Commit 99cd49bb authored by Haren Myneni's avatar Haren Myneni Committed by Michael Ellerman
Browse files

crypto/nx: Register and unregister VAS interface on PowerVM 



The user space uses /dev/crypto/nx-gzip interface to setup VAS
windows, create paste mapping and close windows. This patch adds
changes to create/remove this interface with VAS register/unregister
functions on PowerVM platform.

Signed-off-by: default avatarHaren Myneni <haren@linux.ibm.com>
Acked-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Acked-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/121ea1f4eb3004f3b8f4fe8abefaecc88b292efd.camel@linux.ibm.com
parent 8c099490

drivers/crypto/nx/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/crypto/nx/nx-common-pseries.c

+8 −0
Original line number Diff line number Diff line
@@ -1231,6 +1231,12 @@ 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;

}
@@ -1241,6 +1247,8 @@ 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);