Enable ethtool reset support. Each ethtool reset
type is mapped to the CVL reset type:
ETH_RESET_MAC - ICE_RESET_CORER
ETH_RESET_ALL - ICE_RESET_GLOBR
ETH_RESET_DEDICATED - ICE_RESET_PFR
Multiple reset flags are not supported.
Calling any reset type on port representor triggers VF reset.
Command example:
GLOBR:
$ ethtool --reset enp1s0f0np0 all
CORER:
$ ethtool --reset enp1s0f0np0 mac
PFR:
$ ethtool --reset enp1s0f0np0 dedicated
VF reset:
$ ethtool --reset $port_representor mac
Reviewed-by: Michal Swiatkowski <michal.swiatkow...@linux.intel.com>
Reviewed-by: Marcin Szycik <marcin.szy...@linux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.dre...@intel.com>
---
drivers/net/ethernet/intel/ice/ice_ethtool.c | 64 ++++++++++++++++++++
1 file changed, 64 insertions(+)
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c
b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 39d2652c3ee1..00b8ac3f1dff 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -4794,6 +4794,68 @@ static void ice_get_ts_stats(struct net_device *netdev,
ts_stats->lost = ptp->tx_hwtstamp_timeouts;
}
+/**
+ * ice_ethtool_reset - triggers a given type of reset
+ * @dev: network interface device structure
+ * @flags: set of reset flags
+ *
+ * Note that multiple reset flags are not supported
+ */
+static int ice_ethtool_reset(struct net_device *dev, u32 *flags)
+{
+ struct ice_netdev_priv *np = netdev_priv(dev);
+ struct ice_pf *pf = np->vsi->back;
+ enum ice_reset_req reset;
+
+ switch (*flags) {
+ case ETH_RESET_MAC:
+ *flags &= ~ETH_RESET_MAC;
+ reset = ICE_RESET_CORER;
+ break;
+ case ETH_RESET_ALL:
+ *flags &= ~ETH_RESET_ALL;
+ reset = ICE_RESET_GLOBR;
+ break;
+ case ETH_RESET_DEDICATED:
+ *flags &= ~ETH_RESET_DEDICATED;
+ reset = ICE_RESET_PFR;
+ break;
+ default:
+ netdev_info(dev, "Unsupported set of ethtool flags, multiple
flags are not supported");
+ return -EOPNOTSUPP;
+ }
+
+ ice_schedule_reset(pf, reset);
+
+ return 0;
+}
+
+/**
+ * ice_repr_ethtool_reset - triggers a VF reset
+ * @dev: network interface device structure
+ * @flags: set of reset flags
+ *
+ * VF associated with the given port representor will be reset
+ * Any type of reset will trigger VF reset
+ */
+static int ice_repr_ethtool_reset(struct net_device *dev, u32 *flags)
+{
+ struct ice_repr *repr = ice_netdev_to_repr(dev);
+ struct ice_vf *vf;
+
+ if (repr->type != ICE_REPR_TYPE_VF)
+ return -EOPNOTSUPP;
+
+ vf = repr->vf;
+
+ if (ice_check_vf_ready_for_cfg(vf))
+ return -EBUSY;
+
+ *flags = 0;
+
+ return ice_reset_vf(vf, ICE_VF_RESET_VFLR | ICE_VF_RESET_LOCK);
+}
+
static const struct ethtool_ops ice_ethtool_ops = {
.cap_rss_ctx_supported = true,
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
@@ -4829,6 +4891,7 @@ static const struct ethtool_ops ice_ethtool_ops = {
.nway_reset = ice_nway_reset,
.get_pauseparam = ice_get_pauseparam,
.set_pauseparam = ice_set_pauseparam,
+ .reset = ice_ethtool_reset,
.get_rxfh_key_size = ice_get_rxfh_key_size,
.get_rxfh_indir_size = ice_get_rxfh_indir_size,
.get_rxfh = ice_get_rxfh,
@@ -4885,6 +4948,7 @@ static const struct ethtool_ops ice_ethtool_repr_ops = {
.get_strings = ice_repr_get_strings,
.get_ethtool_stats = ice_repr_get_ethtool_stats,
.get_sset_count = ice_repr_get_sset_count,
+ .reset = ice_repr_ethtool_reset,
};
/**
--
2.40.1
