diff options
| author |   david decotigny <david.decotigny@google.com> | 2011-11-16 12:15:14 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-11-16 23:14:03 -0500 |
| commit | 0a1f222d24817bd57545dfb9573b5424db27d1d5 (patch) | |
| tree | 51b3e86ad82097cb78be50b342aa8cc5f7cb189a /drivers/net/ethernet/nvidia/forcedeth.c | |
| parent | forcedeth: implement ndo_get_stats64() API (diff) | |
| download | linux-dev-0a1f222d24817bd57545dfb9573b5424db27d1d5.tar.xz linux-dev-0a1f222d24817bd57545dfb9573b5424db27d1d5.zip | |
forcedeth: account for dropped RX frames
This adds code to update the stats counter for dropped RX frames.
Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/nvidia/forcedeth.c')
| -rw-r--r-- | 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 5d94c337dea2..b34975dca5df 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -815,6 +815,7 @@ 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); @@ -1758,6 +1759,7 @@ nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage) syncp_start = u64_stats_fetch_begin(&np->swstats_rx_syncp); storage->rx_packets = np->stat_rx_packets; storage->rx_bytes = np->stat_rx_bytes; + storage->rx_dropped = np->stat_rx_dropped; storage->rx_missed_errors = np->stat_rx_missed_errors; } while (u64_stats_fetch_retry(&np->swstats_rx_syncp, syncp_start)); @@ -1828,8 +1830,12 @@ 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_rx_syncp); + np->stat_rx_dropped++; + u64_stats_update_end(&np->swstats_rx_syncp); return 1; + } } return 0; } @@ -1860,8 +1866,12 @@ 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_rx_syncp); + np->stat_rx_dropped++; + u64_stats_update_end(&np->swstats_rx_syncp); return 1; + } } return 0; } |