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Date: Mon, 11 Jul 2022 14:28:21 +0300
From: Oleksandr Mazur <oleksandr.mazur@...ision.eu>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, oleksandr.mazur@...ision.eu,
tchornyi@...vell.com, davem@...emloft.net, edumazet@...gle.com,
kuba@...nel.org, pabeni@...hat.com, lkp@...el.com,
Yevhen Orlov <yevhen.orlov@...ision.eu>
Subject: [PATCH V5 net-next 3/4] net: marvell: prestera: define and implement MDB / flood domain API for entries creation and deletion
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@...ision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@...ision.eu>
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@...ision.eu>
---
.../net/ethernet/marvell/prestera/prestera.h | 19 +++
.../ethernet/marvell/prestera/prestera_main.c | 144 ++++++++++++++++++
2 files changed, 163 insertions(+)
diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
index bf7ecb18858a..f22fab02f59c 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -369,4 +369,23 @@ 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;
--
2.17.1
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