38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
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From eeeacb6170dabebbfb5fcbcb3fa240db11cdd362 Mon Sep 17 00:00:00 2001
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From: Huisong Li <lihuisong@huawei.com>
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Date: Fri, 10 Mar 2023 17:35:03 +0800
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Subject: net/hns3: fix possible truncation of hash key when config
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[ upstream commit bb38316e738ad6009b3f20b3abfaf27ea8cb0202 ]
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The hash key length of hns3 driver is obtained from firmware. If the
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length is a multiple of HNS3_RSS_HASH_KEY_NUM (16), the last part
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of hash key will be truncated.
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Fixes: 88347111eb53 ("net/hns3: refactor set RSS hash algorithm and key interface")
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Cc: stable@dpdk.org
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Signed-off-by: Huisong Li <lihuisong@huawei.com>
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Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
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---
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drivers/net/hns3/hns3_rss.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/drivers/net/hns3/hns3_rss.c b/drivers/net/hns3/hns3_rss.c
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index d6e0754273..2011c18b9b 100644
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--- a/drivers/net/hns3/hns3_rss.c
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+++ b/drivers/net/hns3/hns3_rss.c
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@@ -301,7 +301,8 @@ hns3_rss_set_algo_key(struct hns3_hw *hw, uint8_t hash_algo,
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req->hash_config |= (hash_algo & HNS3_RSS_HASH_ALGO_MASK);
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req->hash_config |= (idx << HNS3_RSS_HASH_KEY_OFFSET_B);
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- if (idx == max_bd_num - 1)
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+ if (idx == max_bd_num - 1 &&
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+ (key_len % HNS3_RSS_HASH_KEY_NUM) != 0)
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cur_key_size = key_len % HNS3_RSS_HASH_KEY_NUM;
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else
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cur_key_size = HNS3_RSS_HASH_KEY_NUM;
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--
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2.23.0
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