1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright(c) 2018 Intel Corporation.
7 The ice PMD (librte_pmd_ice) provides poll mode driver support for
8 10/25 Gbps IntelĀ® Ethernet 810 Series Network Adapters based on
9 the Intel Ethernet Controller E810.
15 - Identifying your adapter using `Intel Support
16 <http://www.intel.com/support>`_ and get the latest NVM/FW images.
18 - Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
20 - To get better performance on Intel platforms, please follow the "How to get best performance with NICs on Intel platforms"
21 section of the :ref:`Getting Started Guide for Linux <linux_gsg>`.
24 Pre-Installation Configuration
25 ------------------------------
30 The following options can be modified in the ``config`` file.
31 Please note that enabling debugging options may affect system performance.
33 - ``CONFIG_RTE_LIBRTE_ICE_PMD`` (default ``y``)
35 Toggle compilation of the ``librte_pmd_ice`` driver.
37 - ``CONFIG_RTE_LIBRTE_ICE_DEBUG_*`` (default ``n``)
39 Toggle display of generic debugging messages.
41 - ``CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC`` (default ``y``)
43 Toggle bulk allocation for RX.
45 - ``CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC`` (default ``n``)
47 Toggle to use a 16-byte RX descriptor, by default the RX descriptor is 32 byte.
49 Runtime Config Options
50 ~~~~~~~~~~~~~~~~~~~~~~
52 - ``Safe Mode Support`` (default ``0``)
54 If driver failed to load OS package, by default driver's initialization failed.
55 But if user intend to use the device without OS package, user can take ``devargs``
56 parameter ``safe-mode-support``, for example::
58 -w 80:00.0,safe-mode-support=1
60 Then the driver will be initialized successfully and the device will enter Safe Mode.
61 NOTE: In Safe mode, only very limited features are available, features like RSS,
62 checksum, fdir, tunneling ... are all disabled.
64 Driver compilation and testing
65 ------------------------------
67 Refer to the document :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>`
76 Vector PMD for RX and TX path are selected automatically. The paths
77 are chosen based on 2 conditions.
80 On the X86 platform, the driver checks if the CPU supports AVX2.
81 If it's supported, AVX2 paths will be chosen. If not, SSE is chosen.
83 - ``Offload features``
84 The supported HW offload features are described in the document ice_vec.ini.
85 If any not supported features are used, ICE vector PMD is disabled and the
86 normal paths are chosen.
88 Malicious driver detection (MDD)
89 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
91 It's not appropriate to send a packet, if this packet's destination MAC address
92 is just this port's MAC address. If SW tries to send such packets, HW will
93 report a MDD event and drop the packets.
95 The APPs based on DPDK should avoid providing such packets.
97 Sample Application Notes
98 ------------------------
103 Vlan filter only works when Promiscuous mode is off.
105 To start ``testpmd``, and add vlan 10 to port 0:
107 .. code-block:: console
109 ./app/testpmd -l 0-15 -n 4 -- -i
112 testpmd> rx_vlan add 10 0
114 Limitations or Known issues
115 ---------------------------
117 The Intel E810 requires a programmable pipeline package be downloaded
118 by the driver to support normal operations. The E810 has a limited
119 functionality built in to allow PXE boot and other use cases, but the
120 driver must download a package file during the driver initialization
123 The default DDP package file name is ice.pkg. For a specific NIC, the
124 DDP package supposed to be loaded can have a filename: ice-xxxxxx.pkg,
125 where 'xxxxxx' is the 64-bit PCIe Device Serial Number of the NIC. For
126 example, if the NIC's device serial number is 00-CC-BB-FF-FF-AA-05-68,
127 the device-specific DDP package filename is ice-00ccbbffffaa0568.pkg
128 (in hex and all low case). During initialization, the driver searches
129 in the following paths in order: /lib/firmware/updates/intel/ice/ddp
130 and /lib/firmware/intel/ice/ddp. The corresponding device-specific DDP
131 package will be downloaded first if the file exists. If not, then the
132 driver tries to load the default package. The type of loaded package
133 is stored in ``ice_adapter->active_pkg_type``.
135 A symbolic link to the DDP package file is also ok. The same package
136 file is used by both the kernel driver and the DPDK PMD.
141 Ice code released in 19.02 is for evaluation only.