On Thu, May 1, 2008 at 11:24 AM, Ken Sandars <[EMAIL PROTECTED]> wrote: > > >> [Ken] It appears the current Linux iSER initiator does not send the HELLO > message when > > >> the connection transits to full feature phase. The stgt target also > ignores this > >> message (if it were to appear). > [Ken] The IBTA document does not mention the HELLO/HELLOREPLY messages. > Implementing this message exchange gives a distinction between the current > implementations > and those that will correctly calculate the write_va (as per Pete Wyckoff's > option 3).
I agree. > > >> [Ken] Both of these implementations use a non-conformant iSER header > (they add > > >> write_va and read_va fields, which incidentally do not appear to be > used). Are > >> these changes documented anywhere in the IB domain, or are these > variations > >> needed for another reason? > > > > [Erez] Take a look at the iSER for IB annex: > > > http://www.infinibandta.org/members/spec/Annex_iSER.PDF > > [Ken] Ouch. That link requires a username/password. Looks like it is only > available to members > of the Infiniband Trade Association. Fortunately I gained access to it with > username "open" and > password "standard". ;-) > > [Ken] Neither of these implementations send or examine the iSER CM REQ/REP > message private data. > The document doesn't define what action to take when this message is > absent. Interestingly, > when the target reports that "ZBVA shall be used for this connection" and > "the target shall issue > Send with Invalidate as needed" then it appears the iSER header specified in > RFC5046 should be > used for control-type PDUs. Is there any plan to conform with the list of > requirements for IBTA > compliance? At the moment these capabilities (ZBVA, Send Invalidate) are not supported in the driver, though they seem to be supported by the ConnectX HCA. Hence, iSER implementation do not send/examine them. This may be added to the CM REQ/REP with the current defaults but in order to use these capabilities a code should be added to the HCA driver and iser. > > Cheers, > Ken > > ________________________________ > Hotmail on your mobile. Never miss another e-mail with --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to email@example.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---