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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2009-10-27 15:49:49 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-28 01:20:17 -0700 |
| commit | 094919a4b0c56d6afbfb5ea14567fbb2f8d47554 (patch) | |
| tree | aa58e687d3e918b097b1aeaca9467e66d957ad65 /drivers | |
| parent | 047e0030f1e601233ae5b03910602ec93c620bce (diff) | |
| download | op-kernel-dev-094919a4b0c56d6afbfb5ea14567fbb2f8d47554.zip op-kernel-dev-094919a4b0c56d6afbfb5ea14567fbb2f8d47554.tar.gz | |
igb: remove rx checksum good counter
Counting packets with a good checksum can cause a significant amount of cache
line bouncing due to the shared counter being written to by all of the queues.
In order to avoid this I am removing the counter since we still have the
checksum failed counter which will tell us if there are any issues.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/igb/igb.h | 1 | ||||
| -rw-r--r-- | drivers/net/igb/igb_ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/igb/igb_main.c | 1 |
3 files changed, 0 insertions, 3 deletions
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h index 86492c8..d27dcd1 100644 --- a/drivers/net/igb/igb.h +++ b/drivers/net/igb/igb.h @@ -254,7 +254,6 @@ struct igb_adapter { int num_rx_queues; u64 hw_csum_err; - u64 hw_csum_good; u32 alloc_rx_buff_failed; u32 gorc; u64 gorc_old; diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c index f71276f..2929546 100644 --- a/drivers/net/igb/igb_ethtool.c +++ b/drivers/net/igb/igb_ethtool.c @@ -95,7 +95,6 @@ static const struct igb_stats igb_gstrings_stats[] = { { "tx_flow_control_xon", IGB_STAT(stats.xontxc) }, { "tx_flow_control_xoff", IGB_STAT(stats.xofftxc) }, { "rx_long_byte_count", IGB_STAT(stats.gorc) }, - { "rx_csum_offload_good", IGB_STAT(hw_csum_good) }, { "rx_csum_offload_errors", IGB_STAT(hw_csum_err) }, { "tx_dma_out_of_sync", IGB_STAT(stats.doosync) }, { "alloc_rx_buff_failed", IGB_STAT(alloc_rx_buff_failed) }, diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index c15eb4c..e1d1c0c 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -4827,7 +4827,6 @@ static inline void igb_rx_checksum_adv(struct igb_adapter *adapter, skb->ip_summed = CHECKSUM_UNNECESSARY; dev_dbg(&adapter->pdev->dev, "cksum success: bits %08X\n", status_err); - adapter->hw_csum_good++; } static inline u16 igb_get_hlen(struct igb_adapter *adapter, |
