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dmaengine: idxd: reflect shadow copy of traffic class programming

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[ Upstream commit a1fcaf07ec ]

The traffic class are set to -1 at initialization until the user programs
them. If the user choose not to, the driver will program appropriate
defaults. The driver also needs to update the shadowed copies of the values
after doing the programming.

Fixes: c52ca47823 ("dmaengine: idxd: add configuration component of driver")
Reported-by: Yixin Zhang <yixin.zhang@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/158386263076.10898.4586509576813094559.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dave Jiang
2020-03-10 10:50:30 -07:00
committed by Greg Kroah-Hartman
parent f50a08556d
commit dad4044dbb
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/idxd/device.c
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@@ -584,11 +584,11 @@ static void idxd_group_flags_setup(struct idxd_device *idxd)
struct idxd_group *group = &idxd->groups[i];
if (group->tc_a == -1)
group->grpcfg.flags.tc_a = 0;
group->tc_a = group->grpcfg.flags.tc_a = 0;
else
group->grpcfg.flags.tc_a = group->tc_a;
if (group->tc_b == -1)
group->grpcfg.flags.tc_b = 1;
group->tc_b = group->grpcfg.flags.tc_b = 1;
else
group->grpcfg.flags.tc_b = group->tc_b;
group->grpcfg.flags.use_token_limit = group->use_token_limit;