Commit Graph

18 Commits

Author SHA1 Message Date
lukem 2565646230 don't need <sys/types.h> when including <sys/param.h> 2001-11-15 09:47:59 +00:00
lukem 7ba10b3532 add RCSIDs 2001-11-13 06:54:32 +00:00
thorpej aafd882086 bcmp -> memcmp 2001-07-18 18:27:08 +00:00
thorpej 38bdc75312 bcopy -> memcpy 2001-07-18 18:25:41 +00:00
thorpej 03746a443a bzero -> memset 2001-07-18 18:21:04 +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
enami 5a4b9fcbbf Prevent a process being swapped out during I/O if the data buffer is
allocated on stack.  This potential problem is noticed by Noriyuki Soda
and the idea and sample code to fix is given by Jason R. Thorpe.
2000-06-09 08:54:19 +00:00
thorpej 16a9d90e17 Cleanup the scsipi_xfer flags:
- `flags' is now gone, replaced with `xs_control' and `xs_status'.
- Massive cleanup of the control flags.  Now we explicitly say that
  a job is to complete asynchronously, rather than relying on side-effects,
  and use a new flag to now that device discovery is being performed.
- Do SCSI device discovery interrupt-driven.
1999-09-30 22:57:52 +00:00
mycroft 7a304dfe1b If scsipi_command() fails, always print out the error code. 1999-04-05 19:19:34 +00:00
thorpej 75e554c27d Implement two macros, scsipi_command() and scsipi_command_direct(), and
use them to hide the structure of the function pointers we jump through
to issue a command.
1997-10-18 19:50:51 +00:00
enami d7d845c3d2 Cosmetic changes to keep coding style consistency in this directory;
- Indent with tab of width 8.
- Use four column to indent continuation line.
- Fold long line if possible.
- Use return (xx) instead of return xx.
- Compare pointer against NULL instead of testing like boolean.
- Delete whitespace at the end of line.
- Delete whitespace in front of function call operator.
- Delete whitespace after cast.
- Dereference a pointer to function explicitly.
- Add an empty line after local variable declaration.
- Use NULL instead of (char *)0.
- Dont use block for single statement.
1997-10-01 01:18:38 +00:00
bouyer 6f3bab1f59 Merge scsipi branch in the mainline. This add support for ATAPI devices
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.
1997-08-27 11:22:52 +00:00
christos 9a2c8cf28c revert previous kprintf change 1996-10-12 23:23:13 +00:00
christos 9beb92aad7 printf -> kprintf, sprintf -> ksprintf 1996-10-10 23:32:59 +00:00
christos 0efbe64fb8 Cleanup the rest of the SCSIDEBUG printfs. From Bernd Ernesti. 1996-05-05 19:52:50 +00:00
christos 94d26d3017 - Eliminate scsi_conf.h
- Fix prototypes
- Fix PR/2248 [Problems with HP scanjet...]
1996-03-30 21:47:00 +00:00
mycroft e819063285 Define a full set of [234][bl]tol() and lto[234][bl]() conversion functions,
inlined.
Use sized types in protocol structures.
Make the definition of scsi_sense_data less ugly.
1996-03-19 03:05:15 +00:00
mycroft 294879d4ee Add SCSI scanner support by Kenneth Stailey and Joachim Koenig-Baltes,
hacked a bit.  Needs more work.
1996-02-18 20:32:40 +00:00