drivers/crypto/qat/qat_dh895xcc/qat_admin.c

   1 /*
   2   This file is provided under a dual BSD/GPLv2 license.  When using or
   3   redistributing this file, you may do so under either license.
   4
   5   GPL LICENSE SUMMARY
   6   Copyright(c) 2014 Intel Corporation.
   7   This program is free software; you can redistribute it and/or modify
   8   it under the terms of version 2 of the GNU General Public License as
   9   published by the Free Software Foundation.
  10
  11   This program is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14   General Public License for more details.
  15
  16   Contact Information:
  17   qat-linux@intel.com
  18
  19   BSD LICENSE
  20   Copyright(c) 2014 Intel Corporation.
  21   Redistribution and use in source and binary forms, with or without
  22   modification, are permitted provided that the following conditions
  23   are met:
  24
  25     * Redistributions of source code must retain the above copyright
  26       notice, this list of conditions and the following disclaimer.
  27     * Redistributions in binary form must reproduce the above copyright
  28       notice, this list of conditions and the following disclaimer in
  29       the documentation and/or other materials provided with the
  30       distribution.
  31     * Neither the name of Intel Corporation nor the names of its
  32       contributors may be used to endorse or promote products derived
  33       from this software without specific prior written permission.
  34
  35   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  36   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  37   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  38   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  39   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  41   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  42   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  43   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  44   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  45   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  46 */
  47 #include <icp_qat_fw_init_admin.h>
  48 #include <adf_accel_devices.h>
  49 #include <adf_common_drv.h>
  50 #include "adf_drv.h"
  51
  52 static struct service_hndl qat_admin;
  53
  54 static int qat_send_admin_cmd(struct adf_accel_dev *accel_dev, int cmd)
  55 {
  56         struct adf_hw_device_data *hw_device = accel_dev->hw_device;
  57         struct icp_qat_fw_init_admin_req req;
  58         struct icp_qat_fw_init_admin_resp resp;
  59         int i;
  60
  61         memset(&req, 0, sizeof(struct icp_qat_fw_init_admin_req));
  62         req.init_admin_cmd_id = cmd;
  63         for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
  64                 memset(&resp, 0, sizeof(struct icp_qat_fw_init_admin_resp));
  65                 if (adf_put_admin_msg_sync(accel_dev, i, &req, &resp) ||
  66                     resp.init_resp_hdr.status)
  67                         return -EFAULT;
  68         }
  69         return 0;
  70 }
  71
  72 static int qat_admin_start(struct adf_accel_dev *accel_dev)
  73 {
  74         return qat_send_admin_cmd(accel_dev, ICP_QAT_FW_INIT_ME);
  75 }
  76
  77 static int qat_admin_event_handler(struct adf_accel_dev *accel_dev,
  78                                    enum adf_event event)
  79 {
  80         int ret;
  81
  82         switch (event) {
  83         case ADF_EVENT_START:
  84                 ret = qat_admin_start(accel_dev);
  85                 break;
  86         case ADF_EVENT_STOP:
  87         case ADF_EVENT_INIT:
  88         case ADF_EVENT_SHUTDOWN:
  89         default:
  90                 ret = 0;
  91         }
  92         return ret;
  93 }
  94
  95 int qat_admin_register(void)
  96 {
  97         memset(&qat_admin, 0, sizeof(struct service_hndl));
  98         qat_admin.event_hld = qat_admin_event_handler;
  99         qat_admin.name = "qat_admin";
 100         qat_admin.admin = 1;
 101         return adf_service_register(&qat_admin);
 102 }
 103
 104 int qat_admin_unregister(void)
 105 {
 106         return adf_service_unregister(&qat_admin);
 107 }