Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[cascardo/linux.git] / drivers / net / ethernet / intel / i40e / i40e_main.c

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index fcdea29..61b0fc4 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5112,9 +5112,13 @@ static int i40e_init_pf_dcb(struct i40e_pf *pf)
                                       DCB_CAP_DCBX_VER_IEEE;
 
                        pf->flags |= I40E_FLAG_DCB_CAPABLE;
-                       /* Enable DCB tagging only when more than one TC */
+                       /* Enable DCB tagging only when more than one TC
+                        * or explicitly disable if only one TC
+                        */
                        if (i40e_dcb_get_num_tc(&hw->local_dcbx_config) > 1)
                                pf->flags |= I40E_FLAG_DCB_ENABLED;
+                       else
+                               pf->flags &= ~I40E_FLAG_DCB_ENABLED;
                        dev_dbg(&pf->pdev->dev,
                                "DCBX offload is supported for this PF.\n");
                }
@@ -5715,7 +5719,7 @@ static int i40e_handle_lldp_event(struct i40e_pf *pf,
        u8 type;
 
        /* Not DCB capable or capability disabled */
-       if (!(pf->flags & I40E_FLAG_DCB_CAPABLE))
+       if (!(pf->flags & I40E_FLAG_DCB_ENABLED))
                return ret;
 
        /* Ignore if event is not for Nearest Bridge */
@@ -7895,6 +7899,7 @@ static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
 #endif
                                       I40E_FLAG_RSS_ENABLED    |
                                       I40E_FLAG_DCB_CAPABLE    |
+                                      I40E_FLAG_DCB_ENABLED    |
                                       I40E_FLAG_SRIOV_ENABLED  |
                                       I40E_FLAG_FD_SB_ENABLED  |
                                       I40E_FLAG_FD_ATR_ENABLED |
@@ -10531,6 +10536,7 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
                               I40E_FLAG_FD_SB_ENABLED  |
                               I40E_FLAG_FD_ATR_ENABLED |
                               I40E_FLAG_DCB_CAPABLE    |
+                              I40E_FLAG_DCB_ENABLED    |
                               I40E_FLAG_SRIOV_ENABLED  |
                               I40E_FLAG_VMDQ_ENABLED);
        } else if (!(pf->flags & (I40E_FLAG_RSS_ENABLED |
@@ -10554,7 +10560,8 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
                /* Not enough queues for all TCs */
                if ((pf->flags & I40E_FLAG_DCB_CAPABLE) &&
                    (queues_left < I40E_MAX_TRAFFIC_CLASS)) {
-                       pf->flags &= ~I40E_FLAG_DCB_CAPABLE;
+                       pf->flags &= ~(I40E_FLAG_DCB_CAPABLE |
+                                       I40E_FLAG_DCB_ENABLED);
                        dev_info(&pf->pdev->dev, "not enough queues for DCB. DCB is disabled.\n");
                }
                pf->num_lan_qps = max_t(int, pf->rss_size_max,
@@ -10951,7 +10958,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        err = i40e_init_pf_dcb(pf);
        if (err) {
                dev_info(&pdev->dev, "DCB init failed %d, disabled\n", err);
-               pf->flags &= ~I40E_FLAG_DCB_CAPABLE;
+               pf->flags &= ~(I40E_FLAG_DCB_CAPABLE & I40E_FLAG_DCB_ENABLED);
                /* Continue without DCB enabled */
        }
 #endif /* CONFIG_I40E_DCB */