[dpdk-dev] [PATCH] net/nfb: new netcope driver
Rami Rosen
ramirose at gmail.com
Tue Feb 26 15:20:44 CET 2019
Hi, Cernay,
> delete mode 100644 examples/skeleton/basicfwd.c
It seems that this patch deletes examples/skeleton/basicfwd.c,
(instead of patching it ?!), maybe by mistake.
Reviewed-by: Rami Rosen <ramirose at gmail.com>
Rami Rosen
On Tue, Feb 26, 2019 at 3:04 PM Rastislav Cernay <cernay at netcope.com> wrote:
> From: Rastislav Cernay <cernay at netcope.com>
>
> Added new net driver for Netcope nfb cards
>
> Signed-off-by: Rastislav Cernay <cernay at netcope.com>
> ---
> MAINTAINERS | 7 +
> config/common_base | 4 +
> devtools/test-build.sh | 1 +
> doc/guides/nics/features/nfb.ini | 17 ++
> doc/guides/nics/nfb.rst | 141 ++++++++++
> drivers/net/Makefile | 1 +
> drivers/net/meson.build | 1 +
> drivers/net/nfb/Makefile | 41 +++
> drivers/net/nfb/meson.build | 9 +
> drivers/net/nfb/nfb.h | 51 ++++
> drivers/net/nfb/nfb_ethdev.c | 586
> +++++++++++++++++++++++++++++++++++++++
> drivers/net/nfb/nfb_rx.c | 127 +++++++++
> drivers/net/nfb/nfb_rx.h | 226 +++++++++++++++
> drivers/net/nfb/nfb_rxmode.c | 104 +++++++
> drivers/net/nfb/nfb_rxmode.h | 81 ++++++
> drivers/net/nfb/nfb_stats.c | 79 ++++++
> drivers/net/nfb/nfb_stats.h | 52 ++++
> drivers/net/nfb/nfb_tx.c | 112 ++++++++
> drivers/net/nfb/nfb_tx.h | 209 ++++++++++++++
> examples/skeleton/basicfwd.c | 198 -------------
> mk/rte.app.mk | 1 +
> 21 files changed, 1850 insertions(+), 198 deletions(-)
> create mode 100644 doc/guides/nics/features/nfb.ini
> create mode 100644 doc/guides/nics/nfb.rst
> create mode 100644 drivers/net/nfb/Makefile
> create mode 100644 drivers/net/nfb/meson.build
> create mode 100644 drivers/net/nfb/nfb.h
> create mode 100644 drivers/net/nfb/nfb_ethdev.c
> create mode 100644 drivers/net/nfb/nfb_rx.c
> create mode 100644 drivers/net/nfb/nfb_rx.h
> create mode 100644 drivers/net/nfb/nfb_rxmode.c
> create mode 100644 drivers/net/nfb/nfb_rxmode.h
> create mode 100644 drivers/net/nfb/nfb_stats.c
> create mode 100644 drivers/net/nfb/nfb_stats.h
> create mode 100644 drivers/net/nfb/nfb_tx.c
> create mode 100644 drivers/net/nfb/nfb_tx.h
> delete mode 100644 examples/skeleton/basicfwd.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 6610440..c6bffde 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -654,6 +654,13 @@ F: drivers/net/szedata2/
> F: doc/guides/nics/szedata2.rst
> F: doc/guides/nics/features/szedata2.ini
>
> +Netcope nfb
> +M: Rastislav Cernay <cernay at netcope.com>
> +M: Jan Remes <remes at netcope.com>
> +F: drivers/net/nfb/
> +F: doc/guides/nics/nfb.rst
> +F: doc/guides/nics/features/nfb.ini
> +
> Netronome nfp
> M: Alejandro Lucero <alejandro.lucero at netronome.com>
> F: drivers/net/nfp/
> diff --git a/config/common_base b/config/common_base
> index 7c6da51..1ab0a6b 100644
> --- a/config/common_base
> +++ b/config/common_base
> @@ -360,6 +360,10 @@ CONFIG_RTE_LIBRTE_SFC_EFX_DEBUG=n
> # Compile software PMD backed by SZEDATA2 device
> #
> CONFIG_RTE_LIBRTE_PMD_SZEDATA2=n
> +#
> +# Compile software PMD backed by NFB device
> +#
> +CONFIG_RTE_LIBRTE_PMD_NFB=n
>
> #
> # Compile burst-oriented Cavium Thunderx NICVF PMD driver
> diff --git a/devtools/test-build.sh b/devtools/test-build.sh
> index 42f4ad0..ab57ab8 100755
> --- a/devtools/test-build.sh
> +++ b/devtools/test-build.sh
> @@ -18,6 +18,7 @@ default_path=$PATH
> # - DPDK_DEP_SSL (y/[n])
> # - DPDK_DEP_IPSEC_MB (y/[n])
> # - DPDK_DEP_SZE (y/[n])
> +# - DPDK_DEP_NFB (y/[n])
> # - DPDK_DEP_ZLIB (y/[n])
> # - DPDK_MAKE_JOBS (int)
> # - DPDK_NOTIFY (notify-send)
> diff --git a/doc/guides/nics/features/nfb.ini
> b/doc/guides/nics/features/nfb.ini
> new file mode 100644
> index 0000000..6174d65
> --- /dev/null
> +++ b/doc/guides/nics/features/nfb.ini
> @@ -0,0 +1,17 @@
> +;
> +; Supported features of the 'nfb' network poll mode driver.
> +;
> +; Refer to default.ini for the full list of available PMD features.
> +;
> +[Features]
> +Speed capabilities = P
> +Link status = Y
> +Queue start/stop = Y
> +Promiscuous mode = Y
> +Allmulticast mode = Y
> +Basic stats = Y
> +Extended stats = Y
> +Stats per queue = Y
> +Other kdrv = Y
> +x86-64 = Y
> +Usage doc = Y
> diff --git a/doc/guides/nics/nfb.rst b/doc/guides/nics/nfb.rst
> new file mode 100644
> index 0000000..9057d41
> --- /dev/null
> +++ b/doc/guides/nics/nfb.rst
> @@ -0,0 +1,141 @@
> +.. SPDX-License-Identifier: BSD-3-Clause
> + Copyright 2015 - 2016 CESNET
> +
> +NFB poll mode driver library
> +=================================
> +
> +The NFB poll mode driver library implements support for the Netcope
> +FPGA Boards (**NFB-***), FPGA-based programmable NICs.
> +The NFB PMD uses interface provided by the libnfb library to communicate
> +with the NFB cards over the nfb layer.
> +
> +More information about the
> +`NFB cards <http://www.netcope.com/en/products/fpga-boards>`_
> +and used technology
> +(`Netcope Development Kit <
> http://www.netcope.com/en/products/fpga-development-kit>`_)
> +can be found on the `Netcope Technologies website <
> http://www.netcope.com/>`_.
> +
> +.. note::
> +
> + This driver has external dependencies.
> + Therefore it is disabled in default configuration files.
> + It can be enabled by setting ``CONFIG_RTE_LIBRTE_PMD_NFB=y``
> + and recompiling.
> +
> +.. note::
> +
> + Currently the driver is supported only on x86_64 architectures.
> + Only x86_64 versions of the external libraries are provided.
> +
> +Prerequisites
> +-------------
> +
> +This PMD requires kernel modules which are responsible for initialization
> and
> +allocation of resources needed for nfb layer function.
> +Communication between PMD and kernel modules is mediated by libnfb
> library.
> +These kernel modules and library are not part of DPDK and must be
> installed
> +separately:
> +
> +* **libnfb library**
> +
> + The library provides API for initialization of nfb transfers,
> receiving and
> + transmitting data segments.
> +
> +* **Kernel modules**
> +
> + * nfb
> +
> + Kernel modules manage initialization of hardware, allocation and
> + sharing of resources for user space applications.
> +
> +Dependencies can be found here:
> +`Netcope common <
> https://drive.google.com/file/d/13khqS312KzrRSrgGxD0CBSmd1YLJHWp8>`_.
> +
> +Versions of the packages
> +~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +The minimum version of the provided packages:
> +
> +* for DPDK from 19.02
> +
> +Configuration
> +-------------
> +
> +These configuration options can be modified before compilation in the
> +``.config`` file:
> +
> +* ``CONFIG_RTE_LIBRTE_PMD_NFB`` default value: **n**
> +
> + Value **y** enables compilation of nfb PMD.
> +
> +Using the NFB PMD
> +----------------------
> +
> +Kernel modules have to be loaded before running the DPDK application.
> +
> +NFB card architecture
> +---------------------
> +
> +The NFB cards are multi-port multi-queue cards, where (generally) data
> from any
> +Ethernet port may be sent to any queue.
> +They are represented in DPDK as a single port.
> +
> +NFB-200G2QL card employs an addon cable which allows to connect it to two
> +physical PCI-E slots at the same time (see the diagram below).
