Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging

[qemu.git] / hw / net / pcnet.c

diff --git a/hw/net/pcnet.c b/hw/net/pcnet.c
index 8486b80bb7f3eb750ac3f22b79cce16703d0d9e6..34373767d9dc55311bd9d3f5cebbc404fd39006d 100644 (file)
--- a/hw/net/pcnet.c
+++ b/hw/net/pcnet.c
@@ -40,6 +40,7 @@
 #include "qemu/timer.h"
 #include "qemu/sockets.h"
 #include "sysemu/sysemu.h"
+#include "trace.h"
 
 #include "pcnet.h"
 
@@ -685,9 +686,7 @@ static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val);
 
 static void pcnet_s_reset(PCNetState *s)
 {
-#ifdef PCNET_DEBUG
-    printf("pcnet_s_reset\n");
-#endif
+    trace_pcnet_s_reset(s);
 
     s->rdra = 0;
     s->tdra = 0;
@@ -760,9 +759,7 @@ static void pcnet_update_irq(PCNetState *s)
         s->csr[4] |= 0x0040;
         s->csr[0] |= 0x0080;
         isr = 1;
-#ifdef PCNET_DEBUG
-        printf("pcnet user int\n");
-#endif
+        trace_pcnet_user_int(s);
     }
 
 #if 1
@@ -777,9 +774,7 @@ static void pcnet_update_irq(PCNetState *s)
     }
 
     if (isr != s->isr) {
-#ifdef PCNET_DEBUG
-        printf("pcnet: INTA=%d\n", isr);
-#endif
+        trace_pcnet_isr_change(s, isr, s->isr);
     }
     qemu_set_irq(s->irq, isr);
     s->isr = isr;
@@ -791,9 +786,7 @@ static void pcnet_init(PCNetState *s)
     uint16_t padr[3], ladrf[4], mode;
     uint32_t rdra, tdra;
 
-#ifdef PCNET_DEBUG
-    printf("pcnet_init init_addr=0x%08x\n", PHYSADDR(s,CSR_IADR(s)));
-#endif
+    trace_pcnet_init(s, PHYSADDR(s, CSR_IADR(s)));
 
     if (BCR_SSIZE32(s)) {
         struct pcnet_initblk32 initblk;
@@ -831,9 +824,7 @@ static void pcnet_init(PCNetState *s)
         tdra &= 0x00ffffff;
     }
 
-#if defined(PCNET_DEBUG)
-    printf("rlen=%d tlen=%d\n", rlen, tlen);
-#endif
+    trace_pcnet_rlen_tlen(s, rlen, tlen);
 
     CSR_RCVRL(s) = (rlen < 9) ? (1 << rlen) : 512;
     CSR_XMTRL(s) = (tlen < 9) ? (1 << tlen) : 512;
@@ -852,11 +843,8 @@ static void pcnet_init(PCNetState *s)
     CSR_RCVRC(s) = CSR_RCVRL(s);
     CSR_XMTRC(s) = CSR_XMTRL(s);
 
-#ifdef PCNET_DEBUG
-    printf("pcnet ss32=%d rdra=0x%08x[%d] tdra=0x%08x[%d]\n",
-        BCR_SSIZE32(s),
-        s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s));
-#endif
+    trace_pcnet_ss32_rdra_tdra(s, BCR_SSIZE32(s),
+                               s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s));
 
     s->csr[0] |= 0x0101;
     s->csr[0] &= ~0x0004;       /* clear STOP bit */
@@ -1007,15 +995,6 @@ static int pcnet_tdte_poll(PCNetState *s)
     return !!(CSR_CXST(s) & 0x8000);
 }
 
-int pcnet_can_receive(NetClientState *nc)
-{
-    PCNetState *s = qemu_get_nic_opaque(nc);
-    if (CSR_STOP(s) || CSR_SPND(s))
-        return 0;
-
-    return sizeof(s->buffer)-16;
-}
-
 #define MIN_BUF_SIZE 60
 
 ssize_t pcnet_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
@@ -1253,6 +1232,14 @@ static void pcnet_transmit(PCNetState *s)
         }
 
         bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
+
+        /* if multi-tmd packet outsizes s->buffer then skip it silently.
+           Note: this is not what real hw does */
+        if (s->xmit_pos + bcnt > sizeof(s->buffer)) {
+            s->xmit_pos = -1;
+            goto txdone;
+        }
+
         s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
                          s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
         s->xmit_pos += bcnt;
@@ -1724,7 +1711,7 @@ const VMStateDescription vmstate_pcnet = {
     }
 };
 
-int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
+void pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
 {
     int i;
     uint16_t checksum;
@@ -1763,6 +1750,4 @@ int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
     *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
 
     s->lnkst = 0x40; /* initial link state: up */
-
-    return 0;
 }