netdev - [PATCH 5/5] ibmveth: Add ethtool statistics for tx and rx large packets

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Date:	Tue, 14 Apr 2015 15:35:04 -0500
From:	Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
To:	netdev@...r.kernel.org
Cc:	linuxppc-dev@...ts.ozlabs.org,
	Brian King <brking@...ux.vnet.ibm.com>
Subject: [PATCH 5/5] ibmveth: Add ethtool statistics for tx and rx large packets

This patch includes counters for transmitted and received large
packets.

Cc: Brian King <brking@...ux.vnet.ibm.com>
Signed-off-by: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
---
 drivers/net/ethernet/ibm/ibmveth.c | 4 ++++
 drivers/net/ethernet/ibm/ibmveth.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 05eaca6a..39ab41e 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -100,6 +100,8 @@ struct ibmveth_stat ibmveth_stats[] = {
 	{ "tx_send_failed", IBMVETH_STAT_OFF(tx_send_failed) },
 	{ "fw_enabled_ipv4_csum", IBMVETH_STAT_OFF(fw_ipv4_csum_support) },
 	{ "fw_enabled_ipv6_csum", IBMVETH_STAT_OFF(fw_ipv6_csum_support) },
+	{ "tx_large_packets", IBMVETH_STAT_OFF(tx_large_packets) },
+	{ "rx_large_packets", IBMVETH_STAT_OFF(rx_large_packets) }
 };
 
 /* simple methods of getting data from the current rxq entry */
@@ -1045,6 +1047,7 @@ retry_bounce:
 		 */
 		ip_hdr(skb)->check = 0xffff;
 		tcp_hdr(skb)->check = cpu_to_be16(skb_shinfo(skb)->gso_size);
+		adapter->tx_large_packets++;
 	}
 
 	if (ibmveth_send(adapter, descs)) {
@@ -1147,6 +1150,7 @@ restart_poll:
 					 */
 					if (iph->check == 0xffff)
 						iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
+						adapter->rx_large_packets++;
 				}
 			}
 
diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h
index 0dc664b..41dedb1 100644
--- a/drivers/net/ethernet/ibm/ibmveth.h
+++ b/drivers/net/ethernet/ibm/ibmveth.h
@@ -161,6 +161,8 @@ struct ibmveth_adapter {
     u64 rx_no_buffer;
     u64 tx_map_failed;
     u64 tx_send_failed;
+    u64 tx_large_packets;
+    u64 rx_large_packets;
 };
 
 /*
-- 
1.8.3.1

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