Commit Graph

25 Commits

Author SHA1 Message Date
soren 9e129fde67 Add ATA SMART reporting support from Ben Collver in kern/12787. 2002-08-05 23:29:27 +00:00
bouyer cd3578d7ef More copyright fixes, pointed out by Thomas. Thanks ! 2002-04-23 20:41:13 +00:00
bouyer 10b49b13b9 In wdc_exec_command(), for data commands, read the status register after
the data transfer. This is mandatory for data out commands (although none are
used for now), and not forbiddend for data in commands. Also record if we
did transfers any data.
May solve kern/16159 by making the probe more robust in face of fake identify.
2002-04-09 21:17:53 +00:00
bouyer bfc80822c7 Update my copyrigth. 2001-12-03 00:20:22 +00:00
bouyer 4ca5497111 Allow wd to attach to something else than wdc/pciide (like USB<->ATA bridges):
- move some functions from ata.c to ata_wdc.c or wdc.c.
- add callbacks to struct ata_bustype so that wd.c doesn't call directly
  functions from the lower level driver.
2001-12-03 00:11:15 +00:00
bouyer 4809ad42cb Clean up attach of wd/atapibus:
kill ata_atapi_attach. Change atapibus to use a struct scsipi_channel instead
of ata_atapi_attach as attach arch. Create a ata_device, compatible with
scsipi_channel, to attach wd.
2001-12-02 22:44:32 +00:00
bouyer cd8d64fe2b For ATAPI tape drives, poll for DSC (using a callout), to get the real
status of the command, and make sure the drive is ready for the next one.
2001-12-01 00:00:29 +00:00
bouyer 937a7a3ed9 Pull up the thorpej_scsipi branch to main branch.
This is a completely rewritten scsipi_xfer execution engine, and the
associated changes to HBA drivers. Overview of changes & features:
- All xfers are queued in the mid-layer, rather than doing so in an
  ad-hoc fashion in individual adapter drivers.
- Adapter/channel resource management in the mid-layer, avoids even trying
  to start running an xfer if the adapter/channel doesn't have the resources.
- Better communication between the mid-layer and the adapters.
- Asynchronous event notification mechanism from adapter to mid-layer and
  peripherals.
- Better peripheral queue management: freeze/thaw, sorted requeueing during
  recovery, etc.
- Clean separation of peripherals, adapters, and adapter channels (no more
  scsipi_link).
- Kernel thread for each scsipi_channel makes error recovery much easier
  (no more dealing with interrupt context when recovering from an error).
- Mid-layer support for tagged queueing: commands can have the tag type
  set explicitly, tag IDs are allocated in the mid-layer (thus eliminating
  the need to use buggy tag ID allocation schemes in many adapter drivers).
- support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command
  will be requeued, or a REQUEST SENSE will be sent as appropriate.

Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge
2001-04-25 17:53:04 +00:00
bouyer 92a5f4d724 Sync my copyrigth notice 2000-05-15 08:32:07 +00:00
augustss 7797648425 Change the initial field in struct ata_atapi_attach and struct scsipi_link
slightly to allow scsibus and atapibus to attach to the same device.
Furthermore, only attach a scsibus when the bus type is BUS_SCSI.
2000-04-02 17:25:52 +00:00
bouyer 26f6c9a9cf - DMA code cleanup: pciide_dma_finish() doesn't stop/unload the current DMA op
if an IRQ was not detected, unless the force flag was given. Use this to
  detect if the IRQ was for us (closer to shared IRQ for controllers which
  don't have their own IRQ handler in pciide.c) and to poll for DMA xfer.
  Also makes the timeout recovery code simpler.
- ATAPI cleanup: don't call controller-specific functions from atapiconf.c
  (wdc_*), so that it's possible to attach an atapibus to something else
  than a wdc/pciide (Hi Lennart :).
  Overload struct scsi_adapter with struct atapi_adapter, defined
  as struct scsi_adapter + atapi-specific callbacks. scsipi_link still points
  to an scsi_adapter, atapi code casts it to atapi_adapter if needed.
  Move atapi_softc to atapiconf.h so that it can be used by the underlying
  controller code (e.g. atapi_wdc.c).
  Add an atapi-specific callback *atapi_probedev(), which probe a drive
  in a controller-specific way, allocate the sc_link and fills in the
  ataparams if needed. It then calls atapi_probedev() (from atapiconf.c)
  to do the generic initialisations and attach the device.
- While I'm there merge and centralise the state definitions in atavar.h.
  It should now be possible to use a common ata/atapi routine to set the
  drive's modes (will do later).
2000-04-01 14:32:22 +00:00
bouyer 638e1a6958 Improve the downgrade logic:
- If UDMA 2 is failing try UDMA 1 first, it helps in some cases
- downgrade if we get an error in the first 4000 xfers, or if we get
  4 errors in 4000 xfers if the first 4000 went without troubles.

