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kernel: update to 2.6.32.59.

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also add mv_cesa cryptochip patches for kirkwood soc.
This commit is contained in:
Arne Fitzenreiter
2012-03-31 11:14:08 +02:00
parent cd7507011b
commit 903d87f491
2 changed files with 653 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lfs/linux
View File

@@ -24,8 +24,8 @@
include Config
PATCHLEVEL = .58
VER = 2.6.32.58
PATCHLEVEL = .59
VER = 2.6.32.59
THISAPP = linux-$(VER)
DL_FILE = $(THISAPP).tar.bz2
@@ -82,7 +82,7 @@ patch-2.6.16-nath323-1.3.bz2 = $(URL_IPFIRE)/patch-2.6.16-nath323-1.3.bz2
reiser4-for-2.6.32.patch.bz2 = $(URL_IPFIRE)/reiser4-for-2.6.32.patch.bz2
xen-patches-2.6.32-2f.tar.bz2 = $(URL_IPFIRE)/xen-patches-2.6.32-2f.tar.bz2
$(DL_FILE)_MD5 = 13fd1dec69337dd47eef3a1870c20314
$(DL_FILE)_MD5 = 69c68c4a8eb0f04b051a7dbcff16f6d0
netfilter-layer7-v2.22.tar.gz_MD5 = 98dff8a3d5a31885b73341633f69501f
patch-2.6.16-nath323-1.3.bz2_MD5 = f926409ff703a307baf54b57ab75d138
reiser4-for-2.6.32.patch.bz2_MD5 = 3246397973d9271eb8e6d7c97c5d2d91
@@ -163,6 +163,9 @@ endif
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_ipg-fix-driver-name.patch
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_mcs7830-fix-driver-name.patch
# Fix mv_cesa
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32-crypto-mv_cesa.patch
ifeq "$(KCFG)" "-kirkwood"
# Add dreamplug,guruplug and icy 62x0 support on ARM-kirkwood
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.57-arm_kirkwood_setups.patch

647
src/patches/linux-2.6.32-crypto-mv_cesa.patch Normal file
View File

@@ -0,0 +1,647 @@
From 0328ac267564089d9cedfb568f936d30a6debd21 Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:25:37 +0300
Subject: [PATCH] crypto: mv_cesa - Invoke the user callback from a softirq
context
Invoke the user callback from a softirq context
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index b21ef63..3e60ba9 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -275,7 +275,9 @@ static void dequeue_complete_req(void)
sg_miter_stop(&cpg->p.dst_sg_it);
mv_crypto_algo_completion();
cpg->eng_st = ENGINE_IDLE;
+ local_bh_disable();
req->base.complete(&req->base, 0);
+ local_bh_enable();
}
}
--
1.7.6.5
From 6bc6fcd609080461682c5cc0a1e3bf4345d6419d Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:25:56 +0300
Subject: [PATCH] crypto: mv_cesa - Remove compiler warning in mv_cesa driver
Remove compiler warning
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 3e60ba9..37d9f06 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -178,6 +178,7 @@ static void mv_process_current_q(int first_block)
op.config = CFG_OP_CRYPT_ONLY | CFG_ENCM_AES | CFG_ENC_MODE_ECB;
break;
case COP_AES_CBC:
+ default:
op.config = CFG_OP_CRYPT_ONLY | CFG_ENCM_AES | CFG_ENC_MODE_CBC;
op.enc_iv = ENC_IV_POINT(SRAM_DATA_IV) |
ENC_IV_BUF_POINT(SRAM_DATA_IV_BUF);
--
1.7.6.5
X-Git-Url: http://git.kernelconcepts.de/?p=mv-sheeva.git;a=blobdiff_plain;f=drivers%2Fcrypto%2Fmv_cesa.c;h=018a95ce0c9b0d6e6a13bff1522630799bc445b3;hp=37d9f0688e7575a3e366f6bb9eda5adc5db807b5;hb=f565e67ec1b8f4a95d21550f9b879fe86b4132e0;hpb=6bc6fcd609080461682c5cc0a1e3bf4345d6419d
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 37d9f06..018a95c 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -242,6 +242,8 @@ static void dequeue_complete_req(void)
