From c5a9f6f0ab4054082dd5ce9bbdaa8e8ff05cf365 Mon Sep 17 00:00:00 2001 From: Eugenia Emantayev Date: Mon, 17 Jul 2017 13:47:07 +0300 Subject: [PATCH] net/core: Add drop counters to VF statistics Modern hardware can decide to drop packets going to/from a VF. Add receive and transmit drop counters to be displayed at hypervisor layer in iproute2 per VF statistics. Signed-off-by: Eugenia Emantayev Signed-off-by: Saeed Mahameed --- include/linux/if_link.h | 2 ++ include/uapi/linux/if_link.h | 2 ++ net/core/rtnetlink.c | 10 +++++++++- 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/include/linux/if_link.h b/include/linux/if_link.h index 4c54611e03e9..622658dfbf0a 100644 --- a/include/linux/if_link.h +++ b/include/linux/if_link.h @@ -13,6 +13,8 @@ struct ifla_vf_stats { __u64 tx_bytes; __u64 broadcast; __u64 multicast; + __u64 rx_dropped; + __u64 tx_dropped; }; struct ifla_vf_info { diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 19fc02660e0c..f8f04fed6186 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -732,6 +732,8 @@ enum { IFLA_VF_STATS_BROADCAST, IFLA_VF_STATS_MULTICAST, IFLA_VF_STATS_PAD, + IFLA_VF_STATS_RX_DROPPED, + IFLA_VF_STATS_TX_DROPPED, __IFLA_VF_STATS_MAX, }; diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index c688dc564b11..5421a3fd3ba1 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -904,6 +904,10 @@ static inline int rtnl_vfinfo_size(const struct net_device *dev, nla_total_size_64bit(sizeof(__u64)) + /* IFLA_VF_STATS_MULTICAST */ nla_total_size_64bit(sizeof(__u64)) + + /* IFLA_VF_STATS_RX_DROPPED */ + nla_total_size_64bit(sizeof(__u64)) + + /* IFLA_VF_STATS_TX_DROPPED */ + nla_total_size_64bit(sizeof(__u64)) + nla_total_size(sizeof(struct ifla_vf_trust))); return size; } else @@ -1258,7 +1262,11 @@ static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb, nla_put_u64_64bit(skb, IFLA_VF_STATS_BROADCAST, vf_stats.broadcast, IFLA_VF_STATS_PAD) || nla_put_u64_64bit(skb, IFLA_VF_STATS_MULTICAST, - vf_stats.multicast, IFLA_VF_STATS_PAD)) { + vf_stats.multicast, IFLA_VF_STATS_PAD) || + nla_put_u64_64bit(skb, IFLA_VF_STATS_RX_DROPPED, + vf_stats.rx_dropped, IFLA_VF_STATS_PAD) || + nla_put_u64_64bit(skb, IFLA_VF_STATS_TX_DROPPED, + vf_stats.tx_dropped, IFLA_VF_STATS_PAD)) { nla_nest_cancel(skb, vfstats); goto nla_put_vf_failure; } -- GitLab