[dpdk-dev] [PATCH v3] net/virtio: fix rxq intr config fails using vfio-pci
Tan, Jianfeng
jianfeng.tan at intel.com
Thu Nov 9 05:40:13 CET 2017
On 11/9/2017 12:01 PM, Yang, Zhiyong wrote:
>>> static int
>>> +virtio_intr_enable(struct rte_eth_dev *dev) {
>>> + struct virtio_hw *hw = dev->data->dev_private;
>>> +
>>> + if (rte_intr_enable(dev->intr_handle) < 0)
>>> + return -1;
>>> +
>>> + if (!hw->virtio_user_dev)
>>> + hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
>> Maybe we can check hw->use_msix as an additional check; if it does not equal
>> VIRTIO_MSIX_ENABLE, returns -1.
>>
> From my understanding, it is unnecessary.
> Functionality of virtio_intr_enable should be generic.
> Igb_uio or other can use it. it should be no harm to others.
> we add msix detect here in order to just get use_msix status.
Fair enough.
>
> Thanks
> Zhiyong
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