> +This is done to allow 200 Gbps of traffic to be transferred through the
> PCI-E
> +bus (note that a single PCI-E 3.0 x16 slot provides only 125 Gbps
> theoretical
> +throughput).
> +
> +Although each slot may be connected to a different CPU and therefore to a
> different
> +NUMA node, the card is represented as a single port in DPDK. To work with
> data
> +from the individual queues on the right NUMA node, connection of NUMA
> nodes on
> +first and last queue (each NUMA node has half of the queues) need to be
> checked.
> +
> +.. figure:: img/szedata2_nfb200g_architecture.svg
> + :align: center
> +
> + NFB-200G2QL high-level diagram
> +
> +Limitations
> +-----------
> +
> +Since a card is always represented as a single port, but can be connected
> to two
> +NUMA nodes, there is need for manual check where master/slave is
> connected.
> +
> +Example of usage
> +----------------
> +
> +Read packets from 0. and 1. receive queue and write them to 0. and 1.
> +transmit queue:
> +
> +.. code-block:: console
> +
> + $RTE_TARGET/app/testpmd -l 0-3 -n 2 \
> + -- --port-topology=chained --rxq=2 --txq=2 --nb-cores=2 -i -a
> +
> +Example output:
> +
> +.. code-block:: console
> +
> + [...]
> + EAL: PCI device 0000:06:00.0 on NUMA socket -1
> + EAL: probe driver: 1b26:c1c1 net_nfb
> + PMD: Initializing NFB device (0000:06:00.0)
> + PMD: Available DMA queues RX: 8 TX: 8
> + PMD: NFB device (0000:06:00.0) successfully initialized
> + Interactive-mode selected
> + Auto-start selected
> + Configuring Port 0 (socket 0)
> + Port 0: 00:11:17:00:00:00
> + Checking link statuses...
> + Port 0 Link Up - speed 10000 Mbps - full-duplex
> + Done
> + Start automatic packet forwarding
> + io packet forwarding - CRC stripping disabled - packets/burst=32
> + nb forwarding cores=2 - nb forwarding ports=1
> + RX queues=2 - RX desc=128 - RX free threshold=0
> + RX threshold registers: pthresh=0 hthresh=0 wthresh=0
> + TX queues=2 - TX desc=512 - TX free threshold=0
> + TX threshold registers: pthresh=0 hthresh=0 wthresh=0
> + TX RS bit threshold=0 - TXQ flags=0x0
> + testpmd>
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index 670d7f7..013c551 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -38,6 +38,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5
> DIRS-$(CONFIG_RTE_LIBRTE_MVNETA_PMD) += mvneta
> DIRS-$(CONFIG_RTE_LIBRTE_MVPP2_PMD) += mvpp2
> DIRS-$(CONFIG_RTE_LIBRTE_NETVSC_PMD) += netvsc
> +DIRS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += nfb
> DIRS-$(CONFIG_RTE_LIBRTE_NFP_PMD) += nfp
> DIRS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt
> DIRS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += null
> diff --git a/drivers/net/meson.build b/drivers/net/meson.build
> index 45da3bb..6733a19 100644
> --- a/drivers/net/meson.build
> +++ b/drivers/net/meson.build
> @@ -27,6 +27,7 @@ drivers = ['af_packet',
> 'mvneta',
> 'mvpp2',
> 'netvsc',
> + 'nfb',
> 'nfp',
> 'null', 'octeontx', 'pcap', 'qede', 'ring',
> 'sfc',
> diff --git a/drivers/net/nfb/Makefile b/drivers/net/nfb/Makefile
> new file mode 100644
> index 0000000..ee8c7df
> --- /dev/null
> +++ b/drivers/net/nfb/Makefile
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright(c) 2018 Cesnet
> +# Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> +# All rights reserved.
> +
> +include $(RTE_SDK)/mk/rte.vars.mk
> +
> +#
> +# library name
> +#
> +LIB = librte_pmd_nfb.a
> +
> +INCLUDES :=-I$(SRCDIR)
> +
> +
> +CFLAGS += -O3
> +CFLAGS += $(WERROR_FLAGS)
> +LDLIBS += -lnfb
> +LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
> +LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
> +LDLIBS += -lrte_bus_pci
> +
> +EXPORT_MAP := rte_pmd_nfb_version.map
> +
> +LIBABIVER := 1
> +
> +#
> +# all source are stored in SRCS-y
> +#
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += nfb_ethdev.c
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += nfb_rx.c
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += nfb_tx.c
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += nfb_stats.c
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += nfb_rxmode.c
> +
> +#
> +# Export include files
> +#
> +SYMLINK-y-include +=
> +
> +include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/drivers/net/nfb/meson.build b/drivers/net/nfb/meson.build
> new file mode 100644
> index 0000000..d7dccba
> --- /dev/null
> +++ b/drivers/net/nfb/meson.build
> @@ -0,0 +1,9 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright(c) 2018 Cesnet
> +# Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> +# All rights reserved.
> +
> +dep = cc.find_library('nfb', required: true)
> +build = dep.found()
> +ext_deps += dep
> +sources = files('nfb_rx.c', 'nfb_tx.c', 'nfb_stats.c', 'nfb_ethdev.c',
> 'nfb_rxmode.c')
> diff --git a/drivers/net/nfb/nfb.h b/drivers/net/nfb/nfb.h
> new file mode 100644
> index 0000000..d032ba4
> --- /dev/null
> +++ b/drivers/net/nfb/nfb.h
> @@ -0,0 +1,51 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +#ifndef _NFB_H_
> +#define _NFB_H_
> +
> +#include <nfb/nfb.h>
> +#include <nfb/ndp.h>
> +#include <netcope/rxmac.h>
> +#include <netcope/txmac.h>
> +
> +#include "nfb_rx.h"
> +#include "nfb_tx.h"
> +
> +/* PCI Vendor ID */
> +#define PCI_VENDOR_ID_NETCOPE 0x1b26
> +
> +/* PCI Device IDs */
> +#define PCI_DEVICE_ID_NFB_40G2 0xcb80
> +#define PCI_DEVICE_ID_NFB_100G2 0xc2c1
> +#define PCI_DEVICE_ID_NFB_200G2QL 0xc250
> +
> +/* Max index of ndp rx/tx queues */
> +#define RTE_ETH_NDP_MAX_RX_QUEUES 32
> +#define RTE_ETH_NDP_MAX_TX_QUEUES 32
> +
> +/* Max index of rx/tx dmas */
> +#define RTE_MAX_NC_RXMAC 256
> +#define RTE_MAX_NC_TXMAC 256
> +
> +#define RTE_NFB_DRIVER_NAME net_nfb
> +
> +struct pmd_internals {
> + uint16_t max_rxmac;
> + uint16_t max_txmac;
> + struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC];
> + struct nc_txmac *txmac[RTE_MAX_NC_TXMAC];
> +
> + char nfb_dev[PATH_MAX];
> + struct nfb_device *nfb;
> + /* Place to remember if filter was promiscous or filtering by
> table,
> + * when disabling allmulticast
> + */
> + enum nc_rxmac_mac_filter rx_filter_original;
> +};
> +
> +
> +#endif /* _NFB_H_ */
> diff --git a/drivers/net/nfb/nfb_ethdev.c b/drivers/net/nfb/nfb_ethdev.c
> new file mode 100644
> index 0000000..c8d546f
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_ethdev.c
> @@ -0,0 +1,586 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +#include <stdint.h>
> +#include <unistd.h>
> +#include <stdbool.h>
> +#include <err.h>
> +#include <sys/types.h>
> +#include <dirent.h>
> +#include <sys/stat.h>
> +#include <fcntl.h>
> +#include <sys/mman.h>
> +
> +#include <nfb/nfb.h>
> +#include <nfb/ndp.h>
> +#include <netcope/rxmac.h>
> +#include <netcope/txmac.h>
> +
> +#include <rte_mbuf.h>
> +#include <rte_ethdev.h>
> +#include <rte_ethdev_pci.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_kvargs.h>
> +#include <rte_dev.h>
> +#include <rte_common.h>
> +
> +#include "nfb_stats.h"
> +#include "nfb_rx.h"
> +#include "nfb_tx.h"
> +#include "nfb_rxmode.h"
> +#include "nfb.h"
> +
> +/**
> + * Default MAC addr
> + */
> +static struct ether_addr eth_addr = {
> + .addr_bytes = { 0x00, 0x11, 0x17, 0x00, 0x00, 0x00 }
> +};
> +
> +/**
> + * Open all RX DMA queues
> + *
> + * @param dev
> + * Pointer to nfb device.
