#include "pci.h"
#include "net.h"
#include "qemu-timer.h"
+#include "qemu_socket.h"
//#define PCNET_DEBUG
//#define PCNET_DEBUG_IO
#define PCNET_IOPORT_SIZE 0x20
#define PCNET_PNPMMIO_SIZE 0x20
+#define PCNET_LOOPTEST_CRC 1
+#define PCNET_LOOPTEST_NOCRC 2
+
typedef struct PCNetState_st PCNetState;
void (*phys_mem_write)(void *dma_opaque, target_phys_addr_t addr,
uint8_t *buf, int len, int do_bswap);
void *dma_opaque;
+ int looptest;
};
struct qemu_ether_header {
#define CSR_DRX(S) !!(((S)->csr[15])&0x0001)
#define CSR_DTX(S) !!(((S)->csr[15])&0x0002)
#define CSR_LOOP(S) !!(((S)->csr[15])&0x0004)
+#define CSR_DXMTFCS(S) !!(((S)->csr[15])&0x0008)
#define CSR_DRCVPA(S) !!(((S)->csr[15])&0x2000)
#define CSR_DRCVBC(S) !!(((S)->csr[15])&0x4000)
#define CSR_PROM(S) !!(((S)->csr[15])&0x8000)
#define TMDS_LTINT_SH 12
#define TMDS_NOFCS_MASK 0x2000
#define TMDS_NOFCS_SH 13
+#define TMDS_ADDFCS_MASK TMDS_NOFCS_MASK
+#define TMDS_ADDFCS_SH TMDS_NOFCS_SH
#define TMDS_ERR_MASK 0x4000
#define TMDS_ERR_SH 14
#define TMDS_OWN_MASK 0x8000
s->csr[37] = nnrd >> 16;
#ifdef PCNET_DEBUG
if (bad) {
- printf("pcnet: BAD RMD RECORDS AFTER 0x%08x\n",
+ printf("pcnet: BAD RMD RECORDS AFTER 0x" TARGET_FMT_plx "\n",
PHYSADDR(s,crda));
}
} else {
- printf("pcnet: BAD RMD RDA=0x%08x\n", PHYSADDR(s,crda));
+ printf("pcnet: BAD RMD RDA=0x" TARGET_FMT_plx "\n",
+ PHYSADDR(s,crda));
#endif
}
}
PCNetState *s = opaque;
int is_padr = 0, is_bcast = 0, is_ladr = 0;
uint8_t buf1[60];
+ int remaining;
+ int crc_err = 0;
if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size)
return;
s->csr[0] |= 0x1000; /* Set MISS flag */
CSR_MISSC(s)++;
} else {
- uint8_t *src = &s->buffer[8];
+ uint8_t *src = s->buffer;
target_phys_addr_t crda = CSR_CRDA(s);
struct pcnet_RMD rmd;
int pktcount = 0;
- memcpy(src, buf, size);
-
-#if 1
- /* no need to compute the CRC */
- src[size] = 0;
- src[size + 1] = 0;
- src[size + 2] = 0;
- src[size + 3] = 0;
- size += 4;
-#else
- /* XXX: avoid CRC generation */
- if (!CSR_ASTRP_RCV(s)) {
+ if (!s->looptest) {
+ memcpy(src, buf, size);
+ /* no need to compute the CRC */
+ src[size] = 0;
+ src[size + 1] = 0;
+ src[size + 2] = 0;
+ src[size + 3] = 0;
+ size += 4;
+ } else if (s->looptest == PCNET_LOOPTEST_CRC ||
+ !CSR_DXMTFCS(s) || size < MIN_BUF_SIZE+4) {
uint32_t fcs = ~0;
uint8_t *p = src;
- while (size < 46) {
- src[size++] = 0;
- }
+ while (p != &src[size])
+ CRC(fcs, *p++);
+ *(uint32_t *)p = htonl(fcs);
+ size += 4;
+ } else {
+ uint32_t fcs = ~0;
+ uint8_t *p = src;
- while (p != &src[size]) {
+ while (p != &src[size-4])
CRC(fcs, *p++);
- }
- ((uint32_t *)&src[size])[0] = htonl(fcs);
- size += 4; /* FCS at end of packet */
- } else size += 4;
-#endif
+ crc_err = (*(uint32_t *)p != htonl(fcs));
+ }
#ifdef PCNET_DEBUG_MATCH
PRINT_PKTHDR(buf);
SET_FIELD(&rmd.status, RMDS, STP, 1);
#define PCNET_RECV_STORE() do { \
- int count = MIN(4096 - GET_FIELD(rmd.buf_length, RMDL, BCNT),size); \
+ int count = MIN(4096 - GET_FIELD(rmd.buf_length, RMDL, BCNT),remaining); \
target_phys_addr_t rbadr = PHYSADDR(s, rmd.rbadr); \
s->phys_mem_write(s->dma_opaque, rbadr, src, count, CSR_BSWP(s)); \
- src += count; size -= count; \
- SET_FIELD(&rmd.msg_length, RMDM, MCNT, count); \
+ src += count; remaining -= count; \
SET_FIELD(&rmd.status, RMDS, OWN, 0); \
RMDSTORE(&rmd, PHYSADDR(s,crda)); \
pktcount++; \
} while (0)
+ remaining = size;
PCNET_RECV_STORE();
- if ((size > 0) && CSR_NRDA(s)) {
