-/*-
- * 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 <stddef.h>
#include <stdint.h>
#include <string.h>
+#include <inttypes.h>
/* Verbs headers do not support -pedantic. */
#ifdef PEDANTIC
#include <rte_common.h>
#include <rte_errno.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_malloc.h>
#include <rte_mbuf.h>
#include <rte_mempool.h>
#include "mlx4.h"
-#include "mlx4_autoconf.h"
+#include "mlx4_glue.h"
#include "mlx4_prm.h"
#include "mlx4_rxtx.h"
#include "mlx4_utils.h"
unsigned int elts_head = txq->elts_head;
unsigned int elts_tail = txq->elts_tail;
struct txq_elt (*elts)[txq->elts_n] = txq->elts;
+ unsigned int elts_m = txq->elts_n - 1;
DEBUG("%p: freeing WRs", (void *)txq);
while (elts_tail != elts_head) {
- struct txq_elt *elt = &(*elts)[elts_tail];
+ struct txq_elt *elt = &(*elts)[elts_tail++ & elts_m];
assert(elt->buf != NULL);
rte_pktmbuf_free(elt->buf);
elt->buf = NULL;
- if (++elts_tail == RTE_DIM(*elts))
- elts_tail = 0;
+ elt->wqe = NULL;
}
txq->elts_tail = txq->elts_head;
}
struct mlx4_cq *cq = &txq->mcq;
struct mlx4dv_qp *dqp = mlxdv->qp.out;
struct mlx4dv_cq *dcq = mlxdv->cq.out;
- uint32_t sq_size = (uint32_t)dqp->rq.offset - (uint32_t)dqp->sq.offset;
- sq->buf = (uint8_t *)dqp->buf.buf + dqp->sq.offset;
/* Total length, including headroom and spare WQEs. */
- sq->eob = sq->buf + sq_size;
- sq->head = 0;
- sq->tail = 0;
- sq->txbb_cnt =
- (dqp->sq.wqe_cnt << dqp->sq.wqe_shift) >> MLX4_TXBB_SHIFT;
- sq->txbb_cnt_mask = sq->txbb_cnt - 1;
+ sq->size = (uint32_t)dqp->rq.offset - (uint32_t)dqp->sq.offset;
+ sq->buf = (uint8_t *)dqp->buf.buf + dqp->sq.offset;
+ sq->eob = sq->buf + sq->size;
+ uint32_t headroom_size = 2048 + (1 << dqp->sq.wqe_shift);
+ /* Continuous headroom size bytes must always stay freed. */
+ sq->remain_size = sq->size - headroom_size;
+ sq->owner_opcode = MLX4_OPCODE_SEND | (0 << MLX4_SQ_OWNER_BIT);
+ sq->stamp = rte_cpu_to_be_32(MLX4_SQ_STAMP_VAL |
+ (0 << MLX4_SQ_OWNER_BIT));
sq->db = dqp->sdb;
sq->doorbell_qpn = dqp->doorbell_qpn;
- sq->headroom_txbbs =
- (2048 + (1 << dqp->sq.wqe_shift)) >> MLX4_TXBB_SHIFT;
cq->buf = dcq->buf.buf;
cq->cqe_cnt = dcq->cqe_cnt;
cq->set_ci_db = dcq->set_ci_db;
cq->cqe_64 = (dcq->cqe_size & 64) ? 1 : 0;
}
+/**
+ * Returns the per-port supported offloads.
+ *
+ * @param priv
+ * Pointer to private structure.
+ *
+ * @return
+ * Supported Tx offloads.
+ */
+uint64_t
+mlx4_get_tx_port_offloads(struct priv *priv)
+{
+ uint64_t offloads = DEV_TX_OFFLOAD_MULTI_SEGS;
+
+ if (priv->hw_csum) {
+ offloads |= (DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM);
+ }
+ if (priv->hw_csum_l2tun)
+ offloads |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
+ 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_tx_queue_offloads(struct priv *priv, uint64_t requested)
+{
+ uint64_t mandatory = priv->dev->data->dev_conf.txmode.offloads;
+ uint64_t supported = mlx4_get_tx_port_offloads(priv);
+
+ return !((mandatory ^ requested) & supported);
+}
+
/**
* DPDK callback to configure a Tx queue.
*
struct mlx4dv_obj mlxdv;
struct mlx4dv_qp dv_qp;
struct mlx4dv_cq dv_cq;
- struct txq_elt (*elts)[desc];
+ struct txq_elt (*elts)[rte_align32pow2(desc)];
struct ibv_qp_init_attr qp_init_attr;
struct txq *txq;
uint8_t *bounce_buf;
};
int ret;
- (void)conf; /* Thresholds configuration (ignored). */
DEBUG("%p: configuring queue %u for %u descriptors",
(void *)dev, idx, desc);
+ /*
+ * Don't verify port offloads for application which
+ * use the old API.
