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Code Issues Releases Wiki Activity

dmaengine: idxd: restore traffic class defaults after wq reset

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When clearing the group configurations, the driver fails to restore the
default setting for DSA 1.x based devices. Add defaults in
idxd_groups_clear_state() for traffic class configuration.

Fixes: ade8a86b51 ("dmaengine: idxd: Set defaults for GRPCFG traffic class")
Reported-by: Binuraj Ravindran <binuraj.ravindran@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164304123369.824298.6952463420266592087.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Dave Jiang 2022-01-24 09:20:33 -07:00 committed by Vinod Koul
parent 7326bf800a
commit ea7c8f598c
1 changed files with 7 additions and 2 deletions
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9
drivers/dma/idxd/device.c
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@ -681,8 +681,13 @@ static void idxd_groups_clear_state(struct idxd_device *idxd)
group->use_rdbuf_limit = false;
group->rdbufs_allowed = 0;
group->rdbufs_reserved = 0;
group->tc_a = -1;
group->tc_b = -1;
if (idxd->hw.version < DEVICE_VERSION_2 && !tc_override) {
group->tc_a = 1;
group->tc_b = 1;
} else {
group->tc_a = -1;
group->tc_b = -1;
}
}
}