Commit 6a7c7df9 authored by Dan Vacura's avatar Dan Vacura Committed by Greg Kroah-Hartman
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usb: dwc3: gadget: increase tx fifo size for ss isoc endpoints 



Improve performance of isoc transfers in superspeed by increasing the
number of possible endpoints available, matching that of what was
configured for bulk transfers.

Signed-off-by: default avatarDan Vacura <w36195@motorola.com>
Link: https://lore.kernel.org/r/20220420183338.445622-1-w36195@motorola.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a85f0230

drivers/usb/dwc3/gadget.c

+2 −1
Original line number Diff line number Diff line
@@ -782,7 +782,8 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) 
		num_fifos = 3;



	if (dep->endpoint.maxburst > 6 &&

	    usb_endpoint_xfer_bulk(dep->endpoint.desc) && DWC3_IP_IS(DWC31))

	    (usb_endpoint_xfer_bulk(dep->endpoint.desc) ||

	     usb_endpoint_xfer_isoc(dep->endpoint.desc)) && DWC3_IP_IS(DWC31))

		num_fifos = dwc->tx_fifo_resize_max_num;



	/* FIFO size for a single buffer */