![John Fastabend](/assets/img/avatar_default.png)
The incorrect ops routine was being tested for in DCB_ATTR_IEEE_PFC attributes. This patch corrects it. Currently, every driver implementing ieee_setets also implements ieee_setpfc so this bug is not actualized yet. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1690 lines
42 KiB
C
1690 lines
42 KiB
C
/*
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* Copyright (c) 2008, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Author: Lucy Liu <lucy.liu@intel.com>
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*/
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#include <linux/netdevice.h>
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#include <linux/netlink.h>
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#include <linux/slab.h>
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#include <net/netlink.h>
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#include <net/rtnetlink.h>
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#include <linux/dcbnl.h>
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#include <net/dcbevent.h>
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#include <linux/rtnetlink.h>
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#include <net/sock.h>
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/**
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* Data Center Bridging (DCB) is a collection of Ethernet enhancements
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* intended to allow network traffic with differing requirements
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* (highly reliable, no drops vs. best effort vs. low latency) to operate
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* and co-exist on Ethernet. Current DCB features are:
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*
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* Enhanced Transmission Selection (aka Priority Grouping [PG]) - provides a
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* framework for assigning bandwidth guarantees to traffic classes.
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*
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* Priority-based Flow Control (PFC) - provides a flow control mechanism which
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* can work independently for each 802.1p priority.
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*
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* Congestion Notification - provides a mechanism for end-to-end congestion
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* control for protocols which do not have built-in congestion management.
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*
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* More information about the emerging standards for these Ethernet features
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* can be found at: http://www.ieee802.org/1/pages/dcbridges.html
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*
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* This file implements an rtnetlink interface to allow configuration of DCB
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* features for capable devices.
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*/
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MODULE_AUTHOR("Lucy Liu, <lucy.liu@intel.com>");
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MODULE_DESCRIPTION("Data Center Bridging netlink interface");
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MODULE_LICENSE("GPL");
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/**************** DCB attribute policies *************************************/
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/* DCB netlink attributes policy */
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static const struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = {
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[DCB_ATTR_IFNAME] = {.type = NLA_NUL_STRING, .len = IFNAMSIZ - 1},
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[DCB_ATTR_STATE] = {.type = NLA_U8},
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[DCB_ATTR_PFC_CFG] = {.type = NLA_NESTED},
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[DCB_ATTR_PG_CFG] = {.type = NLA_NESTED},
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[DCB_ATTR_SET_ALL] = {.type = NLA_U8},
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[DCB_ATTR_PERM_HWADDR] = {.type = NLA_FLAG},
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[DCB_ATTR_CAP] = {.type = NLA_NESTED},
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[DCB_ATTR_PFC_STATE] = {.type = NLA_U8},
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[DCB_ATTR_BCN] = {.type = NLA_NESTED},
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[DCB_ATTR_APP] = {.type = NLA_NESTED},
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[DCB_ATTR_IEEE] = {.type = NLA_NESTED},
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[DCB_ATTR_DCBX] = {.type = NLA_U8},
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[DCB_ATTR_FEATCFG] = {.type = NLA_NESTED},
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};
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/* DCB priority flow control to User Priority nested attributes */
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static const struct nla_policy dcbnl_pfc_up_nest[DCB_PFC_UP_ATTR_MAX + 1] = {
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[DCB_PFC_UP_ATTR_0] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_1] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_2] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_3] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_4] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_5] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_6] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_7] = {.type = NLA_U8},
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[DCB_PFC_UP_ATTR_ALL] = {.type = NLA_FLAG},
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};
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/* DCB priority grouping nested attributes */
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static const struct nla_policy dcbnl_pg_nest[DCB_PG_ATTR_MAX + 1] = {
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[DCB_PG_ATTR_TC_0] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_1] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_2] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_3] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_4] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_5] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_6] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_7] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_TC_ALL] = {.type = NLA_NESTED},
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[DCB_PG_ATTR_BW_ID_0] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_1] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_2] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_3] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_4] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_5] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_6] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_7] = {.type = NLA_U8},
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[DCB_PG_ATTR_BW_ID_ALL] = {.type = NLA_FLAG},
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};
