Hi all,
      The link,http://www.opensolaris.org/os/community/arc/caselog/1999/647/, 
gives our overview about the MPxIO.It's so cool.
   When want to learn more , I find that i am dropped into a loop . The problem 
is what the relative between tvhci, tphci, tcli . I can't find some  right 
flows such as detect a  device and register it into MPxIO .
     From some material linked  http://www.opensolaris.org/os/project/mpxio/, I 
can sure scsi_vhci is load before tvhci, tphci, tcli . Have some   puzzles 
about the inital flow.
    The mdi_pi_alloc is the entry point of alloc path info. But in that 
functions ,it need some vchi infomations,when the vchi is alloc?
  I'm sorry for describing problem so disorder. But I hope your Tips ,Thanks
 
 
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