diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2014-01-15 17:38:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-15 21:48:18 -0800 |
| commit | dbf231af81a789645f7c8d7e3ddce48e1ef08083 (patch) | |
| tree | dc0cdd6a5e7d3f0b8628069a756e779ca0319803 /drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | |
| parent | 87397379d566d5d8692df1bfc22bef95fd64ae3b (diff) | |
ixgbe: Clear head write-back registers on VF reset
The Tx head write-back registers are not cleared during an FLR or VF reset.
As a result a configuration that had head write-back enabled can leave the
registers set after the driver is unloaded. If the next driver loaded doesn't
use the write-back registers this can lead to a bad configuration where
head write-back is enabled, but the driver didn't request it.
To avoid this situation the PF should be resetting the Tx head write-back
registers when the VF requests a reset.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_type.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h index d8e59f42b85c..0d39cfc4a3bf 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h @@ -2174,6 +2174,14 @@ enum { #define IXGBE_MBVFICR(_i) (0x00710 + ((_i) * 4)) #define IXGBE_VFLRE(_i) ((((_i) & 1) ? 0x001C0 : 0x00600)) #define IXGBE_VFLREC(_i) (0x00700 + ((_i) * 4)) +/* Translated register #defines */ +#define IXGBE_PVFTDWBAL(P) (0x06038 + (0x40 * (P))) +#define IXGBE_PVFTDWBAH(P) (0x0603C + (0x40 * (P))) + +#define IXGBE_PVFTDWBALn(q_per_pool, vf_number, vf_q_index) \ + (IXGBE_PVFTDWBAL((q_per_pool)*(vf_number) + (vf_q_index))) +#define IXGBE_PVFTDWBAHn(q_per_pool, vf_number, vf_q_index) \ + (IXGBE_PVFTDWBAH((q_per_pool)*(vf_number) + (vf_q_index))) enum ixgbe_fdir_pballoc_type { IXGBE_FDIR_PBALLOC_NONE = 0, |