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-rw-r--r--qemu/hw/net/e1000.c1959
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diff --git a/qemu/hw/net/e1000.c b/qemu/hw/net/e1000.c
deleted file mode 100644
index 8e79b550e..000000000
--- a/qemu/hw/net/e1000.c
+++ /dev/null
@@ -1,1959 +0,0 @@
-/*
- * QEMU e1000 emulation
- *
- * Software developer's manual:
- * http://download.intel.com/design/network/manuals/8254x_GBe_SDM.pdf
- *
- * Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
- * Copyright (c) 2008 Qumranet
- * Based on work done by:
- * Copyright (c) 2007 Dan Aloni
- * Copyright (c) 2004 Antony T Curtis
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-
-#include "qemu/osdep.h"
-#include "hw/hw.h"
-#include "hw/pci/pci.h"
-#include "net/net.h"
-#include "net/checksum.h"
-#include "hw/loader.h"
-#include "sysemu/sysemu.h"
-#include "sysemu/dma.h"
-#include "qemu/iov.h"
-#include "qemu/range.h"
-
-#include "e1000_regs.h"
-
-static const uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-
-#define E1000_DEBUG
-
-#ifdef E1000_DEBUG
-enum {
- DEBUG_GENERAL, DEBUG_IO, DEBUG_MMIO, DEBUG_INTERRUPT,
- DEBUG_RX, DEBUG_TX, DEBUG_MDIC, DEBUG_EEPROM,
- DEBUG_UNKNOWN, DEBUG_TXSUM, DEBUG_TXERR, DEBUG_RXERR,
- DEBUG_RXFILTER, DEBUG_PHY, DEBUG_NOTYET,
-};
-#define DBGBIT(x) (1<<DEBUG_##x)
-static int debugflags = DBGBIT(TXERR) | DBGBIT(GENERAL);
-
-#define DBGOUT(what, fmt, ...) do { \
- if (debugflags & DBGBIT(what)) \
- fprintf(stderr, "e1000: " fmt, ## __VA_ARGS__); \
- } while (0)
-#else
-#define DBGOUT(what, fmt, ...) do {} while (0)
-#endif
-
-#define IOPORT_SIZE 0x40
-#define PNPMMIO_SIZE 0x20000
-#define MIN_BUF_SIZE 60 /* Min. octets in an ethernet frame sans FCS */
-
-/* this is the size past which hardware will drop packets when setting LPE=0 */
-#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
-/* this is the size past which hardware will drop packets when setting LPE=1 */
-#define MAXIMUM_ETHERNET_LPE_SIZE 16384
-
-#define MAXIMUM_ETHERNET_HDR_LEN (14+4)
-
-/*
- * HW models:
- * E1000_DEV_ID_82540EM works with Windows, Linux, and OS X <= 10.8
- * E1000_DEV_ID_82544GC_COPPER appears to work; not well tested
- * E1000_DEV_ID_82545EM_COPPER works with Linux and OS X >= 10.6
- * Others never tested
- */
-
-typedef struct E1000State_st {
- /*< private >*/
- PCIDevice parent_obj;
- /*< public >*/
-
- NICState *nic;
- NICConf conf;
- MemoryRegion mmio;
- MemoryRegion io;
-
- uint32_t mac_reg[0x8000];
- uint16_t phy_reg[0x20];
- uint16_t eeprom_data[64];
-
- uint32_t rxbuf_size;
- uint32_t rxbuf_min_shift;
- struct e1000_tx {
- unsigned char header[256];
- unsigned char vlan_header[4];
- /* Fields vlan and data must not be reordered or separated. */
- unsigned char vlan[4];
- unsigned char data[0x10000];
- uint16_t size;
- unsigned char sum_needed;
- unsigned char vlan_needed;
- uint8_t ipcss;
- uint8_t ipcso;
- uint16_t ipcse;
- uint8_t tucss;
- uint8_t tucso;
- uint16_t tucse;
- uint8_t hdr_len;
- uint16_t mss;
- uint32_t paylen;
- uint16_t tso_frames;
- char tse;
- int8_t ip;
- int8_t tcp;
- char cptse; // current packet tse bit
- } tx;
-
- struct {
- uint32_t val_in; /* shifted in from guest driver */
- uint16_t bitnum_in;
- uint16_t bitnum_out;
- uint16_t reading;
- uint32_t old_eecd;
- } eecd_state;
-
- QEMUTimer *autoneg_timer;
-
- QEMUTimer *mit_timer; /* Mitigation timer. */
- bool mit_timer_on; /* Mitigation timer is running. */
- bool mit_irq_level; /* Tracks interrupt pin level. */
- uint32_t mit_ide; /* Tracks E1000_TXD_CMD_IDE bit. */
-
-/* Compatibility flags for migration to/from qemu 1.3.0 and older */
-#define E1000_FLAG_AUTONEG_BIT 0
-#define E1000_FLAG_MIT_BIT 1
-#define E1000_FLAG_MAC_BIT 2
-#define E1000_FLAG_AUTONEG (1 << E1000_FLAG_AUTONEG_BIT)
-#define E1000_FLAG_MIT (1 << E1000_FLAG_MIT_BIT)
-#define E1000_FLAG_MAC (1 << E1000_FLAG_MAC_BIT)
- uint32_t compat_flags;
-} E1000State;
-
-#define chkflag(x) (s->compat_flags & E1000_FLAG_##x)
-
-typedef struct E1000BaseClass {
- PCIDeviceClass parent_class;
- uint16_t phy_id2;
-} E1000BaseClass;
-
-#define TYPE_E1000_BASE "e1000-base"
-
-#define E1000(obj) \
- OBJECT_CHECK(E1000State, (obj), TYPE_E1000_BASE)
-
-#define E1000_DEVICE_CLASS(klass) \
- OBJECT_CLASS_CHECK(E1000BaseClass, (klass), TYPE_E1000_BASE)
-#define E1000_DEVICE_GET_CLASS(obj) \
- OBJECT_GET_CLASS(E1000BaseClass, (obj), TYPE_E1000_BASE)
-
-#define defreg(x) x = (E1000_##x>>2)
-enum {
- defreg(CTRL), defreg(EECD), defreg(EERD), defreg(GPRC),
- defreg(GPTC), defreg(ICR), defreg(ICS), defreg(IMC),
- defreg(IMS), defreg(LEDCTL), defreg(MANC), defreg(MDIC),
- defreg(MPC), defreg(PBA), defreg(RCTL), defreg(RDBAH),
- defreg(RDBAL), defreg(RDH), defreg(RDLEN), defreg(RDT),
- defreg(STATUS), defreg(SWSM), defreg(TCTL), defreg(TDBAH),
- defreg(TDBAL), defreg(TDH), defreg(TDLEN), defreg(TDT),
- defreg(TORH), defreg(TORL), defreg(TOTH), defreg(TOTL),
- defreg(TPR), defreg(TPT), defreg(TXDCTL), defreg(WUFC),
- defreg(RA), defreg(MTA), defreg(CRCERRS), defreg(VFTA),
- defreg(VET), defreg(RDTR), defreg(RADV), defreg(TADV),
- defreg(ITR), defreg(FCRUC), defreg(TDFH), defreg(TDFT),
- defreg(TDFHS), defreg(TDFTS), defreg(TDFPC), defreg(RDFH),
- defreg(RDFT), defreg(RDFHS), defreg(RDFTS), defreg(RDFPC),
- defreg(IPAV), defreg(WUC), defreg(WUS), defreg(AIT),
- defreg(IP6AT), defreg(IP4AT), defreg(FFLT), defreg(FFMT),
- defreg(FFVT), defreg(WUPM), defreg(PBM), defreg(SCC),
- defreg(ECOL), defreg(MCC), defreg(LATECOL), defreg(COLC),
- defreg(DC), defreg(TNCRS), defreg(SEC), defreg(CEXTERR),
- defreg(RLEC), defreg(XONRXC), defreg(XONTXC), defreg(XOFFRXC),
- defreg(XOFFTXC), defreg(RFC), defreg(RJC), defreg(RNBC),
- defreg(TSCTFC), defreg(MGTPRC), defreg(MGTPDC), defreg(MGTPTC),
- defreg(RUC), defreg(ROC), defreg(GORCL), defreg(GORCH),
- defreg(GOTCL), defreg(GOTCH), defreg(BPRC), defreg(MPRC),
- defreg(TSCTC), defreg(PRC64), defreg(PRC127), defreg(PRC255),
- defreg(PRC511), defreg(PRC1023), defreg(PRC1522), defreg(PTC64),
- defreg(PTC127), defreg(PTC255), defreg(PTC511), defreg(PTC1023),
- defreg(PTC1522), defreg(MPTC), defreg(BPTC)
-};
-
-static void
-e1000_link_down(E1000State *s)
-{
- s->mac_reg[STATUS] &= ~E1000_STATUS_LU;
- s->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
- s->phy_reg[PHY_STATUS] &= ~MII_SR_AUTONEG_COMPLETE;
- s->phy_reg[PHY_LP_ABILITY] &= ~MII_LPAR_LPACK;
-}
-
-static void
-e1000_link_up(E1000State *s)
-{
- s->mac_reg[STATUS] |= E1000_STATUS_LU;
- s->phy_reg[PHY_STATUS] |= MII_SR_LINK_STATUS;
-
- /* E1000_STATUS_LU is tested by e1000_can_receive() */
- qemu_flush_queued_packets(qemu_get_queue(s->nic));
-}
-
-static bool
-have_autoneg(E1000State *s)
-{
- return chkflag(AUTONEG) && (s->phy_reg[PHY_CTRL] & MII_CR_AUTO_NEG_EN);
-}
-
-static void
-set_phy_ctrl(E1000State *s, int index, uint16_t val)
-{
- /* bits 0-5 reserved; MII_CR_[RESTART_AUTO_NEG,RESET] are self clearing */
- s->phy_reg[PHY_CTRL] = val & ~(0x3f |
- MII_CR_RESET |
- MII_CR_RESTART_AUTO_NEG);
-
- /*
- * QEMU 1.3 does not support link auto-negotiation emulation, so if we
- * migrate during auto negotiation, after migration the link will be
- * down.
