Tadeusz Struk | 02dc8d6 | 2016-04-15 10:37:58 -0700 | [diff] [blame] | 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) 2015 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) 2015 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 "adf_accel_devices.h" |
| 48 | #include "adf_common_drv.h" |
| 49 | #include "adf_pf2vf_msg.h" |
| 50 | |
| 51 | /** |
| 52 | * adf_vf2pf_init() - send init msg to PF |
| 53 | * @accel_dev: Pointer to acceleration VF device. |
| 54 | * |
| 55 | * Function sends an init messge from the VF to a PF |
| 56 | * |
| 57 | * Return: 0 on success, error code otherwise. |
| 58 | */ |
| 59 | int adf_vf2pf_init(struct adf_accel_dev *accel_dev) |
| 60 | { |
| 61 | u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM | |
| 62 | (ADF_VF2PF_MSGTYPE_INIT << ADF_VF2PF_MSGTYPE_SHIFT)); |
| 63 | |
| 64 | if (adf_iov_putmsg(accel_dev, msg, 0)) { |
| 65 | dev_err(&GET_DEV(accel_dev), |
| 66 | "Failed to send Init event to PF\n"); |
| 67 | return -EFAULT; |
| 68 | } |
Tadeusz Struk | 25c6ffb | 2016-04-15 10:37:59 -0700 | [diff] [blame] | 69 | set_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status); |
Tadeusz Struk | 02dc8d6 | 2016-04-15 10:37:58 -0700 | [diff] [blame] | 70 | return 0; |
| 71 | } |
| 72 | EXPORT_SYMBOL_GPL(adf_vf2pf_init); |
| 73 | |
| 74 | /** |
| 75 | * adf_vf2pf_shutdown() - send shutdown msg to PF |
| 76 | * @accel_dev: Pointer to acceleration VF device. |
| 77 | * |
| 78 | * Function sends a shutdown messge from the VF to a PF |
| 79 | * |
| 80 | * Return: void |
| 81 | */ |
| 82 | void adf_vf2pf_shutdown(struct adf_accel_dev *accel_dev) |
| 83 | { |
| 84 | u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM | |
| 85 | (ADF_VF2PF_MSGTYPE_SHUTDOWN << ADF_VF2PF_MSGTYPE_SHIFT)); |
| 86 | |
Tadeusz Struk | 25c6ffb | 2016-04-15 10:37:59 -0700 | [diff] [blame] | 87 | if (test_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status)) |
| 88 | if (adf_iov_putmsg(accel_dev, msg, 0)) |
| 89 | dev_err(&GET_DEV(accel_dev), |
| 90 | "Failed to send Shutdown event to PF\n"); |
Tadeusz Struk | 02dc8d6 | 2016-04-15 10:37:58 -0700 | [diff] [blame] | 91 | } |
| 92 | EXPORT_SYMBOL_GPL(adf_vf2pf_shutdown); |