* * Wake-on-LAN is not implemented.
*/
-#include <stddef.h> /* offsetof */
+#include "qemu/osdep.h"
+#include "qemu/units.h"
#include "hw/hw.h"
#include "hw/pci/pci.h"
#include "net/net.h"
+#include "net/eth.h"
#include "hw/nvram/eeprom93xx.h"
#include "sysemu/sysemu.h"
#include "sysemu/dma.h"
#include "qemu/bitops.h"
+#include "qapi/error.h"
/* QEMU sends frames smaller than 60 bytes to ethernet nics.
* Such frames are rejected by real nics and their emulations.
* changed to pad short packets itself. */
#define CONFIG_PAD_RECEIVED_FRAMES
-#define KiB 1024
-
/* Debug EEPRO100 card. */
#if 0
# define DEBUG_EEPRO100
0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
};
-#define POLYNOMIAL 0x04c11db6
-
static E100PCIDeviceInfo *eepro100_get_class(EEPRO100State *s);
-/* From FreeBSD (locally modified). */
-static unsigned e100_compute_mcast_idx(const uint8_t *ep)
-{
- uint32_t crc;
- int carry, i, j;
- uint8_t b;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- b = *ep++;
- for (j = 0; j < 8; j++) {
- carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
- crc <<= 1;
- b >>= 1;
- if (carry) {
- crc = ((crc ^ POLYNOMIAL) | carry);
- }
- }
- }
- return (crc & BITS(7, 2)) >> 2;
-}
-
/* Read a 16 bit control/status (CSR) register. */
static uint16_t e100_read_reg2(EEPRO100State *s, E100RegisterOffset addr)
{
assert(!((uintptr_t)&s->mem[addr] & 1));
- return le16_to_cpup((uint16_t *)&s->mem[addr]);
+ return lduw_le_p(&s->mem[addr]);
}
/* Read a 32 bit control/status (CSR) register. */
static uint32_t e100_read_reg4(EEPRO100State *s, E100RegisterOffset addr)
{
assert(!((uintptr_t)&s->mem[addr] & 3));
- return le32_to_cpup((uint32_t *)&s->mem[addr]);
+ return ldl_le_p(&s->mem[addr]);
}
/* Write a 16 bit control/status (CSR) register. */
uint16_t val)
{
assert(!((uintptr_t)&s->mem[addr] & 1));
- cpu_to_le16w((uint16_t *)&s->mem[addr], val);
+ stw_le_p(&s->mem[addr], val);
}
/* Read a 32 bit control/status (CSR) register. */
uint32_t val)
{
assert(!((uintptr_t)&s->mem[addr] & 3));
- cpu_to_le32w((uint32_t *)&s->mem[addr], val);
+ stl_le_p(&s->mem[addr], val);
}
#if defined(DEBUG_EEPRO100)
}
#endif
-static void e100_pci_reset(EEPRO100State * s)
+static void e100_pci_reset(EEPRO100State *s, Error **errp)
{
E100PCIDeviceInfo *info = eepro100_get_class(s);
uint32_t device = s->device;
/* Power Management Capabilities */
int cfg_offset = 0xdc;
int r = pci_add_capability(&s->dev, PCI_CAP_ID_PM,
- cfg_offset, PCI_PM_SIZEOF);
- assert(r >= 0);
+ cfg_offset, PCI_PM_SIZEOF,
+ errp);
+ if (r < 0) {
+ return;
+ }
+
pci_set_word(pci_conf + cfg_offset + PCI_PM_PMC, 0x7e21);
#if 0 /* TODO: replace dummy code for power management emulation. */
/* TODO: Power Management Control / Status. */
static void tx_command(EEPRO100State *s)
{
- uint32_t tbd_array = le32_to_cpu(s->tx.tbd_array_addr);
- uint16_t tcb_bytes = (le16_to_cpu(s->tx.tcb_bytes) & 0x3fff);
+ uint32_t tbd_array = s->tx.tbd_array_addr;
+ uint16_t tcb_bytes = s->tx.tcb_bytes & 0x3fff;
/* Sends larger than MAX_ETH_FRAME_SIZE are allowed, up to 2600 bytes. */
uint8_t buf[2600];
uint16_t size = 0;
}
assert(tcb_bytes <= sizeof(buf));
while (size < tcb_bytes) {
- uint32_t tx_buffer_address = ldl_le_pci_dma(&s->dev, tbd_address);
- uint16_t tx_buffer_size = lduw_le_pci_dma(&s->dev, tbd_address + 4);
-#if 0
- uint16_t tx_buffer_el = lduw_le_pci_dma(&s->dev, tbd_address + 6);
-#endif
- tbd_address += 8;
TRACE(RXTX, logout
("TBD (simplified mode): buffer address 0x%08x, size 0x%04x\n",
- tx_buffer_address, tx_buffer_size));
- tx_buffer_size = MIN(tx_buffer_size, sizeof(buf) - size);
- pci_dma_read(&s->dev, tx_buffer_address, &buf[size], tx_buffer_size);
- size += tx_buffer_size;
+ tbd_address, tcb_bytes));
+ pci_dma_read(&s->dev, tbd_address, &buf[size], tcb_bytes);
+ size += tcb_bytes;
}
if (tbd_array == 0xffffffff) {
/* Simplified mode. Was already handled by code above. */
uint8_t multicast_addr[6];
pci_dma_read(&s->dev, s->cb_address + 10 + i, multicast_addr, 6);
TRACE(OTHER, logout("multicast entry %s\n", nic_dump(multicast_addr, 6)));
- unsigned mcast_idx = e100_compute_mcast_idx(multicast_addr);
+ unsigned mcast_idx = (net_crc32(multicast_addr, ETH_ALEN) &
+ BITS(7, 2)) >> 2;
assert(mcast_idx < 64);
s->mult[mcast_idx >> 3] |= (1 << (mcast_idx & 7));
}
static void action_command(EEPRO100State *s)
{
+ /* The loop below won't stop if it gets special handcrafted data.
