>> No, there is no need to change default state. State can be changed during >> runtime... That part I understand. I realized that AVF supports MSIX interrupts hence native plugin can easily leverage this feature (provided hardware supports MSIX per RQ)
Thanks, Nitin From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Damjan Marion via Lists.Fd.Io Sent: Wednesday, February 5, 2020 2:32 PM To: Nitin Saxena <nsax...@marvell.com> Cc: vpp-dev@lists.fd.io Subject: Re: [EXT] Re: [vpp-dev] Regarding unix_epoll_input on worker cores No, there is no need to change default state. State can be changed during runtime... — Damjan On 5 Feb 2020, at 09:54, Nitin Saxena <nsax...@marvell.com<mailto:nsax...@marvell.com>> wrote: Thanks Damjan. Then I think there will be plan to change default state of INPUT nodes from POLLING to INTERRUPTIBLE. I think it is required to enable this feature at some point. Thanks, Nitin From: Damjan Marion <dmar...@me.com<mailto:dmar...@me.com>> Sent: Wednesday, February 5, 2020 2:00 PM To: Nitin Saxena <nsax...@marvell.com<mailto:nsax...@marvell.com>> Cc: vpp-dev <vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io>> Subject: [EXT] Re: [vpp-dev] Regarding unix_epoll_input on worker cores External Email ________________________________ There are 2 use cases: - delivering RX queue interrupts directpy to the worker which handles specific queue - waking up worker thread over eventfd None of them is used today, but it should be at some point... -- DAmjan On 5 Feb 2020, at 08:39, Nitin Saxena <nsax...@marvell.com<mailto:nsax...@marvell.com>> wrote: Hi, I understand the purpose of unix-epoll-input PRE_INPUT node on main thread but I am not able to envision why it is required on worker core. The way I see it all clib_file_xx() operations are on main core. It will be helpful if any scenario can be explained where presence of unix-epoll-input() on worker core solves the purpose Thanks, Nitin -- Damjan
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