[PATCH net-next v3 01/10] octeontx2-af: switch: Add AF to switch mbox and skeleton files

[Ratheesh Kannoth <rkannoth@marvell.com>]

The Marvell switch hardware runs on a Linux OS. This OS receives
various messages, which are parsed to create flow rules that can be
installed on HW. The switch is capable of accelerating both L2 and
L3 flows.

This commit adds various mailbox messages used by the Linux OS
(on arm64) to send events to the switch hardware.

fdb messages:     Linux bridge FDB messages
fib messages:     Linux routing table messages
status messages:  Packet status updates sent to Host
                  Linux to keep flows active
                  for connection-tracked flows.

Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
---
 .../ethernet/marvell/octeontx2/af/Makefile    |  3 +-
 .../net/ethernet/marvell/octeontx2/af/mbox.h  | 95 +++++++++++++++++++
 .../marvell/octeontx2/af/switch/rvu_sw_fl.c   | 21 ++++
 .../marvell/octeontx2/af/switch/rvu_sw_fl.h   | 11 +++
 .../marvell/octeontx2/af/switch/rvu_sw_l2.c   | 14 +++
 .../marvell/octeontx2/af/switch/rvu_sw_l2.h   | 11 +++
 .../marvell/octeontx2/af/switch/rvu_sw_l3.c   | 14 +++
 .../marvell/octeontx2/af/switch/rvu_sw_l3.h   | 11 +++
 8 files changed, 179 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.c
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.h
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.c
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.h
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.c
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.h

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
index 244de500963e..7d9c4050dc32 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/Makefile
+++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
@@ -3,7 +3,7 @@
 # Makefile for Marvell's RVU Admin Function driver
 #
 
-ccflags-y += -I$(src)
+ccflags-y += -I$(src) -I$(src)/switch/
 obj-$(CONFIG_OCTEONTX2_MBOX) += rvu_mbox.o
 obj-$(CONFIG_OCTEONTX2_AF) += rvu_af.o
 
@@ -12,5 +12,6 @@ rvu_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o rvu_nix.o \
 		  rvu_reg.o rvu_npc.o rvu_debugfs.o ptp.o rvu_npc_fs.o \
 		  rvu_cpt.o rvu_devlink.o rpm.o rvu_cn10k.o rvu_switch.o \
 		  rvu_sdp.o rvu_npc_hash.o mcs.o mcs_rvu_if.o mcs_cnf10kb.o \
+		  switch/rvu_sw_l2.o switch/rvu_sw_l3.o switch/rvu_sw_fl.o\
 		  rvu_rep.o cn20k/mbox_init.o cn20k/nix.o cn20k/debugfs.o \
 		  cn20k/npa.o
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index a3e273126e4e..a439fe17580c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -156,6 +156,14 @@ M(PTP_GET_CAP,		0x00c, ptp_get_cap, msg_req, ptp_get_cap_rsp)	\
 M(GET_REP_CNT,		0x00d, get_rep_cnt, msg_req, get_rep_cnt_rsp)	\
 M(ESW_CFG,		0x00e, esw_cfg, esw_cfg_req, msg_rsp)	\
 M(REP_EVENT_NOTIFY,     0x00f, rep_event_notify, rep_event, msg_rsp) \
+M(FDB_NOTIFY,		0x010,  fdb_notify,				\
+				fdb_notify_req, msg_rsp)		\
+M(FIB_NOTIFY,		0x011,  fib_notify,				\
+				fib_notify_req, msg_rsp)		\
+M(FL_NOTIFY,		0x012,  fl_notify,				\
+				fl_notify_req, msg_rsp)		\
+M(FL_GET_STATS,		0x013,  fl_get_stats,				\
+				fl_get_stats_req, fl_get_stats_rsp)	\
 /* CGX mbox IDs (range 0x200 - 0x3FF) */				\
 M(CGX_START_RXTX,	0x200, cgx_start_rxtx, msg_req, msg_rsp)	\
 M(CGX_STOP_RXTX,	0x201, cgx_stop_rxtx, msg_req, msg_rsp)		\
@@ -1694,6 +1702,93 @@ struct rep_event {
 	struct rep_evt_data evt_data;
 };
 
