The following changes since commit 187f35512106501fe9a11057f4d8705431e0026d:

Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-next-251019-3' into staging (2019-10-26 10:13:48 +0100)

for you to fetch changes up to 5af982a47cf6b6cd9beb872e5a9b940e43df5bf9:

COLO-compare: Fix incorrect `if` logic (2019-10-28 14:28:31 +0800)

----------------------------------------------------------------

Fan Yang (1):

COLO-compare: Fix incorrect `if` logic

Michael S. Tsirkin (1):

virtio: new post_load hook

Mikhail Sennikovsky (1):

virtio-net: prevent offloads reset on migration

Sven Schnelle (1):

net: add tulip (dec21143) driver

MAINTAINERS | 6 +

hw/net/Kconfig | 5 +

hw/net/Makefile.objs | 1 +

hw/net/trace-events | 14 +

hw/net/tulip.c | 1029 ++++++++++++++++++++++++++++++++++++++++

hw/net/tulip.h | 267 +++++++++++

hw/net/virtio-net.c | 27 +-

hw/virtio/virtio.c | 7 +

include/hw/pci/pci_ids.h | 1 +

include/hw/virtio/virtio-net.h | 2 +

include/hw/virtio/virtio.h | 6 +

net/colo-compare.c | 6 +-

12 files changed, 1365 insertions(+), 6 deletions(-)

create mode 100644 hw/net/tulip.c

create mode 100644 hw/net/tulip.h

From: Sven Schnelle <svens@stackframe.org>

This adds the basic functionality to emulate a Tulip NIC.

Implemented are:

- RX and TX functionality

- Perfect Frame Filtering

- Big/Little Endian descriptor support

- 93C46 EEPROM support

- LXT970 PHY

Not implemented, mostly because i had no OS using these functions:

- Imperfect frame filtering

- General Purpose Timer

- Transmit automatic polling

- Boot ROM support

- SIA interface

- Big/Little Endian data buffer conversion

Successfully tested with the following Operating Systems:

- MSDOS with Microsoft Network Client 3.0 and DEC ODI drivers

- HPPA Linux

- Windows XP

- HP-UX

Signed-off-by: Sven Schnelle <svens@stackframe.org>

Message-Id: <20191022155413.4619-1-svens@stackframe.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

MAINTAINERS | 6 +

hw/net/Kconfig | 5 +

hw/net/Makefile.objs | 1 +

hw/net/trace-events | 14 +

hw/net/tulip.c | 1029 ++++++++++++++++++++++++++++++++++++++++++++++

hw/net/tulip.h | 267 ++++++++++++

include/hw/pci/pci_ids.h | 1 +

7 files changed, 1323 insertions(+)

create mode 100644 hw/net/tulip.c

create mode 100644 hw/net/tulip.h

diff --git a/MAINTAINERS b/MAINTAINERS

--- a/MAINTAINERS

+++ b/MAINTAINERS

@@ -XXX,XX +XXX,XX @@ M: Stefan Weil <sw@weilnetz.de>

S: Maintained

F: hw/net/eepro100.c

+tulip

+M: Sven Schnelle <svens@stackframe.org>

+S: Maintained

+F: hw/net/tulip.c

+F: hw/net/tulip.h

+

Generic Loader

M: Alistair Francis <alistair@alistair23.me>

S: Maintained

diff --git a/hw/net/Kconfig b/hw/net/Kconfig

index XXXXXXX..XXXXXXX 100644

--- a/hw/net/Kconfig

+++ b/hw/net/Kconfig

@@ -XXX,XX +XXX,XX @@ config PCNET_PCI

config PCNET_COMMON

bool

+config TULIP

+ bool

+ default y if PCI_DEVICES

+ depends on PCI

+

config E1000_PCI

bool

default y if PCI_DEVICES

diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs

index XXXXXXX..XXXXXXX 100644

--- a/hw/net/Makefile.objs

+++ b/hw/net/Makefile.objs

@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_E1000E_PCI_EXPRESS) += e1000e.o e1000e_core.o e1000x_common.

