tree 566b2893dbab0e9ac438e256164ba4981aa8d357
parent 4f08f4910290e9b62bbc993513fd9331c95f3dee
author Sam Kunz <samkunz@google.com> 1621555276 +0000
committer COS Cherry Picker <cloud-image-release@prod.google.com> 1622849175 -0700

gve: Upgrade memory barrier in poll routine

We need a hard memory barrier in the poll routine for
both tx and rx, so upgrade the barrier in the poll routine
and remove the rx specific barrier since it is now the same.

Upstream Commit: https://github.com/GoogleCloudPlatform/compute-virtual-ethernet-linux/commit/e5d501eda8d644b1d4e59da381ccc9e895106061

SOURCE=GVE(e5d501eda8d644b1d4e59da381ccc9e895106061)
BUG=b/186581049
TEST=presubmit and customer tested the image.
RELEASE_NOTE=Fixed a network regression while using gve network
interface.

cos-patch: bug
Change-Id: Ic45e2688aa6a532dfd643e9d270a824eee1c668f
Signed-off-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/17432
Reviewed-by: Oleksandr Tymoshenko <ovt@google.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>