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net/nfb: add new netcope driver

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Added new net driver for Netcope nfb cards

Signed-off-by: Rastislav Cernay <cernay@netcope.com>
This commit is contained in:
Rastislav Cernay 2019-04-07 17:03:21 +02:00 committed by Ferruh Yigit
parent 756cea41e9
commit 6435f9a0ac
23 changed files with 1793 additions and 0 deletions
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7
MAINTAINERS
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@ -687,6 +687,13 @@ F: drivers/net/szedata2/
F: doc/guides/nics/szedata2.rst
F: doc/guides/nics/features/szedata2.ini
Netcope nfb
M: Rastislav Cernay <cernay@netcope.com>
M: Jan Remes <remes@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@netronome.com>
F: drivers/net/nfp/

5
config/common_base
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@ -375,6 +375,11 @@ CONFIG_RTE_LIBRTE_SFC_EFX_DEBUG=n
#
CONFIG_RTE_LIBRTE_PMD_SZEDATA2=n
#
# Compile software PMD backed by NFB device
#
CONFIG_RTE_LIBRTE_NFB_PMD=n
#
# Compile burst-oriented Cavium Thunderx NICVF PMD driver
#

1
devtools/test-build.sh
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@ -19,6 +19,7 @@ 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)

17
doc/guides/nics/features/nfb.ini Normal file
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@ -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

1
doc/guides/nics/index.rst
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@ -40,6 +40,7 @@ Network Interface Controller Drivers
mvneta
mvpp2
netvsc
nfb
nfp
octeontx
qede

