New upstream version 18.02
[deb_dpdk.git] / drivers / net / mlx4 / mlx4_rxq.c
index 53313c5..7a036ed 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
  */
 
 /**
 #include <rte_byteorder.h>
 #include <rte_common.h>
 #include <rte_errno.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
 #include <rte_flow.h>
 #include <rte_malloc.h>
 #include <rte_mbuf.h>
 #include <rte_mempool.h>
 
 #include "mlx4.h"
+#include "mlx4_glue.h"
 #include "mlx4_flow.h"
 #include "mlx4_rxtx.h"
 #include "mlx4_utils.h"
@@ -231,7 +204,7 @@ mlx4_rss_attach(struct mlx4_rss *rss)
                }
                ind_tbl[i] = rxq->wq;
        }
-       rss->ind = ibv_create_rwq_ind_table
+       rss->ind = mlx4_glue->create_rwq_ind_table
                (priv->ctx,
                 &(struct ibv_rwq_ind_table_init_attr){
                        .log_ind_tbl_size = rte_log2_u32(RTE_DIM(ind_tbl)),
@@ -243,7 +216,7 @@ mlx4_rss_attach(struct mlx4_rss *rss)
                msg = "RSS indirection table creation failure";
                goto error;
        }
-       rss->qp = ibv_create_qp_ex
+       rss->qp = mlx4_glue->create_qp_ex
                (priv->ctx,
                 &(struct ibv_qp_init_attr_ex){
                        .comp_mask = (IBV_QP_INIT_ATTR_PD |
@@ -264,7 +237,7 @@ mlx4_rss_attach(struct mlx4_rss *rss)
                msg = "RSS hash QP creation failure";
                goto error;
        }
-       ret = ibv_modify_qp
+       ret = mlx4_glue->modify_qp
                (rss->qp,
                 &(struct ibv_qp_attr){
                        .qp_state = IBV_QPS_INIT,
@@ -275,7 +248,7 @@ mlx4_rss_attach(struct mlx4_rss *rss)
                msg = "failed to switch RSS hash QP to INIT state";
                goto error;
        }
-       ret = ibv_modify_qp
+       ret = mlx4_glue->modify_qp
                (rss->qp,
                 &(struct ibv_qp_attr){
                        .qp_state = IBV_QPS_RTR,
@@ -288,11 +261,11 @@ mlx4_rss_attach(struct mlx4_rss *rss)
        return 0;
 error:
        if (rss->qp) {
-               claim_zero(ibv_destroy_qp(rss->qp));
+               claim_zero(mlx4_glue->destroy_qp(rss->qp));
                rss->qp = NULL;
        }
        if (rss->ind) {
-               claim_zero(ibv_destroy_rwq_ind_table(rss->ind));
+               claim_zero(mlx4_glue->destroy_rwq_ind_table(rss->ind));
                rss->ind = NULL;
        }
        while (i--)
@@ -325,9 +298,9 @@ mlx4_rss_detach(struct mlx4_rss *rss)
        assert(rss->ind);
        if (--rss->usecnt)
                return;
-       claim_zero(ibv_destroy_qp(rss->qp));
+       claim_zero(mlx4_glue->destroy_qp(rss->qp));
        rss->qp = NULL;
-       claim_zero(ibv_destroy_rwq_ind_table(rss->ind));
+       claim_zero(mlx4_glue->destroy_rwq_ind_table(rss->ind));
        rss->ind = NULL;
        for (i = 0; i != rss->queues; ++i)
                mlx4_rxq_detach(priv->dev->data->rx_queues[rss->queue_id[i]]);
@@ -364,9 +337,10 @@ mlx4_rss_init(struct priv *priv)
        int ret;
 
