lkml.org 
[lkml]   [2012]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 6/6] sep: reworked crypto layer
Date
From: Mark A. Allyn <mark.a.allyn@intel.com>

This gets the SEP crypto layer up and running with things like dmcrypt.
It's a fairly big set of changes because it has to rework the whole context
handling system.

[This is picked out of the differences between the upstream driver and
the staging driver. I'm resolving the differences as a series of updates -AC]

Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/staging/sep/sep_crypto.c | 3058 +++++++++++++++++++++-----------------
drivers/staging/sep/sep_crypto.h | 77 +
drivers/staging/sep/sep_dev.h | 3
3 files changed, 1717 insertions(+), 1421 deletions(-)

diff --git a/drivers/staging/sep/sep_crypto.c b/drivers/staging/sep/sep_crypto.c
index a6b0f83..89b6814 100644
--- a/drivers/staging/sep/sep_crypto.c
+++ b/drivers/staging/sep/sep_crypto.c
@@ -88,17 +88,17 @@ static void sep_dequeuer(void *data);
* This will only print dump if DEBUG is set; it does
* follow kernel debug print enabling
*/
-static void crypto_sep_dump_message(struct sep_system_ctx *sctx)
+static void crypto_sep_dump_message(struct sep_device *sep, void *msg)
{
#if 0
u32 *p;
u32 *i;
int count;

- p = sctx->sep_used->shared_addr;
- i = (u32 *)sctx->msg;
- for (count = 0; count < 40 * 4; count += 4)
- dev_dbg(&sctx->sep_used->pdev->dev,
+ 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
@@ -534,6 +534,67 @@ static void sep_dump_sg(struct sep_device *sep, char *stg,
#endif
}

+/* Debug - prints only if DEBUG is defined */
+static void sep_dump_ivs(struct ablkcipher_request *req, char *reason)
+
+ {
+ unsigned char *cptr;
+ struct sep_aes_internal_context *aes_internal;
+ struct sep_des_internal_context *des_internal;
+ int ct1;
+
+ struct this_task_ctx *ta_ctx;
+ struct crypto_ablkcipher *tfm;
+ struct sep_system_ctx *sctx;
+
+ ta_ctx = ablkcipher_request_ctx(req);
+ tfm = crypto_ablkcipher_reqtfm(req);
+ sctx = crypto_ablkcipher_ctx(tfm);
+
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "IV DUMP - %s\n", reason);
+ if ((ta_ctx->current_request == DES_CBC) &&
+ (ta_ctx->des_opmode == SEP_DES_CBC)) {
+
+ des_internal = (struct sep_des_internal_context *)
+ sctx->des_private_ctx.ctx_buf;
+ /* print vendor */
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "sep - vendor iv for DES\n");
+ cptr = (unsigned char *)des_internal->iv_context;
+ for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1)
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "%02x\n", *(cptr + ct1));
+
+ /* print walk */
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "sep - walk from kernel crypto iv for DES\n");
+ cptr = (unsigned char *)ta_ctx->walk.iv;
+ for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1)
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "%02x\n", *(cptr + ct1));
+ } else if ((ta_ctx->current_request == AES_CBC) &&
+ (ta_ctx->aes_opmode == SEP_AES_CBC)) {
+
+ aes_internal = (struct sep_aes_internal_context *)
+ sctx->aes_private_ctx.cbuff;
+ /* print vendor */
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "sep - vendor iv for AES\n");
+ cptr = (unsigned char *)aes_internal->aes_ctx_iv;
+ for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1)
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "%02x\n", *(cptr + ct1));
+
+ /* print walk */
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "sep - walk from kernel crypto iv for AES\n");
+ cptr = (unsigned char *)ta_ctx->walk.iv;
+ for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1)
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "%02x\n", *(cptr + ct1));
+ }
+}
+
/**
* RFC2451: Weak key check
* Returns: 1 (weak), 0 (not weak)
@@ -671,61 +732,61 @@ static u32 sep_sg_nents(struct scatterlist *sg)

/**
* sep_start_msg -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @returns: offset to place for the next word in the message
* Set up pointer in message pool for new message
*/
-static u32 sep_start_msg(struct sep_system_ctx *sctx)
+static u32 sep_start_msg(struct this_task_ctx *ta_ctx)
{
u32 *word_ptr;
- sctx->msg_len_words = 2;
- sctx->msgptr = sctx->msg;
- memset(sctx->msg, 0, SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);
- sctx->msgptr += sizeof(u32) * 2;
- word_ptr = (u32 *)sctx->msgptr;
+ ta_ctx->msg_len_words = 2;
+ ta_ctx->msgptr = ta_ctx->msg;
+ memset(ta_ctx->msg, 0, SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);
+ ta_ctx->msgptr += sizeof(u32) * 2;
+ word_ptr = (u32 *)ta_ctx->msgptr;
*word_ptr = SEP_START_MSG_TOKEN;
return sizeof(u32) * 2;
}

/**
* sep_end_msg -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @messages_offset: current message offset
* Returns: 0 for success; <0 otherwise
* End message; set length and CRC; and
* send interrupt to the SEP
*/
-static void sep_end_msg(struct sep_system_ctx *sctx, u32 msg_offset)
+static void sep_end_msg(struct this_task_ctx *ta_ctx, u32 msg_offset)
{
u32 *word_ptr;
/* Msg size goes into msg after token */
- sctx->msg_len_words = msg_offset / sizeof(u32) + 1;
- word_ptr = (u32 *)sctx->msgptr;
+ ta_ctx->msg_len_words = msg_offset / sizeof(u32) + 1;
+ word_ptr = (u32 *)ta_ctx->msgptr;
word_ptr += 1;
- *word_ptr = sctx->msg_len_words;
+ *word_ptr = ta_ctx->msg_len_words;

/* CRC (currently 0) goes at end of msg */
- word_ptr = (u32 *)(sctx->msgptr + msg_offset);
+ word_ptr = (u32 *)(ta_ctx->msgptr + msg_offset);
*word_ptr = 0;
}

/**
* sep_start_inbound_msg -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @msg_offset: offset to place for the next word in the message
* @returns: 0 for success; error value for failure
* Set up pointer in message pool for inbound message
*/
-static u32 sep_start_inbound_msg(struct sep_system_ctx *sctx, u32 *msg_offset)
+static u32 sep_start_inbound_msg(struct this_task_ctx *ta_ctx, u32 *msg_offset)
{
u32 *word_ptr;
u32 token;
u32 error = SEP_OK;

*msg_offset = sizeof(u32) * 2;
- word_ptr = (u32 *)sctx->msgptr;
+ word_ptr = (u32 *)ta_ctx->msgptr;
token = *word_ptr;
- sctx->msg_len_words = *(word_ptr + 1);
+ ta_ctx->msg_len_words = *(word_ptr + 1);

if (token != SEP_START_MSG_TOKEN) {
error = SEP_INVALID_START;
@@ -739,7 +800,7 @@ end_function:

/**
* sep_write_msg -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @in_addr: pointer to start of parameter
* @size: size of parameter to copy (in bytes)
* @max_size: size to move up offset; SEP mesg is in word sizes
@@ -747,12 +808,12 @@ end_function:
* @byte_array: flag ti indicate wheter endian must be changed
* Copies data into the message area from caller
*/
-static void sep_write_msg(struct sep_system_ctx *sctx, void *in_addr,
+static void sep_write_msg(struct this_task_ctx *ta_ctx, void *in_addr,
u32 size, u32 max_size, u32 *msg_offset, u32 byte_array)
{
u32 *word_ptr;
void *void_ptr;
- void_ptr = sctx->msgptr + *msg_offset;
+ void_ptr = ta_ctx->msgptr + *msg_offset;
word_ptr = (u32 *)void_ptr;
memcpy(void_ptr, in_addr, size);
*msg_offset += max_size;
@@ -767,18 +828,18 @@ static void sep_write_msg(struct sep_system_ctx *sctx, void *in_addr,

/**
* sep_make_header
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @msg_offset: pointer to current offset (is updated)
* @op_code: op code to put into message
* Puts op code into message and updates offset
*/
-static void sep_make_header(struct sep_system_ctx *sctx, u32 *msg_offset,
+static void sep_make_header(struct this_task_ctx *ta_ctx, u32 *msg_offset,
u32 op_code)
{
u32 *word_ptr;

- *msg_offset = sep_start_msg(sctx);
- word_ptr = (u32 *)(sctx->msgptr + *msg_offset);
+ *msg_offset = sep_start_msg(ta_ctx);
+ word_ptr = (u32 *)(ta_ctx->msgptr + *msg_offset);
*word_ptr = op_code;
*msg_offset += sizeof(u32);
}
@@ -787,7 +848,7 @@ static void sep_make_header(struct sep_system_ctx *sctx, u32 *msg_offset,

/**
* sep_read_msg -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @in_addr: pointer to start of parameter
* @size: size of parameter to copy (in bytes)
* @max_size: size to move up offset; SEP mesg is in word sizes
@@ -795,12 +856,12 @@ static void sep_make_header(struct sep_system_ctx *sctx, u32 *msg_offset,
* @byte_array: flag ti indicate wheter endian must be changed
* Copies data out of the message area to caller
*/
-static void sep_read_msg(struct sep_system_ctx *sctx, void *in_addr,
+static void sep_read_msg(struct this_task_ctx *ta_ctx, void *in_addr,
u32 size, u32 max_size, u32 *msg_offset, u32 byte_array)
{
u32 *word_ptr;
void *void_ptr;
- void_ptr = sctx->msgptr + *msg_offset;
+ void_ptr = ta_ctx->msgptr + *msg_offset;
word_ptr = (u32 *)void_ptr;

/* Do we need to manipulate endian? */
@@ -816,28 +877,28 @@ static void sep_read_msg(struct sep_system_ctx *sctx, void *in_addr,

/**
* sep_verify_op -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @op_code: expected op_code
* @msg_offset: pointer to current offset (is updated)
* @returns: 0 for success; error for failure
*/
-static u32 sep_verify_op(struct sep_system_ctx *sctx, u32 op_code,
+static u32 sep_verify_op(struct this_task_ctx *ta_ctx, u32 op_code,
u32 *msg_offset)
{
u32 error;
u32 in_ary[2];

- struct sep_device *sep = sctx->sep_used;
+ struct sep_device *sep = ta_ctx->sep_used;

dev_dbg(&sep->pdev->dev, "dumping return message\n");
- error = sep_start_inbound_msg(sctx, msg_offset);
+ error = sep_start_inbound_msg(ta_ctx, msg_offset);
if (error) {
dev_warn(&sep->pdev->dev,
"sep_start_inbound_msg error\n");
return error;
}

- sep_read_msg(sctx, in_ary, sizeof(u32) * 2, sizeof(u32) * 2,
+ sep_read_msg(ta_ctx, in_ary, sizeof(u32) * 2, sizeof(u32) * 2,
msg_offset, 0);

if (in_ary[0] != op_code) {
@@ -863,7 +924,7 @@ return 0;

/**
* sep_read_context -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @msg_offset: point to current place in SEP msg; is updated
* @dst: pointer to place to put the context
* @len: size of the context structure (differs for crypro/hash)
@@ -873,16 +934,16 @@ return 0;
* it skips over some words in the msg area depending on the size
* of the context
*/
-static void sep_read_context(struct sep_system_ctx *sctx, u32 *msg_offset,
+static void sep_read_context(struct this_task_ctx *ta_ctx, u32 *msg_offset,
void *dst, u32 len)
{
u32 max_length = ((len + 3) / sizeof(u32)) * sizeof(u32);
- sep_read_msg(sctx, dst, len, max_length, msg_offset, 0);
+ sep_read_msg(ta_ctx, dst, len, max_length, msg_offset, 0);
}

/**
* sep_write_context -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* @msg_offset: point to current place in SEP msg; is updated
* @src: pointer to the current context
* @len: size of the context structure (differs for crypro/hash)
@@ -892,76 +953,77 @@ static void sep_read_context(struct sep_system_ctx *sctx, u32 *msg_offset,
* it skips over some words in the msg area depending on the size
* of the context
*/
-static void sep_write_context(struct sep_system_ctx *sctx, u32 *msg_offset,
+static void sep_write_context(struct this_task_ctx *ta_ctx, u32 *msg_offset,
void *src, u32 len)
{
u32 max_length = ((len + 3) / sizeof(u32)) * sizeof(u32);
- sep_write_msg(sctx, src, len, max_length, msg_offset, 0);
+ sep_write_msg(ta_ctx, src, len, max_length, msg_offset, 0);
}

/**
* sep_clear_out -
- * @sctx: pointer to struct sep_system_ctx
+ * @ta_ctx: pointer to struct this_task_ctx
* Clear out crypto related values in sep device structure
* to enable device to be used by anyone; either kernel
* crypto or userspace app via middleware
*/
-static void sep_clear_out(struct sep_system_ctx *sctx)
+static void sep_clear_out(struct this_task_ctx *ta_ctx)
{
- if (sctx->src_sg_hold) {
- sep_free_sg_buf(sctx->src_sg_hold);
- sctx->src_sg_hold = NULL;
+ if (ta_ctx->src_sg_hold) {
+ sep_free_sg_buf(ta_ctx->src_sg_hold);
+ ta_ctx->src_sg_hold = NULL;
}

- if (sctx->dst_sg_hold) {
- sep_free_sg_buf(sctx->dst_sg_hold);
- sctx->dst_sg_hold = NULL;
+ if (ta_ctx->dst_sg_hold) {
+ sep_free_sg_buf(ta_ctx->dst_sg_hold);
+ ta_ctx->dst_sg_hold = NULL;
}

- sctx->src_sg = NULL;
- sctx->dst_sg = NULL;
+ ta_ctx->src_sg = NULL;
+ ta_ctx->dst_sg = NULL;

- sep_free_dma_table_data_handler(sctx->sep_used, &sctx->dma_ctx);
+ sep_free_dma_table_data_handler(ta_ctx->sep_used, &ta_ctx->dma_ctx);

- if (sctx->i_own_sep) {
+ if (ta_ctx->i_own_sep) {
/**
* The following unlocks the sep and makes it available
* to any other application
* First, null out crypto entries in sep before relesing it
*/
- sctx->sep_used->current_hash_req = NULL;
- sctx->sep_used->current_cypher_req = NULL;
- sctx->sep_used->current_request = 0;
- sctx->sep_used->current_hash_stage = 0;
- sctx->sep_used->sctx = NULL;
- sctx->sep_used->in_kernel = 0;
+ ta_ctx->sep_used->current_hash_req = NULL;
+ ta_ctx->sep_used->current_cypher_req = NULL;
+ ta_ctx->sep_used->current_request = 0;
+ ta_ctx->sep_used->current_hash_stage = 0;
+ ta_ctx->sep_used->ta_ctx = NULL;
+ ta_ctx->sep_used->in_kernel = 0;

