qls_ioctl.c

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    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("$FreeBSD$");
   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"
   42 extern qls_mpi_coredump_t ql_mpi_coredump;
   43 
   44 static int qls_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
   45                 struct thread *td);
   46 
   47 static struct cdevsw qla_cdevsw = {
   48         .d_version = D_VERSION,
   49         .d_ioctl = qls_eioctl,
   50         .d_name = "qlxge",
   51 };
   52 
   53 int
   54 qls_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 
   72 void
   73 qls_del_cdev(qla_host_t *ha)
   74 {
   75         if (ha->ioctl_dev != NULL)
   76                 destroy_dev(ha->ioctl_dev);
   77         return;
   78 }
   79 
   80 static int
   81 qls_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

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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