forked from Minki/linux
25c6ffb249
Before VF sends a signal to PF it should check if PF is still running. Tested-by: Suman Bangalore Sathyanarayana <sumanx.bangalore.sathyanarayana@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/*
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This file is provided under a dual BSD/GPLv2 license. When using or
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redistributing this file, you may do so under either license.
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GPL LICENSE SUMMARY
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Copyright(c) 2015 Intel Corporation.
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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Contact Information:
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qat-linux@intel.com
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BSD LICENSE
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Copyright(c) 2015 Intel Corporation.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "adf_accel_devices.h"
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#include "adf_common_drv.h"
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#include "adf_pf2vf_msg.h"
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/**
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* adf_vf2pf_init() - send init msg to PF
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* @accel_dev: Pointer to acceleration VF device.
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*
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* Function sends an init messge from the VF to a PF
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*
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* Return: 0 on success, error code otherwise.
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*/
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int adf_vf2pf_init(struct adf_accel_dev *accel_dev)
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{
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u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM |
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(ADF_VF2PF_MSGTYPE_INIT << ADF_VF2PF_MSGTYPE_SHIFT));
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if (adf_iov_putmsg(accel_dev, msg, 0)) {
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dev_err(&GET_DEV(accel_dev),
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"Failed to send Init event to PF\n");
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return -EFAULT;
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}
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set_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status);
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return 0;
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}
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EXPORT_SYMBOL_GPL(adf_vf2pf_init);
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/**
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* adf_vf2pf_shutdown() - send shutdown msg to PF
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* @accel_dev: Pointer to acceleration VF device.
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*
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* Function sends a shutdown messge from the VF to a PF
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*
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* Return: void
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*/
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void adf_vf2pf_shutdown(struct adf_accel_dev *accel_dev)
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{
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u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM |
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(ADF_VF2PF_MSGTYPE_SHUTDOWN << ADF_VF2PF_MSGTYPE_SHIFT));
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if (test_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status))
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if (adf_iov_putmsg(accel_dev, msg, 0))
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dev_err(&GET_DEV(accel_dev),
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"Failed to send Shutdown event to PF\n");
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}
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EXPORT_SYMBOL_GPL(adf_vf2pf_shutdown);
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