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ORGANIZER;CN="Mcnamara, John":mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Stokes, Ia
n":mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Pai G, Sun
il":mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Hu, Jiayu":
mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Ferriter,
Cian":mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Van Haaren
, Harry":mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Ilya Maxim
ets:mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Maxime Coq
uelin ([email protected]):mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=ovs-dev@op
envswitch.org:mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;[email protected]
rg:mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="O'Driscoll
, Tim":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Finn, Emma"
:mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Ralf Hoffm
ann:mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Harris, Ja
mes R":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Luse, Paul
E":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=hemal.shah
@broadcom.com:mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Gooch, Ste
phen":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Bing Zhao:
mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Wiles, Kei
th":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Prasanna M
urugesan (prasanna):mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Ananyev, K
onstantin":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Yu, De":mai
lto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Tom Barbet
te:mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Zeng, Zhic
haoX":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Knight, Jo
shua":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Scheurich,
Jan":mailto:[email protected]
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Sinai, Asa
f":mailto:[email protected]
DESCRIPTION;LANGUAGE=en-US:Updated with meeting and presentation.\n\nThis m
eeting is a follow-up to the previous calls in March and the discussion wh
ich has happened since on the DPDK and OVS mailing lists.\n\nThree approac
hes were presented in the previous calls:\n\n• "Defer work": Handl
e DMA completions at OVS PMD thread level\n• "v3": Handle DMA Tx c
ompletions from Rx context.\n• "v3 + lockless ring": Handle DMA Tx
completions from Rx context + lockless ring to avoid contention.\n\nAfter
these calls\, the discussion continued on the DPDK and OVS mailing lists\
, where an alternate approach has been proposed.\n\nThe newly-suggested ap
proach:\n\n• "DMA VirtQ Completions": Add an additional transactio
n(s) to each burst of DMA copies\; a special transaction containing the me
mory write operation that makes the descriptors available to the Virtio dr
iver. 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 architecture/designs.\n• Dis
cuss the strengths/weaknesses/feasibility of the "DMA VirtQ Completions" a
pproach\, comparing to current best-candidate "Defer Work".\n• Wor
k toward single-solution to be accepted upstream in DPDK and OVS\n\nSlides
: https://github.com/Sunil-Pai-G/OVS-DPDK-presentation-share/blob/main/ovs
_datapath_design_2022%20session%203.pdf\n\nGoogle Meet: https://meet.googl
e.com/hme-pygf-bfb\n\n\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:20220425T151916Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:1
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