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Diffstat (limited to 'drivers/crypto/bcm/util.c')
-rw-r--r--drivers/crypto/bcm/util.c115
1 files changed, 32 insertions, 83 deletions
diff --git a/drivers/crypto/bcm/util.c b/drivers/crypto/bcm/util.c
index 430c5570ea87..d5d9cabea55a 100644
--- a/drivers/crypto/bcm/util.c
+++ b/drivers/crypto/bcm/util.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2016 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation (the "GPL").
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 (GPLv2) for more details.
- *
- * You should have received a copy of the GNU General Public License
- * version 2 (GPLv2) along with this source code.
*/
#include <linux/debugfs.h>
@@ -130,8 +119,8 @@ int spu_sg_count(struct scatterlist *sg_list, unsigned int skip, int nbytes)
* @from_skip: number of bytes to skip in from_sg. Non-zero when previous
* request included part of the buffer in entry in from_sg.
* Assumes from_skip < from_sg->length.
- * @from_nents number of entries in from_sg
- * @length number of bytes to copy. may reach this limit before exhausting
+ * @from_nents: number of entries in from_sg
+ * @length: number of bytes to copy. may reach this limit before exhausting
* from_sg.
*
* Copies the entries themselves, not the data in the entries. Assumes to_sg has
@@ -201,46 +190,6 @@ struct sdesc {
char ctx[];
};
-/* do a synchronous decrypt operation */
-int do_decrypt(char *alg_name,
- void *key_ptr, unsigned int key_len,
- void *iv_ptr, void *src_ptr, void *dst_ptr,
- unsigned int block_len)
-{
- struct scatterlist sg_in[1], sg_out[1];
- struct crypto_blkcipher *tfm =
- crypto_alloc_blkcipher(alg_name, 0, CRYPTO_ALG_ASYNC);
- struct blkcipher_desc desc = {.tfm = tfm, .flags = 0 };
- int ret = 0;
- void *iv;
- int ivsize;
-
- flow_log("%s() name:%s block_len:%u\n", __func__, alg_name, block_len);
-
- if (IS_ERR(tfm))
- return PTR_ERR(tfm);
-
- crypto_blkcipher_setkey((void *)tfm, key_ptr, key_len);
-
- sg_init_table(sg_in, 1);
- sg_set_buf(sg_in, src_ptr, block_len);
-
- sg_init_table(sg_out, 1);
- sg_set_buf(sg_out, dst_ptr, block_len);
-
- iv = crypto_blkcipher_crt(tfm)->iv;
- ivsize = crypto_blkcipher_ivsize(tfm);
- memcpy(iv, iv_ptr, ivsize);
-
- ret = crypto_blkcipher_decrypt(&desc, sg_out, sg_in, block_len);
- crypto_free_blkcipher(tfm);
-
- if (ret < 0)
- pr_err("aes_decrypt failed %d\n", ret);
-
- return ret;
-}
-
/**
* do_shash() - Do a synchronous hash operation in software
* @name: The name of the hash algorithm
@@ -271,7 +220,7 @@ int do_shash(unsigned char *name, unsigned char *result,
hash = crypto_alloc_shash(name, 0, 0);
if (IS_ERR(hash)) {
rc = PTR_ERR(hash);
- pr_err("%s: Crypto %s allocation error %d", __func__, name, rc);
+ pr_err("%s: Crypto %s allocation error %d\n", __func__, name, rc);
return rc;
}
@@ -279,40 +228,38 @@ int do_shash(unsigned char *name, unsigned char *result,
sdesc = kmalloc(size, GFP_KERNEL);
if (!sdesc) {
rc = -ENOMEM;
- pr_err("%s: Memory allocation failure", __func__);
goto do_shash_err;
}
sdesc->shash.tfm = hash;
- sdesc->shash.flags = 0x0;
if (key_len > 0) {
rc = crypto_shash_setkey(hash, key, key_len);
if (rc) {
- pr_err("%s: Could not setkey %s shash", __func__, name);
+ pr_err("%s: Could not setkey %s shash\n", __func__, name);
goto do_shash_err;
}
}
rc = crypto_shash_init(&sdesc->shash);
if (rc) {
- pr_err("%s: Could not init %s shash", __func__, name);
+ pr_err("%s: Could not init %s shash\n", __func__, name);
goto do_shash_err;
}
rc = crypto_shash_update(&sdesc->shash, data1, data1_len);
if (rc) {
- pr_err("%s: Could not update1", __func__);
+ pr_err("%s: Could not update1\n", __func__);
goto do_shash_err;
}
if (data2 && data2_len) {
rc = crypto_shash_update(&sdesc->shash, data2, data2_len);
if (rc) {
- pr_err("%s: Could not update2", __func__);
+ pr_err("%s: Could not update2\n", __func__);
goto do_shash_err;
}
}
rc = crypto_shash_final(&sdesc->shash, result);
if (rc)
- pr_err("%s: Could not generate %s hash", __func__, name);
+ pr_err("%s: Could not generate %s hash\n", __func__, name);
do_shash_err:
crypto_free_shash(hash);
@@ -321,6 +268,7 @@ do_shash_err:
return rc;
}
+#ifdef DEBUG
/* Dump len bytes of a scatterlist starting at skip bytes into the sg */
void __dump_sg(struct scatterlist *sg, unsigned int skip, unsigned int len)
