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crypto: talitos - fill in talitos descriptor iaw SEC1 or SEC2+ 

talitos descriptor is slightly different for SEC1 and SEC2+, so
lets the helper function that fills the descriptor take into account
the type of SEC.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
LEROY Christophe 2015-04-17 16:32:07 +02:00 committed by Herbert Xu
parent 2159088849
commit 922f9dc8d3
1 changed files with 67 additions and 38 deletions
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105
drivers/crypto/talitos.c
View File

@ -55,25 +55,38 @@
#include "talitos.h"
static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr)
static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr,
bool is_sec1)
{
ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr));
ptr->eptr = upper_32_bits(dma_addr);
if (!is_sec1)
ptr->eptr = upper_32_bits(dma_addr);
}
static void to_talitos_ptr_len(struct talitos_ptr *ptr, unsigned short len)
static void to_talitos_ptr_len(struct talitos_ptr *ptr, unsigned short len,
bool is_sec1)
{
ptr->len = cpu_to_be16(len);
if (is_sec1) {
ptr->res = 0;
ptr->len1 = cpu_to_be16(len);
} else {
ptr->len = cpu_to_be16(len);
}
}
static unsigned short from_talitos_ptr_len(struct talitos_ptr *ptr)
static unsigned short from_talitos_ptr_len(struct talitos_ptr *ptr,
bool is_sec1)
{
return be16_to_cpu(ptr->len);
if (is_sec1)
return be16_to_cpu(ptr->len1);
else
return be16_to_cpu(ptr->len);
}
static void to_talitos_ptr_extent_clear(struct talitos_ptr *ptr)
static void to_talitos_ptr_extent_clear(struct talitos_ptr *ptr, bool is_sec1)
{
ptr->j_extent = 0;
if (!is_sec1)
ptr->j_extent = 0;
}
/*
@ -85,10 +98,12 @@ static void map_single_talitos_ptr(struct device *dev,
enum dma_data_direction dir)
{
dma_addr_t dma_addr = dma_map_single(dev, data, len, dir);
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
to_talitos_ptr_len(ptr, len);
to_talitos_ptr(ptr, dma_addr);
to_talitos_ptr_extent_clear(ptr);
to_talitos_ptr_len(ptr, len, is_sec1);
to_talitos_ptr(ptr, dma_addr, is_sec1);
to_talitos_ptr_extent_clear(ptr, is_sec1);
}
/*
@ -98,8 +113,11 @@ static void unmap_single_talitos_ptr(struct device *dev,
struct talitos_ptr *ptr,
enum dma_data_direction dir)
{
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
dma_unmap_single(dev, be32_to_cpu(ptr->ptr),
from_talitos_ptr_len(ptr), dir);
from_talitos_ptr_len(ptr, is_sec1), dir);
}
static int reset_channel(struct device *dev, int ch)
@ -922,7 +940,7 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
int n_sg = sg_count;
while (n_sg--) {
to_talitos_ptr(link_tbl_ptr, sg_dma_address(sg));
to_talitos_ptr(link_tbl_ptr, sg_dma_address(sg), 0);
link_tbl_ptr->len = cpu_to_be16(sg_dma_len(sg));
link_tbl_ptr->j_extent = 0;
link_tbl_ptr++;
@ -976,7 +994,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off *
sizeof(struct talitos_ptr));
sizeof(struct talitos_ptr), 0);
desc->ptr[1].j_extent = DESC_PTR_LNKTBL_JUMP;
/* assoc_nents - 1 entries for assoc, 1 for IV */
@ -987,7 +1005,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
tbl_ptr += sg_count - 1;
tbl_ptr->j_extent = 0;
tbl_ptr++;
to_talitos_ptr(tbl_ptr, edesc->iv_dma);
to_talitos_ptr(tbl_ptr, edesc->iv_dma, 0);
tbl_ptr->len = cpu_to_be16(ivsize);
tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
@ -996,14 +1014,14 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
} else {
if (areq->assoclen)
to_talitos_ptr(&desc->ptr[1],
sg_dma_address(areq->assoc));
sg_dma_address(areq->assoc), 0);
else
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma);
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, 0);
desc->ptr[1].j_extent = 0;
}
/* cipher iv */
to_talitos_ptr(&desc->ptr[2], edesc->iv_dma);
to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, 0);
desc->ptr[2].len = cpu_to_be16(ivsize);
desc->ptr[2].j_extent = 0;
/* Sync needed for the aead_givencrypt case */
@ -1029,7 +1047,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
edesc->src_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src));
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
} else {
sg_link_tbl_len = cryptlen;
@ -1040,14 +1058,14 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
