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