> + * @param[out] rxmac
> + * Pointer to output array of nc_rxmac
> + * @param[out] max_rxmac
> + * Pointer to output max index of rxmac
> + */
> +static void
> +nfb_nc_rxmac_init(struct nfb_device *nfb,
> + struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC],
> + uint16_t *max_rxmac)
> +{
> + *max_rxmac = 0;
> + while ((rxmac[*max_rxmac] = nc_rxmac_open_index(nfb, *max_rxmac)))
> + ++(*max_rxmac);
> +}
> +
> +/**
> + * Open all TX DMA queues
> + *
> + * @param dev
> + * Pointer to nfb device.
> + * @param[out] txmac
> + * Pointer to output array of nc_txmac
> + * @param[out] max_rxmac
> + * Pointer to output max index of txmac
> + */
> +static void
> +nfb_nc_txmac_init(struct nfb_device *nfb,
> + struct nc_txmac *txmac[RTE_MAX_NC_TXMAC],
> + uint16_t *max_txmac)
> +{
> + *max_txmac = 0;
> + while ((txmac[*max_txmac] = nc_txmac_open_index(nfb, *max_txmac)))
> + ++(*max_txmac);
> +}
> +
> +/**
> + * Close all RX DMA queues
> + *
> + * @param rxmac
> + * Pointer to array of nc_rxmac
> + * @param max_rxmac
> + * Maximum index of rxmac
> + */
> +static void
> +nfb_nc_rxmac_deinit(struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC],
> + uint16_t max_rxmac)
> +{
> + for (; max_rxmac > 0; --max_rxmac) {
> + nc_rxmac_close(rxmac[max_rxmac]);
> + rxmac[max_rxmac] = NULL;
> + }
> +}
> +
> +/**
> + * Close all TX DMA queues
> + *
> + * @param txmac
> + * Pointer to array of nc_txmac
> + * @param max_txmac
> + * Maximum index of txmac
> + */
> +static void
> +nfb_nc_txmac_deinit(struct nc_txmac *txmac[RTE_MAX_NC_TXMAC],
> + uint16_t max_txmac)
> +{
> + for (; max_txmac > 0; --max_txmac) {
> + nc_txmac_close(txmac[max_txmac]);
> + txmac[max_txmac] = NULL;
> + }
> +}
> +
> +/**
> + * DPDK callback to start the device.
> + *
> + * Start device by starting all configured queues.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_dev_start(struct rte_eth_dev *dev)
> +{
> + int ret;
> + uint16_t i;
> + uint16_t nb_rx = dev->data->nb_rx_queues;
> + uint16_t nb_tx = dev->data->nb_tx_queues;
> +
> + for (i = 0; i < nb_rx; i++) {
> + ret = nfb_eth_rx_queue_start(dev, i);
> + if (ret != 0)
> + goto err_rx;
> + }
> +
> + for (i = 0; i < nb_tx; i++) {
> + ret = nfb_eth_tx_queue_start(dev, i);
> + if (ret != 0)
> + goto err_tx;
> + }
> +
> + return 0;
> +
> +err_tx:
> + for (i = 0; i < nb_tx; i++)
> + nfb_eth_tx_queue_stop(dev, i);
> +err_rx:
> + for (i = 0; i < nb_rx; i++)
> + nfb_eth_rx_queue_stop(dev, i);
> + return ret;
> +}
> +
> +/**
> + * DPDK callback to stop the device.
> + *
> + * Stop device by stopping all configured queues.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +static void
> +nfb_eth_dev_stop(struct rte_eth_dev *dev)
> +{
> + uint16_t i;
> + uint16_t nb_rx = dev->data->nb_rx_queues;
> + uint16_t nb_tx = dev->data->nb_tx_queues;
> +
> + for (i = 0; i < nb_tx; i++)
> + nfb_eth_tx_queue_stop(dev, i);
> +
> + for (i = 0; i < nb_rx; i++)
> + nfb_eth_rx_queue_stop(dev, i);
> +}
> +
> +/**
> + * DPDK callback for Ethernet device configuration.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_dev_configure(struct rte_eth_dev *dev)
> +{
> + dev->rx_pkt_burst = nfb_eth_ndp_rx;
> + return 0;
> +}
> +
> +/**
> + * DPDK callback to get information about the device.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param[out] info
> + * Info structure output buffer.
> + */
> +static void
> +nfb_eth_dev_info(struct rte_eth_dev *dev,
> + struct rte_eth_dev_info *dev_info)
> +{
> + dev_info->if_index = 0;
> + dev_info->max_mac_addrs = 1;
> + dev_info->max_rx_pktlen = (uint32_t)-1;
> + dev_info->max_rx_queues = dev->data->nb_rx_queues;
> + dev_info->max_tx_queues = dev->data->nb_tx_queues;
> + dev_info->min_rx_bufsize = 0;
> + dev_info->speed_capa = ETH_LINK_SPEED_100G;
> +}
> +
> +/**
> + * DPDK callback to close the device.
> + *
> + * Destroy all queues and objects, free memory.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +static void
> +nfb_eth_dev_close(struct rte_eth_dev *dev)
> +{
> + uint16_t i;
> + uint16_t nb_rx = dev->data->nb_rx_queues;
> + uint16_t nb_tx = dev->data->nb_tx_queues;
> +
> + nfb_eth_dev_stop(dev);
> +
> + for (i = 0; i < nb_rx; i++) {
> + nfb_eth_rx_queue_release(dev->data->rx_queues[i]);
> + dev->data->rx_queues[i] = NULL;
> + }
> + dev->data->nb_rx_queues = 0;
> + for (i = 0; i < nb_tx; i++) {
> + nfb_eth_tx_queue_release(dev->data->tx_queues[i]);
> + dev->data->tx_queues[i] = NULL;
> + }
> + dev->data->nb_tx_queues = 0;
> +}
> +
> +/**
> + * DPDK callback to retrieve physical link information.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param[out] link
> + * Storage for current link status.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_link_update(struct rte_eth_dev *dev,
> + int wait_to_complete __rte_unused)
> +{
> + uint16_t i;
> + struct rte_eth_link link;
> + memset(&link, 0, sizeof(link));
> +
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + struct nc_rxmac_status status;
> + status.speed = MAC_SPEED_UNKNOWN;
> +
> + link.link_speed = ETH_SPEED_NUM_NONE;
> + link.link_status = ETH_LINK_DOWN;
> + link.link_duplex = ETH_LINK_FULL_DUPLEX;
> + link.link_autoneg = ETH_LINK_SPEED_FIXED;
> +
> + if (internals->rxmac[0] != NULL) {
> + nc_rxmac_read_status(internals->rxmac[0], &status);
> +
> + switch (status.speed) {
> + case MAC_SPEED_10G:
> + link.link_speed = ETH_SPEED_NUM_10G;
> + break;
> + case MAC_SPEED_40G:
> + link.link_speed = ETH_SPEED_NUM_40G;
> + break;
> + case MAC_SPEED_100G:
> + link.link_speed = ETH_SPEED_NUM_100G;
> + break;
> + default:
> + link.link_speed = ETH_SPEED_NUM_NONE;
> + break;
> + }
> + }
> +
> + i = 0;
> + for (i = 0; i < internals->max_rxmac; ++i) {
> + nc_rxmac_read_status(internals->rxmac[i], &status);
> +
> + if (status.enabled && status.link_up) {
> + link.link_status = ETH_LINK_UP;
> + break;
> + }
> + }
> +
> + rte_eth_linkstatus_set(dev, &link);
> +
> + return 0;
> +}
> +
> +/**
> + * DPDK callback to bring the link UP.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_dev_set_link_up(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + uint16_t i;
> + for (i = 0; i < internals->max_rxmac; ++i)
> + nc_rxmac_enable(internals->rxmac[i]);
> +
> + for (i = 0; i < internals->max_txmac; ++i)
> + nc_txmac_enable(internals->txmac[i]);
> +
> + return 0;
> +}
> +
> +/**
> + * DPDK callback to bring the link DOWN.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_dev_set_link_down(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + uint16_t i;
> + for (i = 0; i < internals->max_rxmac; ++i)
> + nc_rxmac_disable(internals->rxmac[i]);
> +
> + for (i = 0; i < internals->max_txmac; ++i)
> + nc_txmac_disable(internals->txmac[i]);
> +
> + return 0;
> +}
> +
> +/**
> + * DPDK callback to set primary MAC address.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param mac_addr
> + * MAC address to register.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_mac_addr_set(struct rte_eth_dev *dev __rte_unused,
> + struct ether_addr *mac_addr __rte_unused)
> +{
> + return 0;
> +}
> +
> +static const struct eth_dev_ops ops = {
> + .dev_start = nfb_eth_dev_start,
> + .dev_stop = nfb_eth_dev_stop,
> + .dev_set_link_up = nfb_eth_dev_set_link_up,
> + .dev_set_link_down = nfb_eth_dev_set_link_down,
> + .dev_close = nfb_eth_dev_close,
> + .dev_configure = nfb_eth_dev_configure,
> + .dev_infos_get = nfb_eth_dev_info,
> + .promiscuous_enable = nfb_eth_promiscuous_enable,
> + .promiscuous_disable = nfb_eth_promiscuous_disable,
> + .allmulticast_enable = nfb_eth_allmulticast_enable,
> + .allmulticast_disable = nfb_eth_allmulticast_disable,
> + .rx_queue_start = nfb_eth_rx_queue_start,
> + .rx_queue_stop = nfb_eth_rx_queue_stop,
> + .tx_queue_start = nfb_eth_tx_queue_start,
> + .tx_queue_stop = nfb_eth_tx_queue_stop,
> + .rx_queue_setup = nfb_eth_rx_queue_setup,
> + .tx_queue_setup = nfb_eth_tx_queue_setup,
> + .rx_queue_release = nfb_eth_rx_queue_release,
> + .tx_queue_release = nfb_eth_tx_queue_release,
> + .link_update = nfb_eth_link_update,
> + .stats_get = nfb_eth_stats_get,
> + .stats_reset = nfb_eth_stats_reset,
> + .mac_addr_set = nfb_eth_mac_addr_set,
> +};
> +
> +/**
> + * DPDK callback to initialize an ethernet device
> + *
> + * @param dev
> + * Pointer to ethernet device structure
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_dev_init(struct rte_eth_dev *dev)
> +{
> + struct rte_eth_dev_data *data = dev->data;
> + struct pmd_internals *internals = (struct pmd_internals *)
> + data->dev_private;
> + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
> + struct rte_pci_addr *pci_addr = &pci_dev->addr;
> +
> + RTE_LOG(INFO, PMD, "Initializing NFB device (" PCI_PRI_FMT ")\n",
> + pci_addr->domain, pci_addr->bus, pci_addr->devid,
> + pci_addr->function);
> +
> + snprintf(internals->nfb_dev, PATH_MAX,
> + "/dev/nfb/by-pci-slot/" PCI_PRI_FMT,
> + pci_addr->domain, pci_addr->bus, pci_addr->devid,
> + pci_addr->function);
> +
> + /*
> + * Get number of available DMA RX and TX queues, which is maximum
> + * number of queues that can be created and store it in private
> device
> + * data structure.