- sctx->call_status.status = 0;
+ ta_ctx->call_status.status = 0;

/* Remove anything confidentail */
- memset(sctx->sep_used->shared_addr, 0,
+ memset(ta_ctx->sep_used->shared_addr, 0,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

- sep_queue_status_remove(sctx->sep_used, &sctx->queue_elem);
+ sep_queue_status_remove(ta_ctx->sep_used, &ta_ctx->queue_elem);

#ifdef SEP_ENABLE_RUNTIME_PM
- sctx->sep_used->in_use = 0;
- pm_runtime_mark_last_busy(&sctx->sep_used->pdev->dev);
- pm_runtime_put_autosuspend(&sctx->sep_used->pdev->dev);
+ ta_ctx->sep_used->in_use = 0;
+ pm_runtime_mark_last_busy(&ta_ctx->sep_used->pdev->dev);
+ pm_runtime_put_autosuspend(&ta_ctx->sep_used->pdev->dev);
#endif

- clear_bit(SEP_WORKING_LOCK_BIT, &sctx->sep_used->in_use_flags);
- sctx->sep_used->pid_doing_transaction = 0;
+ clear_bit(SEP_WORKING_LOCK_BIT,
+ &ta_ctx->sep_used->in_use_flags);
+ ta_ctx->sep_used->pid_doing_transaction = 0;

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"[PID%d] waking up next transaction\n",
current->pid);

clear_bit(SEP_TRANSACTION_STARTED_LOCK_BIT,
- &sctx->sep_used->in_use_flags);
- wake_up(&sctx->sep_used->event_transactions);
+ &ta_ctx->sep_used->in_use_flags);
+ wake_up(&ta_ctx->sep_used->event_transactions);

- sctx->i_own_sep = 0;
+ ta_ctx->i_own_sep = 0;
}
}

@@ -969,22 +1031,34 @@ static void sep_clear_out(struct sep_system_ctx *sctx)
* Release crypto infrastructure from EINPROGRESS and
* clear sep_dev so that SEP is available to anyone
*/
-static void sep_crypto_release(struct sep_system_ctx *sctx, u32 error)
+static void sep_crypto_release(struct sep_system_ctx *sctx,
+ struct this_task_ctx *ta_ctx, u32 error)
{
- struct ahash_request *hash_req = sctx->current_hash_req;
+ struct ahash_request *hash_req = ta_ctx->current_hash_req;
struct ablkcipher_request *cypher_req =
- sctx->current_cypher_req;
- struct sep_device *sep = sctx->sep_used;
+ ta_ctx->current_cypher_req;
+ struct sep_device *sep = ta_ctx->sep_used;
+
+ sep_clear_out(ta_ctx);

- sep_clear_out(sctx);
+ /**
+ * This may not yet exist depending when we
+ * chose to bail out. If it does exist, set
+ * it to 1
+ */
+ if (ta_ctx->are_we_done_yet != NULL)
+ *ta_ctx->are_we_done_yet = 1;

if (cypher_req != NULL) {
- if (cypher_req->base.complete == NULL) {
- dev_dbg(&sep->pdev->dev,
- "release is null for cypher!");
- } else {
- cypher_req->base.complete(
- &cypher_req->base, error);
+ if ((sctx->key_sent == 1) ||
+ ((error != 0) && (error != -EINPROGRESS))) {
+ if (cypher_req->base.complete == NULL) {
+ dev_dbg(&sep->pdev->dev,
+ "release is null for cypher!");
+ } else {
+ cypher_req->base.complete(
+ &cypher_req->base, error);
+ }
}
}

@@ -1005,20 +1079,20 @@ static void sep_crypto_release(struct sep_system_ctx *sctx, u32 error)
* and it will return 0 if sep is now ours; error value if there
* were problems
*/
-static int sep_crypto_take_sep(struct sep_system_ctx *sctx)
+static int sep_crypto_take_sep(struct this_task_ctx *ta_ctx)
{
- struct sep_device *sep = sctx->sep_used;
+ struct sep_device *sep = ta_ctx->sep_used;
int result;
struct sep_msgarea_hdr *my_msg_header;

- my_msg_header = (struct sep_msgarea_hdr *)sctx->msg;
+ my_msg_header = (struct sep_msgarea_hdr *)ta_ctx->msg;

/* add to status queue */
- sctx->queue_elem = sep_queue_status_add(sep, my_msg_header->opcode,
- sctx->nbytes, current->pid,
+ ta_ctx->queue_elem = sep_queue_status_add(sep, my_msg_header->opcode,
+ ta_ctx->nbytes, current->pid,
current->comm, sizeof(current->comm));

- if (!sctx->queue_elem) {
+ if (!ta_ctx->queue_elem) {
dev_dbg(&sep->pdev->dev, "[PID%d] updating queue"
" status error\n", current->pid);
return -EINVAL;
@@ -1033,48 +1107,61 @@ static int sep_crypto_take_sep(struct sep_system_ctx *sctx)
pm_runtime_get_sync(&sep_dev->pdev->dev);

/* Copy in the message */
- memcpy(sep->shared_addr, sctx->msg,
+ memcpy(sep->shared_addr, ta_ctx->msg,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

/* Copy in the dcb information if there is any */
- if (sctx->dcb_region) {
+ if (ta_ctx->dcb_region) {
result = sep_activate_dcb_dmatables_context(sep,
- &sctx->dcb_region, &sctx->dmatables_region,
- sctx->dma_ctx);
+ &ta_ctx->dcb_region, &ta_ctx->dmatables_region,
+ ta_ctx->dma_ctx);
if (result)
return result;
}

/* Mark the device so we know how to finish the job in the tasklet */
- if (sctx->current_hash_req)
- sep->current_hash_req = sctx->current_hash_req;
+ if (ta_ctx->current_hash_req)
+ sep->current_hash_req = ta_ctx->current_hash_req;
else
- sep->current_cypher_req = sctx->current_cypher_req;
+ sep->current_cypher_req = ta_ctx->current_cypher_req;

- sep->current_request = sctx->current_request;
- sep->current_hash_stage = sctx->current_hash_stage;
- sep->sctx = sctx;
+ sep->current_request = ta_ctx->current_request;
+ sep->current_hash_stage = ta_ctx->current_hash_stage;
+ sep->ta_ctx = ta_ctx;
sep->in_kernel = 1;
- sctx->i_own_sep = 1;
+ ta_ctx->i_own_sep = 1;
+
+ /* need to set bit first to avoid race condition with interrupt */
+ set_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET, &ta_ctx->call_status.status);

result = sep_send_command_handler(sep);

dev_dbg(&sep->pdev->dev, "[PID%d]: sending command to the sep\n",
current->pid);

- if (!result) {
- set_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET,
- &sctx->call_status.status);
+ if (!result)
dev_dbg(&sep->pdev->dev, "[PID%d]: command sent okay\n",
current->pid);
+ else {
+ dev_dbg(&sep->pdev->dev, "[PID%d]: cant send command\n",
+ current->pid);
+ clear_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET,
+ &ta_ctx->call_status.status);
}

return result;
}

-/* This needs to be run as a work queue as it can be put asleep */
-static void sep_crypto_block(void *data)
+/**
+ * This function sets things up for a crypto data block process
+ * This does all preparation, but does not try to grab the
+ * sep
+ * @req: pointer to struct ablkcipher_request
+ * returns: 0 if all went well, non zero if error
+ */
+static int sep_crypto_block_data(struct ablkcipher_request *req)
{
+
int int_error;
u32 msg_offset;
static u32 msg[10];
@@ -1085,318 +1172,440 @@ static void sep_crypto_block(void *data)
ssize_t copy_result;
int result;

- u32 max_length;
struct scatterlist *new_sg;
- struct ablkcipher_request *req;
- struct sep_block_ctx *bctx;
+ struct this_task_ctx *ta_ctx;
struct crypto_ablkcipher *tfm;
struct sep_system_ctx *sctx;

- req = (struct ablkcipher_request *)data;
- bctx = ablkcipher_request_ctx(req);
+ struct sep_des_internal_context *des_internal;
+ struct sep_aes_internal_context *aes_internal;
+
+ ta_ctx = ablkcipher_request_ctx(req);
tfm = crypto_ablkcipher_reqtfm(req);
sctx = crypto_ablkcipher_ctx(tfm);

/* start the walk on scatterlists */
- ablkcipher_walk_init(&bctx->walk, req->src, req->dst, req->nbytes);
- dev_dbg(&sctx->sep_used->pdev->dev, "sep crypto block data size of %x\n",
+ ablkcipher_walk_init(&ta_ctx->walk, req->src, req->dst, req->nbytes);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "sep crypto block data size of %x\n",
req->nbytes);

- int_error = ablkcipher_walk_phys(req, &bctx->walk);
+ int_error = ablkcipher_walk_phys(req, &ta_ctx->walk);
if (int_error) {
- dev_warn(&sctx->sep_used->pdev->dev, "walk phys error %x\n",
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n",
int_error);
- sep_crypto_release(sctx, -ENOMEM);
- return;
- }
-
- /* check iv */
- if (bctx->des_opmode == SEP_DES_CBC) {
- if (!bctx->walk.iv) {
- dev_warn(&sctx->sep_used->pdev->dev, "no iv found\n");
- sep_crypto_release(sctx, -EINVAL);
- return;
- }
-
- memcpy(bctx->iv, bctx->walk.iv, SEP_DES_IV_SIZE_BYTES);
- sep_dump(sctx->sep_used, "iv", bctx->iv, SEP_DES_IV_SIZE_BYTES);
- }
-
- if (bctx->aes_opmode == SEP_AES_CBC) {
- if (!bctx->walk.iv) {
- dev_warn(&sctx->sep_used->pdev->dev, "no iv found\n");
- sep_crypto_release(sctx, -EINVAL);
- return;
- }
-
- memcpy(bctx->iv, bctx->walk.iv, SEP_AES_IV_SIZE_BYTES);
- sep_dump(sctx->sep_used, "iv", bctx->iv, SEP_AES_IV_SIZE_BYTES);
+ return -ENOMEM;
}

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"crypto block: src is %lx dst is %lx\n",
(unsigned long)req->src, (unsigned long)req->dst);

/* Make sure all pages are even block */
- int_error = sep_oddball_pages(sctx->sep_used, req->src,
- req->nbytes, bctx->walk.blocksize, &new_sg, 1);
+ int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
+ req->nbytes, ta_ctx->walk.blocksize, &new_sg, 1);

if (int_error < 0) {
- dev_warn(&sctx->sep_used->pdev->dev, "oddball page eerror\n");
- sep_crypto_release(sctx, -ENOMEM);
- return;
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page eerror\n");
+ return -ENOMEM;
} else if (int_error == 1) {
- sctx->src_sg = new_sg;
- sctx->src_sg_hold = new_sg;
+ ta_ctx->src_sg = new_sg;
+ ta_ctx->src_sg_hold = new_sg;
} else {
- sctx->src_sg = req->src;
- sctx->src_sg_hold = NULL;
+ ta_ctx->src_sg = req->src;
+ ta_ctx->src_sg_hold = NULL;
}

- int_error = sep_oddball_pages(sctx->sep_used, req->dst,
- req->nbytes, bctx->walk.blocksize, &new_sg, 0);
+ int_error = sep_oddball_pages(ta_ctx->sep_used, req->dst,
+ req->nbytes, ta_ctx->walk.blocksize, &new_sg, 0);

if (int_error < 0) {
- dev_warn(&sctx->sep_used->pdev->dev, "walk phys error %x\n",
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n",
int_error);
- sep_crypto_release(sctx, -ENOMEM);
- return;
+ return -ENOMEM;
} else if (int_error == 1) {
- sctx->dst_sg = new_sg;
- sctx->dst_sg_hold = new_sg;
+ ta_ctx->dst_sg = new_sg;
+ ta_ctx->dst_sg_hold = new_sg;
} else {
- sctx->dst_sg = req->dst;
- sctx->dst_sg_hold = NULL;
+ ta_ctx->dst_sg = req->dst;
+ ta_ctx->dst_sg_hold = NULL;
}

- /* Do we need to perform init; ie; send key to sep? */
- if (sctx->key_sent == 0) {
+ /* set nbytes for queue status */
+ ta_ctx->nbytes = req->nbytes;

- dev_dbg(&sctx->sep_used->pdev->dev, "sending key\n");
+ /* Key already done; this is for data */
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "sending data\n");

- /* put together message to SEP */
- /* Start with op code */
- sep_make_header(sctx, &msg_offset, bctx->init_opcode);
+ sep_dump_sg(ta_ctx->sep_used,
+ "block sg in", ta_ctx->src_sg);

- /* now deal with IV */
- if (bctx->init_opcode == SEP_DES_INIT_OPCODE) {
- if (bctx->des_opmode == SEP_DES_CBC) {
- sep_write_msg(sctx, bctx->iv,
- SEP_DES_IV_SIZE_BYTES, sizeof(u32) * 4,
- &msg_offset, 1);
- sep_dump(sctx->sep_used, "initial IV",
- bctx->walk.iv, SEP_DES_IV_SIZE_BYTES);
- } else {
- /* Skip if ECB */
- msg_offset += 4 * sizeof(u32);
- }
- } else {
- max_length = ((SEP_AES_IV_SIZE_BYTES + 3) /
- sizeof(u32)) * sizeof(u32);
- if (bctx->aes_opmode == SEP_AES_CBC) {
- sep_write_msg(sctx, bctx->iv,
- SEP_AES_IV_SIZE_BYTES, max_length,
- &msg_offset, 1);
- sep_dump(sctx->sep_used, "initial IV",
- bctx->walk.iv, SEP_AES_IV_SIZE_BYTES);
- } else {
- /* Skip if ECB */
- msg_offset += max_length;
- }
- }
+ /* check for valid data and proper spacing */
+ src_ptr = sg_virt(ta_ctx->src_sg);
+ dst_ptr = sg_virt(ta_ctx->dst_sg);

- /* load the key */
- if (bctx->init_opcode == SEP_DES_INIT_OPCODE) {
- sep_write_msg(sctx, (void *)&sctx->key.des.key1,
- sizeof(u32) * 8, sizeof(u32) * 8,
- &msg_offset, 1);
+ if (!src_ptr || !dst_ptr ||
+ (ta_ctx->current_cypher_req->nbytes %
+ crypto_ablkcipher_blocksize(tfm))) {
+
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "cipher block size odd\n");
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "cipher block size is %x\n",
+ crypto_ablkcipher_blocksize(tfm));
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "cipher data size is %x\n",
+ ta_ctx->current_cypher_req->nbytes);
+ return -EINVAL;
+ }

