drivers/net/ethernet/stmicro/stmmac/stmmac.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*******************************************************************************
   Copyright (C) 2007-2009  STMicroelectronics Ltd


   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/

 #ifndef __STMMAC_H__
 #define __STMMAC_H__

 #define STMMAC_RESOURCE_NAME   "stmmaceth"
 #define DRV_MODULE_VERSION	"Jan_2016"

 #include <linux/clk.h>
 #include <linux/hrtimer.h>
 #include <linux/if_vlan.h>
 #include <linux/stmmac.h>
 #include <linux/phylink.h>
 #include <linux/pci.h>
 #include "common.h"
 #include <linux/ptp_clock_kernel.h>
 #include <linux/net_tstamp.h>
 #include <linux/reset.h>
 #include <net/page_pool.h>

 struct stmmac_resources {
 	void __iomem *addr;
 	const char *mac;
 	int wol_irq;
 	int lpi_irq;
 	int irq;
 };

 struct stmmac_tx_info {
 	dma_addr_t buf;
 	bool map_as_page;
 	unsigned len;
 	bool last_segment;
 	bool is_jumbo;
 };

 #define STMMAC_TBS_AVAIL	BIT(0)
 #define STMMAC_TBS_EN		BIT(1)

 /* Frequently used values are kept adjacent for cache effect */
 struct stmmac_tx_queue {
 	u32 tx_count_frames;
 	int tbs;
 	struct hrtimer txtimer;
 	u32 queue_index;
 	struct stmmac_priv *priv_data;
 	struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp;
 	struct dma_edesc *dma_entx;
 	struct dma_desc *dma_tx;
 	struct sk_buff **tx_skbuff;
 	struct stmmac_tx_info *tx_skbuff_dma;
 	unsigned int cur_tx;
 	unsigned int dirty_tx;
 	dma_addr_t dma_tx_phy;
 	u32 tx_tail_addr;
 	u32 mss;
 };

 struct stmmac_rx_buffer {
 	struct page *page;
 	struct page *sec_page;
 	dma_addr_t addr;
 	dma_addr_t sec_addr;
 };

 struct stmmac_rx_queue {
 	u32 rx_count_frames;
 	u32 queue_index;
 	struct page_pool *page_pool;
 	struct stmmac_rx_buffer *buf_pool;
 	struct stmmac_priv *priv_data;
 	struct dma_extended_desc *dma_erx;
 	struct dma_desc *dma_rx ____cacheline_aligned_in_smp;
 	unsigned int cur_rx;
 	unsigned int dirty_rx;
 	u32 rx_zeroc_thresh;
 	dma_addr_t dma_rx_phy;
 	u32 rx_tail_addr;
 	unsigned int state_saved;
 	struct {
 		struct sk_buff *skb;
 		unsigned int len;
 		unsigned int error;
 	} state;
 };

 struct stmmac_channel {
 	struct napi_struct rx_napi ____cacheline_aligned_in_smp;
 	struct napi_struct tx_napi ____cacheline_aligned_in_smp;
 	struct stmmac_priv *priv_data;
 	spinlock_t lock;
 	u32 index;
 };

 struct stmmac_tc_entry {
 	bool in_use;
 	bool in_hw;
 	bool is_last;
 	bool is_frag;
 	void *frag_ptr;
 	unsigned int table_pos;
 	u32 handle;
 	u32 prio;
 	struct {
 		u32 match_data;
 		u32 match_en;
 		u8 af:1;
 		u8 rf:1;
 		u8 im:1;
 		u8 nc:1;
 		u8 res1:4;
 		u8 frame_offset;
 		u8 ok_index;
 		u8 dma_ch_no;
 		u32 res2;
 	} __packed val;
 };

 #define STMMAC_PPS_MAX		4
 struct stmmac_pps_cfg {
 	bool available;
 	struct timespec64 start;
 	struct timespec64 period;
 };

 struct stmmac_rss {
 	int enable;
 	u8 key[STMMAC_RSS_HASH_KEY_SIZE];
 	u32 table[STMMAC_RSS_MAX_TABLE_SIZE];
 };

