CVS commit: [jdolecek-ncq] src/sys/dev/ata

["Jaromir Dolecek" <jdolecek%netbsd.org@localhost>]

Module Name:    src
Committed By:   jdolecek
Date:           Wed Jul 19 19:39:28 UTC 2017

Modified Files:
        src/sys/dev/ata [jdolecek-ncq]: ata.c atareg.h atavar.h satafis_subr.c
            satafisvar.h wd.c wdvar.h

Log Message:
tighen and expand error handling, mostly for NCQ use cases:
- make retry timeout callout per xfer, i.e. retry separately
- zero whole bio struct on retry to avoid more stale state
- add a REQUEUE option, which doesn't bump retry count
- add ata_read_log_ext_ncq() for NCQ recovery
- adjust logic for activating xfers - allow next command only when
  it's for same drive, several concurrent are only supported when HBA
  and driver support FIS-based switching
- add new ata_timeout() which handles race between callout_stop()
  and the invokation, add appropriate handling on deactivate/free paths
- stop using ch_status/ch_error in non-wdc code; later it will be dropped
  completely


To generate a diff of this commit:
cvs rdiff -u -r1.132.8.18 -r1.132.8.19 src/sys/dev/ata/ata.c
cvs rdiff -u -r1.43.18.2 -r1.43.18.3 src/sys/dev/ata/atareg.h
cvs rdiff -u -r1.92.8.16 -r1.92.8.17 src/sys/dev/ata/atavar.h
cvs rdiff -u -r1.7.28.2 -r1.7.28.3 src/sys/dev/ata/satafis_subr.c
cvs rdiff -u -r1.3 -r1.3.50.1 src/sys/dev/ata/satafisvar.h
cvs rdiff -u -r1.428.2.25 -r1.428.2.26 src/sys/dev/ata/wd.c
cvs rdiff -u -r1.43.4.6 -r1.43.4.7 src/sys/dev/ata/wdvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.