+ Therefore we limit the number of iterations. */
+ unsigned max_loop_count = 16;
+
for (;;) {
bool bit_el;
bool bit_s;
#if 0
bool bit_sf = ((s->tx.command & COMMAND_SF) != 0);
#endif
+
+ if (max_loop_count-- == 0) {
+ /* Prevent an endless loop. */
+ logout("loop in %s:%u\n", __FILE__, __LINE__);
+ break;
+ }
+
s->cu_offset = s->tx.link;
TRACE(OTHER,
logout("val=(cu start), status=0x%04x, command=0x%04x, link=0x%08x\n",
.endianness = DEVICE_LITTLE_ENDIAN,
};
-static int nic_can_receive(NetClientState *nc)
-{
- EEPRO100State *s = qemu_get_nic_opaque(nc);
- TRACE(RXTX, logout("%p\n", s));
- return get_ru_state(s) == ru_ready;
-#if 0
- return !eepro100_buffer_full(s);
-#endif
-}
-
static ssize_t nic_receive(NetClientState *nc, const uint8_t * buf, size_t size)
{
/* TODO:
if (s->configuration[21] & BIT(3)) {
/* Multicast all bit is set, receive all multicast frames. */
} else {
- unsigned mcast_idx = e100_compute_mcast_idx(buf);
+ unsigned mcast_idx = (net_crc32(buf, ETH_ALEN) & BITS(7, 2)) >> 2;
assert(mcast_idx < 64);
if (s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))) {
/* Multicast frame is allowed in hash table. */
rfd_status |= 0x0004;
} else if (s->configuration[20] & BIT(6)) {
/* Multiple IA bit set. */
- unsigned mcast_idx = compute_mcast_idx(buf);
+ unsigned mcast_idx = net_crc32(buf, ETH_ALEN) >> 26;
assert(mcast_idx < 64);
if (s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))) {
TRACE(RXTX, logout("%p accepted, multiple IA bit set\n", s));
}
};
-static void nic_cleanup(NetClientState *nc)
-{
- EEPRO100State *s = qemu_get_nic_opaque(nc);
-
- s->nic = NULL;
-}
-
static void pci_nic_uninit(PCIDevice *pci_dev)
{
EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev);
- memory_region_destroy(&s->mmio_bar);
- memory_region_destroy(&s->io_bar);
- memory_region_destroy(&s->flash_bar);
vmstate_unregister(&pci_dev->qdev, s->vmstate, s);
+ g_free(s->vmstate);
eeprom93xx_free(&pci_dev->qdev, s->eeprom);
qemu_del_nic(s->nic);
}
static NetClientInfo net_eepro100_info = {
- .type = NET_CLIENT_OPTIONS_KIND_NIC,
+ .type = NET_CLIENT_DRIVER_NIC,
.size = sizeof(NICState),
- .can_receive = nic_can_receive,
.receive = nic_receive,
- .cleanup = nic_cleanup,
};
-static int e100_nic_init(PCIDevice *pci_dev)
+static void e100_nic_realize(PCIDevice *pci_dev, Error **errp)
{
EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev);
E100PCIDeviceInfo *info = eepro100_get_class(s);
+ Error *local_err = NULL;
TRACE(OTHER, logout("\n"));
s->device = info->device;
- e100_pci_reset(s);
+ e100_pci_reset(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
/* Add 64 * 2 EEPROM. i82557 and i82558 support a 64 word EEPROM,
* i82559 and later support 64 or 256 word EEPROM. */
qemu_register_reset(nic_reset, s);
- s->vmstate = g_malloc(sizeof(vmstate_eepro100));
- memcpy(s->vmstate, &vmstate_eepro100, sizeof(vmstate_eepro100));
+ s->vmstate = g_memdup(&vmstate_eepro100, sizeof(vmstate_eepro100));
s->vmstate->name = qemu_get_queue(s->nic)->model;
vmstate_register(&pci_dev->qdev, -1, s->vmstate, s);
+}
- add_boot_device_path(s->conf.bootindex, &pci_dev->qdev, "/ethernet-phy@0");
-
- return 0;
+static void eepro100_instance_init(Object *obj)
+{
+ EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, PCI_DEVICE(obj));
+ device_add_bootindex_property(obj, &s->conf.bootindex,
+ "bootindex", "/ethernet-phy@0",
+ DEVICE(s), NULL);
}
static E100PCIDeviceInfo e100_devices[] = {
k->vendor_id = PCI_VENDOR_ID_INTEL;
k->class_id = PCI_CLASS_NETWORK_ETHERNET;
k->romfile = "pxe-eepro100.rom";
- k->init = e100_nic_init;
+ k->realize = e100_nic_realize;
k->exit = pci_nic_uninit;
k->device_id = info->device_id;
k->revision = info->revision;
type_info.parent = TYPE_PCI_DEVICE;
type_info.class_init = eepro100_class_init;
type_info.instance_size = sizeof(EEPRO100State);
-
+ type_info.instance_init = eepro100_instance_init;
+ type_info.interfaces = (InterfaceInfo[]) {
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { },
+ };
+
type_register(&type_info);
}
}
projects / qemu.git / blobdiff