diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/net/Makefile.objs | 1 | ||||
| -rw-r--r-- | hw/net/e1000_regs.h | 4 | ||||
| -rw-r--r-- | hw/net/e1000e.c | 739 | ||||
| -rw-r--r-- | hw/net/e1000e_core.c | 3476 | ||||
| -rw-r--r-- | hw/net/e1000e_core.h | 146 |
5 files changed, 4366 insertions, 0 deletions
diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs index bc69948fed..fe61e9fb2b 100644 --- a/hw/net/Makefile.objs +++ b/hw/net/Makefile.objs @@ -7,6 +7,7 @@ common-obj-$(CONFIG_EEPRO100_PCI) += eepro100.o common-obj-$(CONFIG_PCNET_PCI) += pcnet-pci.o common-obj-$(CONFIG_PCNET_COMMON) += pcnet.o common-obj-$(CONFIG_E1000_PCI) += e1000.o e1000x_common.o +common-obj-$(CONFIG_E1000E_PCI) += e1000e.o e1000e_core.o e1000x_common.o common-obj-$(CONFIG_RTL8139_PCI) += rtl8139.o common-obj-$(CONFIG_VMXNET3_PCI) += net_tx_pkt.o net_rx_pkt.o common-obj-$(CONFIG_VMXNET3_PCI) += vmxnet3.o diff --git a/hw/net/e1000_regs.h b/hw/net/e1000_regs.h index d62b3fa818..c1acd458f2 100644 --- a/hw/net/e1000_regs.h +++ b/hw/net/e1000_regs.h @@ -417,6 +417,10 @@ #define E1000_ICR_ASSERTED BIT(31) #define E1000_EIAC_MASK 0x01F00000 +/* [TR]DBAL and [TR]DLEN masks */ +#define E1000_XDBAL_MASK (~(BIT(4) - 1)) +#define E1000_XDLEN_MASK ((BIT(20) - 1) & (~(BIT(7) - 1))) + /* IVAR register parsing helpers */ #define E1000_IVAR_INT_ALLOC_VALID (0x8) diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c new file mode 100644 index 0000000000..61bcbb6083 --- /dev/null +++ b/hw/net/e1000e.c @@ -0,0 +1,739 @@ +/* +* 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 <dmitry@daynix.com> +* Leonid Bloch <leonid@daynix.com> +* Yan Vugenfirer <yan@daynix.com> +* +* 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 <http://www.gnu.org/licenses/>. +*/ + +#include "qemu/osdep.h" +#include "net/net.h" +#include "net/tap.h" +#include "qemu/range.h" +#include "sysemu/sysemu.h" +#include "hw/pci/msi.h" +#include "hw/pci/msix.h" + +#include "hw/net/e1000_regs.h" + +#include "e1000x_common.h" +#include "e1000e_core.h" + +#include "trace.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; + + uint32_t intr_state; + 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 * 1024) +#define E1000E_FLASH_SIZE (128 * 1024) +#define E1000E_IO_SIZE (32) +#define E1000E_MSIX_SIZE (16 * 1024) + +#define E1000E_MSIX_TABLE (0x0000) +#define E1000E_MSIX_PBA (0x2000) + +#define E1000E_USE_MSI BIT(0) +#define E1000E_USE_MSIX BIT(1) + +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; + 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; + + 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_OPTIONS_KIND_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_init_msi(E1000EState *s) +{ + int res; + + res = msi_init(PCI_DEVICE(s), + 0xD0, /* MSI capability offset */ + 1, /* MAC MSI interrupts */ + true, /* 64-bit message addresses supported */ + false); /* Per vector mask supported */ + + if (res > 0) { + s->intr_state |= E1000E_USE_MSI; + } else { + trace_e1000e_msi_init_fail(res); + } +} + +static void +e1000e_cleanup_msi(E1000EState *s) +{ + if (s->intr_state & E1000E_USE_MSI) { + msi_uninit(PCI_DEVICE(s)); + } +} + +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); + + 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); + } else { + s->intr_state |= E1000E_USE_MSIX; + } + } +} + +static void +e1000e_cleanup_msix(E1000EState *s) +{ + if (s->intr_state & E1000E_USE_MSIX) { + 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) +{ + int ret = pci_add_capability(pdev, PCI_CAP_ID_PM, offset, PCI_PM_SIZEOF); + + if (ret >= 0) { + 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)) { + qemu_flush_queued_packets(qemu_get_queue(s->nic)); + } +} + +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; + + 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"); + } + + e1000e_init_msi(s); + + 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, e1000e_aer_offset, PCI_ERR_SIZEOF) < 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); + e1000e_cleanup_msi(s); +} + +static void e1000e_qdev_reset(DeviceState *dev) +{ + E1000EState *s = E1000E(dev); + + trace_e1000e_cb_qdev_reset(); + + e1000e_core_reset(&s->core); +} + +static void e1000e_pre_save(void *opaque) +{ + E1000EState *s = opaque; + + trace_e1000e_cb_pre_save(); + + e1000e_core_pre_save(&s->core); +} + +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(props.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(props.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_PCIE_DEVICE(parent_obj, E1000EState), + VMSTATE_MSIX(parent_obj, E1000EState), + + VMSTATE_UINT32(ioaddr, E1000EState), + VMSTATE_UINT32(intr_state, 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_DEFAULT("disable_vnet_hdr", E1000EState, disable_vnet, false, + e1000e_prop_disable_vnet, bool), + DEFINE_PROP_DEFAULT("subsys_ven", E1000EState, subsys_ven, + PCI_VENDOR_ID_INTEL, + e1000e_prop_subsys_ven, uint16_t), + DEFINE_PROP_DEFAULT("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->class_id = PCI_CLASS_NETWORK_ETHERNET; + c->is_express = 1; + + 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, +}; + +static void e1000e_register_types(void) +{ + type_register_static(&e1000e_info); +} + +type_init(e1000e_register_types) diff --git a/hw/net/e1000e_core.c b/hw/net/e1000e_core.c new file mode 100644 index 0000000000..6a44ea1c3f --- /dev/null +++ b/hw/net/e1000e_core.c @@ -0,0 +1,3476 @@ +/* +* Core code for QEMU e1000e 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 <dmitry@daynix.com> +* Leonid Bloch <leonid@daynix.com> +* Yan Vugenfirer <yan@daynix.com> +* +* 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 <http://www.gnu.org/licenses/>. +*/ + +#include "qemu/osdep.h" +#include "sysemu/sysemu.h" +#include "net/net.h" +#include "net/tap.h" +#include "hw/pci/msi.h" +#include "hw/pci/msix.h" + +#include "net_tx_pkt.h" +#include "net_rx_pkt.h" + +#include "e1000x_common.h" +#include "e1000e_core.h" + +#include "trace.h" + +#define E1000E_MIN_XITR (500) /* No more then 7813 interrupts per + second according to spec 10.2.4.2 */ +#define E1000E_MAX_TX_FRAGS (64) + +static void +e1000e_set_interrupt_cause(E1000ECore *core, uint32_t val); + +static inline void +e1000e_process_ts_option(E1000ECore *core, struct e1000_tx_desc *dp) +{ + if (le32_to_cpu(dp->upper.data) & E1000_TXD_EXTCMD_TSTAMP) { + trace_e1000e_wrn_no_ts_support(); + } +} + +static inline void +e1000e_process_snap_option(E1000ECore *core, uint32_t cmd_and_length) +{ + if (cmd_and_length & E1000_TXD_CMD_SNAP) { + trace_e1000e_wrn_no_snap_support(); + } +} + +static inline void +e1000e_raise_legacy_irq(E1000ECore *core) +{ + trace_e1000e_irq_legacy_notify(true); + e1000x_inc_reg_if_not_full(core->mac, IAC); + pci_set_irq(core->owner, 1); +} + +static inline void +e1000e_lower_legacy_irq(E1000ECore *core) +{ + trace_e1000e_irq_legacy_notify(false); + pci_set_irq(core->owner, 0); +} + +static inline void +e1000e_intrmgr_rearm_timer(E1000IntrDelayTimer *timer) +{ + int64_t delay_ns = (int64_t) timer->core->mac[timer->delay_reg] * + timer->delay_resolution_ns; + + trace_e1000e_irq_rearm_timer(timer->delay_reg << 2, delay_ns); + + timer_mod(timer->timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + delay_ns); + + timer->running = true; +} + +static void +e1000e_intmgr_timer_resume(E1000IntrDelayTimer *timer) +{ + if (timer->running) { + e1000e_intrmgr_rearm_timer(timer); + } +} + +static void +e1000e_intmgr_timer_pause(E1000IntrDelayTimer *timer) +{ + if (timer->running) { + timer_del(timer->timer); + } +} + +static inline void +e1000e_intrmgr_stop_timer(E1000IntrDelayTimer *timer) +{ + if (timer->running) { + timer_del(timer->timer); + timer->running = false; + } +} + +static inline void +e1000e_intrmgr_fire_delayed_interrupts(E1000ECore *core) +{ + trace_e1000e_irq_fire_delayed_interrupts(); + e1000e_set_interrupt_cause(core, 0); +} + +static void +e1000e_intrmgr_on_timer(void *opaque) +{ + E1000IntrDelayTimer *timer = opaque; + + trace_e1000e_irq_throttling_timer(timer->delay_reg << 2); + + timer->running = false; + e1000e_intrmgr_fire_delayed_interrupts(timer->core); +} + +static void +e1000e_intrmgr_on_throttling_timer(void *opaque) +{ + E1000IntrDelayTimer *timer = opaque; + + assert(!msix_enabled(timer->core->owner)); + + timer->running = false; + + if (!timer->core->itr_intr_pending) { + trace_e1000e_irq_throttling_no_pending_interrupts(); + return; + } + + if (msi_enabled(timer->core->owner)) { + trace_e1000e_irq_msi_notify_postponed(); + e1000e_set_interrupt_cause(timer->core, 0); + } else { + trace_e1000e_irq_legacy_notify_postponed(); + e1000e_set_interrupt_cause(timer->core, 0); + } +} + +static void +e1000e_intrmgr_on_msix_throttling_timer(void *opaque) +{ + E1000IntrDelayTimer *timer = opaque; + int idx = timer - &timer->core->eitr[0]; + + assert(msix_enabled(timer->core->owner)); + + timer->running = false; + + if (!timer->core->eitr_intr_pending[idx]) { + trace_e1000e_irq_throttling_no_pending_vec(idx); + return; + } + + trace_e1000e_irq_msix_notify_postponed_vec(idx); + msix_notify(timer->core->owner, idx); +} + +static void +e1000e_intrmgr_initialize_all_timers(E1000ECore *core, bool create) +{ + int i; + + core->radv.delay_reg = RADV; + core->rdtr.delay_reg = RDTR; + core->raid.delay_reg = RAID; + core->tadv.delay_reg = TADV; + core->tidv.delay_reg = TIDV; + + core->radv.delay_resolution_ns = E1000_INTR_DELAY_NS_RES; + core->rdtr.delay_resolution_ns = E1000_INTR_DELAY_NS_RES; + core->raid.delay_resolution_ns = E1000_INTR_DELAY_NS_RES; + core->tadv.delay_resolution_ns = E1000_INTR_DELAY_NS_RES; + core->tidv.delay_resolution_ns = E1000_INTR_DELAY_NS_RES; + + core->radv.core = core; + core->rdtr.core = core; + core->raid.core = core; + core->tadv.core = core; + core->tidv.core = core; + + core->itr.core = core; + core->itr.delay_reg = ITR; + core->itr.delay_resolution_ns = E1000_INTR_THROTTLING_NS_RES; + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + core->eitr[i].core = core; + core->eitr[i].delay_reg = EITR + i; + core->eitr[i].delay_resolution_ns = E1000_INTR_THROTTLING_NS_RES; + } + + if (!create) { + return; + } + + core->radv.timer = + timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000e_intrmgr_on_timer, &core->radv); + core->rdtr.timer = + timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000e_intrmgr_on_timer, &core->rdtr); + core->raid.timer = + timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000e_intrmgr_on_timer, &core->raid); + + core->tadv.timer = + timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000e_intrmgr_on_timer, &core->tadv); + core->tidv.timer = + timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000e_intrmgr_on_timer, &core->tidv); + + core->itr.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, + e1000e_intrmgr_on_throttling_timer, + &core->itr); + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + core->eitr[i].timer = + timer_new_ns(QEMU_CLOCK_VIRTUAL, + e1000e_intrmgr_on_msix_throttling_timer, + &core->eitr[i]); + } +} + +static inline void +e1000e_intrmgr_stop_delay_timers(E1000ECore *core) +{ + e1000e_intrmgr_stop_timer(&core->radv); + e1000e_intrmgr_stop_timer(&core->rdtr); + e1000e_intrmgr_stop_timer(&core->raid); + e1000e_intrmgr_stop_timer(&core->tidv); + e1000e_intrmgr_stop_timer(&core->tadv); +} + +static bool +e1000e_intrmgr_delay_rx_causes(E1000ECore *core, uint32_t *causes) +{ + uint32_t delayable_causes; + uint32_t rdtr = core->mac[RDTR]; + uint32_t radv = core->mac[RADV]; + uint32_t raid = core->mac[RAID]; + + if (msix_enabled(core->owner)) { + return false; + } + + delayable_causes = E1000_ICR_RXQ0 | + E1000_ICR_RXQ1 | + E1000_ICR_RXT0; + + if (!