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From 1610b7b240601085ea42848e8d86469a091e560c Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Thu, 25 Oct 2018 17:01:52 +0200
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Subject: [PATCH] tc_util: Add support for showing TCA_STATS_BASIC_HW
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statistics
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1637440
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Upstream Status: iproute2.git commit 5ac138324e31c
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commit 5ac138324e31c75edc65c69cedcf699fb624c113
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Author: Eelco Chaudron <echaudro@redhat.com>
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Date: Tue Oct 2 03:27:18 2018 -0400
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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
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troubleshooting hardware offload.
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$ tc -s filter show dev enp3s0np0 parent ffff:
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filter protocol ip pref 1 flower chain 0
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filter protocol ip pref 1 flower chain 0 handle 0x1
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eth_type ipv4
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dst_ip 2.0.0.0
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src_ip 1.0.0.0
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ip_flags nofrag
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in_hw
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action order 1: mirred (Egress Redirect to device eth1) stolen
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index 1 ref 1 bind 1 installed 0 sec used 0 sec
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Action statistics:
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Sent 534884742 bytes 8915697 pkt (dropped 0, overlimits 0 requeues 0)
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Sent software 187542 bytes 4077 pkt
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Sent hardware 534697200 bytes 8911620 pkt
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backlog 0b 0p requeues 0
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cookie 89173e6a44447001becfd486bda17e29
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Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
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Signed-off-by: David Ahern <dsahern@gmail.com>
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---
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tc/tc_util.c | 41 +++++++++++++++++++++++++++++++++++++++++
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1 file changed, 41 insertions(+)
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diff --git a/tc/tc_util.c b/tc/tc_util.c
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index d757852..5a1bbf2 100644
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--- a/tc/tc_util.c
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+++ b/tc/tc_util.c
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@@ -800,6 +800,44 @@ void print_tm(FILE *f, const struct tcf_t *tm)
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}
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}
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+static void print_tcstats_basic_hw(struct rtattr **tbs, char *prefix)
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+{
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+ struct gnet_stats_basic bs_hw;
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+
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+ if (!tbs[TCA_STATS_BASIC_HW])
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+ return;
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+
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+ memcpy(&bs_hw, RTA_DATA(tbs[TCA_STATS_BASIC_HW]),
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+ MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC_HW]), sizeof(bs_hw)));
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+
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+ if (bs_hw.bytes == 0 && bs_hw.packets == 0)
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+ return;
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+
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+ if (tbs[TCA_STATS_BASIC]) {
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+ struct gnet_stats_basic bs;
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+
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+ memcpy(&bs, RTA_DATA(tbs[TCA_STATS_BASIC]),
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+ MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]),
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+ sizeof(bs)));
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+
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+ if (bs.bytes >= bs_hw.bytes && bs.packets >= bs_hw.packets) {
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+ print_string(PRINT_FP, NULL, "%s", _SL_);
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+ print_string(PRINT_FP, NULL, "%s", prefix);
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+ print_lluint(PRINT_ANY, "sw_bytes",
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+ "Sent software %llu bytes",
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+ bs.bytes - bs_hw.bytes);
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+ print_uint(PRINT_ANY, "sw_packets", " %u pkt",
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+ bs.packets - bs_hw.packets);
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+ }
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+ }
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+
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+ print_string(PRINT_FP, NULL, "%s", _SL_);
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+ print_string(PRINT_FP, NULL, "%s", prefix);
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+ print_lluint(PRINT_ANY, "hw_bytes", "Sent hardware %llu bytes",
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+ bs_hw.bytes);
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+ print_uint(PRINT_ANY, "hw_packets", " %u pkt", bs_hw.packets);
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+}
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+
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void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtattr **xstats)
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{
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SPRINT_BUF(b1);
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@@ -826,6 +864,9 @@ void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtat
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print_uint(PRINT_ANY, "requeues", " requeues %u) ", q.requeues);
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}
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+ if (tbs[TCA_STATS_BASIC_HW])
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+ print_tcstats_basic_hw(tbs, prefix);
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+
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if (tbs[TCA_STATS_RATE_EST64]) {
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struct gnet_stats_rate_est64 re = {0};
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--
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1.8.3.1
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