Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 404 insertions, 0 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
new file mode 100644
index 000000000..46944c02b
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -0,0 +1,404 @@
+/* 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"
+
+#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>
+#include <uapi/linux/bpf.h>
+
+struct stmmac_resources {
+	void __iomem *addr;
+	u8 mac[ETH_ALEN];
+	int wol_irq;
+	int lpi_irq;
+	int irq;
+	int sfty_ce_irq;
+	int sfty_ue_irq;
+	int rx_irq[MTL_MAX_RX_QUEUES];
+	int tx_irq[MTL_MAX_TX_QUEUES];
+};
+
+enum stmmac_txbuf_type {
+	STMMAC_TXBUF_T_SKB,
+	STMMAC_TXBUF_T_XDP_TX,
+	STMMAC_TXBUF_T_XDP_NDO,
+	STMMAC_TXBUF_T_XSK_TX,
+};
+
+struct stmmac_tx_info {
+	dma_addr_t buf;
+	bool map_as_page;
+	unsigned len;
+	bool last_segment;
+	bool is_jumbo;
+	enum stmmac_txbuf_type buf_type;
+};
+
+#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;
+	union {
+		struct sk_buff **tx_skbuff;
+		struct xdp_frame **xdpf;
+	};
+	struct stmmac_tx_info *tx_skbuff_dma;
+	struct xsk_buff_pool *xsk_pool;
+	u32 xsk_frames_done;
+	unsigned int cur_tx;
+	unsigned int dirty_tx;
+	dma_addr_t dma_tx_phy;
+	dma_addr_t tx_tail_addr;
+	u32 mss;
+};
+
+struct stmmac_rx_buffer {
+	union {
+		struct {
+			struct page *page;
+			dma_addr_t addr;
+			__u32 page_offset;
+		};
+		struct xdp_buff *xdp;
+	};
+	struct page *sec_page;
+	dma_addr_t sec_addr;
+};
+
+struct stmmac_rx_queue {
+	u32 rx_count_frames;
+	u32 queue_index;
+	struct xdp_rxq_info xdp_rxq;
+	struct xsk_buff_pool *xsk_pool;
+	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;
+	unsigned int buf_alloc_num;
+	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 napi_struct rxtx_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;
+};
+
+/* Rx Frame Steering */
+enum stmmac_rfs_type {
+	STMMAC_RFS_T_VLAN,
+	STMMAC_RFS_T_LLDP,
+	STMMAC_RFS_T_1588,
+	STMMAC_RFS_T_MAX,
+};
+
+struct stmmac_rfs_entry {
+	unsigned long cookie;
+	u16 etype;
+	int in_use;
+	int type;
+	int tc;
+};
+
+struct stmmac_dma_conf {
+	unsigned int dma_buf_sz;
+
+	/* 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;
+};
+
+struct stmmac_priv {
+	/* Frequently used values are kept adjacent for cache effect */
+	u32 tx_coal_frames[MTL_MAX_TX_QUEUES];
+	u32 tx_coal_timer[MTL_MAX_TX_QUEUES];
+	u32 rx_coal_frames[MTL_MAX_TX_QUEUES];
+
+	int hwts_tx_en;
+	bool tx_path_in_lpi_mode;
+	bool tso;
+	int sph;
+	int sph_cap;
+	u32 sarc_type;
+
+	unsigned int rx_copybreak;
+	u32 rx_riwt[MTL_MAX_TX_QUEUES];
+	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;
+
+	struct stmmac_dma_conf dma_conf;
+
+	/* Generic channel for NAPI */
+	struct stmmac_channel channel[STMMAC_CH_MAX];
+
+	int speed;
+	unsigned int flow_ctrl;
+	unsigned int pause;
+	struct mii_bus *mii;
+
+	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;
+	bool wol_irq_disabled;
+	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;
+	rwlock_t ptp_lock;
+	/* Protects auxiliary snapshot registers from concurrent access. */
+	struct mutex aux_ts_lock;
+	wait_queue_head_t tstamp_busy_wait;
+
+	void __iomem *mmcaddr;
+	void __iomem *ptpaddr;
+	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	int sfty_ce_irq;
+	int sfty_ue_irq;
+	int rx_irq[MTL_MAX_RX_QUEUES];
+	int tx_irq[MTL_MAX_TX_QUEUES];
+	/*irq name */
+	char int_name_mac[IFNAMSIZ + 9];
+	char int_name_wol[IFNAMSIZ + 9];
+	char int_name_lpi[IFNAMSIZ + 9];
+	char int_name_sfty_ce[IFNAMSIZ + 10];
+	char int_name_sfty_ue[IFNAMSIZ + 10];
+	char int_name_rx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 14];
+	char int_name_tx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 18];
+
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *dbgfs_dir;
+#endif
+
+	unsigned long state;
+	struct workqueue_struct *wq;
+	struct work_struct service_task;
+
+	/* Workqueue for handling FPE hand-shaking */
+	unsigned long fpe_task_state;
+	struct workqueue_struct *fpe_wq;
+	struct work_struct fpe_task;
+	char wq_name[IFNAMSIZ + 4];
+
+	/* 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;
+	unsigned int rfs_entries_max[STMMAC_RFS_T_MAX];
+	unsigned int rfs_entries_cnt[STMMAC_RFS_T_MAX];
+	unsigned int rfs_entries_total;
+	struct stmmac_rfs_entry *rfs_entries;
+
+	/* Pulse Per Second output */
+	struct stmmac_pps_cfg pps[STMMAC_PPS_MAX];
+
+	/* Receive Side Scaling */
+	struct stmmac_rss rss;
+
+	/* XDP BPF Program */
+	unsigned long *af_xdp_zc_qps;
+	struct bpf_prog *xdp_prog;
+};
+
+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);
+int stmmac_xpcs_setup(struct mii_bus *mii);
+void stmmac_set_ethtool_ops(struct net_device *netdev);
+
+int stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 systime_flags);
+void stmmac_ptp_register(struct stmmac_priv *priv);
+void stmmac_ptp_unregister(struct stmmac_priv *priv);
+int stmmac_xdp_open(struct net_device *dev);
+void stmmac_xdp_release(struct net_device *dev);
+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);
+int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled);
+void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable);
+
+static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv)
+{
+	return !!priv->xdp_prog;
+}
+
+static inline unsigned int stmmac_rx_offset(struct stmmac_priv *priv)
+{
+	if (stmmac_xdp_is_enabled(priv))
+		return XDP_PACKET_HEADROOM;
+
+	return 0;
+}
+
+void stmmac_disable_rx_queue(struct stmmac_priv *priv, u32 queue);
+void stmmac_enable_rx_queue(struct stmmac_priv *priv, u32 queue);
+void stmmac_disable_tx_queue(struct stmmac_priv *priv, u32 queue);
+void stmmac_enable_tx_queue(struct stmmac_priv *priv, u32 queue);
+int stmmac_xsk_wakeup(struct net_device *dev, u32 queue, u32 flags);
+struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time,
+					   ktime_t current_time,
+					   u64 cycle_time);
+
+#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__ */