diff mbox

[net-next-2.6,1/5] ixgbe: dcb, set DPF bit when PFC is enabled

Message ID 20100719235831.14112.14175.stgit@localhost.localdomain
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Kirsher, Jeffrey T July 19, 2010, 11:59 p.m. UTC 
From: John Fastabend <john.r.fastabend@intel.com>

Set the DPF bit when PFC is enabled.  This will discard
PFC frames so they do not get passed up the stack.

The DPF bit is set for flow control, but not priority
flow control this brings pfc inline with fc.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

 drivers/net/ixgbe/ixgbe_dcb_82599.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


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Comments

David Miller July 20, 2010, 3:24 a.m. UTC | #1 
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Mon, 19 Jul 2010 16:59:03 -0700

> From: John Fastabend <john.r.fastabend@intel.com>
> 
> Set the DPF bit when PFC is enabled.  This will discard
> PFC frames so they do not get passed up the stack.
> 
> The DPF bit is set for flow control, but not priority
> flow control this brings pfc inline with fc.
> 
> Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
> Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
> Tested-by: Ross Brattain <ross.b.brattain@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Applied.
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diff mbox

Patch

diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.c b/drivers/net/ixgbe/ixgbe_dcb_82599.c
index 4f7a26a..25b02fb 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_82599.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_82599.c
@@ -346,7 +346,7 @@  s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw,
 	 */
 	reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
 	reg &= ~IXGBE_MFLCN_RFCE;
-	reg |= IXGBE_MFLCN_RPFCE;
+	reg |= IXGBE_MFLCN_RPFCE | IXGBE_MFLCN_DPF;
 	IXGBE_WRITE_REG(hw, IXGBE_MFLCN, reg);
 out:
 	return 0;