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/*
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* QEMU e1000 emulation
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*
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* Software developer's manual:
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* http://download.intel.com/design/network/manuals/8254x_GBe_SDM.pdf
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*
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* Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
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* Copyright (c) 2008 Qumranet
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* Based on work done by:
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* Copyright (c) 2007 Dan Aloni
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* Copyright (c) 2004 Antony T Curtis
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hw.h" |
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#include "pci.h" |
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#include "net.h" |
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#include "net/checksum.h" |
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#include "loader.h" |
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#include "sysemu.h" |
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#include "e1000_hw.h" |
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#define E1000_DEBUG
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#ifdef E1000_DEBUG
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enum {
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DEBUG_GENERAL, DEBUG_IO, DEBUG_MMIO, DEBUG_INTERRUPT, |
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DEBUG_RX, DEBUG_TX, DEBUG_MDIC, DEBUG_EEPROM, |
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DEBUG_UNKNOWN, DEBUG_TXSUM, DEBUG_TXERR, DEBUG_RXERR, |
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DEBUG_RXFILTER, DEBUG_NOTYET, |
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}; |
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#define DBGBIT(x) (1<<DEBUG_##x) |
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static int debugflags = DBGBIT(TXERR) | DBGBIT(GENERAL); |
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#define DBGOUT(what, fmt, ...) do { \ |
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if (debugflags & DBGBIT(what)) \
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fprintf(stderr, "e1000: " fmt, ## __VA_ARGS__); \ |
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} while (0) |
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#else
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#define DBGOUT(what, fmt, ...) do {} while (0) |
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#endif
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#define IOPORT_SIZE 0x40 |
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#define PNPMMIO_SIZE 0x20000 |
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#define MIN_BUF_SIZE 60 /* Min. octets in an ethernet frame sans FCS */ |
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/*
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* HW models:
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* E1000_DEV_ID_82540EM works with Windows and Linux
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* E1000_DEV_ID_82573L OK with windoze and Linux 2.6.22,
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* appears to perform better than 82540EM, but breaks with Linux 2.6.18
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* E1000_DEV_ID_82544GC_COPPER appears to work; not well tested
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* Others never tested
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*/
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enum { E1000_DEVID = E1000_DEV_ID_82540EM };
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/*
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* May need to specify additional MAC-to-PHY entries --
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* Intel's Windows driver refuses to initialize unless they match
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*/
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enum {
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PHY_ID2_INIT = E1000_DEVID == E1000_DEV_ID_82573L ? 0xcc2 :
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E1000_DEVID == E1000_DEV_ID_82544GC_COPPER ? 0xc30 :
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/* default to E1000_DEV_ID_82540EM */ 0xc20 |
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}; |
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typedef struct E1000State_st { |
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PCIDevice dev; |
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NICState *nic; |
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NICConf conf; |
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MemoryRegion mmio; |
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MemoryRegion io; |
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uint32_t mac_reg[0x8000];
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uint16_t phy_reg[0x20];
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uint16_t eeprom_data[64];
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uint32_t rxbuf_size; |
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uint32_t rxbuf_min_shift; |
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int check_rxov;
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struct e1000_tx {
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unsigned char header[256]; |
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unsigned char vlan_header[4]; |
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/* Fields vlan and data must not be reordered or separated. */
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unsigned char vlan[4]; |
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unsigned char data[0x10000]; |
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uint16_t size; |
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unsigned char sum_needed; |
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unsigned char vlan_needed; |
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uint8_t ipcss; |
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uint8_t ipcso; |
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uint16_t ipcse; |
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uint8_t tucss; |
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uint8_t tucso; |
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uint16_t tucse; |
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uint8_t hdr_len; |
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uint16_t mss; |
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uint32_t paylen; |
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uint16_t tso_frames; |
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char tse;
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int8_t ip; |
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int8_t tcp; |
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char cptse; // current packet tse bit |
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} tx; |
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struct {
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uint32_t val_in; // shifted in from guest driver
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uint16_t bitnum_in; |
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uint16_t bitnum_out; |
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uint16_t reading; |
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uint32_t old_eecd; |
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} eecd_state; |
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} E1000State; |
