/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2024 Intel Corporation
*/
#ifndef _XE_GT_SRIOV_PF_CONTROL_TYPES_H_
#define _XE_GT_SRIOV_PF_CONTROL_TYPES_H_
#include <linux/completion.h>
#include <linux/spinlock.h>
#include <linux/workqueue_types.h>
/**
* enum xe_gt_sriov_control_bits - Various bits used by the PF to represent a VF state
*
* @XE_GT_SRIOV_STATE_WIP: indicates that some operations are in progress.
* @XE_GT_SRIOV_STATE_FLR_WIP: indicates that a VF FLR is in progress.
* @XE_GT_SRIOV_STATE_FLR_SEND_START: indicates that the PF wants to send a FLR START command.
* @XE_GT_SRIOV_STATE_FLR_WAIT_GUC: indicates that the PF awaits for a response from the GuC.
* @XE_GT_SRIOV_STATE_FLR_GUC_DONE: indicates that the PF has received a response from the GuC.
* @XE_GT_SRIOV_STATE_FLR_RESET_CONFIG: indicates that the PF needs to clear VF's resources.
* @XE_GT_SRIOV_STATE_FLR_RESET_DATA: indicates that the PF needs to clear VF's data.
* @XE_GT_SRIOV_STATE_FLR_RESET_MMIO: indicates that the PF needs to reset VF's registers.
* @XE_GT_SRIOV_STATE_FLR_SEND_FINISH: indicates that the PF wants to send a FLR FINISH message.
* @XE_GT_SRIOV_STATE_FLR_FAILED: indicates that VF FLR sequence failed.
* @XE_GT_SRIOV_STATE_PAUSE_WIP: indicates that a VF pause operation is in progress.
* @XE_GT_SRIOV_STATE_PAUSE_SEND_PAUSE: indicates that the PF is about to send a PAUSE command.
* @XE_GT_SRIOV_STATE_PAUSE_WAIT_GUC: indicates that the PF awaits for a response from the GuC.
* @XE_GT_SRIOV_STATE_PAUSE_GUC_DONE: indicates that the PF has received a response from the GuC.
* @XE_GT_SRIOV_STATE_PAUSE_FAILED: indicates that a VF pause operation has failed.
* @XE_GT_SRIOV_STATE_PAUSED: indicates that the VF is paused.
* @XE_GT_SRIOV_STATE_RESUME_WIP: indicates the a VF resume operation is in progress.
* @XE_GT_SRIOV_STATE_RESUME_SEND_RESUME: indicates that the PF is about to send RESUME command.
* @XE_GT_SRIOV_STATE_RESUME_FAILED: indicates that a VF resume operation has failed.
* @XE_GT_SRIOV_STATE_RESUMED: indicates that the VF was resumed.
* @XE_GT_SRIOV_STATE_STOP_WIP: indicates that a VF stop operation is in progress.
* @XE_GT_SRIOV_STATE_STOP_SEND_STOP: indicates that the PF wants to send a STOP command.
* @XE_GT_SRIOV_STATE_STOP_FAILED: indicates that the VF stop operation has failed
* @XE_GT_SRIOV_STATE_STOPPED: indicates that the VF was stopped.
* @XE_GT_SRIOV_STATE_MISMATCH: indicates that the PF has detected a VF state mismatch.
*/
enum xe_gt_sriov_control_bits {
XE_GT_SRIOV_STATE_WIP = 1,
XE_GT_SRIOV_STATE_FLR_WIP,
XE_GT_SRIOV_STATE_FLR_SEND_START,
XE_GT_SRIOV_STATE_FLR_WAIT_GUC,
XE_GT_SRIOV_STATE_FLR_GUC_DONE,
XE_GT_SRIOV_STATE_FLR_RESET_CONFIG,
XE_GT_SRIOV_STATE_FLR_RESET_DATA,
XE_GT_SRIOV_STATE_FLR_RESET_MMIO,
XE_GT_SRIOV_STATE_FLR_SEND_FINISH,
XE_GT_SRIOV_STATE_FLR_FAILED,
XE_GT_SRIOV_STATE_PAUSE_WIP,
XE_GT_SRIOV_STATE_PAUSE_SEND_PAUSE,
XE_GT_SRIOV_STATE_PAUSE_WAIT_GUC,
XE_GT_SRIOV_STATE_PAUSE_GUC_DONE,
XE_GT_SRIOV_STATE_PAUSE_FAILED,
XE_GT_SRIOV_STATE_PAUSED,
XE_GT_SRIOV_STATE_RESUME_WIP,
XE_GT_SRIOV_STATE_RESUME_SEND_RESUME,
XE_GT_SRIOV_STATE_RESUME_FAILED,
XE_GT_SRIOV_STATE_RESUMED,
XE_GT_SRIOV_STATE_STOP_WIP,
XE_GT_SRIOV_STATE_STOP_SEND_STOP,
XE_GT_SRIOV_STATE_STOP_FAILED,
XE_GT_SRIOV_STATE_STOPPED,
XE_GT_SRIOV_STATE_MISMATCH = BITS_PER_LONG - 1,
};
/**
* struct xe_gt_sriov_control_state - GT-level per-VF control state.
*
* Used by the PF driver to maintain per-VF control data.
*/
struct xe_gt_sriov_control_state {
/** @state: VF state bits */
unsigned long state;
/** @done: completion of async operations */
struct completion done;
/** @link: link into worker list */
struct list_head link;
};
/**
* struct xe_gt_sriov_pf_control - GT-level control data.
*
* Used by the PF driver to maintain its data.
*/
struct xe_gt_sriov_pf_control {
/** @worker: worker that executes a VF operations */
struct work_struct worker;
/** @list: list of VF entries that have a pending work */
struct list_head list;
/** @lock: protects VF pending list */
spinlock_t lock;
};
#endif
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