diff mbox series

[iwl-next,v3,13/15] ice: support subfunction devlink Tx topology

Message ID 20240528043813.1342483-14-michal.swiatkowski@linux.intel.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series ice: support devlink subfunction | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Michal Swiatkowski May 28, 2024, 4:38 a.m. UTC 
Flow for creating Tx topology is the same as for VF port representors,
but the devlink port is stored in different place (sf->devlink_port).

When creating VF devlink lock isn't taken, when creating subfunction it
is. Setting Tx topology function needs to take this lock, check if it
was taken before to not do it twice.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
---
 drivers/net/ethernet/intel/ice/devlink/devlink.c     | 12 ++++++++++++
 .../net/ethernet/intel/ice/devlink/devlink_port.c    |  1 +
 drivers/net/ethernet/intel/ice/ice_repr.c            | 12 +++++++-----
 3 files changed, 20 insertions(+), 5 deletions(-)

Comments

Simon Horman May 31, 2024, 6:18 p.m. UTC | #1 
On Tue, May 28, 2024 at 06:38:11AM +0200, Michal Swiatkowski wrote:
> Flow for creating Tx topology is the same as for VF port representors,
> but the devlink port is stored in different place (sf->devlink_port).
> 
> When creating VF devlink lock isn't taken, when creating subfunction it
> is. Setting Tx topology function needs to take this lock, check if it
> was taken before to not do it twice.
> 
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>

Reviewed-by: Simon Horman <horms@kernel.org>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
index 58196c170b1b..327cc2767b03 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.c
@@ -746,6 +746,7 @@  static void ice_traverse_tx_tree(struct devlink *devlink, struct ice_sched_node
 				 struct ice_sched_node *tc_node, struct ice_pf *pf)
 {
 	struct devlink_rate *rate_node = NULL;
+	struct ice_dynamic_port *sf;
 	struct ice_vf *vf;
 	int i;
 
@@ -757,6 +758,7 @@  static void ice_traverse_tx_tree(struct devlink *devlink, struct ice_sched_node
 		/* create root node */
 		rate_node = devl_rate_node_create(devlink, node, node->name, NULL);
 	} else if (node->vsi_handle &&
+		   pf->vsi[node->vsi_handle]->type == ICE_VSI_VF &&
 		   pf->vsi[node->vsi_handle]->vf) {
 		vf = pf->vsi[node->vsi_handle]->vf;
 		if (!vf->devlink_port.devlink_rate)
@@ -765,6 +767,16 @@  static void ice_traverse_tx_tree(struct devlink *devlink, struct ice_sched_node
 			 */
 			devl_rate_leaf_create(&vf->devlink_port, node,
 					      node->parent->rate_node);
+	} else if (node->vsi_handle &&
+		   pf->vsi[node->vsi_handle]->type == ICE_VSI_SF &&
+		   pf->vsi[node->vsi_handle]->sf) {
+		sf = pf->vsi[node->vsi_handle]->sf;
+		if (!sf->devlink_port.devlink_rate)
+			/* leaf nodes doesn't have children
+			 * so we don't set rate_node
+			 */
+			devl_rate_leaf_create(&sf->devlink_port, node,
+					      node->parent->rate_node);
 	} else if (node->info.data.elem_type != ICE_AQC_ELEM_TYPE_LEAF &&
 		   node->parent->rate_node) {
 		rate_node = devl_rate_node_create(devlink, node, node->name,
diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
index fb3ff68e0666..4cfd90581d92 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
@@ -711,6 +711,7 @@  int ice_devlink_create_sf_port(struct ice_dynamic_port *dyn_port)
  */
 void ice_devlink_destroy_sf_port(struct ice_dynamic_port *dyn_port)
 {
+	devl_rate_leaf_destroy(&dyn_port->devlink_port);
 	devl_port_unregister(&dyn_port->devlink_port);
 }
 
diff --git a/drivers/net/ethernet/intel/ice/ice_repr.c b/drivers/net/ethernet/intel/ice/ice_repr.c
index 78abfdf5d47b..00d4a9125dfa 100644
--- a/drivers/net/ethernet/intel/ice/ice_repr.c
+++ b/drivers/net/ethernet/intel/ice/ice_repr.c
@@ -347,16 +347,13 @@  static void ice_repr_rem_sf(struct ice_repr *repr)
 	ice_devlink_destroy_sf_port(repr->sf);
 }
 
-static void ice_repr_set_tx_topology(struct ice_pf *pf)
+static void ice_repr_set_tx_topology(struct ice_pf *pf, struct devlink *devlink)
 {
-	struct devlink *devlink;
-
 	/* only export if ADQ and DCB disabled and eswitch enabled*/
 	if (ice_is_adq_active(pf) || ice_is_dcb_active(pf) ||
 	    !ice_is_switchdev_running(pf))
 		return;
 
-	devlink = priv_to_devlink(pf);
 	ice_devlink_rate_init_tx_topology(devlink, ice_get_main_vsi(pf));
 }
 
@@ -408,6 +405,7 @@  static struct ice_repr *ice_repr_create(struct ice_vsi *src_vsi)
 static int ice_repr_add_vf(struct ice_repr *repr)
 {
 	struct ice_vf *vf = repr->vf;
+	struct devlink *devlink;
 	int err;
 
 	err = ice_devlink_create_vf_port(vf);
@@ -424,7 +422,9 @@  static int ice_repr_add_vf(struct ice_repr *repr)
 		goto err_cfg_vsi;
 
 	ice_virtchnl_set_repr_ops(vf);
-	ice_repr_set_tx_topology(vf->pf);
+
+	devlink = priv_to_devlink(vf->pf);
+	ice_repr_set_tx_topology(vf->pf, devlink);
 
 	return 0;
 
@@ -480,6 +480,8 @@  static int ice_repr_add_sf(struct ice_repr *repr)
 	if (err)
 		goto err_netdev;
 
+	ice_repr_set_tx_topology(sf->vsi->back, priv_to_devlink(sf->vsi->back));
+
 	return 0;
 
 err_netdev: