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authorSriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>2016-10-09 07:28:52 +0300
committerDavid S. Miller <davem@davemloft.net>2016-10-09 16:30:38 +0300
commitf3d6ad84807254954fc69bdebb6123e5a2883baf (patch)
tree8446d24ca2415e546c738b8d191cf033c9ffd7c9 /drivers
parent77b696cba961bb6e88aeba36253849443f9a4186 (diff)
downloadlinux-f3d6ad84807254954fc69bdebb6123e5a2883baf.tar.xz
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: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index dcb930a52613..cece8a08edca 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -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;