common-obj-$(CONFIG_RTL8139_PCI) += rtl8139.o

common-obj-$(CONFIG_VMXNET3_PCI) += net_tx_pkt.o net_rx_pkt.o

common-obj-$(CONFIG_VMXNET3_PCI) += vmxnet3.o

+common-obj-$(CONFIG_TULIP) += tulip.o

common-obj-$(CONFIG_SMC91C111) += smc91c111.o

common-obj-$(CONFIG_LAN9118) += lan9118.o

diff --git a/hw/net/trace-events b/hw/net/trace-events

index XXXXXXX..XXXXXXX 100644

--- a/hw/net/trace-events

+++ b/hw/net/trace-events

@@ -XXX,XX +XXX,XX @@ virtio_net_announce_notify(void) ""

virtio_net_announce_timer(int round) "%d"

virtio_net_handle_announce(int round) "%d"

virtio_net_post_load_device(void)

+

+# tulip.c

+tulip_reg_write(uint64_t addr, const char *name, int size, uint64_t val) "addr 0x%02"PRIx64" (%s) size %d value 0x%08"PRIx64

+tulip_reg_read(uint64_t addr, const char *name, int size, uint64_t val) "addr 0x%02"PRIx64" (%s) size %d value 0x%08"PRIx64

+tulip_receive(const uint8_t *buf, size_t len) "buf %p size %zu"

+tulip_descriptor(const char *prefix, uint32_t addr, uint32_t status, uint32_t control, uint32_t len1, uint32_t len2, uint32_t buf1, uint32_t buf2) "%s 0x%08x: status 0x%08x control 0x%03x len1 %4d len2 %4d buf1 0x%08x buf2 0x%08x"

+tulip_rx_state(const char *state) "RX %s"

+tulip_tx_state(const char *state) "TX %s"

+tulip_irq(uint32_t mask, uint32_t en, const char *state) "mask 0x%08x ie 0x%08x %s"

+tulip_mii_write(int phy, int reg, uint16_t data) "phy 0x%x reg 0x%x data 0x%04x"

+tulip_mii_read(int phy, int reg, uint16_t data) "phy 0x%x, reg 0x%x data 0x%04x"

+tulip_reset(void) ""

+tulip_setup_frame(void) ""

+tulip_setup_filter(int n, uint8_t a, uint8_t b, uint8_t c, uint8_t d, uint8_t e, uint8_t f) "%d: %02x:%02x:%02x:%02x:%02x:%02x"

diff --git a/hw/net/tulip.c b/hw/net/tulip.c

new file mode 100644

index XXXXXXX..XXXXXXX

--- /dev/null

+++ b/hw/net/tulip.c

@@ -XXX,XX +XXX,XX @@

+/*

+ * QEMU TULIP Emulation

+ *

+ * Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>

+ *

+ * This work is licensed under the GNU GPL license version 2 or later.

+ */

+

+#include "qemu/osdep.h"

+#include "qemu/log.h"

+#include "hw/irq.h"

+#include "hw/pci/pci.h"

+#include "hw/qdev-properties.h"

+#include "hw/nvram/eeprom93xx.h"

+#include "migration/vmstate.h"

+#include "sysemu/sysemu.h"

+#include "tulip.h"

+#include "trace.h"

+#include "net/eth.h"

+

+typedef struct TULIPState {

+ PCIDevice dev;

+ MemoryRegion io;

+ MemoryRegion memory;

+ NICConf c;

+ qemu_irq irq;

+ NICState *nic;

+ eeprom_t *eeprom;

+ uint32_t csr[16];

+

+ /* state for MII */

+ uint32_t old_csr9;

+ uint32_t mii_word;

+ uint32_t mii_bitcnt;

+

+ hwaddr current_rx_desc;

+ hwaddr current_tx_desc;

+

+ uint8_t rx_frame[2048];

+ uint8_t tx_frame[2048];

+ uint16_t tx_frame_len;

+ uint16_t rx_frame_len;

+ uint16_t rx_frame_size;

+

+ uint32_t rx_status;

+ uint8_t filter[16][6];

+} TULIPState;

