qls_ioctl.c

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    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: releng/12.0/sys/dev/qlxge/qls_ioctl.c 326255 2017-11-27 14:52:40Z pfg $");
   35 
   36 
   37 #include "qls_os.h"
   38 #include "qls_hw.h"
   39 #include "qls_def.h"
   40 #include "qls_inline.h"
   41 #include "qls_glbl.h"
   42 #include "qls_ioctl.h"
   43 #include "qls_dump.h"
   44 extern qls_mpi_coredump_t ql_mpi_coredump;
   45 
   46 static int qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
   47                 struct thread *td);
   48 
   49 static struct cdevsw qla_cdevsw = {
   50         .d_version = D_VERSION,
   51         .d_ioctl = qls_eioctl,
   52         .d_name = "qlxge",
   53 };
   54 
   55 int
   56 qls_make_cdev(qla_host_t *ha)
   57 {
   58         ha->ioctl_dev = make_dev(&qla_cdevsw,
   59                                 ha->ifp->if_dunit,
   60                                 UID_ROOT,
   61                                 GID_WHEEL,
   62                                 0600,
   63                                 "%s",
   64                                 if_name(ha->ifp));
   65 
   66         if (ha->ioctl_dev == NULL)
   67                 return (-1);
   68 
   69         ha->ioctl_dev->si_drv1 = ha;
   70 
   71         return (0);
   72 }
   73 
   74 void
   75 qls_del_cdev(qla_host_t *ha)
   76 {
   77         if (ha->ioctl_dev != NULL)
   78                 destroy_dev(ha->ioctl_dev);
   79         return;
   80 }
   81 
   82 static int
   83 qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
   84         struct thread *td)
   85 {
   86         qla_host_t *ha;
   87         int rval = 0;
   88         device_t pci_dev;
   89 
   90         qls_mpi_dump_t *mpi_dump;
   91 
   92         if ((ha = (qla_host_t *)dev->si_drv1) == NULL)
   93                 return ENXIO;
   94 
   95         pci_dev= ha->pci_dev;
   96 
   97         switch(cmd) {
   98 
   99         case QLA_MPI_DUMP:
  100                 mpi_dump = (qls_mpi_dump_t *)data;
  101 
  102                 if (mpi_dump->size == 0) {
  103                         mpi_dump->size = sizeof (qls_mpi_coredump_t);
  104                 } else {
  105                         if ((mpi_dump->size != sizeof (qls_mpi_coredump_t)) ||
  106                                 (mpi_dump->dbuf == NULL))
  107                                 rval = EINVAL;
  108                         else {
  109                                 if (qls_mpi_core_dump(ha) == 0) {
  110                                         rval = copyout(&ql_mpi_coredump,
  111                                                         mpi_dump->dbuf,
  112                                                         mpi_dump->size);
  113                                 } else 
  114                                         rval = ENXIO;
  115 
  116                                 if (rval) {
  117                                         device_printf(ha->pci_dev,
  118                                                 "%s: mpidump failed[%d]\n",
  119                                                 __func__, rval);
  120                                 }
  121                         }
  122 
  123                 }
  124                 
  125                 break;
  126         default:
  127                 break;
  128         }
  129 
  130         return rval;
  131 }
  132

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FreeBSD/Linux Kernel Cross Reference sys/dev/qlxge/qls_ioctl.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/qlxge/qls_ioctl.c