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
8 int hns3_dcbnl_ieee_getets(struct net_device *ndev, struct ieee_ets *ets)
9 {
10 	struct hnae3_handle *h = hns3_get_handle(ndev);
11 
12 	if (hns3_nic_resetting(ndev))
13 		return -EBUSY;
14 
15 	if (h->kinfo.dcb_ops->ieee_getets)
16 		return h->kinfo.dcb_ops->ieee_getets(h, ets);
17 
18 	return -EOPNOTSUPP;
19 }
20 
21 static
22 int hns3_dcbnl_ieee_setets(struct net_device *ndev, struct ieee_ets *ets)
23 {
24 	struct hnae3_handle *h = hns3_get_handle(ndev);
25 
26 	if (hns3_nic_resetting(ndev))
27 		return -EBUSY;
28 
29 	if (h->kinfo.dcb_ops->ieee_setets)
30 		return h->kinfo.dcb_ops->ieee_setets(h, ets);
31 
32 	return -EOPNOTSUPP;
33 }
34 
35 static
36 int hns3_dcbnl_ieee_getpfc(struct net_device *ndev, struct ieee_pfc *pfc)
37 {
38 	struct hnae3_handle *h = hns3_get_handle(ndev);
39 
40 	if (hns3_nic_resetting(ndev))
41 		return -EBUSY;
42 
43 	if (h->kinfo.dcb_ops->ieee_getpfc)
44 		return h->kinfo.dcb_ops->ieee_getpfc(h, pfc);
45 
46 	return -EOPNOTSUPP;
47 }
48 
49 static
50 int hns3_dcbnl_ieee_setpfc(struct net_device *ndev, struct ieee_pfc *pfc)
51 {
52 	struct hnae3_handle *h = hns3_get_handle(ndev);
53 
54 	if (hns3_nic_resetting(ndev))
55 		return -EBUSY;
56 
57 	if (h->kinfo.dcb_ops->ieee_setpfc)
58 		return h->kinfo.dcb_ops->ieee_setpfc(h, pfc);
59 
60 	return -EOPNOTSUPP;
61 }
62 
63 /* DCBX configuration */
64 static u8 hns3_dcbnl_getdcbx(struct net_device *ndev)
65 {
66 	struct hnae3_handle *h = hns3_get_handle(ndev);
67 
68 	if (h->kinfo.dcb_ops->getdcbx)
69 		return h->kinfo.dcb_ops->getdcbx(h);
70 
71 	return 0;
72 }
73 
74 /* return 0 if successful, otherwise fail */
75 static u8 hns3_dcbnl_setdcbx(struct net_device *ndev, u8 mode)
76 {
77 	struct hnae3_handle *h = hns3_get_handle(ndev);
78 
79 	if (h->kinfo.dcb_ops->setdcbx)
80 		return h->kinfo.dcb_ops->setdcbx(h, mode);
81 
82 	return 1;
83 }
84 
85 static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
86 	.ieee_getets	= hns3_dcbnl_ieee_getets,
87 	.ieee_setets	= hns3_dcbnl_ieee_setets,
88 	.ieee_getpfc	= hns3_dcbnl_ieee_getpfc,
89 	.ieee_setpfc	= hns3_dcbnl_ieee_setpfc,
90 	.getdcbx	= hns3_dcbnl_getdcbx,
91 	.setdcbx	= hns3_dcbnl_setdcbx,
92 };
93 
94 /* hclge_dcbnl_setup - DCBNL setup
95  * @handle: the corresponding vport handle
96  * Set up DCBNL
97  */
98 void hns3_dcbnl_setup(struct hnae3_handle *handle)
99 {
100 	struct net_device *dev = handle->kinfo.netdev;
101 
102 	if ((!handle->kinfo.dcb_ops) || (handle->flags & HNAE3_SUPPORT_VF))
103 		return;
104 
105 	dev->dcbnl_ops = &hns3_dcbnl_ops;
106 }
107