&edesc->link_tbl[0]);
if (sg_count > 1) {
desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl);
to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl, 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(&desc->ptr[4],
sg_dma_address(areq->src));
sg_dma_address(areq->src), 0);
}
}
@ -1061,13 +1079,13 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
DMA_FROM_DEVICE, edesc->dst_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst));
to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
} else {
int tbl_off = edesc->src_nents + 1;
struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl +
tbl_off * sizeof(struct talitos_ptr));
tbl_off * sizeof(struct talitos_ptr), 0);
sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen,
tbl_ptr);
@ -1082,7 +1100,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl +
(tbl_off + edesc->dst_nents + 1 +
edesc->assoc_nents) *
sizeof(struct talitos_ptr));
sizeof(struct talitos_ptr), 0);
desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP;
dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
edesc->dma_len, DMA_BIDIRECTIONAL);
@ -1384,27 +1402,29 @@ int map_sg_in_talitos_ptr(struct device *dev, struct scatterlist *src,
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);
to_talitos_ptr_extent_clear(ptr);
to_talitos_ptr_len(ptr, len, is_sec1);
to_talitos_ptr_extent_clear(ptr, is_sec1);
sg_count = talitos_map_sg(dev, src, edesc->src_nents ? : 1, dir,
edesc->src_chained);
if (sg_count == 1) {
to_talitos_ptr(ptr, sg_dma_address(src));
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);
to_talitos_ptr(ptr, edesc->dma_link_tbl, 0);
ptr->j_extent |= DESC_PTR_LNKTBL_JUMP;
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));
to_talitos_ptr(ptr, sg_dma_address(src), is_sec1);
}
}
return sg_count;
@ -1415,22 +1435,25 @@ void map_sg_out_talitos_ptr(struct device *dev, struct scatterlist *dst,
enum dma_data_direction dir,
struct talitos_ptr *ptr, int sg_count)
{
to_talitos_ptr_len(ptr, len);
to_talitos_ptr_extent_clear(ptr);
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
to_talitos_ptr_len(ptr, len, is_sec1);
to_talitos_ptr_extent_clear(ptr, is_sec1);
if (dir != DMA_NONE)
sg_count = talitos_map_sg(dev, dst, edesc->dst_nents ? : 1,
dir, edesc->dst_chained);
if (sg_count == 1) {
to_talitos_ptr(ptr, sg_dma_address(dst));
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));
sizeof(struct talitos_ptr), 0);
ptr->j_extent |= DESC_PTR_LNKTBL_JUMP;
sg_count = sg_to_link_tbl(dst, sg_count, len, link_tbl_ptr);
dma_sync_single_for_device(dev, edesc->dma_link_tbl,
@ -1451,14 +1474,16 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
unsigned int cryptlen = areq->nbytes;
unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
int sg_count, ret;
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
/* first DWORD empty */
desc->ptr[0] = zero_entry;
/* cipher iv */
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma);
to_talitos_ptr_len(&desc->ptr[1], ivsize);
to_talitos_ptr_extent_clear(&desc->ptr[1]);
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, is_sec1);
to_talitos_ptr_len(&desc->ptr[1], ivsize, is_sec1);
to_talitos_ptr_extent_clear(&desc->ptr[1], is_sec1);
/* cipher key */
map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,
@ -1543,17 +1568,19 @@ static void common_nonsnoop_hash_unmap(struct device *dev,
struct ahash_request *areq)
{
struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
unmap_sg_talitos_ptr(dev, req_ctx->psrc, NULL, 0, edesc);
/* When using hashctx-in, must unmap it. */
if (from_talitos_ptr_len(&edesc->desc.ptr[1]))
if (from_talitos_ptr_len(&edesc->desc.ptr[1], is_sec1))
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1],
DMA_TO_DEVICE);
if (from_talitos_ptr_len(&edesc->desc.ptr[2]))
if (from_talitos_ptr_len(&edesc->desc.ptr[2], is_sec1))
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2],
DMA_TO_DEVICE);
@ -1596,6 +1623,8 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
struct device *dev = ctx->dev;
struct talitos_desc *desc = &edesc->desc;
int ret;
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
/* first DWORD empty */
desc->ptr[0] = zero_entry;