144
doc/guides/nics/nfb.rst Normal file
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@ -0,0 +1,144 @@
.. SPDX-License-Identifier: BSD-3-Clause
Copyright 2019 Cesnet
Copyright 2019 Netcope Technologies
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_NFB_PMD=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://www.netcope.com/en/company/community-support/dpdk-libsze2#NFB>`_.
Versions of the packages
~~~~~~~~~~~~~~~~~~~~~~~~
The minimum version of the provided packages:
* for DPDK from 19.05
Configuration
-------------
These configuration options can be modified before compilation in the
``.config`` file:
* ``CONFIG_RTE_LIBRTE_NFB_PMD`` 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.*
:align: center
NFB-200G2QL high-level diagram
Limitations
-----------
Driver is usable only on Linux architecture, namely on CentOS.
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>

5
doc/guides/rel_notes/release_19_05.rst
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@ -84,6 +84,11 @@ New Features
and receive raw packets through the socket which would bypass the kernel
network stack to achieve high performance packet processing.
* **Added a net PMD NFB.**
Added the new ``nfb`` net driver for Netcope NFB cards. See
the :doc:`../nics/nfb` NIC guide for more details on this new driver.
* **Updated Solarflare network PMD.**
Updated the sfc_efx driver including the following changes:

1
drivers/net/Makefile
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@ -39,6 +39,7 @@ 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-$(CONFIG_RTE_LIBRTE_NFB_PMD) += nfb
DIRS-$(CONFIG_RTE_LIBRTE_NFP_PMD) += nfp
DIRS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt
DIRS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += null

1
drivers/net/meson.build
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@ -28,6 +28,7 @@ drivers = ['af_packet',
'mvneta',
'mvpp2',
'netvsc',
'nfb',
'nfp',
'null', 'octeontx', 'pcap', 'qede', 'ring',
'sfc',

42
drivers/net/nfb/Makefile Normal file
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@ -0,0 +1,42 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2019 Cesnet
# Copyright(c) 2019 Netcope Technologies, a.s. <info@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)
CFLAGS += $(shell command -v pkg-config > /dev/null 2>&1 && pkg-config --cflags netcope-common)
LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool
LDLIBS += -lrte_ethdev -lrte_net
LDLIBS += -lrte_bus_pci
LDLIBS += $(shell command -v pkg-config > /dev/null 2>&1 && pkg-config --libs netcope-common)
EXPORT_MAP := rte_pmd_nfb_version.map
LIBABIVER := 1
#
# all source are stored in SRCS-y
#
SRCS-$(CONFIG_RTE_LIBRTE_NFB_PMD) += nfb_ethdev.c
SRCS-$(CONFIG_RTE_LIBRTE_NFB_PMD) += nfb_rx.c
SRCS-$(CONFIG_RTE_LIBRTE_NFB_PMD) += nfb_tx.c
SRCS-$(CONFIG_RTE_LIBRTE_NFB_PMD) += nfb_stats.c
SRCS-$(CONFIG_RTE_LIBRTE_NFB_PMD) += nfb_rxmode.c
#
# Export include files
#
SYMLINK-y-include +=
include $(RTE_SDK)/mk/rte.lib.mk

15
drivers/net/nfb/meson.build Normal file
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@ -0,0 +1,15 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2019 Cesnet
# Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
# All rights reserved.
dep = cc.find_library('nfb', required: false)
build = dep.found() and cc.has_header('nfb/nfb.h', dependencies: dep)
nc = dependency('netcope-common', required: false)
ext_deps += dep
ext_deps += nc
sources = files('nfb_rx.c', 'nfb_tx.c', 'nfb_stats.c', 'nfb_ethdev.c', 'nfb_rxmode.c')

50
drivers/net/nfb/nfb.h Normal file
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@ -0,0 +1,50 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@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 promiscuous or filtering by table,
* when disabling allmulticast
*/
enum nc_rxmac_mac_filter rx_filter_original;
};
#endif /* _NFB_H_ */

579
drivers/net/nfb/nfb_ethdev.c Normal file
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@ -0,0 +1,579 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
* All rights reserved.
*/
#include <nfb/nfb.h>
#include <nfb/ndp.h>
#include <netcope/rxmac.h>
#include <netcope/txmac.h>
#include <rte_ethdev_pci.h>
#include "nfb_stats.h"
#include "nfb_rx.h"
#include "nfb_tx.h"
#include "nfb_rxmode.h"
#include "nfb.h"
/**
* Default MAC addr
*/
static const 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.
*/
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.
*/
static int
nfb_eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
{
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->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->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.
*/
static int
nfb_eth_link_update(struct rte_eth_dev *dev,
int wait_to_complete __rte_unused)
{
uint16_t i;
struct nc_rxmac_status status;
struct rte_eth_link link;
memset(&link, 0, sizeof(link));
struct pmd_internals *internals = dev->data->dev_private;
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;
}
}
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.
*/
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.
*/
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.
*/
static int
nfb_eth_mac_addr_set(struct rte_eth_dev *dev,
struct ether_addr *mac_addr)
{
unsigned int i;
uint64_t mac = 0;
struct rte_eth_dev_data *data = dev->data;
struct pmd_internals *internals = (struct pmd_internals *)
data->dev_private;
if (!is_valid_assigned_ether_addr(mac_addr))
return -EINVAL;
for (i = 0; i < ETHER_ADDR_LEN; i++) {
mac <<= 8;
mac |= mac_addr->addr_bytes[i] & 0xFF;
}
for (i = 0; i < internals->max_rxmac; ++i)
nc_rxmac_set_mac(internals->rxmac[i], 0, mac, 1);
ether_addr_copy(mac_addr, data->mac_addrs);
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.
*/
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;
struct ether_addr eth_addr_init;
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;
