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History log of /src/sys/arch/i386/pnpbios/pciide_pnpbios.c
RevisionDateAuthorComments
 1.35  20-Dec-2023  thorpej Remove unnecessary <sys/malloc.h>.
 1.34  24-Aug-2020  msaitoh s/ressource/resource/. No functional change.
 1.33  20-Oct-2017  jdolecek move ata_queue_alloc(1) and ata_queue_free() calls to ata_channel_init()
and ata_channel_destroy() respectively, to make attachment code simpler,
and to make it easier to spot special queue manipulation like cmdide(4)

on topic of PR kern/52606
 1.32  07-Oct-2017  jdolecek Merge support for SATA NCQ (Native Command Queueing) from jdolecek-ncq branch

ATA subsystem was changed to support several outstanding commands, and use
NCQ xfers if supported by both the controller and the disk, including NCQ
error recovery. Set NCQ high priority for BPRIO_TIMECRITICAL xfers
if supported. Added FUA support.

Done some work towards MP-safe, all ATA code tsleep()/wakeup() replaced
by condvars, and switched most code from spl* to mutexes (separate
wd(4) and ata channel lock).

Introduced new option WD_CHAOS_MONKEY to facilitate testing of error
handling, fixed several uncovered issues. Also fixed several problems
with kernel dump to wd(4) disk.

Tested with ahcisata(4), mvsata(4), siisata(4), piixide(4) on amd64,
with and without port multiplier, both disk and ATAPI devices; other
drivers and archs mechanically adjusted and compile-tested. NCQ is
supported for ahcisata(4) and siisata(4) for any controller, for
mvsata(4) only Gen IIe ones for now. Also enabled ATAPI support in
mvsata(4).

Thanks to Matt Thomas for initial ATA infrastructure patch, and
Jonathan A.Kollasch for siisata(4) NCQ changes and general testing.

Also fixes PR kern/43169 (wd(4)); and PR kern/11811, PR kern/47041,
PR kern/51979 (kernel dump)
 1.31  22-Jun-2013  matt branches: 1.31.22;
Make sure dynamically allocated channel_queue struct are zero-filled.
 1.30  31-Jul-2012  bouyer branches: 1.30.2;
Apply back changes that were reverted on Jul 24 and Jul 26 (general ata/wdc
cleanup and SATA PMP support), now that I'm back to fix the fallouts.
 1.29  26-Jul-2012  jakllsch Revert, with intention of restoring in a less invasive way, the SATA Port
Multiplier code.

ok christos@
 1.28  02-Jul-2012  bouyer Add sata Port MultiPlier (PMP) support to the ata bus layer,
as described in
http://mail-index.netbsd.org/tech-kern/2012/06/23/msg013442.html
PMP support in integrated to the atabus layer.
struct ata_channel's ch_drive[] is not dynamically allocated, and ch_ndrive
(renamed to ch_ndrives) closely reflects the size of the ch_drive[] array.
Add helper functions atabus_alloc_drives() and atabus_free_drives()
to manage ch_drive[]/ch_ndrives.
Add wdc_maxdrives to struct wdc_softc so that bus front-end can specify
how much drive they really support (master/slave or single).
ata_reset_drive() callback gains a uint32_t *sigp argument which,
when not NULL, will contain the signature of the device being reset.
While there, some cosmetic changes:
- added a drive_type enum to ata_drive_datas, and stop encoding the
probed drive type in drive_flags (we were out of drive flags anyway).
- rename DRIVE_ATAPIST to DRIVE_ATAPIDSCW to better reflect what this
really is
- remove ata_channel->ata_drives, it's redundant with the pointer in
ata_drive_datas
- factor out the interpretation of SATA signatures in sata_interpet_sig()

propagate these changes to the ATA HBA drivers, and add support for PMP
to ahcisata(4) and siisata(4).

Thanks to:
- Protocase (http://www.protocase.com/) which provided a system
with lots of controllers, SATA PMP and drive slots
- Conservation Genomics Laboratory, Department of Biology, New Mexico State
University for hosting the above system
- Brook Milligan, who set up remote access and has been very responsive
when SATA cable move was needed
 1.27  01-Jul-2011  dyoung branches: 1.27.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.26  16-Apr-2008  cegger branches: 1.26.18;
use POSIX integer types
 1.25  18-Mar-2008  cube Split device_t and softc for ATA devices, as well as wd(4). Other
cosmetic changes where appropriate.
 1.24  16-Nov-2006  christos branches: 1.24.28; 1.24.48; 1.24.52;
__unused removal on arguments; approved by core.
 1.23  12-Oct-2006  christos - sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386
 1.22  21-Jan-2006  bouyer branches: 1.22.18; 1.22.20;
Update pciide at pnpbios to work with the last changes to wdc(4), especially
the deferral of drive probe.
Patch tested by James Haggerty, should fix kern/23192.
 1.21  16-Jan-2006  bouyer properly use ata_channel->ch_ndrive:
- initialize it properly in the bus front-ends (all 2, exept in wdc_pcmcia.c
for the "Sandisk CompactFlash Card" where it's set to 1)
- remplace hardcoded '2' by ata_channel->ch_ndrive in MI IDE drivers.