- */
- if (have_autoneg(s) && (val & MII_CR_RESTART_AUTO_NEG)) {
- e1000_link_down(s);
- DBGOUT(PHY, "Start link auto negotiation\n");
- timer_mod(s->autoneg_timer,
- qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
- }
-}
-
-static void (*phyreg_writeops[])(E1000State *, int, uint16_t) = {
- [PHY_CTRL] = set_phy_ctrl,
-};
-
-enum { NPHYWRITEOPS = ARRAY_SIZE(phyreg_writeops) };
-
-enum { PHY_R = 1, PHY_W = 2, PHY_RW = PHY_R | PHY_W };
-static const char phy_regcap[0x20] = {
- [PHY_STATUS] = PHY_R, [M88E1000_EXT_PHY_SPEC_CTRL] = PHY_RW,
- [PHY_ID1] = PHY_R, [M88E1000_PHY_SPEC_CTRL] = PHY_RW,
- [PHY_CTRL] = PHY_RW, [PHY_1000T_CTRL] = PHY_RW,
- [PHY_LP_ABILITY] = PHY_R, [PHY_1000T_STATUS] = PHY_R,
- [PHY_AUTONEG_ADV] = PHY_RW, [M88E1000_RX_ERR_CNTR] = PHY_R,
- [PHY_ID2] = PHY_R, [M88E1000_PHY_SPEC_STATUS] = PHY_R,
- [PHY_AUTONEG_EXP] = PHY_R,
-};
-
-/* PHY_ID2 documented in 8254x_GBe_SDM.pdf, pp. 250 */
-static const uint16_t phy_reg_init[] = {
- [PHY_CTRL] = MII_CR_SPEED_SELECT_MSB |
- MII_CR_FULL_DUPLEX |
- MII_CR_AUTO_NEG_EN,
-
- [PHY_STATUS] = MII_SR_EXTENDED_CAPS |
- MII_SR_LINK_STATUS | /* link initially up */
- MII_SR_AUTONEG_CAPS |
- /* MII_SR_AUTONEG_COMPLETE: initially NOT completed */
- MII_SR_PREAMBLE_SUPPRESS |
- MII_SR_EXTENDED_STATUS |
- MII_SR_10T_HD_CAPS |
- MII_SR_10T_FD_CAPS |
- MII_SR_100X_HD_CAPS |
- MII_SR_100X_FD_CAPS,
-
- [PHY_ID1] = 0x141,
- /* [PHY_ID2] configured per DevId, from e1000_reset() */
- [PHY_AUTONEG_ADV] = 0xde1,
- [PHY_LP_ABILITY] = 0x1e0,
- [PHY_1000T_CTRL] = 0x0e00,
- [PHY_1000T_STATUS] = 0x3c00,
- [M88E1000_PHY_SPEC_CTRL] = 0x360,
- [M88E1000_PHY_SPEC_STATUS] = 0xac00,
- [M88E1000_EXT_PHY_SPEC_CTRL] = 0x0d60,
-};
-
-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,
-};
-
-/* Helper function, *curr == 0 means the value is not set */
-static inline void
-mit_update_delay(uint32_t *curr, uint32_t value)
-{
- if (value && (*curr == 0 || value < *curr)) {
- *curr = value;
- }
-}
-
-static void
-set_interrupt_cause(E1000State *s, int index, uint32_t val)
-{
- PCIDevice *d = PCI_DEVICE(s);
- uint32_t pending_ints;
- uint32_t mit_delay;
-
- s->mac_reg[ICR] = val;
-
- /*
- * Make sure ICR and ICS registers have the same value.
- * The spec says that the ICS register is write-only. However in practice,
- * on real hardware ICS is readable, and for reads it has the same value as
- * ICR (except that ICS does not have the clear on read behaviour of ICR).
- *
- * The VxWorks PRO/1000 driver uses this behaviour.
- */
- s->mac_reg[ICS] = val;
-
- pending_ints = (s->mac_reg[IMS] & s->mac_reg[ICR]);
- if (!s->mit_irq_level && pending_ints) {
- /*
- * Here we detect a potential raising edge. We postpone raising the
- * interrupt line if we are inside the mitigation delay window
- * (s->mit_timer_on == 1).
- * We provide a partial implementation of interrupt mitigation,
- * emulating only RADV, TADV and ITR (lower 16 bits, 1024ns units for
- * RADV and TADV, 256ns units for ITR). RDTR is only used to enable
- * RADV; relative timers based on TIDV and RDTR are not implemented.
- */
- if (s->mit_timer_on) {
- return;
- }
- if (chkflag(MIT)) {
- /* Compute the next mitigation delay according to pending
- * interrupts and the current values of RADV (provided
- * RDTR!=0), TADV and ITR.
- * Then rearm the timer.
- */
- mit_delay = 0;
- if (s->mit_ide &&
- (pending_ints & (E1000_ICR_TXQE | E1000_ICR_TXDW))) {
- mit_update_delay(&mit_delay, s->mac_reg[TADV] * 4);
- }
- if (s->mac_reg[RDTR] && (pending_ints & E1000_ICS_RXT0)) {
- mit_update_delay(&mit_delay, s->mac_reg[RADV] * 4);
- }
- mit_update_delay(&mit_delay, s->mac_reg[ITR]);
-
- /*
- * According to e1000 SPEC, the Ethernet controller guarantees
- * a maximum observable interrupt rate of 7813 interrupts/sec.
- * Thus if mit_delay < 500 then the delay should be set to the
- * minimum delay possible which is 500.
