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    SubjectRe: [PATCH 2.6.13 5/14] sas-class: sas_discover.c Discover process (end devices)
    On 09/14/05 14:47, James Bottomley wrote:
    > On Tue, 2005-09-13 at 15:42 -0700, Patrick Mansfield wrote:
    >>So adding a W_LUN at this point does not add any value ... maybe it looks
    >>nice in the spec and in someones firmware, but it does not add anything
    >>that I can see.
    > Well I agree with the analysis, but even given that, we have a linux
    > implementation problem: We have to get an inquiry response first before
    > we begin a report luns scan. An array implementing a W_LUN is entitled
    > not respond on LUN 0 to INQUIRY with an error, which would mean we don't
    > see it.
    > Therefore, I think our strategy has to be when the current probe fails
    > because of no LUN 0 try a report luns scan on the W_LUN anyway as long
    > as the transport indicates it is capable of supporting it (i.e. as long
    > as it has max_luns set at 0xffff or higher).

    Alternatively, you can see how this is all properly implemented
    in the SAS Layer which I posted last week.

    All indications point to the fact that you had indeed taken
    a look at the code.


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