[PATCH 6/8] crypto: hisilicon/qm - split 'qm_qp_ctx_cfg' into smaller pieces

From: Weili Qian
Date: Sat Oct 31 2020 - 05:08:52 EST


'qm_qp_ctx_cfg' initializes configuration of SQ and CQ,
split it into two pieces to improve code readability.

Signed-off-by: Weili Qian <qianweili@xxxxxxxxxx>
Reviewed-by: Zhou Wang <wangzhou1@xxxxxxxxxxxxx>
---
drivers/crypto/hisilicon/qm.c | 36 ++++++++++++++++++++++++++++--------
1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 25c5414..4c5cc60 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -1735,19 +1735,15 @@ void hisi_qm_release_qp(struct hisi_qp *qp)
}
EXPORT_SYMBOL_GPL(hisi_qm_release_qp);

-static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
+static int qm_sq_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
{
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
enum qm_hw_ver ver = qm->ver;
struct qm_sqc *sqc;
- struct qm_cqc *cqc;
dma_addr_t sqc_dma;
- dma_addr_t cqc_dma;
int ret;

- qm_init_qp_status(qp);
-
sqc = kzalloc(sizeof(struct qm_sqc), GFP_KERNEL);
if (!sqc)
return -ENOMEM;
@@ -1772,12 +1768,23 @@ static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
ret = qm_mb(qm, QM_MB_CMD_SQC, sqc_dma, qp_id, 0);
dma_unmap_single(dev, sqc_dma, sizeof(struct qm_sqc), DMA_TO_DEVICE);
kfree(sqc);
- if (ret)
- return ret;
+
+ return ret;
+}
+
+static int qm_cq_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
+{
+ struct hisi_qm *qm = qp->qm;
+ struct device *dev = &qm->pdev->dev;
+ enum qm_hw_ver ver = qm->ver;
+ struct qm_cqc *cqc;
+ dma_addr_t cqc_dma;
+ int ret;

cqc = kzalloc(sizeof(struct qm_cqc), GFP_KERNEL);
if (!cqc)
return -ENOMEM;
+
cqc_dma = dma_map_single(dev, cqc, sizeof(struct qm_cqc),
DMA_TO_DEVICE);
if (dma_mapping_error(dev, cqc_dma)) {
@@ -1792,7 +1799,7 @@ static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
cqc->w8 = cpu_to_le16(QM_Q_DEPTH - 1);
} else {
cqc->dw3 = cpu_to_le32(QM_MK_CQC_DW3_V2(QM_QC_CQE_SIZE));
- cqc->w8 = 0;
+ cqc->w8 = 0; /* rand_qc */
}
cqc->dw6 = cpu_to_le32(1 << QM_CQ_PHASE_SHIFT | 1 << QM_CQ_FLAG_SHIFT);

@@ -1803,6 +1810,19 @@ static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
return ret;
}

+static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
+{
+ int ret;
+
+ qm_init_qp_status(qp);
+
+ ret = qm_sq_ctx_cfg(qp, qp_id, pasid);
+ if (ret)
+ return ret;
+
+ return qm_cq_ctx_cfg(qp, qp_id, pasid);
+}
+
static int qm_start_qp_nolock(struct hisi_qp *qp, unsigned long arg)
{
struct hisi_qm *qm = qp->qm;
--
2.8.1