From 1bdbe1af99b27acadb7993b429e6625b2f9fa6ff Mon Sep 17 00:00:00 2001 From: Adrien Mazarguil Date: Fri, 30 Oct 2015 19:52:37 +0100 Subject: [PATCH] mlx5: support promiscuous and allmulticast Rx modes These modes require special non-MAC flows. Signed-off-by: Adrien Mazarguil Signed-off-by: Nelio Laranjeiro Signed-off-by: Yaacov Hazan --- drivers/net/mlx5/Makefile | 1 + drivers/net/mlx5/mlx5.c | 4 + drivers/net/mlx5/mlx5.h | 13 ++ drivers/net/mlx5/mlx5_ethdev.c | 4 + drivers/net/mlx5/mlx5_rxmode.c | 311 ++++++++++++++++++++++++++++++++ drivers/net/mlx5/mlx5_rxq.c | 12 ++ drivers/net/mlx5/mlx5_rxtx.h | 2 + drivers/net/mlx5/mlx5_trigger.c | 8 + 8 files changed, 355 insertions(+) create mode 100644 drivers/net/mlx5/mlx5_rxmode.c diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile index 88b361ca5b..4d25d9c94b 100644 --- a/drivers/net/mlx5/Makefile +++ b/drivers/net/mlx5/Makefile @@ -48,6 +48,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxtx.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_trigger.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_ethdev.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_mac.c +SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxmode.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_stats.c # Dependencies. diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index 38f5199d7a..ee63bdf6c5 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -133,6 +133,10 @@ static const struct eth_dev_ops mlx5_dev_ops = { .dev_start = mlx5_dev_start, .dev_stop = mlx5_dev_stop, .dev_close = mlx5_dev_close, + .promiscuous_enable = mlx5_promiscuous_enable, + .promiscuous_disable = mlx5_promiscuous_disable, + .allmulticast_enable = mlx5_allmulticast_enable, + .allmulticast_disable = mlx5_allmulticast_disable, .stats_get = mlx5_stats_get, .stats_reset = mlx5_stats_reset, .dev_infos_get = mlx5_dev_infos_get, diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index 79559bc7e2..56da43cf5e 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -94,6 +94,8 @@ struct priv { uint16_t mtu; /* Configured MTU. */ uint8_t port; /* Physical port number. */ unsigned int started:1; /* Device started, flows enabled. */ + unsigned int promisc_req:1; /* Promiscuous mode requested. */ + unsigned int allmulti_req:1; /* All multicast mode requested. */ unsigned int hw_qpg:1; /* QP groups are supported. */ unsigned int hw_tss:1; /* TSS is supported. */ unsigned int hw_rss:1; /* RSS is supported. */ @@ -177,6 +179,17 @@ int priv_mac_addr_add(struct priv *, unsigned int, void mlx5_mac_addr_add(struct rte_eth_dev *, struct ether_addr *, uint32_t, uint32_t); +/* mlx5_rxmode.c */ + +int rxq_promiscuous_enable(struct rxq *); +void mlx5_promiscuous_enable(struct rte_eth_dev *); +void rxq_promiscuous_disable(struct rxq *); +void mlx5_promiscuous_disable(struct rte_eth_dev *); +int rxq_allmulticast_enable(struct rxq *); +void mlx5_allmulticast_enable(struct rte_eth_dev *); +void rxq_allmulticast_disable(struct rxq *); +void mlx5_allmulticast_disable(struct rte_eth_dev *); + /* mlx5_stats.c */ void mlx5_stats_get(struct rte_eth_dev *, struct rte_eth_stats *); diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index 0afc1bbc24..26b6d73c2a 100644 --- a/drivers/net/mlx5/mlx5_ethdev.c +++ b/drivers/net/mlx5/mlx5_ethdev.c @@ -605,6 +605,10 @@ mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) if (!priv->rss) { if (priv->started) rxq_mac_addrs_add(rxq); + if (priv->started && priv->promisc_req) + rxq_promiscuous_enable(rxq); + if (priv->started && priv->allmulti_req) + rxq_allmulticast_enable(rxq); } /* Scattered burst function takes priority. */ if (rxq->sp) diff --git a/drivers/net/mlx5/mlx5_rxmode.c b/drivers/net/mlx5/mlx5_rxmode.c new file mode 100644 index 0000000000..7efa21b2bb --- /dev/null +++ b/drivers/net/mlx5/mlx5_rxmode.c @@ -0,0 +1,311 @@ +/*- + * BSD LICENSE + * + * Copyright 2015 6WIND S.A. + * Copyright 2015 Mellanox. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of 6WIND S.A. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include + +/* Verbs header. */ +/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ +#ifdef PEDANTIC +#pragma GCC diagnostic ignored "-pedantic" +#endif +#include +#ifdef PEDANTIC +#pragma GCC diagnostic error "-pedantic" +#endif + +/* DPDK headers don't like -pedantic. */ +#ifdef PEDANTIC +#pragma GCC diagnostic ignored "-pedantic" +#endif +#include +#ifdef PEDANTIC +#pragma GCC diagnostic error "-pedantic" +#endif + +#include "mlx5.h" +#include "mlx5_rxtx.h" +#include "mlx5_utils.h" + +/** + * Enable promiscuous mode in a RX queue. + * + * @param rxq + * Pointer to RX queue structure. + * + * @return + * 0 on success, errno value on failure. + */ +int +rxq_promiscuous_enable(struct rxq *rxq) +{ + struct ibv_flow *flow; + struct ibv_flow_attr attr = { + .type = IBV_FLOW_ATTR_ALL_DEFAULT, + .num_of_specs = 0, + .port = rxq->priv->port, + .flags = 0 + }; + + if (rxq->priv->vf) + return 0; + if (rxq->promisc_flow != NULL) + return 0; + DEBUG("%p: enabling promiscuous mode", (void *)rxq); + errno = 0; + flow = ibv_create_flow(rxq->qp, &attr); + if (flow == NULL) { + /* It's not clear whether errno is always set in this case. */ + ERROR("%p: flow configuration failed, errno=%d: %s", + (void *)rxq, errno, + (errno ? strerror(errno) : "Unknown error")); + if (errno) + return errno; + return EINVAL; + } + rxq->promisc_flow = flow; + DEBUG("%p: promiscuous mode enabled", (void *)rxq); + return 0; +} + +/** + * DPDK callback to enable promiscuous mode. + * + * @param dev + * Pointer to Ethernet device structure. + */ +void +mlx5_promiscuous_enable(struct rte_eth_dev *dev) +{ + struct priv *priv = dev->data->dev_private; + unsigned int i; + int ret; + + priv_lock(priv); + priv->promisc_req = 1; + /* If device isn't started, this is all we need to do. */ + if (!priv->started) + goto end; + if (priv->rss) { + ret = rxq_promiscuous_enable(&priv->rxq_parent); + if (ret) { + priv_unlock(priv); + return; + } + goto end; + } + for (i = 0; (i != priv->rxqs_n); ++i) { + if ((*priv->rxqs)[i] == NULL) + continue; + ret = rxq_promiscuous_enable((*priv->rxqs)[i]); + if (!ret) + continue; + /* Failure, rollback. */ + while (i != 0) + if ((*priv->rxqs)[--i] != NULL) + rxq_promiscuous_disable((*priv->rxqs)[i]); + priv_unlock(priv); + return; + } +end: + priv_unlock(priv); +} + +/** + * Disable promiscuous mode in a RX queue. + * + * @param rxq + * Pointer to RX queue structure. + */ +void +rxq_promiscuous_disable(struct rxq *rxq) +{ + if (rxq->priv->vf) + return; + if (rxq->promisc_flow == NULL) + return; + DEBUG("%p: disabling promiscuous mode", (void *)rxq); + claim_zero(ibv_destroy_flow(rxq->promisc_flow)); + rxq->promisc_flow = NULL; + DEBUG("%p: promiscuous mode disabled", (void *)rxq); +} + +/** + * DPDK callback to disable promiscuous mode. + * + * @param dev + * Pointer to Ethernet device structure. + */ +void +mlx5_promiscuous_disable(struct rte_eth_dev *dev) +{ + struct priv *priv = dev->data->dev_private; + unsigned int i; + + priv_lock(priv); + priv->promisc_req = 0; + if (priv->rss) { + rxq_promiscuous_disable(&priv->rxq_parent); + goto end; + } + for (i = 0; (i != priv->rxqs_n); ++i) + if ((*priv->rxqs)[i] != NULL) + rxq_promiscuous_disable((*priv->rxqs)[i]); +end: + priv_unlock(priv); +} + +/** + * Enable allmulti mode in a RX queue. + * + * @param rxq + * Pointer to RX queue structure. + * + * @return + * 0 on success, errno value on failure. + */ +int +rxq_allmulticast_enable(struct rxq *rxq) +{ + struct ibv_flow *flow; + struct ibv_flow_attr attr = { + .type = IBV_FLOW_ATTR_MC_DEFAULT, + .num_of_specs = 0, + .port = rxq->priv->port, + .flags = 0 + }; + + if (rxq->allmulti_flow != NULL) + return 0; + DEBUG("%p: enabling allmulticast mode", (void *)rxq); + errno = 0; + flow = ibv_create_flow(rxq->qp, &attr); + if (flow == NULL) { + /* It's not clear whether errno is always set in this case. */ + ERROR("%p: flow configuration failed, errno=%d: %s", + (void *)rxq, errno, + (errno ? strerror(errno) : "Unknown error")); + if (errno) + return errno; + return EINVAL; + } + rxq->allmulti_flow = flow; + DEBUG("%p: allmulticast mode enabled", (void *)rxq); + return 0; +} + +/** + * DPDK callback to enable allmulti mode. + * + * @param dev + * Pointer to Ethernet device structure. + */ +void +mlx5_allmulticast_enable(struct rte_eth_dev *dev) +{ + struct priv *priv = dev->data->dev_private; + unsigned int i; + int ret; + + priv_lock(priv); + priv->allmulti_req = 1; + /* If device isn't started, this is all we need to do. */ + if (!priv->started) + goto end; + if (priv->rss) { + ret = rxq_allmulticast_enable(&priv->rxq_parent); + if (ret) { + priv_unlock(priv); + return; + } + goto end; + } + for (i = 0; (i != priv->rxqs_n); ++i) { + if ((*priv->rxqs)[i] == NULL) + continue; + ret = rxq_allmulticast_enable((*priv->rxqs)[i]); + if (!ret) + continue; + /* Failure, rollback. */ + while (i != 0) + if ((*priv->rxqs)[--i] != NULL) + rxq_allmulticast_disable((*priv->rxqs)[i]); + priv_unlock(priv); + return; + } +end: + priv_unlock(priv); +} + +/** + * Disable allmulti mode in a RX queue. + * + * @param rxq + * Pointer to RX queue structure. + */ +void +rxq_allmulticast_disable(struct rxq *rxq) +{ + if (rxq->allmulti_flow == NULL) + return; + DEBUG("%p: disabling allmulticast mode", (void *)rxq); + claim_zero(ibv_destroy_flow(rxq->allmulti_flow)); + rxq->allmulti_flow = NULL; + DEBUG("%p: allmulticast mode disabled", (void *)rxq); +} + +/** + * DPDK callback to disable allmulti mode. + * + * @param dev + * Pointer to Ethernet device structure. + */ +void +mlx5_allmulticast_disable(struct rte_eth_dev *dev) +{ + struct priv *priv = dev->data->dev_private; + unsigned int