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net: tftp: Add help for CONFIG_TFTP_BLOCKSIZE
Add help message for the CONFIG_TFTP_BLOCKSIZE default value,
as explain in tftp.c before migration in commit b618b37076
("net: Convert CONFIG_TFTP_BLOCKSIZE to Kconfig")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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@ -44,5 +44,9 @@ config TFTP_BLOCKSIZE
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default 1468
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help
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Default TFTP block size.
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The MTU is typically 1500 for ethernet, so a TFTP block of
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1468 (MTU minus eth.hdrs) provides a good throughput with
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almost-MTU block sizes.
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You can also activate CONFIG_IP_DEFRAG to set a larger block.
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endif # if NET
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