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#define defreg(x) x = (E1000_##x>>2) |
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enum {
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defreg(CTRL), defreg(EECD), defreg(EERD), defreg(GPRC), |
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defreg(GPTC), defreg(ICR), defreg(ICS), defreg(IMC), |
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defreg(IMS), defreg(LEDCTL), defreg(MANC), defreg(MDIC), |
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defreg(MPC), defreg(PBA), defreg(RCTL), defreg(RDBAH), |
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defreg(RDBAL), defreg(RDH), defreg(RDLEN), defreg(RDT), |
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defreg(STATUS), defreg(SWSM), defreg(TCTL), defreg(TDBAH), |
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defreg(TDBAL), defreg(TDH), defreg(TDLEN), defreg(TDT), |
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defreg(TORH), defreg(TORL), defreg(TOTH), defreg(TOTL), |
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defreg(TPR), defreg(TPT), defreg(TXDCTL), defreg(WUFC), |
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defreg(RA), defreg(MTA), defreg(CRCERRS),defreg(VFTA), |
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defreg(VET), |
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}; |
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enum { PHY_R = 1, PHY_W = 2, PHY_RW = PHY_R | PHY_W }; |
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static const char phy_regcap[0x20] = { |
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[PHY_STATUS] = PHY_R, [M88E1000_EXT_PHY_SPEC_CTRL] = PHY_RW, |
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[PHY_ID1] = PHY_R, [M88E1000_PHY_SPEC_CTRL] = PHY_RW, |
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[PHY_CTRL] = PHY_RW, [PHY_1000T_CTRL] = PHY_RW, |
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[PHY_LP_ABILITY] = PHY_R, [PHY_1000T_STATUS] = PHY_R, |
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[PHY_AUTONEG_ADV] = PHY_RW, [M88E1000_RX_ERR_CNTR] = PHY_R, |
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[PHY_ID2] = PHY_R, [M88E1000_PHY_SPEC_STATUS] = PHY_R |
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}; |
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static void |
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set_interrupt_cause(E1000State *s, int index, uint32_t val)
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{ |
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if (val)
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val |= E1000_ICR_INT_ASSERTED; |
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s->mac_reg[ICR] = val; |
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s->mac_reg[ICS] = val; |
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qemu_set_irq(s->dev.irq[0], (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0); |
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} |
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static void |
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set_ics(E1000State *s, int index, uint32_t val)
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{ |
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DBGOUT(INTERRUPT, "set_ics %x, ICR %x, IMR %x\n", val, s->mac_reg[ICR],
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s->mac_reg[IMS]); |
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set_interrupt_cause(s, 0, val | s->mac_reg[ICR]);
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} |
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static int |
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rxbufsize(uint32_t v) |
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{ |
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v &= E1000_RCTL_BSEX | E1000_RCTL_SZ_16384 | E1000_RCTL_SZ_8192 | |
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E1000_RCTL_SZ_4096 | E1000_RCTL_SZ_2048 | E1000_RCTL_SZ_1024 | |
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E1000_RCTL_SZ_512 | E1000_RCTL_SZ_256; |
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switch (v) {
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case E1000_RCTL_BSEX | E1000_RCTL_SZ_16384:
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return 16384; |
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case E1000_RCTL_BSEX | E1000_RCTL_SZ_8192:
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return 8192; |
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case E1000_RCTL_BSEX | E1000_RCTL_SZ_4096:
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return 4096; |
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case E1000_RCTL_SZ_1024:
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return 1024; |
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case E1000_RCTL_SZ_512:
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return 512; |
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case E1000_RCTL_SZ_256:
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return 256; |
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} |
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return 2048; |
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} |
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static void |
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set_ctrl(E1000State *s, int index, uint32_t val)
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{ |
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/* RST is self clearing */
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s->mac_reg[CTRL] = val & ~E1000_CTRL_RST; |
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} |
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static void |
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set_rx_control(E1000State *s, int index, uint32_t val)
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{ |
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s->mac_reg[RCTL] = val; |
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s->rxbuf_size = rxbufsize(val); |
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s->rxbuf_min_shift = ((val / E1000_RCTL_RDMTS_QUAT) & 3) + 1; |
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DBGOUT(RX, "RCTL: %d, mac_reg[RCTL] = 0x%x\n", s->mac_reg[RDT],
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s->mac_reg[RCTL]); |
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} |
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static void |
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set_mdic(E1000State *s, int index, uint32_t val)
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{ |
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uint32_t data = val & E1000_MDIC_DATA_MASK; |
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uint32_t addr = ((val & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT); |
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if ((val & E1000_MDIC_PHY_MASK) >> E1000_MDIC_PHY_SHIFT != 1) // phy # |
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val = s->mac_reg[MDIC] | E1000_MDIC_ERROR; |
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else if (val & E1000_MDIC_OP_READ) { |
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DBGOUT(MDIC, "MDIC read reg 0x%x\n", addr);
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if (!(phy_regcap[addr] & PHY_R)) {
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DBGOUT(MDIC, "MDIC read reg %x unhandled\n", addr);
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val |= E1000_MDIC_ERROR; |
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} else
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val = (val ^ data) | s->phy_reg[addr]; |
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} else if (val & E1000_MDIC_OP_WRITE) { |
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DBGOUT(MDIC, "MDIC write reg 0x%x, value 0x%x\n", addr, data);
