lkml.org 
[lkml]   [2011]   [Nov]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH net-next v1 6/9] forcedeth: account for dropped RX frames
Date
This adds the stats counter for dropped RX frames.



Signed-off-by: David Decotigny <david.decotigny@google.com>
---
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 0b4fd1a..85e34b6c 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -818,6 +818,7 @@ struct fe_priv {
u32 nic_poll_irq;
int rx_ring_size;
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);
@@ -1727,6 +1728,7 @@ static void nv_update_stats(struct net_device *dev)
}

/* update software stats */
+ NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_dropped);
NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_dropped);
NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_missed_errors);
}
@@ -1759,6 +1761,8 @@ 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);
storage->multicast = np->estats.rx_multicast;
@@ -1812,8 +1816,10 @@ 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;
}
@@ -1844,8 +1850,10 @@ 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


\
 
 \ /
  Last update: 2011-11-09 23:13    [W:0.946 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site