Quoting r. Roland Dreier <[EMAIL PROTECTED]>: > Subject: Re: [PATCH][16/26] IB/mthca: mem-free doorbell record writing > > Jeff> Well, we don't just add code to "hope and pray" for an event > Jeff> that nobody is sure can even occur... > > The hardware requires that if the record is written in two 32-bit > chunks, then they must be written in order. Of course the hardware > probably won't be reading just as we're writing, so almost all of the > time we won't notice the problem.
Its not necessarily related to reads. writes must arrive in order, even if the card is not reading at that time. -- MST - Michael S. Tsirkin _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
