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Message-ID: <20231017070227.3560105-5-amcohen@nvidia.com>
Date: Tue, 17 Oct 2023 10:02:23 +0300
From: Amit Cohen <amcohen@...dia.com>
To: <netdev@...r.kernel.org>
CC: <dsahern@...il.com>, <stephen@...workplumber.org>, <razor@...ckwall.org>,
<mlxsw@...dia.com>, <roopa@...dia.com>, Amit Cohen <amcohen@...dia.com>
Subject: [PATCH iproute2-next 4/8] bridge: fdb: support match on destination VNI in flush command
Extend "fdb flush" command to match fdb entries with a specific destination
VNI.
Example:
$ bridge fdb flush dev vx10 vni 1000
This will flush all fdb entries pointing to vx10 with destination VNI 1000.
Signed-off-by: Amit Cohen <amcohen@...dia.com>
---
bridge/fdb.c | 11 ++++++++++-
man/man8/bridge.8 | 8 ++++++++
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/bridge/fdb.c b/bridge/fdb.c
index 6ae1011a..69f0d9e4 100644
--- a/bridge/fdb.c
+++ b/bridge/fdb.c
@@ -46,7 +46,7 @@ static void usage(void)
" bridge fdb get [ to ] LLADDR [ br BRDEV ] { brport | dev } DEV\n"
" [ vlan VID ] [ vni VNI ] [ self ] [ master ] [ dynamic ]\n"
" bridge fdb flush dev DEV [ brport DEV ] [ vlan VID ] [ src_vni VNI ]\n"
- " [ nhid NHID ] [ self ] [ master ]\n"
+ " [ nhid NHID ] [ vni VNI ] [ self ] [ master ]\n"
" [ [no]permanent | [no]static | [no]dynamic ]\n"
" [ [no]added_by_user ] [ [no]extern_learn ] [ [no]sticky ]\n"
" [ [no]offloaded ]\n");
@@ -702,6 +702,7 @@ static int fdb_flush(int argc, char **argv)
unsigned short ndm_flags = 0;
unsigned short ndm_state = 0;
unsigned long src_vni = ~0;
+ unsigned long vni = ~0;
__u32 nhid = 0;
char *endptr;
@@ -775,6 +776,12 @@ static int fdb_flush(int argc, char **argv)
NEXT_ARG();
if (get_u32(&nhid, *argv, 0))
invarg("\"id\" value is invalid\n", *argv);
+ } else if (strcmp(*argv, "vni") == 0) {
+ NEXT_ARG();
+ vni = strtoul(*argv, &endptr, 0);
+ if ((endptr && *endptr) ||
+ (vni >> 24) || vni == ULONG_MAX)
+ invarg("invalid VNI\n", *argv);
} else if (strcmp(*argv, "help") == 0) {
NEXT_ARG();
} else {
@@ -825,6 +832,8 @@ static int fdb_flush(int argc, char **argv)
addattr32(&req.n, sizeof(req), NDA_SRC_VNI, src_vni);
if (nhid > 0)
addattr32(&req.n, sizeof(req), NDA_NH_ID, nhid);
+ if (vni != ~0)
+ addattr32(&req.n, sizeof(req), NDA_VNI, vni);
if (ndm_flags_mask)
addattr8(&req.n, sizeof(req), NDA_NDM_FLAGS_MASK,
ndm_flags_mask);
diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
index eaeee81b..b21d9b25 100644
--- a/man/man8/bridge.8
+++ b/man/man8/bridge.8
@@ -132,6 +132,8 @@ bridge \- show / manipulate bridge addresses and devices
.IR VNI " ] [ "
.B nhid
.IR NHID " ] ["
+.B vni
+.IR VNI " ] [ "
.BR self " ] [ " master " ] [ "
.BR [no]permanent " | " [no]static " | " [no]dynamic " ] [ "
.BR [no]added_by_user " ] [ " [no]extern_learn " ] [ "
@@ -907,6 +909,12 @@ device is a VXLAN type device.
the ecmp nexthop group for the operation. Match forwarding table entries only
with the specified NHID. Valid if the referenced device is a VXLAN type device.
+.TP
+.BI vni " VNI"
+the VXLAN VNI Network Identifier (or VXLAN Segment ID) for the operation. Match
+forwarding table entries only with the specified VNI. Valid if the referenced
+device is a VXLAN type device.
+
.TP
.B self
the operation is fulfilled directly by the driver for the specified network
--
2.41.0
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