diff options
Diffstat (limited to 'drivers/net/mlx4')
| -rw-r--r-- | drivers/net/mlx4/Makefile | 6 | ||||
| -rw-r--r-- | drivers/net/mlx4/mlx4.c | 682 | ||||
| -rw-r--r-- | drivers/net/mlx4/mlx4.h | 31 | ||||
| -rw-r--r-- | drivers/net/mlx4/mlx4_flow.c | 238 | ||||
| -rw-r--r-- | drivers/net/mlx4/mlx4_flow.h | 8 |
5 files changed, 808 insertions, 157 deletions
diff --git a/drivers/net/mlx4/Makefile b/drivers/net/mlx4/Makefile index e873fb48..c045bd79 100644 --- a/drivers/net/mlx4/Makefile +++ b/drivers/net/mlx4/Makefile @@ -40,7 +40,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_flow.c # Basic CFLAGS. CFLAGS += -O3 -CFLAGS += -std=gnu99 -Wall -Wextra +CFLAGS += -std=c11 -Wall -Wextra CFLAGS += -g CFLAGS += -I. CFLAGS += -D_BSD_SOURCE @@ -84,6 +84,10 @@ ifdef CONFIG_RTE_LIBRTE_MLX4_SOFT_COUNTERS CFLAGS += -DMLX4_PMD_SOFT_COUNTERS=$(CONFIG_RTE_LIBRTE_MLX4_SOFT_COUNTERS) endif +ifeq ($(CONFIG_RTE_LIBRTE_MLX4_DEBUG_BROKEN_VERBS),y) +CFLAGS += -DMLX4_PMD_DEBUG_BROKEN_VERBS +endif + include $(RTE_SDK)/mk/rte.lib.mk # Generate and clean-up mlx4_autoconf.h. diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c index ec4419a8..055de49a 100644 --- a/drivers/net/mlx4/mlx4.c +++ b/drivers/net/mlx4/mlx4.c @@ -75,6 +75,7 @@ #include <rte_memory.h> #include <rte_flow.h> #include <rte_kvargs.h> +#include <rte_interrupts.h> /* Generated configuration header. */ #include "mlx4_autoconf.h" @@ -127,6 +128,18 @@ const char *pmd_mlx4_init_params[] = { NULL, }; +static int +mlx4_rx_intr_enable(struct rte_eth_dev *dev, uint16_t idx); + +static int +mlx4_rx_intr_disable(struct rte_eth_dev *dev, uint16_t idx); + +static int +priv_rx_intr_vec_enable(struct priv *priv); + +static void +priv_rx_intr_vec_disable(struct priv *priv); + /** * Check if running as a secondary process. * @@ -533,13 +546,93 @@ txq_cleanup(struct txq *txq); static int rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, - unsigned int socket, int inactive, const struct rte_eth_rxconf *conf, - struct rte_mempool *mp); + unsigned int socket, int inactive, + const struct rte_eth_rxconf *conf, + struct rte_mempool *mp, int children_n, + struct rxq *rxq_parent); static void rxq_cleanup(struct rxq *rxq); /** + * Create RSS parent queue. + * + * The new parent is inserted in front of the list in the private structure. + * + * @param priv + * Pointer to private structure. + * @param queues + * Queues indices array, if NULL use all Rx queues. + * @param children_n + * The number of entries in queues[]. + * + * @return + * Pointer to a parent rxq structure, NULL on failure. + */ +struct rxq * +priv_parent_create(struct priv *priv, + uint16_t queues[], + uint16_t children_n) +{ + int ret; + uint16_t i; + struct rxq *parent; + + parent = rte_zmalloc("parent queue", + sizeof(*parent), + RTE_CACHE_LINE_SIZE); + if (!parent) { + ERROR("cannot allocate memory for RSS parent queue"); + return NULL; + } + ret = rxq_setup(priv->dev, parent, 0, 0, 0, + NULL, NULL, children_n, NULL); + if (ret) { + rte_free(parent); + return NULL; + } + parent->rss.queues_n = children_n; + if (queues) { + for (i = 0; i < children_n; ++i) + parent->rss.queues[i] = queues[i]; + } else { + /* the default RSS ring case */ + assert(priv->rxqs_n == children_n); + for (i = 0; i < priv->rxqs_n; ++i) + parent->rss.queues[i] = i; + } + LIST_INSERT_HEAD(&priv->parents, parent, next); + return parent; +} + +/** + * Clean up RX queue parent structure. + * + * @param parent + * RX queue parent structure. + */ +void +rxq_parent_cleanup(struct rxq *parent) +{ + LIST_REMOVE(parent, next); + rxq_cleanup(parent); + rte_free(parent); +} + +/** + * Clean up parent structures from the parent list. + * + * @param priv + * Pointer to private structure. + */ +static void +priv_parent_list_cleanup(struct priv *priv) +{ + while (!LIST_EMPTY(&priv->parents)) + rxq_parent_cleanup(LIST_FIRST(&priv->parents)); +} + +/** * Ethernet device configuration. * * Prepare the driver for a given number of TX and RX queues. @@ -558,7 +651,6 @@ dev_configure(struct rte_eth_dev *dev) unsigned int rxqs_n = dev->data->nb_rx_queues; unsigned int txqs_n = dev->data->nb_tx_queues; unsigned int tmp; - int ret; priv->rxqs = (void *)dev->data->rx_queues; priv->txqs = (void *)dev->data->tx_queues; @@ -569,7 +661,7 @@ dev_configure(struct rte_eth_dev *dev) } if (rxqs_n == priv->rxqs_n) return 0; - if (!rte_is_power_of_2(rxqs_n)) { + if (!rte_is_power_of_2(rxqs_n) && !priv->isolated) { unsigned n_active; n_active = rte_align32pow2(rxqs_n + 1) >> 1; @@ -588,7 +680,7 @@ dev_configure(struct rte_eth_dev *dev) for (i = 0; (i != priv->rxqs_n); ++i) if ((*priv->rxqs)[i] != NULL) return EINVAL; - rxq_cleanup(&priv->rxq_parent); + priv_parent_list_cleanup(priv); priv->rss = 0; priv->rxqs_n = 0; } @@ -613,14 +705,14 @@ dev_configure(struct rte_eth_dev *dev) priv->rss = 1; tmp = priv->rxqs_n; priv->rxqs_n = rxqs_n; - ret = rxq_setup(dev, &priv->rxq_parent, 0, 0, 0, NULL, NULL); - if (!ret) + if (priv->isolated) + return 0; + if (priv_parent_create(priv, NULL, priv->rxqs_n)) return 0; /* Failure, rollback. */ priv->rss = 0; priv->rxqs_n = tmp; - assert(ret > 0); - return ret; + return ENOMEM; } /** @@ -1098,7 +1190,7 @@ static int mlx4_check_mempool(struct rte_mempool *mp, uintptr_t *start, /* For best performance, this function should not be inlined. */ static struct ibv_mr *mlx4_mp2mr(struct ibv_pd *, struct rte_mempool *) - __attribute__((noinline)); + __rte_noinline; /** * Register mempool as a memory region. @@ -2499,11 +2591,12 @@ priv_mac_addr_del(struct priv *priv, unsigned int mac_index) { unsigned int i; + assert(!priv->isolated); assert(mac_index < elemof(priv->mac)); if (!BITFIELD_ISSET(priv->mac_configured, mac_index)) return; if (priv->rss) { - rxq_mac_addr_del(&priv->rxq_parent, mac_index); + rxq_mac_addr_del(LIST_FIRST(&priv->parents), mac_index); goto end; } for (i = 0; (i != priv->dev->data->nb_rx_queues); ++i) @@ -2570,7 +2663,7 @@ priv_mac_addr_add(struct priv *priv, unsigned int mac_index, goto end; } if (priv->rss) { - ret = rxq_mac_addr_add(&priv->rxq_parent, mac_index); + ret = rxq_mac_addr_add(LIST_FIRST(&priv->parents), mac_index); if (ret) return ret; goto end; @@ -2748,14 +2841,17 @@ rxq_cleanup(struct rxq *rxq) rxq->if_cq, ¶ms)); } - if (rxq->qp != NULL) { + if (rxq->qp != NULL && !rxq->priv->isolated) { rxq_promiscuous_disable(rxq); rxq_allmulticast_disable(rxq); rxq_mac_addrs_del(rxq); - claim_zero(ibv_destroy_qp(rxq->qp)); } + if (rxq->qp != NULL) + claim_zero(ibv_destroy_qp(rxq->qp)); if (rxq->cq != NULL) claim_zero(ibv_destroy_cq(rxq->cq)); + if (rxq->channel != NULL) + claim_zero(ibv_destroy_comp_channel(rxq->channel)); if (rxq->rd != NULL) { struct ibv_exp_destroy_res_domain_attr attr = { .comp_mask = 0, @@ -2987,6 +3083,13 @@ mlx4_rx_burst_sp(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) NB_SEGS(rep) = 0x2a; PORT(rep) = 0x2a; rep->ol_flags = -1; + /* + * Clear special flags in mbuf to avoid + * crashing while freeing. + */ + rep->ol_flags &= + ~(uint64_t)(IND_ATTACHED_MBUF | + CTRL_MBUF_FLAG); #endif assert(rep->buf_len == seg->buf_len); /* Reconfigure sge to use rep instead of seg. */ @@ -3330,15 +3433,18 @@ rxq_setup_qp(struct priv *priv, struct ibv_cq *cq, uint16_t desc, * Completion queue to associate with QP. * @param desc * Number of descriptors in QP (hint only). - * @param parent - * If nonzero, create a parent QP, otherwise a child. + * @param children_n + * If nonzero, a number of children for parent QP and zero for a child. + * @param rxq_parent + * Pointer for a parent in a child case, NULL otherwise. * * @return * QP pointer or NULL in case of error. */ static struct ibv_qp * rxq_setup_qp_rss(struct priv *priv, struct ibv_cq *cq, uint16_t desc, - int parent, struct ibv_exp_res_domain *rd) + int children_n, struct ibv_exp_res_domain *rd, + struct rxq *rxq_parent) { struct ibv_exp_qp_init_attr attr = { /* CQ to be associated with the send queue. */ @@ -3368,16 +3474,16 @@ rxq_setup_qp_rss(struct priv *priv, struct ibv_cq *cq, uint16_t desc, attr.max_inl_recv = priv->inl_recv_size, attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_INL_RECV; #endif - if (parent) { + if (children_n > 0) { attr.qpg.qpg_type = IBV_EXP_QPG_PARENT; /* TSS isn't necessary. */ attr.qpg.parent_attrib.tss_child_count = 0; attr.qpg.parent_attrib.rss_child_count = - rte_align32pow2(priv->rxqs_n + 1) >> 1; + rte_align32pow2(children_n + 1) >> 1; DEBUG("initializing parent RSS queue"); } else { attr.qpg.qpg_type = IBV_EXP_QPG_CHILD_RX; - attr.qpg.qpg_parent = priv->rxq_parent.qp; + attr.qpg.qpg_parent = rxq_parent->qp; DEBUG("initializing child RSS queue"); } return ibv_exp_create_qp(priv->ctx, &attr); @@ -3413,13 +3519,7 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) struct ibv_recv_wr *bad_wr; unsigned int mb_len; int err; - int parent = (rxq == &priv->rxq_parent); - if (parent) { - ERROR("%p: cannot rehash parent queue %p", - (void *)dev, (void *)rxq); - return EINVAL; - } mb_len = rte_pktmbuf_data_room_size(rxq->mp); DEBUG("%p: rehashing queue %p", (void *)dev, (void *)rxq); /* Number of descriptors and mbufs currently allocated. */ @@ -3451,7 +3551,7 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) return 0; } /* Remove attached flows if RSS is disabled (no parent queue). */ - if (!priv->rss) { + if (!priv->rss && !priv->isolated) { rxq_allmulticast_disable(&tmpl); rxq_promiscuous_disable(&tmpl); rxq_mac_addrs_del(&tmpl); @@ -3464,6 +3564,8 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) } /* From now on, any failure will render the queue unusable. * Reinitialize QP. */ + if (!tmpl.qp) + goto skip_init; mod = (struct ibv_exp_qp_attr){ .qp_state = IBV_QPS_RESET }; err = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); if (err) { @@ -3471,12 +3573,6 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) assert(err > 0); return err; } - err = ibv_resize_cq(tmpl.cq, desc_n); - if (err) { - ERROR("%p: cannot resize CQ: %s", (void *)dev, strerror(err)); - assert(err > 0); - return err; - } mod = (struct ibv_exp_qp_attr){ /* Move the QP to this state. */ .qp_state = IBV_QPS_INIT, @@ -3485,9 +3581,6 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) }; err = ibv_exp_modify_qp(tmpl.qp, &mod, (IBV_EXP_QP_STATE | -#ifdef RSS_SUPPORT - (parent ? IBV_EXP_QP_GROUP_RSS : 0) | -#endif /* RSS_SUPPORT */ IBV_EXP_QP_PORT)); if (err) { ERROR("%p: QP state to IBV_QPS_INIT failed: %s", @@ -3495,8 +3588,15 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) assert(err > 0); return err; }; +skip_init: + err = ibv_resize_cq(tmpl.cq, desc_n); + if (err) { + ERROR("%p: cannot resize CQ: %s", (void *)dev, strerror(err)); + assert(err > 0); + return err; + } /* Reconfigure flows. Do not care for errors. */ - if (!priv->rss) { + if (!priv->rss && !priv->isolated) { rxq_mac_addrs_add(&tmpl); if (priv->promisc) rxq_promiscuous_enable(&tmpl); @@ -3562,6 +3662,8 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) rxq->elts_n = 0; rte_free(rxq->elts.sp); rxq->elts.sp = NULL; + if (!tmpl.qp) + goto skip_rtr; /* Post WRs. */ err = ibv_post_recv(tmpl.qp, (tmpl.sp ? @@ -3589,6 +3691,116 @@ skip_rtr: } /** + * Create verbs QP resources associated with a rxq. + * + * @param rxq + * Pointer to RX queue structure. + * @param desc + * Number of descriptors to configure in queue. + * @param inactive + * If true, the queue is disabled because its index is higher or + * equal to the real number of queues, which must be a power of 2. + * @param children_n + * The number of children in a parent case, zero for a child. + * @param rxq_parent + * The pointer to a parent RX structure for a child in RSS case, + * NULL for parent. + * + * @return + * 0 on success, errno value on failure. + */ +int +rxq_create_qp(struct rxq *rxq, + uint16_t desc, + int inactive, + int children_n, + struct rxq *rxq_parent) +{ + int ret; + struct ibv_exp_qp_attr mod; + struct ibv_exp_query_intf_params params; + enum ibv_exp_query_intf_status status; + struct ibv_recv_wr *bad_wr; + int parent = (children_n > 0); + struct priv *priv = rxq->priv; + +#ifdef RSS_SUPPORT + if (priv->rss && !inactive && (rxq_parent || parent)) + rxq->qp = rxq_setup_qp_rss(priv, rxq->cq, desc, + children_n, rxq->rd, + rxq_parent); + else +#endif /* RSS_SUPPORT */ + rxq->qp = rxq_setup_qp(priv, rxq->cq, desc, rxq->rd); + if (rxq->qp == NULL) { + ret = (errno ? errno : EINVAL); + ERROR("QP creation failure: %s", + strerror(ret)); + return ret; + } + mod = (struct ibv_exp_qp_attr){ + /* Move the QP to this state. */ + .qp_state = IBV_QPS_INIT, + /* Primary port number. */ + .port_num = priv->port + }; + ret = ibv_exp_modify_qp(rxq->qp, &mod, + (IBV_EXP_QP_STATE | +#ifdef RSS_SUPPORT + (parent ? IBV_EXP_QP_GROUP_RSS : 0) | +#endif /* RSS_SUPPORT */ + IBV_EXP_QP_PORT)); + if (ret) { + ERROR("QP state to IBV_QPS_INIT failed: %s", + strerror(ret)); + return ret; + } + if (!priv->isolated && (parent || !priv->rss)) { + /* Configure MAC and broadcast addresses. */ + ret = rxq_mac_addrs_add(rxq); + if (ret) { + ERROR("QP flow attachment failed: %s", + strerror(ret)); + return ret; + } + } + if (!parent) { + ret = ibv_post_recv(rxq->qp, + (rxq->sp ? + &(*rxq->elts.sp)[0].wr : + &(*rxq->elts.no_sp)[0].wr), + &bad_wr); + if (ret) { + ERROR("ibv_post_recv() failed for WR %p: %s", + (void *)bad_wr, + strerror(ret)); + return ret; + } + } + mod = (struct ibv_exp_qp_attr){ + .qp_state = IBV_QPS_RTR + }; + ret = ibv_exp_modify_qp(rxq->qp, &mod, IBV_EXP_QP_STATE); + if (ret) { + ERROR("QP state to IBV_QPS_RTR failed: %s", + strerror(ret)); + return ret; + } + params = (struct ibv_exp_query_intf_params){ + .intf_scope = IBV_EXP_INTF_GLOBAL, + .intf = IBV_EXP_INTF_QP_BURST, + .obj = rxq->qp, + }; + rxq->if_qp = ibv_exp_query_intf(priv->ctx, ¶ms, &status); + if (rxq->if_qp == NULL) { + ERROR("QP interface family query failed with status %d", + status); + return errno; + } + return 0; +} + +/** * Configure a RX queue. * * @param dev @@ -3606,14 +3818,21 @@ skip_rtr: * Thresholds parameters. * @param mp * Memory pool for buffer allocations. + * @param children_n + * The number of children in a parent case, zero for a child. + * @param rxq_parent + * The pointer to a parent RX structure (or NULL) in a child case, + * NULL for parent. * * @return * 0 on success, errno value on failure. */ static int rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, - unsigned int socket, int inactive, const struct rte_eth_rxconf *conf, - struct rte_mempool *mp) + unsigned int socket, int inactive, + const struct rte_eth_rxconf *conf, + struct rte_mempool *mp, int children_n, + struct rxq *rxq_parent) { struct priv *priv = dev->data->dev_private; struct rxq tmpl = { @@ -3621,17 +3840,15 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, .mp = mp, .socket = socket }; - struct ibv_exp_qp_attr mod; union { struct ibv_exp_query_intf_params params; struct ibv_exp_cq_init_attr cq; struct ibv_exp_res_domain_init_attr rd; } attr; enum ibv_exp_query_intf_status status; - struct ibv_recv_wr *bad_wr; unsigned int mb_len; int ret = 0; - int parent = (rxq == &priv->rxq_parent); + int parent = (children_n > 0); (void)conf; /* Thresholds configuration (ignored). */ /* @@ -3696,11 +3913,22 @@ skip_mr: (void *)dev, strerror(ret)); goto error; } + if (dev->data->dev_conf.intr_conf.rxq) { + tmpl.channel = ibv_create_comp_channel(priv->ctx); + if (tmpl.channel == NULL) { + ret = ENOMEM; + ERROR("%p: Rx interrupt completion channel creation" + " failure: %s", + (void *)dev, strerror(ret)); + goto error; + } + } attr.cq = (struct ibv_exp_cq_init_attr){ .comp_mask = IBV_EXP_CQ_INIT_ATTR_RES_DOMAIN, .res_domain = tmpl.rd, }; - tmpl.cq = ibv_exp_create_cq(priv->ctx, desc, NULL, NULL, 0, &attr.cq); + tmpl.cq = ibv_exp_create_cq(priv->ctx, desc, NULL, tmpl.channel, 0, + &attr.cq); if (tmpl.cq == NULL) { ret = ENOMEM; ERROR("%p: CQ creation failure: %s", @@ -3711,45 +3939,6 @@ skip_mr: priv->device_attr.max_qp_wr); DEBUG("priv->device_attr.max_sge is %d", priv->device_attr.max_sge); -#ifdef RSS_SUPPORT - if (priv->rss && !inactive) - tmpl.qp = rxq_setup_qp_rss(priv, tmpl.cq, desc, parent, - tmpl.rd); - else -#endif /* RSS_SUPPORT */ - tmpl.qp = rxq_setup_qp(priv, tmpl.cq, desc, tmpl.rd); - if (tmpl.qp == NULL) { - ret = (errno ? errno : EINVAL); - ERROR("%p: QP creation failure: %s", - (void *)dev, strerror(ret)); - goto error; - } - mod = (struct ibv_exp_qp_attr){ - /* Move the QP to this state. */ - .qp_state = IBV_QPS_INIT, - /* Primary port number. */ - .port_num = priv->port - }; - ret = ibv_exp_modify_qp(tmpl.qp, &mod, - (IBV_EXP_QP_STATE | -#ifdef RSS_SUPPORT - (parent ? IBV_EXP_QP_GROUP_RSS : 0) | -#endif /* RSS_SUPPORT */ - IBV_EXP_QP_PORT)); - if (ret) { - ERROR("%p: QP state to IBV_QPS_INIT failed: %s", - (void *)dev, strerror(ret)); - goto error; - } - if ((parent) || (!priv->rss)) { - /* Configure MAC and broadcast addresses. */ - ret = rxq_mac_addrs_add(&tmpl); - if (ret) { - ERROR("%p: QP flow attachment failed: %s", - (void *)dev, strerror(ret)); - goto error; - } - } /* Allocate descriptors for RX queues, except for the RSS parent. */ if (parent) goto skip_alloc; @@ -3760,29 +3949,14 @@ skip_mr: if (ret) { ERROR("%p: RXQ allocation failed: %s", (void *)dev, strerror(ret)); - goto error; - } - ret = ibv_post_recv(tmpl.qp, - (tmpl.sp ? - &(*tmpl.elts.sp)[0].wr : - &(*tmpl.elts.no_sp)[0].wr), - &bad_wr); - if (ret) { - ERROR("%p: ibv_post_recv() failed for WR %p: %s", - (void *)dev, - (void *)bad_wr, - strerror(ret)); - goto error; + return ret; } skip_alloc: - mod = (struct ibv_exp_qp_attr){ - .qp_state = IBV_QPS_RTR - }; - ret = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); - if (ret) { - ERROR("%p: QP state to IBV_QPS_RTR failed: %s", - (void *)dev, strerror(ret)); - goto error; + if (parent || rxq_parent || !priv->rss) { + ret = rxq_create_qp(&tmpl, desc, inactive, + children_n, rxq_parent); + if (ret) + goto error; } /* Save port ID. */ tmpl.port_id = dev->data->port_id; @@ -3794,21 +3968,11 @@ skip_alloc: }; tmpl.if_cq = ibv_exp_query_intf(priv->ctx, &attr.params, &status); if (tmpl.if_cq == NULL) { + ret = EINVAL; ERROR("%p: CQ interface family query failed with status %d", (void *)dev, status); goto error; } - attr.params = (struct ibv_exp_query_intf_params){ - .intf_scope = IBV_EXP_INTF_GLOBAL, - .intf = IBV_EXP_INTF_QP_BURST, - .obj = tmpl.qp, - }; - tmpl.if_qp = ibv_exp_query_intf(priv->ctx, &attr.params, &status); - if (tmpl.if_qp == NULL) { - ERROR("%p: QP interface family query failed with status %d", - (void *)dev, status); - goto error; - } /* Clean up rxq in case we're reinitializing it. */ DEBUG("%p: cleaning-up old rxq just in case", (void *)rxq); rxq_cleanup(rxq); @@ -3846,6 +4010,7 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, unsigned int socket, const struct rte_eth_rxconf *conf, struct rte_mempool *mp) { + struct rxq *parent; struct priv *priv = dev->data->dev_private; struct rxq *rxq = (*priv->rxqs)[idx]; int inactive = 0; @@ -3880,9 +4045,16 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, return -ENOMEM; } } - if (idx >= rte_align32pow2(priv->rxqs_n + 1) >> 1) - inactive = 1; - ret = rxq_setup(dev, rxq, desc, socket, inactive, conf, mp); + if (priv->rss && !priv->isolated) { + /* The list consists of the single default one. */ + parent = LIST_FIRST(&priv->parents); + if (idx >= rte_align32pow2(priv->rxqs_n + 1) >> 1) + inactive = 1; + } else { + parent = NULL; + } + ret = rxq_setup(dev, rxq, desc, socket, + inactive, conf, mp, 0, parent); if (ret) rte_free(rxq); else { @@ -3919,7 +4091,6 @@ mlx4_rx_queue_release(void *dpdk_rxq) return; priv = rxq->priv; priv_lock(priv); - assert(rxq != &priv->rxq_parent); for (i = 0; (i != priv->rxqs_n); ++i) if ((*priv->rxqs)[i] == rxq) { DEBUG("%p: removing RX queue %p from list", @@ -3970,8 +4141,11 @@ mlx4_dev_start(struct rte_eth_dev *dev) } DEBUG("%p: attaching configured flows to all RX queues", (void *)dev); priv->started = 1; - if (priv->rss) { - rxq = &priv->rxq_parent; + if (priv->isolated) { + rxq = NULL; + r = 1; + } else if (priv->rss) { + rxq = LIST_FIRST(&priv->parents); r = 1; } else { rxq = (*priv->rxqs)[0]; @@ -4005,6 +4179,12 @@ mlx4_dev_start(struct rte_eth_dev *dev) (void *)dev); goto err; } + ret = priv_rx_intr_vec_enable(priv); + if (ret) { + ERROR("%p: Rx interrupt vector creation failed", + (void *)dev); + goto err; + } ret = mlx4_priv_flow_start(priv); if (ret) { ERROR("%p: flow start failed: %s", @@ -4053,8 +4233,11 @@ mlx4_dev_stop(struct rte_eth_dev *dev) } DEBUG("%p: detaching flows from all RX queues", (void *)dev); priv->started = 0; - if (priv->rss) { - rxq = &priv->rxq_parent; + if (priv->isolated) { + rxq = NULL; + r = 1; + } else if (priv->rss) { + rxq = LIST_FIRST(&priv->parents); r = 1; } else { rxq = (*priv->rxqs)[0]; @@ -4188,7 +4371,7 @@ mlx4_dev_close(struct rte_eth_dev *dev) priv->txqs = NULL; } if (priv->rss) - rxq_cleanup(&priv->rxq_parent); + priv_parent_list_cleanup(priv); if (priv->pd != NULL) { assert(priv->ctx != NULL); claim_zero(ibv_dealloc_pd(priv->pd)); @@ -4197,6 +4380,7 @@ mlx4_dev_close(struct rte_eth_dev *dev) assert(priv->ctx == NULL); priv_dev_removal_interrupt_handler_uninstall(priv, dev); priv_dev_link_interrupt_handler_uninstall(priv, dev); + priv_rx_intr_vec_disable(priv); priv_unlock(priv); memset(priv, 0, sizeof(*priv)); } @@ -4300,7 +4484,7 @@ mlx4_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) unsigned int max; char ifname[IF_NAMESIZE]; - info->pci_dev = RTE_DEV_TO_PCI(dev->device); + info->pci_dev = RTE_ETH_DEV_TO_PCI(dev); if (priv == NULL) return; @@ -4481,6 +4665,8 @@ mlx4_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) if (mlx4_is_secondary()) return; priv_lock(priv); + if (priv->isolated) + goto end; DEBUG("%p: removing MAC address from index %" PRIu32, (void *)dev, index); /* Last array entry is reserved for broadcast. */ @@ -4514,6 +4700,12 @@ mlx4_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr, return -ENOTSUP; (void)vmdq; priv_lock(priv); + if (priv->isolated) { + DEBUG("%p: cannot add MAC address, " + "device is in isolated mode", (void *)dev); + re = EPERM; + goto end; + } DEBUG("%p: adding MAC address at index %" PRIu32, (void *)dev, index); /* Last array entry is reserved for broadcast. */ @@ -4561,6 +4753,12 @@ mlx4_promiscuous_enable(struct rte_eth_dev *dev) if (mlx4_is_secondary()) return; priv_lock(priv); + if (priv->isolated) { + DEBUG("%p: cannot enable promiscuous, " + "device is in isolated mode", (void *)dev); + priv_unlock(priv); + return; + } if (priv->promisc) { priv_unlock(priv); return; @@ -4569,7 +4767,7 @@ mlx4_promiscuous_enable(struct rte_eth_dev *dev) if (!priv->started) goto end; if (priv->rss) { - ret = rxq_promiscuous_enable(&priv->rxq_parent); + ret = rxq_promiscuous_enable(LIST_FIRST(&priv->parents)); if (ret) { priv_unlock(priv); return; @@ -4609,12 +4807,12 @@ mlx4_promiscuous_disable(struct rte_eth_dev *dev) if (mlx4_is_secondary()) return; priv_lock(priv); - if (!priv->promisc) { + if (!priv->promisc || priv->isolated) { priv_unlock(priv); return; } if (priv->rss) { - rxq_promiscuous_disable(&priv->rxq_parent); + rxq_promiscuous_disable(LIST_FIRST(&priv->parents)); goto end; } for (i = 0; (i != priv->rxqs_n); ++i) @@ -4641,6 +4839,12 @@ mlx4_allmulticast_enable(struct rte_eth_dev *dev) if (mlx4_is_secondary()) return; priv_lock(priv); + if (priv->isolated) { + DEBUG("%p: cannot enable allmulticast, " + "device is in isolated mode", (void *)dev); + priv_unlock(priv); + return; + } if (priv->allmulti) { priv_unlock(priv); return; @@ -4649,7 +4853,7 @@ mlx4_allmulticast_enable(struct rte_eth_dev *dev) if (!priv->started) goto end; if (priv->rss) { - ret = rxq_allmulticast_enable(&priv->rxq_parent); + ret = rxq_allmulticast_enable(LIST_FIRST(&priv->parents)); if (ret) { priv_unlock(priv); return; @@ -4689,12 +4893,12 @@ mlx4_allmulticast_disable(struct rte_eth_dev *dev) if (mlx4_is_secondary()) return; priv_lock(priv); - if (!priv->allmulti) { + if (!priv->allmulti || priv->isolated) { priv_unlock(priv); return; } if (priv->rss) { - rxq_allmulticast_disable(&priv->rxq_parent); + rxq_allmulticast_disable(LIST_FIRST(&priv->parents)); goto end; } for (i = 0; (i != priv->rxqs_n); ++i) @@ -4832,7 +5036,7 @@ mlx4_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) } /* Reenable non-RSS queue attributes. No need to check * for errors at this stage. */ - if (!priv->rss) { + if (!priv->rss && !priv->isolated) { rxq_mac_addrs_add(rxq); if (priv->promisc) rxq_promiscuous_enable(rxq); @@ -5003,7 +5207,7 @@ vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) * Rehashing flows in all RX queues is necessary. */ if (priv->rss) - rxq_mac_addrs_del(&priv->rxq_parent); + rxq_mac_addrs_del(LIST_FIRST(&priv->parents)); else for (i = 0; (i != priv->rxqs_n); ++i) if ((*priv->rxqs)[i] != NULL) @@ -5011,7 +5215,7 @@ vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) priv->vlan_filter[j].enabled = 1; if (priv->started) { if (priv->rss) - rxq_mac_addrs_add(&priv->rxq_parent); + rxq_mac_addrs_add(LIST_FIRST(&priv->parents)); else for (i = 0; (i != priv->rxqs_n); ++i) { if ((*priv->rxqs)[i] == NULL) @@ -5025,7 +5229,7 @@ vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) * Rehashing flows in all RX queues is necessary. */ if (priv->rss) - rxq_mac_addrs_del(&priv->rxq_parent); + rxq_mac_addrs_del(LIST_FIRST(&priv->parents)); else for (i = 0; (i != priv->rxqs_n); ++i) if ((*priv->rxqs)[i] != NULL) @@ -5033,7 +5237,7 @@ vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) priv->vlan_filter[j].enabled = 0; if (priv->started) { if (priv->rss) - rxq_mac_addrs_add(&priv->rxq_parent); + rxq_mac_addrs_add(LIST_FIRST(&priv->parents)); else for (i = 0; (i != priv->rxqs_n); ++i) { if ((*priv->rxqs)[i] == NULL) @@ -5067,6 +5271,12 @@ mlx4_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) if (mlx4_is_secondary()) return -E_RTE_SECONDARY; priv_lock(priv); + if (priv->isolated) { + DEBUG("%p: cannot set vlan filter, " + "device is in isolated mode", (void *)dev); + priv_unlock(priv); + return -EINVAL; + } ret = vlan_filter_set(dev, vlan_id, on); priv_unlock(priv); assert(ret >= 0); @@ -5079,6 +5289,7 @@ const struct rte_flow_ops mlx4_flow_ops = { .destroy = mlx4_flow_destroy, .flush = mlx4_flow_flush, .query = NULL, + .isolate = mlx4_flow_isolate, }; /** @@ -5157,6 +5368,8 @@ static const struct eth_dev_ops mlx4_dev_ops = { .mac_addr_set = mlx4_mac_addr_set, .mtu_set = mlx4_dev_set_mtu, .filter_ctrl = mlx4_dev_filter_ctrl, + .rx_queue_intr_enable = mlx4_rx_intr_enable, + .rx_queue_intr_disable = mlx4_rx_intr_disable, }; /** @@ -5196,7 +5409,7 @@ mlx4_ibv_device_to_pci_addr(const struct ibv_device *device, /* Extract information. */ if (sscanf(line, "PCI_SLOT_NAME=" - "%" SCNx16 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", + "%" SCNx32 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", &pci_addr->domain, &pci_addr->bus, &pci_addr->devid, @@ -5308,6 +5521,7 @@ priv_dev_status_handler(struct priv *priv, struct rte_eth_dev *dev, { struct ibv_async_event event; int port_change = 0; + struct rte_eth_link *link = &dev->data->dev_link; int ret = 0; *events = 0; @@ -5329,22 +5543,20 @@ priv_dev_status_handler(struct priv *priv, struct rte_eth_dev *dev, event.event_type, event.element.port_num); ibv_ack_async_event(&event); } - - if (port_change ^ priv->pending_alarm) { - struct rte_eth_link *link = &dev->data->dev_link; - - priv->pending_alarm = 0; - mlx4_link_update(dev, 0); - if (((link->link_speed == 0) && link->link_status) || - ((link->link_speed != 0) && !link->link_status)) { + if (!port_change) + return ret; + mlx4_link_update(dev, 0); + if (((link->link_speed == 0) && link->link_status) || + ((link->link_speed != 0) && !link->link_status)) { + if (!priv->pending_alarm) { /* Inconsistent status, check again later. */ priv->pending_alarm = 1; rte_eal_alarm_set(MLX4_ALARM_TIMEOUT_US, mlx4_dev_link_status_handler, dev); - } else { - *events |= (1 << RTE_ETH_EVENT_INTR_LSC); } + } else { + *events |= (1 << RTE_ETH_EVENT_INTR_LSC); } return ret; } @@ -5365,10 +5577,12 @@ mlx4_dev_link_status_handler(void *arg) priv_lock(priv); assert(priv->pending_alarm == 1); + priv->pending_alarm = 0; ret = priv_dev_status_handler(priv, dev, &events); priv_unlock(priv); if (ret > 0 && events & (1 << RTE_ETH_EVENT_INTR_LSC)) - _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL); + _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL, + NULL); } /** @@ -5397,7 +5611,8 @@ mlx4_dev_interrupt_handler(void *cb_arg) i++) { if (ev & (1 << i)) { ev &= ~(1 << i); - _rte_eth_dev_callback_process(dev, i, NULL); + _rte_eth_dev_callback_process(dev, i, NULL, + NULL); ret--; } } @@ -5592,6 +5807,154 @@ priv_dev_removal_interrupt_handler_install(struct priv *priv, } /** + * Allocate queue vector and fill epoll fd list for Rx interrupts. + * + * @param priv + * Pointer to private structure. + * + * @return + * 0 on success, negative on failure. + */ +static int +priv_rx_intr_vec_enable(struct priv *priv) +{ + unsigned int i; + unsigned int rxqs_n = priv->rxqs_n; + unsigned int n = RTE_MIN(rxqs_n, (uint32_t)RTE_MAX_RXTX_INTR_VEC_ID); + unsigned int count = 0; + struct rte_intr_handle *intr_handle = priv->dev->intr_handle; + + if (!priv->dev->data->dev_conf.intr_conf.rxq) + return 0; + priv_rx_intr_vec_disable(priv); + intr_handle->intr_vec = malloc(sizeof(intr_handle->intr_vec[rxqs_n])); + if (intr_handle->intr_vec == NULL) { + ERROR("failed to allocate memory for interrupt vector," + " Rx interrupts will not be supported"); + return -ENOMEM; + } + intr_handle->type = RTE_INTR_HANDLE_EXT; + for (i = 0; i != n; ++i) { + struct rxq *rxq = (*priv->rxqs)[i]; + int fd; + int flags; + int rc; + + /* Skip queues that cannot request interrupts. */ + if (!rxq || !rxq->channel) { + /* Use invalid intr_vec[] index to disable entry. */ + intr_handle->intr_vec[i] = + RTE_INTR_VEC_RXTX_OFFSET + + RTE_MAX_RXTX_INTR_VEC_ID; + continue; + } + if (count >= RTE_MAX_RXTX_INTR_VEC_ID) { + ERROR("too many Rx queues for interrupt vector size" + " (%d), Rx interrupts cannot be enabled", + RTE_MAX_RXTX_INTR_VEC_ID); + priv_rx_intr_vec_disable(priv); + return -1; + } + fd = rxq->channel->fd; + flags = fcntl(fd, F_GETFL); + rc = fcntl(fd, F_SETFL, flags | O_NONBLOCK); + if (rc < 0) { + ERROR("failed to make Rx interrupt file descriptor" + " %d non-blocking for queue index %d", fd, i); + priv_rx_intr_vec_disable(priv); + return rc; + } + intr_handle->intr_vec[i] = RTE_INTR_VEC_RXTX_OFFSET + count; + intr_handle->efds[count] = fd; + count++; + } + if (!count) + priv_rx_intr_vec_disable(priv); + else + intr_handle->nb_efd = count; + return 0; +} + +/** + * Clean up Rx interrupts handler. + * + * @param priv + * Pointer to private structure. + */ +static void +priv_rx_intr_vec_disable(struct priv *priv) +{ + struct rte_intr_handle *intr_handle = priv->dev->intr_handle; + + rte_intr_free_epoll_fd(intr_handle); + free(intr_handle->intr_vec); + intr_handle->nb_efd = 0; + intr_handle->intr_vec = NULL; +} + +/** + * DPDK callback for Rx queue interrupt enable. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * Rx queue index. + * + * @return + * 0 on success, negative on failure. + */ +static int +mlx4_rx_intr_enable(struct rte_eth_dev *dev, uint16_t idx) +{ + struct priv *priv = dev->data->dev_private; + struct rxq *rxq = (*priv->rxqs)[idx]; + int ret; + + if (!rxq || !rxq->channel) + ret = EINVAL; + else + ret = ibv_req_notify_cq(rxq->cq, 0); + if (ret) + WARN("unable to arm interrupt on rx queue %d", idx); + return -ret; +} + +/** + * DPDK callback for Rx queue interrupt disable. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * Rx queue index. + * + * @return + * 0 on success, negative on failure. + */ +static int +mlx4_rx_intr_disable(struct rte_eth_dev *dev, uint16_t idx) +{ + struct priv *priv = dev->data->dev_private; + struct rxq *rxq = (*priv->rxqs)[idx]; + struct ibv_cq *ev_cq; + void *ev_ctx; + int ret; + + if (!rxq || !rxq->channel) { + ret = EINVAL; + } else { + ret = ibv_get_cq_event(rxq->cq->channel, &ev_cq, &ev_ctx); + if (ret || ev_cq != rxq->cq) + ret = EINVAL; + } + if (ret) + WARN("unable to disable interrupt on rx queue %d", + idx); + else + ibv_ack_cq_events(rxq->cq, 1); + return -ret; +} + +/** * Verify and store value for device argument. * * @param[in] key @@ -5760,12 +6123,15 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) ibv_dev = list[i]; DEBUG("device opened"); - if (ibv_query_device(attr_ctx, &device_attr)) + if (ibv_query_device(attr_ctx, &device_attr)) { + err = ENODEV; goto error; + } INFO("%u port(s) detected", device_attr.phys_port_cnt); if (mlx4_args(pci_dev->device.devargs, &conf)) { ERROR("failed to process device arguments"); + err = EINVAL; goto error; } /* Use all ports when none are defined */ @@ -5799,19 +6165,23 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) DEBUG("using port %u (%08" PRIx32 ")", port, test); ctx = ibv_open_device(ibv_dev); - if (ctx == NULL) + if (ctx == NULL) { + err = ENODEV; goto port_error; + } /* Check port status. */ err = ibv_query_port(ctx, port, &port_attr); if (err) { ERROR("port query failed: %s", strerror(err)); + err = ENODEV; goto port_error; } if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) { ERROR("port %d is not configured in Ethernet mode", port); + err = EINVAL; goto port_error; } @@ -5848,6 +6218,7 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) #ifdef HAVE_EXP_QUERY_DEVICE if (ibv_exp_query_device(ctx, &exp_device_attr)) { ERROR("ibv_exp_query_device() failed"); + err = ENODEV; goto port_error; } #ifdef RSS_SUPPORT @@ -5923,6 +6294,7 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) if (priv_get_mac(priv, &mac.addr_bytes)) { ERROR("cannot get MAC address, is mlx4_en loaded?" " (errno: %s)", strerror(errno)); + err = ENODEV; goto port_error; } INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x", @@ -6002,8 +6374,18 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) eth_dev->device->driver = &mlx4_driver.driver; + /* + * Copy and override interrupt handle to prevent it from + * being shared between all ethdev instances of a given PCI + * device. This is required to properly handle Rx