added utility to dump descriptors

diff --git a/ti/runtime/netapi/tools/dumpdesc.c b/ti/runtime/netapi/tools/dumpdesc.c
new file mode 100644 (file)
index 0000000..fd56ca7
--- /dev/null
+++ b/ti/runtime/netapi/tools/dumpdesc.c
@@ -0,0 +1,132 @@
+/*
+ * devmem2.c: Simple program to read/write from/to any location in memory.
+ *
+ *  Copyright (C) 2000, Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
+ *
+ *
+ * This software has been developed for the LART computing board
+ * (http://www.lart.tudelft.nl/). The development has been sponsored by
+ * the Mobile MultiMedia Communications (http://www.mmc.tudelft.nl/)
+ * and Ubiquitous Communications (http://www.ubicom.tudelft.nl/)
+ * projects.
+ *
+ * The author can be reached at:
+ *
+ *  Jan-Derk Bakker
+ *  Information and Communication Theory Group
+ *  Faculty of Information Technology and Systems
+ *  Delft University of Technology
+ *  P.O. Box 5031
+ *  2600 GA Delft
+ *  The Netherlands
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <termios.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+//dump_descr
+void dump_descr(unsigned long *p, int n)
+{
+   printf("--------dump of descriptor %d %x\n", n, (int) p);
+   printf("> %x %x %x %x %x %x %x %x\n",p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7]);
+   printf("> %x %x %x %x %x %x %x %x\n",p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]);
+   printf("-----------------------------\n");
+}
+
+static inline unsigned long netapi_timing_start(void)
+{
+        volatile int vval;
+        //read clock
+        asm volatile("mrc p15, 0, %0, c9, c13, 0" :  "=r"(vval));
+        return vval;
+}
+static inline unsigned long netapi_timing_stop(void)
+{
+        volatile int vval2;
+        //read clock
+        asm volatile("mrc p15, 0, %0, c9, c13, 0" :  "=r"(vval2));
+        return vval2;
+}
+
+  
+#define FATAL do { fprintf(stderr, "Error at line %d, file %s (%d) [%s]\n", \
+  __LINE__, __FILE__, errno, strerror(errno)); exit(1); } while(0)
+ 
+#define MAP_SIZE 4096UL
+#define MAP_MASK (MAP_SIZE - 1)
+
+
+int cached = 0;
+int test_loc = 1;
+int sum=0;
+
+int main(int argc, char **argv) {
+    int fd;
+    void *map_base, *virt_addr; 
+#define N 50
+       unsigned long read_result[N], writeval;
+       off_t target;
+       int access_type = 'w';
+volatile unsigned long t1;
+volatile unsigned long t2;
+int i;
+int num2dump=32;
+
+       
+       if(argc < 2) {
+               fprintf(stderr, "\nUsage:\t%s { address } nun ] ]\n"
+                       "\taddress : memory address to act upon\n"
+                       "\tnum    : #descriptors to be dumped (def 32)\n\n",
+                       argv[0]);
+               exit(1);
+       }
+       target = strtoul(argv[1], 0, 0);
+        if (argc ==3) num2dump=atoi(argv[2]);
+
+
+    if((fd = open("/dev/mem", ((cached) ? (O_RDWR) : (O_RDWR | O_SYNC)))) == -1) FATAL;
+    printf("/dev/mem opened.\n"); 
+    fflush(stdout);
+    
+    /* Map one page */
+    map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, target & ~MAP_MASK);
+    if(map_base == (void *) -1) FATAL;
+    printf("Memory mapped at address %p. (cached=%d)\n", map_base,cached); 
+    fflush(stdout);
+    
+    virt_addr = map_base + (target & MAP_MASK);
+for(i=0;i<num2dump;i++)
+{
+   long * tip= &((long *)virt_addr)[32*i];
+   dump_descr(tip, i);
+}
+    if(munmap(map_base, MAP_SIZE) == -1) FATAL;
+    close(fd);
+    return 0;
+}
+