From: Babu Moger <[email protected]> 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 <[email protected]> Acked-by: Sowmini Varadhan <[email protected]> Tested-by: Andrew Bowers <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> --- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index f39c8cb..14d4729 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); -- 2.5.5
