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Commit 1e6e2ded authored by Rahul Verma's avatar Rahul Verma Committed by David S. Miller
Browse files

qede: Check available link modes before link set from ethtool. 



	Set link mode after checking available "supported" link caps
	of the port.

Signed-off-by: default avatarRahul Verma <Rahul.Verma@cavium.com>
Signed-off-by: default avatarAriel Elior <ariel.elior@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c56a8be7

drivers/net/ethernet/qlogic/qede/qede_ethtool.c

+45 −19
Original line number Diff line number Diff line
@@ -518,6 +518,7 @@ static int qede_set_link_ksettings(struct net_device *dev, 
	struct qede_dev *edev = netdev_priv(dev);

	struct qed_link_output current_link;

	struct qed_link_params params;

	u32 sup_caps;



	if (!edev->ops || !edev->ops->common->can_link_change(edev->cdev)) {

		DP_INFO(edev, "Link settings are not allowed to be changed\n");
@@ -544,20 +545,31 @@ static int qede_set_link_ksettings(struct net_device *dev, 
		params.forced_speed = base->speed;

		switch (base->speed) {

		case SPEED_1000:

			if (!(current_link.supported_caps &

			      QED_LM_1000baseT_Full_BIT)) {

			sup_caps = QED_LM_1000baseT_Full_BIT |

					QED_LM_1000baseKX_Full_BIT |

					QED_LM_1000baseX_Full_BIT;

			if (!(current_link.supported_caps & sup_caps)) {

				DP_INFO(edev, "1G speed not supported\n");

				return -EINVAL;

			}

			params.adv_speeds = QED_LM_1000baseT_Full_BIT;

			params.adv_speeds = current_link.supported_caps &

						sup_caps;

			break;

		case SPEED_10000:

			if (!(current_link.supported_caps &

			      QED_LM_10000baseKR_Full_BIT)) {

			sup_caps = QED_LM_10000baseT_Full_BIT |

					QED_LM_10000baseKR_Full_BIT |

					QED_LM_10000baseKX4_Full_BIT |

					QED_LM_10000baseR_FEC_BIT |

					QED_LM_10000baseCR_Full_BIT |

					QED_LM_10000baseSR_Full_BIT |

					QED_LM_10000baseLR_Full_BIT |

					QED_LM_10000baseLRM_Full_BIT;

			if (!(current_link.supported_caps & sup_caps)) {

				DP_INFO(edev, "10G speed not supported\n");

				return -EINVAL;

			}

			params.adv_speeds = QED_LM_10000baseKR_Full_BIT;

			params.adv_speeds = current_link.supported_caps &

						sup_caps;

			break;

		case SPEED_20000:

			if (!(current_link.supported_caps &
@@ -568,36 +580,50 @@ static int qede_set_link_ksettings(struct net_device *dev, 
			params.adv_speeds = QED_LM_20000baseKR2_Full_BIT;

			break;

		case SPEED_25000:

			if (!(current_link.supported_caps &

			      QED_LM_25000baseKR_Full_BIT)) {

			sup_caps = QED_LM_25000baseKR_Full_BIT |

					QED_LM_25000baseCR_Full_BIT |

					QED_LM_25000baseSR_Full_BIT;

			if (!(current_link.supported_caps & sup_caps)) {

				DP_INFO(edev, "25G speed not supported\n");

				return -EINVAL;

			}

			params.adv_speeds = QED_LM_25000baseKR_Full_BIT;

			params.adv_speeds = current_link.supported_caps &

						sup_caps;

			break;

		case SPEED_40000:

			if (!(current_link.supported_caps &

			      QED_LM_40000baseLR4_Full_BIT)) {

			sup_caps = QED_LM_40000baseLR4_Full_BIT |

					QED_LM_40000baseKR4_Full_BIT |

					QED_LM_40000baseCR4_Full_BIT |

					QED_LM_40000baseSR4_Full_BIT;

			if (!(current_link.supported_caps & sup_caps)) {

				DP_INFO(edev, "40G speed not supported\n");

				return -EINVAL;

			}

			params.adv_speeds = QED_LM_40000baseLR4_Full_BIT;

			params.adv_speeds = current_link.supported_caps &

						sup_caps;

			break;

		case SPEED_50000:

			if (!(current_link.supported_caps &

			      QED_LM_50000baseKR2_Full_BIT)) {

			sup_caps = QED_LM_50000baseKR2_Full_BIT |

					QED_LM_50000baseCR2_Full_BIT |

					QED_LM_50000baseSR2_Full_BIT;

			if (!(current_link.supported_caps & sup_caps)) {

				DP_INFO(edev, "50G speed not supported\n");

				return -EINVAL;

			}

			params.adv_speeds = QED_LM_50000baseKR2_Full_BIT;

			params.adv_speeds = current_link.supported_caps &

						sup_caps;

			break;

		case SPEED_100000:

			if (!(current_link.supported_caps &

			      QED_LM_100000baseKR4_Full_BIT)) {

			sup_caps = QED_LM_100000baseKR4_Full_BIT |

					QED_LM_100000baseSR4_Full_BIT |

					QED_LM_100000baseCR4_Full_BIT |

					QED_LM_100000baseLR4_ER4_Full_BIT;

			if (!(current_link.supported_caps & sup_caps)) {

				DP_INFO(edev, "100G speed not supported\n");

				return -EINVAL;

			}

			params.adv_speeds = QED_LM_100000baseKR4_Full_BIT;

			params.adv_speeds = current_link.supported_caps &

						sup_caps;

			break;

		default:

			DP_INFO(edev, "Unsupported speed %u\n", base->speed);