b1332393cd
Once again, the emulation of the EERD and ICS registers in e1000.c is incorrect. Nobody has noticed this before because none of the Intel-written e1000 drivers use these registers, and all of the independently written open source drivers copy Intel's example, so they don't use them either. Regardless, these registers are documented in the programmer's manuals, and their emulated behavior doesn't match the verified behavior of real hardware, so any software that does use them doesn't function correctly. -Bill Signed-off-by: Bill Paul <wpaul@windriver.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1149 lines
36 KiB
C
1149 lines
36 KiB
C
/*
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* QEMU e1000 emulation
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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 "e1000_hw.h"
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#define DEBUG
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#ifdef 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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/*
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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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VLANClientState *vc;
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int mmio_index;
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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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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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ioport_map(PCIDevice *pci_dev, int region_num, uint32_t addr,
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uint32_t size, int type)
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{
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DBGOUT(IO, "e1000_ioport_map addr=0x%04x size=0x%08x\n", addr, size);
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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_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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if (!(val & E1000_EECD_CS)) { // rising, no CS (EEPROM reset)
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memset(&s->eecd_state, 0, sizeof s->eecd_state);
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/*
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* restore old_eecd's E1000_EECD_SK (known to be on)
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* to avoid false detection of a clock edge
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*/
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s->eecd_state.old_eecd = E1000_EECD_SK;
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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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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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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);
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}
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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);
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}
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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)));
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}
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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);
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}
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static void
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xmit_seg(E1000State *s)
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{
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uint16_t len, *sp;
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unsigned int frames = s->tx.tso_frames, css, sofar, n;
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struct e1000_tx *tp = &s->tx;
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if (tp->tse && tp->cptse) {
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css = tp->ipcss;
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DBGOUT(TXSUM, "frames %d size %d ipcss %d\n",
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frames, tp->size, css);
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if (tp->ip) { // IPv4
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cpu_to_be16wu((uint16_t *)(tp->data+css+2),
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tp->size - css);
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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
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cpu_to_be16wu((uint16_t *)(tp->data+css+4),
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tp->size - css);
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css = tp->tucss;
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len = tp->size - css;
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DBGOUT(TXSUM, "tcp %d tucss %d len %d\n", tp->tcp, css, len);
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if (tp->tcp) {
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sofar = frames * tp->mss;
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cpu_to_be32wu((uint32_t *)(tp->data+css+4), // seq
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be32_to_cpupu((uint32_t *)(tp->data+css+4))+sofar);
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if (tp->paylen - sofar > tp->mss)
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tp->data[css + 13] &= ~9; // PSH, FIN
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} else // UDP
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cpu_to_be16wu((uint16_t *)(tp->data+css+4), len);
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if (tp->sum_needed & E1000_TXD_POPTS_TXSM) {
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// add pseudo-header length before checksum calculation
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sp = (uint16_t *)(tp->data + tp->tucso);
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cpu_to_be16wu(sp, be16_to_cpup(sp) + len);
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}
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tp->tso_frames++;
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}
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if (tp->sum_needed & E1000_TXD_POPTS_TXSM)
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putsum(tp->data, tp->size, tp->tucso, tp->tucss, tp->tucse);