- msg[0] = (u32)sctx->des_nbr_keys;
- msg[1] = (u32)bctx->des_encmode;
- msg[2] = (u32)bctx->des_opmode;
+ if (partial_overlap(src_ptr, dst_ptr,
+ ta_ctx->current_cypher_req->nbytes)) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "block partial overlap\n");
+ return -EINVAL;
+ }

- sep_write_msg(sctx, (void *)msg,
- sizeof(u32) * 3, sizeof(u32) * 3,
- &msg_offset, 0);
- } else {
- sep_write_msg(sctx, (void *)&sctx->key.aes,
- sctx->keylen,
- SEP_AES_MAX_KEY_SIZE_BYTES,
- &msg_offset, 1);
+ /* Put together the message */
+ sep_make_header(ta_ctx, &msg_offset, ta_ctx->block_opcode);
+
+ /* If des, and size is 1 block, put directly in msg */
+ if ((ta_ctx->block_opcode == SEP_DES_BLOCK_OPCODE) &&
+ (req->nbytes == crypto_ablkcipher_blocksize(tfm))) {
+
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "writing out one block des\n");
+
+ copy_result = sg_copy_to_buffer(
+ ta_ctx->src_sg, sep_sg_nents(ta_ctx->src_sg),
+ small_buf, crypto_ablkcipher_blocksize(tfm));

- msg[0] = (u32)sctx->aes_key_size;
- msg[1] = (u32)bctx->aes_encmode;
- msg[2] = (u32)bctx->aes_opmode;
- msg[3] = (u32)0; /* Secret key is not used */
- sep_write_msg(sctx, (void *)msg,
- sizeof(u32) * 4, sizeof(u32) * 4,
- &msg_offset, 0);
+ if (copy_result != crypto_ablkcipher_blocksize(tfm)) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "des block copy faild\n");
+ return -ENOMEM;
}

+ /* Put data into message */
+ sep_write_msg(ta_ctx, small_buf,
+ crypto_ablkcipher_blocksize(tfm),
+ crypto_ablkcipher_blocksize(tfm) * 2,
+ &msg_offset, 1);
+
+ /* Put size into message */
+ sep_write_msg(ta_ctx, &req->nbytes,
+ sizeof(u32), sizeof(u32), &msg_offset, 0);
} else {
+ /* Otherwise, fill out dma tables */
+ ta_ctx->dcb_input_data.app_in_address = src_ptr;
+ ta_ctx->dcb_input_data.data_in_size = req->nbytes;
+ ta_ctx->dcb_input_data.app_out_address = dst_ptr;
+ ta_ctx->dcb_input_data.block_size =
+ crypto_ablkcipher_blocksize(tfm);
+ ta_ctx->dcb_input_data.tail_block_size = 0;
+ ta_ctx->dcb_input_data.is_applet = 0;
+ ta_ctx->dcb_input_data.src_sg = ta_ctx->src_sg;
+ ta_ctx->dcb_input_data.dst_sg = ta_ctx->dst_sg;
+
+ result = sep_create_dcb_dmatables_context_kernel(
+ ta_ctx->sep_used,
+ &ta_ctx->dcb_region,
+ &ta_ctx->dmatables_region,
+ &ta_ctx->dma_ctx,
+ &ta_ctx->dcb_input_data,
+ 1);
+ if (result) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "crypto dma table create failed\n");
+ return -EINVAL;
+ }
+
+ /* Portion of msg is nulled (no data) */
+ msg[0] = (u32)0;
+ msg[1] = (u32)0;
+ msg[2] = (u32)0;
+ msg[3] = (u32)0;
+ msg[4] = (u32)0;
+ sep_write_msg(ta_ctx, (void *)msg, sizeof(u32) * 5,
+ sizeof(u32) * 5, &msg_offset, 0);
+ }

- /* set nbytes for queue status */
- sctx->nbytes = req->nbytes;
+ /**
+ * Before we write the message, we need to overwrite the
+ * vendor's IV with the one from our own ablkcipher walk
+ * iv because this is needed for dm-crypt
+ */
+ sep_dump_ivs(req, "sending data block to sep\n");
+ if ((ta_ctx->current_request == DES_CBC) &&
+ (ta_ctx->des_opmode == SEP_DES_CBC)) {
+
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "overwrite vendor iv on DES\n");
+ des_internal = (struct sep_des_internal_context *)
+ sctx->des_private_ctx.ctx_buf;
+ memcpy((void *)des_internal->iv_context,
+ ta_ctx->walk.iv, crypto_ablkcipher_ivsize(tfm));
+ } else if ((ta_ctx->current_request == AES_CBC) &&
+ (ta_ctx->aes_opmode == SEP_AES_CBC)) {
+
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "overwrite vendor iv on AES\n");
+ aes_internal = (struct sep_aes_internal_context *)
+ sctx->aes_private_ctx.cbuff;
+ memcpy((void *)aes_internal->aes_ctx_iv,
+ ta_ctx->walk.iv, crypto_ablkcipher_ivsize(tfm));
+ }
+
+ /* Write context into message */
+ if (ta_ctx->block_opcode == SEP_DES_BLOCK_OPCODE) {
+ 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);
+ }

- /* Key already done; this is for data */
- dev_dbg(&sctx->sep_used->pdev->dev, "sending data\n");
+ /* conclude message */
+ sep_end_msg(ta_ctx, msg_offset);

- sep_dump_sg(sctx->sep_used,
- "block sg in", sctx->src_sg);
+ /* Parent (caller) is now ready to tell the sep to do ahead */
+ return 0;
+}

- /* check for valid data and proper spacing */
- src_ptr = sg_virt(sctx->src_sg);
- dst_ptr = sg_virt(sctx->dst_sg);

- if (!src_ptr || !dst_ptr ||
- (sctx->current_cypher_req->nbytes %
- crypto_ablkcipher_blocksize(tfm))) {
+/**
+ * This function sets things up for a crypto key submit process
+ * This does all preparation, but does not try to grab the
+ * sep
+ * @req: pointer to struct ablkcipher_request
+ * returns: 0 if all went well, non zero if error
+ */
+static int sep_crypto_send_key(struct ablkcipher_request *req)
+{

- dev_warn(&sctx->sep_used->pdev->dev,
- "cipher block size odd\n");
- dev_warn(&sctx->sep_used->pdev->dev,
- "cipher block size is %x\n",
- crypto_ablkcipher_blocksize(tfm));
- dev_warn(&sctx->sep_used->pdev->dev,
- "cipher data size is %x\n",
- sctx->current_cypher_req->nbytes);
- sep_crypto_release(sctx, -EINVAL);
- return;
- }
+ int int_error;
+ u32 msg_offset;
+ static u32 msg[10];

- if (partial_overlap(src_ptr, dst_ptr,
- sctx->current_cypher_req->nbytes)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "block partial overlap\n");
- sep_crypto_release(sctx, -EINVAL);
- return;
- }
+ u32 max_length;
+ struct this_task_ctx *ta_ctx;
+ struct crypto_ablkcipher *tfm;
+ struct sep_system_ctx *sctx;

- /* Put together the message */
- sep_make_header(sctx, &msg_offset, bctx->block_opcode);
+ ta_ctx = ablkcipher_request_ctx(req);
+ tfm = crypto_ablkcipher_reqtfm(req);
+ sctx = crypto_ablkcipher_ctx(tfm);

- /* If des, and size is 1 block, put directly in msg */
- if ((bctx->block_opcode == SEP_DES_BLOCK_OPCODE) &&
- (req->nbytes == crypto_ablkcipher_blocksize(tfm))) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "sending key\n");

- dev_dbg(&sctx->sep_used->pdev->dev,
- "writing out one block des\n");
+ /* start the walk on scatterlists */
+ ablkcipher_walk_init(&ta_ctx->walk, req->src, req->dst, req->nbytes);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "sep crypto block data size of %x\n", req->nbytes);

- copy_result = sg_copy_to_buffer(
- sctx->src_sg, sep_sg_nents(sctx->src_sg),
- small_buf, crypto_ablkcipher_blocksize(tfm));
+ int_error = ablkcipher_walk_phys(req, &ta_ctx->walk);
+ if (int_error) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n",
+ int_error);
+ return -ENOMEM;
+ }

- if (copy_result != crypto_ablkcipher_blocksize(tfm)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "des block copy faild\n");
- sep_crypto_release(sctx, -ENOMEM);
- return;
- }
+ /* check iv */
+ if ((ta_ctx->current_request == DES_CBC) &&
+ (ta_ctx->des_opmode == SEP_DES_CBC)) {
+ if (!ta_ctx->walk.iv) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "no iv found\n");
+ return -EINVAL;
+ }

- /* Put data into message */
- sep_write_msg(sctx, small_buf,
- crypto_ablkcipher_blocksize(tfm),
- crypto_ablkcipher_blocksize(tfm) * 2,
- &msg_offset, 1);
+ 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);
+ }

- /* Put size into message */
- sep_write_msg(sctx, &req->nbytes,
- sizeof(u32), sizeof(u32), &msg_offset, 0);
+ if ((ta_ctx->current_request == AES_CBC) &&
+ (ta_ctx->aes_opmode == SEP_AES_CBC)) {
+ if (!ta_ctx->walk.iv) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "no iv found\n");
+ return -EINVAL;
+ }
+
+ 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 */
+ /* Start with op code */
+ sep_make_header(ta_ctx, &msg_offset, ta_ctx->init_opcode);
+
+ /* now deal with IV */
+ if (ta_ctx->init_opcode == SEP_DES_INIT_OPCODE) {
+ if (ta_ctx->des_opmode == SEP_DES_CBC) {
+ 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);
+ }
+ } else {
+ max_length = ((SEP_AES_IV_SIZE_BYTES + 3) /
+ sizeof(u32)) * sizeof(u32);
+ if (ta_ctx->aes_opmode == SEP_AES_CBC) {
+ 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 {
- /* Otherwise, fill out dma tables */
- sctx->dcb_input_data.app_in_address = src_ptr;
- sctx->dcb_input_data.data_in_size = req->nbytes;
- sctx->dcb_input_data.app_out_address = dst_ptr;
- sctx->dcb_input_data.block_size =
- crypto_ablkcipher_blocksize(tfm);
- sctx->dcb_input_data.tail_block_size = 0;
- sctx->dcb_input_data.is_applet = 0;
- sctx->dcb_input_data.src_sg = sctx->src_sg;
- sctx->dcb_input_data.dst_sg = sctx->dst_sg;
-
- result = sep_create_dcb_dmatables_context_kernel(
- sctx->sep_used,
- &sctx->dcb_region,
- &sctx->dmatables_region,
- &sctx->dma_ctx,
- &sctx->dcb_input_data,
- 1);
- if (result) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "crypto dma table create failed\n");
- sep_crypto_release(sctx, -EINVAL);
- return;
+ /* Skip if ECB */
+ msg_offset += max_length;
}
+ }
+
+ /* load the key */
+ if (ta_ctx->init_opcode == SEP_DES_INIT_OPCODE) {
+ sep_write_msg(ta_ctx, (void *)&sctx->key.des.key1,
+ sizeof(u32) * 8, sizeof(u32) * 8,
+ &msg_offset, 1);
+
+ msg[0] = (u32)sctx->des_nbr_keys;
+ msg[1] = (u32)ta_ctx->des_encmode;
+ msg[2] = (u32)ta_ctx->des_opmode;

- /* Portion of msg is nulled (no data) */
- msg[0] = (u32)0;
- msg[1] = (u32)0;
- msg[2] = (u32)0;
- msg[3] = (u32)0;
- msg[4] = (u32)0;
- sep_write_msg(sctx, (void *)msg,
- sizeof(u32) * 5,
- sizeof(u32) * 5,
- &msg_offset, 0);
+ sep_write_msg(ta_ctx, (void *)msg,
+ sizeof(u32) * 3, sizeof(u32) * 3,
+ &msg_offset, 0);
+ } else {
+ sep_write_msg(ta_ctx, (void *)&sctx->key.aes,
+ sctx->keylen,
+ SEP_AES_MAX_KEY_SIZE_BYTES,
+ &msg_offset, 1);
+
+ msg[0] = (u32)sctx->aes_key_size;
+ msg[1] = (u32)ta_ctx->aes_encmode;
+ msg[2] = (u32)ta_ctx->aes_opmode;
+ msg[3] = (u32)0; /* Secret key is not used */
+ sep_write_msg(ta_ctx, (void *)msg,
+ sizeof(u32) * 4, sizeof(u32) * 4,
+ &msg_offset, 0);
+ }
+
+ /* conclude message */
+ sep_end_msg(ta_ctx, msg_offset);
+
+ /* Parent (caller) is now ready to tell the sep to do ahead */
+ return 0;
+}
+
+
+/* This needs to be run as a work queue as it can be put asleep */
+static void sep_crypto_block(void *data)
+{
+ unsigned long end_time;
+
+ int result;
+
+ struct ablkcipher_request *req;
+ struct this_task_ctx *ta_ctx;
+ struct crypto_ablkcipher *tfm;
+ struct sep_system_ctx *sctx;
+ int are_we_done_yet;
+
+ req = (struct ablkcipher_request *)data;
+ ta_ctx = ablkcipher_request_ctx(req);
+ tfm = crypto_ablkcipher_reqtfm(req);
+ sctx = crypto_ablkcipher_ctx(tfm);
+
+ ta_ctx->are_we_done_yet = &are_we_done_yet;
+
+ pr_debug("sep_crypto_block\n");
+ pr_debug("tfm is %p sctx is %p ta_ctx is %p\n",
+ tfm, sctx, ta_ctx);
+ pr_debug("key_sent is %d\n", sctx->key_sent);
+
+ /* do we need to send the key */
+ if (sctx->key_sent == 0) {
+ are_we_done_yet = 0;
+ result = sep_crypto_send_key(req); /* prep to send key */
+ if (result != 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "could not prep key %x\n", result);
+ sep_crypto_release(sctx, ta_ctx, result);
+ return;
}

