[PATCH v2 2/7] crypto: talitos - move mapping helpers before IPSEC functions
Christophe Leroy
christophe.leroy at c-s.fr
Mon Jun 6 21:20:36 AEST 2016
In order to be able to use the mapping/unmapping helpers for IPSEC
it needs to be move upper in the file
Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>
---
drivers/crypto/talitos.c | 244 +++++++++++++++++++++++------------------------
1 file changed, 122 insertions(+), 122 deletions(-)
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index a92aa37..beb369e 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -926,6 +926,33 @@ static void talitos_sg_unmap(struct device *dev,
dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL);
}
+static void unmap_sg_talitos_ptr(struct device *dev, struct scatterlist *src,
+ struct scatterlist *dst, unsigned int len,
+ struct talitos_edesc *edesc)
+{
+ struct talitos_private *priv = dev_get_drvdata(dev);
+ bool is_sec1 = has_ftr_sec1(priv);
+
+ if (is_sec1) {
+ if (!edesc->src_nents) {
+ dma_unmap_sg(dev, src, 1,
+ dst != src ? DMA_TO_DEVICE
+ : DMA_BIDIRECTIONAL);
+ }
+ if (dst && edesc->dst_nents) {
+ dma_sync_single_for_device(dev,
+ edesc->dma_link_tbl + len,
+ len, DMA_FROM_DEVICE);
+ sg_copy_from_buffer(dst, edesc->dst_nents ? : 1,
+ edesc->buf + len, len);
+ } else if (dst && dst != src) {
+ dma_unmap_sg(dev, dst, 1, DMA_FROM_DEVICE);
+ }
+ } else {
+ talitos_sg_unmap(dev, edesc, src, dst);
+ }
+}
+
static void ipsec_esp_unmap(struct device *dev,
struct talitos_edesc *edesc,
struct aead_request *areq)
@@ -1083,6 +1110,101 @@ static inline int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
link_tbl_ptr);
}
+int map_sg_in_talitos_ptr(struct device *dev, struct scatterlist *src,
+ unsigned int len, struct talitos_edesc *edesc,
+ enum dma_data_direction dir, struct talitos_ptr *ptr)
+{
+ int sg_count;
+ struct talitos_private *priv = dev_get_drvdata(dev);
+ bool is_sec1 = has_ftr_sec1(priv);
+
+ to_talitos_ptr_len(ptr, len, is_sec1);
+
+ if (is_sec1) {
+ sg_count = edesc->src_nents ? : 1;
+
+ if (sg_count == 1) {
+ dma_map_sg(dev, src, 1, dir);
+ to_talitos_ptr(ptr, sg_dma_address(src), is_sec1);
+ } else {
+ sg_copy_to_buffer(src, sg_count, edesc->buf, len);
+ to_talitos_ptr(ptr, edesc->dma_link_tbl, is_sec1);
+ dma_sync_single_for_device(dev, edesc->dma_link_tbl,
+ len, DMA_TO_DEVICE);
+ }
+ } else {
+ to_talitos_ptr_ext_set(ptr, 0, is_sec1);
+
+ sg_count = dma_map_sg(dev, src, edesc->src_nents ? : 1, dir);
+
+ if (sg_count == 1) {
+ to_talitos_ptr(ptr, sg_dma_address(src), is_sec1);
+ } else {
+ sg_count = sg_to_link_tbl(src, sg_count, len,
+ &edesc->link_tbl[0]);
+ if (sg_count > 1) {
+ to_talitos_ptr(ptr, edesc->dma_link_tbl, 0);
+ to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP,
+ 0);
+ dma_sync_single_for_device(dev,
+ edesc->dma_link_tbl,
+ edesc->dma_len,
+ DMA_BIDIRECTIONAL);
+ } else {
+ /* Only one segment now, so no link tbl needed*/
+ to_talitos_ptr(ptr, sg_dma_address(src),
+ is_sec1);
+ }
+ }
+ }
+ return sg_count;
+}
+
+void map_sg_out_talitos_ptr(struct device *dev, struct scatterlist *dst,
+ unsigned int len, struct talitos_edesc *edesc,
+ enum dma_data_direction dir,
+ struct talitos_ptr *ptr, int sg_count)
+{
+ struct talitos_private *priv = dev_get_drvdata(dev);
+ bool is_sec1 = has_ftr_sec1(priv);
+
+ if (dir != DMA_NONE)
+ sg_count = dma_map_sg(dev, dst, edesc->dst_nents ? : 1, dir);
+
+ to_talitos_ptr_len(ptr, len, is_sec1);
+
+ if (is_sec1) {
+ if (sg_count == 1) {
+ if (dir != DMA_NONE)
+ dma_map_sg(dev, dst, 1, dir);
+ to_talitos_ptr(ptr, sg_dma_address(dst), is_sec1);
+ } else {
+ to_talitos_ptr(ptr, edesc->dma_link_tbl + len, is_sec1);
+ dma_sync_single_for_device(dev,
+ edesc->dma_link_tbl + len,
+ len, DMA_FROM_DEVICE);
+ }
+ } else {
+ to_talitos_ptr_ext_set(ptr, 0, is_sec1);
+
+ if (sg_count == 1) {
+ to_talitos_ptr(ptr, sg_dma_address(dst), is_sec1);
+ } else {
+ struct talitos_ptr *link_tbl_ptr =
+ &edesc->link_tbl[edesc->src_nents + 1];
+
+ to_talitos_ptr(ptr, edesc->dma_link_tbl +
+ (edesc->src_nents + 1) *
+ sizeof(struct talitos_ptr), 0);
+ to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP, 0);
