#define PCI_FREQUENCY 33000000L
-/* debug RTL8139 card C+ mode only */
-//#define DEBUG_RTL8139CP 1
-
#define SET_MASKED(input, mask, curr) \
( ( (input) & ~(mask) ) | ( (curr) & (mask) ) )
PCIErr = 0x8000,
PCSTimeout = 0x4000,
RxFIFOOver = 0x40,
- RxUnderrun = 0x20,
+ RxUnderrun = 0x20, /* Packet Underrun / Link Change */
RxOverflow = 0x10,
TxErr = 0x08,
TxOK = 0x04,
};
enum Cfg9346Bits {
- Cfg9346_Lock = 0x00,
- Cfg9346_Unlock = 0xC0,
+ Cfg9346_Normal = 0x00,
+ Cfg9346_Autoload = 0x40,
+ Cfg9346_Programming = 0x80,
+ Cfg9346_ConfigWrite = 0xC0,
};
typedef enum {
qemu_set_irq(s->dev.irq[0], (isr != 0));
}
-#define POLYNOMIAL 0x04c11db6
-
-/* From FreeBSD */
-/* XXX: optimize */
-static int 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 >> 26);
-}
-
static int rtl8139_RxWrap(RTL8139State *s)
{
/* wrapping enabled; assume 1.5k more buffer space if size < 65536 */
#define MIN_BUF_SIZE 60
static inline dma_addr_t rtl8139_addr64(uint32_t low, uint32_t high)
{
-#if TARGET_PHYS_ADDR_BITS > 32
- return low | ((target_phys_addr_t)high << 32);
-#else
- return low;
-#endif
+ return low | ((uint64_t)high << 32);
}
-static int rtl8139_can_receive(VLANClientState *nc)
+/* Workaround for buggy guest driver such as linux who allocates rx
+ * rings after the receiver were enabled. */
+static bool rtl8139_cp_rx_valid(RTL8139State *s)
+{
+ return !(s->RxRingAddrLO == 0 && s->RxRingAddrHI == 0);
+}
+
+static int rtl8139_can_receive(NetClientState *nc)
{
RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
int avail;
if (!rtl8139_receiver_enabled(s))
return 1;
- if (rtl8139_cp_receiver_enabled(s)) {
+ if (rtl8139_cp_receiver_enabled(s) && rtl8139_cp_rx_valid(s)) {
/* ??? Flow control not implemented in c+ mode.
This is a hack to work around slirp deficiencies anyway. */
return 1;
} else {
avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr,
s->RxBufferSize);
- return (avail == 0 || avail >= 1514);
+ return (avail == 0 || avail >= 1514 || (s->IntrMask & RxOverflow));
}
}
-static ssize_t rtl8139_do_receive(VLANClientState *nc, const uint8_t *buf, size_t size_, int do_interrupt)
+static ssize_t rtl8139_do_receive(NetClientState *nc, const uint8_t *buf, size_t size_, int do_interrupt)
{
RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
/* size is the length of the buffer passed to the driver */
if (rtl8139_cp_receiver_enabled(s))
{
+ if (!rtl8139_cp_rx_valid(s)) {
+ return size;
+ }
+
DPRINTF("in C+ Rx mode ================\n");
/* begin C+ receiver mode */
return size_;
}
-static ssize_t rtl8139_receive(VLANClientState *nc, const uint8_t *buf, size_t size)
+static ssize_t rtl8139_receive(NetClientState *nc, const uint8_t *buf, size_t size)
{
return rtl8139_do_receive(nc, buf, size, 1);
}
static int rtl8139_config_writable(RTL8139State *s)
{
- if (s->Cfg9346 & Cfg9346_Unlock)
+ if ((s->Cfg9346 & Chip9346_op_mask) == Cfg9346_ConfigWrite)
{
return 1;
}
if (iov) {
buf2_size = iov_size(iov, 3);
buf2 = g_malloc(buf2_size);
- iov_to_buf(iov, 3, buf2, 0, buf2_size);
+ iov_to_buf(iov, 3, 0, buf2, buf2_size);
buf = buf2;
}
s->cplus_txbuffer_len);
}
- while (s->cplus_txbuffer && s->cplus_txbuffer_offset + txsize >= s->cplus_txbuffer_len)
+ if (s->cplus_txbuffer_offset + txsize >= s->cplus_txbuffer_len)
{
- s->cplus_txbuffer_len += CP_TX_BUFFER_SIZE;
- s->cplus_txbuffer = g_realloc(s->cplus_txbuffer, s->cplus_txbuffer_len);
-
- DPRINTF("+++ C+ mode transmission buffer space changed to %d\n",
- s->cplus_txbuffer_len);
+ /* The spec didn't tell the maximum size, stick to CP_TX_BUFFER_SIZE */
+ txsize = s->cplus_txbuffer_len - s->cplus_txbuffer_offset;
+ DPRINTF("+++ C+ mode transmission buffer overrun, truncated descriptor"
+ "length to %d\n", txsize);
}
if (!s->cplus_txbuffer)
if (descriptor == 0 && (val & 0x8))
{
- target_phys_addr_t tc_addr = rtl8139_addr64(s->TxStatus[0] & ~0x3f, s->TxStatus[1]);
+ hwaddr tc_addr = rtl8139_addr64(s->TxStatus[0] & ~0x3f, s->TxStatus[1]);
/* dump tally counters to specified memory location */
RTL8139TallyCounters_dma_write(s, tc_addr);
rtl8139_transmit(s);
}
-static uint32_t rtl8139_TxStatus_read(RTL8139State *s, uint32_t txRegOffset)
+static uint32_t rtl8139_TxStatus_TxAddr_read(RTL8139State *s, uint32_t regs[],