+

+static const VMStateDescription vmstate_pci_tulip = {

+ .name = "tulip",

+ .fields = (VMStateField[]) {

+ VMSTATE_PCI_DEVICE(dev, TULIPState),

+ VMSTATE_UINT32_ARRAY(csr, TULIPState, 16),

+ VMSTATE_UINT32(old_csr9, TULIPState),

+ VMSTATE_UINT32(mii_word, TULIPState),

+ VMSTATE_UINT32(mii_bitcnt, TULIPState),

+ VMSTATE_UINT64(current_rx_desc, TULIPState),

+ VMSTATE_UINT64(current_tx_desc, TULIPState),

+ VMSTATE_BUFFER(rx_frame, TULIPState),

+ VMSTATE_BUFFER(tx_frame, TULIPState),

+ VMSTATE_UINT16(rx_frame_len, TULIPState),

+ VMSTATE_UINT16(tx_frame_len, TULIPState),

+ VMSTATE_UINT16(rx_frame_size, TULIPState),

+ VMSTATE_UINT32(rx_status, TULIPState),

+ VMSTATE_UINT8_2DARRAY(filter, TULIPState, 16, 6),

+ VMSTATE_END_OF_LIST()

+ }

+};

+

+static void tulip_desc_read(TULIPState *s, hwaddr p,

+ struct tulip_descriptor *desc)

+{

+ if (s->csr[0] & CSR0_DBO) {

+ desc->status = ldl_be_pci_dma(&s->dev, p);

+ desc->control = ldl_be_pci_dma(&s->dev, p + 4);

+ desc->buf_addr1 = ldl_be_pci_dma(&s->dev, p + 8);

+ desc->buf_addr2 = ldl_be_pci_dma(&s->dev, p + 12);

+ } else {

+ desc->status = ldl_le_pci_dma(&s->dev, p);

+ desc->control = ldl_le_pci_dma(&s->dev, p + 4);

+ desc->buf_addr1 = ldl_le_pci_dma(&s->dev, p + 8);

+ desc->buf_addr2 = ldl_le_pci_dma(&s->dev, p + 12);

+ }

+}

+

+static void tulip_desc_write(TULIPState *s, hwaddr p,

+ struct tulip_descriptor *desc)

+{

+ if (s->csr[0] & CSR0_DBO) {

+ stl_be_pci_dma(&s->dev, p, desc->status);

+ stl_be_pci_dma(&s->dev, p + 4, desc->control);

+ stl_be_pci_dma(&s->dev, p + 8, desc->buf_addr1);

+ stl_be_pci_dma(&s->dev, p + 12, desc->buf_addr2);

+ } else {

+ stl_le_pci_dma(&s->dev, p, desc->status);

+ stl_le_pci_dma(&s->dev, p + 4, desc->control);

+ stl_le_pci_dma(&s->dev, p + 8, desc->buf_addr1);

+ stl_le_pci_dma(&s->dev, p + 12, desc->buf_addr2);

+ }

+}

+

+static void tulip_update_int(TULIPState *s)

+{

+ uint32_t ie = s->csr[5] & s->csr[7];

+ bool assert = false;

+

+ s->csr[5] &= ~(CSR5_AIS | CSR5_NIS);

+

+ if (ie & (CSR5_TI | CSR5_TU | CSR5_RI | CSR5_GTE | CSR5_ERI)) {

+ s->csr[5] |= CSR5_NIS;

+ }

+

+ if (ie & (CSR5_LC | CSR5_GPI | CSR5_FBE | CSR5_LNF | CSR5_ETI | CSR5_RWT |

+ CSR5_RPS | CSR5_RU | CSR5_UNF | CSR5_LNP_ANC | CSR5_TJT |

+ CSR5_TPS)) {

+ s->csr[5] |= CSR5_AIS;

+ }

+

+ assert = s->csr[5] & s->csr[7] & (CSR5_AIS | CSR5_NIS);

+ trace_tulip_irq(s->csr[5], s->csr[7], assert ? "assert" : "deassert");

+ qemu_set_irq(s->irq, assert);

+}

+

+static bool tulip_rx_stopped(TULIPState *s)

+{

+ return ((s->csr[5] >> CSR5_RS_SHIFT) & CSR5_RS_MASK) == CSR5_RS_STOPPED;

+}

+

+static void tulip_dump_tx_descriptor(TULIPState *s,

+ struct tulip_descriptor *desc)

