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456 lines
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456 lines
20 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright (c) 2016 OpenPOWER Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xl="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:lang="en"
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xml:id="sec_get_indices_rtas_call">
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<title><emphasis>ibm,get-indices</emphasis> Call</title>
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<para>The RTAS function
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<emphasis>ibm,get-indices</emphasis> is used to obtain the indices and
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location codes for a specified indicator or sensor token. It allows for
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obtaining the list of indicators and sensors dynamically and therefore
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assists in any Dynamic Reconfiguration operation that involves indicators
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and sensors being added or deleted from the platform (unlike the
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<emphasis role="bold"><literal>/rtas</literal></emphasis> node
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<emphasis role="bold"><literal>“</literal></emphasis><emphasis><literal><vendor></literal></emphasis><emphasis role="bold"><literal>,indicator-</literal></emphasis><emphasis><literal><token></literal></emphasis><emphasis role="bold"><literal>”</literal></emphasis>,
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<emphasis role="bold"><literal>“</literal></emphasis><emphasis><literal><vendor></literal></emphasis><emphasis role="bold"><literal>,sensor-</literal></emphasis><emphasis><literal><token></literal></emphasis><emphasis role="bold"><literal>”</literal></emphasis>,
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and <emphasis role="bold"><literal>“ibm,environmental-sensor”</literal></emphasis> properties).
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This call also allows discontiguous indices for a particular indicator or
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sensor type (unlike the
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<emphasis role="bold"><literal>“rtas-indicators”</literal></emphasis>,
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<emphasis role="bold"><literal>“rtas-sensors”</literal></emphasis>, and
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<emphasis role="bold"><literal>
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“ibm,environmental-sensor”</literal></emphasis> properties).</para>
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<para>This RTAS call is not used for DR indicators (9001, 9002, and 9003)
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or DR sensors (9003). See the following sections in the DR chapter for more
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information:
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<xref linkend="LoPAR.Virtualization" /> and
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<xref linkend="LoPAR.Virtualization" />.</para>
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<para>It may require several calls to the
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<emphasis>ibm,get-indices</emphasis> RTAS routine to get the entire list of
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indicators or sensors of a particular type. Each call may specify a
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different work area.</para>
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<para>The OS may not interleave calls to
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<emphasis>ibm,get-indices</emphasis> for different indicator or sensor
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types. Other standard RTAS locking rules apply.</para>
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<variablelist>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-1.</emphasis></term>
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<listitem>
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<para><emphasis role="bold">For all DR options:</emphasis> The RTAS function
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<emphasis>ibm,get-indices</emphasis> must implement the argument call buffer
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defined by
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<xref linkend="dbdoclet.50569332_50675" />.</para>
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<table frame="all" pgwide="1" xml:id="dbdoclet.50569332_50675">
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<title>Argument Call Buffer
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<emphasis>ibm,get-indices</emphasis></title>
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<tgroup cols="3">
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<colspec colname="c1" colwidth="1*" />
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<colspec colname="c2" colwidth="2*" />
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<colspec colname="c3" colwidth="4*" />
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<thead>
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<row>
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<entry>
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<para>
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<emphasis role="bold">Parameter Type</emphasis>
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</para>
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</entry>
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<entry>
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<para>
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<emphasis role="bold">Name</emphasis>
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</para>
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</entry>
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<entry>
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<para>
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<emphasis role="bold">Values</emphasis>
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</para>
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</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry morerows="7" valign="middle">
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<para>In</para>
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</entry>
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<entry>
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<para>
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<emphasis>Token</emphasis>
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</para>
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</entry>
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<entry>
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<para>Token for
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<emphasis>ibm,get-indices</emphasis></para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Number Inputs</emphasis>
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</para>
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</entry>
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<entry>
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<para>5</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Number Outputs</emphasis>
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</para>
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</entry>
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<entry>
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<para>2</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Indicator or Sensor</emphasis>
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</para>
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</entry>
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<entry>
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<para>0: indicator of given type</para>
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<para>1: sensor of given type</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Indicator Type</emphasis>
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</para>
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</entry>
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<entry>
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<para>Indicator or sensor type (for example, 9006, 9007)</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Work Area Address</emphasis>
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</para>
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</entry>
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<entry>
