linux-kernel - [PATCH v3 08/11] crypto: hisilicon/qm - optimize device selection priority based on queue ref count and NUMA distance

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Message-ID: <20251122074916.2793717-9-huangchenghai2@huawei.com>
Date: Sat, 22 Nov 2025 15:49:13 +0800
From: Chenghai Huang <huangchenghai2@...wei.com>
To: <herbert@...dor.apana.org.au>, <davem@...emloft.net>
CC: <linux-kernel@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
	<fanghao11@...wei.com>, <liulongfang@...wei.com>, <qianweili@...wei.com>,
	<linwenkai6@...ilicon.com>, <wangzhou1@...ilicon.com>, <lizhi206@...wei.com>,
	<taoqi10@...wei.com>
Subject: [PATCH v3 08/11] crypto: hisilicon/qm - optimize device selection priority based on queue ref count and NUMA distance

Add device sorting criteria to prioritize devices with fewer
references and closer NUMA distances. Devices that are fully
occupied will not be prioritized for use.

Signed-off-by: Chenghai Huang <huangchenghai2@...wei.com>
Signed-off-by: Weili Qian <qianweili@...wei.com>
---
 drivers/crypto/hisilicon/qm.c | 35 +++++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 10 deletions(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 6ff189941300..e4f360172477 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -3592,6 +3592,20 @@ void hisi_qm_free_qps(struct hisi_qp **qps, int qp_num)
 }
 EXPORT_SYMBOL_GPL(hisi_qm_free_qps);
 
+static void qm_insert_sorted(struct list_head *head, struct hisi_qm_resource *res)
+{
+	struct hisi_qm_resource *tmp;
+	struct list_head *n = head;
+
+	list_for_each_entry(tmp, head, list) {
+		if (res->distance < tmp->distance) {
+			n = &tmp->list;
+			break;
+		}
+	}
+	list_add_tail(&res->list, n);
+}
+
 static void free_list(struct list_head *head)
 {
 	struct hisi_qm_resource *res, *tmp;
@@ -3652,11 +3666,12 @@ static int qm_get_and_start_qp(struct hisi_qm *qm, int qp_num, struct hisi_qp **
 static int hisi_qm_sort_devices(int node, struct list_head *head,
 				struct hisi_qm_list *qm_list)
 {
-	struct hisi_qm_resource *res, *tmp;
+	struct hisi_qm_resource *res;
 	struct hisi_qm *qm;
-	struct list_head *n;
 	struct device *dev;
 	int dev_node;
+	LIST_HEAD(non_full_list);
+	LIST_HEAD(full_list);
 
 	list_for_each_entry(qm, &qm_list->list, list) {
 		dev = &qm->pdev->dev;
@@ -3671,16 +3686,16 @@ static int hisi_qm_sort_devices(int node, struct list_head *head,
 
 		res->qm = qm;
 		res->distance = node_distance(dev_node, node);
-		n = head;
-		list_for_each_entry(tmp, head, list) {
-			if (res->distance < tmp->distance) {
-				n = &tmp->list;
-				break;
-			}
-		}
-		list_add_tail(&res->list, n);
+
+		if (qm->qp_in_used == qm->qp_num)
+			qm_insert_sorted(&full_list, res);
+		else
+			qm_insert_sorted(&non_full_list, res);
 	}
 
+	list_splice_tail(&non_full_list, head);
+	list_splice_tail(&full_list, head);
+
 	return 0;
 }
 
-- 
2.33.0