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if (!(phy_regcap[addr] & PHY_W)) {
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DBGOUT(MDIC, "MDIC write reg %x unhandled\n", addr);
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val |= E1000_MDIC_ERROR; |
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} else
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s->phy_reg[addr] = data; |
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} |
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s->mac_reg[MDIC] = val | E1000_MDIC_READY; |
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set_ics(s, 0, E1000_ICR_MDAC);
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} |
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static uint32_t
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get_eecd(E1000State *s, int index)
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{ |
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uint32_t ret = E1000_EECD_PRES|E1000_EECD_GNT | s->eecd_state.old_eecd; |
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DBGOUT(EEPROM, "reading eeprom bit %d (reading %d)\n",
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s->eecd_state.bitnum_out, s->eecd_state.reading); |
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if (!s->eecd_state.reading ||
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((s->eeprom_data[(s->eecd_state.bitnum_out >> 4) & 0x3f] >> |
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((s->eecd_state.bitnum_out & 0xf) ^ 0xf))) & 1) |
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ret |= E1000_EECD_DO; |
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return ret;
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} |
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static void |
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set_eecd(E1000State *s, int index, uint32_t val)
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{ |
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uint32_t oldval = s->eecd_state.old_eecd; |
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s->eecd_state.old_eecd = val & (E1000_EECD_SK | E1000_EECD_CS | |
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E1000_EECD_DI|E1000_EECD_FWE_MASK|E1000_EECD_REQ); |
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if (!(E1000_EECD_CS & val)) // CS inactive; nothing to do |
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return;
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if (E1000_EECD_CS & (val ^ oldval)) { // CS rise edge; reset state |
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s->eecd_state.val_in = 0;
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s->eecd_state.bitnum_in = 0;
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s->eecd_state.bitnum_out = 0;
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s->eecd_state.reading = 0;
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} |
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if (!(E1000_EECD_SK & (val ^ oldval))) // no clock edge |
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return;
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if (!(E1000_EECD_SK & val)) { // falling edge |
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s->eecd_state.bitnum_out++; |
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return;
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} |
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s->eecd_state.val_in <<= 1;
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if (val & E1000_EECD_DI)
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s->eecd_state.val_in |= 1;
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if (++s->eecd_state.bitnum_in == 9 && !s->eecd_state.reading) { |
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s->eecd_state.bitnum_out = ((s->eecd_state.val_in & 0x3f)<<4)-1; |
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s->eecd_state.reading = (((s->eecd_state.val_in >> 6) & 7) == |
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EEPROM_READ_OPCODE_MICROWIRE); |
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} |
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DBGOUT(EEPROM, "eeprom bitnum in %d out %d, reading %d\n",
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s->eecd_state.bitnum_in, s->eecd_state.bitnum_out, |
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s->eecd_state.reading); |
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} |
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static uint32_t
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flash_eerd_read(E1000State *s, int x)
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{ |
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unsigned int index, r = s->mac_reg[EERD] & ~E1000_EEPROM_RW_REG_START; |
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if ((s->mac_reg[EERD] & E1000_EEPROM_RW_REG_START) == 0) |
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return (s->mac_reg[EERD]);
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if ((index = r >> E1000_EEPROM_RW_ADDR_SHIFT) > EEPROM_CHECKSUM_REG)
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return (E1000_EEPROM_RW_REG_DONE | r);
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return ((s->eeprom_data[index] << E1000_EEPROM_RW_REG_DATA) |
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E1000_EEPROM_RW_REG_DONE | r); |
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} |
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|
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static void |
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putsum(uint8_t *data, uint32_t n, uint32_t sloc, uint32_t css, uint32_t cse) |
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{ |
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uint32_t sum; |
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if (cse && cse < n)
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n = cse + 1;
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if (sloc < n-1) { |
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sum = net_checksum_add(n-css, data+css); |
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cpu_to_be16wu((uint16_t *)(data + sloc), |
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net_checksum_finish(sum)); |
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} |
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} |
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|
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static inline int |
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vlan_enabled(E1000State *s) |
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{ |
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return ((s->mac_reg[CTRL] & E1000_CTRL_VME) != 0); |
320 |
} |
321 |
|
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static inline int |
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vlan_rx_filter_enabled(E1000State *s) |
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{ |
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return ((s->mac_reg[RCTL] & E1000_RCTL_VFE) != 0); |
326 |
} |
327 |
|
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static inline int |
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is_vlan_packet(E1000State *s, const uint8_t *buf)
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{ |
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return (be16_to_cpup((uint16_t *)(buf + 12)) == |
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le16_to_cpup((uint16_t *)(s->mac_reg + VET))); |
333 |
} |
334 |
|
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static inline int |
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is_vlan_txd(uint32_t txd_lower) |
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{ |
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return ((txd_lower & E1000_TXD_CMD_VLE) != 0); |
