Excerpts from Haren Myneni's message of May 21, 2021 7:41 pm:
>
> Changes to create /dev/crypto/nx-gzip interface with VAS register
> and to remove this interface with VAS unregister.
>
Could you include why the change is done, or what goes wrong without it?
Thanks,
Nick
> Signed-off-by: Haren Myneni <haren@xxxxxxxxxxxxx>
> Acked-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> ---
> drivers/crypto/nx/Kconfig | 1 +
> drivers/crypto/nx/nx-common-pseries.c | 9 +++++++++
> 2 files changed, 10 insertions(+)
>
> diff --git a/drivers/crypto/nx/Kconfig b/drivers/crypto/nx/Kconfig
> index 23e3d0160e67..2a35e0e785bd 100644
> --- a/drivers/crypto/nx/Kconfig
> +++ b/drivers/crypto/nx/Kconfig
> @@ -29,6 +29,7 @@ if CRYPTO_DEV_NX_COMPRESS
> config CRYPTO_DEV_NX_COMPRESS_PSERIES
> tristate "Compression acceleration support on pSeries platform"
> depends on PPC_PSERIES && IBMVIO
> + depends on PPC_VAS
> default y
> help
> Support for PowerPC Nest (NX) compression acceleration. This
> diff --git a/drivers/crypto/nx/nx-common-pseries.c b/drivers/crypto/nx/nx-common-pseries.c
> index cc8dd3072b8b..9a40fca8a9e6 100644
> --- a/drivers/crypto/nx/nx-common-pseries.c
> +++ b/drivers/crypto/nx/nx-common-pseries.c
> @@ -9,6 +9,7 @@
> */
>
> #include <asm/vio.h>
> +#include <asm/vas.h>
>
> #include "nx-842.h"
> #include "nx_csbcpb.h" /* struct nx_csbcpb */
> @@ -1101,6 +1102,12 @@ static int __init nx842_pseries_init(void)
> return ret;
> }
>
> + ret = vas_register_api_pseries(THIS_MODULE, VAS_COP_TYPE_GZIP,
> + "nx-gzip");
> +
> + if (ret)
> + pr_err("NX-GZIP is not supported. Returned=%d\n", ret);
> +
> return 0;
> }
>
> @@ -1111,6 +1118,8 @@ static void __exit nx842_pseries_exit(void)
> struct nx842_devdata *old_devdata;
> unsigned long flags;
>
> + vas_unregister_api_pseries();
> +
> crypto_unregister_alg(&nx842_pseries_alg);
>
> spin_lock_irqsave(&devdata_mutex, flags);
> --
> 2.18.2
>
>
>
