/* * QEMU INTEL 82574 GbE NIC emulation * * Software developer's manuals: * http://www.intel.com/content/dam/doc/datasheet/82574l-gbe-controller-datasheet.pdf * * Copyright (c) 2015 Ravello Systems LTD (http://ravellosystems.com) * Developed by Daynix Computing LTD (http://www.daynix.com) * * Authors: * Dmitry Fleytman * Leonid Bloch * Yan Vugenfirer * * Based on work done by: * Nir Peleg, Tutis Systems Ltd. for Qumranet Inc. * Copyright (c) 2008 Qumranet * Based on work done by: * Copyright (c) 2007 Dan Aloni * Copyright (c) 2004 Antony T Curtis * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include "qemu/osdep.h" #include "qemu/units.h" #include "net/net.h" #include "net/tap.h" #include "qemu/module.h" #include "qemu/range.h" #include "sysemu/sysemu.h" #include "hw/hw.h" #include "hw/pci/msi.h" #include "hw/pci/msix.h" #include "migration/vmstate.h" #include "e1000_regs.h" #include "e1000x_common.h" #include "e1000e_core.h" #include "trace.h" #include "qapi/error.h" #define TYPE_E1000E "e1000e" #define E1000E(obj) OBJECT_CHECK(E1000EState, (obj), TYPE_E1000E) typedef struct E1000EState { PCIDevice parent_obj; NICState *nic; NICConf conf; MemoryRegion mmio; MemoryRegion flash; MemoryRegion io; MemoryRegion msix; uint32_t ioaddr; uint16_t subsys_ven; uint16_t subsys; uint16_t subsys_ven_used; uint16_t subsys_used; bool disable_vnet; E1000ECore core; } E1000EState; #define E1000E_MMIO_IDX 0 #define E1000E_FLASH_IDX 1 #define E1000E_IO_IDX 2 #define E1000E_MSIX_IDX 3 #define E1000E_MMIO_SIZE (128 * KiB) #define E1000E_FLASH_SIZE (128 * KiB) #define E1000E_IO_SIZE (32) #define E1000E_MSIX_SIZE (16 * KiB) #define E1000E_MSIX_TABLE (0x0000) #define E1000E_MSIX_PBA (0x2000) static uint64_t e1000e_mmio_read(void *opaque, hwaddr addr, unsigned size) { E1000EState *s = opaque; return e1000e_core_read(&s->core, addr, size); } static void e1000e_mmio_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { E1000EState *s = opaque; e1000e_core_write(&s->core, addr, val, size); } static bool e1000e_io_get_reg_index(E1000EState *s, uint32_t *idx) { if (s->ioaddr < 0x1FFFF) { *idx = s->ioaddr; return true; } if (s->ioaddr < 0x7FFFF) { trace_e1000e_wrn_io_addr_undefined(s->ioaddr); return false; } if (s->ioaddr < 0xFFFFF) { trace_e1000e_wrn_io_addr_flash(s->ioaddr); return false; } trace_e1000e_wrn_io_addr_unknown(s->ioaddr); return false; } static uint64_t e1000e_io_read(void *opaque, hwaddr addr, unsigned size) { E1000EState *s = opaque; uint32_t idx = 0; uint64_t val; switch (addr) { case E1000_IOADDR: trace_e1000e_io_read_addr(s->ioaddr); return s->ioaddr; case E1000_IODATA: if (e1000e_io_get_reg_index(s, &idx)) { val = e1000e_core_read(&s->core, idx, sizeof(val)); trace_e1000e_io_read_data(idx, val); return val; } return 0; default: trace_e1000e_wrn_io_read_unknown(addr); return 0; } } static void e1000e_io_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { E1000EState *s = opaque; uint32_t idx = 0; switch (addr) { case E1000_IOADDR: trace_e1000e_io_write_addr(val); s->ioaddr = (uint32_t) val; return; case E1000_IODATA: if (e1000e_io_get_reg_index(s, &idx)) { trace_e1000e_io_write_data(idx, val); e1000e_core_write(&s->core, idx, val, sizeof(val)); } return; default: trace_e1000e_wrn_io_write_unknown(addr); return; } } static const MemoryRegionOps mmio_ops = { .read = e1000e_mmio_read, .write = e1000e_mmio_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, }, }; static const MemoryRegionOps io_ops = { .read = e1000e_io_read, .write = e1000e_io_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, }, }; static int e1000e_nc_can_receive(NetClientState *nc) { E1000EState *s = qemu_get_nic_opaque(nc); return e1000e_can_receive(&s->core); } static ssize_t e1000e_nc_receive_iov(NetClientState *nc, const struct iovec *iov, int iovcnt) { E1000EState *s = qemu_get_nic_opaque(nc); return e1000e_receive_iov(&s->core, iov, iovcnt); } static ssize_t e1000e_nc_receive(NetClientState *nc, const uint8_t *buf, size_t size) { E1000EState *s = qemu_get_nic_opaque(nc); return e1000e_receive(&s->core, buf, size); } static void e1000e_set_link_status(NetClientState *nc) { E1000EState *s = qemu_get_nic_opaque(nc); e1000e_core_set_link_status(&s->core); } static NetClientInfo net_e1000e_info = { .type = NET_CLIENT_DRIVER_NIC, .size = sizeof(NICState), .can_receive = e1000e_nc_can_receive, .receive = e1000e_nc_receive, .receive_iov = e1000e_nc_receive_iov, .link_status_changed = e1000e_set_link_status, }; /* * EEPROM (NVM) contents documented in Table 36, section 6.1 * and generally 6.1.2 Software accessed words. */ static const uint16_t e1000e_eeprom_template[64] = { /* Address | Compat. | ImVer | Compat. */ 0x0000, 0x0000, 0x0000, 0x0420, 0xf746, 0x2010, 0xffff, 0xffff, /* PBA |ICtrl1 | SSID | SVID | DevID |-------|ICtrl2 */ 0x0000, 0x0000, 0x026b, 0x0000, 0x8086, 0x0000, 0x0000, 0x8058, /* NVM words 1,2,3 |-------------------------------|PCI-EID*/ 0x0000, 0x2001, 0x7e7c, 0xffff, 0x1000, 0x00c8, 0x0000, 0x2704, /* PCIe Init. Conf 1,2,3 |PCICtrl|PHY|LD1|-------| RevID | LD0,2 */ 0x6cc9, 0x3150, 0x070e, 0x460b, 0x2d84, 0x0100, 0xf000, 0x0706, /* FLPAR |FLANADD|LAN-PWR|FlVndr |ICtrl3 |APTSMBA|APTRxEP|APTSMBC*/ 0x6000, 0x0080, 0x0f04, 0x7fff, 0x4f01, 0xc600, 0x0000, 0x20ff, /* APTIF | APTMC |APTuCP |LSWFWID|MSWFWID|NC-SIMC|NC-SIC | VPDP */ 0x0028, 0x0003, 0x0000, 0x0000, 0x0000, 0x0003, 0x0000, 0xffff, /* SW Section */ 0x0100, 0xc000, 0x121c, 0xc007, 0xffff, 0xffff, 0xffff, 0xffff, /* SW Section |CHKSUM */ 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0x0120, 0xffff, 0x0000, }; static void e1000e_core_realize(E1000EState *s) { s->core.owner = &s->parent_obj; s->core.owner_nic = s->nic; } static void e1000e_unuse_msix_vectors(E1000EState *s, int num_vectors) { int i; for (i = 0; i < num_vectors; i++) { msix_vector_unuse(PCI_DEVICE(s), i); } } static