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Altera_Forum's avatar
Altera_Forum
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14 years ago

no free buffers for rx

Hello How do i increase the receive buffer size.... till now i have done following... 1. increase the receive Depth of TSE Mac... 2. Increase the MAXBIGPKTS from 30 to 512 in "ipport.h" ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

One useful feature of TCP when the receiving CPU is a bit slow is the window size adjustment. It should make the source automatically reduce the transmit rate to give the destination enough time to process the data, without any packet loss.

IIRC a checksum on the UDP data contents is optional (at least on IPv4), so if the source doesn't provide UDP data checksum, optimizing the IP checksum routine won't speed things up a lot.