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
   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 }