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if (tp->sum_needed & E1000_TXD_POPTS_IXSM)
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putsum(tp->data, tp->size, tp->ipcso, tp->ipcss, tp->ipcse);
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if (tp->vlan_needed) {
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memmove(tp->vlan, tp->data, 12);
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memcpy(tp->data + 8, tp->vlan_header, 4);
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qemu_send_packet(s->vc, tp->vlan, tp->size + 4);
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} else
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qemu_send_packet(s->vc, tp->data, tp->size);
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s->mac_reg[TPT]++;
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s->mac_reg[GPTC]++;
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n = s->mac_reg[TOTL];
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if ((s->mac_reg[TOTL] += s->tx.size) < n)
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s->mac_reg[TOTH]++;
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}
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static void
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process_tx_desc(E1000State *s, struct e1000_tx_desc *dp)
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{
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uint32_t txd_lower = le32_to_cpu(dp->lower.data);
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uint32_t dtype = txd_lower & (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D);
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unsigned int split_size = txd_lower & 0xffff, bytes, sz, op;
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unsigned int msh = 0xfffff, hdr = 0;
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uint64_t addr;
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struct e1000_context_desc *xp = (struct e1000_context_desc *)dp;
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struct e1000_tx *tp = &s->tx;
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if (dtype == E1000_TXD_CMD_DEXT) { // context descriptor
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op = le32_to_cpu(xp->cmd_and_length);
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tp->ipcss = xp->lower_setup.ip_fields.ipcss;
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tp->ipcso = xp->lower_setup.ip_fields.ipcso;
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tp->ipcse = le16_to_cpu(xp->lower_setup.ip_fields.ipcse);
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tp->tucss = xp->upper_setup.tcp_fields.tucss;
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tp->tucso = xp->upper_setup.tcp_fields.tucso;
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tp->tucse = le16_to_cpu(xp->upper_setup.tcp_fields.tucse);
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tp->paylen = op & 0xfffff;
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tp->hdr_len = xp->tcp_seg_setup.fields.hdr_len;
|
|
tp->mss = le16_to_cpu(xp->tcp_seg_setup.fields.mss);
|
|
tp->ip = (op & E1000_TXD_CMD_IP) ? 1 : 0;
|
|
tp->tcp = (op & E1000_TXD_CMD_TCP) ? 1 : 0;
|
|
tp->tse = (op & E1000_TXD_CMD_TSE) ? 1 : 0;
|
|
tp->tso_frames = 0;
|
|
if (tp->tucso == 0) { // this is probably wrong
|
|
DBGOUT(TXSUM, "TCP/UDP: cso 0!\n");
|
|
tp->tucso = tp->tucss + (tp->tcp ? 16 : 6);
|
|
}
|
|
return;
|
|
} else if (dtype == (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D)) {
|
|
// data descriptor
|
|
tp->sum_needed = le32_to_cpu(dp->upper.data) >> 8;
|
|
tp->cptse = ( txd_lower & E1000_TXD_CMD_TSE ) ? 1 : 0;
|
|
} else
|
|
// legacy descriptor
|
|
tp->cptse = 0;
|
|
|
|
if (vlan_enabled(s) && is_vlan_txd(txd_lower) &&
|
|
(tp->cptse || txd_lower & E1000_TXD_CMD_EOP)) {
|
|
tp->vlan_needed = 1;
|
|
cpu_to_be16wu((uint16_t *)(tp->vlan_header),
|
|
le16_to_cpup((uint16_t *)(s->mac_reg + VET)));
|
|
cpu_to_be16wu((uint16_t *)(tp->vlan_header + 2),
|
|
le16_to_cpu(dp->upper.fields.special));
|
|
}
|
|
|
|
addr = le64_to_cpu(dp->buffer_addr);
|
|
if (tp->tse && tp->cptse) {
|
|
hdr = tp->hdr_len;
|
|
msh = hdr + tp->mss;
|
|
do {
|
|
bytes = split_size;
|
|
if (tp->size + bytes > msh)
|
|
bytes = msh - tp->size;
|
|
cpu_physical_memory_read(addr, tp->data + tp->size, bytes);
|
|
if ((sz = tp->size + bytes) >= hdr && tp->size < hdr)
|
|
memmove(tp->header, tp->data, hdr);
|
|
tp->size = sz;
|
|
addr += bytes;
|
|
if (sz == msh) {
|
|
xmit_seg(s);
|
|
memmove(tp->data, tp->header, hdr);
|
|
tp->size = hdr;
|
|
}
|
|
} while (split_size -= bytes);
|
|
} else if (!tp->tse && tp->cptse) {
|
|
// context descriptor TSE is not set, while data descriptor TSE is set
|
|
DBGOUT(TXERR, "TCP segmentaion Error\n");
|
|
} else {
|
|
cpu_physical_memory_read(addr, tp->data + tp->size, split_size);
|
|
tp->size += split_size;
|
|
}
|
|
|
|
if (!(txd_lower & E1000_TXD_CMD_EOP))
|
|
return;
|
|
if (!(tp->tse && tp->cptse && tp->size < hdr))
|
|
xmit_seg(s);
|
|
tp->tso_frames = 0;
|
|
tp->sum_needed = 0;
|
|
tp->vlan_needed = 0;
|
|
tp->size = 0;
|
|
tp->cptse = 0;
|
|
}
|
|
|
|
static uint32_t
|
|
txdesc_writeback(target_phys_addr_t base, struct e1000_tx_desc *dp)
|
|
{
|
|
uint32_t txd_upper, txd_lower = le32_to_cpu(dp->lower.data);
|
|
|
|
if (!(txd_lower & (E1000_TXD_CMD_RS|E1000_TXD_CMD_RPS)))
|
|
return 0;
|
|
txd_upper = (le32_to_cpu(dp->upper.data) | E1000_TXD_STAT_DD) &
|
|
~(E1000_TXD_STAT_EC | E1000_TXD_STAT_LC | E1000_TXD_STAT_TU);
|
|
dp->upper.data = cpu_to_le32(txd_upper);
|
|
cpu_physical_memory_write(base + ((char *)&dp->upper - (char *)dp),
|
|
(void *)&dp->upper, sizeof(dp->upper));
|
|
return E1000_ICR_TXDW;
|
|
}
|
|
|
|
static void
|
|
start_xmit(E1000State *s)
|
|
{
|
|
target_phys_addr_t base;
|
|
struct e1000_tx_desc desc;
|
|
uint32_t tdh_start = s->mac_reg[TDH], cause = E1000_ICS_TXQE;
|
|
|
|
if (!(s->mac_reg[TCTL] & E1000_TCTL_EN)) {
|
|
DBGOUT(TX, "tx disabled\n");
|
|
return;
|
|
}
|
|
|
|
while (s->mac_reg[TDH] != s->mac_reg[TDT]) {
|
|
base = ((uint64_t)s->mac_reg[TDBAH] << 32) + s->mac_reg[TDBAL] +
|
|
sizeof(struct e1000_tx_desc) * s->mac_reg[TDH];
|
|
cpu_physical_memory_read(base, (void *)&desc, sizeof(desc));
|
|
|
|
DBGOUT(TX, "index %d: %p : %x %x\n", s->mac_reg[TDH],
|
|
(void *)(intptr_t)desc.buffer_addr, desc.lower.data,
|
|
desc.upper.data);
|
|
|
|
process_tx_desc(s, &desc);
|
|
cause |= txdesc_writeback(base, &desc);
|
|
|
|
if (++s->mac_reg[TDH] * sizeof(desc) >= s->mac_reg[TDLEN])
|
|
s->mac_reg[TDH] = 0;
|
|
/*
|
|
* the following could happen only if guest sw assigns
|
|
* bogus values to TDT/TDLEN.