+{

+ trace_tulip_descriptor("TX ", s->current_tx_desc,

+ desc->status, desc->control >> 22,

+ desc->control & 0x7ff, (desc->control >> 11) & 0x7ff,

+ desc->buf_addr1, desc->buf_addr2);

+}

+

+static void tulip_dump_rx_descriptor(TULIPState *s,

+ struct tulip_descriptor *desc)

+{

+ trace_tulip_descriptor("RX ", s->current_rx_desc,

+ desc->status, desc->control >> 22,

+ desc->control & 0x7ff, (desc->control >> 11) & 0x7ff,

+ desc->buf_addr1, desc->buf_addr2);

+}

+

+static void tulip_next_rx_descriptor(TULIPState *s,

+ struct tulip_descriptor *desc)

+{

+ if (desc->control & RDES1_RER) {

+ s->current_rx_desc = s->csr[3];

+ } else if (desc->control & RDES1_RCH) {

+ s->current_rx_desc = desc->buf_addr2;

+ } else {

+ s->current_rx_desc += sizeof(struct tulip_descriptor) +

+ (((s->csr[0] >> CSR0_DSL_SHIFT) & CSR0_DSL_MASK) << 2);

+ }

+ s->current_rx_desc &= ~3ULL;

+}

+

+static void tulip_copy_rx_bytes(TULIPState *s, struct tulip_descriptor *desc)

+{

+ int len1 = (desc->control >> RDES1_BUF1_SIZE_SHIFT) & RDES1_BUF1_SIZE_MASK;

+ int len2 = (desc->control >> RDES1_BUF2_SIZE_SHIFT) & RDES1_BUF2_SIZE_MASK;

+ int len;

+

+ if (s->rx_frame_len && len1) {

+ if (s->rx_frame_len > len1) {

+ len = len1;

+ } else {

+ len = s->rx_frame_len;

+ }

+ pci_dma_write(&s->dev, desc->buf_addr1, s->rx_frame +

+ (s->rx_frame_size - s->rx_frame_len), len);

+ s->rx_frame_len -= len;

+ }

+

+ if (s->rx_frame_len && len2) {

+ if (s->rx_frame_len > len2) {

+ len = len2;

+ } else {

+ len = s->rx_frame_len;

+ }

+ pci_dma_write(&s->dev, desc->buf_addr2, s->rx_frame +

+ (s->rx_frame_size - s->rx_frame_len), len);

+ s->rx_frame_len -= len;

+ }

+}

+

+static bool tulip_filter_address(TULIPState *s, const uint8_t *addr)

+{

+ static const char broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };

+ bool ret = false;

+ int i;

+

+ for (i = 0; i < 16 && ret == false; i++) {

+ if (!memcmp(&s->filter[i], addr, ETH_ALEN)) {

+ ret = true;

+ }

+ }

+

+ if (!memcmp(addr, broadcast, ETH_ALEN)) {

+ return true;

+ }

+

+ if (s->csr[6] & (CSR6_PR | CSR6_RA)) {

+ /* Promiscuous mode enabled */

+ s->rx_status |= RDES0_FF;

+ return true;

+ }

+

+ if ((s->csr[6] & CSR6_PM) && (addr[0] & 1)) {

+ /* Pass all Multicast enabled */

+ s->rx_status |= RDES0_MF;

+ return true;

+ }

+

+ if (s->csr[6] & CSR6_IF) {

+ ret ^= true;

+ }

+ return ret;

+}

+

+static ssize_t tulip_receive(TULIPState *s, const uint8_t *buf, size_t size)

+{

+ struct tulip_descriptor desc;

+

+ trace_tulip_receive(buf, size);

+

+ if (size < 14 || size > 2048 || s->rx_frame_len || tulip_rx_stopped(s)) {

+ return 0;

+ }

+

+ if (!tulip_filter_address(s, buf)) {

+ return size;

+ }

+

+ do {

+ tulip_desc_read(s, s->current_rx_desc, &desc);

+ tulip_dump_rx_descriptor(s, &desc);

+

+ if (!(desc.status & RDES0_OWN)) {

+ s->csr[5] |= CSR5_RU;

+ tulip_update_int(s);

