1d0ea5cbdSJesse Brandeburg /* 20b038566SNeel Patel * Copyright 2013 Cisco Systems, Inc. All rights reserved. 30b038566SNeel Patel * 40b038566SNeel Patel * This program is free software; you may redistribute it and/or modify 50b038566SNeel Patel * it under the terms of the GNU General Public License as published by 60b038566SNeel Patel * the Free Software Foundation; version 2 of the License. 70b038566SNeel Patel * 80b038566SNeel Patel * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 90b038566SNeel Patel * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 100b038566SNeel Patel * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 110b038566SNeel Patel * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 120b038566SNeel Patel * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 130b038566SNeel Patel * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 140b038566SNeel Patel * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 150b038566SNeel Patel * SOFTWARE. 160b038566SNeel Patel * 170b038566SNeel Patel */ 180b038566SNeel Patel 190b038566SNeel Patel #include <linux/netdevice.h> 200b038566SNeel Patel #include <linux/spinlock.h> 210b038566SNeel Patel 220b038566SNeel Patel #include "vnic_dev.h" 230b038566SNeel Patel #include "vnic_devcmd.h" 240b038566SNeel Patel 250b038566SNeel Patel #include "enic_res.h" 260b038566SNeel Patel #include "enic.h" 270b038566SNeel Patel #include "enic_api.h" 280b038566SNeel Patel 290b038566SNeel Patel int enic_api_devcmd_proxy_by_index(struct net_device *netdev, int vf, 300b038566SNeel Patel enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait) 310b038566SNeel Patel { 320b038566SNeel Patel int err; 330b038566SNeel Patel struct enic *enic = netdev_priv(netdev); 340b038566SNeel Patel struct vnic_dev *vdev = enic->vdev; 350b038566SNeel Patel 360b038566SNeel Patel spin_lock(&enic->enic_api_lock); 37*a53b59ecSThomas Gleixner while (enic->enic_api_busy) { 38*a53b59ecSThomas Gleixner spin_unlock(&enic->enic_api_lock); 39*a53b59ecSThomas Gleixner cpu_relax(); 40*a53b59ecSThomas Gleixner spin_lock(&enic->enic_api_lock); 41*a53b59ecSThomas Gleixner } 42*a53b59ecSThomas Gleixner 438e091340STony Camuso spin_lock_bh(&enic->devcmd_lock); 440b038566SNeel Patel 450b038566SNeel Patel vnic_dev_cmd_proxy_by_index_start(vdev, vf); 460b038566SNeel Patel err = vnic_dev_cmd(vdev, cmd, a0, a1, wait); 470b038566SNeel Patel vnic_dev_cmd_proxy_end(vdev); 480b038566SNeel Patel 498e091340STony Camuso spin_unlock_bh(&enic->devcmd_lock); 500b038566SNeel Patel spin_unlock(&enic->enic_api_lock); 510b038566SNeel Patel 520b038566SNeel Patel return err; 530b038566SNeel Patel } 540b038566SNeel Patel EXPORT_SYMBOL(enic_api_devcmd_proxy_by_index); 55