io_read_erepair

Change-Id: I50feb3969df59079bb05b8b091153f365dc9bfd8
RTC:	63038
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/3193
Tested-by: Jenkins Server
Reviewed-by: Brian H. Horton <brianh@linux.ibm.com>
Reviewed-by: Bilicon Patil <bilpatil@in.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

3 files changed, 211 insertions, 0 deletions

diff --git a/src/usr/hwpf/hwp/bus_training/io_read_erepair.C b/src/usr/hwpf/hwp/bus_training/io_read_erepair.C
new file mode 100644
index 000000000..3d3707902
--- /dev/null
+++ b/src/usr/hwpf/hwp/bus_training/io_read_erepair.C
@@ -0,0 +1,156 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/io_read_erepair/io_read_erepair.C $          */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* 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 otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// $Id: io_read_erepair.C,v 1.5 2013/02/05 06:06:06 varkeykv Exp $
+// *!***************************************************************************
+// *! (C) Copyright International Business Machines Corp. 1997, 1998
+// *!           All Rights Reserved -- Property of IBM
+// *!                   *** IBM Confidential ***
+// *!***************************************************************************
+// *! FILENAME             : io_read_erepair.C
+// *! TITLE                : 
+// *! DESCRIPTION          : Read e-repair data 
+// *! CONTEXT              : 
+// *!
+// *! OWNER  NAME          : Varghese, Varkey         Email: varkey.kv@in.ibm.com
+// *! BACKUP NAME          : Swaminathan, Janani      Email: jaswamin@in.ibm.com      
+// *!
+// *!***************************************************************************
+// CHANGE HISTORY:
+//------------------------------------------------------------------------------
+// Version:|Author: | Date:   | Comment:
+// --------|--------|---------|--------------------------------------------------
+//   1.0   |varkeykv|21-Jan-13|Initial check in 
+//------------------------------------------------------------------------------
+
+#include <fapi.H>
+#include "io_read_erepair.H"
+#include "gcr_funcs.H"
+
+extern "C" {
+
+
+using namespace fapi;
+
+
+//! Read repair values from VPD into the HW
+/*
+ This function will perform erepair for one IO type target  -- eithe MCS or XBUS or ABUS
+* Tx and Rx lanes vector is filled in by the HWP with bad lane numbers
+*/
+ReturnCode io_read_erepair(const Target& target,std::vector<uint8_t> &rx_lanes)
+{
+  ReturnCode rc;
+  ecmdDataBufferBase data_one(16);
+  ecmdDataBufferBase data_two(16);
+  ecmdDataBufferBase mask(16);
+  uint8_t lane;
+
+  io_interface_t interface=CP_IOMC0_P0; // Since G
+  uint32_t rc_ecmd=0;
+  uint8_t start_group=0;
+  uint8_t end_group=0;
+  
+    rc_ecmd=mask.flushTo1();
+    if(rc_ecmd)
+    {
+        rc.setEcmdError(rc_ecmd);
+        return(rc);
+    }
+  
+  // Check which type of bus this is and do setup needed 
+  if(target.getType() == fapi::TARGET_TYPE_ABUS_ENDPOINT) {
+    start_group=0;
+    end_group=0;
+    interface=CP_FABRIC_A0; // base scom for A bus , assume translation to A1 by PLAT 
+  }
+  else if(target.getType() == fapi::TARGET_TYPE_XBUS_ENDPOINT ) {
+    start_group=0;
+    end_group=3;
+    interface=CP_FABRIC_X0; // base scom for X bus
+  }
+  else if(target.getType() == fapi::TARGET_TYPE_MCS_CHIPLET){
+    start_group=3;
+    end_group=3;
+    interface=CP_IOMC0_P0; // base scom for MC bus
+  }
+  else if(target.getType() == fapi::TARGET_TYPE_MEMBUF_CHIP){
+    start_group=0;
