/* SPDX-License-Identifier: BSD-3-Clause * Copyright 2018 Mellanox Technologies, Ltd */ #include #include #include #include #include /* Verbs header. */ /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ #ifdef PEDANTIC #pragma GCC diagnostic ignored "-Wpedantic" #endif #include #ifdef PEDANTIC #pragma GCC diagnostic error "-Wpedantic" #endif #include #include #include #include #include #include #include #include #include "mlx5.h" #include "mlx5_defs.h" #include "mlx5_prm.h" #include "mlx5_glue.h" #include "mlx5_flow.h" #define VERBS_SPEC_INNER(item_flags) \ (!!((item_flags) & MLX5_FLOW_LAYER_TUNNEL) ? IBV_FLOW_SPEC_INNER : 0) /** * Create Verbs flow counter with Verbs library. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in, out] counter * mlx5 flow counter object, contains the counter id, * handle of created Verbs flow counter is returned * in cs field (if counters are supported). * * @return * 0 On success else a negative errno value is returned * and rte_errno is set. */ static int flow_verbs_counter_create(struct rte_eth_dev *dev, struct mlx5_flow_counter *counter) { #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) struct priv *priv = dev->data->dev_private; struct ibv_counter_set_init_attr init = { .counter_set_id = counter->id}; counter->cs = mlx5_glue->create_counter_set(priv->ctx, &init); if (!counter->cs) { rte_errno = ENOTSUP; return -ENOTSUP; } return 0; #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) struct priv *priv = dev->data->dev_private; struct ibv_counters_init_attr init = {0}; struct ibv_counter_attach_attr attach; int ret; memset(&attach, 0, sizeof(attach)); counter->cs = mlx5_glue->create_counters(priv->ctx, &init); if (!counter->cs) { rte_errno = ENOTSUP; return -ENOTSUP; } attach.counter_desc = IBV_COUNTER_PACKETS; attach.index = 0; ret = mlx5_glue->attach_counters(counter->cs, &attach, NULL); if (!ret) { attach.counter_desc = IBV_COUNTER_BYTES; attach.index = 1; ret = mlx5_glue->attach_counters (counter->cs, &attach, NULL); } if (ret) { claim_zero(mlx5_glue->destroy_counters(counter->cs)); counter->cs = NULL; rte_errno = ret; return -ret; } return 0; #else (void)dev; (void)counter; rte_errno = ENOTSUP; return -ENOTSUP; #endif } /** * Get a flow counter. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] shared * Indicate if this counter is shared with other flows. * @param[in] id * Counter identifier. * * @return * A pointer to the counter, NULL otherwise and rte_errno is set. */ static struct mlx5_flow_counter * flow_verbs_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id) { struct priv *priv = dev->data->dev_private; struct mlx5_flow_counter *cnt; int ret; LIST_FOREACH(cnt, &priv->flow_counters, next) { if (!cnt->shared || cnt->shared != shared) continue; if (cnt->id != id) continue; cnt->ref_cnt++; return cnt; } cnt = rte_calloc(__func__, 1, sizeof(*cnt), 0); if (!cnt) { rte_errno = ENOMEM; return NULL; } cnt->id = id; cnt->shared = shared; cnt->ref_cnt = 1; cnt->hits = 0; cnt->bytes = 0; /* Create counter with Verbs. */ ret = flow_verbs_counter_create(dev, cnt); if (!ret) { LIST_INSERT_HEAD(&priv->flow_counters, cnt, next); return cnt; } /* Some error occurred in Verbs library. */ rte_free(cnt); rte_errno = -ret; return NULL; } /** * Release a flow counter. * * @param[in] counter * Pointer to the counter handler. */ static void flow_verbs_counter_release(struct mlx5_flow_counter *counter) { if (--counter->ref_cnt == 0) { #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) claim_zero(mlx5_glue->destroy_counter_set(counter->cs)); #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) claim_zero(mlx5_glue->destroy_counters(counter->cs)); #endif LIST_REMOVE(counter, next); rte_free(counter); } } /** * Query a flow counter via Verbs library call. * * @see rte_flow_query() * @see rte_flow_ops */ static int flow_verbs_counter_query(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow, void *data, struct rte_flow_error *error) { #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \ defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) if (flow->actions & MLX5_FLOW_ACTION_COUNT) { struct rte_flow_query_count *qc = data; uint64_t counters[2] = {0, 0}; #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) struct ibv_query_counter_set_attr query_cs_attr = { .cs = flow->counter->cs, .query_flags = IBV_COUNTER_SET_FORCE_UPDATE, }; struct ibv_counter_set_data query_out = { .out = counters, .outlen = 2 * sizeof(uint64_t), }; int err = mlx5_glue->query_counter_set(&query_cs_attr, &query_out); #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) int err = mlx5_glue->query_counters (flow->counter->cs, counters, RTE_DIM(counters), IBV_READ_COUNTERS_ATTR_PREFER_CACHED); #endif if (err) return rte_flow_error_set (error, err, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot read counter"); qc->hits_set = 1; qc->bytes_set = 1; qc->hits = counters[0] - flow->counter->hits; qc->bytes = counters[1] - flow->counter->bytes; if (qc->reset) { flow->counter->hits = counters[0]; flow->counter->bytes = counters[1]; } return 0; } return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "flow does not have counter"); #else (void)flow; (void)data; return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "counters are not available"); #endif } /** * Add a verbs item specification into @p verbs. * * @param[out] verbs * Pointer to verbs structure. * @param[in] src * Create specification. * @param[in] size * Size in bytes of the specification to copy. */ static void flow_verbs_spec_add(struct mlx5_flow_verbs *verbs, void *src, unsigned int size) { void *dst; if (!verbs) return; assert(verbs->specs); dst = (void *)(verbs->specs + verbs->size); memcpy(dst, src, size); ++verbs->attr->num_of_specs; verbs->size += size; } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_eth(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags) { const struct rte_flow_item_eth *spec = item->spec; const struct rte_flow_item_eth *mask = item->mask; const unsigned int size = sizeof(struct ibv_flow_spec_eth); struct ibv_flow_spec_eth eth = { .type = IBV_FLOW_SPEC_ETH | VERBS_SPEC_INNER(item_flags), .size = size, }; if (!mask) mask = &rte_flow_item_eth_mask; if (spec) { unsigned int i; memcpy(ð.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN); memcpy(ð.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN); eth.val.ether_type = spec->type; memcpy(ð.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN); memcpy(ð.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN); eth.mask.ether_type = mask->type; /* Remove unwanted bits from values. */ for (i = 0; i < ETHER_ADDR_LEN; ++i) { eth.val.dst_mac[i] &= eth.mask.dst_mac[i]; eth.val.src_mac[i] &= eth.mask.src_mac[i]; } eth.val.ether_type &= eth.mask.ether_type; } flow_verbs_spec_add(&dev_flow->verbs, ð, size); } /** * Update the VLAN tag in the Verbs Ethernet specification. * This function assumes that the input is valid and there is space to add * the requested item. * * @param[in, out] attr * Pointer to Verbs attributes structure. * @param[in] eth * Verbs structure containing the VLAN information to copy. */ static void flow_verbs_item_vlan_update(struct ibv_flow_attr *attr, struct ibv_flow_spec_eth *eth) { unsigned int i; const enum ibv_flow_spec_type search = eth->type; struct ibv_spec_header *hdr = (struct ibv_spec_header *) ((uint8_t *)attr + sizeof(struct ibv_flow_attr)); for (i = 0; i != attr->num_of_specs; ++i) { if (hdr->type == search) { struct ibv_flow_spec_eth *e = (struct ibv_flow_spec_eth *)hdr; e->val.vlan_tag = eth->val.vlan_tag; e->mask.vlan_tag = eth->mask.vlan_tag; e->val.ether_type = eth->val.ether_type; e->mask.ether_type = eth->mask.ether_type; break; } hdr = (struct ibv_spec_header *)((uint8_t *)hdr + hdr->size); } } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_vlan(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags) { const struct rte_flow_item_vlan *spec = item->spec; const struct rte_flow_item_vlan *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_eth); const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); struct ibv_flow_spec_eth eth = { .type = IBV_FLOW_SPEC_ETH | VERBS_SPEC_INNER(item_flags), .size = size, }; const uint32_t l2m = tunnel ? MLX5_FLOW_LAYER_INNER_L2 : MLX5_FLOW_LAYER_OUTER_L2; if (!mask) mask = &rte_flow_item_vlan_mask; if (spec) { eth.val.vlan_tag = spec->tci; eth.mask.vlan_tag = mask->tci; eth.val.vlan_tag &= eth.mask.vlan_tag; eth.val.ether_type = spec->inner_type; eth.mask.ether_type = mask->inner_type; eth.val.ether_type &= eth.mask.ether_type; } if (!(item_flags & l2m)) flow_verbs_spec_add(&dev_flow->verbs, ð, size); else flow_verbs_item_vlan_update(dev_flow->verbs.attr, ð); } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_ipv4(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags) { const struct rte_flow_item_ipv4 *spec = item->spec; const struct rte_flow_item_ipv4 *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_ipv4_ext); struct ibv_flow_spec_ipv4_ext ipv4 = { .type = IBV_FLOW_SPEC_IPV4_EXT | VERBS_SPEC_INNER(item_flags), .size = size, }; if (!mask) mask = &rte_flow_item_ipv4_mask; if (spec) { ipv4.val = (struct ibv_flow_ipv4_ext_filter){ .src_ip = spec->hdr.src_addr, .dst_ip = spec->hdr.dst_addr, .proto = spec->hdr.next_proto_id, .tos = spec->hdr.type_of_service, }; ipv4.mask = (struct ibv_flow_ipv4_ext_filter){ .src_ip = mask->hdr.src_addr, .dst_ip = mask->hdr.dst_addr, .proto = mask->hdr.next_proto_id, .tos = mask->hdr.type_of_service, }; /* Remove unwanted bits from values. */ ipv4.val.src_ip &= ipv4.mask.src_ip; ipv4.val.dst_ip &= ipv4.mask.dst_ip; ipv4.val.proto &= ipv4.mask.proto; ipv4.val.tos &= ipv4.mask.tos; } flow_verbs_spec_add(&dev_flow->verbs, &ipv4, size); } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_ipv6(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags) { const struct rte_flow_item_ipv6 *spec = item->spec; const struct rte_flow_item_ipv6 *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_ipv6); struct