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path: root/drivers/crypto/nx/nx-842-powernv.c
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Diffstat (limited to 'drivers/crypto/nx/nx-842-powernv.c')
-rw-r--r--drivers/crypto/nx/nx-842-powernv.c42
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);