Re: [dpdk-dev] [PATCH v3] doc: add known issue about legacy intr mode for ixgbe

Hi > > +Do not bind the ``uio_pci_generic`` module in X550 NICs. > > +Do not bind ``igb_uio`` with legacy mode in X550 NICs. > > +Before using ``vfio`` with legacy mode in X550 NICs, using ``modprobe > > +vfio `` ``nointxmask=1`` to bind ``vfio``. > > I have couple questions here. > If noinitxmas

Re: [dpdk-dev] [PATCH v3] doc: add known issue about legacy intr mode for ixgbe

> -Original Message- > From: Li, Xiaoyun > Sent: Sunday, September 30, 2018 10:53 AM > To: Xing, Beilei ; Zhang, Qi Z ; > dev@dpdk.org; Lu, Wenzhuo ; Wu, Jingjing > > Cc: Li, Xiaoyun > Subject: [PATCH v3] doc: add known issue about legacy intr mode for ixgbe > > When using uio_pci_gen

[dpdk-dev] [PATCH v3] doc: add known issue about legacy intr mode for ixgbe

When using uio_pci_generic module or using legacy interrupt mode of igb_uio or vfio, X550 cannot get interrupts. Because the Interrupt Status bit is not implemented, then the irq cannot be handled correctly and cannot report the event fd to DPDK apps. Add this hw limitation and details into ixgbe