xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dcbnl: adding DCBX engine capability

Browse Source 
Adding an optional DCBX capability and a pair for get-set routines for
setting the device DCBX mode. The DCBX capability is a bit field of
supported attributes. The user is expected to set the DCBX mode with a
subset of the advertised attributes.

This patch is dependent on the following patches:
[net-next-2.6 PATCH 1/3] dcbnl: add support for ieee8021Qaz attributes
[net-next-2.6 PATCH 2/3] dcbnl: add appliction tlv handlers
[net-next-2.6 PATCH 3/3] net_dcb: add application notifiers

Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shmulik Ravid
2010-12-30 06:26:48 +00:00
committed by David S. Miller
parent 96b99684e3
commit 6241b6259b
3 changed files with 91 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
net/dcb/dcbnl.c
View File

@@ -68,6 +68,7 @@ static const struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = {
[DCB_ATTR_BCN] = {.type = NLA_NESTED},
[DCB_ATTR_APP] = {.type = NLA_NESTED},
[DCB_ATTR_IEEE] = {.type = NLA_NESTED},
[DCB_ATTR_DCBX] = {.type = NLA_U8},
};
/* DCB priority flow control to User Priority nested attributes */
@@ -124,6 +125,7 @@ static const struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = {
[DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8},
[DCB_CAP_ATTR_GSP] = {.type = NLA_U8},
[DCB_CAP_ATTR_BCN] = {.type = NLA_U8},
[DCB_CAP_ATTR_DCBX] = {.type = NLA_U8},
};
/* DCB capabilities nested attributes. */
@@ -1271,6 +1273,39 @@ nlmsg_failure:
return -1;
}
/* DCBX configuration */
static int dcbnl_getdcbx(struct net_device *netdev, struct nlattr **tb,
u32 pid, u32 seq, u16 flags)
{
int ret = -EINVAL;
if (!netdev->dcbnl_ops->getdcbx)
return ret;
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 = -EINVAL;
u8 value;
if (!tb[DCB_ATTR_DCBX] || !netdev->dcbnl_ops->setdcbx)
return ret;
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 dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
struct net *net = sock_net(skb->sk);
@@ -1384,6 +1419,14 @@ static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
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;
default:
goto errout;
}