OPEN Timeout condition

Gil Romo gil.romo at
Thu Mar 10 09:57:54 PST 2005

* From the T10 Reflector (t10 at, posted by:
* Gil Romo <gil.romo at>
Hello SAS community,

A problem occurs if the XL1 state simultaneously receives a Break Received 
message from the XL receiver and a Forward Open indication from the ECR.

The XL1 state currently gives priority to the Break Received message, hence the 
phy transmits a BREAK and the corresponding end device is happy.  For the 
crossing request, however, the Forward Open indication is ignored, resulting in 
an OPEN timeout.

Should the priority instead go to the Forward Open indication, passing a Break 
Received argument with the XL5 transition?  This gives the same result as 
receiving the BREAK in the XL5 state.

Gilbert Romo                         Circuits and Integration Engineer
Voice: (949) 389-6266                QLogic Corporation
E-mail: gil.romo at          Aliso Viejo, California

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