1 /* 2 * Copyright (c) 2018 Intel Corporation. 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ETH_E1000_PRIV_H 8 #define ETH_E1000_PRIV_H 9 10 #ifdef __cplusplus 11 extern "C" { 12 #endif 13 14 #define CTRL_SLU (1 << 6) /* Set Link Up */ 15 16 #define TCTL_EN (1 << 1) 17 #define RCTL_EN (1 << 1) 18 19 #define ICR_TXDW (1) /* Transmit Descriptor Written Back */ 20 #define ICR_TXQE (1 << 1) /* Transmit Queue Empty */ 21 #define ICR_RXO (1 << 6) /* Receiver Overrun */ 22 23 #define IMS_RXO (1 << 6) /* Receiver FIFO Overrun */ 24 25 #define RCTL_MPE (1 << 4) /* Multicast Promiscuous Enabled */ 26 27 #define TDESC_EOP (1) /* End Of Packet */ 28 #define TDESC_RS (1 << 3) /* Report Status */ 29 30 #define RDESC_STA_DD (1) /* Descriptor Done */ 31 #define TDESC_STA_DD (1) /* Descriptor Done */ 32 33 #define ETH_ALEN 6 /* TODO: Add a global reusable definition in OS */ 34 35 enum e1000_reg_t { 36 CTRL = 0x0000, /* Device Control */ 37 ICR = 0x00C0, /* Interrupt Cause Read */ 38 ICS = 0x00C8, /* Interrupt Cause Set */ 39 IMS = 0x00D0, /* Interrupt Mask Set */ 40 RCTL = 0x0100, /* Receive Control */ 41 TCTL = 0x0400, /* Transmit Control */ 42 RDBAL = 0x2800, /* Rx Descriptor Base Address Low */ 43 RDBAH = 0x2804, /* Rx Descriptor Base Address High */ 44 RDLEN = 0x2808, /* Rx Descriptor Length */ 45 RDH = 0x2810, /* Rx Descriptor Head */ 46 RDT = 0x2818, /* Rx Descriptor Tail */ 47 TDBAL = 0x3800, /* Tx Descriptor Base Address Low */ 48 TDBAH = 0x3804, /* Tx Descriptor Base Address High */ 49 TDLEN = 0x3808, /* Tx Descriptor Length */ 50 TDH = 0x3810, /* Tx Descriptor Head */ 51 TDT = 0x3818, /* Tx Descriptor Tail */ 52 RAL = 0x5400, /* Receive Address Low */ 53 RAH = 0x5404, /* Receive Address High */ 54 }; 55 56 /* Legacy TX Descriptor */ 57 struct e1000_tx { 58 uint64_t addr; 59 uint16_t len; 60 uint8_t cso; 61 uint8_t cmd; 62 uint8_t sta; 63 uint8_t css; 64 uint16_t special; 65 }; 66 67 /* Legacy RX Descriptor */ 68 struct e1000_rx { 69 uint64_t addr; 70 uint16_t len; 71 uint16_t csum; 72 uint8_t sta; 73 uint8_t err; 74 uint16_t special; 75 }; 76 77 struct e1000_dev { 78 volatile struct e1000_tx tx __aligned(16); 79 volatile struct e1000_rx rx __aligned(16); 80 mm_reg_t address; 81 82 /* BDF & DID/VID */ 83 struct pcie_dev *pcie; 84 85 /* If VLAN is enabled, there can be multiple VLAN interfaces related to 86 * this physical device. In that case, this iface pointer value is not 87 * really used for anything. 88 */ 89 struct net_if *iface; 90 uint8_t mac[ETH_ALEN]; 91 uint8_t txb[NET_ETH_MTU]; 92 uint8_t rxb[NET_ETH_MTU]; 93 #if defined(CONFIG_ETH_E1000_PTP_CLOCK) 94 const struct device *ptp_clock; 95 float clk_ratio; 96 #endif 97 }; 98 99 struct e1000_config { 100 void (*config_func)(const struct e1000_dev *dev); 101 }; 102 103 static const char *e1000_reg_to_string(enum e1000_reg_t r) 104 __attribute__((unused)); 105 106 #define iow32(_dev, _reg, _val) do { \ 107 LOG_DBG("iow32 %s 0x%08x", e1000_reg_to_string(_reg), (_val)); \ 108 sys_write32(_val, (_dev)->address + (_reg)); \ 109 } while (false) 110 111 #define ior32(_dev, _reg) \ 112 ({ \ 113 uint32_t val = sys_read32((_dev)->address + (_reg)); \ 114 LOG_DBG("ior32 %s 0x%08x", e1000_reg_to_string(_reg), val); \ 115 val; \ 116 }) 117 118 #ifdef __cplusplus 119 } 120 #endif 121 122 #endif /* ETH_E1000_PRIV_H_ */ 123
