[PATCH net-next v4 6/8] forcedeth: account for dropped RX frames
From: David Decotigny <hidden>
Date: 2011-11-15 19:28:15
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 | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index ff01d5e..a50c839 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c@@ -819,6 +819,7 @@ struct fe_priv { u64 stat_rx_packets; u64 stat_rx_bytes; /* not always available in HW */ u64 stat_rx_missed_errors; + u64 stat_rx_dropped; /* media detection workaround. * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
@@ -1762,6 +1763,7 @@ nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage) storage->tx_packets = np->stat_tx_packets; storage->rx_bytes = np->stat_rx_bytes; storage->tx_bytes = np->stat_tx_bytes; + storage->rx_dropped = np->stat_rx_dropped; storage->tx_dropped = np->stat_tx_dropped; storage->rx_missed_errors = np->stat_rx_missed_errors; } while (u64_stats_fetch_retry(&np->swstats_syncp, syncp_start));
@@ -1826,8 +1828,12 @@ 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 { + u64_stats_update_begin(&np->swstats_syncp); + np->stat_rx_dropped++; + u64_stats_update_end(&np->swstats_syncp); return 1; + } } return 0; }
@@ -1858,8 +1864,12 @@ 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 { + u64_stats_update_begin(&np->swstats_syncp); + np->stat_rx_dropped++; + u64_stats_update_end(&np->swstats_syncp); return 1; + } } return 0; }
--
1.7.3.1