1/* SPDX-License-Identifier: GPL-2.0 */
  2/* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
  3 *
  4 */
  5
  6#ifndef AM65_CPSW_NUSS_H_
  7#define AM65_CPSW_NUSS_H_
  8
  9#include <linux/kernel.h>
 10#include <linux/module.h>
 11#include <linux/netdevice.h>
 12#include <linux/phy.h>
 13#include <linux/platform_device.h>
 14#include "am65-cpsw-qos.h"
 15
 16struct am65_cpts;
 17
 18#define HOST_PORT_NUM		0
 19
 20#define AM65_CPSW_MAX_TX_QUEUES	8
 21#define AM65_CPSW_MAX_RX_QUEUES	1
 22#define AM65_CPSW_MAX_RX_FLOWS	1
 23
 24struct am65_cpsw_slave_data {
 25	bool				mac_only;
 26	struct cpsw_sl			*mac_sl;
 27	struct device_node		*phy_node;
 28	struct phy_device		*phy;
 29	phy_interface_t			phy_if;
 30	struct phy			*ifphy;
 31	bool				rx_pause;
 32	bool				tx_pause;
 33	u8				mac_addr[ETH_ALEN];
 34};
 35
 36struct am65_cpsw_port {
 37	struct am65_cpsw_common		*common;
 38	struct net_device		*ndev;
 39	const char			*name;
 40	u32				port_id;
 41	void __iomem			*port_base;
 42	void __iomem			*stat_base;
 43	void __iomem			*fetch_ram_base;
 44	bool				disabled;
 45	struct am65_cpsw_slave_data	slave;
 46	bool				tx_ts_enabled;
 47	bool				rx_ts_enabled;
 48	struct am65_cpsw_qos		qos;
 49};
 50
 51struct am65_cpsw_host {
 52	struct am65_cpsw_common		*common;
 53	void __iomem			*port_base;
 54	void __iomem			*stat_base;
 55};
 56
 57struct am65_cpsw_tx_chn {
 58	struct napi_struct napi_tx;
 59	struct am65_cpsw_common	*common;
 60	struct k3_cppi_desc_pool *desc_pool;
 61	struct k3_udma_glue_tx_channel *tx_chn;
 62	int irq;
 63	u32 id;
 64	u32 descs_num;
 65	char tx_chn_name[128];
 66};
 67
 68struct am65_cpsw_rx_chn {
 69	struct device *dev;
 70	struct k3_cppi_desc_pool *desc_pool;
 71	struct k3_udma_glue_rx_channel *rx_chn;
 72	u32 descs_num;
 73	int irq;
 74};
 75
 76#define AM65_CPSW_QUIRK_I2027_NO_TX_CSUM BIT(0)
 77
 78struct am65_cpsw_pdata {
 79	u32	quirks;
 80};
 81
 82struct am65_cpsw_common {
 83	struct device		*dev;
 84	struct device		*mdio_dev;
 85	struct am65_cpsw_pdata	pdata;
 86
 87	void __iomem		*ss_base;
 88	void __iomem		*cpsw_base;
 89
 90	u32			port_num;
 91	struct am65_cpsw_host   host;
 92	struct am65_cpsw_port	*ports;
 93	u32			disabled_ports_mask;
 94
 95	int			usage_count; /* number of opened ports */
 96	struct cpsw_ale		*ale;
 97	int			tx_ch_num;
 98	u32			rx_flow_id_base;
 99
100	struct am65_cpsw_tx_chn	tx_chns[AM65_CPSW_MAX_TX_QUEUES];
101	struct completion	tdown_complete;
102	atomic_t		tdown_cnt;
103
104	struct am65_cpsw_rx_chn	rx_chns;
105	struct napi_struct	napi_rx;
106
107	u32			nuss_ver;
108	u32			cpsw_ver;
109	bool			pf_p0_rx_ptype_rrobin;
110	struct am65_cpts	*cpts;
111	int			est_enabled;
112};
113
114struct am65_cpsw_ndev_stats {
115	u64 tx_packets;
116	u64 tx_bytes;
117	u64 rx_packets;
118	u64 rx_bytes;
119	struct u64_stats_sync syncp;
120};
121
122struct am65_cpsw_ndev_priv {
123	u32			msg_enable;
124	struct am65_cpsw_port	*port;
125	struct am65_cpsw_ndev_stats __percpu *stats;
126};
127
128#define am65_ndev_to_priv(ndev) \
129	((struct am65_cpsw_ndev_priv *)netdev_priv(ndev))
130#define am65_ndev_to_port(ndev) (am65_ndev_to_priv(ndev)->port)
131#define am65_ndev_to_common(ndev) (am65_ndev_to_port(ndev)->common)
132#define am65_ndev_to_slave(ndev) (&am65_ndev_to_port(ndev)->slave)
133
134#define am65_common_get_host(common) (&(common)->host)
135#define am65_common_get_port(common, id) (&(common)->ports[(id) - 1])
136
137#define am65_cpsw_napi_to_common(pnapi) \
138	container_of(pnapi, struct am65_cpsw_common, napi_rx)
139#define am65_cpsw_napi_to_tx_chn(pnapi) \
140	container_of(pnapi, struct am65_cpsw_tx_chn, napi_tx)
141
142#define AM65_CPSW_DRV_NAME "am65-cpsw-nuss"
143
144#define AM65_CPSW_IS_CPSW2G(common) ((common)->port_num == 1)
145
146extern const struct ethtool_ops am65_cpsw_ethtool_ops_slave;
147
148void am65_cpsw_nuss_adjust_link(struct net_device *ndev);
149void am65_cpsw_nuss_set_p0_ptype(struct am65_cpsw_common *common);
150void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common);
151int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx);
152
153#endif /* AM65_CPSW_NUSS_H_ */