i40e: only register client on iWarp-capable devices

[ Upstream commit 004eb614c4d2fcc12a98714fd887a860582f203a ]

The client interface is only intended for use on devices that support
iWarp. Only register with the client if this is the case.

This fixes a panic when loading i40iw on X710 devices.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Reported-by: Stefan Assmann <sassmann@kpanic.de>
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>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index becffd1..57c7456 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11142,10 +11142,12 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                  round_jiffies(jiffies + pf->service_timer_period));
 
        /* add this PF to client device list and launch a client service task */
-       err = i40e_lan_add_device(pf);
-       if (err)
-               dev_info(&pdev->dev, "Failed to add PF to client API service list: %d\n",
-                        err);
+       if (pf->flags & I40E_FLAG_IWARP_ENABLED) {
+               err = i40e_lan_add_device(pf);
+               if (err)
+                       dev_info(&pdev->dev, "Failed to add PF to client API service list: %d\n",
+                                err);
+       }
 
 #ifdef I40E_FCOE
        /* create FCoE interface */
@@ -11323,10 +11325,11 @@ static void i40e_remove(struct pci_dev *pdev)
                i40e_vsi_release(pf->vsi[pf->lan_vsi]);
 
        /* remove attached clients */
-       ret_code = i40e_lan_del_device(pf);
-       if (ret_code) {
-               dev_warn(&pdev->dev, "Failed to delete client device: %d\n",
-                        ret_code);
+       if (pf->flags & I40E_FLAG_IWARP_ENABLED) {
+               ret_code = i40e_lan_del_device(pf);
+               if (ret_code)
+                       dev_warn(&pdev->dev, "Failed to delete client device: %d\n",
+                                ret_code);
        }
 
        /* shutdown and destroy the HMC */