Re: [HOWTO] accessing the DMA mapped data

From: Roland Dreier
Date: Thu May 10 2007 - 14:28:12 EST


> Here I am dealing with a infiniband (see www.openfabrics.org)
> network device driver. The layer above the driver is the standard
> infiniband core interface. Now I have a situation where I need to
> peek into the packets and do some modifications(some hacking). So I
> just want know whether I can access the original data region using
> the bus address generated by the dma_map_single.

If you give more details about what you're trying to do, maybe I can
suggest a good way to accomplish it.

Also for IB-related stuff you may want to at least CC
<general@xxxxxxxxxxxxxxxxxxxxx> to get the best info.
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