From 70083ee74c3141bbefb185525315f1b34497dcaa Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Tue, 27 Mar 2018 14:48:39 +0200 Subject: MTU: Setting of MTU on software interface (instead of hardware interface) Change-Id: I98bd454a761a1032738a21edeb0fe847e801f901 Signed-off-by: Ole Troan --- src/vnet/interface_cli.c | 43 ++++++++++++++++++++----------------------- 1 file changed, 20 insertions(+), 23 deletions(-) (limited to 'src/vnet/interface_cli.c') diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c index d151335aa1f..fe17c823b36 100644 --- a/src/vnet/interface_cli.c +++ b/src/vnet/interface_cli.c @@ -1103,32 +1103,29 @@ 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; - ethernet_main_t *em = ðernet_main; + u32 sw_if_index, mtu; - if (unformat (input, "%d %U", &mtu, - unformat_vnet_hw_interface, vnm, &hw_if_index)) + if (unformat (input, "%d %U", &mtu, unformat_vnet_sw_interface, vnm, + &sw_if_index)) { - vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index); - ethernet_interface_t *eif = ethernet_get_interface (em, hw_if_index); - - if (!eif) - return clib_error_return (0, "not supported"); - - if (mtu < hi->min_supported_packet_bytes) - return clib_error_return (0, "Invalid mtu (%d): " - "must be >= min pkt bytes (%d)", mtu, - hi->min_supported_packet_bytes); - - if (mtu > hi->max_supported_packet_bytes) - return clib_error_return (0, "Invalid mtu (%d): must be <= (%d)", mtu, - hi->max_supported_packet_bytes); - - vnet_hw_interface_set_mtu (vnm, hw_if_index, mtu); + ; } else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); + { + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + } + + int rv = vnet_sw_interface_set_mtu (vnm, sw_if_index, mtu); + if (rv < 0) + { + vnet_hw_interface_t *hi = vnet_get_sw_hw_interface (vnm, sw_if_index); + ASSERT (hi); + return clib_error_return (0, "Invalid mtu (%d): " + "must be between min pkt bytes (%d) and max pkt bytes (%d)", + mtu, hi->min_packet_bytes, + hi->max_packet_bytes); + } return 0; } @@ -1406,7 +1403,7 @@ set_interface_rx_mode (vlib_main_t * vm, unformat_input_t * input, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (cmd_set_if_rx_mode,static) = { +VLIB_CLI_COMMAND (cmd_set_if_rx_mode, static) = { .path = "set interface rx-mode", .short_help = "set interface rx-mode [queue ] [polling | interrupt | adaptive]", .function = set_interface_rx_mode, -- cgit 1.2.3-korg