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ixgbe: dcb, set DPF bit when PFC is enabled 

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
John Fastabend 2010-07-19 13:59:03 +00:00 committed by David S. Miller
parent b59544649d
commit fca562ad63
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ixgbe/ixgbe_dcb_82599.c
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@ -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;