net: add rte prefix to ether structures
[dpdk.git] / drivers / net / mlx4 / mlx4_flow.c
index 5c4bf8e..78bd452 100644 (file)
@@ -1,34 +1,6 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright 2017 6WIND S.A.
- *   Copyright 2017 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox Technologies, Ltd
  */
 
 /**
@@ -56,8 +28,7 @@
 
 #include <rte_byteorder.h>
 #include <rte_errno.h>
-#include <rte_eth_ctrl.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
 #include <rte_ether.h>
 #include <rte_flow.h>
 #include <rte_flow_driver.h>
@@ -65,6 +36,7 @@
 
 /* PMD headers. */
 #include "mlx4.h"
+#include "mlx4_glue.h"
 #include "mlx4_flow.h"
 #include "mlx4_rxtx.h"
 #include "mlx4_utils.h"
@@ -98,63 +70,98 @@ struct mlx4_flow_proc_item {
 struct mlx4_drop {
        struct ibv_qp *qp; /**< QP target. */
        struct ibv_cq *cq; /**< CQ associated with above QP. */
-       struct priv *priv; /**< Back pointer to private data. */
+       struct mlx4_priv *priv; /**< Back pointer to private data. */
        uint32_t refcnt; /**< Reference count. */
 };
 
 /**
- * Convert DPDK RSS hash fields to their Verbs equivalent.
+ * Convert supported RSS hash field types between DPDK and Verbs formats.
  *
- * @param rss_hf
- *   Hash fields in DPDK format (see struct rte_eth_rss_conf).
+ * This function returns the supported (default) set when @p types has
+ * special value 0.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ * @param types
+ *   Depending on @p verbs_to_dpdk, hash types in either DPDK (see struct
+ *   rte_eth_rss_conf) or Verbs format.
+ * @param verbs_to_dpdk
+ *   A zero value converts @p types from DPDK to Verbs, a nonzero value
+ *   performs the reverse operation.
  *
  * @return
- *   A valid Verbs RSS hash fields mask for mlx4 on success, (uint64_t)-1
- *   otherwise and rte_errno is set.
+ *   Converted RSS hash fields on success, (uint64_t)-1 otherwise and
+ *   rte_errno is set.
  */
-static uint64_t
-mlx4_conv_rss_hf(uint64_t rss_hf)
+uint64_t
+mlx4_conv_rss_types(struct mlx4_priv *priv, uint64_t types, int verbs_to_dpdk)
 {
-       enum { IPV4, IPV6, TCP, UDP, };
-       const uint64_t in[] = {
-               [IPV4] = (ETH_RSS_IPV4 |
-                         ETH_RSS_FRAG_IPV4 |
-                         ETH_RSS_NONFRAG_IPV4_TCP |
-                         ETH_RSS_NONFRAG_IPV4_UDP |
-                         ETH_RSS_NONFRAG_IPV4_OTHER),
-               [IPV6] = (ETH_RSS_IPV6 |
-                         ETH_RSS_FRAG_IPV6 |
-                         ETH_RSS_NONFRAG_IPV6_TCP |
-                         ETH_RSS_NONFRAG_IPV6_UDP |
-                         ETH_RSS_NONFRAG_IPV6_OTHER |
-                         ETH_RSS_IPV6_EX |
-                         ETH_RSS_IPV6_TCP_EX |
-                         ETH_RSS_IPV6_UDP_EX),
-               [TCP] = (ETH_RSS_NONFRAG_IPV4_TCP |
-                        ETH_RSS_NONFRAG_IPV6_TCP |
