diff options
Diffstat (limited to 'net/dcb')
| -rw-r--r-- | net/dcb/dcbnl.c | 159 |
1 files changed, 152 insertions, 7 deletions
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c index fc56e8546261..d5b45a201c1b 100644 --- a/net/dcb/dcbnl.c +++ b/net/dcb/dcbnl.c @@ -1642,6 +1642,60 @@ err: return ret; } +static int dcbnl_cee_pg_fill(struct sk_buff *skb, struct net_device *dev, + int dir) +{ + u8 pgid, up_map, prio, tc_pct; + const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; + int i = dir ? DCB_ATTR_CEE_TX_PG : DCB_ATTR_CEE_RX_PG; + struct nlattr *pg = nla_nest_start(skb, i); + + if (!pg) + goto nla_put_failure; + + for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { + struct nlattr *tc_nest = nla_nest_start(skb, i); + + if (!tc_nest) + goto nla_put_failure; + + pgid = DCB_ATTR_VALUE_UNDEFINED; + prio = DCB_ATTR_VALUE_UNDEFINED; + tc_pct = DCB_ATTR_VALUE_UNDEFINED; + up_map = DCB_ATTR_VALUE_UNDEFINED; + + if (!dir) + ops->getpgtccfgrx(dev, i - DCB_PG_ATTR_TC_0, + &prio, &pgid, &tc_pct, &up_map); + else + ops->getpgtccfgtx(dev, i - DCB_PG_ATTR_TC_0, + &prio, &pgid, &tc_pct, &up_map); + + NLA_PUT_U8(skb, DCB_TC_ATTR_PARAM_PGID, pgid); + NLA_PUT_U8(skb, DCB_TC_ATTR_PARAM_UP_MAPPING, up_map); + NLA_PUT_U8(skb, DCB_TC_ATTR_PARAM_STRICT_PRIO, prio); + NLA_PUT_U8(skb, DCB_TC_ATTR_PARAM_BW_PCT, tc_pct); + nla_nest_end(skb, tc_nest); + } + + for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { + tc_pct = DCB_ATTR_VALUE_UNDEFINED; + + if (!dir) + ops->getpgbwgcfgrx(dev, i - DCB_PG_ATTR_BW_ID_0, + &tc_pct); + else + ops->getpgbwgcfgtx(dev, i - DCB_PG_ATTR_BW_ID_0, + &tc_pct); + NLA_PUT_U8(skb, i, tc_pct); + } + nla_nest_end(skb, pg); + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + /* Handle CEE DCBX GET commands. */ static int dcbnl_cee_get(struct net_device *netdev, struct nlattr **tb, u32 pid, u32 seq, u16 flags) @@ -1649,9 +1703,11 @@ static int dcbnl_cee_get(struct net_device *netdev, struct nlattr **tb, struct sk_buff *skb; struct nlmsghdr *nlh; struct dcbmsg *dcb; - struct nlattr *cee; + struct nlattr *cee, *app; + struct dcb_app_type *itr; const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; - int err; + int dcbx, i, err = -EMSGSIZE; + u8 value; if (!ops) return -EOPNOTSUPP; @@ -1672,7 +1728,88 @@ static int dcbnl_cee_get(struct net_device *netdev, struct nlattr **tb, if (!cee) goto nla_put_failure; - /* get peer info if available */ + /* local pg */ + if (ops->getpgtccfgtx && ops->getpgbwgcfgtx) { + err = dcbnl_cee_pg_fill(skb, netdev, 1); + if (err) + goto nla_put_failure; + } + + if (ops->getpgtccfgrx && ops->getpgbwgcfgrx) { + err = dcbnl_cee_pg_fill(skb, netdev, 0); + if (err) + goto nla_put_failure; + } + + /* local pfc */ + if (ops->getpfccfg) { + struct nlattr *pfc_nest = nla_nest_start(skb, DCB_ATTR_CEE_PFC); + + if (!pfc_nest) + goto nla_put_failure; + + for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { + ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, &value); + NLA_PUT_U8(skb, i, value); + } + nla_nest_end(skb, pfc_nest); + } + + /* local app */ + spin_lock(&dcb_lock); + app = nla_nest_start(skb, DCB_ATTR_CEE_APP_TABLE); + if (!app) + goto nla_put_failure; + + list_for_each_entry(itr, &dcb_app_list, list) { + if (strncmp(itr->name, netdev->name, IFNAMSIZ) == 0) { + struct nlattr *app_nest = nla_nest_start(skb, + DCB_ATTR_APP); + if (!app_nest) + goto dcb_unlock; + + err = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, + itr->app.selector); + if (err) + goto dcb_unlock; + + err = nla_put_u16(skb, DCB_APP_ATTR_ID, + itr->app.protocol); + if (err) + goto dcb_unlock; + + err = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, + itr->app.priority); + if (err) + goto dcb_unlock; + + nla_nest_end(skb, app_nest); + } + } + nla_nest_end(skb, app); + + if (netdev->dcbnl_ops->getdcbx) + dcbx = netdev->dcbnl_ops->getdcbx(netdev); + else + dcbx = -EOPNOTSUPP; + + spin_unlock(&dcb_lock); + + /* features flags */ + if (ops->getfeatcfg) { + struct nlattr *feat = nla_nest_start(skb, DCB_ATTR_CEE_FEAT); + if (!feat) + goto nla_put_failure; + + for (i = DCB_FEATCFG_ATTR_ALL + 1; i <= DCB_FEATCFG_ATTR_MAX; + i++) + if (!ops->getfeatcfg(netdev, i, &value)) + NLA_PUT_U8(skb, i, value); + + nla_nest_end(skb, feat); + } + + /* peer info if available */ if (ops->cee_peer_getpg) { struct cee_pg pg; err = ops->cee_peer_getpg(netdev, &pg); @@ -1695,16 +1832,24 @@ static int dcbnl_cee_get(struct net_device *netdev, struct nlattr **tb, if (err) goto nla_put_failure; } - nla_nest_end(skb, cee); - nlmsg_end(skb, nlh); + /* DCBX state */ + if (dcbx >= 0) { + err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); + if (err) + goto nla_put_failure; + } + nlmsg_end(skb, nlh); return rtnl_unicast(skb, &init_net, pid); + +dcb_unlock: + spin_unlock(&dcb_lock); nla_put_failure: nlmsg_cancel(skb, nlh); nlmsg_failure: - kfree_skb(skb); - return -1; + nlmsg_free(skb); + return err; } static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) |