{
@@ -342,6 +290,7 @@ void __dump_sg(struct scatterlist *sg, unsigned int skip, unsigned int len)
if (debug_logging_sleep)
msleep(debug_logging_sleep);
}
+#endif
/* Returns the name for a given cipher alg/mode */
char *spu_alg_name(enum spu_cipher_alg alg, enum spu_cipher_mode mode)
@@ -401,7 +350,7 @@ char *spu_alg_name(enum spu_cipher_alg alg, enum spu_cipher_mode mode)
static ssize_t spu_debugfs_read(struct file *filp, char __user *ubuf,
size_t count, loff_t *offp)
{
- struct device_private *ipriv;
+ struct bcm_device_private *ipriv;
char *buf;
ssize_t ret, out_offset, out_count;
int i;
@@ -419,88 +368,88 @@ static ssize_t spu_debugfs_read(struct file *filp, char __user *ubuf,
ipriv = filp->private_data;
out_offset = 0;
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Number of SPUs.........%u\n",
ipriv->spu.num_spu);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Current sessions.......%u\n",
atomic_read(&ipriv->session_count));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Session count..........%u\n",
atomic_read(&ipriv->stream_count));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Cipher setkey..........%u\n",
atomic_read(&ipriv->setkey_cnt[SPU_OP_CIPHER]));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Cipher Ops.............%u\n",
atomic_read(&ipriv->op_counts[SPU_OP_CIPHER]));
for (alg = 0; alg < CIPHER_ALG_LAST; alg++) {
for (mode = 0; mode < CIPHER_MODE_LAST; mode++) {
op_cnt = atomic_read(&ipriv->cipher_cnt[alg][mode]);
if (op_cnt) {
- out_offset += snprintf(buf + out_offset,
+ out_offset += scnprintf(buf + out_offset,
out_count - out_offset,
" %-13s%11u\n",
spu_alg_name(alg, mode), op_cnt);
}
}
}
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Hash Ops...............%u\n",
atomic_read(&ipriv->op_counts[SPU_OP_HASH]));
for (alg = 0; alg < HASH_ALG_LAST; alg++) {
op_cnt = atomic_read(&ipriv->hash_cnt[alg]);
if (op_cnt) {
- out_offset += snprintf(buf + out_offset,
+ out_offset += scnprintf(buf + out_offset,
out_count - out_offset,
" %-13s%11u\n",
hash_alg_name[alg], op_cnt);
}
}
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"HMAC setkey............%u\n",
atomic_read(&ipriv->setkey_cnt[SPU_OP_HMAC]));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"HMAC Ops...............%u\n",
atomic_read(&ipriv->op_counts[SPU_OP_HMAC]));
for (alg = 0; alg < HASH_ALG_LAST; alg++) {
op_cnt = atomic_read(&ipriv->hmac_cnt[alg]);
if (op_cnt) {
- out_offset += snprintf(buf + out_offset,
+ out_offset += scnprintf(buf + out_offset,
out_count - out_offset,
" %-13s%11u\n",
hash_alg_name[alg], op_cnt);
}
}
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"AEAD setkey............%u\n",
atomic_read(&ipriv->setkey_cnt[SPU_OP_AEAD]));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"AEAD Ops...............%u\n",
atomic_read(&ipriv->op_counts[SPU_OP_AEAD]));
for (alg = 0; alg < AEAD_TYPE_LAST; alg++) {
op_cnt = atomic_read(&ipriv->aead_cnt[alg]);
if (op_cnt) {
- out_offset += snprintf(buf + out_offset,
+ out_offset += scnprintf(buf + out_offset,
out_count - out_offset,
" %-13s%11u\n",
aead_alg_name[alg], op_cnt);
}
}
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Bytes of req data......%llu\n",
(u64)atomic64_read(&ipriv->bytes_out));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Bytes of resp data.....%llu\n",
(u64)atomic64_read(&ipriv->bytes_in));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Mailbox full...........%u\n",
atomic_read(&ipriv->mb_no_spc));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Mailbox send failures..%u\n",
atomic_read(&ipriv->mb_send_fail));
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ out_offset += scnprintf(buf + out_offset, out_count - out_offset,
"Check ICV errors.......%u\n",
atomic_read(&ipriv->bad_icv));
if (ipriv->spu.spu_type == SPU_TYPE_SPUM)
@@ -508,7 +457,7 @@ static ssize_t spu_debugfs_read(struct file *filp, char __user *ubuf,
spu_ofifo_ctrl = ioread32(ipriv->spu.reg_vbase[i] +
SPU_OFIFO_CTRL);
fifo_len = spu_ofifo_ctrl & SPU_FIFO_WATERMARK;
- out_offset += snprintf(buf + out_offset,
+ out_offset += scnprintf(buf + out_offset,
out_count - out_offset,
"SPU %d output FIFO high water.....%u\n",
i, fifo_len);
generated by cgit (git 2.34.1) at 2025-12-24 22:43:16 +0000