From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sarah Sharp Subject: Re: [RFC/PATCH 0/4] UASP device driver Date: Mon, 14 Feb 2011 10:31:25 -0800 Message-ID: <20110214183125.GC4059@xanatos> References: <1295595794-23194-1-git-send-email-tlinder@codeaurora.org> <20110211224703.GC9008@xanatos> <000001cbcb49$8bba88e0$a32f9aa0$@org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga09.intel.com ([134.134.136.24]:15230 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751223Ab1BNSb3 (ORCPT ); Mon, 14 Feb 2011 13:31:29 -0500 Content-Disposition: inline In-Reply-To: <000001cbcb49$8bba88e0$a32f9aa0$@org> Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: Tanya Brokhman Cc: gregkh@suse.de, linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, willy@linux.intel.com Hi Tanya, On Sun, Feb 13, 2011 at 08:45:01AM +0200, Tanya Brokhman wrote: > Hi Sarah > > We are using the following for testing UAS gadget: > 1. Internally developed Unittest FW. We're planning to share this code as > well as soon as we get legal approval for that. > 2. A testing application (and driver) we purchased from MCCI called MSDVT. > 3. The UAS host from 2.6.37. Now we upgraded to v2.6.38-rc3 I'm Ccing Matthew Wilcox, who has been working on the UAS driver. He can give you the details about what works on the UAS protocol side, and I can help with any USB/xHCI issues you have. > We've been having some issues with the UAS host and while debugging I've > noticed that the TM are not implemented yet (I looked at v2.6.38-rc3). Is > there is a later version/another git tree you can recommend? What sort of issues are you having? Care to post a dmesg? I have a Lecroy USB 3.0 analyzer, so if you need to send any bus traces, I can view them. As for the latest version, I think 2.6.38-rc3 is the latest version of the UAS phone. > Actually, right now we almost finished the development and our concentration > is on testing. My plan is to make the code a bit more stable and upload a > full version. Great! > I would appreciate if you, or one of your UAS developers could review and > provide us with your inputs on the design. I'm not a gadget side expert, but I can look over the general architecture. How many streams can your code handle? The current UAS driver will handle a fairly large number (253?), but it can't take advantage of parallel SCSI command submissions unless the device side advertises it can handle many commands in parallel. Sarah Sharp > > -----Original Message----- > > From: Sarah Sharp [mailto:sarah.a.sharp@linux.intel.com] > > Sent: Saturday, February 12, 2011 12:47 AM > > To: Tatyana Brokhman > > Cc: gregkh@suse.de; linux-arm-msm@vger.kernel.org; linux- > > usb@vger.kernel.org > > Subject: Re: [RFC/PATCH 0/4] UASP device driver > > > > Hi Tatyana, > > > > What have you been using on the host side to test your UAS gadget > > device? Is it the in-kernel UAS driver in 2.6.37, or perhaps the > > out-of-tree driver from Luben on git hub? Or have you been using a > > different driver? > > > > Thanks, > > Sarah Sharp > > >