ibv_flow_spec_ipv6 ipv6 = { .type = IBV_FLOW_SPEC_IPV6 | VERBS_SPEC_INNER(item_flags), .size = size, }; if (!mask) mask = &rte_flow_item_ipv6_mask; if (spec) { unsigned int i; uint32_t vtc_flow_val; uint32_t vtc_flow_mask; memcpy(&ipv6.val.src_ip, spec->hdr.src_addr, RTE_DIM(ipv6.val.src_ip)); memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr, RTE_DIM(ipv6.val.dst_ip)); memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr, RTE_DIM(ipv6.mask.src_ip)); memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr, RTE_DIM(ipv6.mask.dst_ip)); vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow); vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow); ipv6.val.flow_label = rte_cpu_to_be_32((vtc_flow_val & IPV6_HDR_FL_MASK) >> IPV6_HDR_FL_SHIFT); ipv6.val.traffic_class = (vtc_flow_val & IPV6_HDR_TC_MASK) >> IPV6_HDR_TC_SHIFT; ipv6.val.next_hdr = spec->hdr.proto; ipv6.val.hop_limit = spec->hdr.hop_limits; ipv6.mask.flow_label = rte_cpu_to_be_32((vtc_flow_mask & IPV6_HDR_FL_MASK) >> IPV6_HDR_FL_SHIFT); ipv6.mask.traffic_class = (vtc_flow_mask & IPV6_HDR_TC_MASK) >> IPV6_HDR_TC_SHIFT; ipv6.mask.next_hdr = mask->hdr.proto; ipv6.mask.hop_limit = mask->hdr.hop_limits; /* Remove unwanted bits from values. */ for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) { ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i]; ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i]; } ipv6.val.flow_label &= ipv6.mask.flow_label; ipv6.val.traffic_class &= ipv6.mask.traffic_class; ipv6.val.next_hdr &= ipv6.mask.next_hdr; ipv6.val.hop_limit &= ipv6.mask.hop_limit; } flow_verbs_spec_add(&dev_flow->verbs, &ipv6, size); } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_tcp(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags __rte_unused) { const struct rte_flow_item_tcp *spec = item->spec; const struct rte_flow_item_tcp *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp); struct ibv_flow_spec_tcp_udp tcp = { .type = IBV_FLOW_SPEC_TCP | VERBS_SPEC_INNER(item_flags), .size = size, }; if (!mask) mask = &rte_flow_item_tcp_mask; if (spec) { tcp.val.dst_port = spec->hdr.dst_port; tcp.val.src_port = spec->hdr.src_port; tcp.mask.dst_port = mask->hdr.dst_port; tcp.mask.src_port = mask->hdr.src_port; /* Remove unwanted bits from values. */ tcp.val.src_port &= tcp.mask.src_port; tcp.val.dst_port &= tcp.mask.dst_port; } flow_verbs_spec_add(&dev_flow->verbs, &tcp, size); } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_udp(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags __rte_unused) { const struct rte_flow_item_udp *spec = item->spec; const struct rte_flow_item_udp *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp); struct ibv_flow_spec_tcp_udp udp = { .type = IBV_FLOW_SPEC_UDP | VERBS_SPEC_INNER(item_flags), .size = size, }; if (!mask) mask = &rte_flow_item_udp_mask; if (spec) { udp.val.dst_port = spec->hdr.dst_port; udp.val.src_port = spec->hdr.src_port; udp.mask.dst_port = mask->hdr.dst_port; udp.mask.src_port = mask->hdr.src_port; /* Remove unwanted bits from values. */ udp.val.src_port &= udp.mask.src_port; udp.val.dst_port &= udp.mask.dst_port; } flow_verbs_spec_add(&dev_flow->verbs, &udp, size); } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_vxlan(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags __rte_unused) { const struct rte_flow_item_vxlan *spec = item->spec; const struct rte_flow_item_vxlan *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_tunnel); struct ibv_flow_spec_tunnel vxlan = { .type = IBV_FLOW_SPEC_VXLAN_TUNNEL, .size = size, }; union vni { uint32_t vlan_id; uint8_t vni[4]; } id = { .vlan_id = 0, }; if (!mask) mask = &rte_flow_item_vxlan_mask; if (spec) { memcpy(&id.vni[1], spec->vni, 3); vxlan.val.tunnel_id = id.vlan_id; memcpy(&id.vni[1], mask->vni, 3); vxlan.mask.tunnel_id = id.vlan_id; /* Remove unwanted bits from values. */ vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; } flow_verbs_spec_add(&dev_flow->verbs, &vxlan, size); } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_vxlan_gpe(struct mlx5_flow *dev_flow, const struct rte_flow_item *item, uint64_t item_flags __rte_unused) { const struct rte_flow_item_vxlan_gpe *spec = item->spec; const struct rte_flow_item_vxlan_gpe *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_tunnel); struct ibv_flow_spec_tunnel vxlan_gpe = { .type = IBV_FLOW_SPEC_VXLAN_TUNNEL, .size = size, }; union vni { uint32_t vlan_id; uint8_t vni[4]; } id = { .vlan_id = 0, }; if (!mask) mask = &rte_flow_item_vxlan_gpe_mask; if (spec) { memcpy(&id.vni[1], spec->vni, 3); vxlan_gpe.val.tunnel_id = id.vlan_id; memcpy(&id.vni[1], mask->vni, 3); vxlan_gpe.mask.tunnel_id = id.vlan_id; /* Remove unwanted bits from values. */ vxlan_gpe.val.tunnel_id &= vxlan_gpe.mask.tunnel_id; } flow_verbs_spec_add(&dev_flow->verbs, &vxlan_gpe, size); } /** * Update the protocol in Verbs IPv4/IPv6 spec. * * @param[in, out] attr * Pointer to Verbs attributes structure. * @param[in] search * Specification