mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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18fd3e45d8
Non-git-master versions of lldpad refuse to touch a device that doesn't have a carrier. And when enabling/disabling DCB, the kernel driver will reconfigure itself and may turn carrier off for a few seconds. So we must ensure that before enabling/disabling DCB, the carrier is already on. Next we must ensure that *after* enabling/disabling DCB, the carrier is back on before doing further DCB setup. There's a race condition between enabling/disabling DCB and receiving the carrier event in NetworkManager that has to be handled carefully. Because the carrier may not yet be down after the dcbtool call to enable/disable DCB returns, we need to wait for a couple seconds for the carrier to go down, and then again for it to come back up. Otherwise we might see the still-on carrier, proceed with DCB setup, and the carrier finally goes down halfway through the setup, which will fail the operations with "DCB not enabled, link down, or DCB not supported" errors from lldpad.
100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2013 Red Hat, Inc.
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*/
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#ifndef NM_DCB_H
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#define NM_DCB_H
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#include <glib.h>
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#include "nm-setting-dcb.h"
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/**
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* NMDcbError:
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* @NM_DCB_ERROR_UNKNOWN: unknown or unclassified error
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* @NM_DCB_ERROR_INTERNAL: a internal programmer error
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* @NM_DCB_ERROR_BAD_CONFIG: configuration was invalid
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* @NM_DCB_ERROR_HELPER_NOT_FOUND: the required helper program was not found
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* @NM_DCB_ERROR_HELPER_FAILED: the helper program failed
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*
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* NOTE: these errors are internal-use only and should never be used with D-Bus.
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**/
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typedef enum {
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NM_DCB_ERROR_UNKNOWN = 0,
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NM_DCB_ERROR_INTERNAL,
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NM_DCB_ERROR_BAD_CONFIG,
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NM_DCB_ERROR_HELPER_NOT_FOUND,
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NM_DCB_ERROR_HELPER_FAILED,
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} NMDcbError;
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#define NM_DCB_ERROR (nm_dcb_error_quark ())
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GQuark nm_dcb_error_quark (void);
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#define NM_TYPE_DCB_ERROR (nm_dcb_error_get_type ())
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GType nm_dcb_error_get_type (void);
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gboolean nm_dcb_enable (const char *iface, gboolean enable, GError **error);
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gboolean nm_dcb_setup (const char *iface, NMSettingDcb *s_dcb, GError **error);
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gboolean nm_dcb_cleanup (const char *iface, GError **error);
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/* For testcases only! */
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typedef gboolean (*DcbFunc) (char **argv,
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guint which,
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gpointer user_data,
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GError **error);
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#define DCBTOOL 0
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#define FCOEADM 1
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gboolean do_helper (const char *iface,
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guint which,
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DcbFunc run_func,
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gpointer user_data,
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GError **error,
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const char *fmt,
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...) G_GNUC_PRINTF(6, 7);
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gboolean _dcb_enable (const char *iface,
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gboolean enable,
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DcbFunc run_func,
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gpointer user_data,
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GError **error);
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gboolean _dcb_setup (const char *iface,
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NMSettingDcb *s_dcb,
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DcbFunc run_func,
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gpointer user_data,
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GError **error);
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gboolean _dcb_cleanup (const char *iface,
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DcbFunc run_func,
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gpointer user_data,
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GError **error);
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gboolean _fcoe_setup (const char *iface,
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NMSettingDcb *s_dcb,
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DcbFunc run_func,
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gpointer user_data,
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GError **error);
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gboolean _fcoe_cleanup (const char *iface,
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DcbFunc run_func,
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gpointer user_data,
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GError **error);
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#endif /* NM_DCB_H */
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