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linux-7.2.3/drivers/net/ethernet/rocker/Kconfig

@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Rocker device configuration
+#
+
+config NET_VENDOR_ROCKER
+	bool "Rocker devices"
+	default y
+	help
+	  If you have a network device belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Rocker devices. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_ROCKER
+
+config ROCKER
+	tristate "Rocker switch driver (EXPERIMENTAL)"
+	depends on PCI && NET_SWITCHDEV && BRIDGE
+	select CRC32
+	help
+	  This driver supports Rocker switch device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rocker.
+
+endif # NET_VENDOR_ROCKER

linux-7.2.3/drivers/net/ethernet/rocker/Makefile

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the Rocker network device drivers.
+#
+
+obj-$(CONFIG_ROCKER) += rocker.o
+rocker-y := rocker_main.o rocker_tlv.o rocker_ofdpa.o

linux-7.2.3/drivers/net/ethernet/rocker/rocker.h

@@ -0,0 +1,142 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * drivers/net/ethernet/rocker/rocker.h - Rocker switch device driver
+ * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
+ * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
+ */
+
+#ifndef _ROCKER_H
+#define _ROCKER_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/notifier.h>
+#include <net/neighbour.h>
+#include <net/switchdev.h>
+
+#include "rocker_hw.h"
+
+struct rocker_desc_info {
+	char *data; /* mapped */
+	size_t data_size;
+	size_t tlv_size;
+	struct rocker_desc *desc;
+	dma_addr_t mapaddr;
+};
+
+struct rocker_dma_ring_info {
+	size_t size;
+	u32 head;
+	u32 tail;
+	struct rocker_desc *desc; /* mapped */
+	dma_addr_t mapaddr;
+	struct rocker_desc_info *desc_info;
+	unsigned int type;
+};
+
+struct rocker;
+
+struct rocker_port {
+	struct net_device *dev;
+	struct rocker *rocker;
+	void *wpriv;
+	unsigned int port_number;
+	u32 pport;
+	struct napi_struct napi_tx;
+	struct napi_struct napi_rx;
+	struct rocker_dma_ring_info tx_ring;
+	struct rocker_dma_ring_info rx_ring;
+};
+
+struct rocker_port *rocker_port_dev_lower_find(struct net_device *dev,
+					       struct rocker *rocker);
+
+struct rocker_world_ops;
+
+struct rocker {
+	struct pci_dev *pdev;
+	u8 __iomem *hw_addr;
+	struct msix_entry *msix_entries;
+	unsigned int port_count;
+	struct rocker_port **ports;
+	struct {
+		u64 id;
+	} hw;
+	spinlock_t cmd_ring_lock;		/* for cmd ring accesses */
+	struct rocker_dma_ring_info cmd_ring;
+	struct rocker_dma_ring_info event_ring;
+	struct notifier_block fib_nb;
+	struct rocker_world_ops *wops;
+	struct workqueue_struct *rocker_owq;
+	void *wpriv;
+};
+
+typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
+				    struct rocker_desc_info *desc_info,
+				    void *priv);
+
+typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
+				    const struct rocker_desc_info *desc_info,
+				    void *priv);
+
+int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait,
+		    rocker_cmd_prep_cb_t prepare, void *prepare_priv,
+		    rocker_cmd_proc_cb_t process, void *process_priv);
+
+int rocker_port_set_learning(struct rocker_port *rocker_port,
+			     bool learning);
+
+struct rocker_world_ops {
+	const char *kind;
+	size_t priv_size;
+	size_t port_priv_size;
+	u8 mode;
+	int (*init)(struct rocker *rocker);
+	void (*fini)(struct rocker *rocker);
+	int (*port_pre_init)(struct rocker_port *rocker_port);
+	int (*port_init)(struct rocker_port *rocker_port);
+	void (*port_fini)(struct rocker_port *rocker_port);