type to search in order to update the IP protocol. * @param[in] protocol * Protocol value to set if none is present in the specification. */ static void flow_verbs_item_gre_ip_protocol_update(struct ibv_flow_attr *attr, enum ibv_flow_spec_type search, uint8_t protocol) { unsigned int i; struct ibv_spec_header *hdr = (struct ibv_spec_header *) ((uint8_t *)attr + sizeof(struct ibv_flow_attr)); if (!attr) return; for (i = 0; i != attr->num_of_specs; ++i) { if (hdr->type == search) { union { struct ibv_flow_spec_ipv4_ext *ipv4; struct ibv_flow_spec_ipv6 *ipv6; } ip; switch (search) { case IBV_FLOW_SPEC_IPV4_EXT: ip.ipv4 = (struct ibv_flow_spec_ipv4_ext *)hdr; if (!ip.ipv4->val.proto) { ip.ipv4->val.proto = protocol; ip.ipv4->mask.proto = 0xff; } break; case IBV_FLOW_SPEC_IPV6: ip.ipv6 = (struct ibv_flow_spec_ipv6 *)hdr; if (!ip.ipv6->val.next_hdr) { ip.ipv6->val.next_hdr = protocol; ip.ipv6->mask.next_hdr = 0xff; } break; default: break; } break; } hdr = (struct ibv_spec_header *)((uint8_t *)hdr + hdr->size); } } /** * Convert the @p item into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested item * into the flow. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_gre(struct mlx5_flow *dev_flow, const struct rte_flow_item *item __rte_unused, uint64_t item_flags) { struct mlx5_flow_verbs *verbs = &dev_flow->verbs; #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT unsigned int size = sizeof(struct ibv_flow_spec_tunnel); struct ibv_flow_spec_tunnel tunnel = { .type = IBV_FLOW_SPEC_VXLAN_TUNNEL, .size = size, }; #else const struct rte_flow_item_gre *spec = item->spec; const struct rte_flow_item_gre *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_gre); struct ibv_flow_spec_gre tunnel = { .type = IBV_FLOW_SPEC_GRE, .size = size, }; if (!mask) mask = &rte_flow_item_gre_mask; if (spec) { tunnel.val.c_ks_res0_ver = spec->c_rsvd0_ver; tunnel.val.protocol = spec->protocol; tunnel.mask.c_ks_res0_ver = mask->c_rsvd0_ver; tunnel.mask.protocol = mask->protocol; /* Remove unwanted bits from values. */ tunnel.val.c_ks_res0_ver &= tunnel.mask.c_ks_res0_ver; tunnel.val.protocol &= tunnel.mask.protocol; tunnel.val.key &= tunnel.mask.key; } #endif if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV4) flow_verbs_item_gre_ip_protocol_update(verbs->attr, IBV_FLOW_SPEC_IPV4_EXT, IPPROTO_GRE); else flow_verbs_item_gre_ip_protocol_update(verbs->attr, IBV_FLOW_SPEC_IPV6, IPPROTO_GRE); flow_verbs_spec_add(verbs, &tunnel, size); } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. This function also return the action that was added. * * @param[in, out] dev_flow * Pointer to dev_flow structure. * @param[in] item * Item specification. * @param[in] item_flags * Parsed item flags. */ static void flow_verbs_translate_item_mpls(struct mlx5_flow *dev_flow __rte_unused, const struct rte_flow_item *item __rte_unused, uint64_t item_flags __rte_unused) { #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT const struct rte_flow_item_mpls *spec = item->spec; const struct rte_flow_item_mpls *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_mpls); struct ibv_flow_spec_mpls mpls = { .type = IBV_FLOW_SPEC_MPLS, .size = size, }; if (!mask) mask = &rte_flow_item_mpls_mask; if (spec) { memcpy(&mpls.val.label, spec, sizeof(mpls.val.label)); memcpy(&mpls.mask.label, mask, sizeof(mpls.mask.label)); /* Remove unwanted bits from values. */ mpls.val.label &= mpls.mask.label; } flow_verbs_spec_add(&dev_flow->verbs, &mpls, size); #endif } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. * * @param[in] dev_flow * Pointer to mlx5_flow. * @param[in] action * Action configuration. */ static void flow_verbs_translate_action_drop (struct mlx5_flow *dev_flow, const struct rte_flow_action *action __rte_unused) { unsigned int size = sizeof(struct ibv_flow_spec_action_drop); struct ibv_flow_spec_action_drop drop = { .type = IBV_FLOW_SPEC_ACTION_DROP, .size = size, }; flow_verbs_spec_add(&dev_flow->verbs, &drop, size); } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. * * @param[in] dev_flow * Pointer to mlx5_flow. * @param[in] action * Action configuration. */ static void flow_verbs_translate_action_queue(struct mlx5_flow *dev_flow, const struct rte_flow_action *action) { const struct rte_flow_action_queue *queue = action->conf; struct rte_flow *flow = dev_flow->flow; if (flow->queue) (*flow->queue)[0] = queue->index; flow->rss.queue_num = 1; } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. * * @param[in] action * Action configuration. * @param[in, out] action_flags * Pointer to the detected actions. * @param[in] dev_flow * Pointer to mlx5_flow. */ static void flow_verbs_translate_action_rss(struct mlx5_flow *dev_flow, const struct rte_flow_action *action) { const struct rte_flow_action_rss *rss = action->conf; const uint8_t *rss_key; struct rte_flow *flow = dev_flow->flow; if (flow->queue) memcpy((*flow->queue), rss->queue, rss->queue_num * sizeof(uint16_t)); flow->rss.queue_num = rss->queue_num; /* NULL RSS