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 28fe4c6..5687a28 100644 (file)
--- 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 399bd54..cff297e 100644 (file)
--- 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 74c3160..ec111cf 100644 (file)
--- 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;