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crypto: chcr - Pass lcb bit setting to firmware

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GCM and CBC mode of operation requires Last Cipher Block.
This patch set lcb bit in WR header when required.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Harsh Jain 2017-06-15 12:43:39 +05:30 committed by Herbert Xu
parent 7c742df550
commit 2512a62414
2 changed files with 13 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/crypto/chelsio/chcr_algo.c
View File

@ -518,7 +518,8 @@ static inline void create_wreq(struct chcr_context *ctx,
void *req, struct sk_buff *skb,
int kctx_len, int hash_sz,
int is_iv,
unsigned int sc_len)
unsigned int sc_len,
unsigned int lcb)
{
struct uld_ctx *u_ctx = ULD_CTX(ctx);
int iv_loc = IV_DSGL;
@ -543,7 +544,8 @@ static inline void create_wreq(struct chcr_context *ctx,
chcr_req->wreq.cookie = cpu_to_be64((uintptr_t)req);
chcr_req->wreq.rx_chid_to_rx_q_id =
FILL_WR_RX_Q_ID(ctx->dev->rx_channel_id, qid,
is_iv ? iv_loc : IV_NOP, ctx->tx_qidx);
is_iv ? iv_loc : IV_NOP, !!lcb,
ctx->tx_qidx);
chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(ctx->dev->tx_channel_id,
qid);
@ -652,7 +654,8 @@ static struct sk_buff
write_buffer_to_skb(skb, &frags, reqctx->iv, ivsize);
write_sg_to_skb(skb, &frags, req->src, req->nbytes);
create_wreq(ctx, chcr_req, req, skb, kctx_len, 0, 1,
sizeof(struct cpl_rx_phys_dsgl) + phys_dsgl);
sizeof(struct cpl_rx_phys_dsgl) + phys_dsgl,
ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC);
reqctx->skb = skb;
skb_get(skb);
return skb;
@ -923,7 +926,7 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req,
write_sg_to_skb(skb, &frags, req->src, param->sg_len);
create_wreq(ctx, chcr_req, req, skb, kctx_len, hash_size_in_response, 0,
DUMMY_BYTES);
DUMMY_BYTES, 0);
req_ctx->skb = skb;
skb_get(skb);
return skb;
@ -1508,7 +1511,7 @@ static struct sk_buff *create_authenc_wr(struct aead_request *req,
write_buffer_to_skb(skb, &frags, req->iv, ivsize);
write_sg_to_skb(skb, &frags, src, req->cryptlen);
create_wreq(ctx, chcr_req, req, skb, kctx_len, size, 1,
sizeof(struct cpl_rx_phys_dsgl) + dst_size);
sizeof(struct cpl_rx_phys_dsgl) + dst_size, 0);
reqctx->skb = skb;
skb_get(skb);
@ -1804,7 +1807,7 @@ static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
skb_set_transport_header(skb, transhdr_len);
frags = fill_aead_req_fields(skb, req, src, ivsize, aeadctx);
create_wreq(ctx, chcr_req, req, skb, kctx_len, 0, 1,
sizeof(struct cpl_rx_phys_dsgl) + dst_size);
sizeof(struct cpl_rx_phys_dsgl) + dst_size, 0);
reqctx->skb = skb;
skb_get(skb);
return skb;
@ -1950,7 +1953,8 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
write_buffer_to_skb(skb, &frags, reqctx->iv, ivsize);
write_sg_to_skb(skb, &frags, src, req->cryptlen);
create_wreq(ctx, chcr_req, req, skb, kctx_len, size, 1,
sizeof(struct cpl_rx_phys_dsgl) + dst_size);
sizeof(struct cpl_rx_phys_dsgl) + dst_size,
reqctx->verify);
reqctx->skb = skb;
skb_get(skb);
return skb;

4
drivers/crypto/chelsio/chcr_algo.h
View File

@ -185,11 +185,11 @@
FW_CRYPTO_LOOKASIDE_WR_CCTX_LOC_V(1) | \
FW_CRYPTO_LOOKASIDE_WR_CCTX_SIZE_V((ctx_len)))
#define FILL_WR_RX_Q_ID(cid, qid, wr_iv, fid) \
#define FILL_WR_RX_Q_ID(cid, qid, wr_iv, lcb, fid) \
htonl( \
FW_CRYPTO_LOOKASIDE_WR_RX_CHID_V((cid)) | \
FW_CRYPTO_LOOKASIDE_WR_RX_Q_ID_V((qid)) | \
FW_CRYPTO_LOOKASIDE_WR_LCB_V(0) | \
FW_CRYPTO_LOOKASIDE_WR_LCB_V((lcb)) | \
FW_CRYPTO_LOOKASIDE_WR_IV_V((wr_iv)) | \
FW_CRYPTO_LOOKASIDE_WR_FQIDX_V(fid))