- */
- mit_delay = (mit_delay < 500) ? 500 : mit_delay;
-
- if (mit_delay) {
- s->mit_timer_on = 1;
- timer_mod(s->mit_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
- mit_delay * 256);
- }
- s->mit_ide = 0;
- }
- }
-
- s->mit_irq_level = (pending_ints != 0);
- pci_set_irq(d, s->mit_irq_level);
-}
-
-static void
-e1000_mit_timer(void *opaque)
-{
- E1000State *s = opaque;
-
- s->mit_timer_on = 0;
- /* Call set_interrupt_cause to update the irq level (if necessary). */
- set_interrupt_cause(s, 0, s->mac_reg[ICR]);
-}
-
-static void
-set_ics(E1000State *s, int index, uint32_t val)
-{
- DBGOUT(INTERRUPT, "set_ics %x, ICR %x, IMR %x\n", val, s->mac_reg[ICR],
- s->mac_reg[IMS]);
- set_interrupt_cause(s, 0, val | s->mac_reg[ICR]);
-}
-
-static void
-e1000_autoneg_timer(void *opaque)
-{
- E1000State *s = opaque;
- if (!qemu_get_queue(s->nic)->link_down) {
- e1000_link_up(s);
- s->phy_reg[PHY_LP_ABILITY] |= MII_LPAR_LPACK;
- s->phy_reg[PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE;
- DBGOUT(PHY, "Auto negotiation is completed\n");
- set_ics(s, 0, E1000_ICS_LSC); /* signal link status change to guest */
- }
-}
-
-static int
-rxbufsize(uint32_t v)
-{
- v &= E1000_RCTL_BSEX | E1000_RCTL_SZ_16384 | E1000_RCTL_SZ_8192 |
- E1000_RCTL_SZ_4096 | E1000_RCTL_SZ_2048 | E1000_RCTL_SZ_1024 |
- E1000_RCTL_SZ_512 | E1000_RCTL_SZ_256;
- switch (v) {
- case E1000_RCTL_BSEX | E1000_RCTL_SZ_16384:
- return 16384;
- case E1000_RCTL_BSEX | E1000_RCTL_SZ_8192:
- return 8192;
- case E1000_RCTL_BSEX | E1000_RCTL_SZ_4096:
- return 4096;
- case E1000_RCTL_SZ_1024:
- return 1024;
- case E1000_RCTL_SZ_512:
- return 512;
- case E1000_RCTL_SZ_256:
- return 256;
- }
- return 2048;
-}
-
-static void e1000_reset(void *opaque)
-{
- E1000State *d = opaque;
- E1000BaseClass *edc = E1000_DEVICE_GET_CLASS(d);
- uint8_t *macaddr = d->conf.macaddr.a;
- int i;
-
- timer_del(d->autoneg_timer);
- timer_del(d->mit_timer);
- d->mit_timer_on = 0;
- d->mit_irq_level = 0;
- d->mit_ide = 0;
- memset(d->phy_reg, 0, sizeof d->phy_reg);
- memmove(d->phy_reg, phy_reg_init, sizeof phy_reg_init);
- d->phy_reg[PHY_ID2] = edc->phy_id2;
- 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);
-
- if (qemu_get_queue(d->nic)->link_down) {
- e1000_link_down(d);
- }
-
- /* Some guests expect pre-initialized RAH/RAL (AddrValid flag + MACaddr) */
- d->mac_reg[RA] = 0;
- d->mac_reg[RA + 1] = E1000_RAH_AV;
- for (i = 0; i < 4; i++) {
- d->mac_reg[RA] |= macaddr[i] << (8 * i);
- d->mac_reg[RA + 1] |= (i < 2) ? macaddr[i + 4] << (8 * i) : 0;
- }
- qemu_format_nic_info_str(qemu_get_queue(d->nic), macaddr);
-}
-
-static void
-set_ctrl(E1000State *s, int index, uint32_t val)
-{
- /* RST is self clearing */
- s->mac_reg[CTRL] = val & ~E1000_CTRL_RST;
-}
-
-static void
-set_rx_control(E1000State *s, int index, uint32_t val)
-{
- s->mac_reg[RCTL] = val;
- s->rxbuf_size = rxbufsize(val);
- s->rxbuf_min_shift = ((val / E1000_RCTL_RDMTS_QUAT) & 3) + 1;
- DBGOUT(RX, "RCTL: %d, mac_reg[RCTL] = 0x%x\n", s->mac_reg[RDT],
- s->mac_reg[RCTL]);
- qemu_flush_queued_packets(qemu_get_queue(s->nic));
-}
-
-static void
-set_mdic(E1000State *s, int index, uint32_t val)
-{
- uint32_t data = val & E1000_MDIC_DATA_MASK;
- uint32_t addr = ((val & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT);
-
- if ((val & E1000_MDIC_PHY_MASK) >> E1000_MDIC_PHY_SHIFT != 1) // phy #
- val = s->mac_reg[MDIC] | E1000_MDIC_ERROR;
- else if (val & E1000_MDIC_OP_READ) {
- DBGOUT(MDIC, "MDIC read reg 0x%x\n", addr);
- if (!(phy_regcap[addr] & PHY_R)) {
- DBGOUT(MDIC, "MDIC read reg %x unhandled\n", addr);
- val |= E1000_MDIC_ERROR;
- } else
- val = (val ^ data) | s->phy_reg[addr];
- } else if (val & E1000_MDIC_OP_WRITE) {
- DBGOUT(MDIC, "MDIC write reg 0x%x, value 0x%x\n", addr, data);
- if (!(phy_regcap[addr] & PHY_W)) {
- DBGOUT(MDIC, "MDIC write reg %x unhandled\n", addr);
- val |= E1000_MDIC_ERROR;
- } else {
- if (addr < NPHYWRITEOPS && phyreg_writeops[addr]) {
- phyreg_writeops[addr](s, index, data);
- } else {
- s->phy_reg[addr] = data;
- }
- }
- }
- s->mac_reg[MDIC] = val | E1000_MDIC_READY;
-
- if (val & E1000_MDIC_INT_EN) {
- set_ics(s, 0, E1000_ICR_MDAC);
- }
-}
-
-static uint32_t
-get_eecd(E1000State *s, int index)
-{
- uint32_t ret = E1000_EECD_PRES|E1000_EECD_GNT | s->eecd_state.old_eecd;
-
- DBGOUT(EEPROM, "reading eeprom bit %d (reading %d)\n",
- s->eecd_state.bitnum_out, s->eecd_state.reading);
- if (!s->eecd_state.reading ||
- ((s->eeprom_data[(s->eecd_state.bitnum_out >> 4) & 0x3f] >>
- ((s->eecd_state.bitnum_out & 0xf) ^ 0xf))) & 1)
- ret |= E1000_EECD_DO;
- return ret;
-}
-
-static void
-set_eecd(E1000State *s, int index, uint32_t val)
-{
- uint32_t oldval = s->eecd_state.old_eecd;
-
- s->eecd_state.old_eecd = val & (E1000_EECD_SK | E1000_EECD_CS |
- E1000_EECD_DI|E1000_EECD_FWE_MASK|E1000_EECD_REQ);
- if (!(E1000_EECD_CS & val)) { /* CS inactive; nothing to do */
- return;
- }
- if (E1000_EECD_CS & (val ^ oldval)) { /* CS rise edge; reset state */
- s->eecd_state.val_in = 0;
- s->eecd_state.bitnum_in = 0;
- s->eecd_state.bitnum_out = 0;
- s->eecd_state.reading = 0;
- }
- if (!(E1000_EECD_SK & (val ^ oldval))) { /* no clock edge */
- return;
- }
- if (!(E1000_EECD_SK & val)) { /* falling edge */
- s->eecd_state.bitnum_out++;
- return;
- }
- s->eecd_state.val_in <<= 1;
- if (val & E1000_EECD_DI)
- s->eecd_state.val_in |= 1;
- if (++s->eecd_state.bitnum_in == 9 && !s->eecd_state.reading) {
- s->eecd_state.bitnum_out = ((s->eecd_state.val_in & 0x3f)<<4)-1;
- s->eecd_state.reading = (((s->eecd_state.val_in >> 6) & 7) ==
- EEPROM_READ_OPCODE_MICROWIRE);
- }
- DBGOUT(EEPROM, "eeprom bitnum in %d out %d, reading %d\n",
- s->eecd_state.bitnum_in, s->eecd_state.bitnum_out,
- s->eecd_state.reading);
-}
-
-static uint32_t
-flash_eerd_read(E1000State *s, int x)
-{
- unsigned int index, r = s->mac_reg[EERD] & ~E1000_EEPROM_RW_REG_START;
-
- if ((s->mac_reg[EERD] & E1000_EEPROM_RW_REG_START) == 0)
- return (s->mac_reg[EERD]);
-
- if ((index = r >> E1000_EEPROM_RW_ADDR_SHIFT) > EEPROM_CHECKSUM_REG)
- return (E1000_EEPROM_RW_REG_DONE | r);
-
- return ((s->eeprom_data[index] << E1000_EEPROM_RW_REG_DATA) |
- E1000_EEPROM_RW_REG_DONE | r);
-}
-
-static void
-putsum(uint8_t *data, uint32_t n, uint32_t sloc, uint32_t css, uint32_t cse)
-{
- uint32_t sum;
-
- if (cse && cse < n)
- n = cse + 1;
- if (sloc < n-1) {
- sum = net_checksum_add(n-css, data+css);
- stw_be_p(data + sloc, net_checksum_finish(sum));
- }
-}
-
-static inline void
-inc_reg_if_not_full(E1000State *s, int index)
-{
- if (s->mac_reg[index] != 0xffffffff) {
- s->mac_reg[index]++;
- }
-}
-
-static inline void
-inc_tx_bcast_or_mcast_count(E1000State *s, const unsigned char *arr)
-{