interrupts + * on all ports. + */ + priv->intr_handle_dev = *eth_dev->intr_handle; + eth_dev->intr_handle = &priv->intr_handle_dev; + priv->dev = eth_dev; eth_dev->dev_ops = &mlx4_dev_ops; + eth_dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE; /* Bring Ethernet device up. */ DEBUG("forcing Ethernet interface up"); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 9a3bae90..c0ade4f1 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -182,7 +182,13 @@ enum { (DEBUG__(__VA_ARGS__), 0) \ })[0]) #define DEBUG(...) DEBUG_(__VA_ARGS__, '\n') +#ifndef MLX4_PMD_DEBUG_BROKEN_VERBS #define claim_zero(...) assert((__VA_ARGS__) == 0) +#else /* MLX4_PMD_DEBUG_BROKEN_VERBS */ +#define claim_zero(...) \ + (void)(((__VA_ARGS__) == 0) || \ + DEBUG("Assertion `(" # __VA_ARGS__ ") == 0' failed (IGNORED).")) +#endif /* MLX4_PMD_DEBUG_BROKEN_VERBS */ #define claim_nonzero(...) assert((__VA_ARGS__) != 0) #define claim_positive(...) assert((__VA_ARGS__) >= 0) #else /* NDEBUG */ @@ -219,6 +225,7 @@ struct rxq_elt { /* RX queue descriptor. */ struct rxq { + LIST_ENTRY(rxq) next; /* Used by parent queue only */ struct priv *priv; /* Back pointer to private data. */ struct rte_mempool *mp; /* Memory Pool for allocations. */ struct ibv_mr *mr; /* Memory Region (for mp). */ @@ -226,6 +233,7 @@ struct rxq { struct ibv_qp *qp; /* Queue Pair. */ struct ibv_exp_qp_burst_family *if_qp; /* QP burst interface. */ struct ibv_exp_cq_family *if_cq; /* CQ interface. */ + struct ibv_comp_channel *channel; /* * Each VLAN ID requires a separate flow steering rule. */ @@ -246,6 +254,10 @@ struct rxq { struct mlx4_rxq_stats stats; /* RX queue counters. */ unsigned int socket; /* CPU socket ID for allocations. */ struct ibv_exp_res_domain *rd; /* Resource Domain. */ + struct { + uint16_t queues_n; + uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; + } rss; }; /* TX element. */ @@ -334,24 +346,41 @@ struct priv { unsigned int rss:1; /* RSS is enabled. */ unsigned int vf:1; /* This is a VF device. */ unsigned int pending_alarm:1; /* An alarm is pending. */ + unsigned int isolated:1; /* Toggle isolated mode. */ #ifdef INLINE_RECV unsigned int inl_recv_size; /* Inline recv size */ #endif unsigned int max_rss_tbl_sz; /* Maximum number of RSS queues. */ /* RX/TX queues. */ - struct rxq rxq_parent; /* Parent queue when RSS is enabled. */ unsigned int rxqs_n; /* RX queues array size. */ unsigned int txqs_n; /* TX queues array size. */ struct rxq *(*rxqs)[]; /* RX queues. */ struct txq *(*txqs)[]; /* TX queues. */ + struct rte_intr_handle intr_handle_dev; /* Device interrupt handler. */ struct rte_intr_handle intr_handle; /* Interrupt handler. */ struct rte_flow_drop *flow_drop_queue; /* Flow drop queue. */ LIST_HEAD(mlx4_flows, rte_flow) flows; struct rte_intr_conf intr_conf; /* Active interrupt configuration. */ + LIST_HEAD(mlx4_parents, rxq) parents; rte_spinlock_t lock; /* Lock for control functions. */ }; void priv_lock(struct priv *priv); void priv_unlock(struct priv *priv); +int +rxq_create_qp(struct rxq *rxq, + uint16_t desc, + int inactive, + int children_n, + struct rxq *rxq_parent); + +void +rxq_parent_cleanup(struct rxq *parent); + +struct rxq * +priv_parent_create(struct priv *priv, + uint16_t queues[], + uint16_t children_n); + #endif /* RTE_PMD_MLX4_H_ */ diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c index edfac038..925c89c5 100644 --- a/drivers/net/mlx4/mlx4_flow.c +++ b/drivers/net/mlx4/mlx4_flow.c @@ -112,6 +112,7 @@ struct rte_flow_drop { static const enum rte_flow_action_type valid_actions[] = { RTE_FLOW_ACTION_TYPE_DROP, RTE_FLOW_ACTION_TYPE_QUEUE, + RTE_FLOW_ACTION_TYPE_RSS, RTE_FLOW_ACTION_TYPE_END, }; @@ -672,6 +673,76 @@ priv_flow_validate(struct priv *priv, if (!queue || (queue->index > (priv->rxqs_n - 1))) goto exit_action_not_supported; action.queue = 1; + action.queues_n = 1; + action.queues[0] = queue->index; + } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { + int i; + int ierr; + const struct rte_flow_action_rss *rss = + (const struct rte_flow_action_rss *) + actions->conf; + + if (!priv->hw_rss) { + rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, + actions, + "RSS cannot be used with " + "the current configuration"); + return -rte_errno; + } + if (!priv->isolated) { + rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, + actions, + "RSS cannot be used without " + "isolated mode"); + return -rte_errno; + } + if (!rte_is_power_of_2(rss->num)) { + rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, + actions, + "the number of queues " + "should be power of two"); + return -rte_errno; + } + if (priv->max_rss_tbl_sz < rss->num) { + rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, + actions, + "the number of queues " + "is too large"); + return -rte_errno; + } + /* checking indexes array */ + ierr = 0; + for (i = 0; i < rss->num; ++i) { + int j; + if (rss->queue[i] >= priv->rxqs_n) + ierr = 1; + /* + * Prevent the user from specifying + * the same queue twice in the RSS array. + */ + for (j = i + 1; j < rss->num && !ierr; ++j) + if (rss->queue[j] == rss->queue[i]) + ierr = 1; + if (ierr) { + rte_flow_error_set( + error, + ENOTSUP, + RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, + "RSS action only supports " + "unique queue indices " + "in a list"); + return -rte_errno; + } + } + action.queue = 1; + action.queues_n = rss->num; + for (i = 0; i < rss->num; ++i) + action.queues[i] = rss->queue[i]; } else { goto exit_action_not_supported; } @@ -797,6 +868,82 @@ err: } /** + * Get RSS parent rxq structure for given queues. + * + * Creates a new or returns an existed one. + * + * @param priv + * Pointer to private structure. + * @param queues + * queues indices array, NULL in default RSS case. + * @param children_n + * the size of queues array. + * + * @return + * Pointer to a parent rxq structure, NULL on failure. + */ +static struct rxq * +priv_parent_get(struct priv *priv, + uint16_t queues[], + uint16_t children_n, + struct rte_flow_error *error) +{ + unsigned int i; + struct rxq *parent; + + for (parent = LIST_FIRST(&priv->parents); + parent; + parent = LIST_NEXT(parent, next)) { + unsigned int same = 0; + unsigned int overlap = 0; + + /* + * Find out whether an appropriate parent queue already exists + * and can be reused, otherwise make sure there are no overlaps. + */ + for (i = 0; i < children_n; ++i) { + unsigned int j; + + for (j = 0; j < parent->rss.queues_n; ++j) { + if (parent->rss.queues[j] != queues[i]) + continue; + ++overlap; + if (i == j) + ++same; + } + } + if (same == children_n && + children_n == parent->rss.queues_n) + return parent; + else if (overlap) + goto error; + } + /* Exclude the cases when some QPs were created without RSS */ + for (i = 0; i < children_n; ++i) { + struct rxq *rxq = (*priv->rxqs)[queues[i]]; + if (rxq->qp) + goto error; + } + parent = priv_parent_create(priv, queues, children_n); + if (!parent) { + rte_flow_error_set(error, + ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, "flow rule creation failure"); + return NULL; + } + return parent; + +error: + rte_flow_error_set(error, + EEXIST, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "sharing a queue between several" + " RSS groups is not supported"); + return NULL; +} + +/** * Complete flow rule creation. * * @param priv @@ -819,6 +966,7 @@ priv_flow_create_action_queue(struct priv *priv, { struct ibv_qp *qp; struct rte_flow *rte_flow; + struct rxq *rxq_parent = NULL; assert(priv->pd); assert(priv->ctx); @@ -829,14 +977,46 @@ priv_flow_create_action_queue(struct priv *priv, return NULL; } if (action->drop) { - qp = priv->flow_drop_queue->qp; + qp = priv->flow_drop_queue ? priv->flow_drop_queue->qp : NULL; } else { - struct rxq *rxq = (*priv->rxqs)[action->queue_id]; + int ret; + unsigned int i; + struct rxq *rxq = NULL; - qp = rxq->qp; + if (action->queues_n > 1) { + rxq_parent = priv_parent_get(priv, action->queues, + action->queues_n, error); + if (!rxq_parent) + goto error; + } + for (i = 0; i < action->queues_n; ++i) { + rxq = (*priv->rxqs)[action->queues[i]]; + /* + * In case of isolated mode we postpone + * ibv receive queue creation till the first + * rte_flow rule will be applied on that queue. + */ + if (!rxq->qp) { + assert(priv->isolated); + ret = rxq_create_qp(rxq, rxq->elts_n, + 0, 0, rxq_parent); + if (ret) { + rte_flow_error_set( + error, + ENOMEM, + RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, + "flow rule creation failure"); + goto error; + } + } + } + qp = action->queues_n > 1 ? rxq_parent->qp : rxq->qp; rte_flow->qp = qp; } rte_flow->ibv_attr = ibv_attr; + if (!priv->started) + return rte_flow; rte_flow->ibv_flow = ibv_create_flow(qp, rte_flow->ibv_attr); if (!rte_flow->ibv_flow) { rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, @@ -846,6 +1026,8 @@ priv_flow_create_action_queue(struct priv *priv, return rte_flow; error: + if (rxq_parent) + rxq_parent_cleanup(rxq_parent); rte_free(rte_flow); return NULL; } @@ -909,11 +1091,22 @@ priv_flow_create(struct priv *priv, continue; } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) { action.queue = 1; - action.queue_id = + action.queues_n = 1; + action.queues[0] = ((const struct rte_flow_action_queue *) actions->conf)->index; } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) { action.drop = 1; + } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { + unsigned int i; + const struct rte_flow_action_rss *rss = + (const struct rte_flow_action_rss *) + actions->conf; + + action.queue = 1; + action.queues_n = rss->num; + for (i = 0; i < rss->num; ++i) + action.queues[i] = rss->queue[i]; } else { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, @@ -957,6 +1150,43 @@ mlx4_flow_create(struct rte_eth_dev *dev, } /** + * @see rte_flow_isolate() + * + * Must be done before calling dev_configure(). + * + * @param dev + * Pointer to the ethernet device structure. + * @param enable + * Nonzero to enter isolated mode, attempt to leave it otherwise. + * @param[out] error + * Perform verbose error reporting if not NULL. PMDs initialize this + * structure in case of error only. + * + * @return + * 0 on success, a negative value on error. + */ +int +mlx4_flow_isolate(struct rte_eth_dev *dev, + int enable, + struct rte_flow_error *error) +{ + struct priv *priv = dev->data->dev_private; + + priv_lock(priv); + if (priv->rxqs) { + rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, "isolated mode must be set" + " before configuring the device"); + priv_unlock(priv); + return -rte_errno; + } + priv->isolated = !!enable; + priv_unlock(priv); + return 0; +} + +/** * Destroy a flow. * * @param priv diff --git a/drivers/net/mlx4/mlx4_flow.h b/drivers/net/mlx4/mlx4_flow.h index 12a293e4..beabcf2d 100644 --- a/drivers/net/mlx4/mlx4_flow.h +++ b/drivers/net/mlx4/mlx4_flow.h @@ -90,10 +90,16 @@ struct mlx4_flow { unsigned int offset; /**< Offset in bytes in the ibv_attr buffer. */ }; +int +mlx4_flow_isolate(struct rte_eth_dev *dev, + int enable, + struct rte_flow_error *error); + struct mlx4_flow_action { uint32_t drop:1; /**< Target is a drop queue. */ uint32_t queue:1; /**< Target is a receive queue. */ - uint32_t queue_id; /**< Identifier of the queue. */ + uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queue indices to use. */ + uint16_t queues_n; /**< Number of entries in queue[] */ }; int mlx4_priv_flow_start(struct priv *priv); |