From:   Yevhen Orlov <yevhen.orlov@plvision.eu>
To:     netdev@vger.kernel.org
Cc:     Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>,
        Taras Chornyi <taras.chornyi@plvision.eu>,
        Mickey Rachamim <mickeyr@marvell.com>,
        Serhiy Pshyk <serhiy.pshyk@plvision.eu>,
        Yevhen Orlov <yevhen.orlov@plvision.eu>,
        Taras Chornyi <tchornyi@marvell.com>,
        Oleksandr Mazur <oleksandr.mazur@plvision.eu>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, linux-kernel@vger.kernel.org
Subject: [PATCH net-next 2/6] net: marvell: prestera: Add router interface ABI
Date:   Fri, 17 Dec 2021 21:54:34 +0200
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Add functions to enable routing on port, which is not in vlan.
Also we can enable routing on vlan.
prestera_hw_rif_create() take index of allocated virtual router.

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>
---
 .../net/ethernet/marvell/prestera/prestera.h  | 23 +++++
 .../ethernet/marvell/prestera/prestera_hw.c   | 97 +++++++++++++++++++
 .../ethernet/marvell/prestera/prestera_hw.h   |  7 ++
 3 files changed, 127 insertions(+)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
index 797b2e4d3551..636caf492531 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -225,6 +225,29 @@ struct prestera_event {
 	};
 };
 
+enum prestera_if_type {
+	/* the interface is of port type (dev,port) */
+	PRESTERA_IF_PORT_E = 0,
+
+	/* the interface is of lag type (lag-id) */
+	PRESTERA_IF_LAG_E = 1,
+
+	/* the interface is of Vid type (vlan-id) */
+	PRESTERA_IF_VID_E = 3,
+};
+
+struct prestera_iface {
+	enum prestera_if_type type;
+	struct {
+		u32 hw_dev_num;
+		u32 port_num;
+	} dev_port;
+	u32 hw_dev_num;
+	u16 vr_id;
+	u16 lag_id;
+	u16 vlan_id;
+};
+
 struct prestera_switchdev;
 struct prestera_span;
 struct prestera_rxtx;
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_hw.c
index 8783adbad593..51fc841b1e7a 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_hw.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.c
@@ -53,6 +53,8 @@ enum prestera_cmd_type_t {
 	PRESTERA_CMD_TYPE_VTCAM_IFACE_BIND = 0x560,
 	PRESTERA_CMD_TYPE_VTCAM_IFACE_UNBIND = 0x561,
 
+	PRESTERA_CMD_TYPE_ROUTER_RIF_CREATE = 0x600,
+	PRESTERA_CMD_TYPE_ROUTER_RIF_DELETE = 0x601,
 	PRESTERA_CMD_TYPE_ROUTER_VR_CREATE = 0x630,
 	PRESTERA_CMD_TYPE_ROUTER_VR_DELETE = 0x631,
 
@@ -483,6 +485,36 @@ struct prestera_msg_rxtx_resp {
 	__le32 map_addr;
 };
 
+struct prestera_msg_iface {
+	union {
+		struct {
+			__le32 dev;
+			__le32 port;
+		};
+		__le16 lag_id;
+	};
+	__le16 vr_id;
+	__le16 vid;
+	u8 type;
+	u8 __pad[3];
+};
+
+struct prestera_msg_rif_req {
+	struct prestera_msg_cmd cmd;
+	struct prestera_msg_iface iif;
+	__le32 mtu;
+	__le16 rif_id;
+	__le16 __reserved;
+	u8 mac[ETH_ALEN];
+	u8 __pad[2];
+};
+
+struct prestera_msg_rif_resp {
+	struct prestera_msg_ret ret;
+	__le16 rif_id;
+	u8 __pad[2];
+};
+
 struct prestera_msg_vr_req {
 	struct prestera_msg_cmd cmd;
 	__le16 vr_id;
@@ -564,8 +596,12 @@ static void prestera_hw_build_tests(void)
 	BUILD_BUG_ON(sizeof(struct prestera_msg_acl_action) != 32);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_counter_req) != 16);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_counter_stats) != 16);
+	BUILD_BUG_ON(sizeof(struct prestera_msg_rif_req) != 36);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_vr_req) != 8);
 
