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Migration data is queued in a per-GT ptr_ring to decouple the worker responsible for handling the data transfer from the .read() and .write() syscalls. Add the data structures and handlers that will be used in future commits. Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://patch.msgid.link/20251112132220.516975-6-michal.winiarski@intel.com Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
44 lines
1.8 KiB
C
44 lines
1.8 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2023-2024 Intel Corporation
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*/
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#ifndef _XE_GT_SRIOV_PF_CONTROL_H_
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#define _XE_GT_SRIOV_PF_CONTROL_H_
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#include <linux/errno.h>
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#include <linux/types.h>
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struct xe_gt;
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int xe_gt_sriov_pf_control_init(struct xe_gt *gt);
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void xe_gt_sriov_pf_control_restart(struct xe_gt *gt);
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int xe_gt_sriov_pf_control_pause_vf(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_resume_vf(struct xe_gt *gt, unsigned int vfid);
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bool xe_gt_sriov_pf_control_check_save_data_done(struct xe_gt *gt, unsigned int vfid);
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bool xe_gt_sriov_pf_control_check_save_failed(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_process_save_data(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_trigger_save_vf(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_finish_save_vf(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_restore_data_done(struct xe_gt *gt, unsigned int vfid);
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bool xe_gt_sriov_pf_control_check_restore_failed(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_process_restore_data(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_trigger_restore_vf(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_finish_restore_vf(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_stop_vf(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_trigger_flr(struct xe_gt *gt, unsigned int vfid);
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int xe_gt_sriov_pf_control_sync_flr(struct xe_gt *gt, unsigned int vfid, bool sync);
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int xe_gt_sriov_pf_control_wait_flr(struct xe_gt *gt, unsigned int vfid);
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#ifdef CONFIG_PCI_IOV
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int xe_gt_sriov_pf_control_process_guc2pf(struct xe_gt *gt, const u32 *msg, u32 len);
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#else
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static inline int xe_gt_sriov_pf_control_process_guc2pf(struct xe_gt *gt, const u32 *msg, u32 len)
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{
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return -EPROTO;
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}
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#endif
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#endif
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