it doesn't work if increase a little traffic for DMA read.

The unidirection DMA read only or write only of my PCIE NIC controller V5-based works fine .

However,if DMA read(from host--->ethernet port) is progress ,additional i send ping packet continuing from Host or client.the NIC will doesn't work.the send/receive is stoppped.

But,if DMA write(from ethernet --->host) is progress,additional i send ping packet continuing from Host or client. it still works fine.

who can provide any clue to debug the issue?

Reply to
water9580
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Probably someone with any information whatsoever about what hardware you're using, how it's wired up, what tools you're trying to implement this with, or what cores you're trying to work with. But who that would be is anyone's guess.

-- Rob Gaddi, Highland Technology Email address is currently out of order

Reply to
Rob Gaddi

devleopment board:Xilinx ML555,ISE10.1.1 .i don't use any IP core except for Xilinx PCIE GTP and ethernet PCS/PMA.

the river for lnx is ok.

Reply to
water9580

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