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<p>Hi Suman,</p>
<p> Thank you again for your help, after I set NVME_MAX_NUM_BLOCKS_PER_READ_WRITE value from 0xFFFF to 0xFFFFFFFF, OFA driver formatted time can quick as well as MS inbox driver.
<br>
</p>
<p>I notice that OFA driver transfers SCSI unmap command to NVMe dataset management command, and dataset management can deal with 4bytes logical blocks length in range definition. Why did OFA driver's
<span lang="EN-US">MaximumUnmapLBACount</span> set 0xFFFF rather than 0xFFFFFFFF?
</p>
Thanks,<br>
Joe
<p><br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>從:</b> 許銘洲<br>
<b>寄件日期:</b> 2017年12月8日 上午 09:30<br>
<b>至:</b> suman.p@samsung.com; nvmewin@lists.openfabrics.org<br>
<b>副本:</b> Meenakshikumar Somasundaram; PRAKASH BABU VEMULA<br>
<b>主旨:</b> RE: [nvmewin] device formatted time</font>
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<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">Hi Suman,</span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"> Thank you for your reply. I will test it. If I have any progress, I will feedback.
</span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"> </span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">Thanks,</span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"> Joe#3138</span></p>
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<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"> </span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"" lang="EN-US">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"" lang="EN-US"> SUMAN PRAKASH B [mailto:suman.p@samsung.com]
<br>
<b>Sent:</b> Thursday, December 07, 2017 5:53 PM<br>
<b>To:</b> </span><span style="font-size:10.0pt; font-family:"新細明體","serif"">許銘洲</span><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"" lang="EN-US">; nvmewin@lists.openfabrics.org<br>
<b>Cc:</b> Meenakshikumar Somasundaram; PRAKASH BABU VEMULA<br>
<b>Subject:</b> RE: [nvmewin] device formatted time</span></p>
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<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p><span lang="EN-US">Hi Joe,</span></p>
<p><span lang="EN-US"> </span></p>
<p><span lang="EN-US">We have seen this issue earlier. In OFA driver, more time is taken for format because the maximum number of LBAs to unmap is less compared to value set by MS driver.
<br>
We have to increase the maximum number of LBAs to unmap in SntiTranslateBlockLimitsPage() in pBLPage->MaximumUnmapLBACount.</span></p>
<p><span lang="EN-US"> </span></p>
<p><span lang="EN-US">Thanks,<br>
Suman</span></p>
<p><span lang="EN-US"> </span></p>
<p><span lang="EN-US">--------- <b>Original Message</b> ---------</span></p>
<p><b><span lang="EN-US">Sender</span></b><span lang="EN-US"> : </span><span style="font-family:"新細明體","serif"">許銘洲</span><span lang="EN-US"> <<a href="mailto:joe_mchsu@phison.com">joe_mchsu@phison.com</a>></span></p>
<p><b><span lang="EN-US">Date</span></b><span lang="EN-US"> : 2017-12-07 14:09 (GMT+5:30)</span></p>
<p><b><span lang="EN-US">Title</span></b><span lang="EN-US"> : [nvmewin] device formatted time</span></p>
<p><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Hi, Everyone, </span></p>
<p class="MsoNormal" style="text-indent:24.0pt"><span lang="EN-US">I have a formatted time issue with OFA driver on windows 10. I use a 256GB Nvme drive to test. Device’s formatted time costs about 40~50 seconds with OFA driver, but it only costs 1 ~ 2 seconds
with Microsoft inbox nvme driver.</span></p>
<p class="MsoNormal"><span lang="EN-US">Is there any chance to improve it?</span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,</span></p>
<p class="MsoNormal"><span lang="EN-US"> Joe#3138</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"" lang="EN-US"><br>
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<pre><span lang="EN-US">_______________________________________________</span></pre>
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