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qede: introduce support for FEC control

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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>
This commit is contained in:
Alexander Lobakin
2020-07-20 21:08:09 +03:00
committed by David S. Miller
parent 460761570b
commit 9bdca14a0e
1 changed files with 74 additions and 0 deletions
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74
drivers/net/ethernet/qlogic/qede/qede_ethtool.c
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@@ -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,