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igb: remove rx checksum good counter

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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>
This commit is contained in:
Alexander Duyck 2009-10-27 15:49:49 +00:00 committed by David S. Miller
parent 047e0030f1
commit 094919a4b0
3 changed files with 0 additions and 3 deletions
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1
drivers/net/igb/igb.h
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@ -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;

1
drivers/net/igb/igb_ethtool.c
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@ -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) },

1
drivers/net/igb/igb_main.c
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@ -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,