A new counter mptcpi_subflows_total has been added in mptcpi_flags to count the total amount of subflows from mptcp_info including the initial one into kernel in this commit: 6ebf6f90ab4a ("mptcp: add mptcpi_subflows_total counter") This patch prints out this counter into mptcp_stats output. Acked-by: Matthieu Baerts <matttbe@kernel.org> Signed-off-by: Geliang Tang <geliang.tang@linux.dev> --- include/uapi/linux/mptcp.h | 1 + misc/ss.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/include/uapi/linux/mptcp.h b/include/uapi/linux/mptcp.h index XXXXXXX..XXXXXXX 100644 --- a/include/uapi/linux/mptcp.h +++ b/include/uapi/linux/mptcp.h @@ -XXX,XX +XXX,XX @@ struct mptcp_info { __u64 mptcpi_bytes_sent; __u64 mptcpi_bytes_received; __u64 mptcpi_bytes_acked; + __u8 mptcpi_subflows_total; }; /* MPTCP Reset reason codes, rfc8684 */ diff --git a/misc/ss.c b/misc/ss.c index XXXXXXX..XXXXXXX 100644 --- a/misc/ss.c +++ b/misc/ss.c @@ -XXX,XX +XXX,XX @@ static void mptcp_stats_print(struct mptcp_info *s) out(" bytes_received:%llu", s->mptcpi_bytes_received); if (s->mptcpi_bytes_acked) out(" bytes_acked:%llu", s->mptcpi_bytes_acked); + if (s->mptcpi_subflows_total) + out(" subflows_total:%u", s->mptcpi_subflows_total); } static void mptcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, -- 2.35.3 A new counter mptcpi_subflows_total has been added in mptcpi_flags to count the total amount of subflows from mptcp_info including the initial one. This patch prints out it into mptcp_stats output. Signed-off-by: Geliang Tang <geliang.tang@suse.com> --- include/uapi/linux/mptcp.h | 1 + misc/ss.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/include/uapi/linux/mptcp.h b/include/uapi/linux/mptcp.h index XXXXXXX..XXXXXXX 100644 --- a/include/uapi/linux/mptcp.h +++ b/include/uapi/linux/mptcp.h @@ -XXX,XX +XXX,XX @@ struct mptcp_info { __u64 mptcpi_bytes_sent; __u64 mptcpi_bytes_received; __u64 mptcpi_bytes_acked; + __u8 mptcpi_subflows_total; }; /* diff --git a/misc/ss.c b/misc/ss.c index XXXXXXX..XXXXXXX 100644 --- a/misc/ss.c +++ b/misc/ss.c @@ -XXX,XX +XXX,XX @@ static void mptcp_stats_print(struct mptcp_info *s) out(" bytes_received:%llu", s->mptcpi_bytes_received); if (s->mptcpi_bytes_acked) out(" bytes_acked:%llu", s->mptcpi_bytes_acked); + if (s->mptcpi_subflows_total) + out(" subflows_total:%u", s->mptcpi_subflows_total); } static void mptcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, -- 2.35.3