1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2013-2014 Qlogic Corporation
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29 /*
30 * File: qls_ioctl.c
31 * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
32 */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35
36 #include "qls_os.h"
37 #include "qls_hw.h"
38 #include "qls_def.h"
39 #include "qls_inline.h"
40 #include "qls_glbl.h"
41 #include "qls_ioctl.h"
42 #include "qls_dump.h"
43 extern qls_mpi_coredump_t ql_mpi_coredump;
44
45 static int qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
46 struct thread *td);
47
48 static struct cdevsw qla_cdevsw = {
49 .d_version = D_VERSION,
50 .d_ioctl = qls_eioctl,
51 .d_name = "qlxge",
52 };
53
54 int
55 qls_make_cdev(qla_host_t *ha)
56 {
57 ha->ioctl_dev = make_dev(&qla_cdevsw,
58 ha->ifp->if_dunit,
59 UID_ROOT,
60 GID_WHEEL,
61 0600,
62 "%s",
63 if_name(ha->ifp));
64
65 if (ha->ioctl_dev == NULL)
66 return (-1);
67
68 ha->ioctl_dev->si_drv1 = ha;
69
70 return (0);
71 }
72
73 void
74 qls_del_cdev(qla_host_t *ha)
75 {
76 if (ha->ioctl_dev != NULL)
77 destroy_dev(ha->ioctl_dev);
78 return;
79 }
80
81 static int
82 qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
83 struct thread *td)
84 {
85 qla_host_t *ha;
86 int rval = 0;
87
88 qls_mpi_dump_t *mpi_dump;
89
90 if ((ha = (qla_host_t *)dev->si_drv1) == NULL)
91 return ENXIO;
92
93 switch(cmd) {
94 case QLA_MPI_DUMP:
95 mpi_dump = (qls_mpi_dump_t *)data;
96
97 if (mpi_dump->size == 0) {
98 mpi_dump->size = sizeof (qls_mpi_coredump_t);
99 } else {
100 if ((mpi_dump->size != sizeof (qls_mpi_coredump_t)) ||
101 (mpi_dump->dbuf == NULL))
102 rval = EINVAL;
103 else {
104 if (qls_mpi_core_dump(ha) == 0) {
105 rval = copyout(&ql_mpi_coredump,
106 mpi_dump->dbuf,
107 mpi_dump->size);
108 } else
109 rval = ENXIO;
110
111 if (rval) {
112 device_printf(ha->pci_dev,
113 "%s: mpidump failed[%d]\n",
114 __func__, rval);
115 }
116 }
117 }
118
119 break;
120 default:
121 break;
122 }
123
124 return rval;
125 }
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