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>
This commit is contained in:
Patrick Delaunay 2020-04-22 14:18:25 +02:00 committed by Tom Rini
parent 7683b11098
commit 421de7fec8

View file

@ -44,5 +44,9 @@ config TFTP_BLOCKSIZE
default 1468
help
Default TFTP block size.
The MTU is typically 1500 for ethernet, so a TFTP block of
1468 (MTU minus eth.hdrs) provides a good throughput with
almost-MTU block sizes.
You can also activate CONFIG_IP_DEFRAG to set a larger block.
endif # if NET