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net/nfp: fix RSS hash configuration reporting

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Prior to this fix the NFP PMD implementation of the .rss_hash_conf_get
callback did not propagate the current hardware state of rss_hf back up
to the caller. Users of the hash_conf_get callback would receive an
incorrect representation of what the RSS configuration currently is in
hardware.

Fixes: 934e4c60fbff ("nfp: add RSS")
Cc: stable@dpdk.org

Signed-off-by: Heinrich Kuhn <heinrich.kuhn@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
This commit is contained in:
Heinrich Kuhn 2020-07-10 16:28:46 +02:00 committed by Ferruh Yigit
parent 4940344dab
commit 198e745083
1 changed files with 3 additions and 0 deletions
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3
drivers/net/nfp/nfp_net.c
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@ -2621,6 +2621,9 @@ nfp_net_rss_hash_conf_get(struct rte_eth_dev *dev,
if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6)
rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP;
/* Propagate current RSS hash functions to caller */
rss_conf->rss_hf = rss_hf;
/* Reading the key size */
rss_conf->rss_key_len = nn_cfg_readl(hw, NFP_NET_CFG_RSS_KEY_SZ);