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.. SPDX-License-Identifier: BSD-3-Clause
Copyright(c) 2016 QLogic Corporation
Copyright(c) 2017 Cavium, Inc
QEDE Poll Mode Driver
======================
The QEDE poll mode driver library (**librte_pmd_qede**) implements support
for **QLogic FastLinQ QL4xxxx 10G/25G/40G/50G/100G Intelligent Ethernet Adapters (IEA) and Converged Network Adapters (CNA)** family of adapters as well as SR-IOV virtual functions (VF). It is supported on
several standard Linux distros like RHEL7.x, SLES12.x and Ubuntu.
It is compile-tested under FreeBSD OS.
More information can be found at `QLogic Corporation's Website
<http://www.qlogic.com>`_.
Supported Features
------------------
- Unicast/Multicast filtering
- Promiscuous mode
- Allmulti mode
- Port hardware statistics
- Jumbo frames
- Multiple MAC address
- MTU change
- Default pause flow control
- Multiprocess aware
- Scatter-Gather
- Multiple Rx/Tx queues
- RSS (with RETA/hash table/key)
- TSS
- Stateless checksum offloads (IPv4/IPv6/TCP/UDP)
- LRO/TSO
- VLAN offload - Filtering and stripping
- N-tuple filter and flow director (limited support)
- NPAR (NIC Partitioning)
- SR-IOV VF
- GRE Tunneling offload
- GENEVE Tunneling offload
- VXLAN Tunneling offload
- MPLSoUDP Tx Tunneling offload
Non-supported Features
----------------------
- SR-IOV PF
Co-existence considerations
---------------------------
- QLogic FastLinQ QL4xxxx CNAs can have both NIC and Storage personalities. However, coexistence with storage protocol drivers (qedi and qedf) is not supported on the same adapter. So storage personality has to be disabled on that adapter when used in DPDK applications.
- For SR-IOV case, qede PMD will be used to bind to SR-IOV VF device and Linux native kernel driver (qede) will be attached to SR-IOV PF.
Supported QLogic Adapters
-------------------------
- QLogic FastLinQ QL4xxxx 10G/25G/40G/50G/100G Intelligent Ethernet Adapters (IEA) and Converged Network Adapters (CNA)
Prerequisites
-------------
- Requires storm firmware version **8.33.12.0**. Firmware may be available
inbox in certain newer Linux distros under the standard directory
``E.g. /lib/firmware/qed/qed_init_values-8.33.12.0.bin``.
If the required firmware files are not available then download it from
`linux-firmware git repository <http://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qed>`_
or `QLogic Driver Download Center <http://driverdownloads.qlogic.com/QLogicDriverDownloads_UI/DefaultNewSearch.aspx>`_.
To download firmware file from QLogic website, select adapter category, model and DPDK Poll Mode Driver.
- Requires management firmware (MFW) version **8.34.x.x** or higher to be
flashed on to the adapter. If the required management firmware is not
available then download from
`QLogic Driver Download Center <http://driverdownloads.qlogic.com/QLogicDriverDownloads_UI/DefaultNewSearch.aspx>`_.
For downloading firmware upgrade utility, select adapter category, model and Linux distro.
To flash the management firmware refer to the instructions in the QLogic Firmware Upgrade Utility Readme document.
- SR-IOV requires Linux PF driver version **8.20.x.x** or higher.
If the required PF driver is not available then download it from
`QLogic Driver Download Center <http://driverdownloads.qlogic.com/QLogicDriverDownloads_UI/DefaultNewSearch.aspx>`_.
For downloading PF driver, select adapter category, model and Linux distro.
Performance note
~~~~~~~~~~~~~~~~
- For better performance, it is recommended to use 4K or higher RX/TX rings.
Config File Options
~~~~~~~~~~~~~~~~~~~
The following options can be modified in the ``.config`` file. Please note that
enabling debugging options may affect system performance.
- ``CONFIG_RTE_LIBRTE_QEDE_PMD`` (default **y**)
Toggle compilation of QEDE PMD driver.
- ``CONFIG_RTE_LIBRTE_QEDE_DEBUG_TX`` (default **n**)
Toggle display of transmit fast path run-time messages.
- ``CONFIG_RTE_LIBRTE_QEDE_DEBUG_RX`` (default **n**)
Toggle display of receive fast path run-time messages.
- ``CONFIG_RTE_LIBRTE_QEDE_FW`` (default **""**)
Gives absolute path of firmware file.
``Eg: "/lib/firmware/qed/qed_init_values-8.33.12.0.bin"``
Empty string indicates driver will pick up the firmware file
from the default location /lib/firmware/qed.
CAUTION this option is more for custom firmware, it is not
recommended for use under normal condition.
Driver compilation and testing
------------------------------
Refer to the document :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>`
for details.
