<HTML dir=ltr><HEAD><TITLE>RE: [ofw] patch 2/2 Add support for RDMAoEth to the low level driver</TITLE>
<META http-equiv=Content-Type content="text/html; charset=unicode">
<META content="MSHTML 6.00.6001.18344" name=GENERATOR></HEAD>
<BODY>
<DIV id=idOWAReplyText48598 dir=ltr>
<DIV dir=ltr><FONT face=Arial color=#000000 size=2>I guess that's just one way to make local RDMAoe subnet know that grh must be used and at the same time same code also works in real IB environment. There might be other specifications that i don't know.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>-James</FONT></DIV></DIV>
<DIV dir=ltr><BR>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Sean Hefty [mailto:sean.hefty@intel.com]<BR><B>Sent:</B> Thu 12/3/2009 8:55 PM<BR><B>To:</B> James Yang; Tzachi Dar; ofw@lists.openfabrics.org<BR><B>Subject:</B> RE: [ofw] patch 2/2 Add support for RDMAoEth to the low level driver<BR></FONT><BR></DIV>
<DIV>
<P><FONT size=2>>RDMAoE always use gid for communication, thus grh_valid should be always true.<BR>>With dgid=fe80::0, ib_gid_is_link_local() will return true, and make grh_valid<BR>>FALSE.<BR><BR>Yes - I understand that. What I don't understand is *why* a path record for<BR>RDMAoE would specify a hop count > 1 to begin with. That doesn't make sense,<BR>and a can't imagine that an RDMAoE specification would require a hop count > 1<BR>for the local subnet case. The RDMAoE checks need to be more explicit.<BR><BR>- Sean<BR><BR></FONT></P></DIV></BODY></HTML>