+	void (*port_post_fini)(struct rocker_port *rocker_port);
+	int (*port_open)(struct rocker_port *rocker_port);
+	void (*port_stop)(struct rocker_port *rocker_port);
+	int (*port_attr_stp_state_set)(struct rocker_port *rocker_port,
+				       u8 state);
+	int (*port_attr_bridge_flags_set)(struct rocker_port *rocker_port,
+					  unsigned long brport_flags);
+	int (*port_attr_bridge_flags_support_get)(const struct rocker_port *
+						  rocker_port,
+						  unsigned long *
+						  p_brport_flags);
+	int (*port_attr_bridge_ageing_time_set)(struct rocker_port *rocker_port,
+						u32 ageing_time);
+	int (*port_obj_vlan_add)(struct rocker_port *rocker_port,
+				 const struct switchdev_obj_port_vlan *vlan);
+	int (*port_obj_vlan_del)(struct rocker_port *rocker_port,
+				 const struct switchdev_obj_port_vlan *vlan);
+	int (*port_obj_fdb_add)(struct rocker_port *rocker_port,
+				u16 vid, const unsigned char *addr);
+	int (*port_obj_fdb_del)(struct rocker_port *rocker_port,
+				u16 vid, const unsigned char *addr);
+	int (*port_master_linked)(struct rocker_port *rocker_port,
+				  struct net_device *master,
+				  struct netlink_ext_ack *extack);
+	int (*port_master_unlinked)(struct rocker_port *rocker_port,
+				    struct net_device *master);
+	int (*port_neigh_update)(struct rocker_port *rocker_port,
+				 struct neighbour *n);
+	int (*port_neigh_destroy)(struct rocker_port *rocker_port,
+				  struct neighbour *n);
+	int (*port_ev_mac_vlan_seen)(struct rocker_port *rocker_port,
+				     const unsigned char *addr,
+				     __be16 vlan_id);
+	int (*fib4_add)(struct rocker *rocker,
+			const struct fib_entry_notifier_info *fen_info);
+	int (*fib4_del)(struct rocker *rocker,
+			const struct fib_entry_notifier_info *fen_info);
+	void (*fib4_abort)(struct rocker *rocker);
+};
+
+extern struct rocker_world_ops rocker_ofdpa_ops;
+
+#endif

linux-7.2.3/drivers/net/ethernet/rocker/rocker_hw.h

@@ -0,0 +1,462 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * drivers/net/ethernet/rocker/rocker_hw.h - Rocker switch device driver
+ * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
+ * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
+ */
+
+#ifndef _ROCKER_HW_H
+#define _ROCKER_HW_H
+
+#include <linux/types.h>
+
+/* Return codes */
+enum {
+	ROCKER_OK = 0,
+	ROCKER_ENOENT = 2,
+	ROCKER_ENXIO = 6,
+	ROCKER_ENOMEM = 12,
+	ROCKER_EEXIST = 17,
+	ROCKER_EINVAL = 22,
+	ROCKER_EMSGSIZE = 90,
+	ROCKER_ENOTSUP = 95,
+	ROCKER_ENOBUFS = 105,
+};
+
+#define ROCKER_FP_PORTS_MAX 62
+
+#define PCI_DEVICE_ID_REDHAT_ROCKER	0x0006
+
+#define ROCKER_PCI_BAR0_SIZE		0x2000
+
+/* MSI-X vectors */
+enum {
+	ROCKER_MSIX_VEC_CMD,
+	ROCKER_MSIX_VEC_EVENT,
+	ROCKER_MSIX_VEC_TEST,
+	ROCKER_MSIX_VEC_RESERVED0,
+	__ROCKER_MSIX_VEC_TX,
+	__ROCKER_MSIX_VEC_RX,
+#define ROCKER_MSIX_VEC_TX(port) \
+	(__ROCKER_MSIX_VEC_TX + ((port) * 2))
+#define ROCKER_MSIX_VEC_RX(port) \
+	(__ROCKER_MSIX_VEC_RX + ((port) * 2))
+#define ROCKER_MSIX_VEC_COUNT(portcnt) \
+	(ROCKER_MSIX_VEC_RX((portcnt - 1)) + 1)
+};
+
+/* Rocker bogus registers */
+#define ROCKER_BOGUS_REG0		0x0000
+#define ROCKER_BOGUS_REG1		0x0004
+#define ROCKER_BOGUS_REG2		0x0008
+#define ROCKER_BOGUS_REG3		0x000c
+
+/* Rocker test registers */
+#define ROCKER_TEST_REG			0x0010
+#define ROCKER_TEST_REG64		0x0018  /* 8-byte */
+#define ROCKER_TEST_IRQ			0x0020
+#define ROCKER_TEST_DMA_ADDR		0x0028  /* 8-byte */
+#define ROCKER_TEST_DMA_SIZE		0x0030
+#define ROCKER_TEST_DMA_CTRL		0x0034
+
+/* Rocker test register ctrl */
