Update documentation for recently added configuration options

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5241 42af7a65-404d-4744-a932-0658087f49c3

Documentation/NuttShell.html

@@ -2559,6 +2559,13 @@ nsh>
       If set, a bogus MAC will be assigned.
     </td>
   </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_MAX_ROUNDTRIP</code></b></td>
+    <td>
+      This is the maximum round trip for a response to a ICMP ECHO request.
+      It is in units of deciseconds.  The default is 20 (2 seconds).
+    </td>
+  </tr>
 </table></center>
 
 <p>
@@ -3537,6 +3544,7 @@ mount -t vfat /dev/ram1 /tmp
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_IOBUFFER_SIZE</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_IPADDR</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_LINELEN</code></a></li>
+  <li><a href="#nshconfiguration"><code>CONFIG_NSH_MAX_ROUNDTRIP</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_NESTDEPTH</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_NETMASK</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_NOMAC</code></a></li>

Documentation/NuttxPortingGuide.html

@@ -4445,6 +4445,35 @@ build
   <code>CONFIG_ARCH_BZERO</code>
 </p></ul>
 
+<p><li>
+  If <code>CONFIG_ARCH_MEMCPY</code> is <b>not</b> selected, then you make also select Daniel
+  Vik's optimized implementation of <code>memcpy()</code>:
+</p>
+  <ul><li>
+    <code>CONFIG_MEMCPY_VIK</code>:
+    Select this option to use the optimized <code>memcpy()</code> function by Daniel Vik.
+    See licensing information in the top-level <code>COPYING</code> file.
+    Default: <code>n</code>.
+  </li></ul>
+
+<p>
+  And if <code>CONFIG_MEMCPY_VIK</code>, the following tuning options are available:
+</p>
+<ul><li>
+    <code>CONFIG_MEMCPY_PRE_INC_PTRS</code>:
+    Use pre-increment of pointers.
+    Default is post increment of pointers.
+</li>
+<li>
+    <code>CONFIG_MEMCPY_INDEXED_COPY</code>
+    Copying data using array indexing.
+    Using this option, disables the <code>CONFIG_MEMCPY_PRE_INC_PTRS</code> option.
+</li>
+<li>
+    <code>CONFIG_MEMCPY_64BIT</code>:
+    Compiles memcpy for 64 bit architectures
+</li></ul>
+
 <li>
   <p>
     The architecture may provide custom versions of certain standard header files:
@@ -5180,6 +5209,11 @@ build
   <li>
     <code>CONFIG_NET_RESOLV_ENTRIES</code>: Number of resolver entries
   </li>
+  <li>
+    <code>CONFIG_NET_RESOLV_MAXRESPONSE</code>:
+    This setting determines the maximum size of response message that can be received by the DNS resolver.
+    The default is 96 but may need to be larger on enterprise networks (perhaps 176).
+  </li>
 </ul>
 
 <h3>THTTPD</h3>