diff mbox series

[V2,net-next,3/4] net: marvell: prestera: define and implement MDB / flood domain API for entires creation and deletion

Message ID 20220617101520.19794-4-oleksandr.mazur@plvision.eu (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: marvell: prestera: add MDB offloading support | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit fail Errors and warnings before: 0 this patch: 9
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang fail Errors and warnings before: 0 this patch: 9
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn fail Errors and warnings before: 0 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 173 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Oleksandr Mazur June 17, 2022, 10:15 a.m. UTC 
Define and implement prestera API calls for managing MDB and
  flood domain (ports) entries (create / delete / find calls).

Co-developed-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
---
 .../net/ethernet/marvell/prestera/prestera.h  |  19 +++
 .../ethernet/marvell/prestera/prestera_main.c | 144 ++++++++++++++++++
 2 files changed, 163 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
index 9c7d59fbbc83..9b109ae563d1 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -368,4 +368,23 @@  struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id);
 
 u16 prestera_port_lag_id(const struct prestera_port *port);
 
+struct prestera_mdb_entry *
+prestera_mdb_entry_create(struct prestera_switch *sw,
+			  const unsigned char *addr, u16 vid);
+void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry);
+
+struct prestera_flood_domain *
+prestera_flood_domain_create(struct prestera_switch *sw);
+void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain);
+
+int
+prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain,
+				  struct net_device *dev,
+				  u16 vid);
+void
+prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port);
+struct prestera_flood_domain_port *
+prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain,
+				struct net_device *dev, u16 vid);
+
 #endif /* _PRESTERA_H_ */
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index 4b95ef393b6e..04abff9b049d 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -915,6 +915,150 @@  static int prestera_netdev_event_handler(struct notifier_block *nb,
 	return notifier_from_errno(err);
 }
 
+struct prestera_mdb_entry *
+prestera_mdb_entry_create(struct prestera_switch *sw,
+			  const unsigned char *addr, u16 vid)
+{
+	struct prestera_flood_domain *flood_domain;
+	struct prestera_mdb_entry *mdb_entry;
+
+	mdb_entry = kzalloc(sizeof(*mdb_entry), GFP_KERNEL);
+	if (!mdb_entry)
+		goto err_mdb_alloc;
+
+	flood_domain = prestera_flood_domain_create(sw);
+	if (!flood_domain)
+		goto err_flood_domain_create;
+
+	mdb_entry->sw = sw;
+	mdb_entry->vid = vid;
+	mdb_entry->flood_domain = flood_domain;
+	ether_addr_copy(mdb_entry->addr, addr);
+
+	if (prestera_hw_mdb_create(mdb_entry))
+		goto err_mdb_hw_create;
+
+	return mdb_entry;
+
+err_mdb_hw_create:
+	prestera_flood_domain_destroy(flood_domain);
+err_flood_domain_create:
+	kfree(mdb_entry);
+err_mdb_alloc:
+	return NULL;
+}
+
+void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry)
+{
+	prestera_hw_mdb_destroy(mdb_entry);
+	prestera_flood_domain_destroy(mdb_entry->flood_domain);
+	kfree(mdb_entry);
+}
+
+struct prestera_flood_domain *
+prestera_flood_domain_create(struct prestera_switch *sw)
+{
+	struct prestera_flood_domain *domain;
+
+	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
+	if (!domain)
+		return NULL;
+
+	domain->sw = sw;
+
+	if (prestera_hw_flood_domain_create(domain)) {
+		kfree(domain);
+		return NULL;
+	}
+
+	INIT_LIST_HEAD(&domain->flood_domain_port_list);
+
+	return domain;
+}
+
+void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain)
+{
+	WARN_ON(!list_empty(&flood_domain->flood_domain_port_list));
+	WARN_ON_ONCE(prestera_hw_flood_domain_destroy(flood_domain));
+	kfree(flood_domain);
+}
+
+int
+prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain,
+				  struct net_device *dev,
+				  u16 vid)
+{
+	struct prestera_flood_domain_port *flood_domain_port;
+	bool is_first_port_in_list = false;
+	int err;
+
+	flood_domain_port = kzalloc(sizeof(*flood_domain_port), GFP_KERNEL);
+	if (!flood_domain_port) {
+		err = -ENOMEM;
+		goto err_port_alloc;
+	}
+
+	flood_domain_port->vid = vid;
+
+	if (list_empty(&flood_domain->flood_domain_port_list))
+		is_first_port_in_list = true;
+
+	list_add(&flood_domain_port->flood_domain_port_node,
+		 &flood_domain->flood_domain_port_list);
+
+	flood_domain_port->flood_domain = flood_domain;
+	flood_domain_port->dev = dev;
+
+	if (!is_first_port_in_list) {
+		err = prestera_hw_flood_domain_ports_reset(flood_domain);
+		if (err)
+			goto err_prestera_mdb_port_create_hw;
+	}
+
+	err = prestera_hw_flood_domain_ports_set(flood_domain);
+	if (err)
+		goto err_prestera_mdb_port_create_hw;
+
+	return 0;
+
+err_prestera_mdb_port_create_hw:
+	list_del(&flood_domain_port->flood_domain_port_node);
+	kfree(flood_domain_port);
+err_port_alloc:
+	return err;
+}
+
+void
+prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port)
+{
+	struct prestera_flood_domain *flood_domain = port->flood_domain;
+
+	list_del(&port->flood_domain_port_node);
+
+	WARN_ON_ONCE(prestera_hw_flood_domain_ports_reset(flood_domain));
+
+	if (!list_empty(&flood_domain->flood_domain_port_list))
+		WARN_ON_ONCE(prestera_hw_flood_domain_ports_set(flood_domain));
+
+	kfree(port);
+}
+
+struct prestera_flood_domain_port *
+prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain,
+				struct net_device *dev, u16 vid)
+{
+	struct prestera_flood_domain_port *flood_domain_port;
+
+	list_for_each_entry(flood_domain_port,
+			    &flood_domain->flood_domain_port_list,
+			    flood_domain_port_node)
+		if (flood_domain_port->dev == dev &&
+		    vid == flood_domain_port->vid)
+			return flood_domain_port;
+
+	return NULL;
+}
+
 static int prestera_netdev_event_handler_register(struct prestera_switch *sw)
 {
 	sw->netdev_nb.notifier_call = prestera_netdev_event_handler;