|
|
* there's nothing too intelligent we could do about this.
|
|
*/
|
|
if (s->mac_reg[TDH] == tdh_start) {
|
|
DBGOUT(TXERR, "TDH wraparound @%x, TDT %x, TDLEN %x\n",
|
|
tdh_start, s->mac_reg[TDT], s->mac_reg[TDLEN]);
|
|
break;
|
|
}
|
|
}
|
|
set_ics(s, 0, cause);
|
|
}
|
|
|
|
static int
|
|
receive_filter(E1000State *s, const uint8_t *buf, int size)
|
|
{
|
|
static uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
|
|
static int mta_shift[] = {4, 3, 2, 0};
|
|
uint32_t f, rctl = s->mac_reg[RCTL], ra[2], *rp;
|
|
|
|
if (is_vlan_packet(s, buf) && vlan_rx_filter_enabled(s)) {
|
|
uint16_t vid = be16_to_cpup((uint16_t *)(buf + 14));
|
|
uint32_t vfta = le32_to_cpup((uint32_t *)(s->mac_reg + VFTA) +
|
|
((vid >> 5) & 0x7f));
|
|
if ((vfta & (1 << (vid & 0x1f))) == 0)
|
|
return 0;
|
|
}
|
|
|
|
if (rctl & E1000_RCTL_UPE) // promiscuous
|
|
return 1;
|
|
|
|
if ((buf[0] & 1) && (rctl & E1000_RCTL_MPE)) // promiscuous mcast
|
|
return 1;
|
|
|
|
if ((rctl & E1000_RCTL_BAM) && !memcmp(buf, bcast, sizeof bcast))
|
|
return 1;
|
|
|
|
for (rp = s->mac_reg + RA; rp < s->mac_reg + RA + 32; rp += 2) {
|
|
if (!(rp[1] & E1000_RAH_AV))
|
|
continue;
|
|
ra[0] = cpu_to_le32(rp[0]);
|
|
ra[1] = cpu_to_le32(rp[1]);
|
|
if (!memcmp(buf, (uint8_t *)ra, 6)) {
|
|
DBGOUT(RXFILTER,
|
|
"unicast match[%d]: %02x:%02x:%02x:%02x:%02x:%02x\n",
|
|
(int)(rp - s->mac_reg - RA)/2,
|
|
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
|
|
return 1;
|
|
}
|
|
}
|
|
DBGOUT(RXFILTER, "unicast mismatch: %02x:%02x:%02x:%02x:%02x:%02x\n",
|
|
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
|
|
|
|
f = mta_shift[(rctl >> E1000_RCTL_MO_SHIFT) & 3];
|
|
f = (((buf[5] << 8) | buf[4]) >> f) & 0xfff;
|
|
if (s->mac_reg[MTA + (f >> 5)] & (1 << (f & 0x1f)))
|
|
return 1;
|
|
DBGOUT(RXFILTER,
|
|
"dropping, inexact filter mismatch: %02x:%02x:%02x:%02x:%02x:%02x MO %d MTA[%d] %x\n",
|
|
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5],
|
|
(rctl >> E1000_RCTL_MO_SHIFT) & 3, f >> 5,
|
|
s->mac_reg[MTA + (f >> 5)]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
e1000_set_link_status(VLANClientState *vc)
|
|
{
|
|
E1000State *s = vc->opaque;
|
|
uint32_t old_status = s->mac_reg[STATUS];
|
|
|
|
if (vc->link_down)
|
|
s->mac_reg[STATUS] &= ~E1000_STATUS_LU;
|
|
else
|
|
s->mac_reg[STATUS] |= E1000_STATUS_LU;
|
|
|
|
if (s->mac_reg[STATUS] != old_status)
|
|
set_ics(s, 0, E1000_ICR_LSC);
|
|
}
|
|
|
|
static int
|
|
e1000_can_receive(VLANClientState *vc)
|
|
{
|
|
E1000State *s = vc->opaque;
|
|
|
|
return (s->mac_reg[RCTL] & E1000_RCTL_EN);
|
|
}
|
|
|
|
static ssize_t
|
|
e1000_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
|
|
{
|
|
E1000State *s = vc->opaque;
|
|
struct e1000_rx_desc desc;
|
|
target_phys_addr_t base;
|
|
unsigned int n, rdt;
|
|
uint32_t rdh_start;
|
|
uint16_t vlan_special = 0;
|
|
uint8_t vlan_status = 0, vlan_offset = 0;
|
|
|
|
if (!(s->mac_reg[RCTL] & E1000_RCTL_EN))
|
|
return -1;
|
|
|
|
if (size > s->rxbuf_size) {
|
|
DBGOUT(RX, "packet too large for buffers (%lu > %d)\n",
|
|
(unsigned long)size, s->rxbuf_size);
|
|
return -1;
|
|
}
|
|
|
|
if (!receive_filter(s, buf, size))
|
|
return size;
|
|
|
|
if (vlan_enabled(s) && is_vlan_packet(s, buf)) {
|
|
