i40e: Fix log TC creation failure when max num of queues is exceeded

BugLink: https://bugs.launchpad.net/bugs/1940706
[ Upstream commit ea52faae1d17cd3048681d86d2e8641f44de484d ]

Fix missing failed message if driver does not have enough queues to
complete TC command. Without this fix no message is displayed in dmesg.

Fixes: a9ce82f744dc ("i40e: Enable 'channel' mode in mqprio for TC configs")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Imam Hassan Reza Biswas <imam.hassan.reza.biswas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index b3a9dec414a5ad9f117216b9a0bde321429d032e..bc648ce0743c7c7dce3b87cbcbb51582b54fed2b 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -6933,6 +6933,8 @@ static int i40e_validate_mqprio_qopt(struct i40e_vsi *vsi,
        }
        if (vsi->num_queue_pairs <
            (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i])) {
+               dev_err(&vsi->back->pdev->dev,
+                       "Failed to create traffic channel, insufficient number of queues.\n");
                return -EINVAL;
        }
        if (sum_max_rate > i40e_get_link_speed(vsi)) {