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path: root/drivers/staging/sep/sep_crypto.c
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Diffstat (limited to 'drivers/staging/sep/sep_crypto.c')
-rw-r--r--drivers/staging/sep/sep_crypto.c123
1 files changed, 11 insertions, 112 deletions
diff --git a/drivers/staging/sep/sep_crypto.c b/drivers/staging/sep/sep_crypto.c
index 1cc790e9fa07..34710ce56004 100644
--- a/drivers/staging/sep/sep_crypto.c
+++ b/drivers/staging/sep/sep_crypto.c
@@ -44,7 +44,6 @@
#include <linux/poll.h>
#include <linux/wait.h>
#include <linux/pci.h>
-#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/err.h>
#include <linux/device.h>
@@ -85,28 +84,6 @@ static void sep_dequeuer(void *data);
/* TESTING */
/**
- * crypto_sep_dump_message - dump the message that is pending
- * @sep: SEP device
- * This will only print dump if DEBUG is set; it does
- * follow kernel debug print enabling
- */
-static void crypto_sep_dump_message(struct sep_device *sep, void *msg)
-{
-#if 0
- u32 *p;
- u32 *i;
- int count;
-
- p = sep->shared_addr;
- i = (u32 *)msg;
- for (count = 0; count < 10 * 4; count += 4)
- dev_dbg(&sep->pdev->dev,
- "[PID%d] Word %d of the message is %x (local)%x\n",
- current->pid, count/4, *p++, *i++);
-#endif
-}
-
-/**
* sep_do_callback
* @work: pointer to work_struct
* This is what is called by the queue; it is generic so that it
@@ -487,55 +464,6 @@ static int partial_overlap(void *src_ptr, void *dst_ptr, u32 nbytes)
return 0;
}
-/* Debug - prints only if DEBUG is defined; follows kernel debug model */
-static void sep_dump(struct sep_device *sep, char *stg, void *start, int len)
-{
-#if 0
- int ct1;
- u8 *ptt;
-
- dev_dbg(&sep->pdev->dev,
- "Dump of %s starting at %08lx for %08x bytes\n",
- stg, (unsigned long)start, len);
- for (ct1 = 0; ct1 < len; ct1 += 1) {
- ptt = (u8 *)(start + ct1);
- dev_dbg(&sep->pdev->dev, "%02x ", *ptt);
- if (ct1 % 16 == 15)
- dev_dbg(&sep->pdev->dev, "\n");
- }
- dev_dbg(&sep->pdev->dev, "\n");
-#endif
-}
-
-/* Debug - prints only if DEBUG is defined; follows kernel debug model */
-static void sep_dump_sg(struct sep_device *sep, char *stg,
- struct scatterlist *sg)
-{
-#if 0
- int ct1, ct2;
- u8 *ptt;
-
- dev_dbg(&sep->pdev->dev, "Dump of scatterlist %s\n", stg);
-
- ct1 = 0;
- while (sg) {
- dev_dbg(&sep->pdev->dev, "page %x\n size %x", ct1,
- sg->length);
- dev_dbg(&sep->pdev->dev, "phys addr is %lx",
- (unsigned long)sg_phys(sg));
- ptt = sg_virt(sg);
- for (ct2 = 0; ct2 < sg->length; ct2 += 1) {
- dev_dbg(&sep->pdev->dev, "byte %x is %02x\n",
- ct2, (unsigned char)*(ptt + ct2));
- }
-
- ct1 += 1;
- sg = sg_next(sg);
- }
- dev_dbg(&sep->pdev->dev, "\n");
-#endif
-}
-
/* Debug - prints only if DEBUG is defined */
static void sep_dump_ivs(struct ablkcipher_request *req, char *reason)
@@ -807,7 +735,7 @@ end_function:
* @size: size of parameter to copy (in bytes)
* @max_size: size to move up offset; SEP mesg is in word sizes
* @msg_offset: pointer to current offset (is updated)
- * @byte_array: flag ti indicate wheter endian must be changed
+ * @byte_array: flag ti indicate whether endian must be changed
* Copies data into the message area from caller
*/
static void sep_write_msg(struct this_task_ctx *ta_ctx, void *in_addr,
@@ -855,7 +783,7 @@ static void sep_make_header(struct this_task_ctx *ta_ctx, u32 *msg_offset,
* @size: size of parameter to copy (in bytes)
