DIMM Presence Detect

	- Detect DIMMs by reading BASIC_MEMORY_TYPE
	- Testcases to test DIMM Presence Detect
	- Added new SPD Keyword Enumeration
	- Modified table lookup for DRAM_MANUFACTURER_ID
	- New DIMM SPD data from Hardware team

Change-Id: I11a0b8ad4b13d6200a58efc7459396f0a12695f2
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/646
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/src/usr/spd/dimmPres.C b/src/usr/spd/dimmPres.C
new file mode 100755
index 000000000..57183f650
--- /dev/null
+++ b/src/usr/spd/dimmPres.C
@@ -0,0 +1,158 @@
+//  IBM_PROLOG_BEGIN_TAG
+//  This is an automatically generated prolog.
+//
+//  $Source: src/usr/spd/dimmPres.C $
+//
+//  IBM CONFIDENTIAL
+//
+//  COPYRIGHT International Business Machines Corp. 2012
+//
+//  p1
+//
+//  Object Code Only (OCO) source materials
+//  Licensed Internal Code Source Materials
+//  IBM HostBoot Licensed Internal Code
+//
+//  The source code for this program is not published or other-
+//  wise divested of its trade secrets, irrespective of what has
+//  been deposited with the U.S. Copyright Office.
+//
+//  Origin: 30
+//
+//  IBM_PROLOG_END
+/**
+ * @file dimmPres.C
+ *
+ * @brief Implementation of the DIMM Presence detect.
+ *
+ */
+
+// ----------------------------------------------
+// Includes
+// ----------------------------------------------
+#include <trace/interface.H>
+#include <errl/errlentry.H>
+#include <errl/errlmanager.H>
+#include <targeting/targetservice.H>
+#include <devicefw/driverif.H>
+#include <spd/spdreasoncodes.H>
+#include <spd/spdenums.H>
+
+#include "spd.H"
+
+// ----------------------------------------------
+// Globals
+// ----------------------------------------------
+
+// ----------------------------------------------
+// Trace definitions
+// ----------------------------------------------
+extern trace_desc_t * g_trac_spd;
+
+// ------------------------
+// Macros for unit testing
+//#define TRACUCOMP(args...)  TRACFCOMP(args)
+#define TRACUCOMP(args...)
+//#define TRACSSCOMP(args...)  TRACFCOMP(args)
+#define TRACSSCOMP(args...)
+
+// ----------------------------------------------
+// Defines
+// ----------------------------------------------
+
+
+namespace SPD
+{
+
+// Register the Presence detect code with the framework.
+DEVICE_REGISTER_ROUTE( DeviceFW::READ,
+                       DeviceFW::PRESENT,
+                       TARGETING::TYPE_DIMM,
+                       dimmPresenceDetect );
+
+// ------------------------------------------------------------------
+// dimmPresenceDetect
+// ------------------------------------------------------------------
+errlHndl_t dimmPresenceDetect( DeviceFW::OperationType i_opType,
+                               TARGETING::Target * i_target,
+                               void * io_buffer,
+                               size_t & io_buflen,
+                               int64_t i_accessType,
+                               va_list i_args )
+{
+    errlHndl_t err = NULL;
+    bool present = false;
+    size_t presentSz = sizeof(present);
+
+    TRACSSCOMP( g_trac_spd,
+                ENTER_MRK"spdPresenceDetect()" );
+
+    do
+    {
+        // Check to be sure that the buffer is big enough.
+        if( !(io_buflen >= sizeof(bool)) )
+        {
+            TRACFCOMP( g_trac_spd,
+                       ERR_MRK"spdPresenceDetect() - Invalid Data Length: %d",
+                       io_buflen );
+
+            /*@
+             * @errortype
+             * @reasoncode       SPD_INSUFFICIENT_BUFFER_SIZE
+             * @severity         ERRORLOG::ERRL_SEV_UNRECOVERABLE
+             * @moduleid         SPD_PRESENCE_DETECT
+             * @userdata1        Buffer Length
+             * @userdata2        <UNUSED>
+             * @devdesc          Buffer for checking Presence Detect was not the correct size.
+             */
+            err = new ERRORLOG::ErrlEntry( ERRORLOG::ERRL_SEV_UNRECOVERABLE,
+                                           SPD_PRESENCE_DETECT,
+                                           SPD_INSUFFICIENT_BUFFER_SIZE,
+                                           TO_UINT64(io_buflen),
+                                           0x0 );
+
+            break;
+        }
+
+        // Read Byte 2 (BASIC_MEMORY_TYPE) for the target passed in.
+        uint16_t data = 0x0;
+        size_t dataSz = sizeof(data);
+        err = spdGetKeywordValue( BASIC_MEMORY_TYPE,
+                                  &data,
+                                  dataSz,
+                                  i_target );
+
+        if( err )
+        {
+            // If an error is returned, the DIMM is not present.
+            present = false;
+            TRACUCOMP( g_trac_spd,
+                       INFO_MRK"Dimm was found to be NOT present." );
+
+            memcpy( io_buffer, &present, presentSz );
+            io_buflen = 0;
+
+            // Delete the error
+            delete err;
+            err = NULL;
+        }
+        else
+        {
+            // DIMM is present...
+            present = true;
+            TRACUCOMP( g_trac_spd,
+                       INFO_MRK"Dimm was found to be present." );
+
+            memcpy( io_buffer, &present, presentSz );
+            io_buflen = presentSz;
+        }
+    } while( 0 );
+
+    TRACSSCOMP( g_trac_spd,
+                EXIT_MRK"spdPresenceDetect()" );
+
+    return err;
+} // end dimmPresenceDetect
+
+
+}; // end namespace SPD