From 83cf204a982918fd56b15f9d458d1dfb1e724b5f Mon Sep 17 00:00:00 2001 From: Igor Romanov Date: Wed, 29 Aug 2018 08:51:24 +0100 Subject: [PATCH] net/bonding: do not ignore RSS key on device config Bonding driver ignores the value of RSS key (that is set in the port RSS configuration) in bond_ethdev_configure(). So the only way to set non-default RSS key is by using rss_hash_update(). This is not an expected behaviour. Make the bond_ethdev_configure() set default RSS key only if requested key is set to NULL. Fixes: 734ce47f71e0 ("bonding: support RSS dynamic configuration") Cc: stable@dpdk.org Signed-off-by: Igor Romanov Signed-off-by: Andrew Rybchenko Acked-by: Chas Williams --- drivers/net/bonding/rte_eth_bond_pmd.c | 27 ++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c index 0f5ab09e38..7814258f23 100644 --- a/drivers/net/bonding/rte_eth_bond_pmd.c +++ b/drivers/net/bonding/rte_eth_bond_pmd.c @@ -1778,12 +1778,11 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev, /* If RSS is enabled for bonding, try to enable it for slaves */ if (bonded_eth_dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) { - if (bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len - != 0) { + if (internals->rss_key_len != 0) { slave_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len = - bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len; + internals->rss_key_len; slave_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key = - bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key; + internals->rss_key; } else { slave_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key = NULL; } @@ -3284,11 +3283,23 @@ bond_ethdev_configure(struct rte_eth_dev *dev) unsigned i, j; - /* If RSS is enabled, fill table and key with default values */ + /* + * If RSS is enabled, fill table with default values and + * set key to the the value specified in port RSS configuration. + * Fall back to default RSS key if the key is not specified + */ if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS) { - dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key = internals->rss_key; - dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len = 0; - memcpy(internals->rss_key, default_rss_key, 40); + if (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key != NULL) { + internals->rss_key_len = + dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len; + memcpy(internals->rss_key, + dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key, + internals->rss_key_len); + } else { + internals->rss_key_len = sizeof(default_rss_key); + memcpy(internals->rss_key, default_rss_key, + internals->rss_key_len); + } for (i = 0; i < RTE_DIM(internals->reta_conf); i++) { internals->reta_conf[i].mask = ~0LL;