- if (!memcmp(arr, bcast, sizeof bcast)) {
- inc_reg_if_not_full(s, BPTC);
- } else if (arr[0] & 1) {
- inc_reg_if_not_full(s, MPTC);
- }
-}
-
-static void
-grow_8reg_if_not_full(E1000State *s, int index, int size)
-{
- uint64_t sum = s->mac_reg[index] | (uint64_t)s->mac_reg[index+1] << 32;
-
- if (sum + size < sum) {
- sum = ~0ULL;
- } else {
- sum += size;
- }
- s->mac_reg[index] = sum;
- s->mac_reg[index+1] = sum >> 32;
-}
-
-static void
-increase_size_stats(E1000State *s, const int *size_regs, int size)
-{
- if (size > 1023) {
- inc_reg_if_not_full(s, size_regs[5]);
- } else if (size > 511) {
- inc_reg_if_not_full(s, size_regs[4]);
- } else if (size > 255) {
- inc_reg_if_not_full(s, size_regs[3]);
- } else if (size > 127) {
- inc_reg_if_not_full(s, size_regs[2]);
- } else if (size > 64) {
- inc_reg_if_not_full(s, size_regs[1]);
- } else if (size == 64) {
- inc_reg_if_not_full(s, size_regs[0]);
- }
-}
-
-static inline int
-vlan_enabled(E1000State *s)
-{
- return ((s->mac_reg[CTRL] & E1000_CTRL_VME) != 0);
-}
-
-static inline int
-vlan_rx_filter_enabled(E1000State *s)
-{
- return ((s->mac_reg[RCTL] & E1000_RCTL_VFE) != 0);
-}
-
-static inline int
-is_vlan_packet(E1000State *s, const uint8_t *buf)
-{
- return (be16_to_cpup((uint16_t *)(buf + 12)) ==
- le16_to_cpu(s->mac_reg[VET]));
-}
-
-static inline int
-is_vlan_txd(uint32_t txd_lower)
-{
- return ((txd_lower & E1000_TXD_CMD_VLE) != 0);
-}
-
-/* FCS aka Ethernet CRC-32. We don't get it from backends and can't
- * fill it in, just pad descriptor length by 4 bytes unless guest
- * told us to strip it off the packet. */
-static inline int
-fcs_len(E1000State *s)
-{
- return (s->mac_reg[RCTL] & E1000_RCTL_SECRC) ? 0 : 4;
-}
-
-static void
-e1000_send_packet(E1000State *s, const uint8_t *buf, int size)
-{
- static const int PTCregs[6] = { PTC64, PTC127, PTC255, PTC511,
- PTC1023, PTC1522 };
-
- NetClientState *nc = qemu_get_queue(s->nic);
- if (s->phy_reg[PHY_CTRL] & MII_CR_LOOPBACK) {
- nc->info->receive(nc, buf, size);
- } else {
- qemu_send_packet(nc, buf, size);
- }
- inc_tx_bcast_or_mcast_count(s, buf);
- increase_size_stats(s, PTCregs, size);
-}
-
-static void
-xmit_seg(E1000State *s)
-{
- uint16_t len, *sp;
- unsigned int frames = s->tx.tso_frames, css, sofar;
- struct e1000_tx *tp = &s->tx;
-
- if (tp->tse && tp->cptse) {
- css = tp->ipcss;
- DBGOUT(TXSUM, "frames %d size %d ipcss %d\n",
- frames, tp->size, css);
- if (tp->ip) { /* IPv4 */
- stw_be_p(tp->data+css+2, tp->size - css);
- stw_be_p(tp->data+css+4,
- be16_to_cpup((uint16_t *)(tp->data+css+4))+frames);
- } else { /* IPv6 */
- stw_be_p(tp->data+css+4, tp->size - css);
- }
- css = tp->tucss;
- len = tp->size - css;
- DBGOUT(TXSUM, "tcp %d tucss %d len %d\n", tp->tcp, css, len);
- if (tp->tcp) {
- sofar = frames * tp->mss;
- stl_be_p(tp->data+css+4, ldl_be_p(tp->data+css+4)+sofar); /* seq */
- if (tp->paylen - sofar > tp->mss) {
- tp->data[css + 13] &= ~9; /* PSH, FIN */
- } else if (frames) {
- inc_reg_if_not_full(s, TSCTC);
- }
- } else /* UDP */
- stw_be_p(tp->data+css+4, len);
- if (tp->sum_needed & E1000_TXD_POPTS_TXSM) {
- unsigned int phsum;
- // add pseudo-header length before checksum calculation
- sp = (uint16_t *)(tp->data + tp->tucso);
- phsum = be16_to_cpup(sp) + len;
- phsum = (phsum >> 16) + (phsum & 0xffff);
- stw_be_p(sp, phsum);
- }
- tp->tso_frames++;
- }
-
- if (tp->sum_needed & E1000_TXD_POPTS_TXSM)
- putsum(tp->data, tp->size, tp->tucso, tp->tucss, tp->tucse);
- if (tp->sum_needed & E1000_TXD_POPTS_IXSM)
- putsum(tp->data, tp->size, tp->ipcso, tp->ipcss, tp->ipcse);
- if (tp->vlan_needed) {
- memmove(tp->vlan, tp->data, 4);
- memmove(tp->data, tp->data + 4, 8);
- memcpy(tp->data + 8, tp->vlan_header, 4);
- e1000_send_packet(s, tp->vlan, tp->size + 4);
- } else {
- e1000_send_packet(s, tp->data, tp->size);
- }
-
- inc_reg_if_not_full(s, TPT);
- grow_8reg_if_not_full(s, TOTL, s->tx.size);
- s->mac_reg[GPTC] = s->mac_reg[TPT];
- s->mac_reg[GOTCL] = s->mac_reg[TOTL];
- s->mac_reg[GOTCH] = s->mac_reg[TOTH];
-}
-
-static void
-process_tx_desc(E1000State *s, struct e1000_tx_desc *dp)
-{
- PCIDevice *d = PCI_DEVICE(s);
- uint32_t txd_lower = le32_to_cpu(dp->lower.data);
- uint32_t dtype = txd_lower & (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D);
- unsigned int split_size = txd_lower & 0xffff, bytes, sz, op;
- unsigned int msh = 0xfffff;
- uint64_t addr;
- struct e1000_context_desc *xp = (struct e1000_context_desc *)dp;
- struct e1000_tx *tp = &s->tx;
-
- s->mit_ide |= (txd_lower & E1000_TXD_CMD_IDE);
- if (dtype == E1000_TXD_CMD_DEXT) { /* context descriptor */
- op = le32_to_cpu(xp->cmd_and_length);
- tp->ipcss = xp->lower_setup.ip_fields.ipcss;
- tp->ipcso = xp->lower_setup.ip_fields.ipcso;
- tp->ipcse = le16_to_cpu(xp->lower_setup.ip_fields.ipcse);
- tp->tucss = xp->upper_setup.tcp_fields.tucss;
- tp->tucso = xp->upper_setup.tcp_fields.tucso;
- tp->tucse = le16_to_cpu(xp->upper_setup.tcp_fields.tucse);
- tp->paylen = op & 0xfffff;
- 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
- if (tp->size == 0) {
- 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;
- stw_be_p(tp->vlan_header,
- le16_to_cpu(s->mac_reg[VET]));
- stw_be_p(tp->vlan_header + 2,
- le16_to_cpu(dp->upper.fields.special));
- }
-
- addr = le64_to_cpu(dp->buffer_addr);
- if (tp->tse && tp->cptse) {
- msh = tp->hdr_len + tp->mss;
- do {
- bytes = split_size;
- if (tp->size + bytes > msh)
- bytes = msh - tp->size;
-
- bytes = MIN(sizeof(tp->data) - tp->size, bytes);
- pci_dma_read(d, addr, tp->data + tp->size, bytes);
- sz = tp->size + bytes;
- if (sz >= tp->hdr_len && tp->size < tp->hdr_len) {
- memmove(tp->header, tp->data, tp->hdr_len);
- }
- tp->size = sz;
- addr += bytes;
- if (sz == msh) {
- xmit_seg(s);
- memmove(tp->data, tp->header, tp->hdr_len);
- tp->size = tp->hdr_len;
- }
- split_size -= bytes;
- } while (bytes && split_size);
- } else if (!tp->tse && tp->cptse) {
- // context descriptor TSE is not set, while data descriptor TSE is set
- DBGOUT(TXERR, "TCP segmentation error\n");
- } else {
- split_size = MIN(sizeof(tp->data) - tp->size, split_size);
- pci_dma_read(d, 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 < tp->hdr_len)) {
- 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(E1000State *s, dma_addr_t base, struct e1000_tx_desc *dp)
-{
- PCIDevice *d = PCI_DEVICE(s);
- 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);
- pci_dma_write(d, base + ((char *)&dp->upper - (char *)dp),
- &dp->upper, sizeof(dp->upper));
- return E1000_ICR_TXDW;
-}
-
-static uint64_t tx_desc_base(E1000State *s)
-{
- uint64_t bah = s->mac_reg[TDBAH];
- uint64_t bal = s->mac_reg[TDBAL] & ~0xf;
-
- return (bah << 32) + bal;
-}
-
-static void
-start_xmit(E1000State *s)
