[dpdk-dev] [PATCH] ethdev: check for Rx RSS distribution and RSS hash
Lijun Ou
oulijun at huawei.com
Mon Apr 27 14:34:49 CEST 2020
When rte api checks the Rx RSS distribution is enable but the RSS
hash is disabled, it will return an error.
Signed-off-by: Lijun Ou <oulijun at huawei.com>
---
lib/librte_ethdev/rte_ethdev.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 0854ef8..07734c4 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -1411,6 +1411,17 @@ rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
goto rollback;
}
+ /* Check if Rx RSS distribution is enable but RSS hash is disabled. */
+ if (((dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) != 0) &&
+ !(dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_RSS_HASH)) {
+ RTE_ETHDEV_LOG(ERR,
+ "Ethdev port_id=%u config valid Rx mq_mode with RSS but %s offload is no-requested\n",
+ port_id,
+ rte_eth_dev_rx_offload_name(DEV_RX_OFFLOAD_RSS_HASH));
+ ret = -EINVAL;
+ goto rollback;
+ }
+
/*
* Setup new number of RX/TX queues and reconfigure device.
*/
--
2.7.4
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