(core->mac[RFCTL] & E1000_RFCTL_ACK_DIS)) { + delayable_causes |= E1000_ICR_ACK; + } + + /* Clean up all causes that may be delayed */ + core->delayed_causes |= *causes & delayable_causes; + *causes &= ~delayable_causes; + + /* Check if delayed RX interrupts disabled by client + or if there are causes that cannot be delayed */ + if ((rdtr == 0) || (causes != 0)) { + return false; + } + + /* Check if delayed RX ACK interrupts disabled by client + and there is an ACK packet received */ + if ((raid == 0) && (core->delayed_causes & E1000_ICR_ACK)) { + return false; + } + + /* All causes delayed */ + e1000e_intrmgr_rearm_timer(&core->rdtr); + + if (!core->radv.running && (radv != 0)) { + e1000e_intrmgr_rearm_timer(&core->radv); + } + + if (!core->raid.running && (core->delayed_causes & E1000_ICR_ACK)) { + e1000e_intrmgr_rearm_timer(&core->raid); + } + + return true; +} + +static bool +e1000e_intrmgr_delay_tx_causes(E1000ECore *core, uint32_t *causes) +{ + static const uint32_t delayable_causes = E1000_ICR_TXQ0 | + E1000_ICR_TXQ1 | + E1000_ICR_TXQE | + E1000_ICR_TXDW; + + if (msix_enabled(core->owner)) { + return false; + } + + /* Clean up all causes that may be delayed */ + core->delayed_causes |= *causes & delayable_causes; + *causes &= ~delayable_causes; + + /* If there are causes that cannot be delayed */ + if (causes != 0) { + return false; + } + + /* All causes delayed */ + e1000e_intrmgr_rearm_timer(&core->tidv); + + if (!core->tadv.running && (core->mac[TADV] != 0)) { + e1000e_intrmgr_rearm_timer(&core->tadv); + } + + return true; +} + +static uint32_t +e1000e_intmgr_collect_delayed_causes(E1000ECore *core) +{ + uint32_t res; + + if (msix_enabled(core->owner)) { + assert(core->delayed_causes == 0); + return 0; + } + + res = core->delayed_causes; + core->delayed_causes = 0; + + e1000e_intrmgr_stop_delay_timers(core); + + return res; +} + +static void +e1000e_intrmgr_fire_all_timers(E1000ECore *core) +{ + int i; + uint32_t val = e1000e_intmgr_collect_delayed_causes(core); + + trace_e1000e_irq_adding_delayed_causes(val, core->mac[ICR]); + core->mac[ICR] |= val; + + if (core->itr.running) { + timer_del(core->itr.timer); + e1000e_intrmgr_on_throttling_timer(&core->itr); + } + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + if (core->eitr[i].running) { + timer_del(core->eitr[i].timer); + e1000e_intrmgr_on_msix_throttling_timer(&core->eitr[i]); + } + } +} + +static void +e1000e_intrmgr_resume(E1000ECore *core) +{ + int i; + + e1000e_intmgr_timer_resume(&core->radv); + e1000e_intmgr_timer_resume(&core->rdtr); + e1000e_intmgr_timer_resume(&core->raid); + e1000e_intmgr_timer_resume(&core->tidv); + e1000e_intmgr_timer_resume(&core->tadv); + + e1000e_intmgr_timer_resume(&core->itr); + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + e1000e_intmgr_timer_resume(&core->eitr[i]); + } +} + +static void +e1000e_intrmgr_pause(E1000ECore *core) +{ + int i; + + e1000e_intmgr_timer_pause(&core->radv); + e1000e_intmgr_timer_pause(&core->rdtr); + e1000e_intmgr_timer_pause(&core->raid); + e1000e_intmgr_timer_pause(&core->tidv); + e1000e_intmgr_timer_pause(&core->tadv); + + e1000e_intmgr_timer_pause(&core->itr); + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + e1000e_intmgr_timer_pause(&core->eitr[i]); + } +} + +static void +e1000e_intrmgr_reset(E1000ECore *core) +{ + int i; + + core->delayed_causes = 0; + + e1000e_intrmgr_stop_delay_timers(core); + + e1000e_intrmgr_stop_timer(&core->itr); + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + e1000e_intrmgr_stop_timer(&core->eitr[i]); + } +} + +static void +e1000e_intrmgr_pci_unint(E1000ECore *core) +{ + int i; + + timer_del(core->radv.timer); + timer_free(core->radv.timer); + timer_del(core->rdtr.timer); + timer_free(core->rdtr.timer); + timer_del(core->raid.timer); + timer_free(core->raid.timer); + + timer_del(core->tadv.timer); + timer_free(core->tadv.timer); + timer_del(core->tidv.timer); + timer_free(core->tidv.timer); + + timer_del(core->itr.timer); + timer_free(core->itr.timer); + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + timer_del(core->eitr[i].timer); + timer_free(core->eitr[i].timer); + } +} + +static void +e1000e_intrmgr_pci_realize(E1000ECore *core) +{ + e1000e_intrmgr_initialize_all_timers(core, true); +} + +static inline bool +e1000e_rx_csum_enabled(E1000ECore *core) +{ + return (core->mac[RXCSUM] & E1000_RXCSUM_PCSD) ? false : true; +} + +static inline bool +e1000e_rx_use_legacy_descriptor(E1000ECore *core) +{ + return (core->mac[RFCTL] & E1000_RFCTL_EXTEN) ? false : true; +} + +static inline bool +e1000e_rx_use_ps_descriptor(E1000ECore *core) +{ + return !e1000e_rx_use_legacy_descriptor(core) && + (core->mac[RCTL] & E1000_RCTL_DTYP_PS); +} + +static inline bool +e1000e_rss_enabled(E1000ECore *core) +{ + return E1000_MRQC_ENABLED(core->mac[MRQC]) && + !e1000e_rx_csum_enabled(core) && + !e1000e_rx_use_legacy_descriptor(core); +} + +typedef struct E1000E_RSSInfo_st { + bool enabled; + uint32_t hash; + uint32_t queue; + uint32_t type; +} E1000E_RSSInfo; + +static uint32_t +e1000e_rss_get_hash_type(E1000ECore *core, struct NetRxPkt *pkt) +{ + bool isip4, isip6, isudp, istcp; + + assert(e1000e_rss_enabled(core)); + + net_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp); + + if (isip4) { + bool fragment = net_rx_pkt_get_ip4_info(pkt)->fragment; + + trace_e1000e_rx_rss_ip4(fragment, istcp, core->mac[MRQC], + E1000_MRQC_EN_TCPIPV4(core->mac[MRQC]), + E1000_MRQC_EN_IPV4(core->mac[MRQC])); + + if (!fragment && istcp && E1000_MRQC_EN_TCPIPV4(core->mac[MRQC])) { + return E1000_MRQ_RSS_TYPE_IPV4TCP; + } + + if (E1000_MRQC_EN_IPV4(core->mac[MRQC])) { + return E1000_MRQ_RSS_TYPE_IPV4; + } + } else if (isip6) { + eth_ip6_hdr_info *ip6info = net_rx_pkt_get_ip6_info(pkt); + + bool ex_dis = core->mac[RFCTL] & E1000_RFCTL_IPV6_EX_DIS; + bool new_ex_dis = core->mac[RFCTL] & E1000_RFCTL_NEW_IPV6_EXT_DIS; + + trace_e1000e_rx_rss_ip6(core->mac[RFCTL], + ex_dis, new_ex_dis, istcp, + ip6info->has_ext_hdrs, + ip6info->rss_ex_dst_valid, + ip6info->rss_ex_src_valid, + core->mac[MRQC], + E1000_MRQC_EN_TCPIPV6(core->mac[MRQC]), + E1000_MRQC_EN_IPV6EX(core->mac[MRQC]), + E1000_MRQC_EN_IPV6(core->mac[MRQC])); + + if ((!ex_dis || !ip6info->has_ext_hdrs) && + (!new_ex_dis || !(ip6info->rss_ex_dst_valid || + ip6info->rss_ex_src_valid))) { + + if (istcp && !ip6info->fragment && + E1000_MRQC_EN_TCPIPV6(core->mac[MRQC])) { + return E1000_MRQ_RSS_TYPE_IPV6TCP; + } + + if (E1000_MRQC_EN_IPV6EX(core->mac[MRQC])) { + return E1000_MRQ_RSS_TYPE_IPV6EX; + } + + } + + if (E1000_MRQC_EN_IPV6(core->mac[MRQC])) { + return E1000_MRQ_RSS_TYPE_IPV6; + } + + } + + return E1000_MRQ_RSS_TYPE_NONE; +} + +static uint32_t +e1000e_rss_calc_hash(E1000ECore *core, + struct NetRxPkt *pkt, + E1000E_RSSInfo *info) +{ + NetRxPktRssType type; + + assert(e1000e_rss_enabled(core)); + + switch (info->type) { + case E1000_MRQ_RSS_TYPE_IPV4: + type = NetPktRssIpV4; + break; + case E1000_MRQ_RSS_TYPE_IPV4TCP: + type = NetPktRssIpV4Tcp; + break; + case E1000_MRQ_RSS_TYPE_IPV6TCP: + type = NetPktRssIpV6Tcp; + break; + case E1000_MRQ_RSS_TYPE_IPV6: + type = NetPktRssIpV6; + break; + case E1000_MRQ_RSS_TYPE_IPV6EX: + type = NetPktRssIpV6Ex; + break; + default: + assert(false); + return 0; + } + + return net_rx_pkt_calc_rss_hash(pkt, type, (uint8_t *) &core->mac[RSSRK]); +} + +static void +e1000e_rss_parse_packet(E1000ECore *core, + struct NetRxPkt *pkt, + E1000E_RSSInfo *info) +{ + trace_e1000e_rx_rss_started(); + + if (!e1000e_rss_enabled(core)) { + info->enabled = false; + info->hash = 0; + info->queue = 0; + info->type = 0; + trace_e1000e_rx_rss_disabled(); + return; + } + + info->enabled = true; + + info->type = e1000e_rss_get_hash_type(core, pkt); + + trace_e1000e_rx_rss_type(info->type); + + if (info->type == E1000_MRQ_RSS_TYPE_NONE) { + info->hash = 0; + info->queue = 0; + return; + } + + info->hash = e1000e_rss_calc_hash(core, pkt, info); + info->queue = E1000_RSS_QUEUE(&core->mac[RETA], info->hash); +} + +static void +e1000e_setup_tx_offloads(E1000ECore *core, struct e1000e_tx *tx) +{ + if (tx->props.tse && tx->props.cptse) { + net_tx_pkt_build_vheader(tx->tx_pkt, true, true, tx->props.mss); + net_tx_pkt_update_ip_checksums(tx->tx_pkt); + e1000x_inc_reg_if_not_full(core->mac, TSCTC); + return; + } + + if (tx->props.sum_needed & E1000_TXD_POPTS_TXSM) { + net_tx_pkt_build_vheader(tx->tx_pkt, false, true, 0); + } + + if (tx->props.sum_needed & E1000_TXD_POPTS_IXSM) { + net_tx_pkt_update_ip_hdr_checksum(tx->tx_pkt); + } +} + +static bool +e1000e_tx_pkt_send(E1000ECore *core, struct e1000e_tx *tx, int queue_index) +{ + int target_queue = MIN(core->max_queue_num, queue_index); + NetClientState *queue = qemu_get_subqueue(core->owner_nic, target_queue); + + e1000e_setup_tx_offloads(core, tx); + + net_tx_pkt_dump(tx->tx_pkt); + + if ((core->phy[0][PHY_CTRL] & MII_CR_LOOPBACK) || + ((core->mac[RCTL] & E1000_RCTL_LBM_MAC) == E1000_RCTL_LBM_MAC)) { + return net_tx_pkt_send_loopback(tx->tx_pkt, queue); + } else { + return net_tx_pkt_send(tx->tx_pkt, queue); + } +} + +static void +e1000e_on_tx_done_update_stats(E1000ECore *core, struct NetTxPkt *tx_pkt) +{ + static const int PTCregs[6] = { PTC64, PTC127, PTC255, PTC511, + PTC1023, PTC1522 }; + + size_t tot_len = net_tx_pkt_get_total_len(tx_pkt); + + e1000x_increase_size_stats(core->mac, PTCregs, tot_len); + e1000x_inc_reg_if_not_full(core->mac, TPT); + e1000x_grow_8reg_if_not_full(core->mac, TOTL, tot_len); + + switch (net_tx_pkt_get_packet_type(tx_pkt)) { + case ETH_PKT_BCAST: + e1000x_inc_reg_if_not_full(core->mac, BPTC); + break; + case ETH_PKT_MCAST: + e1000x_inc_reg_if_not_full(core->mac, MPTC); + break; + case ETH_PKT_UCAST: + break; + default: + g_assert_not_reached(); + } + + core->mac[GPTC] = core->mac[TPT]; + core->mac[GOTCL] = core->mac[TOTL]; + core->mac[GOTCH] = core->mac[TOTH]; +} + +static void +e1000e_process_tx_desc(E1000ECore *core, + struct e1000e_tx *tx, + struct e1000_tx_desc *dp, + int queue_index) +{ + uint32_t txd_lower = le32_to_cpu(dp->lower.data); + uint32_t dtype = txd_lower & (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D); + unsigned int split_size = txd_lower & 0xffff; + uint64_t addr; + struct e1000_context_desc *xp = (struct e1000_context_desc *)dp; + bool eop = txd_lower & E1000_TXD_CMD_EOP; + + if (dtype == E1000_TXD_CMD_DEXT) { /* context descriptor */ + e1000x_read_tx_ctx_descr(xp, &tx->props); + e1000e_process_snap_option(core, le32_to_cpu(xp->cmd_and_length)); + return; + } else if (dtype == (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D)) { + /* data descriptor */ + tx->props.sum_needed = le32_to_cpu(dp->upper.data) >> 8; + tx->props.cptse = (txd_lower & E1000_TXD_CMD_TSE) ? 1 : 0; + e1000e_process_ts_option(core, dp); + } else { + /* legacy descriptor */ + e1000e_process_ts_option(core, dp); + tx->props.cptse = 0; + } + + addr = le64_to_cpu(dp->buffer_addr); + + if (!tx->skip_cp) { + if (!net_tx_pkt_add_raw_fragment(tx->tx_pkt, addr, split_size)) { + tx->skip_cp = true; + } + } + + if (eop) { + if (!tx->skip_cp && net_tx_pkt_parse(tx->tx_pkt)) { + if (e1000x_vlan_enabled(core->mac) && + e1000x_is_vlan_txd(txd_lower)) { + net_tx_pkt_setup_vlan_header_ex(tx->tx_pkt, + le16_to_cpu(dp->upper.fields.special), core->vet); + } + if (e1000e_tx_pkt_send(core, tx, queue_index)) { + e1000e_on_tx_done_update_stats(core, tx->tx_pkt); + } + } + + tx->skip_cp = false; + net_tx_pkt_reset(tx->tx_pkt); + + tx->props.sum_needed = 0; + tx->props.cptse = 0; + } +} + +static inline uint32_t +e1000e_tx_wb_interrupt_cause(E1000ECore *core, int queue_idx) +{ + if (!msix_enabled(core->owner)) { + return E1000_ICR_TXDW; + } + + return (queue_idx == 0) ? E1000_ICR_TXQ0 : E1000_ICR_TXQ1; +} + +static inline uint32_t +e1000e_rx_wb_interrupt_cause(E1000ECore *core, int queue_idx, + bool min_threshold_hit) +{ + if (!msix_enabled(core->owner)) { + return E1000_ICS_RXT0 | (min_threshold_hit ? E1000_ICS_RXDMT0 : 0); + } + + return (queue_idx == 0) ? E1000_ICR_RXQ0 : E1000_ICR_RXQ1; +} + +static uint32_t +e1000e_txdesc_writeback(E1000ECore *core, dma_addr_t base, + struct e1000_tx_desc *dp, bool *ide, int queue_idx) +{ + uint32_t txd_upper, txd_lower = le32_to_cpu(dp->lower.data); + + if (!(txd_lower & E1000_TXD_CMD_RS) && + !