339 |
} |
340 |
|
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/* FCS aka Ethernet CRC-32. We don't get it from backends and can't
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* fill it in, just pad descriptor length by 4 bytes unless guest
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* told us to strip it off the packet. */
|
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static inline int |
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fcs_len(E1000State *s) |
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{ |
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return (s->mac_reg[RCTL] & E1000_RCTL_SECRC) ? 0 : 4; |
348 |
} |
349 |
|
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static void |
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xmit_seg(E1000State *s) |
352 |
{ |
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uint16_t len, *sp; |
354 |
unsigned int frames = s->tx.tso_frames, css, sofar, n; |
355 |
struct e1000_tx *tp = &s->tx;
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356 |
|
357 |
if (tp->tse && tp->cptse) {
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css = tp->ipcss; |
359 |
DBGOUT(TXSUM, "frames %d size %d ipcss %d\n",
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frames, tp->size, css); |
361 |
if (tp->ip) { // IPv4 |
362 |
cpu_to_be16wu((uint16_t *)(tp->data+css+2),
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tp->size - css); |
364 |
cpu_to_be16wu((uint16_t *)(tp->data+css+4),
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be16_to_cpup((uint16_t *)(tp->data+css+4))+frames);
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} else // IPv6 |
367 |
cpu_to_be16wu((uint16_t *)(tp->data+css+4),
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tp->size - css); |
369 |
css = tp->tucss; |
370 |
len = tp->size - css; |
371 |
DBGOUT(TXSUM, "tcp %d tucss %d len %d\n", tp->tcp, css, len);
|
372 |
if (tp->tcp) {
|
373 |
sofar = frames * tp->mss; |
374 |
cpu_to_be32wu((uint32_t *)(tp->data+css+4), // seq |
375 |
be32_to_cpupu((uint32_t *)(tp->data+css+4))+sofar);
|
376 |
if (tp->paylen - sofar > tp->mss)
|
377 |
tp->data[css + 13] &= ~9; // PSH, FIN |
378 |
} else // UDP |
379 |
cpu_to_be16wu((uint16_t *)(tp->data+css+4), len);
|
380 |
if (tp->sum_needed & E1000_TXD_POPTS_TXSM) {
|
381 |
unsigned int phsum; |
382 |
// add pseudo-header length before checksum calculation
|
383 |
sp = (uint16_t *)(tp->data + tp->tucso); |
384 |
phsum = be16_to_cpup(sp) + len; |
385 |
phsum = (phsum >> 16) + (phsum & 0xffff); |
386 |
cpu_to_be16wu(sp, phsum); |
387 |
} |
388 |
tp->tso_frames++; |
389 |
} |
390 |
|
391 |
if (tp->sum_needed & E1000_TXD_POPTS_TXSM)
|
392 |
putsum(tp->data, tp->size, tp->tucso, tp->tucss, tp->tucse); |
393 |
if (tp->sum_needed & E1000_TXD_POPTS_IXSM)
|
394 |
putsum(tp->data, tp->size, tp->ipcso, tp->ipcss, tp->ipcse); |
395 |
if (tp->vlan_needed) {
|
396 |
memmove(tp->vlan, tp->data, 4);
|
397 |
memmove(tp->data, tp->data + 4, 8); |
398 |
memcpy(tp->data + 8, tp->vlan_header, 4); |
399 |
qemu_send_packet(&s->nic->nc, tp->vlan, tp->size + 4);
|
400 |
} else
|
401 |
qemu_send_packet(&s->nic->nc, tp->data, tp->size); |
402 |
s->mac_reg[TPT]++; |
403 |
s->mac_reg[GPTC]++; |
404 |
n = s->mac_reg[TOTL]; |
405 |
if ((s->mac_reg[TOTL] += s->tx.size) < n)
|
406 |
s->mac_reg[TOTH]++; |
407 |
} |
408 |
|
409 |
static void |
410 |
process_tx_desc(E1000State *s, struct e1000_tx_desc *dp)
|
411 |
{ |
412 |
uint32_t txd_lower = le32_to_cpu(dp->lower.data); |
413 |
uint32_t dtype = txd_lower & (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D); |
414 |
unsigned int split_size = txd_lower & 0xffff, bytes, sz, op; |
415 |
unsigned int msh = 0xfffff, hdr = 0; |
416 |
uint64_t addr; |
417 |
struct e1000_context_desc *xp = (struct e1000_context_desc *)dp; |
418 |
struct e1000_tx *tp = &s->tx;
|
419 |
|
420 |
if (dtype == E1000_TXD_CMD_DEXT) { // context descriptor |
421 |
op = le32_to_cpu(xp->cmd_and_length); |
422 |
tp->ipcss = xp->lower_setup.ip_fields.ipcss; |
423 |
tp->ipcso = xp->lower_setup.ip_fields.ipcso; |
424 |
tp->ipcse = le16_to_cpu(xp->lower_setup.ip_fields.ipcse); |
425 |
tp->tucss = xp->upper_setup.tcp_fields.tucss; |
426 |
tp->tucso = xp->upper_setup.tcp_fields.tucso; |
427 |
tp->tucse = le16_to_cpu(xp->upper_setup.tcp_fields.tucse); |
428 |
tp->paylen = op & 0xfffff;
|
429 |
tp->hdr_len = xp->tcp_seg_setup.fields.hdr_len; |
430 |
tp->mss = le16_to_cpu(xp->tcp_seg_setup.fields.mss); |
431 |
tp->ip = (op & E1000_TXD_CMD_IP) ? 1 : 0; |
432 |
tp->tcp = (op & E1000_TXD_CMD_TCP) ? 1 : 0; |
433 |
tp->tse = (op & E1000_TXD_CMD_TSE) ? 1 : 0; |
434 |
tp->tso_frames = 0;
|
435 |
if (tp->tucso == 0) { // this is probably wrong |
436 |
DBGOUT(TXSUM, "TCP/UDP: cso 0!\n");
|
437 |
tp->tucso = tp->tucss + (tp->tcp ? 16 : 6); |
438 |
} |
439 |
return;
|
440 |
} else if (dtype == (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D)) { |
441 |
// data descriptor
|
442 |
if (tp->size == 0) { |
443 |
tp->sum_needed = le32_to_cpu(dp->upper.data) >> 8;
|
444 |
} |
445 |
tp->cptse = ( txd_lower & E1000_TXD_CMD_TSE ) ? 1 : 0; |
446 |
} else {
|
447 |
// legacy descriptor
|
448 |
tp->cptse = 0;
|
449 |
} |
450 |
|
451 |
if (vlan_enabled(s) && is_vlan_txd(txd_lower) &&
|
452 |
(tp->cptse || txd_lower & E1000_TXD_CMD_EOP)) { |
453 |
tp->vlan_needed = 1;
|
454 |
cpu_to_be16wu((uint16_t *)(tp->vlan_header), |
455 |
le16_to_cpup((uint16_t *)(s->mac_reg + VET))); |
456 |
cpu_to_be16wu((uint16_t *)(tp->vlan_header + 2),
|
457 |
le16_to_cpu(dp->upper.fields.special)); |
458 |
} |
459 |
|
460 |
addr = le64_to_cpu(dp->buffer_addr); |
461 |
if (tp->tse && tp->cptse) {
|
462 |
hdr = tp->hdr_len; |
463 |
msh = hdr + tp->mss; |
464 |
do {
|
465 |
bytes = split_size; |
466 |
if (tp->size + bytes > msh)
|
467 |
bytes = msh - tp->size; |
468 |
cpu_physical_memory_read(addr, tp->data + tp->size, bytes); |
469 |
if ((sz = tp->size + bytes) >= hdr && tp->size < hdr)
|
470 |
memmove(tp->header, tp->data, hdr); |
471 |
tp->size = sz; |
472 |
addr += bytes; |
473 |
if (sz == msh) {
|
474 |
xmit_seg(s); |
475 |
memmove(tp->data, tp->header, hdr); |
476 |
tp->size = hdr; |
477 |
} |
478 |
} while (split_size -= bytes);
|
479 |
} else if (!tp->tse && tp->cptse) { |
480 |
// context descriptor TSE is not set, while data descriptor TSE is set
|
481 |
DBGOUT(TXERR, "TCP segmentaion Error\n");
|
482 |
} else {
|
483 |
cpu_physical_memory_read(addr, tp->data + tp->size, split_size); |
484 |
tp->size += split_size; |
485 |
} |
486 |
|
487 |
if (!(txd_lower & E1000_TXD_CMD_EOP))
|
488 |
return;
|
489 |
if (!(tp->tse && tp->cptse && tp->size < hdr))
|
490 |
xmit_seg(s); |
491 |
tp->tso_frames = 0;
|
492 |
tp->sum_needed = 0;
|
493 |
tp->vlan_needed = 0;
|
494 |
tp->size = 0;
|
495 |
tp->cptse = 0;
|
496 |
} |
497 |
|
498 |
static uint32_t
|
499 |
txdesc_writeback(target_phys_addr_t base, struct e1000_tx_desc *dp)
|
500 |
{ |
501 |
uint32_t txd_upper, txd_lower = le32_to_cpu(dp->lower.data); |
502 |
|
503 |
if (!(txd_lower & (E1000_TXD_CMD_RS|E1000_TXD_CMD_RPS)))
|
504 |
return 0; |
505 |
txd_upper = (le32_to_cpu(dp->upper.data) | E1000_TXD_STAT_DD) & |
506 |
~(E1000_TXD_STAT_EC | E1000_TXD_STAT_LC | E1000_TXD_STAT_TU); |
507 |
dp->upper.data = cpu_to_le32(txd_upper); |
508 |
cpu_physical_memory_write(base + ((char *)&dp->upper - (char *)dp), |
509 |
(void *)&dp->upper, sizeof(dp->upper)); |
510 |
return E1000_ICR_TXDW;
|
511 |
} |
512 |
|
513 |
static uint64_t tx_desc_base(E1000State *s)
|
514 |
{ |
515 |
uint64_t bah = s->mac_reg[TDBAH]; |
516 |
uint64_t bal = s->mac_reg[TDBAL] & ~0xf;
|
517 |
|
518 |
return (bah << 32) + bal; |
519 |
} |
520 |
|
521 |
static void |
522 |
start_xmit(E1000State *s) |
523 |
{ |
524 |
target_phys_addr_t base; |
525 |
struct e1000_tx_desc desc;
|
526 |
uint32_t tdh_start = s->mac_reg[TDH], cause = E1000_ICS_TXQE; |
527 |
|
528 |
if (!(s->mac_reg[TCTL] & E1000_TCTL_EN)) {
|
529 |
DBGOUT(TX, "tx disabled\n");
|
530 |
return;
|
531 |
} |
532 |
|
533 |
while (s->mac_reg[TDH] != s->mac_reg[TDT]) {