> + */
> + internals->nfb = nfb_open(internals->nfb_dev);
> + if (internals->nfb == NULL) {
> + RTE_LOG(ERR, PMD, "nfb_open(): failed to open %s",
> + internals->nfb_dev);
> + return -EINVAL;
> + }
> + data->nb_rx_queues =
> ndp_get_rx_queue_available_count(internals->nfb);
> + data->nb_tx_queues =
> ndp_get_tx_queue_available_count(internals->nfb);
> +
> + RTE_LOG(INFO, PMD, "Available NDP queues RX: %u TX: %u\n",
> + data->nb_rx_queues, data->nb_tx_queues);
> +
> + nfb_nc_rxmac_init(internals->nfb,
> + internals->rxmac,
> + &internals->max_rxmac);
> + nfb_nc_txmac_init(internals->nfb,
> + internals->txmac,
> + &internals->max_txmac);
> +
> + /* Set rx, tx burst functions */
> + dev->rx_pkt_burst = nfb_eth_ndp_rx;
> + dev->tx_pkt_burst = nfb_eth_ndp_tx;
> +
> + /* Set function callbacks for Ethernet API */
> + dev->dev_ops = &ops;
> +
> + rte_eth_copy_pci_info(dev, pci_dev);
> +
> + /* Get link state */
> + nfb_eth_link_update(dev, 0);
> +
> + /* Allocate space for one mac address */
> + data->mac_addrs = rte_zmalloc(data->name, sizeof(struct
> ether_addr),
> + RTE_CACHE_LINE_SIZE);
> + if (data->mac_addrs == NULL) {
> + RTE_LOG(ERR, PMD, "Could not alloc space for MAC
> address!\n");
> + nfb_close(internals->nfb);
> + return -EINVAL;
> + }
> +
> + ether_addr_copy(ð_addr, data->mac_addrs);
> +
> + data->promiscuous = nfb_eth_promiscuous_get(dev);
> + data->all_multicast = nfb_eth_allmulticast_get(dev);
> + internals->rx_filter_original = data->promiscuous;
> +
> + RTE_LOG(INFO, PMD, "NFB device ("
> + PCI_PRI_FMT ") successfully initialized\n",
> + pci_addr->domain, pci_addr->bus, pci_addr->devid,
> + pci_addr->function);
> +
> + return 0;
> +}
> +
> +/**
> + * DPDK callback to uninitialize an ethernet device
> + *
> + * @param dev
> + * Pointer to ethernet device structure
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int
> +nfb_eth_dev_uninit(struct rte_eth_dev *dev)
> +{
> + struct rte_eth_dev_data *data = dev->data;
> + struct pmd_internals *internals = (struct pmd_internals *)
> + data->dev_private;
> +
> + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
> + struct rte_pci_addr *pci_addr = &pci_dev->addr;
> +
> + rte_free(dev->data->mac_addrs);
> + dev->data->mac_addrs = NULL;
> +
> + nfb_nc_rxmac_deinit(internals->rxmac, internals->max_rxmac);
> + nfb_nc_txmac_deinit(internals->txmac, internals->max_txmac);
> +
> + RTE_LOG(INFO, PMD, "NFB device ("
> + PCI_PRI_FMT ") successfully uninitialized\n",
> + pci_addr->domain, pci_addr->bus, pci_addr->devid,
> + pci_addr->function);
> +
> + return 0;
> +}
> +
> +static const struct rte_pci_id nfb_pci_id_table[] = {
> + {
> + RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
> PCI_DEVICE_ID_NFB_40G2)
> + },
> + {
> + RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
> PCI_DEVICE_ID_NFB_100G2)
> + },
> + {
> + RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
> PCI_DEVICE_ID_NFB_200G2QL)
> + },
> + {
> + .vendor_id = 0,
> + }
> +};
> +
> +/**
> + * DPDK callback to register a PCI device.
> + *
> + * This function spawns Ethernet devices out of a given PCI device.
> + *
> + * @param[in] pci_drv
> + * PCI driver structure (nfb_driver).
> + * @param[in] pci_dev
> + * PCI device information.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +static int nfb_eth_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
> + struct rte_pci_device *pci_dev)
> +{
> + return rte_eth_dev_pci_generic_probe(pci_dev,
> + sizeof(struct pmd_internals), nfb_eth_dev_init);
> +}
> +
> +/**
> + * DPDK callback to remove a PCI device.
> + *
> + * This function removes all Ethernet devices belong to a given PCI
> device.
> + *
> + * @param[in] pci_dev
> + * Pointer to the PCI device.
> + *
> + * @return
> + * 0 on success, the function cannot fail.