(core->mac[IVAR] & E1000_IVAR_TX_INT_EVERY_WB)) { + return 0; + } + + *ide = (txd_lower & E1000_TXD_CMD_IDE) ? true : false; + + txd_upper = le32_to_cpu(dp->upper.data) | E1000_TXD_STAT_DD; + + dp->upper.data = cpu_to_le32(txd_upper); + pci_dma_write(core->owner, base + ((char *)&dp->upper - (char *)dp), + &dp->upper, sizeof(dp->upper)); + return e1000e_tx_wb_interrupt_cause(core, queue_idx); +} + +typedef struct E1000E_RingInfo_st { + int dbah; + int dbal; + int dlen; + int dh; + int dt; + int idx; +} E1000E_RingInfo; + +static inline bool +e1000e_ring_empty(E1000ECore *core, const E1000E_RingInfo *r) +{ + return core->mac[r->dh] == core->mac[r->dt]; +} + +static inline uint64_t +e1000e_ring_base(E1000ECore *core, const E1000E_RingInfo *r) +{ + uint64_t bah = core->mac[r->dbah]; + uint64_t bal = core->mac[r->dbal]; + + return (bah << 32) + bal; +} + +static inline uint64_t +e1000e_ring_head_descr(E1000ECore *core, const E1000E_RingInfo *r) +{ + return e1000e_ring_base(core, r) + E1000_RING_DESC_LEN * core->mac[r->dh]; +} + +static inline void +e1000e_ring_advance(E1000ECore *core, const E1000E_RingInfo *r, uint32_t count) +{ + core->mac[r->dh] += count; + + if (core->mac[r->dh] * E1000_RING_DESC_LEN >= core->mac[r->dlen]) { + core->mac[r->dh] = 0; + } +} + +static inline uint32_t +e1000e_ring_free_descr_num(E1000ECore *core, const E1000E_RingInfo *r) +{ + trace_e1000e_ring_free_space(r->idx, core->mac[r->dlen], + core->mac[r->dh], core->mac[r->dt]); + + if (core->mac[r->dh] <= core->mac[r->dt]) { + return core->mac[r->dt] - core->mac[r->dh]; + } + + if (core->mac[r->dh] > core->mac[r->dt]) { + return core->mac[r->dlen] / E1000_RING_DESC_LEN + + core->mac[r->dt] - core->mac[r->dh]; + } + + g_assert_not_reached(); + return 0; +} + +static inline bool +e1000e_ring_enabled(E1000ECore *core, const E1000E_RingInfo *r) +{ + return core->mac[r->dlen] > 0; +} + +static inline uint32_t +e1000e_ring_len(E1000ECore *core, const E1000E_RingInfo *r) +{ + return core->mac[r->dlen]; +} + +typedef struct E1000E_TxRing_st { + const E1000E_RingInfo *i; + struct e1000e_tx *tx; +} E1000E_TxRing; + +static inline int +e1000e_mq_queue_idx(int base_reg_idx, int reg_idx) +{ + return (reg_idx - base_reg_idx) / (0x100 >> 2); +} + +static inline void +e1000e_tx_ring_init(E1000ECore *core, E1000E_TxRing *txr, int idx) +{ + static const E1000E_RingInfo i[E1000E_NUM_QUEUES] = { + { TDBAH, TDBAL, TDLEN, TDH, TDT, 0 }, + { TDBAH1, TDBAL1, TDLEN1, TDH1, TDT1, 1 } + }; + + assert(idx < ARRAY_SIZE(i)); + + txr->i = &i[idx]; + txr->tx = &core->tx[idx]; +} + +typedef struct E1000E_RxRing_st { + const E1000E_RingInfo *i; +} E1000E_RxRing; + +static inline void +e1000e_rx_ring_init(E1000ECore *core, E1000E_RxRing *rxr, int idx) +{ + static const E1000E_RingInfo i[E1000E_NUM_QUEUES] = { + { RDBAH0, RDBAL0, RDLEN0, RDH0, RDT0, 0 }, + { RDBAH1, RDBAL1, RDLEN1, RDH1, RDT1, 1 } + }; + + assert(idx < ARRAY_SIZE(i)); + + rxr->i = &i[idx]; +} + +static void +e1000e_start_xmit(E1000ECore *core, const E1000E_TxRing *txr) +{ + dma_addr_t base; + struct e1000_tx_desc desc; + bool ide = false; + const E1000E_RingInfo *txi = txr->i; + uint32_t cause = E1000_ICS_TXQE; + + if (!(core->mac[TCTL] & E1000_TCTL_EN)) { + trace_e1000e_tx_disabled(); + return; + } + + while (!e1000e_ring_empty(core, txi)) { + base = e1000e_ring_head_descr(core, txi); + + pci_dma_read(core->owner, base, &desc, sizeof(desc)); + + trace_e1000e_tx_descr((void *)(intptr_t)desc.buffer_addr, + desc.lower.data, desc.upper.data); + + e1000e_process_tx_desc(core, txr->tx, &desc, txi->idx); + cause |= e1000e_txdesc_writeback(core, base, &desc, &ide, txi->idx); + + e1000e_ring_advance(core, txi, 1); + } + + if (!ide || !e1000e_intrmgr_delay_tx_causes(core, &cause)) { + e1000e_set_interrupt_cause(core, cause); + } +} + +static bool +e1000e_has_rxbufs(E1000ECore *core, const E1000E_RingInfo *r, + size_t total_size) +{ + uint32_t bufs = e1000e_ring_free_descr_num(core, r); + + trace_e1000e_rx_has_buffers(r->idx, bufs, total_size, + core->rx_desc_buf_size); + + return total_size <= bufs / (core->rx_desc_len / E1000_MIN_RX_DESC_LEN) * + core->rx_desc_buf_size; +} + +static inline void +e1000e_start_recv(E1000ECore *core) +{ + int i; + + trace_e1000e_rx_start_recv(); + + for (i = 0; i <= core->max_queue_num; i++) { + qemu_flush_queued_packets(qemu_get_subqueue(core->owner_nic, i)); + } +} + +int +e1000e_can_receive(E1000ECore *core) +{ + int i; + + if (!e1000x_rx_ready(core->owner, core->mac)) { + return false; + } + + for (i = 0; i < E1000E_NUM_QUEUES; i++) { + E1000E_RxRing rxr; + + e1000e_rx_ring_init(core, &rxr, i); + if (e1000e_ring_enabled(core, rxr.i) && + e1000e_has_rxbufs(core, rxr.i, 1)) { + trace_e1000e_rx_can_recv(); + return true; + } + } + + trace_e1000e_rx_can_recv_rings_full(); + return false; +} + +ssize_t +e1000e_receive(E1000ECore *core, const uint8_t *buf, size_t size) +{ + const struct iovec iov = { + .iov_base = (uint8_t *)buf, + .iov_len = size + }; + + return e1000e_receive_iov(core, &iov, 1); +} + +static inline bool +e1000e_rx_l3_cso_enabled(E1000ECore *core) +{ + return !!(core->mac[RXCSUM] & E1000_RXCSUM_IPOFLD); +} + +static inline bool +e1000e_rx_l4_cso_enabled(E1000ECore *core) +{ + return !!(core->mac[RXCSUM] & E1000_RXCSUM_TUOFLD); +} + +static bool +e1000e_receive_filter(E1000ECore *core, const uint8_t *buf, int size) +{ + uint32_t rctl = core->mac[RCTL]; + + if (e1000x_is_vlan_packet(buf, core->vet) && + e1000x_vlan_rx_filter_enabled(core->mac)) { + uint16_t vid = be16_to_cpup((uint16_t *)(buf + 14)); + uint32_t vfta = le32_to_cpup((uint32_t *)(core->mac + VFTA) + + ((vid >> 5) & 0x7f)); + if ((vfta & (1 << (vid & 0x1f))) == 0) { + trace_e1000e_rx_flt_vlan_mismatch(vid); + return false; + } else { + trace_e1000e_rx_flt_vlan_match(vid); + } + } + + switch (net_rx_pkt_get_packet_type(core->rx_pkt)) { + case ETH_PKT_UCAST: + if (rctl & E1000_RCTL_UPE) { + return true; /* promiscuous ucast */ + } + break; + + case ETH_PKT_BCAST: + if (rctl & E1000_RCTL_BAM) { + return true; /* broadcast enabled */ + } + break; + + case ETH_PKT_MCAST: + if (rctl & E1000_RCTL_MPE) { + return true; /* promiscuous mcast */ + } + break; + + default: + g_assert_not_reached(); + } + + return e1000x_rx_group_filter(core->mac, buf); +} + +static inline void +e1000e_read_lgcy_rx_descr(E1000ECore *core, uint8_t *desc, hwaddr *buff_addr) +{ + struct e1000_rx_desc *d = (struct e1000_rx_desc *) desc; + *buff_addr = le64_to_cpu(d->buffer_addr); +} + +static inline void +e1000e_read_ext_rx_descr(E1000ECore *core, uint8_t *desc, hwaddr *buff_addr) +{ + union e1000_rx_desc_extended *d = (union e1000_rx_desc_extended *) desc; + *buff_addr = le64_to_cpu(d->read.buffer_addr); +} + +static inline void +e1000e_read_ps_rx_descr(E1000ECore *core, uint8_t *desc, + hwaddr (*buff_addr)[MAX_PS_BUFFERS]) +{ + int i; + union e1000_rx_desc_packet_split *d = + (union e1000_rx_desc_packet_split *) desc; + + for (i = 0; i < MAX_PS_BUFFERS; i++) { + (*buff_addr)[i] = le64_to_cpu(d->read.buffer_addr[i]); + } + + trace_e1000e_rx_desc_ps_read((*buff_addr)[0], (*buff_addr)[1], + (*buff_addr)[2], (*buff_addr)[3]); +} + +static inline void +e1000e_read_rx_descr(E1000ECore *core, uint8_t *desc, + hwaddr (*buff_addr)[MAX_PS_BUFFERS]) +{ + if (e1000e_rx_use_legacy_descriptor(core)) { + e1000e_read_lgcy_rx_descr(core, desc, &(*buff_addr)[0]); + (*buff_addr)[1] = (*buff_addr)[2] = (*buff_addr)[3] = 0; + } else { + if (core->mac[RCTL] & E1000_RCTL_DTYP_PS) { + e1000e_read_ps_rx_descr(core, desc, buff_addr); + } else { + e1000e_read_ext_rx_descr(core, desc, &(*buff_addr)[0]); + (*buff_addr)[1] = (*buff_addr)[2] = (*buff_addr)[3] = 0; + } + } +} + +static void +e1000e_verify_csum_in_sw(E1000ECore *core, + struct NetRxPkt *pkt, + uint32_t *status_flags, + bool istcp, bool isudp) +{ + bool csum_valid; + uint32_t csum_error; + + if (e1000e_rx_l3_cso_enabled(core)) { + if (!net_rx_pkt_validate_l3_csum(pkt, &csum_valid)) { + trace_e1000e_rx_metadata_l3_csum_validation_failed(); + } else { + csum_error = csum_valid ? 0 : E1000_RXDEXT_STATERR_IPE; + *status_flags |= E1000_RXD_STAT_IPCS | csum_error; + } + } else { + trace_e1000e_rx_metadata_l3_cso_disabled(); + } + + if (!e1000e_rx_l4_cso_enabled(core)) { + trace_e1000e_rx_metadata_l4_cso_disabled(); + return; + } + + if (!net_rx_pkt_validate_l4_csum(pkt, &csum_valid)) { + trace_e1000e_rx_metadata_l4_csum_validation_failed(); + return; + } + + csum_error = csum_valid ? 0 : E1000_RXDEXT_STATERR_TCPE; + + if (istcp) { + *status_flags |= E1000_RXD_STAT_TCPCS | + csum_error; + } else if (isudp) { + *status_flags |= E1000_RXD_STAT_TCPCS | + E1000_RXD_STAT_UDPCS | + csum_error; + } +} + +static inline bool +e1000e_is_tcp_ack(E1000ECore *core, struct NetRxPkt *rx_pkt) +{ + if (!net_rx_pkt_is_tcp_ack(rx_pkt)) { + return false; + } + + if (core->mac[RFCTL] & E1000_RFCTL_ACK_DATA_DIS) { + return !net_rx_pkt_has_tcp_data(rx_pkt); + } + + return true; +} + +static void +e1000e_build_rx_metadata(E1000ECore *core, + struct NetRxPkt *pkt, + bool is_eop, + const E1000E_RSSInfo *rss_info, + uint32_t *rss, uint32_t *mrq, + uint32_t *status_flags, + uint16_t *ip_id, + uint16_t *vlan_tag) +{ + struct virtio_net_hdr *vhdr; + bool isip4, isip6, istcp, isudp; + uint32_t pkt_type; + + *status_flags = E1000_RXD_STAT_DD; + + /* No additional metadata needed for non-EOP descriptors */ + if (!is_eop) { + goto func_exit; + } + + *status_flags |= E1000_RXD_STAT_EOP; + + net_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp); + trace_e1000e_rx_metadata_protocols(isip4, isip6, isudp, istcp); + + /* VLAN state */ + if (net_rx_pkt_is_vlan_stripped(pkt)) { + *status_flags |= E1000_RXD_STAT_VP; + *vlan_tag = cpu_to_le16(net_rx_pkt_get_vlan_tag(pkt)); + trace_e1000e_rx_metadata_vlan(*vlan_tag); + } + + /* Packet parsing results */ + if ((core->mac[RXCSUM] & E1000_RXCSUM_PCSD) != 0) { + if (rss_info->enabled) { + *rss = cpu_to_le32(rss_info->hash); + *mrq = cpu_to_le32(rss_info->type | (rss_info->queue << 8)); + trace_e1000e_rx_metadata_rss(*rss, *mrq); + } + } else if (isip4) { + *status_flags |= E1000_RXD_STAT_IPIDV; + *ip_id = cpu_to_le16(net_rx_pkt_get_ip_id(pkt)); + trace_e1000e_rx_metadata_ip_id(*ip_id); + } + + if (istcp && e1000e_is_tcp_ack(core, pkt)) { + *status_flags |= E1000_RXD_STAT_ACK; + trace_e1000e_rx_metadata_ack(); + } + + if (isip6 && (core->mac[RFCTL] & E1000_RFCTL_IPV6_DIS)) { + trace_e1000e_rx_metadata_ipv6_filtering_disabled(); + pkt_type = E1000_RXD_PKT_MAC; + } else if (istcp || isudp) { + pkt_type = isip4 ? E1000_RXD_PKT_IP4_XDP : E1000_RXD_PKT_IP6_XDP; + } else if (isip4 || isip6) { + pkt_type = isip4 ? E1000_RXD_PKT_IP4 : E1000_RXD_PKT_IP6; + } else { + pkt_type = E1000_RXD_PKT_MAC; + } + + *status_flags |= E1000_RXD_PKT_TYPE(pkt_type); + trace_e1000e_rx_metadata_pkt_type(pkt_type); + + /* RX CSO information */ + if (isip6 && (core->mac[RFCTL] & E1000_RFCTL_IPV6_XSUM_DIS)) { + trace_e1000e_rx_metadata_ipv6_sum_disabled(); + goto func_exit; + } + + if (!net_rx_pkt_has_virt_hdr(pkt)) { + trace_e1000e_rx_metadata_no_virthdr(); + e1000e_verify_csum_in_sw(core, pkt, status_flags, istcp, isudp); + goto func_exit; + } + + vhdr = net_rx_pkt_get_vhdr(pkt); + + if (!(vhdr->flags & VIRTIO_NET_HDR_F_DATA_VALID) && + !(vhdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM)) { + trace_e1000e_rx_metadata_virthdr_no_csum_info(); + e1000e_verify_csum_in_sw(core, pkt, status_flags, istcp, isudp); + goto func_exit; + } + + if (e1000e_rx_l3_cso_enabled(core)) { + *status_flags |= isip4 ? E1000_RXD_STAT_IPCS : 0; + } else { + trace_e1000e_rx_metadata_l3_cso_disabled(); + } + + if (e1000e_rx_l4_cso_enabled(core)) { + if (istcp) { + *status_flags |= E1000_RXD_STAT_TCPCS; + } else if (isudp) { + *status_flags |= E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS; + } + } else { + trace_e1000e_rx_metadata_l4_cso_disabled(); + } + + trace_e1000e_rx_metadata_status_flags(*status_flags); + +func_exit: + *status_flags = cpu_to_le32(*status_flags); +} + +static inline void +e1000e_write_lgcy_rx_descr(E1000ECore *core, uint8_t *desc, + struct NetRxPkt *pkt, + const E1000E_RSSInfo *rss_info, + uint16_t length) +{ + uint32_t status_flags, rss, mrq; + uint16_t ip_id; + + struct e1000_rx_desc *d = (struct e1000_rx_desc *) desc; + + memset(d, 0, sizeof(*d)); + + assert(!rss_info->enabled); + + d->length = cpu_to_le16(length); + + e1000e_build_rx_metadata(core, pkt, pkt != NULL, + rss_info, + &rss, &mrq, + &status_flags, &ip_id, + &d->special); + d->errors = (uint8_t) (le32_to_cpu(status_flags) >> 24); + d->status = (uint8_t) le32_to_cpu(status_flags); +} + +static inline void +e1000e_write_ext_rx_descr(E1000ECore *core, uint8_t *desc, + struct NetRxPkt *pkt, + const E1000E_RSSInfo *rss_info, + uint16_t length) +{ + union e1000_rx_desc_extended *d = (union e1000_rx_desc_extended *) desc; + + memset(d, 0, sizeof(*d)); + + d->wb.upper.length = cpu_to_le16(length); + + e1000e_build_rx_metadata(core, pkt, pkt != NULL, + rss_info, + &d->wb.lower.hi_dword.rss, + &d->wb.lower.mrq, + &d->wb.upper.status_error, + &d->wb.lower.hi_dword.csum_ip.ip_id, + &d->wb.upper.vlan); +} + +static inline void +e1000e_write_ps_rx_descr(E1000ECore *core, uint8_t *desc, + struct NetRxPkt *pkt, + const E1000E_RSSInfo *rss_info, + size_t ps_hdr_len, + uint16_t(*written)[MAX_PS_BUFFERS]) +{ + int i; + union e1000_rx_desc_packet_split *d = + (union e1000_rx_desc_packet_split *) desc; + + memset(d, 0, sizeof(*d)); + + d->wb.middle.length0 = cpu_to_le16((*written)[0]); + + for (i = 0; i < PS_PAGE_BUFFERS; i++) { + d->wb.upper.length[i] = cpu_to_le16((*written)[i + 1]); + } + + e1000e_build_rx_metadata(core, pkt, pkt != NULL, + rss_info, + &d->wb.lower.hi_dword.rss, + &d->wb.lower.mrq, + &d->wb.middle.status_error, + &d->wb.lower.hi_dword.csum_ip.ip_id, + &d->wb.middle.vlan); + + d->wb.upper.header_status = + cpu_to_le16(ps_hdr_len | (ps_hdr_len ? E1000_RXDPS_HDRSTAT_HDRSP : 0)); + + trace_e1000e_rx_desc_ps_write((*written)[0], (*written)[1], + (*written)[2], (*written)[3]); +} + +static inline void +e1000e_write_rx_descr(E1000ECore *core, uint8_t *desc, +struct NetRxPkt *pkt, const E1000E_RSSInfo *rss_info, + size_t ps_hdr_len, uint16_t(*written)[MAX_PS_BUFFERS]) +{ + if (e1000e_rx_use_legacy_descriptor(core)) { + assert(ps_hdr_len == 0); + e1000e_write_lgcy_rx_descr(core, desc, pkt, rss_info, (*written)[0]); + } else { + if (core->mac[RCTL] & E1000_RCTL_DTYP_PS) { + e1000e_write_ps_rx_descr(core, desc, pkt, rss_info, + ps_hdr_len, written); + } else { + assert(ps_hdr_len == 0); + e1000e_write_ext_rx_descr(core, desc, pkt, rss_info, + (*written)[0]); + } + } +} + +typedef struct e1000e_ba_state_st { + uint16_t written[MAX_PS_BUFFERS]; + uint8_t cur_idx; +} e1000e_ba_state; + +static inline void +e1000e_write_hdr_to_rx_buffers(E1000ECore *core, + hwaddr (*ba)[MAX_PS_BUFFERS], + e1000e_ba_state *bastate, + const char *data, + dma_addr_t data_len) +{ + assert(data_len <= core->rxbuf_sizes[0] - bastate->written[0]); + + pci_dma_write(core->owner, (*ba)[0] + bastate->written[0], data, data_len); + bastate->written[0] += data_len; + + bastate->cur_idx = 1; +} + +static void +e1000e_write_to_rx_buffers(E1000ECore *core, + hwaddr (*ba)[MAX_PS_BUFFERS], + e1000e_ba_state *bastate, + const char *data, + dma_addr_t data_len) +{ + while (data_len > 0) { + uint32_t cur_buf_len = core->rxbuf_sizes[bastate->cur_idx]; + uint32_t cur_buf_bytes_left = cur_buf_len - + bastate->written[bastate->cur_idx]; + uint32_t bytes_to_write = MIN(data_len, cur_buf_bytes_left); + + trace_e1000e_rx_desc_buff_write(bastate->cur_idx, + (*ba)[bastate->cur_idx], + bastate->written[bastate->cur_idx], + data, + bytes_to_write); + + pci_dma_write(core->owner, + (*ba)[bastate->cur_idx] + bastate->written[bastate->cur_idx], + data, bytes_to_write); + + bastate->written[bastate->cur_idx] += bytes_to_write; + data += bytes_to_write; + data_len -= bytes_to_write; + + if (bastate->written[bastate->cur_idx] == cur_buf_len) { + bastate->cur_idx++; + } + + assert(bastate->cur_idx < MAX_PS_BUFFERS); + } +} + +static void +e1000e_update_rx_stats(E1000ECore *core, + size_t data_size, + size_t data_fcs_size) +{ + e1000x_update_rx_total_stats(core->mac, data_size, data_fcs_size); + + switch (net_rx_pkt_get_packet_type(core->rx_pkt)) { + case ETH_PKT_BCAST: + e1000x_inc_reg_if_not_full(core->mac, BPRC); + break; + + case ETH_PKT_MCAST: + e1000x_inc_reg_if_not_full(core->mac, MPRC); + break; + + default: + break; + } +} + +static inline bool +e1000e_rx_descr_threshold_hit(E1000ECore *core, const E1000E_RingInfo *rxi) +{ + return e1000e_ring_free_descr_num(core, rxi) == + e1000e_ring_len(core, rxi) >> core->rxbuf_min_shift; +} + +static bool +e1000e_do_ps(E1000ECore *core, struct NetRxPkt *pkt, size_t *hdr_len) +{ + bool isip4, isip6, isudp, istcp; + bool fragment; + + if (!e1000e_rx_use_ps_descriptor(core)) { + return false; + } + + net_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp); + + if (isip4) { + fragment = net_rx_pkt_get_ip4_info(pkt)->fragment; + } else if (isip6) { + fragment = net_rx_pkt_get_ip6_info(pkt)->fragment; + } else { + return false; + } + + if (fragment && (core->mac[RFCTL] & E1000_RFCTL_IPFRSP_DIS)) { + return false; + } + + if (!fragment && (isudp || istcp)) { + *hdr_len = net_rx_pkt_get_l5_hdr_offset(pkt); + } else { + *hdr_len = net_rx_pkt_get_l4_hdr_offset(pkt); + } + + if ((*hdr_len > core->rxbuf_sizes[0]) || + (*hdr_len > net_rx_pkt_get_total_len(pkt))) { + return false; + } + + return true; +} + +static void +e1000e_write_packet_to_guest(E1000ECore *core, struct NetRxPkt *pkt, + const E1000E_RxRing *rxr, + const E1000E_RSSInfo *rss_info) +{ + PCIDevice *d = core->owner; + dma_addr_t base; + uint8_t desc[E1000_MAX_RX_DESC_LEN]; + size_t desc_size; + size_t desc_offset = 0; + size_t iov_ofs = 0; + + struct iovec *iov = net_rx_pkt_get_iovec(pkt); + size_t size = net_rx_pkt_get_total_len(pkt); + size_t total_size = size + e1000x_fcs_len(core->mac); + const E1000E_RingInfo *rxi; + size_t ps_hdr_len = 0; + bool do_ps = e1000e_do_ps(core, pkt, &ps_hdr_len); + + rxi = rxr->i; + + do { + hwaddr ba[MAX_PS_BUFFERS]; + e1000e_ba_state bastate = { { 0 } }; + bool is_last = false; + bool is_first = true; + + desc_size = total_size - desc_offset; + + if (desc_size > core->rx_desc_buf_size) { + desc_size = core->rx_desc_buf_size; + } + + base = e1000e_ring_head_descr(core, rxi); + + pci_dma_read(d, base, &desc, core->rx_desc_len); + + trace_e1000e_rx_descr(rxi->idx, base, core->rx_desc_len); + + e1000e_read_rx_descr(core, desc, &ba); + + if (ba[0]) { + if (desc_offset < size) { + static const uint32_t fcs_pad; + size_t iov_copy; + size_t copy_size = size - desc_offset; + if (copy_size > core->rx_desc_buf_size) { + copy_size = core->rx_desc_buf_size; + } + + /* For PS mode copy the packet header first */ + if (do_ps) { + if (is_first) { + size_t ps_hdr_copied = 0; + do { + iov_copy = MIN(ps_hdr_len - ps_hdr_copied, + iov->iov_len - iov_ofs); + + e1000e_write_hdr_to_rx_buffers(core, &ba, &bastate, + iov->iov_base, iov_copy); + + copy_size -= iov_copy; + ps_hdr_copied += iov_copy; + + iov_ofs += iov_copy; + if (iov_ofs == iov->iov_len) { + iov++; + iov_ofs = 0; + } + } while (ps_hdr_copied < ps_hdr_len); + + is_first = false; + } else { + /* Leave buffer 0 of each descriptor except first */ + /* empty as per spec 7.1.5.1 */ + e1000e_write_hdr_to_rx_buffers(core, &ba, &bastate, + NULL, 0); + } + } + + /* Copy packet payload */ + while (copy_size) { + iov_copy = MIN(copy_size, iov->iov_len - iov_ofs); + + e1000e_write_to_rx_buffers(core, &ba, &bastate, + iov->iov_base + iov_ofs, iov_copy); + + copy_size -= iov_copy; + iov_ofs += iov_copy; + if (iov_ofs == iov->iov_len) { + iov++; + iov_ofs = 0; + } + } + + if (desc_offset + desc_size >= total_size) { + /* Simulate FCS checksum presence in the last descriptor */ + e1000e_write_to_rx_buffers(core, &ba, &bastate, + (const char *) &fcs_pad, e1000x_fcs_len(core->mac)); + } + } + desc_offset += desc_size; + if (desc_offset >= total_size) { + is_last = true; + } + } else { /* as per intel docs; skip descriptors with null buf addr */ + trace_e1000e_rx_null_descriptor(); + } + + e1000e_write_rx_descr(core, desc, is_last ? core->rx_pkt : NULL, + rss_info, do_ps ? ps_hdr_len : 0, &bastate.written); + pci_dma_write(d, base, &desc, core->rx_desc_len); + + e1000e_ring_advance(core, rxi, + core->rx_desc_len / E1000_MIN_RX_DESC_LEN); + + } while (desc_offset < total_size); + + e1000e_update_rx_stats(core, size, total_size); +} + +static inline void +e1000e_rx_fix_l4_csum(E1000ECore *core, struct NetRxPkt *pkt) +{ + if (net_rx_pkt_has_virt_hdr(pkt)) { + struct virtio_net_hdr *vhdr = net_rx_pkt_get_vhdr(pkt); + + if (vhdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) { + net_rx_pkt_fix_l4_csum(pkt); + } + } +} + +ssize_t +e1000e_receive_iov(E1000ECore *core, const struct iovec *iov, int iovcnt) +{ + static const int maximum_ethernet_hdr_len = (14 + 4); + /* Min. octets in an ethernet frame sans FCS */ + static const int min_buf_size = 60; + + uint32_t n = 0; + uint8_t min_buf[min_buf_size]; + struct iovec min_iov; + uint8_t *filter_buf; + size_t size, orig_size; + size_t iov_ofs = 0; + E1000E_RxRing rxr; + E1000E_RSSInfo rss_info; + size_t total_size; + ssize_t retval; + bool rdmts_hit; + + trace_e1000e_rx_receive_iov(iovcnt); + + if (!e1000x_hw_rx_enabled(core->mac)) { + return -1; + } + + /* Pull virtio header in */ + if (core->has_vnet) { + net_rx_pkt_set_vhdr_iovec(core->rx_pkt, iov, iovcnt); + iov_ofs = sizeof(struct virtio_net_hdr); + } + + filter_buf = iov->iov_base + iov_ofs; + orig_size = iov_size(iov, iovcnt); + size = orig_size - iov_ofs; + + /* Pad to minimum Ethernet frame length */ + if (size < sizeof(min_buf)) { + iov_to_buf(iov, iovcnt, iov_ofs, min_buf, size); + memset(&min_buf[size], 0, sizeof(min_buf) - size); + e1000x_inc_reg_if_not_full(core->mac, RUC); + min_iov.iov_base = filter_buf = min_buf; + min_iov.iov_len = size = sizeof(min_buf); + iovcnt = 1; + iov = &min_iov; + iov_ofs = 0; + } else if (iov->iov_len < maximum_ethernet_hdr_len) { + /* This is very unlikely, but may happen. */ + iov_to_buf(iov, iovcnt, iov_ofs, min_buf, maximum_ethernet_hdr_len); + filter_buf = min_buf; + } + + /* Discard oversized packets if !LPE and !SBP. */ + if (e1000x_is_oversized(core->mac, size)) { + return orig_size; + } + + net_rx_pkt_set_packet_type(core->rx_pkt, + get_eth_packet_type(PKT_GET_ETH_HDR(filter_buf))); + + if (!e1000e_receive_filter(core, filter_buf, size)) { + trace_e1000e_rx_flt_dropped(); + return orig_size; + } + + net_rx_pkt_attach_iovec_ex(core->rx_pkt, iov, iovcnt, iov_ofs, + e1000x_vlan_enabled(core->mac), core->vet); + + e1000e_rss_parse_packet(core, core->rx_pkt, &rss_info); + e1000e_rx_ring_init(core, &rxr, rss_info.queue); + + trace_e1000e_rx_rss_dispatched_to_queue(rxr.i->idx); + + total_size = net_rx_pkt_get_total_len(core->rx_pkt) + + e1000x_fcs_len(core->mac); + + if (e1000e_has_rxbufs(core, rxr.i, total_size)) { + e1000e_rx_fix_l4_csum(core, core->rx_pkt); + + e1000e_write_packet_to_guest(core, core->rx_pkt, &rxr, &rss_info); + + retval = orig_size; + + /* Perform small receive detection (RSRPD) */ + if (total_size < core->mac[RSRPD]) { + n |= E1000_ICS_SRPD; + } + + /* Perform ACK receive detection */ + if (e1000e_is_tcp_ack(core, core->rx_pkt)) { + n |= E1000_ICS_ACK; + } + + /* Check if receive descriptor minimum threshold hit */ + rdmts_hit = e1000e_rx_descr_threshold_hit(core, rxr.i); + n |= e1000e_rx_wb_interrupt_cause(core, rxr.i->idx, rdmts_hit); + + trace_e1000e_rx_written_to_guest(n); + } else { + n |= E1000_ICS_RXO; + retval = 0; + + trace_e1000e_rx_not_written_to_guest(n); + } + + if (!e1000e_intrmgr_delay_rx_causes(core, &n)) { + trace_e1000e_rx_interrupt_set(n); + e1000e_set_interrupt_cause(core, n); + } else { + trace_e1000e_rx_interrupt_delayed(n); + } + + return retval; +} + +static inline bool +e1000e_have_autoneg(E1000ECore *core) +{ + return core->phy[0][PHY_CTRL] & MII_CR_AUTO_NEG_EN; +} + +static void e1000e_update_flowctl_status(E1000ECore *core) +{ + if (e1000e_have_autoneg(core) && + core->phy[0][PHY_STATUS] & MII_SR_AUTONEG_COMPLETE) { + trace_e1000e_link_autoneg_flowctl(true); + core->mac[CTRL] |= E1000_CTRL_TFCE | E1000_CTRL_RFCE; + } else { + trace_e1000e_link_autoneg_flowctl(false); + } +} + +static inline void +e1000e_link_down(E1000ECore *core) +{ + e1000x_update_regs_on_link_down(core->mac, core->phy[0]); + e1000e_update_flowctl_status(core); +} + +static inline void +e1000e_set_phy_ctrl(E1000ECore *core, int index, uint16_t val) +{ + /* bits 0-5 reserved; MII_CR_[RESTART_AUTO_NEG,RESET] are self clearing */ + core->phy[0][PHY_CTRL] = val & ~(0x3f | + MII_CR_RESET | + MII_CR_RESTART_AUTO_NEG); + + if ((val & MII_CR_RESTART_AUTO_NEG) && + e1000e_have_autoneg(core)) { + e1000x_restart_autoneg(core->mac, core->phy[0], core->autoneg_timer); + } +} + +static void +e1000e_set_phy_oem_bits(E1000ECore *core, int index, uint16_t val) +{ + core->phy[0][PHY_OEM_BITS] = val & ~BIT(10); + + if (val & BIT(10)) { + e1000x_restart_autoneg(core->mac, core->phy[0], core->autoneg_timer); + } +} + +static void +e1000e_set_phy_page(E1000ECore *core, int index, uint16_t val) +{ + core->phy[0][PHY_PAGE] = val & PHY_PAGE_RW_MASK; +} + +void +e1000e_core_set_link_status(E1000ECore *core) +{ + NetClientState *nc = qemu_get_queue(core->owner_nic); + uint32_t old_status = core->mac[STATUS]; + + trace_e1000e_link_status_changed(nc->link_down ? false : true); + + if (nc->link_down) { + e1000x_update_regs_on_link_down(core->mac, core->phy[0]); + } else { + if (e1000e_have_autoneg(core) && + !