+ */
+ if ((conf->txq_flags & ETH_TXQ_FLAGS_IGNORE) &&
+ !mlx4_check_tx_queue_offloads(priv, conf->offloads)) {
+ rte_errno = ENOTSUP;
+ ERROR("%p: Tx queue offloads 0x%" PRIx64 " don't match port "
+ "offloads 0x%" PRIx64 " or supported offloads 0x%" PRIx64,
+ (void *)dev, conf->offloads,
+ dev->data->dev_conf.txmode.offloads,
+ mlx4_get_tx_port_offloads(priv));
+ return -rte_errno;
+ }
if (idx >= dev->data->nb_tx_queues) {
rte_errno = EOVERFLOW;
ERROR("%p: queue index out of range (%u >= %u)",
ERROR("%p: invalid number of Tx descriptors", (void *)dev);
return -rte_errno;
}
+ if (desc != RTE_DIM(*elts)) {
+ desc = RTE_DIM(*elts);
+ WARN("%p: increased number of descriptors in Tx queue %u"
+ " to the next power of two (%u)",
+ (void *)dev, idx, desc);
+ }
/* Allocate and initialize Tx queue. */
mlx4_zmallocv_socket("TXQ", vec, RTE_DIM(vec), socket);
if (!txq) {
.elts = elts,
.elts_head = 0,
.elts_tail = 0,
- .elts_comp = 0,
/*
* Request send completion every MLX4_PMD_TX_PER_COMP_REQ
* packets or at least 4 times per ring.
RTE_MIN(MLX4_PMD_TX_PER_COMP_REQ, desc / 4),
.elts_comp_cd_init =
RTE_MIN(MLX4_PMD_TX_PER_COMP_REQ, desc / 4),
- .csum = priv->hw_csum,
- .csum_l2tun = priv->hw_csum_l2tun,
+ .csum = priv->hw_csum &&
+ (conf->offloads & (DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM)),
+ .csum_l2tun = priv->hw_csum_l2tun &&
+ (conf->offloads &
+ DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM),
/* Enable Tx loopback for VF devices. */
.lb = !!priv->vf,
.bounce_buf = bounce_buf,
};
- txq->cq = ibv_create_cq(priv->ctx, desc, NULL, NULL, 0);
+ txq->cq = mlx4_glue->create_cq(priv->ctx, desc, NULL, NULL, 0);
if (!txq->cq) {
rte_errno = ENOMEM;
ERROR("%p: CQ creation failure: %s",
/* No completion events must occur by default. */
.sq_sig_all = 0,
};
- txq->qp = ibv_create_qp(priv->pd, &qp_init_attr);
+ txq->qp = mlx4_glue->create_qp(priv->pd, &qp_init_attr);
if (!txq->qp) {
rte_errno = errno ? errno : EINVAL;
ERROR("%p: QP creation failure: %s",
goto error;
}
txq->max_inline = qp_init_attr.cap.max_inline_data;
- ret = ibv_modify_qp
+ ret = mlx4_glue->modify_qp
(txq->qp,
&(struct ibv_qp_attr){
.qp_state = IBV_QPS_INIT,
(void *)dev, strerror(rte_errno));
goto error;
}
- ret = ibv_modify_qp
+ ret = mlx4_glue->modify_qp
(txq->qp,
&(struct ibv_qp_attr){
.qp_state = IBV_QPS_RTR,
(void *)dev, strerror(rte_errno));
goto error;
}
- ret = ibv_modify_qp
+ ret = mlx4_glue->modify_qp
(txq->qp,
&(struct ibv_qp_attr){
.qp_state = IBV_QPS_RTS,
mlxdv.cq.out = &dv_cq;
mlxdv.qp.in = txq->qp;
mlxdv.qp.out = &dv_qp;
- ret = mlx4dv_init_obj(&mlxdv, MLX4DV_OBJ_QP | MLX4DV_OBJ_CQ);
+ ret = mlx4_glue->dv_init_obj(&mlxdv, MLX4DV_OBJ_QP | MLX4DV_OBJ_CQ);
if (ret) {
rte_errno = EINVAL;
ERROR("%p: failed to obtain information needed for"
goto error;
}
mlx4_txq_fill_dv_obj_info(txq, &mlxdv);
+ /* Save first wqe pointer in the first element. */
+ (&(*txq->elts)[0])->wqe =
+ (volatile struct mlx4_wqe_ctrl_seg *)txq->msq.buf;
/* Pre-register known mempools. */
rte_mempool_walk(mlx4_txq_mp2mr_iter, txq);
DEBUG("%p: adding Tx queue %p to list", (void *)dev, (void *)txq);
}
mlx4_txq_free_elts(txq);
if (txq->qp)
- claim_zero(ibv_destroy_qp(txq->qp));
+ claim_zero(mlx4_glue->destroy_qp(txq->qp));
if (txq->cq)
- claim_zero(ibv_destroy_cq(txq->cq));
+ claim_zero(mlx4_glue->destroy_cq(txq->cq));
for (i = 0; i != RTE_DIM(txq->mp2mr); ++i) {
if (!txq->mp2mr[i].mp)
break;
Code Review / deb_dpdk.git / blobdiff