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authorIngo Molnar <mingo@kernel.org>2014-08-24 22:32:24 +0200
committerIngo Molnar <mingo@kernel.org>2014-08-24 22:32:24 +0200
commit83bc90e11576f9c100f8ef4ba2bcd0b89212e3fb (patch)
treee59186b4d315c80255851e0d204143ecc21399a0 /include/uapi/linux/errqueue.h
parente21ded5ecc531a64d6fc0c1693285e890b4e9569 (diff)
parent451fd72219dd6f3355e2d036c598544c760ee532 (diff)
Merge branch 'linus' into perf/core, to fix conflicts
Conflicts: arch/x86/kernel/cpu/perf_event_intel_uncore*.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/uapi/linux/errqueue.h')
-rw-r--r--include/uapi/linux/errqueue.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/uapi/linux/errqueue.h b/include/uapi/linux/errqueue.h
index aacd4fb7102a..07bdce1f444a 100644
--- a/include/uapi/linux/errqueue.h
+++ b/include/uapi/linux/errqueue.h
@@ -22,5 +22,25 @@ struct sock_extended_err {
#define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1))
+/**
+ * struct scm_timestamping - timestamps exposed through cmsg
+ *
+ * The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*
+ * communicate network timestamps by passing this struct in a cmsg with
+ * recvmsg(). See Documentation/networking/timestamping.txt for details.
+ */
+struct scm_timestamping {
+ struct timespec ts[3];
+};
+
+/* The type of scm_timestamping, passed in sock_extended_err ee_info.
+ * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
+ * is zero, then this is a hardware timestamp and recorded in ts[2].
+ */
+enum {
+ SCM_TSTAMP_SND, /* driver passed skb to NIC, or HW */
+ SCM_TSTAMP_SCHED, /* data entered the packet scheduler */
+ SCM_TSTAMP_ACK, /* data acknowledged by peer */
+};
#endif /* _UAPI_LINUX_ERRQUEUE_H */