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/* DCB traffic class nested attributes. */
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static const struct nla_policy dcbnl_tc_param_nest[DCB_TC_ATTR_PARAM_MAX + 1] = {
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[DCB_TC_ATTR_PARAM_PGID] = {.type = NLA_U8},
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[DCB_TC_ATTR_PARAM_UP_MAPPING] = {.type = NLA_U8},
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[DCB_TC_ATTR_PARAM_STRICT_PRIO] = {.type = NLA_U8},
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[DCB_TC_ATTR_PARAM_BW_PCT] = {.type = NLA_U8},
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[DCB_TC_ATTR_PARAM_ALL] = {.type = NLA_FLAG},
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};
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/* DCB capabilities nested attributes. */
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static const struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = {
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[DCB_CAP_ATTR_ALL] = {.type = NLA_FLAG},
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[DCB_CAP_ATTR_PG] = {.type = NLA_U8},
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[DCB_CAP_ATTR_PFC] = {.type = NLA_U8},
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[DCB_CAP_ATTR_UP2TC] = {.type = NLA_U8},
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[DCB_CAP_ATTR_PG_TCS] = {.type = NLA_U8},
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[DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8},
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[DCB_CAP_ATTR_GSP] = {.type = NLA_U8},
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[DCB_CAP_ATTR_BCN] = {.type = NLA_U8},
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[DCB_CAP_ATTR_DCBX] = {.type = NLA_U8},
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};
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/* DCB capabilities nested attributes. */
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static const struct nla_policy dcbnl_numtcs_nest[DCB_NUMTCS_ATTR_MAX + 1] = {
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[DCB_NUMTCS_ATTR_ALL] = {.type = NLA_FLAG},
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[DCB_NUMTCS_ATTR_PG] = {.type = NLA_U8},
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[DCB_NUMTCS_ATTR_PFC] = {.type = NLA_U8},
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};
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/* DCB BCN nested attributes. */
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static const struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = {
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[DCB_BCN_ATTR_RP_0] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_1] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_2] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_3] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_4] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_5] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_6] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_7] = {.type = NLA_U8},
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[DCB_BCN_ATTR_RP_ALL] = {.type = NLA_FLAG},
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[DCB_BCN_ATTR_BCNA_0] = {.type = NLA_U32},
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[DCB_BCN_ATTR_BCNA_1] = {.type = NLA_U32},
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[DCB_BCN_ATTR_ALPHA] = {.type = NLA_U32},
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[DCB_BCN_ATTR_BETA] = {.type = NLA_U32},
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[DCB_BCN_ATTR_GD] = {.type = NLA_U32},
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[DCB_BCN_ATTR_GI] = {.type = NLA_U32},
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[DCB_BCN_ATTR_TMAX] = {.type = NLA_U32},
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[DCB_BCN_ATTR_TD] = {.type = NLA_U32},
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[DCB_BCN_ATTR_RMIN] = {.type = NLA_U32},
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[DCB_BCN_ATTR_W] = {.type = NLA_U32},
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[DCB_BCN_ATTR_RD] = {.type = NLA_U32},
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[DCB_BCN_ATTR_RU] = {.type = NLA_U32},
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[DCB_BCN_ATTR_WRTT] = {.type = NLA_U32},
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[DCB_BCN_ATTR_RI] = {.type = NLA_U32},
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[DCB_BCN_ATTR_C] = {.type = NLA_U32},
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[DCB_BCN_ATTR_ALL] = {.type = NLA_FLAG},
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};
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/* DCB APP nested attributes. */
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static const struct nla_policy dcbnl_app_nest[DCB_APP_ATTR_MAX + 1] = {
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[DCB_APP_ATTR_IDTYPE] = {.type = NLA_U8},
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[DCB_APP_ATTR_ID] = {.type = NLA_U16},
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[DCB_APP_ATTR_PRIORITY] = {.type = NLA_U8},
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};
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/* IEEE 802.1Qaz nested attributes. */
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static const struct nla_policy dcbnl_ieee_policy[DCB_ATTR_IEEE_MAX + 1] = {
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[DCB_ATTR_IEEE_ETS] = {.len = sizeof(struct ieee_ets)},
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[DCB_ATTR_IEEE_PFC] = {.len = sizeof(struct ieee_pfc)},
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[DCB_ATTR_IEEE_APP_TABLE] = {.type = NLA_NESTED},
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};
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static const struct nla_policy dcbnl_ieee_app[DCB_ATTR_IEEE_APP_MAX + 1] = {
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[DCB_ATTR_IEEE_APP] = {.len = sizeof(struct dcb_app)},
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};
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/* DCB number of traffic classes nested attributes. */
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static const struct nla_policy dcbnl_featcfg_nest[DCB_FEATCFG_ATTR_MAX + 1] = {
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[DCB_FEATCFG_ATTR_ALL] = {.type = NLA_FLAG},
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[DCB_FEATCFG_ATTR_PG] = {.type = NLA_U8},
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[DCB_FEATCFG_ATTR_PFC] = {.type = NLA_U8},
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[DCB_FEATCFG_ATTR_APP] = {.type = NLA_U8},
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};
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static LIST_HEAD(dcb_app_list);
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static DEFINE_SPINLOCK(dcb_lock);
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/* standard netlink reply call */
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static int dcbnl_reply(u8 value, u8 event, u8 cmd, u8 attr, u32 pid,
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u32 seq, u16 flags)
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{
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struct sk_buff *dcbnl_skb;
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struct dcbmsg *dcb;
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struct nlmsghdr *nlh;