struct ablkcipher_request *req = cpg->cur_req;
void *buf;
int ret;
+ int need_copy_len = cpg->p.crypt_len;
+ int sram_offset = 0;
cpg->p.total_req_bytes += cpg->p.crypt_len;
do {
@@ -257,14 +259,16 @@ static void dequeue_complete_req(void)
buf = cpg->p.dst_sg_it.addr;
buf += cpg->p.dst_start;
- dst_copy = min(cpg->p.crypt_len, cpg->p.sg_dst_left);
-
- memcpy(buf, cpg->sram + SRAM_DATA_OUT_START, dst_copy);
+ dst_copy = min(need_copy_len, cpg->p.sg_dst_left);
+ memcpy(buf,
+ cpg->sram + SRAM_DATA_OUT_START + sram_offset,
+ dst_copy);
+ sram_offset += dst_copy;
cpg->p.sg_dst_left -= dst_copy;
- cpg->p.crypt_len -= dst_copy;
+ need_copy_len -= dst_copy;
cpg->p.dst_start += dst_copy;
- } while (cpg->p.crypt_len > 0);
+ } while (need_copy_len > 0);
BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE);
if (cpg->p.total_req_bytes < req->nbytes) {
From 15d4dd3594221f11a7730fcf2d5f9942b96cdd7e Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:27:02 +0300
Subject: [PATCH] crypto: mv_cesa - Fix situations where the src sglist spans
more data than the request asks for
Fix for situations where the source scatterlist spans more data than the
request nbytes
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 66 ++++++++++++++++++++++++++++++---------------
1 files changed, 44 insertions(+), 22 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 018a95c..096f9ff 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -143,27 +143,45 @@ static int mv_setkey_aes(struct crypto_ablkcipher *cipher, const u8 *key,
return 0;
}
-static void setup_data_in(struct ablkcipher_request *req)
+static void copy_src_to_buf(struct req_progress *p, char *dbuf, int len)
{
int ret;
- void *buf;
-
- if (!cpg->p.sg_src_left) {
- ret = sg_miter_next(&cpg->p.src_sg_it);
- BUG_ON(!ret);
- cpg->p.sg_src_left = cpg->p.src_sg_it.length;
- cpg->p.src_start = 0;
- }
+ void *sbuf;
+ int copied = 0;
- cpg->p.crypt_len = min(cpg->p.sg_src_left, cpg->max_req_size);
-
- buf = cpg->p.src_sg_it.addr;
- buf += cpg->p.src_start;
+ while (1) {
+ if (!p->sg_src_left) {
+ ret = sg_miter_next(&p->src_sg_it);
+ BUG_ON(!ret);
+ p->sg_src_left = p->src_sg_it.length;
+ p->src_start = 0;
+ }
- memcpy(cpg->sram + SRAM_DATA_IN_START, buf, cpg->p.crypt_len);
+ sbuf = p->src_sg_it.addr + p->src_start;
+
+ if (p->sg_src_left <= len - copied) {
+ memcpy(dbuf + copied, sbuf, p->sg_src_left);
+ copied += p->sg_src_left;
+ p->sg_src_left = 0;
+ if (copied >= len)
+ break;
+ } else {
+ int copy_len = len - copied;
+ memcpy(dbuf + copied, sbuf, copy_len);
+ p->src_start += copy_len;
+ p->sg_src_left -= copy_len;
+ break;
+ }
+ }
+}
- cpg->p.sg_src_left -= cpg->p.crypt_len;
- cpg->p.src_start += cpg->p.crypt_len;
+static void setup_data_in(struct ablkcipher_request *req)
+{
+ struct req_progress *p = &cpg->p;
+ p->crypt_len =
+ min((int)req->nbytes - p->total_req_bytes, cpg->max_req_size);
+ copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START,
+ p->crypt_len);
}
static void mv_process_current_q(int first_block)
@@ -289,12 +307,16 @@ static void dequeue_complete_req(void)
static int count_sgs(struct scatterlist *sl, unsigned int total_bytes)
{
int i = 0;
-
- do {
- total_bytes -= sl[i].length;
- i++;
-
- } while (total_bytes > 0);
