Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
  net: Allow dependancies of FDDI & Tokenring to be modular.
  igb: Fix build warning when DCA is disabled.
  net: Fix warning fallout from recent NAPI interface changes.
  gro: Fix potential use after free
  sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
  sfc: When disabling the NIC, close the device rather than unregistering it
  sfc: SFT9001: Add cable diagnostics
  sfc: Add support for multiple PHY self-tests
  sfc: Merge top-level functions for self-tests
  sfc: Clean up PHY mode management in loopback self-test
  sfc: Fix unreliable link detection in some loopback modes
  sfc: Generate unique names for per-NIC workqueues
  802.3ad: use standard ethhdr instead of ad_header
  802.3ad: generalize out mac address initializer
  802.3ad: initialize ports LACPDU from const initializer
  802.3ad: remove typedef around ad_system
  802.3ad: turn ports is_individual into a bool
  802.3ad: turn ports is_enabled into a bool
  802.3ad: make ntt bool
  ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
  ...

Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).

1 files changed, 1122 insertions, 0 deletions

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
new file mode 100644
index 00000000000..5dbfe5fdc0d
--- /dev/null
+++ b/net/dcb/dcbnl.c
@@ -0,0 +1,1122 @@
+/*
+ * Copyright (c) 2008, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Author: Lucy Liu <lucy.liu@intel.com>
+ */
+
+#include <linux/netdevice.h>
+#include <linux/netlink.h>
+#include <net/netlink.h>
+#include <net/rtnetlink.h>
+#include <linux/dcbnl.h>
+#include <linux/rtnetlink.h>
+#include <net/sock.h>
+
+/**
+ * Data Center Bridging (DCB) is a collection of Ethernet enhancements
+ * intended to allow network traffic with differing requirements
+ * (highly reliable, no drops vs. best effort vs. low latency) to operate
+ * and co-exist on Ethernet.  Current DCB features are:
+ *
+ * Enhanced Transmission Selection (aka Priority Grouping [PG]) - provides a
+ *   framework for assigning bandwidth guarantees to traffic classes.
+ *
+ * Priority-based Flow Control (PFC) - provides a flow control mechanism which
+ *   can work independently for each 802.1p priority.
+ *
+ * Congestion Notification - provides a mechanism for end-to-end congestion
+ *   control for protocols which do not have built-in congestion management.
+ *
+ * More information about the emerging standards for these Ethernet features
+ * can be found at: http://www.ieee802.org/1/pages/dcbridges.html
+ *
+ * This file implements an rtnetlink interface to allow configuration of DCB
+ * features for capable devices.
+ */
+
+MODULE_AUTHOR("Lucy Liu, <lucy.liu@intel.com>");
+MODULE_DESCRIPTION("Data Center Bridging netlink interface");
+MODULE_LICENSE("GPL");
+
+/**************** DCB attribute policies *************************************/
+
+/* DCB netlink attributes policy */
+static struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = {
+	[DCB_ATTR_IFNAME]      = {.type = NLA_NUL_STRING, .len = IFNAMSIZ - 1},
+	[DCB_ATTR_STATE]       = {.type = NLA_U8},
+	[DCB_ATTR_PFC_CFG]     = {.type = NLA_NESTED},
+	[DCB_ATTR_PG_CFG]      = {.type = NLA_NESTED},
+	[DCB_ATTR_SET_ALL]     = {.type = NLA_U8},
+	[DCB_ATTR_PERM_HWADDR] = {.type = NLA_FLAG},
+	[DCB_ATTR_CAP]         = {.type = NLA_NESTED},
+	[DCB_ATTR_PFC_STATE]   = {.type = NLA_U8},
+	[DCB_ATTR_BCN]         = {.type = NLA_NESTED},
+};
+
+/* DCB priority flow control to User Priority nested attributes */
+static struct nla_policy dcbnl_pfc_up_nest[DCB_PFC_UP_ATTR_MAX + 1] = {
+	[DCB_PFC_UP_ATTR_0]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_1]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_2]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_3]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_4]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_5]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_6]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_7]   = {.type = NLA_U8},
+	[DCB_PFC_UP_ATTR_ALL] = {.type = NLA_FLAG},
+};
+
+/* DCB priority grouping nested attributes */
+static struct nla_policy dcbnl_pg_nest[DCB_PG_ATTR_MAX + 1] = {