vlan_special = cpu_to_le16(be16_to_cpup((uint16_t *)(buf + 14)));
|
|
memmove((void *)(buf + 4), buf, 12);
|
|
vlan_status = E1000_RXD_STAT_VP;
|
|
vlan_offset = 4;
|
|
size -= 4;
|
|
}
|
|
|
|
rdh_start = s->mac_reg[RDH];
|
|
size += 4; // for the header
|
|
do {
|
|
if (s->mac_reg[RDH] == s->mac_reg[RDT] && s->check_rxov) {
|
|
set_ics(s, 0, E1000_ICS_RXO);
|
|
return -1;
|
|
}
|
|
base = ((uint64_t)s->mac_reg[RDBAH] << 32) + s->mac_reg[RDBAL] +
|
|
sizeof(desc) * s->mac_reg[RDH];
|
|
cpu_physical_memory_read(base, (void *)&desc, sizeof(desc));
|
|
desc.special = vlan_special;
|
|
desc.status |= (vlan_status | E1000_RXD_STAT_DD);
|
|
if (desc.buffer_addr) {
|
|
cpu_physical_memory_write(le64_to_cpu(desc.buffer_addr),
|
|
(void *)(buf + vlan_offset), size);
|
|
desc.length = cpu_to_le16(size);
|
|
desc.status |= E1000_RXD_STAT_EOP|E1000_RXD_STAT_IXSM;
|
|
} else // as per intel docs; skip descriptors with null buf addr
|
|
DBGOUT(RX, "Null RX descriptor!!\n");
|
|
cpu_physical_memory_write(base, (void *)&desc, sizeof(desc));
|
|
|
|
if (++s->mac_reg[RDH] * sizeof(desc) >= s->mac_reg[RDLEN])
|
|
s->mac_reg[RDH] = 0;
|
|
s->check_rxov = 1;
|
|
/* see comment in start_xmit; same here */
|
|
if (s->mac_reg[RDH] == rdh_start) {
|
|
DBGOUT(RXERR, "RDH wraparound @%x, RDT %x, RDLEN %x\n",
|
|
rdh_start, s->mac_reg[RDT], s->mac_reg[RDLEN]);
|
|
set_ics(s, 0, E1000_ICS_RXO);
|
|
return -1;
|
|
}
|
|
} while (desc.buffer_addr == 0);
|
|
|
|
s->mac_reg[GPRC]++;
|
|
s->mac_reg[TPR]++;
|
|
n = s->mac_reg[TORL];
|
|
if ((s->mac_reg[TORL] += size) < n)
|
|
s->mac_reg[TORH]++;
|
|
|
|
n = E1000_ICS_RXT0;
|
|
if ((rdt = s->mac_reg[RDT]) < s->mac_reg[RDH])
|
|
rdt += s->mac_reg[RDLEN] / sizeof(desc);
|
|
if (((rdt - s->mac_reg[RDH]) * sizeof(desc)) <= s->mac_reg[RDLEN] >>
|
|
s->rxbuf_min_shift)
|
|
n |= E1000_ICS_RXDMT0;
|
|
|
|
set_ics(s, 0, n);
|
|
|
|
return size;
|
|
}
|
|
|
|
static uint32_t
|
|
mac_readreg(E1000State *s, int index)
|
|
{
|
|
return s->mac_reg[index];
|
|
}
|
|
|
|
static uint32_t
|
|
mac_icr_read(E1000State *s, int index)
|
|
{
|
|
uint32_t ret = s->mac_reg[ICR];
|
|
|
|
DBGOUT(INTERRUPT, "ICR read: %x\n", ret);
|
|
set_interrupt_cause(s, 0, 0);
|
|
return ret;
|
|
}
|
|
|
|
static uint32_t
|
|
mac_read_clr4(E1000State *s, int index)
|
|
{
|
|
uint32_t ret = s->mac_reg[index];
|
|
|
|
s->mac_reg[index] = 0;
|
|
return ret;
|
|
}
|
|
|
|
static uint32_t
|
|
mac_read_clr8(E1000State *s, int index)
|
|
{
|
|
uint32_t ret = s->mac_reg[index];
|
|
|
|
s->mac_reg[index] = 0;
|
|
s->mac_reg[index-1] = 0;
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
mac_writereg(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->mac_reg[index] = val;
|
|
}
|
|
|
|
static void
|
|
set_rdt(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->check_rxov = 0;
|
|
s->mac_reg[index] = val & 0xffff;
|
|
}
|
|
|
|
static void
|
|
set_16bit(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->mac_reg[index] = val & 0xffff;
|
|
}
|
|
|
|
static void
|
|
set_dlen(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->mac_reg[index] = val & 0xfff80;
|
|
}
|
|
|
|
static void
|
|
set_tctl(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->mac_reg[index] = val;
|
|
s->mac_reg[TDT] &= 0xffff;
|
|