> + */
> +static int nfb_eth_pci_remove(struct rte_pci_device *pci_dev)
> +{
> + return rte_eth_dev_pci_generic_remove(pci_dev, nfb_eth_dev_uninit);
> +}
> +
> +static struct rte_pci_driver nfb_eth_driver = {
> + .id_table = nfb_pci_id_table,
> + .probe = nfb_eth_pci_probe,
> + .remove = nfb_eth_pci_remove,
> +};
> +
> +RTE_PMD_REGISTER_PCI(RTE_NFB_DRIVER_NAME, nfb_eth_driver);
> +RTE_PMD_REGISTER_PCI_TABLE(RTE_NFB_DRIVER_NAME, nfb_pci_id_table);
> +RTE_PMD_REGISTER_KMOD_DEP(RTE_NFB_DRIVER_NAME, "* nfb");
> diff --git a/drivers/net/nfb/nfb_rx.c b/drivers/net/nfb/nfb_rx.c
> new file mode 100644
> index 0000000..dc1cd2d
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_rx.c
> @@ -0,0 +1,127 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +#include "nfb_rx.h"
> +#include "nfb.h"
> +
> +
> +int
> +nfb_eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rxq_id)
> +{
> + struct ndp_rx_queue *rxq = dev->data->rx_queues[rxq_id];
> +
> + if (rxq->queue == NULL) {
> + RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
> + return -EINVAL;
> + }
> +
> + int ret = ndp_queue_start(rxq->queue);
> + if (ret != 0)
> + goto err;
> + dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STARTED;
> + return 0;
> +
> +err:
> + return -EINVAL;
> +}
> +
> +
> +
> +int
> +nfb_eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rxq_id)
> +{
> + struct ndp_rx_queue *rxq = dev->data->rx_queues[rxq_id];
> +
> + if (rxq->queue == NULL) {
> + RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
> + return -EINVAL;
> + }
> +
> + int ret = ndp_queue_stop(rxq->queue);
> + if (ret != 0)
> + return -EINVAL;
> +
> + dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
> + return 0;
> +}
> +
> +int
> +nfb_eth_rx_queue_setup(struct rte_eth_dev *dev,
> + uint16_t rx_queue_id,
> + uint16_t nb_rx_desc __rte_unused,
> + unsigned int socket_id,
> + const struct rte_eth_rxconf *rx_conf __rte_unused,
> + struct rte_mempool *mb_pool)
> +{
> + struct pmd_internals *internals = dev->data->dev_private;
> +
> + struct ndp_rx_queue *rxq;
> +
> + rxq = rte_zmalloc_socket("ndp rx queue",
> + sizeof(struct ndp_rx_queue),
> + RTE_CACHE_LINE_SIZE, socket_id);
> +
> + if (rxq == NULL) {
> + RTE_LOG(ERR, PMD, "rte_zmalloc_socket() failed for rx
> queue id "
> + "%" PRIu16 "!\n", rx_queue_id);
> + return -ENOMEM;
> + }
> +
> + int ret = nfb_eth_rx_queue_init(internals->nfb,
> + rx_queue_id,
> + dev->data->port_id,
> + mb_pool,
> + rxq);
> +
> + if (ret == 0)
> + dev->data->rx_queues[rx_queue_id] = rxq;
> + else
> + rte_free(rxq);
> +
> + return ret;
> +}
> +
> +int
> +nfb_eth_rx_queue_init(struct nfb_device *nfb,
> + uint16_t rx_queue_id,
> + uint16_t port_id,
> + struct rte_mempool *mb_pool,
> + struct ndp_rx_queue *rxq)
> +{
> + if (nfb == NULL)
> + return -EINVAL;
> +
> + rxq->queue = ndp_open_rx_queue(nfb, rx_queue_id);
> + if (rxq->queue == NULL)
> + return -EINVAL;
> +
> + rxq->nfb = nfb;
> + rxq->rx_queue_id = rx_queue_id;
> + rxq->in_port = port_id;
> + rxq->mb_pool = mb_pool;
> +
> + const struct rte_pktmbuf_pool_private *mbp_priv =
> + rte_mempool_get_priv(mb_pool);
> + rxq->buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
> + RTE_PKTMBUF_HEADROOM);
> +
> + rxq->rx_pkts = 0;
> + rxq->rx_bytes = 0;
> + rxq->err_pkts = 0;
> +
> + return 0;
> +}
> +
> +void
> +nfb_eth_rx_queue_release(void *q)
> +{
> + struct ndp_rx_queue *rxq = (struct ndp_rx_queue *)q;
> + if (rxq->queue != NULL) {
> + ndp_close_rx_queue(rxq->queue);
> + rte_free(rxq);
> + rxq->queue = NULL;
> + }
> +}
> diff --git a/drivers/net/nfb/nfb_rx.h b/drivers/net/nfb/nfb_rx.h
> new file mode 100644
> index 0000000..b356f5d
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_rx.h
> @@ -0,0 +1,226 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +
> +
> +#ifndef _NFB_RX_H_
> +#define _NFB_RX_H_
> +
> +#include <stdint.h>
> +#include <unistd.h>
> +#include <stdbool.h>
> +#include <err.h>
> +#include <sys/types.h>
> +
> +#include <sys/mman.h>
> +
> +#include <nfb/nfb.h>
> +#include <nfb/ndp.h>
> +
> +
> +#include <rte_mbuf.h>
> +#include <rte_ethdev.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_dev.h>
> +
> +struct ndp_rx_queue {
> + struct nfb_device *nfb; /* nfb dev structure */
> + struct ndp_queue *queue; /* rx queue */
> + uint16_t rx_queue_id; /* index */
> + uint8_t in_port; /* port */
> +
> + struct rte_mempool *mb_pool; /* memory pool to allocate packets */
> + uint16_t buf_size; /* mbuf size */
> +
> + volatile uint64_t rx_pkts; /* packets read */
> + volatile uint64_t rx_bytes; /* bytes read */
> + volatile uint64_t err_pkts; /* erroneous packets */
> +};
> +
> +/**
> + * Initialize ndp_rx_queue structure
> + *
> + * @param nfb
> + * Pointer to nfb device structure.
> + * @param rx_queue_id
> + * RX queue index.
> + * @param port_id
> + * Device [external] port identifier.
> + * @param mb_pool
> + * Memory pool for buffer allocations.
> + * @param[out] rxq
> + * Pointer to ndp_rx_queue output structure
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_rx_queue_init(struct nfb_device *nfb,
> + uint16_t rx_queue_id,
> + uint16_t port_id,
> + struct rte_mempool *mb_pool,
> + struct ndp_rx_queue *rxq);
> +
> +
> +/**
> + * DPDK callback to setup a RX queue for use.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param idx
> + * RX queue index.
> + * @param desc
> + * Number of descriptors to configure in queue.
> + * @param socket
> + * NUMA socket on which memory must be allocated.
> + * @param[in] conf
> + * Thresholds parameters.
> + * @param mb_pool
> + * Memory pool for buffer allocations.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_rx_queue_setup(struct rte_eth_dev *dev,
> + uint16_t rx_queue_id,
> + uint16_t nb_rx_desc __rte_unused,
> + unsigned int socket_id,
> + const struct rte_eth_rxconf *rx_conf __rte_unused,
> + struct rte_mempool *mb_pool);
> +
> +
> +/**
> + * DPDK callback to release a RX queue.
> + *
> + * @param dpdk_rxq
> + * Generic RX queue pointer.
> + */
> +void
> +nfb_eth_rx_queue_release(void *q);
> +
> +/**
> + * Start traffic on Rx queue.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param txq_id
> + * RX queue index.
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rxq_id);
> +
> +/**
> + * Stop traffic on Rx queue.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param txq_id
> + * RX queue index.
> + */
> +int
> +nfb_eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rxq_id);
> +
> +/**
> + * DPDK callback for RX.
> + *
> + * @param dpdk_rxq
> + * Generic pointer to RX queue structure.
> + * @param[out] bufs
> + * Array to store received packets.
> + * @param nb_pkts
> + * Maximum number of packets in array.
> + *
> + * @return
> + * Number of packets successfully received (<= nb_pkts).
> + */
> +static __rte_always_inline uint16_t
> +nfb_eth_ndp_rx(void *queue,
> + struct rte_mbuf **bufs,
> + uint16_t nb_pkts)
> +{
> + struct ndp_rx_queue *ndp = queue;
> +
> + if (unlikely(ndp->queue == NULL || nb_pkts == 0)) {
> + RTE_LOG(ERR, PMD, "RX invalid arguments!\n");
> + return 0;
> + }
> +
> + struct rte_mbuf *mbufs[nb_pkts];
> +
> + unsigned int i;
> + // returns either all or nothing
> + i = rte_pktmbuf_alloc_bulk(ndp->mb_pool, mbufs, nb_pkts);
> + if (unlikely(i != 0))
> + return 0;
> +
> + uint16_t packet_size;
> + uint64_t num_bytes = 0;
> + const uint16_t buf_size = ndp->buf_size;
> +
> + struct rte_mbuf *mbuf;
> + struct ndp_packet packets[nb_pkts];
> +
> +
> + uint16_t num_rx = ndp_rx_burst_get(ndp->queue, packets, nb_pkts);
> +
> + if (unlikely(num_rx != nb_pkts)) {
> + for (i = num_rx; i < nb_pkts; i++)
> + rte_pktmbuf_free(mbufs[i]);
> + }
> +
> + nb_pkts = num_rx;
> +
> + num_rx = 0;
> + /*
> + * Reads the given number of packets from NDP queue given
> + * by queue and copies the packet data into a newly allocated mbuf
> + * to return.
