@@ -7,3 +7,4 @@ obj-$(CONFIG_MLX5_VDPA) += mlx5/
obj-$(CONFIG_VP_VDPA) += virtio_pci/
obj-$(CONFIG_ALIBABA_ENI_VDPA) += alibaba/
obj-$(CONFIG_SNET_VDPA) += solidrun/
+obj-$(CONFIG_PDS_VDPA) += pds/
new file mode 100644
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright(c) 2023 Advanced Micro Devices, Inc
+
+obj-$(CONFIG_PDS_VDPA) := pds_vdpa.o
+
+pds_vdpa-y := aux_drv.o
+
+pds_vdpa-$(CONFIG_DEBUG_FS) += debugfs.o
new file mode 100644
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright(c) 2023 Advanced Micro Devices, Inc */
+
+#include <linux/auxiliary_bus.h>
+#include <linux/pci.h>
+
+#include <linux/pds/pds_common.h>
+#include <linux/pds/pds_core_if.h>
+#include <linux/pds/pds_adminq.h>
+#include <linux/pds/pds_auxbus.h>
+
+#include "aux_drv.h"
+#include "debugfs.h"
+
+static const struct auxiliary_device_id pds_vdpa_id_table[] = {
+ { .name = PDS_VDPA_DEV_NAME, },
+ {},
+};
+
+static int pds_vdpa_probe(struct auxiliary_device *aux_dev,
+ const struct auxiliary_device_id *id)
+
+{
+ struct pds_auxiliary_dev *padev =
+ container_of(aux_dev, struct pds_auxiliary_dev, aux_dev);
+ struct pds_vdpa_aux *vdpa_aux;
+
+ vdpa_aux = kzalloc(sizeof(*vdpa_aux), GFP_KERNEL);
+ if (!vdpa_aux)
+ return -ENOMEM;
+
+ vdpa_aux->padev = padev;
+ auxiliary_set_drvdata(aux_dev, vdpa_aux);
+
+ return 0;
+}
+
+static void pds_vdpa_remove(struct auxiliary_device *aux_dev)
+{
+ struct pds_vdpa_aux *vdpa_aux = auxiliary_get_drvdata(aux_dev);
+ struct device *dev = &aux_dev->dev;
+
+ kfree(vdpa_aux);
+ auxiliary_set_drvdata(aux_dev, NULL);
+
+ dev_info(dev, "Removed\n");
+}
+
+static struct auxiliary_driver pds_vdpa_driver = {
+ .name = PDS_DEV_TYPE_VDPA_STR,
+ .probe = pds_vdpa_probe,
+ .remove = pds_vdpa_remove,
+ .id_table = pds_vdpa_id_table,
+};
+
+static void __exit pds_vdpa_cleanup(void)
+{
+ auxiliary_driver_unregister(&pds_vdpa_driver);
+
+ pds_vdpa_debugfs_destroy();
+}
+module_exit(pds_vdpa_cleanup);
+
+static int __init pds_vdpa_init(void)
+{
+ int err;
+
+ pds_vdpa_debugfs_create();
+
+ err = auxiliary_driver_register(&pds_vdpa_driver);
+ if (err) {
+ pr_err("%s: aux driver register failed: %pe\n",
+ PDS_VDPA_DRV_NAME, ERR_PTR(err));
+ pds_vdpa_debugfs_destroy();
+ }
+
+ return err;
+}
+module_init(pds_vdpa_init);
+
+MODULE_DESCRIPTION(PDS_VDPA_DRV_DESCRIPTION);
+MODULE_AUTHOR("Advanced Micro Devices, Inc");
+MODULE_LICENSE("GPL");
new file mode 100644
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright(c) 2023 Advanced Micro Devices, Inc */
+
+#ifndef _AUX_DRV_H_
+#define _AUX_DRV_H_
+
+#define PDS_VDPA_DRV_DESCRIPTION "AMD/Pensando vDPA VF Device Driver"
+#define PDS_VDPA_DRV_NAME KBUILD_MODNAME
+
+struct pds_vdpa_aux {
+ struct pds_auxiliary_dev *padev;
+
+ struct dentry *dentry;
+};
+#endif /* _AUX_DRV_H_ */
new file mode 100644
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright(c) 2023 Advanced Micro Devices, Inc */
+
+#include <linux/pci.h>
+
+#include <linux/pds/pds_common.h>
+#include <linux/pds/pds_core_if.h>
+#include <linux/pds/pds_adminq.h>
+#include <linux/pds/pds_auxbus.h>
+
+#include "aux_drv.h"
+#include "debugfs.h"
+
+static struct dentry *dbfs_dir;
+
+void pds_vdpa_debugfs_create(void)
+{
+ dbfs_dir = debugfs_create_dir(PDS_VDPA_DRV_NAME, NULL);
+}
+
+void pds_vdpa_debugfs_destroy(void)
+{
+ debugfs_remove_recursive(dbfs_dir);
+ dbfs_dir = NULL;
+}
new file mode 100644
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2023 Advanced Micro Devices, Inc */
+
+#ifndef _PDS_VDPA_DEBUGFS_H_
+#define _PDS_VDPA_DEBUGFS_H_
+
+#include <linux/debugfs.h>
+
+void pds_vdpa_debugfs_create(void);
+void pds_vdpa_debugfs_destroy(void);
+
+#endif /* _PDS_VDPA_DEBUGFS_H_ */
@@ -39,6 +39,8 @@ enum pds_core_vif_types {
#define PDS_DEV_TYPE_RDMA_STR "RDMA"
#define PDS_DEV_TYPE_LM_STR "LM"
+#define PDS_VDPA_DEV_NAME PDS_CORE_DRV_NAME "." PDS_DEV_TYPE_VDPA_STR
+
#define PDS_CORE_IFNAMSIZ 16
/**