start_xmit(s);
|
|
}
|
|
|
|
static void
|
|
set_icr(E1000State *s, int index, uint32_t val)
|
|
{
|
|
DBGOUT(INTERRUPT, "set_icr %x\n", val);
|
|
set_interrupt_cause(s, 0, s->mac_reg[ICR] & ~val);
|
|
}
|
|
|
|
static void
|
|
set_imc(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->mac_reg[IMS] &= ~val;
|
|
set_ics(s, 0, 0);
|
|
}
|
|
|
|
static void
|
|
set_ims(E1000State *s, int index, uint32_t val)
|
|
{
|
|
s->mac_reg[IMS] |= val;
|
|
set_ics(s, 0, 0);
|
|
}
|
|
|
|
#define getreg(x) [x] = mac_readreg
|
|
static uint32_t (*macreg_readops[])(E1000State *, int) = {
|
|
getreg(PBA), getreg(RCTL), getreg(TDH), getreg(TXDCTL),
|
|
getreg(WUFC), getreg(TDT), getreg(CTRL), getreg(LEDCTL),
|
|
getreg(MANC), getreg(MDIC), getreg(SWSM), getreg(STATUS),
|
|
getreg(TORL), getreg(TOTL), getreg(IMS), getreg(TCTL),
|
|
getreg(RDH), getreg(RDT), getreg(VET), getreg(ICS),
|
|
|
|
[TOTH] = mac_read_clr8, [TORH] = mac_read_clr8, [GPRC] = mac_read_clr4,
|
|
[GPTC] = mac_read_clr4, [TPR] = mac_read_clr4, [TPT] = mac_read_clr4,
|
|
[ICR] = mac_icr_read, [EECD] = get_eecd, [EERD] = flash_eerd_read,
|
|
[CRCERRS ... MPC] = &mac_readreg,
|
|
[RA ... RA+31] = &mac_readreg,
|
|
[MTA ... MTA+127] = &mac_readreg,
|
|
[VFTA ... VFTA+127] = &mac_readreg,
|
|
};
|
|
enum { NREADOPS = ARRAY_SIZE(macreg_readops) };
|
|
|
|
#define putreg(x) [x] = mac_writereg
|
|
static void (*macreg_writeops[])(E1000State *, int, uint32_t) = {
|
|
putreg(PBA), putreg(EERD), putreg(SWSM), putreg(WUFC),
|
|
putreg(TDBAL), putreg(TDBAH), putreg(TXDCTL), putreg(RDBAH),
|
|
putreg(RDBAL), putreg(LEDCTL), putreg(VET),
|
|
[TDLEN] = set_dlen, [RDLEN] = set_dlen, [TCTL] = set_tctl,
|
|
[TDT] = set_tctl, [MDIC] = set_mdic, [ICS] = set_ics,
|
|
[TDH] = set_16bit, [RDH] = set_16bit, [RDT] = set_rdt,
|
|
[IMC] = set_imc, [IMS] = set_ims, [ICR] = set_icr,
|
|
[EECD] = set_eecd, [RCTL] = set_rx_control, [CTRL] = set_ctrl,
|
|
[RA ... RA+31] = &mac_writereg,
|
|
[MTA ... MTA+127] = &mac_writereg,
|
|
[VFTA ... VFTA+127] = &mac_writereg,
|
|
};
|
|
enum { NWRITEOPS = ARRAY_SIZE(macreg_writeops) };
|
|
|
|
static void
|
|
e1000_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
E1000State *s = opaque;
|
|
unsigned int index = (addr & 0x1ffff) >> 2;
|
|
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
val = bswap32(val);
|
|
#endif
|
|
if (index < NWRITEOPS && macreg_writeops[index])
|
|
macreg_writeops[index](s, index, val);
|
|
else if (index < NREADOPS && macreg_readops[index])
|
|
DBGOUT(MMIO, "e1000_mmio_writel RO %x: 0x%04x\n", index<<2, val);
|
|
else
|
|
DBGOUT(UNKNOWN, "MMIO unknown write addr=0x%08x,val=0x%08x\n",
|
|
index<<2, val);
|
|
}
|
|
|
|
static void
|
|
e1000_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
// emulate hw without byte enables: no RMW
|
|
e1000_mmio_writel(opaque, addr & ~3,
|
|
(val & 0xffff) << (8*(addr & 3)));
|
|
}
|
|
|
|
static void
|
|
e1000_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
// emulate hw without byte enables: no RMW
|
|
e1000_mmio_writel(opaque, addr & ~3,
|
|
(val & 0xff) << (8*(addr & 3)));
|
|
}
|
|
|
|
static uint32_t
|
|
e1000_mmio_readl(void *opaque, target_phys_addr_t addr)
|
|
{
|
|
E1000State *s = opaque;
|
|
unsigned int index = (addr & 0x1ffff) >> 2;
|
|
|
|