> + */
> + for (i = 0; i < nb_pkts; ++i) {
> + mbuf = mbufs[i];
> +
> + /* get the space available for data in the mbuf */
> + packet_size = packets[i].data_length;
> +
> + if (likely(packet_size <= buf_size)) {
> + /* NDP packet will fit in one mbuf, go ahead and
> copy */
> + rte_memcpy(rte_pktmbuf_mtod(mbuf, void *),
> + packets[i].data, packet_size);
> +
> + mbuf->data_len = (uint16_t)packet_size;
> +
> + mbuf->pkt_len = packet_size;
> + mbuf->port = ndp->in_port;
> + bufs[num_rx++] = mbuf;
> + num_bytes += packet_size;
> + } else {
> + /*
> + * NDP packet will not fit in one mbuf,
> + * scattered mode is not enabled, drop packet
> + */
> + RTE_LOG(ERR, PMD,
> + "NDP segment %d bytes will not fit in one
> mbuf "
> + "(%d bytes), scattered mode is not
> enabled, "
> + "drop packet!!\n",
> + packet_size, buf_size);
> + rte_pktmbuf_free(mbuf);
> + }
> + }
> +
> +
> + ndp_rx_burst_put(ndp->queue);
> +
> + ndp->rx_pkts += num_rx;
> + ndp->rx_bytes += num_bytes;
> + return num_rx;
> +}
> +
> +
> +
> +#endif /* _NFB_RX_H_ */
> diff --git a/drivers/net/nfb/nfb_rxmode.c b/drivers/net/nfb/nfb_rxmode.c
> new file mode 100644
> index 0000000..8a63507
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_rxmode.c
> @@ -0,0 +1,104 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +
> +#include "nfb_rxmode.h"
> +#include "nfb.h"
> +
> +void
> +nfb_eth_promiscuous_enable(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + internals->rx_filter_original = RXMAC_MAC_FILTER_PROMISCUOUS;
> +
> +
> + uint16_t i;
> + for (i = 0; i < internals->max_rxmac; ++i) {
> + nc_rxmac_mac_filter_enable(internals->rxmac[i],
> + RXMAC_MAC_FILTER_PROMISCUOUS);
> + }
> +}
> +
> +void
> +nfb_eth_promiscuous_disable(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + internals->rx_filter_original = RXMAC_MAC_FILTER_TABLE;
> +
> +
> + // if promisc is not enabled, do nothing
> + if (!nfb_eth_promiscuous_get(dev))
> + return;
> +
> + uint16_t i;
> + for (i = 0; i < internals->max_rxmac; ++i) {
> + nc_rxmac_mac_filter_enable(internals->rxmac[i],
> + RXMAC_MAC_FILTER_TABLE);
> + }
> +}
> +
> +int
> +nfb_eth_promiscuous_get(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + struct nc_rxmac_status status;
> + status.mac_filter = RXMAC_MAC_FILTER_PROMISCUOUS;
> +
> + nc_rxmac_read_status(internals->rxmac[0], &status);
> +
> + return (status.mac_filter == RXMAC_MAC_FILTER_PROMISCUOUS);
> +}
> +
> +void
> +nfb_eth_allmulticast_enable(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + uint16_t i;
> + for (i = 0; i < internals->max_rxmac; ++i) {
> + nc_rxmac_mac_filter_enable(internals->rxmac[i],
> + RXMAC_MAC_FILTER_TABLE_BCAST_MCAST);
> + }
> +}
> +
> +void
> +nfb_eth_allmulticast_disable(struct rte_eth_dev *dev)
> +{
> + // if multicast is not enabled do nothing
> + if (!nfb_eth_allmulticast_get(dev))
> + return;
> +
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> +
> + uint16_t i;
> + for (i = 0; i < internals->max_rxmac; ++i) {
> + nc_rxmac_mac_filter_enable(internals->rxmac[i],
> + internals->rx_filter_original);
> + }
> +}
> +
> +int
> +nfb_eth_allmulticast_get(struct rte_eth_dev *dev)
> +{
> + struct pmd_internals *internals = (struct pmd_internals *)
> + dev->data->dev_private;
> +
> + struct nc_rxmac_status status;
> + status.mac_filter = RXMAC_MAC_FILTER_PROMISCUOUS;
> + nc_rxmac_read_status(internals->rxmac[0], &status);
> +
> +
> + return (status.mac_filter == RXMAC_MAC_FILTER_TABLE_BCAST_MCAST);
> +}
> diff --git a/drivers/net/nfb/nfb_rxmode.h b/drivers/net/nfb/nfb_rxmode.h
> new file mode 100644
> index 0000000..2a72b10
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_rxmode.h
> @@ -0,0 +1,81 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +#ifndef _NFB_RXMODE_H_
> +#define _NFB_RXMODE_H_
> +
> +#include <stdint.h>
> +#include <unistd.h>
> +#include <stdbool.h>
> +#include <err.h>
> +#include <sys/types.h>
> +
> +#include <sys/mman.h>
> +
> +#include <nfb/nfb.h>
> +#include <nfb/ndp.h>
> +
> +#include <rte_ethdev.h>
> +#include <rte_dev.h>
> +
> +/**
> + * Getter for promiscuous mode
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @return 1 if enabled 0 otherwise
> + */
> +int
> +nfb_eth_promiscuous_get(struct rte_eth_dev *dev);
> +
> +/**
> + * DPDK callback to enable promiscuous mode.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +void
> +nfb_eth_promiscuous_enable(struct rte_eth_dev *dev);
> +
> +/**
> + * DPDK callback to disable promiscuous mode.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +void
> +nfb_eth_promiscuous_disable(struct rte_eth_dev *dev);
> +
> +/**
> + * Getter for allmulticast mode
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @return 1 if enabled 0 otherwise
> + */
> +int
> +nfb_eth_allmulticast_get(struct rte_eth_dev *dev);
> +
> +/**
> + * DPDK callback to enable allmulticast mode.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +void
> +nfb_eth_allmulticast_enable(struct rte_eth_dev *dev);
> +
> +/**
> + * DPDK callback to disable allmulticast mode.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +void
> +nfb_eth_allmulticast_disable(struct rte_eth_dev *dev);
> +
> +
> +
> +
> +#endif /* _NFB_RXMODE_H_ */
> diff --git a/drivers/net/nfb/nfb_stats.c b/drivers/net/nfb/nfb_stats.c
> new file mode 100644
> index 0000000..f2750e4
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_stats.c
> @@ -0,0 +1,79 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +
> +#include "nfb_stats.h"
> +#include "nfb.h"
> +
> +int
> +nfb_eth_stats_get(struct rte_eth_dev *dev,
> + struct rte_eth_stats *stats)
> +{
> + uint16_t i;
> + uint16_t nb_rx = dev->data->nb_rx_queues;
> + uint16_t nb_tx = dev->data->nb_tx_queues;
> + uint64_t rx_total = 0;
> + uint64_t tx_total = 0;
> + uint64_t tx_err_total = 0;
> + uint64_t rx_total_bytes = 0;
> + uint64_t tx_total_bytes = 0;
> +
> + struct ndp_rx_queue *rx_queue = *((struct ndp_rx_queue **)
> + dev->data->rx_queues);
> + struct ndp_tx_queue *tx_queue = *((struct ndp_tx_queue **)
> + dev->data->tx_queues);
> +
> + for (i = 0; i < nb_rx; i++) {
> + if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
> + stats->q_ipackets[i] = rx_queue[i].rx_pkts;
> + stats->q_ibytes[i] = rx_queue[i].rx_bytes;
> + }
> + rx_total += stats->q_ipackets[i];
> + rx_total_bytes += stats->q_ibytes[i];
> + }
> +
> + for (i = 0; i < nb_tx; i++) {
> + if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
> + stats->q_opackets[i] = tx_queue[i].tx_pkts;
> + stats->q_obytes[i] = tx_queue[i].tx_bytes;
> + stats->q_errors[i] = tx_queue[i].err_pkts;
> + }
> + tx_total += stats->q_opackets[i];
> + tx_total_bytes += stats->q_obytes[i];
> + tx_err_total += stats->q_errors[i];
> + }
> +
> + stats->ipackets = rx_total;
> + stats->opackets = tx_total;
> + stats->ibytes = rx_total_bytes;
> + stats->obytes = tx_total_bytes;
> + stats->oerrors = tx_err_total;
> + return 0;
> +}
> +
> +void
> +nfb_eth_stats_reset(struct rte_eth_dev *dev)
> +{
> + uint16_t i;
> + uint16_t nb_rx = dev->data->nb_rx_queues;
> + uint16_t nb_tx = dev->data->nb_tx_queues;
> +
> + struct ndp_rx_queue *rx_queue = *((struct ndp_rx_queue **)
> + dev->data->rx_queues);
> + struct ndp_tx_queue *tx_queue = *((struct ndp_tx_queue **)
> + dev->data->tx_queues);
> +
> + for (i = 0; i < nb_rx; i++) {
> + rx_queue[i].rx_pkts = 0;
> + rx_queue[i].rx_bytes = 0;
> + rx_queue[i].err_pkts = 0;
> + }
> + for (i = 0; i < nb_tx; i++) {
> + tx_queue[i].tx_pkts = 0;
> + tx_queue[i].tx_bytes = 0;
> + tx_queue[i].err_pkts = 0;
> + }
> +}
> diff --git a/drivers/net/nfb/nfb_stats.h b/drivers/net/nfb/nfb_stats.h
> new file mode 100644
> index 0000000..d89ca4c
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_stats.h
> @@ -0,0 +1,52 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +#ifndef _NFB_STATS_H_
> +#define _NFB_STATS_H_
> +
> +#include <stdint.h>
> +#include <unistd.h>
> +#include <stdbool.h>
> +#include <err.h>
> +#include <sys/types.h>
> +
> +#include <sys/mman.h>
> +
> +#include <nfb/nfb.h>
> +#include <nfb/ndp.h>
> +
> +#include <rte_mbuf.h>
> +#include <rte_ethdev.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_dev.h>
> +
> +/**
> + * DPDK callback to get device statistics.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param[out] stats
> + * Stats structure output buffer.
> + *
> + * @return
> + * 0 on success and stats is filled, negative errno value otherwise and
> + * rte_errno is set.