From Christos Zoulas in kern/32501.
 1.20  11-Dec-2005  christos branches: 1.20.2;
merge ktrace-lwp.
 1.19  20-Aug-2004  thorpej branches: 1.19.10; 1.19.12; 1.19.20;
Move most of wdc_softc into a new atac_softc structure that contains
info common to all types of ATA controllers.
 1.18  19-Aug-2004  thorpej - Add and use a CHAN_TO_WDC() macro to get the wdc_softc from an
ata_channel.
- Add and use a CHAN_TO_WDC_REGS() macro to get the wdc_regs from an
ata_channel.
- Add and use a CHAN_TO_PCIIDE() macro to get the pciide_softc from an
ata_channel.
- Add and use a CHAN_TO_PCHAN() macro to get the pciide_channel from an
ata_channel. (This one just hides a cast, and is really just for
consistency with the others.)
 1.17  14-Aug-2004  thorpej - Split the register handles out of struct wdc_channel into a separate
wdc_regs structure, and array of which (indexed per channel) is pointed
to by struct wdc_softc.
- Move the resulting wdc_channel structure to atavar.h and rename it to
ata_channel. Rename the corresponding flags.
- Add a "ch_ndrive" member to struct ata_channel, which indicates the
maximum number of drives that can be present on the channel. For now,
this is always 2. Add an ATA_MAXDRIVES constant that places an upper
limit on this value, also currently 2.
 1.16  13-Aug-2004  thorpej Don't bother with bits that tell of the presence of optional callbacks;
just check the function pointers for NULL.
 1.15  25-May-2004  thorpej Add the notion of "shadow registers" to the wdc driver. These shadow
registers are registers that overlap with others on many controllers, but
which may actually be distinct on some controllers. Right now, the two
shadows are:

- wd_status (usually overlaps wd_command)
- wd_features (usually overlaps wd_error)

Add a new helper function, wdc_init_shadow_regs(), used to initialize
the shadow register handles on controllers where they do actually overlap.

Partially from Jordan Rhody @ Wasabi Systems, Inc.
 1.14  03-Jan-2004  thorpej More wdc_channel structure member namespace cleanup:
- channel -> ch_channel
- wdc -> ch_wdc
 1.13  03-Jan-2004  thorpej Rename "struct channel_softc" to "struct wdc_channel".
 1.12  01-Jan-2004  thorpej Rename:
- wdc_xfer to ata_xfer
- channel_queue to ata_queue
and move them to <dev/ata/atavar.h> so they can be used by non-wdc ATA
controllers. Clean up the member names of these structures while at it.
 1.11  05-Dec-2003  christos Do the song and dance for the new indirect register mappings.
XXX: This driver's attach routine does not free resources on allocation
failure.
 1.10  08-Oct-2003  bouyer Adapt for wdcattach() prototype change.
 1.9  25-Sep-2003  mycroft Hide the use of config_interrupts() in one place.
 1.8  19-Sep-2003  mycroft 1) Use config_interrupts() to attach IDE and ATAPI drives. This eliminates
most polling.
2) Clean up some goofiness in pciide -- get rid of the whole "candisable" path
(it's gratuitous) and simplify the code by calling pciide_map_compat_intr(),
*_set_modes() and wdc_print_modes() from central locations.
3) Add a register writability and register ghost test to eliminate phantom
drives more quickly.
 1.7  02-Oct-2002  thorpej branches: 1.7.6;
Tidy up CFATTACH_DECL() formatting.
 1.6  01-Oct-2002  fvdl Merge Bill Sommerfeld's i386 MP branch. This code has some known
caveats, but works quite well in a lot of MP cases, and all
UP cases that I have tested. Parts of this will hopefully be
reworked in the not-too-distant future.
 1.5  27-Sep-2002  thorpej Declare all cfattach structures const.
 1.4  15-Nov-2001  lukem branches: 1.4.2;
add RCSID
 1.3  01-Apr-2000  soren branches: 1.3.8; 1.3.10; 1.3.12;
Match new prototype of pciide_dma_start in pciide.c.
 1.2  14-Nov-1999  thorpej branches: 1.2.2; 1.2.4;
Add an "index" locator to the pnpbios `bus'. This allows us to wire down
device instances if there are more than one of a given type in the PnP
BIOS device table.