- /* Write context into message */
- if (bctx->block_opcode == SEP_DES_BLOCK_OPCODE) {
- sep_write_context(sctx, &msg_offset,
- &bctx->des_private_ctx,
- sizeof(struct sep_des_private_context));
- sep_dump(sctx->sep_used, "ctx to block des",
- &bctx->des_private_ctx, 40);
- } else {
- sep_write_context(sctx, &msg_offset,
- &bctx->aes_private_ctx,
- sizeof(struct sep_aes_private_context));
- sep_dump(sctx->sep_used, "ctx to block aes",
- &bctx->aes_private_ctx, 20);
+ result = sep_crypto_take_sep(ta_ctx);
+ if (result) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "sep_crypto_take_sep for key send failed\n");
+ sep_crypto_release(sctx, ta_ctx, result);
+ return;
+ }
+
+ /* now we sit and wait up to a fixed time for completion */
+ end_time = jiffies + (WAIT_TIME * HZ);
+ while ((time_before(jiffies, end_time)) &&
+ (are_we_done_yet == 0))
+ schedule();
+
+ /* Done waiting; still not done yet? */
+ if (are_we_done_yet == 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "Send key job never got done\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return;
}
+
+ /* Set the key sent variable so this can be skipped later */
+ sctx->key_sent = 1;
}

- /* conclude message and then tell sep to do its thing */
- sctx->done_with_transaction = 0;
+ /* Key sent (or maybe not if we did not have to), now send block */
+ are_we_done_yet = 0;

- sep_end_msg(sctx, msg_offset);
- result = sep_crypto_take_sep(sctx);
- if (result) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_crypto_take_sep failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ result = sep_crypto_block_data(req);
+
+ if (result != 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "could prep not send block %x\n", result);
+ sep_crypto_release(sctx, ta_ctx, result);
return;
}

- /**
- * Sep is now working. Lets wait up to 5 seconds
- * for completion. If it does not complete, we will do
- * a crypto release with -EINVAL to release the
- * kernel crypto infrastructure and let the system
- * continue to boot up
- * We have to wait this long because some crypto
- * operations can take a while
- */
-
- dev_dbg(&sctx->sep_used->pdev->dev,
- "waiting for done with transaction\n");
+ result = sep_crypto_take_sep(ta_ctx);
+ if (result) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "sep_crypto_take_sep for block send failed\n");
+ sep_crypto_release(sctx, ta_ctx, result);
+ return;
+ }

- sctx->end_time = jiffies + (SEP_TRANSACTION_WAIT_TIME * HZ);
- while ((time_before(jiffies, sctx->end_time)) &&
- (!sctx->done_with_transaction))
+ /* now we sit and wait up to a fixed time for completion */
+ end_time = jiffies + (WAIT_TIME * HZ);
+ while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0))
schedule();

- dev_dbg(&sctx->sep_used->pdev->dev,
- "done waiting for done with transaction\n");
-
- /* are we done? */
- if (!sctx->done_with_transaction) {
- /* Nope, lets release and tell crypto no */
- dev_warn(&sctx->sep_used->pdev->dev,
- "[PID%d] sep_crypto_block never finished\n",
- current->pid);
- sep_crypto_release(sctx, -EINVAL);
+ /* Done waiting; still not done yet? */
+ if (are_we_done_yet == 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "Send block job never got done\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return;
}
+
+ /* That's it; entire thing done, get out of queue */
+
+ pr_debug("crypto_block leaving\n");
+ pr_debug("tfm is %p sctx is %p ta_ctx is %p\n", tfm, sctx, ta_ctx);
}

/**
@@ -1405,7 +1614,6 @@ static void sep_crypto_block(void *data)
static u32 crypto_post_op(struct sep_device *sep)
{
/* HERE */
- int int_error;
u32 u32_error;
u32 msg_offset;

@@ -1413,169 +1621,185 @@ static u32 crypto_post_op(struct sep_device *sep)
static char small_buf[100];

struct ablkcipher_request *req;
- struct sep_block_ctx *bctx;
+ struct this_task_ctx *ta_ctx;
struct sep_system_ctx *sctx;
struct crypto_ablkcipher *tfm;

+ struct sep_des_internal_context *des_internal;
+ struct sep_aes_internal_context *aes_internal;
+
if (!sep->current_cypher_req)
return -EINVAL;

/* hold req since we need to submit work after clearing sep */
req = sep->current_cypher_req;

- bctx = ablkcipher_request_ctx(sep->current_cypher_req);
+ ta_ctx = ablkcipher_request_ctx(sep->current_cypher_req);
tfm = crypto_ablkcipher_reqtfm(sep->current_cypher_req);
sctx = crypto_ablkcipher_ctx(tfm);

- dev_dbg(&sctx->sep_used->pdev->dev, "crypto post_op\n");
- dev_dbg(&sctx->sep_used->pdev->dev, "crypto post_op message dump\n");
- crypto_sep_dump_message(sctx);
+ pr_debug("crypto_post op\n");
+ pr_debug("key_sent is %d tfm is %p sctx is %p ta_ctx is %p\n",
+ sctx->key_sent, tfm, sctx, ta_ctx);

- sctx->done_with_transaction = 1;
+ 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(sctx->msg, sep->shared_addr,
+ memcpy(ta_ctx->msg, sep->shared_addr,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

/* Is this the result of performing init (key to SEP */
if (sctx->key_sent == 0) {

/* Did SEP do it okay */
- u32_error = sep_verify_op(sctx, bctx->init_opcode,
+ u32_error = sep_verify_op(ta_ctx, ta_ctx->init_opcode,
&msg_offset);
if (u32_error) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"aes init error %x\n", u32_error);
- sep_crypto_release(sctx, u32_error);
+ sep_crypto_release(sctx, ta_ctx, u32_error);
return u32_error;
}

/* Read Context */
- if (bctx->init_opcode == SEP_DES_INIT_OPCODE) {
- sep_read_context(sctx, &msg_offset,
- &bctx->des_private_ctx,
+ if (ta_ctx->init_opcode == SEP_DES_INIT_OPCODE) {
+ sep_read_context(ta_ctx, &msg_offset,
+ &sctx->des_private_ctx,
sizeof(struct sep_des_private_context));

- sep_dump(sctx->sep_used, "ctx init des",
- &bctx->des_private_ctx, 40);
+ sep_dump(ta_ctx->sep_used, "ctx init des",
+ &sctx->des_private_ctx, 40);
} else {
- sep_read_context(sctx, &msg_offset,
- &bctx->aes_private_ctx,
- sizeof(struct sep_des_private_context));
-
- sep_dump(sctx->sep_used, "ctx init aes",
- &bctx->aes_private_ctx, 20);
- }
-
- /* We are done with init. Now send out the data */
- /* first release the sep */
- sctx->key_sent = 1;
- sep_crypto_release(sctx, -EINPROGRESS);
+ sep_read_context(ta_ctx, &msg_offset,
+ &sctx->aes_private_ctx,
+ sizeof(struct sep_aes_private_context));

- spin_lock_irq(&queue_lock);
- int_error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((int_error != 0) && (int_error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "spe cypher post op cant queue\n");
- sep_crypto_release(sctx, int_error);
- return int_error;
+ sep_dump(ta_ctx->sep_used, "ctx init aes",
+ &sctx->aes_private_ctx, 20);
}

- /* schedule the data send */
- int_error = sep_submit_work(sep->workqueue, sep_dequeuer,
- (void *)&sep_queue);
+ sep_dump_ivs(req, "after sending key to sep\n");

- if (int_error) {
- dev_warn(&sep->pdev->dev,
- "cant submit work sep_crypto_block\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
+ /* key sent went okay; release sep, and set are_we_done_yet */
+ sctx->key_sent = 1;
+ sep_crypto_release(sctx, ta_ctx, -EINPROGRESS);

} else {

/**
* This is the result of a block request
*/
- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"crypto_post_op block response\n");

- u32_error = sep_verify_op(sctx, bctx->block_opcode,
+ u32_error = sep_verify_op(ta_ctx, ta_ctx->block_opcode,
&msg_offset);

if (u32_error) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sep block error %x\n", u32_error);
- sep_crypto_release(sctx, u32_error);
+ sep_crypto_release(sctx, ta_ctx, u32_error);
return -EINVAL;
}

- if (bctx->block_opcode == SEP_DES_BLOCK_OPCODE) {
+ if (ta_ctx->block_opcode == SEP_DES_BLOCK_OPCODE) {

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"post op for DES\n");

/* special case for 1 block des */
if (sep->current_cypher_req->nbytes ==
crypto_ablkcipher_blocksize(tfm)) {

- sep_read_msg(sctx, small_buf,
+ sep_read_msg(ta_ctx, small_buf,
crypto_ablkcipher_blocksize(tfm),
crypto_ablkcipher_blocksize(tfm) * 2,
&msg_offset, 1);

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"reading in block des\n");

copy_result = sg_copy_from_buffer(
- sctx->dst_sg,
- sep_sg_nents(sctx->dst_sg),
+ ta_ctx->dst_sg,
+ sep_sg_nents(ta_ctx->dst_sg),
small_buf,
crypto_ablkcipher_blocksize(tfm));

if (copy_result !=
crypto_ablkcipher_blocksize(tfm)) {

- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"des block copy faild\n");
- sep_crypto_release(sctx, -ENOMEM);
+ sep_crypto_release(sctx, ta_ctx,
+ -ENOMEM);
return -ENOMEM;
}
}

/* Read Context */
- sep_read_context(sctx, &msg_offset,
- &bctx->des_private_ctx,
+ sep_read_context(ta_ctx, &msg_offset,
+ &sctx->des_private_ctx,
sizeof(struct sep_des_private_context));
} else {

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"post op for AES\n");

/* Skip the MAC Output */
msg_offset += (sizeof(u32) * 4);

/* Read Context */
- sep_read_context(sctx, &msg_offset,
- &bctx->aes_private_ctx,
+ sep_read_context(ta_ctx, &msg_offset,
+ &sctx->aes_private_ctx,
sizeof(struct sep_aes_private_context));
}

- sep_dump_sg(sctx->sep_used,
- "block sg out", sctx->dst_sg);
+ 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 (sctx->dst_sg_hold)
- sep_copy_sg(sctx->sep_used,
- sctx->dst_sg,
- sctx->current_cypher_req->dst,
- sctx->current_cypher_req->nbytes);
+ if (ta_ctx->dst_sg_hold)
+ sep_copy_sg(ta_ctx->sep_used,
+ ta_ctx->dst_sg,
+ ta_ctx->current_cypher_req->dst,
+ ta_ctx->current_cypher_req->nbytes);
+
+ /**
+ * Copy the iv's back to the walk.iv
+ * This is required for dm_crypt
+ */
+ sep_dump_ivs(req, "got data block from sep\n");
+ if ((ta_ctx->current_request == DES_CBC) &&
+ (ta_ctx->des_opmode == SEP_DES_CBC)) {
+
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "returning result iv to walk on DES\n");
+ des_internal = (struct sep_des_internal_context *)
+ sctx->des_private_ctx.ctx_buf;
+ memcpy(ta_ctx->walk.iv,
+ (void *)des_internal->iv_context,
+ crypto_ablkcipher_ivsize(tfm));
+ } else if ((ta_ctx->current_request == AES_CBC) &&
+ (ta_ctx->aes_opmode == SEP_AES_CBC)) {
+
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "returning result iv to walk on AES\n");
+ aes_internal = (struct sep_aes_internal_context *)
+ sctx->aes_private_ctx.cbuff;
+ memcpy(ta_ctx->walk.iv,
+ (void *)aes_internal->aes_ctx_iv,
+ crypto_ablkcipher_ivsize(tfm));
+ }

/* finished, release everything */
- sep_crypto_release(sctx, 0);
+ sep_crypto_release(sctx, ta_ctx, 0);
}
+ pr_debug("crypto_post_op done\n");
+ pr_debug("key_sent is %d tfm is %p sctx is %p ta_ctx is %p\n",
+ sctx->key_sent, tfm, sctx, ta_ctx);
+
return 0;
}

@@ -1584,35 +1808,33 @@ static u32 hash_init_post_op(struct sep_device *sep)
u32 u32_error;
u32 msg_offset;
struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(sep->current_hash_req);
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req);
struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"hash init post op\n");

- sctx->done_with_transaction = 1;
-
/* first bring msg from shared area to local area */
- memcpy(sctx->msg, sep->shared_addr,
+ memcpy(ta_ctx->msg, sep->shared_addr,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

- u32_error = sep_verify_op(sctx, SEP_HASH_INIT_OPCODE,
+ u32_error = sep_verify_op(ta_ctx, SEP_HASH_INIT_OPCODE,
&msg_offset);

if (u32_error) {
- dev_warn(&sctx->sep_used->pdev->dev, "hash init error %x\n",
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "hash init error %x\n",
u32_error);
- sep_crypto_release(sctx, u32_error);
+ sep_crypto_release(sctx, ta_ctx, u32_error);
return u32_error;
}

/* Read Context */
- sep_read_context(sctx, &msg_offset,
- &ctx->hash_private_ctx,
+ sep_read_context(ta_ctx, &msg_offset,
+ &sctx->hash_private_ctx,
sizeof(struct sep_hash_private_context));

/* Signal to crypto infrastructure and clear out */
- dev_dbg(&sctx->sep_used->pdev->dev, "hash init post op done\n");
- sep_crypto_release(sctx, 0);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "hash init post op done\n");
+ sep_crypto_release(sctx, ta_ctx, 0);
return 0;
}

@@ -1621,33 +1843,69 @@ static u32 hash_update_post_op(struct sep_device *sep)
u32 u32_error;
u32 msg_offset;
struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(sep->current_hash_req);
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req);
struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"hash update post op\n");

- sctx->done_with_transaction = 1;
-
/* first bring msg from shared area to local area */
- memcpy(sctx->msg, sep->shared_addr,
+ memcpy(ta_ctx->msg, sep->shared_addr,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

- u32_error = sep_verify_op(sctx, SEP_HASH_UPDATE_OPCODE,
+ u32_error = sep_verify_op(ta_ctx, SEP_HASH_UPDATE_OPCODE,
&msg_offset);

if (u32_error) {
- dev_warn(&sctx->sep_used->pdev->dev, "hash init error %x\n",
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "hash init error %x\n",
u32_error);
- sep_crypto_release(sctx, u32_error);
+ sep_crypto_release(sctx, ta_ctx, u32_error);
return u32_error;
}

/* Read Context */
- sep_read_context(sctx, &msg_offset,
- &ctx->hash_private_ctx,
+ sep_read_context(ta_ctx, &msg_offset,
+ &sctx->hash_private_ctx,
sizeof(struct sep_hash_private_context));

