[T10] Fwd: Advance Credit comment

Gerry Houlder gerry.houlder at seagate.com
Tue Aug 2 08:56:15 PDT 2016

Another late letter ballot comment from Seagate.

---------- Forwarded message ----------
From: Judy Westby <judy.westby at seagate.com>
Date: Tue, Aug 2, 2016 at 9:51 AM
Subject: Advance Credit comment
To: Gerry Houlder <gerry.houlder at seagate.com>
Cc: Erik J Lavan <erik.j.lavan at seagate.com>

I believe that the first reference to the Advance Credit message should
be Advance Credit *(Received)* message like it is in the second case: SSP_TCM (transmit frame credit monitor) state machine
The SSP_TCM state machine’s function is to ensure that transmit SSP frame
credit is available before a frame is transmitted. This state machine
consists of one state.

This state machine shall keep track of the number of transmit SSP frame
credits available.

*If an Advance Credit message is received*, then this state machine shall:
1) increment transmit SSP frame credit by one frame;
2) ignore the first RRDY Received message received; and
3) add one transmit SSP frame credit for each subsequent RRDY Received
message received.

*If an Advance Credit (Received) message is not received*, then this state
machine shall add one transmit SSP frame credit for each RRDY Received
message received.


Judy Westby
Seagate Technology

Seagate Confidential Information:
This e-mail message and any files transmitted with it are for the sole use
of the intended recipient(s) and may contain confidential and privileged
information. Any unauthorized review, use, disclosure, or distribution is
prohibited. If you are not the intended recipient, please contact the
sender by reply e-mail and destroy all copies of the original message.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.t10.org/pipermail/t10/attachments/20160802/a037fd62/attachment.html>

More information about the T10 mailing list