Found a funny in the sym2 driver I'm not sure how to resolve:
cp->sensecmd[0] = REQUEST_SENSE;
cp->sensecmd[1] = 0;
if (tp->tinfo.curr.scsi_version <= 2 && cp->lun <= 7)
cp->sensecmd[1] = cp->lun << 5;
Thing is, we don't set scsi_version anywhere, so I'm sure sym2 currently
does The Wrong Thing for SCSI-2 drives. Pulling up the (draft) specs,
this does seem to be something that changed between SCSI-2 and SPC3r15.
Polling some of the other scsi drivers for a solution:
3w-9xxx Never fills in LUN
53c700 Always fills in LUN
BusLogic Doesn't send REQUEST_SENSE
aic7xxx Same as sym2 (except it sets its equivalent of scsi_version)
dc395x Always fills in LUN
gdth Doesn't send REQUEST_SENSE
ipr Never fills in LUN
ips Doesn't send REQUEST_SENSE
ncr53c8xx Doesn't send REQUEST_SENSE
qla1280 Doesn't send REQUEST_SENSE
sym53c416 Doesn't send REQUEST_SENSE
tmscsim Always fills in LUN
In other words, the only driver I've found that gets this *right* is
aic7xxx (and 79xx). Even scsi_error.c doesn't fill in the LUN. What's
going on here?
--
"Next the statesmen will invent cheap lies, putting the blame upon
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince
himself that the war is just, and will thank God for the better sleep
he enjoys after this process of grotesque self-deception." -- Mark Twain
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