igc: Add NVM checksum validation

Add NVM checksum validation during probe functionality.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 2515528..965d1c9 100644 (file)
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -4133,6 +4133,15 @@ static int igc_probe(struct pci_dev *pdev,
         */
        hw->mac.ops.reset_hw(hw);
 
+       if (igc_get_flash_presence_i225(hw)) {
+               if (hw->nvm.ops.validate(hw) < 0) {
+                       dev_err(&pdev->dev,
+                               "The NVM Checksum Is Not Valid\n");
+                       err = -EIO;
+                       goto err_eeprom;
+               }
+       }
+
        if (eth_platform_get_mac_address(&pdev->dev, hw->mac.addr)) {
                /* copy the MAC address out of the NVM */
                if (hw->mac.ops.read_mac_addr(hw))