key indicates default RSS key. */ rss_key = !rss->key ? rss_hash_default_key : rss->key; memcpy(flow->key, rss_key, MLX5_RSS_HASH_KEY_LEN); /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */ flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types; flow->rss.level = rss->level; } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. * * @param[in] dev_flow * Pointer to mlx5_flow. * @param[in] action * Action configuration. */ static void flow_verbs_translate_action_flag (struct mlx5_flow *dev_flow, const struct rte_flow_action *action __rte_unused) { unsigned int size = sizeof(struct ibv_flow_spec_action_tag); struct ibv_flow_spec_action_tag tag = { .type = IBV_FLOW_SPEC_ACTION_TAG, .size = size, .tag_id = mlx5_flow_mark_set(MLX5_FLOW_MARK_DEFAULT), }; flow_verbs_spec_add(&dev_flow->verbs, &tag, size); } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. * * @param[in] dev_flow * Pointer to mlx5_flow. * @param[in] action * Action configuration. */ static void flow_verbs_translate_action_mark(struct mlx5_flow *dev_flow, const struct rte_flow_action *action) { const struct rte_flow_action_mark *mark = action->conf; unsigned int size = sizeof(struct ibv_flow_spec_action_tag); struct ibv_flow_spec_action_tag tag = { .type = IBV_FLOW_SPEC_ACTION_TAG, .size = size, .tag_id = mlx5_flow_mark_set(mark->id), }; flow_verbs_spec_add(&dev_flow->verbs, &tag, size); } /** * Convert the @p action into a Verbs specification. This function assumes that * the input is valid and that there is space to insert the requested action * into the flow. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] action * Action configuration. * @param[in] dev_flow * Pointer to mlx5_flow. * @param[out] error * Pointer to error structure. * * @return * 0 On success else a negative errno value is returned and rte_errno is set. */ static int flow_verbs_translate_action_count(struct mlx5_flow *dev_flow, const struct rte_flow_action *action, struct rte_eth_dev *dev, struct rte_flow_error *error) { const struct rte_flow_action_count *count = action->conf; struct rte_flow *flow = dev_flow->flow; #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \ defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) unsigned int size = sizeof(struct ibv_flow_spec_counter_action); struct ibv_flow_spec_counter_action counter = { .type = IBV_FLOW_SPEC_ACTION_COUNT, .size = size, }; #endif if (!flow->counter) { flow->counter = flow_verbs_counter_new(dev, count->shared, count->id); if (!flow->counter) return rte_flow_error_set(error, rte_errno, RTE_FLOW_ERROR_TYPE_ACTION, action, "cannot get counter" " context."); } #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) counter.counter_set_handle = flow->counter->cs->handle; flow_verbs_spec_add(&dev_flow->verbs, &counter, size); #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) counter.counters = flow->counter->cs; flow_verbs_spec_add(&dev_flow->verbs, &counter, size); #endif return 0; } /** * Internal validation function. For validating both actions and items. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attr * Pointer to the flow attributes. * @param[in] items * Pointer to the list of items. * @param[in] actions * Pointer to the list of actions. * @param[out] error * Pointer to the error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int flow_verbs_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct rte_flow_error *error) { int ret; uint64_t action_flags = 0; uint64_t item_flags = 0; uint64_t last_item = 0; uint8_t next_protocol = 0xff; if (items == NULL) return -1; ret = mlx5_flow_validate_attributes(dev, attr, error); if (ret < 0) return ret; for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) { int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); int ret = 0; switch (items->type) { case RTE_FLOW_ITEM_TYPE_VOID: break; case RTE_FLOW_ITEM_TYPE_ETH: ret = mlx5_flow_validate_item_eth(items, item_flags, error); if (ret < 0) return ret; last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 : MLX5_FLOW_LAYER_OUTER_L2; break; case RTE_FLOW_ITEM_TYPE_VLAN: ret = mlx5_flow_validate_item_vlan(items, item_flags, error); if (ret < 0) return ret; last_item = tunnel ? (MLX5_FLOW_LAYER_INNER_L2 | MLX5_FLOW_LAYER_INNER_VLAN) : (MLX5_FLOW_LAYER_OUTER_L2 | MLX5_FLOW_LAYER_OUTER_VLAN); break; case RTE_FLOW_ITEM_TYPE_IPV4: ret = mlx5_flow_validate_item_ipv4(items, item_flags, error); if (ret < 0) return ret; last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 : MLX5_FLOW_LAYER_OUTER_L3_IPV4; if (items->mask != NULL && ((const struct rte_flow_item_ipv4 *) items->mask)->hdr.next_proto_id) { next_protocol = ((const struct rte_flow_item_ipv4 *) (items->spec))->hdr.next_proto_id; next_protocol &= ((const struct rte_flow_item_ipv4 *) (items->mask))->hdr.next_proto_id; } else { /* Reset for inner layer. */ next_protocol = 0xff; } break; case RTE_FLOW_ITEM_TYPE_IPV6: ret = mlx5_flow_validate_item_ipv6(items, item_flags, error); if (ret < 0) return