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Commit f3d6ad84 authored by Sriharsha Basavapatna's avatar Sriharsha Basavapatna Committed by David S. Miller
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be2net: Fix TX stats for TSO packets 



TX stats update does not take into account headers which get duplicated
when the TSO packet is split into segments by HW. Fix this for both
tunneled (vxlan) and non-tunneled TSO packets.

Signed-off-by: default avatarSriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 77b696cb

drivers/net/ethernet/emulex/benet/be_main.c

+12 −2
Original line number Diff line number Diff line
@@ -724,14 +724,24 @@ void be_link_status_update(struct be_adapter *adapter, u8 link_status) 
	netdev_info(netdev, "Link is %s\n", link_status ? "Up" : "Down");

}



static int be_gso_hdr_len(struct sk_buff *skb)

{

	if (skb->encapsulation)

		return skb_inner_transport_offset(skb) +

		       inner_tcp_hdrlen(skb);

	return skb_transport_offset(skb) + tcp_hdrlen(skb);

}



static void be_tx_stats_update(struct be_tx_obj *txo, struct sk_buff *skb)

{

	struct be_tx_stats *stats = tx_stats(txo);

	u64 tx_pkts = skb_shinfo(skb)->gso_segs ? : 1;

	u32 tx_pkts = skb_shinfo(skb)->gso_segs ? : 1;

	/* Account for headers which get duplicated in TSO pkt */

	u32 dup_hdr_len = tx_pkts > 1 ? be_gso_hdr_len(skb) * (tx_pkts - 1) : 0;



	u64_stats_update_begin(&stats->sync);

	stats->tx_reqs++;

	stats->tx_bytes += skb->len;

	stats->tx_bytes += skb->len + dup_hdr_len;

	stats->tx_pkts += tx_pkts;

	if (skb->encapsulation && skb->ip_summed == CHECKSUM_PARTIAL)

		stats->tx_vxlan_offload_pkts += tx_pkts;