Re: [Intel-wired-lan] [iwl-next v1 11/14] ice: netdevice ops for SF representor

[Michal Swiatkowski <michal.swiatkowski@linux.intel.com>]

On Thu, May 09, 2024 at 01:17:26PM +0200, Jiri Pirko wrote:
> Subject does not have verb. Please add it.
> 
> Otherwise, the patch looks ok.

Thanks, will add sth like "implement".

> 
> Reviewed-by: Jiri Pirko <jiri@nvidia.com>
> 
> 
> 
> Tue, May 07, 2024 at 01:45:12PM CEST, michal.swiatkowski@linux.intel.com wrote:
> >Subfunction port representor needs the basic netdevice ops to work
> >correctly. Create them.
> >
> >Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
> >Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
> >---
> > drivers/net/ethernet/intel/ice/ice_repr.c | 57 +++++++++++++++++------
> > 1 file changed, 43 insertions(+), 14 deletions(-)
> >
> >diff --git a/drivers/net/ethernet/intel/ice/ice_repr.c b/drivers/net/ethernet/intel/ice/ice_repr.c
> >index 3cb3fc5f52ea..ec4f5b8b46e6 100644
> >--- a/drivers/net/ethernet/intel/ice/ice_repr.c
> >+++ b/drivers/net/ethernet/intel/ice/ice_repr.c
> >@@ -59,12 +59,13 @@ static void
> > ice_repr_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
> > {
> > 	struct ice_netdev_priv *np = netdev_priv(netdev);
> >+	struct ice_repr *repr = np->repr;
> > 	struct ice_eth_stats *eth_stats;
> > 	struct ice_vsi *vsi;
> > 
> >-	if (ice_is_vf_disabled(np->repr->vf))
> >+	if (repr->ops.ready(repr))
> > 		return;
> >-	vsi = np->repr->src_vsi;
> >+	vsi = repr->src_vsi;
> > 
> > 	ice_update_vsi_stats(vsi);
> > 	eth_stats = &vsi->eth_stats;
> >@@ -93,7 +94,7 @@ struct ice_repr *ice_netdev_to_repr(const struct net_device *netdev)
> > }
> > 
> > /**
> >- * ice_repr_open - Enable port representor's network interface
> >+ * ice_repr_vf_open - Enable port representor's network interface
> >  * @netdev: network interface device structure
> >  *
> >  * The open entry point is called when a port representor's network
> >@@ -102,7 +103,7 @@ struct ice_repr *ice_netdev_to_repr(const struct net_device *netdev)
> >  *
> >  * Returns 0 on success
> >  */
> >-static int ice_repr_open(struct net_device *netdev)
> >+static int ice_repr_vf_open(struct net_device *netdev)
> > {
> > 	struct ice_repr *repr = ice_netdev_to_repr(netdev);
> > 	struct ice_vf *vf;
> >@@ -118,8 +119,16 @@ static int ice_repr_open(struct net_device *netdev)
> > 	return 0;
> > }
> > 
> >+static int ice_repr_sf_open(struct net_device *netdev)
> >+{
> >+	netif_carrier_on(netdev);
> >+	netif_tx_start_all_queues(netdev);
> >+
> >+	return 0;
> >+}
> >+
> > /**
> >- * ice_repr_stop - Disable port representor's network interface
> >+ * ice_repr_vf_stop - Disable port representor's network interface
> >  * @netdev: network interface device structure
> >  *
> >  * The stop entry point is called when a port representor's network
> >@@ -128,7 +137,7 @@ static int ice_repr_open(struct net_device *netdev)
> >  *
> >  * Returns 0 on success
> >  */
> >-static int ice_repr_stop(struct net_device *netdev)
> >+static int ice_repr_vf_stop(struct net_device *netdev)