-                        ETH_RSS_IPV6_TCP_EX),
-               /*
-                * UDP support is temporarily disabled due to an
-                * implementation issue in the kernel.
-                */
+       enum {
+               INNER,
+               IPV4, IPV4_1, IPV4_2, IPV6, IPV6_1, IPV6_2, IPV6_3,
+               TCP, UDP,
+               IPV4_TCP, IPV4_UDP, IPV6_TCP, IPV6_TCP_1, IPV6_UDP, IPV6_UDP_1,
+       };
+       enum {
+               VERBS_IPV4 = IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4,
+               VERBS_IPV6 = IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6,
+               VERBS_TCP = IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP,
+               VERBS_UDP = IBV_RX_HASH_SRC_PORT_UDP | IBV_RX_HASH_DST_PORT_UDP,
+       };
+       static const uint64_t dpdk[] = {
+               [INNER] = 0,
+               [IPV4] = ETH_RSS_IPV4,
+               [IPV4_1] = ETH_RSS_FRAG_IPV4,
+               [IPV4_2] = ETH_RSS_NONFRAG_IPV4_OTHER,
+               [IPV6] = ETH_RSS_IPV6,
+               [IPV6_1] = ETH_RSS_FRAG_IPV6,
+               [IPV6_2] = ETH_RSS_NONFRAG_IPV6_OTHER,
+               [IPV6_3] = ETH_RSS_IPV6_EX,
+               [TCP] = 0,
                [UDP] = 0,
+               [IPV4_TCP] = ETH_RSS_NONFRAG_IPV4_TCP,
+               [IPV4_UDP] = ETH_RSS_NONFRAG_IPV4_UDP,
+               [IPV6_TCP] = ETH_RSS_NONFRAG_IPV6_TCP,
+               [IPV6_TCP_1] = ETH_RSS_IPV6_TCP_EX,
+               [IPV6_UDP] = ETH_RSS_NONFRAG_IPV6_UDP,
+               [IPV6_UDP_1] = ETH_RSS_IPV6_UDP_EX,
        };
-       const uint64_t out[RTE_DIM(in)] = {
-               [IPV4] = IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4,
-               [IPV6] = IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6,
-               [TCP] = IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP,
-               [UDP] = IBV_RX_HASH_SRC_PORT_UDP | IBV_RX_HASH_DST_PORT_UDP,
+       static const uint64_t verbs[RTE_DIM(dpdk)] = {
+               [INNER] = IBV_RX_HASH_INNER,
+               [IPV4] = VERBS_IPV4,
+               [IPV4_1] = VERBS_IPV4,
+               [IPV4_2] = VERBS_IPV4,
+               [IPV6] = VERBS_IPV6,
+               [IPV6_1] = VERBS_IPV6,
+               [IPV6_2] = VERBS_IPV6,
+               [IPV6_3] = VERBS_IPV6,
+               [TCP] = VERBS_TCP,
+               [UDP] = VERBS_UDP,
+               [IPV4_TCP] = VERBS_IPV4 | VERBS_TCP,
+               [IPV4_UDP] = VERBS_IPV4 | VERBS_UDP,
+               [IPV6_TCP] = VERBS_IPV6 | VERBS_TCP,
+               [IPV6_TCP_1] = VERBS_IPV6 | VERBS_TCP,
+               [IPV6_UDP] = VERBS_IPV6 | VERBS_UDP,
+               [IPV6_UDP_1] = VERBS_IPV6 | VERBS_UDP,
        };
+       const uint64_t *in = verbs_to_dpdk ? verbs : dpdk;
+       const uint64_t *out = verbs_to_dpdk ? dpdk : verbs;
        uint64_t seen = 0;
        uint64_t conv = 0;
        unsigned int i;
 
