| // SPDX-License-Identifier: GPL-2.0-only |
| // Copyright 2013 Cisco Systems, Inc. All rights reserved. |
| |
| #include <linux/netdevice.h> |
| #include <linux/spinlock.h> |
| |
| #include "vnic_dev.h" |
| #include "vnic_devcmd.h" |
| |
| #include "enic_res.h" |
| #include "enic.h" |
| #include "enic_api.h" |
| |
| int enic_api_devcmd_proxy_by_index(struct net_device *netdev, int vf, |
| enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait) |
| { |
| int err; |
| struct enic *enic = netdev_priv(netdev); |
| struct vnic_dev *vdev = enic->vdev; |
| |
| spin_lock(&enic->enic_api_lock); |
| while (enic->enic_api_busy) { |
| spin_unlock(&enic->enic_api_lock); |
| cpu_relax(); |
| spin_lock(&enic->enic_api_lock); |
| } |
| |
| spin_lock_bh(&enic->devcmd_lock); |
| |
| vnic_dev_cmd_proxy_by_index_start(vdev, vf); |
| err = vnic_dev_cmd(vdev, cmd, a0, a1, wait); |
| vnic_dev_cmd_proxy_end(vdev); |
| |
| spin_unlock_bh(&enic->devcmd_lock); |
| spin_unlock(&enic->enic_api_lock); |
| |
| return err; |
| } |
| EXPORT_SYMBOL(enic_api_devcmd_proxy_by_index); |