+ if ((remaining > 0) && CSR_NRDA(s)) {
target_phys_addr_t nrda = CSR_NRDA(s);
+#ifdef PCNET_DEBUG_RMD
+ PRINT_RMD(&rmd);
+#endif
RMDLOAD(&rmd, PHYSADDR(s,nrda));
if (GET_FIELD(rmd.status, RMDS, OWN)) {
crda = nrda;
PCNET_RECV_STORE();
- if ((size > 0) && (nrda=CSR_NNRD(s))) {
+#ifdef PCNET_DEBUG_RMD
+ PRINT_RMD(&rmd);
+#endif
+ if ((remaining > 0) && (nrda=CSR_NNRD(s))) {
RMDLOAD(&rmd, PHYSADDR(s,nrda));
if (GET_FIELD(rmd.status, RMDS, OWN)) {
crda = nrda;
#undef PCNET_RECV_STORE
RMDLOAD(&rmd, PHYSADDR(s,crda));
- if (size == 0) {
+ if (remaining == 0) {
+ SET_FIELD(&rmd.msg_length, RMDM, MCNT, size);
SET_FIELD(&rmd.status, RMDS, ENP, 1);
SET_FIELD(&rmd.status, RMDS, PAM, !CSR_PROM(s) && is_padr);
SET_FIELD(&rmd.status, RMDS, LFAM, !CSR_PROM(s) && is_ladr);
SET_FIELD(&rmd.status, RMDS, BAM, !CSR_PROM(s) && is_bcast);
+ if (crc_err) {
+ SET_FIELD(&rmd.status, RMDS, CRC, 1);
+ SET_FIELD(&rmd.status, RMDS, ERR, 1);
+ }
} else {
SET_FIELD(&rmd.status, RMDS, OFLO, 1);
SET_FIELD(&rmd.status, RMDS, BUFF, 1);
{
target_phys_addr_t xmit_cxda = 0;
int count = CSR_XMTRL(s)-1;
+ int add_crc = 0;
+
s->xmit_pos = -1;
if (!CSR_TXON(s)) {
if (GET_FIELD(tmd.status, TMDS, STP)) {
s->xmit_pos = 0;
xmit_cxda = PHYSADDR(s,CSR_CXDA(s));
+ if (BCR_SWSTYLE(s) != 1)
+ add_crc = GET_FIELD(tmd.status, TMDS, ADDFCS);
}
if (!GET_FIELD(tmd.status, TMDS, ENP)) {
int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
#ifdef PCNET_DEBUG
printf("pcnet_transmit size=%d\n", s->xmit_pos);
#endif
- if (CSR_LOOP(s))
+ if (CSR_LOOP(s)) {
+ if (BCR_SWSTYLE(s) == 1)
+ add_crc = !GET_FIELD(tmd.status, TMDS, NOFCS);
+ s->looptest = add_crc ? PCNET_LOOPTEST_CRC : PCNET_LOOPTEST_NOCRC;
pcnet_receive(s, s->buffer, s->xmit_pos);
- else
+ s->looptest = 0;
+ } else
if (s->vc)
qemu_send_packet(s->vc, s->buffer, s->xmit_pos);
{
PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
- printf("pcnet_mmio_writeb addr=0x%08x val=0x%02x\n", addr, val);
+ printf("pcnet_mmio_writeb addr=0x" TARGET_FMT_plx" val=0x%02x\n", addr,
+ val);
#endif
if (!(addr & 0x10))
pcnet_aprom_writeb(d, addr & 0x0f, val);
if (!(addr & 0x10))
val = pcnet_aprom_readb(d, addr & 0x0f);
#ifdef PCNET_DEBUG_IO
- printf("pcnet_mmio_readb addr=0x%08x val=0x%02x\n", addr, val & 0xff);
+ printf("pcnet_mmio_readb addr=0x" TARGET_FMT_plx " val=0x%02x\n", addr,
+ val & 0xff);
#endif
return val;
}
{
PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
- printf("pcnet_mmio_writew addr=0x%08x val=0x%04x\n", addr, val);
+ printf("pcnet_mmio_writew addr=0x" TARGET_FMT_plx " val=0x%04x\n", addr,
+ val);
#endif
if (addr & 0x10)
pcnet_ioport_writew(d, addr & 0x0f, val);
val |= pcnet_aprom_readb(d, addr);
}
#ifdef PCNET_DEBUG_IO
- printf("pcnet_mmio_readw addr=0x%08x val = 0x%04x\n", addr, val & 0xffff);
+ printf("pcnet_mmio_readw addr=0x" TARGET_FMT_plx" val = 0x%04x\n", addr,
+ val & 0xffff);
#endif
return val;
}
{
PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
- printf("pcnet_mmio_writel addr=0x%08x val=0x%08x\n", addr, val);
+ printf("pcnet_mmio_writel addr=0x" TARGET_FMT_plx" val=0x%08x\n", addr,
+ val);
#endif
if (addr & 0x10)
pcnet_ioport_writel(d, addr & 0x0f, val);
val |= pcnet_aprom_readb(d, addr);
}
#ifdef PCNET_DEBUG_IO
- printf("pcnet_mmio_readl addr=0x%08x val=0x%08x\n", addr, val);
+ printf("pcnet_mmio_readl addr=0x" TARGET_FMT_plx " val=0x%08x\n", addr,
+ val);
#endif
return val;
}
projects / qemu / blobdiff