diff options
Diffstat (limited to 'net/core/rtnetlink.c')
| -rw-r--r-- | net/core/rtnetlink.c | 75 |
1 files changed, 58 insertions, 17 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index d09354514355..a66b6761b88b 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -5566,6 +5566,7 @@ rtnl_stats_get_policy[IFLA_STATS_GETSET_MAX + 1] = { static const struct nla_policy ifla_stats_set_policy[IFLA_STATS_GETSET_MAX + 1] = { + [IFLA_STATS_SET_OFFLOAD_XSTATS_L3_STATS] = NLA_POLICY_MAX(NLA_U8, 1), }; static int rtnl_stats_get_parse_filters(struct nlattr *ifla_filters, @@ -5773,16 +5774,51 @@ out: return skb->len; } +void rtnl_offload_xstats_notify(struct net_device *dev) +{ + struct rtnl_stats_dump_filters response_filters = {}; + struct net *net = dev_net(dev); + int idxattr = 0, prividx = 0; + struct sk_buff *skb; + int err = -ENOBUFS; + + ASSERT_RTNL(); + + response_filters.mask[0] |= + IFLA_STATS_FILTER_BIT(IFLA_STATS_LINK_OFFLOAD_XSTATS); + response_filters.mask[IFLA_STATS_LINK_OFFLOAD_XSTATS] |= + IFLA_STATS_FILTER_BIT(IFLA_OFFLOAD_XSTATS_HW_S_INFO); + + skb = nlmsg_new(if_nlmsg_stats_size(dev, &response_filters), + GFP_KERNEL); + if (!skb) + goto errout; + + err = rtnl_fill_statsinfo(skb, dev, RTM_NEWSTATS, 0, 0, 0, 0, + &response_filters, &idxattr, &prividx, NULL); + if (err < 0) { + kfree_skb(skb); + goto errout; + } + + rtnl_notify(skb, net, 0, RTNLGRP_STATS, NULL, GFP_KERNEL); + return; + +errout: + rtnl_set_sk_err(net, RTNLGRP_STATS, err); +} +EXPORT_SYMBOL(rtnl_offload_xstats_notify); + static int rtnl_stats_set(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { + enum netdev_offload_xstats_type t_l3 = NETDEV_OFFLOAD_XSTATS_TYPE_L3; struct rtnl_stats_dump_filters response_filters = {}; struct nlattr *tb[IFLA_STATS_GETSET_MAX + 1]; struct net *net = sock_net(skb->sk); struct net_device *dev = NULL; - int idxattr = 0, prividx = 0; struct if_stats_msg *ifsm; - struct sk_buff *nskb; + bool notify = false; int err; err = rtnl_valid_stats_req(nlh, netlink_strict_get_check(skb), @@ -5814,24 +5850,29 @@ static int rtnl_stats_set(struct sk_buff *skb, struct nlmsghdr *nlh, if (err < 0) return err; - nskb = nlmsg_new(if_nlmsg_stats_size(dev, &response_filters), - GFP_KERNEL); - if (!nskb) - return -ENOBUFS; + if (tb[IFLA_STATS_SET_OFFLOAD_XSTATS_L3_STATS]) { + u8 req = nla_get_u8(tb[IFLA_STATS_SET_OFFLOAD_XSTATS_L3_STATS]); - err = rtnl_fill_statsinfo(nskb, dev, RTM_NEWSTATS, - NETLINK_CB(skb).portid, nlh->nlmsg_seq, 0, - 0, &response_filters, &idxattr, &prividx, - extack); - if (err < 0) { - /* -EMSGSIZE implies BUG in if_nlmsg_stats_size */ - WARN_ON(err == -EMSGSIZE); - kfree_skb(nskb); - } else { - err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid); + if (req) + err = netdev_offload_xstats_enable(dev, t_l3, extack); + else + err = netdev_offload_xstats_disable(dev, t_l3); + + if (!err) + notify = true; + else if (err != -EALREADY) + return err; + + response_filters.mask[0] |= + IFLA_STATS_FILTER_BIT(IFLA_STATS_LINK_OFFLOAD_XSTATS); + response_filters.mask[IFLA_STATS_LINK_OFFLOAD_XSTATS] |= + IFLA_STATS_FILTER_BIT(IFLA_OFFLOAD_XSTATS_HW_S_INFO); } - return err; + if (notify) + rtnl_offload_xstats_notify(dev); + + return 0; } /* Process one rtnetlink message. */ |