diff options
| author | Weili Qian <qianweili@huawei.com> | 2022-09-09 17:46:57 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-09-16 18:29:44 +0800 |
| commit | c832da79cbf9448e7ece097c3a93996b4c74a83e (patch) | |
| tree | 2cefdeadd5b6af19e29fdac3618780f96fae6005 /drivers/crypto | |
| parent | 129a9f340172b4f3857260a7a7bb9d7b3496ba50 (diff) | |
| download | lwn-c832da79cbf9448e7ece097c3a93996b4c74a83e.tar.gz lwn-c832da79cbf9448e7ece097c3a93996b4c74a83e.zip | |
crypto: hisilicon/qm - add UACCE_CMD_QM_SET_QP_INFO support
To be compatible with accelerator devices of different
versions, 'UACCE_CMD_QM_SET_QP_INFO' ioctl is added to obtain
queue information in userspace, including queue depth and buffer
description size.
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/hisilicon/qm.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index b3216ee627e5..e227a3e50600 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -3430,6 +3430,7 @@ static long hisi_qm_uacce_ioctl(struct uacce_queue *q, unsigned int cmd, unsigned long arg) { struct hisi_qp *qp = q->priv; + struct hisi_qp_info qp_info; struct hisi_qp_ctx qp_ctx; if (cmd == UACCE_CMD_QM_SET_QP_CTX) { @@ -3446,11 +3447,25 @@ static long hisi_qm_uacce_ioctl(struct uacce_queue *q, unsigned int cmd, if (copy_to_user((void __user *)arg, &qp_ctx, sizeof(struct hisi_qp_ctx))) return -EFAULT; - } else { - return -EINVAL; + + return 0; + } else if (cmd == UACCE_CMD_QM_SET_QP_INFO) { + if (copy_from_user(&qp_info, (void __user *)arg, + sizeof(struct hisi_qp_info))) + return -EFAULT; + + qp_info.sqe_size = qp->qm->sqe_size; + qp_info.sq_depth = qp->sq_depth; + qp_info.cq_depth = qp->cq_depth; + + if (copy_to_user((void __user *)arg, &qp_info, + sizeof(struct hisi_qp_info))) + return -EFAULT; + + return 0; } - return 0; + return -EINVAL; } static const struct uacce_ops uacce_qm_ops = { |