diff options
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_pci.c')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index 12089cedbe56..6d5e33cde6a7 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -38,6 +38,36 @@ static const struct pci_device_id fm10k_pci_tbl[] = { }; MODULE_DEVICE_TABLE(pci, fm10k_pci_tbl); +u16 fm10k_read_pci_cfg_word(struct fm10k_hw *hw, u32 reg) +{ + struct fm10k_intfc *interface = hw->back; + u16 value = 0; + + if (FM10K_REMOVED(hw->hw_addr)) + return ~value; + + pci_read_config_word(interface->pdev, reg, &value); + if (value == 0xFFFF) + fm10k_write_flush(hw); + + return value; +} + +u32 fm10k_read_reg(struct fm10k_hw *hw, int reg) +{ + u32 __iomem *hw_addr = ACCESS_ONCE(hw->hw_addr); + u32 value = 0; + + if (FM10K_REMOVED(hw_addr)) + return ~value; + + value = readl(&hw_addr[reg]); + if (!(~value) && (!reg || !(~readl(hw_addr)))) + hw->hw_addr = NULL; + + return value; +} + /** * fm10k_probe - Device Initialization Routine * @pdev: PCI device information struct |