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Date: Tue, 17 Sep 2013 04:19:03 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Stephen Hemminger <stephen@...workplumber.org> Cc: netdev <netdev@...r.kernel.org> Subject: [PATCH iproute2] tc: support TCA_STATS_RATE_EST64 From: Eric Dumazet <edumazet@...gle.com> Since linux-3.11, rate estimator can provide TCA_STATS_RATE_EST64 when rate (bytes per second) is above 2^32 (~34 Mbits) Change tc to use this attribute for high rates. Signed-off-by: Eric Dumazet <edumazet@...gle.com> --- tc/tc_util.c | 26 ++++++++++++++++++++------ tc/tc_util.h | 4 ++-- 2 files changed, 22 insertions(+), 8 deletions(-) diff --git a/tc/tc_util.c b/tc/tc_util.c index 8114c97..be3ed07 100644 --- a/tc/tc_util.c +++ b/tc/tc_util.c @@ -171,20 +171,24 @@ int get_rate(unsigned *rate, const char *str) return 0; } -void print_rate(char *buf, int len, __u32 rate) +void print_rate(char *buf, int len, __u64 rate) { double tmp = (double)rate*8; extern int use_iec; if (use_iec) { - if (tmp >= 1000.0*1024.0*1024.0) + if (tmp >= 1000.0*1024.0*1024.0*1024.0) + snprintf(buf, len, "%.0fGibit", tmp/(1024.0*1024.0*1024.0)); + else if (tmp >= 1000.0*1024.0*1024.0) snprintf(buf, len, "%.0fMibit", tmp/(1024.0*1024.0)); else if (tmp >= 1000.0*1024) snprintf(buf, len, "%.0fKibit", tmp/1024); else snprintf(buf, len, "%.0fbit", tmp); } else { - if (tmp >= 1000.0*1000000.0) + if (tmp >= 1000.0*1000000000.0) + snprintf(buf, len, "%.0fGbit", tmp/1000000000.0); + else if (tmp >= 1000.0*1000000.0) snprintf(buf, len, "%.0fMbit", tmp/1000000.0); else if (tmp >= 1000.0 * 1000.0) snprintf(buf, len, "%.0fKbit", tmp/1000.0); @@ -193,7 +197,7 @@ void print_rate(char *buf, int len, __u32 rate) } } -char * sprint_rate(__u32 rate, char *buf) +char * sprint_rate(__u64 rate, char *buf) { print_rate(buf, SPRINT_BSIZE-1, rate); return buf; @@ -460,9 +464,19 @@ void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtat q.drops, q.overlimits, q.requeues); } - if (tbs[TCA_STATS_RATE_EST]) { + if (tbs[TCA_STATS_RATE_EST64]) { + struct gnet_stats_rate_est64 re = {0}; + + memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST64]), + MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST64]), + sizeof(re))); + fprintf(fp, "\n%srate %s %llupps ", + prefix, sprint_rate(re.bps, b1), re.pps); + } else if (tbs[TCA_STATS_RATE_EST]) { struct gnet_stats_rate_est re = {0}; - memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST]), sizeof(re))); + + memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST]), + MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST]), sizeof(re))); fprintf(fp, "\n%srate %s %upps ", prefix, sprint_rate(re.bps, b1), re.pps); } diff --git a/tc/tc_util.h b/tc/tc_util.h index 4f54436..7c3709f 100644 --- a/tc/tc_util.h +++ b/tc/tc_util.h @@ -63,12 +63,12 @@ extern int get_size_and_cell(unsigned *size, int *cell_log, char *str); extern int get_time(unsigned *time, const char *str); extern int get_linklayer(unsigned *val, const char *arg); -extern void print_rate(char *buf, int len, __u32 rate); +extern void print_rate(char *buf, int len, __u64 rate); extern void print_size(char *buf, int len, __u32 size); extern void print_qdisc_handle(char *buf, int len, __u32 h); extern void print_time(char *buf, int len, __u32 time); extern void print_linklayer(char *buf, int len, unsigned linklayer); -extern char * sprint_rate(__u32 rate, char *buf); +extern char * sprint_rate(__u64 rate, char *buf); extern char * sprint_size(__u32 size, char *buf); extern char * sprint_qdisc_handle(__u32 h, char *buf); extern char * sprint_tc_classid(__u32 h, char *buf); -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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