+ sg_to_link_tbl(dst, sg_count, len, link_tbl_ptr);
+ dma_sync_single_for_device(dev, edesc->dma_link_tbl,
+ edesc->dma_len,
+ DMA_BIDIRECTIONAL);
+ }
+ }
+}
+
/*
* fill in and submit ipsec_esp descriptor
*/
@@ -1420,33 +1542,6 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
return 0;
}
-static void unmap_sg_talitos_ptr(struct device *dev, struct scatterlist *src,
- struct scatterlist *dst, unsigned int len,
- struct talitos_edesc *edesc)
-{
- struct talitos_private *priv = dev_get_drvdata(dev);
- bool is_sec1 = has_ftr_sec1(priv);
-
- if (is_sec1) {
- if (!edesc->src_nents) {
- dma_unmap_sg(dev, src, 1,
- dst != src ? DMA_TO_DEVICE
- : DMA_BIDIRECTIONAL);
- }
- if (dst && edesc->dst_nents) {
- dma_sync_single_for_device(dev,
- edesc->dma_link_tbl + len,
- len, DMA_FROM_DEVICE);
- sg_copy_from_buffer(dst, edesc->dst_nents ? : 1,
- edesc->buf + len, len);
- } else if (dst && dst != src) {
- dma_unmap_sg(dev, dst, 1, DMA_FROM_DEVICE);
- }
- } else {
- talitos_sg_unmap(dev, edesc, src, dst);
- }
-}
-
static void common_nonsnoop_unmap(struct device *dev,
struct talitos_edesc *edesc,
struct ablkcipher_request *areq)
@@ -1478,101 +1573,6 @@ static void ablkcipher_done(struct device *dev,
areq->base.complete(&areq->base, err);
}
-int map_sg_in_talitos_ptr(struct device *dev, struct scatterlist *src,
- unsigned int len, struct talitos_edesc *edesc,
- enum dma_data_direction dir, struct talitos_ptr *ptr)
-{
- int sg_count;
- struct talitos_private *priv = dev_get_drvdata(dev);
- bool is_sec1 = has_ftr_sec1(priv);
-
- to_talitos_ptr_len(ptr, len, is_sec1);
-
- if (is_sec1) {
- sg_count = edesc->src_nents ? : 1;
-
- if (sg_count == 1) {
- dma_map_sg(dev, src, 1, dir);
- to_talitos_ptr(ptr, sg_dma_address(src), is_sec1);
- } else {
- sg_copy_to_buffer(src, sg_count, edesc->buf, len);
- to_talitos_ptr(ptr, edesc->dma_link_tbl, is_sec1);
- dma_sync_single_for_device(dev, edesc->dma_link_tbl,
- len, DMA_TO_DEVICE);
- }
- } else {
- to_talitos_ptr_ext_set(ptr, 0, is_sec1);
-
- sg_count = dma_map_sg(dev, src, edesc->src_nents ? : 1, dir);
-
- if (sg_count == 1) {
- to_talitos_ptr(ptr, sg_dma_address(src), is_sec1);
- } else {
- sg_count = sg_to_link_tbl(src, sg_count, len,
- &edesc->link_tbl[0]);
- if (sg_count > 1) {
- to_talitos_ptr(ptr, edesc->dma_link_tbl, 0);
- to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP,
- 0);
- dma_sync_single_for_device(dev,
- edesc->dma_link_tbl,
- edesc->dma_len,
- DMA_BIDIRECTIONAL);
- } else {
- /* Only one segment now, so no link tbl needed*/
- to_talitos_ptr(ptr, sg_dma_address(src),
- is_sec1);
- }
- }
- }
- return sg_count;
-}
-
-void map_sg_out_talitos_ptr(struct device *dev, struct scatterlist *dst,
- unsigned int len, struct talitos_edesc *edesc,
- enum dma_data_direction dir,
- struct talitos_ptr *ptr, int sg_count)
-{
- struct talitos_private *priv = dev_get_drvdata(dev);
- bool is_sec1 = has_ftr_sec1(priv);
-
- if (dir != DMA_NONE)
- sg_count = dma_map_sg(dev, dst, edesc->dst_nents ? : 1, dir);
-
- to_talitos_ptr_len(ptr, len, is_sec1);
-
- if (is_sec1) {
- if (sg_count == 1) {
- if (dir != DMA_NONE)
- dma_map_sg(dev, dst, 1, dir);
- to_talitos_ptr(ptr, sg_dma_address(dst), is_sec1);
- } else {
- to_talitos_ptr(ptr, edesc->dma_link_tbl + len, is_sec1);
- dma_sync_single_for_device(dev,
- edesc->dma_link_tbl + len,
- len, DMA_FROM_DEVICE);
- }
- } else {
- to_talitos_ptr_ext_set(ptr, 0, is_sec1);
-
- if (sg_count == 1) {
- to_talitos_ptr(ptr, sg_dma_address(dst), is_sec1);
- } else {
- struct talitos_ptr *link_tbl_ptr =
- &edesc->link_tbl[edesc->src_nents + 1];
-
- to_talitos_ptr(ptr, edesc->dma_link_tbl +
- (edesc->src_nents + 1) *
- sizeof(struct talitos_ptr), 0);
- to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP, 0);
- sg_to_link_tbl(dst, sg_count, len, link_tbl_ptr);
- dma_sync_single_for_device(dev, edesc->dma_link_tbl,
- edesc->dma_len,
- DMA_BIDIRECTIONAL);
- }
- }
-}
-
static int common_nonsnoop(struct talitos_edesc *edesc,
struct ablkcipher_request *areq,
void (*callback) (struct device *dev,
--
2.1.0
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