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<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">line 1407: Couldn’t Invalid Command Opcode also be a reasonable status code for “Get/Set Features- LBA Range Type” being optional? It does look like “INVALID_FIELD_IN_COMMAND” should be the more exact
return type, but I was thinking “Invalid command opcode” could be an acceptable error status code type as well? My reasoning is that since LBA Range Type is an optional command in the NVMe spec, the driver should not be too strict on what error status codes
it receives that will make it an optional command. In fact, maybe the code should only be checking for “successful completion”, and any error makes LBA Range Type optional (and the driver will not fail)<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Will the driver ever attempt a re-try on “Get/Set Features- LBA Range Type” if it gets an error? It does not look like the case, but if there is a chance it does, maybe it should check the “do not
retry” bit in case HW sets it? If this bit is set, then it’s pretty certain the HW does not support it. But if it is not set, maybe the driver needs to try “Get/Set Features- LBA Range Type” again before it makes it an optional command?<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Jay<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> nvmewin-bounces@lists.openfabrics.org [mailto:nvmewin-bounces@lists.openfabrics.org]
<b>On Behalf Of </b>Alex Chang<br>
<b>Sent:</b> Wednesday, January 29, 2014 2:49 PM<br>
<b>To:</b> Foster, Carolyn D; nvmewin@lists.openfabrics.org<br>
<b>Subject:</b> Re: [nvmewin] LBA Range Type Patch<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Thank you very much, Carolyn.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Please review/test the patch and provide your feedback(s) as soon as possible.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Alex<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:nvmewin-bounces@lists.openfabrics.org">nvmewin-bounces@lists.openfabrics.org</a> [<a href="mailto:nvmewin-bounces@lists.openfabrics.org">mailto:nvmewin-bounces@lists.openfabrics.org</a>]
<b>On Behalf Of </b>Foster, Carolyn D<br>
<b>Sent:</b> Wednesday, January 29, 2014 2:45 PM<br>
<b>To:</b> <a href="mailto:nvmewin@lists.openfabrics.org">nvmewin@lists.openfabrics.org</a><br>
<b>Subject:</b> [nvmewin] ***UNCHECKED*** LBA Range Type Patch<o:p></o:p></span></p>
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<p class="MsoNormal">Overview:<o:p></o:p></p>
<p class="MsoNormal">The LBA Range Type feature is defined as optional in the spec, but the driver currently fails to complete enumeration if the Get Features request for LBA Range Type fails. Based on the serious nature of the failure, this could be a problem
at the upcoming plugfest. There will likely be devices at plugfest that do not support LBA Range Type, thus causing the OFA driver to not load on these devices.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Files Modified:<o:p></o:p></p>
<p class="MsoNormal">In nvmeInit.c, NVMeSetFeaturesCompletion(), the LBA Range Type Get Features request is treated as mandatory and will cause enumeration to fail if the Get Features command is not successful. This change looks at the status codes and will
allow enumeration to continue if the device returns Invalid. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Password: intel123<o:p></o:p></p>
<p class="MsoNormal">Feedback requested by Feb. 5<sup>th</sup>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Unit Tests:<o:p></o:p></p>
<p class="MsoNormal">Cold boot<o:p></o:p></p>
<p class="MsoNormal">Reboot<o:p></o:p></p>
<p class="MsoNormal">Reset while running in the OS<o:p></o:p></p>
<p class="MsoNormal">SdStress<o:p></o:p></p>
<p class="MsoNormal">SCSI Compliance Test (I did see what I believe are known failures in Read Capacity, Mode Select, and Write (10))<o:p></o:p></p>
<p class="MsoNormal">Driver Update using INF<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><i><span style="font-size:13.5pt;color:teal">Carolyn Dase Foster</span></i></b><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">Intel Corp.</span></i><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">NVM Solutions Group</span></i><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">Internal SSD Engineering</span></i><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">Phone: 480-554-2421</span></i><o:p></o:p></p>
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