+	[DCB_PG_ATTR_TC_0]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_1]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_2]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_3]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_4]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_5]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_6]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_7]      = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_TC_ALL]    = {.type = NLA_NESTED},
+	[DCB_PG_ATTR_BW_ID_0]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_1]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_2]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_3]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_4]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_5]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_6]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_7]   = {.type = NLA_U8},
+	[DCB_PG_ATTR_BW_ID_ALL] = {.type = NLA_FLAG},
+};
+
+/* DCB traffic class nested attributes. */
+static struct nla_policy dcbnl_tc_param_nest[DCB_TC_ATTR_PARAM_MAX + 1] = {
+	[DCB_TC_ATTR_PARAM_PGID]            = {.type = NLA_U8},
+	[DCB_TC_ATTR_PARAM_UP_MAPPING]      = {.type = NLA_U8},
+	[DCB_TC_ATTR_PARAM_STRICT_PRIO]     = {.type = NLA_U8},
+	[DCB_TC_ATTR_PARAM_BW_PCT]          = {.type = NLA_U8},
+	[DCB_TC_ATTR_PARAM_ALL]             = {.type = NLA_FLAG},
+};
+
+/* DCB capabilities nested attributes. */
+static struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = {
+	[DCB_CAP_ATTR_ALL]     = {.type = NLA_FLAG},
+	[DCB_CAP_ATTR_PG]      = {.type = NLA_U8},
+	[DCB_CAP_ATTR_PFC]     = {.type = NLA_U8},
+	[DCB_CAP_ATTR_UP2TC]   = {.type = NLA_U8},
+	[DCB_CAP_ATTR_PG_TCS]  = {.type = NLA_U8},
+	[DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8},
+	[DCB_CAP_ATTR_GSP]     = {.type = NLA_U8},
+	[DCB_CAP_ATTR_BCN]     = {.type = NLA_U8},
+};
+
+/* DCB capabilities nested attributes. */
+static struct nla_policy dcbnl_numtcs_nest[DCB_NUMTCS_ATTR_MAX + 1] = {
+	[DCB_NUMTCS_ATTR_ALL]     = {.type = NLA_FLAG},
+	[DCB_NUMTCS_ATTR_PG]      = {.type = NLA_U8},
+	[DCB_NUMTCS_ATTR_PFC]     = {.type = NLA_U8},
+};
+
+/* DCB BCN nested attributes. */
+static struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = {
+	[DCB_BCN_ATTR_RP_0]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_1]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_2]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_3]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_4]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_5]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_6]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_7]         = {.type = NLA_U8},
+	[DCB_BCN_ATTR_RP_ALL]       = {.type = NLA_FLAG},
+	[DCB_BCN_ATTR_BCNA_0]       = {.type = NLA_U32},
+	[DCB_BCN_ATTR_BCNA_1]       = {.type = NLA_U32},
+	[DCB_BCN_ATTR_ALPHA]        = {.type = NLA_U32},
+	[DCB_BCN_ATTR_BETA]         = {.type = NLA_U32},
+	[DCB_BCN_ATTR_GD]           = {.type = NLA_U32},
+	[DCB_BCN_ATTR_GI]           = {.type = NLA_U32},
+	[DCB_BCN_ATTR_TMAX]         = {.type = NLA_U32},
+	[DCB_BCN_ATTR_TD]           = {.type = NLA_U32},
+	[DCB_BCN_ATTR_RMIN]         = {.type = NLA_U32},
+	[DCB_BCN_ATTR_W]            = {.type = NLA_U32},
+	[DCB_BCN_ATTR_RD]           = {.type = NLA_U32},
+	[DCB_BCN_ATTR_RU]           = {.type = NLA_U32},
+	[DCB_BCN_ATTR_WRTT]         = {.type = NLA_U32},
+	[DCB_BCN_ATTR_RI]           = {.type = NLA_U32},
+	[DCB_BCN_ATTR_C]            = {.type = NLA_U32},
+	[DCB_BCN_ATTR_ALL]          = {.type = NLA_FLAG},
+};
+
+/* standard netlink reply call */
+static int dcbnl_reply(u8 value, u8 event, u8 cmd, u8 attr, u32 pid,
+                       u32 seq, u16 flags)
+{
+	struct sk_buff *dcbnl_skb;
+	struct dcbmsg *dcb;
+	struct nlmsghdr *nlh;
+	int ret = -EINVAL;
+
+	dcbnl_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!dcbnl_skb)
+		return ret;
+
+	nlh = NLMSG_NEW(dcbnl_skb, pid, seq, event, sizeof(*dcb), flags);
+
+	dcb = NLMSG_DATA(nlh);
+	dcb->dcb_family = AF_UNSPEC;
+	dcb->cmd = cmd;
+	dcb->dcb_pad = 0;
+
+	ret = nla_put_u8(dcbnl_skb, attr, value);
+	if (ret)
+		goto err;
+
+	/* end the message, assign the nlmsg_len. */
+	nlmsg_end(dcbnl_skb, nlh);
+	ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
+	if (ret)
