From: Nelio Laranjeiro Date: Fri, 30 Oct 2015 18:55:15 +0000 (+0100) Subject: mlx5: disable useless flows in promiscuous mode X-Git-Tag: spdx-start~8244 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5b45c208f808d854c98d75fabeedabb00780fd4f;p=dpdk.git mlx5: disable useless flows in promiscuous mode Only a single flow per hash RX queue is needed in promiscuous mode. Disable others to free up hardware resources. Signed-off-by: Nelio Laranjeiro Signed-off-by: Adrien Mazarguil Signed-off-by: Yaacov Hazan --- diff --git a/drivers/net/mlx5/mlx5_mac.c b/drivers/net/mlx5/mlx5_mac.c index d3ab5b9859..c7927c1a84 100644 --- a/drivers/net/mlx5/mlx5_mac.c +++ b/drivers/net/mlx5/mlx5_mac.c @@ -410,6 +410,8 @@ priv_mac_addr_add(struct priv *priv, unsigned int mac_index, (*mac)[3], (*mac)[4], (*mac)[5] } }; + if (!priv_allow_flow_type(priv, HASH_RXQ_FLOW_TYPE_MAC)) + goto end; for (i = 0; (i != priv->hash_rxqs_n); ++i) { ret = hash_rxq_mac_addr_add(&(*priv->hash_rxqs)[i], mac_index); if (!ret) @@ -420,6 +422,7 @@ priv_mac_addr_add(struct priv *priv, unsigned int mac_index, mac_index); return ret; } +end: BITFIELD_SET(priv->mac_configured, mac_index); return 0; } @@ -439,6 +442,8 @@ priv_mac_addrs_enable(struct priv *priv) unsigned int i; int ret; + if (!priv_allow_flow_type(priv, HASH_RXQ_FLOW_TYPE_MAC)) + return 0; for (i = 0; (i != priv->hash_rxqs_n); ++i) { ret = hash_rxq_mac_addrs_add(&(*priv->hash_rxqs)[i]); if (!ret) diff --git a/drivers/net/mlx5/mlx5_rxmode.c b/drivers/net/mlx5/mlx5_rxmode.c index 7794608f41..f7de1b861d 100644 --- a/drivers/net/mlx5/mlx5_rxmode.c +++ b/drivers/net/mlx5/mlx5_rxmode.c @@ -113,6 +113,8 @@ priv_promiscuous_enable(struct priv *priv) { unsigned int i; + if (!priv_allow_flow_type(priv, HASH_RXQ_FLOW_TYPE_PROMISC)) + return 0; for (i = 0; (i != priv->hash_rxqs_n); ++i) { struct hash_rxq *hash_rxq = &(*priv->hash_rxqs)[i]; int ret; @@ -147,6 +149,10 @@ mlx5_promiscuous_enable(struct rte_eth_dev *dev) ret = priv_promiscuous_enable(priv); if (ret) ERROR("cannot enable promiscuous mode: %s", strerror(ret)); + else { + priv_mac_addrs_disable(priv); + priv_allmulticast_disable(priv); + } priv_unlock(priv); } @@ -196,6 +202,8 @@ mlx5_promiscuous_disable(struct rte_eth_dev *dev) priv_lock(priv); priv->promisc_req = 0; priv_promiscuous_disable(priv); + priv_mac_addrs_enable(priv); + priv_allmulticast_enable(priv); priv_unlock(priv); } @@ -266,6 +274,8 @@ priv_allmulticast_enable(struct priv *priv) { unsigned int i; + if (!priv_allow_flow_type(priv, HASH_RXQ_FLOW_TYPE_ALLMULTI)) + return 0; for (i = 0; (i != priv->hash_rxqs_n); ++i) { struct hash_rxq *hash_rxq = &(*priv->hash_rxqs)[i]; int ret; diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c index d46fc132a7..bdd54299f0 100644 --- a/drivers/net/mlx5/mlx5_rxq.c +++ b/drivers/net/mlx5/mlx5_rxq.c @@ -538,6 +538,35 @@ priv_destroy_hash_rxqs(struct priv *priv) priv->ind_tables = NULL; } +/** + * Check whether a given flow type is allowed. + * + * @param priv + * Pointer to private structure. + * @param type + * Flow type to check. + * + * @return + * Nonzero if the given flow type is allowed. + */ +int +priv_allow_flow_type(struct priv *priv, enum hash_rxq_flow_type type) +{ + /* Only FLOW_TYPE_PROMISC is allowed when promiscuous mode + * has been requested. */ + if (priv->promisc_req) + return (type == HASH_RXQ_FLOW_TYPE_PROMISC); + switch (type) { + case HASH_RXQ_FLOW_TYPE_PROMISC: + return !!priv->promisc_req; + case HASH_RXQ_FLOW_TYPE_ALLMULTI: + return !!priv->allmulti_req; + case HASH_RXQ_FLOW_TYPE_MAC: + return 1; + } + return 0; +} + /** * Allocate RX queue elements with scattered packets support. * diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h index 651eb95943..dc23f4feca 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -159,6 +159,12 @@ struct ind_table_init { unsigned int hash_types_n; }; +enum hash_rxq_flow_type { + HASH_RXQ_FLOW_TYPE_MAC, + HASH_RXQ_FLOW_TYPE_PROMISC, + HASH_RXQ_FLOW_TYPE_ALLMULTI, +}; + struct hash_rxq { struct priv *priv; /* Back pointer to private data. */ struct ibv_qp *qp; /* Hash RX QP. */ @@ -223,6 +229,7 @@ size_t hash_rxq_flow_attr(const struct hash_rxq *, struct ibv_flow_attr *, size_t); int priv_create_hash_rxqs(struct priv *); void priv_destroy_hash_rxqs(struct priv *); +int priv_allow_flow_type(struct priv *, enum hash_rxq_flow_type); void rxq_cleanup(struct rxq *); int rxq_rehash(struct rte_eth_dev *, struct rxq *); int rxq_setup(struct rte_eth_dev *, struct rxq *, uint16_t, unsigned int, diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c index 233c0d8bdc..68e00a0b3d 100644 --- a/drivers/net/mlx5/mlx5_trigger.c +++ b/drivers/net/mlx5/mlx5_trigger.c @@ -70,10 +70,10 @@ mlx5_dev_start(struct rte_eth_dev *dev) DEBUG("%p: allocating and configuring hash RX queues", (void *)dev); err = priv_create_hash_rxqs(priv); if (!err) - err = priv_mac_addrs_enable(priv); - if (!err && priv->promisc_req) err = priv_promiscuous_enable(priv); - if (!err && priv->allmulti_req) + if (!err) + err = priv_mac_addrs_enable(priv); + if (!err) err = priv_allmulticast_enable(priv); if (!err) priv->started = 1;