While I'm there commit a local change I have since some time to get my CD
probed: issue a "blanck" IDENTIFY before the one used to detect slave ghosts,
with my drive the first IDENTIFY following a controller reset fails with an
aborted command ...
2000-01-17 00:01:00 +00:00
enami a2369d8e97 Cancel active transfers on aic/wdc detach.
Also makes LS-120 drive works for me again.
1999-10-20 15:22:24 +00:00
bouyer a6365676fa Add a new disk flag: DRIVE_OLD for pre-ATA disks. probe routine will now set
DRIVE_OLD, DRIVE_ATA or DRIVE_ATAPI based on register signatures.
The attach routine will issue a IDENTIFY command for ATA/ATAPI disk,
to detect flase matches by the probe routine.
probe/attach should now be fully compliant with ata-4/ata-5. As a side
effect, ATAPI drives which improperly use ATA register signatures should now
be attached as ATAPI.
1999-03-10 13:11:43 +00:00
bouyer ba74f49e60 Keep track of CRC errors in Ultra-DMA mode. If we noticed a CRC error and we
need to downgrade, downgrade to PIO, as it has been shown if we got CRC errors
in Ultra-DMA mode, we will have silent data corruption in multiword DMA mode
(isn't IDE wonderfull ? :).
Set timeout to 1s for "normal" ata I/O, to minimise the effects of missed
interrupts.
1999-03-07 14:02:53 +00:00
bouyer ce870816e0 Cosmetic changes, from Soren S. Jorvan. 1999-01-29 11:36:20 +00:00
bouyer a1471db64a move wd.c:print_wderror() to ata.c:ata_perror().
In wdc_probe_caps() add code to guess the ATA revision supported (if
ATA4 if Ultra-DMA, ATA2 if PIO mode > 2). We can't rely on param.atap_ata_major
here, at last one Ultra-DMA drive claims to support only ATA-3.
Use the ATA version in ata_perror(), and to try a flush cache command
in a shutdown hook for IDE drives.
1999-01-18 20:06:24 +00:00
bouyer c37bf0ccb4 Keep track of DMA errors, and downgrade the transert mode (UDMA ->DMA,
DMA->PIO) in case of 2 consecutive errors. Don't downgrade if the
PIO/DMA/UDMA modes were forced by a config flag.
1998-12-16 13:02:03 +00:00
bouyer c10f6edafc AT_ERROR should be different from AT_TIMEOUT. pointed out by Matthias Drochner. 1998-12-04 11:17:54 +00:00
bouyer 45675ab14b - change drive_flags from u_int8_t to u_int16_t
- keep the modes supported by the drive in struct ata_drive_datas (will be
  later used for downgrading the DMA/PIO mode on error)
- use config flags to force/disable PIO/DMA/UDMA modes
- For the CMD PCI0643/6 setup DMA mode to DMA Read multiple.
1998-12-02 10:52:24 +00:00
kenh 48f2e0ae6c Add a new flag to wdc_command: ATA_READREG. This will indicate that all
device registers should be read back into the wdc_command structure after
successfull command completion.  Use this this in wdioctl() for
ATAIOCCOMMAND.
1998-11-23 23:00:26 +00:00
thorpej d0a4fb616f Implement controller reference counting on ATA devices. 1998-11-20 01:23:52 +00:00
bouyer a7c841cfbc Donc reset the disk state to 0 in wd.c, set a flag which will cause it
to be reset to 0 at wdcstart(). This fixes a race condition between
normal I/O and wdioclt().
1998-10-20 17:00:24 +00:00
bouyer e8322de657 Add a new drive flag, DRIVE_MODE, set when the drive properly reported its
PIO/DMA modes. Don't try a SET_FEATURE if it didn't report its mode.
1998-10-13 15:18:46 +00:00
bouyer 19fddaeeb5 Merge bouyer-ide 1998-10-12 16:09:10 +00:00