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path: root/drivers/crypto/talitos.c
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Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index cd8a37e60259..1e799886c57d 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1247,14 +1247,15 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
dma_map_sg(dev, areq->dst, sg_count, DMA_FROM_DEVICE);
}
- sg_count = talitos_sg_map(dev, areq->dst, cryptlen, edesc,
- &desc->ptr[5], sg_count, areq->assoclen,
- tbl_off);
+ ret = talitos_sg_map(dev, areq->dst, cryptlen, edesc, &desc->ptr[5],
+ sg_count, areq->assoclen, tbl_off);
if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
to_talitos_ptr_ext_or(&desc->ptr[5], authsize, is_sec1);
- if (sg_count > 1) {
+ /* ICV data */
+ if (ret > 1) {
+ tbl_off += ret;
edesc->icv_ool = true;
sync_needed = true;
@@ -1264,9 +1265,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
sizeof(struct talitos_ptr) + authsize;
/* Add an entry to the link table for ICV data */
- tbl_ptr += sg_count - 1;
- to_talitos_ptr_ext_set(tbl_ptr, 0, is_sec1);
- tbl_ptr++;
+ to_talitos_ptr_ext_set(tbl_ptr - 1, 0, is_sec1);
to_talitos_ptr_ext_set(tbl_ptr, DESC_PTR_LNKTBL_RETURN,
is_sec1);
to_talitos_ptr_len(tbl_ptr, authsize, is_sec1);
@@ -1274,18 +1273,33 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
/* icv data follows link tables */
to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl + offset,
is_sec1);
+ } else {
+ dma_addr_t addr = edesc->dma_link_tbl;
+
+ if (is_sec1)
+ addr += areq->assoclen + cryptlen;
+ else
+ addr += sizeof(struct talitos_ptr) * tbl_off;
+
+ to_talitos_ptr(&desc->ptr[6], addr, is_sec1);
+ to_talitos_ptr_len(&desc->ptr[6], authsize, is_sec1);
+ }
+ } else if (!(desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)) {
+ ret = talitos_sg_map(dev, areq->dst, authsize, edesc,
+ &desc->ptr[6], sg_count, areq->assoclen +
+ cryptlen,
+ tbl_off);
+ if (ret > 1) {
+ tbl_off += ret;
+ edesc->icv_ool = true;
+ sync_needed = true;
+ } else {
+ edesc->icv_ool = false;
}
} else {
edesc->icv_ool = false;
}
- /* ICV data */
- if (!(desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)) {
- to_talitos_ptr_len(&desc->ptr[6], authsize, is_sec1);
- to_talitos_ptr(&desc->ptr[6], edesc->dma_link_tbl +
- areq->assoclen + cryptlen, is_sec1);
- }
-
/* iv out */
if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,