[PATCH net-next v2 07/10] forcedeth: account for dropped RX frames
From: David Decotigny <hidden>
Date: 2011-11-11 01:40:37
Also in:
lkml
Subsystem:
forcedeth gigabit ethernet driver, networking drivers, the rest · Maintainers:
Rain River, Zhu Yanjun, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This adds the stats counter for dropped RX frames. Signed-off-by: David Decotigny <redacted> --- drivers/net/ethernet/nvidia/forcedeth.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index cabc121..0a979b8 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c@@ -824,6 +824,7 @@ struct fe_priv { /* RX software stats */ struct nv_driver_stat stat_rx_bytes; /* not always available in HW */ struct nv_driver_stat stat_rx_missed_errors; + struct nv_driver_stat stat_rx_dropped; /* media detection workaround. * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
@@ -1738,6 +1739,7 @@ static void nv_update_stats(struct net_device *dev) /* update software stats */ NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_bytes); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_missed_errors); + NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_dropped); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_packets); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_dropped);
@@ -1780,6 +1782,8 @@ nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage) storage->tx_bytes = np->estats.tx_bytes; storage->rx_errors = np->estats.rx_errors_total; storage->tx_errors = np->estats.tx_errors_total; + storage->rx_dropped = NV_DRIVER_STAT_GET_TOTAL( + &np->stat_rx_dropped); storage->tx_dropped = NV_DRIVER_STAT_GET_TOTAL( &np->stat_tx_dropped);
@@ -1835,8 +1839,10 @@ static int nv_alloc_rx(struct net_device *dev) np->put_rx.orig = np->first_rx.orig; if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) np->put_rx_ctx = np->first_rx_ctx; - } else + } else { + NV_DRIVER_STAT_ATOMIC_INC(&np->stat_rx_dropped); return 1; + } } return 0; }
@@ -1867,8 +1873,10 @@ static int nv_alloc_rx_optimized(struct net_device *dev) np->put_rx.ex = np->first_rx.ex; if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) np->put_rx_ctx = np->first_rx_ctx; - } else + } else { + NV_DRIVER_STAT_ATOMIC_INC(&np->stat_rx_dropped); return 1; + } } return 0; }
--
1.7.3.1