- sep_crypto_release(sctx, 0);
+ /**
+ * Following is only for finup; if we just completd the
+ * data portion of finup, we now need to kick off the
+ * finish portion of finup.
+ */
+
+ if (ta_ctx->sep_used->current_hash_stage == HASH_FINUP_DATA) {
+
+ /* first reset stage to HASH_FINUP_FINISH */
+ ta_ctx->sep_used->current_hash_stage = HASH_FINUP_FINISH;
+
+ /* now enqueue the finish operation */
+ spin_lock_irq(&queue_lock);
+ u32_error = crypto_enqueue_request(&sep_queue,
+ &ta_ctx->sep_used->current_hash_req->base);
+ spin_unlock_irq(&queue_lock);
+
+ if ((u32_error != 0) && (u32_error != -EINPROGRESS)) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "spe cypher post op cant queue\n");
+ sep_crypto_release(sctx, ta_ctx, u32_error);
+ return u32_error;
+ }
+
+ /* schedule the data send */
+ u32_error = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+
+ if (u32_error) {
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
+ "cant submit work sep_crypto_block\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return -EINVAL;
+ }
+ }
+
+ /* Signal to crypto infrastructure and clear out */
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "hash update post op done\n");
+ sep_crypto_release(sctx, ta_ctx, 0);
return 0;
}

@@ -1658,45 +1916,44 @@ static u32 hash_final_post_op(struct sep_device *sep)
u32 msg_offset;
struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req);
struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev,
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"hash final post op\n");

- sctx->done_with_transaction = 1;
-
/* first bring msg from shared area to local area */
- memcpy(sctx->msg, sep->shared_addr,
+ memcpy(ta_ctx->msg, sep->shared_addr,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

- u32_error = sep_verify_op(sctx, SEP_HASH_FINISH_OPCODE,
+ u32_error = sep_verify_op(ta_ctx, SEP_HASH_FINISH_OPCODE,
&msg_offset);

if (u32_error) {
- dev_warn(&sctx->sep_used->pdev->dev, "hash finish error %x\n",
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "hash finish error %x\n",
u32_error);
- sep_crypto_release(sctx, u32_error);
+ sep_crypto_release(sctx, ta_ctx, u32_error);
return u32_error;
}

/* Grab the result */
- if (sctx->current_hash_req->result == NULL) {
+ if (ta_ctx->current_hash_req->result == NULL) {
/* Oops, null buffer; error out here */
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"hash finish null buffer\n");
- sep_crypto_release(sctx, (u32)-ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, (u32)-ENOMEM);
return -ENOMEM;
}

max_length = (((SEP_HASH_RESULT_SIZE_WORDS * sizeof(u32)) + 3) /
sizeof(u32)) * sizeof(u32);

- sep_read_msg(sctx,
- sctx->current_hash_req->result,
+ sep_read_msg(ta_ctx,
+ ta_ctx->current_hash_req->result,
crypto_ahash_digestsize(tfm), max_length,
&msg_offset, 0);

/* Signal to crypto infrastructure and clear out */
- dev_dbg(&sctx->sep_used->pdev->dev, "hash finish post op done\n");
- sep_crypto_release(sctx, 0);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "hash finish post op done\n");
+ sep_crypto_release(sctx, ta_ctx, 0);
return 0;
}

@@ -1707,48 +1964,47 @@ static u32 hash_digest_post_op(struct sep_device *sep)
u32 msg_offset;
struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req);
struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev,
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"hash digest post op\n");

- sctx->done_with_transaction = 1;
-
/* first bring msg from shared area to local area */
- memcpy(sctx->msg, sep->shared_addr,
+ memcpy(ta_ctx->msg, sep->shared_addr,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);

- u32_error = sep_verify_op(sctx, SEP_HASH_SINGLE_OPCODE,
+ u32_error = sep_verify_op(ta_ctx, SEP_HASH_SINGLE_OPCODE,
&msg_offset);

if (u32_error) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"hash digest finish error %x\n", u32_error);

- sep_crypto_release(sctx, u32_error);
+ sep_crypto_release(sctx, ta_ctx, u32_error);
return u32_error;
}

/* Grab the result */
- if (sctx->current_hash_req->result == NULL) {
+ if (ta_ctx->current_hash_req->result == NULL) {
/* Oops, null buffer; error out here */
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"hash digest finish null buffer\n");
- sep_crypto_release(sctx, (u32)-ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, (u32)-ENOMEM);
return -ENOMEM;
}

max_length = (((SEP_HASH_RESULT_SIZE_WORDS * sizeof(u32)) + 3) /
sizeof(u32)) * sizeof(u32);

- sep_read_msg(sctx,
- sctx->current_hash_req->result,
+ sep_read_msg(ta_ctx,
+ ta_ctx->current_hash_req->result,
crypto_ahash_digestsize(tfm), max_length,
&msg_offset, 0);

/* Signal to crypto infrastructure and clear out */
- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"hash digest finish post op done\n");

- sep_crypto_release(sctx, 0);
+ sep_crypto_release(sctx, ta_ctx, 0);
return 0;
}

@@ -1759,7 +2015,6 @@ static u32 hash_digest_post_op(struct sep_device *sep)
*/
static void sep_finish(unsigned long data)
{
- unsigned long flags;
struct sep_device *sep_dev;
int res;

@@ -1776,18 +2031,15 @@ static void sep_finish(unsigned long data)
return;
}

- spin_lock_irqsave(&sep_dev->busy_lock, flags);
if (sep_dev->in_kernel == (u32)0) {
- spin_unlock_irqrestore(&sep_dev->busy_lock, flags);
dev_warn(&sep_dev->pdev->dev,
"sep_finish; not in kernel operation\n");
return;
}
- spin_unlock_irqrestore(&sep_dev->busy_lock, flags);

/* Did we really do a sep command prior to this? */
if (0 == test_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET,
- &sep_dev->sctx->call_status.status)) {
+ &sep_dev->ta_ctx->call_status.status)) {

dev_warn(&sep_dev->pdev->dev, "[PID%d] sendmsg not called\n",
current->pid);
@@ -1856,8 +2108,10 @@ static void sep_finish(unsigned long data)
res = hash_init_post_op(sep_dev);
break;
case HASH_UPDATE:
+ case HASH_FINUP_DATA:
res = hash_update_post_op(sep_dev);
break;
+ case HASH_FINUP_FINISH:
case HASH_FINISH:
res = hash_final_post_op(sep_dev);
break;
@@ -1865,43 +2119,31 @@ static void sep_finish(unsigned long data)
res = hash_digest_post_op(sep_dev);
break;
default:
- dev_warn(&sep_dev->pdev->dev,
- "invalid stage for hash finish\n");
+ pr_debug("sep - invalid stage for hash finish\n");
}
break;
default:
- dev_warn(&sep_dev->pdev->dev,
- "invalid request for finish\n");
+ pr_debug("sep - invalid request for finish\n");
}

- if (res) {
- dev_warn(&sep_dev->pdev->dev,
- "finish returned error %x\n", res);
- }
+ if (res)
+ pr_debug("sep - finish returned error %x\n", res);
}

static int sep_hash_cra_init(struct crypto_tfm *tfm)
{
- struct sep_system_ctx *sctx = crypto_tfm_ctx(tfm);
const char *alg_name = crypto_tfm_alg_name(tfm);

- sctx->sep_used = sep_dev;
-
- dev_dbg(&sctx->sep_used->pdev->dev,
- "sep_hash_cra_init name is %s\n", alg_name);
+ pr_debug("sep_hash_cra_init name is %s\n", alg_name);

crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
- sizeof(struct sep_hash_ctx));
+ sizeof(struct this_task_ctx));
return 0;
}

static void sep_hash_cra_exit(struct crypto_tfm *tfm)
{
- struct sep_system_ctx *sctx = crypto_tfm_ctx(tfm);
-
- dev_dbg(&sctx->sep_used->pdev->dev,
- "sep_hash_cra_exit\n");
- sctx->sep_used = NULL;
+ pr_debug("sep_hash_cra_exit\n");
}

static void sep_hash_init(void *data)
@@ -1910,60 +2152,49 @@ static void sep_hash_init(void *data)
int result;
struct ahash_request *req;
struct crypto_ahash *tfm;
- struct sep_hash_ctx *ctx;
+ struct this_task_ctx *ta_ctx;
struct sep_system_ctx *sctx;
+ unsigned long end_time;
+ int are_we_done_yet;

req = (struct ahash_request *)data;
tfm = crypto_ahash_reqtfm(req);
- ctx = ahash_request_ctx(req);
sctx = crypto_ahash_ctx(tfm);
+ ta_ctx = ahash_request_ctx(req);
+ ta_ctx->sep_used = sep_dev;
+
+ ta_ctx->are_we_done_yet = &are_we_done_yet;

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"sep_hash_init\n");
- sctx->current_hash_stage = HASH_INIT;
+ ta_ctx->current_hash_stage = HASH_INIT;
/* opcode and mode */
- sep_make_header(sctx, &msg_offset, SEP_HASH_INIT_OPCODE);
- sep_write_msg(sctx, &ctx->hash_opmode,
+ sep_make_header(ta_ctx, &msg_offset, SEP_HASH_INIT_OPCODE);
+ sep_write_msg(ta_ctx, &ta_ctx->hash_opmode,
sizeof(u32), sizeof(u32), &msg_offset, 0);
- sep_end_msg(sctx, msg_offset);
+ sep_end_msg(ta_ctx, msg_offset);

- sctx->done_with_transaction = 0;
-
- result = sep_crypto_take_sep(sctx);
+ are_we_done_yet = 0;
+ result = sep_crypto_take_sep(ta_ctx);
if (result) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sep_hash_init take sep failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
}

- /**
- * Sep is now working. Lets wait up to 5 seconds
- * for completion. If it does not complete, we will do
- * a crypto release with -EINVAL to release the
- * kernel crypto infrastructure and let the system
- * continue to boot up
- * We have to wait this long because some crypto
- * operations can take a while
- */
- dev_dbg(&sctx->sep_used->pdev->dev,
- "waiting for done with transaction\n");
-
- sctx->end_time = jiffies + (SEP_TRANSACTION_WAIT_TIME * HZ);
- while ((time_before(jiffies, sctx->end_time)) &&
- (!sctx->done_with_transaction))
+ /* now we sit and wait up to a fixed time for completion */
+ end_time = jiffies + (WAIT_TIME * HZ);
+ while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0))
schedule();

- dev_dbg(&sctx->sep_used->pdev->dev,
- "done waiting for done with transaction\n");
-
- /* are we done? */
- if (!sctx->done_with_transaction) {
- /* Nope, lets release and tell crypto no */
- dev_warn(&sctx->sep_used->pdev->dev,
- "[PID%d] sep_hash_init never finished\n",
- current->pid);
- sep_crypto_release(sctx, -EINVAL);
+ /* Done waiting; still not done yet? */
+ if (are_we_done_yet == 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "hash init never got done\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return;
}
+
}

static void sep_hash_update(void *data)
@@ -1975,6 +2206,8 @@ static void sep_hash_update(void *data)
u32 block_size;
u32 head_len;
u32 tail_len;
+ int are_we_done_yet;
+
static u32 msg[10];
static char small_buf[100];
void *src_ptr;
@@ -1982,184 +2215,174 @@ static void sep_hash_update(void *data)
ssize_t copy_result;
struct ahash_request *req;
struct crypto_ahash *tfm;
- struct sep_hash_ctx *ctx;
+ struct this_task_ctx *ta_ctx;
struct sep_system_ctx *sctx;
+ unsigned long end_time;

req = (struct ahash_request *)data;
tfm = crypto_ahash_reqtfm(req);
- ctx = ahash_request_ctx(req);
sctx = crypto_ahash_ctx(tfm);
+ ta_ctx = ahash_request_ctx(req);
+ ta_ctx->sep_used = sep_dev;
+
+ ta_ctx->are_we_done_yet = &are_we_done_yet;

/* length for queue status */
- sctx->nbytes = req->nbytes;
+ ta_ctx->nbytes = req->nbytes;

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"sep_hash_update\n");
- sctx->current_hash_stage = HASH_UPDATE;
+ ta_ctx->current_hash_stage = HASH_UPDATE;
len = req->nbytes;

block_size = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
tail_len = req->nbytes % block_size;
- dev_dbg(&sctx->sep_used->pdev->dev, "length is %x\n", len);
- dev_dbg(&sctx->sep_used->pdev->dev, "block_size is %x\n", block_size);
- dev_dbg(&sctx->sep_used->pdev->dev, "tail len is %x\n", tail_len);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "length is %x\n", len);
+ 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);

/* Compute header/tail sizes */
- int_ctx = (struct sep_hash_internal_context *)&ctx->
+ int_ctx = (struct sep_hash_internal_context *)&sctx->
hash_private_ctx.internal_context;
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 */
- int_error = sep_oddball_pages(sctx->sep_used, req->src,
+ int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
req->nbytes,
block_size, &new_sg, 1);

if (int_error < 0) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"oddball pages error in crash update\n");
- sep_crypto_release(sctx, -ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, -ENOMEM);
return;
} else if (int_error == 1) {
- sctx->src_sg = new_sg;
- sctx->src_sg_hold = new_sg;
+ ta_ctx->src_sg = new_sg;
+ ta_ctx->src_sg_hold = new_sg;
} else {
- sctx->src_sg = req->src;
- sctx->src_sg_hold = NULL;
+ ta_ctx->src_sg = req->src;
+ ta_ctx->src_sg_hold = NULL;
}

- src_ptr = sg_virt(sctx->src_sg);
+ src_ptr = sg_virt(ta_ctx->src_sg);

- if ((!req->nbytes) || (!ctx->sg)) {
+ if ((!req->nbytes) || (!ta_ctx->src_sg)) {
/* null data */
src_ptr = NULL;
}

- sep_dump_sg(sctx->sep_used, "hash block sg in", sctx->src_sg);
+ sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg);

- sctx->dcb_input_data.app_in_address = src_ptr;
- sctx->dcb_input_data.data_in_size = req->nbytes - (head_len + tail_len);
- sctx->dcb_input_data.app_out_address = NULL;
- sctx->dcb_input_data.block_size = block_size;
- sctx->dcb_input_data.tail_block_size = 0;
- sctx->dcb_input_data.is_applet = 0;
- sctx->dcb_input_data.src_sg = sctx->src_sg;
- sctx->dcb_input_data.dst_sg = NULL;
+ ta_ctx->dcb_input_data.app_in_address = src_ptr;
+ ta_ctx->dcb_input_data.data_in_size =
+ req->nbytes - (head_len + tail_len);
+ ta_ctx->dcb_input_data.app_out_address = NULL;
+ ta_ctx->dcb_input_data.block_size = block_size;
+ ta_ctx->dcb_input_data.tail_block_size = 0;
+ ta_ctx->dcb_input_data.is_applet = 0;
+ ta_ctx->dcb_input_data.src_sg = ta_ctx->src_sg;
+ ta_ctx->dcb_input_data.dst_sg = NULL;

int_error = sep_create_dcb_dmatables_context_kernel(
- sctx->sep_used,
- &sctx->dcb_region,
- &sctx->dmatables_region,
- &sctx->dma_ctx,
- &sctx->dcb_input_data,
+ ta_ctx->sep_used,
+ &ta_ctx->dcb_region,
+ &ta_ctx->dmatables_region,
+ &ta_ctx->dma_ctx,
+ &ta_ctx->dcb_input_data,
1);
if (int_error) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"hash update dma table create failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
return;
}