(core->phy[0][PHY_STATUS] & MII_SR_AUTONEG_COMPLETE)) { + e1000x_restart_autoneg(core->mac, core->phy[0], + core->autoneg_timer); + } else { + e1000x_update_regs_on_link_up(core->mac, core->phy[0]); + } + } + + if (core->mac[STATUS] != old_status) { + e1000e_set_interrupt_cause(core, E1000_ICR_LSC); + } +} + +static void +e1000e_set_ctrl(E1000ECore *core, int index, uint32_t val) +{ + trace_e1000e_core_ctrl_write(index, val); + + /* RST is self clearing */ + core->mac[CTRL] = val & ~E1000_CTRL_RST; + core->mac[CTRL_DUP] = core->mac[CTRL]; + + trace_e1000e_link_set_params( + !!(val & E1000_CTRL_ASDE), + (val & E1000_CTRL_SPD_SEL) >> E1000_CTRL_SPD_SHIFT, + !!(val & E1000_CTRL_FRCSPD), + !!(val & E1000_CTRL_FRCDPX), + !!(val & E1000_CTRL_RFCE), + !!(val & E1000_CTRL_TFCE)); + + if (val & E1000_CTRL_RST) { + trace_e1000e_core_ctrl_sw_reset(); + e1000x_reset_mac_addr(core->owner_nic, core->mac, core->permanent_mac); + } + + if (val & E1000_CTRL_PHY_RST) { + trace_e1000e_core_ctrl_phy_reset(); + core->mac[STATUS] |= E1000_STATUS_PHYRA; + } +} + +static void +e1000e_set_rfctl(E1000ECore *core, int index, uint32_t val) +{ + trace_e1000e_rx_set_rfctl(val); + + if (!(val & E1000_RFCTL_ISCSI_DIS)) { + trace_e1000e_wrn_iscsi_filtering_not_supported(); + } + + if (!(val & E1000_RFCTL_NFSW_DIS)) { + trace_e1000e_wrn_nfsw_filtering_not_supported(); + } + + if (!(val & E1000_RFCTL_NFSR_DIS)) { + trace_e1000e_wrn_nfsr_filtering_not_supported(); + } + + core->mac[RFCTL] = val; +} + +static void +e1000e_calc_per_desc_buf_size(E1000ECore *core) +{ + int i; + core->rx_desc_buf_size = 0; + + for (i = 0; i < ARRAY_SIZE(core->rxbuf_sizes); i++) { + core->rx_desc_buf_size += core->rxbuf_sizes[i]; + } +} + +static void +e1000e_parse_rxbufsize(E1000ECore *core) +{ + uint32_t rctl = core->mac[RCTL]; + + memset(core->rxbuf_sizes, 0, sizeof(core->rxbuf_sizes)); + + if (rctl & E1000_RCTL_DTYP_MASK) { + uint32_t bsize; + + bsize = core->mac[PSRCTL] & E1000_PSRCTL_BSIZE0_MASK; + core->rxbuf_sizes[0] = (bsize >> E1000_PSRCTL_BSIZE0_SHIFT) * 128; + + bsize = core->mac[PSRCTL] & E1000_PSRCTL_BSIZE1_MASK; + core->rxbuf_sizes[1] = (bsize >> E1000_PSRCTL_BSIZE1_SHIFT) * 1024; + + bsize = core->mac[PSRCTL] & E1000_PSRCTL_BSIZE2_MASK; + core->rxbuf_sizes[2] = (bsize >> E1000_PSRCTL_BSIZE2_SHIFT) * 1024; + + bsize = core->mac[PSRCTL] & E1000_PSRCTL_BSIZE3_MASK; + core->rxbuf_sizes[3] = (bsize >> E1000_PSRCTL_BSIZE3_SHIFT) * 1024; + } else if (rctl & E1000_RCTL_FLXBUF_MASK) { + int flxbuf = rctl & E1000_RCTL_FLXBUF_MASK; + core->rxbuf_sizes[0] = (flxbuf >> E1000_RCTL_FLXBUF_SHIFT) * 1024; + } else { + core->rxbuf_sizes[0] = e1000x_rxbufsize(rctl); + } + + trace_e1000e_rx_desc_buff_sizes(core->rxbuf_sizes[0], core->rxbuf_sizes[1], + core->rxbuf_sizes[2], core->rxbuf_sizes[3]); + + e1000e_calc_per_desc_buf_size(core); +} + +static void +e1000e_calc_rxdesclen(E1000ECore *core) +{ + if (e1000e_rx_use_legacy_descriptor(core)) { + core->rx_desc_len = sizeof(struct e1000_rx_desc); + } else { + if (core->mac[RCTL] & E1000_RCTL_DTYP_PS) { + core->rx_desc_len = sizeof(union e1000_rx_desc_packet_split); + } else { + core->rx_desc_len = sizeof(union e1000_rx_desc_extended); + } + } + trace_e1000e_rx_desc_len(core->rx_desc_len); +} + +static void +e1000e_set_rx_control(E1000ECore *core, int index, uint32_t val) +{ + core->mac[RCTL] = val; + trace_e1000e_rx_set_rctl(core->mac[RCTL]); + + if (val & E1000_RCTL_EN) { + e1000e_parse_rxbufsize(core); + e1000e_calc_rxdesclen(core); + core->rxbuf_min_shift = ((val / E1000_RCTL_RDMTS_QUAT) & 3) + 1 + + E1000_RING_DESC_LEN_SHIFT; + + e1000e_start_recv(core); + } +} + +static +void(*e1000e_phyreg_writeops[E1000E_PHY_PAGES][E1000E_PHY_PAGE_SIZE]) +(E1000ECore *, int, uint16_t) = { + [0] = { + [PHY_CTRL] = e1000e_set_phy_ctrl, + [PHY_PAGE] = e1000e_set_phy_page, + [PHY_OEM_BITS] = e1000e_set_phy_oem_bits + } +}; + +static inline void +e1000e_clear_ims_bits(E1000ECore *core, uint32_t bits) +{ + trace_e1000e_irq_clear_ims(bits, core->mac[IMS], core->mac[IMS] & ~bits); + core->mac[IMS] &= ~bits; +} + +static inline bool +e1000e_postpone_interrupt(bool *interrupt_pending, + E1000IntrDelayTimer *timer) +{ + if (timer->running) { + trace_e1000e_irq_postponed_by_xitr(timer->delay_reg << 2); + + *interrupt_pending = true; + return true; + } + + if (timer->core->mac[timer->delay_reg] != 0) { + e1000e_intrmgr_rearm_timer(timer); + } + + return false; +} + +static inline bool +e1000e_itr_should_postpone(E1000ECore *core) +{ + return e1000e_postpone_interrupt(&core->itr_intr_pending, &core->itr); +} + +static inline bool +e1000e_eitr_should_postpone(E1000ECore *core, int idx) +{ + return e1000e_postpone_interrupt(&core->eitr_intr_pending[idx], + &core->eitr[idx]); +} + +static void +e1000e_msix_notify_one(E1000ECore *core, uint32_t cause, uint32_t int_cfg) +{ + uint32_t effective_eiac; + + if (E1000_IVAR_ENTRY_VALID(int_cfg)) { + uint32_t vec = E1000_IVAR_ENTRY_VEC(int_cfg); + if (vec < E1000E_MSIX_VEC_NUM) { + if (!e1000e_eitr_should_postpone(core, vec)) { + trace_e1000e_irq_msix_notify_vec(vec); + msix_notify(core->owner, vec); + } + } else { + trace_e1000e_wrn_msix_vec_wrong(cause, int_cfg); + } + } else { + trace_e1000e_wrn_msix_invalid(cause, int_cfg); + } + + if (core->mac[CTRL_EXT] & E1000_CTRL_EXT_EIAME) { + trace_e1000e_irq_ims_clear_eiame(core->mac[IAM], cause); + e1000e_clear_ims_bits(core, core->mac[IAM] & cause); + } + + trace_e1000e_irq_icr_clear_eiac(core->mac[ICR], core->mac[EIAC]); + + if (core->mac[EIAC] & E1000_ICR_OTHER) { + effective_eiac = (core->mac[EIAC] & E1000_EIAC_MASK) | + E1000_ICR_OTHER_CAUSES; + } else { + effective_eiac = core->mac[EIAC] & E1000_EIAC_MASK; + } + core->mac[ICR] &= ~effective_eiac; +} + +static void +e1000e_msix_notify(E1000ECore *core, uint32_t causes) +{ + if (causes & E1000_ICR_RXQ0) { + e1000e_msix_notify_one(core, E1000_ICR_RXQ0, + E1000_IVAR_RXQ0(core->mac[IVAR])); + } + + if (causes & E1000_ICR_RXQ1) { + e1000e_msix_notify_one(core, E1000_ICR_RXQ1, + E1000_IVAR_RXQ1(core->mac[IVAR])); + } + + if (causes & E1000_ICR_TXQ0) { + e1000e_msix_notify_one(core, E1000_ICR_TXQ0, + E1000_IVAR_TXQ0(core->mac[IVAR])); + } + + if (causes & E1000_ICR_TXQ1) { + e1000e_msix_notify_one(core, E1000_ICR_TXQ1, + E1000_IVAR_TXQ1(core->mac[IVAR])); + } + + if (causes & E1000_ICR_OTHER) { + e1000e_msix_notify_one(core, E1000_ICR_OTHER, + E1000_IVAR_OTHER(core->mac[IVAR])); + } +} + +static void +e1000e_msix_clear_one(E1000ECore *core, uint32_t cause, uint32_t int_cfg) +{ + if (E1000_IVAR_ENTRY_VALID(int_cfg)) { + uint32_t vec = E1000_IVAR_ENTRY_VEC(int_cfg); + if (vec < E1000E_MSIX_VEC_NUM) { + trace_e1000e_irq_msix_pending_clearing(cause, int_cfg, vec); + msix_clr_pending(core->owner, vec); + } else { + trace_e1000e_wrn_msix_vec_wrong(cause, int_cfg); + } + } else { + trace_e1000e_wrn_msix_invalid(cause, int_cfg); + } +} + +static void +e1000e_msix_clear(E1000ECore *core, uint32_t causes) +{ + if (causes & E1000_ICR_RXQ0) { + e1000e_msix_clear_one(core, E1000_ICR_RXQ0, + E1000_IVAR_RXQ0(core->mac[IVAR])); + } + + if (causes & E1000_ICR_RXQ1) { + e1000e_msix_clear_one(core, E1000_ICR_RXQ1, + E1000_IVAR_RXQ1(core->mac[IVAR])); + } + + if (causes & E1000_ICR_TXQ0) { + e1000e_msix_clear_one(core, E1000_ICR_TXQ0, + E1000_IVAR_TXQ0(core->mac[IVAR])); + } + + if (causes & E1000_ICR_TXQ1) { + e1000e_msix_clear_one(core, E1000_ICR_TXQ1, + E1000_IVAR_TXQ1(core->mac[IVAR])); + } + + if (causes & E1000_ICR_OTHER) { + e1000e_msix_clear_one(core, E1000_ICR_OTHER, + E1000_IVAR_OTHER(core->mac[IVAR])); + } +} + +static inline void +e1000e_fix_icr_asserted(E1000ECore *core) +{ + core->mac[ICR] &= ~E1000_ICR_ASSERTED; + if (core->mac[ICR]) { + core->mac[ICR] |= E1000_ICR_ASSERTED; + } + + trace_e1000e_irq_fix_icr_asserted(core->mac[ICR]); +} + +static void +e1000e_send_msi(E1000ECore *core, bool msix) +{ + uint32_t causes = core->mac[ICR] & core->mac[IMS] & ~E1000_ICR_ASSERTED; + + if (msix) { + e1000e_msix_notify(core, causes); + } else { + if (!e1000e_itr_should_postpone(core)) { + trace_e1000e_irq_msi_notify(causes); + msi_notify(core->owner, 0); + } + } +} + +static void +e1000e_update_interrupt_state(E1000ECore *core) +{ + bool interrupts_pending; + bool is_msix = msix_enabled(core->owner); + + /* Set ICR[OTHER] for MSI-X */ + if (is_msix) { + if (core->mac[ICR] & core->mac[IMS] & E1000_ICR_OTHER_CAUSES) { + core->mac[ICR] |= E1000_ICR_OTHER; + trace_e1000e_irq_add_msi_other(core->mac[ICR]); + } + } + + e1000e_fix_icr_asserted(core); + + /* + * Make sure ICR and ICS registers have the same value. + * The spec says that the ICS register is write-only. However in practice, + * on real hardware ICS is readable, and for reads it has the same value as + * ICR (except that ICS does not have the clear on read behaviour of ICR). + * + * The VxWorks PRO/1000 driver uses this behaviour. + */ + core->mac[ICS] = core->mac[ICR]; + + interrupts_pending = (core->mac[IMS] & core->mac[ICR]) ? true : false; + + trace_e1000e_irq_pending_interrupts(core->mac[ICR] & core->mac[IMS], + core->mac[ICR], core->mac[IMS]); + + if (is_msix || msi_enabled(core->owner)) { + if (interrupts_pending) { + e1000e_send_msi(core, is_msix); + } + } else { + if (interrupts_pending) { + if (!e1000e_itr_should_postpone(core)) { + e1000e_raise_legacy_irq(core); + } + } else { + e1000e_lower_legacy_irq(core); + } + } +} + +static inline void +e1000e_set_interrupt_cause(E1000ECore *core, uint32_t val) +{ + trace_e1000e_irq_set_cause_entry(val, core->mac[ICR]); + + val |= e1000e_intmgr_collect_delayed_causes(core); + core->mac[ICR] |= val; + + trace_e1000e_irq_set_cause_exit(val, core->mac[ICR]); + + e1000e_update_interrupt_state(core); +} + +static inline void +e1000e_autoneg_timer(void *opaque) +{ + E1000ECore *core = opaque; + if (!qemu_get_queue(core->owner_nic)->link_down) { + e1000x_update_regs_on_autoneg_done(core->mac, core->phy[0]); + e1000e_update_flowctl_status(core); + /* signal link status change to the guest */ + e1000e_set_interrupt_cause(core, E1000_ICR_LSC); + } +} + +static inline uint16_t +e1000e_get_reg_index_with_offset(const uint16_t *mac_reg_access, hwaddr addr) +{ + uint16_t index = (addr & 0x1ffff) >> 2; + return index + (mac_reg_access[index] & 0xfffe); +} + +static const char e1000e_phy_regcap[E1000E_PHY_PAGES][0x20] = { + [0] = { + [PHY_CTRL] = PHY_ANYPAGE | PHY_RW, + [PHY_STATUS] = PHY_ANYPAGE | PHY_R, + [PHY_ID1] = PHY_ANYPAGE | PHY_R, + [PHY_ID2] = PHY_ANYPAGE | PHY_R, + [PHY_AUTONEG_ADV] = PHY_ANYPAGE | PHY_RW, + [PHY_LP_ABILITY] = PHY_ANYPAGE | PHY_R, + [PHY_AUTONEG_EXP] = PHY_ANYPAGE | PHY_R, + [PHY_NEXT_PAGE_TX] = PHY_ANYPAGE | PHY_RW, + [PHY_LP_NEXT_PAGE] = PHY_ANYPAGE | PHY_R, + [PHY_1000T_CTRL] = PHY_ANYPAGE | PHY_RW, + [PHY_1000T_STATUS] = PHY_ANYPAGE | PHY_R, + [PHY_EXT_STATUS] = PHY_ANYPAGE | PHY_R, + [PHY_PAGE] = PHY_ANYPAGE | PHY_RW, + + [PHY_COPPER_CTRL1] = PHY_RW, + [PHY_COPPER_STAT1] = PHY_R, + [PHY_COPPER_CTRL3] = PHY_RW, + [PHY_RX_ERR_CNTR] = PHY_R, + [PHY_OEM_BITS] = PHY_RW, + [PHY_BIAS_1] = PHY_RW, + [PHY_BIAS_2] = PHY_RW, + [PHY_COPPER_INT_ENABLE] = PHY_RW, + [PHY_COPPER_STAT2] = PHY_R, + [PHY_COPPER_CTRL2] = PHY_RW + }, + [2] = { + [PHY_MAC_CTRL1] = PHY_RW, + [PHY_MAC_INT_ENABLE] = PHY_RW, + [PHY_MAC_STAT] = PHY_R, + [PHY_MAC_CTRL2] = PHY_RW + }, + [3] = { + [PHY_LED_03_FUNC_CTRL1] = PHY_RW, + [PHY_LED_03_POL_CTRL] = PHY_RW, + [PHY_LED_TIMER_CTRL] = PHY_RW, + [PHY_LED_45_CTRL] = PHY_RW + }, + [5] = { + [PHY_1000T_SKEW] = PHY_R, + [PHY_1000T_SWAP] = PHY_R + }, + [6] = { + [PHY_CRC_COUNTERS] = PHY_R + } +}; + +static bool +e1000e_phy_reg_check_cap(E1000ECore *core, uint32_t addr, + char cap, uint8_t *page) +{ + *page = + (e1000e_phy_regcap[0][addr] & PHY_ANYPAGE) ? 