+ size_t cur_len;
+
+ while (1) {
+ cur_len = sl[i].length;
+ ++i;
+ if (total_bytes > cur_len)
+ total_bytes -= cur_len;
+ else
+ break;
+ }
return i;
}
--
1.7.6.5
From 3b61a90502481045f56c1c41a2af35ee48ca8b80 Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:27:33 +0300
Subject: [PATCH] crypto: mv_cesa - Enqueue generic async requests
Enqueue generic async requests rather than ablkcipher requests
in the driver's queue
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 43 ++++++++++++++++++++++++-------------------
1 files changed, 24 insertions(+), 19 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 096f9ff..8891e2e 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -39,6 +39,7 @@ enum engine_status {
* @sg_src_left: bytes left in src to process (scatter list)
* @src_start: offset to add to src start position (scatter list)
* @crypt_len: length of current crypt process
+ * @hw_nbytes: total bytes to process in hw for this request
* @sg_dst_left: bytes left dst to process in this scatter list
* @dst_start: offset to add to dst start position (scatter list)
* @total_req_bytes: total number of bytes processed (request).
@@ -55,6 +56,7 @@ struct req_progress {
int sg_src_left;
int src_start;
int crypt_len;
+ int hw_nbytes;
/* dst mostly */
int sg_dst_left;
int dst_start;
@@ -71,7 +73,7 @@ struct crypto_priv {
spinlock_t lock;
struct crypto_queue queue;
enum engine_status eng_st;
- struct ablkcipher_request *cur_req;
+ struct crypto_async_request *cur_req;
struct req_progress p;
int max_req_size;
int sram_size;
@@ -175,18 +177,18 @@ static void copy_src_to_buf(struct req_progress *p, char *dbuf, int len)
}
}
-static void setup_data_in(struct ablkcipher_request *req)
+static void setup_data_in(void)
{
struct req_progress *p = &cpg->p;
p->crypt_len =
- min((int)req->nbytes - p->total_req_bytes, cpg->max_req_size);
+ min(p->hw_nbytes - p->total_req_bytes, cpg->max_req_size);
copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START,
p->crypt_len);
}
static void mv_process_current_q(int first_block)
{
- struct ablkcipher_request *req = cpg->cur_req;
+ struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req);
struct mv_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
struct sec_accel_config op;
@@ -229,7 +231,7 @@ static void mv_process_current_q(int first_block)
ENC_P_DST(SRAM_DATA_OUT_START);
op.enc_key_p = SRAM_DATA_KEY_P;
- setup_data_in(req);
+ setup_data_in();
op.enc_len = cpg->p.crypt_len;
memcpy(cpg->sram + SRAM_CONFIG, &op,
sizeof(struct sec_accel_config));
@@ -246,7 +248,7 @@ static void mv_process_current_q(int first_block)
static void mv_crypto_algo_completion(void)
{
- struct ablkcipher_request *req = cpg->cur_req;
+ struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req);
struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
if (req_ctx->op != COP_AES_CBC)
@@ -257,7 +259,7 @@ static void mv_crypto_algo_completion(void)
static void dequeue_complete_req(void)
{
- struct ablkcipher_request *req = cpg->cur_req;
+ struct crypto_async_request *req = cpg->cur_req;
void *buf;
int ret;
int need_copy_len = cpg->p.crypt_len;
@@ -289,7 +291,7 @@ static void dequeue_complete_req(void)
} while (need_copy_len > 0);
BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE);
- if (cpg->p.total_req_bytes < req->nbytes) {