+ return s->rx_frame_size - s->rx_frame_len;

+ }

+ desc.status = 0;

+

+ if (!s->rx_frame_len) {

+ s->rx_frame_size = size + 4;

+ s->rx_status = RDES0_LS |

+ ((s->rx_frame_size & RDES0_FL_MASK) << RDES0_FL_SHIFT);

+ desc.status |= RDES0_FS;

+ memcpy(s->rx_frame, buf, size);

+ s->rx_frame_len = s->rx_frame_size;

+ }

+

+ tulip_copy_rx_bytes(s, &desc);

+

+ if (!s->rx_frame_len) {

+ desc.status |= s->rx_status;

+ s->csr[5] |= CSR5_RI;

+ tulip_update_int(s);

+ }

+ tulip_dump_rx_descriptor(s, &desc);

+ tulip_desc_write(s, s->current_rx_desc, &desc);

+ tulip_next_rx_descriptor(s, &desc);

+ } while (s->rx_frame_len);

+ return size;

+}

+

+static ssize_t tulip_receive_nc(NetClientState *nc,

+ const uint8_t *buf, size_t size)

+{

+ return tulip_receive(qemu_get_nic_opaque(nc), buf, size);

+}

+

+

+static NetClientInfo net_tulip_info = {

+ .type = NET_CLIENT_DRIVER_NIC,

+ .size = sizeof(NICState),

+ .receive = tulip_receive_nc,

+};

+

+static const char *tulip_reg_name(const hwaddr addr)

+{

+ switch (addr) {

+ case CSR(0):

+ return "CSR0";

+

+ case CSR(1):

+ return "CSR1";

+

+ case CSR(2):

+ return "CSR2";

+

+ case CSR(3):

+ return "CSR3";

+

+ case CSR(4):

+ return "CSR4";

+

+ case CSR(5):

+ return "CSR5";

+

+ case CSR(6):

+ return "CSR6";

+

+ case CSR(7):

+ return "CSR7";

+

+ case CSR(8):

+ return "CSR8";

+

+ case CSR(9):

+ return "CSR9";

+

+ case CSR(10):

+ return "CSR10";

+

+ case CSR(11):

+ return "CSR11";

+

+ case CSR(12):

+ return "CSR12";

+

+ case CSR(13):

+ return "CSR13";

+

+ case CSR(14):

+ return "CSR14";

+

+ case CSR(15):

+ return "CSR15";

+

+ default:

+ break;

+ }

+ return "";

+}

+

+static const char *tulip_rx_state_name(int state)

+{

+ switch (state) {

+ case CSR5_RS_STOPPED:

+ return "STOPPED";

+

+ case CSR5_RS_RUNNING_FETCH:

+ return "RUNNING/FETCH";

+

+ case CSR5_RS_RUNNING_CHECK_EOR:

+ return "RUNNING/CHECK EOR";

+

+ case CSR5_RS_RUNNING_WAIT_RECEIVE:

+ return "WAIT RECEIVE";

+

+ case CSR5_RS_SUSPENDED:

+ return "SUSPENDED";

+

+ case CSR5_RS_RUNNING_CLOSE:

+ return "RUNNING/CLOSE";

+

+ case CSR5_RS_RUNNING_FLUSH:

+ return "RUNNING/FLUSH";

+

+ case CSR5_RS_RUNNING_QUEUE:

+ return "RUNNING/QUEUE";

+

+ default:

+ break;

+ }

+ return "";

+}

+

+static const char *tulip_tx_state_name(int state)

+{

+ switch (state) {

+ case CSR5_TS_STOPPED:

+ return "STOPPED";

+

+ case CSR5_TS_RUNNING_FETCH:

+ return "RUNNING/FETCH";

+

+ case CSR5_TS_RUNNING_WAIT_EOT:

+ return "RUNNING/WAIT EOT";

+

+ case CSR5_TS_RUNNING_READ_BUF:

+ return "RUNNING/READ BUF";

+

+ case CSR5_TS_RUNNING_SETUP:

+ return "RUNNING/SETUP";

+

+ case CSR5_TS_SUSPENDED:

+ return "SUSPENDED";

+

+ case CSR5_TS_RUNNING_CLOSE:

