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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2023 Advanced Micro Devices, Inc. */
#include <linux/io.h>
#include <linux/types.h>
#include <linux/pds/pds_common.h>
#include <linux/pds/pds_core_if.h>
#include <linux/pds/pds_adminq.h>
#include "vfio_dev.h"
#include "cmds.h"
int pds_vfio_register_client_cmd(struct pds_vfio_pci_device *pds_vfio)
{
struct pci_dev *pdev = pds_vfio_to_pci_dev(pds_vfio);
char devname[PDS_DEVNAME_LEN];
struct pdsc *pdsc;
int ci;
snprintf(devname, sizeof(devname), "%s.%d-%u", PDS_VFIO_LM_DEV_NAME,
pci_domain_nr(pdev->bus),
PCI_DEVID(pdev->bus->number, pdev->devfn));
pdsc = pdsc_get_pf_struct(pdev);
if (IS_ERR(pdsc))
return PTR_ERR(pdsc);
ci = pds_client_register(pdsc, devname);
if (ci < 0)
return ci;
pds_vfio->client_id = ci;
return 0;
}
void pds_vfio_unregister_client_cmd(struct pds_vfio_pci_device *pds_vfio)
{
struct pci_dev *pdev = pds_vfio_to_pci_dev(pds_vfio);
struct pdsc *pdsc;
int err;
pdsc = pdsc_get_pf_struct(pdev);
if (IS_ERR(pdsc))
return;
err = pds_client_unregister(pdsc, pds_vfio->client_id);
if (err)
dev_err(&pdev->dev, "unregister from DSC failed: %pe\n",
ERR_PTR(err));
pds_vfio->client_id = 0;
}
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