From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753825AbdEQHtC (ORCPT ); Wed, 17 May 2017 03:49:02 -0400 Received: from mga09.intel.com ([134.134.136.24]:2801 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753010AbdEQHtA (ORCPT ); Wed, 17 May 2017 03:49:00 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.38,353,1491289200"; d="asc'?scan'208";a="262581744" From: Felipe Balbi To: Roger Quadros Cc: nsekhar@ti.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] usb: dwc3: gadget: Fix ISO transfer performance In-Reply-To: <0b5968b0-0451-b892-4798-4df33e2aac33@ti.com> References: <1492779488-15127-1-git-send-email-rogerq@ti.com> <0b5968b0-0451-b892-4798-4df33e2aac33@ti.com> Date: Wed, 17 May 2017 10:48:44 +0300 Message-ID: <87fug3x6sj.fsf@linux.intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi, Roger Quadros writes: > On 21/04/17 15:58, Roger Quadros wrote: >> Commit 08a36b543803 ("usb: dwc3: gadget: simplify __dwc3_gadget_ep_queue= ()") >> caused a small change in the way ISO transfer is handled in the case >> when XferInProgress event happens on Isoc EP with an active transfer. >> This caused a performance degradation of 50%. e.g. using g_webcam on DUT >> and luvcview on host the video frame rate dropped from 16fps to 8fps >> @high-speed. >>=20 >> Make the ISO transfer handling equivalent to that prior to that commit >> to get back the original ISO performance numbers. >>=20 >> Fixes: 08a36b543803 ("usb: dwc3: gadget: simplify __dwc3_gadget_ep_queue= ()") >> Signed-off-by: Roger Quadros > > Any comments? pull request coming shortly ;-) =2D-=20 balbi --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEElLzh7wn96CXwjh2IzL64meEamQYFAlkcAFwACgkQzL64meEa mQYQMRAAySynVNb6S2QtLScfWPOVhJXzDabWKmJ5h53rEPDphQGhWwAvv/fdhuoD Q1xwEs5VPGS14PQr+UuHsJFyNc483L3EKluDn8xXzHNj8CwjH717/5YZxBD7pijL DmkwTXo905adnHAqoSGESMlXNkz2zRm6xWxQ8QLlPSAv0GQG+IfrWyfNtvgxTnRS TP9m9/CsmKwGzTOYz3ikVYLy4LQI8ktOfb39cVLrQ0wWAkcKQyFbs45pMjpmFO14 d/NyfdUSJq5I+oBEmS0koEW9rEPCop34G+X5s7q4XNsoVnmqsu7xSzAv1dKJdBg2 GP1d8shaZgKBH+QseU0ObMTr+Ms/DRwJQRuNaovN7JLJGVc34mdQfwfpIeuopxZI K8Q66iLsE6rvbqaoaoWG+Ad4AP/qrJlGXRYVmFZBEZoN2picUjxteRgKpN+nWw1X 5DaIixqq7bmaCiKC4oiEdgkXOl7LKtsHd0wCdMKFH2XJjxdpY1BdCL2jbwleGyXa 2+4xyXec7dF5gpOfDWHmV20WW/upgEImP/UOXsUbm1rCBhsaSwt/8NbqkXFLJxNr iXkvhj259OUFQQSS1dqZIc3Ks/AuEiw303Y9BMiXgJraGjlDL6fANoRBmr2tiarj rUBUy6JTQEIg5fN2EwYO3Otaj3PsstbrrnFTcdoLrtaHuwxjq7o= =ZYb+ -----END PGP SIGNATURE----- --=-=-=--