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<para>Address of work area</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Work Area Size</emphasis>
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</para>
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</entry>
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<entry>
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<para>Size of work area</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Starting Number</emphasis>
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</para>
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</entry>
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<entry>
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<para>Integer representing first indicator number to
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return</para>
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</entry>
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</row>
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<row>
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<entry morerows="1" valign="middle">
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<para>Out</para>
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</entry>
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<entry>
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<para>
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<emphasis>Status</emphasis>
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</para>
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</entry>
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<entry>
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<para>-1: Hardware error</para>
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<para>-3: Indicator type not supported</para>
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<para>-4: Optional: Indicator list changed, start again</para>
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<para>0: Success</para>
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<para>1: More data available; call again</para>
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<para>990x:Extended Delay where x is a number 0-5 (see text
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below)</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>
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<emphasis>Next Starting Number</emphasis>
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</para>
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</entry>
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<entry>
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<para>Integer to use as the Starting Number parameter on the next
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call, or 1 if no more calls are required</para>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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<para>When the 990x
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<emphasis>Status</emphasis> is returned, it is suggested that software delay
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for 10 raised to the x milliseconds (where x is the last digit of the 990x
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return code), before calling
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<emphasis>ibm,get-indices</emphasis> with the same Starting Number and
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Indicator Type. However, software may issue the
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<emphasis>ibm,get-indices</emphasis> call again either earlier or later than
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this.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-2.</emphasis></term>
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<listitem>
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<para>The OS must not interleave calls to
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<emphasis>ibm,get-indices</emphasis> for different indicator or sensor
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types.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-3.</emphasis></term>
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<listitem>
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<para>On the first call to get a particular
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<emphasis>Indicator Type</emphasis>, the caller must provide a Starting
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Number of 1 (32-bit integer)</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-4.</emphasis></term>
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<listitem>
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<para>When
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<emphasis>ibm,get-indices</emphasis> is called with a Starting Number of 1,
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firmware must refresh any stale data in previously cached firmware buffers
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for that indicator (for example, data made stale by a Dynamic
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Reconfiguration operation).</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-5.</emphasis></term>
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<listitem>
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<para>When calling
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<emphasis>ibm,get-indices</emphasis> with a Starting Number of 1, a
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previously returned
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<emphasis>Next Starting Number</emphasis> value must be discarded.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-6.</emphasis></term>
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<listitem>
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<para>Optionally, if firmware detects a change in
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the indicator list before the entire list is returned, the
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<emphasis>ibm,get-indices</emphasis> call must return a -4 and the caller
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must start again with a Starting Number of 1.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-7.</emphasis></term>
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<listitem>
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<para>The return data format in the work area for
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all sensors and indicators must be as follows:</para>
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<itemizedlist>
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<listitem>
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<para>Number Returned: 32-bit integer representing the number of
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indicator indices returned on this call</para>
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</listitem>
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<listitem>
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<para>Sets of (32-bit integer index, 32-bit integer length of location
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code including NULLs, location code string (NULL terminated and padded to
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nearest 4 byte boundary)), one set per indicator or sensor, with the number
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of sets indicated by the first integer in this work buffer</para>
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</listitem>
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</itemizedlist>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-8.</emphasis></term>
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<listitem>
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<para>If the
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<emphasis>Status</emphasis> returned is 1 (more data available, call again),
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then the caller must call
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<emphasis>ibm,get-indices</emphasis> again with the
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<emphasis>Starting Number</emphasis> parameter set to the Next Starting
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Number integer from the previously returned buffer.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-9.</emphasis></term>
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<listitem>
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<para>The <emphasis>ibm,get-indices</emphasis> RTAS call must return the
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<emphasis>Status</emphasis> value of -3 for the following conditions:</para>
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<orderedlist numeration="loweralpha">
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<listitem>
