Hi Anand, Could you tell me where can I get this patch? Many Thanks Cliff On Fri, Apr 2, 2010 at 9:11 AM, Cliff Cai <cliffcai.sh@xxxxxxxxx> wrote: > On Thu, Apr 1, 2010 at 7:32 PM, Gadiyar, Anand <gadiyar@xxxxxx> wrote: >>> Currently,the RX DMA MODE1 is setup only after a packet has sit in the RX fifo. >>> I just wonder if this way works?I was told that MODE1 should be setup before >>> receiving the first packet,or we have to setup MODE 0 to unload the >>> first packet and then >>> switch to MODE1 for the remaining packets. >>> >> >> Hi Cliff, >> >> This part is a little unclear in the spec, but it does indeed work. >> >> I'll send out a much smaller hack patch that demonstrates how mode1 RX >> works when programmed after a packet is already in the fifo - it can >> be used with g_zero or g_filestorage, and you can actually see >> the throughput improvement and reduced interrupt count. >> >> There is only one corner case that I could not take care of, that's >> why we cannot use this hack patch with all drivers >> (most of the code in the patch is already in the driver under >> the #ifdef USE_MODE_1 macro) >> >> The series Felipe posted is a complete rewrite of the MUSB code. >> When we're going to take that, I'd like a thorough review first. >> It takes care of the corner case I was hitting though, and seems >> to work with all gadgets on OMAPs at least. >> >> >> - Anand > > Hi Anand, > > Look forward to seeing the patch. > > Thanks > > Cliff > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
