Switch saddr/daddr to u32's within tools/tcpconnlat.py (#1859)

switch some fields from u64 to their natural size u32/u16

tools/tcpconnlat.py

@@ -74,7 +74,7 @@ bpf_text = """
 
 struct info_t {
     u64 ts;
-    u64 pid;
+    u32 pid;
     char task[TASK_COMM_LEN];
 };
 BPF_HASH(start, struct sock *, struct info_t);
@@ -83,11 +83,11 @@ BPF_HASH(start, struct sock *, struct info_t);
 struct ipv4_data_t {
     // XXX: switch some to u32's when supported
     u64 ts_us;
-    u64 pid;
-    u64 saddr;
-    u64 daddr;
+    u32 pid;
+    u32 saddr;
+    u32 daddr;
     u64 ip;
-    u64 dport;
+    u16 dport;
     u64 delta_us;
     char task[TASK_COMM_LEN];
 };
@@ -95,11 +95,11 @@ BPF_PERF_OUTPUT(ipv4_events);
 
 struct ipv6_data_t {
     u64 ts_us;
-    u64 pid;
+    u32 pid;
     unsigned __int128 saddr;
     unsigned __int128 daddr;
     u64 ip;
-    u64 dport;
+    u16 dport;
     u64 delta_us;
     char task[TASK_COMM_LEN];
 };
@@ -206,11 +206,11 @@ TASK_COMM_LEN = 16      # linux/sched.h
 class Data_ipv4(ct.Structure):
     _fields_ = [
         ("ts_us", ct.c_ulonglong),
-        ("pid", ct.c_ulonglong),
-        ("saddr", ct.c_ulonglong),
-        ("daddr", ct.c_ulonglong),
+        ("pid", ct.c_uint),
+        ("saddr", ct.c_uint),
+        ("daddr", ct.c_uint),
         ("ip", ct.c_ulonglong),
-        ("dport", ct.c_ulonglong),
+        ("dport", ct.c_ushort),
         ("delta_us", ct.c_ulonglong),
         ("task", ct.c_char * TASK_COMM_LEN)
     ]
@@ -218,11 +218,11 @@ class Data_ipv4(ct.Structure):
 class Data_ipv6(ct.Structure):
     _fields_ = [
         ("ts_us", ct.c_ulonglong),
-        ("pid", ct.c_ulonglong),
+        ("pid", ct.c_uint),
         ("saddr", (ct.c_ulonglong * 2)),
         ("daddr", (ct.c_ulonglong * 2)),
         ("ip", ct.c_ulonglong),
-        ("dport", ct.c_ulonglong),
+        ("dport", ct.c_ushort),
         ("delta_us", ct.c_ulonglong),
         ("task", ct.c_char * TASK_COMM_LEN)
     ]