+ return "RUNNING/CLOSE";

+

+ default:

+ break;

+ }

+ return "";

+}

+

+static void tulip_update_rs(TULIPState *s, int state)

+{

+ s->csr[5] &= ~(CSR5_RS_MASK << CSR5_RS_SHIFT);

+ s->csr[5] |= (state & CSR5_RS_MASK) << CSR5_RS_SHIFT;

+ trace_tulip_rx_state(tulip_rx_state_name(state));

+}

+

+static uint16_t tulip_mdi_default[] = {

+ /* MDI Registers 0 - 6, 7 */

+ 0x3100, 0xf02c, 0x7810, 0x0000, 0x0501, 0x4181, 0x0000, 0x0000,

+ /* MDI Registers 8 - 15 */

+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,

+ /* MDI Registers 16 - 31 */

+ 0x0003, 0x0000, 0x0001, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,

+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,

+};

+

+/* Readonly mask for MDI (PHY) registers */

+static const uint16_t tulip_mdi_mask[] = {

+ 0x0000, 0xffff, 0xffff, 0xffff, 0xc01f, 0xffff, 0xffff, 0x0000,

+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,

+ 0x0fff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,

+ 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,

+};

+

+static uint16_t tulip_mii_read(TULIPState *s, int phy, int reg)

+{

+ uint16_t ret = 0;

+ if (phy == 1) {

+ ret = tulip_mdi_default[reg];

+ }

+ trace_tulip_mii_read(phy, reg, ret);

+ return ret;

+}

+

+static void tulip_mii_write(TULIPState *s, int phy, int reg, uint16_t data)

+{

+ trace_tulip_mii_write(phy, reg, data);

+

+ if (phy != 1) {

+ return;

+ }

+

+ tulip_mdi_default[reg] &= ~tulip_mdi_mask[reg];

+ tulip_mdi_default[reg] |= (data & tulip_mdi_mask[reg]);

+}

+

+static void tulip_mii(TULIPState *s)

+{

+ uint32_t changed = s->old_csr9 ^ s->csr[9];

+ uint16_t data;

+ int op, phy, reg;

+

+ if (!(changed & CSR9_MDC)) {

+ return;

+ }

+

+ if (!(s->csr[9] & CSR9_MDC)) {

+ return;

+ }

+

+ s->mii_bitcnt++;

+ s->mii_word <<= 1;

+

+ if (s->csr[9] & CSR9_MDO && (s->mii_bitcnt < 16 ||

+ !(s->csr[9] & CSR9_MII))) {

+ /* write op or address bits */

+ s->mii_word |= 1;

+ }

+

+ if (s->mii_bitcnt >= 16 && (s->csr[9] & CSR9_MII)) {

+ if (s->mii_word & 0x8000) {

+ s->csr[9] |= CSR9_MDI;

+ } else {

+ s->csr[9] &= ~CSR9_MDI;

+ }

+ }

+

+ if (s->mii_word == 0xffffffff) {

+ s->mii_bitcnt = 0;

+ } else if (s->mii_bitcnt == 16) {

+ op = (s->mii_word >> 12) & 0x0f;

+ phy = (s->mii_word >> 7) & 0x1f;

+ reg = (s->mii_word >> 2) & 0x1f;

+

+ if (op == 6) {

+ s->mii_word = tulip_mii_read(s, phy, reg);

+ }

+ } else if (s->mii_bitcnt == 32) {

+ op = (s->mii_word >> 28) & 0x0f;

+ phy = (s->mii_word >> 23) & 0x1f;

+ reg = (s->mii_word >> 18) & 0x1f;

+ data = s->mii_word & 0xffff;

+

+ if (op == 5) {

+ tulip_mii_write(s, phy, reg, data);

+ }

+ }

+}

+

+static uint32_t tulip_csr9_read(TULIPState *s)

+{

+ if (s->csr[9] & CSR9_SR) {

+ if (eeprom93xx_read(s->eeprom)) {

+ s->csr[9] |= CSR9_SR_DO;

+ } else {

+ s->csr[9] &= ~CSR9_SR_DO;

+ }

+ }

+

+ tulip_mii(s);

+ return s->csr[9];

