[PATCH 05/26] drm/xe/pf: Add data structures and handlers for migration rings

Michał Winiarski
2025-10-11T19:40:40Z

Migration data is queued in a per-GT ptr_ring to decouple the worker
responsible for handling the data transfer from the .read()/.write()
syscalls.
Add the data structures and handlers that will be used in future
commits.

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
---
drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c | 4 +
drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c | 163 ++++++++++++++++++
drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h | 9 +
.../drm/xe/xe_gt_sriov_pf_migration_types.h | 5 +-
drivers/gpu/drm/xe/xe_gt_sriov_pf_types.h | 3 +
drivers/gpu/drm/xe/xe_sriov_pf_migration.c | 147 ++++++++++++++++
drivers/gpu/drm/xe/xe_sriov_pf_migration.h | 20 +++
.../gpu/drm/xe/xe_sriov_pf_migration_types.h | 37 ++++
drivers/gpu/drm/xe/xe_sriov_pf_types.h | 3 +
9 files changed, 390 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c
index 44df984278548..16a88e7599f6d 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c
@@ -19,6 +19,7 @@
#include "xe_guc_ct.h"
#include "xe_sriov.h"
#include "xe_sriov_pf_control.h"
+#include "xe_sriov_pf_migration.h"
#include "xe_sriov_pf_service.h"
#include "xe_tile.h"

@@ -388,6 +389,8 @@ static bool pf_enter_vf_wip(struct xe_gt *gt, unsigned int vfid)

static void pf_exit_vf_wip(struct xe_gt *gt, unsigned int vfid)
{
+ struct wait_queue_head *wq = xe_sriov_pf_migration_waitqueue(gt_to_xe(gt), vfid);
+
if (pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_WIP)) {
struct xe_gt_sriov_control_state *cs = pf_pick_vf_control(gt, vfid);

@@ -399,6 +402,7 @@ static void pf_exit_vf_wip(struct xe_gt *gt, unsigned int vfid)
pf_exit_vf_resume_wip(gt, vfid);

complete_all(&cs->done);
+ wake_up_all(wq);
}
}

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c
index f8604b172963e..af5952f42fff1 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c
@@ -7,6 +7,7 @@

#include "abi/guc_actions_sriov_abi.h"
#include "xe_bo.h"
+#include "xe_gt_sriov_pf_control.h"
#include "xe_gt_sriov_pf_helpers.h"
#include "xe_gt_sriov_pf_migration.h"
#include "xe_gt_sriov_printk.h"
@@ -15,6 +16,17 @@
#include "xe_sriov.h"
#include "xe_sriov_pf_migration.h"

+#define XE_GT_SRIOV_PF_MIGRATION_RING_TIMEOUT (HZ * 20)
+#define XE_GT_SRIOV_PF_MIGRATION_RING_SIZE 5
+
+static struct xe_gt_sriov_pf_migration *pf_pick_gt_migration(struct xe_gt *gt, unsigned int vfid)
+{
+ xe_gt_assert(gt, IS_SRIOV_PF(gt_to_xe(gt)));
+ xe_gt_assert(gt, vfid <= xe_sriov_pf_get_totalvfs(gt_to_xe(gt)));
+
+ return &gt->sriov.pf.vfs[vfid].migration;
+}
+
/* Return: number of dwords saved/restored/required or a negative error code on failure */
static int guc_action_vf_save_restore(struct xe_guc *guc, u32 vfid, u32 opcode,
u64 addr, u32 ndwords)
@@ -382,6 +394,142 @@ ssize_t xe_gt_sriov_pf_migration_write_guc_state(struct xe_gt *gt, unsigned int
}
#endif /* CONFIG_DEBUG_FS */