i; + + priv_lock(priv); + priv->allmulti_req = 0; + if (priv->rss) { + rxq_allmulticast_disable(&priv->rxq_parent); + goto end; + } + for (i = 0; (i != priv->rxqs_n); ++i) + if ((*priv->rxqs)[i] != NULL) + rxq_allmulticast_disable((*priv->rxqs)[i]); +end: + priv_unlock(priv); +} diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c index 620ec7080e..1cd28c25d6 100644 --- a/drivers/net/mlx5/mlx5_rxq.c +++ b/drivers/net/mlx5/mlx5_rxq.c @@ -398,6 +398,8 @@ rxq_cleanup(struct rxq *rxq) ¶ms)); } if (rxq->qp != NULL) { + rxq_promiscuous_disable(rxq); + rxq_allmulticast_disable(rxq); rxq_mac_addrs_del(rxq); claim_zero(ibv_destroy_qp(rxq->qp)); } @@ -580,8 +582,12 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) } /* Remove attached flows if RSS is disabled (no parent queue). */ if (!priv->rss) { + rxq_allmulticast_disable(&tmpl); + rxq_promiscuous_disable(&tmpl); rxq_mac_addrs_del(&tmpl); /* Update original queue in case of failure. */ + rxq->allmulti_flow = tmpl.allmulti_flow; + rxq->promisc_flow = tmpl.promisc_flow; memcpy(rxq->mac_flow, tmpl.mac_flow, sizeof(rxq->mac_flow)); } /* From now on, any failure will render the queue unusable. @@ -621,7 +627,13 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) if (!priv->rss) { if (priv->started) rxq_mac_addrs_add(&tmpl); + if (priv->started && priv->promisc_req) + rxq_promiscuous_enable(&tmpl); + if (priv->started && priv->allmulti_req) + rxq_allmulticast_enable(&tmpl); /* Update original queue in case of failure. */ + rxq->allmulti_flow = tmpl.allmulti_flow; + rxq->promisc_flow = tmpl.promisc_flow; memcpy(rxq->mac_flow, tmpl.mac_flow, sizeof(rxq->mac_flow)); } /* Allocate pool. */ diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h index 4183820347..020acf0712 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -106,6 +106,8 @@ struct rxq { struct ibv_exp_cq_family *if_cq; /* CQ interface. */ /* MAC flow steering rules. */ struct ibv_flow *mac_flow[MLX5_MAX_MAC_ADDRESSES]; + struct ibv_flow *promisc_flow; /* Promiscuous flow. */ + struct ibv_flow *allmulti_flow; /* Multicast flow. */ unsigned int port_id; /* Port ID for incoming packets. */ unsigned int elts_n; /* (*elts)[] length. */ unsigned int elts_head; /* Current index in (*elts)[]. */ diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c index f5d965ff8f..dced02545e 100644 --- a/drivers/net/mlx5/mlx5_trigger.c +++ b/drivers/net/mlx5/mlx5_trigger.c @@ -86,6 +86,10 @@ mlx5_dev_start(struct rte_eth_dev *dev) if (rxq == NULL) continue; ret = rxq_mac_addrs_add(rxq); + if (!ret && priv->promisc_req) + ret = rxq_promiscuous_enable(rxq); + if (!ret && priv->allmulti_req) + ret = rxq_allmulticast_enable(rxq); if (!ret) continue; WARN("%p: QP flow attachment failed: %s", @@ -94,6 +98,8 @@ mlx5_dev_start(struct rte_eth_dev *dev) while (i != 0) { rxq = (*priv->rxqs)[--i]; if (rxq != NULL) { + rxq_allmulticast_disable(rxq); + rxq_promiscuous_disable(rxq); rxq_mac_addrs_del(rxq); } } @@ -140,6 +146,8 @@ mlx5_dev_stop(struct rte_eth_dev *dev) /* Ignore nonexistent RX queues. */ if (rxq == NULL) continue; + rxq_allmulticast_disable(rxq); + rxq_promiscuous_disable(rxq); rxq_mac_addrs_del(rxq); } while ((--r) && ((rxq = (*priv->rxqs)[++i]), i)); priv_unlock(priv); -- 2.20.1