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MFC r199263:

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Do not enable tagged queueing if controller reports 0 tags support.
This commit is contained in:
Alexander Motin 2009-11-17 21:26:05 +00:00
parent 99695a07ce
commit dbf0a1cd3e
1 changed files with 2 additions and 1 deletions
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3
sys/cam/ata/ata_xpt.c
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@ -719,7 +719,8 @@ noerror:
/* XXX: If not all tags allowed, we must to tell SIM which are. */
if (path->device->mintags < path->bus->sim->max_tagged_dev_openings)
path->device->mintags = path->device->maxtags = 0;
if (path->device->mintags != 0) {
if (path->device->mintags != 0 &&
path->bus->sim->max_tagged_dev_openings != 0) {
xpt_start_tags(path);
}
ata_device_transport(path);