>
24 #include <fcs/bfa_fcs_rport.h>
25 #include "fcs_rport.h"
26 #include "fcs_fabric.h"
27 #include "fcs_trcmod.h"
28 #include "fcs_vport.h"
29
30 BFA_TRC_FILE(FCS, PORT_API);
31
32
33
34 /**
35  *  fcs_port_api BFA FCS port API
36  */
37
38 void
39 bfa_fcs_cfg_base_port(struct bfa_fcs_s *fcs, struct bfa_port_cfg_s *port_cfg)
40 {
41 }
42
43 struct bfa_fcs_port_s *
44 bfa_fcs_get_base_port(struct bfa_fcs_s *fcs)
45 {
46         return &fcs->fabric.bport;
47 }
48
49 wwn_t
50 bfa_fcs_port_get_rport(struct bfa_fcs_port_s *port, wwn_t wwn, int index,
51                        int nrports, bfa_boolean_t bwwn)
52 {
53         struct list_head *qh, *qe;
54         struct bfa_fcs_rport_s *rport = NULL;
55         int             i;
56         struct bfa_fcs_s *fcs;
57
58         if (port == NULL || nrports == 0)
59                 return (wwn_t) 0;
60
61         fcs = port->fcs;
62         bfa_trc(fcs, (u32) nrports);
63
64         i = 0;
65         qh = &port->rport_q;
66         qe = bfa_q_first(qh);
67
68         while ((qe != qh) && (i < nrports)) {
69                 rport = (struct bfa_fcs_rport_s *)qe;
70                 if (bfa_os_ntoh3b(rport->pid) > 0xFFF000) {
71                         qe = bfa_q_next(qe);
72                         bfa_trc(fcs, (u32) rport->pwwn);
73                         bfa_trc(fcs, rport->pid);
74                         bfa_trc(fcs, i);
75                         continue;
76                 }
77
78                 if (bwwn) {
79                         if (!memcmp(&wwn, &rport->pwwn, 8))
80                                 break;
81                 } else {
82                         if (i == index)
83                                 break;
84                 }
85
86                 i++;
87                 qe = bfa_q_next(qe);
88         }
89
90         bfa_trc(fcs, i);
91         if (rport)
92                 return rport->pwwn;
93         else
94                 return (wwn_t) 0;
95 }
96
97 void
98 bfa_fcs_port_get_rports(struct bfa_fcs_port_s *port, wwn_t rport_wwns[],
99                         int *nrports)
100 {
101         struct list_head *qh, *qe;
102         struct bfa_fcs_rport_s *rport = NULL;
103         int             i;
104         struct bfa_fcs_s *fcs;
105
106         if (port == NULL || rport_wwns == NULL || *nrports == 0)
107                 return;
108
109         fcs = port->fcs;
110         bfa_trc(fcs, (u32) *nrports);
111
112         i = 0;
113         qh = &port->rport_q;
114         qe = bfa_q_first(qh);
115
116         while ((qe != qh) && (i < *nrports)) {
117                 rport = (struct bfa_fcs_rport_s *)qe;
118                 if (bfa_os_ntoh3b(rport->pid) > 0xFFF000) {
119                         qe = bfa_q_next(qe);
120                         bfa_trc(fcs, (u32) rport->pwwn);
121                         bfa_trc(fcs, rport->pid);
122                         bfa_trc(fcs, i);
123                         continue;
124                 }
125
126                 rport_wwns[i] = rport->pwwn;
127
128                 i++;
129                 qe = bfa_q_next(qe);
130         }
131
132         bfa_trc(fcs, i);
133         *nrports = i;
134         return;
135 }
136
137 /*
138  * Iterate's through all the rport's in the given port to
139  * determine the maximum operating speed.
