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| author | Babu Moger <babu.moger@oracle.com> | 2016-04-21 15:56:49 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-05-04 00:24:31 -0700 |
| commit | 33b0eb15961393d8c60e7c4bddd23da53cd1c2e4 (patch) | |
| tree | 741f3c9e4bacfaeeb9fe64ad7e38851a9ca8f599 | |
| parent | 45a88dfcd806ca8774180026891b136ef10fd844 (diff) | |
| download | linux-33b0eb15961393d8c60e7c4bddd23da53cd1c2e4.tar.bz2 | |
ixgbevf: Change the relaxed order settings in VF driver for sparc
We noticed performance issues with VF interface on sparc compared
to PF. Setting the RX to IXGBE_DCA_RXCTRL_DATA_WRO_EN brings it
on far with PF. Also this matches to the default sparc setting in
PF driver.
Signed-off-by: Babu Moger <babu.moger@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index f39c8cb35839..14d4729e7519 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -1760,9 +1760,15 @@ static void ixgbevf_configure_rx_ring(struct ixgbevf_adapter *adapter, IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(reg_idx), ring->count * sizeof(union ixgbe_adv_rx_desc)); +#ifndef CONFIG_SPARC /* enable relaxed ordering */ IXGBE_WRITE_REG(hw, IXGBE_VFDCA_RXCTRL(reg_idx), IXGBE_DCA_RXCTRL_DESC_RRO_EN); +#else + IXGBE_WRITE_REG(hw, IXGBE_VFDCA_RXCTRL(reg_idx), + IXGBE_DCA_RXCTRL_DESC_RRO_EN | + IXGBE_DCA_RXCTRL_DATA_WRO_EN); +#endif /* reset head and tail pointers */ IXGBE_WRITE_REG(hw, IXGBE_VFRDH(reg_idx), 0); |