+#define ROCKER_TEST_DMA_CTRL_CLEAR	BIT(0)
+#define ROCKER_TEST_DMA_CTRL_FILL	BIT(1)
+#define ROCKER_TEST_DMA_CTRL_INVERT	BIT(2)
+
+/* Rocker DMA ring register offsets */
+#define ROCKER_DMA_DESC_ADDR(x)		(0x1000 + (x) * 32)  /* 8-byte */
+#define ROCKER_DMA_DESC_SIZE(x)		(0x1008 + (x) * 32)
+#define ROCKER_DMA_DESC_HEAD(x)		(0x100c + (x) * 32)
+#define ROCKER_DMA_DESC_TAIL(x)		(0x1010 + (x) * 32)
+#define ROCKER_DMA_DESC_CTRL(x)		(0x1014 + (x) * 32)
+#define ROCKER_DMA_DESC_CREDITS(x)	(0x1018 + (x) * 32)
+#define ROCKER_DMA_DESC_RES1(x)		(0x101c + (x) * 32)
+
+/* Rocker dma ctrl register bits */
+#define ROCKER_DMA_DESC_CTRL_RESET	BIT(0)
+
+/* Rocker DMA ring types */
+enum rocker_dma_type {
+	ROCKER_DMA_CMD,
+	ROCKER_DMA_EVENT,
+	__ROCKER_DMA_TX,
+	__ROCKER_DMA_RX,
+#define ROCKER_DMA_TX(port) (__ROCKER_DMA_TX + (port) * 2)
+#define ROCKER_DMA_RX(port) (__ROCKER_DMA_RX + (port) * 2)
+};
+
+/* Rocker DMA ring size limits and default sizes */
+#define ROCKER_DMA_SIZE_MIN		2ul
+#define ROCKER_DMA_SIZE_MAX		65536ul
+#define ROCKER_DMA_CMD_DEFAULT_SIZE	32ul
+#define ROCKER_DMA_EVENT_DEFAULT_SIZE	32ul
+#define ROCKER_DMA_TX_DEFAULT_SIZE	64ul
+#define ROCKER_DMA_TX_DESC_SIZE		256
+#define ROCKER_DMA_RX_DEFAULT_SIZE	64ul
+#define ROCKER_DMA_RX_DESC_SIZE		256
+
+/* Rocker DMA descriptor struct */
+struct rocker_desc {
+	u64 buf_addr;
+	u64 cookie;
+	u16 buf_size;
+	u16 tlv_size;
+	u16 resv[5];
+	u16 comp_err;
+};
+
+#define ROCKER_DMA_DESC_COMP_ERR_GEN	BIT(15)
+
+/* Rocker DMA TLV struct */
+struct rocker_tlv {
+	u32 type;
+	u16 len;
+};
+
+/* TLVs */
+enum {
+	ROCKER_TLV_CMD_UNSPEC,
+	ROCKER_TLV_CMD_TYPE,	/* u16 */
+	ROCKER_TLV_CMD_INFO,	/* nest */
+
+	__ROCKER_TLV_CMD_MAX,
+	ROCKER_TLV_CMD_MAX = __ROCKER_TLV_CMD_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_CMD_TYPE_UNSPEC,
+	ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS,
+	ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_GET_STATS,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL,
+	ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_GET_STATS,
+
+	ROCKER_TLV_CMD_TYPE_CLEAR_PORT_STATS,
+	ROCKER_TLV_CMD_TYPE_GET_PORT_STATS,
+
+	__ROCKER_TLV_CMD_TYPE_MAX,
+	ROCKER_TLV_CMD_TYPE_MAX = __ROCKER_TLV_CMD_TYPE_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_CMD_PORT_SETTINGS_UNSPEC,
+	ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,		/* u32 */
+	ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,		/* u32 */
+	ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,		/* u8 */
+	ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,		/* u8 */
+	ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,		/* binary */
+	ROCKER_TLV_CMD_PORT_SETTINGS_MODE,		/* u8 */
+	ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,		/* u8 */
+	ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME,		/* binary */
+	ROCKER_TLV_CMD_PORT_SETTINGS_MTU,		/* u16 */
+
+	__ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
+	ROCKER_TLV_CMD_PORT_SETTINGS_MAX =
+			__ROCKER_TLV_CMD_PORT_SETTINGS_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_CMD_PORT_STATS_UNSPEC,
+	ROCKER_TLV_CMD_PORT_STATS_PPORT,            /* u32 */
+
+	ROCKER_TLV_CMD_PORT_STATS_RX_PKTS,          /* u64 */
+	ROCKER_TLV_CMD_PORT_STATS_RX_BYTES,         /* u64 */
+	ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED,       /* u64 */
+	ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS,        /* u64 */
+
+	ROCKER_TLV_CMD_PORT_STATS_TX_PKTS,          /* u64 */
+	ROCKER_TLV_CMD_PORT_STATS_TX_BYTES,         /* u64 */