140  *
141  * To be used in TRL Functionality only
142  */
143 enum bfa_pport_speed
144 bfa_fcs_port_get_rport_max_speed(struct bfa_fcs_port_s *port)
145 {
146         struct list_head *qh, *qe;
147         struct bfa_fcs_rport_s *rport = NULL;
148         struct bfa_fcs_s *fcs;
149         enum bfa_pport_speed max_speed = 0;
150         struct bfa_pport_attr_s pport_attr;
151         enum bfa_pport_speed pport_speed, rport_speed;
152         bfa_boolean_t     trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);
153
154         if (port == NULL)
155                 return 0;
156
157         fcs = port->fcs;
158
159         /*
160          * Get Physical port's current speed
161          */
162         bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);
163         pport_speed = pport_attr.speed;
164         bfa_trc(fcs, pport_speed);
165
166         qh = &port->rport_q;
167         qe = bfa_q_first(qh);
168
169         while (qe != qh) {
170                 rport = (struct bfa_fcs_rport_s *) qe;
171                 if ((bfa_os_ntoh3b(rport->pid) > 0xFFF000) ||
172                         (bfa_fcs_rport_get_state(rport) ==
173                                                 BFA_RPORT_OFFLINE)) {
174                         qe = bfa_q_next(qe);
175                         continue;
176                 }
177
178                 rport_speed = rport->rpf.rpsc_speed;
179                 if ((trl_enabled) &&  (rport_speed ==
180                                                 BFA_PPORT_SPEED_UNKNOWN)) {
181                         /* Use default ratelim speed setting */
182                         rport_speed =
183                                 bfa_fcport_get_ratelim_speed(port->fcs->bfa);
184                 }
185
186                 if ((rport_speed  == BFA_PPORT_SPEED_8GBPS) ||
187                         (rport_speed > pport_speed)) {
188                         max_speed = rport_speed;
189                         break;
190                 } else if (rport_speed > max_speed) {
191                         max_speed = rport_speed;
192                 }
193
194                 qe = bfa_q_next(qe);
195         }
196
197         bfa_trc(fcs, max_speed);
198         return max_speed;
199 }
200
201 struct bfa_fcs_port_s *
202 bfa_fcs_lookup_port(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t lpwwn)
203 {
204         struct bfa_fcs_vport_s *vport;
205         bfa_fcs_vf_t   *vf;
206
207         bfa_assert(fcs != NULL);
208
209         vf = bfa_fcs_vf_lookup(fcs, vf_id);
210         if (vf == NULL) {
211                 bfa_trc(fcs, vf_id);
212                 return NULL;
213         }
214
215         if (!lpwwn || (vf->bport.port_cfg.pwwn == lpwwn))
216                 return &vf->bport;
217
218         vport = bfa_fcs_fabric_vport_lookup(vf, lpwwn);
219         if (vport)
220                 return &vport->lport;
221
222         return NULL;
223 }
224
225 /*
226  *  API corresponding to VmWare's NPIV_VPORT_GETINFO.
227  */
228 void
229 bfa_fcs_port_get_info(struct bfa_fcs_port_s *port,
230                       struct bfa_port_info_s *port_info)
231 {
232
233         bfa_trc(port->fcs, port->fabric->fabric_name);
234
235         if (port->vport == NULL) {
236                 /*
237                  * This is a Physical port
238                  */
239                 port_info->port_type = BFA_PORT_TYPE_PHYSICAL;
240
241                 /*
242                  * @todo : need to fix the state & reason
243                  */
244                 port_info->port_state = 0;
245                 port_info->offline_reason = 0;
246
247                 port_info->port_wwn = bfa_fcs_port_get_pwwn(port);
248                 port_info->node_wwn = bfa_fcs_port_get_nwwn(port);
249
250                 port_info->max_vports_supp =
251                         bfa_lps_get_max_vport(port->fcs->bfa);
252                 port_info->num_vports_inuse =
253                         bfa_fcs_fabric_vport_count(port->fabric);
254                 port_info->max_rports_supp = BFA_FCS_MAX_RPORTS_SUPP;
255                 port_info->num_rports_inuse = port->num_rports;
256         } else {
257                 /*
258                  * This is a virtual port
259                  */
260                 port_info->port_type = BFA_PORT_TYPE_VIRTUAL;
261
262                 /*
263                  * @todo : need to fix the state & reason
264                  */
265                 port_info->port_state = 0;
266                 port_info->offline_reason = 0;
267
268                 port_info->port_wwn = bfa_fcs_port_get_pwwn(port);
269                 port_info->node_wwn = bfa_fcs_port_get_nwwn(port);
270         }
271 }
272
273 void
274 bfa_fcs_port_get_stats(struct bfa_fcs_port_s *fcs_port,
275                        struct bfa_port_stats_s *port_stats)
276 {
277         bfa_os_memcpy(port_stats, &fcs_port->stats,
278                       sizeof(struct bfa_port_stats_s));
279         return;
280 }
281
282 void
283 bfa_fcs_port_clear_stats(struct bfa_fcs_port_s *fcs_port)
284 {
285         bfa_os_memset(&fcs_port->stats, 0, sizeof(struct bfa_port_stats_s));
286         return;
287 }
288
289 void
290 bfa_fcs_port_enable_ipfc_roles(struct bfa_fcs_port_s *fcs_port)
291 {
292         fcs_port->port_cfg.roles |= BFA_PORT_ROLE_FCP_IPFC;
293         return;
294 }
295
296 void
297 bfa_fcs_port_disable_ipfc_roles(struct bfa_fcs_port_s *fcs_port)
298 {
299         fcs_port->port_cfg.roles &= ~BFA_PORT_ROLE_FCP_IPFC;
300         return;
301 }
302
303