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crypto: hisilicon - add a lock for the qp send operation

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Apply for a lock before the qp send operation to ensure no
resource race in multi-concurrency situations.

This modification has almost no impact on performance.

Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Chenghai Huang
2024-08-31 17:50:08 +08:00
committed by Herbert Xu
parent f386dc64e1
commit 5fdb4b345c
2 changed files with 5 additions and 0 deletions
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2
drivers/crypto/hisilicon/hpre/hpre_crypto.c
View File

@@ -575,7 +575,9 @@ static int hpre_send(struct hpre_ctx *ctx, struct hpre_sqe *msg)
do {
atomic64_inc(&dfx[HPRE_SEND_CNT].value);
spin_lock_bh(&ctx->req_lock);
ret = hisi_qp_send(ctx->qp, msg);
spin_unlock_bh(&ctx->req_lock);
if (ret != -EBUSY)
break;
atomic64_inc(&dfx[HPRE_SEND_BUSY_CNT].value);

3
drivers/crypto/hisilicon/zip/zip_crypto.c
View File

@@ -213,6 +213,7 @@ static int hisi_zip_do_work(struct hisi_zip_qp_ctx *qp_ctx,
{
struct hisi_acc_sgl_pool *pool = qp_ctx->sgl_pool;
struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx;
struct hisi_zip_req_q *req_q = &qp_ctx->req_q;
struct acomp_req *a_req = req->req;
struct hisi_qp *qp = qp_ctx->qp;
struct device *dev = &qp->qm->pdev->dev;
@@ -244,7 +245,9 @@ static int hisi_zip_do_work(struct hisi_zip_qp_ctx *qp_ctx,
/* send command to start a task */
atomic64_inc(&dfx->send_cnt);
spin_lock_bh(&req_q->req_lock);
ret = hisi_qp_send(qp, &zip_sqe);
spin_unlock_bh(&req_q->req_lock);
if (unlikely(ret < 0)) {
atomic64_inc(&dfx->send_busy_cnt);
ret = -EAGAIN;