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1// SPDX-License-Identifier: GPL-2.0-only2// Copyright 2013 Cisco Systems, Inc. All rights reserved.3 4#include <linux/netdevice.h>5#include <linux/spinlock.h>6 7#include "vnic_dev.h"8#include "vnic_devcmd.h"9 10#include "enic_res.h"11#include "enic.h"12#include "enic_api.h"13 14int enic_api_devcmd_proxy_by_index(struct net_device *netdev, int vf,15 enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)16{17 int err;18 struct enic *enic = netdev_priv(netdev);19 struct vnic_dev *vdev = enic->vdev;20 21 spin_lock(&enic->enic_api_lock);22 while (enic->enic_api_busy) {23 spin_unlock(&enic->enic_api_lock);24 cpu_relax();25 spin_lock(&enic->enic_api_lock);26 }27 28 spin_lock_bh(&enic->devcmd_lock);29 30 vnic_dev_cmd_proxy_by_index_start(vdev, vf);31 err = vnic_dev_cmd(vdev, cmd, a0, a1, wait);32 vnic_dev_cmd_proxy_end(vdev);33 34 spin_unlock_bh(&enic->devcmd_lock);35 spin_unlock(&enic->enic_api_lock);36 37 return err;38}39EXPORT_SYMBOL(enic_api_devcmd_proxy_by_index);40