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drm/xe/pf: Automatically provision VFs only in auto-mode

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We shouldn't attempt to auto-provision VFs once we allow other
provisioning methods. Make the code aware of the new condition.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://lore.kernel.org/r/20251015091211.592-3-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2025-10-15 11:12:07 +02:00
parent a5efeaf8a1
commit 5546bc2071
3 changed files with 51 additions and 1 deletions
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16
drivers/gpu/drm/xe/xe_sriov_pf_provision.c
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@ -9,6 +9,14 @@
#include "xe_sriov.h"
#include "xe_sriov_pf_helpers.h"
#include "xe_sriov_pf_provision.h"
#include "xe_sriov_pf_provision_types.h"
static bool pf_auto_provisioning_mode(struct xe_device *xe)
{
xe_assert(xe, IS_SRIOV_PF(xe));
return xe->sriov.pf.provision.mode == XE_SRIOV_PROVISIONING_MODE_AUTO;
}
static bool pf_needs_provisioning(struct xe_gt *gt, unsigned int num_vfs)
{
@ -30,7 +38,7 @@ static int pf_provision_vfs(struct xe_device *xe, unsigned int num_vfs)
for_each_gt(gt, xe, id) {
if (!pf_needs_provisioning(gt, num_vfs))
continue;
return -EUCLEAN;
err = xe_gt_sriov_pf_config_set_fair(gt, VFID(1), num_vfs);
result = result ?: err;
}
@ -62,6 +70,9 @@ int xe_sriov_pf_provision_vfs(struct xe_device *xe, unsigned int num_vfs)
{
xe_assert(xe, IS_SRIOV_PF(xe));
if (!pf_auto_provisioning_mode(xe))
return 0;
return pf_provision_vfs(xe, num_vfs);
}
@ -78,6 +89,9 @@ int xe_sriov_pf_unprovision_vfs(struct xe_device *xe, unsigned int num_vfs)
{
xe_assert(xe, IS_SRIOV_PF(xe));
if (!pf_auto_provisioning_mode(xe))
return 0;
pf_unprovision_vfs(xe, num_vfs);
return 0;
}

32
drivers/gpu/drm/xe/xe_sriov_pf_provision_types.h Normal file
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@ -0,0 +1,32 @@
/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2025 Intel Corporation
*/
#ifndef _XE_SRIOV_PF_PROVISION_TYPES_H_
#define _XE_SRIOV_PF_PROVISION_TYPES_H_
#include <linux/build_bug.h>
/**
* enum xe_sriov_provisioning_mode - SR-IOV provisioning mode.
*
* @XE_SRIOV_PROVISIONING_MODE_AUTO: VFs are provisioned during VFs enabling.
* Any allocated resources to the VFs will be
* automatically released when disabling VFs.
* This is a default mode.
*/
enum xe_sriov_provisioning_mode {
XE_SRIOV_PROVISIONING_MODE_AUTO,
};
static_assert(XE_SRIOV_PROVISIONING_MODE_AUTO == 0);
/**
* struct xe_sriov_pf_provision - Data used by the PF provisioning.
*/
struct xe_sriov_pf_provision {
/** @mode: selected provisioning mode. */
enum xe_sriov_provisioning_mode mode;
};
#endif

4
drivers/gpu/drm/xe/xe_sriov_pf_types.h
View File

@ -9,6 +9,7 @@
#include <linux/mutex.h>
#include <linux/types.h>
#include "xe_sriov_pf_provision_types.h"
#include "xe_sriov_pf_service_types.h"
/**
@ -35,6 +36,9 @@ struct xe_device_pf {
/** @master_lock: protects all VFs configurations across GTs */
struct mutex master_lock;
/** @provision: device level provisioning data. */
struct xe_sriov_pf_provision provision;
/** @service: device level service data. */
struct xe_sriov_pf_service service;