0 + : core->phy[0][PHY_PAGE]; + + if (*page >= E1000E_PHY_PAGES) { + return false; + } + + return e1000e_phy_regcap[*page][addr] & cap; +} + +static void +e1000e_phy_reg_write(E1000ECore *core, uint8_t page, + uint32_t addr, uint16_t data) +{ + assert(page < E1000E_PHY_PAGES); + assert(addr < E1000E_PHY_PAGE_SIZE); + + if (e1000e_phyreg_writeops[page][addr]) { + e1000e_phyreg_writeops[page][addr](core, addr, data); + } else { + core->phy[page][addr] = data; + } +} + +static void +e1000e_set_mdic(E1000ECore *core, int index, uint32_t val) +{ + uint32_t data = val & E1000_MDIC_DATA_MASK; + uint32_t addr = ((val & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT); + uint8_t page; + + if ((val & E1000_MDIC_PHY_MASK) >> E1000_MDIC_PHY_SHIFT != 1) { /* phy # */ + val = core->mac[MDIC] | E1000_MDIC_ERROR; + } else if (val & E1000_MDIC_OP_READ) { + if (!e1000e_phy_reg_check_cap(core, addr, PHY_R, &page)) { + trace_e1000e_core_mdic_read_unhandled(page, addr); + val |= E1000_MDIC_ERROR; + } else { + val = (val ^ data) | core->phy[page][addr]; + trace_e1000e_core_mdic_read(page, addr, val); + } + } else if (val & E1000_MDIC_OP_WRITE) { + if (!e1000e_phy_reg_check_cap(core, addr, PHY_W, &page)) { + trace_e1000e_core_mdic_write_unhandled(page, addr); + val |= E1000_MDIC_ERROR; + } else { + trace_e1000e_core_mdic_write(page, addr, data); + e1000e_phy_reg_write(core, page, addr, data); + } + } + core->mac[MDIC] = val | E1000_MDIC_READY; + + if (val & E1000_MDIC_INT_EN) { + e1000e_set_interrupt_cause(core, E1000_ICR_MDAC); + } +} + +static void +e1000e_set_rdt(E1000ECore *core, int index, uint32_t val) +{ + core->mac[index] = val & 0xffff; + trace_e1000e_rx_set_rdt(e1000e_mq_queue_idx(RDT0, index), val); + e1000e_start_recv(core); +} + +static void +e1000e_set_status(E1000ECore *core, int index, uint32_t val) +{ + if ((val & E1000_STATUS_PHYRA) == 0) { + core->mac[index] &= ~E1000_STATUS_PHYRA; + } +} + +static void +e1000e_set_ctrlext(E1000ECore *core, int index, uint32_t val) +{ + trace_e1000e_link_set_ext_params(!!(val & E1000_CTRL_EXT_ASDCHK), + !!(val & E1000_CTRL_EXT_SPD_BYPS)); + + /* Zero self-clearing bits */ + val &= ~(E1000_CTRL_EXT_ASDCHK | E1000_CTRL_EXT_EE_RST); + core->mac[CTRL_EXT] = val; +} + +static void +e1000e_set_pbaclr(E1000ECore *core, int index, uint32_t val) +{ + int i; + + core->mac[PBACLR] = val & E1000_PBACLR_VALID_MASK; + + if (msix_enabled(core->owner)) { + return; + } + + for (i = 0; i < E1000E_MSIX_VEC_NUM; i++) { + if (core->mac[PBACLR] & BIT(i)) { + msix_clr_pending(core->owner, i); + } + } +} + +static void +e1000e_set_fcrth(E1000ECore *core, int index, uint32_t val) +{ + core->mac[FCRTH] = val & 0xFFF8; +} + +static void +e1000e_set_fcrtl(E1000ECore *core, int index, uint32_t val) +{ + core->mac[FCRTL] = val & 0x8000FFF8; +} + +static inline void +e1000e_set_16bit(E1000ECore *core, int index, uint32_t val) +{ + core->mac[index] = val & 0xffff; +} + +static void +e1000e_set_12bit(E1000ECore *core, int index, uint32_t val) +{ + core->mac[index] = val & 0xfff; +} + +static void +e1000e_set_vet(E1000ECore *core, int index, uint32_t val) +{ + core->mac[VET] = val & 0xffff; + core->vet = le16_to_cpu(core->mac[VET]); + trace_e1000e_vlan_vet(core->vet); +} + +static void +e1000e_set_dlen(E1000ECore *core, int index, uint32_t val) +{ + core->mac[index] = val & E1000_XDLEN_MASK; +} + +static void +e1000e_set_dbal(E1000ECore *core, int index, uint32_t val) +{ + core->mac[index] = val & E1000_XDBAL_MASK; +} + +static void +e1000e_set_tctl(E1000ECore *core, int index, uint32_t val) +{ + E1000E_TxRing txr; + core->mac[index] = val; + + if (core->mac[TARC0] & E1000_TARC_ENABLE) { + e1000e_tx_ring_init(core, &txr, 0); + e1000e_start_xmit(core, &txr); + } + + if (core->mac[TARC1] & E1000_TARC_ENABLE) { + e1000e_tx_ring_init(core, &txr, 1); + e1000e_start_xmit(core, &txr); + } +} + +static void +e1000e_set_tdt(E1000ECore *core, int index, uint32_t val) +{ + E1000E_TxRing txr; + int qidx = e1000e_mq_queue_idx(TDT, index); + uint32_t tarc_reg = (qidx == 0) ? TARC0 : TARC1; + + core->mac[index] = val & 0xffff; + + if (core->mac[tarc_reg] & E1000_TARC_ENABLE) { + e1000e_tx_ring_init(core, &txr, qidx); + e1000e_start_xmit(core, &txr); + } +} + +static void +e1000e_set_ics(E1000ECore *core, int index, uint32_t val) +{ + trace_e1000e_irq_write_ics(val); + e1000e_set_interrupt_cause(core, val); +} + +static void +e1000e_set_icr(E1000ECore *core, int index, uint32_t val) +{ + if ((core->mac[ICR] & E1000_ICR_ASSERTED) && + (core->mac[CTRL_EXT] & E1000_CTRL_EXT_IAME)) { + trace_e1000e_irq_icr_process_iame(); + e1000e_clear_ims_bits(core, core->mac[IAM]); + } + + trace_e1000e_irq_icr_write(val, core->mac[ICR], core->mac[ICR] & ~val); + core->mac[ICR] &= ~val; + e1000e_update_interrupt_state(core); +} + +static void +e1000e_set_imc(E1000ECore *core, int index, uint32_t val) +{ + trace_e1000e_irq_ims_clear_set_imc(val); + e1000e_clear_ims_bits(core, val); + e1000e_update_interrupt_state(core); +} + +static void +e1000e_set_ims(E1000ECore *core, int index, uint32_t val) +{ + static const uint32_t ims_ext_mask = + E1000_IMS_RXQ0 | E1000_IMS_RXQ1 | + E1000_IMS_TXQ0 | E1000_IMS_TXQ1 | + E1000_IMS_OTHER; + + static const uint32_t ims_valid_mask = + E1000_IMS_TXDW | E1000_IMS_TXQE | E1000_IMS_LSC | + E1000_IMS_RXDMT0 | E1000_IMS_RXO | E1000_IMS_RXT0 | + E1000_IMS_MDAC | E1000_IMS_TXD_LOW | E1000_IMS_SRPD | + E1000_IMS_ACK | E1000_IMS_MNG | E1000_IMS_RXQ0 | + E1000_IMS_RXQ1 | E1000_IMS_TXQ0 | E1000_IMS_TXQ1 | + E1000_IMS_OTHER; + + uint32_t valid_val = val & ims_valid_mask; + + trace_e1000e_irq_set_ims(val, core->mac[IMS], core->mac[IMS] | valid_val); + core->mac[IMS] |= valid_val; + + if ((valid_val & ims_ext_mask) && + (core->mac[CTRL_EXT] & E1000_CTRL_EXT_PBA_CLR) && + msix_enabled(core->owner)) { + e1000e_msix_clear(core, valid_val); + } + + if ((valid_val == ims_valid_mask) && + (core->mac[CTRL_EXT] & E1000_CTRL_EXT_INT_TIMERS_CLEAR_ENA)) { + trace_e1000e_irq_fire_all_timers(val); + e1000e_intrmgr_fire_all_timers(core); + } + + e1000e_update_interrupt_state(core); +} + +static void +e1000e_set_rdtr(E1000ECore *core, int index, uint32_t val) +{ + e1000e_set_16bit(core, index, val); + + if ((val & E1000_RDTR_FPD) && (core->rdtr.running)) { + trace_e1000e_irq_rdtr_fpd_running(); + e1000e_intrmgr_fire_delayed_interrupts(core); + } else { + trace_e1000e_irq_rdtr_fpd_not_running(); + } +} + +static void +e1000e_set_tidv(E1000ECore *core, int index, uint32_t val) +{ + e1000e_set_16bit(core, index, val); + + if ((val & E1000_TIDV_FPD) && (core->tidv.running)) { + trace_e1000e_irq_tidv_fpd_running(); + e1000e_intrmgr_fire_delayed_interrupts(core); + } else { + trace_e1000e_irq_tidv_fpd_not_running(); + } +} + +static uint32_t +e1000e_mac_readreg(E1000ECore *core, int index) +{ + return core->mac[index]; +} + +static uint32_t +e1000e_mac_ics_read(E1000ECore *core, int index) +{ + trace_e1000e_irq_read_ics(core->mac[ICS]); + return core->mac[ICS]; +} + +static uint32_t +e1000e_mac_ims_read(E1000ECore *core, int index) +{ + trace_e1000e_irq_read_ims(core->mac[IMS]); + return core->mac[IMS]; +} + +#define E1000E_LOW_BITS_READ_FUNC(num) \ + static uint32_t \ + e1000e_mac_low##num##_read(E1000ECore *core, int index) \ + { \ + return core->mac[index] & (BIT(num) - 1); \ + } \ + +#define E1000E_LOW_BITS_READ(num) \ + e1000e_mac_low##num##_read + +E1000E_LOW_BITS_READ_FUNC(4); +E1000E_LOW_BITS_READ_FUNC(6); +E1000E_LOW_BITS_READ_FUNC(11); +E1000E_LOW_BITS_READ_FUNC(13); +E1000E_LOW_BITS_READ_FUNC(16); + +static uint32_t +e1000e_mac_swsm_read(E1000ECore *core, int index) +{ + uint32_t val = core->mac[SWSM]; + core->mac[SWSM] = val | 1; + return val; +} + +static uint32_t +e1000e_mac_itr_read(E1000ECore *core, int index) +{ + return core->itr_guest_value; +} + +static uint32_t +e1000e_mac_eitr_read(E1000ECore *core, int index) +{ + return core->eitr_guest_value[index - EITR]; +} + +static uint32_t +e1000e_mac_icr_read(E1000ECore *core, int index) +{ + uint32_t ret = core->mac[ICR]; + trace_e1000e_irq_icr_read_entry(ret); + + if (core->mac[IMS] == 0) { + trace_e1000e_irq_icr_clear_zero_ims(); + core->mac[ICR] = 0; + } + + if ((core->mac[ICR] & E1000_ICR_ASSERTED) && + (core->mac[CTRL_EXT] & E1000_CTRL_EXT_IAME)) { + trace_e1000e_irq_icr_clear_iame(); + core->mac[ICR] = 0; + trace_e1000e_irq_icr_process_iame(); + e1000e_clear_ims_bits(core, core->mac[IAM]); + } + + trace_e1000e_irq_icr_read_exit(core->mac[ICR]); + e1000e_update_interrupt_state(core); + return ret; +} + +static uint32_t +e1000e_mac_read_clr4(E1000ECore *core, int index) +{ + uint32_t ret = core->mac[index]; + + core->mac[index] = 0; + return ret; +} + +static uint32_t +e1000e_mac_read_clr8(E1000ECore *core, int index) +{ + uint32_t ret = core->mac[index]; + + core->mac[index] = 0; + core->mac[index - 1] = 0; + return ret; +} + +static uint32_t +e1000e_get_ctrl(E1000ECore *core, int index) +{ + uint32_t val = core->mac[CTRL]; + + trace_e1000e_link_read_params( + !!(val & E1000_CTRL_ASDE), + (val & E1000_CTRL_SPD_SEL) >> E1000_CTRL_SPD_SHIFT, + !!(val & E1000_CTRL_FRCSPD), + !!(val & E1000_CTRL_FRCDPX), + !!(val & E1000_CTRL_RFCE), + !!(val & E1000_CTRL_TFCE)); + + return val; +} + +static uint32_t +e1000e_get_status(E1000ECore *core, int index) +{ + uint32_t res = core->mac[STATUS]; + + if (!(core->mac[CTRL] & E1000_CTRL_GIO_MASTER_DISABLE)) { + res |= E1000_STATUS_GIO_MASTER_ENABLE; + } + + if (core->mac[CTRL] & E1000_CTRL_FRCDPX) { + res |= (core->mac[CTRL] & E1000_CTRL_FD) ? E1000_STATUS_FD : 0; + } else { + res |= E1000_STATUS_FD; + } + + if ((core->mac[CTRL] & E1000_CTRL_FRCSPD) || + (core->mac[CTRL_EXT] & E1000_CTRL_EXT_SPD_BYPS)) { + switch (core->mac[CTRL] & E1000_CTRL_SPD_SEL) { + case E1000_CTRL_SPD_10: + res |= E1000_STATUS_SPEED_10; + break; + case E1000_CTRL_SPD_100: + res |= E1000_STATUS_SPEED_100; + break; + case E1000_CTRL_SPD_1000: + default: + res |= E1000_STATUS_SPEED_1000; + break; + } + } else { + res |= E1000_STATUS_SPEED_1000; + } + + trace_e1000e_link_status( + !!(res & E1000_STATUS_LU), + !!