-.. BSD LICENSE
- Copyright(c) 2017 Cavium, Inc.. All rights reserved.
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Cavium, Inc. nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2017 Cavium, Inc
LiquidIO VF Poll Mode Driver
============================
Supported LiquidIO Adapters
-----------------------------
-- LiquidIO II CN2350 210SV
-- LiquidIO II CN2360 210SV
+- LiquidIO II CN2350 210SV/225SV
+- LiquidIO II CN2350 210SVPT
+- LiquidIO II CN2360 210SV/225SV
+- LiquidIO II CN2360 210SVPT
Pre-Installation Configuration
Toggle compilation of LiquidIO PMD.
-- ``CONFIG_RTE_LIBRTE_LIO_DEBUG_DRIVER`` (default ``n``)
-
- Toggle display of generic debugging messages.
-
-- ``CONFIG_RTE_LIBRTE_LIO_DEBUG_INIT`` (default ``n``)
-
- Toggle display of initialization related messages.
-
- ``CONFIG_RTE_LIBRTE_LIO_DEBUG_RX`` (default ``n``)
Toggle display of receive fast path run-time messages.
Toggle display of register reads and writes.
-.. _lio_driver-compilation:
-
-Driver Compilation
-------------------
-
-To compile LiquidIO PMD for Linux x86_64 gcc target, run the following "make"
-command:
-
-.. code-block:: console
-
- cd <DPDK-source-directory>
- make install T=x86_64-native-linuxapp-gcc
-
-
-Sample Application Notes
-------------------------
-
-This section demonstrates how to launch ``testpmd`` with LiquidIO® CN23XX
-device managed by ``librte_pmd_lio`` in Linux operating system.
-
-#. Mount huge pages:
-
- .. code-block:: console
-
- mkdir /mnt/huge
- mount -t hugetlbfs nodev /mnt/huge
-
-#. Request huge pages:
-
- .. code-block:: console
-
- echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages/nr_hugepages
-
-#. Load ``vfio-pci`` driver:
-
- .. code-block:: console
-
- modprobe vfio-pci
-
-#. Bind the LiquidIO VFs to ``vfio-pci`` loaded in previous step:
-
- Setup VFIO permissions for regular users and then bind to ``vfio-pci``:
-
- .. code-block:: console
-
- sudo chmod a+x /dev/vfio
-
- sudo chmod 0666 /dev/vfio/*
-
- ./usertools/dpdk-devbind.py --bind vfio-pci 0000:03:00.3 0000:03:08.3
-
-#. Start ``testpmd`` with basic parameters:
-
- .. code-block:: console
-
- ./build/app/testpmd -c 0xf -n 4 -- -i
-
- Example output:
-
- .. code-block:: console
-
- [...]
- EAL: PCI device 0000:03:00.3 on NUMA socket 0
- EAL: probe driver: 177d:9712 net_liovf
- EAL: using IOMMU type 1 (Type 1)
- PMD: net_liovf[03:00.3]INFO: DEVICE : CN23XX VF
- EAL: PCI device 0000:03:08.3 on NUMA socket 0
- EAL: probe driver: 177d:9712 net_liovf
- PMD: net_liovf[03:08.3]INFO: DEVICE : CN23XX VF
- Interactive-mode selected
- USER1: create a new mbuf pool <mbuf_pool_socket_0>: n=171456, size=2176, socket=0
- Configuring Port 0 (socket 0)
- PMD: net_liovf[03:00.3]INFO: Starting port 0
- Port 0: F2:A8:1B:5E:B4:66
- Configuring Port 1 (socket 0)
- PMD: net_liovf[03:08.3]INFO: Starting port 1
- Port 1: 32:76:CC:EE:56:D7
- Checking link statuses...
- Port 0 Link Up - speed 10000 Mbps - full-duplex
- Port 1 Link Up - speed 10000 Mbps - full-duplex
- Done
- testpmd>
-
-
SR-IOV: Prerequisites and Sample Application Notes
--------------------------------------------------
echo 1 > /sys/bus/pci/devices/0000:03:00.0/sriov_numvfs
echo 1 > /sys/bus/pci/devices/0000:03:00.1/sriov_numvfs
-
#. Assign VF MAC address:
Assign MAC address to the VF using iproute2 utility. The syntax is::
ip link set p4p1 vf 0 mac F2:A8:1B:5E:B4:66
-
#. Assign VF(s) to VM.
The VF devices may be passed through to the guest VM using qemu or
-device virtio-blk-pci,scsi=off,drive=disk1,id=virtio-disk1,bootindex=1 \
-device vfio-pci,host=03:00.3 -device vfio-pci,host=03:08.3
-
#. Running testpmd
- Refer :ref:`notes above <lio_driver-compilation>`
- to compile and run ``testpmd`` application.
- Use ``igb_uio`` instead of ``vfio-pci`` in VM.
+ Refer to the document
+ :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>` to run
+ ``testpmd`` application.
+
+ .. note::
+
+ Use ``igb_uio`` instead of ``vfio-pci`` in VM.
+
+ Example output:
+
+ .. code-block:: console
+
+ [...]
+ EAL: PCI device 0000:03:00.3 on NUMA socket 0
+ EAL: probe driver: 177d:9712 net_liovf
+ EAL: using IOMMU type 1 (Type 1)
+ PMD: net_liovf[03:00.3]INFO: DEVICE : CN23XX VF
+ EAL: PCI device 0000:03:08.3 on NUMA socket 0
+ EAL: probe driver: 177d:9712 net_liovf
+ PMD: net_liovf[03:08.3]INFO: DEVICE : CN23XX VF
+ Interactive-mode selected
+ USER1: create a new mbuf pool <mbuf_pool_socket_0>: n=171456, size=2176, socket=0
+ Configuring Port 0 (socket 0)
+ PMD: net_liovf[03:00.3]INFO: Starting port 0
+ Port 0: F2:A8:1B:5E:B4:66
+ Configuring Port 1 (socket 0)
+ PMD: net_liovf[03:08.3]INFO: Starting port 1
+ Port 1: 32:76:CC:EE:56:D7
+ Checking link statuses...
+ Port 0 Link Up - speed 10000 Mbps - full-duplex
+ Port 1 Link Up - speed 10000 Mbps - full-duplex
+ Done
+ testpmd>
+
+#. Enabling VF promiscuous mode
+
+ One VF per PF can be marked as trusted for promiscuous mode.
+
+ .. code-block:: console
+
+ ip link set dev <PF iface> vf <VF id> trust on
Limitations
Number of descriptors for Rx/Tx ring should be in the range 128 to 512.
-CRC striping
-~~~~~~~~~~~~
+CRC stripping
+~~~~~~~~~~~~~
-LiquidIO adapters strip ethernet FCS of every packet coming to the host
-interface. So, CRC will be stripped even when the ``rxmode.hw_strip_crc``
-member is set to 0 in ``struct rte_eth_conf``.
+LiquidIO adapters strip ethernet FCS of every packet coming to the host interface.
git.droids-corp.org / dpdk.git / blobdiff