ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 374

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

IBM3206K0424
IBM Processor for Network Resources
Miscellaneous Events
Receive Queues (RXQUE)
Page 374 of 676
0x38=0111000 Virtual Memory Resource Event
0x39=0111001 Buffer Overflow Event
0x3a=0111010
0x3b=0111011
0x3c=0111100
0x3d=0111101
0x3e=0111110 POOLS Status Event
0x5e=1011110 Timestamp Event
0x5f=1011111 64-bit Timestamp Event
Bit(s)
No DMA Desc for AAL7 Packet
Event
DMA Cancelled for AAL7 Packet
Due to Error Event
No Pages Available for AAL5
Scatter Packet
IBM3206K0424 Counter Overflow
Event
(Continued)
Name
This event specifies that an AAL5 cell was received, but could not be written into
the buffer because a virtual memory boundary was crossed and a buffer was not
available to fill in the next segment. This can also happen if the cell crosses a
boundary that would make the buffer larger than the virtual buffer size. The event
information contains either a pointer to the packet if receiving bad frames, or a
pointer to the LCD on which this packet was received.
This event specifies that an AAL5 cell was received, but could not be written into
the buffer because it would exceed the real buffer size. The event information con-
tains either a pointer to the packet if receiving bad frames, or a pointer to the LCD
on which this packet was received.
This event specifies that an AAL7 (AAL5 with cut through) packet was completed,
but no DMA descriptors were available to DMA the packet header. The event infor-
mation contains either a pointer to the packet if receiving bad frames, or a pointer
to the LCD on which this packet was received.
This event specifies that a DMA descriptor enqueued with a cut-through operation
was cancelled because an error condition was detected with the packet (CRC,
length,...). The event information contains the system descriptor address that was
cancelled.
This event specifies that an AAL5 packet completed with no errors, but there was a
lack of scatter buffers to complete the scatter DMA. The user must interrogate the
partial DMA list in the packet header to recover the system pages. Once this is
done, the packet should be freed. The user can alternately treat this as a good
packet and complete the packet processing by setting up additional DMAs to move
the remaining data to system pages. The event information contains the
IBM3206K0424 buffer address.
This event specifies that a counter overflow event has been raised. The event
information specifies which counter overflowed. Multiple counter overflows can be
specified with a single event. The following is the definition of the event informa-
tion:
Bit 27 GPDMA Write DMA Byte Count Overflow
Bit 26 GPDMA Read DMA Byte Count Overflow
Bit 25 RXQUE Timestamp Counter Overflow
Bit 24 PCINT Performance Counter 1 Overflow
Bit 23 PCINT Performance Counter 2 Overflow
This event specifies that a POOLS status event has been raised. The event infor-
mation contains the status. See Buffer Pool Management (POOLS) on page 247
for the definition.
This event specifies that a timestamp event has been placed ahead of next event.
The event information contains the timestamp.
This event specifies that a timestamp event has been placed ahead of next event.
The most significant word in the event-information field contains the full 32-bit
timestamp.
Description
pnr25.chapt05.01
August 14, 2000
Preliminary