 #define STMMAC_FLOW_ACTION_DROP		BIT(0)
 struct stmmac_flow_entry {
 	unsigned long cookie;
 	unsigned long action;
 	u8 ip_proto;
 	int in_use;
 	int idx;
 	int is_l4;
 };

 struct stmmac_priv {
 	/* Frequently used values are kept adjacent for cache effect */
 	u32 tx_coal_frames;
 	u32 tx_coal_timer;
 	u32 rx_coal_frames;

 	int tx_coalesce;
 	int hwts_tx_en;
 	bool tx_path_in_lpi_mode;
 	bool tso;
 	int sph;
 	u32 sarc_type;

 	unsigned int dma_buf_sz;
 	unsigned int rx_copybreak;
 	u32 rx_riwt;
 	int hwts_rx_en;

 	void __iomem *ioaddr;
 	struct net_device *dev;
 	struct device *device;
 	struct mac_device_info *hw;
 	int (*hwif_quirks)(struct stmmac_priv *priv);
 	struct mutex lock;

 	/* RX Queue */
 	struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES];
 	unsigned int dma_rx_size;

 	/* TX Queue */
 	struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES];
 	unsigned int dma_tx_size;

 	/* Generic channel for NAPI */
 	struct stmmac_channel channel[STMMAC_CH_MAX];

 	int speed;
 	unsigned int flow_ctrl;
 	unsigned int pause;
 	struct mii_bus *mii;
 	int mii_irq[PHY_MAX_ADDR];

 	struct phylink_config phylink_config;
 	struct phylink *phylink;

 	struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp;
 	struct stmmac_safety_stats sstats;
 	struct plat_stmmacenet_data *plat;
 	struct dma_features dma_cap;
 	struct stmmac_counters mmc;
 	int hw_cap_support;
 	int synopsys_id;
 	u32 msg_enable;
 	int wolopts;
 	int wol_irq;
 	int clk_csr;
 	struct timer_list eee_ctrl_timer;
 	int lpi_irq;
 	int eee_enabled;
 	int eee_active;
 	int tx_lpi_timer;
 	int tx_lpi_enabled;
 	int eee_tw_timer;
 	bool eee_sw_timer_en;
 	unsigned int mode;
 	unsigned int chain_mode;
 	int extend_desc;
 	struct hwtstamp_config tstamp_config;
 	struct ptp_clock *ptp_clock;
 	struct ptp_clock_info ptp_clock_ops;
 	unsigned int default_addend;
 	u32 sub_second_inc;
 	u32 systime_flags;
 	u32 adv_ts;
 	int use_riwt;
 	int irq_wake;
 	spinlock_t ptp_lock;
 	void __iomem *mmcaddr;
 	void __iomem *ptpaddr;
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];

 #ifdef CONFIG_DEBUG_FS
 	struct dentry *dbgfs_dir;
 #endif

 	unsigned long state;
 	struct workqueue_struct *wq;
 	struct work_struct service_task;

 	/* TC Handling */
 	unsigned int tc_entries_max;
 	unsigned int tc_off_max;
 	struct stmmac_tc_entry *tc_entries;
 	unsigned int flow_entries_max;
 	struct stmmac_flow_entry *flow_entries;

 	/* Pulse Per Second output */
 	struct stmmac_pps_cfg pps[STMMAC_PPS_MAX];

 	/* Receive Side Scaling */
 	struct stmmac_rss rss;
 };

 enum stmmac_state {
 	STMMAC_DOWN,
 	STMMAC_RESET_REQUESTED,
 	STMMAC_RESETING,
 	STMMAC_SERVICE_SCHED,
 };

 int stmmac_mdio_unregister(struct net_device *ndev);
 int stmmac_mdio_register(struct net_device *ndev);
 int stmmac_mdio_reset(struct mii_bus *mii);
 void stmmac_set_ethtool_ops(struct net_device *netdev);

 void stmmac_ptp_register(struct stmmac_priv *priv);
 void stmmac_ptp_unregister(struct stmmac_priv *priv);
 int stmmac_resume(struct device *dev);
 int stmmac_suspend(struct device *dev);
 int stmmac_dvr_remove(struct device *dev);
 int stmmac_dvr_probe(struct device *device,
 		     struct plat_stmmacenet_data *plat_dat,
 		     struct stmmac_resources *res);
 void stmmac_disable_eee_mode(struct stmmac_priv *priv);
 bool stmmac_eee_init(struct stmmac_priv *priv);
 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt);
 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);

 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)
 void stmmac_selftest_run(struct net_device *dev,
 			 struct ethtool_test *etest, u64 *buf);
 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data);
 int stmmac_selftest_get_count(struct stmmac_priv *priv);
 #else
 static inline void stmmac_selftest_run(struct net_device *dev,
 				       struct ethtool_test *etest, u64 *buf)
 {
 	/* Not enabled */
 }
 static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv,
 					       u8 *data)
 {
 	/* Not enabled */
 }
 static inline int stmmac_selftest_get_count(struct stmmac_priv *priv)
 {
 	return -EOPNOTSUPP;
 }
 #endif /* CONFIG_STMMAC_SELFTESTS */

