i40e: Add checks and message for Qualified Module info

This patch adds a check during handle_link_event for unqualified
module when link is down and there is a module plugged.  If found,
print a message.

Change-ID: Ibd8666d77d3044c2a3dd4d762d3ae9ac6e18e943
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 712a23b926b31ea7074de06bd2f088123718cfa2..172f7561643a00e307dd22dca1ceb2c7a6d1b75a 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4480,6 +4480,13 @@ static int i40e_up_complete(struct i40e_vsi *vsi)
                netif_carrier_on(vsi->netdev);
        } else if (vsi->netdev) {
                i40e_print_link_message(vsi, false);
+               /* need to check for qualified module here*/
+               if ((pf->hw.phy.link_info.link_info &
+                       I40E_AQ_MEDIA_AVAILABLE) &&
+                   (!(pf->hw.phy.link_info.an_info &
+                       I40E_AQ_QUALIFIED_MODULE)))
+                       netdev_err(vsi->netdev,
+                                  "the driver failed to link because an unqualified module was detected.");
        }
 
        /* replay FDIR SB filters */
@@ -5492,6 +5499,13 @@ static void i40e_handle_link_event(struct i40e_pf *pf,
        memcpy(&pf->hw.phy.link_info_old, hw_link_info,
               sizeof(pf->hw.phy.link_info_old));
 
+       /* check for unqualified module, if link is down */
+       if ((status->link_info & I40E_AQ_MEDIA_AVAILABLE) &&
+           (!(status->an_info & I40E_AQ_QUALIFIED_MODULE)) &&
+           (!(status->link_info & I40E_AQ_LINK_UP)))
+               dev_err(&pf->pdev->dev,
+                       "The driver failed to link because an unqualified module was detected.\n");
+
        /* update link status */
        hw_link_info->phy_type = (enum i40e_aq_phy_type)status->phy_type;
        hw_link_info->link_speed = (enum i40e_aq_link_speed)status->link_speed;