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PR/47041 CVS commit: [jdolecek-ncq] src/sys/dev

The following reply was made to PR kern/47041; it has been noted by GNATS.

From: "Jaromir Dolecek" <>
Subject: PR/47041 CVS commit: [jdolecek-ncq] src/sys/dev
Date: Fri, 16 Jun 2017 20:40:49 +0000

 Module Name:	src
 Committed By:	jdolecek
 Date:		Fri Jun 16 20:40:49 UTC 2017
 Modified Files:
 	src/sys/dev/ata [jdolecek-ncq]: ata.c ata_wdc.c atavar.h wd.c
 	src/sys/dev/ic [jdolecek-ncq]: ahcisata_core.c mvsata.c siisata.c wdc.c
 	src/sys/dev/scsipi [jdolecek-ncq]: atapi_wdc.c
 Log Message:
 adjust reset channel and dump paths
 - channel reset now always kills active transfer, even on dump path, but
   now doesn't touch the queued waiting transfers; also kill_xfer hook is
   always called, so that HBA can free any private xfer resources and thus
   the dump request has chance to work
 - kill_xfer routines now always call ata_deactivate_xfer(); added KASSERT()s
   to ata_free_xfer() to expect deactivated xfer
 - when called during channel reset before dump, ata_kill_active() drops
   any queued waiting transfers without processing
 - do not (re)queue any transfers in wddone() when dumping
 - kill AT_RST_NOCMD flag
 This should also hopefully fix the 'polled command has been queued' panic
 as reported in:
 PR kern/11811 by John Hawkinson
 PR kern/47041 by Taylor R Campbell
 PR kern/51979 by Martin Husemann
 dump tested working with piixide(4) and ahci(4). mvsata(4) dump times out,
 but otherwise tested working, will be fixed separately. siisata(4) mechanically
 changed and not tested.
 To generate a diff of this commit:
 cvs rdiff -u -r1.132.8.8 -r1.132.8.9 src/sys/dev/ata/ata.c
 cvs rdiff -u -r1.105.6.3 -r1.105.6.4 src/sys/dev/ata/ata_wdc.c
 cvs rdiff -u -r1.92.8.8 -r1.92.8.9 src/sys/dev/ata/atavar.h
 cvs rdiff -u -r1.428.2.15 -r1.428.2.16 src/sys/dev/ata/wd.c
 cvs rdiff -u -r1.57.6.12 -r1.57.6.13 src/sys/dev/ic/ahcisata_core.c
 cvs rdiff -u -r1.35.6.10 -r1.35.6.11 src/sys/dev/ic/mvsata.c
 cvs rdiff -u -r1.30.4.15 -r1.30.4.16 src/sys/dev/ic/siisata.c
 cvs rdiff -u -r1.283.2.4 -r1.283.2.5 src/sys/dev/ic/wdc.c
 cvs rdiff -u -r1.123.4.4 -r1.123.4.5 src/sys/dev/scsipi/atapi_wdc.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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