bool e1000e_use_msix_vectors(E1000EState *s, int num_vectors) { int i; for (i = 0; i < num_vectors; i++) { int res = msix_vector_use(PCI_DEVICE(s), i); if (res < 0) { trace_e1000e_msix_use_vector_fail(i, res); e1000e_unuse_msix_vectors(s, i); return false; } } return true; } static void e1000e_init_msix(E1000EState *s) { PCIDevice *d = PCI_DEVICE(s); int res = msix_init(PCI_DEVICE(s), E1000E_MSIX_VEC_NUM, &s->msix, E1000E_MSIX_IDX, E1000E_MSIX_TABLE, &s->msix, E1000E_MSIX_IDX, E1000E_MSIX_PBA, 0xA0, NULL); if (res < 0) { trace_e1000e_msix_init_fail(res); } else { if (!e1000e_use_msix_vectors(s, E1000E_MSIX_VEC_NUM)) { msix_uninit(d, &s->msix, &s->msix); } } } static void e1000e_cleanup_msix(E1000EState *s) { if (msix_present(PCI_DEVICE(s))) { e1000e_unuse_msix_vectors(s, E1000E_MSIX_VEC_NUM); msix_uninit(PCI_DEVICE(s), &s->msix, &s->msix); } } static void e1000e_init_net_peer(E1000EState *s, PCIDevice *pci_dev, uint8_t *macaddr) { DeviceState *dev = DEVICE(pci_dev); NetClientState *nc; int i; s->nic = qemu_new_nic(&net_e1000e_info, &s->conf, object_get_typename(OBJECT(s)), dev->id, s); s->core.max_queue_num = s->conf.peers.queues - 1; trace_e1000e_mac_set_permanent(MAC_ARG(macaddr)); memcpy(s->core.permanent_mac, macaddr, sizeof(s->core.permanent_mac)); qemu_format_nic_info_str(qemu_get_queue(s->nic), macaddr); /* Setup virtio headers */ if (s->disable_vnet) { s->core.has_vnet = false; trace_e1000e_cfg_support_virtio(false); return; } else { s->core.has_vnet = true; } for (i = 0; i < s->conf.peers.queues; i++) { nc = qemu_get_subqueue(s->nic, i); if (!nc->peer || !qemu_has_vnet_hdr(nc->peer)) { s->core.has_vnet = false; trace_e1000e_cfg_support_virtio(false); return; } } trace_e1000e_cfg_support_virtio(true); for (i = 0; i < s->conf.peers.queues; i++) { nc = qemu_get_subqueue(s->nic, i); qemu_set_vnet_hdr_len(nc->peer, sizeof(struct virtio_net_hdr)); qemu_using_vnet_hdr(nc->peer, true); } } static inline uint64_t e1000e_gen_dsn(uint8_t *mac) { return (uint64_t)(mac[5]) | (uint64_t)(mac[4]) << 8 | (uint64_t)(mac[3]) << 16 | (uint64_t)(0x00FF) << 24 | (uint64_t)(0x00FF) << 32 | (uint64_t)(mac[2]) << 40 | (uint64_t)(mac[1]) << 48 | (uint64_t)(mac[0]) << 56; } static int e1000e_add_pm_capability(PCIDevice *pdev, uint8_t offset, uint16_t pmc) { Error *local_err = NULL; int ret = pci_add_capability(pdev, PCI_CAP_ID_PM, offset, PCI_PM_SIZEOF, &local_err); if (local_err) { error_report_err(local_err); return ret; } pci_set_word(pdev->config + offset + PCI_PM_PMC, PCI_PM_CAP_VER_1_1 | pmc); pci_set_word(pdev->wmask + offset + PCI_PM_CTRL, PCI_PM_CTRL_STATE_MASK | PCI_PM_CTRL_PME_ENABLE | PCI_PM_CTRL_DATA_SEL_MASK); pci_set_word(pdev->w1cmask + offset + PCI_PM_CTRL, PCI_PM_CTRL_PME_STATUS); return ret; } static void e1000e_write_config(PCIDevice *pci_dev, uint32_t address, uint32_t val, int len) { E1000EState *s = E1000E(pci_dev); pci_default_write_config(pci_dev, address, val, len); if (range_covers_byte(address, len, PCI_COMMAND) && (pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { e1000e_start_recv(&s->core); } } static void e1000e_pci_realize(PCIDevice *pci_dev, Error **errp) { static const uint16_t e1000e_pmrb_offset = 0x0C8; static const uint16_t e1000e_pcie_offset = 0x0E0; static const uint16_t e1000e_aer_offset = 0x100; static const uint16_t e1000e_dsn_offset = 0x140; E1000EState *s = E1000E(pci_dev); uint8_t *macaddr; int ret; trace_e1000e_cb_pci_realize(); pci_dev->config_write = e1000e_write_config; pci_dev->config[PCI_CACHE_LINE_SIZE] = 0x10; pci_dev->config[PCI_INTERRUPT_PIN] = 1; pci_set_word(pci_dev->config + PCI_SUBSYSTEM_VENDOR_ID, s->subsys_ven); pci_set_word(pci_dev->config + PCI_SUBSYSTEM_ID, s->subsys); s->subsys_ven_used = s->subsys_ven; s->subsys_used = s->subsys; /* Define IO/MMIO regions */ memory_region_init_io(&s->mmio, OBJECT(s), &mmio_ops, s, "e1000e-mmio", E1000E_MMIO_SIZE); pci_register_bar(pci_dev, E1000E_MMIO_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mmio); /* * We provide a dummy implementation for the flash BAR * for drivers that may theoretically probe for its presence. */ memory_region_init(&s->flash, OBJECT(s), "e1000e-flash", E1000E_FLASH_SIZE); pci_register_bar(pci_dev, E1000E_FLASH_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->flash); memory_region_init_io(&s->io, OBJECT(s), &io_ops, s, "e1000e-io", E1000E_IO_SIZE); pci_register_bar(pci_dev, E1000E_IO_IDX, PCI_BASE_ADDRESS_SPACE_IO, &s->io); memory_region_init(&s->msix, OBJECT(s), "e1000e-msix", E1000E_MSIX_SIZE); pci_register_bar(pci_dev, E1000E_MSIX_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->msix); /* Create networking backend */ qemu_macaddr_default_if_unset(&s->conf.macaddr); macaddr = s->conf.macaddr.a; e1000e_init_msix(s); if (pcie_endpoint_cap_v1_init(pci_dev, e1000e_pcie_offset) < 0) { hw_error("Failed to initialize PCIe capability"); } ret = msi_init(PCI_DEVICE(s), 0xD0, 1, true, false, NULL); if (ret) { trace_e1000e_msi_init_fail(ret); } if (e1000e_add_pm_capability(pci_dev, e1000e_pmrb_offset, PCI_PM_CAP_DSI) < 0) { hw_error("Failed to initialize PM capability"); } if (pcie_aer_init(pci_dev, PCI_ERR_VER, e1000e_aer_offset, PCI_ERR_SIZEOF, NULL) < 0) { hw_error("Failed to initialize AER capability"); } pcie_dev_ser_num_init(pci_dev, e1000e_dsn_offset, e1000e_gen_dsn(macaddr)); e1000e_init_net_peer(s, pci_dev, macaddr); /* Initialize core */ e1000e_core_realize(s); e1000e_core_pci_realize(&s->core, e1000e_eeprom_template, sizeof(e1000e_eeprom_template), macaddr); } static void e1000e_pci_uninit(PCIDevice *pci_dev) { E1000EState *s = E1000E(pci_dev); trace_e1000e_cb_pci_uninit(); e1000e_core_pci_uninit(&s->core); pcie_aer_exit(pci_dev); pcie_cap_exit(pci_dev); qemu_del_nic(s->nic); e1000e_cleanup_msix(s); msi_uninit(pci_dev); } static void e1000e_qdev_reset(DeviceState *dev) { E1000EState *s = E1000E(dev); trace_e1000e_cb_qdev_reset(); e1000e_core_reset(&s->core); } static int e1000e_pre_save(void *opaque) { E1000EState *s = opaque; trace_e1000e_cb_pre_save(); e1000e_core_pre_save(&s->core); return 0; } static int e1000e_post_load(void *opaque, int version_id) { E1000EState *s = opaque; trace_e1000e_cb_post_load(); if ((s->subsys != s->subsys_used) || (s->subsys_ven != s->subsys_ven_used)) { fprintf(stderr, "ERROR: Cannot migrate while device properties " "(subsys/subsys_ven) differ"); return -1; } return e1000e_core_post_load(&s->core); } static const VMStateDescription e1000e_vmstate_tx = { .name = "e1000e-tx", .version_id = 1, .minimum_version_id = 1, .fields = (VMStateField[]) { VMSTATE_UINT8(sum_needed, struct e1000e_tx), VMSTATE_UINT8(props.ipcss, struct e1000e_tx), VMSTATE_UINT8(props.ipcso, struct e1000e_tx), VMSTATE_UINT16(props.ipcse, struct e1000e_tx), VMSTATE_UINT8(props.tucss, struct e1000e_tx), VMSTATE_UINT8(props.tucso, struct e1000e_tx), VMSTATE_UINT16(props.tucse, struct e1000e_tx), VMSTATE_UINT8(props.hdr_len, struct e1000e_tx), VMSTATE_UINT16(props.mss, struct e1000e_tx), VMSTATE_UINT32(props.paylen, struct e1000e_tx), VMSTATE_INT8(props.ip, struct e1000e_tx), VMSTATE_INT8(props.tcp, struct e1000e_tx), VMSTATE_BOOL(props.tse, struct e1000e_tx), VMSTATE_BOOL(cptse, struct e1000e_tx), VMSTATE_BOOL(skip_cp, struct e1000e_tx), VMSTATE_END_OF_LIST() } }; static const VMStateDescription e1000e_vmstate_intr_timer = { .name = "e1000e-intr-timer", .version_id = 1, .minimum_version_id = 1, .fields = (VMStateField[]) { VMSTATE_TIMER_PTR(timer, E1000IntrDelayTimer), VMSTATE_BOOL(running, E1000IntrDelayTimer), VMSTATE_END_OF_LIST() } }; #define VMSTATE_E1000E_INTR_DELAY_TIMER(_f, _s) \ VMSTATE_STRUCT(_f, _s, 0, \ e1000e_vmstate_intr_timer, E1000IntrDelayTimer) #define VMSTATE_E1000E_INTR_DELAY_TIMER_ARRAY(_f, _s, _num) \ VMSTATE_STRUCT_ARRAY(_f, _s, _num, 0, \ e1000e_vmstate_intr_timer, E1000IntrDelayTimer) static const VMStateDescription e1000e_vmstate = { .name = "e1000e", .version_id = 1, .minimum_version_id = 1, .pre_save = e1000e_pre_save, .post_load = e1000e_post_load, .fields = (VMStateField[]) { VMSTATE_PCI_DEVICE(parent_obj, E1000EState), VMSTATE_MSIX(parent_obj, E1000EState), VMSTATE_UINT32(ioaddr, E1000EState), VMSTATE_UINT32(core.rxbuf_min_shift, E1000EState), VMSTATE_UINT8(core.rx_desc_len, E1000EState), VMSTATE_UINT32_ARRAY(core.rxbuf_sizes, E1000EState, E1000_PSRCTL_BUFFS_PER_DESC), VMSTATE_UINT32(core.rx_desc_buf_size, E1000EState), VMSTATE_UINT16_ARRAY(core.eeprom, E1000EState, E1000E_EEPROM_SIZE), VMSTATE_UINT16_2DARRAY(core.phy, E1000EState, E1000E_PHY_PAGES, E1000E_PHY_PAGE_SIZE), VMSTATE_UINT32_ARRAY(core.mac, E1000EState, E1000E_MAC_SIZE), VMSTATE_UINT8_ARRAY(core.permanent_mac, E1000EState, ETH_ALEN), VMSTATE_UINT32(core.delayed_causes, E1000EState), VMSTATE_UINT16(subsys, E1000EState), VMSTATE_UINT16(subsys_ven, