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tools/gdb: Add TCP in netstats

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(gdb) netstats
IOB:       size    ntotal     nfree     nwait nthrottle
           1518        72        70         0        38
<...>
TCP Conn:  st flg ref tmr uack nrt       txbuf       rxbuf+ofo           local_address        remote_address
0           4  61   1   3    0   0     0/16384    28/16384+0            10.0.1.2:11315        10.0.1.1:5001

Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
This commit is contained in:
Zhe Weng
2024-08-23 11:33:05 +08:00
committed by Xiang Xiao
parent 395090284a
commit d0884828ed
1 changed files with 51 additions and 0 deletions
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tools/gdb/net.py
+51
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@@ -92,6 +92,16 @@ def wrbuffer_inqueue_size(queue=None, protocol="tcp"):
return total
def tcp_ofoseg_bufsize(conn):
"""Calculate the pending size of out-of-order buffer of a tcp connection"""
total = 0
if utils.get_symbol_value("CONFIG_NET_TCP_OUT_OF_ORDER"):
for i in range(conn["nofosegs"]):
total += conn["ofosegs"][i]["data"]["io_pktlen"]
return total
class NetStats(gdb.Command):
"""Network statistics"""
@@ -153,6 +163,44 @@ class NetStats(gdb.Command):
except gdb.error as e:
gdb.write("Failed to get Net Stats: %s\n" % e)
def tcp_stats(self):
try:
gdb.write(
"TCP Conn: %3s %3s %3s %3s %4s %3s"
% ("st", "flg", "ref", "tmr", "uack", "nrt")
)
gdb.write(
" %11s %11s+%-5s %21s %21s\n"
% ("txbuf", "rxbuf", "ofo", "local_address", "remote_address")
)
for idx, conn in enumerate(socket_for_each_entry("tcp")):
state = conn["tcpstateflags"]
flags = conn["sconn"]["s_flags"]
ref = conn["crefs"]
timer = conn["timer"]
unacked = conn["tx_unacked"]
nrtx = conn["nrtx"]
txbuf = utils.get_field(conn, "snd_bufs", -1)
rxbuf = utils.get_field(conn, "rcv_bufs", -1)
txsz = wrbuffer_inqueue_size(
utils.get_field(conn, "unacked_q"), "tcp"
) + wrbuffer_inqueue_size(utils.get_field(conn, "write_q"), "tcp")
rxsz = conn["readahead"]["io_pktlen"] if conn["readahead"] else 0
ofosz = tcp_ofoseg_bufsize(conn)
laddr, lport, raddr, rport = get_ip_port(conn)
gdb.write(
"%-4d %3x %3x %3d %3d %4d %3d"
% (idx, state, flags, ref, timer, unacked, nrtx)
)
gdb.write(
" %5d/%-5d %5d/%-5d+%-5d %15s:%-5d %15s:%-5d\n"
% (txsz, txbuf, rxsz, rxbuf, ofosz, laddr, lport, raddr, rport)
)
except gdb.error as e:
gdb.write("Failed to get TCP stats: %s\n" % e)
def udp_stats(self):
try:
gdb.write(
@@ -181,6 +229,9 @@ class NetStats(gdb.Command):
if utils.get_symbol_value("CONFIG_NET_STATISTICS"):
self.pkt_stats()
gdb.write("\n")
if utils.get_symbol_value("CONFIG_NET_TCP"):
self.tcp_stats()
gdb.write("\n")
if utils.get_symbol_value("CONFIG_NET_UDP"):
self.udp_stats()
gdb.write("\n")