Commit Graph

15 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
dante fa845b7795 Fix a off-by-one error in sc_freeze_dev[].
Thanks to kwesterback@home.com
2000-07-03 18:14:18 +00:00
dante 39c7c9aff6 Change AdwInitCarriers in adwmcode.c
Add new AdwInitCarriers prototype in adwmcode.h
All of the supported adapters are now initialized calling a unique common
    function
2000-05-27 18:24:50 +00:00
dante 3d7bdc4c94 Fix a bug introduced in last commit which caused a painc due to
re-enqueueing an already free ccb.
Prepare the background to have a unique initialization function for
    all of the supported host adapters.
Rename a lot of #define in a more sane way.
Move Carriers initialization and defines in adwmcode.{c,h}
Don't lose Carrier nodes in case of a BUS/Chip reset explicitly invoked
    after a DMA failure.

XXX - DMA failure still arise when AdvanSys U[2]W host adapters are used
      in conjunction with Intel 82443BX Host Bridge/Controller (rev. 0x03).
      !?!Have to understand why!?!
2000-05-26 15:13:43 +00:00
dante 94cd08a535 Handle better the status codes.
Add a way to instruct the upper layer to don't bother w/ new requests if/when a device queue is full/busy or the device is unavailabale at that time
Use scsipi_inquiry_data instead of its own inquiry structure
2000-05-14 18:25:49 +00:00
dante 8c999651eb Change adw_isr_callback() status handler
Add a catch for DMA Error which show up on Intel 82443BX Host Bridge/Controller (rev. 0x03). This doesn't fix the problem, but reset the SCSI bus and reinitialize the host adapter
Minor cosmetical changes

Thanks a lot to Greg Oster and Andan Lauber
2000-05-10 21:22:34 +00:00
dante 6644e670f7 Change the way ADW_CARRIER is allocated and handled.
Increased ADW_MAX_CCB to 63 and ADW_MAX_CARRIER to 253
Print WDTR/SDTR negotiation result per target
Protect AdvISR() inside splbio()/splx() pair
Add a pending queue to keep track of all the CCBs that are being executed by the host adapter.
Rewrote timeout handler in a more efficient way:
    After 3 timeout now the SCSI is resetted and all pending queues not completed are now reenqueued in the waiting queue so to get executed just after the BUS Reset (hoping that resetting the SCSI BUS and reinitializing the adapter could solve the problem).
2000-05-08 17:21:33 +00:00
dante 1dbea6c0f9 Add new microcode for all of the supported boards.
Fix minor glitches.
Add preliminary support for ASB-3940U3W host adapters; it might work w/ autotermination on.
ASB-3940U3W support is not yet tested due to lack of board.
2000-04-30 18:52:14 +00:00
dante cbacaf54d7 Add AdvanSys U2W (LVD) boards support 2000-02-03 20:28:26 +00:00
thorpej a01d72e890 Fix several LP64 problems, and clear up kernel pointer vs. physical
address confusion.  This driver now works on the Alpha.
1999-08-16 02:01:11 +00:00
dante 199f99d192 fix second level interrupt handler to allow 64 bits pointers 1999-03-04 20:15:53 +00:00
dante eab52d94b3 Fixed AdvanSys Ultra Wide driver to work on Alpha. 1999-02-23 20:18:16 +00:00
thorpej 7a9cc5bfbc Update for changed scsipi_xfer struct. 1998-12-09 08:37:50 +00:00
thorpej 5f0577babc Adapt to the new scsipi_adapter interface. 1998-11-19 21:43:00 +00:00
dante da0a3e615e Add support for AdvanSys Ultra Wide boards ABP-9xxUW 1998-09-26 16:09:32 +00:00