On Thu, 20 May 2021 14:19:13 -0700 Sudharshan Krishnakumar <sudhar.ckris...@gmail.com> wrote:
> Thanks for your inputs. So, does this mean, when ports are bound to VFIO > driver(which uses IOMMU), we can > run 2 DPDK apps concurrently, only if the 2 apps are accessing ports on 2 > different Network cards. > In other words, when ports are bound to VFIO driver, if 2 DPDK apps are > running concurrently on the same system, > then we need 2 Network cards installed on that system. > So, I am guessing with 2 Network cards, under /dev, they would enumerate as > 2 distinct paths, for example-> /dev/vfio/1 and /dev/vfio/2. > Is this a correct understanding, please let me know. Groups are explained here. https://www.kernel.org/doc/Documentation/vfio.txt The VFIO is about isolation and if two processes are trying to use the same group they are not isolated.