-       for (i = 0; i != RTE_DIM(in); ++i)
-               if (rss_hf & in[i]) {
-                       seen |= rss_hf & in[i];
+       if (!types) {
+               if (!verbs_to_dpdk)
+                       return priv->hw_rss_sup;
+               types = priv->hw_rss_sup;
+       }
+       for (i = 0; i != RTE_DIM(dpdk); ++i)
+               if (in[i] && (types & in[i]) == in[i]) {
+                       seen |= types & in[i];
                        conv |= out[i];
                }
-       if (!(rss_hf & ~seen))
+       if ((verbs_to_dpdk || (conv & priv->hw_rss_sup) == conv) &&
+           !(types & ~seen))
                return conv;
        rte_errno = ENOTSUP;
        return (uint64_t)-1;
@@ -197,9 +204,7 @@ mlx4_flow_merge_eth(struct rte_flow *flow,
        const char *msg;
        unsigned int i;
 
-       if (!mask) {
-               flow->promisc = 1;
-       } else {
+       if (mask) {
                uint32_t sum_dst = 0;
                uint32_t sum_src = 0;
 
@@ -241,6 +246,12 @@ mlx4_flow_merge_eth(struct rte_flow *flow,
                .type = IBV_FLOW_SPEC_ETH,
                .size = sizeof(*eth),
        };
+       if (!mask) {
+               eth->val.dst_mac[0] = 0xff;
+               flow->ibv_attr->type = IBV_FLOW_ATTR_ALL_DEFAULT;
+               flow->promisc = 1;
+               return 0;
+       }
        memcpy(eth->val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN);
        memcpy(eth->mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN);
        /* Remove unwanted bits from values. */
@@ -303,6 +314,8 @@ mlx4_flow_merge_vlan(struct rte_flow *flow,
        eth->val.vlan_tag = spec->tci;
        eth->mask.vlan_tag = mask->tci;
        eth->val.vlan_tag &= eth->mask.vlan_tag;
+       if (flow->ibv_attr->type == IBV_FLOW_ATTR_ALL_DEFAULT)
+               flow->ibv_attr->type = IBV_FLOW_ATTR_NORMAL;
        return 0;
 error:
        return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
@@ -379,6 +392,9 @@ error:
  * Additional mlx4-specific constraints on supported fields:
  *
  * - No support for partial masks.
+ * - Due to HW/FW limitation, flow rule priority is not taken into account
+ *   when matching UDP destination ports, doing is therefore only supported
+ *   at the highest priority level (0).
  *
  * @param[in, out] flow
  *   Flow rule handle to update.
@@ -404,12 +420,17 @@ mlx4_flow_merge_udp(struct rte_flow *flow,
        struct ibv_flow_spec_tcp_udp *udp;
        const char *msg;
 
-       if (!mask ||
+       if (mask &&
            ((uint16_t)(mask->hdr.src_port + 1) > UINT16_C(1) ||
             (uint16_t)(mask->hdr.dst_port + 1) > UINT16_C(1))) {
                msg = "mlx4 does not support matching partial UDP fields";
                goto error;
        }
+       if (mask && mask->hdr.dst_port && flow->priority) {
+               msg = "combining UDP destination port matching with a nonzero"
+                       " priority level is not supported";
+               goto error;
+       }
        if (!flow->ibv_attr)
                return 0;
        ++flow->ibv_attr->num_of_specs;
@@ -464,7 +485,7 @@ mlx4_flow_merge_tcp(struct rte_flow *flow,
        struct ibv_flow_spec_tcp_udp *tcp;
        const char *msg;
 
-       if (!mask ||
+       if (mask &&
            ((uint16_t)(mask->hdr.src_port + 1) > UINT16_C(1) ||
             (uint16_t)(mask->hdr.dst_port + 1) > UINT16_C(1))) {
                msg = "mlx4 does not support matching partial TCP fields";
@@ -641,7 +662,7 @@ static const struct mlx4_flow_proc_item mlx4_flow_proc_item_list[] = {
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-mlx4_flow_prepare(struct priv *priv,
+mlx4_flow_prepare(struct mlx4_priv *priv,
                  const struct rte_flow_attr *attr,
                  const struct rte_flow_item pattern[],
                  const struct rte_flow_action actions[],
@@ -654,6 +675,7 @@ mlx4_flow_prepare(struct priv *priv,
        struct rte_flow temp = { .ibv_attr_size = sizeof(*temp.ibv_attr) };
        struct rte_flow *flow = &temp;
        const char *msg = NULL;
+       int overlap;
 
        if (attr->group)
                return rte_flow_error_set
@@ -668,12 +690,18 @@ mlx4_flow_prepare(struct priv *priv,
                return rte_flow_error_set
                        (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
                         NULL, "egress is not supported");
+       if (attr->transfer)
+               return rte_flow_error_set
+                       (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
+                        NULL, "transfer is not supported");
        if (!attr->ingress)
                return rte_flow_error_set
                        (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
                         NULL, "only ingress is supported");
 fill:
+       overlap = 0;
        proc = mlx4_flow_proc_item_list;
+       flow->priority = attr->priority;
        /* Go over pattern. */
        for (item = pattern; item->type; ++item) {
                const struct mlx4_flow_proc_item *next = NULL;
@@ -719,14 +747,24 @@ fill:
        }
        /* Go over actions list. */
        for (action = actions; action->type; ++action) {
+               /* This one may appear anywhere multiple times. */
+               if (action->type == RTE_FLOW_ACTION_TYPE_VOID)
+                       continue;
+               /* Fate-deciding actions may appear exactly once. */
+               if (overlap) {
+                       msg = "cannot combine several fate-deciding actions,"
+                               " choose between DROP, QUEUE or RSS";
+                       goto exit_action_not_supported;
+               }
+               overlap = 1;
                switch (action->type) {
                        const struct rte_flow_action_queue *queue;
                        const struct rte_flow_action_rss *rss;
-                       const struct rte_eth_rss_conf *rss_conf;
+                       const uint8_t *rss_key;
+                       uint32_t rss_key_len;
+                       uint64_t fields;
                        unsigned int i;
 