if (index < NREADOPS && macreg_readops[index])
|
|
{
|
|
uint32_t val = macreg_readops[index](s, index);
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
val = bswap32(val);
|
|
#endif
|
|
return val;
|
|
}
|
|
DBGOUT(UNKNOWN, "MMIO unknown read addr=0x%08x\n", index<<2);
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t
|
|
e1000_mmio_readb(void *opaque, target_phys_addr_t addr)
|
|
{
|
|
return ((e1000_mmio_readl(opaque, addr & ~3)) >>
|
|
(8 * (addr & 3))) & 0xff;
|
|
}
|
|
|
|
static uint32_t
|
|
e1000_mmio_readw(void *opaque, target_phys_addr_t addr)
|
|
{
|
|
return ((e1000_mmio_readl(opaque, addr & ~3)) >>
|
|
(8 * (addr & 3))) & 0xffff;
|
|
}
|
|
|
|
static const int mac_regtosave[] = {
|
|
CTRL, EECD, EERD, GPRC, GPTC, ICR, ICS, IMC, IMS,
|
|
LEDCTL, MANC, MDIC, MPC, PBA, RCTL, RDBAH, RDBAL, RDH,
|
|
RDLEN, RDT, STATUS, SWSM, TCTL, TDBAH, TDBAL, TDH, TDLEN,
|
|
TDT, TORH, TORL, TOTH, TOTL, TPR, TPT, TXDCTL, WUFC,
|
|
VET,
|
|
};
|
|
enum { MAC_NSAVE = ARRAY_SIZE(mac_regtosave) };
|
|
|
|
static const struct {
|
|
int size;
|
|
int array0;
|
|
} mac_regarraystosave[] = { {32, RA}, {128, MTA}, {128, VFTA} };
|
|
enum { MAC_NARRAYS = ARRAY_SIZE(mac_regarraystosave) };
|
|
|
|
static void
|
|
nic_save(QEMUFile *f, void *opaque)
|
|
{
|
|
E1000State *s = (E1000State *)opaque;
|
|
int i, j;
|
|
|
|
pci_device_save(&s->dev, f);
|
|
qemu_put_be32(f, 0);
|
|
qemu_put_be32s(f, &s->rxbuf_size);
|
|
qemu_put_be32s(f, &s->rxbuf_min_shift);
|
|
qemu_put_be32s(f, &s->eecd_state.val_in);
|
|
qemu_put_be16s(f, &s->eecd_state.bitnum_in);
|
|
qemu_put_be16s(f, &s->eecd_state.bitnum_out);
|
|
qemu_put_be16s(f, &s->eecd_state.reading);
|
|
qemu_put_be32s(f, &s->eecd_state.old_eecd);
|
|
qemu_put_8s(f, &s->tx.ipcss);
|
|
qemu_put_8s(f, &s->tx.ipcso);
|
|
qemu_put_be16s(f, &s->tx.ipcse);
|
|
qemu_put_8s(f, &s->tx.tucss);
|
|
qemu_put_8s(f, &s->tx.tucso);
|
|
qemu_put_be16s(f, &s->tx.tucse);
|
|
qemu_put_be32s(f, &s->tx.paylen);
|
|
qemu_put_8s(f, &s->tx.hdr_len);
|
|
qemu_put_be16s(f, &s->tx.mss);
|
|
qemu_put_be16s(f, &s->tx.size);
|
|
qemu_put_be16s(f, &s->tx.tso_frames);
|
|
qemu_put_8s(f, &s->tx.sum_needed);
|
|
qemu_put_s8s(f, &s->tx.ip);
|
|
qemu_put_s8s(f, &s->tx.tcp);
|
|
qemu_put_buffer(f, s->tx.header, sizeof s->tx.header);
|
|
qemu_put_buffer(f, s->tx.data, sizeof s->tx.data);
|
|
for (i = 0; i < 64; i++)
|
|
qemu_put_be16s(f, s->eeprom_data + i);
|
|
for (i = 0; i < 0x20; i++)
|
|
qemu_put_be16s(f, s->phy_reg + i);
|
|
for (i = 0; i < MAC_NSAVE; i++)
|
|
qemu_put_be32s(f, s->mac_reg + mac_regtosave[i]);
|
|
for (i = 0; i < MAC_NARRAYS; i++)
|
|
for (j = 0; j < mac_regarraystosave[i].size; j++)
|
|
qemu_put_be32s(f,
|
|
s->mac_reg + mac_regarraystosave[i].array0 + j);
|
|
}
|
|
|
|
static int
|
|
nic_load(QEMUFile *f, void *opaque, int version_id)
|
|
{
|
|
E1000State *s = (E1000State *)opaque;
|
|
int i, j, ret;
|
|
|
|
if ((ret = pci_device_load(&s->dev, f)) < 0)
|
|
return ret;
|
|
if (version_id == 1)
|
|
qemu_get_sbe32s(f, &i); /* once some unused instance id */
|
|
qemu_get_be32(f); /* Ignored. Was mmio_base. */
|
|
qemu_get_be32s(f, &s->rxbuf_size);
|
|
qemu_get_be32s(f, &s->rxbuf_min_shift);
|
|
qemu_get_be32s(f, &s->eecd_state.val_in);
|
|
qemu_get_be16s(f, &s->eecd_state.bitnum_in);
