tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#include <bfa.h>
18#include <bfa_svc.h>
19#include "fcs_vport.h"
20#include "fcs_lport.h"
21#include "fcs_rport.h"
22#include "fcs_trcmod.h"
23
24BFA_TRC_FILE(FCS, RPORT_API);
25
26/**
27 * rport_api.c Remote port implementation.
28 */
29
30/**
31 * fcs_rport_api FCS rport API.
32 */
33
34/**
35 * Direct API to add a target by port wwn. This interface is used, for
36 * example, by bios when target pwwn is known from boot lun configuration.
37 */
38bfa_status_t
39bfa_fcs_rport_add(struct bfa_fcs_port_s *port, wwn_t *pwwn,
40 struct bfa_fcs_rport_s *rport,
41 struct bfad_rport_s *rport_drv)
42{
43 bfa_trc(port->fcs, *pwwn);
44
45 return BFA_STATUS_OK;
46}
47
48/**
49 * Direct API to remove a target and its associated resources. This
50 * interface is used, for example, by vmware driver to remove target
51 * ports from the target list for a VM.
52 */
53bfa_status_t
54bfa_fcs_rport_remove(struct bfa_fcs_rport_s *rport_in)
55{
56
57 struct bfa_fcs_rport_s *rport;
58
59 bfa_trc(rport_in->fcs, rport_in->pwwn);
60
61 rport = bfa_fcs_port_get_rport_by_pwwn(rport_in->port, rport_in->pwwn);
62 if (rport == NULL) {
63 /*
64 * TBD Error handling
65 */
66 bfa_trc(rport_in->fcs, rport_in->pid);
67 return BFA_STATUS_UNKNOWN_RWWN;
68 }
69
70 /*
71 * TBD if this remote port is online, send a logo
72 */
73 return BFA_STATUS_OK;
74
75}
76
77/**
78 * Remote device status for display/debug.
79 */
80void
81bfa_fcs_rport_get_attr(struct bfa_fcs_rport_s *rport,
82 struct bfa_rport_attr_s *rport_attr)
83{
84 struct bfa_rport_qos_attr_s qos_attr;
85 struct bfa_fcs_port_s *port = rport->port;
86
87 bfa_os_memset(rport_attr, 0, sizeof(struct bfa_rport_attr_s));
88
89 rport_attr->pid = rport->pid;
90 rport_attr->pwwn = rport->pwwn;
91 rport_attr->nwwn = rport->nwwn;
92 rport_attr->cos_supported = rport->fc_cos;
93 rport_attr->df_sz = rport->maxfrsize;
94 rport_attr->state = bfa_fcs_rport_get_state(rport);
95 rport_attr->fc_cos = rport->fc_cos;
96 rport_attr->cisc = rport->cisc;
97 rport_attr->scsi_function = rport->scsi_function;
98 rport_attr->curr_speed = rport->rpf.rpsc_speed;
99 rport_attr->assigned_speed = rport->rpf.assigned_speed;
100
101 bfa_rport_get_qos_attr(rport->bfa_rport, &qos_attr);
102 rport_attr->qos_attr = qos_attr;
103
104 rport_attr->trl_enforced = BFA_FALSE;
105 if (bfa_fcport_is_ratelim(port->fcs->bfa)) {
106 if ((rport->rpf.rpsc_speed == BFA_PPORT_SPEED_UNKNOWN) ||
107 (rport->rpf.rpsc_speed <
108 bfa_fcs_port_get_rport_max_speed(port)))
109 rport_attr->trl_enforced = BFA_TRUE;
110 }
111
112 /*
113 * TODO
114 * rport->symname
115 */
116}
117
118/**
119 * Per remote device statistics.
120 */
121void
122bfa_fcs_rport_get_stats(struct bfa_fcs_rport_s *rport,
123 struct bfa_rport_stats_s *stats)
124{
125 *stats = rport->stats;
126}
127
128void
129bfa_fcs_rport_clear_stats(struct bfa_fcs_rport_s *rport)
130{
131 bfa_os_memset((char *)&rport->stats, 0,
132 sizeof(struct bfa_rport_stats_s));
133}
134
135struct bfa_fcs_rport_s *
136bfa_fcs_rport_lookup(struct bfa_fcs_port_s *port, wwn_t rpwwn)
137{
138 struct bfa_fcs_rport_s *rport;
139
140 rport = bfa_fcs_port_get_rport_by_pwwn(port, rpwwn);
141 if (rport == NULL) {
142 /*
143 * TBD Error handling
144 */
145 }
146
147 return rport;
148}
149
150struct bfa_fcs_rport_s *
151bfa_fcs_rport_lookup_by_nwwn(struct bfa_fcs_port_s *port, wwn_t rnwwn)
152{
153 struct bfa_fcs_rport_s *rport;
154
155 rport = bfa_fcs_port_get_rport_by_nwwn(port, rnwwn);
156 if (rport == NULL) {
157 /*
158 * TBD Error handling
159 */
160 }
161
162 return rport;
163}
164
165/*
166 * This API is to set the Rport's speed. Should be used when RPSC is not
167 * supported by the rport.
168 */
169void
170bfa_fcs_rport_set_speed(struct bfa_fcs_rport_s *rport,
171 enum bfa_pport_speed speed)
172{
173 rport->rpf.assigned_speed = speed;
174
175 /* Set this speed in f/w only if the RPSC speed is not available */
176 if (rport->rpf.rpsc_speed == BFA_PPORT_SPEED_UNKNOWN)
177 bfa_rport_speed(rport->bfa_rport, speed);
178}
179
180