diff options
Diffstat (limited to 'net/dcb')
-rw-r--r-- | net/dcb/dcbnl.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c index d5074a5..2e6dcf2 100644 --- a/net/dcb/dcbnl.c +++ b/net/dcb/dcbnl.c @@ -1224,6 +1224,54 @@ err: return err; } +static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb) +{ + struct dcb_peer_app_info info; + struct dcb_app *table = NULL; + const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; + u16 app_count; + int err; + + + /** + * retrieve the peer app configuration form the driver. If the driver + * handlers fail exit without doing anything + */ + err = ops->peer_getappinfo(netdev, &info, &app_count); + if (!err && app_count) { + table = kmalloc(sizeof(struct dcb_app) * app_count, GFP_KERNEL); + if (!table) + return -ENOMEM; + + err = ops->peer_getapptable(netdev, table); + } + + if (!err) { + u16 i; + struct nlattr *app; + + /** + * build the message, from here on the only possible failure + * is due to the skb size + */ + err = -EMSGSIZE; + + app = nla_nest_start(skb, DCB_ATTR_IEEE_PEER_APP); + if (!app) + goto nla_put_failure; + + for (i = 0; i < app_count; i++) + NLA_PUT(skb, DCB_ATTR_IEEE_APP, sizeof(struct dcb_app), + &table[i]); + + nla_nest_end(skb, app); + } + err = 0; + +nla_put_failure: + kfree(table); + return err; +} /* Handle IEEE 802.1Qaz GET commands. */ static int dcbnl_ieee_get(struct net_device *netdev, struct nlattr **tb, @@ -1288,6 +1336,27 @@ static int dcbnl_ieee_get(struct net_device *netdev, struct nlattr **tb, spin_unlock(&dcb_lock); nla_nest_end(skb, app); + /* get peer info if available */ + if (ops->ieee_peer_getets) { + struct ieee_ets ets; + err = ops->ieee_peer_getets(netdev, &ets); + if (!err) + NLA_PUT(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets); + } + + if (ops->ieee_peer_getpfc) { + struct ieee_pfc pfc; + err = ops->ieee_peer_getpfc(netdev, &pfc); + if (!err) + NLA_PUT(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc); + } + + if (ops->peer_getappinfo && ops->peer_getapptable) { + err = dcbnl_build_peer_app(netdev, skb); + if (err) + goto nla_put_failure; + } + nla_nest_end(skb, ieee); nlmsg_end(skb, nlh); |