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ok mickey@
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of gcc extensions have more of a chance.
ok mcbride@, no objections from millert@, deraadt@
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Tom: I did not commit a couple of your changes.
i did not include some punctuation fixes (full stops, etc.)
mnemorable -> mnemonic: i decided memorable was probably better
instrunctions -> instruction: i kept the plural
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ok (and from) mickey@.
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machines.
Align siop_xfer on 128 byte boundary, and don't use on-board RAM.
Aligning siop_xfer will be made general, post-3.4.
From mickey@.
ok deraadt@ mickey@.
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mapped and sync'ed appropriately, and is guaranteed to be in one
memory page.
Eliminate now unused dmamap_cmd and rs_cmd fields.
Fix another error message (adding active command to reset list) so
that it includes the adapter name.
Add missing letoh32() calls to debug code.
The evils of directly mapping *xs->cmd were pointed out by Mickey
during osiop development. In particular, *xs->cmd may start on one
memory page and run into the next. Since the dma logic in most
cards/drivers (including siop) only allocates one address/size pair to
map *xs->cmd, parts of a command could be lost or corrupted.
The large number of 6 byte dma mappings noted long ago by someone
(Henric?). This change reduces the dma mapping activity per i/o by
1/3 to 1/2 and may give a performance boost of some kind.
Successfully tested on i386, sparc64 (ultra30 - thanks Jolan,
blade100), macppc and alpha.
Unfortunately these changes don't fix the Blade1000 siop problems.
**NOTE** If scsi_generic is ever upped to 16 bytes the offsets in
siop.ss must be updated!
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In siop_reset(), reset sc_ntargets to 0. The number of targets will be
computed again in siop_add_reselsw().
In siop_reset(), reset the tag reseloff to 0, in addition to the lun
reseloff. If siop_add_dev() fails this time we would use the old
reseloff, clobbering memory now used for something else.
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differences, undoing whitespace, spelling, etc. changes
and adopting the NetBSD code instead of equivalent home
grown code for PPR negotiation, etc.
siop.c 1.21 -> 1.64
siop_common.c 1.12 -> 1.30
siopreg.h 1.7 -> 1.13
siopvar.h 1.13 -> 1.18
siopvar_common.h 1.10 -> 1.21
ncr53cxxx.c 1.5 -> 1.10
siop.ss 1.12 -> 1.17
siop_pci.c 1.8 -> 1.11
siop_pci_common.c 1.6 -> 1.17
siop_pci_common.h 1.2 -> 1.4
Many fixes, add 1010-66 support, restructure things to prepare for
addition of esiop, osiop and oosiop drivers.
tested on various archs by art@, millert@, wilfried@, jason@,
Dan Weeks.
ok deraadt@.
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Most work by Wilbern Cobb <vedge@csoft.org> with some fixes from me, mickey@
and drahn@.
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lacked it (scr_table).
Also remove scr_table_t typedef and just use 'struct scr_table' to be
consistant with all other structures.
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using *_bus_dmamap_sync() defines that are defined appropriately
depending on __HAS_NEW_BUS_DMAMAP_SYNC.
Most of the code changes are simple reversions to the original NetBSD
code.
Slip in a siop_script_sync() instead of a manually done code section.
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sc_link->device_softc not necessarily available for devices like cd's
that don't issue SCSI commands after INQUIRY during probe, leaving
negotiation triggering to next LUN. Spotted by Nikolay Sturm.
Fixing this is not worth the effort and added complexity for a
cosmetic improvement.
Keep code cleanups done at the same time, and add a typo fix
(destiation -> destination).
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adapter's siop_softc. This allows easy access to the dv_xname of the
device whose negotiation results are being reported. This makes boot
probe and subsequent log messages clearer.
e.g. message will now read
sd0: negotiated tagged 16 bit 20 MHz 16 REQ/ACK offset xfers
instead of
siop0: target 0 now using tagged 16 bit 20 MHz 16 REQ/ACK offset xfers
Clean up siop_print_info() a bit as long as we are there.
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Add support for PPR negotiations and DT transfers,
and the preservation and restoration of the
SCNTL4 register which controls Ultra3 transfers.
Redo sync lookup, since the same period factor
can mean two things depending on whether you are
using DT or ST. Keep a minimum allowed ST period
factor, and a minimum allowd DT period factor for
each adapter.
Currently NO support for QAS or IUS or AIP.
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2) Negotiate and report wide/sync only after INQUIRY
results known.
3) Clean up wide/sync negotiation code a bit, ensuring
that an agressive target does not prematurely force
negotiation before the INQUIRY is done. Seen by millert@.
4) Ensure that a wide negotiation always resets the
sync settings to async.
5) Some error message improvements from thorpej@NetBSD.
6) Some KNF.
7) Print wide/sync negotiation results after each
completed negotiation.
8) Print some relevant information just before a panic
that should never happen. But does on PowerPC.
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Written for NetBSD by Manuel Bouyer.
Tested with various cards on i386 and alpha.
Outstanding issue: doesn't work with PowerPC yet.
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