Request for clarification on SMP_RESPONSE frame

David Freeman davidf at data-transit.com
Mon Aug 5 11:28:44 PDT 2002


* From the T10 Reflector (t10 at t10.org), posted by:
* "David Freeman" <davidf at data-transit.com>
*
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Section 9.4.4.3 of sas-r01 seems to be saying that within the response
bytes, only bytes 48 thru 53 (6 bytes or 48 bits) are needed for the
"ATTACHED SAS TARGET BITMASK". This does not seem right to me. =
Shouldn't
there be 64 bits in this field.

=20

Additionally I think that the "ATTACHED SATA BITMASK" only needs 64 =
bits
instead of the 176 bits it was allocated. I also think that the "PHY
RATE MULTIBITMASK" needs 64 nibbles (256 bits) instead of the 64 bits
allocated.
=20
=20
Current
48 - 53        ATTACHED SAS TARGET BITMASK
54 - 75        ATTACHED SATA BITMASK
76 - 83        PHY RATE MULTIBITMASK
84 - 115      FUNCTIONS SUPPORTED BITMASK
=20
Proposed=20
48 - 55        ATTACHED SAS TARGET BITMASK
56 - 63        ATTACHED SATA BITMASK
64 - 95        PHY RATE MULTIBITMASK
96 - 127      FUNCTIONS SUPPORTED BITMASK
=20
Thank You
=20
David Freeman
Design Engineer
=20
davidf at Data-Transit <mailto:davidf at Data-Transit.com> .com

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Section 9.4.4.3 of sas-r01 seems to be saying that within the = response=20 bytes, only bytes 48 thru 53 (6 bytes or 48 bits) are needed for the = =93ATTACHED=20 SAS TARGET BITMASK=94. This does not seem right to me. Shouldn=92t = there be 64 bits=20 in this field.   
mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: = AR-SA"> 
  
 Current
 48 - 53        = ATTACHED SAS TARGET BITMASK
 54 - 75        = ATTACHED=20 SATA BITMASK
 76 - = 83        PHY=20 RATE MULTIBITMASK
 84 - = 115      FUNCTIONS=20 SUPPORTED BITMASK
 Proposed 
 mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> 48 - 55        = ATTACHED SAS TARGET BITMASK
 56 = - 63       =20 ATTACHED SATA BITMASK
 64 - 95       p;PHY RATE=20 MULTIBITMASK
 96 - = 127      FUNCTIONS=20 SUPPORTED BITMASK
  
 Thank You
 David Freeman
 Design Engineer
 davidf at Data-Transit.com




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