aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/bfa/lport_api.c
blob: 72b3f508d0e958939ea5ee3d369d9a605c617032 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
/*
 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

/**
 *  port_api.c BFA FCS port
 */

#include <fcs/bfa_fcs.h>
#include <fcs/bfa_fcs_lport.h>
#include <fcs/bfa_fcs_rport.h>
#include "fcs_rport.h"
#include "fcs_fabric.h"
#include "fcs_trcmod.h"
#include "fcs_vport.h"

BFA_TRC_FILE(FCS, PORT_API);



/**
 *  fcs_port_api BFA FCS port API
 */

void
bfa_fcs_cfg_base_port(struct bfa_fcs_s *fcs, struct bfa_port_cfg_s *port_cfg)
{
}

struct bfa_fcs_port_s *
bfa_fcs_get_base_port(struct bfa_fcs_s *fcs)
{
	return &fcs->fabric.bport;
}

wwn_t
bfa_fcs_port_get_rport(struct bfa_fcs_port_s *port, wwn_t wwn, int index,
		       int nrports, bfa_boolean_t bwwn)
{
	struct list_head *qh, *qe;
	struct bfa_fcs_rport_s *rport = NULL;
	int             i;
	struct bfa_fcs_s *fcs;

	if (port == NULL || nrports == 0)
		return (wwn_t) 0;

	fcs = port->fcs;
	bfa_trc(fcs, (u32) nrports);

	i = 0;
	qh = &port->rport_q;
	qe = bfa_q_first(qh);

	while ((qe != qh) && (i < nrports)) {
		rport = (struct bfa_fcs_rport_s *)qe;
		if (bfa_os_ntoh3b(rport->pid) > 0xFFF000) {
			qe = bfa_q_next(qe);
			bfa_trc(fcs, (u32) rport->pwwn);
			bfa_trc(fcs, rport->pid);
			bfa_trc(fcs, i);
			continue;
		}

		if (bwwn) {
			if (!memcmp(&wwn, &rport->pwwn, 8))
				break;
		} else {
			if (i == index)
				break;
		}

		i++;
		qe = bfa_q_next(qe);
	}

	bfa_trc(fcs, i);
	if (rport)
		return rport->pwwn;
	else
		return (wwn_t) 0;
}

void
bfa_fcs_port_get_rports(struct bfa_fcs_port_s *port, wwn_t rport_wwns[],
			int *nrports)
{
	struct list_head *qh, *qe;
	struct bfa_fcs_rport_s *rport = NULL;
	int             i;
	struct bfa_fcs_s *fcs;

	if (port == NULL || rport_wwns == NULL || *nrports == 0)
		return;

	fcs = port->fcs;
	bfa_trc(fcs, (u32) *nrports);

	i = 0;
	qh = &port->rport_q;
	qe = bfa_q_first(qh);

	while ((qe != qh) && (i < *nrports)) {
		rport = (struct bfa_fcs_rport_s *)qe;
		if (bfa_os_ntoh3b(rport->pid) > 0xFFF000) {
			qe = bfa_q_next(qe);
			bfa_trc(fcs, (u32) rport->pwwn);
			bfa_trc(fcs, rport->pid);
			bfa_trc(fcs, i);
			continue;
		}

		rport_wwns[i] = rport->pwwn;

		i++;
		qe = bfa_q_next(qe);
	}

	bfa_trc(fcs, i);
	*nrports = i;
	return;
}

/*
 * Iterate's through all the rport's in the given port to
 * determine the maximum operating speed.
 *
 * To be used in TRL Functionality only
 */
enum bfa_pport_speed
bfa_fcs_port_get_rport_max_speed(struct bfa_fcs_port_s *port)
{
	struct list_head *qh, *qe;
	struct bfa_fcs_rport_s *rport = NULL;
	struct bfa_fcs_s *fcs;
	enum bfa_pport_speed max_speed = 0;
	struct bfa_pport_attr_s pport_attr;
	enum bfa_pport_speed pport_speed, rport_speed;
	bfa_boolean_t     trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);

	if (port == NULL)
		return 0;

	fcs = port->fcs;

