On Fri, 2008-06-27 at 12:37 +0400, Sergei Shtylyov wrote: > Hello. > > Benjamin Herrenschmidt wrote: > > The main one is that one their latest cell, they do the following > > "workarounds" which I never implemented in drivers/ide/ppc/pmac.c but > > I'd like to implement in the libata driver, unless you believe that is > > unnecessary: > > > > a) For any ATAPI DMA, If the transfer size is not a multiple of 16 > > bytes, switch to PIO for this command. > > > > No need to do this in old driver anyway since the *IDE* core only > uses DMA for block commands like READ and WRITE. > Not sure about libata. It doesn't use DMA to transfer the bulk of ATAPI ? I know it uses PIO for the CDB but the rest of the transfer isn't done with DMA ? Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
