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authorAlexander Lobakin <alobakin@marvell.com>2020-07-20 21:08:09 +0300
committerDavid S. Miller <davem@davemloft.net>2020-07-20 17:59:44 -0700
commit9bdca14a0e844f298de3bcfd167b214666cc35aa (patch)
treef75ab54ab55d9a41f5f4c4661f717fb112a8d8a5 /drivers
parent460761570ba3073b15c2903db9efc0142790defd (diff)
qede: introduce support for FEC control
Add Ethtool callbacks for querying and setting FEC parameters if it's supported by the underlying qed module and MFW version running on the device. Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/qlogic/qede/qede_ethtool.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
index fdccceb69632..b9aa6384563b 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -1834,6 +1834,78 @@ static int qede_set_eee(struct net_device *dev, struct ethtool_eee *edata)
return 0;
}
+static u32 qede_link_to_ethtool_fec(u32 link_fec)
+{
+ u32 eth_fec = 0;
+
+ if (link_fec & QED_FEC_MODE_NONE)
+ eth_fec |= ETHTOOL_FEC_OFF;
+ if (link_fec & QED_FEC_MODE_FIRECODE)
+ eth_fec |= ETHTOOL_FEC_BASER;
+ if (link_fec & QED_FEC_MODE_RS)
+ eth_fec |= ETHTOOL_FEC_RS;
+ if (link_fec & QED_FEC_MODE_AUTO)
+ eth_fec |= ETHTOOL_FEC_AUTO;
+ if (link_fec & QED_FEC_MODE_UNSUPPORTED)
+ eth_fec |= ETHTOOL_FEC_NONE;
+
+ return eth_fec;
+}
+
+static u32 qede_ethtool_to_link_fec(u32 eth_fec)
+{
+ u32 link_fec = 0;
+
+ if (eth_fec & ETHTOOL_FEC_OFF)
+ link_fec |= QED_FEC_MODE_NONE;
+ if (eth_fec & ETHTOOL_FEC_BASER)
+ link_fec |= QED_FEC_MODE_FIRECODE;
+ if (eth_fec & ETHTOOL_FEC_RS)
+ link_fec |= QED_FEC_MODE_RS;
+ if (eth_fec & ETHTOOL_FEC_AUTO)
+ link_fec |= QED_FEC_MODE_AUTO;
+ if (eth_fec & ETHTOOL_FEC_NONE)
+ link_fec |= QED_FEC_MODE_UNSUPPORTED;
+
+ return link_fec;
+}
+
+static int qede_get_fecparam(struct net_device *dev,
+ struct ethtool_fecparam *fecparam)
+{
+ struct qede_dev *edev = netdev_priv(dev);
+ struct qed_link_output curr_link;
+
+ memset(&curr_link, 0, sizeof(curr_link));
+ edev->ops->common->get_link(edev->cdev, &curr_link);
+
+ fecparam->active_fec = qede_link_to_ethtool_fec(curr_link.active_fec);
+ fecparam->fec = qede_link_to_ethtool_fec(curr_link.sup_fec);
+
+ return 0;
+}
+
+static int qede_set_fecparam(struct net_device *dev,
+ struct ethtool_fecparam *fecparam)
+{
+ struct qede_dev *edev = netdev_priv(dev);
+ struct qed_link_params params;
+
+ if (!edev->ops || !edev->ops->common->can_link_change(edev->cdev)) {
+ DP_INFO(edev, "Link settings are not allowed to be changed\n");
+ return -EOPNOTSUPP;
+ }
+
+ memset(&params, 0, sizeof(params));
+ params.override_flags |= QED_LINK_OVERRIDE_FEC_CONFIG;
+ params.fec = qede_ethtool_to_link_fec(fecparam->fec);
+ params.link_up = true;
+
+ edev->ops->common->set_link(edev->cdev, &params);
+
+ return 0;
+}
+
static int qede_get_module_info(struct net_device *dev,
struct ethtool_modinfo *modinfo)
{
@@ -2070,6 +2142,8 @@ static const struct ethtool_ops qede_ethtool_ops = {
.get_module_eeprom = qede_get_module_eeprom,
.get_eee = qede_get_eee,
.set_eee = qede_set_eee,
+ .get_fecparam = qede_get_fecparam,
+ .set_fecparam = qede_set_fecparam,
.get_tunable = qede_get_tunable,
.set_tunable = qede_set_tunable,
.flash_device = qede_flash_device,