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Commit c271dd6c authored by Lihong Yang's avatar Lihong Yang Committed by Jeff Kirsher
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i40e: fix ethtool to get EEPROM data from X722 interface 



Currently ethtool -e will error out with a X722 interface
as its EEPROM has a scope limit at offset 0x5B9FFF.
This patch fixes the issue by setting the EEPROM length to
the scope limit to avoid NVM read failure beyond that.

Change-ID: I0b7d4dd6c7f2a57cace438af5dffa0f44c229372
Signed-off-by: default avatarLihong Yang <lihong.yang@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent c0cf70a6

drivers/net/ethernet/intel/i40e/i40e_ethtool.c

+5 −0
Original line number Diff line number Diff line
@@ -1165,6 +1165,11 @@ static int i40e_get_eeprom_len(struct net_device *netdev) 
	struct i40e_hw *hw = &np->vsi->back->hw;

	u32 val;



#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF

	if (hw->mac.type == I40E_MAC_X722) {

		val = X722_EEPROM_SCOPE_LIMIT + 1;

		return val;

	}

	val = (rd32(hw, I40E_GLPCI_LBARCTRL)

		& I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)

		>> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;