+/**
+ * xe_gt_sriov_pf_migration_ring_empty() - Check if a migration ring is empty
+ * @gt: the &struct xe_gt
+ * @vfid: the VF identifier
+ *
+ * Return: true if the ring is empty, otherwise false.
+ */
+bool xe_gt_sriov_pf_migration_ring_empty(struct xe_gt *gt, unsigned int vfid)
+{
+ return ptr_ring_empty(&pf_pick_gt_migration(gt, vfid)->ring);
+}
+
+/**
+ * xe_gt_sriov_pf_migration_produce() - Add migration data packet to migration ring
+ * @gt: the &struct xe_gt
+ * @vfid: the VF identifier
+ * @data: &struct xe_sriov_pf_migration_data packet
+ *
+ * If the ring is full, wait until there is space in the ring.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_gt_sriov_pf_migration_ring_produce(struct xe_gt *gt, unsigned int vfid,
+ struct xe_sriov_pf_migration_data *data)
+{
+ struct xe_gt_sriov_pf_migration *migration = pf_pick_gt_migration(gt, vfid);
+ struct wait_queue_head *wq = xe_sriov_pf_migration_waitqueue(gt_to_xe(gt), vfid);
+ unsigned long timeout = XE_GT_SRIOV_PF_MIGRATION_RING_TIMEOUT;
+ int ret;
+
+ xe_gt_assert(gt, data->tile == gt->tile->id);
+ xe_gt_assert(gt, data->gt == gt->info.id);
+
+ while (1) {
+ ret = ptr_ring_produce(&migration->ring, data);
+ if (ret == 0) {
+ wake_up_all(wq);
+ break;
+ }
+
+ if (!xe_gt_sriov_pf_control_check_vf_data_wip(gt, vfid))
+ return -EINVAL;
+
+ ret = wait_event_interruptible_timeout(*wq,
+ !ptr_ring_full(&migration->ring),
+ timeout);
+ if (ret == 0)
+ return -ETIMEDOUT;
+
+ timeout = ret;
+ }
+
+ return ret;
+}
+
+/**
+ * xe_gt_sriov_pf_migration_consume() - Get migration data packet from migration ring
+ * @gt: the &struct xe_gt
+ * @vfid: the VF identifier
+ *
+ * If the ring is empty, wait until there are new migration data packets to process.
+ *
+ * Return: Pointer to &struct xe_sriov_pf_migration_data on success,
+ * ERR_PTR(-ENODATA) if ring is empty and no more migration data is expected,
+ * ERR_PTR value in case of error.
+ */
+struct xe_sriov_pf_migration_data *
+xe_gt_sriov_pf_migration_ring_consume(struct xe_gt *gt, unsigned int vfid)
+{
+ struct xe_gt_sriov_pf_migration *migration = pf_pick_gt_migration(gt, vfid);
+ struct wait_queue_head *wq = xe_sriov_pf_migration_waitqueue(gt_to_xe(gt), vfid);
+ unsigned long timeout = XE_GT_SRIOV_PF_MIGRATION_RING_TIMEOUT;
+ struct xe_sriov_pf_migration_data *data;
+ int ret;
+
+ while (1) {
+ data = ptr_ring_consume(&migration->ring);
+ if (data) {
+ wake_up_all(wq);
+ break;
+ }
+
+ if (!xe_gt_sriov_pf_control_check_vf_data_wip(gt, vfid))
+ return ERR_PTR(-ENODATA);
+
+ ret = wait_event_interruptible_timeout(*wq,
+ !ptr_ring_empty(&migration->ring) ||
+ !xe_gt_sriov_pf_control_check_vf_data_wip(gt, vfid),
+ timeout);
+ if (ret == 0)
+ return ERR_PTR(-ETIMEDOUT);
+
+ timeout = ret;
+ }
+
+ return data;
+}
+
+/**
+ * xe_gt_sriov_pf_migration_consume_nowait() - Get migration data packet from migration ring
+ * @gt: the &struct xe_gt
+ * @vfid: the VF identifier
+ *
+ * Similar to xe_gt_sriov_pf_migration_consume(), but doesn't wait until more data is available.
+ *
+ * Return: Pointer to &struct xe_sriov_pf_migration_data on success,
+ * ERR_PTR(-EAGAIN) if ring is empty but migration data is expected,
+ * ERR_PTR(-ENODATA) if ring is empty and no more migration data is expected,
+ * ERR_PTR value in case of error.
+ */
+struct xe_sriov_pf_migration_data *
+xe_gt_sriov_pf_migration_ring_consume_nowait(struct xe_gt *gt, unsigned int vfid)
+{
+ struct xe_gt_sriov_pf_migration *migration = pf_pick_gt_migration(gt, vfid);
+ struct wait_queue_head *wq = xe_sriov_pf_migration_waitqueue(gt_to_xe(gt), vfid);
+ struct xe_sriov_pf_migration_data *data;
+
+ data = ptr_ring_consume(&migration->ring);
+ if (data) {
+ wake_up_all(wq);
+ return data;
+ }
+
+ if (!xe_gt_sriov_pf_control_check_vf_data_wip(gt, vfid))
+ return ERR_PTR(-ENODATA);
+
+ return ERR_PTR(-EAGAIN);
+}
+
+static void pf_gt_migration_cleanup(struct drm_device *dev, void *arg)
+{
+ struct xe_gt_sriov_pf_migration *migration = arg;
+
+ ptr_ring_cleanup(&migration->ring, NULL);
+}
+
/**
* xe_gt_sriov_pf_migration_init() - Initialize support for VF migration.
* @gt: the &xe_gt
@@ -393,6 +541,7 @@ ssize_t xe_gt_sriov_pf_migration_write_guc_state(struct xe_gt *gt, unsigned int
int xe_gt_sriov_pf_migration_init(struct xe_gt *gt)
{
struct xe_device *xe = gt_to_xe(gt);
+ unsigned int n, totalvfs;
int err;

