fix typos in comments, mainly basicly -> basically.

Don't declare ISA specific aic_isa_attach() in MI header, and
also make local functions in aic_isa.c static.

Split device_t/softc. Tested on AHA-1520B at ISA and ISAPnP.

XXX: ISA attachment shouldn't match cards in ISAPnP mode.

struct device * -> device_t, no functional changes intended.

branches: 1.13.4; 1.13.18;
use aprint_*_dev and device_xname

branches: 1.12.70;
merge ktrace-lwp.

Use "struct scsipi_command" in internal command structures so that
we have enough space for 16-byte CDBs.

Use ANSI function decls and more use of static.

branches: 1.9.22;
delint

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

branches: 1.7.6;
- Test the generic device active flag instead of home grown one.
- Test also it in wdcintr.

Remove tinfo_t symbols which result in never used global common variables.

Cancel active transfers on aic/wdc detach.
Also makes LS-120 drive works for me again.

branches: 1.4.2; 1.4.4; 1.4.6;
Allow to detach aic, but turned off by default. The patchable variable
aic_dodetach controlls this.

Adapt to the new scsipi_adapter interface.

Remove interrupt handler cookie from aic_softc.

branches: 1.1.2;
From Enami Tsugutomo: Busify and split the aic6360 driver.