+ if (cpg->p.total_req_bytes < cpg->p.hw_nbytes) {
/* process next scatter list entry */
cpg->eng_st = ENGINE_BUSY;
mv_process_current_q(0);
@@ -299,7 +301,7 @@ static void dequeue_complete_req(void)
mv_crypto_algo_completion();
cpg->eng_st = ENGINE_IDLE;
local_bh_disable();
- req->base.complete(&req->base, 0);
+ req->complete(req, 0);
local_bh_enable();
}
}
@@ -323,16 +325,19 @@ static int count_sgs(struct scatterlist *sl, unsigned int total_bytes)
static void mv_enqueue_new_req(struct ablkcipher_request *req)
{
+ struct req_progress *p = &cpg->p;
int num_sgs;
- cpg->cur_req = req;
- memset(&cpg->p, 0, sizeof(struct req_progress));
+ cpg->cur_req = &req->base;
+ memset(p, 0, sizeof(struct req_progress));
+ p->hw_nbytes = req->nbytes;
num_sgs = count_sgs(req->src, req->nbytes);
- sg_miter_start(&cpg->p.src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);
+ sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);
num_sgs = count_sgs(req->dst, req->nbytes);
- sg_miter_start(&cpg->p.dst_sg_it, req->dst, num_sgs, SG_MITER_TO_SG);
+ sg_miter_start(&p->dst_sg_it, req->dst, num_sgs, SG_MITER_TO_SG);
+
mv_process_current_q(1);
}
@@ -378,13 +383,13 @@ static int queue_manag(void *data)
return 0;
}
-static int mv_handle_req(struct ablkcipher_request *req)
+static int mv_handle_req(struct crypto_async_request *req)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&cpg->lock, flags);
- ret = ablkcipher_enqueue_request(&cpg->queue, req);
+ ret = crypto_enqueue_request(&cpg->queue, req);
spin_unlock_irqrestore(&cpg->lock, flags);
wake_up_process(cpg->queue_th);
return ret;
@@ -397,7 +402,7 @@ static int mv_enc_aes_ecb(struct ablkcipher_request *req)
req_ctx->op = COP_AES_ECB;
req_ctx->decrypt = 0;
- return mv_handle_req(req);
+ return mv_handle_req(&req->base);
}
static int mv_dec_aes_ecb(struct ablkcipher_request *req)
@@ -409,7 +414,7 @@ static int mv_dec_aes_ecb(struct ablkcipher_request *req)
req_ctx->decrypt = 1;
compute_aes_dec_key(ctx);
- return mv_handle_req(req);
+ return mv_handle_req(&req->base);
}
static int mv_enc_aes_cbc(struct ablkcipher_request *req)
@@ -419,7 +424,7 @@ static int mv_enc_aes_cbc(struct ablkcipher_request *req)
req_ctx->op = COP_AES_CBC;
req_ctx->decrypt = 0;
- return mv_handle_req(req);
+ return mv_handle_req(&req->base);
}
static int mv_dec_aes_cbc(struct ablkcipher_request *req)
@@ -431,7 +436,7 @@ static int mv_dec_aes_cbc(struct ablkcipher_request *req)
req_ctx->decrypt = 1;
compute_aes_dec_key(ctx);
- return mv_handle_req(req);
+ return mv_handle_req(&req->base);
}
static int mv_cra_init(struct crypto_tfm *tfm)
--
1.7.6.5
From 7a5f691ef03f4c01d2703b5ec4ddd4c17e645dec Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:29:16 +0300
Subject: [PATCH] crypto: mv_cesa - Rename a variable to a more suitable name
Rename a variable to a more suitable name
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 8891e2e..4262932 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -42,7 +42,7 @@ enum engine_status {
* @hw_nbytes: total bytes to process in hw for this request
* @sg_dst_left: bytes left dst to process in this scatter list
* @dst_start: offset to add to dst start position (scatter list)
- * @total_req_bytes: total number of bytes processed (request).
+ * @hw_processed_bytes: number of bytes processed by hw (request).
