bnx2x: Fix vlan credit issues for VFs

Browse source

Starting with commit 2dc33bbc "bnx2x: Remove the sriov VFOP mechanism",
the bnx2x started enforcing vlan credits for all vlan configurations.
This exposed 2 issues:
  - Vlan credits are not returned once a VF is removed; this causes a leak
    of credits, and eventually will lead to VFs with no vlan credits.
  - A vlan credit must be set aside for the Hypervisor to use, and should
    not be visible to the VF.

Although linux VFs at the moment do not support vlan configuration [from the
VF side] which causes them to be resilient to this sort of issue, Windows VF
over linux hypervisors might fail to load as the vlan credits become depleted.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Yuval Mintz 2014-04-24 19:29:53 +03:00 • committed by David S. Miller

parent e2a367f8e3

commit 1a3d94240b

3 changed files with 37 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

44

drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c

View file

2

drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h

View file

2

drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c

View file