1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>mpt_send_handshake_request</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-free-msg-frame.html" title="mpt_free_msg_frame"><link rel="next" href="API-mpt-verify-adapter.html" title="mpt_verify_adapter"></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_send_handshake_request</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-mpt-free-msg-frame.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-verify-adapter.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-mpt-send-handshake-request"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>mpt_send_handshake_request &#8212; 
2     Send MPT request via doorbell handshake method.
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_send_handshake_request </b>(</code></td><td>u8 <var class="pdparam">cb_idx</var>, </td></tr><tr><td>&#160;</td><td>MPT_ADAPTER * <var class="pdparam">ioc</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">reqBytes</var>, </td></tr><tr><td>&#160;</td><td>u32 * <var class="pdparam">req</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="idp1111240476"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>cb_idx</code></em></span></dt><dd><p>
4     Handle of registered MPT protocol driver
5    </p></dd><dt><span class="term"><em class="parameter"><code>ioc</code></em></span></dt><dd><p>
6     Pointer to MPT adapter structure
7    </p></dd><dt><span class="term"><em class="parameter"><code>reqBytes</code></em></span></dt><dd><p>
8     Size of the request in bytes
9    </p></dd><dt><span class="term"><em class="parameter"><code>req</code></em></span></dt><dd><p>
10     Pointer to MPT request frame
11    </p></dd><dt><span class="term"><em class="parameter"><code>sleepFlag</code></em></span></dt><dd><p>
12     Use schedule if CAN_SLEEP else use udelay.
13    </p></dd></dl></div></div><div class="refsect1"><a name="idp1111246220"></a><h2>Description</h2><p>
14   This routine is used exclusively to send MptScsiTaskMgmt
15   requests since they are required to be sent via doorbell handshake.
16</p></div><div class="refsect1"><a name="idp1111246956"></a><h2>NOTE</h2><p>
17   It is the callers responsibility to byte-swap fields in the
18   request which are greater than 1 byte in size.
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-free-msg-frame.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-verify-adapter.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">mpt_free_msg_frame</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_verify_adapter</span></td></tr></table></div></body></html>
23