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("$FreeBSD$");
   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         device_t pci_dev;
   88 
   89         qls_mpi_dump_t *mpi_dump;
   90 
   91         if ((ha = (qla_host_t *)dev->si_drv1) == NULL)
   92                 return ENXIO;
   93 
   94         pci_dev= ha->pci_dev;
   95 
   96         switch(cmd) {
   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                 break;
  123         default:
  124                 break;
  125         }
  126 
  127         return rval;
  128 }

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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