diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2022-01-24 19:20:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:45 +0300 |
| commit | cad1a3b1f4810ddfb32be9813aec8d051b897734 (patch) | |
| tree | c78d6b6abaaf7bee15641d5cef6db70f3d8bc63b /drivers/dma | |
| parent | 7bebc95196915caa8a020d7cbf736ac278de51b4 (diff) | |
| download | linux-cad1a3b1f4810ddfb32be9813aec8d051b897734.tar.xz | |
dmaengine: idxd: restore traffic class defaults after wq reset
[ Upstream commit ea7c8f598c323f6ebaf9ddae01fb2a981fe8c56a ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/dma')
| -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 ac671b6c0c36..7bd9ac1e93b2 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -703,8 +703,13 @@ 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; + } } } |