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Survives 16-20 packets. Appears to be ok on TX buffer management.

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Problem appears to be on the RX buffer initialization side.
This commit is contained in:
Joel Sherrill
1998-08-10 23:20:25 +00:00
parent 0cac61eaf5
commit 339737bad7
1 changed files with 16 additions and 11 deletions
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27
c/src/lib/libbsp/powerpc/dmv177/sonic/sonic.c
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@@ -476,6 +476,11 @@ printf( "retire TDA %p (0x%04x)\n", dp->tdaTail, status );
dp->tdaActiveCount--;
free_p ((struct mbuf **)&dp->tdaTail->mbufp);
/* XXX this does not help when you wrap
dp->tdaTail->frag_count = 1;
dp->tdaTail->frag[0].frag_link = LSW(dp->tdaTail->link_pad);
*/
/*
* Move to the next transmit descriptor
*/
@@ -639,6 +644,7 @@ puts( "Wait for more TDAs" );
/*
* Chain onto list and start transmission.
*/
tdp->linkp = &(fp+1)->frag_link;
*tdp->linkp = LSW(tdp->next) | TDA_LINK_EOL;
*dp->tdaHead->linkp &= ~TDA_LINK_EOL;
@@ -956,7 +962,7 @@ SONIC_STATIC void sonic_initialize_hardware(
int i;
unsigned char *hwaddr;
rtems_isr_entry old_handler;
TransmitDescriptorPointer_t otdp, tdp;
TransmitDescriptorPointer_t tdp;
ReceiveDescriptorPointer_t ordp, rdp;
ReceiveResourcePointer_t rwp, rea;
struct mbuf *bp;
@@ -987,14 +993,14 @@ SONIC_STATIC void sonic_initialize_hardware(
#if (SONIC_DEBUG & SONIC_DEBUG_MEMORY)
printf( "tdaTail = %p\n", dp->tdaTail );
#endif
otdp = tdp = dp->tdaTail;
tdp = dp->tdaTail;
for (i = 0 ; i < dp->tdaCount ; i++) {
/*
* status, pkt_config, pkt_size, and all fragment fields
* are set to zero by sonic_allocate.
*/
/* XXX not used by other drivers
/* XXX not used by other drivers we looked at
if (i & 1)
tdp->pkt_config = TDA_CONFIG_PINT;
*/
@@ -1002,20 +1008,19 @@ SONIC_STATIC void sonic_initialize_hardware(
tdp->frag_count = 1;
tdp->frag[0].frag_link = LSW(tdp + 1);
tdp->link_pad = LSW(tdp + 1) | TDA_LINK_EOL;
otdp->linkp = &((tdp + 1)->frag[0].frag_link);
tdp->linkp = &((tdp + 1)->frag[0].frag_link);
tdp->next = (TransmitDescriptor_t *)(tdp + 1);
otdp = tdp;
tdp++;
}
dp->tdaHead = otdp; /* XXX why? */
otdp->link_pad = LSW(dp->tdaTail) | TDA_LINK_EOL;
otdp->next = (TransmitDescriptor_t *)dp->tdaTail;
otdp->linkp = &dp->tdaHead->frag[0].frag_link;
tdp--;
dp->tdaHead = tdp;
tdp->link_pad = LSW(dp->tdaTail) | TDA_LINK_EOL;
tdp->next = (TransmitDescriptor_t *)dp->tdaTail;
tdp->linkp = &dp->tdaTail->frag[0].frag_link;
/*
* Set up circular linked list in Receive Descriptor Area.
* Leaves ordp pointing at the `end' of the list and
* dp->rda pointing at the `beginning' of the list.
* Leaves dp->rda pointing at the `beginning' of the list.
*
* NOTE: The RDA and CDP must have the same MSW for their addresses.
*/