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From: | address@hidden |
Subject: | Re: [lwip-devel] Re: [task #7040] Work on tcp_enqueue |
Date: | Mon, 02 Feb 2009 17:27:58 +0100 |
User-agent: | Thunderbird 2.0.0.19 (Macintosh/20081209) |
bill wrote:
Did you do this as an instruction just to read the data and checksum where lwIP does now, or did you do a DMAing memcpy_chksum?
Both, but it turned out the FPGA had no room for the DMA+checksum hardware :-( However, the overhead of checksumming with the custom instruction is zero to normal memcpy, hence my introducing task #6849. Sadly, since the project got delayed a little, I'm not working on this right now...
Simon
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