+    end_group=0;
+    interface=CEN_DMI; // base scom Centaur chip
+  }
+  else{
+      FAPI_ERR("Invalid io_read_erepair HWP invocation");
+      FAPI_SET_HWP_ERROR(rc, IO_RUN_TRAINING_INVALID_INVOCATION_RC);
+      return(rc);
+  }
+   
+   FAPI_INF("Reading erepair data \n");
+
+    for(uint8_t clock_group=start_group;clock_group<=end_group;++clock_group){
+      // This is only for X bus ..where multi groups are translated to consecutive lane numbers
+      if(clock_group==0){
+        lane=0;
+      }
+      else if(clock_group==1){
+        lane=20;
+      }
+      else if(clock_group==2){
+        lane=40;
+      }
+      else if(clock_group==3){
+        lane=60;
+      }
+
+      //Collect the RX bad lanes 
+      rc_ecmd|=data_one.flushTo0();
+      rc_ecmd|=data_two.flushTo0();
+            
+      if(rc_ecmd)
+      {
+          rc.setEcmdError(rc_ecmd);
+          return(rc);
+      }
+      
+      rc = GCR_read( target, interface, rx_lane_bad_vec_0_15_pg, clock_group,  0,  data_one);
+      if(rc){return rc;}
+      rc = GCR_read( target, interface, rx_lane_bad_vec_16_31_pg, clock_group,  0,  data_two);
+      if(rc){return rc;}
+
+      // RX lane records 
+      // Set the RX bad lanes in the RX vector
+      
+      for(uint8_t i=0;i<16;++i){
+          if (data_one.isBitSet(i)) {
+             rx_lanes.push_back(lane+i); // 0 to 15 bad lanes
+          }
+          if(data_two.isBitSet(i)){
+            rx_lanes.push_back(lane+i+16); // 16 to 31 bad lanes 
+          }
+      }
+
+    }
+  return rc;
+}
+
+} //end extern C
+
diff --git a/src/usr/hwpf/hwp/bus_training/io_read_erepair.H b/src/usr/hwpf/hwp/bus_training/io_read_erepair.H
new file mode 100644
index 000000000..af45b9e13
--- /dev/null
+++ b/src/usr/hwpf/hwp/bus_training/io_read_erepair.H
@@ -0,0 +1,54 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/io_read_erepair/io_read_erepair.H $          */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* 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 otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// $Id: io_read_erepair.H,v 1.4 2013/02/05 06:06:06 varkeykv Exp $
+#ifndef IO_READ_EREPAIR_H_
+#define IO_READ_EREPAIR_H_
+
+#include <fapi.H>
+
+/**
+ * @brief IO read e repair function
+ * the  rx vectors will return to the caller(PRD or e-repair)the bad lane numbers on this endpoint 
+ */
+typedef fapi::ReturnCode (*io_read_erepair_FP_t)(const fapi::Target &target,std::vector<uint8_t> &rx_lanes);
+
+extern "C"
+{
+
+/**
+ * @brief IO read erepair function 
+ *
+ * @param[in] target could P8 MCS ,Centaur ( MEMBUF )  , p8 XBUS or p8 ABUS
+ *
+ * rx lanes will return bad lane data to the caller on this particular bus/endpoint
+ * e-repair will duplicate this to TX vpd records as well on the other connected side 
+ * 
+ *
+ * @return ReturnCode
+ */
+
+fapi::ReturnCode io_read_erepair(const fapi::Target &target,std::vector<uint8_t> &rx_lanes);
+
+} // extern "C"
+
+#endif // IO_READ_EREPAIR_H_
diff --git a/src/usr/hwpf/hwp/bus_training/makefile b/src/usr/hwpf/hwp/bus_training/makefile
index 358fbae07..3bdb6b83d 100644
--- a/src/usr/hwpf/hwp/bus_training/makefile
+++ b/src/usr/hwpf/hwp/bus_training/makefile
@@ -37,6 +37,7 @@ EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/include
 OBJS =  gcr_funcs.o io_funcs.o io_run_training.o pbusLinkSvc.o proc_fab_smp.o \
         io_dccal.o \
         io_power_down_lanes.o   \
+        io_read_erepair.o   \
 
 
 ##  NOTE: add a new directory onto the vpaths when you add a new HWP