drbd: New configuration parameters for dealing with network congestion

net {
    on_congestion {block|pull-ahead|disconnect};
    congestion-fill {sectors};
    congestion-extents {al-extents};
}

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h
index ade91107c9a5..8cde3945d1f7 100644
--- a/include/linux/drbd_nl.h
+++ b/include/linux/drbd_nl.h
@@ -56,6 +56,9 @@ NL_PACKET(net_conf, 5,
         NL_INTEGER(     39,     T_MAY_IGNORE,   rr_conflict)
         NL_INTEGER(     40,     T_MAY_IGNORE,   ping_timeo)
         NL_INTEGER(     67,     T_MAY_IGNORE,   rcvbuf_size)
+        NL_INTEGER(     81,     T_MAY_IGNORE,   on_congestion)
+        NL_INTEGER(     82,     T_MAY_IGNORE,   cong_fill)
+        NL_INTEGER(     83,     T_MAY_IGNORE,   cong_extents)
           /* 59 addr_family was available in GIT, never released */
         NL_BIT(         60,     T_MANDATORY,    mind_af)
         NL_BIT(         27,     T_MAY_IGNORE,   want_lose)