	/*
	 * Get Physical port's current speed
	 */
	bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);
	pport_speed = pport_attr.speed;
	bfa_trc(fcs, pport_speed);

	qh = &port->rport_q;
	qe = bfa_q_first(qh);

	while (qe != qh) {
		rport = (struct bfa_fcs_rport_s *) qe;
		if ((bfa_os_ntoh3b(rport->pid) > 0xFFF000) ||
			(bfa_fcs_rport_get_state(rport) ==
						BFA_RPORT_OFFLINE)) {
			qe = bfa_q_next(qe);
			continue;
		}

		rport_speed = rport->rpf.rpsc_speed;
		if ((trl_enabled) &&  (rport_speed ==
						BFA_PPORT_SPEED_UNKNOWN)) {
			/* Use default ratelim speed setting */
			rport_speed =
				bfa_fcport_get_ratelim_speed(port->fcs->bfa);
		}

		if ((rport_speed  == BFA_PPORT_SPEED_8GBPS) ||
			(rport_speed > pport_speed)) {
			max_speed = rport_speed;
			break;
		} else if (rport_speed > max_speed) {
			max_speed = rport_speed;
		}

		qe = bfa_q_next(qe);
	}

	bfa_trc(fcs, max_speed);
	return max_speed;
}

struct bfa_fcs_port_s *
bfa_fcs_lookup_port(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t lpwwn)
{
	struct bfa_fcs_vport_s *vport;
	bfa_fcs_vf_t   *vf;

	bfa_assert(fcs != NULL);

	vf = bfa_fcs_vf_lookup(fcs, vf_id);
	if (vf == NULL) {
		bfa_trc(fcs, vf_id);
		return NULL;
	}

	if (!lpwwn || (vf->bport.port_cfg.pwwn == lpwwn))
		return &vf->bport;

	vport = bfa_fcs_fabric_vport_lookup(vf, lpwwn);
	if (vport)
		return &vport->lport;

	return NULL;
}

/*
 *  API corresponding to VmWare's NPIV_VPORT_GETINFO.
 */
void
bfa_fcs_port_get_info(struct bfa_fcs_port_s *port,
		      struct bfa_port_info_s *port_info)
{

	bfa_trc(port->fcs, port->fabric->fabric_name);

	if (port->vport == NULL) {
		/*
		 * This is a Physical port
		 */
		port_info->port_type = BFA_PORT_TYPE_PHYSICAL;

		/*
		 * @todo : need to fix the state & reason
		 */
		port_info->port_state = 0;
		port_info->offline_reason = 0;

		port_info->port_wwn = bfa_fcs_port_get_pwwn(port);
		port_info->node_wwn = bfa_fcs_port_get_nwwn(port);

		port_info->max_vports_supp =
			bfa_lps_get_max_vport(port->fcs->bfa);
		port_info->num_vports_inuse =
			bfa_fcs_fabric_vport_count(port->fabric);
		port_info->max_rports_supp = BFA_FCS_MAX_RPORTS_SUPP;
		port_info->num_rports_inuse = port->num_rports;
	} else {
		/*
		 * This is a virtual port
		 */
		port_info->port_type = BFA_PORT_TYPE_VIRTUAL;

		/*
		 * @todo : need to fix the state & reason
		 */
		port_info->port_state = 0;
		port_info->offline_reason = 0;

		port_info->port_wwn = bfa_fcs_port_get_pwwn(port);
		port_info->node_wwn = bfa_fcs_port_get_nwwn(port);
	}
}

void
bfa_fcs_port_get_stats(struct bfa_fcs_port_s *fcs_port,
		       struct bfa_port_stats_s *port_stats)
{
	bfa_os_memcpy(port_stats, &fcs_port->stats,
		      sizeof(struct bfa_port_stats_s));
	return;
}

void
bfa_fcs_port_clear_stats(struct bfa_fcs_port_s *fcs_port)
{
	bfa_os_memset(&fcs_port->stats, 0, sizeof(struct bfa_port_stats_s));
	return;
}

void
bfa_fcs_port_enable_ipfc_roles(struct bfa_fcs_port_s *fcs_port)
{
	fcs_port->port_cfg.roles |= BFA_PORT_ROLE_FCP_IPFC;
	return;
}

void
bfa_fcs_port_disable_ipfc_roles(struct bfa_fcs_port_s *fcs_port)
{
	fcs_port->port_cfg.roles &= ~BFA_PORT_ROLE_FCP_IPFC;
	return;
}