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int ret = -EINVAL;
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dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!dcbnl_skb)
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return ret;
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nlh = NLMSG_NEW(dcbnl_skb, pid, seq, event, sizeof(*dcb), flags);
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dcb = NLMSG_DATA(nlh);
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dcb->dcb_family = AF_UNSPEC;
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dcb->cmd = cmd;
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dcb->dcb_pad = 0;
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ret = nla_put_u8(dcbnl_skb, attr, value);
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if (ret)
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goto err;
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/* end the message, assign the nlmsg_len. */
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nlmsg_end(dcbnl_skb, nlh);
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ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
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if (ret)
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return -EINVAL;
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return 0;
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nlmsg_failure:
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err:
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kfree_skb(dcbnl_skb);
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return ret;
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}
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static int dcbnl_getstate(struct net_device *netdev, struct nlattr **tb,
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u32 pid, u32 seq, u16 flags)
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{
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int ret = -EINVAL;
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/* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */
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if (!netdev->dcbnl_ops->getstate)
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return ret;
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ret = dcbnl_reply(netdev->dcbnl_ops->getstate(netdev), RTM_GETDCB,
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DCB_CMD_GSTATE, DCB_ATTR_STATE, pid, seq, flags);
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return ret;
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}
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static int dcbnl_getpfccfg(struct net_device *netdev, struct nlattr **tb,
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u32 pid, u32 seq, u16 flags)
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{
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struct sk_buff *dcbnl_skb;
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struct nlmsghdr *nlh;
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struct dcbmsg *dcb;
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struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1], *nest;
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u8 value;
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int ret = -EINVAL;
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int i;
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int getall = 0;
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if (!tb[DCB_ATTR_PFC_CFG] || !netdev->dcbnl_ops->getpfccfg)
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return ret;
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ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX,
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tb[DCB_ATTR_PFC_CFG],
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dcbnl_pfc_up_nest);
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if (ret)
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goto err_out;
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dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!dcbnl_skb)
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goto err_out;
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nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
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dcb = NLMSG_DATA(nlh);
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dcb->dcb_family = AF_UNSPEC;
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dcb->cmd = DCB_CMD_PFC_GCFG;
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nest = nla_nest_start(dcbnl_skb, DCB_ATTR_PFC_CFG);
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if (!nest)
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goto err;
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if (data[DCB_PFC_UP_ATTR_ALL])
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getall = 1;
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for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) {
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if (!getall && !data[i])
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continue;
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netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0,
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&value);
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ret = nla_put_u8(dcbnl_skb, i, value);
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if (ret) {
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nla_nest_cancel(dcbnl_skb, nest);
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goto err;
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}
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}
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nla_nest_end(dcbnl_skb, nest);
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nlmsg_end(dcbnl_skb, nlh);
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ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
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if (ret)
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goto err_out;
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return 0;
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nlmsg_failure:
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err:
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kfree_skb(dcbnl_skb);
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err_out:
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return -EINVAL;
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}
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static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlattr **tb,
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u32 pid, u32 seq, u16 flags)
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{
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struct sk_buff *dcbnl_skb;
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struct nlmsghdr *nlh;
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struct dcbmsg *dcb;
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u8 perm_addr[MAX_ADDR_LEN];
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int ret = -EINVAL;
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if (!netdev->dcbnl_ops->getpermhwaddr)
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return ret;
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dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!dcbnl_skb)