-{
- PCIDevice *d = PCI_DEVICE(s);
- dma_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 = tx_desc_base(s) +
- sizeof(struct e1000_tx_desc) * s->mac_reg[TDH];
- pci_dma_read(d, base, &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(s, 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 ||
- tdh_start >= s->mac_reg[TDLEN] / sizeof(desc)) {
- 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 const int mta_shift[] = {4, 3, 2, 0};
- uint32_t f, rctl = s->mac_reg[RCTL], ra[2], *rp;
- int isbcast = !memcmp(buf, bcast, sizeof bcast), ismcast = (buf[0] & 1);
-
- 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 (!isbcast && !ismcast && (rctl & E1000_RCTL_UPE)) { /* promiscuous ucast */
- return 1;
- }
-
- if (ismcast && (rctl & E1000_RCTL_MPE)) { /* promiscuous mcast */
- inc_reg_if_not_full(s, MPRC);
- return 1;
- }
-
- if (isbcast && (rctl & E1000_RCTL_BAM)) { /* broadcast enabled */
- inc_reg_if_not_full(s, BPRC);
- 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))) {
- inc_reg_if_not_full(s, MPRC);
- 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(NetClientState *nc)
-{
- E1000State *s = qemu_get_nic_opaque(nc);
- uint32_t old_status = s->mac_reg[STATUS];
-
- if (nc->link_down) {
- e1000_link_down(s);
- } else {
- if (have_autoneg(s) &&
- !(s->phy_reg[PHY_STATUS] & MII_SR_AUTONEG_COMPLETE)) {
- /* emulate auto-negotiation if supported */
- timer_mod(s->autoneg_timer,
- qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
- } else {
- e1000_link_up(s);
- }
- }
-
- if (s->mac_reg[STATUS] != old_status)
- set_ics(s, 0, E1000_ICR_LSC);
-}
-
-static bool e1000_has_rxbufs(E1000State *s, size_t total_size)
-{
- int bufs;
- /* Fast-path short packets */
- if (total_size <= s->rxbuf_size) {
- return s->mac_reg[RDH] != s->mac_reg[RDT];
- }
- if (s->mac_reg[RDH] < s->mac_reg[RDT]) {
- bufs = s->mac_reg[RDT] - s->mac_reg[RDH];
- } else if (s->mac_reg[RDH] > s->mac_reg[RDT]) {
- bufs = s->mac_reg[RDLEN] / sizeof(struct e1000_rx_desc) +
- s->mac_reg[RDT] - s->mac_reg[RDH];
- } else {
- return false;
- }
- return total_size <= bufs * s->rxbuf_size;
-}
-
-static int
-e1000_can_receive(NetClientState *nc)
-{
- E1000State *s = qemu_get_nic_opaque(nc);
-
- return (s->mac_reg[STATUS] & E1000_STATUS_LU) &&
- (s->mac_reg[RCTL] & E1000_RCTL_EN) &&
- (s->parent_obj.config[PCI_COMMAND] & PCI_COMMAND_MASTER) &&
- e1000_has_rxbufs(s, 1);
-}
-
-static uint64_t rx_desc_base(E1000State *s)
-{
- uint64_t bah = s->mac_reg[RDBAH];
- uint64_t bal = s->mac_reg[RDBAL] & ~0xf;
-
- return (bah << 32) + bal;
-}
-
-static ssize_t
-e1000_receive_iov(NetClientState *nc, const struct iovec *iov, int iovcnt)
-{
- E1000State *s = qemu_get_nic_opaque(nc);
- PCIDevice *d = PCI_DEVICE(s);
- struct e1000_rx_desc desc;
- dma_addr_t base;
- unsigned int n, rdt;
- uint32_t rdh_start;
- uint16_t vlan_special = 0;
- uint8_t vlan_status = 0;
- uint8_t min_buf[MIN_BUF_SIZE];
- struct iovec min_iov;
- uint8_t *filter_buf = iov->iov_base;
- size_t size = iov_size(iov, iovcnt);
- size_t iov_ofs = 0;
- size_t desc_offset;
- size_t desc_size;
- size_t total_size;
- static const int PRCregs[6] = { PRC64, PRC127, PRC255, PRC511,
- PRC1023, PRC1522 };
-
- if (!(s->mac_reg[STATUS] & E1000_STATUS_LU)) {
- return -1;
- }
-
- if (!(s->mac_reg[RCTL] & E1000_RCTL_EN)) {
- return -1;
- }
-
- /* Pad to minimum Ethernet frame length */
- if (size < sizeof(min_buf)) {
- iov_to_buf(iov, iovcnt, 0, min_buf, size);
- memset(&min_buf[size], 0, sizeof(min_buf) - size);
- inc_reg_if_not_full(s, RUC);
- min_iov.iov_base = filter_buf = min_buf;
- min_iov.iov_len = size = sizeof(min_buf);
- iovcnt = 1;
- iov = &min_iov;
- } else if (iov->iov_len < MAXIMUM_ETHERNET_HDR_LEN) {
- /* This is very unlikely, but may happen. */
- iov_to_buf(iov, iovcnt, 0, min_buf, MAXIMUM_ETHERNET_HDR_LEN);
- filter_buf = min_buf;
- }
-
- /* Discard oversized packets if !LPE and !SBP. */
- if ((size > MAXIMUM_ETHERNET_LPE_SIZE ||
- (size > MAXIMUM_ETHERNET_VLAN_SIZE
- && !(s->mac_reg[RCTL] & E1000_RCTL_LPE)))
- && !(s->mac_reg[RCTL] & E1000_RCTL_SBP)) {
- inc_reg_if_not_full(s, ROC);
- return size;
- }
-
- if (!receive_filter(s, filter_buf, size)) {
- return size;
- }
-
- if (vlan_enabled(s) && is_vlan_packet(s, filter_buf)) {
- vlan_special = cpu_to_le16(be16_to_cpup((uint16_t *)(filter_buf
- + 14)));
- iov_ofs = 4;
- if (filter_buf == iov->iov_base) {
- memmove(filter_buf + 4, filter_buf, 12);
- } else {
- iov_from_buf(iov, iovcnt, 4, filter_buf, 12);
- while (iov->iov_len <= iov_ofs) {
- iov_ofs -= iov->iov_len;
- iov++;
- }
- }
- vlan_status = E1000_RXD_STAT_VP;
- size -= 4;
- }
-
- rdh_start = s->mac_reg[RDH];
- desc_offset = 0;
- total_size = size + fcs_len(s);
- if (!e1000_has_rxbufs(s, total_size)) {
- set_ics(s, 0, E1000_ICS_RXO);
- return -1;
- }
- do {
- desc_size = total_size - desc_offset;
- if (desc_size > s->rxbuf_size) {
- desc_size = s->rxbuf_size;
- }
- base = rx_desc_base(s) + sizeof(desc) * s->mac_reg[RDH];
- pci_dma_read(d, base, &desc, sizeof(desc));
- desc.special = vlan_special;
- desc.status |= (vlan_status | E1000_RXD_STAT_DD);
- if (desc.buffer_addr) {
- if (desc_offset < size) {
- size_t iov_copy;
- hwaddr ba = le64_to_cpu(desc.buffer_addr);
- size_t copy_size = size - desc_offset;
- if (copy_size > s->rxbuf_size) {
- copy_size = s->rxbuf_size;
- }
- do {
- iov_copy = MIN(copy_size, iov->iov_len - iov_ofs);
- pci_dma_write(d, ba, iov->iov_base + iov_ofs, iov_copy);
- copy_size -= iov_copy;
- ba += iov_copy;
- iov_ofs += iov_copy;
- if (iov_ofs == iov->iov_len) {
- iov++;
- iov_ofs = 0;
- }
- } while (copy_size);
- }
- desc_offset += desc_size;
- desc.length = cpu_to_le16(desc_size);
- if (desc_offset >= total_size) {
- desc.status |= E1000_RXD_STAT_EOP | E1000_RXD_STAT_IXSM;
- } else {
- /* Guest zeroing out status is not a hardware requirement.
- Clear EOP in case guest didn't do it. */
- desc.status &= ~E1000_RXD_STAT_EOP;
- }
- } else { // as per intel docs; skip descriptors with null buf addr
- DBGOUT(RX, "Null RX descriptor!!\n");
- }
- pci_dma_write(d, base, &desc, sizeof(desc));
-
- if (++s->mac_reg[RDH] * sizeof(desc) >= s->mac_reg[RDLEN])
- s->mac_reg[RDH] = 0;
- /* see comment in start_xmit; same here */
- if (s->mac_reg[RDH] == rdh_start ||
- rdh_start >= s->mac_reg[RDLEN] / sizeof(desc)) {
- 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_offset < total_size);
-
- increase_size_stats(s, PRCregs, total_size);
- inc_reg_if_not_full(s, TPR);
- s->mac_reg[GPRC] = s->mac_reg[TPR];
- /* TOR - Total Octets Received:
- * This register includes bytes received in a packet from the <Destination
- * Address> field through the <CRC> field, inclusively.
- * Always include FCS length (4) in size.
