[SRU] [J/Unstable/OEM-5.14/OEM-5.17] [PATCH 0/1] Fix sub-optimal I210 network speed

[Kai-Heng Feng]

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):
  UBUNTU: SAUCE: 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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2.36.1