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History log of /src/sys/dev/ic/osiop.c
RevisionDateAuthorComments
 1.43  07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.42  24-Apr-2021  thorpej branches: 1.42.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).
 1.41  10-Nov-2019  chs branches: 1.41.10;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.
 1.40  16-Dec-2013  mrg branches: 1.40.30;
avoid unused variables outside of diag code.
 1.39  13-Nov-2010  uebayasi branches: 1.39.8; 1.39.18; 1.39.22;
Don't pull in the whole uvm(9) API to access only PAGE_SIZE and
some other constants. These are provided by sys/param.h now.
 1.38  04-May-2010  tsutsui Make local functions static.
 1.37  09-Dec-2008  tsutsui branches: 1.37.4; 1.37.6;
Sync with src/sys/arch/amiga/dev/siop.c rev 1.59:
> Deal with unrecognized SCSI message byte - restart script to clear the
> ACK. No longer hangs the driver when an unhandled message byte is seen.
 1.36  14-May-2008  tsutsui branches: 1.36.4; 1.36.6; 1.36.8;
Normalize my licenses.
 1.35  03-May-2008  tsutsui branches: 1.35.2;
- remove dead URL of datasheet
- change my mail address to NetBSD.org one
 1.34  29-Mar-2008  tsutsui branches: 1.34.2; 1.34.4;
Split softc/device_t for oosiop(4) and osiop(4), with misc cosmetic changes.
 1.33  19-Oct-2007  ad branches: 1.33.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h
 1.32  30-Jun-2007  tsutsui branches: 1.32.6; 1.32.8; 1.32.12;
- avoid possible NULL pointer dereference in error path
- call Debugger() only #ifdef OSIOP_DEBUG
Partially from OpenBSD.
 1.31  30-Jun-2007  tsutsui Use more TAILQ macro. From OpenBSD.
 1.30  30-Jun-2007  tsutsui Backout previous; defer bus_dmamap_sync(9) op against data buffer instead.

XXX ews4800mips (which has 128byte L2 cacheline) still has
XXX some problem in sd_read_capacity() on some unclear condition.
 1.29  30-Jun-2007  tsutsui Copy SCSI command before bus_dmamap_sync(9) PREREAD ops against
data xfer buffer because command and data buffers might be in
the same cacheline.
 1.28  30-Jun-2007  tsutsui Rather than preparing DMA map for SCSI command (which is
less than 16 bytes) of each SCSI command block (acb), just
prepare DMA safe buffer in struct osiop_ds and copy commands
into the buffer on each transfer to save resources and
reduce small and unaligned cache flush ops.

As a side effect, sizeof struct osiop_ds (DMA safe data buffer)
is now 256 bytes (including padding) so it could be more
cacheline friendly on bus_dmamap_sync(9) ops.

Tested on Express5800/230 (arc) and EWS4800/360AD (ews4800mips),
and no visible performance difference on bonnie.
(hppa and mvme68k are untested)
 1.27  04-Mar-2007  christos branches: 1.27.2; 1.27.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.26  29-Mar-2006  thorpej branches: 1.26.14;
Use device_cfdata().
 1.25  11-Dec-2005  christos branches: 1.25.4; 1.25.6; 1.25.8; 1.25.10; 1.25.12;
merge ktrace-lwp.
 1.24  30-Apr-2005  tsutsui branches: 1.24.2;
Avoid NULL pointer dereference on unexpected error cases. (from OpenBSD)
 1.23  27-Feb-2005  perry nuke trailing whitespace
 1.22  18-Feb-2005  tsutsui Print newline in some error messages.
 1.21  17-Feb-2005  tsutsui Allow MD attachments to override CTEST4 register value.
 1.20  02-Jan-2005  tsutsui branches: 1.20.2; 1.20.4;
u_intNN_t -> uintNN_t
 1.19  25-Sep-2004  tsutsui Use ANSI function decls.
 1.18  28-Mar-2004  mhitch Remove clauses 3 and 4.
 1.17  02-Nov-2003  wiz Fix some typos. From Tom Cosgrove via jmc@openbsd.
 1.16  29-Oct-2003  tsutsui Add a bogus initializer to appease gcc's uninitialized warning.

XXX osiop_checkintr() should be rewritten.
 1.15  29-Sep-2003  wiz available, not avaliable. From miod@openbsd.
 1.14  07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.
 1.13  12-Apr-2003  tsutsui branches: 1.13.2;
Add some delays between 8bit reads of DSTAT and SSTAT0 registers
as per the 53c710 manual. Pointed out by fredette in osiop_gsc.c long ago.
 1.12  12-Apr-2003  tsutsui Fixes from OpenBSD:
- Fix index bounds checking in save data pointers logic.
- Fix an indent problem and an extra blank space.
 1.11  18-Feb-2003  tsutsui Also remove (probably) incorrect comment.
 1.10  18-Feb-2003  tsutsui Remove unusable debug code.
 1.9  05-Apr-2002  bouyer Implement mstohz() as discussed on tech-kern, and use it in SCSI drivers
to convert xs->timeout to callout() parameter.
 1.8  16-Dec-2001  tsutsui malloc() + memset() -> malloc() with M_ZERO flag
 1.7  18-Nov-2001  tsutsui - Use MI ADAPTER_REQ_SET_XFER_MODE callback
- Move values in sc_sync[] member to sc_tinfo[]
- Change some u_int8_t values to int
- Remove unused wide negotiation states
- Misc cleanup
 1.6  13-Nov-2001  lukem add/cleanup RCSID
 1.5  19-Jul-2001  thorpej Use BUS_DMA_READ and BUS_DMA_WRITE in some obvious places.
 1.4  09-Jun-2001  tsutsui branches: 1.4.2; 1.4.4;
Fix an uninitialized variable in #ifdef DIAGNOSTIC.
Pointed out by soda.
 1.3  17-May-2001  scw In osiop_scsidone(), call scsipi_done() even for polled operations.

