Commit c5a9f6f0 authored by Eugenia Emantayev's avatar Eugenia Emantayev Committed by Saeed Mahameed
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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: default avatarEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 43127824

include/linux/if_link.h

+2 −0
Original line number Diff line number Diff line
@@ -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 {

include/uapi/linux/if_link.h

+2 −0
Original line number Diff line number Diff line
@@ -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,

};

net/core/rtnetlink.c

+9 −1
Original line number Diff line number Diff line
@@ -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;

	}