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<para>Indicator type not supported</para>
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</listitem>
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<listitem>
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<para>No indicators of specified Indicator Type available to
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caller</para>
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</listitem>
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</orderedlist>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-10.</emphasis></term>
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<listitem>
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<para>If the <emphasis>ibm,get-indices</emphasis> RTAS call returns a
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<emphasis>Status</emphasis> of anything other than 0 or 1 is returned, the
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caller must consider that the contents of the work area is not
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defined.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-11.</emphasis></term>
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<listitem>
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<para>The work area specified in the
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<emphasis>ibm,get-indices</emphasis> RTAS call argument buffer must be
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contiguous in logical real memory and must reside below 4GB.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-12.</emphasis></term>
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<listitem>
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<para>The <emphasis>ibm,get-indices</emphasis> RTAS call must only return the
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indicator or sensor indices to which the caller has authorized access at
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the time of the call.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-13.</emphasis></term>
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<listitem>
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<para>The <emphasis>ibm,get-indices</emphasis> RTAS call must make no assumptions
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about the contents of the work area on the beginning of the call.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-14.</emphasis></term>
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<listitem>
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<para>When the platform supports the
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<emphasis>ibm,get-indices</emphasis> RTAS call, the device tree must include
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the
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<emphasis role="bold"><literal>“ibm,get-indicator-indices-types”</literal></emphasis> property
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in the
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<emphasis role="bold"><literal>/rtas</literal></emphasis> node if the call is to be used for getting
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indicator information and must include the
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<emphasis role="bold"><literal>“ibm,get-sensor-indices-types”</literal></emphasis> property in
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the
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<emphasis role="bold"><literal>/rtas</literal></emphasis> node if the call is to be used for getting sensor
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information.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-15.</emphasis></term>
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<listitem>
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<para>When an indicator token is provided in the
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<emphasis role="bold"><literal>“ibm,get-indicator-indices-types”</literal></emphasis> property,
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it must not be included in the
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<emphasis role="bold"><literal>“</literal></emphasis><emphasis><literal><vendor></literal></emphasis><emphasis><literal>,indicator-</literal></emphasis><emphasis><literal><token></literal></emphasis><emphasis role="bold"><literal>”</literal></emphasis>
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property and must not be included in the
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<emphasis role="bold"><literal>“rtas-indicators”</literal></emphasis> property.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-16.</emphasis></term>
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<listitem>
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<para>When a sensor token is provided in the
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<emphasis role="bold"><literal>“ibm,get-sensor-indices-types”</literal></emphasis> property, it
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must not be included in the
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<emphasis role="bold"><literal>“</literal></emphasis><emphasis><literal><vendor></literal></emphasis><emphasis role="bold"><literal>,sensor-</literal></emphasis><emphasis><literal><token></literal></emphasis><emphasis role="bold"><literal>”</literal></emphasis>
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property and must not be included in the
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<emphasis role="bold"><literal>“rtas-sensors”</literal></emphasis> property.</para>
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</listitem>
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</varlistentry>
|
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<varlistentry>
|
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
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xrefstyle="select: labelnumber nopage"/>-17.</emphasis></term>
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<listitem>
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<para>When an environmental sensor token is
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provided in the
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<emphasis role="bold"><literal>“ibm,get-sensor-indices-types”</literal></emphasis> property,
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users of data in the
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<emphasis role="bold"><literal>“ibm,environmental-sensors”</literal></emphasis> property for
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that sensor token must not assume that the indices are contiguous for that
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sensor token (that is, any of the indices between 0 and the maxindex,
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inclusive, may be missing).</para>
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</listitem>
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</varlistentry>
|
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|
|
<varlistentry xml:id="dbdoclet.50569332_80480">
|
|
<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
|
|
xrefstyle="select: labelnumber nopage"/>-18.</emphasis></term>
|
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<listitem>
|
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<para>When the value of
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any index returned is 0xFFFFFFFF, the OS must use the
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<emphasis>ibm,get-dynamic-sensor-state</emphasis> and
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<emphasis>ibm,set-dynamic-indicator</emphasis> RTAS functions for this
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sensor or indicator, using the location code to identify the sensor or
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indicator.</para>
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</listitem>
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</varlistentry>
|
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|
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<varlistentry>
|
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<term><emphasis role="bold">R1-<xref linkend="sec_get_indices_rtas_call"
|
|
xrefstyle="select: labelnumber nopage"/>-19.</emphasis></term>
|
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<listitem>
|
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<para>The OS must not call
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<emphasis>get-sensor-state</emphasis> or
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<emphasis>get-indicator</emphasis> with an index value of 0xFFFFFFFF.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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