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goto err_out;
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nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
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dcb = NLMSG_DATA(nlh);
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dcb->dcb_family = AF_UNSPEC;
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dcb->cmd = DCB_CMD_GPERM_HWADDR;
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netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr);
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ret = nla_put(dcbnl_skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr),
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perm_addr);
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nlmsg_end(dcbnl_skb, nlh);
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ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
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if (ret)
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goto err_out;
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return 0;
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|
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nlmsg_failure:
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kfree_skb(dcbnl_skb);
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err_out:
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return -EINVAL;
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}
|
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|
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static int dcbnl_getcap(struct net_device *netdev, struct nlattr **tb,
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u32 pid, u32 seq, u16 flags)
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{
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struct sk_buff *dcbnl_skb;
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struct nlmsghdr *nlh;
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struct dcbmsg *dcb;
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struct nlattr *data[DCB_CAP_ATTR_MAX + 1], *nest;
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u8 value;
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int ret = -EINVAL;
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int i;
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int getall = 0;
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if (!tb[DCB_ATTR_CAP] || !netdev->dcbnl_ops->getcap)
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return ret;
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ret = nla_parse_nested(data, DCB_CAP_ATTR_MAX, tb[DCB_ATTR_CAP],
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dcbnl_cap_nest);
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if (ret)
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goto err_out;
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dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!dcbnl_skb)
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goto err_out;
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nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
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dcb = NLMSG_DATA(nlh);
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dcb->dcb_family = AF_UNSPEC;
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dcb->cmd = DCB_CMD_GCAP;
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nest = nla_nest_start(dcbnl_skb, DCB_ATTR_CAP);
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if (!nest)
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goto err;
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|
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if (data[DCB_CAP_ATTR_ALL])
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getall = 1;
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|
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for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) {
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if (!getall && !data[i])
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continue;
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|
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if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) {
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ret = nla_put_u8(dcbnl_skb, i, value);
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if (ret) {
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nla_nest_cancel(dcbnl_skb, nest);
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goto err;
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}
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|
}
|
|
}
|
|
nla_nest_end(dcbnl_skb, nest);
|
|
|
|
nlmsg_end(dcbnl_skb, nlh);
|
|
|
|
ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
return 0;
|
|
nlmsg_failure:
|
|
err:
|
|
kfree_skb(dcbnl_skb);
|
|
err_out:
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int dcbnl_getnumtcs(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct sk_buff *dcbnl_skb;
|
|
struct nlmsghdr *nlh;
|
|
struct dcbmsg *dcb;
|
|
struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1], *nest;
|
|
u8 value;
|
|
int ret = -EINVAL;
|
|
int i;
|
|
int getall = 0;
|
|
|
|
if (!tb[DCB_ATTR_NUMTCS] || !netdev->dcbnl_ops->getnumtcs)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS],
|
|
dcbnl_numtcs_nest);
|
|
if (ret) {
|
|
ret = -EINVAL;
|
|
goto err_out;
|
|
}
|
|
|
|
dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!dcbnl_skb) {
|
|
ret = -EINVAL;
|
|
goto err_out;
|
|
}
|
|
|
|
nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
|
|
|
|
dcb = NLMSG_DATA(nlh);
|
|
dcb->dcb_family = AF_UNSPEC;
|
|
dcb->cmd = DCB_CMD_GNUMTCS;
|
|
|
|
nest = nla_nest_start(dcbnl_skb, DCB_ATTR_NUMTCS);
|
|
if (!nest) {
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
if (data[DCB_NUMTCS_ATTR_ALL])
|
|
getall = 1;
|
|
|
|
for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) {
|
|
if (!getall && !data[i])
|
|
continue;
|
|
|
|
ret = netdev->dcbnl_ops->getnumtcs(netdev, i, &value);
|
|
if (!ret) {
|
|
ret = nla_put_u8(dcbnl_skb, i, value);
|
|
|
|
if (ret) {
|
|
nla_nest_cancel(dcbnl_skb, nest);
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
} else {
|
|
goto err;
|
|
}
|
|
}
|
|
nla_nest_end(dcbnl_skb, nest);
|
|
|
|
nlmsg_end(dcbnl_skb, nlh);
|
|
|
|
ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
|
|
if (ret) {
|
|
ret = -EINVAL;
|
|
goto err_out;
|
|
}
|
|
|
|
return 0;
|
|
nlmsg_failure:
|
|
err:
|
|
kfree_skb(dcbnl_skb);
|
|
err_out:
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setnumtcs(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1];
|
|
int ret = -EINVAL;
|
|
u8 value;
|
|
int i;
|
|
|
|
if (!tb[DCB_ATTR_NUMTCS] || !netdev->dcbnl_ops->setnumtcs)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS],
|
|
dcbnl_numtcs_nest);
|
|
|
|
if (ret) {
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) {
|
|
if (data[i] == NULL)
|
|
continue;
|
|
|
|
value = nla_get_u8(data[i]);
|
|
|
|
ret = netdev->dcbnl_ops->setnumtcs(netdev, i, value);
|
|
|
|
if (ret)
|
|
goto operr;
|
|
}
|
|
|
|
operr:
|
|
ret = dcbnl_reply(!!ret, RTM_SETDCB, DCB_CMD_SNUMTCS,
|
|
DCB_ATTR_NUMTCS, pid, seq, flags);
|
|
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_getpfcstate(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
if (!netdev->dcbnl_ops->getpfcstate)
|
|
return ret;
|
|
|
|
ret = dcbnl_reply(netdev->dcbnl_ops->getpfcstate(netdev), RTM_GETDCB,
|
|
DCB_CMD_PFC_GSTATE, DCB_ATTR_PFC_STATE,
|
|
pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setpfcstate(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int ret = -EINVAL;
|
|
u8 value;
|
|
|
|
if (!tb[DCB_ATTR_PFC_STATE] || !netdev->dcbnl_ops->setpfcstate)
|
|
return ret;
|
|
|
|
value = nla_get_u8(tb[DCB_ATTR_PFC_STATE]);
|
|
|
|
netdev->dcbnl_ops->setpfcstate(netdev, value);
|
|
|
|
ret = dcbnl_reply(0, RTM_SETDCB, DCB_CMD_PFC_SSTATE, DCB_ATTR_PFC_STATE,
|
|
pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_getapp(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct sk_buff *dcbnl_skb;
|
|
struct nlmsghdr *nlh;
|
|
struct dcbmsg *dcb;
|
|
struct nlattr *app_nest;
|
|
struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1];
|
|
u16 id;
|
|
u8 up, idtype;
|
|
int ret = -EINVAL;
|
|
|
|
if (!tb[DCB_ATTR_APP])
|
|
goto out;
|
|
|
|
ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP],
|
|
dcbnl_app_nest);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = -EINVAL;
|
|
/* all must be non-null */
|
|
if ((!app_tb[DCB_APP_ATTR_IDTYPE]) ||
|
|
(!app_tb[DCB_APP_ATTR_ID]))
|
|
goto out;
|
|
|
|
/* either by eth type or by socket number */
|
|
idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]);
|
|
if ((idtype != DCB_APP_IDTYPE_ETHTYPE) &&
|
|
(idtype != DCB_APP_IDTYPE_PORTNUM))
|
|
goto out;
|
|
|
|
id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]);
|
|
|
|
if (netdev->dcbnl_ops->getapp) {
|
|
up = netdev->dcbnl_ops->getapp(netdev, idtype, id);
|
|
} else {
|
|
struct dcb_app app = {
|
|
.selector = idtype,
|
|
.protocol = id,
|
|
};
|
|
up = dcb_getapp(netdev, &app);
|
|
}
|
|
|
|
/* send this back */
|
|
dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!dcbnl_skb)
|
|
goto out;
|
|
|
|
nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
|
|
dcb = NLMSG_DATA(nlh);
|
|
dcb->dcb_family = AF_UNSPEC;
|
|
dcb->cmd = DCB_CMD_GAPP;
|
|
|
|
app_nest = nla_nest_start(dcbnl_skb, DCB_ATTR_APP);
|
|
if (!app_nest)
|
|
goto out_cancel;
|
|
|
|
ret = nla_put_u8(dcbnl_skb, DCB_APP_ATTR_IDTYPE, idtype);
|
|
if (ret)
|
|
goto out_cancel;
|
|
|
|
ret = nla_put_u16(dcbnl_skb, DCB_APP_ATTR_ID, id);
|
|
if (ret)
|
|
goto out_cancel;
|
|
|
|
ret = nla_put_u8(dcbnl_skb, DCB_APP_ATTR_PRIORITY, up);
|
|
if (ret)
|
|
goto out_cancel;
|
|
|
|
nla_nest_end(dcbnl_skb, app_nest);
|
|
nlmsg_end(dcbnl_skb, nlh);
|
|
|
|
ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
|
|
if (ret)
|
|
goto nlmsg_failure;
|
|
|
|
goto out;
|
|
|
|
out_cancel:
|
|
nla_nest_cancel(dcbnl_skb, app_nest);
|
|
nlmsg_failure:
|
|
kfree_skb(dcbnl_skb);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setapp(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int err, ret = -EINVAL;
|
|
u16 id;
|
|
u8 up, idtype;
|
|
struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1];
|
|
|
|
if (!tb[DCB_ATTR_APP])
|
|
goto out;
|
|
|
|
ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP],
|
|
dcbnl_app_nest);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = -EINVAL;
|
|
/* all must be non-null */
|
|
if ((!app_tb[DCB_APP_ATTR_IDTYPE]) ||
|
|
(!app_tb[DCB_APP_ATTR_ID]) ||
|
|
(!app_tb[DCB_APP_ATTR_PRIORITY]))
|
|
goto out;
|
|
|
|
/* either by eth type or by socket number */
|
|
idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]);
|
|
if ((idtype != DCB_APP_IDTYPE_ETHTYPE) &&
|
|
(idtype != DCB_APP_IDTYPE_PORTNUM))
|
|
goto out;
|
|
|
|
id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]);
|
|
up = nla_get_u8(app_tb[DCB_APP_ATTR_PRIORITY]);
|
|
|
|
if (netdev->dcbnl_ops->setapp) {
|
|
err = netdev->dcbnl_ops->setapp(netdev, idtype, id, up);
|
|
} else {
|
|
struct dcb_app app;
|
|
app.selector = idtype;
|
|
app.protocol = id;
|
|
app.priority = up;
|
|
err = dcb_setapp(netdev, &app);
|
|
}
|
|
|
|
ret = dcbnl_reply(err, RTM_SETDCB, DCB_CMD_SAPP, DCB_ATTR_APP,
|
|
pid, seq, flags);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static int __dcbnl_pg_getcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags, int dir)
|
|
{
|
|
struct sk_buff *dcbnl_skb;
|
|
struct nlmsghdr *nlh;
|
|
struct dcbmsg *dcb;
|
|
struct nlattr *pg_nest, *param_nest, *data;
|
|
struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1];
|
|
struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1];
|
|
u8 prio, pgid, tc_pct, up_map;
|
|
int ret = -EINVAL;
|
|
int getall = 0;
|
|
int i;
|
|
|
|
if (!tb[DCB_ATTR_PG_CFG] ||
|
|
!netdev->dcbnl_ops->getpgtccfgtx ||
|
|
!netdev->dcbnl_ops->getpgtccfgrx ||
|
|
!netdev->dcbnl_ops->getpgbwgcfgtx ||
|
|
!netdev->dcbnl_ops->getpgbwgcfgrx)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX,
|
|
tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest);
|
|
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!dcbnl_skb)
|
|
goto err_out;
|
|
|
|
nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
|
|
|
|
dcb = NLMSG_DATA(nlh);
|
|
dcb->dcb_family = AF_UNSPEC;
|
|
dcb->cmd = (dir) ? DCB_CMD_PGRX_GCFG : DCB_CMD_PGTX_GCFG;
|
|
|
|
pg_nest = nla_nest_start(dcbnl_skb, DCB_ATTR_PG_CFG);
|
|
if (!pg_nest)
|
|
goto err;
|
|
|
|
if (pg_tb[DCB_PG_ATTR_TC_ALL])
|
|
getall = 1;
|
|
|
|
for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) {
|
|
if (!getall && !pg_tb[i])
|
|
continue;
|
|
|
|
if (pg_tb[DCB_PG_ATTR_TC_ALL])
|
|
data = pg_tb[DCB_PG_ATTR_TC_ALL];
|
|
else
|
|
data = pg_tb[i];
|
|
ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX,
|
|
data, dcbnl_tc_param_nest);
|
|
if (ret)
|
|
goto err_pg;
|
|
|
|
param_nest = nla_nest_start(dcbnl_skb, i);
|
|
if (!param_nest)
|
|
goto err_pg;
|
|
|
|
pgid = DCB_ATTR_VALUE_UNDEFINED;
|
|
prio = DCB_ATTR_VALUE_UNDEFINED;
|
|
tc_pct = DCB_ATTR_VALUE_UNDEFINED;
|
|
up_map = DCB_ATTR_VALUE_UNDEFINED;
|
|
|
|
if (dir) {
|
|
/* Rx */
|
|
netdev->dcbnl_ops->getpgtccfgrx(netdev,
|
|
i - DCB_PG_ATTR_TC_0, &prio,
|
|
&pgid, &tc_pct, &up_map);
|
|
} else {
|
|
/* Tx */
|
|
netdev->dcbnl_ops->getpgtccfgtx(netdev,
|
|
i - DCB_PG_ATTR_TC_0, &prio,
|
|
&pgid, &tc_pct, &up_map);
|
|
}
|
|
|
|
if (param_tb[DCB_TC_ATTR_PARAM_PGID] ||
|
|
param_tb[DCB_TC_ATTR_PARAM_ALL]) {
|
|
ret = nla_put_u8(dcbnl_skb,
|
|
DCB_TC_ATTR_PARAM_PGID, pgid);
|
|
if (ret)
|
|
goto err_param;
|
|
}
|
|
if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING] ||
|
|
param_tb[DCB_TC_ATTR_PARAM_ALL]) {
|
|
ret = nla_put_u8(dcbnl_skb,
|
|
DCB_TC_ATTR_PARAM_UP_MAPPING, up_map);
|
|
if (ret)
|
|
goto err_param;
|
|
}
|
|
if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO] ||
|
|
param_tb[DCB_TC_ATTR_PARAM_ALL]) {
|
|
ret = nla_put_u8(dcbnl_skb,
|
|
DCB_TC_ATTR_PARAM_STRICT_PRIO, prio);
|
|
if (ret)
|
|
goto err_param;
|
|
}
|
|
if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT] ||
|
|
param_tb[DCB_TC_ATTR_PARAM_ALL]) {
|
|
ret = nla_put_u8(dcbnl_skb, DCB_TC_ATTR_PARAM_BW_PCT,
|
|
tc_pct);
|
|
if (ret)
|
|
goto err_param;
|
|
}
|
|
nla_nest_end(dcbnl_skb, param_nest);
|
|
}
|
|
|
|
if (pg_tb[DCB_PG_ATTR_BW_ID_ALL])
|
|
getall = 1;
|
|
else
|
|
getall = 0;
|
|
|
|
for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) {
|
|
if (!getall && !pg_tb[i])
|
|
continue;
|
|
|
|
tc_pct = DCB_ATTR_VALUE_UNDEFINED;
|
|
|
|
if (dir) {
|
|
/* Rx */
|
|
netdev->dcbnl_ops->getpgbwgcfgrx(netdev,
|
|
i - DCB_PG_ATTR_BW_ID_0, &tc_pct);
|
|
} else {
|
|
/* Tx */
|
|
netdev->dcbnl_ops->getpgbwgcfgtx(netdev,
|
|
i - DCB_PG_ATTR_BW_ID_0, &tc_pct);
|
|
}
|
|
ret = nla_put_u8(dcbnl_skb, i, tc_pct);
|
|
|
|
if (ret)
|
|
goto err_pg;
|
|
}
|
|
|
|
nla_nest_end(dcbnl_skb, pg_nest);
|
|
|
|
nlmsg_end(dcbnl_skb, nlh);
|
|
|
|
ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
return 0;
|
|
|
|
err_param:
|
|
nla_nest_cancel(dcbnl_skb, param_nest);
|
|
err_pg:
|
|
nla_nest_cancel(dcbnl_skb, pg_nest);
|
|
nlmsg_failure:
|
|
err:
|
|
kfree_skb(dcbnl_skb);