|
534 |
base = tx_desc_base(s) + |
535 |
sizeof(struct e1000_tx_desc) * s->mac_reg[TDH]; |
536 |
cpu_physical_memory_read(base, (void *)&desc, sizeof(desc)); |
537 |
|
538 |
DBGOUT(TX, "index %d: %p : %x %x\n", s->mac_reg[TDH],
|
539 |
(void *)(intptr_t)desc.buffer_addr, desc.lower.data,
|
540 |
desc.upper.data); |
541 |
|
542 |
process_tx_desc(s, &desc); |
543 |
cause |= txdesc_writeback(base, &desc); |
544 |
|
545 |
if (++s->mac_reg[TDH] * sizeof(desc) >= s->mac_reg[TDLEN]) |
546 |
s->mac_reg[TDH] = 0;
|
547 |
/*
|
548 |
* the following could happen only if guest sw assigns
|
549 |
* bogus values to TDT/TDLEN.
|
550 |
* there's nothing too intelligent we could do about this.
|
551 |
*/
|
552 |
if (s->mac_reg[TDH] == tdh_start) {
|
553 |
DBGOUT(TXERR, "TDH wraparound @%x, TDT %x, TDLEN %x\n",
|
554 |
tdh_start, s->mac_reg[TDT], s->mac_reg[TDLEN]); |
555 |
break;
|
556 |
} |
557 |
} |
558 |
set_ics(s, 0, cause);
|
559 |
} |
560 |
|
561 |
static int |
562 |
receive_filter(E1000State *s, const uint8_t *buf, int size) |
563 |
{ |
564 |
static const uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
565 |
static const int mta_shift[] = {4, 3, 2, 0}; |
566 |
uint32_t f, rctl = s->mac_reg[RCTL], ra[2], *rp;
|
567 |
|
568 |
if (is_vlan_packet(s, buf) && vlan_rx_filter_enabled(s)) {
|
569 |
uint16_t vid = be16_to_cpup((uint16_t *)(buf + 14));
|
570 |
uint32_t vfta = le32_to_cpup((uint32_t *)(s->mac_reg + VFTA) + |
571 |
((vid >> 5) & 0x7f)); |
572 |
if ((vfta & (1 << (vid & 0x1f))) == 0) |
573 |
return 0; |
574 |
} |
575 |
|
576 |
if (rctl & E1000_RCTL_UPE) // promiscuous |
577 |
return 1; |
578 |
|
579 |
if ((buf[0] & 1) && (rctl & E1000_RCTL_MPE)) // promiscuous mcast |
580 |
return 1; |
581 |
|
582 |
if ((rctl & E1000_RCTL_BAM) && !memcmp(buf, bcast, sizeof bcast)) |
583 |
return 1; |
584 |
|
585 |
for (rp = s->mac_reg + RA; rp < s->mac_reg + RA + 32; rp += 2) { |
586 |
if (!(rp[1] & E1000_RAH_AV)) |
587 |
continue;
|
588 |
ra[0] = cpu_to_le32(rp[0]); |
589 |
ra[1] = cpu_to_le32(rp[1]); |
590 |
if (!memcmp(buf, (uint8_t *)ra, 6)) { |
591 |
DBGOUT(RXFILTER, |
592 |
"unicast match[%d]: %02x:%02x:%02x:%02x:%02x:%02x\n",
|
593 |
(int)(rp - s->mac_reg - RA)/2, |
594 |
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); |
595 |
return 1; |
596 |
} |
597 |
} |
598 |
DBGOUT(RXFILTER, "unicast mismatch: %02x:%02x:%02x:%02x:%02x:%02x\n",
|
599 |
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); |
600 |
|
601 |
f = mta_shift[(rctl >> E1000_RCTL_MO_SHIFT) & 3];
|
602 |
f = (((buf[5] << 8) | buf[4]) >> f) & 0xfff; |
603 |
if (s->mac_reg[MTA + (f >> 5)] & (1 << (f & 0x1f))) |
604 |
return 1; |
605 |
DBGOUT(RXFILTER, |
606 |
"dropping, inexact filter mismatch: %02x:%02x:%02x:%02x:%02x:%02x MO %d MTA[%d] %x\n",
|
607 |
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], |
608 |
(rctl >> E1000_RCTL_MO_SHIFT) & 3, f >> 5, |
609 |
s->mac_reg[MTA + (f >> 5)]);
|
610 |
|
611 |
return 0; |
612 |
} |
613 |
|
614 |
static void |
615 |
e1000_set_link_status(VLANClientState *nc) |
616 |
{ |
617 |
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
618 |
uint32_t old_status = s->mac_reg[STATUS]; |
619 |
|
620 |
if (nc->link_down) {
|
621 |
s->mac_reg[STATUS] &= ~E1000_STATUS_LU; |
622 |
s->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS; |
623 |
} else {
|
624 |
s->mac_reg[STATUS] |= E1000_STATUS_LU; |
625 |
s->phy_reg[PHY_STATUS] |= MII_SR_LINK_STATUS; |
626 |
} |
627 |
|
628 |
if (s->mac_reg[STATUS] != old_status)
|
629 |
set_ics(s, 0, E1000_ICR_LSC);
|
630 |
} |
631 |
|
632 |
static bool e1000_has_rxbufs(E1000State *s, size_t total_size) |
633 |
{ |
634 |
int bufs;
|
635 |
/* Fast-path short packets */
|
636 |
if (total_size <= s->rxbuf_size) {
|
637 |
return s->mac_reg[RDH] != s->mac_reg[RDT] || !s->check_rxov;
|
638 |
} |
639 |
if (s->mac_reg[RDH] < s->mac_reg[RDT]) {
|
640 |
bufs = s->mac_reg[RDT] - s->mac_reg[RDH]; |
641 |
} else if (s->mac_reg[RDH] > s->mac_reg[RDT] || !s->check_rxov) { |
642 |
bufs = s->mac_reg[RDLEN] / sizeof(struct e1000_rx_desc) + |
643 |
s->mac_reg[RDT] - s->mac_reg[RDH]; |
644 |
} else {
|
645 |
return false; |
646 |
} |
647 |
return total_size <= bufs * s->rxbuf_size;
|
648 |
} |
649 |
|
650 |
static int |
651 |
e1000_can_receive(VLANClientState *nc) |
652 |
{ |
653 |
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
654 |
|
655 |
return (s->mac_reg[RCTL] & E1000_RCTL_EN) && e1000_has_rxbufs(s, 1); |
656 |
} |
657 |
|
658 |
static uint64_t rx_desc_base(E1000State *s)
|
659 |
{ |
660 |
uint64_t bah = s->mac_reg[RDBAH]; |
661 |
uint64_t bal = s->mac_reg[RDBAL] & ~0xf;
|
662 |
|
663 |
return (bah << 32) + bal; |
664 |
} |
665 |
|
666 |
static ssize_t
|
667 |
e1000_receive(VLANClientState *nc, const uint8_t *buf, size_t size)
|
668 |
{ |
669 |
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
670 |
struct e1000_rx_desc desc;
|
671 |
target_phys_addr_t base; |
672 |
unsigned int n, rdt; |
673 |
uint32_t rdh_start; |
674 |
uint16_t vlan_special = 0;
|
675 |
uint8_t vlan_status = 0, vlan_offset = 0; |
676 |
uint8_t min_buf[MIN_BUF_SIZE]; |
677 |
size_t desc_offset; |
678 |
size_t desc_size; |
679 |
size_t total_size; |
680 |
|
681 |
if (!(s->mac_reg[RCTL] & E1000_RCTL_EN))
|
682 |
return -1; |
683 |
|
684 |
/* Pad to minimum Ethernet frame length */
|
685 |
if (size < sizeof(min_buf)) { |
686 |
memcpy(min_buf, buf, size); |
687 |
memset(&min_buf[size], 0, sizeof(min_buf) - size); |
688 |
buf = min_buf; |
689 |
size = sizeof(min_buf);
|
690 |
} |
691 |
|
692 |
if (!receive_filter(s, buf, size))
|
693 |
return size;
|
694 |
|
695 |
if (vlan_enabled(s) && is_vlan_packet(s, buf)) {
|
696 |
vlan_special = cpu_to_le16(be16_to_cpup((uint16_t *)(buf + 14)));
|
697 |
memmove((uint8_t *)buf + 4, buf, 12); |
698 |
vlan_status = E1000_RXD_STAT_VP; |
699 |
vlan_offset = 4;
|
700 |
size -= 4;
|
701 |
} |
702 |
|
703 |
rdh_start = s->mac_reg[RDH]; |
704 |
desc_offset = 0;
|
705 |
total_size = size + fcs_len(s); |
706 |
if (!e1000_has_rxbufs(s, total_size)) {
|
707 |
set_ics(s, 0, E1000_ICS_RXO);
|
708 |
return -1; |
709 |
} |
710 |
do {
|
711 |
desc_size = total_size - desc_offset; |
712 |
if (desc_size > s->rxbuf_size) {
|
713 |
desc_size = s->rxbuf_size; |
714 |
} |
715 |
base = rx_desc_base(s) + sizeof(desc) * s->mac_reg[RDH];
|
716 |
cpu_physical_memory_read(base, (void *)&desc, sizeof(desc)); |
717 |
desc.special = vlan_special; |
718 |
desc.status |= (vlan_status | E1000_RXD_STAT_DD); |
719 |
if (desc.buffer_addr) {
|
720 |
if (desc_offset < size) {
|
721 |
size_t copy_size = size - desc_offset; |
722 |
if (copy_size > s->rxbuf_size) {
|
723 |
copy_size = s->rxbuf_size; |
724 |
} |
725 |
cpu_physical_memory_write(le64_to_cpu(desc.buffer_addr), |
726 |
(void *)(buf + desc_offset + vlan_offset),
|
727 |
copy_size); |
728 |
} |
729 |
desc_offset += desc_size; |
730 |
desc.length = cpu_to_le16(desc_size); |
731 |
if (desc_offset >= total_size) {
|
732 |
desc.status |= E1000_RXD_STAT_EOP | E1000_RXD_STAT_IXSM; |
733 |
} else {
|
734 |
/* Guest zeroing out status is not a hardware requirement.
|
735 |
Clear EOP in case guest didn't do it. */
|
736 |
desc.status &= ~E1000_RXD_STAT_EOP; |
737 |
} |
738 |
} else { // as per intel docs; skip descriptors with null buf addr |
739 |
DBGOUT(RX, "Null RX descriptor!!\n");
|
740 |
} |
741 |
cpu_physical_memory_write(base, (void *)&desc, sizeof(desc)); |
742 |
|
743 |
if (++s->mac_reg[RDH] * sizeof(desc) >= s->mac_reg[RDLEN]) |
744 |
s->mac_reg[RDH] = 0;
|
745 |
s->check_rxov = 1;
|
746 |
/* see comment in start_xmit; same here */
|
747 |
if (s->mac_reg[RDH] == rdh_start) {
|
748 |
DBGOUT(RXERR, "RDH wraparound @%x, RDT %x, RDLEN %x\n",
|
749 |
rdh_start, s->mac_reg[RDT], s->mac_reg[RDLEN]); |
750 |
set_ics(s, 0, E1000_ICS_RXO);
|
751 |
return -1; |
752 |
} |
753 |
} while (desc_offset < total_size);
|
754 |
|
755 |
s->mac_reg[GPRC]++; |
756 |
s->mac_reg[TPR]++; |
757 |
/* TOR - Total Octets Received:
|
758 |
* This register includes bytes received in a packet from the <Destination
|
759 |
* Address> field through the <CRC> field, inclusively.
