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* [dpdk-dev] [Bug 373] i40e: TSO breaks for packets larger than 16k
@ 2019-12-02 12:14 bugzilla
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From: bugzilla @ 2019-12-02 12:14 UTC (permalink / raw)
  To: dev


            Bug ID: 373
           Summary: i40e: TSO breaks for packets larger than 16k
           Product: DPDK
           Version: 19.08
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: joerg.dpdk@thalheim.io
  Target Milestone: ---

According to the linux kernel the maximum buffer size per descriptor is 16k
Buffers beyond that size are distributed over multiple descriptors:

DPDK however does not perform this distribution:

This results in DPDK stop processing packets once a buffer larger 16k is

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2019-12-02 12:14 [dpdk-dev] [Bug 373] i40e: TSO breaks for packets larger than 16k bugzilla

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