+		goto err;
+
+	return 0;
+nlmsg_failure:
+err:
+	kfree(dcbnl_skb);
+	return ret;
+}
+
+static int dcbnl_getstate(struct net_device *netdev, struct nlattr **tb,
+                          u32 pid, u32 seq, u16 flags)
+{
+	int ret = -EINVAL;
+
+	/* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */
+	if (!netdev->dcbnl_ops->getstate)
+		return ret;
+
+	ret = dcbnl_reply(netdev->dcbnl_ops->getstate(netdev), RTM_GETDCB,
+	                  DCB_CMD_GSTATE, DCB_ATTR_STATE, pid, seq, flags);
+
+	return ret;
+}
+
+static int dcbnl_getpfccfg(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_PFC_UP_ATTR_MAX + 1], *nest;
+	u8 value;
+	int ret = -EINVAL;
+	int i;
+	int getall = 0;
+
+	if (!tb[DCB_ATTR_PFC_CFG] || !netdev->dcbnl_ops->getpfccfg)
+		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_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_PFC_GCFG;
+
+	nest = nla_nest_start(dcbnl_skb, DCB_ATTR_PFC_CFG);
+	if (!nest)
+		goto err;
+
+	if (data[DCB_PFC_UP_ATTR_ALL])
+		getall = 1;
+
+	for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) {
+		if (!getall && !data[i])
+			continue;
+
+		netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0,
+		                             &value);
+		ret = nla_put_u8(dcbnl_skb, i, value);
+
+		if (ret) {
+			nla_nest_cancel(dcbnl_skb, nest);
+			goto err;
+		}
+	}
+	nla_nest_end(dcbnl_skb, nest);
+
+	nlmsg_end(dcbnl_skb, nlh);
+
+	ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
+	if (ret)
+		goto err;
+
+	return 0;
+nlmsg_failure:
+err:
+	kfree(dcbnl_skb);
+err_out:
+	return -EINVAL;
+}
+
+static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlattr **tb,
+                                u32 pid, u32 seq, u16 flags)
+{
+	struct sk_buff *dcbnl_skb;
+	struct nlmsghdr *nlh;
+	struct dcbmsg *dcb;
+	u8 perm_addr[MAX_ADDR_LEN];
+	int ret = -EINVAL;
+
+	if (!netdev->dcbnl_ops->getpermhwaddr)
+		return ret;
+
+	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_GPERM_HWADDR;
+
+	netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr);
+
+	ret = nla_put(dcbnl_skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr),
+	              perm_addr);
+
+	nlmsg_end(dcbnl_skb, nlh);
+
+	ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
+	if (ret)
+		goto err;
+
+	return 0;
+
+nlmsg_failure:
+err:
+	kfree(dcbnl_skb);
+err_out:
+	return -EINVAL;
+}
+
+static int dcbnl_getcap(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_CAP_ATTR_MAX + 1], *nest;
+	u8 value;
+	int ret = -EINVAL;
+	int i;
+	int getall = 0;
+
+	if (!tb[DCB_ATTR_CAP] || !netdev->dcbnl_ops->getcap)
+		return ret;
+
+	ret = nla_parse_nested(data, DCB_CAP_ATTR_MAX, tb[DCB_ATTR_CAP],
+	                       dcbnl_cap_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_GCAP;
+
+	nest = nla_nest_start(dcbnl_skb, DCB_ATTR_CAP);
+	if (!nest)
+		goto err;
+
+	if (data[DCB_CAP_ATTR_ALL])
+		getall = 1;
+
+	for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) {
+		if (!getall && !data[i])
+			continue;
+
+		if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) {
+			ret = nla_put_u8(dcbnl_skb, i, value);
+
+			if (ret) {
+				nla_nest_cancel(dcbnl_skb, nest);
+				goto err;
+			}
+		}
+	}
+	nla_nest_end(dcbnl_skb, nest);
+
+	nlmsg_end(dcbnl_skb, nlh);
+
+	ret = rtnl_unicast(dcbnl_skb, &init_net, pid);
+	if (ret)
+		goto err;
+
+	return 0;
+nlmsg_failure:
+err:
+	kfree(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;
+	}
+
+	return 0;
+nlmsg_failure:
+err:
+	kfree(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_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;
+
+	return 0;
+
+err_param:
+	nla_nest_cancel(dcbnl_skb, param_nest);
+err_pg:
+	nla_nest_cancel(dcbnl_skb, pg_nest);
+nlmsg_failure:
+err:
+	kfree(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;
+
+	return 0;
+
+err_bcn:
+	nla_nest_cancel(dcbnl_skb, bcn_nest);
+nlmsg_failure:
+err:
+	kfree(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;
+}
+
+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 != &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;
+	default:
+		goto errout;
+	}
+errout:
+	ret = -EINVAL;
+out:
+	dev_put(netdev);
+	return ret;
+}
+
+static int __init dcbnl_init(void)
+{
+	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);
+}
+module_exit(dcbnl_exit);
+
+