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 /* 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 }