(res & E1000_STATUS_FD), + (res & E1000_STATUS_SPEED_MASK) >> E1000_STATUS_SPEED_SHIFT, + (res & E1000_STATUS_ASDV) >> E1000_STATUS_ASDV_SHIFT); + + return res; +} + +static uint32_t +e1000e_get_tarc(E1000ECore *core, int index) +{ + return core->mac[index] & ((BIT(11) - 1) | + BIT(27) | + BIT(28) | + BIT(29) | + BIT(30)); +} + +static void +e1000e_mac_writereg(E1000ECore *core, int index, uint32_t val) +{ + core->mac[index] = val; +} + +static void +e1000e_mac_setmacaddr(E1000ECore *core, int index, uint32_t val) +{ + uint32_t macaddr[2]; + + core->mac[index] = val; + + macaddr[0] = cpu_to_le32(core->mac[RA]); + macaddr[1] = cpu_to_le32(core->mac[RA + 1]); + qemu_format_nic_info_str(qemu_get_queue(core->owner_nic), + (uint8_t *) macaddr); + + trace_e1000e_mac_set_sw(MAC_ARG(macaddr)); +} + +static void +e1000e_set_eecd(E1000ECore *core, int index, uint32_t val) +{ + static const uint32_t ro_bits = E1000_EECD_PRES | + E1000_EECD_AUTO_RD | + E1000_EECD_SIZE_EX_MASK; + + core->mac[EECD] = (core->mac[EECD] & ro_bits) | (val & ~ro_bits); +} + +static void +e1000e_set_eerd(E1000ECore *core, int index, uint32_t val) +{ + uint32_t addr = (val >> E1000_EERW_ADDR_SHIFT) & E1000_EERW_ADDR_MASK; + uint32_t flags = 0; + uint32_t data = 0; + + if ((addr < E1000E_EEPROM_SIZE) && (val & E1000_EERW_START)) { + data = core->eeprom[addr]; + flags = E1000_EERW_DONE; + } + + core->mac[EERD] = flags | + (addr << E1000_EERW_ADDR_SHIFT) | + (data << E1000_EERW_DATA_SHIFT); +} + +static void +e1000e_set_eewr(E1000ECore *core, int index, uint32_t val) +{ + uint32_t addr = (val >> E1000_EERW_ADDR_SHIFT) & E1000_EERW_ADDR_MASK; + uint32_t data = (val >> E1000_EERW_DATA_SHIFT) & E1000_EERW_DATA_MASK; + uint32_t flags = 0; + + if ((addr < E1000E_EEPROM_SIZE) && (val & E1000_EERW_START)) { + core->eeprom[addr] = data; + flags = E1000_EERW_DONE; + } + + core->mac[EERD] = flags | + (addr << E1000_EERW_ADDR_SHIFT) | + (data << E1000_EERW_DATA_SHIFT); +} + +static void +e1000e_set_rxdctl(E1000ECore *core, int index, uint32_t val) +{ + core->mac[RXDCTL] = core->mac[RXDCTL1] = val; +} + +static void +e1000e_set_itr(E1000ECore *core, int index, uint32_t val) +{ + uint32_t interval = val & 0xffff; + + trace_e1000e_irq_itr_set(val); + + core->itr_guest_value = interval; + core->mac[index] = MAX(interval, E1000E_MIN_XITR); +} + +static void +e1000e_set_eitr(E1000ECore *core, int index, uint32_t val) +{ + uint32_t interval = val & 0xffff; + uint32_t eitr_num = index - EITR; + + trace_e1000e_irq_eitr_set(eitr_num, val); + + core->eitr_guest_value[eitr_num] = interval; + core->mac[index] = MAX(interval, E1000E_MIN_XITR); +} + +static void +e1000e_set_psrctl(E1000ECore *core, int index, uint32_t val) +{ + if ((val & E1000_PSRCTL_BSIZE0_MASK) == 0) { + hw_error("e1000e: PSRCTL.BSIZE0 cannot be zero"); + } + + if ((val & E1000_PSRCTL_BSIZE1_MASK) == 0) { + hw_error("e1000e: PSRCTL.BSIZE1 cannot be zero"); + } + + core->mac[PSRCTL] = val; +} + +static void +e1000e_update_rx_offloads(E1000ECore *core) +{ + int cso_state = e1000e_rx_l4_cso_enabled(core); + + trace_e1000e_rx_set_cso(cso_state); + + if (core->has_vnet) { + qemu_set_offload(qemu_get_queue(core->owner_nic)->peer, + cso_state, 0, 0, 0, 0); + } +} + +static void +e1000e_set_rxcsum(E1000ECore *core, int index, uint32_t val) +{ + core->mac[RXCSUM] = val; + e1000e_update_rx_offloads(core); +} + +static void +e1000e_set_gcr(E1000ECore *core, int index, uint32_t val) +{ + uint32_t ro_bits = core->mac[GCR] & E1000_GCR_RO_BITS; + core->mac[GCR] = (val & ~E1000_GCR_RO_BITS) | ro_bits; +} + +#define e1000e_getreg(x) [x] = e1000e_mac_readreg +static uint32_t (*e1000e_macreg_readops[])(E1000ECore *, int) = { + e1000e_getreg(PBA), + e1000e_getreg(WUFC), + e1000e_getreg(MANC), + e1000e_getreg(TOTL), + e1000e_getreg(RDT0), + e1000e_getreg(RDBAH0), + e1000e_getreg(TDBAL1), + e1000e_getreg(RDLEN0), + e1000e_getreg(RDH1), + e1000e_getreg(LATECOL), + e1000e_getreg(SEC), + e1000e_getreg(XONTXC), + e1000e_getreg(WUS), + e1000e_getreg(GORCL), + e1000e_getreg(MGTPRC), + e1000e_getreg(EERD), + e1000e_getreg(EIAC), + e1000e_getreg(PSRCTL), + e1000e_getreg(MANC2H), + e1000e_getreg(RXCSUM), + e1000e_getreg(GSCL_3), + e1000e_getreg(GSCN_2), + e1000e_getreg(RSRPD), + e1000e_getreg(RDBAL1), + e1000e_getreg(FCAH), + e1000e_getreg(FCRTH), + e1000e_getreg(FLOP), + e1000e_getreg(FLASHT), + e1000e_getreg(RXSTMPH), + e1000e_getreg(TXSTMPL), + e1000e_getreg(TIMADJL), + e1000e_getreg(TXDCTL), + e1000e_getreg(RDH0), + e1000e_getreg(TDT1), + e1000e_getreg(TNCRS), + e1000e_getreg(RJC), + e1000e_getreg(IAM), + e1000e_getreg(GSCL_2), + e1000e_getreg(RDBAH1), + e1000e_getreg(FLSWDATA), + e1000e_getreg(RXSATRH), + e1000e_getreg(TIPG), + e1000e_getreg(FLMNGCTL), + e1000e_getreg(FLMNGCNT), + e1000e_getreg(TSYNCTXCTL), + e1000e_getreg(EXTCNF_SIZE), + e1000e_getreg(EXTCNF_CTRL), + e1000e_getreg(EEMNGDATA), + e1000e_getreg(CTRL_EXT), + e1000e_getreg(SYSTIMH), + e1000e_getreg(EEMNGCTL), + e1000e_getreg(FLMNGDATA), + e1000e_getreg(TSYNCRXCTL), + e1000e_getreg(TDH), + e1000e_getreg(LEDCTL), + e1000e_getreg(STATUS), + e1000e_getreg(TCTL), + e1000e_getreg(TDBAL), + e1000e_getreg(TDLEN), + e1000e_getreg(TDH1), + e1000e_getreg(RADV), + e1000e_getreg(ECOL), + e1000e_getreg(DC), + e1000e_getreg(RLEC), + e1000e_getreg(XOFFTXC), + e1000e_getreg(RFC), + e1000e_getreg(RNBC), + e1000e_getreg(MGTPTC), + e1000e_getreg(TIMINCA), + e1000e_getreg(RXCFGL), + e1000e_getreg(MFUTP01), + e1000e_getreg(FACTPS), + e1000e_getreg(GSCL_1), + e1000e_getreg(GSCN_0), + e1000e_getreg(GCR2), + e1000e_getreg(RDT1), + e1000e_getreg(PBACLR), + e1000e_getreg(FCTTV), + e1000e_getreg(EEWR), + e1000e_getreg(FLSWCTL), + e1000e_getreg(RXDCTL1), + e1000e_getreg(RXSATRL), + e1000e_getreg(SYSTIML), + e1000e_getreg(RXUDP), + e1000e_getreg(TORL), + e1000e_getreg(TDLEN1), + e1000e_getreg(MCC), + e1000e_getreg(WUC), + e1000e_getreg(EECD), + e1000e_getreg(MFUTP23), + e1000e_getreg(RAID), + e1000e_getreg(FCRTV), + e1000e_getreg(TXDCTL1), + e1000e_getreg(RCTL), + e1000e_getreg(TDT), + e1000e_getreg(MDIC), + e1000e_getreg(FCRUC), + e1000e_getreg(VET), + e1000e_getreg(RDBAL0), + e1000e_getreg(TDBAH1), + e1000e_getreg(RDTR), + e1000e_getreg(SCC), + e1000e_getreg(COLC), + e1000e_getreg(CEXTERR), + e1000e_getreg(XOFFRXC), + e1000e_getreg(IPAV), + e1000e_getreg(GOTCL), + e1000e_getreg(MGTPDC), + e1000e_getreg(GCR), + e1000e_getreg(IVAR), + e1000e_getreg(POEMB), + e1000e_getreg(MFVAL), + e1000e_getreg(FUNCTAG), + e1000e_getreg(GSCL_4), + e1000e_getreg(GSCN_3), + e1000e_getreg(MRQC), + e1000e_getreg(RDLEN1), + e1000e_getreg(FCT), + e1000e_getreg(FLA), + e1000e_getreg(FLOL), + e1000e_getreg(RXDCTL), + e1000e_getreg(RXSTMPL), + e1000e_getreg(TXSTMPH), + e1000e_getreg(TIMADJH), + e1000e_getreg(FCRTL), + e1000e_getreg(TDBAH), + e1000e_getreg(TADV), + e1000e_getreg(XONRXC), + e1000e_getreg(TSCTFC), + e1000e_getreg(RFCTL), + e1000e_getreg(GSCN_1), + e1000e_getreg(FCAL), + e1000e_getreg(FLSWCNT), + + [TOTH] = e1000e_mac_read_clr8, + [GOTCH] = e1000e_mac_read_clr8, + [PRC64] = e1000e_mac_read_clr4, + [PRC255] = e1000e_mac_read_clr4, + [PRC1023] = e1000e_mac_read_clr4, + [PTC64] = e1000e_mac_read_clr4, + [PTC255] = e1000e_mac_read_clr4, + [PTC1023] = e1000e_mac_read_clr4, + [GPRC] = e1000e_mac_read_clr4, + [TPT] = e1000e_mac_read_clr4, + [RUC] = e1000e_mac_read_clr4, + [BPRC] = e1000e_mac_read_clr4, + [MPTC] = e1000e_mac_read_clr4, + [IAC] = e1000e_mac_read_clr4, + [ICR] = e1000e_mac_icr_read, + [RDFH] = E1000E_LOW_BITS_READ(13), + [RDFHS] = E1000E_LOW_BITS_READ(13), + [RDFPC] = E1000E_LOW_BITS_READ(13), + [TDFH] = E1000E_LOW_BITS_READ(13), + [TDFHS] = E1000E_LOW_BITS_READ(13), + [STATUS] = e1000e_get_status, + [TARC0] = e1000e_get_tarc, + [PBS] = E1000E_LOW_BITS_READ(6), + [ICS] = e1000e_mac_ics_read, + [AIT] = E1000E_LOW_BITS_READ(16), + [TORH] = e1000e_mac_read_clr8, + [GORCH] = e1000e_mac_read_clr8, + [PRC127] = e1000e_mac_read_clr4, + [PRC511] = e1000e_mac_read_clr4, + [PRC1522] = e1000e_mac_read_clr4, + [PTC127] = e1000e_mac_read_clr4, + [PTC511] = e1000e_mac_read_clr4, + [PTC1522] = e1000e_mac_read_clr4, + [GPTC] = e1000e_mac_read_clr4, + [TPR] = e1000e_mac_read_clr4, + [ROC] = e1000e_mac_read_clr4, + [MPRC] = e1000e_mac_read_clr4, + [BPTC] = e1000e_mac_read_clr4, + [TSCTC] = e1000e_mac_read_clr4, + [ITR] = e1000e_mac_itr_read, + [RDFT] = E1000E_LOW_BITS_READ(13), + [RDFTS] = E1000E_LOW_BITS_READ(13), + [TDFPC] = E1000E_LOW_BITS_READ(13), + [TDFT] = E1000E_LOW_BITS_READ(13), + [TDFTS] = E1000E_LOW_BITS_READ(13), + [CTRL] = e1000e_get_ctrl, + [TARC1] = e1000e_get_tarc, + [SWSM] = e1000e_mac_swsm_read, + [IMS] = e1000e_mac_ims_read, + + [CRCERRS ... MPC] = e1000e_mac_readreg, + [IP6AT ... IP6AT + 3] = e1000e_mac_readreg, + [IP4AT ... IP4AT + 6] = e1000e_mac_readreg, + [RA ... RA + 31] = e1000e_mac_readreg, + [WUPM ... WUPM + 31] = e1000e_mac_readreg, + [MTA ... MTA + 127] = e1000e_mac_readreg, + [VFTA ... VFTA + 127] = e1000e_mac_readreg, + [FFMT ... FFMT + 254] = E1000E_LOW_BITS_READ(4), + [FFVT ... FFVT + 254] = e1000e_mac_readreg, + [MDEF ... MDEF + 7] = e1000e_mac_readreg, + [FFLT ... FFLT + 10] = E1000E_LOW_BITS_READ(11), + [FTFT ... FTFT + 254] = e1000e_mac_readreg, + [PBM ... PBM + 10239] = e1000e_mac_readreg, + [RETA ... RETA + 31] = e1000e_mac_readreg, + [RSSRK ... RSSRK + 31] = e1000e_mac_readreg, + [MAVTV0 ... MAVTV3] = e1000e_mac_readreg, + [EITR...EITR + E1000E_MSIX_VEC_NUM - 1] = e1000e_mac_eitr_read +}; +enum { E1000E_NREADOPS = ARRAY_SIZE(e1000e_macreg_readops) }; + +#define e1000e_putreg(x) [x] = e1000e_mac_writereg +static void (*e1000e_macreg_writeops[])(E1000ECore *, int, uint32_t) = { + e1000e_putreg(PBA), + e1000e_putreg(SWSM), + e1000e_putreg(WUFC), + e1000e_putreg(RDBAH1), + e1000e_putreg(TDBAH), + e1000e_putreg(TXDCTL), + e1000e_putreg(RDBAH0), + e1000e_putreg(LEDCTL), + e1000e_putreg(FCAL), + e1000e_putreg(FCRUC), + e1000e_putreg(AIT), + e1000e_putreg(TDFH), + e1000e_putreg(TDFT), + e1000e_putreg(TDFHS), + e1000e_putreg(TDFTS), + e1000e_putreg(TDFPC), + e1000e_putreg(WUC), + e1000e_putreg(WUS), + e1000e_putreg(RDFH), + e1000e_putreg(RDFT), + e1000e_putreg(RDFHS), + e1000e_putreg(RDFTS), + e1000e_putreg(RDFPC), + e1000e_putreg(IPAV), + e1000e_putreg(TDBAH1), + e1000e_putreg(TIMINCA), + e1000e_putreg(IAM), + e1000e_putreg(EIAC), + e1000e_putreg(IVAR), + e1000e_putreg(TARC0), + e1000e_putreg(TARC1), + e1000e_putreg(FLSWDATA), + e1000e_putreg(POEMB), + e1000e_putreg(PBS), + e1000e_putreg(MFUTP01), + e1000e_putreg(MFUTP23), + e1000e_putreg(MANC), + e1000e_putreg(MANC2H), + e1000e_putreg(MFVAL), + e1000e_putreg(EXTCNF_CTRL), + e1000e_putreg(FACTPS), + e1000e_putreg(FUNCTAG), + e1000e_putreg(GSCL_1), + e1000e_putreg(GSCL_2), + e1000e_putreg(GSCL_3), + e1000e_putreg(GSCL_4), + e1000e_putreg(GSCN_0), + e1000e_putreg(GSCN_1), + e1000e_putreg(GSCN_2), + e1000e_putreg(GSCN_3), + e1000e_putreg(GCR2), + e1000e_putreg(MRQC), + e1000e_putreg(FLOP), + e1000e_putreg(FLOL), + e1000e_putreg(FLSWCTL), + e1000e_putreg(FLSWCNT), + e1000e_putreg(FLA), + e1000e_putreg(RXDCTL1), + e1000e_putreg(TXDCTL1), + e1000e_putreg(TIPG), + e1000e_putreg(RXSTMPH), + e1000e_putreg(RXSTMPL), + e1000e_putreg(RXSATRL), + e1000e_putreg(RXSATRH), + e1000e_putreg(TXSTMPL), + e1000e_putreg(TXSTMPH), + e1000e_putreg(SYSTIML), + e1000e_putreg(SYSTIMH), + e1000e_putreg(TIMADJL), + e1000e_putreg(TIMADJH), + e1000e_putreg(RXUDP), + e1000e_putreg(RXCFGL), + e1000e_putreg(TSYNCRXCTL), + e1000e_putreg(TSYNCTXCTL), + e1000e_putreg(FLSWDATA), + e1000e_putreg(EXTCNF_SIZE), + e1000e_putreg(EEMNGCTL), + e1000e_putreg(RA), + + [TDH1] = e1000e_set_16bit, + [TDT1] = e1000e_set_tdt, + [TCTL] = e1000e_set_tctl, + [TDT] = e1000e_set_tdt, + [MDIC] = e1000e_set_mdic, + [ICS] = e1000e_set_ics, + [TDH] = e1000e_set_16bit, + [RDH0] = e1000e_set_16bit, + [RDT0] = e1000e_set_rdt, + [IMC] = e1000e_set_imc, + [IMS] = e1000e_set_ims, + [ICR] = e1000e_set_icr, + [EECD] = e1000e_set_eecd, + [RCTL] = e1000e_set_rx_control, + [CTRL] = e1000e_set_ctrl, + [RDTR] = e1000e_set_rdtr, + [RADV] = e1000e_set_16bit, + [TADV] = e1000e_set_16bit, + [ITR] = e1000e_set_itr, + [EERD] = e1000e_set_eerd, + [GCR] = e1000e_set_gcr, + [PSRCTL] = e1000e_set_psrctl, + [RXCSUM] = e1000e_set_rxcsum, + [RAID] = e1000e_set_16bit, + [RSRPD] = e1000e_set_12bit, + [TIDV] = e1000e_set_tidv, + [TDLEN1] = e1000e_set_dlen, + [TDLEN] = e1000e_set_dlen, + [RDLEN0] = e1000e_set_dlen, + [RDLEN1] = e1000e_set_dlen, + [TDBAL] = e1000e_set_dbal, + [TDBAL1] = e1000e_set_dbal, + [RDBAL0] = e1000e_set_dbal, + [RDBAL1] = e1000e_set_dbal, + [RDH1] = e1000e_set_16bit, + [RDT1] = e1000e_set_rdt, + [STATUS] = e1000e_set_status, + [PBACLR] = e1000e_set_pbaclr, + [CTRL_EXT] = e1000e_set_ctrlext, + [FCAH] = e1000e_set_16bit, + [FCT] = e1000e_set_16bit, + [FCTTV] = e1000e_set_16bit, + [FCRTV] = e1000e_set_16bit, + [FCRTH] = e1000e_set_fcrth, + [FCRTL] = e1000e_set_fcrtl, + [VET] = e1000e_set_vet, + [RXDCTL] = e1000e_set_rxdctl, + [FLASHT] = e1000e_set_16bit, + [EEWR] = e1000e_set_eewr, + [CTRL_DUP] = e1000e_set_ctrl, + [RFCTL] = e1000e_set_rfctl, + [RA + 1] = e1000e_mac_setmacaddr, + + [IP6AT ... IP6AT + 3] = e1000e_mac_writereg, + [IP4AT ... IP4AT + 6] = e1000e_mac_writereg, + [RA + 2 ... RA + 31] = e1000e_mac_writereg, + [WUPM ... WUPM + 31] = e1000e_mac_writereg, + [MTA ... MTA + 127] = e1000e_mac_writereg, + [VFTA ... VFTA + 127] = e1000e_mac_writereg, + [FFMT ... FFMT + 254] = e1000e_mac_writereg, + [FFVT ... FFVT + 254] = e1000e_mac_writereg, + [PBM ... PBM + 10239] = e1000e_mac_writereg, + [MDEF ... MDEF + 7] = e1000e_mac_writereg, + [FFLT ... FFLT + 10] = e1000e_mac_writereg, + [FTFT ... FTFT + 254] = e1000e_mac_writereg, + [RETA ... RETA + 31] = e1000e_mac_writereg, + [RSSRK ... RSSRK + 31] = e1000e_mac_writereg, + [MAVTV0 ... MAVTV3] = e1000e_mac_writereg, + [EITR...EITR + E1000E_MSIX_VEC_NUM - 1] = e1000e_set_eitr +}; +enum { E1000E_NWRITEOPS = ARRAY_SIZE(e1000e_macreg_writeops) }; + +enum { MAC_ACCESS_PARTIAL = 1 }; + +/* The array below combines alias offsets of the index values for the + * MAC registers that have aliases, with the indication of not fully + * implemented registers (lowest bit). This combination is possible + * because all of the offsets are even. */ +static const uint16_t mac_reg_access[E1000E_MAC_SIZE] = { + /* Alias index offsets */ + [FCRTL_A] = 0x07fe, [FCRTH_A] = 0x0802, + [RDH0_A] = 0x09bc, [RDT0_A] = 0x09bc, [RDTR_A] = 0x09c6, + [RDFH_A] = 0xe904, [RDFT_A] = 0xe904, + [TDH_A] = 0x0cf8, [TDT_A] = 0x0cf8, [TIDV_A] = 0x0cf8, + [TDFH_A] = 0xed00, [TDFT_A] = 0xed00, + [RA_A ... RA_A + 31] = 0x14f0, + [VFTA_A ... VFTA_A + 127] = 0x1400, + [RDBAL0_A ... RDLEN0_A] = 0x09bc, + [TDBAL_A ... TDLEN_A] = 0x0cf8, + /* Access options */ + [RDFH] = MAC_ACCESS_PARTIAL, [RDFT] = MAC_ACCESS_PARTIAL, + [RDFHS] = MAC_ACCESS_PARTIAL, [RDFTS] = MAC_ACCESS_PARTIAL, + [RDFPC] = MAC_ACCESS_PARTIAL, + [TDFH] = MAC_ACCESS_PARTIAL, [TDFT] = MAC_ACCESS_PARTIAL, + [TDFHS] = MAC_ACCESS_PARTIAL, [TDFTS] = MAC_ACCESS_PARTIAL, + [TDFPC] = MAC_ACCESS_PARTIAL, [EECD] = MAC_ACCESS_PARTIAL, + [PBM] = MAC_ACCESS_PARTIAL, [FLA] = MAC_ACCESS_PARTIAL, + [FCAL] = MAC_ACCESS_PARTIAL, [FCAH] = MAC_ACCESS_PARTIAL, + [FCT] = MAC_ACCESS_PARTIAL, [FCTTV] = MAC_ACCESS_PARTIAL, + [FCRTV] = MAC_ACCESS_PARTIAL, [FCRTL] = MAC_ACCESS_PARTIAL, + [FCRTH] = MAC_ACCESS_PARTIAL, [TXDCTL] = MAC_ACCESS_PARTIAL, + [TXDCTL1] = MAC_ACCESS_PARTIAL, + [MAVTV0 ... MAVTV3] = MAC_ACCESS_PARTIAL +}; + +void +e1000e_core_write(E1000ECore *core, hwaddr addr, uint64_t val, unsigned size) +{ + uint16_t index = e1000e_get_reg_index_with_offset(mac_reg_access, addr); + + if (index < E1000E_NWRITEOPS && e1000e_macreg_writeops[index]) { + if (mac_reg_access[index] & MAC_ACCESS_PARTIAL) { + trace_e1000e_wrn_regs_write_trivial(index << 2); + } + trace_e1000e_core_write(index << 2, size, val); + e1000e_macreg_writeops[index](core, index, val); + } else if (index < E1000E_NREADOPS && e1000e_macreg_readops[index]) { + trace_e1000e_wrn_regs_write_ro(index << 2, size, val); + } else { + trace_e1000e_wrn_regs_write_unknown(index << 2, size, val); + } +} + +uint64_t +e1000e_core_read(E1000ECore *core, hwaddr addr, unsigned size) +{ + uint64_t val; + uint16_t index = e1000e_get_reg_index_with_offset(mac_reg_access, addr); + + if (index < E1000E_NREADOPS && e1000e_macreg_readops[index]) { + if (mac_reg_access[index] & MAC_ACCESS_PARTIAL) { + trace_e1000e_wrn_regs_read_trivial(index << 2); + } + val = e1000e_macreg_readops[index](core, index); + trace_e1000e_core_read(index << 2, size, val); + return val; + } else { + trace_e1000e_wrn_regs_read_unknown(index << 2, size); + } + return 0; +} + +static inline void +e1000e_autoneg_pause(E1000ECore *core) +{ + timer_del(core->autoneg_timer); +} + +static void +e1000e_autoneg_resume(E1000ECore *core) +{ + if (e1000e_have_autoneg(core) && + !(core->phy[0][PHY_STATUS] & MII_SR_AUTONEG_COMPLETE)) { + qemu_get_queue(core->owner_nic)->link_down = false; + timer_mod(core->autoneg_timer, + qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500); + } +} + +static void +e1000e_vm_state_change(void *opaque, int running, RunState state) +{ + E1000ECore *core = opaque; + + if (running) { + trace_e1000e_vm_state_running(); + e1000e_intrmgr_resume(core); + e1000e_autoneg_resume(core); + } else { + trace_e1000e_vm_state_stopped(); + e1000e_autoneg_pause(core); + e1000e_intrmgr_pause(core); + } +} + +void +e1000e_core_pci_realize(E1000ECore *core, + const uint16_t *eeprom_templ, + uint32_t eeprom_size, + const uint8_t *macaddr) +{ + int i; + + core->autoneg_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, + e1000e_autoneg_timer, core); + e1000e_intrmgr_pci_realize(core); + + core->vmstate = + qemu_add_vm_change_state_handler(e1000e_vm_state_change, core); + + for (i = 0; i < E1000E_NUM_QUEUES; i++) { + net_tx_pkt_init(&core->tx[i].tx_pkt, core->owner, + E1000E_MAX_TX_FRAGS, core->has_vnet); + } + + net_rx_pkt_init(&core->rx_pkt, core->has_vnet); + + e1000x_core_prepare_eeprom(core->eeprom, + eeprom_templ, + eeprom_size, + PCI_DEVICE_GET_CLASS(core->owner)->device_id, + macaddr); + e1000e_update_rx_offloads(core); +} + +void +e1000e_core_pci_uninit(E1000ECore *core) +{ + int i; + + timer_del(core->autoneg_timer); + timer_free(core->autoneg_timer); + + e1000e_intrmgr_pci_unint(core); + + qemu_del_vm_change_state_handler(core->vmstate); + + for (i = 0; i < E1000E_NUM_QUEUES; i++) { + net_tx_pkt_reset(core->tx[i].tx_pkt); + net_tx_pkt_uninit(core->tx[i].tx_pkt); + } + + net_rx_pkt_uninit(core->rx_pkt); +} + +static const uint16_t +e1000e_phy_reg_init[E1000E_PHY_PAGES][E1000E_PHY_PAGE_SIZE] = { + [0] = { + [PHY_CTRL] = MII_CR_SPEED_SELECT_MSB | + MII_CR_FULL_DUPLEX | + MII_CR_AUTO_NEG_EN, + + [PHY_STATUS] = MII_SR_EXTENDED_CAPS | + MII_SR_LINK_STATUS | + MII_SR_AUTONEG_CAPS | + MII_SR_PREAMBLE_SUPPRESS | + MII_SR_EXTENDED_STATUS | + MII_SR_10T_HD_CAPS | + MII_SR_10T_FD_CAPS | + MII_SR_100X_HD_CAPS | + MII_SR_100X_FD_CAPS, + + [PHY_ID1] = 0x141, + [PHY_ID2] = E1000_PHY_ID2_82574x, + [PHY_AUTONEG_ADV] = 0xde1, + [PHY_LP_ABILITY] = 0x7e0, + [PHY_AUTONEG_EXP] = BIT(2), + [PHY_NEXT_PAGE_TX] = BIT(0) | BIT(13), + [PHY_1000T_CTRL] = BIT(8) | BIT(9) | BIT(10) | BIT(11), + [PHY_1000T_STATUS] = 0x3c00, + [PHY_EXT_STATUS] = BIT(12) | BIT(13), + + [PHY_COPPER_CTRL1] = BIT(5) | BIT(6) | BIT(8) | BIT(9) | + BIT(12) | BIT(13), + [PHY_COPPER_STAT1] = BIT(3) | BIT(10) | BIT(11) | BIT(13) | BIT(15) + }, + [2] = { + [PHY_MAC_CTRL1] = BIT(3) | BIT(7), + [PHY_MAC_CTRL2] = BIT(1) | BIT(2) | BIT(6) | BIT(12) + }, + [3] = { + [PHY_LED_TIMER_CTRL] = BIT(0) | BIT(2) | BIT(14) + } +}; + +static const uint32_t e1000e_mac_reg_init[] = { + [PBA] = 0x00140014, + [LEDCTL] = BIT(1) | BIT(8) | BIT(9) | BIT(15) | BIT(17) | BIT(18), + [EXTCNF_CTRL] = BIT(3), + [EEMNGCTL] = BIT(31), + [FLASHT] = 0x2, + [FLSWCTL] = BIT(30) | BIT(31), + [FLOL] = BIT(0), + [RXDCTL] = BIT(16), + [RXDCTL1] = BIT(16), + [TIPG] = 0x8 | (0x8 << 10) | (0x6 << 20), + [RXCFGL] = 0x88F7, + [RXUDP] = 0x319, + [CTRL] = E1000_CTRL_FD | E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN0 | + E1000_CTRL_SPD_1000 | E1000_CTRL_SLU | + E1000_CTRL_ADVD3WUC, + [STATUS] = E1000_STATUS_ASDV_1000 | E1000_STATUS_LU, + [PSRCTL] = (2 << E1000_PSRCTL_BSIZE0_SHIFT) | + (4 << E1000_PSRCTL_BSIZE1_SHIFT) | + (4 << E1000_PSRCTL_BSIZE2_SHIFT), + [TARC0] = 0x3 | E1000_TARC_ENABLE, + [TARC1] = 0x3 | E1000_TARC_ENABLE, + [EECD] = E1000_EECD_AUTO_RD | E1000_EECD_PRES, + [EERD] = E1000_EERW_DONE, + [EEWR] = E1000_EERW_DONE, + [GCR] = E1000_L0S_ADJUST | + E1000_L1_ENTRY_LATENCY_MSB | + E1000_L1_ENTRY_LATENCY_LSB, + [TDFH] = 0x600, + [TDFT] = 0x600, + [TDFHS] = 0x600, + [TDFTS] = 0x600, + [POEMB] = 0x30D, + [PBS] = 0x028, + [MANC] = E1000_MANC_DIS_IP_CHK_ARP, + [FACTPS] = E1000_FACTPS_LAN0_ON | 0x20000000, + [SWSM] = 1, + [RXCSUM] = E1000_RXCSUM_IPOFLD | E1000_RXCSUM_TUOFLD, + [ITR] = E1000E_MIN_XITR, + [EITR...EITR + E1000E_MSIX_VEC_NUM - 1] = E1000E_MIN_XITR, +}; + +void +e1000e_core_reset(E1000ECore *core) +{ + int i; + + timer_del(core->autoneg_timer); + + e1000e_intrmgr_reset(core); + + memset(core->phy, 0, sizeof core->phy); + memmove(core->phy, e1000e_phy_reg_init, sizeof e1000e_phy_reg_init); + memset(core->mac, 0, sizeof core->mac); + memmove(core->mac, e1000e_mac_reg_init, sizeof e1000e_mac_reg_init); + + core->rxbuf_min_shift = 1 + E1000_RING_DESC_LEN_SHIFT; + + if (qemu_get_queue(core->owner_nic)->link_down) { + e1000e_link_down(core); + } + + e1000x_reset_mac_addr(core->owner_nic, core->mac, core->permanent_mac); + + for (i = 0; i < ARRAY_SIZE(core->tx); i++) { + net_tx_pkt_reset(core->tx[i].tx_pkt); + memset(&core->tx[i].props, 0, sizeof(core->tx[i].props)); + core->tx[i].skip_cp = false; + } +} + +void e1000e_core_pre_save(E1000ECore *core) +{ + int i; + NetClientState *nc = qemu_get_queue(core->owner_nic); + + /* + * If link is down and auto-negotiation is supported and ongoing, + * complete auto-negotiation immediately. This allows us to look + * at MII_SR_AUTONEG_COMPLETE to infer link status on load. + */ + if (nc->link_down && e1000e_have_autoneg(core)) { + core->phy[0][PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE; + e1000e_update_flowctl_status(core); + } + + for (i = 0; i < ARRAY_SIZE(core->tx); i++) { + if (net_tx_pkt_has_fragments(core->tx[i].tx_pkt)) { + core->tx[i].skip_cp = true; + } + } +} + +int +e1000e_core_post_load(E1000ECore *core) +{ + NetClientState *nc = qemu_get_queue(core->owner_nic); + + /* nc.link_down can't be migrated, so infer link_down according + * to link status bit in core.mac[STATUS]. + */ + nc->link_down = (core->mac[STATUS] & E1000_STATUS_LU) == 0; + + return 0; +} diff --git a/hw/net/e1000e_core.h b/hw/net/e1000e_core.h new file mode 100644 index 0000000000..5f413a9e08 --- /dev/null +++ b/hw/net/e1000e_core.h @@ -0,0 +1,146 @@ +/* +* Core code for QEMU e1000e 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 <dmitry@daynix.com> +* Leonid Bloch <leonid@daynix.com> +* Yan Vugenfirer <yan@daynix.com> +* +* 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 <http://www.gnu.org/licenses/>. +*/ + +#define E1000E_PHY_PAGE_SIZE (0x20) +#define E1000E_PHY_PAGES (0x07) +#define E1000E_MAC_SIZE (0x8000) +#define E1000E_EEPROM_SIZE (64) +#define E1000E_MSIX_VEC_NUM (5) +#define E1000E_NUM_QUEUES (2) + +typedef struct E1000Core E1000ECore; + +enum { PHY_R = BIT(0), + PHY_W = BIT(1), + PHY_RW = PHY_R | PHY_W, + PHY_ANYPAGE = BIT(2) }; + +typedef struct E1000IntrDelayTimer_st { + QEMUTimer *timer; + bool running; + uint32_t delay_reg; + uint32_t delay_resolution_ns; + E1000ECore *core; +} E1000IntrDelayTimer; + +struct E1000Core { + uint32_t mac[E1000E_MAC_SIZE]; + uint16_t phy[E1000E_PHY_PAGES][E1000E_PHY_PAGE_SIZE]; + uint16_t eeprom[E1000E_EEPROM_SIZE]; + + uint32_t rxbuf_sizes[E1000_PSRCTL_BUFFS_PER_DESC]; + uint32_t rx_desc_buf_size; + uint32_t rxbuf_min_shift; + uint8_t rx_desc_len; + + QEMUTimer *autoneg_timer; + + struct e1000e_tx { + e1000x_txd_props props; + + bool skip_cp; + struct NetTxPkt *tx_pkt; + } tx[E1000E_NUM_QUEUES]; + + struct NetRxPkt *rx_pkt; + + bool has_vnet; + int max_queue_num; + + /* Interrupt moderation management */ + uint32_t delayed_causes; + + E1000IntrDelayTimer radv; + E1000IntrDelayTimer rdtr; + E1000IntrDelayTimer raid; + + E1000IntrDelayTimer tadv; + E1000IntrDelayTimer tidv; + + E1000IntrDelayTimer itr; + bool itr_intr_pending; + + E1000IntrDelayTimer eitr[E1000E_MSIX_VEC_NUM]; + bool eitr_intr_pending[E1000E_MSIX_VEC_NUM]; + + VMChangeStateEntry *vmstate; + + uint32_t itr_guest_value; + uint32_t eitr_guest_value[E1000E_MSIX_VEC_NUM]; + + uint16_t vet; + + uint8_t permanent_mac[ETH_ALEN]; + + NICState *owner_nic; + PCIDevice *owner; + void (*owner_start_recv)(PCIDevice *d); +}; + +void +e1000e_core_write(E1000ECore *core, hwaddr addr, uint64_t val, unsigned size); + +uint64_t +e1000e_core_read(E1000ECore *core, hwaddr addr, unsigned size); + +void +e1000e_core_pci_realize(E1000ECore *regs, + const uint16_t *eeprom_templ, + uint32_t eeprom_size, + const uint8_t *macaddr); + +void +e1000e_core_reset(E1000ECore *core); + +void +e1000e_core_pre_save(E1000ECore *core); + +int +e1000e_core_post_load(E1000ECore *core); + +void +e1000e_core_set_link_status(E1000ECore *core); + +void +e1000e_core_pci_uninit(E1000ECore *core); + +int +e1000e_can_receive(E1000ECore *core); + +ssize_t +e1000e_receive(E1000ECore *core, const uint8_t *buf, size_t size); + +ssize_t +e1000e_receive_iov(E1000ECore *core, const struct iovec *iov, int iovcnt); |