> + */
> +int nfb_eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats
> *stats);
> +
> +/**
> + * DPDK callback to clear device statistics.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + */
> +void nfb_eth_stats_reset(struct rte_eth_dev *dev);
> +
> +
> +
> +
> +#endif /* _NFB_STATS_H_ */
> diff --git a/drivers/net/nfb/nfb_tx.c b/drivers/net/nfb/nfb_tx.c
> new file mode 100644
> index 0000000..efaaa2b
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_tx.c
> @@ -0,0 +1,112 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +
> +#include "nfb_tx.h"
> +#include "nfb.h"
> +
> +int
> +nfb_eth_tx_queue_start(struct rte_eth_dev *dev, uint16_t txq_id)
> +{
> + struct ndp_tx_queue *txq = dev->data->tx_queues[txq_id];
> +
> + if (txq->queue == NULL) {
> + RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
> + return -EINVAL;
> + }
> +
> + int ret = ndp_queue_start(txq->queue);
> + if (ret != 0)
> + goto err;
> + dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STARTED;
> + return 0;
> +
> +err:
> + return -EINVAL;
> +}
> +
> +int
> +nfb_eth_tx_queue_stop(struct rte_eth_dev *dev, uint16_t txq_id)
> +{
> + struct ndp_tx_queue *txq = dev->data->tx_queues[txq_id];
> +
> + if (txq->queue != NULL) {
> + RTE_LOG(ERR, PMD, "TX NDP queue is NULL!\n");
> + return -EINVAL;
> + }
> +
> + int ret = ndp_queue_stop(txq->queue);
> + if (ret != 0)
> + return -EINVAL;
> + dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
> + return 0;
> +}
> +
> +int
> +nfb_eth_tx_queue_setup(struct rte_eth_dev *dev,
> + uint16_t tx_queue_id,
> + uint16_t nb_tx_desc __rte_unused,
> + unsigned int socket_id,
> + const struct rte_eth_txconf *tx_conf __rte_unused)
> +{
> + struct pmd_internals *internals = dev->data->dev_private;
> +
> + struct ndp_tx_queue *txq;
> +
> + txq = rte_zmalloc_socket("ndp tx queue",
> + sizeof(struct ndp_tx_queue),
> + RTE_CACHE_LINE_SIZE, socket_id);
> +
> + if (txq == NULL) {
> + RTE_LOG(ERR, PMD, "rte_zmalloc_socket() failed for tx
> queue id "
> + "%" PRIu16 "!\n", tx_queue_id);
> + return -ENOMEM;
> + }
> +
> + int ret = nfb_eth_tx_queue_init(internals->nfb,
> + tx_queue_id,
> + txq);
> +
> + if (ret == 0)
> + dev->data->tx_queues[tx_queue_id] = txq;
> + else
> + rte_free(txq);
> +
> + return ret;
> +}
> +
> +int
> +nfb_eth_tx_queue_init(struct nfb_device *nfb,
> + uint16_t tx_queue_id,
> + struct ndp_tx_queue *txq)
> +{
> + if (nfb == NULL)
> + return -EINVAL;
> +
> + txq->queue = ndp_open_tx_queue(nfb, tx_queue_id);
> + if (txq->queue == NULL)
> + return -EINVAL;
> +
> + txq->nfb = nfb;
> + txq->tx_queue_id = tx_queue_id;
> +
> + txq->tx_pkts = 0;
> + txq->tx_bytes = 0;
> + txq->err_pkts = 0;
> +
> + return 0;
> +}
> +
> +void
> +nfb_eth_tx_queue_release(void *q)
> +{
> + struct ndp_tx_queue *txq = (struct ndp_tx_queue *)q;
> + if (txq->queue != NULL) {
> + ndp_close_tx_queue(txq->queue);
> + rte_free(txq);
> + txq->queue = NULL;
> + }
> +}
> diff --git a/drivers/net/nfb/nfb_tx.h b/drivers/net/nfb/nfb_tx.h
> new file mode 100644
> index 0000000..3ceb3bf
> --- /dev/null
> +++ b/drivers/net/nfb/nfb_tx.h
> @@ -0,0 +1,209 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Cesnet
> + * Copyright(c) 2018 Netcope Technologies, a.s. <info at netcope.com>
> + * All rights reserved.
> + */
> +
> +#ifndef _NFB_TX_H_
> +#define _NFB_TX_H_
> +
> +#include <stdint.h>
> +#include <unistd.h>
> +#include <stdbool.h>
> +#include <err.h>
> +#include <sys/types.h>
> +
> +#include <sys/mman.h>
> +
> +#include <nfb/nfb.h>
> +#include <nfb/ndp.h>
> +
> +#include <rte_mbuf.h>
> +#include <rte_ethdev.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_dev.h>
> +
> +struct ndp_tx_queue {
> + struct nfb_device *nfb; /* nfb dev structure */
> + struct ndp_queue *queue; /* tx queue */
> + uint16_t tx_queue_id; /* index */
> + volatile uint64_t tx_pkts; /* packets transmitted */
> + volatile uint64_t tx_bytes; /* bytes transmitted */
> + volatile uint64_t err_pkts; /* erroneous packets */
> +};
> +
> +
> +/**
> + * DPDK callback to setup a TX queue for use.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param idx
> + * RX queue index.
> + * @param desc
> + * Number of descriptors to configure in queue.
> + * @param socket
> + * NUMA socket on which memory must be allocated.
> + * @param[in] conf
> + * Thresholds parameters.
> + * @param mp
> + * Memory pool for buffer allocations.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_tx_queue_setup(struct rte_eth_dev *dev,
> + uint16_t tx_queue_id,
> + uint16_t nb_tx_desc __rte_unused,
> + unsigned int socket_id,
> + const struct rte_eth_txconf *tx_conf __rte_unused);
> +
> +/**
> + * Initialize ndp_tx_queue structure
> + *
> + * @param nfb
> + * Pointer to nfb device structure.
> + * @param tx_queue_id
> + * TX queue index.
> + * @param[out] txq
> + * Pointer to ndp_tx_queue output structure
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_tx_queue_init(struct nfb_device *nfb,
> + uint16_t tx_queue_id,
> + struct ndp_tx_queue *txq);
> +
> +/**
> + * DPDK callback to release a RX queue.
> + *
> + * @param dpdk_rxq
> + * Generic RX queue pointer.
> + */
> +void
> +nfb_eth_tx_queue_release(void *q);
> +
> +
> +/**
> + * Start traffic on Tx queue.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param txq_id
> + * TX queue index.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_tx_queue_start(struct rte_eth_dev *dev, uint16_t txq_id);
> +
> +/**
> + * Stop traffic on Tx queue.
> + *
> + * @param dev
> + * Pointer to Ethernet device structure.
> + * @param txq_id
> + * TX queue index.
> + *
> + * @return
> + * 0 on success, a negative errno value otherwise and rte_errno is set.
> + */
> +int
> +nfb_eth_tx_queue_stop(struct rte_eth_dev *dev, uint16_t txq_id);
> +
> +/**
> + * DPDK callback for TX.
> + *
> + * @param dpdk_txq
> + * Generic pointer to TX queue structure.
> + * @param bufs
> + * Packets to transmit.
> + * @param nb_pkts
> + * Number of packets in array.
> + *
> + * @return
> + * Number of packets successfully transmitted (<= nb_pkts).