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER(core.rdtr, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER(core.radv, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER(core.raid, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER(core.tadv, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER(core.tidv, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER(core.itr, E1000EState), VMSTATE_BOOL(core.itr_intr_pending, E1000EState), VMSTATE_E1000E_INTR_DELAY_TIMER_ARRAY(core.eitr, E1000EState, E1000E_MSIX_VEC_NUM), VMSTATE_BOOL_ARRAY(core.eitr_intr_pending, E1000EState, E1000E_MSIX_VEC_NUM), VMSTATE_UINT32(core.itr_guest_value, E1000EState), VMSTATE_UINT32_ARRAY(core.eitr_guest_value, E1000EState, E1000E_MSIX_VEC_NUM), VMSTATE_UINT16(core.vet, E1000EState), VMSTATE_STRUCT_ARRAY(core.tx, E1000EState, E1000E_NUM_QUEUES, 0, e1000e_vmstate_tx, struct e1000e_tx), VMSTATE_END_OF_LIST() } }; static PropertyInfo e1000e_prop_disable_vnet, e1000e_prop_subsys_ven, e1000e_prop_subsys; static Property e1000e_properties[] = { DEFINE_NIC_PROPERTIES(E1000EState, conf), DEFINE_PROP_SIGNED("disable_vnet_hdr", E1000EState, disable_vnet, false, e1000e_prop_disable_vnet, bool), DEFINE_PROP_SIGNED("subsys_ven", E1000EState, subsys_ven, PCI_VENDOR_ID_INTEL, e1000e_prop_subsys_ven, uint16_t), DEFINE_PROP_SIGNED("subsys", E1000EState, subsys, 0, e1000e_prop_subsys, uint16_t), DEFINE_PROP_END_OF_LIST(), }; static void e1000e_class_init(ObjectClass *class, void *data) { DeviceClass *dc = DEVICE_CLASS(class); PCIDeviceClass *c = PCI_DEVICE_CLASS(class); c->realize = e1000e_pci_realize; c->exit = e1000e_pci_uninit; c->vendor_id = PCI_VENDOR_ID_INTEL; c->device_id = E1000_DEV_ID_82574L; c->revision = 0; c->romfile = "efi-e1000e.rom"; c->class_id = PCI_CLASS_NETWORK_ETHERNET; dc->desc = "Intel 82574L GbE Controller"; dc->reset = e1000e_qdev_reset; dc->vmsd = &e1000e_vmstate; dc->props = e1000e_properties; e1000e_prop_disable_vnet = qdev_prop_uint8; e1000e_prop_disable_vnet.description = "Do not use virtio headers, " "perform SW offloads emulation " "instead"; e1000e_prop_subsys_ven = qdev_prop_uint16; e1000e_prop_subsys_ven.description = "PCI device Subsystem Vendor ID"; e1000e_prop_subsys = qdev_prop_uint16; e1000e_prop_subsys.description = "PCI device Subsystem ID"; set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); } static void e1000e_instance_init(Object *obj) { E1000EState *s = E1000E(obj); device_add_bootindex_property(obj, &s->conf.bootindex, "bootindex", "/ethernet-phy@0", DEVICE(obj), NULL); } static const TypeInfo e1000e_info = { .name = TYPE_E1000E, .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(E1000EState), .class_init = e1000e_class_init, .instance_init = e1000e_instance_init, .interfaces = (InterfaceInfo[]) { { INTERFACE_PCIE_DEVICE }, { } }, }; static void e1000e_register_types(void) { type_register_static(&e1000e_info); } type_init(e1000e_register_types)