* [DPDK/ethdev Bug 1443] net/af_packet: defragmented packet will be truncated when exceed the frame size
@ 2024-05-17 9:39 bugzilla
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From: bugzilla @ 2024-05-17 9:39 UTC (permalink / raw)
To: dev
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https://bugs.dpdk.org/show_bug.cgi?id=1443
Bug ID: 1443
Summary: net/af_packet: defragmented packet will be truncated
when exceed the frame size
Product: DPDK
Version: 23.03
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: 1204565380@qq.com
Target Milestone: ---
af_packet use packet fanout, set flag: PACKET_FANOUT_FLAG_DEFRAG, if set,
causes packets to be defragmented before fanout is applied, the packets that
read from AF_PACKET socket maybe larger than the frame size and the mbuf size,
so the packet will be truncated.
In PACKET_FANOUT mode, each matching packet is enqueued onto only one socket in
the group. But when af_packet use one rx queue, there is no need to set packet
fanout.
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