[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

I210 may not reach maximum speed on Intel Alder Lake platforms.

Following the datasheet to ensure I210 is not in idle state when CPU is
using PCIe link to perform TX.

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

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(-)


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