lkml.org 
[lkml]   [2019]   [Jun]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 130/241] i40e: dont allow changes to HW VLAN stripping on active port VLANs
Date
[ Upstream commit bfb0ebed53857cfc57f11c63fa3689940d71c1c8 ]

Modifying the VLAN stripping options when a port VLAN is configured
will break traffic for the VSI, and conceptually doesn't make sense,
so don't allow this.

Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 06b38f50980c5..22c43a776c6cd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2263,6 +2263,10 @@ void i40e_vlan_stripping_enable(struct i40e_vsi *vsi)
struct i40e_vsi_context ctxt;
i40e_status ret;

+ /* Don't modify stripping options if a port VLAN is active */
+ if (vsi->info.pvid)
+ return;
+
if ((vsi->info.valid_sections &
cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0))
@@ -2293,6 +2297,10 @@ void i40e_vlan_stripping_disable(struct i40e_vsi *vsi)
struct i40e_vsi_context ctxt;
i40e_status ret;

+ /* Don't modify stripping options if a port VLAN is active */
+ if (vsi->info.pvid)
+ return;
+
if ((vsi->info.valid_sections &
cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) ==
--
2.20.1


\
 
 \ /
  Last update: 2019-06-09 19:11    [W:0.611 / U:13.744 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site