        /* Prepare range for RSS contexts before creating the first WQ. */
-       ret = mlx4dv_set_context_attr(priv->ctx,
-                                     MLX4DV_SET_CTX_ATTR_LOG_WQS_RANGE_SZ,
-                                     &log2_range);
+       ret = mlx4_glue->dv_set_context_attr
+               (priv->ctx,
+                MLX4DV_SET_CTX_ATTR_LOG_WQS_RANGE_SZ,
+                &log2_range);
        if (ret) {
                ERROR("cannot set up range size for RSS context to %u"
                      " (for %u Rx queues), error: %s",
@@ -402,13 +376,13 @@ mlx4_rss_init(struct priv *priv)
                 * sequentially and are guaranteed to never be reused in the
                 * same context by the underlying implementation.
                 */
-               cq = ibv_create_cq(priv->ctx, 1, NULL, NULL, 0);
+               cq = mlx4_glue->create_cq(priv->ctx, 1, NULL, NULL, 0);
                if (!cq) {
                        ret = ENOMEM;
                        msg = "placeholder CQ creation failure";
                        goto error;
                }
-               wq = ibv_create_wq
+               wq = mlx4_glue->create_wq
                        (priv->ctx,
                         &(struct ibv_wq_init_attr){
                                .wq_type = IBV_WQT_RQ,
@@ -419,11 +393,11 @@ mlx4_rss_init(struct priv *priv)
                         });
                if (wq) {
                        wq_num = wq->wq_num;
-                       claim_zero(ibv_destroy_wq(wq));
+                       claim_zero(mlx4_glue->destroy_wq(wq));
                } else {
                        wq_num = 0; /* Shut up GCC 4.8 warnings. */
                }
-               claim_zero(ibv_destroy_cq(cq));
+               claim_zero(mlx4_glue->destroy_cq(cq));
                if (!wq) {
                        ret = ENOMEM;
                        msg = "placeholder WQ creation failure";
@@ -522,13 +496,14 @@ mlx4_rxq_attach(struct rxq *rxq)
        int ret;
 
        assert(rte_is_power_of_2(elts_n));
-       cq = ibv_create_cq(priv->ctx, elts_n / sges_n, NULL, rxq->channel, 0);
+       cq = mlx4_glue->create_cq(priv->ctx, elts_n / sges_n, NULL,
+                                 rxq->channel, 0);
        if (!cq) {
                ret = ENOMEM;
                msg = "CQ creation failure";
                goto error;
        }
-       wq = ibv_create_wq
+       wq = mlx4_glue->create_wq
                (priv->ctx,
                 &(struct ibv_wq_init_attr){
                        .wq_type = IBV_WQT_RQ,
@@ -542,7 +517,7 @@ mlx4_rxq_attach(struct rxq *rxq)
                msg = "WQ creation failure";
                goto error;
        }
-       ret = ibv_modify_wq
+       ret = mlx4_glue->modify_wq
                (wq,
                 &(struct ibv_wq_attr){
                        .attr_mask = IBV_WQ_ATTR_STATE,
@@ -557,7 +532,7 @@ mlx4_rxq_attach(struct rxq *rxq)
        mlxdv.cq.out = &dv_cq;
        mlxdv.rwq.in = wq;
        mlxdv.rwq.out = &dv_rwq;
-       ret = mlx4dv_init_obj(&mlxdv, MLX4DV_OBJ_RWQ | MLX4DV_OBJ_CQ);
+       ret = mlx4_glue->dv_init_obj(&mlxdv, MLX4DV_OBJ_RWQ | MLX4DV_OBJ_CQ);
        if (ret) {
                msg = "failed to obtain device information from WQ/CQ objects";
                goto error;
@@ -619,9 +594,9 @@ mlx4_rxq_attach(struct rxq *rxq)
        return 0;
 error:
        if (wq)
-               claim_zero(ibv_destroy_wq(wq));
+               claim_zero(mlx4_glue->destroy_wq(wq));
        if (cq)
-               claim_zero(ibv_destroy_cq(cq));
+               claim_zero(mlx4_glue->destroy_cq(cq));
        rte_errno = ret;
        ERROR("error while attaching Rx queue %p: %s: %s",
              (void *)rxq, msg, strerror(ret));
@@ -649,9 +624,9 @@ mlx4_rxq_detach(struct rxq *rxq)
        memset(&rxq->mcq, 0, sizeof(rxq->mcq));
        rxq->rq_db = NULL;
        rxq->wqes = NULL;
-       claim_zero(ibv_destroy_wq(rxq->wq));
+       claim_zero(mlx4_glue->destroy_wq(rxq->wq));
        rxq->wq = NULL;
-       claim_zero(ibv_destroy_cq(rxq->cq));
+       claim_zero(mlx4_glue->destroy_cq(rxq->cq));
        rxq->cq = NULL;
        DEBUG("%p: freeing Rx queue elements", (void *)rxq);
        for (i = 0; (i != RTE_DIM(*elts)); ++i) {
@@ -662,6 +637,64 @@ mlx4_rxq_detach(struct rxq *rxq)
        }
 }
 
