937a7a3ed9
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 |
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| .. | ||
| apbus_subr.c | ||
| apbus.c | ||
| apbusvar.h | ||
| clock_ap.c | ||
| dmac3.c | ||
| dmac3reg.h | ||
| if_sn_ap.c | ||
| if_sn.c | ||
| if_snreg.h | ||
| if_snvar.h | ||
| if_tlp_ap.c | ||
| kb_ap.c | ||
| ms_ap.c | ||
| spifi.c | ||
| spifireg.h | ||
| xafb.c | ||
| zs_ap.c | ||