On Mon, Jul 07, 2025 at 09:54:17AM +0100, Suman Kumar Chakraborty wrote:
> The TCVCMAP (Traffic Class to Virtual Channel Mapping) field in the
> PVC0CTL and PVC1CTL register controls how traffic classes are mapped to
> virtual channels in QAT GEN6 hardware.
>
> The driver previously wrote a default TCVCMAP value to this register, but
> this configuration was incorrect.
>
> Modify the TCVCMAP configuration to explicitly enable both VC0 and VC1,
> and map Traffic Classes 0 to 7 → VC0 and Traffic Class 8 → VC1.
> Replace FIELD_PREP() with FIELD_MODIFY() to ensure that only the intended
> TCVCMAP field is updated, preserving other bits in the register. This
> prevents unintended overwrites of unrelated configuration fields when
> modifying TC to VC mappings.
>
> Fixes: 17fd7514ae68 ("crypto: qat - add qat_6xxx driver")
> Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@xxxxxxxxx>
> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
> ---
> drivers/crypto/intel/qat/qat_6xxx/adf_6xxx_hw_data.c | 10 +++++-----
> drivers/crypto/intel/qat/qat_6xxx/adf_6xxx_hw_data.h | 2 +-
> 2 files changed, 6 insertions(+), 6 deletions(-)
Patch applied. Thanks.
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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