diff options
Diffstat (limited to 'drivers/crypto/nx/nx-842-powernv.c')
| -rw-r--r-- | drivers/crypto/nx/nx-842-powernv.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c index 33b3b0abf4ae..3750e13d8721 100644 --- a/drivers/crypto/nx/nx-842-powernv.c +++ b/drivers/crypto/nx/nx-842-powernv.c @@ -26,6 +26,8 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Dan Streetman <ddstreet@ieee.org>"); MODULE_DESCRIPTION("842 H/W Compression driver for IBM PowerNV processors"); +MODULE_ALIAS_CRYPTO("842"); +MODULE_ALIAS_CRYPTO("842-nx"); #define WORKMEM_ALIGN (CRB_ALIGN) #define CSB_WAIT_MAX (5000) /* ms */ @@ -344,7 +346,8 @@ static int wait_for_csb(struct nx842_workmem *wmem, } /* successful completion */ - pr_debug_ratelimited("Processed %u bytes in %lu us\n", csb->count, + pr_debug_ratelimited("Processed %u bytes in %lu us\n", + be32_to_cpu(csb->count), (unsigned long)ktime_us_delta(now, start)); return 0; @@ -581,9 +584,29 @@ static struct nx842_driver nx842_powernv_driver = { .decompress = nx842_powernv_decompress, }; +static int nx842_powernv_crypto_init(struct crypto_tfm *tfm) +{ + return nx842_crypto_init(tfm, &nx842_powernv_driver); +} + +static struct crypto_alg nx842_powernv_alg = { + .cra_name = "842", + .cra_driver_name = "842-nx", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, + .cra_ctxsize = sizeof(struct nx842_crypto_ctx), + .cra_module = THIS_MODULE, + .cra_init = nx842_powernv_crypto_init, + .cra_exit = nx842_crypto_exit, + .cra_u = { .compress = { + .coa_compress = nx842_crypto_compress, + .coa_decompress = nx842_crypto_decompress } } +}; + static __init int nx842_powernv_init(void) { struct device_node *dn; + int ret; /* verify workmem size/align restrictions */ BUILD_BUG_ON(WORKMEM_ALIGN % CRB_ALIGN); @@ -594,17 +617,14 @@ static __init int nx842_powernv_init(void) BUILD_BUG_ON(DDE_BUFFER_ALIGN % DDE_BUFFER_SIZE_MULT); BUILD_BUG_ON(DDE_BUFFER_SIZE_MULT % DDE_BUFFER_LAST_MULT); - pr_info("loading\n"); - for_each_compatible_node(dn, NULL, "ibm,power-nx") nx842_powernv_probe(dn); - if (!nx842_ct) { - pr_err("no coprocessors found\n"); + if (!nx842_ct) return -ENODEV; - } - if (!nx842_platform_driver_set(&nx842_powernv_driver)) { + ret = crypto_register_alg(&nx842_powernv_alg); + if (ret) { struct nx842_coproc *coproc, *n; list_for_each_entry_safe(coproc, n, &nx842_coprocs, list) { @@ -612,11 +632,9 @@ static __init int nx842_powernv_init(void) kfree(coproc); } - return -EEXIST; + return ret; } - pr_info("loaded\n"); - return 0; } module_init(nx842_powernv_init); @@ -625,13 +643,11 @@ static void __exit nx842_powernv_exit(void) { struct nx842_coproc *coproc, *n; - nx842_platform_driver_unset(&nx842_powernv_driver); + crypto_unregister_alg(&nx842_powernv_alg); list_for_each_entry_safe(coproc, n, &nx842_coprocs, list) { list_del(&coproc->list); kfree(coproc); } - - pr_info("unloaded\n"); } module_exit(nx842_powernv_exit); |