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e1000: Fixes for packet split related issues

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Fixes for packet split related issues
  * On platforms where PAGE_SIZE > 4K, driver will use only required number of
    pages compared to always using 3 pages.
  * Packet split won't be used if the PAGE_SIZE is > 16K
  * Adds a statistics counter to splits.
  * Setting the non Null ptr to zero sized buffers to solve packet split
    receive descriptor error
  * When the no of pages needed is calculated, the header buffer is not
    included for a given MTU.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Mallikarjuna R Chilakala
2005-10-04 07:05:44 -04:00
committed by Jeff Garzik
parent 2ae76d98fb
commit e4c811c9d2
3 changed files with 60 additions and 38 deletions
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3
drivers/net/e1000/e1000_ethtool.c
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@@ -91,7 +91,8 @@ static const struct e1000_stats e1000_gstrings_stats[] = {
{ "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
{ "rx_long_byte_count", E1000_STAT(stats.gorcl) },
{ "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
{ "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }
{ "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
{ "rx_header_split", E1000_STAT(rx_hdr_split) },
};
#define E1000_STATS_LEN \
sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)