diff options
| author |   Dave Jiang <dave.jiang@intel.com> | 2022-01-24 09:20:33 -0700 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2022-02-15 17:07:49 +0530 |
| commit | ea7c8f598c323f6ebaf9ddae01fb2a981fe8c56a (patch) | |
| tree | 5b16e400b8da73d05d2d2564dfd397ce58419e6e /drivers/dma/idxd | |
| parent | dmaengine: altera-msgdma: Remove useless DMA-32 fallback configuration (diff) | |
| download | linux-dev-ea7c8f598c323f6ebaf9ddae01fb2a981fe8c56a.tar.xz linux-dev-ea7c8f598c323f6ebaf9ddae01fb2a981fe8c56a.zip | |
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/idxd')
| -rw-r--r-- | drivers/dma/idxd/device.c | 9 |
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; + } } } |