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Subject: Re: [PATCH v2 4/4] crypto: hisilicon/sec - modify the SEC request
 structure
To:     <herbert@gondor.apana.org.au>
References: <1622770289-21588-1-git-send-email-yekai13@huawei.com>
 <1622770289-21588-5-git-send-email-yekai13@huawei.com>
CC:     <linux-crypto@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <wangzhou1@hisilicon.com>
From:   "yekai(A)" <yekai13@huawei.com>
Message-ID: <8cdd2476-fd6b-fc1d-45e6-fdcf90bbdf3b@huawei.com>
Date:   Mon, 7 Jun 2021 10:49:46 +0800
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On 2021/6/4 9:31, Kai Ye wrote:
> Modify the SEC request structure, combines two common parameters of the
> SEC request into one parameter.
>
> Signed-off-by: Kai Ye <yekai13@huawei.com>
> ---
>  drivers/crypto/hisilicon/sec2/sec.h        |  7 ++++--
>  drivers/crypto/hisilicon/sec2/sec_crypto.c | 34 +++++++++++++++---------------
>  2 files changed, 22 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/crypto/hisilicon/sec2/sec.h b/drivers/crypto/hisilicon/sec2/sec.h
> index 3fe7875..018415b 100644
> --- a/drivers/crypto/hisilicon/sec2/sec.h
> +++ b/drivers/crypto/hisilicon/sec2/sec.h
> @@ -21,8 +21,6 @@ struct sec_alg_res {
>
>  /* Cipher request of SEC private */
>  struct sec_cipher_req {
> -	struct hisi_acc_hw_sgl *c_in;
> -	dma_addr_t c_in_dma;
>  	struct hisi_acc_hw_sgl *c_out;
>  	dma_addr_t c_out_dma;
>  	u8 *c_ivin;
> @@ -49,6 +47,11 @@ struct sec_req {
>  	struct sec_ctx *ctx;
>  	struct sec_qp_ctx *qp_ctx;
>
> +	/**
> +	 * Common parameter of the SEC request.
> +	 */
> +	struct hisi_acc_hw_sgl *in;
> +	dma_addr_t in_dma;
>  	struct sec_cipher_req c_req;
>  	struct sec_aead_req aead_req;
>  	struct list_head backlog_head;
> diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.c b/drivers/crypto/hisilicon/sec2/sec_crypto.c
> index 75122f0..f23af61 100644
> --- a/drivers/crypto/hisilicon/sec2/sec_crypto.c
> +++ b/drivers/crypto/hisilicon/sec2/sec_crypto.c
> @@ -871,8 +871,8 @@ static int sec_cipher_pbuf_map(struct sec_ctx *ctx, struct sec_req *req,
>  		memcpy(a_req->out_mac, mac_offset, authsize);
>  	}
>
> -	c_req->c_in_dma = qp_ctx->res[req_id].pbuf_dma;
> -	c_req->c_out_dma = c_req->c_in_dma;
> +	req->in_dma = qp_ctx->res[req_id].pbuf_dma;
> +	c_req->c_out_dma = req->in_dma;
>
>  	return 0;
>  }
> @@ -950,14 +950,13 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
>  		a_req->out_mac_dma = res->out_mac_dma;
>  	}
>
> -	c_req->c_in = hisi_acc_sg_buf_map_to_hw_sgl(dev, src,
> -						    qp_ctx->c_in_pool,
> -						    req->req_id,
> -						    &c_req->c_in_dma);
> -
> -	if (IS_ERR(c_req->c_in)) {
> +	req->in = hisi_acc_sg_buf_map_to_hw_sgl(dev, src,
> +						qp_ctx->c_in_pool,
> +						req->req_id,
> +						&req->in_dma);
> +	if (IS_ERR(req->in)) {
>  		dev_err(dev, "fail to dma map input sgl buffers!\n");
