1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright (c) 2016-2017 Hisilicon Limited.
3 
4 #include "hnae3.h"
5 #include "hns3_enet.h"
6 
7 static int hns3_dcbnl_ieee_getets(struct net_device *ndev, struct ieee_ets *ets)
8 {
9 	struct hnae3_handle *h = hns3_get_handle(ndev);
10 
11 	if (hns3_nic_resetting(ndev))
12 		return -EBUSY;
13 
14 	if (h->kinfo.dcb_ops->ieee_getets)
15 		return h->kinfo.dcb_ops->ieee_getets(h, ets);
16 
17 	return -EOPNOTSUPP;
18 }
19 
20 static int hns3_dcbnl_ieee_setets(struct net_device *ndev, struct ieee_ets *ets)
21 {
22 	struct hnae3_handle *h = hns3_get_handle(ndev);
23 
24 	if (hns3_nic_resetting(ndev))
25 		return -EBUSY;
26 
27 	if (h->kinfo.dcb_ops->ieee_setets)
28 		return h->kinfo.dcb_ops->ieee_setets(h, ets);
29 
30 	return -EOPNOTSUPP;
31 }
32 
33 static int hns3_dcbnl_ieee_getpfc(struct net_device *ndev, struct ieee_pfc *pfc)
34 {
35 	struct hnae3_handle *h = hns3_get_handle(ndev);
36 
37 	if (hns3_nic_resetting(ndev))
38 		return -EBUSY;
39 
40 	if (h->kinfo.dcb_ops->ieee_getpfc)
41 		return h->kinfo.dcb_ops->ieee_getpfc(h, pfc);
42 
43 	return -EOPNOTSUPP;
44 }
45 
46 static int hns3_dcbnl_ieee_setpfc(struct net_device *ndev, struct ieee_pfc *pfc)
47 {
48 	struct hnae3_handle *h = hns3_get_handle(ndev);
49 
50 	if (hns3_nic_resetting(ndev))
51 		return -EBUSY;
52 
53 	if (h->kinfo.dcb_ops->ieee_setpfc)
54 		return h->kinfo.dcb_ops->ieee_setpfc(h, pfc);
55 
56 	return -EOPNOTSUPP;
57 }
58 
59 /* DCBX configuration */
60 static u8 hns3_dcbnl_getdcbx(struct net_device *ndev)
61 {
62 	struct hnae3_handle *h = hns3_get_handle(ndev);
63 
64 	if (h->kinfo.dcb_ops->getdcbx)
65 		return h->kinfo.dcb_ops->getdcbx(h);
66 
67 	return 0;
68 }
69 
70 /* return 0 if successful, otherwise fail */
71 static u8 hns3_dcbnl_setdcbx(struct net_device *ndev, u8 mode)
72 {
73 	struct hnae3_handle *h = hns3_get_handle(ndev);
74 
75 	if (h->kinfo.dcb_ops->setdcbx)
76 		return h->kinfo.dcb_ops->setdcbx(h, mode);
77 
78 	return 1;
79 }
80 
81 static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
82 	.ieee_getets	= hns3_dcbnl_ieee_getets,
83 	.ieee_setets	= hns3_dcbnl_ieee_setets,
84 	.ieee_getpfc	= hns3_dcbnl_ieee_getpfc,
85 	.ieee_setpfc	= hns3_dcbnl_ieee_setpfc,
86 	.getdcbx	= hns3_dcbnl_getdcbx,
87 	.setdcbx	= hns3_dcbnl_setdcbx,
88 };
89 
90 /* hclge_dcbnl_setup - DCBNL setup
91  * @handle: the corresponding vport handle
92  * Set up DCBNL
93  */
94 void hns3_dcbnl_setup(struct hnae3_handle *handle)
95 {
96 	struct net_device *dev = handle->kinfo.netdev;
97 
98 	if ((!handle->kinfo.dcb_ops) || (handle->flags & HNAE3_SUPPORT_VF))
99 		return;
100 
101 	dev->dcbnl_ops = &hns3_dcbnl_ops;
102 }
103