sys/dev/qlxgb/qla_ioctl.c

   1 /*
   2  * Copyright (c) 2010-2011 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: qla_ioctl.c
  29  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __FBSDID("$FreeBSD$");
  34
  35 #include "qla_os.h"
  36 #include "qla_reg.h"
  37 #include "qla_hw.h"
  38 #include "qla_def.h"
  39 #include "qla_reg.h"
  40 #include "qla_inline.h"
  41 #include "qla_glbl.h"
  42 #include "qla_ioctl.h"
  43
  44 static struct cdevsw qla_cdevsw = {
  45         .d_version = D_VERSION,
  46         .d_ioctl = qla_eioctl,
  47         .d_name = "qlcnic",
  48 };
  49
  50 int
  51 qla_make_cdev(qla_host_t *ha)
  52 {
  53         ha->ioctl_dev = make_dev(&qla_cdevsw,
  54                                 ha->ifp->if_dunit,
  55                                 UID_ROOT,
  56                                 GID_WHEEL,
  57                                 0600,
  58                                 "%s",
  59                                 if_name(ha->ifp));
  60
  61         if (ha->ioctl_dev == NULL)
  62                 return (-1);
  63
  64         ha->ioctl_dev->si_drv1 = ha;
  65
  66         return (0);
  67 }
  68
  69 void
  70 qla_del_cdev(qla_host_t *ha)
  71 {
  72         if (ha->ioctl_dev != NULL)
  73                 destroy_dev(ha->ioctl_dev);
  74         return;
  75 }
  76
  77 int
  78 qla_eioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
  79         struct thread *td)
  80 {
  81         qla_host_t *ha;
  82         int rval = 0;
  83         qla_reg_val_t *rv;
  84         qla_rd_flash_t *rdf;
  85
  86         if ((ha = (qla_host_t *)dev->si_drv1) == NULL)
  87                 return ENXIO;
  88
  89         switch(cmd) {
  90
  91         case QLA_RDWR_REG:
  92
  93                 rv = (qla_reg_val_t *)data;
  94
  95                 if (rv->direct) {
  96                         if (rv->rd) {
  97                                 rv->val = READ_OFFSET32(ha, rv->reg);
  98                         } else {
  99                                 WRITE_OFFSET32(ha, rv->reg, rv->val);
 100                         }
 101                 } else {
 102                         if ((rval = qla_rdwr_indreg32(ha, rv->reg, &rv->val,
 103                                 rv->rd)))
 104                                 rval = ENXIO;
 105                 }
 106                 break;
 107
 108         case QLA_RD_FLASH:
 109                 rdf = (qla_rd_flash_t *)data;
 110                 if ((rval = qla_rd_flash32(ha, rdf->off, &rdf->data)))
 111                         rval = ENXIO;
 112                 break;
 113         default:
 114                 break;
 115         }
 116
 117         return rval;
 118 }
 119