From: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
To: herbert@gondor.apana.org.au
Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com,
Vlad Dronov <vdronov@redhat.com>,
Giovanni Cabiddu <giovanni.cabiddu@intel.com>,
Wojciech Ziemba <wojciech.ziemba@intel.com>,
Adam Guerin <adam.guerin@intel.com>
Subject: [PATCH v3 05/12] crypto: qat - extend buffer list interface
Date: Mon, 28 Nov 2022 12:21:16 +0000 [thread overview]
Message-ID: <20221128122123.130459-6-giovanni.cabiddu@intel.com> (raw)
In-Reply-To: <20221128122123.130459-1-giovanni.cabiddu@intel.com>
The compression service requires an additional pre-allocated buffer for
each destination scatter list.
Extend the function qat_alg_sgl_to_bufl() to take an additional
structure that contains the dma address and the size of the extra
buffer which will be appended in the destination FW SGL.
The logic that unmaps buffers in qat_alg_free_bufl() has been changed to
start unmapping from buffer 0 instead of skipping the initial buffers
num_buff - num_mapped_bufs as that functionality was not used in the
code.
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Reviewed-by: Adam Guerin <adam.guerin@intel.com>
---
drivers/crypto/qat/qat_common/qat_algs.c | 8 ++--
drivers/crypto/qat/qat_common/qat_bl.c | 58 ++++++++++++++++++------
drivers/crypto/qat/qat_common/qat_bl.h | 6 +++
3 files changed, 54 insertions(+), 18 deletions(-)
diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c
index dfa65e42db78..b4b9f0aa59b9 100644
--- a/drivers/crypto/qat/qat_common/qat_algs.c
+++ b/drivers/crypto/qat/qat_common/qat_algs.c
@@ -800,7 +800,7 @@ static int qat_alg_aead_dec(struct aead_request *areq)
return -EINVAL;
ret = qat_bl_sgl_to_bufl(ctx->inst->accel_dev, areq->src, areq->dst,
- &qat_req->buf, f);
+ &qat_req->buf, NULL, f);
if (unlikely(ret))
return ret;
@@ -844,7 +844,7 @@ static int qat_alg_aead_enc(struct aead_request *areq)
return -EINVAL;
ret = qat_bl_sgl_to_bufl(ctx->inst->accel_dev, areq->src, areq->dst,
- &qat_req->buf, f);
+ &qat_req->buf, NULL, f);
if (unlikely(ret))
return ret;
@@ -1030,7 +1030,7 @@ static int qat_alg_skcipher_encrypt(struct skcipher_request *req)
return 0;
ret = qat_bl_sgl_to_bufl(ctx->inst->accel_dev, req->src, req->dst,
- &qat_req->buf, f);
+ &qat_req->buf, NULL, f);
if (unlikely(ret))
return ret;
@@ -1097,7 +1097,7 @@ static int qat_alg_skcipher_decrypt(struct skcipher_request *req)
return 0;
ret = qat_bl_sgl_to_bufl(ctx->inst->accel_dev, req->src, req->dst,
- &qat_req->buf, f);
+ &qat_req->buf, NULL, f);
if (unlikely(ret))
return ret;
diff --git a/drivers/crypto/qat/qat_common/qat_bl.c b/drivers/crypto/qat/qat_common/qat_bl.c
index c32b12d386f0..221a4eb610a3 100644
--- a/drivers/crypto/qat/qat_common/qat_bl.c
+++ b/drivers/crypto/qat/qat_common/qat_bl.c
@@ -35,10 +35,7 @@ void qat_bl_free_bufl(struct adf_accel_dev *accel_dev,
kfree(bl);
if (blp != blpout) {
- /* If out of place operation dma unmap only data */
- int bufless = blout->num_bufs - blout->num_mapped_bufs;
-
- for (i = bufless; i < blout->num_bufs; i++) {
+ for (i = 0; i < blout->num_mapped_bufs; i++) {
dma_unmap_single(dev, blout->bufers[i].addr,
blout->bufers[i].len,
DMA_FROM_DEVICE);
@@ -50,11 +47,13 @@ void qat_bl_free_bufl(struct adf_accel_dev *accel_dev,
}
}
-int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
- struct scatterlist *sgl,
- struct scatterlist *sglout,
- struct qat_request_buffs *buf,
- gfp_t flags)
+static int __qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
+ struct scatterlist *sgl,
+ struct scatterlist *sglout,
+ struct qat_request_buffs *buf,
+ dma_addr_t extra_dst_buff,
+ size_t sz_extra_dst_buff,
+ gfp_t flags)
{
struct device *dev = &GET_DEV(accel_dev);
int i, sg_nctr = 0;
@@ -86,7 +85,7 @@ int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
bufl_dma_dir = sgl != sglout ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
- for_each_sg(sgl, sg, n, i)
+ for (i = 0; i < n; i++)
bufl->bufers[i].addr = DMA_MAPPING_ERROR;
for_each_sg(sgl, sg, n, i) {
@@ -113,8 +112,10 @@ int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
/* Handle out of place operation */
if (sgl != sglout) {
struct qat_alg_buf *bufers;
+ int extra_buff = extra_dst_buff ? 1 : 0;
+ int n_sglout = sg_nents(sglout);