|
|
qemu_get_be16s(f, &s->eecd_state.bitnum_out);
|
|
qemu_get_be16s(f, &s->eecd_state.reading);
|
|
qemu_get_be32s(f, &s->eecd_state.old_eecd);
|
|
qemu_get_8s(f, &s->tx.ipcss);
|
|
qemu_get_8s(f, &s->tx.ipcso);
|
|
qemu_get_be16s(f, &s->tx.ipcse);
|
|
qemu_get_8s(f, &s->tx.tucss);
|
|
qemu_get_8s(f, &s->tx.tucso);
|
|
qemu_get_be16s(f, &s->tx.tucse);
|
|
qemu_get_be32s(f, &s->tx.paylen);
|
|
qemu_get_8s(f, &s->tx.hdr_len);
|
|
qemu_get_be16s(f, &s->tx.mss);
|
|
qemu_get_be16s(f, &s->tx.size);
|
|
qemu_get_be16s(f, &s->tx.tso_frames);
|
|
qemu_get_8s(f, &s->tx.sum_needed);
|
|
qemu_get_s8s(f, &s->tx.ip);
|
|
qemu_get_s8s(f, &s->tx.tcp);
|
|
qemu_get_buffer(f, s->tx.header, sizeof s->tx.header);
|
|
qemu_get_buffer(f, s->tx.data, sizeof s->tx.data);
|
|
for (i = 0; i < 64; i++)
|
|
qemu_get_be16s(f, s->eeprom_data + i);
|
|
for (i = 0; i < 0x20; i++)
|
|
qemu_get_be16s(f, s->phy_reg + i);
|
|
for (i = 0; i < MAC_NSAVE; i++)
|
|
qemu_get_be32s(f, s->mac_reg + mac_regtosave[i]);
|
|
for (i = 0; i < MAC_NARRAYS; i++)
|
|
for (j = 0; j < mac_regarraystosave[i].size; j++)
|
|
qemu_get_be32s(f,
|
|
s->mac_reg + mac_regarraystosave[i].array0 + j);
|
|
return 0;
|
|
}
|
|
|
|
static const uint16_t e1000_eeprom_template[64] = {
|
|
0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0x0000, 0x0000, 0x0000,
|
|
0x3000, 0x1000, 0x6403, E1000_DEVID, 0x8086, E1000_DEVID, 0x8086, 0x3040,
|
|
0x0008, 0x2000, 0x7e14, 0x0048, 0x1000, 0x00d8, 0x0000, 0x2700,
|
|
0x6cc9, 0x3150, 0x0722, 0x040b, 0x0984, 0x0000, 0xc000, 0x0706,
|
|
0x1008, 0x0000, 0x0f04, 0x7fff, 0x4d01, 0xffff, 0xffff, 0xffff,
|
|
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
|
|
0x0100, 0x4000, 0x121c, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
|
|
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000,
|
|
};
|
|
|
|
static const uint16_t phy_reg_init[] = {
|
|
[PHY_CTRL] = 0x1140, [PHY_STATUS] = 0x796d, // link initially up
|
|
[PHY_ID1] = 0x141, [PHY_ID2] = PHY_ID2_INIT,
|
|
[PHY_1000T_CTRL] = 0x0e00, [M88E1000_PHY_SPEC_CTRL] = 0x360,
|
|
[M88E1000_EXT_PHY_SPEC_CTRL] = 0x0d60, [PHY_AUTONEG_ADV] = 0xde1,
|
|
[PHY_LP_ABILITY] = 0x1e0, [PHY_1000T_STATUS] = 0x3c00,
|
|
[M88E1000_PHY_SPEC_STATUS] = 0xac00,
|
|
};
|
|
|
|
static const uint32_t mac_reg_init[] = {
|
|
[PBA] = 0x00100030,
|
|
[LEDCTL] = 0x602,
|
|
[CTRL] = E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN0 |
|
|
E1000_CTRL_SPD_1000 | E1000_CTRL_SLU,
|
|
[STATUS] = 0x80000000 | E1000_STATUS_GIO_MASTER_ENABLE |
|
|
E1000_STATUS_ASDV | E1000_STATUS_MTXCKOK |
|
|
E1000_STATUS_SPEED_1000 | E1000_STATUS_FD |
|
|
E1000_STATUS_LU,
|
|
[MANC] = E1000_MANC_EN_MNG2HOST | E1000_MANC_RCV_TCO_EN |
|
|
E1000_MANC_ARP_EN | E1000_MANC_0298_EN |
|
|
E1000_MANC_RMCP_EN,
|
|
};
|
|
|
|
/* PCI interface */
|
|
|
|
static CPUWriteMemoryFunc *e1000_mmio_write[] = {
|
|
e1000_mmio_writeb, e1000_mmio_writew, e1000_mmio_writel
|
|
};
|
|
|
|
static CPUReadMemoryFunc *e1000_mmio_read[] = {
|
|
e1000_mmio_readb, e1000_mmio_readw, e1000_mmio_readl
|
|
};
|
|
|
|
static void
|
|
e1000_mmio_map(PCIDevice *pci_dev, int region_num,
|
|
uint32_t addr, uint32_t size, int type)
|
|
{
|
|
E1000State *d = (E1000State *)pci_dev;
|
|
int i;
|
|
const uint32_t excluded_regs[] = {