+ uint32_t base, uint8_t addr,
+ int size)
{
- uint32_t ret = s->TxStatus[txRegOffset/4];
+ uint32_t reg = (addr - base) / 4;
+ uint32_t offset = addr & 0x3;
+ uint32_t ret = 0;
- DPRINTF("TxStatus read offset=0x%x val=0x%08x\n", txRegOffset, ret);
+ if (addr & (size - 1)) {
+ DPRINTF("not implemented read for TxStatus/TxAddr "
+ "addr=0x%x size=0x%x\n", addr, size);
+ return ret;
+ }
+
+ switch (size) {
+ case 1: /* fall through */
+ case 2: /* fall through */
+ case 4:
+ ret = (regs[reg] >> offset * 8) & (((uint64_t)1 << (size * 8)) - 1);
+ DPRINTF("TxStatus/TxAddr[%d] read addr=0x%x size=0x%x val=0x%08x\n",
+ reg, addr, size, ret);
+ break;
+ default:
+ DPRINTF("unsupported size 0x%x of TxStatus/TxAddr reading\n", size);
+ break;
+ }
return ret;
}
case MAR0 ... MAR0+7:
ret = s->mult[addr - MAR0];
break;
+ case TxStatus0 ... TxStatus0+4*4-1:
+ ret = rtl8139_TxStatus_TxAddr_read(s, s->TxStatus, TxStatus0,
+ addr, 1);
+ break;
case ChipCmd:
ret = rtl8139_ChipCmd_read(s);
break;
break;
case MediaStatus:
- ret = 0xd0;
+ /* The LinkDown bit of MediaStatus is inverse with link status */
+ ret = 0xd0 | (~s->BasicModeStatus & 0x04);
DPRINTF("MediaStatus read 0x%x\n", ret);
break;
switch (addr)
{
+ case TxAddr0 ... TxAddr0+4*4-1:
+ ret = rtl8139_TxStatus_TxAddr_read(s, s->TxAddr, TxAddr0, addr, 2);
+ break;
case IntrMask:
ret = rtl8139_IntrMask_read(s);
break;
break;
case TxStatus0 ... TxStatus0+4*4-1:
- ret = rtl8139_TxStatus_read(s, addr-TxStatus0);
+ ret = rtl8139_TxStatus_TxAddr_read(s, s->TxStatus, TxStatus0,
+ addr, 4);
break;
case TxAddr0 ... TxAddr0+4*4-1:
/* */
-static void rtl8139_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+static void rtl8139_mmio_writeb(void *opaque, hwaddr addr, uint32_t val)
{
rtl8139_io_writeb(opaque, addr & 0xFF, val);
}
-static void rtl8139_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
+static void rtl8139_mmio_writew(void *opaque, hwaddr addr, uint32_t val)
{
rtl8139_io_writew(opaque, addr & 0xFF, val);
}
-static void rtl8139_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
+static void rtl8139_mmio_writel(void *opaque, hwaddr addr, uint32_t val)
{
rtl8139_io_writel(opaque, addr & 0xFF, val);
}
-static uint32_t rtl8139_mmio_readb(void *opaque, target_phys_addr_t addr)
+static uint32_t rtl8139_mmio_readb(void *opaque, hwaddr addr)
{
return rtl8139_io_readb(opaque, addr & 0xFF);
}
-static uint32_t rtl8139_mmio_readw(void *opaque, target_phys_addr_t addr)
+static uint32_t rtl8139_mmio_readw(void *opaque, hwaddr addr)
{
uint32_t val = rtl8139_io_readw(opaque, addr & 0xFF);
return val;
}
-static uint32_t rtl8139_mmio_readl(void *opaque, target_phys_addr_t addr)
+static uint32_t rtl8139_mmio_readl(void *opaque, hwaddr addr)
{
uint32_t val = rtl8139_io_readl(opaque, addr & 0xFF);
return val;
s->cplus_enabled = s->CpCmd != 0;
}
+ /* nc.link_down can't be migrated, so infer link_down according
+ * to link status bit in BasicModeStatus */
+ s->nic->nc.link_down = (s->BasicModeStatus & 0x04) == 0;
+
return 0;
}
rtl8139_set_next_tctr_time(s, qemu_get_clock_ns(vm_clock));
}
-static void rtl8139_cleanup(VLANClientState *nc)
+static void rtl8139_cleanup(NetClientState *nc)
{
RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
s->nic = NULL;
}
-static int pci_rtl8139_uninit(PCIDevice *dev)
+static void pci_rtl8139_uninit(PCIDevice *dev)
{
RTL8139State *s = DO_UPCAST(RTL8139State, dev, dev);
}
qemu_del_timer(s->timer);
qemu_free_timer(s->timer);
- qemu_del_vlan_client(&s->nic->nc);
- return 0;
+ qemu_del_net_client(&s->nic->nc);
+}
+
+static void rtl8139_set_link_status(NetClientState *nc)
+{
+ RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
+
+ if (nc->link_down) {
+ s->BasicModeStatus &= ~0x04;
+ } else {
+ s->BasicModeStatus |= 0x04;
+ }
+
+ s->IntrStatus |= RxUnderrun;
+ rtl8139_update_irq(s);
}
static NetClientInfo net_rtl8139_info = {
- .type = NET_CLIENT_TYPE_NIC,
+ .type = NET_CLIENT_OPTIONS_KIND_NIC,
.size = sizeof(NICState),
.can_receive = rtl8139_can_receive,
.receive = rtl8139_receive,
.cleanup = rtl8139_cleanup,
+ .link_status_changed = rtl8139_set_link_status,
};
static int pci_rtl8139_init(PCIDevice *dev)
projects / mirror_qemu.git / blobdiff