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linux/net/dcb/dcbnl.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

1253 lines
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/*
* 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 <linux/slab.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 const 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_ATTR_APP] = {.type = NLA_NESTED},
};
/* DCB priority flow control to User Priority nested attributes */
static const 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 const 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 const 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 const 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 const 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 const 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},
};
/* DCB APP nested attributes. */
static const struct nla_policy dcbnl_app_nest[DCB_APP_ATTR_MAX + 1] = {
[DCB_APP_ATTR_IDTYPE] = {.type = NLA_U8},
[DCB_APP_ATTR_ID] = {.type = NLA_U16},
[DCB_APP_ATTR_PRIORITY] = {.type = NLA_U8},
};
/* 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)
return -EINVAL;
return 0;
nlmsg_failure:
err:
kfree_skb(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_out;
return 0;
nlmsg_failure:
err:
kfree_skb(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_out;
return 0;
nlmsg_failure:
kfree_skb(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_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] || !netdev->dcbnl_ops->getapp)
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]);
up = netdev->dcbnl_ops->getapp(netdev, idtype, id);
/* 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);
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 ret = -EINVAL;
u16 id;
u8 up, idtype;
struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1];
if (!tb[DCB_ATTR_APP] || !netdev->dcbnl_ops->setapp)
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]);
ret = dcbnl_reply(netdev->dcbnl_ops->setapp(netdev, idtype, id, up),
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;
}
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;
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);
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