+	ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED,       /* u64 */
+	ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS,        /* u64 */
+
+	__ROCKER_TLV_CMD_PORT_STATS_MAX,
+	ROCKER_TLV_CMD_PORT_STATS_MAX = __ROCKER_TLV_CMD_PORT_STATS_MAX - 1,
+};
+
+enum rocker_port_mode {
+	ROCKER_PORT_MODE_OF_DPA,
+};
+
+enum {
+	ROCKER_TLV_EVENT_UNSPEC,
+	ROCKER_TLV_EVENT_TYPE,	/* u16 */
+	ROCKER_TLV_EVENT_INFO,	/* nest */
+
+	__ROCKER_TLV_EVENT_MAX,
+	ROCKER_TLV_EVENT_MAX = __ROCKER_TLV_EVENT_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_EVENT_TYPE_UNSPEC,
+	ROCKER_TLV_EVENT_TYPE_LINK_CHANGED,
+	ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN,
+
+	__ROCKER_TLV_EVENT_TYPE_MAX,
+	ROCKER_TLV_EVENT_TYPE_MAX = __ROCKER_TLV_EVENT_TYPE_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_EVENT_LINK_CHANGED_UNSPEC,
+	ROCKER_TLV_EVENT_LINK_CHANGED_PPORT,	/* u32 */
+	ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP,	/* u8 */
+
+	__ROCKER_TLV_EVENT_LINK_CHANGED_MAX,
+	ROCKER_TLV_EVENT_LINK_CHANGED_MAX =
+			__ROCKER_TLV_EVENT_LINK_CHANGED_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_EVENT_MAC_VLAN_UNSPEC,
+	ROCKER_TLV_EVENT_MAC_VLAN_PPORT,	/* u32 */
+	ROCKER_TLV_EVENT_MAC_VLAN_MAC,		/* binary */
+	ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID,	/* __be16 */
+
+	__ROCKER_TLV_EVENT_MAC_VLAN_MAX,
+	ROCKER_TLV_EVENT_MAC_VLAN_MAX = __ROCKER_TLV_EVENT_MAC_VLAN_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_RX_UNSPEC,
+	ROCKER_TLV_RX_FLAGS,		/* u16, see ROCKER_RX_FLAGS_ */
+	ROCKER_TLV_RX_CSUM,		/* u16 */
+	ROCKER_TLV_RX_FRAG_ADDR,	/* u64 */
+	ROCKER_TLV_RX_FRAG_MAX_LEN,	/* u16 */
+	ROCKER_TLV_RX_FRAG_LEN,		/* u16 */
+
+	__ROCKER_TLV_RX_MAX,
+	ROCKER_TLV_RX_MAX = __ROCKER_TLV_RX_MAX - 1,
+};
+
+#define ROCKER_RX_FLAGS_IPV4			BIT(0)
+#define ROCKER_RX_FLAGS_IPV6			BIT(1)
+#define ROCKER_RX_FLAGS_CSUM_CALC		BIT(2)
+#define ROCKER_RX_FLAGS_IPV4_CSUM_GOOD		BIT(3)
+#define ROCKER_RX_FLAGS_IP_FRAG			BIT(4)
+#define ROCKER_RX_FLAGS_TCP			BIT(5)
+#define ROCKER_RX_FLAGS_UDP			BIT(6)
+#define ROCKER_RX_FLAGS_TCP_UDP_CSUM_GOOD	BIT(7)
+#define ROCKER_RX_FLAGS_FWD_OFFLOAD		BIT(8)
+
+enum {
+	ROCKER_TLV_TX_UNSPEC,
+	ROCKER_TLV_TX_OFFLOAD,		/* u8, see ROCKER_TX_OFFLOAD_ */
+	ROCKER_TLV_TX_L3_CSUM_OFF,	/* u16 */
+	ROCKER_TLV_TX_TSO_MSS,		/* u16 */
+	ROCKER_TLV_TX_TSO_HDR_LEN,	/* u16 */
+	ROCKER_TLV_TX_FRAGS,		/* array */
+
+	__ROCKER_TLV_TX_MAX,
+	ROCKER_TLV_TX_MAX = __ROCKER_TLV_TX_MAX - 1,
+};
+
+#define ROCKER_TX_OFFLOAD_NONE		0
+#define ROCKER_TX_OFFLOAD_IP_CSUM	1
+#define ROCKER_TX_OFFLOAD_TCP_UDP_CSUM	2
+#define ROCKER_TX_OFFLOAD_L3_CSUM	3
+#define ROCKER_TX_OFFLOAD_TSO		4
+
+#define ROCKER_TX_FRAGS_MAX		16
+
+enum {
+	ROCKER_TLV_TX_FRAG_UNSPEC,
+	ROCKER_TLV_TX_FRAG,		/* nest */
+
+	__ROCKER_TLV_TX_FRAG_MAX,
+	ROCKER_TLV_TX_FRAG_MAX = __ROCKER_TLV_TX_FRAG_MAX - 1,
+};
+
+enum {
+	ROCKER_TLV_TX_FRAG_ATTR_UNSPEC,
+	ROCKER_TLV_TX_FRAG_ATTR_ADDR,	/* u64 */
+	ROCKER_TLV_TX_FRAG_ATTR_LEN,	/* u16 */
+
+	__ROCKER_TLV_TX_FRAG_ATTR_MAX,
+	ROCKER_TLV_TX_FRAG_ATTR_MAX = __ROCKER_TLV_TX_FRAG_ATTR_MAX - 1,
+};
+
+/* cmd info nested for OF-DPA msgs */
+enum {
+	ROCKER_TLV_OF_DPA_UNSPEC,
+	ROCKER_TLV_OF_DPA_TABLE_ID,		/* u16 */
+	ROCKER_TLV_OF_DPA_PRIORITY,		/* u32 */
+	ROCKER_TLV_OF_DPA_HARDTIME,		/* u32 */
+	ROCKER_TLV_OF_DPA_IDLETIME,		/* u32 */
+	ROCKER_TLV_OF_DPA_COOKIE,		/* u64 */
+	ROCKER_TLV_OF_DPA_IN_PPORT,		/* u32 */
+	ROCKER_TLV_OF_DPA_IN_PPORT_MASK,	/* u32 */
+	ROCKER_TLV_OF_DPA_OUT_PPORT,		/* u32 */
