[Skiboot] [PATCH 0/3] npu2: Additional hw glitch mitigation
arbab at linux.vnet.ibm.com
Tue Nov 28 11:10:51 AEDT 2017
I think we have finally gotten ahead of the glitching DL clock mux that
is causing so much trouble for NVLink training/stability.
With these changes, we've tested hundreds of boot cycles without tripping
the check_credits safeguard added to detect training error. Before, we
were dealing with something like a 1-2% failure rate.
Reza Arbab (3):
npu2: hw-procedures: Add obus_brick_index()
npu2: hw-procedures: Manipulate IOVALID during training
npu2: hw-procedures: Change phy_rx_clock_sel values
hw/npu2-hw-procedures.c | 61 +++++++++++++++++++++++++++++++++----------------
1 file changed, 41 insertions(+), 20 deletions(-)
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