1// SPDX-License-Identifier: GPL-2.0-only
 2// 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);

 1/**
 2 * Copyright 2013 Cisco Systems, Inc.  All rights reserved.
 3 *
 4 * This program is free software; you may redistribute it and/or modify
 5 * it under the terms of the GNU General Public License as published by
 6 * the Free Software Foundation; version 2 of the License.
 7 *
 8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
15 * SOFTWARE.
16 *
17 */
18
19#include <linux/netdevice.h>
20#include <linux/spinlock.h>
21
22#include "vnic_dev.h"
23#include "vnic_devcmd.h"
24
25#include "enic_res.h"
26#include "enic.h"
27#include "enic_api.h"
28
29int enic_api_devcmd_proxy_by_index(struct net_device *netdev, int vf,
30	enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
31{
32	int err;
33	struct enic *enic = netdev_priv(netdev);
34	struct vnic_dev *vdev = enic->vdev;
35
36	spin_lock(&enic->enic_api_lock);
 
 
 
 
 
 
37	spin_lock_bh(&enic->devcmd_lock);
38
39	vnic_dev_cmd_proxy_by_index_start(vdev, vf);
40	err = vnic_dev_cmd(vdev, cmd, a0, a1, wait);
41	vnic_dev_cmd_proxy_end(vdev);
42
43	spin_unlock_bh(&enic->devcmd_lock);
44	spin_unlock(&enic->enic_api_lock);
45
46	return err;
47}
48EXPORT_SYMBOL(enic_api_devcmd_proxy_by_index);