+	ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,	/* u16 */
+	ROCKER_TLV_OF_DPA_GROUP_ID,		/* u32 */
+	ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,	/* u32 */
+	ROCKER_TLV_OF_DPA_GROUP_COUNT,		/* u16 */
+	ROCKER_TLV_OF_DPA_GROUP_IDS,		/* u32 array */
+	ROCKER_TLV_OF_DPA_VLAN_ID,		/* __be16 */
+	ROCKER_TLV_OF_DPA_VLAN_ID_MASK,		/* __be16 */
+	ROCKER_TLV_OF_DPA_VLAN_PCP,		/* __be16 */
+	ROCKER_TLV_OF_DPA_VLAN_PCP_MASK,	/* __be16 */
+	ROCKER_TLV_OF_DPA_VLAN_PCP_ACTION,	/* u8 */
+	ROCKER_TLV_OF_DPA_NEW_VLAN_ID,		/* __be16 */
+	ROCKER_TLV_OF_DPA_NEW_VLAN_PCP,		/* u8 */
+	ROCKER_TLV_OF_DPA_TUNNEL_ID,		/* u32 */
+	ROCKER_TLV_OF_DPA_TUNNEL_LPORT,		/* u32 */
+	ROCKER_TLV_OF_DPA_ETHERTYPE,		/* __be16 */
+	ROCKER_TLV_OF_DPA_DST_MAC,		/* binary */
+	ROCKER_TLV_OF_DPA_DST_MAC_MASK,		/* binary */
+	ROCKER_TLV_OF_DPA_SRC_MAC,		/* binary */
+	ROCKER_TLV_OF_DPA_SRC_MAC_MASK,		/* binary */
+	ROCKER_TLV_OF_DPA_IP_PROTO,		/* u8 */
+	ROCKER_TLV_OF_DPA_IP_PROTO_MASK,	/* u8 */
+	ROCKER_TLV_OF_DPA_IP_DSCP,		/* u8 */
+	ROCKER_TLV_OF_DPA_IP_DSCP_MASK,		/* u8 */
+	ROCKER_TLV_OF_DPA_IP_DSCP_ACTION,	/* u8 */
+	ROCKER_TLV_OF_DPA_NEW_IP_DSCP,		/* u8 */
+	ROCKER_TLV_OF_DPA_IP_ECN,		/* u8 */
+	ROCKER_TLV_OF_DPA_IP_ECN_MASK,		/* u8 */
+	ROCKER_TLV_OF_DPA_DST_IP,		/* __be32 */
+	ROCKER_TLV_OF_DPA_DST_IP_MASK,		/* __be32 */
+	ROCKER_TLV_OF_DPA_SRC_IP,		/* __be32 */
+	ROCKER_TLV_OF_DPA_SRC_IP_MASK,		/* __be32 */
+	ROCKER_TLV_OF_DPA_DST_IPV6,		/* binary */
+	ROCKER_TLV_OF_DPA_DST_IPV6_MASK,	/* binary */
+	ROCKER_TLV_OF_DPA_SRC_IPV6,		/* binary */
+	ROCKER_TLV_OF_DPA_SRC_IPV6_MASK,	/* binary */
+	ROCKER_TLV_OF_DPA_SRC_ARP_IP,		/* __be32 */
+	ROCKER_TLV_OF_DPA_SRC_ARP_IP_MASK,	/* __be32 */
+	ROCKER_TLV_OF_DPA_L4_DST_PORT,		/* __be16 */
+	ROCKER_TLV_OF_DPA_L4_DST_PORT_MASK,	/* __be16 */
+	ROCKER_TLV_OF_DPA_L4_SRC_PORT,		/* __be16 */
+	ROCKER_TLV_OF_DPA_L4_SRC_PORT_MASK,	/* __be16 */
+	ROCKER_TLV_OF_DPA_ICMP_TYPE,		/* u8 */
+	ROCKER_TLV_OF_DPA_ICMP_TYPE_MASK,	/* u8 */
+	ROCKER_TLV_OF_DPA_ICMP_CODE,		/* u8 */
+	ROCKER_TLV_OF_DPA_ICMP_CODE_MASK,	/* u8 */
+	ROCKER_TLV_OF_DPA_IPV6_LABEL,		/* __be32 */
+	ROCKER_TLV_OF_DPA_IPV6_LABEL_MASK,	/* __be32 */
+	ROCKER_TLV_OF_DPA_QUEUE_ID_ACTION,	/* u8 */
+	ROCKER_TLV_OF_DPA_NEW_QUEUE_ID,		/* u8 */
+	ROCKER_TLV_OF_DPA_CLEAR_ACTIONS,	/* u32 */
+	ROCKER_TLV_OF_DPA_POP_VLAN,		/* u8 */
+	ROCKER_TLV_OF_DPA_TTL_CHECK,		/* u8 */
+	ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,	/* u8 */
+
+	__ROCKER_TLV_OF_DPA_MAX,
+	ROCKER_TLV_OF_DPA_MAX = __ROCKER_TLV_OF_DPA_MAX - 1,
+};
+
+/* OF-DPA table IDs */
+
+enum rocker_of_dpa_table_id {
+	ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT = 0,
+	ROCKER_OF_DPA_TABLE_ID_VLAN = 10,
+	ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC = 20,
+	ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING = 30,
+	ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING = 40,
+	ROCKER_OF_DPA_TABLE_ID_BRIDGING = 50,
+	ROCKER_OF_DPA_TABLE_ID_ACL_POLICY = 60,
+};
+
+/* OF-DPA flow stats */
+enum {
+	ROCKER_TLV_OF_DPA_FLOW_STAT_UNSPEC,
+	ROCKER_TLV_OF_DPA_FLOW_STAT_DURATION,	/* u32 */
+	ROCKER_TLV_OF_DPA_FLOW_STAT_RX_PKTS,	/* u64 */
+	ROCKER_TLV_OF_DPA_FLOW_STAT_TX_PKTS,	/* u64 */
+
+	__ROCKER_TLV_OF_DPA_FLOW_STAT_MAX,
+	ROCKER_TLV_OF_DPA_FLOW_STAT_MAX = __ROCKER_TLV_OF_DPA_FLOW_STAT_MAX - 1,
+};
+
+/* OF-DPA group types */
+enum rocker_of_dpa_group_type {
+	ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE = 0,
+	ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE,
+	ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST,
