diff mbox series

[net-next,v4,09/15] ice: create port representor for SF

Message ID 20240813215005.3647350-10-anthony.l.nguyen@intel.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series ice: support devlink subfunction | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 29 this patch: 29
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 29 this patch: 29
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 31 this patch: 31
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 197 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 17 this patch: 17
netdev/source_inline success Was 0 now: 0
netdev/contest warning net-next-2024-08-14--09-00 (tests: 708)

Commit Message

Tony Nguyen Aug. 13, 2024, 9:49 p.m. UTC
From: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>

Implement attaching and detaching SF port representor. It is done in the
same way as the VF port representor.

SF port representor is always added or removed with devlink
lock taken.

Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 .../ethernet/intel/ice/devlink/devlink_port.c |  6 +--
 drivers/net/ethernet/intel/ice/ice_eswitch.c  | 39 ++++++++++++++
 drivers/net/ethernet/intel/ice/ice_eswitch.h  | 11 ++++
 drivers/net/ethernet/intel/ice/ice_repr.c     | 52 +++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_repr.h     |  7 ++-
 drivers/net/ethernet/intel/ice/ice_sf_eth.c   |  2 +
 6 files changed, 113 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
index 4df72aefa6df..844702a49a92 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
@@ -543,7 +543,7 @@  static void ice_dealloc_dynamic_port(struct ice_dynamic_port *dyn_port)
 	struct ice_pf *pf = dyn_port->pf;
 
 	xa_erase(&pf->sf_nums, devlink_port->attrs.pci_sf.sf);
-	devl_port_unregister(devlink_port);
+	ice_eswitch_detach_sf(pf, dyn_port);
 	ice_vsi_free(dyn_port->vsi);
 	xa_erase(&pf->dyn_ports, dyn_port->vsi->idx);
 	kfree(dyn_port);
@@ -765,9 +765,9 @@  ice_alloc_dynamic_port(struct ice_pf *pf,
 		goto unroll_vsi_alloc;
 	}
 
-	err = ice_devlink_create_sf_port(dyn_port);
+	err = ice_eswitch_attach_sf(pf, dyn_port);
 	if (err) {
-		NL_SET_ERR_MSG_MOD(extack, "Port registration failed");
+		NL_SET_ERR_MSG_MOD(extack, "Failed to attach SF to eswitch");
 		goto unroll_xa_insert;
 	}
 
diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.c b/drivers/net/ethernet/intel/ice/ice_eswitch.c
index 00d49477bdcb..c0b3e70a7ea3 100644
--- a/drivers/net/ethernet/intel/ice/ice_eswitch.c
+++ b/drivers/net/ethernet/intel/ice/ice_eswitch.c
@@ -525,6 +525,30 @@  int ice_eswitch_attach_vf(struct ice_pf *pf, struct ice_vf *vf)
 	return err;
 }
 
+/**
+ * ice_eswitch_attach_sf - attach SF to a eswitch
+ * @pf: pointer to PF structure
+ * @sf: pointer to SF structure to be attached
+ *
+ * During attaching port representor for SF is created.
+ *
+ * Return: zero on success or an error code on failure.
+ */
+int ice_eswitch_attach_sf(struct ice_pf *pf, struct ice_dynamic_port *sf)
+{
+	struct ice_repr *repr = ice_repr_create_sf(sf);
+	int err;
+
+	if (IS_ERR(repr))
+		return PTR_ERR(repr);
+
+	err = ice_eswitch_attach(pf, repr, &sf->repr_id);
+	if (err)
+		ice_repr_destroy(repr);
+
+	return err;
+}
+
 static void ice_eswitch_detach(struct ice_pf *pf, struct ice_repr *repr)
 {
 	ice_eswitch_stop_reprs(pf);
@@ -568,6 +592,21 @@  void ice_eswitch_detach_vf(struct ice_pf *pf, struct ice_vf *vf)
 	devl_unlock(devlink);
 }
 
+/**
+ * ice_eswitch_detach_sf - detach SF from a eswitch
+ * @pf: pointer to PF structure
+ * @sf: pointer to SF structure to be detached
+ */
+void ice_eswitch_detach_sf(struct ice_pf *pf, struct ice_dynamic_port *sf)
+{
+	struct ice_repr *repr = xa_load(&pf->eswitch.reprs, sf->repr_id);
+
+	if (!repr)
+		return;
+
+	ice_eswitch_detach(pf, repr);
+}
+
 /**
  * ice_eswitch_get_target - get netdev based on src_vsi from descriptor
  * @rx_ring: ring used to receive the packet
diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.h b/drivers/net/ethernet/intel/ice/ice_eswitch.h
index d1699954a7ad..20ce32dda69c 100644
--- a/drivers/net/ethernet/intel/ice/ice_eswitch.h
+++ b/drivers/net/ethernet/intel/ice/ice_eswitch.h
@@ -9,7 +9,9 @@ 
 
 #ifdef CONFIG_ICE_SWITCHDEV
 void ice_eswitch_detach_vf(struct ice_pf *pf, struct ice_vf *vf);
+void ice_eswitch_detach_sf(struct ice_pf *pf, struct ice_dynamic_port *sf);
 int ice_eswitch_attach_vf(struct ice_pf *pf, struct ice_vf *vf);
+int ice_eswitch_attach_sf(struct ice_pf *pf, struct ice_dynamic_port *sf);
 
 int ice_eswitch_mode_get(struct devlink *devlink, u16 *mode);
 int
@@ -34,12 +36,21 @@  void ice_eswitch_decfg_vsi(struct ice_vsi *vsi, const u8 *mac);
 static inline void
 ice_eswitch_detach_vf(struct ice_pf *pf, struct ice_vf *vf) { }
 
