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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2010-08-18 03:42:54 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-08-19 00:16:51 -0700 |
| commit | dd57f970f91e2371040db709b3731ac34e43ccdb (patch) | |
| tree | e51cbe0b96df2e5b7ce5881574c7c62112a75479 /drivers | |
| parent | atm: remove a net_device_stats clear (diff) | |
| download | linux-dev-dd57f970f91e2371040db709b3731ac34e43ccdb.tar.xz linux-dev-dd57f970f91e2371040db709b3731ac34e43ccdb.zip | |
vxge: Implement 64bit stats
vxge_get_stats() is racy, since it clears a block of memory (net_stats)
possibly still used by other cpus.
We can update this driver to full 64bit stats, since ndo_get_stats64()
provides a private block to store results, and driver maintains 64bit
counters already.
We also remove net_stats field from struct vxge_sw_stats
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/vxge/vxge-main.c | 22 | ||||
| -rw-r--r-- | drivers/net/vxge/vxge-main.h | 1 |
2 files changed, 7 insertions, 16 deletions
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c index f5334b287fdb..01cdec712b64 100644 --- a/drivers/net/vxge/vxge-main.c +++ b/drivers/net/vxge/vxge-main.c @@ -2914,26 +2914,18 @@ static int vxge_change_mtu(struct net_device *dev, int new_mtu) } /** - * vxge_get_stats + * vxge_get_stats64 * @dev: pointer to the device structure + * @stats: pointer to struct rtnl_link_stats64 * - * Updates the device statistics structure. This function updates the device - * statistics structure in the net_device structure and returns a pointer - * to the same. */ -static struct net_device_stats * -vxge_get_stats(struct net_device *dev) +static struct rtnl_link_stats64 * +vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats) { - struct vxgedev *vdev; - struct net_device_stats *net_stats; + struct vxgedev *vdev = netdev_priv(dev); int k; - vdev = netdev_priv(dev); - - net_stats = &vdev->stats.net_stats; - - memset(net_stats, 0, sizeof(struct net_device_stats)); - + /* net_stats already zeroed by caller */ for (k = 0; k < vdev->no_of_vpath; k++) { net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms; net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes; @@ -3102,7 +3094,7 @@ vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) static const struct net_device_ops vxge_netdev_ops = { .ndo_open = vxge_open, .ndo_stop = vxge_close, - .ndo_get_stats = vxge_get_stats, + .ndo_get_stats64 = vxge_get_stats64, .ndo_start_xmit = vxge_xmit, .ndo_validate_addr = eth_validate_addr, .ndo_set_multicast_list = vxge_set_multicast, diff --git a/drivers/net/vxge/vxge-main.h b/drivers/net/vxge/vxge-main.h index 2e3b064b8e4b..d4be07eaacd7 100644 --- a/drivers/net/vxge/vxge-main.h +++ b/drivers/net/vxge/vxge-main.h @@ -172,7 +172,6 @@ struct vxge_msix_entry { struct vxge_sw_stats { /* Network Stats (interface stats) */ - struct net_device_stats net_stats; /* Tx */ u64 tx_frms; |