2023-09-13 12:21:49 +00:00
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.. SPDX-License-Identifier: BSD-3-Clause
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Copyright 2018-2022 Advanced Micro Devices, Inc.
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2021-02-05 08:48:47 +00:00
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IONIC Driver
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============
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2023-09-13 12:21:49 +00:00
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The ionic driver provides support for AMD Pensando server adapters.
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It currently supports the below models:
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2023-09-13 12:21:49 +00:00
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- DSC-25 dual-port 25G Distributed Services Card `(pdf) <https://pensandoio.secure.force.com/DownloadFile?id=a0L4T000004IKurUAG>`__
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- DSC-100 dual-port 100G Distributed Services Card `(pdf) <https://pensandoio.secure.force.com/DownloadFile?id=a0L4T000004IKuwUAG>`__
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- DSC-200 dual-port 200G Distributed Services Card `(pdf) <https://www.amd.com/system/files/documents/pensando-dsc-200-product-brief.pdf>`__
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2023-09-13 12:21:49 +00:00
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Please visit the AMD Pensando web site at https://www.amd.com/en/accelerators/pensando for more information.
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2021-02-05 08:48:47 +00:00
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Identifying the Adapter
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-----------------------
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To determine if one or more AMD Pensando DSC Ethernet devices are installed
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on the host, check for the PCI devices:
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.. code-block:: console
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lspci -d 1dd8:
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b5:00.0 Ethernet controller: Device 1dd8:1002
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b6:00.0 Ethernet controller: Device 1dd8:1002
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2022-09-06 04:00:10 +00:00
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Firmware Support
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----------------
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The ionic PMD requires firmware which supports 16 segment transmit SGLs.
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This support was added prior to version 1.0. For help upgrading older versions,
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please contact AMD Pensando support.
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Runtime Configuration
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---------------------
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- ``Queue in CMB support`` (default ``0``)
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Queue memory can be allocated from the Controller Memory Buffer (CMB) using
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the ``ionic_cmb`` ``devargs`` parameter.
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For example::
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-a 0000:b5:00.0,ionic_cmb=1
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Building DPDK
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-------------
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2022-09-06 04:00:10 +00:00
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The ionic PMD supports UIO and VFIO. Please refer to the
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:ref:`DPDK documentation that comes with the DPDK suite <linux_gsg>`
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for instructions on how to build DPDK.
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