- */
- grow_8reg_if_not_full(s, TORL, size+4);
- s->mac_reg[GORCL] = s->mac_reg[TORL];
- s->mac_reg[GORCH] = 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 ssize_t
-e1000_receive(NetClientState *nc, const uint8_t *buf, size_t size)
-{
- const struct iovec iov = {
- .iov_base = (uint8_t *)buf,
- .iov_len = size
- };
-
- return e1000_receive_iov(nc, &iov, 1);
-}
-
-static uint32_t
-mac_readreg(E1000State *s, int index)
-{
- return s->mac_reg[index];
-}
-
-static uint32_t
-mac_low4_read(E1000State *s, int index)
-{
- return s->mac_reg[index] & 0xf;
-}
-
-static uint32_t
-mac_low11_read(E1000State *s, int index)
-{
- return s->mac_reg[index] & 0x7ff;
-}
-
-static uint32_t
-mac_low13_read(E1000State *s, int index)
-{
- return s->mac_reg[index] & 0x1fff;
-}
-
-static uint32_t
-mac_low16_read(E1000State *s, int index)
-{
- return s->mac_reg[index] & 0xffff;
-}
-
-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)
-{
- uint32_t macaddr[2];
-
- s->mac_reg[index] = val;
-
- if (index == RA + 1) {
- macaddr[0] = cpu_to_le32(s->mac_reg[RA]);
- macaddr[1] = cpu_to_le32(s->mac_reg[RA + 1]);
- qemu_format_nic_info_str(qemu_get_queue(s->nic), (uint8_t *)macaddr);
- }
-}
-
-static void
-set_rdt(E1000State *s, int index, uint32_t val)
-{
- s->mac_reg[index] = val & 0xffff;
- if (e1000_has_rxbufs(s, 1)) {
- qemu_flush_queued_packets(qemu_get_queue(s->nic));
- }
-}
-
-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),
- getreg(TDBAL), getreg(TDBAH), getreg(RDBAH), getreg(RDBAL),
- getreg(TDLEN), getreg(RDLEN), getreg(RDTR), getreg(RADV),
- getreg(TADV), getreg(ITR), getreg(FCRUC), getreg(IPAV),
- getreg(WUC), getreg(WUS), getreg(SCC), getreg(ECOL),
- getreg(MCC), getreg(LATECOL), getreg(COLC), getreg(DC),
- getreg(TNCRS), getreg(SEC), getreg(CEXTERR), getreg(RLEC),
- getreg(XONRXC), getreg(XONTXC), getreg(XOFFRXC), getreg(XOFFTXC),
- getreg(RFC), getreg(RJC), getreg(RNBC), getreg(TSCTFC),
- getreg(MGTPRC), getreg(MGTPDC), getreg(MGTPTC), getreg(GORCL),
- getreg(GOTCL),
-
- [TOTH] = mac_read_clr8, [TORH] = mac_read_clr8,
- [GOTCH] = mac_read_clr8, [GORCH] = mac_read_clr8,
- [PRC64] = mac_read_clr4, [PRC127] = mac_read_clr4,
- [PRC255] = mac_read_clr4, [PRC511] = mac_read_clr4,
- [PRC1023] = mac_read_clr4, [PRC1522] = mac_read_clr4,
- [PTC64] = mac_read_clr4, [PTC127] = mac_read_clr4,
- [PTC255] = mac_read_clr4, [PTC511] = mac_read_clr4,
- [PTC1023] = mac_read_clr4, [PTC1522] = mac_read_clr4,
- [GPRC] = mac_read_clr4, [GPTC] = mac_read_clr4,
- [TPT] = mac_read_clr4, [TPR] = mac_read_clr4,
- [RUC] = mac_read_clr4, [ROC] = mac_read_clr4,
- [BPRC] = mac_read_clr4, [MPRC] = mac_read_clr4,
- [TSCTC] = mac_read_clr4, [BPTC] = mac_read_clr4,
- [MPTC] = mac_read_clr4,
- [ICR] = mac_icr_read, [EECD] = get_eecd,
- [EERD] = flash_eerd_read,
- [RDFH] = mac_low13_read, [RDFT] = mac_low13_read,
- [RDFHS] = mac_low13_read, [RDFTS] = mac_low13_read,
- [RDFPC] = mac_low13_read,
- [TDFH] = mac_low11_read, [TDFT] = mac_low11_read,
- [TDFHS] = mac_low13_read, [TDFTS] = mac_low13_read,
- [TDFPC] = mac_low13_read,
- [AIT] = mac_low16_read,
-
- [CRCERRS ... MPC] = &mac_readreg,
- [IP6AT ... IP6AT+3] = &mac_readreg, [IP4AT ... IP4AT+6] = &mac_readreg,
- [FFLT ... FFLT+6] = &mac_low11_read,
- [RA ... RA+31] = &mac_readreg,
- [WUPM ... WUPM+31] = &mac_readreg,
- [MTA ... MTA+127] = &mac_readreg,
- [VFTA ... VFTA+127] = &mac_readreg,
- [FFMT ... FFMT+254] = &mac_low4_read,
- [FFVT ... FFVT+254] = &mac_readreg,
- [PBM ... PBM+16383] = &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), putreg(FCRUC),
- putreg(TDFH), putreg(TDFT), putreg(TDFHS), putreg(TDFTS),
- putreg(TDFPC), putreg(RDFH), putreg(RDFT), putreg(RDFHS),
- putreg(RDFTS), putreg(RDFPC), putreg(IPAV), putreg(WUC),
- putreg(WUS), putreg(AIT),
-
- [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,
- [RDTR] = set_16bit, [RADV] = set_16bit, [TADV] = set_16bit,
- [ITR] = set_16bit,
-
- [IP6AT ... IP6AT+3] = &mac_writereg, [IP4AT ... IP4AT+6] = &mac_writereg,
- [FFLT ... FFLT+6] = &mac_writereg,
- [RA ... RA+31] = &mac_writereg,
- [WUPM ... WUPM+31] = &mac_writereg,
- [MTA ... MTA+127] = &mac_writereg,
- [VFTA ... VFTA+127] = &mac_writereg,
- [FFMT ... FFMT+254] = &mac_writereg, [FFVT ... FFVT+254] = &mac_writereg,
- [PBM ... PBM+16383] = &mac_writereg,
-};
-
-enum { NWRITEOPS = ARRAY_SIZE(macreg_writeops) };
-
-enum { MAC_ACCESS_PARTIAL = 1, MAC_ACCESS_FLAG_NEEDED = 2 };
-
-#define markflag(x) ((E1000_FLAG_##x << 2) | MAC_ACCESS_FLAG_NEEDED)
-/* In the array below the meaning of the bits is: [f|f|f|f|f|f|n|p]
- * f - flag bits (up to 6 possible flags)
- * n - flag needed
- * p - partially implenented */
-static const uint8_t mac_reg_access[0x8000] = {
- [RDTR] = markflag(MIT), [TADV] = markflag(MIT),
- [RADV] = markflag(MIT), [ITR] = markflag(MIT),
-
- [IPAV] = markflag(MAC), [WUC] = markflag(MAC),
- [IP6AT] = markflag(MAC), [IP4AT] = markflag(MAC),
- [FFVT] = markflag(MAC), [WUPM] = markflag(MAC),
- [ECOL] = markflag(MAC), [MCC] = markflag(MAC),
- [DC] = markflag(MAC), [TNCRS] = markflag(MAC),
- [RLEC] = markflag(MAC), [XONRXC] = markflag(MAC),
- [XOFFTXC] = markflag(MAC), [RFC] = markflag(MAC),
- [TSCTFC] = markflag(MAC), [MGTPRC] = markflag(MAC),
- [WUS] = markflag(MAC), [AIT] = markflag(MAC),
- [FFLT] = markflag(MAC), [FFMT] = markflag(MAC),
- [SCC] = markflag(MAC), [FCRUC] = markflag(MAC),
- [LATECOL] = markflag(MAC), [COLC] = markflag(MAC),
- [SEC] = markflag(MAC), [CEXTERR] = markflag(MAC),
- [XONTXC] = markflag(MAC), [XOFFRXC] = markflag(MAC),
- [RJC] = markflag(MAC), [RNBC] = markflag(MAC),
- [MGTPDC] = markflag(MAC), [MGTPTC] = markflag(MAC),
- [RUC] = markflag(MAC), [ROC] = markflag(MAC),
- [GORCL] = markflag(MAC), [GORCH] = markflag(MAC),
- [GOTCL] = markflag(MAC), [GOTCH] = markflag(MAC),
- [BPRC] = markflag(MAC), [MPRC] = markflag(MAC),
- [TSCTC] = markflag(MAC), [PRC64] = markflag(MAC),
- [PRC127] = markflag(MAC), [PRC255] = markflag(MAC),
- [PRC511] = markflag(MAC), [PRC1023] = markflag(MAC),
- [PRC1522] = markflag(MAC), [PTC64] = markflag(MAC),
- [PTC127] = markflag(MAC), [PTC255] = markflag(MAC),
- [PTC511] = markflag(MAC), [PTC1023] = markflag(MAC),
- [PTC1522] = markflag(MAC), [MPTC] = markflag(MAC),
- [BPTC] = markflag(MAC),
-
- [TDFH] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [TDFT] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [TDFHS] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [TDFTS] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [TDFPC] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [RDFH] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [RDFT] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [RDFHS] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [RDFTS] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [RDFPC] = markflag(MAC) | MAC_ACCESS_PARTIAL,
- [PBM] = markflag(MAC) | MAC_ACCESS_PARTIAL,
-};
-
-static void
-e1000_mmio_write(void *opaque, hwaddr addr, uint64_t val,
- unsigned size)
-{
- E1000State *s = opaque;
- unsigned int index = (addr & 0x1ffff) >> 2;
-
- if (index < NWRITEOPS && macreg_writeops[index]) {
- if (!(mac_reg_access[index] & MAC_ACCESS_FLAG_NEEDED)
- || (s->compat_flags & (mac_reg_access[index] >> 2))) {
- if (mac_reg_access[index] & MAC_ACCESS_PARTIAL) {
- DBGOUT(GENERAL, "Writing to register at offset: 0x%08x. "
- "It is not fully implemented.\n", index<<2);
- }
- macreg_writeops[index](s, index, val);
- } else { /* "flag needed" bit is set, but the flag is not active */
- DBGOUT(MMIO, "MMIO write attempt to disabled reg. addr=0x%08x\n",
- index<<2);
- }
