[net-next 09/10] net/core: Add drop counters to VF statistics
From: Saeed Mahameed <hidden>
Date: 2018-01-09 06:44:54
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Eugenia Emantayev <redacted> 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 <redacted> Signed-off-by: Saeed Mahameed <redacted> --- 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; }
--
2.13.0