*
* sg helper are used to iterate over the scatterlist. Since the size of the
* SRAM may be less than the scatter size, this struct struct is used to keep
@@ -60,7 +60,7 @@ struct req_progress {
/* dst mostly */
int sg_dst_left;
int dst_start;
- int total_req_bytes;
+ int hw_processed_bytes;
};
struct crypto_priv {
@@ -181,7 +181,7 @@ static void setup_data_in(void)
{
struct req_progress *p = &cpg->p;
p->crypt_len =
- min(p->hw_nbytes - p->total_req_bytes, cpg->max_req_size);
+ min(p->hw_nbytes - p->hw_processed_bytes, cpg->max_req_size);
copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START,
p->crypt_len);
}
@@ -265,7 +265,7 @@ static void dequeue_complete_req(void)
int need_copy_len = cpg->p.crypt_len;
int sram_offset = 0;
- cpg->p.total_req_bytes += cpg->p.crypt_len;
+ cpg->p.hw_processed_bytes += cpg->p.crypt_len;
do {
int dst_copy;
@@ -291,7 +291,7 @@ static void dequeue_complete_req(void)
} while (need_copy_len > 0);
BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE);
- if (cpg->p.total_req_bytes < cpg->p.hw_nbytes) {
+ if (cpg->p.hw_processed_bytes < cpg->p.hw_nbytes) {
/* process next scatter list entry */
cpg->eng_st = ENGINE_BUSY;
mv_process_current_q(0);
--
1.6.5.GIT
From a58094ac5f95d6969e5c52ff096d2fd2864542af Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:30:19 +0300
Subject: [PATCH] crypto: mv_cesa - Execute some code via function pointers
rathr than direct calls
Execute some code via function pointers rathr than direct calls
(to allow customization in the hashing request)
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 4262932..2b4f07a 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -51,6 +51,8 @@ enum engine_status {
struct req_progress {
struct sg_mapping_iter src_sg_it;
struct sg_mapping_iter dst_sg_it;
+ void (*complete) (void);
+ void (*process) (int is_first);
/* src mostly */
int sg_src_left;
@@ -251,6 +253,9 @@ static void mv_crypto_algo_completion(void)
struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req);
struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
+ sg_miter_stop(&cpg->p.src_sg_it);
+ sg_miter_stop(&cpg->p.dst_sg_it);
+
if (req_ctx->op != COP_AES_CBC)
return ;
@@ -294,11 +299,9 @@ static void dequeue_complete_req(void)
if (cpg->p.hw_processed_bytes < cpg->p.hw_nbytes) {
/* process next scatter list entry */
cpg->eng_st = ENGINE_BUSY;
- mv_process_current_q(0);
+ cpg->p.process(0);
} else {
- sg_miter_stop(&cpg->p.src_sg_it);
- sg_miter_stop(&cpg->p.dst_sg_it);
- mv_crypto_algo_completion();
+ cpg->p.complete();
cpg->eng_st = ENGINE_IDLE;
local_bh_disable();
req->complete(req, 0);
@@ -331,6 +334,8 @@ static void mv_enqueue_new_req(struct ablkcipher_request *req)
cpg->cur_req = &req->base;
memset(p, 0, sizeof(struct req_progress));
p->hw_nbytes = req->nbytes;
+ p->complete = mv_crypto_algo_completion;
+ p->process = mv_process_current_q;
num_sgs = count_sgs(req->src, req->nbytes);
sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);
--
1.7.6.5
X-Git-Url: http://git.kernelconcepts.de/?p=mv-sheeva.git;a=blobdiff_plain;f=drivers%2Fcrypto%2Fmv_cesa.c;h=49a22060fb51a46afff004ddade3dacf378aecd8;hp=2b4f07aa89e8ba7422de65eea027e06daa5f7797;hb=f0d03deaad05d9cc99cd2ee0475c9ecd726c19ae;hpb=a58094ac5f95d6969e5c52ff096d2fd2864542af
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 2b4f07a..49a2206 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -40,6 +40,7 @@ enum engine_status {
* @src_start: offset to add to src start position (scatter list)
* @crypt_len: length of current crypt process
* @hw_nbytes: total bytes to process in hw for this request
+ * @copy_back: whether to copy data back (crypt) or not (hash)
* @sg_dst_left: bytes left dst to process in this scatter list
* @dst_start: offset to add to dst start position (scatter list)
* @hw_processed_bytes: number of bytes processed by hw (request).