SR-IOV: Prerequisites and Sample Application Notes
--------------------------------------------------
This section provides instructions to configure SR-IOV with Linux OS.
**Note**: librte_pmd_qede will be used to bind to SR-IOV VF device and Linux native kernel driver (qede) will function as SR-IOV PF driver. Requires PF driver to be 8.20.x.x or higher.
#. Verify SR-IOV and ARI capability is enabled on the adapter using ``lspci``:
.. code-block:: console
lspci -s <slot> -vvv
Example output:
.. code-block:: console
[...]
Capabilities: [1b8 v1] Alternative Routing-ID Interpretation (ARI)
[...]
Capabilities: [1c0 v1] Single Root I/O Virtualization (SR-IOV)
[...]
Kernel driver in use: igb_uio
#. Load the kernel module:
.. code-block:: console
modprobe qede
Example output:
.. code-block:: console
systemd-udevd[4848]: renamed network interface eth0 to ens5f0
systemd-udevd[4848]: renamed network interface eth1 to ens5f1
#. Bring up the PF ports:
.. code-block:: console
ifconfig ens5f0 up
ifconfig ens5f1 up
#. Create VF device(s):
Echo the number of VFs to be created into ``"sriov_numvfs"`` sysfs entry
of the parent PF.
Example output:
.. code-block:: console
echo 2 > /sys/devices/pci0000:00/0000:00:03.0/0000:81:00.0/sriov_numvfs
#. Assign VF MAC address:
Assign MAC address to the VF using iproute2 utility. The syntax is::
ip link set <PF iface> vf <VF id> mac <macaddr>
Example output:
.. code-block:: console
ip link set ens5f0 vf 0 mac 52:54:00:2f:9d:e8
#. PCI Passthrough:
The VF devices may be passed through to the guest VM using ``virt-manager`` or
``virsh``. QEDE PMD should be used to bind the VF devices in the guest VM
using the instructions from Driver compilation and testing section above.
#. Running testpmd
(Supply ``--log-level="pmd.net.qede.driver:info`` to view informational messages):
Refer to the document
:ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>` to run
``testpmd`` application.
Example output:
.. code-block:: console
testpmd -l 0,4-11 -n 4 -- -i --nb-cores=8 --portmask=0xf --rxd=4096 \
--txd=4096 --txfreet=4068 --enable-rx-cksum --rxq=4 --txq=4 \
--rss-ip --rss-udp
[...]
EAL: PCI device 0000:84:00.0 on NUMA socket 1
EAL: probe driver: 1077:1634 rte_qede_pmd
EAL: Not managed by a supported kernel driver, skipped
EAL: PCI device 0000:84:00.1 on NUMA socket 1
EAL: probe driver: 1077:1634 rte_qede_pmd
EAL: Not managed by a supported kernel driver, skipped
EAL: PCI device 0000:88:00.0 on NUMA socket 1
EAL: probe driver: 1077:1656 rte_qede_pmd
EAL: PCI memory mapped at 0x7f738b200000
EAL: PCI memory mapped at 0x7f738b280000
EAL: PCI memory mapped at 0x7f738b300000
PMD: Chip details : BB1
PMD: Driver version : QEDE PMD 8.7.9.0_1.0.0
PMD: Firmware version : 8.7.7.0
PMD: Management firmware version : 8.7.8.0
PMD: Firmware file : /lib/firmware/qed/qed_init_values_zipped-8.7.7.0.bin
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_common_dev_init:macaddr \
00:0e:1e:d2:09:9c
[...]
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_tx_queue_setup:txq 0 num_desc 4096 \
tx_free_thresh 4068 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_tx_queue_setup:txq 1 num_desc 4096 \
tx_free_thresh 4068 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_tx_queue_setup:txq 2 num_desc 4096 \
tx_free_thresh 4068 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_tx_queue_setup:txq 3 num_desc 4096 \
tx_free_thresh 4068 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_rx_queue_setup:rxq 0 num_desc 4096 \
rx_buf_size=2148 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_rx_queue_setup:rxq 1 num_desc 4096 \
rx_buf_size=2148 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_rx_queue_setup:rxq 2 num_desc 4096 \
rx_buf_size=2148 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_rx_queue_setup:rxq 3 num_desc 4096 \
rx_buf_size=2148 socket 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_dev_start:port 0
[QEDE PMD: (84:00.0:dpdk-port-0)]qede_dev_start:link status: down
[...]
Checking link statuses...
Port 0 Link Up - speed 25000 Mbps - full-duplex
Port 1 Link Up - speed 25000 Mbps - full-duplex
Port 2 Link Up - speed 25000 Mbps - full-duplex
Port 3 Link Up - speed 25000 Mbps - full-duplex
Done
testpmd>
|
