1 /* 2 * Core code for QEMU e1000e emulation 3 * 4 * Software developer's manuals: 5 * http://www.intel.com/content/dam/doc/datasheet/82574l-gbe-controller-datasheet.pdf 6 * 7 * Copyright (c) 2015 Ravello Systems LTD (http://ravellosystems.com) 8 * Developed by Daynix Computing LTD (http://www.daynix.com) 9 * 10 * Authors: 11 * Dmitry Fleytman <dmitry@daynix.com> 12 * Leonid Bloch <leonid@daynix.com> 13 * Yan Vugenfirer <yan@daynix.com> 14 * 15 * Based on work done by: 16 * Nir Peleg, Tutis Systems Ltd. for Qumranet Inc. 17 * Copyright (c) 2008 Qumranet 18 * Based on work done by: 19 * Copyright (c) 2007 Dan Aloni 20 * Copyright (c) 2004 Antony T Curtis 21 * 22 * This library is free software; you can redistribute it and/or 23 * modify it under the terms of the GNU Lesser General Public 24 * License as published by the Free Software Foundation; either 25 * version 2 of the License, or (at your option) any later version. 26 * 27 * This library is distributed in the hope that it will be useful, 28 * but WITHOUT ANY WARRANTY; without even the implied warranty of 29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 30 * Lesser General Public License for more details. 31 * 32 * You should have received a copy of the GNU Lesser General Public 33 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 34 */ 35 36 #ifndef HW_NET_E1000E_CORE_H 37 #define HW_NET_E1000E_CORE_H 38 39 #define E1000E_PHY_PAGE_SIZE (0x20) 40 #define E1000E_PHY_PAGES (0x07) 41 #define E1000E_MAC_SIZE (0x8000) 42 #define E1000E_EEPROM_SIZE (64) 43 #define E1000E_MSIX_VEC_NUM (5) 44 #define E1000E_NUM_QUEUES (2) 45 46 typedef struct E1000Core E1000ECore; 47 48 enum { PHY_R = BIT(0), 49 PHY_W = BIT(1), 50 PHY_RW = PHY_R | PHY_W, 51 PHY_ANYPAGE = BIT(2) }; 52 53 typedef struct E1000IntrDelayTimer_st { 54 QEMUTimer *timer; 55 bool running; 56 uint32_t delay_reg; 57 uint32_t delay_resolution_ns; 58 E1000ECore *core; 59 } E1000IntrDelayTimer; 60 61 struct E1000Core { 62 uint32_t mac[E1000E_MAC_SIZE]; 63 uint16_t phy[E1000E_PHY_PAGES][E1000E_PHY_PAGE_SIZE]; 64 uint16_t eeprom[E1000E_EEPROM_SIZE]; 65 66 uint32_t rxbuf_sizes[E1000_PSRCTL_BUFFS_PER_DESC]; 67 uint32_t rx_desc_buf_size; 68 uint32_t rxbuf_min_shift; 69 uint8_t rx_desc_len; 70 71 QEMUTimer *autoneg_timer; 72 73 struct e1000e_tx { 74 e1000x_txd_props props; 75 76 bool skip_cp; 77 unsigned char sum_needed; 78 bool cptse; 79 struct NetTxPkt *tx_pkt; 80 } tx[E1000E_NUM_QUEUES]; 81 82 struct NetRxPkt *rx_pkt; 83 84 bool has_vnet; 85 int max_queue_num; 86 87 /* Interrupt moderation management */ 88 uint32_t delayed_causes; 89 90 E1000IntrDelayTimer radv; 91 E1000IntrDelayTimer rdtr; 92 E1000IntrDelayTimer raid; 93 94 E1000IntrDelayTimer tadv; 95 E1000IntrDelayTimer tidv; 96 97 E1000IntrDelayTimer itr; 98 bool itr_intr_pending; 99 100 E1000IntrDelayTimer eitr[E1000E_MSIX_VEC_NUM]; 101 bool eitr_intr_pending[E1000E_MSIX_VEC_NUM]; 102 103 VMChangeStateEntry *vmstate; 104 105 uint32_t itr_guest_value; 106 uint32_t eitr_guest_value[E1000E_MSIX_VEC_NUM]; 107 108 uint16_t vet; 109 110 uint8_t permanent_mac[ETH_ALEN]; 111 112 NICState *owner_nic; 113 PCIDevice *owner; 114 void (*owner_start_recv)(PCIDevice *d); 115 116 uint32_t msi_causes_pending; 117 }; 118 119 void 120 e1000e_core_write(E1000ECore *core, hwaddr addr, uint64_t val, unsigned size); 121 122 uint64_t 123 e1000e_core_read(E1000ECore *core, hwaddr addr, unsigned size); 124 125 void 126 e1000e_core_pci_realize(E1000ECore *regs, 127 const uint16_t *eeprom_templ, 128 uint32_t eeprom_size, 129 const uint8_t *macaddr); 130 131 void 132 e1000e_core_reset(E1000ECore *core); 133 134 void 135 e1000e_core_pre_save(E1000ECore *core); 136 137 int 138 e1000e_core_post_load(E1000ECore *core); 139 140 void 141 e1000e_core_set_link_status(E1000ECore *core); 142 143 void 144 e1000e_core_pci_uninit(E1000ECore *core); 145 146 bool 147 e1000e_can_receive(E1000ECore *core); 148 149 ssize_t 150 e1000e_receive(E1000ECore *core, const uint8_t *buf, size_t size); 151 152 ssize_t 153 e1000e_receive_iov(E1000ECore *core, const struct iovec *iov, int iovcnt); 154 155 void 156 e1000e_start_recv(E1000ECore *core); 157 158 #endif 159