|
760 |
*/
|
761 |
n = s->mac_reg[TORL] + size + /* Always include FCS length. */ 4; |
762 |
if (n < s->mac_reg[TORL])
|
763 |
s->mac_reg[TORH]++; |
764 |
s->mac_reg[TORL] = n; |
765 |
|
766 |
n = E1000_ICS_RXT0; |
767 |
if ((rdt = s->mac_reg[RDT]) < s->mac_reg[RDH])
|
768 |
rdt += s->mac_reg[RDLEN] / sizeof(desc);
|
769 |
if (((rdt - s->mac_reg[RDH]) * sizeof(desc)) <= s->mac_reg[RDLEN] >> |
770 |
s->rxbuf_min_shift) |
771 |
n |= E1000_ICS_RXDMT0; |
772 |
|
773 |
set_ics(s, 0, n);
|
774 |
|
775 |
return size;
|
776 |
} |
777 |
|
778 |
static uint32_t
|
779 |
mac_readreg(E1000State *s, int index)
|
780 |
{ |
781 |
return s->mac_reg[index];
|
782 |
} |
783 |
|
784 |
static uint32_t
|
785 |
mac_icr_read(E1000State *s, int index)
|
786 |
{ |
787 |
uint32_t ret = s->mac_reg[ICR]; |
788 |
|
789 |
DBGOUT(INTERRUPT, "ICR read: %x\n", ret);
|
790 |
set_interrupt_cause(s, 0, 0); |
791 |
return ret;
|
792 |
} |
793 |
|
794 |
static uint32_t
|
795 |
mac_read_clr4(E1000State *s, int index)
|
796 |
{ |
797 |
uint32_t ret = s->mac_reg[index]; |
798 |
|
799 |
s->mac_reg[index] = 0;
|
800 |
return ret;
|
801 |
} |
802 |
|
803 |
static uint32_t
|
804 |
mac_read_clr8(E1000State *s, int index)
|
805 |
{ |
806 |
uint32_t ret = s->mac_reg[index]; |
807 |
|
808 |
s->mac_reg[index] = 0;
|
809 |
s->mac_reg[index-1] = 0; |
810 |
return ret;
|
811 |
} |
812 |
|
813 |
static void |
814 |
mac_writereg(E1000State *s, int index, uint32_t val)
|
815 |
{ |
816 |
s->mac_reg[index] = val; |
817 |
} |
818 |
|
819 |
static void |
820 |
set_rdt(E1000State *s, int index, uint32_t val)
|
821 |
{ |
822 |
s->check_rxov = 0;
|
823 |
s->mac_reg[index] = val & 0xffff;
|
824 |
} |
825 |
|
826 |
static void |
827 |
set_16bit(E1000State *s, int index, uint32_t val)
|
828 |
{ |
829 |
s->mac_reg[index] = val & 0xffff;
|
830 |
} |
831 |
|
832 |
static void |
833 |
set_dlen(E1000State *s, int index, uint32_t val)
|
834 |
{ |
835 |
s->mac_reg[index] = val & 0xfff80;
|
836 |
} |
837 |
|
838 |
static void |
839 |
set_tctl(E1000State *s, int index, uint32_t val)
|
840 |
{ |
841 |
s->mac_reg[index] = val; |
842 |
s->mac_reg[TDT] &= 0xffff;
|
843 |
start_xmit(s); |
844 |
} |
845 |
|
846 |
static void |
847 |
set_icr(E1000State *s, int index, uint32_t val)
|
848 |
{ |
849 |
DBGOUT(INTERRUPT, "set_icr %x\n", val);
|
850 |
set_interrupt_cause(s, 0, s->mac_reg[ICR] & ~val);
|
851 |
} |
852 |
|
853 |
static void |
854 |
set_imc(E1000State *s, int index, uint32_t val)
|
855 |
{ |
856 |
s->mac_reg[IMS] &= ~val; |
857 |
set_ics(s, 0, 0); |
858 |
} |
859 |
|
860 |
static void |
861 |
set_ims(E1000State *s, int index, uint32_t val)
|
862 |
{ |
863 |
s->mac_reg[IMS] |= val; |
864 |
set_ics(s, 0, 0); |
865 |
} |
866 |
|
867 |
#define getreg(x) [x] = mac_readreg
|
868 |
static uint32_t (*macreg_readops[])(E1000State *, int) = { |
869 |
getreg(PBA), getreg(RCTL), getreg(TDH), getreg(TXDCTL), |
870 |
getreg(WUFC), getreg(TDT), getreg(CTRL), getreg(LEDCTL), |
871 |
getreg(MANC), getreg(MDIC), getreg(SWSM), getreg(STATUS), |
872 |
getreg(TORL), getreg(TOTL), getreg(IMS), getreg(TCTL), |
873 |
getreg(RDH), getreg(RDT), getreg(VET), getreg(ICS), |
874 |
getreg(TDBAL), getreg(TDBAH), getreg(RDBAH), getreg(RDBAL), |
875 |
getreg(TDLEN), getreg(RDLEN), |
876 |
|
877 |
[TOTH] = mac_read_clr8, [TORH] = mac_read_clr8, [GPRC] = mac_read_clr4, |
878 |
[GPTC] = mac_read_clr4, [TPR] = mac_read_clr4, [TPT] = mac_read_clr4, |
879 |
[ICR] = mac_icr_read, [EECD] = get_eecd, [EERD] = flash_eerd_read, |
880 |
[CRCERRS ... MPC] = &mac_readreg, |
881 |
[RA ... RA+31] = &mac_readreg,
|
882 |
[MTA ... MTA+127] = &mac_readreg,
|
883 |
[VFTA ... VFTA+127] = &mac_readreg,
|
884 |
}; |
885 |
enum { NREADOPS = ARRAY_SIZE(macreg_readops) };
|
886 |
|
887 |
#define putreg(x) [x] = mac_writereg
|
888 |
static void (*macreg_writeops[])(E1000State *, int, uint32_t) = { |
889 |
putreg(PBA), putreg(EERD), putreg(SWSM), putreg(WUFC), |
890 |
putreg(TDBAL), putreg(TDBAH), putreg(TXDCTL), putreg(RDBAH), |
891 |
putreg(RDBAL), putreg(LEDCTL), putreg(VET), |
892 |
[TDLEN] = set_dlen, [RDLEN] = set_dlen, [TCTL] = set_tctl, |
893 |
[TDT] = set_tctl, [MDIC] = set_mdic, [ICS] = set_ics, |
894 |
[TDH] = set_16bit, [RDH] = set_16bit, [RDT] = set_rdt, |
895 |
[IMC] = set_imc, [IMS] = set_ims, [ICR] = set_icr, |
896 |
[EECD] = set_eecd, [RCTL] = set_rx_control, [CTRL] = set_ctrl, |
897 |
[RA ... RA+31] = &mac_writereg,
|
898 |
[MTA ... MTA+127] = &mac_writereg,
|
899 |
[VFTA ... VFTA+127] = &mac_writereg,
|
900 |
}; |
901 |
enum { NWRITEOPS = ARRAY_SIZE(macreg_writeops) };
|
902 |
|
903 |
static void |
904 |
e1000_mmio_write(void *opaque, target_phys_addr_t addr, uint64_t val,
|
905 |
unsigned size)
|
906 |
{ |
907 |
E1000State *s = opaque; |
908 |
unsigned int index = (addr & 0x1ffff) >> 2; |
909 |
|
910 |
if (index < NWRITEOPS && macreg_writeops[index]) {
|
911 |
macreg_writeops[index](s, index, val); |
912 |
} else if (index < NREADOPS && macreg_readops[index]) { |
913 |
DBGOUT(MMIO, "e1000_mmio_writel RO %x: 0x%04"PRIx64"\n", index<<2, val); |
914 |
} else {
|
915 |
DBGOUT(UNKNOWN, "MMIO unknown write addr=0x%08x,val=0x%08"PRIx64"\n", |
916 |
index<<2, val);
|
917 |
} |
918 |
} |
919 |
|
920 |
static uint64_t
|
921 |
e1000_mmio_read(void *opaque, target_phys_addr_t addr, unsigned size) |
922 |
{ |
923 |
E1000State *s = opaque; |
924 |
unsigned int index = (addr & 0x1ffff) >> 2; |
925 |
|
926 |
if (index < NREADOPS && macreg_readops[index])
|
927 |
{ |
928 |
return macreg_readops[index](s, index);
|
929 |
} |
930 |
DBGOUT(UNKNOWN, "MMIO unknown read addr=0x%08x\n", index<<2); |
931 |
return 0; |
932 |
} |
933 |
|
934 |