* @max_size: size to move up offset; SEP mesg is in word sizes
* @msg_offset: pointer to current offset (is updated)
- * @byte_array: flag ti indicate wheter endian must be changed
+ * @byte_array: flag ti indicate whether endian must be changed
* Copies data out of the message area to caller
*/
static void sep_read_msg(struct this_task_ctx *ta_ctx, void *in_addr,
@@ -990,7 +918,7 @@ static void sep_clear_out(struct this_task_ctx *ta_ctx)
/**
* The following unlocks the sep and makes it available
* to any other application
- * First, null out crypto entries in sep before relesing it
+ * First, null out crypto entries in sep before releasing it
*/
ta_ctx->sep_used->current_hash_req = NULL;
ta_ctx->sep_used->current_cypher_req = NULL;
@@ -1001,7 +929,7 @@ static void sep_clear_out(struct this_task_ctx *ta_ctx)
ta_ctx->call_status.status = 0;
- /* Remove anything confidentail */
+ /* Remove anything confidential */
memset(ta_ctx->sep_used->shared_addr, 0,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);
@@ -1095,8 +1023,8 @@ static int sep_crypto_take_sep(struct this_task_ctx *ta_ctx)
current->comm, sizeof(current->comm));
if (!ta_ctx->queue_elem) {
- dev_dbg(&sep->pdev->dev, "[PID%d] updating queue"
- " status error\n", current->pid);
+ dev_dbg(&sep->pdev->dev,
+ "[PID%d] updating queue status error\n", current->pid);
return -EINVAL;
}
@@ -1207,7 +1135,7 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
req->nbytes, ta_ctx->walk.blocksize, &new_sg, 1);
if (int_error < 0) {
- dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page eerror\n");
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page error\n");
return -ENOMEM;
} else if (int_error == 1) {
ta_ctx->src_sg = new_sg;
@@ -1238,9 +1166,6 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
/* Key already done; this is for data */
dev_dbg(&ta_ctx->sep_used->pdev->dev, "sending data\n");
- sep_dump_sg(ta_ctx->sep_used,
- "block sg in", ta_ctx->src_sg);
-
/* check for valid data and proper spacing */
src_ptr = sg_virt(ta_ctx->src_sg);
dst_ptr = sg_virt(ta_ctx->dst_sg);
@@ -1362,14 +1287,10 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
sep_write_context(ta_ctx, &msg_offset,
&sctx->des_private_ctx,
sizeof(struct sep_des_private_context));
- sep_dump(ta_ctx->sep_used, "ctx to block des",
- &sctx->des_private_ctx, 40);
} else {
sep_write_context(ta_ctx, &msg_offset,
&sctx->aes_private_ctx,
sizeof(struct sep_aes_private_context));
- sep_dump(ta_ctx->sep_used, "ctx to block aes",
- &sctx->aes_private_ctx, 20);
}
/* conclude message */
@@ -1426,8 +1347,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
}
memcpy(ta_ctx->iv, ta_ctx->walk.iv, SEP_DES_IV_SIZE_BYTES);
- sep_dump(ta_ctx->sep_used, "iv",
- ta_ctx->iv, SEP_DES_IV_SIZE_BYTES);
}
if ((ta_ctx->current_request == AES_CBC) &&
@@ -1438,8 +1357,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
}
memcpy(ta_ctx->iv, ta_ctx->walk.iv, SEP_AES_IV_SIZE_BYTES);
- sep_dump(ta_ctx->sep_used, "iv",
- ta_ctx->iv, SEP_AES_IV_SIZE_BYTES);
}
/* put together message to SEP */
@@ -1452,8 +1369,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
sep_write_msg(ta_ctx, ta_ctx->iv,
SEP_DES_IV_SIZE_BYTES, sizeof(u32) * 4,
&msg_offset, 1);
- sep_dump(ta_ctx->sep_used, "initial IV",
- ta_ctx->walk.iv, SEP_DES_IV_SIZE_BYTES);
} else {
/* Skip if ECB */
msg_offset += 4 * sizeof(u32);
@@ -1465,8 +1380,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
sep_write_msg(ta_ctx, ta_ctx->iv,
