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Subject: RE: Cougar memory
Date: Fri, 18 May 2007 09:28:12 -0700
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E03C0C572@onstor-exch02.onstor.net>
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Thread-Topic: Cougar memory
Thread-Index: AceXTCUHh0M0H9YDS4GgvP8uu+752ABsSeegAASqM7AAFaMo4AAAqfwg
References: <BB375AF679D4A34E9CA8DFA650E2B04E03B6ED53@onstor-exch02.onstor.net> <BB375AF679D4A34E9CA8DFA650E2B04E03C0C444@onstor-exch02.onstor.net> <BB375AF679D4A34E9CA8DFA650E2B04E02FB254C@onstor-exch02.onstor.net> <BB375AF679D4A34E9CA8DFA650E2B04E03C0C544@onstor-exch02.onstor.net>
From: "Brian Stark" <brian.stark@onstor.com>
To: "Maxim Kozlovsky" <maxim.kozlovsky@onstor.com>,
	"Bill Nadzam" <bill.nadzam@onstor.com>
Cc: "dl-Cougar" <dl-Cougar@onstor.com>

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Yes, that memory mapping is also an option...
=20


________________________________

	From: Maxim Kozlovsky=20
	Sent: Friday, May 18, 2007 9:08 AM
	To: Bill Nadzam; Brian Stark
	Cc: dl-Cougar
	Subject: RE: Cougar memory
=09
=09

	Why spend TLB entries? Just use the XKSEG mappings.

	=20

=09
________________________________


	From: Bill Nadzam=20
	Sent: Thursday, May 17, 2007 10:47 PM
	To: Brian Stark
	Cc: dl-Cougar
	Subject: RE: Cougar memory

	=20

	This is great news!

	Thanks.

	=20

=09
________________________________


	From: Brian Stark
	Sent: Thu 5/17/2007 8:38 PM
	To: Bill Nadzam
	Subject: RE: Cougar memory

	Bill,

	=20

	This will be the same on Cougar and won't be an issue for the
SiBytes.  For reading memory that was written by the QLogic, the SiByte
will use TLB entries that point to uncached memory space. =20

	=20

	=20

	Brian

	=20

		=20

	=09
________________________________


		From: Bill Nadzam=20
		Sent: Tuesday, May 15, 2007 4:53 PM
		To: Brian Stark
		Subject: Cougar memory

		In the Cheetah and Bobcat we had to use special
addressing for uncached memory space.

		This would be done whenever we read memory that was
written by the QLogic part.

		=20

		Is this a problem for the Cougar?


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<DIV dir=3Dltr align=3Dleft><SPAN class=3D964352516-18052007><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Yes, that memory mapping is also an=20
option...</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN =
class=3D964352516-18052007></SPAN>&nbsp;</DIV><BR>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
  <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
  <HR tabIndex=3D-1>
  <FONT face=3DTahoma size=3D2><B>From:</B> Maxim Kozlovsky =
<BR><B>Sent:</B> Friday,=20
  May 18, 2007 9:08 AM<BR><B>To:</B> Bill Nadzam; Brian =
Stark<BR><B>Cc:</B>=20
  dl-Cougar<BR><B>Subject:</B> RE: Cougar memory<BR></FONT><BR></DIV>
  <DIV></DIV>
  <DIV class=3DSection1>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Why spend =
TLB=20
  entries? Just use the XKSEG mappings.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
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align=3Dcenter><FONT=20
  face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
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  <P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN=20
  style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
  face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
  <st1:PersonName w:st=3D"on">Bill Nadzam</st1:PersonName> <BR><B><SPAN=20
  style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday, May 17, 2007 =
10:47=20
  PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> Brian=20
  Stark<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Cc:</SPAN></B>=20
  dl-Cougar<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> =
RE: Cougar=20
  memory</SPAN></FONT><o:p></o:p></P></DIV>
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  <DIV>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dblack size=3D2><SPAN=20
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great=20
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  <DIV>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Thanks.</SPAN></FONT><o:p></o:p></P></DIV></DIV>
  <DIV>
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  style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
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  size=3D2><SPAN=20
  style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
  face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma"> Brian=20
  Stark<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Thu =
5/17/2007=20
  8:38 PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> =
<st1:PersonName=20
  w:st=3D"on">Bill Nadzam</st1:PersonName><BR><B><SPAN=20
  style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: Cougar=20
  memory</SPAN></FONT><o:p></o:p></P></DIV>
  <DIV>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dblue size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
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  <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
  style=3D"FONT-SIZE: 12pt">&nbsp;<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dblue size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">This will =
be the same=20
  on Cougar and won't be an issue for the SiBytes.&nbsp; For reading =
memory that=20
  was written by the QLogic, the SiByte will use&nbsp;TLB entries that =
point to=20
  uncached memory space. &nbsp;</SPAN></FONT><o:p></o:p></P>
  <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
  style=3D"FONT-SIZE: 12pt">&nbsp;<o:p></o:p></SPAN></FONT></P>
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  <P class=3DMsoNormal><FONT face=3DArial color=3Dblue size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Arial">Brian</SPAN></FONT><o:p></o:p></P>
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    face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
    <st1:PersonName w:st=3D"on">Bill Nadzam</st1:PersonName> =
<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, May 15, 2007 =
4:53=20
    PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> Brian=20
    Stark<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> =
Cougar=20
    memory</SPAN></FONT><o:p></o:p></P>
    <DIV>
    <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">In the Cheetah and =
Bobcat we had=20
    to use special addressing for uncached memory=20
    space.</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">This would be done =
whenever we=20
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    part.</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
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    <DIV>
    <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Is this a problem for =
the=20
    =
Cougar?</SPAN></FONT><o:p></o:p></P></DIV></BLOCKQUOTE></DIV></DIV></BLOC=
KQUOTE></BODY></HTML>

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