e1000e: Disable TSO on i219-LM card to increase speed
authorSebastian Basierski <sebastianx.basierski@intel.com>
Mon, 17 Apr 2023 20:53:45 +0000 (13:53 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Apr 2023 12:28:35 +0000 (14:28 +0200)
commitb91798017c3ef66017dc62ad1afa1defc388ab8d
tree063e106c1fd5d56213308b2202c7b35705881b7e
parent89603f4c9154e818b9ead1abe08545a053c66ded
e1000e: Disable TSO on i219-LM card to increase speed

[ Upstream commit 67d47b95119ad589b0a0b16b88b1dd9a04061ced ]

While using i219-LM card currently it was only possible to achieve
about 60% of maximum speed due to regression introduced in Linux 5.8.
This was caused by TSO not being disabled by default despite commit
f29801030ac6 ("e1000e: Disable TSO for buffer overrun workaround").
Fix that by disabling TSO during driver probe.

Fixes: f29801030ac6 ("e1000e: Disable TSO for buffer overrun workaround")
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230417205345.1030801-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/intel/e1000e/netdev.c