linux-kernel - [PATCH 5.18 072/141] net: hns3: fix PF rss size initialization bug

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Message-Id: <20220620124731.667222691@linuxfoundation.org>
Date:   Mon, 20 Jun 2022 14:50:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jie Wang <wangjie125@...wei.com>,
        Guangbin Huang <huangguangbin2@...wei.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 072/141] net: hns3: fix PF rss size initialization bug

From: Jie Wang <wangjie125@...wei.com>

[ Upstream commit 71b215f36dca1a3d5d1c576b2099e6d7ea03047e ]

Currently hns3 driver misuses the VF rss size to initialize the PF rss size
in hclge_tm_vport_tc_info_update. So this patch fix it by checking the
vport id before initialization.

Fixes: 7347255ea389 ("net: hns3: refactor PF rss get APIs with new common rss get APIs")
Signed-off-by: Jie Wang <wangjie125@...wei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index ad53a3447322..f5296ff60694 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -681,7 +681,9 @@ static void hclge_tm_vport_tc_info_update(struct hclge_vport *vport)
 	kinfo->num_tqps = hclge_vport_get_tqp_num(vport);
 	vport->dwrr = 100;  /* 100 percent as init */
 	vport->bw_limit = hdev->tm_info.pg_info[0].bw_limit;
-	hdev->rss_cfg.rss_size = kinfo->rss_size;
+
+	if (vport->vport_id == PF_VPORT_ID)
+		hdev->rss_cfg.rss_size = kinfo->rss_size;
 
 	/* when enable mqprio, the tc_info has been updated. */
 	if (kinfo->tc_info.mqprio_active)
-- 
2.35.1