/* Construct message to SEP */
- sep_make_header(sctx, &msg_offset, SEP_HASH_UPDATE_OPCODE);
+ sep_make_header(ta_ctx, &msg_offset, SEP_HASH_UPDATE_OPCODE);

msg[0] = (u32)0;
msg[1] = (u32)0;
msg[2] = (u32)0;

- sep_write_msg(sctx, msg, sizeof(u32) * 3, sizeof(u32) * 3,
+ sep_write_msg(ta_ctx, msg, sizeof(u32) * 3, sizeof(u32) * 3,
&msg_offset, 0);

/* Handle remainders */

/* Head */
- sep_write_msg(sctx, &head_len, sizeof(u32),
+ sep_write_msg(ta_ctx, &head_len, sizeof(u32),
sizeof(u32), &msg_offset, 0);

if (head_len) {
copy_result = sg_copy_to_buffer(
req->src,
- sep_sg_nents(sctx->src_sg),
+ sep_sg_nents(ta_ctx->src_sg),
small_buf, head_len);

if (copy_result != head_len) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sg head copy failure in hash block\n");
- sep_crypto_release(sctx, -ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, -ENOMEM);
return;
}

- sep_write_msg(sctx, small_buf, head_len,
+ sep_write_msg(ta_ctx, small_buf, head_len,
sizeof(u32) * 32, &msg_offset, 1);
} else {
msg_offset += sizeof(u32) * 32;
}

/* Tail */
- sep_write_msg(sctx, &tail_len, sizeof(u32),
+ sep_write_msg(ta_ctx, &tail_len, sizeof(u32),
sizeof(u32), &msg_offset, 0);

if (tail_len) {
copy_result = sep_copy_offset_sg(
- sctx->sep_used,
- sctx->src_sg,
+ ta_ctx->sep_used,
+ ta_ctx->src_sg,
req->nbytes - tail_len,
small_buf, tail_len);

if (copy_result != tail_len) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sg tail copy failure in hash block\n");
- sep_crypto_release(sctx, -ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, -ENOMEM);
return;
}

- sep_write_msg(sctx, small_buf, tail_len,
+ sep_write_msg(ta_ctx, small_buf, tail_len,
sizeof(u32) * 32, &msg_offset, 1);
} else {
msg_offset += sizeof(u32) * 32;
}

/* Context */
- sep_write_context(sctx, &msg_offset, &ctx->hash_private_ctx,
+ sep_write_context(ta_ctx, &msg_offset, &sctx->hash_private_ctx,
sizeof(struct sep_hash_private_context));

- sep_end_msg(sctx, msg_offset);
- sctx->done_with_transaction = 0;
- int_error = sep_crypto_take_sep(sctx);
+ sep_end_msg(ta_ctx, msg_offset);
+ are_we_done_yet = 0;
+ int_error = sep_crypto_take_sep(ta_ctx);
if (int_error) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sep_hash_update take sep failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
}

- /**
- * Sep is now working. Lets wait up to 5 seconds
- * for completion. If it does not complete, we will do
- * a crypto release with -EINVAL to release the
- * kernel crypto infrastructure and let the system
- * continue to boot up
- * We have to wait this long because some crypto
- * operations can take a while
- */
- dev_dbg(&sctx->sep_used->pdev->dev,
- "waiting for done with transaction\n");
-
- sctx->end_time = jiffies + (SEP_TRANSACTION_WAIT_TIME * HZ);
- while ((time_before(jiffies, sctx->end_time)) &&
- (!sctx->done_with_transaction))
+ /* now we sit and wait up to a fixed time for completion */
+ end_time = jiffies + (WAIT_TIME * HZ);
+ while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0))
schedule();

- dev_dbg(&sctx->sep_used->pdev->dev,
- "done waiting for done with transaction\n");
-
- /* are we done? */
- if (!sctx->done_with_transaction) {
- /* Nope, lets release and tell crypto no */
- dev_warn(&sctx->sep_used->pdev->dev,
- "[PID%d] sep_hash_update never finished\n",
- current->pid);
- sep_crypto_release(sctx, -EINVAL);
+ /* Done waiting; still not done yet? */
+ if (are_we_done_yet == 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "hash update never got done\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return;
}
+
}

static void sep_hash_final(void *data)
@@ -2167,63 +2390,53 @@ static void sep_hash_final(void *data)
u32 msg_offset;
struct ahash_request *req;
struct crypto_ahash *tfm;
- struct sep_hash_ctx *ctx;
+ struct this_task_ctx *ta_ctx;
struct sep_system_ctx *sctx;
int result;
+ unsigned long end_time;
+ int are_we_done_yet;

req = (struct ahash_request *)data;
tfm = crypto_ahash_reqtfm(req);
- ctx = ahash_request_ctx(req);
sctx = crypto_ahash_ctx(tfm);
+ ta_ctx = ahash_request_ctx(req);
+ ta_ctx->sep_used = sep_dev;

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"sep_hash_final\n");
- sctx->current_hash_stage = HASH_FINISH;
+ ta_ctx->current_hash_stage = HASH_FINISH;
+
+ ta_ctx->are_we_done_yet = &are_we_done_yet;

/* opcode and mode */
- sep_make_header(sctx, &msg_offset, SEP_HASH_FINISH_OPCODE);
+ sep_make_header(ta_ctx, &msg_offset, SEP_HASH_FINISH_OPCODE);

/* Context */
- sep_write_context(sctx, &msg_offset, &ctx->hash_private_ctx,
+ sep_write_context(ta_ctx, &msg_offset, &sctx->hash_private_ctx,
sizeof(struct sep_hash_private_context));

- sep_end_msg(sctx, msg_offset);
- sctx->done_with_transaction = 0;
- result = sep_crypto_take_sep(sctx);
+ sep_end_msg(ta_ctx, msg_offset);
+ are_we_done_yet = 0;
+ result = sep_crypto_take_sep(ta_ctx);
if (result) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sep_hash_final take sep failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
}

- /**
- * Sep is now working. Lets wait up to 5 seconds
- * for completion. If it does not complete, we will do
- * a crypto release with -EINVAL to release the
- * kernel crypto infrastructure and let the system
- * continue to boot up
- * We have to wait this long because some crypto
- * operations can take a while
- */
- dev_dbg(&sctx->sep_used->pdev->dev,
- "waiting for done with transaction\n");
-
- sctx->end_time = jiffies + (SEP_TRANSACTION_WAIT_TIME * HZ);
- while ((time_before(jiffies, sctx->end_time)) &&
- (!sctx->done_with_transaction))
+ /* now we sit and wait up to a fixed time for completion */
+ end_time = jiffies + (WAIT_TIME * HZ);
+ while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0))
schedule();

- dev_dbg(&sctx->sep_used->pdev->dev,
- "done waiting for done with transaction\n");
-
- /* are we done? */
- if (!sctx->done_with_transaction) {
- /* Nope, lets release and tell crypto no */
- dev_warn(&sctx->sep_used->pdev->dev,
- "[PID%d] sep_hash_final never finished\n",
- current->pid);
- sep_crypto_release(sctx, -EINVAL);
+ /* Done waiting; still not done yet? */
+ if (are_we_done_yet == 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "hash final job never got done\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return;
}
+
}

static void sep_hash_digest(void *data)
@@ -2234,6 +2447,7 @@ static void sep_hash_digest(void *data)
u32 msg[10];
size_t copy_result;
int result;
+ int are_we_done_yet;
u32 tail_len;
static char small_buf[100];
struct scatterlist *new_sg;
@@ -2241,152 +2455,140 @@ static void sep_hash_digest(void *data)

struct ahash_request *req;
struct crypto_ahash *tfm;
- struct sep_hash_ctx *ctx;
+ struct this_task_ctx *ta_ctx;
struct sep_system_ctx *sctx;
+ unsigned long end_time;

req = (struct ahash_request *)data;
tfm = crypto_ahash_reqtfm(req);
- ctx = ahash_request_ctx(req);
sctx = crypto_ahash_ctx(tfm);
+ ta_ctx = ahash_request_ctx(req);
+ ta_ctx->sep_used = sep_dev;

- dev_dbg(&sctx->sep_used->pdev->dev,
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
"sep_hash_digest\n");
- sctx->current_hash_stage = HASH_DIGEST;
+ ta_ctx->current_hash_stage = HASH_DIGEST;
+
+ ta_ctx->are_we_done_yet = &are_we_done_yet;

/* length for queue status */
- sctx->nbytes = req->nbytes;
+ ta_ctx->nbytes = req->nbytes;

block_size = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
tail_len = req->nbytes % block_size;
- dev_dbg(&sctx->sep_used->pdev->dev, "length is %x\n", req->nbytes);
- dev_dbg(&sctx->sep_used->pdev->dev, "block_size is %x\n", block_size);
- dev_dbg(&sctx->sep_used->pdev->dev, "tail len is %x\n", tail_len);
+ dev_dbg(&ta_ctx->sep_used->pdev->dev, "length is %x\n", req->nbytes);
+ 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 */
- int_error = sep_oddball_pages(sctx->sep_used, req->src,
+ int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
req->nbytes,
block_size, &new_sg, 1);

if (int_error < 0) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"oddball pages error in crash update\n");
- sep_crypto_release(sctx, -ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, -ENOMEM);
return;
} else if (int_error == 1) {
- sctx->src_sg = new_sg;
- sctx->src_sg_hold = new_sg;
+ ta_ctx->src_sg = new_sg;
+ ta_ctx->src_sg_hold = new_sg;
} else {
- sctx->src_sg = req->src;
- sctx->src_sg_hold = NULL;
+ ta_ctx->src_sg = req->src;
+ ta_ctx->src_sg_hold = NULL;
}

- src_ptr = sg_virt(sctx->src_sg);
+ src_ptr = sg_virt(ta_ctx->src_sg);

- if ((!req->nbytes) || (!ctx->sg)) {
+ if ((!req->nbytes) || (!ta_ctx->src_sg)) {
/* null data */
src_ptr = NULL;
}

- sep_dump_sg(sctx->sep_used, "hash block sg in", sctx->src_sg);
+ sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg);

- sctx->dcb_input_data.app_in_address = src_ptr;
- sctx->dcb_input_data.data_in_size = req->nbytes - tail_len;
- sctx->dcb_input_data.app_out_address = NULL;
- sctx->dcb_input_data.block_size = block_size;
- sctx->dcb_input_data.tail_block_size = 0;
- sctx->dcb_input_data.is_applet = 0;
- sctx->dcb_input_data.src_sg = sctx->src_sg;
- sctx->dcb_input_data.dst_sg = NULL;
+ 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;
+ ta_ctx->dcb_input_data.block_size = block_size;
+ ta_ctx->dcb_input_data.tail_block_size = 0;
+ ta_ctx->dcb_input_data.is_applet = 0;
+ ta_ctx->dcb_input_data.src_sg = ta_ctx->src_sg;
+ ta_ctx->dcb_input_data.dst_sg = NULL;

int_error = sep_create_dcb_dmatables_context_kernel(
- sctx->sep_used,
- &sctx->dcb_region,
- &sctx->dmatables_region,
- &sctx->dma_ctx,
- &sctx->dcb_input_data,
+ ta_ctx->sep_used,
+ &ta_ctx->dcb_region,
+ &ta_ctx->dmatables_region,
+ &ta_ctx->dma_ctx,
+ &ta_ctx->dcb_input_data,
1);
if (int_error) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"hash update dma table create failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
return;
}

/* Construct message to SEP */
- sep_make_header(sctx, &msg_offset, SEP_HASH_SINGLE_OPCODE);
- sep_write_msg(sctx, &ctx->hash_opmode,
+ sep_make_header(ta_ctx, &msg_offset, SEP_HASH_SINGLE_OPCODE);
+ sep_write_msg(ta_ctx, &ta_ctx->hash_opmode,
sizeof(u32), sizeof(u32), &msg_offset, 0);

msg[0] = (u32)0;
msg[1] = (u32)0;
msg[2] = (u32)0;

- sep_write_msg(sctx, msg, sizeof(u32) * 3, sizeof(u32) * 3,
+ sep_write_msg(ta_ctx, msg, sizeof(u32) * 3, sizeof(u32) * 3,
&msg_offset, 0);

/* Tail */
- sep_write_msg(sctx, &tail_len, sizeof(u32),
+ sep_write_msg(ta_ctx, &tail_len, sizeof(u32),
sizeof(u32), &msg_offset, 0);

if (tail_len) {
copy_result = sep_copy_offset_sg(
- sctx->sep_used,
- sctx->src_sg,
+ ta_ctx->sep_used,
+ ta_ctx->src_sg,
req->nbytes - tail_len,
small_buf, tail_len);

if (copy_result != tail_len) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sg tail copy failure in hash block\n");
- sep_crypto_release(sctx, -ENOMEM);
+ sep_crypto_release(sctx, ta_ctx, -ENOMEM);
return;
}

- sep_write_msg(sctx, small_buf, tail_len,
+ sep_write_msg(ta_ctx, small_buf, tail_len,
sizeof(u32) * 32, &msg_offset, 1);
} else {
msg_offset += sizeof(u32) * 32;
}

- sep_end_msg(sctx, msg_offset);
+ sep_end_msg(ta_ctx, msg_offset);

- sctx->done_with_transaction = 0;
-
- result = sep_crypto_take_sep(sctx);
+ are_we_done_yet = 0;
+ result = sep_crypto_take_sep(ta_ctx);
if (result) {
- dev_warn(&sctx->sep_used->pdev->dev,
+ dev_warn(&ta_ctx->sep_used->pdev->dev,
"sep_hash_digest take sep failed\n");
- sep_crypto_release(sctx, -EINVAL);
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
}

- /**
- * Sep is now working. Lets wait up to 5 seconds
- * for completion. If it does not complete, we will do
- * a crypto release with -EINVAL to release the
- * kernel crypto infrastructure and let the system
- * continue to boot up
- * We have to wait this long because some crypto
- * operations can take a while
- */
- dev_dbg(&sctx->sep_used->pdev->dev,
- "waiting for done with transaction\n");
-
- sctx->end_time = jiffies + (SEP_TRANSACTION_WAIT_TIME * HZ);
- while ((time_before(jiffies, sctx->end_time)) &&
- (!sctx->done_with_transaction))
+ /* now we sit and wait up to a fixed time for completion */
+ end_time = jiffies + (WAIT_TIME * HZ);
+ while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0))
schedule();

