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bridge: vlan: add global mcast_last_member_count option 

Add control and dump support for the global mcast_last_member_count option
which controls the number of queries the bridge will send on the vlan after
a leave is received (default 2).
Syntax:
 $ bridge vlan global set dev bridge vid 1 mcast_last_member_count 10

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
This commit is contained in:
Nikolay Aleksandrov 2021-08-28 14:07:56 +03:00 committed by David Ahern
parent a8d7212a4f
commit 3399c0759f
2 changed files with 24 additions and 1 deletions
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15
bridge/vlan.c
View File

@ -42,6 +42,7 @@ static void usage(void)
" [ mcast_snooping MULTICAST_SNOOPING ]\n"
" [ mcast_igmp_version IGMP_VERSION ]\n"
" [ mcast_mld_version MLD_VERSION ]\n"
" [ mcast_last_member_count LAST_MEMBER_COUNT ]\n"
" bridge vlan global { show } [ dev DEV ] [ vid VLAN_ID ]\n");
exit(-1);
}
@ -359,6 +360,7 @@ static int vlan_global_option_set(int argc, char **argv)
short vid_end = -1;
char *d = NULL;
short vid = -1;
__u32 val32;
__u8 val8;
afspec = addattr_nest(&req.n, sizeof(req),
@ -420,6 +422,13 @@ static int vlan_global_option_set(int argc, char **argv)
invarg("invalid mcast_mld_version", *argv);
addattr8(&req.n, 1024,
BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION, val8);
} else if (strcmp(*argv, "mcast_last_member_count") == 0) {
NEXT_ARG();
if (get_u32(&val32, *argv, 0))
invarg("invalid mcast_last_member_count", *argv);
addattr32(&req.n, 1024,
BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT,
val32);
} else {
if (strcmp(*argv, "help") == 0)
NEXT_ARG();
@ -768,6 +777,12 @@ static void print_vlan_global_opts(struct rtattr *a, int ifindex)
print_uint(PRINT_ANY, "mcast_mld_version",
"mcast_mld_version %u ", rta_getattr_u8(vattr));
}
if (vtb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]) {
vattr = vtb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT];
print_uint(PRINT_ANY, "mcast_last_member_count",
"mcast_last_member_count %u ",
rta_getattr_u32(vattr));
}
print_nl();
close_json_object();
}

10
man/man8/bridge.8
View File

@ -163,7 +163,9 @@ bridge \- show / manipulate bridge addresses and devices
.B mcast_igmp_version
.IR IGMP_VERSION " ] [ "
.B mcast_mld_version
.IR MLD_VERSION " ]"
.IR MLD_VERSION " ] [ "
.B mcast_last_member_count
.IR LAST_MEMBER_COUNT " ]"
.ti -8
.BR "bridge vlan global" " [ " show " ] [ "
@ -943,6 +945,12 @@ set the IGMP version. Default is 2.
.BI mcast_mld_version " MLD_VERSION "
set the MLD version. Default is 1.
.TP
.BI mcast_last_member_count " LAST_MEMBER_COUNT "
set multicast last member count, ie the number of queries the bridge
will send before stopping forwarding a multicast group after a "leave"
message has been received. Default is 2.
.SS bridge vlan global show - list global vlan options.
This command displays the global VLAN options for each VLAN entry.