xe_gt_assert(gt, IS_SRIOV_PF(xe));
@@ -404,5 +553,19 @@ int xe_gt_sriov_pf_migration_init(struct xe_gt *gt)
if (err)
return err;

+ totalvfs = xe_sriov_pf_get_totalvfs(xe);
+ for (n = 0; n <= totalvfs; n++) {
+ struct xe_gt_sriov_pf_migration *migration = pf_pick_gt_migration(gt, n);
+
+ err = ptr_ring_init(&migration->ring,
+ XE_GT_SRIOV_PF_MIGRATION_RING_SIZE, GFP_KERNEL);
+ if (err)
+ return err;
+
+ err = drmm_add_action_or_reset(&xe->drm, pf_gt_migration_cleanup, migration);
+ if (err)
+ return err;
+ }
+
return 0;
}
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h
index 09faeae00ddbb..1e4dc46413823 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h
@@ -9,11 +9,20 @@
#include <linux/types.h>

struct xe_gt;
+struct xe_sriov_pf_migration_data;

int xe_gt_sriov_pf_migration_init(struct xe_gt *gt);
int xe_gt_sriov_pf_migration_save_guc_state(struct xe_gt *gt, unsigned int vfid);
int xe_gt_sriov_pf_migration_restore_guc_state(struct xe_gt *gt, unsigned int vfid);

+bool xe_gt_sriov_pf_migration_ring_empty(struct xe_gt *gt, unsigned int vfid);
+int xe_gt_sriov_pf_migration_ring_produce(struct xe_gt *gt, unsigned int vfid,
+ struct xe_sriov_pf_migration_data *data);
+struct xe_sriov_pf_migration_data *
+xe_gt_sriov_pf_migration_ring_consume(struct xe_gt *gt, unsigned int vfid);
+struct xe_sriov_pf_migration_data *
+xe_gt_sriov_pf_migration_ring_consume_nowait(struct xe_gt *gt, unsigned int vfid);
+
#ifdef CONFIG_DEBUG_FS
ssize_t xe_gt_sriov_pf_migration_read_guc_state(struct xe_gt *gt, unsigned int vfid,
char __user *buf, size_t count, loff_t *pos);
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration_types.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration_types.h
index fdc5a31dd8989..8434689372082 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration_types.h
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration_types.h
@@ -7,6 +7,7 @@
#define _XE_GT_SRIOV_PF_MIGRATION_TYPES_H_

#include <linux/mutex.h>
+#include <linux/ptr_ring.h>
#include <linux/types.h>

/**
@@ -27,9 +28,11 @@ struct xe_gt_sriov_state_snapshot {
/**
* struct xe_gt_sriov_pf_migration - GT-level data.
*
- * Used by the PF driver to maintain non-VF specific per-GT data.
+ * Used by the PF driver to maintain per-VF migration data.
*/
struct xe_gt_sriov_pf_migration {
+ /** @ring: queue containing VF save / restore migration data */
+ struct ptr_ring ring;
};

#endif
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_types.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_types.h
index 9a856da379d39..fbb08f8030f7f 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_types.h
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_types.h
@@ -33,6 +33,9 @@ struct xe_gt_sriov_metadata {

/** @snapshot: snapshot of the VF state data */
struct xe_gt_sriov_state_snapshot snapshot;
+
+ /** @migration: */
+ struct xe_gt_sriov_pf_migration migration;
};

/**
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_migration.c b/drivers/gpu/drm/xe/xe_sriov_pf_migration.c
index cf6a210d5597a..347682f29a03c 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_migration.c
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_migration.c
@@ -4,7 +4,35 @@
*/

