mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-18 13:08:08 +07:00
257e4f2994
While hclge is going to reset, it will notify its client with HNAE3_DOWN_CLIENT, so this client should get into a resetting status from this moment, other operations from the stack need to be blocked as well. And when the reset is finished, the client will be notified with HNAE3_UP_CLIENT, so this is the end of the resetting status. This patch uses HNS3_NIC_STATE_RESETTING flag to implement that, and adds hns3_nic_resetting() to indicate which operation is not allowed. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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// Copyright (c) 2016-2017 Hisilicon Limited.
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#include "hnae3.h"
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#include "hns3_enet.h"
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static
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int hns3_dcbnl_ieee_getets(struct net_device *ndev, struct ieee_ets *ets)
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{
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struct hnae3_handle *h = hns3_get_handle(ndev);
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if (hns3_nic_resetting(ndev))
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return -EBUSY;
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if (h->kinfo.dcb_ops->ieee_getets)
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return h->kinfo.dcb_ops->ieee_getets(h, ets);
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return -EOPNOTSUPP;
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}
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static
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int hns3_dcbnl_ieee_setets(struct net_device *ndev, struct ieee_ets *ets)
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{
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struct hnae3_handle *h = hns3_get_handle(ndev);
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if (hns3_nic_resetting(ndev))
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return -EBUSY;
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if (h->kinfo.dcb_ops->ieee_setets)
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return h->kinfo.dcb_ops->ieee_setets(h, ets);
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return -EOPNOTSUPP;
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}
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static
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int hns3_dcbnl_ieee_getpfc(struct net_device *ndev, struct ieee_pfc *pfc)
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{
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struct hnae3_handle *h = hns3_get_handle(ndev);
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if (hns3_nic_resetting(ndev))
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return -EBUSY;
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if (h->kinfo.dcb_ops->ieee_getpfc)
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return h->kinfo.dcb_ops->ieee_getpfc(h, pfc);
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return -EOPNOTSUPP;
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}
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static
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int hns3_dcbnl_ieee_setpfc(struct net_device *ndev, struct ieee_pfc *pfc)
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{
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struct hnae3_handle *h = hns3_get_handle(ndev);
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if (hns3_nic_resetting(ndev))
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return -EBUSY;
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if (h->kinfo.dcb_ops->ieee_setpfc)
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return h->kinfo.dcb_ops->ieee_setpfc(h, pfc);
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return -EOPNOTSUPP;
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}
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/* DCBX configuration */
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static u8 hns3_dcbnl_getdcbx(struct net_device *ndev)
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{
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struct hnae3_handle *h = hns3_get_handle(ndev);
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if (h->kinfo.dcb_ops->getdcbx)
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return h->kinfo.dcb_ops->getdcbx(h);
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return 0;
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}
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/* return 0 if successful, otherwise fail */
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static u8 hns3_dcbnl_setdcbx(struct net_device *ndev, u8 mode)
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{
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struct hnae3_handle *h = hns3_get_handle(ndev);
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if (h->kinfo.dcb_ops->setdcbx)
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return h->kinfo.dcb_ops->setdcbx(h, mode);
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return 1;
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}
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static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
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.ieee_getets = hns3_dcbnl_ieee_getets,
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.ieee_setets = hns3_dcbnl_ieee_setets,
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.ieee_getpfc = hns3_dcbnl_ieee_getpfc,
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.ieee_setpfc = hns3_dcbnl_ieee_setpfc,
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.getdcbx = hns3_dcbnl_getdcbx,
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.setdcbx = hns3_dcbnl_setdcbx,
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};
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/* hclge_dcbnl_setup - DCBNL setup
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* @handle: the corresponding vport handle
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* Set up DCBNL
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*/
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void hns3_dcbnl_setup(struct hnae3_handle *handle)
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{
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struct net_device *dev = handle->kinfo.netdev;
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if ((!handle->kinfo.dcb_ops) || (handle->flags & HNAE3_SUPPORT_VF))
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return;
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dev->dcbnl_ops = &hns3_dcbnl_ops;
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}
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