Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix device hotplug remove

["Di, ChenxuX" <chenxux.di@intel.com>]

> -----Original Message-----
> From: Ye, Xiaolong
> Sent: Monday, November 11, 2019 5:00 PM
> To: Di, ChenxuX <chenxux.di@intel.com>
> Cc: dev@dpdk.org; Yang, Qiming <qiming.yang@intel.com>
> Subject: Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix device hotplug remove
> 
> On 11/11, Di, ChenxuX wrote:
> >Hi,
> >
> >> -----Original Message-----
> >> From: Ye, Xiaolong
> >> Sent: Monday, November 11, 2019 4:42 PM
> >> To: Di, ChenxuX <chenxux.di@intel.com>
> >> Cc: dev@dpdk.org; Yang, Qiming <qiming.yang@intel.com>
> >> Subject: Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix device hotplug
> >> remove
> >>
> >> On 11/07, Di ChenxuX wrote:
> >> >testpmd will occur infinite loops when device hotplug remove.
> >> >We can fix the issue by using the pci generic remove function
> >> >
> >> >Fixes: f2f4990eff94 ("net/ixgbe: release port upon close")
> >> >
> >> >Signed-off-by: Di ChenxuX <chenxux.di@intel.com>
> >> >
> >> >v2:
> >> >reverted the code about ixgbe_vf_representor_uninit.
> >> >---
> >> > drivers/net/ixgbe/ixgbe_ethdev.c | 5 +++--
> >> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >> >
> >> >diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> >> b/drivers/net/ixgbe/ixgbe_ethdev.c
> >> >index dbce7a80e..7ec55a4de 100644
> >> >--- a/drivers/net/ixgbe/ixgbe_ethdev.c
> >> >+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> >> >@@ -1800,12 +1800,13 @@ static int eth_ixgbe_pci_remove(struct
> >> rte_pci_device *pci_dev)
> >> >
> >> > 	ethdev = rte_eth_dev_allocated(pci_dev->device.name);
> >> > 	if (!ethdev)
> >> >-		return -ENODEV;
> >> >+		return 0;
> >> >
> >> > 	if (ethdev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR)
> >> > 		return rte_eth_dev_destroy(ethdev,
> >> ixgbe_vf_representor_uninit);
> >>
> >> Can we use rte_eth_dev_pci_generic_remove for vf representor as well?
> >>
> >
> >I think it can be used. Should I do it and send a new patch?
> 
> Yes, please send a new patch after verification, and don't forget to remove
> rte_eth_dev_allocated check int eth_ixgbe_pci_remove, since it has been
> contained in rte_eth_dev_pci_generic_remove.
> 

Ok,I will prepare new patch.
 however the ethdev->data->dev_flags need to be check, I don't think rte_eth_dev_allocated 
Can be removed.

Thx
Di Chenxu

> Same for i40e patch.
> 
> Thanks,
> Xiaolong
> 
> >
> >Thx
> >Di Chenxu
> >
> >> Thanks,
> >> Xiaolong
> >> > 	else
> >> >-		return rte_eth_dev_destroy(ethdev, eth_ixgbe_dev_uninit);
> >> >+		return rte_eth_dev_pci_generic_remove(pci_dev,
> >> >+						eth_ixgbe_dev_uninit);
> >> > }
> >> >
> >> > static struct rte_pci_driver rte_ixgbe_pmd = {
> >> >--
> >> >2.17.1
> >> >