diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2008-12-26 01:33:18 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-26 01:33:18 -0800 |
| commit | 0e014cb16234c3797aa518d46fe7e1fe91ebcca9 (patch) | |
| tree | 2fea0619cb67b0a0001fa1018042d089daa4fe72 /drivers/net/igb/e1000_defines.h | |
| parent | f2712fd0b4097e8385bdb75c0ebd285a057fe299 (diff) | |
igb: defeature tx head writeback
This patch removes tx head writeback as it was found to not provide a
significant improvement in tx performance and on some systems has been seen
to cause a performance degredation due to partial cache line writes.
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/net/igb/e1000_defines.h')
| -rw-r--r-- | drivers/net/igb/e1000_defines.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h index c5fe784c9e3..40d03426c12 100644 --- a/drivers/net/igb/e1000_defines.h +++ b/drivers/net/igb/e1000_defines.h @@ -323,6 +323,7 @@ #define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */ #define E1000_TXD_CMD_RS 0x08000000 /* Report Status */ #define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */ +#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */ /* Extended desc bits for Linksec and timesync */ /* Transmit Control */ |