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Question 3CXFE575BT sending with no flow control? 

Forum: 3Com PCMCIA Ethernet Adapter Issues
Date: 2000, Jul 30
From: Roberto Jung Drebes <>

Hi there,

My 3CXFE575BT is still crazy when it has to send data in a burst, giving me the "Tx Ring full, refusing to send buffer" error. It works ok when I'm receiving HTTP, FTP traffic, and it's even ok when I'm sending or receiving ssh traffic, but I just need to start a bursty data transfer leaving the machine to get the error. I'm now using pcmcia-cs-3.1.19, kernel 2.2.16, have tried using all combinations of pci_int and pci_csc in PCIC_OPTs, with no success. The brige is: 00:11.0 CardBus bridge: Texas Instruments PCI1220 (rev 02)

Well, first, is there any information I can get from the error message? Like, why the buffer is getting full? I know nothing about TCP, but why isn't the flow control working (I belive there is something like a sliding window in TCP)? Or a debug mode (The i82365 man page says something of pc_debug parameter, but only when the module is compiled with debug info, how do I do it?)

If there is no easy fix, and I think it really doesn't have since I'm having this problem for a long time, I would like to have some information on using PCMCIA with 2.3/4 kernels. I remember seeing that some PCMCIA support was included in the kernel in such versions, so does this make the pcmcia-cs useless? Or do they work together? If so, should I do the same, ie, unpack it, ./Configure && make all ?

Thanks in advance,

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