- n = sg_nents(sglout);
+ n = n_sglout + extra_buff;
sz_out = struct_size(buflout, bufers, n);
sg_nctr = 0;
@@ -129,10 +130,10 @@ int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
}
bufers = buflout->bufers;
- for_each_sg(sglout, sg, n, i)
+ for (i = 0; i < n; i++)
bufers[i].addr = DMA_MAPPING_ERROR;
- for_each_sg(sglout, sg, n, i) {
+ for_each_sg(sglout, sg, n_sglout, i) {
int y = sg_nctr;
if (!sg->length)
@@ -146,7 +147,13 @@ int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
bufers[y].len = sg->length;
sg_nctr++;
}
+ if (extra_buff) {
+ bufers[sg_nctr].addr = extra_dst_buff;
+ bufers[sg_nctr].len = sz_extra_dst_buff;
+ }
+
buflout->num_bufs = sg_nctr;
+ buflout->num_bufs += extra_buff;
buflout->num_mapped_bufs = sg_nctr;
bloutp = dma_map_single(dev, buflout, sz_out, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, bloutp)))
@@ -166,11 +173,14 @@ int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
dma_unmap_single(dev, bloutp, sz_out, DMA_TO_DEVICE);
n = sg_nents(sglout);
- for (i = 0; i < n; i++)
+ for (i = 0; i < n; i++) {
+ if (buflout->bufers[i].addr == extra_dst_buff)
+ break;
if (!dma_mapping_error(dev, buflout->bufers[i].addr))
dma_unmap_single(dev, buflout->bufers[i].addr,
buflout->bufers[i].len,
DMA_FROM_DEVICE);
+ }
if (!buf->sgl_dst_valid)
kfree(buflout);
@@ -192,3 +202,23 @@ int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
dev_err(dev, "Failed to map buf for dma\n");
return -ENOMEM;
}
+
+int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
+ struct scatterlist *sgl,
+ struct scatterlist *sglout,
+ struct qat_request_buffs *buf,
+ struct qat_sgl_to_bufl_params *params,
+ gfp_t flags)
+{
+ dma_addr_t extra_dst_buff = 0;
+ size_t sz_extra_dst_buff = 0;
+
+ if (params) {
+ extra_dst_buff = params->extra_dst_buff;
+ sz_extra_dst_buff = params->sz_extra_dst_buff;
+ }
+
+ return __qat_bl_sgl_to_bufl(accel_dev, sgl, sglout, buf,
+ extra_dst_buff, sz_extra_dst_buff,
+ flags);
+}
diff --git a/drivers/crypto/qat/qat_common/qat_bl.h b/drivers/crypto/qat/qat_common/qat_bl.h
index 1c534c57a36b..0c174fee9e64 100644
--- a/drivers/crypto/qat/qat_common/qat_bl.h
+++ b/drivers/crypto/qat/qat_common/qat_bl.h
@@ -38,12 +38,18 @@ struct qat_request_buffs {
struct qat_alg_fixed_buf_list sgl_dst;
};
+struct qat_sgl_to_bufl_params {
+ dma_addr_t extra_dst_buff;
+ size_t sz_extra_dst_buff;
+};
+
void qat_bl_free_bufl(struct adf_accel_dev *accel_dev,
struct qat_request_buffs *buf);
int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
struct scatterlist *sgl,
struct scatterlist *sglout,
struct qat_request_buffs *buf,
+ struct qat_sgl_to_bufl_params *params,
gfp_t flags);
#endif
--
2.38.1
next prev parent reply other threads:[~2022-11-28 12:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-28 12:21 [PATCH v3 00/12] crypto: qat - enable compression deflate algorithm Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 01/12] crypto: qat - relocate bufferlist logic Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 02/12] crypto: qat - rename bufferlist functions Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 03/12] crypto: qat - change bufferlist logic interface Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 04/12] crypto: qat - generalize crypto request buffers Giovanni Cabiddu
2022-11-28 12:21 ` Giovanni Cabiddu [this message]
2022-11-28 12:21 ` [PATCH v3 06/12] crypto: qat - relocate backlog related structures Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 07/12] crypto: qat - relocate qat_algs_alloc_flags() Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 08/12] crypto: qat - rename and relocate GEN2 config function Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 09/12] crypto: qat - expose deflate through acomp api for QAT GEN2 Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 10/12] crypto: qat - enable deflate for QAT GEN4 Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 11/12] crypto: acomp - define max size for destination Giovanni Cabiddu
2022-11-28 12:21 ` [PATCH v3 12/12] crypto: qat - add resubmit logic for decompression Giovanni Cabiddu
2022-12-09 11:06 ` [PATCH v3 00/12] crypto: qat - enable compression deflate algorithm Herbert Xu
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