 #endif /* __STMMAC_H__ */
	/* SPDX-License-Identifier: GPL-2.0-only */
	/*******************************************************************************
	Copyright (C) 2007-2009 STMicroelectronics Ltd


	Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
	*******************************************************************************/

	#ifndef __STMMAC_H__
	#define __STMMAC_H__

	#define STMMAC_RESOURCE_NAME "stmmaceth"
	#define DRV_MODULE_VERSION "Jan_2016"

	#include <linux/clk.h>
	#include <linux/hrtimer.h>
	#include <linux/if_vlan.h>
	#include <linux/stmmac.h>
	#include <linux/phylink.h>
	#include <linux/pci.h>
	#include "common.h"
	#include <linux/ptp_clock_kernel.h>
	#include <linux/net_tstamp.h>
	#include <linux/reset.h>
	#include <net/page_pool.h>

	struct stmmac_resources {
	void __iomem *addr;
	const char *mac;
	int wol_irq;
	int lpi_irq;
	int irq;
	};

	struct stmmac_tx_info {
	dma_addr_t buf;
	bool map_as_page;
	unsigned len;
	bool last_segment;
	bool is_jumbo;
	};

	#define STMMAC_TBS_AVAIL BIT(0)
	#define STMMAC_TBS_EN BIT(1)

	/* Frequently used values are kept adjacent for cache effect */
	struct stmmac_tx_queue {
	u32 tx_count_frames;
	int tbs;
	struct hrtimer txtimer;
	u32 queue_index;
	struct stmmac_priv *priv_data;
	struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp;
	struct dma_edesc *dma_entx;
	struct dma_desc *dma_tx;
	struct sk_buff **tx_skbuff;
	struct stmmac_tx_info *tx_skbuff_dma;
	unsigned int cur_tx;
	unsigned int dirty_tx;
	dma_addr_t dma_tx_phy;
	u32 tx_tail_addr;
	u32 mss;
	};

	struct stmmac_rx_buffer {
	struct page *page;
	struct page *sec_page;
	dma_addr_t addr;
	dma_addr_t sec_addr;
	};

	struct stmmac_rx_queue {
	u32 rx_count_frames;
	u32 queue_index;
	struct page_pool *page_pool;
	struct stmmac_rx_buffer *buf_pool;
	struct stmmac_priv *priv_data;
	struct dma_extended_desc *dma_erx;
	struct dma_desc *dma_rx ____cacheline_aligned_in_smp;
	unsigned int cur_rx;
	unsigned int dirty_rx;
	u32 rx_zeroc_thresh;
	dma_addr_t dma_rx_phy;
	u32 rx_tail_addr;
	unsigned int state_saved;
	struct {
	struct sk_buff *skb;
	unsigned int len;
	unsigned int error;
	} state;
	};

	struct stmmac_channel {
	struct napi_struct rx_napi ____cacheline_aligned_in_smp;
	struct napi_struct tx_napi ____cacheline_aligned_in_smp;
	struct stmmac_priv *priv_data;
	spinlock_t lock;
	u32 index;
	};

	struct stmmac_tc_entry {
	bool in_use;
	bool in_hw;
	bool is_last;
	bool is_frag;
	void *frag_ptr;
	unsigned int table_pos;
	u32 handle;
	u32 prio;
	struct {
	u32 match_data;
	u32 match_en;
	u8 af:1;
	u8 rf:1;
	u8 im:1;
	u8 nc:1;
	u8 res1:4;
	u8 frame_offset;
	u8 ok_index;
	u8 dma_ch_no;
	u32 res2;
	} __packed val;
	};

	#define STMMAC_PPS_MAX 4
	struct stmmac_pps_cfg {
	bool available;
	struct timespec64 start;
	struct timespec64 period;
	};

	struct stmmac_rss {
	int enable;
	u8 key[STMMAC_RSS_HASH_KEY_SIZE];
	u32 table[STMMAC_RSS_MAX_TABLE_SIZE];
	};