- dev_dbg(&sctx->sep_used->pdev->dev,
- "done waiting for done with transaction\n");
-
- /* are we done? */
- if (!sctx->done_with_transaction) {
- /* Nope, lets release and tell crypto no */
- dev_warn(&sctx->sep_used->pdev->dev,
- "[PID%d] sep_hash_digest never finished\n",
- current->pid);
- sep_crypto_release(sctx, -EINVAL);
+ /* Done waiting; still not done yet? */
+ if (are_we_done_yet == 0) {
+ dev_dbg(&ta_ctx->sep_used->pdev->dev,
+ "hash digest job never got done\n");
+ sep_crypto_release(sctx, ta_ctx, -EINVAL);
+ return;
}
+
}

/**
@@ -2404,6 +2606,7 @@ static void sep_dequeuer(void *data)
struct ahash_request *hash_req;
struct sep_system_ctx *sctx;
struct crypto_ahash *hash_tfm;
+ struct this_task_ctx *ta_ctx;


this_queue = (struct crypto_queue *)data;
@@ -2481,22 +2684,32 @@ static void sep_dequeuer(void *data)
return;
}

- if (sctx->current_hash_stage == HASH_INIT) {
+ ta_ctx = ahash_request_ctx(hash_req);
+
+ if (ta_ctx->current_hash_stage == HASH_INIT) {
pr_debug("sep crypto queue hash init\n");
sep_hash_init((void *)hash_req);
return;
- } else if (sctx->current_hash_stage == HASH_UPDATE) {
+ } else if (ta_ctx->current_hash_stage == HASH_UPDATE) {
pr_debug("sep crypto queue hash update\n");
sep_hash_update((void *)hash_req);
return;
- } else if (sctx->current_hash_stage == HASH_FINISH) {
+ } else if (ta_ctx->current_hash_stage == HASH_FINISH) {
pr_debug("sep crypto queue hash final\n");
sep_hash_final((void *)hash_req);
return;
- } else if (sctx->current_hash_stage == HASH_DIGEST) {
+ } else if (ta_ctx->current_hash_stage == HASH_DIGEST) {
pr_debug("sep crypto queue hash digest\n");
sep_hash_digest((void *)hash_req);
return;
+ } else if (ta_ctx->current_hash_stage == HASH_FINUP_DATA) {
+ pr_debug("sep crypto queue hash digest\n");
+ sep_hash_update((void *)hash_req);
+ return;
+ } else if (ta_ctx->current_hash_stage == HASH_FINUP_FINISH) {
+ pr_debug("sep crypto queue hash digest\n");
+ sep_hash_final((void *)hash_req);
+ return;
} else {
pr_debug("sep crypto queue hash oops nothing\n");
return;
@@ -2507,605 +2720,671 @@ static void sep_dequeuer(void *data)
static int sep_sha1_init(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+
+ pr_debug("sep - doing sha1 init\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha1 init\n");
- sctx->current_request = SHA1;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA1;
- sctx->current_hash_stage = HASH_INIT;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA1;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA1;
+ ta_ctx->current_hash_stage = HASH_INIT;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha1 init cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha1 init cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha1_update(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);

- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha1 update\n");
- sctx->current_request = SHA1;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA1;
- sctx->current_hash_stage = HASH_INIT;
+ pr_debug("sep - doing sha1 update\n");

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA1;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA1;
+ ta_ctx->current_hash_stage = HASH_UPDATE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha1 update cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha1 update cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha1_final(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha1 final\n");
-
- sctx->current_request = SHA1;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA1;
- sctx->current_hash_stage = HASH_FINISH;
-
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha1 final\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA1;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA1;
+ ta_ctx->current_hash_stage = HASH_FINISH;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha1 final cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha1 final cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;

+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha1_digest(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha1 digest\n");
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha1 digest\n");

- sctx->current_request = SHA1;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA1;
- sctx->current_hash_stage = HASH_DIGEST;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA1;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA1;
+ ta_ctx->current_hash_stage = HASH_DIGEST;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha1 digest cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
+}

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha1 digest cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+static int sep_sha1_finup(struct ahash_request *req)
+{
+ int error;
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha1 finup\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA1;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA1;
+ ta_ctx->current_hash_stage = HASH_FINUP_DATA;
+
+ /* lock necessary so that only one entity touches the queues */
+ spin_lock_irq(&queue_lock);
+ error = crypto_enqueue_request(&sep_queue, &req->base);

+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_md5_init(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing md5 init\n");
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing md5 init\n");
+
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

- sctx->current_request = MD5;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_MD5;
- sctx->current_hash_stage = HASH_INIT;
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = MD5;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_MD5;
+ ta_ctx->current_hash_stage = HASH_INIT;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep md5 init cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "md5 init cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;

+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_md5_update(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing md5 update\n");
-
- sctx->current_request = MD5;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_MD5;
- sctx->current_hash_stage = HASH_UPDATE;
-
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing md5 update\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = MD5;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_MD5;
+ ta_ctx->current_hash_stage = HASH_UPDATE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "md5 update cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "md5 update cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_md5_final(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing md5 final\n");
-
- sctx->current_request = MD5;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_MD5;
- sctx->current_hash_stage = HASH_FINISH;
-
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing md5 final\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = MD5;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_MD5;
+ ta_ctx->current_hash_stage = HASH_FINISH;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep md5 final cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "md5 final cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;

+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_md5_digest(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);

- dev_dbg(&sctx->sep_used->pdev->dev, "doing md5 digest\n");
- sctx->current_request = MD5;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_MD5;
- sctx->current_hash_stage = HASH_DIGEST;
+ pr_debug("sep - doing md5 digest\n");

+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = MD5;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_MD5;
+ ta_ctx->current_hash_stage = HASH_DIGEST;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep md5 digest cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "md5 digest cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

-static int sep_sha224_init(struct ahash_request *req)
+static int sep_md5_finup(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha224 init\n");
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+
+ pr_debug("sep - doing md5 finup\n");

- sctx->current_request = SHA224;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA224;
- sctx->current_hash_stage = HASH_INIT;
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = MD5;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_MD5;
+ ta_ctx->current_hash_stage = HASH_FINUP_DATA;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha224 init cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha224 init cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

-static int sep_sha224_update(struct ahash_request *req)
+static int sep_sha224_init(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha224 update\n");
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha224 init\n");
+
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

- sctx->current_request = SHA224;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA224;
- sctx->current_hash_stage = HASH_UPDATE;
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA224;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA224;
+ ta_ctx->current_hash_stage = HASH_INIT;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
+
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
+}

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha224 update cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
+static int sep_sha224_update(struct ahash_request *req)
+{
+ int error;
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha224 update\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA224;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA224;
+ ta_ctx->current_hash_stage = HASH_UPDATE;
+
+ /* lock necessary so that only one entity touches the queues */
+ spin_lock_irq(&queue_lock);
+ error = crypto_enqueue_request(&sep_queue, &req->base);

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha224 update cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha224_final(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha224 final\n");
-
- sctx->current_request = SHA224;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA224;
- sctx->current_hash_stage = HASH_FINISH;
-
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha224 final\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA224;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA224;
+ ta_ctx->current_hash_stage = HASH_FINISH;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha224 final cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha224 final cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha224_digest(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+
+ pr_debug("sep - doing sha224 digest\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "doing 224 digest\n");
- sctx->current_request = SHA224;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA224;
- sctx->current_hash_stage = HASH_DIGEST;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA224;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA224;
+ ta_ctx->current_hash_stage = HASH_DIGEST;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha224 digest cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha256 digest cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

-static int sep_sha256_init(struct ahash_request *req)
+static int sep_sha224_finup(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha256 init\n");
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+
+ pr_debug("sep - doing sha224 finup\n");

- sctx->current_request = SHA256;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA256;
- sctx->current_hash_stage = HASH_INIT;
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA224;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA224;
+ ta_ctx->current_hash_stage = HASH_FINUP_DATA;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha256 init cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha256 init cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

-static int sep_sha256_update(struct ahash_request *req)
+static int sep_sha256_init(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha256 update\n");
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha256 init\n");
+
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

- sctx->current_request = SHA256;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA256;
- sctx->current_hash_stage = HASH_UPDATE;
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA256;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA256;
+ ta_ctx->current_hash_stage = HASH_INIT;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
+
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
+}

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha256 update cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
+static int sep_sha256_update(struct ahash_request *req)
+{
+ int error;
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha256 update\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA256;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA256;
+ ta_ctx->current_hash_stage = HASH_UPDATE;
+
+ /* lock necessary so that only one entity touches the queues */
+ spin_lock_irq(&queue_lock);
+ error = crypto_enqueue_request(&sep_queue, &req->base);

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha256 update cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha256_final(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha256 final\n");
-
- sctx->current_request = SHA256;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA256;
- sctx->current_hash_stage = HASH_FINISH;
-
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+ pr_debug("sep - doing sha256 final\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA256;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA256;
+ ta_ctx->current_hash_stage = HASH_FINISH;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha256 final cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha256 final cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_sha256_digest(struct ahash_request *req)
{
int error;
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct sep_hash_ctx *ctx = ahash_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm);
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);
+
+ pr_debug("sep - doing sha256 digest\n");
+
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

- dev_dbg(&sctx->sep_used->pdev->dev, "doing sha256 digest\n");
- sctx->current_request = SHA256;
- sctx->current_hash_req = req;
- sctx->current_cypher_req = NULL;
- ctx->hash_opmode = SEP_HASH_SHA256;
- sctx->current_hash_stage = HASH_DIGEST;
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA256;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA256;
+ ta_ctx->current_hash_stage = HASH_DIGEST;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
+
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
+}

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep sha256 digest cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
+static int sep_sha256_finup(struct ahash_request *req)
+{
+ int error;
+ int error1;
+ struct this_task_ctx *ta_ctx = ahash_request_ctx(req);

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sha256 digest cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ pr_debug("sep - doing sha256 finup\n");
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = SHA256;
+ ta_ctx->current_hash_req = req;
+ ta_ctx->current_cypher_req = NULL;
+ ta_ctx->hash_opmode = SEP_HASH_SHA256;
+ ta_ctx->current_hash_stage = HASH_FINUP_DATA;
+
+ /* lock necessary so that only one entity touches the queues */
+ spin_lock_irq(&queue_lock);
+ error = crypto_enqueue_request(&sep_queue, &req->base);
+
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_crypto_init(struct crypto_tfm *tfm)
{
- struct sep_system_ctx *sctx = crypto_tfm_ctx(tfm);
const char *alg_name = crypto_tfm_alg_name(tfm);

- sctx->sep_used = sep_dev;
-
if (alg_name == NULL)
- dev_dbg(&sctx->sep_used->pdev->dev, "alg is NULL\n");
+ pr_debug("sep_crypto_init alg is NULL\n");
else
- dev_dbg(&sctx->sep_used->pdev->dev, "alg is %s\n", alg_name);
+ pr_debug("sep_crypto_init alg is %s\n", alg_name);

- tfm->crt_ablkcipher.reqsize = sizeof(struct sep_block_ctx);
- dev_dbg(&sctx->sep_used->pdev->dev, "sep_crypto_init\n");
+ tfm->crt_ablkcipher.reqsize = sizeof(struct this_task_ctx);
return 0;
}

static void sep_crypto_exit(struct crypto_tfm *tfm)
{
- struct sep_system_ctx *sctx = crypto_tfm_ctx(tfm);
- dev_dbg(&sctx->sep_used->pdev->dev, "sep_crypto_exit\n");
- sctx->sep_used = NULL;
+ pr_debug("sep_crypto_exit\n");
}

static int sep_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
@@ -3113,8 +3392,9 @@ static int sep_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
{
struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(tfm);

- dev_dbg(&sctx->sep_used->pdev->dev, "sep aes setkey\n");
+ pr_debug("sep aes setkey\n");

+ pr_debug("tfm is %p sctx is %p\n", tfm, sctx);
switch (keylen) {
case SEP_AES_KEY_128_SIZE:
sctx->aes_key_size = AES_128;
@@ -3129,7 +3409,7 @@ static int sep_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
sctx->aes_key_size = AES_512;
break;
default:
- dev_warn(&sctx->sep_used->pdev->dev, "sep aes key size %x\n",
+ pr_debug("invalid sep aes key size %x\n",
keylen);
return -EINVAL;
}
@@ -3140,7 +3420,6 @@ static int sep_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
sctx->keylen = keylen;
/* Indicate to encrypt/decrypt function to send key to SEP */
sctx->key_sent = 0;
- sctx->last_block = 0;

return 0;
}
@@ -3148,153 +3427,159 @@ static int sep_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
static int sep_aes_ecb_encrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
- crypto_ablkcipher_reqtfm(req));
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
+
+ pr_debug("sep - doing aes ecb encrypt\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "sep aes ecb encrypt\n");
- sctx->current_request = AES_ECB;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->aes_encmode = SEP_AES_ENCRYPT;
- bctx->aes_opmode = SEP_AES_ECB;
- bctx->init_opcode = SEP_AES_INIT_OPCODE;
- bctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = AES_ECB;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->aes_encmode = SEP_AES_ENCRYPT;
+ ta_ctx->aes_opmode = SEP_AES_ECB;
+ ta_ctx->init_opcode = SEP_AES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_ecb_encrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_ecb_encrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_aes_ecb_decrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
- crypto_ablkcipher_reqtfm(req));
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
+
+ pr_debug("sep - doing aes ecb decrypt\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "sep aes ecb decrypt\n");
- sctx->current_request = AES_ECB;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->aes_encmode = SEP_AES_DECRYPT;
- bctx->aes_opmode = SEP_AES_ECB;
- bctx->init_opcode = SEP_AES_INIT_OPCODE;
- bctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = AES_ECB;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->aes_encmode = SEP_AES_DECRYPT;
+ ta_ctx->aes_opmode = SEP_AES_ECB;
+ ta_ctx->init_opcode = SEP_AES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_ecb_decrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_ecb_decrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_aes_cbc_encrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));

