mirror of https://github.com/F-Stack/f-stack.git
57 lines
1.9 KiB
ReStructuredText
57 lines
1.9 KiB
ReStructuredText
.. SPDX-License-Identifier: BSD-3-Clause
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Copyright (c) 2023 Corigine, Inc.
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NFP vDPA driver
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===============
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The NFP vDPA (vhost data path acceleration) driver (**librte_nfp_vdpa**)
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provides support for the Netronome and Corigine's
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NFP-6xxx, NFP-4xxx and NFP-38xx product lines.
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NFP vDPA implementation
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-----------------------
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NFP VF device can be configured in the net device or vDPA mode.
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Adding "class=vdpa" parameter helps to specify
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that this device is to be used in vDPA mode.
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If this parameter is not specified,
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device will be probed by net/nfp driver and will used as a VF net device.
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This PMD uses (common/nfp) code to access the device firmware.
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Per-Device Parameters
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~~~~~~~~~~~~~~~~~~~~~
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The following per-device parameters can be passed via EAL PCI device
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allow-list option like "-a 02:00.0,arg1=value1,...".
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- ``class`` [net|vdpa] (default **net**)
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Choose the mode of operation of nfp device.
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**net** device will work as network device and will be probed by net/nfp driver.
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**vdpa** device will work as vdpa device and will be probed by vdpa/nfp driver.
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If this parameter is not specified then nfp device will operate as network device.
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Dynamic Logging Parameters
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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One may leverage EAL option "--log-level" to change default levels
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for the log types supported by the driver.
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The option is used with an argument
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typically consisting of two parts separated by a colon.
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Level value is the last part which takes a symbolic name (or integer).
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Log type is the former part which may shell match syntax.
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Depending on the choice of the expression, the given log level may
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be used either for some specific log type or for a subset of types.
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NFP vDPA PMD provides the following log types available for control:
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- ``pmd.vdpa.nfp.vdpa`` (default level is **notice**)
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Affects driver-wide messages unrelated to any particular devices.
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- ``pmd.vdpa.nfp.core`` (default level is **notice**)
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Affects the core logic of this PMD.
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