@@ -60,6 +61,7 @@ struct req_progress {
int crypt_len;
int hw_nbytes;
/* dst mostly */
+ int copy_back;
int sg_dst_left;
int dst_start;
int hw_processed_bytes;
@@ -267,33 +269,35 @@ static void dequeue_complete_req(void)
struct crypto_async_request *req = cpg->cur_req;
void *buf;
int ret;
- int need_copy_len = cpg->p.crypt_len;
- int sram_offset = 0;
-
cpg->p.hw_processed_bytes += cpg->p.crypt_len;
- do {
- int dst_copy;
+ if (cpg->p.copy_back) {
+ int need_copy_len = cpg->p.crypt_len;
+ int sram_offset = 0;
+ do {
+ int dst_copy;
+
+ if (!cpg->p.sg_dst_left) {
+ ret = sg_miter_next(&cpg->p.dst_sg_it);
+ BUG_ON(!ret);
+ cpg->p.sg_dst_left = cpg->p.dst_sg_it.length;
+ cpg->p.dst_start = 0;
+ }
- if (!cpg->p.sg_dst_left) {
- ret = sg_miter_next(&cpg->p.dst_sg_it);
- BUG_ON(!ret);
- cpg->p.sg_dst_left = cpg->p.dst_sg_it.length;
- cpg->p.dst_start = 0;
- }
+ buf = cpg->p.dst_sg_it.addr;
+ buf += cpg->p.dst_start;
- buf = cpg->p.dst_sg_it.addr;
- buf += cpg->p.dst_start;
+ dst_copy = min(need_copy_len, cpg->p.sg_dst_left);
- dst_copy = min(need_copy_len, cpg->p.sg_dst_left);
+ memcpy(buf,
+ cpg->sram + SRAM_DATA_OUT_START + sram_offset,
+ dst_copy);
+ sram_offset += dst_copy;
+ cpg->p.sg_dst_left -= dst_copy;
+ need_copy_len -= dst_copy;
+ cpg->p.dst_start += dst_copy;
+ } while (need_copy_len > 0);
+ }
- memcpy(buf,
- cpg->sram + SRAM_DATA_OUT_START + sram_offset,
- dst_copy);
- sram_offset += dst_copy;
- cpg->p.sg_dst_left -= dst_copy;
- need_copy_len -= dst_copy;
- cpg->p.dst_start += dst_copy;
- } while (need_copy_len > 0);
BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE);
if (cpg->p.hw_processed_bytes < cpg->p.hw_nbytes) {
@@ -336,6 +340,7 @@ static void mv_enqueue_new_req(struct ablkcipher_request *req)
p->hw_nbytes = req->nbytes;
p->complete = mv_crypto_algo_completion;
p->process = mv_process_current_q;
+ p->copy_back = 1;
num_sgs = count_sgs(req->src, req->nbytes);
sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);
From 0c5c6c4bae8fe9ae3d86b44c332eb1267df1ec99 Mon Sep 17 00:00:00 2001
From: Uri Simchoni <uri@jdland.co.il>
Date: Thu, 8 Apr 2010 19:33:26 +0300
Subject: [PATCH] crypto: mv_cesa - Support processing of data from previous
requests
Support processing of data from previous requests (as in hashing
update/final requests).
Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/mv_cesa.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 49a2206..d0fb10e 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -184,10 +184,11 @@ static void copy_src_to_buf(struct req_progress *p, char *dbuf, int len)
static void setup_data_in(void)
{
struct req_progress *p = &cpg->p;
- p->crypt_len =
+ int data_in_sram =
min(p->hw_nbytes - p->hw_processed_bytes, cpg->max_req_size);
- copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START,
- p->crypt_len);
+ copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START + p->crypt_len,
+ data_in_sram - p->crypt_len);
+ p->crypt_len = data_in_sram;
}
static void mv_process_current_q(int first_block)
@@ -298,6 +299,7 @@ static void dequeue_complete_req(void)
} while (need_copy_len > 0);
}
+ cpg->p.crypt_len = 0;
BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE);
if (cpg->p.hw_processed_bytes < cpg->p.hw_nbytes) {
--
1.7.6.5