1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>mpt_host_page_access_control</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="message_devices.html#idp1111130356" title="Fusion message devices"><link rel="prev" href="API-mpt-add-chain-64bit.html" title="mpt_add_chain_64bit"><link rel="next" href="API-mpt-host-page-alloc.html" title="mpt_host_page_alloc"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">mpt_host_page_access_control</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-mpt-add-chain-64bit.html">Prev</a>&#160;</td><th width="60%" align="center">Fusion message devices</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-mpt-host-page-alloc.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-mpt-host-page-access-control"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>mpt_host_page_access_control &#8212; 
2     control the IOC's Host Page Buffer access
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">mpt_host_page_access_control </b>(</code></td><td>MPT_ADAPTER * <var class="pdparam">ioc</var>, </td></tr><tr><td>&#160;</td><td>u8 <var class="pdparam">access_control_value</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">sleepFlag</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1111522876"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>ioc</code></em></span></dt><dd><p>
4     Pointer to MPT adapter structure
5    </p></dd><dt><span class="term"><em class="parameter"><code>access_control_value</code></em></span></dt><dd><p>
6     define bits below
7    </p></dd><dt><span class="term"><em class="parameter"><code>sleepFlag</code></em></span></dt><dd><p>
8     Specifies whether the process can sleep
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1111526564"></a><h2>Description</h2><p>
10   Provides mechanism for the host driver to control the IOC's
11   Host Page Buffer access.
12   </p><p>
13
14   Access Control Value - bits[15:12]
15   0h Reserved
16   1h Enable Access { MPI_DB_HPBAC_ENABLE_ACCESS }
17   2h Disable Access { MPI_DB_HPBAC_DISABLE_ACCESS }
18   3h Free Buffer { MPI_DB_HPBAC_FREE_BUFFER }
19   </p><p>
20
21   Returns 0 for success, non-zero for failure.
22</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-mpt-add-chain-64bit.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="message_devices.html#idp1111130356">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-mpt-host-page-alloc.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">mpt_add_chain_64bit</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">mpt_host_page_alloc</span></td></tr></table></div></body></html>
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