Or Gerlitz wrote:
Koen Segers wrote:
I just saw some patches on the mailing list concerning csum offloading.
Are these applied in RC3? Or are they going to be introduced in the
daily build of tomorrow?
Is it correct to state that these patches replace the hw_csum parameter
by offloading the csum computation to the mthca? This would mean that
the results should be similar also.
no and no, best if you take a look on the presentation @
http://openfabrics.org/archives/nov2007sc/IPoIB-UD%20SO.pdf
Basically the "checksum offloading" patches are for the datagram mode
and is the standard offload as in the Ethernet world, where the
"hw_csum" patch was for the connected mode.
Does the new offload patch depend on the type of hca being used?
According to lspci, we have the "InfiniBand: Mellanox Technologies
MT25208 InfiniHost III Ex (rev a0)" card. Do these patches work on a
sles 10 sp1 installed on x3755 and x3655 machines of IBM that have this
card inserted?
checksum offloading is supported by the connectx and some of the other
Mellanox devices, I am quite sure that 25208 is one of them, but you
have to clarify this with Mellanox
ConnectX and MT25208 InfiniHost III Ex supports IPoIB "checksum offloading"
Tziporet
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