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| author | Kai-Heng Feng <kai.heng.feng@canonical.com> | 2020-05-07 22:21:07 +0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-05-22 18:21:52 -0700 |
| commit | f29801030ac67bf98b7a65d3aea67b30769d4f7c (patch) | |
| tree | 97e41b08076095bb19d0a10c886507c481035eeb /drivers/net/ethernet/intel/ice | |
| parent | 0c80cdbf33207c7aea1aec9027ad8011bd6178ad (diff) | |
| download | linux-f29801030ac67bf98b7a65d3aea67b30769d4f7c.tar.gz linux-f29801030ac67bf98b7a65d3aea67b30769d4f7c.tar.bz2 linux-f29801030ac67bf98b7a65d3aea67b30769d4f7c.zip | |
e1000e: Disable TSO for buffer overrun workaround
Commit b10effb92e27 ("e1000e: fix buffer overrun while the I219 is
processing DMA transactions") imposes roughly 30% performance penalty.
The commit log states that "Disabling TSO eliminates performance loss
for TCP traffic without a noticeable impact on CPU performance", so
let's disable TSO by default to regain the loss.
CC: stable <stable@vger.kernel.org>
Fixes: b10effb92e27 ("e1000e: fix buffer overrun while the I219 is processing DMA transactions")
BugLink: https://bugs.launchpad.net/bugs/1802691
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice')
0 files changed, 0 insertions, 0 deletions