crypto/hisilicon/qm:fix qp resource leak problem

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

This patch fixes qp resource leak in wd when doing resetting and qp
allocation/free at the same time.

- When doing resetting, all started qp including qp in user space will be
  set to stop state. qp in kernel will be restarted after hardware reset.
  However, qp in user space will not, we infor user there is an error and
  let user to handle this.
- Modify to allow qp in init state to stop state.

Feature or Bugfix:Bugfix
Signed-off-by: NZhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Nxuzaibo <xuzaibo@huawei.com>
Reviewed-by: NLing Mingqiang <lingmingqiang@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/crypto/hisilicon/qm.c

@@ -304,7 +304,8 @@ static bool qm_qp_avail_state(struct hisi_qm *qm, struct hisi_qp *qp,
 			avail = true;
 		break;
 	case QP_STOP:
-		if (qm_curr == QM_START && qp_curr == QP_START)
+		if ((qm_curr == QM_START && qp_curr == QP_START) ||
+		    (qp_curr == QP_INIT))
 			avail = true;
 		break;
 	case QP_CLOSE:
@@ -1200,6 +1201,7 @@ static struct hisi_qp *hisi_qm_create_qp_nolock(struct hisi_qm *qm,
 	qp->qp_id = qp_id;
 	qp->alg_type = alg_type;
 	qp->c_flag = 1;
+	qp->is_in_kernel = true;
 	init_completion(&qp->completion);
 	atomic_set(&qp->qp_status.flags, QP_INIT);
 
@@ -1638,6 +1640,7 @@ static int hisi_qm_uacce_get_queue(struct uacce *uacce, unsigned long arg,
 	qp->uacce_q = wd_q;
 	qp->event_cb = qm_qp_event_notifier;
 	qp->pasid = arg;
+	qp->is_in_kernel = false;
 	init_waitqueue_head(&wd_q->wait);
 
 	up_write(&qm->qps_lock);
@@ -2327,7 +2330,7 @@ int hisi_qm_restart(struct hisi_qm *qm)
 		qp = qm->qp_array[i];
 
 		if (qp && atomic_read(&qp->qp_status.flags) == QP_STOP &&
-		    qp->is_resetting) {
+		    qp->is_resetting && qp->is_in_kernel) {
 			ret = hisi_qm_start_qp_nolock(qp, 0);
 			if (ret < 0) {
 				dev_err(dev, "Failed to start qp%d!\n", i);

drivers/crypto/hisilicon/qm.h

@@ -320,6 +320,7 @@ struct hisi_qp {
 
 	struct hisi_qm *qm;
 	bool is_resetting;
+	bool is_in_kernel;
 
 #ifdef CONFIG_CRYPTO_QM_UACCE
 	u16 pasid;