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| author | Shmulik Ravid <shmulikr@broadcom.com> | 2010-12-30 06:26:48 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-31 10:50:54 -0800 |
| commit | 6241b6259b16aa390ff4bf50f520685b3801200b (patch) | |
| tree | e80fbdd538b1edd1220b93103b66271194a0653d /net/dcb | |
| parent | 96b99684e365f28d49bdb1221ca022b75cb91a98 (diff) | |
| download | lwn-6241b6259b16aa390ff4bf50f520685b3801200b.tar.gz lwn-6241b6259b16aa390ff4bf50f520685b3801200b.zip | |
dcbnl: adding DCBX engine capability
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>
Diffstat (limited to 'net/dcb')
| -rw-r--r-- | net/dcb/dcbnl.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c index 69144125fc4f..8f83ad859d9b 100644 --- a/net/dcb/dcbnl.c +++ b/net/dcb/dcbnl.c @@ -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; } |