+	/*  structure that are part of req/resp fw messages */
+	BUILD_BUG_ON(sizeof(struct prestera_msg_iface) != 16);
+
 	/* check responses */
 	BUILD_BUG_ON(sizeof(struct prestera_msg_common_resp) != 8);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_switch_init_resp) != 24);
@@ -577,6 +613,7 @@ static void prestera_hw_build_tests(void)
 	BUILD_BUG_ON(sizeof(struct prestera_msg_rxtx_resp) != 12);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_resp) != 16);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_counter_resp) != 24);
+	BUILD_BUG_ON(sizeof(struct prestera_msg_rif_resp) != 12);
 	BUILD_BUG_ON(sizeof(struct prestera_msg_vr_resp) != 12);
 
 	/* check events */
@@ -1769,6 +1806,66 @@ int prestera_hw_bridge_port_delete(struct prestera_port *port, u16 bridge_id)
 			    &req.cmd, sizeof(req));
 }
 
+static int prestera_iface_to_msg(struct prestera_iface *iface,
+				 struct prestera_msg_iface *msg_if)
+{
+	switch (iface->type) {
+	case PRESTERA_IF_PORT_E:
+	case PRESTERA_IF_VID_E:
+		msg_if->port = __cpu_to_le32(iface->dev_port.port_num);
+		msg_if->dev = __cpu_to_le32(iface->dev_port.hw_dev_num);
+		break;
+	case PRESTERA_IF_LAG_E:
+		msg_if->lag_id = __cpu_to_le16(iface->lag_id);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	msg_if->vr_id = __cpu_to_le16(iface->vr_id);
+	msg_if->vid = __cpu_to_le16(iface->vlan_id);
+	msg_if->type = iface->type;
+	return 0;
+}
+
+int prestera_hw_rif_create(struct prestera_switch *sw,
+			   struct prestera_iface *iif, u8 *mac, u16 *rif_id)
+{
+	struct prestera_msg_rif_req req;
+	struct prestera_msg_rif_resp resp;
+	int err;
+
+	memcpy(req.mac, mac, ETH_ALEN);
+
+	err = prestera_iface_to_msg(iif, &req.iif);
+	if (err)
+		return err;
+
+	err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ROUTER_RIF_CREATE,
+			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+	if (err)
+		return err;
+
+	*rif_id = __le16_to_cpu(resp.rif_id);
+	return err;
+}
+
+int prestera_hw_rif_delete(struct prestera_switch *sw, u16 rif_id,
+			   struct prestera_iface *iif)
+{
+	struct prestera_msg_rif_req req = {
+		.rif_id = __cpu_to_le16(rif_id),
+	};
+	int err;
+
+	err = prestera_iface_to_msg(iif, &req.iif);
+	if (err)
+		return err;
+
+	return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_RIF_DELETE, &req.cmd,
+			    sizeof(req));
+}
+
 int prestera_hw_vr_create(struct prestera_switch *sw, u16 *vr_id)
 {
 	int err;
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.h b/drivers/net/ethernet/marvell/prestera/prestera_hw.h
index 6d9fafad451d..3ff12bae5909 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_hw.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.h
@@ -137,6 +137,7 @@ struct prestera_rxtx_params;
 struct prestera_acl_hw_action_info;
 struct prestera_acl_iface;
 struct prestera_counter_stats;
+struct prestera_iface;
 
 /* Switch API */
 int prestera_hw_switch_init(struct prestera_switch *sw);
@@ -238,6 +239,12 @@ int prestera_hw_span_bind(const struct prestera_port *port, u8 span_id);
 int prestera_hw_span_unbind(const struct prestera_port *port);
 int prestera_hw_span_release(struct prestera_switch *sw, u8 span_id);
 
+/* Router API */
+int prestera_hw_rif_create(struct prestera_switch *sw,
+			   struct prestera_iface *iif, u8 *mac, u16 *rif_id);
+int prestera_hw_rif_delete(struct prestera_switch *sw, u16 rif_id,
+			   struct prestera_iface *iif);
+
 /* Virtual Router API */
 int prestera_hw_vr_create(struct prestera_switch *sw, u16 *vr_id);
 int prestera_hw_vr_delete(struct prestera_switch *sw, u16 vr_id);
-- 
2.17.1