1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 #include "qls_os.h"
35 #include "qls_hw.h"
36 #include "qls_def.h"
37 #include "qls_inline.h"
38 #include "qls_glbl.h"
39 #include "qls_ioctl.h"
40 #include "qls_dump.h"
41 extern qls_mpi_coredump_t ql_mpi_coredump;
42
43 static int qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
44 struct thread *td);
45
46 static struct cdevsw qla_cdevsw = {
47 .d_version = D_VERSION,
48 .d_ioctl = qls_eioctl,
49 .d_name = "qlxge",
50 };
51
52 int
qls_make_cdev(qla_host_t * ha)53 qls_make_cdev(qla_host_t *ha)
54 {
55 ha->ioctl_dev = make_dev(&qla_cdevsw,
56 ha->ifp->if_dunit,
57 UID_ROOT,
58 GID_WHEEL,
59 0600,
60 "%s",
61 if_name(ha->ifp));
62
63 if (ha->ioctl_dev == NULL)
64 return (-1);
65
66 ha->ioctl_dev->si_drv1 = ha;
67
68 return (0);
69 }
70
71 void
qls_del_cdev(qla_host_t * ha)72 qls_del_cdev(qla_host_t *ha)
73 {
74 if (ha->ioctl_dev != NULL)
75 destroy_dev(ha->ioctl_dev);
76 return;
77 }
78
79 static int
qls_eioctl(struct cdev * dev,u_long cmd,caddr_t data,int fflag,struct thread * td)80 qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
81 struct thread *td)
82 {
83 qla_host_t *ha;
84 int rval = 0;
85 device_t pci_dev;
86
87 qls_mpi_dump_t *mpi_dump;
88
89 if ((ha = (qla_host_t *)dev->si_drv1) == NULL)
90 return ENXIO;
91
92 pci_dev= ha->pci_dev;
93
94 switch(cmd) {
95 case QLA_MPI_DUMP:
96 mpi_dump = (qls_mpi_dump_t *)data;
97
98 if (mpi_dump->size == 0) {
99 mpi_dump->size = sizeof (qls_mpi_coredump_t);
100 } else {
101 if ((mpi_dump->size != sizeof (qls_mpi_coredump_t)) ||
102 (mpi_dump->dbuf == NULL))
103 rval = EINVAL;
104 else {
105 if (qls_mpi_core_dump(ha) == 0) {
106 rval = copyout(&ql_mpi_coredump,
107 mpi_dump->dbuf,
108 mpi_dump->size);
109 } else
110 rval = ENXIO;
111
112 if (rval) {
113 device_printf(ha->pci_dev,
114 "%s: mpidump failed[%d]\n",
115 __func__, rval);
116 }
117 }
118 }
119
120 break;
121 default:
122 break;
123 }
124
125 return rval;
126 }
127