-               case RTE_FLOW_ACTION_TYPE_VOID:
-                       continue;
                case RTE_FLOW_ACTION_TYPE_DROP:
                        flow->drop = 1;
                        break;
@@ -734,6 +772,11 @@ fill:
                        if (flow->rss)
                                break;
                        queue = action->conf;
+                       if (queue->index >= ETH_DEV(priv)->data->nb_rx_queues) {
+                               msg = "queue target index beyond number of"
+                                       " configured Rx queues";
+                               goto exit_action_not_supported;
+                       }
                        flow->rss = mlx4_rss_get
                                (priv, 0, mlx4_rss_hash_key_default, 1,
                                 &queue->index);
@@ -748,47 +791,68 @@ fill:
                                break;
                        rss = action->conf;
                        /* Default RSS configuration if none is provided. */
-                       rss_conf =
-                               rss->rss_conf ?
-                               rss->rss_conf :
-                               &(struct rte_eth_rss_conf){
-                                       .rss_key = mlx4_rss_hash_key_default,
-                                       .rss_key_len = MLX4_RSS_HASH_KEY_SIZE,
-                                       .rss_hf = (ETH_RSS_IPV4 |
-                                                  ETH_RSS_NONFRAG_IPV4_TCP |
-                                                  ETH_RSS_IPV6 |
-                                                  ETH_RSS_NONFRAG_IPV6_TCP),
-                               };
+                       if (rss->key_len) {
+                               rss_key = rss->key;
+                               rss_key_len = rss->key_len;
+                       } else {
+                               rss_key = mlx4_rss_hash_key_default;
+                               rss_key_len = MLX4_RSS_HASH_KEY_SIZE;
+                       }
                        /* Sanity checks. */
-                       if (!rte_is_power_of_2(rss->num)) {
+                       for (i = 0; i < rss->queue_num; ++i)
+                               if (rss->queue[i] >=
+                                   ETH_DEV(priv)->data->nb_rx_queues)
+                                       break;
+                       if (i != rss->queue_num) {
+                               msg = "queue index target beyond number of"
+                                       " configured Rx queues";
+                               goto exit_action_not_supported;
+                       }
+                       if (!rte_is_power_of_2(rss->queue_num)) {
                                msg = "for RSS, mlx4 requires the number of"
                                        " queues to be a power of two";
                                goto exit_action_not_supported;
                        }
-                       if (rss_conf->rss_key_len !=
-                           sizeof(flow->rss->key)) {
+                       if (rss_key_len != sizeof(flow->rss->key)) {
                                msg = "mlx4 supports exactly one RSS hash key"
                                        " length: "
                                        MLX4_STR_EXPAND(MLX4_RSS_HASH_KEY_SIZE);
                                goto exit_action_not_supported;
                        }
-                       for (i = 1; i < rss->num; ++i)
+                       for (i = 1; i < rss->queue_num; ++i)
                                if (rss->queue[i] - rss->queue[i - 1] != 1)
                                        break;
-                       if (i != rss->num) {
+                       if (i != rss->queue_num) {
                                msg = "mlx4 requires RSS contexts to use"
                                        " consecutive queue indices only";
                                goto exit_action_not_supported;
                        }
-                       if (rss->queue[0] % rss->num) {
+                       if (rss->queue[0] % rss->queue_num) {
                                msg = "mlx4 requires the first queue of a RSS"
                                        " context to be aligned on a multiple"
                                        " of the context size";
                                goto exit_action_not_supported;
                        }
+                       if (rss->func &&
+                           rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) {
+                               msg = "the only supported RSS hash function"
+                                       " is Toeplitz";
+                               goto exit_action_not_supported;
+                       }
+                       if (rss->level) {
+                               msg = "a nonzero RSS encapsulation level is"
+                                       " not supported";
+                               goto exit_action_not_supported;
+                       }
+                       rte_errno = 0;
+                       fields = mlx4_conv_rss_types(priv, rss->types, 0);
+                       if (fields == (uint64_t)-1 && rte_errno) {
+                               msg = "unsupported RSS hash type requested";
+                               goto exit_action_not_supported;
+                       }
                        flow->rss = mlx4_rss_get
-                               (priv, mlx4_conv_rss_hf(rss_conf->rss_hf),
-                                rss_conf->rss_key, rss->num, rss->queue);
+                               (priv, fields, rss_key, rss->queue_num,
+                                rss->queue);
                        if (!flow->rss) {
                                msg = "either invalid parameters or not enough"
                                        " resources for additional multi-queue"
@@ -800,10 +864,9 @@ fill:
                        goto exit_action_not_supported;
                }
        }
-       if (!flow->rss && !flow->drop)
-               return rte_flow_error_set
-                       (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
-                        NULL, "no valid action");
+       /* When fate is unknown, drop traffic. */
+       if (!overlap)
+               flow->drop = 1;
        /* Validation ends here. */
        if (!addr) {
                if (flow->rss)
@@ -825,11 +888,14 @@ fill:
                        },
                };
 
