[openib-general] [PATCH] ib_mad.c: Fix request/response matching

[Sean Hefty]

On Tue, 05 Oct 2004 13:59:37 -0700
Roland Dreier <roland at topspin.com> wrote:

>     Hal> Good point. We will need more than access to the TID for
>     Hal> RMPP. We need a replacement for bus_to_virt. Is there an
>     Hal> "approved" way to get from DMA address to VA ?
> 
> No, you just need to save off the VA if you need to use it later.  So
> maybe we need to add a pointer to the MAD header in ib_send_wr.wr.ud.

Would we need multiple VAs if scatter-gather is used by the client?