|
|
E1000_MDIC, E1000_ICR, E1000_ICS, E1000_IMS,
|
|
E1000_IMC, E1000_TCTL, E1000_TDT, PNPMMIO_SIZE
|
|
};
|
|
|
|
|
|
DBGOUT(MMIO, "e1000_mmio_map addr=0x%08x 0x%08x\n", addr, size);
|
|
|
|
cpu_register_physical_memory(addr, PNPMMIO_SIZE, d->mmio_index);
|
|
qemu_register_coalesced_mmio(addr, excluded_regs[0]);
|
|
|
|
for (i = 0; excluded_regs[i] != PNPMMIO_SIZE; i++)
|
|
qemu_register_coalesced_mmio(addr + excluded_regs[i] + 4,
|
|
excluded_regs[i + 1] -
|
|
excluded_regs[i] - 4);
|
|
}
|
|
|
|
static void
|
|
e1000_cleanup(VLANClientState *vc)
|
|
{
|
|
E1000State *d = vc->opaque;
|
|
|
|
unregister_savevm("e1000", d);
|
|
}
|
|
|
|
static int
|
|
pci_e1000_uninit(PCIDevice *dev)
|
|
{
|
|
E1000State *d = (E1000State *) dev;
|
|
|
|
cpu_unregister_io_memory(d->mmio_index);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void e1000_reset(void *opaque)
|
|
{
|
|
E1000State *d = opaque;
|
|
|
|
memset(d->phy_reg, 0, sizeof d->phy_reg);
|
|
memmove(d->phy_reg, phy_reg_init, sizeof phy_reg_init);
|
|
memset(d->mac_reg, 0, sizeof d->mac_reg);
|
|
memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
|
|
d->rxbuf_min_shift = 1;
|
|
memset(&d->tx, 0, sizeof d->tx);
|
|
}
|
|
|
|
static void pci_e1000_init(PCIDevice *pci_dev)
|
|
{
|
|
E1000State *d = (E1000State *)pci_dev;
|
|
uint8_t *pci_conf;
|
|
uint16_t checksum = 0;
|
|
static const char info_str[] = "e1000";
|
|
int i;
|
|
uint8_t macaddr[6];
|
|
|
|
pci_conf = d->dev.config;
|
|
|
|
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
|
|
pci_config_set_device_id(pci_conf, E1000_DEVID);
|
|
*(uint16_t *)(pci_conf+0x04) = cpu_to_le16(0x0407);
|
|
*(uint16_t *)(pci_conf+0x06) = cpu_to_le16(0x0010);
|
|
pci_conf[0x08] = 0x03;
|
|
pci_config_set_class(pci_conf, PCI_CLASS_NETWORK_ETHERNET);
|
|
pci_conf[0x0c] = 0x10;
|
|
|
|
pci_conf[0x3d] = 1; // interrupt pin 0
|
|
|
|
d->mmio_index = cpu_register_io_memory(e1000_mmio_read,
|
|
e1000_mmio_write, d);
|
|
|
|
pci_register_bar((PCIDevice *)d, 0, PNPMMIO_SIZE,
|
|
PCI_ADDRESS_SPACE_MEM, e1000_mmio_map);
|
|
|
|
pci_register_bar((PCIDevice *)d, 1, IOPORT_SIZE,
|
|
PCI_ADDRESS_SPACE_IO, ioport_map);
|
|
|
|
memmove(d->eeprom_data, e1000_eeprom_template,
|
|
sizeof e1000_eeprom_template);
|
|
qdev_get_macaddr(&d->dev.qdev, macaddr);
|
|
for (i = 0; i < 3; i++)
|
|
d->eeprom_data[i] = (macaddr[2*i+1]<<8) | macaddr[2*i];
|
|
for (i = 0; i < EEPROM_CHECKSUM_REG; i++)
|
|
checksum += d->eeprom_data[i];
|
|
checksum = (uint16_t) EEPROM_SUM - checksum;
|
|
d->eeprom_data[EEPROM_CHECKSUM_REG] = checksum;
|
|
|
|
d->vc = qdev_get_vlan_client(&d->dev.qdev,
|
|
e1000_can_receive, e1000_receive,
|
|
NULL, e1000_cleanup, d);
|
|
d->vc->link_status_changed = e1000_set_link_status;
|
|
|
|
qemu_format_nic_info_str(d->vc, macaddr);
|
|
|
|
register_savevm(info_str, -1, 2, nic_save, nic_load, d);
|
|
d->dev.unregister = pci_e1000_uninit;
|
|
qemu_register_reset(e1000_reset, d);
|
|
e1000_reset(d);
|
|
}
|
|
|
|
static PCIDeviceInfo e1000_info = {
|
|
.qdev.name = "e1000",
|
|
.qdev.size = sizeof(E1000State),
|
|
.init = pci_e1000_init,
|
|
};
|
|
|
|
static void e1000_register_devices(void)
|
|
{
|
|
pci_qdev_register(&e1000_info);
|
|
}
|
|
|
|
device_init(e1000_register_devices)
|