-               if (!mlx4_zmallocv(__func__, vec, RTE_DIM(vec)))
+               if (!mlx4_zmallocv(__func__, vec, RTE_DIM(vec))) {
+                       if (temp.rss)
+                               mlx4_rss_put(temp.rss);
                        return rte_flow_error_set
                                (error, -rte_errno,
                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
                                 "flow rule handle allocation failure");
+               }
                /* Most fields will be updated by second pass. */
                *flow = (struct rte_flow){
                        .ibv_attr = temp.ibv_attr,
@@ -867,7 +933,7 @@ mlx4_flow_validate(struct rte_eth_dev *dev,
                   const struct rte_flow_action actions[],
                   struct rte_flow_error *error)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct mlx4_priv *priv = dev->data->dev_private;
 
        return mlx4_flow_prepare(priv, attr, pattern, actions, error, NULL);
 }
@@ -883,7 +949,7 @@ mlx4_flow_validate(struct rte_eth_dev *dev,
  *   is set.
  */
 static struct mlx4_drop *
-mlx4_drop_get(struct priv *priv)
+mlx4_drop_get(struct mlx4_priv *priv)
 {
        struct mlx4_drop *drop = priv->drop;
 
@@ -900,24 +966,25 @@ mlx4_drop_get(struct priv *priv)
                .priv = priv,
                .refcnt = 1,
        };
-       drop->cq = ibv_create_cq(priv->ctx, 1, NULL, NULL, 0);
+       drop->cq = mlx4_glue->create_cq(priv->ctx, 1, NULL, NULL, 0);
        if (!drop->cq)
                goto error;
-       drop->qp = ibv_create_qp(priv->pd,
-                                &(struct ibv_qp_init_attr){
-                                       .send_cq = drop->cq,
-                                       .recv_cq = drop->cq,
-                                       .qp_type = IBV_QPT_RAW_PACKET,
-                                });
+       drop->qp = mlx4_glue->create_qp
+               (priv->pd,
+                &(struct ibv_qp_init_attr){
+                       .send_cq = drop->cq,
+                       .recv_cq = drop->cq,
+                       .qp_type = IBV_QPT_RAW_PACKET,
+                });
        if (!drop->qp)
                goto error;
        priv->drop = drop;
        return drop;
 error:
        if (drop->qp)
-               claim_zero(ibv_destroy_qp(drop->qp));
+               claim_zero(mlx4_glue->destroy_qp(drop->qp));
        if (drop->cq)
-               claim_zero(ibv_destroy_cq(drop->cq));
+               claim_zero(mlx4_glue->destroy_cq(drop->cq));
        if (drop)
                rte_free(drop);
        rte_errno = ENOMEM;
@@ -937,8 +1004,8 @@ mlx4_drop_put(struct mlx4_drop *drop)
        if (--drop->refcnt)
                return;
        drop->priv->drop = NULL;
-       claim_zero(ibv_destroy_qp(drop->qp));
-       claim_zero(ibv_destroy_cq(drop->cq));
+       claim_zero(mlx4_glue->destroy_qp(drop->qp));
+       claim_zero(mlx4_glue->destroy_cq(drop->cq));
        rte_free(drop);
 }
 
@@ -958,7 +1025,7 @@ mlx4_drop_put(struct mlx4_drop *drop)
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-mlx4_flow_toggle(struct priv *priv,
+mlx4_flow_toggle(struct mlx4_priv *priv,
                 struct rte_flow *flow,
                 int enable,
                 struct rte_flow_error *error)
@@ -970,7 +1037,7 @@ mlx4_flow_toggle(struct priv *priv,
        if (!enable) {
                if (!flow->ibv_flow)
                        return 0;
-               claim_zero(ibv_destroy_flow(flow->ibv_flow));
+               claim_zero(mlx4_glue->destroy_flow(flow->ibv_flow));
                flow->ibv_flow = NULL;
                if (flow->drop)
                        mlx4_drop_put(priv->drop);
@@ -983,7 +1050,7 @@ mlx4_flow_toggle(struct priv *priv,
            !priv->isolated &&
            flow->ibv_attr->priority == MLX4_FLOW_PRIORITY_LAST) {
                if (flow->ibv_flow) {
-                       claim_zero(ibv_destroy_flow(flow->ibv_flow));
+                       claim_zero(mlx4_glue->destroy_flow(flow->ibv_flow));
                        flow->ibv_flow = NULL;
                        if (flow->drop)
                                mlx4_drop_put(priv->drop);
@@ -1004,8 +1071,8 @@ mlx4_flow_toggle(struct priv *priv,
                /* Stop at the first nonexistent target queue. */
                for (i = 0; i != rss->queues; ++i)
                        if (rss->queue_id[i] >=
-                           priv->dev->data->nb_rx_queues ||
-                           !priv->dev->data->rx_queues[rss->queue_id[i]]) {
+                           ETH_DEV(priv)->data->nb_rx_queues ||
+                           !ETH_DEV(priv)->data->rx_queues[rss->queue_id[i]]) {
                                missing = 1;
                                break;
                        }
@@ -1013,7 +1080,7 @@ mlx4_flow_toggle(struct priv *priv,
                        if (missing ^ !flow->drop)
                                return 0;
                        /* Verbs flow needs updating. */
-                       claim_zero(ibv_destroy_flow(flow->ibv_flow));
+                       claim_zero(mlx4_glue->destroy_flow(flow->ibv_flow));
                        flow->ibv_flow = NULL;
                        if (flow->drop)
                                mlx4_drop_put(priv->drop);
@@ -1034,6 +1101,8 @@ mlx4_flow_toggle(struct priv *priv,
                flow->drop = missing;
        }
        if (flow->drop) {
+               if (flow->ibv_flow)
+                       return 0;
                mlx4_drop_get(priv);
                if (!priv->drop) {
                        err = rte_errno;
@@ -1045,7 +1114,7 @@ mlx4_flow_toggle(struct priv *priv,
        assert(qp);
        if (flow->ibv_flow)
                return 0;
-       flow->ibv_flow = ibv_create_flow(qp, flow->ibv_attr);
+       flow->ibv_flow = mlx4_glue->create_flow(qp, flow->ibv_attr);
        if (flow->ibv_flow)
                return 0;
        if (flow->drop)
@@ -1072,7 +1141,7 @@ mlx4_flow_create(struct rte_eth_dev *dev,
                 const struct rte_flow_action actions[],
                 struct rte_flow_error *error)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct mlx4_priv *priv = dev->data->dev_private;
        struct rte_flow *flow;
        int err;
 