ret; last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 : MLX5_FLOW_LAYER_OUTER_L3_IPV6; if (items->mask != NULL && ((const struct rte_flow_item_ipv6 *) items->mask)->hdr.proto) { next_protocol = ((const struct rte_flow_item_ipv6 *) items->spec)->hdr.proto; next_protocol &= ((const struct rte_flow_item_ipv6 *) items->mask)->hdr.proto; } else { /* Reset for inner layer. */ next_protocol = 0xff; } break; case RTE_FLOW_ITEM_TYPE_UDP: ret = mlx5_flow_validate_item_udp(items, item_flags, next_protocol, error); if (ret < 0) return ret; last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP : MLX5_FLOW_LAYER_OUTER_L4_UDP; break; case RTE_FLOW_ITEM_TYPE_TCP: ret = mlx5_flow_validate_item_tcp (items, item_flags, next_protocol, &rte_flow_item_tcp_mask, error); if (ret < 0) return ret; last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP : MLX5_FLOW_LAYER_OUTER_L4_TCP; break; case RTE_FLOW_ITEM_TYPE_VXLAN: ret = mlx5_flow_validate_item_vxlan(items, item_flags, error); if (ret < 0) return ret; last_item = MLX5_FLOW_LAYER_VXLAN; break; case RTE_FLOW_ITEM_TYPE_VXLAN_GPE: ret = mlx5_flow_validate_item_vxlan_gpe(items, item_flags, dev, error); if (ret < 0) return ret; last_item = MLX5_FLOW_LAYER_VXLAN_GPE; break; case RTE_FLOW_ITEM_TYPE_GRE: ret = mlx5_flow_validate_item_gre(items, item_flags, next_protocol, error); if (ret < 0) return ret; last_item = MLX5_FLOW_LAYER_GRE; break; case RTE_FLOW_ITEM_TYPE_MPLS: ret = mlx5_flow_validate_item_mpls(dev, items, item_flags, last_item, error); if (ret < 0) return ret; last_item = MLX5_FLOW_LAYER_MPLS; break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, NULL, "item not supported"); } item_flags |= last_item; } for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_VOID: break; case RTE_FLOW_ACTION_TYPE_FLAG: ret = mlx5_flow_validate_action_flag(action_flags, attr, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_FLAG; break; case RTE_FLOW_ACTION_TYPE_MARK: ret = mlx5_flow_validate_action_mark(actions, action_flags, attr, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_MARK; break; case RTE_FLOW_ACTION_TYPE_DROP: ret = mlx5_flow_validate_action_drop(action_flags, attr, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_DROP; break; case RTE_FLOW_ACTION_TYPE_QUEUE: ret = mlx5_flow_validate_action_queue(actions, action_flags, dev, attr, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_QUEUE; break; case RTE_FLOW_ACTION_TYPE_RSS: ret = mlx5_flow_validate_action_rss(actions, action_flags, dev, attr, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_RSS; break; case RTE_FLOW_ACTION_TYPE_COUNT: ret = mlx5_flow_validate_action_count(dev, attr, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_COUNT; break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "action not supported"); } } if (!(action_flags & MLX5_FLOW_FATE_ACTIONS)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "no fate action is found"); return 0; } /** * Calculate the required bytes that are needed for the action part of the verbs * flow. * * @param[in] actions * Pointer to the list of actions. * * @return * The size of the memory needed for all actions. */ static int flow_verbs_get_actions_size(const struct rte_flow_action actions[]) { int size = 0; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_VOID: break; case RTE_FLOW_ACTION_TYPE_FLAG: size += sizeof(struct ibv_flow_spec_action_tag); break; case RTE_FLOW_ACTION_TYPE_MARK: size += sizeof(struct ibv_flow_spec_action_tag); break; case RTE_FLOW_ACTION_TYPE_DROP: size += sizeof(struct ibv_flow_spec_action_drop); break; case RTE_FLOW_ACTION_TYPE_QUEUE: break; case RTE_FLOW_ACTION_TYPE_RSS: break; case RTE_FLOW_ACTION_TYPE_COUNT: #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \ defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) size += sizeof(struct ibv_flow_spec_counter_action); #endif break; default: break; } } return size; } /** * Calculate the required bytes that are needed for the item part of the verbs * flow. * * @param[in] items * Pointer to the list of items. * * @return * The size of the memory needed for all items. */ static int flow_verbs_get_items_size(const struct rte_flow_item items[]) { int size = 0; for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) { switch (items->type) { case RTE_FLOW_ITEM_TYPE_VOID: break; case RTE_FLOW_ITEM_TYPE_ETH: size += sizeof(struct ibv_flow_spec_eth); break; case RTE_FLOW_ITEM_TYPE_VLAN: size += sizeof(struct ibv_flow_spec_eth); break; case RTE_FLOW_ITEM_TYPE_IPV4: size += sizeof(struct ibv_flow_spec_ipv4_ext); break; case RTE_FLOW_ITEM_TYPE_IPV6: size += sizeof(struct ibv_flow_spec_ipv6); break; case RTE_FLOW_ITEM_TYPE_UDP: size += sizeof(struct ibv_flow_spec_tcp_udp); break; case RTE_FLOW_ITEM_TYPE_TCP: size += sizeof(struct ibv_flow_spec_tcp_udp); break; case RTE_FLOW_ITEM_TYPE_VXLAN: size += sizeof(struct ibv_flow_spec_tunnel); break; case RTE_FLOW_ITEM_TYPE_VXLAN_GPE: size += sizeof(struct ibv_flow_spec_tunnel); break; #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT case RTE_FLOW_ITEM_TYPE_GRE: size += sizeof(struct ibv_flow_spec_gre); break; case RTE_FLOW_ITEM_TYPE_MPLS: size += sizeof(struct ibv_flow_spec_mpls); break; #else case RTE_FLOW_ITEM_TYPE_GRE: size += sizeof(struct ibv_flow_spec_tunnel); break; #endif default: break; } } return size; } /** * Internal preparation function. Allocate mlx5_flow with the required size. * The required size is calculate based on the actions and items. This function * also returns the detected actions and items for later use. * * @param[in] attr * Pointer to the flow attributes. * @param[in] items * Pointer to the list of items. * @param[in] actions * Pointer to the list of actions. * @param[out] error * Pointer to the error structure. * * @return * Pointer to mlx5_flow object on success, otherwise NULL and rte_errno * is set. */ static struct mlx5_flow * flow_verbs_prepare(const struct rte_flow_attr *attr __rte_unused, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct rte_flow_error *error) { uint32_t size = sizeof(struct mlx5_flow) + sizeof(struct ibv_flow_attr); struct mlx5_flow *flow; size += flow_verbs_get_actions_size(actions); size += flow_verbs_get_items_size(items); flow = rte_calloc(__func__, 1, size, 0); if (!flow) { rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "not enough memory to create flow"); return NULL; } flow->verbs.attr = (void *)(flow + 1); flow->verbs.specs = (uint8_t *)(flow + 1) + sizeof(struct ibv_flow_attr); return flow; } /** * Fill the flow with verb spec. * * @param[in] dev * Pointer to Ethernet device. * @param[in, out] dev_flow * Pointer to the mlx5 flow. * @param[in] attr * Pointer to the flow attributes. * @param[in] items * Pointer to the list of items. * @param[in] actions * Pointer to the list of actions. * @param[out] error * Pointer to the error structure. * * @return * 0 on success, else a negative errno value otherwise and rte_ernno is set. */ static int flow_verbs_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct rte_flow_error *error) { struct rte_flow *flow = dev_flow->flow; uint64_t item_flags = 0; uint64_t action_flags = 0; uint64_t priority = attr->priority; uint32_t subpriority = 0; struct priv *priv = dev->data->dev_private; if (priority == MLX5_FLOW_PRIO_RSVD) priority = priv->config.flow_prio - 1; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { int ret; switch (actions->type) { case RTE_FLOW_ACTION_TYPE_VOID: break; case RTE_FLOW_ACTION_TYPE_FLAG: flow_verbs_translate_action_flag(dev_flow, actions); action_flags |= MLX5_FLOW_ACTION_FLAG; break; case RTE_FLOW_ACTION_TYPE_MARK: flow_verbs_translate_action_mark(dev_flow, actions); action_flags |= MLX5_FLOW_ACTION_MARK; break; case RTE_FLOW_ACTION_TYPE_DROP: flow_verbs_translate_action_drop(dev_flow, actions); action_flags |= MLX5_FLOW_ACTION_DROP; break; case RTE_FLOW_ACTION_TYPE_QUEUE: flow_verbs_translate_action_queue(dev_flow, actions); action_flags |= MLX5_FLOW_ACTION_QUEUE; break; case RTE_FLOW_ACTION_TYPE_RSS: flow_verbs_translate_action_rss(dev_flow, actions); action_flags |= MLX5_FLOW_ACTION_RSS; break; case RTE_FLOW_ACTION_TYPE_COUNT: ret = flow_verbs_translate_action_count(dev_flow, actions, dev, error); if (ret < 0) return ret; action_flags |= MLX5_FLOW_ACTION_COUNT; break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "action not supported"); } } flow->actions = action_flags; for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) { int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); switch (items->type) { case RTE_FLOW_ITEM_TYPE_VOID: break; case RTE_FLOW_ITEM_TYPE_ETH: flow_verbs_translate_item_eth(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L2; item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L2 : MLX5_FLOW_LAYER_OUTER_L2; break; case RTE_FLOW_ITEM_TYPE_VLAN: flow_verbs_translate_item_vlan(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L2; item_flags |= tunnel ? (MLX5_FLOW_LAYER_INNER_L2 | MLX5_FLOW_LAYER_INNER_VLAN) : (MLX5_FLOW_LAYER_OUTER_L2 | MLX5_FLOW_LAYER_OUTER_VLAN); break; case RTE_FLOW_ITEM_TYPE_IPV4: flow_verbs_translate_item_ipv4(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L3; dev_flow->verbs.hash_fields |= mlx5_flow_hashfields_adjust (dev_flow, tunnel, MLX5_IPV4_LAYER_TYPES, MLX5_IPV4_IBV_RX_HASH); item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 : MLX5_FLOW_LAYER_OUTER_L3_IPV4; break; case RTE_FLOW_ITEM_TYPE_IPV6: flow_verbs_translate_item_ipv6(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L3; dev_flow->verbs.hash_fields |= mlx5_flow_hashfields_adjust (dev_flow, tunnel, MLX5_IPV6_LAYER_TYPES, MLX5_IPV6_IBV_RX_HASH); item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 : MLX5_FLOW_LAYER_OUTER_L3_IPV6; break; case RTE_FLOW_ITEM_TYPE_TCP: flow_verbs_translate_item_tcp(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L4; dev_flow->verbs.hash_fields |= mlx5_flow_hashfields_adjust (dev_flow, tunnel, ETH_RSS_TCP, (IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP)); item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP : MLX5_FLOW_LAYER_OUTER_L4_TCP; break; case RTE_FLOW_ITEM_TYPE_UDP: flow_verbs_translate_item_udp(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L4; dev_flow->verbs.hash_fields |= mlx5_flow_hashfields_adjust (dev_flow, tunnel, ETH_RSS_UDP, (IBV_RX_HASH_SRC_PORT_UDP | IBV_RX_HASH_DST_PORT_UDP)); item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP : MLX5_FLOW_LAYER_OUTER_L4_UDP; break; case RTE_FLOW_ITEM_TYPE_VXLAN: flow_verbs_translate_item_vxlan(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L2; item_flags |= MLX5_FLOW_LAYER_VXLAN; break; case RTE_FLOW_ITEM_TYPE_VXLAN_GPE: flow_verbs_translate_item_vxlan_gpe(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L2; item_flags |= MLX5_FLOW_LAYER_VXLAN_GPE; break; case RTE_FLOW_ITEM_TYPE_GRE: flow_verbs_translate_item_gre(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L2; item_flags |= MLX5_FLOW_LAYER_GRE; break; case RTE_FLOW_ITEM_TYPE_MPLS: flow_verbs_translate_item_mpls(dev_flow, items, item_flags); subpriority = MLX5_PRIORITY_MAP_L2; item_flags |= MLX5_FLOW_LAYER_MPLS; break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, NULL, "item not supported"); } } dev_flow->layers = item_flags; dev_flow->verbs.attr->priority = mlx5_flow_adjust_priority(dev, priority, subpriority); return 0; } /** * Remove the flow from the NIC but keeps it in memory. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in, out] flow * Pointer to flow structure. */ static void flow_verbs_remove(struct rte_eth_dev *dev, struct rte_flow *flow) { struct mlx5_flow_verbs *verbs; struct mlx5_flow *dev_flow; if (!flow) return; LIST_FOREACH(dev_flow, &flow->dev_flows, next) { verbs = &dev_flow->verbs; if (verbs->flow) { claim_zero(mlx5_glue->destroy_flow(verbs->flow)); verbs->flow = NULL; } if (verbs->hrxq) { if (flow->actions & MLX5_FLOW_ACTION_DROP) mlx5_hrxq_drop_release(dev); else mlx5_hrxq_release(dev, verbs->hrxq); verbs->hrxq = NULL; } } } /** * Remove the flow from the NIC and the memory. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in, out] flow * Pointer to flow structure. */ static void flow_verbs_destroy(struct rte_eth_dev *dev, struct rte_flow *flow) { struct mlx5_flow *dev_flow; if (!flow) return; flow_verbs_remove(dev, flow); while (!LIST_EMPTY(&flow->dev_flows)) { dev_flow = LIST_FIRST(&flow->dev_flows); LIST_REMOVE(dev_flow, next); rte_free(dev_flow); } if (flow->counter) { flow_verbs_counter_release(flow->counter); flow->counter = NULL; } } /** * Apply the flow to the NIC. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in, out] flow * Pointer to flow structure. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int flow_verbs_apply(struct rte_eth_dev *dev, struct rte_flow *flow, struct rte_flow_error *error) { struct mlx5_flow_verbs *verbs; struct mlx5_flow *dev_flow; int err; LIST_FOREACH(dev_flow, &flow->dev_flows, next) { verbs = &dev_flow->verbs; if (flow->actions & MLX5_FLOW_ACTION_DROP) { verbs->hrxq = mlx5_hrxq_drop_new(dev); if (!verbs->hrxq) { rte_flow_error_set (error, errno, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot get drop hash queue"); goto error; } } else { struct mlx5_hrxq *hrxq; hrxq = mlx5_hrxq_get(dev, flow->key, MLX5_RSS_HASH_KEY_LEN, verbs->hash_fields, (*flow->queue), flow->rss.queue_num); if (!hrxq) hrxq = mlx5_hrxq_new(dev, flow->key, MLX5_RSS_HASH_KEY_LEN, verbs->hash_fields, (*flow->queue), flow->rss.queue_num, !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL)); if (!hrxq) { rte_flow_error_set (error, rte_errno, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot get hash queue"); goto error; } verbs->hrxq = hrxq; } verbs->flow = mlx5_glue->create_flow(verbs->hrxq->qp, verbs->attr); if (!verbs->flow) { rte_flow_error_set(error, errno, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "hardware refuses to create flow"); goto error; } } return 0; error: err = rte_errno; /* Save rte_errno before cleanup. */ LIST_FOREACH(dev_flow, &flow->dev_flows, next) { verbs = &dev_flow->verbs; if (verbs->hrxq) { if (flow->actions & MLX5_FLOW_ACTION_DROP) mlx5_hrxq_drop_release(dev); else mlx5_hrxq_release(dev, verbs->hrxq); verbs->hrxq = NULL; } } rte_errno = err; /* Restore rte_errno. */ return -rte_errno; } /** * Query a flow. * * @see rte_flow_query() * @see rte_flow_ops */ static int flow_verbs_query(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_action *actions, void *data, struct rte_flow_error *error) { int ret = -EINVAL; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_VOID: break; case RTE_FLOW_ACTION_TYPE_COUNT: ret = flow_verbs_counter_query(dev, flow, data, error); break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "action not supported"); } } return ret; } const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops = { .validate = flow_verbs_validate, .prepare = flow_verbs_prepare, .translate = flow_verbs_translate, .apply = flow_verbs_apply, .remove = flow_verbs_remove, .destroy = flow_verbs_destroy, .query = flow_verbs_query, };