diff mbox series

[5/5] net/hns3: fix key length when configuring RSS

Message ID 1590139278-11046-6-git-send-email-xavier.huwei@huawei.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series misc updates for hns3 PMD driver |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/travis-robot success Travis build: passed
ci/Intel-compilation success Compilation OK

Commit Message

Wei Hu (Xavier) May 22, 2020, 9:21 a.m. UTC 
  From: Lijun Ou <oulijun@huawei.com>

When users set the length of rss hash key greater than the supported
length by hardware, the pmd driver should intercept and can not
configure the wrong key into the hardware.

Fixes: c37ca66f2b27 ("net/hns3: support RSS")
Cc: stable@dpdk.org

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
---
 drivers/net/hns3/hns3_flow.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/hns3/hns3_flow.c b/drivers/net/hns3/hns3_flow.c
index aef301a..e3c2392 100644
--- a/drivers/net/hns3/hns3_flow.c
+++ b/drivers/net/hns3/hns3_flow.c
@@ -1475,6 +1475,14 @@  hns3_config_rss_filter(struct rte_eth_dev *dev,
 		return -EINVAL;
 	}
 
+	if (rss_flow_conf.key_len &&
+	    rss_flow_conf.key_len > RTE_DIM(rss_info->key)) {
+		hns3_err(hw,
+			"input hash key(%u) greater than supported len(%lu)",
+			rss_flow_conf.key_len, RTE_DIM(rss_info->key));
+		return -EINVAL;
+	}
+
 	/* Filter the unsupported flow types */
 	flow_types = rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT;
 	if (flow_types != rss_flow_conf.types)