Public bug reported:
[Impact]
RX speed on Intel ethernet I219 v6 is extremely slow due to multiple RX
CRC errors.
[Fix]
Disable e1000e K1 feature to make I219 and PCH operate at higher speed
to avoid the issue.
[Test]
Before applying the patch, the RX is slower than 150Kbps. After applying
the fix the RX speed can achive gigabits.
[Regression Potential]
Low. This only applies to recent I219 generations.
I've also test several other systems with e1000e and I don't see any
regression.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu Disco)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-osp1 (Ubuntu Disco)
Importance: Undecided
Status: Invalid
** Also affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux-oem (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux-oem (Ubuntu Disco)
Status: New => Invalid
** Changed in: linux-oem-osp1 (Ubuntu Disco)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1836152
Title:
Intel ethernet I219 has slow RX speed
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