s390/crypto/prng.c

9 #define KMSG_COMPONENT "prng"
33 MODULE_DESCRIPTION("s390 PRNG interface");
42 MODULE_PARM_DESC(prng_mode, "PRNG mode: 0 - auto, 1 - TDES, 2 - SHA512");
52 MODULE_PARM_DESC(prng_chunk_size, "PRNG read chunk size in bytes");
62 MODULE_PARM_DESC(prng_reseed_limit, "PRNG reseed limit");
226 	pr_debug("prng runs in TDES mode with "  in prng_tdes_instantiate()
241 	/* initialize the PRNG, add 128 bits of entropy */  in prng_tdes_instantiate()
250 	pr_debug("The prng module stopped "  in prng_tdes_deinstantiate()
344 		pr_err("The prng self test state test "  in prng_sha512_selftest()
358 		pr_err("The prng self test data test "  in prng_sha512_selftest()
373 	pr_debug("prng runs in SHA-512 mode "  in prng_sha512_instantiate()
444 	pr_debug("The prng module stopped after running in SHA-512 mode\n");  in prng_sha512_deinstantiate()
545 		/* PRNG only likes multiples of 8 bytes */  in prng_tdes_read()
551 		/* if the CPU supports PRNG stckf is present too */  in prng_tdes_read()
823 	/* check if the CPU has a PRNG */  in prng_init()
831 	/* choose prng mode */  in prng_init()
836 				pr_err("The prng module cannot "  in prng_init()