|
|
err_out:
|
|
ret = -EINVAL;
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_pgtx_getcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
return __dcbnl_pg_getcfg(netdev, tb, pid, seq, flags, 0);
|
|
}
|
|
|
|
static int dcbnl_pgrx_getcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
return __dcbnl_pg_getcfg(netdev, tb, pid, seq, flags, 1);
|
|
}
|
|
|
|
static int dcbnl_setstate(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int ret = -EINVAL;
|
|
u8 value;
|
|
|
|
if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->setstate)
|
|
return ret;
|
|
|
|
value = nla_get_u8(tb[DCB_ATTR_STATE]);
|
|
|
|
ret = dcbnl_reply(netdev->dcbnl_ops->setstate(netdev, value),
|
|
RTM_SETDCB, DCB_CMD_SSTATE, DCB_ATTR_STATE,
|
|
pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setpfccfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1];
|
|
int i;
|
|
int ret = -EINVAL;
|
|
u8 value;
|
|
|
|
if (!tb[DCB_ATTR_PFC_CFG] || !netdev->dcbnl_ops->setpfccfg)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX,
|
|
tb[DCB_ATTR_PFC_CFG],
|
|
dcbnl_pfc_up_nest);
|
|
if (ret)
|
|
goto err;
|
|
|
|
for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) {
|
|
if (data[i] == NULL)
|
|
continue;
|
|
value = nla_get_u8(data[i]);
|
|
netdev->dcbnl_ops->setpfccfg(netdev,
|
|
data[i]->nla_type - DCB_PFC_UP_ATTR_0, value);
|
|
}
|
|
|
|
ret = dcbnl_reply(0, RTM_SETDCB, DCB_CMD_PFC_SCFG, DCB_ATTR_PFC_CFG,
|
|
pid, seq, flags);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setall(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
if (!tb[DCB_ATTR_SET_ALL] || !netdev->dcbnl_ops->setall)
|
|
return ret;
|
|
|
|
ret = dcbnl_reply(netdev->dcbnl_ops->setall(netdev), RTM_SETDCB,
|
|
DCB_CMD_SET_ALL, DCB_ATTR_SET_ALL, pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __dcbnl_pg_setcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags, int dir)
|
|
{
|
|
struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1];
|
|
struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1];
|
|
int ret = -EINVAL;
|
|
int i;
|
|
u8 pgid;
|
|
u8 up_map;
|
|
u8 prio;
|
|
u8 tc_pct;
|
|
|
|
if (!tb[DCB_ATTR_PG_CFG] ||
|
|
!netdev->dcbnl_ops->setpgtccfgtx ||
|
|
!netdev->dcbnl_ops->setpgtccfgrx ||
|
|
!netdev->dcbnl_ops->setpgbwgcfgtx ||
|
|
!netdev->dcbnl_ops->setpgbwgcfgrx)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX,
|
|
tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest);
|
|
if (ret)
|
|
goto err;
|
|
|
|
for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) {
|
|
if (!pg_tb[i])
|
|
continue;
|
|
|
|
ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX,
|
|
pg_tb[i], dcbnl_tc_param_nest);
|
|
if (ret)
|
|
goto err;
|
|
|
|
pgid = DCB_ATTR_VALUE_UNDEFINED;
|
|
prio = DCB_ATTR_VALUE_UNDEFINED;
|
|
tc_pct = DCB_ATTR_VALUE_UNDEFINED;
|
|
up_map = DCB_ATTR_VALUE_UNDEFINED;
|
|
|
|
if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO])
|
|
prio =
|
|
nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]);
|
|
|
|
if (param_tb[DCB_TC_ATTR_PARAM_PGID])
|
|
pgid = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_PGID]);
|
|
|
|
if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT])
|
|
tc_pct = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_BW_PCT]);
|
|
|
|
if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING])
|
|
up_map =
|
|
nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]);
|
|
|
|
/* dir: Tx = 0, Rx = 1 */
|
|
if (dir) {
|
|
/* Rx */
|
|
netdev->dcbnl_ops->setpgtccfgrx(netdev,
|
|
i - DCB_PG_ATTR_TC_0,
|
|
prio, pgid, tc_pct, up_map);
|
|
} else {
|
|
/* Tx */
|
|
netdev->dcbnl_ops->setpgtccfgtx(netdev,
|
|
i - DCB_PG_ATTR_TC_0,
|
|
prio, pgid, tc_pct, up_map);
|
|
}
|
|
}
|
|
|
|
for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) {
|
|
if (!pg_tb[i])
|
|
continue;
|
|
|
|
tc_pct = nla_get_u8(pg_tb[i]);
|
|
|
|
/* dir: Tx = 0, Rx = 1 */
|
|
if (dir) {
|
|
/* Rx */
|
|
netdev->dcbnl_ops->setpgbwgcfgrx(netdev,
|
|
i - DCB_PG_ATTR_BW_ID_0, tc_pct);
|
|
} else {
|
|
/* Tx */
|
|
netdev->dcbnl_ops->setpgbwgcfgtx(netdev,
|
|
i - DCB_PG_ATTR_BW_ID_0, tc_pct);
|
|
}
|
|
}
|
|
|
|
ret = dcbnl_reply(0, RTM_SETDCB,
|
|
(dir ? DCB_CMD_PGRX_SCFG : DCB_CMD_PGTX_SCFG),
|
|
DCB_ATTR_PG_CFG, pid, seq, flags);
|
|
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_pgtx_setcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
return __dcbnl_pg_setcfg(netdev, tb, pid, seq, flags, 0);
|
|
}
|
|
|
|
static int dcbnl_pgrx_setcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
return __dcbnl_pg_setcfg(netdev, tb, pid, seq, flags, 1);
|
|
}
|
|
|
|
static int dcbnl_bcn_getcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct sk_buff *dcbnl_skb;
|
|
struct nlmsghdr *nlh;
|
|
struct dcbmsg *dcb;
|
|
struct nlattr *bcn_nest;
|
|
struct nlattr *bcn_tb[DCB_BCN_ATTR_MAX + 1];
|
|
u8 value_byte;
|
|
u32 value_integer;
|
|
int ret = -EINVAL;
|
|
bool getall = false;
|
|
int i;
|
|
|
|
if (!tb[DCB_ATTR_BCN] || !netdev->dcbnl_ops->getbcnrp ||
|
|
!netdev->dcbnl_ops->getbcncfg)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(bcn_tb, DCB_BCN_ATTR_MAX,
|
|
tb[DCB_ATTR_BCN], dcbnl_bcn_nest);
|
|
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!dcbnl_skb)
|
|
goto err_out;
|
|
|
|
nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
|
|
|
|
dcb = NLMSG_DATA(nlh);
|
|
dcb->dcb_family = AF_UNSPEC;
|
|
dcb->cmd = DCB_CMD_BCN_GCFG;
|
|
|
|
bcn_nest = nla_nest_start(dcbnl_skb, DCB_ATTR_BCN);
|
|
if (!bcn_nest)
|
|
goto err;
|
|
|
|
if (bcn_tb[DCB_BCN_ATTR_ALL])
|
|
getall = true;
|
|
|
|
for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) {
|
|
if (!getall && !bcn_tb[i])
|
|
continue;
|
|
|
|
netdev->dcbnl_ops->getbcnrp(netdev, i - DCB_BCN_ATTR_RP_0,
|
|
&value_byte);
|
|
ret = nla_put_u8(dcbnl_skb, i, value_byte);
|
|
if (ret)
|
|
goto err_bcn;
|
|
}
|
|
|
|
for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) {
|
|
if (!getall && !bcn_tb[i])
|
|
continue;
|
|
|
|
netdev->dcbnl_ops->getbcncfg(netdev, i,
|
|
&value_integer);
|
|
ret = nla_put_u32(dcbnl_skb, i, value_integer);
|
|
if (ret)
|
|
goto err_bcn;
|
|
}
|
|
|
|
nla_nest_end(dcbnl_skb, bcn_nest);
|
|
|
|
nlmsg_end(dcbnl_skb, nlh);
|
|
|
|
ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
return 0;
|
|
|
|
err_bcn:
|
|
nla_nest_cancel(dcbnl_skb, bcn_nest);
|
|
nlmsg_failure:
|
|
err:
|
|
kfree_skb(dcbnl_skb);
|
|
err_out:
|
|
ret = -EINVAL;
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct nlattr *data[DCB_BCN_ATTR_MAX + 1];
|
|
int i;
|
|
int ret = -EINVAL;
|
|
u8 value_byte;
|
|
u32 value_int;
|
|
|
|
if (!tb[DCB_ATTR_BCN] || !netdev->dcbnl_ops->setbcncfg ||
|
|
!netdev->dcbnl_ops->setbcnrp)
|
|
return ret;
|
|
|
|
ret = nla_parse_nested(data, DCB_BCN_ATTR_MAX,
|
|
tb[DCB_ATTR_BCN],
|
|
dcbnl_pfc_up_nest);
|
|
if (ret)
|
|
goto err;
|
|
|
|
for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) {
|
|
if (data[i] == NULL)
|
|
continue;
|
|
value_byte = nla_get_u8(data[i]);
|
|
netdev->dcbnl_ops->setbcnrp(netdev,
|
|
data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte);
|
|
}
|
|
|
|
for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) {
|
|
if (data[i] == NULL)
|
|
continue;
|
|
value_int = nla_get_u32(data[i]);
|
|
netdev->dcbnl_ops->setbcncfg(netdev,
|
|
i, value_int);
|
|
}
|
|
|
|
ret = dcbnl_reply(0, RTM_SETDCB, DCB_CMD_BCN_SCFG, DCB_ATTR_BCN,
|
|
pid, seq, flags);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
/* Handle IEEE 802.1Qaz SET commands. If any requested operation can not
|
|
* be completed the entire msg is aborted and error value is returned.
|
|
* No attempt is made to reconcile the case where only part of the
|
|
* cmd can be completed.
