Re: [dpdk-dev] A Question about the necessity of DPDK VF for Ethernet PMDs

2019-02-04 Thread Alejandro Lucero
On Mon, Feb 4, 2019 at 12:19 PM Rami Rosen wrote: > Hi, Alejandro, > > Thanks for you quick response. > > >When SRIOV is used by VMs, the slow path will always be faster (and > >with lower latency) with DPDK. > > Yes, I am referring primarily to the SRIOV case in my question, when > assigning PCI

Re: [dpdk-dev] A Question about the necessity of DPDK VF for Ethernet PMDs

2019-02-04 Thread Rami Rosen
Hi, Alejandro, Thanks for you quick response. >When SRIOV is used by VMs, the slow path will always be faster (and >with lower latency) with DPDK. Yes, I am referring primarily to the SRIOV case in my question, when assigning PCI VF to a VM (most likely QEMU VM) Can you please explain what you m

Re: [dpdk-dev] A Question about the necessity of DPDK VF for Ethernet PMDs

2019-02-04 Thread Alejandro Lucero
On Mon, Feb 4, 2019 at 10:44 AM Rami Rosen wrote: > Hi Alejandro, > > >Your concern is related to this thread > > Thanks for your reply, I was aware of this thread. > OK > Still, I am not sure, in current kernels and currently available Ethernet > DPDK PMDs about the answer to my queries (I don

Re: [dpdk-dev] A Question about the necessity of DPDK VF for Ethernet PMDs

2019-02-04 Thread Rami Rosen
Hi Alejandro, >Your concern is related to this thread Thanks for your reply, I was aware of this thread. Still, I am not sure, in current kernels and currently available Ethernet DPDK PMDs about the answer to my queries (I don't think this mail thread gives info about it), like about what are th

Re: [dpdk-dev] A Question about the necessity of DPDK VF for Ethernet PMDs

2019-02-04 Thread Alejandro Lucero
Hi Rami, Your concern is related to this thread: http://mails.dpdk.org/archives/dev/2019-January/123466.html I'm working on solving the problem when PF needs to be bound to VFIO. My proposal is to use mediated devices. Although it is not strictly necessary to rely on current kernel WiP about VFI

[dpdk-dev] A Question about the necessity of DPDK VF for Ethernet PMDs

2019-02-03 Thread Rami Rosen
Hello all, Now that DPDK 19.02 was released three days ago (on time!!), hopefully there will be time for people to answer the following question: According to the "DPDK Getting Started Guide", "If UEFI secure boot is enabled, the Linux kernel may disallow the use of UIO on the system. T