> -		return PTR_ERR(c_req->c_in);
> +		return PTR_ERR(req->in);
>  	}
>
>  	if (!c_req->encrypt && ctx->alg_type == SEC_AEAD) {
> @@ -967,9 +966,10 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
>  			return ret;
>  		}
>  	}
> +
>  	if (dst == src) {
> -		c_req->c_out = c_req->c_in;
> -		c_req->c_out_dma = c_req->c_in_dma;
> +		c_req->c_out = req->in;
> +		c_req->c_out_dma = req->in_dma;
>  	} else {
>  		c_req->c_out = hisi_acc_sg_buf_map_to_hw_sgl(dev, dst,
>  							     qp_ctx->c_out_pool,
> @@ -978,7 +978,7 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
>
>  		if (IS_ERR(c_req->c_out)) {
>  			dev_err(dev, "fail to dma map output sgl buffers!\n");
> -			hisi_acc_sg_buf_unmap(dev, src, c_req->c_in);
> +			hisi_acc_sg_buf_unmap(dev, src, req->in);
>  			return PTR_ERR(c_req->c_out);
>  		}
>  	}
> @@ -996,7 +996,7 @@ static void sec_cipher_unmap(struct sec_ctx *ctx, struct sec_req *req,
>  		sec_cipher_pbuf_unmap(ctx, req, dst);
>  	} else {
>  		if (dst != src)
> -			hisi_acc_sg_buf_unmap(dev, src, c_req->c_in);
> +			hisi_acc_sg_buf_unmap(dev, src, req->in);
>
>  		hisi_acc_sg_buf_unmap(dev, dst, c_req->c_out);
>  	}
> @@ -1236,7 +1236,7 @@ static int sec_skcipher_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
>
>  	sec_sqe->type2.c_key_addr = cpu_to_le64(c_ctx->c_key_dma);
>  	sec_sqe->type2.c_ivin_addr = cpu_to_le64(c_req->c_ivin_dma);
> -	sec_sqe->type2.data_src_addr = cpu_to_le64(c_req->c_in_dma);
> +	sec_sqe->type2.data_src_addr = cpu_to_le64(req->in_dma);
>  	sec_sqe->type2.data_dst_addr = cpu_to_le64(c_req->c_out_dma);
>
>  	sec_sqe->type2.icvw_kmode |= cpu_to_le16(((u16)c_ctx->c_mode) <<
> @@ -1263,7 +1263,7 @@ static int sec_skcipher_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
>
>  	sec_sqe->sdm_addr_type |= da_type;
>  	scene = SEC_COMM_SCENE << SEC_SCENE_OFFSET;
> -	if (c_req->c_in_dma != c_req->c_out_dma)
> +	if (req->in_dma != c_req->c_out_dma)
>  		de = 0x1 << SEC_DE_OFFSET;
>
>  	sec_sqe->sds_sa_type = (de | scene | sa_type);
> @@ -1286,7 +1286,7 @@ static int sec_skcipher_bd_fill_v3(struct sec_ctx *ctx, struct sec_req *req)
>
>  	sec_sqe3->c_key_addr = cpu_to_le64(c_ctx->c_key_dma);
>  	sec_sqe3->no_scene.c_ivin_addr = cpu_to_le64(c_req->c_ivin_dma);
> -	sec_sqe3->data_src_addr = cpu_to_le64(c_req->c_in_dma);
> +	sec_sqe3->data_src_addr = cpu_to_le64(req->in_dma);
>  	sec_sqe3->data_dst_addr = cpu_to_le64(c_req->c_out_dma);
>
>  	sec_sqe3->c_mode_alg = ((u8)c_ctx->c_alg << SEC_CALG_OFFSET_V3) |
> @@ -1309,7 +1309,7 @@ static int sec_skcipher_bd_fill_v3(struct sec_ctx *ctx, struct sec_req *req)
>  	}
>
>  	bd_param |= SEC_COMM_SCENE << SEC_SCENE_OFFSET_V3;
> -	if (c_req->c_in_dma != c_req->c_out_dma)
> +	if (req->in_dma != c_req->c_out_dma)
>  		bd_param |= 0x1 << SEC_DE_OFFSET_V3;
>
>  	bd_param |= SEC_BD_TYPE3;
>

Hi Herbert
please ignore the v2 in 4/4 title.

sincere thanks
Kai