struct ixgbe_fcoe *fcoe;
struct ixgbe_adapter *adapter;
struct ixgbe_fcoe_ddp *ddp;
+ u32 fcbuff;
if (!netdev)
goto out_ddp_put;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCBUFF, 0);
IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCDMARW,
(xid | IXGBE_FCDMARW_WE));
+
+ /* guaranteed to be invalidated after 100us */
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCDMARW,
+ (xid | IXGBE_FCDMARW_RE));
+ fcbuff = IXGBE_READ_REG(&adapter->hw, IXGBE_FCBUFF);
spin_unlock_bh(&fcoe->lock);
+ if (fcbuff & IXGBE_FCBUFF_VALID)
+ udelay(100);
}
if (ddp->sgl)
pci_unmap_sg(adapter->pdev, ddp->sgl, ddp->sgc,