+#define FDB_ADD  BIT_ULL(0)
+#define FDB_DEL	 BIT_ULL(1)
+#define FIB_CMD	 BIT_ULL(2)
+#define FL_ADD	 BIT_ULL(3)
+#define FL_DEL	 BIT_ULL(4)
+#define DP_ADD	 BIT_ULL(5)
+
+struct fdb_notify_req {
+	struct  mbox_msghdr hdr;
+	u64 flags;
+	u8  mac[ETH_ALEN];
+};
+
+struct fib_entry {
+	u64 cmd;
+	u64 gw_valid : 1;
+	u64 mac_valid : 1;
+	u64 vlan_valid: 1;
+	u64 host    : 1;
+	u64 bridge  : 1;
+	u16 vlan_tag;
+	u32 dst;
+	u32 dst_len;
+	u32 gw;
+	u16 port_id;
+	u8 nud_state;
+	u8 mac[ETH_ALEN];
+};
+
+struct fib_notify_req {
+	struct  mbox_msghdr hdr;
+	u16 cnt;
+	struct fib_entry entry[16];
+};
+
+struct fl_tuple {
+	__be32 ip4src;
+	__be32 m_ip4src;
+	__be32 ip4dst;
+	__be32 m_ip4dst;
+	__be16 sport;
+	__be16 m_sport;
+	__be16 dport;
+	__be16 m_dport;
+	__be16 eth_type;
+	__be16 m_eth_type;
+	u8 proto;
+	u8 smac[6];
+	u8 m_smac[6];
+	u8 dmac[6];
+	u8 m_dmac[6];
+	u64 is_xdev_br : 1;
+	u64 is_indev_br : 1;
+	u64 uni_di  : 1;
+	u16 in_pf;
+	u16 xmit_pf;
+	u64 features;
+	struct {				/* FLOW_ACTION_MANGLE */
+		u8		offset;
+		u8		type;
+		u32		mask;
+		u32		val;
+#define MANGLE_ARR_SZ 9
+	} mangle[MANGLE_ARR_SZ]; /* 2 for ETH, 1 for VLAN, 4 for IPv6, 2 for L4. */
+#define MANGLE_LAYER_CNT 4
+	u8 mangle_map[MANGLE_LAYER_CNT]; /* 1 for ETH,  1 for VLAN, 1 for L3, 1 for L4 */
+	u8 mangle_cnt;
+};
+
+struct fl_notify_req {
+	struct  mbox_msghdr hdr;
+	unsigned long cookie;
+	u64 flags;
+	u64 features;
+	struct fl_tuple tuple;
+};
+
+struct fl_get_stats_req {
+	struct  mbox_msghdr hdr;
+	unsigned long cookie;
+};
+
+struct fl_get_stats_rsp {
+	struct  mbox_msghdr hdr;
+	u64 pkts_diff;
+};
+
 struct flow_msg {
 	unsigned char dmac[6];
 	unsigned char smac[6];
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.c b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.c
new file mode 100644
index 000000000000..1f8b82a84a5d
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2026 Marvell.
+ *
+ */
+#include "rvu.h"
+
+int rvu_mbox_handler_fl_get_stats(struct rvu *rvu,
+				  struct fl_get_stats_req *req,
+				  struct fl_get_stats_rsp *rsp)
+{
+	return 0;
+}
+
+int rvu_mbox_handler_fl_notify(struct rvu *rvu,
+			       struct fl_notify_req *req,
+			       struct msg_rsp *rsp)
+{
+	return 0;
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.h b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.h
new file mode 100644
index 000000000000..cf3e5b884f77
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_fl.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2026 Marvell.
+ *
+ */
+
+#ifndef RVU_SW_FL_H
+#define RVU_SW_FL_H
+
+#endif
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.c b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.c
new file mode 100644
index 000000000000..5f805bfa81ed
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2026 Marvell.
+ *
+ */
+#include "rvu.h"
+
+int rvu_mbox_handler_fdb_notify(struct rvu *rvu,
+				struct fdb_notify_req *req,
+				struct msg_rsp *rsp)
+{
+	return 0;
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.h b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.h
new file mode 100644
index 000000000000..ff28612150c9
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l2.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2026 Marvell.
+ *
+ */
+
+#ifndef RVU_SW_L2_H
+#define RVU_SW_L2_H
+
+#endif
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.c b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.c
new file mode 100644
index 000000000000..2b798d5f0644
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2026 Marvell.
+ *
+ */
+#include "rvu.h"
+
+int rvu_mbox_handler_fib_notify(struct rvu *rvu,
+				struct fib_notify_req *req,
+				struct msg_rsp *rsp)
+{
+	return 0;
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.h b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.h
new file mode 100644
index 000000000000..ac8c4f9ba5ac
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/switch/rvu_sw_l3.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2026 Marvell.
+ *
+ */
+
+#ifndef RVU_SW_L3_H
+#define RVU_SW_L3_H
+
+#endif
-- 
2.43.0