This fixes a `hang' on shutdown when the `Synchronise Cache' command
is sent to a disk. (It uses polled mode because it is called from inside
a shutdown hook).
 1.2  09-May-2001  tsutsui Print a clock frequency of the chip.
 1.1  30-Apr-2001  tsutsui Add a MI driver for the Symbios/NCR 53c710 SCSI controller.
This is based on amiga's siop driver, but converted to use
bus_space(9) functions and modified to fit bus_dma(9) framework.

Currently tested on NetBSD/arc with jazzio 53c710 SCSI,
which really requires bus_dma(9) functions :-)
Sync transfers and disconnect/reconnect are also working.

TODO:
- Test under more heavy load
- Clean up osiop_checkintr() hander
- Reorganize command queue and sync negotiation handling more suitable
for thorpej-scsipi mid-layer
- Re-think defered interrupt handling for amiga
 1.4.4.3  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.4.4.2  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.4.4.1  03-Aug-2001  lukem update to -current
 1.4.2.6  17-Apr-2002  nathanw Catch up to -current.
 1.4.2.5  08-Jan-2002  nathanw Catch up to -current.
 1.4.2.4  14-Nov-2001  nathanw Catch up to -current.
 1.4.2.3  24-Aug-2001  nathanw Catch up with -current.
 1.4.2.2  21-Jun-2001  nathanw Catch up to -current.
 1.4.2.1  09-Jun-2001  nathanw file osiop.c was added on branch nathanw_sa on 2001-06-21 20:03:04 +0000
 1.13.2.7  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.13.2.6  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.13.2.5  17-Jan-2005  skrll Sync with HEAD.
 1.13.2.4  19-Oct-2004  skrll Sync with HEAD
 1.13.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.13.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.13.2.1  03-Aug-2004  skrll Sync with HEAD
 1.20.4.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.20.2.1  29-Apr-2005  kent sync with -current
 1.24.2.3  27-Oct-2007  yamt sync with head.
 1.24.2.2  03-Sep-2007  yamt sync with head.
 1.24.2.1  21-Jun-2006  yamt sync with head.
 1.25.12.1  31-Mar-2006  tron Merge 2006-03-31 NetBSD-current into the "peter-altq" branch.
 1.25.10.1  19-Apr-2006  elad sync with head.
 1.25.8.1  01-Apr-2006  yamt sync with head.
 1.25.6.1  22-Apr-2006  simonb Sync with head.
 1.25.4.1  09-Sep-2006  rpaulo sync with head
 1.26.14.1  12-Mar-2007  rmind Sync with HEAD.
 1.27.4.1  11-Jul-2007  mjf Sync with head.
 1.27.2.2  23-Oct-2007  ad Sync with head.
 1.27.2.1  15-Jul-2007  ad Sync with head.
 1.32.12.1  25-Oct-2007  bouyer Sync with HEAD.
 1.32.8.1  06-Nov-2007  matt sync with HEAD
 1.32.6.1  26-Oct-2007  joerg Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.
 1.33.16.3  17-Jan-2009  mjf Sync with HEAD.
 1.33.16.2  02-Jun-2008  mjf Sync with HEAD.
 1.33.16.1  03-Apr-2008  mjf Sync with HEAD.
 1.34.4.3  11-Aug-2010  yamt sync with head.
 1.34.4.2  04-May-2009  yamt sync with head.
 1.34.4.1  16-May-2008  yamt sync with head.
 1.34.2.1  18-May-2008  yamt sync with head.
 1.35.2.1  23-Jun-2008  wrstuden Sync w/ -current. 34 merge conflicts to follow.
 1.36.8.1  13-Dec-2008  bouyer Pull up following revision(s) (requested by tsutsui in ticket #183):
sys/dev/ic/osiop.c: revision 1.37
Sync with src/sys/arch/amiga/dev/siop.c rev 1.59:
Deal with unrecognized SCSI message byte - restart script to clear the
ACK. No longer hangs the driver when an unhandled message byte is seen.
 1.36.6.1  19-Jan-2009  skrll Sync with HEAD.
 1.36.4.1  13-Dec-2008  haad Update haad-dm branch to haad-dm-base2.
 1.37.6.2  05-Mar-2011  rmind sync with head
 1.37.6.1  30-May-2010  rmind sync with head
 1.37.4.1  17-Aug-2010  uebayasi Sync with HEAD.
 1.39.22.1  18-May-2014  rmind sync with head
 1.39.18.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.39.8.1  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.40.30.1  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.41.10.1  21-Mar-2021  thorpej Give config_found() the same variadic arguments treatment as
config_search(). This commit only adds the CFARG_EOL sentinel
to the existing config_found() calls. Conversion of config_found_sm_loc()
and config_found_ia() call sites will be in subsequent commits.
 1.42.8.1  04-Aug-2021  thorpej Adapt to CFARGS().

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