On Mon, Dec 16, 2013 at 01:41:42PM -0600, Felipe Balbi wrote: > by setting IOC always, we can recycle TRBs a > lot sooner at the expense of some increased > CPU load. > > The extra load seems to be quite minimal on > OMAP5 devices (instead of 1 IRQ for one MSC > transfer, we get > CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS). > > Signed-off-by: Felipe Balbi <ba...@ti.com> > --- > drivers/usb/dwc3/gadget.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c > index 5401b2b..4d72152 100644 > --- a/drivers/usb/dwc3/gadget.c > +++ b/drivers/usb/dwc3/gadget.c > @@ -778,7 +778,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, > > case USB_ENDPOINT_XFER_BULK: > case USB_ENDPOINT_XFER_INT: > - trb->ctrl = DWC3_TRBCTL_NORMAL; > + trb->ctrl = DWC3_TRBCTL_NORMAL > + | DWC3_TRB_CTRL_IOC;
maybe this should be conditional on !req->no_interrupt ?? -- balbi
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