[SRU] [J] [PATCH 0/1] Fix sub-optimal I210 network speed Edit
Kai-Heng Feng
kai.heng.feng at canonical.com
Wed Aug 3 14:40:23 UTC 2022
BugLink: https://bugs.launchpad.net/bugs/1976438
[Impact]
I210 may not reach maximum speed on Intel Alder Lake platforms.
[Fix]
Following the datasheet to ensure I210 is not in idle state when CPU is
using PCIe link to perform TX.
[Test]
With the fix applied, the I210 TX/RX speed can reach ~94x MBps.
[Where problems could occur]
Since this changes how hardware idles, it can slightly increase power
consumption.
Kai-Heng Feng (1):
igb: Make DMA faster when CPU is active on the PCIe link
drivers/net/ethernet/intel/igb/igb_main.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
--
2.36.1
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