linux/drivers/gpu/drm/xe/xe_gt_sriov_pf_monitor.c

// SPDX-License-Identifier: MIT
/*
 * Copyright © 2023-2024 Intel Corporation
 */

#include "abi/guc_actions_sriov_abi.h"
#include "abi/guc_messages_abi.h"

#include "xe_gt_sriov_pf_config.h"
#include "xe_gt_sriov_pf_helpers.h"
#include "xe_gt_sriov_pf_monitor.h"
#include "xe_gt_sriov_printk.h"
#include "xe_guc_klv_helpers.h"
#include "xe_guc_klv_thresholds_set.h"

/**
 * xe_gt_sriov_pf_monitor_flr - Cleanup VF data after VF FLR.
 * @gt: the &xe_gt
 * @vfid: the VF identifier
 *
 * On FLR this function will reset all event data related to the VF.
 * This function is for PF only.
 */
void xe_gt_sriov_pf_monitor_flr(struct xe_gt *gt, u32 vfid)
{ … }

static void pf_update_event_counter(struct xe_gt *gt, u32 vfid,
				    enum xe_guc_klv_threshold_index e)
{ … }

static int pf_handle_vf_threshold_event(struct xe_gt *gt, u32 vfid, u32 threshold)
{ … }

/**
 * xe_gt_sriov_pf_monitor_process_guc2pf - Handle adverse event notification from the GuC.
 * @gt: the &xe_gt
 * @msg: G2H event message
 * @len: length of the message
 *
 * This function is intended for PF only.
 *
 * Return: 0 on success or a negative error code on failure.
 */
int xe_gt_sriov_pf_monitor_process_guc2pf(struct xe_gt *gt, const u32 *msg, u32 len)
{ … }

/**
 * xe_gt_sriov_pf_monitor_print_events - Print adverse events counters.
 * @gt: the &xe_gt to print events from
 * @p: the &drm_printer
 *
 * Print adverse events counters for all VFs.
 * VFs with no events are not printed.
 *
 * This function can only be called on PF.
 */
void xe_gt_sriov_pf_monitor_print_events(struct xe_gt *gt, struct drm_printer *p)
{ … }