<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:DengXian;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:DengXian;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
text-align:justify;
text-justify:inter-ideograph;
font-size:10.5pt;
font-family:DengXian;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin:0cm;
text-align:justify;
text-justify:inter-ideograph;
text-indent:21.0pt;
font-size:10.5pt;
font-family:DengXian;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:DengXian;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:DengXian;}
/* Page Definitions */
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1757509972;
mso-list-type:hybrid;
mso-list-template-ids:584110118 235692878 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:18.0pt;
text-indent:-18.0pt;}
@list l0:level2
{mso-level-number-format:alpha-lower;
mso-level-text:"%2\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:42.0pt;
text-indent:-21.0pt;}
@list l0:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:63.0pt;
text-indent:-21.0pt;}
@list l0:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:84.0pt;
text-indent:-21.0pt;}
@list l0:level5
{mso-level-number-format:alpha-lower;
mso-level-text:"%5\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:105.0pt;
text-indent:-21.0pt;}
@list l0:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:126.0pt;
text-indent:-21.0pt;}
@list l0:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:147.0pt;
text-indent:-21.0pt;}
@list l0:level8
{mso-level-number-format:alpha-lower;
mso-level-text:"%8\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:168.0pt;
text-indent:-21.0pt;}
@list l0:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:189.0pt;
text-indent:-21.0pt;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="ZH-CN" link="#0563C1" vlink="#954F72" style="word-wrap:break-word;text-justify-trim:punctuation">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hi experts,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m trying to use dpdk power pmd management APIs in my dpdk application.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My application uses several ports, each have one rx queue, and it goes like this<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">Init first port, setup rx queue, call rte_power_ethdev_pmgmt_queue_enable, and start the first port<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">Init second port, setup rx queue, call rte_power_ethdev_pmgmt_queue_enable, and start the second port<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Now for the first port & queue, rte_power_ethdev_pmgmt_queue_enable return success, but for the second port & queue, it returns -16<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">From rte_power_ethdev_pmgmt_queue_enable code, I think it fails when checking if other queues are stopped as well.
<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#6A9955"> /* check if other queues are stopped as well */</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> </span><span lang="EN-US" style="font-family:Consolas;color:#9CDCFE">ret</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> =
</span><span lang="EN-US" style="font-family:Consolas;color:#DCDCAA">cfg_queues_stopped</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4">(</span><span lang="EN-US" style="font-family:Consolas;color:#9CDCFE">lcore_cfg</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4">);<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> </span><span lang="EN-US" style="font-family:Consolas;color:#C586C0">if</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> (</span><span lang="EN-US" style="font-family:Consolas;color:#9CDCFE">ret</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4">
!= </span><span lang="EN-US" style="font-family:Consolas;color:#B5CEA8">1</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4">) {<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#6A9955"> /* error means invalid queue, 0 means queue wasn't stopped */</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> </span><span lang="EN-US" style="font-family:Consolas;color:#9CDCFE">ret</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> =
</span><span lang="EN-US" style="font-family:Consolas;color:#9CDCFE">ret</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> <
</span><span lang="EN-US" style="font-family:Consolas;color:#B5CEA8">0</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> ? -EINVAL : -EBUSY;<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> </span><span lang="EN-US" style="font-family:Consolas;color:#C586C0">goto</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4">
</span><span lang="EN-US" style="font-family:Consolas;color:#C8C8C8">end</span><span lang="EN-US" style="font-family:Consolas;color:#D4D4D4">;<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;line-height:14.25pt;background:#1E1E1E">
<span lang="EN-US" style="font-family:Consolas;color:#D4D4D4"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This seems quite strange for me, why other queues have to be in stopped state?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Can anyone help to explain?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank you.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Br, Xiaoping<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
</body>
</html>