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manual abstract
ACC Release Notes
Patches and Fixes for this Version
• JAGad02457
Symptoms: The interface tunable tsize parameter for the E1/T1 cards and Z7340A 8-port
PCI has inadequate editing in ttgen and checking in the firmware, and an incorrect value
such as 1 can cause a firmware failure.
Defect/Fix: The minimum allowable value is 8 bytes. This would allow the header only,
with no timers. The actual value must be a multiple of 8 bytes. Each timer entry occupies 8
bytes, in addition to the header. Interface tunable "tsize" has been fixed to be multiple of 8;
and minimum 8.
• JAGad04280
Symptoms: DSC card control (startup/disable) does not work.
Defect/Fix: While doing DSC card-config tests (zconfig), it was found that the system shuts
down a card even when a DSC card-startup or card-disable request is issued.
The reason for the above problem is that some "break" statements were missing in the
switch statement in dsc_card() function of LDM code. It also misses out the setting of
"irr.reason" to indicate different reasons for card disable or halt.
• JAGad21743
Symptoms: During high load activity on the Z7200A OR Z7400A ACC cards, such as X.25
call establishment and clearing on all port, the port may be unable to accept further
transmit requests. The affected port is not usable until the ACC card is restarted.
In the case of X.25 call establishment, the user application may encounter the error return
ENOSPC.
Defect/Fix: The transmit processing for the affected port was stalled, because the firmware
was in an inconsistent state. Two problems in the low level state processing of the frame
protocol have been identified and removed. A workaround has been implemented for an
inconsistent state where the transmit timer was not running, but the transmitter was
active. Additional protection has also been added to interrupt critical state processing.
• JAGad25064
Symptoms: ACC 8 port PCI was sending 1 byte data packet.
Defect/Fix: The default SAM values for N2Z_OUTB_BUFFER_SZ and
N2Z_MAX_ZSTRBUF_PGS were incorrect and have been modified.
Chapter 1
11
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