Patch "i40e: fix ethtool to get EEPROM data from X722 interface" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

i40e: fix ethtool to get EEPROM data from X722 interface

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
i40e-fix-ethtool-to-get-eeprom-data-from-x722-interface.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Lihong Yang <[email protected]>
Date: Mon, 30 Jan 2017 12:29:32 -0800
Subject: i40e: fix ethtool to get EEPROM data from X722 interface

From: Lihong Yang <[email protected]>

[ Upstream commit c271dd6c391b535226cf1a81aaad9f33cb5899d3 ]

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.

---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c |    5 +++++
 1 file changed, 5 insertions(+)

@@ -1135,6 +1135,11 @@ static int i40e_get_eeprom_len(struct ne
 	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;

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/i40e-fix-ethtool-to-get-eeprom-data-from-x722-interface.patch