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Mon, 11 Jul 2022 11:28:43 +0000 From: Oleksandr Mazur To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, oleksandr.mazur@plvision.eu, tchornyi@marvell.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, lkp@intel.com, Yevhen Orlov Subject: [PATCH V5 net-next 3/4] net: marvell: prestera: define and implement MDB / flood domain API for entries creation and deletion Date: Mon, 11 Jul 2022 14:28:21 +0300 Message-Id: <20220711112822.13725-4-oleksandr.mazur@plvision.eu> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220711112822.13725-1-oleksandr.mazur@plvision.eu> References: <20220711112822.13725-1-oleksandr.mazur@plvision.eu> X-ClientProxiedBy: FR3P281CA0080.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:1f::15) To GV1P190MB2019.EURP190.PROD.OUTLOOK.COM (2603:10a6:150:5b::20) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: cad0088c-da20-4c66-da0e-08da63308324 X-MS-TrafficTypeDiagnostic: AS8P190MB1208:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Co-developed-by: Yevhen Orlov Signed-off-by: Yevhen Orlov Signed-off-by: Oleksandr Mazur --- .../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;