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tc_util: Add support for showing TCA_STATS_BASIC_HW statistics

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Add support for showing hardware specific counters to easy
troubleshooting hardware offload.

$ tc -s filter show dev enp3s0np0 parent ffff:
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1
  eth_type ipv4
  dst_ip 2.0.0.0
  src_ip 1.0.0.0
  ip_flags nofrag
  in_hw
        action order 1: mirred (Egress Redirect to device eth1) stolen
        index 1 ref 1 bind 1 installed 0 sec used 0 sec
        Action statistics:
        Sent 534884742 bytes 8915697 pkt (dropped 0, overlimits 0 requeues 0)
        Sent software 187542 bytes 4077 pkt
        Sent hardware 534697200 bytes 8911620 pkt
        backlog 0b 0p requeues 0
        cookie 89173e6a44447001becfd486bda17e29

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
Eelco Chaudron 2018-10-02 03:27:18 -04:00 committed by David Ahern
parent 56155d4df8
commit 5ac138324e
1 changed files with 41 additions and 0 deletions
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41
tc/tc_util.c
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@ -754,6 +754,44 @@ void print_tm(FILE *f, const struct tcf_t *tm)
}
}
static void print_tcstats_basic_hw(struct rtattr **tbs, char *prefix)
{
struct gnet_stats_basic bs_hw;
if (!tbs[TCA_STATS_BASIC_HW])
return;
memcpy(&bs_hw, RTA_DATA(tbs[TCA_STATS_BASIC_HW]),
MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC_HW]), sizeof(bs_hw)));
if (bs_hw.bytes == 0 && bs_hw.packets == 0)
return;
if (tbs[TCA_STATS_BASIC]) {
struct gnet_stats_basic bs;
memcpy(&bs, RTA_DATA(tbs[TCA_STATS_BASIC]),
MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]),
sizeof(bs)));
if (bs.bytes >= bs_hw.bytes && bs.packets >= bs_hw.packets) {
print_string(PRINT_FP, NULL, "%s", _SL_);
print_string(PRINT_FP, NULL, "%s", prefix);
print_lluint(PRINT_ANY, "sw_bytes",
"Sent software %llu bytes",
bs.bytes - bs_hw.bytes);
print_uint(PRINT_ANY, "sw_packets", " %u pkt",
bs.packets - bs_hw.packets);
}
}
print_string(PRINT_FP, NULL, "%s", _SL_);
print_string(PRINT_FP, NULL, "%s", prefix);
print_lluint(PRINT_ANY, "hw_bytes", "Sent hardware %llu bytes",
bs_hw.bytes);
print_uint(PRINT_ANY, "hw_packets", " %u pkt", bs_hw.packets);
}
void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtattr **xstats)
{
SPRINT_BUF(b1);
@ -780,6 +818,9 @@ void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtat
print_uint(PRINT_ANY, "requeues", " requeues %u) ", q.requeues);
}
if (tbs[TCA_STATS_BASIC_HW])
print_tcstats_basic_hw(tbs, prefix);
if (tbs[TCA_STATS_RATE_EST64]) {
struct gnet_stats_rate_est64 re = {0};