|
|
*/
|
|
static int dcbnl_ieee_set(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops;
|
|
struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1];
|
|
int err = -EOPNOTSUPP;
|
|
|
|
if (!ops)
|
|
goto err;
|
|
|
|
err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX,
|
|
tb[DCB_ATTR_IEEE], dcbnl_ieee_policy);
|
|
if (err)
|
|
goto err;
|
|
|
|
if (ieee[DCB_ATTR_IEEE_ETS] && ops->ieee_setets) {
|
|
struct ieee_ets *ets = nla_data(ieee[DCB_ATTR_IEEE_ETS]);
|
|
err = ops->ieee_setets(netdev, ets);
|
|
if (err)
|
|
goto err;
|
|
}
|
|
|
|
if (ieee[DCB_ATTR_IEEE_PFC] && ops->ieee_setpfc) {
|
|
struct ieee_pfc *pfc = nla_data(ieee[DCB_ATTR_IEEE_PFC]);
|
|
err = ops->ieee_setpfc(netdev, pfc);
|
|
if (err)
|
|
goto err;
|
|
}
|
|
|
|
if (ieee[DCB_ATTR_IEEE_APP_TABLE]) {
|
|
struct nlattr *attr;
|
|
int rem;
|
|
|
|
nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) {
|
|
struct dcb_app *app_data;
|
|
if (nla_type(attr) != DCB_ATTR_IEEE_APP)
|
|
continue;
|
|
app_data = nla_data(attr);
|
|
if (ops->ieee_setapp)
|
|
err = ops->ieee_setapp(netdev, app_data);
|
|
else
|
|
err = dcb_setapp(netdev, app_data);
|
|
if (err)
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
err:
|
|
dcbnl_reply(err, RTM_SETDCB, DCB_CMD_IEEE_SET, DCB_ATTR_IEEE,
|
|
pid, seq, flags);
|
|
return err;
|
|
}
|
|
|
|
|
|
/* Handle IEEE 802.1Qaz GET commands. */
|
|
static int dcbnl_ieee_get(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct nlmsghdr *nlh;
|
|
struct dcbmsg *dcb;
|
|
struct nlattr *ieee, *app;
|
|
struct dcb_app_type *itr;
|
|
const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops;
|
|
int err;
|
|
|
|
if (!ops)
|
|
return -EOPNOTSUPP;
|
|
|
|
skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!skb)
|
|
return -ENOBUFS;
|
|
|
|
nlh = NLMSG_NEW(skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
|
|
|
|
dcb = NLMSG_DATA(nlh);
|
|
dcb->dcb_family = AF_UNSPEC;
|
|
dcb->cmd = DCB_CMD_IEEE_GET;
|
|
|
|
NLA_PUT_STRING(skb, DCB_ATTR_IFNAME, netdev->name);
|
|
|
|
ieee = nla_nest_start(skb, DCB_ATTR_IEEE);
|
|
if (!ieee)
|
|
goto nla_put_failure;
|
|
|
|
if (ops->ieee_getets) {
|
|
struct ieee_ets ets;
|
|
err = ops->ieee_getets(netdev, &ets);
|
|
if (!err)
|
|
NLA_PUT(skb, DCB_ATTR_IEEE_ETS, sizeof(ets), &ets);
|
|
}
|
|
|
|
if (ops->ieee_getpfc) {
|
|
struct ieee_pfc pfc;
|
|
err = ops->ieee_getpfc(netdev, &pfc);
|
|
if (!err)
|
|
NLA_PUT(skb, DCB_ATTR_IEEE_PFC, sizeof(pfc), &pfc);
|
|
}
|
|
|
|
app = nla_nest_start(skb, DCB_ATTR_IEEE_APP_TABLE);
|
|
if (!app)
|
|
goto nla_put_failure;
|
|
|
|
spin_lock(&dcb_lock);
|
|
list_for_each_entry(itr, &dcb_app_list, list) {
|
|
if (strncmp(itr->name, netdev->name, IFNAMSIZ) == 0) {
|
|
err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app),
|
|
&itr->app);
|
|
if (err) {
|
|
spin_unlock(&dcb_lock);
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
}
|
|
spin_unlock(&dcb_lock);
|
|
nla_nest_end(skb, app);
|
|
|
|
nla_nest_end(skb, ieee);
|
|
nlmsg_end(skb, nlh);
|
|
|
|
return rtnl_unicast(skb, &init_net, pid);
|
|
nla_put_failure:
|
|
nlmsg_cancel(skb, nlh);
|
|
nlmsg_failure:
|
|
kfree_skb(skb);
|
|
return -1;
|
|
}
|
|
|
|
/* DCBX configuration */
|
|
static int dcbnl_getdcbx(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int ret;
|
|
|
|
if (!netdev->dcbnl_ops->getdcbx)
|
|
return -EOPNOTSUPP;
|
|
|
|
ret = dcbnl_reply(netdev->dcbnl_ops->getdcbx(netdev), RTM_GETDCB,
|
|
DCB_CMD_GDCBX, DCB_ATTR_DCBX, pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setdcbx(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
int ret;
|
|
u8 value;
|
|
|
|
if (!netdev->dcbnl_ops->setdcbx)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!tb[DCB_ATTR_DCBX])
|
|
return -EINVAL;
|
|
|
|
value = nla_get_u8(tb[DCB_ATTR_DCBX]);
|
|
|
|
ret = dcbnl_reply(netdev->dcbnl_ops->setdcbx(netdev, value),
|
|
RTM_SETDCB, DCB_CMD_SDCBX, DCB_ATTR_DCBX,
|
|
pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_getfeatcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct sk_buff *dcbnl_skb;
|
|
struct nlmsghdr *nlh;
|
|
struct dcbmsg *dcb;
|
|
struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1], *nest;
|
|
u8 value;
|
|
int ret, i;
|
|
int getall = 0;
|
|
|
|
if (!netdev->dcbnl_ops->getfeatcfg)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!tb[DCB_ATTR_FEATCFG])
|
|
return -EINVAL;
|
|
|
|
ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG],
|
|
dcbnl_featcfg_nest);
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!dcbnl_skb) {
|
|
ret = -ENOBUFS;
|
|
goto err_out;
|
|
}
|
|
|
|
nlh = NLMSG_NEW(dcbnl_skb, pid, seq, RTM_GETDCB, sizeof(*dcb), flags);
|
|
|
|
dcb = NLMSG_DATA(nlh);
|
|
dcb->dcb_family = AF_UNSPEC;
|
|
dcb->cmd = DCB_CMD_GFEATCFG;
|
|
|
|
nest = nla_nest_start(dcbnl_skb, DCB_ATTR_FEATCFG);
|
|
if (!nest) {
|
|
ret = -EMSGSIZE;
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (data[DCB_FEATCFG_ATTR_ALL])
|
|
getall = 1;
|
|
|
|
for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) {
|
|
if (!getall && !data[i])
|
|
continue;
|
|
|
|
ret = netdev->dcbnl_ops->getfeatcfg(netdev, i, &value);
|
|
if (!ret)
|
|
ret = nla_put_u8(dcbnl_skb, i, value);
|
|
|
|
if (ret) {
|
|
nla_nest_cancel(dcbnl_skb, nest);
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
nla_nest_end(dcbnl_skb, nest);
|
|
|
|
nlmsg_end(dcbnl_skb, nlh);
|
|
|
|
return rtnl_unicast(dcbnl_skb, &init_net, pid);
|
|
nla_put_failure:
|
|
nlmsg_cancel(dcbnl_skb, nlh);
|
|
nlmsg_failure:
|
|
kfree_skb(dcbnl_skb);
|
|
err_out:
|
|
return ret;
|
|
}
|
|
|
|
static int dcbnl_setfeatcfg(struct net_device *netdev, struct nlattr **tb,
|
|
u32 pid, u32 seq, u16 flags)
|
|
{
|
|
struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1];
|
|
int ret, i;
|
|
u8 value;
|
|
|
|
if (!netdev->dcbnl_ops->setfeatcfg)
|
|
return -ENOTSUPP;
|
|
|
|
if (!tb[DCB_ATTR_FEATCFG])
|
|
return -EINVAL;
|
|
|
|
ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG],
|
|
dcbnl_featcfg_nest);
|
|
|
|
if (ret)
|
|
goto err;
|
|
|
|
for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) {
|
|
if (data[i] == NULL)
|
|
continue;
|
|
|
|
value = nla_get_u8(data[i]);
|
|
|
|
ret = netdev->dcbnl_ops->setfeatcfg(netdev, i, value);
|
