linux/drivers/net/ethernet/ti/am65-cpsw-nuss.h
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   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/if_ether.h>
  10#include <linux/kernel.h>
  11#include <linux/module.h>
  12#include <linux/netdevice.h>
  13#include <linux/phy.h>
  14#include <linux/platform_device.h>
  15#include <linux/soc/ti/k3-ringacc.h>
  16#include <net/devlink.h>
  17#include "am65-cpsw-qos.h"
  18
  19struct am65_cpts;
  20
  21#define HOST_PORT_NUM           0
  22
  23#define AM65_CPSW_MAX_TX_QUEUES 8
  24#define AM65_CPSW_MAX_RX_QUEUES 1
  25#define AM65_CPSW_MAX_RX_FLOWS  1
  26
  27#define AM65_CPSW_PORT_VLAN_REG_OFFSET  0x014
  28
  29struct am65_cpsw_slave_data {
  30        bool                            mac_only;
  31        struct cpsw_sl                  *mac_sl;
  32        struct device_node              *phy_node;
  33        struct phy_device               *phy;
  34        phy_interface_t                 phy_if;
  35        struct phy                      *ifphy;
  36        bool                            rx_pause;
  37        bool                            tx_pause;
  38        u8                              mac_addr[ETH_ALEN];
  39        int                             port_vlan;
  40};
  41
  42struct am65_cpsw_port {
  43        struct am65_cpsw_common         *common;
  44        struct net_device               *ndev;
  45        const char                      *name;
  46        u32                             port_id;
  47        void __iomem                    *port_base;
  48        void __iomem                    *stat_base;
  49        void __iomem                    *fetch_ram_base;
  50        bool                            disabled;
  51        struct am65_cpsw_slave_data     slave;
  52        bool                            tx_ts_enabled;
  53        bool                            rx_ts_enabled;
  54        struct am65_cpsw_qos            qos;
  55        struct devlink_port             devlink_port;
  56};
  57
  58struct am65_cpsw_host {
  59        struct am65_cpsw_common         *common;
  60        void __iomem                    *port_base;
  61        void __iomem                    *stat_base;
  62};
  63
  64struct am65_cpsw_tx_chn {
  65        struct device *dma_dev;
  66        struct napi_struct napi_tx;
  67        struct am65_cpsw_common *common;
  68        struct k3_cppi_desc_pool *desc_pool;
  69        struct k3_udma_glue_tx_channel *tx_chn;
  70        spinlock_t lock; /* protect TX rings in multi-port mode */
  71        int irq;
  72        u32 id;
  73        u32 descs_num;
  74        char tx_chn_name[128];
  75};
  76
  77struct am65_cpsw_rx_chn {
  78        struct device *dev;
  79        struct device *dma_dev;
  80        struct k3_cppi_desc_pool *desc_pool;
  81        struct k3_udma_glue_rx_channel *rx_chn;
  82        u32 descs_num;
  83        int irq;
  84};
  85
  86#define AM65_CPSW_QUIRK_I2027_NO_TX_CSUM BIT(0)
  87
  88struct am65_cpsw_pdata {
  89        u32     quirks;
  90        enum k3_ring_mode fdqring_mode;
  91        const char      *ale_dev_id;
  92};
  93
  94enum cpsw_devlink_param_id {
  95        AM65_CPSW_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
  96        AM65_CPSW_DL_PARAM_SWITCH_MODE,
  97};
  98
  99struct am65_cpsw_devlink {
 100        struct am65_cpsw_common *common;
 101};
 102
 103struct am65_cpsw_common {
 104        struct device           *dev;
 105        struct device           *mdio_dev;
 106        struct am65_cpsw_pdata  pdata;
 107
 108        void __iomem            *ss_base;
 109        void __iomem            *cpsw_base;
 110
 111        u32                     port_num;
 112        struct am65_cpsw_host   host;
 113        struct am65_cpsw_port   *ports;
 114        u32                     disabled_ports_mask;
 115        struct net_device       *dma_ndev;
 116
 117        int                     usage_count; /* number of opened ports */
 118        struct cpsw_ale         *ale;
 119        int                     tx_ch_num;
 120        u32                     rx_flow_id_base;
 121
 122        struct am65_cpsw_tx_chn tx_chns[AM65_CPSW_MAX_TX_QUEUES];
 123        struct completion       tdown_complete;
 124        atomic_t                tdown_cnt;
 125
 126        struct am65_cpsw_rx_chn rx_chns;
 127        struct napi_struct      napi_rx;
 128
 129        u32                     nuss_ver;
 130        u32                     cpsw_ver;
 131        unsigned long           bus_freq;
 132        bool                    pf_p0_rx_ptype_rrobin;
 133        struct am65_cpts        *cpts;
 134        int                     est_enabled;
 135
 136        bool            is_emac_mode;
 137        u16                     br_members;
 138        int                     default_vlan;
 139        struct devlink *devlink;
 140        struct net_device *hw_bridge_dev;
 141        struct notifier_block am65_cpsw_netdevice_nb;
 142        unsigned char switch_id[MAX_PHYS_ITEM_ID_LEN];
 143};
 144
 145struct am65_cpsw_ndev_stats {
 146        u64 tx_packets;
 147        u64 tx_bytes;
 148        u64 rx_packets;
 149        u64 rx_bytes;
 150        struct u64_stats_sync syncp;
 151};
 152
 153struct am65_cpsw_ndev_priv {
 154        u32                     msg_enable;
 155        struct am65_cpsw_port   *port;
 156        struct am65_cpsw_ndev_stats __percpu *stats;
 157        bool offload_fwd_mark;
 158};
 159
 160#define am65_ndev_to_priv(ndev) \
 161        ((struct am65_cpsw_ndev_priv *)netdev_priv(ndev))
 162#define am65_ndev_to_port(ndev) (am65_ndev_to_priv(ndev)->port)
 163#define am65_ndev_to_common(ndev) (am65_ndev_to_port(ndev)->common)
 164#define am65_ndev_to_slave(ndev) (&am65_ndev_to_port(ndev)->slave)
 165
 166#define am65_common_get_host(common) (&(common)->host)
 167#define am65_common_get_port(common, id) (&(common)->ports[(id) - 1])
 168
 169#define am65_cpsw_napi_to_common(pnapi) \
 170        container_of(pnapi, struct am65_cpsw_common, napi_rx)
 171#define am65_cpsw_napi_to_tx_chn(pnapi) \
 172        container_of(pnapi, struct am65_cpsw_tx_chn, napi_tx)
 173
 174#define AM65_CPSW_DRV_NAME "am65-cpsw-nuss"
 175
 176#define AM65_CPSW_IS_CPSW2G(common) ((common)->port_num == 1)
 177
 178extern const struct ethtool_ops am65_cpsw_ethtool_ops_slave;
 179
 180void am65_cpsw_nuss_adjust_link(struct net_device *ndev);
 181void am65_cpsw_nuss_set_p0_ptype(struct am65_cpsw_common *common);
 182void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common);
 183int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx);
 184
 185bool am65_cpsw_port_dev_check(const struct net_device *dev);
 186
 187#endif /* AM65_CPSW_NUSS_H_ */
 188