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<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Ray,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Unless I’m missing something, it appears the change to remove CNTID from Identify commands did not make it into 1.5<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Here is the relevant code from the fix I submitted:<o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New"">
</span><i><span style="font-size:10.0pt;font-family:"Courier New";color:red">/* Populate submission entry fields */</span></i><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""> pIdentify
</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">=</span><span style="font-size:10.0pt;font-family:"Courier New"">
</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">&</span><span style="font-size:10.0pt;font-family:"Courier New"">pNVMeSrbExt</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">-></span><span style="font-size:10.0pt;font-family:"Courier New"">nvmeSqeUnit</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">;</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""> pIdentify</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">-></span><span style="font-size:10.0pt;font-family:"Courier New"">CDW0.OPC
</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">=</span><span style="font-size:10.0pt;font-family:"Courier New""> ADMIN_IDENTIFY</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">;</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""> pIdentifyCDW10
</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">=</span><span style="font-size:10.0pt;font-family:"Courier New""> (PADMIN_IDENTIFY_COMMAND_DW10)
</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">&</span><span style="font-size:10.0pt;font-family:"Courier New"">pIdentify</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">-></span><span style="font-size:10.0pt;font-family:"Courier New"">CDW10</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">;</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New"">
</span><i><span style="font-size:10.0pt;font-family:"Courier New";color:red">/* Set the type of identify command */</span></i><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""> pIdentifyCDW10</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">-></span><span style="font-size:10.0pt;font-family:"Courier New"">CNS
</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">=</span><span style="font-size:10.0pt;font-family:"Courier New""> CNS</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">;</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#E3DFE0"><span style="font-size:10.0pt;font-family:"Courier New"">
</span><b><span style="font-size:10.0pt;font-family:"Courier New";color:purple">switch</span></b><span style="font-size:10.0pt;font-family:"Courier New""> (CNS)
</span><span style="font-size:10.0pt;font-family:"Courier New";color:maroon">{<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Here is the same code in the trunk and the 1.5 release source:<o:p></o:p></span></p>
<pre><span style="color:black">/* Populate submission entry fields */<o:p></o:p></span></pre>
<pre><span style="color:black"> pIdentify = &pNVMeSrbExt->nvmeSqeUnit;<o:p></o:p></span></pre>
<pre><span style="color:black"> pIdentify->CDW0.OPC = ADMIN_IDENTIFY;<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"> pIdentifyCDW10 = (PADMIN_IDENTIFY_COMMAND_DW10) &pIdentify->CDW10;<o:p></o:p></span></pre>
<pre><span style="color:black"> /* Set the type of identify command */<o:p></o:p></span></pre>
<pre><span style="color:black"> pIdentifyCDW10->CNS = CNS;<o:p></o:p></span></pre>
<pre><span style="color:black"> /* Select the controller to talk to */<o:p></o:p></span></pre>
<pre><span style="color:black"> </span><span style="color:#C55A11;mso-style-textfill-fill-color:#C55A11;mso-style-textfill-fill-alpha:100.0%">pIdentifyCDW10->CNTID = CNTID;<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"> switch (CNS) {<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="font-family:"Calibri",sans-serif;color:#1F4E79;mso-style-textfill-fill-color:#1F4E79;mso-style-textfill-fill-alpha:100.0%">Can we get this updated, including the 1.5 builds?<o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri",sans-serif;color:#1F4E79;mso-style-textfill-fill-color:#1F4E79;mso-style-textfill-fill-alpha:100.0%">Thanks,</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></pre>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Tom Freeman<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Software Engineer, Device Manager and Driver Development<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">HGST</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, a Western Digital brand<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Email: Thomas.freeman@wdc.com<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Office: +1-507-322-2311</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"> Tom Freeman
<br>
<b>Sent:</b> Friday, November 11, 2016 8:41 AM<br>
<b>To:</b> 'Robles, Raymond C' <raymond.c.robles@intel.com>; nvmewin <nvmewin@lists.openfabrics.org><br>
<b>Subject:</b> RE: Issue with the latest OFA driver<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Ray,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In case you decide to include this fix in the latest release, here are the details:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The attached zip file, Ident-CNTIDPatch.zip (password = nvmehgst) contains:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Source subdirectory containing the modified code based on revision 139.
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ControllerIdFix.patch containing the SVN patch to revision 139.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">README.txt – description of the problem and the fix.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Tom Freeman<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Software Engineer, Device Manager and Driver Development<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">HGST</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, a Western Digital brand<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Email:
<a href="mailto:Thomas.freeman@wdc.com">Thomas.freeman@wdc.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Office: +1-507-322-2311</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"> Robles, Raymond C [<a href="mailto:raymond.c.robles@intel.com">mailto:raymond.c.robles@intel.com</a>]
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<b>Sent:</b> Tuesday, November 1, 2016 1:27 PM<br>
<b>To:</b> Tom Freeman <<a href="mailto:thomas.freeman@wdc.com">thomas.freeman@wdc.com</a>>; nvmewin <<a href="mailto:nvmewin@lists.openfabrics.org">nvmewin@lists.openfabrics.org</a>><br>
<b>Subject:</b> RE: Issue with the latest OFA driver<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060">Hi Tom,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060">Good find!
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060">I’m of the opinion that it makes sense to get this patch in for the release we are about to announce. This is a minor fix for the Identify command that is isolated
to two scenarios. <span style="background:yellow;mso-highlight:yellow">Does anyone else have any objections or feel we should wait for this patch?</span>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060">Depending on the feedback, we can go ahead and push a patch. I would say for now, please get the patch ready and then let’s hold for feedback from the community
reviewers… and go from there. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060">Thank you…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060">Ray<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#002060"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"> Tom Freeman [</span><a href="mailto:thomas.freeman@wdc.com"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">mailto:thomas.freeman@wdc.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">]
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<b>Sent:</b> Tuesday, November 01, 2016 9:08 AM<br>
<b>To:</b> Robles, Raymond C <</span><a href="mailto:raymond.c.robles@intel.com"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">raymond.c.robles@intel.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">>;
nvmewin <</span><a href="mailto:nvmewin@lists.openfabrics.org"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">nvmewin@lists.openfabrics.org</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">><br>
<b>Subject:</b> Issue with the latest OFA driver<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">Ray,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">We’ve run into the following issue with the latest OFA driver.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">During initialization, the driver request for NVME Identify Namespace fails with a status of “invalid field in command”. Because of this, initialization fails
and the device does not show up. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">The underlying cause is that the driver puts the controller ID value into CDW10.CNTID. A</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">ccording
to the NVMe spec, that is only valid when CNS = 0x12 or 0x13. For all other cases, “the host shall clear this field to 0h”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">I’d like to make a patch for this. The fix would remove controller ID from any of the instance of NVMe Identify command (the driver does not use CNS = 0x12 or 0x13). How would
you like me to proceed to coordinate with the current 1.5 testing?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thanks,</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext">Tom Freeman<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext">Software Engineer, Device Manager and Driver Development<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext">HGST</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext">, a Western Digital brand<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext">Email:
</span><a href="mailto:Thomas.freeman@wdc.com"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Thomas.freeman@wdc.com</span></a><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:windowtext">Office: +1-507-322-2311</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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