> + */
> +static __rte_always_inline uint16_t
> +nfb_eth_ndp_tx(void *queue,
> + struct rte_mbuf **bufs,
> + uint16_t nb_pkts)
> +{
> + int i;
> + struct rte_mbuf *mbuf;
> + struct ndp_tx_queue *ndp = queue;
> + uint16_t num_tx = 0;
> + uint64_t num_bytes = 0;
> +
> + void *dst;
> + uint32_t pkt_len;
> + uint8_t mbuf_segs;
> +
> + struct ndp_packet packets[nb_pkts];
> +
> + if (unlikely(ndp->queue == NULL || nb_pkts == 0)) {
> + RTE_LOG(ERR, PMD, "RX invalid arguments!\n");
> + return 0;
> + }
> +
> + for (i = 0; i < nb_pkts; i++) {
> + packets[i].data_length = bufs[i]->pkt_len;
> + packets[i].header_length = 0;
> + }
> +
> + num_tx = ndp_tx_burst_get(ndp->queue, packets, nb_pkts);
> +
> + if (unlikely(num_tx != nb_pkts))
> + return 0;
> +
> + for (i = 0; i < nb_pkts; ++i) {
> + mbuf = bufs[i];
> +
> + pkt_len = mbuf->pkt_len;
> + mbuf_segs = mbuf->nb_segs;
> +
> + num_bytes += pkt_len;
> + if (mbuf_segs == 1) {
> + /*
> + * non-scattered packet,
> + * transmit from one mbuf
> + */
> + rte_memcpy(packets[i].data,
> + rte_pktmbuf_mtod(mbuf, const void *),
> + pkt_len);
> + } else {
> + /* scattered packet, transmit from more mbufs */
> + struct rte_mbuf *m = mbuf;
> + while (m) {
> + dst = packets[i].data;
> +
> + rte_memcpy(dst,
> + rte_pktmbuf_mtod(m,
> + const void *),
> + m->data_len);
> + dst = ((uint8_t *)(dst)) +
> + m->data_len;
> + m = m->next;
> + }
> + }
> +
> + rte_pktmbuf_free(mbuf);
> + }
> +
> + ndp_tx_burst_flush(ndp->queue);
> +
> + ndp->tx_pkts += num_tx;
> + ndp->err_pkts += nb_pkts - num_tx;
> + ndp->tx_bytes += num_bytes;
> + return num_tx;
> +}
> +
> +
> +
> +
> +#endif /* _NFB_TX_H_ */
> diff --git a/examples/skeleton/basicfwd.c b/examples/skeleton/basicfwd.c
> deleted file mode 100644
> index 4aba1dc..0000000
> --- a/examples/skeleton/basicfwd.c
> +++ /dev/null
> @@ -1,198 +0,0 @@
> -/* SPDX-License-Identifier: BSD-3-Clause
> - * Copyright(c) 2010-2015 Intel Corporation
> - */
> -
> -#include <stdint.h>
> -#include <inttypes.h>
> -#include <rte_eal.h>
> -#include <rte_ethdev.h>
> -#include <rte_cycles.h>
> -#include <rte_lcore.h>
> -#include <rte_mbuf.h>
> -
> -#define RX_RING_SIZE 1024
> -#define TX_RING_SIZE 1024
> -
> -#define NUM_MBUFS 8191
> -#define MBUF_CACHE_SIZE 250
> -#define BURST_SIZE 32
> -
> -static const struct rte_eth_conf port_conf_default = {
> - .rxmode = {
> - .max_rx_pkt_len = ETHER_MAX_LEN,
> - },
> -};
> -
> -/* basicfwd.c: Basic DPDK skeleton forwarding example. */
> -
> -/*
> - * Initializes a given port using global settings and with the RX buffers
> - * coming from the mbuf_pool passed as a parameter.
> - */
> -static inline int
> -port_init(uint16_t port, struct rte_mempool *mbuf_pool)
> -{
> - struct rte_eth_conf port_conf = port_conf_default;
> - const uint16_t rx_rings = 1, tx_rings = 1;
> - uint16_t nb_rxd = RX_RING_SIZE;
> - uint16_t nb_txd = TX_RING_SIZE;
> - int retval;
> - uint16_t q;
> - struct rte_eth_dev_info dev_info;
> - struct rte_eth_txconf txconf;
> -
> - if (!rte_eth_dev_is_valid_port(port))
> - return -1;
> -
> - rte_eth_dev_info_get(port, &dev_info);
> - if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
> - port_conf.txmode.offloads |=
> - DEV_TX_OFFLOAD_MBUF_FAST_FREE;
> -
> - /* Configure the Ethernet device. */
> - retval = rte_eth_dev_configure(port, rx_rings, tx_rings,
> &port_conf);
> - if (retval != 0)
> - return retval;
> -
> - retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd);
> - if (retval != 0)
> - return retval;
> -
> - /* Allocate and set up 1 RX queue per Ethernet port. */
> - for (q = 0; q < rx_rings; q++) {
> - retval = rte_eth_rx_queue_setup(port, q, nb_rxd,
> - rte_eth_dev_socket_id(port), NULL,
> mbuf_pool);
> - if (retval < 0)
> - return retval;
> - }
> -
> - txconf = dev_info.default_txconf;
> - txconf.offloads = port_conf.txmode.offloads;
> - /* Allocate and set up 1 TX queue per Ethernet port. */
> - for (q = 0; q < tx_rings; q++) {
> - retval = rte_eth_tx_queue_setup(port, q, nb_txd,
> - rte_eth_dev_socket_id(port), &txconf);
> - if (retval < 0)
> - return retval;
> - }
> -
> - /* Start the Ethernet port. */
> - retval = rte_eth_dev_start(port);
> - if (retval < 0)
> - return retval;
> -
> - /* Display the port MAC address. */
> - struct ether_addr addr;
> - rte_eth_macaddr_get(port, &addr);
> - printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
> - " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
> - port,
> - addr.addr_bytes[0], addr.addr_bytes[1],
> - addr.addr_bytes[2], addr.addr_bytes[3],
> - addr.addr_bytes[4], addr.addr_bytes[5]);
> -
> - /* Enable RX in promiscuous mode for the Ethernet device. */
> - rte_eth_promiscuous_enable(port);
> -
> - return 0;
> -}
> -
> -/*
> - * The lcore main. This is the main thread that does the work, reading
> from
> - * an input port and writing to an output port.
> - */
> -static __attribute__((noreturn)) void
> -lcore_main(void)
> -{
> - uint16_t port;
> -
> - /*
> - * Check that the port is on the same NUMA node as the polling
> thread
> - * for best performance.
> - */
> - RTE_ETH_FOREACH_DEV(port)
> - if (rte_eth_dev_socket_id(port) > 0 &&
> - rte_eth_dev_socket_id(port) !=
> - (int)rte_socket_id())
> - printf("WARNING, port %u is on remote NUMA node to
> "
> - "polling thread.\n\tPerformance
> will "
> - "not be optimal.\n", port);
> -
> - printf("\nCore %u forwarding packets. [Ctrl+C to quit]\n",
> - rte_lcore_id());
> -
> - /* Run until the application is quit or killed. */
> - for (;;) {
> - /*
> - * Receive packets on a port and forward them on the paired
> - * port. The mapping is 0 -> 1, 1 -> 0, 2 -> 3, 3 -> 2,
> etc.
> - */
> - RTE_ETH_FOREACH_DEV(port) {
> -
> - /* Get burst of RX packets, from first port of
> pair. */
> - struct rte_mbuf *bufs[BURST_SIZE];
> - const uint16_t nb_rx = rte_eth_rx_burst(port, 0,
> - bufs, BURST_SIZE);
> -
> - if (unlikely(nb_rx == 0))
> - continue;
> -
> - /* Send burst of TX packets, to second port of
> pair. */
> - const uint16_t nb_tx = rte_eth_tx_burst(port ^ 1,
> 0,
> - bufs, nb_rx);
> -
> - /* Free any unsent packets. */
> - if (unlikely(nb_tx < nb_rx)) {
> - uint16_t buf;
> - for (buf = nb_tx; buf < nb_rx; buf++)
> - rte_pktmbuf_free(bufs[buf]);
> - }
> - }
> - }
> -}
> -
> -/*
> - * The main function, which does initialization and calls the per-lcore
> - * functions.
> - */
> -int
> -main(int argc, char *argv[])
> -{
> - struct rte_mempool *mbuf_pool;
> - unsigned nb_ports;
> - uint16_t portid;
> -
> - /* Initialize the Environment Abstraction Layer (EAL). */
> - int ret = rte_eal_init(argc, argv);
> - if (ret < 0)
> - rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
> -
> - argc -= ret;
> - argv += ret;
> -
> - /* Check that there is an even number of ports to send/receive on.
> */
> - nb_ports = rte_eth_dev_count_avail();
> - if (nb_ports < 2 || (nb_ports & 1))
> - rte_exit(EXIT_FAILURE, "Error: number of ports must be
> even\n");
> -
> - /* Creates a new mempool in memory to hold the mbufs. */
> - mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS *
> nb_ports,
> - MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
> rte_socket_id());
> -
> - if (mbuf_pool == NULL)
> - rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
> -
> - /* Initialize all ports. */
> - RTE_ETH_FOREACH_DEV(portid)
> - if (port_init(portid, mbuf_pool) != 0)
> - rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16
> "\n",
> - portid);
> -
> - if (rte_lcore_count() > 1)
> - printf("\nWARNING: Too many lcores enabled. Only 1
> used.\n");
> -
> - /* Call lcore_main on the master core only. */
> - lcore_main();
> -
> - return 0;
> -}
> diff --git a/mk/rte.app.mk b/mk/rte.app.mk
> index 8a4f0f4..32e88b5 100644
> --- a/mk/rte.app.mk
> +++ b/mk/rte.app.mk
> @@ -196,6 +196,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) +=
> -lrte_pmd_softnic
> endif
> _LDLIBS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += -lrte_pmd_sfc_efx
> _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SZEDATA2) += -lrte_pmd_szedata2 -lsze2
> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_NFB) += -lrte_pmd_nfb -lnfb -lfdt
> _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += -lrte_pmd_tap
> _LDLIBS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) +=
> -lrte_pmd_thunderx_nicvf
> _LDLIBS-$(CONFIG_RTE_LIBRTE_VDEV_NETVSC_PMD) += -lrte_pmd_vdev_netvsc
> --
> 1.8.3.1
>
>
--
regards,
Rami Rosen
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