From: Sameeh Jubran <sameehj@amazon.com>
Date: Mon, 3 Jun 2019 14:43:28 +0000 (+0300)
Subject: net: ena: add good checksum counter
X-Git-Tag: tags/kvm-5.3-2~55^2~358^2~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d2eecc6ee8c92053797513e34931334dd0e85e18;p=users%2Fdwmw2%2Flinux.git

net: ena: add good checksum counter

Add a new statistics to ETHTOOL to specify if the device calculated
and validated the Rx csum.

Signed-off-by: Evgeny Shmeilin <evgeny@annapurnaLabs.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index 28fe4c6ef420f..5687a2860f018 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -88,13 +88,14 @@ static const struct ena_stats ena_stats_tx_strings[] = {
 static const struct ena_stats ena_stats_rx_strings[] = {
 	ENA_STAT_RX_ENTRY(cnt),
 	ENA_STAT_RX_ENTRY(bytes),
+	ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
+	ENA_STAT_RX_ENTRY(csum_good),
 	ENA_STAT_RX_ENTRY(refil_partial),
 	ENA_STAT_RX_ENTRY(bad_csum),
 	ENA_STAT_RX_ENTRY(page_alloc_fail),
 	ENA_STAT_RX_ENTRY(skb_alloc_fail),
 	ENA_STAT_RX_ENTRY(dma_mapping_err),
 	ENA_STAT_RX_ENTRY(bad_desc_num),
-	ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
 	ENA_STAT_RX_ENTRY(bad_req_id),
 	ENA_STAT_RX_ENTRY(empty_rx_ring),
 	ENA_STAT_RX_ENTRY(csum_unchecked),
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 399bd545345bc..cff297e1930ab 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1001,6 +1001,9 @@ static inline void ena_rx_checksum(struct ena_ring *rx_ring,
 
 		if (likely(ena_rx_ctx->l4_csum_checked)) {
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
+			u64_stats_update_begin(&rx_ring->syncp);
+			rx_ring->rx_stats.csum_good++;
+			u64_stats_update_end(&rx_ring->syncp);
 		} else {
 			u64_stats_update_begin(&rx_ring->syncp);
 			rx_ring->rx_stats.csum_unchecked++;
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h
index 74c316081499c..ec111cfc59b2b 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.h
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h
@@ -208,13 +208,14 @@ struct ena_stats_tx {
 struct ena_stats_rx {
 	u64 cnt;
 	u64 bytes;
+	u64 rx_copybreak_pkt;
+	u64 csum_good;
 	u64 refil_partial;
 	u64 bad_csum;
 	u64 page_alloc_fail;
 	u64 skb_alloc_fail;
 	u64 dma_mapping_err;
 	u64 bad_desc_num;
-	u64 rx_copybreak_pkt;
 	u64 bad_req_id;
 	u64 empty_rx_ring;
 	u64 csum_unchecked;