+}

+

+static void tulip_update_ts(TULIPState *s, int state)

+{

+ s->csr[5] &= ~(CSR5_TS_MASK << CSR5_TS_SHIFT);

+ s->csr[5] |= (state & CSR5_TS_MASK) << CSR5_TS_SHIFT;

+ trace_tulip_tx_state(tulip_tx_state_name(state));

+}

+

+static uint64_t tulip_read(void *opaque, hwaddr addr,

+ unsigned size)

+{

+ TULIPState *s = opaque;

+ uint64_t data = 0;

+

+ switch (addr) {

+ case CSR(9):

+ data = tulip_csr9_read(s);

+ break;

+

+ case CSR(12):

+ /* Fake autocompletion complete until we have PHY emulation */

+ data = 5 << CSR12_ANS_SHIFT;

+ break;

+

+ default:

+ if (addr & 7) {

+ qemu_log_mask(LOG_GUEST_ERROR, "%s: read access at unknown address"

+ " 0x%"PRIx64"\n", __func__, addr);

+ } else {

+ data = s->csr[addr >> 3];

+ }

+ break;

+ }

+ trace_tulip_reg_read(addr, tulip_reg_name(addr), size, data);

+ return data;

+}

+

+static void tulip_tx(TULIPState *s, struct tulip_descriptor *desc)

+{

+ if (s->tx_frame_len) {

+ if ((s->csr[6] >> CSR6_OM_SHIFT) & CSR6_OM_MASK) {

+ /* Internal or external Loopback */

+ tulip_receive(s, s->tx_frame, s->tx_frame_len);

+ } else {

+ qemu_send_packet(qemu_get_queue(s->nic),

+ s->tx_frame, s->tx_frame_len);

+ }

+ }

+

+ if (desc->control & TDES1_IC) {

+ s->csr[5] |= CSR5_TI;

+ tulip_update_int(s);

+ }

+}

+

+static void tulip_copy_tx_buffers(TULIPState *s, struct tulip_descriptor *desc)

+{

+ int len1 = (desc->control >> TDES1_BUF1_SIZE_SHIFT) & TDES1_BUF1_SIZE_MASK;

+ int len2 = (desc->control >> TDES1_BUF2_SIZE_SHIFT) & TDES1_BUF2_SIZE_MASK;

+

+ if (len1) {

+ pci_dma_read(&s->dev, desc->buf_addr1,

+ s->tx_frame + s->tx_frame_len, len1);

+ s->tx_frame_len += len1;

+ }

+

+ if (len2) {

+ pci_dma_read(&s->dev, desc->buf_addr2,

+ s->tx_frame + s->tx_frame_len, len2);

+ s->tx_frame_len += len2;

+ }

+ desc->status = (len1 + len2) ? 0 : 0x7fffffff;

+}

+

+static void tulip_setup_filter_addr(TULIPState *s, uint8_t *buf, int n)

+{

+ int offset = n * 12;

+

+ s->filter[n][0] = buf[offset];

+ s->filter[n][1] = buf[offset + 1];

+

+ s->filter[n][2] = buf[offset + 4];

+ s->filter[n][3] = buf[offset + 5];

+

+ s->filter[n][4] = buf[offset + 8];

+ s->filter[n][5] = buf[offset + 9];

+

+ trace_tulip_setup_filter(n, s->filter[n][5], s->filter[n][4],

+ s->filter[n][3], s->filter[n][2], s->filter[n][1], s->filter[n][0]);

+}

+

+static void tulip_setup_frame(TULIPState *s,

+ struct tulip_descriptor *desc)

+{

+ uint8_t buf[4096];

+ int len = (desc->control >> TDES1_BUF1_SIZE_SHIFT) & TDES1_BUF1_SIZE_MASK;

+ int i;

+

+ trace_tulip_setup_frame();

+

+ if (len == 192) {

+ pci_dma_read(&s->dev, desc->buf_addr1, buf, len);

+ for (i = 0; i < 16; i++) {

+ tulip_setup_filter_addr(s, buf, i);

+ }

+ }

+

+ desc->status = 0x7fffffff;

+

+ if (desc->control & TDES1_IC) {

+ s->csr[5] |= CSR5_TI;