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This documentation covers introductions and limitations on Intel FM10000 series products. Signed-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com> Acked-by: John McNamara <john.mcnamara@intel.com>
68 lines
2.8 KiB
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68 lines
2.8 KiB
ReStructuredText
.. BSD LICENSE
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Copyright(c) 2015 Intel Corporation. All rights reserved.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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FM10K Poll Mode Driver
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======================
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The FM10K poll mode driver library provides support for the Intel FM10000
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(FM10K) family of 40GbE/100GbE adapters.
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Limitations
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-----------
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Switch manager
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~~~~~~~~~~~~~~
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The Intel FM10000 family of NICs integrate a hardware switch and multiple host
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interfaces. The FM10000 PMD driver only manages host interfaces. For the
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switch component another switch driver has to be loaded prior to to the
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FM10000 PMD driver. The switch driver can be acquired for Intel support or
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from the `Match Interface <https://github.com/match-interface>`_ project.
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Only Testpoint is validated with DPDK, the latest version that has been
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validated with DPDK2.2 is 4.1.6.
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CRC striping
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~~~~~~~~~~~~
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The FM10000 family of NICs strip the CRC for every packets coming into the
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host interface. So, CRC will be stripped even when the
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``rxmode.hw_strip_crc`` member is set to 0 in ``struct rte_eth_conf``.
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Maximum packet length
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~~~~~~~~~~~~~~~~~~~~~
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The FM10000 family of NICS support a maximum of a 15K jumbo frame. The value
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is fixed and cannot be changed. So, even when the ``rxmode.max_rx_pkt_len``
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member of ``struct rte_eth_conf`` is set to a value lower than 15364, frames
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up to 15364 bytes can still reach the host interface.
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