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| author | Yuval Mintz <Yuval.Mintz@qlogic.com> | 2014-04-24 20:29:53 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-04-26 20:15:27 +0400 |
| commit | 1a3d94240bc5e969e7e8cef661fbad24296ba36f (patch) | |
| tree | 5ce6fccec942f80313703c7171e2938f85b5dbf9 /drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | |
| parent | e2a367f8e3c2afd5cfd5f0892844c74960ecc031 (diff) | |
| download | linux-1a3d94240bc5e969e7e8cef661fbad24296ba36f.tar.xz | |
bnx2x: Fix vlan credit issues for VFs
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>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h index bb16c4b5c2af..6929adba52f9 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h @@ -159,6 +159,8 @@ struct bnx2x_virtf { #define vf_mac_rules_cnt(vf) ((vf)->alloc_resc.num_mac_filters) #define vf_vlan_rules_cnt(vf) ((vf)->alloc_resc.num_vlan_filters) #define vf_mc_rules_cnt(vf) ((vf)->alloc_resc.num_mc_filters) + /* Hide a single vlan filter credit for the hypervisor */ +#define vf_vlan_rules_visible_cnt(vf) (vf_vlan_rules_cnt(vf) - 1) u8 sb_count; /* actual number of SBs */ u8 igu_base_id; /* base igu status block id */ |