+/**
+ * Returns the per-queue supported offloads.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ *
+ * @return
+ *   Supported Tx offloads.
+ */
+uint64_t
+mlx4_get_rx_queue_offloads(struct priv *priv)
+{
+       uint64_t offloads = DEV_RX_OFFLOAD_SCATTER |
+                           DEV_RX_OFFLOAD_CRC_STRIP;
+
+       if (priv->hw_csum)
+               offloads |= DEV_RX_OFFLOAD_CHECKSUM;
+       return offloads;
+}
+
+/**
+ * Returns the per-port supported offloads.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ *
+ * @return
+ *   Supported Rx offloads.
+ */
+uint64_t
+mlx4_get_rx_port_offloads(struct priv *priv)
+{
+       uint64_t offloads = DEV_RX_OFFLOAD_VLAN_FILTER;
+
+       (void)priv;
+       return offloads;
+}
+
+/**
+ * Checks if the per-queue offload configuration is valid.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ * @param requested
+ *   Per-queue offloads configuration.
+ *
+ * @return
+ *   Nonzero when configuration is valid.
+ */
+static int
+mlx4_check_rx_queue_offloads(struct priv *priv, uint64_t requested)
+{
+       uint64_t mandatory = priv->dev->data->dev_conf.rxmode.offloads;
+       uint64_t supported = mlx4_get_rx_port_offloads(priv);
+
+       return !((mandatory ^ requested) & supported);
+}
+
 /**
  * DPDK callback to configure a Rx queue.
  *
@@ -707,6 +740,16 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
        (void)conf; /* Thresholds configuration (ignored). */
        DEBUG("%p: configuring queue %u for %u descriptors",
              (void *)dev, idx, desc);
+       if (!mlx4_check_rx_queue_offloads(priv, conf->offloads)) {
+               rte_errno = ENOTSUP;
+               ERROR("%p: Rx queue offloads 0x%" PRIx64 " don't match port "
+                     "offloads 0x%" PRIx64 " or supported offloads 0x%" PRIx64,
+                     (void *)dev, conf->offloads,
+                     dev->data->dev_conf.rxmode.offloads,
+                     (mlx4_get_rx_port_offloads(priv) |
+                      mlx4_get_rx_queue_offloads(priv)));
+               return -rte_errno;
+       }
        if (idx >= dev->data->nb_rx_queues) {
                rte_errno = EOVERFLOW;
                ERROR("%p: queue index out of range (%u >= %u)",
@@ -746,10 +789,10 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
                .elts_n = rte_log2_u32(desc),
                .elts = elts,
                /* Toggle Rx checksum offload if hardware supports it. */
-               .csum = (priv->hw_csum &&
-                        dev->data->dev_conf.rxmode.hw_ip_checksum),
-               .csum_l2tun = (priv->hw_csum_l2tun &&
-                              dev->data->dev_conf.rxmode.hw_ip_checksum),
+               .csum = priv->hw_csum &&
+                       (conf->offloads & DEV_RX_OFFLOAD_CHECKSUM),
+               .csum_l2tun = priv->hw_csum_l2tun &&
+                             (conf->offloads & DEV_RX_OFFLOAD_CHECKSUM),
                .l2tun_offload = priv->hw_csum_l2tun,
                .stats = {
                        .idx = idx,
@@ -761,7 +804,7 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
        if (dev->data->dev_conf.rxmode.max_rx_pkt_len <=
            (mb_len - RTE_PKTMBUF_HEADROOM)) {
                ;
-       } else if (dev->data->dev_conf.rxmode.enable_scatter) {
+       } else if (conf->offloads & DEV_RX_OFFLOAD_SCATTER) {
                uint32_t size =
                        RTE_PKTMBUF_HEADROOM +
                        dev->data->dev_conf.rxmode.max_rx_pkt_len;
@@ -812,7 +855,7 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
                goto error;
        }
        if (dev->data->dev_conf.intr_conf.rxq) {
-               rxq->channel = ibv_create_comp_channel(priv->ctx);
+               rxq->channel = mlx4_glue->create_comp_channel(priv->ctx);
                if (rxq->channel == NULL) {
                        rte_errno = ENOMEM;
                        ERROR("%p: Rx interrupt completion channel creation"
@@ -867,7 +910,7 @@ mlx4_rx_queue_release(void *dpdk_rxq)
        assert(!rxq->wqes);
        assert(!rxq->rq_db);
        if (rxq->channel)
-               claim_zero(ibv_destroy_comp_channel(rxq->channel));
+               claim_zero(mlx4_glue->destroy_comp_channel(rxq->channel));
        if (rxq->mr)
                mlx4_mr_put(rxq->mr);
        rte_free(rxq);