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authorAuke Kok <auke-jan.h.kok@intel.com>2008-02-21 15:10:41 -0800
committerJeff Garzik <jeff@garzik.org>2008-02-24 00:07:44 -0500
commitac0b3509f048b34ba1b60f164fd811b7cbdbc27a (patch)
tree352b2a286614aee061eac930854532f65b656cb1 /drivers/net/ixgb
parent179956f498bd8cc55fb803c4ee0cf18be59c8b01 (diff)
ixgb: add RNBC counter - no buffer count - to ethtool stats
This counter is valuable to determine if the system is unable to timely return buffers to the hardware and this counter starts to increase well before the hardware starts to drop packets. If users experience rx_no_buffer_count increasing, they should increase the amount of descriptors. That will provide more buffers for the hardware and will decrease the chance of hard drops. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/ixgb')
-rw-r--r--drivers/net/ixgb/ixgb_ethtool.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ixgb/ixgb_ethtool.c b/drivers/net/ixgb/ixgb_ethtool.c
index 53a9fd086f96..75f3a68ee354 100644
--- a/drivers/net/ixgb/ixgb_ethtool.c
+++ b/drivers/net/ixgb/ixgb_ethtool.c
@@ -67,6 +67,7 @@ static struct ixgb_stats ixgb_gstrings_stats[] = {
{"rx_over_errors", IXGB_STAT(net_stats.rx_over_errors)},
{"rx_crc_errors", IXGB_STAT(net_stats.rx_crc_errors)},
{"rx_frame_errors", IXGB_STAT(net_stats.rx_frame_errors)},
+ {"rx_no_buffer_count", IXGB_STAT(stats.rnbc)},
{"rx_fifo_errors", IXGB_STAT(net_stats.rx_fifo_errors)},
{"rx_missed_errors", IXGB_STAT(net_stats.rx_missed_errors)},
{"tx_aborted_errors", IXGB_STAT(net_stats.tx_aborted_errors)},