Commit Graph

13 Commits

Author SHA1 Message Date
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
petrov 1c9cc1b092 use NCR_F_DMASELECT instead of ncr53c9x_dmaselect 2001-03-29 03:30:19 +00:00
mrg 4c698e84f6 <vm/vm_param.h> -> <uvm/uvm_param.h> 2000-06-26 14:58:58 +00:00
nisimura 4371d91433 Have MI ncr53c9x_attach() the 2nd and 3rd arguments for scsipi_adater
and scsipi_device respectively, with size reduction of ncr53c9x_softc.
Specifying NULL instructs the driver to use default adapter and default
device codes. Every target port has ncr53c9x_attach(sc, NULL, NULL) anyway.
2000-06-05 07:59:50 +00:00
thorpej 5f0577babc Adapt to the new scsipi_adapter interface. 1998-11-19 21:43:00 +00:00
thorpej 29d472f53d Garbage-collect the open_target_lu and close_target_lu entry points from
struct scsipi_adapter; they were not used.

Add a scsipi_ioctl entry point to struct scsipi_adapter.  This will be
used to issue ioctl commands to the host adapters.

Inspired by PR #6090, from Matt Jacob.
1998-10-10 00:28:28 +00:00
pk 29bae173fa Relinquish my copyright claims on this file. 1998-09-05 15:29:35 +00:00
mycroft 129cbf95ee Minor edit. 1998-08-15 05:16:41 +00:00
mycroft b2827b9d36 Assign copyright to TNF. 1998-08-15 04:16:55 +00:00
tsubai 9b047c7c15 Move shutdownhook_establish before the attachment of common parts. 1998-06-19 14:11:32 +00:00
tsubai 6bf20f4c29 Add support for UVM and MACHINE_NEW_NONCONTIG. 1998-06-05 12:22:43 +00:00
tsubai a8b4eda678 Remove unnecessary cache flush. 1998-05-30 06:16:06 +00:00
tsubai 2be6df07c6 Initial import of macppc port. 1998-05-15 10:15:45 +00:00