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Subject[PATCH net-next v3 3/6] net: marvell: prestera: Add prestera router infra
Date
Add prestera_router.c, which contains code to subscribe/unsubscribe on
kernel notifiers for router. This handle kernel notifications,
parse structures to make key to manipulate prestera_router_hw's objects.

Also prestera_router is container for router's objects database.

Co-developed-by: Taras Chornyi <tchornyi@marvell.com>
Signed-off-by: Taras Chornyi <tchornyi@marvell.com>
Co-developed-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>

Change-Id: I89e11722c1a1d41f07f98e57b6413cec165a70bf
---
.../net/ethernet/marvell/prestera/Makefile | 3 +-
.../net/ethernet/marvell/prestera/prestera.h | 8 ++++++
.../ethernet/marvell/prestera/prestera_main.c | 7 +++++
.../marvell/prestera/prestera_router.c | 28 +++++++++++++++++++
4 files changed, 45 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/ethernet/marvell/prestera/prestera_router.c

diff --git a/drivers/net/ethernet/marvell/prestera/Makefile b/drivers/net/ethernet/marvell/prestera/Makefile
index 48dbcb2baf8f..ec69fc564a9f 100644
--- a/drivers/net/ethernet/marvell/prestera/Makefile
+++ b/drivers/net/ethernet/marvell/prestera/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_PRESTERA) += prestera.o
prestera-objs := prestera_main.o prestera_hw.o prestera_dsa.o \
prestera_rxtx.o prestera_devlink.o prestera_ethtool.o \
prestera_switchdev.o prestera_acl.o prestera_flow.o \
- prestera_flower.o prestera_span.o prestera_counter.o
+ prestera_flower.o prestera_span.o prestera_counter.o \
+ prestera_router.o

obj-$(CONFIG_PRESTERA_PCI) += prestera_pci.o
diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
index 636caf492531..412b45ec2b30 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -270,12 +270,17 @@ struct prestera_switch {
u32 mtu_min;
u32 mtu_max;
u8 id;
+ struct prestera_router *router;
struct prestera_lag *lags;
struct prestera_counter *counter;
u8 lag_member_max;
u8 lag_max;
};

+struct prestera_router {
+ struct prestera_switch *sw;
+};
+
struct prestera_rxtx_params {
bool use_sdma;
u32 map_addr;
@@ -303,6 +308,9 @@ struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,

int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes);

+int prestera_router_init(struct prestera_switch *sw);
+void prestera_router_fini(struct prestera_switch *sw);
+
struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id);

int prestera_port_cfg_mac_read(struct prestera_port *port,
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index a0dbad5cb88d..7acf920bfb62 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -893,6 +893,10 @@ static int prestera_switch_init(struct prestera_switch *sw)
if (err)
return err;

+ err = prestera_router_init(sw);
+ if (err)
+ goto err_router_init;
+
err = prestera_switchdev_init(sw);
if (err)
goto err_swdev_register;
@@ -949,6 +953,8 @@ static int prestera_switch_init(struct prestera_switch *sw)
err_rxtx_register:
prestera_switchdev_fini(sw);
err_swdev_register:
+ prestera_router_fini(sw);
+err_router_init:
prestera_netdev_event_handler_unregister(sw);
prestera_hw_switch_fini(sw);

@@ -967,6 +973,7 @@ static void prestera_switch_fini(struct prestera_switch *sw)
prestera_event_handlers_unregister(sw);
prestera_rxtx_switch_fini(sw);
prestera_switchdev_fini(sw);
+ prestera_router_fini(sw);
prestera_netdev_event_handler_unregister(sw);
prestera_hw_switch_fini(sw);
}
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router.c b/drivers/net/ethernet/marvell/prestera/prestera_router.c
new file mode 100644
index 000000000000..f3980d10eb29
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera_router.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/* Copyright (c) 2019-2021 Marvell International Ltd. All rights reserved */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "prestera.h"
+
+int prestera_router_init(struct prestera_switch *sw)
+{
+ struct prestera_router *router;
+
+ router = kzalloc(sizeof(*sw->router), GFP_KERNEL);
+ if (!router)
+ return -ENOMEM;
+
+ sw->router = router;
+ router->sw = sw;
+
+ return 0;
+}
+
+void prestera_router_fini(struct prestera_switch *sw)
+{
+ kfree(sw->router);
+ sw->router = NULL;
+}
+
--
2.17.1
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