From: Ajit Khaparde Date: Wed, 15 Jun 2016 21:23:10 +0000 (-0700) Subject: net/bnxt: add Tx queue create/destroy X-Git-Tag: spdx-start~6492 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=51c87ebafc7d;p=dpdk.git net/bnxt: add Tx queue create/destroy In this patch we are adding the bnxt_tx_queue_setup_op() and bnxt_tx_queue_release_op() functions. These will be tied to the tx_queue_setup and tx_queue_release dev_ops in a subsequent patch. In these functions we allocate/free memory for the TX queues. This still requires support to create a TX ring in the ASIC which will be completed in a future commit. Each Tx queue created via the tx_queue_setup dev_op will have an associated Tx ring in the hardware. A Tx request coming on the Tx queue gets sent to the corresponding Tx ring in the ASIC for subsequent transmission. Signed-off-by: Ajit Khaparde Signed-off-by: Stephen Hurd Reviewed-by: David Christensen --- diff --git a/drivers/net/bnxt/Makefile b/drivers/net/bnxt/Makefile index b7834b1c07..13a90b9b54 100644 --- a/drivers/net/bnxt/Makefile +++ b/drivers/net/bnxt/Makefile @@ -53,6 +53,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_ethdev.c SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_filter.c SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_hwrm.c SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_ring.c +SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_txq.c SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_vnic.c # diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index b46d2ce155..77a6d92133 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -41,6 +41,7 @@ #include "bnxt.h" #include "bnxt_hwrm.h" +#include "bnxt_txq.h" #define DRV_MODULE_NAME "bnxt" static const char bnxt_version[] = @@ -185,6 +186,8 @@ static struct eth_dev_ops bnxt_dev_ops = { .dev_infos_get = bnxt_dev_info_get_op, .dev_close = bnxt_dev_close_op, .dev_configure = bnxt_dev_configure_op, + .tx_queue_setup = bnxt_tx_queue_setup_op, + .tx_queue_release = bnxt_tx_queue_release_op, }; static bool bnxt_vf_pciid(uint16_t id) diff --git a/drivers/net/bnxt/bnxt_txq.c b/drivers/net/bnxt/bnxt_txq.c new file mode 100644 index 0000000000..892898410f --- /dev/null +++ b/drivers/net/bnxt/bnxt_txq.c @@ -0,0 +1,124 @@ +/*- + * BSD LICENSE + * + * Copyright(c) Broadcom Limited. + * All rights reserved. + * + * 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 Broadcom Corporation 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. + */ + +#include + +#include + +#include "bnxt.h" +#include "bnxt_ring.h" +#include "bnxt_txq.h" + +/* + * TX Queues + */ + +void bnxt_free_txq_stats(struct bnxt_tx_queue *txq) +{ + struct bnxt_cp_ring_info *cpr = txq->cp_ring; + + /* 'Unreserve' rte_memzone */ + + if (cpr->hw_stats) + cpr->hw_stats = NULL; +} + +static void bnxt_tx_queue_release_mbufs(struct bnxt_tx_queue *txq __rte_unused) +{ + /* TODO: Requires interaction with TX ring */ +} + +void bnxt_free_tx_mbufs(struct bnxt *bp) +{ + struct bnxt_tx_queue *txq; + int i; + + for (i = 0; i < (int)bp->tx_nr_rings; i++) { + txq = bp->tx_queues[i]; + bnxt_tx_queue_release_mbufs(txq); + } +} + +void bnxt_tx_queue_release_op(void *tx_queue) +{ + struct bnxt_tx_queue *txq = (struct bnxt_tx_queue *)tx_queue; + + if (txq) { + /* TODO: Free ring and stats here */ + rte_free(txq); + } +} + +int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev, + uint16_t queue_idx, + uint16_t nb_desc, + unsigned int socket_id, + const struct rte_eth_txconf *tx_conf) +{ + struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private; + struct bnxt_tx_queue *txq; + + if (!nb_desc || nb_desc > MAX_TX_DESC_CNT) { + RTE_LOG(ERR, PMD, "nb_desc %d is invalid", nb_desc); + return -EINVAL; + } + + if (eth_dev->data->tx_queues) { + txq = eth_dev->data->tx_queues[queue_idx]; + if (txq) { + bnxt_tx_queue_release_op(txq); + txq = NULL; + } + } + txq = rte_zmalloc_socket("bnxt_tx_queue", sizeof(struct bnxt_tx_queue), + RTE_CACHE_LINE_SIZE, socket_id); + if (txq == NULL) { + RTE_LOG(ERR, PMD, "bnxt_tx_queue allocation failed!"); + return -ENOMEM; + } + txq->bp = bp; + txq->nb_tx_desc = nb_desc; + txq->tx_free_thresh = tx_conf->tx_free_thresh; + + /* TODO: Initialize ring structure */ + + txq->queue_id = queue_idx; + txq->port_id = eth_dev->data->port_id; + + /* TODO: Allocate TX ring hardware descriptors */ + + /* TODO: Initialize the ring */ + + eth_dev->data->tx_queues[queue_idx] = txq; + return 0; +} diff --git a/drivers/net/bnxt/bnxt_txq.h b/drivers/net/bnxt/bnxt_txq.h new file mode 100644 index 0000000000..16f3a0bdd1 --- /dev/null +++ b/drivers/net/bnxt/bnxt_txq.h @@ -0,0 +1,75 @@ +/*- + * BSD LICENSE + * + * Copyright(c) Broadcom Limited. + * All rights reserved. + * + * 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 Broadcom Corporation 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. + */ + +#ifndef _BNXT_TXQ_H_ +#define _BNXT_TXQ_H_ + +struct bnxt_tx_ring_info; +struct bnxt_cp_ring_info; +struct bnxt_tx_queue { + uint16_t nb_tx_desc; /* number of TX descriptors */ + uint16_t tx_free_thresh;/* minimum TX before freeing */ + /** Index to last TX descriptor to have been cleaned. */ + uint16_t last_desc_cleaned; + /** Total number of TX descriptors ready to be allocated. */ + uint16_t tx_next_dd; /* next desc to scan for DD bit */ + uint16_t tx_next_rs; /* next desc to set RS bit */ + uint16_t queue_id; /* TX queue index */ + uint16_t reg_idx; /* TX queue register index */ + uint8_t port_id; /* Device port identifier */ + uint8_t pthresh; /* Prefetch threshold register */ + uint8_t hthresh; /* Host threshold register */ + uint8_t wthresh; /* Write-back threshold reg */ + uint32_t txq_flags; /* Holds flags for this TXq */ + uint32_t ctx_curr; /* Hardware context states */ + uint8_t tx_deferred_start; /* not in global dev start */ + + struct bnxt *bp; + int index; + int tx_wake_thresh; + struct bnxt_tx_ring_info *tx_ring; + + unsigned int cp_nr_rings; + struct bnxt_cp_ring_info *cp_ring; +}; + +void bnxt_free_txq_stats(struct bnxt_tx_queue *txq); +void bnxt_free_tx_mbufs(struct bnxt *bp); +void bnxt_tx_queue_release_op(void *tx_queue); +int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev, + uint16_t queue_idx, + uint16_t nb_desc, + unsigned int socket_id, + const struct rte_eth_txconf *tx_conf); + +#endif