+static inline void
+ice_eswitch_detach_sf(struct ice_pf *pf, struct ice_dynamic_port *sf) { }
+
 static inline int
 ice_eswitch_attach_vf(struct ice_pf *pf, struct ice_vf *vf)
 {
 	return -EOPNOTSUPP;
 }
 
+static inline int
+ice_eswitch_attach_sf(struct ice_pf *pf, struct ice_dynamic_port *sf)
+{
+	return -EOPNOTSUPP;
+}
+
 static inline void ice_eswitch_stop_all_tx_queues(struct ice_pf *pf) { }
 
 static inline void
diff --git a/drivers/net/ethernet/intel/ice/ice_repr.c b/drivers/net/ethernet/intel/ice/ice_repr.c
index 5d71f623b1e0..5ea8b512c421 100644
--- a/drivers/net/ethernet/intel/ice/ice_repr.c
+++ b/drivers/net/ethernet/intel/ice/ice_repr.c
@@ -302,6 +302,12 @@  static void ice_repr_rem_vf(struct ice_repr *repr)
 	ice_virtchnl_set_dflt_ops(repr->vf);
 }
 
+static void ice_repr_rem_sf(struct ice_repr *repr)
+{
+	unregister_netdev(repr->netdev);
+	ice_devlink_destroy_sf_port(repr->sf);
+}
+
 static void ice_repr_set_tx_topology(struct ice_pf *pf)
 {
 	struct devlink *devlink;
@@ -420,6 +426,52 @@  struct ice_repr *ice_repr_create_vf(struct ice_vf *vf)
 	return repr;
 }
 
+static int ice_repr_add_sf(struct ice_repr *repr)
+{
+	struct ice_dynamic_port *sf = repr->sf;
+	int err;
+
+	err = ice_devlink_create_sf_port(sf);
+	if (err)
+		return err;
+
+	SET_NETDEV_DEVLINK_PORT(repr->netdev, &sf->devlink_port);
+	err = ice_repr_reg_netdev(repr->netdev);
+	if (err)
+		goto err_netdev;
+
+	return 0;
+
+err_netdev:
+	ice_devlink_destroy_sf_port(sf);
+	return err;
+}
+
+/**
+ * ice_repr_create_sf - add representor for SF VSI
+ * @sf: SF to create port representor on
+ *
+ * Set correct representor type for SF and functions pointer.
+ *
+ * Return: created port representor on success, error otherwise
+ */
+struct ice_repr *ice_repr_create_sf(struct ice_dynamic_port *sf)
+{
+	struct ice_repr *repr = ice_repr_create(sf->vsi);
+
+	if (!repr)
+		return ERR_PTR(-ENOMEM);
+
+	repr->type = ICE_REPR_TYPE_SF;
+	repr->sf = sf;
+	repr->ops.add = ice_repr_add_sf;
+	repr->ops.rem = ice_repr_rem_sf;
+
+	ether_addr_copy(repr->parent_mac, sf->hw_addr);
+
+	return repr;
+}
+
 struct ice_repr *ice_repr_get(struct ice_pf *pf, u32 id)
 {
 	return xa_load(&pf->eswitch.reprs, id);
diff --git a/drivers/net/ethernet/intel/ice/ice_repr.h b/drivers/net/ethernet/intel/ice/ice_repr.h
index c6e77b9c6a32..ee28632e87b4 100644
--- a/drivers/net/ethernet/intel/ice/ice_repr.h
+++ b/drivers/net/ethernet/intel/ice/ice_repr.h
@@ -17,6 +17,7 @@  struct ice_repr_pcpu_stats {
 
 enum ice_repr_type {
 	ICE_REPR_TYPE_VF,
+	ICE_REPR_TYPE_SF,
 };
 
 struct ice_repr {
@@ -28,7 +29,10 @@  struct ice_repr {
 	u32 id;
 	u8 parent_mac[ETH_ALEN];
 	enum ice_repr_type type;
-	struct ice_vf *vf;
+	union {
+		struct ice_vf *vf;
+		struct ice_dynamic_port *sf;
+	};
 	struct {
 		int (*add)(struct ice_repr *repr);
 		void (*rem)(struct ice_repr *repr);
@@ -36,6 +40,7 @@  struct ice_repr {
 };
 
 struct ice_repr *ice_repr_create_vf(struct ice_vf *vf);
+struct ice_repr *ice_repr_create_sf(struct ice_dynamic_port *sf);
 
 void ice_repr_destroy(struct ice_repr *repr);
 
diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.c b/drivers/net/ethernet/intel/ice/ice_sf_eth.c
index 05d9e7384c5e..e90546aea729 100644
--- a/drivers/net/ethernet/intel/ice/ice_sf_eth.c
+++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.c
@@ -126,6 +126,8 @@  static int ice_sf_dev_probe(struct auxiliary_device *adev,
 	}
 	vsi->sf = dyn_port;
 
+	ice_eswitch_update_repr(&dyn_port->repr_id, vsi);
+
 	err = ice_devlink_create_sf_dev_port(sf_dev);
 	if (err) {
 		dev_err(dev, "Cannot add ice virtual devlink port for subfunction");