qls_ioctl.c revision 331722 
1/*
2 * Copyright (c) 2013-2014 Qlogic Corporation
3 * All rights reserved.
4 *
5 *  Redistribution and use in source and binary forms, with or without
6 *  modification, are permitted provided that the following conditions
7 *  are met:
8 *
9 *  1. Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 *  2. Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
15 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 *  POSSIBILITY OF SUCH DAMAGE.
26 */
27/*
28 * File: qls_ioctl.c
29 * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
30 */
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: stable/11/sys/dev/qlxge/qls_ioctl.c 331722 2018-03-29 02:50:57Z eadler $");
33
34
35#include "qls_os.h"
36#include "qls_hw.h"
37#include "qls_def.h"
38#include "qls_inline.h"
39#include "qls_glbl.h"
40#include "qls_ioctl.h"
41#include "qls_dump.h"
42extern qls_mpi_coredump_t ql_mpi_coredump;
43
44static int qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
45		struct thread *td);
46
47static struct cdevsw qla_cdevsw = {
48	.d_version = D_VERSION,
49	.d_ioctl = qls_eioctl,
50	.d_name = "qlxge",
51};
52
53int
54qls_make_cdev(qla_host_t *ha)
55{
56        ha->ioctl_dev = make_dev(&qla_cdevsw,
57				ha->ifp->if_dunit,
58                                UID_ROOT,
59                                GID_WHEEL,
60                                0600,
61                                "%s",
62                                if_name(ha->ifp));
63
64	if (ha->ioctl_dev == NULL)
65		return (-1);
66
67        ha->ioctl_dev->si_drv1 = ha;
68
69	return (0);
70}
71
72void
73qls_del_cdev(qla_host_t *ha)
74{
75	if (ha->ioctl_dev != NULL)
76		destroy_dev(ha->ioctl_dev);
77	return;
78}
79
80static int
81qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
82        struct thread *td)
83{
84        qla_host_t *ha;
85        int rval = 0;
86	device_t pci_dev;
87
88	qls_mpi_dump_t *mpi_dump;
89
90        if ((ha = (qla_host_t *)dev->si_drv1) == NULL)
91                return ENXIO;
92
93	pci_dev= ha->pci_dev;
94
95        switch(cmd) {
96
97	case QLA_MPI_DUMP:
98		mpi_dump = (qls_mpi_dump_t *)data;
99
100		if (mpi_dump->size == 0) {
101			mpi_dump->size = sizeof (qls_mpi_coredump_t);
102		} else {
103			if ((mpi_dump->size != sizeof (qls_mpi_coredump_t)) ||
104				(mpi_dump->dbuf == NULL))
105				rval = EINVAL;
106			else {
107				if (qls_mpi_core_dump(ha) == 0) {
108					rval = copyout(&ql_mpi_coredump,
109							mpi_dump->dbuf,
110							mpi_dump->size);
111				} else
112					rval = ENXIO;
113
114				if (rval) {
115					device_printf(ha->pci_dev,
116						"%s: mpidump failed[%d]\n",
117						__func__, rval);
118				}
119			}
120
121		}
122
123		break;
124        default:
125                break;
126        }
127
128        return rval;
129}
130
131