From: Adrien Mazarguil Date: Thu, 19 Apr 2018 10:07:27 +0000 (+0200) Subject: net/mlx4: fix ignored RSS hash types X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=ef134c8daa0873daa3aa9b02313d6f452c3477a2;p=dpdk.git net/mlx4: fix ignored RSS hash types When an unsupported hash type is part of a RSS configuration structure, it is silently ignored instead of triggering an error. This may lead applications to assume that such types are accepted, while they are in fact not part of the resulting flow rules. Fixes: 078b8b452e6b ("net/mlx4: add RSS flow rule action support") Cc: stable@dpdk.org Signed-off-by: Adrien Mazarguil Acked-by: Nelio Laranjeiro Acked-by: Ferruh Yigit --- diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c index 2b4bf70949..67fd568bcd 100644 --- a/drivers/net/mlx4/mlx4_flow.c +++ b/drivers/net/mlx4/mlx4_flow.c @@ -706,6 +706,7 @@ fill: const struct rte_flow_action_queue *queue; const struct rte_flow_action_rss *rss; const struct rte_eth_rss_conf *rss_conf; + uint64_t fields; unsigned int i; case RTE_FLOW_ACTION_TYPE_VOID: @@ -780,10 +781,15 @@ fill: " of the context size"; goto exit_action_not_supported; } + rte_errno = 0; + fields = mlx4_conv_rss_hf(priv, rss_conf->rss_hf); + if (fields == (uint64_t)-1 && rte_errno) { + msg = "unsupported RSS hash type requested"; + goto exit_action_not_supported; + } flow->rss = mlx4_rss_get - (priv, - mlx4_conv_rss_hf(priv, rss_conf->rss_hf), - rss_conf->rss_key, rss->num, rss->queue); + (priv, fields, rss_conf->rss_key, rss->num, + rss->queue); if (!flow->rss) { msg = "either invalid parameters or not enough" " resources for additional multi-queue"