Hi, > -----Original Message----- > From: linux-usb-owner@xxxxxxxxxxxxxxx [mailto:linux-usb- > owner@xxxxxxxxxxxxxxx] On Behalf Of Gupta, Ajay Kumar > Sent: Tuesday, March 23, 2010 2:39 PM > To: Matthieu CASTET; Pandita, Vikram > Cc: felipe.balbi@xxxxxxxxx; matthieu castet; linux-usb@xxxxxxxxxxxxxxx; > Alan Stern > Subject: RE: [RFC] gadget ethernet dma align fix > > Hi, > > > > Works fine: > > > > With the alignment fix in the MUSB controller driver [2] rather than > > g- > > > ether, > > > > the problem with ping size >= 1471 is not observed. > > > > > > > I found the problem. I was on rx path were skb->len were wrong. > > > > > > I attach a new patch that fix the issue. > > > > Thanks for updated patch. It does fix the ping issue for packet size > > Beyond 1470+. > > Though it (v4-patch)fixes ping beyond 1470 but I still observed iperf > failing. I ran iperf in windows in server mode (iperf.exe -s) and in > client mode on OMAP3630EVM. Looks like it related to caching after memmove. I used flush_cache_all() Soon after memmove() and issue goes away but with reduced throughput. Ajay > > Ajay > -- > 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 -- 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