- dev_dbg(&sctx->sep_used->pdev->dev, "sep aes cbc encrypt\n");
- sctx->current_request = AES_CBC;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->aes_encmode = SEP_AES_ENCRYPT;
- bctx->aes_opmode = SEP_AES_CBC;
- bctx->init_opcode = SEP_AES_INIT_OPCODE;
- bctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+ pr_debug("sep - doing aes cbc encrypt\n");
+
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));
+
+ pr_debug("tfm is %p sctx is %p and ta_ctx is %p\n",
+ crypto_ablkcipher_reqtfm(req), sctx, ta_ctx);
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = AES_CBC;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->aes_encmode = SEP_AES_ENCRYPT;
+ ta_ctx->aes_opmode = SEP_AES_CBC;
+ ta_ctx->init_opcode = SEP_AES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE;

+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_cbc_encrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_cbc_encrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_aes_cbc_decrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));

- dev_dbg(&sctx->sep_used->pdev->dev, "sep aes cbc decrypt\n");
- sctx->current_request = AES_CBC;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->aes_encmode = SEP_AES_DECRYPT;
- bctx->aes_opmode = SEP_AES_CBC;
- bctx->init_opcode = SEP_AES_INIT_OPCODE;
- bctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+ pr_debug("sep - doing aes cbc decrypt\n");
+
+ pr_debug("tfm is %p sctx is %p and ta_ctx is %p\n",
+ crypto_ablkcipher_reqtfm(req), sctx, ta_ctx);

+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));
+
+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = AES_CBC;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->aes_encmode = SEP_AES_DECRYPT;
+ ta_ctx->aes_opmode = SEP_AES_CBC;
+ ta_ctx->init_opcode = SEP_AES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_cbc_decrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_aes_cbc_decrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
@@ -3304,7 +3589,7 @@ static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
struct crypto_tfm *ctfm = crypto_ablkcipher_tfm(tfm);
u32 *flags = &ctfm->crt_flags;

- dev_dbg(&sctx->sep_used->pdev->dev, "sep des setkey\n");
+ pr_debug("sep des setkey\n");

switch (keylen) {
case DES_KEY_SIZE:
@@ -3317,7 +3602,7 @@ static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
sctx->des_nbr_keys = DES_KEY_3;
break;
default:
- dev_dbg(&sctx->sep_used->pdev->dev, "invalid key size %x\n",
+ pr_debug("invalid key size %x\n",
keylen);
return -EINVAL;
}
@@ -3326,7 +3611,7 @@ static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
(sep_weak_key(key, keylen))) {

*flags |= CRYPTO_TFM_RES_WEAK_KEY;
- dev_warn(&sctx->sep_used->pdev->dev, "weak key\n");
+ pr_debug("weak key\n");
return -EINVAL;
}

@@ -3335,7 +3620,6 @@ static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
sctx->keylen = keylen;
/* Indicate to encrypt/decrypt function to send key to SEP */
sctx->key_sent = 0;
- sctx->last_block = 0;

return 0;
}
@@ -3343,153 +3627,149 @@ static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
static int sep_des_ebc_encrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
- crypto_ablkcipher_reqtfm(req));
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
+
+ pr_debug("sep - doing des ecb encrypt\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "sep des ecb encrypt\n");
- sctx->current_request = DES_ECB;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->des_encmode = SEP_DES_ENCRYPT;
- bctx->des_opmode = SEP_DES_ECB;
- bctx->init_opcode = SEP_DES_INIT_OPCODE;
- bctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = DES_ECB;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->des_encmode = SEP_DES_ENCRYPT;
+ ta_ctx->des_opmode = SEP_DES_ECB;
+ ta_ctx->init_opcode = SEP_DES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_ecb_encrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_ecb_encrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_des_ebc_decrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
- crypto_ablkcipher_reqtfm(req));
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
+
+ pr_debug("sep - doing des ecb decrypt\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "sep des ecb decrypt\n");
- sctx->current_request = DES_ECB;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->des_encmode = SEP_DES_DECRYPT;
- bctx->des_opmode = SEP_DES_ECB;
- bctx->init_opcode = SEP_DES_INIT_OPCODE;
- bctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = DES_ECB;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->des_encmode = SEP_DES_DECRYPT;
+ ta_ctx->des_opmode = SEP_DES_ECB;
+ ta_ctx->init_opcode = SEP_DES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_ecb_decrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_ecb_decrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_des_cbc_encrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
- crypto_ablkcipher_reqtfm(req));
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
+
+ pr_debug("sep - doing des cbc encrypt\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "sep des cbc encrypt\n");
- sctx->current_request = DES_CBC;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->des_encmode = SEP_DES_ENCRYPT;
- bctx->des_opmode = SEP_DES_CBC;
- bctx->init_opcode = SEP_DES_INIT_OPCODE;
- bctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = DES_CBC;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->des_encmode = SEP_DES_ENCRYPT;
+ ta_ctx->des_opmode = SEP_DES_CBC;
+ ta_ctx->init_opcode = SEP_DES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);

- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_cbc_encrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }
-
- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_cbc_encrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static int sep_des_cbc_decrypt(struct ablkcipher_request *req)
{
int error;
- struct sep_block_ctx *bctx = ablkcipher_request_ctx(req);
- struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(
- crypto_ablkcipher_reqtfm(req));
+ int error1;
+ struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req);
+
+ pr_debug("sep - doing des ecb decrypt\n");

- dev_dbg(&sctx->sep_used->pdev->dev, "sep des cbc decrypt\n");
- sctx->current_request = DES_CBC;
- sctx->current_hash_req = NULL;
- sctx->current_cypher_req = req;
- bctx->des_encmode = SEP_DES_DECRYPT;
- bctx->des_opmode = SEP_DES_CBC;
- bctx->init_opcode = SEP_DES_INIT_OPCODE;
- bctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+ /* Clear out task context */
+ memset(ta_ctx, 0, sizeof(struct this_task_ctx));

+ ta_ctx->sep_used = sep_dev;
+ ta_ctx->current_request = DES_CBC;
+ ta_ctx->current_hash_req = NULL;
+ ta_ctx->current_cypher_req = req;
+ ta_ctx->des_encmode = SEP_DES_DECRYPT;
+ ta_ctx->des_opmode = SEP_DES_CBC;
+ ta_ctx->init_opcode = SEP_DES_INIT_OPCODE;
+ ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE;
+
+ /* lock necessary so that only one entity touches the queues */
spin_lock_irq(&queue_lock);
error = crypto_enqueue_request(&sep_queue, &req->base);
- spin_unlock_irq(&queue_lock);
-
- if ((error != 0) && (error != -EINPROGRESS)) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_cbc_decrypt cant enqueue\n");
- sep_crypto_release(sctx, error);
- return error;
- }

- error = sep_submit_work(sctx->sep_used->workqueue, sep_dequeuer,
- (void *)&sep_queue);
- if (error) {
- dev_warn(&sctx->sep_used->pdev->dev,
- "sep_des_cbc_decrypt cannot submit queue\n");
- sep_crypto_release(sctx, -EINVAL);
- return -EINVAL;
- }
- return -EINPROGRESS;
+ if ((error != 0) && (error != -EINPROGRESS))
+ pr_debug(" sep - crypto enqueue failed: %x\n",
+ error);
+ error1 = sep_submit_work(ta_ctx->sep_used->workqueue,
+ sep_dequeuer, (void *)&sep_queue);
+ if (error1)
+ pr_debug(" sep - workqueue submit failed: %x\n",
+ error1);
+ spin_unlock_irq(&queue_lock);
+ /* We return result of crypto enqueue */
+ return error;
}

static struct ahash_alg hash_algs[] = {
@@ -3498,6 +3778,7 @@ static struct ahash_alg hash_algs[] = {
.update = sep_sha1_update,
.final = sep_sha1_final,
.digest = sep_sha1_digest,
+ .finup = sep_sha1_finup,
.halg = {
.digestsize = SHA1_DIGEST_SIZE,
.base = {
@@ -3520,6 +3801,7 @@ static struct ahash_alg hash_algs[] = {
.update = sep_md5_update,
.final = sep_md5_final,
.digest = sep_md5_digest,
+ .finup = sep_md5_finup,
.halg = {
.digestsize = MD5_DIGEST_SIZE,
.base = {
@@ -3542,6 +3824,7 @@ static struct ahash_alg hash_algs[] = {
.update = sep_sha224_update,
.final = sep_sha224_final,
.digest = sep_sha224_digest,
+ .finup = sep_sha224_finup,
.halg = {
.digestsize = SHA224_DIGEST_SIZE,
.base = {
@@ -3564,6 +3847,7 @@ static struct ahash_alg hash_algs[] = {
.update = sep_sha256_update,
.final = sep_sha256_final,
.digest = sep_sha256_digest,
+ .finup = sep_sha256_finup,
.halg = {
.digestsize = SHA256_DIGEST_SIZE,
.base = {
@@ -3621,6 +3905,7 @@ static struct crypto_alg crypto_algs[] = {
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = sep_aes_setkey,
.encrypt = sep_aes_cbc_encrypt,
+ .ivsize = AES_BLOCK_SIZE,
.decrypt = sep_aes_cbc_decrypt,
}
},
@@ -3661,6 +3946,7 @@ static struct crypto_alg crypto_algs[] = {
.max_keysize = DES_KEY_SIZE,
.setkey = sep_des_setkey,
.encrypt = sep_des_cbc_encrypt,
+ .ivsize = DES_BLOCK_SIZE,
.decrypt = sep_des_cbc_decrypt,
}
},
@@ -3714,7 +4000,8 @@ int sep_crypto_setup(void)

crypto_init_queue(&sep_queue, SEP_QUEUE_LENGTH);

- sep_dev->workqueue = create_workqueue("sep_crypto_workqueue");
+ sep_dev->workqueue = create_singlethread_workqueue(
+ "sep_crypto_workqueue");
if (!sep_dev->workqueue) {
dev_warn(&sep_dev->pdev->dev, "cant create workqueue\n");
return -ENOMEM;
@@ -3723,7 +4010,6 @@ int sep_crypto_setup(void)
i = 0;
j = 0;

- spin_lock_init(&sep_dev->busy_lock);
spin_lock_init(&queue_lock);

err = 0;
diff --git a/drivers/staging/sep/sep_crypto.h b/drivers/staging/sep/sep_crypto.h
index 52c58c4..155c3c9 100644
--- a/drivers/staging/sep/sep_crypto.h
+++ b/drivers/staging/sep/sep_crypto.h
@@ -117,7 +117,7 @@

#define SEP_TRANSACTION_WAIT_TIME 5

-#define SEP_QUEUE_LENGTH 10
+#define SEP_QUEUE_LENGTH 2
/* Macros */
#ifndef __LITTLE_ENDIAN
#define CHG_ENDIAN(val) \
@@ -270,9 +270,26 @@ struct sep_hash_private_context {
u8 internal_context[sizeof(struct sep_hash_internal_context)];
};

+union key_t {
+ struct sep_des_key des;
+ u32 aes[SEP_AES_MAX_KEY_SIZE_WORDS];
+};
+
/* Context structures for crypto API */
-struct sep_block_ctx {
- struct sep_device *sep;
+/**
+ * Structure for this current task context
+ * This same structure is used for both hash
+ * and crypt in order to reduce duplicate code
+ * for stuff that is done for both hash operations
+ * and crypto operations. We cannot trust that the
+ * system context is not pulled out from under
+ * us during operation to operation, so all
+ * critical stuff such as data pointers must
+ * be in in a context that is exclusive for this
+ * particular task at hand.
+ */
+struct this_task_ctx {
+ struct sep_device *sep_used;
u32 done;
unsigned char iv[100];
enum des_enc_mode des_encmode;
@@ -284,36 +301,7 @@ struct sep_block_ctx {
size_t data_length;
size_t ivlen;
struct ablkcipher_walk walk;
- struct sep_des_private_context des_private_ctx;
- struct sep_aes_private_context aes_private_ctx;
- };
-
-struct sep_hash_ctx {
- u32 done;
- unsigned char *buf;
- size_t buflen;
- unsigned char *dgst;
- int digest_size_words;
- int digest_size_bytes;
- int block_size_words;
- int block_size_bytes;
- struct scatterlist *sg;
- enum hash_op_mode hash_opmode;
- struct sep_hash_private_context hash_private_ctx;
- };
-
-struct sep_system_ctx {
- struct sep_device *sep_used;
- union key_t {
- struct sep_des_key des;
- u32 aes[SEP_AES_MAX_KEY_SIZE_WORDS];
- } key;
int i_own_sep; /* Do I have custody of the sep? */
- size_t keylen;
- enum des_numkey des_nbr_keys;
- enum aes_keysize aes_key_size;
- u32 key_sent; /* Indicate if key is sent to sep */
- u32 last_block; /* Indicate that this is the final block */
struct sep_call_status call_status;
struct build_dcb_struct_kernel dcb_input_data;
struct sep_dma_context *dma_ctx;
@@ -331,9 +319,32 @@ struct sep_system_ctx {
struct ahash_request *current_hash_req;
struct ablkcipher_request *current_cypher_req;
enum type_of_request current_request;
+ int digest_size_words;
+ int digest_size_bytes;
+ int block_size_words;
+ int block_size_bytes;
+ enum hash_op_mode hash_opmode;
enum hash_stage current_hash_stage;
- int done_with_transaction;
+ /**
+ * Not that this is a pointer. The are_we_done_yet variable is
+ * allocated by the task function. This way, even if the kernel
+ * crypto infrastructure has grabbed the task structure out from
+ * under us, the task function can still see this variable.
+ */
+ int *are_we_done_yet;
+ unsigned long end_time;
+ };
+
+struct sep_system_ctx {
+ union key_t key;
+ size_t keylen;
+ int key_sent;
+ enum des_numkey des_nbr_keys;
+ enum aes_keysize aes_key_size;
unsigned long end_time;
+ struct sep_des_private_context des_private_ctx;
+ struct sep_aes_private_context aes_private_ctx;
+ struct sep_hash_private_context hash_private_ctx;
};

/* work queue structures */
diff --git a/drivers/staging/sep/sep_dev.h b/drivers/staging/sep/sep_dev.h
index 66d8e95..5f6a07f 100644
--- a/drivers/staging/sep/sep_dev.h
+++ b/drivers/staging/sep/sep_dev.h
@@ -93,8 +93,7 @@ struct sep_device {
enum hash_stage current_hash_stage;
struct ahash_request *current_hash_req;
struct ablkcipher_request *current_cypher_req;
- struct sep_system_ctx *sctx;
- spinlock_t busy_lock;
+ struct this_task_ctx *ta_ctx;
struct workqueue_struct *workqueue;
};



\
 
 \ /
  Last update: 2012-02-10 14:43    [W:0.245 / U:0.508 seconds]
©2003-2014 Jasper Spaans. Advertise on this site