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charset="us-ascii" Content-Transfer-Encoding: quoted-printable -----Original Appointment----- From: Stokes, Ian Sent: Thursday, March 24, 2022 3:37 PM To: Stokes, Ian; Pai G, Sunil; Hu, Jiayu; Ferriter, Cian; Van Haaren,= Harry; Ilya Maximets; Maxime Coquelin (maxime.coquelin@redhat.com); ovs-de= v@openvswitch.org; dev@dpdk.org Cc: Mcnamara, John; O'Driscoll, Tim; Finn, Emma Subject: OVS DPDK DMA-Dev library/Design Discussion When: 29 March 2022 14:00-15:00 (UTC+00:00) Dublin, Edinburgh, Lisbon= , London. Where: Google Meet Hi All, This meeting is a follow up to the call earlier this week. This week Sunil presented 3 different approaches to integrating DMA-D= ev with OVS along with the performance impacts. https://github.com/Sunil-Pai-G/OVS-DPDK-presentation-share/blob/main/= OVS%20vhost%20async%20datapath%20design%202022.pdf The approaches were as follows: * Defer work. * Tx completions from Rx context. * Tx completions from Rx context + lockless ring. The pros and cons of each approach were discussed but there was no cl= ear solution reached. As such a follow up call was suggested to continue discussion and to = reach a clear decision on the approach to take. Please see agenda as it stands below: Agenda * Opens * Continue discussion of 3x approaches from last week (Defer work, "V= 3", V4, links to patches in Sunil's slides above) * Design Feedback (please review solutions of above & slide-deck from= last week before call to be informed) * Dynamic Allocation of DMA engine per queue * Code Availability (DPDK GitHub, OVS GitHub branches) Please feel free to respond with any other items to be added to the a= genda. Google Meet: https://meet.google.com/hme-pygf-bfb Regards Ian --_000_DM6PR11MB3227B4CFCE020207D8F29723FCF49DM6PR11MB3227namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
 
 
-----Original Appointment-----
From: Stokes, Ian <ian.stokes@intel.com>
Sent: Thursday, March 24, 2022 3:37 PM
To: Stokes, Ian; Pai G, Sunil; Hu, Jiayu; Ferriter, Cian; Van Haaren= , Harry; Ilya Maximets; Maxime Coquelin (maxime.coquelin@redhat.com); ovs-d= ev@openvswitch.org; dev@dpdk.org
Cc: Mcnamara, John; O'Driscoll, Tim; Finn, Emma
Subject: OVS DPDK DMA-Dev library/Design Discussion
When: 29 March 2022 14:00-15:00 (UTC+00:00) Dublin, Edinburgh, Lisbo= n, London.
Where: Google Meet
 
 
Hi All,
 
This meeting is a follow up to the call e= arlier this week.
 
This week Sunil presented 3 different app= roaches to integrating DMA-Dev with OVS along with the performance impacts.=
 
 
The approaches were as follows:
 
  • Defer work.
  • Tx completions from Rx context.
  • Tx completi= ons from Rx context + lockless ring.
 
The pros and cons of each approach were d= iscussed but there was no clear solution reached.
 
As such a follow up call was suggested to= continue discussion and to reach a clear decision on the approach to take.=
 
Please see agenda as it stands below:
 
Agenda
  • Opens
  • Continue discussion of 3x approaches from last week (Defe= r work, “V3”, V4, links to patches in Sunil’s slides abov= e)
  • Design Feedback (please review solutions of above &a= mp; slide-deck from last week before call to be informed)
  • Dynamic Allocation of DMA engine per queue
  • Code Availability (= DPDK GitHub, OVS GitHub branches)
 
Please feel free to respond with any othe= r items to be added to the agenda.
 
 
Regards
Ian
 
 --_000_DM6PR11MB3227B4CFCE020207D8F29723FCF49DM6PR11MB3227namp_--