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 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
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-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Mon Mar 19 09:58:12 CET 2018
From: Lihong Yang lihong.yang@intel.com Date: Mon, 30 Jan 2017 12:29:32 -0800 Subject: i40e: fix ethtool to get EEPROM data from X722 interface
From: Lihong Yang lihong.yang@intel.com
[ 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.
Change-ID: I0b7d4dd6c7f2a57cace438af5dffa0f44c229372 Signed-off-by: Lihong Yang lihong.yang@intel.com Tested-by: Andrew Bowers andrewx.bowers@intel.com Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -1073,6 +1073,11 @@ 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 lihong.yang@intel.com are
queue-4.4/i40e-fix-ethtool-to-get-eeprom-data-from-x722-interface.patch