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Message-Id: <20200526094055.17526-1-tuong.t.lien@dektech.com.au>
Date: Tue, 26 May 2020 16:40:55 +0700
From: Tuong Lien <tuong.t.lien@...tech.com.au>
To: dsahern@...il.com, jmaloy@...hat.com, maloy@...jonn.com,
ying.xue@...driver.com, netdev@...r.kernel.org
Cc: tipc-discussion@...ts.sourceforge.net
Subject: [iproute2-next] tipc: enable printing of broadcast rcv link stats
This commit allows printing the statistics of a broadcast-receiver link
using the same tipc command, but with additional 'link' options:
$ tipc link stat show --help
Usage: tipc link stat show [ link { LINK | SUBSTRING | all } ]
With:
+ 'LINK' : print the stats of the specific link 'LINK';
+ 'SUBSTRING' : print the stats of all the links having the 'SUBSTRING'
in name;
+ 'all' : print all the links' stats incl. the broadcast-receiver
ones;
Also, a link stats can be reset in the usual way by specifying the link
name in command.
For example:
$ tipc l st sh l br
Link <broadcast-link>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:5011125 fragments:4968774/149643 bundles:38402/307061
RX naks:781484 defs:0 dups:0
TX naks:0 acks:0 retrans:330259
Congestion link:50657 Send queue max:0 avg:0
Link <broadcast-link:1001001>
Window:50 packets
RX packets:95146 fragments:95040/1980 bundles:1/2
TX packets:0 fragments:0/0 bundles:0/0
RX naks:380938 defs:83962 dups:403
TX naks:8362 acks:0 retrans:170662
Congestion link:0 Send queue max:0 avg:0
Link <broadcast-link:1001002>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:0 fragments:0/0 bundles:0/0
RX naks:400546 defs:0 dups:0
TX naks:0 acks:0 retrans:159597
Congestion link:0 Send queue max:0 avg:0
$ tipc l st sh l 1001002
Link <1001003:data0-1001002:data0>
ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets
RX packets:99546 fragments:0/0 bundles:33/877
TX packets:629 fragments:0/0 bundles:35/828
TX profile sample:8 packets average:390 octets
0-64:75% -256:0% -1024:0% -4096:25% -16384:0% -32768:0% -66000:0%
RX states:488714 probes:7397 naks:0 defs:4 dups:5
TX states:27734 probes:18016 naks:5 acks:2305 retrans:0
Congestion link:0 Send queue max:0 avg:0
Link <broadcast-link:1001002>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:0 fragments:0/0 bundles:0/0
RX naks:400546 defs:0 dups:0
TX naks:0 acks:0 retrans:159597
Congestion link:0 Send queue max:0 avg:0
$ tipc l st re l broadcast-link:1001002
$ tipc l st sh l broadcast-link:1001002
Link <broadcast-link:1001002>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:0 fragments:0/0 bundles:0/0
RX naks:0 defs:0 dups:0
TX naks:0 acks:0 retrans:0
Congestion link:0 Send queue max:0 avg:0
Acked-by: Ying Xue <ying.xue@...driver.com>
Acked-by: Jon Maloy <jmaloy@...hat.com>
Signed-off-by: Tuong Lien <tuong.t.lien@...tech.com.au>
---
tipc/link.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/tipc/link.c b/tipc/link.c
index e123c186..ba77a201 100644
--- a/tipc/link.c
+++ b/tipc/link.c
@@ -334,7 +334,7 @@ static int _show_link_stat(const char *name, struct nlattr *attrs[],
open_json_object(NULL);
- print_string(PRINT_ANY, "link", "\nLink <%s>\n", name);
+ print_string(PRINT_ANY, "link", "Link <%s>\n", name);
print_string(PRINT_JSON, "state", "", NULL);
open_json_array(PRINT_JSON, NULL);
if (attrs[TIPC_NLA_LINK_ACTIVE])
@@ -433,7 +433,7 @@ static int _show_link_stat(const char *name, struct nlattr *attrs[],
mnl_attr_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]));
print_uint(PRINT_ANY, "send queue max", " Send queue max:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]));
- print_uint(PRINT_ANY, "avg", " avg:%u\n",
+ print_uint(PRINT_ANY, "avg", " avg:%u\n\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE]));
close_json_object();
@@ -496,7 +496,7 @@ static int _show_bc_link_stat(const char *name, struct nlattr *prop[],
mnl_attr_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]));
print_uint(PRINT_ANY, "send queue max", " Send queue max:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]));
- print_uint(PRINT_ANY, "avg", " avg:%u\n",
+ print_uint(PRINT_ANY, "avg", " avg:%u\n\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE]));
close_json_object();
@@ -527,8 +527,10 @@ static int link_stat_show_cb(const struct nlmsghdr *nlh, void *data)
name = mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]);
- /* If a link is passed, skip all but that link */
- if (link && (strcmp(name, link) != 0))
+ /* If a link is passed, skip all but that link.
+ * Support a substring matching as well.
+ */
+ if (link && !strstr(name, link))
return MNL_CB_OK;
if (attrs[TIPC_NLA_LINK_BROADCAST]) {
@@ -540,7 +542,7 @@ static int link_stat_show_cb(const struct nlmsghdr *nlh, void *data)
static void cmd_link_stat_show_help(struct cmdl *cmdl)
{
- fprintf(stderr, "Usage: %s link stat show [ link LINK ]\n",
+ fprintf(stderr, "Usage: %s link stat show [ link { LINK | SUBSTRING | all } ]\n",
cmdl->argv[0]);
}
@@ -554,6 +556,7 @@ static int cmd_link_stat_show(struct nlmsghdr *nlh, const struct cmd *cmd,
{ "link", OPT_KEYVAL, NULL },
{ NULL }
};
+ struct nlattr *attrs;
int err = 0;
if (help_flag) {
@@ -571,8 +574,14 @@ static int cmd_link_stat_show(struct nlmsghdr *nlh, const struct cmd *cmd,
return -EINVAL;
opt = get_opt(opts, "link");
- if (opt)
- link = opt->val;
+ if (opt) {
+ if (strcmp(opt->val, "all"))
+ link = opt->val;
+ /* Set the flag to dump all bc links */
+ attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
+ mnl_attr_put(nlh, TIPC_NLA_LINK_BROADCAST, 0, NULL);
+ mnl_attr_nest_end(nlh, attrs);
+ }
new_json_obj(json);
err = msg_dumpit(nlh, link_stat_show_cb, link);
--
2.13.7
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