	#define STMMAC_FLOW_ACTION_DROP BIT(0)
	struct stmmac_flow_entry {
	unsigned long cookie;
	unsigned long action;
	u8 ip_proto;
	int in_use;
	int idx;
	int is_l4;
	};

	struct stmmac_priv {
	/* Frequently used values are kept adjacent for cache effect */
	u32 tx_coal_frames;
	u32 tx_coal_timer;
	u32 rx_coal_frames;

	int tx_coalesce;
	int hwts_tx_en;
	bool tx_path_in_lpi_mode;
	bool tso;
	int sph;
	u32 sarc_type;

	unsigned int dma_buf_sz;
	unsigned int rx_copybreak;
	u32 rx_riwt;
	int hwts_rx_en;

	void __iomem *ioaddr;
	struct net_device *dev;
	struct device *device;
	struct mac_device_info *hw;
	int (hwif_quirks)(struct stmmac_priv priv);
	struct mutex lock;

	/* RX Queue */
	struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES];
	unsigned int dma_rx_size;

	/* TX Queue */
	struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES];
	unsigned int dma_tx_size;

	/* Generic channel for NAPI */
	struct stmmac_channel channel[STMMAC_CH_MAX];

	int speed;
	unsigned int flow_ctrl;
	unsigned int pause;
	struct mii_bus *mii;
	int mii_irq[PHY_MAX_ADDR];

	struct phylink_config phylink_config;
	struct phylink *phylink;

	struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp;
	struct stmmac_safety_stats sstats;
	struct plat_stmmacenet_data *plat;
	struct dma_features dma_cap;
	struct stmmac_counters mmc;
	int hw_cap_support;
	int synopsys_id;
	u32 msg_enable;
	int wolopts;
	int wol_irq;
	int clk_csr;
	struct timer_list eee_ctrl_timer;
	int lpi_irq;
	int eee_enabled;
	int eee_active;
	int tx_lpi_timer;
	int tx_lpi_enabled;
	int eee_tw_timer;
	bool eee_sw_timer_en;
	unsigned int mode;
	unsigned int chain_mode;
	int extend_desc;
	struct hwtstamp_config tstamp_config;
	struct ptp_clock *ptp_clock;
	struct ptp_clock_info ptp_clock_ops;
	unsigned int default_addend;
	u32 sub_second_inc;
	u32 systime_flags;
	u32 adv_ts;
	int use_riwt;
	int irq_wake;
	spinlock_t ptp_lock;
	void __iomem *mmcaddr;
	void __iomem *ptpaddr;
	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];

	#ifdef CONFIG_DEBUG_FS
	struct dentry *dbgfs_dir;
	#endif

	unsigned long state;
	struct workqueue_struct *wq;
	struct work_struct service_task;

	/* TC Handling */
	unsigned int tc_entries_max;
	unsigned int tc_off_max;
	struct stmmac_tc_entry *tc_entries;
	unsigned int flow_entries_max;
	struct stmmac_flow_entry *flow_entries;

	/* Pulse Per Second output */
	struct stmmac_pps_cfg pps[STMMAC_PPS_MAX];

	/* Receive Side Scaling */
	struct stmmac_rss rss;
	};

	enum stmmac_state {
	STMMAC_DOWN,
	STMMAC_RESET_REQUESTED,
	STMMAC_RESETING,
	STMMAC_SERVICE_SCHED,
	};

	int stmmac_mdio_unregister(struct net_device *ndev);
	int stmmac_mdio_register(struct net_device *ndev);
	int stmmac_mdio_reset(struct mii_bus *mii);
	void stmmac_set_ethtool_ops(struct net_device *netdev);

	void stmmac_ptp_register(struct stmmac_priv *priv);
	void stmmac_ptp_unregister(struct stmmac_priv *priv);
	int stmmac_resume(struct device *dev);
	int stmmac_suspend(struct device *dev);
	int stmmac_dvr_remove(struct device *dev);
	int stmmac_dvr_probe(struct device *device,
	struct plat_stmmacenet_data *plat_dat,
	struct stmmac_resources *res);
	void stmmac_disable_eee_mode(struct stmmac_priv *priv);
	bool stmmac_eee_init(struct stmmac_priv *priv);
	int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt);
	int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);

	#if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)
	void stmmac_selftest_run(struct net_device *dev,
	struct ethtool_test etest, u64 buf);
	void stmmac_selftest_get_strings(struct stmmac_priv priv, u8 data);
	int stmmac_selftest_get_count(struct stmmac_priv *priv);
	#else
	static inline void stmmac_selftest_run(struct net_device *dev,
	struct ethtool_test etest, u64 buf)
	{
	/* Not enabled */
	}
	static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv,
	u8 *data)
	{
	/* Not enabled */
	}
	static inline int stmmac_selftest_get_count(struct stmmac_priv *priv)
	{
	return -EOPNOTSUPP;
	}
	#endif /* CONFIG_STMMAC_SELFTESTS */

	#endif /* __STMMAC_H__ */