summaryrefslogtreecommitdiffstats
path: root/src/vnet/interface_cli.c
diff options
context:
space:
mode:
authorOle Troan <ot@cisco.com>2018-06-07 10:17:57 +0200
committerDamjan Marion <dmarion@me.com>2018-06-11 10:25:59 +0000
commitd723161e038d00e59766aa67a6a0dcc350227e4b (patch)
tree24f5a1d87ebdc0012f28d42aa80a9f5d760073bf /src/vnet/interface_cli.c
parentf4fd0d4217ab6c41fe6b093871bd40ac130e6486 (diff)
MTU: Software interface / Per-protocol MTU support
This patch separates setting of hardware interfaec and software interface MTU. Software MTU is L2 payload MTU (i.e. not including L2 header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set. Currently only IP4, IP6 are enabled in adjacency / rewrite code. Documentation in src/vnet/MTU.md Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690 Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/interface_cli.c')
-rw-r--r--src/vnet/interface_cli.c50
1 files changed, 36 insertions, 14 deletions
diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c
index b803a31c05f..264c1f34e18 100644
--- a/src/vnet/interface_cli.c
+++ b/src/vnet/interface_cli.c
@@ -362,7 +362,7 @@ show_sw_interfaces (vlib_main_t * vm,
if (visible)
vec_add1 (sorted_sis, si[0]);}
));
- /* *INDENT-OFF* */
+ /* *INDENT-ON* */
/* Sort by name. */
vec_sort_with_function (sorted_sis, sw_interface_name_compare);
}
@@ -449,20 +449,19 @@ show_sw_interfaces (vlib_main_t * vm,
format_ip6_address, r6, ia->address_length);
}));
/* *INDENT-ON* */
+ }
+ }
+ else
+ {
+ vec_foreach (si, sorted_sis)
+ {
+ vlib_cli_output (vm, "%U\n", format_vnet_sw_interface, vnm, si);
+ }
}
-}
-
-else
-{
- vec_foreach (si, sorted_sis)
- {
- vlib_cli_output (vm, "%U\n", format_vnet_sw_interface, vnm, si);
- }
-}
done:
-vec_free (sorted_sis);
-return error;
+ vec_free (sorted_sis);
+ return error;
}
/* *INDENT-OFF* */
@@ -1115,12 +1114,17 @@ static clib_error_t *
mtu_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
{
vnet_main_t *vnm = vnet_get_main ();
- u32 hw_if_index, mtu;
+ u32 hw_if_index, sw_if_index, mtu;
ethernet_main_t *em = &ethernet_main;
+ u32 mtus[VNET_N_MTU] = { 0, 0, 0, 0 };
if (unformat (input, "%d %U", &mtu,
unformat_vnet_hw_interface, vnm, &hw_if_index))
{
+ /*
+ * Change physical MTU on interface. Only supported for Ethernet
+ * interfaces
+ */
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
ethernet_interface_t *eif = ethernet_get_interface (em, hw_if_index);
@@ -1137,17 +1141,35 @@ mtu_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
hi->max_supported_packet_bytes);
vnet_hw_interface_set_mtu (vnm, hw_if_index, mtu);
+ goto done;
}
+ else if (unformat (input, "packet %d %U", &mtu,
+ unformat_vnet_sw_interface, vnm, &sw_if_index))
+ /* Set default packet MTU (including L3 header */
+ mtus[VNET_MTU_L3] = mtu;
+ else if (unformat (input, "ip4 %d %U", &mtu,
+ unformat_vnet_sw_interface, vnm, &sw_if_index))
+ mtus[VNET_MTU_IP4] = mtu;
+ else if (unformat (input, "ip6 %d %U", &mtu,
+ unformat_vnet_sw_interface, vnm, &sw_if_index))
+ mtus[VNET_MTU_IP6] = mtu;
+ else if (unformat (input, "mpls %d %U", &mtu,
+ unformat_vnet_sw_interface, vnm, &sw_if_index))
+ mtus[VNET_MTU_MPLS] = mtu;
else
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
+
+ vnet_sw_interface_set_protocol_mtu (vnm, sw_if_index, mtus);
+
+done:
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_interface_mtu_cmd, static) = {
.path = "set interface mtu",
- .short_help = "set interface mtu <value> <interface>",
+ .short_help = "set interface mtu [packet|ip4|ip6|mpls] <value> <interface>",
.function = mtu_cmd,
};
/* *INDENT-ON* */