- } else if (index < NREADOPS && macreg_readops[index]) {
- DBGOUT(MMIO, "e1000_mmio_writel RO %x: 0x%04"PRIx64"\n",
- index<<2, val);
- } else {
- DBGOUT(UNKNOWN, "MMIO unknown write addr=0x%08x,val=0x%08"PRIx64"\n",
- index<<2, val);
- }
-}
-
-static uint64_t
-e1000_mmio_read(void *opaque, hwaddr addr, unsigned size)
-{
- E1000State *s = opaque;
- unsigned int index = (addr & 0x1ffff) >> 2;
-
- if (index < NREADOPS && macreg_readops[index]) {
- if (!(mac_reg_access[index] & MAC_ACCESS_FLAG_NEEDED)
- || (s->compat_flags & (mac_reg_access[index] >> 2))) {
- if (mac_reg_access[index] & MAC_ACCESS_PARTIAL) {
- DBGOUT(GENERAL, "Reading register at offset: 0x%08x. "
- "It is not fully implemented.\n", index<<2);
- }
- return macreg_readops[index](s, index);
- } else { /* "flag needed" bit is set, but the flag is not active */
- DBGOUT(MMIO, "MMIO read attempt of disabled reg. addr=0x%08x\n",
- index<<2);
- }
- } else {
- DBGOUT(UNKNOWN, "MMIO unknown read addr=0x%08x\n", index<<2);
- }
- return 0;
-}
-
-static const MemoryRegionOps e1000_mmio_ops = {
- .read = e1000_mmio_read,
- .write = e1000_mmio_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
- .impl = {
- .min_access_size = 4,
- .max_access_size = 4,
- },
-};
-
-static uint64_t e1000_io_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- E1000State *s = opaque;
-
- (void)s;
- return 0;
-}
-
-static void e1000_io_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
- E1000State *s = opaque;
-
- (void)s;
-}
-
-static const MemoryRegionOps e1000_io_ops = {
- .read = e1000_io_read,
- .write = e1000_io_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-static bool is_version_1(void *opaque, int version_id)
-{
- return version_id == 1;
-}
-
-static void e1000_pre_save(void *opaque)
-{
- E1000State *s = opaque;
- NetClientState *nc = qemu_get_queue(s->nic);
-
- /* If the mitigation timer is active, emulate a timeout now. */
- if (s->mit_timer_on) {
- e1000_mit_timer(s);
- }
-
- /*
- * If link is down and auto-negotiation is supported and ongoing,
- * complete auto-negotiation immediately. This allows us to look
- * at MII_SR_AUTONEG_COMPLETE to infer link status on load.
- */
- if (nc->link_down && have_autoneg(s)) {
- s->phy_reg[PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE;
- }
-}
-
-static int e1000_post_load(void *opaque, int version_id)
-{
- E1000State *s = opaque;
- NetClientState *nc = qemu_get_queue(s->nic);
-
- if (!chkflag(MIT)) {
- s->mac_reg[ITR] = s->mac_reg[RDTR] = s->mac_reg[RADV] =
- s->mac_reg[TADV] = 0;
- s->mit_irq_level = false;
- }
- s->mit_ide = 0;
- s->mit_timer_on = false;
-
- /* nc.link_down can't be migrated, so infer link_down according
- * to link status bit in mac_reg[STATUS].
- * Alternatively, restart link negotiation if it was in progress. */
- nc->link_down = (s->mac_reg[STATUS] & E1000_STATUS_LU) == 0;
-
- if (have_autoneg(s) &&
- !(s->phy_reg[PHY_STATUS] & MII_SR_AUTONEG_COMPLETE)) {
- nc->link_down = false;
- timer_mod(s->autoneg_timer,
- qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
- }
-
- return 0;
-}
-
-static bool e1000_mit_state_needed(void *opaque)
-{
- E1000State *s = opaque;
-
- return chkflag(MIT);
-}
-
-static bool e1000_full_mac_needed(void *opaque)
-{
- E1000State *s = opaque;
-
- return chkflag(MAC);
-}
-
-static const VMStateDescription vmstate_e1000_mit_state = {
- .name = "e1000/mit_state",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = e1000_mit_state_needed,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(mac_reg[RDTR], E1000State),
- VMSTATE_UINT32(mac_reg[RADV], E1000State),
- VMSTATE_UINT32(mac_reg[TADV], E1000State),
- VMSTATE_UINT32(mac_reg[ITR], E1000State),
- VMSTATE_BOOL(mit_irq_level, E1000State),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_e1000_full_mac_state = {
- .name = "e1000/full_mac_state",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = e1000_full_mac_needed,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32_ARRAY(mac_reg, E1000State, 0x8000),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_e1000 = {
- .name = "e1000",
- .version_id = 2,
- .minimum_version_id = 1,
- .pre_save = e1000_pre_save,
- .post_load = e1000_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_PCI_DEVICE(parent_obj, E1000State),
- VMSTATE_UNUSED_TEST(is_version_1, 4), /* was instance id */
- VMSTATE_UNUSED(4), /* Was mmio_base. */
- VMSTATE_UINT32(rxbuf_size, E1000State),
- VMSTATE_UINT32(rxbuf_min_shift, E1000State),
- VMSTATE_UINT32(eecd_state.val_in, E1000State),
- VMSTATE_UINT16(eecd_state.bitnum_in, E1000State),
- VMSTATE_UINT16(eecd_state.bitnum_out, E1000State),
- VMSTATE_UINT16(eecd_state.reading, E1000State),
- VMSTATE_UINT32(eecd_state.old_eecd, E1000State),
- VMSTATE_UINT8(tx.ipcss, E1000State),
- VMSTATE_UINT8(tx.ipcso, E1000State),
- VMSTATE_UINT16(tx.ipcse, E1000State),
- VMSTATE_UINT8(tx.tucss, E1000State),
- VMSTATE_UINT8(tx.tucso, E1000State),
- VMSTATE_UINT16(tx.tucse, E1000State),
- VMSTATE_UINT32(tx.paylen, E1000State),
- VMSTATE_UINT8(tx.hdr_len, E1000State),
- VMSTATE_UINT16(tx.mss, E1000State),
- VMSTATE_UINT16(tx.size, E1000State),
- VMSTATE_UINT16(tx.tso_frames, E1000State),
- VMSTATE_UINT8(tx.sum_needed, E1000State),
- VMSTATE_INT8(tx.ip, E1000State),
- VMSTATE_INT8(tx.tcp, E1000State),
- VMSTATE_BUFFER(tx.header, E1000State),
- VMSTATE_BUFFER(tx.data, E1000State),
- VMSTATE_UINT16_ARRAY(eeprom_data, E1000State, 64),
- VMSTATE_UINT16_ARRAY(phy_reg, E1000State, 0x20),
- VMSTATE_UINT32(mac_reg[CTRL], E1000State),
- VMSTATE_UINT32(mac_reg[EECD], E1000State),
- VMSTATE_UINT32(mac_reg[EERD], E1000State),
- VMSTATE_UINT32(mac_reg[GPRC], E1000State),
- VMSTATE_UINT32(mac_reg[GPTC], E1000State),
- VMSTATE_UINT32(mac_reg[ICR], E1000State),
- VMSTATE_UINT32(mac_reg[ICS], E1000State),
- VMSTATE_UINT32(mac_reg[IMC], E1000State),
- VMSTATE_UINT32(mac_reg[IMS], E1000State),
- VMSTATE_UINT32(mac_reg[LEDCTL], E1000State),
- VMSTATE_UINT32(mac_reg[MANC], E1000State),
- VMSTATE_UINT32(mac_reg[MDIC], E1000State),
- VMSTATE_UINT32(mac_reg[MPC], E1000State),
- VMSTATE_UINT32(mac_reg[PBA], E1000State),
- VMSTATE_UINT32(mac_reg[RCTL], E1000State),
- VMSTATE_UINT32(mac_reg[RDBAH], E1000State),
- VMSTATE_UINT32(mac_reg[RDBAL], E1000State),
- VMSTATE_UINT32(mac_reg[RDH], E1000State),
- VMSTATE_UINT32(mac_reg[RDLEN], E1000State),
- VMSTATE_UINT32(mac_reg[RDT], E1000State),
- VMSTATE_UINT32(mac_reg[STATUS], E1000State),
- VMSTATE_UINT32(mac_reg[SWSM], E1000State),
- VMSTATE_UINT32(mac_reg[TCTL], E1000State),
- VMSTATE_UINT32(mac_reg[TDBAH], E1000State),
- VMSTATE_UINT32(mac_reg[TDBAL], E1000State),
- VMSTATE_UINT32(mac_reg[TDH], E1000State),
- VMSTATE_UINT32(mac_reg[TDLEN], E1000State),
- VMSTATE_UINT32(mac_reg[TDT], E1000State),
- VMSTATE_UINT32(mac_reg[TORH], E1000State),
- VMSTATE_UINT32(mac_reg[TORL], E1000State),
- VMSTATE_UINT32(mac_reg[TOTH], E1000State),
- VMSTATE_UINT32(mac_reg[TOTL], E1000State),
- VMSTATE_UINT32(mac_reg[TPR], E1000State),
- VMSTATE_UINT32(mac_reg[TPT], E1000State),
- VMSTATE_UINT32(mac_reg[TXDCTL], E1000State),
- VMSTATE_UINT32(mac_reg[WUFC], E1000State),
- VMSTATE_UINT32(mac_reg[VET], E1000State),
- VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, RA, 32),
- VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, MTA, 128),
- VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, VFTA, 128),
- VMSTATE_END_OF_LIST()
- },
- .subsections = (const VMStateDescription*[]) {
- &vmstate_e1000_mit_state,
- &vmstate_e1000_full_mac_state,
- NULL
- }
-};
-
-/*
- * EEPROM contents documented in Tables 5-2 and 5-3, pp. 98-102.
