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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: Rahul Verma <Rahul.Verma@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rahul Verma 2018-10-16 03:59:21 -07:00 committed by David S. Miller
parent c56a8be7e7
commit 1e6e2ded0f
1 changed files with 45 additions and 19 deletions
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64
drivers/net/ethernet/qlogic/qede/qede_ethtool.c
View File

@ -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");
@ -544,60 +545,85 @@ 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 &
QED_LM_20000baseKR2_Full_BIT)) {
QED_LM_20000baseKR2_Full_BIT)) {
DP_INFO(edev, "20G speed not supported\n");
return -EINVAL;
}
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);