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-Neterion's (Formerly S2io) X3100 Series 10GbE PCIe Server Adapter Linux driver
-==============================================================================
-
-Contents
---------
-
-1) Introduction
-2) Features supported
-3) Configurable driver parameters
-4) Troubleshooting
-
-1) Introduction:
-----------------
-This Linux driver supports all Neterion's X3100 series 10 GbE PCIe I/O
-Virtualized Server adapters.
-The X3100 series supports four modes of operation, configurable via
-firmware -
- Single function mode
- Multi function mode
- SRIOV mode
- MRIOV mode
-The functions share a 10GbE link and the pci-e bus, but hardly anything else
-inside the ASIC. Features like independent hw reset, statistics, bandwidth/
-priority allocation and guarantees, GRO, TSO, interrupt moderation etc are
-supported independently on each function.
-
-(See below for a complete list of features supported for both IPv4 and IPv6)
-
-2) Features supported:
-----------------------
-
-i) Single function mode (up to 17 queues)
-
-ii) Multi function mode (up to 17 functions)
-
-iii) PCI-SIG's I/O Virtualization
- - Single Root mode: v1.0 (up to 17 functions)
- - Multi-Root mode: v1.0 (up to 17 functions)
-
-iv) Jumbo frames
- X3100 Series supports MTU up to 9600 bytes, modifiable using
- ifconfig command.
-
-v) Offloads supported: (Enabled by default)
- Checksum offload (TCP/UDP/IP) on transmit and receive paths
- TCP Segmentation Offload (TSO) on transmit path
- Generic Receive Offload (GRO) on receive path
-
-vi) MSI-X: (Enabled by default)
- Resulting in noticeable performance improvement (up to 7% on certain
- platforms).
-
-vii) NAPI: (Enabled by default)
- For better Rx interrupt moderation.
-
-viii)RTH (Receive Traffic Hash): (Enabled by default)
- Receive side steering for better scaling.
-
-ix) Statistics
- Comprehensive MAC-level and software statistics displayed using
- "ethtool -S" option.
-
-x) Multiple hardware queues: (Enabled by default)
- Up to 17 hardware based transmit and receive data channels, with
- multiple steering options (transmit multiqueue enabled by default).
-
-3) Configurable driver parameters:
-----------------------------------
-
-i) max_config_dev
- Specifies maximum device functions to be enabled.
- Valid range: 1-8
-
-ii) max_config_port
- Specifies number of ports to be enabled.
- Valid range: 1,2
- Default: 1
-
-iii)max_config_vpath
- Specifies maximum VPATH(s) configured for each device function.
- Valid range: 1-17
-
-iv) vlan_tag_strip
- Enables/disables vlan tag stripping from all received tagged frames that
- are not replicated at the internal L2 switch.
- Valid range: 0,1 (disabled, enabled respectively)
- Default: 1
-
-v) addr_learn_en
- Enable learning the mac address of the guest OS interface in
- virtualization environment.
- Valid range: 0,1 (disabled, enabled respectively)
- Default: 0
-
-4) Troubleshooting:
--------------------
-
-To resolve an issue with the source code or X3100 series adapter, please collect
-the statistics, register dumps using ethool, relevant logs and email them to
-support@neterion.com.