mlx4_en: Checksum counters per ring

commit ad04378cecca9c33b5ea3e46aa4ed71b15e0be0c
Author: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Date:   Tue Oct 18 01:50:56 2011 +0000

    mlx4_en: Checksum counters per ring

    Not updating common counters from data path.
    The checksum counters are per ring, summarizing them when collecting statistics.

    Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
    Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>

diff --git a/drivers/net/mlx4/en_port.c b/drivers/net/mlx4/en_port.c
index 9d275558094af436506c049dfd36bbb2d7ba1b0f..03c84cd78cdee36a8178d82ea40c6dab528ca522 100644 (file)
--- a/drivers/net/mlx4/en_port.c
+++ b/drivers/net/mlx4/en_port.c
@@ -214,15 +214,21 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 
        stats->rx_packets = 0;
        stats->rx_bytes = 0;
+       priv->port_stats.rx_chksum_good = 0;
+       priv->port_stats.rx_chksum_none = 0;
        for (i = 0; i < priv->rx_ring_num; i++) {
                stats->rx_packets += priv->rx_ring[i].packets;
                stats->rx_bytes += priv->rx_ring[i].bytes;
+               priv->port_stats.rx_chksum_good += priv->rx_ring[i].csum_ok;
+               priv->port_stats.rx_chksum_none += priv->rx_ring[i].csum_none;
        }
        stats->tx_packets = 0;
        stats->tx_bytes = 0;
+       priv->port_stats.tx_chksum_offload = 0;
        for (i = 0; i < priv->tx_ring_num; i++) {
                stats->tx_packets += priv->tx_ring[i].packets;
                stats->tx_bytes += priv->tx_ring[i].bytes;
+               priv->port_stats.tx_chksum_offload += priv->tx_ring[i].tx_csum;
        }
 
        stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +

diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index 7544c3617d863ed17e7c05ae45251727fb91928f..ff39b0f8abc0dd16e171aa0be161fc0b88f59db3 100644 (file)
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -587,7 +587,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
                if (likely(dev->features & NETIF_F_RXCSUM)) {
                        if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) &&
                            (cqe->checksum == cpu_to_be16(0xffff))) {
-                               priv->port_stats.rx_chksum_good++;
+                               ring->csum_ok++;
                                /* This packet is eligible for LRO if it is:
                                 * - DIX Ethernet (type interpretation)
                                 * - TCP/IP (v4)
@@ -627,11 +627,11 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
                                ip_summed = CHECKSUM_UNNECESSARY;
                        } else {
                                ip_summed = CHECKSUM_NONE;
-                               priv->port_stats.rx_chksum_none++;
+                               ring->csum_none++;
                        }
                } else {
                        ip_summed = CHECKSUM_NONE;
-                       priv->port_stats.rx_chksum_none++;
+                       ring->csum_none++;
                }
 
                skb = mlx4_en_rx_skb(priv, rx_desc, skb_frags,

diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index b229acf1855f89ba8323d6b896af5c159b74a6bf..315e63dbd9bd75b1d30dda7a6e2d02abbccbb99d 100644 (file)
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -696,7 +696,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
        if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
                tx_desc->ctrl.srcrb_flags |= cpu_to_be32(MLX4_WQE_CTRL_IP_CSUM |
                                                         MLX4_WQE_CTRL_TCP_UDP_CSUM);
-               priv->port_stats.tx_chksum_offload++;
+               ring->tx_csum++;
        }
 
        if (unlikely(priv->validate_loopback)) {

diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h
index 3b753f7b866a85ed166946fb0b8c58ce996b84e0..a6b5cf6193d2c320db3a053175ed0f1efbf674bc 100644 (file)
--- a/drivers/net/mlx4/mlx4_en.h
+++ b/drivers/net/mlx4/mlx4_en.h
@@ -249,6 +249,7 @@ struct mlx4_en_tx_ring {
        struct mlx4_srq dummy;
        unsigned long bytes;
        unsigned long packets;
+       unsigned long tx_csum;
        spinlock_t comp_lock;
        struct mlx4_bf bf;
        bool bf_enabled;
@@ -275,6 +276,8 @@ struct mlx4_en_rx_ring {
        void *rx_info;
        unsigned long bytes;
        unsigned long packets;
+       unsigned long csum_ok;
+       unsigned long csum_none;
 };