> > {
> > 	struct ice_repr *repr = ice_netdev_to_repr(netdev);
> > 	struct ice_vf *vf;
> >@@ -144,6 +153,14 @@ static int ice_repr_stop(struct net_device *netdev)
> > 	return 0;
> > }
> > 
> >+static int ice_repr_sf_stop(struct net_device *netdev)
> >+{
> >+	netif_carrier_off(netdev);
> >+	netif_tx_stop_all_queues(netdev);
> >+
> >+	return 0;
> >+}
> >+
> > /**
> >  * ice_repr_sp_stats64 - get slow path stats for port representor
> >  * @dev: network interface device structure
> >@@ -245,10 +262,20 @@ ice_repr_setup_tc(struct net_device *netdev, enum tc_setup_type type,
> > 	}
> > }
> > 
> >-static const struct net_device_ops ice_repr_netdev_ops = {
> >+static const struct net_device_ops ice_repr_vf_netdev_ops = {
> >+	.ndo_get_stats64 = ice_repr_get_stats64,
> >+	.ndo_open = ice_repr_vf_open,
> >+	.ndo_stop = ice_repr_vf_stop,
> >+	.ndo_start_xmit = ice_eswitch_port_start_xmit,
> >+	.ndo_setup_tc = ice_repr_setup_tc,
> >+	.ndo_has_offload_stats = ice_repr_ndo_has_offload_stats,
> >+	.ndo_get_offload_stats = ice_repr_ndo_get_offload_stats,
> >+};
> >+
> >+static const struct net_device_ops ice_repr_sf_netdev_ops = {
> > 	.ndo_get_stats64 = ice_repr_get_stats64,
> >-	.ndo_open = ice_repr_open,
> >-	.ndo_stop = ice_repr_stop,
> >+	.ndo_open = ice_repr_sf_open,
> >+	.ndo_stop = ice_repr_sf_stop,
> > 	.ndo_start_xmit = ice_eswitch_port_start_xmit,
> > 	.ndo_setup_tc = ice_repr_setup_tc,
> > 	.ndo_has_offload_stats = ice_repr_ndo_has_offload_stats,
> >@@ -261,18 +288,20 @@ static const struct net_device_ops ice_repr_netdev_ops = {
> >  */
> > bool ice_is_port_repr_netdev(const struct net_device *netdev)
> > {
> >-	return netdev && (netdev->netdev_ops == &ice_repr_netdev_ops);
> >+	return netdev && (netdev->netdev_ops == &ice_repr_vf_netdev_ops ||
> >+			  netdev->netdev_ops == &ice_repr_sf_netdev_ops);
> > }
> > 
> > /**
> >  * ice_repr_reg_netdev - register port representor netdev
> >  * @netdev: pointer to port representor netdev
> >+ * @ops: new ops for netdev
> >  */
> > static int
> >-ice_repr_reg_netdev(struct net_device *netdev)
> >+ice_repr_reg_netdev(struct net_device *netdev, const struct net_device_ops *ops)
> > {
> > 	eth_hw_addr_random(netdev);
> >-	netdev->netdev_ops = &ice_repr_netdev_ops;
> >+	netdev->netdev_ops = ops;
> > 	ice_set_ethtool_repr_ops(netdev);
> > 
> > 	netdev->hw_features |= NETIF_F_HW_TC;
> >@@ -386,7 +415,7 @@ static int ice_repr_add_vf(struct ice_repr *repr)
> > 		return err;
> > 
> > 	SET_NETDEV_DEVLINK_PORT(repr->netdev, &vf->devlink_port);
> >-	err = ice_repr_reg_netdev(repr->netdev);
> >+	err = ice_repr_reg_netdev(repr->netdev, &ice_repr_vf_netdev_ops);
> > 	if (err)
> > 		goto err_netdev;
> > 
> >@@ -439,7 +468,7 @@ static int ice_repr_add_sf(struct ice_repr *repr)
> > 		return err;
> > 
> > 	SET_NETDEV_DEVLINK_PORT(repr->netdev, &sf->devlink_port);
> >-	err = ice_repr_reg_netdev(repr->netdev);
> >+	err = ice_repr_reg_netdev(repr->netdev, &ice_repr_sf_netdev_ops);
> > 	if (err)
> > 		goto err_netdev;
> > 
> >-- 
> >2.42.0
> >
> >