drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c

   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 static int hns3_dcbnl_ieee_setapp(struct net_device *ndev, struct dcb_app *app)
  60 {
  61         struct hnae3_handle *h = hns3_get_handle(ndev);
  62
  63         if (hns3_nic_resetting(ndev))
  64                 return -EBUSY;
  65
  66         if (h->kinfo.dcb_ops->ieee_setapp)
  67                 return h->kinfo.dcb_ops->ieee_setapp(h, app);
  68
  69         return -EOPNOTSUPP;
  70 }
  71
  72 static int hns3_dcbnl_ieee_delapp(struct net_device *ndev, struct dcb_app *app)
  73 {
  74         struct hnae3_handle *h = hns3_get_handle(ndev);
  75
  76         if (hns3_nic_resetting(ndev))
  77                 return -EBUSY;
  78
  79         if (h->kinfo.dcb_ops->ieee_delapp)
  80                 return h->kinfo.dcb_ops->ieee_delapp(h, app);
  81
  82         return -EOPNOTSUPP;
  83 }
  84
  85 /* DCBX configuration */
  86 static u8 hns3_dcbnl_getdcbx(struct net_device *ndev)
  87 {
  88         struct hnae3_handle *h = hns3_get_handle(ndev);
  89
  90         if (h->kinfo.dcb_ops->getdcbx)
  91                 return h->kinfo.dcb_ops->getdcbx(h);
  92
  93         return 0;
  94 }
  95
  96 /* return 0 if successful, otherwise fail */
  97 static u8 hns3_dcbnl_setdcbx(struct net_device *ndev, u8 mode)
  98 {
  99         struct hnae3_handle *h = hns3_get_handle(ndev);
 100
 101         if (h->kinfo.dcb_ops->setdcbx)
 102                 return h->kinfo.dcb_ops->setdcbx(h, mode);
 103
 104         return 1;
 105 }
 106
 107 static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
 108         .ieee_getets    = hns3_dcbnl_ieee_getets,
 109         .ieee_setets    = hns3_dcbnl_ieee_setets,
 110         .ieee_getpfc    = hns3_dcbnl_ieee_getpfc,
 111         .ieee_setpfc    = hns3_dcbnl_ieee_setpfc,
 112         .ieee_setapp    = hns3_dcbnl_ieee_setapp,
 113         .ieee_delapp    = hns3_dcbnl_ieee_delapp,
 114         .getdcbx        = hns3_dcbnl_getdcbx,
 115         .setdcbx        = hns3_dcbnl_setdcbx,
 116 };
 117
 118 /* hclge_dcbnl_setup - DCBNL setup
 119  * @handle: the corresponding vport handle
 120  * Set up DCBNL
 121  */
 122 void hns3_dcbnl_setup(struct hnae3_handle *handle)
 123 {
 124         struct net_device *dev = handle->kinfo.netdev;
 125
 126         if ((!handle->kinfo.dcb_ops) || (handle->flags & HNAE3_SUPPORT_VF))
 127                 return;
 128
 129         dev->dcbnl_ops = &hns3_dcbnl_ops;
 130 }