- * Note: A valid DevId will be inserted during pci_e1000_init().
- */
-static const uint16_t e1000_eeprom_template[64] = {
- 0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0x0000, 0x0000, 0x0000,
- 0x3000, 0x1000, 0x6403, 0 /*DevId*/, 0x8086, 0 /*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,
-};
-
-/* PCI interface */
-
-static void
-e1000_mmio_setup(E1000State *d)
-{
- int i;
- const uint32_t excluded_regs[] = {
- E1000_MDIC, E1000_ICR, E1000_ICS, E1000_IMS,
- E1000_IMC, E1000_TCTL, E1000_TDT, PNPMMIO_SIZE
- };
-
- memory_region_init_io(&d->mmio, OBJECT(d), &e1000_mmio_ops, d,
- "e1000-mmio", PNPMMIO_SIZE);
- memory_region_add_coalescing(&d->mmio, 0, excluded_regs[0]);
- for (i = 0; excluded_regs[i] != PNPMMIO_SIZE; i++)
- memory_region_add_coalescing(&d->mmio, excluded_regs[i] + 4,
- excluded_regs[i+1] - excluded_regs[i] - 4);
- memory_region_init_io(&d->io, OBJECT(d), &e1000_io_ops, d, "e1000-io", IOPORT_SIZE);
-}
-
-static void
-pci_e1000_uninit(PCIDevice *dev)
-{
- E1000State *d = E1000(dev);
-
- timer_del(d->autoneg_timer);
- timer_free(d->autoneg_timer);
- timer_del(d->mit_timer);
- timer_free(d->mit_timer);
- qemu_del_nic(d->nic);
-}
-
-static NetClientInfo net_e1000_info = {
- .type = NET_CLIENT_OPTIONS_KIND_NIC,
- .size = sizeof(NICState),
- .can_receive = e1000_can_receive,
- .receive = e1000_receive,
- .receive_iov = e1000_receive_iov,
- .link_status_changed = e1000_set_link_status,
-};
-
-static void e1000_write_config(PCIDevice *pci_dev, uint32_t address,
- uint32_t val, int len)
-{
- E1000State *s = E1000(pci_dev);
-
- pci_default_write_config(pci_dev, address, val, len);
-
- if (range_covers_byte(address, len, PCI_COMMAND) &&
- (pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) {
- qemu_flush_queued_packets(qemu_get_queue(s->nic));
- }
-}
-
-
-static void pci_e1000_realize(PCIDevice *pci_dev, Error **errp)
-{
- DeviceState *dev = DEVICE(pci_dev);
- E1000State *d = E1000(pci_dev);
- PCIDeviceClass *pdc = PCI_DEVICE_GET_CLASS(pci_dev);
- uint8_t *pci_conf;
- uint16_t checksum = 0;
- int i;
- uint8_t *macaddr;
-
- pci_dev->config_write = e1000_write_config;
-
- pci_conf = pci_dev->config;
-
- /* TODO: RST# value should be 0, PCI spec 6.2.4 */
- pci_conf[PCI_CACHE_LINE_SIZE] = 0x10;
-
- pci_conf[PCI_INTERRUPT_PIN] = 1; /* interrupt pin A */
-
- e1000_mmio_setup(d);
-
- pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
-
- pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->io);
-
- memmove(d->eeprom_data, e1000_eeprom_template,
- sizeof e1000_eeprom_template);
- qemu_macaddr_default_if_unset(&d->conf.macaddr);
- macaddr = d->conf.macaddr.a;
- for (i = 0; i < 3; i++)
- d->eeprom_data[i] = (macaddr[2*i+1]<<8) | macaddr[2*i];
- d->eeprom_data[11] = d->eeprom_data[13] = pdc->device_id;
- 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->nic = qemu_new_nic(&net_e1000_info, &d->conf,
- object_get_typename(OBJECT(d)), dev->id, d);
-
- qemu_format_nic_info_str(qemu_get_queue(d->nic), macaddr);
-
- d->autoneg_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, e1000_autoneg_timer, d);
- d->mit_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000_mit_timer, d);
-}
-
-static void qdev_e1000_reset(DeviceState *dev)
-{
- E1000State *d = E1000(dev);
- e1000_reset(d);
-}
-
-static Property e1000_properties[] = {
- DEFINE_NIC_PROPERTIES(E1000State, conf),
- DEFINE_PROP_BIT("autonegotiation", E1000State,
- compat_flags, E1000_FLAG_AUTONEG_BIT, true),
- DEFINE_PROP_BIT("mitigation", E1000State,
- compat_flags, E1000_FLAG_MIT_BIT, true),
- DEFINE_PROP_BIT("extra_mac_registers", E1000State,
- compat_flags, E1000_FLAG_MAC_BIT, true),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-typedef struct E1000Info {
- const char *name;
- uint16_t device_id;
- uint8_t revision;
- uint16_t phy_id2;
-} E1000Info;
-
-static void e1000_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
- E1000BaseClass *e = E1000_DEVICE_CLASS(klass);
- const E1000Info *info = data;
-
- k->realize = pci_e1000_realize;
- k->exit = pci_e1000_uninit;
- k->romfile = "efi-e1000.rom";
- k->vendor_id = PCI_VENDOR_ID_INTEL;
- k->device_id = info->device_id;
- k->revision = info->revision;
- e->phy_id2 = info->phy_id2;
- k->class_id = PCI_CLASS_NETWORK_ETHERNET;
- set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
- dc->desc = "Intel Gigabit Ethernet";
- dc->reset = qdev_e1000_reset;
- dc->vmsd = &vmstate_e1000;
- dc->props = e1000_properties;
-}
-
-static void e1000_instance_init(Object *obj)
-{
- E1000State *n = E1000(obj);
- device_add_bootindex_property(obj, &n->conf.bootindex,
- "bootindex", "/ethernet-phy@0",
- DEVICE(n), NULL);
-}
-
-static const TypeInfo e1000_base_info = {
- .name = TYPE_E1000_BASE,
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(E1000State),
- .instance_init = e1000_instance_init,
- .class_size = sizeof(E1000BaseClass),
- .abstract = true,
-};
-
-static const E1000Info e1000_devices[] = {
- {
- .name = "e1000",
- .device_id = E1000_DEV_ID_82540EM,
- .revision = 0x03,
- .phy_id2 = E1000_PHY_ID2_8254xx_DEFAULT,
- },
- {
- .name = "e1000-82544gc",
- .device_id = E1000_DEV_ID_82544GC_COPPER,
- .revision = 0x03,
- .phy_id2 = E1000_PHY_ID2_82544x,
- },
- {
- .name = "e1000-82545em",
- .device_id = E1000_DEV_ID_82545EM_COPPER,
- .revision = 0x03,
- .phy_id2 = E1000_PHY_ID2_8254xx_DEFAULT,
- },
-};
-
-static void e1000_register_types(void)
-{
- int i;
-
- type_register_static(&e1000_base_info);
- for (i = 0; i < ARRAY_SIZE(e1000_devices); i++) {
- const E1000Info *info = &e1000_devices[i];
- TypeInfo type_info = {};
-
- type_info.name = info->name;
- type_info.parent = TYPE_E1000_BASE;
- type_info.class_data = (void *)info;
- type_info.class_init = e1000_class_init;
- type_info.instance_init = e1000_instance_init;
-
- type_register(&type_info);
- }
-}
-
-type_init(e1000_register_types)