+	ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST,
+	ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD,
+	ROCKER_OF_DPA_GROUP_TYPE_L3_INTERFACE,
+	ROCKER_OF_DPA_GROUP_TYPE_L3_MCAST,
+	ROCKER_OF_DPA_GROUP_TYPE_L3_ECMP,
+	ROCKER_OF_DPA_GROUP_TYPE_L2_OVERLAY,
+};
+
+/* OF-DPA group L2 overlay types */
+enum rocker_of_dpa_overlay_type {
+	ROCKER_OF_DPA_OVERLAY_TYPE_FLOOD_UCAST = 0,
+	ROCKER_OF_DPA_OVERLAY_TYPE_FLOOD_MCAST,
+	ROCKER_OF_DPA_OVERLAY_TYPE_MCAST_UCAST,
+	ROCKER_OF_DPA_OVERLAY_TYPE_MCAST_MCAST,
+};
+
+/* OF-DPA group ID encoding */
+#define ROCKER_GROUP_TYPE_SHIFT 28
+#define ROCKER_GROUP_TYPE_MASK 0xf0000000
+#define ROCKER_GROUP_VLAN_SHIFT 16
+#define ROCKER_GROUP_VLAN_MASK 0x0fff0000
+#define ROCKER_GROUP_PORT_SHIFT 0
+#define ROCKER_GROUP_PORT_MASK 0x0000ffff
+#define ROCKER_GROUP_TUNNEL_ID_SHIFT 12
+#define ROCKER_GROUP_TUNNEL_ID_MASK 0x0ffff000
+#define ROCKER_GROUP_SUBTYPE_SHIFT 10
+#define ROCKER_GROUP_SUBTYPE_MASK 0x00000c00
+#define ROCKER_GROUP_INDEX_SHIFT 0
+#define ROCKER_GROUP_INDEX_MASK 0x0000ffff
+#define ROCKER_GROUP_INDEX_LONG_SHIFT 0
+#define ROCKER_GROUP_INDEX_LONG_MASK 0x0fffffff
+
+#define ROCKER_GROUP_TYPE_GET(group_id) \
+	(((group_id) & ROCKER_GROUP_TYPE_MASK) >> ROCKER_GROUP_TYPE_SHIFT)
+#define ROCKER_GROUP_TYPE_SET(type) \
+	(((type) << ROCKER_GROUP_TYPE_SHIFT) & ROCKER_GROUP_TYPE_MASK)
+#define ROCKER_GROUP_VLAN_GET(group_id) \
+	(((group_id) & ROCKER_GROUP_VLAN_ID_MASK) >> ROCKER_GROUP_VLAN_ID_SHIFT)
+#define ROCKER_GROUP_VLAN_SET(vlan_id) \
+	(((vlan_id) << ROCKER_GROUP_VLAN_SHIFT) & ROCKER_GROUP_VLAN_MASK)
+#define ROCKER_GROUP_PORT_GET(group_id) \
+	(((group_id) & ROCKER_GROUP_PORT_MASK) >> ROCKER_GROUP_PORT_SHIFT)
+#define ROCKER_GROUP_PORT_SET(port) \
+	(((port) << ROCKER_GROUP_PORT_SHIFT) & ROCKER_GROUP_PORT_MASK)
+#define ROCKER_GROUP_INDEX_GET(group_id) \
+	(((group_id) & ROCKER_GROUP_INDEX_MASK) >> ROCKER_GROUP_INDEX_SHIFT)
+#define ROCKER_GROUP_INDEX_SET(index) \
+	(((index) << ROCKER_GROUP_INDEX_SHIFT) & ROCKER_GROUP_INDEX_MASK)
+#define ROCKER_GROUP_INDEX_LONG_GET(group_id) \
+	(((group_id) & ROCKER_GROUP_INDEX_LONG_MASK) >> \
+	 ROCKER_GROUP_INDEX_LONG_SHIFT)
+#define ROCKER_GROUP_INDEX_LONG_SET(index) \
+	(((index) << ROCKER_GROUP_INDEX_LONG_SHIFT) & \
+	 ROCKER_GROUP_INDEX_LONG_MASK)
+
+#define ROCKER_GROUP_NONE 0
+#define ROCKER_GROUP_L2_INTERFACE(vlan_id, port) \
+	(ROCKER_GROUP_TYPE_SET(ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE) |\
+	 ROCKER_GROUP_VLAN_SET(ntohs(vlan_id)) | ROCKER_GROUP_PORT_SET(port))
+#define ROCKER_GROUP_L2_REWRITE(index) \
+	(ROCKER_GROUP_TYPE_SET(ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE) |\
+	 ROCKER_GROUP_INDEX_LONG_SET(index))
+#define ROCKER_GROUP_L2_MCAST(vlan_id, index) \
+	(ROCKER_GROUP_TYPE_SET(ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST) |\
+	 ROCKER_GROUP_VLAN_SET(ntohs(vlan_id)) | ROCKER_GROUP_INDEX_SET(index))
+#define ROCKER_GROUP_L2_FLOOD(vlan_id, index) \
+	(ROCKER_GROUP_TYPE_SET(ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD) |\
+	ROCKER_GROUP_VLAN_SET(ntohs(vlan_id)) | ROCKER_GROUP_INDEX_SET(index))
+#define ROCKER_GROUP_L3_UNICAST(index) \
+	(ROCKER_GROUP_TYPE_SET(ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST) |\
+	 ROCKER_GROUP_INDEX_LONG_SET(index))
+
+/* Rocker general purpose registers */
+#define ROCKER_CONTROL			0x0300
+#define ROCKER_PORT_PHYS_COUNT		0x0304
+#define ROCKER_PORT_PHYS_LINK_STATUS	0x0310 /* 8-byte */
+#define ROCKER_PORT_PHYS_ENABLE		0x0318 /* 8-byte */
