inconsistent wget behavior

[Fabio Estevam]

[Adding Tom and Marek]

On Wed, Nov 8, 2023 at 7:22 PM Tim Harvey <tharvey at gateworks.com> wrote:
>
> Greetings,
>
> I've recently given wget/tcp a try and find the results inconsistent.
>
> Transferring the same file 15 times in a row will eventually give me
> an incomplete transfer with packet/byte count wrong but showing
> 'Transfer Successful'.
>
> Here is current master on an imx8mp-venice-gw74xx board using IMX8MP
> EQOS enet dev:
>

> u-boot=> time wget $loadaddr
> /tftpboot/venice/core-image-minimal.ext4.gz && md5sum $loadaddr
> $filesize
> HTTP/1.0 200 OK| | | | | | | | | | | | | | | | | | | | | | | | | | | |
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> Packets received 64368, Transfer Successful
> Bytes transferred = 93198937 (58e1a59 hex)
>
> time: 3.103 seconds
> md5 for 48200000 ... 4dae1a58 ==> 69bedfe899148c43c09a98ac950dd0ed

....
> u-boot=> time wget $loadaddr
> /tftpboot/venice/core-image-minimal.ext4.gz && md5sum $loadaddr
> $filesize
> HTTP/1.0 200 OK| | | | | | | | | | | | | | | | | | | | | | | | | | | |
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> | | | | | |
> Packets received 64368, Transfer Successful
> Bytes transferred = 26984682 (19bc0ea hex)
>
> time: 3.011 seconds
> md5 for 48200000 ... 49bbc0e9 ==> c9978ff116605a7729a1cb14ef51fc20
>
> Anyone else seeing this?

Yes, I am seeing the same behavior on an imx8mn board using the FEC driver.

I am transferring a 412MB file. Doing the wget transfers several times
in a row, I also see the incorrect number of bytes transferred:

u-boot=> wget test
HTTP/1.0 200 OK| | | | | | | | | | | | | | | | | | | | | | | | | | | |
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Packets received 298387, Transfer Successful
Bytes transferred = 432013312 (19c00000 hex)

u-boot=> wget test
HTTP/1.0 200 OK| | | | | | | | | | | | | | | | | | | | | | | | | | | |
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Packets received 298375, Transfer Successful
Bytes transferred = 58355848 (37a7088 hex)