#include "xe_sriov.h"
+#include <drm/drm_managed.h>
+
+#include "xe_device.h"
+#include "xe_gt_sriov_pf_control.h"
+#include "xe_gt_sriov_pf_migration.h"
+#include "xe_pm.h"
+#include "xe_sriov_pf_helpers.h"
#include "xe_sriov_pf_migration.h"
+#include "xe_sriov_printk.h"
+
+static struct xe_sriov_pf_migration *pf_pick_migration(struct xe_device *xe, unsigned int vfid)
+{
+ xe_assert(xe, IS_SRIOV_PF(xe));
+ xe_assert(xe, vfid <= xe_sriov_pf_get_totalvfs(xe));
+
+ return &xe->sriov.pf.vfs[vfid].migration;
+}
+
+/**
+ * xe_sriov_pf_migration_waitqueue - Get waitqueue for migration
+ * @xe: the &struct xe_device
+ * @vfid: the VF identifier
+ *
+ * Return: pointer to the migration waitqueue.
+ */
+wait_queue_head_t *xe_sriov_pf_migration_waitqueue(struct xe_device *xe, unsigned int vfid)
+{
+ return &pf_pick_migration(xe, vfid)->wq;
+}

/**
* xe_sriov_pf_migration_supported() - Check if SR-IOV VF migration is supported by the device
@@ -35,9 +63,128 @@ static bool pf_check_migration_support(struct xe_device *xe)
*/
int xe_sriov_pf_migration_init(struct xe_device *xe)
{
+ unsigned int n, totalvfs;
+
xe_assert(xe, IS_SRIOV_PF(xe));

xe->sriov.pf.migration.supported = pf_check_migration_support(xe);
+ if (!xe_sriov_pf_migration_supported(xe))
+ return 0;
+
+ totalvfs = xe_sriov_pf_get_totalvfs(xe);
+ for (n = 1; n <= totalvfs; n++) {
+ struct xe_sriov_pf_migration *migration = pf_pick_migration(xe, n);
+
+ init_waitqueue_head(&migration->wq);
+ }

return 0;
}
+
+static bool pf_migration_empty(struct xe_device *xe, unsigned int vfid)
+{
+ struct xe_gt *gt;
+ u8 gt_id;
+
+ for_each_gt(gt, xe, gt_id) {
+ if (!xe_gt_sriov_pf_migration_ring_empty(gt, vfid))
+ return false;
+ }
+
+ return true;
+}
+
+static struct xe_sriov_pf_migration_data *
+pf_migration_consume(struct xe_device *xe, unsigned int vfid)
+{
+ struct xe_sriov_pf_migration_data *data;
+ struct xe_gt *gt;
+ u8 gt_id;
+ bool no_data = true;
+
+ for_each_gt(gt, xe, gt_id) {
+ data = xe_gt_sriov_pf_migration_ring_consume_nowait(gt, vfid);
+
+ if (!IS_ERR(data))
+ return data;
+ else if (PTR_ERR(data) == -EAGAIN)
+ no_data = false;
+ }
+
+ if (no_data)
+ return ERR_PTR(-ENODATA);
+
+ return ERR_PTR(-EAGAIN);
+}
+
+/**
+ * xe_sriov_pf_migration_consume() - Consume a SR-IOV VF migration data packet from the device
+ * @xe: the &struct xe_device
+ * @vfid: the VF identifier
+ *
+ * If there is no migration data to process, wait until more data is available.
+ *
+ * Return: Pointer to &struct xe_sriov_pf_migration_data on success,
+ * ERR_PTR(-ENODATA) if ring is empty and no more migration data is expected,
+ * ERR_PTR value in case of error.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+struct xe_sriov_pf_migration_data *
+xe_sriov_pf_migration_consume(struct xe_device *xe, unsigned int vfid)
+{
+ struct xe_sriov_pf_migration *migration = pf_pick_migration(xe, vfid);
+ unsigned long timeout = HZ * 5;
+ struct xe_sriov_pf_migration_data *data;
+ int ret;
+
+ if (!IS_SRIOV_PF(xe))
+ return ERR_PTR(-ENODEV);
+
+ while (1) {
+ data = pf_migration_consume(xe, vfid);
+ if (!IS_ERR(data) || PTR_ERR(data) != -EAGAIN)
+ goto out;
+
+ ret = wait_event_interruptible_timeout(migration->wq,
+ !pf_migration_empty(xe, vfid),
+ timeout);
+ if (ret == 0) {
+ xe_sriov_warn(xe, "VF%d Timed out waiting for migration data\n", vfid);
+ return ERR_PTR(-ETIMEDOUT);
+ }
+
+ timeout = ret;
+ }
+
+out:
+ return data;
+}
+
+/**
+ * xe_sriov_pf_migration_produce() - Produce a SR-IOV VF migration data packet for device to process
+ * @xe: the &struct xe_device
+ * @vfid: the VF identifier
+ * @data: VF migration data
+ *
+ * If the underlying data structure is full, wait until there is space.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_sriov_pf_migration_produce(struct xe_device *xe, unsigned int vfid,
+ struct xe_sriov_pf_migration_data *data)
+{
+ struct xe_gt *gt;
+
+ if (!IS_SRIOV_PF(xe))
+ return -ENODEV;
+
+ gt = xe_device_get_gt(xe, data->gt);
+ if (!gt || data->tile != gt->tile->id) {
+ xe_sriov_err_ratelimited(xe, "VF%d Unknown GT - tile_id:%d, gt_id:%d\n",
+ vfid, data->tile, data->gt);
+ return -EINVAL;
+ }
+
+ return xe_gt_sriov_pf_migration_ring_produce(gt, vfid, data);
+}
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_migration.h b/drivers/gpu/drm/xe/xe_sriov_pf_migration.h
index d3058b6682192..f2020ba19c2da 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_migration.h
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_migration.h
@@ -7,12 +7,18 @@
#define _XE_SRIOV_PF_MIGRATION_H_

