* Patch "ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths" has been added to the 4.7-stable tree
@ 2016-09-28 8:38 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2016-09-28 8:38 UTC (permalink / raw)
To: alexander.h.duyck, andrewx.bowers, gregkh, jeffrey.t.kirsher
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths
to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ixgbe-force-vlnctrl.vfe-to-be-set-in-all-vmdq-paths.patch
and it can be found in the queue-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From f60439bc21e3337429838e477903214f5bd8277f Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 11 Aug 2016 14:51:56 -0700
Subject: ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths
From: Alexander Duyck <alexander.h.duyck@intel.com>
commit f60439bc21e3337429838e477903214f5bd8277f upstream.
When I was adding the code for enabling VLAN promiscuous mode with SR-IOV
enabled I had inadvertently left the VLNCTRL.VFE bit unchanged as I has
assumed there was code in another path that was setting it when we enabled
SR-IOV. This wasn't the case and as a result we were just disabling VLAN
filtering for all the VFs apparently.
Also the previous patches were always clearing CFIEN which was always set
to 0 by the hardware anyway so I am dropping the redundant bit clearing.
Fixes: 16369564915a ("ixgbe: Add support for VLAN promiscuous with SR-IOV")
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -4100,6 +4100,8 @@ static void ixgbe_vlan_promisc_enable(st
struct ixgbe_hw *hw = &adapter->hw;
u32 vlnctrl, i;
+ vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
+
switch (hw->mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
@@ -4112,8 +4114,7 @@ static void ixgbe_vlan_promisc_enable(st
/* fall through */
case ixgbe_mac_82598EB:
/* legacy case, we can just disable VLAN filtering */
- vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
- vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN);
+ vlnctrl &= ~IXGBE_VLNCTRL_VFE;
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
return;
}
@@ -4125,6 +4126,10 @@ static void ixgbe_vlan_promisc_enable(st
/* Set flag so we don't redo unnecessary work */
adapter->flags2 |= IXGBE_FLAG2_VLAN_PROMISC;
+ /* For VMDq and SR-IOV we must leave VLAN filtering enabled */
+ vlnctrl |= IXGBE_VLNCTRL_VFE;
+ IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
+
/* Add PF to all active pools */
for (i = IXGBE_VLVF_ENTRIES; --i;) {
u32 reg_offset = IXGBE_VLVFB(i * 2 + VMDQ_P(0) / 32);
@@ -4191,6 +4196,11 @@ static void ixgbe_vlan_promisc_disable(s
struct ixgbe_hw *hw = &adapter->hw;
u32 vlnctrl, i;
+ /* Set VLAN filtering to enabled */
+ vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
+ vlnctrl |= IXGBE_VLNCTRL_VFE;
+ IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
+
switch (hw->mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
@@ -4202,10 +4212,6 @@ static void ixgbe_vlan_promisc_disable(s
break;
/* fall through */
case ixgbe_mac_82598EB:
- vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
- vlnctrl &= ~IXGBE_VLNCTRL_CFIEN;
- vlnctrl |= IXGBE_VLNCTRL_VFE;
- IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
return;
}
Patches currently in stable-queue which might be from alexander.h.duyck@intel.com are
queue-4.7/ixgbe-force-vlnctrl.vfe-to-be-set-in-all-vmdq-paths.patch
queue-4.7/ixgbe-re-enable-ability-to-toggle-vlan-filtering.patch
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2016-09-28 8:38 Patch "ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths" has been added to the 4.7-stable tree gregkh
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