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authorDave Jiang2022-01-24 09:20:33 -0700
committerVinod Koul2022-02-15 17:07:49 +0530
commitea7c8f598c323f6ebaf9ddae01fb2a981fe8c56a (patch)
tree5b16e400b8da73d05d2d2564dfd397ce58419e6e /drivers/dma
parent7326bf800a47e5dabf574abe48dc7d6aa95ee7a2 (diff)
dmaengine: idxd: restore traffic class defaults after wq reset
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: ade8a86b512c ("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>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/idxd/device.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index 573ad8b86804..3061fe857d69 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -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;
+ }
}
}