@@ -1113,7 +1182,7 @@ mlx4_flow_isolate(struct rte_eth_dev *dev,
                  int enable,
                  struct rte_flow_error *error)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct mlx4_priv *priv = dev->data->dev_private;
 
        if (!!enable == !!priv->isolated)
                return 0;
@@ -1136,7 +1205,7 @@ mlx4_flow_destroy(struct rte_eth_dev *dev,
                  struct rte_flow *flow,
                  struct rte_flow_error *error)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct mlx4_priv *priv = dev->data->dev_private;
        int err = mlx4_flow_toggle(priv, flow, 0, error);
 
        if (err)
@@ -1160,7 +1229,7 @@ static int
 mlx4_flow_flush(struct rte_eth_dev *dev,
                struct rte_flow_error *error)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct mlx4_priv *priv = dev->data->dev_private;
        struct rte_flow *flow = LIST_FIRST(&priv->flows);
 
        while (flow) {
@@ -1185,10 +1254,10 @@ mlx4_flow_flush(struct rte_eth_dev *dev,
  *   Next configured VLAN ID or a high value (>= 4096) if there is none.
  */
 static uint16_t
-mlx4_flow_internal_next_vlan(struct priv *priv, uint16_t vlan)
+mlx4_flow_internal_next_vlan(struct mlx4_priv *priv, uint16_t vlan)
 {
        while (vlan < 4096) {
-               if (priv->dev->data->vlan_filter_conf.ids[vlan / 64] &
+               if (ETH_DEV(priv)->data->vlan_filter_conf.ids[vlan / 64] &
                    (UINT64_C(1) << (vlan % 64)))
                        return vlan;
                ++vlan;
@@ -1201,16 +1270,19 @@ mlx4_flow_internal_next_vlan(struct priv *priv, uint16_t vlan)
  *
  * Various flow rules are created depending on the mode the device is in:
  *
- * 1. Promiscuous: port MAC + catch-all (VLAN filtering is ignored).
- * 2. All multicast: port MAC/VLAN + catch-all multicast.
- * 3. Otherwise: port MAC/VLAN + broadcast MAC/VLAN.
+ * 1. Promiscuous:
+ *       port MAC + broadcast + catch-all (VLAN filtering is ignored).
+ * 2. All multicast:
+ *       port MAC/VLAN + broadcast + catch-all multicast.
+ * 3. Otherwise:
+ *       port MAC/VLAN + broadcast MAC/VLAN.
  *
  * About MAC flow rules:
  *
  * - MAC flow rules are generated from @p dev->data->mac_addrs
  *   (@p priv->mac array).
  * - An additional flow rule for Ethernet broadcasts is also generated.
- * - All these are per-VLAN if @p dev->data->dev_conf.rxmode.hw_vlan_filter
+ * - All these are per-VLAN if @p DEV_RX_OFFLOAD_VLAN_FILTER
  *   is enabled and VLAN filters are configured.
  *
  * @param priv
@@ -1222,7 +1294,7 @@ mlx4_flow_internal_next_vlan(struct priv *priv, uint16_t vlan)
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-mlx4_flow_internal(struct priv *priv, struct rte_flow_error *error)
+mlx4_flow_internal(struct mlx4_priv *priv, struct rte_flow_error *error)
 {
        struct rte_flow_attr attr = {
                .priority = MLX4_FLOW_PRIORITY_LAST,
@@ -1262,41 +1334,44 @@ mlx4_flow_internal(struct priv *priv, struct rte_flow_error *error)
         * get RSS by default.
         */
        uint32_t queues =
-               rte_align32pow2(priv->dev->data->nb_rx_queues + 1) >> 1;
-       alignas(struct rte_flow_action_rss) uint8_t rss_conf_data
-               [offsetof(struct rte_flow_action_rss, queue) +
-                sizeof(((struct rte_flow_action_rss *)0)->queue[0]) * queues];
-       struct rte_flow_action_rss *rss_conf = (void *)rss_conf_data;
+               rte_align32pow2(ETH_DEV(priv)->data->nb_rx_queues + 1) >> 1;
+       uint16_t queue[queues];
+       struct rte_flow_action_rss action_rss = {
+               .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
+               .level = 0,
+               .types = 0,
+               .key_len = MLX4_RSS_HASH_KEY_SIZE,
+               .queue_num = queues,
+               .key = mlx4_rss_hash_key_default,
+               .queue = queue,
+       };
        struct rte_flow_action actions[] = {
                {
                        .type = RTE_FLOW_ACTION_TYPE_RSS,
-                       .conf = rss_conf,
+                       .conf = &action_rss,
                },
                {
                        .type = RTE_FLOW_ACTION_TYPE_END,
                },
        };
-       struct ether_addr *rule_mac = &eth_spec.dst;
+       struct rte_ether_addr *rule_mac = &eth_spec.dst;
        rte_be16_t *rule_vlan =
-               priv->dev->data->dev_conf.rxmode.hw_vlan_filter &&
-               !priv->dev->data->promiscuous ?
+               (ETH_DEV(priv)->data->dev_conf.rxmode.offloads &
+                DEV_RX_OFFLOAD_VLAN_FILTER) &&
+               !ETH_DEV(priv)->data->promiscuous ?
                &vlan_spec.tci :
                NULL;
-       int broadcast =
-               !priv->dev->data->promiscuous &&
-               !priv->dev->data->all_multicast;
        uint16_t vlan = 0;
        struct rte_flow *flow;
        unsigned int i;
        int err = 0;
 
+       /* Nothing to be done if there are no Rx queues. */
+       if (!queues)
+               goto error;
        /* Prepare default RSS configuration. */
-       *rss_conf = (struct rte_flow_action_rss){
-               .rss_conf = NULL, /* Rely on default fallback settings. */
-               .num = queues,
-       };
        for (i = 0; i != queues; ++i)
-               rss_conf->queue[i] = i;
+               queue[i] = i;
        /*
         * Set up VLAN item if filtering is enabled and at least one VLAN
         * filter is configured.
@@ -1315,8 +1390,8 @@ next_vlan:
                        rule_vlan = NULL;
                }
        }
-       for (i = 0; i != RTE_DIM(priv->mac) + broadcast; ++i) {
-               const struct ether_addr *mac;
+       for (i = 0; i != RTE_DIM(priv->mac) + 1; ++i) {
+               const struct rte_ether_addr *mac;
 
