From: Simon Glass sjg@chromium.org To: Duncan Hare dh@synoia.com Cc: Wolfgang Denk wd@denx.de; U-Boot Mailing List u-boot@lists.denx.de; Joe Hershberger joe.hershberger@ni.com Sent: Wednesday, April 25, 2018 4:44 PM Subject: Re: [PATCH v10 3/3] Adding wget
Hi Duncan,
On 25 April 2018 at 08:33, Duncan Hare dh@synoia.com wrote: ____________________
From: Simon Glass sjg@chromium.org To: Duncan Hare dh@synoia.com Cc: U-Boot Mailing List u-boot@lists.denx.de; Joe Hershberger joe.hershberger@ni.com Sent: Tuesday, April 24, 2018 10:01 PM Subject: Re: [PATCH v10 3/3] Adding wget
Hi Duncan,
On 22 April 2018 at 21:22, Duncan Hare dh@synoia.com wrote:
The server can be tested with the wget command which can be installed on linux. I doubt that loop-back like this will produce the scrambling of packet order which is a feature of push down stacks for packet queues in the internet.
Hence my comment in a different thread about buffering on the pi. Few of the socs appear to use net_pkt_buf buffers for net traffic.
If there are too many transmission errors the sending tcp drops the connection. My solution to this is to halve the size of CONFIG_SYS_RX_ETH_BUFFER until transmission works.
Possibly CONFIG_SYS_RX_ETH_BUFFER could come under Kconfig.
Just to be clear, I was wondering about having an automated test. Manual
tests are not very useful since people won't do them. See 'make tests' for all the test that we >currently >run. I'm pretty sure you could standard up a little server, run your wget, then shut it down, all within a pytest test.
Regards, Simon
Hi Wolfgang. Simon
Can we put a test 4 Mbyte kernel on the u-boot website for an automated test for other users of TCP & Wget in u-boot?
Then I can produce a standard u-boot script for testing.
How about the test just creates a little (4KB) file. We don't want the tests to access a real network, if possible, just use localhost.
Regards, Simon
4k is 4 packets. I believe most kernels are larger. I was think of a static server set up with a known dns name. Thta's what I've got.
Do the test setup once.