1 // SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) 2 /* Copyright(c) 2015 - 2020 Intel Corporation */ 3 #include "adf_accel_devices.h" 4 #include "adf_common_drv.h" 5 #include "adf_pf2vf_msg.h" 6 7 /** 8 * adf_vf2pf_notify_init() - send init msg to PF 9 * @accel_dev: Pointer to acceleration VF device. 10 * 11 * Function sends an init message from the VF to a PF 12 * 13 * Return: 0 on success, error code otherwise. 14 */ adf_vf2pf_notify_init(struct adf_accel_dev * accel_dev)15int adf_vf2pf_notify_init(struct adf_accel_dev *accel_dev) 16 { 17 u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM | 18 (ADF_VF2PF_MSGTYPE_INIT << ADF_VF2PF_MSGTYPE_SHIFT)); 19 20 if (adf_send_vf2pf_msg(accel_dev, msg)) { 21 dev_err(&GET_DEV(accel_dev), 22 "Failed to send Init event to PF\n"); 23 return -EFAULT; 24 } 25 set_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status); 26 return 0; 27 } 28 EXPORT_SYMBOL_GPL(adf_vf2pf_notify_init); 29 30 /** 31 * adf_vf2pf_notify_shutdown() - send shutdown msg to PF 32 * @accel_dev: Pointer to acceleration VF device. 33 * 34 * Function sends a shutdown message from the VF to a PF 35 * 36 * Return: void 37 */ adf_vf2pf_notify_shutdown(struct adf_accel_dev * accel_dev)38void adf_vf2pf_notify_shutdown(struct adf_accel_dev *accel_dev) 39 { 40 u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM | 41 (ADF_VF2PF_MSGTYPE_SHUTDOWN << ADF_VF2PF_MSGTYPE_SHIFT)); 42 43 if (test_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status)) 44 if (adf_send_vf2pf_msg(accel_dev, msg)) 45 dev_err(&GET_DEV(accel_dev), 46 "Failed to send Shutdown event to PF\n"); 47 } 48 EXPORT_SYMBOL_GPL(adf_vf2pf_notify_shutdown); 49