compat: Add gen_stats include to define tc hw stats.

Update kernel UAPI to support dumping hardware stats of tc filters. Signed-off-by: Paul Blakey <[email protected]> Reviewed-by: Roi Dayan <[email protected]> Reviewed-by: Maxime Coquelin <[email protected]> Signed-off-by: Ilya Maximets <[email protected]>
asdlei99 · Mar 4, 2022 · de634e4 · de634e4
1 parent 015994d
commit de634e4
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diff --git a/acinclude.m4 b/acinclude.m4
@@ -305,6 +305,13 @@ AC_DEFUN([OVS_CHECK_LINUX_TC], [
     ])],
     [AC_DEFINE([HAVE_TCA_SKBEDIT_FLAGS], [1],
                [Define to 1 if TCA_SKBEDIT_FLAGS is available.])])
+
+  AC_COMPILE_IFELSE([
+    AC_LANG_PROGRAM([#include <linux/gen_stats.h>], [
+        int x = TCA_STATS_PKT64;
+    ])],
+    [AC_DEFINE([HAVE_TCA_STATS_PKT64], [1],
+               [Define to 1 if TCA_STATS_PKT64 is available.])])
 ])
 
 dnl OVS_CHECK_LINUX_SCTP_CT

diff --git a/include/linux/automake.mk b/include/linux/automake.mk
@@ -2,6 +2,7 @@ noinst_HEADERS += \
 	include/linux/netlink.h \
 	include/linux/netfilter/nf_conntrack_sctp.h \
 	include/linux/pkt_cls.h \
+	include/linux/gen_stats.h \
 	include/linux/tc_act/tc_mpls.h \
 	include/linux/tc_act/tc_pedit.h \
 	include/linux/tc_act/tc_skbedit.h \

diff --git a/include/linux/gen_stats.h b/include/linux/gen_stats.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __LINUX_GEN_STATS_WRAPPER_H
+#define __LINUX_GEN_STATS_WRAPPER_H 1
+
+#if defined(__KERNEL__) || defined(HAVE_TCA_STATS_PKT64)
+#include_next <linux/gen_stats.h>
+#else
+#include <linux/types.h>
+
+enum {
+	TCA_STATS_UNSPEC,
+	TCA_STATS_BASIC,
+	TCA_STATS_RATE_EST,
+	TCA_STATS_QUEUE,
+	TCA_STATS_APP,
+	TCA_STATS_RATE_EST64,
+	TCA_STATS_PAD,
+	TCA_STATS_BASIC_HW,
+	TCA_STATS_PKT64,
+	__TCA_STATS_MAX,
+};
+#define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
+
+/**
+ * struct gnet_stats_basic - byte/packet throughput statistics
+ * @bytes: number of seen bytes
+ * @packets: number of seen packets
+ */
+struct gnet_stats_basic {
+	__u64	bytes;
+	__u32	packets;
+};
+
+/**
+ * struct gnet_stats_rate_est - rate estimator
+ * @bps: current byte rate
+ * @pps: current packet rate
+ */
+struct gnet_stats_rate_est {
+	__u32	bps;
+	__u32	pps;
+};
+
+/**
+ * struct gnet_stats_rate_est64 - rate estimator
+ * @bps: current byte rate
+ * @pps: current packet rate
+ */
+struct gnet_stats_rate_est64 {
+	__u64	bps;
+	__u64	pps;
+};
+
+/**
+ * struct gnet_stats_queue - queuing statistics
+ * @qlen: queue length
+ * @backlog: backlog size of queue
+ * @drops: number of dropped packets
+ * @requeues: number of requeues
+ * @overlimits: number of enqueues over the limit
+ */
+struct gnet_stats_queue {
+	__u32	qlen;
+	__u32	backlog;
+	__u32	drops;
+	__u32	requeues;
+	__u32	overlimits;
+};
+
+/**
+ * struct gnet_estimator - rate estimator configuration
+ * @interval: sampling period
+ * @ewma_log: the log of measurement window weight
+ */
+struct gnet_estimator {
+	signed char	interval;
+	unsigned char	ewma_log;
+};
+
+#endif /* __KERNEL__ || !HAVE_TCA_STATS_PKT64 */
+#endif /* __LINUX_GEN_STATS_WRAPPER_H */