SEP_AES_IV_SIZE_BYTES, max_length,
&msg_offset, 1);
- sep_dump(ta_ctx->sep_used, "initial IV",
- ta_ctx->walk.iv, SEP_AES_IV_SIZE_BYTES);
} else {
/* Skip if ECB */
msg_offset += max_length;
@@ -1646,7 +1559,6 @@ static u32 crypto_post_op(struct sep_device *sep)
dev_dbg(&ta_ctx->sep_used->pdev->dev, "crypto post_op\n");
dev_dbg(&ta_ctx->sep_used->pdev->dev, "crypto post_op message dump\n");
- crypto_sep_dump_message(ta_ctx->sep_used, ta_ctx->msg);
/* first bring msg from shared area to local area */
memcpy(ta_ctx->msg, sep->shared_addr,
@@ -1670,16 +1582,10 @@ static u32 crypto_post_op(struct sep_device *sep)
sep_read_context(ta_ctx, &msg_offset,
&sctx->des_private_ctx,
sizeof(struct sep_des_private_context));
-
- sep_dump(ta_ctx->sep_used, "ctx init des",
- &sctx->des_private_ctx, 40);
} else {
sep_read_context(ta_ctx, &msg_offset,
&sctx->aes_private_ctx,
sizeof(struct sep_aes_private_context));
-
- sep_dump(ta_ctx->sep_used, "ctx init aes",
- &sctx->aes_private_ctx, 20);
}
sep_dump_ivs(req, "after sending key to sep\n");
@@ -1758,9 +1664,6 @@ static u32 crypto_post_op(struct sep_device *sep)
sizeof(struct sep_aes_private_context));
}
- sep_dump_sg(ta_ctx->sep_used,
- "block sg out", ta_ctx->dst_sg);
-
/* Copy to correct sg if this block had oddball pages */
if (ta_ctx->dst_sg_hold)
sep_copy_sg(ta_ctx->sep_used,
@@ -1870,7 +1773,7 @@ static u32 hash_update_post_op(struct sep_device *sep)
sizeof(struct sep_hash_private_context));
/**
- * Following is only for finup; if we just completd the
+ * Following is only for finup; if we just completed the
* data portion of finup, we now need to kick off the
* finish portion of finup.
*/
@@ -2011,7 +1914,7 @@ static u32 hash_digest_post_op(struct sep_device *sep)
}
/**
- * The sep_finish function is the function that is schedule (via tasket)
+ * The sep_finish function is the function that is scheduled (via tasklet)
* by the interrupt service routine when the SEP sends and interrupt
* This is only called by the interrupt handler as a tasklet.
*/
@@ -2249,7 +2152,7 @@ static void sep_hash_update(void *data)
head_len = (block_size - int_ctx->prev_update_bytes) % block_size;
tail_len = (req->nbytes - head_len) % block_size;
- /* Make sure all pages are even block */
+ /* Make sure all pages are an even block */
int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
req->nbytes,
block_size, &new_sg, 1);
@@ -2274,8 +2177,6 @@ static void sep_hash_update(void *data)
src_ptr = NULL;
}
- sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg);
-
ta_ctx->dcb_input_data.app_in_address = src_ptr;
ta_ctx->dcb_input_data.data_in_size =
req->nbytes - (head_len + tail_len);
@@ -2482,7 +2383,7 @@ static void sep_hash_digest(void *data)
dev_dbg(&ta_ctx->sep_used->pdev->dev, "block_size is %x\n", block_size);
dev_dbg(&ta_ctx->sep_used->pdev->dev, "tail len is %x\n", tail_len);
- /* Make sure all pages are even block */
+ /* Make sure all pages are an even block */
int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
req->nbytes,
block_size, &new_sg, 1);
@@ -2507,8 +2408,6 @@ static void sep_hash_digest(void *data)
src_ptr = NULL;
}
- sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg);
-
ta_ctx->dcb_input_data.app_in_address = src_ptr;
ta_ctx->dcb_input_data.data_in_size = req->nbytes - tail_len;
ta_ctx->dcb_input_data.app_out_address = NULL;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-01 15:33:26 +0000