+#define ROCKER_SWITCH_ID		0x0320 /* 8-byte */
+
+/* Rocker control bits */
+#define ROCKER_CONTROL_RESET		BIT(0)
+
+#endif

linux-7.2.3/drivers/net/ethernet/rocker/rocker_tlv.c

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * drivers/net/ethernet/rocker/rocker_tlv.c - Rocker switch device driver
+ * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
+ * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+
+#include "rocker_hw.h"
+#include "rocker_tlv.h"
+
+void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
+		      const char *buf, int buf_len)
+{
+	const struct rocker_tlv *tlv;
+	const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
+	int rem;
+
+	memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
+
+	rocker_tlv_for_each(tlv, head, buf_len, rem) {
+		u32 type = rocker_tlv_type(tlv);
+
+		if (type > 0 && type <= maxtype)
+			tb[type] = tlv;
+	}
+}
+
+int rocker_tlv_put(struct rocker_desc_info *desc_info,
+		   int attrtype, int attrlen, const void *data)
+{
+	int tail_room = desc_info->data_size - desc_info->tlv_size;
+	int total_size = rocker_tlv_total_size(attrlen);
+	struct rocker_tlv *tlv;
+
+	if (unlikely(tail_room < total_size))
+		return -EMSGSIZE;
+
+	tlv = rocker_tlv_start(desc_info);
+	desc_info->tlv_size += total_size;
+	tlv->type = attrtype;
+	tlv->len = rocker_tlv_attr_size(attrlen);
+	memcpy(rocker_tlv_data(tlv), data, attrlen);
+	memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/rocker/rocker_tlv.h

@@ -0,0 +1,209 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * drivers/net/ethernet/rocker/rocker_tlv.h - Rocker switch device driver
+ * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
+ * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
+ */
+
+#ifndef _ROCKER_TLV_H
+#define _ROCKER_TLV_H
+
+#include <linux/types.h>
+
+#include "rocker_hw.h"
+#include "rocker.h"
+
+#define ROCKER_TLV_ALIGNTO 8U
+#define ROCKER_TLV_ALIGN(len) \
+	(((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
+#define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
+
+/*  <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
+ * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
+ * |             Header          | Pad |           Payload           | Pad |
+ * |      (struct rocker_tlv)    | ing |                             | ing |
+ * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
+ *  <--------------------------- tlv->len -------------------------->
+ */
+
+static inline struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
+						 int *remaining)
+{
+	int totlen = ROCKER_TLV_ALIGN(tlv->len);
+
+	*remaining -= totlen;
+	return (struct rocker_tlv *) ((char *) tlv + totlen);
+}
+
+static inline int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
+{
+	return remaining >= (int) ROCKER_TLV_HDRLEN &&
+	       tlv->len >= ROCKER_TLV_HDRLEN &&
+	       tlv->len <= remaining;
+}
+
+#define rocker_tlv_for_each(pos, head, len, rem)	\
+	for (pos = head, rem = len;			\
+	     rocker_tlv_ok(pos, rem);			\
+	     pos = rocker_tlv_next(pos, &(rem)))
+
+#define rocker_tlv_for_each_nested(pos, tlv, rem)	\
+	rocker_tlv_for_each(pos, rocker_tlv_data(tlv),	\
+			    rocker_tlv_len(tlv), rem)
+
+static inline int rocker_tlv_attr_size(int payload)
+{
+	return ROCKER_TLV_HDRLEN + payload;
+}
+
+static inline int rocker_tlv_total_size(int payload)
+{
+	return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
+}
+
+static inline int rocker_tlv_padlen(int payload)
+{
+	return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
