BNX2_PCICFG_MSI_CONTROL
msi_ctrl = BNX2_RD(bp, BNX2_PCICFG_MSI_CONTROL);
BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &
BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);