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ORGANIZER;CN="Mcnamara, John":mailto:john.mcnam...@intel.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Stokes, Ia
n":mailto:ian.sto...@intel.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Pai G, Sun
il":mailto:sunil.pa...@intel.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Hu, Jiayu":
mailto:jiayu...@intel.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Ferriter,
Cian":mailto:cian.ferri...@intel.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Van Haaren
, Harry":mailto:harry.van.haa...@intel.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Ilya Maxim
ets:mailto:i.maxim...@ovn.org
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Maxime Coq
uelin (maxime.coque...@redhat.com):mailto:maxime.coque...@redhat.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=ovs-dev@op
envswitch.org:mailto:ovs-...@openvswitch.org
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=dev@dpdk.o
rg:mailto:dev@dpdk.org
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="O'Driscoll
, Tim":mailto:tim.odrisc...@intel.com
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Finn, Emma"
:mailto:emma.f...@intel.com
DESCRIPTION;LANGUAGE=en-US:This meeting is a follow-up to the previous call
s in March and the discussion which has happened since on the DPDK and OVS
mailing lists.\n\nThree approaches were presented in the previous calls:\
n\n• "Defer work": Handle DMA completions at OVS PMD thread level\
n• "v3": Handle DMA Tx completions from Rx context.\n• "v3
+ lockless ring": Handle DMA Tx completions from Rx context + lockless ri
ng to avoid contention.\n\nAfter these calls\, the discussion continued on
the DPDK and OVS mailing lists\, where an alternate approach has been pro
posed.\n\nThe newly-suggested approach:\n\n• "DMA VirtQ Completion
s": Add an additional transaction(s) to each burst of DMA copies\; a speci
al transaction containing the memory write operation that makes the descri
ptors available to the Virtio driver. Also separate the actual kick of the
guest with the data transfer.\n\nAgenda for call 26th April:\n\n•
Intel team will present slides to help understand the differences in arch
itecture/designs.\n• Discuss the strengths/weaknesses/feasibility
of the "DMA VirtQ Completions" approach\, comparing to current best-candid
ate "Defer Work".\n• Work toward single-solution to be accepted up
stream in DPDK and OVS\n\nGoogle Meet link and slides to follow.\n\n\n\n
UID:040000008200E00074C5B7101A82E0080000000000DED7A59755D801000000000000000
0100000001E85284E2C159341818ACDC3087374E1
SUMMARY;LANGUAGE=en-US:OVS DPDK DMA-Dev library/Design Discussion
DTSTART;TZID=GMT Standard Time:20220426T140000
DTEND;TZID=GMT Standard Time:20220426T150000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20220421T145740Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:0
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