From: Bill.Martin@emulex.com
To: <Elliott@hp.com>, <t10@t10.org>
Date: Tue, 4 Nov 2008 19:48:40 -0800
Subject: Additional corrections for TRAIN/TRAIN_DONE elasticity buffer
 resolution
X-Message-Number: 9264
Formatted message: HTML-formatted message

The following two changes need to be made to make SAS2 consistent related to
the elasticity buffer fix in SAS2r14g:
1) In 6.9.2 the following paragraph needs to be modified:
When the SP_DWS receiver receives a Sync Acquired message, it shall send the
most recently received primitive and all subsequent dwords to the link layer
state machine receivers (e.g., SL_IR, SL, SSP, SMP, and XL) as Dword Received
confirmations. If multiplexing is enabled (see table 103 in 6.7.4.2.3.3),
then the SP_DWS receiver shall use the first incoming MUX primitive to
determine the logical phy to which it sends each Dword Received confirmation
and shall not send an Dword Received confirmations until it receives the
first incoming MUX primitive.
The first sentence needs to be modified to read:
After a Start SL_IR Receiver confirmation and before a Phy Layer Not Ready
confirmation from the SP state machine, when the SP_DWS receiver receives a
Sync Acquired message, it shall send the most recently received primitive and
all subsequent dwords to the link layer state machine receivers (e.g., SL_IR,
SL, SSP, SMP, and XL) as Dword Received confirmations.
2) In 6.9.6.1 the following paragraph  in the SP_DWS3: SyncAcquired state
needs to be modified:
Upon entry into this state, the phy shall send a Sync Acquired message to the
SP_DWS receiver and the SP receiver. The most recently received primitive and
all subsequent dwords shall be forwarded for processing by the link layer.
The last sentence needs to be modified to read:
After a Start SL_IR Receiver confirmation and before a Phy Layer Not Ready
confirmation from the SP state machine, the most recently received primitive
and all subsequent dwords shall be forwarded for processing by the link
layer.
Bill Martin
Emulex
Office of Technology
Industry Standards
916 772-3658
916 765-6875 (Cell)
bill.martin@emulex.com