static const MemoryRegionOps e1000_mmio_ops = { |
935 |
.read = e1000_mmio_read, |
936 |
.write = e1000_mmio_write, |
937 |
.endianness = DEVICE_LITTLE_ENDIAN, |
938 |
.impl = { |
939 |
.min_access_size = 4,
|
940 |
.max_access_size = 4,
|
941 |
}, |
942 |
}; |
943 |
|
944 |
static uint64_t e1000_io_read(void *opaque, target_phys_addr_t addr, |
945 |
unsigned size)
|
946 |
{ |
947 |
E1000State *s = opaque; |
948 |
|
949 |
(void)s;
|
950 |
return 0; |
951 |
} |
952 |
|
953 |
static void e1000_io_write(void *opaque, target_phys_addr_t addr, |
954 |
uint64_t val, unsigned size)
|
955 |
{ |
956 |
E1000State *s = opaque; |
957 |
|
958 |
(void)s;
|
959 |
} |
960 |
|
961 |
static const MemoryRegionOps e1000_io_ops = { |
962 |
.read = e1000_io_read, |
963 |
.write = e1000_io_write, |
964 |
.endianness = DEVICE_LITTLE_ENDIAN, |
965 |
}; |
966 |
|
967 |
static bool is_version_1(void *opaque, int version_id) |
968 |
{ |
969 |
return version_id == 1; |
970 |
} |
971 |
|
972 |
static const VMStateDescription vmstate_e1000 = { |
973 |
.name = "e1000",
|
974 |
.version_id = 2,
|
975 |
.minimum_version_id = 1,
|
976 |
.minimum_version_id_old = 1,
|
977 |
.fields = (VMStateField []) { |
978 |
VMSTATE_PCI_DEVICE(dev, E1000State), |
979 |
VMSTATE_UNUSED_TEST(is_version_1, 4), /* was instance id */ |
980 |
VMSTATE_UNUSED(4), /* Was mmio_base. */ |
981 |
VMSTATE_UINT32(rxbuf_size, E1000State), |
982 |
VMSTATE_UINT32(rxbuf_min_shift, E1000State), |
983 |
VMSTATE_UINT32(eecd_state.val_in, E1000State), |
984 |
VMSTATE_UINT16(eecd_state.bitnum_in, E1000State), |
985 |
VMSTATE_UINT16(eecd_state.bitnum_out, E1000State), |
986 |
VMSTATE_UINT16(eecd_state.reading, E1000State), |
987 |
VMSTATE_UINT32(eecd_state.old_eecd, E1000State), |
988 |
VMSTATE_UINT8(tx.ipcss, E1000State), |
989 |
VMSTATE_UINT8(tx.ipcso, E1000State), |
990 |
VMSTATE_UINT16(tx.ipcse, E1000State), |
991 |
VMSTATE_UINT8(tx.tucss, E1000State), |
992 |
VMSTATE_UINT8(tx.tucso, E1000State), |
993 |
VMSTATE_UINT16(tx.tucse, E1000State), |
994 |
VMSTATE_UINT32(tx.paylen, E1000State), |
995 |
VMSTATE_UINT8(tx.hdr_len, E1000State), |
996 |
VMSTATE_UINT16(tx.mss, E1000State), |
997 |
VMSTATE_UINT16(tx.size, E1000State), |
998 |
VMSTATE_UINT16(tx.tso_frames, E1000State), |
999 |
VMSTATE_UINT8(tx.sum_needed, E1000State), |
1000 |
VMSTATE_INT8(tx.ip, E1000State), |
1001 |
VMSTATE_INT8(tx.tcp, E1000State), |
1002 |
VMSTATE_BUFFER(tx.header, E1000State), |
1003 |
VMSTATE_BUFFER(tx.data, E1000State), |
1004 |
VMSTATE_UINT16_ARRAY(eeprom_data, E1000State, 64),
|
1005 |
VMSTATE_UINT16_ARRAY(phy_reg, E1000State, 0x20),
|
1006 |
VMSTATE_UINT32(mac_reg[CTRL], E1000State), |
1007 |
VMSTATE_UINT32(mac_reg[EECD], E1000State), |
1008 |
VMSTATE_UINT32(mac_reg[EERD], E1000State), |
1009 |
VMSTATE_UINT32(mac_reg[GPRC], E1000State), |
1010 |
VMSTATE_UINT32(mac_reg[GPTC], E1000State), |
1011 |
VMSTATE_UINT32(mac_reg[ICR], E1000State), |
1012 |
VMSTATE_UINT32(mac_reg[ICS], E1000State), |
1013 |
VMSTATE_UINT32(mac_reg[IMC], E1000State), |
1014 |
VMSTATE_UINT32(mac_reg[IMS], E1000State), |
1015 |
VMSTATE_UINT32(mac_reg[LEDCTL], E1000State), |
1016 |
VMSTATE_UINT32(mac_reg[MANC], E1000State), |
1017 |
VMSTATE_UINT32(mac_reg[MDIC], E1000State), |
1018 |
VMSTATE_UINT32(mac_reg[MPC], E1000State), |
1019 |
VMSTATE_UINT32(mac_reg[PBA], E1000State), |
1020 |
VMSTATE_UINT32(mac_reg[RCTL], E1000State), |
1021 |
VMSTATE_UINT32(mac_reg[RDBAH], E1000State), |
1022 |
VMSTATE_UINT32(mac_reg[RDBAL], E1000State), |
1023 |
VMSTATE_UINT32(mac_reg[RDH], E1000State), |
1024 |
VMSTATE_UINT32(mac_reg[RDLEN], E1000State), |
1025 |
VMSTATE_UINT32(mac_reg[RDT], E1000State), |
1026 |
VMSTATE_UINT32(mac_reg[STATUS], E1000State), |
1027 |
VMSTATE_UINT32(mac_reg[SWSM], E1000State), |
1028 |
VMSTATE_UINT32(mac_reg[TCTL], E1000State), |
1029 |
VMSTATE_UINT32(mac_reg[TDBAH], E1000State), |
1030 |
VMSTATE_UINT32(mac_reg[TDBAL], E1000State), |
1031 |
VMSTATE_UINT32(mac_reg[TDH], E1000State), |
1032 |
VMSTATE_UINT32(mac_reg[TDLEN], E1000State), |
1033 |
VMSTATE_UINT32(mac_reg[TDT], E1000State), |
1034 |
VMSTATE_UINT32(mac_reg[TORH], E1000State), |
1035 |
VMSTATE_UINT32(mac_reg[TORL], E1000State), |
1036 |
VMSTATE_UINT32(mac_reg[TOTH], E1000State), |
1037 |
VMSTATE_UINT32(mac_reg[TOTL], E1000State), |
1038 |
VMSTATE_UINT32(mac_reg[TPR], E1000State), |
1039 |
VMSTATE_UINT32(mac_reg[TPT], E1000State), |
1040 |
VMSTATE_UINT32(mac_reg[TXDCTL], E1000State), |
1041 |
VMSTATE_UINT32(mac_reg[WUFC], E1000State), |
1042 |
VMSTATE_UINT32(mac_reg[VET], E1000State), |
1043 |
VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, RA, 32),
|
1044 |
VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, MTA, 128),
|
1045 |
VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, VFTA, 128),
|
1046 |
VMSTATE_END_OF_LIST() |
1047 |
} |
1048 |
}; |
1049 |
|
1050 |
static const uint16_t e1000_eeprom_template[64] = { |
1051 |
0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0x0000, 0x0000, 0x0000, |
1052 |
0x3000, 0x1000, 0x6403, E1000_DEVID, 0x8086, E1000_DEVID, 0x8086, 0x3040, |
1053 |
0x0008, 0x2000, 0x7e14, 0x0048, 0x1000, 0x00d8, 0x0000, 0x2700, |
1054 |
0x6cc9, 0x3150, 0x0722, 0x040b, 0x0984, 0x0000, 0xc000, 0x0706, |
1055 |
0x1008, 0x0000, 0x0f04, 0x7fff, 0x4d01, 0xffff, 0xffff, 0xffff, |
1056 |
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
1057 |
0x0100, 0x4000, 0x121c, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
1058 |
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, |
1059 |
}; |
1060 |
|
1061 |
static const uint16_t phy_reg_init[] = { |
1062 |
[PHY_CTRL] = 0x1140, [PHY_STATUS] = 0x796d, // link initially up |
1063 |