/* 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;
}
eth_random_addr(eth_addr_init.addr_bytes);
eth_addr_init.addr_bytes[0] = eth_addr.addr_bytes[0];
eth_addr_init.addr_bytes[1] = eth_addr.addr_bytes[1];
eth_addr_init.addr_bytes[2] = eth_addr.addr_bytes[2];
nfb_eth_mac_addr_set(dev, &eth_addr_init);
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.
*/
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;
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.
*/
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");

127
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@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];
int ret;
if (rxq->queue == NULL) {
RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
return -EINVAL;
}
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];
int ret;
if (rxq->queue == NULL) {
RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
return -EINVAL;
}
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;
int ret;
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;
}
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)
{
const struct rte_pktmbuf_pool_private *mbp_priv =
rte_mempool_get_priv(mb_pool);
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;
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;
}
}

202
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
* All rights reserved.
*/
#ifndef _NFB_RX_H_
#define _NFB_RX_H_
#include <nfb/nfb.h>
#include <nfb/ndp.h>
#include <rte_mbuf.h>
#include <rte_ethdev.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.
*/
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.
*/
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.
*/
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;
uint16_t packet_size;
uint64_t num_bytes = 0;
uint16_t num_rx;
unsigned int i;
const uint16_t buf_size = ndp->buf_size;
struct rte_mbuf *mbuf;
struct ndp_packet packets[nb_pkts];
struct rte_mbuf *mbufs[nb_pkts];
if (unlikely(ndp->queue == NULL || nb_pkts == 0)) {
RTE_LOG(ERR, PMD, "RX invalid arguments!\n");
return 0;
}
/* returns either all or nothing */
i = rte_pktmbuf_alloc_bulk(ndp->mb_pool, mbufs, nb_pkts);
if (unlikely(i != 0))
return 0;
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_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_ */

100
drivers/net/nfb/nfb_rxmode.c Normal file
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@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;
uint16_t i;
internals->rx_filter_original = RXMAC_MAC_FILTER_PROMISCUOUS;
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;
uint16_t i;
internals->rx_filter_original = RXMAC_MAC_FILTER_TABLE;
/* if promisc is not enabled, do nothing */
if (!nfb_eth_promiscuous_get(dev))
return;
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)
{
struct pmd_internals *internals = (struct pmd_internals *)
dev->data->dev_private;
uint16_t i;
/* if multicast is not enabled do nothing */
if (!nfb_eth_allmulticast_get(dev))
return;
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);
}

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drivers/net/nfb/nfb_rxmode.h Normal file
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
* All rights reserved.
*/
#ifndef _NFB_RXMODE_H_
#define _NFB_RXMODE_H_
#include <nfb/nfb.h>
#include <nfb/ndp.h>
#include <rte_ethdev.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_ */

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@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 += rx_queue[i].rx_pkts;
rx_total_bytes += rx_queue[i].rx_bytes;
}
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;
}
tx_total += tx_queue[i].tx_pkts;
tx_total_bytes += tx_queue[i].tx_bytes;
tx_err_total += tx_queue[i].err_pkts;
}
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;
}
}

38
drivers/net/nfb/nfb_stats.h Normal file
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
* All rights reserved.
*/
#ifndef _NFB_STATS_H_
#define _NFB_STATS_H_
#include <nfb/nfb.h>
#include <nfb/ndp.h>
#include <rte_ethdev.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.
*/
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_ */

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drivers/net/nfb/nfb_tx.c Normal file
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@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];
int ret;
if (txq->queue == NULL) {
RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
return -EINVAL;
}
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];
int ret;
if (txq->queue == NULL) {
RTE_LOG(ERR, PMD, "TX NDP queue is NULL!\n");
return -EINVAL;
}
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;
int ret;
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;
}
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;
}
}

193
drivers/net/nfb/nfb_tx.h Normal file
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@ -0,0 +1,193 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Cesnet
* Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
* All rights reserved.
*/
#ifndef _NFB_TX_H_
#define _NFB_TX_H_
#include <nfb/nfb.h>
#include <nfb/ndp.h>
#include <rte_ethdev.h>
#include <rte_malloc.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.
*/
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.
*/
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.
*/
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.
*/
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, "TX 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_ */

4
drivers/net/nfb/rte_pmd_nfb_version.map Normal file
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@ -0,0 +1,4 @@
DPDK_19.05 {
local: *;
};

2
mk/rte.app.mk
View File

@ -198,6 +198,8 @@ _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_NFB_PMD) += -lrte_pmd_nfb
_LDLIBS-$(CONFIG_RTE_LIBRTE_NFB_PMD) += $(shell command -v pkg-config > /dev/null 2>&1 && pkg-config --libs netcope-common)
_LDLIBS-$(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