                /* Broadcasts are handled by an extra iteration. */
                if (i < RTE_DIM(priv->mac))
@@ -1339,6 +1414,7 @@ next_vlan:
                        assert(flow->ibv_attr->type == IBV_FLOW_ATTR_NORMAL);
                        assert(flow->ibv_attr->num_of_specs == 1);
                        assert(eth->type == IBV_FLOW_SPEC_ETH);
+                       assert(flow->rss);
                        if (rule_vlan &&
                            (eth->val.vlan_tag != *rule_vlan ||
                             eth->mask.vlan_tag != RTE_BE16(0x0fff)))
@@ -1351,13 +1427,18 @@ next_vlan:
                                    eth->val.src_mac[j] != UINT8_C(0x00) ||
                                    eth->mask.src_mac[j] != UINT8_C(0x00))
                                        break;
-                       if (j == sizeof(mac->addr_bytes))
-                               break;
+                       if (j != sizeof(mac->addr_bytes))
+                               continue;
+                       if (flow->rss->queues != queues ||
+                           memcmp(flow->rss->queue_id, action_rss.queue,
+                                  queues * sizeof(flow->rss->queue_id[0])))
+                               continue;
+                       break;
                }
                if (!flow || !flow->internal) {
                        /* Not found, create a new flow rule. */
                        memcpy(rule_mac, mac, sizeof(*mac));
-                       flow = mlx4_flow_create(priv->dev, &attr, pattern,
+                       flow = mlx4_flow_create(ETH_DEV(priv), &attr, pattern,
                                                actions, error);
                        if (!flow) {
                                err = -rte_errno;
@@ -1373,31 +1454,39 @@ next_vlan:
                        goto next_vlan;
        }
        /* Take care of promiscuous and all multicast flow rules. */
-       if (!broadcast) {
+       if (ETH_DEV(priv)->data->promiscuous ||
+           ETH_DEV(priv)->data->all_multicast) {
                for (flow = LIST_FIRST(&priv->flows);
                     flow && flow->internal;
                     flow = LIST_NEXT(flow, next)) {
-                       if (priv->dev->data->promiscuous) {
+                       if (ETH_DEV(priv)->data->promiscuous) {
                                if (flow->promisc)
                                        break;
                        } else {
-                               assert(priv->dev->data->all_multicast);
+                               assert(ETH_DEV(priv)->data->all_multicast);
                                if (flow->allmulti)
                                        break;
                        }
                }
+               if (flow && flow->internal) {
+                       assert(flow->rss);
+                       if (flow->rss->queues != queues ||
+                           memcmp(flow->rss->queue_id, action_rss.queue,
+                                  queues * sizeof(flow->rss->queue_id[0])))
+                               flow = NULL;
+               }
                if (!flow || !flow->internal) {
                        /* Not found, create a new flow rule. */
-                       if (priv->dev->data->promiscuous) {
+                       if (ETH_DEV(priv)->data->promiscuous) {
                                pattern[1].spec = NULL;
                                pattern[1].mask = NULL;
                        } else {
-                               assert(priv->dev->data->all_multicast);
+                               assert(ETH_DEV(priv)->data->all_multicast);
                                pattern[1].spec = &eth_allmulti;
                                pattern[1].mask = &eth_allmulti;
                        }
                        pattern[2] = pattern[3];
-                       flow = mlx4_flow_create(priv->dev, &attr, pattern,
+                       flow = mlx4_flow_create(ETH_DEV(priv), &attr, pattern,
                                                actions, error);
                        if (!flow) {
                                err = -rte_errno;
@@ -1414,7 +1503,8 @@ error:
                struct rte_flow *next = LIST_NEXT(flow, next);
 
                if (!flow->select)
-                       claim_zero(mlx4_flow_destroy(priv->dev, flow, error));
+                       claim_zero(mlx4_flow_destroy(ETH_DEV(priv), flow,
+                                                    error));
                else
                        flow->select = 0;
                flow = next;
@@ -1438,7 +1528,7 @@ error:
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 int
-mlx4_flow_sync(struct priv *priv, struct rte_flow_error *error)
+mlx4_flow_sync(struct mlx4_priv *priv, struct rte_flow_error *error)
 {
        struct rte_flow *flow;
        int ret;
@@ -1452,7 +1542,8 @@ mlx4_flow_sync(struct priv *priv, struct rte_flow_error *error)
                for (flow = LIST_FIRST(&priv->flows);
                     flow && flow->internal;
                     flow = LIST_FIRST(&priv->flows))
-                       claim_zero(mlx4_flow_destroy(priv->dev, flow, error));
+                       claim_zero(mlx4_flow_destroy(ETH_DEV(priv), flow,
+                                                    error));
        } else {
                /* Refresh internal rules. */
                ret = mlx4_flow_internal(priv, error);
@@ -1460,9 +1551,7 @@ mlx4_flow_sync(struct priv *priv, struct rte_flow_error *error)
                        return ret;
        }
        /* Toggle the remaining flow rules . */
-       for (flow = LIST_FIRST(&priv->flows);
-            flow;
-            flow = LIST_NEXT(flow, next)) {
+       LIST_FOREACH(flow, &priv->flows, next) {
                ret = mlx4_flow_toggle(priv, flow, priv->started, error);
                if (ret)
                        return ret;
@@ -1482,12 +1571,12 @@ mlx4_flow_sync(struct priv *priv, struct rte_flow_error *error)
  *   Pointer to private structure.
  */
 void
-mlx4_flow_clean(struct priv *priv)
+mlx4_flow_clean(struct mlx4_priv *priv)
 {
        struct rte_flow *flow;
 
        while ((flow = LIST_FIRST(&priv->flows)))
-               mlx4_flow_destroy(priv->dev, flow, NULL);
+               mlx4_flow_destroy(ETH_DEV(priv), flow, NULL);
        assert(LIST_EMPTY(&priv->rss));
 }