[PHY_ID1] = 0x141, [PHY_ID2] = PHY_ID2_INIT,
|
1064 |
[PHY_1000T_CTRL] = 0x0e00, [M88E1000_PHY_SPEC_CTRL] = 0x360, |
1065 |
[M88E1000_EXT_PHY_SPEC_CTRL] = 0x0d60, [PHY_AUTONEG_ADV] = 0xde1, |
1066 |
[PHY_LP_ABILITY] = 0x1e0, [PHY_1000T_STATUS] = 0x3c00, |
1067 |
[M88E1000_PHY_SPEC_STATUS] = 0xac00,
|
1068 |
}; |
1069 |
|
1070 |
static const uint32_t mac_reg_init[] = { |
1071 |
[PBA] = 0x00100030,
|
1072 |
[LEDCTL] = 0x602,
|
1073 |
[CTRL] = E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN0 | |
1074 |
E1000_CTRL_SPD_1000 | E1000_CTRL_SLU, |
1075 |
[STATUS] = 0x80000000 | E1000_STATUS_GIO_MASTER_ENABLE |
|
1076 |
E1000_STATUS_ASDV | E1000_STATUS_MTXCKOK | |
1077 |
E1000_STATUS_SPEED_1000 | E1000_STATUS_FD | |
1078 |
E1000_STATUS_LU, |
1079 |
[MANC] = E1000_MANC_EN_MNG2HOST | E1000_MANC_RCV_TCO_EN | |
1080 |
E1000_MANC_ARP_EN | E1000_MANC_0298_EN | |
1081 |
E1000_MANC_RMCP_EN, |
1082 |
}; |
1083 |
|
1084 |
/* PCI interface */
|
1085 |
|
1086 |
static void |
1087 |
e1000_mmio_setup(E1000State *d) |
1088 |
{ |
1089 |
int i;
|
1090 |
const uint32_t excluded_regs[] = {
|
1091 |
E1000_MDIC, E1000_ICR, E1000_ICS, E1000_IMS, |
1092 |
E1000_IMC, E1000_TCTL, E1000_TDT, PNPMMIO_SIZE |
1093 |
}; |
1094 |
|
1095 |
memory_region_init_io(&d->mmio, &e1000_mmio_ops, d, "e1000-mmio",
|
1096 |
PNPMMIO_SIZE); |
1097 |
memory_region_add_coalescing(&d->mmio, 0, excluded_regs[0]); |
1098 |
for (i = 0; excluded_regs[i] != PNPMMIO_SIZE; i++) |
1099 |
memory_region_add_coalescing(&d->mmio, excluded_regs[i] + 4,
|
1100 |
excluded_regs[i+1] - excluded_regs[i] - 4); |
1101 |
memory_region_init_io(&d->io, &e1000_io_ops, d, "e1000-io", IOPORT_SIZE);
|
1102 |
} |
1103 |
|
1104 |
static void |
1105 |
e1000_cleanup(VLANClientState *nc) |
1106 |
{ |
1107 |
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
1108 |
|
1109 |
s->nic = NULL;
|
1110 |
} |
1111 |
|
1112 |
static int |
1113 |
pci_e1000_uninit(PCIDevice *dev) |
1114 |
{ |
1115 |
E1000State *d = DO_UPCAST(E1000State, dev, dev); |
1116 |
|
1117 |
memory_region_destroy(&d->mmio); |
1118 |
memory_region_destroy(&d->io); |
1119 |
qemu_del_vlan_client(&d->nic->nc); |
1120 |
return 0; |
1121 |
} |
1122 |
|
1123 |
static void e1000_reset(void *opaque) |
1124 |
{ |
1125 |
E1000State *d = opaque; |
1126 |
|
1127 |
memset(d->phy_reg, 0, sizeof d->phy_reg); |
1128 |
memmove(d->phy_reg, phy_reg_init, sizeof phy_reg_init);
|
1129 |
memset(d->mac_reg, 0, sizeof d->mac_reg); |
1130 |
memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
|
1131 |
d->rxbuf_min_shift = 1;
|
1132 |
memset(&d->tx, 0, sizeof d->tx); |
1133 |
} |
1134 |
|
1135 |
static NetClientInfo net_e1000_info = {
|
1136 |
.type = NET_CLIENT_TYPE_NIC, |
1137 |
.size = sizeof(NICState),
|
1138 |
.can_receive = e1000_can_receive, |
1139 |
.receive = e1000_receive, |
1140 |
.cleanup = e1000_cleanup, |
1141 |
.link_status_changed = e1000_set_link_status, |
1142 |
}; |
1143 |
|
1144 |
static int pci_e1000_init(PCIDevice *pci_dev) |
1145 |
{ |
1146 |
E1000State *d = DO_UPCAST(E1000State, dev, pci_dev); |
1147 |
uint8_t *pci_conf; |
1148 |
uint16_t checksum = 0;
|
1149 |
int i;
|
1150 |
uint8_t *macaddr; |
1151 |
|
1152 |
pci_conf = d->dev.config; |
1153 |
|
1154 |
/* TODO: we have no capabilities, so why is this bit set? */
|
1155 |
pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_CAP_LIST); |
1156 |
/* TODO: RST# value should be 0, PCI spec 6.2.4 */
|
1157 |
pci_conf[PCI_CACHE_LINE_SIZE] = 0x10;
|
1158 |
|
1159 |
/* TODO: RST# value should be 0 if programmable, PCI spec 6.2.4 */
|
1160 |
pci_conf[PCI_INTERRUPT_PIN] = 1; // interrupt pin 0 |
1161 |
|
1162 |
e1000_mmio_setup(d); |
1163 |
|
1164 |
pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
|
1165 |
|
1166 |
pci_register_bar(&d->dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->io);
|
1167 |
|
1168 |
memmove(d->eeprom_data, e1000_eeprom_template, |
1169 |
sizeof e1000_eeprom_template);
|
1170 |
qemu_macaddr_default_if_unset(&d->conf.macaddr); |
1171 |
macaddr = d->conf.macaddr.a; |
1172 |
for (i = 0; i < 3; i++) |
1173 |
d->eeprom_data[i] = (macaddr[2*i+1]<<8) | macaddr[2*i]; |
1174 |
for (i = 0; i < EEPROM_CHECKSUM_REG; i++) |
1175 |
checksum += d->eeprom_data[i]; |
1176 |
checksum = (uint16_t) EEPROM_SUM - checksum; |
1177 |
d->eeprom_data[EEPROM_CHECKSUM_REG] = checksum; |
1178 |
|
1179 |
d->nic = qemu_new_nic(&net_e1000_info, &d->conf, |
1180 |
d->dev.qdev.info->name, d->dev.qdev.id, d); |
1181 |
|
1182 |
qemu_format_nic_info_str(&d->nic->nc, macaddr); |
1183 |
|
1184 |
add_boot_device_path(d->conf.bootindex, &pci_dev->qdev, "/ethernet-phy@0");
|
1185 |
|
1186 |
return 0; |
1187 |
} |
1188 |
|
1189 |
static void qdev_e1000_reset(DeviceState *dev) |
1190 |
{ |
1191 |
E1000State *d = DO_UPCAST(E1000State, dev.qdev, dev); |
1192 |
e1000_reset(d); |
1193 |
} |
1194 |
|
1195 |
static PCIDeviceInfo e1000_info = {
|
1196 |
.qdev.name = "e1000",
|
1197 |
.qdev.desc = "Intel Gigabit Ethernet",
|
1198 |
.qdev.size = sizeof(E1000State),
|
1199 |
.qdev.reset = qdev_e1000_reset, |
1200 |
.qdev.vmsd = &vmstate_e1000, |
1201 |
.init = pci_e1000_init, |
1202 |
.exit = pci_e1000_uninit, |
1203 |
.romfile = "pxe-e1000.rom",
|
1204 |
.vendor_id = PCI_VENDOR_ID_INTEL, |
1205 |
.device_id = E1000_DEVID, |
1206 |
.revision = 0x03,
|
1207 |
.class_id = PCI_CLASS_NETWORK_ETHERNET, |
1208 |
.qdev.props = (Property[]) { |
1209 |
DEFINE_NIC_PROPERTIES(E1000State, conf), |
1210 |
DEFINE_PROP_END_OF_LIST(), |
1211 |
} |
1212 |
}; |
1213 |
|
1214 |
static void e1000_register_devices(void) |
1215 |
{ |
1216 |
pci_qdev_register(&e1000_info); |
1217 |
} |
1218 |
|
1219 |
device_init(e1000_register_devices) |