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/phylink.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 19 struct 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 29 struct am65_cpsw_slave_data { 30 bool mac_only; 31 struct cpsw_sl *mac_sl; 32 struct device_node *phy_node; 33 phy_interface_t phy_if; 34 struct phy *ifphy; 35 struct phy *serdes_phy; 36 bool rx_pause; 37 bool tx_pause; 38 u8 mac_addr[ETH_ALEN]; 39 int port_vlan; 40 struct phylink *phylink; 41 struct phylink_config phylink_config; 42 }; 43 44 struct am65_cpsw_port { 45 struct am65_cpsw_common *common; 46 struct net_device *ndev; 47 const char *name; 48 u32 port_id; 49 void __iomem *port_base; 50 void __iomem *sgmii_base; 51 void __iomem *stat_base; 52 void __iomem *fetch_ram_base; 53 bool disabled; 54 struct am65_cpsw_slave_data slave; 55 bool tx_ts_enabled; 56 bool rx_ts_enabled; 57 struct am65_cpsw_qos qos; 58 struct devlink_port devlink_port; 59 /* Only for suspend resume context */ 60 u32 vid_context; 61 }; 62 63 struct am65_cpsw_host { 64 struct am65_cpsw_common *common; 65 void __iomem *port_base; 66 void __iomem *stat_base; 67 /* Only for suspend resume context */ 68 u32 vid_context; 69 }; 70 71 struct am65_cpsw_tx_chn { 72 struct device *dma_dev; 73 struct napi_struct napi_tx; 74 struct am65_cpsw_common *common; 75 struct k3_cppi_desc_pool *desc_pool; 76 struct k3_udma_glue_tx_channel *tx_chn; 77 spinlock_t lock; /* protect TX rings in multi-port mode */ 78 int irq; 79 u32 id; 80 u32 descs_num; 81 char tx_chn_name[128]; 82 }; 83 84 struct am65_cpsw_rx_chn { 85 struct device *dev; 86 struct device *dma_dev; 87 struct k3_cppi_desc_pool *desc_pool; 88 struct k3_udma_glue_rx_channel *rx_chn; 89 u32 descs_num; 90 int irq; 91 }; 92 93 #define AM65_CPSW_QUIRK_I2027_NO_TX_CSUM BIT(0) 94 95 struct am65_cpsw_pdata { 96 u32 quirks; 97 u64 extra_modes; 98 enum k3_ring_mode fdqring_mode; 99 const char *ale_dev_id; 100 }; 101 102 enum cpsw_devlink_param_id { 103 AM65_CPSW_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 104 AM65_CPSW_DL_PARAM_SWITCH_MODE, 105 }; 106 107 struct am65_cpsw_devlink { 108 struct am65_cpsw_common *common; 109 }; 110 111 struct am65_cpsw_common { 112 struct device *dev; 113 struct device *mdio_dev; 114 struct am65_cpsw_pdata pdata; 115 116 void __iomem *ss_base; 117 void __iomem *cpsw_base; 118 119 u32 port_num; 120 struct am65_cpsw_host host; 121 struct am65_cpsw_port *ports; 122 u32 disabled_ports_mask; 123 struct net_device *dma_ndev; 124 125 int usage_count; /* number of opened ports */ 126 struct cpsw_ale *ale; 127 int tx_ch_num; 128 u32 rx_flow_id_base; 129 130 struct am65_cpsw_tx_chn tx_chns[AM65_CPSW_MAX_TX_QUEUES]; 131 struct completion tdown_complete; 132 atomic_t tdown_cnt; 133 134 struct am65_cpsw_rx_chn rx_chns; 135 struct napi_struct napi_rx; 136 137 bool rx_irq_disabled; 138 139 u32 nuss_ver; 140 u32 cpsw_ver; 141 unsigned long bus_freq; 142 bool pf_p0_rx_ptype_rrobin; 143 struct am65_cpts *cpts; 144 int est_enabled; 145 146 bool is_emac_mode; 147 u16 br_members; 148 int default_vlan; 149 struct devlink *devlink; 150 struct net_device *hw_bridge_dev; 151 struct notifier_block am65_cpsw_netdevice_nb; 152 unsigned char switch_id[MAX_PHYS_ITEM_ID_LEN]; 153 /* only for suspend/resume context restore */ 154 u32 *ale_context; 155 }; 156 157 struct am65_cpsw_ndev_stats { 158 u64 tx_packets; 159 u64 tx_bytes; 160 u64 rx_packets; 161 u64 rx_bytes; 162 struct u64_stats_sync syncp; 163 }; 164 165 struct am65_cpsw_ndev_priv { 166 u32 msg_enable; 167 struct am65_cpsw_port *port; 168 struct am65_cpsw_ndev_stats __percpu *stats; 169 bool offload_fwd_mark; 170 }; 171 172 #define am65_ndev_to_priv(ndev) \ 173 ((struct am65_cpsw_ndev_priv *)netdev_priv(ndev)) 174 #define am65_ndev_to_port(ndev) (am65_ndev_to_priv(ndev)->port) 175 #define am65_ndev_to_common(ndev) (am65_ndev_to_port(ndev)->common) 176 #define am65_ndev_to_slave(ndev) (&am65_ndev_to_port(ndev)->slave) 177 178 #define am65_common_get_host(common) (&(common)->host) 179 #define am65_common_get_port(common, id) (&(common)->ports[(id) - 1]) 180 181 #define am65_cpsw_napi_to_common(pnapi) \ 182 container_of(pnapi, struct am65_cpsw_common, napi_rx) 183 #define am65_cpsw_napi_to_tx_chn(pnapi) \ 184 container_of(pnapi, struct am65_cpsw_tx_chn, napi_tx) 185 186 #define AM65_CPSW_DRV_NAME "am65-cpsw-nuss" 187 188 #define AM65_CPSW_IS_CPSW2G(common) ((common)->port_num == 1) 189 190 extern const struct ethtool_ops am65_cpsw_ethtool_ops_slave; 191 192 void am65_cpsw_nuss_adjust_link(struct net_device *ndev); 193 void am65_cpsw_nuss_set_p0_ptype(struct am65_cpsw_common *common); 194 void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common); 195 int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx); 196 197 bool am65_cpsw_port_dev_check(const struct net_device *dev); 198 199 #endif /* AM65_CPSW_NUSS_H_ */ 200