b5da7b232e
tag is active for an ATIO, and say that you want to reconnect with a tag value in a CTIO have *never* been exercised until now. This lossage derived from Solaris code where this stuff originally came from that is about 7 years old. Amazing. We now bundle the incoming tag (legal values are 0..256) as the low 16 bits of the ccb_accept_tio's at_tagid while we put the firmware handle for this ATIO in the top 16 bits- define some macros to make this cleaner. Complete some Ansification.
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