+}
+
+static inline int rocker_tlv_type(const struct rocker_tlv *tlv)
+{
+	return tlv->type;
+}
+
+static inline void *rocker_tlv_data(const struct rocker_tlv *tlv)
+{
+	return (char *) tlv + ROCKER_TLV_HDRLEN;
+}
+
+static inline int rocker_tlv_len(const struct rocker_tlv *tlv)
+{
+	return tlv->len - ROCKER_TLV_HDRLEN;
+}
+
+static inline u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
+{
+	return *(u8 *) rocker_tlv_data(tlv);
+}
+
+static inline u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
+{
+	return *(u16 *) rocker_tlv_data(tlv);
+}
+
+static inline __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
+{
+	return *(__be16 *) rocker_tlv_data(tlv);
+}
+
+static inline u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
+{
+	return *(u32 *) rocker_tlv_data(tlv);
+}
+
+static inline u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
+{
+	return *(u64 *) rocker_tlv_data(tlv);
+}
+
+void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
+		      const char *buf, int buf_len);
+
+static inline void rocker_tlv_parse_nested(const struct rocker_tlv **tb,
+					   int maxtype,
+					   const struct rocker_tlv *tlv)
+{
+	rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
+			 rocker_tlv_len(tlv));
+}
+
+static inline void
+rocker_tlv_parse_desc(const struct rocker_tlv **tb, int maxtype,
+		      const struct rocker_desc_info *desc_info)
+{
+	rocker_tlv_parse(tb, maxtype, desc_info->data,
+			 desc_info->desc->tlv_size);
+}
+
+static inline struct rocker_tlv *
+rocker_tlv_start(struct rocker_desc_info *desc_info)
+{
+	return (struct rocker_tlv *) ((char *) desc_info->data +
+					       desc_info->tlv_size);
+}
+
+int rocker_tlv_put(struct rocker_desc_info *desc_info,
+		   int attrtype, int attrlen, const void *data);
+
+static inline int
+rocker_tlv_put_u8(struct rocker_desc_info *desc_info, int attrtype, u8 value)
+{
+	u8 tmp = value; /* work around GCC PR81715 */
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &tmp);
+}
+
+static inline int
+rocker_tlv_put_u16(struct rocker_desc_info *desc_info, int attrtype, u16 value)
+{
+	u16 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &tmp);
+}
+
+static inline int
+rocker_tlv_put_be16(struct rocker_desc_info *desc_info, int attrtype, __be16 value)
+{
+	__be16 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &tmp);
+}
+
+static inline int
+rocker_tlv_put_u32(struct rocker_desc_info *desc_info, int attrtype, u32 value)
+{
+	u32 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &tmp);
+}
+
+static inline int
+rocker_tlv_put_be32(struct rocker_desc_info *desc_info, int attrtype, __be32 value)
+{
+	__be32 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &tmp);
+}
+
+static inline int
+rocker_tlv_put_u64(struct rocker_desc_info *desc_info, int attrtype, u64 value)
+{
+	u64 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &tmp);
+}
+
+static inline struct rocker_tlv *
+rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
+{
+	struct rocker_tlv *start = rocker_tlv_start(desc_info);
+
+	if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
+		return NULL;
+
+	return start;
+}
+
+static inline void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
+				       struct rocker_tlv *start)
+{
+	start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
+}
+
+static inline void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
+					  const struct rocker_tlv *start)
+{
+	desc_info->tlv_size = (const char *) start - desc_info->data;
+}
+
+#endif