Date: Tue, 25 Feb 1997 22:11:07 -0800 (PST) From: Simon Shapiro <Shimon@i-Connect.Net> To: freebsd-scsi@freebsd.org Subject: SCSI HBA QUESTION - IMPORTANT (long) Message-ID: <XFMail.970225223229.Shimon@i-Connect.Net>
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Hi Y'all!
I am finally starting to debug the DPT driver. Here is what I have. There
is a question at the end:
The following is a trace of kernel messages. It has compiled with option
SCSIDEBUG, which does not seem to help me much :-(
chip2 <Intel 82371FB IDE interface> rev 2 on pci0:7:1 <-- Last before SCSI
dpt0 <DPT Caching SCSI RAID Controller> rev 2 int a irq 11 on pci0:17
dpt_alloc(0, ef80, 0xf148ac00) <-- Allocates a softc, etc. Seems OK.
get_board_data(ef80, 0) <-- Gets much infor from the DPT. Seems OK
dpt_intr_mode(0xef80, 1) <-- Disables interrupts from the DPT
dpt_send_immediate(ef80, 0, 4, 0, 0) <-- Sends immediate commands
dpt_send_eata_command(f10c7f00, ef80, ff, 0) <-- Sends regular commands
dpt_intr_mode(0xef80, 0) <-- Enables interrupts from the DPT
dpt_send_immediate(ef80, 0, 4, 1, 0) <-- Sends another immediate command
dpt_alloc_freelist(0xf148cc00) <-- Allocates a chunk of CCB's
dpt0: Total CCB's increased by 64 to 64 <-- From dpt_alloc_freelist
dpt_alloc(0, ef80, 0xf148ac00) <-- End of this function
dpt_attach(0xf148cc00) <-- Sets up the scsi_link
ndx = 0, channels = 1 <- This DPT has only one channel
[597] <-- Just before scbus = scsi_alloc_bus()
[600] <-- scsi_alloc_bus() returned non-zero
dpt0 waiting for scsi devices to settle <-- From scsi_alloc_bus??
[611] <-- Just after scsi_attachdevs(scbus) returned
[614] <-- the scsi-alloc_bus()/scsi_attachdevs() loop exited.
ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 10 on pci0:18
ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
ahc0 waiting for scsi devices to settle
(ahc0:0:0): "SEAGATE ST51080N 0913" type 0 fixed SCSI 2
Now, the conf file for this kernel looks (for the DPT) like:
controller ahc0
controller scbus0 at ahc0
controller dpt0
controller scbus1 at dpt0
controller scbus2 at dpt0
controller scbus3 at dpt0
disk sd0 at scbus0 target 0 unit 0
disk sd1 at scbus0 target 1 unit 0
disk sd3 at scbus1 target 0 unit 0
QUESTION: Assuming someone can sort through this, what do I need to do to
convince scsi_attachdevs() to actually do something with the DPT?
It sees the Adaptec allright, but makes no attempt to call on the
DPT.
Thanx!
Simon
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