|
|
|
if (ret)
|
|
goto err;
|
|
}
|
|
err:
|
|
dcbnl_reply(ret, RTM_SETDCB, DCB_CMD_SFEATCFG, DCB_ATTR_FEATCFG,
|
|
pid, seq, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
|
|
{
|
|
struct net *net = sock_net(skb->sk);
|
|
struct net_device *netdev;
|
|
struct dcbmsg *dcb = (struct dcbmsg *)NLMSG_DATA(nlh);
|
|
struct nlattr *tb[DCB_ATTR_MAX + 1];
|
|
u32 pid = skb ? NETLINK_CB(skb).pid : 0;
|
|
int ret = -EINVAL;
|
|
|
|
if (!net_eq(net, &init_net))
|
|
return -EINVAL;
|
|
|
|
ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX,
|
|
dcbnl_rtnl_policy);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!tb[DCB_ATTR_IFNAME])
|
|
return -EINVAL;
|
|
|
|
netdev = dev_get_by_name(&init_net, nla_data(tb[DCB_ATTR_IFNAME]));
|
|
if (!netdev)
|
|
return -EINVAL;
|
|
|
|
if (!netdev->dcbnl_ops)
|
|
goto errout;
|
|
|
|
switch (dcb->cmd) {
|
|
case DCB_CMD_GSTATE:
|
|
ret = dcbnl_getstate(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PFC_GCFG:
|
|
ret = dcbnl_getpfccfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_GPERM_HWADDR:
|
|
ret = dcbnl_getperm_hwaddr(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PGTX_GCFG:
|
|
ret = dcbnl_pgtx_getcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PGRX_GCFG:
|
|
ret = dcbnl_pgrx_getcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_BCN_GCFG:
|
|
ret = dcbnl_bcn_getcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_SSTATE:
|
|
ret = dcbnl_setstate(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PFC_SCFG:
|
|
ret = dcbnl_setpfccfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
|
|
case DCB_CMD_SET_ALL:
|
|
ret = dcbnl_setall(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PGTX_SCFG:
|
|
ret = dcbnl_pgtx_setcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PGRX_SCFG:
|
|
ret = dcbnl_pgrx_setcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_GCAP:
|
|
ret = dcbnl_getcap(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_GNUMTCS:
|
|
ret = dcbnl_getnumtcs(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_SNUMTCS:
|
|
ret = dcbnl_setnumtcs(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PFC_GSTATE:
|
|
ret = dcbnl_getpfcstate(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_PFC_SSTATE:
|
|
ret = dcbnl_setpfcstate(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_BCN_SCFG:
|
|
ret = dcbnl_bcn_setcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_GAPP:
|
|
ret = dcbnl_getapp(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_SAPP:
|
|
ret = dcbnl_setapp(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_IEEE_SET:
|
|
ret = dcbnl_ieee_set(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_IEEE_GET:
|
|
ret = dcbnl_ieee_get(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_GDCBX:
|
|
ret = dcbnl_getdcbx(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_SDCBX:
|
|
ret = dcbnl_setdcbx(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_GFEATCFG:
|
|
ret = dcbnl_getfeatcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
case DCB_CMD_SFEATCFG:
|
|
ret = dcbnl_setfeatcfg(netdev, tb, pid, nlh->nlmsg_seq,
|
|
nlh->nlmsg_flags);
|
|
goto out;
|
|
default:
|
|
goto errout;
|
|
}
|
|
errout:
|
|
ret = -EINVAL;
|
|
out:
|
|
dev_put(netdev);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* dcb_getapp - retrieve the DCBX application user priority
|
|
*
|
|
* On success returns a non-zero 802.1p user priority bitmap
|
|
* otherwise returns 0 as the invalid user priority bitmap to
|
|
* indicate an error.
|
|
*/
|
|
u8 dcb_getapp(struct net_device *dev, struct dcb_app *app)
|
|
{
|
|
struct dcb_app_type *itr;
|
|
u8 prio = 0;
|
|
|
|
spin_lock(&dcb_lock);
|
|
list_for_each_entry(itr, &dcb_app_list, list) {
|
|
if (itr->app.selector == app->selector &&
|
|
itr->app.protocol == app->protocol &&
|
|
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
|
|
prio = itr->app.priority;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock(&dcb_lock);
|
|
|
|
return prio;
|
|
}
|
|
EXPORT_SYMBOL(dcb_getapp);
|
|
|
|
/**
|
|
* ixgbe_dcbnl_setapp - add dcb application data to app list
|
|
*
|
|
* Priority 0 is the default priority this removes applications
|
|
* from the app list if the priority is set to zero.
|
|
*/
|
|
u8 dcb_setapp(struct net_device *dev, struct dcb_app *new)
|
|
{
|
|
struct dcb_app_type *itr;
|
|
struct dcb_app_type event;
|
|
|
|
memcpy(&event.name, dev->name, sizeof(event.name));
|
|
memcpy(&event.app, new, sizeof(event.app));
|
|
|
|
spin_lock(&dcb_lock);
|
|
/* Search for existing match and replace */
|
|
list_for_each_entry(itr, &dcb_app_list, list) {
|
|
if (itr->app.selector == new->selector &&
|
|
itr->app.protocol == new->protocol &&
|
|
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
|
|
if (new->priority)
|
|
itr->app.priority = new->priority;
|
|
else {
|
|
list_del(&itr->list);
|
|
kfree(itr);
|
|
}
|
|
goto out;
|
|
}
|
|
}
|
|
/* App type does not exist add new application type */
|
|
if (new->priority) {
|
|
struct dcb_app_type *entry;
|
|
entry = kmalloc(sizeof(struct dcb_app_type), GFP_ATOMIC);
|
|
if (!entry) {
|
|
spin_unlock(&dcb_lock);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(&entry->app, new, sizeof(*new));
|
|
strncpy(entry->name, dev->name, IFNAMSIZ);
|
|
list_add(&entry->list, &dcb_app_list);
|
|
}
|
|
out:
|
|
spin_unlock(&dcb_lock);
|
|
call_dcbevent_notifiers(DCB_APP_EVENT, &event);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(dcb_setapp);
|
|
|
|
static void dcb_flushapp(void)
|
|
{
|
|
struct dcb_app_type *app;
|
|
struct dcb_app_type *tmp;
|
|
|
|
spin_lock(&dcb_lock);
|
|
list_for_each_entry_safe(app, tmp, &dcb_app_list, list) {
|
|
list_del(&app->list);
|
|
kfree(app);
|
|
}
|
|
spin_unlock(&dcb_lock);
|
|
}
|
|
|
|
static int __init dcbnl_init(void)
|
|
{
|
|
INIT_LIST_HEAD(&dcb_app_list);
|
|
|
|
rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL);
|
|
rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL);
|
|
|
|
return 0;
|
|
}
|
|
module_init(dcbnl_init);
|
|
|
|
static void __exit dcbnl_exit(void)
|
|
{
|
|
rtnl_unregister(PF_UNSPEC, RTM_GETDCB);
|
|
rtnl_unregister(PF_UNSPEC, RTM_SETDCB);
|
|
dcb_flushapp();
|
|
}
|
|
module_exit(dcbnl_exit);
|