tcp_bbr: add BBR congestion control

[linux-2.6-microblaze.git] / include / uapi / linux / inet_diag.h

diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h
index b5c366f..509cd96 100644 (file)
--- a/include/uapi/linux/inet_diag.h
+++ b/include/uapi/linux/inet_diag.h
@@ -124,6 +124,7 @@ enum {
        INET_DIAG_PEERS,
        INET_DIAG_PAD,
        INET_DIAG_MARK,
+       INET_DIAG_BBRINFO,
        __INET_DIAG_MAX,
 };
 
@@ -157,8 +158,20 @@ struct tcp_dctcp_info {
        __u32   dctcp_ab_tot;
 };
 
+/* INET_DIAG_BBRINFO */
+
+struct tcp_bbr_info {
+       /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */
+       __u32   bbr_bw_lo;              /* lower 32 bits of bw */
+       __u32   bbr_bw_hi;              /* upper 32 bits of bw */
+       __u32   bbr_min_rtt;            /* min-filtered RTT in uSec */
+       __u32   bbr_pacing_gain;        /* pacing gain shifted left 8 bits */
+       __u32   bbr_cwnd_gain;          /* cwnd gain shifted left 8 bits */
+};
+
 union tcp_cc_info {
        struct tcpvegas_info    vegas;
        struct tcp_dctcp_info   dctcp;
+       struct tcp_bbr_info     bbr;
 };
 #endif /* _UAPI_INET_DIAG_H_ */