On Fri, Dec 25, 2015 at 02:38:08AM +0800, Huawei Xie wrote: > virtio PMD doesn't set RTE_PCI_DRV_NEED_MAPPING in drv_flags of its > eth_driver. It will try igb_uio and PORT IO in turn to configure > virtio device. Even user in guest VM doesn't want to use virtio for > DPDK, virtio PMD will take over the device blindly. > > The more serious problem is kernel driver is still manipulating the > device, which causes driver conflict. > > This patch checks if there is any kernel driver manipulating the > virtio device before virtio PMD uses port IO to configure the device. > > Huawei Xie (4): > eal: make the comment more accurate > eal: set kdrv to RTE_KDRV_NONE if kernel driver isn't manipulating the > device. > virtio: return 1 to tell the kernel we don't take over this device > virtio: check if any kernel driver is manipulating the virtio device
Thanks for the patch. Looks good to me. Peter > > drivers/net/virtio/virtio_ethdev.c | 15 +++++++++++++-- > lib/librte_eal/common/eal_common_pci.c | 8 ++++---- > lib/librte_eal/linuxapp/eal/eal_pci.c | 2 +- > 3 files changed, 18 insertions(+), 7 deletions(-) > > -- > 1.8.1.4 >