Add a pnpbios attachment for `lpt'.
 1.1  13-Nov-1999  soren Add almost-PCI IDE attachment for the Toshiba Portege 3000 series.
 1.2.4.1  27-Dec-1999  wrstuden Pull up to last week's -current.
 1.2.2.2  15-Nov-1999  fvdl Sync with -current
 1.2.2.1  14-Nov-1999  fvdl file pciide_pnpbios.c was added on branch fvdl-softdep on 1999-11-15 00:38:11 +0000
 1.3.12.2  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.3.12.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.3.10.2  18-Oct-2002  nathanw Catch up to -current.
 1.3.10.1  08-Jan-2002  nathanw Catch up to -current.
 1.3.8.2  20-Nov-2000  bouyer Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
 1.3.8.1  01-Apr-2000  bouyer file pciide_pnpbios.c was added on branch thorpej_scsipi on 2000-11-20 20:09:36 +0000
 1.4.2.2  15-Nov-2001  lukem add RCSID
 1.4.2.1  15-Nov-2001  lukem file pciide_pnpbios.c was added on branch sommerfeld_i386mp_1 on 2001-11-15 07:03:36 +0000
 1.7.6.4  21-Sep-2004  skrll Fix the sync with head I botched.
 1.7.6.3  18-Sep-2004  skrll Sync with HEAD.
 1.7.6.2  25-Aug-2004  skrll Sync with HEAD.
 1.7.6.1  03-Aug-2004  skrll Sync with HEAD
 1.19.20.1  27-Jan-2006  tron Pull up following revision(s) (requested by bouyer in ticket #1131):
sys/arch/i386/pnpbios/pciide_pnpbios.c: revision 1.22 via patch
Update pciide at pnpbios to work with the last changes to wdc(4), especially
the deferral of drive probe.
Patch tested by James Haggerty, should fix kern/23192.
 1.19.12.3  24-Mar-2008  yamt sync with head.
 1.19.12.2  30-Dec-2006  yamt sync with head.
 1.19.12.1  21-Jun-2006  yamt sync with head.
 1.19.10.1  27-Jan-2006  tron Pull up following revision(s) (requested by bouyer in ticket #1131):
sys/arch/i386/pnpbios/pciide_pnpbios.c: revision 1.22 via patch
Update pciide at pnpbios to work with the last changes to wdc(4), especially
the deferral of drive probe.
Patch tested by James Haggerty, should fix kern/23192.
 1.20.2.1  01-Feb-2006  yamt sync with head.
 1.22.20.2  10-Dec-2006  yamt sync with head.
 1.22.20.1  22-Oct-2006  yamt sync with head
 1.22.18.1  18-Nov-2006  ad Sync with head.
 1.24.52.2  02-Jun-2008  mjf Sync with HEAD.
 1.24.52.1  03-Apr-2008  mjf Sync with HEAD.
 1.24.48.1  24-Mar-2008  keiichi sync with head.
 1.24.28.1  23-Mar-2008  matt sync with HEAD
 1.26.18.1  27-Aug-2011  jym Sync with HEAD. Most notably: uvm/pmap work done by rmind@, and MP Xen
work of cherry@.

No regression observed on suspend/restore.
 1.27.2.2  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")
 1.27.2.1  30-Oct-2012  yamt sync with head
 1.30.2.3  03-Dec-2017  jdolecek update from HEAD
 1.30.2.2  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.30.2.1  12-Sep-2012  tls Initial snapshot of work to eliminate 64K MAXPHYS. Basically works for
physio (I/O to raw devices); needs more doing to get it going with the
filesystems, but it shouldn't damage data.

All work's been done on amd64 so far. Not hard to add support to other
ports. If others want to pitch in, one very helpful thing would be to
sort out when and how IDE disks can do 128K or larger transfers, and
adjust the various PCI IDE (or at least ahcisata) drivers and wd.c
accordingly -- it would make testing much easier. Another very helpful
thing would be to implement a smart minphys() for RAIDframe along the
lines detailed in the MAXPHYS-NOTES file.
 1.31.22.2  27-Sep-2017  jdolecek change wdc_init_shadow_regs() to accept only struct wdc_regs, it doesn't
touch anything else

factor out the probe-only struct ata_channel initialization to wdcprobe(), to
reduce duplication of logic in individual drivers, and to actually work now
that more init is needed beyond the memset()
 1.31.22.1  24-Apr-2017  jdolecek use ata_queue_alloc() to dynamically allocate ata_queue for ata channel

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