tftp: add support of blksize option to client #62
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The TFTP protocol uses a default block size of 512 bytes. This value is sub-optimal for ethernet devices, which have a MTU (Maximum Transmission Unit) of 1500 bytes. When taking into acount the overhead of the IP and UDP layers, this leaves 1468 bytes for the TFTP payload. This patch introduces a new function: tftp_client_set_blksize() which may be used to change the block size from the default. It has to be called after tftp_client_init() and before tftp_get(). If the server does not support the option, the client will still accept to receive 512-byte blocks. Signed-off-by: Jerome Forissier <[email protected]> [For a fix in find_option()] Co-developed-by: Heinrich Schuchardt <[email protected]> Link: https://source.denx.de/u-boot/u-boot/-/commit/27d7ccda94f Link: https://source.denx.de/u-boot/u-boot/-/commit/10917df17f2
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The TFTP protocol uses a default block size of 512 bytes. This value is sub-optimal for ethernet devices, which have a MTU (Maximum Transmission Unit) of 1500 bytes. When taking into acount the overhead of the IP and UDP layers, this leaves 1468 bytes for the TFTP payload.
This patch introduces a new function: tftp_client_set_blksize() which may be used to change the block size from the default. It has to be called after tftp_client_init() and before tftp_get(). If the server does not support the option, the client will still accept to receive 512-byte blocks.
[For a fix in find_option()]
Co-developed-by: Heinrich Schuchardt [email protected]
Link: https://source.denx.de/u-boot/u-boot/-/commit/27d7ccda94f Link: https://source.denx.de/u-boot/u-boot/-/commit/10917df17f2