#include <linux/types.h>
+#include <linux/wait.h>

struct xe_device;

#ifdef CONFIG_PCI_IOV
int xe_sriov_pf_migration_init(struct xe_device *xe);
bool xe_sriov_pf_migration_supported(struct xe_device *xe);
+struct xe_sriov_pf_migration_data *
+xe_sriov_pf_migration_consume(struct xe_device *xe, unsigned int vfid);
+int xe_sriov_pf_migration_produce(struct xe_device *xe, unsigned int vfid,
+ struct xe_sriov_pf_migration_data *data);
+wait_queue_head_t *xe_sriov_pf_migration_waitqueue(struct xe_device *xe, unsigned int vfid);
#else
static inline int xe_sriov_pf_migration_init(struct xe_device *xe)
{
@@ -22,6 +28,20 @@ static inline bool xe_sriov_pf_migration_supported(struct xe_device *xe)
{
return false;
}
+static inline struct xe_sriov_pf_migration_data *
+xe_sriov_pf_migration_consume(struct xe_device *xe, unsigned int vfid)
+{
+ return ERR_PTR(-ENODEV);
+}
+static inline int xe_sriov_pf_migration_produce(struct xe_device *xe, unsigned int vfid,
+ struct xe_sriov_pf_migration_data *data)
+{
+ return -ENODEV;
+}
+wait_queue_head_t *xe_sriov_pf_migration_waitqueue(struct xe_device *xe, unsigned int vfid)
+{
+ return ERR_PTR(-ENODEV);
+}
#endif

#endif
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_migration_types.h b/drivers/gpu/drm/xe/xe_sriov_pf_migration_types.h
index e69de29bb2d1d..80fdea32b884a 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_migration_types.h
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_migration_types.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef _XE_SRIOV_PF_MIGRATION_TYPES_H_
+#define _XE_SRIOV_PF_MIGRATION_TYPES_H_
+
+#include <linux/types.h>
+#include <linux/wait.h>
+
+struct xe_sriov_pf_migration_data {
+ struct xe_device *xe;
+ void *vaddr;
+ size_t remaining;
+ size_t hdr_remaining;
+ union {
+ struct xe_bo *bo;
+ void *buff;
+ };
+ __struct_group(xe_sriov_pf_migration_hdr, hdr, __packed,
+ u8 version;
+ u8 type;
+ u8 tile;
+ u8 gt;
+ u32 flags;
+ u64 offset;
+ u64 size;
+ );
+};
+
+struct xe_sriov_pf_migration {
+ /** @wq: waitqueue used to avoid busy-waiting for snapshot production/consumption */
+ wait_queue_head_t wq;
+};
+
+#endif
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_types.h b/drivers/gpu/drm/xe/xe_sriov_pf_types.h
index 2d2fcc0a2f258..b3ae21a5a0490 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_types.h
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_types.h
@@ -9,6 +9,7 @@
#include <linux/mutex.h>
#include <linux/types.h>

+#include "xe_sriov_pf_migration_types.h"
#include "xe_sriov_pf_service_types.h"

/**
@@ -17,6 +18,8 @@
struct xe_sriov_metadata {
/** @version: negotiated VF/PF ABI version */
struct xe_sriov_pf_service_version version;
+ /** @migration: migration data */
+ struct xe_sriov_pf_migration migration;
};

/**
--
2.50.1